CN215253506U

CN215253506U - Embedded bolt fixing device

Info

Publication number: CN215253506U
Application number: CN202121620880.4U
Authority: CN
Inventors: 王海
Original assignee: China 22MCC Group Corp Ltd
Current assignee: China 22MCC Group Corp Ltd
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-21
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to a pre-buried bolt fixing device, which comprises a device frame, wherein the device frame is a rectangular frame formed by welding steel bars, and the surfaces of the steel bars are provided with scales; the four devices are arranged in a groined shape to clamp an embedded bolt; the device is suitable for fixing embedded bolts with various diameters, the applicability is strong according to the corresponding adjustment of the distance and the number of the bolts in an embedded bolt group, and the requirement of the whole project can be met by a small amount of fixing devices; the device frame is provided with scales so that an operator can easily and accurately adjust the distance between the embedded bolts; the installation is extremely simple, convenient and quick; this device can adopt the stainless steel preparation, prevents because scales on the pollution devices chi such as concrete or maintenance water.

Description

Embedded bolt fixing device

Technical Field

The utility model relates to a buried bolt installation field in the concrete specifically is a buried bolt fixing device in advance.

Background

In the construction of industrial factory building structures, foundation bolts serve as steel frames and concrete foundation connecting pieces and bear stress transfer carriers, and the pre-embedding precision of the foundation bolts becomes a key link influencing the installation quality of steel structures. How to ensure that the embedded bolts are fixed at one time and the verticality and the distance are within the standard requirements in the concrete vibrating process is always a difficult point in construction.

The traditional fixing method of the embedded bolts is that a steel plate is punched according to the design intervals of a plurality of embedded bolts on a base, and then the steel plate is sleeved on the group of embedded bolts. And each embedded bolt with the relative position limited by the steel plate is welded and fixed with the main steel bar of the column through the auxiliary steel bar.

In the fixing method of the embedded bolt in the prior art, the bolt displacement caused by welding stress and operation errors of construction operators in the welding process of the reinforcing steel bar is assisted, the perpendicularity, the horizontal position and the distance of the embedded bolt are difficult to adjust after the bolt is fixed, and the situation that a steel plate cannot be taken out frequently occurs. Or even though the steel plate is removed, due to the influence of welding stress, the verticality and the distance of the bolts can be changed at the moment when the steel plate is moved away, so that the fixing precision of the embedded bolts is poor.

And if the bolt is required to be adjusted due to unqualified installation in construction, the position of the bolt can be adjusted again only by cutting the welding rib. The situation of multiple adjustment of the embedded bolts often occurs on the construction site. Finally, because the steel plate for limiting the relative spacing of the embedded bolts is taken down before vibration, the auxiliary connecting rib welding spots are easy to break in the vibration process, and the spacing and the verticality of the embedded bolts are changed again. If the deviation between the installation of the embedded bolt and the requirement of a drawing is too large after the embedded bolt is installed and poured, the problem that the follow-up steel structural member is difficult to install can be caused, and the repair can not be carried out.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned problem, provide a reduce pre-buried bolt fixing device of welding stress power transmission.

The utility model provides a problem, the technical scheme who adopts is:

a pre-buried bolt fixing device comprises a device frame, wherein the device frame is a rectangular frame formed by welding steel bars, and scales are arranged on the surfaces of the steel bars; the four devices are arranged in a groined shape to clamp an embedded bolt; the cross position of the device frame is provided with a buckle which locks the cross point of the device frame.

Compared with the prior art, the invention adopting the technical scheme has the beneficial effects that:

the utility model has convenient fixing and dismantling operation, simple structure, easy manufacture and cost saving; the utility model is adjustable for fixing the pre-embedded bolt; the concrete can be dismantled after the concrete is finally set after pouring, the situations of verticality, overlarge interval and diagonal interval deviation after the conventional fixed embedded bolt are avoided, the stress deformation problem of the embedded bolt is effectively solved, and the follow-up reworking is reduced. This device does not receive the restriction of buried bolt size, interval, and number in advance, and the needs of whole engineering can be satisfied to the number set of device, need not carry out extra preparation or purchase again. All be carved with the scale on the billet about this device, operating personnel can be easily and accurate adjust the embedded bolt interval, and the installation is extremely simple and convenient swift. This device can adopt the stainless steel preparation, prevents because scales on the pollution devices chi such as concrete or maintenance water.

Preferably, the present invention further provides:

the buckle comprises a screw rod, and a pair of nuts are arranged on the upper portion and the lower portion of the screw rod. The cross point of the fixing device frame is clamped by two nuts.

Each nut is embedded in the center of one cross-shaped handle. The cross handle can further clamp and fix the steel bar of the device frame.

The outer sides of upper and lower 8 cross points of the four device frames are respectively provided with a buckle, and an upper cross handle and a lower cross handle of the screw rod are simultaneously pressed on a transversely arranged device frame and a longitudinally arranged device frame. The structure is used for fixing the cross points of each steel bar one by one, and is flexible and adjustable, and the fixing structure is stable and reliable.

Drawings

FIG. 1 is a schematic view of the structure of the device frame of the present invention;

FIG. 2 is a schematic view of a structure of an embodiment of the buckle of the present invention;

FIG. 3 is a top view of the second structure of the buckle according to the embodiment of the present invention with a cross-shaped handle;

FIG. 4 is a schematic view of the fixing and pre-buried bolts of the device frame of the present invention;

FIG. 5 is an enlarged view of the assembly cross point of the device frame of the present invention;

FIG. 6 is a diagram of an example of the construction of the present invention in which a set of four embedded bolts is fixed;

FIG. 7 is a schematic view of the utility model for assisting in fixing the embedded bolt for construction and pouring;

fig. 8 is a schematic view of the intersection point of the snap-fit steel bars of the second embodiment;

FIG. 9 is a cross-point diagram of a snap-on variant embodiment fixture mount.

In the figure: the device comprises a device frame 1, scales 1-1, a buckle 2, a screw rod 2-1, a nut 2-2, a cross handle 2-3, an embedded bolt 3 and bottom concrete 4.

Detailed Description

The invention will be further described with reference to the following examples, which are intended only for better understanding of the invention and therefore do not limit the scope of the invention.

Referring to fig. 1, fig. 2 and fig. 4, the utility model provides a pre-buried bolt fixing device is with the fretwork support body replaces the fixed pre-buried bolt of steel sheet. The frame body comprises a device frame 1, and the device frame 1 is a rectangular frame formed by welding steel bars. The steel bars are steel bars and have certain width, so that 1-1 scale can be conveniently marked on the surface of the steel bars. The four device frames 1 are arranged in a # -shape to clamp an embedded bolt 3, buckles 2 are installed at the cross positions of the device frames 1, and the buckles 2 are used for locking the cross points of the device frames.

Generally, a group of embedded bolts is arranged in a horizontal and vertical grid mode, and all embedded bolts 3 need to be connected into a stress whole by the bolt fixing device. Therefore, the size of the device frame 1 in the utility model is suitable for the horizontal embedded bolts 3 which are arranged or arranged in the same row. As shown in fig. 4, each of the "well" shapes is a locking point, and a plurality of locking points are interconnected to form an integral stress structure.

The utility model relates to a structure that is used for each device frame 1 of lock solid is buckle 2, and the buckle includes a screw rod 2-1, and a pair of nut 2-2 is installed from top to bottom to screw rod 2-1.

Embodiment one of the buckle: referring to fig. 2, a nut is respectively arranged at the upper end and the lower end of the bolt, and the two nuts 2-2 are matched and screwed oppositely so as to fasten the intersection point of the device frame. The nut can be arranged to be large enough to press the steel bar of the assembly frame.

For the improvement of the structure of the buckle 2, as shown in fig. 3, the second embodiment of the buckle: each nut 2-2 is embedded in the center of a cross handle 2-3. The cross handle 2-3 may increase the range of gripping structures of the nut 2-2.

Referring to fig. 3, 5 and 8, the structure of snap embodiment 2 employs a shorter screw 2-1. The crossing point of each steel bar is provided with a buckle 2. The upper and the lower cross handles 2-3 clamp and fix the cross points of the horizontal and the vertical steel bars. Referring to fig. 4, in the groined structure of each fixed embedded bolt 3, the intersection positions of four device frames 1 are 8 steel bar intersections, the outer sides of the intersections are respectively provided with a buckle 2, and an upper cross handle 2 and a lower cross handle 2-3 of a screw rod 2-1 are simultaneously pressed on a transversely arranged device frame and a longitudinally arranged device frame.

Referring to fig. 4 to 7, the technical solution of the present invention will be described in detail with reference to the specific installation embodiment.

The device frame is made of steel bars with the thickness of 3mm and the width of 2 cm. The length of the manufactured rectangular frame is 0.6m, and the width of the rectangular frame is 0.2 m. The scales are designed on the surface of the 0.6m steel bar, so that the distance between every two embedded bolts can be observed and determined conveniently.

The buckle adopts the structure of screw rod, upper and lower installation belt cross handle's nut.

Referring to fig. 5 and 6, a four-embedded-bolt fixing structure is taken as an example. For convenience of description, the respective apparatus frames and the snaps put into use are numbered. The present description is described only in terms of the depicted positional relationship of fig. 6.

Firstly, a horizontal device is erected on the lower sides of two embedded bolts on the upper side; and (4) leaning the device frame against the upper side of the embedded bolt at the lower side.

Secondly, inserting the longitudinal device frame II into the transverse device frame II and the transverse device frame III and leaning against the right sides of the two bolts on the left side; inserting the longitudinal device frame into the transverse device frame and leaning against the left sides of the two embedded bolts at the right side.

Thirdly, sleeving the transverse device frame at the outer ends of the longitudinal device frame and tightly attaching the transverse device frame to the upper sides of the two embedded bolts at the upper sides; the transverse rack is sleeved at the outer ends of the longitudinal racks and is tightly attached to the lower sides of the two embedded bolts at the lower sides.

Fourthly, sleeving the longitudinal device frame on the outer ends of the transverse device frame, the transverse device frame and tightly attaching the outer ends of the transverse device frame, the transverse device frame and the transverse device frame to the left sides of the two embedded bolts on the left sides; the longitudinal device frame is sleeved on the outer ends of the transverse device frame, the transverse device frame and tightly attached to the right sides of the two embedded bolts on the right sides.

Fifthly, a buckle I is arranged at an included angle between the transverse I device frame and the longitudinal I device frame, two pressure rods of the cross-shaped handle are pressed on the surfaces of the transverse I steel bars and the longitudinal I steel bars respectively, an upper nut and a lower nut of the screw are matched, and the handle extrudes the device frame towards the middle. In the same way, buckles are arranged at the included angles of the horizontal device frame and the vertical device frame, buckles are arranged at the included angles of the vertical device frame and the horizontal device frame, and buckles are arranged at the included angles of the vertical device frame and the horizontal device frame. The included angles beside other embedded bolts are also arranged.

The fixing device is of a hollow structure and has no obstruction to the mounting of the vibrating rod. After concrete pouring, the area A of the fixing device in the range is the area between the embedded bolts, and when vibration is needed, the vibrating rod can directly vibrate under the area A and the area B, so that the fixing device of the embedded bolts does not need to be dismantled before vibration. The utility model discloses can remove after the concrete setting, the stress that produces when the welding of embedded bolt bottom is fixed is born by bottom concrete 4, consequently, the back is relieved to the device frame, and embedded bolt can not deviate from a position because of stress release.

In actual operation, also not limited to above-mentioned installation, the installation order of each horizontal and vertical device frame, crossing overlapping mode can set up wantonly, as long as can all belong to with the pre-buried bolt 3 of groined type structure centre gripping the design concept scope of the utility model.

For the above-mentioned deformation of the fastening embodiment 2, the cross-shaped handle can also be used to fasten the intersection of the steel bars by a textile method. Specifically, as shown in fig. 9, one end of the cross handle 2-3 is pressed onto the steel bar whose intersection is located at the upper side, and the other end of the cross handle 2-3 is inserted under the steel bar whose intersection is located at the lower side. The upper layer steel bar and the lower layer steel bar can be pressed tightly by the cross handle 2-3. In the modified embodiment, the screw rods 2-1 are long screw rods, the height of the long screw rods is more than or equal to the height of the device frames, and four outer included angles of four device frames arranged in a # -shape are respectively provided with one screw rod 2-1; a cross handle 2-3 of a nut 2-2 at the upper part of the screw rod 2-1 locks the intersection point of the steel bar at the upper side of the device frame; a cross handle 2-3 of a nut at the lower part of the screw rod 2-1 locks the intersection point of steel bars at the lower side of the device frame 1. The cross points of the upper steel bar and the lower steel bar of the device frame are interconnected, and the assembly and fixation of the fixing device are also realized.

The utility model discloses can effectively avoid the straightness that hangs down that appears behind the fixed pre-buried bolt of conventionality very much, interval and the too big condition of diagonal angle interval deviation, because the device has set up the scale on the frame, so the operation is got up very clearly and clearly.

This device demolishs the convenience, only needs to loosen each buckle and can accomplish the dismantlement, only needs about one minute through experimental dismantlement time, and this fixing device only comprises two kinds of parts of device frame and buckle, and the preparation is easy relatively, also conveniently accomodates or transports to next engineering and use, but repetitious utilization. Use the utility model discloses more high-efficient and rapid fix pre-buried bolt, convenient and fast practices thrift the cost, reduces follow-up rework for the construction progress.

The above description is only a preferred and practical embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent variations made by using the contents of the specification and the drawings are included in the scope of the present invention.

Claims

1. The utility model provides a buried bolt fixing device in advance which characterized in that: the device comprises a device frame (1), wherein the device frame (1) is a rectangular frame formed by welding steel bars, and scales (1-1) are arranged on the surfaces of the steel bars; the four device frames (1) are arranged in a groined shape to clamp an embedded bolt (3); the cross position of the device frame (1) is provided with a buckle (2), and the buckle (2) locks the cross point of the device frame (1).

2. The embedded bolt fixing device according to claim 1, characterized in that: the buckle (2) comprises a screw rod (2-1), and a pair of nuts (2-2) are arranged on the upper and lower parts of the screw rod (2-1).

3. The embedded bolt fixing device according to claim 1, characterized in that: each nut (2-2) is embedded in the center of one cross handle (2-3).

4. The embedded bolt fixing device according to claim 3, characterized in that: the outer sides of upper and lower 8 cross points of the four device frames (1) at the intersecting positions in a shape like a Chinese character 'jing' are respectively provided with a buckle (2), and an upper cross handle (2-3) and a lower cross handle (2-1) of a screw rod (2-1) are simultaneously pressed into a transversely arranged device frame (1) and a longitudinally arranged device frame (1).

5. The embedded bolt fixing device according to claim 3, characterized in that: the length of the screw rod (2-1) is more than or equal to the height of the device frame (1), and four outer included angles of the four device frames (1) which are arranged in a crisscross shape are respectively provided with one screw rod (2-1); a nut (2-2) at the upper part of the screw rod (2-1) locks the intersection of steel bars at the upper side of the device frame (1); the lower part of the screw rod (2-1) is provided with a nut (2-2) and a locking device at the intersection of steel bars at the lower side of the frame (1).

6. The embedded bolt fixing device according to claim 5, characterized in that: one end of the cross handle (2-3) is pressed on the steel bar of the cross point on the upper side, and the other end of the cross handle (2-3) is inserted under the steel bar of the cross point on the lower side.