High-pressure container sealing mechanism

Abstract

The utility model relates to the technical field of sealing components, and discloses a high-pressure container sealing mechanism which comprises a sealing container, the interior of the sealing container is communicated with a connecting pipeline extending to the outside of the sealing container, the interior of the connecting pipeline is fixedly connected with a sealing baffle ring, and the inner side of the connecting pipeline is fixedly provided with a connecting support. An elastic telescopic pushing piece is fixedly installed on the inner side of the connecting support, a sliding support is fixedly installed on the inner side of the connecting pipeline, and a sealing block making contact with the inner wall of the sealing baffle ring is slidably connected to the inner side of the sliding support. The outer portion of the connecting pipeline is connected with a pushing component through threads, the pushing component extends into the connecting pipeline and pushes the elastic telescopic pushing piece to act, and the inner wall of the connecting pipeline is provided with an extrusion elastic piece extruded with the sealing block. The sealing mechanism of the high-pressure container has the advantages that the rotating friction does not exist in the sealing piece in the pressure relief process, and the service life of the sealing piece is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to sealing member technical field, concretely is a kind of high-pressure vessel sealing mechanism. BACKGROUND

[0002] High-pressure vessel sealing mechanism is used to ensure that the internal substance of high-pressure container does not leak when working, and the sealing property of container is required to be very high in high-pressure environment, and the sealing mechanism is usually made of high-strength, high-pressure-resistant material, which effectively resists high pressure through reasonable pressure distribution and sealing force transmission, ensures the safe operation of the container and prevents high-pressure gas or liquid leakage from causing danger.

[0003] The valve rod connecting part of the existing high-pressure container usually directly bears the sealing function, and when the valve rod is twisted, the sealing ring at the end thereof rotates simultaneously and forms friction with the sealing point, so that the sealing unit at the end of the valve rod is easily affected after being opened and closed for many times, thereby reducing the sealing performance, and therefore a high-pressure container sealing mechanism is proposed to solve the above problems. SUMMARY

[0004] (I) Technical problem solved

[0005] In view of the deficiencies of the prior art, the utility model provides a high-pressure container sealing mechanism, which has the advantages of no rotating friction of the sealing element in the pressure relief process, thereby prolonging the service life, and solves the problem that the valve rod connecting part of the existing high-pressure container usually directly bears the sealing function, and when the valve rod is twisted, the sealing ring at the end thereof rotates simultaneously and forms friction with the sealing point, so that the sealing unit at the end of the valve rod is easily affected after being opened and closed for many times, thereby reducing the sealing performance.

[0006] (II) Technical scheme

[0007] The technical scheme for solving the above technical problems of the utility model is as follows: a high-pressure container sealing mechanism, comprising a sealing container, a connecting pipeline extending to the outside of the sealing container is communicated in the inside of the sealing container, a sealing baffle is fixedly connected in the inside of the connecting pipeline, a connecting support is fixedly installed on the inner side of the connecting pipeline, an elastic telescopic pushing piece is fixedly installed on the inner side of the connecting support, a sliding support is fixedly installed on the inner side of the connecting pipeline, a sealing block in contact with the inner wall of the sealing baffle is slidably connected on the inner side of the sliding support, a pushing member extending to the inside of the connecting pipeline and pushing the elastic telescopic pushing piece to act is threadedly connected on the outside of the connecting pipeline, and an extrusion elastic sheet extruded by the sealing block is arranged on the inner wall of the connecting pipeline.

[0008] The utility model has the advantages of:

[0009] The high-pressure container sealing mechanism has the advantages that the sealing element does not have rotating friction during pressure relief, and the service life is prolonged.

[0010] On the basis of the above technical scheme, the utility model further can make the following improvement.

[0011] Further, the inner side wall of the sealing block is provided with a circular table through hole with a large lower part and a small upper part, and the sealing block is composed of a sliding rod and a circular table sealing block.

[0012] The beneficial effect of the above further scheme is that the sealing performance can be effectively improved, and the container can be further sealed under the action of the gas pressure in the container.

[0013] Further, the elastic expansion pushing member comprises a spring fixed to the inner side bottom wall of the connecting support, the other end of the spring is fixedly connected with a connecting ring in sliding connection with the inner wall of the connecting support, and the inner side of the connecting ring is fixedly installed with two pushing rods extending to the upper and lower sides of the connecting support respectively.

[0014] The beneficial effect of the above further scheme is that the elastic expansion pushing member can effectively push the pushing rod to move through driving.

[0015] Further, the shaft center of the pushing rod and the shaft center of the sliding rod are located in the same plane, and the spring is in a compressed state.

[0016] The beneficial effect of the above further scheme is that the pushing rod can conveniently push the sliding rod.

[0017] Further, the pushing member comprises a transmission screw threadedly connected with the connecting pipeline and extending into the connecting pipeline, the other end of the transmission screw is rotationally connected with a pushing block in sliding connection with the connecting support, the side bottom of the pushing block close to the elastic expansion pushing member is beveled, and the beveled surface is polished.

[0018] The beneficial effect of the above further scheme is that the pushing member can conveniently push the pushing block through the transmission screw, thereby affecting the subsequent member. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model;

[0020] Figure 2 It is an enlarged view of A in the drawing of the utility model;

[0021] Figure 3 It is a connecting diagram of the connecting pipeline and the extruded elastic sheet of the utility model;

[0022] Figure 4 This is a connection diagram of the connecting bracket and the pushing block of this utility model.

[0023] In the diagram: 1. Sealed container; 2. Connecting pipe; 3. Sealing ring; 4. Connecting bracket; 5. Elastic telescopic pusher; 51. Spring; 52. Connecting ring; 53. Push rod; 6. Sliding bracket; 7. Sealing block; 8. Pushing component; 81. Transmission screw; 82. Pushing block; 9. Compressive elastic sheet. Detailed Implementation

[0024] 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.

[0025] In the embodiments, by Figures 1-4 The present invention discloses a high-pressure vessel sealing mechanism, comprising a sealing container 1, a connecting pipe 2 extending to the outside of the sealing container 1, a sealing retaining ring 3 fixedly connected inside the connecting pipe 2, a connecting bracket 4 fixedly installed on the inner side of the connecting pipe 2, an elastic telescopic pusher 5 fixedly installed on the inner side of the connecting bracket 4, a sliding bracket 6 fixedly installed on the inner side of the connecting pipe 2, a sealing block 7 slidably connected to the inner side of the sliding bracket 6 in contact with the inner wall of the sealing retaining ring 3, a pusher 8 extending into the connecting pipe 2 and pushing the elastic telescopic pusher 5 to move, and a compression elastic sheet 9 pressed against the sealing block 7 on the inner wall of the connecting pipe 2.

[0026] Furthermore, the inner wall of the sealing ring 3 is provided with a frustum-shaped through hole that is larger at the bottom and smaller at the top. The sealing block 7 is composed of a sliding rod and a frustum-shaped sealing block. The frustum-shaped sealing block is located inside the frustum-shaped through hole and contacts its inner wall to form a seal.

[0027] Furthermore, the elastic telescopic pusher 5 includes a spring 51 fixed to the inner bottom wall of the connecting bracket 4, and a connecting ring 52 that is slidably connected to the inner wall of the connecting bracket 4 is fixedly connected to the other end of the spring 51. A push rod 53 with both ends extending to the upper and lower sides of the connecting bracket 4 is fixedly installed on the inner side of the connecting ring 52.

[0028] Furthermore, the axis of the push rod 53 and the axis of the sliding rod are located in the same plane, and the spring 51 is in a compressed state.

[0029] The elastic expansion pusher 5 is affected by the elastic force of the spring 51 in working, so that the push rod 53 is always in the uppermost position and cannot contact the lower sealing block 7. When the push rod 53 is pressed, the spring 51 starts to compress and the push rod 53 moves downward, thereby pushing the sealing block 7 to start moving downward.

[0030] Further, the push member 8 comprises a transmission screw 81 which is screwed to the connecting pipe 2 and extends into the connecting pipe 2, one end of the transmission screw 81 is rotatably connected with a push block 82 which is slidably connected with the connecting support 4, the side bottom of the push block 82 close to the elastic expansion pusher 5 is beveled and the beveled surface is polished, and the outer part of the connecting pipe 2 is provided with a sealing ring which is sleeved on the outer part of the transmission screw 81.

[0031] The push member is arranged, and the push block 82 is pushed by screwing the transmission screw 81, so that the beveled surface of the push block 82 presses the push rod 53, thereby pushing the push rod 53 to start moving downward to push the member below the push rod 53.

[0032] Working principle:

[0033] In normal state, the sealing block 7 is pressed by the pressing elastic piece 9, so that the sealing block 7 completes sealing in cooperation with the sealing baffle 3. At this time, the high pressure in the container can push the sealing block 7 to contact the sealing baffle 3 more closely, thereby completing sealing.

[0034] When it is needed to release the sealing, the transmission screw 81 is screwed to start pressing the push rod 53 to move downward under the action of the push block 82, so as to push the sealing block 7 to be separated from the sealing baffle 3. At this time, the high pressure gas in the sealed container 1 can flow out through the gap between the sealing block 7 and the sealing baffle 3, thereby realizing releasing the sealing. In the process of releasing the sealing, there is no torsional friction between the sealing block 7 and the sealing baffle 3, so the wear of the sealing block 7 can be reduced.

[0035] It should be noted that the relational terms herein such as first and second and the like are used only to differentiate one entity or action from another, and do not necessarily require or imply that any such actual relationship or order exists between or among the entities or actions. Also, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements not only includes those elements, but also includes other elements not explicitly listed or other elements that are inherent to such process, method, article or apparatus. Without more limitations, an element defined by the statement "including a..." does not exclude the presence of additional identical elements in the process, method, article or apparatus that includes the element.

[0036] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-pressure container sealing mechanism comprising a sealed container (1), characterized by: The sealed container (1) is internally communicated with a connecting pipeline (2) extending to its outside, the inside of the connecting pipeline (2) is fixedly connected with a sealing baffle ring (3), the inner side of the connecting pipeline (2) is fixedly installed with a connecting support (4), the inner side of the connecting support (4) is fixedly installed with an elastic telescopic pushing piece (5), the inner side of the connecting pipeline (2) is fixedly installed with a sliding support (6), the inner side of the sliding support (6) is slidingly connected with a sealing block (7) in contact with the inner wall of the sealing baffle ring (3), the outside of the connecting pipeline (2) is threadedly connected with a pushing member (8) extending to its inside and pushing the elastic telescopic pushing piece (5) to act, the inner wall of the connecting pipeline (2) is provided with an extruding elastic sheet (9) extruding the sealing block (7).

2. A high pressure vessel sealing mechanism according to claim 1, wherein: The inner side wall of the sealing baffle ring (3) is provided with a circular truncated hole with a large lower part and a small upper part, the sealing block (7) is composed of a sliding rod and a circular truncated sealing block, the circular truncated sealing block is located inside the circular truncated hole and in contact with the inner wall thereof to form a seal.

3. A high pressure vessel sealing mechanism according to claim 2, wherein: The elastic telescopic pushing piece (5) comprises a spring (51) fixed to the inner side bottom wall of the connecting support (4), the other end of the spring (51) is fixedly connected with a connecting ring (52) slidingly connected with the inner wall of the connecting support (4), the inner side of the connecting ring (52) is fixedly installed with two pushing rods (53) extending to the upper and lower sides of the connecting support (4) respectively.

4. A high pressure vessel sealing mechanism according to claim 3, wherein: The axis of the pushing rod (53) and the axis of the sliding rod are located in the same plane, and the spring (51) is in a compressed state.

5. A high pressure vessel sealing mechanism according to claim 1, wherein: The pushing member (8) comprises a transmission screw (81) threadedly connected with the connecting pipeline (2) and extending to its inside, the other end of the transmission screw (81) is rotatably connected with a pushing block (82) slidingly connected with the connecting support (4), the bottom side of the pushing block (82) close to the elastic telescopic pushing piece (5) is beveled and the beveled surface is polished, and the outside of the connecting pipeline (2) is provided with a sealing ring sleeved on the outside of the transmission screw (81).

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