Valve switch device for easy operation

Abstract

This utility model discloses an easy-to-operate valve switching device, belonging to the field of valve control, which solves the problem of inconvenient valve switching operation in the prior art. It mainly includes a valve with a flange seat and a protective frame; a ferrule is provided on the flange seat; a rotary handwheel is inserted into the ferrule; the rotary handwheel includes a handwheel disc connected to a drive shaft; the drive shaft is connected to a drive block, which has a limit key; the ferrule has several keyways, and the limit key engages with the keyways; a protective frame is provided next to the flange seat, and a locking chain is provided on the protective frame. This utility model adds a limit key that engages with multiple keyways, resulting in higher adaptability. The rotary handwheel, through the engagement of the limit key with the keyways in the ferrule, achieves plug-and-play functionality, making it convenient and flexible. The added locking chain effectively prevents the occurrence of this problem.

Description

Technical Field

[0001] This utility model relates to the field of valve control, and more specifically, to a valve switching device that is easy to operate. Background Technology

[0002] Valves are control components in fluid transport systems. They are used to change the cross-sectional area of ​​the passage and the direction of medium flow, and have functions such as shut-off, regulation, flow guidance, and backflow prevention. Depending on the application, different types of valves will be selected. In the prior art, application CN104154305A discloses a valve handwheel, which cannot be operated for large-diameter valves used in water treatment in inconvenient installation locations, confined underground spaces, or humid environments. It has disadvantages such as being difficult to maintain, time-consuming and labor-intensive, and causing operator fatigue or injury. Electric valves, due to the humid environment, large pipe diameter, and excessive starting torque, are prone to jamming and actuator failure during use, thus posing significant operational drawbacks and potential safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide an easy-to-operate valve switching device to solve the problem of inconvenient valve switching operation in the prior art.

[0004] This utility model is achieved through the following technical solution:

[0005] An easy-to-operate valve switching device includes a valve, on which a flange seat and a protective frame are provided; a ferrule is provided on the flange seat; a rotary handwheel is inserted into the ferrule; the rotary handwheel includes a handwheel disc, which is connected to a drive shaft, which increases the operating torque; the drive shaft is connected to a drive block, which is provided with a limit key; the ferrule is provided with several keyways, and the limit key cooperates with the keyways; a protective frame is provided next to the flange seat, and a locking chain is provided on the protective frame.

[0006] Furthermore, the handwheel includes an outer circle of the handwheel, which is connected to the drive shaft via a connecting rod.

[0007] Furthermore, a reinforcing rib is provided between the outer circle of the handwheel and the transmission shaft; the reinforcing rib is inclined.

[0008] Furthermore, the locking chain includes a hook and an elastic chain; one end of the elastic chain is connected to the hook, and the other end is connected to a fixing sleeve, which is connected to the protective frame.

[0009] Furthermore, limit keys are provided on both sides of the drive block; the number of keyways is greater than the number of limit keys, and the keyways are arranged symmetrically in pairs.

[0010] Furthermore, the outer surface of the handwheel is provided with anti-slip texture.

[0011] Furthermore, a handle is provided on the outer circumference of the handwheel, and the handle is pivotally connected to the handwheel disc.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This invention adds a limit key that works with multiple grooves, resulting in greater adaptability. The rotating handwheel, through the limit key and the keyway inside the sleeve, enables plug-and-play functionality that is convenient and flexible. The sleeve is adjustable. The locking chain is designed to prevent accidental external operation from causing the switch to malfunction, and the added locking chain can effectively avoid this problem. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a practical state diagram of the locking chain of this utility model;

[0016] Figure 3 This is a schematic diagram of the handwheel structure of this utility model;

[0017] Figure 4 This is a schematic diagram of the keyway structure of this utility model;

[0018] Figure 5 This is a schematic diagram of the drive block structure of this utility model.

[0019] In the diagram: 1. Handle; 2. Handwheel; 3. Drive shaft; 4. Reinforcing rib; 5. Protective frame; 6. Locking chain; 7. Drive block; 8. Flange seat; 9. Keyway; 10. Anti-slip texture; 11. Connecting rod; 12. Limit key. Detailed Implementation

[0020] To enable those skilled in the art to better understand the technical solution of this utility model, the technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. Based on the embodiments in this application, other similar embodiments obtained by those skilled in the art without creative effort should all fall within the scope of protection of this application. Furthermore, the directional terms mentioned in the following embodiments, such as "up," "down," "left," and "right," are only for reference to the directions in the accompanying drawings. Therefore, the directional terms used are for illustrative purposes and not for limiting the creation of this utility model.

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Example 1: An easy-to-operate valve switching device, such as... Figures 1-5As shown, the valve is equipped with a flange seat 8 and a protective frame 5; the flange seat 8 is equipped with a ferrule; a rotary handwheel is inserted into the ferrule, and the rotary handwheel cooperates with the keyway 9 in the ferrule through a limit key 12, realizing plug-and-play operation. After operation, the handwheel is removed and stored separately; the rotary handwheel includes a handwheel disc 2, and the handwheel disc 2 is connected to a drive shaft 3; the drive shaft 3 increases the transmission torque, and the drive shaft 3 is connected to a drive block 7, which is equipped with a limit key 12; the ferrule is equipped with a keyway 9, and the limit key 12 cooperates with the keyway 9; a protective frame 5 is provided next to the flange seat 8, and a locking chain 6 is provided on the protective frame 5; the protective frame 5 next to the flange seat 8 protects the key components of the valve from external impact.

[0023] Example 2: A valve switching device that is easy to operate, wherein the handwheel disc 2 includes a handwheel outer circle, which is connected to the transmission shaft 3 via a connecting rod 11. A reinforcing rib 4 is provided between the handwheel outer circle and the transmission shaft 3; the reinforcing rib 4 is inclined. The inclined reinforcing rib 4 increases the connection strength between the handwheel disc 2 and the transmission shaft 3, preventing deformation and breakage during forceful operation.

[0024] The locking chain 6 includes a hook and an elastic chain; one end of the elastic chain is connected to the hook, and the other end is connected to a fixing sleeve, which is connected to the protective frame 5.

[0025] Limiting keys 12 are provided on both sides of the drive block 7; the number of key slots 9 is greater than the number of limiting keys 12, and the key slots 9 are arranged symmetrically in pairs. The symmetrical limiting keys 12 on both sides of the drive block 7, together with the number of key slots 9, support multi-angle insertion and adapt to operation in narrow spaces.

[0026] The outer surface of the handwheel is provided with anti-slip texture 10. A handle 1 is provided on the outer surface of the handwheel, and the handle 1 is pivotally hinged to the handwheel disc 2. The anti-slip texture 10 increases friction; the foldable handle 1 saves space and facilitates gripping during forceful operation. Everything else is the same as in Embodiment 1.

[0027] This invention relates to the opening and closing of valves. A handwheel 2 is connected to a drive shaft 3, and the lower part is a drive block 7 that supports multi-angle insertion. A retaining sleeve is tightly locked to the valve core connecting rod, preventing disengagement. The drive block 7 is connected to the valve core body using a flange connection for fastening. Rotating the upper handwheel drives the drive shaft 3, opening and closing the valve under the tightening force of the retaining sleeve, making it easy, convenient, time-saving, and labor-saving. When the valve is opened or closed to a certain position, a locking chain 6 locks the rotating handwheel, preventing accidental external operation from causing uncontrolled operation, reducing operational risks, and improving safety and reliability.

[0028] The present invention has been described in detail above. The above description is only a preferred embodiment of the present invention and should not be construed as limiting the scope of the present invention. All equivalent changes and modifications made in accordance with the scope of this application should still fall within the scope of the present invention.

Claims

1. A valve switch device for ease of operation comprising a valve, characterised in that: The valve is provided with a flange seat (8) and a protective frame (5); the flange seat (8) is provided with a ferrule; a rotating handwheel is inserted into the ferrule; the rotating handwheel includes a handwheel disc (2), the handwheel disc (2) is connected to a drive shaft (3); the drive shaft (3) is connected to a drive block (7), the drive block (7) is provided with a limit key (12); the ferrule is provided with a keyway (9), the limit key (12) cooperates with the keyway (9); the flange seat (8) is provided with a protective frame (5), the protective frame (5) is provided with a locking chain (6).

2. The valve switch device of claim 1, wherein: The handwheel (2) includes a handwheel outer circle, which is connected to the transmission shaft (3) via a connecting rod (11).

3. The easy-to-operate valve switching device according to claim 2, characterized in that: A reinforcing rib (4) is provided between the outer circle of the handwheel and the transmission shaft (3); the reinforcing rib (4) is inclined.

4. The easy-to-operate valve switching device according to claim 1, characterized in that: The locking chain (6) includes a hook and an elastic chain; one end of the elastic chain is connected to the hook, and the other end is connected to a fixing sleeve, which is connected to the protective frame (5).

5. The easy-to-operate valve switching device according to claim 1, characterized in that: The drive block (7) is provided with limit keys (12) on both sides; the number of keyways (9) is greater than the number of limit keys (12), and the keyways (9) are arranged symmetrically in pairs.

6. The easy-to-operate valve switching device according to claim 3, characterized in that: The outer surface of the handwheel is provided with anti-slip texture (10).

7. The easy-to-operate valve switching device according to claim 6, characterized in that: The handwheel has a handle (1) on its outer circumference, and the handle (1) is pivotally connected to the handwheel disc (2).

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