House main body structure bearing capacity detection device
By designing a structural bearing capacity testing device for buildings, and utilizing the combination of a rectangular frame and an impact column, the device ensures that the rebound hammer impacts the wall vertically and controls the release height of the impact hammer to be consistent. This solves the problem of inaccurate measurements by electronic rebound hammers and achieves higher testing accuracy.
Patent Information
- Application Number
- CN202520218843.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2025-12-09
- Estimated Expiration
- 2035-02-12
AI Technical Summary
In existing technologies, electronic rebound hammers suffer from significant data errors due to variations in angle and force when measuring the load-bearing capacity of building structures, resulting in inaccurate measurement results.
A device for testing the load-bearing capacity of a building's main structure was designed. By using a rectangular frame, support frame, rectangular tube, and impact column in combination, the device ensures that the rebound hammer impacts the wall vertically. Through the cooperation of connecting rod, rotating shaft, swing arm, and limit rod, the device controls the release height of the impact hammer to be consistent, ensuring that the dynamic potential energy of each impact is the same.
It reduces the measurement error of the rebound hammer, improves the accuracy and consistency of load-bearing capacity testing, and reduces data errors.
Smart Images
Figure CN223650349U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of building engineering, concretely is a house main body structure bearing capacity detection device. BACKGROUND
[0002] The bearing capacity of house structure is determined by multiple factors, which can be divided into foundation bearing capacity, concrete strength, and installed plate strength, etc. The most easily measured factor is the concrete strength test. The staff generally tests by using an electronic rebound hammer. By pressing the probe at the bottom end of the rebound hammer, the spring-driven weight inside the rebound hammer is launched. The weight hits the rebounding rod directly contacting the surface of the concrete with constant kinetic energy, causing local concrete to deform and absorb part of the energy. The other part of the energy is converted into the rebounding kinetic energy of the weight. When all the rebounding kinetic energy is converted into potential energy, the weight rebounds to the maximum distance, causing the vernier inside the rebound hammer to rebound. The contact resistance at the vernier guide rail of the rebound hammer uses different resistance values generated by different vernier positions to measure different strength values. However, the electronic rebound hammer needs to be tested multiple times to obtain an average value. The angle formed by the rebound hammer and the wall surface changes each time the rebound hammer is used. The spring has a certain force difference value each time it is compressed and impacted, making it difficult to ensure that the measurement is always at the same angle and the same force. This inevitably causes data errors, and the measurement method is not rigorous enough, resulting in inaccurate test results. UTILITY MODEL CONTENT
[0003] (I) Technical problem solved
[0004] In view of the deficiencies of the prior art, the utility model provides a house main body structure bearing capacity detection device, which solves the problems raised in the above background technology.
[0005] (II) Technical solution
[0006] To achieve the above objectives, this utility model provides the following technical solution: a building main structure bearing capacity testing device, comprising a base and a rectangular frame fixed to the rear side of the upper surface of the base. Connecting rods are fixedly connected to the upper left and upper right corners of the upper surface of the rectangular frame. A fixing collar is fixedly connected to the front of the outer surface of the connecting rod. A support rod is fixedly connected between the fixing collar and the base. A swing arm is horizontally rotatably connected to the inner side of the fixing collar via an insert rotating shaft. An impact hammer is fixedly connected to the lower surface of the swing arm. Support frames are fixedly connected to the left and right sides of the front of the rectangular frame. A rectangular tube is fixedly connected to the inner side of the support frame. Sliding wheels are rotatably connected to the top and bottom of the inner wall of the rectangular tube. An impact column is slidably inserted into the inner wall of the rectangular tube. A mounting shell is fixedly connected to the back of the impact column. A rebound spring body is disposed inside the mounting shell. A fixing bolt is threadedly connected to the upper surface of the mounting shell. A clamping block is fixedly connected to the bottom end of the fixing bolt. Universal wheels are fixedly connected to the four corners of the lower surface of the base. A limit rod is fixedly connected to the top of the outer surface of the support rod.
[0007] Preferably, an adhesive pad is fixedly connected to the back of the rectangular frame. The adhesive pad is made of rubber and has a thickness of five millimeters.
[0008] Preferably, two sets of rectangular sliding strips are fixedly connected to the inner walls of the left and right sides of the rectangular tube, and a rectangular sliding groove adapted to the rectangular sliding strips is opened on the outer surface of the impact column.
[0009] Preferably, the outer surface of the fixing collar is provided with a ball bearing, and the fixing collar is rotatably connected to the rotating shaft through the ball bearing.
[0010] Preferably, a reinforcing rib is fixedly connected to the lower surface of the connecting rod, and the back of the reinforcing rib is fixedly connected to the front of the rectangular frame.
[0011] Preferably, the base, rectangular frame, and support rod are all made of Q235 steel, and the outer surfaces of the base, rectangular frame, and support rod are all coated with anti-rust paint.
[0012] (III) Beneficial Effects
[0013] Compared with the prior art, this utility model provides a device for testing the load-bearing capacity of the main structure of a building, which has the following beneficial effects:
[0014] 1. The main structure load-bearing capacity testing device of this building uses a rectangular frame, support frame, rectangular tube and impact column in combination. The rebound hammer body is installed on the rear side of the impact column. When the impact hammer hits the front side of the impact column, the impact column drives the rebound hammer body to move backward. The movement trajectory of the impact column is restricted by the rectangular tube, so that the rebound hammer body can always be perpendicular to the wall for impact testing. This ensures the consistency of the impact angle of the rebound hammer body on the wall and further reduces the measurement error of the rebound hammer body.
[0015] 2. This building structure load-bearing capacity testing device, through the coordinated use of a connecting rod, rotating shaft, swing arm, impact hammer, and limiting rod, allows the operator to pull the swing arm forward when controlling the impact hammer to strike the impact column, so that the swing arm is pressed against the limiting rod, and then the swing arm is naturally released, swinging backward and striking the impact column. This ensures that the height of the impact hammer release is the same each time, and thus the dynamic potential energy of the impact hammer striking the impact column is the same each time, ensuring the consistency of the impact force of the rebound hammer body each time, and further reducing the detection error of the building structure load-bearing capacity by the device. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a side view of the present invention.
[0018] Figure 3 , Figure 4 This is a partial cross-sectional structural diagram of the present invention.
[0019] In the diagram: 1. Base; 2. Rectangular frame; 3. Connecting rod; 4. Fixing collar; 5. Support rod; 6. Rotating shaft; 7. Swing arm; 8. Impact hammer; 9. Support frame; 10. Rectangular tube; 11. Sliding wheel; 12. Impact column; 13. Mounting shell; 14. Rebound hammer body; 15. Fixing bolt; 16. Clamping block; 17. Caster wheel; 18. Limiting rod. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] Please see Figures 1-4This utility model provides a technical solution: a device for testing the load-bearing capacity of a building's main structure, comprising a base 1 and a rectangular frame 2 fixed to the rear side of the upper surface of the base 1. Connecting rods 3 are fixedly connected to the upper left and upper right corners of the upper surface of the rectangular frame 2. A fixing collar 4 is fixedly connected to the front of the outer surface of the connecting rod 3. A support rod 5 is fixedly connected between the fixing collar 4 and the base 1. A swing arm 7 is horizontally rotatably connected to the inner side of the fixing collar 4 via an insert rotating shaft 6. An impact hammer 8 is fixedly connected to the lower surface of the swing arm 7. Supports are fixedly connected to the left and right sides of the front of the rectangular frame 2. A rectangular tube 10 is fixedly connected to the inner side of the frame 9. Sliding wheels 11 are rotatably connected to the top and bottom of the inner wall of the rectangular tube 10. An impact column 12 is slidably inserted into the inner wall of the rectangular tube 10. A mounting shell 13 is fixedly connected to the back of the impact column 12. A rebound meter body 14 is housed inside the mounting shell 13. A fixing bolt 15 is threaded onto the upper surface of the mounting shell 13. A clamping block 16 is fixedly connected to the bottom end of the fixing bolt 15. Universal wheels 17 are fixedly connected to the four corners of the lower surface of the base 1. A limit rod 18 is fixedly connected to the top of the outer surface of the support rod 5. The rectangular frame 2, support frame 9, rectangular tube 10, and impact column 12 work together to mount the rebound hammer body 14 on the rear side of the impact column 12. When the impact hammer 8 strikes the front side of the impact column 12, the impact column 12 drives the rebound hammer body 14 to move backward. The movement trajectory of the impact column 12 is restricted by the rectangular tube 10, thus ensuring that the rebound hammer body 14 can always be perpendicular to the wall for impact testing. This guarantees the consistency of the impact angle of the rebound hammer body 14 on the wall and further reduces the measurement error of the rebound hammer body 14. This is achieved through the connecting rod 3, rotating shaft 6, and pendulum... The boom 7, impact hammer 8, and limit rod 18 work together to allow the operator to pull the boom 7 forward when controlling the impact hammer 8 to strike the impact column 12, so that the boom 7 is pressed against the limit rod 18, and then the boom 7 is released naturally, swinging backward and striking the impact column 12. This ensures that the height of the impact hammer 8 is the same each time it is released, and thus the dynamic potential energy of the impact hammer 8 striking the impact column 12 is the same each time. This ensures the consistency of the impact force of the rebound hammer body 14 each time, and further reduces the detection error of the device in the bearing capacity of the main structure of the building.
[0022] In this utility model, in order to further enhance the fit between the rectangular frame 2 and the wall, a bonding pad is fixedly connected to the back of the rectangular frame 2. The bonding pad is made of rubber and has a thickness of five millimeters. By setting the bonding pad, the fit between the rectangular frame 2 and the wall is further enhanced.
[0023] In this invention, in order to further enhance the stability of the movement of the impact column 12, two sets of rectangular slide bars are fixedly connected to the inner walls of the left and right sides of the rectangular tube 10. A rectangular groove adapted to the rectangular slide bars is opened on the outer surface of the impact column 12. By cooperating with the rectangular slide bars and the rectangular groove, the movement trajectory of the impact column 12 is stabilized, thereby further enhancing the stability of the movement of the impact column 12.
[0024] In this invention, in order to further enhance the smoothness of rotation of the rotating shaft 6, a ball bearing is provided on the outer surface of the fixing collar 4. The fixing collar 4 is rotatably connected to the rotating shaft 6 through the ball bearing. By providing the ball bearing, the smoothness of rotation of the rotating shaft 6 is further enhanced.
[0025] In this invention, to further enhance the stability of the connecting rod 3, a reinforcing rib is fixedly connected to the lower surface of the connecting rod 3. The back of the reinforcing rib is fixedly connected to the front of the rectangular frame 2, so that the reinforcing rib plays a stable supporting role for the connecting rod 3, thereby further enhancing the stability of the connecting rod 3.
[0026] In this invention, in order to further enhance the rust resistance of the device, the base 1, the rectangular frame 2 and the support rod 5 are all made of Q235 steel, and the outer surfaces of the base 1, the rectangular frame 2 and the support rod 5 are all coated with anti-rust paint. By spraying anti-rust paint, the rust resistance of the device is further enhanced.
[0027] In use, loosen the fixing bolt 15, place the rebound hammer body 14 inside the mounting shell 13, tighten the fixing bolt 15, and the fixing bolt 15 will drive the clamping block 16 to move downward. The clamping block 16 will fix the rebound hammer body 14. Move the device to the wall using the casters 17, so that the back of the rectangular frame 2 is against the wall. Move the rebound hammer body 14 and the impact column 12 back and forth, so that the probe on the rear side of the rebound hammer body 14 is pressed against the wall. Pull the impact hammer 8 forward, so that the swing arm 7 is pressed against the limit rod 18. Then release the swing arm 7 naturally. The swing arm 7 swings backward and hits the front side of the impact column 12. The impact column 12 drives the rebound hammer body 14 to move backward. The movement trajectory of the impact column 12 is restricted by the rectangular tube 10. The probe on the rebound hammer body 14 hits the wall, thus completing one load-bearing capacity test. Change the impact point and perform multiple tests to obtain load-bearing capacity test data.
[0028] 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 device for testing the load-bearing capacity of a building's main structure, comprising a base (1) and a rectangular frame (2) fixed to the rear side of the upper surface of the base (1), characterized in that: Connecting rods (3) are fixedly connected to the upper left and upper right corners of the upper surface of the rectangular frame (2). A fixing collar (4) is fixedly connected to the front of the outer surface of the connecting rod (3). A support rod (5) is fixedly connected between the fixing collar (4) and the base (1). A swing arm (7) is horizontally rotatably connected to the inner side of the fixing collar (4) through an insert rotating shaft (6). An impact hammer (8) is fixedly connected to the lower surface of the swing arm (7). Support frames (9) are fixedly connected to the left and right sides of the front of the rectangular frame (2). A rectangular tube (10) is fixedly connected to the inner side of the support frame (9). 10) The top and bottom of the inner wall are rotatably connected with sliding wheels (11). The inner wall of the rectangular tube (10) is slidably inserted with an impact column (12). The back of the impact column (12) is fixedly connected with a mounting shell (13). The body of the rebounder (14) is set inside the mounting shell (13). The upper surface of the mounting shell (13) is threaded with a fixing bolt (15). The bottom end of the fixing bolt (15) is fixedly connected with a clamping block (16). The four corners of the lower surface of the base (1) are fixedly connected with casters (17). The top of the outer surface of the support rod (5) is fixedly connected with a limit rod (18).
2. The building structure bearing capacity testing device according to claim 1, characterized in that: The rectangular frame (2) has a bonding pad fixedly connected to its back. The bonding pad is made of rubber and has a thickness of five millimeters.
3. The building structure bearing capacity testing device according to claim 1, characterized in that: The inner walls of the left and right sides of the rectangular tube (10) are fixedly connected with two sets of rectangular slide bars, and the outer surface of the impact column (12) is provided with a rectangular slide groove that matches the rectangular slide bars.
4. The building structure bearing capacity testing device according to claim 1, characterized in that: The outer surface of the fixed collar (4) is provided with a ball bearing, and the fixed collar (4) is rotatably connected to the rotating shaft (6) through the ball bearing.
5. The building structure bearing capacity testing device according to claim 1, characterized in that: The lower surface of the connecting rod (3) is fixedly connected with a reinforcing rib, and the back of the reinforcing rib is fixedly connected to the front of the rectangular frame (2).
6. The building structure bearing capacity testing device according to claim 1, characterized in that: The base (1), rectangular frame (2) and support rod (5) are all made of Q235 steel, and the outer surfaces of the base (1), rectangular frame (2) and support rod (5) are all coated with anti-rust paint.