Nitrogen cylinder removal tool

Abstract

The utility model provides a disassembly tool for a nitrogen cylinder. The disassembly tool body is columnar as a whole. One end of the disassembly tool body is connected with an exhaust part adapted to an exhaust hole of the nitrogen cylinder, and the other end is connected with a disassembly part matched with an end of a valve core. When disassembling, a threaded section is first rotated and screwed into the exhaust hole, so that a push rod axially extending from the end of the threaded section pushes against the end of the valve core, an exhaust passage for gas exhaust is provided between the threaded section and the exhaust hole, so that the gas inside the nitrogen rod is exhausted, and then the valve core is disassembled by using the disassembly part matched with the end of the valve core.

Description

Technical Field

[0001] The utility model belongs to the technical field of disassembling nitrogen cylinders, and in particular relates to a disassembling tool for a nitrogen cylinder. Background Art

[0002] The nitrogen cylinder is a new type of elastic component that uses high-pressure nitrogen as the working medium. It is widely used in the mold manufacturing industry in automobile stamping workshops. However, due to the large-scale production in the workshop, the mold will be in a long-term high-load working state, which will cause the internal components of the nitrogen cylinder in the mold to wear and cause the nitrogen cylinder to lose its working ability. Therefore, maintenance personnel need to repair the worn and leaking nitrogen cylinder. Since the nitrogen cylinder is a new type of elastic component that uses high-pressure nitrogen as the working medium, high-pressure nitrogen may cause an explosion under unpredictable circumstances. Therefore, nitrogen must be discharged before repairing the nitrogen cylinder or disassembling the nitrogen cylinder valve core to avoid the valve flying out and injuring people when the valve is removed. Utility Model Content

[0003] The utility model provides a disassembly tool for a nitrogen cylinder, aiming to realize nitrogen discharge from the nitrogen cylinder and disassembly of a valve core of the nitrogen cylinder.

[0004] To achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A disassembly tool for a nitrogen cylinder, wherein the disassembly tool body is generally columnar, one end of the disassembly tool body is connected to an exhaust portion adapted to an exhaust hole of the nitrogen cylinder, and the other end is connected to a disassembly portion matched to an end of a valve core, the exhaust portion comprises a threaded section matched to the thread of the exhaust hole and a push rod axially extending from the end of the threaded section, and an exhaust passage for gas exhaust is provided between the threaded section and the exhaust hole.

[0006] In the above scheme, one end of the disassembly tool body is connected to an exhaust part adapted to the exhaust hole of the nitrogen cylinder, and the other end is connected to a disassembly part matching the end of the valve core. During disassembly, the threaded section is first rotated into the exhaust hole so that the push rod axially extending from the end of the threaded section presses against the end of the valve core, thereby exhausting the gas inside the nitrogen rod, and then the disassembly part matching the end of the valve core is used to disassemble the valve core. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 , 2 It is a three-dimensional structural schematic diagram of the utility model;

[0008] Figure 3 It is a schematic diagram of the three-dimensional structure of the nitrogen cylinder;

[0009] Figure 4 It is a schematic diagram of the utility model in the deflated state;

[0010] Figure 5It is a schematic diagram of the utility model in a disassembled state. DETAILED DESCRIPTION

[0011] like Figures 1 to 5 As shown, a disassembly tool for a nitrogen cylinder, a disassembly tool body 10 is generally columnar, one end of the disassembly tool body 10 is connected to an exhaust portion 20 adapted to the exhaust hole A1 of the nitrogen cylinder A, and the other end is connected to a disassembly portion 30 matched with the end of the valve core B, the exhaust portion 20 includes a threaded section 21 threadedly matched with the exhaust hole A1 and a push rod 22 axially extending from the end of the threaded section 21, and an exhaust passage 23 for gas exhaust is provided between the threaded section 21 and the exhaust hole A1.

[0012] Before the disassembly tool body 10 in the above scheme is used to disassemble the valve core B, the nitrogen in the nitrogen cylinder A must be completely exhausted first. Therefore, the above disassembly tool body 10 first needs to exhaust the nitrogen cylinder A. When the disassembly tool body 10 is used to exhaust the nitrogen cylinder A, the threaded section 21 of the exhaust part 20 needs to be screwed into the exhaust hole A1 so that the push rod 22 axially extending from the end of the threaded section 21 abuts against the end of the valve core B. Then, the push pin is rotated, and the nitrogen will be discharged as the operator's hand twists, and the outlet amount of the nitrogen is controlled by the operator's twisting amplitude, thereby achieving the effect of quantitatively exhausting nitrogen and exhausting nitrogen at a constant speed. When the gas inside the nitrogen cylinder A is completely removed, the exhaust part 20 of the disassembly tool body 10 is screwed out, and the disassembly part 30 is inserted into the exhaust hole A, so that the disassembly part 30 matches and engages with the end of the valve core B, and the valve core B can be screwed out.

[0013] Preferably, the threaded section 21 is partially cut off from the outer end of the stud to the inner end of the stud along the axial direction to form a missing portion 211, and the missing portion 211 and the exhaust hole A1 form a gas exhaust passage 23. In the above scheme, the missing portion 211 is formed by cutting off part of the threaded section 21 to form the gas exhaust passage 23, so that the nitrogen in the nitrogen cylinder can be discharged smoothly, and the gas discharge is achieved while facilitating processing without affecting the structural strength of the threaded section 21.

[0014] Furthermore, the disassembly part 30 includes a disassembly rod 31 fixedly connected to the disassembly tool body 10, and a clamping interface 32 is provided at the outer end of the disassembly rod 31, and the clamping interface 32 is mutually clamped with the end of the valve core B to form circumferential synchronous rotation. In the above scheme, the clamping interface 32 at the outer end of the disassembly rod 31 is mutually clamped with the end of the valve core B to form circumferential synchronous rotation, so as to loosen the valve core B and then take out the valve core B. The clamping interface 32 can be a tube sleeve type that is sleeved on the end of the valve core B to form circumferential synchronous rotation, or an embedded type that is mutually clamped with the end of the valve core B to form circumferential synchronous rotation, and can be matched according to different ends of the valve core B.

[0015] Preferably, the width of the missing portion 211 is smaller than the diameter of the threaded section 21 , ensuring that the threaded section 21 can be threadedly matched with the exhaust hole A1 , so that the push rod 22 can accurately reach the end of the valve core B.

[0016] Preferably, the disassembly tool body 10 is cylindrical as a whole. In order to increase the friction between the disassembly tool body 10 and the hand, the column of the disassembly tool body 10 is engraved with anti-slip knurling 11, which facilitates better screwing of the threaded section 21 into the exhaust hole A1 using the control push rod 22.

[0017] Preferably, in order to relieve the gas pressure when the nitrogen is discharged and prevent the nitrogen from directly contacting the operator's hands, the disassembly tool body 10 and the threaded section 21 are transitioned by a tapered section 40 .

Claims

1. A disassembly tool for a nitrogen cylinder, characterized in that: The disassembly tool body (10) is generally columnar, one end of the disassembly tool body (10) is connected to an exhaust portion (20) adapted to an exhaust hole (A1) of a nitrogen cylinder (A), and the other end is connected to a disassembly portion (30) matched to an end of a valve core (B), the exhaust portion (20) comprises a threaded section (21) threadedly matched to the exhaust hole (A1) and a push rod (22) axially extending from the end of the threaded section (21), and an exhaust passage (23) for gas exhaust is provided between the threaded section (21) and the exhaust hole (A1).

2. The nitrogen cylinder disassembly tool according to claim 1, characterized in that: The threaded section (21) is partially cut away from the outer end of the stud to the inner end of the stud along the axial direction to form a missing portion (211), and a gas exhaust passage (23) is formed between the missing portion (211) and the exhaust hole (A1).

3. The nitrogen cylinder disassembly tool according to claim 1, characterized in that: The disassembly portion (30) comprises a disassembly rod (31) fixedly connected to the disassembly tool body (10); the outer end of the disassembly rod (31) is provided with a clamping interface (32); the clamping interface (32) and the end of the valve core (B) are mutually clamped and constitute circumferential synchronous rotation.

4. The nitrogen cylinder disassembly tool according to claim 2, characterized in that: The width of the missing portion (211) is smaller than the diameter of the threaded section (21).

5. The nitrogen cylinder disassembly tool according to claim 1, characterized in that: The disassembly tool body (10) is cylindrical in shape as a whole, and anti-skid knurling (11) is engraved on the column of the disassembly tool body (10).

6. The nitrogen cylinder disassembly tool according to claim 5, characterized in that: A tapered section (40) transitions between the disassembly tool body (10) and the threaded section (21).

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