Valve casting

Abstract

The utility model relates to the field of valves, in particular to a valve casting which is characterized in that two positioning frames are symmetrically arranged at the upper end of a valve, a moving block is arranged between the two positioning frames in a sliding mode, a limiting rod penetrating through a through hole is arranged at the upper end of the moving block, a driving shaft is rotationally arranged between the two positioning frames, the driving shaft is meshed with the moving block, and the driving shaft is connected with the moving block. After the position of the hand wheel is adjusted, the driving wheel is rotated, the driving shaft can rotate at the moment, the movable block can ascend and descend between the two positioning frames through the meshing effect, the limiting rod can penetrate through the through holes, the number of the through holes is not forcibly regulated, and after the limiting rod penetrates through the through holes, the state of the spring is a normal state. And the position of the moving block can be more stable between the two positioning frames, so that the stability of the valve during use can be improved.

Description

Technical Field

[0001] The utility model relates to the field of valves, in particular to a valve casting. Background Art

[0002] Valve castings generally refer to casting parts used to manufacture valves, such as valve bodies, valve covers, valve cores, etc. These parts are usually made of cast iron, cast steel, stainless steel and other materials, and are used to control the flow of fluids in pipeline systems.

[0003] The patent with publication number CN219639503U proposes a valve casting, including a control component, a left filter component and a right filter component, the left filter component is fixedly connected to the left end of the control component, the right filter component is fixedly connected to the right end of the control component, and two first rubber rings are set to be fixedly connected to the two sides of the large-pore filter respectively. The inner diameter of one end of the left connecting pipe is smaller, and the inner diameter of the other end of the left connecting pipe is larger. The large-pore filter and the two first rubber rings are fixed to the end of the left connecting pipe with a larger inner diameter, and the two second rubber rings are fixedly connected to the two sides of the small-pore filter respectively. The inner diameter of one end of the right connecting pipe is smaller, and the inner diameter of the other end of the right connecting pipe is larger. The small-pore filter and the two second rubber rings are fixed to the end of the right connecting pipe with a larger inner diameter, so that the device can filter foreign objects of different sizes to avoid the occurrence of pipeline blockage.

[0004] When the above structure is in use, the moving component lacks a limiting structure. When the hand wheel is subjected to external force, it is easy to cause the hand wheel to rotate, which will affect the stability of the valve when in use. Utility Model Content

[0005] 1. Technical issues to be resolved

[0006] In view of the deficiencies in the prior art, the utility model provides a valve casting.

[0007] (II) Technical solution

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve casting, comprising a valve, a handwheel is provided at the upper end of the valve, a disc is provided on the circumference of the handwheel, two positioning frames are symmetrically arranged at the upper end of the valve, a moving block is slidably arranged between the two positioning frames, a limiting rod passing through a through hole is provided at the upper end of the moving block, a driving shaft is rotatably arranged between the two positioning frames, the driving shaft is meshed with the moving block, one end of the driving shaft is provided with a driving shaft located outside the positioning frame, a cavity is provided inside the moving block, a vertical rod inserted into the cavity is provided at the upper end of the valve, and a spring penetrated by the vertical rod is provided between the moving block and the valve.

[0009] In order to improve the stability of the moving block during lifting, the utility model is improved in that a slide groove is provided on the inner wall of the positioning frame, and sliding blocks slidably connected to the slide groove are provided on both sides of the moving block.

[0010] Furthermore, the improvement of the utility model is that the slide groove is a T-shaped structure.

[0011] Furthermore, the utility model is improved in that a limit block is fixedly provided at the bottom end of the moving block.

[0012] Furthermore, the improvement of the utility model is that the limit block is fixed to the bottom of the moving block by screws.

[0013] Furthermore, the improvement of the utility model is that the limiting rod is inserted into the interior of the moving block, and the limiting rod is threadedly connected to the moving block.

[0014] (III) Beneficial effects

[0015] Compared with the prior art, the utility model provides a valve casting, which has the following beneficial effects:

[0016] For this valve casting, when the position of the hand wheel is adjusted, the driving wheel is rotated, and the driving shaft will rotate at this time. The moving block can be raised and lowered between the two positioning frames through the meshing effect, and the limit rod can pass through the through hole. The number of through holes is not mandatory here. When the limit rod passes through the through hole, the state of the spring is normal, which can make the position of the moving block between the two positioning frames more stable, thereby improving the stability of the valve when in use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the structure of the utility model Figure 1 ;

[0018] Figure 2 This is a schematic diagram of the structure of the utility model Figure 2 ;

[0019] Figure 3 For this utility model Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0020] Figure 4 For this utility model Figure 2 A schematic diagram of the local enlarged structure at B in the middle;

[0021] In the figure: 1. valve; 2. hand wheel; 3. disc; 4. through hole; 5. positioning frame; 6. moving block; 7. limit rod; 8. slide groove; 9. slider; 10. drive shaft; 11. drive wheel; 12. vertical rod; 13. spring; 14. limit block. DETAILED DESCRIPTION

[0022] 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. 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.

[0023] See also Figure 1-4 A valve casting, comprising a valve 1, a hand wheel 2 is provided at the upper end of the valve 1, a disc 3 is provided on the circumference of the hand wheel 2, two positioning frames 5 are symmetrically provided at the upper end of the valve 1, a moving block 6 is slidably provided between the two positioning frames 5, a limiting rod 7 penetrating a through hole 4 is provided at the upper end of the moving block 6, a driving shaft 10 is rotatably provided between the two positioning frames 5, the driving shaft 10 is meshed with the moving block 6, one end of the driving shaft 10 is provided with a driving shaft 10 located outside the positioning frame 5, a cavity is provided inside the moving block 6, a vertical rod 12 inserted into the cavity is provided at the upper end of the valve 1, and a spring 13 penetrated by the vertical rod 12 is provided between the moving block 6 and the valve 1;

[0024] In this structure, the hand wheel 2 is turned to open or close the valve 1. When the position of the hand wheel 2 is adjusted, the driving wheel 11 is turned, and the driving shaft 10 rotates. The moving block 6 can be lifted and lowered between the two positioning frames 5 through the meshing effect, and the limiting rod 7 can pass through the through hole 4. The number of through holes 4 is not mandatory here. After the limiting rod 7 passes through the through hole 4, the state of the spring 13 is normal, which can make the position of the moving block 6 between the two positioning frames 5 more stable, thereby improving the stability of the valve 1 when in use.

[0025] When the hand wheel 2 needs to be rotated, the moving block 6 is lowered, and the vertical rod 12 is inserted into the cavity, so that the spring 13 can be compressed. The structure is simple and the operation is convenient.

[0026] The lack of a guiding structure between the moving block 6 and the positioning frame 5 will affect the stability of the moving block 6 during lifting and lowering. A sliding groove 8 is provided on the inner wall of the positioning frame 5, and sliding blocks 9 are provided on both sides of the moving block 6 for sliding connection with the sliding groove 8. The sliding groove 8 is a T-shaped structure. Through the cooperation of the sliding groove 8 and the sliding block 9, a guiding structure can be provided between the moving block 6 and the positioning frame 5, which can improve the stability of the moving block 6 during lifting and lowering.

[0027] Furthermore, a limit block 14 is fixedly provided at the bottom end of the moving block 6, and the limit block 14 is fixed to the bottom of the moving block 6 by screws. The limit block 14 can limit the moving block 6. When the limit block 14 touches the driving shaft 10, the position of the moving block 6 will not continue to rise.

[0028] Furthermore, the limit rod 7 is inserted into the interior of the moving block 6, and the limit rod 7 is threadedly connected to the moving block 6. The limit rod 7 and the moving block 6 can be made of metal. When the limit rod 7 is damaged, the limit rod 7 is rotated to remove the limit rod 7 from the moving block 6. The structure is simple and the operation is convenient.

[0029] In the description of this article, it should be noted that relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0030] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A valve casting, comprising a valve (1), wherein a hand wheel (2) is provided at the upper end of the valve (1), and a disc (3) is provided on the circumference of the hand wheel (2), wherein: Two positioning frames (5) are symmetrically arranged at the upper end of the valve (1), a moving block (6) is slidably arranged between the two positioning frames (5), a limiting rod (7) penetrating the through hole (4) is arranged at the upper end of the moving block (6), a driving shaft (10) is rotatably arranged between the two positioning frames (5), the driving shaft (10) is meshed with the moving block (6), one end of the driving shaft (10) is provided with the driving shaft (10) located outside the positioning frame (5), a cavity is arranged inside the moving block (6), a vertical rod (12) inserted into the cavity is arranged at the upper end of the valve (1), and a spring (13) penetrated by the vertical rod (12) is arranged between the moving block (6) and the valve (1).

2. A valve casting according to claim 1, characterized in that: A sliding groove (8) is provided on the inner wall of the positioning frame (5), and sliding blocks (9) slidably connected to the sliding groove (8) are provided on both sides of the moving block (6).

3. A valve casting according to claim 2, characterized in that: The slide groove (8) is a T-shaped structure.

4. A valve casting according to claim 3, characterized in that: A limit block (14) is fixedly disposed at the bottom end of the moving block (6).

5. A valve casting according to claim 4, characterized in that: The limiting block (14) is fixed to the bottom of the moving block (6) by means of screws.

6. A valve casting according to claim 5, characterized in that: The limiting rod (7) is inserted into the interior of the moving block (6), and the limiting rod (7) is threadedly connected to the moving block (6).

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