CN215829405U

CN215829405U - Anti-pulling device for cast-in-place pile

Info

Publication number: CN215829405U
Application number: CN202122374787.6U
Authority: CN
Inventors: 宋营
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-09-29
Filing date: 2021-09-29
Publication date: 2022-02-15
Anticipated expiration: 2031-09-29

Abstract

The utility model provides a bored concrete pile resistance to plucking device, includes execution portion and control unit, execution portion include the cylinder piece, set up first through-hole on the cylinder piece, several second through-hole is seted up to cylinder piece side, there is the pin rod in the second through-hole, there is the drill bit on the pin rod, control unit includes the backup pad, has the screw thread through-hole in the backup pad, threaded through-hole in-connection vaulting pole, the circular cone piece is connected to the vaulting pole bottom surface, there are several third through-holes in the backup pad, there is the pull rod in the third through-hole, there is transmission on the vaulting pole. This device passes through the interact between the circular conical surface on circular conical block and the pin rod to the effectual resistance to plucking ability that improves the bored concrete pile, transmission's design makes the vaulting pole drive pin rod all around simultaneously rotatory, thereby make the pin rod can be through the light brill all around soil of drill bit in, very big reduction constructor's intensity of labour, threaded connection design between pull rod and the cylinder piece makes control portion can continue to be used for installing next resistance to plucking device, practiced thrift the construction cost of bored concrete pile.

Description

Anti-pulling device for cast-in-place pile

Technical Field

The utility model belongs to the field of cast-in-place pile pulling-resistant devices, and particularly relates to a cast-in-place pile pulling-resistant device.

Background

The bored pile is directly perforated on the designed pile position, the cross section of the bored pile is circular, a reinforcement cage is additionally arranged in the hole after the hole is perforated, and concrete is poured to form the bored pile, the bored pile can be divided into a compression-resistant pile, an uplift pile and a horizontal bearing pile according to the function, can bear downward pressure, upward uplift force and horizontal thrust respectively, and plays a role in limiting displacement in each direction, and the bored pile is widely applied in construction because of the advantages of no vibration, no soil extrusion, low noise, suitability for use in dense urban building areas and the like during construction; the uplift resistance of the existing cast-in-place pile is realized by the friction between a pile body and soil, and the uplift resistance is mostly not high, so that the use requirement is difficult to meet.

SUMMERY OF THE UTILITY MODEL

The utility model provides a cast-in-place pile pulling-resistant device which is used for overcoming the defects in the prior art.

The utility model is realized by the following technical scheme:

an uplift device of a cast-in-place pile comprises an execution part and a control part, wherein the execution part comprises a cylindrical block, a first through hole is formed in the center of the top surface of the cylindrical block, a plurality of horizontal second through holes are uniformly and circumferentially formed in the side surface of the cylindrical block, horizontal pin rods are arranged in the second through holes, the inward ends of the pin rods are conical, drill bits are fixedly arranged at the outward ends of the pin rods, the control part include horizontally backup pad, the screw thread through-hole is seted up at the top surface center of backup pad, the vertical vaulting pole of screw thread through-hole internal thread connection, the circular cone piece is connected to the bottom surface of vaulting pole, in the circular cone piece stretched into first through-hole, the third through-hole of several circumference equipartition was seted up to the top surface of backup pad, all set up vertical pull rod in the third through-hole, the pull rod all is connected for dismantling with the top surface of cylinder piece, sets up transmission on the vaulting pole, the vaulting pole can drive the pin rod rotation through transmission.

As above a bored concrete pile resistance to plucking device, transmission include the gear mounting groove, the second through-hole in all set up the gear mounting groove, all set up the gear in the gear mounting groove, the gear all with the pin rod splined connection who corresponds, the ring channel is seted up to the top surface of cylinder piece, the gear mounting groove all communicates with each other with the ring channel, set up the ring gear in the ring channel, the gear all meshes with the ring gear, the lower extreme spline connection sleeve of vaulting pole, through the connecting rod fixed connection of several L type between sleeve and the ring gear, the sleeve passes through spring coupling with the circular cone piece.

According to the uplift device for the cast-in-place pile, the conical surface of the conical block is provided with a plurality of balls.

According to the uplift device for the cast-in-place pile, the pull rod is in threaded connection with the top surface of the cylindrical block, and the pull rod is rotatably connected with the corresponding third through hole.

According to the cast-in-place pile pulling-resistant device, the top surfaces of the support rod and the pull rod are fixedly provided with the turntables, and the top surfaces of the turntables, which are close to the side surfaces, are rotatably connected with the vertical crank.

The utility model has the advantages that: when the cast-in-place pile is constructed, the execution part of the device is placed in a cast-in-place hole on the ground, the supporting plate covers the hole opening at the moment, the supporting rod is rotated to enable the supporting rod to move downwards under the action of the threaded hole, so that the conical block moves downwards in the first through hole, when the conical block is pressed against the conical surface of the pin rod, under the action of the conical surface on the conical block and the conical surface on the pin rod, the pin rod moves towards the outer side along the second through hole, meanwhile, the pin rod drives the drill bit to rotate in the second through hole through the transmission device by the support rod until the pin rod is pushed into the soil of the pouring hole by the conical block, then the pull rod is detached from the cylindrical block, the control part is taken out from the pouring hole, finally reinforcing steel bars are put into the pouring hole and concrete is poured into the pouring hole, when the concrete is solidified into a pouring pile, the pin rod is propped in the soil around the cast-in-place pile, so that the uplift resistance of the cast-in-place pile is greatly enhanced; according to the utility model, through the interaction between the conical block and the conical surface on the pin rod, the pin rod can be pushed into the surrounding soil by the support rod, so that the pulling resistance of the cast-in-place pile is effectively improved, the design of the transmission device enables the support rod to simultaneously drive the surrounding pin rod to rotate, so that the pin rod can easily drill into the surrounding soil through the drill bit, the labor intensity of constructors is greatly reduced, the threaded connection design between the pull rod and the cylindrical block enables the control part to be continuously used for installing the next pulling resistance device, the waste of resources is effectively reduced, and the construction cost of the cast-in-place pile is saved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

An uplift device for a cast-in-place pile comprises an execution part 1 and a control part 2, wherein the execution part 1 comprises a cylindrical block 101, a first through hole 102 is formed in the center of the top surface of the cylindrical block 101, a plurality of horizontal second through holes 103 are uniformly formed in the circumferential direction of the side surface of the cylindrical block 101, horizontal pin rods 104 are arranged in the second through holes 103, the inward ends of the pin rods 104 are conical, drill bits 105 are fixedly arranged at the outward ends of the pin rods 104, the control part 2 comprises a horizontal support plate 201, a threaded through hole 202 is formed in the center of the top surface of the support plate 201, the threaded through hole 202 is in threaded connection with a vertical support rod 203, the bottom surface of the support rod 203 is connected with a conical block 204, the conical block 204 extends into the first through hole 102, a plurality of third through holes 205 are uniformly formed in the circumferential direction of the top surface of the support plate 201, vertical pull rods 206 are arranged in the third through holes 205, and the pull rods 206 are detachably connected with the top surface of the cylindrical block 101, the transmission device 3 is arranged on the stay bar 203, and the stay bar 203 can drive the pin 104 to rotate through the transmission device 3. When the cast-in-place pile is constructed, the execution part 1 of the device is placed into the cast-in-place hole 100 on the ground, the support plate 201 is covered on the hole opening, the support rod 203 is rotated to enable the support rod to move downwards under the action of the threaded hole 202, so that the conical block 204 moves downwards in the first through hole 102, when the conical block is propped against the conical surface of the pin rod 104, the pin rod moves outwards along the second through hole 103 under the action of the conical surface on the conical block and the conical surface on the pin rod, simultaneously the support rod enables the pin rod to drive the drill bit 105 to rotate in the second through hole through the transmission device 3 until the conical block props the pin rod into the soil of the cast-in-place hole 100, then the pull rod 206 is detached from the cylindrical block 101, the control part 2 is taken out of the cast-in hole, finally, steel bars are placed into the cast-in-place hole 100 and concrete is poured, after the concrete is solidified into the cast-in-place pile, the uplift resistance of the cast-in-place pile is greatly enhanced; according to the utility model, through the interaction between the conical block and the conical surface on the pin rod, the pin rod can be pushed into the surrounding soil by the support rod, so that the pulling resistance of the cast-in-place pile is effectively improved, the design of the transmission device enables the support rod to simultaneously drive the surrounding pin rod to rotate, so that the pin rod can easily drill into the surrounding soil through the drill bit, the labor intensity of constructors is greatly reduced, the threaded connection design between the pull rod and the cylindrical block enables the control part to be continuously used for installing the next pulling resistance device, the waste of resources is effectively reduced, and the construction cost of the cast-in-place pile is saved.

Specifically, as shown in the figure, the transmission device 3 according to the present embodiment includes a gear mounting groove 301, the gear mounting grooves 301 are formed in the second through holes 103, gears 302 are disposed in the gear mounting grooves 301, the gears 302 are all in spline connection with corresponding pins 104, an annular groove 303 is formed in the top surface of the cylindrical block 101, the gear mounting grooves 301 are all communicated with the annular groove 303, a toothed ring 304 is disposed in the annular groove 303, the gears 302 are all engaged with the toothed ring 304, a lower end of the strut 203 is in spline connection with a sleeve 305, the sleeve 305 is fixedly connected with the toothed ring 304 through a plurality of L-shaped connecting rods 306, and the sleeve 305 is connected with the conical block 204 through a spring 307. When the vaulting pole was rotatory, the sleeve passed through the connecting rod and drives the ring gear rotatory, and the ring gear passes through the gear and drives the round pin pole rotatory to make in boring into the soil of filling hole inner wall that the round pin pole can be light, the design of spring makes the toper piece can pass through spring pulling sleeve, thereby makes the vaulting pole when removing, the ring gear can all the time with gear engagement, makes transmission can drive the round pin pole rotatory.

Specifically, as shown in the figure, a plurality of balls 4 are disposed on the conical surface of the conical block 204 according to the present embodiment. The design reduces the friction force between the conical surface on the conical block and the conical surface on the pin rod when the conical block is propped against the pin rod, so that the conical block is smoother when pushing the pin rod, and the labor intensity of constructors is effectively reduced.

Further, as shown in the figure, the pull rod 206 according to this embodiment is in threaded connection with the top surface of the cylindrical block 101, and the pull rod 206 is rotatably connected with the corresponding third through hole. This design makes the workman can dismantle the pull rod from the cylinder piece through rotatory pull rod 206 to make things convenient for the workman to carry out recycle, avoid the wasting of resources to control part.

Furthermore, as shown in the drawings, the top surfaces of the brace rod 203 and the pull rod 206 in the embodiment are both fixedly provided with the turntable 5, and the vertical crank 6 is rotatably connected to the top surface of the turntable 5 near the side surface. This design makes constructor can rotate vaulting pole and pull rod through carousel or crank when using this device to make constructor more convenient and laborsaving when operation and dismantlement this device.

Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides a bored concrete pile resistance to plucking device which characterized in that: the device comprises an execution part (1) and a control part (2), wherein the execution part (1) comprises a cylindrical block (101), a first through hole (102) is formed in the center of the top surface of the cylindrical block (101), a plurality of horizontal second through holes (103) are uniformly formed in the circumferential direction of the side surface of the cylindrical block (101), horizontal pin rods (104) are arranged in the second through holes (103), the inward ends of the pin rods (104) are conical, drill bits (105) are fixedly arranged at the outward ends of the pin rods (104), the control part (2) comprises a horizontal support plate (201), a threaded through hole (202) is formed in the center of the top surface of the support plate (201), the threaded through hole (202) is in threaded connection with a vertical support rod (203), the bottom surface of the support rod (203) is connected with a conical block (204), the conical block (204) extends into the first through hole (102), a plurality of third through holes (205) are uniformly formed in the circumferential direction on the top surface of the support plate (201), all set up vertical pull rod (206) in third through-hole (205), pull rod (206) all are connected for dismantling with the top surface of cylindric lock (101), set up transmission (3) on vaulting pole (203), and vaulting pole (203) can drive pin pole (104) rotation through transmission (3).

2. A cast-in-place pile uplift device according to claim 1, wherein: transmission device (3) include gear mounting groove (301), second through-hole (103) in all set up gear mounting groove (301), all set up gear (302) in gear mounting groove (301), gear (302) all with pin rod (104) splined connection that corresponds, ring channel (303) are seted up to the top surface of cylinder piece (101), gear mounting groove (301) all communicate with each other with ring channel (303), set up ring gear (304) in ring channel (303), gear (302) all mesh with ring gear (304), the lower extreme splined connection of vaulting pole (203) connects sleeve (305), connecting rod (306) fixed connection through the several L type between sleeve (305) and ring gear (304), sleeve (305) are connected through spring (307) with cone block (204).

3. A cast-in-place pile uplift device according to claim 1, wherein: the conical surface of the conical block (204) is provided with a plurality of balls (4).

4. A cast-in-place pile uplift device according to claim 1, wherein: the pull rod (206) is in threaded connection with the top surface of the cylindrical block (101), and the pull rod (206) is in rotary connection with the corresponding third through hole.

5. An uplift device for a cast-in-place pile according to claim 4, wherein: the top surfaces of the support rod (203) and the pull rod (206) are fixedly provided with a turntable (5), and the top surface of the turntable (5) close to the side surface is rotatably connected with a vertical crank (6).