Valve with detachable hand wheel

Abstract

The utility model discloses a valve with a detachable hand wheel, which comprises a valve body, a valve cover is arranged at the top of the valve body, a valve rod is rotatably connected in the valve cover, an adjusting hand wheel is arranged at the top of the valve rod, the adjusting hand wheel comprises a holding ring, a plurality of groups of connecting rods are fixedly connected on the inner wall of the holding ring in an annular array, and the connecting rods are connected with the valve cover. One end of each connecting rod is fixedly connected with a fixing block, an inserting groove matched with a valve rod is formed in the bottom of the fixing block, the top end of the valve rod is inserted into the inserting groove, and the fixing block and the valve rod are fixed in a bolted mode through a fixing screw. The adjusting hand wheel can be integrally detached, the detachable hand wheel enables the valve to adapt to different operation requirements, hand wheels of different specifications or types can be conveniently replaced, and therefore operation convenience and flexibility are improved.

Description

Technical Field

[0001] This utility model relates to the field of valve technology, specifically to a valve with a detachable handwheel. Background Technology

[0002] The opening and closing element of a manual gate valve is a gate. The direction of movement of the gate is perpendicular to the direction of fluid flow. Gate valves can only be fully open or fully closed, and cannot be used for regulation or throttling. The gate has two sealing surfaces. The gate of a wedge gate valve can be made into a single piece, called a rigid gate; or it can be made into a gate that can produce slight deformation to improve its manufacturability and compensate for the deviation of the sealing surface angle during processing. This type of gate is called an elastic gate.

[0003] For example, a valve (publication number: CN221075261U) includes a support component, comprising a valve body, a valve cover disposed on the valve body, a valve stem passing through the valve cover, and a turntable disposed at the end of the valve stem; and an installation component, comprising a valve disc disposed on the valve stem, a mounting post disposed on the valve disc, a disassembly assembly disposed on the mounting post, and a fixing assembly disposed on the disassembly assembly. By providing the disassembly assembly and ball bearings on the mounting post on the valve disc, the valve stem and valve disc are rolled together. At the same time, the valve stem is fixed by the fixing assembly, which increases the stability of the valve stem. The rolling connection method can reduce the friction between the valve stem and the valve disc, reduce wear, and extend the service life of the valve disc and the valve stem.

[0004] However, the device still has the following drawbacks:

[0005] The handwheel of the aforementioned valve is not easy to disassemble. In certain situations, it may be necessary to replace it with a handwheel of a different size or type to meet different operational needs. However, if the handwheel is not detachable, this need cannot be met, and the valve's flexibility in use is poor. Therefore, we need to propose a valve with a detachable handwheel. Utility Model Content

[0006] The purpose of this invention is to provide a valve with a detachable handwheel, which aims to solve the problem that in the prior art, the handwheel is not easy to disassemble. In certain specific situations, it may be necessary to replace the handwheel with a different size or type to adapt to different operational needs. However, if the handwheel is not detachable, this need cannot be met, resulting in poor valve flexibility.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A valve with a detachable handwheel includes a valve body, a valve cover on the top of the valve body, a valve stem rotatably connected inside the valve cover, an adjusting handwheel on the top of the valve stem, the adjusting handwheel including a grip ring, a plurality of connecting rods fixedly connected in a ring array on the inner wall of the grip ring, a fixing block fixedly connected to one end of the plurality of connecting rods, a slot adapted to the valve stem being opened at the bottom of the fixing block, the top end of the valve stem being inserted into the inside of the slot, and the fixing block and the valve stem being bolted together and fixed by a fixing screw.

[0009] Preferably, the inner wall of the fixing block is provided with four sets of limiting grooves in a circular array, and the outer wall of the valve stem is fixedly connected with four sets of limiting blocks adapted to the limiting grooves in a circular array, and the four sets of limiting blocks are respectively inserted into the interior of the four sets of limiting grooves.

[0010] Preferably, the top of the fixing block has a threaded through hole adapted to the fixing bolt, the top of the valve stem has a threaded blind hole adapted to the threaded through hole, and the bottom end of the fixing bolt passes through the threaded through hole and is inserted into the threaded blind hole.

[0011] Preferably, a mounting shell is fixedly embedded at the bottom of the valve body, and the top and bottom of the mounting shell are both open. A heating component for heating the inner cavity of the valve body is provided inside the mounting shell.

[0012] Preferably, the heating assembly includes two sets of fans, both sets of fans are fixedly connected to the inner wall of the mounting shell, and the mounting shell is fixedly connected to several sets of heating rods above the two sets of fans.

[0013] Preferably, it also includes a heat exchange plate, which is fixedly embedded in the inner top of the mounting shell and is located in the inner cavity of the valve body.

[0014] Preferably, a dustproof mesh is embedded in the inner bottom of the mounting shell, and small air outlet holes are respectively provided on the two side walls of the mounting shell.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] This invention allows for the complete disassembly of the adjusting handwheel by providing a slot at the bottom of the fixing block and using it in conjunction with a fixing screw. The detachable handwheel enables the valve to adapt to different operational needs, and allows for easy replacement of handwheels of different specifications or types, thereby improving the convenience and flexibility of operation. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the structure of the adjusting handwheel and valve stem of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the fixing block and valve stem of this utility model;

[0020] Figure 4 This is a structural schematic diagram of the mounting shell, heating component, and dustproof mesh plate of this utility model.

[0021] In the diagram: 1. Valve body; 2. Valve cover; 3. Valve stem; 4. Adjusting handwheel; 401. Grip ring; 402. Connecting rod; 403. Fixing block; 5. Slot; 6. Limiting groove; 7. Limiting block; 8. Threaded through hole; 9. Threaded blind hole; 10. Mounting shell; 11. Heating assembly; 1101. Fan; 1102. Heating rod; 1103. Heat exchange plate; 12. Dustproof mesh plate; 13. Small air outlet. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-4 This utility model provides a technical solution:

[0024] A valve with a detachable handwheel includes a valve body 1, a valve cover 2 on the top of the valve body 1, a valve stem 3 rotatably connected inside the valve cover 2, and an adjusting handwheel 4 on the top of the valve stem 3. The adjusting handwheel 4 includes a grip ring 401, and several sets of connecting rods 402 are fixedly connected in a ring array on the inner wall of the grip ring 401. One end of each set of connecting rods 402 is fixedly connected to a fixing block 403. The bottom of the fixing block 403 has a slot 5 that matches the valve stem 3. The top end of the valve stem 3 is inserted into the slot 5. The fixing block 403 and the valve stem 3 are bolted together by a fixing screw. By providing a slot 5 at the bottom of the fixing block 403 and using it in conjunction with the fixing screw, the adjusting handwheel 4 can be disassembled as a whole. The detachable handwheel allows the valve to adapt to different operating needs and allows for easy replacement of handwheels of different specifications or types, thereby improving the convenience and flexibility of operation.

[0025] Furthermore, such as Figure 3As shown, four sets of limiting grooves 6 are arranged in a ring on the inner wall of the fixed block 403, and four sets of limiting blocks 7 that are adapted to the limiting grooves 6 are fixedly connected in a ring on the outer wall of the valve stem 3. The four sets of limiting blocks 7 are respectively inserted into the four sets of limiting grooves 6. By setting the limiting grooves 6 and the limiting blocks 7 in cooperation, the fixed block 403 is limited. When the adjusting handwheel 4 is rotated, the valve stem 3 can be stably driven to rotate.

[0026] Furthermore, such as Figure 2 As shown, the top of the fixing block 403 is provided with a threaded through hole 8 that matches the fixing bolt, and the top of the valve stem 3 is provided with a threaded blind hole 9 that matches the threaded through hole 8. The bottom end of the fixing bolt passes through the threaded through hole 8 and is inserted into the inside of the threaded blind hole 9. By setting the threaded through hole 8, the threaded blind hole 9 and the fixing bolt in cooperation, when it is necessary to disassemble the adjusting handwheel 4 as a whole, only the fixing bolt needs to be removed with a wrench, and then the fixing block 403 can be directly pulled out from the valve stem 3 to complete the disassembly of the adjusting handwheel 4. The operation is simple and quick. The detachable handwheel allows the valve to adapt to different operating requirements and can easily replace handwheels of different specifications or types to improve the convenience and flexibility of operation.

[0027] In this embodiment, as Figure 4 As shown, a mounting shell 10 is fixedly embedded in the bottom of the valve body 1. The top and bottom of the mounting shell 10 are both open. A heating component 11 for heating the inner cavity of the valve body 1 is provided inside the mounting shell 10. By using the mounting shell 10 and the heating component 11 together, the inner cavity of the valve body 1 is heated. When the valve is used in a low temperature environment, the active heating method can provide an antifreeze effect and ensure the normal use of the valve.

[0028] Specifically, such as Figure 4 As shown, the heating assembly 11 includes two sets of fans 1101, both sets of fans 1101 are fixedly connected to the inner wall of the mounting shell 10, and several sets of heating rods 1102 are fixedly connected above the two sets of fans 1101. The heat generated by the heating rods 1102 can be blown upward through the two sets of fans 1101.

[0029] In addition, such as Figure 4 As shown, it also includes a heat exchange plate 1103, which is fixedly embedded in the inner top of the mounting shell 10 and is located in the inner cavity of the valve body 1. When heat is blown upward, the heat will come into contact with the heat exchange plate 1103, thereby heating the heat exchange plate 1103. In turn, the inner cavity of the valve body 1 can be heated through the heat exchange plate 1103 to achieve the antifreeze effect.

[0030] Furthermore, such as Figure 4As shown, a dustproof mesh plate 12 is embedded in the inner bottom of the mounting shell 10, and small air outlet holes 13 are respectively provided on the two side walls of the mounting shell 10. By setting the dustproof mesh plate 12, the dust and other impurities in the outside air are filtered to prevent dust and other impurities from entering the interior of the mounting shell 10, thereby preventing dust from affecting the service life of the fan 1101.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A valve with a detachable handwheel, comprising a valve body (1), characterized in that: The valve body (1) is provided with a valve cover (2) at the top. A valve stem (3) is rotatably connected inside the valve cover (2). An adjusting handwheel (4) is provided at the top of the valve stem (3). The adjusting handwheel (4) includes a grip ring (401). Several sets of connecting rods (402) are fixedly connected in a ring array on the inner wall of the grip ring (401). One end of the several sets of connecting rods (402) is fixedly connected to a fixing block (403). The bottom of the fixing block (403) is provided with a slot (5) that is compatible with the valve stem (3). The top end of the valve stem (3) is inserted into the inside of the slot (5). The fixing block (403) and the valve stem (3) are bolted together and fixed by a fixing screw.

2. The valve with a detachable handwheel according to claim 1, characterized in that: The inner wall of the fixed block (403) is provided with four sets of limiting grooves (6) arranged in a ring. The outer wall of the valve stem (3) is fixedly connected with four sets of limiting blocks (7) that are adapted to the limiting grooves (6). The four sets of limiting blocks (7) are respectively inserted into the four sets of limiting grooves (6).

3. A valve with a detachable handwheel according to claim 2, characterized in that: The top of the fixing block (403) is provided with a threaded through hole (8) that is compatible with the fixing bolt, and the top of the valve stem (3) is provided with a threaded blind hole (9) that is compatible with the threaded through hole (8). The bottom end of the fixing bolt passes through the threaded through hole (8) and is inserted into the inside of the threaded blind hole (9).

4. A valve with a detachable handwheel according to claim 1, characterized in that: The bottom of the valve body (1) is fixedly fitted with a mounting shell (10), the top and bottom of the mounting shell (10) are both open, and the interior of the mounting shell (10) is provided with a heating component (11) for heating the inner cavity of the valve body (1).

5. A valve with a detachable handwheel according to claim 4, characterized in that: The heating assembly (11) includes two sets of fans (1101), both sets of fans (1101) are fixedly connected to the inner wall of the mounting shell (10), and the mounting shell (10) is fixedly connected above the two sets of fans (1101) with several sets of heating rods (1102).

6. A valve with a detachable handwheel according to claim 5, characterized in that: It also includes a heat exchange plate (1103), which is fixedly embedded in the inner top of the mounting shell (10) and is located in the inner cavity of the valve body (1).

7. A valve with a detachable handwheel according to claim 6, characterized in that: The bottom of the mounting shell (10) is fitted with a dustproof mesh plate (12), and small air outlet holes (13) are respectively provided on the two side walls of the mounting shell (10).

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