Pipe fitting pressure detection device

Abstract

The utility model provides a pipe fitting pressure detection device, which belongs to the technical field of pipe fitting detection and comprises a workbench, a slide rail, a first mounting frame, a first straight plate frame, an air inlet pipe, a clamping mechanism and a dynamic sealing mechanism. The first mounting frame is slidably connected to the upper side of the sliding rail, and a positioning cylinder is fixedly connected to the center of the first mounting frame and used for placing a to-be-detected pipe fitting; the first straight plate frame is fixedly connected to the top of the workbench, and the side, close to the first mounting frame, of the first straight plate frame is fixedly connected with a first sealing plate. The air inlet pipe is fixedly connected to the center of the first sealing plate; the detection mode is simple and easy to operate, a traditional complex fixing mechanism is simplified, mounting and dismounting are rapid, the detection efficiency is effectively improved, and compared with existing water inlet detection, water resource waste is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipe fitting detection, and in particular relates to a pipe fitting pressure detection device. Background Art

[0002] Pipe fittings are indispensable components in pipeline systems. They play an important role in various engineering fields, such as municipal engineering, petrochemical engineering, shipbuilding and nuclear power.

[0003] The Chinese patent with application number CN202320305573.X in the prior art discloses a pressure detection device for plumbing pipe fittings, which specifically relates to the field of plumbing pipe fitting detection technology, including a support plate, a pipe body is arranged on the top of the support plate, a pressure gauge is arranged on the top of the pipe body, a clamping structure is arranged on the outside of the pipe body, and the clamping structure includes two support blocks, both of which are arranged on the surface of the support plate, a limiting ring is arranged on the top of the support block, a support pad is arranged at the bottom of the inner cavity of the limiting ring, and a plurality of clamping rings are arranged in an annular shape inside the limiting ring, and a threaded rod is arranged at one end of the clamping ring. The utility model can facilitate the staff to clamp and limit the pipeline to be detected, avoid shaking of the pipeline during detection, and affect the accuracy of detection, and at the same time improve the sealing of the pipeline during the test process, avoid gas leakage during detection, thereby affecting the accuracy of detection, and facilitate the staff to operate.

[0004] The existing pipe sealing detection equipment is not easy to operate. After clamping, it needs to be manually placed in the water tank. The detection water lacks filtration, which may cause impurities to damage the inner wall of the pipe. Moreover, the detection water used is usually one-time use, resulting in a waste of water resources. For this reason, we propose a pipe pressure detection device. Utility Model Content

[0005] The utility model aims to provide a pipe pressure detection device, aiming to solve the problems raised in the background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] Pipe fitting pressure detection device, comprising:

[0008] Workbench;

[0009] A slide rail fixedly connected to the top of the workbench;

[0010] A first mounting frame is slidably connected to the upper side of the slide rail, and a positioning cylinder is fixedly connected at the center thereof, and the positioning cylinder is used to place the pipe to be inspected;

[0011] A first straight plate frame is fixedly connected to the top of the workbench, and a first sealing plate is fixedly connected to one side of the straight plate frame close to the first mounting frame;

[0012] An air inlet pipe fixedly connected to the center of the first sealing plate;

[0013] A clamping mechanism, which is disposed on the first mounting frame and is used to fix and clamp the pipe; and

[0014] The dynamic sealing mechanism is used to push the first mounting frame to move so that the pipe to be tested is in a sealed state, and then control the gas to enter the pipe from the air inlet pipe to perform pressure testing.

[0015] As a preferred solution of the utility model, the clamping mechanism includes:

[0016] A servo motor, which is fixedly connected to the lower inner wall of the first mounting frame, and a worm is fixedly connected to the output end of the servo motor;

[0017] A mounting shaft, which is rotatably connected between the inner walls of the first mounting frame, and whose two ends pass through two sides of the first mounting frame;

[0018] A worm wheel, which is fixedly connected to the circumferential surface of the mounting shaft and meshes with the worm;

[0019] The pinion gear is provided with two pinions which are respectively fixedly connected to the two ends of the mounting shaft;

[0020] Two large gears are provided and are rotatably connected to two sides of the first mounting frame respectively; and

[0021] The reducing assembly is provided with two groups, which are respectively arranged on the large gear and fix the pipe fitting by reducing the clamping diameter.

[0022] As a preferred solution of the utility model, each group of the reducing components includes a plurality of eccentric rods and positioning blocks, the eccentric rods and the positioning blocks correspond to each other one by one, one end of the eccentric rod is rotatably connected to the side of the first mounting frame, the positioning block is fixedly connected to the other end of the eccentric rod, a sliding groove is provided on the side of the eccentric rod, and a plurality of sliding blocks are fixedly connected to the side of the large gear, and the sliding blocks are slidably connected in the corresponding sliding grooves.

[0023] As a preferred solution of the present invention, the slide groove is made of aluminum alloy.

[0024] As a preferred solution of the utility model, the dynamic sealing mechanism includes a second mounting frame, a second straight plate clamp and a second sealing plate, the second mounting frame is slidably connected to the upper side of the slide rail, the second straight plate clamp is fixedly connected to the top of the second mounting frame, and the second sealing plate is fixedly connected to the side of the second straight plate clamp close to the positioning cylinder.

[0025] As a preferred solution of the utility model, an electric push rod is fixedly connected to the top of the workbench, and the extended end of the electric push rod is fixedly connected to the second mounting frame.

[0026] As a preferred solution of the present invention, the second sealing plate and the first sealing plate are both made of rubber.

[0027] Compared with the prior art, the beneficial effects of the utility model are:

[0028] 1. This solution controls the extended end of the electric push rod to push the second mounting bracket to move, and the second straight plate clamp and the second sealing plate follow the second mounting bracket to move in the direction of the first mounting bracket, so that the pipe fitting is clamped between the second sealing plate and the first sealing plate. At this time, both ends of the pipe fitting are sealed by the second sealing plate and the first sealing plate, and gas is introduced into the air intake pipe. The gas enters the interior of the pipe fitting through the air intake pipe to perform pressure detection. The detection method is simple and easy to operate, which simplifies the traditional complex fixing mechanism, can be quickly installed and disassembled, and effectively improves the detection efficiency. Moreover, compared with the existing water-introduction detection, it will not cause waste of water resources.

[0029] 2. In this solution, several eccentric rods are evenly distributed, and several positioning blocks move synchronously with them. As the positioning blocks approach synchronously, the pipe fittings are clamped between the positioning blocks. Similarly, during disassembly, the output end of the servo motor rotates in the opposite direction, and the positioning blocks move away synchronously, so that the pipe fittings can be pulled out. The fixing range of the positioning blocks is adjustable, and pipe fittings of different diameters can be fixed, which has a wider range of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation to the present invention.

[0031] In the attached picture:

[0032] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0033] Figure 2 It is a side view of the utility model;

[0034] Figure 3 This is a structural diagram of the fixing frame of the utility model;

[0035] Figure 4 This is a structural diagram of the air intake pipe of the utility model.

[0036] In the figure: 1. workbench; 2. slide rail; 3. first mounting frame; 4. positioning cylinder; 5. large gear; 6. slider; 7. eccentric rod; 8. positioning block; 9. slide groove; 10. mounting shaft; 11. small gear; 12. worm gear; 13. servo motor; 14. worm; 15. first straight plate frame; 16. first sealing plate; 17. air intake pipe; 18. electric push rod; 19. second mounting frame; 20. second straight plate clamp; 21. second sealing plate. DETAILED DESCRIPTION

[0037] 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.

[0038] Example

[0039] See also Figure 1-Figure 4 , the technical solution provided by this embodiment is as follows:

[0040] The pipe pressure detection device comprises a workbench 1, a slide rail 2, a first mounting frame 3, a first straight plate frame 15, an air inlet pipe 17, a clamping mechanism and a dynamic sealing mechanism, wherein: the slide rail 2 is fixedly connected to the top of the workbench 1; the first mounting frame 3 is slidably connected to the upper side of the slide rail 2, and a positioning cylinder 4 is fixedly connected at the center thereof, and the positioning cylinder 4 is used to place the pipe to be detected; the first straight plate frame 15 is fixedly connected to the top of the workbench 1, and a first sealing plate 16 is fixedly connected to the side thereof close to the first mounting frame 3; the air inlet pipe 17 is fixedly connected to the center of the first sealing plate 16; the clamping mechanism is arranged on the first mounting frame 3, and is used to fix and clamp the pipe; the dynamic sealing mechanism is used to push the first mounting frame 3 to move, so that the pipe to be detected is in a sealed state, and then the gas is controlled to enter the pipe from the air inlet pipe 17 for pressure detection.

[0041] In a specific embodiment of the present invention, the positioning cylinder 4 is used to place the pipe to be tested, and the two ends of the positioning cylinder 4 pass through the two sides of the first mounting frame 3; the slide rail 2 is used to support the first mounting frame 3 and the second mounting frame 19 to move linearly, and the first mounting frame 3 is located between the first straight plate frame 15 and the second straight plate clamp 20. The positions of the first sealing plate 16 and the second sealing plate 21 correspond to the two ends of the pipe. The air intake pipe 17 is connected to the external air pump equipment, which is not shown in the figure. When in use, the pipe is placed in the positioning cylinder 4, and the two ends of the pipe pass through the two ends of the positioning cylinder 4. At this time, the output end of the servo motor 13 is controlled to drive the worm 14 to rotate, and finally drive the two large gears 5 to rotate synchronously. Under the limiting action of the slider 6, a number of eccentric rods 7 are synchronously offset, so that the pipe is clamped between a number of positioning blocks 8, and then the extended end of the electric push rod 18 is controlled to push the second mounting frame 19 to move, and the second straight plate clamp 20 and the second sealing plate 21 follow the second mounting frame 19 to the first The mounting frame 3 moves in the direction of the second sealing plate 21 and the first sealing plate 16, and the two ends of the pipe are sealed by the second sealing plate 21 and the first sealing plate 16. Gas is introduced into the air inlet pipe 17, and the gas enters the interior of the pipe from the air inlet pipe 17 to perform pressure detection. The detection method is simple and easy to operate, which simplifies the traditional complex fixing mechanism, and can be quickly installed and disassembled, effectively improving the detection efficiency. Moreover, compared with the existing water-introduced detection, it will not cause waste of water resources. It should be noted that the above gas pressure measurement is all existing technology, and the test pressure of metal pipes should be 1.15 times the design pressure. This standard is to ensure that the pipeline has sufficient strength and safety under normal working pressure, and additional pressure relief equipment needs to be installed. The test medium should be air or other non-flammable, non-toxic, and non-corrosive gases. During the test, a restricted area should be designated to prevent unauthorized personnel from entering to ensure safety.

[0042] Specifically, the clamping mechanism includes:

[0043] A servo motor 13, which is fixedly connected to the lower inner wall of the first mounting frame 3, and a worm 14 is fixedly connected to the output end thereof;

[0044] The mounting shaft 10 is rotatably connected between the inner walls of the first mounting frame 3, and its two ends pass through the two sides of the first mounting frame 3;

[0045] A worm wheel 12, which is fixedly connected to the circumferential surface of the mounting shaft 10 and meshes with the worm 14;

[0046] The pinion gear 11 is provided with two pinions which are respectively fixedly connected to the two ends of the mounting shaft 10;

[0047] Two large gears 5 are provided, which are rotatably connected to two sides of the first mounting frame 3 and mesh with the small gears 11 on the same side respectively; and

[0048] There are two groups of reducing components, which are respectively arranged on the large gear 5. They fix the pipe fittings by reducing the clamping diameter. Each group of reducing components includes a plurality of eccentric rods 7 and positioning blocks 8. The eccentric rods 7 and the positioning blocks 8 correspond to each other one by one. One end of the eccentric rod 7 is rotatably connected to the side of the first mounting frame 3, and the positioning block 8 is fixedly connected to the other end of the eccentric rod 7. A slide groove 9 is opened on the side of the eccentric rod 7. A plurality of sliders 6 are fixedly connected to the side of the large gear 5, and the sliders 6 are slidably connected to the corresponding slide grooves 9.

[0049] In a specific embodiment of the utility model, the installation shaft 10 is located at the lower side of the positioning cylinder 4, and the servo motor 13 is used to control the rotation of the worm 14, and then drive the worm wheel 12 to rotate at a reduced speed. The installation shaft 10 is connected to two small gears 11, and under the action of meshing, it drives the two large gears 5 to rotate synchronously. Several eccentric rods 7 are evenly distributed, and the slider 6 rotates slightly following the large gear 5. Under the limiting action of the slide groove 9, the eccentric rod 7 is deflected to achieve the synchronous movement of several positioning blocks 8. As the several positioning blocks 8 approach synchronously, the pipe fittings are clamped between the several positioning blocks 8. Similarly, during disassembly, the output end of the servo motor 13 rotates in the opposite direction, and the several positioning blocks 8 move away synchronously, so that the pipe fittings can be pulled out. The fixing range of the positioning blocks 8 is adjustable, and pipe fittings of different diameters can be fixed, and the range of use is wider.

[0050] Specifically, the slide groove 9 is made of aluminum alloy.

[0051] In a specific embodiment of the present utility model, the positioning block 8 and the slide groove 9 are both made of aluminum alloy, which is high in strength and light in weight, and can meet the requirements of pipeline fixing and ensure that the clamped metal pipeline will not loosen.

[0052] Specifically, the dynamic sealing mechanism includes a second mounting frame 19, a second straight plate clamp 20 and a second sealing plate 21. The second mounting frame 19 is slidably connected to the upper side of the slide rail 2, the second straight plate clamp 20 is fixedly connected to the top of the second mounting frame 19, and the second sealing plate 21 is fixedly connected to the side of the second straight plate clamp 20 close to the positioning cylinder 4. The top of the workbench 1 is fixedly connected to an electric push rod 18, and the extended end of the electric push rod 18 is fixedly connected to the second mounting frame 19.

[0053] In a specific embodiment of the utility model, the second straight plate clamp 20 is fixed to the second mounting frame 19 by bolts. When in use, the second mounting frame 19 is pushed to move by the extended end of the electric push rod 18. The second straight plate clamp 20 moves with the second mounting frame 19, so that the second sealing plate 21 approaches the direction of the first mounting frame 3, thereby sealing one end of the pipe fitting. The second sealing plate 21 and the first sealing plate 16 are both made of rubber, which can be natural rubber or synthetic rubber, have excellent sealing performance, and are suitable for pipeline connections under different media and temperature conditions.

[0054] Working principle: When in use, place the pipe fitting in the positioning tube 4, and the two ends of the pipe fitting pass through the two ends of the positioning tube 4. At this time, the output end of the servo motor 13 is controlled to drive the worm 14 to rotate, and finally drive the two large gears 5 to rotate synchronously. Under the limiting action of the slider 6, several eccentric rods 7 are synchronously offset, so that the pipe fitting is clamped between several positioning blocks 8, and then the extended end of the electric push rod 18 is controlled to push the second mounting frame 19 to move, and the second straight plate clamp 20 and the second sealing plate 21 follow the second mounting frame 19 to move in the direction of the first mounting frame 3, so that the pipe fitting is clamped between the second sealing plate 21 and the first sealing plate 16. At this time, the two ends of the pipe fitting are sealed by the second sealing plate 21 and the first sealing plate 16, and gas is introduced into the air intake pipe 17. The gas enters the interior of the pipe fitting from the air intake pipe 17 to perform pressure detection. The detection method is simple and easy to operate, which simplifies the traditional complex fixing mechanism, and can be quickly installed and disassembled, effectively improving the detection efficiency.

[0055] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. A pipe pressure detection device, characterized in that: include: Workbench (1); A slide rail (2) fixedly connected to the top of the workbench (1); A first mounting frame (3) is slidably connected to the upper side of the slide rail (2), and a positioning cylinder (4) is fixedly connected at the center thereof, wherein the positioning cylinder (4) is used to place the pipe to be inspected; A first straight plate frame (15) is fixedly connected to the top of the workbench (1), and a first sealing plate (16) is fixedly connected to a side of the straight plate frame close to the first mounting frame (3); An air inlet pipe (17) fixedly connected to the center of the first sealing plate (16); A clamping mechanism, which is arranged on the first mounting frame (3) and is used to fix and clamp the pipe; and The dynamic sealing mechanism is used to push the first mounting frame (3) to move so that the pipe to be tested is in a sealed state, and then control the gas to enter the pipe from the air inlet pipe (17) to perform pressure testing.

2. The pipe pressure detection device according to claim 1, characterized in that: The clamping mechanism comprises: A servo motor (13) fixedly connected to the lower inner wall of the first mounting frame (3), with a worm (14) fixedly connected to the output end thereof; A mounting shaft (10) which is rotatably connected between the inner walls of the first mounting frame (3), with two ends of the shaft passing through two sides of the first mounting frame (3); A worm wheel (12) fixedly connected to the circumferential surface of the mounting shaft (10) and meshing with the worm (14); A pinion gear (11) is provided with two pinions respectively fixedly connected to both ends of the mounting shaft (10); Two large gears (5) are provided, which are rotatably connected to two sides of the first mounting frame (3) and mesh with the small gears (11) on the same side; and The diameter reducing components are provided in two groups, which are respectively arranged on the large gear (5) and fix the pipe fitting by reducing the clamping diameter.

3. The pipe pressure detection device according to claim 2, characterized in that: Each group of the reducing components comprises a plurality of eccentric rods (7) and positioning blocks (8), the eccentric rods (7) and the positioning blocks (8) corresponding to each other one by one, one end of the eccentric rod (7) is rotatably connected to the side of the first mounting frame (3), the positioning block (8) is fixedly connected to the other end of the eccentric rod (7), a sliding groove (9) is provided on the side of the eccentric rod (7), and a plurality of sliding blocks (6) are fixedly connected to the side of the large gear (5), and the sliding blocks (6) are slidably connected in the corresponding sliding grooves (9).

4. The pipe pressure detection device according to claim 3, characterized in that: The slide groove (9) is made of aluminum alloy.

5. The pipe pressure detection device according to claim 4, characterized in that: The dynamic sealing mechanism comprises a second mounting frame (19), a second straight plate clamp (20) and a second sealing plate (21); the second mounting frame (19) is slidably connected to the upper side of the slide rail (2); the second straight plate clamp (20) is fixedly connected to the top of the second mounting frame (19); and the second sealing plate (21) is fixedly connected to a side of the second straight plate clamp (20) close to the positioning cylinder (4).

6. The pipe pressure detection device according to claim 5, characterized in that: An electric push rod (18) is fixedly connected to the top of the workbench (1), and an extended end of the electric push rod (18) is fixedly connected to a second mounting frame (19).

7. The pipe pressure detection device according to claim 6, characterized in that: The second sealing plate (21) and the first sealing plate (16) are both made of rubber.

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