Protective explosion-proof device for water pressure test

Abstract

The utility model relates to the technical field of water pressure test explosion prevention, and provides a protective explosion-proof device for a water pressure test, which comprises a sleeve seat, an inner cylinder fixedly connected in the sleeve seat, a buckling cover assembly arranged on the upper portion of the inner cylinder, and an inner buckling assembly arranged on the inner side and the outer side of the inner cylinder and used for sealing and buckling the inner cylinder and the buckling cover assembly. A pressure relief assembly capable of automatically bouncing off to relieve pressure when the water pressure in the inner cylinder reaches a threshold value is further arranged in the cover buckling assembly, specifically, a stepping motor is adopted to drive a worm-worm gear transmission system, a gear ring is driven to rotate, a push rod is pushed to be inserted into an insertion groove of the cover buckling assembly, and one-key type automatic buckling is achieved; by means of the design, the problems that in the prior art, the safety is insufficient when a hinge part is manually operated to complete buckling, and buckling sealing is not tight easily occur are solved.

Description

Technical Field

[0001] This utility model relates to the field of explosion-proof technology for water pressure testing, specifically, to a protective explosion-proof device for water pressure testing. Background Technology

[0002] Pressure testing is a crucial method for verifying the strength and sealing of pressure-bearing components such as equipment and pipelines. However, the potential risks during high-pressure testing cannot be ignored, making protective and explosion-proof measures essential. The purpose of protection is to ensure personnel safety and equipment integrity. High-pressure water flow has tremendous impact force; in the event of a leak or rupture, the splashing water can cause cuts and impact injuries. If a high-pressure component suddenly ruptures, flying fragments can also endanger nearby personnel. Protective devices such as guardrails and protective covers can effectively isolate dangerous areas, prevent direct contact with personnel, and reduce the risk of accidental injury. The purpose of explosion-proof measures is to prevent explosions caused by uncontrolled pressure. When the test pressure exceeds the equipment's tolerance limit, or if the equipment has defects, it may trigger a violent explosion, causing significant casualties and property damage. Explosion-proof measures include using explosion-proof testing equipment, installing safety valves and pressure sensors, monitoring pressure changes in real time, and immediately releasing pressure in case of overpressure to prevent a continuous rise in pressure leading to an explosion, ensuring a safe and controllable testing process.

[0003] A search revealed that CN216667282U discloses a protective explosion-proof device for water pressure testing of concrete conveying hoses. The device comprises a base plate with legs fixedly welded to both ends on one side surface, an inclined rod fixedly connected to one end of the other side surface, a support plate fixedly welded to one end of the inclined rod, a lower semi-cylinder fixedly welded to the surface of the base plate, a hinge seat fixedly connected to one side surface of the lower semi-cylinder, an upper semi-cylinder hinged to the surface of the hinge seat, and the surface of the upper semi-cylinder slidably connected to the surface of the lower semi-cylinder. Semi-circular plates are fixedly connected to both ends of the lower and upper semi-cylinders, with a semi-circular through hole at the center of the surface of each semi-circular plate. A handle is fixedly welded to one side surface of the upper semi-cylinder. This design significantly improves ease of use and stability, ensuring safety and efficiency.

[0004] The aforementioned protective explosion-proof device for water pressure testing of concrete conveying hoses adopts a hinged upper and lower semi-cylinder structure. The hinged components require manual operation to engage. However, under high-pressure testing conditions, manual operation is inefficient and cannot quickly achieve a seal. Furthermore, manual engagement is prone to errors that can lead to incomplete sealing and leakage risks. Utility Model Content

[0005] This utility model proposes a protective explosion-proof device for water pressure testing, which solves the problems of insufficient safety and poor sealing of the existing technology when manually operating the hinged parts to complete the fastening.

[0006] The technical solution of this utility model is as follows: a protective explosion-proof device for water pressure testing, including a sleeve, an inner cylinder fixedly connected inside the sleeve, a cover assembly provided on the upper part of the inner cylinder, an inner fastening assembly provided on the inner and outer sides of the inner cylinder for sealing and fastening the inner cylinder and the cover assembly, and a pressure relief assembly provided inside the cover assembly for automatically opening and releasing pressure when the water pressure threshold is reached inside the inner cylinder.

[0007] Preferably, the inner buckle assembly includes a support frame, which is fixedly connected inside the sleeve. A stepper motor is fixedly installed on the outside of the support frame, and a worm gear is fixedly connected to the output end of the stepper motor. The worm gear is rotatably connected to the middle of the two sets of support frames through the stepper motor.

[0008] Preferably, the inner buckle assembly further includes a rotating shaft, which is rotatably connected inside the sleeve. A worm gear is fixedly connected to the lower outer side of the rotating shaft, and the worm gear is in contact with and meshes with the worm.

[0009] Preferably, the inner buckle assembly further includes a toothed disc, which is fixedly connected to the upper outer side of the rotating shaft.

[0010] Preferably, the inner buckle assembly further includes a toothed ring, which is rotatably connected to the outside of the inner cylinder. The toothed ring is in contact with the toothed disc and is meshed and rotatably connected. The inner buckle assembly also includes a ramp block, which is fixedly connected to the inside of the toothed ring in a ring shape.

[0011] Preferably, the inner buckle assembly further includes push rods, the number of which is the same as the number of ramps. The push rods are arranged in a ring on the inner wall of the inner cylinder. Limiting rods are fixedly connected in slots on both sides of the push rods. A first spring ring is sleeved on the outer side of the limiting rod. The inner buckle assembly also includes a side plate, which is fixedly connected inside the inner cylinder. The side plate and the limiting rod are slidably connected.

[0012] Preferably, the cover assembly includes a cover cylinder with a through groove in the middle, a first rubber ring fixedly connected to the outside of the cover cylinder, and a slot in an annular shape between the upper and lower first rubber rings on the outside of the cover cylinder, with each slot corresponding to the position of the push rod.

[0013] Preferably, the pressure relief assembly includes an inner bracket, which is fixedly connected to the inner wall of the through groove. A second spring ring is provided at the top of the inner bracket, and the lower end of the second spring ring is fixedly connected to the inner bracket. A pressure relief cover is fixedly connected to the upper end of the second spring ring, and a second rubber ring is fixedly connected to the outer side of the pressure relief cover. The second rubber ring matches the size of the through groove. The pressure relief assembly also includes a magnetic suction piece, which is fixedly connected to the bottom of the pressure relief cover.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. Automated fastening and high-precision sealing

[0016] Improvement: A stepper motor drives a worm gear transmission system, which rotates the gear ring and pushes the push rod into the slot of the cover assembly, achieving one-click automatic fastening.

[0017] Innovation advantages:

[0018] Improved operational efficiency: The motor drive can complete the engagement within seconds without manual intervention;

[0019] Enhanced sealing: The double-layer first rubber ring design (outer side of the cover cylinder) and the push rod slot fit tightly to ensure sealing under high pressure.

[0020] Safety optimization: Operators are kept away from the testing area to reduce the risk of accidental injury.

[0021] 2. Pressure-triggered automatic pressure relief mechanism

[0022] Improvement: The pressure relief assembly employs a dual-action mechanism of a second spring coil and a magnetic clasp. When the water pressure inside the cylinder exceeds the threshold, the pressure pushes the pressure relief cover to overcome the magnetic attraction and spring resistance, automatically opening to release pressure; after the pressure returns to normal, the spring resets and adheres to seal. Attached Figure Description

[0023] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0024] Figure 1 This is a schematic diagram of the overall device of this utility model.

[0025] Figure 2 This is a schematic diagram showing the disassembled inner cylinder and cap assembly of this utility model;

[0026] Figure 3 This is a schematic diagram of the inner buckle component of this utility model;

[0027] Figure 4 This is a schematic diagram of the push rod of this utility model;

[0028] Figure 5 This is a schematic diagram of the pressure relief component of this utility model;

[0029] In the diagram: 1. Sleeve; 11. Inner cylinder; 2. Inner buckle assembly; 21. Stepper motor; 211. Worm gear; 22. Support frame; 23. Rotating shaft; 231. Worm wheel; 232. Gear plate; 24. Gear ring; 241. Slope block; 25. Push rod; 251. Limiting rod; 252. First spring ring; 26. Side plate; 3. Buckle assembly; 31. Cover cylinder; 311. Slot; 312. First rubber ring; 32. Through groove; 4. Pressure relief assembly; 41. Inner bracket; 42. Second spring ring; 43. Pressure relief cover; 431. Magnetic suction piece; 432. Second rubber ring. Detailed Implementation

[0030] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this utility model.

[0031] Please see Figure 1 and Figure 2 and Figure 3 and Figure 4 and Figure 5 This utility model provides a technical solution: a protective explosion-proof device for water pressure testing, including a sleeve 1, an inner cylinder 11 fixedly connected inside the sleeve 1, a cover assembly 3 provided on the upper part of the inner cylinder 11, an inner fastening assembly 2 provided on the inner and outer sides of the inner cylinder 11 for sealing and fastening the inner cylinder 11 and the cover assembly 3, and a pressure relief assembly 4 provided inside the cover assembly 3 for automatically popping open and releasing pressure when the water pressure threshold is reached in the inner cylinder 11;

[0032] This design solves the problems of insufficient safety and poor sealing caused by manually operating hinged components in existing technologies.

[0033] Please see Figure 2 and Figure 3 and Figure 4 The inner buckle assembly 2 includes a support frame 22, which is fixedly connected inside the sleeve 1. A stepper motor 21 is fixedly installed on the outside of the support frame 22. A worm gear 211 is fixedly connected to the output end of the stepper motor 21. The worm gear 211 is rotatably connected to the middle of the two sets of support frames 22 through the stepper motor 21.

[0034] The inner buckle assembly 2 also includes a rotating shaft 23, which is rotatably connected inside the sleeve 1. A worm wheel 231 is fixedly connected to the lower outer side of the rotating shaft 23. The worm wheel 231 is in contact with the worm 211 and is meshed and rotatably connected.

[0035] The inner buckling assembly 2 also includes a gear plate 232, which is fixedly connected to the upper part of the outer side of the rotating shaft 23.

[0036] The inner buckle assembly 2 also includes a toothed ring 24, which is rotatably connected to the outside of the inner cylinder 11. The toothed ring 24 is in contact with the toothed disc 232 and is meshed and rotatably connected. The inner buckle assembly 2 also includes a ramp 241, which is fixedly connected to the inside of the toothed ring 24 in a ring shape.

[0037] The inner buckling assembly 2 also includes a push rod 25, the number of push rods 25 is the same as that of the ramp block 241, the push rod 25 is arranged in a ring on the inner wall of the inner cylinder 11, and the push rod 25 has a limit rod 251 fixedly connected in the slots on both sides of the push rod 25. A first spring ring 252 is sleeved on the outer side of the limit rod 251. The inner buckling assembly 2 also includes a side plate 26, the side plate 26 is fixedly connected inside the inner cylinder 11, and the side plate 26 and the limit rod 251 are slidably connected.

[0038] The cover assembly 3 includes a cover cylinder 31, a through groove 32 is provided through the middle of the cover cylinder 31, a first rubber ring 312 is fixedly connected to the outside of the cover cylinder 31, and a slot 311 is provided in an annular shape on the outside of the cover cylinder 31 between the upper and lower first rubber rings 312, with each slot 311 corresponding to the position of the push rod 25.

[0039] This design enables the rapid sealing and assembly of the cover cylinder 31 at the inner cylinder 11, as well as its disassembly.

[0040] Please see Figure 1 The pressure relief assembly 4 includes an inner bracket 41, which is fixedly connected to the inner wall of the through groove 32. A second spring ring 42 is provided on the top of the inner bracket 41. The lower end of the second spring ring 42 is fixedly connected to the inner bracket 41. A pressure relief cover 43 is fixedly connected to the upper end of the second spring ring 42. A second rubber ring 432 is fixedly connected to the outside of the pressure relief cover 43. The second rubber ring 432 matches the size of the through groove 32. The pressure relief assembly 4 also includes a magnetic suction piece 431, which is fixedly connected to the bottom of the pressure relief cover 43.

[0041] This design enables automatic release when the water pressure inside the inner cylinder 11 reaches a threshold.

[0042] Working principle:

[0043] First, remove the cover tube 31 and align the outer slot 311 of the cover tube 31 with the push rod 25 to achieve pre-positioning;

[0044] Then, the stepper motor 21 is started to drive the worm 211 to rotate, which in turn causes the worm wheel 231 meshing on the side of the worm 211 to rotate synchronously. At this time, the rotating shaft 23 located inside the worm wheel 231 will drive the gear plate 232 to rotate synchronously. At this time, the gear ring 24 located outside the inner cylinder 11 will rotate synchronously under the meshing action of the gear plate 232. During rotation, the ramp 241 inside the gear ring 24 will contact and squeeze the push rod 25. When the push rod 25 is squeezed, it will be pushed into the slot 311. When multiple sets of push rods 25 are pushed inward synchronously to be inserted into the slot 311, the assembly of the cover cylinder 31 at the inner cylinder 11 can be completed. The first rubber ring 312 located outside the cover cylinder 31 can ensure the sealing of the inner cylinder 11 and the cover cylinder 31 after they are connected.

[0045] Similarly, starting the stepper motor 21 drives the worm gear 211 to reverse, which can cause the ramp 241 to disengage from the push rod 25. The push rod 25 will then retract and reset under the elastic action of the first spring coil 252. Once the push rod 25 disengages from the slot 311, the disassembly of the cover cylinder 31 at the top of the inner cylinder 11 can be completed.

[0046] Specifically, this design includes a pressure relief component 4 located in the through groove 32 at the middle of the cover cylinder 31. When the water pressure in the inner cylinder 11 reaches the threshold, the pressure relief cover 43 will be pushed upward by the elastic action of the second spring ring 42. At this time, an opening is formed in the through groove 32 to release pressure. When the water pressure drops to the normal threshold, the second spring ring 42 will drive the pressure relief cover 43 to reset and fasten at the top of the inner bracket 41. The second rubber ring 432 can increase the sealing performance of the pressure relief cover 43 when it is fastened to the cover cylinder 31. The magnetic attraction between the second rubber ring 432 and the top of the cover cylinder 31 can maintain the stability of the pressure relief cover 43 fastened to the top of the cover cylinder 31.

[0047] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A protective explosion-proof device for water pressure testing, comprising a sleeve (1), characterized in that, The sleeve (1) is fixedly connected to an inner cylinder (11). A cover assembly (3) is provided on the upper part of the inner cylinder (11). An inner fastening assembly (2) is provided on the inner and outer sides of the inner cylinder (11) for sealing and fastening the inner cylinder (11) and the cover assembly (3). A pressure relief assembly (4) is also provided inside the cover assembly (3) for automatically opening and releasing pressure when the water pressure threshold in the inner cylinder (11) is reached.

2. The protective explosion-proof device for water pressure testing according to claim 1, characterized in that, The inner buckle assembly (2) includes a support frame (22), which is fixedly connected inside the sleeve (1). A stepper motor (21) is fixedly installed on the outside of the support frame (22). A worm gear (211) is fixedly connected to the output end of the stepper motor (21). The worm gear (211) is rotatably connected to the middle of the two sets of support frames (22) through the stepper motor (21).

3. The protective explosion-proof device for water pressure testing according to claim 2, characterized in that, The inner buckle assembly (2) also includes a rotating shaft (23), which is rotatably connected inside the sleeve (1). A worm wheel (231) is fixedly connected to the lower outer side of the rotating shaft (23). The worm wheel (231) is in contact with the worm (211) and is meshed and rotatably connected.

4. The protective explosion-proof device for water pressure testing according to claim 3, characterized in that, The inner buckle assembly (2) also includes a toothed disc (232), which is fixedly connected to the upper part of the outer side of the rotating shaft (23).

5. The protective explosion-proof device for water pressure testing according to claim 4, characterized in that, The inner buckle assembly (2) also includes a toothed ring (24), which is rotatably connected to the outside of the inner cylinder (11). The toothed ring (24) is in contact with the toothed disc (232) and is meshed and rotatably connected. The inner buckle assembly (2) also includes a ramp (241), which is fixedly connected to the inside of the toothed ring (24) in a ring shape.

6. The protective explosion-proof device for water pressure testing according to claim 5, characterized in that, The inner buckle assembly (2) also includes a push rod (25), the number of which is the same as the number of ramps (241). The push rod (25) is arranged in a ring on the inner wall of the inner cylinder (11). A limit rod (251) is fixedly connected in the slots on both sides of the push rod (25). A first spring ring (252) is sleeved on the outside of the limit rod (251). The inner buckle assembly (2) also includes a side plate (26), which is fixedly connected inside the inner cylinder (11). The side plate (26) and the limit rod (251) are slidably connected.

7. The protective explosion-proof device for water pressure testing according to claim 1, characterized in that, The cover assembly (3) includes a cover cylinder (31), a through groove (32) is provided in the middle of the cover cylinder (31), a first rubber ring (312) is fixedly connected to the outside of the cover cylinder (31), and a slot (311) is provided in an annular shape on the outside of the cover cylinder (31) between the upper and lower first rubber rings (312), and each slot (311) corresponds to the position of the push rod (25).

8. The protective explosion-proof device for water pressure testing according to claim 7, characterized in that, The pressure relief assembly (4) includes an inner bracket (41), which is fixedly connected to the inner wall of the through groove (32). The top of the inner bracket (41) is provided with a second spring ring (42), the lower end of the second spring ring (42) is fixedly connected to the inner bracket (41), and the upper end of the second spring ring (42) is fixedly connected to a pressure relief cover (43). The outer side of the pressure relief cover (43) is fixedly connected to a second rubber ring (432), which matches the size of the through groove (32). The pressure relief assembly (4) also includes a magnetic suction piece (431), which is fixedly connected to the bottom of the pressure relief cover (43).

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