Shearing force detection device for building spandrel girder

Abstract

The utility model belongs to the technical field of building spandrel girder shearing force detection devices, and particularly relates to a building spandrel girder shearing force detection device which comprises a bottom shell, a detection part is arranged at the center in the bottom shell, two supports are fixedly connected to the two ends in the bottom shell respectively, and two symmetrical swing arms are hinged to the upper ends of the two supports respectively. The two sides of the end, away from the support, of each swing arm are fixedly connected with a set of symmetrical hydraulic cylinders, and the extension end of each set of hydraulic cylinders is fixedly connected with a clamping plate in sliding connection with the corresponding swing arm. The bearing beam is kept stable in the detection process, friction between the clamping plates and the bearing beam is increased by arranging the friction grooves, the bearing beam is prevented from slipping in the detection process, and the detection stability and accuracy are greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of shear force detection devices for building load-bearing beams, in particular to a shear force detection device for building load-bearing beams. Background Art

[0002] A shear force detection device is a device used to detect how much shear force an object can withstand. It is often used in the construction field. The prior art uses a shear force detection device to detect the shear force of a building's load-bearing beams, so as to effectively eliminate unqualified building materials. Usually, the load-bearing beam sample is lifted and fixed at both ends, and a shear force is applied to the load-bearing beam using a detection component until the load-bearing beam breaks. The force applied at this time is measured to obtain the shear force detection data of the load-bearing beam.

[0003] A Chinese patent with authorization announcement number CN219996767U discloses a shear force detection device for a building load-bearing beam, comprising a base plate, support columns are bolted to the four sides of the top of the base plate, and a box is bolted to the top of the support column, a clamping assembly is provided in the inner cavity of the box, a fixing frame is bolted to the center of the bottom of the base plate, and shear beam sensors are installed in sequence from left to right on the top of the inner cavity of the fixing frame, a hydraulic cylinder is bolted to the center of the top of the base plate, and a cutter is bolted to the piston rod of the hydraulic cylinder, and through the cooperation of a motor, a rotating shaft, a driving gear, a driven gear, a screw rod, a threaded sleeve and a limit plate, it is convenient to fix load-bearing beams of different sizes, thereby improving the scope of application of the device and facilitating use, and through the cooperation of a clamping rod and a handle, it is convenient to release the fixed state between the cutter and the fixing frame, so that the broken load-bearing beam can be removed, thereby realizing the rapid disassembly of the load-bearing beam.

[0004] However, the above patent has the following disadvantages:

[0005] 1. The above patent uses two limit plates to apply a supporting force to both ends of the load-bearing beam, so as to fix the load-bearing beam sample to be tested for shear force detection. However, the fixing effect is not good if only the above method is used. When the testing component applies shear force, it is easy to cause the load-bearing beam to slip and dislocate, affecting the detection effect.

[0006] 2. The above patent requires manual assistance for loading and unloading during the process of installing the load-bearing beams to be tested and disassembling the load-bearing beams after testing. Since the load-bearing beams are generally reinforced concrete structures with a large weight, manual loading and unloading will cause high labor intensity for the testers, which is not conducive to the testing of a large number of samples. Utility Model Content

[0007] In order to overcome the deficiencies of the prior art, the technical problem solved by the utility model is that a stable clamp is applied to the two ends of the load-bearing beam by two groups of clamping plates, so that the load-bearing beam remains stable during the detection process and avoids slipping, which greatly improves the stability and accuracy of the detection. By utilizing the swing of the swing arm and cooperating with the conveyor belt to transport the load-bearing beam, it is possible to replace manual labor, automatically transport the load-bearing beam to the clamping position and clamp it, automatically lift the load-bearing beam and move it to the detection position, automatically move it to the unloading position and unload the load-bearing beam after the detection, thereby greatly reducing labor intensity and improving the detection work efficiency.

[0008] In order to achieve the above-mentioned purpose, the utility model provides the following technical solutions: a shear force detection device for a building load-bearing beam, comprising a bottom shell, a detection component is arranged at the center of the bottom shell, two groups of mutually symmetrical conveying components are respectively arranged at both sides of the detection component in the bottom shell, two brackets are respectively fixedly connected at both ends of the bottom shell, two mutually symmetrical swing arms are respectively hinged at the upper ends of the two brackets, a group of mutually symmetrical hydraulic cylinders are fixedly connected on both sides of one end of each swing arm away from the bracket, and the extended end of each group of the hydraulic cylinders is fixedly connected with a clamping plate slidably connected to the swing arm.

[0009] Two sets of clamps are used to stably clamp the two ends of the load-bearing beam, so that the load-bearing beam remains stable during the detection process to avoid slipping, thereby greatly improving the stability and accuracy of the detection. The detection component is a prior art.

[0010] Furthermore, two ends of the bottom shell are rotatably connected to two lead screws close to the two brackets, one end of each lead screw extending out of the bottom shell is transmission connected to the second motor, each lead screw is meshingly transmission connected to a slide seat, each slide seat is hinged with a connecting rod, and each connecting rod is hinged to the corresponding swing arm at one end away from the slide seat, and two conveying frames are fixedly connected to the two sides of the detection component in the bottom shell, and a group of conveying rollers are evenly distributed and rotatably connected in each conveying frame, each group of conveying rollers is transmission connected to a conveyor belt, and the upper surface of each conveyor belt is flush with the upper edge of the bottom shell.

[0011] Through the meshing transmission of the slide and the lead screw, the swing arm is driven to swing, so as to automatically transport the load-bearing beam to the clamping position and clamp it, automatically lift the load-bearing beam to the detection position, and automatically move it to the unloading position and unload the load-bearing beam after detection, which greatly reduces labor intensity and improves detection work efficiency.

[0012] Furthermore, each of the clamping plates is made of a semi-rigid material, and a group of friction grooves are evenly distributed on the surface of each of the clamping plates.

[0013] By setting the friction groove, the clamping and fixing effect of the two clamping plates on the load-bearing beam is greatly improved, which further prevents the load-bearing beam from slipping and improves the stability of the detection.

[0014] In summary, compared with the prior art, the beneficial effects of the present invention are:

[0015] (1) Two sets of clamps are used to clamp the two ends of the load-bearing beam stably, so that the load-bearing beam remains stable during the detection process. The friction between the clamps and the load-bearing beam is increased by setting friction grooves to prevent the load-bearing beam from slipping during the detection process, greatly improving the stability and accuracy of the detection.

[0016] (2) Through the meshing transmission of the slide and the lead screw, the swing arm is driven to swing, so as to automatically transport the load-bearing beam to the clamping position and clamp it, automatically lift the load-bearing beam to the inspection position, and automatically move it to the unloading position and unload the load-bearing beam after inspection, thereby greatly reducing labor intensity and improving inspection work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the cross-sectional structure of the overall part of the utility model;

[0019] Figure 3 This is an overall side view of the utility model;

[0020] Figure 4 It is a schematic diagram of the cross-sectional structure of the AA portion of the utility model; DETAILED DESCRIPTION

[0021] In order to enable those skilled in the art to better understand the solution of the present invention, the technical solution in the embodiment of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiment of the present invention.

[0022] refer to Figure 1-4 A shear force detection device for a load-bearing beam of a building comprises a bottom shell 10, a detection component 24 is arranged at the center of the bottom shell 10, two groups of mutually symmetrical conveying components are respectively arranged at both sides of the detection component 24 in the bottom shell 10, two brackets 15 are respectively fixedly connected at both ends of the bottom shell 10, two mutually symmetrical swing arms 16 are respectively hinged at the upper ends of the two brackets 15, a group of mutually symmetrical hydraulic cylinders 19 are fixedly connected on both sides of one end of each swing arm 16 away from the bracket 15, and a clamping plate 20 slidably connected to the swing arm 16 is fixedly connected at the extended end of each group of hydraulic cylinders 19.

[0023] The two groups of clamping plates 20 are used to stably clamp the two ends of the load-bearing beam, so that the load-bearing beam remains stable during the detection process and avoids slipping, thereby greatly improving the stability and accuracy of the detection.

[0024] For further reference, Figure 1-2, two ends of the bottom shell 10 are rotatably connected to two lead screws 22 near the two brackets 15, one end of each lead screw 22 extending out of the bottom shell 10 is transmission-connected to the second motor 23, each lead screw 22 is meshingly transmission-connected to a slide 21, each slide 21 is hinged with a connecting rod 17, and one end of each connecting rod 17 away from the slide 21 is hinged to the corresponding swing arm 16, and two conveying frames 11 are fixedly connected to the two sides of the detection component 24 in the bottom shell 10, and each conveying frame 11 is evenly distributed and rotatably connected to a group of conveying rollers 14, and each group of conveying rollers 14 is transmission-connected to a conveyor belt 12, and the upper surface of each conveyor belt 12 is flush with the upper edge of the bottom shell 10, and a first motor 13 is evenly fixedly provided on one side of the conveying frame 11, and the output shaft of the first motor 13 is respectively fixedly connected to one of the outer end conveying rollers 14.

[0025] Through the meshing transmission of the slide 21 and the lead screw 22, the swing arm 16 is driven to swing, so as to automatically transport the load-bearing beam to the clamping position and clamp it, automatically lift the load-bearing beam to the detection position, and automatically move it to the unloading position and unload the load-bearing beam after detection, thereby greatly reducing labor intensity and improving detection work efficiency.

[0026] refer to Figure 1 Each clamping plate 20 is made of a semi-rigid material, and a group of friction grooves 18 are evenly distributed on the surface of each clamping plate 20.

[0027] By providing the friction groove 18, the clamping and fixing effect of the two clamping plates 20 on the load-bearing beam is greatly improved, and the load-bearing beam is further prevented from slipping, thereby improving the stability of the detection.

[0028] In this embodiment, initially, the patent is half-buried or directly placed on the ground. The operator connects the patent to the power supply and control system, and connects the detection component 24 to the hydraulic control system. At this time, the first motor 13 drives the two conveyor belts 12 to run in the same direction through two sets of conveyor rollers 14, and the swing arm 16 is in a horizontal state and away from the second motor 23.

[0029] When the load-bearing beam needs to be inspected, the operator places the load-bearing beam horizontally on the two conveyor belts 12 through equipment such as a forklift or a crane, and ensures that the two ends of the load-bearing beam are respectively beyond the range of the two conveyor belts 12 and correspond to the two sets of clamps 20. The load-bearing beam is then unloaded, and the two ends of the load-bearing beam enter between the two sets of clamps 20 under the transportation of the two conveyor belts 12. At this time, the load-bearing beam is restricted by the swing arm 16 and is no longer moved by the conveyor belt 12. Then the two sets of hydraulic cylinders 19 are controlled to extend outward, and the two ends of the load-bearing beam are clamped and fixed by the clamps 20.

[0030] Subsequently, the second motor 23 is controlled to drive the screw 22 to rotate, so as to drive the slide 21 to move on the screw 22, and then the connecting rod 17 is used to lift the swing arm 16, so that the two swing arms 16 gradually lift the load-bearing beam and move it to the detection area. When the slide 21 moves to a position overlapping with the bracket 15, the second motor 23 is turned off. At this time, the swing arm 16 remains upright and the detection component 24 is located under the load-bearing beam. The detection component 24 is used to apply shear force to the load-bearing beam and perform detection. The structure and detection method of the detection component 24 are existing technologies. For specific methods, please refer to the "A shear force detection device for building load-bearing beams" with authorization announcement number CN2 hydraulic cylinder 19996767U, which will not be repeated in this article.

[0031] When the detection is completed, the second motor 23 is started again to make the slide 21 continue to move along the screw 22, so that the swing arm 16 gradually moves down with the load-bearing beam and finally contacts with the two conveyor belts 12 again. When the load-bearing beam contacts with the conveyor belt 12 again, the two groups of hydraulic cylinders 19 are controlled to retract so that the two groups of clamps 20 release the clamping of the load-bearing beam, and the load-bearing beam will leave the detection device under the conveyance of the conveyor belt 12, and then drive the screw 22 to rotate in the opposite direction, so that the swing arm 16 returns to its initial position and waits for the next detection.

[0032] For example, certain words are used in the specification and claims to refer to specific components. Those skilled in the art should understand that hardware manufacturers may use different terms to refer to the same component. This specification and claims do not use differences in names as a way to distinguish components, but use differences in the functions of components as the criteria for distinction. For example, "including" mentioned throughout the specification and claims is an open term, so it should be interpreted as "including but not limited to". "Approximately" means that within an acceptable error range, those skilled in the art can solve the technical problem within a certain error range and basically achieve the technical effect.

[0033] It should be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a product or system including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such product or system. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the product or system including the elements.

[0034] The above description shows and describes several preferred embodiments of the present application, but as mentioned above, it should be understood that the present application is not limited to the form disclosed herein, and should not be regarded as excluding other embodiments, but can be used in various other combinations, modifications and environments, and can be modified within the scope of the application concept described herein through the above teachings or the technology or knowledge of the relevant field. The changes and modifications made by those skilled in the art do not deviate from the spirit and scope of the present application, and should be within the scope of protection of the claims attached to the present application.

Claims

1. A shear force detection device for a building load-bearing beam, characterized in that: The invention comprises a bottom shell (10), wherein a detection component (24) is arranged at the center of the bottom shell (10), and two groups of mutually symmetrical conveying components are arranged at both sides of the detection component (24) in the bottom shell (10), and two brackets (15) are fixedly connected at both ends of the bottom shell (10), and two mutually symmetrical swing arms (16) are hinged at the upper ends of the two brackets (15), and a group of mutually symmetrical hydraulic cylinders (19) are fixedly connected on both sides of an end of each swing arm (16) away from the bracket (15), and the extended end of each group of the hydraulic cylinders (19) is fixedly connected to a clamping plate (20) slidably connected to the swing arm (16).

2. A shear force detection device for a building load-bearing beam according to claim 1, characterized in that: Two ends of the bottom shell (10) are rotatably connected to two lead screws (22) near the two brackets (15), one end of each lead screw (22) extending out of the bottom shell (10) is transmission-connected to a second motor (23), each lead screw (22) is meshingly transmission-connected to a slide seat (21), each slide seat (21) is hinged with a connecting rod (17), and one end of each connecting rod (17) away from the slide seat (21) is hinged to a corresponding swing arm (16).

3. A shear force detection device for a building load-bearing beam according to claim 1, characterized in that: Each of the clamping plates (20) is made of a semi-rigid material, and a group of friction grooves (18) are evenly distributed on the surface of each of the clamping plates (20).

4. A shear force detection device for a building load-bearing beam according to claim 1, characterized in that: The conveying component comprises a conveying frame (11), wherein two conveying frames (11) are respectively fixedly connected to the bottom shell (10) at two sides of the detection component (24), each conveying frame (11) is evenly distributed and rotatably connected to a group of conveying rollers (14), and each group of conveying rollers (14) is drivingly connected to a conveyor belt (12).

5. A shear force detection device for a building load-bearing beam according to claim 4, characterized in that: The upper surface of the conveyor belt (12) is flush with the upper edge of the bottom shell (10).

6. A shear force detection device for a building load-bearing beam according to claim 5, characterized in that: A first motor (13) is provided on one side of the conveying frame (11), and an output shaft of the first motor (13) is connected to one of the outer end conveying rollers (14).

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