Corrugated hose air tightness detection device

Abstract

The utility model relates to an air tightness detection device for a corrugated hose, which comprises a detection pool and is characterized in that the detection pool is connected with a plurality of groups of detection devices which are uniformly distributed along the longitudinal direction; each group of detection devices comprises two end sockets which are oppositely arranged left and right and are fixedly connected with the side wall of the detection pool, one end, located in the detection pool, of each end socket is a conical joint, each end socket on the left side is integrally and coaxially provided with an air inlet pipe, the inlet end of each air inlet pipe is fixedly connected with the outlet end of a guide pipe, and the outlet end of the guide pipe is fixedly connected with the air inlet pipe. The inlet end of each guide pipe is fixedly communicated with the outlet end of an electric air pump; a driving device fixedly connected with the inner wall of the detection pool is arranged on the rear side of each conical joint, each group of driving devices drives two fastening clamps which are oppositely arranged up and down relative to the conical joint on the corresponding side, each fastening clamp is arranged in an arc shape, and the inner edge of each fastening clamp is fixedly connected with an arc-shaped sealing soft lining.

Description

Technical Field

[0001] The utility model relates to the technical field of bellows detection devices, in particular to a bellows hose air tightness detection device. Background Art

[0002] The stainless steel corrugated hose is a special pipe for conveying combustible gas. It is a metal gas pipe hose that replaces the traditional snap-on rubber hose. It can solve the defects of the traditional rubber hose that is easy to fall off, easy to age, easy to be bitten by insects, and has a short service life.

[0003] During the production and processing of stainless steel hoses, in order to prevent air leakage during subsequent use and cause safety accidents, they need to be tested for air tightness before leaving the factory. At present, when testing the air tightness of stainless steel hoses, it is usually done by passing air into them and then testing the amount of leakage. However, this detection method is inefficient and cannot intuitively capture the leakage point. Therefore, this application specifically proposes a corrugated hose air tightness detection device to solve the above problem. Utility Model Content

[0004] In view of the above situation, in order to overcome the defects of the prior art, the utility model provides a corrugated hose air tightness detection device, and the technical solution to the problem is to include a detection pool, characterized in that the detection pool is connected to multiple groups of detection devices evenly distributed along the longitudinal direction;

[0005] Each group of the detection devices comprises two end caps which are arranged opposite to each other on the left and right and fixedly connected to the side wall of the detection pool, one end of each end cap located in the detection pool is a conical joint, each end cap on the left side is coaxially arranged with an air inlet pipe, the inlet end of each air inlet pipe is fixedly connected to the outlet end of the conduit, and the inlet end of each conduit is fixedly connected to the outlet end of the electric air pump;

[0006] A driving device fixedly connected to the inner wall of the detection pool is arranged on the rear side of each conical joint, and each group of the driving devices drives two fastening cards arranged vertically relative to the conical joints on the corresponding side thereof, and each of the fastening cards is arranged in an arc shape, and an arc-shaped sealing soft lining is fixedly connected to the inner edge of each fastening card.

[0007] Preferably, each group of the driving devices includes two support plates which are arranged correspondingly up and down and fixedly connected to the inner wall of the detection pool, the two support plates are fixedly connected to vertical rods at opposite ends, and the two support plates are also connected to a vertical shaft for rotation together, the vertical shaft is integrally and coaxially arranged with two screw rod portions with opposite thread rotation directions, the screw rod portions correspond one to one with the fastening cards, each of the screw rod portions is threadedly connected to a driving rod which is vertically slidably connected to the vertical rod, and each of the driving rods is fixedly connected to the fastening card on its corresponding side.

[0008] Preferably, the upper end of each vertical shaft is coaxially fixedly connected with a hand wheel.

[0009] The beneficial effects of the utility model are:

[0010] 1. When the present application is in use, each group of detection devices can detect one corrugated hose, and multiple groups can be set up to detect multiple corrugated hoses at the same time, greatly improving the detection efficiency.

[0011] 2. When the present application is in use, the two ends of the corrugated hose to be tested are respectively docked with two corresponding heads arranged on the left and right in the detection device, specifically with the conical joints of the heads. The outer edge of the conical joint has a certain taper to facilitate complete insertion with the corrugated hose, ensuring a tight connection while avoiding the cumbersome docking of the two due to caliber issues.

[0012] 3. In addition, under the action of the driving device, the fastening card and the sealing soft lining can be tightly fitted on the periphery of the conical joint and the corrugated hose, and then pressed on the connection between the corrugated hose and the conical joint to ensure that the connection is well sealed and firm. After the corrugated hose is fixed and plugged in, add water to immerse the corrugated hose into the test pool and start the electric air pump. The electric air pump delivers gas to the corrugated hose. If the corrugated hose leaks, bubbles will be generated in the water. The location of the bubble can also be accurately determined by the location of the leak. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a three-dimensional cross-sectional view of the utility model from the first viewing angle.

[0014] Figure 2 It is an enlarged view of area A in the first perspective stereoscopic cross-sectional view of the utility model.

[0015] Figure 3 This is a stereoscopic view from a second viewing angle of the present invention.

[0016] Figure 4 It is an enlarged view of area B in the second viewing angle stereoscopic view of the present invention.

[0017] Figure 5 This is a three-dimensional view from the third viewing angle of the present invention.

[0018] Reference numerals

[0019] 1. Detection pool, 2. Detection device, 3. Head, 4. Conical joint, 5. Inlet pipe, 6. Conduit, 7. Electric air pump, 8. Driving device, 9. Fastening card, 10. Sealing soft lining, 11. Support plate, 12. Vertical rod, 13. Vertical axis, 14. Screw part, 15. Driving rod, 16. Handwheel. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-5The specific implementation methods of the utility model are further described in detail.

[0021] Embodiment 1, the technical solution is that when the present application is in use, each group of detection devices 2 can detect one corrugated hose, and multiple groups can be set to detect multiple corrugated hoses at the same time, greatly improving the detection efficiency. When the present application is in use, the two ends of the corrugated hose to be detected are respectively docked with the two corresponding heads 3 arranged on the left and right in the detection device 2, specifically docked with the conical joints 4 of the heads 3. The outer edge of the conical joint 4 has a certain taper to facilitate complete plugging with the corrugated hose, ensuring a tight connection while avoiding the cumbersome docking of the two due to caliber issues.

[0022] In addition, under the action of the driving device 8, the fastening card 9 together with the sealing soft lining 10 can be closely attached to the periphery of the conical joint 4 and the corrugated hose, and then pressed against the connection between the corrugated hose and the conical joint 4 to ensure that the connection is well sealed and firm. After the corrugated hose is fixed and plugged, water that submerges the corrugated hose is added to the detection pool 1 and the electric air pump 7 is started. The electric air pump 7 delivers gas to the corrugated hose. If the corrugated hose leaks, bubbles will be generated in the water. The location of the bubble generation can also accurately determine the leaking location.

[0023] Embodiment 2, on the basis of embodiment 1, specifically, when the present application is in use, the two ends of the corrugated hose can be respectively connected to two left-right oppositely arranged heads 3 in the same detection device 2, that is, the end of the corrugated hose is plugged into the conical joint 4 of the head 3 (the conical joint 4 is inserted into the corrugated hose). After the plug-in is tight, in order to avoid the two from separating during the detection process, and in order to further ensure the air tightness of the connection between the head 3 and the conical joint 4, a driving device 8 is provided. The vertical axis 13 of the rotating driving device 8 is provided with a hand wheel 16 fixedly connected to the vertical axis 13 above the support plate 11 to facilitate the rotation of the vertical axis 13. When the vertical axis 13 rotates clockwise, the two screw rods 14 arranged integrally therewith will also rotate clockwise synchronously. Because the rotation directions of the two screw rods 14 are opposite, as the vertical axis 13 rotates clockwise, the two screw rods 14 will drive the driving rods 15 thereon to move relatively close to each other along the vertical rod 12, and then the fastening card 9 connected to the driving rod 15 will also move close to the conical joint 4. As the vertical axis 13 continues to rotate, the fastening card 9 together with the sealing soft lining 10 will fit tightly against the periphery of the conical joint 4 and the corrugated hose, and then be pressed against the connection between the corrugated hose and the conical joint 4. The sealing soft lining 10 is made of rubber material, and can ensure that it can be tightly pressed against the corrugated hose through its own deformation characteristics, thereby ensuring the tightness and airtightness of the connection between the conical joint 4 and the corrugated hose. Correspondingly, counterclockwise rotation of the vertical shaft 13 will cause the driving rods 15 on the two screw parts 14 to move away from each other, and then the fastening card 9 together with the sealing soft lining 10 will also be separated from the connection between the corrugated hose and the conical joint 4.

[0024] Embodiment 3, on the basis of embodiment 2, after the corrugated hose is plugged in and the fastening card 9 together with the sealing soft lining 10 are fastened to the outside of the corrugated hose by the driving device 8, clean water that submerges the corrugated hose is injected into the detection ruler, and then the electric air pump 7 is started, and the electric air pump 7 delivers air to the corrugated hose through the conduit 6 and the air inlet pipe 5 and the left end cap 3. With the delivery of gas, if the corrugated hose leaks, bubbles will be generated in the water, and the position of the leak can also be accurately determined by the position where the bubbles are generated. The present application has a simple structure, is easy to use, and has strong practicality.

Claims

1. A corrugated hose air tightness detection device (2), comprising a detection cell (1), characterized in that: The detection pool (1) is connected to a plurality of detection devices (2) evenly distributed in the longitudinal direction; Each group of the detection devices (2) comprises two end caps (3) arranged opposite to each other on the left and right and fixedly connected to the side wall of the detection pool (1); one end of each end cap (3) located in the detection pool (1) is a conical joint (4); each end cap (3) on the left side is coaxially arranged with an air inlet pipe (5); the inlet end of each air inlet pipe (5) is fixedly connected to the outlet end of a conduit (6); and the inlet end of each conduit (6) is fixedly connected to the outlet end of an electric air pump (7); A driving device (8) fixedly connected to the inner wall of the detection pool (1) is arranged on the rear side of each of the conical joints (4), and each group of the driving devices (8) drives two fastening cards (9) arranged vertically relative to the conical joints (4) on the corresponding side thereof, each of the fastening cards (9) is arranged in an arc shape, and an arc-shaped sealing soft lining (10) is fixedly connected to the inner edge of each of the fastening cards (9).

2. A corrugated hose air tightness detection device (2) according to claim 1, characterized in that: Each group of the driving devices (8) comprises two support plates (11) arranged in correspondence with each other and fixedly connected to the inner wall of the detection pool (1), the two support plates (11) are fixedly connected to the opposite ends of the vertical rods (12), and the two support plates (11) are also rotatably connected to a vertical shaft (13), and the vertical shaft (13) is integrally and coaxially arranged with two screw rod portions (14) with opposite thread rotation directions, the screw rod portions (14) correspond to the fastening clamps (9) one by one, and each of the screw rod portions (14) is threadedly connected to a driving rod (15) vertically slidably connected to the vertical rod (12), and each of the driving rods (15) is fixedly connected to the fastening clamp (9) on its corresponding side.

3. A corrugated hose air tightness detection device (2) according to claim 2, characterized in that: The upper end of each vertical shaft (13) is coaxially and fixedly connected with a hand wheel (16).

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