Double-layer combination device for positioning embedded bolt group

Abstract

The utility model relates to the technical field of constructional engineering, and discloses a double-layer combined device for positioning an embedded bolt group, which comprises an outer side template and a reinforcement cage arranged in the outer side template, a positioning mechanism is arranged on the top of the reinforcement cage and comprises a first positioning plate, a bolt inner sleeve arranged on the first positioning plate and a second positioning plate arranged on the top of the bolt inner sleeve, and a plurality of first positioning holes and second positioning holes are vertically and oppositely formed in the first positioning plate and the second positioning plate. A first positioning hole and a second positioning hole are formed in the top surface of the second positioning plate, a bolt is arranged in the first positioning hole and the second positioning hole in a penetrating mode, the outer surface of the bolt is sleeved with an upper end nut and a lower end nut in a spaced mode, the upper end nut is fixed to the top surface of the second positioning plate, and the lower end nut is fixed to the bottom surface of the first positioning plate. The axis perpendicularity, the horizontal position and the elevation of the embedded bolt are guaranteed, and effective guarantee is provided for installation of a steel structure stand column and an equipment support in the subsequent tightening process.

Description

Technical Field

[0001] The utility model relates to the technical field of construction engineering, in particular to a double-layer combined device for positioning a pre-embedded bolt group. Background Art

[0002] At present, the pre-embedded construction of foot bolts is a key and difficult point in the construction of sub-projects such as steel column foundations of steel structure workshop buildings, contact network steel column foundations, vehicle maintenance process equipment foundations, and column track foundations in rail transit projects. The quality of pre-embedded foot bolt construction includes the verticality of the foot bolt axis and the precision control of the plane position and elevation in the concrete foundation and other construction indicators. In order to ensure the accuracy of the connection between the pre-embedded bolts and their upper structures, during the construction stage of pre-embedded bolts in the concrete foundation, a positioning device made of a metal plate is usually used to locate the position of the pre-embedded bolts. The general positioning device is made of a single-layer steel plate, and a large-sized single-layer positioning device is prone to deformation during actual use, which reduces the horizontal positioning and vertical accuracy of the pre-embedded bolts, and is difficult to meet the quality control requirements for the embedding of the column foot bolt group in complex steel structures. The thick single-layer plate is very heavy, which is not convenient for template production and site transportation, erection and adjustment. The patent with the publication number CN217679235U is a double-layer positioning device, but its positioning through-hole cone tube process has high precision requirements and is difficult to manufacture. Therefore, the utility model is born. Utility Model Content

[0003] The present application provides a double-layer combined device for positioning a pre-embedded bolt group, so as to solve the problems of the existing pre-embedded bolt device being thick and heavy, inconvenient to manufacture, carry and adjust the position.

[0004] In order to solve the above-mentioned technical problems, the present application provides a double-layer combination device for positioning a group of embedded bolts, comprising: an outer formwork and a steel cage arranged in the outer formwork; a positioning mechanism is arranged on the top of the steel cage, and the positioning mechanism comprises a first positioning plate, a bolt inner sleeve arranged on the first positioning plate, and a second positioning plate arranged on the top of the threaded inner sleeve, a plurality of first positioning holes and second positioning holes are vertically arranged on the first positioning plate and the second positioning plate, bolts are passed through the first positioning holes and the second positioning holes, and upper end nuts and lower end nuts are arranged at intervals on the outer surface of the bolts, the upper end nut is fixed to the top surface of the second positioning plate, and the lower end nut is fixed to the bottom surface of the first positioning plate.

[0005] In some embodiments of the present application, a plurality of fixed steel bars are arranged between the outer formwork and the second positioning plate, one end of the plurality of fixed steel bars is welded and fixed to the top surface of the outer formwork, and the other end of the plurality of fixed steel bars is welded and fixed to the top surface of the second positioning plate.

[0006] In some embodiments of the present application, wooden blocks are provided at the bottom of the first positioning plate.

[0007] In some embodiments of the present application, the apertures of the first positioning hole and the second positioning hole are consistent, the outer diameter of the inner sleeve of the bolt is not less than the aperture of the first positioning hole, and the bottom surface of the inner sleeve of the bolt is welded and fixed to the top surface of the first positioning plate.

[0008] In some embodiments of the present application, the thickness of the first positioning plate and the second positioning plate is 3 cm.

[0009] In some embodiments of the present application, the first positioning plate and the second positioning plate are vertically provided with a plurality of rectangular openings opposite to each other.

[0010] In some embodiments of the present application, a flat washer is provided between the upper nut and the second positioning plate.

[0011] Compared with the prior art, the utility model has the following characteristics and beneficial effects:

[0012] The utility model fixes the first positioning plate, the second positioning plate, the bolt inner sleeve and other components to an overall frame through the upper end nut and the lower end nut, which greatly improves the bending resistance of the positioning device when positioning a large-area and large-size embedded bolt group. It is not easy to deform and the bolt positioning accuracy is guaranteed. The first positioning plate, the second positioning plate, the bolt inner sleeve and other components are made of thin steel plates and steel pipes. The first positioning plate and the second positioning plate are U-shaped frames with light weight, simple structure and convenient production. The utility model is suitable for the installation of various column foot bolts and anchor bolts. The overall production, erection, adjustment and use of the device are simple, targeted, and have a wide range of applications. Popularization and use can produce better results. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0014] Figure 2 This is a schematic diagram of the positioning mechanism structure of an embodiment of the utility model;

[0015] Figure 3 This is a schematic diagram of bolt installation in an embodiment of the utility model;

[0016] Figure 4 This is a schematic diagram of the positioning mechanism structure of an embodiment of the utility model;

[0017] Figure 5 It is a top view schematic diagram of the positioning mechanism of the embodiment of the utility model.

[0018] In the figure, 100, outer formwork; 200, positioning mechanism; 210, first positioning plate; 220, bolt inner sleeve; 230, second positioning plate; 240, first positioning hole; 250, second positioning hole; 260, bolt; 270, upper nut; 280, lower nut; 290, flat washer; 300, fixed steel bar; 400, wooden square; 500, rectangular opening. DETAILED DESCRIPTION

[0019] The following is a further detailed description of the specific implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.

[0020] In the description of the present application, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0021] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise specified, "plurality" means two or more.

[0022] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0023] like Figure 1-5As shown, according to some embodiments of the present application, a double-layer combination device for positioning a pre-embedded bolt group includes: an outer template 100 and a steel cage arranged in the outer template 100; a positioning mechanism 200 is arranged on the top of the steel cage, and the positioning mechanism 200 includes a first positioning plate 210, a bolt inner sleeve 220 arranged on the first positioning plate 210, and a second positioning plate 230 arranged on the top of the threaded inner sleeve, and a plurality of first positioning holes 240 and second positioning holes 250 are vertically arranged on the first positioning plate 210 and the second positioning plate 230. Bolts 260 are inserted into the first positioning holes 240 and the second positioning holes 250, and upper end nuts 270 and lower end nuts 280 are spaced apart on the outer surface of the bolts 260, and the upper end nut 270 is fixed to the top surface of the second positioning plate 230, and the lower end nut 280 is fixed to the bottom surface of the first positioning plate 210.

[0024] According to some embodiments of the present application, a plurality of fixed steel bars 300 are arranged between the outer formwork 100 and the second positioning plate 230, one end of the plurality of fixed steel bars 300 is welded and fixed to the top surface of the outer formwork 100, and the other end of the plurality of fixed steel bars 300 is welded and fixed to the top surface of the second positioning plate 230.

[0025] According to some embodiments of the present application, a wooden block 400 is disposed at the bottom of the first positioning plate 210 .

[0026] According to some embodiments of the present application, the apertures of the first positioning hole 240 and the second positioning hole 250 are consistent, the outer diameter of the bolt inner sleeve 220 is not less than the aperture of the first positioning hole 240 , and the bottom surface of the bolt inner sleeve 220 is welded and fixed to the top surface of the first positioning plate 210 .

[0027] According to some embodiments of the present application, the thickness of the first positioning plate 210 and the second positioning plate 230 is 3 cm.

[0028] According to some embodiments of the present application, a plurality of rectangular openings 500 are vertically disposed on the first positioning plate 210 and the second positioning plate 230 opposite to each other.

[0029] According to some embodiments of the present application, a flat washer 290 is disposed between the upper nut 270 and the second positioning plate 230 .

[0030] According to some embodiments of the present application, the steps of using a double-layer assembly device for locating a pre-embedded bolt group are as follows: Step 1, stacking the first locating plate 210 and the second locating plate 230, and placing and fixing them to the top surface of the column foundation reinforcement cage, and using a wooden square 400 or other hard material to preliminarily fix the position and elevation of the first locating plate 210 and the second locating plate 230;

[0031] Step 2: insert all embedded bolts 260 into the first positioning hole 240 and the second positioning hole 250, and preliminarily fix them with the upper nut 270 and the lower nut 280 respectively;

[0032] Step 3: Use a total station to accurately locate the center position of the assembly device to determine the embedded positions of all embedded bolts 260, use a total station or a level to measure the top surface elevation of the embedded bolts 260, and adjust the positions of the upper nut 270 and the lower nut 280 to adjust the embedded bolts 260 to the designed elevation;

[0033] Step 4: After the double-layer assembly is positioned, short steel bars are used to weld the upper positioning plate, bolts 260, etc. of the double-layer assembly to the steel formwork and column reinforcement cage.

[0034] In summary, the utility model relates to the technical field of construction engineering, and discloses a double-layer combination device for positioning a group of embedded bolts, comprising: an outer formwork and a steel cage arranged in the outer formwork; the top of the steel cage is arranged on a positioning mechanism, and the positioning mechanism comprises a first positioning plate, a bolt inner sleeve arranged on the first positioning plate, and a second positioning plate arranged on the top of the threaded inner sleeve, and the first positioning plate and the second positioning plate are vertically arranged with a plurality of first positioning holes and second positioning holes, and bolts are passed through the first positioning holes and the second positioning holes. The outer surface of the bolt is sleeved with an upper nut and a lower nut at intervals, and the upper nut is fixed to the top surface of the second positioning plate, and the lower nut is fixed to the bottom surface of the first positioning plate. The device greatly improves the overall bending resistance of the double-layer composite plate, ensures the verticality of the axis, the horizontal position and the elevation of the embedded bolts, and provides effective guarantee for the installation of steel structure columns and equipment brackets in the subsequent process.

[0035] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principle of the present invention. These improvements and substitutions should also be regarded as the protection scope of the present invention.

Claims

1. A double-layer assembly device for positioning a pre-embedded bolt group, comprising: An outer template (100) and a steel cage arranged in the outer template (100); characterized in that a positioning mechanism (200) is arranged on the top of the steel cage, and the positioning mechanism (200) includes a first positioning plate (210), a bolt inner sleeve (220) arranged on the first positioning plate (210), and a second positioning plate (230) arranged on the top of the bolt inner sleeve (220), the first positioning plate (210) and the second positioning plate (230) are vertically oppositely provided with a plurality of first positioning holes (240) and second positioning holes (250), the first positioning holes (240) and the second positioning holes (250) are penetrated by bolts (260), and the outer surface of the bolts (260) is sleeved with an upper nut (270) and a lower nut (280) at intervals, the upper nut (270) is fixed to the top surface of the second positioning plate (230), and the lower nut (280) is fixed to the bottom surface of the first positioning plate (210).

2. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: A plurality of fixed steel bars (300) are arranged between the outer formwork (100) and the second positioning plate (230), one end of the plurality of fixed steel bars (300) is welded and fixed to the top surface of the outer formwork (100), and the other end of the plurality of fixed steel bars (300) is welded and fixed to the top surface of the second positioning plate (230).

3. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: A wooden block (400) is provided at the bottom of the first positioning plate (210).

4. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: The first positioning hole (240) and the second positioning hole (250) have the same aperture, the outer diameter of the bolt inner sleeve (220) is not less than the aperture of the first positioning hole (240), and the bottom surface of the bolt inner sleeve (220) is welded and fixed to the top surface of the first positioning plate (210).

5. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: The thickness of the first positioning plate (210) and the second positioning plate (230) is 3 cm.

6. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: The first positioning plate (210) and the second positioning plate (230) are vertically arranged with a plurality of rectangular openings (500) opposite to each other.

7. A double-layer assembly device for positioning a pre-embedded bolt group according to claim 1, characterized in that: A flat washer (290) is provided between the upper nut (270) and the second positioning plate (230).

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