Pile foundation detection heavy hammer detacher
By designing a pile foundation detection heavy hammer decourse, using the structure of external protective shells and mobile adjustment boards to realize the automatic locking and stable whereabouts of the heavy hammer, solve the problem of inconvenient and misalignment of heavy hammer connection, improve the detection test Accuracy.
Patent Information
- Application Number
- CN202421001924.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-10
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-10
AI Technical Summary
During the pile foundation detection process, the heavy hammer is inconvenient to connect to the decoupler, and the decoupler is prone to lateral traction or thrust on the heavy hammer when unlocking, resulting in misalignment with the pile foundation when the heavy hammer falls, affecting the detection effect.
Design a pile foundation detection heavy hammer decourse, adopts the structure of external protective shells and mobile adjustment boards. Through the design of limited horizontal boards and limited side plates, the automatic locking and stable whereabouts of the heavy hammer will be achieved to avoid side directions. The influence of power.
The convenient connection and stable whereabouts of the heavy hammer and the describeer, reducing the dislocation with the pile foundation when the fall of the heavy hammer, and the accuracy of the detection.
Smart Images
Figure CN222413166U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of unhooking devices, and in particular relates to a pile foundation detection weight unhooking device. Background Art
[0002] The purpose of pile foundation testing is to determine the ultimate compressive strength of a single pile in the vertical direction, so as to judge whether the vertical compressive strength can meet the design requirements. The high-strain hammer system is the hammer system used in the high-strain method testing of pile foundations, which includes a heavy hammer system, a support and guide system, a decoupling system, a hanging system, a penetration test system, etc.
[0003] During pile foundation inspection, a lifting machinery is used to drive a weight to be transferred to a guide mechanism via a unhooking device, and then the unhooking device is controlled to open, allowing the weight to fall freely after the restriction is released. The weight impacts the pile foundation from top to bottom to complete the inspection. However, in actual use, the connection end of the weight needs to be hung on the unhooking device, which is inconvenient during connection, and when the weight is unlocked to release the limit of the weight, the unhooking device is likely to exert lateral traction or thrust on the weight, causing the weight to be easily misaligned with the pile foundation when falling, thereby causing a deviation in the inspection effect of the pile foundation. Utility Model Content
[0004] The utility model provides a pile foundation detection weight unhooking device, which has the characteristics of being easy to connect the unhooking device with the weight and improving the stability of the falling center when the weight is separated.
[0005] The utility model provides the following technical solutions: it includes an external protective shell, a connecting portion is provided at the top of the external protective shell, and both sides of the bottom of the external protective shell are provided with clearance gaps, and the two clearance gaps are symmetrically distributed. The inner wall of the external protective shell is slidably connected with a movable adjustment plate, and the bottom end of the movable adjustment plate is hinged with two limiting side plates, and the opposite sides of the two limiting side plates are hinged with a limiting horizontal plate for locking the heavy hammer, and the two limiting side plates are both slidably connected to the inner wall of the external protective shell, and the inner wall of the external protective shell is rotatably connected with a threaded rod for adjusting the height of the movable adjustment plate, and the threaded rod is threadedly connected to the inner wall of the movable adjustment plate, and a driving motor corresponding to the threaded rod is installed at the top of the external protective shell.
[0006] Among them, a plurality of ball bearings are rotatably connected to the inner wall of the external protective shell, and the plurality of ball bearings are slidably connected to the movable adjustment plate and the corresponding side walls of the limiting side plates, and the ball bearings are used to reduce the friction resistance coefficient between the movable adjustment plate and the limiting side plates and the inner wall of the movable adjustment plate.
[0007] Wherein, triangular reinforcement plates are fixedly connected to both sides of the external protective shell, and the triangular reinforcement plates correspond to the positions of the two clearance gaps.
[0008] Among them, two elastic telescopic rods are hinged at the bottom end of the movable adjustment plate, and the output ends of the two elastic telescopic rods are respectively hinged to the inner sides of the corresponding limiting side plates. A first torsion spring is arranged between the two limiting side plates and the movable adjustment plate, and a second torsion spring is arranged between the limiting cross plate and the corresponding limiting side plate. The first torsion spring assists the corresponding elastic telescopic rod to drive the limiting side plate to unfold.
[0009] Wherein, the two limiting side plates are fixedly connected to the opposite side with two baffles for guiding the elastic telescopic rod, and the elastic telescopic rod is slidably connected between the corresponding two baffles.
[0010] The side wall of the threaded rod is fixedly connected to a limiting ring, the limiting ring is rotatably connected to the inner wall of the external protective shell, a clearance groove is opened on the connecting part, and the driving motor is installed on the inner wall of the clearance groove.
[0011] The beneficial effects of the utility model are as follows: the two limit cross plates are squeezed and flipped by the heavy hammer and then returned to their original position and closed together, thereby completing the automatic locking of the heavy hammer and then completing the connection with the heavy hammer, the connection is simple and fast, and the work efficiency is improved; when the heavy hammer is released, the two limit side plates and the two limit cross plates are simultaneously expanded to both sides, so that the two limit side plates and the two limit cross plates will not apply excess lateral force to the heavy hammer, so that the heavy hammer is not easy to be eccentric and offset when falling, and the situation that the heavy hammer is easily misaligned with the pile foundation when falling is reduced, thereby reducing the deviation of the detection effect of the pile foundation and improving the detection accuracy.
[0012] The parts not involved in the device are the same as those in the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;
[0014] Figure 2 It is a front view cross-sectional structural schematic diagram of the utility model;
[0015] Figure 3 for Figure 2 A schematic diagram of the enlarged structure of the middle part A;
[0016] Figure 4 It is a front view structural schematic diagram of the utility model in motion state;
[0017] Figure 5 It is a front view structural schematic diagram of the utility model in motion state;
[0018] Figure 6 It is a schematic diagram of an enlarged top view of the cross-section of the limiting side plate, the elastic telescopic rod and the baffle in the utility model.
[0019] In the figure: 1. External protective shell; 11. Connecting part; 111. Make way groove; 12. Make way notch; 13. Ball; 14. Triangular reinforcement plate; 2. Movable adjustment plate; 21. Limiting side plate; 211. First torsion spring; 22. Limiting horizontal plate; 221. Second torsion spring; 23. Elastic telescopic rod; 24. Baffle; 3. Threaded rod; 31. Driving motor; 32. Limiting ring. DETAILED DESCRIPTION
[0020] See also Figure 1-Figure 6 The utility model provides the following technical solutions: it includes an external protective shell 1, a connecting portion 11 is provided at the top of the external protective shell 1, and both sides of the bottom of the external protective shell 1 are provided with clearance notches 12, and the two clearance notches 12 are symmetrically distributed. The inner wall of the external protective shell 1 is slidably connected with a movable adjustment plate 2, and the bottom end of the movable adjustment plate 2 is hinged with two limiting side plates 21, and the opposite sides of the two limiting side plates 21 are hinged with a limiting horizontal plate 22 for locking the heavy hammer, and the two limiting side plates 21 are both slidably connected to the inner wall of the external protective shell 1, and the inner wall of the external protective shell 1 is rotatably connected with a threaded rod 3 for adjusting the height of the movable adjustment plate 2, and the threaded rod 3 is threadedly connected to the inner wall of the movable adjustment plate 2, and a driving motor 31 corresponding to the threaded rod 3 is installed at the top of the external protective shell 1.
[0021] In this implementation scheme: the external protective shell 1 is connected to the traction rope of the hanging mechanism through the connecting part 11, the interior of the external protective shell 1 is a cavity structure, the movable adjustment plate 2 corresponds to the internal size of the external protective shell 1, the external protective shell 1 supports and adjusts the height position of the movable adjustment plate 2 through the threaded rod 3, the movable adjustment plate 2 supports two limiting side plates 21, and the limiting side plates 21 support the corresponding limiting transverse plates 22. When the movable adjustment plate 2 drives the two limiting side plates 21 to enter the interior of the external protective shell 1, the two limiting side plates 21 are limited by the external protective shell 1 and cannot be expanded to both sides, so that the limiting side plates 21 can drive the limiting transverse plates 22 to close together to press the heavy hammer. The locking limit is performed, and the notch 12 makes way for the connection end of the heavy hammer to prevent the external protective shell 1 from interfering with the connection between the heavy hammer and the device. The external protective shell 1 is an integral structure. Compared with the traditional unhooking device that uses an L-shaped limit rod to limit the two hooks, it is more solid and stable, avoiding the risk of the heavy hammer falling off by mistake, and improving safety. By controlling the drive motor 31 to drive the threaded rod 3 to rotate, the threaded rod 3 drives the movable adjustment plate 2 to move downward, and the movable adjustment plate 2 drives the two limit side plates 21 to slide downward, so that the limit side plates 21 are no longer in contact with the external protective shell 1, and then the external protective shell 1 releases the limit on the two limit side plates 21, so that the two limit side plates The plate 21 can be unfolded to both sides, and the heavy hammer can fall off. The limiting side plate 21 drives the corresponding limiting horizontal plate 22 to unfold. When the two limiting horizontal plates 22 are close together, the bottom space is blocked, so that the connecting end of the heavy hammer is limited above the two limiting horizontal plates 22. The two limiting horizontal plates 22 are both designed to be flippable and adjustable. When the device is connected to the heavy hammer, the moving adjustment plate 2 drives the limiting side plates 21 to enter the inside of the external protective shell 1 and close together. By controlling the external protective shell 1 to move downward, the connecting end of the heavy hammer can squeeze and flip the two limiting horizontal plates 22, and a gap appears between the two limiting horizontal plates 22. The connecting end of the heavy hammer passes over the two limiting horizontal plates 22, and then the two limiting horizontal plates 22 flip downward. The return position completes automatic locking, and then completes the connection with the heavy hammer. The connection is simple and quick, and the work efficiency is improved. When the heavy hammer is dropped, the two limiting side plates 21 drive the two limiting transverse plates 22 to expand to both sides at the same time, and the upper inclined surface between the two limiting side plates 21 contacts the connecting end of the heavy hammer, and the heavy hammer uses the inclined surface above the two limiting transverse plates 22 to slide toward the center position between the two limiting transverse plates 22. The two limiting side plates 21 and the two limiting transverse plates 22 will not apply excess lateral force to the heavy hammer, so that the heavy hammer is not easy to be eccentric and offset when falling, and the situation that the heavy hammer is easily misaligned with the pile foundation when falling is reduced, thereby reducing the deviation of the detection effect of the pile foundation and improving the detection accuracy.
[0022] A plurality of balls 13 are rotatably connected to the inner wall of the external protective shell 1, and the plurality of balls 13 are slidably connected to the movable adjustment plate 2 and the corresponding side walls of the limiting side plates 21, and the balls 13 are used to reduce the friction resistance coefficient between the movable adjustment plate 2 and the limiting side plates 21 and the inner wall of the movable adjustment plate 2; the inner wall of the external protective shell 1 contacts the movable adjustment plate 2 and the limiting side plates 21 through the plurality of balls 13, thereby reducing the sliding friction resistance between the external protective shell 1 and the movable adjustment plate 2 and the limiting side plates 21, thereby making it more convenient to adjust the position of the movable adjustment plate 2 and the limiting side plates 21, and facilitating the release of the heavy hammer.
[0023] Triangular reinforcement plates 14 are fixedly connected on both sides of the external protective shell 1, and the positions of the triangular reinforcement plates 14 correspond to the two clearance notches 12; the clearance notches 12 make way when the heavy hammer is connected to the device, and the two triangular reinforcement plates 14 reinforce the limiting force of the external protective shell 1 on both sides of the bottom of the external protective shell 1, thereby improving the vertical supporting force of the two raised side walls at the bottom of the external protective shell 1 and preventing the external protective shell 1 from bending.
[0024] Two elastic telescopic rods 23 are hinged at the bottom end of the movable adjustment plate 2, and the output ends of the two elastic telescopic rods 23 are respectively hinged to the inner sides of the corresponding limiting side plates 21. A first torsion spring 211 is arranged between the two limiting side plates 21 and the movable adjustment plate 2, and a second torsion spring 221 is arranged between the limiting cross plate 22 and the corresponding limiting side plate 21. The first torsion spring 211 assists the corresponding elastic telescopic rod 23 to drive the limiting side plate 21 to expand; when the limiting side plate 21 is out of contact with the external protective shell 1, the two elastic telescopic rods 23 are respectively hinged to the inner sides of the corresponding limiting side plates 21. The retracted rod 23 pushes the corresponding limiting side plate 21, so that the limiting side plate 21 can be flipped and unfolded to both sides, and the first torsion spring 211 assists the limiting side plate 21 to flip, so as to facilitate the detachment of the heavy hammer, and the inclined surfaces above the two limiting cross plates 22 are convenient for squeezing and falling off by the gravity of the heavy hammer itself, and the second torsion spring 221 pushes the limiting cross plate 22 downward, so that after the heavy hammer squeezes and passes over the limiting cross plate 22, the limiting cross plate 22 can automatically return to limit the heavy hammer.
[0025] The two limiting side plates 21 are fixedly connected to the opposite side with two baffles 24 for guiding the elastic telescopic rod 23, and the elastic telescopic rod 23 is slidably connected between the corresponding two baffles 24; the two baffles 24 clamp the corresponding elastic telescopic rod 23, so that the elastic telescopic rod 23 is limited by the corresponding two baffles 24, preventing the elastic telescopic rod 23 from being offset and tilted, affecting the normal flipping of the limiting side plates 21, and the baffles 24 protect the elastic telescopic rod 23 to prevent the elastic telescopic rod 23 from being disturbed by the outside.
[0026] The side wall of the threaded rod 3 is fixedly connected to a limiting ring 32, and the limiting ring 32 is rotatably connected to the inner wall of the external protective shell 1. A clearance groove 111 is opened on the connecting part 11, and the driving motor 31 is installed on the inner wall of the clearance groove 111; the external protective shell 1 limits the threaded rod 3 through the limiting ring 32, so that the position relationship between the threaded rod 3 and the external protective shell 1 remains stable, so that the threaded rod 3 can stably drive the movable adjustment plate 2 up and down, and the clearance groove 111 makes way for the driving motor 31, which is helpful for the maintenance and heat dissipation of the driving motor 31.
[0027] The working principle and use process of the utility model are as follows: when the device is connected with the heavy hammer, the external protective shell 1 is controlled to fall, and the connection end of the heavy hammer contacts and squeezes the bottom ends of the two limit cross plates 22, so that the two limit cross plates 22 can flip upward. After the two limit cross plates 22 flip, the connection end of the heavy hammer is given way, so that the heavy hammer can pass over the two limit cross plates 22 and enter between the two limit side plates 21. Then the second torsion spring 221 drives the limit cross plate 22 to flip downward, and the limit cross plate 22 flips downward and returns to its original position to complete automatic locking, thereby completing the connection with the heavy hammer. The connection is simple and fast, and the work efficiency is improved. When the heavy hammer is released, the driving motor 31 is controlled to drive the threaded rod 3 to rotate, and the threaded rod 3 drives the movable adjustment plate 2 to slide downward, and the movable adjustment plate 2 drives the two limit side plates 21 to slide downward. The plate 21 slides downward, and the limiting side plate 21 drives the limiting transverse plate 22 to move downward, and then the limiting side plate 21 is out of contact with the external protective shell 1, and the elastic telescopic rod 23 pushes the limiting side plate 21 to expand laterally, and the first torsion spring 211 assists the limiting side plate 21 to expand, and the limiting side plate 21 drives the limiting transverse plate 22 to move to both sides, and the two limiting transverse plates 22 are separated from the connecting end of the heavy hammer at the same time, and the heavy hammer uses the inclined surface above the two limiting transverse plates 22 to slide toward the center position between the two limiting transverse plates 22, and the two limiting side plates 21 and the two limiting transverse plates 22 will not apply excess lateral force to the heavy hammer, so that the heavy hammer is not easy to produce eccentricity and deviation when falling, and the situation that the heavy hammer is easily misaligned with the pile foundation when falling is reduced, thereby reducing the deviation of the detection effect of the pile foundation and improving the detection accuracy.
Claims
1. A pile foundation detection hammer unhooking device, characterized in that: The invention comprises an external protective shell (1), wherein a connecting portion (11) is provided at the top of the external protective shell (1), and both sides of the bottom of the external protective shell (1) are provided with clearance notches (12), and the two clearance notches (12) are symmetrically distributed. The inner wall of the external protective shell (1) is slidably connected with a movable adjustment plate (2), and the bottom end of the movable adjustment plate (2) is hinged with two limiting side plates (21), and the two limiting side plates (21) are hinged on opposite sides with a limiting horizontal plate (22) for locking the heavy hammer, and the two limiting side plates (21) are slidably connected to the inner wall of the external protective shell (1), and the inner wall of the external protective shell (1) is rotatably connected with a threaded rod (3) for adjusting the height of the movable adjustment plate (2), and the threaded rod (3) is threadedly connected to the inner wall of the movable adjustment plate (2), and a driving motor (31) corresponding to the threaded rod (3) is installed at the top of the external protective shell (1).
2. A pile foundation testing hammer unhooking device according to claim 1, characterized in that: The inner wall of the external protective shell (1) is rotatably connected to a plurality of balls (13), and the plurality of balls (13) are slidably connected to the movable adjustment plate (2) and the corresponding side walls of the limiting side plates (21). The balls (13) are used to reduce the friction resistance coefficient between the movable adjustment plate (2) and the limiting side plates (21) and the inner wall of the movable adjustment plate (2).
3. A pile foundation testing hammer unhooking device according to claim 1, characterized in that: Triangular reinforcement plates (14) are fixedly connected to both sides of the external protective shell (1), and the triangular reinforcement plates (14) correspond to the positions of the two clearance notches (12).
4. A pile foundation testing hammer unhooking device according to claim 1, characterized in that: Two elastic telescopic rods (23) are hinged at the bottom end of the movable adjustment plate (2), and the output ends of the two elastic telescopic rods (23) are respectively hinged to the inner sides of the corresponding limiting side plates (21). A first torsion spring (211) is arranged between the two limiting side plates (21) and the movable adjustment plate (2), and a second torsion spring (221) is arranged between the limiting transverse plate (22) and the corresponding limiting side plate (21). The first torsion spring (211) assists the corresponding elastic telescopic rod (23) in driving the limiting side plate (21) to unfold.
5. A pile foundation testing weight unhooking device according to claim 4, characterized in that: The two limiting side plates (21) are fixedly connected to the opposite side with two baffles (24) for guiding the elastic telescopic rod (23), and the elastic telescopic rod (23) is slidably connected between the corresponding two baffles (24).
6. A pile foundation testing weight unhooking device according to claim 1, characterized in that: The side wall of the threaded rod (3) is fixedly connected to a limiting ring (32), the limiting ring (32) is rotatably connected to the inner wall of the external protective shell (1), a clearance groove (111) is provided on the connecting portion (11), and the driving motor (31) is installed on the inner wall of the clearance groove (111).