Electric stop valve

Abstract

The utility model provides an electric stop valve which comprises a driving component, a valve body component and a connecting seat, the valve body component comprises a valve seat and a valve core structure rotatably arranged in the valve seat, a valve port is arranged in the valve seat, the valve core structure opens and closes the valve port through rotation, one end of the connecting seat is connected with the driving component, and the other end of the connecting seat is connected with the valve seat. The driving component is connected with the valve element structure and drives the valve element structure to rotate. According to the scheme, the connecting base and the valve seat are machined separately, when the split structures are machined separately, all parts are short, machining of the internal structure is facilitated, a tool does not need to go deep, and breakage is not prone to occurring, so that the machining difficulty is lowered, the valve seat and the driving component are connected with the connecting base separately after machining is completed, and assembling of the electric stop valve is achieved. Therefore, by means of the scheme, the problem that an integrated shell structure in the electric stop valve is not easy to machine is solved.

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 are controlled by electric actuation to open and close the valve port, thereby controlling the flow of pipelines. In related technologies, electric shut-off valves typically integrate the valve core structure into a single housing structure, which is then connected to the drive component. This single-unit housing structure is complex due to the need to house multiple parts. It is also quite long, making internal machining difficult. Deep machining of the internal structure can easily lead to breakage of cutting tools, making it challenging to manufacture. Utility Model Content

[0003] This utility model provides an electric shut-off valve to solve the problem that the integrated shell structure of an electric shut-off valve is difficult to process.

[0004] To solve the above problems, this utility model provides an electric shut-off valve, including a drive component, a valve body component, and a connecting seat. The valve body component includes a valve seat and a valve core structure rotatably disposed within the valve seat. A valve port is provided within the valve seat. The valve core structure opens and closes the valve port by rotation. One end of the connecting seat is connected to the drive component, and the other end of the connecting seat is connected to the valve seat. The drive component is connected to the valve core structure and drives the valve core structure to rotate.

[0005] Furthermore, the connecting seat includes a first connecting segment and a second connecting segment that are connected to each other. The first connecting segment has a first connecting hole, the second connecting segment has a second connecting hole, a portion of the driving component is located in the first connecting hole and is in a limiting fit, and a portion of the valve seat is located in the second connecting hole and is in a limiting fit.

[0006] Furthermore, the inner diameter of the first connecting hole is larger than the inner diameter of the second connecting hole, and the transition position between the first and second connecting holes has a bottom wall limiting surface, which abuts against the driving component; and / or,

[0007] The second connecting hole is a stepped hole, and the inner wall of the second connecting hole has a connecting stepped surface, which abuts against the end face of the valve seat.

[0008] Furthermore, a stepped structure is formed between the outer peripheral surfaces of the first connecting segment and the second connecting segment, and the outer diameter of the first connecting segment is larger than the outer diameter of the second connecting segment; and / or,

[0009] The second connecting hole and the valve seat are threaded together. At least one of the outer peripheral surfaces of the first connecting section and the second connecting section is a polygonal surface, which is used to mate with the rotary tool.

[0010] Furthermore, there is a sealing fit between the connecting seat and the valve seat.

[0011] Furthermore, the valve body component also includes a valve body sealing ring, which is located between the connecting seat and the valve seat.

[0012] Furthermore, there is a sealed fit between the connector and the drive component.

[0013] Furthermore, the drive component includes a drive housing and a housing seal ring, the connecting seat is connected to the drive housing, and the housing seal ring is located between the inner wall of the connecting seat and the outer wall of the drive housing.

[0014] Furthermore, the electric shut-off valve also includes a preload nut, the connecting seat has an internal thread, the preload nut has an external thread, the connecting seat and the preload nut are threadedly connected, and the preload nut is sleeved on the drive housing of the drive component and is limited to cooperate with the drive housing.

[0015] Furthermore, the connecting seat has a bottom wall limiting surface, the drive housing has a housing limiting surface, the housing limiting surface is away from the valve port relative to the bottom wall limiting surface, the end face of the drive housing and the bottom wall limiting surface cooperate, and the end face of the preload nut abuts against the housing limiting surface so that the end face of the drive housing presses against the bottom wall limiting surface.

[0016] Furthermore, the valve body component also includes a pre-tightening sleeve, which is installed inside the valve seat. The pre-tightening sleeve has an assembly hole. The two ends of the valve core structure are a rotating end and a sealing end, respectively. The rotating end is rotatably engaged with the assembly hole. The pre-tightening sleeve and the valve core structure are axially limited and engaged. The sealing end opens and closes the valve port by rotating the valve, and the driving component drives the rotating end to rotate.

[0017] Furthermore, the valve body component also includes a thrust bearing, the valve core structure has a thrust limiting surface, the two ends of the thrust bearing are respectively limited and matched with the thrust limiting surface and the end face of the preload sleeve, the preload sleeve and the valve seat are threadedly connected, and the preload sleeve applies a force toward the valve port to the valve core structure through the thrust bearing.

[0018] In this design, the valve seat in the connecting seat and valve body assembly are separate structures. This allows the connecting seat and valve seat to be machined separately, avoiding the complex one-piece shell structure found in existing designs. The separate machining of the connecting seat and valve seat in this design results in shorter parts, facilitating the machining of the internal structure and reducing the need for deep cutting tools, thus minimizing breakage and reducing machining difficulty. After machining, the valve seat and drive component are connected to the connecting seat, achieving the assembly of the electric shut-off valve. Therefore, this design solves the problem of the difficulty in machining a one-piece shell structure in electric shut-off valves. Attached Figure Description

[0019] 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:

[0020] Figure 1 A schematic diagram of the structure of the electric shut-off valve provided in an embodiment of the present invention is shown;

[0021] Figure 2 It shows Figure 1 A schematic diagram of the connector in the diagram;

[0022] Figure 3 It shows Figure 1 A cross-sectional view of the connector in the diagram.

[0023] The above figures include the following reference numerals:

[0024] 100. Valve body components; 130. Valve body sealing ring; 160. Thrust bearing;

[0025] 210. Valve seat; 202. Valve port; 220. Preload sleeve; 221. Assembly hole;

[0026] 300. Valve core structure; 301. Thrust limiting surface;

[0027] 400. Drive component; 440. Drive housing; 441. Housing limiting surface; 450. Housing sealing ring;

[0028] 500, Connecting seat; 501, Bottom wall limiting surface; 504, Connecting step surface; 530, First connecting section; 531, First connecting hole; 540, Second connecting section; 541, Second connecting hole;

[0029] 610. Preload nut. Detailed Implementation

[0030] 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.

[0031] like Figures 1 to 3As shown, an embodiment of this utility model provides an electric shut-off valve, including a drive component 400, a valve body component 100, and a connecting seat 500. The valve body component 100 includes a valve seat 210 and a valve core structure 300 rotatably disposed within the valve seat 210. A valve port 202 is provided within the valve seat 210. The valve core structure 300 opens and closes the valve port 202 by rotation. One end of the connecting seat 500 is connected to the drive component 400, and the other end of the connecting seat 500 is connected to the valve seat 210. The drive component 400 is connected to the valve core structure 300 and drives the valve core structure 300 to rotate.

[0032] In this design, the connecting seat 500 and the valve seat 210 in the valve body component 100 are separate structures. This allows the connecting seat 500 and valve seat 210 to be machined independently, avoiding the complex, one-piece housing structure found in existing designs. By machining the connecting seat 500 and valve seat 210 separately, the shorter length of each part facilitates the machining of the internal structure, and the cutting tools do not need to penetrate deeply, reducing the risk of breakage and thus lowering the machining difficulty. After machining, the valve seat 210 and the drive component 400 are connected to the connecting seat 500, completing the assembly of the electric shut-off valve. Therefore, this design solves the problem of the difficulty in machining a one-piece housing structure in an electric shut-off valve.

[0033] like Figure 2 and Figure 3 As shown, the connector 500 includes a first connecting segment 530 and a second connecting segment 540 connected to each other. The first connecting segment 530 has a first connecting hole 531, and the second connecting segment 540 has a second connecting hole 541. A portion of the drive component 400 is located within the first connecting hole 531 and is in a limiting fit, and a portion of the valve seat 210 is located within the second connecting hole 541 and is in a limiting fit. The installation of the drive component 400 and the valve seat 210 is achieved through the fit between the first connecting hole 531 and the drive component 400, and the fit between the second connecting hole 541 and the valve seat 210.

[0034] Specifically, the inner diameter of the first connecting hole 531 is larger than the inner diameter of the second connecting hole 541, and the transition position between the first connecting hole 531 and the second connecting hole 541 has a bottom wall limiting surface 501, which abuts against the driving component 400. In this way, the relative axial positioning of the connecting seat 500 and the driving component 400 is achieved through the cooperation of the bottom wall limiting surface 501 and the driving component 400.

[0035] The second connecting hole 541 is a stepped hole, and the inner wall of the second connecting hole 541 has a connecting stepped surface 504, which abuts against the end face of the valve seat 210. In this way, the connection stepped surface 504 and the valve seat 210 are matched to achieve relative axial positioning of the connecting seat 500 and the valve seat 210.

[0036] like Figure 3 As shown, a stepped structure is formed between the outer peripheral surfaces of the first connecting segment 530 and the second connecting segment 540. The outer diameter of the first connecting segment 530 is larger than the outer diameter of the second connecting segment 540, which can reduce the radial dimension of the second connecting segment 540, reduce the amount of material used, and reduce the volume of the connecting seat 500.

[0037] like Figure 1 and Figure 2 As shown, the second connecting hole 541 and the valve seat 210 are threaded together. At least one of the outer peripheral surfaces of the first connecting section 530 and the second connecting section 540 is a polygonal surface, which is used to mate with a rotating tool. With the above configuration, it is convenient to mate the connecting seat 500 with tools such as wrenches, thereby facilitating the rotation of the connecting seat 500 for assembly and disassembly.

[0038] The connecting seat 500 and the valve seat 210 are sealed together to prevent leakage at the connection point between them.

[0039] Specifically, the valve body component 100 also includes a valve body sealing ring 130, which is located between the connecting seat 500 and the valve seat 210. By providing the valve body sealing ring 130, a reliable seal is achieved between the connecting seat 500 and the valve seat 210. Where space permits, multiple valve body sealing rings 130 can be provided to improve the sealing effect.

[0040] The connecting seat 500 and the valve seat 210 are connected by threads. The threaded connection method makes disassembly and assembly convenient and the connection reliable.

[0041] like Figure 1 As shown, there is a sealed fit between the connecting seat 500 and the drive component 400. This prevents fluid leakage from the electric shut-off valve at the connection point between the connecting seat 500 and the drive component 400.

[0042] Specifically, the drive component 400 includes a drive housing 440 and a housing sealing ring 450. A connecting seat 500 is connected to the drive housing 440, and the housing sealing ring 450 is located between the inner wall of the connecting seat 500 and the outer wall of the drive housing 440. The housing sealing ring 450 achieves a seal between the inner wall of the connecting seat 500 and the outer wall of the drive housing 440. A groove may be provided on the inner wall of the connecting seat 500 or the outer wall of the drive housing 440 to house the housing sealing ring 450.

[0043] like Figure 1As shown, the electric shut-off valve also includes a preload nut 610. The connecting seat 500 has internal threads, and the preload nut 610 has external threads. The connecting seat 500 and the preload nut 610 are threadedly connected. The preload nut 610 is sleeved on the drive housing 440 of the drive component 400 and engages with the drive housing 440 for limiting. The preload nut 610 achieves radial and axial limiting of the drive housing 440, thereby realizing the fixed connection between the drive housing 440 and the connecting seat 500. Furthermore, the threaded connection of the preload nut 610 to the connecting seat 500 facilitates the assembly and disassembly of the drive component 400.

[0044] like Figure 1 and Figure 3 As shown, the connecting seat 500 has a bottom wall limiting surface 501, and the drive housing 440 has a housing limiting surface 441. The housing limiting surface 441 is away from the valve port 202 relative to the bottom wall limiting surface 501. The end face of the drive housing 440 mates with the bottom wall limiting surface 501, and the end face of the preload nut 610 abuts against the housing limiting surface 441, so that the end face of the drive housing 440 presses against the bottom wall limiting surface 501. Through the above arrangement, the drive housing 440 is clamped between the preload nut 610 and the connecting seat 500, thereby fixing the drive housing 440 and preventing relative rotation between the drive housing 440 and the connecting seat 500 during use of the electric shut-off valve, ensuring the transmission reliability of the drive component 400.

[0045] Furthermore, such as Figure 1 As shown, the valve body component 100 also includes a pre-tightening sleeve 220, which is installed inside the valve seat 210. The pre-tightening sleeve 220 has an assembly hole 221. The two ends of the valve core structure 300 are a rotating end and a sealing end, respectively. The rotating end is rotatably engaged with the assembly hole 221. The pre-tightening sleeve 220 and the valve core structure 300 are axially limited and engaged. The sealing end is driven to rotate by rotating the valve port 202, and the driving component 400 drives the rotating end to rotate.

[0046] After installing the valve core structure 300, the preload sleeve 220 is installed to limit the axial movement of the valve core structure 300, preventing internal leakage caused by incomplete closure of the valve port 202 due to axial movement. Furthermore, the assembly hole 221 within the preload sleeve 220 serves to limit and guide the valve core structure 300.

[0047] Furthermore, the valve body component 100 also includes a thrust bearing 160, and the valve core structure 300 has a thrust limiting surface 301. The two ends of the thrust bearing 160 are respectively limited and engaged with the thrust limiting surface 301 and the end face of the preload sleeve 220. The preload sleeve 220 and the valve seat 210 are threadedly connected. The preload sleeve 220 applies a force toward the valve port 202 to the valve core structure 300 through the thrust bearing 160.

[0048] By setting the thrust bearing 160, the valve core structure 300 can be axially limited without direct contact between the preload sleeve 220 and the valve core structure 300, thereby avoiding wear caused by friction applied to the preload sleeve 220 when the valve core structure 300 rotates.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] 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.

[0053] 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.

[0054] 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 drive component (400), a valve body component (100), and a connecting seat (500). The valve body component (100) includes a valve seat (210) and a valve core structure (300) rotatably disposed within the valve seat (210). A valve port (202) is provided within the valve seat (210). The valve core structure (300) opens and closes the valve port (202) by rotation. One end of the connecting seat (500) is connected to the drive component (400), and the other end of the connecting seat (500) is connected to the valve seat (210). The drive component (400) is connected to the valve core structure (300) and drives the valve core structure (300) to rotate.

2. The electric shut-off valve according to claim 1, characterized in that, The connecting seat (500) includes a first connecting segment (530) and a second connecting segment (540) that are connected to each other. The first connecting segment (530) has a first connecting hole (531), and the second connecting segment (540) has a second connecting hole (541). A portion of the driving component (400) is located in the first connecting hole (531) and is in a limiting fit. A portion of the valve seat (210) is located in the second connecting hole (541) and is in a limiting fit.

3. The electric shut-off valve according to claim 2, characterized in that, The inner diameter of the first connecting hole (531) is larger than the inner diameter of the second connecting hole (541), and the transition position between the first connecting hole (531) and the second connecting hole (541) has a bottom wall limiting surface (501), which abuts against the driving component (400); and / or, The second connecting hole (541) is a stepped hole, and the inner wall of the second connecting hole (541) has a connecting stepped surface (504), which abuts against the end face of the valve seat (210).

4. The electric shut-off valve according to claim 2, characterized in that, A stepped structure is formed between the outer peripheral surface of the first connecting segment (530) and the outer peripheral surface of the second connecting segment (540), and the outer diameter of the first connecting segment (530) is larger than the outer diameter of the second connecting segment (540); and / or, The second connecting hole (541) and the valve seat (210) are threaded together. At least one of the outer peripheral surfaces of the first connecting segment (530) and the second connecting segment (540) is a polygonal surface, which is used to cooperate with a rotary tool.

5. The electric shut-off valve according to claim 1, characterized in that, The connecting seat (500) and the valve seat (210) are sealed together.

6. The electric shut-off valve according to claim 5, characterized in that, The valve body component (100) also includes a valve body sealing ring (130), which is located between the connecting seat (500) and the valve seat (210).

7. The electric shut-off valve according to claim 1, characterized in that, The connecting seat (500) and the driving component (400) are sealed together.

8. The electric shut-off valve according to claim 7, characterized in that, The drive component (400) includes a drive housing (440) and a housing sealing ring (450). The connecting seat (500) is connected to the drive housing (440), and the housing sealing ring (450) is located between the inner wall of the connecting seat (500) and the outer wall of the drive housing (440).

9. The electric shut-off valve according to claim 1, characterized in that, The electric shut-off valve also includes a preload nut (610), the connecting seat (500) has an internal thread, the preload nut (610) has an external thread, the connecting seat (500) and the preload nut (610) are threadedly connected, the preload nut (610) is sleeved on the drive housing (440) of the drive component (400) and is limitedly engaged with the drive housing (440).

10. The electric shut-off valve according to claim 9, characterized in that, The connecting seat (500) has a bottom wall limiting surface (501), and the driving housing (440) has a housing limiting surface (441). The housing limiting surface (441) is away from the valve port (202) relative to the bottom wall limiting surface (501). The end face of the driving housing (440) and the bottom wall limiting surface (501) are engaged. The end face of the preload nut (610) abuts against the housing limiting surface (441) so that the end face of the driving housing (440) presses against the bottom wall limiting surface (501).

11. The electric shut-off valve according to claim 1, characterized in that, The valve body component (100) further includes a pre-tightening sleeve (220), which is installed in the valve seat (210). The pre-tightening sleeve (220) has an assembly hole (221). The two ends of the valve core structure (300) are a rotating end and a sealing end, respectively. The rotating end is rotatably engaged with the assembly hole (221). The pre-tightening sleeve (220) and the valve core structure (300) are axially limited and engaged. The sealing end opens and closes the valve port (202) by rotation. The driving component (400) drives the rotating end to rotate.

12. The electric shut-off valve according to claim 11, characterized in that, The valve body component (100) further includes a thrust bearing (160), the valve core structure (300) has a thrust limiting surface (301), the two ends of the thrust bearing (160) are respectively limited and engaged with the thrust limiting surface (301) and the end face of the preload sleeve (220), the preload sleeve (220) and the valve seat (210) are threadedly connected, and the preload sleeve (220) applies a force toward the valve port (202) to the valve core structure (300) through the thrust bearing (160).

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