Sealing element and valve sealing plug

Abstract

The utility model relates to the technical field of sealing elements and valve sealing plugs, in particular to a sealing element and a valve sealing plug which comprise a valve sealing plug, the middle of the valve sealing plug is hollow, a telescopic groove is formed in the periphery of the middle of the valve sealing plug, springs are arranged on the two sides of the telescopic groove, and the other ends of the springs are connected with extrusion blocks. A layer of extrusion block is tightly attached to the outer side of the telescopic groove, and a supporting base is arranged at the bottom of the extrusion block and supports the extrusion block. The sealing element and the valve sealing plug have the advantages that when a valve is overhauled, the valve sealing plug is screwed into an inlet and an outlet of the valve through the extrusion bolt at the bottom of the valve sealing plug, and the O-shaped sealing ring in the annular groove formed in the bottom end of the sealing plug conducts first-layer sealing on the inlet and the outlet; and then an extrusion bolt inserted into the top of the valve sealing plug is screwed, and the extrusion bolt descends through rotation.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing components and valve sealing plugs, in particular to a sealing component and a valve sealing plug. Background Art

[0002] Valve sealing plugs usually refer to a part used to close the inlet and outlet of valves in pipelines or equipment. Its main function is to prevent liquid, gas or other substances from leaking from the valve to ensure the normal operation of the equipment.

[0003] In the prior art, when repairing or replacing a valve, once a leakage is found, a valve sealing plug can be used to temporarily block the inlet and outlet to prevent the leakage from further expanding.

[0004] However, in the prior art, valve sealing plugs are mostly sealed by sleeves of a sealing ring on the plug to seal the inlet and outlet. During long-term use, the sealing ring may deform, resulting in incomplete sealing of the inlet and outlet, causing leakage. Utility Model Content

[0005] The purpose of the utility model is to provide a sealing element and a valve sealing plug to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a valve sealing plug, the middle part of the valve sealing plug is hollow, and expansion grooves are provided around the middle part of the valve sealing plug, springs are provided on both sides of the expansion groove, and the other end of the spring is connected to an extrusion block, and a layer of extrusion block is tightly attached to the outer side of the expansion groove, and a support seat is provided at the bottom of the extrusion block, which supports the extrusion block.

[0007] Preferably, the bottom of the valve sealing plug is provided with a thread, and the valve sealing plug is screwed into the inlet and outlet of the valve through the thread and fixed therein.

[0008] Preferably, a ring groove is formed at the top of the thread, an O-ring is sleeved in the ring groove, and the O-ring seals the inlet and outlet of the valve.

[0009] Preferably, an extrusion bolt is inserted into the middle of the top of the valve sealing plug. Screwing the extrusion bolt can drive the extrusion bolt to rise and fall, squeeze the arc surface of the extrusion block, and squeeze the extrusion block out of the telescopic groove through the spring.

[0010] Preferably, a thread groove is provided in the middle of the top of the support seat, the thread groove is parallel to the extrusion bolt, and the extrusion bolt can be inserted into the thread groove for fixation.

[0011] A valve sealing plug comprises the above-mentioned sealing element.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The utility model discloses a sealing member and a valve sealing plug. When the valve is inspected and repaired, the valve sealing plug is firstly screwed into the inlet and outlet of the valve through the extrusion bolt at the bottom of the valve sealing plug. The annular sealing ring in the annular groove at the bottom of the sealing plug performs the first layer of sealing on the inlet and outlet of the valve. Then, the extrusion bolt plugged in the top of the valve sealing plug is screwed. The extrusion bolt descends by rotation and starts to squeeze the extrusion block inside the middle part of the valve sealing plug. The inner side of the extrusion block is an arc surface. At the same time, the two sides of the extrusion block are connected to the springs on the two sides of the telescopic groove. The extrusion bolt slowly squeezes the arc surface of the extrusion block so that the extrusion block slowly extends out of the telescopic groove. The outer side of the telescopic groove is provided with a sealing ring. The extended extrusion block squeezes the sealing ring so that the surrounding of the sealing ring is slowly stretched and close to the inner wall of the valve outlet to further seal the valve. The bottom of the internal extrusion block of the valve sealing plug is provided with a support seat. The support seat supports the extrusion block to prevent the extrusion block from falling out of the inside of the valve sealing plug. The middle part of the top of the support seat is also provided with a threaded groove. The extrusion bolt can be inserted into the threaded groove for fixing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is another schematic diagram of the cross-sectional structure of the utility model.

[0017] In the figure: valve sealing plug 1, extrusion bolt 2, thread 3, sealing ring 4, O-ring 5, ring groove 6, support seat 7, thread groove 8, telescopic groove 9, extrusion block 10, spring 11. DETAILED DESCRIPTION

[0018] In order to make the purpose and technical solution of the present invention clearly and completely described, and the advantages more clearly understood, the embodiments of the present invention are further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are part of the embodiments of the present invention, rather than all of the embodiments, and are only used to explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0019] Embodiment 1:

[0020] See also Figures 1 to 3The utility model provides a technical solution: a valve sealing plug 1, the middle part of the valve sealing plug 1 is hollow, and expansion grooves 9 are opened around the middle part of the valve sealing plug 1. Springs 11 are arranged on both sides of the expansion groove 9, and the other end of the spring 11 is connected to an extrusion block 10. The outer side of the expansion groove 9 is tightly attached to a layer of extrusion block 10, and a support seat 7 is arranged at the bottom of the extrusion block 10, and the support seat 7 supports the extrusion block 10; a support seat 7 is arranged at the bottom of the internal extrusion block 10 of the valve sealing plug 1, and the support seat 7 supports the extrusion block 10 to prevent the extrusion block 10 from falling out of the inside of the valve sealing plug 1.

[0021] Embodiment 2:

[0022] On the basis of the first embodiment, a seal disclosed in the second embodiment of the utility model has a structure basically the same as that in the first embodiment, except that a thread 3 is provided at the bottom of the valve sealing plug 1, and the valve sealing plug 1 is screwed into the inlet and outlet of the valve through the thread 3 and fixed therein; an annular groove 6 is provided at the top of the thread 3, and an O-ring 5 is sleeved in the annular groove 6, and the O-ring 5 seals the inlet and outlet of the valve; the O-ring 5 in the annular groove 6 provided at the top of the extrusion bolt 2 performs the first layer of sealing on the inlet and outlet.

[0023] Embodiment three:

[0024] A sealing member disclosed in the third embodiment of the utility model has a structure that is basically the same as that in the second embodiment, except that an extrusion bolt 2 is inserted in the middle of the top of the valve sealing plug 1, and screwing the extrusion bolt 2 can drive the extrusion bolt 2 to rise and fall, thereby extruding the arc surface of the extrusion block 10, and extruding the extrusion block 10 out of the telescopic groove 9 through the spring 11; a threaded groove 8 is provided in the middle of the top of the support seat 7, and the threaded groove 8 is parallel to the extrusion bolt 2, and the extrusion bolt 2 can be inserted into the threaded groove 8 for fixing; the extrusion bolt 2 slowly squeezes the arc surface of the extrusion block 10 so that the extrusion block 10 slowly extends out of the telescopic groove 9.

[0025] The present scheme is specifically as follows: a sealing member and a valve sealing plug in the present utility model, when the valve is inspected and repaired, the valve sealing plug 1 is first screwed into the inlet and outlet of the valve through the extrusion bolt 2 at the bottom of the valve sealing plug 1, and the O-ring 5 in the annular groove 6 opened at the bottom of the sealing plug 1 performs the first layer of sealing on the inlet and outlet, and then the extrusion bolt 2 plugged in the top of the valve sealing plug 1 is screwed, and the extrusion bolt 2 is lowered by rotation, and begins to squeeze the extrusion block 10 inside the middle part of the valve sealing plug 1, the inner side of the extrusion block 10 is an arc surface, and at the same time, the two sides of the extrusion block 10 are connected to the springs 1 on both sides of the telescopic groove 9. 1, the extrusion bolt 2 slowly squeezes the arc surface of the extrusion block 10 so that the extrusion block 10 slowly extends out from the telescopic groove 9, and a sealing ring 4 is arranged on the outside of the telescopic groove 9. The extended extrusion block 10 squeezes the sealing ring 4 so that the surrounding of the sealing ring 4 is slowly stretched out and close to the inner wall of the valve outlet to further seal the valve. A support seat 7 is arranged at the bottom of the extrusion block 10 inside the valve sealing plug 1, and the support seat 7 supports the extrusion block 10 to prevent the extrusion block 10 from falling out of the inside of the valve sealing plug 1. A threaded groove 8 is also arranged in the middle of the top of the support seat 7, and the extrusion bolt 2 can be inserted into the threaded groove 8 for fixing.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A sealing member, characterized in that: include: A valve sealing plug (1), wherein the middle of the valve sealing plug (1) is hollow, and a telescopic groove (9) is provided around the middle of the valve sealing plug (1), springs (11) are provided on both sides of the telescopic groove (9), and the other end of the spring (11) is connected to an extrusion block (10), and a layer of the extrusion block (10) is closely attached to the outer side of the telescopic groove (9), and a support seat (7) is provided at the bottom of the extrusion block (10), and the support seat (7) supports the extrusion block (10); A valve sealing plug (1), wherein a squeeze bolt (2) is inserted into the middle of the top of the valve sealing plug (1); The telescopic groove (9) is provided with a sealing ring (4) on the outer side of the telescopic groove (9).

2. A seal according to claim 1, characterized in that: The bottom of the valve sealing plug (1) is provided with a thread (3), and the valve sealing plug (1) is screwed into the inlet and outlet of the valve through the thread (3) and fixed therein.

3. A seal according to claim 2, characterized in that: The top of the thread (3) is provided with an annular groove (6), an O-shaped sealing ring (5) is sleeved in the annular groove (6), and the O-shaped sealing ring (5) seals the inlet and outlet of the valve.

4. A sealing member according to claim 3, characterized in that: The extrusion bolt (2) can drive the extrusion bolt (2) to rise and fall, thereby extruding the arc surface of the extrusion block (10), and extruding the extrusion block (10) out of the telescopic slot (9) through the spring (11).

5. A sealing element according to claim 4, characterized in that: A thread groove (8) is provided in the middle of the top of the support seat (7), the thread groove (8) is parallel to the extrusion bolt (2), and the extrusion bolt (2) can be inserted into the thread groove (8) for fixing.

6. A valve sealing plug, characterized in that: The sealing member comprises the sealing member according to any one of claims 1 to 5.

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