A multi-seal cavity buffer strut floating piston dismounting tool

Abstract

A kind of multi-sealing cavity buffer strut in floating piston dismounting tool, including spring rod, tightening screw rod, torsional spring, fastener, spring, screw, spring rod base, lock pin, spring base and lengthening rod, wherein, recess for placing spring rod, mounting hole for inserting fastener fastening spring rod and stop bench for stopping spring rod are arranged on the upper portion of spring rod base, tightening screw rod is fixed on fastener, torsional spring is nested on spring rod;Lock pin is arranged below spring rod and is in contact with spring rod, spring upper end is installed on lock pin, spring lower end is installed on spring base that extends into lock pin, spring base is fixed on spring rod base by screw;Lengthening rod is arranged on the bottom of spring rod base.The utility model utilizes torsional spring structure to cooperate with movable lock structure to realize the quick switching and locking of spring rod position;Torsional spring structure resets and drives spring rod transversely, provides mechanical support body for floating piston dismounting, finally realizes the high efficiency, stability of floating piston dismounting.

Description

Technical Field

[0001] This utility model relates to the field of disassembly tooling technology, and in particular to a disassembly tooling for a floating piston in a multi-sealed cavity buffer support. Background Technology

[0002] Multi-sealed cavity buffer support is a buffer device that combines high-pressure and low-pressure cavities to adapt to different load conditions. Generally, the high-pressure cavity and low-pressure cavity are separated by a floating piston and an internal core rod. The inner and outer rings of the floating piston form a movable sealing structure with the core rod and outer cylinder, respectively, and compress the high-pressure cavity space under load during the buffering process.

[0003] Due to the structural characteristics and performance requirements of multi-cavity buffer supports, the floating piston is generally limited only by the shoulder feature on the core rod in the axial direction. During installation, the core rod can be pushed into the cylinder. However, when multi-cavity buffer supports are disassembled for troubleshooting, end-of-life inspections, or other business needs, the floating piston can easily become stuck inside the outer cylinder due to contact stress caused by the compression deformation of the sealing ring, making it impossible to remove. The traditional disassembly method involves the operator laying wool felt on the bottom surface of the multi-cavity buffer support after removing the core rod, and then compacting the outer cylinder against the wool felt in a "piling" manner, using inertia to "pop" the floating piston out. This method is less effective with larger multi-cavity buffer supports, requires multiple operators, and poses certain safety risks. Utility Model Content

[0004] The technical problem solved by this utility model is to provide a floating piston disassembly tool in a multi-sealed cavity buffer support, so as to solve the problems in the background art mentioned above.

[0005] The technical problem solved by this utility model is achieved by the following technical solution: A disassembly fixture for a floating piston in a multi-sealed cavity buffer support includes a spring rod, a tightening screw, a torsion spring, a fastener, a spring, a screw, a spring rod base, a locking pin, and an extension rod. The upper part of the spring rod base has a groove for inserting the spring rod, a mounting hole for inserting the fastener to secure the spring rod, and a stop plate for stopping the spring rod. The tightening screw is fixed to the fastener, and the torsion spring is nested on the spring rod. The locking pin is located below the spring rod and contacts it. The upper end of the spring is mounted on the locking pin, and the lower end of the spring is mounted on the spring base extending into the locking pin. The spring base is fixed to the spring rod base by screws. An extension rod is provided at the bottom of the spring rod base.

[0006] In this invention, the spring rod has a through hole in the middle for fasteners to pass through.

[0007] In this invention, the spring rod is provided with a slot for locking the torsion spring.

[0008] In this invention, the bottom of the spring rod is configured as an arc surface for sliding contact with the locking pin.

[0009] In this utility model, the locking pin is an L-shaped structure, the top of the L-shaped structure is provided with an arc-shaped end platform, the upper part of the L-shaped structure is provided with a limiting plate, the limiting plate and the arc-shaped end platform form a space for accommodating the spring, the bottom of the L-shaped structure is provided with a boss for contacting the bottom of the floating piston; the top of the arc-shaped end platform contacts the spring rod, and the lower part of the arc-shaped end platform is equipped with a spring.

[0010] In this utility model, the upper part of the spring base is provided with a screw hole for installing screws, and the lower part of the spring base is provided with a mounting plate for inserting into the locking pin to install the spring.

[0011] In this invention, the spring base restricts the locking pin to move linearly within the groove of the spring rod base, and together with the spring, forms a movable locking assembly.

[0012] In this invention, the locking pin and the spring rod are respectively provided with locking tongue structures to achieve manual quick reset and improve the efficiency of tooling use.

[0013] Beneficial effects: This utility model has a compact structure and is easy to use. It utilizes a torsion spring structure in conjunction with a movable lock structure to achieve rapid switching and locking of the spring rod's lateral and longitudinal positions. The spring rod can pass through the inner hole of the floating piston in a longitudinal position. After passing through the inner hole of the floating piston, it is unlocked by the bottom surface of the floating piston. The torsion spring structure resets and drives the spring rod to be placed horizontally, providing a mechanical support for the disassembly of the floating piston. Ultimately, this achieves efficient and stable disassembly of the floating piston. Attached Figure Description

[0014] Figure 1 This is an exploded view of a preferred embodiment of the present invention.

[0015] Figure 2 This is a schematic diagram of a preferred embodiment of the present invention.

[0016] Figure 3 This is a cross-sectional view of the spring rod base and the spring base in a preferred embodiment of the present invention.

[0017] Figure 4 for Figure 3 Enlarged view of section I in the middle.

[0018] Figures 5-8 This is a schematic diagram illustrating the usage steps of a preferred embodiment of the present invention. Detailed Implementation

[0019] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the following description, in conjunction with specific illustrations, further elaborates on this utility model.

[0020] See Figures 1-4 A floating piston disassembly fixture for a multi-sealed cavity buffer support includes a spring rod 1, a tightening screw 2, a torsion spring 3, a bolt 4, a washer 5, a spring 6, a screw 7, a spring rod base 8, a locking pin 9, a spring base 10, an extension rod 11, and a stop platform 12. The spring rod base 8 has a groove for inserting the spring rod 1, a mounting hole for inserting the bolt 4 and washer 5 to secure the spring rod 1, and a stop platform 12 for stopping the spring rod 1. The tightening screw 2 is fixed to the bolt 4, and the torsion spring 3 is nested on the spring rod 1. The locking pin 9 is located below the spring rod 1 and contacts it. The upper end of the spring 6 is mounted on the locking pin 9, and the lower end of the spring 6 is mounted on the spring base 10, which extends into the locking pin 9. The spring base 10 is fixed to the spring rod base 8 by the screw 7. An extension rod 11 is provided at the bottom of the spring rod base 8.

[0021] In this embodiment, the spring rod 1 has a through hole in the middle for the bolt 4 to pass through.

[0022] In this embodiment, the spring rod 1 is provided with a slot 13 for locking the torsion spring 3.

[0023] In this embodiment, the bottom of the spring rod 1 is set as an arc surface for sliding contact with the locking pin 9.

[0024] In this embodiment, the locking pin 9 is an L-shaped structure with an arc-shaped end platform at the top and a limiting plate at the upper part of the L-shaped structure. The limiting plate and the arc-shaped end platform form a space for accommodating the spring 6. The bottom of the L-shaped structure is provided with a boss 14 for contacting the bottom of the floating piston 15. The top of the arc-shaped end platform contacts the spring rod 1, and the lower part of the arc-shaped end platform is used to install the spring 6.

[0025] In this embodiment, the upper part of the spring base 10 is provided with a screw hole for mounting the screw 7, and the lower part of the spring base 10 is provided with a mounting plate for extending into the locking pin 9 to mount the spring 6.

[0026] In this embodiment, the spring base 10 restricts the locking pin 9 to move linearly within the groove of the spring rod base 8, and together with the spring 6, forms a movable locking assembly.

[0027] In this embodiment, the locking pin 9 and the spring rod 1 are respectively provided with locking tongue structures to achieve manual quick reset and improve the efficiency of tooling use.

[0028] In this embodiment, the working principle of the floating piston disassembly fixture is as follows: The torsion spring 3 provides torsional force to the spring rod 1. In the unlocked state, it can drive the spring rod 1 to rotate to the position (horizontal state) of the stop table 12. With the help of the movable lock assembly, the state switching of the spring rod 1 (vertical state and horizontal state) can be controlled. The spring rod 1 in the vertical state avoids interference from the floating piston and goes deep into the top of the floating piston. Then it switches to the horizontal state to form the mechanical support required for disassembly, thereby assisting in the disassembly operation. How to use the floating piston disassembly tool: like Figure 5 As shown, 1) the tooling is inserted into the inner hole of the floating piston 15 by using the extension rod 11 until the locking pin is unlocked, and the boss 14 of the locking pin 9 contacts the bottom of the floating piston 15. A is the direction in which the tooling continues to be pushed upward. like Figure 6 As shown, 2) Continue to push the tooling upward, and use the floating piston 15 to push the locking pin 9 to unlock. B is when the locking pin 9 is limited by the floating piston 15 and moves relative to the tooling. C is when the locking pin 9 moves downward and the spring 6 is compressed, and it is about to unlock. like Figure 7 As shown, 3) when the spring rod 1 is unlocked and rotated to a horizontal position, the tooling can be pulled in the opposite direction to bring out the floating piston 15. D is the floating piston 15 stopping pushing the tooling, the spring 6 is reset, E is the rotation direction of the spring rod 1, and F is the stop table 12 limiting the position of the spring rod 1. like Figure 8 As shown, 4) Reverse operation: manually push the spring rod 1 to lock it, and remove the tooling from the floating piston 15. G is the contact between the spring rod 1 and the top surface of the floating piston 15, and H is the direction of pulling the tooling. Precautions: This tooling has a wide range of applications. It can be used as long as the diameter of the floating piston 15 is larger than the outer diameter of the tooling and smaller than the length of the spring rod 1 after it is opened. The other side of the extension rod 11 can be connected to mechanical equipment to provide greater dismantling force as needed for the job.

[0029] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A disassembly fixture for a floating piston in a multi-sealed cavity buffer support, comprising a spring rod, a tightening screw, a torsion spring, a fastener, a spring, a screw, a spring rod base, a locking pin, a spring base, and an extension rod, characterized in that, The upper part of the spring rod base is provided with a groove for inserting the spring rod, a mounting hole for inserting a fastener to secure the spring rod, and a stop plate for stopping the spring rod. The tightening screw is fixed to the fastener, and the torsion spring is nested on the spring rod. The locking pin is located below the spring rod and contacts the spring rod. The upper end of the spring is mounted on the locking pin, and the lower end of the spring is mounted on the spring base extending into the locking pin. The spring base is fixed to the spring rod base by screws. An extension rod is provided at the bottom of the spring rod base.

2. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The spring rod has a through hole in the middle for fasteners to pass through.

3. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The spring rod is provided with a slot for locking the torsion spring.

4. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The bottom of the spring rod is set as an arc surface.

5. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The locking pin has an L-shaped structure with an arc-shaped end platform at the top and a limiting plate at the upper part of the L-shaped structure. The limiting plate and the arc-shaped end platform form a space for accommodating the spring. The bottom of the L-shaped structure has a boss for contacting the bottom of the floating piston. The top of the arc-shaped end platform contacts the spring rod, and the lower part of the arc-shaped end platform is fitted with a spring.

6. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The upper part of the spring base is provided with screw holes for installing screws, and the lower part of the spring base is provided with a mounting plate for inserting into the locking pin to install the spring.

7. The floating piston disassembly fixture in a multi-sealed cavity buffer support according to claim 1, characterized in that, The locking pin and the spring rod are each provided with a locking tongue structure.

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