Air tightness detection equipment for shell

Abstract

The utility model relates to the technical field of air tightness detection, and discloses air tightness detection equipment for a shell, which comprises a workbench, square boxes are fixedly connected to the left side and the right side of the inner wall of the bottom of the workbench, a first cavity is formed in each square box, and a fixing block is fixedly connected to the inner wall of the bottom of each first cavity. A motor is fixedly connected to the top end of the fixing block, a rotating shaft is fixedly connected to the driving end of the motor, a circular plate is fixedly connected to the exterior of the rotating shaft, protruding blocks are fixedly connected to the top end of the circular plate, and two rotating rods are rotationally connected to the close sides of the two protruding blocks correspondingly; the close sides of the two rotating rods are rotationally connected with two connecting rods correspondingly, and the bottom ends of the connecting rods are fixedly connected with sliding blocks. According to the utility model, the object to be detected is effectively clamped, and the stable position and posture of the object in the test process can be ensured, so that the accuracy and reliability of the test result are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air tightness detection, in particular to air tightness detection equipment for shells. Background Art

[0002] In some industries, such as aerospace, nuclear energy, chemical industry, etc., the sealing performance of the housing is directly related to the safety of the product and the protection of the environment. Therefore, airtightness testing equipment is widely used to ensure that the product meets relevant safety standards and regulations.

[0003] After searching, the Chinese patent document announcement number: CN219532417U discloses an airtightness detection device. In view of the existing general method of placing a single camera in a sealed tank for inflating, judging whether the pressure value has changed, so as to achieve the purpose of airtightness detection, but the single detection speed is slow, resulting in a long detection process. The following scheme is proposed, which includes a frame, the top of the frame is fixedly connected to a workbench, the outer wall of the workbench is fixedly connected to a U-shaped plate, the top of the U-shaped plate is fixedly connected to the same chassis, and the interior of the chassis is fixedly connected with two first electric push rods. The utility model forms four separate areas of two sealed tanks by arranging a sealed tank, a second electric push rod, a first circular plate, a support rod, a second circular plate, a sealing ring and an air pipe. During the airtightness detection, multiple cameras can be detected at the same time, thereby improving the detection speed and reducing the time.

[0004] The beneficial effects of the above patent specification mentions that "by setting a sealing can, a second electric push rod, a first circular plate, a support rod, a second circular plate, a sealing ring and an air pipe, the two sealing cans are formed into four separate areas. During the airtightness test, multiple cameras can be tested at the same time, which improves the detection speed and reduces the time. The first electric push rod is operated to make the sealing ring and the sealing cover seal the top of the sealing can. The air pump is operated to fill a certain amount of gas into the sealing can through the air pipe to detect the airtightness of the camera." Although the above patent can solve the problem of increasing the detection speed, in some existing technologies, the object to be detected cannot be effectively clamped or fixed in the detection equipment. The object to be detected may move or loosen during the test, resulting in inaccurate airtightness test. Therefore, in view of the above shortcomings, an airtightness detection device for the outer shell is proposed. Utility Model Content

[0005] In order to make up for the above shortcomings, the utility model provides an airtightness detection device for a housing, aiming to improve the problem in the prior art that the object to be detected may move or become loose during the detection process, resulting in inaccurate test results.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The air tightness detection equipment for the shell comprises a workbench, the left and right sides of the bottom inner wall of the workbench are fixedly connected with a square box, the interior of the square box is provided with a cavity one, the bottom inner wall of the cavity one is fixedly connected with a fixed block, the top of the fixed block is fixedly connected with a motor, the driving end of the motor is fixedly connected with a rotating shaft, the outside of the rotating shaft is fixedly connected with a circular plate, the top of the circular plate is fixedly connected with a protrusion, the adjacent sides of the two protrusions are rotatably connected with two rotating rods, the adjacent sides of the two rotating rods are rotatably connected with two connecting rods, the bottom ends of the connecting rods are fixedly connected with sliding blocks, the adjacent sides of the two sliding blocks are fixedly connected with two sliding rods, the adjacent sides of the two sliding rods are fixedly connected with connecting blocks, the adjacent sides of the two connecting blocks are fixedly connected with two connecting plates, the adjacent sides of the two connecting plates are rotatably connected with two V-shaped plates, and the bottom inner wall of the workbench is fixedly connected with a mounting assembly;

[0008] As a further description of the above technical solution:

[0009] The mounting assembly comprises a test mold, the bottom end of the test mold is fixedly connected with a long strip, the workbench is provided with a second cavity inside, the inner wall of the bottom of the second cavity is fixedly connected with a second spring on both the front and rear sides, the top of the second spring on the rear side is fixedly connected with a connecting rod one, the top of the second spring on the front side is fixedly connected with a second connecting rod, the inside of the second cavity is fixedly connected with a fixing rod, the outside of the fixing rod is rotatably connected with a clamping block, the inner wall of the second cavity is slidably connected with a pressing rod, the front and rear sides of the V-shaped plate are fixedly connected with a rubber sleeve, and a workpiece to be tested is arranged inside the workbench;

[0010] As a further description of the above technical solution:

[0011] The outer side of the slide bar is slidably connected with a limiting block, the far sides of the two V-shaped plates are respectively fixedly connected with a plurality of springs, the front end of the workbench is fixedly connected with a display screen, the bottom end of the workbench is fixedly connected with a bottom box, the left and right sides of the bottom inner wall of the workbench are fixedly connected with positioning rods, the outer sides of the two positioning rods are slidably connected with a sliding plate, the bottom end of the sliding plate is fixedly connected with a detection unit, and the inside of the workbench is fixedly connected with a plurality of support rods;

[0012] As a further description of the above technical solution:

[0013] The bottom end of the sliding block is slidably connected to the inner wall of the cavity 1;

[0014] As a further description of the above technical solution:

[0015] The outside of the long strip is slidably connected to the inner wall of the second cavity, and the bottom end of the long strip is in contact with the top end of the first connecting rod;

[0016] As a further description of the above technical solution:

[0017] The rear part of the card block is engaged with the interior of the long strip, the front bottom end of the card block is in contact with the top end of the second connecting rod, and the front top end of the card block is in contact with the bottom end of the pressing rod;

[0018] As a further description of the above technical solution:

[0019] The outsides of the plurality of rubber sleeves are in contact with the outside of the workpiece to be tested, the bottom end of the test mold is in contact with the bottom inner wall of the workbench, and the top end of the test mold is in contact with the bottom end of the workpiece to be tested;

[0020] As a further description of the above technical solution:

[0021] The bottom end of the limiting block is fixedly connected to the inner wall of the cavity one, and the far sides of the plurality of springs one are respectively fixedly connected to the near sides of the two connecting plates.

[0022] The utility model has the following beneficial effects:

[0023] 1. In the utility model, the slide bar can move left and right through the drive of the motor and the transmission of the rotating shaft, and the power conversion of the circular plate and the rotating rod, and then through the action of the V-shaped plate and the rubber sleeve, the object to be tested can be effectively clamped, which can ensure that the object maintains a stable position and posture during the test. This helps to ensure that the test conditions are stable during the test, thereby improving the accuracy and reliability of the test results.

[0024] 2. In the utility model, through the action of the card block and the spring 2, in cooperation with the action of the card slot and the pressing rod provided on the long strip block, the test mold can be quickly replaced. By quickly replacing the test mold, the equipment can adapt to shells of different sizes and shapes, thereby meeting the testing requirements of various products, thereby improving the versatility and applicability of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 A three-dimensional diagram of the air tightness detection device for the housing proposed by the utility model;

[0026] Figure 2 This is a schematic structural diagram of a square box of the housing air tightness detection device proposed by the utility model;

[0027] Figure 3 This is a schematic structural diagram of cavity 2 of the air tightness detection device for a housing proposed by the utility model.

[0028] Legend:

[0029] 1. Workbench; 2. Square box; 3. Cavity 1; 4. Fixed block; 5. Motor; 6. Rotating shaft; 7. Round plate; 8. Bump; 9. Rotating rod; 10. Connecting rod; 11. Sliding block; 12. Sliding rod; 13. Connecting block; 14. Connecting plate; 15. V-shaped plate; 16. Rubber sleeve; 17. Limiting block; 18. Spring 1; 19. Workpiece to be tested; 20. Test mold; 21. Long strip; 22. Cavity 2; 23. Spring 2; 24. Connecting rod 1; 25. Connecting rod 2; 26. Fixed rod; 27. Block; 28. Pressing rod; 29. ​​Display screen; 30. Bottom box; 31. Positioning rod; 32. Sliding plate; 33. Detection unit; 34. Support rod. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] Reference Figure 1 and Figure 2 An embodiment of the utility model is provided: an airtightness detection device for a shell, comprising a workbench 1, which is the main frame of the device, used to support and accommodate other components, the left and right sides of the bottom inner wall of the workbench 1 are fixedly connected with a square box 2 for installing and protecting other mechanical components, a cavity 3 is opened inside the square box 2, the bottom inner wall of the cavity 3 is fixedly connected with a fixing block 4, the top of the fixing block 4 is fixedly connected with a motor 5, the fixing block 4 is used to stabilize the position of the motor 5, the motor 5 is used to provide power, the driving end of the motor 5 is fixedly connected with a rotating shaft 6, and the rotational motion of the motor 5 is transmitted to other components, the outside of the rotating shaft 6 is fixedly connected with a circular plate 7 for rotating and transmitting power, the top of the circular plate 7 is fixedly connected with a convex block 8 for transmitting power, and the two convex blocks 8 are close to each other. The sides are rotatably connected to two rotating rods 9 for transmitting motion to convert rotation into sliding. The adjacent sides of the two rotating rods 9 are rotatably connected to two connecting rods 10, and the bottom ends of the connecting rods 10 are fixedly connected to sliding blocks 11. The adjacent sides of the two sliding blocks 11 are respectively fixedly connected to two sliding rods 12, and the adjacent sides of the two sliding rods 12 are respectively fixedly connected to connecting blocks 13. The adjacent sides of the two connecting blocks 13 are respectively fixedly connected to two connecting plates 14, and the adjacent sides of the two connecting plates 14 are respectively rotatably connected to two V-shaped plates 15, which are shaped to facilitate guiding and positioning. The front and rear sides of the V-shaped plates 15 are fixedly connected to rubber sleeves 16 for buffering and increasing friction, so that the clamping function of the V-shaped plates 15 is stronger. The bottom inner wall of the workbench 1 is fixedly connected to a mounting assembly;

[0032] The outer sliding connection of the slide bar 12 is provided with a limiting block 17 for limiting and controlling the movement range of the slide bar 12; the far sides of the two V-shaped plates 15 are respectively fixedly connected with a plurality of springs 18 for mitigating impact; the front end of the workbench 1 is fixedly connected with a display screen 29 for displaying the test progress and parameters; the bottom end of the workbench 1 is fixedly connected with a bottom box 30; the left and right sides of the bottom inner wall of the workbench 1 are fixedly connected with positioning rods 31; the outer sides of the two positioning rods 31 are slidingly connected with sliding plates 32; the bottom ends of the sliding plates 32 are fixedly connected with a detection part 33 for detecting the objects to be detected; the inside of the workbench 1 is fixedly connected with a plurality of supporting rods 34 for enhancing the stability of the equipment; the bottom end of the sliding block 11 is slidingly connected to the inner wall of the cavity 3; the bottom end of the limiting block 17 is fixedly connected to the inner wall of the cavity 3; the far sides of the plurality of springs 18 are respectively fixedly connected to the close sides of the two connecting plates 14.

[0033] Reference Figure 1 and Figure 3 , a workpiece 19 to be tested is arranged inside the workbench 1, and the parts or products to be tested are arranged. The installation assembly includes a test mold 20, which has a shape and size matching the workpiece 19 to be tested. A long strip block 21 is fixedly connected to the bottom end of the test mold 20. A cavity 22 is opened inside the workbench 1. The front and rear sides of the bottom inner wall of the cavity 22 are fixedly connected with springs 23 for providing elastic support and buffering. The top of the rear spring 23 is fixedly connected with a connecting rod 1 24, and the top of the front spring 23 is fixedly connected with a connecting rod 25. The interior of the cavity 22 is fixedly connected with a fixing rod 26, and the outside of the fixing rod 26 is rotatably connected with a clamping block 27 for realizing the clamping with the long strip block 21 to install and fix the test mold 20. The inner wall of the cavity 22 is slidably connected with a pressing rod 28 for applying pressure to the front of the clamping block 27 to rotate it counterclockwise, thereby canceling the clamping of the long strip block 21, thereby realizing disassembly;

[0034] The outside of the long strip block 21 is slidably connected to the inner wall of the cavity 22, the bottom end of the long strip block 21 contacts the top end of the connecting rod 1 24, the rear of the clamping block 27 is engaged with the inside of the long strip block 21, the front bottom end of the clamping block 27 contacts the top end of the connecting rod 25, the front top end of the clamping block 27 contacts the bottom end of the pressing rod 28, the outside of the multiple rubber sleeves 16 contacts the outside of the workpiece 19 to be tested, the bottom end of the test mold 20 contacts the bottom inner wall of the workbench 1, and the top of the test mold 20 contacts the bottom end of the workpiece 19 to be tested.

[0035] Working principle: When the staff needs to conduct air tightness test on the workpiece 19 to be tested, the workpiece 19 to be tested is placed on the test mold 20, and the motor 5 is turned on. The driving end of the motor 5 drives the rotating shaft 6 to rotate, and then drives the circular plate 7 and the protrusion 8 to rotate, so that the rotating rod 9 rotates and the transmission of the connecting rod 10 realizes the left and right sliding of the sliding block 11, and the left and right sliding of the sliding rod 12. Through the sliding of the sliding rod 12, the left and right movement of the connecting block 13 and the connecting plate 14 is realized, and then the V-shaped plate 15 and the rubber sleeve 16 are moved and clamped to the workpiece 19 to be tested. At this time, the spring 18 is compressed by pressure, which reduces the impact of the fixture on the workpiece 19 to be tested, and avoids damage to the workpiece 19 to be tested, thereby achieving effective clamping of the object to be tested, and ensuring that the object maintains a stable position and posture during the test. This helps to ensure the stability of the test conditions during the test, thereby improving the accuracy and reliability of the test results;

[0036] When the staff needs to disassemble the test mold 20, by pressing the pressing rod 28, the fixing rod 26 is rotated counterclockwise, so that the long block 21 loses the clamping effect of the clamping block 27 on it, so that the test mold 20 can be quickly disassembled. When the test mold 20 needs to be installed, the long block 21 is pressed downward through the cavity 22. At this time, the clamping block 27 is pressed and rotates clockwise, and the rear spring 23 is compressed by pressure until the long block 21 completely enters the cavity 22. At this time, the clamping block 27 loses pressure and is clamped with the clamping groove set on the long block 21, so that the installation and fixation of the test mold 20 is achieved. By quickly replacing the detection mold, the equipment can adapt to shells of different sizes and shapes, thereby meeting the testing needs of various products. This flexibility allows the same equipment to be used to test multiple types of shells or containers, improving the versatility and applicability of the equipment.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An airtightness testing device for a housing, comprising a workbench (1), characterized in that: A square box (2) is fixedly connected to the left and right sides of the bottom inner wall of the workbench (1), a cavity (3) is provided inside the square box (2), a fixed block (4) is fixedly connected to the bottom inner wall of the cavity (3), a motor (5) is fixedly connected to the top of the fixed block (4), a rotating shaft (6) is fixedly connected to the driving end of the motor (5), a circular plate (7) is fixedly connected to the outside of the rotating shaft (6), a convex block (8) is fixedly connected to the top of the circular plate (7), two rotating rods (9) are rotatably connected to the adjacent sides of the two convex blocks (8), and the two rotating rods (9) are rotatably connected to the two rotating rods ( 9), two connecting rods (10) are rotatably connected to the adjacent sides of the workbench (1), a sliding block (11) is fixedly connected to the bottom end of the connecting rod (10), two sliding rods (12) are fixedly connected to the adjacent sides of the two sliding blocks (11), a connecting block (13) is fixedly connected to the adjacent sides of the two sliding rods (12), two connecting plates (14) are fixedly connected to the adjacent sides of the two connecting blocks (13), two V-shaped plates (15) are rotatably connected to the adjacent sides of the two connecting plates (14), and a mounting assembly is fixedly connected to the bottom inner wall of the workbench (1).

2. The air tightness detection device for housing according to claim 1, characterized in that: The mounting assembly comprises a test mold (20), the bottom end of which is fixedly connected to a long strip (21), a second cavity (22) is provided inside the workbench (1), the front and rear sides of the bottom inner wall of the second cavity (22) are fixedly connected to the second spring (23), the top end of the second spring (23) on the rear side is fixedly connected to the first connecting rod (24), the top end of the second spring (23) on the front side is fixedly connected to the second connecting rod (25), the inside of the second cavity (22) is fixedly connected to a fixing rod (26), the outside of the fixing rod (26) is rotatably connected to a clamping block (27), the inner wall of the second cavity (22) is slidably connected to a pressing rod (28), the front and rear sides of the V-shaped plate (15) are fixedly connected to the rubber sleeve (16), and a workpiece (19) to be tested is arranged inside the workbench (1).

3. The air tightness detection device for housing according to claim 1, characterized in that: The sliding rod (12) is externally slidably connected to a limiting block (17); the two V-shaped plates (15) are respectively fixedly connected to a plurality of springs (18) on opposite sides; the front end of the workbench (1) is fixedly connected to a display screen (29); the bottom end of the workbench (1) is fixedly connected to a bottom box (30); the left and right sides of the bottom inner wall of the workbench (1) are fixedly connected to positioning rods (31); the two positioning rods (31) are externally slidably connected to a sliding plate (32); the bottom end of the sliding plate (32) is fixedly connected to a detection unit (33); the inside of the workbench (1) is fixedly connected to a plurality of support rods (34).

4. The air tightness detection device for housing according to claim 1, characterized in that: The bottom end of the sliding block (11) is slidably connected to the inner wall of the cavity one (3).

5. The air tightness detection device for housing according to claim 2, characterized in that: The outside of the long strip (21) is slidably connected to the inner wall of the second cavity (22), and the bottom end of the long strip (21) is in contact with the top end of the first connecting rod (24).

6. The air tightness detection device for housing according to claim 2, characterized in that: The rear portion of the clamping block (27) is engaged with the interior of the long strip block (21), the front bottom end of the clamping block (27) is in contact with the top end of the second connecting rod (25), and the front top end of the clamping block (27) is in contact with the bottom end of the pressing rod (28).

7. The air tightness detection device for housing according to claim 2, characterized in that: The exteriors of the plurality of rubber sleeves (16) are in contact with the exterior of the workpiece (19) to be tested, the bottom end of the test mold (20) is in contact with the bottom inner wall of the workbench (1), and the top end of the test mold (20) is in contact with the bottom end of the workpiece (19) to be tested.

8. The air tightness detection device for housing according to claim 3, characterized in that: The bottom end of the limiting block (17) is fixedly connected to the inner wall of the cavity one (3), and the far sides of the plurality of springs one (18) are respectively fixedly connected to the near sides of the two connecting plates (14).

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