Centralized gas supply device capable of keeping continuous gas supply

Abstract

The utility model provides a central air supply device capable of keeping continuous air supply, which comprises an air storage tank, an air compression mechanism is arranged on the upper portion of the outer surface of the air storage tank, a deflation valve used for being connected with a hose is arranged at one end of the air storage tank, and an expansion rubber pipe used for being sleeved on the hose is arranged on one side, away from the air storage tank, of the deflation valve. The expansion rubber pipe is of an annular structure, two sets of connecting pieces are installed between the expansion rubber pipe and the air storage tank, and an inflation valve is installed on the outer surface of the expansion rubber pipe. The probability of separation of the connecting part of the hose and the deflation valve is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to a centralized gas supply device which can keep continuous gas supply, and belongs to the technical field of air compression. BACKGROUND

[0002] An air compressor is a mechanical device that compresses and stores high-pressure gas. It absorbs air from the outside environment and compresses it to a higher pressure, providing power support or gas supply for various industrial, commercial and daily life scenarios. The air storage tank is a container for storing compressed air in the air compressor. The air storage tank is provided with a gas discharge valve for connecting a hose. When the gas discharge valve is opened, the compressed air in the air storage tank can flow into the gas terminal through the hose. The end of the hose away from the gas discharge valve is also provided with a valve to facilitate pulling the end of the hose away from the gas discharge valve to an area away from the air storage tank for use. During the pulling process of the hose, the end of the hose close to the gas discharge valve is prone to excessive bending. At this time, the connection part of the hose and the gas discharge valve is prone to disconnection due to stress caused by poor compression of air, and the excessively bent hose affects the normal transportation of compressed air. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model aims to provide a centralized gas supply device which can keep continuous gas supply to solve the problems raised in the background art. The utility model prevents the end of the hose close to the gas discharge valve from being excessively bent, facilitates the normal transportation of compressed air, and reduces the probability of disconnection of the connection part of the hose and the gas discharge valve.

[0004] To achieve the above-mentioned purpose, the utility model is implemented by the following technical scheme: a centralized gas supply device which can keep continuous gas supply, comprising an air storage tank, an air compression mechanism is installed on the outer surface of the air storage tank at the upper position, a gas discharge valve for connecting a hose is installed at one end of the air storage tank, an inflatable rubber tube for being sleeved on the hose is arranged on the side of the gas discharge valve away from the air storage tank, the inflatable rubber tube is of annular structure, two groups of connecting pieces are installed between the inflatable rubber tube and the air storage tank, and an inflation valve is installed on the outer surface of the inflatable rubber tube.

[0005] Further, the connecting piece comprises a cross pipe, two parallel arranged cross pipes are arranged on the outer side of the gas discharge valve, one end of the cross pipe is connected and fixed with the air storage tank, a support rod is inserted in the cross pipe, one end of the support rod on the outer side of the cross pipe is connected with the inflatable rubber tube, and a positioning screw for limiting the relative position of the cross pipe and the support rod is threadedly connected with one end of the cross pipe close to the inflatable rubber tube.

[0006] Further, two rubber seats are pasted on the outer surface of the inflatable rubber tube by glue, and one end of the support rod on the outer side of the cross pipe is connected with the rubber seat.

[0007] Furthermore, a blind hole is provided on the side of the rubber seat facing the support rod, and the end of the support rod located on the outside of the horizontal tube is glued into the blind hole.

[0008] Furthermore, a threaded sleeve with the same internal space as the horizontal tube is installed on the upper part of the outer surface of the end of the horizontal tube away from the gas storage tank. The positioning screw is threaded into the threaded sleeve, and one end of the positioning screw is in contact with the support rod.

[0009] Furthermore, the air compression mechanism includes a motor, a support is installed on the upper part of the outer surface of the air tank, the motor and the compression cylinder are installed on the upper surface of the support, a large pulley is installed on the input shaft of the compression cylinder, a small pulley is installed on the output shaft of the motor, the small pulley is connected to the large pulley through a transmission belt, and the air outlet of the compression cylinder is connected to the air tank through a connecting pipe.

[0010] Furthermore, a mesh frame is installed on the outer surface of the gas storage tank, and the large pulley and small pulley are arranged inside the mesh frame.

[0011] Furthermore, a pull rod is installed at the end of the gas tank near the vent valve, a handle is fixedly connected to the end of the gas tank away from the pull rod, two wheels are installed at the lower part of the end of the gas tank near the handle, and swivel casters are installed at the lower part of the end of the gas tank near the pull rod.

[0012] Furthermore, a drain port is installed at the bottom of the gas storage tank, and a plug is threaded to the lower end of the drain port.

[0013] The beneficial effects of this utility model are:

[0014] 1. Adjust the length of the support rod inside the horizontal tube. At this time, the distance between the expansion rubber tube and the gas tank will change. After the position of the expansion rubber tube meets the requirements, use the positioning screw to limit the relative position of the support rod and the horizontal tube, so as to adjust the relative position of the expansion rubber tube and the hose connected to the vent valve as needed.

[0015] 2. Connect the inflation valve to the air outlet of the inflation device to inject air into the expansion rubber tube, thereby making the expansion rubber tube thicker. Conversely, release some air from the expansion rubber tube to make it thinner. With the support of the expansion rubber tube, the curvature of the hose connected to the deflation valve changes, and the end of the hose near the deflation valve will not be excessively bent due to pulling. This facilitates the normal delivery of compressed air and reduces the probability of the hose and deflation valve connection separating. Attached Figure Description

[0016] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0017] Figure 1 This is a schematic diagram of the structure of a centralized gas supply device that can maintain a continuous gas supply according to the present invention;

[0018] Figure 2 This is another perspective view of a centralized gas supply device that can maintain a continuous gas supply according to the present invention.

[0019] Figure 3 This is a schematic diagram of the assembly of the horizontal pipe, the vent valve and the gas storage tank in a centralized gas supply device that can maintain a continuous gas supply according to this utility model.

[0020] Figure 4 This is a schematic diagram of the assembly of the horizontal pipe, branch pipe and expansion rubber hose in a centralized gas supply device that can maintain continuous gas supply according to this utility model.

[0021] In the diagram: 1-Air tank, 2-Wheel caster, 3-Pull rod, 4-Inflation valve, 5-Expansion rubber hose, 6-Rubber seat, 7-Small pulley, 8-Wire mesh frame, 9-Large pulley, 10-Handle lever, 11-Wheel, 12-Plug, 13-Compressor cylinder, 14-Support, 15-Motor, 16-Air release valve, 17-Horizontal tube, 18-Support rod, 19-Threaded sleeve, 20-Positioning screw. Detailed Implementation

[0022] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0023] Please see Figures 1-3This utility model provides a technical solution: a centralized gas supply device that can maintain a continuous gas supply, including a gas storage tank 1. A support 14 is installed on the upper part of the outer surface of the gas storage tank 1. A motor 15 and a compression cylinder 13 are installed on the upper surface of the support 14. A large pulley 9 is installed on the input shaft of the compression cylinder 13, and a small pulley 7 is installed on the output shaft of the motor 15. The small pulley 7 is connected to the large pulley 9 via a transmission belt. The air outlet of the compression cylinder 13 is connected to the gas storage tank 1 via a connecting pipe. When the motor 15 is working, the piston in the compression cylinder 13 moves repeatedly through the transmission of the small pulley 7, the transmission belt, and the large pulley 9, thereby compressing air into the gas storage tank 1 and opening the vent valve 1. After 6, to facilitate continuous gas supply, a mesh frame 8 is installed on the outer surface of the gas tank 1, so that the large pulley 9 and the small pulley are placed inside the mesh frame 8, which improves safety. A pull rod 3 is installed at the end of the gas tank 1 near the vent valve 16, and a fixed handle rod 10 is connected to the end of the gas tank 1 away from the pull rod 3, which makes it easy to lift one end of the gas tank 1. Two wheels 11 are installed at the lower part of the end of the gas tank 1 near the handle rod 10, and universal wheels 2 are installed at the lower part of the end of the gas tank 1 near the pull rod 3, which facilitates the movement of the gas tank 1. A drain port is installed at the bottom of the gas tank 1, and a plug 12 is threaded to the lower end of the drain port. After the gas tank 1 is free of compressed air, the plug 12 can be removed to facilitate the drainage of water in the gas tank 1.

[0024] See Figures 1-4 One end of the air tank 1 is equipped with a vent valve 16 for connecting a hose. On the side of the vent valve 16 away from the air tank 1, there is an expansion rubber tube 5 for being fitted onto the hose. The expansion rubber tube 5 has a ring structure, and an inflation valve 4 is installed on the outer surface of the expansion rubber tube 5. The inflation valve 4 is connected to the air outlet of the inflation device, so that air is injected into the expansion rubber tube 5 by the inflation device, thereby making the expansion rubber tube 5 thicker. Conversely, some air is released from the expansion rubber tube 5, making the expansion rubber tube 5 thinner. Under the support of the expansion rubber tube 5, the curvature of the hose connected to the vent valve 16 changes, and the end of the hose near the vent valve 16 will not be excessively bent due to pulling, which facilitates the normal delivery of compressed air and reduces the probability of the hose and the vent valve 16 connection becoming detached.

[0025] See Figures 1-4Two parallel horizontal pipes 17 are provided on the outside of the vent valve 16. One end of the horizontal pipe 17 is connected and fixed to the gas storage tank 1. A support rod 18 is inserted inside the horizontal pipe 17. Two rubber seats 6 are glued to the outer surface of the expansion rubber tube 5. The end of the support rod 18 on the outside of the horizontal pipe 17 is connected to the rubber seat 6. The side of the rubber seat 6 facing the support rod 18 has a blind hole, so that the end of the support rod 18 on the outside of the horizontal pipe 17 is glued into the blind hole, which improves the stability of the connection between the support rod 18 and the rubber seat 6. The upper part of the outer surface of the end of the horizontal pipe 17 away from the gas storage tank 1 is installed with A threaded sleeve 19 with the same internal space as the horizontal tube 17 is provided, so that the positioning screw 20 is threadedly connected to the threaded sleeve 19, thereby achieving a stable connection between the positioning screw 20 and the horizontal tube 17. One end of the positioning screw 20 contacts the support rod 18, and the length of the support rod 18 inside the horizontal tube 17 is adjusted. At this time, the distance between the expansion rubber tube 5 and the gas tank 1 changes. When the position of the expansion rubber tube 5 meets the requirements, the positioning screw 20 is used to limit the relative position of the support rod 18 and the horizontal tube 17, thereby achieving the adjustment of the relative position of the expansion rubber tube 5 and the hose connected to the vent valve 16 as needed.

[0026] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A centralized gas supply device capable of maintaining a continuous gas supply, comprising a gas storage tank (1), characterized in that: An air compression mechanism is installed on the upper part of the outer surface of the air tank (1). A vent valve (16) for connecting a hose is installed at one end of the air tank (1). An expansion rubber tube (5) for sleeved on the hose is provided on the side of the vent valve (16) away from the air tank (1). The expansion rubber tube (5) has a ring structure. Two sets of connectors are installed between the expansion rubber tube (5) and the air tank (1). An inflation valve (4) is installed on the outer surface of the expansion rubber tube (5).

2. A centralized gas supply device capable of maintaining continuous gas supply according to claim 1, characterized in that: The connector includes a horizontal tube (17). Two parallel horizontal tubes (17) are provided on the outside of the vent valve (16). One end of the horizontal tube (17) is connected and fixed to the gas storage tank (1). A support rod (18) is inserted inside the horizontal tube (17). The end of the support rod (18) on the outside of the horizontal tube (17) is connected to the expansion rubber tube (5). The end of the horizontal tube (17) near the expansion rubber tube (5) is threaded with a positioning screw (20) for limiting the relative position of the horizontal tube (17) and the support rod (18).

3. A centralized gas supply device capable of maintaining continuous gas supply according to claim 2, characterized in that: The outer surface of the expansion rubber tube (5) is glued with two rubber seats (6), and the end of the support rod (18) located outside the horizontal tube (17) is connected to the rubber seat (6).

4. A centralized gas supply device capable of maintaining continuous gas supply according to claim 3, characterized in that: The rubber seat (6) has a blind hole on the side facing the support rod (18), and the end of the support rod (18) located outside the horizontal tube (17) is glued into the blind hole.

5. A centralized gas supply device capable of maintaining continuous gas supply according to claim 4, characterized in that: A threaded sleeve (19) with the same internal space as the horizontal tube (17) is installed on the upper part of the outer surface of the end of the horizontal tube (17) away from the gas storage tank (1). The positioning screw (20) is threadedly connected in the threaded sleeve (19), and one end of the positioning screw (20) is in contact with the support rod (18).

6. A centralized gas supply device capable of maintaining continuous gas supply according to claim 1, characterized in that: The air compression mechanism includes a motor (15), a support (14) is installed on the upper part of the outer surface of the air tank (1), the motor (15) and the compression cylinder (13) are installed on the upper surface of the support (14), a large pulley (9) is installed on the input shaft of the compression cylinder (13), a small pulley (7) is installed on the output shaft of the motor (15), the small pulley (7) is connected to the large pulley (9) through a transmission belt, and the air outlet of the compression cylinder (13) is connected to the air tank (1) through a connecting pipe.

7. A centralized gas supply device capable of maintaining continuous gas supply according to claim 6, characterized in that: A mesh frame (8) is installed on the outer surface of the gas storage tank (1), and the large pulley (9) and the small pulley are set inside the mesh frame (8).

8. A centralized gas supply device capable of maintaining continuous gas supply according to claim 1, characterized in that: A pull rod (3) is installed at one end of the gas tank (1) near the vent valve (16), and a handle rod (10) is connected and fixed at the other end of the gas tank (1) away from the pull rod (3). Two wheels (11) are installed at the lower part of the end of the gas tank (1) near the handle rod (10), and a caster wheel (2) is installed at the lower part of the end of the gas tank (1) near the pull rod (3).

9. A centralized gas supply device capable of maintaining continuous gas supply according to claim 1, characterized in that: The gas storage tank (1) is equipped with a drain port at the bottom, and a plug (12) is threaded to the lower end of the drain port.

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