Durability testing device for automobile door and window sealing strip

Abstract

The utility model discloses an automobile door and window sealing strip durability test device, the technical scheme is that the device comprises a test box and a temperature control box, the top of the test box is provided with the temperature control box, the bottom of the temperature control box is provided with an exhaust fan, and the output end of the exhaust fan is connected to the top of the test box through a conveying pipe. The input end of the exhaust fan is connected with a cooling box through a connecting pipe, a heating box is installed in the middle of the conveying pipe, a heating wire is installed in the heating box, a temperature sensor is installed at the top in the testing box, and a semiconductor refrigerator is installed on one side of the cooling box. The cold end of the semiconductor cooler is located in the cooling box and provided with a cooling piece. The durability test device for the automobile door and window sealing strip solves the problem that the durability test precision of the automobile door and window sealing strip is affected due to the facts that the test environment temperature of an existing automobile door and window sealing strip test mechanism is fixed and the test data of the automobile door and window sealing strip is not uniform, and the durability test precision of the automobile door and window sealing strip is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile door and window sealing strip production, in particular to a durability testing device for automobile door and window sealing strips. Background Art

[0002] Car door and window seals are rubber or plastic strips installed on the edge of car doors and windows. They are used to seal the gap between the doors and windows and the car body, preventing external substances such as water, wind, noise and dust from entering the car, while providing a comfortable driving environment. Car door and window seals play an important role in the manufacturing and maintenance of cars. They not only provide a comfortable, quiet and dry driving environment, but also protect the items in the car from the influence of the external environment. When using and maintaining car door and window seals, regular inspection and maintenance are required to ensure their normal operation and good sealing effect.

[0003] After searching, it was found that the automobile door and window sealing strip testing device in the prior art, such as the automobile door sealing strip durability testing device disclosed in publication number CN209416675U, adopts a servo motor as a power source, and the control system can be a PLC, and utilizes an eccentric wheel cam mechanism to drive the lower clamp to perform linear motion. Specifically, the rotational motion of the eccentric wheel moves upward through the driven pulley meshing with the eccentric wheel, driving the lower clamp fixed with the linear bearing to rise or fall, and the rotational motion is changed into linear motion through the combination of the eccentric wheel and the linear bearing, thereby realizing continuous squeezing of the automobile door sealing strip and realizing the durability test action cycle of the automobile door sealing strip.

[0004] The test environment temperature of the existing automobile door and window sealing strip testing mechanism is fixed, which leads to one-sided test data of automobile door and window sealing strips and affects the durability test accuracy of automobile window sealing strips. Therefore, we propose a durability test device for automobile door and window sealing strips. Utility Model Content

[0005] The utility model aims to provide a durability testing device for automobile door and window sealing strips, which has the effect of changing the test environment temperature of the sealing strips, and solves the problem that the test environment temperature of the existing automobile door and window sealing strip testing mechanism is fixed, resulting in one-sided test data of the automobile door and window sealing strips, thus affecting the durability test accuracy of the automobile window sealing strips.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a durability testing device for automobile door and window sealing strips, comprising a test box and a temperature control box, wherein a temperature control box is installed on the top of the test box, an exhaust fan is installed at the bottom of the temperature control box, the output end of the exhaust fan is connected to the top of the test box through a delivery pipe, the input end of the exhaust fan is connected to a cooling box through a connecting pipe, a heating box is installed in the middle of the delivery pipe, a heating wire is installed inside the heating box, and a temperature sensor is installed on the top of the test box.

[0007] Preferably, a semiconductor refrigerator is installed on one side of the cooling box, the cold end of the semiconductor refrigerator is located inside the cooling box and a cooling sheet is installed, and the top of the cooling box is connected to the top of the temperature control box through an exhaust pipe.

[0008] Preferably, a box door is installed on the front surface of the test box via hinges, and an observation window is installed in the middle of the box door.

[0009] Preferably, a support frame A is installed on one side of the bottom of the test box, and a movable plate is installed on one side of the bottom of the test box close to the support frame A.

[0010] Preferably, positioning plates are installed on both sides of the top of the movable plate, a sliding rod is installed in the middle of the positioning plates on both sides, the outer surface of the sliding rod is sleeved with a support frame B, springs are installed on both sides of the outer surface of the sliding rod close to the support frame B, and a sealing strip is installed on the side of the support frame A adjacent to the support frame B through a clamping frame.

[0011] Preferably, a pressure sensor is installed on one side of the support frame B close to the clamping frame through a card slot, and a control box is installed on one side of the test box through a connecting frame, and the control box is electrically connected to the pressure sensor.

[0012] Preferably, a test motor is installed on one side of the top of the movable plate, a cam is installed on the output shaft of the test motor, and a push rod is installed on one side of the support frame B close to the cam.

[0013] Preferably, an adjusting motor is installed at one side of the interior of the test box, a screw rod is installed on the output shaft of the adjusting motor, and the screw rod is sleeved inside the movable plate.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0015] 1. The utility model achieves the effect of changing the test environment temperature of the sealing strip by arranging an exhaust fan, a cooling box, a heating box and a temperature sensor. A temperature control box is arranged on the top of the test box, an exhaust fan is arranged at the bottom of the temperature control box, the output end of the exhaust fan is connected to the top of the test box through a conveying pipe, the input end of the exhaust fan is connected to the cooling box through a connecting pipe, a heating box is arranged in the middle of the conveying pipe, a heating wire is arranged inside the heating box, and a temperature sensor is arranged at the top of the test box to solve the problem that the test environment temperature of the existing automobile door and window sealing strip testing mechanism is fixed, resulting in one-sided test data of automobile door and window sealing strips and affecting the durability test accuracy of automobile window sealing strips, thereby improving the durability test accuracy of automobile window sealing strips.

[0016] 2. The utility model achieves the effect of conveniently adjusting the test position of the sealing strip by arranging an adjusting motor, a screw and a movable plate. A support frame A is arranged on one side of the bottom of the test box, a movable plate is arranged on the side of the bottom of the test box close to the support frame A, an adjusting motor is arranged on one side of the inside of the test box, a screw is arranged on the output shaft of the adjusting motor, and the screw is sleeved inside the movable plate, so as to solve the problem that the closing pressure of the existing sealing strip is fixed during the durability test, and the closing process of the window sealing strip cannot be simulated, which affects the accuracy of the durability test of the sealing strip. It is convenient to adjust the test pressure of the sealing strip, thereby ensuring the accuracy of the durability test of the sealing strip.

[0017] 3. The utility model achieves the effect of real-time monitoring of the closing pressure of the sealing strip by arranging a pressure sensor through a slot inside the support frame B near one side of the clamping frame, so as to solve the problems that the existing testing device cannot obtain the test pressure in time, cannot compare and understand the durability conditions of the window sealing strip, and cannot more accurately test the performance of the sealing strip, thereby improving the accuracy of the durability test of the automobile sealing strip. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the main structure of the utility model;

[0019] Figure 2 It is a cross-sectional structural schematic diagram of the utility model;

[0020] Figure 3 for Figure 2 The enlarged structural diagram of A;

[0021] Figure 4 for Figure 2 Schematic diagram of the enlarged structure of B.

[0022] 1. Test box; 2. Temperature control box; 3. Connecting frame; 4. Control box; 5. Box door; 6. Observation window; 7. Push rod; 8. Delivery pipe; 9. Heating wire; 10. Heating box; 11. Exhaust fan; 12. Connecting pipe; 13. Temperature sensor; 14. Support frame A; 15. Positioning plate; 16. Spring; 17. Support frame B; 18. Sliding rod; 19. Screw rod; 20. Moving plate; 21. Adjusting motor; 22. Test motor; 23. Cam; 24. Pressure sensor; 25. Sealing strip; 26. Clamping frame; 27. Semiconductor refrigerator; 28. Cooling plate; 29. ​​Cooling box; 30. Exhaust pipe. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the accompanying drawings and specific embodiments.

[0024] Embodiment 1: Figure 1 and Figure 2As shown, in order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a durability test device for automobile door and window sealing strips, comprising a test box 1 and a temperature control box 2, the temperature control box 2 is installed on the top of the test box 1, an exhaust fan 11 is installed at the bottom of the temperature control box 2, the output end of the exhaust fan 11 is connected to the top of the test box 1 through a conveying pipe 8, the input end of the exhaust fan 11 is connected to a cooling box 29 through a connecting pipe 12, a heating box 10 is installed in the middle of the conveying pipe 8, a heating wire 9 is installed inside the heating box 10, a temperature sensor 13 is installed on the top of the test box 1, the internal temperature of the test box 1 is sensed by the set temperature sensor 13, a box door 5 is installed on the front surface of the test box 1 through a hinge, and an observation window 6 is installed in the middle of the box door 5.

[0025] like Figure 4 As shown, a semiconductor refrigerator 27 is installed on one side of the cooling box 29 to cool the gas inside the cooling box 29, thereby cooling the inside of the test box 1. The cold end of the semiconductor refrigerator 27 is located inside the cooling box 29 and a cooling plate 28 is installed. The heat exchange area of ​​the cold end of the semiconductor refrigerator 27 is increased by the cooling plate 28, thereby improving the cooling efficiency of the airflow. The top of the cooling box 29 is connected to the top of the temperature control box 2 through an exhaust pipe 30.

[0026] The working principle of a durability test device for automobile door and window sealing strips based on Example 1 is as follows: after the utility model is installed, the box door 5 is opened, and the sealing strip 25 is clamped on the outer surface of the clamping frame 26. After completion, the box door 5 is closed, and the exhaust fan 11 is started. The external air is extracted through the exhaust fan 11 and the exhaust pipe 30 and then transported to the cooling box 29. Then the semiconductor refrigerator 27 is turned on. The intake air is cooled through the semiconductor refrigerator 27 and the cooling sheet 28. The cooled gas is transported to the inside of the test box 1 through the delivery pipe 8, and the internal temperature of the test box 1 is sensed by the temperature sensor 13. When the internal temperature of the test box 1 reaches the set value, the low-temperature durability test can be performed on the sealing strip 25. After the low-temperature test is completed, the exhaust fan 11 is started, and the external air is extracted through the exhaust fan 11 and the exhaust pipe 30, and then transported to the interior of the heating box 10 through the connecting pipe 12 and the conveying pipe 8. After the gas is heated by the heating wire 9 inside the heating box 10, the gas is transported to the interior of the test box 1 through the conveying pipe 8. After the temperature sensor 13 senses that the internal temperature of the test box 1 reaches the set value, the high-temperature test can be performed on the sealing strip 25. At this point, the working process of this equipment is completed.

[0027] Embodiment 2: as Figure 2 and Figure 3As shown, the utility model proposes a durability testing device for automobile door and window sealing strips. Compared with the first embodiment, this embodiment also includes: a support frame A14 is installed on one side of the bottom of the test box 1, a movable plate 20 is installed on the side of the bottom of the test box 1 close to the support frame A14, positioning plates 15 are installed on both sides of the top of the movable plate 20, a sliding rod 18 is installed in the middle of the positioning plates 15 on both sides, a support frame B17 is sleeved on the outer surface of the sliding rod 18, springs 16 are installed on both sides of the outer surface of the sliding rod 18 close to the support frame B17, and a sealing strip 25 is installed on the side adjacent to the support frame A14 and the support frame B17 through a clamping frame 26.

[0028] A pressure sensor 24 is installed through a card slot on one side of the support frame B17 near the clamping frame 26, and the test pressure is sensed by the set pressure sensor 24. A control box 4 is installed on one side of the test box 1 through the connecting frame 3. The control box 4 is electrically connected to the pressure sensor 24 to sense the pressure of the pressure sensor 24. A test motor 22 is installed on one side of the top of the movable plate 20, and a cam 23 is installed on the output shaft of the test motor 22. A push rod 7 is installed on one side of the support frame B17 near the cam 23. An adjustment motor 21 is installed on one side of the inside of the test box 1, and a screw 19 is installed on the output shaft of the adjustment motor 21. The screw 19 is sleeved in the inside of the movable plate 20.

[0029] In this embodiment, during the test, the adjusting motor 21 is started, the adjusting motor 21 drives the screw rod 19 to rotate, the screw rod 19 drives the movable plate 20 to move, the movable plate 20 drives the support frame B17 to move, and then the test motor 22 is started, the test motor 22 drives the cam 23 to rotate, the cam 23 squeezes the push rod 7, thereby driving the support frame B17 to move sideways, closing the sealing strips 25 on both sides, and the elasticity of the spring 16 drives the support frame B17 to reset, and at the same time, the pressure is sensed by the pressure sensor 24, and the sensing data is transmitted to the control box 4, and the pressure sensor 24 is recorded by the control box 4 to facilitate the subsequent observation of the test data of the sealing strip 25.

[0030] The above-mentioned specific embodiments are only several preferred embodiments of the present invention. Based on the technical solution of the present invention and the relevant inspiration of the above-mentioned embodiments, those skilled in the art can make various alternative improvements and combinations to the above-mentioned specific embodiments.

Claims

1. A durability test device for automobile door and window sealing strips, comprising a test box (1) and a temperature control box (2), characterized in that: A temperature control box (2) is installed on the top of the test box (1), an exhaust fan (11) is installed at the bottom of the temperature control box (2), the output end of the exhaust fan (11) is connected to the top of the test box (1) through a delivery pipe (8), the input end of the exhaust fan (11) is connected to a cooling box (29) through a connecting pipe (12), a heating box (10) is installed in the middle of the delivery pipe (8), a heating wire (9) is installed inside the heating box (10), and a temperature sensor (13) is installed at the top of the test box (1).

2. The durability testing device for automobile door and window sealing strips according to claim 1, characterized in that: A semiconductor refrigerator (27) is installed on one side of the cooling box (29); a cooling plate (28) is installed at the cold end of the semiconductor refrigerator (27) located inside the cooling box (29); and the top of the cooling box (29) is connected to the top of the temperature control box (2) via an exhaust pipe (30).

3. The durability testing device for automobile door and window sealing strips according to claim 1, characterized in that: The front surface of the test box (1) is provided with a box door (5) via hinges, and an observation window (6) is installed in the middle of the box door (5).

4. The durability testing device for automobile door and window sealing strips according to claim 1, characterized in that: A support frame A (14) is installed on one side of the bottom of the test box (1), and a movable plate (20) is installed on one side of the bottom of the test box (1) close to the support frame A (14).

5. The durability testing device for automobile door and window sealing strips according to claim 4, characterized in that: Positioning plates (15) are installed on both sides of the top of the movable plate (20), and sliding rods (18) are installed in the middle of the positioning plates (15) on both sides. The outer surface of the sliding rod (18) is sleeved with a support frame B (17), and springs (16) are installed on both sides of the outer surface of the sliding rod (18) close to the support frame B (17). A sealing strip (25) is installed on the side of the support frame A (14) adjacent to the support frame B (17) through a clamping frame (26).

6. The durability testing device for automobile door and window sealing strips according to claim 5, characterized in that: A pressure sensor (24) is installed on one side of the support frame B (17) close to the clamping frame (26) through a slot, and a control box (4) is installed on one side of the test box (1) through a connecting frame (3), and the control box (4) is electrically connected to the pressure sensor (24).

7. The durability testing device for automobile door and window sealing strips according to claim 5, characterized in that: A test motor (22) is mounted on one side of the top of the movable plate (20), a cam (23) is mounted on the output shaft of the test motor (22), and a push rod (7) is mounted on the side of the support frame B (17) close to the cam (23).

8. The durability testing device for automobile door and window sealing strips according to claim 4, characterized in that: An adjusting motor (21) is installed on one side of the interior of the test box (1), a screw rod (19) is installed on the output shaft of the adjusting motor (21), and the screw rod (19) is sleeved inside the moving plate (20).

Images