Foundation pile quality detection equipment

Abstract

The invention relates to the technical field of constructional engineering, and discloses foundation pile quality detection equipment which comprises a foundation pile body, a hoisting plate and a positioning ring, an adjusting ring is rotationally arranged on the lower side of the positioning ring, a positioning plate is arranged between the positioning ring and the adjusting ring, riveting rods are connected to the two sides of the positioning plate, and a straight groove is formed in the side portion of the positioning ring. An arc groove is formed in the side portion of the adjusting ring, the riveting rods are slidably inserted into the straight groove and the arc groove respectively, a connecting rod is installed on the outer side of the positioning plate, an inserting rod is installed at the top of the connecting rod and slidably inserted into the side portion of the hoisting plate, and a clamp used for hanging a heavy hammer body is arranged on the lower side of the hoisting plate. The riveting rod slides in the arc groove and the straight groove, so that the positioning plate moves to abut against the side portion of the foundation pile body, the positioning plate drives the connecting rod and the inserting rod to move, the hoisting plate drives the center of the heavy hammer body and the center of the foundation pile body to be located on the same vertical line, and the clamp is loosened to enable the heavy hammer body to freely fall down to hammer the top of the foundation pile body. Therefore, the high-strain detection efficiency of the foundation pile body is improved.

Description

Technical Field

[0001] The invention relates to the technical field of construction engineering, in particular to a foundation pile quality detection device. Background Art

[0002] A foundation pile refers to a single pile in a pile group foundation. A pile group foundation consists of a foundation pile and a cap connected to the top of the pile. It is used to ensure the stability of the building. The foundation pile plays an important role in construction projects. The foundation pile is buried in the soil. The load of the building can be transmitted to a deep stable soil layer or bedrock through the pile foundation. It can also resist earthquake liquefaction, control settlement and increase foundation stiffness.

[0003] In order to ensure the quality of the foundation piles, it is necessary to test the foundation piles. The main methods include high strain method, low strain method, acoustic wave transmission method and core drilling method. The low strain method generates stress waves by applying an excitation signal to the top of the pile, and detects the propagation time, amplitude and waveform characteristics of the reflected wave to determine the integrity of the pile; the acoustic wave transmission method uses ultrasonic pulses to excite high-frequency elastic pulse waves, records the fluctuation characteristics, and determines the density parameters of the concrete in the measurement area and the nature, size and spatial position of internal defects; the core drilling method uses a high-speed drill to detect the length and strength of the concrete pile foundation, the thickness of the sediment at the bottom of the pile foundation, the integrity of the pile body, etc.

[0004] High strain detection is a test to determine the vertical compressive bearing capacity and pile integrity of the foundation pile. It is necessary to first install the sensor at a suitable position on the side of the foundation pile. The best installation position of the sensor is twice the pile side length or diameter from the pile top. Ensure that the installation surface is flat and smooth, and that the force direction of the sensor is parallel to the pile axis. The sensor must not be loose. Connect the acceleration sensor and strain sensor to the host. Then use a heavy hammer to freely fall and hit the top of the pile. The sensor sends the detected data to the host, and the data is analyzed to determine and detect the vertical compressive bearing capacity and pile integrity of the foundation pile.

[0005] At present, when the existing technology performs high-strain detection on foundation piles, it is usually necessary to hang a heavy hammer above the foundation pile through a crane and a hook, and then the heavy hammer falls freely and hits the top of the pile. However, since the heavy hammer hoisted by the crane is easy to shake, it is not convenient to position the heavy hammer above the foundation pile, which can easily affect the efficiency of the foundation pile quality detection; therefore, it does not meet the existing needs. In this regard, we propose a foundation pile quality detection equipment. Summary of the invention

[0006] The present invention provides a pile foundation quality inspection device, which has the beneficial effect of improving the efficiency of pile foundation quality inspection, and solves the problem that when the prior art mentioned in the above background technology performs high-strain inspection on pile foundations, it is usually necessary to hang a heavy hammer above the pile foundation by a crane and a hook, and then the heavy hammer falls freely and hits the top of the pile. However, since the heavy hammer hoisted by the crane is prone to shaking, it is not convenient to position the heavy hammer above the pile foundation, which easily affects the efficiency of pile foundation quality inspection.

[0007] The present invention provides the following technical scheme: a kind of foundation pile quality inspection equipment, comprises a foundation pile body, a lifting plate, and a positioning ring sleeved on the end part of the foundation pile body, an adjusting ring is rotatably arranged on the lower side of the positioning ring, a positioning plate is arranged between the positioning ring and the adjusting ring, riveted rods are connected on both sides of the positioning plate, a straight groove is opened on the side of the positioning ring, an arc groove is opened on the side of the adjusting ring, two riveted rods are slidably inserted in the straight groove and the arc groove respectively, a connecting rod is installed on the outer side of the positioning plate, a clamp is opened on the side of the positioning ring, a card groove is opened on the bottom of the connecting rod is slidably inserted in the card groove, an insertion rod is installed on the top of the connecting rod, and the end of the insertion rod is slidably inserted on the side of the lifting plate, and a clamp is arranged on the lower side of the lifting plate, the clamp is used to suspend a heavy hammer body, and the heavy hammer body is used to hammer the top of the foundation pile body.

[0008] As an optional solution for the pile quality inspection equipment described in the present invention, a cable is installed on the upper side of the lifting plate, and the upper end of the cable is connected to the crane lifting arm.

[0009] As an optional solution of the pile quality inspection equipment described in the present invention, wherein: the number of the positioning plates, the straight grooves, and the arc grooves are all set to be several, and the several positioning plates are circumferentially equidistantly arranged between the positioning ring and the adjustment ring, and the positioning plates are all set to be arc-shaped plates; In an initial state, the positioning ring, the adjustment ring, and the inner ring of the positioning plate are all located on the same annular surface, and the inner diameter of the positioning ring is greater than the outer diameter of the foundation pile body.

[0010] As an optional solution for the pile foundation quality inspection equipment described in the present invention, a motor is installed on the outer side of the positioning plate, a first gear is installed on the output shaft of the motor, a tooth groove is opened on the side of the adjustment ring, and the first gear is meshed with the tooth groove.

[0011] As an optional solution for the pile quality inspection equipment described in the present invention, springs are arranged on the inner side of the hanging plate, the number of the springs is the same as the number of the insertion rods, one end of the spring is connected to the insertion rod, and the other end of the spring is connected to the inner wall of the hanging plate.

[0012] As an optional solution of the pile quality inspection equipment described in the present invention, wherein: a hanging ring is arranged on the top of the weight body, the clamp comprises a first clamping claw and a second clamping claw, the first clamping claw and the second clamping claw are close to each other in an initial state, and the hanging ring is arranged between the first clamping claw and the second clamping claw; A shell is provided at the lower side of the hanging plate, and a first telescopic member is installed at the upper side of the hanging plate, the telescopic end of the first telescopic member passes through the hanging plate and is connected to the shell, the upper ends of the first clamping claw and the second clamping claw are slidably inserted in the shell, and a first slider is installed at the upper ends of the first clamping claw and the second clamping claw, a first slide groove for use with the first slider is provided on the inner side of the shell, the first slider is slidably set in the first slide groove, a second slider is also provided on the inner side of the shell, the second slider is located between the two first sliders, and a second slide groove for use with the second slider is provided on the inner side of the shell, and the second slider is slidably set in the second slide groove.

[0013] As an optional solution of the pile quality inspection equipment described in the present invention, wherein: a push-pull rod is provided between the two first sliders and the second sliders, the two ends of one push-pull rod are respectively rotatably connected to one first slider and the second slider, and the two ends of another push-pull rod are respectively rotatably connected to another first slider and the second slider; A second telescopic member is installed inside the shell, a telescopic end of the second telescopic member is connected to a traction rope, and an end of the traction rope is connected to the second sliding block.

[0014] As an optional solution of the pile foundation quality inspection equipment described in the present invention, a second gear is rotatably arranged inside the shell, a bearing is sleeved on the end of the shaft rod of the second gear, the bearing is installed on the inner side of the shell, the shaft rod of the second gear is in contact with the inner ring of the bearing, the inner wall of the shell is in contact with the outer ring of the bearing, a first rack is installed on the side of the second slider, a second rack is slidably inserted on the bottom of the shell, the first rack and the second rack are respectively meshed with two sides of the second gear, a top plate is installed on the bottom end of the second rack, and the top plate is located outside the shell.

[0015] As an optional scheme for the pile foundation quality inspection equipment described in the present invention, there are protrusions slidably inserted on one side of the positioning plate close to the pile foundation body, and switches are arranged on the inner side of the positioning plate, the switches include a first electric contact connected to the protrusion, and a second electric contact installed inside the positioning plate, an alarm is installed on the outer side of the positioning ring, the side of the alarm is electrically connected to an electric wire, and the end of the electric wire is connected to the positive pole of an external power supply.

[0016] As an optional solution for the pile quality inspection equipment described in the present invention, the outer side of the alarm is also electrically connected to one of the first electrical contacts through the electric wire, and several of the switches are connected in series through the electric wire and connected to the negative pole of the external power supply.

[0017] The present invention has the following beneficial effects: 1. The motor of the pile quality inspection equipment is started, and the first gear is meshed with the tooth groove, so that the adjusting ring rotates slowly, and the riveting rod slides in the arc groove and the straight groove at the same time, so that the positioning plates around move inward at the same time until all the positioning plates are in contact with the side of the pile body; Not only that, the positioning plate drives the connecting rod and the insertion rod to move synchronously, and calibrates the horizontal position of the lifting plate, so that the lifting plate drives the weight body to move horizontally, so that the center of the weight body and the center of the pile body are on the same vertical line. Finally, the clamp is loosened to allow the weight body to fall freely and hit the top of the pile body, thereby improving the efficiency of high-strain detection of the pile body.

[0018] 2. The pile quality inspection equipment, when the weight body is calibrated to the position, the telescopic end of the second telescopic member retracts, and the second slider is pulled upward by the traction rope, so that the push-pull rod pushes the first sliders on both sides, thereby driving the first clamping claw and the second clamping claw to move to both sides respectively to open the clamp, so that the weight body falls freely and hits the top of the pile body, and then the telescopic end of the second telescopic member is expanded and restored again, and due to the damping resistance of the bearing, the second slider is stationary relative to the housing, so that the traction rope is relaxed; At the same time, the upward moving second slider drives the first rack upward, and the second rack drives the top plate to descend through the meshing of the two sides of the second gear with the first rack and the second rack respectively. Subsequently, the first telescopic member drives the shell to descend until the first clamping claw and the second clamping claw are respectively located on both sides of the hanging ring, and the top plate is pressed down on the hanging ring, so that the second rack remains stationary while the shell descends, thereby driving the second slider to move down and reset through the meshing of the second gear with the first rack, so that the traction rope is restored to a taut state, and the first clamping claw and the second clamping claw are closed to clamp the hanging ring again, and the weight body is driven to rise and reset through the first telescopic member, so that the weight body can repeatedly hammer the top of the pile body, thereby further improving the efficiency of pile quality inspection.

[0019] 3. In the pile quality inspection equipment, the positioning plate drives the protrusion to move inward synchronously. When the protrusion abuts against the pile body, the protrusion is pressed into the positioning plate, so that the positioning plate drives the first electric contact to abut against the second electric contact, so that a switch is closed and energized. Similarly, when all the positioning plates abut against the pile body, the pile body can be clamped firmly. At this time, all switches are closed, so that the alarm forms a complete circuit loop with the external power supply, so that the alarm sounds an alarm to remind, ensuring that the center of the weight body and the center of the pile body are on the same vertical line, thereby ensuring the accuracy of the weight body position calibration. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention.

[0021] Figure 2 It is an exploded view of the local structure of the present invention.

[0022] Figure 3 It is a schematic diagram of the three-dimensional structure of the connecting rod of the present invention.

[0023] Figure 4 It is a schematic structural diagram of the initial state of the positioning plate of the present invention.

[0024] Figure 5 It is a schematic diagram of the second state structure of the positioning plate of the present invention.

[0025] Figure 6 It is a schematic diagram of the partial cutaway structure of the present invention.

[0026] Figure 7 It is a schematic diagram of the three-dimensional structure of the weight body of the present invention.

[0027] Figure 8 It is a schematic diagram of the clamp closing structure of the present invention.

[0028] Fig. 9 It is a schematic diagram of the structure of the clamp of the present invention.

[0029] Fig.10 It is a schematic diagram of the three-dimensional structure of the second gear of the present invention.

[0030] Fig.11 It is a schematic diagram of the three-dimensional structure of the switch of the present invention.

[0031] Fig.12 It is the circuit diagram of the alarm device of the present invention.

[0032] In the figure: 1, pile body; 100, lifting plate; 101, cable; 110, positioning ring; 120, adjusting ring; 130, positioning plate; 140, riveting rod; 150, straight groove; 160, arc groove; 161, motor; 162, first gear; 163, tooth groove; 170, connecting rod; 180, slot; 190, plug rod; 191, spring; 200, clamp; 201, first clamping claw; 202, second clamping claw; 210, heavy hammer body; 211, hanging ring; 22 0. Shell; 221. First telescopic member; 222. First slider; 223. First slide groove; 224. Second slider; 225. Second slide groove; 226. Push-pull rod; 227. Second telescopic member; 228. Traction rope; 230. Second gear; 231. Bearing; 232. First rack; 233. Second rack; 234. Top plate; 240. Bump; 241. Switch; 2411. First electric contact; 2412. Second electric contact; 242. Alarm; 243. Electric wire. DETAILED DESCRIPTION

[0033] 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.

[0034] Embodiment 1: This embodiment aims to solve the problem that when performing high strain detection on foundation piles in the prior art, a heavy hammer is usually hung above the foundation pile by a crane and a hook, and then the heavy hammer falls freely and hits the top of the pile. However, since the heavy hammer hoisted by the crane is easy to shake, it is not convenient to position the heavy hammer above the foundation pile, which easily affects the efficiency of foundation pile quality detection. Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 , Figure 8 and Fig. 9 A pile quality inspection device includes a pile body 1, a lifting plate 100, and a positioning ring 110 sleeved on the end of the pile body 1. A cable 101 is installed on the upper side of the lifting plate 100. The lower end of the cable 101 is divided into four branch ropes, and the lower ends of the four branch ropes are fixedly connected to the lifting plate 100. The main rope at the upper end of the cable 101 is connected to the crane lifting arm, so as to lift the lifting plate 100 in a more balanced manner.

[0035] An adjusting ring 120 is rotatably arranged at the lower side of the positioning ring 110, a positioning plate 130 is arranged between the positioning ring 110 and the adjusting ring 120, riveted rods 140 are fixedly connected to the upper and lower sides of the positioning plate 130, a straight groove 150 is opened on the side of the positioning ring 110, an arc groove 160 is opened on the side of the adjusting ring 120, the riveted rod 140 on the upper side of the positioning plate 130 is slidably inserted in the straight groove 150, and the riveted rod 140 on the lower side of the positioning plate 130 is slidably inserted in the arc groove 160, the number of positioning plates 130, straight grooves 150, and arc grooves 160 are all set to several, and several positioning plates 130 are evenly arranged circumferentially between the positioning ring 110 and the adjusting ring 120, and the positioning plates 130 are all set to arc-shaped plates.

[0036] In the initial state, the inner rings of the positioning ring 110, the adjusting ring 120, and the positioning plate 130 are all on the same annular surface, and the inner diameter of the positioning ring 110 is larger than the outer diameter of the pile body 1. A motor 161 is fixedly mounted on the outer side of the positioning plate 130, and a first gear 162 is fixedly mounted on the output shaft of the motor 161. A tooth groove 163 is opened on the side of the adjusting ring 120, and the first gear 162 is meshed with the tooth groove 163.

[0037] A connecting rod 170 is fixedly installed on the upper side of the positioning plate 130, a slot 180 is opened on the side of the positioning ring 110, the bottom of the connecting rod 170 is slidably inserted in the slot 180, and a plug rod 190 is fixedly installed on the top of the connecting rod 170. The ends of the plug rod 190 are slidably inserted in the side of the hanging plate 100. A spring 191 is arranged on the inner side of the hanging plate 100. The number of springs 191 is the same as the number of plug rods 190. One end of the spring 191 is fixedly connected to the plug rod 190. Then, the other end of the spring 191 is fixedly connected to the inner wall of the lifting plate 100. A clamp 200 is provided on the lower side of the lifting plate 100. The clamp 200 is used to hang a weight body 210. The weight body 210 is used to hammer the top of the pile body 1. The diameter of the weight body 210 is smaller than the diameter of the pile body 1, so that there is always a gap between the connecting rod 170 and the weight body 210 to prevent the connecting rod 170 from hindering the free fall of the weight body 210.

[0038] In this embodiment: the hoisting plate 100 is hoisted by a crane, the adjusting ring 120 and the positioning ring 110 are sleeved on the end of the pile body 1, and the weight body 210 is at a suitable height from the top of the pile body 1. Then, the motor 161 is started, and the adjusting ring 120 is slowly rotated through the meshing of the first gear 162 and the tooth groove 163. At the same time, the riveting rod 140 slides in the arc groove 160 and the straight groove 150 at the same time, so that the positioning plates 130 around are moved inward at the same time until all the positioning plates 130 are in contact with the side of the pile body 1. Moreover, the positioning plate 130 drives the connecting rod 170 and the inserting rod 190 to move synchronously, and calibrates the horizontal position of the hanging plate 100, so that the hanging plate 100 drives the weight body 210 to move horizontally, so that the center of the weight body 210 and the center of the pile body 1 are on the same vertical line. Finally, the clamp 200 releases the clamping of the weight body 210, so that the weight body 210 falls freely and hits the top of the pile body 1, thereby improving the efficiency of high strain detection of the pile body 1, and around The several connecting rods 170 on the outside of the weight body 210 play a protective role for the freely falling weight body 210, and avoid the danger caused by the weight body 210 tipping over when falling as much as possible, and solve the problem that when the prior art performs high-strain detection on the foundation pile, it is usually necessary to hang the weight above the foundation pile through a crane and a hook, and then the weight falls freely and hits the top of the pile. However, since the weight hoisted by the crane is easy to shake, it is not convenient to position the weight above the foundation pile, which can easily affect the efficiency of the foundation pile quality detection.

[0039] Embodiment 2: This embodiment aims to solve the problem that it is inconvenient to make the heavy hammer body 210 repeatedly hammer the pile top, which easily affects the efficiency of pile quality inspection. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 5 , Figure 7 , Figure 8 , Fig. 9 , Fig.10 A hanging ring 211 is fixedly provided on the top of the weight body 210, and the clamp 200 includes a first clamping claw 201 and a second clamping claw 202. In the initial state, the first clamping claw 201 and the second clamping claw 202 are close to each other, and the hanging ring 211 is sleeved between the first clamping claw 201 and the second clamping claw 202, so as to clamp and lift the weight body 210; A shell 220 is provided at the lower side of the lifting plate 100, and a first telescopic member 221 is fixedly installed at the central position of the upper side of the lifting plate 100. The first telescopic member 221 is configured as an electric lifting rod or a hydraulic cylinder. The telescopic end of the first telescopic member 221 passes through the lifting plate 100 and is fixedly connected to the top of the shell 220. The upper ends of the first clamping claw 201 and the second clamping claw 202 are both slidably inserted in the shell 220, and the upper ends of the first clamping claw 201 and the second clamping claw 202 are both fixedly installed with a first slider 222. A first slide groove 223 for use with the first slider 222 is provided on the inner side of the shell 220, and the first slider 222 is slidably provided in the first slide groove 223. A second slider 224 is also provided on the inner side of the shell 220, and the second slider 224 is located between the two first sliders 222. A second slide groove 225 for use with the second slider 224 is provided on the inner side of the shell 220, and the second slider 224 is slidably provided in the second slide groove 225.

[0040] A push-pull rod 226 is arranged between the two first sliders 222 and the second slider 224, and the two ends of one push-pull rod 226 are rotatably connected to a first slider 222 and the second slider 224 respectively, and the two ends of the other push-pull rod 226 are rotatably connected to the other first slider 222 and the second slider 224 respectively. A second telescopic member 227 is installed on the inner side of the shell 220, and the second telescopic member 227 is arranged as an electric lifting rod. The telescopic end of the second telescopic member 227 is fixedly connected to a traction rope 228, and the end of the traction rope 228 is fixedly connected to the second slider 224. In the initial state, the telescopic end of the second telescopic member 227 is extended outward, and when the second telescopic member 227 is started, the telescopic end thereof is retracted and can be extended and restored through the control of the controller.

[0041] A second gear 230 is rotatably arranged inside the housing 220. A bearing 231 is provided in an interference sleeve at the end of the shaft of the second gear 230, and the bearing 231 is arranged as a damping bearing. When the inner ring and the outer ring of the damping bearing rotate relative to each other, there will be resistance. This is a technical means well known to technicians in this field and will not be described in detail here. The bearing 231 is installed on the inner side of the housing 220, the shaft of the second gear 230 is fixedly fitted with the inner ring of the bearing 231, and the inner wall of the housing 220 is fixedly fitted with the outer ring of the bearing 231. A first rack 232 is fixedly installed on the back side of the second slider 224, and a second rack 233 is slidably inserted at the bottom of the housing 220. The first rack 232 and the second rack 233 are respectively meshed with the two sides of the second gear 230, and a top plate 234 is fixedly installed on the bottom end of the second rack 233. The top plate 234 is located outside the housing 220, and the top plate 234 is located between the first clamping claw 201 and the second clamping claw 202.

[0042] In this embodiment: after the weight body 210 is calibrated, the telescopic end of the second telescopic member 227 retracts, and the second slider 224 is pulled upward by the traction rope 228, so that the push-pull rods 226 on both sides push the first sliders 222 on both sides to both sides respectively, thereby driving the first clamping claw 201 and the second clamping claw 202 to move to both sides respectively to open the clamp 200, release the clamping of the weight body 210, and make the weight body 210 fall freely and hit the top of the pile body 1, and then the telescopic end of the second telescopic member 227 is unfolded and restored again, and due to the damping resistance of the bearing 231, the second slider 224 is stationary relative to the housing 220, so that the traction rope 228 is relaxed; At the same time, the upwardly moved second slider 224 drives the first rack 232 to move upward, and the meshing of the first rack 232 and the second gear 230 drives the second gear 230 to rotate, and then the meshing of the second gear 230 and the second rack 233 causes the second rack 233 to drive the top plate 234 to descend. Subsequently, the first telescopic member 221 drives the shell 220 to descend, so that the opened clamp 200 is close to the hanging ring 211 on the upper side of the heavy hammer body 210, until the first clamping claw 201 and the second clamping claw 202 are respectively located on both sides of the hanging ring 211, and the top plate 234 is pressed down. The second gear 230 is engaged with the first gear 232 of the second gear 233 and the second gear 233, thereby driving the second slider 224 to move down and reset, so that the traction rope 228 is restored to a taut state, and the first clamping claw 201 and the second clamping claw 202 are closed to clamp the hanging ring 211 again, and the first telescopic member 221 drives the weight body 210 to rise and reset, so that the weight body 210 can repeatedly hammer the top of the pile body 1, thereby further improving the efficiency of pile quality detection.

[0043] Embodiment 3, this embodiment is intended to promote the solution of the problem that it is difficult to determine whether all the positioning plates 130 firmly clamp the pile body 1, it is difficult to determine whether the center of the heavy hammer body 210 is on the same vertical line as the center of the pile body 1, and thus it is difficult to ensure the accuracy of the calibration position of the heavy hammer body 210. This embodiment is an improvement made on the basis of embodiment 1. For details, please refer to Figure 1 , Figure 2 , Figure 3 , Figure 5 , Fig.11 and Fig.12 A protrusion 240 is slidably inserted on one side of the positioning plate 130 close to the pile body 1, and a switch 241 is provided on the inner side of the positioning plate 130. The switch 241 includes a first electric contact 2411 fixedly connected to the protrusion 240 and a second electric contact 2412 installed inside the positioning plate 130. An alarm 242 is fixedly installed on the outer side of the positioning ring 110. The side of the alarm 242 is electrically connected to a wire 243, and the end of the wire 243 is connected to the positive pole of the external power supply.

[0044] The outer side of the alarm 242 is also electrically connected to one of the first electrical contacts 2411 through the wire 243, and several switches 241 are connected in series through the wire 243 and connected to the negative pole of the external power supply, so that the alarm 242, several switches 241 and the external power supply form a series circuit.

[0045] In this embodiment: the positioning plate 130 drives the protrusion 240 to move inward synchronously. When the protrusion 240 abuts against the pile body 1, the protrusion 240 is pressed into the positioning plate 130, so that the positioning plate 130 drives the first electric contact piece 2411 to abut against the second electric contact piece 2412, so that a switch 241 is closed and energized. Similarly, when all the positioning plates 130 abut against the pile body 1, the pile body 1 can be clamped firmly. At this time, all the switches 241 are closed, so that the alarm 242 and the external power supply form a complete circuit loop, so that the alarm 242 sends an alarm to remind, ensuring that the center of the heavy hammer body 210 and the center of the pile body 1 are on the same vertical line, thereby ensuring the accuracy of the position calibration of the heavy hammer body 210.

[0046] 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.

[0047] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A pile quality inspection device, comprising a pile body (1), a hoisting plate (100), and a positioning ring (110) sleeved on the end of the pile body (1), characterized in that: An adjusting ring (120) is rotatably arranged at the lower side of the positioning ring (110), a positioning plate (130) is arranged between the positioning ring (110) and the adjusting ring (120), both sides of the positioning plate (130) are connected with rivet rods (140), a straight groove (150) is provided on the side of the positioning ring (110), an arc groove (160) is provided on the side of the adjusting ring (120), the two rivet rods (140) are slidably inserted into the straight groove (150) and the arc groove (160) respectively, and a connecting rod (140) is installed on the outer side of the positioning plate (130). A connecting rod (170), a slot (180) is provided on the side of the positioning ring (110), the bottom of the connecting rod (170) is slidably inserted into the slot (180), the top of each connecting rod (170) is provided with an insertion rod (190), the ends of each insertion rod (190) are slidably inserted into the side of the hanging plate (100), and a clamp (200) is provided on the lower side of the hanging plate (100), the clamp (200) is used to suspend a heavy hammer body (210), and the heavy hammer body (210) is used to hammer the top of the foundation pile body (1).

2. A pile quality inspection device according to claim 1, characterized in that: A cable (101) is installed on the upper side of the hoisting plate (100), and the upper end of the cable (101) is connected to the crane lifting arm.

3. A pile quality inspection device according to claim 1, characterized in that: The number of the positioning plates (130), the straight grooves (150), and the arc grooves (160) is set to be a plurality, and the plurality of positioning plates (130) are circumferentially equidistantly arranged between the positioning ring (110) and the adjustment ring (120), and the positioning plates (130) are all set to be arc-shaped plates; In an initial state, the positioning ring (110), the adjustment ring (120), and the inner ring of the positioning plate (130) are all located on the same annular surface, and the inner diameter of the positioning ring (110) is greater than the outer diameter of the foundation pile body (1).

4. A pile quality inspection device according to claim 1, characterized in that: A motor (161) is installed on the outside of the positioning plate (130), a first gear (162) is installed on the output shaft of the motor (161), a tooth groove (163) is provided on the side of the adjustment ring (120), and the first gear (162) meshes with the tooth groove (163).

5. The pile quality inspection device according to claim 1, characterized in that: A spring (191) is arranged inside the hanging plate (100), the number of the springs (191) is the same as the number of the insertion rods (190), one end of the spring (191) is connected to the insertion rod (190), and the other end of the spring (191) is connected to the inner wall of the hanging plate (100).

6. A pile quality inspection device according to claim 1, characterized in that: A hanging ring (211) is provided on the top of the weight body (210); the clamp (200) comprises a first clamping claw (201) and a second clamping claw (202); in an initial state, the first clamping claw (201) and the second clamping claw (202) are close to each other, and the hanging ring (211) is sleeved between the first clamping claw (201) and the second clamping claw (202); A shell (220) is arranged at the lower side of the hanging plate (100), and a first telescopic member (221) is installed at the upper side of the hanging plate (100). The telescopic end of the first telescopic member (221) passes through the hanging plate (100) and is connected to the shell (220). The upper ends of the first clamping claw (201) and the second clamping claw (202) are both slidably inserted in the shell (220). The upper ends of the first clamping claw (201) and the second clamping claw (202) are both installed with a first slider (222). The shell (220) A first slide groove (223) for use with the first slide block (222) is provided on the inner side, and the first slide block (222) is slidably arranged in the first slide groove (223). A second slide block (224) is also provided on the inner side of the housing (220), and the second slide block (224) is located between the two first slide blocks (222). A second slide groove (225) for use with the second slide block (224) is provided on the inner side of the housing (220), and the second slide block (224) is slidably arranged in the second slide groove (225).

7. A pile quality inspection device according to claim 6, characterized in that: A push-pull rod (226) is provided between the two first sliders (222) and the second sliders (224); two ends of one push-pull rod (226) are rotatably connected to one first slider (222) and the second slider (224), respectively; and two ends of another push-pull rod (226) are rotatably connected to another first slider (222) and the second slider (224), respectively. A second telescopic member (227) is installed inside the housing (220), a telescopic end of the second telescopic member (227) is connected to a traction rope (228), and an end of the traction rope (228) is connected to the second sliding block (224).

8. A pile quality inspection device according to claim 7, characterized in that: A second gear (230) is rotatably arranged inside the housing (220); a bearing (231) is sleeved on the end of the shaft of the second gear (230); the bearing (231) is mounted on the inner side of the housing (220); the shaft of the second gear (230) is in contact with the inner ring of the bearing (231); the inner wall of the housing (220) is in contact with the outer ring of the bearing (231); a first rack (232) is mounted on the side of the second slider (224); a second rack (233) is slidably inserted at the bottom of the housing (220); the first rack (232) and the second rack (233) are respectively meshed with two sides of the second gear (230); a top plate (234) is mounted on the bottom of the second rack (233); the top plate (234) is located outside the housing (220).

9. The pile quality inspection device according to claim 1, characterized in that: A protrusion (240) is slidably inserted on one side of the positioning plate (130) close to the pile body (1), and a switch (241) is arranged on the inner side of the positioning plate (130). The switch (241) comprises a first electrical contact (2411) connected to the protrusion (240) and a second electrical contact (2412) installed inside the positioning plate (130). An alarm (242) is installed on the outer side of the positioning ring (110), and a wire (243) is electrically connected to the side of the alarm (242), and the end of the wire (243) is connected to the positive pole of an external power supply.

10. A pile quality inspection device according to claim 9, characterized in that: The outer side of the alarm (242) is also electrically connected to one of the first electrical contacts (2411) via the wire (243), and a plurality of the switches (241) are connected in series via the wire (243) and connected to the negative pole of an external power source.

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