Rotary locking gate valve

Abstract

The utility model discloses a rotary locking gate valve which comprises a valve body and a valve cover located on the valve body, a through hole is formed in the top end of the valve cover, a rotating rod extending to the outside is arranged on the through hole, a rotating handle is arranged at the top end of the rotating rod, and a connecting assembly matched with the rotating rod is arranged in the through hole. The gate valve has the beneficial effects that through the design that the connecting assembly is matched with the valve cover and the rotating rod, the rotating rod can be movably clamped on the valve cover, the rotating rod can be taken down from the valve cover only through the connecting assembly when the rotating rod is replaced, replacement of the rotating rod is facilitated, meanwhile, one rotating rod can be conveniently matched with a plurality of gate valves, and resource waste is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of gate valves, in particular to a rotary locking gate valve. Background Art

[0002] The gate valve is opened and closed by the gate, and the movement direction of the gate is perpendicular to the direction of the fluid. The gate valve can only be fully opened and fully closed, and cannot be used for regulation and throttling. The gate has two sealing surfaces. The two sealing surfaces of the most commonly used mode gate valve form a wedge. The wedge angle varies with the valve parameters, usually 5°, and 2.52° when the medium temperature is not high. The gate of the wedge gate valve can be made into a whole, called a rigid gate, or it can be made into a gate that can produce a slight deformation to improve its process and compensate for the deviation of the sealing surface angle during the processing. This gate is called an elastic gate.

[0003] In existing gate valves, the rotating handle is generally fixed to the rotating rod, which makes it inconvenient to replace the rotating handle. Multiple gate valves need to be equipped with multiple rotating handles, resulting in a waste of resources. In addition, the anti-corrosion effect of the gate valve is poor, which can easily cause corrosion of the outer wall of the gate valve, affecting the use of the gate valve.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Utility Model Content

[0005] In view of the problems in the related technology, the utility model proposes a rotary locking gate valve to overcome the above technical problems existing in the existing related technology.

[0006] To this end, the specific technical solutions adopted by the utility model are as follows:

[0007] A rotary locking gate valve comprises a valve body and a valve cover located on the valve body, wherein a through hole is opened at the top end of the valve cover, a rotating rod extending outward is arranged on the through hole, a rotating handle is arranged at the top end of the rotating rod, and a connecting component matching the rotating rod is arranged in the through hole.

[0008] Preferably, the connecting assembly includes a connecting column located at the bottom end of the rotating rod, symmetrically arranged side holes are opened on both sides of the connecting column, a vertically arranged limit piece is provided in the side hole, the limit piece is connected to the connecting column through a movable shaft, and limit grooves matching the limit piece are opened on both sides of the through hole.

[0009] Preferably, the two groups of limit members are provided with oblique grooves away from each other, and the two groups of limit members are provided with grooves on the sides close to each other, and a spring rod connected to the two groups of grooves is transversely provided in the connecting column.

[0010] Preferably, a guide cylinder is provided in the middle of the connecting column and between the two groups of the limiting members, and a connecting rope is provided on the top of the rotating handle which passes through the rotating rod and the guide cylinder and is connected to the limiting members.

[0011] Preferably, a pull ring is provided at the top end of the connecting rope, and a cavity for movement of the connecting rope is provided on the connecting column.

[0012] Preferably, the rotating handle is provided with a protective cover matching with the rotating handle.

[0013] The beneficial effects of the utility model are as follows: through the matching design of the connecting component with the valve cover and the rotating rod, the rotating rod can be movably engaged on the valve cover. When replacing the rotating rod, the rotating rod can be removed from the valve cover only through the connecting component, which is convenient for replacing the rotating rod. At the same time, it is convenient for one rotating rod to adapt to multiple gate valves, avoiding waste of resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a structural schematic diagram of a rotary locking gate valve according to an embodiment of the utility model;

[0016] Figure 2 It is a structural schematic diagram of a connecting assembly in a rotary locking gate valve according to an embodiment of the utility model;

[0017] Figure 3 It is a side view of a limit groove in a rotary locking gate valve according to an embodiment of the utility model.

[0018] In the figure:

[0019] 1. Valve body; 2. Valve cover; 3. Through hole; 4. Turn rod; 5. Connecting column; 6. Side hole; 7. Limiting piece; 8. Movable shaft; 9. Limiting groove; 10. Inclined groove; 11. Groove; 12. Spring rod; 13. Guide cylinder; 14. Connecting rope; 15. Pull ring; 16. Rotating handle. Implementation

[0020] To further illustrate each embodiment, the present invention provides drawings, which are part of the disclosure of the present invention and are mainly used to illustrate the embodiments. They can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, ordinary technicians in the field should be able to understand other possible implementation methods and advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are generally used to represent similar components.

[0021] According to an embodiment of the utility model, a rotary locking gate valve is provided. Example

[0022] like Figure 1-3 As shown, the rotary locking gate valve according to the embodiment of the utility model includes a valve body 1 and a valve cover 2 located on the valve body 1, a through hole 3 is opened at the top end of the valve cover 2, a rotating rod 4 extending to the outside is provided on the through hole 3, a rotating handle 16 is provided at the top end of the rotating rod 4, and a connecting component matching the rotating rod 4 is provided in the through hole 3. Example

[0023] like Figure 1-3 As shown, the connecting assembly includes a connecting column 5 located at the bottom end of the rotating rod 4, and symmetrically arranged side holes 6 are opened on both sides of the connecting column 5. A vertically arranged limit piece 7 is arranged in the side hole 6, and the limit piece 7 is connected to the connecting column 5 through a movable shaft 8. Limit grooves 9 matching the limit pieces 7 are opened on both sides of the through hole 3, and oblique grooves 10 are opened on the two groups of the limit pieces 7 away from each other, and grooves 11 are opened on the sides where the two groups of the limit pieces 7 are close to each other, and a spring rod 12 connected to the two groups of the grooves 11 is horizontally arranged in the connecting column 5. Example

[0024] like Figure 1-3 As shown, a guide cylinder 13 is provided in the middle part of the connecting column 5 and between the two groups of the limiting members 7, a connecting rope 14 is provided at the top end of the rotating handle 16, which passes through the rotating rod 4 and the guide cylinder 13 and is connected to the limiting member 7, a pull ring 15 is provided at the top end of the connecting rope 14, a cavity for the connecting rope 14 to move is provided on the connecting column 5, and a protective cover matching it is provided on the rotating handle 16.

[0025] In order to facilitate understanding of the above technical solution of the present invention, the working principle or operation method of the present invention in the actual process is described in detail below.

[0026] When the valve cover 2 and the rotating rod 4 are connected, the valve cover 2 and the rotating rod 4 are connected, and the valve cover 2 and the rotating rod 4 are connected.

[0027] To sum up, with the aid of the above-mentioned technical scheme of the utility model, the turning rod 4 can be movably engaged on the valve cover 2 through the matching design of the connecting component with the valve cover 2 and the turning rod 4. When replacing the turning rod 4, the turning rod 4 can be removed from the valve cover 2 only through the connecting component, which is convenient for replacing the turning rod 4. At the same time, it is convenient for one turning rod 4 to adapt to multiple gate valves, avoiding waste of resources.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A rotary locking gate valve, characterized in that: The invention comprises a valve body (1) and a valve cover (2) located on the valve body (1), wherein a through hole (3) is provided at the top end of the valve cover (2), a rotating rod (4) extending outward is provided on the through hole (3), a rotating handle (16) is provided at the top end of the rotating rod (4), a connecting component matching the rotating rod (4) is provided in the through hole (3), the connecting component comprises a connecting column (5) located at the bottom end of the rotating rod (4), side holes (6) arranged symmetrically are provided on both sides of the connecting column (5), and the side holes (6) are provided on the two sides of the connecting column (5). (6) is provided with a vertically arranged limit piece (7), the limit piece (7) is connected to the connecting column (5) through a movable shaft (8), limit grooves (9) matching the limit piece (7) are provided on both sides of the through hole (3), two groups of the limit pieces (7) are provided with oblique grooves (10) away from each other, and two groups of the limit pieces (7) are provided with grooves (11) on the sides close to each other, and a spring rod (12) connected to the two groups of the grooves (11) is provided transversely in the connecting column (5).

2. A rotary locking gate valve according to claim 1, characterized in that: A guide cylinder (13) is provided in the middle of the connecting column (5) and between the two groups of the limiting members (7), and a connecting rope (14) is provided at the top end of the rotating handle (16) and passes through the rotating rod (4) and the guide cylinder (13) and is connected to the limiting member (7).

3. A rotary locking gate valve according to claim 2, characterized in that: A pull ring (15) is provided at the top end of the connecting rope (14), and a cavity for the connecting rope (14) to move is provided on the connecting column (5).

4. A rotary locking gate valve according to claim 1, characterized in that: The rotating handle (16) is sleeved with a protective sleeve that matches it.

Images