Liquefied gas steel cylinder water pressure testing equipment

Abstract

The utility model provides liquefied gas steel cylinder water pressure testing equipment, and relates to the technical field of water pressure testing equipment, the liquefied gas steel cylinder water pressure testing equipment comprises a base station, a fixing rod and a rotating plate, the bottom of the rotating plate is fixedly connected with an upper clamping block, the top of the base station is connected with a lower clamping block through a lifting mechanism, and one side of the rotating plate is provided with a pressurizing mechanism; when the output end of the hydraulic cylinder drives the hinge seat to move downwards, the hinge seat drives the rotating plate to rotate clockwise with the top end of the fixing rod as the circle center so as to drive the upper clamping block to be suspended above the lower clamping block, the rotating motor can simultaneously drive the two worms to rotate, the worms are meshed with the worm wheels, and the threaded sleeve and the worm wheels are fixed into a whole. The lower clamping block is used for driving the two threaded sleeves to rotate at the same time, the threaded sleeves are in threaded fit with the threaded rods, the two threaded rods are mutually limited, the threaded rods and the lower clamping block are fixed into a whole, the lower clamping block can be driven to move upwards, and the lower clamping block is driven to move upwards to clamp the liquefied gas steel cylinder.

Description

Technical Field

[0001] This utility model relates to the technical field of water pressure testing equipment, and in particular to a water pressure testing device for liquefied gas cylinders. Background Technology

[0002] For pressure vessels such as seamless steel gas cylinders, refillable welded gas cylinders, seamless aluminum alloy gas cylinders, or spiral wound gas cylinders, hydrostatic tests must be conducted regularly after manufacturing and during use to ensure their safety and sealing performance. Hydrostatic tests are especially important for seamless steel gas cylinders.

[0003] In the prior art, after the LPG cylinders are manufactured, they need to be subjected to water pressure testing. However, there is a lack of secure fastening for the LPG cylinders, and the LPG cylinders are bulky and not easy to move flexibly. They need to be transported and secured, which is inconvenient for further water pressure testing. Therefore, this utility model proposes a water pressure testing device for LPG cylinders to solve the above problems. Utility Model Content

[0004] To address the aforementioned problems, this utility model proposes a liquefied petroleum gas (LPG) cylinder water pressure testing device, which solves the problem that existing LPG cylinders are bulky, difficult to move flexibly, require transportation and fastening, and are inconvenient for further water pressure testing.

[0005] To achieve the purpose of this utility model, the utility model is implemented through the following technical solution: a liquefied gas cylinder water pressure testing device, including a base, a fixed rod and a rotating plate. The fixed rod is symmetrically fixedly connected to the back of the base, the rotating plate is hinged to the top of the fixed rod, the upper clamping block is fixedly connected to the bottom of the rotating plate, the lower clamping block is connected to the top of the base through a lifting mechanism, and a pressure boosting mechanism is provided on one side of the rotating plate.

[0006] A further improvement is made in that: the lifting mechanism includes a threaded sleeve, a worm gear, and a threaded rod; the top of the base is symmetrically and rotatably connected to the threaded sleeve; the threaded rod is threadedly connected inside the threaded sleeve; the top end of the threaded rod is fixedly connected to the bottom of the lower clamping block; and worm gears are symmetrically and rotatably connected to both sides of the base, with the worm gears meshing with the outer wall of the worm gear.

[0007] A further improvement is that a rotary motor is fixedly installed on one side of the base, the output end of the rotary motor is fixedly connected to one end of one of the worm gears, and the two worm gears are fixedly connected to each other through a connecting rod.

[0008] A further improvement is made in that: the pressurization mechanism includes a water pump, a water supply pipe, a metal hose, and a pressure gauge. The water pump is fixedly installed on the top of the rotating plate. The input end of the water pump is connected to the water supply pipe, and the output end of the water pump is connected to the metal hose. A pressure gauge is installed at one end of the metal hose, and one end of the pressure gauge is connected to the valve of the liquefied gas cylinder.

[0009] A further improvement is that: both the upper and lower clamping blocks are provided with arc-shaped grooves inside; the base is provided with symmetrical legs on both sides; and the base is provided with symmetrical rotating mechanisms on both sides.

[0010] A further improvement is that the rotating mechanism includes a hydraulic cylinder and a hinge seat. Hydraulic cylinders are symmetrically hinged to both sides of the base. The output end of the hydraulic cylinder is fixedly connected to the hinge seat. The output ends of the two hydraulic cylinders are respectively hinged to both sides of the bottom of the rotating plate through the hinge seat.

[0011] A further improvement is that a top block is symmetrically fixedly connected to one side of the rotating plate, and a support rod is symmetrically fixedly connected to one side of the base, with the top block and the support rod being vertically parallel.

[0012] The beneficial effects of this utility model are as follows: When the output end of the hydraulic cylinder drives the hinge seat to move downward, the hinge seat drives the rotating plate to rotate clockwise around the top of the fixed rod as the center, thereby driving the upper clamping block to suspend above the lower clamping block. The rotary motor can simultaneously drive the two worm gears to rotate. The worm gears mesh with the worm wheel, and the threaded sleeves are fixed to the worm wheel as a whole, thereby driving the two threaded sleeves to rotate simultaneously. The threaded sleeves are threadedly engaged with the threaded rods, and the two threaded rods limit each other. The threaded rods are fixed to the lower clamping block as a whole, which can drive the lower clamping block to move upward. The movement of the lower clamping block to the upper clamping block clamps the liquefied gas cylinder, thereby solving the problem in the prior art that the liquefied gas cylinder is bulky, not easy to move flexibly, requires transportation and fastening, and is inconvenient for further water pressure testing. Attached Figure Description

[0013] Figure 1 This is the front view of the present invention;

[0014] Figure 2 This is a side view of the present invention;

[0015] Figure 3 This is a schematic diagram of the lifting mechanism structure of this utility model;

[0016] Figure 4 This is a diagram showing the upper and lower clamping blocks of this utility model in their separated state.

[0017] The components are: 1. Base; 2. Fixed rod; 3. Rotating plate; 4. Upper clamping block; 5. Lower clamping block; 6. Hydraulic cylinder; 7. Hinge seat; 8. Water pump; 9. Water supply pipe; 10. Metal hose; 11. Pressure gauge; 12. Threaded sleeve; 13. Worm gear; 14. Rotary motor; 15. Connecting rod; 16. Worm; 17. Support rod; 18. Top block; 19. Threaded rod. Detailed Implementation

[0018] To deepen the understanding of this utility model, the following detailed description will be provided in conjunction with embodiments. These embodiments are only used to explain this utility model and do not constitute a limitation on the scope of protection of this utility model.

[0019] according to Figure 1 , 2 As shown in Figures 3 and 4, this embodiment proposes a liquefied petroleum gas (LPG) cylinder water pressure testing device, including a base 1, a fixed rod 2, and a rotating plate 3. The fixed rod 2 is symmetrically fixedly connected to the back of the base 1. The rotating plate 3 is hinged to the top of the fixed rod 2. An upper clamping block 4 is fixedly connected to the bottom of the rotating plate 3. A lower clamping block 5 is connected to the top of the base 1 via a lifting mechanism. A pressurizing mechanism is provided on one side of the rotating plate 3. The LPG cylinder is placed on top of the lower clamping block 5. Then, the rotating plate 3 is rotated clockwise to move the upper clamping block 4 above the lower clamping block 5. The lifting mechanism drives the lower clamping block 5 upward, causing the upper clamping block 4 and the lower clamping block 5 to pressurize the LPG cylinder. The top and bottom of the gas cylinder are clamped together to fix the liquefied gas cylinder above the base 1. Then, the pressurization mechanism is connected to the valve of the liquefied gas cylinder. The pressurization mechanism injects water into the inside of the liquefied gas cylinder to increase the pressure until the specified test pressure is reached. During the pressurization process, it is necessary to closely monitor the deformation and leakage of the cylinder. After reaching the test pressure, the pressure is kept stable for a period of time, usually from a few minutes to a few hours, to observe the deformation and leakage of the cylinder under long-term pressure. Finally, the lifting mechanism drives the lower clamp 5 to move downward, remove the liquefied gas cylinder from the top of the base 1, drain the water, and clean and dry the liquefied gas cylinder.

[0020] Both the upper clamping block 4 and the lower clamping block 5 have arc-shaped grooves inside. The base 1 has symmetrically arranged support legs on both sides, and a rotating mechanism is symmetrically arranged on both sides of the base 1. The rotating mechanism includes a hydraulic cylinder 6 and a hinge seat 7. Hydraulic cylinders 6 are symmetrically hinged to both sides of the base 1, and the output ends of the hydraulic cylinders 6 are fixedly connected to the hinge seats 7. The output ends of the two hydraulic cylinders 6 are respectively hinged to the two sides of the bottom of the rotating plate 3 through the hinge seats 7. A top block 18 is symmetrically fixedly connected to one side of the rotating plate 3, and a support rod 17 is symmetrically fixedly connected to one side of the base 1. The top block 18 and the support rod 17 are vertically parallel. The hydraulic cylinders 6... The output end of the hydraulic cylinder 6 drives the hinge seat 7 to move upward. The hinge seat 7 drives the rotating plate 3 to rotate counterclockwise around the top of the fixed rod 2, so as to separate the upper clamping block 4 from the lower clamping block 5. The liquefied gas cylinder can be taken out from above the base 1 or placed inside the lower clamping block 5. When the output end of the hydraulic cylinder 6 drives the hinge seat 7 to move downward, the hinge seat 7 drives the rotating plate 3 to rotate clockwise around the top of the fixed rod 2, so as to make the upper clamping block 4 suspend above the lower clamping block 5. The bottom end of the top block 18 contacts the top end of the support rod 17. The support rod 17 and the top block 18 cooperate to support the rotating plate 3 and the upper clamping block 4.

[0021] The lifting mechanism includes a threaded sleeve 12, a worm gear 13, and a threaded rod 19. The top of the base 1 is symmetrically and rotatably connected to the threaded sleeve 12, and the threaded rod 19 is threadedly connected inside the threaded sleeve 12. The top end of the threaded rod 19 is fixedly connected to the bottom of the lower clamping block 5. Worms 16 are symmetrically and rotatably connected to both sides of the base 1. The worms 16 mesh with the outer wall of the worm gear 13. A rotary motor 14 is fixedly installed on one side of the base 1. The output end of the rotary motor 14 is fixedly connected to one end of one of the worms 16. The two worms 16 are fixedly connected to each other by a connecting rod 15, which connects the two worms 16 into one unit. The output of the rotary motor 14... The output end is connected to one of the worm gears 16, so that the rotary motor 14 can drive both worm gears 16 to rotate simultaneously. The worm gear 16 meshes with the worm wheel 13. The threaded sleeve 12 is fixed to the worm wheel 13 as a whole, which is used to drive the two threaded sleeves 12 to rotate simultaneously. The threaded sleeve 12 is threadedly engaged with the threaded rod 19, and the two threaded rods 19 limit each other. The threaded rod 19 is fixed to the lower clamping block 5 as a whole, which can drive the lower clamping block 5 to move up and down reciprocally. The forward and reverse rotation of the rotary motor 14 can control the direction of movement of the lower clamping block 5, so that the lower clamping block 5 automatically rises or falls, driving the lower clamping block 5 to move to the upper clamping block 4 to clamp the liquefied gas cylinder, or driving the liquefied gas cylinder on the lower clamping block 5 to separate from the upper clamping block 4 and remove it.

[0022] The pressurization mechanism includes a water pump 8, a water supply pipe 9, a metal hose 10, and a pressure gauge 11. The water pump 8 is fixedly installed on the top of the rotating plate 3. The input end of the water pump 8 is connected to the water supply pipe 9, and the output end of the water pump 8 is connected to the metal hose 10. A pressure gauge 11 is installed at one end of the metal hose 10. One end of the pressure gauge 11 is connected to the valve of the liquefied gas cylinder. One end of the water supply pipe 9 is connected to an external water source. The water pump 8 draws water through the water supply pipe 9 and delivers the water into the interior of the liquefied gas cylinder through the metal hose 10 to inject water and pressurize the interior of the liquefied gas cylinder. The pressure change inside the liquefied gas cylinder is observed through the pressure gauge 11. After the pressure inside the liquefied gas cylinder reaches a certain value, it enters the pressure holding stage. The deformation and leakage of the cylinder under long-term pressure are observed through the change in the value of the pressure gauge 11.

[0023] In this liquefied petroleum gas (LPG) cylinder water pressure testing equipment, when the output end of the hydraulic cylinder 6 drives the hinge seat 7 to move downward, the hinge seat 7 drives the rotating plate 3 to rotate clockwise around the top of the fixed rod 2, thereby suspending the upper clamping block 4 above the lower clamping block 5. The rotary motor 14 can simultaneously drive the two worm gears 16 to rotate. The worm gears 16 mesh with the worm wheel 13, and the threaded sleeve 12 is fixed to the worm wheel 13 as a whole, thereby driving the two threaded sleeves 12 to rotate simultaneously. The threaded sleeves 12 are threadedly engaged with the threaded rods 19, and the two threaded rods 19 limit each other. The threaded rods 19 are fixed to the lower clamping block 5 as a whole, which can drive the lower clamping block 5 to move upward, thereby driving the lower clamping block 5 to move upward to clamp the LPG cylinder. This solves the problem in the existing technology that LPG cylinders are bulky, difficult to move flexibly, require transportation and fastening, and are inconvenient for further water pressure testing.

[0024] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A liquefied petroleum gas cylinder water pressure testing device, comprising a base (1), a fixed rod (2), and a rotating plate (3), characterized in that: A fixing rod (2) is symmetrically fixed to the back of the base (1). A rotating plate (3) is hinged to the top of the fixing rod (2). An upper clamping block (4) is fixedly connected to the bottom of the rotating plate (3). A lower clamping block (5) is connected to the top of the base (1) through a lifting mechanism. A pressurizing mechanism is provided on one side of the rotating plate (3). The lifting mechanism includes a threaded sleeve (12), a worm gear (13), and a threaded rod (19). The top of the base (1) is symmetrically and rotatably connected to the threaded sleeve (12). The threaded rod (19) is threadedly connected inside the threaded sleeve (12). The top end of the threaded rod (19) is fixedly connected to the bottom of the lower clamping block (5). The two sides of the base (1) are symmetrically and rotatably connected to the worm (16). The worm (16) meshes with the outer wall of the worm gear (13).

2. The liquefied petroleum gas cylinder water pressure testing device according to claim 1, characterized in that: A rotary motor (14) is fixedly installed on one side of the base (1). The output end of the rotary motor (14) is fixedly connected to one end of one of the worm gears (16). The two worm gears (16) are fixedly connected to each other through a connecting rod (15).

3. The liquefied petroleum gas cylinder water pressure testing device according to claim 1, characterized in that: The pressurization mechanism includes a water pump (8), a water supply pipe (9), a metal hose (10), and a pressure gauge (11). The water pump (8) is fixedly installed on the top of the rotating plate (3). The input end of the water pump (8) is connected to the water supply pipe (9), and the output end of the water pump (8) is connected to the metal hose (10). A pressure gauge (11) is installed at one end of the metal hose (10), and one end of the pressure gauge (11) is connected to the valve of the liquefied gas cylinder.

4. The liquefied petroleum gas cylinder water pressure testing device according to claim 1, characterized in that: The upper clamping block (4) and the lower clamping block (5) are both provided with arc-shaped grooves. The base (1) is provided with symmetrical legs on both sides and a rotating mechanism is provided on both sides of the base (1).

5. The liquefied petroleum gas cylinder water pressure testing device according to claim 4, characterized in that: The rotating mechanism includes a hydraulic cylinder (6) and a hinge seat (7). The two sides of the base (1) are symmetrically hinged with hydraulic cylinders (6). The output end of the hydraulic cylinder (6) is fixedly connected to the hinge seat (7). The output ends of the two hydraulic cylinders (6) are respectively hinged to the two sides of the bottom of the rotating plate (3) through the hinge seat (7).

6. The liquefied petroleum gas cylinder water pressure testing device according to claim 5, characterized in that: A top block (18) is symmetrically fixedly connected to one side of the rotating plate (3), and a support rod (17) is symmetrically fixedly connected to one side of the base (1). The top block (18) and the support rod (17) are parallel vertically.

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