Parking cavity diaphragm positioning structure for double-diaphragm disc brake chamber

Abstract

The utility model discloses a parking cavity diaphragm positioning structure for a double-diaphragm disc type brake chamber. The parking cavity diaphragm positioning structure comprises a middle body sealing structure, a diaphragm, an aluminum release disc, a cylinder body and a release bolt, the middle body sealing structure comprises a middle body, a tappet penetrates through the middle of the middle body, one end of the tappet is connected with a first tappet disc in a riveting mode, the other end of the tappet is connected with a second tappet disc in a riveting mode, a groove is formed in the position, located at the connecting position of the middle body and the tappet, of the middle body, and a sealing assembly is arranged in the groove. The parking cavity diaphragm positioning structure for the double-diaphragm disc type brake chamber is convenient to use, the sealing assembly is arranged, hard friction between the tappet and an inner hole of the middle body is reduced, the service life of a product is prolonged, meanwhile, the parking cavity diaphragm increases center positioning of the release disc, and the service life of the product is prolonged. Damage to the release disc and the spring due to the fact that the leather film and the release disc are not positioned in the prior art when the parking cavity works is reduced, and reliability of products and stability of output force are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of brake chambers, in particular to a parking chamber diaphragm positioning structure for a double-diaphragm disc brake chamber. Background Technique

[0002] When the existing parking chamber of a double-diaphragm disc brake chamber works, the release disc and the spring are damaged due to the lack of positioning between the diaphragm and the release disc.

[0003] Based on the above situation, the utility model provides a parking chamber diaphragm positioning structure for a double-diaphragm disc brake chamber, which can effectively solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a parking chamber diaphragm positioning structure for a double-diaphragm disc brake chamber. The parking chamber diaphragm positioning structure for a double-diaphragm disc brake chamber of the utility model is convenient to use. By setting a sealing component, the hard friction between the push rod and the inner hole of the middle body is reduced, the service life of the product is increased. At the same time, the parking chamber diaphragm increases the central positioning of the release disc, reduces the damage of the release disc and the spring caused by the lack of positioning between the previous diaphragm and the release disc during the operation of the parking chamber, and increases the reliability of the product and the smoothness of the output force.

[0005] The utility model is realized through the following technical solutions:

[0006] A parking chamber diaphragm positioning structure for a double-diaphragm disc brake chamber, comprising a middle body sealing structure, a diaphragm, an aluminum release disc, a cylinder block and a release bolt;

[0007] The middle body sealing structure includes a middle body. A push rod penetrates through the middle of the middle body. One end of the push rod is riveted and connected with a first push rod disc, and the other end is riveted and connected with a second push rod disc. A groove is provided at the connection between the middle body and the push rod of the middle body, and a sealing component is arranged in the groove;

[0008] A connecting groove is annularly arranged at the bottom of the cylinder block. The top of the middle body and the bottom of the diaphragm are combined and embedded in the connecting groove. A positioning block is arranged on the diaphragm, and a positioning groove matching the positioning block is arranged on the aluminum release disc. The aluminum release disc is arranged between the diaphragm and the cylinder block, and the positioning block is embedded in the positioning groove of the aluminum release disc. The release bolt is slidably connected in the aluminum release disc and penetrates through the cylinder block.

[0009] The purpose of the present utility model is to provide a parking chamber diaphragm positioning structure for a double diaphragm disc type brake chamber. The parking chamber diaphragm positioning structure for the double diaphragm disc type brake chamber of the present utility model is convenient to use. By setting a sealing component, the hard friction between the push rod and the inner hole of the middle body is reduced, and the service life of the product is increased. At the same time, the parking chamber diaphragm increases the central positioning of the release disc, reduces the damage of the release disc and the spring caused by the lack of positioning between the previous diaphragm and the release disc during the operation of the parking chamber, and increases the reliability of the product and the smoothness of the output force.

[0010] Preferably, the sealing component includes a bushing, a sealing ring and a bushing buckle arranged in sequence from left to right.

[0011] Preferably, a clamping groove is formed on the groove, an elastic plate is arranged on the bushing buckle, and a limiting block is arranged on the elastic plate, and the limiting block is arranged in the clamping groove.

[0012] Preferably, an inclined surface is arranged in the clamping groove.

[0013] Preferably, a receiving groove is arranged on the middle body, and the first push rod disc is arranged in the receiving groove.

[0014] Compared with the prior art, the present utility model has the following advantages and beneficial effects:

[0015] The parking chamber diaphragm positioning structure for the double diaphragm disc type brake chamber of the present utility model is convenient to use. By setting a sealing component, the hard friction between the push rod and the inner hole of the middle body is reduced, and the service life of the product is increased. At the same time, the parking chamber diaphragm increases the central positioning of the release disc, reduces the damage of the release disc and the spring caused by the lack of positioning between the previous diaphragm and the release disc during the operation of the parking chamber, and increases the reliability of the product and the smoothness of the output force. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the present utility model;

[0017] Figure 2 is Figure 1 a partial enlarged structural diagram at A in DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] In order to enable those skilled in the art to better understand the technical solutions of the present utility model, the preferred implementation solutions of the present utility model will be described below in conjunction with specific embodiments. However, it should be understood that the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent; for better illustrating this embodiment, some components in the drawings will be omitted, enlarged or reduced, and do not represent the actual size of the product; for those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationships described in the drawings are only for illustrative purposes and cannot be construed as a limitation of this patent.

[0019] Example 1:

[0020] As Figures 1 to 2 shown, the present utility model provides a parking chamber diaphragm positioning structure for a double diaphragm disc brake chamber, including a middle body sealing structure, a diaphragm 410, an aluminum release disc 420, a cylinder block 430 and a release bolt 440;

[0021] The middle body sealing structure includes a middle body 310, a push rod 320 penetrates through the middle of the middle body 310, one end of the push rod 320 is riveted and connected with a first push rod disc 330, the other end is riveted and connected with a second push rod disc 340, a groove is provided at the connection part of the middle body 310 between the middle body 310 and the push rod 320, and a sealing component is provided in the groove;

[0022] A connecting groove 431 is provided in a ring shape at the bottom of the cylinder block 430, the top of the middle body 310 and the bottom of the diaphragm 410 are combined and embedded in the connecting groove 431, a positioning block 411 is provided on the diaphragm 410, a positioning groove matching with the positioning block 411 is provided on the aluminum release disc 420, the aluminum release disc 420 is arranged between the diaphragm 410 and the cylinder block 430, and the positioning block 411 is embedded in the positioning groove of the aluminum release disc 420, the release bolt 440 is slidably connected in the aluminum release disc 420, and the release bolt 440 penetrates through the cylinder block 430.

[0023] Example 2:

[0024] As Figures 1 to 2 shown, the present utility model provides a parking chamber diaphragm positioning structure for a double diaphragm disc brake chamber, including a middle body sealing structure, a diaphragm 410, an aluminum release disc 420, a cylinder block 430 and a release bolt 440;

[0025] The middle body sealing structure includes a middle body 310, a push rod 320 penetrates through the middle of the middle body 310, one end of the push rod 320 is riveted and connected with a first push rod disc 330, the other end is riveted and connected with a second push rod disc 340, a groove is provided at the connection part of the middle body 310 between the middle body 310 and the push rod 320, and a sealing component is provided in the groove;

[0026] A connecting groove 431 is provided in a ring shape at the bottom of the cylinder block 430, the top of the middle body 310 and the bottom of the diaphragm 410 are combined and embedded in the connecting groove 431, a positioning block 411 is provided on the diaphragm 410, a positioning groove matching with the positioning block 411 is provided on the aluminum release disc 420, the aluminum release disc 420 is arranged between the diaphragm 410 and the cylinder block 430, and the positioning block 411 is embedded in the positioning groove of the aluminum release disc 420, the release bolt 440 is slidably connected in the aluminum release disc 420, and the release bolt 440 penetrates through the cylinder block 430.

[0027] The sealing assembly includes a bushing 350, a sealing ring 360, and a bushing buckle 370 arranged in sequence from left to right.

[0028] Through the cooperative arrangement of the bushing 350, the sealing ring 360, and the bushing buckle 370, the hard friction between the tappet 320 and the inner hole of the middle body 310 is reduced, and the service life of the product is increased.

[0029] Further, in another embodiment, a clamping groove 380 is formed on the groove, an elastic plate 371 is provided on the bushing buckle 370, a limiting block 372 is provided on the elastic plate 371, and the limiting block 372 is arranged in the clamping groove 380.

[0030] Due to the above structure, the bushing buckle 370 can be quickly clamped with the clamping groove 380 to complete the installation.

[0031] Further, in another embodiment, an inclined surface 381 is provided in the clamping groove 380.

[0032] The provision of the inclined surface 381 facilitates the sliding of the limiting block 372 of the bushing buckle 370 into the clamping groove 380.

[0033] Further, in another embodiment, a receiving groove 311 is provided on the middle body 310, and the first tappet disc 330 is arranged in the receiving groove 311.

[0034] Based on the description and drawings of the present invention, those skilled in the art can easily manufacture or use the parking chamber diaphragm positioning structure of the present invention for a double diaphragm disc brake chamber, and can produce the positive effects recorded in the present invention.

[0035] Unless otherwise specified, in the present invention, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, the terms used to describe the orientation or positional relationship in the present invention are only for illustrative purposes and should not be construed as a limitation of this patent. For those of ordinary skill in the art, the specific meanings of the above terms can be understood by combining the drawings and according to specific circumstances.

[0036] Unless otherwise clearly defined and limited, in this utility model, if there are terms such as "set", "connected" and "coupled", they should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in this utility model can be understood according to specific situations.

[0037] The above are only the preferred embodiments of this utility model, and do not impose any form of limitation on this utility model. Any simple modification or equivalent change made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A parking chamber membrane positioning structure for a double-diaphragm disc brake chamber, characterized in that: It includes a mid-body sealing structure, a diaphragm, an aluminum release plate, a cylinder body and a release bolt; The middle body sealing structure comprises a middle body, a tappet is passed through the middle of the middle body, one end of the tappet is riveted and connected to a first tappet plate, and the other end is riveted and connected to a second tappet plate, the middle body is provided with a groove at the connection between the middle body and the tappet, and a sealing assembly is provided in the groove; The bottom ring of the cylinder body is provided with a connecting groove, the top of the middle body and the bottom of the membrane are combined and embedded in the connecting groove, the membrane is provided with a positioning block, and the aluminum release plate is provided with a positioning groove matching the positioning block. The aluminum release plate is arranged between the membrane and the cylinder body, and the positioning block is embedded in the positioning groove of the aluminum release plate, the release bolt is slidably connected in the aluminum release plate, and the release bolt passes through the cylinder body.

2. The parking chamber membrane positioning structure for a double-diaphragm disc brake chamber according to claim 1, characterized in that: The sealing assembly comprises a bushing, a sealing ring and a bushing buckle which are arranged in sequence from left to right.

3. The parking chamber membrane positioning structure for a double-diaphragm disc brake chamber according to claim 2, characterized in that: A clamping slot is provided on the groove, an elastic plate is provided on the bushing buckle, a limiting block is provided on the elastic plate, and the limiting block is arranged in the clamping slot.

4. The parking chamber membrane positioning structure for a double-diaphragm disc brake chamber according to claim 3, characterized in that: An inclined surface is arranged in the slot.

5. The parking chamber membrane positioning structure for a double-diaphragm disc brake chamber according to claim 1, characterized in that: The middle body is provided with a receiving groove, and the first tappet disc is arranged in the receiving groove.

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