Bearing platform reinforcing steel bar supporting tool

Abstract

The utility model relates to the technical field of bearing platform reinforcing steel bar installation, in particular to a bearing platform reinforcing steel bar supporting tool. Which comprises a supporting steel cylinder, a limiting sleeve, a supporting steel bar and a jacking and is characterized in that the supporting steel cylinder is sleeved with the supporting steel bar, one end of the supporting steel bar extends to the outer side of the supporting steel cylinder, and the limiting sleeve is installed on the supporting steel bar extending to the outer side of the supporting steel cylinder in a threaded mode and matched with the supporting steel cylinder in a contact mode; the length of the supporting steel bar extending to the outer side of the supporting steel cylinder is adjusted, and a jacking is installed at the end, on one side of the limiting sleeve, of the supporting steel bar; the bearing platform reinforcing steel bar supporting tool can be repeatedly used, the manual labor amount is effectively reduced, meanwhile, the length of the bearing platform reinforcing steel bar supporting tool can be adjusted, and the problems that the horizontal height deviation of a top-layer reinforcing steel bar net and the horizontal height deviation of the top-layer reinforcing steel bar net cannot be adjusted are effectively solved.

Description

Technical Field

[0001] The utility model relates to the technical field of foundation steel bar installation, in particular to a foundation steel bar supporting tool. Background Art

[0002] The cap is a force-transmitting structure between the pile foundation and the pier body. The load of the bridge superstructure is transmitted to the pier body through the support and the cushion stone, and the pier body is transmitted to the pile foundation through the cap. Therefore, the role of the cap is quite important. The cap is mainly composed of concrete and steel cage. The steel cage is divided into the top steel mesh and the bottom steel mesh. In order to ensure the horizontal height of the top steel mesh, a number of threaded steel bars are usually set under the top steel mesh for support. The specific method is: cut the threaded steel into appropriate lengths, and then weld one end of the threaded steel bar of appropriate length to the bottom surface of the top steel mesh, and weld the other end of the threaded steel bar to the top surface of the bottom steel mesh. In this way, the threaded steel bar is used to realize the vertical support of the top steel mesh on the bottom steel mesh to ensure the overall horizontal height of the top steel mesh.

[0003] After the binding of the foundation reinforcement and the embedded reinforcement of the pier body is completed, since the rebar and the steel mesh are welded, the rebar cannot be taken out during the pouring of concrete and is directly buried in the concrete; although the rebar plus welding method can achieve the support positioning of the top steel mesh, the welded rebar cannot be reused, resulting in a waste of steel raw materials and increased construction costs, and the manual welding method is time-consuming and labor-intensive, with a large amount of manual labor and low installation efficiency. On the other hand, in the process of welding rebar, due to individual differences, manual welding is prone to height errors, resulting in deviations in the horizontal height of the rebar after welding. Since the rebar is welded to the top and bottom steel meshes, the horizontal height of the top steel bar cannot be adjusted later, which directly affects the stability of the foundation structure, so it is necessary to improve it. Summary of the invention

[0004] The utility model aims to solve the problem that the existing threaded steel welding cannot be reused,

[0005] A cap steel bar support tool is proposed to solve the technical problems of large manual labor, easy deviation of the horizontal height of the top steel mesh after welding, and inability to adjust the horizontal height deviation of the top steel mesh.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A foundation steel bar support tool comprises a supporting steel cylinder, a limiting sleeve, supporting steel bars and a top support, and is characterized in that: the supporting steel cylinder is sleeved with supporting steel bars, one end of the supporting steel bars extends to the outside of the supporting steel cylinder, a limiting sleeve is threadedly installed on the supporting steel bars extending to the outside of the supporting steel cylinder, the limiting sleeve is in contact and cooperate with the supporting steel cylinder, so as to adjust the length of the supporting steel bars extending to the outside of the supporting steel cylinder, and a top support is installed on the end of the supporting steel bars on one side of the limiting sleeve.

[0008] The supporting steel cylinder is an oblong structure, and a slot is provided at the center of a port at one end of the supporting steel cylinder, and the slot is inserted in cooperation with the supporting steel bar.

[0009] The supporting steel bar is in the shape of an oblong and is provided with external threads on the circumference of the supporting steel bar.

[0010] The limiting sleeve is in the shape of a circular tube, and the inner wall of the limiting sleeve is provided with an internal thread, which is threadedly connected with the external thread of the supporting steel bar.

[0011] The top support is in a cross shape, and a limit fork is symmetrically arranged on the upper end surface of the top support, and the cross section of the limit fork is in a "concave" shape.

[0012] A rectangular socket is provided at the center of a port at one end of the supporting steel cylinder, and the cross section of the rectangular socket is a square.

[0013] The supporting steel bar is in the shape of a long strip, a part of the supporting steel bar is in the shape of a cylinder, and another part of the supporting steel bar is in the shape of a rectangle. The rectangular supporting steel bar part cooperates with the rectangular socket and the cylindrical supporting steel bar part cooperates with the rectangular socket.

[0014] A top support is movably installed on the end of the supporting steel bar on one side of the limiting sleeve through a detachable structure, and the detachable structure includes a limiting head. A plurality of assembly grooves for installing the limiting head are opened on the circumference of one end of the supporting steel bar. The limiting head is installed in the assembly groove through a reset spring and a limiting ring. One end of the limiting head extends to the outside of the assembly groove. A joint is fixedly installed on the top support corresponding to the supporting steel bar, and a clamping groove is arranged in the joint. The clamping groove and the cylindrical end of the supporting steel bar are movably inserted, and an annular groove is arranged at the position corresponding to the clamping groove and the limiting head.

[0015] Compared with the prior art, the advantages and positive effects of the utility model are:

[0016] In the utility model, the cap steel bar support tool forms a top support for the top steel bar mesh through the supporting steel cylinder, supporting steel bars and top supports; the cap steel bar support tool cooperates with the supporting steel cylinder through a limiting sleeve to realize stepless adjustment of the length of the supporting steel bars extending outside the supporting steel cylinder to meet the installation height requirements of the top steel bar mesh of caps of different specifications. The cap steel bar support tool can be reused to effectively reduce manual labor. At the same time, the cap steel bar support tool can adjust the length to effectively reduce the horizontal height deviation of the top steel bar mesh and the problem that the horizontal height of the top steel bar mesh cannot be adjusted after deviation occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0018] Figure 2 This is a schematic diagram of the front view structure of the utility model;

[0019] Figure 3 It is a schematic diagram of the structure of the top support and the supporting steel bar in the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model in partial working state erected below the top steel mesh;

[0021] Figure 5 This is a schematic diagram of the improved front structure of the utility model;

[0022] Figure 6 for Figure 5 The enlarged structural diagram at A in the middle;

[0023] Figure 7 This is a schematic diagram of the structure of the improved supporting steel bar in the utility model;

[0024] Figure 8 It is a schematic diagram of the improved overall structure of the utility model.

[0025] Legend:

[0026] 1. Support steel cylinder; 2. Limit sleeve; 3. Support steel bar; 4. Top support; 5. Slot; 6. Limit fork; 7. Rectangular socket; 8. Limit head; 9. Assembly groove; 10. Return spring; 11. Limit ring; 12. Ring groove; 13. Positioning groove; 14. Top steel mesh; 15. Joint; 16. Slot. DETAILED DESCRIPTION

[0027] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0029] Embodiment 1:

[0030] See also Figure 1-4 The utility model provides a technical solution: a foundation steel bar support tool, comprising a support steel cylinder 1, a limiting sleeve 2, a support steel bar 3 and a top support 4. The support steel cylinder 1 is an oblong structure, and a slot 5 is opened at the center position of a port at one end of the support steel cylinder 1. The support steel bar 3 is mounted on the slot 5 of the support steel cylinder 1. The slot 5 and the support steel bar 3 are movably inserted together. When in use, the support steel bar 3 can slide upward or downward along the slot 5 of the support steel cylinder 1.

[0031] One end of the supporting steel bar 3 extends to the outside of the supporting steel cylinder 1, and a limiting sleeve 2 is threadedly installed on the supporting steel bar 3 extending to the outside of the supporting steel cylinder 1. The limiting sleeve 2 is a circular tube, and the supporting steel bar 3 is an oblong. An external thread is arranged on the circumference of the supporting steel bar 3, and an internal thread is arranged on the inner wall of the limiting sleeve 2. The internal thread is threadedly connected with the external thread of the supporting steel cylinder 1. The limiting sleeve 2 has the same diameter as the supporting steel cylinder 1. When in use, the length of the supporting steel bar 3 extending outside the supporting steel cylinder 1 can be steplessly adjusted by rotating the limiting sleeve 2.

[0032] A top support 4 is installed on the end of the supporting steel bar 3 on one side of the limiting sleeve 2. The top support 4 is in a cross shape. A limiting fork 6 is symmetrically arranged on the upper end surface of the top support 4. The cross-section of the limiting fork 6 is in a "concave" shape. The purpose of such arrangement is: to use the limiting fork 6 to limit the criss-crossing steel bars in the top steel mesh 14, so as to facilitate the subsequent lifting operation of the top support 4.

[0033] This embodiment takes a bridge pier of a certain project as an example. The pier is a reinforced concrete structure, and the dimensions of the pier are length×width×height=10.2m×6.8m×2.5m.

[0034] The construction method of the foundation steel bar support tool is as follows: first, a plurality of the support tools are arranged in an array below the top steel bar mesh 14, and the support steel bar 3 is extended outward along the support steel cylinder 1 by rotating the limit sleeve 2 clockwise until the top support 4 of the tool is engaged with the cross intersection of the longitudinal and transverse directions of the top steel bar mesh 14, and the support steel cylinder 1 of the tool is in contact with the bottom steel bar mesh, thereby realizing the support of the tool for the top steel bar mesh 14, so that the top steel bar mesh 14 is at the same horizontal height as a whole.

[0035] When the height of the top steel mesh 14 supported by the tool is too high, the limiting sleeve 2 is rotated counterclockwise to allow the supporting steel bars 3 to retract inward along the supporting steel cylinder 1, thereby reaching a suitable height.

[0036] When the tool is set up and the steel mesh is at the same horizontal height as a whole, start pouring the foundation concrete until the poured concrete is buried close to the end face of the supporting steel cylinder 1, stop pouring the concrete, rotate the limit sleeve 2 counterclockwise, the limit sleeve 2 and the supporting steel bar 3 rotate relative to each other, and the supporting steel bar 3 retracts inward along the slot 5 of the supporting steel cylinder 1. At this time, the supporting steel bar 3 drives the top support 4 to move downward. When the top support 4 is separated from the top steel mesh 14, the tool can be pulled out of the concrete as a whole, and then continue pouring concrete until the foundation concrete pouring construction operation is completed.

[0037] The cap steel bar support tool is reusable, effectively reducing manual labor. At the same time, the cap steel bar support tool can be adjusted in length to facilitate the removal of the tool from the concrete, effectively reducing the height deviation of the top steel mesh 14 and the problem that the top steel mesh 14 cannot be adjusted after the height deviation occurs.

[0038] The configuration of the abutment in this embodiment is as follows: 9 rows of supports are arranged in the transverse direction of the bridge, and 3 rows are arranged in the longitudinal direction of the bridge, with a total of 27 support structures. The traditional use of steel bar supports requires doubling the number of supports. The traditional steel bar supports are used as the first solution, and this embodiment is used as the second solution. The specific indicators of the first and second solutions are compared as shown in the following table:

[0039] Table 1 Comparison of indicators of two schemes

[0040] Serial number project Solution 1 Solution 2 1 Support material (kg) 520.594 442.8 2 Limit set fee (ten thousand) 0 0.024 3 Material consumption cost (ten thousand) 2.7 0 4 Total cost (ten thousand) 2.7 0.024 5 Economic evaluation High cost Low cost 6 Recycling Not recyclable Recyclable 7 Security Assessment Large safety reserve and high security Large safety reserve, guaranteed 8 Appearance evaluation Good appearance Good appearance 9 Application Scenario Use of ordinary bearing Use of ordinary bearing

[0041] Embodiment 2:

[0042] See also Figure 5-8 The utility model provides a technical solution: a foundation steel bar support tool, including a support steel cylinder 1, a limiting sleeve 2, a support steel bar 3 and a top support 4. The support steel cylinder 1 is an oblong structure. A rectangular socket 7 is opened at the center of the port at one end of the support steel cylinder 1. The cross-section of the rectangular socket 7 is a square. A positioning groove 13 is provided at the other end of the support steel cylinder 1. The positioning groove 13 is used to cooperate with a single steel bar of the bottom steel mesh to realize the positioning of the support steel cylinder 1.

[0043] The rectangular socket 7 of the supporting steel cylinder 1 is provided with supporting steel bars 3, which are in the shape of long strips, with one part of the supporting steel bars 3 being cylindrical and the other part of the supporting steel bars 3 being rectangular. The rectangular part of the supporting steel bars 3 is inserted into the rectangular socket 7, and the cylindrical part of the supporting steel bars 3 is inserted into the rectangular socket 7. When in use, the supporting steel bars 3 can slide upward or downward along the axial direction of the rectangular socket 7 of the supporting steel cylinder 1, and the rectangular socket 7 limits the rectangular part of the supporting steel bars 3 to prevent the supporting steel bars 3 from rotating in the supporting steel cylinder 1.

[0044] The cylindrical support steel bar 3 is provided with an external thread on its circumference, and one end of the support steel bar 3 extends to the outside of the support steel cylinder 1. A limiting sleeve 2 is threadedly installed on the support steel bar 3 extending to the outside of the support steel cylinder 1, and the limiting sleeve 2 is cylindrical.

[0045] A top support 4 is movably installed on the end of the supporting steel bar 3 on one side of the limiting sleeve 2 through a detachable structure, so that the limiting sleeve 2 is conveniently installed on the cylindrical end of the supporting steel bar 3. The detachable structure includes a limiting head 8. Six assembly grooves 9 for installing the limiting head 8 are evenly opened on the circumference of one end of the cylindrical supporting steel bar 3. The limiting head 8 is movably inserted in the assembly groove 9. A return spring 10 is arranged between one end of the limiting head 8 and the inner bottom surface of the assembly groove 9. A limiting ring 11 is threadedly installed on the end of the assembly groove 9 at the other end of the limiting head 8. The limiting ring 11 is in the shape of a circular ring. The limiting ring 11 forms a limit for the limiting head 8. 8 is in the shape of a long round head, and the end portion of the limit head 8 passes through the limit ring 11 and extends to the outside of the assembly groove 9. A joint 15 is fixedly installed on the lower surface of the top support 4 corresponding to the supporting steel bar 3, and a card groove 16 is arranged on the lower bottom surface of the joint 15. The cross section of the card groove 16 is circular, and the card groove 16 is inserted into the cylindrical end of the supporting steel bar 3. An annular groove 12 is arranged at the position corresponding to the card groove 16 and the limit head 8, and the annular groove 12 is engaged with the limit head 8. When in use, the cylindrical end of the supporting steel bar 3 is inserted into the card groove 16 of the limit head 8 of the joint 15, thereby realizing a detachable and movable connection between the supporting steel bar 3 and the top support 4.

[0046] The construction method of the foundation steel bar support tool is as follows: first, a plurality of the support tools are arranged in an array below the top steel bar mesh 14, and the support steel bar 3 is extended outward along the support steel cylinder 1 by rotating the limit sleeve 2 clockwise until the top support 4 of the tool is engaged with the cross intersection of the longitudinal and transverse directions of the top steel bar mesh 14, and the positioning groove 13 of the support steel cylinder 1 of the tool is engaged with a single steel bar of the bottom steel bar mesh, thereby further improving the stability of the support of the support steel cylinder 1.

[0047] When the height of the top steel mesh 14 supported by the tool is too high, the support steel bars 3 are retracted inward along the support steel tube 1 by rotating the limit sleeve 2 counterclockwise to reach a suitable height, thereby supporting the top steel mesh 14 through the tool so that the top steel mesh 14 is at the same horizontal height as a whole.

[0048] When the tool is set up in place and the steel mesh is at the same horizontal height, the foundation concrete is poured until the poured concrete is buried close to the end face of the supporting steel cylinder 1, and the concrete pouring is stopped. The limiting sleeve 2 is rotated counterclockwise. Since the bottom steel mesh limits the supporting steel cylinder 1, the top steel mesh 14 limits the top support 4, and the supporting steel cylinder 1 forms a radial limit on the supporting steel bar 3, when the limiting sleeve 2 is rotated counterclockwise, the limiting sleeve 2 drives the supporting steel bar 3 to retract inward along the rectangular socket 7 of the supporting steel cylinder 1. The purpose of this setting is: through the cooperation between the supporting steel bar 3 with the supporting steel cylinder 1 at the rectangular end, the supporting

[0049] The support steel bar 3 moves downward more smoothly; at this time, the support steel bar 3 drives the top support 4 to move downward. When the top support 4 is separated from the top steel mesh 14, the tool can be pulled out of the concrete as a whole, and then the concrete pouring can continue until the foundation concrete pouring construction operation is completed.

Claims

1. A cap steel bar support tool, comprising a support steel cylinder (1), a limit sleeve (2), a support steel bar (3) and a jacking (4), characterized in that: A supporting steel bar (3) is sleeved on the supporting steel cylinder (1), one end of the supporting steel bar (3) extends to the outside of the supporting steel cylinder (1), a limiting sleeve (2) is threadedly installed on the supporting steel bar (3) extending to the outside of the supporting steel cylinder (1), the limiting sleeve (2) contacts and cooperates with the supporting steel cylinder (1), thereby adjusting the length of the supporting steel bar (3) extending to the outside of the supporting steel cylinder (1), and a top support (4) is installed on the end of the supporting steel bar (3) on one side of the limiting sleeve (2).

2. A cap steel bar support tool according to claim 1, characterized in that: The supporting steel cylinder (1) is an oblong structure. A slot (5) is provided at the center of one end of the supporting steel cylinder (1). The slot (5) is inserted in cooperation with the supporting steel bar (3).

3. A cap steel bar support tool according to claim 1, characterized in that: The supporting steel bar (3) is in the shape of an oblong, and an external thread is arranged on the circumference of the supporting steel bar (3).

4. A cap steel bar support tool according to claim 1, characterized in that: The limiting sleeve (2) is in the shape of a circular tube, and the inner wall of the limiting sleeve (2) is provided with an internal thread, which is threadedly connected with the external thread of the supporting steel bar (3).

5. The cap steel bar support tool according to claim 1, characterized in that: The top support (4) is in a cross shape, and a limit fork (6) is symmetrically arranged on the upper end surface of the top support (4), and the cross section of the limit fork (6) is in a "concave" shape.

6. A cap steel bar support tool according to claim 1, characterized in that: A rectangular socket (7) is provided at the center of one end of the support steel cylinder (1), and the cross section of the rectangular socket (7) is a square.

7. A cap steel bar support tool according to claim 1, characterized in that: The supporting steel bar (3) is in the shape of an elongated strip, a portion of the supporting steel bar (3) is in the shape of a cylinder, and another portion of the supporting steel bar (3) is in the shape of a rectangle. The rectangular portion of the supporting steel bar (3) is inserted into the rectangular socket (7), and the cylindrical portion of the supporting steel bar (3) is inserted into the rectangular socket (7).

8. The cap steel bar support tool according to claim 1, characterized in that: A top support (4) is movably mounted on the end of the support steel bar (3) on one side of the limit sleeve (2) via a detachable structure, the detachable structure comprising a limit head (8), a plurality of assembly grooves (9) for mounting the limit head (8) are provided on the circumference of one end of the support steel bar (3), the limit head (8) is mounted in the assembly groove (9) via a reset spring (10) and a limit ring (11), one end of the limit head (8) extends to the outside of the assembly groove (9), a joint (15) is fixedly mounted on the top support (4) corresponding to the support steel bar (3), a clamping groove (16) is provided in the joint (15), the clamping groove (16) is movably inserted in cooperation with the end of the cylindrical support steel bar (3), and an annular groove (12) is provided at a position corresponding to the clamping groove (16) and the limit head (8).

Images