A pressure regulating valve

Abstract

The present invention relates to the field of regulating valves, and specifically to a pressure-stabilizing regulating valve, comprising a valve body mechanism for controlling the on-off of gas transmission, a torsion mechanism for torsionally adjusting the valve body mechanism, and a pressure transmission reset mechanism for ensuring the driving pressure of the valve body mechanism. The valve body mechanism comprises a valve body and a rotating valve core. The valve body is a cylindrical structure. The rotating valve core is movably installed inside the valve body. A sealing mechanism matching the rotating valve core is installed at the air inlet end of the valve body. A torsion mechanism is arranged between the outside of the rotating valve core and the inner wall of the valve body. The pressure transmission reset mechanism is installed inside the valve body. A knocking mechanism is arranged at one end of the rotating valve core away from the sealing mechanism. A safety matching mechanism is arranged at one end of the rotating valve core away from the torsion mechanism and located on the inner wall of the valve body. The technical problem that the ejector pin needs to overcome the pressure at the pressure supply end before it can push the valve core to open and the air flow in the channel between the valve core and the valve body is small is solved.

Description

Technical Field

[0001] The invention relates to the field of regulating valves, and in particular to a pressure-stabilizing regulating valve. Background Art

[0002] In the field of airguns, the pressure regulating valve (commonly called a pressure regulating valve or a pressure stabilizer) is mainly used to control and stabilize the pressure of the gas, thereby ensuring that the air pressure is constant and the shooting is stable when the airgun is fired. Airguns usually use compressed air, carbon dioxide (CO2) or other high-pressure gases as power sources, and the function of the pressure regulating valve is to reduce and stabilize the high-pressure gas in the gas tank to a working pressure range suitable for firing.

[0003] In the prior art, in the pressure-stabilizing regulating valve with the publication number CN113028080A, the way to open the valve is to push the valve core back to move the valve core toward the pressure end, thereby prompting the gas channel to open. However, this type of valve core structure is found to lose some kinetic energy when used in the field of air guns. The valve core must resist the pressure before it can open, and after opening, the gas must pass around the valve core to reach the air gun. The opening is small and the gas flow is not smooth. After firing, although the valve core can be closed, when the pressure is insufficient, the pressure cannot reach the expected high pressure when firing again, so that the bullet cannot achieve the expected effect after being fired. Summary of the invention

[0004] The present invention provides a pressure-stabilizing regulating valve to solve the technical problems that the ejector pin needs to overcome the pressure at the pressure supply end before it can push the valve core to open and the air flow in the channel between the valve core and the valve body is small.

[0005] A pressure-stabilizing and regulating valve of the present invention adopts the following technical scheme: it comprises a valve body mechanism for controlling the on-off of gas transmission, a torsion mechanism for torsionally regulating the valve body mechanism, and a pressure transmission and reset mechanism for ensuring the driving pressure of the valve body mechanism, the valve body mechanism comprises a valve body and a rotating valve core, the valve body is a cylindrical structure, the rotating valve core is movably installed inside the valve body, a sealing mechanism matching the rotating valve core is installed at the air inlet end of the valve body, a torsion mechanism is arranged between the outside of the rotating valve core and the inner wall of the valve body, the pressure transmission and reset mechanism is installed inside the valve body, a knocking mechanism is arranged at one end of the rotating valve core away from the sealing mechanism, a safety matching mechanism is arranged at one end of the rotating valve core away from the torsion mechanism and located on the inner wall of the valve body, the safety matching mechanism is used for preventing the knocking mechanism from driving the rotating valve core to open when the pressure at the gas source end is insufficient;

[0006] A transmission inner hole is formed inside the rotary valve core, and an air outlet is formed on the top of the valve body. An opening at one end of the transmission inner hole corresponds to one side of the sealing mechanism, and an opening at the other end of the transmission inner hole corresponds to the air outlet. The rotary valve core is rotated and slidably connected to the valve body through the torsion mechanism and the knocking mechanism. The sealing mechanism includes a sealing ring, and an air hole is formed on the sealing ring to match the transmission inner hole for ventilation. The sealing ring and the transmission inner hole are not connected in an initial state.

[0007] Furthermore, the torsion mechanism includes a first torsion limit block, two of the first torsion limit blocks are symmetrically installed on the side of the rotating valve core, and a first torsion extrusion groove matching the first torsion limit block is formed on the valve body, and the first torsion extrusion groove is divided into a smooth torsion portion, a transition portion, and a separation torsion portion. The rotating valve core slides in the first torsion extrusion groove through the first torsion limit block, so that the first torsion limit block rotates first and then slides to the side away from the sealing ring during the torsion process, and a torsion return spring is arranged between the outside of the central part of the rotating valve core and the valve body.

[0008] Furthermore, the knocking mechanism includes an impact block, a sliding column is installed on the impact block near the end face of the rotating valve core, a column groove matching the sliding column is formed on the rotating valve core, two second torsion limit blocks are symmetrically arranged on the side of the sliding column, and a second torsion limit groove matching the second torsion limit block is symmetrically formed on the column groove of the rotating valve core.

[0009] Furthermore, a plurality of limit slide blocks are evenly arranged outside the impact block, and a limit slide groove is formed on the inner wall of the rotating valve core corresponding to the limit slide block, and the length of the limit slide groove is greater than the limit slide block, thereby limiting the activity area of ​​the limit slide block and the impact block.

[0010] Furthermore, the safety cooperation mechanism includes a swing rod, which is connected to the rotating valve core through a pin shaft, and a safety block is formed on the inner side of the swing rod near one end of the impact block, a release groove is formed on the rotating valve core corresponding to the safety block, a resistance block is formed on the side of the swing rod corresponding to the rotating valve core, a resistance adjustment component is arranged on the side of the swing rod away from the rotating valve core, and the swing rod is made of elastic copper sheet.

[0011] Furthermore, the pressure transmission reset mechanism includes a side cavity, which is arranged inside the valve body, and the air inlet end of the side cavity is located on the side of the sealing ring away from the rotating valve core, and the air outlet end of the side cavity corresponds to the rotating valve core. In the initial state of the rotating valve core, a torsion groove is formed at the position corresponding to the air outlet end of the side cavity.

[0012] Furthermore, when the rotating valve core is in an initial state, the angle between the first torsion limit block and the horizontal end surface is 45°.

[0013] Furthermore, the resistance adjustment assembly includes a resistance rod, which is slidably mounted on an adjusting rod, the adjusting rod is connected to the valve body via a thread, the adjusting rod is connected through the valve body, a hand-tightened nut is installed on the outside of the adjusting rod, a pressure spring is arranged between the inside of the adjusting rod and the adjusting rod, and scale lines are arranged on the outside of the adjusting rod.

[0014] Furthermore, the release groove is an arc groove, and the arc angle of the release groove is 45°, the width of the release groove is greater than the resistance block, and when the rotary valve core is in an initial state, the release groove does not cooperate with the resistance block.

[0015] Furthermore, the second torsion limiting groove is a spiral structure, and the curvature of the second torsion limiting groove is the same as the curvature of the separation torsion portion on the first torsion extrusion groove.

[0016] The beneficial effects of the present invention are as follows: the present invention utilizes a torsion structure to cooperate with a rotating valve core and a transmission inner hole, so that the rotating valve core twists to open the transmission inner hole after receiving power, thereby avoiding the situation in the prior art that the valve core needs to overcome the pressure at the high-pressure end before it can be opened, and during the torsion process, the valve core retreats, expanding the air flux, thereby ensuring the supply of subsequent pressure, and utilizing a safety cooperation mechanism to cooperate with the rotating valve core, so that when the pressure at the high-pressure end is insufficient, the rotating valve core cannot be completely reset by the pressure transmission reset mechanism, and when the rotating valve core cannot be completely reset, the safety cooperation mechanism will limit the position of the impact block to avoid insufficient pressure when firing again. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0018] Figure 1 It is a schematic diagram of the internal structure of a valve body mechanism of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0019] Figure 2 It is a schematic diagram of the exploded structure of a valve body mechanism of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0020] Figure 3 It is a schematic diagram of the transmission inner hole structure of a rotating valve core in an initial state of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0021] Figure 4 A top view of a swing lever of an embodiment of a pressure-stabilizing and regulating valve of the present invention in an initial state;

[0022] Figure 5 It is a schematic structural diagram of a pressure transmission and reset mechanism of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0023] Figure 6 It is a structural schematic diagram of an initial state of a swing lever of an embodiment of a pressure-stabilizing regulating valve of the present invention;

[0024] Figure 7 It is a schematic diagram of the transmission inner hole structure of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0025] Figure 8 It is a schematic structural diagram of a second torsion limit block of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0026] Fig. 9 It is a structural schematic diagram of a pressure-stabilizing and regulating valve according to an embodiment of the present invention when a swing lever is in a flipping state;

[0027] Fig.10 It is a left sectional view of a safety matching mechanism of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0028] Fig.11 It is a schematic diagram of the structure of the first torsion extrusion groove of an embodiment of a pressure-stabilizing and regulating valve of the present invention;

[0029] Fig.12 It is a left side cross-sectional view of a pressure transmission and reset mechanism of an embodiment of a pressure stabilizing and regulating valve of the present invention;

[0030] Fig.13 It is a left side cross-sectional view of a transmission inner hole of an embodiment of a pressure-stabilizing and regulating valve of the present invention.

[0031] In the figure: 1. valve body mechanism; 2. sealing mechanism; 3. torsion mechanism; 4. pressure transmission reset mechanism; 5. knocking mechanism; 6. striker; 7. insurance matching mechanism; 11. valve body; 12. air outlet; 13. rotating valve core; 14. transmission inner hole; 21. sealing ring; 22. air hole; 31. first torsion limit block; 32. first torsion extrusion groove; 33. torsion reset spring; 41. side cavity; 42. torsion groove; 51. impact block; 52. limit slider; 53. limit slide groove; 54. slide column; 55. second torsion limit block; 56. second torsion limit groove; 71. swing rod; 72. resistance rod; 73. adjustment rod; 74. hand-tightening nut; 75. insurance block; 76. resistance block; 77. release groove. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0033] An embodiment of a pressure-stabilizing and regulating valve of the present invention is as follows Figures 1 to 13 As shown, it includes a valve body mechanism 1 for controlling the on-off of gas transmission, a twisting mechanism 3 for twisting and adjusting the valve body mechanism 1, and a pressure transmission reset mechanism 4 for ensuring the driving pressure of the valve body mechanism 1. The valve body mechanism 1 includes a valve body 11 and a rotating valve core 13. The valve body 11 is a cylindrical structure. The rotating valve core 13 is movably installed inside the valve body 11. A sealing mechanism 2 matching the rotating valve core 13 is installed at the air inlet end of the valve body 11. A twisting mechanism 3 is arranged between the outside of the rotating valve core 13 and the inner wall of the valve body 11. The pressure transmission reset mechanism 4 is installed inside the valve body 11. A knocking mechanism 5 is installed at one end of the rotating valve core 13 away from the sealing mechanism 2. A safety matching mechanism 7 is arranged at one end of the rotating valve core 13 away from the twisting mechanism 3 and located on the inner wall of the valve body 11. The safety matching mechanism 7 is used to prevent the knocking mechanism 5 from driving the rotating valve core 13 to open when the pressure at the gas source end is insufficient;

[0034] A transmission inner hole 14 is formed inside the rotary valve core 13. The transmission inner hole is T-shaped in the main viewing direction and V-shaped in the side viewing direction. In this embodiment, the upward opening of the transmission inner hole 14 is at an angle of 45° to the horizontal plane. An air outlet 12 is formed on the top of the valve body 11. The opening of one end of the transmission inner hole 14 corresponds to one side of the sealing mechanism 2, and the opening of the other end of the transmission inner hole 14 corresponds to the air outlet 12. When the rotary valve core 13 is in the initial state, the upper end opening of the transmission inner hole 14 is staggered from the air outlet 12. When the rotary valve core 13 is in the open state, the upper end opening of the transmission inner hole 14 coincides with the air outlet 12. The rotary valve The core 13 is rotated and slidably connected in the valve body 11 through the torsion mechanism 3 and the knocking mechanism 5. The knocking mechanism 5 cooperates with the striker 6 on the side away from the rotating valve core 13. The power source of the striker 6 comes from the trigger (not shown). The sealing mechanism 2 includes a sealing ring 21. The sealing ring 21 is formed with an air hole 22 that cooperates with the transmission inner hole 14 for ventilation. The sealing ring 21 and the transmission inner hole 14 are not connected in the initial state. When the rotating valve core 13 is in the initial state, the inlet of the transmission inner hole 14 is staggered with the air hole 22. When the rotating valve core 13 is in the open state, the transmission inner hole 14 is connected with the air hole 22 (such as Figure 3 as shown).

[0035] In this embodiment, if Figure 2As shown, the torsion mechanism 3 includes a first torsion limit block 31, two first torsion limit blocks 31 are symmetrically mounted on the side of the rotating valve core 13, and a first torsion extrusion groove 32 matching the first torsion limit block 31 is formed on the valve body 11. Fig.11 As shown, the first torsion extrusion groove 32 is divided into a smooth torsion portion, a transition portion, and a separation torsion portion. The rotary valve core 13 slides inside the first torsion extrusion groove 32 through the first torsion limit block 31, so that the first torsion limit block 31 rotates first and then slides to the side away from the sealing ring 21 during the torsion process. A torsion return spring 33 is arranged between the outside of the center part of the rotary valve core 13 and the valve body 11.

[0036] In this embodiment, if Figure 8 As shown, the knocking mechanism 5 includes an impact block 51, and a sliding column 54 is installed on the impact block 51 near the end face of the rotating valve core 13. A column groove matching the sliding column 54 is formed on the rotating valve core 13, and two second torsion limit blocks 55 are symmetrically arranged on the side of the sliding column 54. The column groove of the rotating valve core 13 is symmetrically formed with a second torsion limit groove 56 matching the second torsion limit block 55.

[0037] In this embodiment, if Figure 2 As shown, a plurality of limit sliders 52 are evenly arranged on the outside of the impact block 51, and a limit slot 53 is formed on the inner wall of the rotating valve core 13 corresponding to the limit slider 52. The length of the limit slot 53 is greater than the limit slider 52, thereby limiting the activity area of ​​the limit slider 52 and the impact block 51.

[0038] In this embodiment, if Figure 4 , Fig.10 As shown, the safety cooperation mechanism 7 includes a swing rod 71, which is connected to the rotating valve core 13 through a pin shaft, and a safety block 75 is formed on the inner side of the swing rod 71 near the impact block 51. A release groove 77 is formed on the rotating valve core 13 corresponding to the safety block 75, and a resistance block 76 is formed on the side of the swing rod 71 corresponding to the rotating valve core 13. A resistance adjustment component is provided on the side of the swing rod 71 away from the rotating valve core 13, and the swing rod 71 is made of elastic copper sheet.

[0039] In this embodiment, the pressure transmission reset mechanism 4 includes a side cavity 41, such as Figure 5 As shown, the side cavity 41 is arranged inside the valve body 11, and the air inlet end of the side cavity 41 is located on the side of the sealing ring 21 away from the rotating valve core 13, and the air outlet end of the side cavity 41 corresponds to the rotating valve core 13. When the rotating valve core 13 is in the initial state, a torsion groove 42 is formed at the position corresponding to the air outlet end of the side cavity 41.

[0040] In this embodiment, when the rotary valve core 13 is in the initial state, the angle between the first torsion limit block 31 and the horizontal end surface is 45°.

[0041] In this embodiment, the resistance adjustment assembly includes a resistance rod 72, which is slidably mounted on an adjustment rod 73. The adjustment rod 73 is connected to the valve body 11 through a threaded connection. The adjustment rod 73 penetrates the valve body 11, and a hand-tightened nut 74 is installed on the outside of the adjustment rod 73. A pressure spring is arranged between the inside of the adjustment rod 73 and the adjustment rod 73, and scale lines are arranged on the outside of the adjustment rod 73.

[0042] In this embodiment, if Fig.10 As shown, the release groove 77 is an arc groove, and the arc angle of the release groove 77 is 45°. The width of the release groove 77 is greater than the resistance block 76. When the rotary valve core 13 is in the initial state, the release groove 77 does not cooperate with the resistance block 76.

[0043] In this embodiment, the second torsion limiting groove 56 is a spiral structure, and the curvature of the second torsion limiting groove 56 is the same as the curvature of the separation torsion portion on the first torsion extrusion groove 32 .

[0044] The working principle is as follows. In order to ensure portability, the existing air guns are generally equipped with external high-pressure gas cylinders, while the present device is installed at the high-pressure gas cylinder of the air gun. At the same time, in order to observe and adjust the initial state and pressure of the high-pressure gas cylinder, a pressure gauge (not shown) is installed between the present device and the gas cylinder, so as to facilitate the adjustment of the supply pressure and the observation of the pressure. The tail of the valve body 11 is equipped with a high-pressure gas cylinder. In the initial state, the trigger does not fire the firing pin 6. At this time, the rotating valve core 13 is in the initial state, such as Figure 1 As shown, the air inlet end of the transmission inner hole 14 is closed by the sealing ring 21, the transmission inner hole 14 is not conductive, and the high-pressure gas cannot be transmitted to the gun barrel (not shown) connected to the outside of the gas outlet 12 through the transmission inner hole 14. The "pressure gauge" and "gun barrel" recorded in this application are well-known technologies in the technical field, so their working principles and detailed structures are not described, and they are only described here without limitation;

[0045] When the trigger is pulled, the firing pin 6 is released. At this time, the kinetic energy of the firing pin 6 impacts the impact block 51, causing the impact block 51 to move toward the side of the rotating valve core 13. At the same time, the impact block 51 drives the slide column 54 to shrink toward the inside of the rotating valve core 13. The slide column 54 squeezes the second torsion limit block 55, causing the rotating valve core 13 to rotate. When the rotating valve core 13 rotates as a whole, the first torsion limit block 31 will first pass through the smooth torsion portion of the first torsion extrusion groove 32. At this time, the impact block 51 moves toward the rotating valve core 13, while the rotating valve core 13 only rotates. The release groove 77 on the rotating valve core 13 is also driven to rotate the corresponding resistance block 76. Because the impact block 51 has moved to the tail of the safety block 75, even if the swing rod 71 and the safety block 75 are released at this time, it will not prevent the impact block 51 from continuing to move toward the rotating valve core 13.

[0046] When the rotary valve core 13 continues to rotate through the transition portion and reaches the separation torsion portion, the first torsion limit block 31 is squeezed by the first torsion extrusion groove 32 and begins to move toward the impact block 51. The impact block 51 and the rotary valve core 13 approach each other. At the same time, during the rapid rotation of the rotary valve core 13, high-pressure gas enters through the opening of the transmission inner hole 14 and flows out from the upper part of the transmission inner hole 14. Because the upper opening of the transmission inner hole 14 corresponds to the air outlet 12 after the rotary valve core 13 rotates, the high-pressure gas flows out instantly to provide kinetic energy for the bullet and complete the firing operation. In this process, the firing end, i.e., one end of the rotary valve core 13, can be opened without first resisting the high-pressure gas as in the prior art. Therefore, the gas channel, i.e., the transmission inner hole 14, can be opened quickly, thereby ensuring the firing efficiency.

[0047] After firing, the firing pin 6 and the impact block 51 lose kinetic energy, and the torsion return spring 33 provides kinetic energy for the rotating valve core 13, causing the rotating valve core 13 to reversely reverse. When the first torsion limit block 31 reversely returns and twists to the smooth torsion portion of the first torsion extrusion groove 32, at this time, because the release groove 77 on the rotating valve core 13 also needs to resist the resistance block 76, the swing rod 71 is prompted to flip open. Although the safety block 75 was supported by the impact block 51 before, the spring inside the adjusting rod 73 prompts the resistance rod 72 to squeeze the swing rod 71, so that the center part of the swing rod 71 and the resistance block 76 are pressed on the inside of the release groove 77. When the rotating valve core 13 is reset, the resistance block 76 is released from the inside of the release groove 77. When the air is released, the rotary valve core 13 needs to overcome the potential energy of the spring inside the regulating rod 73 so that the rotary valve core 13 can continue to rotate. When the swing rod 71 needs to overcome the potential energy to open, the high-pressure gas reaches the tail of the torsion groove 42 through the side cavity 41. When the high-pressure gas pressure is sufficient, it can provide pressure for the torsion groove 42. At this time, because the top of the transmission inner hole 14 has reversed rotation, the air outlet at the top of the transmission inner hole 14 is staggered with the air outlet 12, and the exhaust will not continue, that is, the reverse reset pressure is provided for the rotary valve core 13, so that the rotary valve core 13 is completely reset. When the pressure at the high-pressure end is insufficient, the rotary valve core 13 cannot be completely reset, and at this time the impact block 51 has been reversely pushed to the left side of the safety block 75 (such as Figure 4 As shown in the figure, the resistance block 76 also fails to break free from the release groove 77. Even if the trigger is pulled at this time, the impact block 51 will not move laterally to fire the rotating valve core 13, thereby avoiding the problem in the prior art that although the bullet can be fired when the pressure is insufficient, the high-pressure gas cannot guarantee the firing effect of the bullet, thereby affecting the shooting effect.

[0048] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A pressure regulating valve, characterized in that: The invention comprises a valve body mechanism (1) for controlling the on-off of gas transmission, a torsion mechanism (3) for torsionally adjusting the valve body mechanism (1), and a pressure transmission reset mechanism (4) for ensuring the driving pressure of the valve body mechanism (1), wherein the valve body mechanism (1) comprises a valve body (11) and a rotating valve core (13), wherein the valve body (11) is a cylindrical structure, the rotating valve core (13) is movably installed inside the valve body (11), the air inlet end of the valve body (11) is installed with a sealing mechanism (2) cooperating with the rotating valve core (13), and the rotating valve core (13) is A torsion mechanism (3) is arranged between the outside and the inner wall of the valve body (11), the pressure transmission reset mechanism (4) is installed inside the valve body (11), a knocking mechanism (5) is installed in cooperation with the end of the rotary valve core (13) away from the sealing mechanism (2), and a safety matching mechanism (7) is arranged on the inner wall of the valve body (11) at the end of the outside of the rotary valve core (13) away from the torsion mechanism (3), and the safety matching mechanism (7) is used to prevent the knocking mechanism (5) from driving the rotary valve core (13) to open when the pressure at the air source end is insufficient; A transmission inner hole (14) is formed inside the rotary valve core (13), and an air outlet hole (12) is formed on the top of the valve body (11). One end opening of the transmission inner hole (14) corresponds to one side of the sealing mechanism (2), and the other end opening of the transmission inner hole (14) corresponds to the air outlet hole (12). The rotary valve core (13) is rotatably and slidably connected in the valve body (11) through the twisting mechanism (3) and the knocking mechanism (5). The sealing mechanism (2) includes a sealing ring (21). An air hole (22) is formed on the sealing ring (21) to cooperate with the transmission inner hole (14) for air permeability. The sealing ring (21) and the transmission inner hole (14) are not connected in an initial state. The knocking mechanism (5) comprises an impact block (51), and the safety matching mechanism (7) comprises a swing rod (71). The swing rod (71) is connected to the rotating valve core (13) via a pin shaft, and a safety block (75) is formed on the inner side of the swing rod (71) at one end close to the impact block (51), and a release groove (77) is formed on the rotating valve core (13) corresponding to the safety block (75). A resistance block (76) is formed on one side of the swing rod (71) corresponding to the rotating valve core (13), and a resistance adjustment component is arranged on the side of the swing rod (71) away from the rotating valve core (13). The swing rod (71) is made of elastic copper sheet.

2. A pressure-stabilizing and regulating valve according to claim 1, characterized in that: The torsion mechanism (3) comprises a first torsion limit block (31), two of the first torsion limit blocks (31) are symmetrically mounted on the side of the rotating valve core (13), a first torsion extrusion groove (32) cooperating with the first torsion limit block (31) is formed on the valve body (11), the first torsion extrusion groove (32) is divided into a smooth torsion portion, a transition portion, and a separation torsion portion, the rotating valve core (13) slides inside the first torsion extrusion groove (32) through the first torsion limit block (31), so that the first torsion limit block (31) first rotates and then slides to a side away from the sealing ring (21) during the torsion process, and a torsion return spring (33) is arranged between the outer portion of the central portion of the rotating valve core (13) and the valve body (11).

3. A pressure-stabilizing and regulating valve according to claim 2, characterized in that: A sliding column (54) is installed on the impact block (51) near the end surface of the rotary valve core (13); a column groove matching the sliding column (54) is formed on the rotary valve core (13); two second torsion limit blocks (55) are symmetrically arranged on the side of the sliding column (54); and a second torsion limit groove (56) matching the second torsion limit block (55) is symmetrically formed on the column groove of the rotary valve core (13).

4. A pressure-stabilizing and regulating valve according to claim 3, characterized in that: A plurality of limit slide blocks (52) are evenly arranged outside the impact block (51), and a limit slide groove (53) is formed on the inner wall of the rotary valve core (13) corresponding to the limit slide block (52), and the limit slide groove (53) is longer than the limit slide block (52), thereby limiting the movable area of ​​the limit slide block (52) and the impact block (51).

5. The pressure-stabilizing and regulating valve according to claim 1, characterized in that: The pressure transmission reset mechanism (4) comprises a side cavity (41), wherein the side cavity (41) is arranged inside the valve body (11), and an air inlet end of the side cavity (41) is located on a side of the sealing ring (21) away from the rotating valve core (13), and an air outlet end of the side cavity (41) corresponds to the rotating valve core (13), and a torsion groove (42) is formed at a position corresponding to the air outlet end of the side cavity (41) when the rotating valve core (13) is in an initial state.

6. A pressure-stabilizing and regulating valve according to claim 2, characterized in that: When the rotary valve core (13) is in the initial state, the angle between the first torsion limit block (31) and the horizontal end surface is 45°.

7. The pressure-stabilizing and regulating valve according to claim 1, characterized in that: The resistance adjustment assembly comprises a resistance rod (72), the resistance rod (72) being slidably mounted on an adjustment rod (73), the adjustment rod (73) being connected to the valve body (11) via a thread, the adjustment rod (73) penetrating the valve body (11), a hand-tightened nut (74) being mounted on the outside of the adjustment rod (73), a pressure spring being arranged inside the adjustment rod (73) and between the adjustment rod (73), and a scale line being arranged on the outside of the adjustment rod (73).

8. A pressure-stabilizing and regulating valve according to claim 7, characterized in that: The release groove (77) is an arc-shaped groove, and the arc angle of the release groove (77) is 45 degrees. The width of the release groove (77) is greater than the resistance block (76). When the rotary valve core (13) is in an initial state, the release groove (77) does not cooperate with the resistance block (76).

9. The pressure-stabilizing and regulating valve according to claim 3, characterized in that: The second torsion limiting groove (56) is a spiral structure, and the curvature of the second torsion limiting groove (56) is the same as the curvature of the separation torsion portion on the first torsion extrusion groove (32).

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