Inserted radiator valve with supplying or discharging connecting pipe

FIELD: valving.

SUBSTANCE: inserted radiator valve with connecting member comprises housing and seal zone for sealing the region of the connection with the supplying or discharging connecting pipe. The seal zone is made of the first radial inner seal that acts inside and the second radial outer seal that acts from outside. The first seal and the second seal are interconnected through the opening provided in the housing.

EFFECT: enhanced functional capabilities.

10 cl, 3 dwg

 

The invention relates to a push-in radiator valve with connection element having a housing and a seal for sealing the junction with the inlet or outlet fitting.

Push-in radiator valve of this kind is known from DE 3600130 A1. Here, the connecting element is inserted into the inlet or outlet fitting. The o-ring is placed between the connecting element and fitting, it prevents the passage of fluid through the sealing fitting and the fitting.

Another solution is disclosed in DE 20020024 U1. Here, the connecting element is placed on the fitting on the outside. When this o-ring that forms a seal which is placed in the inside groove. It also sealed the connection area between the fitting and the connecting element.

Usually determine from the outside, what type of seal is selected in the radiator valve, it is impossible. This leads to problems, for example, during repair work on the replacement plug valve or its parts. In such cases, the worker is forced to keep ready a large number of spare parts.

The basis of the invention is to increase the versatility of this design.

This task in the case of plug-in radiator valve, type mentioned at the beginning, resh is on due to the fact, the seal consists of a first, radially inner, seal, acting on the inside, and a second, radially outer, seal, acting on the outside.

This plug valve can be used in many cases. The connecting element can push in fitting. In this case, the second seal works because it acts radially outward. In another embodiment, the connecting element can stick to the fitting on the outside, and begins to work the first seal acting radially inwards. Thus, the number of required spare parts almost halved, and the employee is in the process of repair is able to repair a large part of the used vehicle.

Preferably the inner diameter of the first seal should be different from the outer diameter of the second seal. Thanks to one and the same plug valve can be used with the fittings of different diameters. If we are talking about a large diameter, then use a second seal acting radially outward.

In this case, the connecting element is inserted into the fitting. If we are talking about fitting a smaller diameter, the connecting element is placed on the fitting on the outside, and begins to work the first seal acting radially inwards.

Preferably per the first and second seals must be connected to each other through the body. Thus, simply implement the fixing seals to the housing with a sufficient holding force. In this case, both seals not only seal the various diameters of the fittings, but each of the seals at the same time serves as a retainer for the second seal. The connection through the body to carry out is easy, because the body is made of several distributed around the circumference of the holes, and through these holes you can create a connection between the first and second seal.

Preferably the first and second seals are made on the body by way of injection molding. This is a relatively simple way. The casing is put in a form for casting. After this method of injection molding simultaneously produced and combined with the housing first and second seal. Due to the molding receive the connection, the strength of which is sufficient for the connecting element can be inserted or put on the fitting without separation of the seal from the case.

Preferably the housing is made as a molded plastic product. You can choose a plastic molding, the material from which both seals will be well to cast. In this case, the manufacture of the connecting element can be made in two successive process of casting for the pressure, that is, the production can largely be automated.

It is especially preferred that the seals were made of a soft elastomer material with rubber elasticity. In principle, the seals are only statically, i.e. they are practically not subjected to dynamic loads. Therefore, the seal may be relatively soft, their sizes are chosen solely with regard to the problem of sealing. Such seals are capable of sealing the inner or outer surface of the fitting even with small irregularities.

Preferably the first and second seal placed on the body with an offset along the axis relative to each other. This design has the advantage that the first seal seals the cylindrical fitting relatively small diameter, and a second seal at the same time seals the fitting relatively large diameter. In addition, the forces acting on each seal are independent from each other, which allows independent selection.

The connection between the first and second seal preferably should have a jumper located parallel to the axis of the housing. This jumper allows to some extent to pass efforts stretching between the first and second seal, so change state the seal, which in the axial direction is located farther from the end of the housing, when the connection of the connecting element with fitting one should not fear. This seal is firmly held by the second seal and the bridge, which runs parallel to the axis.

Preferably both the first and second seal must have a valid case in the axial direction of the supporting edge, which creates a force opposite to the force acting on the seal when putting. Thus, in the case of each seal has a recess or a protrusion, which together form located on the circle of the collar, on which is placed a reference edge. If the connecting element pull on the fitting or vidvigayt it, this seal is, of course, there are forces for which there is a risk that the seal is moved relative to the coupling element. However, thanks to the support edge is a risk that the seal is moved relative to the coupling element, is minimized.

Preferably on the same side of the first seal, which is opposite the base edge, there should be no support. This facilitates manufacture of the valve, the manufacture of the body much easier.

Preferably the casing is placed a valve seat that is performed on the body of the method is om die casting. In this case, as the valve seat can be used by the connecting element. Casting material, which is different from the material body, can be relatively accurately to make a saddle in accordance with defined requirements.

Especially preferably, the valve seat and both seals were made of the same material. This simplifies the production. Both the seal and the valve seat can be made within a single operation.

Hereinafter the invention is described in more detail by the example of the preferred variants of the invention, the description is accompanied by drawings. While the drawings depict the following:

Figure 1 is a schematic cross-section push-in radiator valve with connection element.

Figure 2 - the second variant of the coupling element.

Figure 3 is the third version of the connecting element.

Figure 1 shows the push-in radiator valve 1 with a housing 2 in which the plunger 3 valve 4 shutter valve.

The shutter 4 interacts with the seat 5 of the valve seat 5 of the valve is formed on the connecting element 6.

The bolt 4 through the opening spring 7 presses against the seat 5 of the valve. In the closing direction operates the drive shaft 9. The drive shaft 9 by means of actuators (not shown here) may in pain the she or lesser degree to enter into the housing 2, in order to adjust the gap between the shutter 4 and the seat 5 of the valve.

The housing 2 has a discharge nozzle 11, which can be equipped with mounting thread 12.

The connecting element 6 is installed in the fitting 10, which is shown in phantom line. In the connecting element 6 has a through hole 13, which passes from the inlet 14 to the seat 5 of the valve.

In an alternative implementation of the connecting element 6 can be mounted to the outside of the fitting 15, which is shown by the dashed line. In this case, the fitting 15 is inserted into the inlet 14, and at the same time and in the through hole 13.

In the place where the connecting element 6 is attached to the fitting 15 (fitting smaller diameter), provided the first seal 16, which in the radial direction is an internal seal valve, i.e. it is attached externally to the wall of the fitting 15.

Offset along the Central axis 17 of the connecting element 6 and the first seal 16 in the valve made the second seal 18, which in the radial direction is outside. If the connecting element 6 is inserted into the socket 10 of larger diameter, the seal 18 is adjacent to the inner wall of the fitting.

Thus, both seals 16 and 18 form a seal composed of two seals. The inner diameter of the first seal 16 significant is considerable less than the external diameter of the second seal 18. Due to this, the connecting element 6 can be used either to seal the tube of larger internal diameter that matches the outer diameter of the second seal 18, or for sealing pipes of smaller diameter, the outer diameter of which corresponds to the inner diameter of the first seal 16.

In the connecting element 6 has a housing 19 made of capable of molding plastics. Thus, the housing 19 is a cast product. On the housing 19 by way of injection molding is performed by two seals 16 and 18. Both seals 16 and 18 are made of a soft elastomer, which has elasticity, i.e. this material is also capable of casting under pressure.

For the manufacture of the sealing body 19 is placed in proper form for molding, and then by molding the elastomeric material to form a seal 16 and 18.

In the field of seals 16 and 18 in the casing is made of several distributed around the circumference of the holes through which the seals 16 and 18 are interconnected. This connection comprises a crosspiece 20, which essentially runs parallel to the axis 17. Since the load acting on the seals 16 and 18 when installed in the socket 10 or the putting on the nipple 15, chiefly parallel to the axis 17, jumpers 20 helps keep TP the deposits 16 and 18 in the housing 19.

In addition, the housing 19 has a first control edge 21 for the first seal and the second control edge 22 to the second seal. The supporting edges 21 and 22 adjacent the seals 16 and 18, thereby creating an additional barrier to the shift of the seals 16 and 18 relative to the housing 19 of the connecting element when installing or handling the coupling element 6 in the nozzle 10 or the nozzle 15. Both the reference edges 21 and 22 are designed in such a way that the housing 19 and the seal 16 and 18 pass each other without forming steps.

On the contrary, from the inlet 14 is no support for the seal 16 is not provided. Here the seal 16 to hold the second seal 18 via jumper wires 20. For the second seal 18 also do not need any specific steps. This seal is fixed by the recess 23 in the housing 19 and is not shown here, parts of the casing 19 between the holes, through which are connected to each other seals 16 and 18.

Figure 2 shows the design of the connecting element 6, part numbers here are the same as in figure 1.

In contrast to the design shown in figure 1, here the first seal 16 and the second seal 18 in the axial direction are on the same level. They are formed by two rings connected to each other by crosspieces 24, pohodami the through holes 25 in the housing 19 of the connecting element 6. A longitudinal section of both seals 16 and 18 are in the form of rivets.

Figure 3 shows another variant of the design of the connecting element 6. This design is different from the version presented in figure 1, so that the upper end of the body 19 of the seat 5 of the valve is placed in a support 25 of the valve seat. The support 25 of the valve seat are made from the same elastic material as both seals 16 and 18. It is made in the housing 19 by casting under pressure within one working step together with the seals 16 and 18.

1. Push-in radiator valve with connection element having a housing and a seal for sealing the junction with the inlet or outlet fitting, characterized in that the seal comprises a first, radially inner seal (16), the current inside, and the second, radially outer seal (18)acting on the outside, and the first seal (16) and a second seal (18) are connected to each other through holes (25) in the housing (19).

2. The valve according to claim 1, characterized in that the inner diameter of the first seal (16) differs from the outer diameter of the second seal (18).

3. The valve according to claim 1, characterized in that the first seal (16) and a second seal (18) is made on the housing (19) by way of injection molding.

4. The valve according to claim 3, characterized in that orpus (19) is made as a molded plastic product.

5. The valve according to claim 4, characterized in that the seal (16) and (18) are made of a soft elastomer material with rubber elasticity.

6. Valve according to any one of claims 1 to 5, characterized in that the first seal (16) and a second seal (18) is placed on the housing (19) with an offset along the axis relative to each other.

7. The valve according to claim 6, characterized in that the connection between the first seal (16) and a second seal (18) has a crosspiece (20)located parallel to the axis of the housing.

8. The valve according to claim 1, characterized in that the first seal (16)and a second seal (18) in the housing (19) have the support edge (21, 22), which creates a force opposite to the force acting on the seal when it is handling.

9. The valve according to claim 1, characterized in that the casing (19) placed the saddle (5) valve, made on the body by casting under pressure.

10. The valve according to claim 9, characterized in that the seat (5) of the valve and both seals (16, 18) are made of the same material.



 

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