CN211343834U - Shock absorber structure for trailer connector - Google Patents
Shock absorber structure for trailer connector Download PDFInfo
- Publication number
- CN211343834U CN211343834U CN201921470690.1U CN201921470690U CN211343834U CN 211343834 U CN211343834 U CN 211343834U CN 201921470690 U CN201921470690 U CN 201921470690U CN 211343834 U CN211343834 U CN 211343834U
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- cylinder body
- cavity
- piston assembly
- inner cavity
- assembly
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Abstract
The utility model discloses a bumper shock absorber structure for trailer connector. A piston assembly is arranged in the inner cavity of the cylinder body, a push rod extends into the inner cavity of the cylinder body and is connected with the piston assembly, a tailstock assembly is sleeved at one end of the push rod extending into the inner cavity of the cylinder body, and the tailstock assembly is arranged on the inner wall of the inner cavity of the cylinder body; the front cavity and the rear cavity are separated by the sealing ring to form a front cavity and a rear cavity, the front cavity and the rear cavity are filled with liquid media, the end face of the piston assembly is provided with a threaded hole, the end part of the push rod is arranged in the threaded hole, the piston assembly is provided with a small hole communicated with the threaded hole, the push rod is provided with an internal channel, the internal channel is communicated with the threaded hole and the front cavity, and a damping channel connected with the front cavity and the rear cavity is formed by the small. The utility model uses the mixed liquid of the brake fluid and other liquid, thus reducing the cost of the liquid medium; increase the bumper shock absorber simultaneously in the trailer connector, reduce the rigid collision of motion in-process trailer and tractor, improve the life of trailer.
Description
Technical Field
The utility model relates to a part in the trailer connector has especially related to a shock absorber structure for trailer connector.
Background
In current trailer, use rigid connection more and link to each other with the tractor, during the use, tractor braking in-process trailer has very big impulsive force to the connector, leads to the connector easily impaired, and life is short.
SUMMERY OF THE UTILITY MODEL
The novel trailer connector aims at the problems that the existing trailer connector is large in impact force of a trailer in use, easy to damage and short in service life. The utility model provides a trailer is bumper shock absorber structure for connector.
The utility model discloses a following technical scheme can solve:
the utility model comprises a cylinder body, a piston assembly, a push rod, a liquid medium, a hole elastic retainer ring and a tailstock assembly; the piston assembly is arranged in the inner cavity of the cylinder body, the peripheral surface of the piston assembly is in sealed connection with the inner wall of the inner cavity of the cylinder body through a sealing ring, the push rod extends into the inner cavity of the cylinder body and is connected with the piston assembly, the end, extending into the inner cavity of the cylinder body, of the push rod is sleeved with the tailstock assembly, the peripheral surface of the tailstock assembly is in sealed connection with the inner wall of the inner cavity of the cylinder body, and the tailstock assembly is axially and fixedly arranged on the inner wall of the; the piston assembly is characterized in that the piston assembly is divided by a sealing ring, the space of a cylinder inner cavity between the bottom of the cylinder inner cavity and the sealing ring of the piston assembly is used as a rear cavity, the space of the cylinder inner cavity between the tailstock assembly and the sealing ring of the piston assembly is used as a front cavity, the front cavity and the rear cavity are filled with liquid media, a threaded hole is formed in the end face of the piston assembly far away from the bottom of the cylinder inner cavity, the end part of a push rod is connected into the threaded hole of the piston assembly through threaded connection, a small hole communicated with the threaded hole is formed in the center of the end face of the piston assembly close to the bottom of the cylinder inner cavity, an internal channel is formed in the end part of the push rod connected with the piston assembly, the internal channel is.
The inner wall of the cylinder inner cavity near the two ends of the tailstock assembly is provided with two annular retainer ring grooves, elastic retainer rings for holes are arranged in the retainer ring grooves, and the tailstock assembly is limited between the two elastic retainer rings for holes.
The liquid medium is formed by mixing castor oil and DOT3 brake fluid.
The bottom of the inner cavity of the cylinder body is provided with a through hole, and a copper plug is arranged in the through hole for sealing.
The diameter of the small hole formed in the piston assembly is smaller than 1 mm.
The utility model has the advantages that:
in the utility model, the mixed liquid of the brake fluid and other liquids is used, so that the cost of the liquid medium is reduced; increase the bumper shock absorber simultaneously in the trailer connector, reduce the impact force in the motion process, reduce the rigid collision of trailer in the motion process and tractor, improve the life of trailer connector.
Drawings
Fig. 1 is a schematic structural view of a shock absorber for a trailer connector according to the present invention;
fig. 2(a) is a perspective view of the piston assembly 3;
FIG. 2(b) is a sectional view of the piston assembly 3;
FIG. 3(a) is a perspective view of the piston assembly 3 and the push rod 4 after assembly;
fig. 3(b) is a sectional view of the piston assembly 3 and the push rod 4 after assembly.
In the figure: 1. the piston assembly comprises a copper plug, 2, a cylinder body, 3, a piston assembly, 4, a push rod, 5, a circlip for a hole, 6, a tailstock assembly, a sealing ring, b, a damping channel, 7, a front cavity, 8, a rear cavity, 9 and a liquid medium.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, the device comprises a cylinder 2, a piston assembly 3, a push rod 4, a liquid medium 9, a circlip for hole 5 and a tailstock assembly 6; piston assembly 3 is installed to 2 inner chambers of cylinder body, and piston assembly 3 outer peripheral face passes through sealing washer a and 2 inner chamber inner walls of cylinder body sealing connection, and push rod 4 stretches into 2 inner chambers of cylinder body and is connected with piston assembly 3, and the cover is equipped with tailstock assembly 6 on the one end that push rod 4 stretches into 2 inner chambers of cylinder body, and tailstock assembly 6 outer peripheral face passes through another sealing washer and 2 inner chamber inner walls of cylinder body sealing connection, and tailstock assembly 6 is installed in 2 inner chamber inner walls of cylinder body with circlip 5 axial fixity through the hole.
As shown in FIGS. 2(a) and 2(b) and FIGS. 3(a) and 3(b), the space of the inner cavity of the cylinder body 2 between the bottom of the inner cavity of the cylinder body 2 and the sealing ring a of the piston assembly 3 is used as a rear cavity 8, the space of the inner cavity of the cylinder body 2 between the tailstock assembly 6 and the sealing ring a of the piston assembly 3 is used as a front cavity 7, the front cavity 7 and the rear cavity 8 form a damping cavity, the front cavity 7 and the rear cavity 8 are both filled with liquid media 9, the end surface of the piston assembly 3 far away from the bottom of the inner cavity of the cylinder body 2 is provided with a threaded hole, the end part of the push rod 4 is connected into the threaded hole of the piston assembly 3 through threads, the piston assembly 3 is provided with a small hole communicated with the threaded hole at the center of the end surface close to the bottom of the inner cavity of the cylinder body 2, the push rod 4 is provided with an internal channel at the end part connected with the piston assembly 3, the internal channel is communicated with the threaded hole and the front cavity 7, and a damping channel b connected with the front cavity and the rear cavity is formed by the small hole and the internal channel.
Two annular retainer ring grooves are formed in the inner wall of the inner cavity of the cylinder body 2 near the two ends of the tailstock assembly 6, elastic retainer rings 5 for holes are mounted in the retainer ring grooves, and the tailstock assembly 6 is limited between the two elastic retainer rings 5 for holes.
In specific implementation, the liquid medium is formed by mixing castor oil and DOT3 brake fluid, and the mixing ratio is 1: 1.
In specific implementation, a through hole is formed in the bottom of an inner cavity of the cylinder body 2, and a copper plug 1 is installed in the through hole for sealing.
The diameter of the small hole formed in the piston assembly 3 is smaller than 1mm, so that when the piston assembly 3 moves towards the bottom of the cylinder body 2, the liquid flow has small liquidity, and the piston assembly 3 has certain resistance to move, but still has liquidity.
During assembly, the piston assembly 3 and the push rod 4 are connected together, the tailstock is sleeved in the push rod 4, the hole elastic check ring 5 is arranged in the check ring groove of the cylinder body 2, and the tailstock is fixed between the two hole elastic check rings 5; the piston assembly 3 is pushed to a designated position in the cylinder body 2, then liquid medium is filled into the cavity through a hole at the bottom of the cylinder body 2, the front cavity and the rear cavity are filled with the liquid medium, and finally the bottom of the cylinder body 2 is sealed by a copper plug 1.
Therefore, the utility model discloses, under the prerequisite of guaranteeing trailer connector performance, reduced liquid medium's cost, improved trailer connector's life.
The above detailed description is provided for illustrative purposes, and is not intended to limit the present invention, and any modifications and variations of the present invention are within the spirit and scope of the following claims.
Claims (4)
1. The utility model provides a trailer is bumper shock absorber structure for connector which characterized in that: comprises a cylinder body (2), a piston assembly (3), a push rod (4), a liquid medium (9), an elastic check ring for holes (5) and a tailstock assembly (6); the piston assembly (3) is installed in the inner cavity of the cylinder body (2), the peripheral surface of the piston assembly (3) is in sealing connection with the inner wall of the inner cavity of the cylinder body (2) through a sealing ring (a), the push rod (4) extends into the inner cavity of the cylinder body (2) and is connected with the piston assembly (3), a tailstock assembly (6) is sleeved at one end, extending into the inner cavity of the cylinder body (2), of the push rod (4), the peripheral surface of the tailstock assembly (6) is in sealing connection with the inner wall of the inner cavity of the cylinder body (2), and the tailstock assembly (6) is axially and fixedly installed on the inner wall of the inner cavity of the cylinder body (2) through; separated by a sealing ring (a), the inner cavity space of the cylinder body (2) between the bottom of the inner cavity of the cylinder body (2) and the sealing ring (a) of a piston assembly (3) is taken as a rear cavity (8), the inner cavity space of the cylinder body (2) between a tailstock assembly (6) and the sealing ring (a) of the piston assembly (3) is taken as a front cavity (7), the front cavity (7) and the rear cavity (8) are filled with liquid media (9), a threaded hole is formed in the end face of the piston assembly (3) far away from the bottom of the inner cavity of the cylinder body (2), the end part of a push rod (4) is connected into the threaded hole of the piston assembly (3) through threads, the piston assembly (3) is provided with a small hole communicated with the threaded hole at the center of the end face close to the bottom of the inner cavity of the cylinder body (2), the push rod (4) is provided with an internal channel at the end part connected with the piston assembly (3), the internal channel is communicated with the threaded hole and the front cavity (7), and a damping channel (b) connected with the front cavity and the rear cavity is formed by the small hole and the internal channel.
2. The shock absorber structure for a trailer connector according to claim 1, wherein:
the inner wall of the inner cavity of the cylinder body (2) near the two ends of the tailstock assembly (6) is provided with two annular retainer ring grooves, elastic retainer rings (5) for holes are all arranged in the retainer ring grooves, and the tailstock assembly (6) is limited between the elastic retainer rings (5) for two holes.
3. The shock absorber structure for a trailer connector according to claim 1, wherein:
the bottom of the inner cavity of the cylinder body (2) is provided with a through hole, and a copper plug (1) is arranged in the through hole for sealing.
4. The shock absorber structure for a trailer connector according to claim 1, wherein:
the diameter of a small hole formed in the piston assembly (3) is smaller than 1 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470690.1U CN211343834U (en) | 2019-09-05 | 2019-09-05 | Shock absorber structure for trailer connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921470690.1U CN211343834U (en) | 2019-09-05 | 2019-09-05 | Shock absorber structure for trailer connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211343834U true CN211343834U (en) | 2020-08-25 |
Family
ID=72105082
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921470690.1U Active CN211343834U (en) | 2019-09-05 | 2019-09-05 | Shock absorber structure for trailer connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211343834U (en) |
-
2019
- 2019-09-05 CN CN201921470690.1U patent/CN211343834U/en active Active
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