Valve structure

Abstract

The valve structure comprises a valve body, a side valve deck, a first sealing piece and a valve element, a first cavity and a second cavity which are independent of each other are formed in the valve body, the two opposite ends of the first cavity are open and form a first open end, the two opposite ends of the second cavity are open and form a second open end, and an inlet and an outlet are formed in the valve body; the inlet is communicated with the first cavity, and the outlet is communicated with the second cavity. Side valve covers are arranged on the two opposite sides of the valve body, flow dividing holes and flow collecting holes are formed in the side valve covers, flow channels communicating the flow dividing holes and the flow collecting holes are formed in the side valve covers, the side valve covers are detachably connected with the valve body and can cover the first open end and the second open end, the flow dividing holes are used for communicating with the first cavity, and the flow collecting holes are used for communicating with the second cavity; and a first sealing piece is arranged between the valve body and the side valve cover. The valve element is movably arranged in the first cavity in the vertical direction, and the end face of the valve element is in sliding contact with the side valve deck.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the technical field of valves, in particular, to a valve structure. BACKGROUND

[0002] In the related art, the valve body of a high-pressure valve is a closed structure formed integrally, and only a through hole for passing fluid is formed on the valve body. When a component (e.g., a valve core) inside the valve body fails, the valve core cannot be removed from the valve body for maintenance through the through hole, and there is a problem of inconvenient maintenance. CONTENT OF THE UTILITY MODEL

[0003] The purpose of the present disclosure is to provide a valve structure to solve the above technical problems.

[0004] In order to achieve the above purpose, the present disclosure provides a valve structure, comprising:

[0005] a valve body having a first cavity and a second cavity inside and independent of each other, the opposite ends of the first cavity are open and constitute a first open end, the opposite ends of the second cavity are open and constitute a second open end, an inlet and an outlet are formed on the valve body, the inlet communicates with the first cavity, and the outlet communicates with the second cavity;

[0006] a side valve cover, the opposite sides of the valve body are provided with the side valve cover, the side valve cover is formed with a shunt hole and a confluence hole, a flow channel communicating the shunt hole and the confluence hole is formed in the side valve cover, the side valve cover is detachably connected with the valve body and can cover the first open end and the second open end, the shunt hole is used for communicating with the first cavity, and the confluence hole is used for communicating with the second cavity;

[0007] a first sealing member arranged between the valve body and the side valve cover;

[0008] a valve core movably arranged in the first cavity in a vertical direction and in sliding contact with the side valve cover at an end face of the valve core, so that the valve core can adjust the opening degree of the shunt hole, and the first open end is configured to allow the valve core to move out of the valve body.

[0009] Optionally, the valve body comprises a shell and a partition arranged in the shell, the partition separates the valve body into the first cavity and the second cavity, and a sealing groove for accommodating the first sealing member is arranged on the side wall of the shell close to the side valve cover and the side wall of the partition close to the side valve cover.

[0010] Optionally, a plurality of threaded holes are formed on the valve body, a plurality of through holes are formed on the side valve cover, and the shunt hole and the confluence hole are located inside the plurality of through holes.

[0011] The valve structure further comprises a plurality of bolts, the plurality of threaded holes, the plurality of through holes and the plurality of bolts are arranged one by one in correspondence, each of the bolts passes through the corresponding through hole and is connected with the corresponding threaded hole.

[0012] Optionally, the inner side of the plurality of bolts and the outer side of the plurality of bolts are provided with first sealing members.

[0013] Optionally, the side valve cover comprises a first cover body and a second cover body connected with each other, the second cover body is located between the first cover body and the valve body, the shunt hole and the confluence hole are formed on the second cover body, a groove with an opening facing the second cover body is formed on the first cover body, the second cover body and the groove jointly constitute the flow channel, and a second sealing member is arranged between the first cover body and the second cover body.

[0014] Optionally, the groove of the valve structure is arc-shaped in cross section.

[0015] Optionally, the valve structure further comprises a valve rod and a driving mechanism, a first end of the valve rod is connected with the valve core, a second end of the valve rod is in transmission connection with the driving mechanism, and the driving mechanism is used to drive the valve rod to move in the vertical direction.

[0016] Optionally, the valve structure further comprises a plurality of transmission mechanisms, the driving mechanism is in transmission connection with the valve rod through the plurality of transmission mechanisms, so that the plurality of transmission mechanisms can jointly drive the valve rod to move in the vertical direction.

[0017] Optionally, the driving mechanism comprises a rotating wheel, a rotating rod and a first gear, the rotating wheel is located outside the valve body, the rotating rod is located inside the valve body, the rotating wheel is connected with the rotating rod and is used to drive the rotating rod to rotate, and the first gear is sleeved on the rotating rod.

[0018] Each of the transmission mechanisms comprises a second gear and a transmission rod, the transmission rod is axially locked and circumferentially rotatable mounted on the valve body, the second gear is sleeved on the transmission rod, the plurality of transmission rods are arranged at intervals in the circumferential direction of the rotating rod, and the first gear is in meshing connection with the plurality of second gears.

[0019] The plurality of transmission rods surround the valve rod, a first thread is formed on each of the transmission rods, and a second thread is formed on the valve rod, the second thread is matched with the first threads on the plurality of transmission rods.

[0020] Optionally, the driving mechanism comprises a motor and a sleeve, the motor is connected with the sleeve and used to drive the sleeve to rotate, one end of the valve rod is inserted into the sleeve and threadedly connected with the sleeve, and a screw-nut pair is formed between the valve rod and the sleeve.

[0021] Through the above technical solution, when the valve structure has a problem, the side valve cover located on both sides of the first open end and the second open end can be removed, so as to expose the first open end and the second open end, and the interiors of the first cavity and the second cavity can be overhauled and cleaned. Meanwhile, the valve core as a key component of the valve structure can also be removed from the valve body through the first open end for overhaul, and the first open end and the second open end provide sufficient space, thereby facilitating replacement and overhaul of the valve core and other components in the valve body, improving the flexibility of valve structure overhaul, and reducing the maintenance cost compared with overall replacement of the valve structure.

[0022] Other features and advantages of the present disclosure will be described in detail in the following detailed description section. BRIEF DESCRIPTION OF DRAWINGS

[0023] The accompanying drawings are included to provide a further understanding of the present disclosure and constitute a part of the specification, and are used together with the following detailed description to explain the present disclosure, but do not constitute a limitation on the present disclosure. In the drawings:

[0024] Figure 1 is a perspective view of a valve structure provided by an embodiment of the present disclosure;

[0025] Figure 2 is a perspective view of a valve structure provided by an embodiment of the present disclosure, wherein the side valve cover is not shown;

[0026] Figure 3 is a perspective view of a side valve cover of a valve structure provided by an embodiment of the present disclosure;

[0027] Figure 4 is an exploded view of a side valve cover of a valve structure provided by an embodiment of the present disclosure;

[0028] Figure 5 is a perspective view of a driving mechanism, a valve rod and a valve core of a valve structure provided by an embodiment of the present disclosure.

[0029] LEGEND OF DRAWINGS

[0030] 100-valve structure; 1-valve body; 11-first cavity; 111-first open end; 12-second cavity; 121-second open end; 13-inlet; 14-outlet; 15-housing; 16-partition; 17-sealing groove; 18-threaded hole; 2-side valve cover; 21-diverter hole; 22-convergence hole; 23-flow channel; 24-through hole; 25-first cover body; 26-second cover body; 27-second sealing member; 3-first sealing member; 4-valve core; 5-bolt; 6-valve stem; 61-second thread; 7-driving mechanism; 71-rotating wheel; 72-rotating rod; 73-first gear; 8-transmission mechanism; 81-second gear; 82-transmission rod; 821-first thread. DETAILED DESCRIPTION

[0031] The following describes the specific embodiments of the present disclosure in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure and are not intended to limit the present disclosure.

[0032] In this disclosure, unless otherwise indicated, directional terms such as "upper" and "lower" are generally defined relative to the normal operating state of the valve structure. These terms are used solely for ease of description and simplification, and are not intended to indicate or imply that the device or component being referred to must have a specific orientation, structure, or operation. Therefore, they should not be construed as limitations of this disclosure. "Inner" and "outer" refer to the inner and outer portions of the corresponding components. Furthermore, the terms "first" and "second," etc., are used solely for distinction and are not to be construed as indicating or implying relative importance.

[0033] It should also be noted that, in the description of this disclosure, unless otherwise expressly specified or limited, the terms "disposed," "connected," "connected," and "installed" should be understood broadly. For example, they may refer to fixed connections, detachable connections, or integral connections; and they may refer to direct connections or indirect connections via an intermediary. Those skilled in the art will understand the specific meanings of these terms in this disclosure based on specific circumstances.

[0034] like Figures 1 to 5 As shown, the present disclosure provides a valve structure 100, including a valve body 1, a side valve cover 2, a first sealing member 3 and a valve core 4, wherein the valve body 1 has a first cavity 11 and a second cavity 12 that are independent of each other, the opposite ends of the first cavity 11 are open and constitute a first open end 111, the opposite ends of the second cavity 12 are open and constitute a second open end 121, and an inlet 13 and an outlet 14 are formed on the valve body 1, the inlet 13 is connected to the first cavity 11, and the outlet 14 is connected to the second cavity 12.

[0035] The valve body 1 is provided with a side valve cover 2 on each side, and the side valve cover 2 is formed with a shunt hole 21 and a confluence hole 22, and the side valve cover 2 is formed with a flow channel 23 communicating the shunt hole 21 and the confluence hole 22, and the side valve cover 2 is detachably connected with the valve body 1 and can cover the first open end 111 and the second open end 121, the shunt hole 21 is used for communicating with the first cavity 11, the confluence hole 22 is used for communicating with the second cavity 12, and the first sealing member 3 is arranged between the valve body 1 and the side valve cover 2.

[0036] The valve core 4 is movably arranged in the first cavity 11 in the vertical direction, and the end face of the valve core 4 is in sliding contact with the side valve cover 2, so that the valve core 4 can adjust the opening degree of the shunt hole 21, and the first open end 111 is configured to allow the valve core 4 to move out of the valve body 1.

[0037] When the valve structure 100 is normally working, the side valve cover 2 covers the first open end 111 and the second open end 121 to cooperate with the cavity wall of the first cavity 11 and the cavity wall of the second cavity 12 to form the first cavity 11 and the second cavity 12. Fluid can flow into the first cavity 11 from the inlet 13, then flow into the two flow channels 23 through the shunt holes 21 on the two side valve covers 2 respectively, and then flow out into the second cavity 12 through the confluence hole 22, and finally flow out of the valve body 1 through the outlet 14 communicating with the second cavity 12. In the above process, the valve core 4 can be controlled to move in the vertical direction, so that the end face of the valve core 4 completely or partially blocks the shunt hole 21, so as to adjust the amount of fluid flowing out of the first cavity 11 through the shunt hole 21.

[0038] Through the above technical scheme, when the valve structure 100 has a problem, the side valve cover 2 on both sides of the first open end 111 and the second open end 121 can be removed, so that the first open end 111 and the second open end 121 are exposed, and the interiors of the first cavity 11 and the second cavity 12 can be repaired and cleaned. At the same time, as a key component of the valve structure 100, the valve core 4 can also be removed from the valve body 1 through the first open end 111 for repair, and the first open end 111 and the second open end 121 provide sufficient space, thereby facilitating the replacement and repair of the valve core 4 and other components in the valve body 1, compared with replacing the entire valve structure 100, the repair flexibility of the valve structure 100 is improved, and the maintenance cost is reduced.

[0039] In order to improve the sealing degree of the valve structure 100, optionally, Figure 2As shown, the valve body 1 comprises a housing 15 and a partition 16 arranged in the housing 15, the partition 16 separates the valve body 1 into a first cavity 11 and a second cavity 12, the housing 15 and the partition 16 close to the side wall of the side valve cover 2 are both provided with a sealing groove 17 for accommodating the first sealing member 3. By opening the sealing groove 17 on the housing 15 and the partition 16, and arranging part of the first sealing member 3 in the sealing groove 17, the sealing degree of the gap between the side valve cover 2 and the valve body 1 is further increased, and the sealing performance of the valve structure 100 is improved, so that the valve structure 100 is convenient to disassemble and overhaul, and the sealing performance of the valve structure 100 is guaranteed.

[0040] Optionally, as shown in Figure 2 and Figure 4 A plurality of threaded holes 18 are formed on the valve body 1, a plurality of through holes 24 are formed on the side valve cover 2, and the branch hole 21 and the converging hole 22 are located inside the plurality of through holes 24. The valve structure 100 further comprises a plurality of bolts 5, and the plurality of threaded holes 18, the plurality of through holes 24 and the plurality of bolts 5 are arranged one by one in correspondence. Each bolt 5 passes through the corresponding through hole 24 and is connected with the corresponding threaded hole 18. The side valve cover 2 can be connected with the valve body 1 through the bolt 5, and the bolt 5 can fix the side valve cover 2 on the valve body 1 while minimizing the gap between the side valve cover 2 and the valve body 1, thereby reducing the possibility of fluid flowing out of the gap between the first cavity 11 and the second cavity 12.

[0041] Here, it should be noted that the branch hole 21 and the converging hole 22 located inside the plurality of through holes 24 means that, in the planar direction of the side valve cover 2, the plurality of through holes 24 are arranged around the branch hole 21 and the converging hole 22. In this way, the bolt 5 passing through the through hole 24 can also be arranged around the branch hole 21 and the converging hole 22, thereby ensuring the sealing of the contact surface between the side valve cover 2 and the valve body 1.

[0042] In order to further improve the sealing effect, in an embodiment provided by the present disclosure, the inner side of the plurality of bolts 5 and the outer side of the plurality of bolts 5 are both provided with the first sealing member 3, that is, in the planar direction of the side valve cover 2, the side of the plurality of bolts 5 close to the branch hole 21 and the converging hole 22 is provided with the first sealing member 3, and in the planar direction of the side valve cover 2, the side of the plurality of bolts 5 away from the branch hole 21 and the converging hole 22 is also provided with the first sealing member 3. The double-layered first sealing member 3 can form a two-layer sealing structure, and when the first sealing member 3 close to the branch hole 21 and the converging hole 22 fails, the first sealing member 3 away from the branch hole 21 and the converging hole 22 can also serve as a backup sealing structure, thereby improving the sealing performance of the valve structure 100.

[0043] In another embodiment provided by the present disclosure, as shown in Figure 3As shown, a plurality of through holes can be formed on the first sealing member 3, and the bolts 5 are sequentially connected with the through holes on the first sealing member 3 and the threaded holes 18 through the side valve cover 2. In this way, the fluid can be prevented from leaking at the through holes 24, and the sealing effect of the side valve cover 2 is improved.

[0044] In another embodiment provided by the present disclosure, the side valve cover has a connecting flange around the periphery thereof, the connecting flange is arranged at the end surface of the side valve cover for contacting the valve body, a plurality of through holes are arranged on the connecting flange, and each bolt passes through a corresponding through hole and is connected with a corresponding threaded hole. By connecting the side valve cover with the valve body through the connecting flange, and arranging the first sealing member between the end surface of the side valve cover and the valve body, the gap caused by the bolts can be reduced, and the tightness of the connection between the side valve cover and the valve body is further improved.

[0045] In addition, in order to enable the end surface of the side valve cover 2 for contacting the valve body 1 to cooperate with the end surface of the valve body 1, a positioning protrusion for contacting the edge of the end surface of the valve body 1 can also be arranged on the side valve cover 2, so as to ensure that the end surface of the side valve cover 2 and the end surface of the valve body 1 are aligned during installation.

[0046] Optionally, as shown in Figure 3 and Figure 4 the side valve cover 2 comprises a first cover body 25 and a second cover body 26 connected with each other, the second cover body 26 is located between the first cover body 25 and the valve body 1, the shunt hole 21 and the converging hole 22 are formed on the second cover body 26, the first cover body 25 is formed with a groove with an opening facing the second cover body 26, the second cover body 26 and the groove together constitute the flow channel 23, and the first cover body 25 and the second cover body 26 are provided with a second sealing member 27. By forming the flow channel 23 which is jointly constituted by the groove on the first cover body 25 and the second cover body 26, the fluid flowing into the shunt hole 21 can be guided to the converging hole 22, so that the fluid can flow from the first cavity 11 to the second cavity 12. By arranging the second sealing member 27 between the first cover body 25 and the second cover body 26, the fluid in the flow channel 23 can be prevented from flowing out of the gap between the first cover body 25 and the second cover body 26 due to pressure.

[0047] As can be understood, as shown in Figure 4 the first cover body 25 and the second cover body 26 are each formed with a plurality of through holes 24, so that the bolts 5 can be sequentially connected with the valve body 1 through the through holes 24, and at the same time, the distance between the first cover body 25 and the second cover body 26 can be as small as possible, and the sealing effect of the second sealing member 27 is improved.

[0048] The present disclosure does not limit the specific shape of the groove, for example, the cross section of the groove can be V-shaped or rectangular. In an embodiment provided by the present disclosure, as shown in Figure 4As shown, the cross section of the groove of the valve structure 100 is arc-shaped. Since the flow channel 23 is responsible for guiding the fluid from the first cavity 11 to the second cavity 12, the pressure from the fluid will also act on the inner wall of the flow channel 23, and the arc-shaped inner wall can better share the pressure from the fluid, so that the fluid pressure can act on the inner wall of the flow channel 23 evenly, improving the pressure-bearing capacity of the flow channel 23. At the same time, since the area of a circle is the largest when the circumference is constant, the arc-shaped flow channel 23 can also accommodate more fluid, reducing the possibility of blockage of the flow channel 23.

[0049] Optionally, as shown in the drawings, Figure 5 The valve structure 100 further comprises a valve rod 6 and a driving mechanism 7, the first end of the valve rod 6 is connected with the valve core 4, and the second end of the valve rod 6 is in transmission connection with the driving mechanism 7, and the driving mechanism 7 is used for driving the valve rod 6 to move in the vertical direction. The second end of the valve rod 6 can move in the vertical direction under the driving of the driving mechanism 7, and since the first end of the valve rod 6 is connected with the valve core 4, the valve rod 6 can also drive the valve core 4 to move in the vertical direction while moving in the vertical direction, so as to make the end face of the valve core 4 completely or partially block the shunt hole 21, so as to adjust the amount of fluid flowing out of the first cavity 11 through the shunt hole 21.

[0050] In order to make the adjustment of the valve structure 100 more accurate, optionally, as shown in the drawings, Figure 5 The valve structure 100 further comprises a plurality of transmission mechanisms 8, and the driving mechanism 7 is in transmission connection with the valve rod 6 through the plurality of transmission mechanisms 8, so that the plurality of transmission mechanisms 8 can jointly drive the valve rod 6 to move in the vertical direction. In order to reduce the influence of the transmission mechanism 8 on the adjustment accuracy of the valve structure 100, the driving mechanism 7 is in transmission connection with the valve rod 6 through the plurality of transmission mechanisms 8, and the plurality of transmission mechanisms 8 can cooperate with each other during transmission to reduce the error during transmission, thereby improving the driving accuracy of the driving mechanism 7 on the valve rod 6.

[0051] The specific structure of the transmission mechanism 8 is not limited in the present disclosure, as shown in the drawings, Figure 5 In an embodiment provided by the present disclosure, the driving mechanism 7 comprises a rotating wheel 71, a rotating rod 72 and a first gear 73, the rotating wheel 71 is located outside the valve body 1, the rotating rod 72 is located inside the valve body 1, the rotating wheel 71 is connected with the rotating rod 72 and is used for driving the rotating rod 72 to rotate, and the first gear 73 is sleeved on the rotating rod 72.

[0052] Each transmission mechanism 8 comprises a second gear 81 and a transmission rod 82, the transmission rod 82 is axially locked and circumferentially rotatable mounted on the valve body 1, the second gear 81 is sleeved on the transmission rod 82, a plurality of transmission rods 82 are arranged at intervals around the circumference of the rotating rod 72, and the first gear 73 is engaged with the plurality of second gears 81. A plurality of transmission rods 82 surround the valve rod 6, and a first thread 821 is formed on each transmission rod 82. A second thread 61 is formed on the valve rod 6, and the second thread 61 cooperates with the first thread 821 on the plurality of transmission rods 82. The diameter of the first gear 73 can be greater than the diameter of the second gear 81.

[0053] By rotating the rotating wheel 71, the rotating rod 72 can be driven to rotate, so that the first gear 73 sleeved on the rotating rod 72 rotates around the axis. Since the first gear 73 is engaged with the plurality of second gears 81, as the first gear 73 rotates, the second gear 81 also rotates, thereby driving the transmission rod 82 to rotate. A plurality of transmission rods 82 surround the valve rod 6. Since the first thread 821 on the transmission rod 82 cooperates with the second thread 61 on the valve rod 6, and the transmission rod 82 is axially locked and mounted on the valve body 1, the transmission rod 82 can only rotate and cannot move, and the valve core 4 is limited by the two side valve covers 2, so the valve core 4 can only move and cannot rotate. Therefore, the transmission rod 82 and the valve rod 6 form a screw-nut pair, and the rotation of the transmission rod 82 can drive the valve rod 6 to move in the vertical direction, thereby driving the valve core 4 to move.

[0054] Since a plurality of transmission rods 82 surround the valve rod 6, on the one hand, the valve rod 6 can be simultaneously pushed from multiple directions, making the force on the valve rod 6 more evenly distributed and less likely to shift due to uneven force. On the other hand, since the transmission rod 82 and the rotating rod 72 do not move axially during transmission, the change in the center of gravity caused by the axial movement of the transmission rod 82 and the rotating rod 72 is also reduced, reducing the changes in the magnitude and direction of the force on the valve rod 6 and improving the stability of the valve operation.

[0055] Moreover, since the diameter of the first gear 73 is greater than the diameter of the second gear 81, when the two gears are engaged for transmission, the linear speed of the first gear 73 and the second gear 81 is the same, but the angular speed of the second gear 81 is greater than that of the first gear 73, so that the second gear 81 turns a larger angle in unit time. Since the second gear 81 is connected to the valve rod 6 through the first thread 821, the angle turned by the second gear 81 can be converted into the distance moved by the valve rod 6 in the vertical direction, so that the rotating wheel 71 can drive the valve rod 6 to move a longer distance in the vertical direction with a smaller rotation angle, thereby improving the opening and closing speed and efficiency of the valve structure 100.

[0056] In another embodiment provided by the present disclosure, the driving mechanism 7 comprises a motor and a sleeve, the motor is connected with the sleeve and used to drive the sleeve to rotate, one end of the valve rod 6 is inserted into the sleeve and threadedly connected with the sleeve, and a screw-nut pair is formed between the valve rod 6 and the sleeve. With the rotation of the sleeve, the valve rod 6 can move in the vertical direction under the threaded driving of the sleeve, so as to adjust the position of the valve core 4 and the opening degree of the shunt hole 21.

[0057] The preferred embodiments of the present disclosure are described in detail above with reference to the drawings, but the present disclosure is not limited to the specific details in the above-described embodiments, and various simple modifications can be made to the technical solutions of the present disclosure within the technical concept of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.

[0058] In addition, it should be noted that each specific technical feature described in the above specific embodiments can be combined in any appropriate manner without contradiction. In order to avoid unnecessary repetition, various possible combinations are not described again in the present disclosure.

[0059] In addition, various different embodiments of the present disclosure can also be combined in any manner, as long as it does not deviate from the idea of the present disclosure, and it should be considered as the disclosed content of the present disclosure.

Claims

1. A valve structure, characterized by, The valve structure comprises: a valve body having a first cavity and a second cavity inside, both ends of the first cavity being open and forming a first open end, both ends of the second cavity being open and forming a second open end, an inlet and an outlet being formed on the valve body, the inlet being communicated with the first cavity, the outlet being communicated with the second cavity; a side valve cover, the valve body having the side valve cover on both sides, the side valve cover having a shunt hole and a confluence hole, the side valve cover having a flow channel communicated with the shunt hole and the confluence hole, the side valve cover being detachably connected with the valve body and capable of covering the first open end and the second open end, the shunt hole being communicated with the first cavity, the confluence hole being communicated with the second cavity; a first sealing element arranged between the valve body and the side valve cover; a valve core movably arranged in the first cavity in a vertical direction and having an end surface in sliding contact with the side valve cover, so that the valve core can adjust the opening degree of the shunt hole, the first open end being configured to allow the valve core to move out of the valve body.

2. The valve structure of claim 1, wherein The valve body comprises a shell and a partition arranged in the shell, the partition separating the valve body into the first cavity and the second cavity, the shell having a side wall close to the side valve cover and the partition having a side wall close to the side valve cover, both of which are provided with a sealing groove for accommodating the first sealing element.

3. The valve structure of claim 1, wherein The valve body is provided with a plurality of threaded holes, the side valve cover is provided with a plurality of through holes, and the shunt hole and the confluence hole are located inside the plurality of through holes; The valve structure further comprises a plurality of bolts, the plurality of threaded holes, the plurality of through holes and the plurality of bolts being arranged one by one in correspondence, each bolt passing through the corresponding through hole and being connected with the corresponding threaded hole.

4. The valve structure of claim 3, wherein The inner side of the plurality of bolts and the outer side of the plurality of bolts are provided with a first sealing element.

5. The valve structure of claim 1, wherein The side valve cover comprises a first cover body and a second cover body connected with each other, the second cover body being located between the first cover body and the valve body, the shunt hole and the confluence hole being formed on the second cover body, the first cover body being provided with a groove having an opening facing the second cover body, the second cover body and the groove together forming the flow channel, and the first cover body and the second cover body being provided with a second sealing element.

6. The valve structure of claim 5, wherein The cross section of the groove of the valve structure is arc-shaped.

7. Valve structure according to any of claims 1 - 6, characterized in that The valve structure further comprises a valve rod and a driving mechanism, a first end of the valve rod being connected with the valve core, a second end of the valve rod being in transmission connection with the driving mechanism, and the driving mechanism being used to drive the valve rod to move in the vertical direction.

8. The valve structure of claim 7, wherein The valve structure further comprises a plurality of transmission mechanisms, the driving mechanism being in transmission connection with the valve rod through the plurality of transmission mechanisms, so that the plurality of transmission mechanisms can jointly drive the valve rod to move in the vertical direction.

9. The valve structure of claim 8, wherein The driving mechanism comprises a rotating wheel, a rotating rod and a first gear, the rotating wheel being located outside the valve body, the rotating rod being located inside the valve body, the rotating wheel being connected with the rotating rod and being used to drive the rotating rod to rotate, and the first gear being sleeved on the rotating rod. Each of the transmission mechanisms comprises a second gear and a transmission rod, the transmission rod is axially locked and circumferentially rotatable mounted on the valve body, the second gear is sleeved on the transmission rod, and a plurality of the transmission rods are arranged at intervals around the circumference of the rotating rod, and the first gear is engaged with a plurality of the second gears; A plurality of the transmission rods surround the valve rod, a first thread is formed on each of the transmission rods, and a second thread is formed on the valve rod and matched with the first threads on the plurality of the transmission rods.

10. The valve structure of claim 7, wherein The driving mechanism comprises a motor and a sleeve, the motor is connected with the sleeve and used for driving the sleeve to rotate, one end of the valve rod is inserted into the sleeve and threadedly connected with the sleeve, and a screw-nut pair is formed between the valve rod and the sleeve.

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