CN215171719U - Sealed brake air chamber - Google Patents
Sealed brake air chamber Download PDFInfo
- Publication number
- CN215171719U CN215171719U CN202120578458.0U CN202120578458U CN215171719U CN 215171719 U CN215171719 U CN 215171719U CN 202120578458 U CN202120578458 U CN 202120578458U CN 215171719 U CN215171719 U CN 215171719U
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- air chamber
- push rod
- fixed
- cylinder body
- piston
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Abstract
The utility model belongs to the technical field of air chamber and specifically relates to sealed brake chamber. This air chamber includes air chamber cylinder body, air inlet, piston, spring, push rod, connect the fork, and sliding fit is connected with the piston in the air chamber cylinder body, and push rod one end is fixed on the piston, and the push rod other end is fixed with the connection fork, is equipped with the spring between the piston air chamber cylinder body, and air chamber cylinder body tail end is equipped with the air inlet, install the isolation cylinder on the front end plate of air chamber cylinder body, keep apart a bottom end and be the opening form, keep apart a top end and be fixed with the apron, be equipped with the perforation on the apron of isolation cylinder, be fixed with the sealing member on the apron inner wall, the body of rod of connecting the fork passes the perforation on sealing member and the apron, and the push rod top is fixed with the buffer layer. The utility model discloses a through add at the air chamber cylinder body and establish an isolation section of thick bamboo, utilize isolation section of thick bamboo and sealing member, under the condition that does not hinder push rod and connection fork removal, keep apart push rod and outside, avoid outside filth to be infected with the push rod. The utility model discloses a brake chamber's life has been improved.
Description
Technical Field
The utility model belongs to the technical field of air chamber and specifically relates to sealed brake chamber.
Background
Brake air chamberThe function of the brake is to convert the pressure of compressed air into mechanical force for rotating the brake cam shaft to realize the braking action. However, the push rod of the existing brake air chamber is easy to be polluted by external dirt when the push rod extends out of the air chamber cylinder bodyThereby shortening the service life.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defect that the push rod of the prior brake air chamber is easily contaminated, the utility model provides a sealed brake air chamber.
The utility model provides a technical scheme that its technical problem adopted is: the sealed brake air chamber comprises an air chamber cylinder body, an air inlet, a piston, a spring, a push rod and a connecting fork, wherein the piston is connected in the air chamber cylinder body in a sliding fit mode, one end of the push rod is fixed on the piston, the other end of the push rod is fixed with the connecting fork, the spring is arranged between the piston and air chamber cylinder bodies, the tail end of the air chamber cylinder body is provided with the air inlet, an isolation cylinder is installed on a front end plate of the air chamber cylinder body, the bottom end of the isolation cylinder is in an open shape, the top end of the isolation cylinder is fixed with a cover plate, a through hole is formed in the cover plate of the isolation cylinder, a sealing piece is fixed on the inner wall of the cover plate, a rod body of the connecting fork penetrates through the sealing piece and the through hole in the cover plate, and a buffer layer is fixed at the top end of the push rod.
According to the utility model discloses a further embodiment, further include the sealing member is ball bearing, and the diameter of sealing member is greater than the fenestrate diameter of apron, and the annular ring centre of a circle of sealing member is in on the same straight line with the fenestrate centre of a circle of apron.
According to the utility model discloses a further embodiment, further include be fixed with the strengthening rib between air chamber cylinder body and the isolation cylinder.
According to another embodiment of the present invention, further comprising the reinforcing rib is a triangular plate body.
According to another embodiment of the present invention, further comprising the isolation cylinder is made of metal.
According to the utility model discloses a further embodiment, the material that further includes the buffer layer is silica gel.
According to another embodiment of the present invention, further comprising a water delivery nano-layer on the outer wall of the air chamber cylinder.
According to another embodiment of the present invention, further comprising a water-transporting nano-layer on the outer wall of the isolation cylinder.
The beneficial effects of the utility model are that, this utility model through additionally establish an isolation section of thick bamboo at the air chamber cylinder body, utilize isolation section of thick bamboo and sealing member, under the condition that does not hinder push rod and connection fork removal, keep apart push rod and outside, avoid outside filth to be infected with the push rod. The utility model discloses a brake chamber's life has been improved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic structural diagram of the present invention;
in the figure, 1, an air chamber cylinder body, 2, an air inlet, 3, a piston, 4, a spring, 5, a push rod, 6, a connecting fork, 7, an isolating cylinder, 8, a sealing piece, 9, a buffer layer and 10, reinforcing ribs are arranged.
Detailed Description
Fig. 1 is the structural schematic diagram of the utility model, a sealed brake chamber, including air chamber cylinder body 1, air inlet 2, piston 3, spring 4, push rod 5, connection fork 6, sliding fit is connected with piston 3 in the air chamber cylinder body 1, and 5 one ends of push rod are fixed on piston 3, and 5 other ends of push rod are fixed with connection fork 6, are equipped with spring 4 between 3 air chamber cylinder bodies of piston 1, and 1 tail end of air chamber cylinder body is equipped with air inlet 2, install on the front end plate of air chamber cylinder body 1 and keep apart a section of thick bamboo 7, keep apart 7 bottoms and be the open form, keep apart 7 tops of a section of thick bamboo and be fixed with the apron, be equipped with the perforation on the apron of an isolation section of thick bamboo 7, be fixed with on the apron inner wall and seal 8, the body of rod of a rod of connection fork 6 passes the perforation on seal 8 and the apron, and 5 tops of push rod are fixed with buffer layer 9.
The sealing piece 8 is a ball bearing, the diameter of the sealing piece 8 is larger than that of the cover plate through hole, and the circle center of the annular hole of the sealing piece 8 and the circle center of the cover plate through hole are on the same straight line.
A reinforcing rib 10 is fixed between the air chamber cylinder body 1 and the isolation cylinder 7. The reinforcing ribs 10 are triangular plate bodies. The reinforcing ribs can improve the structural strength of the isolation cylinder 7 and the air chamber cylinder body 1.
The isolation cylinder 7 is made of metal.
The buffer layer 9 is made of silica gel. When the push rod 5 is extended and pushed against the closure 8, hard contact is avoided by the buffer layer 9.
The outer wall of the air chamber cylinder body 1 is provided with a water delivery nano layer.
The outer wall of the isolation cylinder 7 is provided with a water delivery nano-layer.
As shown in figure 1, gas enters the air chamber cylinder 1 from the gas inlet 2, the piston 3 is pushed to move by using the gas pressure, the piston 3 with the push rod 5 extends out of the air chamber cylinder 1, and the spring 4 is in a stretching state at the moment. When the air pressure is insufficient, the spring 4 retracts and drives the piston 3 to move reversely, and at the moment, the piston 3 drives the push rod 5 to retract into the air chamber cylinder body 1.
The part of the push rod 5 extending out of the air chamber cylinder body 1 moves in the inner cavity of the isolation cylinder 7, the rod body of the connecting fork 6 moves along the annular hole of the sealing piece 8 (ball bearing), and the ball on the inner wall of the annular hole is attached to the rod body, so that the connecting fork 6 and the push rod 5 are not hindered from moving under the condition of keeping the sealing as close as possible. The contact of the plunger 5 with the outside is avoided by the isolating cylinder 7, thereby preventing contamination by external contaminants.
Claims (8)
1. A sealed brake air chamber comprises an air chamber cylinder body (1), an air inlet (2), a piston (3), a spring (4), a push rod (5) and a connecting fork (6), wherein the piston (3) is connected in the air chamber cylinder body (1) in a sliding manner, one end of the push rod (5) is fixed on the piston (3), the other end of the push rod (5) is fixed with the connecting fork (6), the spring (4) is arranged between the piston (3) and the air chamber cylinder body (1), the air inlet (2) is arranged at the tail end of the air chamber cylinder body (1), and the sealed brake air chamber is characterized in that an isolation cylinder (7) is arranged on the front end plate of the air chamber cylinder body (1), the bottom end of the isolation cylinder (7) is open, a cover plate is fixed at the top end of the isolation cylinder (7), a through hole is arranged on the cover plate of the isolation cylinder (7), a sealing piece (8) is fixed on the inner wall of the cover plate, and a rod body of the connecting fork (6) passes through the sealing piece (8) and the through hole on the cover plate, a buffer layer (9) is fixed at the top end of the push rod (5).
2. A sealed brake chamber according to claim 1, characterized in that said closure (8) is a ball bearing, the diameter of the closure (8) being greater than the diameter of the hole of the cover plate, the centre of the annular hole of the closure (8) being in line with the centre of the hole of the cover plate.
3. Sealed brake chamber according to claim 1, characterized in that a reinforcement (10) is fixed between the chamber cylinder (1) and the spacer cylinder (7).
4. A sealed brake chamber according to claim 3, characterized in that said reinforcement (10) is a triangular plate.
5. Sealed brake chamber according to claim 1, characterized in that said spacer cylinder (7) is made of metal.
6. Sealed brake chamber according to claim 1, characterized in that the damping layer (9) is made of silicone.
7. The sealed brake chamber according to claim 1, wherein the outer wall of the chamber body (1) is provided with a water-transporting nano-layer.
8. Sealed brake chamber according to claim 1, characterized in that the outer wall of the insulating cylinder (7) is provided with a water-transporting nano-layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578458.0U CN215171719U (en) | 2021-03-22 | 2021-03-22 | Sealed brake air chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120578458.0U CN215171719U (en) | 2021-03-22 | 2021-03-22 | Sealed brake air chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215171719U true CN215171719U (en) | 2021-12-14 |
Family
ID=79352117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120578458.0U Active CN215171719U (en) | 2021-03-22 | 2021-03-22 | Sealed brake air chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215171719U (en) |
-
2021
- 2021-03-22 CN CN202120578458.0U patent/CN215171719U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |