Device for preventing reinforcement cage from floating upwards during concrete pouring of pile foundation

Abstract

The utility model relates to the field of building construction, in particular to a device for preventing a reinforcement cage from floating upwards when concrete is poured into a pile foundation, which comprises a support, an inserting groove matched with the top of a steel casing in an inserting mode is arranged at the bottom of the support, and a through hole is arranged at the bottom of the support at the position corresponding to the inserting groove. The top of the support is connected with a sleeve through a telescopic rod, the two ends of the telescopic rod are rotationally connected with the support and the sleeve respectively, and the sleeve is matched with a vertical main reinforcement of a reinforcement cage in a sleeved mode. The device is simple and easy to operate, can be reused, and can reduce the construction cost.

Description

Technical Field

[0001] The utility model relates to the field of building construction, in particular to a device for preventing a steel cage from floating up when pouring concrete on a pile foundation. Background Art

[0002] Cast-in-place piles have the advantages of large single pile bearing capacity and strong shear and bending resistance, and are currently the most widely used type of pile. During the process of pouring concrete in cast-in-place piles, the steel cage will float up (concrete flows out from the bottom of the guide tube and flows from bottom to top in the pile hole, and the top support force on the steel cage will push the steel cage to float up), which will affect the construction quality of cast-in-place piles.

[0003] In the prior art, after the steel cage is installed in place, three hangers are usually welded to the vertical main bars and steel casing of the steel cage to prevent the steel cage from floating up when pouring concrete. This measure is not only labor-intensive (the welded hangers need to be removed later), but also causes waste of steel bars. Utility Model Content

[0004] Based on the above situation, the purpose of the utility model is to provide a device to prevent the steel cage from floating when the pile foundation is poured with concrete. The utility model adopts the following technical solutions:

[0005] The utility model provides a device for preventing a steel cage from floating up when pouring concrete in a pile foundation, comprising a bracket, a slot for plugging and cooperating with the top of a steel casing is provided at the bottom of the bracket, a through hole is provided at the bottom of the bracket at a position corresponding to the slot, the top of the bracket is connected to a sleeve through a telescopic rod, the two ends of the telescopic rod are respectively rotatably connected to the bracket and the sleeve, and the sleeve is sleeved and matched with the vertical main reinforcement of the steel cage.

[0006] Preferably, the telescopic rod comprises a first rod body and a second rod body, the first rod body is sleeved on the outside of the second rod body, the upper end of the first rod body is rotatably connected to the top of the bracket, and the lower end of the second rod body is rotatably connected to the sleeve;

[0007] The first rod body is provided with a positioning hole, and the second rod body is provided with a plurality of adjustment holes along the axial direction. The positioning hole is fixed to one of the adjustment holes via a pin shaft.

[0008] Preferably, the sleeve comprises a sleeve head and a sleeve body, the sleeve head is detachably connected to the sleeve body, and the sleeve head is rotatably connected to the telescopic rod.

[0009] Preferably, a threaded column is provided at the top of the cylinder body, a threaded hole is provided at the bottom of the cylinder head, and the threaded column is threadedly connected to the threaded hole.

[0010] Compared with the prior art, the beneficial technical effects of the utility model are:

[0011] The utility model is simple and easy to operate, can be reused, and can reduce construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The utility model will be further described below in conjunction with the accompanying drawings.

[0013] Figure 1 It is a structural schematic diagram of a device for preventing a steel cage from floating up when pouring concrete in a pile foundation according to the utility model;

[0014] Figure 2 It is a structural schematic diagram of the sleeve of the utility model;

[0015] Figure 3 It is a schematic diagram of the use of the utility model.

[0016] Explanation of the reference numerals: 1. bracket; 101. slot; 102. through hole; 2. telescopic rod; 201. first rod body; 202. second rod body; 203. positioning hole; 204. adjustment hole; 3. sleeve; 301. sleeve head; 302. sleeve body; 303. threaded column; 304. threaded hole; 4. steel casing. DETAILED DESCRIPTION

[0017] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments.

[0018] like Figure 1 As shown, the present embodiment discloses a device for preventing a steel cage from floating up when pouring concrete in a pile foundation, comprising a bracket 1, a slot 101 for plugging and cooperating with the top of a steel casing 4 is provided at the bottom of the bracket 1, a through hole 102 is provided at the bottom of the bracket 1 at a position corresponding to the slot 101, the top of the bracket 1 is connected to the sleeve 3 through a telescopic rod 2, both ends of the telescopic rod 2 are rotatably connected to the bracket 1 and the sleeve 3 respectively, and the sleeve 3 is sleeved with the vertical main reinforcement of the steel cage.

[0019] In this embodiment, the telescopic rod 2 includes a first rod body 201 and a second rod body 202. The first rod body 201 is sleeved on the outside of the second rod body 202. The upper end of the first rod body 201 is rotatably connected to the top of the bracket 1, and the lower end of the second rod body 202 is rotatably connected to the sleeve 3. A positioning hole 203 is provided on the first rod body 201, and a plurality of adjustment holes 204 are axially provided on the second rod body 202. The positioning hole 203 is fixed to one of the adjustment holes 204 by a pin.

[0020] In this embodiment, Figure 2As shown, the sleeve 3 includes a sleeve head 301 and a sleeve body 302, the sleeve head 301 is detachably connected to the sleeve body 302, the sleeve head 301 is rotatably connected to the telescopic rod 2, a threaded column 303 is provided on the top of the sleeve body 302, a threaded hole 304 is provided on the bottom of the sleeve head 301, and the threaded column 303 is threadedly connected to the threaded hole 304. Through the detachable connection between the sleeve head 301 and the sleeve body 302, the sleeve body 302 of different sizes can be replaced to adapt to the vertical main bars of the steel cage with different diameters.

[0021] like Figure 3 As shown, the use of the utility model is as follows:

[0022] Insert the slot 101 at the bottom of the bracket 1 into the steel casing 4, and then adjust the length of the telescopic rod 2 according to the position of the vertical main reinforcement of the steel cage so that the sleeve 3 is sleeved on the vertical main reinforcement of the steel cage, and then drill holes on the steel casing 4 according to the position of the through hole 102 on the bracket 1 corresponding to the position on the steel casing 4. After the drilling of the steel casing 4 is completed, the anti-drop pin is passed through the through hole 102 on the bracket 1 and the drilled hole on the steel casing 4, thereby fixing the bracket 1.

[0023] It should be noted that the number of devices used depends on the specific construction environment and is generally not less than three.

[0024] The embodiments described above are only descriptions of the preferred methods 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 fall within the protection scope determined by the claims of the present invention.

Claims

1. A device for preventing a steel cage from floating up when pouring concrete in a pile foundation, characterized in that: The invention comprises a bracket (1), wherein the bottom of the bracket (1) is provided with a slot (101) which is plugged into and matched with the top of a steel casing (4), and the bottom of the bracket (1) is provided with a through hole (102) at a position corresponding to the slot (101). The top of the bracket (1) is connected to a sleeve (3) via a telescopic rod (2), and the two ends of the telescopic rod (2) are respectively rotatably connected to the bracket (1) and the sleeve (3), and the sleeve (3) is sleeved and matched with the vertical main reinforcement of the steel cage.

2. The device for preventing the steel cage from floating up when pouring concrete in pile foundation according to claim 1 is characterized in that: The telescopic rod (2) comprises a first rod body (201) and a second rod body (202); the first rod body (201) is sleeved on the outside of the second rod body (202); the upper end of the first rod body (201) is rotatably connected to the top of the bracket (1); and the lower end of the second rod body (202) is rotatably connected to the sleeve (3); The first rod body (201) is provided with a positioning hole (203), and the second rod body (202) is provided with a plurality of adjustment holes (204) along the axial direction, and the positioning hole (203) is fixed to one of the adjustment holes (204) via a pin shaft.

3. The device for preventing the steel cage from floating up when pouring concrete in pile foundation according to claim 1, characterized in that: The sleeve (3) comprises a sleeve head (301) and a sleeve body (302); the sleeve head (301) is detachably connected to the sleeve body (302); and the sleeve head (301) is rotatably connected to the telescopic rod (2).

4. The device for preventing the steel cage from floating up when pouring concrete in pile foundation according to claim 3 is characterized in that: A threaded column (303) is provided at the top of the cylinder (302), a threaded hole (304) is provided at the bottom of the cylinder head (301), and the threaded column (303) is threadedly connected to the threaded hole (304).

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