Tension testing machine for escalator

Abstract

The utility model relates to the technical field of escalator detection, in particular to an escalator tension testing machine, and solves the technical problem that the existing escalator tension testing machine lacks universality. The tension testing machine comprises a base, a supporting mechanism and a tension applying mechanism, the supporting mechanism comprises a supporting seat and a first supporting structure, the supporting seat is used for supporting and fixing the upper portion of the escalator, the first supporting structure comprises a driving device and a supporting assembly capable of stretching and deforming, and one end of the supporting assembly is connected with the supporting seat; the other end of the supporting assembly is connected with the base through a driving device, and the driving device can drive the supporting assembly to stretch and deform and fix the supporting assembly to be unchanged. The tensile force applying mechanism is arranged on the base and can apply tensile force to the escalator, so that the escalator is subjected to a tensile force test. According to the utility model, the form of the support assembly can be flexibly adjusted according to escalator ladders with different heights, so that the test requirements of escalator ladders with different heights can be effectively met.

Description

TECHNICAL FIELD

[0001] The utility model relates to handrail ladder detection technical field especially relates to a handrail ladder tension testing machine. BACKGROUND

[0002] Yacht handrail ladder detection is an important link of ensuring yacht safety performance, involves multiple aspects, aims at overall evaluation handrail ladder quality, safety and reliability, guarantees the safety of personnel in the use process of yacht, therefore, the tension test of yacht handrail ladder is very important.

[0003] However, the current handrail ladder tension testing machine is usually designed only for specific height handrail ladder, lacks universality. For different height handrail ladder, often need to be equipped with different specifications of test equipment, this not only increases the equipment procurement cost, also occupies a large amount of storage space. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a kind of handrail ladder tension testing machine, with the characteristics of being applicable to the tension test of handrail ladder of different heights.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A kind of handrail ladder tension testing machine, comprising:

[0007] Base;

[0008] Support mechanism, the support mechanism includes support seat and first support structure, the support seat is used to support and fix the upper portion of handrail ladder, the first support structure includes driving device and the support assembly that can be telescopic deformation, one end of the support assembly is connected with the support seat, the other end of the support assembly is connected with the base by the driving device, the driving device can drive the support assembly telescopic deformation and fix the support assembly unchanged;And,

[0009] Tension applying mechanism, the tension applying mechanism is set on the base, and the tension applying mechanism can exert tension on handrail ladder, so that handrail ladder carries out tension test.

[0010] Further, the support assembly includes at least one support portion that can be telescopic deformation, the support portion includes first support bar and second support bar, the first support bar and the second support bar are cross-shaped and hinged.

[0011] Further, the number of the support parts is multiple, the multiple support parts are sequentially hinged to form the support assembly, the first support strip of the support part located at the lower part is hinged to the second support strip of the support part located at the upper part, and the second support strip of the support part located at the lower part is hinged to the first support strip of the support part located at the upper part.

[0012] Further, the driving device comprises a fixed support, a sliding block and a first cylinder, the fixed support is connected with the base, one end of the fixed support is hinged to the adjacent first support strip, the sliding block is slidingly connected with the base, the sliding block is connected with the output shaft of the first cylinder, and one end of the sliding block is hinged to the adjacent second support strip; the support base is hinged and slidingly connected with one end of the adjacent first support strip, and the support base is hinged with one end of the adjacent second support strip.

[0013] Further, the support mechanism further comprises a plurality of uniformly arranged second support structures, the second support structure comprises a first support rod, a second support rod and a limiting piece, the first support rod is internally hollow, one end of the first support rod is connected with the support base, the other end of the first support rod is slidingly sleeved with one end of the second support rod, the other end of the second support rod is connected with the base, and the limiting piece is used for locking the first support rod at a specified position of the second support rod.

[0014] Further, the surface of the second support rod is provided with external threads, the limiting piece is threadedly connected with the second support rod, and the outer diameter of the limiting piece is greater than the outer diameter of the first support rod.

[0015] Further, the tension applying mechanism comprises a traction machine and a pull hook, the traction machine is arranged on the base, the traction machine is connected with the pull hook, and the pull hook is connected with the handrail ladder.

[0016] Further, the tension applying mechanism further comprises a tension display, the tension display is connected with the traction machine, and the tension display is arranged on the base.

[0017] Further, the tension testing machine further comprises a pressing mechanism for fixing the upper part of the handrail ladder, and the pressing mechanism is connected with the support base.

[0018] Further, the pressing mechanism comprises a pressing plate and a second cylinder, the pressing plate is arranged on the top of the support base, the second cylinder is connected with the bottom of the support base, and the output end of the second cylinder penetrates through the support base and is connected with the pressing plate.

[0019] The technical scheme provided by the utility model can have the following beneficial effects:

[0020] The utility model discloses according to the height of the handrail ladder of testing, through the drive arrangement driving support assembly telescopic deformation, make the height of support seat get the adjustment, to adapt to the height of the handrail ladder, again, the handrail ladder is fixed with support seat, and the handrail ladder is applied pressure through the tension exerting mechanism, thereby the handrail ladder is tension tested. That is, the utility model can be according to the handrail ladder of different height, the form of support assembly is adjusted flexibly, thereby effectively adapt to the test demand of different height handrail ladder, overcome the problem that the existing testing machine is only designed for the specific height handrail ladder and lacks the universality, greatly reduces the equipment procurement cost, and a large amount of storage space is saved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural schematic diagram of the handrail ladder tension testing machine of an embodiment of the utility model;

[0022] Figure 2 It is the structural schematic diagram of the handrail ladder tension testing machine of an embodiment of the utility model Figure 1 Among them, the local enlarged view of A place;

[0023] Among them, the local enlarged view of A place; Wherein, base 1, support mechanism 2, support seat 3, first support structure 4, handrail ladder 5, drive arrangement 6, support assembly 7, tension exerting mechanism 8, support part 9, first support strip 10, second support strip 11, fixed support 12, sliding block 13, first air cylinder 14, second support structure 15, first support rod 16, second support rod 17, limit piece 18, traction machine 19, pull hook 20, tension display 21, compression mechanism 22, pressboard 23. DETAILED DESCRIPTION

[0024] The embodiments of the utility model are described in detail below, and the examples of the embodiments are shown in the drawings, wherein the same or similar signs represent the same or similar elements or elements with the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the utility model, and cannot be understood as limiting the utility model.

[0025] In the description of the utility model, it is understood that the orientation or position relationship indicated by the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, only for the convenience of describing the utility model and simplifying the description, and cannot be understood as limiting the indicated device or element to have a particular orientation, to be constructed and operated in a particular orientation, therefore, cannot be understood as limiting the utility model. In addition, the features limited by "first", "second" can be explicitly or implicitly include one or more features, for distinguishing the described features, without order, without difference.

[0026] In the description of the utility model, unless otherwise specified, the meaning of "multiple" is two or more than two.

[0027] In the description of the utility model, it is necessary to explain that, unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood broadly, for example, it can be fixed connection, can be detachable connection, or integrally connected, can be mechanical connection, can be electrical connection, can be directly connected, can be indirectly connected through intermediate medium, can be the communication inside two elements.The above-mentioned terms in the utility model can be understood according to specific circumstances by the person skilled in the art.

[0028] The handrail ladder tension testing machine is described below in conjunction with Figures 1 to 2 The utility model discloses a handrail ladder tension testing machine.

[0029] A handrail ladder tension testing machine comprises:

[0030] A base 1 is provided.

[0031] A supporting mechanism 2 comprises a supporting seat 3 and a first supporting structure 4, the supporting seat 3 is used for supporting and fixing the upper part of a handrail ladder 5, the first supporting structure 4 comprises a driving device 6 and a supporting assembly 7 capable of telescopic deformation, one end of the supporting assembly 7 is connected with the supporting seat 3, the other end of the supporting assembly 7 is connected with the base 1 through the driving device 6, the driving device 6 can drive the supporting assembly 7 to deform telescopically and fix the supporting assembly 7 to remain unchanged, and

[0032] A tension applying mechanism 8 is arranged on the base 1, and the tension applying mechanism 8 can apply tension to the handrail ladder 5 to perform tension test on the handrail ladder 5.

[0033] Specifically, during testing, the handrail ladder 5 to be tested is placed in the working area of the tension testing machine, the driving device 6 is started according to the height of the handrail ladder 5 to be tested, the driving device 6 drives the supporting assembly 7 to deform telescopically, so that the height of the supporting seat 3 is preliminarily adjusted, the upper part of the handrail ladder 5 is in contact with the supporting seat 3 and is fixed.If the fixed height of the handrail ladder 5 is not suitable, the supporting assembly 7 is driven to deform telescopically through the driving device 6 again until the fixed height of the handrail ladder 5 is adjusted to a suitable position.The tension applying mechanism 8 is started, the tension applying mechanism 8 applies tension to the handrail ladder 5, and the tension test of the handrail ladder 5 is started.

[0034] For example, the number of the first support structures 4 can be two, and the two first support structures 4 are symmetrically arranged on both sides of the support base 3, so that the force balance distribution in the horizontal direction can be achieved. When the handrail ladder 5 is subjected to the tension test, the tension is transmitted to the first support structures 4 through the support base 3, and the two symmetrically arranged first support structures 4 can evenly share the reaction force generated by the tension.

[0035] According to the height of the tested handrail ladder 5, the tension testing machine described in the above embodiment drives the support assembly 7 to deform in an extension and retraction mode through the driving device 6, so that the height of the support base 3 is adjusted to adapt to the handrail ladder 5 of the height, and then the handrail ladder 5 is fixed with the support base 3, and the tension testing machine applies pressure to the handrail ladder 5 through the tension applying mechanism 8, so as to test the handrail ladder 5. That is, the utility model can flexibly adjust the mode of the support assembly 7 according to the handrail ladder 5 of different heights, so as to effectively adapt to the testing requirements of the handrail ladder 5 of different heights, overcome the problem that the existing testing machine is designed only for the handrail ladder 5 of a specific height and lacks universality, greatly reduce the equipment procurement cost, save a large amount of storage space, and at the same time, the tension testing machine can be conveniently stored.

[0036] In another embodiment, the support assembly 7 comprises at least one support part 9 capable of deforming in an extension and retraction mode, and the support part 9 comprises a first support bar 10 and a second support bar 11, and the first support bar 10 and the second support bar 11 are cross-shaped and hinged.

[0037] Specifically, taking a single support part 9 as an example, when the driving device 6 drives the support assembly 7 to deform in an extension and retraction mode, the hinge point between the first support bar 10 and the second support bar 11 allows them to rotate relative to each other, so as to change the cross angle. With the change of the cross angle, the height of the support part 9 as a whole changes, so as to realize the deformation in an extension and retraction mode, and thus the height of the support base 3 is adjusted. For example, when the driving device 6 changes the included angle between the first support bar 10 and the second support bar 11 to be smaller, the support part 9 as a whole is extended; on the contrary, when the included angle between the first support bar 10 and the second support bar 11 is larger, the support part 9 as a whole is shortened. Through the simple cross-hinged structure design of the first support bar 10 and the second support bar 11, compared with the complex mechanical structure, the support part 9 is easy to manufacture, install and maintain.

[0038] In another embodiment, the number of the support parts 9 is multiple, the multiple support parts 9 are sequentially hinged to form the support assembly 7, the first support bar 10 of the support part 9 located at the lower part is hinged with the second support bar 11 of the support part 9 located at the upper part, and the second support bar 11 of the support part 9 located at the lower part is hinged with the first support bar 10 of the support part 9 located at the upper part.

[0039] It should be noted that each first support bar 10 of each support part 9 is parallel to each other, and each second support bar 11 of each support part 9 is parallel to each other.

[0040] Specifically, when the driving device 6 works, it will exert force on the lowermost support part 9 connected thereto. Since the first support bar 10 of the support part 9 is hinged with the second support bar 11 of the adjacent upper support part 9, and the second support bar 11 is hinged with the first support bar 10 of the adjacent upper support part 9, this connection mode enables the force to be transmitted upward in turn. In the process of force transmission, the hinge points between the first support bar 10 and the second support bar 11 of each support part 9 allow them to rotate relatively, changing the crossing angle. When the lowermost support part 9 changes shape under the action of the driving device 6, the angle change will drive the relevant support bars of the upper support part 9 hinged thereto to move, and in turn make the upper support part 9 also change in angle, realizing the telescopic deformation. In this way, the telescopic deformation effects of the plurality of support parts 9 are superimposed on each other, forming the overall telescopic deformation of the entire support assembly 7. For example, the driving device 6 pushes the lower support part 9 to make the included angle between the first support bar 10 and the second support bar 11 smaller, and the lower support part 9 is elongated, while pulling the first support bar 10 and the second support bar 11 of the upper support part 9 hinged thereto, driving the upper support part 9 to also deform correspondingly, and the entire support assembly 7 increases in height; conversely, the height decreases. Through the sequential hinging and cooperative work of the plurality of support parts 9, the adjustable height range of the support assembly 7 is greatly increased, which can meet the test requirements of more handrail ladders 5 of different heights, and further improve the versatility of the testing machine.

[0041] In another embodiment, the driving device 6 includes a fixed support 12, a sliding block 13 and a first cylinder 14, the fixed support 12 is connected with the base 1, the fixed support 12 is hinged with one end of the adjacent first support bar 10, the sliding block 13 is slidingly connected with the base 1, and the sliding block 13 is connected with the output shaft of the first cylinder 14, the sliding block 13 is hinged with one end of the adjacent second support bar 11; the support seat 3 is hinged and slidingly connected with one end of the adjacent first support bar 10, and the support seat 3 is hinged with one end of the adjacent second support bar 11.

[0042] Specifically, when the height of the support assembly 7 needs to be adjusted to adapt to handrail ladders 5 of different heights, the first air cylinder 14 is started. The extension and retraction of the piston of the first air cylinder 14 drives the movement of the output shaft, which in turn pushes or pulls the sliding block 13 connected thereto to slide on the base 1. During the sliding of the sliding block 13, since the sliding block 13 is hingedly connected to one end of the adjacent second support bar 11, an acting force is applied to the second support bar 11, causing the second support bar 11 to rotate about the hinge point between the second support bar 11 and the adjacent support part 9. Meanwhile, the fixed support 12 is hingedly connected to one end of the adjacent first support bar 10 and is fixed in position, and when the second support bar 11 rotates, the first support bar 10 is also caused to rotate about the hinge point between the first support bar 10 and the support part 9 through the hinged connection between the support parts 9, and the telescopic deformation of the support assembly 7 is realized under the sliding cooperation of the uppermost first support bar 10 and the support seat 3. During the entire process, only the action of the first air cylinder 14 needs to be controlled, and the telescopic deformation of the support assembly 7 and the height adjustment of the support seat 3 can be conveniently realized, which is simple and easy to operate, reduces the labor intensity of the operator, and improves the testing efficiency.

[0043] In another embodiment, the support mechanism 2 further comprises a plurality of uniformly arranged second support structures 15, each of which comprises a first support rod 16, a second support rod 17, and a limiting piece 18. The first support rod 16 has a hollow interior, and one end of the first support rod 16 is connected to the support seat 3, and the other end of the first support rod 16 is slidingly sleeved on one end of the second support rod 17, and the other end of the second support rod 17 is connected to the base 1. The limiting piece 18 is used to lock the first support rod 16 at a specified position of the second support rod 17.

[0044] Specifically, when the height of the support seat 3 is adjusted, the limiting piece 18 is first disassembled or moved away from the first support rod 16, and when the support assembly 7 is telescoped, the support seat 3 drives the first support rod 16 to slide on the second support rod 17, so that the height of the second support structure 15 changes accordingly. When the height adjustment of the support seat 3 is completed, the limiting piece 18 is installed, so that the first support rod 16 cannot continue to slide along the second support rod 17, that is, the limiting piece 18 fixes the relative position of the first support rod 16 and the second support rod 17. The second support structure 15 provides an additional support point for the support seat 3, and cooperates with the first support structure 4 to form a more stable support system. When the handrail ladder 5 is subjected to a tensile test, it can better withstand the reaction force generated by the tensile force of the handrail ladder 5, prevent the support seat 3 from shaking or displacing, and improve the accuracy and safety of the test.

[0045] For example, the number of the second support structures 15 is four, and the four second support structures 15 are evenly arranged at the positions of the four corners of the support base 3, so that the support base 3 can be uniformly stressed in each direction. When the handrail ladder 5 is subjected to the tension test, the reaction force generated by the tension force borne by the handrail ladder 5 is uniformly distributed to the support base 3, and the second support structures 15 at the four corners can effectively transmit the force to the base 1, so that the support base 3 can keep a stable balance state in the horizontal and vertical directions, and the inclination or shaking of the support base 3 due to uneven stress can be prevented.

[0046] In another embodiment, the surface of the second support rod 17 is provided with external threads, the limiting member 18 is threadedly connected with the second support rod 17, and the outer diameter of the limiting member 18 is greater than the outer diameter of the first support rod 16.

[0047] Specifically, after the height of the support base 3 is adjusted, the limiting member 18 is rotated and moved along the second support rod 17 to the position where the limiting member 18 is in contact with the first support rod 16. At this time, the limiting member 18 prevents the first support rod 16 from continuing to slide, so that the relative position of the first support rod 16 and the second support rod 17 is fixed. Conversely, when the height of the support base 3 needs to be adjusted, the limiting member 18 is rotated and moved along the second support rod 17 to the position away from the first support rod 16, and then the driving device 6 is started to drive the support assembly 7 to extend or retract. The thread connection has self-locking property, and under the action of no external force, the thread connection between the limiting member 18 and the second support rod 17 can keep relatively stable, and will not be loosened due to the vibration of the equipment itself or slight external force interference. Meanwhile, during the tension test of the handrail ladder 5, even if the height of the support mechanism 2 is affected by the reaction force generated by the tension force, the height of the support mechanism 2 can keep stable, so that the test can be safely and accurately carried out.

[0048] In another embodiment, the tension applying mechanism 8 comprises a traction machine 19 and a pull hook 20, the traction machine 19 is arranged on the base 1, the traction machine 19 is connected with the pull hook 20, and the pull hook 20 is connected with the handrail ladder 5.

[0049] Specifically, the traction machine 19 serves as a power source, and after being started, the driving device 6 (such as a motor, a hydraulic system, etc., which is determined according to the type of the traction machine 19) in the traction machine 19 starts to work and generates a tension force, which is transmitted to the pull hook 20 through the connecting component (such as a steel wire rope, a chain, etc.) between the traction machine 19 and the pull hook 20. When the pull hook 20 is subjected to the tension force from the traction machine 19, the tension force is applied to the handrail ladder 5, so that the handrail ladder 5 is subjected to the stretching force, and the tension test of the handrail ladder 5 is realized. The tension test of the handrail ladder 5 by the traction machine 19 can accurately output the tension force of a set size, and the stability of the tension force can be kept during the test.

[0050] In another embodiment, the tension applying mechanism 8 further comprises a tension display 21, which is connected with the traction machine 19 and is arranged on the base 1.

[0051] Specifically, the traction machine 19 measures the tension applied on the draw hook 20 in real time during operation, and converts the tension signal into an electric signal, which is transmitted to the tension display 21 through a wire. The tension display 21 processes and analyzes the input electric signal, and converts it into a digital or analog signal form for display and reading. The tension display 21 can display the current tension value in real time, so that the operator can determine whether the test is proceeding normally or whether there are abnormal conditions according to the real-time data during the test, so as to take appropriate measures if necessary.

[0052] In another embodiment, the tension testing machine further comprises a pressing mechanism 22 for fixing the upper part of the handrail 5, which is connected with the support base 3.

[0053] Specifically, when the handrail 5 is tested for tension, the pressing mechanism 22 applies stable pressure to the upper part of the handrail 5 to firmly fix the handrail 5 on the support base 3, which cooperates with the supporting mechanism 2 to form a stable test platform.

[0054] In another embodiment, the pressing mechanism 22 comprises a pressing plate 23 and a second cylinder. The pressing plate 23 is arranged on the top of the support base 3, and the second cylinder is connected with the bottom of the support base 3, and the output end of the second cylinder passes through the support base 3 and is connected with the pressing plate 23.

[0055] Specifically, when the upper part of the handrail 5 needs to be fixed, the second cylinder is started. The second cylinder drives the output end connected thereto to move downward through the piston. When the output end moves downward, it drives the pressing plate 23 to move downward, thereby applying pressure to the upper part of the handrail 5 placed on the top of the support base 3. Conversely, the pressing plate 23 can be moved away from the handrail 5 by driving it upward through the output end of the second cylinder. By adjusting the parameters such as the intake amount or working pressure of the second cylinder, the pressure applied by the pressing plate 23 can be controlled, so that the handrail 5 is tightly pressed on the support base 3, thereby achieving reliable fixation of the upper part of the handrail 5.

[0056] Other components of the handrail tension testing machine according to the embodiments of the present application and the operation thereof are known to those skilled in the art, and will not be described in detail here.

[0057] In the description of the present specification, the description referring to the terms "embodiment", "example", and the like means that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present 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 can be combined in any one or more embodiments or examples in a suitable manner.

[0058] Although the embodiments of the present application have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions, and variations can be made thereto without departing from the principles and spirit of the present application, and the scope of the present application is defined by the claims and their equivalents.

Claims

1. A handrail pull test machine characterized by, The utility model relates to a handrail ladder tension testing machine, which comprises a base, a supporting mechanism, and a tension applying mechanism. The supporting mechanism comprises a supporting seat and a first supporting structure, the supporting seat is used for supporting and fixing the upper part of the handrail ladder, the first supporting structure comprises a driving device and a supporting assembly capable of telescopic deformation, one end of the supporting assembly is connected with the supporting seat, the other end of the supporting assembly is connected with the base through the driving device, and the driving device can drive the supporting assembly to telescopically deform and fix the supporting assembly. The tension applying mechanism is arranged on the base and can apply tension to the handrail ladder to make the handrail ladder perform tension test. The supporting assembly comprises at least one supporting part capable of telescopic deformation, the supporting part comprises a first supporting strip and a second supporting strip, and the first supporting strip and the second supporting strip are cross-shaped and hinged. The number of the supporting parts is multiple, the multiple supporting parts are sequentially hinged to form the supporting assembly, the first supporting strip of the supporting part located at the lower part is hinged with the second supporting strip of the supporting part located at the upper part, and the second supporting strip of the supporting part located at the lower part is hinged with the first supporting strip of the supporting part located at the upper part.

2. The handrail pull test machine of claim 1, wherein, The driving device comprises a fixed support, a sliding block, and a first cylinder, the fixed support is connected with the base, one end of the adjacent first supporting strip is hinged with the fixed support, the sliding block is slidingly connected with the base, the output shaft of the first cylinder is connected with the sliding block, and one end of the adjacent second supporting strip is hinged with the sliding block; the supporting seat is hinged and slidingly connected with one end of the adjacent first supporting strip, and the supporting seat is hinged with one end of the adjacent second supporting strip.

3. The handrail pull test machine of claim 2, wherein, The supporting mechanism further comprises a plurality of uniformly arranged second supporting structures, each second supporting structure comprises a first supporting rod, a second supporting rod, and a limiting piece, the first supporting rod has a cavity, one end of the first supporting rod is connected with the supporting seat, the other end of the first supporting rod is slidingly sleeved with one end of the second supporting rod, the other end of the second supporting rod is connected with the base, and the limiting piece is used for locking the first supporting rod at a specified position of the second supporting rod.

4. The handrail pull test machine of claim 3, wherein, The surface of the second supporting rod is provided with external threads, the limiting piece is threadedly connected with the second supporting rod, and the outer diameter of the limiting piece is greater than the outer diameter of the first supporting rod.

5. The handrail pull test machine of claim 1, wherein, The tension applying mechanism comprises a traction machine and a pulling hook, the traction machine is arranged on the base, the traction machine is connected with the pulling hook, and the pulling hook is connected with the handrail ladder.

6. The handrail pull test machine of claim 5, wherein, The tension applying mechanism further comprises a tension display, the tension display is connected with the traction machine, and the tension display is arranged on the base.

7. The handrail pull test machine of claim 1, wherein The tension testing machine further comprises a pressing mechanism used for fixing the upper part of the handrail ladder, and the pressing mechanism is connected with the supporting seat.

8. The handrail pull test machine of claim 7, wherein, The pressing mechanism comprises a pressing plate and a second cylinder, the pressing plate is arranged on the top of the supporting seat, the second cylinder is connected with the bottom of the supporting seat, and the output end of the second cylinder penetrates through the supporting seat and is connected with the pressing plate.

9. The handrail pull test machine of claim 1, wherein, ​ 10. The handrail pull test machine of claim 9, wherein, ​

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