Oil tank dumping stop valve

Abstract

The utility model relates to the technical field of oil tank stop valves, and discloses an oil tank dumping stop valve which comprises a valve body with a valve cavity and a valve cover used for covering the valve cavity, a vent hole is formed in the valve cover, a valve nozzle with an exhaust channel is arranged on the valve body, the exhaust channel is communicated with the valve cavity, and an exhaust hole is formed in the top wall of the valve cavity. Through cooperative use of the valve body, the valve cavity, the valve cover, the vent hole, the valve nozzle, the exhaust hole, the blocking piece, the sealing piece, the gland and the elastic supporting piece, when the sealing performance of the stop valve is reduced, the valve cover can be moved downwards, the clamping protrusion on the valve cover falls off from the clamping groove, then the blocking piece is moved downwards, and the sealing piece is moved downwards. According to the stop valve, the sealing piece is arranged on the blocking piece, the sealing piece is taken down from the pinnacle of the blocking piece to be replaced, in the same way, the sealing piece can be installed, the sealing piece can be conveniently disassembled and assembled, the effect of improving the sealing performance can be achieved, the whole stop valve can be prevented from being replaced, and practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of oil tank stop valves, in particular to an oil tank dumping stop valve. Background Art

[0002] The stop valve for automobile hydraulic oil tank is a device used to control the flow and cut-off of oil in automobile hydraulic system pipelines and integrated oil circuits. Its valve core is hydraulically balanced, with small opening force, reliable sealing performance, easy operation and exquisite appearance.

[0003] The present application is an improvement on the prior art. In the prior art, in actual use, the existing oil tank dumping stop valve mostly adopts a rubber block provided on the top of the sealing member to block the exhaust hole to achieve a sealing effect. However, with the use of time, the rubber block will gradually wear out, resulting in low sealing. At this time, the entire stop valve needs to be replaced, which is costly and has low practicality. Utility Model Content

[0004] The utility model aims to provide a tank dumping stop valve, which solves the problem that a rubber block is arranged on the top of the sealing member to block the exhaust hole to achieve a sealing effect in the background technology, but with the use of time, the rubber block will gradually wear out, resulting in low sealing performance. At this time, the entire stop valve needs to be replaced, which is costly and has low practicality.

[0005] In order to solve the above technical problems, the utility model provides the following technical solutions:

[0006] A fuel tank dumping stop valve, comprising a valve body with a valve cavity and a valve cover for covering the valve cavity, the valve cover being provided with a vent hole, the valve body being provided with a valve nozzle with an exhaust channel, the exhaust channel being communicated with the valve cavity and forming an exhaust hole on the top wall of the valve cavity, characterized in that: a plugging member with a pointed top is provided in the valve cavity, and a sealing member is provided on the pointed top; when the stop valve is upright, the plugging member is located in a first position so that the sealing member and the exhaust hole are in a disengaged state, and when the stop valve is tilted, the plugging member is located in a second position so that the sealing member and the exhaust hole are in a sealed state

[0007] Preferably, an inner annular groove is arranged on the sealing member around the pointed top, and the sealing member comprises a sealing portion and an embedding portion engaged with the inner annular groove.

[0008] Preferably, the sealing member is further provided with a pressure cover, the sealing member is provided with an outer ring groove around the inner ring groove, the pressure cover has a pressing portion engaged with the outer ring groove, and the pressure cover is provided with a through hole for the sealing portion to pass through.

[0009] Preferably, a placement cavity is provided at the bottom of the blocking member, an elastic support member is provided in the placement cavity, and one end of the elastic support member located outside the placement cavity abuts against the valve cover.

[0010] Preferably, a central column is provided inside, and the elastic support member is sleeved on the central column.

[0011] Preferably, an air inlet groove is provided on the periphery of the valve body close to the valve cover.

[0012] Preferably, the inner side of the valve cover is provided with latching protrusions distributed at intervals, and the valve body is provided with latching grooves cooperating with the latching protrusions.

[0013] Compared with the prior art, the beneficial effects achieved by the utility model are:

[0014] 1. Through the coordinated use of the valve body, valve cavity, valve cover, vent hole, valve mouth, exhaust hole, plugging piece, sealing piece, gland and elastic support piece, when the sealing performance of the stop valve is reduced, the valve cover can be moved downward, the convex part on the valve cover can fall off from the groove, and then the plugging piece can be moved downward, and the sealing piece can be removed from the tip of the plugging piece for replacement. Similarly, the installation of the sealing piece can be achieved. By facilitating the disassembly and assembly of the sealing piece, not only the sealing performance can be improved, but also the replacement of the entire stop valve can be avoided, and the practicability is high.

[0015] 2. Through the coordinated use of the seal, the sealing part and the exhaust hole, when the oil tank is upright, that is, the stop valve is upright, the seal and the exhaust hole are separated, thereby achieving the exhaust state. When the oil tank is tilted and the stop valve is tilted, the sealing part on the seal is embedded in the exhaust hole, thereby achieving the sealed state. The operation is simple and the flexibility is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional partial schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is an assembly diagram of the utility model;

[0018] Figure 3 This is a schematic diagram of a partial structure of a plugging member of the utility model when viewed from above;

[0019] Figure 4 It is a schematic diagram of the partial structure of the valve body of the utility model when viewed from above.

[0020] Among them: 1. valve body; 101. air inlet groove; 102. card slot; 2. valve cavity; 3. valve cover; 301. card convex; 4. air vent; 5. valve nozzle; 6. exhaust hole; 7. sealing member; 701. pinnacle; 702. inner ring groove; 703. outer ring groove; 704. placement cavity; 705. center column; 8. sealing member; 801. sealing part; 802. embedded part; 9. pressure cover; 901. pressing part; 902. through hole; 10. elastic support member; 11. sealing sleeve. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] See also Figure 1-4 A fuel tank dumping stop valve comprises a valve body 1 having a valve cavity 2 and a valve cover 3 for covering the valve cavity 2, the valve cover 3 is provided with a vent hole 4, the valve body 1 is provided with a valve mouth 5 with an exhaust passage, a plugging member 7 with a pointed top 701 is provided in the valve cavity 2, an inner ring groove 702 is provided around the pointed top 701 on the plugging member 7, a sealing member 8 comprises a sealing portion 801 and an embedded portion 802 embedded with the inner ring groove 702, a pressure cover 9 is further provided on the plugging member 7, and a pressure cover 9 is provided on the plugging member 7. An outer ring groove 703 is arranged around the inner ring groove 702, the gland 9 has a pressing part 901 engaged with the outer ring groove 703, the gland 9 is provided with a through hole 902 for the sealing part 801 to pass through, a placement cavity 704 is arranged at the bottom of the blocking member 7, an elastic support member 10 is arranged in the placement cavity 704, one end of the elastic support member 10 located outside the placement cavity 704 abuts against the valve cover 3, a center column 705 is arranged in the placement cavity 704, and the elastic support member 10 is sleeved on the center column 705;

[0023] Specifically, Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, when the sealing performance of the stop valve is reduced during use, the valve cover 3 can be moved downward, and the protrusion 301 on the valve cover 3 can fall off from the groove 102, and then the plugging member 7 can be moved downward, and the sealing member 8 can be removed from the pointed top 701 on the plugging member 7 for replacement. Similarly, the installation of the sealing member 8 can be realized. By facilitating the disassembly and assembly of the sealing member 8, not only can the sealing performance be improved, but also the replacement of the entire stop valve can be avoided, which is highly practical.

[0024] Among them: by embedding the pressing part 901 on the pressure cover 9 into the outer ring groove 703 on the sealing part 7, the sealing part 8 can be pressed to prevent the sealing part 8 from falling off. By setting the elastic support part 10, the elastic support part 10 can adopt a spring, and the function of the elastic support part 10 is to make the sealing part 801 of the sealing part 8 always located in the exhaust hole 6 in a semi-sealed state, so that when the oil tank tilts and causes the stop valve to be tilted, the sealing part 801 can quickly block the exhaust hole 6.

[0025] The exhaust channel is communicated with the valve cavity 2 and an exhaust hole 6 is formed on the top wall of the valve cavity 2. An air inlet groove 101 is provided on the periphery of the valve body 1 near the valve cover 3. The inner side of the valve cover 3 is provided with spaced protrusions 301. The valve body 1 is provided with a groove 102 that matches the protrusion 301. A sealing member 8 is provided on the tip 701. When the stop valve is upright, the blocking member 7 is located in the first position so that the sealing member 8 is disengaged from the exhaust hole 6. When the stop valve is tilted, the blocking member 7 is located in the second position so that the sealing member 8 is in a sealed state with the exhaust hole 6.

[0026] Specifically, Figure 2 , Figure 3 and Figure 4 As shown, when in use, when the oil tank is upright, that is, the stop valve is upright, the seal 8 is separated from the exhaust hole 6, thereby achieving an exhaust state. When the oil tank is tilted and the stop valve is tilted, the sealing portion 801 on the seal 8 is embedded in the exhaust hole 6, thereby achieving a sealed state. The operation is simple and the flexibility is strong.

[0027] Among them: through the groove 102 on the valve body 1 and the protrusion 301 on the valve cover 3, a detachable effect can be achieved, that is, the valve body 1 and the valve cover 3 can be separated, and a sealing sleeve 11 is also provided on the upper part of the valve body 1 located at the air inlet groove 101, which is used to install the stop valve on the annular hole on the top of the oil tank; the setting of the air inlet groove 101 facilitates the air intake of the valve body 1, and the setting of the valve mouth 5 facilitates the exhaust of the stop valve.

[0028] Working principle: In the present application, when the sealing performance of the stop valve is reduced, the valve cover 3 can be moved downward, and the protrusion 301 on the valve cover 3 can fall off from the groove 102, and then the sealing member 7 can be moved downward, and the sealing member 8 can be removed from the tip 701 on the sealing member 7 for replacement. Similarly, the installation of the sealing member 8 can be achieved. By facilitating the disassembly and assembly of the sealing member 8, not only can the sealing performance be improved, but also the replacement of the entire stop valve can be avoided, and the practicality is high. Secondly, when the oil tank is upright, that is, the stop valve is upright, the sealing member 8 is disengaged from the exhaust hole 6, thereby achieving the exhaust state. When the oil tank is tilted and the stop valve is tilted, the sealing portion 801 on the sealing member 8 is embedded in the exhaust hole 6, thereby achieving the sealed state. The operation is simple and the flexibility is strong.

[0029] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fuel tank dump stop valve, comprising a valve body (1) having a valve cavity (2) and a valve cover (3) for covering the valve cavity (2), the valve cover (3) being provided with a vent hole (4), the valve body (1) being provided with a valve nozzle (5) having an exhaust passage, the exhaust passage being in communication with the valve cavity (2) and having an exhaust hole (6) formed on a top wall of the valve cavity (2), characterized in that: A blocking member (7) with a pointed top (701) is arranged in the valve cavity (2), and a sealing member (8) is arranged on the pointed top (701); when the stop valve is upright, the blocking member (7) is located in a first position so that the sealing member (8) and the exhaust hole (6) are in a disengaged state; when the stop valve is tilted, the blocking member (7) is located in a second position so that the sealing member (8) and the exhaust hole (6) are in a sealed state.

2. The fuel tank dumping stop valve according to claim 1, characterized in that: An inner annular groove (702) is provided on the blocking member (7) around the pointed top (701), and the sealing member (8) comprises a sealing portion (801) and an embedded portion (802) embedded in the inner annular groove (702).

3. The fuel tank dumping stop valve according to claim 2, characterized in that: The sealing member (7) is also provided with a pressure cover (9), the sealing member (7) is provided with an outer ring groove (703) surrounding the inner ring groove (702), the pressure cover (9) has a pressing portion (901) engaged with the outer ring groove (703), and the pressure cover (9) is provided with a through hole (902) for the sealing portion (801) to pass through.

4. The fuel tank dumping stop valve according to claim 1 or 2, characterized in that: A placement cavity (704) is provided at the bottom of the blocking member (7), an elastic support member (10) is provided in the placement cavity (704), and one end of the elastic support member (10) located outside the placement cavity (704) abuts against the valve cover (3).

5. The fuel tank dumping stop valve according to claim 4, characterized in that: A central column (705) is arranged in the placement cavity (704), and the elastic support member (10) is sleeved on the central column (705).

6. The fuel tank dumping stop valve according to claim 1, characterized in that: An air inlet groove (101) is provided on the periphery of the valve body (1) close to the valve cover (3).

7. The fuel tank dumping stop valve according to claim 1, characterized in that: The inner side of the valve cover (3) is provided with locking protrusions (301) distributed at intervals, and the valve body (1) is provided with locking grooves (102) that cooperate with the locking protrusions (301).

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