Pile foundation engineering reinforcement cage anti-alignment deviation device and using method thereof

Abstract

The invention relates to the technical field of pile foundation engineering, and discloses a pile foundation engineering reinforcement cage anti-alignment deviation device which comprises a top base and a bottom base which are of an annular structure and used for being installed on the upper edge and the bottom of a pile hole correspondingly. The sliding rails are arranged in the axis direction of the pile hole, the two ends of each sliding rail are fixedly connected with the top base and the bottom base correspondingly, and the sliding rails are circumferentially arranged at intervals in the axis direction of the pile hole; the clamping mechanism is used for being detachably connected with the reinforcement cage; and the unlocking pieces are fixedly connected to the bottom base, correspond to the sliding rails one to one and are used for driving the clamping assembly to be disconnected from the reinforcement cage and driving the clamping base and the clamping assembly to move in the direction away from the axis of the pile hole. In addition, the invention further discloses a using method of the pile foundation engineering reinforcement cage counterpoint deviation preventing device. According to the steel reinforcement cage locking and unlocking device, a steel reinforcement clamping head depending on electric control in the prior art is abandoned, a pure mechanical clamping and unlocking mechanism is adopted, and locking and unlocking operation of a steel reinforcement cage is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of pile foundation engineering, and in particular to a device for preventing a reinforcement cage from misaligning and deviating in a pile foundation engineering and a method for using the device. Background Art

[0002] In the pile foundation construction process, the precise positioning of the steel cage is the core element to ensure that the pile foundation has sufficient bearing capacity and structural stability. In the traditional construction process, the steel cage often deviates due to factors such as deviations during the lifting process, errors in the positioning of the hole, or uneven settlement of the soil layer, which in turn has an adverse effect on the verticality of the pile foundation. At present, most of the existing technical means use manual adjustments based on naked eye observation, or use simple guide frames to assist in positioning operations, but such methods have many obvious defects: the efficiency of manual adjustment is extremely low, and it is difficult to ensure high precision; the fixing performance of the guide device is poor, and it is impossible to achieve adaptive adjustment during the dynamic process of the steel cage sinking.

[0003] In view of the above technical difficulties, a series of devices for preventing the alignment and displacement of steel cages in pile foundation projects have emerged in the prior art, aiming to assist in achieving accurate alignment of steel cages. For example, the patent with publication number CN112459073A discloses an anti-alignment and displacement mechanism for the installation of steel cages in pile foundation projects applied to the field of housing construction. The mechanism mainly includes a positioning base, at least two support rods with a telescopic function, a fixing frame and a cable in a one-to-one correspondence with the support rods. Among them, the bottom of the support rod is firmly connected to the positioning base, the fixing frame is connected with a fixing sleeve that can be movably sleeved on the top of the support rod, and the two ends of the cable are respectively connected to the corresponding support rods. A positioning sleeve is arranged above the positioning base, and the outer wall of the positioning sleeve is connected with a sliding sleeve that can be slidably sleeved on each cable, and the inner wall of the positioning sleeve is provided with a plurality of steel bar clamping heads that can move along its radial direction, and the steel bar clamping head has a steel bar fixing groove facing the center of the sliding sleeve. This mechanism can quickly and efficiently complete the alignment and hoisting operations of the steel cage, and effectively avoid damage caused by the displacement of the steel cage.

[0004] However, in this type of anti-alignment and displacement device for steel cages, a steel bar clamping head is generally used to realize the clamping operation of the steel bars. Most of the steel bar clamping heads currently used rely on electrical structures such as telescopic motors for control, which inevitably requires additional auxiliary structures such as batteries and wires. In actual pile foundation construction scenarios, the construction site environment is complex, such as muddy sites and narrow spaces, which makes the layout of wires extremely inconvenient, prone to problems such as wire wear and short circuits, and seriously affects the stability of power supply. At the same time, factors such as electromagnetic interference, humid environments, and mechanical vibrations at the construction site can also damage electrical components, leading to frequent equipment failures. Moreover, when the equipment suddenly fails, the installation of the steel cage will be forced to be interrupted due to the inability to unlock it through the mechanical structure, delaying the construction progress. In addition, additional electrical equipment and auxiliary structures not only increase the cost of the device, but also increase the difficulty and cost of equipment maintenance.

[0005] In summary, this method, which relies on electric control and cannot be unlocked mechanically, has many obvious defects, and it is urgent to propose a more reliable and efficient solution to meet the actual needs of pile foundation construction. Summary of the invention

[0006] The present invention aims to provide a device for preventing the displacement of a reinforcement cage in a pile foundation project and a method for using the device to overcome the above-mentioned shortcomings.

[0007] In order to achieve the above-mentioned object, the first aspect of the present invention provides a device for preventing the displacement of a reinforcement cage in a pile foundation engineering, comprising:

[0008] A top base and a bottom base in a ring-shaped structure and used to be installed on the upper edge and the bottom of the pile hole respectively;

[0009] A plurality of slide rails are arranged along the axis direction of the pile hole, and the two ends are respectively fixedly connected to the top base and the bottom base, and the plurality of slide rails are arranged at intervals along the axis direction of the pile hole;

[0010] The clamping mechanism comprises a sliding seat, a clamping seat and a clamping assembly arranged in a one-to-one correspondence, the sliding seat is slidably connected to the slide rail in a one-to-one correspondence, the clamping seat is slidably connected to the sliding seat along the radial direction of the pile hole, the clamping seat is connected to the clamping assembly at one end away from the sliding seat, and the clamping assembly is used to be detachably connected to the steel cage; and

[0011] A plurality of unlocking members are fixedly connected to the bottom base and are arranged one by one corresponding to the plurality of slide rails. The unlocking members are used to drive the clamping assembly to release the connection with the steel cage and drive the clamping seat and the clamping assembly to move away from the axis of the pile hole.

[0012] Furthermore, the clamping assembly comprises:

[0013] A driving rod slidingly passing through the clamping seat in the radial direction of the pile hole;

[0014] Two clamping claws are used to be detachably connected to the steel cage and one end of which is hinged on the clamping seat. When the driving rod moves away from or close to the axis direction of the pile hole, the other ends of the two clamping claws move closer to or away from each other, thereby respectively realizing the locking or unlocking process of the steel cage.

[0015] Furthermore, a plurality of annular grooves are arranged at one end of the driving rod close to the axis of the pile hole, a half gear is arranged at one end of the clamping jaw, the half gear meshes with the plurality of annular grooves, and the other ends of the two clamping jaws are in the shape of cross-locked arcs.

[0016] Further,

[0017] A stop plate at one end of the driving rod away from the pile hole axis, a first elastic member is provided between the stop plate and the clamping seat, the first elastic member is used to drive the stop plate to move in a direction away from the pile hole axis, and drive the other ends of the two clamping claws to approach each other, so as to achieve locking of the steel cage;

[0018] A positioning groove is provided in the middle of the outer wall of the driving rod, and a clamping assembly is provided on the clamping seat. The positioning groove and the clamping assembly are detachably connected. When the positioning groove slides to be connected with the clamping assembly, the other ends of the two clamps move away from each other, thereby enabling the steel cage to be unlocked.

[0019] Furthermore, the positioning groove is an annular structure;

[0020] The clamping assembly comprises:

[0021] A clamping rod slidably connected to the clamping seat in a direction perpendicular to the driving rod, one end of the clamping rod is provided with an arc groove, and the arc groove is adapted to the positioning groove; and

[0022] A second elastic member, wherein the second elastic member is used to drive the clamping rod to move toward the driving rod.

[0023] Furthermore, the clamping assembly further comprises:

[0024] A stepped hole is arranged in the clamping seat along the vertical direction of the driving rod. Compared with the small hole of the stepped hole, the large hole of the stepped hole is arranged on the side close to the driving rod. One end of the clamping rod passes through the small hole of the stepped hole and is connected to the operating rod. The other end of the clamping rod is provided with an end head and is slidably connected in the large hole of the stepped hole.

[0025] A second elastic member is disposed within the large hole of the stepped hole. Two ends of the second elastic member are respectively connected to the end wall of the large hole of the stepped hole and the end head. A clamping plate is fixedly connected to one end of the end head close to the driving rod. An arc-shaped groove is disposed at one end of the clamping plate close to the driving rod.

[0026] Further,

[0027] A sliding frame is fixedly disposed at one end of the clamping seat away from the axis of the pile hole. The sliding frame is in a "C" shape, and the opening faces the clamping seat, and includes an integrally formed first vertical rod and two first cross rods. The first vertical rod is disposed along the axis direction of the pile hole. A through hole is disposed on the first vertical rod, and an unlocking block is slidably connected to the first vertical rod. The unlocking block selectively blocks the through hole. A first inclined surface is disposed on the unlocking block, and the first inclined surface inclines from top to bottom towards the direction close to the axis of the pile hole. The first inclined surface is slidably connected to a sliding block. A sliding block is disposed at one end of the stop plate away from the axis of the pile hole. The sliding block is disposed opposite to the through hole and is slidably connected to the first inclined surface;

[0028] The sliding seat is slidably connected to the first cross rod along the axis direction of the pile hole. One end of a connecting rod is fixedly connected to the sliding seat. The other end of the connecting rod movably penetrates through the through hole and selectively abuts against the unlocking block;

[0029] At least one of the driving rod, the stop plate and the sliding block and the connecting rod, between the sliding seat and the sliding frame, and / or between the sliding seat and the clamping seat is provided with a third elastic member that moves closer to each other;

[0030] The unlocking member selectively drives the sliding block to move upward relative to the first vertical rod, synchronously drives the positioning groove of the driving rod to be clamped with the clamping assembly, and then the unlocking block is misaligned with the through hole, and the connecting rod approaches the sliding block.

[0031] Further, the third elastic member is at least one of the following structures:

[0032] Structure 1: At least one of the driving rod, the stop plate and the sliding block is provided with a first magnet, and the other end of the connecting rod is provided with a second magnet, and the first magnet and the second magnet attract each other;

[0033] Structure 2: A first sleeve is embedded in the sliding seat. A first insertion rod is fixedly connected to the first cross rod. The first insertion rod is slidably connected to the first sleeve and is disposed along the axis direction of the pile hole. A fourth elastic member is disposed in the first sleeve, and the fourth elastic member is used to drive the first insertion rod to slide towards the first sleeve;

[0034] Structure three: a second sleeve is embedded in the sliding seat, a second plug rod is fixedly connected to the clamping seat, the second plug rod is slidably connected to the second sleeve, and both are arranged along the axis direction of the pile hole, a fifth elastic member is arranged in the second sleeve, and the fifth elastic member is used to drive the second plug rod to slide toward the second sleeve.

[0035] Furthermore, the slide rail comprises two channel steels arranged in a vertical direction and with notches arranged opposite to each other;

[0036] The sliding seat is provided with two groups of walking wheel groups, and the two groups of walking wheel groups are arranged in a one-to-one correspondence with the two channel steels. The walking wheel group includes two walking wheels, and at least one of the walking wheels is internally rotatably connected to a guide wheel, the axis of the guide wheel is perpendicular to the axis of the walking wheel and is arranged along the radial direction of the pile hole, and the guide wheel is slidably connected to the web of the channel steel.

[0037] Compared with the prior art, the pile foundation engineering reinforcement cage anti-alignment deviation device and the use method thereof of the present invention have the following advantages:

[0038] The present invention abandons the steel bar clamping head that relies on electric control in the prior art and adopts a purely mechanical clamping and unlocking mechanism. Through the cooperation of the driving rod, the clamping claw, the elastic member and the clamping assembly, the locking and unlocking operations of the steel cage are realized without the need for additional electrical equipment (such as batteries, wires, telescopic motors, etc.). The mechanical structure of the present invention is not affected by electromagnetic interference, avoids problems such as wire wear and short circuit, and significantly improves the reliability of the equipment in complex environments. Even in the event of a sudden failure of the equipment, it can be manually unlocked through the mechanical structure to avoid interruption of the steel cage installation work and ensure that the construction progress is not affected.

[0039] A second aspect of the present invention provides a method for using the above-mentioned pile foundation engineering reinforcement cage anti-alignment and deviation device, comprising the following steps:

[0040] The top base, the bottom base and the plurality of slide rails are connected and fixed, and lowered into the pile hole, and the top base is fixed to the upper edge of the pile hole;

[0041] The steel cage is lifted to be arranged in a vertical direction, and is fixed to the bottom of the steel cage by using a plurality of clamping components, and the sliding seat is installed on the slide rail, and then the steel cage is lowered;

[0042] The steel cage is lowered to the bottom of the pile hole, and the unlocking member drives the clamping assembly to release the connection with the steel cage;

[0043] The installation process of the steel cage can be completed by lifting the top base, the bottom base, the plurality of slide rails and the clamping assembly.

[0044] The method of using the pile foundation engineering steel cage anti-alignment and deviation device is the same as the advantages of the above-mentioned pile foundation engineering steel cage anti-alignment and deviation device over the prior art, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0046] Figure 1 It is a structural schematic diagram of the pile foundation engineering reinforcement cage anti-alignment deviation device of the present invention when in use;

[0047] Figure 2 It is a schematic diagram of the overall structure of the device for preventing the steel cage from offsetting in pile foundation engineering according to the present invention;

[0048] Figure 3 For the present invention Figure 2 A partial enlarged view of the middle A area;

[0049] Figure 4 For the present invention Figure 2 A partial enlarged view of the middle B area;

[0050] Figure 5 is a cross-sectional view of the clamping mechanism of the present invention;

[0051] Figure 6 It is a schematic diagram of the effect when the clamping mechanism of the present invention is used in conjunction with the unlocking member.

[0052] Figure numerals: 1, top base; 2, bottom base; 3, slide rail; 4, clamping mechanism; 5, unlocking member; 6, pile hole; 401, sliding seat; 402, clamping seat; 403, driving rod; 404, annular groove; 405, clamping claw; 406, half gear; 407, stop plate; 408, first elastic member; 409, positioning groove; 410, clamping rod; 411, second elastic member; 412, operating rod; 413, clamping plate ; 414, sliding frame; 415, through hole; 416, unlocking block; 417, first inclined surface; 418, sliding block; 419, connecting rod; 420, first magnet; 421, second magnet; 422, first sleeve; 423, first plug rod; 424, fourth elastic member; 425, second sleeve; 426, second plug rod; 427, fifth elastic member; 428, walking wheel; 429, guide wheel; 430, unlocking rod. DETAILED DESCRIPTION

[0053] 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.

[0054] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Reference Figure 1-5 A first aspect of the present invention provides a device for preventing the displacement of a reinforcement cage in a pile foundation project, the specific structure of which includes a top base 1, a bottom base 2, a slide rail 3, a clamping mechanism 4 and an unlocking member 5.

[0056] The top base 1 and the bottom base 2 are both annular structures, which are respectively installed on the upper edge and the bottom of the pile hole 6, and are arranged on the peripheral side of the steel cage. The top base 1 is connected to the upper edge of the pile hole 6 by anchor nails, bolts or other fixing methods to ensure stability; the bottom base 2 is fixed by the upper surface of the slide rail 3. Multiple slide rails 3 are arranged along the axis of the pile hole 6, and the two ends are fixedly connected to the top base 1 and the bottom base 2 respectively, and are distributed in a circumferential interval along the axis of the pile hole 6. The number of slide rails 3 can be set to two, in which case the two slide rails 3 are located on the same diameter of the pile hole 6; or several slide rails 3 can be set, and the plurality of slide rails 3 are distributed in a circumferential array along the axis of the pile hole 6. The slide rail 3 adopts a channel steel structure, and each slide rail 3 is composed of two channel steels, and the notches of the channel steels are arranged opposite to each other, so as to form a stable sliding track. When the slide rail 3 is long, it is usually formed by connecting multiple sections of channel steel in sequence. In order to further improve the stability of the slide rail 3, multiple horizontal reinforcement rings (not shown in the figure) can be set between multiple channel steels along the length direction thereof.

[0057] The clamping mechanism 4 includes a sliding seat 401, a clamping seat 402 and a clamping assembly, which are arranged in a one-to-one correspondence. The sliding seat 401 corresponds to the slide rail 3 and is slidably connected, and sliding is achieved by relying on a group of running wheels 428 arranged on the sliding seat 401. In a preferred embodiment of the present invention, two groups of running wheels 428 are arranged on each sliding seat 401, and are slidably connected to two channel steel structures in a one-to-one correspondence. Each group of running wheels 428 includes two running wheels 428, and the two running wheels 428 are arranged at intervals along the axis direction of the pile hole 6, wherein at least one running wheel 428 is internally rotatably connected with a guide wheel 429, the axis of the guide wheel 429 is perpendicular to the axis of the running wheel 428, and is arranged along the radial direction of the pile hole 6, and the guide wheel 429 is slidably connected to the web of the channel steel. This design ensures that the sliding seat 401 can slide stably on the slide rail 3, and ensures that the sliding seat 401 and the slide rail 3 always slide along the axis direction of the pile hole 6. The clamping seat 402 is slidably connected to the sliding seat 401 along the radial direction of the pile hole 6, and the end of the clamping seat 402 away from the sliding seat 401 is connected to the clamping assembly, and the clamping assembly is used to be detachably connected to the steel cage; multiple unlocking members 5 are fixedly connected to the bottom base 2, and are arranged one by one corresponding to multiple slide rails 3. The unlocking members 5 are used to drive the clamping assembly to disconnect from the steel cage, and at the same time drive the clamping seat 402 and the clamping assembly to move in a direction away from the axis of the pile hole 6.

[0058] Furthermore, the clamping assembly includes a driving rod 403 and two clamping jaws 405. The driving rod 403 slides through the clamping seat 402 along the radial direction of the pile hole 6, and a plurality of annular grooves 404 are provided at one end thereof close to the axis of the pile hole 6. One end of the clamping jaw 405 is hinged on the clamping seat 402, and is provided with a half gear 406, which is meshed with the annular groove, and the other end is arranged in a cross-lockable arc shape, which is used to contact and clamp the circular stirrups of the steel cage. The other end of the clamping jaw 405 is arranged in an arc shape, and when clamping the steel cage, the other ends of the two clamping jaws 405 are in contact with the circular stirrups of the steel cage at the same time, so as to avoid the steel cage from contacting a single clamping jaw 405, causing one end of the clamping jaw 405 to rotate and fall off. When the driving rod 403 moves, the annular groove 404 thereof is meshed with the half gear 406 on the clamping jaw 405, so that the other ends of the two clamping jaws 405 are moved closer to or away from each other, thereby achieving locking or unlocking of the steel cage. Specifically, when the driving rod 403 moves away from the axial direction of the pile hole 6, the other ends of the two clamps 405 approach each other, thereby locking the steel cage; conversely, when the driving rod 403 moves toward the axial direction of the pile hole 6, the other ends of the two clamps 405 move away from each other, thereby unlocking the steel cage.

[0059] A stop plate 407 is provided at one end of the driving rod 403 away from the axis of the pile hole 6, and a first elastic member 408, such as a compression spring, is provided between the stop plate 407 and the clamping seat 402, where both ends of the compression spring are respectively connected to the stop plate 407 and the clamping seat 402. The first elastic member 408 is used to drive the stop plate 407 to move away from the axis of the pile hole 6, thereby making the other ends of the two clamping claws 405 approach each other, thereby locking the steel cage.

[0060] An annular positioning groove 409 is provided in the middle of the outer wall of the driving rod 403, and a clamping assembly is provided on the clamping seat 402. The clamping assembly is detachably connected to the positioning groove 409. When the positioning groove 409 slides to be connected with the clamping assembly, the other ends of the two clamping claws 405 move away from each other, thereby unlocking the steel cage.

[0061] Specifically, two groups of clamping assemblies are provided, and the clamping assemblies include a clamping rod 410 and a second elastic member 411. The clamping rod 410 is slidably connected in the clamping seat 402 along the vertical direction of the driving rod 403, and an arc groove is provided at one end thereof, and the arc groove is adapted to the positioning groove 409. The second elastic member 411 is such as a compression spring, which is used to drive the clamping rod 410 to move toward the driving rod 403, so that the arc groove is clamped with the positioning groove 409, thereby unlocking the steel cage.

[0062] Optionally, the clamping assembly also includes: a stepped hole is arranged in the clamping seat 402 along the vertical direction of the driving rod 403, and compared with the small hole of the stepped hole, the large hole of the stepped hole is arranged on the side close to the driving rod 403, one end of the clamping rod 410 passes through the small hole of the stepped hole and is connected to an operating rod 412, and the other end of the clamping rod 410 is provided with an end head and is slidably connected to the large hole of the stepped hole; a second elastic member 411 is arranged in the large hole of the stepped hole, and the two ends of the second elastic member 411 are respectively connected to the end wall of the large hole of the stepped hole and the end head, and the end of the end head close to the driving rod 403 is fixedly connected to a clamping plate 413, and the end of the clamping plate 413 close to the driving rod 403 is provided with an arc groove.

[0063] In a specific embodiment of the present invention, the clamping rod 410 and the small hole of the stepped hole are configured to be compatible prisms, which can prevent the clamping rod 410 from rotating and achieve accurate alignment of the arc groove and the positioning groove 409.

[0064] Reference Figure 6 The unlocking member 5 is fixedly connected to the bottom base 2 and is arranged one by one corresponding to the plurality of slide rails 3. The unlocking member 5 is used to drive the clamping assembly to disconnect from the steel cage after the steel cage is lowered to the bottom of the pile hole 6, and to drive the clamping seat 402 and the clamping assembly to move away from the axis of the pile hole 6, so that the steel cage can be accurately positioned.

[0065] Preferably, a sliding frame 414 in a "C" shape is fixedly arranged at one end of the clamping seat 402 away from the axis of the pile hole 6, and its opening faces the clamping seat 402. The sliding frame 414 includes a first vertical rod and two first cross rods. The first vertical rod and the two first cross rods are integrally formed. The first vertical rod is arranged along the axis direction of the pile hole 6 and is provided with a through hole 415. An unlocking block 416 is slidably connected to the first vertical rod. A first inclined surface 417 is arranged on the unlocking block 416, and the first inclined surface 417 extends and inclines from top to bottom towards the direction close to the axis of the pile hole 6. A sliding block 418 is arranged at one end of the stop plate 407 away from the axis of the pile hole 6. The sliding block 418 is arranged opposite to the through hole 415 and is slidably connected to the first inclined surface 417. The sliding seat 401 is slidably connected to the first cross rod along the axis direction of the pile hole 6. A connecting rod 419 is fixedly connected to the sliding seat 401. The other end of the connecting rod 419 movably penetrates through the through hole 415 and selectively abuts against the unlocking block 416. The connecting rod 419, the unlocking block 416 and the sliding block 418 are arranged in sequence along the radial direction of the pile hole 6, and the connecting rod 419 is located at the end away from the axis of the pile hole 6.

[0066] At least one of the driving rod 403, the stop plate 407 and the sliding block 418 is provided with a third elastic member that approaches each other with the connecting rod 419, between the sliding seat 401 and the sliding frame 414, and / or between the sliding seat 401 and the clamping seat 402.

[0067] The unlocking member 5 selectively drives the sliding block 418 to move upward relative to the first vertical rod, and synchronously drives the positioning groove 409 of the driving rod 403 to be clamped with the clamping assembly. Subsequently, the unlocking block 416 is misaligned with the through hole 415, and the connecting rod 419 approaches the sliding block 418.

[0068] The third elastic member is at least one of the following structures:

[0069] Structure one: At least one of the driving rod 403, the stop plate 407 and the sliding block 418 is provided with a first magnet 420, and the other end of the connecting rod 419 is provided with a second magnet 421. The first magnet 420 and the second magnet 421 attract each other;

[0070] Structure two: A first sleeve 422 is embedded in the sliding seat 401. A first insertion rod 423 is fixedly connected to the first cross rod. The first insertion rod 423 is slidably connected to the first sleeve 422 and is arranged along the axis direction of the pile hole 6. A fourth elastic member 424 is arranged in the first sleeve 422. The fourth elastic member 424 is preferably a tension spring. Here, the two ends of the tension spring are respectively connected to the first sleeve 422 and the first insertion rod 423. The fourth elastic member 424 is used to drive the first insertion rod 423 to slide towards the first sleeve 422;

[0071] Structure three: The sliding seat 401 is embedded with a second sleeve 425, and the clamping seat 402 is fixedly connected with a second plug rod 426. The second plug rod 426 is slidably connected to the second sleeve 425, and both are arranged along the axial direction of the pile hole 6. A fifth elastic member 427 is arranged in the second sleeve 425. The fifth elastic member 427 is preferably a tension spring. Here, the two ends of the tension spring are respectively connected to the second sleeve 425 and the second plug rod 426. The fifth elastic member 427 is used to drive the second plug rod 426 to slide toward the second sleeve 425.

[0072] In a specific embodiment of the present invention, the sliding block 418 is provided with a tip on one side facing the first inclined surface 417, and is provided with an arc surface and a second inclined surface in sequence from top to bottom, the arc surface is an arc concave structure, and the second inclined surface is in contact with the first inclined surface 417. When the sliding block 418 slides upward, the first inclined surface 417 preferably slides relative to the second inclined surface until it slides upward from the first inclined surface 417, and then the bottom of the first inclined surface 417 slides relative to the arc surface, and the arc surface is used to guide the first inclined surface 417 to slide upward so that it is staggered with the stop plate 407 in position to avoid the first inclined surface 417 from being stuck with the stop plate 407. In addition, the other end of the connecting rod 419 is provided with a third inclined surface, the third inclined surface has the same slope as the second inclined surface, and the third inclined surface is arranged relative to the first inclined surface 417, and the first magnet 420 and the second magnet 421 are respectively embedded in the second inclined surface and the third inclined surface.

[0073] Specifically, the unlocking block 416 is fixedly connected to two unlocking rods 430, and the unlocking member 5 is two "T"-shaped structures, fixedly connected to the bottom base 2, and respectively arranged opposite to the two unlocking rods 430, including a second vertical rod and a second horizontal rod integrally formed or connected, the lower end of the second vertical rod is fixedly connected to the bottom base, and the second horizontal rod is arranged opposite to the unlocking rod 430. When the second horizontal rod contacts the unlocking rod 430, as the steel cage further descends, the unlocking rod 430 and the unlocking block 416 can be driven to move upward relative to the first vertical rod to achieve the unlocking effect. Optionally, the two ends of the first horizontal rod extend upward to form two retaining edges.

[0074] It should be noted that the length of the clamping mechanism 4 in the present invention cannot be adjusted, and the sizes of the top base 1, the bottom base 2 and the slide rail 3 should be set accordingly according to the length of the clamping structure to ensure the limiting effect on the steel cage. In addition, the upper end of the channel steel structure is open, and the walking wheel 428 can slide from the opening into the channel steel.

[0075] The beneficial effects of the present invention are mainly reflected in the following aspects:

[0076] a. Improve the positioning accuracy and construction efficiency of the steel cage.

[0077] Precise alignment: The present invention, through the structural design of the top base 1, the bottom base 2 and the slide rail 3, combined with the precise locking and unlocking functions of the clamping mechanism 4, can ensure that the steel cage always maintains stable movement along the axis of the pile hole 6 during the lowering process, avoiding displacement caused by lifting deviation or uneven settlement of the soil layer, thereby significantly improving the alignment accuracy of the steel cage.

[0078] Efficient construction: Compared with the traditional method that relies on manual adjustment or simple guide frames, the device of the present invention can quickly complete the fixing and unlocking operations of the steel cage, greatly shortening the construction time and improving the construction efficiency.

[0079] b. Mechanical unlocking to enhance reliability.

[0080] Purely mechanical structure: The present invention abandons the steel bar clamping head that relies on electric control in the prior art, and adopts a purely mechanical clamping and unlocking mechanism. Through the cooperation of the drive rod 403, the clamping claw 405, the elastic member and the clamping assembly, the locking and unlocking operations of the steel cage are realized without the need for additional electrical equipment (such as batteries, wires, telescopic motors, etc.). The mechanical structure of the present invention is not affected by electromagnetic interference, avoids problems such as wire wear and short circuit, and significantly improves the reliability of the equipment in complex environments. Even in the event of a sudden failure of the equipment, it can be manually unlocked through the mechanical structure to avoid interruption of the steel cage installation work and ensure that the construction progress is not affected.

[0081] c. Improved structural stability and durability.

[0082] Stable design of the slide rail 3: The slide rail 3 adopts a channel steel structure, and the notches of the channel steel are arranged opposite to each other to form a stable sliding track. At the same time, the design of multi-section channel steel connection and horizontal reinforcement ring further improves the stability and load-bearing capacity of the slide rail 3, ensuring the smooth movement of the sliding seat 401 on the slide rail 3.

[0083] d. Strong applicability and reusable

[0084] Wide applicability: The device of the present invention is applicable to a variety of pile foundation engineering scenarios, whether in the field of building construction or other infrastructure construction, and can effectively solve the problem of steel cage alignment deviation.

[0085] Reusable: After completing the installation of the steel cage, the device can be recycled and reused as a whole, further improving resource utilization and reducing construction costs.

[0086] A second aspect of the present invention provides a method for using the above-mentioned pile foundation engineering reinforcement cage anti-alignment and deviation device, which specifically comprises the following steps:

[0087] Device installation: The top base 1, the bottom base 2 and the plurality of slide rails 3 are connected and fixed, and the whole is lowered into the pile hole 6. The top base 1 is fixed to the upper edge of the pile hole 6 by bolts or other fixing methods to ensure the stability of the device.

[0088] Lifting and fixing of the steel cage: Lift the steel cage and set it in the vertical direction. Use multiple clamping components to fix it to the bottom of the steel cage. Install the sliding seat 401 on the slide rail 3 to ensure that the clamping components can stably clamp the steel cage.

[0089] Lowering the steel cage: Start the lifting equipment and slowly lower the steel cage along the slide rail 3 to the bottom of the pile hole 6. During the lowering process, the clamping assembly is tightly connected to the steel cage through the clamping claw 405 to prevent the steel cage from deflecting.

[0090] Unlocking and positioning: When the steel cage is lowered to the bottom of the pile hole 6, the unlocking member 5 is actuated to drive the clamping assembly to release the connection with the steel cage. At the same time, the clamping seat 402 and the clamping assembly move away from the axis of the pile hole 6 under the action of the unlocking member 5 to ensure that the steel cage is accurately positioned.

[0091] Device recovery: lift up the top base 1, bottom base 2, multiple slide rails 3 and clamping components to complete the installation process of the steel cage. The device can be reused and is suitable for multiple pile foundation projects.

[0092] Preferably, the fixing process of the steel cage comprises the following steps:

[0093] In the initial state, the unlocking block 416 is located at the lowest end of the first vertical rod and is opposite to the through hole 415. The other end of the connecting rod 419 is inserted into the through hole 415 and abuts against the unlocking block 416. The first inclined surface 417 abuts against the sliding block 418. Since the stop plate 407 moves in a direction away from the axis of the pile hole 6 under the action of the first elastic member 408, a relatively stable state of the sliding block 418 and the connecting rod 419 can be achieved.

[0094] When in use, the stop plate 407 and / or the driving rod 403 are pushed to move toward the axis of the pile hole 6, so that the positioning groove 409 is opposite to the arc groove, and the clamping rod 410 drives the clamping plate 413 to move toward the positioning groove 409 under the action of the second elastic member 411, so as to achieve the effect of clamping the positioning groove 409 with the arc groove. Simultaneously, under the action of the driving rod 403, the other ends of the two clamping jaws 405 move away from each other and form an opening, and at this time, the circular stirrup at the bottom of the steel cage is placed between the two clamping jaws 405. The clamping rod 410 is driven by the operating rod 412 to move away from the driving rod 403, so that the arc groove is disengaged from the positioning groove 409, and the stop plate 407 is moved away from the axis of the pile hole 6 under the action of the first elastic member 408 until the sliding block 418 and the first inclined surface 417 are again against each other. Simultaneously, under the action of the driving rod 403, the other ends of the two clamping jaws 405 move closer to each other, forming a locking effect on the circular stirrup at the bottom of the steel cage.

[0095] Preferably, the unlocking process of the steel cage comprises the following steps:

[0096] In the instant when the steel cage falls to the bottom of the pile hole 6, the unlocking member 5 contacts the unlocking rod 430 on the unlocking block 416, driving the unlocking block 416 to move upward relative to the first vertical rod. At this time, the inclined surface and the sliding block 418 slide relative to each other, and the connecting rod 419 and the through hole 415 are relatively stationary, driving the sliding block 418 and the driving rod 403 to move toward the axis of the pile hole 6, so that the positioning groove 409 is opposite to the arc groove, and the clamping rod 410 drives the clamping plate 413 to move toward the positioning groove 409 under the action of the second elastic member 411, so that the positioning groove 409 is clamped with the arc groove. Simultaneously, under the action of the driving rod 403, the other ends of the two clamping claws 405 move away from each other and form an opening, so that the circular stirrups at the bottom of the steel cage are opposite to the opening. Furthermore, the unlocking member 5 further drives the unlocking block 416 to move upward relative to the first vertical rod until the unlocking block 416 and the through hole 415, the unlocking block 416 and the sliding block 418, and the unlocking block 416 and the stop plate 407 are all staggered. Simultaneously, under the action of the third elastic member, the connecting rod 419 and the sliding block 418 approach each other until the two clamping claws 405 are disengaged from the circular stirrup at the bottom of the steel cage, completing the unlocking process of the steel cage.

[0097] The method of using the pile foundation engineering steel cage anti-alignment and deviation device is the same as the advantages of the above-mentioned pile foundation engineering steel cage anti-alignment and deviation device over the prior art, and will not be repeated here.

[0098] In the description of the present invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside" and "outside" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0099] The embodiments described above are only descriptions of the preferred modes of the present invention, and are not intended to limit the scope of the present invention. Without departing from the design spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary technicians in this field should all fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for preventing the steel cage from shifting in a pile foundation project, characterized in that: include: A top base (1) and a bottom base (2) which are in an annular structure and are used to be installed on the upper edge and the bottom of the pile hole (6) respectively; A plurality of slide rails (3) are arranged along the axis direction of the pile hole (6), and the two ends of the slide rails are respectively fixedly connected to the top base (1) and the bottom base (2), and the plurality of slide rails (3) are arranged at intervals along the axis direction of the pile hole (6) in a circumferential manner; The clamping mechanism (4) comprises a sliding seat (401), a clamping seat (402) and a clamping assembly which are arranged in a one-to-one correspondence, wherein the sliding seat (401) is slidably connected to the slide rail (3) in a one-to-one correspondence, the clamping seat (402) is slidably connected to the sliding seat (401) along the radial direction of the pile hole (6), and one end of the clamping seat (402) away from the sliding seat (401) is connected to the clamping assembly, and the clamping assembly is used to be detachably connected to the steel cage; as well as A plurality of unlocking members (5) are fixedly connected to the base (2) and are arranged one-to-one with the plurality of slide rails (3). The unlocking members (5) are used to drive the clamping assembly to release the connection with the steel cage and drive the clamping seat (402) and the clamping assembly to move in a direction away from the axis of the pile hole (6).

2. The anti-alignment and deviation device for reinforcement cage of pile foundation engineering according to claim 1 is characterized in that: The clamping assembly comprises: A driving rod (403) slidingly passing through the clamping seat (402) in the radial direction of the pile hole (6); Two clamping claws (405) are used for being detachably connected to the steel cage and one end of which is hinged on the clamping seat (402). When the driving rod (403) moves away from or towards the axis of the pile hole (6), the other ends of the two clamping claws (405) move towards or away from each other, thereby respectively realizing the locking or unlocking process of the steel cage.

3. The anti-alignment and deviation device for reinforcement cage of pile foundation engineering according to claim 2 is characterized in that: A plurality of annular grooves (404) are arranged at one end of the driving rod (403) close to the axis of the pile hole (6), a half gear (406) is arranged at one end of the clamping jaw (405), and the half gear (406) is meshed with the plurality of annular grooves (404), and the other ends of the two clamping jaws (405) are in the shape of an arc that can be cross-locked.

4. The anti-alignment and deviation device for reinforcement cages in pile foundation engineering according to claim 2 is characterized in that: A stop plate (407) is provided at one end of the driving rod (403) away from the axis of the pile hole (6), and a first elastic member (408) is provided between the stop plate (407) and the clamping seat (402), and the first elastic member (408) is used to drive the stop plate (407) to move in a direction away from the axis of the pile hole (6), and drive the other ends of the two clamping claws (405) to approach each other, so as to achieve locking of the steel cage; A positioning groove (409) is provided in the middle of the outer wall of the driving rod (403), and a clamping assembly is provided on the clamping seat (402). The positioning groove (409) is detachably connected to the clamping assembly. When the positioning groove (409) slides to be connected with the clamping assembly, the other ends of the two clamping claws (405) move away from each other, so that the steel cage can be unlocked.

5. The device for preventing the steel cage from shifting in a pile foundation project according to claim 4 is characterized in that: The positioning groove (409) is an annular structure; The clamping assembly comprises: A clamping rod (410) that is slidably connected in the clamping seat (402) in a direction perpendicular to the driving rod (403). One end of the clamping rod (410) is provided with an arc-shaped groove, and the arc-shaped groove is adapted to the positioning groove (409); and A second elastic member (411) for driving the clamping rod (410) to move towards the driving rod (403).

6. The device for preventing the steel cage from shifting in a pile foundation project according to claim 5 is characterized in that: The clamping assembly further includes: A stepped hole is arranged in the clamping seat (402) in a direction perpendicular to the driving rod (403). The large hole of the stepped hole is arranged on the side close to the driving rod (403) compared with the small hole of the stepped hole. One end of the clamping rod (410) passes through the small hole of the stepped hole and is connected with an operating rod (412). The other end of the clamping rod (410) is provided with a head portion and is slidably connected in the large hole of the stepped hole; The second elastic member (411) is arranged in the large hole of the stepped hole. Two ends of the second elastic member (411) are respectively connected with the end wall of the large hole of the stepped hole and the head portion. One end of the head portion close to the driving rod (403) is fixedly connected with a clamping plate (413), and the arc-shaped groove is arranged at one end of the clamping plate (413) close to the driving rod (403).

7. The device for preventing the alignment deviation of the steel reinforcement cage in the pile foundation project according to claim 4, characterized in that A sliding frame (414) is fixedly arranged at one end of the clamping seat (402) far from the axis of the pile hole (6). The sliding frame (414) is in a "C" shape, and the opening faces the clamping seat (402), including an integrally formed first vertical rod and two first cross rods. The first vertical rod is arranged along the axis direction of the pile hole (6). The first vertical rod is provided with a through hole (415), and an unlocking block (416) is slidably connected to the first vertical rod. The unlocking block (416) selectively blocks the through hole (415). A first inclined surface (417) is arranged on the unlocking block (416). The first inclined surface (417) is inclined from top to bottom towards the direction close to the axis of the pile hole (6). The first inclined surface (417) is slidably connected with a sliding block (418). A sliding block (418) is arranged at one end of the stop plate (407) far from the axis of the pile hole (6). The sliding block (418) is arranged opposite to the through hole (415) and is slidably connected with the first inclined surface (417); The sliding seat (401) is slidably connected with the first cross rod along the axis direction of the pile hole (6). One end of a connecting rod (419) is fixedly connected to the sliding seat (401). The other end of the connecting rod (419) movably passes through the through hole (415) and selectively abuts against the unlocking block (416); At least one of the driving rod (403), the stop plate (407) and the sliding block (418) and the connecting rod (419), between the sliding seat (401) and the sliding frame (414), and / or between the sliding seat (401) and the clamping seat (402), there is a third elastic member that moves closer to each other; The unlocking member (5) selectively drives the sliding block (418) to move upward relative to the first vertical rod, and simultaneously drives the positioning groove (409) of the driving rod (403) to engage with the engaging assembly, and then the unlocking block (416) and the through hole (415) are staggered, and the connecting rod (419) and the sliding block (418) are close to each other.

8. The device for preventing the steel cage from shifting in a pile foundation project according to claim 7 is characterized in that: The third elastic member is at least one of the following structures: Structure 1: at least one of the driving rod (403), the stop plate (407) and the sliding block (418) is provided with a first magnet (420); the other end of the connecting rod (419) is provided with a second magnet (421); the first magnet (420) and the second magnet (421) attract each other; Structure 2: A first sleeve (422) is embedded in the sliding seat (401); a first insertion rod (423) is fixedly connected to the first cross bar; the first insertion rod (423) is slidably connected to the first sleeve (422) and both are arranged along the axis direction of the pile hole (6); a fourth elastic member (424) is arranged in the first sleeve (422); the fourth elastic member (424) is used to drive the first insertion rod (423) to slide toward the first sleeve (422); Structure three: the sliding seat (401) is embedded with a second sleeve (425), the clamping seat (402) is fixedly connected with a second plug rod (426), the second plug rod (426) is slidably connected to the second sleeve (425), and both are arranged along the axial direction of the pile hole (6), and the second sleeve (425) is provided with a fifth elastic member (427), and the fifth elastic member (427) is used to drive the second plug rod (426) to slide toward the second sleeve (425).

9. The device for preventing the steel cage from shifting in a pile foundation project according to claim 7, characterized in that: The slide rail (3) comprises two channel steels arranged in a vertical direction and with notches facing each other; The sliding seat (401) is provided with two groups of running wheels (428), and the two groups of running wheels (428) are arranged in a one-to-one correspondence with the two channel steels. The running wheel (428) group includes two running wheels (428), and at least one of the running wheels (428) is internally rotatably connected to a guide wheel (429). The axis of the guide wheel (429) is perpendicular to the axis of the running wheel (428) and is arranged along the radial direction of the pile hole (6). The guide wheel (429) is slidably connected to the web of the channel steel.

10. A method for using the device for preventing the alignment and deviation of a reinforcement cage in a pile foundation engineering according to any one of claims 1 to 9, characterized in that: The following steps are involved: The top base (1), the bottom base (2) and the plurality of slide rails (3) are connected and fixed, and lowered into the pile hole (6), and the top base (1) is fixed to the upper edge of the pile hole (6); The steel cage is lifted and arranged in a vertical direction, and is fixed to the bottom of the steel cage by using a plurality of clamping components, and the sliding seat (401) is installed on the slide rail (3), and then the steel cage is lowered; The steel cage is lowered to the bottom of the pile hole (6), and the unlocking member (5) drives the clamping assembly to release the connection with the steel cage; The installation process of the steel cage can be completed by lifting the top base (1), the bottom base (2), the plurality of slide rails (3) and the clamping assembly.

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