Fatigue testing machine for luggage pull rod quality detection and testing method

Abstract

The invention discloses a fatigue testing machine for luggage pull rod quality detection and a testing method, and relates to the related field of luggage pull rod detection.The fatigue testing machine comprises a fixing base and a vertical plate fixed to one side of the top of the fixing base, an electric push rod is installed at the top of the vertical plate, and the output end of the electric push rod is fixed to one side of a detection frame; the detection frame can slide up and down back and forth; a fixing mechanism is arranged on one side of the bearing plate, and the luggage bodies of different sizes are restrained through the arrangement of the fixing mechanism. According to the fatigue testing machine for quality detection of the luggage pull rod and the testing method, the limiting mechanism is arranged, the pull rod of the luggage body is limited through the limiting mechanism, the luggage can be limited through the fixing mechanism, the detection frame is driven to move through the electric push rod, and then detection processing can be conveniently carried out; by opening the first regulating valve or opening the first regulating valve and the second regulating valve at the same time, test processing can be conveniently simulated in different states.

Description

Technical Field

[0001] The present invention relates to the technical field related to luggage drawbar detection, and in particular to a fatigue testing machine and a testing method for luggage drawbar quality detection. Background Art

[0002] With the booming tourism industry and the growth of people's daily travel needs, the frequency of use of luggage is increasing, which has made the quality of luggage trolleys more and more concerned; the existing means of quality inspection of trolleys are relatively limited, and some small manufacturers even rely on simple manual pull tests to judge the durability of trolleys. This method lacks scientificity and accuracy, and it is difficult to simulate the complex stress conditions of trolleys in actual use. Therefore, it is necessary to use a fatigue testing machine to conduct quality inspection on luggage trolleys.

[0003] When inspecting bags, the inspection process is usually carried out by pulling the pull rod back and forth. At this time, the bags are very likely to be offset due to the movement of the pull rod, and the bags and the bag pull rod may even be damaged during the pulling inspection process. In order to overcome the above defects, reference can be made to the bag pull rod fatigue testing machine disclosed in the prior art (application number CN201510203324.X, published on September 5, 2017). The fatigue testing machine places the bags on a workbench and fixes the bags with a fixing plate; The pressure head fixes the pull rod of the luggage on the clamp seat; the upper and lower positions of the clamp seat can be adjusted by rotating the screw rod to facilitate clamping the pull rod of the luggage; if the pull rod switch of the luggage is on the top, align the cylinder one and the upper push rod with the pull rod switch; if the pull rod switch of the luggage is on the side, align the cylinder two and the side push rod with the pull rod switch; if the pull rod switch of the luggage is at the bottom, align the cylinder three and the lower push rod with the pull rod switch, and limit the luggage through the clamp to achieve the purpose of fixing. In addition, you can refer to the prior art (application number CN20192108 5966.4, Chinese Patent No. 5966.4, published on 2020-02-21, discloses a luggage drawbar fatigue tester. The fatigue tester has a fixing seat on the base, which can fix the bottom of the luggage placed on the base, and a fixing assembly is also provided on the vertical rod, which can fix the top of the luggage. After such a setting, when testing the luggage drawbar, the bottom and top of the luggage can be fixed, so that during the pulling process, the luggage is firmly fixed, the structure is stable, and the drawbar is convenient for pulling. Pull test; and a new type of luggage drawbar fatigue testing machine disclosed in the prior art (application number CN201310203926.6, published on September 18, 2013) is referred to. The testing machine adjusts the bottom plate working platform so that the pressure plate clamps the bottom of the luggage; the drawbar hooks in the reciprocating motion test device of the specimen luggage drawbar; and the upper part of the specimen luggage is pressed by the guide shaft; the distance between the drawbar hooks is adjusted by shaking the drawbar handwheel, and the bolts are tightened at the same time to achieve the clamping of the drawbar.

[0004] Although the above device can achieve the purpose of limiting and fixing, it still has certain shortcomings in actual use. When conducting a luggage pull rod test, many problems are faced. First of all, when conducting the test, it is necessary to consider the detection processing at different angles. Especially when the user is walking and the luggage is in an inclined setting, the force borne by the luggage pull rod is also different. The existing technology only performs vertical up and down detection, and cannot obtain a good test effect. Summary of the invention

[0005] The purpose of the present invention is to provide a fatigue testing machine and test method for luggage drawbar quality inspection, so as to solve the many problems faced by the testing machines currently on the market when conducting luggage drawbar tests as mentioned in the above background technology. First of all, when conducting the inspection, it is necessary to consider the inspection processing at different angles. In particular, when the user is walking and the luggage is in an inclined setting, the forces borne by the luggage drawbar are also different. The prior art only conducts vertical up and down inspections and cannot obtain good test results.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: a fatigue testing machine for quality inspection of luggage drawbars, comprising a fixed seat and a vertical plate fixed to one side of the top of the fixed seat, an electric push rod is installed at the top position of the vertical plate, and the output end of the electric push rod is fixed to one side of the detection frame to enable the detection frame to slide back and forth up and down; a movable plate is provided for internal sliding of the detection frame, and a fixed frame is rotatably connected to the bottom position of the movable plate, and a limiting mechanism is provided at the bottom of the fixed frame, and the limiting mechanism acts on the outside of the drawbar of the luggage body to facilitate subsequent test processing; the up and down back and forth movement of the detection frame can drive the bearing plate to move outside the fixed containing frame, and a fixing mechanism is provided on one side of the bearing plate, and the fixing mechanism can restrain luggage bodies of different sizes.

[0007] Preferably, the limiting mechanism includes a rotating screw rotatably arranged at the bottom of the fixed frame, the outer side of the rotating screw is threadedly connected to the inner side of the bonding block, and the outer side of the bonding block is slidably arranged on the inner side of the fixed frame, and an anti-slip pad is arranged on the inner side of the bonding block.

[0008] Preferably, a slide groove is provided on the inner side of the upper end of the detection frame, and the inner wall of the slide groove is fitted on the outer side of the movable plate. A piston rod is also fixed at the bottom position of the detection frame, and the outer side of the piston rod is fitted in the ventilation groove provided inside the vertical plate, and the outer side of the bottom of the ventilation groove is fitted on the outer side of the push rod, and the outer end position of the push rod corresponds to the side wall position of the luggage body, and a guide rod is fixed at one end of the luggage body away from the push rod, and the outer side of the guide rod is slidably arranged in the internal position of the accommodating plate, and the end of the guide rod extending into the interior of the accommodating plate is connected to the inner wall of the accommodating plate through a return spring.

[0009] Preferably, a first regulating valve is provided on the outer side of the ventilation groove at the side wall position of the vertical plate, the other end of the ventilation groove is communicated with the air pipe, one end of the push rod arranged inside the fixed seat is connected to the inner wall of the fixed seat through a spring, a second regulating valve is also provided at the connection position between the first regulating valve and the ventilation groove, and a roller is also provided for rolling at the bottom of the supporting plate.

[0010] Preferably, the bottom of the accommodating plate is rotatably connected to the right side of the fixing seat, and a torsion spring is further provided at the rotatable connection between the accommodating plate and the fixing seat. The rotation range of the accommodating plate is 0 degrees to 30 degrees.

[0011] Preferably, the fixing mechanism includes a bidirectional screw rod rotatably arranged inside the bearing plate, an end of the bidirectional screw rod is fixed at the output end position of the motor, and an outer side of the bidirectional screw rod is threadedly connected to the lower end of the limit member.

[0012] Preferably, a connecting shaft is rotatably provided at the lower end of the limit member, and the connecting shaft is threadedly connected to the bidirectional screw rod. An adjustment plate is slidably provided at the inner position of the upper end of the limit member, and the adjustment plate is fixed to the inner position of the limit member by a fixing block.

[0013] Preferably, the other end of the air delivery pipe extends into the interior of the fixed containing frame and is connected to the bottom end of the elastic airbag, and a plurality of groups of movable strips are fixed at equal intervals on the surface of the elastic airbag.

[0014] Preferably, the outer side of the movable strip extends out of the top position of the gas pipe, and the fixed receiving frame is located directly below the supporting plate.

[0015] A fatigue testing machine for luggage pull rod quality inspection is characterized in that a testing method of the fatigue testing machine is also disclosed, and the specific steps are as follows: S1: Place the bag body on the top of the bearing plate, and perform position limiting processing through the fixing mechanism set on the top of the bearing plate; S2: By adjusting the position of the detection frame, the detection frame is placed above the pull rod of the luggage body, and the limit mechanism provided on one side of the movable plate can limit the pull rod of the luggage body, and the detection frame can be driven by the electric push rod to move back and forth, so as to perform vertical detection, and the detection result is displayed on the display on one side of the fixed seat; S3: By opening the first regulating valve, the gas can flow into the interior of the ventilation groove, and then the gas can act on one side of the push rod, and then one end of the push rod can act on one side of the bearing plate, which will cause the bearing plate to drive the luggage body to adjust the position, and close the first regulating valve, and drive the detection frame to move the position again through the electric push rod, so that detection processing at different angles can be performed; S4: By opening the second regulating valve and the first regulating valve, not only can the bag body move back and forth, but the moving bar will also block the bottom of the bearing plate, which can simulate the uneven ground and facilitate detection.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the fatigue testing machine and the testing method for luggage drawbar quality inspection are provided with a limit mechanism, the limit mechanism is provided to limit the drawbar of the luggage body, the fixing mechanism can limit the luggage, and the electric push rod drives the detection frame to move, so that the detection process can be conveniently performed, and the first regulating valve or the first regulating valve and the second regulating valve are opened at the same time, so that the test process can be conveniently simulated under different conditions, and the specific contents are shown as follows: 1. A movable plate is provided, and the pull rod of the luggage body can be limited by the fitting block through the rotating screw rod provided on the top of the fixed frame. Furthermore, a movable plate is provided, and the movable plate and the fixed frame are rotatably arranged to adapt to detection processing at different angles, and the slide groove is provided to avoid interference during detection at different angles.

[0017] 2. A detection frame is set up, and the piston rod set at the bottom of the detection frame slides inside the vertical plate, so that the gas inside the vertical plate can act on one side of the top rod, so that the bearing plate and the fixed frame are no longer in a vertical line. After adjusting to the appropriate position, the first regulating valve is closed, and test processing at different angles can be carried out.

[0018] 3. A fixed containing frame is provided, and by opening the second regulating valve, the gas is delivered to the inside of the elastic airbag, so that the movable bar can move inside the fixed containing frame, and then the supporting plate can move back and forth, and the top of the fixed containing frame becomes uneven, so that it can adapt to the uneven ground for simulation tests. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the main structure of the present invention; Figure 2 It is a side view structural schematic diagram of the present invention; Figure 3 This is a schematic diagram of the top view of the detection frame of the present invention; Figure 4 For the present invention Figure 1The enlarged structural diagram at A in the middle; Figure 5 It is a schematic diagram of a partial cross-sectional structure of a vertical plate of the present invention; Figure 6 It is a schematic diagram of the side view structure of the bearing plate of the present invention; Figure 7 For the present invention Figure 6 The enlarged structural diagram at B in the middle; Figure 8 It is a schematic diagram of the cross-sectional structure of the receiving plate of the present invention; Fig. 9 It is a schematic diagram of the cross-sectional structure of the fixing frame of the present invention.

[0020] In the figure: 1. fixed seat; 2. vertical plate; 3. electric push rod; 4. detection frame; 41. slide groove; 42. piston rod; 5. movable plate; 6. fixed frame; 7. rotating screw rod; 8. fitting block; 9. ventilation groove; 10. push rod; 11. first regulating valve; 12. bearing plate; 121. roller; 13. luggage body; 14. two-way screw rod; 15. limiter; 151. connecting shaft; 152. fixed block; 153. adjusting plate; 16. guide rod; 17. containing plate; 18. reset spring; 19. torsion spring; 20. second regulating valve; 21. air supply pipe; 22. fixed containing frame; 23. elastic air bag; 24. moving strip. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 9 , the present invention provides the following technical solutions: Embodiment 1, in order to solve the many problems faced by the testing machines currently on the market when conducting luggage pull rod tests, first of all, when conducting the test, it is necessary to consider the detection processing at different angles, especially when the user is walking and the luggage is in an inclined setting, the force borne by the luggage pull rod is also different. The existing technology only performs vertical up and down detection, and the test results cannot be obtained well. Please refer to the attached Figure 1 -Attached Figure 8The up and down movement of the detection frame 4 can drive the bearing plate 12 to move outside the fixed accommodating frame 22. A fixing mechanism is arranged on one side of the bearing plate 12, and the setting of the fixing mechanism constrains the bag bodies 13 of different sizes; a first regulating valve 11 is arranged on the side wall of the vertical plate 2 on the outside of the ventilation groove 9, and the other end of the ventilation groove 9 is connected to the air pipe 21. One end of the push rod 10 arranged inside the fixed seat 1 is connected to the inner wall of the fixed seat 1 through a spring. A second regulating valve 20 is also arranged at the connection position between the first regulating valve 11 and the ventilation groove 9, and a roller 121 is also arranged on the bottom of the bearing plate 12; the bottom of the accommodating plate 17 is connected to the fixed seat 1 is a rotation connection between the right side, and a torsion spring 19 is also provided at the rotation connection between the accommodating plate 17 and the fixing seat 1, and the rotation range of the accommodating plate 17 is 0 degrees-30 degrees; the fixing mechanism includes a bidirectional screw rod 14 rotatably arranged inside the bearing plate 12, and the end of the bidirectional screw rod 14 is fixed at the output end position of the motor, and the outer side of the bidirectional screw rod 14 is threadedly connected to the lower end of the limiter 15; the lower end of the limiter 15 is rotatably provided with a connecting shaft 151, and the connecting shaft 151 and the bidirectional screw rod 14 are threadedly connected, and an adjusting plate 153 is slidably provided at the inner position of the upper end of the limiter 15, and the adjusting plate 153 is fixed to the inner position of the limiter 15 by a fixing block 152.

[0023] When it is necessary to inspect the bag body 13 at different angles, the detection frame 4 is driven to move by starting the electric push rod 3, and the piston rod 42 arranged at the bottom of the detection frame 4 will squeeze the gas inside the vertical plate 2. At this time, it is necessary to ensure that the first regulating valve 11 is in an open state, and the gas will be transported to one side of the push rod 10, so that the push rod 10 can squeeze the side wall position of the supporting plate 12, so that the bag body 13 is no longer in the same vertical direction as the bonding block 8, and the limit member 15 and the connecting shaft 151 are rotatably connected, and the rotation range is 0-30 degrees. At this time, the angle of the bag can also be adjusted, and then the pull rod is limited by the bonding block 8, and then the first regulating valve 11 is closed again, and the electric push rod 3 is started, so that the electric push rod 3 can drive the detection frame 4 to adjust the position, and then the test processing at different angles can be carried out through the bonding setting of the bonding block 8.

[0024] Embodiment 2: In order to facilitate the fatigue detection of luggage pull rods, please refer to the attached Figure 1 -Attached Figure 4, including a fixed seat 1 and a vertical plate 2 fixed to one side of the top of the fixed seat 1, an electric push rod 3 is installed at the top position of the vertical plate 2, and the output end of the electric push rod 3 is fixed to one side of the detection frame 4, so that the detection frame 4 can slide back and forth up and down; a movable plate 5 is slidingly arranged inside the detection frame 4, and a fixed frame 6 is rotatably connected to the bottom position of the movable plate 5, and a limiting mechanism is arranged at the bottom of the fixed frame 6, and the limiting mechanism acts on the outside of the pull rod of the luggage body 13, which is convenient for later test processing; the limiting mechanism includes a rotating screw rod 7 rotatably arranged at the bottom of the fixed frame 6, and the outer side of the rotating screw rod 7 is threadedly connected to the inner side of the bonding block 8, and the outer side of the bonding block 8 is slidably arranged on the inner side of the fixed frame 6, A non-slip pad is provided on the inner side of the locking block 8; a slide groove 41 is provided on the inner side of the upper end of the detection frame 4, and the inner wall of the slide groove 41 is fitted on the outer side of the movable plate 5. A piston rod 42 is also fixed to the bottom of the detection frame 4, and the outer side of the piston rod 42 is fitted in the ventilation groove 9 provided inside the vertical plate 2, and the bottom outer side of the ventilation groove 9 is fitted on the outer side of the push rod 10. The outer end position of the push rod 10 corresponds to the side wall position of the luggage body 13, and a guide rod 16 is fixed to the end of the luggage body 13 away from the push rod 10. The outer side of the guide rod 16 is slidably arranged in the inner position of the accommodating plate 17, and the end of the guide rod 16 extending into the accommodating plate 17 is connected to the inner wall of the accommodating plate 17 through a return spring 18.

[0025] First, place the bag body 13 on the surface of the bearing plate 12, and loosen the fixing block 152 to make the adjustment plate 153 adjustable so that the upper bottom position of the adjustment plate 153 fits the top of the bag body 13. Then, the output end of the motor drives the bidirectional screw rod 14 to rotate, so that the bidirectional screw rod 14 drives the threaded connecting shaft 151 to move, so that the connecting shaft 151 can drive the limiting member 15 to limit the side wall of the bag body 13, and limit it through the fixing block 152. Then, start the electric push rod 3, so that the electric push rod 3 drives the detection frame 4 to descend, so that the detection frame 4 and the movable plate 5 are above the pull rod, by moving the position of the movable plate 5 and rotating the rotating screw rod 7, the mobilization fitting block 8 of the rotating screw rod 7 fits the inner side of the pull rod, at this time, the electric push rod 3 can be started to move back and forth, and the electric push rod 3 can detect the pull rod of the bag body 13, and the obtained test results are displayed on the display screen.

[0026] Example 3: In order to simulate the uneven ground for detection processing, please refer to the attached Figure 1 -Attached Fig. 9 The other end of the air pipe 21 extends into the interior of the fixed accommodating frame 22 and is connected to the bottom end of the elastic airbag 23. A plurality of groups of movable bars 24 are fixed at equal intervals on the surface of the elastic airbag 23. The outer side of the movable bars 24 extends out of the top of the air pipe 21, and the fixed accommodating frame 22 is located directly below the supporting plate 12.

[0027] When conducting a test on an uneven ground, the first regulating valve 11 and the second regulating valve 20 are opened, and the luggage body 13 is limited. At this time, the pull rod of the luggage body 13 also needs to be limited in the internal position of the fixed frame 6. Then, the electric push rod 3 is started, and the detection frame 4 is moved. The piston rod 42 supplies gas to the inside of the vertical plate 2, and the gas will be transported through the ventilation groove 9, so that part of the gas is squeezed on one side of the bearing plate 12 through the top rod 10. The bearing plate 12 will move above the fixed containing frame 22 through the roller 121, and the other end of the bearing plate 12 is moved on the containing plate 17 through the guide rod 16. The interior relies on the reset spring 18 to move back and forth, and the other part of the gas will be transported to the inside of the elastic airbag 23 through the air supply pipe 21, so that the elastic airbag 23 expands inside the fixed accommodating frame 22, and the elastic airbag 23 drives the moving bar 24 to slide inside the fixed accommodating frame 22. At this time, the top position of the fixed accommodating frame 22 will become uneven. When the roller 121 rolls on the top of the fixed accommodating frame 22, the accommodating plate 17 can be rotated on one side of the top of the fixed seat 1 and reset by the torsion spring 19. At this time, the electric push rod 3 moves back and forth, and then the detection process is performed on the uneven ground.

[0028] A fatigue testing machine for luggage pull rod quality inspection, and a testing method of the fatigue testing machine are also disclosed, and the specific steps are as follows: S1: placing the bag body 13 on the top of the bearing plate 12, and performing position limiting processing through the fixing mechanism provided on the top of the bearing plate 12; S2: By adjusting the position of the detection frame 4, the detection frame 4 is placed above the pull rod of the luggage body 13, and the limit mechanism provided on one side of the movable plate 5 can limit the pull rod of the luggage body 13, and the detection frame 4 can be driven by the electric push rod 3 to move back and forth, so as to perform vertical detection, and the detection result can be displayed on the display on one side of the fixed seat 1; S3: By opening the first regulating valve 11, the gas can flow into the ventilation groove 9, and then the gas can act on one side of the push rod 10, and then one end of the push rod 10 can act on one side of the bearing plate 12, which will cause the bearing plate 12 to drive the bag body 13 to adjust the position, and close the first regulating valve 11, and drive the detection frame 4 to move the position again through the electric push rod 3, so that detection processing at different angles can be performed; S4: By opening the second regulating valve 20 and the first regulating valve 11, not only can the bag body 13 move back and forth, but the moving bar 24 will also block the bottom of the bearing plate 12, which can simulate the uneven ground, and thus facilitate the detection. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A fatigue testing machine for detecting the quality of luggage pull rods, comprising a fixed seat (1) and a vertical plate (2) fixed to one side of the top of the fixed seat (1), an electric push rod (3) being installed at the top of the vertical plate (2), and an output end of the electric push rod (3) being fixed to one side of a detection frame (4) so ​​as to enable the detection frame (4) to slide up and down; Features: A movable plate (5) is slidably arranged inside the detection frame (4), and a fixed frame (6) is rotatably connected to the bottom of the movable plate (5). A limiting mechanism is arranged at the bottom of the fixed frame (6), and the limiting mechanism acts on the outside of the pull rod of the bag body (13), so as to facilitate the subsequent test processing; The up and down reciprocating movement of the detection frame (4) can drive the bearing plate (12) to move outside the fixed containing frame (22); a fixing mechanism is provided on one side of the bearing plate (12); the setting of the fixing mechanism constrains bag bodies (13) of different sizes.

2. A fatigue testing machine for luggage drawbar quality inspection according to claim 1, characterized in that: The limiting mechanism comprises a rotating screw (7) rotatably arranged at the bottom of the fixed frame (6); the outer side of the rotating screw (7) is threadedly connected to the inner side of the fitting block (8); the outer side of the fitting block (8) is slidably arranged on the inner side of the fixed frame (6); and the inner side of the fitting block (8) is provided with an anti-slip pad.

3. A fatigue testing machine for luggage drawbar quality inspection according to claim 1, characterized in that: A slide groove (41) is provided on the inner side of the upper end of the detection frame (4), and the inner wall of the slide groove (41) is fitted on the outer side of the movable plate (5). A piston rod (42) is also fixed on the bottom of the detection frame (4), and the outer side of the piston rod (42) is fitted in the ventilation groove (9) provided inside the vertical plate (2). The outer side of the bottom of the ventilation groove (9) is fitted on the outer side of the push rod (10), and the outer end position of the push rod (10) corresponds to the side wall position of the bag body (13). A guide rod (16) is fixed on the end of the bag body (13) away from the push rod (10), and the outer side of the guide rod (16) is slidably arranged in the inner position of the accommodating plate (17). The end of the guide rod (16) extending into the accommodating plate (17) is connected to the inner wall of the accommodating plate (17) through a return spring (18).

4. A fatigue testing machine for luggage drawbar quality inspection according to claim 3, characterized in that: A first regulating valve (11) is arranged outside the ventilation groove (9) at a position on the side wall of the vertical plate (2); the other end of the ventilation groove (9) is connected to the air supply pipe (21); one end of the push rod (10) arranged inside the fixed seat (1) is connected to the inner wall of the fixed seat (1) through a spring; a second regulating valve (20) is also arranged at the connection position between the first regulating valve (11) and the ventilation groove (9); and a roller (121) is also rotatably arranged at the bottom of the bearing plate (12).

5. A fatigue testing machine for luggage drawbar quality inspection according to claim 3, characterized in that: The bottom of the accommodating plate (17) is rotatably connected to the right side of the fixing seat (1), and a torsion spring (19) is also provided at the rotatable connection between the accommodating plate (17) and the fixing seat (1). The rotatable range of the accommodating plate (17) is 0 degrees to 30 degrees.

6. A fatigue testing machine for luggage drawbar quality inspection according to claim 3, characterized in that: The fixing mechanism comprises a bidirectional screw rod (14) rotatably arranged inside the bearing plate (12), the end of the bidirectional screw rod (14) being fixed at the output end of the motor, and the outer side of the bidirectional screw rod (14) being threadedly connected to the lower end of the limiter (15).

7. A fatigue testing machine for luggage drawbar quality inspection according to claim 6, characterized in that: A connecting shaft (151) is rotatably provided at the lower end of the limiting member (15), and the connecting shaft (151) is threadedly connected to the bidirectional screw rod (14). An adjusting plate (153) is slidably provided at the inner side of the upper end of the limiting member (15), and the adjusting plate (153) is fixed to the inner side of the limiting member (15) by means of a fixing block (152).

8. The fatigue testing machine for luggage drawbar quality inspection according to claim 4, characterized in that: The other end of the air delivery pipe (21) extends into the interior of the fixed accommodation frame (22) and is connected to the bottom end of the elastic airbag (23). A plurality of groups of movable strips (24) are fixed at equal intervals on the surface of the elastic airbag (23).

9. A fatigue testing machine for luggage drawbar quality inspection according to claim 8, characterized in that: The outer side of the movable strip (24) extends out of the top of the gas delivery pipe (21), and the fixed receiving frame (22) is located directly below the bearing plate (12).

10. A fatigue testing machine for luggage drawbar quality inspection according to claim 1, characterized in that: A test method of the fatigue testing machine is also disclosed, and the specific steps are as follows: S1: placing the bag body (13) on the top of the bearing plate (12), and performing position limiting processing through a fixing mechanism provided on the top of the bearing plate (12); S2: By adjusting the position of the detection frame (4), the detection frame (4) is located above the pull rod of the luggage body (13), and the limit mechanism provided on one side of the movable plate (5) can limit the pull rod of the luggage body (13), and the detection frame (4) can be driven to move back and forth by the electric push rod (3), so that the detection process in the vertical direction can be carried out, and the detection result is displayed on the display on one side of the fixed seat (1); S3: by opening the first regulating valve (11), the gas can flow into the interior of the ventilation groove (9), so that the gas can act on one side of the push rod (10), so that one end of the push rod (10) can act on one side of the bearing plate (12), so that the bearing plate (12) drives the bag body (13) to adjust its position, and the first regulating valve (11) is closed, and the detection frame (4) is driven to move its position again through the electric push rod (3), so that detection processing at different angles can be performed; S4: By opening the second regulating valve (20) and the first regulating valve (11), not only can the bag body (13) be moved back and forth, but the moving bar (24) can also block the bottom of the supporting plate (12), thereby simulating an uneven ground surface, thereby facilitating detection.

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