Valve handle capable of preventing misoperation

Abstract

The utility model relates to the technical field of valve control, and adopts the technical scheme that the valve handle capable of preventing misoperation comprises a valve body, a mounting hole is formed in the front side of the valve body, a valve rod is connected in the mounting hole, the front end of the valve rod penetrates through an operating handle and is connected with a fastening nut, and first connecting blocks are symmetrically mounted on the side surface of the right end of the operating handle; the side face of the first connecting block is connected with a reset spring, and the other end of the reset spring is connected with a second connecting block. According to the utility model, the protection sleeve and the limiting rod are ingeniously integrated on the valve handle to prevent mistaken touch, and the innovation aims to effectively prevent the unexpected opening or closing phenomenon of the valve caused by accidental touch of the handle. Aiming at the problem that serious potential safety hazards are caused by accidental actions of a valve in high-risk environments such as production and filling of hazardous chemicals due to the fact that a necessary mistaken touch prevention structure is lacked in an existing valve operation handle, the safety protection performance of operation is enhanced, and the safety and the reliability of valve operation are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of valve control, in particular to a valve handle which can prevent misoperation. Background Art

[0002] A valve handle is a device used to operate a valve. It is usually installed on the valve to control the opening and closing of the valve by rotation or other means.

[0003] Common valve handles are prone to accidental touches during operation due to the lack of anti-accidental touch structure, especially in the field of hazardous chemical filling. Operators are prone to touch the valve handle when disassembling the crane pipe, causing the valve to open or close accidentally, posing a safety hazard to the production and filling of hazardous chemicals and reducing the safety and reliability of the valve.

[0004] Therefore, the problem that the above-mentioned valve handle lacks an anti-accidental touch structure and is prone to accidental touch during operation needs to be solved urgently to improve the safe use scenario of the valve handle. Utility Model Content

[0005] In order to overcome the common valve handle, due to the lack of anti-mistouch structure, it is easy to accidentally touch the valve handle, causing the valve to open or close abnormally, bringing safety hazards to the production and filling of hazardous chemicals, thereby reducing the safety and reliability of the valve.

[0006] The technical solution of the utility model is: a valve handle for preventing misoperation, comprising a valve body, a mounting hole is opened on the front side of the valve body, a valve stem is connected inside the mounting hole, the front end of the valve stem passes through the operating handle and is connected with a fastening nut, a first connecting block is symmetrically installed on the right end side of the operating handle, a reset spring is connected to the side of the first connecting block, the other end of the reset spring is connected to the second connecting block, limiting holes are symmetrically opened on the front side of the valve body, a compression spring is arranged inside the limiting hole, the other end of the compression spring is connected to a limiting rod, and the other end of the limiting rod is connected to a U-shaped pressure plate.

[0007] Preferably, a plurality of return springs are symmetrically installed on the right end of the operating handle, which can be used to connect a protective sleeve. When the valve needs to be opened or closed by the operating handle, the protective sleeve needs to be held and turned upward or downward. When the protective sleeve rotates, the return spring will be driven to shrink inward. Only when the return spring is shrunk into place will the protective sleeve drive the operating handle to rotate, thereby avoiding the operator from opening or closing the valve due to accidental touch, thereby improving the safety and reliability of the valve use; and the limit rod can be used to limit the two sides of the left end of the operating handle so that the left end of the operating handle cannot move freely, thereby further preventing safety hazards caused by accidental touch; when the valve needs to be actively opened or closed, it is necessary to press the U-shaped pressure plate first so that the U-shaped pressure plate drives the limit rod and the compression spring to move toward the inside of the limit hole, thereby releasing the restriction of the limit rod on the operating handle, so as to achieve the purpose of improving the safety and reliability of the valve use.

[0008] Preferably, an upper fixed plate is provided on the top of the valve body, and a lower fixed plate is provided on the bottom of the valve body. Two positioning rods are symmetrically installed on the top of the upper fixed plate. The lower ends of the positioning rods are through-connected with the upper fixed plate, the valve body and the lower fixed plate. The positioning rods can facilitate the installation of the upper fixed plate and the lower fixed plate, thereby improving the efficiency of valve installation.

[0009] Preferably, four fixing screws are installed at equal intervals on the top of the upper fixed plate, and the lower ends of the fixing screws are connected through the upper fixed plate, the valve body and the lower fixed plate. The fixing screws can be used to fix the upper and lower fixed plates to the upper and lower sides of the valve body, thereby improving the stability of the valve installation.

[0010] Preferably, a fixing hole is opened on the front side of the left end of the operating handle, and the front end of the valve stem passes through the fixing hole and is connected to the fastening nut. The operating handle can be fixed to the front end of the valve stem through the fastening nut, so that the operating handle can drive the valve stem to rotate synchronously to achieve the effect of opening and closing the valve.

[0011] Preferably, a fixing screw is symmetrically arranged on the right end of the U-shaped pressure plate, the bottom of the fixing screw passes through the U-shaped pressure plate and is connected to the limit rod, and the two limit rods are located on both sides of the left end of the operating handle. The fixing screw can be used to facilitate the installation of the U-shaped pressure plate on the front end of the limit rod, and the limit rod can be used to limit both sides of the left end of the operating handle so that it will not rotate easily.

[0012] Preferably, a protective sleeve is provided on the outer side of the right end of the operating handle, and the second connecting block is fixedly mounted on the inner side wall of the protective sleeve. The protective sleeve can protect the right end of the operating handle to prevent it from rotating due to accidental contact, thereby improving safety of use.

[0013] Preferably, the front end of the limit rod is a chamfered structure, and the compression spring and the limit rod are both made of stainless steel. By providing a chamfer at the front end of the limit rod, the operating handle can be prevented from being blocked when rotating, making the movement of the operating handle smoother. Moreover, by making the compression spring and the limit rod of stainless steel, rust can be avoided due to long-term outdoor use, thereby improving durability.

[0014] Beneficial effects of the utility model:

[0015] 1. By setting a protective sleeve and a limit rod on the valve operating handle, it is possible to prevent the operating handle from accidentally touching the valve and causing abnormal opening and closing of the valve. This is to solve the problem that the common valve operating handle is prone to accidental touching during operation due to the lack of an anti-accidental touching structure. Especially in the field of hazardous chemical filling, the operator is prone to touching the valve operating handle when disassembling the crane pipe, causing the valve to open or close accidentally, which brings safety hazards to the production and filling of hazardous chemicals and reduces the safety and reliability of the valve;

[0016] 2. By setting multiple reset springs, it can be used to connect the protective sleeve. When the valve needs to be opened or closed by the operating handle, it is necessary to hold the protective sleeve and turn it upward or downward. When the protective sleeve rotates, it will drive the reset spring to shrink inward. Only when the reset spring shrinks into place, the protective sleeve will drive the operating handle to rotate, thereby avoiding the construction personnel from opening or closing the valve due to accidental touch, thereby improving the safety and reliability of valve use; and the limit rod can be used to limit the two sides of the left end of the operating handle, so that the left end of the operating handle cannot move freely, thereby further preventing safety hazards caused by accidental touch; when the valve needs to be actively opened or closed, it is necessary to press the U-shaped pressure plate first, so that the U-shaped pressure plate drives the limit rod and the compression spring to move toward the inside of the limit hole, thereby releasing the limit rod from the restriction on the operating handle, so as to achieve the purpose of improving the safety and reliability of valve use. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 What is shown is a schematic diagram of a three-dimensional structure of a valve handle for preventing misoperation of the utility model;

[0018] Figure 2 The following is a schematic diagram of the structure of a valve handle for preventing misoperation according to the utility model when viewed from above;

[0019] Figure 3 Shown is a schematic diagram of the explosion structure of a valve handle protective sleeve for preventing misoperation of the utility model;

[0020] Figure 4 Shown is a schematic diagram of the explosion structure of a valve handle limit rod for preventing misoperation of the utility model.

[0021] In the figure: 1. valve body; 2. upper fixing plate; 3. lower fixing plate; 4. positioning rod; 5. fixing screw; 6. mounting hole; 7. valve stem; 8. operating handle; 9. fixing hole; 10. fastening nut; 11. first connecting block; 12. reset spring; 13. second connecting block; 14. protective sleeve; 15. limiting hole; 16. compression spring; 17. limiting rod; 18. U-shaped pressure plate; 19. fixing screw. DETAILED DESCRIPTION

[0022] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0023] See also Figure 1-Figure 4 The utility model provides an embodiment: a valve handle for preventing misoperation, comprising a valve body 1, a mounting hole 6 is provided on the front side of the valve body 1, a valve stem 7 is connected inside the mounting hole 6, the front end of the valve stem 7 passes through an operating handle 8 and is connected with a fastening nut 10, a first connecting block 11 is symmetrically installed on the right end side of the operating handle 8, a return spring 12 is connected to the side of the first connecting block 11, the other end of the return spring 12 is connected to a second connecting block 13, a limiting hole 15 is symmetrically provided on the front side of the valve body 1, a compression spring 16 is arranged inside the limiting hole 15, the other end of the compression spring 16 is connected to a limiting rod 17, and the other end of the limiting rod 17 is connected to a U-shaped pressure plate 18.

[0024] See also Figure 1-Figure 4 In this embodiment, an upper fixed disk 2 is arranged on the top of the valve body 1, and a lower fixed disk 3 is arranged on the bottom of the valve body 1. Two positioning rods 4 are symmetrically installed on the top of the upper fixed disk 2. The lower ends of the positioning rods 4 are connected through the upper fixed disk 2, the valve body 1 and the lower fixed disk 3. The positioning rods 4 can facilitate the installation of the upper fixed disk 2 and the lower fixed disk 3, thereby improving the efficiency of valve installation. Four fixing screws 5 are installed at equal intervals on the top of the upper fixed disk 2. The lower ends of the fixing screws 5 are connected through the upper fixed disk 2, the valve body 1 and the lower fixed disk 3. The fixing screws 5 can be used to fix the upper fixed disk 2 and the lower fixed disk 3 to the upper and lower sides of the valve body 1, thereby improving the stability of valve installation. A fixing hole 9 is opened on the front side of the left end of the operating handle 8. The front end of the valve stem 7 passes through the fixing hole 9 and is connected with a fastening nut 10. The operating handle 8 can be fixed to the front end of the valve stem 7 through the fastening nut 10, so that the operating handle 8 can drive the valve stem 7 to rotate synchronously to achieve the effect of opening and closing the valve.

[0025] See also Figure 1-Figure 4In this embodiment, a fixing screw 19 is symmetrically arranged at the right end of the U-shaped pressure plate 18, and the bottom of the fixing screw 19 passes through the U-shaped pressure plate 18 and is connected to the limit rod 17, and the two limit rods 17 are located on both sides of the left end of the operating handle 8. The fixing screw 19 can be used to easily install the U-shaped pressure plate 18 on the front end of the limit rod 17, and the limit rod 17 can limit the left end of the operating handle 8. Both sides, so that it will not rotate easily, the outer side of the right end of the operating handle 8 is ringed with a protective sleeve 14, and the second connecting block 13 is fixedly installed inside the protective sleeve 14 On the side wall, the right end of the operating handle 8 can be protected by a protective sleeve 14 to prevent it from rotating due to accidental contact, thereby improving safety in use. The front end of the limit rod 17 is a chamfered structure, and the compression spring 16 and the limit rod 17 are both made of stainless steel. By providing a chamfer at the front end of the limit rod 17, the operating handle 8 can be prevented from being blocked when rotating, making the movement of the operating handle 8 smoother. The compression spring 16 and the limit rod 17 are made of stainless steel to prevent rust due to long-term outdoor use, thereby improving durability.

[0026] When working, when it is necessary to open or close the valve by operating the handle 8, it is necessary to hold the protective sleeve 14 and rotate it upward or downward. When the protective sleeve 14 rotates, it will drive the reset spring 12 to shrink inward. Only when the reset spring 12 shrinks into place, the protective sleeve 14 will drive the operating handle 8 to rotate, thereby avoiding the construction personnel from opening or closing the valve due to accidental touch, thereby improving the safety and reliability of the valve use, and the limit rod 17 can be used to limit the two sides of the left end of the operating handle 8, so that the left end of the operating handle 8 cannot move freely, thereby further preventing the safety hazards caused by accidental touch. When it is necessary to actively open or close the valve, it is necessary to press the U-shaped pressure plate 18 first, so that the U-shaped pressure plate 18 drives the limit rod 17 and the compression spring 16 to move toward the inside of the limit hole 15, thereby releasing the limit rod 17 from the restriction on the operating handle 8, so as to achieve the purpose of improving the safety and reliability of the valve use.

[0027] According to the above steps, by providing the protective sleeve 14 and the limit rod 17, the operating handle 8 is effectively prevented from being accidentally touched, and the valve is prevented from malfunctioning. This is to address the common problem of the valve operating handle lacking an anti-misoperation design, especially in hazardous chemical operations, to reduce the risk of misoperation, improve the safety and reliability of valve operation, and ensure production safety.

[0028] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A valve handle for preventing misoperation, comprising a valve body (1), characterized in that: A mounting hole (6) is provided on the front side of the valve body (1), a valve stem (7) is connected inside the mounting hole (6), the front end of the valve stem (7) passes through the operating handle (8) and is connected to the fastening nut (10), a first connecting block (11) is symmetrically installed on the right end side of the operating handle (8), a return spring (12) is connected to the side of the first connecting block (11), the other end of the return spring (12) is connected to the second connecting block (13), a limiting hole (15) is symmetrically provided on the front side of the valve body (1), a compression spring (16) is arranged inside the limiting hole (15), the other end of the compression spring (16) is connected to the limiting rod (17), and the other end of the limiting rod (17) is connected to the U-shaped pressure plate (18).

2. A valve handle for preventing misoperation according to claim 1, characterized in that: An upper fixed plate (2) is arranged at the top of the valve body (1), a lower fixed plate (3) is arranged at the bottom of the valve body (1), two positioning rods (4) are symmetrically installed on the top of the upper fixed plate (2), and the lower ends of the positioning rods (4) are connected to the upper fixed plate (2), the valve body (1) and the lower fixed plate (3).

3. A valve handle for preventing misoperation according to claim 2, characterized in that: Four fixing screws (5) are installed at equal intervals on the top of the upper fixing plate (2), and the lower ends of the fixing screws (5) are connected through the upper fixing plate (2), the valve body (1) and the lower fixing plate (3).

4. A valve handle for preventing misoperation according to claim 1, characterized in that: A fixing hole (9) is provided at the front side of the left end of the operating handle (8), and the front end of the valve stem (7) passes through the fixing hole (9) and is connected to the fastening nut (10).

5. A valve handle for preventing misoperation according to claim 1, characterized in that: A fixing screw (19) is symmetrically arranged at the right end of the U-shaped pressing plate (18), and the bottom of the fixing screw (19) passes through the U-shaped pressing plate (18) and is connected to the limiting rod (17), and the two limiting rods (17) are located on both sides of the left end of the operating handle (8).

6. A valve handle for preventing misoperation according to claim 1, characterized in that: A protective sleeve (14) is sleeved on the outer side of the right end of the operating handle (8), and the second connecting block (13) is fixedly mounted on the inner side wall of the protective sleeve (14).

7. A valve handle for preventing misoperation according to claim 1, characterized in that: The front end of the limiting rod (17) is a chamfered structure, and the compression spring (16) and the limiting rod (17) are both made of stainless steel.

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