A durability test tester for an automobile weather strip

Abstract

The utility model provides a kind of durability test testing machine of automobile sealing strip, it belongs to automobile sealing strip durability test technical field, it includes fixed frame and fixed plate, the top of the fixed frame is fixedly connected with fixed plate, the top of the fixed plate is fixedly connected with shelter frame.The utility model adds temperature table, semiconductor refrigeration piece cold end and electric heating tube by fixed plate, temperature table detects the temperature of the environment where the sealing strip to be tested is located, when it is needed to test sealing strip in low-temperature environment, semiconductor refrigeration piece cold end absorbs heat, when it is needed to test sealing strip in high-temperature environment, resistance wire inside electric heating tube continuously delivers heat to the inside of sealing strip via electrothermal effect, and then the test effect of testing machine is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive sealing strip durability testing technology, and in particular relates to a durability testing machine for automotive sealing strips. Background Technology

[0002] As a commonly used modern connecting component, automotive sealing strips primarily function to be installed at the connection points between car doors and the chassis to ensure a tight seal during vehicle use. However, existing automotive sealing strips often become worn out due to variations in material durability, thus affecting their lifespan. Therefore, during the production process of automotive sealing strips, durability tests are frequently conducted to confirm their lifespan and assist staff in identifying any changes to the sealing strip's composition.

[0003] In existing technologies, such as patent publication number CN218121651U, a durability testing machine for automotive sealing strips addresses the problem of instability and reduced testing efficiency caused by the clamping and fixing operation of conventional automotive sealing strip durability testing machines. The proposed solution includes a base box and a test plate. A test platform and frame are fixedly installed on the top of the base box. The top of the frame has a mounting hole, within which a cylinder is fixedly installed. A connecting plate is fixedly connected to the output end of the cylinder. The top of the test plate has a connecting groove, and square grooves are formed on both sides of the connecting plate. Square plates are slidably installed within these grooves. A clamping plate and a push plate are fixedly installed on the opposite sides of the two square plates. The connecting plate is movably inserted into the connecting groove. This invention, through the cooperation of a lead screw, vertical plate, U-shaped plate, and clamping plate, achieves automatic clamping of automotive sealing strips, improving testing efficiency.

[0004] Existing automotive sealing strip durability testing machines lack temperature adjustment components, making it impossible to adjust the temperature of the sealing strip under test according to usage requirements. Consequently, they cannot test sealing strips at different temperatures, thus affecting the testing results. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A durability testing machine for automotive sealing strips includes a fixed frame and a fixed plate. The fixed plate is fixedly connected to the top of the fixed frame, and a shielding frame is fixedly connected to the top of the fixed plate. A lifting frame is fixedly connected to the back of the fixed frame. An electric telescopic rod is connected through the top of the lifting frame. A connecting plate is fixedly connected to the tail end of the electric telescopic rod. A shock absorber is fixedly connected to the bottom of the connecting plate, and a pressure plate is fixedly connected to the bottom of four shock absorbers.

[0007] Preferably, a control screen is fixedly connected to the front of the fixed frame.

[0008] Preferably, a thermometer is fixedly connected to the front side of the fixing plate.

[0009] Preferably, the top of the fixing frame is inlaid with the cold end of a semiconductor refrigeration chip.

[0010] Preferably, an electric heating tube is arranged inside the inner wall of the fixing plate.

[0011] Preferably, the inner wall of the fixed frame is provided with a heat insulation layer.

[0012] Preferably, a heat-conducting plate is fixedly connected to the inner side of the fixed frame, and a hot end of a semiconductor cooling chip is fixedly connected to the front side of the heat-conducting plate.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] This invention adds a thermometer, a cold end of a thermoelectric cooler, and a heating element. The thermometer detects the temperature of the environment where the sealing strip to be tested is located. When the sealing strip needs to be tested in a low-temperature environment, electrical energy can be delivered to the cold end of the thermoelectric cooler via an external control component. At this time, the cold end of the thermoelectric cooler absorbs heat. When the sealing strip needs to be tested in a high-temperature environment, electrical energy can be delivered to the inside of the heating element via a control panel. At this time, the resistance wire inside the heating element continuously delivers heat to the inside of the sealing strip through the electrothermal effect, thereby improving the testing effect of the testing machine. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a durability testing machine for automotive sealing strips proposed in this utility model;

[0016] Figure 2 This is a schematic diagram of the connection part of the hoisting frame proposed in this utility model;

[0017] Figure 3 This is a cross-sectional view of the connecting part of the fixed frame proposed in this utility model;

[0018] Figure 4 This is a cross-sectional view of the connecting part of the fixing plate proposed in this utility model.

[0019] In the diagram: 1. Fixed frame; 2. Fixed plate; 3. Shielding frame; 4. Hoisting frame; 5. Electric telescopic rod; 6. Connecting plate; 7. Shock absorber; 8. Pressure plate; 9. Control panel; 10. Thermometer; 11. Cold end of thermoelectric cooler; 12. Heating tube; 13. Insulation layer; 14. Heat-conducting plate; 15. Hot end of thermoelectric cooler. Detailed Implementation

[0020] The technical solution of this utility model will be further described below with reference to the accompanying drawings and embodiments.

[0021] Reference Figures 1-4A durability testing machine for automotive sealing strips includes a fixed frame 1 and a fixed plate 2. The fixed plate 2 is fixedly connected to the top of the fixed frame 1. The fixed frame 1 provides fixing points for the fixed plate 2, the lifting frame 4, the control panel 9, the cold end of the semiconductor refrigeration chip 11, the heat insulation layer 13, and the heat-conducting plate 14, which are fixedly connected to its outer surface. The fixed plate 2 is fixedly connected to the top of the fixed frame 1, providing support for the top of the automotive sealing strip and providing fixing points for the shielding frame 3 and the heating tube 12, which are fixedly connected to its outer surface and interior. The shielding frame 3 is fixedly connected to the top of the fixed plate 2, providing shielding for the top of the fixed plate 2 and preventing the automotive sealing strip from falling to the outside of the fixed plate 2 during the test. A lifting frame 4 is fixedly connected to the back of the fixed frame 1. The lifting frame 4 is fixedly connected to the back of the fixed frame 1, providing a fixing point for the electric telescopic rod 5 that is connected through to its top. The electric telescopic rod 5 is connected through to the top of the lifting frame 4. When electrical energy is transmitted to the interior of the electric telescopic rod 5 via the control panel 9, the electric telescopic rod 5 drives the pressure plate 8 indirectly connected to its tail end to move downward. A connecting plate 6 is fixedly connected to the tail end of the electric telescopic rod 5, providing a fixing point for the shock absorber 7 fixedly connected to its bottom. The shock absorber 7 is fixedly connected to the bottom of the connecting plate 6, providing a fixing point for the pressure plate 8 fixedly connected to its bottom. When When the reaction force is transmitted to the inside of the shock absorber 7, the shock absorber 7 partially absorbs the impact force, improves the structural strength of the pressurizing component, and thus improves the service life of the testing machine. Pressure plates 8 are fixedly connected to the bottom of the four shock absorbers 7. Driven by the electric telescopic rod 5, the pressure plates 8 move downwards, applying pressure to the external automotive sealing strip to perform a pressure durability test on the sealing strip. A control panel 9 is fixedly connected to the front of the fixed frame 1. When a durability test of the automotive sealing strip is required, electrical energy can be transmitted to the inside of the electric telescopic rod 5 via the control panel 9. When a low-temperature durability test of the automotive sealing strip is required, electrical energy can be transmitted to the cold end of the semiconductor refrigeration chip via the control panel 9. Inside 11, when a high-temperature durability test is required on the automotive sealing strip, electrical energy can be transmitted to the interior of the heating tube 12 via the control panel 9. A heat insulation layer 13 is arranged inside the inner wall of the fixed frame 1. The heat insulation layer 13 is arranged inside the inner wall of the fixed frame 1 to block heat from being conducted to the top of the fixed plate 2 via the fixed plate 2. A heat conduction plate 14 is fixedly connected to the inner side of the fixed frame 1. The heat conduction plate 14 is fixedly connected to the inner side of the fixed frame 1. Through the grooves on the surface, the heat dissipation effect of the hot end 15 of the semiconductor cooling chip is improved. The hot end 15 of the semiconductor cooling chip is fixedly connected to the front side of the heat conduction plate 14. When electrical energy and heat are conducted to the interior of the hot end 15 of the semiconductor cooling chip, the hot end 15 of the semiconductor cooling chip conducts heat to the external environment.

[0022] Reference Figure 1 , Figure 3and Figure 4 A thermometer 10 is fixedly connected to the front of the fixing plate 2. The thermometer 10 is fixedly connected to the front of the fixing plate 2 to detect the temperature of the fixing plate 2 and display the detection data to help the staff confirm the temperature of the car sealing strip. A semiconductor cooling chip cold end 11 is embedded in the top of the fixing frame 1. When electrical energy is transmitted to the interior of the semiconductor cooling chip cold end 11 through the control panel 9, the semiconductor cooling chip cold end 11 absorbs the heat inside the fixing plate 2. An electric heating tube 12 is arranged inside the inner wall of the fixing plate 2. When electrical energy is transmitted to the interior of the electric heating tube 12 through the control panel 9, the resistance wire inside the electric heating tube 12 continuously transmits heat to the interior of the fixing plate 2 through the electrothermal effect, and conducts the heat to the interior of the car sealing strip.

[0023] The functional principle of this utility model can be explained by the following operation: First, the rubber sealing strip is moved to the top of the fixed plate 2 by external force. Then, the power supply is connected, and the power is transmitted to the inside of the electric telescopic rod 5 through the control panel 9. At this time, the electric telescopic rod 5 extends, driving the pressure plate 8 connected to its tail end to move downward. The pressure plate 8 continuously generates pressure on the external car sealing strip, and performs a pressure durability test on the car sealing strip, thereby determining the service life of the car sealing strip.

[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of this utility model without departing from the spirit and scope of the technical solutions of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. A durability test tester for an automobile weather strip comprising a fixed frame (1) and a fixed plate (2), characterized in that, A fixing plate (2) is fixedly connected to the top of the fixing frame (1), a shielding frame (3) is fixedly connected to the top of the fixing plate (2), a hoisting frame (4) is fixedly connected to the back of the fixing frame (1), an electric telescopic rod (5) is connected through the top of the hoisting frame (4), a connecting plate (6) is fixedly connected to the tail end of the electric telescopic rod (5), a shock absorber (7) is fixedly connected to the bottom of the connecting plate (6), and a pressure plate (8) is fixedly connected to the bottom of the four shock absorbers (7).

2. The durability test tester for a weather strip of an automobile according to claim 1, wherein The control screen (9) is fixedly connected to the front of the fixed frame (1).

3. The durability test tester for a weather strip of an automobile according to claim 1, wherein A thermometer (10) is fixedly connected to the front of the fixing plate (2).

4. The durability test tester for a weather strip of an automobile according to claim 1, wherein The top of the fixed frame (1) is inlaid with the cold end (11) of the semiconductor refrigeration chip.

5. The durability test tester for a weather strip of an automobile according to claim 1, wherein The inner wall of the fixing plate (2) is provided with an electric heating tube (12).

6. The durability test tester for a weather strip of an automobile according to claim 1, wherein The inner wall of the fixed frame (1) is provided with a heat insulation layer (13).

7. The durability test tester for a weather strip of an automobile according to claim 1, wherein A heat-conducting plate (14) is fixedly connected to the inner side of the fixed frame (1), and a semiconductor cooling chip hot end (15) is fixedly connected to the front side of the heat-conducting plate (14).

Images