Wall protection equipment for cast-in-situ bored pile

Abstract

The invention relates to the field of cast-in-situ bored piles, in particular to wall protection equipment for a cast-in-situ bored pile, which comprises a pile casing, a reinforcement cage arranged in the pile casing, a first centering clamping unit arranged on the pile casing, and a second centering clamping unit arranged on the first centering clamping unit, the butt joint unit is arranged between the first centering clamping unit and the second centering clamping unit; the first centering clamping unit comprises a fixed cylinder arranged on the protective cylinder, a movable cylinder arranged on the fixed cylinder and a centering clamping assembly arranged on the movable cylinder, a clamping power piece drives a rotating plate to rotate with a rotating shaft as the axis, a clamping plate clamps a reinforcement cage, the reinforcement cage is located in the middle of the protective cylinder, and the clamping power piece drives the rotating plate to rotate with the rotating shaft as the axis; and then the supporting barrel and the butt joint assembly are matched to drive the ends of the two sets of reinforcement cages to be close to each other on the coaxial basis, finally the grip is matched to drive the second centering clamping unit to rotate, easy butt joint of the ends of the reinforcement cages is rapidly achieved, and safety and convenience are achieved.

Description

Technical Field

[0001] The invention relates to the field of bored cast-in-place piles, in particular to a wall protection device for bored cast-in-place piles. Background Art

[0002] Bored cast-in-place piles are a commonly used deep foundation construction method, mainly used in high-rise buildings, bridges, docks and other projects. They have the advantages of high bearing capacity, strong adaptability and low construction noise. In order to ensure construction safety and prevent hole wall collapse, the hole wall needs to be supported and protected.

[0003] The mud wall protection method is a commonly used wall protection method. Mud is injected into the hole to prevent the hole wall from collapsing, and then a steel cage is placed in the hole to provide a support frame for the subsequent concrete. However, due to the deep length of the bored pile, it is generally necessary to place a section of the steel cage into the hole, clamp the upper end of the steel cage at the hole wall opening through a cross bar, and then dock with another section of the steel cage transported by a crane. In order to ensure the accurate connection of the steel cage, it is usually necessary to manually adjust the suspended steel cage and cooperate with the crane driver to connect the steel cage. The operation is difficult and inconvenient to operate. Summary of the invention

[0004] In view of the above or existing technologies, in order to ensure accurate connection of the steel cage, it is usually necessary to manually adjust the suspended steel cage and cooperate with the crane driver to connect the steel cage, which is difficult and inconvenient to operate. The present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a wall protection device for bored piles.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: including, a casing, a steel cage arranged in the casing, a first centering clamping unit arranged on the casing, a second centering clamping unit arranged on the first centering clamping unit, and a docking unit arranged between the first centering clamping unit and the second centering clamping unit; the first centering clamping unit includes, a fixed cylinder arranged on the casing, a movable cylinder arranged on the fixed cylinder, and a centering clamping assembly arranged on the movable cylinder; the second centering clamping unit has the same structure as the first centering clamping unit.

[0007] As a preferred solution of the wall protection equipment of the bored piles of the present invention, the central clamping assembly includes a rotating plate arranged on the fixed cylinder, a clamping plate arranged on the rotating plate, a fixed shaft arranged on the rotating plate and rotatably connected to the movable cylinder, a rotating shaft arranged on the rotating plate and rotatably connected to the fixed cylinder, and a clamping power member arranged on the movable cylinder.

[0008] As a preferred solution of the bored pile wall protection equipment of the present invention, the clamping power member includes a first motor arranged on the above, a first gear arranged on the first motor, a first gear groove arranged on the movable cylinder to match the first gear, and a rotating circle arranged on the movable cylinder; the first motor is fixedly arranged on the inner wall of the fixed cylinder; and a rotating groove matching the rotating circle is arranged on the inner wall of the fixed cylinder.

[0009] As a preferred solution of the bored pile wall protection equipment of the present invention, the docking unit includes a support tube arranged on the fixed tube, a docking assembly arranged on the support tube, and a docking power member arranged on the support tube.

[0010] As a preferred solution of the wall protection equipment of the bored piles of the present invention, the docking assembly includes a fixed block arranged on the support tube, a movable block slidably arranged in the fixed block, a connecting block arranged on the movable block, and a limiting groove arranged on the fixed block to cooperate with the connecting block.

[0011] As a preferred solution of the bored pile wall protection equipment of the present invention, the support tube is provided with an extrusion groove, the extrusion groove is inclinedly arranged on the support tube, and an observation port is arranged on the support tube; the limiting groove is a straight groove in the vertical direction.

[0012] As a preferred solution of the bored pile wall protection equipment of the present invention, the docking power component includes a second motor arranged on the support tube, a second gear arranged on the second motor, and a second gear groove arranged on the support tube to match the second gear; the second motor is fixedly arranged on one side of the fixed tube, and a protective cover is arranged on the outside.

[0013] As a preferred solution of the bored pile wall protection equipment of the present invention, the fixed block is fixedly arranged on the fixed cylinder; the movable block is provided with an arc-shaped limit block, and the second center clamping unit is provided with a limit circular groove matching the arc-shaped limit block.

[0014] As a preferred solution of the bored pile wall protection equipment of the present invention, a plurality of groups of handles are arranged on the outer wall of the second central clamping unit.

[0015] As a preferred solution of the bored pile wall protection equipment of the present invention, wherein: the two ends of the steel cage are respectively provided with a first connecting end and a second connecting end; the first connecting end and the second connecting end can be butt-jointed to align the centers of the two groups of the steel cages, and a high-temperature agent is provided between the first connecting end and the second connecting end.

[0016] The beneficial effects of the bored pile wall protection device of the present invention are as follows: the present invention drives the rotating plate to rotate with the rotating shaft as the axis through the clamping power member, so that the clamping plate clamps the steel cage and the steel cage is located in the middle of the casing, and then cooperates with the support tube and the docking assembly to drive the ends of the two groups of steel cages to approach each other on the basis of coaxiality, and finally cooperates with the handle to drive the second center clamping unit to rotate, so as to quickly realize the easy docking of the ends of the steel cage, which is safe and convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0018] Figure 1 The overall structural diagram of the bored pile wall protection equipment.

[0019] Figure 2 The present invention is a schematic structural diagram of the first central clamping unit of the bored pile wall protection equipment.

[0020] Figure 3 The present invention is a schematic diagram of the bottom cross-sectional structure of the fixed tube of the bored pile wall protection equipment.

[0021] Figure 4 Wall protection equipment for bored piles Figure 3 A magnified view of the structure in the middle.

[0022] Figure 5 A schematic diagram of the structure of the rotating plate of the bored pile wall protection equipment.

[0023] Figure 6 A schematic diagram of the structure of the support tube of the bored pile wall protection equipment.

[0024] Figure 7 A schematic diagram of the structure of the docking assembly of the bored pile protection equipment.

[0025] Figure 8 A schematic diagram of the structure of a handle of a bored pile wall protection device.

[0026] Fig. 9 Wall protection equipment for bored piles Figure 6 Enlarged view of the structure at point B in the middle.

[0027] Fig.10 Schematic diagram of the end structure of the steel cage of the bored pile wall protection equipment.

[0028] In the figure: 100, casing; 200, steel cage; 210, first connection end; 220, second connection end; 300; first center clamping unit; 310, fixed cylinder; 320, movable cylinder; 330, center clamping assembly; 331, rotating plate; 332, clamping plate; 333, fixed shaft; 334, rotating shaft; 335, clamping power member; 335a, first motor; 335b, first gear; 335c, first gear groove; 335d, rotating circle; 400, second center clamping unit; 410, handle; 420, rotating groove; 430, limiting circular groove; 500, docking unit; 510, support cylinder; 511, extrusion groove; 512, observation port; 520, docking assembly; 521, fixed block; 522, movable block; 522a, arc-shaped limiting block; 523, connecting block; 524, limiting groove; 530, docking power part; 531, second motor; 532, second gear; 533, second gear groove. DETAILED DESCRIPTION

[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0030] Example 1, reference Figure 1 , Figure 2 ,as well as Fig.10 , which is the first embodiment of the present invention, and provides a bored pile wall protection device, comprising: a casing 100, which is used to be placed at the hole mouth to play the role of fixing and supporting equipment, a steel cage 200 arranged in the casing 100, which is used to be placed in the hole through the casing 100 to play a supporting role for the subsequent concrete pouring, and a first center clamping unit 300 arranged on the casing 100, which is used to fix and clamp the upper end of the steel cage 200 entering the casing 100, and fix it to the middle position of the casing 100. The second center clamping unit 400 is arranged on the first center clamping unit 300 to ensure that the steel cage 200 entering the casing 100 is not skewed, and is used to fix and clamp the lower end of the next group of steel cages 200 that are about to enter the casing 100, and keep it coaxial with the steel cage 200 below, so as to facilitate the docking of the two groups of steel cages 200, and the docking unit 500 is arranged between the first center clamping unit 300 and the second center clamping unit 400, and is used to drive the ends of the upper and lower groups of steel cages 200 to dock; The first centering clamping unit 300 includes a fixed cylinder 310 fixedly arranged on the casing 100, a movable cylinder 320 fixedly arranged on the fixed cylinder 310 for supporting, and a centering clamping assembly 330 arranged on the movable cylinder 320, wherein the movable cylinder 320 is used to cooperate with the fixed cylinder 310 to support the centering clamping assembly 330, and the centering clamping assembly 330 is used to clamp the upper end of the steel cage 200 entering the casing 100; The second center clamping unit 400 has the same structure as the first center clamping unit 300 and is used to clamp the lower end of the next group of steel cages 200 waiting for docking.

[0031] The two ends of the steel cage 200 are respectively provided with a first connection end 210 and a second connection end 220 for docking two sets of steel cages 200; The first connection end 210 and the second connection end 220 can be butted together to align the centers of the two groups of steel cages 200, so that the two groups of steel cages 200 remain centered, avoiding affecting the overall strength of the connected steel cages 200, and preventing damage to the hole wall or getting stuck in the hole wall and unable to continue to probe downward. A high-temperature agent is arranged between the first connection end 210 and the second connection end 220. When the first connection end 210 and the second connection end 220 are butt-joined, molten metal generated by the high-temperature agent is filled between the first connection end 210 and the second connection end 220 to achieve a fixed connection.

[0032] In summary, the casing is buried first. After a sufficient amount of mud is poured into the hole, the steel cage 200 is placed into the hole through the casing 100 by a crane. When most of the steel cage 200 enters the hole, the upper part of the steel cage 200 is clamped by the center clamping assembly 330, so that the upper end of the steel cage 200 is fixed and exposed above the casing 100. At this time, the steel cage 200 is located at the center position of the first center clamping unit 300. At this time, the next group of steel cages 200 are transported by a crane. At this time, this group of steel cages 200 is close to the steel cage 200 in the casing 100, and the new steel cage 200 is hoisted above the casing 100 and close to the steel cage 200 below. At this time, the docking unit 500 is notified to drive the second center clamping unit 400 to rise until the upper The lower part of the steel cage 200 enters the second central clamping unit 400, and the second central clamping unit 400 is controlled to clamp the upper steel cage 200. At this time, the new steel cage 200 is located at the center of the second central clamping unit 400. Through the docking unit 500, the two groups of steel cages 200 are in a coaxial state under the action of the first central clamping unit 300 and the second central clamping unit 400. At this time, the second central clamping unit 400 is controlled by the docking unit 500 to approach the first central clamping unit 300. When the first connecting ends 210 and the second connecting ends 220 of the two groups of steel cages 200 are docked with each other, the first connecting ends 210 and the second connecting ends 220 are fixed by the high-temperature agent to complete the docking of the two groups of steel cages 200. Example 2, reference Figure 1-Figure 5 , which is the second embodiment of the present invention, and is different from the previous embodiment in that the steel cage 200 is centrally clamped. Compared with Example 1, further, the center clamping assembly 330 includes a rotating plate 331 arranged on the fixed cylinder 310, a clamping plate 332 arranged on the rotating plate 331, a fixed shaft 333 arranged on the rotating plate 331 and rotatably connected to the movable cylinder 320, a rotating shaft 334 arranged on the rotating plate 331 and rotatably connected to the fixed cylinder 310, and a clamping power member 335 arranged on the movable cylinder 320. The rotating plate 331 is used to rotate to drive the clamping plate 332 to clamp the steel cage 200 at the center of the movable cylinder 320. The fixed shaft 333 is used to cooperate with the rotation of the movable cylinder 320 to drive the rotating plate 331 to rotate. The rotating shaft 334 is used as the axis of rotation of the rotating plate 331. The clamping power member 335 is used to generate power to rotate the movable cylinder 320 relative to the fixed cylinder 310, drive the rotating plate 331 to rotate, and thereby drive the clamping plate 332 to clamp the steel cage 200.

[0033] The clamping power member 335 includes a first motor 335a disposed on 302 for generating power, a first gear 335b disposed on the first motor 335a for cooperating with the first motor 335a to rotate, a first gear groove 335c disposed on the movable cylinder 320 for cooperating with the first gear 335b for cooperating with the rotation of the first gear 335b to drive the movable cylinder 320 to rotate, and the rotation of the movable cylinder 320 drives the rotating plate 331 to rotate, and a rotating ring 335d disposed on the movable cylinder 320 for cooperating with the first gear groove 335c to drive the movable cylinder 320 to rotate on the inner wall of the fixed cylinder 310; The first motor 335a is fixedly disposed on the inner wall of the fixing cylinder 310, and the fixing cylinder 310 protects the first motor 335a, thereby increasing the stability of the first motor 335a during operation; A rotating groove 420 matching the rotating circle 335d is provided on the inner wall of the fixed cylinder 310. When the first gear 335b drives the first gear groove 335c to rotate, the movable cylinder 320 is rotated through the cooperation of the rotating circle 335d and the rotating groove 420, and the movable cylinder 320 is supported.

[0034] The rest of the structure is the same as that of Example 1.

[0035] In summary, when the crane puts the steel cage 200 into the hole through the casing 100, when most of the steel cage 200 enters the hole, the first motor 335a is started to drive the first gear slot 335c to rotate through the first gear 335b, and the movable cylinder 320 rotates, and the rotating plate 331 is driven to rotate with the rotating shaft 334 as the axis through the fixed shaft 333. At this time, the rotating plate 331 pushes the clamping plate 332 to the center of the movable cylinder 320, and the upper part of the steel cage 200 is clamped by the cooperation of multiple groups of movable cylinders 320. Due to the action of the movable cylinder 320, the movement of the clamping plate 332 is synchronized, so when the clamping plate 332 clamps the steel cage 200, the steel cage 200 is located at the center of the movable cylinder 320; At this time, the next group of steel cages 200 are transported by a crane, and the new steel cages 200 are moved above the casing 100. At this time, the new steel cages 200 are controlled to descend, and the second center clamping unit 400 is driven to rise by the docking unit 500. When the lower end of the upper steel cage 200 passes through the second center clamping unit 400, the lower part of the upper steel cage 200 is clamped by the second center clamping unit 400. At this time, the upper steel cage 200 is clamped and fixed at the center of the second center clamping unit 400. At this time, the two groups of steel cages 200 are in a coaxial state under the action of the first center clamping unit 300 and the second center clamping unit 400. At this time, the second center clamping unit 400 is driven to approach the first center clamping unit 300 by the docking unit 500, and the rotation angle of the upper steel cage 200 is adjusted during the process, so that the first connection end 210 and the second connection end 220 are successfully docked and fixed. At this time, the first motor 335a controls the movable cylinder 320 to reverse, so that the clamping plate 332 releases the clamping of the two groups of steel cages 200; At this time, the crane is controlled to continue to lower the connected steel cage 200 until most of the upper steel cage 200 enters the hole. At this time, the first motor 335a drives the first gear 335b to control the movable cylinder 320 to rotate, and the rotating plate 331 drives the clamping plate 332 to clamp the upper part of the upper steel cage 200, and make the end exposed above the casing 100. At this time, the next steel cage 200 can be hoisted by the crane, and the above process is repeated for docking.

[0036] Example 3, reference Figure 1-Figure 10 , which is the second embodiment of the present invention, and is different from the previous embodiment in that the ends of the steel cage 200 are butt-jointed. Compared with the first embodiment, further, the butt-jointing unit 500 comprises a support cylinder 510 disposed on the fixed cylinder 310, a butt-jointing assembly 520 disposed on the support cylinder 510, and a butt-jointing power member 530 disposed on the support cylinder 510, and the support cylinder 510 is used to cooperate with the butt-jointing power member 530 to drive the butt-jointing assembly 520 to move, and adjust the distance from the second centering clamping unit 400 to the first centering clamping unit 300.

[0037] Among them, the docking assembly 520 includes a fixed block 521 arranged on the support tube 510, a movable block 522 slidably arranged in the fixed block 521, a connecting block 523 arranged on the movable block 522, and a limiting groove 524 arranged on the fixed block 521 to cooperate with the connecting block 523. The fixed block 521 is used to slide up and down with the supporting movable block 522, the connecting block 523 is used to drive the movable block 522 to move, and the limiting groove 524 is used to limit the moving direction of the connecting block 523 so that the connecting block 523 can only move up and down.

[0038] The support tube 510 is provided with an extrusion groove 511, which is inclined on the support tube 510, and is used to squeeze the connection block 523 through the extrusion groove 511 when the support tube 510 rotates, so as to drive the connection block 523 to move, thereby driving the movable block 522 to move. The support tube 510 is provided with an observation port 512 for observing the docking state of the first connection end 210 and the second connection end 220; The limiting groove 524 is a straight groove in the vertical direction, and is used to cooperate with the extrusion groove 511 . When the extrusion groove 511 produces extrusion on the connecting block 523 , the connecting block 523 supports and drives the movable block 522 to move in the direction of the limiting groove 524 .

[0039] The docking power member 530 includes a second motor 531 disposed on the support tube 510 for generating power, a second gear 532 disposed on the second motor 531 for rotating in cooperation with the second motor 531, and a second gear groove 533 disposed on the support tube 510 for cooperating with the second gear 532 for driving the support tube 510 to rotate in cooperation with the second gear 532; The second motor 531 is fixedly disposed on one side of the fixing tube 310 and is provided with a protective cover on the outside to prevent workers from being accidentally injured when approaching.

[0040] The fixing block 521 is fixedly disposed on the fixing tube 310; An arc-shaped limit block 522a is provided on the movable block 522, and a limit circular groove 430 cooperating with the arc-shaped limit block 522a is provided on the second center clamping unit 400. Through the cooperation between the arc-shaped limit block 522a and the limit circular groove 430, the second center clamping unit 400 can rotate left and right on the movable block 522, so as to adjust the rotation of the steel cage 200 clamped by the second center clamping unit 400 so that it can be quickly docked with the steel cage 200 below.

[0041] A plurality of handles 410 are disposed on the outer wall of the second central clamping unit 400 for driving the second central clamping unit 400 to rotate.

[0042] The rest of the structure is the same as that of Example 2.

[0043] In summary, when the steel cage 200 below is clamped and fixed by the clamping plate 332, the new steel cage 200 is hoisted above the casing 100 by a crane, and the second motor 531 is started, and the second gear groove 533 is driven to rotate through the second gear 532. At this time, the second gear groove 533 drives the support tube 510 to rotate, and the extrusion groove 511 rotates to squeeze the connecting block 523. At this time, the limiting groove 524 is cooperated to make the movable block 522 only move upward, and the movable block 522 drives the second center clamping unit 400 to move upward; At this time, the lower part of the upper steel cage 200 is clamped by the second center clamping unit 400. At this time, the second motor 531 is controlled to reverse, driving the support tube 510 to reverse. At this time, the extrusion groove 511 cooperates with the limit groove 524 to drive the connecting block 523 to move downward. At this time, the second center clamping unit 400 moves downward with the movable block 522. At this time, the second center clamping unit 400 drives the lower part of the upper steel cage 200 to approach the upper part of the lower steel cage 200. When the first connection end 210 and the second connection end 220 are close, at this time, the staff drives the second center clamping unit 400 to rotate by rotating the handle 410, and drives the upper steel cage 200 to rotate, so that each group of first connection ends 210 and second connection ends 220 are engaged with each other.

[0044] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A bored pile wall protection device, characterized in that: include, A casing (100), a steel cage (200) arranged in the casing (100), a first central clamping unit (300) arranged on the casing (100), a second central clamping unit (400) arranged on the first central clamping unit (300), and a docking unit (500) arranged between the first central clamping unit (300) and the second central clamping unit (400); The first centering clamping unit (300) comprises a fixed cylinder (310) arranged on the protective cylinder (100), a movable cylinder (320) arranged on the fixed cylinder (310), and a centering clamping assembly (330) arranged on the movable cylinder (320); The second centering clamping unit (400) has the same structure as the first centering clamping unit (300).

2. The bored pile wall protection device according to claim 1, characterized in that: The center clamping assembly (330) comprises a rotating plate (331) arranged on the fixed cylinder (310), a clamping plate (332) arranged on the rotating plate (331), a fixed shaft (333) arranged on the rotating plate (331) and rotatably connected to the movable cylinder (320), a rotating shaft (334) arranged on the rotating plate (331) and rotatably connected to the fixed cylinder (310), and a clamping power member (335) arranged on the movable cylinder (320).

3. The bored pile wall protection device according to claim 2, characterized in that: The clamping power member (335) comprises a first motor (335a) provided on the (302), a first gear (335b) provided on the first motor (335a), a first gear groove (335c) provided on the movable cylinder (320) and matching with the first gear (335b), and a rotating ring (335d) provided on the movable cylinder (320); The first motor (335a) is fixedly disposed on the inner wall of the fixed cylinder (310); A rotation groove (420) matching the rotation circle (335d) is provided on the inner wall of the fixed cylinder (310).

4. The bored pile wall protection device according to claim 3, characterized in that: The docking unit (500) comprises a support cylinder (510) arranged on the fixing cylinder (310), a docking assembly (520) arranged on the support cylinder (510), and a docking power member (530) arranged on the support cylinder (510).

5. The bored pile wall protection device according to claim 4, characterized in that: The docking assembly (520) comprises a fixed block (521) arranged on the support tube (510), a movable block (522) slidably arranged in the fixed block (521), a connecting block (523) arranged on the movable block (522), and a limiting groove (524) arranged on the fixed block (521) and cooperating with the connecting block (523).

6. The bored pile wall protection device according to claim 5, characterized in that: The support tube (510) is provided with an extrusion groove (511), the extrusion groove (511) is arranged obliquely on the support tube (510), and the support tube (510) is provided with an observation port (512); The limiting groove (524) is a straight groove in the vertical direction.

7. The bored pile wall protection device according to claim 6, characterized in that: The docking power member (530) comprises a second motor (531) provided on the support tube (510), a second gear (532) provided on the second motor (531), and a second gear groove (533) provided on the support tube (510) and matching with the second gear (532); The second motor (531) is fixedly arranged on one side of the fixing cylinder (310), and a protective cover is arranged on the outside.

8. The bored pile wall protection device according to claim 7, characterized in that: The fixing block (521) is fixedly disposed on the fixing cylinder (310); The movable block (522) is provided with an arc-shaped limiting block (522a), and the second center clamping unit (400) is provided with a limiting circular groove (430) that matches the arc-shaped limiting block (522a).

9. The bored pile wall protection device according to claim 8, characterized in that: A plurality of groups of handles (410) are arranged on the outer wall of the second central clamping unit (400).

10. The bored pile wall protection device according to claim 9, characterized in that: The two ends of the steel cage (200) are respectively provided with a first connecting end (210) and a second connecting end (220); The first connection end (210) and the second connection end (220) can be butted together to align the centers of the two groups of steel cages (200), and a high-temperature agent is provided between the first connection end (210) and the second connection end (220).

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