CN212055922U

CN212055922U - Hydraulic pipeline air release valve

Info

Publication number: CN212055922U
Application number: CN202020516783.XU
Authority: CN
Inventors: 陈炳顺; 黄顺平; 陈建峰
Original assignee: Hangzhou Deben Technology Development Co ltd
Current assignee: Hangzhou Deben Technology Development Co ltd
Priority date: 2020-04-10
Filing date: 2020-04-10
Publication date: 2020-12-01
Anticipated expiration: 2030-04-10

Abstract

The utility model discloses a hydraulic pressure pipeline bleed valve belongs to clutch technical field, and aim at overcomes current bleed valve and needs two sealing members to improve the leakproofness and lead to the great defect of cost. The air release valve comprises a connector shell and an air release valve body, wherein a valve cavity and an air release hole are formed in the connector shell, the air release valve body is provided with a valve core, the valve core is embedded in the valve cavity, a sealing ring is arranged between the connector shell and the air release valve body, the sealing ring is sleeved on the valve core and divides the valve core into a non-passage area and a passage area, and when the air release valve body is rotated, the air release hole can be switched between two states of the corresponding non-passage area and the corresponding passage area; the joint shell is provided with an oil inlet channel, and the sealing ring blocks the oil inlet channel from being communicated with the outside when the air vent corresponds to a non-access area; when the air release hole corresponds to the passage area, the oil inlet channel is communicated with the outside. The utility model provides a hydraulic pressure pipeline bleed valve just can reduce the influence of temperature variation to the leakproofness through single simple and easy sealing washer, simple structure, low cost, manufacturing convenience.

Description

Hydraulic pipeline air release valve

Technical Field

The utility model belongs to the technical field of the clutch, a hydraulic pressure pipeline bleed valve for vehicle hydraulic clutch release system is related to.

Background

The existing air release valve in the hydraulic clutch separation system comprises an air release valve body, a joint shell and a hose sealing piece, wherein an air release hole is formed in the joint shell, the hose sealing piece is provided with an inclined surface and is installed on the air release valve body, when the air release valve body is rotated, the hose sealing piece can seal the air release hole, then the air release valve body is rotated for 180 degrees, and the air release hole can be opened by the hose sealing piece. The hose sealing element generates surface sealing, and when the air release valve is in a working environment with large temperature change, the air release valve body is easy to incline relative to the joint shell, so that the air release valve is easy to leak.

The invention patent of 'air release joint' disclosed in chinese patent with publication number CN102777510B is to increase an auxiliary sealing ring between a joint housing and an air release valve body to offset the tolerance variation of a hose sealing member caused by temperature variation, reduce the inclination of the air release valve body relative to the joint housing, and improve the sealing effect. This solution requires two seals, is costly and reduces the efficiency of assembly of the bleed valve.

Disclosure of Invention

The utility model discloses the problem to prior art existence provides a hydraulic line bleed valve, and aim at overcomes current bleed valve and needs two sealing members to improve the leakproofness and lead to the great defect of cost.

The utility model discloses a realize like this:

the hydraulic pipeline air relief valve comprises a connector shell and an air relief valve body which is rotatably arranged on the connector shell, wherein the connector shell is provided with a valve cavity and an air relief hole communicated with the valve cavity; when the air release valve body is rotated, the air release hole can be switched between two states corresponding to the non-passage area and the passage area; the joint shell is provided with an oil inlet channel, and when the air release hole corresponds to the non-access area, the sealing ring blocks the oil inlet channel from being communicated with the outside; when the air release hole corresponds to the passage area, the oil inlet channel is communicated with the outside.

Preferably, the sealing ring is obliquely sleeved in the sealing ring.

Preferably, the valve core is provided with an annular groove which is obliquely arranged, and the sealing ring is embedded in the annular groove.

Preferably, the passage area is provided with a communicating groove or a communicating notch, and the air vent corresponds to the passage area and is communicated with the oil inlet channel through the communicating groove or the communicating notch.

Preferably, the joint shell is provided with an oil inlet, the inner wall of the oil inlet is provided with an oil inlet hole, the oil inlet is communicated with the oil inlet channel through the oil inlet hole, the air release hole is positioned on the inner wall of the oil inlet, and the air release valve body is provided with an air release channel communicated with the outside; when the air vent corresponds to the passage area, the air vent is communicated with the air vent channel.

Preferably, the passage area is provided with an air discharge gap at the opening of the air discharge channel.

Preferably, the joint shell is provided with a clamping hole, the air release valve body is provided with an annular clamping groove corresponding to the clamping hole, and the joint shell and the air release valve body are axially limited through a clamping spring which penetrates through the clamping hole and is embedded into the clamping groove.

Preferably, the clamp spring is provided with a pair of first convex parts and a pair of second convex parts, an arc-shaped clamping part is arranged between the first convex parts and the second convex parts, and the clamping part penetrates through the clamping hole and is embedded into the clamping groove.

Preferably, the deflation valve body comprises a driving part protruding out of the joint shell, a connecting shaft is arranged between the valve core and the driving part, the diameter of the connecting shaft is larger than that of the valve core, and the clamping groove is located on the connecting shaft.

The utility model provides a hydraulic pressure pipeline bleed valve just can reduce the influence of temperature variation to the leakproofness through single sealing washer, simple structure, low cost, manufacturing convenience.

Drawings

FIG. 1 is a schematic view of a bleed valve according to an embodiment in a bleed state;

FIG. 2 is a schematic structural view of a purge valve in a sealed state according to an embodiment;

FIG. 3 is a schematic cross-sectional view of a connector housing according to an embodiment;

FIG. 4 is a schematic structural view of a relief valve body having a communication groove according to an embodiment;

FIG. 5 is a schematic structural diagram of an embodiment of a relief valve body with a communication notch.

FIG. 6 is a schematic structural diagram of a clamp spring according to an embodiment;

FIG. 7 is a schematic view showing the configuration of the second purge valve according to the embodiment in the purge state;

FIG. 8 is a schematic structural view of a second purge valve according to an embodiment in a sealed state;

FIG. 9 is a schematic sectional view of a housing of a second joint according to an embodiment;

FIG. 10 is a schematic structural view of a second relief valve according to an embodiment.

Reference is made to the accompanying drawings in which: 100. a joint housing; 110. a valve cavity; 120. air bleeding holes; 130. an oil inlet channel; 140. a clamping hole; 150. an oil inlet; 151. an oil inlet hole; 200. a relief valve body; 210. a valve core; 211. a pass-through area; 212. a non-via area; 213. an annular groove; 214. a communicating groove; 215. a communication gap; 220. a seal ring; 230. a connecting shaft; 231. a card slot; 240. a drive section; 250. an air discharge passage; 251. an air discharge gap; 300. a clamp spring; 310. a first convex portion; 320. a second convex portion; 330. a clamping part.

Detailed Description

The following detailed description is made of specific embodiments of the present invention with reference to the accompanying drawings, so as to make the technical solution of the present invention easier to understand and master. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.

Example one

The embodiment provides a relief valve for a hydraulic pipeline, as shown in fig. 1-3, comprising a connector housing 100 and a relief valve body 200 rotatably mounted on the connector housing 100, wherein the connector housing 100 is provided with a valve cavity 110 and a relief hole 120 communicated with the valve cavity 110, the relief valve body 200 is provided with a valve core 210, the valve core 210 is embedded in the valve cavity 110, a sealing ring 220 is arranged between the connector housing 100 and the relief valve body 200, the sealing ring 220 is sleeved on the valve core 210 and divides the valve core 210 into a non-passage area 212 and a passage area 211, and the non-passage area 212 and the passage area 211 are provided with radial staggered parts; as shown in fig. 1, the central axis of the bleed hole 120 passes through the non-passage area 212 and the passage area 211, i.e., the non-passage area 212 and the passage area 211 are staggered or overlapped at least in the area through which the central axis of the bleed hole 120 passes. When the relief valve body 200 is thus rotated, the relief hole 120 can be switched between two states of the corresponding non-passage area 212 and the corresponding passage area 211. The joint housing 100 is provided with the oil inlet channel 130, as shown in fig. 1, when the air bleed hole 120 corresponds to the passage area 211, the oil inlet channel 130 is communicated with the outside, that is, the air bleed hole 120 is communicated with the oil inlet channel 130, so that the gas in the oil inlet channel 130 can be discharged from the air bleed hole 120; when the bleed valve body 200 rotates 180 degrees and turns from fig. 1 to fig. 2, as shown in fig. 2, when the bleed hole 120 corresponds to the non-passage area 212, the sealing ring 220 isolates the oil inlet channel 130 from the bleed hole 120, and the sealing ring 220 isolates the oil inlet channel 130 from communicating with the outside.

The sealing ring 220 supports against the wall of the valve cavity 110, because the sealing ring 220 is in line contact with the wall of the valve cavity 110, even if the sealing ring 220 deforms, the contact surface between the sealing ring 220 and the wall of the valve cavity 110 is very small, the temperature influence on the matching of the connector shell 100 and the air release valve body 200 is small, the air release valve body 200 is not easy to incline relative to the connector shell 100, the air release valve is not easy to leak, the tolerance change is offset without an auxiliary sealing piece, the influence of the temperature change on the sealing performance can be reduced through a single simple sealing ring, the cost is low, and the assembly efficiency of the air release valve is improved.

The sealing ring 220 is obliquely sleeved in the sealing ring 220, so that the sealing ring 220 is convenient to mount, the adopted sealing ring 220 is good in universality, a conventional circular sealing ring 220 can be adopted, and the central axis of the sealing ring 220 and the axis of the valve core 210 form a certain included angle, for example, the included angle is 60 degrees, 45 degrees or 30 degrees. The valve core 210 is provided with an annular groove 213 which is obliquely arranged, the sealing ring 220 is embedded in the annular groove 213, and the annular groove 213 can limit the sealing ring 220 and prevent the sealing ring 220 from shifting.

As shown in fig. 4, the passage area 211 has a communicating groove 214, and when the gas release hole 120 corresponds to the passage area 211, the gas release hole 120 is communicated with the oil inlet passage 130 through the communicating groove 214, so that even if the gap between the passage area 211 and the wall of the valve cavity 110 is small or the gas release holes are attached to each other, the gas release can be efficiently realized. In other alternative embodiments, as shown in fig. 5, the communication groove 214 may be replaced with a communication notch 215. Further, in other alternative embodiments, the air bleeding hole 120 and the oil feeding passage 130 may be communicated only by a gap between the passage area 211 and the cavity wall of the valve cavity 110, and the air bleeding efficiency may be improved by increasing the gap between the passage area 211 and the cavity wall of the valve cavity 110 by a diameter of the passage area 211 smaller than that of the non-passage area 212.

The connector shell 100 is provided with a clamping hole 140, the air release valve body 200 is provided with an annular clamping groove 231 corresponding to the clamping hole 140, the connector shell 100 and the air release valve body 200 are axially limited through a clamping spring 300 penetrating through the clamping hole 140 and embedded into the clamping groove 231, so that the air release valve body 200 can rotate relative to the connector shell 100 but cannot axially move, and the air release valve body 200 is convenient to disassemble and assemble in a clamping spring 300 connection mode. As shown in fig. 6, the clamp spring 300 has a pair of first protrusions 310 and a pair of second protrusions 320, an arc-shaped clamping portion 330 is formed between the first protrusions 310 and the second protrusions 320, the clamping portion 330 penetrates through the clamping hole 140 and is inserted into the clamping groove 231, the release valve body 200 includes a driving portion 240 protruding from the joint housing 100, a connecting shaft 230 is formed between the valve core 210 and the driving portion 240, the diameter of the connecting shaft 230 is larger than that of the valve core 210, and the clamping groove 231 is formed in the connecting shaft 230. The shape adaptation of curved joint portion 330 and connecting axle 230, the embedding draw-in groove 231 that joint portion 330 can be more improves the spacing stability of jump ring 300.

Example two

The difference between the first embodiment and the second embodiment mainly lies in the position of the air vent 120 and the communication manner between the air vent 120 and the outside. The air bleed hole 120 in the first embodiment is directly communicated with the outside, the valve core 210 is sealed by blocking the communication between the air bleed hole 120 and the oil inlet passage 130, while the air bleed hole 120 in the first embodiment is communicated with the outside through the air bleed passage 250 of the air bleed valve body 200, and the valve core 210 is sealed by blocking the communication between the air bleed hole 120 and the outside.

Specifically, as shown in fig. 7 to 10, the joint housing 100 has an oil inlet 150, an oil inlet hole 151 is formed on an inner wall of the oil inlet 150, the oil inlet 150 communicates with the oil inlet passage 130 through the oil inlet hole 151, an air bleeding hole 120 is formed on an inner wall of the oil inlet 150, and an air bleeding passage 250 communicating with the outside is formed on the air bleeding valve body 200. As shown in fig. 7, when the air bleed hole 120 corresponds to the passage area 211, the air bleed hole 120 communicates with the air bleed passage 250, so that the gas in the oil inlet passage 130 is discharged to the outside through the oil inlet hole 151, the oil inlet 150, the air bleed hole 120, and the air bleed passage 250 in sequence. When the relief valve body 200 is rotated 180 degrees with respect to the joint housing 100, i.e., from fig. 7 to fig. 8, as shown in fig. 8, the relief hole 120 corresponds to the non-passage area 212, the relief hole 120 and the relief passage 250 are staggered and isolated by the sealing ring 220, and the sealing ring 220 is blocked between the relief hole 120 and the relief passage 250, so that the oil inlet passage 130 is disconnected from the outside.

As shown in fig. 10, the vent gap 251 is provided at the opening of the vent channel 250 in the passage region 211, so that even if the vent hole 120 is not aligned with the vent channel 250, the vent channel 250 can be communicated as long as the vent hole 120 is communicated with the vent gap 251, thereby improving the smoothness of the exhaust.

Other structures and effects of the present embodiment are consistent with those of the present embodiment, and are not described herein again.

Claims

1. The hydraulic pipeline deflation valve comprises a joint shell (100) and a deflation valve body (200) which is rotatably installed on the joint shell (100), wherein a valve cavity (110) and a deflation hole (120) communicated with the valve cavity (110) are formed in the joint shell (100), the deflation valve body (200) is provided with a valve core (210), and the valve core (210) is embedded in the valve cavity (110), and the hydraulic pipeline deflation valve is characterized in that a sealing ring (220) is arranged between the joint shell (100) and the deflation valve body (200), the sealing ring (220) is sleeved on the valve core (210) and divides the valve core (210) into a non-passage area (212) and a passage area (211), and the non-passage area (212) and the passage area (211) are provided with radial staggered positions; when the air release valve body (200) is rotated, the air release hole (120) can be switched between two states corresponding to the non-passage area (212) and the passage area (211); the joint shell (100) is provided with an oil inlet channel (130), and when the air release hole (120) corresponds to the non-passage area (212), the sealing ring (220) blocks the oil inlet channel (130) from being communicated with the outside; when the air release hole (120) corresponds to the passage area (211), the oil inlet channel (130) is communicated with the outside.

2. The hydraulic line purge valve according to claim 1, wherein the sealing ring (220) is fitted obliquely in the sealing ring (220).

3. The hydraulic line purge valve according to claim 2, wherein the valve core (210) has an inclined annular groove (213), and the sealing ring (220) is embedded in the annular groove (213).

4. The hydraulic line purge valve according to any one of claims 1-3, wherein the passage area (211) has a communication groove (214) or a communication gap (215), and when the purge hole (120) corresponds to the passage area (211), the purge hole (120) communicates with the oil inlet channel (130) through the communication groove (214) or the communication gap (215).

5. The hydraulic line purge valve according to any one of claims 1-3, wherein the joint housing (100) has an oil inlet (150), the inner wall of the oil inlet (150) has an oil inlet hole (151), the oil inlet (150) is communicated with the oil inlet channel (130) through the oil inlet hole (151), the purge hole (120) is located on the inner wall of the oil inlet (150), and the purge valve body (200) has a purge channel (250) communicated with the outside; when the air bleed holes (120) correspond to the passage area (211), the air bleed holes (120) are communicated with the air bleed channels (250).

6. A hydraulic line purge valve according to claim 5, characterized in that a purge notch (251) is provided on the passage area (211) at the opening of the purge channel (250).

7. A hydraulic line purge valve according to any of claims 1-3, wherein the adapter housing (100) has a latch hole (140) therein, the purge valve body (200) has a ring latch groove (231) therein corresponding to the latch hole (140), and the adapter housing (100) and the purge valve body (200) are axially retained by a latch spring (300) inserted through the latch hole (140) and into the latch groove (231).

8. The hydraulic line purge valve according to claim 7, wherein the clamp spring (300) has a pair of first protrusions (310) and a pair of second protrusions (320), the first protrusions (310) and the second protrusions (320) having an arc-shaped clamping portion (330) therebetween, the clamping portion (330) passing through the clamping hole (140) and being inserted into the clamping groove (231).

9. The hydraulic line purge valve according to claim 7, wherein the purge valve body (200) comprises a driving portion (240) protruding from the joint housing (100), a connection shaft (230) is provided between the valve core (210) and the driving portion (240), the diameter of the connection shaft (230) is larger than that of the valve core (210), and the catching groove (231) is located on the connection shaft (230).