Novel adapter structure

Abstract

The utility model belongs to the technical field of gas cylinder accessories, and particularly relates to a novel adapter structure. According to the novel adapter structure provided by the utility model, the shell unit, the conical pricking needle unit, the hollow supporting seat unit and the stop block unit are arranged, so that 1, the conical pricking needle unit is supported by the hollow supporting seat unit and the stop block unit, is detachably clamped in the shell unit and cannot be lost; the conical pricking needle unit can be replaced only by removing the hollow supporting seat unit and the stop block unit, and meanwhile, the hollow supporting seat unit plays a role in protecting the conical pricking needle unit and prevents the conical pricking needle unit from being broken or abraded due to stress; the gas cylinder needs to be screwed into the shell unit, the gas cylinder is close to the conical pricking needle unit and punctured by the conical pricking needle unit during screwing, operation is easy and convenient, and the deflation action can be completed without downward pressing action.

Description

Technical Field

[0001] The utility model belongs to the technical field of gas cylinder accessories, and in particular relates to a novel adapter structure. Background Art

[0002] Gas cylinders are high-pressure containers widely used in various fields such as machinery, aviation, aerospace, and navigation. The most common ones are standard oxygen cylinders, nitrogen cylinders, etc. There are also special cylinders designed for special working conditions and places. The gas cylinders and functional components are connected through pipes and straight or adapters.

[0003] The Chinese invention patent with patent publication number CN106958679A and publication date 2017.07.18 discloses a manual container valve for driving a gas cylinder, the structure of which includes: a valve body, a diaphragm, a clamping nut and a puncture needle.

[0004] The manual container valve for driving the gas cylinder in this invention patent has the following general structural principle: a diaphragm is arranged on the annular step between the inner cavity of the gas cylinder and the valve interface, and the diaphragm is fixed by a clamping nut to seal the high-pressure gas in the gas cylinder. A puncture needle is also arranged in the valve body, and the upper end of the puncture needle extends out of the outer end of the valve body through the needle hole, and the needle tip of the puncture needle faces the diaphragm. A latch is arranged on the side wall of the part of the upper end of the puncture needle extending through the needle hole, and the latch can prevent the puncture needle from completely entering the valve body; a valve seat is also arranged at the upper end of the valve body, and a pressure rod is hinged on the valve seat; when in use, the latch is first removed, and then the puncture needle is pressed downward by the pressure rod, so that the needle tip of the puncture needle punctures the diaphragm, and the high-pressure gas in the gas cylinder can enter the valve cavity of the valve body, and then flow out from the air outlet on the valve body and drive the relevant fire extinguisher to extinguish the fire.

[0005] However, the existing gas cylinder adapter still has at least the following two shortcomings in actual use, in other words, they are the technical problems to be solved by the present utility model.

[0006] 1. The upper end of the puncture needle lacks a fixed setting and is easy to be lost during use.

[0007] 2. When using, you need to remove the pin first, and then press the puncture needle down through the pressure rod to puncture the membrane, which is cumbersome to operate.

[0008] Therefore, in summary, a new adapter structure that is not easy to lose the needle and is easy to operate is urgently needed. Utility Model Content

[0009] The utility model provides a novel adapter structure, which can achieve the following by arranging a shell unit, a conical needle unit, a hollow support seat unit and a stop block unit: 1. The conical needle unit is supported by the hollow support seat unit and the stop block unit, and can be detachably stuck in the shell unit, and will not be lost. The conical needle unit can be replaced by simply removing the hollow support seat unit and the stop block unit. At the same time, the hollow support seat unit plays a protective role in supporting the conical needle unit to prevent it from being broken or worn by force; 2. The gas cylinder needs to be rotated into the shell unit. When the knob is rotated, the gas cylinder is close to the conical needle unit and is punctured by the conical needle unit. The operation is simple and convenient, and the deflation action can be completed without pressing down.

[0010] The technical solution adopted by the utility model to solve the above-mentioned problem is: a new adapter structure, including a shell unit, a conical puncture needle unit arranged in the shell unit and used to puncture the gas cylinder, a hollow support seat unit arranged in the shell unit and used to support the conical puncture needle unit, and a stopper unit arranged in the shell unit and used to resist the hollow support seat unit.

[0011] A further preferred technical solution is that the housing unit includes a puncture needle mounting seat, an internal threaded connector disposed on the puncture needle mounting seat and used to connect to the gas cylinder, and a supporting ring disposed in the puncture needle mounting seat and used to clamp the conical puncture needle unit.

[0012] A further preferred technical solution is that the conical puncture needle unit includes a T-shaped pressure block inserted on the supporting ring, a conical puncture portion arranged on the T-shaped pressure block and used to puncture the gas cylinder, and a cavity arranged on the T-shaped pressure block and the conical puncture portion.

[0013] A further preferred technical solution is that the hollow support seat unit includes a support ring block which is arranged on the puncture needle mounting seat and is used to support the T-shaped pressure block.

[0014] A further preferred technical solution is that the block unit comprises an annular groove arranged on the puncture needle mounting seat, and an open circular ring arranged in the annular groove and used to abut against the supporting ring block.

[0015] A further preferred technical solution is that: the open circular ring is replaced by a U-shaped retaining ring, and the retaining block unit further includes an inwardly protruding ring arranged on the U-shaped retaining ring.

[0016] A further preferred technical solution is that the block unit comprises a threaded plate arranged on the outer surface of the puncture needle mounting seat, and an internal threaded cover screwed on the threaded plate and used to abut against the supporting ring block.

[0017] A further preferred technical solution is that the hollow support seat unit also includes a filter element arranged on the support ring block and close to the position of the T-shaped pressure block.

[0018] A further preferred technical solution is that: the hollow support seat unit also includes a flaring ring which is arranged on the support ring block and has an inner diameter larger than that of the filter element.

[0019] A further preferred technical solution is that the width of the annular groove is greater than the thickness of the open circular ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a structural schematic diagram of the utility model.

[0021] Figure 2 It is a cross-sectional view of the housing unit in the present utility model.

[0022] Figure 3 It is a cross-sectional view of the conical puncture needle unit in the utility model.

[0023] Figure 4 It is a cross-sectional view of the utility model.

[0024] Figure 5 It is a schematic diagram of the position of the stopper unit in the utility model.

[0025] Figure 6 It is a partial cross-sectional view of the utility model.

[0026] In the figure, the meanings of the symbols are as follows:

[0027] Gas cylinder a;

[0028] Shell unit 1, conical needle unit 2, hollow support unit 3, stopper unit 4;

[0029] The puncture needle mounting seat 101, the internal thread joint 102, the support ring 103, the T-shaped pressure block 201, the conical piercing part 202, the cavity 203, the support ring block 301, the filter element 302, the expansion ring 303, the annular groove 401, the open ring 402, the U-shaped retaining ring 403, the inward protruding ring 404, the threaded plate 405, and the internal threaded cover 406. DETAILED DESCRIPTION

[0030] The following description is only a preferred embodiment of the present invention and is not intended to limit the scope of the present invention.

[0031] As attached Figure 1-6As shown, a novel adapter structure includes a shell unit 1, a conical puncture unit 2 arranged in the shell unit 1 and used to puncture the gas cylinder a, a hollow support base unit 3 arranged in the shell unit 1 and used to support the conical puncture unit 2, and a stopper unit 4 arranged in the shell unit 1 and used to resist the hollow support base unit 3.

[0032] In this embodiment, one end of the housing unit 1 is used to install the conical puncture needle unit 2, the hollow support unit 3 and the stopper unit 4, and the other end is connected to the gas cylinder a. The conical puncture needle unit 2 is installed in the housing unit 1, with one end extending into the housing unit 1 and close to the end connected to the gas cylinder a, and is used to puncture the gas cylinder a, and the other end is supported by the hollow support unit 3 to prevent the conical puncture needle unit 2 from being broken or worn due to force.

[0033] In addition, the function of the block unit 4 is to facilitate the installation and replacement of the conical puncture needle unit 2 and the hollow support seat unit 3. The block unit 4 prevents the conical puncture needle unit 2 and the hollow support seat unit 3 in the outer shell unit 1 from falling off by abutting against the hollow support seat unit 3. When the conical puncture needle unit 2 and the hollow support seat unit 3 are damaged or need to be replaced, it is only necessary to remove the block unit 4 for replacement, so that the new adapter structure can adapt to the needs of more types of gas cylinders a by replacing the conical puncture needle unit 2, thereby improving the service life of the adapter.

[0034] Finally, when in use, the gas cylinder a is connected to the outer shell unit 1 through the knob, and the knob is simultaneously moved closer to the conical puncture unit 2. The outer shell unit 1, the conical puncture unit 2, the hollow support unit 3 and the block unit 4 are all concentric circle structures, and a channel for gas circulation is reserved in the middle. The gas cylinder a is punctured by the conical puncture unit 2, and the gas in the gas cylinder a flows out of the outer shell unit 1 through the conical puncture unit 2. The block unit 4 and the hollow support unit 3 support the conical puncture unit 2 to reduce the possibility of its being broken or damaged by force.

[0035] The housing unit 1 includes a puncture needle mounting seat 101, an internal threaded connector 102 disposed on the puncture needle mounting seat 101 and used for connecting the gas cylinder a, and a supporting ring 103 disposed in the puncture needle mounting seat 101 and used for clamping the conical puncture needle unit 2.

[0036] In this embodiment, the puncture needle mounting seat 101 is a hollow shell with good airtightness, which is used to install the conical puncture needle unit 2. The internal thread joint 102 is located at the other end of the puncture needle mounting seat 101 and is used to be threaded with the gas cylinder a. The supporting ring 103 is located between the puncture needle mounting seat 101 and the internal thread joint 102, one end of which is used to support and insert the conical puncture needle unit 2, and the other end is used to support the gas cylinder a and limit the knob direction of the gas cylinder a.

[0037] The conical puncture needle unit 2 includes a T-shaped pressure block 201 inserted on the support ring 103, a conical puncture portion 202 arranged on the T-shaped pressure block 201 and used to puncture the gas cylinder a, and a cavity 203 arranged on the T-shaped pressure block 201 and the conical puncture portion 202.

[0038] In this embodiment, the T-shaped pressure block 201 is inserted into the supporting ring 103, and the conical piercing portion 202 extends into the internal threaded joint 102. When the knob of the gas cylinder a approaches the supporting ring 103, it is pierced by the conical piercing portion 202. The cavity 203 runs through the T-shaped pressure block 201 and the conical piercing portion 202. When the conical piercing portion 202 pierces the gas cylinder a, the gas can be quickly deflated through the cavity 203, and the cavity 203 can reduce the impact force of the gas in the gas cylinder a on the conical piercing portion 202, thereby reducing the difficulty of the conical piercing portion 202 piercing the gas cylinder a.

[0039] The hollow support seat unit 3 includes a support ring block 301 which is arranged on the puncture needle mounting seat 101 and is used to support the T-shaped pressure block 201 .

[0040] In this embodiment, the support ring block 301 is used to support the T-shaped pressure block 201. A channel is provided on the support ring block 301 to facilitate the flow of gas in the gas cylinder a. The aperture of the channel should be larger than the cavity 203 to improve the deflation efficiency and reduce the pressure impact of the gas on the structure.

[0041] The stopper unit 4 includes an annular groove 401 disposed on the puncture needle mounting seat 101 , and an open circular ring 402 disposed in the annular groove 401 and used to abut against the supporting ring block 301 .

[0042] In this embodiment, the annular groove 401 is arranged on the needle mounting seat 101, and is used to embed and install the open circular ring 402. The two ends of the support ring block 301 are connected to the T-shaped pressure block 201 and the open circular ring 402 respectively. The open circular ring 402 is used to clamp the support ring block 301, limit the support ring block 301, and prevent the support ring block 301 from falling off under force. The open circular ring 402 is suitable for a deformable material, such as rubber. When in use, the open circular ring 402 can better resist the support ring block 301 to prevent it from falling off. When it is necessary to replace or install the conical needle unit 2 and the hollow support seat unit 3, it is only necessary to pinch the opening of the open circular ring 402 to cause the open circular ring 402 to deform, so as to move it out of the annular groove 401, and then install or replace the conical needle unit 2 and the hollow support seat unit 3.

[0043] The open circular ring 402 is replaced by a U-shaped retaining ring 403 , and the retaining block unit 4 further includes an inwardly protruding ring 404 arranged on the U-shaped retaining ring 403 .

[0044] In this embodiment, when the open circular ring 402 is actually used, it needs a large force to remove it from the annular groove 401 because it is a circular ring structure, and it is difficult to disassemble and install. In order to facilitate the disassembly of the open circular ring 402, the open circular ring 402 can be replaced by the U-shaped retaining ring 403, which not only meets the resistance requirements, but also has a more suitable deformation space for easy disassembly and installation. The inward protruding ring 404 is set at both ends of the U-shaped retaining ring 403 to increase the support and limit strength. At the same time, its inward protruding setting is convenient for quickly locating the position for disassembly and installation, reducing the difficulty of disassembly and installation. In addition, the U-shaped retaining ring 403 and the inward protruding ring 404 will not interfere with the channel on the support ring block 301, and will not affect the circulation of gas.

[0045] The stopper unit 4 includes a threaded plate 405 disposed on the outer surface of the puncture needle mounting seat 101 , and an internal threaded cover 406 threadedly disposed on the threaded plate 405 and used to abut against the supporting ring block 301 .

[0046] In this embodiment, the threaded plate 405 and the internal threaded cover 406 are another embodiment of the block unit 4, and the support ring block 301 is blocked and limited in the form of a threaded cover. The internal threaded cover 406 is a hollow annular cover, which is connected to the puncture needle mounting seat 101 through the threaded plate 405. The threaded plate 405 is arranged near the air outlet. When the conical puncture needle unit 2 and the hollow support seat unit 3 need to be installed or replaced, it is only necessary to unscrew the internal threaded cover 406. A rubber ring for increasing airtightness can be arranged between the threaded plate 405 and the internal threaded cover 406.

[0047] The hollow support seat unit 3 further includes a filter element 302 which is arranged on the support ring block 301 and is close to the T-shaped pressure block 201 .

[0048] In this embodiment, the filter element 302 is located between the support ring block 301 and the T-shaped pressure block 201, and is used to filter the gas. The diameter of the filter element 302 is less than or equal to the diameter of the support ring block 301, but larger than the channel diameter of the support ring block 301, so that the filter element 302 is stuck between the support ring block 301 and the T-shaped pressure block 201, and has good stability. The filter element 302 can be selected according to the gas source to achieve a good filtering effect.

[0049] The hollow support seat unit 3 further includes a flaring ring 303 which is arranged on the support ring block 301 and has an inner diameter larger than that of the filter element 302 .

[0050] In this embodiment, the function of the expansion ring 303 is to protect the filter element 302. If there is no expansion ring 303, the filter element 302 will be squeezed by the conical needle unit 2, thereby affecting the filtering effect of the filter element 302. The expansion ring 303 can provide certain support for the conical needle unit 2, so that the filter element 302 is not squeezed and deformed.

[0051] The width of the annular groove 401 is greater than the thickness of the open ring 402 .

[0052] In this embodiment, the width of the annular groove 401 is greater than the thickness of the open ring 402. On the one hand, it is convenient to install and disassemble the open ring 402 and reduce the difficulty. On the other hand, there is a certain gap between the annular groove 401 and the open ring 402. When the conical puncture unit 2 is squeezed by the gas cylinder a, it will float slightly, thereby effectively compatibility with the situation that the gas cylinder a is eccentric and difficult to puncture. At the same time, the small floating can reduce the wear of the conical puncture unit 2 by the gas cylinder a after frequent use.

[0053] The above is a detailed description of the implementation of the utility model in conjunction with the accompanying drawings, but the utility model is not limited to the above implementation. Various modifications can be made within the knowledge of ordinary technicians in the technical field without departing from the purpose of the utility model. These are all non-creative modifications and are protected by patent law as long as they are within the scope of the claims of the utility model.

Claims

1. A new adapter structure, characterized in that: The invention comprises a shell unit (1), a conical puncture needle unit (2) arranged in the shell unit (1) and used for puncturing a gas cylinder (a), a hollow support seat unit (3) arranged in the shell unit (1) and used for supporting the conical puncture needle unit (2), and a stopper unit (4) arranged in the shell unit (1) and used for abutting against the hollow support seat unit (3).

2. A novel adapter structure according to claim 1, characterized in that: The housing unit (1) comprises a puncture needle mounting seat (101), an internal threaded joint (102) arranged on the puncture needle mounting seat (101) and used to connect to the gas cylinder (a), and a supporting ring (103) arranged in the puncture needle mounting seat (101) and used to clamp the conical puncture needle unit (2).

3. A novel adapter structure according to claim 2, characterized in that: The conical puncture needle unit (2) comprises a T-shaped pressure block (201) inserted on the supporting ring (103), a conical puncture portion (202) arranged on the T-shaped pressure block (201) and used for puncturing the gas cylinder (a), and a cavity (203) arranged on the T-shaped pressure block (201) and the conical puncture portion (202).

4. A novel adapter structure according to claim 3, characterized in that: The hollow support seat unit (3) comprises a support ring block (301) which is arranged on the puncture needle mounting seat (101) and is used to support the T-shaped pressure block (201).

5. A novel adapter structure according to claim 4, characterized in that: The stopper unit (4) comprises an annular groove (401) arranged on the puncture needle mounting seat (101), and an open circular ring (402) arranged in the annular groove (401) and used to abut against the supporting ring block (301).

6. A novel adapter structure according to claim 5, characterized in that: The open circular ring (402) is replaced by a U-shaped retaining ring (403), and the retaining block unit (4) further comprises an inwardly protruding ring (404) arranged on the U-shaped retaining ring (403).

7. A novel adapter structure according to claim 4, characterized in that: The stopper unit (4) comprises a threaded plate (405) arranged on the outer surface of the puncture needle mounting seat (101), and an internal threaded cover (406) threadedly arranged on the threaded plate (405) and used to abut against the supporting ring block (301).

8. A novel adapter structure according to claim 4, characterized in that: The hollow support seat unit (3) further comprises a filter element (302) which is arranged on the support ring block (301) and is close to the T-shaped pressure block (201).

9. A novel adapter structure according to claim 8, characterized in that: The hollow support seat unit (3) further comprises a flaring ring (303) which is arranged on the support ring block (301) and has an inner diameter greater than that of the filter element (302).

10. A novel adapter structure according to claim 5, characterized in that: The width of the annular groove (401) is greater than the thickness of the open circular ring (402).

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