Automobile lamp airtightness visual detection device

Abstract

The utility model provides a kind of automobile lamps and lanterns airtightness direct-viewing detection device, it is related to automobile lamps and lanterns airtightness detection technical field, including bottom plate, the top of bottom plate is provided with detection mechanism;Detection mechanism includes two detection boxes, the bottom surface of each detection box is fixedly connected with the upper surface of bottom plate, the top of bottom plate is provided with two sealing caps, the bottom surface of each sealing cap is in contact with the upper surface of detection box, the top of bottom plate is provided with gas pump, and the output end of gas pump power is fixedly communicated with multiple pipes.The automobile lamps and lanterns airtightness direct-viewing detection device, the design of detection box and sealing cap, sealing cover, in detection process, water cannot enter lamps and lanterns, so as to completely eliminate the possibility of water damage lamps and lanterns, gas pump is filled with air in detection box by multiple pipes and air inlet pipe, gas pressure sensor can accurately detect the air pressure in tank, cooperate first solenoid valve can accurately control opening and detection process, and the valve of sealing cover is controlled to open and close by rotating rod.

Description

Technical Field

[0001] This utility model relates to a testing device, specifically a visual testing device for the airtightness of automotive lamps, belonging to the field of automotive lamp airtightness testing technology. Background Technology

[0002] Automotive lighting airtightness testing refers to conducting a sealing test on automotive lighting fixtures to ensure that their function or safety is not affected by the intrusion of water, dust, or other external environmental factors during use. This test is crucial to ensuring that automotive lighting fixtures can still work normally in different environments.

[0003] Chinese Patent Publication CN222166445U discloses a visual inspection device for the airtightness of automotive lamps. As the mounting plate moves, a flipping component on one side of the connecting shaft causes the mounting plate to rotate, tilting the part of the lamp to be inspected downwards, thus submerging the entire lamp in water. Then, an air pipe passes through the connecting groove and connects to an air hole on one side of the lamp, and air is injected into the lamp through the air pipe. The airtightness of the lamp is detected by observing whether there are air bubbles in the water.

[0004] The aforementioned patented technology, while testing the airtightness of automotive lamps by submerging the lamps in water to observe for air bubbles, requires subsequent drying of the lamps, and water entering the lamps could potentially damage them. Therefore, this paper proposes a visual testing device for the airtightness of automotive lamps. Utility Model Content

[0005] This invention proposes a visual inspection device for the airtightness of automotive lamps to solve the problem that the inspection process in the prior art is prone to affecting the lamps.

[0006] This utility model is achieved through the following technical solution: a visual inspection device for the airtightness of automotive lamps, including a base plate, and an inspection mechanism is provided above the base plate;

[0007] The testing mechanism includes two testing chambers. The bottom surface of each testing chamber is fixedly connected to the upper surface of a base plate. Two sealing covers are provided on the top of the base plate. The bottom surface of each sealing cover is in contact with the upper surface of the testing chamber. An air pump is provided on the top of the base plate. The output end of the air pump is fixedly connected to a multi-port pipe. The end of the multi-port pipe away from the air pump is fixedly connected to two air inlet pipes. The end of each air inlet pipe near the testing chamber is fixedly connected to the front of the testing chamber. A first solenoid valve is fixedly connected to the outer surface of each air inlet pipe. A gas pressure sensor is fixedly installed on the top of each testing chamber. A sealing cover is fixedly connected to the bottom surface of each sealing cover. The bottom surface of each sealing cover is in contact with the inner bottom wall of the testing chamber. A valve is fixedly connected to the outer surface of each sealing cover. A rotating rod is fixedly connected to the top of each valve.

[0008] A sealing assembly is provided above the base plate.

[0009] The sealing assembly includes a fixing frame, the bottom surface of which is fixedly connected to the upper surface of the base plate, the front surface of which is fixedly connected to the back of the air pump, and two multi-stage electric push rods fixedly connected to the bottom surface of the fixing frame. The telescopic end of each multi-stage electric push rod is fixedly connected to the upper surface of the sealing cover, and a sealing bearing is fixedly connected to the inner wall of each sealing cover. The inner ring of each sealing bearing is fixedly connected to the outer surface of the rotating rod.

[0010] The bottom surface of the base plate is fixedly connected to two support plates, and the bottom surface of each support plate is fixedly connected to a base.

[0011] Each of the two detection boxes has an air outlet pipe fixedly connected to one of its opposite sides, and a second solenoid valve is fixedly connected to the outer surface of each air outlet pipe.

[0012] A positioning plate is fixedly connected to the front of the mounting bracket, and the upper surface of the positioning plate is fixedly connected to the bottom surface of the air pump.

[0013] Two reinforcing blocks are fixedly connected to the outer surface of the multi-port pipe, and the back of each reinforcing block is fixedly connected to the front of the base plate.

[0014] This utility model provides a visual inspection device for the airtightness of automotive lamps, which has the following beneficial effects:

[0015] This visual inspection device for the airtightness of automotive lighting fixtures features a test chamber and a sealed cover / cover design that prevents water from entering the fixture during testing, completely eliminating the possibility of water damage. An air pump fills the test chamber with air through a multi-port pipe and an air inlet pipe. A gas pressure sensor accurately detects the air pressure inside the chamber, and a first solenoid valve precisely controls the opening and closing of the chamber and the testing process. The valve on the sealed cover is controlled by a rotating rod, making it easy to operate and allowing gas to enter the sealed cover to test the airtightness of the lighting fixture. The entire testing process is conducted in a dry environment, eliminating the need for drying the lighting fixture, saving post-testing processing steps and improving testing efficiency. This device can visually inspect the airtightness of automotive lighting fixtures.

[0016] This visual inspection device for automotive lighting airtightness features a multi-stage electric push rod connected to a sealing cover, enabling effective sealing of automotive lighting fixtures. During airtightness testing, it prevents internal air leakage. The fixed connection between the sealing bearing on the inner wall of the sealing cover and the rotating rod ensures sealing and stability during the relevant operations. This sealing assembly makes automotive lighting airtightness testing more efficient, safe, and convenient, improving the accuracy of the test. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the base plate structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the fixing frame structure of this utility model;

[0019] Figure 3 This is a schematic diagram of the sealing cap structure of this utility model;

[0020] Figure 4 This is a cross-sectional structural diagram of the detection box of this utility model.

[0021] Explanation of reference numerals in the attached figures

[0022] Base plate;

[0023] Testing equipment; 201. Testing box; 202. Sealing cover; 203. Air pump; 204. Multi-port pipe; 205. Air inlet pipe; 206. First solenoid valve; 207. Gas pressure sensor; 208. Sealing cover; 209. Rotating rod; 210. Valve;

[0024] 3. Sealing assembly; 301. Fixing bracket; 302. Multi-stage electric actuator; 303. Sealed bearing;

[0025] 4. Support plate; 5. Base; 6. Positioning plate; 7. Reinforcing block; 8. Air outlet pipe; 9. Second solenoid valve. Detailed Implementation

[0026] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this application.

[0027] Please see Figures 1-4 This utility model provides a visual inspection device for the airtightness of automotive lamps, including a base plate 1 and an inspection mechanism 2 disposed above the base plate 1;

[0028] The testing mechanism 2 includes two testing boxes 201. The bottom surface of each testing box 201 is fixedly connected to the upper surface of the base plate 1. Two sealing covers 202 are provided on the top of the base plate 1. The bottom surface of each sealing cover 202 is in contact with the upper surface of the testing box 201. Two support plates 4 are fixedly connected to the bottom surface of the base plate 1. A base 5 is fixedly connected to the bottom surface of each support plate 4. This structure allows the entire automotive lighting airtightness visual testing device to be placed more stably on the workbench, avoiding the impact of device shaking on the accuracy of the test results during the testing process and improving the overall stability of the device.

[0029] Please refer to this carefully. Figure 2 An air pump 203 is installed above the base plate 1. The power output end of the air pump 203 is fixedly connected to a multi-port pipe 204. The end of the multi-port pipe 204 away from the air pump 203 is fixedly connected to two air inlet pipes 205. The end of each air inlet pipe 205 near the test box 201 is fixedly connected to the front of the test box 201. The two test boxes 201 are fixedly connected to air outlet pipes 8 on opposite sides. The outer surface of each air outlet pipe 8 is fixedly connected to a second solenoid valve 9. The presence of the air outlet pipe 8 facilitates the discharge of gas from the test box 201 after the test. The second solenoid valve 9 can precisely control the opening and closing of the air outlet pipe 8 to ensure that the pressure in the test box 201 can be effectively discharged, ensuring the accuracy of the test and facilitating the next test.

[0030] Please refer to this carefully. Figure 2 and Figure 1Each air inlet pipe 205 has a first solenoid valve 206 fixedly connected to its outer surface. Each detection box 201 has a gas pressure sensor 207 fixedly installed at its top. The gas pressure sensor 207 is a piezoresistive gas pressure sensor, which is a sensor that uses the piezoresistive effect to measure gas pressure. It consists of a piezoresistive resistor and an elastic diaphragm. When gas pressure acts on the elastic diaphragm, the diaphragm deforms, causing a change in the resistance of the piezoresistive resistor. By measuring the change in resistance, the magnitude of the gas pressure can be measured. Each sealing cover 202 has a sealing shield 208 fixedly connected to its bottom surface. The bottom surface of each cover 208 is in contact with the inner bottom wall of the test chamber 201. Each outer surface of the cover 208 is fixedly connected to a valve 210. Each valve 210 is fixedly connected to a rotating rod 209 at its top. Two reinforcing blocks 7 are fixedly connected to the outer surface of the multi-port pipe 204. The back of each reinforcing block 7 is fixedly connected to the front of the base plate 1. The reinforcing blocks 7 can enhance the stability of the multi-port pipe 204 and prevent the multi-port pipe 204 from shaking or loosening due to gas pressure and other factors when the air pump 203 is working. This ensures the stable connection between the multi-port pipe 204 and the air inlet pipe 205, thereby ensuring the stability of the gas delivered to the test chamber 201 and improving the accuracy of the test.

[0031] Please refer to this carefully. Figure 2 and Figure 4 A sealing assembly 3 is provided above the base plate 1. The sealing assembly 3 includes a fixing frame 301. The bottom surface of the fixing frame 301 is fixedly connected to the upper surface of the base plate 1, and the front surface of the fixing frame 301 is fixedly connected to the back surface of the air pump 203. Two multi-stage electric push rods 302 are fixedly connected to the bottom surface of the fixing frame 301. The telescopic end of each multi-stage electric push rod 302 is fixedly connected to the upper surface of the sealing cover 202. A sealing bearing 303 is fixedly connected to the inner wall of each sealing cover 202. The inner rings of the 3 are all fixedly connected to the outer surface of the rotating rod 209. The extension and retraction of the multi-stage electric push rod 302 can easily control the lifting and lowering of the sealing cover 202, making it easy to put or take out the automotive lamp into the test box 201. The inner ring of the sealing bearing 303 on the inner wall of the sealing cover 202 is fixedly connected to the outer surface of the rotating rod 209. The sealing bearing 303 can ensure the sealing performance when the rotating rod 209 rotates, making the opening and closing operation of the valve 210 more flexible, while not affecting the overall sealing performance of the sealing cover 202.

[0032] Please refer to this carefully. Figure 1 A positioning plate 6 is fixedly connected to the front of the fixing frame 301. The upper surface of the positioning plate 6 is fixedly connected to the bottom surface of the air pump 203. The positioning plate 6 can further stabilize the position of the air pump 203 and prevent the air pump 203 from shifting during operation, thereby ensuring that the air pump 203 stably delivers gas to the detection box 201 through the multi-port pipe 204.

[0033] In use, the operator first connects the air pump 203, gas pressure sensor 207, first solenoid valve 206, multi-stage electric push rod 302, and second solenoid valve 9 to the power supply to ensure a stable power supply. Then, the operator opens the multi-stage electric push rod 302, which shortens to lift the sealing cover 202 and the sealing shield 208. The operator then places the automotive lamp to be tested into the testing box 201. Afterward, the sealing cover 202 and the sealing shield 208 are reset, placing the automotive lamp inside the sealing shield 208. At the same time, sealing gaskets are fixed to the bottom surfaces of both the sealing cover 202 and the sealing shield 208 to increase the sealing effect with the testing box 201.

[0034] Then, the air pump 203, the first solenoid valve 206, and the gas pressure sensor 207 are activated for testing. After the air pump 203 is turned on, air is injected into the testing chamber 201 through the multi-port pipe 204 and the air inlet pipe 205. With continuous air injection, the pressure inside the testing chamber 201 gradually increases. The gas pressure sensor 207 detects the pressure inside the testing chamber 201 through a pipe at one end of the chamber. When the pressure reaches a specified value, the air pump 203 and the first solenoid valve 206 are turned off to maintain pressure inside the testing chamber 201. When the operator rotates the rotating rod 209, the valve 210 is opened. After the valve 210 is opened, gas can enter the sealing cover 208. Since the space and air intake are constant after the lamp is placed inside the sealing cover 208, the pressure inside the detection box 201 will decrease slightly as the gas enters the sealing cover 208. If the pressure inside the detection box 201 decreases too much, it indicates that the lamp has poor airtightness. The gas entering the lamp increases the amount of air entering the sealing cover 208, resulting in an excessive decrease in the pressure inside the detection box 201.

[0035] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A visual inspection device for the airtightness of automotive lamps, comprising a base plate (1), characterized in that: A detection mechanism (2) is provided above the base plate (1); The testing mechanism (2) includes two testing boxes (201). The bottom surface of each testing box (201) is fixedly connected to the upper surface of the base plate (1). Two sealing covers (202) are provided on the top of the base plate (1). The bottom surface of each sealing cover (202) is in contact with the upper surface of the testing box (201). An air pump (203) is provided on the top of the base plate (1). The output end of the air pump (203) is fixedly connected to a multi-port pipe (204). The end of the multi-port pipe (204) away from the air pump (203) is fixedly connected to two air inlet pipes (205). Each air inlet pipe (205) is close to the testing box. One end of each of the (201) is fixedly connected to the front of the detection box (201), and the outer surface of each of the air inlet pipes (205) is fixedly connected to a first solenoid valve (206). A gas pressure sensor (207) is fixedly installed on the top of each of the detection boxes (201). A sealing cover (208) is fixedly connected to the bottom surface of each of the sealing covers (202). The bottom surface of each of the sealing covers (208) is in contact with the inner bottom wall of the detection box (201). A valve (210) is fixedly connected to the outer surface of each of the sealing covers (208). A rotating rod (209) is fixedly connected to the top of each of the valves (210). A sealing assembly (3) is provided above the base plate (1).

2. The visual inspection device for the airtightness of automotive lamps according to claim 1, characterized in that: The sealing assembly (3) includes a fixing frame (301), the bottom surface of which is fixedly connected to the upper surface of the base plate (1), the front surface of which is fixedly connected to the back of the air pump (203), and two multi-stage electric push rods (302) are fixedly connected to the bottom surface of the fixing frame (301). The telescopic end of each multi-stage electric push rod (302) is fixedly connected to the upper surface of the sealing cover (202), and a sealing bearing (303) is fixedly connected to the inner wall of each sealing cover (202). The inner ring of each sealing bearing (303) is fixedly connected to the outer surface of the rotating rod (209).

3. The visual inspection device for the airtightness of automotive lamps according to claim 1, characterized in that: The bottom surface of the base plate (1) is fixedly connected to two support plates (4), and the bottom surface of each support plate (4) is fixedly connected to a base (5).

4. The visual inspection device for the airtightness of automotive lamps according to claim 1, characterized in that: Each of the two detection boxes (201) has an air outlet pipe (8) fixedly connected to one side away from the other, and a second solenoid valve (9) is fixedly connected to the outer surface of each air outlet pipe (8).

5. The visual inspection device for the airtightness of automotive lamps according to claim 2, characterized in that: The front of the fixed frame (301) is fixedly connected to a positioning plate (6), and the upper surface of the positioning plate (6) is fixedly connected to the bottom surface of the air pump (203).

6. The visual inspection device for the airtightness of automotive lamps according to claim 1, characterized in that: Two reinforcing blocks (7) are fixedly connected to the outer surface of the multi-port pipe (204), and the back of each reinforcing block (7) is fixedly connected to the front of the base plate (1).

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