Selector valve hand wheel locking device

Abstract

The utility model discloses a selector valve hand wheel locking device which comprises an installation box, a selector valve body is fixedly connected to the rear side of the installation box, a wheel handle is movably connected to the front side of the selector valve body, a clamping buckle groove is formed in the bottom of the wheel handle, a fixing clamping plate is clamped in the clamping buckle groove, and a clamping groove is formed in the fixing clamping plate. And the fixed clamping plate is movably connected to the interior of the mounting box. The pull rope is pulled downwards, the pull rope drives the left side of the fixing clamping plate to move downwards in an arc shape, the fixing clamping plate stretches the tension spring, the fixing clamping plate retreats from the interior of the clamping buckle groove, the clamping buckle groove and the wheel handle lose the fixing effect, at the moment, a user can rotate the wheel handle to open the selector valve body, and the selector valve has the advantage of preventing mistaken opening; the control wheel handle of the selector valve is locked and clamped, when a person touches the wheel handle by mistake, the wheel handle cannot rotate, the selector valve can work stably in the using process, and the using stability of the selector valve is improved.

Description

Technical Field

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

[0002] Selector valves are typically used in gas extinguishing systems, such as heptafluoropropane and carbon dioxide extinguishing systems. Their function is to select and open the valves of the appropriate protected area when multiple protected areas share a single extinguishing system, so that the extinguishing agent is accurately delivered to the protected area where a fire has occurred, without being accidentally sprayed into other protected areas where no fire has occurred, thereby achieving precise fire extinguishing protection for a specific protected area.

[0003] In the use of gas fire extinguishing equipment, selector valves are required. The control handle of traditional selector valves is easy to pull, which can lead to accidental activation by personnel, causing the selector valve to open accidentally. When the selector valve is opened accidentally, it will affect the entire gas fire extinguishing equipment system, reducing the stability of the selector valve's operation. Utility Model Content

[0004] To address the problems mentioned in the background art, the purpose of this utility model is to provide a locking device for the handwheel of a selector valve, which has the advantage of preventing accidental opening. This solves the problem that the control handle of the selector valve is easily pulled, which can lead to accidental activation by personnel during operation, causing the selector valve to open accidentally. When the selector valve is opened accidentally, it will affect the entire gas fire extinguishing equipment system and reduce the stability of the selector valve.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a selector valve handwheel locking device, comprising a mounting box, a selector valve body fixedly connected to the rear side of the mounting box, a handle movably connected to the front side of the selector valve body, a locking groove being provided at the bottom of the handle, a fixing plate being engaged inside the locking groove, the fixing plate being movably connected inside the mounting box, and a control mechanism being fixedly connected to the surface of the fixing plate.

[0006] As a preferred embodiment of this utility model, the control mechanism includes a tension spring, which is fixedly connected to the left side of the top of the fixing plate. A mounting plate is fixedly connected to the top of the tension spring, and the surface of the mounting plate is fixedly connected to the inner wall of the mounting box. A pull rope is fixedly connected to the left side of the bottom of the fixing plate, and the bottom of the pull rope extends through to the bottom of the mounting box.

[0007] As a preferred embodiment of this invention, a pull ring is fixedly connected to the bottom of the pull rope, and the pull ring is located at the bottom of the mounting box.

[0008] As a preferred embodiment of this invention, the surface of the pull rope is covered with a protective sleeve, and the surface of the protective sleeve is fixedly connected to the inner wall of the mounting box.

[0009] As a preferred embodiment of this invention, a reinforcing sleeve is fixedly connected to the top of the pull rope surface, and the top of the reinforcing sleeve is fixedly connected to the bottom of the fixing plate.

[0010] As a preferred embodiment of this utility model, a reinforcing rib is fixedly connected to the left side of the top of the mounting plate, and the surface of the reinforcing rib is fixedly connected to the inner wall of the mounting box.

[0011] As a preferred embodiment of this invention, a protective plate is fixedly connected to the front side of the mounting box, and the protective plate is located in front of the fixing plate.

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

[0013] 1. This utility model allows the user to pull the pull rope downwards, causing the left side of the fixed plate to move downwards in an arc shape. The fixed plate stretches the tension spring and disengages from the locking groove. The locking groove and the wheel handle lose their fixing effect. At this time, the user can rotate the wheel handle to open the selector valve body. This has the advantage of preventing accidental opening. The control wheel handle of the selector valve is locked and clamped. If the user accidentally touches the wheel handle, the wheel handle will not rotate, thus improving the stability of the selector valve.

[0014] 2. By setting up a control mechanism, this utility model can fix and control the wheel handle, preventing the wheel handle from being easily moved by external factors, which could lead to misoperation of the wheel handle and improve the stability of the wheel handle in use.

[0015] 3. By setting a pull ring, this utility model makes it easy for users to pull the rope to move, avoiding the difficulty in squeezing the rope during the movement process, which would make the rope difficult to pull and improve the control efficiency of the rope. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model.

[0017] Figure 2 This is a three-dimensional cross-sectional view of the mounting box of this utility model.

[0018] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle.

[0019] Figure 4 This utility model Figure 2 Enlarged structural diagram at point B in the middle.

[0020] In the diagram: 1. Mounting box; 2. Selector valve body; 3. Handle; 4. Clamping slot; 5. Fixing plate; 6. Control mechanism; 61. Tension spring; 62. Mounting plate; 63. Pull rope; 7. Pull ring; 8. Protective sleeve; 9. Reinforcing sleeve; 10. Reinforcing rib; 11. Protective plate. Detailed Implementation

[0021] 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.

[0022] like Figures 1 to 4 As shown, the present invention provides a locking device for a selector valve handwheel, including a mounting box 1. A selector valve body 2 is fixedly connected to the rear side of the mounting box 1. A handle 3 is movably connected to the front side of the selector valve body 2. A locking groove 4 is provided at the bottom of the handle 3. A fixing plate 5 is locked inside the locking groove 4. The fixing plate 5 is movably connected inside the mounting box 1. A control mechanism 6 is fixedly connected to the surface of the fixing plate 5.

[0023] refer to Figure 3 The control mechanism 6 includes a tension spring 61, which is fixedly connected to the left side of the top of the fixed plate 5. The top of the tension spring 61 is fixedly connected to a mounting plate 62, and the surface of the mounting plate 62 is fixedly connected to the inner wall of the mounting box 1. A pull rope 63 is fixedly connected to the left side of the bottom of the fixed plate 5, and the bottom of the pull rope 63 extends through to the bottom of the mounting box 1.

[0024] As a technical optimization of this utility model, by setting the control mechanism 6, the wheel handle 3 can be fixedly controlled, avoiding the wheel handle 3 from being easily driven by external factors, which would lead to the wheel handle 3 being misoperated, thus improving the stability of the wheel handle 3 in use.

[0025] refer to Figure 3 A pull ring 7 is fixedly connected to the bottom of the pull rope 63, and the pull ring 7 is located at the bottom of the mounting box 1.

[0026] As a technical optimization of this utility model, by setting the pull ring 7, it is easier for the user to pull the pull rope 63 to move, avoiding the difficulty in squeezing the pull rope 63 during the process of moving it, which would make the pull rope 63 difficult to pull, thus improving the control efficiency of the pull rope 63.

[0027] refer to Figure 3 A protective sleeve 8 is fitted on the surface of the pull rope 63, and the surface of the protective sleeve 8 is fixedly connected to the inner wall of the mounting box 1.

[0028] As a technical optimization of this utility model, by setting a protective sleeve 8, the pull rope 63 can be isolated from contact with the mounting box 1, avoiding friction between the pull rope 63 and the surface of the mounting box 1 when the pull rope 63 moves, which would cause the surface of the pull rope 63 to be worn, thus improving the installation safety of the pull rope 63.

[0029] refer to Figure 3 A reinforcing sleeve 9 is fixedly connected to the top of the surface of the pull rope 63, and the top of the reinforcing sleeve 9 is fixedly connected to the bottom of the fixing plate 5.

[0030] As a technical optimization of this utility model, by setting the reinforcing sleeve 9, the connection between the pull rope 63 and the fixed plate 5 can be reinforced, so as to prevent the pull rope 63 and the fixed plate 5 from breaking during use, prevent the pull rope 63 and the fixed plate 5 from not being able to cooperate, and improve the use effect of the pull rope 63 and the fixed plate 5.

[0031] refer to Figure 3 A reinforcing rib 10 is fixedly connected to the top left side of the mounting plate 62, and the surface of the reinforcing rib 10 is fixedly connected to the inner wall of the mounting box 1.

[0032] As a technical optimization of this utility model, by setting the reinforcing rib 10, the connection between the mounting plate 62 and the mounting box 1 can be reinforced, preventing the mounting plate 62 and the mounting box 1 from breaking during use, preventing the mounting plate 62 and the mounting box 1 from not being able to fit together, and improving the use effect of the mounting plate 62 and the mounting box 1.

[0033] refer to Figure 1 A protective plate 11 is fixedly connected to the front side of the mounting box 1, and the protective plate 11 is located on the front side of the fixing plate 5.

[0034] As a technical optimization of this utility model, by setting the protective plate 11, the fixing plate 5 can be shielded and protected, preventing foreign objects from contacting the fixing plate 5 and causing the fixing plate 5 to be jammed, thus improving the safety of the fixing plate 5.

[0035] The working principle and usage process of this utility model are as follows: When in use, the wheel handle 3 of the selector valve body 2 is locked in the figure. When it is necessary to rotate the wheel handle 3, pull the pull rope 63 downward. The pull rope 63 drives the left side of the fixing plate 5 to move downward in an arc shape. The fixing plate 5 stretches the tension spring 61, and the fixing plate 5 exits the interior of the locking groove 4. The locking groove 4 and the wheel handle 3 lose their fixing effect. At this time, the user can rotate the wheel handle 3 to open the selector valve body 2.

[0036] In summary, this selector valve handwheel locking device, through the coordinated use of the mounting box 1, selector valve body 2, handle 3, locking groove 4, fixing plate 5, and control mechanism 6, solves the problem that the selector valve's control handle is easily pulled, leading to accidental activation by personnel and causing the selector valve to open unintentionally. When the selector valve is opened unintentionally, it affects the entire gas fire extinguishing system, reducing the stability of the selector valve's operation.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] 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 locking device for a selector valve handwheel, comprising a mounting box (1), characterized in that: The rear side of the mounting box (1) is fixedly connected to the selector valve body (2), and the front side of the selector valve body (2) is movably connected to the handle (3). The bottom of the handle (3) is provided with a locking groove (4). The inside of the locking groove (4) is locked with a fixing plate (5). The fixing plate (5) is movably connected to the inside of the mounting box (1). The surface of the fixing plate (5) is fixedly connected to a control mechanism (6). The control mechanism (6) includes a tension spring (61). The tension spring (61) is fixedly connected to the left side of the top of the fixing plate (5). The top of the tension spring (61) is fixedly connected to a mounting plate (62). The surface of the mounting plate (62) is fixedly connected to the inner wall of the mounting box (1). The left side of the bottom of the fixing plate (5) is fixedly connected to a pull rope (63). The bottom of the pull rope (63) extends through to the bottom of the mounting box (1).

2. The selector valve handwheel locking device according to claim 1, characterized in that: The bottom of the pull rope (63) is fixedly connected to a pull ring (7), which is located at the bottom of the mounting box (1).

3. The selector valve handwheel locking device according to claim 1, characterized in that: The surface of the pull rope (63) is covered with a protective sleeve (8), and the surface of the protective sleeve (8) is fixedly connected to the inner wall of the mounting box (1).

4. The selector valve handwheel locking device according to claim 1, characterized in that: A reinforcing sleeve (9) is fixedly connected to the top of the surface of the pull rope (63), and the top of the reinforcing sleeve (9) is fixedly connected to the bottom of the fixing plate (5).

5. The locking device for a selector valve handwheel according to claim 1, characterized in that: A reinforcing rib (10) is fixedly connected to the left side of the top of the mounting plate (62), and the surface of the reinforcing rib (10) is fixedly connected to the inner wall of the mounting box (1).

6. The selector valve handwheel locking device according to claim 1, characterized in that: A protective plate (11) is fixedly connected to the front side of the mounting box (1), and the protective plate (11) is located on the front side of the fixing plate (5).

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