Portable air tightness detector

Abstract

The utility model belongs to the technical field of air tightness detection, and particularly relates to a portable air tightness detector, which comprises a detector body. The side wall of the detection machine body is fixedly connected with an air guide pipe; a connecting assembly is mounted at the other end of the air guide pipe; the connecting assembly comprises a round pipe; the circular tube is in threaded connection with the connecting assembly; a plurality of first elastic plates are fixedly connected to the end part of the circular pipe; the thicknesses of the first elastic plates are gradually changed, and the ends, away from the circular pipe, of the first elastic plates are thicker than the ends, close to the circular pipe, of the first elastic plates. A fixed rod is fixedly connected to the middle part of the circular tube; the middle part of the fixed rod is in threaded connection with an adjusting bolt; through the structure, the air tightness detector can be conveniently connected with the end part of the detected pipeline, and the situation of loose connection caused by deformation of the end part of the pipeline is reduced in a manner of applying pressure to the pipeline from inside to outside, so that when air tightness detection is carried out, the detection efficiency is improved. And the occurrence of abnormal detection results caused by air leakage at the joint is reduced.

Description

Technical Field

[0001] The utility model belongs to the technical field of air tightness detection, in particular to a portable air tightness detector. Background Art

[0002] Air tightness tester is an important tool for evaluating the leak-proof effect of products or systems under specific conditions and is widely used in many fields.

[0003] An air tightness tester generally connects the test instrument to the object to be tested using components such as a conduit, then fills the object with gas, and stops supplying gas when the air pressure inside the object reaches a certain level. Then, the air pressure is observed to see if it changes to determine if the object is leaking. During home decoration, it is necessary to use a portable air tightness tester to perform an air tightness test before the gas pipeline or heating network system is put into use. During operation, the conduit of the instrument needs to be connected to the end of the pipeline to be tested. When the connector of the portable air tightness tester is connected to the pipeline, it mainly achieves anti-detachment by squeezing the outer wall of the pipeline. This connection method will cause the end of the pipeline to deform, which is prone to leakage and leads to abnormal test results.

[0004] To this end, the utility model provides a portable air tightness detector. Utility Model Content

[0005] In order to make up for the deficiencies of the prior art, at least one technical problem raised in the background technology is solved.

[0006] The technical solution adopted by the utility model to solve its technical problems is as follows: a portable air tightness detector described in the utility model comprises a detection body; an air guide tube is fixedly connected to the side wall of the detection body; a connecting assembly is installed at the other end of the air guide tube; the connecting assembly comprises a round tube; the round tube and the connecting assembly are threadedly connected; a plurality of first elastic plates are fixedly connected to the end of the round tube; the thickness of the plurality of first elastic plates is gradually set, and the end of the first elastic plate away from the round tube is thicker than the end close to the round tube; a fixing rod is fixedly connected to the middle of the round tube; an adjusting bolt is threadedly connected to the middle of the fixing rod; a first fixing ring is fixedly connected to the end of the adjusting bolt close to the plurality of first elastic plates; a rubber ring is fixedly connected to the middle of the outer side of the round tube; through the above structure, the air tightness detector can be conveniently connected to the end of the pipeline to be detected, and by applying pressure to the pipeline from the inside to the outside, the loose connection caused by the deformation of the pipeline end can be reduced, thereby reducing the occurrence of abnormal detection results caused by leakage at the connection when performing air tightness detection.

[0007] Preferably, a second fixing ring is fixedly connected to the outer side of the circular tube; a plurality of second elastic plates are slidably connected to the middle part of the second fixing ring; an extrusion plate is fixedly connected to the end of the second elastic plate close to the first elastic plate; the thickness of the extrusion plate is gradually set, and the end of the extrusion plate away from the second elastic plate is thicker than the end close to the circular tube; a first screw sleeve is threadedly connected to the middle part of a plurality of the extrusion plates; a second screw sleeve is threadedly connected to the middle part of a plurality of the second elastic plates; the second screw sleeve is located on the side of the second fixing ring away from the plurality of first elastic plates; through the above structure, the rubber ring can be more tightly combined with the end of the tested pipe, further reducing the occurrence of air leakage, thereby making the air tightness test result more accurate.

[0008] Preferably, the side walls of the detection body are symmetrically arranged and slidably connected with a pair of slides; the side walls of the slides are fixedly connected with a winding rod; through the above structure, the entanglement of the airway tubes caused by the airway tubes being randomly stacked and shaking and squeezing each other when the instrument is transferred is reduced, thereby reducing the inconvenience of opening or damage caused by entanglement when the airway tubes are pulled out.

[0009] Preferably, an elastic rope is fixed to the middle of the slide plate; the other end of the elastic rope is fixed to the nearest side wall of the detection body; through the above structure, the air duct wound in the middle of a pair of winding rods is tightened, reducing the occurrence of the air duct loosening from the middle of a pair of winding rods.

[0010] Preferably, a pull rope is fixedly connected to one end of the winding rod away from the skateboard; the other end of the pull rope is fixedly connected to a pull hook; through the above structure, the air guide tube wound around the middle of a pair of winding rods can be tightened, further reducing the occurrence of the wound air guide tube loosening from the middle of a pair of winding rods.

[0011] Preferably, a storage drawer is slidably connected to the middle part of the detection body; a plurality of placement grooves are provided inside the storage drawer; through the above structure, connection components of different sizes can be conveniently carried, and pipes of different diameters can be connected and air tightness detection can be performed, thereby improving the scope of application of the device.

[0012] Preferably, a rubber pad is fixed to the side wall of the extrusion plate; the rubber pad is located on the side of the extrusion plate facing the first elastic plate; through the above structure, the rigid extrusion between the extrusion plate and the outer wall of the pipe can be reduced, thereby reducing the occurrence of damage to the outer wall of the pipe due to extrusion.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The portable air tightness tester described in the utility model can conveniently connect the air tightness tester to the end of the tested pipe through the arrangement of the round tube, the first elastic plate, the adjusting bolt, the first fixing ring and the rubber ring, and reduce the occurrence of loose connection caused by deformation of the pipe end by applying pressure to the pipe from the inside to the outside, thereby reducing the occurrence of abnormal test results caused by air leakage at the connection when performing air tightness testing.

[0015] 2. The portable air tightness tester described in the utility model can make the rubber ring and the end of the tested pipe more tightly combined through the arrangement of the second fixing ring, the second elastic plate, the extrusion plate, the first screw sleeve and the second screw sleeve, further reduce the occurrence of air leakage, and thus make the air tightness test result more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model will be further described below in conjunction with the accompanying drawings.

[0017] Figure 1 It is a three-dimensional diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the connection assembly in the utility model;

[0019] Figure 3 It is a cross-sectional view of the connection assembly in the utility model;

[0020] Figure 4 It is a structural schematic diagram of the winding rod in the utility model;

[0021] In the figure: 1. detection body; 12. air duct; 13. connection assembly; 14. round tube; 15. first elastic plate; 16. fixing rod; 17. adjusting bolt; 18. first fixing ring; 19. rubber ring; 2. second fixing ring; 21. second elastic plate; 22. extrusion plate; 23. first screw sleeve; 24. second screw sleeve; 3. slide plate; 31. winding rod; 4. elastic rope; 5. pull rope; 51. pull hook; 6. storage drawer; 61. placement groove; 7. rubber pad. DETAILED DESCRIPTION

[0022] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0023] like Figures 1 to 3As shown, a portable air tightness detector according to an embodiment of the utility model comprises a detection body 1; an air duct 12 is fixedly connected to the side wall of the detection body 1; a connecting assembly 13 is installed at the other end of the air duct 12; the connecting assembly 13 comprises a round tube 14; the round tube 14 and the connecting assembly 13 are threadedly connected; a plurality of first elastic plates 15 are fixedly connected to the end of the round tube 14; the thickness of the plurality of first elastic plates 15 is gradually set, and the end of the first elastic plate 15 away from the round tube 14 is thicker than close to one end of the round tube 14; a fixing rod 16 is fixedly connected to the middle of the round tube 14; an adjusting bolt 17 is threadedly connected to the middle of the fixing rod 16; a first fixing ring 18 is fixedly connected to one end of the adjusting bolt 17 close to the multiple first elastic plates 15; a rubber ring 19 is fixedly connected to the middle of the outer side of the round tube 14; when working, first connect the connecting assembly 13 to the end of the pipeline that needs to be tested for air tightness, and the operation method is to first insert the multiple first elastic plates 15 into the end of the pipeline, and make the end of the pipeline and the rubber ring 19 close to each other. 9 is tightly fitted, and then the adjusting bolt 17 is rotated to drive the first fixing ring 18 to move from the thinner end of the plurality of first elastic plates 15 to the thicker end of the plurality of first elastic plates 15. The first fixing ring 18 will squeeze the thicker end of the plurality of first elastic plates 15, so that the thicker end of the plurality of first elastic plates 15 squeezes the inner wall of the detected pipe, thereby increasing the friction between the plurality of first elastic plates 15 and the inner wall of the pipe, so that the round pipe 14 and the pipe will not easily move relative to each other, thereby keeping the end of the pipe in close contact with the rubber ring 19, and then connecting the air guide tube 12 to the round pipe 14. After completion, the detection body 1 can be started to fill the pipe with gas and detect the change in air pressure to realize the air tightness detection of the pipe. Through the above structure, the air tightness detector can be conveniently connected to the end of the detected pipe, and by applying pressure to the pipe from the inside to the outside, the loose connection caused by the deformation of the pipe end can be reduced, thereby reducing the occurrence of abnormal detection results caused by leakage at the connection when performing air tightness detection.

[0024] like Figures 1 to 3As shown, a second fixing ring 2 is fixedly connected to the outer side of the circular tube 14; a plurality of second elastic plates 21 are slidably connected to the middle part of the second fixing ring 2; an extrusion plate 22 is fixedly connected to the end of the second elastic plate 21 close to the first elastic plate 15; the thickness of the extrusion plate 22 is gradually set, and the end of the extrusion plate 22 away from the second elastic plate 21 is thicker than the end close to the circular tube 14; a first screw sleeve 23 is threadedly connected to the middle part of the plurality of extrusion plates 22; a second screw sleeve 24 is threadedly connected to the middle part of the plurality of second elastic plates 21; the second screw sleeve 24 is located on the side of the second fixing ring 2 away from the plurality of first elastic plates 15; when working, after the plurality of first elastic plates 15 are inserted into the end part of the pipe and the end part of the pipe is fitted with the rubber ring 19, the first screw sleeve 23 is first rotated to make The first screw sleeve 23 moves toward the thicker end of the multiple extrusion plates 22, so that the friction between the multiple extrusion plates 22 and the outer wall of the pipeline is increased, so that relative sliding between the multiple extrusion plates 22 and the pipeline will not easily occur, and then the second screw sleeve 24 is rotated to move the second screw sleeve 24 toward the direction of the first screw sleeve 23. The second screw sleeve 24 will squeeze the second fixing ring 2 and drive the second fixing ring 2 and the round tube 14 to move toward the inside of the pipeline, so that the rubber ring 19 is more tightly combined with the end of the pipeline, and finally the adjusting bolt 17 is rotated to drive the first fixing ring 18 to squeeze the thicker ends of the multiple first elastic plates 15. Through the above structure, the rubber ring 19 can be more tightly combined with the end of the tested pipeline, further reducing the occurrence of air leakage, so that the air tightness detection result is more accurate.

[0025] like Figures 1 to 4 As shown, the side walls of the detection body 1 are symmetrically provided with a pair of slide plates 3 in sliding connection; the side walls of the slide plates 3 are fixedly connected with winding rods 31; during operation, after completing the air tightness test of the pipeline, the connection with the pipeline is released, and then the air guide tube 12 is wound around the middle of the pair of winding rods 31, and the air guide tube 12 is protected by closing the cover, and the entanglement caused by the air guide tube 12 being randomly stacked and shaking and squeezing each other when the instrument is transferred is reduced, thereby reducing the inconvenience of opening or damage caused by the entanglement when the air guide tube 12 is pulled out.

[0026] like Figures 1 to 4 As shown, an elastic rope 4 is fixedly connected to the middle of the slide plate 3; the other end of the elastic rope 4 is fixedly connected to the nearest side wall of the detection body 1; during operation, after the air duct 12 is wound around the middle of a pair of winding rods 31, the pair of winding rods 31 will be pulled away from each other by the pair of elastic ropes 4, so that the air duct 12 wound around the middle of the pair of winding rods 31 is tightened, reducing the possibility of the air duct 12 loosening from the middle of the pair of winding rods 31.

[0027] like Figures 1 to 4As shown, the end of the winding rod 31 away from the slide plate 3 is fixedly connected to a pull rope 5; the other end of the pull rope 5 is fixedly connected to a hook 51; during operation, before the air duct 12 is wound around the middle of the pair of winding rods 31, the pair of winding rods 31 are brought close to each other, at which time the pair of elastic ropes 4 are stretched to a greater length and thus have a greater elastic force, and then the pair of pull ropes 5 are hooked with each other, and then the air duct 12 is wound, and after the winding is completed, the pair of hooks 51 are separated, and at this time the pair of winding rods 31 will be pulled away from each other by the pair of elastic ropes 4, and because the pair of elastic ropes 4 have accumulated greater elastic potential energy, the air duct 12 wound around the middle of the pair of winding rods 31 can be stretched tighter, further reducing the occurrence of the wound air duct 12 loosening from the middle of the pair of winding rods 31.

[0028] like Figure 1 As shown, a storage drawer 6 is slidably connected to the middle of the detection body 1; a plurality of placement grooves 61 are provided inside the storage drawer 6; when working, connection components 13 of different sizes can be placed in the plurality of placement grooves 61 for carrying, and when performing air tightness detection on pipes of different diameters, connection components 13 of corresponding diameters can be conveniently selected, thereby improving the application scope of the device.

[0029] like Figure 2 and Figure 3 As shown, the side wall of the extrusion plate 22 is fixed with a rubber pad 7; the rubber pad 7 is located on the side of the extrusion plate 22 facing the first elastic plate 15; through the above structure, the rigid extrusion between the extrusion plate 22 and the outer wall of the pipeline can be reduced, thereby reducing the occurrence of damage to the outer wall of the pipeline due to extrusion.

[0030] When working, first connect the connection assembly 13 to the end of the pipe that needs to be tested for air tightness. The operation method is to first insert the multiple first elastic plates 15 into the end of the pipe, and make the end of the pipe fit tightly with the rubber ring 19, and then rotate the adjusting bolt 17 to drive the first fixing ring 18 to move from the thinner end of the multiple first elastic plates 15 to the thicker end of the multiple first elastic plates 15. The first fixing ring 18 will squeeze the thicker end of the multiple first elastic plates 15, so that the thicker end of the multiple first elastic plates 15 squeezes the inner wall of the tested pipe, increasing the friction between the multiple first elastic plates 15 and the inner wall of the pipe, so that the round tube 14 and the pipe are tightly connected. It will not easily produce relative movement, so that the end of the pipeline is kept in close contact with the rubber ring 19, and then the air guide tube 12 is connected to the round tube 14. After completion, the detection body 1 can be started to fill the pipeline with gas and detect the change in air pressure to achieve air tightness detection of the pipeline, and then multiple first elastic plates 15 are inserted into the end of the pipeline, and after the end of the pipeline is fitted with the rubber ring 19, the first screw sleeve 23 is first rotated to move the first screw sleeve 23 toward the thicker end of the multiple extrusion plates 22, so that the friction between the multiple extrusion plates 22 and the outer wall of the pipeline is increased, so that the multiple extrusion plates 22 and the pipeline will not easily produce relative sliding, and then the first screw sleeve 23 is ... multiple extrusion plates 22 and the pipeline will not easily produce relative sliding, and then the first screw sleeve 23 is The second screw sleeve 24 moves the second screw sleeve 24 toward the direction of the first screw sleeve 23, and the second screw sleeve 24 squeezes the second fixing ring 2 and drives the second fixing ring 2 and the round tube 14 to move toward the inside of the pipeline, so that the rubber ring 19 is more tightly combined with the end of the pipeline, and finally the adjusting bolt 17 is rotated to drive the first fixing ring 18 to squeeze the thicker ends of the plurality of first elastic plates 15. After completing the air tightness test of the pipeline, the connection with the pipeline is released, and then the air guide tube 12 is wound around the middle of a pair of winding rods 31, and the air guide tube 12 is protected by closing the cover. After the air guide tube 12 is wound around the middle of a pair of winding rods 31, the pair of winding rods 31 are closed. 31 will move away from each other due to the pulling of the pair of elastic ropes 4, so that the air duct 12 wound around the middle of the pair of winding rods 31 is tightened. Before the air duct 12 is wound around the middle of the pair of winding rods 31, the pair of winding rods 31 are moved closer to each other. At this time, the pair of elastic ropes 4 are stretched to a greater length and thus have a greater elastic force. Then, the pair of pull ropes 5 are hooked with each other, and the air duct 12 is wound. After the winding is completed, the pair of pull hooks 51 are separated. At this time, the pair of winding rods 31 will move away from each other under the pulling of the pair of elastic ropes 4, and because the pair of elastic ropes 4 have accumulated greater elastic potential energy, the air duct 12 wound around the middle of the pair of winding rods 31 can be tightened.

[0031] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principles of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A portable air tightness detector, comprising a detection body (1); characterized in that: An air duct (12) is fixedly connected to the side wall of the detection body (1); a connecting assembly (13) is installed at the other end of the air duct (12); the connecting assembly (13) comprises a round tube (14); the round tube (14) and the connecting assembly (13) are threadedly connected; a plurality of first elastic plates (15) are fixedly connected to the end of the round tube (14); the thickness of the plurality of first elastic plates (15) is gradually set, and the end of the first elastic plate (15) away from the round tube (14) is thicker than the end close to the round tube (14); a fixing rod (16) is fixedly connected to the middle of the round tube (14); an adjusting bolt (17) is threadedly connected to the middle of the fixing rod (16); a first fixing ring (18) is fixedly connected to the end of the adjusting bolt (17) close to the plurality of first elastic plates (15); a rubber ring (19) is fixedly connected to the middle of the outer side of the round tube (14).

2. A portable air tightness detector according to claim 1, characterized in that: A second fixing ring (2) is fixedly connected to the outer side of the circular tube (14); a plurality of second elastic plates (21) are slidably connected to the middle of the second fixing ring (2); an extrusion plate (22) is fixedly connected to one end of the second elastic plate (21) close to the first elastic plate (15); the thickness of the extrusion plate (22) is gradually set, and the end of the extrusion plate (22) away from the second elastic plate (21) is thicker than the end close to the circular tube (14); a first screw sleeve (23) is threadedly connected to the middle of the plurality of extrusion plates (22); a second screw sleeve (24) is threadedly connected to the middle of the plurality of second elastic plates (21); the second screw sleeve (24) is located on the side of the second fixing ring (2) away from the plurality of first elastic plates (15).

3. A portable air tightness detector according to claim 1, characterized in that: A pair of slide plates (3) are symmetrically arranged on the side walls of the detection body (1) and are slidably connected thereto; a winding rod (31) is fixedly connected to the side walls of the slide plates (3).

4. A portable air tightness detector according to claim 3, characterized in that: An elastic rope (4) is fixedly connected to the middle of the slide plate (3); the other end of the elastic rope (4) is fixedly connected to the nearest side wall of the detection body (1).

5. A portable air tightness detector according to claim 3, characterized in that: One end of the winding rod (31) away from the slide plate (3) is fixedly connected to a pull rope (5); the other end of the pull rope (5) is fixedly connected to a pull hook (51).

6. A portable air tightness detector according to claim 1, characterized in that: A storage drawer (6) is slidably connected to the middle of the detection body (1); a plurality of placement grooves (61) are provided inside the storage drawer (6).

7. A portable air tightness detector according to claim 2, characterized in that: A rubber pad (7) is fixedly connected to the side wall of the extrusion plate (22); the rubber pad (7) is located on the side of the extrusion plate (22) facing the first elastic plate (15).

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