Air tightness detection device for civil air defense engineering

Abstract

The utility model relates to the technical field of civil air defense engineering, and discloses an air tightness detection device for civil air defense engineering, which comprises a bottom plate, the right side of the top of the bottom plate is fixedly connected with a supporting block, the top of the supporting block is fixedly connected with a motor I, and the output end of the motor I is fixedly connected with a pinion. The outer wall of the small gear is in meshed connection with an insection strip, the left side of the insection strip is fixedly connected with a supporting shell, the left side of the top of the bottom plate is fixedly connected with a supporting frame, the right side of the supporting frame is slidably connected with the left side of the supporting shell, and the right side of the top of the supporting shell is fixedly connected with a second motor. According to the utility model, the motor I drives the pinion to rotate, so that the support shell moves up and down, after the support shell moves to a proper height, the threaded rod rotates to enable the T-shaped frame to move, the detection function is realized, the support shell can be quickly adjusted to adapt to detection objects at different heights and positions, and the detection range is widened.

Description

Technical Field

[0001] This utility model relates to the field of civil defense engineering technology, and in particular to an airtightness testing device for civil defense engineering. Background Technology

[0002] Civil defense engineering, also known as civil air defense engineering or civil defense works, refers to underground protective structures built independently to ensure the shelter of personnel and materials, civil air defense command, and medical rescue during wartime, as well as basements built in conjunction with above-ground buildings for air defense during wartime. Their function is to provide safe refuge for personnel and equipment in wartime and in emergency situations involving sudden nuclear, biological, and chemical threats, effectively resisting harmful gases and pollutants from the outside world and protecting people's lives and property. The sealing performance of civil defense engineering is closely related to its protective capability. Civil defense doors and passageways are key parts of civil defense engineering, serving not only as vital passageways for personnel and equipment during wartime but also as barriers to the intrusion of harmful nuclear, chemical, and biological gases. If the sealing of civil defense engineering is insufficient, harmful gases from the outside will penetrate into the interior during emergencies, threatening the lives of personnel and weakening the protective effectiveness of the engineering. Therefore, it is necessary to use sealing testing equipment to inspect the sealing performance of civil defense engineering to ensure that it meets protection standards.

[0003] In the civil defense engineering construction market, construction companies and equipment suppliers face fierce market competition. To enhance their competitiveness, companies must ensure the reliability of the ventilation systems they construct and supply. As a key link in ensuring the quality of ventilation systems, the airtightness testing of ventilation ducts is highly valued by companies. By introducing advanced testing technologies and equipment, companies can not only guarantee project quality and meet customer needs, but also improve production efficiency, reduce costs, and gain an advantage in market competition. However, when faced with objects with large height differences, testing equipment often has insufficient lifting capacity, making it difficult to test targets at high and low heights. Utility Model Content

[0004] To overcome the above shortcomings, this utility model provides an airtightness testing device for civil defense engineering, which aims to improve the problem that existing testing equipment often has insufficient lifting capacity when facing targets with large height differences, making it difficult to test targets at high and low altitudes.

[0005] To achieve the above objectives, this utility model adopts the following technical solution: an airtightness testing device for civil defense engineering, comprising a base plate, a support block fixedly connected to the top right side of the base plate, a motor I fixedly connected to the top of the support block, a pinion fixedly connected to the output end of the motor I, a toothed strip meshing with the outer wall of the pinion, a support shell fixedly connected to the left side of the toothed strip, a support frame fixedly connected to the top left side of the base plate, a slidable connection between the right side of the support frame and the left side of the support shell, a motor II fixedly connected to the top right side of the support shell, a bevel gear I fixedly connected to the output end of the motor II, a bevel gear II meshing with the outer wall of the bevel gear I, a threaded rod fixedly connected to the middle of the bevel gear II, a support plate I rotatably connected to both the left and right ends of the threaded rod, a support plate I fixedly connected to the bottom of the support plate I and the top of the support shell, a T-shaped frame threadedly connected to the middle of the support plate I, and a testing mechanism provided on the top of the support shell, the testing mechanism being used to achieve the testing effect.

[0006] As a further description of the above technical solution:

[0007] The testing mechanism includes a testing shell, the bottom of which is fixedly connected to the top of a T-shaped frame. A punch is fixedly connected to the top of the testing shell. A connecting pipe is fixedly connected to the inner side of the testing shell. A sealing connector is fixedly connected to the left side of the connecting pipe. An exhaust valve is fixedly connected to the top right side of the connecting pipe. A balloon is connected to the right end of the connecting pipe.

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

[0009] A nameplate is fixedly connected to the left side of the support frame, and an identification plate is fixedly connected to the rear right side of the support shell.

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

[0011] The base plate is fixedly connected to the front and rear sides of the base plate, and the adjacent support plates are slidably connected to the front and rear sides of the support shell.

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

[0013] Multiple breathing lights are fixedly connected to the top front side of the support plate 2, and all of the breathing lights adopt a symmetrical design.

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

[0015] A controller is fixedly connected to the front side of the second support plate, and the controller is electrically connected to the first motor and the second motor respectively.

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

[0017] A display screen is fixedly connected to the front side of the detection housing, and a button is fixedly connected to the front side of the stamping device.

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

[0019] A sealing ring is fixedly connected to the outer wall of the sealing connector, and a protective pad is fixedly connected to the top center of the base plate.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the rotation of the small gear driven by the motor causes the meshing toothed strip to rotate, thereby realizing the up and down movement of the support shell. After moving to a suitable height, the rotation of the threaded rod allows the T-shaped frame to move on the top of the support shell to realize the detection function. This allows the support shell to be quickly adjusted to adapt to the detection objects at different heights and positions, avoiding the detection blind spots caused by the limited detection position and expanding the detection range.

[0022] 2. In this utility model, a sealing connector is used to achieve a sealed engagement with the pipe being tested. The exhaust valve is closed to form a sealed space between the pipe and the connecting pipe. At this time, the pressurizer is used to pressurize the inside, causing the balloon to inflate. Then the pressurization is stopped. If the sealing effect of the pipe is not good, the balloon will gradually deflate after a period of time. If the sealing effect is good, the balloon will not change. After the test is completed, the exhaust valve is opened to release the internal pressure, avoiding the impact and damage to the testing equipment caused by the sudden change in pressure. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the support plate of the airtightness testing device for civil defense engineering proposed in this utility model;

[0024] Figure 2 This is a schematic diagram of the base plate of an airtightness testing device for civil defense engineering proposed in this utility model;

[0025] Figure 3 This is a schematic diagram of the support shell for an airtightness testing device for civil defense engineering proposed in this utility model;

[0026] Figure 4 This is a diagram illustrating the support frame of an airtightness testing device for civil defense engineering proposed in this utility model.

[0027] Figure 5 This is a schematic diagram of the connecting pipe of an airtightness testing device for civil defense engineering proposed in this utility model.

[0028] Legend:

[0029] 1. Base plate; 2. Testing mechanism; 201. Testing housing; 202. Stamping machine; 203. Connecting pipe; 204. Sealing connector; 205. Exhaust valve; 206. Balloon; 3. Support block; 4. Motor 1; 5. Pinion gear; 6. Toothed strip; 7. Support shell; 8. Support frame; 9. Motor 2; 10. Bevel gear 1; 11. Bevel gear 2; 12. Threaded rod; 13. Support plate 1; 14. T-shaped frame; 15. Nameplate; 16. Identification plate; 17. Support plate 2; 18. Breathing light; 19. Controller; 20. Display screen; 21. Button; 22. Sealing ring; 23. Protective pad. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0031] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 An embodiment of this utility model provides an airtightness testing device for civil defense engineering, comprising a base plate 1, a support block 3 fixedly connected to the top right side of the base plate 1, a motor 4 fixedly connected to the top of the support block 3, a pinion 5 fixedly connected to the output end of the motor 4, a toothed strip 6 meshing with the outer wall of the pinion 5, a support shell 7 fixedly connected to the left side of the toothed strip 6, a support frame 8 fixedly connected to the top left side of the base plate 1, the right side of the support frame 8 slidably connected to the left side of the support shell 7, a second motor 9 fixedly connected to the top right side of the support shell 7, a bevel gear 10 fixedly connected to the output end of the second motor 9, a bevel gear 11 meshing with the outer wall of the bevel gear 10, a threaded rod 12 fixedly connected to the middle of the bevel gear 11, a support plate 13 rotatably connected to both the left and right ends of the threaded rod 12, a support plate 13 fixedly connected to the bottom of the support plate 13 and the top of the support shell 7, a T-shaped frame 14 threadedly connected to the middle of the support plate 13, and a testing mechanism 2 provided on the top of the support shell 7, the testing mechanism 2 being used to achieve the testing effect;

[0032] Specifically, motor 4 is installed on the top of support block 3, providing stable power output. The outer wall of pinion 5 meshes with toothed strip 6, making the device run more smoothly and with lower noise. Support shell 7 not only provides additional support points for the device but also protects the internal precision components from external environmental influences. Support frame 8 is slidably connected to the left side of support shell 7, allowing the device to adjust its position during testing to adapt to different civil defense engineering structures. Motor 9 works in conjunction with motor 4 to drive the operation of the testing device. The outer wall of bevel gear 10 meshes with bevel gear 11, effectively converting power and improving efficiency. Both ends of threaded rod 12 are rotatably connected to support plate 13, enabling the device to be positioned more accurately during testing. The bottom of support plate 13 is fixedly connected to the top of support shell 7, ensuring the stability of the device during operation.

[0033] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 5 The testing mechanism 2 includes a testing housing 201. The bottom of the testing housing 201 is fixedly connected to the top of the T-shaped frame 14. A punch 202 is fixedly connected to the top of the testing housing 201. A connecting pipe 203 is fixedly connected to the inner side of the testing housing 201. A sealing connector 204 is fixedly connected to the left side of the connecting pipe 203. An exhaust valve 205 is fixedly connected to the top right side of the connecting pipe 203. A balloon 206 is connected to the right end of the connecting pipe 203.

[0034] Specifically, the press 202 can apply precise pressure to the temporal region to ensure the accuracy of the test results, the connecting pipe 203 is used to guide the gas flow, the sealing connector 204 ensures that the connection remains tight in various working environments to prevent gas leakage, the exhaust valve 205 is a safety device that can release excess pressure after the test process to protect the test mechanism 2 from damage, and the balloon 206 can visually display the gas flow by the degree of its expansion.

[0035] Please see the appendix Figure 1 Appendix Figure 2 and attached Figure 3 Support plates 17 are fixedly connected to the front and rear sides of the base plate 1. The adjacent support plates 17 are slidably connected to the front and rear sides of the support shell 7. A sealing ring 22 is fixedly connected to the outer wall of the sealing connector 204. A protective pad 23 is fixedly connected to the top center of the base plate 1. Multiple breathing lights 18 are fixedly connected to the top front side of the front support plate 17. The multiple breathing lights 18 are all designed symmetrically.

[0036] Specifically, the support plate 217 provides certain support for the sliding of the support shell 7, and a sealing ring 22 is fixedly installed on the outer wall of the sealing connector 204. The function of the sealing ring 22 is to enhance the sealing of the connection and prevent gas leakage. The protective pad 23 provides additional protection to prevent the support shell 7 from being damaged during the descent.

[0037] Please see the appendix Figure 1 Appendix Figure 4 and attached Figure 5 A controller 19 is fixedly connected to the front side of the front support plate 2 17. The controller 19 is electrically connected to motor 1 4 and motor 2 9 respectively. A nameplate 15 is fixedly connected to the left side of the support frame 8. An identification plate 16 is fixedly connected to the rear right side of the support shell 7. A display screen 20 is fixedly connected to the front side of the detection shell 201. A button 21 is fixedly connected to the front side of the stamper 202.

[0038] Specifically, controller 19 is not only electrically connected to motor 4 to ensure efficient operation of the equipment, but also maintains the same connection with motor 9 to ensure coordinated operation of the entire system. Nameplate 15 is engraved with the equipment model, manufacturing date and manufacturer's logo to provide equipment information. Display screen 20 can display the operating status of the equipment in real time and provides an intuitive operating interface.

[0039] Working principle: Motor 4 drives the rotation of pinion 5, which in turn drives the rotation of the meshing toothed strip 6, thereby enabling the support shell 7 to move up and down. After moving to the appropriate height, the rotation of motor 9 drives the rotation of bevel gear 10, which in turn drives the rotation of bevel gear 11, which in turn drives the rotation of threaded rod 12, allowing T-shaped frame 14 to move on top of support shell 7 to achieve the detection function. This allows support shell 7 to be quickly adjusted to adapt to detection objects at different heights and positions. In civil defense projects, whether it is a ventilation duct at a high place or an equipment interface at a low place, the detection device can quickly reach the designated position, avoiding blind spots caused by limited detection positions and expanding the detection range.

[0040] The sealing connector 204 is used to seal and engage with the pipe being tested. The exhaust valve 205 is closed to create a sealed space between the pipe and the connecting pipe 203. At this time, the pressurizer 202 pressurizes the inside, causing the balloon 206 to inflate. Then the pressurization is stopped. If the pipe is not well sealed, the balloon 206 will gradually deflate after a period of time. If the sealing effect is good, the balloon 206 will not change. After the test is completed, the exhaust valve 205 is opened to release the internal pressure, avoiding the impact and damage to the testing equipment caused by the sudden pressure change.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. An airtightness testing device for civil defense engineering, comprising a base plate (1), characterized in that: A support block (3) is fixedly connected to the top right side of the base plate (1). A motor (4) is fixedly connected to the top of the support block (3). A pinion (5) is fixedly connected to the output end of the motor (4). A toothed strip (6) is meshed with the outer wall of the pinion (5). A support shell (7) is fixedly connected to the left side of the toothed strip (6). A support frame (8) is fixedly connected to the top left side of the base plate (1). The right side of the support frame (8) is slidably connected to the left side of the support shell (7). A motor (9) is fixedly connected to the top right side of the support shell (7). The output end of the second (9) is fixedly connected to a bevel gear one (10), and the outer wall of the bevel gear one (10) is meshed with a bevel gear two (11). The middle part of the bevel gear two (11) is fixedly connected to a threaded rod (12). The left and right ends of the threaded rod (12) are rotatably connected to a support plate one (13). The bottom of the support plate one (13) is fixedly connected to the top of the support shell (7). The middle part of the support plate one (13) is threadedly connected to a T-shaped frame (14). The top of the support shell (7) is provided with a detection mechanism (2). The detection mechanism (2) is used to achieve the detection effect.

2. The airtightness testing device for civil defense engineering according to claim 1, characterized in that: The detection mechanism (2) includes a detection housing (201), the bottom of which is fixedly connected to the top of a T-shaped frame (14), a punch (202) is fixedly connected to the top of the detection housing (201), a connecting pipe (203) is fixedly connected to the inner side of the detection housing (201), a sealing connector (204) is fixedly connected to the left side of the connecting pipe (203), an exhaust valve (205) is fixedly connected to the top right side of the connecting pipe (203), and a balloon (206) is connected to the right end of the connecting pipe (203).

3. The airtightness testing device for civil defense engineering according to claim 1, characterized in that: A nameplate (15) is fixedly connected to the left side of the support frame (8), and an identification plate (16) is fixedly connected to the rear right side of the support shell (7).

4. The airtightness testing device for civil defense engineering according to claim 1, characterized in that: The base plate (1) is fixedly connected to the front and rear sides of the base plate (1), and the adjacent support plates (17) are slidably connected to the front and rear sides of the support shell (7).

5. The airtightness testing device for civil defense engineering according to claim 4, characterized in that: Multiple breathing lights (18) are fixedly connected to the top front side of the support plate 2 (17) on the front side, and the multiple breathing lights (18) are all designed symmetrically.

6. The airtightness testing device for civil defense engineering according to claim 4, characterized in that: A controller (19) is fixedly connected to the front side of the second support plate (17) on the front side. The controller (19) is electrically connected to the first motor (4) and the second motor (9) respectively.

7. The airtightness testing device for civil defense engineering according to claim 2, characterized in that: The front side of the detection housing (201) is fixedly connected to a display screen (20), and the front side of the stamper (202) is fixedly connected to a button (21).

8. The airtightness testing device for civil defense engineering according to claim 2, characterized in that: A sealing ring (22) is fixedly connected to the outer wall of the sealing connector (204), and a protective pad (23) is fixedly connected to the top center of the base plate (1).

Images