A device for changing the safe position of a valve handle

Abstract

The utility model relates to a device of changing valve handle operation safety position relates to valve operation safety technical field, including connecting structure and operation handle, connecting structure includes connecting head, connecting head is set on adapter, adapter is set on operation handle, operation handle includes transmission head, and the end of transmission head is equipped with ratchet tooth, transmission head abuts power head, and the end of power head is equipped with ratchet tooth, and two ratchet teeth abutment engagement, and the outside of transmission head and power head junction is equipped with sheath, and the end of power head away from ratchet tooth is fixedly connected with pressure bar, compared with prior art, the utility model has the advantages of: realize dynamic locking and prevent microdisplacement, improve operation safety, limit rotation freedom, enhance the adaptation accuracy, automatic recovery locking state, reduce the risk of misoperation, optimize ergonomics, modular design adapts to multi-specification valve, significantly improve the device versatility and reliability.

Description

Technical Field

[0001] This application relates to the field of valve operation safety technology, and in particular to a device for changing the safe operating position of a valve handle. Background Technology

[0002] As a core control component in industrial pipeline systems, the operational safety of valves directly impacts the stability of equipment operation and the safety of personnel. With the advancement of industrial automation, the design of valve operating devices is gradually moving towards higher efficiency and greater intelligence. Traditional valve handles often employ a fixed structure, requiring operators to manually rotate the handle to open and close the valve. However, this design carries the risk of misoperation under complex operating conditions.

[0003] Although existing technologies have attempted to improve the safety of valve handles through mechanical structure optimization, significant shortcomings remain. First, traditional limit devices mostly employ static locking methods, that is, restricting the handle to a specific angle through fixed slots or latches, but such designs cannot dynamically adapt to changes in safety requirements during operation. Utility Model Content

[0004] This application provides a device for changing the safe operating position of a valve handle, which solves the problems of insufficient flexibility in static locking and high maintenance complexity that are commonly faced by existing valve handle limiting technologies.

[0005] This application provides a device for changing the safe operating position of a valve handle, including a connecting structure and an operating handle. The connecting structure includes a connector, which is sleeved on an adapter, and the adapter is sleeved on the operating handle.

[0006] The operating handle includes a transmission head, the end of which is provided with ratchet teeth. The transmission head abuts against the power head, the end of which is provided with ratchet teeth. The two ratchet teeth abut and mesh. A sleeve is provided on the outside of the connection between the transmission head and the power head. A pressure rod is fixedly connected to the end of the power head away from the ratchet teeth.

[0007] As an improvement, the connector is provided with several fixing grooves, the bottom of the fixing grooves is rounded, and the spacing angle between two adjacent fixing grooves is the same. There are connectors of different specifications, and the number and width of the fixing grooves are different to accommodate valves of different specifications.

[0008] As an improvement, the connector head is provided with a connection hole, which is a regular hexagonal prism. Once the hexagonal prism is formed and fixed, it can restrict the degree of freedom of rotation direction.

[0009] As an improvement, the adapter end is provided with a limiting post, which is inserted into the connection hole to ensure that the adapter can be stably connected to the connector. The limiting post and the connection hole adopt a clearance fit.

[0010] As an improvement, a frustum is fixedly connected to the bottom of the limiting post, the frustum is fixedly connected to the cylinder, and the bottom of the cylinder is fixedly connected to the second limiting post. The function of the frustum is to change the diameter, making the second limiting post thicker, which facilitates docking.

[0011] As an improvement, the transmission head is provided with a second connection hole, which is inserted into the second limiting post.

[0012] As an improvement, the transmission head is provided with a mounting groove, and the power head is provided with a sliding groove. The mounting groove and the sliding groove are connected to the sleeve. The length of the sliding groove is less than the sum of the thickness of the part of the sleeve inserted into the sliding groove and the extended length of the spring.

[0013] As an improvement, a spring is fitted inside the sliding groove. The spring and the sleeve cooperate to abut against each other. The function of the spring is to reset the sleeve. In actual use, when the pressure rod is moved along the direction of the ratchet teeth, the two power heads will be lifted up. After the angle change is completed, the spring will reset the power heads.

[0014] As an improvement, the sleeve is a U-shaped rotating body, and the sleeve is a mirror-symmetrical split structure, making the split parts easy to install.

[0015] As an improvement, the pressure bar and the power head are perpendicular, and the vertically distributed pressure bars make it easier for the operator to change the direction and position of operation.

[0016] Compared with the prior art, the advantages of this utility model are as follows: dynamic locking and prevention of micro-displacement are achieved through double ratchet meshing and concave sleeve design, improving operational safety; the clearance fit between the regular hexagonal prism connecting hole and the limiting post restricts the degree of rotational freedom, enhancing the fitting accuracy; the spring reset structure automatically restores the locking state, reducing the risk of misoperation; the vertical layout of the pressure rod optimizes ergonomics, and the modular design adapts to multiple valve specifications, significantly improving the versatility and reliability of the device. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the technical solution of this utility model and constitute a part of the specification. They are used together with the embodiments of this application to explain the technical solution of this utility model and do not constitute a limitation on the technical solution of this utility model.

[0018] Figure 1 A front view provided for embodiments of this application;

[0019] Figure 2 A top view provided for an embodiment of this application;

[0020] Figure 3 A perspective view provided for an embodiment of this application;

[0021] Figure 4 Three-dimensional representations provided for embodiments of this application Figure 2 ;

[0022] Figure 5 A cross-sectional view of section AA provided for an embodiment of this application;

[0023] Figure 6 A schematic diagram of the internal structure provided for an embodiment of this application;

[0024] Figure 7 Internal structure diagram provided for embodiments of this application Figure 2 .

[0025] The components are as follows: 1. Connecting structure; 11. Connector; 111. Fixing groove; 112. Connecting hole; 12. Adapter; 121. Limiting post; 122. Frustum; 123. Cylinder; 124. Second limiting post; 2. Operating handle; 21. Transmission head; 211. Second connecting hole; 212. Mounting groove; 22. Ratchet tooth; 23. Power head; 231. Sliding groove; 24. Sleeve; 25. Pressure rod; 26. Spring. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0028] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, unless otherwise stated, "a plurality of" means two or more.

[0029] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly, for example, as a fixed connection, a detachable connection, or an integral connection. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances. Furthermore, when describing pipelines, the terms "connected" and "linked" as used in this application have the meaning of establishing electrical connection. The specific meaning needs to be understood in conjunction with the context.

[0030] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0031] like Figures 1-7 A device for changing the safe operating position of a valve handle includes a connecting structure 1 and an operating handle 2. The connecting structure 1 includes a connector 11, which is sleeved on an adapter 12, and the adapter 12 is sleeved on the operating handle 2.

[0032] The operating handle 2 includes a transmission head 21, with ratchet teeth 22 at the end of the transmission head 21. The transmission head 21 abuts against the power head 23, and the power head 23 has ratchet teeth 22 at the end. The two ratchet teeth 22 abut and mesh. A sleeve 24 is provided on the outside of the connection between the transmission head 21 and the power head 23. A pressure rod 25 is fixedly connected to the end of the power head 23 away from the ratchet teeth 22.

[0033] As an improvement, the connector 11 is provided with several fixing grooves 111, the bottom of the fixing grooves 111 is rounded, and the spacing angle between two adjacent fixing grooves 111 is the same. There are connectors 11 of different specifications, and the number and width of fixing grooves 111 are different to accommodate valves of different specifications.

[0034] As an improvement, the connector 11 is provided with a connection hole 112, which is a regular hexagonal prism. Once the hexagonal prism is formed and fixed, it can restrict the degree of freedom of rotation direction.

[0035] As an improvement, the adapter 12 is provided with a limiting post 121 at its end. The limiting post 121 is inserted into the connecting hole 112 to ensure that the adapter 12 can be stably connected to the connector 11. The limiting post 121 and the connecting hole 112 are fitted with a clearance.

[0036] As an improvement, a frustum 122 is fixedly connected to the bottom of the limiting post 121, and a cylinder 123 is fixedly connected to the frustum 122. A second limiting post 124 is fixedly connected to the bottom of the cylinder 123. The function of the frustum 122 is to change the diameter, making the second limiting post 124 thicker, which facilitates docking.

[0037] As an improvement, the transmission head 21 is provided with a second connection hole 211, which is inserted into the second limiting post 124.

[0038] As an improvement, the transmission head 21 is provided with a mounting groove 212, and the power head 23 is provided with a sliding groove 231. The mounting groove 212 and the sliding groove 231 are connected to the sleeve 24. The length of the sliding groove 231 is less than the sum of the thickness of the part of the sleeve 24 inserted into the sliding groove 231 and the extended length of the spring 26.

[0039] As an improvement, a spring 26 is provided inside the sliding groove 231. The spring 26 and the sleeve 24 are in contact. The function of the spring 26 is to reset the sleeve 24. In actual use, when the pressure rod 25 is moved along the direction of the ratchet tooth 22, the two power heads 23 will be lifted. After the angle change is completed, the spring 26 will reset the power head 23.

[0040] As an improvement, the sleeve 24 is a U-shaped rotating body, and the sleeve 24 is a mirror-symmetrical split structure, which makes the split parts easy to install.

[0041] As an improvement, the pressure rod 25 is perpendicular to the power head 23, and the vertically distributed pressure rod 25 makes it convenient for the operator to change the operating direction and position.

[0042] Example: Working process and principle of a device for changing the safe operating position of a valve handle

[0043] I. Overall Equipment Structure Assembly

[0044] Assembly of connection structure 1

[0045] The connector 11 is inserted into the limiting post 121 of the adapter 12 through the fixing groove 111 on its outer side. The rounded corner structure at the bottom of the fixing groove 111 forms a clearance fit with the surface of the valve connecting rod.

[0046] The bottom of the limiting post 121 of the adapter 12 is connected to the second limiting post 124 via a frustum 122 and a cylinder 123. The conical structure of the frustum 122 is used to bridge the diameter difference between the limiting post 121 and the second limiting post 124, ensuring the stability of the second limiting post 124.

[0047] Assembly of operating handle 2

[0048] The end of the transmission head 21 is provided with ratchet teeth 22, which engage with the ratchet teeth 22 of the power head 23 to form a one-way locking mechanism. A sleeve 24 is fitted on the outside of the connection between the transmission head 21 and the power head 23. The sleeve 24 is a U-shaped rotating body. Its mirror-symmetrical split structure is fixed by buckles or screws, which facilitates disassembly and maintenance.

[0049] The end of the power head 23 away from the ratchet tooth 22 is vertically fixed to the pressure rod 25. The pressure rod 25 is at a 90° angle to the axis of the power head 23, ensuring that the operator can apply force from different directions.

[0050] Assembly of transmission and reset mechanisms

[0051] The second connecting hole 211 of the transmission head 21 is inserted into the second limiting post 124 to form a rigid connection between the transmission head 21 and the adapter 12.

[0052] The sliding groove 231 of the power head 23 is engaged with the groove of the sleeve 24. A spring 26 is nested inside the sliding groove 231. One end of the spring 26 abuts against the bottom of the sliding groove 231, and the other end contacts the protrusion of the sleeve 24, forming an elastic reset mechanism.

[0053] II. Work Process and Principles

[0054] 1. The valve is not operated in the initial state.

[0055] Component location:

[0056] The pressure rod 25 is in a natural hanging state, and the power head 23 is pushed to the outermost side and close to the transmission head 21 under the action of the spring 26.

[0057] The ratchet teeth 22 of the transmission head 21 are fully engaged with the ratchet teeth 22 of the power head 23, forming a one-way locking that restricts the free rotation of the operating handle 2.

[0058] The groove of the sleeve 24 is completely nested with the sliding groove 231, and the spring 26 is in a compressed state, storing reset energy.

[0059] 2. Start the operation and adjust the safe position.

[0060] Operating steps:

[0061] Applying external force: The operator pushes the pressure rod 25 clockwise or counterclockwise along the meshing direction of the ratchet teeth 22 to overcome the resistance of the spring 26.

[0062] The power head 23 lifts up: the vertical pressure of the pressure rod 25 is transmitted to the power head 23, causing it to move towards the transmission head 21, and the spring 26 in the sliding groove 231 is further compressed.

[0063] Ratchet teeth 22 disengage: The movement of the power head 23 causes its ratchet teeth 22 to disengage from the ratchet teeth 22 of the transmission head 21, releasing the locking state.

[0064] Rotating the operating handle 2: The operator rotates the operating handle 2, which, through the rigid transmission between the transmission head 21 and the connecting hole 211 of the adapter 12 and the limiting post 124, drives the valve handle to adjust to the target safe position.

[0065] 3. After the reset and lock operation is completed

[0066] Automatic reset:

[0067] Releasing external force: When the operator releases the pressure rod 25, the spring 26 releases energy in the compressed state, pushing the power head 23 to move away from the transmission head 21.

[0068] Ratchet teeth 22 re-engage: The ratchet teeth 22 of the power head 23 and the ratchet teeth 22 of the transmission head 21 re-engage, forming a new one-way lock, fixing the current position of the operating handle 2, and the operation of turning the valve can begin.

[0069] Positioning of sleeve 24: The nesting depth of the groove of sleeve 24 and sliding groove 231 is adjusted to ensure that spring 26 is in a stable compressed state and to prevent accidental displacement.

[0070] 4. Maintain a safe position

[0071] Locking mechanism:

[0072] The one-way meshing characteristic of the ratchet tooth 22 ensures that the operating handle 2 can only be adjusted to a preset safe angle in a specific direction, such as clockwise. When operating in the opposite direction, the ratchet tooth 22 cannot slide in the opposite direction due to the inclined surface design.

[0073] The mirror-symmetric split structure of the sleeve 24 always fits against the sliding groove 231 under the action of the spring 26, providing additional mechanical damping and preventing minor displacement caused by vibration.

[0074] III. Functional Analysis of Key Components

[0075] Ratchet tooth 22:

[0076] Function: By restricting the free rotation of the operating handle 2 through one-way engagement, it can only be adjusted to a safe position in a preset direction.

[0077] Design details: The bevel angle of the ratchet tooth 22 must match the material hardness of the transmission head 21 and the power head 23 to ensure that it still has sufficient locking force after long-term use.

[0078] Spring 26:

[0079] Function: Provides the reset force of the power head 23 to ensure that the locking state is automatically restored after each operation.

[0080] Parameter requirements: The free length L0 of the spring 26 must be greater than the sum of the length L1 of the sliding groove 231 and the insertion depth L2 of the sleeve 24. L0 > L1 + L2, to avoid reset failure due to insufficient compression.

[0081] Package 24:

[0082] Function: Through the cooperation of the U-shaped structure and the sliding groove 231, it guides the movement trajectory of the power head 23 and also serves as a support for the spring 26.

[0083] Material selection: It is recommended to use high wear-resistant engineering plastics such as polyamide 66 to reduce frictional wear with the sliding groove 231.

[0084] IV. Verification of Technical Effects

[0085] Enhanced security:

[0086] The one-way locking of the ratchet tooth 22 and the automatic reset of the spring 26 effectively prevent the handle from shifting due to misoperation.

[0087] The mirror-symmetric split-type casing design enhances structural redundancy, ensuring basic functionality even if a single component fails.

[0088] Adaptive optimization:

[0089] The spacing angle θ and the number N of the fixed grooves 111 can be adjusted according to the requirements of different valve specifications.

[0090] The clearance fit between the regular hexagonal prism connecting hole 112 and the limiting post 121 ensures assembly accuracy and reduces maintenance costs.

[0091] Ease of use:

[0092] The vertical pressure bar 25 is ergonomically designed, allowing the operator to apply force from different directions.

[0093] The variable diameter structure of the frustum 122 simplifies the docking process of the limiting post 124.

[0094] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A device for changing the safety position of the operation of a valve handle, comprising a connecting structure (1) and an operation handle (2), characterized in that: The connection structure (1) includes a connector (11), which is sleeved on the adapter (12), and the adapter (12) is sleeved on the operating handle (2); The operating handle (2) includes a transmission head (21), the end of the transmission head (21) is provided with ratchet teeth (22), the transmission head (21) abuts against the power head (23), the end of the power head (23) is provided with ratchet teeth (22), the two ratchet teeth (22) abut against each other and mesh, a sleeve (24) is provided on the outside of the connection between the transmission head (21) and the power head (23), and a pressure rod (25) is fixedly connected to the end of the power head (23) away from the ratchet teeth (22).

2. The device for changing the safety position of the handle operation of a valve according to claim 1, characterized in that: The connector (11) is provided with several fixing grooves (111), the bottom of the fixing groove (111) is rounded, and the spacing angle of two adjacent fixing grooves (111) is the same.

3. The device for changing the safety position of the handle operation of the valve according to claim 2, characterized in that: The connector (11) is provided with a connection hole (112), which is a regular hexagonal prism.

4. The device for changing the safety position of the handle operation of a valve according to claim 1, characterized in that: The adapter (12) is provided with a limiting post (121) at its end, and the limiting post (121) is inserted into the connecting hole (112).

5. The device for changing the safety position of the handle operation of the valve according to claim 4, characterized in that: The bottom of the limiting post (121) is fixedly connected to a frustum (122), the frustum (122) is fixedly connected to a cylinder (123), and the bottom of the cylinder (123) is fixedly connected to a second limiting post (124).

6. The device for changing the safe operating position of a valve handle according to claim 1, characterized in that: The transmission head (21) is provided with a second connection hole (211), which is inserted into the second limiting post (124).

7. The device for changing the safety position of the handle operation of a valve according to claim 1, characterized in that: The transmission head (21) is provided with a mounting groove (212), and the power head (23) is provided with a sliding groove (231). The mounting groove (212) and the sliding groove (231) are connected to the sleeve (24).

8. The device for changing the safety position of the handle operation of the valve according to claim 7, characterized in that: A spring (26) is fitted inside the sliding groove (231), and the spring (26) and the sleeve (24) cooperate to abut against each other.

9. The device for changing the safety position of the handle operation of a valve according to claim 1, characterized in that: The sleeve (24) is a U-shaped rotating body, and the sleeve (24) is a mirror-symmetric split structure.

10. The device for changing the safe operating position of a valve handle according to claim 1, characterized in that: The pressure bar (25) and the power head (23) are perpendicular.

Images