CN218581207U - Tool for pulling out steel bar in embedded line pipe - Google Patents

Abstract

The utility model relates to an instrument is extracted to reinforcing bar in pre-buried spool, including being used for the cover to establish the fixing base that the confession people that holds in line box top, rotate on the fixing base and be equipped with the loose collar, the interior direction cartridge of loose collar has the screw rod that extends from top to bottom, gu be fixed with the screw thread on the fixed ring and twist the welded nut outside the screw rod soon, the lower extreme of screw rod has the lantern ring that is used for the cover to establish on the reinforcing bar in the line box. The main structure does not need to be damaged, and the whole operation is convenient, the structure is simple and the practicability is strong.

Description

Tool for pulling out steel bar in embedded line pipe

Technical Field

The utility model relates to a building structure construction hand tool field, especially a reinforcing bar extracting tool in pre-buried spool.

Background

In the construction of building site major structure, ground or wall concrete are inside to be laid pre-buried spool, at the pre-buried wired box of concrete surface simultaneously, and the one end of pre-buried spool extends to link up to the line box in, convenient subsequent pipeline installation construction. In the actual use process, the two ends of the line pipe are communicated without plugging, and individual construction workers can intentionally insert reinforcing steel bars into the embedded line pipe to block and damage the embedded line pipe, the reinforcing steel bars need to be removed firstly when the line pipe is threaded, the existing removing mode is to remove a part of concrete, cut off the embedded line pipe, pull out the reinforcing steel bars, repair the concrete net after the line pipe is taken over, and the whole process is time-consuming and labor-consuming and causes damage to the main structure.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an instrument is extracted to reinforcing bar in pre-buried spool to need destroy the wasting of time and energy (phenomenon) that concrete major structure leads to when extracting the reinforcing bar in the pre-buried spool among the solution prior art, cause the problem of destruction to major structure.

In order to solve the problem, the utility model relates to an instrument is extracted to reinforcing bar in pre-buried spool adopts following technical scheme:

the utility model provides a tool is extracted to reinforcing bar in pre-buried line pipe, including being used for the cover to establish the fixing base that supplies the people to grip above the line box, rotate on the fixing base and be equipped with the loose collar, the direction cartridge has the screw rod that extends from top to bottom in the loose collar, be fixed with the screw thread on the loose collar and revolve the welded nut who twists outside the screw rod, the lower extreme of screw rod has the lantern ring that is used for the cover to establish on the reinforcing bar in the line box.

Furthermore, the pulling tool further comprises a supporting seat used for supporting between the outer side of the wire box and the fixed seat, and the fixed seat is inserted into the upper end of the supporting cylinder.

Furthermore, the supporting seat is of a sleeve-shaped structure, and the outer side wall of the fixed seat is provided with an annular edge which is used for being matched with the upper limiting stop and the lower limiting stop of the supporting seat.

Furthermore, the fixed seat and the movable ring are rotatably assembled through a thrust ball bearing, and the movable ring is fixedly connected with the inner ring of the bearing.

Further, the lantern ring is a nut fixed to the lower end of the screw in a welding mode.

Further, the axis of the nut is perpendicular to the axis of the screw.

The utility model has the advantages as follows: compared with the prior art, the utility model relates to an instrument is extracted to reinforcing bar in pre-buried spool, in actual use, insert the screw rod to the activity intra-annular, and with welded nut threaded connection, then insert the lantern ring of screw rod to pre-buried line incasement, the cover is in the one end of reinforcing bar, workman's handheld fixing base, an operation spanner cover is established on welded nut, pull welded nut, welded nut is at rotatory in-process, because the screw rod is restricted unable rotation on the reinforcing bar, and welded nut's upper and lower position is restricted, self axis rebound can be followed to the screw rod this moment, thereby stretch out the reinforcing bar, tilt up is outside line box, then the workman draws the reinforcing bar, extract can with the reinforcing bar, this instrument is in the use, need not destroy the major structure, and overall operation is convenient, moreover, the steam generator is simple structure, the practicality is stronger.

Drawings

In order to more clearly illustrate the technical solution of the embodiments of the present invention, the drawings needed to be used in the embodiments are briefly described as follows:

fig. 1 is a schematic structural view of a specific embodiment of the tool for pulling out the steel bar in the embedded wire pipe of the present invention;

FIG. 2 is a half-sectional view of FIG. 1;

fig. 3 is a state diagram of the tool in fig. 1.

Description of the reference numerals: 1-a fixed seat; 2-a movable ring; 3-a bearing; 4-welding a nut; 5-a screw; 6-a collar; 7-a support cylinder; 8-embedding a wire box; 9-embedding a line pipe; 10-reinforcing steel bars.

Detailed Description

In order to make the technical purpose, technical solution and advantageous effects of the present invention clearer, the technical solution of the present invention is further described below with reference to the accompanying drawings and specific embodiments. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention, i.e., the described embodiments are merely illustrative of some, but not all, of the embodiments of the invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

The utility model relates to a concrete embodiment of instrument is extracted to reinforcing bar in pre-buried spool, as shown in fig. 1 to fig. 3, in this embodiment, the reinforcing bar is extracted the instrument and is established fixing base 1 that supplies the people to grip above pre-buried line box 8 including being used for the cover in the pre-buried spool, it is equipped with loose ring 2 to rotate on the fixing base 1, fixing base 1 is the ring platform structure, the centre bore has been arranged to the top inboard of fixing base 1, the upper end of centre bore is equipped with the annular along the department ring outward, be equipped with bearing 3 in the annular, realize the rotation assembly between fixing base 1 and the loose ring 2 through bearing 3. The angular contact ball bearing of the bearing 3 in this embodiment is divided into an inner ring and an outer ring, the fixed seat 1 and the outer ring are assembled together, the movable ring 2 and the inner ring are fixedly assembled, meanwhile, a screw rod 5 which extends up and down is inserted into the movable ring 2 in a guiding manner, a welding nut 4 which is screwed outside the screw rod 5 in a threaded manner is fixed on the movable ring, and a lantern ring 6 which is used for being sleeved on a steel bar 10 in a wire box is arranged at the lower end of the screw rod 5.

When in actual use, because weld nut 4 and loose collar welded fastening, 1 circumference free rotation of weld nut 4 fixing base relatively, insert screw rod 5 to loose collar 2 in, and with weld nut 4 threaded connection, then insert the lantern ring 6 of screw rod 5 to pre-buried line box 8 in, the cover is at the one end of inserting reinforcing bar 10 to pre-buried spool 9 in, fixing base 1 is handed to workman, a manual operation spanner cover is established on weld nut 4, pull weld nut 4, weld nut 4 is at rotatory in-process, because screw rod 5 is restricted unable the rotation on reinforcing bar 10, and weld nut 4's upper and lower position is restricted, screw rod 5 can be followed self axis rebound this moment, thereby stretch out reinforcing bar 10, tilt up outside the line box, then the workman draws reinforcing bar 10, extract reinforcing bar 10 can just with reinforcing bar 10

Meanwhile, in order to facilitate force application of workers and pulling, bending and pulling out the reinforcing steel bar 10 conveniently, the pulling-out tool further comprises a supporting cylinder 7 used for supporting the outside of the wire box and the fixing seat 1, the fixing seat 1 is inserted into the upper end of the supporting cylinder 7, and a ring edge used for being matched with the supporting cylinder 7 in an up-and-down limiting and stopping mode is arranged on the outer side wall of the fixing seat 1. The supporting cylinder 7 can effectively increase the height of the fixing seat 1 relative to the pre-buried wire box 8, and the fixing seat 1 can be prevented from being directly contacted with the concrete structure on the peripheral side of the wire box to cause the fixing seat to be incapable of being effectively held.

For the convenience of assembly, the collar 6 in this embodiment is a nut fixed by welding to the lower end of the screw 5. Meanwhile, in order to conveniently sleeve the lantern ring 6 on the steel bar 10, the axis of the nut is perpendicular to the axis of the screw rod 5.

Of course, in other embodiments, the supporting cylinder 7 may be designed as a hoop structure, or as a block structure offset from the bottom side of the fixing base 1.

In other embodiments, the fixing base 1 may not be provided with the supporting cylinder 7, and the supporting cylinder 7 and the fixing base 1 are directly designed into a cylinder structure after being fixedly connected together.

The fixing base 1 and the supporting cylinder 7 in this embodiment are coaxially and rotatably assembled, and in other embodiments, the fixing base 1 and the supporting cylinder 7 may be fixed as a whole.

In other embodiments, the collar 6 may have a C-shaped opening structure, which opens to the horizontal side to facilitate nesting.

In other embodiments, the bearing 3 may adopt other bearing structures with circumferential bearing capacity, such as a flat pressure thrust ball bearing, and the bearing is divided into a bottom ring and a top ring, the balls are clamped between the bottom ring and the top ring, when assembling, the fixed seat is connected with the bottom ring, and the movable ring is connected with the top ring.

Finally, it should be noted that: the above-mentioned embodiments are only used for illustrating but not limiting the technical solution of the present invention, and any equivalent replacement and modification or partial replacement which do not depart from the spirit and scope of the present invention should be covered within the protection scope of the claims of the present invention.

Claims (6)

1. The tool for extracting the steel bar in the embedded wire pipe is characterized by comprising a fixed seat which is used for covering the fixed seat above a wire box and is used for holding by people, a movable ring is rotatably assembled on the fixed seat, a screw rod which extends up and down is inserted in the movable ring in a guiding mode, a welding nut which is screwed outside the screw rod in a threaded mode is fixed on the movable ring, and a lantern ring which is used for being sleeved on the steel bar in the wire box is arranged at the lower end of the screw rod.

2. The tool for pulling out the steel bars in the embedded line pipe as claimed in claim 1, further comprising a supporting seat for supporting between the outside of the line box and the fixing seat, wherein the fixing seat is inserted inside the upper end of the supporting cylinder.

3. The tool for pulling out the steel bars in the embedded line pipe as claimed in claim 2, wherein the supporting seat is of a sleeve-shaped structure, and the outer side wall of the fixing seat is provided with a ring edge for being matched with the upper and lower limiting stops of the supporting seat.

4. The tool for pulling out the steel bars in the embedded wire pipe according to claim 2, wherein the fixed seat and the movable ring are rotatably assembled through a thrust ball bearing, and the movable ring is fixedly connected with an inner ring of the bearing.

5. The tool for pulling out the steel bars in the embedded line pipe as claimed in claim 3, wherein the lantern ring is a nut fixed at the lower end of the screw in a welding mode.

6. The tool for pulling out the steel bars in the embedded line pipe as claimed in claim 5, wherein the axis of the nut is perpendicular to the axis of the screw.

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