Elastic tensioning sleeve extracting tool

Abstract

The invention discloses an elastic tensioning sleeve extracting tool, and belongs to the field of mechanical tool equipment. The clamping assembly is connected to the end of the supporting component, the clamping assembly has an opening state and a closing state, and when the clamping assembly is in the closing state, the clamping assembly can stretch into an inner hole of the elastic tensioning sleeve; when the clamping assembly extends into the inner hole of the elastic tensioning sleeve and is switched from the folded state to the unfolded state, the clamping assembly and the elastic tensioning sleeve are clamped and fixed. The control assembly is located on the supporting component and used for controlling the clamping assembly to be switched from the folded state to the unfolded state. The tool has the advantages that the scrapping risk of the height control valve caused by the problem that an inner hole is scratched when a pair of nipper pliers or an L-shaped extraction tool is used for extraction is reduced, the extraction efficiency of the elastic tensioning sleeve is improved, and meanwhile the tool can be suitable for disassembly and assembly operation of the elastic tensioning sleeve.

Description

Technical Field

[0001] The invention belongs to the field of mechanical tooling equipment, and in particular relates to an elastic tension sleeve extraction tooling. Background Art

[0002] During the self-maintenance project of the height control valve, it is necessary to replace the metal wire screens at the inlet and outlet of the height control valve. Before replacement, it is necessary to remove the metal wire screen fixing ring (elastic tension sleeve). Figure 1 The elastic tension sleeve currently used includes a sleeve body 100, and the sleeve body 100 is provided with an opening 101 arranged along the axial direction of the sleeve body 100. Two through holes 102 are arranged on the side wall of the sleeve body 101, and the two through holes 102 are arranged coaxially. The distance between the two through holes 102 and the opening 101 is the same.

[0003] The existing operation method is to use needle-nosed pliers or L-shaped extraction needles to pull it out. Because the diameter of the height control valve's air inlet and outlet is only 13mm, and the elastic tension sleeve is a thin-walled circular sleeve with a wall thickness of 1.25mm, the inner hole space is narrow, and the use of needle-nosed pliers to extract it has the characteristics of no clamping position and difficult extraction. When using an L-shaped extraction needle, the inner hole is scratched because the wall thickness of the elastic tension sleeve is too thin, causing damage to the height control valve and scrapping. In addition, the force is uneven during the extraction process, which is time-consuming and labor-intensive.

[0004] In view of this, the present invention is proposed. Summary of the invention

[0005] In order to solve at least part of the above-mentioned problems, the present invention provides an elastic tension sleeve extraction tool, which reduces the risk of scrapping the height control valve due to scratches on the inner hole caused by using needle-nosed pliers or L-shaped extraction pliers, improves the extraction efficiency of the elastic tension sleeve, and is suitable for the disassembly and assembly operations of the elastic tension sleeve.

[0006] The basic concept of the technical solution adopted in the present invention is:

[0007] An elastic tension sleeve extraction tool, comprising:

[0008] Support components;

[0009] A clamping assembly is connected to the end of the supporting component, and the clamping assembly includes an open state and a retracted state. When the clamping assembly is in the retracted state, the clamping assembly can extend into the inner hole of the elastic tension sleeve; when the clamping assembly extends into the inner hole of the elastic tension sleeve and switches from the retracted state to the open state, the clamping assembly is clamped and fixed with the elastic tension sleeve;

[0010] The control component is located on the supporting component and is used to control the clamping component to switch from a folded state to an open state.

[0011] Furthermore, the clamping assembly includes:

[0012] A fixed arm, fixed on the supporting member;

[0013] A movable arm is arranged side by side with the fixed arm and is rotatably connected to the supporting member;

[0014] The control assembly can extend between the fixed arm and the movable arm and push the movable arm to rotate toward a side away from the fixed arm so that the fixed arm and the movable arm are relatively opened;

[0015] Preferably, the clamping assembly further includes a first resetting elastic body, wherein the first resetting elastic body is located between the movable arm and the supporting component, and when the fixed arm and the movable arm are relatively opened, the first resetting elastic body is compressed to store force.

[0016] Furthermore, a side surface of the fixed arm away from the movable arm is a semicircular surface, and / or a side surface of the movable arm away from the fixed arm is a semicircular surface.

[0017] Furthermore, pins are provided on surfaces of the fixed arm and the movable arm that are away from each other.

[0018] Furthermore, a slideway is provided inside the supporting component, the control assembly is slidably connected to the slideway, and one of the passage openings of the slideway is located between the movable arm and the fixed arm.

[0019] Furthermore, the control component includes a push shaft slidably connected to the slideway, the length of the push shaft is longer than the length of the slideway, and one end of the push shaft away from the clamping component extends to the outside of the supporting component.

[0020] Furthermore, a force-applying handle is provided at one end of the pushing shaft extending to the outside of the supporting component, and the force-applying handle is perpendicular to the pushing shaft;

[0021] Preferably, the support component is provided with a holding handle parallel to the pushing handle.

[0022] Furthermore, the control component also includes a second reset elastic body, which is connected to the push shaft and the support component. When the push shaft extends between the fixed arm and the movable arm, the second reset elastic body is compressed to store force.

[0023] Furthermore, the supporting component includes a main body and a pressure cover, the control assembly is located between the main body and the pressure cover, the main body and the pressure cover are detachably connected, and the slide is located on a side surface of the main body facing the pressure cover.

[0024] Furthermore, a mounting cavity is provided on a surface of one side of the main body facing the pressure cover, the mounting cavity is located on the path of the slideway, the mounting cavity is connected to the slideway, and the second reset elastic body is located in the mounting cavity.

[0025] After adopting the above technical scheme, the present invention has the following beneficial effects compared with the prior art.

[0026] The present invention extracts the elastic tension sleeve by means of an extraction tool, and pulls the elastic tension sleeve out of the inner hole smoothly, thereby solving the problem of difficulty in extracting the elastic tension sleeve of the metal wire screen at the air inlet and outlet of the height control valve of the EMU self-maintenance component, thereby achieving the extraction of the elastic tension sleeve in a narrow space.

[0027] By using the inner hole of the elastic tension sleeve for positioning and increasing the pulling force by virtue of the wall thickness of the elastic tension sleeve for extraction, the elastic tension sleeve can be easily taken out of the inner hole. The elastic tension sleeve can be quickly fixed and quickly loosened by resetting the movable arm and the elastic reset member.

[0028] By applying torque by hand, the reliability of extraction is guaranteed, the tensioning force is controllable, the operation is convenient, and the product appearance can be protected.

[0029] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are part of the present invention and are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention, but do not constitute an improper limitation of the present invention. Obviously, the drawings described below are only some embodiments. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. In the accompanying drawings:

[0031] Figure 1 It is a schematic diagram of the structure of the elastic tension sleeve used in the height control valve;

[0032] Figure 2 It is a structural schematic diagram of the elastic tension sleeve extraction tooling when the clamping assembly of the present invention is in a retracted state;

[0033] Figure 3 It is a structural schematic diagram of the head end of the elastic tension sleeve extraction tooling when the clamping assembly of the present invention is in a retracted state;

[0034] Figure 4 It is a structural schematic diagram of the elastic tension sleeve extraction tooling when the clamping assembly of the present invention is in an open state;

[0035] Figure 5 It is an exploded schematic diagram of the elastic tension sleeve extraction tooling of the present invention;

[0036] Figure 6 It is a schematic diagram of the connection structure between the main body of the support component and the control assembly of the present invention.

[0037] In the figure: 1. supporting component; 11. slide; 12. main body; 13. holding handle; 14. recess; 15. pressure cover; 151. extension portion; 16. installation cavity; 2. clamping assembly; 21. fixed arm; 22. movable arm; 23. first return spring; 24. pin shaft; 3. control assembly; 31. push shaft; 311. flange; 32. force handle; 33. second return spring; 100. sleeve; 101. opening; 102. through hole.

[0038] It should be noted that these drawings and textual descriptions are not intended to limit the conceptual scope of the present invention in any way, but are intended to illustrate the concept of the present invention for those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0039] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. The following embodiments are used to illustrate the present invention but are not used to limit the scope of the present invention.

[0040] In the description of the present invention, it should be noted that the directions or positional relationships indicated by terms such as “upper”, “lower”, “front”, “back”, “left”, “right”, “vertical”, “inside” and “outside” are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0041] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0042] like Figures 2 to 6 As shown, the present invention discloses an elastic tension sleeve extraction tool.

[0043] The elastic tension sleeve extraction tool comprises a support component 1 and a clamping assembly 2 connected to the support component 1 and located at the end of the support component 1. The clamping assembly 2 comprises two states: the first state is an open state, and the second state is a retracted state. When the clamping assembly 2 is in the retracted state, the clamping assembly 2 can extend into the inner hole of the elastic tension sleeve. A control assembly 3 is arranged on the support component 1, and the control assembly 3 is used to control the clamping assembly 2 to switch from the retracted state to the open state.

[0044] When connecting the clamping assembly 2 to the elastic tension sleeve, first put the clamping assembly 2 in the retracted state. When the clamping assembly 2 is in the retracted state, extend the clamping assembly 2 into the inner hole of the elastic tension sleeve. After the clamping assembly 2 extends into the inner hole of the elastic tension sleeve, the clamping assembly 2 is switched from the retracted state to the open state through the control of the control assembly 3. When the clamping assembly 2 is in the open state, the clamping assembly 2 and the elastic tension sleeve are clamped and fixed. When it is necessary to remove the clamping assembly 2 from the inner hole of the elastic tension sleeve, the control assembly 3 releases the control of the clamping assembly 2, restores the clamping assembly 2 to the retracted state, and then removes the clamping assembly 2 from the inner hole of the elastic tension sleeve.

[0045] In this embodiment, the end of the support component 1 connected to the clamping component 2 is the head end of the support component 1, and the end of the support component 1 away from the clamping component 2 is the tail end of the support component 1. The control component 3 is slidably connected to the support component 1, and the moving direction of the control component 3 is set from the head end of the support component 1 to the tail end of the support component 1. When the control component 3 moves toward the head end of the support component 1, the control component 3 controls the clamping component 2 to switch from the retracted state to the open state. When the control component 3 moves toward the tail end of the support component 1, the clamping component 2 gradually resets and returns to the retracted state.

[0046] Specifically, the clamping assembly 2 includes a fixed arm 21 fixed to the end surface of the front end of the supporting component 1 and a movable arm 22 rotatably connected to the front end of the supporting component 1 through a hinge, and the movable arm 22 and the fixed arm 21 are arranged side by side and spaced apart.

[0047] The connecting hinge connecting the movable arm 22 and the supporting part 1 is located in the middle area between the two ends of the movable arm 22, so that the movable arm 22 forms a seesaw structure. One end of the movable arm 22 is located at the side of the supporting part 1, and the other end of the movable arm 22 is located in front of the head end of the supporting part 1. The end of the movable arm 22 located in front of the head end of the supporting part 1 is the front end of the movable arm 22, and the end of the movable arm 22 located at the side of the supporting part 1 is the rear end of the movable arm 22.

[0048] The clamping assembly 2 also includes a first return spring 23 located between the rear end of the movable arm 22 and the supporting component 1 . One end of the first return spring 23 is relatively fixed to the rear end of the movable arm 22 , and the other end of the first return spring 23 is relatively fixed to the supporting component 1 .

[0049] When the movable arm 22 rotates to a state parallel to the fixed arm 21, the rear end of the movable arm 22 applies pressure to the first return spring 23, so that the first return spring 23 is in a state of being compressed and storing force. When the first return spring 23 is in a non-compressed state, the first return spring 23 supports the rear end of the movable arm 22, so that the front end of the movable arm 22 is close to the fixed arm 21 and an angle is formed between the movable arm 22 and the fixed arm 21.

[0050] In this embodiment, the side of the fixed arm 21 facing away from the movable arm 22 is a semicircular arc surface. The radius of the semicircular arc surface is adapted to the radius of the inner hole of the elastic tension sleeve. When the fixed arm 21 is inserted into the inner hole of the elastic tension sleeve, the side surface of the fixed arm 21 facing away from the movable arm 22 fits with the hole wall of the inner hole of the elastic tension sleeve, thereby increasing the contact area between the fixed arm 21 and the elastic tension sleeve. Alternatively, the side surface of the movable arm 22 facing away from the fixed arm 21 is also a semicircular arc surface, and the radius of the semicircular arc surface is adapted to the radius of the inner hole of the elastic tension sleeve. After the movable arm 22 is inserted into the inner hole of the elastic tension sleeve and is clamped and fixed with the elastic tension sleeve, the side surface of the movable arm 22 facing away from the fixed arm 21 fits with the hole wall of the inner hole of the elastic tension sleeve, thereby increasing the contact area between the movable arm 22 and the elastic tension sleeve.

[0051] More preferably, a side surface of the fixed arm 21 facing away from the movable arm 22 and a side surface of the movable arm 22 facing away from the fixed arm 21 are both semicircular arc surfaces.

[0052] Specifically, a pin 24 is provided on the surface of the side opposite to the movable arm 22 and the fixed arm 21, and the pin 24 on the movable arm 22 is integrally formed with the movable arm 22 or fixed by welding. The pin 24 on the fixed arm 21 is integrally formed with the fixed arm 21 or fixed by welding. The pins 24 are all cylindrical structures. When the movable arm 22 and the fixed arm 21 are in a relatively open state, the pins on the fixed arm 21 are coaxially arranged with the pins 24 on the movable arm 22. The diameter of the pin 24 is smaller than the aperture of the through hole 102, so that the pin 24 can extend into the through hole 102 of the elastic tension sleeve.

[0053] Specifically, a slideway 11 is provided inside the support component 1, which runs through the support component 1 from the rear end of the support component 1 to the front end of the support component 1, and the passageway 11 communicates with the front end end surface of the support component 1 and is located between the movable arm 22 and the fixed arm 21. The control component 3 is slidably connected inside the slideway 11. One end of the control component 3 located at the rear end of the support component 1 extends to the outside of the rear end of the support component 1 and a moving distance is left between the rear end of the support component 1, and the left distance enables the control component 3 to move toward the front end of the support component 1 and push the movable arm 22 to rotate.

[0054] When force is applied to the control assembly 3 and the control assembly 3 moves toward the head end of the support component 1, the control assembly 3 extends out from the passage opening of the slideway 11 located on the head end surface of the support component 1. The control assembly 3 extending out from the passage opening pushes the movable arm 22, causing the front end of the movable arm 22 to rotate toward the side away from the fixed arm 21, so that the fixed arm 21 and the movable arm 22 are relatively opened. When the fixed arm 21 and the movable arm 22 are relatively opened, this state is the opened state of the clamping assembly 2.

[0055] When the control component 3 releases the force applied to the movable arm 22 and moves toward the rear end of the support component 1, the control component 3 gradually retracts into the interior of the support component 1. At this time, the first return spring 23 pushes the rear end of the movable arm 22, so that the front end of the movable arm 22 approaches the direction of the fixed arm 21 until the first return spring 23 no longer applies force to the rear end of the movable arm 22. At this time, the movable arm 22 and the fixed arm 21 are relatively retracted. This state is the retracted state of the clamping component 2.

[0056] The control assembly 3 includes a push shaft 31 slidably connected to the inside of the slideway 11, and the length of the push shaft 31 is longer than the length of the slideway 11. A force handle 32 is provided at one end of the push shaft 31 located at the rear end of the support component 1, and the force handle 32 is vertically arranged with the push shaft 31. The middle position of the force handle 32 in the length direction is connected to the push shaft 31. The force handle 32 and the push shaft 31 are integrally formed.

[0057] A second return spring 33 is provided between the push shaft 31 and the support component 1, one end of the second return spring 33 is relatively fixed to the push shaft 31, and the other end of the second return spring 33 is relatively fixed to the support component 1. When a force is applied to the push shaft 31 and the push shaft 31 moves toward the head end of the support component 1, the second return spring 33 is in a compressed force storage state. When the force applied to the push shaft 31 is released, the second return spring 33 is released and drives the push shaft 31 to move toward the tail end of the support component 1.

[0058] Specifically, the supporting component 1 includes a main body 12 in the shape of a rectangle. It should be noted that the shape of the main body 12 is not limited to a rectangle, and may also be a cylinder or other shapes.

[0059] The clamping assembly 2 is connected to the main body 12 and is located at one end of the main body 12 in the length direction. The end of the main body 12 connected to the clamping assembly 2 is the head end of the main body 12, and the end of the main body 12 away from the clamping assembly 2 is the tail end of the main body 12.

[0060] A gripping handle 13 is disposed at the rear end of the main body 12, and the gripping handle 13 is disposed perpendicularly to the main body 12. The middle position of the gripping handle 13 in the length direction is connected to the main body 12. The gripping handle 13 and the main body 12 are integrally formed.

[0061] A concave platform 14 is provided on the side wall of one side of the main body 12 and the gripping handle 13, and a pressure cover 15 is provided at the concave platform 14. The pressure cover 15 is pressed on the concave platform 14 and fixed to the main body 12 by bolts. When the pressure cover 15 is pressed on the concave platform 14, the surface of the pressure cover 15 is flush with the surface of the main body 12.

[0062] The concave platform 14 extends onto the gripping handle 13. The pressure cover 15 is provided with an extension portion 151 extending onto the gripping handle 13, and the extension portion 151 is integrally formed with the pressure cover 15. The shape of the extension portion 151 matches the shape of the area where the concave platform 14 extends onto the gripping handle 13. When the extension portion 151 is pressed on the area where the concave platform 14 extends onto the gripping handle 13, the surface of the extension portion 151 is flush with the surface of the gripping handle 13.

[0063] Specifically, the slide 11 is located on the concave platform 14, and a mounting cavity 16 is also provided on the concave platform 14. The mounting cavity 16 is located on the extension path of the slide 11. The width of the mounting cavity 16 is wider than the width of the slide 11, and the center line of the mounting cavity 16 in the width direction coincides with the center line of the width direction of the slide 11. The connection position between the mounting cavity 16 and the slide 11 forms a step.

[0064] The second return spring 33 of the control assembly 3 is located in the installation cavity 16 , and the second return spring 33 is sleeved on the outside of the pushing shaft 31 .

[0065] Specifically, a flange 311 extending outward is provided on the push shaft 31, and the flange 311 is integrally formed with the push shaft 31. The second return spring 33 is located between the flange 311 and the step formed between the mounting cavity 16 and the slideway 11. The second return spring 33 is located on the side of the flange 311 facing the clamping assembly 2. When force is applied to the push shaft 31 and the push shaft 31 is moved in the direction where the clamping assembly 2 is located, the flange 311 transfers force to the second return spring 33, and the second return spring 33 is compressed and stores force. When the force applied to the push shaft 31 is released, the second return spring 33 pushes the flange 311, driving the push shaft 31 to move away from the clamping assembly 2 until the push shaft 31 is completely retracted into the slideway 11.

[0066] The second return spring 33 and the flange 311 are fixedly connected or abutted against each other, as well as the second return spring 33 and the step formed between the installation cavity 16 and the slideway 11 .

[0067] When extracting the elastic tension sleeve, firstly, the clamping assembly 2 is in a folded state, and then the folded clamping assembly 2 is inserted into the inner hole of the elastic tension sleeve. After the clamping assembly 2 is inserted into the inner hole of the elastic tension sleeve, the pin 24 on the fixed arm 21 is aligned with one of the through holes 102 on the elastic tension sleeve, and the pin 24 is inserted into the opposite through hole 102.

[0068] By applying force to the control component 3, the control component 3 is moved toward the head end of the support component 1. When the control component 3 moves toward the head end of the support component 1, the push shaft 31 of the control component 3 pushes the movable arm 22, so that the front end of the movable arm 22 rotates toward the side away from the fixed arm 21, and the pin shaft 24 on the movable arm 22 is inserted into another through hole 102.

[0069] When the pin 24 of the movable arm 22 is inserted into the through hole 102, the extraction tool can be forced as a whole to extract the elastic tension sleeve. After the elastic tension sleeve is extracted, the force applied to the control component 3 is released, and the second reset spring 33 releases the stored force to push the push shaft 31 to move toward the tail end of the support component 1. When the push shaft 31 moves toward the tail end of the support component 1, the first reset spring 23 pushes the movable arm 22 to rotate, so that the front end of the movable arm 22 rotates toward the direction of the fixed arm 21, so that the clamping component 2 is in a retracted state. When the clamping component 2 is in the retracted state, the clamping component 2 is removed from the inner hole of the elastic tension sleeve to separate the extraction tool from the elastic tension sleeve.

[0070] The above description is only a preferred embodiment of the present invention, and does not limit the present invention in any form. Although the present invention has been disclosed as a preferred embodiment as above, it is not used to limit the present invention. Any technician familiar with this patent can make some changes or modifications to equivalent embodiments of equivalent changes by using the technical content suggested above without departing from the scope of the technical solution of the present invention. The implementation scheme in the above embodiment can also be further combined or replaced. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the present invention without departing from the content of the technical solution of the present invention still falls within the scope of the solution of the present invention.

Claims

1. An elastic tension sleeve extraction tool, characterized in that: Included are: Support member (1); A clamping assembly (2) is connected to the end of the supporting component (1), and the clamping assembly (2) includes an open state and a retracted state. When the clamping assembly (2) is in the retracted state, the clamping assembly (2) can extend into the inner hole of the elastic tension sleeve; when the clamping assembly (2) extends into the inner hole of the elastic tension sleeve and switches from the retracted state to the open state, the clamping assembly (2) is clamped and fixed with the elastic tension sleeve; The control component (3) is located on the supporting component (1) and is used to control the clamping component (2) to switch from a retracted state to an open state.

2. The elastic tension sleeve extraction tool according to claim 1, characterized in that: The clamping assembly (2) comprises: A fixed arm (21) fixed on the supporting component (1); A movable arm (22) is arranged side by side with the fixed arm (21) and is rotatably connected to the supporting component (1); The control component (3) is capable of extending between the fixed arm (21) and the movable arm (22) and pushing the movable arm (22) to rotate toward a side away from the fixed arm (21) so that the fixed arm (21) and the movable arm (22) are relatively opened; Preferably, the clamping assembly (2) further comprises a first resetting elastic body, wherein the first resetting elastic body is located between the movable arm (22) and the supporting component (1), and when the fixed arm (21) and the movable arm (22) are relatively opened, the first resetting elastic body is compressed to store force.

3. The elastic tension sleeve extraction tool according to claim 2, characterized in that: A side surface of the fixed arm (21) facing away from the movable arm (22) is a semi-circular arc surface, and / or a side surface of the movable arm (22) facing away from the fixed arm (21) is a semi-circular arc surface.

4. An elastic tension sleeve extraction tool according to claim 2 or 3, characterized in that: Pin shafts (24) are provided on surfaces of the fixed arm (21) and the movable arm (22) that are separated from each other.

5. The elastic tension sleeve extraction tool according to claim 2, characterized in that: A slideway (11) is provided inside the support component (1), and the control component (3) is slidably connected to the slideway (11), and one of the passage openings of the slideway (11) is located between the movable arm (22) and the fixed arm (21).

6. The elastic tension sleeve extraction tool according to claim 5, characterized in that: The control component (3) comprises a push shaft (31) slidably connected in the slideway (11); the length of the push shaft (31) is longer than the length of the slideway (11); and one end of the push shaft (31) away from the clamping component (2) extends to the outside of the support component (1).

7. The elastic tension sleeve extraction tool according to claim 6, characterized in that: A force-applying handle (32) is provided at one end of the pushing shaft (31) extending to the outside of the supporting component (1), and the force-applying handle (32) is perpendicular to the pushing shaft (31); Preferably, the support component (1) is provided with a holding handle (13) parallel to the pushing handle.

8. The elastic tension sleeve extraction tool according to claim 6, characterized in that: The control assembly (3) also includes a second resetting elastic body, which is connected to the push shaft (31) and the support component (1). When the push shaft (31) extends between the fixed arm (21) and the movable arm (22), the second resetting elastic body is compressed to store force.

9. The elastic tension sleeve extraction tool according to claim 8, characterized in that: The support component (1) comprises a main body (12) and a pressure cover (15), the control assembly (3) is located between the main body (12) and the pressure cover (15), the main body (12) and the pressure cover (15) are detachably connected, and the slideway (11) is located on a side surface of the main body (12) facing the pressure cover (15).

10. The elastic tension sleeve extraction tool according to claim 9, characterized in that: A mounting cavity (16) is also provided on a surface of one side of the main body (12) facing the pressure cover (15); the mounting cavity (16) is located on the path of the slideway (11); the mounting cavity (16) is connected to the slideway (11); and the second reset elastic body is located in the mounting cavity (16).

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