Retaining device for kingston valve

Abstract

The utility model relates to the field of kingston valve operation tools, in particular to a retaining device for a kingston valve. Comprising a body, a ratchet wheel, a ratchet wheel blocking cover and ratchet teeth, the ratchet wheel is of an inner polygon structure, teeth are arranged on the outer ring of the ratchet wheel, the ratchet wheel is arranged in the body and limited through the ratchet wheel blocking cover, the ratchet wheel blocking cover is fixedly connected to the body through a bolt, and the ratchet wheel can rotate in the body. The retaining device special for the kingston valve is combined with a ratchet wrench for use, when the kingston valve is opened or closed, the wrench handle cannot rebound in the reverse direction, and the safety risk and hidden danger of hurting people due to rebound are overcome.

Description

Technical Field

[0001] This utility model relates to the field of tools for operating sea valves, and in particular to a backstop device for sea valves. Background Technology

[0002] A sea valve is a valve that draws seawater in from outside the ship's hull; also known as a sea valve box or seabed valve, it is part of the ship's seawater system. It can be opened or closed manually or hydraulically. A sea valve ratchet wrench is a specialized tool used for routine manual operation or in emergency manual operation in case of hydraulic failure. Due to the special structure of the sea valve, the ratchet wrench must be repeatedly pushed to complete one opening or closing operation. When manually opening or closing the sea valve, the valve stem will spring back with the wrench's return stroke due to the hydraulic press, and the force of this springback is considerable. During operation, the ratchet wrench is quickly returned to a speed greater than the valve stem's springback speed before being quickly pushed back to overcome this. This requires the operator to possess certain skills and strength; otherwise, there is a safety hazard and risk of injury from the ratchet wrench handle springing back. Summary of the Invention

[0003] In view of the deficiencies in the prior art, the main objective of this utility model is to provide a backflow prevention device for a sea valve, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A backstop device for a sea valve includes: a body, a ratchet, a ratchet cover, and ratchet teeth. The ratchet has an internal polygonal structure, with teeth on its outer ring. The ratchet is housed within the body and limited by the ratchet cover, which is bolted to the body. The ratchet can rotate within the body. A ratchet tooth groove is formed within the body, and the ratchet teeth are positioned within this groove and secured with a pin. The ratchet teeth can swing within the groove to adjust the ratchet's clockwise or counterclockwise rotation. A hole is formed at the bottom of the ratchet tooth groove, into which a steel ball and a spring are placed and secured with a locking screw. Two positioning holes are provided on both sides of the body for fixing it to the sea valve. Further, the ratchet has an internal 12-angle structure.

[0006] Compared with the prior art, this utility model provides a backstop device for a sea valve. The beneficial effect is that the backstop device for the sea valve is used in combination with a ratchet wrench. When the sea valve is opened or closed, the wrench handle cannot spring back in the opposite direction, thus overcoming the safety risks and hidden dangers of springback injury. Attached Figure Description

[0007] Figure 1 This is an exploded view of an embodiment of the present invention;

[0008] Figure 2 This is a schematic diagram of the structure of an embodiment of the present utility model;

[0009] Figure 3 This is a perspective structural diagram of an embodiment of the present utility model;

[0010] Figure 4 This is a schematic diagram of the main body structure of an embodiment of the present utility model;

[0011] Figure 5 This is a schematic diagram of the ratchet structure according to an embodiment of the present invention;

[0012] Figure 6 This is a schematic diagram of the ratchet structure according to an embodiment of the present invention;

[0013] In the diagram: 1-body, 2-ratchet, 3-ratchet cover, 4-bolt, 5-ratchet tooth, 6-fixing pin, 7-steel ball, 8-spring, 9-locking screw, 10-positioning hole, 11-ratchet groove. Detailed Implementation

[0014] 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.

[0015] Example:

[0016] like Figures 1-4The diagram shows a backstop device for a sea valve, comprising: a body (1), a ratchet (2), a ratchet cover (3), and ratchet teeth (5). The ratchet (2) has an inner polygonal structure, and teeth are provided on the outer ring of the ratchet (2). The ratchet (2) is disposed inside the body (1) and is limited by the ratchet cover (3). The ratchet cover (3) is fixedly connected to the body (1) by bolts (4). The ratchet (2) can rotate inside the body (1). The body (1) has an opening... A ratchet groove (11) is provided, and the ratchet (5) is set in the ratchet groove (11) and fixed with a fixing pin (6). The ratchet (5) can swing in the ratchet groove (11) to adjust the ratchet (2) to rotate clockwise or counterclockwise. The bottom of the ratchet groove (11) has a hole, in which a steel ball (7) and a spring (8) are provided and fixed with a locking screw (9). By setting the steel ball (7), the ratchet (5) can be limited so that the ratchet (5) cannot swing left and right at will. Two positioning holes (10) are provided on both sides of the body (1) for fixing to the sea valve. The inner diameter of the positioning hole (10) is slightly larger than the outer diameter of the positioning pins at both ends of the sea valve.

[0017] When using this anti-reverse device, it is used in conjunction with the ratchet wrench of the sea valve. The two positioning holes of the anti-reverse device are inserted into the positioning pin of the sea valve. If the valve column of the sea valve rotates clockwise, the ratchet (5) is adjusted to restrict the ratchet (2) from rotating counterclockwise, thus preventing the counterclockwise return of the valve column of the sea valve and preventing the possibility of injury from the return of the handle of the ratchet wrench of the sea valve.

[0018] Specifically, such as Figure 5 As shown, the ratchet (2) has an internal 12-angle structure. The internal 12-angle structure makes it easier to insert the anti-reverse device into the valve stem of the sea valve.

Claims

1. A backflow prevention device for a sea valve, characterized in that, include: The body (1), ratchet (2), ratchet cover (3), and ratchet tooth (5) are provided. The ratchet (2) has an inner polygonal structure and teeth on its outer ring. The ratchet (2) is located inside the body (1) and is limited by the ratchet cover (3). The ratchet cover (3) is fixedly connected to the body (1) with bolts (4). The ratchet (2) can rotate inside the body (1). The body (1) has a ratchet tooth groove (11). The ratchet tooth (5) is located in the ratchet tooth groove (11) and is fixed with a fixing pin (6). The ratchet tooth (5) can swing in the ratchet tooth groove (11) to adjust the ratchet (2) to rotate clockwise or counterclockwise. The bottom of the ratchet tooth groove (11) has a hole with a steel ball (7) and a spring (8) inside, which is fixed with a locking screw (9). The body (1) has two positioning holes (10) on both sides for fixing to the sea valve.

2. The anti-reverse device for a sea valve according to claim 1, characterized in that: The ratchet (2) has an inner 12-angle structure.

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