Pressure pipeline pressure detection device

Abstract

The utility model discloses a pressure detection device for a pressure pipeline. The pressure detection device comprises a bottom plate, two fixing frames are oppositely arranged on the two sides of the bottom plate. A pipeline pressure detection mechanism is movably arranged between the two fixing frames; the pipeline pressure detection mechanism comprises sealing covers movably covering the two ends of a to-be-detected pipeline, first transmission mechanisms symmetrically installed on the front side and the rear side of the to-be-detected pipeline, and second transmission mechanisms connected with the first transmission mechanisms. The first transmission mechanisms on the two sides are connected with the sealing covers correspondingly, and the first transmission mechanisms are installed between the two fixing frames through moving rods. The second transmission mechanism is mounted above the to-be-tested pipeline through a connecting rod; an air pump is mounted on the bottom plate; the air pump is connected with the sealing cover on the left side of the to-be-detected pipeline through an air pipe with a one-way valve; the pressure detection device for the pressure pipeline is simple in structure, the connection between the pipeline and the sealing device is simpler and more convenient, and the detection efficiency is improved.

Description

Technical Field

[0001] The utility model specifically relates to a pressure pipeline pressure detection device, belonging to the technical field of pipeline pressure detection. Background Art

[0002] At present, the air pressure transmission pipeline is composed of multiple short pressure pipes, and the two pressure pipe units are connected by welding or other connection methods. Before the pipeline is put into use, it is usually necessary to perform an air pressure test on it to determine whether the product is qualified.

[0003] However, the existing pressure detection devices are not convenient to use, especially the connection between the two ends of the pipeline and the sealing device is relatively cumbersome, which prolongs the time required for detection and reduces the detection efficiency. Therefore, in order to solve the above problems, it is urgent to design a new pressure pipeline pressure detection device. Utility Model Content

[0004] In order to solve the above problems, the utility model proposes a pressure pipeline pressure detection device, which has a simple structure, simplifies the connection between the pipeline and the sealing device, and improves the detection efficiency.

[0005] The pressure pipeline pressure detection device of the utility model comprises a bottom plate; two fixing frames are arranged opposite to each other on both sides of the bottom plate; a pipeline pressure detection mechanism is movably arranged between the two fixing frames;

[0006] The pipeline pressure detection mechanism includes a sealing cover with movable covers arranged at both ends of the pipeline to be tested, a first transmission mechanism symmetrically installed at the front and rear sides of the pipeline to be tested, and a second transmission mechanism connected to the first transmission mechanism; the first transmission mechanisms on both sides are respectively connected to the sealing covers, and the first transmission mechanism is installed between two fixed frames through a moving rod; the second transmission mechanism is installed above the pipeline to be tested through a connecting rod;

[0007] An air pump is installed on the bottom plate; the air pump is connected to the sealing cover on the left side of the pipeline to be tested through an air pipe with a one-way valve; a pressure gauge for detecting the air tightness of the pipeline is also installed on the sealing cover on the right side.

[0008] Furthermore, the first transmission mechanism includes a first motor, a first rotating rod connected to the first motor through a first gear transmission, a first screw connected to the first rotating rod, and a moving block threadedly mounted on both ends of the first screw; the moving block is fixedly connected to the sealing cover.

[0009] Furthermore, the moving blocks are symmetrically arranged at two ends of the first screw rod, and the internal threads arranged inside the moving blocks at the two ends are in opposite directions.

[0010] Furthermore, the first motor is installed on the back side of the moving rod on the right side of the pipeline to be tested through a bracket.

[0011] Furthermore, the first gear is mounted in the center of the first rotating rod, and both sides of the first rotating rod are movably mounted on the back of the moving rod through a first fixing plate; both ends of the first screw rod pass through the moving rod and are connected to the first rotating rod through a first transmission gear.

[0012] Furthermore, the second transmission mechanism includes a second motor, a second rotating rod connected to the second motor via a second gear transmission, and a second screw connected to the second rotating rod; the second screw is vertically installed on the base plate; and the second screw is threadedly connected to the moving rod.

[0013] Furthermore, one end of the second screw rod facing away from the second rotating rod passes through the connecting rod and the moving rod in sequence and extends to the bottom plate; the second screw rod is threadedly installed with the moving rod.

[0014] Furthermore, the second gear is sleeved in the center of the second rotating rod, and the two sides of the second rotating rod are movably mounted above the connecting rod through the second fixing plate; the upper end of the second screw rod passes through the connecting rod and is connected to the second rotating rod through the second transmission gear.

[0015] As a preferred embodiment, a bracket for supporting the pipeline to be tested is also provided on the bottom plate; the bottom of the bracket is fixedly connected to the bottom plate via a connecting block.

[0016] As a preferred embodiment, the inner side of the fixed frame and the back side of the moving rod are respectively provided with mutually matching guide grooves and guide blocks; the guide blocks are slidably installed in the guide grooves. Compared with the prior art, the pressure detection device for pressure pipes of the utility model drives the sealing cover to move by setting a first transmission mechanism, so as to gather or disperse the sealing cover to the center of the pipe to be tested, thereby sealing and loosening the pipe to be tested, which is convenient for testing the pipe; at the same time, a second transmission mechanism is set to drive the first transmission mechanism to move up and down, thereby realizing the up and down movement of the sealing cover, so as to adjust the space and facilitate the placement of the pipe to be tested; the structure is simple, the connection between the pipe and the sealing device is simpler, and the detection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of Example 1 of the present utility model.

[0018] Figure 2 This is a schematic diagram of the bracket structure of Example 1 of the utility model.

[0019] Figure 3 This is a schematic diagram of the sealing cover, air pipe and air pump structure of Example 1 of the utility model.

[0020] Figure 4 This is a schematic diagram of the overall structure of Example 2 of the present utility model.

[0021] The components in the accompanying drawings are marked as: 1. second transmission gear; 2. fixing frame; 3. second motor; 4. sealing cover; 5. bracket; 6. first screw; 7. air pipe; 8. air pump; 9. bottom plate; 10. first rotating rod; 11. first gear; 12. first motor; 13. first fixed plate; 14. moving rod; 15. moving block; 16. second screw; 17. connecting rod; 18. second rotating rod; 19. second fixed plate; 20. connecting block; 21. pipeline to be tested; 22. second gear; 23. first transmission gear; 24. guide groove; 25. pressure gauge; 26. one-way valve. DETAILED DESCRIPTION

[0022] Embodiment 1:

[0023] like Figures 1 to 3 The pressure pipeline pressure detection device shown in the figure comprises a bottom plate 9; two fixing frames 2 are arranged opposite to each other on both sides of the bottom plate 9; and a pipeline pressure detection mechanism is movably arranged between the two fixing frames 2;

[0024] The pipeline pressure detection mechanism includes a sealing cover 4 with movable covers disposed at both ends of the pipeline 21 to be tested, a first transmission mechanism symmetrically installed at the front and rear sides of the pipeline 21 to be tested, and a second transmission mechanism connected to the first transmission mechanism; the first transmission mechanisms on both sides are respectively connected to the sealing cover 4, and the first transmission mechanism is installed between the two fixed frames 2 through a moving rod 14; the second transmission mechanism is installed above the pipeline 21 to be tested through a connecting rod 17;

[0025] An air pump 8 is installed on the bottom plate 9; the air pump 8 is connected to the sealing cover 4 on the left side of the pipeline 21 to be tested through an air pipe 7 with a one-way valve 26; a pressure gauge 25 for detecting the air tightness of the pipeline is also installed on the sealing cover 4 on the right side. During the test, the air pump 8 is first used to inflate the inside of the pipeline 21 to be tested, and the pressure value on the pressure gauge 25 is observed. When the set pressure value is reached, the air pump 8 is turned off; after waiting for a set time, the pressure value on the pressure gauge 25 is observed again, and whether the pipeline 21 to be tested is qualified is judged according to the pressure change.

[0026] In another embodiment, the first transmission mechanism includes a first motor 12, and a first rotating rod 10 that is transmission-connected to the first motor 12 via a first gear 11, and a first screw 6 that is transmission-connected to the first rotating rod 10, and moving blocks 15 that are threadedly mounted on both ends of the first screw 6; the moving blocks 15 are fixedly connected to the sealing cover 4. The moving blocks 15 are symmetrically arranged at both ends of the first screw 6, and the directions of the internal threads arranged inside the moving blocks 15 at both ends are opposite. The first motor 12 is installed on the back side of the moving rod 14 on the right side of the pipeline 21 to be tested through a bracket. The first gear 11 is sleeved on the center of the first rotating rod 10, and both sides of the first rotating rod 10 are movably mounted on the back side of the moving rod 14 through a first fixing plate 13; both ends of the first screw 6 pass through the moving rod 14, and are transmission-connected to the first rotating rod 10 via a first transmission gear 23;

[0027] A first transmission mechanism is provided on both sides of the pipeline 21 to be tested, and the first transmission mechanism is connected to the sealing cover 4, and the sealing cover 4 is driven to move by the first transmission mechanism to realize the opening and closing of the pipeline 21 to be tested. Specifically, two moving blocks 15 are provided at both ends of the first screw 6, and the moving blocks 15 are respectively connected to the sealing covers 4 at both ends of the pipeline 21 to be tested; when in use, the first motor 12 is started, and the first motor 12 rotates the first rotating rod 10 through the first gear 11, and the first rotating rod 10 rotates with the two first screws 6 through the first transmission gear 23, and the first screw 6 rotates to move the moving block 15, and the moving block 15 moves with the sealing cover 4. Since the internal threads of the moving blocks 15 at both ends of the same first screw 6 are in opposite directions, the moving block 15 can drive the sealing covers 4 on both sides of the pipeline 21 to be tested to gather or separate synchronously to the center of the pipeline 21 to be tested, and the sealing cover 4 can be used to seal and loosen the pipeline 21 to be tested, so as to facilitate the detection of the pipeline 21 to be tested.

[0028] In another embodiment, the second transmission mechanism includes a second motor 3, a second rotating rod 18 which is transmission-connected to the second motor 3 via a second gear 22, and a second screw 16 which is transmission-connected to the second rotating rod 18; the second screw 16 is vertically mounted on the bottom plate 9; the second screw 16 is threadedly connected to the moving rod 14. The end of the second screw 16 which is away from the second rotating rod 18 passes through the connecting rod 17 and the moving rod 14 in sequence and extends to the bottom plate; the second screw 16 is threadedly mounted to the moving rod 14. The second gear 22 is sleeved on the center of the second rotating rod 18, and the two sides of the second rotating rod 18 are movably mounted above the connecting rod 17 via a second fixing plate 19; the upper end of the second screw 16 passes through the connecting rod 17, and is transmission-connected to the second rotating rod 18 via a second transmission gear 1;

[0029] When in use, the second motor 3 is started, and the second motor 3 rotates the second rotating rod 18 through the second gear 22. The second rotating rod 18 rotates the two second screws 16 through the second transmission gear 1. The rotation of the second screws 16 causes the moving rod 14 to move up and down, thereby using the moving rod 14 to synchronously move the first screw 6, the moving block 15 and the sealing cover 4 up and down, so that the space can be adjusted to facilitate the placement of the pipeline 21 to be tested.

[0030] Wherein, the first motor 12 and the second motor 3 are both brake motors, so as to control the motor output shafts and thus brake the transmission mechanism.

[0031] In another embodiment, a bracket 5 for supporting the pipeline to be tested is further provided on the bottom plate 9; the bottom of the bracket 5 is fixedly connected to the bottom plate 9 through a connecting block 20 to prevent the pipeline to be tested 21 from rolling.

[0032] Embodiment 2:

[0033] like Figure 4 As shown, in order to ensure that the second transmission mechanism can be more stable when driving the first transmission mechanism to move up and down, a guide groove 24 can be set on the inner side of the fixed frame 2, and a guide block (not shown) can be set on the back of the moving rod 14, and the guide block is clamped in the guide groove 24, and the guide block can slide up and down along the guide groove 24, so that the moving rod 14 can use the guide block to move up and down along the guide groove 24 of the fixed frame 2, and is more stable when moving.

[0034] The pressure detection device for a pressure pipeline of the utility model drives the sealing cover to move by setting a first transmission mechanism, so that the sealing cover gathers or disperses toward the center of the pipeline to be tested, thereby sealing and loosening the pipeline to be tested, which is convenient for testing the pipeline; at the same time, a second transmission mechanism is set to drive the first transmission mechanism to move up and down, thereby realizing the up and down movement of the sealing cover, so as to adjust the space and facilitate the placement of the pipeline to be tested.

[0035] The above embodiments are only preferred implementations of the present utility model, so all equivalent changes or modifications made according to the structures, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A pressure pipe pressure detection device, characterized in that: It comprises a bottom plate; two fixing frames are arranged opposite to each other on both sides of the bottom plate; a pipeline pressure detection mechanism is movably arranged between the two fixing frames; The pipeline pressure detection mechanism includes a sealing cover with movable covers arranged at both ends of the pipeline to be tested, a first transmission mechanism symmetrically installed at the front and rear sides of the pipeline to be tested, and a second transmission mechanism connected to the first transmission mechanism; the first transmission mechanisms on both sides are respectively connected to the sealing covers, and the first transmission mechanism is installed between two fixed frames through a moving rod; the second transmission mechanism is installed above the pipeline to be tested through a connecting rod; An air pump is installed on the bottom plate; the air pump is connected to the sealing cover on the left side of the pipeline to be tested through an air pipe with a one-way valve; a pressure gauge for detecting the air tightness of the pipeline is also installed on the sealing cover on the right side.

2. The pressure pipe pressure detection device according to claim 1, characterized in that: The first transmission mechanism includes a first motor, a first rotating rod connected to the first motor through a first gear, a first screw connected to the first rotating rod, and moving blocks threadedly mounted on both ends of the first screw; the moving block is fixedly connected to the sealing cover.

3. The pressure pipe pressure detection device according to claim 2, characterized in that: The moving blocks are symmetrically arranged at two ends of the first screw rod, and the internal threads arranged inside the moving blocks at the two ends are in opposite directions.

4. The pressure pipe pressure detection device according to claim 2, characterized in that: The first motor is installed on the back of the moving rod on the right side of the pipeline to be tested through a bracket.

5. The pressure pipe pressure detection device according to claim 2, characterized in that: The first gear is sleeved in the center of the first rotating rod, and the two sides of the first rotating rod are movably mounted on the back of the moving rod through the first fixing plate; the two ends of the first screw rod pass through the moving rod and are connected to the first rotating rod through the first transmission gear.

6. The pressure pipe pressure detection device according to claim 1, characterized in that: The second transmission mechanism includes a second motor, a second rotating rod connected to the second motor through a second gear transmission, and a second screw connected to the second rotating rod; the second screw is vertically installed on the base plate; the second screw is threadedly connected to the moving rod.

7. The pressure pipe pressure detection device according to claim 6, characterized in that: The end of the second screw rod facing away from the second rotating rod passes through the connecting rod and the moving rod in sequence and extends to the bottom plate; the second screw rod is threadedly installed with the moving rod.

8. The pressure pipe pressure detection device according to claim 6, characterized in that: The second gear is sleeved in the center of the second rotating rod, and the two sides of the second rotating rod are movably installed above the connecting rod through the second fixing plate; the upper end of the second screw rod passes through the connecting rod and is connected to the second rotating rod through the second transmission gear.

9. The pressure pipe pressure detection device according to claim 1, characterized in that: The bottom plate is also provided with a bracket for supporting the pipeline to be tested; the bottom of the bracket is fixedly connected to the bottom plate through a connecting block.

10. The pressure pipe pressure detection device according to claim 1, characterized in that: The inner side of the fixing frame and the back side of the moving rod are respectively provided with a guide groove and a guide block which match each other; the guide block is slidably installed in the guide groove.

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