A railing horizontal thrust automatic detection system and a testing method

Abstract

The present application provides a kind of railing horizontal thrust automation detection system and test method, belong to railing quality detection technical field, including the support mechanism for fixed horizontal displacement detection mechanism, the side of support mechanism away from railing is equipped with positioning system, positioning system includes the lifting mechanism for driving pulley assembly lifting, lifting mechanism is used to adjust the height of pulley assembly, in turn make pulley assembly and the traction rope between railing handrail keep level;Traction rope, one end of traction rope is connected with railing handrail, traction rope passes through and is wound on pulley assembly, the other end of traction rope is fixed on bridge deck, traction rope is connected with hydraulic traction mechanism and force value sensor;The present application is light in weight, small in size, easy to transport and store;And installation, disassembly is easy, can adapt to most bridge railing detection, strong adaptability.

Description

Technical Field

[0001] This invention generally relates to the field of railing quality inspection technology. More specifically, this invention relates to an automated detection system and method for railing horizontal thrust. Background Technology

[0002] Effectively detecting the horizontal thrust of bridge railings plays a vital role in the subsequent quality maintenance of railings and the personal safety of users.

[0003] Currently, most testing units have their own set of testing methods and equipment, and have achieved certain results. However, the loading devices are large in size, take up a lot of space when stored, are heavy, and are inconvenient to use during the testing process. Furthermore, the height of the equivalent horizontal concentrated load needs to be manually adjusted.

[0004] For example, utility model patent CN211553271U discloses a device for testing the horizontal thrust of railings. This device has good testing stability, does not shift backward during testing, and can adjust the height of the hydraulic device, resulting in good maintenance performance. However, the device is relatively large in size, making it inconvenient to transport and store, and thus has certain limitations.

[0005] Some testing units have changed their approach, adopting a pull-based method instead of a push-based method, and designed new testing devices.

[0006] Utility model patent CN213301870U discloses a railing horizontal thrust detection device. This device improves the original outward push test to an inward pull test, which can prevent the railing from breaking and falling during the push process, thus ensuring good safety. However, it occupies a large space and has similar problems to the aforementioned technical solutions.

[0007] To address the problems with the aforementioned measuring devices, invention patent CN111766157A discloses an anchor-type railing horizontal thrust detection device and its implementation method. This device is an anchor-type detection device, small in size, requiring little storage space, and offering good convenience. However, the device also has significant drawbacks. First, the hydraulic mechanism is located on the side of the railing, making it difficult to lift even a portable hydraulic device to the railing height, even if it is a portable one. Second, railings generally lack structures to support the hydraulic device, and the flexible traction rope does not provide support. Therefore, workers must hold the hydraulic device for a period of time, waiting for it to extend and then tighten against the railing for fixation. This is not only time-consuming and laborious but also extremely dangerous. Furthermore, the hydraulic device relies solely on friction for fixation, and the railing may deform and tilt as the tension changes, posing a risk of the hydraulic device detaching, which is very dangerous. Finally, the device is easily affected by the usage scenario and has significant limitations. For example, since the structure is fixed by hydraulic devices, it can only detect cuboid railings and has great difficulty in detecting cylindrical railings. Also, permanent magnet lifters are difficult to play an effective role in fixing concrete bridge decks and are greatly affected by the usage scenario. Summary of the Invention

[0008] This invention provides an automated detection system for the horizontal thrust of railings, addressing the technical problem in existing technologies where the traction rope tilts with the deformation of the railing, leading to errors in the measured horizontal tension and thus affecting experimental results. Simultaneously, this invention also provides a method for testing the horizontal thrust of bridge railings.

[0009] To solve the above problems, the automated detection system and testing method for horizontal thrust of railings provided by the present invention adopts the following technical solution: it includes a support mechanism for supporting a horizontal displacement detection mechanism, the horizontal displacement detection mechanism for measuring the horizontal displacement of the railing, and the support mechanism is provided with a height adjustment structure so that the axis of the horizontal displacement detection mechanism and the railing handrail are on the same horizontal plane during the detection. The positioning system is located on the side of the support mechanism away from the railing. It includes a lifting mechanism, a support frame at the bottom of the lifting mechanism, and a pulley assembly at the top of the lifting mechanism for changing the direction of the pulling force. The support frame is also equipped with a height detection mechanism for detecting the real-time height of the railing handrail. When the height detection mechanism detects a change in the height of the railing handrail due to deformation, the lifting mechanism drives the adjustment of the height of the pulley assembly, thereby keeping the traction rope between the pulley assembly and the railing handrail always horizontal. The traction rope has one end connected to the handrail, passes through and is wound around the pulley assembly, and the other end is fixed. A hydraulic traction mechanism and a force sensor are connected to the traction rope.

[0010] As a further improvement, the lifting mechanism includes a screw jack, a reducer is provided on the side of the screw jack, a drive motor is installed on the side of the reducer away from the screw jack, the power input shaft of the screw jack is connected to the output shaft of the reducer, and the output shaft of the reducer is connected to the output shaft of the drive motor.

[0011] As a further improvement, the height detection mechanism is a radar sensor, which is used to scan and locate the height of the railing to be measured. The radar sensor and the drive motor are both electrically connected to the industrial control computer.

[0012] As a further improvement, the horizontal displacement detection mechanism is a dial indicator.

[0013] As a further improvement, the pulley assembly includes a bracket with a top rod mounted at the bottom of the bracket, the top rod being fixed to the screw jack, and a fixed pulley being rotatably connected inside the bracket.

[0014] As a further improvement, the support frame is a tripod, with a platform plate fixedly connected to the top of the tripod.

[0015] As a further improvement, the support mechanism includes a base for connecting the bridge deck, with a small-diameter leg section connected to the center of the upper surface of the base, and a large-diameter leg section threadedly connected to the upper end of the small-diameter leg section.

[0016] As a further improvement, a locking ring is also fitted on the small diameter section of the outrigger. When the large diameter section of the outrigger is adjusted to a suitable position, the locking ring is used to lock the large diameter section of the outrigger to prevent it from moving downward.

[0017] As a further improvement, a connecting slot is installed on the upper side of the large-diameter section of the outrigger for fixing the horizontal displacement detection mechanism.

[0018] The present invention also provides a method for measuring the horizontal thrust of a bridge railing using the above-mentioned detection system, comprising the following steps: Fix the support mechanism, measure the set distance from the railing to be tested, then fix the support mechanism, adjust the height of the support mechanism, and install the dial indicator on the support mechanism so that the measuring needle of the dial indicator contacts the railing handrail to be tested. Place the positioning system on the side of the support mechanism away from the railing, and adjust the pulley assembly of the positioning system to keep the tension of the traction rope horizontal; The anchor bolts are fixed to the bridge deck at the fixed stress points. A force sensor and hydraulic traction mechanism are mounted on a traction rope, with one end of the rope connected to the handrail to be tested. The traction rope is wound around a pulley assembly, and the other end is connected to the anchor bolt. After starting the test and connecting all components to the power supply, measure the force and horizontal displacement of the railing.

[0019] The beneficial effects are: 1. This invention is lightweight, small in size, easy to transport and store; and easy to install and disassemble, making it suitable for the inspection of most bridge railings and highly adaptable.

[0020] 2. This invention, by setting up a height detection mechanism, a lifting mechanism, and a pulley assembly, ensures accurate leveling when the handrail is tilted under traction. Since the height of the handrail does not change, the highest point of the handrail decreases when it tilts (if no adjustment is made, the originally horizontal traction rope will tilt; force analysis shows that when the traction rope tilts, the tilting force becomes two equivalent discrete forces, leading to deviations in the test data). When the height detection mechanism detects a change in the handrail height, the industrial control computer adjusts the height of the pulley assembly through the lifting mechanism to keep the traction rope horizontal, thereby automatically adjusting the direction of the equivalent horizontal concentrated load (equivalent level: because the tension of the hydraulic traction mechanism is tilted, the fixed pulley transforms the tilted force into a horizontal force; the fixed pulley only changes the direction of the force, not its magnitude, thus achieving equivalent level; concentrated load is the load whose reaction force acts on a single point), ensuring accurate leveling, guaranteeing accurate measurement data, and displaying the equivalent horizontal concentrated load force value in real time.

[0021] This testing system is highly secure, and once the preliminary preparations are completed, the testing process requires virtually no human intervention. Staff can maintain a safe distance from the testing system, further enhancing safety. Attached Figure Description

[0022] The above and other objects, features, and advantages of exemplary embodiments of the present invention will become readily apparent upon reading the following detailed description with reference to the accompanying drawings. In the drawings, several embodiments of the invention are illustrated by way of example and not limitation, and like or corresponding reference numerals denote like or corresponding parts, wherein: Figure 1 A schematic diagram of the structure of an automated detection system for horizontal thrust of a railing provided by the present invention; Figure 2 for Figure 1 A schematic diagram of the positioning system; Figure 3 for Figure 1 Schematic diagram of the supporting mechanism; Figure 4 This is a top view of the support mechanism and positioning system of the present invention.

[0023] Explanation of reference numerals in the attached figures: 1. Support mechanism; 1-1. Outrigger large diameter section; 1-2. Locking ring; 1-3. Outrigger small diameter section; 1-4. Base; 1-5. Slot; 2. Radar sensor; 3. Industrial computer; 3-1. Display screen; 4. Drive motor; 5. Lifting mechanism; 5-1. Bracket; 5-2. Fixed pulley; 5-3. Screw jack; 5-4. Top rod; 5-5. Reducer; 6. Tripod; 7. Hydraulic jack; 8. Force sensor; 9. Dial indicator; 10. Guardrail; 11. Traction rope; 12. Platform plate; 13. Positioning system; 14. Anchor bolts. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Those skilled in the art should understand that the embodiments described below are only some, not all, of the embodiments disclosed. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0025] This invention addresses the technical problem of existing railing testing equipment where the traction rope tilts with the deformation of the railing, leading to errors in the measured horizontal tension and affecting experimental results. A measurement system is designed to address this issue. A support mechanism is used to fix and adjust the height of a dial indicator, which measures the horizontal displacement of the railing during testing. A positioning system is offset from the support mechanism to avoid interfering with radar sensor scanning and the passage of the traction rope. After scanning the railing, the radar sensor sends the railing height data to an industrial control computer. The computer controls a drive motor to rotate, which in turn drives a screw jack to adjust the height of a fixed pulley, keeping the traction rope between the railing handrail and the pulley horizontal. The traction rope (which can be installed first or the fixed pulley height adjusted first) is connected at one end to the railing handrail, passes through the fixed pulley, and at the other end to an anchor bolt. A hydraulic traction mechanism and a force sensor are connected to the traction rope, with the hydraulic traction mechanism and force sensor connected in series on the traction rope. During testing, after the power is turned on, the hydraulic traction mechanism contracts to generate tension. The industrial control computer displays and records the force and deformation of the railing, and judges whether the bridge railing is qualified based on the above data.

[0026] After introducing the basic principles of the present invention, various non-limiting embodiments of the present invention are described in detail below. Any number of elements in the accompanying drawings is for illustrative purposes only and not for limitation, and any naming is for distinction only and has no limiting meaning.

[0027] The principles and spirit of the present invention will be explained in detail below with reference to several representative embodiments.

[0028] Example 1 of the automated detection system for horizontal thrust of railings provided by the present invention: like Figure 1-4 As shown, it includes a support mechanism 1, which is installed on the bridge surface inside the railing 10. The horizontal displacement detection mechanism is used to measure the horizontal displacement of the railing 10. In this embodiment, the horizontal displacement detection mechanism is a dial gauge 9. In other embodiments, an infrared rangefinder or the like can also be used for distance measurement. The support mechanism 1 is provided with a height adjustment structure so that the horizontal displacement detection mechanism and the axis of the railing 10 handrail are on the same horizontal plane during detection. The positioning system 13 is located on the side of the support mechanism 1 away from the railing 10. It includes a lifting mechanism 5. The bottom of the lifting mechanism 5 is equipped with a support frame. The top of the lifting mechanism 5 is equipped with a pulley assembly for changing the direction of the pulling force. The support frame is also equipped with a height detection mechanism for detecting the real-time height of the railing 10 handrail. When the height detection mechanism detects that the railing 10 handrail has changed in height due to deformation, the lifting mechanism 5 drives the adjustment of the height of the pulley assembly, thereby keeping the traction rope 11 between the pulley assembly and the railing 10 handrail always horizontal. As we know from mechanics, when the pulling force is tilted, it can be decomposed into forces in two directions. Therefore, if the traction rope 11 is tilted, it may cause an error between the measured pulling force and the actual force, affecting the measurement results. like Figure 4 As shown, the support mechanism 1 and the positioning system 13 are offset in the front-to-back direction to prevent the support mechanism 1 from interfering with the traction rope 11. The distance between the traction rope 11 and the support mechanism 1 can be controlled at about 5cm to avoid the distance between the traction rope 11 and the support mechanism 1 being too large and affecting the measurement results.

[0029] The traction rope 11, in this embodiment, is a steel wire rope. One end of the traction rope 11 is connected to the handrail of the railing 10. The traction rope 11 passes through and is wound around the pulley assembly. The other end of the traction rope 11 is connected to the anchor bolt 14 fixed on the bridge deck. In other embodiments, if the railing is to be inspected in other places, the traction rope 11 can be fixed to the corresponding ground by the anchor bolt 14. In addition, depending on the actual situation, a permanent magnet crane or other fixing equipment can be selected. A hydraulic traction mechanism and a force sensor 8 are connected to the traction rope 11. In this embodiment, the hydraulic traction mechanism is a hydraulic jack 7. In other embodiments, a hydraulic telescopic mechanism or a hydraulic winding mechanism can also be used to drive the traction rope 11. A lock can be provided at the end of the traction rope 11 for easy connection to the railing 10 or the anchor bolt 14.

[0030] like Figure 2As shown, the lifting mechanism 5 includes a screw jack 5-3. Since the fixed pulley 5-2 also needs to bear force when the traction rope 11 is contracted, the screw jack 5-3 has better stability and generally will not deviate downward. A reducer 5-5 is provided on the side of the screw jack 5-3. The reducer 5-5 reduces the speed, making the pulley assembly more precise and stable when lifting. A drive motor 4 is installed on the side of the reducer 5-5 away from the screw jack 5-3. The power input shaft of the screw jack 5-3 is connected to the output shaft of the reducer 5-5, and the output shaft of the reducer 5-5 is connected to the output shaft of the drive motor 4.

[0031] like Figure 2 As shown, the positioning system 13 in this embodiment is an automatic positioning system 13, and the height detection mechanism is a radar sensor 2. The radar sensor 2 scans and positions the height of the railing 10 to be measured. The industrial control computer 3 controls the lifting mechanism 5 to adjust the position to achieve automatic positioning. The radar sensor 2, drive motor 4, hydraulic jack 7, force sensor 8, etc. are all electrically connected to the industrial control computer 3. In other embodiments, the height change of the railing 10 can also be measured by means of camera photo comparison.

[0032] like Figure 2 As shown, the industrial computer 3 is fixed to the support frame with bolts. The current industrial computer 3 is small in size and can be directly fixed to the support frame. The industrial computer 3 comes with a display screen 3-1. If needed, the industrial computer 3 can also be adjusted to be mobile for convenient remote operation.

[0033] like Figure 2 As shown, the pulley assembly includes a bracket 5-1, which is a rectangular bracket 5-1. A top rod 5-4 is installed at the bottom of the bracket 5-1, and the top rod 5-4 is fixed on the screw jack 5-3. A fixed pulley 5-2 is rotatably connected inside the bracket 5-1. The fixed pulley 5-2 is a cross-shaped welded pulley.

[0034] like Figure 1 As shown, the support frame is a tripod 6, and the top of the tripod 6 is fixedly connected to the platform plate 12. The tripod 6 is easy to store and has good support stability.

[0035] like Figure 3 As shown, the support mechanism 1 includes a base 1-4 for connecting to the bridge deck. The base 1-4 is fixed to the bridge deck by bolts to prevent the support mechanism 1 from moving. A small diameter section 1-3 of the support leg is connected to the center of the upper surface of the base 1-4. A large diameter section 1-1 of the support leg is threaded to the upper end of the small diameter section 1-3 to achieve the purpose of freely adjusting the height of this limiting mechanism. The bolt section of the small diameter section 1-3 accounts for three-quarters of its total length.

[0036] like Figure 3As shown, a locking ring 1-2 is also fitted on the small diameter section 1-3 of the outrigger. When the large diameter section 1-1 of the outrigger is adjusted to a suitable position, the locking ring 1-2 is used to lock and prevent the large diameter section 1-1 of the outrigger from moving downward.

[0037] like Figure 3 As shown, a connecting slot 1-5 is installed on the upper side of the large diameter section 1-1 of the outrigger for fixing the dial indicator 9. There are bolt holes on both sides of the connecting slot 1-5. When the top of the dial indicator 9 is installed in the slot 1-5, the dial indicator 9 is locked by bolts.

[0038] The present invention also provides a method for measuring the horizontal thrust of a bridge railing 10 using the above-described detection system, comprising the following steps: Fix the support mechanism 1, measure the set distance from the railing 10 to be tested as the starting point, then fix the support mechanism 1, adjust the height of the support mechanism 1, and install the dial indicator 9 on the support mechanism 1 so that the measuring needle of the dial indicator 9 contacts the handrail of the railing 10 to be tested. Positioning system 13 is placed on the side of support mechanism 1 away from railing 10. Positioning system 13 adjusts pulley assembly to keep the tension of traction rope 11 horizontal. The anchor bolt 14 is fixed to the bridge deck at the fixed stress point, and the force sensor 8 and hydraulic jack 7 are installed on the traction rope 11. One end of the traction rope 11 is connected to the handrail of the railing 10 to be tested. The traction rope 11 is wound around the pulley assembly, and the other end of the traction rope 11 is connected to the anchor bolt 14. After starting the test and connecting all components to the power supply, and ensuring normal power supply, measure the force and horizontal displacement of the railing 10.

[0039] The testing method of the present invention is easy to operate and has better safety; in addition, it also introduces the measurement of the horizontal displacement (deformation) of the railing 10, so as to determine whether the tested railing 10 is qualified from multiple aspects.

[0040] Embodiment 2 of the automated detection system for horizontal thrust of railings provided by the present invention: Its main difference from Example 1 is: In Example 1, the lifting mechanism includes a screw jack, a reducer is provided on the side of the screw jack, the speed is reduced by the reducer, and a drive motor is installed on the side of the reducer away from the screw jack.

[0041] In this embodiment, the lifting mechanism of the positioning system is a hydraulic lifting mechanism. The hydraulic lifting mechanism has better stability, but the cost is higher. It can be used in scenarios with large forces.

[0042] Embodiment 3 of the automated detection system for horizontal thrust of railings provided by the present invention: Its main difference from Example 1 is: In Example 1, the positioning system also includes a radar sensor mounted on a support frame, making the positioning system an automatic positioning system.

[0043] In this embodiment, the positioning system is a manual positioning system without radar sensors. Instead, a laser light is installed on the support frame, and the position of the laser light on the handrail determines whether the lifting mechanism has reached the set position.

[0044] Example 4 of the automated detection system for horizontal thrust of railings provided by the present invention: Its main difference from Example 1 is: In Example 1, the support mechanism includes a base for connecting to the bridge deck. The base is fixed to the bridge deck with bolts to prevent the support mechanism from moving. A small diameter section of the support leg is connected to the center of the upper surface of the base. A large diameter section of the support leg is threaded to the upper end of the small diameter section of the support leg to achieve the purpose of freely adjusting the height of this limiting mechanism.

[0045] In this embodiment, the support mechanism uses an electrically operated lifting structure to achieve lifting, making operation more convenient.

[0046] Embodiment 5 of the automated detection system for horizontal thrust of railings provided by the present invention: Its main difference from Example 1 is: In Example 1, the dial indicator is fixed in a slot on the large diameter section of the outrigger.

[0047] In this embodiment, a motor telescopic mechanism arranged in the horizontal direction is connected to the top of the large-diameter section of the outrigger, which can reduce the problem that the support mechanism cannot be adjusted after installation due to measurement errors.

[0048] While various embodiments of the invention have been shown and described herein, it will be apparent to those skilled in the art that such embodiments are provided by way of example only. Many modifications, alterations, and alternatives will occur to those skilled in the art without departing from the spirit and essence of the invention. It should be understood that various alternatives to the embodiments of the invention described herein may be employed in the practice of the invention. The appended claims are intended to define the scope of the invention and therefore cover any modular compositions, equivalents, or alternatives within the scope of these claims.

Claims

1. An automated detection system for horizontal thrust of a railing, characterized in that, include: A support mechanism (1) is provided to support a horizontal displacement detection mechanism for measuring the horizontal displacement of the railing (10). The support mechanism (1) is equipped with a height adjustment structure so that the horizontal displacement detection mechanism and the railing (10) handrail axis are on the same horizontal plane during detection. A positioning system (13) is provided on the side of the support mechanism (1) away from the railing (10). The positioning system (13) includes a lifting mechanism (5). A support frame is provided at the bottom of the lifting mechanism (5). A pulley assembly for changing the direction of the pulling force is assembled at the top of the lifting mechanism (5). A support frame is also installed on the support frame. The height detection mechanism is used to detect the real-time height of the handrail (10). When the height detection mechanism detects that the handrail (10) has changed in height due to deformation, the lifting mechanism (5) drives the adjustment pulley assembly to adjust the height, thereby keeping the traction rope (11) between the pulley assembly and the handrail (10) always horizontal. The traction rope (11) has one end connected to the handrail (10), passes through and is wound around the pulley assembly, and the other end of the traction rope (11) is fixed. The traction rope (11) is connected to a hydraulic traction mechanism and a force sensor (8).

2. The automated detection system for horizontal thrust of railings according to claim 1, characterized in that: The lifting mechanism (5) includes a screw jack (5-3), a reducer (5-5) is provided on the side of the screw jack (5-3), and a drive motor (4) is installed on the side of the reducer (5-5) away from the screw jack (5-3). The power input shaft of the screw jack (5-3) is connected to the output shaft of the reducer (5-5), and the power input shaft of the reducer (5-5) is connected to the output shaft of the drive motor (4).

3. The automated detection system for horizontal thrust of railings according to claim 2, characterized in that: The height detection mechanism is a radar sensor (2). The radar sensor (2) is used to scan and locate the height of the railing (10) to be measured. The radar sensor (2) and the drive motor (4) are electrically connected to the industrial control computer (3).

4. The automated detection system for horizontal thrust of railings according to claim 1, characterized in that: The horizontal displacement detection mechanism is a dial gauge (9).

5. The automated detection system for horizontal thrust of railings according to claim 2 or 3, characterized in that: The pulley assembly includes a bracket (5-1), a top rod (5-4) is installed at the bottom of the bracket (5-1), the top rod (5-4) is fixed on the screw jack (5-3), and a fixed pulley (5-2) is rotatably connected inside the bracket (5-1).

6. The automated detection system for horizontal thrust of railings according to any one of claims 1 to 4, characterized in that: The support frame is a tripod (6), and the top of the tripod (6) is fixedly connected to a platform plate (12).

7. The automated detection system for horizontal thrust of railings according to claim 1, characterized in that: The support mechanism (1) includes a base (1-4) for connecting the bridge deck. A small diameter section (1-3) of the outrigger is connected to the center of the upper surface of the base (1-4). A large diameter section (1-1) of the outrigger is threaded to the upper end of the small diameter section (1-3).

8. The automated detection system for horizontal thrust of railings according to claim 7, characterized in that: A locking ring (1-2) is also fitted on the small diameter section (1-3) of the outrigger. When the large diameter section (1-1) of the outrigger is adjusted to a suitable position, the locking ring (1-2) is used to lock and prevent the large diameter section (1-1) of the outrigger from moving downward.

9. The automated detection system for horizontal thrust of railings according to claim 8, characterized in that: A connecting slot (1-5) is installed on the upper side of the large diameter section (1-1) of the outrigger for fixing the horizontal displacement detection mechanism.

10. A method for measuring the horizontal thrust of a railing using the detection system according to any one of claims 1-9, characterized in that, Includes the following steps: Fix the support mechanism (1), measure the set distance from the railing (10) to be measured, then fix the support mechanism (1), adjust the height of the support mechanism (1), and install the dial indicator (9) on the support mechanism (1) so that the measuring needle of the dial indicator (9) contacts the handrail of the railing (10) to be measured; place the positioning system (13), place the positioning system (13) on the side of the support mechanism (1) away from the railing (10), adjust the pulley assembly of the positioning system (13) so that the traction rope ( 11) Keep the tension horizontal; fix the force point, fix the anchor bolt (14) on the bridge surface, and install the force sensor (8) and hydraulic traction mechanism on the traction rope (11). One end of the traction rope (11) is connected to the handrail of the railing (10) to be tested. The traction rope (11) is wound around the pulley assembly. The other end of the traction rope (11) is connected to the anchor bolt (14). Start the test. After each component is powered on and can be powered normally, measure the force and horizontal displacement of the railing (10).

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