阅读说明：本技术 一种超挖场地灌注桩定型化钢护筒 (Over-excavation site bored concrete pile regularization steel protects a section of thick bamboo ) 是由 王金伟 严同博 王康 罗少平 于 2020-05-06 设计创作，主要内容包括：本发明公开了一种超挖场地灌注桩定型化钢护筒,包括护筒,所述护筒的外部滑动套接有护套,所述护套的内壁上固定连接有多个滑块,所述护筒的外壁上设有与滑块对应的滑槽,所述滑槽内转动连接有螺杆,所述滑块上设有与螺杆对应的螺纹口,所述滑槽内固定连接有滑杆,所述滑块上设有与滑杆对应的滑口。本发明中通过钢护筒的设置,当灌注桩成孔完成,最后浇筑混凝土的时候,不用像之前先浇筑一部分部分,再砌筑砖胎膜加高用来浇筑另一部分,可以保证一次成型,加强了灌注桩的质量,又加快了施工进度。(The invention discloses a shaped steel casing for a cast-in-place pile in an over-excavation site, which comprises a casing, wherein a sheath is sleeved outside the casing in a sliding manner, a plurality of sliding blocks are fixedly connected to the inner wall of the sheath, a sliding groove corresponding to the sliding blocks is formed in the outer wall of the casing, a screw rod is connected in the sliding groove in a rotating manner, a threaded opening corresponding to the screw rod is formed in the sliding block, a sliding rod is fixedly connected in the sliding groove, and a sliding opening corresponding to the sliding rod is formed in the sliding block. According to the invention, through the arrangement of the steel pile casing, when the hole forming of the cast-in-place pile is completed and concrete is poured at last, one part does not need to be poured firstly, and then the masonry brick moulding bed is heightened to pour the other part, so that the one-step forming can be ensured, the quality of the cast-in-place pile is enhanced, and the construction progress is accelerated.)

1. The utility model provides an overexcavation place bored concrete pile regularization steel protects a section of thick bamboo, includes a section of thick bamboo (1), its characterized in that: the outer part of the protective cylinder (1) is sleeved with a protective sleeve (2) in a sliding manner, a plurality of sliding blocks (3) are fixedly connected onto the inner wall of the protective sleeve (2), sliding grooves corresponding to the sliding blocks (3) are formed in the outer wall of the protective cylinder (1), a screw rod (4) is connected into the sliding grooves in a rotating manner, threaded openings corresponding to the screw rod (4) are formed in the sliding blocks (3), sliding rods (5) are fixedly connected into the sliding grooves, sliding openings corresponding to the sliding rods (5) are formed in the sliding blocks (4), a cavity is formed in the bottom of the protective cylinder (1), one end of the screw rod (4) penetrates through the inner wall of the sliding grooves and extends into the cavity, a first gear (6) is fixedly sleeved at one extending end of the screw rod (4), a second gear (7) meshed with the first gear (6) is arranged in the cavity, and the second gear (7) and the inner wall of the cavity rotate, one end of the rotating rod (8) penetrates through the inner wall of the cavity and is fixedly connected with a knob (9), one end of the knob (9) is slidably inserted with a clamping rod (10), and a plurality of clamping grooves corresponding to the clamping rod (10) are arranged on the outer wall of the pile casing (1) in an encircling mode.

2. The over-excavation site cast-in-place pile finalized steel casing according to claim 1, characterized in that: a plurality of balls (11) are connected in the sliding opening in a sliding mode, and the edge of each ball (11) is in contact with the sliding rod (5).

3. The over-excavation site cast-in-place pile finalized steel casing according to claim 1, characterized in that: the rotating rod (8) is rotatably sleeved with a support sleeve (12), and one side of the support sleeve (12) is abutted to the inner wall of the cavity.

4. The over-excavation site cast-in-place pile finalized steel casing according to claim 1, characterized in that: the clamping sleeve (13) is fixedly sleeved at one end, close to the protective cylinder (1), of the clamping rod (10), and the pull rod (14) is fixedly connected at one end, far away from the clamping sleeve (13), of the clamping rod (10).

5. The over-excavation site cast-in-place pile finalized steel casing according to claim 1, characterized in that: the clamp rod (10) is sleeved with a spring (15), and two ends of the spring (15) are fixedly connected with the knob (9) and the pull rod (14) respectively.

6. The over-excavation site cast-in-place pile finalized steel casing according to claim 1, characterized in that: a plurality of balls (11) are connected in the sliding opening in a sliding mode, and the edge of each ball (11) is in contact with the sliding rod (5).

Technical Field

The invention relates to a shaped steel casing for a cast-in-place pile in an over-excavation site, and belongs to the technical field of construction of constructional engineering piles.

Background

Along with the development of the Chinese building market, the building construction speed is faster and faster, the building construction mode of high turnover is not few, the earthwork over-excavation problem occurs occasionally due to the fact that the construction period is tight, and after the earthwork over-excavation, the cast-in-place pile can be connected due to the fact that the effective pile length is not enough. The traditional mode is to use a brick moulding bed to protect the wall, but the construction speed is slow, and the progress is greatly influenced.

Disclosure of Invention

The invention aims to provide the shaped steel casing for the cast-in-place pile in the super-excavation site, which is convenient to operate, saves the construction cost and can improve the construction efficiency so as to overcome the defects in the prior art.

In order to achieve the purpose, the invention adopts the following technical scheme: a steel pile casing for shaping cast-in-place piles in an over-excavation site comprises a casing, wherein a protective sleeve is sleeved on the outer portion of the casing in a sliding mode, a plurality of sliding blocks are fixedly connected to the inner wall of the protective sleeve, sliding grooves corresponding to the sliding blocks are formed in the outer wall of the casing, a screw rod is connected in the sliding grooves in a rotating mode, threaded openings corresponding to the screw rod are formed in the sliding blocks, sliding rods are fixedly connected in the sliding grooves, sliding openings corresponding to the sliding rods are formed in the sliding blocks, a cavity is formed in the bottom of the casing, one end of the screw rod penetrates through the inner wall of the sliding groove and extends into the cavity, a first gear is fixedly sleeved at the extending end of the screw rod, a second gear meshed with the first gear is arranged in the cavity, the second gear and the inner wall of the cavity rotate through a rotating rod, one end of the rotating rod penetrates through the inner wall of the cavity, and a plurality of clamping grooves corresponding to the clamping rods are arranged on the outer wall of the protective cylinder in an encircling manner.

Preferably, a plurality of balls are connected in the sliding opening in a sliding mode, and the edges of the balls are in contact with the sliding rod.

Preferably, the rotating rod is rotatably sleeved with a support sleeve, and one side of the support sleeve abuts against the inner wall of the cavity.

Preferably, a clamping sleeve is fixedly sleeved at one end of the clamping rod close to the protective cylinder, and a pull rod is fixedly connected at one end of the clamping rod far away from the clamping sleeve.

Preferably, the clamping rod is sleeved with a spring, and two ends of the spring are fixedly connected with the knob and the pull rod respectively.

Preferably, a plurality of wedge-shaped reinforcing plates are fixedly connected to the outer wall of the sheath.

Due to the adoption of the technical scheme, the invention has the beneficial effects that:

1. according to the invention, through the arrangement of the steel pile casing, when the hole forming of the cast-in-place pile is finished and concrete is poured at last, one part does not need to be poured firstly, and then the masonry brick moulding bed is heightened to pour the other part, so that the one-step forming can be ensured, the quality of the cast-in-place pile is enhanced, and the construction progress is accelerated;

2. meanwhile, the screw rod can be driven to rotate by rotating the knob and under the meshing action between the first gear and the second gear, so that the height of the sheath can be adjusted through the sliding block.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic side view of the screw;

fig. 3 is a schematic structural view of a portion a of fig. 2.

Description of reference numerals: 1-protective cylinder, 2-protective sleeve, 3-sliding block, 4-screw rod, 5-sliding rod, 6-first gear, 7-second gear, 8-rotating rod, 9-knob, 10-clamping rod, 11-rolling ball, 12-supporting sleeve, 13-clamping sleeve, 14-pull rod, 15-spring and 16-wedge-shaped reinforcing plate.

Detailed Description

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 only a part of the embodiments of the present invention, and not all of the embodiments. 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.

The embodiment of the invention comprises the following steps: please refer to fig. 1 to 3, a shaped steel casing for a cast-in-place pile in an overbreak area, comprising a casing 1, a sheath 2 is sleeved outside the casing 1 in a sliding manner and used for placing deformation of the casing 1, a plurality of sliders 3 are fixedly connected to the inner wall of the sheath 2 and used for supporting the sheath 2, a sliding groove corresponding to the slider 3 is formed in the outer wall of the casing 1, a screw rod 4 is rotatably connected to the sliding groove and used for driving the slider 3 to move up and down, a threaded opening corresponding to the screw rod 4 is formed in the slider 3, a sliding rod 5 is fixedly connected to the sliding groove and used for supporting the slider 4, a sliding opening corresponding to the sliding rod 5 is formed in the slider 4, a cavity is formed in the bottom of the casing 1, and one end of the screw rod 4. Fixed cover of one end that screw rod 4 extends has connect first gear 6 for drive screw rod 4 rotates, be equipped with in the cavity with first gear 6 engaged with second gear 7, be used for driving first gear 6 and rotate, the inner wall of second gear 7 and cavity passes through bull stick 8 and rotates, the inner wall and the fixedly connected with knob 9 of cavity are run through to the one end of bull stick 8, be used for driving bull stick 8 and rotate, the one end of knob 9 slides and inserts and be equipped with kelly 10, be used for fixed knob 9, it is equipped with a plurality of draw-in grooves that correspond with kelly 10 to encircle on the outer wall of protecting section of thick bamboo 1. Sliding connection has a plurality of balls 11 in the sliding opening, the edge of ball 11 contacts with slide bar 5, reduce the frictional force between slide bar 5 and the sliding opening inner wall, it supports cover 12 to rotate to have cup jointed on the bull stick 8, the one side that supports cover 12 offsets with the inner wall of cavity, prevent that bull stick 8 from rocking, the fixed cover of one end that the kelly 10 is close to protecting section of thick bamboo 1 has connect cutting ferrule 13, the one end fixedly connected with pull rod 14 of cutting ferrule 13 is kept away from to kelly 10, the cover is equipped with spring 15 on the kelly 10, spring 15's both ends respectively with knob 9 and pull rod 14 fixed connection, be used for playing certain elastic support to kelly 10, a plurality of wedge-shaped gusset plates of fixedly connected with 16 on the outer wall of sheath 2, strengthen the.

In the embodiment, through the arrangement of the steel pile casing, when the hole forming of the cast-in-place pile is completed and concrete is poured at last, one part does not need to be poured firstly, and then the masonry brick moulding bed is heightened to pour the other part, so that the one-step forming can be ensured, the quality of the cast-in-place pile is enhanced, and the construction progress is accelerated; meanwhile, the screw rod 4 can be driven to rotate by rotating the knob 9 and under the meshing action between the first gear 6 and the second gear 7, so that the height of the sheath 2 can be adjusted through the sliding block 3.