Propane liquefied petroleum gas pressure regulating device

Abstract

The utility model discloses propane liquefied petroleum gas pressure regulating device relates to pressure regulating technical field, this propane liquefied petroleum gas pressure regulating device, including the jar body, the jar body is fixedly connected with the connector, the right side of connector is provided with the connecting pipe, be provided with pressure reducing valve on the connecting pipe, the outer surface of connecting pipe is opened the expansion slot, the bottom wall fixedly connected with first spring of expansion slot, the one end of first spring is fixedly connected with displacement disc, the fixedly connected with limit protruding on displacement disc, be provided with triangular guide plate on limit protruding, the right side surface fixedly connected with the fixed ring of connector, the outer surface of fixed ring is opened the through slot, when unlocking the connecting pipe, can complete unlocking through the rotation unlocking assembly one button, need not when unlocking with the aid of tool and insert the inside of expansion slot, greatly reduce the unlocking difficulty to further improve the efficiency of dismounting installation.

Description

Technical Field

[0001] This utility model relates to the field of pressure regulation technology, and in particular to a propane liquefied petroleum gas pressure regulating device. Background Technology

[0002] Propane liquefied petroleum gas (LPG) is a clean, combustible gas with propane as its main component (usually accounting for more than 70%, with a small amount of butane, etc.). It is a common type of LPG. It is gaseous at room temperature and pressure, but can be liquefied by pressurization or cooling (about -42°C), making it easy to store and transport in steel cylinders. It has both high energy density and portability. It has high combustion efficiency, with flame temperatures reaching over 1900°C. After combustion, it mainly produces carbon dioxide and water, resulting in less pollution. It is widely used in home cooking, industrial and commercial heating, outdoor camping stoves, and fuel for small vehicles. When using it, the high-pressure gas in the cylinder must be reduced to a low pressure through a pressure reducing valve before it is used in appliances. During operation, attention should be paid to ventilation to prevent safety risks caused by leaks.

[0003] When using propane liquefied petroleum gas, it is usually stored in a tank and equipped with a pressure regulator to adjust the internal pressure, such as the Chinese utility model patent with publication number CN219318216U. Although this patent can adjust the internal pressure and facilitate the disassembly, replacement or maintenance of the pressure reducing valve, it requires pressing two limit pins into two movable slots to unlock the valve. Due to the wall thickness, it is difficult to press the valve into place with just your fingers, which is inconvenient. In view of this, we have proposed a propane liquefied petroleum gas pressure regulating device. Utility Model Content

[0004] The purpose of this invention is to provide a propane liquefied petroleum gas pressure regulating device to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a propane liquefied petroleum gas pressure regulating device, comprising a tank body, a connector fixedly connected to the tank body, a connecting pipe provided on the right side of the connector, a pressure reducing valve provided on the connecting pipe, a telescopic groove formed on the outer surface of the connecting pipe, a first spring fixedly connected to the bottom wall of the telescopic groove, a displacement plate fixedly connected to the end of the first spring, a limit protrusion fixedly connected to the displacement plate, a triangular guide plate provided on the limit protrusion, a fixing ring fixedly connected to the right side surface of the connector, a through groove formed on the outer surface of the fixing ring, the through groove being adapted to the limit protrusion and the triangular guide plate, a motion cavity formed inside the connector, and an unlocking component provided inside the motion cavity.

[0006] Preferably, the unlocking component includes a torsion spring, which is fixedly connected to the left inner wall of the motion cavity, and a rotating disk is fixedly connected to the right end of the torsion spring. A limit ring is fixedly connected to the inner wall of the motion cavity.

[0007] Preferably, the rotating disk contacts the limiting ring, and a control ring is movably sleeved inside the motion cavity, with a guide rod fixedly connected to the left side surface of the control ring.

[0008] Preferably, the left end of the guide rod slides through the left side surface of the rotating disk, a second spring is fixedly connected between the left side surface of the control ring and the rotating disk, and a first annular groove communicating with the inside of the motion cavity is opened on the right side surface of the connector.

[0009] Preferably, the right side surface of the control ring extends out of the connector through a first annular groove, and the control ring is movably connected to the first annular groove.

[0010] Preferably, the inner wall of the control ring is provided with a guide groove, and an unlocking block is slidably connected inside the guide groove. The unlocking block is trapezoidal, and the outer surface of the fixed ring is provided with a first sliding groove that communicates with the inside of the through groove.

[0011] Preferably, the unlocking block is slidably connected inside the first sliding groove, and the inner wall of the motion cavity is provided with a second annular groove and a second sliding groove.

[0012] Preferably, the second sliding groove communicates with the second annular groove, and a sliding block is fixedly connected to the inner wall of the control ring, the sliding block being slidably connected inside the second sliding groove.

[0013] Compared with the prior art, the beneficial effects of this utility model are: 1. This propane liquefied petroleum gas pressure regulating device can unlock the connecting pipe with a single click by rotating the unlocking component, eliminating the need to insert tools into the telescopic groove during unlocking, thus significantly reducing the difficulty of unlocking and further improving the efficiency of disassembly and installation.

[0014] 2. When unlocking this propane liquefied petroleum gas pressure regulating device, the control ring must first be pulled out, and then rotated to complete the unlocking. This effectively prevents accidental contact and internal gas leakage during daily use due to overly convenient operation. The torsion spring and the second spring can automatically reset the control ring after releasing the handle, and the pressure reducing valve can effectively regulate the outlet pressure through throttling. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1This is a schematic diagram of the propane liquefied petroleum gas pressure regulating device of this utility model; Figure 2 This is a schematic diagram of the first spring of this utility model; Figure 3 This is a schematic diagram of the interior of the motion cavity of this utility model; Figure 4 This is a schematic diagram showing the separation of the unlocking component of this utility model; Figure 5 This is a schematic diagram of the second sliding groove of this utility model.

[0016] Reference numerals: 1. Tank body; 2. Connector; 3. Connecting pipe; 4. Pressure reducing valve; 5. Telescopic groove; 6. First spring; 7. Displacement disc; 8. Limiting protrusion; 9. Triangular guide plate; 10. Fixing ring; 11. Through groove; 12. Motion cavity; 13. Torsion spring; 14. Rotating disc; 15. Limiting ring; 16. Control ring; 17. Guide rod; 18. Second spring; 19. First annular groove; 20. Guide groove; 21. Unlocking block; 22. First sliding groove; 23. Second annular groove; 24. Second sliding groove; 25. Sliding block. Detailed Implementation

[0017] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0018] Please see Figure 1-5 This utility model provides a technical solution: a propane liquefied petroleum gas pressure regulating device, including a tank body 1, a connector 2 fixedly connected to the tank body 1, a connecting pipe 3 provided on the right side of the connector 2, a pressure reducing valve 4 provided on the connecting pipe 3, a telescopic groove 5 opened on the outer surface of the connecting pipe 3, a first spring 6 fixedly connected to the bottom wall of the telescopic groove 5, a displacement plate 7 fixedly connected to the end of the first spring 6, a limiting protrusion 8 fixedly connected to the displacement plate 7, a triangular guide plate 9 provided on the limiting protrusion 8, a fixing ring 10 fixedly connected to the right surface of the connector 2, a through groove 11 opened on the outer surface of the fixing ring 10, the through groove 11 being adapted to the limiting protrusion 8 and the triangular guide plate 9, a moving cavity 12 opened inside the connector 2, an unlocking component provided inside the moving cavity 12, when unlocking the connecting pipe 3, the unlocking can be completed with one click by rotating the unlocking component, without the need to insert a tool into the telescopic groove 5 during unlocking, greatly reducing the difficulty of unlocking, thereby further improving the efficiency of disassembly and installation.

[0019] Furthermore, the unlocking component includes a torsion spring 13, which is fixedly connected to the left inner wall of the motion cavity 12. A rotating disk 14 is fixedly connected to the right end of the torsion spring 13. A limit ring 15 is fixedly connected to the inner wall of the motion cavity 12, and the rotating disk 14 contacts the limit ring 15. A control ring 16 is movably fitted inside the motion cavity 12. A guide rod 17 is fixedly connected to the left surface of the control ring 16, and the left end of the guide rod 17 slides through the left surface of the rotating disk 14. A second spring 18 is fixedly connected between the left surface of the control ring 16 and the rotating disk 14. A first annular groove 19 communicating with the interior of the motion cavity 12 is opened on the right surface of the connector 2. The right surface of the control ring 16 extends out of the connector 2 through the first annular groove 19, and the control ring 16 is movably connected to the first annular groove 19. A guide groove 20 is opened on the inner wall of the control ring 16, and a sliding connection is made inside the guide groove 20. The unlocking block 21 is trapezoidal in shape. The outer surface of the fixing ring 10 has a first sliding groove 22 that communicates with the inside of the through groove 11. The unlocking block 21 is slidably connected inside the first sliding groove 22. The inner wall of the motion cavity 12 has a second annular groove 23 and a second sliding groove 24 that communicate with the second annular groove 23. The inner wall of the control ring 16 is fixedly connected to a sliding block 25, which is slidably connected inside the second sliding groove 24. When unlocking, the control ring 16 must first be pulled out, and then rotated to complete the unlocking. This effectively prevents accidental contact and internal gas leakage during daily use due to overly convenient operation. The torsion spring 13 and the second spring 18 can automatically reset the control ring 16 after releasing the hand, and the pressure reducing valve 4 can effectively regulate the outlet pressure through throttling.

[0020] Among them, the pressure reducing valve 4 is existing technology, which mainly reduces the inlet pressure to the required outlet pressure through the throttling effect of the opening and closing element, and will not be described in detail here.

[0021] Working principle: When connecting the connecting pipe 3 and the connector 2, first align the limiting protrusion 8 on the connecting pipe 3 with the through groove 11 on the fixing ring 10, then push the connecting pipe 3 towards the connector 2. With the help of the inclined surface of the triangular guide plate 9, it is squeezed and moved when it contacts the fixing ring 10. When the triangular guide plate 9, the limiting protrusion 8, and the displacement disk 7 move, the first spring 6 is compressed simultaneously. When the limiting protrusion 8 aligns with the through groove 11, the elastic force of the first spring 6 pushes the limiting protrusion 8 into the through groove 11 to complete the locking. When unlocking, first pull the control ring 16 outwards. When the control ring 16 moves, the unlocking block 21 can slide inside the guide groove 20, and the movement trajectory of the unlocking block 21 is restricted by the first sliding groove 22. When the control ring 16 moves horizontally, the unlocking block 21 will not slide inside the first sliding groove 22. When the control ring 16 moves, it will simultaneously stretch the second spring 18 and drive the sliding block 25 from inside the second sliding groove 24 to inside the second annular groove 23. At this time, the control ring 16 can rotate without the restriction of the sliding block 25 and the second sliding groove 24. When the control ring 16 is rotated, it will simultaneously drive the guide rod 17 to rotate, and then drive the rotating disk 14 to rotate with the help of the guide rod 17. The rotation of the rotating disk 14 will compress the torsion spring 13. At this time, the rotation of the control ring 16 will drive the unlocking block 21 to rotate. After the unlocking block 21 rotates, it will use its own inclined surface to squeeze the limiting protrusion 8, forcing the limiting protrusion 8 to retract into the telescopic groove 5. At this time, the connecting pipe 3 can be pulled directly to complete the unlocking.

[0022] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A propane liquefied petroleum gas pressure regulating device, comprising a tank (1), characterized in that: A connector (2) is fixedly connected to the tank (1). A connecting pipe (3) is provided on the right side of the connector (2). A pressure reducing valve (4) is provided on the connecting pipe (3). A telescopic groove (5) is provided on the outer surface of the connecting pipe (3). A first spring (6) is fixedly connected to the bottom wall of the telescopic groove (5). A displacement disk (7) is fixedly connected to the end of the first spring (6). A limit protrusion (8) is fixedly connected to the displacement disk (7). A triangular guide plate (9) is provided on the limit protrusion (8). A fixing ring (10) is fixedly connected to the right surface of the connector (2). A through groove (11) is provided on the outer surface of the fixing ring (10). The through groove (11) is adapted to the limit protrusion (8) and the triangular guide plate (9). A motion cavity (12) is provided inside the connector (2). An unlocking component is provided inside the motion cavity (12).

2. The propane liquefied petroleum gas pressure regulating device according to claim 1, characterized in that: The unlocking component includes a torsion spring (13), which is fixedly connected to the left inner wall of the motion cavity (12). A rotating disk (14) is fixedly connected to the right end of the torsion spring (13), and a limit ring (15) is fixedly connected to the inner wall of the motion cavity (12).

3. The propane liquefied petroleum gas pressure regulating device according to claim 2, characterized in that: The rotating disk (14) contacts the limiting ring (15), and the control ring (16) is movably sleeved inside the motion cavity (12). A guide rod (17) is fixedly connected to the left side surface of the control ring (16).

4. The propane liquefied petroleum gas pressure regulating device according to claim 3, characterized in that: The left end of the guide rod (17) slides through the left side surface of the rotating disk (14), and a second spring (18) is fixedly connected between the left side surface of the control ring (16) and the rotating disk (14). The right side surface of the connector (2) is provided with a first annular groove (19) that communicates with the inside of the motion cavity (12).

5. The propane liquefied petroleum gas pressure regulating device according to claim 4, characterized in that: The right side surface of the control ring (16) extends out of the connector (2) through the first annular groove (19), and the control ring (16) is movably connected to the first annular groove (19).

6. The propane liquefied petroleum gas pressure regulating device according to claim 5, characterized in that: The inner wall of the control ring (16) is provided with a guide groove (20), and an unlocking block (21) is slidably connected inside the guide groove (20). The unlocking block (21) is set in a trapezoidal shape, and the outer surface of the fixing ring (10) is provided with a first sliding groove (22) that communicates with the inside of the through groove (11).

7. The propane liquefied petroleum gas pressure regulating device according to claim 6, characterized in that: The unlocking block (21) is slidably connected inside the first sliding groove (22), the inner wall of the motion cavity (12) is provided with a second annular groove (23), and the inner wall of the motion cavity (12) is provided with a second sliding groove (24).

8. The propane liquefied petroleum gas pressure regulating device according to claim 7, characterized in that: The second sliding groove (24) communicates with the second annular groove (23), and a sliding block (25) is fixedly connected to the inner wall of the control ring (16), and the sliding block (25) is slidably connected inside the second sliding groove (24).

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