Electric valve

Abstract

The utility model provides an electrically operated valve, which comprises a valve body, a valve core, a first valve core, a second valve core, a first valve core, a second valve core, a first valve core, a second valve core, a first valve core and a second valve core, the valve element assembly comprises a connecting rod component and a valve element component, and the connecting rod component is movably arranged in the valve cavity; the valve element component is installed on the connecting rod component and moves in the valve cavity along with the connecting rod component so that the first communicating hole and the second communicating hole can be communicated or separated. The rotor part is located at the end, away from the valve element part, of the connecting rod part, and the rotor part is rotationally arranged in the valve cavity; one end of the connecting piece is fixedly arranged on the rotor component, the other end of the connecting piece is in threaded fit with the connecting rod component so as to drive the connecting rod component to move in the valve cavity, and the connecting piece is limited in the axis direction of the valve cavity relative to the valve body. By means of the scheme, the problems that in the prior art, when the valve element assembly is driven through a piston component, the structure of the piston component is complex, and operation convenience is poor can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of electric valves, in particular to an electric valve. Background Art

[0002] The electric valve usually includes a valve body, a piston component and a valve core assembly. The valve body is 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 valve core assembly is movably arranged in the valve cavity to connect or isolate the first connecting hole and the second connecting hole. The piston component is arranged in the valve cavity. The piston component cooperates with the valve core component to drive the valve core assembly to move.

[0003] To drive the valve core assembly to move by the piston component, it is necessary to introduce a high-pressure medium into one side of the piston component and form a pressure difference on both sides of the piston component to drive the valve core assembly to move. However, the structural design of the piston component is relatively complicated, and the driving method of driving the valve core assembly to move by forming a pressure difference is not convenient. Utility Model Content

[0004] The utility model provides an electric valve to solve the problem of poor convenience in driving a valve core component in the prior art.

[0005] The utility model provides an electric valve, which comprises: a valve body, which is 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; a valve core assembly, which comprises a connecting rod part and a valve core part, the connecting rod part is movably arranged in the valve cavity; the valve core part is installed on a guide frame, and the valve core part moves with the connecting rod part in the valve cavity to connect or block the first connecting hole and the second connecting hole; a rotor part, which is located at one end of the connecting rod part away from the valve core part, and the rotor part is rotatably arranged in the valve cavity; a connecting piece, one end of the connecting piece is fixedly arranged on the rotor part, and the other end of the connecting piece is threadedly matched with the connecting rod part to drive the connecting rod part to move in the valve cavity, and the connecting piece is limited relative to the valve body in the axial direction of the valve cavity.

[0006] Furthermore, the connecting rod component includes a connecting rod and a guide frame arranged in sequence along the direction from the rotor component to the valve core component, the connecting rod and the guide frame are fixedly connected, the connecting rod is threadedly matched with the connecting piece, and the valve core component is installed on the guide frame.

[0007] Furthermore, the electric valve also includes: a valve cover, which is arranged in the valve cavity, and the connecting rod is guided and matched with the valve cover.

[0008] Furthermore, the valve cover is provided with a penetration hole, which penetrates the valve cover along the axial direction of the valve cavity, and the connecting rod is movably penetrated in the penetration hole, and the connecting rod is guided and matched with the penetration hole.

[0009] Furthermore, a first anti-rotation structure is provided on the side wall of the through hole, and a second anti-rotation structure is provided on the side wall of the connecting rod, and the first anti-rotation structure cooperates with the second anti-rotation structure to prevent rotation.

[0010] Furthermore, the valve cover divides the valve cavity into a first chamber and a second chamber distributed along the axial direction, the rotor component is located in the first chamber, and the valve core component is located in the second chamber.

[0011] Furthermore, a first balancing channel is formed between the connecting rod and the penetration hole, and two ends of the first balancing channel are respectively connected to the first chamber and the second chamber.

[0012] Furthermore, a second balancing channel is provided on the valve cover, the second balancing channel is eccentrically arranged with respect to the penetration hole, and two ends of the second balancing channel are respectively connected with the first chamber and the second chamber.

[0013] Furthermore, the penetration hole includes a guide hole and an avoidance hole which are connected in sequence along the direction from the connecting rod to the connecting piece, the aperture size of the guide hole is smaller than the aperture size of the avoidance hole, the guide hole cooperates with the connecting rod guide, and the end of the connecting piece away from the rotor component is penetrated into the guide hole through the avoidance hole and cooperates with the connecting rod thread.

[0014] Furthermore, the electric valve also includes a bearing, which is arranged in the avoidance hole. The connecting piece is rotatably inserted into the bearing, and the outer peripheral surface of the connecting piece is connected to the inner ring of the bearing.

[0015] Furthermore, a limiting portion is provided on the connecting member, and the electric valve also includes: an elastic component, which is provided on the connecting member, the bearing is located between the elastic component and the limiting portion, the elastic component and the limiting portion are respectively abutted against the bearing, and the elastic component is used to apply elastic force to the connecting member so that the limiting portion on the connecting member contacts the bearing.

[0016] Furthermore, the electric valve also includes: a valve seat, which is arranged in the valve cavity, and the valve seat is guided and matched with the valve core component.

[0017] Furthermore, an installation port is provided on the guide frame, and the valve core component includes a first valve core and a second valve core which are independent of each other. The first valve core and the second valve core are respectively installed in the installation port, the first valve core and the second valve core are abutted, the first valve core is correspondingly arranged with the first connecting hole, and the second valve core is correspondingly arranged with the second connecting hole.

[0018] Furthermore, the connecting rod component and the valve cover are limited to limit the displacement stroke of the connecting rod component in the axial direction of the valve cavity.

[0019] Furthermore, a stepped surface is provided on the side wall of the connecting rod component, and the stepped surface is used for limiting cooperation with the valve cover.

[0020] Furthermore, the first connecting hole and the second connecting hole are respectively connected to the side of the valve cavity. Along the axial direction of the valve cavity, the end of the guide frame away from the connecting rod protrudes from the valve core component, and the end of the guide frame away from the connecting rod is used to limit and cooperate with the end of the valve cavity away from the rotor component.

[0021] By applying the technical solution of the utility model, the connecting member is limited relative to the valve body in the axial direction of the valve cavity, and the rotor component rotates to drive the connecting member to rotate, that is, the connecting member does not move relative to the valve body in the axial direction of the valve cavity, and the connecting member drives the connecting rod component to move along the axial direction of the valve cavity while rotating, and the connecting rod component drives the valve core component to move along the axial direction of the valve cavity during the movement of the valve core component, so that the valve core component connects or disconnects the first connecting hole and the second connecting hole. In the traditional technical solution, it is necessary to introduce a high-pressure medium into one side of the piston component and form a pressure difference on both sides of the piston component to drive the valve core component to move. However, the structural design of the piston component is relatively cumbersome, and the driving method of driving the valve core component to move by forming a pressure difference is not convenient. Compared with the traditional technical solution, the setting of this solution drives the connecting rod component to drive the valve core component to move along the axial direction of the valve cavity through the rotor component and the connecting member, so as to realize the connection or disconnection of the first connecting hole and the second connecting hole, and realize the zero pressure difference switch valve, which has a relatively simple structure and strong convenience in operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] 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:

[0023] Figure 1 It shows a schematic structural diagram of the electric valve provided by the embodiment of the utility model when the first connecting hole and the second connecting hole are connected;

[0024] Figure 2 It shows a schematic structural diagram of the first connecting hole and the second connecting hole of the electric valve provided by the embodiment of the utility model when they are cut off;

[0025] Figure 3 A schematic structural diagram of a connecting rod component provided by an embodiment of the utility model is shown;

[0026] Figure 4 A cross-sectional view of a connecting rod component provided by an embodiment of the utility model is shown;

[0027] Figure 5 A side view of a connecting rod component provided by an embodiment of the utility model is shown;

[0028] Figure 6 A top view of a connecting rod component provided by an embodiment of the utility model is shown;

[0029] Figure 7 A schematic diagram of the structure of the guide frame provided by an embodiment of the utility model is shown;

[0030] Figure 8 A front view of a guide frame provided by an embodiment of the utility model is shown;

[0031] Fig. 9 A cross-sectional view of a valve cover provided by an embodiment of the utility model is shown;

[0032] Fig.10 Shows Fig. 9 A top view of the valve cover in FIG.

[0033] Fig.11 A cross-sectional view of another valve cover provided by an embodiment of the utility model is shown;

[0034] Fig.12 Shows Fig.11 Top view of the valve cover in FIG.

[0035] The above drawings include the following reference numerals:

[0036] 01. Valve body;

[0037] 0111, first chamber; 0112, second chamber;

[0038] 012, first connecting hole; 013, second connecting hole;

[0039] 014, first sleeve; 015, second sleeve;

[0040] 10. connecting rod; 1001. second anti-rotation surface;

[0041] 101. mounting groove; 102. clamping portion; 103. first limiting structure;

[0042] 11. Connecting rod;

[0043] 12. Connecting block;

[0044] 20. Guide frame; 201. Mounting port; 202. Clamping hole; 203. Second limiting structure;

[0045] 21. a first plate; 22. a second plate;

[0046] 30. Valve core parts;

[0047] 31. first valve core; 32. second valve core; 33. elastic part;

[0048] 40. Rotor parts;

[0049] 50. Connecting piece; 501. Limiting part;

[0050] 60. Valve cover;

[0051] 601, a penetration hole; 6010, a first anti-rotation surface; 6011, a guide hole; 6012, an avoidance hole; 6013, a groove structure;

[0052] 602, second balance channel;

[0053] 70. Bearings;

[0054] 80. Elastic components;

[0055] 90. Valve seat. DETAILED DESCRIPTION

[0056] 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.

[0057] like Figures 1 to 3 As shown, the embodiment of the utility model provides an electric valve, which includes a valve body 01, a valve core assembly, a rotor component 40 and a connecting member 50. The valve body 01 is provided with a valve cavity, 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 valve cavity. The valve core assembly includes a connecting rod component and a valve core component 30, and the connecting rod component is movably arranged in the valve cavity. The valve core component 30 is installed on the connecting rod component, and the valve core component 30 moves in the valve cavity with the connecting rod component to connect or block the first connecting hole 012 and the second connecting hole 013. The rotor component 40 is located at one end of the connecting rod component away from the valve core component 30, and the rotor component 40 is rotatably arranged in the valve cavity. One end of the connecting member 50 is fixedly arranged on the rotor component 40, and the other end of the connecting member 50 is threadedly matched with the connecting rod component to drive the connecting rod component to move in the valve cavity, and the connecting member 50 does not move relative to the valve body 01 in the axial direction of the valve cavity.

[0058] By applying the technical solution of the utility model, the connecting member 50 is limited relative to the valve body 01 in the axial direction of the valve cavity, that is, the connecting member 50 does not move relative to the valve body 01 in the axial direction of the valve cavity, and the rotor component 40 rotates to drive the connecting member 50 to rotate, and the connecting member 50 drives the connecting rod component to move along the axial direction of the valve cavity while rotating, and the connecting rod component drives the valve core component 30 to move along the axial direction of the valve cavity during the movement of the connecting rod component, so that the valve core component 30 connects or blocks the first connecting hole 012 and the second connecting hole 013. In the traditional technical solution, it is necessary to introduce a high-pressure medium into one side of the piston component and form a pressure difference on both sides of the piston component to drive the valve core assembly to move. However, the structural design of the piston component is relatively complicated, and the driving method of driving the valve core assembly to move by forming a pressure difference is not convenient. Compared with the traditional technical solutions, the setting of this solution drives the connecting rod component to drive the valve core component 30 to move along the axial direction of the valve cavity through the rotor component 40 and the connecting member 50, thereby realizing the connection or isolation of the first connecting hole 012 and the second connecting hole 013. Its structure is relatively simple and the operation is convenient.

[0059] Furthermore, the connecting rod component includes a connecting rod 10 and a guide frame 20 arranged in sequence along the direction from the rotor component 40 to the valve core component 30, and the connecting rod 10 and the guide frame 20 are fixedly connected. The connecting rod 10 is threadedly matched with the connecting piece 50, and the valve core component 30 is installed on the guide frame 20. The present solution does not limit the specific connection method between the connecting rod 10 and the guide frame 20, and the fixed connection can be achieved by fasteners, clamping, welding, etc. In the connecting rod component of this embodiment, one end of the connecting rod 10 is injection molded on the guide frame 20. Such an arrangement can reduce the possibility of loosening of the connection between the connecting rod 10 and the guide frame 20, improve the stability of the connection between the connecting rod 10 and the guide frame 20, and improve the stability of the valve core component 30 during movement. In the traditional technical solution, the connecting rod is connected to the guide frame by means of fasteners. After long-term use, the fasteners are prone to loosening, affecting the stability of the connection between the connecting rod and the guide frame. Compared with the traditional technical solution, the setting of this solution can improve 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 makes it more convenient to assemble.

[0060] like Figure 3 and Figure 4 As shown, specifically, the guide frame 20 is a plate-like 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 3 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.

[0061] like Figures 3 to 5As 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.

[0062] 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.

[0063] This solution does not limit the specific form of the clamping structure.

[0064] In the embodiment of the present solution, the clamping structure includes a clamping hole 202 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 202. The clamping hole 202 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, and the clamping portion 102 penetrates the clamping hole 202 and is clamped with the clamping hole 202.

[0065] In other embodiments of the present scheme, the snap-in hole 202 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 202.

[0066] The present solution does not limit the specific shape of the clamping hole 202, wherein the shape may be a circular hole, a special-shaped hole, a polygonal hole or the like.

[0067] like Figure 4 , Figure 7 and Figure 8 As shown, in this embodiment, the clamping hole 202 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.

[0068] 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 .

[0069] like Figures 3 to 6 As 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.

[0070] like Figures 3 to 5 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 202 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.

[0071] like Figure 1 and Figure 3 As shown, in this embodiment, the guide frame 20 is provided with an installation opening 201, 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 201 is used to install the valve core component 30. In this embodiment, the installation opening 201 is arranged through the guide frame 20 along the thickness direction of the guide frame 20. The arrangement of the installation opening 201 has a simple structure and is convenient for assembling the valve core component 30.

[0072] In this embodiment, the first connecting hole 012 and the second connecting hole 013 are respectively connected to the side of the valve cavity, and the valve core component 30 includes a first valve core 31, a second valve core 32 and an elastic part 33. The first valve core 31 and the second valve core 32 abut against each other, and the elastic part 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 can ensure the sealing effect of the first valve core 31 and the second valve core 32 on the connecting hole of the electric valve.

[0073] like Figure 1 and Figure 2 As shown, the electric valve further includes a valve cover 60, which is arranged in the valve cavity, and the connecting rod 10 is guided and matched with the valve cover 60. The arrangement of the valve cover 60 can guide the movement of the connecting rod 10, reduce the possibility of shaking during the movement of the connecting rod 10, improve the stability of the movement of the connecting rod 10, improve the stability of the movement of the valve core component 30 driven by the connecting rod component, and improve the stability when opening and closing the valve.

[0074] In this embodiment, the valve cover 60 is provided with a through hole 601, which is provided through the valve cover 60 along the axial direction of the valve cavity, and the connecting rod 10 is movably provided in the through hole 601, and the connecting rod 10 is guided and matched with the through hole 601. The provision of the through hole 601 has a simple structure and an excellent guiding effect.

[0075] In this embodiment, a first anti-rotation structure is provided on the side wall of the through hole 601, and a second anti-rotation structure is provided on the side wall of the connecting rod 10, and the first anti-rotation structure cooperates with the second anti-rotation structure to prevent rotation. The provision of the first anti-rotation structure and the second anti-rotation structure can ensure that the connecting rod component can only move along the axial direction of the valve cavity, avoiding the situation that the connecting rod component rotates during the movement process, and improving the stability of the connecting rod component during the movement process.

[0076] This solution does not limit the specific forms of the first anti-rotation structure and the second anti-rotation structure.

[0077] like Figure 1 , Figure 3 , Fig. 9 and Fig.10 As shown, in this embodiment, a first stop surface 6010 is provided on the side wall of the through hole 601, the first stop surface 6010 is a plane, and the extension direction of the first stop surface 6010 is the same as the extension direction of the through hole 601; a second stop surface 1001 is provided on the side wall of the connecting rod 11, and the extension direction of the second stop surface 1001 is the same as the extension direction of the connecting rod 10, and the first stop surface 6010 and the second stop surface 1001 are matched for rotation.

[0078] In this embodiment, the shape of the through hole 601 is adapted to the shape of the connecting rod 11. Specifically, the outer contour of the cross section of the connecting rod 11 is in the shape of a polygon, and the multiple outer side walls of the connecting rod 11 respectively form multiple first anti-rotation surfaces. Such a configuration is simple in structure, and it is easy to realize the guiding and anti-rotation of the connecting rod 11 by the through hole 601.

[0079] Furthermore, the valve body 01 includes a first sleeve 014 and a second sleeve 015, the opening ends of the first sleeve 014 and the second sleeve 015 are arranged opposite to each other, and a valve cavity is formed between the first sleeve 014 and the second sleeve 015. The valve cover 60 is an integral structure, and the valve cover 60 is located between the first sleeve 014 and the second sleeve 015, one end of the valve cover 60 is passed through the opening of the first sleeve 014 and connected to the first sleeve 014, and the other end of the valve cover 60 is passed through the opening of the second sleeve 015 and connected to the second sleeve 015. The valve cover 60 divides the valve cavity into a first chamber 0111 and a second chamber 0112 distributed along the axial direction.

[0080] In this embodiment, along the axial direction of the valve cover 60, the outer side wall of the valve cover 60 is provided with a first step structure and a second step structure which are spaced apart, the first step structure and the end surface of the opening end of the first sleeve 014 are limited in position, and the second step structure and the end surface of the opening end of the second sleeve 015 are limited in position. Such a configuration can improve the assembly accuracy between the first sleeve 014 and the valve cover 60, and improve the assembly accuracy between the second sleeve 015 and the valve cover 60.

[0081] Specifically, the rotor component 40 is located in the first chamber 0111, and the valve core component 30 is located in the second chamber 0112. In this embodiment, the rotor component 40 is located in the first sleeve 014, and the valve core component 30 is located in the second sleeve 015. Such a configuration has a simple structure, can reduce the number of parts of the electric valve as much as possible, and is more convenient to assemble.

[0082] Furthermore, a first balancing channel is formed between the connecting rod 10 and the through hole 601, and the two ends of the first balancing channel are respectively connected to the first chamber 0111 and the second chamber 0112. The provision of the first balancing channel can prevent the rotor component 40 from holding air in the first chamber 0111 and generating a pressure difference, thereby improving the flexibility of the rotor component 40 in rotation.

[0083] This solution does not limit the specific formation method of the first balancing channel.

[0084] like Figure 1 , Fig. 9 and Fig.10 As shown, in an embodiment of the present scheme, a groove structure 6013 is provided on the side wall of the through hole 601, and the groove structure 6013 is provided corresponding to the first rotation-stopping surface 6010. The extension direction of the groove structure 6013 is the same as the extension direction of the through hole 601. One end of the groove structure 6013 is connected to the first chamber 0111, and the other end is connected to the second chamber 0112. The groove structure 6013 forms a first balancing channel.

[0085] In other embodiments of the present scheme, a guide groove is provided on the side wall of the connecting rod 11, and the guide groove is provided corresponding to the second anti-rotation surface 1001. The extension direction of the guide groove is the same as the extension direction of the connecting rod 11. One end of the guide groove is connected to the first chamber 0111, and the other end is connected to the second chamber 0112. The guide groove forms a first balancing channel.

[0086] like Fig.11 and Fig.12As shown, in other embodiments of the present solution, a second balancing channel 602 is further provided on the valve cover 60. The second balancing channel 602 is eccentrically arranged with the through hole 601, and the two ends of the second balancing channel 602 are respectively connected with the first chamber 0111 and the second chamber 0112. The provision of the second balancing channel 602 can prevent the rotor component 40 from holding air in the first chamber 0111 and generating a pressure difference, thereby improving the flexibility of the rotor component 40 in rotation. In addition, the above-mentioned provision facilitates the processing and forming of the second balancing channel 602.

[0087] like Figure 1 and Figure 2 As shown, in this embodiment, the penetration hole 601 includes a guide hole 6011 and an avoidance hole 6012 which are sequentially connected along the direction from the connecting rod 10 to the connecting member 50. The aperture size of the guide hole 6011 is smaller than the aperture size of the avoidance hole 6012. The guide hole 6011 is guided and matched with the connecting rod 10. The end of the connecting member 50 away from the rotor component 40 is penetrated into the guide hole 6011 through the avoidance hole 6012 and is threadedly matched with the connecting rod 10.

[0088] Furthermore, the electric valve further includes a bearing 70, which is disposed in the avoidance hole 6012, and the connecting member 50 is rotatably disposed in the bearing 70, and the outer peripheral surface of the connecting member 50 is connected to the inner ring of the bearing 70. The provision of the bearing 70 can realize the connection of the connecting member 50, reduce the possibility of shaking of the connecting member 50, and improve the stability of the rotation process of the connecting member 50. In addition, the rotational friction of the connecting member 50 can be reduced, and the transmission efficiency can be improved.

[0089] Specifically, the valve cover 60 includes a first section and a second section connected to each other along the axial direction, the diameter of the first section is smaller than the diameter of the second section, the first section is inserted into the first sleeve 014, and the end of the first section away from the second section is inserted into the rotor component 40. The open end of the first sleeve 014 is sleeved on the end of the second section connected to the first section, and the open end of the second sleeve 015 is sleeved on the end of the second section away from the first section. Such an arrangement can further reduce the number of parts of the electric valve and improve the structural compactness of the electric valve.

[0090] like Figure 1 and Figure 2As shown, in this embodiment, a limiting portion 501 is provided on the connecting member 50, and the electric valve further includes an elastic component 80, which is provided on the connecting member 50, and the bearing 70 is located between the elastic component 80 and the limiting portion 501. The elastic component 80 and the limiting portion 501 are respectively in contact with the bearing 70, and the elastic component 80, the bearing 70 and the limiting portion 501 are sequentially distributed along the direction from the connecting member 50 to the connecting rod 10, and the elastic component 80 is used to apply elastic force to the connecting member 50 so that the limiting portion 501 on the connecting member 50 contacts the bearing 70. In this way, the elastic component 80 is used to apply a force to the bearing 70, so that the bearing 70 is always in contact with the limiting portion 501, eliminating the gap between the bearing 70 and the limiting portion 501, so that the connecting member 50 is constrained and limited in the axial direction, that is, the connecting member 50 only has the degree of freedom in the rotation direction, reducing or avoiding the possibility of the connecting member 50 moving in the axial direction.

[0091] Specifically, the elastic component 80 includes a spring and a retaining spring component that are connected to each other. The spring is sleeved on the connecting piece 50, and one end of the spring abuts against the end face of the bearing 70 away from the connecting rod 10. The retaining spring component is arranged at the end of the spring away from the bearing 70, the retaining spring component is clamped with the connecting piece 50, and the retaining spring component abuts against the end of the spring away from the bearing 70.

[0092] Furthermore, the first communication hole 012 and the second communication hole 013 are respectively connected to the side of the second chamber 0112, and the electric valve further includes a valve seat 90, which is arranged in the second chamber 0112, and the valve seat 90 is guided and matched with the valve core component 30. The arrangement of the valve seat 90 can guide the movement of the valve core component 30, and further improve the stability of the valve core component 30.

[0093] In this embodiment, the valve seat 90 is arranged in the second chamber 0112, and the valve seat 90 includes a first seat body and a second seat body. The first seat body and the second seat body are respectively arranged corresponding to the first connecting hole 012 and the second connecting hole 013. A first opening is arranged on the first seat body, and a second opening is arranged on the second seat body. The first opening and the second opening are respectively connected to the first connecting hole 012 and the second connecting hole 013.

[0094] Furthermore, the connecting rod component is limitedly matched with the valve cover 60 to limit the displacement stroke of the connecting rod component in the axial direction of the valve cavity.

[0095] like Figures 1 to 3 As shown, specifically, the step surface between the connecting rod 11 and the connecting block 12 forms a first limiting structure 103, and the first limiting structure 103 is used to abut and cooperate with the end surface of the valve cover 60 close to the valve core component 30 to limit the displacement stroke of the connecting rod component in the axial direction of the valve cavity. In this way, the structure is simple and no additional limiting structure is required.

[0096] Further, along the axial direction of the valve cavity, the end of the guide frame 20 away from the connecting rod 10 protrudes from the valve core component 30, and the end surface of the end of the guide frame 20 away from the connecting rod 10 forms a second limiting structure 203 and is used to limit the end of the valve cavity away from the rotor component 40. Such a configuration can avoid the situation where the end surface of the valve core component 30 contacts the end of the valve cavity away from the rotor component 40, and avoids the situation where the valve core component 30 is squeezed and deformed.

[0097] 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.

[0098] 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.

[0099] 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.

[0100] 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.

[0101] 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.

[0102] 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. An electric valve, characterized in that: include: A valve body (01) is provided with a valve cavity, 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; A valve core assembly, comprising a connecting rod component and a valve core component (30), wherein the connecting rod component is movably arranged in the valve cavity; the valve core component (30) is mounted on the connecting rod component, and the valve core component (30) moves with the connecting rod component in the valve cavity to connect or block the first connecting hole (012) and the second connecting hole (013); a rotor component (40) located at an end of the connecting rod component away from the valve core component (30), and the rotor component (40) is rotatably disposed in the valve cavity; A connecting member (50), one end of which is fixedly disposed on the rotor member (40), and the other end of which is threadedly engaged with the connecting rod member to drive the connecting rod member to move in the valve cavity along the axial direction of the valve cavity, and the connecting member (50) is limited relative to the valve body (01) in the axial direction of the valve cavity.

2. The electric valve according to claim 1, characterized in that: The connecting rod component comprises a connecting rod (10) and a guide frame (20) which are arranged in sequence along the direction from the rotor component (40) to the valve core component (30); the connecting rod (10) and the guide frame (20) are fixedly connected; the connecting rod (10) is threadedly matched with the connecting piece (50); and the valve core component (30) is mounted on the guide frame (20).

3. The electric valve according to claim 2, characterized in that: The electric valve further comprises: A valve cover (60) is arranged in the valve cavity, and the connecting rod (10) is guided and matched with the valve cover (60).

4. The electric valve according to claim 3, characterized in that: The valve cover (60) is provided with a through hole (601), and the through hole (601) is arranged to penetrate the valve cover (60) along the axial direction of the valve cavity. The connecting rod (10) is movably inserted into the through hole (601), and the connecting rod (10) is guided and matched with the through hole (601).

5. The electric valve according to claim 4, characterized in that: A first anti-rotation structure is provided on the side wall of the penetration hole (601), and a second anti-rotation structure is provided on the side wall of the connecting rod (10), and the first anti-rotation structure cooperates with the second anti-rotation structure to prevent rotation.

6. The electric valve according to claim 4, characterized in that: The valve cover (60) divides the valve cavity into a first chamber (0111) and a second chamber (0112) distributed along the axial direction; the rotor component (40) is located in the first chamber (0111) and the valve core component (30) is located in the second chamber (0112).

7. The electric valve according to claim 6, characterized in that: A first balancing channel is formed between the connecting rod (10) and the penetration hole (601), and two ends of the first balancing channel are respectively connected to the first chamber (0111) and the second chamber (0112).

8. The electric valve according to claim 6, characterized in that: The valve cover (60) is provided with a second balancing channel (602), the second balancing channel (602) is eccentrically arranged with respect to the through hole (601), and two ends of the second balancing channel (602) are respectively connected with the first chamber (0111) and the second chamber (0112).

9. The electric valve according to claim 4, characterized in that: The penetration hole (601) comprises a guide hole (6011) and an avoidance hole (6012) which are connected in sequence along the direction from the connecting rod (10) to the connecting member (50); the aperture size of the guide hole (6011) is smaller than the aperture size of the avoidance hole (6012); the guide hole (6011) is guided and matched with the connecting rod (10); an end of the connecting member (50) away from the rotor component (40) is penetrated into the guide hole (6011) through the avoidance hole (6012) and is threadedly matched with the connecting rod (10).

10. The electric valve according to claim 9, characterized in that: The electric valve further comprises: The bearing (70) is arranged in the avoidance hole (6012), the connecting member (50) is rotatably inserted into the bearing (70), and the outer peripheral surface of the connecting member (50) is connected to the inner ring of the bearing (70).

11. The electric valve according to claim 10, characterized in that: The connecting member (50) is provided with a limiting portion (501), and the electric valve further comprises: An elastic component (80) is arranged on the connecting member (50), the bearing (70) is located between the elastic component (80) and the limiting portion (501), the elastic component (80) and the limiting portion (501) are respectively in contact with the bearing (70), and the elastic component (80) is used to apply elastic force to the connecting member (50) so that the limiting portion (501) on the connecting member (50) contacts the bearing (70).

12. The electric valve according to claim 1, characterized in that: The electric valve further comprises: A valve seat (90) is arranged in the valve cavity, and the valve seat (90) is guided and matched with the valve core component (30).

13. The electric valve according to claim 2, characterized in that: The guide frame (20) is provided with a mounting port (201), and the valve core component (30) includes a first valve core (31) and a second valve core (32) which are independent of each other. The first valve core (31) and the second valve core (32) are respectively installed in the mounting port (201), the first valve core (31) and the second valve core (32) are abutted against each other, the first valve core (31) is arranged corresponding to the first connecting hole (012), and the second valve core (32) is arranged corresponding to the second connecting hole (013).

14. The electric valve according to claim 3, characterized in that: The connecting rod component and the valve cover (60) are limitedly matched to limit the displacement stroke of the connecting rod component in the axial direction of the valve cavity.

15. The electric valve according to claim 14, characterized in that: A stepped surface is provided on the side wall of the connecting rod component, and the stepped surface is used for limiting cooperation with the valve cover (60).

16. The electric valve according to claim 2, characterized in that: The first connecting hole (012) and the second The connecting holes (013) are respectively connected to the side of the valve cavity. Along the axial direction of the valve cavity, one end of the guide frame (20) away from the connecting rod (10) protrudes from the valve core component (30), and the end of the guide frame (20) away from the connecting rod (10) is used to limit and cooperate with one end of the valve cavity away from the rotor component (40).

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