Test device

Abstract

The embodiment of the utility model provides test equipment. The test equipment comprises a base station; the ground simulation device is arranged on the base station and is used for being in contact with a tire with a hub motor; the lifting assembly comprises a fixed seat and a connecting rod, and the fixed seat is located above the ground simulation device and used for installing a to-be-tested tire; the connecting rod is arranged on the base table in the vertical direction, one end of the connecting rod is fixedly connected with the fixing base, the other end of the connecting rod is slidably connected with the base table, and the fixing base and the tire can drive the connecting rod to move towards the ground simulation device under the action of self weight so that the tire to be tested can abut against the ground simulation device. Through the arrangement, the connecting rod can drive the fixing seat and the tire with the hub motor to ascend and descend relative to the base station so as to provide a proper mounting space for the hub motor, and the hub motors of different specifications can be subjected to aging tests, so that the applicability is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to wheel hub motor test technical field especially is related to a test equipment. BACKGROUND

[0002] As a new type of electric drive system, wheel hub motors are widely used in electric vehicles and other mobile chassis. Wheel hub motors have the advantages of high efficiency, compact structure, fast response, and become an important part of many automation and electric drive systems. However, in the reliability and durability evaluation process of wheel hub motors, especially in the aging test, many challenges are faced.

[0003] In the existing test equipment, the installation space of the provided wheel hub motor is limited, which is difficult to adapt to the aging test of wheel hub motors of different specifications, and the applicability is poor. UTILITY MODEL CONTENT

[0004] The utility model aims at at least one of the technical problems existing in the prior art. Therefore, the utility model provides a test equipment which can adapt to the aging test of wheel hub motors of different specifications and has strong applicability.

[0005] The utility model embodiment provides a test equipment, test equipment includes: base station, ground simulation device, ground simulation device sets up on base station for with wheel hub motor tire contact, lifting assembly includes fixed seat and connecting rod, fixed seat is located above ground simulation device for installing the tire to be tested, connecting rod is set up on base station along vertical direction, one end of connecting rod is fixedly connected with fixed seat, and the other end is connected with base station sliding connection, fixed seat and tire can drive connecting rod to move towards ground simulation device under the action of self weight to make the tire to be tested and ground simulation device abut.

[0006] The test equipment provided by the utility model embodiment has at least the following beneficial effects:

[0007] One end of the connecting rod is fixedly connected with the fixed seat, and the other end is slidingly connected with the base station. The fixed seat and the tire with the wheel hub motor can drive the connecting rod to slide relative to the base station under the action of self weight and move towards the ground simulation device, so that the tire to be tested and the ground simulation device abut. The connecting rod can drive the fixed seat and the tire with the wheel hub motor to lift relative to the base station to provide a suitable installation space for the wheel hub motor. Wheel hub motors of different specifications can be tested for aging, thereby improving the applicability.

[0008] In an embodiment of the embodiment, the base station is provided with a guide structure, the guide structure is provided with a guide hole, and the connecting rod is slidingly matched with the guide hole.

[0009] In one embodiment of the implementation, the testing device comprises a limiting member, which is arranged on the connecting rod and can abut against the guide structure to limit the connecting rod from driving the fixing seat to descend relative to the base.

[0010] In one embodiment of the implementation, the guide structure, the connecting rod and the limiting member are all multiple and one-to-one corresponding, multiple connecting rods are respectively in sliding fit with corresponding guide holes, and multiple limiting members are respectively arranged on corresponding connecting rods.

[0011] In one embodiment of the implementation, the limiting member comprises a first connecting block, a second connecting block and a locking member, the first connecting block and the second connecting block are enclosed around the outer periphery of the connecting rod, and the locking member connects the first connecting block and the second connecting block to fix the first connecting block and the second connecting block relative to the connecting rod.

[0012] In one embodiment of the implementation, the guide structure comprises multiple guide blocks, multiple guide blocks are sequentially arranged along the extension direction of the connecting rod and are all provided with the guide hole, and the connecting rod is in sliding fit with multiple guide holes.

[0013] In one embodiment of the implementation, the fixing seat has a mounting surface facing the base, the mounting surface is provided with a mounting hole, the mounting surface is used for mounting the hub motor, and the mounting hole is used for allowing at least part of the hub motor to pass through.

[0014] In one embodiment of the implementation, the testing device comprises a fan, the fan is mounted on the top side of the fixing seat and is used for providing airflow passing through the hub motor.

[0015] In one embodiment of the implementation, the testing device comprises a connecting seat and a counterweight, the connecting seat is connected with the connecting rod, and the counterweight is arranged on the connecting seat.

[0016] In one embodiment of the implementation, the lifting assembly comprises a driver, the driver is mounted on the base and connected with the connecting rod, and the driver can drive the connecting rod to drive the fixing seat to ascend or descend relative to the base.

[0017] Additional aspects and advantages of the present application will be in part apparent and in part pointed out hereinafter. BRIEF DESCRIPTION OF DRAWINGS

[0018] The present application will be further described below in conjunction with the drawings and embodiments, wherein:

[0019] Figure 1 is a perspective structural schematic view of the test equipment under an embodiment of the utility model embodiment;

[0020] Figure 2 is Figure 1 a perspective structural schematic view of part of the test equipment;

[0021] Figure 3 is Figure 2 a perspective structural schematic view of part of the mounting device;

[0022] Figure 4 is Figure 2 a perspective structural schematic view of part of the mounting device from another angle;

[0023] Figure 5 is Figure 2 a sectional view structural schematic view of part of the mounting device;

[0024] Figure 6 is Figure 2 an exploded structural schematic view of the connecting rod and the limiting piece;

[0025] Figure 7 is Figure 2 a sectional view structural schematic view of the connecting rod and the limiting piece.

[0026] Reference signs:

[0027] Test equipment 1000, mounting device 100, base 10, guide structure 11, guide hole 111, first guide block 112, second guide block 113, convex ring 1121, first side plate 14, second side plate 15, lifting assembly 20, connecting rod 21, clamping groove 211, fixing seat 22, mounting surface 221, mounting hole 222, limiting piece 30, first connecting block 31, second connecting block 32, fan 40, counterweight 51, connecting seat 52, ground simulation device 200, ground simulation assembly 210, first pulley 2101, second pulley 2102, synchronous belt 2103, convex block 2104, brake 220, fan 230, wheel hub motor 300, speed reducer 310. DETAILED DESCRIPTION

[0028] The embodiments of the utility model are described in detail below, examples of the embodiments are shown in the drawings, wherein the same or similar reference signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0029] In the description of the utility model, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If the first, second is described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features or the order of the indicated technical features.

[0030] In the description of the utility model, if the meaning of several is more than one, the meaning of multiple is more than two, greater than, less than, more than and the like are understood as not including the number, above, below, within and the like are understood as including the number.If the first, second is described for the purpose of distinguishing technical features, it cannot be understood as indicating or implying relative importance of the indicated technical features or implicitly indicating the number of the indicated technical features or the order of the indicated technical features.

[0031] In the description of the utility model, unless otherwise explicitly limited, the words such as setting, installation, connection and the like should be understood broadly, and the person skilled in the art can determine the specific meaning of the above words in the utility model according to the specific content of the technical scheme.

[0032] In the description of the utility model, the description of the reference terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model.In the specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example.Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0033] Please refer to Figure 1 And Figure 2 , Figure 1 is a perspective structural schematic view of the test equipment 1000 under an embodiment of the utility model embodiment; Figure 2 is Figure 1 a perspective structural schematic view of part of the test equipment 1000.The utility model embodiment provides a kind of test equipment 1000, test equipment 1000 includes installation device 100 and ground simulation device 200, installation device 100 is used to install hub motor 300, ground simulation device 200 is used to contact with the tire with hub motor 300.Specifically, ground simulation device 200 is in abutment with the bottom side of tire, hub motor 300 drives tire to move along ground simulation device 200, to simulate road surface test.

[0034] The mounting device 100 in the test equipment 1000 provided by the embodiment of the utility model is described below.

[0035] Please refer to Figures 2 to 4 , Figure 3 is Figure 2 the partial perspective structural schematic view of the mounting device 100, Figure 4 is Figure 2 the partial perspective structural schematic of the mounting device 100 in another view. The embodiment of the utility model provides a mounting device 100, the mounting device 100 includes base 10 and lifting assembly 20. Base 10 is used to set up on the support surface. Lifting assembly 20 includes connecting rod 21 and fixed seat 22, fixed seat 22 is located above ground simulation device 200, is used to install the tire to be tested. Connecting rod 21 is set up on base 10 along the vertical direction, one end of connecting rod 21 is fixedly connected with fixed seat 22, the other end of connecting rod 21 is slidably connected with base 10, fixed seat 22 can drive connecting rod 21 to move towards ground simulation device 200 under the action of self-weight with the tire, so that the tire to be tested and ground simulation device 200 abut.

[0036] Specifically, base 10 is set on the ground, the surface of other equipment and other support surfaces. The hub motor 300 is installed on the bottom side of the fixed seat 22, the hub motor 300 is arranged on the rotating wheel, the rotating wheel is sleeved with the tire, the hub motor 300 can drive the rotating wheel to rotate the tire, the bottom side of the tire abuts against the ground simulation device 200 to simulate walking on the ground. The connecting rod 21 is arranged on the bottom side of the fixed seat 22 and fixedly connected with the fixed seat 22 by screws. It can be understood that the connecting rod 21 and the fixed seat 22 move synchronously, the fixed seat 22 can slide relative to the base 10 along with the connecting rod 21, so that the distance between the fixed seat 22 and the base 10 can be adjusted according to the specifications of the hub motor 300 to meet the installation requirements of hub motors 300 of different specifications. For example, when the aging test of a larger size hub motor 300 is needed, the fixed seat 22 can be lifted relative to the base 10 by the connecting rod 21 to increase the distance between the fixed seat 22 and the base 10, so as to adapt to the large size hub motor 300. When the aging test of a smaller size hub motor 300 is needed, the fixed seat 22 can be lowered relative to the base 10 by the connecting rod 21 to reduce the distance between the fixed seat 22 and the base 10, so as to adapt to the small size hub motor 300.

[0037] One end of the connecting rod 21 is fixedly connected with the fixing base 22, and the other end of the connecting rod 21 is slidably connected with the base 10. The fixing base 22 and the tire can be driven to move towards the ground simulation device 200 under the action of the self weight, so that the tire to be tested abuts against the ground simulation device 200. The connecting rod 21 can drive the fixing base 22 and the in-wheel motor 300 to ascend or descend relative to the base 10, so as to provide a suitable installation space for the in-wheel motor 300. Different specifications of in-wheel motors 300 can be subjected to the aging test, thereby improving the applicability.

[0038] In an embodiment of this embodiment, please refer to Figure 3 and Figure 5 , Figure 5 is Figure 2 a sectional view of the mounting device 100. The base 10 is provided with a guide structure 11, and the guide structure 11 is provided with a guide hole 111. The connecting rod 21 is slidably connected with the guide hole 111. In this way, the movement accuracy of the fixing base 22 and the in-wheel motor 300 can be improved, so as to improve the test accuracy.

[0039] Specifically, the extension direction of the guide hole 111 is vertical, and the connecting rod 21 can slide along the guide hole 111 to drive the fixing base 22 to ascend or descend in the vertical direction.

[0040] In an embodiment of this embodiment, please refer to Figure 3 The mounting device 100 comprises a limiting piece 30, which is arranged on the connecting rod 21 and can abut against the guide structure 11 to limit the connecting rod 21 from driving the fixing base 22 to descend relative to the base 10. It can be understood that the presence of the limiting piece 30 can prevent the fixing base 22 from being dropped to the bottom and reduce the risk of damage to the equipment.

[0041] In this embodiment, the limiting piece 30 is annular and is arranged on the outer periphery of the connecting rod 21. The limiting piece 30 is axially fixed with the connecting rod 21. When the connecting rod 21 descends by a certain distance along the guide hole 111, the limiting piece 30 abuts against the top side of the guide structure 11, and the connecting rod 21 cannot drive the fixing base 22 to continue to descend, thereby achieving the limiting purpose.

[0042] In other embodiments, the limiting piece 30 can also be configured as a pin. The connecting rod 21 is provided with a radially extending pin hole, and the pin is arranged in the pin hole and at least one end of the pin extends out of the pin hole. When the connecting rod 21 descends by a certain distance along the guide hole 111, the end of the pin abuts against the top side of the guide structure 11, and the connecting rod 21 cannot drive the fixing base 22 to continue to descend, thereby achieving the limiting purpose.

[0043] In an embodiment of this embodiment, please refer to Figure 3 and Figure 6 , Figure 6is Figure 2 An exploded view of the connecting rod 21 and the limiting member 30. The limiting member 30 includes a first connecting block 31, a second connecting block 32, and a locking member (not shown). The first connecting block 31 and the second connecting block 32 enclose the outer periphery of the connecting rod 21. The locking member connects the first connecting block 31 and the second connecting block 32 to fix the first connecting block 31 and the second connecting block 32 relative to the connecting rod 21. In this way, the connecting rod 21 and the limiting member 30 are easy to install, and the limiting member 30 can fully abut against the guide structure 11 to limit the connecting rod 21 and the fixing seat 22.

[0044] In this embodiment, please refer to Figure 7 , Figure 7 is Figure 2 A cross-sectional view of the connecting rod 21 and the limiting member 30. The first connecting block 31 and the second connecting block 32 are both semi-annular, and the first connecting block 31 and the second connecting block 32 enclose the outer periphery of the connecting rod 21 to form a ring buckle. The connecting rod 21 is provided with a clamping groove 211, and the first connecting block 31 and the second connecting block 32 are clamped in the clamping groove 211, respectively. The locking member connects the first connecting block 31 and the second connecting block 32, so that the first connecting block 31 and the second connecting block 32 are respectively abutted against the inner wall of the clamping groove 211, thereby achieving the axial fixation of the limiting member 30 and the connecting rod 21.

[0045] It can be understood that in this embodiment, the locking member is configured as a screw, one end of the screw abuts against the second connecting block 32, and the other end of the screw passes through the second connecting block 32 and threadedly cooperates with the first connecting block 31, thereby achieving the fixed connection of the first connecting block 31 and the second connecting block 32. In other embodiments, the locking member can also be configured as a pin, a bolt, a plunger pin, or the like.

[0046] In one embodiment of this implementation, please refer to Figure 3 The number of the guide structure 11, the connecting rod 21, and the limiting member 30 is multiple and one-to-one correspondence. The multiple connecting rods 21 are respectively slidably matched with the corresponding guide holes 111, and the multiple limiting members 30 are respectively arranged on the corresponding connecting rods 21. In this way, the movement accuracy of the fixing seat 22 and the wheel hub motor 300 can be further improved, and the accuracy of the test can be improved. At the same time, the multiple limiting members 30 can respectively abut against the multiple guide structures 11, which can better prevent the occurrence of the bottoming-out condition and further improve the safety.

[0047] In this embodiment, the top surfaces of the multiple guide structures 11 are coplanar and parallel to the horizontal plane, and the multiple limiting members 30 are located on the same horizontal plane, so that the multiple limiting members 30 can simultaneously abut against the multiple guide structures 11 during the descending process of the connecting rod 21 along the guide hole 111, and the impact force of the bottoming-out can be better buffered.

[0048] In this embodiment, the number of the guide structures 11, the connecting rods 21 and the limiters 30 is four. In other embodiments, the number of the guide structures 11, the connecting rods 21 and the limiters 30 can be three, five or other numbers.

[0049] In an embodiment of this implementation, referring to Figure 3 , the guide structure 11 includes a plurality of guide blocks, the plurality of guide blocks are sequentially arranged along the extension direction of the connecting rod 21, and each of the plurality of guide blocks is provided with a guide hole 111, and the connecting rod 21 is in sliding fit with the plurality of guide holes 111. In this way, the movement accuracy of the fixing seat 22 and the wheel hub motor 300 can be further improved.

[0050] In this embodiment, the plurality of guide blocks includes a first guide block 112 and a second guide block 113, the first guide block 112 is located on the top side of the second guide block 113, and the top side of the first guide block 112 is provided with a convex ring 1121. The convex ring 1121, the first guide block 112 and the second guide block 113 are each provided with a guide hole 111. The top surface of the convex ring 1121 can abut against the limiter 30 to limit the lowering of the connecting rod 21.

[0051] In an embodiment of this implementation, referring to Figure 3 and Figure 4 , the fixing seat 22 has a mounting surface 221 facing the base 10, the mounting surface 221 is provided with a mounting hole 222, the mounting surface 221 is used for mounting the wheel hub motor 300, and the mounting hole 222 is used for allowing at least part of the wheel hub motor 300 to pass through. In this way, the mounting hole 222 can avoid part of the wheel hub motor 300, which is conducive to reducing the volume of the mounting device 100, and at the same time, facilitates heat dissipation of the wheel hub motor 300, and is conducive to improving the reliability of the test.

[0052] In an embodiment of this implementation, referring to Figures 2 to 4 , the mounting device 100 includes a fan 40, the fan 40 is mounted on the top side of the fixing seat 22 and is used for providing airflow through the wheel hub motor 300. Specifically, the reducer 310 in the wheel hub motor 300 is accommodated in the mounting hole 222, and the fan 40 can dissipate heat for the reducer 310. In this way, the heat dissipation rate of the wheel hub motor 300 can be improved, which is conducive to ensuring that the test can be carried out smoothly.

[0053] In an embodiment of this implementation, referring to Figure 3 , the mounting device 100 includes a counterweight 51 and a connecting seat 52, the connecting seat 52 is connected with the connecting rod 21, and the counterweight 51 is arranged on the connecting seat 52. In this way, the vehicle frame load can be simulated by the counterweight 51, thereby improving the reliability of the test.

[0054] In the embodiment, the top end of the connecting rod 21 is connected and fixed with the fixing base 22, the bottom end of the connecting rod 21 is connected and fixed with the connecting base 52, the number of the counterweight blocks 51 is multiple, and the multiple counterweight blocks 51 are placed on the connecting base 52, so that the load simulation is realized.

[0055] In one embodiment of the embodiment, referring to Figure 3 The lifting assembly 20 comprises a driver (not shown) which is installed on the base 10 and connected with the connecting rod 21, and the driver can drive the connecting rod 21 to drive the fixing base 22 to ascend and descend relative to the base 10. Specifically, the driver can be selected from electric cylinders, air cylinders, hydraulic cylinders, motors and the like. By arranging the driver, the driver can drive the connecting rod 21 to drive the fixing base 22 to ascend and descend, so as to facilitate the test and disassembly of the hub motor 300. It can be understood that, on the one hand, the driver can drive the connecting rod 21 to drive the fixing base 22 to ascend, so that the fixing base 22 has enough distance from the base 10, so as to facilitate the disassembly of the hub motor 300. On the other hand, the driver can drive the connecting rod 21 to drive the fixing base 22 to descend, so as to provide the hub motor 300 with a load required for test, so as to improve the reliability of the test.

[0056] The ground simulation device 200 provided by the test equipment 1000 of the embodiment of the utility model is described below.

[0057] Referring to Figure 2 The ground simulation device 200 comprises a ground simulation assembly 210, a brake 220 and a fan 230. The ground simulation assembly 210 comprises a first pulley 2101, a second pulley 2102 and a synchronous belt 2103. The base 10 is provided with a first side plate 14 and a second side plate 15 which are oppositely spaced. The first pulley 2101 and the second pulley 2102 are both arranged between the first side plate 14 and the second side plate 15, and the two ends of the first pulley 2101 are rotatably connected with the first side plate 14 and the second side plate 15 respectively, and the two ends of the second pulley 2102 are rotatably connected with the first side plate 14 and the second side plate 15 respectively. The synchronous belt 2103 is sleeved on the first pulley 2101 and the second pulley 2102, so as to move synchronously with the first pulley 2101 and the second pulley 2102. The synchronous belt 2103 is used for supporting the tire, so as to simulate the ground test. The brake 220 is connected with the first pulley 2101, so as to apply a braking torque to the first pulley 2101, so as to simulate the walking resistance required for test, and improve the reliability of the test.

[0058] In the embodiment, the brake 220 is connected with the first pulley 2101 and hinders the rotation of the first pulley 2101 in the form of magnetic force. When it is not needed to provide friction resistance, the brake 220 can cut off the magnetic force. In other embodiments, the brake 220 abuts against the end surface of the first pulley 2101 to provide friction resistance when the first pulley 2101 rotates. When it is not needed to provide friction resistance, the brake 220 is separated from the end surface of the first pulley 2101. In other embodiments, the number of the brake 220 is two, and the two brakes 220 are connected with the first pulley 2101 and the second pulley 2102 respectively to provide resistance to the first pulley 2101 and the second pulley 2102 respectively, so that the first pulley 2101 and the second pulley 2102 are uniformly stressed, which is beneficial to the smooth movement of the synchronous belt 2103.

[0059] In the embodiment, the ground simulation assembly 210 includes a plurality of protrusions 2104 arranged on the surface of the synchronous belt 2103, and the plurality of protrusions 2104 are arranged at intervals along the movement direction of the synchronous belt 2103. The protrusions 2104 can collide with the tire to simulate bumps, further improving the reliability of the test.

[0060] In the embodiment, please refer to Figure 3 A part of the guide structures 11 are fixed on the first side plate 14 by screws, and the other part are fixed on the second side plate 15 by screws, so as to realize the installation of the guide structures 11 and the base 10.

[0061] The embodiments of the utility model are described in detail above in combination with the drawings, but the utility model is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge range possessed by the ordinary skilled in the art without departing from the purpose of the utility model. In addition, the embodiments and the features in the embodiments of the utility model can be combined with each other without conflict.

Claims

1. A test apparatus, characterized by, The utility model relates to a test equipment for hub motor, which comprises: a base; a ground simulation device arranged on the base for contacting with a tire with a hub motor; a lifting assembly comprising a fixing seat and a connecting rod, the fixing seat is located above the ground simulation device for mounting the tire to be tested; the connecting rod is arranged on the base in a vertical direction, one end of the connecting rod is fixedly connected with the fixing seat, the other end is slidingly connected with the base, the fixing seat and the tire can drive the connecting rod to move towards the ground simulation device under the action of gravity, so that the tire to be tested abuts against the ground simulation device.

2. The test apparatus of claim 1, wherein, The base is provided with a guide structure, the guide structure is provided with a guide hole, the connecting rod and the guide hole are slidingly matched.

3. The test apparatus of claim 2, wherein, The test equipment comprises a limiting piece arranged on the connecting rod and abutting against the guide structure to limit the connecting rod from driving the fixing seat to descend relative to the base.

4. The test apparatus of claim 3, wherein, The number of the guide structure, the connecting rod and the limiting piece is multiple and one-to-one correspondence, multiple connecting rods are respectively slidingly matched with corresponding guide holes, and multiple limiting pieces are respectively arranged on corresponding connecting rods.

5. The test apparatus of claim 3, wherein, The limiting piece comprises a first connecting block, a second connecting block and a locking piece, the first connecting block and the second connecting block enclose the outer periphery of the connecting rod, and the locking piece connects the first connecting block and the second connecting block to fix the first connecting block and the second connecting block relative to the connecting rod.

6. The test apparatus of claim 2, wherein, The guide structure comprises multiple guide blocks, multiple guide blocks are sequentially arranged along the extension direction of the connecting rod and are all provided with the guide hole, and the connecting rod and multiple guide holes are slidingly matched.

7. The test apparatus of claim 1, wherein The fixing seat has a mounting surface towards the base, the mounting surface is provided with a mounting hole, the mounting surface is used for mounting the hub motor, and the mounting hole is used for allowing at least part of the hub motor to pass through.

8. The test apparatus of claim 7, wherein, The test equipment comprises a fan, the fan is mounted on the top side of the fixing seat and is used for providing airflow through the hub motor.

9. The test apparatus of claim 1, wherein, The test equipment comprises a connecting seat and a counterweight, the connecting seat is connected with the connecting rod, and the counterweight is arranged on the connecting seat.

10. The test apparatus of claim 1, wherein, The lifting assembly comprises a driver, the driver is mounted on the base and connected with the connecting rod, and the driver can drive the connecting rod to drive the fixing seat to ascend or descend relative to the base.

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