CN219064794U

CN219064794U - Air tightness detection device

Info

Publication number: CN219064794U
Application number: CN202223385840.3U
Authority: CN
Inventors: 刘海敏; 陈晓云; 朱光云; 李洪; 张鹏; 李隆印
Original assignee: Zhejiang Jiarui Steel Industry Co ltd
Current assignee: Zhejiang Jiarui Steel Industry Co ltd
Priority date: 2022-12-16
Filing date: 2022-12-16
Publication date: 2023-05-23
Anticipated expiration: 2032-12-16

Abstract

The utility model relates to the technical field of stainless steel tube air tightness detection, in particular to an air tightness detection device which comprises a machine shell, wherein two sides of the interior of the machine shell are fixedly connected with a first hydraulic cylinder, the output end of the first hydraulic cylinder is fixedly connected with a transverse plate, the bottom of the transverse plate is provided with a sealing device, the top of the transverse plate is fixedly provided with an air compressor, the middle of the front end of the machine shell is provided with a machine door, and the lower part of the front end of the machine shell is provided with an observation window. Through the cooperation between second pneumatic cylinder, straight-teeth gear, first riser and the first sealing block, adjust the second pneumatic cylinder, two racks drive first riser removal simultaneously, and first riser can drive first sealing block and remove, and two first sealing blocks can be with stainless steel pipe clamp in intermediate position, and certain deformation can take place for first sealing block simultaneously, can seal the stainless steel pipe of different external diameters, realizes carrying out sealing detection to the stainless steel pipe of different external diameters to gas tightness detection device's application range has been improved.

Description

Air tightness detection device

Technical Field

The utility model relates to the technical field of stainless steel tube air tightness detection, in particular to an air tightness detection device.

Background

After the stainless steel tube is produced, the air tightness of the stainless steel tube needs to be detected, and an air tightness detection device is needed.

For example, although the above document can detect the air tightness of a stainless steel pipe, when the air tightness detecting device in the above document is used, the air tightness detecting device in the above document can detect the air tightness of the stainless steel pipe by ventilating the inside of the stainless steel pipe and putting the stainless steel pipe into water, and simultaneously the above document seals both ends of the steel pipe by using a fixing cavity and a clamping cavity together, but the diameters of the fixing cavity and the clamping cavity cannot be changed due to the difference of the outer diameters of the stainless steel pipes in different models, so that the air tightness detecting device in the above document can only detect the sealing of the stainless steel pipes with the same outer diameter, and has the defect of limited application range.

Disclosure of Invention

The utility model aims to solve the problems that the air tightness detection device in the document can only carry out sealing detection on stainless steel pipes with the same outer diameter and has limited application range.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

the utility model provides a gas tightness detection device, includes the casing, the inside both sides of casing all rigid coupling has first pneumatic cylinder, the output rigid coupling of first pneumatic cylinder has the diaphragm, the bottom of diaphragm is provided with sealing device, air compressor is installed admittedly at the top of diaphragm, install the gate in the middle of the front end of casing, the observation window is installed to the front end below of casing.

Preferably, the sealing device comprises a second hydraulic cylinder, one end of the second hydraulic cylinder is fixedly connected with the transverse plate through a support, the output end of the second hydraulic cylinder is fixedly connected with a rack above the second hydraulic cylinder, the outer walls of the two racks are all meshed with a spur gear, the front end of the spur gear is rotationally connected with the transverse plate through a rotating shaft, one end of the rack is fixedly connected with a first vertical plate, the top end of the first vertical plate is in sliding connection with the transverse plate through a sliding groove, and the bottom of the first vertical plate is fixedly connected with a first sealing block.

Preferably, the outer walls of the two first sealing blocks are tightly attached to the stainless steel pipes.

Preferably, the inner wall of the first sealing block on the right side is fixedly connected with a telescopic pipe, and one end of the telescopic pipe is communicated with an air compressor.

Preferably, a glass water tank is arranged below the inside of the shell.

The air tightness detection device provided by the utility model has the beneficial effects that: through the cooperation between second pneumatic cylinder, the rack, the straight-tooth wheel, first riser and the first sealing block, adjust the second pneumatic cylinder, make the output of second pneumatic cylinder drive the rack of top and remove left, the rack of top drive below through the straight-tooth wheel moves right, two racks drive first riser simultaneously and remove, first riser can drive first sealing block and remove, two first sealing blocks can be with the stainless steel pipe clamp in intermediate position, certain deformation can take place for first sealing block simultaneously, can seal the stainless steel pipe of different external diameters, realize carrying out sealing detection to the stainless steel pipe of different external diameters, thereby improved gas tightness detection device's application range.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic front cross-sectional view of the interconnect structure of FIG. 1;

FIG. 3 is a schematic view of the connection structure at A in FIG. 2;

fig. 4 is a schematic diagram of the connection structure of embodiment 2 in fig. 2.

In the figure: 1. the device comprises a shell, 2, an observation window, 3, a door, 401, a second hydraulic cylinder, 402, a rack, 403, a spur gear, 404, a first vertical plate, 405, a first sealing block, 501, a motor, 502, a bevel gear group, 503, a screw, 504, a second vertical plate, 505, a second sealing block, 6, a first hydraulic cylinder, 7, a transverse plate, 8, an air compressor, 9, a telescopic pipe, 10, a stainless steel pipe, 11 and a glass water tank.

Detailed Description

The utility model is further described below with reference to the accompanying drawings:

example 1:

referring to fig. 1-4, in this embodiment: the utility model provides a gas tightness detection device, including casing 1, the inside both sides of casing 1 all rigid coupling has first pneumatic cylinder 6, the model of first pneumatic cylinder 6 is selected according to the in-service use demand, satisfy the work demand can, the output rigid coupling of first pneumatic cylinder 6 has diaphragm 7, the output of first pneumatic cylinder 6 promotes diaphragm 7 reciprocates, the bottom of diaphragm 7 is provided with sealing device, air compressor 8 is fixed at the top of diaphragm 7, air compressor 8's model is selected according to the in-service use demand, satisfy the work demand can, install the gate 3 in the middle of the front end of casing 1, change stainless steel pipe 10 through the gate 3, observation window 2 is installed to the front end below of casing 1, whether can observe stainless steel pipe 10 gas leakage through observation window 2.

Referring to fig. 2 and 3, the sealing device comprises a second hydraulic cylinder 401, a rack 402, a spur gear 403, a first vertical plate 404 and a first sealing block 405, one end of the second hydraulic cylinder 401 is fixedly connected with a transverse plate 7 through a bracket, the model of the second hydraulic cylinder 401 is selected according to actual use requirements, the working requirements are met, the output end of the second hydraulic cylinder 401 is fixedly connected with the upper rack 402, the output end of the second hydraulic cylinder 401 pushes the upper rack 402 to move left and right, the outer walls of the two racks 402 are in meshed connection with the spur gear 403, the upper rack 402 enables the lower rack 402 to move in opposite directions through the spur gear 403, the front end of the spur gear 403 is rotationally connected with the transverse plate 7 through a rotating shaft, one end of the rack 402 is fixedly connected with the first vertical plate 404, the rack 402 drives the first vertical plate 404 to move left and right, the top end of the first vertical plate 404 is slidingly connected with the transverse plate 7 through a sliding chute, the first vertical plate 404 is limited to slide left and right only, the first sealing block 405 is fixedly connected with the bottom of the first vertical plate 404, and the first sealing block 404 is driven to move;

adjust second pneumatic cylinder 401 for the output of second pneumatic cylinder 401 drives rack 402 of top and moves left, and rack 402 of top passes through rack 402 of spur gear 403 drive below and moves right, and two racks 402 drive first riser 404 simultaneously and move, and first riser 404 can drive first sealing block 405 and remove, and two first sealing blocks 405 can press from both sides nonrust steel pipe 10 in the intermediate position, and first sealing block 405 can take place certain deformation simultaneously, can seal nonrust steel pipe 10 of different external diameters, realizes carrying out sealing detection to nonrust steel pipe of different external diameters, thereby has improved gas tightness detection device's application range.

The outer wall of two first sealing blocks 405 is closely laminated with nonrust steel pipe 10, and first sealing block 405 is made by rubber materials, can produce certain deformation, thereby can seal nonrust steel pipe 10 of different external diameters, the inner wall of right side first sealing block 405 is fixed with flexible pipe 9 mutually, the one end and the air compressor 8 of flexible pipe 9 are linked together, air compressor 8 lets in the air through flexible pipe 9 to nonrust steel pipe 10 inside, in order to nonrust steel pipe 10's gas tightness detects, the inside below of casing 1 is provided with glass water tank 11, the inside water that is equipped with of glass water tank 11 for detect the gas tightness.

Working principle:

when the air tightness detection device is used, firstly, a user places a stainless steel pipe 10 to be detected between two first sealing blocks 405 through a machine door 3, then adjusts a second hydraulic cylinder 401, the output end of the second hydraulic cylinder 401 drives a rack 402 above to move leftwards, the rack 402 above drives a rack 402 below to move rightwards through a spur gear 403, two racks 402 simultaneously drive a first vertical plate 404 to move, the first vertical plate 404 can drive the first sealing blocks 405 to move, the two first sealing blocks 405 clamp the stainless steel pipe 10 at the middle position, meanwhile, the first sealing blocks 405 can deform to a certain extent, the stainless steel pipe 10 with different outer diameters can be sealed, the stainless steel pipes with different outer diameters are subjected to sealing detection, so that the application range of the air tightness detection device is improved, afterwards, the two first hydraulic cylinders 6 are adjusted, the output end of the first hydraulic cylinder 6 drives a transverse plate 7 to move downwards, the transverse plate 7 simultaneously drives the first vertical plate 404 to move downwards through the stainless steel pipe 10 of the sealing device, the first vertical plate 404 can drive the first sealing blocks 405 to move, the stainless steel pipe 10 is simultaneously, the first sealing blocks 404 can drive the first sealing blocks 405 to move, meanwhile, the first sealing blocks 405 can clamp the stainless steel pipe 10 at the middle position, the first sealing blocks 405 can deform to a certain extent, the stainless steel pipe 10 with different outer diameters can be sealed, the stainless steel pipe 10 with different outer diameters can be subjected to sealing detection, the stainless steel pipe with different outer diameters, the air quality can be tested by the air, the air can be tested by the air, and the air can be provided with a compressor 10, and the air quality can be tested by a compressor, and the air quality can be tested by the air, and the air can be different, and the air quality can be tested.

Example 2:

referring to fig. 4, in this embodiment: the sealing device further comprises a motor 501, a bevel gear group 502, a screw 503, a second vertical plate 504 and a second sealing block 505, wherein the outer wall of the motor 501 is fixedly connected with the transverse plate 7 through a bracket, the model of the motor 501 is selected according to actual use requirements, the motor 501 can meet the working requirements, the bevel gear group 502 is fixedly connected to the output end of the motor 501, the bevel gear group 502 is driven to rotate by the output end of the motor 501, the bevel gear group 502 is formed by three identical bevel gears in a meshed connection mode, the screw 503 is fixedly connected to the two ends of the bevel gear group 502, the bevel gear group 502 drives the two screws 503 to reversely rotate, the outer wall of the screw 503 is in threaded connection with the second vertical plate 504, and as the screw 503 on the two sides is in the same thread direction, the two second vertical plates 504 move in opposite directions, one end of each second vertical plate 504 is in sliding connection with the transverse plate 7 through a sliding way, the second vertical plate 504 can only slide left and right, the other end of each second vertical plate 504 is fixedly connected with the second sealing block 505, the second vertical plate 504 drives the second sealing block 505 to move, the outer walls of the two second sealing blocks 505 are in tight fit with the second sealing blocks 10, and the inner walls of the two sealing blocks are made of the same telescopic pipe and are tightly connected with the second sealing blocks 505, and are made of materials;

the user is through the external power supply who switches on motor 501 for the output of motor 501 drives bevel gear group 502 and rotates, and bevel gear group 502 can make two screw rods 503 reverse rotation, because the screw rod 503 screw thread direction of both sides is the same, makes two second risers 504 remove to the centre simultaneously, and second riser 504 drives second sealing block 505 and removes, and two second sealing blocks 505 can press from both sides nonrust steel pipe 10 in the centre, and second sealing block 505 can take place certain deformation simultaneously, can seal nonrust steel pipe 10 of different external diameters, realizes carrying out sealing detection to nonrust steel pipe of different external diameters, thereby has improved gas tightness detection device's application range.

Working principle:

when the sealing device is used, a user drives the bevel gear set 502 to rotate by switching on an external power supply of the motor 501, the bevel gear set 502 can enable the two screws 503 to reversely rotate, as the screw thread directions of the screws 503 on two sides are the same, the two second vertical plates 504 simultaneously move towards the middle, the second vertical plates 504 drive the second sealing blocks 505 to move, the two second sealing blocks 505 can clamp the stainless steel pipe 10 in the middle, meanwhile, the second sealing blocks 505 can deform to a certain extent, the stainless steel pipes 10 with different outer diameters can be sealed, and the sealing detection of the stainless steel pipes with different outer diameters is realized, so that the application range of the air tightness detection device is improved, and the use of the device is completed.

While the utility model has been shown and described with reference to a preferred embodiment, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the scope of the utility model.

Claims

1. The utility model provides a gas tightness detection device, includes casing (1), its characterized in that: the novel air compressor is characterized in that first hydraulic cylinders (6) are fixedly connected to two sides of the interior of the casing (1), a transverse plate (7) is fixedly connected to the output end of each first hydraulic cylinder (6), a sealing device is arranged at the bottom of each transverse plate (7), an air compressor (8) is fixedly arranged at the top of each transverse plate (7), a machine door (3) is arranged in the middle of the front end of the casing (1), and an observation window (2) is arranged below the front end of the casing (1).

2. The air tightness detection device according to claim 1, wherein: sealing device includes second pneumatic cylinder (401), the one end of second pneumatic cylinder (401) is through support and diaphragm (7) looks rigid coupling, the output of second pneumatic cylinder (401) is rigid coupling mutually with rack (402) of top, two the outer wall of rack (402) all is connected with spur gear (403) meshing, the front end of spur gear (403) is rotated through pivot and diaphragm (7) and is connected, the one end of rack (402) all is rigid coupling has first riser (404), the top of first riser (404) is through spout and diaphragm (7) sliding connection, the bottom rigid coupling of first riser (404) has first sealing block (405).

3. The air tightness detection device according to claim 2, wherein: the outer walls of the two first sealing blocks (405) are tightly attached to the stainless steel pipes (10).

4. The air tightness detection device according to claim 2, wherein: the inner wall of the first sealing block (405) on the right side is fixedly connected with a telescopic pipe (9), and one end of the telescopic pipe (9) is communicated with an air compressor (8).

5. The air tightness detection device according to claim 1, wherein: a glass water tank (11) is arranged below the inside of the shell (1).