Sealing ring aging test device

Abstract

The utility model provides a seal ring aging test device, including testboard, test box, upper test tube, lower test tube, lift mechanism, gas transmission mechanism, electric heating tube and pressure detector, the test box is fixed on testboard, lower test tube is connected gas transmission mechanism, the top of lower test tube is equipped with the mounting groove that is used for mounting seal ring, and the pressure detector is equipped with the lifting mechanism. The upper test tube is arranged at the top of the lower test tube and connected with the lifting mechanism, the electric heating tubes are mounted on two sides of the inner wall of the test box, and the pressure detector is used for detecting air pressure in the lower test tube; the sealing ring in the test box is subjected to high-temperature aging through the electric heating pipe, the upper test pipe is driven by the lifting mechanism to move downwards, so that the upper test pipe and the lower test pipe are in butt joint, gas is input into the lower test pipe through the gas transmission mechanism, and the gas pressure in the lower test pipe can be checked through the pressure detector; therefore, the air tightness of the sealing ring after high-temperature aging is judged, and the aging performance of the sealing ring at different temperatures can be evaluated.

Description

Technical Field

[0001] The utility model relates to the field of sealing ring aging testing, in particular to a sealing ring aging testing device. Background Art

[0002] A sealing ring is an annular component used to fill gaps in structures to seal. It is widely used in various machines. Sealing rings are often used to seal the various components of a lamp housing to achieve waterproof performance. However, the sealing ring is made of silicone rubber, and the lamp generates a lot of heat, which will cause the sealing ring to age and become brittle at high temperatures and finally turn into powder, making the lamp waterproof ineffective and allowing water to enter. Therefore, the sealing ring of a lamp is an important indicator for measuring the waterproof reliability of the lamp housing, so it is necessary to perform an aging test on the sealing ring.

[0003] The Chinese invention patent with announcement number CN104048907A discloses a sealing ring aging test device, which performs a high-temperature aging test on the sealing ring through a high-temperature box. However, the above invention lacks a performance detection device for the sealing ring and cannot evaluate the aging performance of the sealing ring at different temperatures. Utility Model Content

[0004] 1. Technical issues to be resolved

[0005] In order to solve the above problems in the prior art, the utility model provides a sealing ring aging test device.

[0006] (II) Technical solution

[0007] In order to achieve the above-mentioned purpose, the main technical solutions adopted by the utility model include:

[0008] A sealing ring aging test device comprises a test bench, a test box, an upper test tube, a lower test tube, a lifting mechanism, a gas transmission mechanism, an electric heating tube and a pressure detector;

[0009] The test box is fixed on the test bench;

[0010] The lower test tube is installed at the bottom of the inner wall of the test box and connected to the gas transmission mechanism. The top of the lower test tube is provided with an installation groove for installing a sealing ring.

[0011] The upper test tube is arranged on the top of the lower test tube and is connected to the lifting mechanism;

[0012] The electric heating tubes are installed on both sides of the inner wall of the test box;

[0013] The pressure detector is used to detect the air pressure in the lower test tube.

[0014] Preferably, a butt joint pipe is provided at the bottom of the upper test tube, and the butt joint pipe moves downward under the drive of the lifting mechanism to fit with the lower test tube in a clearance.

[0015] Preferably, the lifting mechanism comprises an eccentric wheel, a spring, a guide tube, a guide rod, an upper connecting block, a lower connecting block and a motor;

[0016] The conduit is fixed to the top of the test box;

[0017] The guide rod is sleeved in the guide tube, and one end of the top of the guide rod is connected to the upper connecting block, and one end of the bottom of the guide rod is connected to the lower connecting block;

[0018] The spring is sleeved on the guide rod, one end of the spring is connected to the upper connecting block, and the other end of the spring is connected to the top opening of the conduit;

[0019] The eccentric wheel is arranged above the upper connecting block and connected to the motor;

[0020] The upper test tube is fixed on the bottom of the lower connecting block.

[0021] Preferably, the gas delivery mechanism includes an air pump and an air delivery pipe, the air pump is connected to the lower test pipe via the air delivery pipe, and the pressure detector is installed on the air delivery pipe.

[0022] Preferably, it further comprises a control mechanism, which comprises a temperature sensor, a timer and a single chip microcomputer, and the temperature sensor, the lifting mechanism and the gas transmission mechanism are all electrically connected to the single chip microcomputer.

[0023] (III) Beneficial effects

[0024] The beneficial effect of the utility model lies in: adopting the above technical scheme, the sealing ring to be tested is placed in the installation groove, the sealing ring in the test box is subjected to high-temperature aging through the electric heating tube, and then the upper test tube is driven to move downward by the lifting mechanism so that the upper test tube and the lower test tube are connected, and then gas is input into the lower test tube through the gas transmission mechanism, and the air pressure in the lower test tube can be checked by the pressure detector, so as to judge the air tightness of the sealing ring after high-temperature aging, which is conducive to evaluating the aging performance of the sealing ring at different temperatures. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a structural schematic diagram of a sealing ring aging test device;

[0026] Figure 2 This is a schematic diagram of the main structure of a sealing ring aging test device.

[0027] [Description of Reference Numerals]

[0028] 1. Test bench;

[0029] 2. Test box;

[0030] 3. Electric heating tube;

[0031] 4. Lifting mechanism;

[0032] 41. eccentric wheel; 42. upper connecting block; 43. guide tube; 44. guide rod; 45. lower connecting block;

[0033] 5. Put on the test tube;

[0034] 6. Butt joint;

[0035] 7. Lower the test tube;

[0036] 8. Pressure detector;

[0037] 9. Gas transmission mechanism;

[0038] 91. Gas pipeline; 92. Air pump;

[0039] 10. Temperature sensor. DETAILED DESCRIPTION

[0040] In order to better explain the present invention and facilitate understanding, the present invention is described in detail below through specific implementation modes in conjunction with the accompanying drawings.

[0041] Please refer to Figure 1 to Figure 2 The utility model provides a sealing ring aging test device, including a test bench 1, a test box 2, an upper test tube 5, a lower test tube 7, a lifting mechanism 4, a gas transmission mechanism 9, an electric heating tube 3 and a pressure detector 8;

[0042] The test box 2 is fixed on the test bench 1;

[0043] The lower test tube 7 is installed at the bottom of the inner wall of the test box 2 and connected to the gas delivery mechanism 9. The top of the lower test tube 7 is provided with an installation groove for installing a sealing ring;

[0044] The upper test tube 5 is arranged on the top of the lower test tube 7 and connected to the lifting mechanism 4;

[0045] The electric heating tubes 3 are installed on both sides of the inner wall of the test box 2;

[0046] The pressure detector 8 is used to detect the air pressure in the lower test tube 7;

[0047] When in use, the sealing ring to be tested is placed in the installation groove, and the sealing ring in the test box 2 is subjected to high-temperature aging through the electric heating tube 3. The upper test tube 5 is driven downward by the lifting mechanism 4 to dock the upper test tube 5 with the lower test tube 7. Gas is then input into the lower test tube 7 through the gas transmission mechanism 9. The air pressure in the lower test tube 7 can be checked through the pressure detector 8, thereby judging the air tightness of the sealing ring after high-temperature aging, which is beneficial to evaluating the aging performance of the sealing ring at different temperatures.

[0048] In this embodiment, a butt joint pipe 6 is provided at the bottom of the upper test tube 5 . The butt joint pipe 6 moves downward under the drive of the lifting mechanism 4 and is clearance-matched with the lower test tube 7 .

[0049] In this embodiment, the lifting mechanism 4 includes an eccentric wheel 41, a spring, a guide tube 43, a guide rod 44, an upper connecting block 42, a lower connecting block 45 and a motor;

[0050] The conduit 43 is fixed on the top of the test box 2;

[0051] The guide rod 44 is sleeved in the guide tube 43, and one end of the top of the guide rod 44 is connected to the upper connecting block 42, and one end of the bottom of the guide rod 44 is connected to the lower connecting block 45;

[0052] The eccentric wheel 41 is arranged above the upper connecting block 42 and is connected to the motor;

[0053] The upper test tube 5 is fixed to the bottom of the lower connecting block 45;

[0054] The spring is sleeved on the guide rod 44, one end of the spring is connected to the connecting block 42, and the other end of the spring is connected to the top opening of the guide tube 43;

[0055] When in use, the eccentric wheel 41 is driven to rotate by the motor. When the raised part of the eccentric wheel 41 contacts the upper connecting block 42, the upper connecting block 42 can be driven to move downward, thereby realizing the docking between the upper test tube 5 and the lower test tube 7. When the raised part of the eccentric wheel 41 is out of contact with the upper connecting block 42, the upper connecting block 42 is reset under the action of the spring.

[0056] In this embodiment, the gas delivery mechanism 9 includes an air pump 92 and an air delivery pipe 91 . The air pump 92 is connected to the lower test pipe 7 through the air delivery pipe 91 . The pressure detector 8 is installed on the air delivery pipe 91 . The air pump 92 delivers gas to the lower test pipe 7 through the air delivery pipe 91 .

[0057] In this embodiment, a control mechanism is also included, which includes a temperature sensor 10, a timer, and a single-chip microcomputer. The temperature sensor 10, the lifting mechanism 4, and the gas transmission mechanism 9 are all electrically connected to the single-chip microcomputer.

[0058] During use, when the temperature sensor 10 detects that the temperature in the test box 2 reaches the threshold, the timer starts timing. When the time of the timer returns to zero, the single-chip microcomputer drives the lifting mechanism 4 to start, so that the upper test tube 5 and the lower test tube 7 are connected, and then gas is input into the lower test tube 7 through the gas supply mechanism 9, thereby realizing the automation of detection.

[0059] The working principle of the utility model is as follows:

[0060] The sealing ring to be tested is placed in the installation groove, and the sealing ring in the test box 2 is subjected to high-temperature aging through the electric heating tube 3. The upper test tube 5 is driven downward by the lifting mechanism 4 to dock the upper test tube 5 with the lower test tube 7. Gas is then input into the lower test tube 7 through the gas transmission mechanism 9. The air pressure in the lower test tube 7 can be checked through the pressure detector 8, so as to judge the air tightness of the sealing ring after high-temperature aging, which is conducive to evaluating the aging performance of the sealing ring at different temperatures.

[0061] The circuits, electronic components and modules involved are all prior art and can be fully implemented by those skilled in the art. Needless to say, the content protected by this utility model does not involve improvements to software and methods.

[0062] The above are only embodiments of the present invention, and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the specification and drawings of the present invention, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

[0063] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A sealing ring aging test device, characterized in that: It includes a test bench, a test box, an upper test tube, a lower test tube, a lifting mechanism, a gas transmission mechanism, an electric heating tube and a pressure detector; The test box is fixed on the test bench; The lower test tube is installed at the bottom of the inner wall of the test box and connected to the gas transmission mechanism. The top of the lower test tube is provided with an installation groove for installing a sealing ring. The upper test tube is arranged on the top of the lower test tube and is connected to the lifting mechanism; The electric heating tubes are installed on both sides of the inner wall of the test box; The pressure detector is used to detect the air pressure in the lower test tube.

2. A sealing ring aging test device according to claim 1, characterized in that: A butt joint pipe is provided at the bottom of the upper test pipe. The butt joint pipe moves downward under the drive of the lifting mechanism and is gap-matched with the lower test pipe.

3. A sealing ring aging test device according to claim 1, characterized in that: The lifting mechanism comprises an eccentric wheel, a guide tube, a guide rod, a spring, an upper connecting block, a lower connecting block and a motor; The conduit is fixed to the top of the test box; The guide rod is sleeved in the guide tube, and one end of the top of the guide rod is connected to the upper connecting block, and one end of the bottom of the guide rod is connected to the lower connecting block; The spring is sleeved on the guide rod, one end of the spring is connected to the upper connecting block, and the other end of the spring is connected to the top opening of the conduit; The eccentric wheel is arranged above the upper connecting block and connected to the motor; The upper test tube is fixed on the bottom of the lower connecting block.

4. A sealing ring aging test device according to claim 1, characterized in that: The gas delivery mechanism includes an air pump and an air delivery pipe, the air pump is connected to the lower test pipe through the air delivery pipe, and the pressure detector is installed on the air delivery pipe.

5. The sealing ring aging test device according to claim 1, characterized in that: It also includes a control mechanism, which includes a temperature sensor, a timer and a single-chip microcomputer. The temperature sensor, the lifting mechanism and the gas transmission mechanism are all electrically connected to the single-chip microcomputer.

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