CN215859154U

CN215859154U - Cast-in-place reserved joint bar positioning device with accurate positioning

Info

Publication number: CN215859154U
Application number: CN202121516838.8U
Authority: CN
Inventors: 祝战奎; 胡建军; 赵宪军; 赵加林; 王海龙
Original assignee: Tianjin Fengqiao Zhugong Housing Industry Co ltd
Current assignee: Tianjin Fengqiao Zhugong Housing Industry Co ltd
Priority date: 2021-07-03
Filing date: 2021-07-03
Publication date: 2022-02-18
Anticipated expiration: 2031-07-03

Abstract

The utility model discloses a cast-in-place reserved joint bar positioning device with accurate positioning, which belongs to the technical field of cast-in-place reserved joint bar positioning devices.

Description

Cast-in-place reserved joint bar positioning device with accurate positioning

Technical Field

The utility model relates to the field of concrete building construction, in particular to a cast-in-place reserved joint bar positioning device with accurate positioning.

Background

At present, when an assembly type concrete building is constructed, a reserved joint bar needs to be arranged at the connecting part of a cast-in-place structure and a precast concrete member, so that the construction quality of the connecting part is ensured.

The traditional reserved joint bar positioning comprises a sleeve and joint bars, wherein a plurality of insertion holes matched with the sleeve for use are vertically formed in the bottom of a precast concrete member, the depth of each insertion hole is the same as the height of the sleeve, and the outer wall of the sleeve is fixedly connected with the inner wall of each insertion hole; the dowel bars are vertically inserted into the cast-in-place structure, the length of the dowel bars is larger than the thickness of the cast-in-place structure, the dowel bars are partially positioned in the cast-in-place structure, and the dowel bars are matched with the sleeves for use. During construction, part of the dowel bars exposed out of the cast-in-place structure are inserted into the sleeve, the bottom surface of the precast concrete member is abutted against the top surface of the cast-in-place structure, and construction is finished.

Aiming at the related technology, the problem that the dowel bars are easy to deform and deflect when concrete is poured is solved, so that the dowel bars cannot correspond to the sleeve, and the inventor thinks that the reserved dowel bars are not accurately positioned.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defect of inaccurate positioning of the reserved joint bars, the utility model provides a cast-in-situ reserved joint bar positioning device with accurate positioning.

The utility model provides a positioning device for a cast-in-place reserved joint bar with accurate positioning, which adopts the following technical scheme:

the utility model provides a location accurate cast-in-place reserves joint bar positioner, includes the locating plate, locating plate and ground relatively fixed run through on the locating plate and set up a plurality of locating holes that are used for the location joint bar, and the locating hole uses with the joint bar cooperation.

By adopting the technical scheme, before concrete pouring, the positioning plate is fixed relative to the ground, the dowel bars are inserted into the positioning holes, the positioning holes in the positioning plate are used for positioning the dowel bars, certain impact force can be applied to the dowel bars during the concrete pouring, and the positioning holes are arranged to ensure that the position of the dowel bars in the vertical direction is kept stable and is not deflected under the influence of the impact force of the concrete; the locating plate can be repeatedly used for many times, and the production cost is reduced.

Preferably, the positioning plate is provided with a pouring hole in a penetrating manner.

By adopting the technical scheme, after the dowel bars are inserted into the positioning holes and the position of the dowel bars is adjusted, pouring concrete from the pouring holes to the construction surface; the arrangement of the pouring holes enables the positioning device to improve the positioning quality of the reserved joint bars and meet the requirement of concrete pouring; and the dowel bar is positioned firstly, and then concrete is poured, so that the position of the dowel bar cannot be changed in the concrete solidification process, and the positioning quality of the dowel bar is higher.

Preferably, the bottom surface of the positioning plate is abutted with a steel framework, a cast-in-place template is arranged below the steel framework, the cast-in-place template is fixed to the ground, adjusting holes are formed in the positioning plate and the steel framework, a limiting bolt is fixed to the cast-in-place template, the bottom of the limiting bolt is in threaded connection with the cast-in-place template, a nut is in threaded connection with the limiting bolt, and the top of the nut is abutted with the steel framework.

By adopting the technical scheme, the nut is connected with the limiting bolt in a threaded manner, and then the steel framework and the positioning plate sequentially penetrate through the limiting bolt until the bottom surface of the steel framework is abutted against the nut; the steel framework is used for supporting the positioning plate, and the arrangement of the limiting bolt and the nut enables an operator to automatically adjust the distance between the positioning plate and the cast-in-place template, so that the bottom surface of the positioning plate is prevented from contacting the surface of cast-in-place concrete due to the fact that the distance between the positioning plate and the cast-in-place template is too small, and the surface of the cast-in-place concrete is prevented from being damaged; or the positioning plate and the cast-in-place template are prevented from being splashed at four places when concrete is poured due to overlarge distance; and the limiting bolt plays a role in supporting the steel framework and realizes the fixation of the steel framework and the positioning plate.

Preferably, the steel framework is fixed with a mounting hanging ring.

Through adopting above-mentioned technical scheme, the setting up of installation rings is convenient to carry positioner to the position of needs, makes the transport more will relax.

Preferably, a limiting cylinder is fixed on the positioning plate and communicated with the positioning hole.

By adopting the technical scheme, the limiting cylinder is communicated with the positioning hole, and the dowel bar is fixed in the positioning hole and the limiting cylinder; because the locating plate is thinner, and the locating hole degree of depth is lighter, has certain impact force to the dowel steel during concrete placement to make the part that the dowel steel appears watering the concrete produce and buckle, and the dowel steel is fixed in spacing section of thick bamboo, and spacing section of thick bamboo has a take the altitude, and spacing section of thick bamboo is injectd the position secondary of dowel steel in vertical direction, makes the part that the dowel steel appears watering the concrete not receive the concrete impact and buckle, has guaranteed the location accuracy.

Preferably, a limiting assembly is arranged in the limiting cylinder, the limiting assembly comprises four groups of limiting rods, the four groups of limiting rods are arranged in a pairwise symmetry manner, each group of limiting rods comprises two limiting rods, a connecting rod is arranged between the two groups of limiting rods positioned on one side of the semi-circumference of the limiting cylinder, and two ends of the connecting rod are respectively connected with the two groups of limiting rods in a rotating manner; one end of one limiting rod of each group of limiting rods is hinged with the inner wall of the limiting cylinder, and one end of the other limiting rod is hinged with the inner wall of the limiting cylinder in a sliding mode in the vertical direction.

By adopting the technical scheme, the limiting rod which is in sliding hinge connection with the limiting cylinder slides on the mounting frame, and the included angle between the limiting rod and the inner wall of the limiting cylinder is changed, so that the distance between one end of the limiting rod, which is close to the dowel, and the limiting cylinder is changed; the distance between the two groups of limiting rods can be adjusted, so that the inserting bars with different diameters can be fixed in a matched mode.

Preferably, the limiting assembly further comprises at least two limiting pieces which are horizontally arranged, the limiting pieces are located between the two limiting rods which are symmetrical at the same side, and two ends of each limiting piece are fixedly connected with the two limiting rods which are symmetrical at the same side respectively.

Through adopting above-mentioned technical scheme, the area of contact of spacing subassembly and dowel has been increased in setting up of spacing piece, makes the dowel fixed more reliable.

Preferably, the limiting assembly further comprises four limiting springs, each limiting spring is horizontally arranged between two limiting rods which are symmetrical on two sides of the limiting cylinder, and two ends of each limiting spring are fixed with the two limiting rods which are symmetrical on two sides respectively.

By adopting the technical scheme, before use, the two limiting pieces are close to each other because the limiting spring is in a natural state, and when the limiting spring is used, the dowel bars enter the limiting barrel and push the limiting pieces to be away from each other, so that the limiting spring extends; in the positioning process of the inserted bar, the limiting spring keeps a stretching state, so the spring drives the limiting sheet to apply extrusion force to the inserted bar, and the inserted bar cannot shake.

In conclusion, the utility model has the following beneficial effects:

the positioning plate is matched with the steel framework, so that the positioning quality of the dowel bar is guaranteed, and the requirement of concrete pouring can be met; the positioning plate and the steel framework can be repeatedly used, so that the production cost is reduced; the arrangement of the limiting assembly enables the reserved dowel positioning device to adapt to dowel bars with different diameters.

Drawings

FIG. 1 is a schematic cross-sectional view of an assembly of the present invention;

FIG. 2 is a top view of the present invention;

FIG. 3 is a side view intended to show the mounting eye;

FIG. 4 is a schematic sectional view showing the assembly of embodiment 2;

FIG. 5 is a schematic structural view of a hidden dowel and a steel skeleton in example 3;

fig. 6 is a schematic view aimed at showing the structure of the spacing assembly.

Description of reference numerals:

1. positioning a plate; 11. positioning holes; 12. an adjustment hole; 13. pouring holes; 2. a steel framework; 21. installing a hanging ring; 3. casting a template in situ; 31. a limit bolt; 32. a nut; 4. inserting ribs; 5. a limiting cylinder; 6. a limiting component; 61. a limiting rod; 611. a connecting rod; 62. a limiting sheet; 63. and a limiting spring.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

A cast-in-place reserved joint bar positioning device with accurate positioning is disclosed, as shown in figures 1 and 2, cast-in-place templates 3 are fixed on two sides of a construction surface, hollow steel frameworks 2 are arranged above the cast-in-place templates 3, and the steel frameworks 2 and the cast-in-place templates 3 are relatively fixed; the top surface of the steel framework 2 is fixed with a positioning plate 1, and the positioning plate 1 is provided with a positioning hole 11 for positioning the dowel bar 4. During construction, the steel framework 2 is used for supporting the positioning plate 1, and the positioning holes 11 are used for positioning the dowel bars 4.

As shown in fig. 1 and 2, a limit bolt 31 is connected to the top surface of the cast-in-place formwork 3 through a thread, and the limit bolt 31 is vertically arranged; all run through on steel skeleton 2 and locating plate 1 and seted up adjusting hole 12, adjusting hole 12 is located the position that corresponds with stop bolt 31, and threaded connection has nut 32 on stop bolt 31, and nut 32 top surface and the butt of steel skeleton 2 bottom surface. During installation, the limiting bolt 31 sequentially penetrates through the steel framework 2 and the adjusting hole 12 in the positioning plate 1, and the position of the nut 32 is screwed to adjust the distance between the steel framework 2 and the cast-in-situ template 3.

As shown in fig. 1 and 2, the length of the steel framework 2 is greater than the distance between the cast-in-place templates 3, and the size of the positioning plate 1 is the same as that of the steel framework 2; the positioning holes 11 penetrate through the positioning plate 1, a plurality of positioning holes 11 are vertically formed, the positioning holes 11 are symmetrically formed in two ends of the positioning plate 1 in the length direction, and the positioning holes 11 are matched with the joint bars 4; a pouring hole 13 is formed in the positioning plate 1 in a penetrating mode, and the pouring hole 13 is located in the center of the positioning plate 1.

As shown in fig. 3, two installation hanging rings 21 are fixed on the side walls of the two ends of the steel framework 2 in the length direction, the two installation hanging rings 21 are vertically arranged, and the installation hanging rings 21 are symmetrically arranged at the two ends of the steel framework 2 in the length direction.

The application process of this embodiment is as follows:

before concrete pouring, the limiting bolts 31 are adjusted to the designed elevation, then the steel framework 2 and the positioning plate 1 are sequentially installed, the dowel bars 4 are inserted into the positioning holes 11, the positions of the dowel bars 4 are adjusted to the design requirements, the concrete is poured onto the construction surface from the pouring holes 13, the positioning plate 1 and the steel framework 2 are sequentially detached after the concrete is initially set, and the concrete is moved to the next pouring point for repeated use.

Example 2: the difference from the embodiment 1 is that, as shown in fig. 4, a limiting cylinder 5 is fixed at the bottom of the positioning plate 1, the limiting cylinder 5 is vertically arranged, the limiting cylinder 5 is communicated with the positioning hole 11, and the diameter of the limiting cylinder 5 is the same as that of the positioning hole 11. During the use, the dowel bar 4 wears to locate in locating hole 11 and spacing section of thick bamboo 5, and spacing section of thick bamboo 5 plays the secondary limiting action to the position of dowel bar 4.

Example 3: the difference from embodiment 2 is that, as shown in fig. 5 and 6, the diameter of the positioning hole 11 is larger than the diameter of the dowel bar 4, a limiting assembly 6 is arranged in the limiting cylinder 5, the limiting assembly 6 includes four sets of limiting rods 61 and four limiting pieces 62, the four sets of limiting rods 61 are arranged in pairwise symmetry, wherein two sets of limiting rods 61 are arranged on one side of the half circumference of the limiting cylinder 5, a connecting rod 611 is arranged between the two sets of limiting rods 61 on the same side, the connecting rod 611 is in an arc rod-shaped structure, the connecting rod 611 is horizontally arranged, and two ends of the connecting rod 611 are respectively rotatably connected with the two sets of limiting rods 61; each set of the two limiting rods 61 comprises two limiting rods 61, and the two limiting rods 61 are rotatably connected through a connecting rod 611 at the middle point of the side wall in the length direction.

As shown in fig. 6, one end of one limiting rod 61 of each set of limiting rods 61 is hinged to the inner wall of the limiting cylinder 5, one end of the other limiting rod 61 is hinged to the inside of the limiting cylinder 5, and the hinged shaft is connected with the limiting cylinder 5 in a sliding manner in the vertical direction; spacing piece 62 is arc sheet structure, and spacing piece 62 level sets up, and spacing piece 62 is located between two gag lever posts 61 of homonymy symmetry, and the both ends of spacing piece 62 are respectively with two gag lever posts 61 fixed connection of homonymy symmetry.

As shown in fig. 6, four limiting springs 63 are horizontally arranged between two bilaterally symmetrical limiting rods 61 of the limiting cylinder 5, and two ends of each limiting spring 63 are fixedly connected with the two bilaterally symmetrical limiting rods 61.

When the inserting rib limiting device is used, the inserting rib 4 enters the limiting barrel 5 through the positioning hole 11, the inserting rib 4 pushes the limiting piece 62 to move, one end, connected with the limiting piece 62, of the limiting rod 61 is gradually close to one end, connected with the limiting barrel 5, of the limiting rod 61, the limiting pieces 62 opposite in the horizontal direction are mutually far away until the inserting rib 4 extends out of the limiting barrel 5, at the moment, the limiting spring 63 is in an extending state, and the limiting pieces 62 apply extrusion force to the inserting rib 4 to limit the inserting rib 4; and (3) after the concrete is initially set, removing the positioning plate 1 of the dowel bar 4, and restoring the deformation of the limiting spring 63.

The embodiments of the present invention are preferred embodiments of the present invention, and the scope of the present invention is not limited by these embodiments, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered by the protection scope of the utility model.

Claims

1. The utility model provides a fix a position accurate cast-in-place and reserve joint bar positioner which characterized in that: the positioning device comprises a positioning plate (1), wherein the positioning plate (1) is fixed relative to the ground, a plurality of positioning holes (11) for positioning the dowel bars (4) penetrate through the positioning plate (1), and the positioning holes (11) are matched with the dowel bars (4) for use; a pouring hole (13) is formed in the positioning plate (1) in a penetrating mode; positioning plate (1) bottom surface butt has steel skeleton (2), and steel skeleton (2) below is provided with cast-in-place template (3), and cast-in-place template (3) are fixed with ground, all seted up adjusting hole (12) on positioning plate (1) and steel skeleton (2), are fixed with spacing bolt (31) on cast-in-place template (3), and threaded connection has nut (32) on spacing bolt (31) bottom and cast-in-place template (3), and threaded connection has nut (32) on spacing bolt (31), nut (32) top and steel skeleton (2) butt.

2. The cast-in-place reserved joint bar positioning device with accurate positioning according to claim 1, characterized in that: and a mounting hanging ring (21) is fixed on the steel framework (2).

3. The cast-in-place reserved joint bar positioning device with accurate positioning according to claim 1, characterized in that: a limiting cylinder (5) is fixed on the positioning plate (1), and the limiting cylinder (5) is communicated with the positioning hole (11).

4. The cast-in-place reserved joint bar positioning device with accurate positioning according to claim 3, characterized in that: a limiting assembly (6) is arranged in the limiting cylinder (5), the limiting assembly (6) comprises four groups of limiting rods (61), the four groups of limiting rods (61) are arranged in a pairwise symmetrical mode, each group of limiting rods (61) comprises two limiting rods (61), a connecting rod (611) is arranged between the two groups of limiting rods (61) located on one side of the semi-circumference of the limiting cylinder (5), and two ends of the connecting rod (611) are respectively connected with the two groups of limiting rods (61) in a rotating mode; one end of one limiting rod (61) of each group of limiting rods (61) is hinged with the inner wall of the limiting barrel (5), and one end of the other limiting rod (61) is hinged with the inner wall of the limiting barrel (5) in a sliding mode in the vertical direction.

5. The cast-in-place reserved joint bar positioning device with accurate positioning according to claim 4, characterized in that: the limiting assembly (6) further comprises at least two limiting pieces (62) which are horizontally arranged, the limiting pieces (62) are located between the two limiting rods (61) which are symmetrical at the same side, and two ends of each limiting piece (62) are fixedly connected with the two limiting rods (61) which are symmetrical at the same side respectively.

6. The cast-in-place reserved joint bar positioning device with accurate positioning according to claim 5, characterized in that: the limiting assembly (6) further comprises four limiting springs (63), each limiting spring (63) is horizontally arranged between the two limiting rods (61) which are bilaterally symmetrical to each other on the limiting barrel (5), and two ends of each limiting spring (63) are fixed with the two limiting rods (61) which are bilaterally symmetrical to each other.