A bridge pier cofferdam construction device

Abstract

The present invention relates to the technical field of pile driving construction, and specifically discloses a bridge pier cofferdam construction device, comprising: a static pile driver, a pile driver clamp, and a verticality monitoring mechanism. The pile driver clamp is slidably arranged in the inner cavity of the static pile driver through a hydraulic system, and the verticality monitoring mechanism is arranged at the top of the pile driver clamp. This device effectively solves the problem of measurement error caused by pile body rebound during static pile driving construction in karst areas, significantly improves the accuracy of pile driving depth data, avoids the distortion problem of manual marking method and clamp stroke calculation, and at the same time, by dynamically monitoring the horizontality of the static driver, ensures that the verticality of the pile driving meets the specification requirements, prevents the pile body from being displaced, tilted, or broken, improves the bearing capacity and structural safety of the pile foundation, reduces the cost of construction rework and the risk of construction delay, and provides a more reliable technical guarantee for the construction of foundation engineering in karst areas.

Description

Technical Field

[0001] The invention relates to the technical field of pile driving construction, in particular to a bridge pier cofferdam construction device. Background Art

[0002] In the construction of bridge pier foundations, static pile driving technology is widely used in engineering construction in complex geological conditions such as karst areas due to its advantages such as low noise, low pollution and high construction efficiency. However, the geological structure of karst areas is complex, and there are adverse geological phenomena such as caves and cracks. As a result, the pile body is easily affected by the stress of the stratum and rebounds during the pile driving process, which seriously affects the accuracy of the pile driving depth measurement. Traditional pile driving depth measurement methods mainly rely on manual marking of the pile body's buried position or calculation through the stroke of the pile driver's clamp. Such methods do not consider the impact of pile body rebound on the measurement results, resulting in a deviation between the measured depth and the actual buried depth, which in turn affects the reliability of the pile foundation bearing capacity calculation and engineering design;

[0003] Furthermore, static pile drivers are prone to horizontal and vertical deviations during construction due to factors such as uneven foundation settlement and equipment vibration. Failure to promptly monitor and adjust the verticality of the pile driver can cause the pile to shift, tilt, or even break, seriously threatening the safety of the bridge structure. Existing verticality monitoring methods often rely on manual periodic measurements or single-point static monitoring, which cannot track the dynamic posture of the pile driver in real time and are therefore unable to meet high-precision construction requirements.

[0004] In summary, existing technologies for static pile driving in karst areas face two major technical bottlenecks: the lack of an effective mechanism for compensating for pile rebound, which leads to distorted pile depth measurements; and the lack of accurate verticality monitoring, which prevents dynamic feedback on changes in the pile driver's posture. Therefore, it is necessary to develop a protective device that can monitor pile depth in real time, automatically compensate for rebound errors, and dynamically adjust the verticality of the pile driver to improve the quality and safety of pile foundation construction in karst areas. Summary of the Invention

[0005] The purpose of the present invention is to provide a bridge pier cofferdam construction device to solve the problem in the prior art that the measured pile sinking depth deviates from the actual value, and errors are easily generated in the horizontality and verticality as the construction proceeds.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: A bridge pier cofferdam construction device, comprising: a static pile driver, a pile driver clamp, a verticality monitoring mechanism, a warning light and a driving depth monitoring mechanism, wherein the pile driver clamp is slidably arranged in the inner cavity of the static pile driver through a hydraulic system, the verticality monitoring mechanism is arranged at the top of the pile driver clamp, the number of the warning lights is four, and the four warning lights are respectively arranged at the four corners of the top of the pile driver clamp, the driving depth monitoring mechanism is arranged at the bottom end of the static pile driver, and the position of the driving depth monitoring mechanism corresponds to the position of the pile driver clamp.

[0007] Preferably, the verticality monitoring mechanism includes: a bracket, a rotating rod, a rocker arm, a counterweight ball and an offset angle monitoring assembly. There are two brackets, and the two brackets are respectively arranged on the left and right sides of the top of the pile driver clamp, and the two brackets are arranged at a 90-degree angle. There are two rotating rods, and the two ends of one of the rotating rods are rotatably arranged at the front and back middle tops of the inner cavity of one of the brackets through bearings, and the two ends of the other rotating rod are rotatably arranged at the left and right middle tops of the inner cavity of the other bracket through bearings. The top end of the rocker arm is fixedly sleeved on the middle part of the outer wall of the rotating rod, the counterweight ball is arranged at the bottom end of the rocker arm, and the offset angle monitoring assembly is arranged in the inner cavity of the bracket.

[0008] Preferably, the offset angle monitoring component includes: a first gear, a first slider, a rack, a first slide, a first guide rod and a press switch, the number of the first gears is four, the four first gears are respectively sleeved on the front and rear ends and the left and right ends of the outer walls of the two rotating rods, and locked by top screws, the number of the first slides is four, the four first slides are respectively arranged on the top ends of the left and right sides of the inner cavity of the two brackets and the top ends of the front and rear sides of the inner cavity, the number of the racks is two, the top left and right sides of one of the racks are provided with first slides along the front and rear directions, the top front and rear sides of the other rack are provided with first slides along the left and right directions, and the four first slides are respectively slidably adapted to be inserted Connected to the middle part of the inner cavity of the four first slide grooves, the two racks are respectively engaged with the four first gears, the number of the first guide rods is four, the front and rear ends of two of the first guide rods are respectively arranged on the front and rear sides of the inner cavity of two of the first slide grooves, and the left and right ends of the other two first guide rods are respectively arranged on the left and right sides of the inner cavity of the other two first slide grooves, the first slider is slidably connected to the outer wall of the first guide rod, the number of the push switches is four, and the four push switches are respectively arranged in the middle part of the top end of the front and rear sides of the inner cavity of the two brackets and the middle part of the top end of the left and right sides of the inner cavity, the position of the push switch corresponds to the position of the rack, and the four push switches are respectively electrically connected to the four warning lights.

[0009] Preferably, the distance between the first slider and the side wall of the inner cavity of the first sliding groove is greater than the distance between the rack and the push switch, ensuring that the rack can contact the push switch and press the push switch.

[0010] Preferably, the pressing depth monitoring mechanism includes: a second guide rod, a second slide groove, a sleeve, a second slider, a sleeve plate and a rubber roller, the number of the second guide rods is two, and the two second guide rods are respectively arranged on the front and rear sides of the bottom end of the static pile driver, the second guide rod located on the front side is rotatably arranged on the bottom end of the static pile driver through a bearing, the outer wall of the second guide rod located on the front side is provided with a plurality of second slide grooves equidistantly from left to right along the circumferential direction, the sleeve is slidably sleeved on the outer wall of the second guide rod located on the front side, the number of the second sliders is several, and the several second sliders are respectively The second slider is equidistantly arranged on the inner wall of the sleeve along the circumferential direction, and can be slidably adapted to be inserted into the inner cavity of the second slide groove corresponding to its position. There are two sleeves, one of which is rotatably sleeved on the left and right sides of the outer wall of the sleeve through a bearing, and the other sleeve is slidably sleeved on the outer wall of the second guide rod located on the rear side. The front and rear ends of the rubber roller are rotatably arranged on the inner middle part of the two sleeves through bearings respectively, and the front end of the rubber roller can be rotatably extended into the inner cavity of the sleeve located on the front side. The position of the rubber roller corresponds to the position of the pile driver clamp.

[0011] Preferably, the penetration depth monitoring mechanism also includes: a counting component, a positioning component and a moving component; the counting component is arranged on the front side of the static pile driver, the positioning component is arranged in the inner cavity of the counting component, and the moving component is arranged at the bottom end of the static pile driver, and the moving component can be used to drive the rubber roller to move.

[0012] Preferably, the counting assembly includes: a first bevel gear, a second bevel gear, a third bevel gear, a first connecting rod, a fourth bevel gear, a second gear, a second connecting rod, a third gear and a reading indication assembly, the first bevel gear is sleeved on the front side of the outer wall of the rubber roller and locked by a top screw, the first bevel gear is located in the inner cavity of the sleeve, the second bevel gear is sleeved on the middle part of the outer wall of the sleeve and locked by a top screw, the first bevel gear and the second bevel gear are meshed, the third bevel gear is sleeved on the right side of the outer wall of the second guide rod located on the front side and locked by a top screw, The first connecting rod is rotatably arranged on the front side of the bottom end of the static pile driver through a bearing, the fourth bevel gear is sleeved on the rear side of the outer wall of the first connecting rod and locked by a top screw, the fourth bevel gear and the third bevel gear are meshed, the second gear is sleeved on the front side of the outer wall of the first connecting rod and locked by a top screw, the rear end of the second connecting rod is rotatably arranged on the front side of the static pile driver through a bearing, the third gear is sleeved on the outer wall of the second connecting rod and locked by a top screw, the third gear is meshed with the second gear, and the reading indication assembly is arranged on the front side of the static pile driver.

[0013] Preferably, the reading indication assembly includes: a third connecting rod, a fourth gear, a fifth gear, a fourth connecting rod, a sleeve, an extrusion groove, a pointer, a slot and an indicator plate, the rear end of the third connecting rod is rotatably arranged on the front side of the static pile driver through a bearing, the rear end of the fourth connecting rod is rotatably arranged on the front side of the static pile driver through a bearing, a plurality of extrusion grooves are equidistantly provided on the front side of the outer wall of the fourth connecting rod along the circumferential direction, the sleeve is rotatably sleeved on the middle part of the outer wall of the fourth connecting rod through a bearing, a plurality of extrusion grooves are equidistantly provided on the front side of the outer wall of the sleeve along the circumferential direction, the number of the fourth gears is two, one of which is sleeved on the rear end of the outer wall of the third connecting rod side, and is locked by a top screw, the other of the fourth gear is sleeved on the rear side of the outer wall of the sleeve and is locked by a top screw, the fourth gear located on the outer wall of the third connecting rod is meshed with the third gear, the number of the fifth gears is two, one of the fifth gears is sleeved on the front side of the outer wall of the third connecting rod and is locked by a top screw, the other fifth gear is sleeved on the rear side of the outer wall of the fourth connecting rod and is locked by a top screw, the number of the pointers is two, and the two pointers are rotatably sleeved on the front side of the outer wall of the fourth connecting rod and the front side of the outer wall of the sleeve through bearings, the inner wall of the pointer is provided with a number of slots equidistantly along the circumferential direction, and the indicator plate is arranged on the front side of the static pile driver.

[0014] Preferably, the front end of the fourth connecting rod and the front end of the sleeve can both slidably extend out of the middle of the indicator disk, and the pointer is located in the inner cavity of the indicator disk.

[0015] Preferably, the two fifth gears are respectively engaged with the two fourth gears, and the number of teeth on the outer diameter of the fourth gears is an integer multiple of the number of teeth on the outer diameter of the fifth gears.

[0016] Preferably, the positioning assembly includes: a first spring and a locking ball, the first spring is embedded in the inner cavity of the extrusion groove, one end of the first spring is clamped to the inner wall of the extrusion groove, a part of the locking ball is slidably embedded in the inner cavity of the extrusion groove, the other part of the locking ball is adapted to be inserted into the inner cavity of the slot corresponding to its position, the other end of the first spring is clamped to the outer wall of the locking ball, and the length of the locking ball inserted in the inner cavity of the slot is less than its radius.

[0017] The bridge pier cofferdam construction device proposed by the present invention has the following beneficial effects:

[0018] 1. The present invention can lift the pile body through the static pile driver and insert the pile body into the pile driver clamp. The pile body can be clamped and fixed by the pile driver clamp, and the pile body is driven downward by the pile driver clamp using a hydraulic system to enable the pile body to be inserted into the ground.

[0019] 2. During use of the present invention, if the static pile driver is skewed, the pile driver holder will be skewed. When the pile driver holder is tilted to the outside, the bracket will be tilted. As a result, the weight of the counterweight ball will drive the rotating rod to rotate through the rocker arm. The rotation of the rotating rod can drive the first gear to rotate. The rotation of the first gear will cause the rack to slide. If the static pile driver is skewed at an angle that exceeds the specified skew angle of the static pile driver, the rack will be pressed to press the switch, causing the warning light electrically connected to the press switch to light up, thereby reminding the staff that the static pile driver is skewed and reminding the staff of the direction of the skew of the static pile driver.

[0020] 3. The present invention can push the rubber roller to move through the moving component, prompting the rubber roller to contact the pile body and to apply an appropriate extrusion force to the pile body, thereby increasing the friction between the rubber roller and the pile body. When the pile body is inserted downward into the ground, the rubber roller will drive the first bevel gear to rotate. The rotation of the first bevel gear can cooperate with the second bevel gear to prompt the sleeve to rotate. The rotation of the sleeve can utilize the cooperation between the second slider and the second slide groove to prompt the second guide rod to drive the third bevel gear to rotate. The rotation of the third bevel gear can cooperate with the fourth bevel gear to prompt the first connecting rod to drive the second gear to rotate. The rotation of the second gear can drive the third gear to rotate, so that the rotating third gear can cooperate with the fourth gear located on the outer wall of the third connecting rod to drive the fifth gear on its outer wall to rotate through the third connecting rod. Since the two fourth gears are respectively engaged with the two fifth gears, when the fourth gear on the outer wall of the third connecting rod and the fifth gear are engaged When the gears are turned synchronously, the fourth connecting rod can be driven to rotate by the fifth gear on the outer wall of the fourth connecting rod, and the casing can be driven to rotate by the fourth gear on the outer wall of the casing. The fourth connecting rod and the casing can be further used to drive the two pointers to rotate in the inner cavity of the indicator disk. Since the number of teeth on the outer diameter of the fourth gear is several integer multiples of the number of teeth on the outer diameter of the fifth gear, when the fifth gear on the outer wall of the fourth connecting rod drives the pointer on its outer wall to rotate one circle through the fourth connecting rod, the fourth gear on the outer wall of the casing will drive the pointer on its outer wall to rotate one scale on the indicator disk through the casing, so that the cooperation between the two pointers and the indicator disk can record the depth of the pile body pressed into the ground. When the pile body rebounds, the rubber roller will be prompted to rotate in the opposite direction under the action of the pile body, and then the two pointers can be prompted to rotate in the opposite direction, so that the length of the pile body rebound can be subtracted from the pile body insertion depth value recorded by the pointer, thereby improving the accuracy of the pile driving depth data.

[0021] 4. This device effectively solves the measurement error problem caused by pile rebound during the construction of bridge pier cofferdam foundations and static pile driving in karst areas, significantly improving the accuracy of pile depth data and avoiding the distortion problems of manual marking and clamp stroke calculation. At the same time, by dynamically monitoring the horizontality of the static press, it ensures that the verticality of the pile driving meets the specification requirements, prevents the pile body from being displaced, tilted or broken, improves the bearing capacity and structural safety of the pile foundation, reduces the cost of construction rework and the risk of construction delays, and provides more reliable technical support for the construction of foundation projects in karst areas. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0023] Figure 2 It is a structural diagram of a static pile driver;

[0024] Figure 3 It is a structural diagram of the verticality monitoring mechanism;

[0025] Figure 4 It is a structural diagram of the pressing depth monitoring mechanism;

[0026] Figure 5 This is an exploded view of the verticality monitoring mechanism;

[0027] Figure 6 This is an exploded view of the penetration depth monitoring mechanism;

[0028] Figure 7 for Figure 1 A magnified view of point A;

[0029] Figure 8 for Figure 5 Enlarged view of point B;

[0030] Figure 9 for Figure 6 Enlarged view of point C;

[0031] Figure 10 for Figure 6 Enlarged view of point D;

[0032] Figure 11 for Figure 6 Enlarged view of point E;

[0033] Figure 12 for Figure 6 Enlarged view of point F;

[0034] Figure 13 for Figure 6 Enlarged view of point G.

[0035] In the figure: 1. Static pile driver; 2. Pile driver clamp; 3. Verticality monitoring mechanism; 301. Bracket; 302. Rotating rod; 303. Swing rod; 304. Counterweight ball; 305. First gear; 306. First slider; 307. Rack; 308. First chute; 309. First guide rod; 310. Press switch; 4. Warning light; 5. Depth monitoring mechanism; 51. Second guide rod; 52. Second chute; 53. Sleeve; 54. Second slider; 55. Bushing; 56. Rubber roller; 57. First bevel gear; 58. Second bevel gear; 59. Third bevel gear Wheel; 510, first connecting rod; 511, fourth bevel gear; 512, second gear; 513, second connecting rod; 514, third gear; 515, third connecting rod; 516, fourth gear; 517, fifth gear; 518, fourth connecting rod; 519, sleeve; 520, extrusion groove; 521, first spring; 522, card ball; 523, pointer; 524, card slot; 525, indicator plate; 526, sleeve; 527, third guide rod; 528, annular pressure sensor; 529, pressing piece; 530, second spring; 531, push cylinder; 532, hydraulic cylinder. DETAILED DESCRIPTION

[0036] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. 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 making creative efforts are within the scope of protection of the present invention.

[0037] See also Figures 1-13 The present invention provides a technical solution for a bridge pier and cofferdam construction device, comprising: a static pile driver 1, a pile driver clamp 2, a verticality monitoring mechanism 3, a warning light 4, and a pressing depth monitoring mechanism 5. The pile driver clamp 2 is slidably arranged in the inner cavity of the static pile driver 1 through a hydraulic system. The pile driver clamp 2 is a prior art and will not be described in detail here. The pile driver clamp 2 is used to clamp and fix the pile body, and use the hydraulic system to press the pile body into the ground through the pile driver clamp 2. The verticality monitoring mechanism 3 is arranged on the pile driver. At the top of the machine clamp 2, the verticality monitoring mechanism 3 is used to monitor the verticality and horizontality of the static pile driver 1. There are four warning lights 4, which are respectively set at the four corners of the top of the pile driver clamp 2. When the static pile driver 1 is tilted too much, the warning lights 4 will sound an alarm. The pressing depth monitoring mechanism 5 is set at the bottom of the static pile driver 1. The position of the pressing depth monitoring mechanism 5 corresponds to the position of the pile driver clamp 2. The pressing depth monitoring mechanism 5 is used to record the depth of the pile body pressed into the ground in real time.

[0038] As a preferred solution, further, the verticality monitoring mechanism 3 includes: a bracket 301, a rotating rod 302, a swing rod 303, a counterweight ball 304 and an offset angle monitoring component. The number of the brackets 301 is two, and the two brackets 301 are respectively arranged on the left and right sides of the top of the pile driver clamp 2. The two brackets 301 are arranged at a 90-degree angle. The number of the rotating rods 302 is two, and the two ends of one of the rotating rods 302 are rotatably arranged at the top of the front and back middle parts of the inner cavity of one of the brackets 301 through bearings, and the two ends of the other rotating rod 302 are respectively rotatable at the front and back middle parts of the inner cavity of one of the brackets 301 through bearings. The bearings are rotatably arranged at the top of the middle part of the left and right sides of the inner cavity of another bracket 301. The top of the rocker arm 303 is fixedly sleeved on the middle part of the outer wall of the rotating rod 302. The counterweight ball 304 is arranged at the bottom end of the rocker arm 303. When the static pile driver 1 is tilted, the gravity of the counterweight ball 304 itself will cause the counterweight ball 304 to always point vertically downward, and then the rotating rod 302 can be driven to rotate through the rocker arm 303. The offset angle monitoring component is arranged in the inner cavity of the bracket 301, and the offset angle monitoring component is used to monitor the offset angle of the static pile driver 1.

[0039] More specifically, the offset angle monitoring assembly includes: a first gear 305, a first slider 306, a rack 307, a first slide 308, a first guide rod 309 and a press switch 310. The number of the first gears 305 is four, and the four first gears 305 are respectively sleeved on the front and rear ends and the left and right ends of the outer wall of the two rotating rods 302 and locked by the top screw. The number of the first sliders 306 is four, and the four first sliders 306 are respectively set at the top of the left and right sides of the inner cavity of the two brackets 301 and the top of the front and rear sides of the inner cavity. There are two racks 307, one of which has first slide grooves 308 on both sides of the top and the left and right sides along the front-to-back direction, and the other rack has first slide grooves 308 on both sides of the top and the left and right sides along the front and the left directions. The four first sliders 306 are slidably adapted to be inserted into the middle of the inner cavity of the four first slide grooves 308. The two racks 307 are respectively engaged with the four first gears 305. The racks 307 are used to squeeze the press switch 310. There are four first guide rods 309, two of which are The front and rear ends of the first guide rod 309 are respectively arranged on the front and rear sides of the inner cavity of two of the first slide grooves 308, and the left and right ends of the other two first guide rods 309 are respectively arranged on the left and right sides of the inner cavity of the other two first slide grooves 308. The first slider 306 is slidably connected to the outer wall of the first guide rod 309. The rack 307 can be supported by the cooperation between the first guide rod 309 and the first slider 306. There are four push switches 310, and the four push switches 310 are respectively arranged on the two brackets 301. In the middle of the top of the front and back sides of the inner cavity and the middle of the top of the left and right sides of the inner cavity, the position of the push switch 310 corresponds to the position of the rack 307. The four push switches 310 are electrically connected to the four warning lights 4 respectively. By squeezing the push switches 310, the warning lights 4 electrically connected to them can be prompted to light up. The distance between the first slider 306 and the inner cavity side wall of the first slide groove 308 is greater than the distance between the rack 307 and the push switch 310, ensuring that the rack 307 can contact the push switch 310 and press the push switch 310.

[0040] As a preferred solution, further, the pressing depth monitoring mechanism 5 includes: a second guide rod 51, a second slide groove 52, a sleeve 53, a second slider 54, a sleeve plate 55, a rubber roller 56, a counting component, a positioning component and a moving component. The number of the second guide rods 51 is two, and the two second guide rods 51 are respectively arranged on the front and rear sides of the bottom end of the static pile driver 1. The second guide rod 51 located on the front side is rotatably arranged on the bottom end of the static pile driver 1 through a bearing. The outer wall of the second guide rod 51 located on the front side is provided with a plurality of second slide grooves 52 equidistantly from left to right along the circumferential direction. The second guide rod 51 is used to support the rubber roller 56, and the sleeve 53 is slidably sleeved on the outer wall of the second guide rod 51 located on the front side. The number of the second sliders 54 is several, and the plurality of second sliders 54 are respectively arranged on the inner wall of the sleeve 53 equidistantly along the circumferential direction. The second slider 54 is slidably adapted to be inserted into the inner cavity of the second slide groove 52 corresponding to its position. When the sleeve 53 rotates The cooperation between the second slider 54 and the second slide groove 52 can prompt the second guide rod 51 located on the front side to rotate synchronously. There are two sleeve plates 55, one of which is rotatably sleeved on the left and right sides of the outer wall of the sleeve 53 through bearings, and the other sleeve plate 55 is slidably sleeved on the outer wall of the second guide rod 51 located on the rear side. The front and rear ends of the rubber roller 56 are rotatably arranged on the inner middle part of the two sleeve plates 55 through bearings, and the front end of the rubber roller 56 can rotatably extend into the inner cavity of the sleeve plate 55 located on the front side. The position of the rubber roller 56 corresponds to the position of the pile driver clamp 2. When the pile body moves downward or upward, the friction between the pile body and the rubber roller 56 can be used to prompt the rubber roller 56 to rotate. The counting component is arranged on the front side of the static pile driver 1, the positioning component is arranged in the inner cavity of the counting component, and the moving component is arranged at the bottom end of the static pile driver 1. The moving component can drive the rubber roller 56 to move.

[0041] More specifically, the counting assembly includes: a first bevel gear 57, a second bevel gear 58, a third bevel gear 59, a first connecting rod 510, a fourth bevel gear 511, a second gear 512, a second connecting rod 513, a third gear 514 and a reading indication assembly. The first bevel gear 57 is sleeved on the front side of the outer wall of the rubber roller 56 and is locked by a top screw. The first bevel gear 57 is located in the inner cavity of the sleeve 55. The second bevel gear 58 is sleeved on the middle part of the outer wall of the sleeve 53 and is locked by a top screw. The first bevel gear 57 and the second bevel gear 58 are meshed. The third bevel gear 59 is sleeved on the right side of the outer wall of the second guide rod 51 located on the front side and is locked by a top screw. Locking, the first connecting rod 510 is rotatably arranged on the front side of the bottom end of the static pile driver 1 through a bearing, the fourth bevel gear 511 is sleeved on the rear side of the outer wall of the first connecting rod 510 and locked by a top screw, the fourth bevel gear 511 and the third bevel gear 59 are meshed, the second gear 512 is sleeved on the front side of the outer wall of the first connecting rod 510 and locked by a top screw, the rear end of the second connecting rod 513 is rotatably arranged on the front side of the static pile driver 1 through a bearing, the third gear 514 is sleeved on the outer wall of the second connecting rod 513 and locked by a top screw, the third gear 514 and the second gear 512 are meshed, and the reading indication assembly is arranged on the front side of the static pile driver 1.

[0042] More specifically, the reading indicator assembly includes: a third connecting rod 515, a fourth gear 516, a fifth gear 517, a fourth connecting rod 518, a sleeve 519, an extrusion groove 520, a pointer 523, a slot 524 and an indicator plate 525. The rear end of the third connecting rod 515 is rotatably arranged on the front side of the static pile driver 1 through a bearing, and the rear end of the fourth connecting rod 518 is rotatably arranged on the front side of the static pile driver 1 through a bearing. A plurality of extrusion grooves 520 are opened on the front side of the outer wall of the fourth connecting rod 518 at equal intervals along the circumferential direction. 19 is rotatably sleeved on the middle part of the outer wall of the fourth connecting rod 518 through a bearing. A plurality of extrusion grooves 520 are opened on the front side of the outer wall of the sleeve 519 at equal intervals along the circumferential direction. The number of the fourth gear 516 is two, one of which is sleeved on the rear side of the outer wall of the third connecting rod 515 and locked by a top screw. The other fourth gear 516 is sleeved on the rear side of the outer wall of the sleeve 519 and locked by a top screw. The fourth gear 516 located on the outer wall of the third connecting rod 515 is meshed with the third gear 514. The number of the fifth gear 517 is There are two of them, one of which is a fifth gear 517, which is sleeved on the front side of the outer wall of the third connecting rod 515 and locked by a top screw. The other fifth gear 517 is sleeved on the rear side of the outer wall of the fourth connecting rod 518 and locked by a top screw. The two fifth gears 517 are respectively engaged with the two fourth gears 516. The number of teeth on the outer diameter of the fourth gear 516 is an integer multiple of the number of teeth on the outer diameter of the fifth gear 517. There are two pointers 523, which are respectively rotatably sleeved on the front side of the outer wall of the fourth connecting rod 518 through bearings. On the front side of the outer wall of the fourth connecting rod 518 and the sleeve 519, a plurality of slots 524 are opened on the inner wall of the pointer 523 at equal intervals along the circumferential direction. When the fourth connecting rod 518 and the sleeve 519 rotate, the pointer 523 can be driven to rotate. The indicator disk 525 is arranged on the front side of the static pile driver 1. The front end of the fourth connecting rod 518 and the front end of the sleeve 519 can be slidably extended out of the middle part of the indicator disk 525. The pointer 523 is located in the inner cavity of the indicator disk 525. The cooperation between the pointer 523 and the indicator disk 525 can record the depth of the pile body inserted into the ground.

[0043] More specifically, the positioning assembly includes: a first spring 521 and a locking ball 522. The first spring 521 is embedded in the inner cavity of the extrusion groove 520. One end of the first spring 521 is clamped to the inner wall of the extrusion groove 520. The first spring 521 is a rotation spring. It undergoes elastic deformation after being squeezed or stretched by external force, and returns to its initial state after the external force is removed. The first spring 521 is used here to squeeze the locking ball 522 into the inner cavity of the locking groove 524. A part of the locking ball 522 is slidably embedded in the inner cavity of the extrusion groove 520, and the other part of the locking ball 522 is adapted to be inserted into the inner cavity of the locking groove 524 corresponding to its position. The other end of the first spring 521 is clamped to the outer wall of the locking ball 522. The length of the locking ball 522 inserted in the inner cavity of the locking groove 524 is less than its radius. The cooperation between the locking ball 522 and the locking groove 524 can be used to position the pointer 523.

[0044] More specifically, the moving assembly includes: a sleeve 526, a third guide rod 527, an annular pressure sensor 528, a pressing plate 529, a second spring 530, a push cylinder 531 and a hydraulic cylinder 532. The front and rear sides of the sleeve 526 are rotatably sleeved on the front and rear sides of the outer wall of the rubber roller 56 through bearings. The left end of the third guide rod 527 is arranged in the middle of the left side of the inner cavity of the sleeve 526. The annular pressure sensor 528 is arranged on the left side of the inner cavity of the sleeve 526. The annular pressure sensor 528 is a prior art and will not be described in detail here. The annular pressure sensor 528 is used here to record the extrusion force applied to it by the pressing plate 529, so as to judge the extrusion force applied to the pile body by the rubber roller 56. The pressing plate 529 is slidably sleeved on the outer wall of the third guide rod 527. 529 is in contact with the annular pressure sensor 528, the second spring 530 is sleeved on the outer wall of the third guide rod 527, one end of the second spring 530 is clamped on the outer wall of the pressing plate 529, the second spring 530 is a rotary spring, which undergoes elastic deformation when squeezed or stretched by external force, and returns to its initial state after the external force is removed. The second spring 530 is used here to squeeze the pressing plate 529, the push cylinder 531 is slidably sleeved on the outer wall of the third guide rod 527, the other end of the second spring 530 is clamped on the left side of the push cylinder 531, the hydraulic cylinder 532 is arranged at the bottom end of the static pile driver 1, and the push cylinder 531 is arranged at the left end of the hydraulic cylinder 532. The hydraulic cylinder 532 is a prior art and will not be described in detail here. The hydraulic cylinder 532 is used here to push the rubber roller 56 to move.

[0045] The detailed connection means are well-known technologies in this field. The following mainly introduces the working principle and process. The specific operations are as follows.

[0046] When in use, the static pile driver 1 is moved to the specified position, and the horizontality and verticality of the static pile driver 1 are judged by observing whether the warning light 4 is on. When the horizontality and verticality of the static pile driver 1 are unqualified, the static pile driver 1 will drive the pile driver clamp 2 to tilt, and then the pile driver clamp 2 will drive the bracket 301 to tilt. Since the center of gravity of the counterweight ball 304 is always downward, the weight of the counterweight ball 304 will drive the rotating rod 302 to rotate through the swing rod 303. The rotation of the rotating rod 302 will drive the first gear 305 to rotate. The rotation of the first gear 305 can cause the rack 307 to slide. Since the horizontality and verticality of the static pile driver 1 are unqualified at this time, the static pile driver 1 When the tilt angle is greater than the allowable tilt angle, the rack 307 will be driven to move under the action of the first gear 305, and one of the racks 307 will be used to squeeze the corresponding push switch 310, or the two racks 307 will be used to squeeze the corresponding push switches 310 respectively, so that the warning light 4 electrically connected to the squeezed push switch 310 can be illuminated, thereby reminding the staff that the static pile driver 1 is tilted, and the tilt angle of the static pile driver 1 can be judged by observing the illuminated warning light 4. The angle of the static pile driver 1 can be adjusted by the hydraulic system of the static pile driver 1 until the warning light 4 goes out. At this time, the static pile driver 1 is used to lift the pile body and insert it into the pile driver clamp 2, so as to use The pile body is clamped and fixed with the pile driver clamp 2. At this time, the hydraulic cylinder 532 is started, and the hydraulic cylinder 532 is used to push the pressing piece 529 and the sleeve frame 526 through the push cylinder 531 and the second spring 530 to drive the rubber roller 56 to move to the left until the outer wall of the rubber roller 56 contacts the outer wall of the pile body. The hydraulic cylinder 532 is continued to be used to push the push cylinder 531 to move to the left. Since the pile body can block the rubber roller 56, the push cylinder 531 moves to the left to squeeze the second spring 530 to cause elastic deformation. As the elastic deformation of the second spring 530 increases, the squeezing force applied by the second spring 530 to the pressing piece 529 increases, thereby increasing the squeezing force applied by the pressing piece 529 to the annular pressure sensor 528. By reading the annular pressure sensor 528, the annular pressure sensor 528 can be pressed. The value displayed by the sensor 528 can be used to determine the squeezing force applied by the rubber roller 56 to the pile body. Until the annular pressure sensor 528 displays an appropriate value, the hydraulic cylinder 532 is closed, thereby increasing the friction between the rubber roller 56 and the pile body, causing the pile body to move up and down, which can drive the rubber roller 56 to rotate. The hydraulic system is used to drive the pile driver clamp 2 to move downward, so that the pile body can be inserted into the ground. As the construction progresses, it is observed in real time whether the warning light 4 is on. If the warning light 4 is on, the angle of the static pile driver 1 can be adjusted in real time to ensure the verticality and horizontality of the static pile driver 1 during the construction process. When the pile body is inserted downward into the ground, the rubber roller 56 will drive the first bevel gear 57 to rotate.The rotation of the first bevel gear 57 can cooperate with the second bevel gear 58 to drive the sleeve 53 to rotate. The rotation of the sleeve 53 can use the cooperation between the second slider 54 and the second slide groove 52 to drive the second guide rod 51 to drive the third bevel gear 59 to rotate. The rotation of the third bevel gear 59 can cooperate with the fourth bevel gear 511 to drive the first connecting rod 510 to drive the second gear 512 to rotate. The rotation of the second gear 512 can drive the third gear 514 to rotate. The rotating third gear 514 can cooperate with the fourth gear 516 located on the outer wall of the third connecting rod 515 to drive the fifth gear 517 on its outer wall to rotate through the third connecting rod 515. The two fourth gears 516 are respectively engaged with the two fifth gears 517, and then when the fourth gear 516 and the fifth gear 517 on the outer wall of the third connecting rod 515 rotate synchronously, the fourth connecting rod 518 can be driven to rotate by the fifth gear 517 on the outer wall of the fourth connecting rod 518, and the sleeve 519 can be driven to rotate by the fourth gear 516 on the outer wall of the sleeve 519. Further, the fourth connecting rod 518 and the sleeve 519 can be used to drive the two pointers 523 to rotate in the inner cavity of the indicator plate 525. Since the number of teeth on the outer diameter of the fourth gear 516 is several integer multiples of the number of teeth on the outer diameter of the fifth gear 517, when the fourth gear 516 on the outer wall of the fourth connecting rod 518 is rotated, the outer diameter of the fourth gear 516 is meshed with the fifth gear 517. When the fifth gear 517 drives the pointer 523 on its outer wall to rotate one circle through the fourth connecting rod 518, it will prompt the fourth gear 516 on the outer wall of the sleeve 519 to drive the pointer 523 on its outer wall to rotate one scale on the indicator disk 525 through the sleeve 519, so that the depth of the pile body pressed into the ground can be recorded by the cooperation between the two pointers 523 and the indicator disk 525. When the pile body rebounds, the rubber roller 56 will be prompted to rotate in the opposite direction under the action of the pile body, and then the two pointers 523 will be prompted to rotate in the opposite direction, so that the length of the pile body rebound can be subtracted from the pile body insertion depth value recorded by the pointer 523, thereby improving the accuracy of the pile depth data. After the pile construction is completed, when the reading of the pointer 523 needs to be reset, one hand holds the fourth gear 516 or the fifth gear 517 on the outer wall of the third connecting rod 515 to prevent the fourth connecting rod 518 and the sleeve 519 from rotating. The other hand rotates the pointer 523. The rotation of the pointer 523 can use the inner wall of the card slot 524 to squeeze the card ball 522 to move into the inner cavity of the extrusion groove 520, and squeeze the first spring 521 to cause elastic deformation until the card ball 522 completely leaves the inner cavity of the card slot 524. After the pointer 523 is rotated and reset, the elastic force of the first spring 521 can push the card ball 522 into the inner cavity of the card slot 524 corresponding to its current position.

[0047] In summary, this device effectively solves the measurement error problem caused by pile rebound during static pile construction in karst areas, significantly improves the accuracy of pile depth data, and avoids the distortion problem of manual marking method and clamp stroke calculation. At the same time, by dynamically monitoring the horizontality of the static press, it ensures that the verticality of the pile meets the specification requirements, prevents the pile body from being displaced, tilted or broken, improves the bearing capacity and structural safety of the pile foundation, reduces the construction rework cost and the risk of construction delay, and provides more reliable technical support for the construction of foundation projects in karst areas.

[0048] While 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 these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A bridge pier cofferdam construction device, characterized in that: include: Static pile driver (1); A pile driver clamp (2), the pile driver clamp (2) being slidably arranged in the inner cavity of the static pile driver (1) via a hydraulic system; A verticality monitoring mechanism (3), the verticality monitoring mechanism (3) being arranged at the top end of the pile driver clamp (2); Warning lights (4), the number of the warning lights (4) is four, and the four warning lights (4) are respectively arranged at the four corners of the top end of the pile driver clamp (2); A pressing depth monitoring mechanism (5), the pressing depth monitoring mechanism (5) is arranged at the bottom end of the static pile driver (1), and the position of the pressing depth monitoring mechanism (5) corresponds to the position of the pile driver clamp (2); The verticality monitoring mechanism (3) comprises: Brackets (301), the number of the brackets (301) is two, and the two brackets (301) are respectively arranged on the left and right sides of the top end of the pile driver clamp (2), and the two brackets (301) are arranged at an angle of 90 degrees; Rotating rods (302), the number of the rotating rods (302) is two, the two ends of one of the rotating rods (302) are rotatably arranged at the top of the front and back middle parts of the inner cavity of one of the brackets (301) through bearings, and the two ends of the other rotating rod (302) are rotatably arranged at the top of the left and right middle parts of the inner cavity of the other bracket (301) through bearings; A swing rod (303), the top end of which is fixedly sleeved on the middle portion of the outer wall of the rotating rod (302); A counterweight ball (304), the counterweight ball (304) being arranged at the bottom end of the pendulum rod (303); a deviation angle monitoring component, the deviation angle monitoring component being arranged in the inner cavity of the bracket (301); The pressing depth monitoring mechanism (5) comprises: A second guide rod (51), the number of the second guide rods (51) is two, and the two second guide rods (51) are respectively arranged at the front and rear sides of the bottom end of the static pile driver (1), the second guide rod (51) located at the front side is rotatably arranged at the bottom end of the static pile driver (1) through a bearing, and the outer wall of the second guide rod (51) located at the front side is provided with a plurality of second sliding grooves (52) equidistantly from left to right along the circumferential direction; a sleeve (53), wherein the sleeve (53) is slidably sleeved on the outer wall of the second guide rod (51) located at the front side; A second slider (54), the number of the second sliders (54) is several, and the several second sliders (54) are respectively arranged on the inner wall of the sleeve (53) at equal intervals along the circumferential direction, and the second sliders (54) are slidably adapted to be inserted into the inner cavity of the second slide groove (52) corresponding to their positions; A sleeve plate (55), wherein the number of the sleeve plates (55) is two, wherein one of the sleeve plates (55) is rotatably sleeved on the left and right sides of the outer wall of the sleeve (53) through a bearing, and the other sleeve plate (55) is slidably sleeved on the outer wall of the second guide rod (51) located at the rear side; A rubber roller (56), wherein the front and rear ends of the rubber roller (56) are rotatably arranged at the inner middle parts of the two sleeve plates (55) through bearings, and the front end of the rubber roller (56) is rotatably extended into the inner cavity of the sleeve plate (55) located at the front side, and the position of the rubber roller (56) corresponds to the position of the pile driver clamp (2); A counting assembly, the counting assembly being arranged on the front side of the static pile driver (1); A positioning component, the positioning component is arranged in the inner cavity of the counting component; A moving component is provided at the bottom end of the static pile driver (1), and the moving component can be used to drive the rubber roller (56) to move.

2. A bridge pier cofferdam construction device according to claim 1, characterized in that: The deviation angle monitoring component includes: First gears (305), the number of the first gears (305) is four, and the four first gears (305) are respectively sleeved on the front and rear ends and the left and right ends of the outer walls of the two rotating rods (302) and locked by means of top screws; First sliders (306), the number of the first sliders (306) is four, and the four first sliders (306) are respectively arranged at the top ends of the left and right sides of the inner cavity and the top ends of the front and back sides of the inner cavity of the two brackets (301); Rack (307), the number of the racks (307) is two, the top left and right sides of one of the racks (307) are both provided with first slide grooves (308) along the front-back direction, the top front and back sides of the other rack (307) are both provided with first slide grooves (308) along the left-right direction, the four first sliders (306) are respectively slidably adapted to be inserted into the middle of the inner cavity of the four first slide grooves (308), and the two racks (307) are respectively engaged with the four first gears (305); First guide rods (309), the number of the first guide rods (309) is four, wherein the front and rear ends of two of the first guide rods (309) are respectively arranged on the front and rear sides of the inner cavities of two of the first chutes (308), and the left and right ends of the other two first guide rods (309) are respectively arranged on the left and right sides of the inner cavities of the other two first chutes (308), and the first slider (306) is slidably sleeved on the outer wall of the first guide rods (309); Push switches (310), the number of the push switches (310) is four, and the four push switches (310) are respectively arranged at the middle of the top ends of the front and rear sides of the inner cavity and the middle of the top ends of the left and right sides of the inner cavity of the two brackets (301), the position of the push switches (310) corresponds to the position of the rack (307), and the four push switches (310) are respectively electrically connected to the four warning lights (4).

3. A bridge pier cofferdam construction device according to claim 2, characterized in that: The distance between the first slider (306) and the inner cavity side wall of the first slide groove (308) is greater than the distance between the rack (307) and the push switch (310), ensuring that the rack (307) can contact the push switch (310) and press the push switch (310).

4. A bridge pier cofferdam construction device according to claim 2, characterized in that: The counting component includes: a first bevel gear (57), the first bevel gear (57) being sleeved on the front side of the outer wall of the rubber roller (56) and being locked by a top screw, the first bevel gear (57) being located in the inner cavity of the sleeve plate (55); A second bevel gear (58), wherein the second bevel gear (58) is sleeved on the middle portion of the outer wall of the sleeve (53) and is locked by a top screw, and the first bevel gear (57) and the second bevel gear (58) are meshed with each other; A third bevel gear (59), the third bevel gear (59) being sleeved on the right side of the outer wall of the second guide rod (51) located at the front side and being locked by a top screw; A first connecting rod (510), the first connecting rod (510) being rotatably arranged on the front side of the bottom end of the static pile driver (1) via a bearing; a fourth bevel gear (511), the fourth bevel gear (511) being sleeved on the rear side of the outer wall of the first connecting rod (510) and locked by a top screw, the fourth bevel gear (511) being meshed with the third bevel gear (59); A second gear (512), the second gear (512) is sleeved on the front side of the outer wall of the first connecting rod (510) and is locked by a top screw; a second connecting rod (513), the rear end of the second connecting rod (513) being rotatably arranged on the front side of the static pile driver (1) via a bearing; a third gear (514), the third gear (514) being sleeved on the outer wall of the second connecting rod (513) and locked by a top screw, the third gear (514) being meshed with the second gear (512); A reading indication component is provided on the front side of the static pile driver (1).

5. A bridge pier cofferdam construction device according to claim 4, characterized in that: The reading indication component includes: a third connecting rod (515), the rear end of the third connecting rod (515) being rotatably arranged on the front side of the static pile driver (1) via a bearing; A fourth connecting rod (518), the rear end of the fourth connecting rod (518) being rotatably arranged on the front side of the static pile driver (1) via a bearing, and a plurality of extrusion grooves (520) being equidistantly provided on the front side of the outer wall of the fourth connecting rod (518); A sleeve (519), the sleeve (519) being rotatably sleeved on the middle portion of the outer wall of the fourth connecting rod (518) via a bearing, and a plurality of extrusion grooves (520) being equidistantly formed on the front side of the outer wall of the sleeve (519); A fourth gear (516), wherein the number of the fourth gears (516) is two, wherein one of the fourth gears (516) is sleeved on the rear side of the outer wall of the third connecting rod (515) and is locked by a top screw, and the other fourth gear (516) is sleeved on the rear side of the outer wall of the sleeve (519) and is locked by a top screw, and the fourth gear (516) located on the outer wall of the third connecting rod (515) is meshed with the third gear (514); A fifth gear (517), wherein the number of the fifth gears (517) is two, wherein one of the fifth gears (517) is sleeved on the front side of the outer wall of the third connecting rod (515) and is locked by a top screw, and the other fifth gear (517) is sleeved on the rear side of the outer wall of the fourth connecting rod (518) and is locked by a top screw; Pointers (523), the number of the pointers (523) is two, the two pointers (523) are rotatably sleeved on the front side of the outer wall of the fourth connecting rod (518) and the front side of the outer wall of the sleeve (519) through bearings, and the inner wall of the pointer (523) is provided with a plurality of slots (524) at equal intervals along the circumferential direction; An indicator plate (525) is provided on the front side of the static pile driver (1).

6. A bridge pier cofferdam construction device according to claim 5, characterized in that: The front end of the fourth connecting rod (518) and the front end of the sleeve (519) can both slidably extend out of the middle of the indicator disk (525), and the pointer (523) is located in the inner cavity of the indicator disk (525).

7. A bridge pier cofferdam construction device according to claim 6, characterized in that: The two fifth gears (517) are respectively meshed with the two fourth gears (516), and the number of outer diameter teeth of the fourth gear (516) is a multiple of the number of outer diameter teeth of the fifth gear (517).

8. A bridge pier cofferdam construction device according to claim 7, characterized in that: The positioning component includes: a first spring (521), wherein the first spring (521) is embedded in the inner cavity of the extrusion groove (520), and one end of the first spring (521) is clamped to the inner wall of the extrusion groove (520); A locking ball (522) is provided, wherein a portion of the locking ball (522) is slidably embedded in the inner cavity of the extrusion groove (520), and another portion of the locking ball (522) is adapted to be inserted into the inner cavity of the locking groove (524) corresponding to its position. The other end of the first spring (521) is engaged with the outer wall of the locking ball (522), and the length of the locking ball (522) inserted into the inner cavity of the locking groove (524) is less than its radius.

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