Device for detecting bearing capacity of natural foundation

Abstract

The utility model discloses a natural foundation bearing capacity detection device, which is characterized in that a mounting frame is arranged on a base, a support frame is arranged on the mounting frame, and a main power mechanism is arranged on the mounting frame; a lifting frame is arranged in a cavity of the supporting frame, the lifting frame is connected with the main power mechanism and the supporting frame at the same time and can move in the vertical direction along the supporting frame under the action of the main power mechanism, a buffering device is arranged in the cavity of the supporting frame, and a drilling and probing rod is installed on the lifting frame. The bottom end of the drill rod penetrates through the buffer device and can move in the buffer device, a slave power mechanism is arranged on the lifting frame and connected with a gravity hammer, the gravity hammer is located at the top end of the drill rod, and the slave power mechanism can drive the gravity hammer to move in the vertical direction. According to the utility model, three different modes of accurate positioning, horizontal displacement and labor-saving lifting can be provided, different light dynamic sounding detections can be met, and the authenticity of natural foundation drill rod detection data and the enthusiasm of operators are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of building construction, in particular to a natural foundation bearing capacity detection device. Background Art

[0002] In the construction field, light dynamic probing of natural foundations requires different types of drill rods due to different geological environments. The verticality and equipment stability of traditional drill rods are difficult to control, resulting in bending or damage of the drill rods, and the collected test data is not true, which reduces construction efficiency.

[0003] The foundation bearing capacity detection device is a detection device that hammers the probe rod at a uniform speed, at the same height, vertically, and horizontally in a uniform and continuous operation mode. With the development of science and technology and production, light dynamic probing of natural foundations is constantly being improved and developed. Traditional construction technology or construction equipment is backward in technology and has no reliable data support. Modernization requires more advanced equipment to improve work efficiency and performance, making operations simpler, more labor-saving, safer and more reliable.

[0004] Traditional light dynamic penetration testing usually uses manual support and another person to lift the gravity hammer. Due to the influence of verticality and operator fatigue, the traditional process has a low reference value for the collected parameter data and is easy to mislead the test report conclusions. Utility Model Content

[0005] The purpose of the present utility model is to overcome the problems raised in the above-mentioned background technology and provide a natural foundation bearing capacity detection device, which can provide three different modes of precise positioning, horizontal displacement, and labor-saving lifting, and can better meet different light dynamic probing detection needs, thereby improving the authenticity of natural foundation drilling data and the enthusiasm of operators.

[0006] The purpose of this utility model is mainly achieved through the following technical solutions:

[0007] A natural foundation bearing capacity detection device comprises a base, a mounting frame provided on the base, a support frame provided on the mounting frame, and the support frame and the mounting frame are vertically fixed, a main power mechanism provided on the mounting frame, a lifting frame provided in the cavity of the support frame, and the lifting frame is connected to both the main power mechanism and the support frame and can move vertically along the support frame under the action of the main power mechanism, a buffer device provided in the cavity of the support frame, and the buffer device is located below the lifting frame, a drill rod is installed on the lifting frame, the bottom end of the drill rod passes through the buffer device and can move within the buffer device, a slave power mechanism provided on the lifting frame, the slave power mechanism is connected to a gravity hammer, the gravity hammer is located at the top end of the drill rod, and the slave power mechanism can drive the gravity hammer to move vertically. In the field of construction, light dynamic probing of natural foundations requires different types of drill rods due to different geological environments. The drill rods of traditional devices are difficult to control due to verticality and equipment stability, which causes the drill rods to bend or damage, and the collected test data is not true, thereby reducing construction efficiency. Traditional light dynamic probing tests usually use manual support and another person to lift the gravity hammer. Due to the influence of verticality and operator fatigue, the traditional process has a low reference value for the parameter data collected, which can easily mislead the conclusions of the test report. In order to solve the above problems, this solution designs a natural foundation bearing capacity detection device, including a base, a mounting frame is provided on the base, the mounting frame is sleeved on the raised slide rail of the base, and is moved to the corresponding position as needed, and then the mounting frame is locked on the base to form a fixed position. This structure can be adjusted horizontally as needed, a support frame is provided on the mounting frame, and the support frame and the mounting frame are fixed vertically, the support frame is vertically fixed on the mounting frame, and can move with the mounting frame, a main power mechanism is provided on the mounting frame, and a lifting frame is provided in the cavity of the support frame. The lifting frame is connected to the main power mechanism and the support frame at the same time and can move vertically along the support frame under the action of the main power mechanism. The lifting frame is driven by the main power mechanism to move up and down as a whole. A buffer device is provided in the cavity of the support frame, and the buffer device is located below the lifting frame. A drill probe rod is installed on the lifting frame. The bottom end of the drill probe rod passes through the buffer device and can move in the buffer device. A slave power mechanism is provided on the lifting frame. The slave power mechanism is connected to a gravity hammer. The gravity hammer is located at the top end of the drill probe rod. The slave power mechanism can drive the gravity hammer to move in the vertical direction. When the main power mechanism is started, it drives the lifting frame to move in the upward vertical direction. When the main power mechanism is turned off, the lifting frame moves down under the action of gravity. The same principle applies to the gravity hammer. It moves up when the power mechanism is turned on and falls down under the action of gravity when the power mechanism is turned off, colliding with the top of the drill rod, so that the drill rod hits the foundation. The buffer device prevents the wire rope from suddenly breaking and causing damage to the equipment. This solution provides three different methods: precise positioning, horizontal displacement, and labor-saving lifting, to better meet different light dynamic sounding tests, improve the authenticity of natural foundation sounding data and the enthusiasm of operators.

[0008] Furthermore, support plates are installed on the side walls of the support frame, and the two ends of the support plates are fixed to the side walls of the support frame and the mounting frame respectively. The support plates provide lateral support for the support frame to increase its stability. Depending on the situation, the support plates can be set to multiple pieces and multiple points for support, thereby making it more stable.

[0009] Furthermore, the lifting frame includes a frame body, with rollers mounted on the top of the frame body and the top of the inner cavity of the support frame. A steel wire rope connected to the main power mechanism passes through the rollers in sequence and is fixed to the last roller; the secondary power mechanism is fixed to the frame body. Multiple rollers are staggered and installed on the top of the frame body and the top of the inner cavity of the support frame, and the steel wire rope passes through all the rollers in sequence and is fixed to the last roller. The other end of the steel wire rope is fixed to the main power mechanism. This makes lifting more labor-saving. The top end of the drill probe needs to be inserted into the frame body and can be moved vertically within the frame.

[0010] Furthermore, guide bars are installed on the inner sidewalls of the support frame, and the sidewalls of the frame are recessed to form guide grooves. The guide bars are inserted into the corresponding guide grooves, allowing the frame to move vertically along the guide bars. The combination of the guide bars and guide grooves defines the movement trajectory of the frame, while also making the frame more secure and preventing lateral shaking, thereby making movement more precise.

[0011] Furthermore, the buffer device comprises an anti-falling beam, the side wall of the anti-falling beam is connected to a guide bar and can move vertically along the guide bar, a spring is provided between the inner cavity bottom surface of the support frame and the bottom surface of the anti-falling beam, and the spring is fixed to the inner cavity bottom surface of the support frame and the bottom surface of the anti-falling beam at the same time. By arranging the anti-falling beam, a protective effect can be played when a sudden fall occurs, buffering is achieved by the spring, and the connection of the anti-falling beam and the guide bar is utilized to limit a movement trajectory in extreme cases, so that the center of gravity of the entire device is stable, the bottom end of the drill probe rod passes through the anti-falling beam and the support frame, and can move in the anti-falling beam and the support frame, without affecting the work of the drill probe rod.

[0012] In summary, compared with the existing technology, the utility model has the following beneficial effects: the utility model can provide three different modes of precise positioning, horizontal displacement, and labor-saving lifting, which can better meet the needs of different light dynamic probing tests, improve the authenticity of natural foundation drilling data and the enthusiasm of operators. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings described herein are used to provide a further understanding of the embodiments of the present invention, constitute a part of this application, and do not constitute a limitation of the embodiments of the present invention. In the accompanying drawings:

[0014] Figure 1 It is the main view of the present utility model.

[0015] Figure 2 It is a structural diagram of the present utility model.

[0016] Figure 3 This is a schematic diagram of the assembly of the lifting frame of the present invention.

[0017] Figure 4 This is a schematic diagram of the assembly of the buffer device of the present invention.

[0018] The names corresponding to the reference numerals in the accompanying drawings are:

[0019] 1-base, 2-mounting frame, 3-support frame, 4-lifting frame, 5-support plate, 6-wire rope, 7-frame, 8-guide bar, 9-spring, 10-anti-fall beam, 11-drill probe rod, 12-roller, 13-slave power mechanism, 14-main power mechanism. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0021] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0022] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0023] like Figures 1 to 4As shown, a natural foundation bearing capacity detection device of this embodiment includes a base 1. The base 1 adopts parallel steel rails, and the steel rails are fixed to form an integral structure to ensure overall stability. A mounting frame 2 is provided on the base 1. The mounting frame 2 is sleeved on the steel rails and can move on the steel rails. After moving to the appropriate position, screws are inserted through the reserved holes to lock it, thereby forming a fixation. A support frame 3 is provided on the mounting frame 2, and the support frame 3 and the mounting frame 2 are vertically fixed. The support frame 3 is vertically fixed on the mounting frame 2 and can move with the mounting frame 2. The side walls of the support frame 3 are installed with support plates 5, and the two ends of the support plates 5 are respectively fixed to the side walls of the support frame 3 and the mounting frame 2. The support frame 3 is laterally supported by the support plates 5 to increase its stability. The support plates 5 can be set to multiple blocks and multiple points of support according to the situation, thereby making it more stable.

[0024] The cam 14 is connected to the upper and lower frames 3 by a belt, and the upper and lower frames 3 are connected to each other by a belt, so that the cam 14 can move vertically along the upper and lower frames 3 under the action of the main power mechanism 14. Moreover, the first roller 12 through which the steel wire rope 6 drawn out from the main power mechanism 14 passes is a universal wheel, which can adapt to the angle of the steel wire rope 6, thereby making the lifting smoother.

[0025] A buffer device is provided in the cavity of the support frame 3, and the buffer device is located below the lifting frame 4. A drill probe rod 11 is installed on the lifting frame 4. The top end of the drill probe rod 11 is inserted into the frame body 7 and can move vertically in the frame body 7. The bottom end of the drill probe rod 11 passes through the buffer device and can move in the buffer device. A slave power mechanism 13 is provided on the lifting frame 4. The slave power mechanism 13 is fixed to the frame body 7. The slave power mechanism 13 also adopts a synchronous motor. The slave power mechanism 13 is connected to a gravity hammer. The gravity hammer is located at the top end of the drill probe rod 11, and the slave power mechanism 13 can drive the gravity hammer to move in the vertical direction. When the main power mechanism 14 is started, it drives the lifting frame 4 to move in the upward vertical direction. When the main power mechanism 14 is turned off, the lifting frame 4 moves down under the action of gravity. The same principle applies to the gravity hammer. It moves up when the power mechanism 13 is turned on and falls down under the action of gravity when the power mechanism 13 is turned off, colliding with the top of the drill rod 11, so that the drill rod 11 hits the foundation. The buffer device prevents the wire rope from breaking suddenly and causing damage to the equipment. This solution provides three different methods: precise positioning, horizontal displacement, and labor-saving lifting, which can better meet different light dynamic sounding tests and improve the authenticity of natural foundation sounding data and the enthusiasm of operators.

[0026] Guide bars 8 are installed on the inner sidewalls of the support frame 3. The sidewalls of the frame body 7 are recessed to form guide grooves. The guide bars 8 are inserted into the corresponding guide grooves, and the frame body 7 can move vertically along the guide bars 8. The combination of the guide bars 8 and the guide grooves defines the movement trajectory of the frame body 7, making the frame body 7 more secure and preventing lateral shaking, thereby making the movement more precise.

[0027] Buffer device comprises anti-fall beam 10, the side wall of anti-fall beam 10 is connected with guide bar 8 and can move vertically along guide bar 8, is provided with spring 9 between the inner cavity bottom surface of support frame 3 and the bottom surface of anti-fall beam 10, and spring 9 is fixed with the inner cavity bottom surface of support frame 3 and the bottom surface of anti-fall beam 10 simultaneously.The bottom end of drill probe rod 11 passes through anti-fall beam 10 and support frame 3, and can move in anti-fall beam 10 and support frame 3, does not affect the work of drill probe rod.By arranging anti-fall beam 10, can play a protective role when falling suddenly occurs, realize buffering by spring 9, and utilize the connection of anti-fall beam 10 and guide bar 8, limit moving track in extreme cases, make whole device center of gravity stable.

[0028] The anti-fall beam 10 slides freely within its displacement through its own guide groove and guide bar 8, preventing the lifting frame from falling due to fatigue. The anti-fall beam 10 transmits the upward load downward, and the two sets of springs 9 act as a buffer and protection in the anti-fall device. By rotating the slave power mechanism 13, the gravity hammer drives the impact drill rod downward, ensuring reliable operation and improving construction efficiency.

[0029] The gravity hammer is made of semi-C-shaped steel material and is arranged directly above the drill rod 11 of the lifting frame 4. It can slide vertically in the channel steel when driven by the power mechanism 13. This device relies on the gravitational potential energy of the gravity hammer to hit the drill rod, so that the drill rod can be quickly driven into the foundation soil layer, effectively controlling the striking depth and number of hammering of the drill rod.

[0030] A steering bearing is welded to one end of the base of the main power mechanism 14, so that the main power mechanism 14 can rotate at 0° to 60° in the vertical plane. A φ12 round steel pin matching the steering limit pile is passed under one end to change the rotation angle of the base to realize the wire rope stretching lifting frame, effectively utilizing the labor-saving principle of the pulley group and improving the enthusiasm of the operators.

[0031] This solution improves construction efficiency, is simple to operate, and offers high flexibility, allowing for labor-saving testing of natural foundation bearing capacity. It can more effectively control the impact depth and number of blows of the drill probe, making the measured records of natural foundations more accurate and effective, thereby improving construction efficiency and worker motivation.

[0032] A natural foundation bearing capacity detection device of the present embodiment adopts universal wheels, directional wheels, motors and the like to work together to make the whole set of lifting devices rotate in an interlocking manner, and smoothly complete the lifting or lowering work of the lifting frame vertically. The lower part of the anti-falling guide beam is assembled with two sets of spring steel plates and springs to form an anti-falling buffer device, which prevents the upper lifting frame from falling and damaging the entire device, and also effectively improves the safety measures of the device. A guide drill hole is set at the lower part of the lifting frame, which is conducive to the installation, disassembly and extension of the drill rod. An anti-falling guide beam is independently set at the lower part of the lifting frame, wherein a guide drill hole is set on the anti-falling guide beam, and is vertically aligned with the position of the guide drill hole of the upper lifting frame, so that the drill rod is in a vertical state, perpendicular to the lower horizontal rectangular tube, effectively controlling the striking depth and number of hammering of the drill rod, so that it can more effectively make the natural foundation measured record more real and effective.

[0033] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0034] Although the 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 variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A natural foundation bearing capacity detection device, characterized by: The invention comprises a base (1), a mounting frame (2) is provided on the base (1), a support frame (3) is provided on the mounting frame (2), and the support frame (3) and the mounting frame (2) are vertically fixed, and a main power mechanism (14) is provided on the mounting frame (2); a lifting frame (4) is provided in the cavity of the support frame (3), and the lifting frame (4) is connected to the main power mechanism (14) and the support frame (3) at the same time and can be vertically moved along the support frame (3) under the action of the main power mechanism (14). The lifting frame (4) is provided with a buffer device in the cavity of the supporting frame (3), and the buffer device is located below the lifting frame (4). The lifting frame (4) is provided with a drill probe rod (11), the bottom end of the drill probe rod (11) passes through the buffer device and can move in the buffer device. The lifting frame (4) is provided with a slave power mechanism (13), the slave power mechanism (13) is connected with a gravity hammer, the gravity hammer is located at the top end of the drill probe rod (11), and the slave power mechanism (13) can drive the gravity hammer to move in the vertical direction.

2. A natural foundation bearing capacity detection device according to claim 1, characterized in that: A support plate (5) is installed on the side wall of the support frame (3), and two ends of the support plate (5) are respectively fixed to the side wall of the support frame (3) and the mounting frame (2).

3. A natural foundation bearing capacity detection device according to claim 1, characterized in that: The lifting frame (4) includes a frame body (7), and rollers (12) are installed on the top of the frame body (7) and the top of the inner cavity of the support frame (3). The steel wire rope (6) connected to the main power mechanism (14) passes through the rollers (12) in sequence and is fixed to the last roller (12); the slave power mechanism (13) is fixed on the frame body (7).

4. A natural foundation bearing capacity detection device according to claim 3, characterized in that: The top end of the probe rod (11) is inserted into the frame (7) and can move vertically in the frame (7).

5. The natural foundation bearing capacity detection device according to claim 3, characterized in that: The inner cavity side wall of the support frame (3) is installed with a guide bar (8), the side wall of the frame body (7) is concave to form a guide groove, and the guide bar (8) is inserted into the corresponding guide groove, so that the frame body (7) can move vertically along the guide bar (8).

6. A natural foundation bearing capacity detection device according to claim 5, characterized in that: The buffer device comprises an anti-falling beam (10), the side wall of the anti-falling beam (10) is connected to a guide bar (8) and can move vertically along the guide bar (8), a spring (9) is provided between the bottom surface of the inner cavity of the support frame (3) and the bottom surface of the anti-falling beam (10), and the spring (9) is fixed to the bottom surface of the inner cavity of the support frame (3) and the bottom surface of the anti-falling beam (10) at the same time.

7. A natural foundation bearing capacity detection device according to claim 6, characterized in that: The bottom end of the drill probe rod (11) passes through the anti-fall beam (10) and the support frame (3), and is capable of moving in the anti-fall beam (10) and the support frame (3).

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