Gas cylinder pressure reducer convenient to disassemble and assemble

Abstract

The gas cylinder pressure reducer comprises a front cover and a rear cover, an air inlet is formed in one side of the rear cover, an air outlet is formed in the other side of the rear cover, the front cover is arranged at the top of the rear cover, a diaphragm is arranged between the front cover and the rear cover, an adjusting rod is connected to the center of the diaphragm in an inserted mode, and the adjusting rod is connected with the rear cover in an inserted mode. A base is arranged between the adjusting rod at the bottom of the inner side of the rear cover and the air inlet, an adjusting plate is mounted at the top of the base, and a rubber plug is arranged at the bottom of one end of the adjusting plate; according to the gas cylinder pressure reducer convenient to disassemble and assemble, the connecting pipes on the left side and the right side can replace pipelines with different inner diameters to connect gas pipes with different specifications, the application range of the device is widened, the front cover can be opened by disassembling screws in the mounting holes to maintain the interior, and the pressure reducer is more convenient and faster to disassemble and assemble.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure reducers, in particular to a gas cylinder pressure reducer which is convenient to assemble and disassemble. Background Art

[0002] A gas cylinder pressure reducer is generally a pressure reducing device for bottled gas. When the inlet pressure and outlet flow rate change, the outlet pressure is guaranteed to remain stable. For example, the prior art: CN210661386U, a gas cylinder pressure reducer, the utility model includes a bottle body with an air inlet pipe and an air outlet pipe, the air inlet pipe is connected to a high pressure gauge, the air outlet pipe is connected to a low pressure gauge, a medium pressure chamber and a low pressure chamber are arranged in the bottle body, the medium pressure chamber is connected to the low pressure chamber through a connecting pipe, a sealing plug and a first elastic member are arranged in the medium pressure chamber, the sealing plug is against a push rod, a limiting ring is arranged in the bottle body, a sliding cavity is arranged on the lower side of the limiting ring, a closing disk is slidably embedded in the sliding cavity, an annular groove is provided on the side wall of the closing disk, an elastic ring is embedded in the annular groove, a sliding groove is arranged on the upper side of the limiting ring, a resisting rod is slidably embedded in the sliding groove, and a downward pressure device is arranged in the bottle body.

[0003] There are other existing technologies:

[0004] CN202149276U, a gas cylinder pressure reducer;

[0005] CN202719146U, a gas cylinder pressure reducer.

[0006] The gas cylinder pressure reducers mentioned in the above-mentioned prior art are relatively complicated to install as a whole and are not convenient to disassemble. Moreover, most of them do not have the function of regulating the gas pressure and cannot reduce the gas pressure to a suitable pressure as needed. Utility Model Content

[0007] The utility model aims to provide a gas cylinder pressure reducer which is convenient for disassembly and assembly, so as to solve the problems raised in the above-mentioned background technology.

[0008] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a gas cylinder pressure reducer that is easy to disassemble and assemble, includes a back cover, characterized in that: an air inlet hole is opened on one side of the back cover, an air outlet hole is opened on the other side of the back cover, a plug hole is opened on the top of the air inlet hole, a front cover is arranged on the top of the back cover, a diaphragm is arranged between the front cover and the back cover, an adjusting rod is inserted in the center of the diaphragm, diaphragm adjusting blocks are arranged on the top and back of the center position of the diaphragm, the diaphragm adjusting block is fixedly connected to the adjusting rod, a base is arranged between the adjusting rod and the air inlet hole at the bottom inner side of the back cover, an adjusting plate is installed on the top of the base, a rubber plug is arranged at the bottom of one end of the adjusting plate, the rubber plug is arranged in the plug hole, an adjusting rod is inserted at the other end of the adjusting plate, and adjusting plate adjusting blocks are arranged on the top and bottom of the adjusting plate at the position of the adjusting rod, and the adjusting plate adjusting block is fixedly connected to the adjusting rod.

[0009] Preferably, an adjustment hole is provided at the center of the top of the front cover, an adjustment knob is rotatably installed in the adjustment hole, a spring is provided between the bottom of the adjustment knob and the diaphragm, and threads are provided on the surface of the adjustment knob and the inner side of the adjustment hole.

[0010] Preferably, the rear cover and the front cover are provided with mounting holes near the outer edges.

[0011] Preferably, a connecting pipe is sleeved on the outer side of the air inlet and the air outlet.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The gas cylinder pressure reducer that is easy to disassemble and assemble can have connecting pipes of different inner diameters on the left and right sides replaced to connect gas pipes of different specifications, thereby improving the application range of the device. The front cover can be opened to repair the interior by removing the screws in the mounting holes, making the disassembly and installation of the pressure reducer more convenient and quick.

[0014] 2. The cylinder pressure reducer which is easy to disassemble and assemble, turns the adjusting knob to press down the diaphragm through the spring, so that the collision range of the diaphragm becomes smaller, thereby reducing the maximum value of the output air pressure of the pressure reducer to adjust the air pressure of the air outlet, and the use of the device is more flexible. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the utility model structure when it is opened;

[0017] Figure 3 This is a cross-sectional view of the utility model structure when it is closed.

[0018] In the figure: 1, back cover; 2, adjustment plate; 3, adjustment rod; 4, diaphragm; 5, front cover; 6, adjustment knob; 7, connecting tube; 101, air inlet; 102, air outlet; 103, plug hole; 104, base; 105, mounting hole; 201, rubber plug; 301, adjustment plate adjustment block; 302, diaphragm adjustment block; 501, adjustment hole; 502, spring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] Example: See Figure 1 The utility model provides a technical solution: a gas cylinder pressure reducer which is convenient for disassembly and assembly.

[0021] Among them, an air inlet 101 is opened on one side of the back cover 1, an air outlet 102 is opened on the other side of the back cover 1, a plug hole 103 is opened on the top of the air inlet hole 101, a front cover 5 is arranged on the top of the back cover 1, a diaphragm 4 is arranged between the front cover 5 and the back cover 1, an adjusting rod 3 is inserted in the center of the diaphragm 4, diaphragm adjusting blocks 302 are arranged on the top and back of the center position of the diaphragm 4, and the diaphragm adjusting block 302 is fixedly connected to the adjusting rod 3, a base 104 is arranged between the adjusting rod 3 and the air inlet 101 at the bottom of the inner side of the back cover 1, an adjusting plate 2 is installed on the top of the base 104, a rubber plug 201 is arranged at the bottom of one end of the adjusting plate 2, and the rubber plug 201 is arranged in the plug hole 103, the other end of the adjusting plate 2 is inserted with an adjusting rod 3, and an adjusting plate adjusting block 301 is arranged on the top and bottom of the adjusting plate 2 at the position of the adjusting rod 3, and the adjusting plate adjusting block 301 is fixedly connected to the adjusting rod 3.

[0022] In this embodiment, the front cover 5 and the rear cover 1 form an internal sealed space, and the air flow enters the interior through the air inlet 101 and is discharged through the air outlet 102. The diaphragm 4 is installed through the groove on the top of the rear cover 1, and then the front cover 5 is covered to fix it. The diaphragm 4 itself is made of rubber material, which isolates the interior into two spaces. When the internal air pressure is high, the air pressure in the space below the diaphragm 4 is high, and the air pressure above remains unchanged, thereby squeezing the diaphragm 4 to expand upward. The diaphragm adjusting block 302 is used to fix the diaphragm 4 on the adjusting rod 3 passing through the middle of the diaphragm 4, and at the same time ensures the sealing of the center passing position, so that the air flow will not run to the upper space. When the diaphragm 4 collides, it will drive the adjusting rod 3 to move upward and pull up the adjusting rod 3. When the air flow in the internal space is discharged from the air outlet 102, the air pressure drops, and the diaphragm 4 is pulled down by the gravity of the adjusting rod 3 to continuously discharge gas; the adjusting plate 2 on the top of the base 104 is connected to the base 104 through a cross bar, with the cross bar as the center The center of the regulating plate 2 can be pried back and forth. Generally, the rubber plug 201 at the bottom of the regulating plate 2 is inserted into the plug hole 103 to block the air inlet 101. At this time, the higher external air pressure gathers at the air inlet 101. As the air pressure increases, the rubber plug 201 is pushed open, the front end of the rubber plug 201 is lifted, and the air flow enters the internal space. As the air pressure continues to enter and squeeze the diaphragm 4, the upper space remains unchanged because of the air pressure. The diaphragm 4 drives the central regulating rod 3 to lift up, and the bottom of the regulating rod 3 pulls the regulating plate 2 through the regulating plate regulating block 301, so that one end of the regulating plate 2 at the regulating rod 2 rises, and the end of the regulating rod 2 at the plug hole 103 drops, and finally the rubber plug 201 is used to block the plug hole 103 to close the air inlet 101, preventing the diaphragm 4 from further expanding, so that the air pressure in the internal space is always stable within a standard, and the air pressure entering from the air inlet 101 is reduced in this way, and finally the gas is transported to the next area through the air outlet 102.

[0023] Among them, an adjustment hole 501 is opened at the center position of the top of the front cover 5, and an adjustment knob 6 is rotatably installed in the adjustment hole 501. A spring 502 is arranged between the bottom of the adjustment knob 6 and the diaphragm 4, and threads are opened on the surface of the adjustment knob 6 and the inner side of the adjustment hole 501.

[0024] In this embodiment, the adjusting knob 6 is fixed by the engagement of the outer thread and the thread in the adjusting hole 501. When the adjusting knob 6 is rotated, the adjusting knob 6 presses down the spring 502, reduces the maximum height of the diaphragm 4, and thus reduces the maximum value of the output air pressure of the pressure reducer to adjust the air pressure of the air outlet 102, and the use of the device is more flexible.

[0025] The rear cover 1 and the front cover 5 are provided with mounting holes 105 near the outer edges.

[0026] In this embodiment, screws are inserted into the mounting holes 105 to fix the rear cover 1 and the front cover 5, so as to install the locking pressure reducer. When the internal parts need to be repaired, the front cover 5 can be opened by removing the screws.

[0027] The air inlet 101 and the air outlet 102 are sleeved with a connecting pipe 7 on their outer sides.

[0028] In this embodiment, the connecting pipes 7 on the left and right sides can be replaced with pipes with different inner diameters to connect air pipes of different specifications, thereby improving the application range of the device.

[0029] Working principle: the air inlet 101 at both ends of the pressure reducer is installed with the air inlet pipe through the connecting pipe 7, and the air outlet 102 is installed with the air outlet pipe through the connecting pipe 7. The air pressure entering from the air inlet pipe is relatively large, and the higher external air pressure is gathered at the air inlet 101, which breaks open the rubber plug 201, lifts the front end of the adjustment plate 2, and the air flow enters the internal space. As the air continues to enter and squeeze the diaphragm 4, the upper space remains unchanged because of the air pressure. The diaphragm 4 drives the central adjustment rod 3 to lift up, and the bottom of the adjustment rod 3 pulls the adjustment plate 2 through the adjustment plate adjustment block 301, so that one end of the adjustment plate 2 at the adjustment rod 2 rises, and the end of the adjustment rod 2 at the plug hole 103 drops, and finally the rubber plug 201 blocks the plug hole 103 to close the air inlet 101, preventing the diaphragm 4 from further expanding, so that the air pressure in the internal space is always stable within a standard.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gas cylinder pressure reducer that is easy to disassemble and assemble, comprising a rear cover (1), characterized in that: An air inlet (101) is provided on one side of the rear cover (1), an air outlet (102) is provided on the other side of the rear cover (1), a plug hole (103) is provided on the top of the air inlet (101), a front cover (5) is provided on the top of the rear cover (1), a diaphragm (4) is provided between the front cover (5) and the rear cover (1), an adjustment rod (3) is inserted in the center of the diaphragm (4), a diaphragm adjustment block (302) is provided on the top and back of the center of the diaphragm (4), the diaphragm adjustment block (302) is fixedly connected to the adjustment rod (3), and the rear cover (1) A base (104) is provided between the inner bottom adjustment rod (3) and the air inlet (101); an adjustment plate (2) is mounted on the top of the base (104); a rubber plug (201) is provided at the bottom of one end of the adjustment plate (2); the rubber plug (201) is arranged inside the plug hole (103); the other end of the adjustment plate (2) is plugged with the adjustment rod (3); adjustment plate adjustment blocks (301) are provided at the top and bottom of the adjustment plate (2) at the position of the adjustment rod (3); the adjustment plate adjustment blocks (301) are fixedly connected to the adjustment rod (3).

2. The gas cylinder pressure reducer that is easy to disassemble and assemble according to claim 1, characterized in that: An adjustment hole (501) is provided at the center of the top of the front cover (5), an adjustment knob (6) is rotatably installed in the adjustment hole (501), a spring (502) is provided between the bottom of the adjustment knob (6) and the diaphragm (4), and threads are provided on the surface of the adjustment knob (6) and the inner side of the adjustment hole (501).

3. The conveniently disassembled gas cylinder pressure reducer according to claim 1, characterized in that: The rear cover (1) and the front cover (5) are provided with mounting holes (105) near the outer edges.

4. The gas cylinder pressure reducer that is easy to disassemble and assemble according to claim 1, characterized in that: A connecting pipe (7) is sleeved on the outside of the air inlet (101) and the air outlet (102).

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