High-pressure-resistant safety plug for hydraulic valve

Abstract

The high-pressure-resistant safety plug for the hydraulic valve comprises a pipeline and a plug body, the plug body is arranged above the pipeline, external threads are arranged on the surface of the plug body, the plug body is in threaded connection with the pipeline through the external threads, a hexagonal hole is formed in the upper surface of the plug body in a penetrating mode, a hexagonal column is arranged at the position of the hexagonal hole, and the hexagonal column is connected with the pipeline through the external threads. A piston is arranged on the lower end face of the hexagonal prism, and a groove is formed in the side surface of the piston. According to the utility model, after the plug is mounted at the end part of the pipeline, the end part of the pipeline is preliminarily plugged by utilizing the thread structure, then high-pressure liquid in the pipeline can apply acting force to the piston in the plug to promote the piston to move towards one side, and the rotating seat can apply acting force to the clamping rod along with the movement of the piston; the clamping rod rotates around the hinge seat and is clamped on the surface of the pipeline, the plug is secondarily installed and fixed, stress generated by high pressure is shared for the threaded structure, and the situation that the sealing performance of the threaded structure is affected due to deformation of the threaded structure is avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to hydraulic valve technical field, concretely relates to a high pressure resistant safety plug for hydraulic valve. BACKGROUND

[0002] In the hydraulic valve structure, the plug is often used to block the oil way to prevent the hydraulic oil from losing, and the fixing mode of the plug has two kinds, one is screw fixing, and the other is steel wire retainer ring fixing.

[0003] The high pressure environment can produce pressure on the plug material of the screw structure, cause the material to deform or damage, further affect the sealing performance, thereby causing the hydraulic oil to leak, and unable to play the plugging effect.

[0004] For the problems in the related art, no effective solution has been proposed so far. CONTENT OF THE UTILITY MODEL

[0005] To solve the problems raised in the above, the utility model provides a high pressure resistant safety plug for hydraulic valve, thereby solving the problems in the above background art.

[0006] To achieve the problems raised in the above, the utility model adopts the specific technical scheme as follows:

[0007] A high pressure resistant safety plug for hydraulic valve, comprising a pipeline and a plug, the upper part of the pipeline is provided with the plug, the surface of the plug is provided with external threads, the plug is connected with the pipeline through the external threads, the upper surface of the plug is provided with a hexagonal hole, and a hexagonal column is arranged at the hexagonal hole, the lower end surface of the hexagonal column is provided with a piston, the side surface of the piston is provided with a groove, and a sealing ring is arranged at the groove, the upper end surface of the hexagonal column is fixed with a rotating seat, one side of the rotating seat is provided with a clamping rod, and the clamping rod is connected with the plug through a hinge seat.

[0008] Further, the piston is made of high-silicon aluminum alloy material, and the sealing ring is made of nylon material.

[0009] Further, the side surface of the clamping rod is provided with a strip-shaped hole, and a U-shaped rod is arranged at the strip-shaped hole, and the U-shaped rod is fixed to the side surface of the rotating seat.

[0010] Further, a sealing gasket is arranged between the pipeline and the plug.

[0011] Further, the inner side surface of the clamping rod is provided with anti-slip convex points.

[0012] Further, the upper surface of the rotating seat is provided with a hexagonal groove.

[0013] Compared with the prior art, the utility model provides a high pressure resistant safety plug for hydraulic valve, which has the following beneficial effects:

[0014] (1), the utility model discloses, after installing the plug in the end of pipeline, utilize the thread structure to the end of pipeline carries out the preliminary plugging, after high -pressure liquid in the pipeline will exert force to the piston in the plug, promote the piston to move to one side, and its rotary seat will along with the movement of piston, and exert force to the clamping rod, make the clamping rod rotate around the articulated seat, clamping in the pipeline surface, the secondary installation fixed for the thread structure to share the stress generated by high pressure, avoid the deformation of thread structure, influence its sealing performance.

[0015] (2), the utility model discloses a high silicon aluminum alloy material's piston and nylon material's sealing ring are all with the characteristics of corrosion -resistant and wear -resistant, thereby make the plug can use under the environment of high temperature and high pressure while ensuring the sealing performance, greatly improved the practicability of plug. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments, obviously, the drawings in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying creative labor, still can obtain other drawings according to these drawings.

[0017] Fig. 1 It is the structure schematic diagram of the high-pressure safety plug for hydraulic valve that the utility model proposes;

[0018] Fig. 2 It is the internal structure schematic diagram of the plug of the utility model;

[0019] Fig. 3 It is the overall structure schematic diagram of the rotary seat of the utility model.

[0020] In the drawing:

[0021] 1, pipeline;2, plug;3, external thread;4, sealing pad;5, articulated seat;6, clamping rod;7, anti -slip convex point;8, strip hole;9, type pole;10, rotary seat;11, hexagonal groove;12, hexagonal column;13, piston;14, sealing ring. DETAILED DESCRIPTION

[0022] In order to further illustrate each embodiment, the utility model provides the drawing, these drawings are part of the disclosure of the utility model, mainly used to illustrate the embodiment, and can cooperate the relevant description of the specification to explain the operating principle of the embodiment, cooperates to refer to these contents, and the ordinary skill in the art person should understand other possible implementation ways and the advantages of the utility model, the components in the drawing are not drawn according to scale, and similar component symbols are usually used to indicate similar components.

[0023] According to the embodiment of the utility model, a kind of high-pressure-resistant safety plug for hydraulic valve is provided.

[0024] The utility model is further illustrated by combining with the drawings and specific embodiment, as Figs. 1-3 As shown in the utility model embodiment, a kind of high-pressure-resistant safety plug for hydraulic valve, including pipeline 1 and plug 2, the top of pipeline 1 is provided with plug 2, and the surface of plug 2 is provided with external thread 3, and plug 2 is connected by external thread 3 with pipeline 1 thread, the upper surface of plug 2 is through and is provided with hexagonal hole, and hexagonal hole is provided with hexagonal column 12, the lower end surface of hexagonal column 12 is provided with piston 13, and the side surface of piston 13 is provided with recess, and recess is provided with sealing ring 14, the upper end surface of hexagonal column 12 is fixed with rotary seat 10, one side of rotary seat 10 is provided with clamping rod 6, and clamping rod 6 is connected with plug 2 by hinged seat 5.

[0025] In an embodiment, after installing plug 2 at the end of pipeline 1, the end of pipeline 1 is preliminarily blocked using threaded structure, and then high-pressure liquid in pipeline 1 will exert force on piston 13 in plug 2, prompting piston 13 to move to one side, and rotary seat 10 will exert force on clamping rod 6 along with the movement of piston 13, so that clamping rod 6 rotates around hinged seat 5 and is clamped to the surface of pipeline 1, for secondary installation and fixation of plug 2, to share the stress generated by high pressure with threaded structure and avoid deformation of threaded structure, thereby affecting its sealing performance.

[0026] Specifically, piston 13 is made of high-silicon aluminum alloy material, and sealing ring 14 is made of nylon material.

[0027] In an embodiment, piston 13 made of high-silicon aluminum alloy material and sealing ring 14 made of nylon material both have the characteristics of corrosion resistance and wear resistance, so that plug 2 can be used in high-temperature and high-pressure environments while ensuring sealing performance, greatly improving the practicality of plug 2.

[0028] Specifically, the side surface of clamping rod 6 is through and is provided with strip hole 8, and is provided with L-shaped rod 9 at strip hole 8, and L-shaped rod 9 is fixed to the side surface of rotary seat 10.

[0029] In an embodiment, when rotary seat 10 moves up and down, it synchronously drives clamping rod 6 through strip hole 8 and L-shaped rod 9, so that clamping rod 6 rotates around hinged seat 5.

[0030] Specifically, sealing gasket 4 is arranged between pipeline 1 and plug 2.

[0031] In an embodiment, the sealing between pipeline 1 and plug 2 is increased to avoid leakage.

[0032] Specifically, the inner side surface of the clamping rod 6 is provided with anti-skid convex points 7.

[0033] In one embodiment, the friction between the clamping rod 6 and the pipeline 1 is increased, thereby achieving an anti-skid effect.

[0034] Specifically, the upper surface of the rotating seat 10 is provided with a hexagonal groove 11.

[0035] In one embodiment, a tool is placed in the hexagonal groove 11 to exert a rotating force on the rotating seat 10, thereby installing the plug 2 on the pipeline 1.

[0036] Working principle: after the plug 2 is installed at the end of the pipeline 1, the end of the pipeline 1 is preliminarily blocked by the threaded structure, and then the high-pressure liquid in the pipeline 1 will exert a force on the piston 13 in the plug 2, so as to move the piston 13 to one side, and the rotating seat 10 will exert a force on the clamping rod 6 along with the movement of the piston 13, so that the clamping rod 6 rotates around the hinge seat 5 and is clamped on the surface of the pipeline 1, thereby secondarily installing and fixing the plug 2, sharing the stress generated by the threaded structure under high pressure, avoiding deformation of the threaded structure, and affecting the sealing performance; the piston 13 made of high-silicon aluminum alloy and the sealing ring 14 made of nylon both have the characteristics of corrosion resistance and wear resistance, so that the plug 2 can be used in a high-temperature and high-pressure environment while ensuring the sealing performance, thereby greatly improving the practicability of the plug 2.

[0037] In the present application, unless otherwise clearly specified and limited, the terms "mounting", "setting", "connecting", "fixing", "screw connecting" and the like should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrated; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements, unless otherwise clearly limited, the above-mentioned terms in the present application can be understood according to the specific meaning of the above-mentioned terms in the present application by the person skilled in the art according to the specific situation.

[0038] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A high-pressure-resistant safety plug for hydraulic valves, comprising a pipe (1) and a plug (2), characterized in that The pipe (1) is provided with a plug (2) above, the surface of the plug (2) is provided with external thread (3), and the plug (2) is connected with the pipe (1) through the external thread (3), the upper surface of the plug (2) is provided with a hexagonal hole, and the hexagonal hole is provided with a hexagonal column (12), the lower end surface of the hexagonal column (12) is provided with a piston (13), the side surface of the piston (13) is provided with a groove, and the groove is provided with a sealing ring (14), the upper end surface of the hexagonal column (12) is fixedly provided with a rotating seat (10), one side of the rotating seat (10) is provided with a clamping rod (6), and the clamping rod (6) is connected with the plug (2) through a hinge seat (5).

2. A high pressure resistant safety plug for hydraulic valves according to claim 1, characterized in that The piston (13) is made of high-silicon aluminum alloy, and the sealing ring (14) is made of nylon.

3. A high pressure resistant safety plug for hydraulic valves according to claim 1, characterized in that The side surface of the clamping rod (6) is provided with a strip-shaped hole (8), and the strip-shaped hole (8) is provided with a type rod (9), and the type rod (9) is fixed to the side surface of the rotating seat (10).

4. A high pressure resistant safety plug for hydraulic valves according to claim 1, characterized in that The pipe (1) and the plug (2) are provided with a sealing gasket (4).

5. A high pressure resistant safety plug for hydraulic valves according to claim 1, characterized in that The inner side surface of the clamping rod (6) is provided with an anti-skid convex point (7).

6. A high pressure resistant safety plug for hydraulic valves according to claim 1, characterized in that The upper surface of the rotating seat (10) is provided with a hexagonal groove (11).

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