Building pile foundation static load detection equipment

Abstract

This utility model belongs to the field of static load testing of building pile foundations, specifically a novel testing device. Its main testing body has a base plate at its lower end and a placement groove on its upper surface. Lifting limit rails are fixed on both sides of the base plate, housing a built-in lifting linear screw motor, and an intelligent touch panel control device is mounted on the outside. A horizontal mounting frame is provided between the lifting limit rails and connected to the lifting linear screw motor. Horizontal linear screw motors are mounted on both sides of the horizontal mounting frame, and a clamping control frame is slidably positioned within and connected to it. A clamping dual-axis screw motor is located at the center of the clamping control frame, with clamping lifting frames at both ends for fixing the counterweight. An adjusting dual-axis screw motor is located on the upper surface of the clamping lifting frame, with positioning pushers connected to both ends to push the counterweight. This device, through the lifting limit rails, allows for quick assembly and disassembly of the counterweight, improving efficiency and ensuring safety. The positioning pushers can precisely adjust the counterweight position, making installation more convenient and improving usage accuracy.

Description

Technical Field

[0001] This utility model relates to the field of static load testing technology for building pile foundations, and in particular to a static load testing device for building pile foundations. Background Technology

[0002] Static load testing equipment for building pile foundations is a key instrument used to evaluate the bearing capacity of single piles or pile groups. Its core function is to monitor the settlement, uplift displacement, or horizontal displacement of the pile top in real time by applying vertical pressure, uplift force, or horizontal thrust in stages, and then plot the load-displacement curve (QS curve) to determine the ultimate bearing capacity of the pile foundation. The equipment mainly consists of a surcharge reaction device (such as a counterweight block of a steel beam load-bearing platform), a hydraulic jack system, a load and displacement testing system (including high-precision pressure sensors and displacement sensors), and a data acquisition and control unit. It adopts standard test procedures such as the slow-maintained load method, which can simulate the actual stress state of the pile foundation, with a detection accuracy within ±1%.

[0003] Chinese utility model patent application CN202222424389.5 discloses a static load testing device for building pile foundations, relating to the field of static load testing technology. This utility model includes a base plate, a load-bearing plate, and a jack. The output end of the jack is installed on the lower side of the load-bearing plate. The base plate has vertically oriented through holes corresponding to the jack. Four rods are installed on the upper part of the base plate, with the upper ends of the rods penetrating the load-bearing plate. A limit assembly is threaded into the upper part of each rod. A hydraulic rod is installed inside each rod, and a conical tip is installed at the output end of the hydraulic rod, penetrating the base plate. This utility model improves the stability of the base plate when fixed to the ground by using the hydraulic rods to push the conical tip into the soil. The base plate increases the contact area between the device and the ground, reducing the probability of the device sinking under the pressure of heavy objects. The rods improve the stability of the load-bearing plate during vertical sliding, reducing the probability of the device tilting.

[0004] Regarding the aforementioned technologies, the inventors believe that the following defects exist: In the prior art, the disassembly and assembly of counterweights requires external hoisting equipment for positioning assistance. During the operation, there are problems such as low positioning accuracy and poor process connection efficiency, which increases the intensity of manual intervention by more than 30%, and poses safety hazards such as falling objects from heights. Utility Model Content

[0005] To address the aforementioned problems, this utility model provides a static load testing device for building pile foundations.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution: a static load testing device for building pile foundations, comprising: The detection body is the main working device of the apparatus. It has a base plate at its lower end and a placement groove on its upper surface. The lifting limit rails are fixedly installed on both sides of the base plate, and each has a lifting linear screw motor fixedly installed inside. A smart touch panel is located on the outside of the lifting limit rail and is used to control the operation of the device; A horizontal mounting frame is disposed between the lifting limit rails, and its two outer sides are threadedly connected to the lifting linear screw motor respectively; A horizontal linear screw motor is installed on both sides of the horizontal mounting frame; The clamping control frame has two ends that are slidably disposed within the horizontal mounting frame and threadedly connected to the horizontal linear screw motor, respectively. A dual-axis screw motor is clamped and embedded in the center of the clamping control frame; The clamping and lifting frames are respectively set at both ends of the clamping control frame, and are used to clamp, lift and fix the counterweight. A dual-axis screw motor is fixed to the upper surface of the clamping and lifting frame to adjust the position of the counterweight. The positioning pusher is located at both ends of the clamping and lifting frame and is threadedly connected to both ends of the adjusting dual-axis screw motor, and is used to push the counterweight to move.

[0007] By adopting the above technical solutions, the convenience and efficiency of adding counterweight materials are improved.

[0008] Furthermore, both the lifting linear screw motor and the horizontal linear screw motor are synchronously controlled and driven by a synchronous control circuit board.

[0009] By adopting the above technical solution, the lifting effect of the device on the counterweight material is improved.

[0010] Furthermore, vertical limiting blocks are provided on both sides of the horizontal mounting frame, which slide and fit inside the lifting limiting rail, and vertical threaded holes are provided inside the vertical limiting blocks for threaded connection with the lifting linear screw motor.

[0011] By adopting the above technical solutions, the stability and functional effect of structural lifting and moving are enhanced.

[0012] Furthermore, the clamping control frame is provided with translation sliders at both ends that are slidably connected to the inside of the two sides of the horizontal mounting frame, and a horizontal threaded hole is provided inside the translation slider for threaded connection with the horizontal linear screw motor.

[0013] By adopting the above technical solution, the drive device can move telescopically, enabling convenient assembly and disassembly of raw materials by moving outwards.

[0014] Furthermore, one end of the clamping and lifting frame is provided with a mirror slider, and a mirror threaded hole is provided inside the mirror slider, and the mirror slider is slidably connected to the clamping control frame.

[0015] By adopting the above technical solution, the clamping control frame is moved in a mirror image, thereby improving the effect of structural clamping.

[0016] Furthermore, the positioning pusher includes: The positioning and mounting frame has its lower surface in contact with the upper surface of the clamping and lifting frame, and a movable threaded tube that is threadedly connected to the adjusting dual-axis screw motor is fixedly welded inside. The translational push plate has a rotating connection hole at one end that is rotatably connected to the outside of the movable threaded tube.

[0017] By adopting the above technical solution, the counterweight material is moved inside the device to adjust its position.

[0018] Furthermore, a fixed-angle gear ring is fitted onto the outer side of the movable threaded tube, and one side of the fixed-angle gear ring is welded and fixed to the translational push plate.

[0019] By adopting the above technical solution, it is convenient to adjust the usage angle of the translation push plate.

[0020] Furthermore, a fixed-angle motor with a power gear at its output end is embedded in the outer side of the positioning and mounting frame. The power gear and the fixed-angle gear mesh to control the operating angle of the translation push plate.

[0021] By adopting the above technical solution, the translational push plate is rotated and positioned, thereby improving the ease of use of the device.

[0022] In summary, this utility model has the following beneficial effects: 1. In this application, a lifting limit rail is used to achieve rapid lifting and disassembly of the counterweight in an integrated manner, thereby improving the efficiency of counterweight disassembly and assembly, reducing manual intervention, and increasing work safety. 2. In this application, a positioning pusher is used, which can flexibly and accurately adjust the position of the counterweight, improving the convenience of counterweight installation and the accuracy of use. Attached Figure Description

[0023] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model; Figure 2 This is a schematic diagram of the working state structure of an embodiment of the present utility model; Figure 3 This is a structural schematic diagram of the horizontal mounting frame portion in this utility model; Figure 4 This is a structural schematic diagram of the positioning and pushing component in this utility model.

[0024] In the diagram: 1. Detection body; 2. Lifting limit rail; 3. Lifting linear screw motor; 4. Intelligent touch panel; 5. Horizontal mounting frame; 6. Horizontal linear screw motor; 7. Clamping control frame; 8. Clamping dual-axis screw motor; 9. Clamping lifting frame; 10. Adjusting dual-axis screw motor; 11. Positioning pusher; 111. Positioning mounting frame; 112. Translation push plate; 113. Fixed angle gear ring; 114. Fixed angle motor. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0026] like Figures 1-4 As shown in the figure, this application discloses a static load testing device for building pile foundations, comprising: The detection body 1 is the main working device of the apparatus, with a base plate at its lower end and a placement groove on its upper surface. The lifting limit rail 2 is fixedly installed on both sides of the base plate, and a lifting linear screw motor 3 is fixedly installed inside each of them; The intelligent touch panel 4 is located on the outside of the lifting limit rail 2 and is used to control the operation of the device; A horizontal mounting frame 5 is set between the lifting limit rails 2, and its two outer sides are threadedly connected to the lifting linear screw motor 3 respectively; vertical limit blocks are provided on both sides of the horizontal mounting frame 5, which slide and fit inside the lifting limit rails 2, and vertical threaded holes are opened inside the vertical limit blocks to be threadedly connected to the lifting linear screw motor 3.

[0027] Horizontal linear screw motors 6 are installed on both sides of the horizontal mounting frame 5; The clamping control frame 7 has two ends that are slidably disposed within the horizontal mounting frame 5 and threadedly connected to the horizontal linear screw motor 6 respectively; both ends of the clamping control frame 7 are provided with translation sliders that are slidably connected to the inside of both sides of the horizontal mounting frame 5, and the translation sliders have horizontal threaded holes that are threadedly connected to the horizontal linear screw motor 6.

[0028] The clamping dual-axis screw motor 8 is embedded in the center of the clamping control frame 7; the lifting linear screw motor 3 and the horizontal linear screw motor 6 are both synchronously controlled and driven by the synchronous control circuit board.

[0029] The clamping and lifting frame 9 is respectively set at both ends of the clamping control frame 7 and is used to clamp, lift and fix the counterweight. One end of the clamping and lifting frame 9 is provided with a mirror slider, and a mirror threaded hole is provided inside the mirror slider. The mirror slider is slidably connected to the clamping control frame 7.

[0030] The adjusting dual-axis screw motor 10 is fixed on the upper surface of the clamping and lifting frame 9 and is used to adjust the position of the counterweight. A positioning pusher 11 is disposed at both ends of the clamping and lifting frame 9 and threadedly connected to both ends of the adjusting dual-axis screw motor 10, for pushing the counterweight to move; the positioning pusher 11 includes: The positioning mounting frame 111 has its lower surface fitted to the upper surface of the clamping and lifting frame 9, and a movable threaded tube that is threadedly connected to the adjusting dual-axis screw motor 10 is fixedly welded inside. The translation push plate 112 has a rotating connection hole at one end that is rotatably connected to the outside of the movable threaded tube. A fixed angle gear ring 113 is fitted on the outside of the movable threaded tube, and one side of the fixed angle gear ring 113 is welded and fixed to the translation push plate 112. A fixed angle motor 114 with a power gear at the output end is embedded in the outside of the positioning mounting frame 111. The power gear and the fixed angle gear ring 113 mesh to control the operating angle of the translation push plate 112.

[0031] The operating principle of the static load testing equipment for building pile foundations in this embodiment is as follows: During use, the testing body 1 is first placed at the location of the building pile foundation to be tested, with the base plate firmly in contact with the ground, ensuring the placement groove faces upwards for placing the relevant testing components. The lifting linear screw motor 3 is activated via the intelligent touch panel 4. The rotation of the lifting linear screw motor 3 drives the horizontal mounting frame 5 to move upwards or downwards along the lifting limit rail 2. Because the vertical limit blocks on both sides of the horizontal mounting frame 5 slide against the inside of the lifting limit rail 2, and the vertical threaded holes inside the vertical limit blocks are threadedly connected to the lifting linear screw motor 3, precise vertical movement of the horizontal mounting frame 5 can be achieved.

[0032] Once the horizontal mounting frame 5 is moved to the appropriate height, the horizontal linear screw motor 6 is rotated by the intelligent touch panel 4. The horizontal linear screw motor 6 drives the clamping control frame 7 to move horizontally along the horizontal mounting frame 5. The translation sliders at both ends of the clamping control frame 7 slide inside the horizontal mounting frame 5 on both sides, and the horizontal threaded holes inside the translation sliders are threadedly connected to the horizontal linear screw motor 6, thereby achieving precise horizontal positioning of the clamping control frame 7.

[0033] Next, the clamping dual-axis screw motor 8 is started. The clamping dual-axis screw motor 8 drives the clamping lifting frame 9 to move closer to the center or separate to clamp or release the counterweight. The mirror slider at one end of the clamping lifting frame 9 slides in the clamping control frame 7, and the mirror threaded hole inside the mirror slider is threadedly connected to the clamping dual-axis screw motor 8 to ensure the stability of the clamping action.

[0034] Once the counterweight is clamped, if the position of the counterweight needs to be adjusted, the adjusting dual-axis screw motor 10 is started. The adjusting dual-axis screw motor 10 drives the positioning pusher 11 to move. The positioning mounting frame 111 in the positioning pusher 11 is threadedly connected to the adjusting dual-axis screw motor 10 through an internally fixed welded moving threaded tube, thereby realizing the movement of the positioning mounting frame 111. When the angle of the translation push plate 112 needs to be adjusted, the fixed angle motor 114 is started. The output power gear of the fixed angle motor 114 meshes with the fixed angle gear ring 113. The fixed angle gear ring 113 is welded and fixed to the translation push plate 112, thereby driving the translation push plate 112 to rotate around the rotating connection hole, realizing the adjustment of the angle of the translation push plate 112. The translation push plate 112 pushes the counterweight to the appropriate position, completing the counterweight arrangement of the building pile foundation static load testing equipment, so as to carry out subsequent static load testing work.

[0035] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A static load testing device for building pile foundations, characterized in that, include: The detection body (1) has a base plate at its lower end and a placement groove on its upper surface; The lifting limit rail (2) is fixedly installed on both sides of the base plate, and a lifting linear screw motor (3) is fixedly installed inside each of them. A smart touch panel (4) is disposed on the outside of the lifting limit rail (2); A horizontal mounting frame (5) is set between the lifting limit rails (2), and its two outer sides are threadedly connected to the lifting linear screw motor (3); A horizontal linear screw motor (6) is installed on both sides of the horizontal mounting frame (5); The clamping control frame (7) is slidably disposed at both ends within the horizontal mounting frame (5) and threadedly connected to the horizontal linear screw motor (6); A dual-axis screw motor (8) is clamped and embedded in the center of the clamping control frame (7); The clamping and lifting frames (9) are respectively set at both ends of the clamping control frame (7) for clamping, lifting and fixing the counterweight; The adjusting dual-axis screw motor (10) is fixed on the upper surface of the clamping and lifting frame (9) and is used to adjust the position of the counterweight. The positioning pusher (11) is provided at both ends of the clamping and lifting frame (9) and threadedly connected to both ends of the adjusting dual-axis screw motor (10) to push the counterweight to move.

2. The static load testing equipment for building pile foundations according to claim 1, characterized in that, Both the lifting linear screw motor (3) and the horizontal linear screw motor (6) are synchronously controlled and driven by a synchronous control circuit board.

3. The static load testing equipment for building pile foundations according to claim 1, characterized in that, The horizontal mounting frame (5) is provided with vertical limiting blocks on both sides that slide and fit inside the lifting limiting rail (2), and vertical threaded holes that are threadedly connected to the lifting linear screw motor (3) are provided inside the vertical limiting blocks.

4. The static load testing equipment for building pile foundations according to claim 1, characterized in that, The clamping control frame (7) is provided with translation sliders at both ends that are slidably connected to the inside of the horizontal mounting frame (5) on both sides. A horizontal threaded hole is provided inside the translation slider that is threadedly connected to the horizontal linear screw motor (6).

5. The static load testing equipment for building pile foundations according to claim 1, characterized in that, One end of the clamping and lifting frame (9) is provided with a mirror slider, and a mirror threaded hole is provided inside the mirror slider. The mirror slider is slidably connected to the clamping control frame (7).

6. The static load testing equipment for building pile foundations according to claim 1, characterized in that, The positioning pusher (11) includes: The lower surface of the positioning mounting frame (111) is in contact with the upper surface of the clamping and lifting frame (9), and a movable threaded tube that is threadedly connected to the adjusting dual-axis screw motor (10) is fixedly welded inside. The translation push plate (112) has a rotating connection hole at one end that is rotatably connected to the outside of the movable threaded tube.

7. The static load testing equipment for building pile foundations according to claim 6, characterized in that, A fixed angle gear ring (113) is fitted on the outside of the movable threaded tube, and one side of the fixed angle gear ring (113) is welded and fixed to the translation push plate (112).

8. The static load testing equipment for building pile foundations according to claim 7, characterized in that, A fixed-angle motor (114) with a power gear at the output end is inlaid on the outside of the positioning mounting frame (111). The power gear meshes with the fixed-angle gear ring (113) to control the operating angle of the translation push plate (112).

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