Pile foundation guiding and positioning device for foundation pit supporting construction

Abstract

The utility model relates to the technical field of foundation pit supporting, and discloses a pile foundation guiding and positioning device used for foundation pit supporting construction, which comprises a bottom plate and a supporting frame, four corners of the top end of the bottom plate are respectively welded with four corners of the bottom end of the supporting frame through angle iron, one side of the angle iron is provided with an adjusting assembly, and the adjusting assembly is connected with the bottom end of the supporting frame. A pile groove and a channel are formed in the surface of the bottom plate and the surface of the supporting frame correspondingly, positioning blocks are slidably connected to the two sides of the supporting frame correspondingly, and a V-shaped groove is formed in one side of each positioning block; the device has the advantages that the supporting frame can be conveniently arranged on the surface of the pile in a sleeving mode through the channel, the pile can be located in the pile groove, the pile does not need to be controlled to be arranged between the two positioning blocks from top to bottom, the supporting frame can be conveniently placed, and the driving assembly drives the double-thread screw and the threaded sleeve to drive the two positioning blocks to move oppositely. And the two positioning blocks can centrally support piles with different diameters through the V-shaped grooves.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation pit support, in particular to a pile foundation guiding and positioning device used for foundation pit support construction. Background Art

[0002] Foundation pit support engineering refers to the engineering measures taken during foundation pit excavation to ensure the stability of the pit wall, protect the safety of the main underground project during construction, and protect the surrounding environment from damage. The methods of foundation pit support include pile support, pile support, pile anchor, pile cantilever, underground continuous wall support, ground-connected wall, cement retaining wall, etc.

[0003] Its application number "CN202220359951.8" discloses a "pile foundation guiding and positioning device for foundation pit support construction", which "includes a supporting device, wherein the four corners of the bottom end of the supporting device are provided with fine-tuning devices, wherein the fine-tuning devices are used to adjust the height of the supporting device, wherein a clamping device is provided on the supporting device, and clamping adjustment devices are provided on both sides of the supporting device, wherein the clamping adjustment device includes a U-shaped guide rod". In the utility model, when the pile needs to be positioned on the supporting device, the two clamping devices are placed at the positioning point, and the four corners of the positioning plate are fine-tuned by rotating the four threaded cylinders, and then the pile is lowered from the top of the circular through hole, and the bottom end of the pile contacts the two guide rods, and the two guide rods can be squeezed outward, at which time the two clamping plates on the left side will move to the left to drive the left special-shaped guide rod to slide to the left in the two receiving grooves on the left, and the two clamping plates on the right side will move to the right to drive the right special-shaped guide rod to slide to the right in the two receiving grooves on the right, thereby achieving the descent of the pile.

[0004] However, the above method still has the following defects: the clamping plate can be used to guide and position piles of different diameters, but the pile needs to be lowered from above the circular through hole, and it is difficult to directly put the clamping plate on the surface of the pile, which is difficult to operate, and the clamping adjustment device needs to be manually adjusted by the fixing bolt to change the spacing between the clamping plates, which is labor-intensive and time-consuming. The fixing bolt needs to be used in conjunction with the first clamping slot and the second clamping slot. Both the first clamping slot and the second clamping slot have a hole spacing, which makes it difficult to achieve stepless adjustment of the clamping plate. Utility Model Content

[0005] The purpose of the utility model is to provide a pile foundation guiding and positioning device for foundation pit support construction, so as to solve the problems proposed in the above-mentioned background technology that it is difficult to directly sleeve the clamping plate on the surface of the pile column, the operation is difficult, and the clamping adjustment device needs to be manually adjusted by fixing bolts.

[0006] The utility model provides the following technical solutions: a pile foundation guiding and positioning device for foundation pit support construction, comprising a base plate and a support frame, the four corners at the top of the base plate are respectively welded to the four corners at the bottom of the support frame by angle irons, an adjustment component is provided on one side of the angle iron, pile grooves and channels are respectively provided on the surface of the base plate and the surface of the support frame, positioning blocks are slidably connected on both sides of the support frame, a V-shaped groove is provided on one side of the positioning block, a guide wheel is rotatably connected on the surface of the V-shaped groove, the support frame is fixedly connected to a chassis, a double-headed screw is rotatably connected inside the chassis, and the double-headed screw is driven by a driving component to rotate inside the chassis, and slides are connected on both sides of the double-headed screw by threaded sleeves, and one side of the slide is fixedly connected to the positioning block.

[0007] As a preferred technical solution of the utility model, the adjustment assembly includes a protective cover, a screw and a support leg. The protective cover is rotatably connected to the inside of the screw, and the screw is threadedly connected to a threaded barrel. A lifting platform is fixedly provided on one side of the threaded barrel, a support leg is welded to the bottom end of the lifting platform, a pad is fixedly provided on the bottom end of the support leg, and a handwheel is fixedly provided on the top end of the screw.

[0008] As a preferred technical solution of the utility model, a door panel is provided on the surface of the protective cover, the bottom end of the protective cover is fixedly connected to the top end of the base plate, the surface of the base plate is slidably connected to the supporting legs through a rod groove, one side of the protective cover is fixedly connected to one side of the angle iron, one side of the angle iron is fixedly provided with a track, and the lifting platform is slidably connected to the track.

[0009] As a preferred technical solution of the utility model, a slide groove is provided on the inner wall of the support frame, a sliding block is fixedly provided on one side of the positioning block, and the sliding block is slidably connected to the slide groove.

[0010] As a preferred technical solution of the utility model, a slideway is opened on one side of the support frame, the slide is slidably connected to the slideway, the slide is welded to the threaded sleeve, and the threaded sleeve is threadedly connected to the double-head screw.

[0011] As a preferred technical solution of the utility model, a guide block is welded on the surface of the threaded sleeve, a guide rail is fixedly provided on the inner wall of one side of the chassis, the guide block is slidably connected to the guide rail, and a box cover is provided on the top of the chassis.

[0012] As a preferred technical solution of the utility model, the driving assembly includes a transmission chamber, a worm and a motor. The transmission chamber is internally rotatably connected to the worm, the double-headed screw is transmission-connected to the worm through a worm gear, a motor is fixedly mounted at the bottom end of the transmission chamber, the output shaft of the motor is connected to the worm, and a cover plate is provided on one side of the transmission chamber.

[0013] As a preferred technical solution of the utility model, one end of the double-headed screw is fixedly connected to a transmission shaft, one end of the transmission shaft is welded to a worm gear, the worm gear is meshingly connected to the worm, and the worm gear and the transmission shaft are both located inside the transmission chamber.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] 1. The pile foundation guiding and positioning device used for foundation pit support construction can conveniently sleeve the support frame on the surface of the pile column through the channel. The pile column can be located in the pile groove, and there is no need to control the pile column to be placed between the two positioning blocks from top to bottom, which is convenient for placing the support frame. The double-headed screw is driven by the driving component, and the threaded sleeve can drive the two positioning blocks to move in opposite directions. The two positioning blocks can centrally support pile columns of different diameters through the V-shaped groove, and the pile column can be quickly limited without manual operation, which saves manpower and time, and can realize stepless adjustment of the position of the positioning block, thereby improving the positioning effect of the pile column.

[0016] 2. The pile foundation guiding and positioning device used for foundation pit support construction can reduce the friction between the pile column and the positioning block through the guide wheel provided inside the V-shaped groove. When the pile column is vertically displaced, the guide wheel can rotate, reducing the resistance during piling and the wear of the contact surface, and ensuring the vertical movement of the pile column. The bottom plate can support the support frame through the angle iron, and the support frame can be leveled through the adjustment component on one side of the angle iron to prevent the support frame and the positioning block from tilting. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the structural schematic diagrams of the utility model;

[0018] Figure 2 This is the second structural diagram of the utility model;

[0019] Figure 3 It is a schematic diagram of the explosion structure of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the support frame of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the adjustment component of the utility model;

[0022] Figure 6 It is a structural schematic diagram of the drive assembly of the utility model.

[0023] In the figure: 1. bottom plate; 2. pile groove; 3. rod groove; 4. angle iron; 5. adjustment assembly; 501. protective cover; 502. screw rod; 503. threaded barrel; 504. lifting platform; 505. support leg; 506. pad; 507. hand wheel; 508. door panel; 6. support frame; 7. slide groove; 8. channel; 9. slideway; 10. positioning block; 11. V-groove; 12. guide wheel; 13. chassis; 14. slider; 15. double-headed screw; 16. threaded sleeve; 17. slide; 18. guide block; 19. guide rail; 20. box cover; 21. transmission shaft; 22. worm gear; 23. drive assembly; 2301. transmission chamber; 2302. worm; 2303. motor; 2304. cover plate; 24. track. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] Embodiment 1:

[0026] See also Figure 1-6 The utility model provides a pile foundation guiding and positioning device for foundation pit support construction, including a bottom plate 1 and a support frame 6. The four corners at the top of the bottom plate 1 are welded to the four corners at the bottom of the support frame 6 through angle irons 4. An adjustment component 5 is provided on one side of the angle iron 4. A pile groove 2 and a channel 8 are respectively provided on the surface of the bottom plate 1 and the surface of the support frame 6. The channel 8 is convenient for sleeve-mounting the support frame 6 on the surface of the pile column. The pile column can be located in the pile groove 2, which is convenient for placing the support frame 6. Positioning blocks 10 are slidably connected to both sides of the support frame 6. A V-shaped groove 11 is provided on one side of the positioning block 10. The surface of the V-shaped groove 11 is rotatably connected with a guide wheel 12, the support frame 6 is fixedly connected with a chassis 13, the inside of the chassis 13 is rotatably connected with a double-headed screw 15, and the double-headed screw 15 is driven by a driving component 23 to rotate inside the chassis 13, both sides of the double-headed screw 15 are connected with a slide 17 through a threaded sleeve 16, one side of the slide 17 is fixedly connected with the positioning block 10, the double-headed screw 15 is driven by the driving component 23, and the threaded sleeve 16 can drive the two positioning blocks 10 to move in opposite directions, and the two positioning blocks 10 can support piles of different diameters through the V-shaped groove 11;

[0027] The inner wall of the support frame 6 is provided with a slide groove 7, and a slider 14 is fixedly provided on one side of the positioning block 10. The slider 14 is slidably connected to the slide groove 7. The slide groove 7 and the slider 14 can support and guide the positioning block 10, thereby ensuring the stability of the positioning block 10.

[0028] A slideway 9 is provided on one side of the support frame 6, and a slide 17 is slidably connected to the slideway 9. The slide 17 is welded to a threaded sleeve 16, which is firm and not easy to fall off. The threaded sleeve 16 is threadedly connected to the double-headed screw 15. The threaded sleeve 16 can convert the rotational motion of the double-headed screw 15 into the linear motion of the slide 17, so that the positioning block 10 can be horizontally displaced.

[0029] A guide block 18 is welded on the surface of the threaded sleeve 16, and a guide rail 19 is fixedly provided on the inner wall of one side of the chassis 13. The guide block 18 is slidably connected to the guide rail 19. A box cover 20 is provided on the top of the chassis 13. The guide block 18 and the guide rail 19 can guide the threaded sleeve 16 to prevent the threaded sleeve 16 from rotating.

[0030] Embodiment 2:

[0031] The adjustment component 5 includes a protective cover 501, a screw rod 502 and a support leg 505. The protective cover 501 is internally rotatably connected with the screw rod 502, and the screw rod 502 is threadedly connected with the threaded cylinder 503. A lifting platform 504 is fixedly provided on one side of the threaded cylinder 503. A support leg 505 is welded to the bottom end of the lifting platform 504. A pad 506 is fixedly provided at the bottom end of the support leg 505. A hand wheel 507 is fixedly provided on the top end of the screw rod 502. The screw rod 502 is rotated by the hand wheel 507. The screw rod 502 can drive the lifting platform 504 to rise and fall through the threaded cylinder 503, so that the height of the support leg 505 can be adjusted, and the support frame 6 can be leveled stably and reliably. The support leg 505 is not easy to slide after adjustment.

[0032] A door panel 508 is provided on the surface of the protective cover 501, the bottom end of the protective cover 501 is fixedly connected to the top end of the base plate 1, the surface of the base plate 1 is slidably connected to the support leg 505 through the rod groove 3, one side of the protective cover 501 is fixedly connected to one side of the angle iron 4, one side of the angle iron 4 is fixedly provided with a track 24, the lifting platform 504 is slidably connected to the track 24, the support leg 505 can be guided by the track 24 and the rod groove 3, the support leg 505 can be prevented from tilting, and the support effect on the support frame 6 can be guaranteed.

[0033] Embodiment 3:

[0034] The driving assembly 23 includes a transmission chamber 2301, a worm 2302 and a motor 2303. The transmission chamber 2301 is rotatably connected to the worm 2302. The double-headed screw 15 is transmission-connected to the worm 2302 through the worm gear 22. The motor 2303 is fixedly installed at the bottom end of the transmission chamber 2301. The output shaft of the motor 2303 is connected to the worm 2302. A cover plate 2304 is provided on one side of the transmission chamber 2301. The motor 2303 and the worm 2302 can be supported by the transmission chamber 2301, and the worm 2302 can be driven to rotate by the motor 2303.

[0035] One end of the double-headed screw 15 is fixedly connected to the transmission shaft 21, one end of the transmission shaft 21 is welded to the worm gear 22, the worm gear 22 is meshingly connected with the worm 2302, and the worm gear 22 and the transmission shaft 21 are both located inside the transmission chamber 2301. The worm 2302 can drive the transmission shaft 21 to rotate smoothly through the worm gear 22, thereby making the double-headed screw 15 rotate and realizing self-locking of the double-headed screw 15.

[0036] When in use, the staff first sets the support frame 6 on the surface of the pile through the channel 8, and then rotates the screw rod 502 through the handwheel 507 of the adjustment component 5. The screw rod 502 converts the rotational motion into the linear motion of the lifting platform 504 through the threaded tube 503. The vertical displacement of the lifting platform 504 can adjust the height of the support leg 505, and then the support frame 6 and the positioning block 10 can be leveled to avoid the tilt of the support frame 6 and the positioning block 10. The track 24 and the rod groove 3 can guide the support leg 505 to prevent the support leg 505 from tilting. The support leg 505 is not easy to slide after adjustment.

[0037] After the positioning block 10 is leveled, the staff drives the worm 2302 to rotate through the motor 2303 of the driving assembly 23, and the worm 2302 can drive the transmission shaft 21 to rotate smoothly through the worm wheel 22, and the transmission shaft 21 drives the double-headed screw 15 to rotate, and the double-headed screw 15 converts the rotational motion into the linear motion of the slide 17 through the threaded sleeve 16, and the slide 17 drives the two positioning blocks 10 to move in opposite directions. The two positioning blocks 10 can centrally support piles of different diameters through the V-shaped groove 11, so that the piles can be quickly positioned, and the position of the positioning block 10 can be adjusted steplessly;

[0038] When pile driving is carried out in the foundation pit support construction, the guide wheel 12 provided inside the V-groove 11 can reduce the friction between the pile column and the positioning block 10. When the pile column is compressed and vertically displaced, the guide wheel 12 can rotate, reducing the resistance during pile driving, ensuring the vertical movement of the pile column, and reducing the wear of the contact surface. After the pile column penetrates into the foundation pit, the worm 2302 is driven in reverse by the motor 2303, so that the two positioning blocks 10 move in opposite directions to each other, and the support frame 6 can be removed through the channel 8 without hindering the construction of the pile head.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A pile foundation guiding and positioning device for foundation pit support construction, comprising a base plate (1) and a support frame (6), characterized in that: The four corners at the top of the bottom plate (1) are respectively welded to the four corners at the bottom of the support frame (6) through angle irons (4); an adjustment component (5) is provided on one side of the angle iron (4); a pile groove (2) and a channel (8) are respectively provided on the surface of the bottom plate (1) and the surface of the support frame (6); positioning blocks (10) are slidably connected on both sides of the support frame (6); a V-shaped groove (11) is provided on one side of the positioning block (10); a guide wheel (12) is rotatably connected to the surface of the V-shaped groove (11); the support frame (6) is fixedly connected to a chassis (13); a double-headed screw (15) is rotatably connected inside the chassis (13); and the double-headed screw (15) is driven by a driving component (23) to rotate inside the chassis (13); both sides of the double-headed screw (15) are connected to a slide table (17) through a threaded sleeve (16); and one side of the slide table (17) is fixedly connected to the positioning block (10).

2. The pile foundation guiding and positioning device for foundation pit support construction according to claim 1 is characterized in that: The adjustment assembly (5) comprises a protective cover (501), a screw rod (502) and a support leg (505); the protective cover (501) is rotatably connected to the screw rod (502); the screw rod (502) is threadedly connected to a threaded barrel (503); a lifting platform (504) is fixedly provided on one side of the threaded barrel (503); a support leg (505) is welded to the bottom end of the lifting platform (504); a pad (506) is fixedly provided on the bottom end of the support leg (505); and a hand wheel (507) is fixedly provided on the top end of the screw rod (502).

3. The pile foundation guiding and positioning device for foundation pit support construction according to claim 2 is characterized in that: The surface of the protective cover (501) is provided with a door panel (508); the bottom end of the protective cover (501) is fixedly connected to the top end of the base plate (1); the surface of the base plate (1) is slidably connected to the support leg (505) via a rod groove (3); one side of the protective cover (501) is fixedly connected to one side of an angle iron (4); one side of the angle iron (4) is fixedly provided with a track (24); and the lifting platform (504) is slidably connected to the track (24).

4. The pile foundation guiding and positioning device for foundation pit support construction according to claim 1, characterized in that: The inner wall of the support frame (6) is provided with a slide groove (7), and a sliding block (14) is fixedly provided on one side of the positioning block (10), and the sliding block (14) is slidably connected to the slide groove (7).

5. The pile foundation guiding and positioning device for foundation pit support construction according to claim 1, characterized in that: A slideway (9) is provided on one side of the support frame (6), the slideway (17) is slidably connected to the slideway (9), the slideway (17) is welded to a threaded sleeve (16), and the threaded sleeve (16) is threadedly connected to a double-headed screw (15).

6. The pile foundation guiding and positioning device for foundation pit support construction according to claim 1, characterized in that: A guide block (18) is welded on the surface of the threaded sleeve (16), a guide rail (19) is fixedly provided on the inner wall of one side of the chassis (13), the guide block (18) is slidably connected to the guide rail (19), and a box cover (20) is provided on the top end of the chassis (13).

7. The pile foundation guiding and positioning device for foundation pit support construction according to claim 1, characterized in that: The driving assembly (23) comprises a transmission chamber (2301), a worm (2302) and a motor (2303); the transmission chamber (2301) is rotatably connected to the worm (2302); the double-headed screw (15) is transmission-connected to the worm (2302) via a worm gear (22); the motor (2303) is fixedly mounted at the bottom end of the transmission chamber (2301); the output shaft of the motor (2303) is connected to the worm (2302); and a cover plate (2304) is provided on one side of the transmission chamber (2301).

8. The pile foundation guiding and positioning device for foundation pit support construction according to claim 7, characterized in that: One end of the double-headed screw (15) is fixedly connected to a transmission shaft (21), one end of the transmission shaft (21) is welded to a worm wheel (22), the worm wheel (22) is meshingly connected to the worm (2302), and the worm wheel (22) and the transmission shaft (21) are both located inside the transmission chamber (2301).

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