A rapid detection device and method for foundation bearing capacity

Abstract

The present invention belongs to the technical field of foundation detection equipment, and discloses a foundation bearing capacity rapid detection device and method, comprising a base plate, the upper surface of the base plate is fixedly connected to a support frame, two support plates are fixedly connected between the inner top wall of the support frame and the base plate, the top of the support frame is fixedly connected to a first shell, a first side plate and a second side plate, and the first shell is located in the middle position of the support frame, by driving two winding rollers to rotate in opposite directions, the second measuring rod can be lifted while the first measuring rod is hit to the foundation, and when the second measuring rod is lifted to the highest point, the magnetism between the first electromagnet and the second electromagnet will be controlled to disappear at the same time, so that the second measuring rod can continue to hit the foundation, and at the same time the first measuring rod is lifted upwards, and this reciprocating process can continuously make the measuring rod hit the foundation, thereby ensuring the continuity of detection, and further greatly improving the detection efficiency.

Description

Technical Field

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

[0002] The bearing capacity of foundation refers to the bearing potential of foundation soil per unit area as the load increases. It is a comprehensive term for evaluating foundation stability. The size of foundation bearing capacity is not only related to the safety of the building but also determines the foundation form and cost of the building. Insufficient foundation bearing capacity will cause the structure to sink and then cause large-scale structural damage. Therefore, the foundation bearing capacity must be determined before constructing a building.

[0003] A foundation bearing capacity detection device with publication number CN115961604A includes a detection seat, a measuring rod, a drop hammer seat, a first guide mechanism, a second guide mechanism and a lifting device; a drop cavity is provided on the detection seat; the drop hammer seat is fixedly arranged on the measuring rod, and the measuring rod and the drop hammer seat are both arranged in the drop cavity; the first guide mechanism includes a limit seat and a plurality of fixing parts; a supporting edge is provided at the bottom of the drop cavity, the limit seat is arranged on the supporting edge through the fixing parts, and a guide hole for guiding the measuring rod is provided on the limit seat.

[0004] The above device can guide the movement of the drop hammer seat and the measuring rod, thereby reducing the shaking of the drop hammer seat and the measuring rod during the detection process and improving the detection accuracy of the foundation bearing capacity. However, when detecting the foundation bearing capacity, it is often necessary to drive the measuring rod to hit the foundation multiple times, obtain multiple sets of data, and then calculate the average of the data to ensure the accuracy of the detection. When the above device is actually tested, it is necessary to release the limit on the measuring rod, so that the measuring rod hits the foundation, and then lift the measuring rod up to limit it before completing a single hit on the foundation. Therefore, hitting the foundation multiple times will waste a long time, which will greatly affect the detection efficiency. To this end, we provide a rapid detection device and method for foundation bearing capacity to solve the above problems. Summary of the invention

[0005] In order to solve the problems raised in the above background technology, the present invention provides a rapid detection device and method for foundation bearing capacity, which has the advantages of high detection consistency and high detection efficiency.

[0006] The cam is an assembly made of a plurality of support plates, each of which is connected to a pair of support plates at a respective one of the sides of the support plate and a plurality of support plates at a respective one of the sides of the support plate.

[0007] The detection assembly includes a hammering member, which is slidably connected between the support plate and a side wall of the support frame, a second electromagnet is installed on the top of the hammering member, and a first electromagnet adapted to the second electromagnet is installed at one end of the wire rope away from the winding roller;

[0008] The driving assembly includes a second rotating shaft rotatably installed inside the first shell, the outer surface of the second rotating shaft and the outer surface of the driving shaft located inside the first shell are fixedly connected with a second gear, the two second gears are meshed, the outer surface of the second rotating shaft and the outer surface of the driven shaft located inside the first shell are fixedly connected with a second synchronous wheel, and the two second synchronous wheels are connected by a second synchronous belt transmission.

[0009] Preferably, a measuring rod is installed at the bottom of the hammer member, and a rod hole for the measuring rod to pass through is opened on the bottom plate.

[0010] Preferably, four counterweights are installed on the top of the hammer member, and the four counterweights are respectively located at the four corners of the hammer member.

[0011] Preferably, an electromagnetic sensor is installed between one side surface of the support plate and one side wall of the support frame, and the two electromagnetic sensors are electrically connected to the first electromagnet and the second electromagnet.

[0012] Preferably, the drive assembly also includes a second shell fixedly connected to the upper surface of the base plate, the second shell is fitted with the support frame and the first side plate, a reciprocating screw is rotatably installed inside the second shell, a drive motor is installed on the top of the second shell, and the output end of the drive motor is fixedly connected to the top end of the reciprocating screw.

[0013] Preferably, the outer surface of the reciprocating screw is threadedly connected to a threaded block, the threaded block is slidably connected to the inside of the second shell, and the outer surface of the threaded block is fixedly connected to a toothed plate.

[0014] Preferably, a first rotating shaft is rotatably mounted inside the second housing, a first gear is fixedly connected to an outer surface of the first rotating shaft, and the first gear is meshed with a gear plate.

[0015] Preferably, one end of the driving shaft passes through the first side plate and is rotatably connected to the inside of the second shell, and the outer surface of the driving shaft located inside the second shell and the outer surface of the first rotating shaft are both fixedly connected to the first synchronous wheel, and the two first synchronous wheels are connected by a first synchronous belt transmission.

[0016] The present invention also provides a method for using a rapid detection device for foundation bearing capacity, comprising the following steps:

[0017] S1: Move the device to the foundation detection area and then fix the device with expansion bolts;

[0018] S2: Install two measuring rods at one end of the two steel wire ropes respectively, with one measuring rod located at the highest point and the other measuring rod inserted into the foundation through the rod hole.

[0019] S3: Start the drive motor, and then the two measuring rods can hit the foundation alternately and continuously, so as to obtain multiple sets of data. At the same time, the background staff will record the data.

[0020] S4: After the test is completed, the staff will calculate the data and determine the bearing capacity of the foundation.

[0021] The beneficial effect of the present invention is that by driving the two winding rollers to rotate in opposite directions, the present invention can lift the second measuring rod while the first measuring rod hits the foundation, and when the second measuring rod is lifted to the highest point, the magnetism between the first electromagnet and the second electromagnet is controlled to disappear at the same time, so that the second measuring rod can continue to hit the foundation, and at the same time the first measuring rod can be lifted upward, and so on and so forth, so that the measuring rods can be continuously hit against the foundation, thereby ensuring the continuity of detection and greatly improving the detection efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention;

[0023] Figure 2 is a cross-sectional view of the present invention;

[0024] Figure 3 It is a schematic diagram of the connection between the toothed plate and the first gear of the present invention;

[0025] Figure 4 is a schematic diagram of the connection between two second gears of the present invention;

[0026] Figure 5 It is a connection diagram of the first electromagnet and the second electromagnet of the present invention.

[0027] In the figure: 1, bottom plate; 2, support frame; 3, first shell; 4, first side plate; 5, second side plate; 6, detection assembly; 601, hammer; 602, measuring rod; 603, rod hole; 604, counterweight; 605, first electromagnet; 606, second electromagnet; 607, electromagnetic sensor; 7, drive assembly; 701, second shell; 702, reciprocating screw; 703, drive motor; 704, threaded block; 705, tooth plate; 706, first rotating shaft; 707, first gear; 708, first synchronous wheel; 709, second rotating shaft; 710, second gear; 711, second synchronous wheel; 8, driven shaft; 9, driving shaft; 10, winding roller; 11, wire rope; 12, support plate. DETAILED DESCRIPTION

[0028] 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 described embodiments 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 creative work are within the scope of protection of the present invention.

[0029] like Figure 1-5 As shown, an embodiment of the present invention discloses a rapid detection device for foundation bearing capacity, comprising a base plate 1, a support frame 2 is fixedly connected to the upper surface of the base plate 1, two support plates 12 are fixedly connected between the inner top wall of the support frame 2 and the base plate 1, a first shell 3, a first side plate 4 and a second side plate 5 are fixedly connected to the top of the support frame 2, and the first shell 3 is located in the middle position of the support frame 2, the first side plate 4 and the second side plate 5 are respectively located at the two side edges of the support frame 2 and are symmetrical about the first shell 3, a driving shaft 9 is rotatably connected between the first side plate 4 and the first shell 3, a driven shaft 8 is rotatably connected between the second side plate 5 and the first shell 3, and a winding roller 10 is fixedly connected to the outer surfaces of the driven shaft 8 and the driving shaft 9, and a steel wire rope 11 is wound on the two winding rollers 10, and a rope hole for the steel wire rope 11 to pass through is opened on the support frame 2; when the winding roller 10 rotates forward, the steel wire rope 11 can be wound, and when the winding roller 10 rotates reversely, the steel wire rope 11 can be released.

[0030] The ends of the two steel wire ropes 11 away from the winding roller 10 are each provided with a detection assembly 6, the detection assembly 6 includes a hammer piece 601, the hammer piece 601 is slidably connected between the support plate 12 and a side wall of the support frame 2, a second electromagnet 606 is installed on the top of the hammer piece 601, and the end of the steel wire rope 11 away from the winding roller 10 is installed with a first electromagnet 605 adapted to the second electromagnet 606; one of the detection assemblies 6 is located between one of the support plates 12 and the left side wall of the support frame 2, and the other detection assembly 6 is located between the other support plate 12 and the right side wall of the support frame 2, bosses are provided on both sides of the hammer piece 601, and sliding grooves adapted to the bosses are provided on the support plate 12 and the support frame 2. Through the cooperation between the boss and the sliding groove, not only the lifting and lowering smoothness of the hammer piece 601 can be improved, but also the hammer piece 601 can be guided.

[0031] A measuring rod 602 is installed at the bottom of the hammer 601, and a rod hole 603 for the measuring rod 602 to pass through is opened on the bottom plate 1; after the measuring rod 602 passes through the rod hole 603 and hits the foundation, the bearing capacity of the foundation can be tested.

[0032] Four counterweights 604 are installed on the top of the hammer piece 601, and the four counterweights 604 are respectively located at the four corners of the hammer piece 601; counterweights 604 of different weights can be installed according to specific detection needs. By installing the four counterweights 604 at the four corners of the hammer piece 601, the uniformity of force can be ensured.

[0033] Electromagnetic sensors 607 are installed between one side of the support plate 12 and one side wall of the support frame 2, and the two electromagnetic sensors 607 are electrically connected to the first electromagnet 605 and the second electromagnet 606; when the first electromagnet 605 drives the second electromagnet 606 and the hammer 601 to move to the highest point, the electromagnetic sensor 607 will control the current between the first electromagnet 605 and the second electromagnet 606 to be disconnected, so that the magnetic field will disappear, and then the second electromagnet 606, the hammer 601 and the measuring rod 602 will fall down and hit the foundation, and when the first electromagnet 605 moves downward to contact with the second electromagnet 606, under the action of magnetic force, the first electromagnet 605 and the second electromagnet 606 will be adsorbed together, and then when the wire rope 11 is wound, the second electromagnet 606 and the hammer 601 can be driven to move upward.

[0034] A driving assembly 7 for driving the two winding rollers 10 to rotate in opposite directions is provided on the base plate 1. The driving assembly 7 includes a second rotating shaft 709 rotatably mounted inside the first shell 3. The outer surface of the second rotating shaft 709 and the outer surface of the inner part of the driving shaft 9 located inside the first shell 3 are fixedly connected with a second gear 710. The two second gears 710 are meshed with each other. The outer surface of the second rotating shaft 709 and the outer surface of the inner part of the driven shaft 8 located inside the first shell 3 are fixedly connected with a second synchronous wheel 711. The two second synchronous wheels 711 are connected by a second synchronous belt transmission. When the driving shaft 9 and the second gear 710 on the driving shaft 9 rotate forwardly, the second rotating shaft 709 and the second gear 710 on the second rotating shaft 709 can be driven to rotate in the opposite direction. The reverse rotation of the second rotating shaft 709 can drive the second synchronous wheel 711 and the driven shaft 8 to rotate in the opposite direction. Similarly, when the driving shaft 9 rotates in the opposite direction, the driven shaft 8 can be driven to rotate forwardly.

[0035] The driving assembly 7 also includes a second shell 701 fixedly connected to the upper surface of the base plate 1, the second shell 701 is fitted with the support frame 2 and the first side plate 4, a reciprocating screw 702 is rotatably installed inside the second shell 701, a driving motor 703 is installed on the top of the second shell 701, the output end of the driving motor 703 is fixedly connected to the top of the reciprocating screw 702, the outer surface of the reciprocating screw 702 is threadedly connected with a thread block 704, the thread block 704 is slidably connected to the inside of the second shell 701, and the outer surface of the thread block 704 is fixedly connected with a tooth plate 705; start the driving motor 703, the driving motor 703 can drive the reciprocating screw 702 to rotate, and the rotation of the reciprocating screw 702 can drive the thread block 704 and the tooth plate 705 to move back and forth along the reciprocating screw 702.

[0036] The second shell 701 is internally rotatably installed with a first rotating shaft 706, and the outer surface of the first rotating shaft 706 is fixedly connected with a first gear 707, and the first gear 707 is meshed with the tooth plate 705; the tooth plate 705 moves upward to drive the first gear 707 and the first rotating shaft 706 to rotate in the forward direction, and the tooth plate 705 moves downward to drive the first gear 707 to rotate in the reverse direction, so that when the tooth plate 705 moves back and forth along the reciprocating screw 702, it can drive the first gear 707 to rotate reciprocatingly.

[0037] One end of the driving shaft 9 passes through the first side plate 4 and is rotatably connected to the inside of the second shell 701. The outer surface of the driving shaft 9 located inside the second shell 701 and the outer surface of the first rotating shaft 706 are fixedly connected with a first synchronous wheel 708. The two first synchronous wheels 708 are connected through a first synchronous belt transmission. Under the action of the first synchronous wheel 708 and the first synchronous belt, the rotation of the first rotating shaft 706 can drive the first synchronous wheel 708 and the driving shaft 9 to rotate accordingly.

[0038] The present invention also provides a method for using a rapid detection device for foundation bearing capacity, comprising the following steps:

[0039] S1: Move the device to the foundation detection area and then fix the device with expansion bolts;

[0040] S2: Install two measuring rods 602 at one end of two steel wire ropes 11 respectively, and make one of the measuring rods 602 located at the highest point, and the other measuring rod 602 passes through the rod hole 603 and is inserted into the foundation.

[0041] S3: Start the driving motor 703, and then the two measuring rods 602 can hit the foundation alternately and continuously, so as to obtain multiple sets of data. At the same time, the background staff records the data.

[0042] S4: After the test is completed, the staff will calculate the data and determine the bearing capacity of the foundation.

[0043] Working principle: When testing the bearing capacity of the foundation, first move the device to the specified position and fix it with expansion bolts. Then install the two measuring rods 602 at one end of the two steel wire ropes 11 respectively, and make one of the measuring rods 602 located at the highest point, and the other measuring rod 602 is inserted into the foundation. Then start the drive motor 703, which can drive the reciprocating screw rod 702 to rotate. The rotation of the reciprocating screw rod 702 can drive the thread block 704 and the tooth plate 705 to reciprocate along the reciprocating screw rod 702. The tooth plate The reciprocating movement of 705 can drive the first gear 707 to reciprocate, and the reciprocating rotation of the first gear 707 can drive the first synchronous wheel 708 and the driving shaft 9 to reciprocate. When the driving shaft 9 and the second gear 710 on the driving shaft 9 rotate forward, the second rotating shaft 709 and the second gear 710 on the second rotating shaft 709 can be driven to rotate in the opposite direction. The reverse rotation of the second rotating shaft 709 can drive the second synchronous wheel 711 and the driven shaft 8 to rotate in the opposite direction. Similarly, when the driving shaft 9 rotates in the opposite direction, the driven shaft 8 can be driven to rotate forward. The rotation of the magnet 8 and the driving shaft 9 can drive the two winding rollers 10 to rotate accordingly. When the winding roller 10 rotates in the forward direction, the wire rope 11 can be wound up. When the winding roller 10 rotates in the reverse direction, the wire rope 11 can be released, so that the second measuring rod 602 can be lifted up while the first measuring rod 602 hits the foundation. When the hammer 601 and the measuring rod 602 are lifted to the highest point, the electromagnetic sensor 607 controls the current between the first electromagnet 605 and the second electromagnet 606 to be disconnected, so that the magnetic field disappears. Afterwards, the second electromagnet 606, the hammer part 601 and the measuring rod 602 will fall down and hit the foundation. When the first electromagnet 605 moves downward and contacts with the second electromagnet 606, under the action of magnetic force, the first electromagnet 605 and the second electromagnet 606 will be adsorbed together. Then, the winding wire rope 11 can drive the second electromagnet 606 and the hammer part 601 to move upward. This reciprocating process can continuously make the measuring rod 602 hit the foundation, thereby ensuring the continuity of detection and greatly improving the detection efficiency.

[0044] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0045] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A rapid detection device for foundation bearing capacity, comprising a base plate (1), characterized in that: The upper surface of the bottom plate (1) is fixedly connected to a support frame (2); two support plates (12) are fixedly connected between the inner top wall of the support frame (2) and the bottom plate (1); the top of the support frame (2) is fixedly connected to a first shell (3), a first side plate (4) and a second side plate (5); the first shell (3) is located in the middle of the support frame (2); the first side plate (4) and the second side plate (5) are respectively located at the two side edges of the support frame (2) and are symmetrical with respect to the first shell (3); a driving shaft (12) is rotatably connected between the first side plate (4) and the first shell (3) 9), a driven shaft (8) is rotatably connected between the second side plate (5) and the first shell (3), the outer surfaces of the driven shaft (8) and the driving shaft (9) are fixedly connected with winding rollers (10), the two winding rollers (10) are wound with steel wire ropes (11), the support frame (2) is provided with rope holes for the steel wire ropes (11) to pass through, the ends of the two steel wire ropes (11) away from the winding rollers (10) are provided with detection components (6), and the bottom plate (1) is provided with a driving component (7) for driving the two winding rollers (10) to rotate in opposite directions; The detection assembly (6) comprises a hammer (601), the hammer (601) being slidably connected between the support plate (12) and a side wall of the support frame (2), a second electromagnet (606) being mounted on the top of the hammer (601), and a first electromagnet (605) matching the second electromagnet (606) being mounted on one end of the steel wire rope (11) away from the winding roller (10); The driving assembly (7) comprises a second rotating shaft (709) rotatably mounted inside the first housing (3); the outer surface of the second rotating shaft (709) and the outer surface of the driving shaft (9) located inside the first housing (3) are both fixedly connected with a second gear (710); the two second gears (710) are meshed with each other; the outer surface of the second rotating shaft (709) and the outer surface of the driven shaft (8) located inside the first housing (3) are both fixedly connected with a second synchronous wheel (711); the two second synchronous wheels (711) are connected via a second synchronous belt transmission; A measuring rod (602) is installed at the bottom of the hammering member (601), and a rod hole (603) for the measuring rod (602) to pass through is provided on the bottom plate (1); An electromagnetic sensor (607) is installed between one side surface of the support plate (12) and one side wall of the support frame (2), and the two electromagnetic sensors (607) are electrically connected to the first electromagnet (605) and the second electromagnet (606).

2. The rapid detection device for foundation bearing capacity according to claim 1 is characterized in that: Four counterweight blocks (604) are installed on the top of the hammering piece (601), and the four counterweight blocks (604) are respectively located at the four corners of the hammering piece (601).

3. The rapid detection device for foundation bearing capacity according to claim 1 is characterized in that: The driving assembly (7) further comprises a second shell (701) fixedly connected to the upper surface of the base plate (1); the second shell (701) is fitted with the support frame (2) and the first side plate (4); a reciprocating screw rod (702) is rotatably mounted inside the second shell (701); a driving motor (703) is mounted on the top of the second shell (701); and an output end of the driving motor (703) is fixedly connected to the top end of the reciprocating screw rod (702).

4. The rapid detection device for foundation bearing capacity according to claim 3 is characterized in that: The outer surface of the reciprocating screw rod (702) is threadedly connected to a threaded block (704), the threaded block (704) is slidably connected to the inside of the second housing (701), and the outer surface of the threaded block (704) is fixedly connected to a toothed plate (705).

5. The rapid detection device for foundation bearing capacity according to claim 4 is characterized in that: A first rotating shaft (706) is rotatably mounted inside the second housing (701), a first gear (707) is fixedly connected to the outer surface of the first rotating shaft (706), and the first gear (707) is meshed with the gear plate (705).

6. The rapid detection device for foundation bearing capacity according to claim 5 is characterized in that: One end of the driving shaft (9) passes through the first side plate (4) and is rotatably connected to the inside of the second housing (701); the outer surface of the driving shaft (9) located inside the second housing (701) and the outer surface of the first rotating shaft (706) are both fixedly connected to a first synchronous wheel (708); the two first synchronous wheels (708) are connected via a first synchronous belt transmission.

7. A method for using a rapid detection device for foundation bearing capacity, using the rapid detection device for foundation bearing capacity according to any one of claims 3 to 6, characterized in that: The following steps are involved: S1: Move the device to the foundation detection area and then fix the device with expansion bolts; S2: Install two measuring rods (602) at one end of two steel wire ropes (11), respectively, and make one of the measuring rods (602) be located at the highest point, and the other measuring rod (602) pass through the rod hole (603) and insert into the foundation; S3: Start the driving motor (703), and then the two measuring rods (602) can continuously and alternately hit the foundation, so as to obtain multiple sets of data. At the same time, the background staff records the data; S4: After the test is completed, the staff will calculate the data and determine the bearing capacity of the foundation.

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