A test fixture

Abstract

The utility model provides a kind of test fixing device, it is related to cross-flow fan blade technical field, solve the technical problem of cross-flow fan blade, motor long-term operation test when dismounting is complicated, no general fixing structure.This test fixing device, including backplate, first fixed clamp, second fixed clamp, positioner;First fixed clamp is fixed on backplate, for motor with detachable fixed mode;Second fixed clamp is movably arranged on backplate by positioner, for cross-flow fan blade with detachable fixed mode fixed.This utility model is applicable to different specifications of cross-flow fan blade, strong adaptability, can be according to the length of fan blade and motor shape custom fixture, using detachable structure, realize quick dismounting, install quickly, easy to operate, fixed firm, ensure that test data accuracy, improve test efficiency.

Description

Technical Field

[0001] This utility model relates to the field of cross-flow fan blade technology, and in particular to a long-term operation test fixing device for cross-flow fan blades. Background Technology

[0002] When installing cross-flow fan blades and encapsulated motors for long-term operation tests, the motor and fan blades need to be fixed in place. Cross-flow fan blades are divided into wall-mounted cross-flow fan blades (horizontal) and floor-standing cross-flow fan blades (vertical). The installation method needs to simulate actual installation, as floor-standing cross-flow fan blades cannot be tested using normal installation methods. Furthermore, the existing installation is very cumbersome. Using the air conditioner's base casing for installation, disassembling and assembling a sample requires disassembling an air conditioner to remove the tested motor and fan blades, and then installing the new sample into the air conditioner's base casing for testing. Disassembling and assembling a single motor and fan blade sample takes at least half an hour, which is tedious, wastes manpower, and cannot meet the testing conditions for all motors and cross-flow fan blades.

[0003] Therefore, it is necessary to develop a universal test fixture that can quickly disassemble and assemble the motor and fan blades, and can meet the installation requirements of both wall-mounted cross-flow fan blades (horizontal) and cabinet-type cross-flow fan blades (vertical). Utility Model Content

[0004] The purpose of this utility model is to provide a fixing device for long-term operation test of cross-flow fan blades. It can make universal fixing clamps according to the length of the fan blades and the shape of the motor, so as to achieve rapid installation and stable fixing, improve the test efficiency and accuracy, and solve the technical problems of cumbersome disassembly and assembly and lack of universal fixing structure in the long-term operation test of cross-flow fan blades and motors in the prior art.

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

[0006] This utility model provides a test fixing device, comprising a back plate, a first fixing clamp, a second fixing clamp, and an adjustment assembly; wherein:

[0007] The first fixing clamp is fixed to the back plate and is used to fix one part of the component to be tested in a detachable fixing manner;

[0008] The second fixing clamp is movably mounted on the back plate via the adjustment component, and is used to fix another part of the component to be tested in a detachable fixing manner.

[0009] The test fixing device provided by this utility model includes a back plate, a first fixing clamp, a second fixing clamp, and an adjustment component. The first fixing clamp detachably fixes one part of the component to be tested, and the second fixing clamp detachably fixes the other part of the component to be tested. The adjustment component allows for position adjustment of the second fixing clamp, making it suitable for components of different specifications. It has strong adaptability and the clamps can be customized according to the length of the fan blade and the shape of the motor. The detachable structure allows for quick assembly and disassembly of the component to be tested. The device is quick to install, easy to operate, and securely fixed, ensuring the accuracy of test data and improving test efficiency.

[0010] Based on the above technical solution, the present invention can be further improved as follows.

[0011] As a further improvement of this utility model, the first fixing clamp includes a base plate, a fixing frame, a clamping frame, a first clamping part, a second clamping part, and a locking assembly; wherein:

[0012] The base plate is disposed on one side of the fixed frame;

[0013] The fixed frame is a hollow frame structure;

[0014] One end of the clamping frame is rotatably connected to one side of the fixed frame, and the other end is detachably connected to the other side of the fixed frame via the locking component.

[0015] The first clamping part and the second clamping part are disposed between the fixed frame and the clamping frame, and are respectively located on both sides of the fixed frame.

[0016] The first fixing clamp of this utility model is used to fix the motor. The first clamping part and the second clamping part are used to clamp the rubber rings at both ends of the plastic-sealed motor, respectively. Then, the motor is put in when the clamping frame is opened, and the motor is stabilized by the locking component after closing.

[0017] As a further improvement of this utility model, the first clamping part and the second clamping part have the same structure; wherein, the first clamping part includes a semi-circular right slot provided on the fixed frame and a semi-circular left slot provided on the clamping frame; the left slot and the right slot are joined together to form a circular clamping part.

[0018] As a further improvement of this utility model, anti-slip fastening teeth are provided on the inner wall of the left slot and / or the right slot.

[0019] By setting anti-slip fastening teeth inside the clamping part, which abut against the rubber ring, the fixed end is prevented from sliding and the fan blades from detaching due to vibration during operation.

[0020] As a further improvement of this utility model, the locking assembly includes a locking pin, a locking hole, a rotating locking shaft, a locking rod, a knob, and a bayonet; wherein:

[0021] The number of locking pins is two, which are arranged in parallel and spaced apart on the fixed frame;

[0022] The keyhole is provided through both of the lock pins;

[0023] The rotary lock shaft is rotatably inserted into the two lock holes;

[0024] One end of the locking rod is connected to the knob, and the other end is connected to the connecting hole located between the two locking pins of the rotating locking shaft;

[0025] The bayonet is located on the clamping frame, and the diameter of the bayonet is adapted to the diameter of the locking rod.

[0026] With the above structural design, during operation, the locking rod can be rotated by pulling the knob, causing it to disengage from the bayonet and thus releasing the lock. Then, the clamping frame can be opened to remove the motor. Alternatively, when the motor needs to be placed, the clamping frame can be opened, and the rubber rings at both ends of the motor can be inserted into the first and second clamping parts respectively. Then, the locking rod can be pulled to open it outwards, closing the clamping frame. Pulling the knob will then cause the locking rod to engage in the bayonet, thereby locking the motor in a fixed position.

[0027] As a further improvement of this utility model, the second fixing clamp includes a fixing base and a coupling;

[0028] in:

[0029] The mounting base has an L-shaped structure and includes a base plate and a vertical plate;

[0030] The coupling is mounted on the vertical plate.

[0031] This invention uses a coupling in the second fixed clamp to install one end of the cross-flow fan blade, while the other end of the cross-flow fan blade is connected to the motor shaft held in the first fixed clamp. This allows the motor and the cross-flow fan blade to undergo long-term operation tests within the test fixture. Furthermore, since both the first and second fixed clamps are mounted on a back plate, which can be installed vertically or horizontally, long-term operation tests of the cross-flow fan blade can be performed in either a vertical (standing) or horizontal (horizontal) installation configuration.

[0032] As a further improvement of this utility model, the adjustment component includes a linear guide rail and a linear slider;

[0033] in:

[0034] The linear guide rail is fixed to the back plate;

[0035] The linear slider is slidably mounted on the linear guide rail;

[0036] The second fixing clamp is mounted on the linear slider.

[0037] The adjustment component of this utility model includes a linear guide rail and a linear slider. When needed, the position of the linear slider on the linear guide rail can be adjusted according to the length of the cross-flow fan blade to achieve the same applicability to cross-flow fan blades of different specifications.

[0038] As a further improvement of this utility model, a locking member is also included, which is disposed between the linear slider and the linear guide rail to lock and release the position of the second fixing clamp.

[0039] As a further improvement of this utility model, the locking member includes a magnet block, which is magnetically attracted to the linear guide rail and abuts against the linear slider.

[0040] As a further improvement of this utility model, the back plate is installed in the position to be installed in a horizontal or vertical direction.

[0041] The experimental fixing device of this utility model mainly uses a universal first fixing clamp made according to the appearance dimensions of the encapsulated DC motor, and designs a related support bracket (fixed seat) and a sliding rail type adjustment component according to the appearance dimensions of the cross-flow fan blade. The cross-flow fan blade can be positioned and fixed by sliding the fixed seat according to the length of the fan blade. The first fixing clamp for fixing the motor has strong versatility. Multiple coded motors can be fixed using the same clamp, achieving the purpose of convenient installation and strong versatility, and improving the efficiency of experimental operation. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a top view of the test fixing device of this utility model;

[0044] Figure 2 This is a side view of the test fixing device of this utility model;

[0045] Figure 3 This is a schematic diagram of the structure of the test fixing device of this utility model in use;

[0046] Figure 4 This is a partial exploded view of the first fixing clamp in the experimental fixing device of this utility model;

[0047] Figure 5 This is a partial structural diagram of the first fixing clamp in the experimental fixing device of this utility model after the base plate is removed;

[0048] Figure 6 This is a schematic diagram of the structure of the base plate in the first fixing fixture of the experimental fixing device of this utility model;

[0049] Figure 7 This is a top view of the fixing frame in the first fixing clamp of the experimental fixing device of this utility model;

[0050] Figure 8 This is a side view of the fixing frame in the first fixing fixture of the experimental fixing device of this utility model;

[0051] Figure 9 This is a front view of the fixing frame in the first fixing fixture of the experimental fixing device of this utility model;

[0052] Figure 10 This is a side view of the clamping frame in the first fixing fixture of the experimental fixing device of this utility model;

[0053] Figure 11 This is a top view of the clamping frame in the first fixing fixture of the experimental fixing device of this utility model;

[0054] Figure 12 This is a front view of the clamping frame in the first fixing fixture of the experimental fixing device of this utility model;

[0055] Figure 13 This is a three-dimensional structural diagram of the clamping frame in the first fixing fixture of the experimental fixing device of this utility model;

[0056] Figure 14 This is a three-dimensional structural diagram of the rotating locking shaft in the first fixing fixture of the experimental fixing device of this utility model;

[0057] Figure 15 This is a front view of the rotary locking shaft in the first fixing fixture of the experimental fixing device of this utility model;

[0058] Figure 16 This is a cross-sectional view of the rotating locking shaft in the first fixing fixture of the experimental fixing device of this utility model;

[0059] Figure 17 This is a schematic diagram of the locking rod and knob in the first fixing fixture of the experimental fixing device of this utility model.

[0060] In the picture:

[0061] 1. Back panel;

[0062] 2. Second fixing fixture;

[0063] 21. Fixture;

[0064] 22. Couplings;

[0065] 3. First fixing fixture;

[0066] 31. Base plate;

[0067] 32. Fixed frame;

[0068] 33. Clamping frame;

[0069] 34. First clamping part;

[0070] 341. Right card slot;

[0071] 342. Left card slot;

[0072] 35. Second clamping part;

[0073] 36. Locking components;

[0074] 361. Locking post;

[0075] 362. Rotary locking shaft;

[0076] 363. Keyhole;

[0077] 364. Locking bar;

[0078] 365, checkpoint;

[0079] 366. Connecting hole;

[0080] 4. Positioning component;

[0081] 41. Linear guide rail;

[0082] 42. Linear slider;

[0083] 5. Locking components;

[0084] 100. Electric motor;

[0085] 101. Rubber ring;

[0086] 200. Crossflow fan blades. Detailed Implementation

[0087] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0088] like Figures 1-17 As shown, this utility model provides a test fixing device, including a back plate 1, a first fixing clamp 3, a second fixing clamp 2, and an adjustment assembly 4; wherein:

[0089] Back plate 1 is used to support the entire fixing device;

[0090] The first fixing clamp 3 is fixed on the back plate 1 and is used to fix one part of the component to be tested in a detachable fixing manner;

[0091] The second fixing clamp 2 is movably mounted on the back plate 1 via the adjustment component 4, and is used to fix another part of the component to be tested in a detachable fixing manner, and is suitable for cross-flow fan blades 200 of different lengths.

[0092] It should be noted that the components under test are specifically described below using motor 100 and cross-flow fan blade 200 as examples. The first fixing clamp 3 is used to fix motor 100, and the second fixing clamp 2 is used to fix cross-flow fan blade 200.

[0093] The test fixing device provided by this utility model includes a back plate 1, a first fixing clamp 3, a second fixing clamp 2, and an adjustment component 4. The first fixing clamp 3 is used to detachably fix the motor 100, and the second fixing clamp 2 is used to detachably fix the cross-flow fan blade 200. The adjustment component 4 is used to adjust the position of the second fixing clamp 2, thus making it suitable for cross-flow fan blades 200 of different specifications. It has strong adaptability and the clamps can be customized according to the length of the fan blade and the shape of the motor 100. The detachable structure enables quick assembly and disassembly of the fan and the cross-flow fan blade. The installation is fast, the operation is simple, and the fixing is stable, ensuring the accuracy of test data and improving test efficiency.

[0094] like Figures 4-17 As shown, in this embodiment, the first fixing clamp 3 includes a base plate 31, a fixing frame 32, a clamping frame 33, a first clamping part 34, a second clamping part 35, and a locking assembly 36; wherein:

[0095] The base plate 31 is disposed on one side of the fixed frame 32; the fixed frame 32 is mounted on the back plate 1 via the base plate 31;

[0096] Fixed frame 32 is a hollow frame structure;

[0097] One end of the clamping frame 33 is rotatably connected to one side of the fixed frame 32, and the other end is detachably connected to the other side of the fixed frame 32 via the locking component 36.

[0098] The first clamping part 34 and the second clamping part 35 are disposed between the fixed frame 32 and the clamping frame 33, and are respectively located on both sides of the fixed frame 32.

[0099] Considering that there are rubber rings 101 on both sides of the motor 100 in this embodiment, two clamping parts are provided to clamp and fix the rubber rings 101 on both sides respectively. Of course, if the motor 100 only has a rubber ring 101 on one side, only one clamping part can be provided.

[0100] The first fixing clamp 3 of this utility model is used to fix the motor 100 and ensure the stability of operation. The first clamping part 34 and the second clamping part 35 are used to clamp the rubber rings 101 at both ends of the plastic-sealed motor 100 respectively. Then, the motor 100 is put in when the clamping frame 33 is opened, and the motor 100 is stabilized by locking component 36 after closing.

[0101] In order to simplify the structure, reduce the processing cost, and considering that the rubber rings on both sides of the motor are the same in shape, the first clamping part 34 and the second clamping part 35 have the same structure in this embodiment.

[0102] The first clamping part 34 includes a semi-circular right slot 341 provided on the fixed frame 32 and a semi-circular left slot 342 provided on the clamping frame 33; the left slot 342 and the right slot 341 are joined together to form a circular clamping part.

[0103] To further ensure the stability of the fixation, in this embodiment, anti-slip fastening teeth are provided on the inner walls of the left slot 342 and / or the right slot 341.

[0104] Because the motor 100 has rubber rings 101 on both the top and bottom, when the motor 100 is placed in the fixing frame and the clamping frame, the rubber rings 101 on the top and bottom of the motor 100 are aligned with the anti-slip fastening teeth of the first clamping part and the second clamping part. The anti-slip fastening teeth (threads) play an anti-slip role.

[0105] By setting anti-slip fastening teeth inside the clamping part, which abut against the rubber ring 101, the fixed end is prevented from sliding and the fan blades from detaching due to vibration during operation.

[0106] like Figures 1-17 As shown, the locking assembly 36 includes a locking pin 361, a locking hole 363, a rotating locking shaft 362, a locking lever 364, a knob, and a latch 365; wherein:

[0107] There are two locking pins 361, which are arranged in parallel at intervals on the fixing frame 32 to form an insertion port between them;

[0108] A lock hole 363 is provided through the two lock pins 361 for connecting to the rotating lock shaft 362.

[0109] The rotary locking shaft 362 is rotatably inserted into two locking holes 363;

[0110] One end of the locking rod 364 is connected to the knob, and the other end is connected to the connecting hole 366 of the rotating locking shaft 362 located in the middle of the two locking pins 361, which is the insertion port position;

[0111] The bayonet 365 is set on the clamping frame 33, and the diameter of the bayonet 365 is adapted to the diameter of the locking rod 364. The clamping frame is locked by the locking rod 364 being inserted into the bayonet 365, thereby achieving the function of locking the motor 100.

[0112] With the above structural design, during operation, the locking rod 364 can be rotated by pulling the knob, and then the locking rod 364 can be disengaged from the slot 365 to release the lock. Then the clamping frame 33 can be opened to take out the motor 100. Alternatively, when it is necessary to place the motor 100, the clamping frame 33 can be opened, and then the rubber rings 101 at both ends of the motor 100 can be inserted into the first clamping part 34 and the second clamping part 35 respectively. Then the locking rod 364 can be pulled to open the locking rod 364 outward, the clamping frame 33 can be closed, and the knob can be pulled to insert the locking rod 364 into the slot 365, thereby locking the fixed position of the motor 100.

[0113] like Figures 1-3 As shown, as a further improvement of this utility model, the second fixing clamp 2 includes a fixing base 21 and a coupling 22; wherein:

[0114] The mounting base 21 has an L-shaped structure and includes a base plate and a vertical plate;

[0115] Coupling 22 is mounted on the vertical plate.

[0116] This invention provides a coupling 22 in the second fixed clamp 2, which can be used to install one end of the cross-flow fan blade 200. The other end of the cross-flow fan blade 200 is connected to the shaft of the motor 100 held in the first fixed clamp 3. This allows the motor 100 and the cross-flow fan blade 200 to undergo long-term operation tests within the test fixture. Furthermore, since both the first fixed clamp 3 and the second fixed clamp 2 are mounted on the back plate 1, which can be installed vertically or horizontally, long-term operation tests of the cross-flow fan blade 200 can be performed in either a vertical (standing) or horizontal (horizontal) installation mode.

[0117] like Figures 1-3 As shown, the adjustment component 4 includes a linear guide rail 41 and a linear slider 42; wherein:

[0118] Linear guide rail 41 is fixed on back plate 1;

[0119] The linear slider 42 is slidably mounted on the linear guide rail 41;

[0120] The second fixing fixture 2 is installed on the linear slider 42.

[0121] The adjustment component 4 of this utility model includes a linear guide rail 41 and a linear slider 42. When needed, the position of the linear slider 42 on the linear guide rail 41 can be adjusted according to the length of the cross-flow fan blade 200 to achieve the same applicability to cross-flow fan blades 200 of different specifications.

[0122] like Figures 1-3 As shown, it also includes a locking element 5, which is disposed between the linear slider 42 and the linear guide rail 41 to lock and release the position of the second fixed clamp 2.

[0123] Specifically, in this embodiment, the locking component 5 includes a magnet block, which is magnetically attracted to the linear guide rail 41 and abuts against the linear slider 42. The magnet block fixes the position of the linear slider and the fixing seat 21 according to the length of the cross-flow fan blade 200, preventing the fixing end from sliding and the fan blade from detaching due to vibration during operation. The magnet block can slide and be fixed freely according to the length of the fan blade, eliminating the need for fastening screws as required by traditional positioning, making it simple and convenient.

[0124] In use, the magnet can be removed and placed as needed, and then its magnetism is used to press against the linear guide rail 41 and abut against one end of the linear slider 42, thereby locking the position of the second fixed clamp 2.

[0125] It should be noted that the back plate 1 of this utility model can be installed horizontally in the position to be installed; of course, the back plate 1 can also be installed vertically in the position to be installed, thereby realizing the test of the horizontal or vertical installation of the cross-flow fan blade 200.

[0126] During installation, the motor 100 is fixed to the first fixing clamp 3. The cross-flow fan blade 200 is connected to the motor 100. The cross-flow fan blade 200 at one end of the motor 100 is fixed to the shaft of the motor 100 by locking screws on the cross-flow fan blade 200. The position of the linear slider 42 is adjusted according to the length of the cross-flow fan blade 200. The second fixing clamp 2 is installed on the linear slider 42. The distance of the fixing seat at the other end is adjusted to ensure that the cross-flow fan blade is firmly fixed. The shaft on the cross-flow fan blade 200 is inserted into the coupling 22 of the fixing seat 21. Finally, the locking piece 5, i.e., the magnet, is attracted to the linear guide rail 41 and abuts against the linear slider 42; or it is placed below the linear slider 42 and attracted to the linear guide rail 41 and the linear slider 42 to prevent the fixing seat 21 from sliding down. Prepare for the test by starting the motor 100 and conducting a long-term operation test. The stability of the fixing device is tested to ensure the accuracy of the test data.

[0127] The experimental fixing device of this utility model mainly uses a universal first fixing clamp 3 made according to the external dimensions of the encapsulated DC motor 100, and a related support bracket (fixed seat 21) and a sliding rail type adjustment component 4 designed according to the external dimensions of the cross-flow fan blade 200 to ensure tight fixing. The cross-flow fan blade 200 can be positioned and fixed by sliding the fixed seat 21 according to the length of the fan blade. The first fixing clamp 3 for fixing the motor 100 has strong versatility. Multiple coded motors 100 can be fixed using the same clamp, achieving the purpose of convenient installation and strong versatility, and improving the efficiency of experimental operation.

[0128] First, it should be noted that "inward" refers to the direction towards the center of the storage space, while "outward" refers to the direction away from the center of the storage space.

[0129] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "transverse," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the appendix. Figure 1 The orientations or positional relationships shown are for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0130] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0131] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0132] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0134] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A test fixture, characterized in that, Includes a backplate, a first fixing clamp, a second fixing clamp, and an adjustment assembly; wherein: The first fixing clamp is fixed to the back plate and is used to fix one part of the component to be tested in a detachable fixing manner; The second fixing clamp is movably mounted on the back plate via the adjustment component, and is used to fix another part of the component to be tested in a detachable fixing manner.

2. The test fixture according to claim 1, characterized in that, The first fixing fixture includes a base plate, a fixing frame, a clamping frame, a first clamping part, a second clamping part, and a locking assembly; wherein: The base plate is disposed on one side of the fixed frame; The fixed frame is a hollow frame structure; One end of the clamping frame is rotatably connected to one side of the fixed frame, and the other end is detachably connected to the other side of the fixed frame via the locking component. The first clamping part and the second clamping part are disposed between the fixed frame and the clamping frame, and are respectively located on both sides of the fixed frame.

3. The test fixture according to claim 2, characterized in that, The first clamping part and the second clamping part have the same structure; wherein, the first clamping part includes a semi-circular right slot provided on the fixed frame and a semi-circular left slot provided on the clamping frame; the left slot and the right slot are joined together to form a circular clamping part.

4. The test fixture according to claim 3, characterized in that, The inner wall of the left slot and / or the right slot is provided with anti-slip fastening teeth.

5. The test fixture according to claim 2, characterized in that, The locking assembly includes a locking pin, a locking hole, a rotating locking shaft, a locking rod, a knob, and a bayonet; wherein: The number of locking pins is two, which are arranged in parallel and spaced apart on the fixed frame; The keyhole is provided through both of the lock pins; The rotary lock shaft is rotatably inserted into the two lock holes; One end of the locking rod is connected to the knob, and the other end is connected to the connecting hole located between the two locking pins of the rotating locking shaft; The bayonet is located on the clamping frame, and the diameter of the bayonet is adapted to the diameter of the locking rod.

6. The test fixture according to claim 1, characterized in that, The second fixing fixture includes a fixing base and a coupling; wherein: The mounting base has an L-shaped structure and includes a base plate and a vertical plate; The coupling is mounted on the vertical plate.

7. The test fixture according to claim 1, characterized in that, The adjustment assembly includes a linear guide rail and a linear slider; wherein: The linear guide rail is fixed to the back plate; The linear slider is slidably mounted on the linear guide rail; The second fixing clamp is mounted on the linear slider.

8. The test fixture according to claim 7, characterized in that, It also includes a locking element disposed between the linear slider and the linear guide rail to lock and release the position of the second fixing clamp.

9. The test fixture according to claim 8, characterized in that, The locking element includes a magnet block that magnetically attaches to the linear guide rail and abuts against the linear slider.

10. The test fixture according to claim 1, characterized in that, The backplate is installed horizontally or vertically at the installation location.

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