CN219161558U

CN219161558U - Tightness detection device

Info

Publication number: CN219161558U
Application number: CN202223483084.8U
Authority: CN
Inventors: 杨传真
Original assignee: Shanghai Lianjie Electromechanical Technology Co ltd
Current assignee: Shanghai Lianjie Electromechanical Technology Co ltd
Priority date: 2022-12-26
Filing date: 2022-12-26
Publication date: 2023-06-09
Anticipated expiration: 2032-12-26

Abstract

The utility model discloses a tightness detection device, which comprises a box body, an air pipe and the following components: the gas concentration sensor is arranged in the box body and used for detecting the gas concentration in the box body; the positioning and clamping mechanism is connected with the box body and used for limiting the position of the piece to be detected; the gas injection mechanism is connected with the gas pipe and is used for carrying out gas injection treatment on the to-be-detected piece; the air injection mechanism comprises a motor, a pipe body A, a transmission pair and a pushing assembly, wherein the motor is connected with the pipe body A through transmission, the pipe body A penetrates through the box body and is rotationally connected with the box body, the transmission pair is connected with the pushing assembly, the pushing assembly is connected with the pipe body A, and the motor is connected with the box body in a detachable mode through a bolt assembly; the utility model can accurately seal and inject gas into the to-be-detected piece, and can detect the tightness of the to-be-detected piece by comparing the relative gas concentration changes of the box body before and after gas injection.

Description

Tightness detection device

Technical Field

The utility model belongs to the technical field of detection devices, and particularly relates to a tightness detection device.

Background

The common sealing characteristic detection method comprises a foam method or a water immersion method, namely, a certain pressure gas is introduced into a closed cavity, soap foam and the like are used for being smeared on corresponding leakage parts, or tested equipment is put into water, dynamic change of the foam or the condition of bubbles in the water is observed, so that the sealing performance of the equipment is judged, and although the operation mode can detect the sealing performance of a piece to be tested by observing the dynamic change of the foam or the condition of the bubbles in the water, the observation effect is poor for the tiny air leakage condition of the piece to be tested.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a tightness detection device which solves the problems.

In order to achieve the above purpose, the utility model is realized by the following technical scheme: the utility model provides a leakproofness detection device, includes box and trachea, still includes:

the gas concentration sensor is arranged in the box body and used for detecting the gas concentration in the box body;

the positioning and clamping mechanism is connected with the box body and used for limiting the position of the piece to be detected; and

the gas injection mechanism is connected with the gas pipe and is used for carrying out gas injection treatment on the to-be-detected piece;

the gas injection mechanism comprises a motor, a pipe body A, a sealing cylinder and a pushing assembly, wherein the motor is connected with the pipe body A through transmission pair transmission, the pipe body A penetrates through the box body and is rotationally connected with the box body, the sealing cylinder is connected with the pushing assembly, the pushing assembly is connected with the pipe body A, and the motor is connected with the box body in a detachable mode through a bolt assembly.

Based on the technical scheme, the utility model also provides the following optional technical schemes:

the technical scheme is as follows: the positioning and clamping mechanism comprises a linear motion piece, a connecting disc, a V-shaped plate and a rod body, wherein the connecting disc is fixedly connected with the linear motion piece, the linear motion piece is fixedly connected with a box body, the rod body is in sliding fit with the V-shaped plate, the rod body is hinged with the connecting disc, and the V-shaped plate is rotationally connected with the box body and further comprises:

and the pressure relieving assembly is connected with the V-shaped plate and is used for carrying out flexible pressure relieving treatment on the piece to be tested.

The technical scheme is as follows: the pushing assembly comprises a pipe body B, a limiting block and an elastic piece A, wherein the pipe body B is in sliding fit with the limiting block, the limiting block is arranged in the box body and is fixedly connected with the box body, the pipe body B is in threaded connection with the pipe body A, the pipe body B is fixedly connected with an air pipe, the elastic piece A is located in the pipe body A and is fixedly connected with the pipe body A and the pipe body B, and the sealing cylinder is sleeved on the pipe body B.

The technical scheme is as follows: the pressure relief assembly comprises an arc-shaped plate, a sliding block, an elastic piece B and a connecting rod, wherein the connecting rod is hinged with the arc-shaped plate and the sliding block, the sliding blocks are in sliding fit with the V-shaped plate, and the elastic piece B is arranged in the V-shaped plate and fixedly connected with the V-shaped plate and the sliding block.

The technical scheme is as follows: the pipe body B is fixedly connected with a baffle, the original inner diameter of the sealing cylinder is smaller than the diameter of the pipe body B, and the outer diameter of the sealing cylinder is larger than the inner diameter of an opening pipeline of the piece to be detected.

The technical scheme is as follows: the air pipe extends into the pipe body A and is fixedly connected with the pipe body B.

Advantageous effects

The utility model provides a tightness detection device, which has the following beneficial effects compared with the prior art:

1. the positioning and clamping mechanism can limit the piece to be detected in the box body, meanwhile, the motor drives the pipe body A to rotate in the vertical direction through the transmission pair, the pipe body A drives the pushing assembly to insert the sealing cylinder into an opening pipeline of the piece to be detected and utilize the air pipe to inject air into the piece to be detected, at the moment, the air concentration sensor detects the concentration of injected air in the box body, and related technicians inject the air into the box body before and after the piece to be detected through contrast injection air, so that the technical effect of detecting the tightness of the piece to be detected is achieved.

2. The linear motion piece can promote the connection pad and carry out the linear motion on vertical direction in the box, and the connection pad promotes the body of rod and drives the relative box of V shaped plate and carry out the rotation on the horizontal direction, and a plurality of V shaped plate all promotes the arc that is matched with it and contradicts the piece that awaits measuring, and the V shaped plate continuously promotes the arc and supports the piece that awaits measuring, and the arc promotes two sliders through the connecting rod and carries out the mode of the opposite linear motion of direction along the V shaped plate, realizes carrying out the flexible technical effect that slowly presses location centre gripping to the piece that awaits measuring.

Drawings

FIG. 1 is a schematic three-dimensional structure of the present utility model.

Fig. 2 is a schematic diagram of the overall structure of the present utility model.

Fig. 3 is a schematic structural view of the pushing assembly of the present utility model.

Fig. 4 is a schematic structural view of the positioning and clamping assembly of the present utility model.

Reference numerals annotate: 1. a case; 2. an air pipe; 3. an air injection mechanism; 301. a motor; 302. a pipe body A; 303. a sealing cylinder; 304. a pushing assembly; 3041. a pipe body B; 3042. a limiting block; 3043. an elastic member A; a transmission pair 305; 4. positioning the clamping assembly; 401. a linear motion member; 402. a connecting disc; 403. a V-shaped plate; 404. a pressure relief assembly; 4041. an arc-shaped plate; 4042. a slide block; 4043. an elastic member B; 4044. and a connecting rod.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.

Specific implementations of the utility model are described in detail below in connection with specific embodiments.

Referring to fig. 1 to 3, a tightness detecting device according to an embodiment of the present utility model includes a case 1 and an air pipe 2, and further includes:

a gas concentration sensor (not shown) installed in the case 1 for detecting the concentration of the gas in the case 1;

the positioning and clamping mechanism is connected with the box body 1 and used for limiting the position of the piece to be detected; the gas injection mechanism 3 is connected with the gas pipe 2 and is used for carrying out gas injection treatment on the to-be-detected piece;

the gas injection mechanism 3 comprises a motor 301, a pipe body A302, a sealing cylinder 303 and a pushing assembly 304, wherein the motor 301 and the pipe body A302 are in transmission connection through a transmission pair 305, the pipe body A302 penetrates through the box body 1 and is in rotary connection with the box body 1, the sealing cylinder 303 is connected with the pushing assembly 304, the pushing assembly 304 is connected with the pipe body A302, and the motor 301 is in detachable connection with the box body 1 through a bolt assembly (not marked in the drawing).

Specifically, the pushing assembly 304 includes a pipe body B3041, a limiting block 3042, and an elastic member a3043, where the pipe body B3041 is slidably matched with the limiting block 3042, the limiting block 3042 is disposed in the box body 1 and is fixedly connected with the box body 1, the pipe body B3041 is in threaded connection with the pipe body a302, the pipe body B3041 is fixedly connected with the air pipe 2, and the elastic member a3043 is disposed in the pipe body a302 and is fixedly connected with the pipe body a302 and the pipe body B3041, and the sealing cylinder 303 is sleeved on the pipe body B3041. The motor 301 drives the pipe body A302 to rotate in the vertical direction through the transmission pair 305, and the pipe body A302 pushes the pipe body B3041 in threaded connection with the pipe body A302 to perform linear motion in the non-vertical direction along the length direction of the pipe body A302, so that the technical effect of inserting the sealing cylinder 303 into an opening pipeline of a piece to be tested is achieved.

Specifically, a baffle (not shown) is fixedly connected to the pipe body B3041, and the outer diameter of the sealing cylinder 303 is larger than the inner diameter of the open pipe of the to-be-measured member. The purpose of this arrangement is to prevent the seal cartridge 303 from slipping off the tube body B3041 while increasing the sealability between the seal cartridge 303 and the test.

Specifically, the end of the sealing cylinder 303 is provided with a chamfer. The purpose of this arrangement is to facilitate the insertion of the entire seal cartridge 303 into the interior of the part to be tested.

Specifically, the air pipe 2 extends into the pipe body a302 and is fixedly connected with the pipe body B3041.

Specifically, the elastic member a3043 is any one of a spring, a compression spring, and an elastic steel plate.

In the embodiment of the utility model, the positioning and clamping mechanism can limit the to-be-detected piece in the box body 1, meanwhile, the motor 301 drives the pipe body A302 to rotate in the vertical direction through the transmission pair 305, the pipe body A302 drives the pushing component 304 to push the component 304 to insert the sealing cylinder 303 into an opening pipeline of the to-be-detected piece and gas is injected into the to-be-detected piece by using the gas pipe 2, at the moment, the gas concentration sensor detects the concentration of injected gas in the box body 1, and related technicians realize the technical effect of detecting the tightness of the to-be-detected piece by comparing the concentration of injected gas in the box body 1 before and after the gas is injected into the to-be-detected piece.

Referring to fig. 1, 2 and 4, as an embodiment of the present utility model, the positioning and clamping mechanism includes a linear moving member 401, a connecting disc 402, a V-shaped plate 403, and a rod (not shown in the drawings), wherein the connecting disc 402 is fixedly connected with the linear moving member 401, the linear moving member 401 is fixedly connected with the case 1, the rod is slidably matched with the V-shaped plate 403, the rod is hinged with the connecting disc 402, and the V-shaped plate 403 is rotatably connected with the case 1, and further includes:

the pressure relieving component 404 is connected with the V-shaped plate 403 and is used for carrying out flexible pressure relieving treatment on the piece to be tested;

the pressure relief assembly 404 includes an arc plate 4041, a slider 4042, an elastic member B4043, and a connecting rod 4044, where the connecting rod 4044 is hinged to the arc plate 4041 and the slider 4042, the two sliders 4042 are slidably matched with the V-shaped plate 403, and the elastic member B4043 is disposed in the V-shaped plate 403 and fixedly connected to the V-shaped plate 403 and the slider 4042.

Specifically, the linear motion member 401 is any one of a cylinder, an electric telescopic rod, and a hydraulic cylinder.

Specifically, the elastic member B4043 is any one of a spring, a compression spring, and an elastic steel plate.

In the embodiment of the utility model, the linear moving member 401 pushes the connecting disc 402 to perform linear movement in the vertical direction in the box body 1, the connecting disc 402 pushes the rod body to drive the V-shaped plates 403 to rotate in the horizontal direction relative to the box body 1, the plurality of V-shaped plates 403 push the arc plates 4041 matched with the V-shaped plates to abut against the member to be tested, the V-shaped plates 403 continuously push the arc plates 4041 to abut against the member to be tested, and the arc plates 4041 push the two sliding blocks 4042 to perform linear movement in opposite movement directions along the V-shaped plates 403 through the connecting rod 4044, so that the technical effect of flexible slow-pressing positioning clamping of the member to be tested is realized.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a tightness detection device, includes box and trachea, its characterized in that still includes:

2. The tightness detection device according to claim 1, wherein the positioning and clamping mechanism comprises a linear motion member, a connecting disc, a V-shaped plate and a rod body, the connecting disc is fixedly connected with the linear motion member, the linear motion member is fixedly connected with the box body, the rod body is in sliding fit with the V-shaped plate, the rod body is hinged with the connecting disc, and the V-shaped plate is rotatably connected with the box body, and the tightness detection device further comprises:

3. The tightness detection device according to claim 1, wherein the pushing assembly comprises a pipe body B, a limiting block and an elastic piece a, the pipe body B is in sliding fit with the limiting block, the limiting block is arranged in the box body and is fixedly connected with the box body, the pipe body B is in threaded connection with the pipe body a, the pipe body B is fixedly connected with the air pipe, the elastic piece a is positioned in the pipe body a and is fixedly connected with the pipe body a and the pipe body B, and the sealing cylinder is sleeved on the pipe body B.

4. The tightness detection device according to claim 2, wherein the pressure relief assembly comprises an arc plate, a sliding block, an elastic piece B and a connecting rod, the connecting rod is hinged with the arc plate and the sliding block, the two sliding blocks are in sliding fit with the V-shaped plate, and the elastic piece B is arranged in the V-shaped plate and fixedly connected with the V-shaped plate and the sliding block.

5. The tightness detection device according to claim 3, wherein a baffle is fixedly connected to the pipe body B, and the outer diameter of the sealing cylinder is larger than the inner diameter of the opening pipe of the piece to be detected.

6. The leak tightness detection apparatus as recited in any of claims 1-5, wherein the air tube extends into the tube body a and is fixedly connected to the tube body B.