A vacuum pressure instrument

Abstract

The present invention discloses a vacuum pressure instrument in the technical field of pressure detection equipment, comprising a base plate, a bracket fixedly connected to the top of the base plate, a fixed gear fixedly connected to the front end of the bracket, a connecting plate rotatably connected to the front end of the fixed gear, both ends of the connecting plate are respectively fixedly connected to the fixing plates, and the rear end of the fixing plate is rotatably connected to a connecting gear for meshing with the fixed gear. The present invention adopts an adjusting clamping assembly. When performing fixed detection on different sealing tubes, it is only necessary to dock one end of the sealing tube with the adjusting clamping assembly, and then the sealing tube can be sealed and fixed to one end of the fixing plate by rotating the connecting plate. A sufficient amount of gas can be directly introduced into the sealing tube to detect the pressure through a pressure gauge. After the detection is completed, it is only necessary to rotate the connecting plate to disconnect the fixing effect of the sealing tube and the fixing plate, and there is no need to waste a lot of time on fixing the sealing tube on the fixing plate when frequently replacing the sealing tube.

Description

Technical Field

[0001] The invention relates to the technical field of pressure detection equipment, in particular to a vacuum pressure instrument. Background Art

[0002] The vacuum pressure gauge uses atmospheric pressure as the reference and is used to measure instruments with pressures less than atmospheric pressure. The vacuum pressure gauge is suitable for measuring the vacuum pressure of liquids and gases that are non-explosive, non-crystallizable, non-solidifiable, and non-corrosive to copper and copper alloys. It is widely used in gas transportation, pipeline liquids and closed containers to measure the pressure of various liquids, gases, steam and other media that are non-corrosive, non-explosive, non-crystallizable, and non-solidifiable.

[0003] The prior art discloses some invention patents in the field of instrument technology, among which the invention patent with application number CN114636511A discloses a vacuum pressure instrument, including a carrier mechanism, a negative pressure fixing mechanism, a vacuum pressure display mechanism and a dust cleaning mechanism, wherein the carrier mechanism is fixedly connected with the negative pressure fixing mechanism, the vacuum pressure display mechanism is arranged in the negative pressure fixing mechanism, the dust cleaning mechanism is arranged below the vacuum pressure display mechanism, and the dust cleaning mechanism is also arranged in the negative pressure fixing mechanism, the high-pressure nozzle in the dust cleaning mechanism is fixedly connected to one end of the slide rail in the carrier mechanism, the carrier mechanism can transport the fire hose to be tested, so that the connector and the rubber ring are aligned for easy connection, the negative pressure mechanism can be externally connected to the suction machine to form a negative pressure effect on the fire hose, and the suction caused can connect the fire hose and the negative pressure pipe, the vacuum pressure display mechanism can adjust the height of the black liquid oil in the gap through the action of the vacuum pressure, and the dust cleaning mechanism can spray out the dust in the slide chute; The above scheme can judge the pressure change inside the water pipe by the change of the liquid oil height inside the first piston tube, and can clean the dust by the cleaning mechanism. However, as a pressure detection equipment, the pressure gauge needs to frequently replace different water pipes for detection, and in order to ensure the sealing connection between the water pipe and the pressure gauge during detection, the pressure gauge needs to be tightly connected to the water pipe before detection. While ensuring the tight connection, the water pipe cannot be quickly replaced. In this way, a lot of time in the detection process is used to tightly connect the water pipe and the pressure gauge, which greatly affects the efficiency of detection. Summary of the invention

[0004] The object of the present invention is to provide a vacuum pressure instrument to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a vacuum pressure instrument, comprising a base plate, a bracket fixedly connected to the top of the base plate, a fixed gear fixedly connected to the front end of the bracket, a connecting plate rotatably connected to the front end of the fixed gear, fixed plates fixedly connected to both ends of the connecting plate, a connecting gear for meshing with the fixed gear rotatably connected to the rear end of the fixed plate, a pressure gauge is provided at the rear end of the fixed plate, an adjusting clamping assembly is provided on the fixed plate, the adjusting clamping assembly is used for sealing and docking with the equipment to be tested, and performing pressure detection through the pressure gauge.

[0006] As a further scheme of the present invention, the adjusting clamping assembly includes a threaded rod, the threaded rod is arranged inside the fixing plate, the threaded rod is spirally connected with a gear ring, the gear ring is meshed with the connecting gear inside, one end of the gear ring is fixedly connected with a connecting sleeve, the connecting sleeve is rotatably sleeved inside the fixing plate, a sliding ring is slidably sleeved on the threaded rod, one end of the sliding ring is fixedly connected with a reset spring for its reset, one end of the reset spring is fixedly connected to the connecting sleeve, one end of the threaded rod is fixedly connected with a push plate, one end of the push plate is rotatably connected to a second rotating block, one end of the second rotating block is rotatably connected to the first rotating block, one end of the first rotating block is rotatably connected to the sliding ring, a limiting opening is provided on one side of the threaded rod, one end of the fixing plate is fixedly connected to a limiting frame, one end of the limiting frame is slidably sleeved inside the limiting opening, and the pressure gauge is fixed on the limiting frame.

[0007] As a further solution of the present invention, a fixed motor is fixedly connected to the top of the bracket, and the output shaft of the fixed motor passes through the fixed gear and is fixedly connected to the connecting plate.

[0008] As a further solution of the present invention, a push block is fixedly connected to the push plate, and the push block is used to push the second rotating block to deflect it.

[0009] As a further solution of the present invention, the outer diameters of the circumferences of the connecting sleeve and the sliding ring are the same as the diameter of the push plate.

[0010] As a further solution of the present invention, a connecting hole is opened inside the limit frame, the input end of the pressure gauge is connected to the connecting hole, and one end of the connecting hole passes through the fixing plate and is arranged at the front end of the fixing plate.

[0011] As a further solution of the present invention, an anti-skid pad with a large friction coefficient is fixedly connected to the bottom of the base plate.

[0012] As a further solution of the present invention, the front end outer wall of the fixing plate is a smooth outer wall, and a sealing gasket is embedded in the front end of the fixing plate.

[0013] Compared with the prior art, the present invention has the following beneficial effects: The present invention adopts an adjusting clamping assembly. When performing fixed detection on different sealing tubes, it only needs to dock one end of the sealing tube with the adjusting clamping assembly, and then the sealing tube can be sealed and fixed to one end of the fixing plate by rotating the connecting plate. A sufficient amount of gas can be directly introduced into the sealing tube to detect the pressure through a pressure gauge. After the detection is completed, it only needs to rotate the connecting plate to disconnect the fixing effect of the sealing tube and the fixing plate. In this way, there is no need to frequently replace the sealing tube and waste a lot of time on fixing the sealing tube on the fixing plate, thereby greatly improving the detection efficiency of the sealing tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 It is a schematic diagram of the rear structure of the present invention; Figure 3 for Figure 2 The enlarged structural diagram at A in the middle; Figure 4 Schematic diagram of the structure of the adjustable clamping assembly.

[0015] In the accompanying drawings, the components represented by the reference numerals are listed as follows: 1. Bottom plate; 2. Bracket; 3. Fixed gear; 4. Connecting plate; 5. Sealing tube; 6. Pressure gauge; 7. Fixed motor; 8. Push plate; 9. Fixed plate; 10. Connecting gear; 11. Limiting frame; 12. Limiting opening; 13. Threaded rod; 14. Gear ring; 15. Reset spring; 16. Sliding ring; 17. Connecting sleeve; 18. First rotating block; 19. Second rotating block; 20. Top block. DETAILED DESCRIPTION

[0016] See also Figure 1-Figure 4 The present invention provides a technical solution: a vacuum pressure instrument, comprising a bottom plate 1, a bracket 2 is fixedly connected to the top of the bottom plate 1, a fixed gear 3 is fixedly connected to the front end of the bracket 2, a connecting plate 4 is rotatably connected to the front end of the fixed gear 3, both ends of the connecting plate 4 are respectively fixedly connected to a fixed plate 9, a connecting gear 10 for meshing with the fixed gear 3 is rotatably connected to the rear end of the fixed plate 9, a pressure gauge 6 is arranged at the rear end of the fixed plate 9, an adjusting clamping assembly is arranged on the fixed plate 9, and the adjusting clamping assembly is used for sealing and docking with the device to be detected, and pressure detection is performed through the pressure gauge 6; When the above scheme is put into practical use, Figure 1As shown, the sealing tube 5 to be tested is docked with the adjusting clamping assembly on the fixing plate 9, and then the connecting plate 4 is rotated, and the connecting gear 10 is driven to rotate on the fixing gear 3 through the connecting plate 4, so that the connecting gear 10 drives the adjusting clamping assembly to rotate, thereby fixing the sealing tube 5 on the fixing plate 9, and then a gas with sufficient pressure is passed from the other end of the sealing tube 5 into the inside of the sealing tube 5, and the indication is observed through the pressure gauge 6. When the indication reaches the required standard of the sealing tube 5, the testing of the sealing tube 5 is completed. After the testing is completed, the connecting plate 4 is rotated in the opposite direction, so that the connecting gear 10 rotates in the opposite direction on the fixing gear 3, and the clamping fixation of the sealing tube 5 is loosened by the adjusting clamping assembly. The sealing tube 5 can be removed from the fixing plate 9 and replaced with another sealing tube 5 for testing. The purpose of this is that when fixing and testing different sealing tubes 5, it is only necessary to dock one end of the sealing tube 5 with the adjusting clamping assembly, and then the sealing tube 5 can be sealed and fixed to one end of the fixing plate 9 by rotating the connecting plate 4. A sufficient amount of gas can be directly introduced into the sealing tube 5 to detect the pressure through the pressure gauge 6. After the test is completed, it is only necessary to rotate the connecting plate 4 to disconnect the fixing effect of the sealing tube 5 and the fixing plate 9. In this way, there is no need to frequently replace the sealing tube 5, and a lot of time is wasted on fixing the sealing tube 5 on the fixing plate 9, thereby greatly improving the detection efficiency of the sealing tube 5.

[0017] As a further solution of the present invention, the adjusting clamping assembly includes a threaded rod 13, the threaded rod 13 is arranged inside the fixed plate 9, a toothed ring 14 is spirally connected to the threaded rod 13, the toothed ring 14 is meshed with the inside of the connecting gear 10, one end of the toothed ring 14 is fixedly connected to a connecting sleeve 17, the connecting sleeve 17 is rotatably sleeved inside the fixed plate 9, a sliding ring 16 is slidably sleeved on the threaded rod 13, one end of the sliding ring 16 is fixedly connected to a reset spring 15 for its reset, the reset spring 15 is fixedly connected to the reset spring 15 for its reset, and the reset spring 15 is fixedly connected to the reset spring 15 for its reset. 5 is fixedly connected to the connecting sleeve 17, one end of the threaded rod 13 is fixedly connected to the push plate 8, one end of the push plate 8 is rotatably connected to the second rotating block 19, one end of the second rotating block 19 is rotatably connected to the first rotating block 18, one end of the first rotating block 18 is rotatably connected to the sliding ring 16, one side of the threaded rod 13 is provided with a limiting opening 12, one end of the fixed plate 9 is fixedly connected to the limiting frame 11, one end of the limiting frame 11 is slidably sleeved inside the limiting opening 12, and the pressure gauge 6 is fixed on the limiting frame 11; When the above scheme is put into practical use, after the sealing tube 5 is butted against the connecting sleeve 17 at one end and fitted with the fixing plate 9, the connecting plate 4 is rotated so that the connecting gear 10 rotates together with the fixing plate 9, and the connecting gear 10 meshes with the fixed gear 3 so that it rotates during the rotation process, and the connecting gear 10 self-rotates and drives the gear ring 14 meshed with it to rotate together. Due to the limiting effect of the limit frame 11 on the threaded rod 13, the threaded rod 13 does not rotate together with the gear ring 14, but the gear ring 14 drives the threaded rod 13 to slide along the limit frame 11 when it rotates, and the threaded rod 13 drives the push plate 8 at one end to slide. Due to the elastic effect of the reset spring 15 on the sliding ring 16, the connection between the first rotating block 18 and the second rotating block 19 is first deflected, so that the distance from the push plate 8 to the sliding ring 16 is compressed, and at the same time, the first rotating block 18 and the second rotating block 19 are deflected. The first rotating block 18 and the second rotating block 19 are flipped outward. When the first rotating block 18 and the second rotating block 19 cannot continue to flip, the push plate 8 pushes the sliding ring 16 to compress the reset spring 15 and slide along the threaded rod 13. The threaded rod 13 gradually slides so that the first rotating block 18 will contact the outer wall of the sealing tube 5, and as the threaded rod 13 slides, the first rotating block 18 gradually presses the sealing tube 5 to fix the sealing tube 5 on the fixed plate 9, thereby fixing the sealing tube 5. After fixing, gas is introduced into the sealing tube 5, which can be detected through the pressure gauge 6 at one end. After the detection is completed, the gas is released, and the connecting plate 4 is rotated in the opposite direction. Through a series of reverse transmissions, the first rotating block 18 and the second rotating block 19 can be reset and separated from the fixing effect on the sealing tube 5, and the sealing tube 5 can be removed from the connecting sleeve 17.

[0018] As a further solution of the present invention, a fixed motor 7 is fixedly connected to the top of the bracket 2, and the output shaft of the fixed motor 7 passes through the fixed gear 3 and is fixedly connected to the connecting plate 4; When the above scheme is put into practical use, when driving the connecting plate 4 to rotate, the fixed motor 7 is started to drive the connecting plate 4 to rotate, so as to realize the control of the uniform rotation of the connecting plate 4 and change the rotation direction of the connecting plate 4 at any time.

[0019] As a further solution of the present invention, a top block 20 is fixedly connected to the push plate 8, and the top block 20 is used to push the second rotating block 19 to deflect it; When the above scheme is put into actual use, the function of the top block 20 is to still be able to contact one end of the second rotating block 19 through the top block 20 when the distance between the sliding ring 16 and the push plate 8 is the farthest, so that the second rotating block 19 remains in a position inclined outward. The purpose of this is that when the distance between the sliding ring 16 and the push plate 8 is reduced, the first rotating block 18 and the second rotating block 19 can naturally flip outward instead of inward, and the top block 20 limits the rotation direction of the second rotating block 19.

[0020] As a further solution of the present invention, the outer diameters of the circumferences of the connecting sleeve 17 and the sliding ring 16 are the same as the diameter of the push plate 8; When the above scheme is put into actual use, the sealing tube 5 is always kept in a state where the sliding ring 16 and the push plate 8 do not cause any obstruction when the sealing tube 5 is sleeved on the connecting sleeve 17. In addition, when the push plate 8 is pushed to drive the sliding ring 16 to slide, the sealing tube 5 can also be well restricted by the first rotating block 18.

[0021] As a further solution of the present invention, a connecting hole is provided inside the limiting frame 11, and the input end of the pressure gauge 6 is connected to the connecting hole. One end of the connecting hole passes through the fixing plate 9 and is arranged at the front end of the fixing plate 9. When the above scheme is put into actual use, the pressure gauge 6 is directly connected to the inside of the sealed tube 5 through the connecting hole. When a sufficient amount of gas is introduced into the sealed tube 5, the internal pressure of the sealed tube 5 will be transmitted to the pressure gauge 6 under the action of the air pressure to realize the detection of the internal pressure of the sealed tube 5.

[0022] As a further solution of the present invention, an anti-skid pad with a large friction coefficient is fixedly connected to the bottom of the base plate 1; When the above solution is put into actual use, the anti-skid pad increases the friction at the bottom of the base plate 1, so that the base plate 1 can be more stable when placed in use.

[0023] As a further solution of the present invention, the front end outer wall of the fixing plate 9 is a smooth outer wall, and a sealing gasket is embedded in the front end of the fixing plate 9; When the above solution is put into practical use, the smooth fixing plate 9 will not produce any gap after docking with the sealing tube 5, and will be further sealed and connected with the sealing tube 5 through the sealing gasket to ensure the airtightness of the sealing tube 5 after fixing.

[0024] Working principle: dock the sealing tube 5 to be tested with the connecting sleeve 17 on the fixed plate 9, then start the fixed motor 7 to drive the connecting plate 4 to rotate, and drive the connecting gear 10 to rotate on the fixed gear 3 through the connecting plate 4. When the connecting plate 4 is rotated to make the connecting gear 10 rotate together with the fixed plate 9, the connecting gear 10 is meshed with the fixed gear 3 so that it rotates during the rotation process. The connecting gear 10 self-rotates and drives the gear ring 14 meshed with it to rotate together. Due to the limiting effect of the limit frame 11 on the threaded rod 13, the threaded rod 13 will not rotate together with the gear ring 14, but when the gear ring 14 rotates, it drives the threaded rod 13 to slide along the limit frame 11, and the threaded rod 13 drives the push plate 8 at one end to slide. Due to the elastic effect of the reset spring 15 on the sliding ring 16, the connection between the first rotating block 18 and the second rotating block 19 is first deflected, so that the push plate 8 slides to the The distance between the rings 16 is compressed, and at the same time, the first rotating block 18 and the second rotating block 19 are flipped outward. When the first rotating block 18 and the second rotating block 19 can no longer flip, the push plate 8 pushes the sliding ring 16 to compress the reset spring 15 and slide along the threaded rod 13. The threaded rod 13 gradually slides so that the first rotating block 18 will contact the outer wall of the sealing tube 5, and as the threaded rod 13 slides, the first rotating block 18 gradually presses the sealing tube 5 to fix the sealing tube 5 on the fixing plate 9, thereby fixing the sealing tube 5. After fixing, gas is introduced into the sealing tube 5, which can be detected through the pressure gauge 6 at one end. After the detection is completed, the gas is released, and the connecting plate 4 is rotated in the opposite direction. Through a series of reverse transmissions, the first rotating block 18 and the second rotating block 19 are reset and separated from the fixing effect on the sealing tube 5, and the sealing tube 5 can be removed from the connecting sleeve 17.

Claims

1. A vacuum pressure instrument, comprising a base plate (1), a bracket (2) being fixedly connected to the top of the base plate (1), characterized in that: The front end of the bracket (2) is fixedly connected to a fixed gear (3), the front end of the fixed gear (3) is rotatably connected to a connecting plate (4), both ends of the connecting plate (4) are respectively fixedly connected to fixed plates (9), the rear end of the fixed plate (9) is rotatably connected to a connecting gear (10) for meshing with the fixed gear (3), the rear end of the fixed plate (9) is provided with a pressure gauge (6), and the fixed plate (9) is provided with an adjustment clamping assembly, the adjustment clamping assembly is used to seal and dock with the device to be tested, and to perform pressure detection through the pressure gauge (6).

2. The vacuum pressure instrument according to claim 1, characterized in that: The adjusting clamping assembly comprises a threaded rod (13), the threaded rod (13) being arranged inside a fixed plate (9), a toothed ring (14) being spirally connected to the threaded rod (13), the toothed ring (14) being meshed with the inside of a connecting gear (10), one end of the toothed ring (14) being fixedly connected to a connecting sleeve (17), the connecting sleeve (17) being rotatably sleeved inside the fixed plate (9), a sliding ring (16) being slidably sleeved on the threaded rod (13), one end of the sliding ring (16) being fixedly connected to a reset spring (15) for resetting the sliding ring, one end of the reset spring (15) being rotatably sleeved with the connecting sleeve (17) is fixedly connected, one end of the threaded rod (13) is fixedly connected to a push plate (8), one end of the push plate (8) is rotatably connected to a second rotating block (19), one end of the second rotating block (19) is rotatably connected to a first rotating block (18), one end of the first rotating block (18) is rotatably connected to a sliding ring (16), a limiting opening (12) is provided on one side of the threaded rod (13), one end of the fixed plate (9) is fixedly connected to a limiting frame (11), one end of the limiting frame (11) is slidably sleeved inside the limiting opening (12), and the pressure gauge (6) is fixed on the limiting frame (11).

3. The vacuum pressure instrument according to claim 1, characterized in that: A fixed motor (7) is fixedly connected to the top of the bracket (2); an output shaft of the fixed motor (7) passes through the fixed gear (3) and is fixedly connected to the connecting plate (4).

4. The vacuum pressure instrument according to claim 2, characterized in that: A push block (20) is fixedly connected to the push plate (8), and the push block (20) is used to push the second rotating block (19) to deflect it.

5. The vacuum pressure instrument according to claim 2, characterized in that: The circumferential outer diameters of the connecting sleeve (17) and the sliding ring (16) are the same as the diameter of the push plate (8).

6. The vacuum pressure instrument according to claim 2, characterized in that: A communication hole is provided inside the limiting frame (11), and the input end of the pressure gauge (6) is connected to the communication hole. One end of the communication hole passes through the fixing plate (9) and is arranged at the front end of the fixing plate (9).

7. The vacuum pressure instrument according to claim 1, characterized in that: An anti-skid pad with a large friction coefficient is fixedly connected to the bottom of the base plate (1).

8. The vacuum pressure instrument according to claim 2, characterized in that: The front end outer wall of the fixing plate (9) is a smooth outer wall, and a sealing gasket is embedded in the front end of the fixing plate (9).

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