A pipeline verification test device

Abstract

The present invention provides a pipeline verification test device, which relates to the field of pipeline verification technology. The test device includes: a support portion having a support rod; a movable assembly mounted on the support rod and movable relative to the support rod; a first positioning member for fixing the pipeline and connected to the movable assembly; and a second positioning member connected to the movable assembly and capable of adjusting the bending angle of the pipeline in its extension direction. The provision of the second positioning member allows for better adjustment of the pipeline's bending angle, thereby ensuring test accuracy while reducing test costs and shortening verification cycles.

Description

Technical Field

[0001] The present invention relates to the technical field of pipeline verification, and in particular to a pipeline verification test device. Background Art

[0002] After the design of an automotive pipeline is completed, the pipeline's performance needs to be verified. Currently, the verification of automotive pipeline design schemes is mainly divided into two stages. In the first stage, simulation analysis is performed through software; in the second stage, samples are produced for testing. However, the samples are not malleable, and the samples need to be remade when the scheme is optimized, resulting in a long verification cycle, which increases the testing cost and affects the overall development progress of the vehicle. Summary of the Invention

[0003] The present invention provides a pipeline verification test device to solve the problem of how to reduce the test cost and shorten the verification cycle under the premise of ensuring the test accuracy.

[0004] An embodiment of the present invention provides a pipeline verification test device, which includes: a support portion having a support rod; a movable component installed on the support rod and capable of moving relative to the support rod; a first positioning member for fixing the pipeline and connected to the movable component; and a second positioning member connected to the movable component and capable of adjusting the bending angle of the extension direction of the pipeline.

[0005] Furthermore, the first positioning member includes a clamping portion, which is connected to the movable component; the second positioning member includes a sleeve with adjustable shape, which is connected to the movable component.

[0006] Furthermore, the sleeve is a bellows.

[0007] Furthermore, the second positioning member includes the clamping portion, and the clamping portion can be used to clamp the sleeve.

[0008] Furthermore, a plurality of the first positioning members are adjacent to the second positioning members.

[0009] Furthermore, the movable component includes: a first movable component, which is installed on the support rod and can rotate around the support rod and move along the extension direction of the support rod; a second movable component, which is installed on the first movable component and can rotate around the first movable component and move along the extension direction of the first movable component.

[0010] Furthermore, the first movable component includes: a first sliding sleeve, installed on the support rod, capable of rotating around the support rod and moving along the extension direction of the support rod; a first sliding rod, fixed on the first sliding sleeve and connected to the second movable component; a first fixing member, used to fix the first sliding sleeve to the support rod.

[0011] Furthermore, the second movable component includes: a second sliding sleeve, installed on the first sliding rod, capable of rotating around the first sliding rod and moving along the extension direction of the first sliding rod; a second sliding rod, fixed on the second sliding sleeve, and connected to the first positioning member or the second positioning member; a second fixing member, used to fix the second sliding sleeve on the first sliding rod.

[0012] Furthermore, the support portion includes a base, and the base is fixedly connected to the support rod.

[0013] Furthermore, the support portion further includes a bottom wheel, and the bottom wheel is fixed below the base.

[0014] An embodiment of the present invention provides a pipeline verification test device, which includes: a support part, a movable component, a first positioning member and a second positioning member. The movable component drives the first positioning member and the second positioning member to move to their respective corresponding positions, and the pipeline is fixed by the first positioning member and the second positioning member respectively, so that the shape of the pipeline after fixation is the same as the shape of the designed pipeline, thereby conducting a verification test of the pipeline flowability. When the scheme is optimized, it is only necessary to adjust the fixed positions of the first positioning member and the second positioning member to change the shape of the simulated pipeline, thereby reducing the test cost and shortening the verification cycle. At the same time, in order to further improve the test accuracy, the second positioning member can be deformed along the extension direction of the pipeline compared to the first positioning member, and can adjust the bending angle of the pipeline. According to the shape of the design pipeline bend, the second positioning member can be adjusted to the corresponding bending angle, and the pipeline can be fixed by the second positioning member to make the pipeline have the same bending angle, thereby ensuring that the simulation scene is closer to the actual use scene, improving the test accuracy and avoiding the problem of mutual interference caused by the need to set multiple positioning members due to pipeline bending. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 A schematic structural diagram of a pipeline verification test device provided by an embodiment of the present invention;

[0016] Figure 2 A schematic structural diagram of another pipeline verification test device provided by an embodiment of the present invention;

[0017] Figure 3 A schematic structural diagram of another pipeline verification test device provided by an embodiment of the present invention;

[0018] Figure 4 A schematic structural diagram of a first positioning member of a verification test device provided in an embodiment of the present invention;

[0019] Figure 5 A schematic structural diagram of a second positioning member of a verification test device provided in an embodiment of the present invention;

[0020] Figure 6 A schematic structural diagram of a first movable component of a verification test device provided in an embodiment of the present invention;

[0021] Figure 7 A schematic structural diagram of the second movable component of the verification test device provided in an embodiment of the present invention.

[0022] Description of Reference Numerals

[0023] 1. Test device; 10. Support part; 11. Support rod; 12. Base; 13. Bottom wheel; 20. Movable assembly; 21. First movable assembly; 211. First sliding sleeve; 212. First sliding rod; 213. First fixing member; 22. Second movable assembly; 221. Second sliding sleeve; 222. Second sliding rod; 223. Second fixing member; 30. First positioning member; 31. Clamping part; 32. First bolt; 40. Second positioning member; 41. Sleeve; 411. Bellows; 50. Pipe. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0025] The various specific technical features described in the specific embodiments may be combined in any suitable manner, unless they are inconsistent. For example, different embodiments and technical solutions may be formed by combining different specific technical features. To avoid unnecessary repetition, the various possible combinations of the specific technical features in the present invention will not be described separately.

[0026] In the following description, the terms "first, second, ..." are used solely to distinguish different objects and do not imply any similarities or connections between the objects. It should be understood that the directional descriptions "above," "below," "outside," and "inside" refer to directions during normal use. The directions "left" and "right" refer to the left-right directions shown in the corresponding schematic diagrams, which may or may not be the left-right directions during normal use.

[0027] It should be noted that the terms "include," "comprises," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or includes elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a..." does not exclude the presence of other identical elements in the process, method, article, or apparatus comprising that element. The term "connected," unless otherwise specified, includes both direct and indirect connections.

[0028] In a specific embodiment, the test device is suitable for verifying any pipeline in an automobile. For example, the test device is suitable for verifying the fuel filling performance, whether the filling is smooth, and whether there is backflow. For example, the test device is suitable for verifying the ventilation performance and whether the ventilation is smooth in the automobile air pipe. For ease of explanation, the following uses the test device's application to verifying the fuel filling pipe as an example to illustrate the test device structure.

[0029] In some embodiments, as Figure 1 As shown, the test device 1 includes: a support portion 10, a movable component 20, a first positioning member 30 and a second positioning member 40. The support portion 10 has a support rod 11. The support portion 10 can be understood as any device or structure that can be used to provide support for the test device 1. The support portion 10 can be a box structure, a flat plate structure, or a structure supported by multiple rods. The specific size and shape of the support portion 10 are not limited, as long as they meet the test requirements. The support portion 10 has a support rod 11. The support rod 11 is used to connect and cooperate with the movable component 20 so that the movable component 20 can move on the support rod 11. The support rod 11 can be a cylindrical rod or a rectangular parallelepiped. The specific size and shape are not limited. Similarly, the number of support rods 11 can be one or more, such as Figure 2 The specific conditions can be determined according to the actual test situation.

[0030] The movable component 20 is mounted on the support rod 11 and can move relative to the support rod 11. The movable component 20 can be understood as a device or structure that can move on the support rod 11. Movement includes rotation and translation. Any device or structure that can achieve movement on the support rod 11 meets the requirements. For example, the movable component 20 is a single part. The movable component 20 is a ring. The ring is sleeved on the support rod 11. The ring can rotate around the support rod 11 and move along the extension direction of the support rod 11. For example, the movable component 20 can be a combination of multiple parts. The movable component 20 includes multiple rings and slide rods. Each ring has a slide rod. One of the rings is sleeved on the support rod 11. The ring can rotate around the support rod 11 and move along the extension direction of the support rod 11. Another ring is sleeved on the slide rod of the ring connected to the support rod 11. The other ring can rotate relative to the slide rod and move along the extension direction of the slide rod, thereby achieving multi-angle and multi-directional movement. After the movable assembly 20 moves to the corresponding position, it is necessary to lock the movable assembly 20 to prevent the movable assembly 20 from moving during the test and causing the test to fail. Any structure that can lock the movable assembly 20 meets the requirements. For example, there are bolts on the ring, and the ring is fixed to the support rod 11 by the bolts. The specific locking structure will be described in detail below. It should be noted that during the pipeline test, the pipeline 50 is a hose. By adjusting the position of the movable assembly 20, the shape of the pipeline 50 can be arbitrarily adjusted to make the test pipeline the same as the actual pipeline shape, so that the pipeline 50 can be tested with various shapes. In order to facilitate the adjustment of the shape of the pipeline 50 and the fixation of the pipeline 50, multiple fixed positions need to be set. Each fixed position of the pipeline 50 corresponds to a group of movable assemblies 20. Multiple fixed positions of the pipeline 50 need to correspond to multiple groups of movable assemblies 20. Multiple movable assemblies 20 can be installed on the same support rod 11 or on different support rods 11, which can be determined according to the shape of the pipeline.

[0031] The first positioning member 30 is used to fix the pipe 50 and is connected to the movable component 20. Figure 3As shown, the first positioning member 30 can be understood as a device or structure that can fix the pipe 50. For example, the first positioning member 30 has a buckle. The size of the buckle is not limited and can be determined according to the diameter of the test pipe 50. The pipe 50 is fixed by being clamped into the buckle. For example, the first positioning member 30 has a circular sleeve with a hollow structure. The size of the circular sleeve is also not limited and can be determined according to the condition of the test pipe 50. The pipe 50 is fixed by passing through the circular sleeve. The first positioning member 30 is connected to the movable component 20, and the movable component 20 drives the first positioning member 30 to move to the corresponding position, so that the first positioning member 30 fixes the pipe 50. It should be noted that the first positioning member 30 is connected to the movable component 20. The connection here includes a fixed connection and a movable connection. The movable connection includes that the first positioning member 30 can rotate relative to the movable component 20. The specific structure will be described below.

[0032] The second positioning member 40 is connected to the movable component 20 and can adjust the bending angle of the extension direction of the pipe 50. Similarly, the connection between the second positioning member 40 and the movable component 20 includes a fixed connection and a movable connection. The movable component 20 drives the second positioning member 40 to move to the corresponding position, so that the second positioning member 40 fixes the pipe 50. It should be emphasized that the test pipe 50 is bent, and multiple positioning members need to be set for the bent position. In order to ensure the test accuracy and ensure that the bent position of the pipe 50 will not be deformed during the test, it is also convenient to fix the positioning member and avoid mutual interference caused by multiple positioning members. The second positioning member 40 can adjust the bending angle of the extension direction of the pipe 50. Specifically, it can be understood that the second positioning member 40 is capable of adjusting the bending angle of the extension direction of the pipe 50. Component 40 has a device or structure that can adjust the shape of the pipe 50. For example, the second positioning component 40 has a retractable and deformable clamping sleeve. The shape of the pipe 50 can be changed by adjusting the shape of the clamping sleeve, so that the pipe 50 can be tested in various shapes. After the pipe 50 is fixed according to the preset shape, one end of the pipe 50 is an injection port, and the other end of the pipe 50 is connected to the fuel tank. The pipeline verification test can be carried out by injecting fuel through the injection port. The shape of the pipe 50 can be changed by adjusting the movable component 20, so that the shapes of different pipes 50 can be verified. Under the premise of ensuring the accuracy of the test, the test cost is reduced and the verification cycle is shortened.

[0033] An embodiment of the present invention provides a pipeline verification test device, which includes: a support part, a movable component, a first positioning member and a second positioning member. The movable component drives the first positioning member and the second positioning member to move to their respective corresponding positions, and the pipeline is fixed by the first positioning member and the second positioning member respectively, so that the shape of the pipeline after fixation is the same as the shape of the designed pipeline, thereby conducting a verification test of the pipeline flowability. When the scheme is optimized, it is only necessary to adjust the fixed positions of the first positioning member and the second positioning member to change the shape of the simulated pipeline, thereby reducing the test cost and shortening the verification cycle. At the same time, in order to further improve the test accuracy, the second positioning member can be deformed along the extension direction of the pipeline compared to the first positioning member, and can adjust the bending angle of the pipeline. According to the shape of the design pipeline bend, the second positioning member can be adjusted to the corresponding bending angle, and the pipeline can be fixed by the second positioning member to make the pipeline have the same bending angle, thereby ensuring that the simulation scene is closer to the actual use scene, improving the test accuracy and avoiding the problem of mutual interference caused by the need to set multiple positioning members due to pipeline bending.

[0034] In some embodiments, as Figure 4 and Figure 5 As shown, the first positioning member 30 includes a clamping portion 31, and the clamping portion 31 is connected to the movable component 20; specifically, it can be understood that the clamping portion 31 is a structure capable of clamping and fixing the pipe 50. For example, one end of the clamping portion 31 can be a positioning clamp, and the pipe 50 is fixed by the positioning clamp so that the pipe 50 is fixed into the shape required for the test, and the other end of the clamping portion 31 is connected to the movable component 20. The connection here includes a fixed connection and a movable connection. Any fixed connection method meets the requirements. In order to improve the flexibility of the test device 1 and facilitate the adjustment of the shape of the pipe 50, the clamping portion 31 is movably connected to the movable component 20. For example, the other end of the clamping portion 31 One end is a ball head, and the movable component 20 has a groove. The ball head of the clamping part 31 is arranged in the groove of the movable component 20, and the ball head can rotate in the groove, thereby realizing the rotation of the clamping part 31 relative to the movable component 20; illustratively, the other end of the clamping part 31 has a through hole, and the movable component 20 has a bolt hole. The through hole of the clamping part 31 corresponds to the bolt hole of the movable component 20, and the first bolt 32 passes through the bolt hole and the through hole in sequence to connect the clamping part 31 with the movable component 20. The clamping part 31 rotates relative to the movable component 20. The specific degree of rotation is related to the setting of the connection position. For example, the clamping part 31 rotates 180 degrees around the first bolt 32.

[0035] The second positioning member 40 includes a shape-adjustable sleeve 41, which is connected to the movable component 20. Specifically, it can be understood that in some experiments, it is necessary to test and verify the curved pipe 50. The second positioning member 40 is mainly used to clamp the curved position of the pipe 50. One end of the shape-adjustable sleeve 41 has a structure that can clamp and fix the curved pipe 50, thereby avoiding the problem of multiple first positioning members 30 being required to achieve the bending of the pipe 50 and the aggregation of multiple first positioning members 30 causing mutual interference. For example, the shape-adjustable sleeve 41 is a bellows 411. The pipe 50 is fixed to the bellows 411 according to the shape of the bellows 411 and can be adjusted to the same shape as the bellows 411. The bellows 411 can be telescopically adjusted and can also be bent. The other end of the sleeve 41 is connected to the movable component 20. The connection here includes a fixed connection and a movable connection. Any fixed connection method meets the requirements. In order to improve the flexibility of the test device 1 and facilitate the adjustment of the shape of the pipeline 50, the sleeve 41 and the movable component 20 are movably connected. The connection method between the sleeve 41 and the movable component 20 can be the same as the connection method between the clamping part 31 and the movable component 20, which will not be repeated here.

[0036] In some embodiments, as Figure 5 As shown, in order to further improve the flexibility of the test device 1 , the second positioning member 40 includes a clamping portion 31 , which can be used to clamp the sleeve 41 . Specifically, for pipes 50 with different bends, the setting positions and setting quantities of the first positioning member 30 and the second positioning member 40 are different. In order to improve the adjustment flexibility of the first positioning member 30 and the second positioning member 40 and achieve the commonality between the first positioning member 30 and the second positioning member 40, the second positioning member 40 has a clamping portion 31 of the first positioning member 30, and the clamping portion 31 can be used to clamp the sleeve 41. It can be understood that the first positioning member 30 and the second positioning member 40 both have a clamping portion 31, and the second positioning member 40 has an additional sleeve 41 compared to the first positioning member 30. The sleeve 41 is movably connected to the clamping portion 31. By adding the sleeve 41 to the first positioning member 30, the first positioning member 30 is turned into the second positioning member 40. By removing the sleeve 41 on the second positioning member 40, the second positioning member 40 is turned into the first positioning member 30, thereby achieving the commonality between the first positioning member 30 and the second positioning member 40.

[0037] In some embodiments, as Figure 3As shown, multiple first positioning members 30 are adjacent to the second positioning member 40. The sleeve 41 of the second positioning member 40 fixes the bent position of the pipe 50. If the length of the bent position of the pipe 50 is greater than the length of the sleeve 41, in order to ensure the accuracy of the test, multiple first positioning members 30 can be set on both sides of the second positioning member 40. The specific number can be determined according to actual conditions. By having multiple first positioning members 30 adjacent to the second positioning member 40, the pipe 50 is fixed in the preset test shape.

[0038] In some embodiments, as Figure 1 As shown, the movable assembly 20 includes: a first movable assembly 21 and a second movable assembly 22. The first movable assembly 21 is mounted on the support rod 11 and can rotate around the support rod 11 and move along the extension direction of the support rod 11; the second movable assembly 22 is mounted on the first movable assembly 21 and can rotate around the first movable assembly 21 and move along the extension direction of the first movable assembly 21. Specifically, in order to improve the flexibility of the test device 1 and facilitate the movement of the positioning member to the corresponding position, the movable assembly 20 is composed of multiple sub-movable assemblies, including a first movable assembly 21 and a second movable assembly 22. The first movable assembly 21 is connected to the support rod 11 and can move relative to the support rod 11. Any structure that can rotate around the support rod 11 and move along the extension direction of the support rod 11 meets the requirements. The second movable assembly 22 is connected to the first movable assembly 21 and can move relative to the first movable assembly 21. Any structure that can rotate around the first movable assembly 21 and move along the extension direction of the first movable assembly 21 meets the requirements. The specific structures of the first movable assembly 21 and the second movable assembly 22 will be described in detail below.

[0039] In some embodiments, as Figure 6As shown, the first movable assembly 21 includes a first sliding sleeve 211, a first sliding rod 212, and a first fixing member 213. The first sliding sleeve 211 is mounted on the support rod 11 and can rotate around the support rod 11 and move along the extension direction of the support rod 11; the first sliding rod 212 is fixed to the first sliding sleeve 211 and connected to the second movable assembly 22; the first fixing member 213 is used to fix the first sliding sleeve 211 to the support rod 11. Specifically, the first sleeve 211 is sleeved on the support rod 11, and the first sleeve 211 can move along the extension direction of the support rod 11, and the first sleeve 211 can rotate 360 ​​degrees around the support rod 11. A first slide bar 212 is fixed on the first sleeve 211, and the first sleeve 211 drives the first slide bar 212 to rotate and move. After the first sleeve 211 moves to the corresponding position, it needs to be locked. The first movable component 21 also includes a first fixing member 213. Any structure that can lock the first sleeve 211 at any position meets the requirements. Exemplarily, the first fixing member 213 is a locking bolt, and the first sleeve 211 has a threaded hole. The locking bolt passes through the threaded hole and contacts the support rod 11. After the first sleeve 211 moves to the corresponding position, the locking bolt is adjusted so that one end of the locking bolt abuts against the support rod 11, thereby fixing the first movable component 21. Exemplarily, the first fixing member 213 is a retractable slider, and a slide groove is provided on the support rod 11. After the first sleeve 211 moves to the corresponding position, the retractable slider is moved to the slide groove position corresponding to the first sleeve 211, and the first sleeve 211 is fixed, thereby fixing the first movable component 21.

[0040] In some embodiments, as Figure 7As shown, the second movable assembly 22 includes a second sliding sleeve 221, a second sliding rod 222, and a second fixing member 223. The second sliding sleeve 221 is mounted on the first sliding rod 212 and can rotate around the first sliding rod 212 and move along the extension direction of the first sliding rod 212. The second sliding rod 222 is fixed to the second sliding sleeve 221 and connected to the first positioning member 30 or the second positioning member 40. The second fixing member 223 is used to fix the second sliding sleeve 221 to the first sliding rod 212. Specifically, the second slide sleeve 221 is sleeved on the first slide rod 212, and the structure of the second slide sleeve 221 can be the same as that of the first slide sleeve 211. The second slide sleeve 221 can move along the extension direction of the first slide rod 212, and the second slide sleeve 221 can rotate 360 ​​degrees around the first slide rod 212. One end of the second slide rod 222 is fixed to the second slide sleeve 221, and the other end of the second slide rod 222 is connected to the first positioning member 30 or the second positioning member 40. Exemplarily, the other end of the second slide rod 222 has a bolt hole, and the first positioning member 30 or the second positioning member 40 is provided with a through hole. The first bolt 32 passes through the bolt hole and the through hole in sequence for connection, so that the first positioning member 30 or the second positioning member 40 can rotate relative to the second slide rod 222. The second sliding sleeve 221 drives the second sliding rod 222 to rotate and move. The second sliding sleeve 221 needs to be locked after moving to the corresponding position. The second movable component 22 also includes a second fixing member 223. Any structure that can lock the second sliding sleeve 221 at any position meets the requirements. For example, the second fixing member 223 is a locking bolt, and the second sliding sleeve 221 has a threaded hole. The specific locking principle is the same as the locking principle of the first fixing member 213, which will not be repeated here.

[0041] In some embodiments, as Figure 1 As shown, in order to improve the overall operability of the test device 1, the support part 10 includes a base 12, and the base 12 is fixedly connected to the support rod 11. Specifically, the base 12 can be used to carry the items to be verified, and at the same time can lower the center of gravity of the test device 1 to prevent the test device 1 from overturning. In order to facilitate the carrying of the items to be tested, the base 12 can be a flat plate structure. The specific shape and size of the base 12 are not limited, as long as they meet the test requirements. The base 12 can be a circular flat plate or a rectangular flat plate. The base 12 is fixedly connected to the support rod 11. The connection method here is not limited. In order to facilitate disassembly, it is set to a detachable structure. For example, the base 12 is provided with a through hole, and the support rod 11 is inserted into the through hole. The base 12 is connected to the support rod 11 by an interference fit. At the same time, the connection between the base 12 and the support rod 11 lowers the center of gravity of the test device 1, effectively reducing the risk of overturning during the test process.

[0042] In some embodiments, as Figure 1As shown, in order to improve the mobility of the test device 1, the support portion 10 further includes bottom wheels 13, which are fixed to the bottom of the base 12. Specifically, in order to facilitate the transportation of the test device 1 and improve the maneuverability of the test device 1, bottom wheels 13 are installed below the base 12. The rotation of the bottom wheels 13 drives the movement of the test device 1, thereby improving the mobility of the test device 1. The specific size and number of the bottom wheels 13 are not limited and can be met as required. For example, the base 12 is a rectangular flat plate, and the support portion 10 has four bottom wheels 13. The four bottom wheels 13 are arranged near the four corners of the base 12, which can not only drive the movement of the test device 1 but also ensure the stability of the test device 1 and prevent the test device 1 from overturning.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention.

Claims

1. A pipeline verification test device, characterized in that: include: A support portion having a support rod; A movable assembly is mounted on the support rod and is movable relative to the support rod; a first positioning member, used for fixing the pipeline and connected to the movable assembly; The second positioning member is connected to the movable component and can adjust the bending angle of the extension direction of the pipeline; the second positioning member includes a sleeve with adjustable shape, the sleeve is connected to the movable component, and the second positioning member adjusts the bending angle of the extension direction of the pipeline through the sleeve.

2. The test device according to claim 1, characterized in that The first positioning member includes a clamping portion, and the clamping portion is connected to the movable component.

3. The test device according to claim 2, characterized in that The sleeve is a bellows.

4. The test device according to claim 2 or 3, characterized in that The second positioning member includes the clamping portion, and the clamping portion can be used to clamp the sleeve.

5. The test device according to claim 2, characterized in that A plurality of the first positioning members are adjacent to the second positioning members.

6. The test device according to claim 1, characterized in that The active components include: A first movable assembly is mounted on the support rod and is capable of rotating around the support rod and moving along an extension direction of the support rod; The second movable component is installed on the first movable component and can rotate around the first movable component and move along the extension direction of the first movable component.

7. The test device according to claim 6, characterized in that The first activity component includes: a first sliding sleeve, mounted on the support rod, capable of rotating around the support rod and moving along an extension direction of the support rod; a first sliding rod, fixed to the first sliding sleeve and connected to the second movable component; The first fixing member is used to fix the first sliding sleeve on the support rod.

8. The test device according to claim 7, characterized in that The second activity component includes: a second sliding sleeve, mounted on the first sliding rod, capable of rotating around the first sliding rod and moving along an extension direction of the first sliding rod; a second sliding rod, fixed to the second sliding sleeve and connected to the first positioning member or the second positioning member; The second fixing member is used to fix the second sliding sleeve on the first sliding rod.

9. The test device according to claim 1, characterized in that The support portion includes a base, and the base is fixedly connected to the support rod.

10. The test device according to claim 9, characterized in that The support portion further includes a bottom wheel, and the bottom wheel is fixed below the base.

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