Hydraulic one-way valve capable of adjusting pressure
By introducing an adjustable design of adjusting blocks and springs into the check valve, the problem of pressure fixation of existing check valves is solved, and the pressure adjustment is achieved and adaptability is improved.
Patent Information
- Application Number
- CN202421928814.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-09
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-08-09
AI Technical Summary
The flow pressure required for conduction of existing check valves is fixed and cannot be adjusted according to the needs of use, resulting in low adaptability.
An adjustable pressure hydraulic check valve is designed to adjust the conduction pressure required by the first runner by adjusting the relative position between the block and the valve core, thereby adjusting the thrust force of the first spring to the valve core.
The pressure adjustable of the check valve is achieved, which improves the adaptability of the check valve and allows it to adapt to more different working conditions.
Smart Images
Figure CN222811263U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of one-way valves, in particular to a hydraulic one-way valve with adjustable pressure. Background Art
[0002] A one-way valve is a device that uses hydraulic pressure and spring force to allow fluid to pass in only one direction while blocking reverse flow. The fluid pressure required for the existing one-way valve to be turned on is fixed and cannot be adjusted according to usage needs, resulting in low adaptability of the one-way valve.
[0003] Therefore, further improvements are needed. Utility Model Content
[0004] The utility model aims to overcome the deficiencies of the prior art and to provide an adjustable pressure hydraulic one-way valve, which can adjust the liquid flow pressure required for the conduction of the first flow channel as needed and improve the adaptability of the one-way valve.
[0005] The purpose of the utility model is achieved in this way:
[0006] A hydraulic one-way valve with adjustable pressure includes a valve body, a first valve core and an adjusting block, a first flow channel is formed between the valve body and the adjusting block, the first flow channel has a first water inlet and a first water outlet, the first valve core can open or close the first water inlet, a first spring that can push the first valve core to close the first water inlet is provided between the first valve core and the adjusting block, an internal thread is provided on the inner side of the valve body, an external thread is provided on the outer side of the adjusting block, a countersunk portion that can drive the adjusting block to rotate by a tool is provided on the inner side of the adjusting block, and the adjusting block forms different distances with the first valve core by rotating so that the first spring forms different thrusts on the first valve core.
[0007] As a specific solution, a first sealing ring is provided on the outer side of the regulating block, the external thread is located between the first sealing ring and the first valve core, and the first sealing ring is sealed and matched with the regulating block and the valve body respectively.
[0008] As a specific solution, a second flow channel is formed between the inner side of the first valve core and the regulating block, a second valve core for opening or closing the second flow channel is provided on the inner side of the first valve core, a second spring capable of pushing the second valve core to close the second flow channel is provided between the second valve core and the first valve core, the first flow channel and the second flow channel are isolated from each other and the water flow directions are opposite.
[0009] As a specific solution, the first water inlet is arranged on the side of the valve body axially close to the first valve core, the first water outlet is arranged on the side wall of the valve body, and the first flow channel is arranged between the inner wall of the valve body and the outer wall of the first valve core.
[0010] As a specific solution, the first valve core is provided with an isolation ring extending toward the regulating block, the second flow channel portion is located on the inner side of the isolation ring, the regulating block is provided with an avoidance groove corresponding to the isolation ring, the regulating block and the first valve core form different distances so that the isolation ring extends into the avoidance groove at different depths, and the isolation ring is provided with a second sealing ring, which is respectively sealed with the isolation ring and the avoidance groove.
[0011] As a specific solution, the first spring is arranged on the inner side of the isolation ring, and the radial width of the first spring is equivalent to the inner diameter width of the isolation ring.
[0012] As a specific solution, the second valve core includes a plugging part and a guide column. The first valve core is provided with a second water inlet and a second water outlet. The cross-section of the plugging part is larger than the cross-section of the second water inlet. The second spring can push the plugging part to abut against the second water inlet. The guide column extends toward the second water outlet and is movably connected with the end of the first valve core.
[0013] As a specific solution, a third water inlet is provided at a position corresponding to the inner side of the isolation ring at one end of the counterbore portion facing the first valve core, and the third water inlet, the second water inlet and the second water outlet are connected in sequence to form a second flow channel.
[0014] The beneficial effects of the utility model are:
[0015] The regulating block can adjust its relative position with the valve body as required to change the thrust of the first spring on the first valve core, thereby changing the conduction pressure required for the first flow channel, so that the one-way valve can adapt to more different working conditions and improve the adaptability of the one-way valve. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 The working state of the embodiment of the utility model is shown in FIG. Figure 1 .
[0017] Figure 2 The working state of the embodiment of the utility model is shown in FIG. Figure 2 .
[0018] Figure 3 The working state of the embodiment of the utility model is shown in FIG. Figure 3 .
[0019] Figure 4 The working state of the embodiment of the utility model is shown in FIG. Figure 4 . DETAILED DESCRIPTION
[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments.
[0021] See also Figure 1-Figure 4The adjustable pressure hydraulic one-way valve comprises a valve body 1, a first valve core 2 and an adjusting block 3. A first flow channel 11 is formed between the valve body 1 and the adjusting block 3. The first flow channel 11 has a first water inlet 111 and a first water outlet 112. The first valve core 2 can open or close the first water inlet 111. A first spring 41 capable of pushing the first valve core 2 to close the first water inlet 111 is provided between the first valve core 2 and the adjusting block 3. An internal thread is provided on the inner side of the valve body 1, and an external thread is provided on the outer side of the adjusting block 3. A countersunk portion 31 capable of driving the adjusting block 3 to rotate by a tool is provided on the inner side of the adjusting block 3. The adjusting block 3 forms different spacings with the first valve core 2 by rotating so that the first spring 41 forms different thrusts on the first valve core 2. The countersunk portion 31 is preferably a hexagonal countersunk portion, which can be connected and matched with a standard tool such as a hexagonal key. The user can rotate the adjusting block 3 by the hexagonal key. The adjusting block 3 can be axially close to the first valve core 2 or away from the valve core under the cooperation of the internal thread and the external thread, so that the elastic force of the first spring 41 increases or decreases accordingly.
[0022] Furthermore, the counterbore portion 31 does not need to extend outward, thereby avoiding an additional increase in the overall volume of the one-way valve.
[0023] The regulating block 3 can adjust its relative position with the valve body 1 as needed, thereby changing the thrust of the first spring 41 on the first valve core 2. Under different thrusts, the first valve core 2 also requires different pressures for the liquid flow to cause the first valve core 2 to open the first water inlet 111 low, thereby changing the conduction pressure required for the first flow channel 11, so that the one-way valve can adapt to more different working conditions and improve the adaptability of the one-way valve.
[0024] Furthermore, a first sealing ring 51 is provided on the outer side of the adjusting block 3, and the external thread is located between the first sealing ring 51 and the first valve core 2. The first sealing ring 51 is sealed with the adjusting block 3 and the valve body 1 respectively to prevent liquid from leaking from the connection position between the adjusting block 3 and the valve body 1.
[0025] Furthermore, a second flow channel 12 is formed between the inner side of the first valve core 2 and the regulating block 3, and a second valve core 6 for opening or closing the second flow channel 12 is provided on the inner side of the first valve core 2, and a second spring 42 capable of pushing the second valve core 6 to close the second flow channel 12 is provided between the second valve core 6 and the first valve core 2. The first flow channel 11 and the second flow channel 12 are isolated from each other and have opposite water flow directions, which can realize two-way closure of the fluid as needed or allow the fluid to be conducted in different directions under a specific fluid pressure, so that the one-way valve can meet more different usage conditions.
[0026] Furthermore, the first water inlet 111 is arranged on the side of the valve body 1 axially close to the first valve core 2, the first water outlet 112 is arranged on the side wall of the valve body 1, and the first flow channel 11 is arranged between the inner wall of the valve body 1 and the outer wall of the first valve core 2.
[0027] Furthermore, the first valve core 2 is provided with an isolation ring 21 extending toward the regulating block 3, and the second flow channel 12 is partially located on the inner side of the isolation ring 21. The regulating block 3 is provided with an avoidance groove 32 corresponding to the isolation ring 21. The regulating block 3 and the first valve core 2 form different spacings so that the isolation ring 21 extends into the avoidance groove 32 at different depths. The isolation ring 21 is provided with a second sealing ring 52, and the second sealing ring 52 is respectively sealed with the isolation ring 21 and the avoidance groove 32. The isolation ring 21 can separate the first flow channel 11 and the second flow channel 12. The cooperation between the isolation ring 21 and the avoidance groove 32 can further improve the stability of the movement process of the regulating block 3, so that it is not easy to deviate.
[0028] Furthermore, the first spring 41 is arranged on the inner side of the isolation ring 21, and the radial width of the first spring 41 is equivalent to the inner diameter width of the isolation ring 21. The isolation ring 21 can also limit the first spring 41, thereby improving the stability of the activity of the first spring 41 and preventing it from being easily offset.
[0029] Furthermore, the second valve core 6 includes a plugging part 61 and a guide column 62. The first valve core 2 is provided with a second water inlet 22 and a second water outlet 23. The cross-section of the plugging part 61 is larger than the cross-section of the second water inlet 22. The second spring 42 can push the plugging part 61 to abut against the second water inlet 22. The guide column 62 extends toward the second water outlet 23 and is movably connected with the end of the first valve core 2.
[0030] Furthermore, a third water inlet 33 is provided at one end of the counterbore portion 31 facing the first valve core 2 at a position corresponding to the inner side of the isolation ring 21 , and the third water inlet 33 , the second water inlet 22 and the second water outlet 23 are connected in sequence to form a second flow channel 12 .
[0031] like Figure 3 As shown, when liquid enters the one-way valve from the positive direction and the pressure of the liquid is greater than the thrust of the first spring 41 on the first valve core 2, the first valve core 2 opens the first water inlet 111, so that the first flow channel 11 is connected, and the second valve core 6 keeps the second water inlet 22 closed under the action of the positive water pressure, so that the second flow channel 12 is closed.
[0032] like Figure 4 As shown, when liquid enters the one-way valve from the reverse direction and the pressure of the liquid is greater than the thrust of the second spring 42 on the second valve core 6, the second valve core 6 opens the second water inlet 22, allowing the second flow channel 12 to be connected, and the first water inlet 111 is kept closed under the action of the reverse water pressure of the first valve core 2, so that the first flow channel 11 is closed.
[0033] The above embodiments are only preferred embodiments of the present invention, and the present invention may have other embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all within the scope set by the claims of this application.
Claims
1. An adjustable pressure hydraulic one-way valve, characterized in that: The invention comprises a valve body (1), a first valve core (2) and an adjusting block (3), wherein a first flow channel (11) is formed between the valve body (1) and the adjusting block (3), the first flow channel (11) having a first water inlet (111) and a first water outlet (112), the first valve core (2) being capable of opening or closing the first water inlet (111), a first spring (41) being capable of pushing the first valve core (2) to close the first water inlet (111) being provided between the first valve core (2) and the adjusting block (3), the inner side of the valve body (1) being provided with an internal thread, the outer side of the adjusting block (3) being provided with an external thread, the inner side of the adjusting block (3) being provided with a countersunk hole portion (31) capable of driving the adjusting block (3) to rotate by means of a tool, the adjusting block (3) being capable of forming different distances with the first valve core (2) by means of rotation so that the first spring (41) forms different thrusts on the first valve core (2).
2. The adjustable pressure hydraulic one-way valve according to claim 1, characterized in that: A first sealing ring (51) is provided on the outer side of the regulating block (3), the external thread is located between the first sealing ring (51) and the first valve core (2), and the first sealing ring (51) is respectively in sealing cooperation with the regulating block (3) and the valve body (1).
3. The adjustable pressure hydraulic one-way valve according to claim 1 or 2, characterized in that: A second flow channel (12) is formed between the inner side of the first valve core (2) and the regulating block (3); a second valve core (6) for opening or closing the second flow channel (12) is provided on the inner side of the first valve core (2); a second spring (42) capable of pushing the second valve core (6) to close the second flow channel (12) is provided between the second valve core (6) and the first valve core (2); the first flow channel (11) and the second flow channel (12) are isolated from each other and have opposite water flow directions.
4. The adjustable pressure hydraulic one-way valve according to claim 3, characterized in that: The first water inlet (111) is arranged on a side of the valve body (1) axially close to the first valve core (2), the first water outlet (112) is arranged on a side wall of the valve body (1), and the first flow channel (11) is arranged between the inner side wall of the valve body (1) and the outer side wall of the first valve core (2).
5. The adjustable pressure hydraulic one-way valve according to claim 4, characterized in that: The first valve core (2) is provided with an isolating ring (21) extending in the direction of the regulating block (3); the second flow channel (12) is partially located on the inner side of the isolating ring (21); the regulating block (3) is provided with an avoidance groove (32) corresponding to the isolating ring (21); the regulating block (3) and the first valve core (2) form different spacings so that the isolating ring (21) extends into the avoidance groove (32) to different depths; the isolating ring (21) is provided with a second sealing ring (52); the second sealing ring (52) is respectively in sealing cooperation with the isolating ring (21) and the avoidance groove (32).
6. The adjustable pressure hydraulic one-way valve according to claim 5, characterized in that: The first spring (41) is arranged on the inner side of the isolation ring (21), and the radial width of the first spring (41) is equivalent to the inner diameter width of the isolation ring (21).
7. The adjustable pressure hydraulic one-way valve according to claim 3, characterized in that: The second valve core (6) comprises a plugging portion (61) and a guide column (62); the first valve core (2) is provided with a second water inlet (22) and a second water outlet (23); the cross section of the plugging portion (61) is larger than the cross section of the second water inlet (22); the second spring (42) is capable of pushing the plugging portion (61) to abut against the second water inlet (22); the guide column (62) extends toward the second water outlet (23) and is movably connected to the end of the first valve core (2).
8. The adjustable pressure hydraulic one-way valve according to claim 7, characterized in that: A third water inlet (33) is provided at a position corresponding to the inner side of the isolation ring (21) at one end of the counterbore portion (31) facing the first valve core (2); the third water inlet (33), the second water inlet (22) and the second water outlet (23) are connected in sequence to form a second flow channel (12).