Detachable one-way bolt structure

Abstract

The utility model relates to a detachable one-way bolt structure, which comprises a steel structure and a one-way bolt provided with a bolt hole, and is characterized in that the one-way bolt comprises a bolt rod, a nut and a gasket, the bolt rod is provided with a through hole and a cavity, a limiting plate and a hammer bolt which is detachably mounted are arranged in the cavity, and the nut and the gasket are arranged in the limiting plate. The hammer head bolt is provided with a gravity center end, a light center end, a fixing hole and an inclined hole, the light center end is connected with the limiting plate, the inclined hole and the gravity center end are flush with the bolt rod, and a one-way bolt can conveniently penetrate into the bolt hole. The bolt rod is provided with the through hole, the cavity and other structures to be matched with the hammer head bolt, the hammer head bolt can freely rotate by an angle through the cavity, the locking state and the unlocking state are achieved, the problem that after the bolt is fastened, a tail accessory cannot restore to the original state again is solved, and the bolt in an assembly type steel structure is protectively disassembled and assembled and can be repeatedly used.

Description

Technical Field

[0001] This utility model specifically relates to a detachable one-way bolt structure, belonging to the field of building engineering. Background Technology

[0002] In steel structure buildings, steel beam-column connections are commonly used. Since the column cross-section is a closed rectangular structure, one-way bolts are often used to connect the steel beam and the steel column. This is an application scenario where the connection is installed from one side of the steel beam and ensures a safe and reliable connection. When the bolt is screwed in, the tail fitting of the bolt expands and deforms to tightly fit the hole wall, providing strong anchoring force and fixing the steel beam and steel column. However, since the anchoring connection is achieved through the deformation of the bolt's tail fitting, there are certain problems: ① After the bolt is tightened, the tail fitting cannot return to its original shape. Therefore, bolts in prefabricated steel structures cannot be disassembled and reused under protective conditions; ② Under repeated or continuous loads, fatigue failure of the bolt tail fitting structure may occur at the bolt connection, leading to overall instability of the bolt connection structure.

[0003] Therefore, in order to address the shortcomings of the existing technology, a detachable one-way bolt structure is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a detachable one-way bolt structure to solve the problems mentioned in the background art.

[0005] This utility model achieves the above-mentioned objective through the following technical solution: a detachable one-way bolt structure, comprising a steel structure and a one-way bolt, wherein the steel structure has bolt holes, characterized in that the one-way bolt comprises a bolt shank, a nut, and a washer, the bolt shank having a through hole and a cavity, the cavity containing a limit plate and a detachable hammer bolt, the hammer bolt having a center of gravity end, a center of light end, a fixing hole, and an oblique hole, the center of light end being connected to the limit plate, the oblique hole and the center of gravity end being flush with the bolt shank, facilitating the insertion of the one-way bolt into the bolt hole, thereby achieving a fastening connection between the steel structure and the one-way bolt.

[0006] Furthermore, the one-way bolt also includes a fixing rod, which is inserted and connected to the fixing hole on the hammer bolt through a hole.

[0007] Furthermore, the one-way bolt has a pointed blade at its front end for rotating and adjusting the one-way bolt.

[0008] Furthermore, the hammer bolt utilizes the cavity on the bolt rod to freely rotate at an angle, allowing the one-way bolt to achieve both locked and unlocked states.

[0009] The beneficial effects of this utility model are:

[0010] This invention utilizes a structure with through holes and cavities on the bolt shank, combined with a hammer bolt. The hammer bolt can rotate freely within the cavity, achieving both locked and unlocked states. This solves the problem that the tail component cannot be restored to its original shape after bolt tightening. In prefabricated steel structures, bolts can be reassembled and disassembled protectively, and can be reused. In the locked state, after the bolt is inserted into the hole of the connected steel structure, the hammer bolt is rotated to a vertical position, and then the washer and nut are tightened to lock the bolt. This avoids the deformation of the tail component of the bolt itself for anchoring, which may lead to fatigue failure of the bolt tail component structure and cause overall instability of the bolt connection structure. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an exploded view of the present invention;

[0013] Figure 3 This is a schematic diagram of the bolt before it is inserted into the present invention;

[0014] Figure 4 This is a schematic diagram of the bolt after it has been inserted into the present invention.

[0015] Figure 5 This is a schematic diagram of the bolt locking mechanism of this utility model;

[0016] Figure 6 This is a schematic diagram of the bolt unlocking method of this utility model;

[0017] In the diagram: 1. Steel structure; 1.1 Bolt hole; 2. One-way bolt; 2.1 Bolt rod; 2.11 Cavity; 2.112 Limiting plate; 2.12 Hole; 2.13 Through hole; 2.14 Knife edge; 2.2 Nut; 2.3 Washer; 2.4 Fixing rod; 2.5 Hammer bolt; 2.51 Center of gravity end; 2.52 Angled hole; 2.53 Fixing hole; 2.54 Light center end; 3. Movable pin. Detailed Implementation

[0018] 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.

[0019] Please see Figures 1-6 As shown, Figures 1-6 The diagram schematically illustrates a detachable one-way bolt structure according to the present invention.

[0020] A detachable one-way bolt structure includes a steel structure 1 and a one-way bolt 2. The steel structure 1 has a bolt hole 1.1. The one-way bolt 2 includes a bolt shank 2.1, a nut 2.2, and a washer 2.3. The bolt shank 2.1 has a through hole 2.13 and a cavity 2.11. The cavity 2.11 contains a limit plate 2.112 and a detachable hammer bolt 2.5. The hammer bolt 2.5 has a center of gravity end 2.51, a center of light end 2.54, a fixing hole 2.53, and an oblique hole 2.52. The center of light end 2.54 is connected to the limit plate 2.112. The oblique hole 2.52 and the center of gravity end 2.51 are flush with the bolt shank 2.1, facilitating the insertion of the one-way bolt 2 into the bolt hole 1.1 to achieve a tight connection between the steel structure 1 and the one-way bolt 2.

[0021] Furthermore, the one-way bolt 2 also includes a fixing rod 2.4, which is inserted and connected to the fixing hole 2.53 on the hammer bolt 2.5 through the hole 2.12.

[0022] Furthermore, the front end of the one-way bolt 2 is provided with a knife-shaped notch 2.14 for rotating and adjusting the one-way bolt 2.

[0023] Furthermore, the hammer bolt 2.5 can be freely rotated at an angle using the cavity 2.11 on the bolt rod 2.1 to achieve both locked and unlocked states.

[0024] Among them, such as Figure 5 As shown, after the one-way bolt 2 is inserted into the steel structure 1, the front of the one-way bolt 2 is provided with a pointed blade 2.14. A screwdriver can be used to rotate the one-way bolt 2 counterclockwise through the pointed blade 2.14. When the through hole 2.13 on the one-way bolt 2 is rotated to the top, the hammer bolt 2.5 rotates in the direction of the center of gravity 2.51 under the action of gravity. The hammer bolt 2.5 and the bolt rod 2.1 are perpendicular to each other in a cross shape. Then, the washer 2.3 and the nut 2.2 are tightened to make the hammer bolt 2.5 fit tightly against the steel structure 1, thereby achieving the locking state of the one-way bolt 2.

[0025] This utility model also includes a movable connector 3.

[0026] Among them, such as Figure 6As shown, when it is necessary to disassemble the one-way bolt 2, first loosen the nut 2.2 and washer 2.3. The one-way bolt 2 moves to the rear end so that the cavity 2.11 is fully exposed on one side of the steel structure 1. The movable pin 3 enters through the through hole 2.13 at the front end of the one-way bolt 2, passes through the nut 2.2 and washer 2.3, and the steel structure 1 to contact the inclined hole 2.52 on the hammer bolt 2.5. The inclined hole 2.52 on the hammer bolt 2.5 is designed with an inclined angle to facilitate the movable pin 3 to rotate it to the right until the light end 2.54 contacts the limiting plate 2.112. The limiting plate 2.112 limits the light end 2.54. The inclined hole 2.52, the center of gravity end 2.51, the bolt rod 2.1, and the one-way bolt 2 are flush again, reaching the unlocked state, which facilitates the one-way bolt 2 to be smoothly removed from the bolt hole 1.1, achieving protective disassembly and assembly.

[0027] The beneficial effects of this utility model are:

[0028] This invention utilizes a structure with through holes and cavities on the bolt shank, combined with a hammer bolt. The hammer bolt can rotate freely within the cavity, achieving both locked and unlocked states. This solves the problem that the tail component cannot be restored to its original shape after bolt tightening. In prefabricated steel structures, bolts can be reassembled and disassembled protectively, and can be reused. In the locked state, after the bolt is inserted into the hole of the connected steel structure, the hammer bolt is rotated to a vertical position, and then the washer and nut are tightened to lock the bolt. This avoids the deformation of the tail component of the bolt itself for anchoring, which may lead to fatigue failure of the bolt tail component structure and cause overall instability of the bolt connection structure.

[0029] Installation steps of this utility model:

[0030] Step 1: First, screw the washer 2.3 and nut 2.2 onto the bolt shank 2.1 of the one-way bolt 2. The oblique hole 2.52 and the center of gravity end 2.51 of the hammer bolt 2.5 in the cavity 2.11 are flush with the bolt shank 2.1. Then, insert the one-way bolt 2 into the bolt hole 1.1 on the steel structure 1. Use a screwdriver to rotate the one-way bolt 2 counterclockwise through the tip 2.14 until the through hole 2.13 on the one-way bolt 2 is rotated to the top.

[0031] Step 2: The center point of the hammer bolt 2.5 is fixed on the fixing rod 2.4. Under the action of gravity, it rotates in the direction of the center of gravity end 2.51. The hammer bolt 2.5 and the bolt rod 2.1 are perpendicular to each other. Then, tighten the washer 2.3 and nut 2.2 to make the hammer bolt 2.5 fit tightly against the steel structure 1, thereby achieving the locking state of the one-way bolt 2.

[0032] Step 3: When disassembling the one-way bolt 2, first loosen the nut 2.2 and washer 2.3. Move the one-way bolt 2 to the rear end so that the cavity 2.11 is fully exposed on one side of the steel structure 1. Then, the movable pin 3 enters through the through hole 2.13 at the front end of the one-way bolt 2, passes through the nut 2.2 and washer 2.3, and the steel structure 1 to contact the inclined hole 2.52 on the hammer bolt 2.5. The hammer bolt 2.5 continues until the center end 2.54 contacts the limiting plate 2.112. The inclined hole 2.52 and the center end 2.51, along with the bolt rod 2.1, are flush with the one-way bolt 2 again, making it easy for the one-way bolt 2 to be smoothly removed from the bolt hole 1.1, thus completing the disassembly of the one-way bolt.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0034] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A detachable one-way bolt structure, comprising a steel structure and a one-way bolt, wherein the steel structure has bolt holes, characterized in that, The one-way bolt includes a bolt shank, a nut, and a washer. The bolt shank has a through hole and a cavity. A limit plate and a detachable hammer bolt are installed in the cavity. The hammer bolt has a center of gravity end, a center of light end, a fixing hole, and an oblique hole. The center of light end is connected to the limit plate. The oblique hole and the center of gravity end are flush with the bolt shank, facilitating the insertion of the one-way bolt into the bolt hole to achieve a fastening connection between the steel structure and the one-way bolt.

2. The detachable one-way bolt structure as described in claim 1, characterized in that, The one-way bolt also includes a fixing rod, which is inserted through a hole and connected to a fixing hole on the hammer bolt.

3. The detachable one-way bolt structure as described in claim 2, characterized in that, The one-way bolt also has a pointed blade at its front end for rotating and adjusting the one-way bolt.

4. The detachable one-way bolt structure as described in claim 3, characterized in that, The hammer bolt can be freely rotated by the cavity on the bolt rod, allowing the one-way bolt to achieve both locked and unlocked states.

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