阅读说明：本技术 一种不降压换阀器及使用方法 (Non-pressure-reduction valve replacing device and using method ) 是由 雷昆 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种不降压换阀器及使用方法,该换阀器包括螺纹杆、螺纹套以及连接座,在螺纹杆上螺纹连接有螺纹套,在螺纹套上螺纹连接有连接座,在螺纹杆的下端螺纹连接有下部带垫螺母,在螺纹杆上且位于螺纹套与下部带垫螺母之间套有橡胶套,在螺纹杆的下部螺纹连接有上部带垫螺母,且上部带垫螺母与螺纹套的上端焊接固定。本发明将螺纹套下端的橡胶套穿过待更换球阀后进入燃气管道中,然后通过螺纹套的下端挤压橡胶套,使橡胶套膨胀并与燃气管道内壁贴紧,从而通过膨胀后的橡胶套阻隔燃气管道内的燃气流出,这样便可在不降压的情况下拆掉漏气的待更换球阀并换上新的球阀。(The invention discloses a non-pressure-reduction valve changer and a using method thereof, the valve changer comprises a threaded rod, a threaded sleeve and a connecting seat, the threaded rod is in threaded connection with the threaded sleeve, the connecting seat is in threaded connection with the threaded sleeve, the lower end of the threaded rod is in threaded connection with a lower washer nut, a rubber sleeve is sleeved on the threaded rod and positioned between the threaded sleeve and the lower washer nut, the lower part of the threaded rod is in threaded connection with an upper washer nut, and the upper washer nut and the upper end of the threaded sleeve are welded and fixed. According to the invention, the rubber sleeve at the lower end of the threaded sleeve penetrates through the ball valve to be replaced and enters the gas pipeline, and then the rubber sleeve is extruded through the lower end of the threaded sleeve, so that the rubber sleeve is expanded and is tightly attached to the inner wall of the gas pipeline, and therefore, the gas in the gas pipeline is blocked from flowing out through the expanded rubber sleeve, and thus, the leaked ball valve to be replaced can be removed and replaced by a new ball valve without reducing the pressure.)

1. The utility model provides a do not step down and trade valve ware, includes threaded rod (1), thread bush (2) and connecting seat (3), its characterized in that: threaded connection has thread bush (2) on threaded rod (1), threaded connection has connecting seat (3) on thread bush (2), lower extreme threaded connection at threaded rod (1) has lower part to take the pad nut (5), on threaded rod (1) and be located the cover between thread bush (2) and lower part to take pad nut (5) and have rubber sleeve (4), have upper portion to take the pad nut (6) in the lower part threaded connection of threaded rod (1), and the upper end welded fastening of upper portion to take pad nut (6) and thread bush (2).

2. The non-depressurising valve changer of claim 1, wherein: the upper end of the threaded rod (1) is provided with a hexagonal head (7) which is connected with the threaded rod (1) into a whole.

3. The non-depressurising valve changer of claim 2, wherein: the hexagonal head (7) and the upper nut (6) with the pad can penetrate through the connecting seat (3).

4. The use method of the non-decompression valve changer based on any one of claims 1 to 3 is characterized by comprising the following steps of:

firstly, connecting a connecting seat (3) and a ball valve to be replaced together in a threaded manner, then opening a valve of the ball valve to be replaced, and then rotating an upper nut (6) with a gasket to drive a threaded sleeve (2) to rotate and move downwards until a rubber sleeve (4) at the lower part of the threaded sleeve (2) penetrates through the ball valve to be replaced and then enters a gas pipeline;

fixing the threaded rod (1), then continuously rotating the threaded sleeve (2) to enable the lower end of the threaded sleeve (2) to extrude the rubber sleeve (4), enabling the rubber sleeve (4) to expand and be tightly attached to the inner wall of the gas pipeline, and accordingly blocking the gas in the gas pipeline from flowing out through the expanded rubber sleeve (4);

step three, disassembling the connecting seat (3) and the ball valve to be replaced in sequence, and then fixedly connecting a new ball valve with the gas pipeline;

step four, connecting the connecting seat (3) and the new ball valve together through threads, then reversely rotating the threaded sleeve (2), enabling the rubber sleeve (4) at the lower end of the threaded sleeve (2) to withdraw from the new ball valve, closing a valve of the new ball valve, and finally disassembling the connecting seat (3) and the threaded sleeve (2) together to complete the replacement work of the new ball valve.

5. The method of using a non-depressurising valve changer according to claim 4, wherein: when the connecting seat (3) is disassembled, the threaded sleeve (2) is kept fixed, and gas leakage caused by loosening of the rubber sleeve (4) is avoided.

Technical Field

The invention relates to a non-pressure-reduction valve replacing device and a using method thereof, belonging to the technical field of emergency repair of gas valves.

Background

In daily gas pipeline emergency rescue, salvage work, often can meet DN40 or DN25 on the middling pressure trunk line and diffuse ball valve screw mouth or the handle condition of leaking gas, this kind of leakage is mostly in airtight spaces such as valve well, handles at every turn and all steps down and change new ball valve, and a large amount of air supplies not only will be diffused to this kind of processing mode, lead to environmental pollution to there is serious potential safety hazard, but also probably will cause the large tracts of land to stop the gas.

Disclosure of Invention

The invention aims to provide a non-pressure-reduction valve changer and a using method thereof, so that a gas-leaking ball valve can be quickly and safely changed without reducing pressure, potential safety hazards are eliminated, cost is saved, and environmental influence is reduced.

The technical scheme of the invention is as follows: the utility model provides a do not step down and trade valve ware, includes threaded rod, thread bush and connecting seat, threaded connection has the thread bush on the threaded rod, and threaded connection has the connecting seat on the thread bush, has the lower part to take the pad nut at the lower extreme threaded connection of threaded rod, and the cover has the rubber sleeve on the threaded rod and lies in between thread bush and the lower part to take the pad nut, has upper portion to take the pad nut at the lower part threaded connection of threaded rod, and the upper end welded fastening of upper portion area pad nut and thread bush.

Furthermore, the upper end of the threaded rod is provided with a hexagonal head which is connected with the threaded rod into a whole.

Furthermore, the hexagonal head and the upper nut with the pad can penetrate through the connecting seat.

Meanwhile, the invention also provides a use method based on the non-decompression valve changer, which comprises the following steps:

firstly, connecting a connecting seat and a ball valve to be replaced together in a threaded manner, then opening a valve of the ball valve to be replaced, then rotating an upper nut with a gasket, further driving a threaded sleeve to rotate and move downwards until a rubber sleeve at the lower part of the threaded sleeve penetrates through the ball valve to be replaced and then enters a gas pipeline;

fixing the threaded rod, then continuously rotating the threaded sleeve to enable the lower end of the threaded sleeve to extrude the rubber sleeve, so that the rubber sleeve expands and is tightly attached to the inner wall of the gas pipeline, and the expanded rubber sleeve blocks the gas in the gas pipeline from flowing out;

step three, disassembling the connecting seat and the ball valve to be replaced in sequence, and then fixedly connecting a new ball valve with the gas pipeline;

and step four, connecting the connecting seat and the new ball valve together through threads, then reversely rotating the threaded sleeve to enable the rubber sleeve at the lower end of the threaded sleeve to withdraw from the new ball valve, closing a valve of the new ball valve, and finally disassembling the connecting seat and the threaded sleeve together to finish the replacement work of the new ball valve.

In the method, when the connecting seat is disassembled, the threaded sleeve is kept fixed, and gas leakage caused by loosening of the rubber sleeve is avoided.

Due to the adoption of the technical scheme, the invention has the advantages that: according to the invention, the rubber sleeve at the lower end of the threaded sleeve penetrates through the ball valve to be replaced and enters the gas pipeline, and then the rubber sleeve is extruded through the lower end of the threaded sleeve, so that the rubber sleeve is expanded and is tightly attached to the inner wall of the gas pipeline, and therefore, the gas in the gas pipeline is blocked from flowing out through the expanded rubber sleeve, and thus, the leaked ball valve to be replaced can be removed and replaced by a new ball valve without reducing the pressure. Therefore, the invention has the advantages of ingenious structure and simple operation, and the air-leaking ball valve can be easily replaced by one person under the condition of not reducing the pressure, thereby greatly improving the emergency efficiency and eliminating the potential safety hazard in time.

Drawings

FIG. 1 is a schematic structural diagram of the present invention.

Description of reference numerals: 1-threaded rod, 2-threaded sleeve, 3-connecting seat, 4-rubber sleeve, 5-lower nut with pad, 6-upper nut with pad and 7-hexagonal head.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail with reference to the accompanying drawings and examples.

The embodiment of the invention comprises the following steps: the non-pressure-reduction valve changer and the use method thereof are structurally as shown in fig. 1, and comprise a threaded rod 1, a threaded sleeve 2 and a connecting seat 3, wherein the threaded sleeve 2 is in threaded connection with the threaded rod 1, the connecting seat 3 is in threaded connection with the threaded sleeve 2, a lower washer nut 5 is in threaded connection with the lower end of the threaded rod 1, a rubber sleeve 4 is sleeved on the threaded rod 1 and positioned between the threaded sleeve 2 and the lower washer nut 5, an upper washer nut 6 is in threaded connection with the lower end of the threaded rod 1, and the upper washer nut 6 is welded and fixed with the upper end of the threaded sleeve 2. The upper end of the threaded rod 1 is provided with a hexagonal head 7 which is connected with the threaded rod 1 into a whole. The hexagonal head 7 and the upper washer nut 6 can penetrate through the connecting seat 3.

The use method of the non-depressurization valve changer comprises the following steps of:

firstly, connecting a connecting seat 3 and a ball valve to be replaced together in a threaded manner, then opening a valve of the ball valve to be replaced, and then rotating an upper nut 6 with a gasket to drive a threaded sleeve 2 to rotate and move downwards until a rubber sleeve 4 at the lower part of the threaded sleeve 2 penetrates through the ball valve to be replaced and then enters a gas pipeline;

fixing a hexagonal head 7 at the upper end of the threaded rod 1 through a wrench to prevent the threaded rod 1 from rotating, and then continuously rotating the threaded sleeve 2 to extrude the rubber sleeve 4 between the threaded sleeve 2 and the lower nut 5 with a gasket, so that the rubber sleeve 4 is expanded and is tightly attached to the inner wall of the gas pipeline, and the expanded rubber sleeve 4 blocks the gas in the gas pipeline from flowing out;

step three, disassembling the connecting seat 3 and the ball valve to be replaced in sequence, and then fixedly connecting a new ball valve with the gas pipeline; when the connecting seat 3 is disassembled, the threaded sleeve 2 is kept fixed, so that gas leakage caused by loosening of the rubber sleeve 4 is avoided;

step four, connecting the connecting seat 3 and the new ball valve together through threads, then reversely rotating the threaded sleeve 2 to enable the rubber sleeve 4 at the lower end of the threaded sleeve 2 to withdraw from the new ball valve, closing a valve of the new ball valve, and finally disassembling the connecting seat 3 and the threaded sleeve 2 together to finish the replacement work of the new ball valve.

In conclusion, the rubber sleeve 4 at the lower end of the threaded sleeve 2 penetrates through the ball valve to be replaced and enters the gas pipeline, then the rubber sleeve 4 is extruded through the lower end of the threaded sleeve 2, the rubber sleeve 4 is expanded and is tightly attached to the inner wall of the gas pipeline, and therefore gas in the gas pipeline is blocked from flowing out through the expanded rubber sleeve 4, and therefore the leaked ball valve to be replaced can be detached and replaced by a new ball valve without pressure reduction. Therefore, the invention has the advantages of ingenious structure and simple operation, and the air-leaking ball valve can be easily replaced by one person under the condition of not reducing the pressure, thereby greatly improving the emergency efficiency and eliminating the potential safety hazard in time.