A bearing capacity detection device for a house main body structure
By combining an electric push rod and auxiliary devices, the problem of tilting and damage caused by unstable fixing of the rebound hammer was solved, thus achieving stable fixing and reliable detection of the rebound hammer.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU JIUXIN ENG TESTING CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-06-09
AI Technical Summary
Existing load-bearing capacity testing devices are prone to causing the rebound hammer to tilt or be damaged when fixing it, and the fixing is unstable, which affects the testing results.
The device employs an electric push rod and auxiliary devices, including a guide wheel, a lead screw, a guide rod, and a fixing mechanism. The rubber guide wheel contacts the surface of the rebound hammer, and together with the clamping plate and fixing mechanism, the rebound hammer is stably fixed.
This ensures the stability of the rebound hammer during the testing process, avoids skewing and damage, and improves the reliability and stability of the testing.
Smart Images
Figure CN224341370U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of building inspection technology, specifically 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 load-bearing capacity of a building is mainly determined by testing the concrete strength, carbonation, mechanical properties, chemical composition, and corrosion of the steel reinforcement components. This requires the use of load-bearing capacity testing equipment.
[0003] For example, the bearing capacity testing device for the main structure of a building disclosed in announcement number "CN222212539U" uses a rebound hammer mounting assembly. First, the rebound hammer body is inserted into the fixing block through a through hole on the surface of the device base. Then, rotating the adjusting block drives the bidirectional lead screw to rotate, which in turn moves the two sets of guide mounting seats, mounting rings and anti-slip pads on the surface of the bidirectional lead screw inward, thereby completing the limiting and fixing of the rebound hammer body. This setting is applicable to rebound hammer bodies of different sizes and improves upon some existing testing devices that use screws to clamp and fix the rebound hammer body. However, after a period of use, the screws may strip, which will affect the use of the rebound hammer body.
[0004] However, in actual use, only the end of the rebound hammer is fixed. This will cause the rebound hammer to tilt at a large angle or even be damaged when the rebound hammer is driven to come into contact with the wall and force is applied. Therefore, we propose a load-bearing capacity testing device for the main structure of a building. Utility Model Content
[0005] The purpose of this invention is to provide a load-bearing capacity testing device for the main structure of a building, so as to solve the problems mentioned in the background art.
[0006] To achieve the above objectives, the present invention provides the following technical solution: a load-bearing capacity testing device for the main structure of a house, comprising a support and a rebound hammer body, wherein an electric push rod is provided on the support for driving the rebound hammer body to move, a fixing mechanism for fixing the rebound hammer body is provided on the output shaft of the electric push rod, and an auxiliary device is provided on the support.
[0007] The auxiliary device includes:
[0008] Guide wheels are used to guide the rebound hammer body in conjunction with the clamping plate;
[0009] Lead screw, used to control the movement of clamping plates;
[0010] Guide rod, the guide rod is used to guide the clamping plate.
[0011] Preferably, the lead screw passes through the bracket and is threadedly connected to the bracket. One end of the lead screw is fixed with a knob, and the other end of the lead screw is rotatably connected to one side of the clamping plate. A guide wheel is rotatably mounted on the other side of the clamping plate. A guide rod is fixed on the side of the clamping plate near the lead screw. The guide rod passes through the bracket and is slidably connected to the bracket. By rotating the knob to control the rotation of the lead screw, the lead screw can drive the clamping plate to move towards the center of the bracket. The rubber guide wheel abuts against the surface of the rebound hammer body, thereby fixing the rebound hammer body without affecting its normal left and right movement. By clamping and supporting the rebound hammer body and cooperating with the fixing mechanism, the rebound hammer body is prevented from tilting during the testing process, thus avoiding damage to the rebound hammer body.
[0012] Preferably, the electric push rod is fixed to the left side of the bracket, and the output shaft of the electric push rod passes through the bracket. The fixing mechanism includes a fixing frame, one side of which is fixed to the output shaft of the electric push rod, and the other side of the fixing frame is hinged to a clamping rod. A contact block is fixed to the side of the clamping rod away from the center of the fixing frame. A threaded slider is threadedly connected to the outer surface of the fixing frame, and a contact ring is fixed to the side of the threaded slider near the clamping rod. By inserting the rebound hammer body into the fixing frame and rotating the threaded slider, the threaded slider moves towards the side near the clamping rod. The threaded slider moves with the contact ring. When the contact ring contacts the contact block, it pushes the clamping rod towards the side near the center of the fixing frame, and the clamping rod contacts the surface of the rebound hammer body, thus enabling the fixing of rebound hammer bodies of different sizes and specifications.
[0013] Preferably, a handle is fixed to the side of the bracket, and an anti-slip pad is provided on the right side of the bracket. The handle makes it easier for staff to hold the entire device, and the anti-slip pad ensures the stability of the bracket when it is in contact with the wall.
[0014] Compared with the prior art, this utility model provides a device for testing the load-bearing capacity of the main structure of a house, which has the following beneficial effects:
[0015] 1. The load-bearing capacity testing device for the main structure of the building, through the auxiliary device, allows manual rotation of the knob to control the rotation of the lead screw. The lead screw can then drive the clamping plate to move towards the center of the support. The rubber guide wheel contacts the surface of the rebound hammer body, thus fixing the rebound hammer body without affecting its normal left and right movement. By clamping and supporting the rebound hammer body, and in conjunction with the fixing mechanism, the device prevents the rebound hammer body from tilting during the testing process, thus avoiding damage to the rebound hammer body.
[0016] 2. The load-bearing capacity testing device for the main structure of the building is designed with handles to make it easier for staff to hold the device, and anti-slip pads to ensure the stability of the support when it comes into contact with the wall. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the overall front view of the present invention;
[0018] Figure 2 This is a schematic diagram of the connection structure between the bracket and auxiliary device of this utility model;
[0019] Figure 3 This is a cross-sectional view of the fixing mechanism of this utility model.
[0020] In the diagram: 1. Support; 2. Rebound meter body; 3. Fixing mechanism; 31. Fixing frame; 32. Clamping rod; 33. Abutting block; 34. Threaded slider; 35. Abutting ring; 4. Auxiliary device; 41. Guide wheel; 42. Clamping plate; 43. Lead screw; 44. Guide rod; 45. Knob; 5. Electric push rod; 6. Handle; 7. Anti-slip pad. Detailed Implementation
[0021] like Figures 1-3 As shown, this utility model provides a technical solution: a load-bearing capacity testing device for the main structure of a house, including a bracket 1 and a rebound hammer body 2. An electric push rod 5 is provided on the bracket 1 to drive the rebound hammer body 2 to move. A fixing mechanism 3 for fixing the rebound hammer body 2 is provided on the output shaft of the electric push rod 5. An auxiliary device 4 is provided on the bracket 1. The auxiliary device 4 includes: a guide wheel 41, a clamping plate 42, a lead screw 43, a guide rod 44, and a knob 45.
[0022] The lead screw 43 passes through the bracket 1 and is threadedly connected to the bracket 1. A knob 45 is fixed to one end of the lead screw 43, and the other end of the lead screw 43 is rotatably connected to one side of the clamping plate 42. A guide wheel 41 is rotatably installed on the other side of the clamping plate 42. A guide rod 44 is fixed to the side of the clamping plate 42 near the lead screw 43. The guide rod 44 passes through the bracket 1 and is slidably connected to the bracket 1. By rotating the knob 45, the lead screw 43 is controlled to rotate, and the lead screw 43 can drive the clamping plate 42 to move towards the center of the bracket 1. The rubber guide wheel 41 abuts against the surface of the rebound hammer body 2, thereby fixing the rebound hammer body 2 without affecting the normal left and right movement of the rebound hammer body 2. By clamping and supporting the rebound hammer body 2, and in conjunction with the fixing mechanism 3, the rebound hammer body 2 is prevented from tilting during the testing process, which would cause damage to the rebound hammer body 2.
[0023] The electric push rod 5 is fixed to the left side of the bracket 1. The output shaft of the electric push rod 5 passes through the bracket 1. The fixing mechanism 3 includes a fixing frame 31. One side of the fixing frame 31 is fixed to the output shaft of the electric push rod 5. The other side of the fixing frame 31 is hinged to a clamping rod 32. A contact block 33 is fixed to the side of the clamping rod 32 away from the center of the fixing frame 31. A threaded slider 34 is threadedly connected to the outer surface of the fixing frame 31. A contact ring 35 is fixed to the side of the threaded slider 34 near the clamping rod 32. By inserting the rebounder body 2 into the fixing frame 31 and rotating the threaded slider 34, the threaded slider 34 moves towards the side near the clamping rod 32. The threaded slider 34 moves together with the contact ring 35. When the contact ring 35 abuts against the contact block 33, it can push the clamping rod 32 towards the side near the center of the fixing frame 31. The clamping rod 32 can then abut against the surface of the rebounder body 2, thus enabling the fixing of rebounder bodies 2 of different sizes and specifications.
[0024] A handle 6 is fixed to the side of the bracket 1, and an anti-slip pad 7 is provided on the right side of the bracket 1. The handle 6 makes it easier for staff to hold the entire device, and the anti-slip pad 7 ensures the stability of the bracket 1 when it is in contact with the wall.
[0025] In this utility model, when in use, the rebounder body 2 is inserted into the fixing frame 31, and the threaded slider 34 is rotated so that the threaded slider 34 moves to the side closer to the clamping rod 32. The threaded slider 34 moves together with the abutment ring 35. When the abutment ring 35 abuts against the abutment block 33, it can push the clamping rod 32 to move to the side closer to the center of the fixing frame 31. The clamping rod 32 can then abut against the surface of the rebounder body 2, thereby fixing the rebounder body 2.
[0026] Rotating the knob 45 controls the lead screw 43 to rotate, which in turn drives the clamp 42 to move towards the center of the bracket 1. The rubber guide wheel 41 contacts the surface of the rebounder body 2, thus fixing the rebounder body 2.
[0027] After connecting the electric push rod 5 to an external power source, the operator holds the entire device by gripping the handle 6 and places the right side of the bracket 1 against the wall to be tested. The electric push rod 5 is then activated, which controls the rebound hammer body 2 to move towards the wall to perform load-bearing capacity testing.
[0028] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.
Claims
1. A load-bearing capacity testing device for the main structure of a building, comprising a support (1) and a rebound hammer body (2), characterized in that: The bracket (1) is provided with an electric push rod (5) for driving the rebounder body (2) to move. The output shaft of the electric push rod (5) is provided with a fixing mechanism (3) for fixing the rebounder body (2). The bracket (1) is provided with an auxiliary device (4). The auxiliary device (4) includes: The guide wheel (41) is used to guide the rebound hammer body (2) in conjunction with the clamping plate (42); Lead screw (43) is used to control the movement of clamp (42); Guide rod (44) is used to guide the clamping plate (42).
2. The load-bearing capacity testing device for the main structure of a building according to claim 1, characterized in that: The lead screw (43) passes through the bracket (1) and is threadedly connected to the bracket (1). One end of the lead screw (43) is fixed with a knob (45), and the other end of the lead screw (43) is rotatably connected to one side of the clamp (42).
3. The bearing capacity testing device for the main structure of a building according to claim 2, characterized in that: A guide wheel (41) is rotatably mounted on the other side of the clamping plate (42), and a guide rod (44) is fixed on the side of the clamping plate (42) near the lead screw (43). The guide rod (44) passes through the bracket (1) and is slidably connected to the bracket (1).
4. The load-bearing capacity testing device for the main structure of a building according to claim 1, characterized in that: The electric push rod (5) is fixed on the left side of the bracket (1), and the output shaft of the electric push rod (5) passes through the bracket (1). The fixing mechanism (3) includes a fixing frame (31), and one side of the fixing frame (31) is fixed to the output shaft of the electric push rod (5).
5. The bearing capacity testing device for the main structure of a building according to claim 4, characterized in that: A clamping rod (32) is hinged to the other side of the fixing frame (31). An abutment block (33) is fixed to the side of the clamping rod (32) away from the center of the fixing frame (31). A threaded slider (34) is threaded to the outer surface of the fixing frame (31). An abutment ring (35) is fixed to the side of the threaded slider (34) near the clamping rod (32).
6. The bearing capacity testing device for the main structure of a building according to claim 1, characterized in that: A handle (6) is fixed to the side of the bracket (1), and an anti-slip pad (7) is provided on the right side of the bracket (1).