Cap structure and stop valve

Abstract

The utility model provides a cap structure and a stop valve, and relates to the technical field of stop valves. The cap structure comprises a cap body and an operation part; the cover body is provided with a first mounting groove which is recessed in the axial direction of the cover body. The groove wall of the first mounting groove is used for being connected with a port of the valve body. The operation part is connected to the side, away from the first mounting groove, of the cover body in the axial direction of the cap structure. The periphery of the operation part is provided with two first matching surfaces which are oppositely arranged in the first direction and two second matching surfaces which are oppositely arranged in the second direction, and the two first matching surfaces and the two second matching surfaces are alternately arranged and connected in the circumferential direction of the operation part; and the area size of the first matching surface is different from that of the second matching surface. The first matching face and the second matching face are different in size and can be matched with different operation tools respectively, and the selectivity of the tools is improved. When the valve cover is matched with different valve body ports, only the size of the cover body needs to be changed, the size of the operation part does not need to be changed, operation tools do not need to be frequently replaced, and operability is higher.

Description

Technical Field

[0001] The present application relates to the technical field of stop valves, and in particular to a cap structure and a stop valve. Background Art

[0002] The stop valve can control the flow of fluid, and the cap structure can block the port of the stop valve to prevent impurities from entering. In the related art, the cap structure needs to be screwed to achieve installation and removal. There is a problem of large torque during the screwing process, which affects the structural strength of the stop valve port. During assembly, the size of the cap structure corresponds to the size of the stop valve port. The screwing structure of the existing cap is set on the periphery of the cap, so that cap structures of different sizes require operating tools of different sizes, which has poor matching and inconvenient operation. Utility Model Content

[0003] Based on this, it is necessary to provide a cap structure and a stop valve, which can reduce the installation torque and make the operating tools corresponding to the cap structure more diversified.

[0004] A cap structure, comprising a cover body and an operating part; the cover body is provided with a first mounting groove recessed along its own axial direction, and the groove wall of the first mounting groove is used to connect with the port of a valve body; the operating part is connected to the side of the cover body away from the first mounting groove along the axial direction of the cap structure; the outer periphery of the operating part has two first mating surfaces arranged opposite to each other along a first direction and two second mating surfaces arranged opposite to each other along a second direction, and the two first mating surfaces and the two second mating surfaces are alternately arranged and connected along the circumference of the operating part; the area size of the first mating surface is different from the area size of the second mating surface; wherein the first direction, the second direction and the axial direction of the cap structure are arranged at an angle in pairs.

[0005] It is understandable that the groove wall of the first mounting groove can be connected to the valve body of the stop valve to achieve the sealing of the valve body. The operating part can cooperate with the operating tool, and the operating tool applies force to the operating part so that the cap structure can be connected to the valve body. Among them, after the operating part is subjected to force, the force will not be directly transmitted to the valve body of the stop valve, thereby reducing the torque to slow down the force deformation of the valve body. At the same time, by setting the first mating surface and the second mating surface, due to the different sizes of the two, they can be respectively matched with different operating tools, thereby increasing the selectivity of the tool to meet the needs of different customers. In addition, when matching with different valve body ports, it is only necessary to change the size of the cover body without changing the size of the operating part, and there is no need to replace different operating tools due to different sizes of different valve body ports, which makes the operability stronger.

[0006] In one embodiment, the two first mating surfaces are arranged parallel to each other; and the two second mating surfaces are arranged parallel to each other.

[0007] It can be understood that in this way, the two first mating surfaces or the two second mating surfaces are subjected to force more evenly, which facilitates operation.

[0008] In one embodiment, the first mating surface and the second mating surface are arranged perpendicular to each other.

[0009] It can be understood that such an arrangement is easier to process, and the first mating surface and the second mating surface may not interfere with each other.

[0010] In one embodiment, a dimension of the first mating surface along the second direction is L1, a dimension of the second mating surface along the first direction is L2, and L1 = (0.5-0.8) L2.

[0011] It can be understood that such a configuration ensures that the size of the first mating surface is significantly smaller than the size of the second mating surface, and ensures that the first mating surface has a sufficient area to facilitate contact and force application by the operating tool.

[0012] In one embodiment, the first mating surface and / or the second mating surface is plated with a wear-resistant coating.

[0013] It can be understood that such a configuration enables the operating portion to have better wear resistance and improves the tightness of the fit between the operating portion and the operating tool.

[0014] In one embodiment, the operating portion is provided with a second mounting groove, and along the axial direction of the cap structure, the second mounting groove is recessed inward from the bottom of the first mounting groove, and the second mounting groove is communicated with the first mounting groove.

[0015] It can be understood that the second mounting groove is provided to make the cap structure as a whole lighter and reduce consumables.

[0016] In one of the embodiments, a reinforcing rib is provided in the second installation groove; two ends of the reinforcing rib along its own axial direction are respectively connected to the groove wall of the second installation groove.

[0017] It can be understood that the strength of the cap structure is enhanced by providing reinforcing ribs.

[0018] In one embodiment, along the axial direction of the cap structure, the wall thickness of the operating part at one end away from the notch of the first mounting groove is D1, the wall thickness of the operating part along the first direction at the wall of the second mounting groove is D2, and the wall thickness of the operating part along the second direction at the wall of the second mounting groove is D3, and the sizes of D1, D2, and D3 are not less than 1 mm respectively.

[0019] It can be understood that by limiting the wall thickness of the operating portion, the structural strength of the operating portion is ensured so that the operating portion is not easily deformed.

[0020] In one embodiment, a side groove wall of the first mounting groove is provided with a limiting portion protruding radially inwardly along the cover body, the limiting portion is arranged along the circumference of the first mounting groove, and the limiting portion is connected to the bottom wall of the first mounting groove.

[0021] It can be understood that by providing the limiting portion, the matching size of the first installation groove and the valve body can be directly limited, which makes assembly easier.

[0022] A stop valve comprises the above-mentioned cap structure and a valve body; the valve body is provided with a connecting end, the connecting end is inserted into the first mounting groove and connected to the cap structure.

[0023] It can be understood that, by adopting the above-mentioned cap structure, more operating tools can be selected when assembling the stop valve, and the operation is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the conventional technology, the drawings required for use in the embodiments or the conventional technology descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0025] Figure 1 A front view of the cap structure provided for this application;

[0026] Figure 2 A side view of the cap structure provided for this application;

[0027] Figure 3 A three-dimensional diagram of the cap structure provided for this application;

[0028] Figure 4 A cross-sectional view of the stop valve provided for this application.

[0029] Figure numerals: 1000, stop valve; 100, cap structure; 200, valve body; 2001, first fluid channel; 2002, second fluid channel; 2003, connecting end; 300, valve core; 10, cover body; 101, first mounting groove; 11, limiting portion; 20, operating portion; 201, second mounting groove; 21, first mating surface; 22, second mating surface. DETAILED DESCRIPTION

[0030] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.

[0031] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of this application are for illustrative purposes only and do not represent the only implementation method.

[0032] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0033] In the present application, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0034] Unless otherwise defined, all technical and scientific terms used in the specification of this application have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application. The term "and / or" used in the specification of this application includes any and all combinations of one or more related listed items.

[0035] See also Figures 1 to 3The present application provides a cap structure 100, which includes a cover body 10 and an operating part 20; the cover body 10 is provided with a first mounting groove 101 which is recessed along its own axial direction, and the groove wall of the first mounting groove 101 is used to connect with the port of the valve body 200; the operating part 20 is connected to the side of the cover body 10 away from the first mounting groove 101 along the axial direction of the cap structure 100; the outer periphery of the operating part 20 has two first mating surfaces 21 arranged opposite to each other along a first direction and two second mating surfaces 22 arranged opposite to each other along a second direction, and the two first mating surfaces 21 and the two second mating surfaces 22 are alternately arranged and connected along the circumference of the operating part 20; the area size of the first mating surface 21 is different from the area size of the second mating surface 22; wherein, the first direction, the second direction and the axial direction of the cap structure 100 are arranged at an angle in pairs.

[0036] For the convenience of explanation, in the drawings, the first direction is taken as the x-axis, the second direction is taken as the y-axis, and the axial direction of the cap structure 100 is taken as the z-axis.

[0037] In this way, the cap structure 100 can be sleeved on the connection end 2003 of the valve body 200 through the first installation groove 101 and connected to the valve body 200. During the installation process, the operating part 20 is subjected to the external force of the operating tool. Since the operating part 20 is not connected to the valve body 200, the force will not be directly transmitted from the operating part 20 to the valve body 200, which is beneficial to protect the structure of the valve body 200 and reduce the force deformation of the connection end 2003 of the valve body 200. Among them, the operating part 20 can correspond to different operating tools by setting the first mating surface 21 and the second mating surface 22 of different sizes. For example, if the area size of the first mating surface 21 is smaller than the area size of the second mating surface 22, the first mating surface 21 corresponds to the use of a small-sized operating tool, and the second mating surface 22 corresponds to the use of a large-sized operating tool, so that the selection of the operating tool is more flexible to meet the needs of different customers. In other embodiments, the area size of the first mating surface 21 can also be larger than the area size of the second mating surface 22.

[0038] Furthermore, when the cap structure 100 cooperates with the connecting end 2003 of the valve body 200 of different sizes, it is only necessary to change the size of the cover body 10 for processing without changing the size of the operating part 20, that is, the operating part 20 can be set to a standard size, and there is no need to replace different models of operating tools accordingly, so that the operating tools are more compatible and easier to operate, which is conducive to improving production efficiency.

[0039] In a specific embodiment, the groove wall of the first installation groove 101 is provided with threads to facilitate threaded connection with the valve body 200. The corresponding operating tool can be a wrench, etc., which clamps the two first mating surfaces 21 or the second mating surfaces 22 to facilitate screwing the operating part 20.

[0040] like Figures 1 to 3In one embodiment, the two first mating surfaces 21 are arranged parallel to each other. In this way, the contact area between the two first mating surfaces 21 and the operating tool and the forces received are consistent, which saves more effort during operation and is not easy to damage the structure of the operating part 20. In other embodiments, the two second mating surfaces 22 are arranged parallel to each other, and the contact area between the two second mating surfaces 22 and the operating tool and the forces received are consistent, which saves more effort during operation and is not easy to damage the structure of the operating part 20.

[0041] like Figures 1 to 3 In a further embodiment, the first mating surface 21 and the second mating surface 22 are arranged perpendicular to each other. In this way, when the two first mating surfaces 21 are subjected to force, the force is relatively transmitted along the first direction without affecting the second mating surfaces 22. When the two second mating surfaces 22 are subjected to force, the force is relatively transmitted along the second direction without affecting the first mating surfaces 21. At the same time, it is also convenient for direct processing and forming.

[0042] like Figure 1 and Figure 2 In a further embodiment, the dimension of the first mating surface 21 along the second direction is L1, and the dimension of the second mating surface 22 along the first direction is L2, and L1 = (0.5-0.8) L2. In this way, there is a significant difference between the dimensions of the first mating surface 21 and the dimensions of the second mating surface 22 to accommodate different operating tools. At the same time, the first mating surface 21 can also ensure that it has a sufficient size for contact with the operating tool to avoid deformation of the entire operating portion 20 due to the small size of the first mating surface 21. Exemplarily, L1 = 0.5L2, 0.6L2 or 0.8L2.

[0043] In a specific embodiment, the first mating surface 21 and / or the second mating surface 22 are plated with a wear-resistant coating. In this way, since the operating tool will exert force on the first mating surface 21 or the second mating surface 22 and generate friction, the wear resistance of the cap structure 100 can be enhanced by providing the wear-resistant coating, thereby extending the service life.

[0044] like Figure 1 and Figure 2 In a further embodiment, the operating portion 20 is provided with a second mounting groove 201. Along the axial direction of the cap structure 100, the second mounting groove 201 is recessed inward from the bottom of the first mounting groove 101, and the second mounting groove 201 is connected to the first mounting groove 101. This arrangement is convenient for reducing consumables of the cap structure 100 and reducing costs, and also makes the cap structure 100 as a whole lighter and easier to operate.

[0045] In a specific embodiment, a reinforcing rib is provided in the second installation groove 201; the two ends of the reinforcing rib along its own axis are respectively connected to the groove wall of the second installation groove 201 to improve the structural strength of the operating part 20, and when the operating part 20 is subjected to external force, the deformation of the operating part 20 can be reduced.

[0046] like Figure 1 and Figure 2 In a specific embodiment, along the axial direction of the cap structure 100, the wall thickness of the operating part 20 at one end away from the notch of the first installation groove 101 is D1, the wall thickness of the operating part 20 at the second installation groove 201 along the first direction is D2, and the wall thickness of the operating part 20 at the second installation groove 201 along the second direction is D3. The dimensions of D1, D2, and D3 are not less than 1mm, respectively, so that the wall thickness of each part of the operating part 20 can meet the strength requirements, so as to improve the fluid resistance and pressure bearing strength, so that the operating part 20 is not easily damaged. Exemplarily, D1 = 1mm, 2mm or 3mm; D2 = 1mm, 2mm or 3mm; D3 = 1mm, 2mm or 3mm.

[0047] like Figure 1 and Figure 2 In a specific embodiment, a limiting portion 11 is protruded radially inwardly of the side groove wall of the first mounting groove 101 along the cover body 10, and the limiting portion 11 is arranged along the circumference of the first mounting groove 101, and the limiting portion 11 is connected to the bottom wall of the first mounting groove 101, so as to limit the size of the matching connection between the cover body 10 and the valve body 200, which has a good installation and positioning effect and is easy to operate.

[0048] like Figure 4 As shown, the present application also provides a stop valve 1000, including the above-mentioned cap structure 100 and a valve body 200, the valve body 200 is provided with a connecting end 2003, the connecting end 2003 is inserted into the first installation groove 101 and connected to the cap structure 100, so as to block the valve body 200 and prevent leakage. During installation, the operating part 20 is only matched with the operating tool, so the force of the operating part 20 will not be directly transmitted to the connecting end 2003 of the valve body 200, which is conducive to protecting the valve body 200 from deformation. At the same time, the operating part 20 has a first mating surface 21 and a second mating surface 22 of different sizes, so as to facilitate the selection of different operating tools and make the operation more flexible.

[0049] In a specific embodiment, the valve body 200 is constructed with a first fluid channel 2001 and a second fluid channel 2002, the axis of the first fluid channel 2001 is cross-arranged with the axis of the second fluid channel 2002, a valve core 300 is installed in the first fluid channel 2001, and the opening and closing of the first fluid channel 2001 and the second fluid channel 2002 are controlled by the movement of the valve core 300 along the axis of the first fluid channel 2001. Along the axis of the first fluid channel 2001, the end of the valve core 300 away from the second fluid channel 2002 is provided with a connecting end 2003 connected to the cap structure 100.

[0050] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0051] The above-described embodiments only express several implementation methods of the present application, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that, for a person of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present application, and these all belong to the protection scope of the present application. Therefore, the scope of patent protection of the present application shall be subject to the attached claims.

Claims

1. A cap structure, characterized in that: The cap structure comprises: The cover body (10) is provided with a first installation groove (101) recessed along its own axial direction, and the groove wall of the first installation groove (101) is used to connect with the port of the valve body (200); An operating portion (20), the operating portion (20) being connected to a side of the cover body (10) facing away from the first mounting groove (101) along the axial direction of the cap structure; the outer periphery of the operating portion (20) having two first mating surfaces (21) arranged opposite to each other along a first direction and two second mating surfaces (22) arranged opposite to each other along a second direction, the two first mating surfaces (21) and the two second mating surfaces (22) being alternately arranged and connected along the circumference of the operating portion (20); the area size of the first mating surface (21) is different from the area size of the second mating surface (22); The first direction, the second direction and the axial direction of the cap structure are arranged at an angle in pairs.

2. The cap structure according to claim 1, characterized in that: The two first matching surfaces (21) are arranged parallel to each other; and the two second matching surfaces (22) are arranged parallel to each other.

3. The cap structure according to claim 2, characterized in that: The first mating surface (21) and the second mating surface (22) are arranged perpendicular to each other.

4. The cap structure according to claim 2, characterized in that: The dimension of the first mating surface (21) along the second direction is L1, and the dimension of the second mating surface (22) along the first direction is L2, where L1=(0.5-0.8)L2.

5. The cap structure according to claim 1, characterized in that: The first mating surface (21) and / or the second mating surface (22) are plated with a wear-resistant coating.

6. The cap structure according to any one of claims 1 to 5, characterized in that: The operating portion (20) is provided with a second mounting groove (201), and along the axial direction of the cap structure, the second mounting groove (201) is recessed inward from the bottom of the first mounting groove (101), and the second mounting groove (201) is communicated with the first mounting groove (101).

7. The cap structure according to claim 6, characterized in that: A reinforcing rib is provided in the second installation groove (201); two ends of the reinforcing rib along its own axial direction are respectively connected to the groove wall of the second installation groove (201).

8. The cap structure according to claim 6, characterized in that: Along the axial direction of the cap structure, the wall thickness of the operating portion (20) at one end away from the slot opening of the first mounting slot (101) is D1, the wall thickness of the operating portion (20) at the slot wall of the second mounting slot (201) along the first direction is D2, and the wall thickness of the operating portion (20) at the slot wall of the second mounting slot (201) along the second direction is D3, and the sizes of D1, D2, and D3 are not less than 1 mm respectively.

9. The cap structure according to claim 1, characterized in that: A limiting portion (11) is provided on the side groove wall of the first mounting groove (101) protruding radially inwardly along the cover body (10), the limiting portion (11) is arranged along the circumference of the first mounting groove (101), and the limiting portion (11) is connected to the bottom of the first mounting groove (101).

10. A stop valve, characterized in that: include: The cap structure according to any one of claims 1 to 9; A valve body (200), wherein the valve body (200) is provided with a connecting end (2003), wherein the connecting end (2003) is inserted into the first installation groove (101) and connected to the cap structure.

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