A fixing structure of a load box for pile foundation self-balancing detection

Abstract

The utility model discloses a kind of fixed structure of pile foundation self-balancing detection load box, it is related to load box technical field, including load plate, multiple jackplug that is circumferentially equidistant distribution is opened in load plate, recess is opened in load plate middle, the top of load plate is provided with multiple circumferentially equidistant distribution of inclined strut component, inclined strut component includes fixed seat, fixed seat is fixed on load plate, the end of jackplug close to recess is set as U-shaped opening and U-shaped opening is rotatably connected with pin shaft, pin shaft is fixedly connected with inclined strut rod on it. Advantageous effects are that: by limiting component, the limitation to inclined strut rod is removed, and simultaneously, pushing component will push inclined strut rod, so that inclined strut rod is rotated to tilt state on fixed seat, after the tilt of inclined strut rod, it is overlapped with the annular reinforcement of reinforcement cage side face, so it can be directly welded, using inclined strut rod replaces oblique reinforcement, without manual hand holding oblique reinforcement control welding point, it is more convenient to use, and installation efficiency is higher.

Description

Technical Field

[0001] This utility model relates to the field of load cell technology, and in particular to a fixing structure for a load cell used for pile foundation self-balancing testing. Background Technology

[0002] The principle of pile foundation white balance testing is to embed a load cell along with the reinforcing cage into the pile at the appropriate location before concrete pouring. The pressure pipe of the load cell and other necessary testing equipment are led from the pile body to the ground, and then the pile is poured. A pressure pump applies pressure to the load cell from the ground, generating a loading force inside the pile. By calculating and analyzing the relationship between the loading force and these parameters, we can obtain not only the pile foundation bearing capacity but also a series of data such as the lateral resistance coefficient of each of the ten layers, the lateral resistance of the pile, and the end bearing capacity. This method can be used to provide data for pile design and can also be used to test the bearing capacity of engineering piles.

[0003] For example, patent document CN219315847U discloses a portable load box for pile foundation self-balancing testing. By setting up a limiting groove, limiting magnet, support rod, clamping groove, clamping block, bolt, locking block, slot, clamping block, fixing block, welding block, arc plate and steel cable groove, the load box, during the fixed installation of the reinforcing cage, energizes the internal electromagnet, and the limiting magnet inside the limiting groove, along with the clamping groove, clamps the reinforcing cage. The clamping block is used to install and fix the reinforcing steel.

[0004] In practice, when fixing the load cell, it is necessary not only to weld the steel bars at the end of the steel cage to the load cell, but also to weld multiple diagonal steel bars inside the steel cage in order to improve the fixing strength. Since the diagonal steel bars are welded after the load cell is welded to the steel cage, the arm and welding gun need to be inserted into the steel cage when welding the diagonal steel bars, which makes the operating space very limited and makes it difficult to control the welding point between the diagonal steel bars and the load cell, resulting in unstable welding quality, which may affect the load cell loading test. Utility Model Content

[0005] The purpose of this utility model is to provide a fixed structure for a load cell for pile foundation self-balancing detection in order to solve the above problems.

[0006] This utility model achieves the above objectives through the following technical solutions:

[0007] A fixing structure for a load cell used for self-balancing pile foundation testing includes a middle plate. Load plates are provided on both the upper and lower sides of the middle plate. Multiple circumferentially equidistant insertion holes are provided on the load plates. A groove is provided in the middle of the load plates. Multiple circumferentially equidistant diagonal bracing components are provided on the top of the load plates. Each diagonal bracing component includes a fixing seat, which is fixed to the load plates. The end of the insertion hole near the groove is set as a U-shaped opening, and a pin is rotatably connected inside the U-shaped opening. A diagonal bracing rod is fixedly connected to the pin. One end of the diagonal bracing rod is located in the groove. A limit component is provided in the groove. Multiple circumferentially equidistant jacking components are provided inside the load plates.

[0008] Preferably, the limiting component includes a limiting plate, which is slidably connected in the groove. A limiting hole is provided on the limiting plate. One end of the diagonal brace is inserted into the limiting hole. A first spring is fixedly connected to the side of the limiting plate near the middle plate, and the other end of the first spring is fixedly connected to the inner wall of the groove.

[0009] Preferably, a magnetic block is fixedly connected to the side of the limiting plate near the middle plate, and an electromagnet is fixedly connected to the inner wall of the groove.

[0010] Preferably, the load plate has multiple guide grooves distributed equidistantly in a circular pattern inside. One end of the guide groove is connected to the groove. The pushing assembly includes a push rod, which is slidably connected in the guide groove. One end of the push rod is pressed against the side of the limiting plate, and the other end of the push rod is fixedly connected to a second spring. The other end of the second spring is fixedly connected to the inner wall of the guide groove.

[0011] Preferably, a ramp block is fixedly connected to the top of the fixed base, and a second welding block with an incline is fixedly connected to the top of the ramp block.

[0012] Preferably, a first welding block is fixedly connected to the inner wall of the socket.

[0013] The beneficial effects are as follows: During the installation of the reinforcing cage, the diagonal brace remains perpendicular to the load plate under the action of the limiting component, which facilitates the welding of the reinforcing cage and the load plate. After the welding of the reinforcing cage and the load plate is completed, the limiting component can release the limiting of the diagonal brace, and at the same time the jacking component will push the diagonal brace, causing the diagonal brace to rotate to an inclined state on the fixed seat. After the diagonal brace is tilted, it overlaps with the ring-shaped reinforcing bars on the side of the reinforcing cage, so that the welding operation can be carried out directly. By using the diagonal brace to replace the inclined reinforcing bars, there is no need for manual control of the welding point by holding the inclined reinforcing bars, making it more convenient to use and more efficient in installation.

[0014] The additional technical features and advantages of this utility model will become more apparent from the following description, or may be learned through specific practice of this utility model. Attached Figure Description

[0015] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the following detailed description to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0016] Figure 1 This is a perspective view of the fixing structure of a load cell for self-balancing detection of pile foundations as described in this utility model;

[0017] Figure 2 This is a front view of the fixing structure of the load box for pile foundation self-balancing detection described in this utility model;

[0018] Figure 3 This is a top view of the fixed structure of the load cell for pile foundation self-balancing detection described in this utility model;

[0019] Figure 4 This is a perspective view of the inclined bracing assembly of the fixing structure of the load box for pile foundation self-balancing detection as described in this utility model;

[0020] Figure 5 This is a front sectional view of the load plate of the fixed structure of the load box for self-balancing detection of pile foundation described in this utility model;

[0021] Figure 6 This is a front sectional view of the inclined strut of the fixed structure of the load box for pile foundation self-balancing detection described in this utility model, showing its tilted state.

[0022] The reference numerals in the attached drawings are explained as follows: 1. Intermediate plate; 2. Load plate; 201. Insertion hole; 202. Groove; 203. Guide groove; 204. First welding block; 3. Diagonal brace assembly; 301. Fixing seat; 302. Pin; 303. Diagonal brace rod; 304. Inclined block; 305. Second welding block; 4. Limiting assembly; 401. Limiting plate; 402. Limiting hole; 403. First spring; 5. Pushing assembly; 501. Push rod; 502. Second spring; 6. Electromagnet; 7. Magnetic block. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] The present invention will be further described below with reference to the accompanying drawings:

[0026] like Figures 1-6 As shown, a fixed structure for a load cell used for pile foundation self-balancing testing includes a middle plate 1. Load plates 2 are provided on both the upper and lower sides of the middle plate 1. Multiple circumferentially equidistant insertion holes 201 are provided on the load plates 2. The insertion holes 201 are used to insert the reinforcing bars at the ends of the reinforcing cage. A first welding block 204 is fixedly connected to the inner wall of the insertion hole 201. The reinforcing bars at the ends of the reinforcing cage are welded to the first welding block 204, thereby connecting the reinforcing cage to the load plate 2. A groove 202 is provided in the middle of the load plate 2. Multiple circumferentially equidistant diagonal bracing components 3 are provided on the top of the load plate 2. Each diagonal bracing component 3 includes a fixing seat 301. The fixing seat 301 is welded to the load plate 2 to ensure the connection strength of the fixing seat 301. The end of the insertion hole 201 near the groove 202 is set as a U-shaped opening and a pin 302 is rotatably connected in the U-shaped opening. A diagonal brace 303 is fixedly connected to the pin 302. In the initial state, the diagonal brace 303 is perpendicular to the load plate 2, which facilitates the connection between the steel cage and the load plate 2. One end of the diagonal brace 303 is located in the groove 202. A limit component 4 is set in the groove 202. The limit component 4 keeps the diagonal brace 303 in the initial state. Multiple jacking components 5 with circumferentially equidistant portions are set inside the load plate 2.

[0027] The limiting component 4 includes a limiting disk 401, which is slidably connected to the groove 202. A limiting hole 402 is formed on the limiting disk 401. One end of a diagonal support rod 303 is inserted into the limiting hole 402. At this time, the diagonal support rod 303 is limited by the limiting hole 402 and cannot rotate, maintaining its initial state. A first spring 403 is fixedly connected to the side of the limiting disk 401 near the middle plate 1, and the other end of the first spring 403 is fixedly connected to the groove 202. On the inner wall of groove 202, the first spring 403 applies a pushing force to the limiting plate 401, so that the limiting plate 401 keeps the limiting rod 303 in place. A magnetic block 7 is fixedly connected to the side of the limiting plate 401 near the middle plate 1. An electromagnet 6 is fixedly connected to the inner wall of groove 202. When the electromagnet 6 is energized, it will attract the magnetic block 7. The magnetic block 7 drives the limiting plate 401 to move, so that the diagonal brace 303 is dislodged from the limiting hole 402. At this time, the limiting of the diagonal brace 303 is released.

[0028] The load plate 2 has multiple guide grooves 203 distributed circumferentially inside. One end of the guide groove 203 is connected to the groove 202. The push assembly 5 includes a push rod 501, which is slidably connected in the guide groove 203. In the initial state, one end of the push rod 501 is pressed against the side of the limiting plate 401. At this time, the push rod 501 is completely inside the guide groove 203. The other end of the push rod 501 is fixedly connected to a second spring 502, which is fixedly connected to the inner wall of the guide groove 203. The second spring 502 applies a pushing force to the push rod 501, causing the push rod 501 to press against the side of the limiting plate 401. When the limiting plate 401 moves down, the push rod 501 extends out of the guide groove 203 and presses against the inclined support rod 303. The push rod 501 pushes the inclined support rod 303 to rotate to an inclined state. After the push rod 501 extends, it will prevent the limiting plate 401 from resetting. At this time, the electromagnet 6 can be de-energized.

[0029] A ramp block 304 is welded to the top of the fixed base 301, and a second welding block 305 is welded to the top of the ramp block 304. When the ramp block 303 is tilted, it will rest on the second welding block 305. The ramp block 303 is welded to the second welding block 305, so that the ramp block 303 is fixed to the load plate 2 through the second welding block 305, the ramp block 304 and the fixed base 301. At the same time, when the ramp block 303 is tilted, the end away from the fixed base 301 will rest on the ring steel bar on the side of the steel cage. In this way, there is no need to manually control the welding point, making it more convenient to use.

[0030] Working principle: In use, the reinforcing bars at the end of the reinforcing cage are inserted into the insertion hole 201, and then the reinforcing bars are welded to the first welding block 204, thereby connecting the reinforcing cage to the load plate 2. When the electromagnet 6 is energized, the electromagnet 6 will attract the magnetic block 7. The magnetic block 7 drives the limiting plate 401 to move, causing the diagonal brace 303 to disengage from the limiting hole 402. At this time, the limiting of the diagonal brace 303 is released. After the limiting plate 401 moves down a certain distance, under the elastic force of the second spring 502, the push rod 501 extends out of the guide groove 203 and pushes the diagonal brace 303 to rotate to an inclined state. When 501 extends, it will block the limit plate 401 from resetting. At this time, the electromagnet 6 can be de-energized. After the diagonal brace 303 tilts, it will rest on the second welding block 305. Weld the diagonal brace 303 to the second welding block 305, so that the diagonal brace 303 is fixed to the load plate 2 through the second welding block 305, the inclined block 304 and the fixed seat 301. At the same time, after the diagonal brace 303 tilts, the end away from the fixed seat 301 will rest on the ring steel bar on the side of the steel cage. Weld the diagonal brace 303 to the ring steel bar. In this way, there is no need to manually control the welding point, making it more convenient to use.

[0031] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A fixing structure for a load cell for self-balancing pile foundation testing, comprising an intermediate plate (1), wherein load plates (2) are provided on both the upper and lower sides of the intermediate plate (1), characterized in that: The load plate (2) has a plurality of circumferentially equidistant insertion holes (201) and a groove (202) in the middle. The top of the load plate (2) is provided with a plurality of circumferentially equidistant diagonal bracing components (3). The diagonal bracing component (3) includes a fixing seat (301) which is fixed on the load plate (2). The end of the insertion hole (201) near the groove (202) is set as a U-shaped opening and a pin (302) is rotatably connected in the U-shaped opening. A diagonal bracing rod (303) is fixedly connected to the pin (302). One end of the diagonal bracing rod (303) is located in the groove (202). A limit component (4) is provided in the groove (202). The load plate (2) is provided with a plurality of circumferentially equidistant pushing components (5).

2. The fixing structure of the load cell for pile foundation self-balancing testing according to claim 1, characterized in that: The limiting component (4) includes a limiting plate (401), which is slidably connected in the groove (202). A limiting hole (402) is provided on the limiting plate (401). One end of the diagonal brace (303) is inserted into the limiting hole (402). A first spring (403) is fixedly connected to the side of the limiting plate (401) near the intermediate plate (1). The other end of the first spring (403) is fixedly connected to the inner wall of the groove (202).

3. The fixing structure of a load cell for pile foundation self-balancing testing according to claim 2, characterized in that: A magnetic block (7) is fixedly connected to the side of the limiting plate (401) near the middle plate (1), and an electromagnet (6) is fixedly connected to the inner wall of the groove (202).

4. The fixing structure of a load cell for pile foundation self-balancing testing according to claim 2, characterized in that: The load plate (2) has multiple guide grooves (203) that are circumferentially equidistantly distributed inside. One end of the guide groove (203) is connected to the groove (202). The push assembly (5) includes a push rod (501). The push rod (501) is slidably connected in the guide groove (203). One end of the push rod (501) is against the side of the limiting plate (401). The other end of the push rod (501) is fixedly connected to a second spring (502). The other end of the second spring (502) is fixedly connected to the inner wall of the guide groove (203).

5. The fixing structure of a load cell for pile foundation self-balancing testing according to claim 1, characterized in that: The top of the fixed base (301) is fixedly connected to an inclined block (304), and the top of the inclined block (304) is fixedly connected to an inclined second welding block (305).

6. The fixing structure of a load cell for pile foundation self-balancing testing according to claim 1, characterized in that: The inner wall of the insertion hole (201) is fixedly connected to the first welding block (204).

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