A locking tag device for a manual directional valve

Abstract

This utility model provides a locking tag device for a manual directional valve, relating to the field of manual directional valve technology. It includes a directional valve body and a support plate fixedly mounted on the directional valve body. Three operating levers are rotatably connected to the directional valve body. Through holes are provided on the support plate, and a handle passes through these holes and connects to a sliding plate. The handle is used to move the sliding plate so that the stop holes on the support plate and the sliding plate coincide or separate. This utility model has a reasonable and simple structure, and is quick and accurate to operate. When operating the manual directional valve, moving the handle moves the sliding plate so that the sliding plate and the stop holes on the support plate are misaligned, thereby locking the operating levers. Therefore, this locking tag device improves upon the original operating handle device, effectively eliminating safety hazards during operation, avoiding misoperation during use, and improving operational safety.

Description

Technical Field

[0001] This utility model relates to the field of manual directional valve technology, and more specifically, to a locking tag device for a manual directional valve. Background Technology

[0002] The currently used manual directional valves do not have a locking device. In the use of this old type, there is no valve lock in the middle position of the manual directional valve, which makes it very easy to misoperate and increases the safety hazards during operation. Utility Model Content

[0003] The purpose of this utility model is to provide a locking tag device for a manual directional valve, so as to solve one or more problems mentioned in the background art.

[0004] To achieve the above objectives, this application provides a locking tag device for a manual directional valve, including a directional valve body and a support plate fixedly installed on the directional valve body. The directional valve body is rotatably connected to three operating rods. The support plate is provided with through holes, and a handle passes through the through holes to connect to a sliding plate. The handle is used to move the sliding plate so that the gear holes on the support plate and the sliding plate coincide or separate and misalign.

[0005] As a preferred and feasible approach, a fixing plate is welded to the bottom of the support plate, and the sliding plate is located between the support plate and the fixing plate.

[0006] As a preferred and feasible approach, the shift holes of both the support plate and the slide plate are "king" shaped holes, with each operating lever moving in its corresponding hole. The "king" shaped hole includes three vertical holes penetrating the support plate or the slide plate, and two horizontal holes connecting each vertical hole in pairs.

[0007] As a preferred feasible method, when the three vertical holes on the support plate and the slide plate coincide, the operating lever on the reversing valve can be moved up and down; when the three vertical holes on the support plate and the slide plate are misaligned, the operating lever can only be stuck in the horizontal hole and cannot move up and down.

[0008] As a preferred feasible method, the support plate is provided with a rotary lock on the side away from the handlebar. The rotary lock is used to lock the slide plate when the shift holes on the support plate and the slide plate are separated and misaligned.

[0009] As a preferred and feasible approach, an opening is provided on the vertical hole of the slide plate near the rotary lock, so that two hooks are formed at the vertical hole of the slide plate.

[0010] As a preferred implementation, the rotary lock includes a latch that controls the rotary lock to rotate 90 degrees when the stop holes on the support plate and the slide plate are separated and misaligned, so that the latch of the rotary lock is placed inside the hook.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] This utility model has a reasonable and simple structure, and is quick and accurate to operate. When operating the manual reversing valve, moving the handle moves the sliding plate so that the sliding plate is misaligned with the stop hole of the support plate, thereby locking the operating lever. Therefore, this locking tag device improves the original operating handle device, effectively eliminates safety hazards in the operation process, avoids misoperation during use, and improves the safety of operation. Attached Figure Description

[0013] Figure 1 A side view of a locking tag device for a manual directional valve provided by this utility model;

[0014] Figure 2 A cross-sectional view of a locking tag device for a manual directional valve provided by this utility model;

[0015] Figure 3 A top view of a partial structure of a locking tag device for a manual directional valve provided by this utility model;

[0016] Figure 4 This is a front view schematic diagram of a locking tag device for a manual directional valve provided by this utility model. Detailed Implementation

[0017] 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.

[0018] It should be noted that all uses of "first", "second", "third" and "fourth" in the embodiments of this utility model are for the purpose of distinguishing two entities or parameters with the same name but different names. It is clear that "first", "second", "third" and "fourth" are only for the convenience of expression and should not be construed as limiting the embodiments of this utility model. Subsequent embodiments will not explain this in detail.

[0019] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "lateral", "longitudinal", "front", "rear", "left", "right", "upper", "lower", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present utility model.

[0020] As Figure 1-4 shown, the present utility model provides a locking and tagging device for a manual reversing valve, including a reversing valve body 5 and a support plate 3 fixedly installed on the reversing valve body 5. The reversing valve body 5 is rotatably connected to three operating rods 1. A through hole is provided on the support plate 3, and a handle 7 passes through the through hole and is connected to a sliding plate 6. This through hole is an oval hole. The handle can only move the sliding plate left and right within the range of this oval hole. Specifically, the handle passes through the oval hole on the support plate and is fixedly connected to the sliding plate by threads. The handle 7 is used to move the sliding plate 6 to make the gear holes on the support plate 3 and the sliding plate 6 coincide or be separated and misaligned. A fixing plate 4 is welded below the support plate 3, and the sliding plate 6 is located between the support plate 3 and the fixing plate 4. Thus, the sliding plate can be fixed by the fixing plate.

[0021] It should be noted that the gear holes of the support plate 3 and the sliding plate 6 are both "king" - shaped holes. Each operating rod 1 is respectively located in the corresponding gear hole for movement. The "king" - shaped hole includes three vertical holes 8 penetrating the support plate or the sliding plate and two horizontal cross - holes 9 connecting every two of the vertical holes 8. When the three vertical holes 8 on the support plate 3 and the sliding plate 6 coincide, the operating rod 1 on the reversing valve can be moved up and down; when the three vertical holes 8 on the support plate 3 and the sliding plate 6 are misaligned, the operating rod 1 can only be stuck in the horizontal cross - hole 9 and cannot move up and down.

[0022] It should be noted that a rotary lock 10 is provided on the side surface of the support plate 3 far from the handle 7. The rotary lock 10 is used to lock the sliding plate 6 when the gear holes on the support plate 3 and the sliding plate 6 are separated and misaligned. An opening is provided on the vertical hole of the sliding plate near the rotary lock 10, so that two hook parts 11 are formed at the vertical hole of the sliding plate. The rotary lock 10 includes a lock tongue 12. When the gear holes on the support plate 3 and the sliding plate 6 are separated and misaligned, the rotary lock is controlled to rotate 90 degrees, so that the lock tongue 12 of the rotary lock is placed inside the hook part 11. It should be noted that when the key is inserted and rotated, it can rotate 90°. The key rotates 90° clockwise from the locked position to the unlocked position.

[0023] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A lockout tagout device for a manual diverter valve, comprising: It includes a reversing valve body (5) and a support plate (3) fixedly installed on the reversing valve body (5). The reversing valve body (5) is rotatably connected to three operating rods (1). The support plate (3) is provided with a through hole. The handle (7) passes through the through hole and connects to the slide plate (6). The handle (7) is used to move the slide plate (6) so that the gear holes on the support plate (3) and the slide plate (6) coincide or are misaligned.

2. The locking tag device for a manual directional valve according to claim 1, characterized in that: A fixing plate (4) is welded to the bottom of the support plate (3), and the sliding plate (6) is located between the support plate (3) and the fixing plate (4).

3. A locking tag device for a manual directional valve according to claim 2, characterized in that: The gear holes of the support plate (3) and the slide plate (6) are all "king" shaped holes. Each of the operating levers (1) moves in the corresponding gear hole. The "king" shaped hole includes three vertical holes (8) that pass through the support plate or the slide plate and two horizontal holes (9) that connect each vertical hole (8) in pairs.

4. A locking tag device for a manual directional valve according to claim 3, characterized in that: When the three vertical holes (8) on the support plate (3) and the slide plate (6) coincide, the operating lever (1) on the reversing valve can move up and down; when the three vertical holes (8) on the support plate (3) and the slide plate (6) are misaligned, the operating lever (1) can only be stuck in the horizontal hole (9) and cannot move up and down.

5. A locking tag device for a manual directional valve according to claim 4, characterized in that: The support plate (3) is provided with a rotary lock (10) on the side away from the handle (7). The rotary lock (10) is used to lock the slide plate (6) when the gear holes on the support plate (3) and the slide plate (6) are separated and misaligned.

6. A locking tag device for a manual directional valve according to claim 5, characterized in that: An opening is provided on the vertical hole of the slide plate near the rotary lock (10), so that two hooks (11) are formed at the vertical hole of the slide plate.

7. A locking tag device for a manual directional valve according to claim 6, characterized in that: The rotary lock (10) includes a latch (12). When the stop holes on the support plate (3) and the slide plate (6) are separated and misaligned, the rotary lock is controlled to rotate 90 degrees so that the latch (12) of the rotary lock is placed inside the hook (11).

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