CN214367369U - Automobile clutch master cylinder - Google Patents
Automobile clutch master cylinder Download PDFInfo
- Publication number
- CN214367369U CN214367369U CN202120257388.9U CN202120257388U CN214367369U CN 214367369 U CN214367369 U CN 214367369U CN 202120257388 U CN202120257388 U CN 202120257388U CN 214367369 U CN214367369 U CN 214367369U
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- pump body
- positioning pin
- piston
- master cylinder
- ring
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Abstract
The utility model discloses an automobile clutch master cylinder, which comprises a pump body, wherein the rear end surface of the pump body is provided with an outer cover, the inner side surface of the outer cover is provided with a push rod, the outer end surface of the push rod is fixed with a piston, the front end inner side surface of the pump body is provided with a piston oil inlet valve, the lower end inner side surface of the pump body is provided with a through hole which is inserted with a positioning pin, the upper end of the positioning pin is provided with a threaded column, the threaded column is connected with the inner side surface of the pump body, the lower end outer surface of the positioning pin is provided with a convex ring platform, the convex ring platform is clamped into a preset groove at the lower end of the pump body, the inner side surface of the lower end of the pump body is provided with an annular cavity, a pressure spring is placed in the annular cavity, the pressure spring downwards extrudes the positioning pin, the piston oil inlet valve is positioned by arranging a positioning pin component, and the positioning pin is downwards pressed by the pressure spring, so that the tightness is improved and the slide wire is not easy to twist, and a double-sealing mechanism is adopted to seal the piston, so that the sealing performance is improved.
Description
Technical Field
The utility model relates to a clutch master cylinder field, more specifically say, relate to an automobile clutch master cylinder.
Background
The clutch master cylinder is a part which is connected with a clutch pedal and is connected with a clutch booster through an oil pipe, and is used for acquiring pedal stroke information and separating the clutch under the action of the booster;
in the clutch master cylinder in the prior art, the piston oil inlet valve is positioned through the limit screw, the limit screw in the prior art is single in structure, the piston is easy to loosen and slide after being installed, the piston is sealed by a single sealing ring, and the sealing performance of the piston is still to be improved.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide an automobile clutch master cylinder, through setting up the locating pin subassembly to piston inlet valve location, and compress tightly the locating pin downwards through the pressure spring, improves the fastening, is difficult for twising reverse the smooth silk to adopt double seal mechanism to seal the piston, improve sealing performance.
In order to solve the above problems, the utility model adopts the following technical proposal.
A master cylinder of an automobile clutch comprises a pump body, wherein an outer cover is arranged on the rear end surface of the pump body, a push rod is arranged on the inner side surface of the outer cover, a piston is fixed on the outer end surface of the push rod, a piston oil inlet valve is arranged on the inner side surface of the front end of the pump body, a through hole is formed in the inner side surface of the lower end of the pump body, a positioning pin is inserted in the through hole, a threaded column is arranged at the upper end of the positioning pin and connected to the inner side surface of the pump body, a convex ring table is arranged on the outer surface of the lower end of the positioning pin and clamped in a preset groove at the lower end of the pump body, a ring cavity is formed in the inner side surface of the lower end of the pump body, a pressure spring is placed in the ring cavity and extrudes the positioning pin downwards, a ring groove is formed in the outer surface of the piston, a rubber sealing ring is clamped in the ring groove, a ring groove is formed in the front side of the rubber sealing ring, a hollow rubber ring is placed in the groove, the piston oil inlet valve is positioned by arranging the positioning pin assembly, the positioning pin is downwards compressed by the pressure spring, the tightness is improved, the sliding wire is not easy to twist, and the sealing performance is improved by sealing the piston by adopting a double sealing mechanism.
Furthermore, the outer surface of the rear end of the piston is provided with a ring groove which is clamped with a rubber sealing ring, so that the sealing performance is improved.
Furthermore, the outer surface of the rubber sealing ring is provided with annular grooves, so that the attaching performance with the inner wall of the pump body is improved, and the sealing performance is improved.
Furthermore, the lower extreme surface of locating pin is provided with the hexagonal recess, and the hexagonal spanner card of being convenient for twists the locating pin installation and dismantlement in entering the hexagonal recess.
Furthermore, the outer surface of the lower end of the positioning pin is sleeved with a rubber pad, so that the sealing performance after locking is improved.
Compared with the prior art, the utility model has the advantages of:
(1) the piston oil inlet valve is positioned by arranging the positioning pin assembly, the positioning pin is downwards compressed by the pressure spring, the tightness is improved, the sliding wire is not easy to twist, and the sealing performance is improved by sealing the piston by adopting a double sealing mechanism.
(2) The outer surface of the rear end of the piston is provided with a ring groove which is clamped with a rubber sealing ring, so that the sealing performance is improved.
(3) The outer surface of the rubber sealing ring is provided with annular grooves, so that the attaching performance with the inner wall of the pump body is improved, and the sealing performance is improved.
(4) The lower extreme surface of locating pin is provided with the hexagonal recess, and the hexagonal spanner card of being convenient for twists the locating pin installation and dismantlement in going into the hexagonal recess.
(5) The outer surface of the lower end of the positioning pin is sleeved with a rubber pad, so that the sealing performance after locking is improved.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is an enlarged view of the point A of the present invention;
FIG. 3 is a cross-sectional view of the rubber sealing ring of the present invention;
fig. 4 is a schematic view of the rubber sealing ring of the present invention.
The reference numbers in the figures illustrate:
the pump comprises a pump body 1, an outer cover 2, a push rod 3, a piston 4, a piston oil inlet valve 5, a positioning pin 6, a convex ring table 60, an annular cavity 7, a pressure spring 8, a rubber sealing ring 40, a hollow rubber ring 41, a rubber sealing ring 42, a hexagonal groove 61 and a rubber gasket 600.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, an automobile clutch master cylinder comprises a pump body 1, an outer cover 2 is disposed on the rear end surface of the pump body 1, a push rod 3 is disposed on the inner side surface of the outer cover 2, a piston 4 is fixed on the outer end surface of the push rod 3, a piston oil inlet valve 5 is disposed on the inner side surface of the front end of the pump body 1, a through hole is formed on the inner side surface of the lower end of the pump body 1, a positioning pin 6 is inserted into the through hole, a threaded post is disposed on the upper end of the positioning pin 6 and connected to the inner side surface of the pump body 1, a convex ring platform 60 is disposed on the outer surface of the lower end of the positioning pin 6, the convex ring platform 60 is clamped into a preset groove at the lower end of the pump body 1, an annular cavity 7 is formed on the inner side surface of the lower end of the pump body 1, a pressure spring 8 is disposed in the annular cavity 7, the pressure spring 8 downwardly extrudes the positioning pin 6, an annular groove is formed on the outer surface of the piston 4, a rubber sealing ring 40 is clamped into the annular groove, an annular groove is formed on the front side of the rubber sealing ring 40, a hollow rubber ring 41 is placed in the annular groove.
Referring to fig. 1-4, the outer surface of the rear end of the piston 4 is provided with a ring groove to clamp the rubber sealing ring 42, so that the sealing performance is improved, the outer surface of the rubber sealing ring 40 is provided with ring grooves to increase the fitting performance with the inner wall of the pump body 1 and increase the sealing performance, the lower end surface of the positioning pin 6 is provided with a hexagonal groove 61, so that an internal hexagonal wrench can be conveniently clamped into the hexagonal groove 61 to twist the positioning pin 6 for installation and disassembly, the outer surface of the lower end of the positioning pin 6 is sleeved with a rubber pad 600, so that the sealing performance after locking is improved.
When the positioning pin is used, the positioning pin 6 is inserted through the insertion hole formed in the inner side surface of the lower end of the pump body 1, the threaded column is arranged at the upper end of the positioning pin 6 and connected to the inner side surface of the pump body 1, the convex ring table 60 is arranged on the outer surface of the lower end of the positioning pin 6, the convex ring table 60 is clamped into the preset groove formed in the lower end of the pump body 1, the annular cavity 7 is formed in the inner side surface of the lower end of the pump body 1, the pressure spring 8 is placed in the annular cavity 7, the positioning pin 6 is downwards extruded by the pressure spring 8, the pressure spring 8 can be compressed after the positioning pin 6 is screwed tightly, the positioning pin 6 is reversely extruded by the pressure spring 9, and the positioning pin 6 is not easy to rotate and loosen;
the ring channel is seted up to the surface of piston 4, the joint has rubber seal ring 40 in its ring channel, rubber seal ring 40 front side is opened and is equipped with the annular groove, hollow rubber circle 41 has been placed in its annular groove, increase elasticity, 1 inner wall of the laminating pump body is inseparable, the ring groove joint is seted up to the rear end surface of piston 4 has rubber seal 42, improve sealing performance, rubber seal ring 40's surface is provided with annular groove, the laminating nature of increase and 1 inner wall of the pump body, increase leakproofness.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. The utility model provides an automobile clutch master cylinder, includes pump body (1), its characterized in that: the rear end surface of the pump body (1) is provided with an outer cover (2), the inner side surface of the outer cover (2) is provided with a push rod (3), the outer end surface of the push rod (3) is fixed with a piston (4), the front end inner side surface of the pump body (1) is provided with a piston oil inlet valve (5), the lower end inner side surface of the pump body (1) is provided with a through hole in which a positioning pin (6) is inserted, the upper end of the positioning pin (6) is provided with a threaded column which is connected with the inner side surface of the pump body (1), the lower end outer surface of the positioning pin (6) is provided with a convex ring platform (60), the convex ring platform (60) is clamped into a preset groove at the lower end of the pump body (1), the lower end inner side surface of the pump body (1) is provided with a ring cavity (7), a pressure spring (8) is placed in the ring cavity (7), and the pressure spring (8) downwardly extrudes the positioning pin (6), the outer surface of the piston (4) is provided with an annular groove, a rubber sealing ring (40) is clamped in the annular groove, an annular groove is formed in the front side of the rubber sealing ring (40), and a hollow rubber ring (41) is placed in the annular groove.
2. The automobile clutch master cylinder as claimed in claim 1, characterized in that: the outer surface of the rear end of the piston (4) is provided with an annular groove, and a rubber sealing ring (42) is clamped and connected.
3. The automobile clutch master cylinder as claimed in claim 1, characterized in that: the outer surface of the rubber sealing ring (40) is provided with annular grooves.
4. The automobile clutch master cylinder as claimed in claim 1, characterized in that: the lower end surface of the positioning pin (6) is provided with a hexagonal groove (61).
5. The automobile clutch master cylinder as claimed in claim 1, characterized in that: and the outer surface of the lower end of the positioning pin (6) is sleeved with a rubber pad (600).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120257388.9U CN214367369U (en) | 2021-01-29 | 2021-01-29 | Automobile clutch master cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120257388.9U CN214367369U (en) | 2021-01-29 | 2021-01-29 | Automobile clutch master cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214367369U true CN214367369U (en) | 2021-10-08 |
Family
ID=77961052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120257388.9U Active CN214367369U (en) | 2021-01-29 | 2021-01-29 | Automobile clutch master cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214367369U (en) |
-
2021
- 2021-01-29 CN CN202120257388.9U patent/CN214367369U/en active Active
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