Cushion valve
By introducing a regulating valve spool and multi-porous design into the buffer valve, the insufficient applicability caused by the flow fixation of the existing buffer valve is solved, and flexible flow adjustment and wider applicability are achieved.
Patent Information
- Application Number
- CN202422590027.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-07-22
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The maximum flow rate of the existing buffer valve is fixed and cannot be adjusted according to actual conditions, resulting in insufficient applicability under different operating conditions.
A buffer valve is designed. By setting a regulating valve core in the diverting channel, a plurality of adjustment through holes with different apertures are provided on the regulating valve core. Users can change the maximum flow rate of the diverting channel by rotating the regulating valve core to adapt to different working conditions.
It realizes flexible adjustment of the flow of the buffer valve, meets more different operating conditions, and improves the versatility and applicability of the buffer valve.
Smart Images
Figure CN223137137U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid control valves, and particularly relates to a buffer valve. Background Art
[0002] The buffer valve can change the flow rate and pressure of the fluid passing through it, and is mainly used to slow down and adjust the speed and impact force of moving parts, ensuring the stability and safety of the system.
[0003] The buffer valve usually needs to set up a diversion channel to achieve the diversion of the medium, so as to achieve the effect of adjusting the flow rate of the medium. The maximum flow rate of the diversion channel of the existing buffer valve is fixed, and users cannot adjust it according to the actual situation, resulting in relatively insufficient versatility of the buffer valve to adjust the flow rate of the medium and unable to meet a variety of different operating conditions.
[0004] Therefore, further improvement is needed. Summary of the Utility Model
[0005] The purpose of the utility model is to overcome the deficiencies of the above-mentioned existing technologies, and provide a buffer valve that can adjust the maximum flow rate of the diversion channel, so that the buffer valve can meet more different operating conditions.
[0006] The purpose of the utility model is realized as follows:
[0007] A buffer valve includes a valve body. The valve body has a spool cavity, a medium inlet channel and a medium outlet channel. An active spool is movably connected in the spool cavity to form a lower cavity and an upper cavity. A spool hole is provided on the active spool. The active spool can make the spool hole align or at least partially stagger with the medium inlet channel and the medium outlet channel respectively by being movably connected with the spool cavity. A diversion channel is provided on the valve body. The feeding end and the discharging end of the diversion channel are respectively communicated with the medium inlet channel and the lower cavity. The diversion channel is connected with an adjusting spool. A number of adjusting through holes with different apertures are provided on the adjusting spool. The adjusting spool is movably connected with the valve body so that the diversion channel is communicated with the lower cavity through different adjusting through holes.
[0008] As a specific scheme, the axis of the adjusting spool is perpendicular to the axes of the diversion channel and the spool cavity respectively. An adjusting cavity is provided in the adjusting spool. The adjusting through holes are distributed circumferentially on the outside of the adjusting cavity. The adjusting spool rotates relative to the valve body to make different adjusting through holes rotate to the position corresponding to the diversion channel to communicate the diversion channel with the lower cavity.
[0009] As a specific scheme, a spring is provided in the upper cavity. The active spool can compress the spring through the medium in the lower cavity to make the spool hole at least partially stagger with the medium inlet channel and the medium outlet channel respectively, and the spring can reset to make the spool hole align with the medium inlet channel and the medium outlet channel respectively.
[0010] As a specific solution, a limiting step is provided inside the lower cavity. When the valve core hole is aligned with the medium inlet channel and the medium outlet channel respectively, the lower side of the movable valve core abuts against the limiting step.
[0011] As a specific solution, an exhaust channel is provided on the valve body, and the upper cavity can communicate with the outside through the exhaust channel.
[0012] As a specific solution, an upper nut is connected to the position of the valve body corresponding to the upper cavity, and the upper nut is connected and fixed to the valve body through a threaded structure.
[0013] As a specific solution, a lower nut is connected to the position of the valve body corresponding to the lower cavity, and the lower nut is connected and fixed to the valve body through a threaded structure.
[0014] As a specific solution, sealing rings are respectively provided at the upper and lower two positions of the movable valve core relative to the valve core hole, and the sealing rings are closely fitted with the movable valve core and the valve core cavity respectively.
[0015] The beneficial effects of the present utility model are as follows:
[0016] Users can adjust the maximum flow rate of the shunt channel by adjusting the valve core, so that the buffer valve can meet more different usage conditions. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 is a schematic diagram of the usage state of an embodiment of the present utility model Figure 1 .
[0018] Figure 2 is a schematic diagram of the usage state of an embodiment of the present utility model Figure 2 . DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The present utility model will be further described below with reference to the drawings and embodiments.
[0020] See Figure 1 and Figure 2The buffer valve includes a valve body 1, wherein the valve body 1 has a valve core cavity, an inlet medium channel 11, and an outlet medium channel 12, wherein a movable valve core 2 is movably connected in the valve core cavity to form a lower cavity 13 and an upper cavity 14, wherein a valve core hole 21 is provided on the movable valve core 2, wherein the movable valve core 2 can movably connect with the valve core cavity so that the valve core hole 21 is aligned with the inlet medium channel 11 and the outlet medium channel 12, respectively, or at least partially staggered, wherein a bypass channel 15 is provided on the valve body 1, wherein the feed end and the discharge end of the bypass channel 15 are respectively connected with the inlet medium channel 11 and the lower cavity 13, wherein when the pressure of the liquid is high, the pressure of the liquid entering the lower cavity 13 from the inlet medium channel 11 through the bypass channel 15 also increases, thereby pushing the movable valve core 2 to move toward the upper cavity 14 so that the valve core hole 21 is at least partially staggered with the inlet medium channel 11 and the outlet medium channel 12, respectively, thereby reducing the flow rate of the liquid between the inlet medium channel 11 and the outlet medium channel 12, thereby achieving a buffering effect.
[0021] The diverter channel 15 is connected to the regulating valve core 3, and a plurality of regulating through holes 31 with different apertures are provided on the regulating valve core 3. The regulating valve core 3 is movably connected to the valve body 1 so that the diverter channel 15 is connected to the lower cavity 13 through different regulating through holes 31. The user can adjust the maximum flow rate of the diverter channel 15 by adjusting the valve core 3, thereby adjusting the maximum thrust of the liquid in the lower cavity 13 on the movable valve core 2, and then changing the overall buffering effect of the buffer valve, so that the buffer valve can meet more different usage conditions.
[0022] Furthermore, the axial direction of the regulating valve core 3 is perpendicular to the axial direction of the diverter channel 15 and the valve core cavity respectively. An regulating cavity 32 is provided in the regulating valve core 3. The regulating through holes 31 are circumferentially distributed on the outside of the regulating cavity 32. The regulating valve core 3 rotates relative to the valve body 1 so that different regulating through holes 31 rotate to the positions corresponding to the diverter channels 15 so that the diverter channels 15 are connected with the lower cavity 13. The user can change the overall buffering effect of the buffer valve by rotating the regulating valve core 3, and the operation is simple and convenient.
[0023] Furthermore, a spring 4 is provided in the upper cavity 14, and the movable valve core 2 can compress the spring 4 through the medium in the lower cavity 13 and make the valve core hole 21 at least partially offset from the inlet medium channel 11 and the outlet medium channel 12 respectively. The spring 4 can reset the valve core hole 21 to be aligned with the inlet medium channel 11 and the outlet medium channel 12 respectively, and the spring 4 can further play the effect of automatically adjusting the position of the movable valve core 2.
[0024] Furthermore, a limiting step 131 is provided in the lower cavity 13. When the valve core hole 21 is aligned with the inlet medium channel 11 and the outlet medium channel 12 respectively, the lower side of the movable valve core 2 abuts against the limiting step 131, further improving the accuracy of the alignment of the valve core hole 21 with the inlet medium channel 11 and the outlet medium channel 12 respectively, and the working stability of the movable valve core 2.
[0025] Further, an exhaust passage 16 is provided on the valve body 1. The upper cavity 14 can communicate with the outside through the exhaust passage 16. When the movable valve core 2 moves towards the upper cavity 14, the gas in the upper cavity 14 can be discharged outwards through the exhaust passage 16, preventing the excessive air pressure in the upper cavity 14 from affecting the normal movement of the movable valve core 2.
[0026] Further, an upper nut 5 is connected to the valve body 1 at the position corresponding to the upper cavity 14. The upper nut 5 is fixedly connected to the valve body 1 through a threaded structure. During installation, just open and remove the upper nut 5, then sequentially place the movable valve core 2 and the spring 4 into the valve core cavity, and then install the upper nut 5, which simplifies the assembly structure of the movable valve core 2 and the spring 4 with the valve body 1.
[0027] Further, a lower nut 6 is connected to the valve body 1 at the position corresponding to the lower cavity 13. The lower nut 6 is fixedly connected to the valve body 1 through a threaded structure. When it is necessary to take out the movable valve core 2 and the spring 4 from the valve core cavity, just open the upper nut 5 and the lower nut 6 simultaneously, and then use a tubular tool to extend into the lower cavity 13 to push the movable valve core 2 and the spring 4 out of the upper cavity 14, which simplifies the disassembly method of the movable valve core 2 and the spring 4 from the valve body 1.
[0028] Further, sealing rings 7 are respectively provided at the upper and lower two positions of the movable valve core 2 relative to the valve core hole 21. The sealing rings 7 are in close fit with the movable valve core 2 and the valve core cavity respectively, improving the sealing performance between the movable valve core 2 and the valve core cavity and reducing the chance of liquid leakage.
[0029] The above embodiments are only the preferred solutions of the present invention, and the present invention may also have other implementation schemes. Those skilled in the art can make equivalent deformations or substitutions without departing from the spirit of the present invention, and these equivalent deformations or substitutions are all included within the scope defined by the claims of this application.
Claims
1. A buffer valve, characterized in that, It includes a valve body (1) which has a spool cavity, an inlet medium passage (11) and an outlet medium passage (12) inside. An active spool (2) is movably connected in the spool cavity to form a lower cavity (13) and an upper cavity (14). A spool hole (21) is provided on the active spool (2). The active spool (2) can make the spool hole (21) align or at least partially stagger with the inlet medium passage (11) and the outlet medium passage (12) respectively by being movably connected with the spool cavity. A shunt passage (15) is provided on the valve body (1). The feed end and the discharge end of the shunt passage (15) are respectively communicated with the inlet medium passage (11) and the lower cavity (13). A regulating spool (3) is connected to the shunt passage (15). A number of regulating through holes (31) with different apertures are provided on the regulating spool (3). The regulating spool (3) is movably connected with the valve body (1) so that the shunt passage (15) is communicated with the lower cavity (13) through different regulating through holes (31).
2. The buffer valve according to claim 1, wherein: The axis of the regulating spool (3) is perpendicular to the axes of the shunt passage (15) and the spool cavity respectively. An adjusting cavity (32) is provided inside the regulating spool (3). The regulating through holes (31) are circumferentially distributed outside the adjusting cavity (32). The regulating spool (3) rotates relative to the valve body (1) so that different regulating through holes (31) rotate to the position corresponding to the shunt passage (15) to communicate the shunt passage (15) with the lower cavity (13).
3. The buffer valve according to claim 1, characterized in that: A spring (4) is provided in the upper cavity (14). The active spool (2) can compress the spring (4) through the medium in the lower cavity (13) and make the spool hole (21) at least partially stagger with the inlet medium passage (11) and the outlet medium passage (12) respectively. The spring (4) can reset to make the spool hole (21) align with the inlet medium passage (11) and the outlet medium passage (12) respectively.
4. The buffer valve according to claim 3, wherein: A limiting step (131) is provided in the lower cavity (13). When the spool hole (21) aligns with the inlet medium passage (11) and the outlet medium passage (12) respectively, the lower side of the active spool (2) abuts against the limiting step (131).
5. The buffer valve according to claim 3, characterized in that: An exhaust passage (16) is provided on the valve body (1). The upper cavity (14) can be communicated with the outside through the exhaust passage (16).
6. The buffer valve according to claim 3, wherein: An upper nut (5) is connected to the valve body (1) at the position corresponding to the upper cavity (14). The upper nut (5) is connected and fixed to the valve body (1) through a threaded structure.
7. The buffer valve according to claim 6, wherein: A lower nut (6) is connected to the valve body (1) at the position corresponding to the lower cavity (13). The lower nut (6) is connected and fixed to the valve body (1) through a threaded structure.
8. The buffer valve according to any one of claims 1-7, characterized in that: Sealing rings (7) are respectively provided at the upper and lower two positions of the active spool (2) relative to the spool hole (21). The sealing rings (7) are closely fitted with the active spool (2) and the spool cavity respectively.