Gas cylinder access device

Abstract

The utility model discloses a gas cylinder connecting device, and relates to the technical field of connecting devices. A gas guide pipe is arranged on the outer side of the gas cylinder connecting pipe, a gas cylinder connecting mechanism is arranged between the gas guide pipe and the gas cylinder connecting pipe, and an equipment connecting mechanism is arranged at the end, away from the gas cylinder connecting pipe, of the gas guide pipe and used for communicating the gas guide pipe with external equipment. A first sealing ring is arranged between the insertion connecting pipe and the gas cylinder connecting pipe, a second sealing gasket is arranged between the limiting ring and the gas cylinder connecting pipe, a second sealing ring is arranged between the sliding connecting cylinder and the limiting ring, and a third sealing ring is arranged between the abutting ring and the right side wall of the sliding connecting cylinder. And meanwhile, a sealing gasket I is arranged between the gas guide connecting pipe and the rotating cylinder, and the sealing rings and the sealing gasket act together, so that gas leakage is effectively prevented, the sealing performance of the device is improved, and the safety of the equipment is greatly improved. The air pressure detection sensor can monitor air pressure changes in real time and can give an alarm immediately when air pressure abnormity is found.

Description

TECHNICAL FIELD

[0001] The utility model relates to connecting device technical field especially relates to a gas cylinder access device. BACKGROUND

[0002] The gas cylinder access device is an auxiliary tool for connecting gas cylinders and related equipment, aiming to improve connection efficiency, quality and safety. As a key component for connecting gas cylinders and gas using equipment, the performance of the gas cylinder access device directly affects the efficiency and safety of gas transmission. However, the existing gas cylinder access device often adopts a simple plug-in mechanism in structure, and thus has the problem of poor sealing after long-term use, which not only affects the normal supply of gas, but also may cause safety accidents; in addition, the adaptability problem is also a big challenge faced by the current gas cylinder access device. Due to the diversity of specifications and models of gas using equipment, different gas using equipment often needs access devices of different sizes and structures, which makes the replacement and adaptation of the access device become complicated in actual application, not only increases the operation cost, but also may cause problems such as loose connection and gas leakage due to improper adaptation.

[0003] Therefore, the present application provides a gas cylinder access device to solve the above problems. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a gas cylinder access device, which solves the technical problems proposed in the background art.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a gas cylinder access device, comprising a gas cylinder connecting pipe, the gas cylinder connecting pipe is an external thread connecting pipe arranged on the gas cylinder, a gas guide pipe is arranged on the outer side of the gas cylinder connecting pipe, a gas cylinder connecting mechanism is arranged between the gas guide pipe and the gas cylinder connecting pipe, an equipment connecting mechanism is arranged at the end of the gas guide pipe away from the gas cylinder connecting pipe, and the equipment connecting mechanism is used for the communication between the gas guide pipe and external equipment.

[0006] The gas cylinder connecting mechanism comprises a rotating cylinder and a gas guide connecting pipe, an internally threaded connecting hole is formed in the left side wall of the rotating cylinder, the internally threaded connecting hole is matched with the gas cylinder connecting pipe, one end of the gas guide connecting pipe is communicated with the gas guide pipe, the other end of the gas guide connecting pipe penetrates through the side wall of the rotating cylinder away from the internally threaded connecting hole and is fixedly connected with a sliding connecting cylinder, a sealing gasket one is fixedly connected to the inner wall of the right side of the rotating cylinder, the sealing gasket one is annular, the inner side wall of the sealing gasket one is abutted with the outer side wall of the gas guide connecting pipe, an inserted connecting pipe is arranged in the inner side of the sliding connecting cylinder, the left end of the inserted connecting pipe penetrates through the side wall of the sliding connecting cylinder away from the gas guide connecting pipe and extends to the inner side of the gas cylinder connecting pipe, a plurality of sealing rings one are arranged between the gas cylinder connecting pipe and the inserted connecting pipe, the inner side wall of the sealing ring one is fixedly connected with the outer side wall of the inserted connecting pipe, the outer end of the sealing ring one is abutted with the inner side wall of the gas cylinder connecting pipe, and the inserted connecting pipe is communicated with the gas guide connecting pipe through the sliding connecting cylinder.

[0007] Preferably, an abutting ring is slidingly connected in the sliding connecting cylinder, the inner side wall of the abutting ring is fixedly connected with the outer side wall of the inserted connecting pipe, a limiting ring is fixedly connected to the inserted connecting pipe, and the limiting ring is located between the sliding connecting cylinder and the gas cylinder connecting pipe, a sealing gasket two is fixedly connected to the left end of the limiting ring, and the left end of the sealing gasket two is abutted with the right end of the gas cylinder connecting pipe.

[0008] Preferably, a sealing ring two is arranged between the limiting ring and the left side wall of the sliding connecting cylinder, and a sealing ring three is arranged between the abutting ring and the right side wall of the sliding connecting cylinder, and the right end of the sealing ring two and the right end of the sealing ring three are respectively fixedly connected with the left outer wall and the right inner wall of the sliding connecting cylinder.

[0009] Preferably, the sealing ring two and the sealing ring three are both designed in a hollow structure.

[0010] Preferably, an abutting spring is sleeved on the inserted connecting pipe, the left end of the abutting spring is abutted with the left inner wall of the sliding connecting cylinder, and the right end of the abutting spring is abutted with the left end of the abutting ring.

[0011] Preferably, a gas pressure detection sensor is arranged in the inner side of the rotating cylinder, and the gas pressure detection sensor is connected with an alarm through a control module.

[0012] Preferably, the equipment connecting mechanism comprises a connecting plate, an inserted pipe is arranged on the side of the connecting plate away from the gas guide pipe, the left end of the inserted pipe penetrates through the connecting plate and is communicated with the gas guide pipe, a rotating connecting ring is sleeved on the connecting plate, a plurality of elastic clamping plates are fixedly connected to the right side wall of the connecting plate, the plurality of elastic clamping plates are distributed in a circumferential array, one end of the elastic clamping plate away from the gas guide pipe is obliquely arranged away from one end of the inserted pipe, and the inner side wall of the rotating connecting ring is threadedly connected with the outer side wall of the elastic clamping plate.

[0013] Preferably, the right side port of the insertion pipe has a smaller diameter than the left side port, an outer sealing layer made of rubber is arranged on the outer wall of the insertion pipe, and an anti-skid groove is arranged on the side wall of the insertion pipe close to the elastic clamping plate.

[0014] Compared with the related art, the gas cylinder connecting device has the following beneficial effects:

[0015] 1. The gas cylinder connecting device is provided with a sealing ring one between the insertion connecting pipe and the gas cylinder connecting pipe, a sealing gasket two between the limiting ring and the gas cylinder connecting pipe, a sealing ring two between the sliding connecting cylinder and the limiting ring, a sealing ring three between the abutting ring and the right side wall of the sliding connecting cylinder, and a sealing gasket one between the gas guide connecting pipe and the rotating cylinder, so that the sealing ring and the sealing gasket jointly act to effectively prevent gas leakage, improve the sealing performance of the device, and greatly improve the safety of the equipment.

[0016] 2. The gas cylinder connecting device is provided with a built-in gas pressure detection sensor, which can monitor the gas pressure change in real time, and is connected to an alarm through a control module, so that the alarm can be immediately sent once the gas pressure is found to be abnormal, and the use safety is further ensured.

[0017] 3. The gas cylinder connecting device is provided with an insertion pipe in the equipment connecting mechanism, the right side end of the insertion pipe extends to the inside of the connecting pipe of the gas equipment during use, and the rotating connecting ring is matched with the plurality of elastic clamping plates, the plurality of elastic clamping plates are used to clamp the connecting pipe on the gas equipment, and the firmness of the connecting part is improved. The right side port of the insertion pipe has a smaller diameter than the left side port, so that the insertion pipe can be inserted into different connecting pipes of different equipment during use of the device, and the adaptability of the device is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 is a schematic view of the three-dimensional structure of the utility model;

[0019] Figure 2 is a schematic view of the position section of the gas cylinder connecting mechanism of the utility model;

[0020] Figure 3 is Figure 2 is a local enlarged view of position A in the utility model;

[0021] Figure 4 is a schematic view of the equipment connecting mechanism of the utility model.

[0022] In the figure: 1, gas cylinder connecting pipe; 2, gas cylinder connecting mechanism; 3, gas guide pipe; 4, equipment connecting mechanism; 5, gas guide connecting pipe; 6, rotating cylinder; 7, gas pressure detection sensor; 8, sealing gasket one; 9, insertion connecting pipe; 10, sealing ring one; 11, sliding connecting cylinder; 12, limiting ring; 13, sealing gasket two; 14, abutting ring; 15, abutting spring; 16, sealing ring two; 17, sealing ring three; 18, rotating connecting ring; 19, insertion pipe; 20, outer sealing layer; 21, elastic clamping plate; 22, connecting plate. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] Please refer to Figures 1-4 The present application provides a technical solution: a gas cylinder connecting device, comprising a gas cylinder connecting pipe 1, the gas cylinder connecting pipe 1 is an outer thread connecting pipe arranged on a gas cylinder, a gas guide pipe 3 is arranged on the outer side of the gas cylinder connecting pipe 1, a gas cylinder connecting mechanism 2 is arranged between the gas guide pipe 3 and the gas cylinder connecting pipe 1, an equipment connecting mechanism 4 is arranged at the end of the gas guide pipe 3 away from the gas cylinder connecting pipe 1, and the equipment connecting mechanism 4 is used for connecting the gas guide pipe 3 with an external equipment;

[0025] The gas cylinder connecting mechanism 2 comprises a rotating cylinder 6 and a gas guide connecting pipe 5, an internally threaded connecting hole is formed in the left side wall of the rotating cylinder 6, the internally threaded connecting hole is matched with the gas cylinder connecting pipe 1, one end of the gas guide connecting pipe 5 is communicated with the gas guide pipe 3, the other end of the gas guide connecting pipe 5 penetrates through the side wall of the rotating cylinder 6 away from the internally threaded connecting hole and is fixedly connected with a sliding connecting cylinder 11, the gas guide connecting pipe 5 is rotationally connected with the rotating cylinder 6, a sealing gasket 1 8 is fixedly connected to the inner wall of the right side of the rotating cylinder 6, the sealing gasket 1 8 is annular, the inner side wall of the sealing gasket 1 8 abuts against the outer side wall of the gas guide connecting pipe 5, an insertion connecting pipe 9 is arranged in the inner side of the sliding connecting cylinder 1 1, the left side end of the insertion connecting pipe 9 penetrates through the side wall of the sliding connecting cylinder 1 1 away from the gas guide connecting pipe 5 and extends to the inner side of the gas cylinder connecting pipe 1, a plurality of sealing rings 1 0 are arranged between the gas cylinder connecting pipe 1 and the insertion connecting pipe 9, the inner side wall of the sealing ring 1 0 is fixedly connected with the outer side wall of the insertion connecting pipe 9, the outer side end of the sealing ring 1 0 abuts against the inner side wall of the gas cylinder connecting pipe 1, the insertion connecting pipe 9 is communicated with the gas guide connecting pipe 5 through the sliding connecting cylinder 1 1 ; an abutting ring 1 4 is slidingly connected in the sliding connecting cylinder 1 1, the inner side wall of the abutting ring 1 4 is fixedly connected with the outer side wall of the insertion connecting pipe 9, a limiting ring 1 2 is fixedly connected on the insertion connecting pipe 9, the limiting ring 1 2 is located between the sliding connecting cylinder 1 1 and the gas cylinder connecting pipe 1, a sealing gasket 2 13 is fixedly connected to the left side end of the limiting ring 1 2, the left side end of the sealing gasket 2 13 abuts against the right side end of the gas cylinder connecting pipe 1 ; a sealing ring 2 16 is arranged between the limiting ring 1 2 and the left side wall of the sliding connecting cylinder 1 1, a sealing ring 3 17 is arranged between the abutting ring 1 4 and the right side wall of the sliding connecting cylinder 1 1, the right side ends of the sealing ring 2 16 and the sealing ring 3 17 are respectively fixedly connected with the left side outer wall and the right side inner wall of the sliding connecting cylinder 1 1, the sealing ring 2 16 and the sealing ring 3 17 are designed in a hollow structure, the design of the hollow structure enables the sealing ring 2 16 and the sealing ring 3 17 to adapt to the pressure and temperature in different working environments, has good sealing performance and can be appropriately adjusted according to actual use conditions;

[0026] In use, the left end of the insertion connecting pipe 9 is ensured to be located on the left side of the rotating cylinder 6 under the action of the abutting spring 15, so that the user can smoothly extend the left end of the insertion connecting pipe 9 into the gas cylinder connecting pipe 1. With the insertion of the insertion connecting pipe 9, the gas cylinder connecting pipe 1 is in contact with the internal threaded hole on the left wall of the rotating cylinder 6, and the rotating cylinder 6 is rotated to cooperate with the gas cylinder connecting pipe 1. With the cooperation of the rotating cylinder 6 and the gas cylinder connecting pipe 1, the sealing pad two 13 on the left side of the limiting ring 12 abuts against the right end of the gas cylinder connecting pipe 1, the abutting ring 14 and the sliding connecting cylinder 11 slide relative to each other, and the abutting spring 15 is stretched. When the right end of the abutting ring 14 cooperates with the right wall of the sliding connecting cylinder 11 to clamp the sealing ring three 17, and the limiting ring 12 and the left wall of the sliding connecting cylinder 11 clamp the sealing ring two 16, it is paused. At this time, the communication between the gas cylinder connecting pipe 1 and the gas guide pipe 3 is completed. These sealing rings and sealing pads work together to effectively prevent gas leakage and improve the sealing performance of the device, greatly improving the safety of the equipment.

[0027] The abutting spring 15 is sleeved on the insertion connecting pipe 9, the left end of the abutting spring 15 abuts against the left inner wall of the sliding connecting cylinder 11, and the right end of the abutting spring 15 abuts against the left end of the abutting ring 14. When the device is idle, the left end of the insertion connecting pipe 9 is extended to the left side of the rotating cylinder 6 by the abutting spring 15, which facilitates the user to insert the insertion connecting pipe 9 into the gas cylinder connecting pipe 1 during installation.

[0028] The gas pressure detection sensor 7 is arranged in the rotating cylinder 6, the gas pressure detection sensor 7 is connected to the alarm through the control module, the built-in gas pressure detection sensor 7 can monitor the change of gas pressure in real time, and the alarm can be immediately sent through the control module connection once the abnormal gas pressure is found, further ensuring the safety in use.

[0029] The device connecting mechanism 4 comprises a connecting plate 22, the connecting plate 22 is provided with an insertion pipe 19 away from one side of the air guide pipe 3, the left side end of the insertion pipe 19 penetrates through the connecting plate 22 and communicates with the air guide pipe 3, a rotating connecting ring 18 is sleeved on the connecting plate 22, a plurality of elastic clamping plates 21 are fixedly connected to the right side wall of the connecting plate 22, the plurality of elastic clamping plates 21 are distributed in a circumferential array, the end of the elastic clamping plate 21 away from the air guide pipe 3 is inclinedly arranged away from the end of the insertion pipe 19, the inner side wall of the rotating connecting ring 18 is threadedly connected with the outer side wall of the elastic clamping plate 21, the right side end port of the insertion pipe 19 is smaller in diameter than the left side end port, an outer sealing layer 20 is arranged on the outer side wall of the insertion pipe 19, the outer sealing layer 20 is made of rubber material, an anti-skid groove is arranged on the side wall of the elastic clamping plate 21 close to the insertion pipe 19, when connected with the gas using device, the right side end of the insertion pipe 19 extends to the inner side of the connecting pipe of the gas using device, and the rotating connecting ring 18 is cooperated with the plurality of elastic clamping plates 21, the plurality of elastic clamping plates 21 clamp the connecting pipe on the gas using device, so that the firmness of the connecting portion is improved. The right side end port of the insertion pipe 19 is smaller in diameter than the left side end port in the device, so that the insertion pipe 19 can be inserted into different connecting pipes of different devices when the device is used, and the adaptability of the device is greatly improved.

[0030] Working principle: in use, under the action of abutment spring 15 ensure that the left side end of the insertion connecting pipe 9 is located in the left side of the rotating cylinder 6, ensure that the user can smoothly extend the left side end of the insertion connecting pipe 9 into the gas cylinder connecting pipe 1, with the insertion of the insertion connecting pipe 9, the gas cylinder connecting pipe 1 is in contact with the internal thread connecting hole on the left side wall of the rotating cylinder 6, and the rotating cylinder 6 is rotated to cooperate the rotating cylinder 6 with the gas cylinder connecting pipe 1, with the cooperation of the rotating cylinder 6 and the gas cylinder connecting pipe 1, the sealing pad two 13 on the left side of the limiting ring 12 abuts against the right side end of the gas cylinder connecting pipe 1, the abutment ring 14 and the sliding connection cylinder 11 slide relative to each other, and the abutment spring 15 is stretched, when the right side end of the abutment ring 14 cooperates with the right side wall of the sliding connection cylinder 11 to clamp the sealing ring three 17, and the limiting ring 12 and the left side wall of the sliding connection cylinder 11 clamp the sealing ring two 16, pause, at this time, the communication between the gas cylinder connecting pipe 1 and the air guide pipe 3 is completed, these sealing rings and sealing pads work together to effectively prevent gas leakage and improve the sealing performance of the device, greatly improving the safety of the equipment; when connected with the gas equipment, the right side end of the insertion pipe 19 extends to the inside of the connecting pipe of the gas equipment, and the rotating connecting ring 18 is used to cooperate with the elastic clamping plate 21 to clamp the connecting pipe of the gas equipment, thereby improving the firmness of the connection. The right side port diameter of the insertion pipe 19 in the device is smaller than the left side port diameter, so that the insertion pipe 19 can be inserted into different connecting pipes of different equipment when the device is used, greatly improving the adaptability of the device. The built-in gas pressure detection sensor 7 in the device can monitor the gas pressure change in real time, and through the control module connection alarm, once the abnormal gas pressure is found, the alarm can be sent immediately, further ensuring the safety in use.

Claims

1. A gas cylinder connection device, comprising a gas cylinder connecting pipe (1), characterized in that: The gas cylinder connecting pipe (1) is an external threaded connecting pipe installed on the gas cylinder. A gas guide pipe (3) is installed on the outside of the gas cylinder connecting pipe (1). A gas cylinder connecting mechanism (2) is installed between the gas guide pipe (3) and the gas cylinder connecting pipe (1). An equipment connecting mechanism (4) is installed at the end of the gas guide pipe (3) away from the gas cylinder connecting pipe (1). The equipment connecting mechanism (4) is used to connect the gas guide pipe (3) to external equipment. The gas cylinder connection mechanism (2) includes a rotating cylinder (6) and a gas guide pipe (5). The rotating cylinder (6) has an internal threaded connection hole on its left side wall, which is adapted to the gas cylinder connection pipe (1). One end of the gas guide pipe (5) is connected to the gas guide pipe (3), and the other end of the gas guide pipe (5) passes through the side wall of the rotating cylinder (6) away from the internal threaded connection hole and is fixedly connected to a sliding connection cylinder (11). A sealing gasket (8) is fixedly connected to the inner right side wall of the rotating cylinder (6). The sealing gasket (8) is annular, and the inner side wall of the sealing gasket (8) abuts against the outer side wall of the gas guide pipe (5). Next, an insertion connecting tube (9) is provided on the inner side of the sliding connecting tube (11). The left end of the insertion connecting tube (9) passes through the side wall of the sliding connecting tube (11) away from the gas guiding connecting tube (5) and extends to the inner side of the gas cylinder connecting tube (1). A plurality of sealing rings (10) are provided between the gas cylinder connecting tube (1) and the insertion connecting tube (9). The inner side wall of the sealing ring (10) is fixedly connected to the outer side wall of the insertion connecting tube (9). The outer end of the sealing ring (10) abuts against the inner side wall of the gas cylinder connecting tube (1). The insertion connecting tube (9) is connected to the gas guiding connecting tube (5) through the sliding connecting tube (11).

2. The gas cylinder connection device according to claim 1, characterized in that: A contact ring (14) is slidably connected inside the sliding connecting cylinder (11). The inner side wall of the contact ring (14) is fixedly connected to the outer side wall of the insertion connecting tube (9). A limiting ring (12) is fixedly connected on the insertion connecting tube (9). The limiting ring (12) is located between the sliding connecting cylinder (11) and the gas cylinder connecting tube (1). A sealing gasket (13) is fixedly connected to the left side end of the limiting ring (12). The left side end of the sealing gasket (13) abuts against the right side end of the gas cylinder connecting tube (1).

3. A gas cylinder connection device according to claim 2, characterized in that: A second sealing ring (16) is provided between the limiting ring (12) and the left side wall of the sliding connecting cylinder (11), and a third sealing ring (17) is provided between the abutting ring (14) and the right side wall of the sliding connecting cylinder (11). The right ends of the second sealing ring (16) and the third sealing ring (17) are fixedly connected to the left outer wall and the right inner wall of the sliding connecting cylinder (11), respectively.

4. A gas cylinder connection device according to claim 3, characterized in that: Both the second (16) and the third (17) sealing rings adopt a hollow structure design.

5. A gas cylinder connection device according to claim 2, characterized in that: An abutment spring (15) is fitted on the insertion connecting tube (9). The left end of the abutment spring (15) abuts against the left inner wall of the sliding connecting tube (11), and the right end of the abutment spring (15) abuts against the left end of the abutment ring (14).

6. A gas cylinder connection device according to claim 1, characterized in that: A pressure detection sensor (7) is provided inside the rotating cylinder (6), and the pressure detection sensor (7) is connected to an alarm through a control module.

7. A gas cylinder connection device according to claim 1, characterized in that: The device connection mechanism (4) includes a connecting plate (22). An insertion tube (19) is provided on the side of the connecting plate (22) away from the air guide tube (3). The left end of the insertion tube (19) passes through the connecting plate (22) and communicates with the air guide tube (3). A rotating connecting ring (18) is sleeved on the connecting plate (22). Several elastic clamping plates (21) are fixedly connected to the right side wall of the connecting plate (22). The several elastic clamping plates (21) are arranged in a circumferential array. The end of the elastic clamping plate (21) away from the air guide tube (3) is inclined to the end away from the insertion tube (19). The inner side wall of the rotating connecting ring (18) is threadedly connected to the outer side wall of the elastic clamping plate (21).

8. A gas cylinder connection device according to claim 7, characterized in that: The diameter of the right port of the insertion tube (19) is smaller than that of the left port. An outer sealing layer (20) is provided on the outer wall of the insertion tube (19). The outer sealing layer (20) is made of rubber. An anti-slip groove is provided on the side wall of the elastic clamping plate (21) near the insertion tube (19).

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