Small copper sleeve sealing mechanism

Abstract

The small copper bush sealing mechanism comprises a mounting plate and a plurality of sealing assemblies arranged on the mounting plate, and each sealing assembly comprises an air guide column, an ejector block, a pressing head, an elastic piece and an adjusting rod; the air guide column is arranged on the mounting plate in a penetrating mode, and the ejector block is located on the lower side of the mounting plate and connected with the lower end of the air guide column. The pressing head is installed on the lower side of the ejector block and abuts against the lower end of the air guide column, and an air channel of the pressing head communicates with an air channel of the air guide column. The elastic piece is positioned on the upper side of the mounting plate, is connected with the air guide column and is used for generating upward driving force to the air guide column; the multiple adjusting rods are arranged on the mounting plate in a penetrating mode, and the lower ends of the adjusting rods abut against the ejector blocks. Multi-angle adjustment of the ejector block can be achieved by adjusting the adjusting rod, then the angle of the pressing head is adjusted so as to adapt to multi-position posture inconsistency caused by machining, assembling and other factors, the effect of parallelism of the pressing head and the edge of a copper sleeve is achieved, and therefore the sealing performance of the contact part of the copper sleeve and the pressing head is guaranteed.

Description

Technical Field

[0001] The present invention relates to the technical field of sensor production, and particularly to a small copper sleeve sealing mechanism. Background Art

[0002] A sensor is a detection device that can sense the information to be measured and transform the sensed information into an electrical signal or other required forms of information output according to certain rules to meet the requirements of information transmission, processing, storage, display, recording, and control. In the production and manufacturing of a certain sensor, after the copper sleeve of the sensor is processed, an airtightness detection is required. The specific operation is as follows: A certain number of copper sleeves are moved to the detection station by a mechanism and are in contact with a pressure head for sealing under the upward thrust of the mechanism, and at the same time, a detection gas is introduced into the copper sleeve. Due to factors such as processing and assembly, the multi-position postures of the copper sleeve and the pressure head may be inconsistent, and the sealing performance of the contact part between the copper sleeve and the pressure head cannot be guaranteed. Summary of the Invention

[0003] The purpose of the present invention is to provide a small copper sleeve sealing mechanism for the sealing problem of the copper sleeve after processing, which can conveniently adjust the angle of the pressure head to adapt to the multi-position postures inconsistent caused by factors such as processing and assembly, so as to achieve the purpose of ensuring the parallelism between the pressure head and the edge of the copper sleeve.

[0004] The present invention is realized by the following technical solutions:

[0005] The present invention provides a small copper sleeve sealing mechanism, which includes a mounting plate and a plurality of sealing components arranged on the mounting plate. The sealing component includes a gas guiding column, a top block, a pressure head, an elastic member, and an adjusting rod; the gas guiding column is penetrated and arranged on the mounting plate, the top block is located under the mounting plate and is connected to the lower end of the gas guiding column; the pressure head is installed under the top block and abuts against the lower end of the gas guiding column, and the air passage of the pressure head is communicated with the air passage of the gas guiding column; the elastic member is located above the mounting plate and is connected to the gas guiding column for generating an upward driving force on the gas guiding column; there are a plurality of adjusting rods which are penetrated and arranged on the mounting plate, and the lower end of the adjusting rod abuts against the top block.

[0006] In the above solution, by arranging a plurality of sealing components on the mounting plate, each sealing component includes a gas guiding column, a top block, a pressure head, an elastic member, and an adjusting rod. Under the action of the elastic member, components such as the gas guiding column, the top block, and the pressure head have a tendency to move upward. By adjusting the adjusting rod to change its extending length relative to the lower side of the mounting plate, the multi-angle adjustment of the top block can be realized, and then the angle of the pressure head can be adjusted to adapt to the multi-position postures inconsistent caused by factors such as processing and assembly, so as to achieve the effect of ensuring the parallelism between the pressure head and the edge of the copper sleeve, thereby ensuring the sealing performance of the contact part between the copper sleeve and the pressure head.

[0007] As a preferred embodiment of the present invention, a plurality of limiting blocks are arranged on the lower side of the top block, and the plurality of limiting blocks jointly fix the pressing head on the top block. By arranging the limiting blocks to be fixedly connected with the top block, the flanges at both ends of the pressing head can be pressed, so as to fix the pressing head on the top block.

[0008] As a preferred embodiment of the present invention, an annular boss is arranged on the lower end of the air guide column along the circumferential direction, and a through stepped hole is arranged on the top block in a matching manner. With the above scheme, after the lower end of the air guide column enters and cooperates with the stepped hole, under the action of the elastic member, the air guide column can drive the top block to have an upward movement tendency.

[0009] As a preferred embodiment of the present invention, a limiting groove is arranged on the lower side of the top block, and the pressing head is installed in the limiting groove. By arranging the limiting groove, it can play a positioning role when the pressing head is installed, so as to ensure that the airway positions of the pressing head and the air guide column correspond; at the same time, the limiting groove can limit the deformation of the pressing head after being pressed, so as to better contact and seal with the copper sleeve.

[0010] As a preferred embodiment of the present invention, a joint for connecting with an air pipe is connected to the upper end of the air guide column. The air pipe is connected to the upper end of the air guide column through the joint, so as to realize the introduction of gas.

[0011] As a preferred embodiment of the present invention, the elastic member is a compression spring, and the compression spring is sleeved on the air guide column. By applying a certain pre-compression amount to the compression spring, an upward driving force can be provided to the air guide column, so that components such as the air guide column, the top block and the pressing head have an upward movement tendency.

[0012] As a preferred embodiment of the present invention, an elastic circlip is arranged at the upper end of the air guide column, and the upper end of the compression spring abuts against the elastic circlip through a retaining ring. With the above scheme, the upper end of the compression spring contacts the retaining ring, and the retaining ring contacts the elastic circlip to form a limit, so as to transmit the spring restoring force to the air guide column.

[0013] As a preferred embodiment of the present invention, the adjusting rod and the mounting plate are in threaded connection, and the plurality of adjusting rods are uniformly arranged relative to the top block. Since the adjusting rod and the mounting plate are in threaded connection, it is convenient to change the protruding length of the lower end of the adjusting rod relative to the lower side of the mounting plate by screwing in or out the adjusting rod, thereby changing the angle of the top block.

[0014] As a preferred embodiment of the present invention, a plurality of limiting holes are arranged on the top block, and the lower end of the adjusting rod extends into the corresponding limiting hole. In the above scheme, the lower end of each adjusting rod extends into the corresponding limiting hole, and such a design can limit the situation that the top block rotates relative to the air guide column.

[0015] As a preferred embodiment of the present invention, the indenter is a urethane rubber indenter. By using a urethane rubber indenter, when its lower surface contacts the upper end surface of the copper sleeve, its compression deformation is small, and better contact sealing performance can be achieved.

[0016] Compared with the prior art, the present invention has the following advantages and beneficial effects:

[0017] In the present invention, by providing a plurality of sealing components on the mounting plate, each sealing component includes a gas guide column, a top block, an indenter, an elastic member and an adjusting rod. Under the action of the elastic member, components such as the gas guide column, the top block and the indenter have a tendency to move upward. By adjusting the adjusting rod to change its protruding length relative to the lower side of the mounting plate, multi-angle adjustment of the top block can be achieved, and then the angle of the indenter can be adjusted to adapt to the inconsistent multi-position postures caused by factors such as processing and assembly, so as to ensure the parallelism between the indenter and the edge of the copper sleeve, thereby ensuring the sealing performance of the contact part between the copper sleeve and the indenter. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the exemplary embodiments of the present invention, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus should not be regarded as limiting the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings. In the drawings:

[0019] Figure 1 is a three-dimensional view of the small copper sleeve sealing mechanism in the present invention;

[0020] Figure 2 is another three-dimensional view of the small copper sleeve sealing mechanism in the present invention;

[0021] Figure 3 is a schematic cross-sectional structure diagram of the sealing component in the present invention;

[0022] Figure 4 is a schematic diagram of the gas guide column in the present invention;

[0023] Figure 5 is a schematic diagram of the top block in the present invention;

[0024] Figure 6 is a schematic diagram of the indenter in the present invention;

[0025] Figure 7 is a schematic diagram of the limit block in the present invention.

[0026] Marks in the drawings and corresponding component names:

[0027] 1 - mounting plate, 2 - air guide column, 21 - annular boss, 22 - flat surface, 23 - elastic snap ring, 3 - top block, 31 - stepped hole, 32 - limiting groove, 33 - limiting hole, 4 - pressing head, 5 - elastic member, 6 - adjusting rod, 7 - limiting block, 8 - joint, 9 - retaining ring, A - copper sleeve, S - sealing assembly. Detailed implementation manners

[0028] To make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below in combination with embodiments and the accompanying drawings. The illustrative embodiments and descriptions thereof of the present invention are only used to explain the present invention and are not intended to limit the present invention.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which this application belongs; the terms used herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above description of the drawings are intended to cover non-exclusive inclusion.

[0030] In the description of the embodiments of this application, technical terms such as "first" and "second" are only used to distinguish different objects and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity, specific order or primary-secondary relationship of the indicated technical features.

[0031] Referring to "embodiments" herein means that the specific features, structures or characteristics described in combination with the embodiments can be included in at least one embodiment of this application. The phrase appearing in various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0032] In the description of the embodiments of this application, the term "and / or" is only a description of the association relationship of associated objects, indicating that there can be three relationships. For example, A and / or B can mean: there is A, there is both A and B, and there is B. In addition, the character " / " in this article generally represents an "or" relationship between the associated objects before and after.

[0033] In the embodiments of this application, the same reference numerals represent the same components, and for the sake of brevity, in different embodiments, the detailed description of the same components is omitted. It should be understood that the thickness, length, width and other dimensions of various components in the embodiments of this application shown in the drawings, as well as the overall thickness, length, width and other dimensions of the integrated device, are only for illustrative purposes and should not constitute any limitation to this application.

[0034] In the description of the embodiments of the present application, the term "plurality" refers to two or more (including two). Similarly, "multiple groups" refers to two or more groups (including two groups), and "multiple pieces" refers to two or more pieces (including two pieces), unless otherwise specifically defined.

[0035] In the description of the embodiments of the present application, for technical terms such as "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., the orientation or positional relationship indicated is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the embodiments of the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the embodiments of the present application.

[0036] In the description of the embodiments of the present application, unless otherwise clearly specified and limited, technical terms such as "installation", "connection", "connection", "fixation", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can also be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to specific situations.

[0037] Please refer to Figures 1 to 7 As shown in [figure number not provided], a sealing mechanism for a small copper sleeve A provided in the embodiments of the present application includes a mounting plate 1 and a plurality of sealing components S provided on the mounting plate 1. The sealing component S includes a gas guiding column 2, a top block 3, a pressing head 4, an elastic member 5, and an adjusting rod 6. The gas guiding column 2 is disposed through the mounting plate 1, and the top block 3 is located below the mounting plate 1 and connected to the lower end of the gas guiding column 2. The pressing head 4 is mounted on the lower side of the top block 3 and abuts against the lower end of the gas guiding column 2, and the air passage of the pressing head 4 is communicated with the air passage of the gas guiding column 2. The elastic member 5 is located above the mounting plate 1 and connected to the gas guiding column 2, and is used to generate an upward driving force on the gas guiding column 2. There are a plurality of adjusting rods 6 which are disposed through the mounting plate 1, and the lower ends of the adjusting rods 6 abut against the top block 3.

[0038] In this embodiment, five sealing components S are sequentially arranged at intervals on the mounting plate 1 in the same direction. Under the upward thrust of the mechanism (not shown in the figure) below the five copper sleeves A, the five copper sleeves A are respectively in contact with the respective pressing heads 4 for sealing. At the same time, the detection gas is introduced into the copper sleeves A through the air passages of the gas guiding column 2 and the pressing heads 4, and five copper sleeves A can be detected at one time.

[0039] When factors such as processing and assembly cause the upper end surface of the copper sleeve A to be non-parallel to the lower surface of the pressure head 4 and the sealing performance of the contact part between the copper sleeve A and the pressure head 4 cannot be guaranteed, the protruding length of the adjusting rod 6 relative to the lower side of the mounting plate 1 can be changed by adjusting the adjusting rod 6. For example, if the protruding length of the adjusting rod 6 on one side is extended, the top block 3 on that side will be pushed downward, and then the inclination angle of the pressure head 4 relative to the mounting plate 1 will change. Therefore, when the upper end surface of the copper sleeve A is non-parallel to the lower surface of the pressure head 4, the protruding length of some adjusting rods 6 can be adjusted to make the edge of the pressure head 4 and the copper sleeve A parallel.

[0040] In this application, a plurality of sealing components S are arranged on the mounting plate 1. Each sealing component S includes a gas guiding column 2, a top block 3, a pressure head 4, an elastic member 5 and an adjusting rod 6. Under the action of the elastic member 5, components such as the gas guiding column 2, the top block 3 and the pressure head 4 have a tendency to move upward. By adjusting the adjusting rod 6 to change its protruding length relative to the lower side of the mounting plate 1, multi-angle adjustment of the top block 3 can be achieved, and then the angle of the pressure head 4 can be adjusted to adapt to the inconsistent multi-position postures caused by factors such as processing and assembly, so as to ensure the parallelism between the edge of the pressure head 4 and the copper sleeve A, thereby ensuring the sealing performance of the contact part between the copper sleeve A and the pressure head 4.

[0041] In the solution of this application, since the top block 3 in each sealing component S can be adjusted at multiple angles, when detecting multiple copper sleeves A simultaneously, the angle of the pressure head 4 can be adjusted separately according to the actual posture, so that the upper end surface of each copper sleeve A is parallel to the lower end surface of each pressure head 4, thereby ensuring the sealing performance of the contact part between the copper sleeve A and the pressure head 4. Moreover, with the structural design in this application, the adjustment of the angle of the pressure head 4 is simple and convenient.

[0042] It should be noted that since the gas guiding column 2 will also tilt relative to the mounting plate 1 when adjusting the angle of the top block 3, there must be a certain gap between the outer peripheral surface of the gas guiding column 2 and the through hole on the mounting plate 1 in this application, so as to avoid the situation of jamming between the gas guiding column 2 and the mounting plate 1 when adjusting the angle of the pressure head 4.

[0043] According to some embodiments of this application, a plurality of limiting blocks 7 are arranged on the lower side of the top block 3, and the plurality of limiting blocks 7 jointly fix the pressure head 4 on the top block 3. Specifically, in this embodiment, two limiting blocks 7 are oppositely arranged on the lower side of the top block 3. The limiting block 7 has an L-shaped structure and is fixedly connected to the top block 3 by screws, and can press the flanges at both ends of the pressure head 4, thereby fixing the pressure head 4 on the top block 3.

[0044] According to some embodiments of the present application, an annular boss 21 is circumferentially arranged at the lower end of the air guiding column 2, and a through stepped hole 31 is cooperatively arranged on the top block 3. Specifically, the stepped hole 31 on the top block 3 has two different hole diameters. Among them, the hole diameter of the section close to the mounting plate 1 is adapted to the body of the air guiding column 2, and the hole diameter of the section close to the pressure head 4 is adapted to the annular boss 21. After the lower end of the air guiding column 2 enters and cooperates with the stepped hole 31, under the action of the elastic member 5, the air guiding column 2 can drive the top block 3 to have an upward movement tendency.

[0045] In order to enable the air passage to be connected between the pressure head 4 and the air guiding column 2 and prevent air leakage after the pressure head 4 is installed on the top block 3, the lower end face of the air guiding column 2 can be designed to protrude slightly from the contact surface between the top block 3 and the pressure head 4. In this way, when the pressure head 4 is installed, after the pressure head 4 contacts the lower side of the top block 3, the pressure head 4 can generate a squeezing force with the lower end face of the air guiding column 2, thereby forming a sealing effect and preventing air leakage.

[0046] According to some embodiments of the present application, a limiting groove 32 is arranged on the lower side of the top block 3, and the pressure head 4 is installed in the limiting groove 32. Specifically, the width between the two sides of the pressure head 4 is adapted to the width of the limiting groove 32, which can play a positioning role when the pressure head 4 is installed, thereby ensuring the corresponding position of the air passage between the pressure head 4 and the air guiding column 2; at the same time, installing the pressure head 4 in the limiting groove 32 can limit the deformation of the pressure head 4 after being pressed, so as to better contact and seal with the copper sleeve A.

[0047] It should be noted that in this embodiment, the limiting block 7 is also placed in the above-mentioned limiting groove 32 of the top block 3, which can limit the installation of the limiting block 7 and prevent the limiting block 7 from rotating relative to the top block 3.

[0048] According to some embodiments of the present application, a joint 8 for connecting with a trachea (not shown in the figure) is threadedly connected to the upper end of the air guiding column 2. In this way, the detection gas enters the air passage of the air guiding column 2 through the trachea and the joint 8, and then enters the copper sleeve A through the air passage of the pressure head 4.

[0049] To facilitate the connection between the joint 8 and the upper end of the air guiding column 2, flat surfaces 22 are symmetrically arranged on the outer peripheral wall of the air guiding column 2, so that tools such as wrenches can be clamped on the flat surfaces 22, and then the joint 8 is screwed onto the upper end of the air guiding column 2 to realize the connection between the joint 8 and the air guiding column 2.

[0050] According to some embodiments of the present application, the elastic member 5 is a compression spring, and the compression spring is sleeved on the air guiding column 2. Specifically, the lower end of the compression spring abuts against the upper side of the mounting plate 1, and the upper end of the compression spring is connected to the air guiding column 2. By applying a certain pre-compression amount to the compression spring, an upward driving force can be provided to the air guiding column 2, so that components such as the air guiding column 2, the top block 3, and the pressure head 4 have an upward movement tendency.

[0051] According to some embodiments of the present application, an elastic snap ring 23 is provided at the upper end of the air guide column 2, and the upper end of the compression spring abuts against the elastic snap ring 23 through a retaining ring 9. In order to connect the upper end of the compression spring to the air guide column 2, a groove is formed on the outer peripheral wall of the upper end of the air guide column 2, and the elastic snap ring 23 is installed. At the same time, the retaining ring 9 is provided, so that the upper end of the compression spring contacts the retaining ring 9, and the retaining ring 9 contacts the elastic snap ring 23 to form a limit, thereby transmitting the spring restoring force to the air guide column 2.

[0052] According to some embodiments of the present application, the adjusting rod 6 is threadedly connected to the mounting plate 1, and a plurality of the adjusting rods 6 are uniformly arranged relative to the top block 3. Since the adjusting rod 6 is threadedly connected to the mounting plate 1, it is convenient to change the protruding length of the lower end of the adjusting rod 6 relative to the lower side of the mounting plate 1 by screwing in or out the adjusting rod 6, thereby changing the angle of the top block 3.

[0053] Each sealing assembly S is provided with 4 adjusting rods 6. After the 4 adjusting rods 6 are uniformly arranged relative to the top block 3, specifically, the 4 adjusting rods 6 can act on the four corners of the top block 3, so that the top block 3 can be adjusted at multiple angles by rotating one or several of the adjusting rods 6. Preferably, the adjusting rod 6 can be an ordinary screw.

[0054] According to some embodiments of the present application, a plurality of limiting holes 33 are provided on the top block 3, and the lower end of the adjusting rod 6 extends into the corresponding limiting hole 33. Specifically, the number and distribution positions of the limiting holes 33 on the top block 3 correspond to the number and distribution positions of the adjusting rods 6, so that the lower end of each adjusting rod 6 can extend into the corresponding limiting hole 33, and this design can limit the rotation of the top block 3 relative to the air guide column 2.

[0055] According to some embodiments of the present application, the pressing head 4 is a polyurethane pressing head 4. Polyurethane, also known as polyurethane PU elastomer, is a new type of material with good strength and small compression deformation, which is between plastic and rubber, having the rigidity of plastic and the elasticity of rubber. By using the polyurethane pressing head 4, when its lower surface contacts the upper end surface of the copper sleeve A, its compression deformation is small, and better contact sealing performance can be achieved.

[0056] Specific process flow: The copper sleeve A approaches the urethane rubber pressing head 4 under the upward thrust of the lower mechanism (not shown in the figure); to ensure the sealing performance of the contact part between the urethane rubber pressing head 4 of multiple groups (5 groups in the figure) of the sealing assembly S and the upper edge of the copper sleeve A, the parallelism between the urethane rubber pressing head 4 and the edge of the copper sleeve A must be ensured. Under the action of the elastic member 5 (i.e., the compression spring), accessories such as the air guide column 2, the top block 3, and the urethane rubber pressing head 4 tend to move upward; the 4 adjusting rods 6 (i.e., screws) act on the four corners of the top block 3, and by rotating the screws, multi-angle adjustment of the top block 3 can be achieved, and then the angle of the urethane rubber pressing head 4 can be adjusted to adapt to the inconsistent multi-position postures caused by factors such as processing and assembly, so as to achieve the purpose of ensuring the parallelism between the urethane rubber pressing head 4 and the edge of the copper sleeve A.

[0057] The specific embodiments described above have further elaborated on the purpose, technical solutions, and beneficial effects of the present invention. It should be understood that the above are only specific embodiments of the present invention and are not used to limit the protection scope of the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A small copper sleeve sealing mechanism, characterized in that: It includes a mounting plate and a plurality of sealing components arranged on the mounting plate, the sealing components including an air guide column, a top block, a pressure head, an elastic member and an adjusting rod; the air guide column is arranged through the mounting plate, the top block is located on the lower side of the mounting plate and is connected to the lower end of the air guide column; the pressure head is installed on the lower side of the top block and abuts against the lower end of the air guide column, and the air passage of the pressure head is connected with the air passage of the air guide column; the elastic member is located on the upper side of the mounting plate and is connected to the air guide column, and is used to generate an upward driving force for the air guide column; there are a plurality of adjusting rods and they are arranged through the mounting plate, and the lower end of the adjusting rod abuts against the top block.

2. The small copper sleeve sealing mechanism according to claim 1 is characterized in that: A plurality of limit blocks are arranged at the lower side of the top block, and the plurality of limit blocks jointly fix the pressure head on the top block.

3. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The lower end of the air guide column is provided with an annular boss along the circumferential direction, and the top block is provided with a penetrating step hole in cooperation therewith.

4. The small copper sleeve sealing mechanism according to claim 1, characterized in that: A limiting groove is arranged at the lower side of the top block, and the pressure head is installed in the limiting groove.

5. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The upper end of the air guide column is connected with a joint for connecting with an air pipe.

6. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The elastic member is a compression spring, and the compression spring is sleeved on the air guide column.

7. The small copper sleeve sealing mechanism according to claim 6, characterized in that: An elastic clamp ring is arranged at the upper end of the air guide column, and the upper end of the compression spring abuts against the elastic clamp ring through a retaining ring.

8. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The adjusting rod is threadedly connected to the mounting plate, and a plurality of the adjusting rods are evenly arranged relative to the top block.

9. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The top block is provided with a plurality of limiting holes, and the lower end of the adjusting rod extends into the corresponding limiting holes.

10. The small copper sleeve sealing mechanism according to claim 1, characterized in that: The pressure head is a high-strength rubber pressure head.

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