A device for testing the reaction force of a guardrail against vertical load

Abstract

This invention relates to the field of testing equipment technology, specifically to a test device for the vertical load resistance reaction force of a guardrail, comprising: a reaction frame assembly, including two horizontally mounted upper reaction steel beams (first and second reaction steel beams), the first and second reaction steel beams and the load-bearing beams forming an inverted U-shape; a force transmission column and a force-bearing clamp are installed under the lower load-bearing beam, the force-bearing clamp being secured to the guardrail handrail; anchoring components are respectively provided at the bottom ends of the first and second reaction steel beams; a force supply and measuring device, including an electrical control system, a hydraulic device, and a digital display force measuring device installed between the two load-bearing beams; this device is suitable for on-site testing of the vertical load resistance performance of guardrails, has a simple structure, is easy to install, has an adjustable height, and a wide range of applications; it can intuitively read the load force, with high accuracy of force readings, improving testing precision; the suction cup and rigid clamp can provide reaction force, solving the problem of not being able to erect a reaction frame due to limited space.

Description

Technical Field

[0001] This invention relates to the field of testing equipment technology, and specifically to a testing device for the reaction force of guardrails against vertical loads. Background Technology

[0002] Guardrails are important protective facilities for human safety in structural engineering projects such as buildings and bridges. Handrails are components fixed to columns or building structures and can be grasped by hands for guidance or support. Their safety performance is especially important in densely populated areas such as shopping malls, schools, and pedestrian overpasses.

[0003] Traditional vertical load resistance testing of guardrails involves fabricating the guardrails according to dimensional requirements and design materials, and then conducting the tests in a laboratory. The laboratory can easily accommodate fixed reaction supports, making the testing process straightforward. However, because actual usage and installation dimensions are often not standard, their load-bearing capacity differs from standard dimensions. Therefore, on-site testing is necessary, as varying environmental conditions, particularly the provision of reaction force, are crucial and significantly impact the accuracy of the tests. Thus, the development of a device capable of providing reaction force is paramount for accurate and reliable testing. In light of this, we propose a reaction force testing device for guardrail vertical load resistance. Summary of the Invention

[0004] The purpose of this invention is to address the shortcomings mentioned in the background art and provide a device for testing the reaction force of guardrails against vertical loads.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A device for testing the vertical load resistance reaction performance of a guardrail, comprising: The reaction frame assembly includes a first reaction steel beam and a second reaction steel beam, which are horizontally mounted on the upper part with two layers of load-bearing plate beams. The first reaction steel beam, the second reaction steel beam and the load-bearing plate beam have an inverted U-shaped structure. A force transmission column and a force-bearing clip are provided under the load-bearing plate beam. The force-bearing clip is used to clip onto the railing handrail. The force supply and force measuring device includes a digital display force measuring device, a hydraulic device and an electric control system installed sequentially from top to bottom between the two layers of the load-bearing plate beams. The hydraulic device provides thrust under the control of the electric control system, and the load is applied to the railing handrail through the force transmission column and the force-bearing clamp. The bottom ends of the first reaction steel beam and the second reaction steel beam are respectively provided with anchoring components for fixing to the structural plate or ground foundation to maintain positioning.

[0006] Preferably, the anchoring assembly includes a rigid clamping plate and a suction cup respectively disposed at the bottom end of the first reaction steel beam and the second reaction steel beam for mounting on the corresponding structural plate or foundation below and maintaining positioning.

[0007] Preferably, the hydraulic device applies force to the railing handrail by pushing the force transmission column and the force receiving clamp through the piston.

[0008] Preferably, the load-bearing plate beam below is provided with a central hole for the piston to pass through.

[0009] Preferably, the force-bearing clip is round or square, and has a slot at the bottom that matches the contour of the railing handrail surface.

[0010] Preferably, the first reaction steel beam and the second reaction steel beam are provided with a plurality of vertically arranged adjustment holes at their top ends, and the load-bearing plate beam is detachably installed at the adjustment holes.

[0011] Preferably, the bottom end of the first reaction steel beam is provided with mounting holes for adjusting the rigid plate up and down; The suction cup is inserted into the bottom end of the second reaction steel beam, and the bottom end of the second reaction steel beam is provided with a locking pin for locking the suction cup.

[0012] Preferably, the digital force measuring device has circular steel pads installed at its upper and lower ends for connecting the load-bearing plate beam and the hydraulic device.

[0013] Preferably, the rigid plate is equipped with screws, which are used to fasten the rigid plate to the corresponding structural plate or foundation to provide reaction force.

[0014] Preferably, the hydraulic device is equipped with an electrical control system for controlling the load output.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This guardrail vertical load resistance reaction force testing device is suitable for on-site testing of guardrail vertical load resistance performance. It has a simple structure, is easy to install, and its height is adjustable, making it widely applicable. The load force can be read intuitively through the digital display force gauge, with high accuracy of force reading and improved testing precision. 2. The present invention adopts a power control system, which can apply load to two force points simultaneously through a switch, thus solving the problem of twisting and deformation of the handrail caused by the time difference of force application caused by the traditional on-site detection reaction frame load. 3. The use of suction cups and rigid clamps can provide reaction force, which solves the problem of not being able to set up reaction force frames due to limited space, and avoids the problem of structural damage caused by providing reaction force. Attached Figure Description

[0016] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an undue limitation of the invention. In the drawings: Figure 1 This is a schematic diagram of the overall device structure of the present invention.

[0017] The meanings of the labels in the diagram are as follows: 1. Handrail; 2. Load-bearing plate beam; 3. First reaction steel beam; 4. Second reaction steel beam; 5. Circular steel pad; 6. Digital display force measuring device; 7. Hydraulic device; 8. Power control system; 9. Piston; 10. Force transmission column; 11. Force-bearing clamp; 12. Suction cup; 13. Rigid clamping plate; 14. Screw; 15. Locking pin. Detailed Implementation

[0018] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figure 1 The present invention will describe the above technical solution in detail through the following embodiments: The guardrail vertical load resistance reaction force testing device of this embodiment can provide reaction force for the guardrail vertical load resistance test under the limitation of on-site testing environment conditions. The device is installed on the handrail 1 of the guardrail to obtain the reaction force, and then the reaction force test is carried out. It should be explained that because the guardrail is mostly located at the edge, the outside is suspended and the inside is ground foundation, thus forming a structural height difference, such as guardrails in balconies, stairs, pedestrian bridges and other places.

[0020] Specifically, in this embodiment, a first reaction steel beam 3 and a second reaction steel beam 4, consisting of two layers of load-bearing plate beams 2, are horizontally installed at the top to form a reaction frame assembly. The first reaction steel beam 3, the second reaction steel beam 4, and the load-bearing plate beam 2 form an inverted U-shaped structure. A force transmission column 10 and a force-bearing clip 11 are installed below. The force-bearing clip 11 is clipped above the railing handrail 1. The first reaction steel beam 3 and the second reaction steel beam 4 have different lengths to adjust the height difference between the inner and outer sides of the guardrail.

[0021] To accommodate different height differences in the guardrail, this embodiment has vertically arranged adjustment holes at the top of the first reaction steel beam 3 and the second reaction steel beam 4, and two layers of load-bearing plate beams 2 are detachably installed, with a central hole on the lower load-bearing plate beam 2.

[0022] In order to directly observe the load force, a digital display force measuring device 6 and a hydraulic device 7 are installed from top to bottom between the two load-bearing beams 2. The digital display force measuring device 6 is a force gauge that can display the force value and can directly read the force value. The upper and lower ends of the digital display force measuring device 6 are connected to the load-bearing beam 2 and the hydraulic device 7 through circular steel pads 5. In this embodiment, the hydraulic device 7 is equipped with a power control system 8. Inside, the piston 9 pushes the force transmission column 10 and the force receiving card 11 up and down. The bottom of the force receiving card 11 is provided with a slot that fits the surface contour of the railing handrail 1. The hydraulic device 7 drives the piston 9 to push the force transmission column and the force receiving card to apply force to the railing handrail.

[0023] To provide effective load, the bottom of the device needs to be fixed. Therefore, in this embodiment, a rigid clamping plate 13 for clamping onto the stair structure plate is installed at the bottom end of the first reaction steel beam 3 through an adjustment hole. In order to maintain the fixed position, screws 14 are installed on the rigid clamping plate 13 to provide reaction force by fastening the rigid clamping plate 13 to the corresponding structure plate. At the same time, a suction cup 12 is clamped at the bottom end of the second reaction steel beam 4 through a locking pin 15. In this embodiment, the suction cup 12 is adsorbed to the ground with marble adhesive to provide reaction force. The device maintains structural stability. The electric hydraulic pump device stably supports the digital display force measuring device 6. The force value is read through the digital display force measuring device 6 to control the resistance of the two force points of the guardrail to the vertical load.

[0024] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.

[0025] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within the present invention.

Claims

1. A device for testing the reaction force of a guardrail against vertical loads, characterized in that: include: The reaction frame assembly includes a first reaction steel beam (3) and a second reaction steel beam (4) with two layers of load-bearing plate beams (2) installed horizontally on the upper part. The first reaction steel beam (3), the second reaction steel beam (4) and the load-bearing plate beam (2) are in an inverted U-shaped structure. A force transmission column (10) and a force-bearing clip (11) are provided under the lower load-bearing plate beam (2). The force-bearing clip (11) is used to clip onto the railing handrail (1). The force supply and force measuring device includes a digital display force measuring device (6), a hydraulic device (7) and an electric control system (8) installed sequentially from top to bottom between the two layers of the load-bearing plate beams (2). The hydraulic device (7) provides thrust through the electric control system (8), and the load is applied to the railing handrail (1) through the force transmission column (10) and the force receiving clamp (11). The bottom ends of the first reaction steel beam (3) and the second reaction steel beam (4) are respectively provided with anchoring components for fixing to the structural plate or ground foundation to maintain positioning.

2. The guardrail vertical load resistance reaction force testing device as described in claim 1, characterized in that: The anchoring assembly includes a rigid clamping plate (13) and a suction cup (12) respectively disposed at the bottom of the first reaction steel beam (3) and the second reaction steel beam (4) for mounting on the corresponding structural plate or foundation below to maintain positioning.

3. The guardrail vertical load resistance reaction force testing device as described in claim 2, characterized in that: The hydraulic device (7) pushes the force transmission column (10) and the force receiving card (11) through the piston (9) to apply force to the railing handrail (1).

4. The guardrail vertical load resistance reaction force testing device as described in claim 3, characterized in that: The load-bearing plate beam (2) is provided with a central hole for the piston (9) to pass through.

5. The guardrail vertical load resistance reaction force testing device as described in claim 4, characterized in that: The force-bearing clip (11) is round or square, and the bottom is provided with a slot that matches the surface contour of the railing handrail (1).

6. The guardrail vertical load resistance reaction force testing device as described in claim 5, characterized in that: The first reaction steel beam (3) and the second reaction steel beam (4) are provided with a plurality of vertically arranged adjustment holes at their top ends, and the force-bearing plate beam (2) is detachably installed at the adjustment holes.

7. The guardrail vertical load resistance reaction force testing device as described in claim 6, characterized in that: The bottom end of the first reaction steel beam (3) is provided with mounting holes for adjusting the rigid plate (13) up and down; The suction cup (12) is inserted into the bottom end of the second reaction steel beam (4), and the bottom end of the second reaction steel beam (4) is provided with a locking pin (15) for locking the suction cup (12).

8. The guardrail vertical load resistance reaction force testing device as described in claim 7, characterized in that: The digital force measuring device (6) has circular steel pads (5) installed at its upper and lower ends to connect the load-bearing plate beam (2) and the hydraulic device (7).

9. The guardrail vertical load resistance reaction force testing device as described in claim 8, characterized in that: The rigid plate (13) is fitted with screws (14) which are used to fasten the rigid plate (13) to the corresponding structural plate or foundation to provide reaction force.

10. The guardrail vertical load resistance reaction force testing device as described in claim 9, characterized in that: The hydraulic device (7) is equipped with an electrical control system (8) for controlling the load output.

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