Gas cylinder valve screwing tool

Abstract

The utility model relates to a screwing tool for a cylinder valve of a gas cylinder, which aims at solving the technical problem that a valve core of the gas cylinder is not easy to screw after being used for a long time, and adopts the technical scheme that an isosceles trapezoid clamping hole is formed in the upper part of a rectangular screwing plate, the clamping hole is narrow at the upper part and wide at the lower part, and the length of the upper bottom is smaller than the diameter of the valve core; the length of the lower bottom is larger than the diameter of the valve element, the included angle alpha between the waist and the lower bottom is larger than or equal to 75 degrees and smaller than 90 degrees, withdrawing blocks are fixedly arranged on the edges of one side or the two sides or the middle of the side wall of the screwing plate, a cushion block is fixedly arranged at the top end, and the width of the cushion block is larger than the thickness of the screwing plate. The valve element can be completely clamped through the trapezoid clamping hole, the valve element is loosened according to the lever principle, the length of the screwing plate can be adjusted according to needs, operation is easy, and operation efficiency is greatly improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the practical tool technical field of gas holder, specifically relates to a gas cylinder valve screwing tool. BACKGROUND

[0002] In the daily production of steel plants, gas cylinders containing industrial gases such as oxygen, acetylene, nitrogen and hydrogen are often used to meet the needs of steel smelting, cutting, welding and other process.

[0003] The valve core of the gas cylinder is often severely worn on the surface due to frequent operation and external environmental influence during long-term use. This wear not only affects the normal function of the valve core, but also brings many inconveniences to daily maintenance and operation. Specifically, when the threads of the gas cylinder valve core are worn to a certain extent, the knob cannot be used, and tightening or loosening operation with a wrench or other tools becomes extremely difficult, which may also cause the sealing performance of the gas cylinder to decline, thereby affecting the safety and use effect of the gas cylinder.

[0004] In view of this situation, the traditional solution usually includes using more force to try to screw the valve core, replacing the new valve core or repairing the worn threads. However, these methods have certain limitations. Using more force is time-consuming and laborious, which increases the work intensity; replacing the new valve core requires additional cost and time; and repairing the worn threads requires professional technology and equipment, and the repair effect is often difficult to guarantee. SUMMARY

[0005] The utility model aims at solving the above problems, and provides a gas cylinder valve screwing tool.

[0006] To solve the above technical problems, the utility model adopts the technical scheme of:

[0007] A gas cylinder valve screwing tool, a trapezoidal clamping hole is formed in the upper part of a rectangular screwing plate, the clamping hole is narrow at the top and wide at the bottom, and an exit block is fixed on one side, both side edges or the middle of the side wall of the screwing plate.

[0008] Further, the included angle between the waist and the lower base of the clamping hole is 75°≤α<90°.

[0009] Further, the upper base length of the clamping hole is less than the diameter of the valve core, and the lower base length is greater than the diameter of the valve core.

[0010] Further, the top end of the screwing plate is fixed with a pad block, and the width of the pad block is greater than the thickness of the screwing plate.

[0011] Further, a reinforcing rib is arranged between the pad block and the screwing plate.

[0012] Further, the lower part of the screwing plate is provided with a hand holding part.

[0013] Further, the lower end surface of the exit block is a horizontal surface, and the upper end surface is an outward inclined surface.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. The trapezoidal clamping hole can clamp the valve core completely, the loosening of the valve core is completed by using the lever principle, the length of the screwing plate can be adjusted according to the requirement, the operation is simple, and the work efficiency is greatly improved.

[0016] 2. The angle between the waist of the clamping hole and the lower bottom is 75°≤α<90°, the waist can contact the valve core with a larger area, and this is beneficial to the screwing.

[0017] 3. The clamping and removal of the screwing plate are more convenient by arranging the cushion block and the exit block.

[0018] 4. The utility model has the advantages of simple structure, convenient operation, low cost, and the production can be completed by using waste materials, and is suitable for promotion. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a structure schematic view of a gas cylinder;

[0020] Figure 2 It is a structure schematic view of a valve core of a gas cylinder;

[0021] Figure 3 It is another structure schematic view of a valve core of a gas cylinder;

[0022] Figure 4 It is a structure schematic view of the utility model;

[0023] Figure 5 It is a structure schematic view of the clamping hole of the utility model;

[0024] In the drawing: 1, gas cylinder; 2, knob; 3, valve core; 4, screwing plate; 5, clamping hole; 6, hand holding part; 7, cushion block; 8, reinforcing rib; 9, exit block. DETAILED DESCRIPTION

[0025] The utility model will be further described below in combination with the drawings and embodiments.

[0026] As Figures 1-5As shown, a gas cylinder valve turning tool has an isosceles trapezoidal clamping hole 5 on the upper part of a rectangular turning plate 4 and a hand grip 6 at the lower part. The clamping hole 5 is narrower at the top and wider at the bottom, with the waist and bottom forming an angle of 75°. The length of the upper bottom is less than the diameter of the valve core 3, and the length of the lower bottom is greater than the diameter of the valve core 3. A pad 7 is fixed at the top of the turning plate 4, and the width of the pad 7 is greater than the thickness of the turning plate 4. A reinforcing rib 8 is provided between the pad 7 and the turning plate 4. An ejection block 9 is fixed on one side, both sides, or the middle of the side wall of the turning plate 4. The lower end surface of the ejection block 9 is a horizontal plane, and the upper end surface is an outwardly inclined plane.

[0027] The angle between the waist of the clamping hole 5 and the bottom can also be any value between 75°≤α<90°.

[0028] When using this utility model, align the bottom of the clamping hole 5 with the valve core 3 and place it on the valve core 3. One person holds the grip 6 to keep the screwing plate 4 horizontal, while another person uses a hammer to strike the pad 7, causing the bottom of the clamping hole 5 to move towards the valve core 3 until the clamping hole 5 completely clamps the valve core 3. By striking the pad 7, the clamping tightness between the clamping hole 5 and the valve core 3 can be adjusted to facilitate the operation. Then stop striking, and the other person screws the grip 6 until the valve core 3 loosens. After loosening or unscrewing, use a hammer to strike the release block 9 in the opposite direction, and the bottom of the clamping hole 5 gradually moves closer to the valve core 3 until it is finally released. Remove the screwing plate 4 to complete the operation.

Claims

1. A tool for turning a gas cylinder valve, characterized in that, An isosceles trapezoidal clamping hole (5) is provided on the upper part of a rectangular twisting plate (4). The clamping hole (5) is narrow at the top and wide at the bottom. An exit block (9) is fixed on one side, the two sides, or the middle of the side wall of the twisting plate (4).

2. The gas cylinder valve tightening tool according to claim 1, characterized in that, The angle between the waist of the clamping hole (5) and the bottom is 75°≤α<90°.

3. The gas cylinder valve tightening tool according to claim 1, characterized in that, The upper bottom length of the clamping hole (5) is less than the diameter of the valve core (3), and the lower bottom length is greater than the diameter of the valve core (3).

4. The gas cylinder valve tightening tool according to claim 1, characterized in that, The top of the rotating plate (4) is fixed with a pad (7), and the width of the pad (7) is greater than the thickness of the rotating plate (4).

5. A gas cylinder valve tightening tool according to claim 4, characterized in that, A reinforcing rib (8) is provided between the pad (7) and the rotating plate (4).

6. A gas cylinder valve tightening tool according to claim 1, characterized in that, The lower part of the rotating plate (4) is provided with a hand grip (6).

7. A gas cylinder valve tightening tool according to claim 1, characterized in that, The lower end face of the exit block (9) is a horizontal plane, and the upper end face is an outward inclined plane.

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