A flare bolt for use in a confined space

Abstract

The utility model discloses a flared bolt for narrow space, including the screw cap, the one side of screw cap is provided with screw rod, the one side of screw rod is provided with the inclined slot, and the inclined slot is movably installed with the triangular block, the one side of triangular block is installed with the top contact disc through the rotating subassembly, be provided with the removal limit component between triangular block and screw rod, this flared bolt for narrow space, and the triangular block is placed in the inclined slot and is inserted, and the removal limit component is set, can realize the limit placement, after placing the screw rod in the screw hole, after rotating through the thread, the screw rod will extend into the inside, the triangular block will be inserted into the inclined slot under the extrusion and the action of pushing, through the strutting of both sides, the screw rod end will push to both sides, thereby can realize the effect of flaring, even in the narrow area, also need not to use other flaring tool, after the screwing, can realize the effect of automatic flaring.

Description

Technical Field

[0001] This utility model relates to the field of bolt technology, and in particular to a flared bolt for use in narrow spaces. Background Technology

[0002] Bolt: A mechanical part, a cylindrical threaded fastener fitted with a nut. It is a type of fastener consisting of a head and a shank (a cylinder with external threads). A flared bolt is a bolt with an expandable section at one end. It is usually used to fix equipment or brackets on concrete foundations or walls. Through a special structural design, this type of bolt can be tightened into a pre-drilled hole by hammering or other means during installation.

[0003] Traditional bolts achieve a connection and compression effect by tightening them. However, the bolts require other tools to be used for flaring during the rotation and compression process. In narrow spaces, these other tools are difficult to operate and use, increasing the difficulty of operation. Therefore, a flaring bolt for narrow spaces is proposed. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a flared bolt for use in confined spaces, thereby solving the aforementioned problems.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: A flared bolt for use in confined spaces includes a nut, a screw rod on one side of the nut, a slanted slot on one side of the screw rod, a triangular block movably mounted in the slanted slot, a top contact plate mounted on one side of the triangular block via a rotating assembly, and a movable limiting assembly between the triangular block and the screw rod.

[0006] Preferably, the triangular block has inclined extrusion surfaces on both sides, the inclined groove has a triangular structure, and the inclined extrusion surfaces are adapted to the inclined groove.

[0007] Preferably, the movable limiting component includes a limiting groove formed on the inner wall of the inclined slot, and a limiting slider is fixedly installed on the side of the inclined extrusion surface, and the limiting slider is slidably installed in the limiting groove.

[0008] Preferably, the rotating assembly includes a convex rotating slot formed at the bottom of the top contact plate, and a convex rotating column is fixedly installed on the top of the triangular block, the convex rotating column being rotatably installed in the convex rotating slot.

[0009] Preferably, the top contact plate has multiple anti-slip grooves on its side.

[0010] Preferably, the outer side of the screw has multiple threaded slots.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows: This flared bolt for narrow spaces has a triangular block inserted into the inclined slot. The movable limiting component can achieve limited placement. After the screw is placed in the threaded hole, the screw will extend into the interior after the thread is rotated. The triangular block will be inserted into the inclined slot under the squeezing and pushing action. By spreading on both sides, the end of the screw will be pushed to both sides, thereby achieving the flaring effect. Even in narrow areas, there is no need to use other flaring tools. After tightening, the automatic flaring effect can be achieved. Attached Figure Description

[0012] Figure 1 This is a three-dimensional structural diagram of the present invention viewed from below; Figure 2 This is a top-view three-dimensional structural diagram of the present invention; Figure 3 This is a cross-sectional structural diagram of the present invention; Figure 4 This utility model Figure 3 A schematic diagram of the structure of part A.

[0013] In the diagram: 1. Nut; 2. Screw; 3. Threaded groove; 4. Inclined groove; 5. Triangular block; 6. Inclined extrusion surface; 7. Top contact plate; 8. Anti-slip groove; 9. Convex rotating groove; 10. Convex rotating column; 11. Limiting groove; 12. Limiting slider. Detailed Implementation

[0014] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0015] Example: Refer to Figure 1-4 A flared bolt for use in narrow spaces includes a nut 1, a screw 2 on one side of the nut 1, a slanted slot 4 on one side of the screw 2, a triangular block 5 movably installed in the slanted slot 4, a top contact plate 7 mounted on one side of the triangular block 5 via a rotating assembly, a moving limit assembly between the triangular block 5 and the screw 2, and multiple threaded slots 3 on the outer side of the screw 2.

[0016] Furthermore, inclined extrusion surfaces 6 are provided on both sides of the triangular block 5, and the inclined groove 4 has a triangular structure. The inclined extrusion surfaces 6 and the inclined groove 4 are adapted to each other. An inclined groove 4 is opened at the end of the screw 2. The initial stage of the inclined groove 4 is relatively narrow, and the external width of the entire screw 2 is consistent. The triangular block 5 is inserted and placed on the inclined groove 4. The limiting slider 12 on the triangular block 5 can be fitted and slidably installed in the limiting groove 11. The limiting groove 11 has a large thickness and can have an interference fit effect. Since the screw 2 has a certain strength and toughness, after the triangular block 5 is pressed into the inclined groove 4, it has a certain anti-falling effect under the action of friction.

[0017] Furthermore, the movable limiting assembly includes a limiting groove 11 formed on the inner wall of the inclined slot 4, a limiting slider 12 fixedly installed on the side of the inclined extrusion surface 6, and the limiting slider 12 slidably installed in the limiting groove 11. The rotating assembly includes a convex rotating slot 9 formed on the bottom of the top contact plate 7, a convex rotating column 10 fixedly installed on the top of the triangular block 5, and the convex rotating column 10 rotatably installed in the convex rotating slot 9. The side of the top contact plate 7 is provided with multiple anti-slip grooves 8. After the screw 2 is placed in the threaded hole, After the screw 2 rotates through the thread, it will extend into the interior. At this time, the top contact plate 7 will contact the inner wall of the top of the screw groove. As the screw 2 continues to screw in, the triangular block 5 will be inserted into the inclined slot 4 under the action of squeezing and pushing. At this time, the inclined slot 4 will be opened. The anti-slip groove 8 is provided, and the top contact plate 7 can contact the inner wall of the screw groove for anti-slip. The convex rotating slot 9 and convex rotating column 10 are provided. During the rotation of the screw 2, the triangular block 5 will rotate, and the triangular block 5 can rotate relative to the top contact plate 7.

[0018] Furthermore, the inclined extrusion surface 6 continues to penetrate into the inclined groove 4. Through the expansion on both sides, the end of the screw 2 will be pushed to both sides, thereby achieving the effect of widening. Even in narrow areas, there is no need to use other widening tools. After tightening, the effect of automatic hole widening can be achieved.

[0019] In use: The screw 2 with nut 1 is threaded onto the equipment. A triangular block 5 is inserted into the inclined slot 4. After the screw 2 is placed in the threaded hole, it will extend into the interior by rotating the screw. At this time, the top contact plate 7 will contact the top inner wall of the screw groove. As the screw 2 continues to screw in, the triangular block 5 will be pushed into the inclined slot 4 by the squeezing action. The inclined slot 4 will be opened, and the inclined squeezing surface 6 will continue to penetrate into the inclined slot 4. Through the opening on both sides, the end of the screw 2 will be pushed to both sides, thereby achieving the effect of widening the opening. Even in narrow areas, there is no need to use other widening tools. After tightening, the automatic widening effect can be achieved, which is quite convenient.

[0020] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A flared bolt for use in confined spaces, comprising a nut (1), characterized in that, A screw (2) is provided on one side of the nut (1), and a slanted slot (4) is provided on one side of the screw (2). A triangular block (5) is movably installed in the slanted slot (4). A top contact plate (7) is installed on one side of the triangular block (5) through a rotating assembly. A moving limit assembly is provided between the triangular block (5) and the screw (2).

2. A flared bolt for use in confined spaces according to claim 1, characterized in that, The triangular block (5) has inclined extrusion surfaces (6) on both sides, and the inclined groove (4) has a triangular structure. The inclined extrusion surfaces (6) are adapted to the inclined groove (4).

3. A flared bolt for use in confined spaces according to claim 2, characterized in that, The movable limiting component includes a limiting slide groove (11) opened on the inner wall of the inclined slot (4), and a limiting slider (12) is fixedly installed on the side of the inclined extrusion surface (6). The limiting slider (12) is slidably installed in the limiting slide groove (11).

4. A flared bolt for use in confined spaces according to claim 1, characterized in that, The rotating assembly includes a convex rotating slot (9) at the bottom of the top contact plate (7), and a convex rotating column (10) is fixedly installed on the top of the triangular block (5). The convex rotating column (10) is rotatably installed in the convex rotating slot (9).

5. A flared bolt for use in confined spaces according to claim 1, characterized in that, The top contact plate (7) has multiple anti-slip grooves (8) on its side.

6. A flared bolt for use in confined spaces according to claim 1, characterized in that, The screw (2) has multiple threaded slots (3) on its outer side.

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