CN210637408U - Piston assembly applied to clutch release main cylinder - Google Patents
Piston assembly applied to clutch release main cylinder Download PDFInfo
- Publication number
- CN210637408U CN210637408U CN201921132440.7U CN201921132440U CN210637408U CN 210637408 U CN210637408 U CN 210637408U CN 201921132440 U CN201921132440 U CN 201921132440U CN 210637408 U CN210637408 U CN 210637408U
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- Prior art keywords
- valve
- hole
- truncated cone
- piston assembly
- cone column
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- Expired - Fee Related
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- 239000011324 bead Substances 0.000 claims 4
- 238000004519 manufacturing process Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 7
- 230000008901 benefit Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 208000002991 Ring chromosome 4 syndrome Diseases 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000013040 rubber vulcanization Methods 0.000 description 1
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- Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
Abstract
The utility model discloses a piston component applied to a clutch separation main cylinder, which comprises a piston, a valve rod, a valve and a valve spring, wherein the piston is provided with a front cavity and a rear cavity, and the front cavity and the rear cavity can be communicated through a through hole positioned between the front cavity and the rear cavity; the valve rod is matched with the through hole, one end of the valve rod extends into the rear cavity, and the other end of the valve rod is provided with a clamping head; the valve is arranged on the chuck in a wrapping mode and is positioned in the front cavity; a valve spring is disposed between the valve and the front chamber. Due to the adoption of the structure, the utility model has the advantages of low production cost and good sealing effect.
Description
Technical Field
The utility model relates to an accessory technical field of clutch, concretely relates to be applied to piston assembly of clutch release main cylinder.
Background
The clutch is arranged between the clutch pedal and the clutch separating cylinder, and the piston assembly arranged in the existing clutch separating main cylinder has large development difficulty and high cost due to the complexity of a piston processing procedure and the complexity of structural design, and is difficult to separate if the rubber deformation in the piston assembly is small; if the deformation of the rubber in the piston assembly is large, the control is difficult, so that the quality of the piston assembly is difficult to control, and in addition, after the parts are assembled, the characteristic parameters are unstable, the piston assembly is not durable enough, and the service life is short.
As shown in fig. 1, the piston assembly of the conventional clutch release master cylinder includes a piston e, a limit cover a disposed at one end of the piston e, a valve rod d engaged with the piston e, a valve c disposed at one end of the valve rod d, and a valve spring b disposed between the valve rod d and the limit cover a, wherein the limit cover a is a stamping part, which is expensive in mold opening, complex in processing process, and not easy to assemble; the valve c is a vulcanized piece, the production cost is high, and the end of the valve rod d is not completely wrapped by the valve c, so that the sealing performance of the piston assembly is influenced.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, the present invention is directed to a piston assembly for a clutch release main cylinder, which has low production cost and good sealing performance.
The purpose of the utility model is realized with the following mode:
a piston assembly for use with a clutch release master cylinder, comprising:
the piston is provided with a front cavity and a rear cavity, and a through hole positioned between the front cavity and the rear cavity can communicate the front cavity with the rear cavity;
the valve rod is matched with the through hole, one end of the valve rod extends into the rear cavity, and the other end of the valve rod is provided with a clamping head;
the valve is manufactured by vulcanizing rubber, the clamping head is coated with the valve, and the valve is positioned in the front cavity;
a valve spring disposed between the valve and the front chamber.
Furthermore, the clamping head is provided with a clamping column, one end of the clamping column is provided with a first clamping plate, the other end of the clamping column is provided with a second clamping plate, the first clamping plate is located in a first hole in the valve, the clamping column is located in a second hole in the valve, and the second clamping plate is located in a third hole in the valve.
Further, the valve is including consecutive first round platform post, second round platform post and third round platform post, the first hole is seted up on the main aspects of first round platform post, just the main aspects of first round platform post can support and keep out on the diapire of preceding cavity, the tip of second round platform post with the tip of first round platform post links to each other, the main aspects of second round platform post with the main aspects of third round platform post link to each other, the second hole runs through second round platform post, just the second hole stretches into in the first round platform post, the third hole is seted up on the main aspects of third round platform post.
Furthermore, an annular shoulder surface is formed at the joint of the small end surface of the second circular truncated cone column piece and the small end surface of the first circular truncated cone column piece, and one end of the valve spring abuts against the annular shoulder surface.
Furthermore, an annular convex ring is arranged on the outer edge of the large end face of the first round table column piece and can be abutted against the bottom wall of the front cavity.
Furthermore, the cross section of the annular convex ring is semicircular, and the top of the annular convex ring can be abutted against the bottom wall of the front cavity.
Furthermore, a convex column is arranged on the small end face of the third round table column piece.
Still further, the valve further comprises a hole retainer ring, the hole retainer ring is embedded in an annular groove on the side wall of the front cavity chamber, and the other end of the valve spring abuts against the hole retainer ring.
The utility model has the advantages that:
1. because the clamping head of the valve rod is completely wrapped by the valve, the sealing performance between the valve and the valve rod is good, and the brake fluid is prevented from leaking;
2. because the hole retainer ring and the valve spring in the utility model are common parts, the production is easy; moreover, the utility model provides a valve, valve rod and piston manufacturing process are simple reliable, therefore have reduced the utility model discloses a manufacturing cost has produced higher economic benefits.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts. In the drawings:
FIG. 1 is a schematic structural view of a conventional piston assembly applied to a clutch release master cylinder;
fig. 2 is a schematic structural diagram of the present invention;
FIG. 3 is a schematic structural view of the valve stem of the present invention;
fig. 4 is a schematic structural diagram of the valve of the present invention.
The notation in the figure is: the valve comprises a piston-1, a front cavity-11, an annular groove-111, a rear cavity-12, a through hole-13, a valve rod-2, a clamping head-21, a clamping column-211, a first clamping plate-212, a second clamping plate-213, a valve-3, a first hole-31, a second hole-32, a third hole-33, a first round table column-34, a second round table column-35, a third round table column-36, an annular shoulder surface-37, an annular convex ring-38, a convex column-39, a hole retainer ring-4 and a valve spring-5.
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.
Referring to fig. 2 to 4, a piston assembly applied to a clutch release master cylinder as shown in fig. 2 includes a piston 1, a valve rod 2, a valve 3 and a valve spring 5, the piston 1 has a front chamber 11 and a rear chamber 12, a through hole 13 located between the front chamber 11 and the rear chamber 12 can communicate the front chamber 11 with the rear chamber 12, an annular groove 111 is formed on a side wall of the front chamber 11, the valve rod 2 is matched with the through hole 13, one end of the valve rod 2 extends into the rear chamber 12, the other end of the valve rod 2 is provided with a chuck 21, the valve 3 is manufactured by rubber vulcanization, the valve 3 is covered on the chuck 21, the valve 3 is located in the front chamber 11, the valve spring 5 is disposed between the valve 3 and the front chamber 11, and the chuck 21 is completely covered by the valve 3, thus, the sealing performance between the dop 21 and the valve 3 is improved, and the leakage of the brake fluid can be prevented.
In this embodiment, the hole retaining ring 4 and the valve spring 5 are common parts, and the production is easy, and the manufacturing process of the valve 3, the valve rod 2 and the piston 1 is simple and reliable, thereby reducing the manufacturing cost of the utility model discloses a higher economic benefits has been produced.
As shown in fig. 2, 3 and 4, a small end of the tapered rod 21 extends into the rear chamber 12, a chuck 21 is disposed at a large end of the tapered rod 21, the chuck 21 is connected to the valve 3 in a snap-fit manner, the chuck 21 has a clamping column 211, a first clamping plate 212 is disposed at one end of the clamping column 211, a second clamping plate 213 is disposed at the other end of the clamping column 211, the second clamping plate 213 is connected to the large end of the tapered rod 21, the first clamping plate 212 is disposed in the first hole 31 of the valve 3, the clamping column 211 is disposed in the second hole 32 of the valve 3, and the second clamping plate 213 is disposed in the third hole 33 of the valve 3.
As shown in fig. 2 and 4, the valve 3 includes a first circular truncated cone column 34, a second circular truncated cone column 35, and a third circular truncated cone column 36 connected in sequence, the first hole 31 is opened at a large end of the first circular truncated cone column 34, and the large end of the first circular truncated cone column 34 can be abutted against the bottom wall of the front chamber 11, a small end of the second circular truncated cone column 35 is connected with a small end of the first circular truncated cone column 34, a large end of the second circular truncated cone column 35 is connected with a large end of the third circular truncated cone column 36, the second hole 32 penetrates through the second circular truncated cone column 35, and the second hole 32 extends into the first circular truncated cone column 34, the third hole 33 is opened at a large end of the third circular truncated cone column 36, a small end of the third circular truncated cone column 36 is provided with a convex column 39, a connection point of the small end of the second circular truncated cone column 35 and the small end of the first circular truncated cone column 34 forms an annular shoulder 37, one end of the valve spring 5 abuts against the annular shoulder surface 37, the other end of the valve spring 5 abuts against the hole retainer ring 4 located in the annular groove 111, an annular convex ring 38 is arranged on the outer edge of the large end surface of the first circular truncated cone column member 34, the annular convex ring 38 can abut against the bottom wall of the front chamber 11, the cross section of the annular convex ring 38 is semicircular, and the top of the annular convex ring 38 can abut against the bottom wall of the front chamber 11, so that when the valve 3 is in a closed state, the top of the annular convex ring 38 can tightly abut against the bottom wall of the front chamber 11 under the action of the valve spring 5, the sealing performance between the valve 3 and the piston 1 is improved, and when the valve 3 is closed, brake fluid can be prevented from leaking.
In conclusion, the piston assembly applied to the clutch release main cylinder is convenient to machine, low in cost and good in sealing performance, and therefore the piston assembly is suitable for wide popularization and application.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A piston assembly for a clutch release master cylinder, comprising:
a piston (1), said piston (1) having a front chamber (11) and a rear chamber (12), a through hole (13) between said front chamber (11) and said rear chamber (12) being adapted to communicate said front chamber (11) with said rear chamber (12);
the valve rod (2) is matched with the through hole (13), one end of the valve rod (2) extends into the rear cavity (12), and the other end of the valve rod (2) is provided with a clamping head (21);
the valve (3) is prepared by vulcanizing rubber, the valve (3) is coated on the clamping head (21), and the valve (3) is positioned in the front cavity (11);
a valve spring (5), the valve spring (5) being disposed between the valve (3) and the front chamber (11).
2. The piston assembly as claimed in claim 1, wherein the cartridge (21) has a locking post (211), one end of the locking post (211) is provided with a first locking plate (212), the other end of the locking post (211) is provided with a second locking plate (213), the first locking plate (212) is located in the first hole (31) of the valve (3), the locking post (211) is located in the second hole (32) of the valve (3), and the second locking plate (213) is located in the third hole (33) of the valve (3).
3. The piston assembly for a clutch release master cylinder according to claim 2, the valve (3) comprises a first circular truncated cone column piece (34), a second circular truncated cone column piece (35) and a third circular truncated cone column piece (36) which are connected in sequence, the first hole (31) is formed in the large end of the first circular truncated cone column (34), and the large end of the first truncated cone column (34) can be abutted against the bottom wall of the front chamber (11), the small end of the second truncated cone column (35) is connected with the small end of the first truncated cone column (34), the big end of the second round table column piece (35) is connected with the big end of the third round table column piece (36), the second hole (32) penetrates through the second round table column piece (35), and the second hole (32) extends into the first circular truncated cone column piece (34), and the third hole (33) is formed in the large end face of the third circular truncated cone column piece (36).
4. The piston assembly as claimed in claim 3, wherein the junction of the small end face of the second frustoconical member (35) and the small end face of the first frustoconical member (34) forms an annular shoulder surface (37), and one end of the valve spring (5) abuts against the annular shoulder surface (37).
5. Piston assembly for a clutch master cylinder according to claim 3, characterized in that said first frustoconical member (34) has an annular bead (38) on the outer edge of its large end face, said annular bead (38) being able to abut against the bottom wall of said front chamber (11).
6. Piston assembly for a clutch master cylinder according to claim 5, characterized in that said annular bead (38) has a semicircular cross-section, the top of said annular bead (38) being able to abut against the bottom wall of said front chamber (11).
7. The piston assembly applied to the clutch release master cylinder according to claim 3, wherein a boss (39) is provided on a small end surface of the third circular truncated cone column (36).
8. Piston assembly for a clutch master cylinder according to claim 4, characterized in that it further comprises a hole collar (4), said hole collar (4) being embedded in an annular groove (111) located on the side wall of said front chamber (11), and the other end of said valve spring (5) being in abutment against said hole collar (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132440.7U CN210637408U (en) | 2019-07-18 | 2019-07-18 | Piston assembly applied to clutch release main cylinder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921132440.7U CN210637408U (en) | 2019-07-18 | 2019-07-18 | Piston assembly applied to clutch release main cylinder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210637408U true CN210637408U (en) | 2020-05-29 |
Family
ID=70798231
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921132440.7U Expired - Fee Related CN210637408U (en) | 2019-07-18 | 2019-07-18 | Piston assembly applied to clutch release main cylinder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210637408U (en) |
-
2019
- 2019-07-18 CN CN201921132440.7U patent/CN210637408U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200529 |
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| CF01 | Termination of patent right due to non-payment of annual fee |