Security camera airtightness test equipment and method

Abstract

The present invention discloses a security camera airtightness test device and method, belonging to the field of security camera airtightness test. A security camera airtightness test device includes a test bench and a housing, and also includes: a controller fixedly connected to the top of the test bench; a cylinder fixedly connected to the top of the test bench, the output end of the cylinder fixedly connected to a sealing plate, an air pump installed on the top of the sealing plate, and an air intake pipe fixedly connected to the top of the air pump; a drive motor installed at the bottom of the test bench through a motor seat. The present invention can clean the outer surface of the housing to prevent dust and other impurities from existing on the outer surface of the housing, causing dust and other impurities to adhere to the leakage point of the housing, resulting in a false seal of the housing, thereby ensuring the quality and accuracy of the test, and also realizing the marking of the leakage point of the housing, so that personnel can directly observe the part of the housing where the leakage exists, thereby reducing the burden of personnel finding the leakage point and facilitating personnel to repair the housing.

Description

Technical Field

[0001] The present invention relates to the technical field of airtightness testing of security cameras, and in particular to an airtightness testing device and method for security cameras. Background Art

[0002] The airtightness test for security cameras is performed using a security camera airtightness tester. The principle is as follows: A security camera placed in a sealed chamber is inflated through a pressure valve, with the air pressure set according to the volume of the sealed chamber. When the airtightness tester reaches the specified value, the air source is cut off to ensure a constant pressure within the sealed chamber for a period of time. After the pressure stabilizes, the test begins, with the pressure sensor of the security camera airtightness tester recording the current pressure in real time. After a period of testing, the real-time pressure value within the sealed chamber is recorded according to the standard test time for the sample. The pressure difference between the two pressure values ​​is compared, and the security camera airtightness tester's intelligent leak detection system analyzes and calculates to determine if the product is leak-proof. This tester is used to verify that the sample's waterproof and sealing properties meet acceptable standards.

[0003] At present, when performing an airtightness test on a security camera, the airtightness of the security camera shell can only be tested by using the principle of air pressure. It is impossible to effectively mark the leaking parts of the security camera shell. As a result, when personnel repair the security camera shell, they need to find the leaking points of the security camera shell before they can repair the security camera shell, which increases the labor burden of the personnel. Based on this, a security camera airtightness testing device and method are proposed. Summary of the Invention

[0004] The purpose of the present invention is to solve the problem in the prior art that it is impossible to effectively mark the leaking parts of the security camera housing, and to propose a security camera airtightness testing device and method.

[0005] In order to achieve the above object, the present invention adopts the following technical solutions:

[0006] A security camera airtightness test device includes a test bench and a housing, and further includes:

[0007] A controller fixedly connected to the top of the test bench; a cylinder fixedly connected to the top of the test bench, the output end of the cylinder fixedly connected to a sealing plate, the top of the sealing plate is installed with an air pump, the top of the air pump is fixedly connected to an air intake pipe; a drive motor installed at the bottom of the test bench through a motor base, the output end of the drive motor fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a turntable, and the top of the turntable is installed with a fluorescent lamp and a pressure sensor.

[0008] In order to transmit the power generated by the driving motor so that the reciprocating screw drives the cleaning ring and the piston plate to slide up and down, preferably, it also includes: a driving wheel fixedly connected to the outer wall of the rotating shaft, the outer wall of the driving wheel is fitted with a belt, the inner wall of the belt is fitted with a driven wheel, the inner wall of the driven wheel is fixedly connected to the reciprocating screw, and the top of the reciprocating screw is rotatably connected to a fixed frame.

[0009] In order to enable the cleaning ring to drive the air blowing pipe to slide up and down along the outer surface of the shell, clean the outer surface of the shell, and mark the leakage location of the shell when there is a leakage point, preferably, it also includes: a cleaning ring connected to the outer wall of the reciprocating screw by a thread, the inner ring side wall of the cleaning ring is fixedly connected to the air blowing pipe, the inner side wall of the air blowing pipe is installed with a photosensitive switch, the top of the cleaning ring is fixedly connected to a liquid storage ring, and the inner ring side wall of the liquid storage ring is fixedly connected to a drain pipe.

[0010] In order to ensure that the air blowing pipe can always blow air into the outer shell and clean and mark the outer shell, it further includes: a reciprocating plate connected to the outer wall of the reciprocating screw by a thread, the bottom of the reciprocating plate is fixedly connected to a piston plate, the outer wall of the piston plate is slidably connected to a piston cylinder, the side wall of the piston cylinder is provided with an air inlet, and the side of the piston cylinder away from the air inlet is fixedly connected to an exhaust pipe.

[0011] Furthermore, the rotating shaft passes through the middle of the test bench and is rotatably connected to the test bench, and the outer side wall and the bottom of the turntable are rotatably connected to the top of the test bench.

[0012] Furthermore, the top of the shell and the bottom of the sealing plate are in contact with each other and are sealed to each other, and the bottom and the outer side wall of the shell and the inner side wall of the turntable are in contact with each other and are sealed to each other.

[0013] Furthermore, the reciprocating screw rod passes through the bottom of the test bench and is rotatably connected to the test bench, and the bottom of the fixing frame is fixedly connected to the top of the test bench.

[0014] Furthermore, the end of the air blowing pipe away from the cleaning ring is in contact with the outer wall of the shell and slides with each other. The air blowing pipe is connected to the drain pipe. An electric valve is provided in the drain pipe, and the electric valve is controlled by a photosensitive switch.

[0015] Furthermore, the outer side wall of the piston cylinder is fixedly connected to the test bench, and the end of the exhaust pipe away from the piston cylinder is fixedly connected to the bottom of the cleaning ring.

[0016] A method for testing the airtightness of a security camera comprises the following steps:

[0017] Step 1: During the test, place the security camera housing over the end of the air blowpipe, and ensure that the bottom of the security camera housing fits against the inner wall of the turntable.

[0018] Step 2: Start the cylinder so that the sealing plate cover is located on the top of the shell;

[0019] Step 3: Start the air pump to inject gas into the shell to perform an airtight test on the shell;

[0020] Step 4: After the gas release reaches the requirement, the drive motor can be started to detect the shell;

[0021] Step 5: After the test is completed, start the cylinder to separate the sealing plate from the top of the shell and remove the shell.

[0022] Compared with the prior art, the present invention provides a security camera airtightness test device and method, which has the following beneficial effects:

[0023] 1. When the security camera airtightness test equipment performs an airtightness test on the housing of the security camera, the housing and the pressure sensor rotate simultaneously by driving the motor, so that the pressure sensor can detect the pressure at various locations inside the housing. At the same time, the cleaning ring slides up and down along the outer surface of the housing, so that the air blow pipe blows air toward the outer surface of the housing to clean the outer surface of the housing, thereby preventing dust and other impurities from being present on the outer surface of the housing, causing dust and other impurities to adhere to the leakage points of the housing and causing the housing to become falsely sealed, thereby ensuring the quality and accuracy of the test.

[0024] 2. When the cleaning ring of the security camera airtightness test equipment slides up and down along the outer surface of the shell, when there is a leak in the shell, the light of the fluorescent lamp will shine on the photosensitive switch, causing the photosensitive switch to control the electric valve to open, and the drain pipe will release the marking liquid into the air blow pipe, which will blow the marking liquid toward the leak point of the shell. This will mark the leak point of the shell and enable personnel to directly observe the leaking part of the shell, thereby reducing the burden of personnel finding the leak point and facilitating personnel to repair the shell.

[0025] The parts not involved in the device are the same as the existing technology or can be implemented by using the existing technology. The present invention can clean the outer surface of the shell to prevent the presence of dust and other impurities on the outer surface of the shell, which causes the dust and other impurities to adhere to the leakage points of the shell and cause the shell to have a false seal, thereby ensuring the quality and accuracy of the test. It also realizes the marking of the leakage points of the shell, so that personnel can directly observe the parts of the shell where there are leaks, thereby reducing the burden of personnel finding the leakage points and facilitating personnel to repair the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 This is a schematic diagram of the three-dimensional structure of a security camera airtightness test device proposed by the present invention;

[0027] Figure 2 This is a schematic diagram of the front center section of a security camera airtightness test device proposed by the present invention;

[0028] Figure 3 A security camera airtightness test device proposed by the present invention Figure 2 A in the middle is an enlarged structural diagram;

[0029] Figure 4 This is a schematic diagram of the side middle section structure of a security camera airtightness test device proposed by the present invention;

[0030] Figure 5 This is a schematic diagram of a three-dimensional partially cutaway structure of a security camera airtightness test device proposed by the present invention;

[0031] Figure 6 This is a schematic diagram of the three-dimensional structure of a cleaning ring of a security camera airtightness test device proposed by the present invention;

[0032] Figure 7 This is a schematic diagram of the three-dimensional structure of a photosensitive switch of a security camera airtightness test device proposed by the present invention;

[0033] Figure 8 A security camera airtightness test device proposed by the present invention Figure 3 Enlarged structural diagram at point B in the middle.

[0034] In the figure: 1. test bench; 2. housing; 3. controller; 4. cylinder; 5. sealing plate; 6. air pump; 7. air inlet pipe; 8. drive motor; 9. rotating shaft; 10. turntable; 11. fluorescent lamp; 12. pressure sensor; 13. driving wheel; 14. belt; 15. driven wheel; 16. reciprocating screw; 17. cleaning ring; 18. air blow pipe; 19. liquid storage ring; 20. drain pipe; 21. photosensitive switch; 22. reciprocating plate; 23. piston plate; 24. piston cylinder; 25. air inlet; 26. exhaust pipe; 27. fixing frame; 28. slide plate; 29. ​​magnetic plate; 30. first spring; 31. magnetic block; 32. connecting rod; 33. second spring; 34. fixing box; 35. knocking ball; 36. vibration ring. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0036] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as limiting the present invention. Example

[0037] Reference Figure 1 、 Figure 2 、 Figure 4-Figure 6 A security camera airtightness test device includes a test bench 1 and a housing 2, and further includes: a controller 3 fixedly connected to the top of the test bench 1; a cylinder 4 fixedly connected to the top of the test bench 1, the output end of the cylinder 4 fixedly connected to a sealing plate 5, the top of the housing 2 and the bottom of the sealing plate 5 are in contact with each other and sealed, an air pump 6 is installed on the top of the sealing plate 5, and an air inlet pipe 7 is fixedly connected to the top of the air pump 6;

[0038] A drive motor 8 is mounted on the bottom of the test bench 1 through a motor base, the output end of the drive motor 8 is fixedly connected to a rotating shaft 9, the top of the rotating shaft 9 is fixedly connected to a turntable 10, the bottom and outer side walls of the housing 2 are in contact with the inner side walls of the turntable 10 and are sealed with each other, the rotating shaft 9 passes through the middle of the test bench 1 and is rotatably connected to the test bench 1, the outer side wall and bottom of the turntable 10 are rotatably connected to the top of the test bench 1, a fluorescent lamp 11 and a pressure sensor 12 are mounted on the top of the turntable 10, and the cylinder 4, the air pump 6, the drive motor 8, the fluorescent lamp 11 and the pressure sensor 12 are all controlled by the controller 3;

[0039] When in use, first, the cylinder 4 is started by the controller 3 to make the sealing plate 5 rise, and then the shell 2 is placed in the turntable 10 so that the two fit together, and then the cylinder 4 is started so that the sealing plate 5 covers the top of the shell 2. At this time, the air pump 6 and the fluorescent lamp 11 can be started by the controller 3, so that the air pump 6 injects gas into the shell 2, and the amount of injected gas is observed by the controller 3 so that the interior of the shell 2 reaches a specified air pressure value. After reaching the specified air pressure value, the drive motor 8 and the pressure sensor 12 can be started, so that the drive motor 8 drives the turntable 10 to rotate through the rotating shaft 9, and then drives the pressure sensor 12 to rotate, so that the pressure sensor 12 detects the pressure inside the shell 2 and determines whether the internal pressure of the shell 2 changes;

[0040] The airtightness test of the housing 2 is realized, and due to the rotation of the pressure sensor 12, the air pressure change area of ​​the housing 2 can be detected in time, thereby improving the quality and efficiency of the test.

[0041] Reference Figure 1-Figure 3 、 Figure 5、 Figure 6 , further comprising: a driving wheel 13 fixedly connected to the outer wall of the rotating shaft 9, a belt 14 being attached to the outer wall of the driving wheel 13, a driven wheel 15 being attached to the inner wall of the belt 14, a reciprocating screw 16 being fixedly connected to the inner wall of the driven wheel 15, the reciprocating screw 16 passing through the bottom of the test bench 1 and being rotatably connected to the test bench 1, the top of the reciprocating screw 16 being rotatably connected to a fixing bracket 27, the bottom of the fixing bracket 27 being fixedly connected to the top of the test bench 1;

[0042] When the rotating shaft 9 rotates, the driving wheel 13 drives the belt 14 so that the belt 14 drives the driven wheel 15 to rotate, thereby causing the reciprocating screw rod 16 to rotate.

[0043] Reference Figure 1-Figure 3 、 Figure 5-Figure 7 , also includes: a cleaning ring 17 connected to the outer wall of the reciprocating screw 16 by a thread, the inner side wall of the cleaning ring 17 is fixedly connected to a blowing pipe 18, the end of the blowing pipe 18 away from the cleaning ring 17 is in contact with the outer wall of the shell 2, and they slide with each other, and a photosensitive switch 21 is installed on the inner side wall of the blowing pipe 18, the top of the cleaning ring 17 is fixedly connected to a liquid storage ring 19, and the inner side wall of the liquid storage ring 19 is fixedly connected to a drain pipe 20, the blowing pipe 18 is connected to the drain pipe 20, an electric valve is provided in the drain pipe 20, and the electric valve is controlled by the photosensitive switch 21, and a brush is installed at the part where the blowing pipe 18 is in contact with the shell 2;

[0044] When the reciprocating screw 16 rotates, the cleaning ring 17 will slide up and down, and the air blowing pipe 18 will slide up and down along the outer surface of the shell 2, and the dust and other impurities attached to the outer surface of the shell 2 will be cleaned by the bristles. In this process, the air blowing pipe 18 will also blow air toward the shell 2 to further remove the dust and other impurities attached to the outer surface of the shell 2. When there is a leak in the shell 2, the light of the fluorescent lamp 11 will pass through the leak point and shine on the photosensitive switch 21, so that the photosensitive switch 21 controls the electric valve to open, so that the marking liquid in the liquid storage ring 19 is released into the air blowing pipe 18 through the drain pipe 20. The gas blown out by the air blowing pipe 18 adheres to the leak point of the shell 2, marking the leak point of the shell 2. In this process, since the shell 2 is in a rotating state and the cleaning ring 17 slides up and down;

[0045] The shell 2 is fully cleaned to prevent the presence of dust and other impurities on the outer surface of the shell 2, which may cause the dust and other impurities to adhere to the leakage points of the shell 2 and cause the shell 2 to have a false seal, thereby ensuring the quality and accuracy of the test, and marking the leakage points of the shell 2, so that personnel can directly observe the parts of the shell 2 where the leakage exists, thereby reducing the burden on personnel to find the leakage points and facilitating the maintenance of the shell 2.

[0046] Reference Figures 1-6, also includes: a reciprocating plate 22 connected to the outer wall of the reciprocating screw 16 by a thread, a piston plate 23 is fixedly connected to the bottom of the reciprocating plate 22, and a piston cylinder 24 is slidably connected to the outer wall of the piston plate 23. The outer wall of the piston cylinder 24 is fixedly connected to the test bench 1, and an air inlet 25 is opened on the side wall of the piston cylinder 24. An exhaust pipe 26 is fixedly connected to the side of the piston cylinder 24 away from the air inlet 25. One end of the exhaust pipe 26 away from the piston cylinder 24 is fixedly connected to the bottom of the cleaning ring 17, and a one-way valve is installed in the air inlet 25 so that outside air can only enter the piston cylinder 24 through the air inlet 25. The exhaust pipe 26 is configured as a bellows and can be retracted, and a one-way valve is installed in the exhaust pipe 26 so that the air in the piston cylinder 24 can only be discharged through the exhaust pipe 26;

[0047] When the reciprocating screw 16 rotates, the reciprocating plate 22 will slide up and down along the outer surface of the reciprocating screw 16, and then the piston plate 23 will slide up and down along the inner wall of the piston cylinder 24. When the piston plate 23 slides up and down, the outside air will be drawn in through the air inlet 25, and the air in the piston cylinder 24 will be discharged into the cleaning ring 17 through the exhaust pipe 26. When the piston plate 23 on one side slides upward, the piston plate 23 on the other side will slide downward, so that the blowing pipe 18 can always discharge air.

[0048] The air blowing pipe 18 can always blow air toward the housing 2, thereby ensuring the cleaning quality and efficiency of the housing 2 by the air blowing pipe 18 and ensuring that the leakage point of the housing 2 is marked in time by the marking liquid, thereby ensuring the accuracy of the marking.

[0049] Reference Figure 1-Figure 7 A method for testing the airtightness of a security camera comprises the following steps:

[0050] Step 1: During the test, the security camera housing 2 is placed on the end of the air blowing tube 18, and the bottom of the security camera housing 2 is aligned with the inner wall of the turntable 10;

[0051] First, the cylinder 4 is activated by the controller 3 to raise the sealing plate 5, and then the housing 2 is placed in the turntable 10 so that the two fit together;

[0052] Step 2: Start the cylinder 4 so that the sealing plate 5 is covered on the top of the housing 2;

[0053] Step 3: Start the air pump 6 to inject gas into the housing 2 to perform an airtight test on the housing 2;

[0054] Start the cylinder 4 so that the sealing plate 5 covers the top of the shell 2. Then, the air pump 6 and the fluorescent lamp 11 can be started through the controller 3 to make the air pump 6 inject gas into the shell 2. The amount of injected gas is observed through the controller 3 until the inside of the shell 2 reaches the specified air pressure value.

[0055] Step 4: After the gas release reaches the requirement, the drive motor 8 can be started to detect the housing 2;

[0056] When the specified air pressure value is reached, the drive motor 8 and the pressure sensor 12 are started, so that the drive motor 8 drives the turntable 10 to rotate through the rotating shaft 9, and then drives the pressure sensor 12 to rotate, so that the pressure sensor 12 detects the pressure inside the housing 2 and determines whether the internal pressure of the housing 2 changes;

[0057] The airtightness test of the housing 2 is realized, and due to the rotation of the pressure sensor 12, the air pressure change area of ​​the housing 2 can be detected in time, thereby improving the quality and efficiency of the test;

[0058] When the shaft 9 rotates, the belt 14 is driven by the driving wheel 13, so that the belt 14 drives the driven wheel 15 to rotate, thereby causing the reciprocating screw 16 to rotate;

[0059] When the reciprocating screw 16 rotates, the cleaning ring 17 will slide up and down, and the air blowing pipe 18 will slide up and down along the outer surface of the shell 2, and the dust and other impurities attached to the outer surface of the shell 2 will be cleaned by the bristles. When the reciprocating screw 16 rotates, the reciprocating plate 22 will slide up and down along the outer surface of the reciprocating screw 16, and then the piston plate 23 will slide up and down along the inner wall of the piston cylinder 24. When the piston plate 23 slides up and down, the outside air will be extracted through the air inlet 25, and the air in the piston cylinder 24 will be discharged into the cleaning ring 17 through the exhaust pipe 26. When the piston plate 23 on one side slides upward, the piston plate 23 on the other side will slide to the The cleaning ring 17 slides downward, so that the air blowing pipe 18 can always discharge air, and in this process, the air blowing pipe 18 will also blow air toward the shell 2 to further remove impurities such as dust attached to the outer surface of the shell 2. When there is a leak in the shell 2, the light of the fluorescent lamp 11 will pass through the leak point and illuminate the photosensitive switch 21, so that the photosensitive switch 21 controls the electric valve to open, so that the marking liquid in the liquid storage ring 19 is released into the air blowing pipe 18 through the discharge pipe 20. As the gas blown out of the air blowing pipe 18 adheres to the leak point of the shell 2, the leak point of the shell 2 is marked. In this process, since the shell 2 is in a rotating state and the cleaning ring 17 slides up and down;

[0060] The shell 2 is fully cleaned to prevent the presence of dust and other impurities on the outer surface of the shell 2, which may cause the dust and other impurities to adhere to the leakage point of the shell 2 and cause the shell 2 to be falsely sealed, thereby ensuring the quality and accuracy of the test. The leakage point of the shell 2 is marked, so that personnel can directly observe the leakage part of the shell 2, thereby reducing the burden of personnel finding the leakage point and facilitating personnel to repair the shell 2.

[0061] Step 5: After the test is completed, start the cylinder 4 to separate the sealing plate 5 from the top of the shell 2, and remove the shell 2;

[0062] After the detection is completed, the drive motor 8 is turned off, and the cylinder 4 is started to separate the sealing plate 5 from the top of the housing 2, and the housing 2 is removed. Example

[0063] Reference Figure 2 、 Figure 3 、 Figure 8 A security camera airtightness test device further includes: a slide plate 28 slidably connected to the inner wall of the exhaust pipe 26, a magnetic plate 29 fixedly connected to the top of the slide plate 28, a first spring 30 fixedly connected to the top of the inner wall of the cleaning ring 17, a magnetic block 31 attracted to one side of the magnetic plate 29, a connecting rod 32 fixedly connected to the side of the magnetic block 31 away from the magnetic plate 29, a fixing box 34 slidably connected to the outer wall of the connecting rod 32, the magnetic plate 29 passes through the cleaning ring 17 and is fixed to the cleaning ring 17 Sealed sliding connection, the magnetic plate 29 passes through the liquid storage ring 19 and is sealed and slidably connected to the liquid storage ring 19, the second spring 33 is fixedly connected to the side of the magnetic block 31 close to the connecting rod 32, the end of the second spring 33 away from the magnetic block 31 is fixedly connected to the inner side wall of the fixed box 34, the outer wall of the magnetic block 31 is slidably connected to the inner side wall of the fixed box 34, the end of the connecting rod 32 away from the magnetic block 31 is fixedly connected to the knocking ball 35, the bottom of the knocking ball 35 is fixedly connected to the vibration ring 36, the bottom of the vibration ring 36 is in contact with the top of the blowing tube 18 and slides with each other;

[0064] When air enters the exhaust pipe 26 on one side, the slide plate 28 will slide upward under the push of the airflow, thereby pushing the magnetic plate 29 to slide upward. When the magnetic plate 29 is separated from the position of the magnetic block 31, the magnetic block 31 will suddenly slide inward under the action of the second spring 33, and push the knocking ball 35 to knock on the shell 2 through the connecting rod 32. At this time, the knocking ball 35 will vibrate. The vibration generated by the knocking ball 35 will make the vibration ring 36 vibrate, thereby driving the blowing pipe 18 to vibrate. When the exhaust pipe 26 on this side stops taking in air, the slide plate 28 will reset under the action of the first spring 30, thereby driving the magnetic plate 29 to reset, so that the magnetic block 31 slides outward under the adsorption action of the magnetic plate 29, and then the knocking ball 35 is separated from the shell 2 through the connecting rod 32.

[0065] The impact of birds under normal use of the shell 2 is simulated, and the force of the knocking ball 35 is smaller than the force of the external bird impact. When the shell 2 is squeezed by the specified air pressure, the knocking can further promote the airtight detection of the shell 2. If the shell 2 leaks when it is knocked by the knocking ball 35 under the condition of specified air pressure, the airtightness of the surface shell 2 does not meet the production requirements. At the same time, when the knocking ball 35 knocks on the shell 2, the shell 2 can vibrate slightly, and the dust blown down by the air pipe 18 is shaken off the shell 2. The vibration generated by the knocking ball 35 when knocking will be transmitted to the air pipe 18 along the vibration ring 36, and the dust and other impurities attached to the outer surface of the air pipe 18 will be cleaned off, so as to prevent dust and other impurities from adhering to the air pipe 18 and causing scratches on the shell 2 by dust and other impurities, thereby affecting the aesthetics of the shell 2, thereby improving the cleaning quality of the shell 2 and ensuring the quality of the airtight detection of the shell 2.

[0066] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A security camera airtightness test device, comprising a test bench and a housing, characterized in that: Also includes: A controller fixedly connected to the top of the test bench; A cylinder fixedly connected to the top of the test bench, the output end of the cylinder fixedly connected to a sealing plate, an air pump installed on the top of the sealing plate, and an air intake pipe fixedly connected to the top of the air pump; A drive motor is mounted on the bottom of the test bench through a motor base, wherein the output end of the drive motor is fixedly connected to a rotating shaft, the top of the rotating shaft is fixedly connected to a turntable, and a fluorescent lamp and a pressure sensor are mounted on the top of the turntable; The top of the housing and the bottom of the sealing plate are in contact with each other and are sealed to each other. The bottom and outer wall of the housing and the inner wall of the turntable are in contact with each other and are sealed to each other. Also includes: A driving wheel is fixedly connected to the outer wall of the rotating shaft, a belt is attached to the outer wall of the driving wheel, a driven wheel is attached to the inner wall of the belt, a reciprocating screw is fixedly connected to the inner wall of the driven wheel, and the top of the reciprocating screw is rotatably connected to a fixed frame; A cleaning ring is connected to the outer wall of the reciprocating screw by a thread, the inner side wall of the cleaning ring is fixedly connected to an air blowing pipe, the inner side wall of the air blowing pipe is installed with a photosensitive switch, the top of the cleaning ring is fixedly connected to a liquid storage ring, and the inner side wall of the liquid storage ring is fixedly connected to a drain pipe; Bristles are installed at the part where the air blowing tube and the shell meet; A reciprocating plate is connected to the outer wall of the reciprocating screw by a thread, the bottom of the reciprocating plate is fixedly connected to a piston plate, the outer wall of the piston plate is slidably connected to a piston cylinder, the side wall of the piston cylinder is provided with an air inlet, and the side of the piston cylinder away from the air inlet is fixedly connected to an exhaust pipe; The end of the air blowing pipe away from the cleaning ring is in contact with the outer wall of the shell and slides with each other. The air blowing pipe is connected to the drain pipe. An electric valve is provided in the drain pipe, and the electric valve is controlled by a photosensitive switch. When the reciprocating screw rotates, the cleaning ring will slide up and down, and the air blowing pipe will slide up and down along the outer surface of the shell, and the dust attached to the outer surface of the shell will be cleaned with the bristles. In this process, the air blowing pipe will blow air toward the shell to remove the dust attached to the outer surface of the shell, and when there is a leak in the shell, the light of the fluorescent lamp will pass through the leakage point and shine on the photosensitive switch, so that the photosensitive switch controls the electric valve to open, so that the marking liquid in the liquid storage ring is released into the air blowing pipe through the drain pipe, and the gas blown out by the air blowing pipe adheres to the leakage point of the shell to mark the leakage point of the shell.

2. The airtightness test equipment for security cameras according to claim 1, characterized in that: The rotating shaft passes through the middle of the test bench and is rotatably connected to the test bench. The outer side wall and the bottom of the turntable are rotatably connected to the top of the test bench.

3. The airtightness test equipment for security cameras according to claim 2, characterized in that: The reciprocating screw rod passes through the bottom of the test bench and is rotatably connected to the test bench. The bottom of the fixing frame is fixedly connected to the top of the test bench.

4. The airtightness test equipment for security cameras according to claim 3, characterized in that: The outer side wall of the piston cylinder is fixedly connected to the test bench, and one end of the exhaust pipe away from the piston cylinder is fixedly connected to the bottom of the cleaning ring.

5. A method for testing the airtightness of a security camera, using the airtightness testing device for a security camera according to any one of claims 1 to 4, characterized in that: The steps include: Step 1: During the test, place the security camera housing over the end of the air blowpipe, and ensure that the bottom of the security camera housing fits against the inner wall of the turntable. Step 2: Start the cylinder so that the sealing plate cover is located on the top of the shell; Step 3: Start the air pump to inject gas into the shell to perform an airtight test on the shell; Step 4: After the gas release reaches the requirement, the drive motor can be started to detect the shell; Step 5: After the test is completed, start the cylinder to separate the sealing plate from the top of the shell and remove the shell.

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