Electric stop valve

Abstract

The utility model provides an electric stop valve which comprises a valve body component and a driving mechanism, the valve body component comprises a valve body structure and a valve element structure, an assembly hole, a valve cavity and a valve port are sequentially arranged in the valve body structure, the valve element structure penetrates through the assembly hole, and the inner wall of the valve element structure is in sealing fit with the inner wall of the assembly hole. The two ends of the valve element structure are a rotating end and a sealing end respectively, the sealing end is located in the valve cavity, the sealing end opens and closes the valve port through rotation, the driving mechanism is detachably connected with the valve body component, and the driving mechanism drives the rotating end to rotate. According to the electric stop valve, the valve body component and the driving mechanism of the electric stop valve are arranged to be of a detachable structure, the valve element structure is in sealing fit with the inner wall of the assembling hole of the valve body structure, and therefore the valve element structure can open and close a valve port in the mode that the rotating end of the valve element structure is manually rotated. Due to the fact that the valve element structure is in sealing fit with the inner wall of the assembly hole of the valve body structure, the problem that a valve cavity leaks due to the fact that a driving mechanism is disassembled is avoided.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and more specifically, to an electric shut-off valve. Background Technology

[0002] Electric shut-off valves are used in equipment such as air conditioning systems. They control the opening and closing of the valve port through electric actuation, thereby controlling the flow of pipelines. For sealing purposes, the valve body and drive mechanism of an electric shut-off valve are non-removable after assembly. Therefore, during commissioning or use, the valve core can only be activated by energizing the drive mechanism. However, in some installation and commissioning stages, the power supply and control system are not yet fully developed, making manual commissioning of the electric shut-off valve and pipeline system impossible at this stage. Utility Model Content

[0003] This invention provides an electric shut-off valve to solve the problem that existing electric shut-off valves cannot be manually adjusted.

[0004] To address the aforementioned problems, this utility model provides an electric shut-off valve, comprising a valve body component and a drive mechanism. The valve body component includes a valve body structure and a valve core structure. The valve body structure has an assembly hole, a valve cavity, and a valve port arranged sequentially within it. The valve core structure passes through the assembly hole, and there is a sealing fit between the valve core structure and the inner wall of the assembly hole. The two ends of the valve core structure are a rotating end and a sealing end, respectively. The sealing end is located within the valve cavity, and the sealing end opens and closes the valve port by rotation. The drive mechanism and the valve body component are detachably connected, and the drive mechanism drives the rotating end to rotate.

[0005] Furthermore, the valve body component also includes a dynamic sealing ring, and a dynamic sealing groove is provided between the outer wall of the valve core structure and the inner wall of the assembly hole, with the dynamic sealing ring disposed within the dynamic sealing groove.

[0006] Furthermore, the dynamic sealing groove is provided on the outer wall of the valve core structure or the inner wall of the assembly hole; there are at least two dynamic sealing rings, which are spaced apart along the axial direction of the assembly hole, and each dynamic sealing ring corresponds to a dynamic sealing groove.

[0007] Furthermore, the valve body structure includes a valve seat and a preload sleeve installed in the valve seat. The preload sleeve has an assembly hole, and the preload sleeve axially limits the valve core structure. The outer wall of the preload sleeve and the inner wall of the valve seat are in a sealing fit.

[0008] Furthermore, the valve body component also includes a static sealing ring, and a static sealing groove is provided between the outer wall of the pre-tightening sleeve and the inner wall of the valve seat, with the static sealing ring disposed within the static sealing groove.

[0009] Furthermore, the pre-tightening sleeve includes a first sleeve section and a second sleeve section connected to each other. The second sleeve section is closer to the valve port than the first sleeve section. The external thread of the second sleeve section is engaged with the internal thread of the valve seat inner wall. The static sealing groove and the static sealing ring are located between the outer wall of the first sleeve section and the inner wall of the valve seat.

[0010] Furthermore, the drive mechanism has a drive output shaft with a rotating end protruding from the mounting hole. The rotating end has a rotation limiting surface, which is matched with the drive output shaft to limit the relative position of the valve core structure and the drive output shaft in the circumferential direction.

[0011] Furthermore, the rotating end is a plate-shaped block, and the drive output shaft has a rotation limiting groove, the shape of which matches the shape of the rotation limiting groove and the rotating end.

[0012] Furthermore, the drive mechanism includes a drive component and a connecting seat. The drive component includes a drive housing, a drive assembly, and a drive output shaft. The drive housing and the connecting seat are connected. The connecting seat and the valve body structure are detachably connected. The drive assembly is disposed inside the drive housing. The drive assembly drives the drive output shaft to rotate. The drive output shaft is detachably connected to the rotating end. The drive output shaft drives the rotating end to rotate.

[0013] Furthermore, the drive housing and the connecting base are either an integral structure or separate structures. The drive assembly includes a drive rotor and a planetary reduction gear assembly, which are connected in a drive connection. The planetary reduction gear assembly drives the drive output shaft to rotate.

[0014] Alternatively, the drive mechanism includes a drive component, which includes a drive housing, a drive assembly, and a drive output shaft. The drive assembly is housed within the drive housing and drives the drive output shaft to rotate. The drive output shaft is detachably connected to the rotating end, and the drive output shaft drives the rotating end to rotate. The electric shut-off valve also includes a connecting seat and a preload nut. The connecting seat and the valve body structure are detachably connected, non-detachably connected, or integrally formed. The connecting seat and the preload nut are threaded together, and the preload nut is fitted onto the drive housing and engages with the drive housing for limiting. The drive housing and the connecting seat can be disassembled and connected by removing and installing the preload nut.

[0015] Furthermore, the valve body structure includes a valve seat, within which a valve body sealing block is located. A circumferential notch in the valve body sealing block forms a valve port. The valve core structure includes a valve core body, a connecting rod, and a valve core sealing block connected in sequence. The valve core body passes through an assembly hole, and the valve core sealing block forms a sealing end. The end face of the valve core sealing block abuts against the end face of the valve body sealing block. The valve core sealing block has a solid structure and a clearance notch in the circumferential direction. The valve port is closed when the solid structure of the valve core sealing block corresponds to the valve port, and the valve port is opened when the clearance notch of the valve core sealing block corresponds to the valve port.

[0016] In this design, the valve body and drive mechanism of the electric shut-off valve are detachable, and the inner walls of the assembly holes of the valve core and valve body are sealed together. This allows for manual adjustment during initial installation; the valve body can be installed on the pipeline first, or the assembled electric shut-off valve can be installed on the pipeline first, and then the drive mechanism can be removed. The valve core can then be manually rotated to open and close the valve port. Because of the sealed fit between the inner walls of the assembly holes of the valve core and valve body, leakage from the valve cavity caused by removing the drive mechanism is avoided, ensuring the feasibility of manual adjustment. This electric shut-off valve allows for manual adjustment even when the power supply and control system are not fully functional, improving operational flexibility. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of the electric shut-off valve provided in an embodiment of the present invention is shown;

[0019] Figure 2 It shows Figure 1 A schematic diagram of the valve body components;

[0020] Figure 3 It shows Figure 1 A cross-sectional view of the valve body component;

[0021] Figure 4 It shows Figure 1 A schematic diagram of the preload sleeve in the middle;

[0022] Figure 5 It shows Figure 1 A schematic diagram of the connector in the diagram;

[0023] Figure 6 It shows Figure 1 A schematic diagram of the driving components.

[0024] The above figures include the following reference numerals:

[0025] 100. Valve body components; 110. Dynamic seal ring; 120. Static seal ring;

[0026] 200. Valve body structure; 201. Valve cavity; 202. Valve port; 210. Valve seat; 220. Preload sleeve; 221. Assembly hole; 222. First sleeve section; 223. Second sleeve section; 230. Valve body sealing block;

[0027] 300. Valve core structure; 310. Valve core body; 311. Plate-shaped block; 320. Connecting rod; 330. Valve core sealing block;

[0028] 400. Drive component; 410. Drive output shaft; 411. Rotary limiting groove; 420. Drive rotor; 430. Planetary reduction gear assembly; 440. Drive housing;

[0029] 500. Connector;

[0030] 610. Preload nut. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0032] like Figures 1 to 6 As shown, an embodiment of this utility model provides an electric shut-off valve, including a valve body component 100 and a drive mechanism. The valve body component 100 includes a valve body structure 200 and a valve core structure 300. The valve body structure 200 has an assembly hole 221, a valve cavity 201 and a valve port 202 arranged sequentially. The valve core structure 300 passes through the assembly hole 221, and there is a sealing fit between the valve core structure 300 and the inner wall of the assembly hole 221. The two ends of the valve core structure 300 are a rotating end and a sealing end, respectively. The sealing end is located in the valve cavity 201, and the sealing end opens and closes the valve port 202 by rotation. The drive mechanism and the valve body component 100 are detachably connected, and the drive mechanism drives the rotating end to rotate.

[0033] In this design, the valve body component 100 and the drive mechanism of the electric shut-off valve are designed to be detachable. The inner walls of the assembly holes of the valve core structure 300 and the valve body structure 200 are sealed together. This allows for manual adjustment during the initial installation of the electric shut-off valve. Alternatively, the valve body component 100 can be installed on the pipeline first, or the assembled electric shut-off valve can be installed on the pipeline and then the drive mechanism removed. The valve core structure 300 can be manually rotated to open and close the valve port 202. Because the inner walls of the assembly holes 221 of the valve core structure 300 and the valve body structure 200 are sealed together, leakage in the valve cavity 201 caused by removing the drive mechanism is avoided, ensuring the feasibility of manual adjustment. This electric shut-off valve allows for manual adjustment even when the power supply and control system are not fully functional, improving operational flexibility.

[0034] Specifically, the valve body component 100 also includes a dynamic sealing ring 110. A dynamic sealing groove is provided between the outer wall of the valve core structure 300 and the inner wall of the mounting hole 221, and the dynamic sealing ring 110 is disposed in the dynamic sealing groove. By providing the dynamic sealing ring 110 between the outer wall of the valve core structure 300 and the inner wall of the mounting hole 221, the seal between the outer wall of the valve core structure 300 and the inner wall of the mounting hole 221 is ensured, preventing fluid in the valve cavity 201 from leaking between the outer wall of the valve core structure 300 and the inner wall of the mounting hole 221 during manual adjustment.

[0035] like Figure 3 As shown, the dynamic sealing groove is provided on the outer wall of the valve core structure 300 or the inner wall of the assembly hole 221; there are at least two dynamic sealing rings 110, which are spaced apart along the axial direction of the assembly hole 221, and each dynamic sealing ring 110 corresponds to a dynamic sealing groove. By providing two or more dynamic sealing rings 110, the sealing effect between the outer wall of the valve core structure 300 and the inner wall of the assembly hole 221 is further improved.

[0036] like Figure 1 and Figure 3 As shown, the valve body structure 200 includes a valve seat 210 and a preload sleeve 220 installed in the valve seat 210. The preload sleeve 220 has an assembly hole 221. The preload sleeve 220 axially limits the valve core structure 300. The outer wall of the preload sleeve 220 and the inner wall of the valve seat 210 are sealed together.

[0037] The preload sleeve 220 is a detachable structure. After the valve core structure 300 is installed, the preload sleeve 220 is used to axially limit the valve core structure 300, preventing internal leakage caused by incomplete closure of the valve port 202 due to axial movement of the valve core structure 300. By sealing the outer wall of the preload sleeve 220 with the inner wall of the valve seat 210, leakage of fluid in the valve cavity 201 from between the outer wall of the preload sleeve 220 and the inner wall of the valve seat 210 is prevented.

[0038] Furthermore, such as Figure 3 As shown, the valve body component 100 also includes a static sealing ring 120. A static sealing groove is provided between the outer wall of the pre-tightening sleeve 220 and the inner wall of the valve seat 210, and the static sealing ring 120 is disposed within the static sealing groove. By providing the static sealing ring 120, the seal between the outer wall of the pre-tightening sleeve 220 and the inner wall of the valve seat 210 is ensured. Where space permits, multiple static sealing rings 120 can be provided to improve the sealing effect.

[0039] Specifically, such as Figure 4As shown, the pre-tightening sleeve 220 includes a first sleeve segment 222 and a second sleeve segment 223 that are connected to each other. The second sleeve segment 223 is closer to the valve port 202 than the first sleeve segment 222. The external thread of the second sleeve segment 223 is engaged with the internal thread of the inner wall of the valve seat 210. The static sealing groove and the static sealing ring 120 are located between the outer wall of the first sleeve segment 222 and the inner wall of the valve seat 210.

[0040] The second segment 223 of the pre-tightening sleeve 220 is connected to the valve seat 210 via a threaded connection, which is convenient to operate and reliable. Furthermore, a seal is achieved through a static sealing ring 120 between the outer wall of the first segment 222 and the inner wall of the valve seat 210. The static sealing groove can be located on either the outer wall of the first segment 222 or the inner wall of the valve seat 210.

[0041] like Figure 1 and Figure 6 As shown, the drive mechanism has a drive output shaft 410, with its rotating end protruding from the mounting hole 221. The rotating end has a rotation limiting surface, which engages with the drive output shaft 410 to limit the relative position of the valve core structure 300 and the drive output shaft 410 in the circumferential direction. Thus, the rotation of the drive output shaft 410 drives the valve core structure 300 to rotate, thereby changing the circumferential position of the valve core structure 300 and realizing the opening or closing of the valve port 202.

[0042] like Figure 2 and Figure 6 As shown, the rotating end is a plate-shaped block 311, and the drive output shaft 410 has a rotation limiting groove 411, the shape of which matches the shape of the rotating end. Through the cooperation of the plate-shaped block 311 and the rotation limiting groove 411, the valve core structure 300 and the drive output shaft 410 are limited in the circumferential direction, ensuring torque transmission.

[0043] Specifically, such as Figure 1 As shown, the drive mechanism includes a drive component 400 and a connecting seat 500. The drive component 400 includes a drive housing 440, a drive assembly, and a drive output shaft 410. The drive housing 440 and the connecting seat 500 are connected. The connecting seat 500 and the valve body structure 200 are detachably connected. The drive assembly is disposed inside the drive housing 440. The drive assembly drives the drive output shaft 410 to rotate. The drive output shaft 410 is detachably connected to the rotating end. The drive output shaft 410 drives the rotating end to rotate.

[0044] This drives the drive output shaft 410 to rotate via the drive assembly, which in turn drives the valve core structure 300 to rotate. Since the connecting seat 500 and the valve body structure 200 are detachably connected, and the drive output shaft 410 is detachably connected to the rotating end, a detachable connection between the drive mechanism and the valve body component 100 is achieved. This electric shut-off valve allows for manual adjustment even when the power supply and control system are inadequate, improving operational flexibility.

[0045] The drive housing 440 and the connecting seat 500 can be either an integral or separate structure, allowing for detachable connection between the drive mechanism and the valve body component 100. The drive assembly includes a drive rotor 420 and a planetary reduction gear assembly 430, which are connected in a drive configuration. The planetary reduction gear assembly 430 drives the drive output shaft 410 to rotate via internal transmission.

[0046] In this design, a planetary reduction gear assembly 430 is used, which can reduce the speed of the drive rotor 420 and increase the output torque within a compact space. This provides sufficient torque to drive the valve core structure 300 to rotate without causing it to rotate too fast, making it easy to control the rotation angle. Furthermore, the above structure makes the electric shut-off valve compact and space-saving.

[0047] In another embodiment, the drive mechanism includes a drive component 400, which includes a drive housing 440, a drive assembly, and a drive output shaft 410. The drive assembly is disposed within the drive housing 440 and drives the drive output shaft 410 to rotate. The drive output shaft 410 is detachably connected to the rotating end, and the drive output shaft 410 drives the rotating end to rotate. The electric shut-off valve also includes a connecting seat 500 and a preload nut 610. The connecting seat 500 and the valve body structure 200 are detachably connected, non-detachably connected, or integrally formed. The connecting seat 500 and the preload nut 610 are threadedly connected. The preload nut 610 is sleeved on the drive housing 440 and engages with the drive housing 440 for limiting. The drive housing 440 and the connecting seat 500 can be disassembled and connected by disassembling and assembling the preload nut 610.

[0048] In this design, the drive housing 440 and the connecting seat 500 are detachably connected. Specifically, the drive housing 440 is limited by a preload nut 610, which connects the preload nut 610 to the connecting seat 500. The drive output shaft 410 is detachably connected to the rotating end. This also achieves a two-part detachable structure for the electric shut-off valve. When manual adjustment is required during the initial installation of the electric shut-off valve, the valve body component 100 can be installed on the pipeline first, or the assembled electric shut-off valve can be installed on the pipeline and then the drive mechanism can be removed. The valve core structure 300 can be manually rotated to open and close the valve port 202. The connecting seat 500 and the valve body structure 200 are detachably connected, for example, by threaded connection, or the connecting seat 500 and the valve body structure 200 are non-detachably connected, for example, by welding, or the connecting seat 500 and the valve body structure 200 are an integral structure.

[0049] like Figure 1 As shown, the valve body structure 200 includes a valve seat 210, which has a valve body sealing block 230. The valve body sealing block 230 has a circumferential notch to form a valve port 202. The valve core structure 300 includes a valve core body 310, a connecting rod 320, and a valve core sealing block 330 connected in sequence. The valve core body 310 passes through the assembly hole 221. The valve core sealing block 330 forms a sealing end. The end face of the valve core sealing block 330 abuts against the end face of the valve body sealing block 230. The valve core sealing block 330 has a solid structure and a clearance notch in the circumferential direction. The valve port 202 is closed when the solid structure of the valve core sealing block 330 corresponds to the valve port 202, and the valve port 202 is opened when the clearance notch of the valve core sealing block 330 corresponds to the valve port 202.

[0050] With the above configuration, the rotation of the valve core body 310 and the connecting rod 320 drives the valve core sealing block 330 to rotate, thereby changing the physical structure of the valve core sealing block 330 and the position of the clearance notch in the circumferential direction. When the physical structure of the valve core sealing block 330 corresponds to the valve port 202, the valve port 202 is blocked, and the valve port 202 is disconnected from the valve cavity 201. When the clearance notch of the valve core sealing block 330 corresponds to the valve port 202, the valve port 202 is connected to the clearance notch. Since the clearance notch is connected to the valve cavity 201, the connection between the valve port 202 and the valve cavity 201 is achieved.

[0051] The above description is merely an optional embodiment of this solution and is not intended to limit the solution. Various modifications and variations can be made to this solution by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this solution should be included within the scope of protection of this solution.

[0052] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0053] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as exemplary only and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0054] In the description of this solution, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the attached drawings. It is only for the convenience of describing this solution and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or component referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, they should not be construed as limiting the scope of protection of this solution. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0055] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0056] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore should not be construed as limiting the scope of protection of this solution.

Claims

1. An electric shut-off valve, characterized in that, The device includes a valve body component (100) and a drive mechanism. The valve body component (100) includes a valve body structure (200) and a valve core structure (300). The valve body structure (200) has an assembly hole (221), a valve cavity (201), and a valve port (202) arranged sequentially. The valve core structure (300) passes through the assembly hole (221). The valve core structure (300) and the inner wall of the assembly hole (221) are sealed together. The two ends of the valve core structure (300) are a rotating end and a sealing end, respectively. The sealing end is located in the valve cavity (201). The sealing end opens and closes the valve port (202) by rotation. The drive mechanism is detachably connected to the valve body component (100). The drive mechanism drives the rotating end to rotate.

2. The electric shut-off valve according to claim 1, characterized in that, The valve body component (100) also includes a dynamic sealing ring (110). A dynamic sealing groove is provided between the outer wall of the valve core structure (300) and the inner wall of the assembly hole (221), and the dynamic sealing ring (110) is disposed in the dynamic sealing groove.

3. The electric shut-off valve according to claim 2, characterized in that, The dynamic sealing groove is disposed on the outer wall of the valve core structure (300) or the inner wall of the assembly hole (221); there are at least two dynamic sealing rings (110), and at least two dynamic sealing rings (110) are spaced apart along the axial direction of the assembly hole (221), and each dynamic sealing ring (110) corresponds to one dynamic sealing groove.

4. The electric shut-off valve according to claim 1, characterized in that, The valve body structure (200) includes a valve seat (210) and a preload sleeve (220) installed in the valve seat (210). The preload sleeve (220) has the assembly hole (221). The preload sleeve (220) axially limits the valve core structure (300). The outer wall of the preload sleeve (220) and the inner wall of the valve seat (210) are in a sealing fit.

5. The electric shut-off valve according to claim 4, characterized in that, The valve body component (100) also includes a static sealing ring (120), and a static sealing groove is provided between the outer wall of the pre-tightening sleeve (220) and the inner wall of the valve seat (210), and the static sealing ring (120) is disposed in the static sealing groove.

6. The electric shut-off valve according to claim 5, characterized in that, The pre-tightening sleeve (220) includes a first sleeve segment (222) and a second sleeve segment (223) connected to each other. The second sleeve segment (223) is closer to the valve port (202) relative to the first sleeve segment (222). The external thread of the second sleeve segment (223) is engaged with the internal thread of the inner wall of the valve seat (210). The static sealing groove and the static sealing ring (120) are located between the outer wall of the first sleeve segment (222) and the inner wall of the valve seat (210).

7. The electric shut-off valve according to claim 1, characterized in that, The drive mechanism has a drive output shaft (410), the rotating end protrudes from the mounting hole (221), the rotating end has a rotation limiting surface, the rotation limiting surface and the drive output shaft (410) are limited to limit the relative position of the valve core structure (300) and the drive output shaft (410) in the circumferential direction.

8. The electric shut-off valve according to claim 7, characterized in that, The rotating end is a plate-shaped block (311), and the drive output shaft (410) has a rotation limiting groove (411), the shape of which matches the shape of the rotation limiting groove (411) and the rotating end.

9. The electric shut-off valve according to claim 1, characterized in that, The driving mechanism includes a driving component (400) and a connecting seat (500). The driving component (400) includes a driving housing (440), a driving assembly, and a driving output shaft (410). The driving housing (440) and the connecting seat (500) are connected. The connecting seat (500) and the valve body structure (200) are detachably connected. The driving assembly is disposed inside the driving housing (440). The driving assembly drives the driving output shaft (410) to rotate. The driving output shaft (410) is detachably connected to the rotating end. The driving output shaft (410) drives the rotating end to rotate.

10. The electric shut-off valve according to claim 9, characterized in that, The drive housing (440) and the connecting seat (500) are an integral structure or a separate structure. The drive assembly includes a drive rotor (420) and a planetary reduction assembly (430). The drive rotor (420) and the planetary reduction assembly (430) are drivenly connected. The planetary reduction assembly (430) drives the drive output shaft (410) to rotate.

11. The electric shut-off valve according to claim 1, characterized in that, The driving mechanism includes a driving component (400), which includes a driving housing (440), a driving assembly, and a driving output shaft (410). The driving assembly is disposed inside the driving housing (440), and the driving assembly drives the driving output shaft (410) to rotate. The driving output shaft (410) is detachably connected to the rotating end, and the driving output shaft (410) drives the rotating end to rotate. The electric shut-off valve also includes a connecting seat (500) and a preload nut (610). The connecting seat (500) and the valve body structure (200) are detachably connected, non-detachably connected, or integrated. The connecting seat (500) and the preload nut (610) are threaded together. The preload nut (610) is sleeved on the drive housing (440) and engages with the drive housing (440) in a limiting fit. The drive housing (440) and the connecting seat (500) can be disassembled and connected by assembling and disassembling the preload nut (610).

12. The electric shut-off valve according to claim 1, characterized in that, The valve body structure (200) includes a valve seat (210), which has a valve body sealing block (230) inside. The valve body sealing block (230) forms the valve port (202) through a circumferential notch. The valve core structure (300) includes a valve core body (310), a connecting rod (320), and a valve core sealing block (330) connected in sequence. The valve core body (310) passes through the assembly hole (221), and the valve core sealing block (330) forms the valve port (202). The valve core sealing block (330) has an end face that abuts against the end face of the valve body sealing block (230). The valve core sealing block (330) has a solid structure and a clearance notch in the circumferential direction. The valve port (202) is closed when the solid structure of the valve core sealing block (330) corresponds to the valve port (202), and the valve port (202) is opened when the clearance notch of the valve core sealing block (330) corresponds to the valve port (202).

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