Split bolt structure convenient to disassemble

By designing an adjustable-length sleeve and a variety of locking mechanisms, the problem of sleeve cutting during tie bolt disassembly was solved, enabling convenient disassembly and efficient operation.

CN223974886UActive Publication Date: 2026-03-06SUZHOU MUNICIPAL ENG GRP CO LTD
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Patent Information

Application Number
CN202520645384.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-03-06
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

The existing tie bolts require cutting the sleeves protruding from the wall during disassembly, which is cumbersome and inconvenient.

Method used

Design a sleeve structure that includes a storage tube, a tube head, and a telescopic tube. The length of the telescopic tube can be adjusted to accommodate different wall thicknesses. The design also incorporates various assembly and disassembly methods, including the use of manual and electric wrenches, with clamping components and locking devices.

Benefits of technology

It eliminates the need to cut the sleeve after the concrete wall has solidified, making the disassembly process more convenient. Furthermore, the locking components offer diverse disassembly and assembly methods, improving operational efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The split bolt structure convenient to disassemble comprises a threaded rod, the outer surface of the threaded rod is sleeved with a sleeve, the sleeve is composed of a containing pipe, a pipe head and a telescopic pipe, the inner wall of the containing pipe is provided with an internal thread, and the telescopic pipe is provided with an external thread. The end, close to the containing pipe, of the pipe head is fixedly connected with a telescopic pipe, the outer diameter of the telescopic pipe is equal to the inner diameter of the containing pipe, external threads matched with the internal threads are formed in the outer wall of the telescopic pipe, and clamping assemblies are arranged at the two ends of the threaded rod respectively. According to the split bolt, the length of the sleeve can be freely adjusted, the length of the sleeve and the thickness of the to-be-poured wall are adjusted to be consistent, when the split bolt needs to be disassembled after the concrete wall is solidified, the part, extending out of the wall, of the sleeve does not need to be cut, and therefore the disassembling step of the split bolt is more convenient.
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Description

Technical Field

[0001] This utility model relates to the field of tie bolt technology, specifically a tie bolt structure that is easy to disassemble. Background Technology

[0002] Tie bolts are mainly used in building formwork systems. Their working principle involves using the tension generated by tightening the nuts at both ends to resist the lateral pressure generated during concrete pouring. Specifically, the tie bolts pass through the formwork on both sides and the supporting joists (such as timber or steel pipes) behind the formwork. Then, the nuts at both ends are tightened, firmly connecting and fixing the formwork and joists together, making the formwork a single structure. The space between the two formwork sections is used for pouring concrete walls. A sleeve is fitted onto the outer surface of the threaded rod located inside the concrete wall to prevent direct contact between the threaded rod and the concrete.

[0003] However, the thickness of the concrete wall to be poured varies, so the length of the tie rod sleeve is usually designed to be a large value to ensure that the sleeve can be used for different wall types. For this reason, after the concrete wall has solidified, both ends of the tie rod sleeve protrude outside the wall. After pulling out the threaded rod inside the sleeve, workers need to cut the protruding sleeve to complete the removal of the entire tie rod, which is quite cumbersome. Therefore, a tie rod structure that is easier to disassemble is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a tie bolt structure that is easy to disassemble, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a tie bolt structure that is easy to disassemble, comprising a threaded rod, a sleeve fitted on the outer surface of the threaded rod, the sleeve being composed of a receiving tube, a tube head, and a telescopic tube, an internal thread being formed on the inner wall of the receiving tube, a telescopic tube being fixedly connected to one end of the tube head near the receiving tube, the outer diameter of the telescopic tube being equal to the inner diameter of the receiving tube, an external thread being formed on the outer wall of the telescopic tube that is compatible with the internal thread, and clamping components being provided at both ends of the threaded rod.

[0006] As a further preferred embodiment of this technical solution, the two clamping components are symmetrically distributed.

[0007] As a further preferred embodiment of this technical solution, the clamping assembly consists of a pressure plate and a locking element, which are arranged sequentially in a direction away from the sleeve.

[0008] As a further preferred embodiment of this technical solution, the cross-section of the pressure plate is an I-shaped structure, and a through hole is provided in the middle of the pressure plate, the inner diameter of which is larger than the outer diameter of the threaded rod.

[0009] As a further preferred embodiment of this technical solution, the pressure plate is made of Q235 steel.

[0010] As a further preferred embodiment of this technical solution, the locking component has a threaded hole at its axis, the inner wall of the threaded hole is threadedly engaged with the outer wall of the threaded rod, the locking component consists of a pad, a main body, a handle and a connecting piece, the end of the main body near the sleeve is fixedly connected to the pad, the end of the main body away from the sleeve is fixedly connected to the connecting piece, and two handles are fixedly connected to the side wall of the main body, the two handles being symmetrically distributed on both sides of the main body.

[0011] As a further preferred embodiment of this technical solution, the cross-section of the connector is a regular hexagonal structure.

[0012] This utility model provides a tie bolt structure that is easy to disassemble, and has the following beneficial effects:

[0013] This utility model, through its unique structural design, allows for free adjustment of the sleeve length, ensuring that the sleeve length matches the thickness of the wall to be poured. When the tie bolt needs to be disassembled after the concrete wall has solidified, there is no need to cut the part of the sleeve that protrudes from the wall, thus making the disassembly of the tie bolt more convenient.

[0014] Meanwhile, the structural design of the handle and connector in the locking component allows for both manual rotation of the handle and placement of the locking component during disassembly and assembly. Alternatively, the inner hexagonal socket of an electric wrench can be fitted onto the connector for disassembly and assembly, making the disassembly and assembly of the locking component more diverse and convenient. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0016] Figure 2 This is a breakdown diagram of the overall structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the sleeve in this utility model;

[0018] Figure 4 This is a schematic diagram of the structure of the pressure plate and locking component of this utility model;

[0019] In the diagram: 1. Sleeve; 2. Threaded rod; 3. Pressure plate; 4. Locking component; 5. Storage tube; 6. Tube end; 7. Telescopic tube; 8. Through hole; 9. Pad; 10. Main body; 11. Handle; 12. Connector; 13. Threaded hole. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention.

[0021] This utility model provides a technical solution: such as Figures 1 to 4 As shown in this embodiment, a detachable tie bolt structure includes a threaded rod 2, with a sleeve 1 fitted on the outer surface of the threaded rod 2. The sleeve 1 consists of a receiving tube 5, a tube head 6, and a telescopic tube 7. The receiving tube 5 has an internal thread on its inner wall. The tube head 6 is fixedly connected to the telescopic tube 7 at one end near the receiving tube 5. The outer diameter of the telescopic tube 7 is equal to the inner diameter of the receiving tube 5. The outer wall of the telescopic tube 7 has an external thread that matches the internal thread. Clamping assemblies are respectively provided at both ends of the threaded rod 2. The two clamping assemblies are symmetrically distributed. The clamping assemblies consist of a pressure plate 3 and a locking element 4. The pressure plate 3 and the locking element 4 are arranged sequentially in the direction away from the sleeve 1.

[0022] The pressure plate 3 has an I-shaped cross-section and a through hole 8 in the middle of the pressure plate 3. The inner diameter of the through hole 8 is larger than the outer diameter of the threaded rod 2. The pressure plate 3 is made of Q235 steel.

[0023] The locking component 4 has a threaded hole 13 at its shaft center. The inner wall of the threaded hole 13 is threadedly engaged with the outer wall of the threaded rod 2. The locking component 4 consists of a pad 9, a main body 10, a handle 11, and a connector 12. The pad 9 is fixedly connected to the end of the main body 10 near the sleeve 1, and the connector 12 is fixedly connected to the end of the main body 10 away from the sleeve 1. Two handles 11 are fixedly connected to the side wall of the main body 10, and the two handles 11 are symmetrically distributed on both sides of the main body 10.

[0024] The cross-section of the connector 12 is a regular hexagonal structure.

[0025] With this configuration, when disassembling and assembling the locking component 4, one can either manually rotate the handle 11 to disassemble or assemble the locking component 4, or place the inner hexagonal socket of the electric wrench onto the connecting component 12 for disassembly and assembly, making the disassembly and assembly of the locking component 4 more diverse and convenient.

[0026] This utility model provides a tie bolt structure that is easy to disassemble, and its specific working principle is as follows:

[0027] The working principle of tie bolts, which is existing technology, is briefly described below:

[0028] The tie bolts pass through the templates on both sides and the joists (such as timber, steel pipes, etc.) behind the templates. Then, the nuts at both ends are tightened to firmly connect and fix the templates and joists together, making the templates a whole structure. The space between the two templates is used to pour concrete walls. After the concrete walls solidify, the sleeves of the tie bolts will remain inside the walls. At this time, the nuts are removed, and the threaded rods can be pulled out from the sleeves. Then, the part of the sleeves that protrudes from the walls is cut to complete the disassembly of the entire tie bolt.

[0029] When using this application, rotate the pipe head 6 to adjust the length of the telescopic pipe 7 extending out of the receiving pipe 1, thereby adjusting the overall length of the sleeve 1. Depending on the thickness of the concrete wall to be poured, adjust the length of the sleeve 1 to match the thickness of the wall to be poured. With this setting, after the concrete wall is poured, the two ends of the sleeve 1 will not extend out of the outer wall of the wall. In this way, when the tie bolt needs to be removed after the concrete wall has solidified, it is not necessary to cut the part of the sleeve 1 that extends out of the wall, thus making the removal of the tie bolt more convenient.

[0030] The structural design of the handle 11 and the connector 12 in the locking component 4 allows for both manual rotation of the handle 11 and placement of the locking component 4 for disassembly and assembly. Alternatively, the inner hexagonal socket of the electric wrench can be placed on the connector 12 for disassembly and assembly, making the disassembly and assembly of the locking component 4 more diverse and convenient.

[0031] 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 detachable turnbuckle structure comprising a threaded rod (2), characterized in that: The outer surface of the threaded rod (2) is sleeved with a sleeve (1), the sleeve (1) is composed of a receiving tube (5), a tube head (6) and an expansion tube (7), the inner wall of the receiving tube (5) is provided with an internal thread, the expansion tube (7) is fixedly connected to one end of the receiving tube (5) near the tube head (6), the outer diameter of the expansion tube (7) is equal to the inner diameter of the receiving tube (5), the outer wall of the expansion tube (7) is provided with an external thread matched with the internal thread, and the threaded rod (2) is provided with clamping assemblies at both ends.

2. The easily detachable toggle bolt structure according to claim 1, wherein: Two clamping assemblies are symmetrically distributed.

3. The easily detachable toggle bolt structure of claim 1, wherein: The clamping assembly is composed of a pressing plate (3) and a locking piece (4), and the pressing plate (3) and the locking piece (4) are sequentially arranged away from the sleeve (1).

4. The easily detachable toggle bolt structure according to claim 3, wherein: The cross section of the pressing plate (3) is an I-shaped structure, a through hole (8) traversing the pressing plate (3) is formed in the middle of the pressing plate (3), and the inner diameter of the through hole (8) is greater than the outer diameter of the threaded rod (2).

5. The easily detachable toggle bolt structure of claim 3, wherein: The pressing plate (3) is made of Q235 steel material.

6. The easily detachable toggle bolt structure of claim 3, wherein: A threaded hole (13) is formed at the axis of the locking piece (4), the inner wall of the threaded hole (13) is threadedly connected with the outer wall of the threaded rod (2), the locking piece (4) is composed of a backing plate (9), a main body (10), a handle (11) and a connecting piece (12), the main body (10) is fixedly connected with the backing plate (9) at one end near the sleeve (1), the main body (10) is fixedly connected with the connecting piece (12) at one end away from the sleeve (1), and the side wall of the main body (10) is fixedly connected with two handles (11), and the two handles (11) are symmetrically distributed on the two sides of the main body (10).

7. The easily detachable toggle bolt structure of claim 6, wherein: The cross section of the connecting piece (12) is a regular hexagonal structure.