Foundation bearing capacity detection device

Abstract

The invention discloses a foundation bearing capacity detection device, and belongs to the technical field of constructional engineering, the foundation bearing capacity detection device comprises a base, a hammering assembly used for hammering, a detection assembly used for detecting foundation bearing and an electronic counter, the top of the base is fixedly connected with a vertical plate, and the top of the top plate is provided with a driving assembly; the hammering assembly is arranged on the vertical plate, the detection assembly is arranged on the vertical plate, and a connecting assembly is arranged between the hammering assembly and the detection assembly; through the action of the driving assembly, ascending or descending of the hammering assembly is controlled, through cooperative use of the hammering assembly and the detection assembly, the bearing capacity of a foundation is detected, impact force is converted into an electric signal, and the corresponding hammering frequency is recorded through the action of the electronic counter; therefore, the possible problems of missing recording, wrong recording and the like are avoided, the recording accuracy and reliability of the number of hammering times are improved, and a powerful guarantee is provided for accurate detection of the bearing capacity of the foundation.

Description

Technical Field

[0001] The invention belongs to the technical field of construction engineering, and in particular relates to a foundation bearing capacity detection device. Background Art

[0002] The foundation of large buildings, storage tanks and other high-quality structures needs to be tested for bearing capacity. Generally, a dynamic penetration test is performed on the ground. The test requires a heavy hammer to hit the standard penetration rod by free fall, repeatedly hammering until the standard penetration rod is inserted into the ground. The bearing capacity of the soil is confirmed based on the number of hammer strikes N.

[0003] However, the traditional method of manually recording the number of hammer blows is prone to omissions due to excessive times and complex on-site conditions, resulting in inaccurate experimental results. To solve this problem, a dynamic exploration test technology with automatic recording is designed and studied, which can effectively solve the problem of easy errors in manually recording the number of hammer blows.

[0004] Currently, no effective solution has been proposed for the problems in the related technologies. Summary of the invention

[0005] In view of the above-mentioned deficiencies in the prior art, an object of the present invention is to provide a foundation bearing capacity detection device, aiming to solve the problem of omissions due to excessive times and complex on-site conditions.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A foundation bearing capacity detection device comprises a base, a hammering assembly for hammering, a detection assembly for detecting foundation bearing capacity and an electronic counter, wherein the top of the base is fixedly connected to a vertical plate, the top of the vertical plate is fixedly connected to a top plate, a driving assembly is arranged on the top of the top plate, the hammering assembly is arranged on the vertical plate, the detection assembly is arranged on the vertical plate, the hammering assembly is located directly above the detection assembly, the detection assembly is located directly above the base, the driving assembly is located above the hammering assembly, the electronic counter is located between the base and the top plate, a connecting assembly is arranged between the hammering assembly and the detection assembly, the top of the base is fixedly connected to a support rod, and the top of the support rod is fixedly connected to the bottom of the top plate.

[0008] Preferably, the detection assembly includes a pressure plate, the bottom of the pressure plate is fixedly connected to a sleeve rod, the bottom of the sleeve rod is slidably connected to a penetration rod, the top center of the penetration rod is fixedly connected to a pressure rod, the inner top wall of the sleeve rod is fixedly connected to a pressure sensor, the pressure sensor is electrically connected to an electronic counter, the bottom of the pressure sensor is fixedly connected to a gasket, the inner top wall of the sleeve rod is fixedly connected to a spring, the bottom of the spring is fixedly connected to the top of the penetration rod, and the impact force is converted into an electrical signal.

[0009] Preferably, a groove is provided on the top of the pressure plate, and a buffer pad is fixedly connected to the pressure plate through the groove to mitigate instantaneous impact force on the pressure plate.

[0010] Preferably, the outer wall of the pressure plate is detachably connected to a lifting block, and the lifting block is slidably connected to the vertical plate. The internal thread of the lifting block passes through a pressure sensor, and the pressure sensor is threadedly connected to the pressure plate to fix the pressure plate and the lifting block together, and enable the lifting block to move vertically up and down.

[0011] Preferably, the connecting assembly includes a lower ear plate fixedly connected to the top of the pressure plate, a double-hook rope is fitted inside the lower ear plate, and an upper ear plate is fitted on the top of the double-hook rope to facilitate the standard penetration rod to move upward to separate from the ground.

[0012] Preferably, the hammering assembly includes a lifting plate, the outer wall of the lifting plate is fixedly connected with a slider, the slider is slidably connected to the vertical plate, the upper ear plate is fixedly connected to the bottom of the lifting plate, the interior of the lifting plate is fixedly connected with a counterweight block, and the bottom of the counterweight block is fixedly connected with a hammer rod to apply impact force to the pressure plate.

[0013] Preferably, the driving assembly includes a forward and reverse motor fixedly mounted on the top of the top plate, the output end of the forward and reverse motor is fixedly connected to a shaft, the outer wall of the shaft is fixedly connected to a winding disk, the outer wall of the winding disk is fixedly connected to a lifting rope, and the lifting rope is wound on the winding disk, and one end of the lifting rope away from the winding disk is fixedly mounted on the top of the lifting plate to facilitate the rising and falling of the lifting plate.

[0014] To sum up, the technical effects and advantages of the present invention are as follows: the foundation bearing capacity detection device controls the rise or fall of the hammering assembly through the action of the driving assembly, detects the bearing capacity of the foundation through the coordinated use of the hammering assembly and the detection assembly, and converts the impact force into an electrical signal, and then records the corresponding number of hammerings through the action of an electronic counter, thereby avoiding possible omissions, misrecording and other problems, improving the accuracy and reliability of the hammering number recording, and further providing a strong guarantee for the accurate detection of the foundation bearing capacity.

[0015] The spring provides an initial buffer to the standard penetration rod to prevent it from moving quickly, and the gasket reduces the instantaneous pressure between the pressure rod and the pressure sensor, thereby preventing the pressure sensor from being damaged by the instantaneous pressure.

[0016] Through the operation of the forward and reverse motors, the shaft rod drives the winding disk to rotate, which is convenient for the winding or unwinding of the lifting rope. Through the coordinated use of the lower ear plate, double hook rope and upper ear plate, the hammering assembly drives the detection assembly to move, thereby adjusting the height of the standard penetration rod, making it convenient for the standard penetration rod to move upward until it is separated from the ground. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0018] Figure 2 It is a schematic diagram of the hammering assembly and its related structures of the present invention;

[0019] Figure 3 It is a schematic diagram of the detection component of the present invention and its related structures;

[0020] Figure 4 It is a schematic diagram of the pressure sensor of the present invention and its related structures;

[0021] Figure 5 It is a schematic diagram of the connection assembly and its related structures of the present invention.

[0022] In the figure: 1, base; 2, vertical plate; 3, top plate;

[0023] 4. Driving assembly; 41. Forward and reverse motors; 42. Shaft; 43. Winding disc; 44. Lifting rope;

[0024] 5. hammering assembly; 51. lifting plate; 52. counterweight; 53. hammer rod; 54. slide block;

[0025] 6. Detection assembly; 61. Pressure plate; 62. Groove; 63. Buffer pad; 64. Sleeve rod; 65. Standard penetration rod; 66. Pressure rod; 67. Pressure sensor; 68. Gasket; 69. Spring; 610. Lifting block;

[0026] 7. Electronic counter; 8. Support rod;

[0027] 9. Connecting assembly; 91. Lower ear plate; 92. Double hook rope; 93. Upper ear plate. DETAILED DESCRIPTION

[0028] The present invention provides a foundation bearing capacity detection device. In order to make the purpose, technical solution and effect of the present invention clearer and more specific, the present invention is further described in detail with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the scope of protection of the present invention.

[0029] Reference Figure 1-4A foundation bearing capacity detection device comprises a base 1, a hammering assembly 5 for hammering, a detection assembly 6 for detecting foundation bearing capacity, and an electronic counter 7. The model of the electronic counter 7 is an HCC600 series intelligent counter. The hammering assembly 5 and the detection assembly 6 are both located on the vertical central axis of the base 1. A vertical plate 2 is fixedly connected to the top of the base 1. Two vertical plates 2 are provided. The two vertical plates 2 are symmetrically distributed with the central axis of the base 1 as the center. The electronic counter 7 is fixedly arranged on one of the vertical plates 2. A top plate 3 is fixedly connected to the top of the vertical plate 2. A driving assembly 4 is provided on the top of the top plate 3. The driving assembly 4 facilitates the lifting and lowering of the hammering assembly 5. The hammering assembly 5 is arranged on the vertical plate 2. The detection assembly 6 is arranged on the vertical plate 2. The hammering assembly 5 is located directly above the detection assembly 6. The driving assembly 4, the hammering assembly 5, and the detection assembly 6 are arranged on the vertical plate 2. Components 6 are arranged in sequence from top to bottom, the detection component 6 is located just above the base 1, the drive component 4 is located above the hammering component 5, the electronic counter 7 is located between the base 1 and the top plate 3, and a connecting component 9 is arranged between the hammering component 5 and the detection component 6, the connecting component 9 facilitates the connection between the hammering component 5 and the detection component 6, the top of the base 1 is fixedly connected with a strut 8, four struts 8 are arranged, and the four struts 8 are evenly distributed at the four corners of the top of the base 1, the top of the strut 8 is fixedly connected to the bottom of the top plate 3, the drive component 4 drives the hammering component 5 to move up and down, so as to facilitate the application of impact force to the detection component 6, and facilitate the detection component 6 to detect the foundation, and then the corresponding number of hammering is recorded by the electronic counter 7, so as to avoid possible omissions, wrong recordings and other problems, and improve the accuracy and reliability of the recording of the number of hammering.

[0030] Reference Figure 1-4The detection assembly 6 includes a pressure plate 61, a sleeve rod 64 is fixedly connected to the bottom of the pressure plate 61, and the sleeve rod 64 is located directly below the base 1. The bottom of the sleeve rod 64 is slidably connected to a standard penetration rod 65, and a pressure rod 66 is fixedly connected to the top center of the standard penetration rod 65. The inner circumference of the sleeve rod 64 is equal to the outer circumference of the top of the standard penetration rod 65. The inner top wall of the sleeve rod 64 is fixedly connected to a pressure sensor 67. The model of the pressure sensor 67 is BLT-660 vibrating wire soil pressure gauge. The pressure sensor 67 is electrically connected to the electronic counter 7. When the pressure sensor 67 is subjected to impact force, the pressure sensor 67 sends a signal to the electronic counter 7, and the electronic counter 7 receives the signal and performs Corresponding counting, wherein the circuit connection mode of the pressure sensor 67 and the electronic counter 7 can be reasonably set according to actual conditions, and the specific signal transmission is the existing technology, the bottom of the pressure sensor 67 is fixedly connected with a gasket 68, the gasket 68 is mainly made of rubber material, has a certain elasticity, and reduces the impact between the pressure sensor 67 and the pressure rod 66, the inner top wall of the sleeve rod 64 is fixedly connected with a spring 69, the bottom of the spring 69 is fixedly connected to the top of the standard penetration rod 65, the spring 69 buffers and supports the standard penetration rod 65, after the pressure rod 66 moves to and impacts the gasket 68, the pressure sensor 67 is subjected to the impact force, and the electronic counter 7 records the number of hammer strikes accordingly.

[0031] Reference Figure 2-3 A groove 62 is provided at the top of the pressure plate 61, and the groove 62 is located at the top center of the pressure plate 61. The inner wall of the groove 62 is adapted to the bottom outer wall of the hammer rod 53. The pressure plate 61 is fixedly connected with a buffer pad 63 through the groove 62. The buffer pad 63 is mainly made of rubber material and has a certain elasticity. The groove 62 and the buffer pad 63 facilitate the hammer rod 53 to hammer the pressure plate 61.

[0032] Reference Figure 1 and Figure 3 The outer wall of the pressure plate 61 is detachably connected with a lifting block 610, and the lifting block 610 is slidably connected to the vertical plate 2. The number of lifting blocks 610 and the vertical plate 2 is equal and corresponds one to one. The internal thread of the lifting block 610 is penetrated by a pressure sensor 67, and the pressure sensor 67 is threadedly connected to the pressure plate 61. After the pressure plate 61 moves to contact the lifting block 610, the pressure sensor 67 is threadedly penetrated by the lifting block 610 and then connected to the pressure plate 61, so that the pressure plate 61 is installed on the adjacent side of the two lifting blocks 610.

[0033] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4The connecting component 9 includes a lower ear plate 91 fixedly connected to the top of the pressure plate 61, a double hook rope 92 is fitted inside the lower ear plate 91, and an upper ear plate 93 is fitted on the top of the double hook rope 92. When the hammering component 5 impacts the detection component 6, the connecting component 9 no longer connects the hammering component 5 and the detection component 6. After the hammering component 5 and the detection component 6 are connected through the lower ear plate 91, the double hook rope 92 and the upper ear plate 93, the hammering component 5 drives the pressure plate 61 to move during its upward movement, so that the standard penetration rod 65 moves to be separated from the ground.

[0034] Reference Figure 2 The hammering assembly 5 includes a lifting plate 51, and a slider 54 is fixedly connected to the outer wall of the lifting plate 51. The slider 54 is slidably connected to the vertical plate 2. The number of sliders 54 and the vertical plate 2 is equal and one-to-one corresponding. The upper ear plate 93 is fixedly connected to the bottom of the lifting plate 51. The inside of the lifting plate 51 is fixedly connected to a counterweight block 52. The bottom of the counterweight block 52 is fixedly connected to a hammer rod 53. The hammer rod 53 is located at the bottom center of the lifting plate 51. The hammer rod 53 is adapted to the groove 62. The hammer rod 53 applies impact force to the pressure plate 61 through the groove 62.

[0035] Reference Figure 2 The driving assembly 4 includes a forward and reverse motor 41 fixedly mounted on the top of the top plate 3. The model of the forward and reverse motor 41 is 28BYJ-48. The output end of the forward and reverse motor 41 is fixedly connected to a shaft 42. The outer wall of the shaft 42 is fixedly connected to a winding disk 43. The shaft 42 and the winding disk 43 are coaxial. The outer wall of the winding disk 43 is fixedly connected to a lifting rope 44, and the lifting rope 44 is wound around the winding disk 43. One end of the lifting rope 44 away from the winding disk 43 is fixedly mounted on the top of the lifting plate 51. After the forward and reverse motor 41 is running, the shaft 42 drives the winding disk 43 to rotate, thereby facilitating the winding or unwinding of the lifting rope 44, and then facilitating the lifting plate 51 to move upward or downward.

[0036] Working principle: first, the pressure plate 61 is moved to be connected with the lifting block 610, and the pressure sensor 67 is threaded through the lifting block 610 and then connected with the pressure plate 61, so that the pressure plate 61 and the lifting block 610 are installed together. After the forward and reverse motor 41 is running, the shaft rod 42 drives the winding disk 43 to rotate, the lifting rope 44 is quickly unwound, and the counterweight block 52 increases the overall mass of the lifting plate 51. The lifting plate 51 drives the hammer rod 53 to move downward quickly, and the hammer rod 53 hammers on the pressure plate 61 through the groove 62 and the buffer pad 63, the sleeve rod 64 moves downward, the spring 69 is compressed and deformed, and the standard penetration rod 65 is inserted into the foundation under the downward impact force. In the process of the sleeve rod 64 moving downward, the top of the pressure rod 66 contacts the pressure sensor 67 through the gasket 68. The pressure sensor 67 is subjected to the impact force and converts it into an electrical signal, sending a counting signal to the electronic counter 7. The electronic counter 7 records the number of hammer strikes accordingly. When the lifting rope 44 is wound up, the distance between the lifting plate 51 and the pressure plate 61 is adjusted. The pressure plate 61 and the lifting plate 51 are connected by the cooperation of the lower ear plate 91, the double hook rope 92 and the upper ear plate 93, so that when the lifting plate 51 moves upward, the pressure plate 61 moves upward accordingly, thereby facilitating the upward movement of the standard penetration rod 65.

[0037] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0038] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0039] It is understandable that those skilled in the art can make equivalent substitutions or changes based on the technical solution and inventive concept of the present invention, and all these changes or substitutions should fall within the protection scope of the present invention.

Claims

1. A foundation bearing capacity detection device, characterized in that: The invention comprises a base (1), a hammering assembly (5) for hammering, a detection assembly (6) for detecting the bearing capacity of a foundation, and an electronic counter (7); the top of the base (1) is fixedly connected to a vertical plate (2); the top of the vertical plate (2) is fixedly connected to a top plate (3); the top of the top plate (3) is provided with a driving assembly (4); the hammering assembly (5) is arranged on the vertical plate (2); the detection assembly (6) is arranged on the vertical plate (2); the hammering assembly (5) is located directly above the detection assembly (6); the detection assembly (6) is located directly above the base (1); the driving assembly (4) is located above the hammering assembly (5); the electronic counter (7) is located between the base (1) and the top plate (3); a connecting assembly (9) is arranged between the hammering assembly (5) and the detection assembly (6); the top of the base (1) is fixedly connected to a support rod (8); the top of the support rod (8) is fixedly connected to the bottom of the top plate (3).

2. A foundation bearing capacity detection device according to claim 1, characterized in that: The detection assembly (6) comprises a pressure plate (61), the bottom of the pressure plate (61) is fixedly connected to a sleeve rod (64), the bottom of the sleeve rod (64) is slidably connected to a penetration rod (65), the top center of the penetration rod (65) is fixedly connected to a pressure rod (66), the inner top wall of the sleeve rod (64) is fixedly connected to a pressure sensor (67), the pressure sensor (67) is electrically connected to an electronic counter (7), the bottom of the pressure sensor (67) is fixedly connected to a gasket (68), the inner top wall of the sleeve rod (64) is fixedly connected to a spring (69), and the bottom of the spring (69) is fixedly connected to the top of the penetration rod (65).

3. A foundation bearing capacity detection device according to claim 2, characterized in that: A groove (62) is provided on the top of the pressure-bearing plate (61), and a buffer pad (63) is fixedly connected to the pressure-bearing plate (61) via the groove (62).

4. A foundation bearing capacity detection device according to claim 2, characterized in that: The outer wall of the pressure-bearing plate (61) is detachably connected to a lifting block (610), and the lifting block (610) is slidably connected to the vertical plate (2). The internal thread of the lifting block (610) is penetrated by a pressure sensor (67), and the pressure sensor (67) is threadedly connected to the pressure-bearing plate (61).

5. A foundation bearing capacity detection device according to claim 2, characterized in that: The connection assembly (9) comprises a lower ear plate (91) fixedly connected to the top of the pressure plate (61), a double-hook rope (92) is attached to the interior of the lower ear plate (91), and an upper ear plate (93) is attached to the top of the double-hook rope (92).

6. A foundation bearing capacity detection device according to claim 5, characterized in that: The hammering assembly (5) comprises a lifting plate (51), the outer side wall of the lifting plate (51) is fixedly connected with a slider (54), the slider (54) is slidably connected with the vertical plate (2), the upper ear plate (93) is fixedly connected to the bottom of the lifting plate (51), the interior of the lifting plate (51) is fixedly connected with a counterweight block (52), and the bottom of the counterweight block (52) is fixedly connected with a hammer rod (53).

7. A foundation bearing capacity detection device according to claim 6, characterized in that: The driving assembly (4) comprises a forward and reverse motor (41) fixedly mounted on the top of the top plate (3); the output end of the forward and reverse motor (41) is fixedly connected to a shaft (42); the outer wall of the shaft (42) is fixedly connected to a winding disk (43); the outer wall of the winding disk (43) is fixedly connected to a lifting rope (44); the lifting rope (44) is wound around the winding disk (43); and one end of the lifting rope (44) away from the winding disk (43) is fixedly mounted on the top of the lifting plate (51).

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