CN209012424U - A kind of automobile air brake return valve sealing gasket for valve - Google Patents

Abstract

The utility model discloses a kind of automobile air brake return valve sealing gasket for valve, including ring skeleton, the upper and lower surfaces of the ring skeleton are covered with rubber layer, ring holder is installed in the ring skeleton, ring block corresponding with ring holder is installed in the rubber layer, if being provided with dry passage between the ring holder and ring block, the ring holder is to the projecting inward formation support column in channel, spring is installed on the support column, jacking block is installed between the spring and ring block, several protrusions are provided on the lateral surface of the ring block, the rubber layer is arranged jagged at ring block lateral surface both ends.The utility model, by the effect of spring, makes jacking block press ring block when gasket is worn, and ring block deforms press rubber layer, deforms rubber layer and then fills up abrasion gap, the problem for preventing from causing leakproofness deficiency because of gasket abrasion.

Description

A kind of automobile air brake return valve sealing gasket for valve

Technical field

The utility model relates to sealing gasket for valve technical field more particularly to a kind of automobile air brake return valve valve are close Packing.

Background technique

Drier is using the moisture in compressed air of the molecular sieve absorption from compressor, so that cleaning and drying are entire Brake piping.It efficiently solves because ponding and greasy dirt cause metalwork corrosion in braking system, rubber parts cracking, lubricating grease point The failures such as solution, pipeline blockage extend the service life of braking member.

Return valve valve seal cushion function: having the function of adjusting vehicle operating air pressure, sets when whole system pressure is higher than When level pressure force value, pressure regulation partially opens return valve valve, inflates the compressed air of air inlet to drying cylinder, regenerates in air tank Compressed air be discharged by channel, desiccant, annular access, dry strainer, access, drain tap from exhaust outlet, thus will The moisture of desiccant absorption is discharged by blowback air-flow, and when whole system pressure is lower than setup pressure value, gasket is closed back Valve valve is flowed to close.

When return valve sealing gasket for valve works, the closure of plane is combined to control high pressure draught on valve port and valve assembly It is on and off, so return valve sealing gasket for valve plays decisive action to the sealing of gas brake air.Similar products import parts are Using metal material skeleton, product material feeding point is in the shortcomings that inner port edge, this infrastructure product production product: metallic framework is connect Moisture in touching drier easily gets rusty failure, and material feeding point interior the edge of the circle (at three uniformly distributed), excessively concentrate, unfavorable by negligible amounts It is flowed in sizing material, the slow flow rate effect product rubber performance of high temperature；Import parts mostly use fluorubber, and sizing material resilience is poor, leakproofness Deficiency, and production cost is higher.It is this reality that the automobile air brake return valve of good airproof performance a kind of, which how to be designed, with sealing gasket for valve With novel technical problem to be solved.

Utility model content

In view of the shortcomings of the prior art, the utility model provides a kind of automobile air brake return valve valves of good airproof performance Gasket is technical problem to be solved in the utility model.

The utility model is realized by following technological means solves above-mentioned technical problem:

A kind of automobile air brake return valve sealing gasket for valve, including ring skeleton, the upper surface of the ring skeleton and Lower surface is covered with rubber layer, and ring holder is equipped in the ring skeleton, be equipped in the rubber layer and The corresponding ring block of ring holder, if being provided with dry passage between the ring holder and ring block, the annular branch Support is equipped with spring on the support column, is equipped between the spring and ring block to the projecting inward formation support column in channel Jacking block is provided with several protrusions on the lateral surface of the ring block, and the rubber layer is provided at ring block lateral surface both ends Notch.

Preferably, a kind of automobile air brake return valve sealing gasket for valve, the ring skeleton are anodic oxygen Change aluminium skeleton, the rubber layer is cricoid nitrile rubber part, and the ring block is mutability rubber parts.

Preferably, a kind of automobile air brake return valve sealing gasket for valve, the protrusion on the ring block are half It is spherical.

Preferably, a kind of automobile air brake return valve sealing gasket for valve, the notch are ellipse or circle Shape.

Preferably, near side (ns) is leaned in a kind of automobile air brake return valve sealing gasket for valve, the rubber layer outer surface There are six material feeding points for evenly spaced setting at.

Utility model has the advantages that the utility model, by the effect of spring, makes jacking block top when gasket is worn Ring block is pressed, ring block deformation press rubber layer deforms rubber layer and then fills up abrasion gap, prevents due to gasket is worn Cause the problem of leakproofness deficiency.

Further, using anodised aluminium skeletal support rubber layer, previous metal material skeleton, anodic oxidation are eliminated Back skeleton surface is not easy to get rusty；Make product during the work time will not be with failure of getting rusty after the contact with moisture in drier.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of the utility model.

Fig. 2 is the structural schematic diagram of the utility model ring skeleton.

Fig. 3 is the top view of the utility model ring skeleton.

Fig. 4 is the structural schematic diagram of the utility model ring skeleton upper rubber layer.

Fig. 5 is the structural schematic diagram of the utility model ring holder.

Fig. 6 is the structural schematic diagram of the utility model ring block.

Specific embodiment

It is practical new below in conjunction with this to keep the objectives, technical solutions, and advantages of the embodiments of the present invention clearer Attached drawing in type embodiment, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that is retouched The embodiment stated is the utility model a part of the embodiment, instead of all the embodiments.Based on the implementation in the utility model Example, every other embodiment obtained by those of ordinary skill in the art without making creative efforts belong to The range of the utility model protection.

A kind of automobile air brake return valve sealing gasket for valve, including ring skeleton 1, the upper surface of the ring skeleton 1 It is covered with rubber layer 2 with lower surface, ring holder 3, peace in the rubber layer 2 are installed in the ring skeleton 1 Equipped with the corresponding ring block 4 of ring holder 3, if being provided with dry passage 5 between the ring holder 3 and ring block 4, The ring holder 3 is equipped with spring 7, the spring 7 and ring on the support column 6 to the projecting inward formation support column 6 in channel Jacking block 8 is installed between shape block 4, is provided with several raised 9 on the lateral surface of the ring block 4, the rubber layer 2 is in ring block Jagged 10 are arranged at 4 lateral surface both ends.

Gasket using when be often subject to wear, and abration position is not fixed, and be easy to cause gasket somewhere serious wear And there is gap, the utility model is when gasket is worn, and by the effect of spring, jacking block is made to press ring block, and ring block becomes Shape presses rubber layer, deforms rubber layer and then fills up abrasion gap, prevents from causing leakproofness insufficient because gasket is worn Problem；Notch is arranged in rubber layer at ring block lateral surface both ends, and rubber layer is easier to be deformed by press, guarantees that effect is filled up in gap Fruit.

Preferably, the ring skeleton 1 is anodised aluminium skeleton, and the rubber layer 2 is cricoid nitrile rubber Part, the ring block 4 are mutability rubber parts.

Using anodised aluminium skeletal support rubber layer, previous metal material skeleton, anodic oxidation back skeleton are eliminated Surface is not easy to get rusty；Make product during the work time will not be with failure of getting rusty after the contact with moisture in drier；

Preferably, the protrusion 9 on the ring block 4 is hemispherical.

Preferably, the notch 10 is ellipse or circle.

Preferably, close to the evenly spaced setting in edge, there are six material feeding points 11 for 2 outer surface of rubber layer.

Material feeding point moves on to outer circular edge (being evenly distributed at six) by inner circle (three is uniformly distributed), and quantity increases, and accelerates rubber material Flow velocity guarantees the rubber performance under high temperature.

The utility model, by the effect of spring, makes jacking block press ring block, ring block deformation top when gasket is worn Rubber layer is pressed, rubber layer is deformed and then fills up abrasion gap, the problem for preventing from causing leakproofness deficiency because of gasket abrasion； Further, using anodised aluminium skeletal support rubber layer, previous metal material skeleton, anodic oxidation back skeleton table are eliminated Face is not easy to get rusty；Make product during the work time will not be with failure of getting rusty after the contact with moisture in drier.

It should be noted that, in this document, such as first and second or the like relational terms are used merely to one if it exists A entity or operation with another entity or operate distinguish, without necessarily requiring or implying these entities or operation it Between there are any actual relationship or orders.Moreover, the terms "include", "comprise" or its any other variant are intended to Cover non-exclusive inclusion, so that the process, method, article or equipment for including a series of elements not only includes those Element, but also including other elements that are not explicitly listed, or further include for this process, method, article or setting Standby intrinsic element.In the absence of more restrictions, the element limited by sentence "including a ...", it is not excluded that There is also other identical elements in the process, method, article or apparatus that includes the element.

Above embodiments are only to illustrate the technical solution of the utility model, rather than its limitations；Although referring to aforementioned reality Example is applied the utility model is described in detail, those skilled in the art should understand that: it still can be to preceding Technical solution documented by each embodiment is stated to modify or equivalent replacement of some of the technical features；And these It modifies or replaces, the spirit and model of various embodiments of the utility model technical solution that it does not separate the essence of the corresponding technical solution It encloses.

Claims (5)

1. a kind of automobile air brake return valve sealing gasket for valve, it is characterised in that: including ring skeleton, the ring skeleton Upper and lower surfaces are covered with rubber layer, are equipped with ring holder in the ring skeleton, in the rubber layer Ring block corresponding with ring holder is installed, if being provided with dry passage between the ring holder and ring block, institute Ring holder is stated to the projecting inward formation support column in channel, spring is installed on the support column, the spring and ring block it Between jacking block is installed, several protrusions are provided on the lateral surface of the ring block, the rubber layer is at ring block lateral surface both ends Place's setting is jagged.

2. a kind of automobile air brake return valve sealing gasket for valve according to claim 1, it is characterised in that: the ring Shape skeleton is anodised aluminium skeleton, and the rubber layer is cricoid nitrile rubber part, and the ring block is mutability rubber Glue part.

3. a kind of automobile air brake return valve sealing gasket for valve according to claim 1, it is characterised in that: the annular Protrusion on block is hemispherical.

4. a kind of automobile air brake return valve sealing gasket for valve according to claim 1, it is characterised in that: described lacks Mouth is ellipse or circle.

5. a kind of automobile air brake return valve sealing gasket for valve according to claim 1, it is characterised in that: the rubber Close to the evenly spaced setting in edge, there are six material feeding points for layer outer surface.