Quick release type valve rod connecting structure and flange type ball valve thereof

Abstract

The utility model relates to the technical field of valves, and discloses a quick release type valve rod connecting structure and a flange type ball valve comprising the quick release type valve rod connecting structure. The clamping assembly comprises an inserting part, deformation rods and an extruding and pushing block, the inserting part is fixedly connected with the valve rod body, the inserting part is connected with the connecting column in an inserting mode, the two deformable deformation rods are symmetrically arranged on the inserting part, the deformation rods are fixedly connected with the inserting part, and the extruding and pushing block is elastically connected with the inserting part. The inserting part is inserted into the inserting hole, the extruding and pushing block moves upwards due to the counter-acting force of the connecting column to the extruding and pushing block, the waist portions of the two sides of the extruding and pushing block extrude and push the inclined face of the side wall of the deformation rod, the upper end of the extruding and pushing block deforms to abut against the inner wall of the connecting column, the horizontal part of the deformation rod is clamped into the notch to limit falling of the connecting column, and clamping connection of the valve rod body and the connecting column is achieved. The valve rod and the valve element are firmly connected and are not prone to radial slippage, and the valve element is controlled more stably.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, and in particular to a quick-release valve stem connection structure and its flanged ball valve. Background Technology

[0002] The valve body is a commonly used control element in media transmission, used to control the flow and cut off of media.

[0003] According to the prior art, a valve stem and ball valve (publication number: CN111895123A) are disclosed, which include a stem body, an operating part and a mating part are provided on the stem body, and the cross-sectional shape of the mating part is a polygon formed by at least three closed sides.

[0004] In the existing technology, the valve stem is installed by inserting a polygonal rod into the valve core. However, the lack of limiting and fixing between the valve stem and the valve core makes the connection between the valve stem and the valve core unstable and not firm. This can easily cause radial slippage of the valve stem, affecting the control of the valve core, and there is room for optimization.

[0005] To address this, we propose a quick-release valve stem connection structure and its flanged ball valve. Utility Model Content

[0006] The present invention mainly solves the technical problem of the above-mentioned loose connection between valve stem and valve core, and provides a quick-release valve stem connection structure and its flange ball valve.

[0007] To achieve the above objectives, this utility model adopts the following technical solution: a quick-release valve stem connection structure, comprising:

[0008] A connecting column and a valve stem body, wherein the valve stem body is detachably connected to the connecting column;

[0009] A locking assembly is disposed between the connecting post and the valve stem body to lock the valve stem body. The locking assembly includes a plug-in part, a deformation rod, and a push block. The plug-in part is fixedly connected to the valve stem body and plugged into the connecting post. Two deformable deformation rods are symmetrically arranged on the plug-in part and fixedly connected to the plug-in part. The push block is elastically connected to the plug-in part. The connecting post can push the push block upward to deform the two deformation rods and lock them into the connecting post.

[0010] In a preferred embodiment of this utility model, the top of the connecting column is provided with a socket for a fitting insertion part, the insertion part is inserted into the socket, and the inner wall of the connecting column is provided with a groove for a fitting deformation rod, the deformation rod being inserted into the groove.

[0011] In a preferred embodiment of this utility model, the deformation rod is formed into a plate with an L-shaped cross-section, and the horizontal portion of the deformation rod extends to one side of the insertion part, and the horizontal portion of the deformation rod is inserted into the slot.

[0012] In a preferred embodiment of the present invention, the bottom of the plug-in portion is provided with a notch, and the deformation rod and the push block are both located in the notch. The push block protrudes from the bottom of the plug-in portion and extends to the lower part of the plug-in portion, and the two deformation rods are arranged on opposite sides of the plug-in portion.

[0013] In a preferred embodiment of the present invention, the snap-fit ​​assembly further includes a slider and a spring plate, both of which are fixedly connected to the push block. The spring plate can push the push block downward so that the push block separates from the deformation rod.

[0014] In a preferred embodiment of this utility model, the spring plate and the extrusion block are integrally formed, the spring plate is located on the top of the extrusion block and extends inclined to one side, the slider is fixedly connected to the side wall of the extrusion block, the slider is slidably connected to the insertion part, the two sides of the extrusion block form inclined surfaces, and the inclined surfaces of the extrusion block abut against the side wall of the deformation rod.

[0015] A flanged ball valve includes a valve body, a valve core rotatably connected inside the valve body, and all the above-mentioned quick-release valve stem connection structures provided on the valve body. The connecting column is fixedly connected to the valve core, and the valve stem body extends to the top of the valve body, with a handle connected to the valve stem body.

[0016] Beneficial effects

[0017] This utility model provides a quick-release valve stem connection structure and its flanged ball valve. It features the following:

[0018] Beneficial effects:

[0019] 1. This quick-release valve stem connection structure and its flanged ball valve, by pressing the flange of the valve stem body against the top of the valve body through a gland to limit the valve stem body, and by applying downward pressure to the valve stem body through the gland to insert the plug into the socket, the reaction force of the connecting column to the push block causes the push block to move upward, and the side walls of the push block push the inclined surfaces of the deformation rods on both sides of the push block, and by deforming the upper end of the push block to abut against the inner wall of the connecting column, the horizontal part of the deformation rod is locked into the slot to prevent the connecting column from falling off, thus realizing the locking of the valve stem body and the connecting column, which has the function of quick release, facilitates inspection and maintenance, and the valve stem and valve core are firmly connected and not prone to radial slippage, making the valve core control more stable.

[0020] 2. This quick-release valve stem connection structure and its flanged ball valve, by setting a spring plate, when the push block moves upward, the slider slides on the inner wall of the insertion part and moves upward. The push block approaches the inner top surface of the insertion part, and the spring plate is deformed by the compression of the inner top surface of the insertion part. When the pressure on the valve stem body is released, the push block can be reset so that the waist of the push block separates from the deformation rod. The lower end of the deformation rod is fixedly connected to the insertion part, and the upper end of the deformation rod is a free end, which facilitates the deformation rod to reset and detach from the slot. The valve stem body can be locked and removed during the disassembly and assembly of the gland, which is simple and efficient. Attached Figure Description

[0021] Figure 1 This is a perspective view of the entire utility model;

[0022] Figure 2 This is a partial sectional view of the valve body of this utility model;

[0023] Figure 3 This is a schematic diagram of the valve stem and valve core installation of this utility model;

[0024] Figure 4 This is a partial sectional view of the connecting column of this utility model;

[0025] Figure 5 This is a perspective view of the connecting rod of this utility model;

[0026] Figure 6 This is a three-dimensional view of the extrusion block and the deformation rod.

[0027] Legend: 10. Valve body; 11. Valve core; 12. Connecting column; 13. Valve stem body; 14. Insertion part; 20. Deformation rod; 21. Push block; 22. Slider; 23. Spring plate. Detailed Implementation

[0028] A quick-release valve stem connection structure and its flanged ball valve, such as Figure 3 and Figure 5 As shown, it includes:

[0029] The valve stem body 13 is detachably connected to the connecting column 12.

[0030] like Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, a snap-fit ​​assembly is disposed between the connecting post 12 and the valve stem body 13 to lock the valve stem body 13. The snap-fit ​​assembly includes an insertion part 14, deformable rods 20, and a push block 21. The insertion part 14 is fixedly connected to the valve stem body 13 and is inserted into the connecting post 12. Two deformable rods 20 are symmetrically arranged on the insertion part 14 and are fixedly connected to the insertion part 14. The push block 21 is elastically connected to the insertion part 14. The connecting post 12 can push the push block 21 upward to push the two deformable rods 20 to deform and snap into the connecting post 12. The top of the connecting post 12 is open. The connector 14 is provided with a socket for the plug-in part 14. The plug-in part 14 is plugged into the socket. The inner wall of the connecting post 12 is provided with a slot for the deformation rod 20. The deformation rod 20 is inserted into the slot. The deformation rod 20 forms a plate with an L-shaped cross section. The horizontal part of the deformation rod 20 extends to one side of the plug-in part 14. The horizontal part of the deformation rod 20 is plugged into the slot. The bottom of the plug-in part 14 is provided with a notch. The deformation rod 20 and the extrusion block 21 are both located in the notch. The extrusion block 21 protrudes from the bottom of the plug-in part 14 and extends to the bottom of the plug-in part 14. The two deformation rods 20 are arranged on opposite sides of the plug-in part 14.

[0031] In this design, the valve stem body 13 has a flange on its side wall, and a pressure cap is provided on the top of the valve body 10. The pressure cap is locked to the valve body 10 with screws. The valve stem body 13 passes through the pressure cap. The pressure cap presses the flange of the valve stem body 13 against the top of the valve body 10 to limit the valve stem body 13. The pressure cap applies downward pressure to the valve stem body 13, inserting the plug part 14 into the plug hole. The reaction force of the connecting post 12 on the push block 21 causes the push block 21 to move upward. The waist sides of the push block 21 push the inclined side wall of the deformation rod 20. The upper end of the push block 21 deforms and abuts against the inner wall of the connecting post 12. The horizontal part of the deformation rod 20 is inserted into the slot to prevent the connecting post 12 from falling off, thus realizing the snap-fit ​​between the valve stem body 13 and the connecting post 12. It has a quick-release function and is convenient for inspection and maintenance.

[0032] like Figure 6 As shown, the snap-fit ​​assembly also includes a slider 22 and a spring plate 23. Both the slider 22 and the spring plate 23 are fixedly connected to the push block 21. The spring plate 23 can push the push block 21 down so that the push block 21 separates from the deformation rod 20. The spring plate 23 is integrally formed with the push block 21. The spring plate 23 is located on the top of the push block 21 and extends inclined to one side. The slider 22 is fixedly connected to the side wall of the push block 21. The slider 22 is slidably connected to the insertion part 14. The two sides of the push block 21 form inclined surfaces. The inclined surfaces of the push block 21 abut against the side wall of the deformation rod 20.

[0033] As a supplement to the above solution, by setting a spring plate 23, when the push block 21 moves upward, the slider 22 slides on the inner wall of the insertion part 14 and moves upward. The push block 21 approaches the inner top surface of the insertion part 14, and the spring plate 23 is deformed by the compression of the inner top surface of the insertion part 14. When the pressure on the valve stem body 13 is released, the push block 21 can be reset so that the waist of the push block 21 separates from the deformation rod 20. The lower end of the deformation rod 20 is fixedly connected to the insertion part 14, and the upper end of the deformation rod 20 is a free end, which facilitates the deformation rod 20 to be reset and detached from the slot. During the process of disassembling and assembling the pressure cap, the valve stem body 13 can be locked and removed. The disassembly and assembly are simple and efficient.

[0034] like Figure 1 and Figure 2 As shown, a flanged ball valve includes a valve body 10, a valve core 11 rotatably connected inside the valve body 10, and all the above-mentioned quick-release valve stem connection structures are provided on the valve body 10. A connecting column 12 is fixedly connected to the valve core 11, and a valve stem body 13 extends to the top of the valve body 10. A handle is connected to the valve stem body 13, and flanges for connection are fixed at both ends of the valve body 10. Specifically, the handle is locked and fixed to the valve stem body 13 by a nut. The quick-release valve stem body 13 facilitates maintenance and assembly during the production process.

[0035] The working principle of this utility model is as follows: The valve stem body 13 is pressed against the top of the valve body 10 by the pressure cap to limit the valve stem body 13. The pressure cap applies downward pressure to the valve stem body 13, inserting the plug part 14 into the plug hole. The reaction force of the connecting post 12 on the extrusion block 21 causes the extrusion block 21 to move upward. The two sides of the waist of the extrusion block 21 extrude the inclined side wall of the deformation rod 20. The upper end of the extrusion block 21 deforms and abuts against the inner wall of the connecting post 12. The horizontal part of the deformation rod 20 is locked into the slot to prevent the connecting post 12 from falling off, thus realizing the locking of the valve stem body 13 and the connecting post 12. Next, when the push block 21 moves upward, the slider 22 slides on the inner wall of the insertion part 14 and moves upward. The push block 21 approaches the inner top surface of the insertion part 14, and the spring plate 23 is deformed by the compression of the inner top surface of the insertion part 14. When the pressure on the valve stem body 13 is released, the push block 21 can be reset so that the waist of the push block 21 separates from the deformation rod 20. The lower end of the deformation rod 20 is fixedly connected to the insertion part 14, and the upper end of the deformation rod 20 is a free end, which facilitates the deformation rod 20 to be reset and detached from the slot. During the process of disassembling and assembling the pressure cap, the valve stem body 13 can be locked and removed.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A quick-release valve stem connection structure, characterized in that, include: A connecting column (12) and a valve stem body (13), wherein the valve stem body (13) is detachably connected to the connecting column (12); A snap-fit ​​assembly is disposed between the connecting post (12) and the valve stem body (13) to lock the valve stem body (13). The snap-fit ​​assembly includes a plug-in part (14), a deformation rod (20), and a push block (21). The plug-in part (14) is fixedly connected to the valve stem body (13) and plugged into the connecting post (12). The plug-in part (14) has two deformable deformation rods (20) symmetrically arranged. The deformation rods (20) are fixedly connected to the plug-in part (14). The push block (21) is elastically connected to the plug-in part (14). The connecting post (12) can push the push block (21) to move upward and push the two deformation rods (20) to deform and snap into the connecting post (12).

2. The quick-release valve stem connection structure according to claim 1, characterized in that: The top of the connecting post (12) is provided with a socket for the fitting plug part (14), the fitting part (14) is inserted into the socket, and the inner wall of the connecting post (12) is provided with a slot for the fitting deformation rod (20), the deformation rod (20) is inserted into the slot.

3. The quick-release valve stem connection structure according to claim 1, characterized in that: The deformation rod (20) forms an L-shaped plate, and the horizontal part of the deformation rod (20) extends to one side of the insertion part (14), and the horizontal part of the deformation rod (20) is inserted into the slot.

4. The quick-release valve stem connection structure according to claim 1, characterized in that: The bottom of the plug-in part (14) is provided with a notch, and the deformation rod (20) and the push block (21) are both located in the notch. The push block (21) protrudes from the bottom of the plug-in part (14) and extends to the bottom of the plug-in part (14). The two deformation rods (20) are arranged on opposite sides of the plug-in part (14).

5. The quick-release valve stem connection structure according to claim 1, characterized in that: The snap-fit ​​assembly also includes a slider (22) and a spring plate (23), both of which are fixedly connected to the push block (21). The spring plate (23) can push the push block (21) down so that the push block (21) separates from the deformation rod (20).

6. The quick-release valve stem connection structure according to claim 5, characterized in that: The spring plate (23) and the extrusion block (21) are integrally formed. The spring plate (23) is located on the top of the extrusion block (21) and extends inclined to one side. The slider (22) is fixedly connected to the side wall of the extrusion block (21). The slider (22) is slidably connected to the insertion part (14). The two sides of the extrusion block (21) form inclined surfaces. The inclined surfaces of the extrusion block (21) abut against the side wall of the deformation rod (20).

7. A flanged ball valve, comprising a valve body (10), wherein a valve core (11) is rotatably connected inside the valve body (10), characterized in that: The valve body (10) is provided with a quick-release valve stem connection structure as described in any one of claims 1-6, the connecting column (12) is fixedly connected to the valve core (11), the valve stem body (13) extends to the top of the valve body (10), and the valve stem body (13) is connected to a handle.

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