Concrete embedded bolt fixing structure

Abstract

The utility model discloses a concrete embedded bolt fixing structure which comprises a bolt penetrating hole formed in a formwork and a positioning thread sleeve located in the bolt penetrating hole and arranged on a bolt in a sleeved mode, and a chuck clamped outside the bolt penetrating hole is arranged on the positioning thread sleeve. The chuck is provided with a clamping structure used for being combined with a dismounting tool. According to the utility model, the horizontal embedded bolt is fixed on the template, so that the problem that the template and the bolt are difficult to align due to steel bar fixation is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building component installation, in particular to a concrete embedded bolt fixing structure. Background Art

[0002] Independent reinforced concrete elevator shafts and independent stairwells are common in chemical buildings, which are used for vertical transportation of personnel and for facilitating personnel access to various platforms on the steel structure. Since the elevator shafts and stairwells are relatively high and relatively independent, it is difficult to set up wall ties when erecting external scaffolding, especially in coastal areas where wind loads are large and denser wall ties are often required. When horizontal pre-embedded bolts are used as wall ties, the existing method for installing horizontal pre-embedded bolts is basically to install the horizontal pre-embedded bolts after the steel bars are rolled, and the bolts are fixed with steel bars. This method has the following disadvantages: the bolts take a long time to install and fix, the installation accuracy is not high, and it is difficult to align the bolts after the template is opened in advance; the bolts are easily displaced with the steel bars when the concrete is poured. Utility Model Content

[0003] In order to solve the problem of positioning the horizontal embedded bolts relative to the template, the utility model proposes a concrete embedded bolt fixing structure, which adopts the method of fixing the horizontal embedded bolts on the template to avoid the problem of difficulty in aligning the template and the bolts caused by using steel bar fixation.

[0004] The technical solution adopted by the utility model is that the design includes a bolt through hole arranged on the template and a positioning nut sleeve located in the bolt through hole and sleeved on the bolt, the positioning nut sleeve is provided with a chuck that is clamped outside the bolt through hole, and the chuck is provided with a clamping structure for combining with a disassembly tool.

[0005] In certain embodiments, two parallel bolt through holes are provided on the template, and the chuck edges of the positioning screw sleeves of the two bolt through holes are provided with gear teeth, and the gear teeth on the two chuck edges are meshed with each other.

[0006] In some embodiments, a connecting member is further included, wherein the connecting member includes a connecting rod, a gasket is connected to the end of the connecting rod, and a through hole for connecting two adjacent bolts is provided on the gasket.

[0007] In some embodiments, the bolt passes through the hole and is threadably engaged with the positioning nut.

[0008] In some embodiments, the chuck is a polygonal chuck, and the edge of the chuck is the locking structure.

[0009] In some embodiments, the end of the bolt located on the concrete side is provided with a bent section bent downward, and the bending direction of the bent section is perpendicular to the horizontal plane.

[0010] In certain embodiments, the positioning nut is threadably matched with the bolt.

[0011] In some embodiments, the locking structure includes gear teeth disposed on an edge of the chuck.

[0012] In certain embodiments, the other end of the positioning nut opposite to the chuck has a wedge-shaped end surface.

[0013] In certain embodiments, a roller is disposed on the other end of the positioning screw sleeve opposite to the chuck.

[0014] Compared with the prior art, the utility model has the following beneficial effects:

[0015] The utility model adopts the method of fixing the horizontal embedded bolts on the template to avoid the problem of difficulty in aligning the template and the bolts caused by the use of steel bar fixation. The chuck is provided with a locking structure for combining with a disassembly tool, and the disassembly tool is, for example, various wrenches, etc. The disassembly tool is combined with the chuck through the locking structure, and then the chuck is controlled to drive the positioning screw sleeve to rotate relative to the bolt, so that the positioning screw sleeve is removed, and then the template is removed from the bolt, which is conducive to the disassembly of the template. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention is described in detail below in conjunction with specific embodiments and drawings. In order to show details and facilitate understanding of its principles, it is not necessarily drawn to scale, and similar reference numerals may describe similar components in different views. The drawings generally illustrate the embodiments discussed herein by way of example and not limitation. Among them:

[0017] Figure 1 It is a side view schematic diagram of two positioning screw sleeves provided on the template of the first embodiment.

[0018] Figure 2 yes Figure 1 Schematic diagram of the right side.

[0019] Figure 3 It is a schematic diagram of the template of the first embodiment connected with the connecting rod.

[0020] Figure 4 yes Figure 3 Schematic diagram of the AA section.

[0021] Figure 5 It is a front view schematic diagram of a template of Embodiment 2 provided with two positioning screw sleeves.

[0022] Figure 6 It is a schematic diagram of the template of the second embodiment connected with the connecting rod.

[0023] Figure 7 yes Figure 6 Schematic diagram of the BB cross section.

[0024] In the figure, 1, template; 2, bolt through hole; 3, positioning screw sleeve; 31, wedge-shaped end face; 32, roller; 4, chuck; 41, gear teeth; 5, bending section; 6, connecting rod; 7, gasket; 8, nut; 10, bolt. DETAILED DESCRIPTION

[0025] The following are specific embodiments of the present invention, and the technical solution of the present invention is further described in conjunction with the accompanying drawings, but the present invention is not limited to these embodiments, and the following embodiments do not limit the utility model involved in the claims. In addition, all combinations of the features described in the embodiments are not necessarily required for the solution of the utility model.

[0026] The principle and structure of the present utility model are described in detail below with reference to the accompanying drawings and embodiments.

[0027] Embodiment 1

[0028] like Figure 1 , 2 As shown in Figures 3 and 4, a concrete embedded bolt fixing structure comprises a bolt through hole 2 provided on a template 1, a positioning screw sleeve 3 located in the bolt through hole 2 and sleeved on the bolt 10, the positioning screw sleeve 3 and the bolt are threadedly matched, the bolt through hole and the positioning screw sleeve are coaxially slidably matched, and a chuck 4 is fixed to the end of the positioning screw sleeve 3 and is clamped outside the bolt through hole 2. When in use, the positioning screw sleeve 3 is fixed on the bolt by threaded connection, and then the positioning screw sleeve 3 is inserted into the bolt through hole 2, so that the bolt and the template 1 are relatively fixed, and the end of the bolt located on the concrete side is provided with a bending section 5 bent downward, and the bending direction of the bending section is perpendicular to the horizontal plane, so that the bolt is firmly connected to the concrete.

[0029] The chuck is provided with a locking structure for combining with a disassembly tool, such as various wrenches, etc. The disassembly tool is combined with the chuck through the locking structure, and then the chuck is controlled to drive the positioning screw sleeve to rotate relative to the bolt, so that the positioning screw sleeve is removed, and then the template is removed from the bolt, which is conducive to the disassembly of the template. Of course, it is also possible that the bolt passes through the hole and is threadedly matched with the positioning screw sleeve, and the bolt and the positioning screw sleeve are coaxially slidably matched, and the chuck is controlled to drive the positioning screw sleeve to rotate relative to the bolt through the hole, so that the positioning screw sleeve is removed.

[0030] The chuck is a polygonal chuck, and the edge of the chuck is the locking structure. For example, the chuck of this embodiment is a regular hexagonal chuck, so the rotation of the chuck can be controlled by a hexagonal wrench.

[0031] The bolts of this embodiment are two arranged in parallel, and also include a connector for connecting other components (such as scaffolding), the connector includes a connecting rod 6, the end of the connecting rod 6 is connected to a gasket 7, and the gasket 7 is provided with a through hole for connecting two adjacent bolts. When in use, two adjacent bolts pass through the gasket 7 at the same time, and then the gasket 7 is fixedly connected to the bolts with a nut 8.

[0032] The other end of the positioning screw sleeve opposite to the chuck has a wedge-shaped end face 31, which leaks out of the bolt through hole and contacts the concrete inside the template. After the concrete solidifies, the wedge-shaped end face is conducive to the positioning screw sleeve to separate from the concrete.

[0033] Embodiment 2

[0034] like Figure 5 , 6 As shown in , 7, different from the above-mentioned embodiments, the locking structure includes gear teeth 41 arranged on the edge of the chuck, that is, the edge of the chuck has a circle of gears. When the positioning screw sleeve needs to be removed, other powered gears can be used to engage with the gear teeth on the edge of the chuck. The powered gears drive the gear teeth on the edge of the chuck to rotate, thereby causing the positioning screw sleeve to detach from the bolt through hole.

[0035] In this embodiment, two parallel bolt through holes are arranged on the template, and the chuck edges of the positioning screw sleeves of the two bolt through holes are provided with gear teeth, and the gear teeth on the two chuck edges are meshed with each other, so that by controlling the rotation of one of the chucks, the other chuck can be driven to rotate at the same time, thereby realizing the simultaneous disassembly of the two positioning screw sleeves.

[0036] A roller 32 is provided at the other end of the positioning screw sleeve opposite to the chuck. When the positioning screw sleeve rotates relative to the concrete, the roller reduces the friction resistance with the concrete.

[0037] The specific embodiments described herein are merely examples of the spirit of the present invention. Those skilled in the art may make various modifications or additions to the specific embodiments described, or replace them in similar ways, without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

Claims

1. A concrete embedded bolt fixing structure, characterized in that: It includes a bolt through hole arranged on the template and a positioning nut sleeve located in the bolt through hole and sleeved on the bolt, the positioning nut sleeve is provided with a chuck that is clamped outside the bolt through hole, and the chuck is provided with a clamping structure for combining with a disassembly tool.

2. The concrete embedded bolt fixing structure according to claim 1, characterized in that: Two parallel bolt through holes are arranged on the template, and the chuck edges of the positioning screw sleeves of the two bolt through holes are provided with gear teeth, and the gear teeth on the two chuck edges are meshed with each other.

3. The concrete embedded bolt fixing structure according to claim 2, characterized in that: It also includes a connecting piece, which includes a connecting rod. The end of the connecting rod is connected to a gasket, and the gasket is provided with a through hole connecting two adjacent bolts.

4. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The bolt passes through the hole and is threadably matched with the positioning nut sleeve.

5. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The chuck is a polygonal chuck, and the edge of the chuck is the locking structure.

6. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The end of the bolt located on the concrete side is provided with a bending section bent downward, and the bending direction of the bending section is perpendicular to the horizontal plane.

7. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The positioning nut sleeve is matched with the bolt through threads.

8. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The locking structure includes gear teeth arranged on the edge of the chuck.

9. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The other end of the positioning nut opposite to the chuck has a wedge-shaped end surface.

10. The concrete embedded bolt fixing structure according to claim 1, characterized in that: The other end of the positioning screw sleeve opposite to the chuck is provided with a roller.

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