Connecting rod component, valve element assembly and electric valve

Abstract

The connecting rod component is arranged in a valve cavity of the electrically operated valve, the connecting rod component comprises a connecting rod and a guide frame which are connected with each other in the axis direction of the valve cavity, the first end of the connecting rod is formed on the guide frame in an injection molding mode, and the guide frame is used for installing a valve element component of the electrically operated valve. The connecting rod component is used for driving the valve element component to move in the valve cavity. By means of the scheme, the problem that in the prior art, connection between the connecting rod and the guide frame of the connecting rod component is prone to loosening, and the moving stability of the valve element component is affected can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to a connecting rod component, a valve core component and an electric valve. Background Art

[0002] The electric valve generally includes a valve body, a drive assembly and a valve core assembly. The valve body is provided with a valve cavity, a first communication hole and a second communication hole, the first communication hole and the second communication hole are respectively connected to the valve cavity, and the valve core assembly is movably arranged in the valve cavity to connect or isolate the first communication hole and the second communication hole. The drive assembly is arranged in the valve cavity to drive the valve core assembly to move.

[0003] Generally, the valve core assembly includes a connecting rod component and a valve core component. The connecting rod component includes a connecting rod and a guide frame that are connected to each other. The connecting rod and the guide frame are separate and connected to each other through fasteners. The valve core component is installed on the guide frame. The driving assembly moves by driving the connecting rod so that the connecting rod component drives the valve core component to move. After long-term use, the connection between the connecting rod and the guide frame may become loose, affecting the stability of the movement process of the valve core component and the stability of the operation of the electric valve. Utility Model Content

[0004] The utility model provides a connecting rod component, a valve core assembly and an electric valve, so as to solve the problem that the connection between the connecting rod and the guide frame of the connecting rod component in the prior art is loose, thus affecting the stability of the moving process of the valve core component.

[0005] According to one aspect of the utility model, a connecting rod component is provided, which is arranged in the valve cavity of an electric valve. The connecting rod component includes a connecting rod and a guide frame connected to each other along the axial direction of the valve cavity. The first end of the connecting rod is injection molded on the guide frame. The guide frame is used to install the valve core component of the electric valve. The connecting rod component is used to drive the valve core component to move in the valve cavity.

[0006] Furthermore, a mounting groove is arranged on the end surface of the first end of the connecting rod, and one end of the guide frame is inserted into the mounting groove and connected to the connecting rod.

[0007] Furthermore, a clamping structure is provided between the connecting rod and the guide frame, and the connecting rod and the guide frame are clamped together through the clamping structure.

[0008] Furthermore, the clamping structure includes: a clamping hole, which is arranged on one end of the guide frame passing through the installation groove; a clamping part, which is arranged in the installation groove and is integrally formed with the connecting rod, and the clamping part passes through the clamping hole and is clamped with the clamping hole.

[0009] Furthermore, a dimension of the engaging hole along the length direction of the connecting rod component is greater than a dimension of the connecting rod component along the width direction of the connecting rod component.

[0010] Furthermore, the connecting rod includes a connecting rod and a connecting block arranged in sequence along the length direction, the transverse cross-sectional area of ​​the connecting block is larger than the transverse cross-sectional area of ​​the connecting rod, and the mounting groove is arranged on the end surface of the connecting block away from the connecting rod.

[0011] Furthermore, a threaded structure is provided at one end of the connecting rod away from the guide frame.

[0012] Furthermore, the threaded structure includes a threaded hole, and the threaded hole is arranged on an end surface of the connecting rod away from the guide frame.

[0013] Furthermore, a rotation-stopping structure is provided on the outer side wall of the connecting rod component to prevent the connecting rod component from rotating in the valve cavity.

[0014] Furthermore, a limiting structure is provided on the outer side wall of the connecting rod component to limit the movement stroke of the connecting rod component in the valve cavity.

[0015] Furthermore, a mounting opening is provided on the guide frame, and the mounting opening is provided through the guide frame in a vertical direction perpendicular to the extension direction of the connecting rod component, and the mounting opening is used for installing the valve core component.

[0016] According to one aspect of the utility model, a valve core assembly is provided, which includes: the above-mentioned connecting rod component; a valve core component installed on a guide frame of the connecting rod component, and the valve core component and the connecting rod component move synchronously in the valve cavity of the electric valve.

[0017] According to another aspect of the utility model, an electric valve is provided, which includes: a valve body, provided with a valve cavity, a first connecting hole and a second connecting hole, the first connecting hole and the second connecting hole are respectively connected to the valve cavity; the above-mentioned valve core assembly, the valve core assembly is movably arranged in the valve cavity, and the valve core component of the valve core assembly is used to connect or isolate the first connecting hole and the second connecting hole; a driving assembly, arranged in the valve cavity, and located at an end of the connecting rod of the valve core assembly away from the valve core component, the driving assembly is connected to the connecting rod driving to drive the valve core assembly to move.

[0018] By applying the technical solution of the utility model, the first end of the connecting rod is injection molded on the guide frame, which can ensure the stability of the connection between the connecting rod and the guide frame and reduce or avoid the possibility of loose connection between the connecting rod and the guide frame. In the traditional technical solution, the connecting rod and the guide frame are connected by fasteners. After the electric valve has been running for a long time, the possibility of fastener connection loosening is very likely to occur. Compared with the traditional technical solution, the setting of this solution can increase the stability of the connection between the connecting rod and the guide frame, and the connecting rod is injection molded on the guide frame, which is more convenient to assemble. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings constituting part of the present application are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0020] Figure 1 The schematic diagram of the structure of the electric valve provided by the embodiment of the utility model is shown;

[0021] Figure 2 A schematic structural diagram of a connecting rod component provided by an embodiment of the utility model is shown;

[0022] Figure 3 A cross-sectional view of a connecting rod component provided by an embodiment of the utility model is shown;

[0023] Figure 4 A side view of a connecting rod component provided by an embodiment of the utility model is shown;

[0024] Figure 5 A top view of a connecting rod component provided by an embodiment of the utility model is shown;

[0025] Figure 6 A schematic diagram of the structure of the guide frame provided by an embodiment of the utility model is shown;

[0026] Figure 7 A front view of a guide frame provided in an embodiment of the utility model is shown.

[0027] The above drawings include the following reference numerals:

[0028] 10. Connecting rod;

[0029] 101. mounting groove; 102. clamping portion; 103. first limiting structure;

[0030] 11. Connecting rod; 1101. Anti-rotation surface;

[0031] 12. Connecting block;

[0032] 20. Guide frame; 201. Card connection hole; 202. Mounting port; 203. Second limiting structure;

[0033] 21. a first plate; 22. a second plate;

[0034] 30. Valve core parts;

[0035] 31. first valve core; 32. second valve core; 33. elastic part;

[0036] 40. Drive assembly;

[0037] 01. Valve body; 011. Valve chamber; 012. First connecting hole; 013. Second connecting hole. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means a limitation on the utility model and its application or use. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0039] like Figures 1 to 5 As shown, the embodiment of the utility model provides a connecting rod component, which is arranged in the valve cavity 011 of the electric valve. The connecting rod component includes a connecting rod 10 and a guide frame 20 connected to each other along the axial direction of the valve cavity 011. The connecting rod 10 is an injection molded part. The first end of the connecting rod 10 is injection molded on the guide frame 20. The guide frame 20 is used to install the valve core component 30 of the electric valve. The connecting rod component is used to drive the valve core component 30 to move in the valve cavity 011.

[0040] By applying the technical solution of the utility model, the first end of the connecting rod 10 is injection molded on the guide frame 20, which can ensure the stability of the connection between the connecting rod 10 and the guide frame 20, and reduce or avoid the possibility of loose connection between the connecting rod 10 and the guide frame 20. In the traditional technical solution, the connecting rod and the guide frame are connected by fasteners. After the electric valve has been running for a long time, the possibility of loose connection of the fasteners is very likely to occur. Compared with the traditional technical solution, the setting of this solution can increase the stability of the connection between the connecting rod 10 and the guide frame 20, and the connecting rod 10 is injection molded on the guide frame 20, which is more convenient to assemble.

[0041] Specifically, the guide frame 20 is a plate-shaped structure, the length direction of the guide frame 20 is the same as the length direction of the connecting rod 10 , and the width direction of the guide frame 20 is perpendicular to the length direction of the connecting rod 10 . Figure 2 In the figure, the Z direction is the length direction of the connecting rod 10 and the guide frame 20, the X direction is the width direction of the connecting rod 10 and the guide frame 20, and the Y direction is the thickness direction of the connecting rod 10 and the guide frame 20.

[0042] like Figures 2 to 4 As shown, in this embodiment, a mounting groove 101 is provided on the end surface of the first end of the connecting rod 10, and one end of the guide frame 20 is inserted into the mounting groove 101 and connected to the connecting rod 10. Such a configuration can increase the contact area between the connecting rod 10 and the guide frame 20, and further improve the stability of the connection between the connecting rod 10 and the guide frame 20.

[0043] Furthermore, a clamping structure is provided between the connecting rod 10 and the guide frame 20, and the connecting rod 10 and the guide frame 20 are clamped together by the clamping structure. The provision of the clamping structure can further reduce the possibility of separation of the connecting rod 10 and the guide frame 20, and further increase the stability of the connection between the connecting rod 10 and the guide frame 20.

[0044] This solution does not limit the specific form of the clamping structure.

[0045] In the embodiment of the present scheme, the clamping structure includes a clamping hole 201 and a clamping portion 102 that are clamped together. The shape of the clamping portion 102 is adapted to the shape of the clamping hole 201. The clamping hole 201 is provided on one end of the guide frame 20 that penetrates the mounting groove 101. The clamping portion 102 is provided in the mounting groove 101 and is integrally formed with the connecting rod 10. The clamping portion 102 penetrates the clamping hole 201 and is clamped with the clamping hole 201.

[0046] In other embodiments of the present scheme, the snap-in hole 201 is arranged on the side wall of the mounting groove 101, the snap-in portion 102 is arranged on the side wall of one end of the guide frame 20 passing through the mounting groove 101, the snap-in portion 102 is integrally formed with the guide frame 20, and the snap-in portion 102 is snap-fitted with the snap-in hole 201.

[0047] The present solution does not limit the specific shape of the clamping hole 201, wherein the shape may be a circular hole, a special-shaped hole, a polygonal hole or the like.

[0048] like Figure 3 , Figure 6 and Figure 7 As shown, in this embodiment, the clamping hole 201 is a waist-shaped hole, the length direction of the waist-shaped hole is the same as the length direction of the connecting rod part, and the dimension A of the waist-shaped hole along the length direction of the connecting rod part is greater than the dimension B of the waist-shaped hole along the width direction of the connecting rod part. Such an arrangement can increase the tensile strength of the pull rod part, and the dimension of the waist-shaped hole along the length direction of the connecting rod part is greater than the dimension along the width direction of the connecting rod part. Such an arrangement can provide greater tensile strength while saving space.

[0049] Furthermore, the present solution does not impose any restriction on the specific number of the clamping structures. In the present embodiment, two groups of the clamping structures are provided, and the two groups of the clamping structures are spaced apart and distributed along the width direction of the guide frame 20 .

[0050] like Figures 2 to 4As shown, in this embodiment, the connecting rod 10 includes a connecting rod 11 and a connecting block 12 arranged in sequence along the length direction, the lateral cross-sectional area of ​​the connecting block 12 is larger than the lateral cross-sectional area of ​​the connecting rod 11, and the mounting groove 101 is arranged on the end surface of the connecting block 12 away from the connecting rod 11. Such an arrangement can ensure the structural strength of the connecting block 12 and improve the stability of the connection between the connecting rod 10 and the guide frame 20.

[0051] like Figure 2 and Figure 3 As shown, further, along the width direction of the connecting rod component, the two ends of the mounting groove 101 extend to the two end surfaces of the connecting block 12 respectively. The guide frame 20 includes a first plate body 21 and a second plate body 22 arranged in sequence along the length direction, and the width of the first plate body 21 is smaller than the width of the second plate body 22. The clamping hole 201 is arranged on the first plate body 21, and the first plate body 21 is penetrated in the mounting groove 101. Along the width direction of the guide frame 20, the two ends of the first plate body 21 are respectively located outside the mounting groove 101. Such a configuration can improve the convenience of injection molding the connecting rod 10.

[0052] Furthermore, a threaded structure is provided at one end of the connecting rod 10 away from the guide frame 20. The provision of the threaded structure can facilitate the threaded cooperation between the driving end of the structure of the electric valve and the threaded structure to drive the connecting rod component to move.

[0053] In the embodiment of this solution, the threaded structure includes a threaded hole, which is arranged on the end surface of the connecting rod 10 away from the guide frame 20. The threaded hole is formed during the injection molding process of the connecting rod 10, and such a configuration can facilitate the processing and molding of the threaded hole.

[0054] In other embodiments of the present solution, the threaded structure includes an external thread, and the external thread is provided on the outer peripheral surface of the end of the connecting rod 10 away from the guide frame 20 .

[0055] like Figure 2 As shown, further, a rotation-stopping structure is provided on the outer side wall of the connecting rod component to prevent the connecting rod component from rotating in the valve cavity 011. The setting of the rotation-stopping structure can ensure that the connecting rod component can only move along the axial direction of the valve cavity 011, avoid the connecting rod component from rotating during the movement, and improve the stability of the connecting rod component during the movement.

[0056] In this embodiment, the anti-rotation structure includes an anti-rotation surface 1101, which is a plane and the extension direction of the anti-rotation surface 1101 is the same as the length direction of the connecting rod component. Specifically, the anti-rotation surface 1101 is arranged on the outer side wall of the connecting rod 11. The arrangement of the anti-rotation surface 1101 has a simple structure and is easy to process.

[0057] In this embodiment, the outer contour of the cross section of the connecting rod 11 is a polygon, and the multiple outer side walls of the connecting rod 11 respectively form a plurality of anti-rotation surfaces 1101 .

[0058] Furthermore, a limiting structure is provided on the outer side wall of the connecting rod component to limit the movement stroke of the connecting rod component in the valve cavity 011. The setting of the limiting structure can limit the movement stroke of the connecting rod component in the valve cavity 011, reduce the situation where the connecting rod component moves too much, and ensure the accuracy of the movement of the connecting rod component in the valve cavity 011.

[0059] like Figure 2 and Figure 3 As shown, in this embodiment, the limiting structure includes a first limiting structure 103 and a second limiting structure 203. The first limiting structure 103 and the second limiting structure 203 are spaced apart along the length direction of the connecting rod component to respectively limit the upward displacement and downward displacement of the connecting rod component in the axial direction of the valve cavity 011.

[0060] Specifically, the step surface between the connecting rod 11 and the connecting block 12 forms the first limiting structure 103, and the end surface of the guide frame 20 away from the connecting rod 10 forms the second limiting structure 203. This arrangement has a simple structure and does not require additional components.

[0061] like Figure 1 and Figure 7 As shown, in this embodiment, the guide frame 20 is provided with an installation opening 202, which is a circular hole, and is arranged through the guide frame 20 along a vertical direction perpendicular to the extension direction of the connecting rod component, and the installation opening 202 is used to install the valve core component 30. In this embodiment, the installation opening 202 is arranged through the guide frame 20 along the thickness direction of the guide frame 20. The installation opening 202 is simple in structure and is convenient for assembling the valve core component 30.

[0062] like Figure 1 As shown, the embodiment of the utility model also provides a valve core assembly, which includes a valve core component 30 and the connecting rod component of the above embodiment. The valve core component 30 is installed on the guide frame 20 through the installation port 202, and the valve core component 30 and the connecting rod component move synchronously in the valve cavity 011 of the electric valve.

[0063] In this embodiment, the valve core component 30 includes a first valve core 31, a second valve core 32 and an elastic portion 33. The first valve core 31 and the second valve core 32 abut against each other and form a cylindrical structure. The elastic portion 33 is arranged between the first valve core 31 and the second valve core 32 and provides a force to move the first valve core 31 and the second valve core 32 away from each other. Such an arrangement can facilitate the assembly of the valve core component 30 and ensure the sealing effect of the first valve core 31 and the second valve core 32 on the connecting hole of the electric valve.

[0064] like Figure 1 As shown, the present utility model also provides an electric valve, which includes a valve body 01, a valve core assembly of the above embodiment, and a drive assembly 40. The valve body 01 is provided with a valve cavity 011, a first connecting hole 012 and a second connecting hole 013, and the first connecting hole 012 and the second connecting hole 013 are respectively connected to the side of the valve cavity 011. The valve core assembly is movably arranged in the valve cavity 011, and the valve core component 30 of the valve core assembly is used to connect or block the first connecting hole 012 and the second connecting hole 013. The drive assembly 40 is arranged in the valve cavity 011 and is located at one end of the connecting rod 10 away from the valve core component 30. The drive assembly 40 is connected to the connecting rod 10 to drive the valve core assembly to move. In this embodiment, the first valve core 31 and the second valve core 32 are respectively arranged corresponding to the first connecting hole 012 and the second connecting hole 013 to connect or block the first connecting hole 012 and the second connecting hole 013.

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0066] Unless otherwise specifically stated, the relative arrangement, numerical expressions and numerical values ​​of the parts and steps set forth in these embodiments do not limit the scope of the utility model. At the same time, it should be understood that, for ease of description, the sizes of the various parts shown in the accompanying drawings are not drawn according to the actual proportional relationship. The technology, method and equipment known to those of ordinary skill in the relevant art may not be discussed in detail, but in appropriate cases, the technology, method and equipment should be considered as a part of the specification. In all examples shown and discussed here, any specific value should be interpreted as being only exemplary, rather than as a limitation. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters represent similar items in the following drawings, and therefore, once a certain item is defined in an accompanying drawing, it does not need to be further discussed in subsequent drawings.

[0067] In the description of the present utility model, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings, and are only for the convenience of describing the present utility model and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction, and therefore cannot be understood as limiting the scope of protection of the present utility model; the directional words "inside and outside" refer to the inside and outside relative to the contours of each component itself.

[0068] For ease of description, spatially relative terms such as "above", "above", "on the upper surface of", "above", etc. may be used here to describe the spatial positional relationship between a device or feature and other devices or features as shown in the figure. It should be understood that spatially relative terms are intended to include different orientations of the device in use or operation in addition to the orientation described in the figure. For example, if the device in the accompanying drawings is inverted, the device described as "above other devices or structures" or "above other devices or structures" will be positioned as "below other devices or structures" or "below other devices or structures". Thus, the exemplary term "above" can include both "above" and "below". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used here are interpreted accordingly.

[0069] In addition, it should be noted that the use of terms such as "first" and "second" to limit components is only to facilitate the distinction between corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be understood as limiting the scope of protection of the utility model.

[0070] The above description is only the preferred embodiment of the utility model, and is not intended to limit the utility model. For those skilled in the art, the utility model can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A connecting rod component, arranged in a valve chamber (011) of an electric valve, characterized in that: The connecting rod component comprises a connecting rod (10) and a guide frame (20) which are interconnected along the axial direction of the valve cavity (011); the first end of the connecting rod (10) is injection molded on the guide frame (20); the guide frame (20) is used to install the valve core component (30) of the electric valve; and the connecting rod component is used to drive the valve core component (30) to move in the valve cavity (011).

2. The connecting rod component according to claim 1, characterized in that: A mounting groove (101) is provided on the end surface of the first end of the connecting rod (10), and one end of the guide frame (20) is inserted into the mounting groove (101) and connected to the connecting rod (10).

3. The connecting rod component according to claim 2, characterized in that: A clamping structure is provided between the connecting rod (10) and the guide frame (20), and the connecting rod (10) and the guide frame (20) are clamped together via the clamping structure.

4. The connecting rod component according to claim 3, characterized in that: The clamping structure comprises: A clamping hole (201) is provided on one end of the guide frame (20) that passes through the installation groove (101); The clamping portion (102) is arranged in the installation groove (101) and is integrally formed with the connecting rod (10); the clamping portion (102) is inserted into the clamping hole (201) and is clamped with the clamping hole (201).

5. The connecting rod component according to claim 4, characterized in that: The dimension of the engaging hole (201) along the length direction of the connecting rod component is greater than the dimension along the width direction of the connecting rod component.

6. The connecting rod component according to claim 2, characterized in that: The connecting rod (10) comprises a connecting rod (11) and a connecting block (12) which are arranged in sequence along the length direction; the transverse cross-sectional area of ​​the connecting block (12) is larger than the transverse cross-sectional area of ​​the connecting rod (11); and the mounting groove (101) is arranged on an end surface of the connecting block (12) away from the connecting rod (11).

7. The connecting rod component according to claim 1, characterized in that: One end of the connecting rod (10) away from the guide frame (20) is provided with a threaded structure.

8. The connecting rod component according to claim 7, characterized in that: The threaded structure comprises a threaded hole, and the threaded hole is arranged on the end surface of the connecting rod (10) at one end away from the guide frame (20).

9. The connecting rod component according to claim 1, characterized in that: A rotation-stop structure is provided on the outer side wall of the connecting rod component to prevent the connecting rod component from rotating in the valve cavity (011).

10. The connecting rod component according to claim 1, characterized in that: A limiting structure is provided on the outer side wall of the connecting rod component to limit the movement stroke of the connecting rod component in the valve cavity (011).

11. The connecting rod component according to claim 1, characterized in that: The guide frame (20) is provided with a mounting opening (202), the mounting opening (202) being arranged to penetrate the guide frame (20) along a vertical direction perpendicular to the extension direction of the connecting rod component, and the mounting opening (202) is used to mount the valve core component (30).

12. A valve core assembly, characterized in that: include: The connecting rod component according to any one of claims 1 to 11; The valve core component (30) is mounted on the guide frame (20) of the connecting rod component, and the valve core component (30) and the connecting rod component move synchronously in the valve cavity (011) of the electric valve.

13. An electric valve, characterized in that: include: A valve body (01) is provided with a valve cavity (011), a first communicating hole (012) and a second communicating hole (013), wherein the first communicating hole (012) and the second communicating hole (013) are respectively connected to the valve cavity (011); The valve core assembly according to claim 12, wherein the valve core assembly is movably disposed in the valve cavity (011), and the valve core component (30) of the valve core assembly is used to connect or block the first connecting hole (012) and the second connecting hole (013); The driving assembly (40) is arranged in the valve cavity (011) and is located at an end of the connecting rod (10) of the valve core assembly away from the valve core component (30). The driving assembly (40) is drivingly connected to the connecting rod (10) to drive the valve core assembly to move.

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