Bearing capacity detection device of house main body structure

Abstract

The utility model discloses a bearing capacity detection device of a house main body structure, which comprises a bearing capacity detection assembly, the bearing capacity detection assembly comprises a U-shaped vertical base plate, a cylinder and a through hole, a locking installation assembly is arranged on the inner wall of the middle position of the U-shaped vertical base plate, and a resiliometer body is installed on the locking installation assembly in a locking mode. An elastic rod is arranged at the end, close to the penetrating hole, of the rebound apparatus body, cleaning assemblies are arranged on the two sides of the elastic rod and located on the inner wall of the U-shaped vertical base plate, and each cleaning assembly comprises two pressing and pinching clamping plates capable of centripetally clamping the elastic rod and wiping cotton pads bonded to the free ends of the pressing and pinching clamping plates; and the detection free end of the elastic rod is connected to a wall to be detected. According to the utility model, the design of the U-shaped vertical substrate ensures that equipment can be stably and vertically abutted against a wall, errors caused by inclination of the equipment are reduced, the elastic rod can be cleaned after each detection, dust and impurities are prevented from being accumulated, and the service life of the equipment is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of load-bearing capacity testing technology, and in particular, it is a device for testing the load-bearing capacity of the main structure of a building. Background Technology

[0002] The load-bearing capacity of a building structure is determined by multiple factors, including the foundation bearing capacity, concrete strength, and the strength of the installed panels. Among these factors, the easiest to measure is the concrete strength test, which is usually conducted using a rebound hammer. The basic principle of a rebound hammer is that a spring drives a hammer, which strikes a spring rod perpendicular to the concrete surface with constant kinetic energy. This causes localized deformation of the concrete and absorbs some energy, while the rest is converted into the rebound kinetic energy of the hammer. When all the rebound kinetic energy is converted into potential energy, the hammer rebounds to its maximum distance. The instrument displays the maximum rebound distance of the hammer as the rebound value (the ratio of the maximum rebound distance to the initial length of the spring).

[0003] Testing the load-bearing capacity of a building's main structure is a crucial method for assessing its safety and durability. However, traditional equipment presents numerous inconveniences in practical applications. For instance, traditional load-bearing capacity testing equipment typically relies on operators manually adjusting the equipment's position to ensure verticality. Due to the limitations of manual operation and the complexity of the on-site environment (such as uneven ground or walls), it is difficult to achieve perfectly vertical installation every time. If the equipment is not perfectly vertical, the angle of contact between the impact rod and the wall will change, affecting the accuracy of the rebound value. Furthermore, without a dedicated cleaning mechanism, dust and impurities accumulate on the impact rod during use, especially outdoors or in dusty environments. Dust and impurities affect the contact effect between the impact rod and the wall, thus impacting the accuracy of the rebound value and reducing its lifespan. Utility Model Content

[0004] The purpose of this invention is to provide a device for testing the load-bearing capacity of the main structure of a building, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a load-bearing capacity testing device for the main structure of a building, comprising a load-bearing capacity testing assembly, the load-bearing capacity testing assembly comprising a U-shaped vertical base plate capable of vertically abutting against a wall and in a horizontal position, a cylinder installed on the inner wall of one end of the U-shaped vertical base plate, and a through hole formed on the inner wall of the other end of the U-shaped vertical base plate, the outer wall of one end of the U-shaped vertical base plate having the through hole vertically abutting against the wall, and a locking mounting assembly provided on the inner wall at the middle position of the U-shaped vertical base plate. The rebound spring body is locked in place by a locking mounting assembly. The rebound spring body has a spring rod at one end near the perforation. Cleaning components are provided on both sides of the spring rod and on the inner wall of the U-shaped vertical base plate. The cleaning components include two pinch plates that can clamp the spring rod concentrically and wiping cotton pads respectively adhered to the free ends of each pinch plate. The detection free end of the spring rod is grounded to the wall to be tested. The piston rod end of the cylinder presses down the tail end of the rebound spring body, so that the detection end of the spring rod passes through the perforation and completes the test on the wall.

[0006] In a preferred embodiment, mounting ear plates are symmetrically welded to the lower inner wall of the U-shaped vertical substrate, and a positioning crossbar is fixed between the two mounting ear plates. A compression spring is sleeved around the periphery of the positioning crossbar.

[0007] In this preferred embodiment, the two pinch clamps are symmetrically inserted through the periphery of the positioning crossbar, and the compression spring is located between the two pinch clamps with its two ends elastically abutting against the inner walls of the two pinch clamps respectively.

[0008] In a preferred embodiment, the piston rod of the cylinder is bolted to a lower pressure plate, which dynamically presses down on the tail end of the rebound spring body.

[0009] In a preferred embodiment, a handle is bolted to one side of the outer wall of the U-shaped vertical substrate.

[0010] In a preferred embodiment, a fixed support plate is welded to the inner wall of the U-shaped vertical substrate, and the locking and mounting assembly includes a fixed sleeve welded to the top surface of the free end of the fixed support plate and a locking bolt knob with a transverse thread passing through the fixed sleeve.

[0011] In this preferred embodiment, a rubber protective pad is adhered to the inner wall of the fixed sleeve on the side opposite to the locking bolt knob, and the outer wall of the rebound device body elastically abuts against the inner wall of the rubber protective pad.

[0012] In this preferred embodiment, a silicone protective pad is adhered to the screw end of the locking bolt knob. When the locking bolt knob is tightened, the silicone protective pad at the screw end of the locking bolt knob is pressed against the outer wall of the rebound spring body.

[0013] Compared with the prior art, the technical effects and advantages of this utility model are as follows:

[0014] The load-bearing capacity testing device for the main structure of the building features a U-shaped vertical base plate design that ensures the device can be stably and vertically abutted against the wall, reducing errors caused by device tilting. This design allows for testing at the same angle each time, greatly improving the consistency and accuracy of the measurement results. A cylinder acts on the rebound hammer body, ensuring sufficient pressure is applied to the impact rod, thereby obtaining more accurate test data.

[0015] The U-shaped vertical base plate not only provides vertical support, but also enhances the overall mechanical strength through locking mounting components, reducing shaking and vibration of the equipment during operation and further improving the reliability of the test.

[0016] When the impact lever is not in use and retracts into the rebound hammer body, the pinch plate and wiping pad in the cleaning assembly can clean the impact lever after each test, preventing the accumulation of dust and impurities and extending the service life of the equipment. Attached Figure Description

[0017] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the locking and mounting assembly of this utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure between the pinch clamp and the wiping cotton pad of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the diagram: 1. Load-bearing capacity testing assembly; 2. U-shaped vertical base plate; 3. Junction box; 4. Control button; 5. Handle; 6. Cylinder; 7. Lower pressure plate; 8. Fixed support plate; 9. Rebound hammer body; 10. Impact rod; 11. Miniature air pump; 12. Perforation; 13. Mounting ear plate; 14. Cleaning assembly; 15. Locking mounting assembly; 16. Fixing sleeve; 17. Rubber protective pad; 18. Locking bolt knob; 19. Positioning crossbar; 20. Compression spring; 21. Pinch clamp; 22. Wiping cotton pad. Detailed Implementation

[0023] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0024] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0025] This embodiment provides, for example Figures 1 to 3 The illustrated load-bearing capacity testing device for a building's main structure includes a load-bearing capacity testing assembly 1. The assembly includes a U-shaped vertical base plate 2, horizontally positioned and capable of vertically abutting against a wall; a cylinder 6 mounted on the inner wall of one end of the U-shaped vertical base plate 2; and a through hole 12 formed on the inner wall of the other end of the U-shaped vertical base plate 2. The outer wall of one end of the U-shaped vertical base plate 2 with the through hole 12 vertically abuts against the wall, thereby improving verticality and preventing tilting. A locking mounting assembly 15 is provided on the inner wall at the middle position of the U-shaped vertical base plate 2 to lock the load. The device is equipped with a rebound spring body 9. One end of the rebound spring body 9 near the perforation 12 has a spring rod 10. Cleaning components 14 are provided on both sides of the spring rod 10 and on the inner wall of the U-shaped vertical substrate 2. The cleaning components 14 include two pinch plates 21 that can clamp the spring rod 10 concentrically and wiping cotton pads 22 respectively attached to the free ends of each pinch plate 21. The detection free end of the spring rod 10 is grounded to the wall to be tested. The piston rod end of the cylinder 6 presses down the tail end of the rebound spring body 9, so that the detection end of the spring rod 10 passes through the perforation 12 and completes the test on the wall. When the impact rod 10 is not in use and retracts into the rebound device body 9, the two pinch clamps 21 are driven to move centripetally, causing the two pinch clamps 21 to drive the two wiping cotton pads 22 to clamp onto the peripheral outer wall of the impact rod 10. This wipes the periphery and detection end of the impact rod 10 during the retraction process, removing dust and impurities and improving its service life.

[0026] In this embodiment, mounting ear plates 13 are symmetrically welded to the lower inner wall of the U-shaped vertical substrate 2, and a positioning crossbar 19 is fixed between the two mounting ear plates 13. A compression spring 20 is sleeved on the periphery of the positioning crossbar 19.

[0027] In this embodiment, two pinch plates 21 are symmetrically arranged around the positioning crossbar 19. A compression spring 20 is located between the two pinch plates 21, and both ends of the compression spring 20 elastically abut against the inner walls of the two pinch plates 21. When it is necessary to wipe the spring rod 10, the hand can pinch the two pinch plates 21 in a concentric direction to drive the wiping pad 22 to wipe the spring rod 10.

[0028] In this embodiment, a lower pressure plate 7 is bolted to the free end of the piston rod of the cylinder 6, and the lower pressure plate 7 dynamically presses down on the tail end of the rebound device body 9. A miniature air pump 11 for supplying air to the cylinder 6 is provided on the top surface of the U-shaped vertical base plate 2.

[0029] In this embodiment, a handle 5 is bolted to one outer wall of the U-shaped vertical substrate 2. Above the handle 5 and located on the outer wall of the U-shaped vertical substrate 2, there is a junction box 3. A control button 4 is provided on the outer wall of the junction box 3. The junction box 3 contains a PLC for controlling the opening and closing of the cylinder 6, while the rebound spring body 9 requires manual operation of the switch on the outer wall of the rebound spring body 9 itself.

[0030] In this embodiment, a fixed support plate 8 is welded to the inner wall of the U-shaped vertical base plate 2. The locking and mounting assembly 15 includes a fixed sleeve 16 welded to the top surface of the free end of the fixed support plate 8 and a locking bolt knob 18 with a transverse thread passing through the fixed sleeve 16. The fixed support plate 8 provides a solid foundation, ensuring the stable installation of the rebound hammer body 9, improving the stability of the equipment, and reducing the impact of vibration on the test results. The locking bolt knob 18 can quickly lock or unlock the rebound hammer body 9, facilitating the replacement or repair of the rebound hammer body 9 and reducing maintenance difficulty.

[0031] In this embodiment, a rubber protective pad 17 is adhered to the inner wall of the fixed sleeve 16 on the side opposite to the locking bolt knob 18, and the outer wall of the rebound hammer body 9 elastically abuts against the inner wall of the rubber protective pad 17. The rubber protective pad 17 provides good cushioning, preventing damage to the rebound hammer body 9, protecting the precision instrument, and extending its service life. The rubber protective pad 17 ensures a tight contact between the rebound hammer body 9 and the fixed sleeve 16, reducing shaking, minimizing unnecessary vibration, and improving detection accuracy.

[0032] In this embodiment, a silicone protective pad is adhered to the screw end of the locking bolt knob 18. When the locking bolt knob 18 is tightened, the silicone protective pad at the screw end of the locking bolt knob 18 is pressed against the outer wall of the rebound hammer body 9. At the same time, the pressure pushes the rebound hammer body 9 against the rubber protective pad 17, thereby fixing the rebound hammer body 9 in the fixing sleeve 16. When it is necessary to disassemble or replace the rebound hammer body 9, the locking bolt knob 18 can be loosened for disassembly. The silicone protective pad and the rubber protective pad 17 work together to provide double protection and higher safety, preventing accidental loosening. By rotating the locking bolt knob 18, the fixing force can be adjusted as needed. The adjustable design adapts to different environmental requirements, enhancing the applicability of the equipment.

[0033] Working principle:

[0034] The load-bearing capacity testing device for the main structure of the house uses a U-shaped vertical base plate 2 in the load-bearing capacity testing assembly 1 to be vertically abutted against the wall to be tested. The rebound hammer body 9 is securely installed in the fixing sleeve 16 using the locking bolt knob 18. At this time, the rubber protective pad 17 and the silicone protective pad protect the rebound hammer body 9 from damage. The piston rod of the cylinder 6 is activated by the control button 4 to drive the lower pressure plate 7 to move downward, thereby applying pressure to the rebound hammer body 9. As the rebound hammer body 9 is under pressure, the impact rod 10 passes through the perforation 12, contacts and impacts the wall surface, completing one load-bearing capacity testing process. The data of this test is recorded based on the feedback from the rebound hammer body 9.

[0035] After the test is completed, the cylinder 6 reverses its movement, causing the impact rod 10 to retract into the rebound hammer body 9. During the retraction of the impact rod 10, the clamp 21 is manually pressed and moved inward, so that the wiping cotton pad 22 wipes the periphery and testing end of the impact rod 10 to remove dust and impurities and ensure the accuracy of the next use.

[0036] If the rebounder body 9 needs to be replaced or repaired, it can be easily removed from the retaining sleeve 16 by loosening the locking screw knob 18.

[0037] It should be noted that, in this document, relational terms such as "one" and "two" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A load-bearing capacity testing device for the main structure of a building, comprising a load-bearing capacity testing assembly (1), characterized in that: The load-bearing capacity testing assembly (1) includes a U-shaped vertical base plate (2) that can be vertically abutted against the wall and is in a horizontal state, a cylinder (6) installed on the inner wall of one end of the U-shaped vertical base plate (2), and a through hole (12) opened on the inner wall of the other end of the U-shaped vertical base plate (2). The outer wall of one end of the U-shaped vertical base plate (2) with the through hole (12) is vertically abutted against the wall. A locking mounting assembly (15) is provided on the inner wall of the middle position of the U-shaped vertical base plate (2). The locking mounting assembly (15) locks the rebound spring body (9) in place. The rebound spring body (9) has a spring rod (10) at one end near the through hole (12). Cleaning components (14) are provided on both sides of the impact rod (10) and on the inner wall of the U-shaped vertical base plate (2). The cleaning components (14) include two pinch plates (21) that can clamp the impact rod (10) in a concentric manner and wiping cotton pads (22) respectively bonded to the free end of each pinch plate (21). The detection free end of the impact rod (10) is grounded on the wall to be tested. The piston rod end of the cylinder (6) presses down the tail end of the rebound instrument body (9), so that the detection end of the impact rod (10) passes through the perforation (12) and completes the test on the wall.

2. The bearing capacity testing device for the main structure of a building according to claim 1, characterized in that: The lower inner wall of the U-shaped vertical base plate (2) is symmetrically welded with mounting ear plates (13), and a positioning crossbar (19) is fixed between the two mounting ear plates (13). A compression spring (20) is sleeved on the periphery of the positioning crossbar (19).

3. The bearing capacity testing device for the main structure of a building according to claim 2, characterized in that: Two pinch clamps (21) are symmetrically inserted around the positioning crossbar (19). The compression spring (20) is located between the two pinch clamps (21) and the two ends of the compression spring (20) elastically abut against the inner walls of the two pinch clamps (21).

4. The load-bearing capacity testing device for the main structure of a building according to claim 3, characterized in that: The piston rod of the cylinder (6) is bolted to a lower pressure plate (7), which dynamically presses down on the tail end of the rebounder body (9).

5. The bearing capacity testing device for the main structure of a building according to claim 4, characterized in that: A handle (5) is bolted to one side of the outer wall of the U-shaped vertical substrate (2).

6. The bearing capacity testing device for the main structure of a building according to claim 5, characterized in that: The U-shaped vertical substrate (2) has a fixed support plate (8) welded to its inner middle wall. The locking and mounting assembly (15) includes a fixed sleeve (16) welded to the top surface of the free end of the fixed support plate (8) and a locking bolt knob (18) with a transverse thread passing through the fixed sleeve (16).

7. The bearing capacity testing device for the main structure of a building according to claim 6, characterized in that: A rubber protective pad (17) is bonded to the inner wall of the fixed sleeve (16) on the side opposite to the locking bolt knob (18), and the outer wall of the rebounder body (9) elastically abuts against the inner wall of the rubber protective pad (17).

8. The bearing capacity testing device for the main structure of a building according to claim 7, characterized in that: The screw end of the locking bolt knob (18) is bonded with a silicone protective pad. When the locking bolt knob (18) is tightened, the silicone protective pad at the screw end of the locking bolt knob (18) is pressed against the outer wall of the rebound hammer body (9).

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