High-compression-resistant sealing assembly

Abstract

The utility model relates to the technical field of sealing assemblies, in particular to a high-compression-resistant sealing assembly which comprises a stabilizing mechanism, the inner wall of the stabilizing mechanism is movably connected with the outer wall of a sealing mechanism, the top end of the stabilizing mechanism is fixedly connected with the bottom end of a limiting mechanism, and the inner wall of the stabilizing mechanism is fixedly connected with one end of a clamping mechanism. A first sealing ring, a sealing ring and a second sealing ring are arranged, the bottom sealing frame and the top sealing frame are mutually folded through positioning of a positioning block, so that an extrusion plate enters a clamping groove, the extrusion plate extrudes the outer wall of a convex block, the convex block is extruded, and the clamping plate is driven to move towards the outer wall of the first sealing ring; and the clamping plate moves to stretch the connecting spring, so that the first sealing ring, the sealing ring and the second sealing ring are stably clamped, the clamping stability of the first sealing ring, the sealing ring and the second sealing ring is improved, and the phenomenon that the first sealing ring, the sealing ring and the second sealing ring deviate is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of sealing components, in particular to a high compression resistant sealing component. Background Art

[0002] Seals are materials or parts that prevent fluids or solid particles from leaking between adjacent mating surfaces and prevent external impurities such as dust and moisture from invading components inside machinery and equipment. In order to increase their service life, most of today's sealing components have the function of resisting high compression.

[0003] Nowadays, the sealing rings inside the high-pressure resistant sealing components are mostly stabilized and limited by simple limit grooves, which makes it easy for the sealing ring to shift position from the sealing groove during actual use, thereby reducing the sealing effect of the sealing component. Secondly, since the sealing component is relatively fixed inside the sealing component, it is inconvenient when the sealing ring wears and needs to be damaged. Utility Model Content

[0004] The purpose of the utility model is to provide a high-compression resistant sealing assembly to solve the problem mentioned in the above background technology that the sealing ring is prone to positional displacement with the sealing groove during actual use, thereby reducing the sealing effect of the sealing assembly, and secondly, because the sealing assembly is relatively fixed inside the sealing assembly, it is inconvenient when the sealing ring is worn and needs to be damaged. In order to achieve the above purpose, the utility model provides the following technical solutions: a high-compression resistant sealing assembly, including a stabilizing mechanism, the inner wall of the stabilizing mechanism is movably connected to the outer wall of the sealing mechanism, the top of the stabilizing mechanism is fixedly connected to the bottom end of the limiting mechanism, the inner wall of the stabilizing mechanism is fixedly connected to one end of the clamping mechanism, and the inner wall of the clamping mechanism is movably connected to the outer wall of the sealing mechanism.

[0005] The inner wall of the stabilizing mechanism is fixedly connected to one end of the mounting mechanism, one side of the mounting mechanism is fixedly connected to one side of the locking mechanism, and the inner wall of the stabilizing mechanism is fixedly connected to the outer wall of the locking mechanism.

[0006] Preferably, the stabilizing mechanism comprises a bottom sealing frame, a positioning block, a top sealing frame and an extrusion plate, and the top end of the bottom sealing frame is fixedly connected to the bottom end of the positioning block, the bottom of the top sealing frame is provided with a positioning groove, and the inner wall of the positioning groove is movably connected to the outer wall of the positioning block, the bottom of the top sealing frame is fixedly connected to the top end of the extrusion plate, and the bottom sealing frame is provided with a bottom sealing groove inside, the top sealing frame is provided with a top sealing groove inside, and the inner wall of the bottom sealing groove is provided with a clamping groove, the bottom of the bottom sealing frame is provided with a spring groove, and the top of the top sealing frame is provided with a stabilizing groove, the top of the stabilizing groove is provided with a fixing groove, and the inner walls of the bottom sealing groove and the top sealing groove are both provided with a first sealing opening, the bottom of the top sealing frame is provided with a preliminary limiting groove, and the inner wall of the preliminary limiting groove is provided with a limiting opening.

[0007] Preferably, the sealing mechanism consists of a first sealing ring, a sealing ring and a second sealing ring, and the outer wall of the first sealing ring is movably connected to the inner walls of the bottom sealing groove and the top sealing groove, one side of the first sealing ring is fixedly connected to one side of the sealing ring, and the side of the sealing ring away from the first sealing ring is fixedly connected to one side of the second sealing ring, and the outer wall of the sealing ring is movably connected to the inner wall of the first sealing port.

[0008] Preferably, the limiting mechanism includes a limiting rod, an extrusion spring and a limiting ring, and the bottom end of the limiting rod is fixedly connected to the top end of the bottom sealing frame, an arc-shaped groove is provided at the bottom of the limiting rod, and the inner wall of the arc-shaped groove is fixedly connected to one end of the extrusion spring, one end of the extrusion spring away from the inner wall of the arc-shaped groove is fixedly connected to one side of the limiting ring, and the outer wall of the limiting rod is movably connected to the inner wall of the preliminary limiting groove, and the outer wall of the limiting ring is movably connected to the inner wall of the limiting opening.

[0009] Preferably, the clamping mechanism consists of a connecting spring, a clamping plate and a protrusion, and one end of the connecting spring is fixedly connected to the inner wall of the clamping groove, the end of the connecting spring away from the inner wall of the clamping groove is fixedly connected to one side of the clamping plate, and one side of the clamping plate is fixedly connected to one side of the protrusion, the clamping plate and the protrusion are movably connected to the inner wall of the clamping groove, and a second sealing port is provided on the other side of the clamping plate, the inner wall of the second sealing port is movably connected to the outer wall of the sealing ring, and the outer wall of the protrusion away from the clamping plate is movably connected to one side of the extrusion plate.

[0010] Preferably, the mounting mechanism includes a return spring, a connecting rod and a mounting frame, and one end of the return spring is fixedly connected to the inner wall of the spring groove, the other end of the return spring is fixedly connected to one end of the connecting rod, and the outer wall of the connecting rod is movably connected to the inner wall of the spring groove, and the other end of the connecting rod is fixedly connected to one side of the mounting frame.

[0011] Preferably, the locking mechanism consists of a locking plate, a threaded ring and a threaded clamping block, and one side of the locking plate is fixedly connected to one side of the mounting frame, the outer wall of the threaded ring is movably connected to the inner wall of the fixing groove, and the outer wall of the locking plate is movably connected to the inner wall of the stabilizing groove, a threaded movable groove is provided inside the threaded ring, and the inner wall of the threaded movable groove is movably connected to the outer wall of the threaded clamping block, a clamping groove is provided inside the locking plate, and the inner wall of the clamping groove is movably connected to the bottom outer wall of the threaded clamping block.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] In the utility model, when the first sealing ring, the sealing ring and the second sealing ring are installed, the first sealing ring, the sealing ring and the second sealing ring are placed in the interior of the bottom sealing frame, and at the same time, the first sealing ring, the sealing ring and the second sealing ring are placed on one side of the clamping plate, and the bottom sealing frame and the top sealing frame are closed together through the positioning of the positioning block, so that the extrusion plate enters the interior of the clamping groove, and the extrusion plate squeezes the outer wall of the protrusion. The protrusion is squeezed, driving the clamping plate to move toward the outer wall of the first sealing ring, and the movement of the clamping plate stretches the connecting spring, thereby clamping the first sealing ring, the sealing ring and the second sealing ring stably, thereby increasing the clamping stability of the first sealing ring, the sealing ring and the second sealing ring, and reducing the phenomenon of deviation of the first sealing ring, the sealing ring and the second sealing ring.

[0014] In the utility model, when the bottom sealing frame and the top sealing frame are closed, the limiting rod enters the interior of the preliminary limiting groove, and the limiting ring is driven to enter the interior of the limiting opening by the resetting of the extrusion spring, so that the bottom sealing frame and the top sealing frame are initially limited after closing. After the bottom sealing frame and the top sealing frame are closed, the connecting rod is driven to move by the resetting of the resetting spring, so that the mounting frame contacts the outer walls of the bottom sealing frame and the top sealing frame, and the clamping plate enters the interior of the stabilizing groove, and the threaded clamping block is rotated so that the outer wall of the threaded clamping block moves downward against the outer wall of the threaded ring, and the threaded ring moves downward into the interior of the clamping groove opened in the clamping plate, thereby stabilizing the mounting frame, facilitating the installation and replacement of the first sealing ring, the sealing ring and the second sealing ring by the staff, and increasing the stabilizing effect after installation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the utility model;

[0016] Figure 2 It is a cross-sectional view of the utility model;

[0017] Figure 3 It is an exploded view of the utility model;

[0018] Figure 4 It is an exploded view of the installation mechanism in the utility model;

[0019] Figure 5 It is an exploded view of the limiting mechanism in the utility model;

[0020] Figure 6 It is an exploded view of the clamping mechanism in the utility model;

[0021] Figure 7 It is an exploded view of the sealing mechanism in the utility model;

[0022] Figure 8 It is an exploded view of the engaging mechanism in the utility model.

[0023] In the figure: 1. stabilizing mechanism; 101. bottom sealing frame; 102. positioning block; 103. top sealing frame; 104. extrusion plate; 2. sealing mechanism; 201. first sealing ring; 202. sealing ring; 203. second sealing ring; 3. limiting mechanism; 301. limiting rod; 302. extrusion spring; 303. limiting ring; 4. clamping mechanism; 401. connecting spring; 402. clamping plate; 403. protrusion; 5. mounting mechanism; 501. reset spring; 502. connecting rod; 503. mounting frame; 6. locking mechanism; 601. locking plate; 602. threaded ring; 603. threaded clamping block. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technical personnel in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figures 1 to 8 The utility model provides a technical solution: a high-compression resistant sealing assembly, including a stabilizing mechanism 1, the inner wall of the stabilizing mechanism 1 is movably connected to the outer wall of the sealing mechanism 2, the top of the stabilizing mechanism 1 is fixedly connected to the bottom end of the limiting mechanism 3, the inner wall of the stabilizing mechanism 1 is fixedly connected to one end of the clamping mechanism 4, and the inner wall of the clamping mechanism 4 is movably connected to the outer wall of the sealing mechanism 2.

[0026] The inner wall of the stabilizing mechanism 1 is fixedly connected to one end of the mounting mechanism 5 , one side of the mounting mechanism 5 is fixedly connected to one side of the locking mechanism 6 , and the inner wall of the stabilizing mechanism 1 is fixedly connected to the outer wall of the locking mechanism 6 .

[0027] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the stabilizing mechanism 1 includes a bottom sealing frame 101, a positioning block 102, a top sealing frame 103 and an extrusion plate 104, and the top of the bottom sealing frame 101 is fixedly connected to the bottom end of the positioning block 102, the bottom of the top sealing frame 103 is provided with a positioning groove, and the inner wall of the positioning groove is movably connected to the outer wall of the positioning block 102, the bottom of the top sealing frame 103 is fixedly connected to the top of the extrusion plate 104, and the bottom sealing frame 101 is provided with a bottom sealing groove, the top sealing frame 103 is provided with a top sealing groove, and the inner wall of the bottom sealing groove is provided with a bottom sealing groove. There is a clamping groove, a spring groove is provided at the bottom of the bottom sealing frame 101, and a stabilizing groove is provided at the top of the top sealing frame 103, a fixing groove is provided at the top of the stabilizing groove, and the inner walls of the bottom sealing groove and the top sealing groove are both provided with a first sealing opening, a preliminary limiting groove is provided at the bottom of the top sealing frame 103, and a limiting opening is provided on the inner wall of the preliminary limiting groove, the bottom sealing frame 101 and the top sealing frame 103 are closed together by the positioning of the positioning block 102, which facilitates the staff to stabilize the first sealing ring 201, the sealing ring 202 and the second sealing ring 203.

[0028] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the sealing mechanism 2 is composed of a first sealing ring 201, a sealing ring 202 and a second sealing ring 203, and the outer wall of the first sealing ring 201 is movably connected to the inner walls of the bottom sealing groove and the top sealing groove, one side of the first sealing ring 201 is fixedly connected to one side of the sealing ring 202, and the side of the sealing ring 202 away from the first sealing ring 201 is fixedly connected to one side of the second sealing ring 203, the outer wall of the sealing ring 202 is movably connected to the inner wall of the first sealing port, when the first sealing ring 201, the sealing ring 202 and the second sealing ring 203 are installed, the first sealing ring 201, the sealing ring 202 and the second sealing ring 203 are placed in the bottom sealing frame 101, and the sealing operation is performed through the first sealing ring 201, the sealing ring 202 and the second sealing ring 203.

[0029] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the limiting mechanism 3 includes a limiting rod 301, an extrusion spring 302 and a limiting ring 303, and the bottom end of the limiting rod 301 is fixedly connected to the top of the bottom sealing frame 101, an arc-shaped groove is provided at the bottom of the limiting rod 301, and the inner wall of the arc-shaped groove is fixedly connected to one end of the extrusion spring 302, and the end of the extrusion spring 302 away from the inner wall of the arc-shaped groove is fixedly connected to one side of the limiting ring 303, and the outer wall of the limiting rod 301 is movably connected to the inner wall of the preliminary limiting groove, and the outer wall of the limiting ring 303 is movably connected to the inner wall of the limiting opening, the limiting rod 301 enters the interior of the preliminary limiting groove, and the limiting ring 303 is driven to enter the interior of the limiting opening by the resetting of the extrusion spring 302, so that the bottom sealing frame 101 and the top sealing frame 103 are initially limited after closing.

[0030] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the clamping mechanism 4 is composed of a connecting spring 401, a clamping plate 402 and a protrusion 403, and one end of the connecting spring 401 is fixedly connected to the inner wall of the clamping groove, the end of the connecting spring 401 away from the inner wall of the clamping groove is fixedly connected to one side of the clamping plate 402, and one side of the clamping plate 402 is fixedly connected to one side of the protrusion 403, the clamping plate 402 and the protrusion 403 are movably connected to the inner wall of the clamping groove, and the other side of the clamping plate 402 is provided with a second sealing port, and the second sealing port is The inner wall is movably connected to the outer wall of the sealing ring 202, and the outer wall of the side of the protrusion 403 away from the clamping plate 402 is movably connected to one side of the extrusion plate 104. The extrusion plate 104 squeezes the outer wall of the protrusion 403, and the protrusion 403 is squeezed, driving the clamping plate 402 to move toward the outer wall of the first sealing ring 201. The movement of the clamping plate 402 stretches the connecting spring 401, thereby clamping and stabilizing the first sealing ring 201, the sealing ring 202 and the second sealing ring 203.

[0031] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, the mounting mechanism 5 includes a reset spring 501, a connecting rod 502 and a mounting frame 503, and one end of the reset spring 501 is fixedly connected to the inner wall of the spring groove, the other end of the reset spring 501 is fixedly connected to one end of the connecting rod 502, and the outer wall of the connecting rod 502 is movably connected to the inner wall of the spring groove, and the other end of the connecting rod 502 is fixedly connected to one side of the mounting frame 503. The reset of the reset spring 501 drives the connecting rod 502 to move, so that the mounting frame 503 contacts the outer walls of the bottom sealing frame 101 and the top sealing frame 103.

[0032] In this embodiment, Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, the locking mechanism 6 is composed of a locking plate 601, a threaded ring 602 and a threaded clamping block 603, and one side of the locking plate 601 is fixedly connected to one side of the mounting frame 503, the outer wall of the threaded ring 602 is movably connected to the inner wall of the fixed groove, and the outer wall of the locking plate 601 is movably connected to the inner wall of the stable groove, a threaded moving groove is provided inside the threaded ring 602, and the inner wall of the threaded moving groove is movably connected to the outer wall of the threaded clamping block 603, a clamping groove is provided inside the locking plate 601, and the inner wall of the clamping groove is movably connected to the bottom outer wall of the threaded clamping block 603, the locking plate 601 enters the interior of the stable groove, and the threaded clamping block 603 is rotated so that the outer wall of the threaded clamping block 603 moves downwardly along the outer wall of the threaded ring 602, and the threaded ring 602 moves downwardly into the interior of the clamping groove provided inside the locking plate 601, thereby stabilizing the mounting frame 503.

[0033] The use method and advantages of the utility model: When the high compression resistant sealing component is working, the working process is as follows:

[0034] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8As shown, when installing the first sealing ring 201, the sealing ring 202 and the second sealing ring 203, the first sealing ring 201, the sealing ring 202 and the second sealing ring 203 are placed in the bottom sealing frame 101, and at the same time, the first sealing ring 201, the sealing ring 202 and the second sealing ring 203 are placed on one side of the clamping plate 402, and the bottom sealing frame 101 and the top sealing frame 103 are closed together through the positioning of the positioning block 102, so that the extrusion plate 104 enters the inside of the clamping groove, so that the extrusion plate 104 squeezes the outer wall of the protrusion 403, and the protrusion 403 is squeezed, driving the clamping plate 402 to move toward the outer wall of the first sealing ring 201, and the movement of the clamping plate 402 stretches the connecting spring 401, thereby clamping and stabilizing the first sealing ring 201, the sealing ring 202 and the second sealing ring 203. When the bottom sealing frame 101 and the top sealing frame 103 are closed, the limiting rod 301 enters the interior of the preliminary limiting groove, and the limiting ring 303 is driven to enter the interior of the limiting opening by the resetting of the extrusion spring 302, so that the bottom sealing frame 101 and the top sealing frame 103 are initially limited after closing. After the bottom sealing frame 101 and the top sealing frame 103 are closed, the connecting rod 502 is driven to move by the resetting of the resetting spring 501, so that the mounting frame 503 contacts the outer wall of the bottom sealing frame 101 and the top sealing frame 103, and at the same time, the locking plate 601 enters the interior of the stabilizing groove, and the threaded clamping block 603 is rotated so that the outer wall of the threaded clamping block 603 moves downward along the outer wall of the threaded ring 602, and the threaded ring 602 moves downward into the interior of the clamping groove opened in the locking plate 601, thereby stabilizing the mounting frame 503.

[0035] The above shows and describes the basic principle, main features and advantages of the utility model. Technical staff in this industry should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model will have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A high compression resistant sealing assembly, comprising a stabilizing mechanism (1), characterized in that: The inner wall of the stabilizing mechanism (1) is movably connected to the outer wall of the sealing mechanism (2), the top end of the stabilizing mechanism (1) is fixedly connected to the bottom end of the limiting mechanism (3), the inner wall of the stabilizing mechanism (1) is fixedly connected to one end of the clamping mechanism (4), and the inner wall of the clamping mechanism (4) is movably connected to the outer wall of the sealing mechanism (2); The inner wall of the stabilizing mechanism (1) is fixedly connected to one end of the mounting mechanism (5), one side of the mounting mechanism (5) is fixedly connected to one side of the locking mechanism (6), and the inner wall of the stabilizing mechanism (1) is fixedly connected to the outer wall of the locking mechanism (6).

2. A high compression resistant sealing assembly according to claim 1, characterized in that: The stabilizing mechanism (1) comprises a bottom sealing frame (101), a positioning block (102), a top sealing frame (103) and an extrusion plate (104), wherein the top end of the bottom sealing frame (101) is fixedly connected to the bottom end of the positioning block (102), a positioning groove is provided at the bottom of the top sealing frame (103), and the inner wall of the positioning groove is movably connected to the outer wall of the positioning block (102), the bottom of the top sealing frame (103) is fixedly connected to the top end of the extrusion plate (104), and the inner wall of the bottom sealing frame (101) is movably connected to the outer wall of the positioning block (102). A bottom sealing groove is provided at the bottom, a top sealing groove is provided inside the top sealing frame (103), and a clamping groove is provided on the inner wall of the bottom sealing groove, a spring groove is provided at the bottom of the bottom sealing frame (101), and a stabilizing groove is provided at the top of the top sealing frame (103), a fixing groove is provided at the top of the stabilizing groove, and a first sealing opening is provided on the inner walls of the bottom sealing groove and the top sealing groove, and a preliminary limiting groove is provided at the bottom of the top sealing frame (103), and a limiting opening is provided on the inner wall of the preliminary limiting groove.

3. A high compression resistant sealing assembly according to claim 2, characterized in that: The sealing mechanism (2) is composed of a first sealing ring (201), a sealing ring (202) and a second sealing ring (203), and the outer wall of the first sealing ring (201) is movably connected to the inner walls of the bottom sealing groove and the top sealing groove, one side of the first sealing ring (201) is fixedly connected to one side of the sealing ring (202), and the side of the sealing ring (202) away from the first sealing ring (201) is fixedly connected to one side of the second sealing ring (203), and the outer wall of the sealing ring (202) is movably connected to the inner wall of the first sealing opening.

4. A high compression resistant sealing assembly according to claim 3, characterized in that: The limiting mechanism (3) comprises a limiting rod (301), a pressing spring (302) and a limiting ring (303), and the bottom end of the limiting rod (301) is fixedly connected to the top end of the bottom sealing frame (101), an arc-shaped groove is provided at the bottom of the limiting rod (301), and the inner wall of the arc-shaped groove is fixedly connected to one end of the pressing spring (302), one end of the pressing spring (302) away from the inner wall of the arc-shaped groove is fixedly connected to one side of the limiting ring (303), and the outer wall of the limiting rod (301) is movably connected to the inner wall of the preliminary limiting groove, and the outer wall of the limiting ring (303) is movably connected to the inner wall of the limiting opening.

5. A high compression resistant sealing assembly according to claim 4, characterized in that: The clamping mechanism (4) is composed of a connecting spring (401), a clamping plate (402) and a protrusion (403), and one end of the connecting spring (401) is fixedly connected to the inner wall of the clamping groove, and the end of the connecting spring (401) away from the inner wall of the clamping groove is fixedly connected to one side of the clamping plate (402), and one side of the clamping plate (402) is fixedly connected to one side of the protrusion (403), the clamping plate (402) and the protrusion (403) are movably connected to the inner wall of the clamping groove, and a second sealing opening is provided on the other side of the clamping plate (402), the inner wall of the second sealing opening is movably connected to the outer wall of the sealing ring (202), and the outer wall of the protrusion (403) away from the clamping plate (402) is movably connected to one side of the extrusion plate (104).

6. A high compression resistant sealing assembly according to claim 2, characterized in that: The mounting mechanism (5) comprises a return spring (501), a connecting rod (502) and a mounting frame (503), wherein one end of the return spring (501) is fixedly connected to the inner wall of the spring slot, the other end of the return spring (501) is fixedly connected to one end of the connecting rod (502), the outer wall of the connecting rod (502) is movably connected to the inner wall of the spring slot, and the other end of the connecting rod (502) is fixedly connected to one side of the mounting frame (503).

7. A high compression resistant sealing assembly according to claim 6, characterized in that: The engaging mechanism (6) is composed of an engaging plate (601), a threaded ring (602) and a threaded clamping block (603), and one side of the engaging plate (601) is fixedly connected to one side of the mounting frame (503), the outer wall of the threaded ring (602) is movably connected to the inner wall of the fixed groove, and the outer wall of the engaging plate (601) is movably connected to the inner wall of the stable groove, the threaded ring (602) is provided with a threaded movable groove inside, and the inner wall of the threaded movable groove is movably connected to the outer wall of the threaded clamping block (603), and the engaging plate (601) is provided with a clamping groove inside, and the inner wall of the clamping groove is movably connected to the outer wall of the bottom of the threaded clamping block (603).

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