Regulating valve capable of reducing friction between valve element and valve body

Abstract

The utility model belongs to the technical field of regulating valves, and particularly relates to a regulating valve capable of reducing friction between a valve core and a valve body, which comprises the valve body and a valve core seat, the valve core seat is arranged in the valve body, a valve rod is slidably arranged on the valve core seat, the bottom of the valve rod is connected with a connecting disc, the valve core is arranged below the connecting disc, and a sealing wall is arranged on the outer circular surface of the valve core. Lubricating adjusting assemblies are arranged inside and outside the valve element. The lubrication adjusting assembly is arranged in the valve element, so that in the process that the valve element slides upwards to open the valve element seat, a liquid lubrication layer can be formed between the valve element and the valve element seat through high-pressure liquid at the water inlet, friction force between the valve element and the valve body is rapidly reduced, the valve element can move smoothly, and the service life of the valve element is prolonged. And when the valve element moves downwards for sealing, part of liquid can be stored, so that the stability of the valve element is improved, and safe operation of a pipeline is effectively guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of regulating valves, and in particular relates to a regulating valve capable of reducing friction between a valve core and a valve body. Background Art

[0002] Pneumatic control valve uses compressed gas as power source, cylinder as actuator, and with the help of valve positioner, converter, solenoid valve, holding valve, gas tank, gas filter and other accessories to drive the valve, realize switch quantity or proportional regulation, receive control signal from industrial automation control system to complete the regulation of pipeline medium. The existing pneumatic control valve technology is relatively mature and can ensure the control accuracy of valve body.

[0003] For example, my country's patent CN202223509199.X discloses a pneumatic regulating valve, including a valve body, a valve core is arranged inside the valve body, and the upper end of the valve stem penetrates the valve body and is connected to the push rod, and a pneumatic actuator is arranged on the top of the push rod, and a valve cover is screwed on the upper surface of the valve body; and further comprising: a first sealing ring is fixed inside the connecting plate near one end of the valve body, and a clamping rod is slidably connected inside the upper and lower surfaces of the connecting plate, and a reset spring is sleeved on the outer side of the clamping rod, and one end of the clamping rod is inserted into the clamping groove. The pneumatic regulating valve uses the clamping groove, the first clamping block and the second clamping block to replace the Farah screw installation structure with a sliding clamping structure, thereby making the installation process simpler and convenient for later disassembly, and through the ball set in the valve cover, the friction of the push rod is reduced by the ball, so that the push rod can be more rapid when executing the air pressure signal, thereby improving the accuracy of the pneumatic regulating valve.

[0004] The prior art reduces the friction of the push rod movement by arranging a ball in the valve cover, so that the push rod can complete the work more quickly and the valve body accuracy is improved. However, there are still certain deficiencies during use: under high-pressure conditions, the valve core of the existing regulating valve will be in closer contact with the valve core seat under the action of the water inlet pressure, causing a greater friction between the two, so that multiple times the force is required to open and close the valve core, resulting in the valve core being unable to move up and down smoothly, while shortening the service life of the valve core seat and the valve core, seriously affecting the safe operation of the pipeline. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a regulating valve that can reduce the friction between the valve core and the valve body. The utility model sets a lubrication regulating component in the valve core, so that when the valve core slides upward to open the valve core seat, the high-pressure liquid at the water inlet can be used to form a liquid lubrication layer between the valve core and the valve core seat, so that the friction between the valve core and the valve body is quickly reduced, so that the valve core can move smoothly, and part of the liquid can be stored when the valve core moves downward to seal, so that the stability of the valve core is improved, and the safe operation of the pipeline is effectively guaranteed.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a regulating valve capable of reducing the friction between a valve core and a valve body, comprising a valve body and a valve core seat, wherein a valve core seat is arranged in the valve body, a valve stem is slidably arranged on the valve core seat, a connecting plate is connected to the bottom of the valve stem, a valve core is arranged below the connecting plate, a sealing wall is arranged on the outer circumferential surface of the valve core, and a lubrication regulating assembly is arranged inside and outside the valve core; the sealing wall is made of traditional sealing material, which is a prior art and will not be elaborated in this article.

[0007] The lubrication adjustment assembly includes a plurality of trumpet ports arranged on the end surface of the valve core and opened when the connecting plate moves upward, a first liquid tank is arranged in communication with the valve core below the trumpet port, a second liquid tank is arranged in communication with the valve core below the first liquid tank, a plurality of liquid-passing tanks are arranged uniformly in communication with the valve core along the circumferential direction outside the second liquid tank, a plurality of annular openings are arranged uniformly in the circumferential direction on the outer circumferential surface of the valve core outside the liquid-passing tank, and a liquid-spraying port is arranged in communication with the wall surface of the liquid-passing tank in each of the annular openings. The plurality of annular openings uniformly distributed on the outer circumferential surface of the valve core can prevent the outer end surface of the liquid-spraying port from directly contacting the inner wall surface of the valve core seat, so that the liquid-spraying port will not be blocked, and if the friction between the valve core and the valve core seat becomes abnormally large, the liquid sprayed from the liquid-spraying port cannot flow on the contact surface between the sealing wall and the valve core seat, the high-pressure liquid can also gather at the plurality of annular openings and contact the inner wall surface of the valve core seat, and the plurality of annular openings can also reduce the overall friction to a certain extent, so that the valve core moves upward smoothly.

[0008] Preferably, a valve seat is provided on the top end surface of the valve body, a valve cover is detachably provided on the top of the valve seat, a pneumatic actuator is connected to the top of the valve cover, a push rod is slidably provided at the bottom of the pneumatic actuator in the valve cover, and one end of the bottom of the push rod is on the top end surface of the valve stem. The pneumatic actuator is a prior art and will not be elaborated in detail herein, and will drive the valve core to move up and down, thereby driving the valve core to move up and down.

[0009] Preferably, a first pipe opening is provided on one end surface of the valve body, and a second pipe opening is provided on the other end surface of the valve body. The first pipe opening is a liquid inlet pipe opening, and the second pipe opening is a liquid outlet pipe opening.

[0010] Preferably, a plurality of first ball bearing plates are arranged on the inner wall of the valve cover outside the push rod, and a plurality of first balls in contact with the outer circumferential surface of the push rod are rotatably arranged in each of the first ball bearing plates. The arrangement of the plurality of first ball bearing plates and the first balls can reduce the friction between the push rod and the valve cover, thereby improving the movement accuracy of the valve core.

[0011] Preferably, the lubrication adjustment assembly further comprises a connecting rod connected to the bottom end surface of the connecting plate, one end of the bottom of the connecting rod passes through the bell mouth and extends into the first liquid bin, and one end of the connecting rod extending into the first liquid bin is connected to a mesh plate, and a conical piece matching the bell mouth is provided on the outer circumference of the connecting rod above the mesh plate. After the mesh plate abuts against the top end surface of the first liquid bin, the bell mouth can still be filled with liquid, and the setting of the conical piece enables the bell mouth to be sealed immediately when the valve core moves downward to prepare for sealing.

[0012] Preferably, the lubrication adjustment component further comprises a liquid-through cone seat having a plurality of holes disposed at the bottom of the first liquid bin, and a connecting pipe port is disposed in the liquid-through cone seat on the top end surface of the second liquid bin. The design of the liquid-through cone seat and the connecting pipe port prevents the internal liquid from flowing randomly when the valve core moves downward, and can immediately open the liquid spray port when the valve core moves upward, so that the friction force adjustment speed can be guaranteed.

[0013] Preferably, the lubrication adjustment assembly further comprises an annular groove arranged on the top end surface of the valve core, and a sealing ring is arranged on the bottom end surface of the connecting plate above the annular groove. The arrangement of the annular groove and the sealing ring enables a secondary sealing process to be formed outside the bell mouth when the valve core is sealed with the sealing seat.

[0014] Preferably, a guide groove is provided on the outer circumferential surface of the valve stem, a sealing plate is provided on the bottom end surface of the valve seat above the guide groove, and a guide plate matching the guide groove is provided on the sealing plate. The arrangement of the guide groove and the guide plate ensures that the valve core can still move stably even when the liquid pressure at the first pipe port is relatively high, thereby effectively ensuring the movement accuracy.

[0015] In summary, compared with the prior art, the beneficial effects of this solution are:

[0016] The utility model adopts the designs of mesh plate, trumpet pipe orifice, annular opening and liquid spraying port, so that when the valve core moves upward to open the valve core seat, the high-pressure liquid at the liquid inlet can be used to form a liquid lubrication layer on the contact surface between the sealing wall and the valve core seat, which effectively reduces the friction between the two and ensures that the valve core can accurately and quickly complete the opening and closing process;

[0017] The utility model adopts the design of the liquid inlet cone seat and the connecting pipe mouth, the sealing ring and the conical piece, so that when the valve core moves downward to seal, the bell pipe mouth can be quickly and effectively sealed, and a part of the liquid can be stored inside the valve core, so that the subsequent lubrication speed can be guaranteed, the stability of the valve core can be improved, and the sealing effect of the regulating valve can be guaranteed. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of the utility model;

[0019] Figure 2 It is a top view of the utility model;

[0020] Figure 3 for Figure 2 Stereoscopic cross-sectional view at AA in the middle;

[0021] Figure 4 for Figure 2 Plane section view at the middle BB;

[0022] Figure 5 It is a three-dimensional diagram of the valve stem parts;

[0023] Figure 6 It is a three-dimensional diagram of the valve core parts;

[0024] Figure 7 for Figure 3 A partial enlarged view of point B in the middle;

[0025] Figure 8 for Figure 4 A partial enlarged view of point C in the middle;

[0026] In the figure: valve body 10, first pipe opening 11, second pipe opening 12, valve cover 13, pneumatic actuator 14, valve seat 15, push rod 16, valve stem 17, valve core seat 18, guide groove 19, guide plate 20, sealing plate 21, first ball plate 22, first ball 23, valve core 24, connecting plate 25, first liquid bin 26, second liquid bin 27, sealing ring 28, conical sheet 29, connecting rod 30, mesh plate 31, trumpet pipe opening 32, annular opening 33, liquid spraying port 34, annular groove 35, liquid passing bin 36, sealing wall 37, liquid passing cone seat 38, connecting pipe opening 39. DETAILED DESCRIPTION

[0027] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0028] Embodiment 1:

[0029] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7 As shown, a regulating valve capable of reducing friction between a valve core and a valve body comprises a valve body 10 and a valve core seat 18. The valve core seat 18 is arranged in the valve body 10, a valve stem 17 is slidably arranged on the valve core seat 18, a connecting plate 25 is connected to the bottom of the valve stem 17, a valve core 24 is arranged below the connecting plate 25, a sealing wall 37 is arranged on the outer circumferential surface of the valve core 24, and lubrication regulating components are arranged inside and outside the valve core 24;

[0030] The lubrication adjustment component includes a plurality of bell-shaped pipe openings 32 arranged on the end surface of the valve core 24 and opened when the connecting plate 25 moves upward. A first liquid tank 26 is arranged below the bell-shaped pipe opening 32 and connected to the valve core 24. A second liquid tank 27 is arranged below the first liquid tank 26 and connected to the valve core 24. A plurality of liquid-passing tanks 36 are arranged outside the second liquid tank 27 and are connected to the valve core 24 in a circumferential direction. A plurality of annular openings 33 are arranged outside the liquid-passing tank 36 and are evenly connected to the outer circumferential surface of the valve core 24. A liquid spray port 34 is arranged inside each annular opening 33 and is connected to the wall surface of the liquid-passing tank 36.

[0031] The valve core 24 adjusts the closing and opening of the valve core seat 18 through the sealing wall 37. When the connecting disk 25 moves upward to pull the valve core 24 upward to open the valve core seat 18, the valve core 24 will open the bell mouth 32, so that the liquid at the liquid inlet can enter the first liquid tank 26 and the second liquid tank 27 through the bell mouth 32. The liquid tank 36 will introduce the liquid in the second liquid tank 27 and then spray it onto the outer circular surface of the sealing wall 37 and the inner circular surface of the valve core seat 18 through the liquid spray port 34. The sprayed liquid will form a lubricant effect between the two, so that the contact friction between the two is reduced, so that the valve core 24 can be quickly pulled out. In this relationship, when the connecting disk 25 moves downward to insert the valve core 24 into the valve core seat 18, multiple bell mouths 32 will be closed, thereby ensuring the friction during sealing and ensuring that the sealing and fastening effect is not affected.

[0032] like Figure 1 and Figure 3 As shown, a first pipe opening 11 is arranged on one end surface of the valve body 10 , and a second pipe opening 12 is arranged on the other end surface of the valve body 10 .

[0033] The first pipe opening 11 is a liquid inlet pipe opening, and the second pipe opening 12 is a liquid outlet pipe opening. Flange connection ends are arranged on the outer end surfaces of the first pipe opening 11 and the second pipe opening 12, so that they can be quickly installed.

[0034] like Figure 1 , Figure 3 and Figure 4As shown, a valve seat 15 is provided on the top end face of the valve body 10, a valve cover 13 is removably provided on the top of the valve seat 15, a pneumatic actuator 14 is connected to the top of the valve cover 13, a push rod 16 is slidably provided at the bottom of the pneumatic actuator 14 in the valve cover 13, and one end of the bottom of the push rod 16 is connected to the top end face of the valve stem 17.

[0035] The pneumatic actuator 14 pushes the push rod 16, thereby driving the valve stem 17 at the bottom and the connecting plate 25 at the bottom of the valve stem 17 to move up and down, thereby adjusting the valve core 24 at the bottom of the connecting plate 25 to move up and down, thereby adjusting the flow switch and flow speed.

[0036] like Figure 4 and Figure 8 As shown, a plurality of first ball plates 22 are arranged on the inner wall of the valve cover 13 outside the push rod 16 , and a plurality of first balls 23 contacting the outer circumferential surface of the push rod 16 are rotatably arranged in each first ball plate 22 .

[0037] The plurality of first balls 23 in contact with the outer circumferential surface of the push rod 16 can reduce the friction force when the push rod 16 moves up and down, so that the valve core 24 can move more smoothly.

[0038] like Figure 3 and Figure 7 As shown, the lubrication adjustment assembly also includes a liquid conical seat 38 with multiple holes arranged at the bottom of the first liquid bin 26, and a connecting pipe port 39 is arranged in the liquid conical seat 38 on the top end surface of the second liquid bin 27.

[0039] A plurality of holes for liquid inlet are arranged on the conical surface at the bottom of the liquid-passing cone seat 38, and the top pipe opening of the connecting pipe opening 39 is arranged at the top inside the liquid-passing cone seat 38, so that when the liquid in the first liquid tank 26 needs to enter the second liquid tank 27, it needs to flow to the top inside the liquid-passing cone seat 38, and then flow into the second liquid tank 27 from the pipe opening at the top of the connecting pipe opening 39. On the one hand, this arrangement prevents the liquid in the second liquid tank 27 from flowing back outward when the valve core 24 is closed, so that there is always a certain amount of water in the second liquid tank 27, which can flow quickly when the valve core 24 is opened next time. On the other hand, when the valve core 24 is closed, part of the liquid originally stored in the first liquid tank 26 will not flow into the second liquid tank 27 at will without pressure, so that the liquid-passing tank 36 and the liquid spraying port 34 outside the second liquid tank 27 will not be squeezed out of the liquid under pressure.

[0040] Further, such as Figure 5 , Figure 6 and Figure 7As shown, the lubrication adjustment assembly also includes a connecting rod 30 connected to the bottom end face of the connecting plate 25, one end of the bottom of the connecting rod 30 passes through the bell-shaped pipe mouth 32 and extends into the first liquid tank 26, and one end of the connecting rod 30 extending into the first liquid tank 26 is connected to a mesh plate 31, and a conical piece 29 that cooperates with the bell-shaped pipe mouth 32 is arranged on the outer circular surface of the connecting rod 30 above the mesh plate 31.

[0041] When the connecting rod 30 moves upward, the mesh plate 31 will fit against the top end surface of the first liquid tank 26 through the top end surface, thereby pulling the valve core 24 to move upward. However, the length of the connecting rod 30 is longer than the length of the bell mouth 32, and the liquid can still flow into the first liquid tank 26 through the bell mouth 32. In this relationship, when the connecting rod 30 is driven and pressed downward by the connecting plate 25, the conical piece 29 will also move downward, and the conical piece 29 will contact the conical surface of the bell mouth 32, thereby sealing the bell mouth 32.

[0042] Further, such as Figure 5 , Figure 6 and Figure 7 As shown, the lubrication adjustment assembly further includes an annular groove 35 disposed on the top end surface of the valve core 24 , and a sealing ring 28 is disposed on the bottom end surface of the connecting plate 25 above the annular groove 35 .

[0043] The arrangement of the annular groove 35 and the sealing ring 28 enables the connecting disk 25 to be pressed downward, and when the valve core 24 is pressed back into the valve core seat 18, a secondary sealing treatment will be formed outside the multiple bell mouths 32, thereby preventing liquid from flowing into the bell mouths 32 and ensuring that the valve core 24 can stably seal the valve core seat 18.

[0044] Before the regulating valve works, the staff connects the first pipe port 11 to the liquid inlet pipe port and the second pipe port 12 to the liquid outlet pipe port, and then starts the regulating valve to control the liquid flow.

[0045] When the regulating valve needs to open the valve core seat 18 or increase the regulating flow, the pneumatic actuator 14 will drive the push rod 16 to move upward, thereby driving the valve stem 17 on the bottom end face of the push rod 16 to move upward, thereby driving the connecting plate 25 at the bottom of the valve stem 17 to move upward. The upward movement of the connecting plate 25 will first pull the connecting rod 30 and the sealing ring 28 upward, first opening the seal between the sealing ring 28 and the annular groove 35, so that the high-pressure liquid at the first pipe opening 11 can be squeezed onto the bell pipe opening 32, and in this process, the movement of the connecting rod 30 will also drive the mesh plate 31 and the conical piece 29 to move upward, and the movement of the conical piece 29 will open the bell pipe opening 32, and then the top of the mesh plate 31 will be attached to the top end face of the first liquid tank 26. At this time, the bell pipe opening 32 is fully opened, and the high-pressure liquid will flow into the first liquid tank 26.

[0046] The liquid flowing into the first liquid tank 26 will enter the liquid conical seat 38 through the multiple holes at the bottom of the liquid conical seat 38. When the liquid flows to the top of the connecting pipe port 39, it will flow into the second liquid tank 27 through the connecting pipe port 39. The second liquid tank 27 will be poured into the liquid tank 36 through multiple pipes. When a large amount of high-pressure liquid flows into the liquid tank 36, the multiple liquid spray ports 34 will open, thereby spraying the liquid on the annular opening 33 so that the liquid can flow to the contact surface between the sealing wall 37 and the valve core seat 18, thereby acting as a lubricant, reducing the friction between the valve core 24 and the valve core seat 18, and making it easy for the valve core 24 to move upward for adjustment.

[0047] When the plurality of liquid spraying ports 34 have basically sprayed liquid, the mesh plate 31 abutting against the top of the first liquid bin 26 will also pull the valve core 24 upward under the action of the connecting plate 25 and the valve stem 17, thereby opening the valve core seat 18 and completing the flow of liquid.

[0048] When the valve core seat 18 needs to be closed, the valve stem 17 pushes downward, so that the connecting plate 25 is pressed downward, and the connecting plate 25 pressed downward will move downward with the connecting rod 30, and the conical piece 29 on the connecting rod 30 will first contact the inner wall of the bell mouth 32, so as to close the bell mouth 32, and then the sealing ring 28 at the bottom of the connecting plate 25 will be inserted into the ring groove 35 at the top of the valve core 24, so as to form a secondary sealing treatment outside the bell mouth 32, so that the liquid at the first mouth 11 will not continue to flow into the bell mouth 32, and the first liquid tank 2 6 and the liquid in the second liquid tank 27 will also lose pressure. When the valve core 24 has not completely entered the valve core seat 18, although a portion of the liquid spray port 34 and the annular opening 33 on the outer surface are exposed to the outside, the liquid pressure on the side of the first pipe port 11 will also cause the liquid in the second liquid tank 27 to be unable to be discharged. Therefore, when the valve core 24 and the sealing wall 37 enter the valve core seat 18 for sealing, a certain amount of liquid will be stored in the second liquid tank 27 and the first liquid tank 26, thereby increasing the weight of the valve core 24 and ensuring the stability of the valve core 24.

[0049] Embodiment 2:

[0050] Based on the first embodiment, a further embodiment is made, such as Figure 4 and Figure 8 As shown, a guide groove 19 is provided on the outer circumferential surface of the valve stem 17 , a sealing plate 21 is provided on the bottom end surface of the valve seat 15 above the guide groove 19 , and a guide plate 20 matching the guide groove 19 is provided on the sealing plate 21 .

[0051] As a further embodiment, the provision of the guide groove 19 and the guide plate 20 improves the stability of the valve stem 17 when it moves up and down, and prevents it from shaking randomly. A plurality of balls are provided in the guide plate 20 to ensure smooth sliding of the valve stem 17. The sealing plate 21 can also prevent liquid from entering the valve seat 15, thereby ensuring the sealing effect.

[0052] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0053] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0054] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A regulating valve capable of reducing friction between a valve core and a valve body, comprising a valve body (10) and a valve core seat (18), characterized in that: A valve core seat (18) is arranged in the valve body (10), a valve stem (17) is slidably arranged on the valve core seat (18), a connecting plate (25) is connected to the bottom of the valve stem (17), a valve core (24) is arranged below the connecting plate (25), a sealing wall (37) is arranged on the outer circumferential surface of the valve core (24), and a lubrication adjustment component is arranged in the valve core (24); The lubrication adjustment component comprises a plurality of bell-shaped pipe openings (32) arranged on the end surface of the valve core (24); a first liquid tank (26) is arranged below the bell-shaped pipe opening (32) and is connected to the valve core (24); a second liquid tank (27) is arranged below the first liquid tank (26) and is connected to the valve core (24); a plurality of liquid-passing tanks (36) are arranged outside the second liquid tank (27) and are connected to the valve core (24); a plurality of liquid-spraying ports (34) are arranged outside the liquid-passing tanks (36) on the outer circumferential surface of the valve core (24).

2. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 1, characterized in that: A valve seat (15) is arranged on the top end surface of the valve body (10), a valve cover (13) is arranged on the top of the valve seat (15), a pneumatic actuator (14) is connected to the top of the valve cover (13), a push rod (16) is slidably arranged at the bottom of the pneumatic actuator (14) in the valve cover (13), and one end of the bottom of the push rod (16) is on the top end surface of the valve stem (17).

3. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 1, characterized in that: A first pipe opening (11) is provided on one end surface of the valve body (10), and a second pipe opening (12) is provided on the other end surface of the valve body (10).

4. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 2, characterized in that: A plurality of first ball bearing plates (22) are arranged on the inner wall of the valve cover (13) outside the push rod (16), and a plurality of first balls (23) are arranged inside the first ball bearing plates (22).

5. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 1, characterized in that: The lubrication adjustment assembly also includes a connecting rod (30) arranged at the bottom of the connecting plate (25), one end of the bottom of the connecting rod (30) passes through the bell-shaped pipe mouth (32) and extends into the first liquid bin (26), one end of the connecting rod (30) extending into the first liquid bin (26) is connected to a mesh plate (31), and a conical piece (29) matching the bell-shaped pipe mouth (32) is arranged on the outer circumferential surface of the connecting rod (30).

6. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 5, characterized in that: The lubrication adjustment assembly also includes a liquid conical seat (38) arranged at the bottom of the first liquid bin (26), and a connecting pipe opening (39) is arranged on the top end surface of the second liquid bin (27) in the liquid conical seat (38).

7. A regulating valve capable of reducing friction between a valve core and a valve body according to claim 6, characterized in that: The lubrication adjustment assembly further comprises an annular groove (35) arranged on the top end surface of the valve core (24), and a sealing ring (28) is arranged on the bottom end surface of the connecting plate (25) above the annular groove (35).

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