Positioning device for assisting connection of inner sleeve
Through the positioning device combining L-shaped positioning parts and cable tie, the problem of alignment between inner sleeves and sleeves is solved, and an efficient, safe and low-cost construction solution for the connection of inner sleeves in modular buildings is realized.
Patent Information
- Application Number
- CN202422796594.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-18
- Publication Date
- 2025-08-08
- Estimated Expiration
- 2034-11-18
AI Technical Summary
In modular buildings, during the connection between the inner sleeve and the casing, it is difficult to align the inner sleeves of the four columns at the same time when hoisting the ceiling panel, and multiple people need to cooperate, which affects the construction speed and assembly quality.
A positioning device consisting of four L-shaped positioning parts with the same structure is arranged at the four corners outside the lower sleeve connection end, with a correcting limit function, and is fixed with a cable tie. The L-shaped positioning parts are made of ultra-high molecular weight polyethylene material to reduce friction, and position the sleeve one by one, providing positioning guidance, and can be reused.
The lifting process is simplified, labor demand is reduced, construction safety and assembly speed is improved, labor costs are reduced, and carbon steel components are not damaged. It has a simple structure, strong versatility, and is easy to disassemble and assemble.
Smart Images

Figure CN223203416U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of positioning devices, in particular to a positioning device that assists inner sleeve connection. Background Art
[0002] At present, the inner sleeve connection is widely used in modular buildings due to its advantages such as non-protruding connection parts, high degree of integration of connection parts, and fully detachable bolt connection.
[0003] To ensure reliable force transmission during the inner sleeve connection, the dimensional tolerances between the inner sleeve and the casing are typically small. When the inner sleeve is used to connect the column to the roof plate, the roof plate must be aligned with the inner sleeves of all four columns during installation. This process is challenging in practice and typically requires the coordinated efforts of multiple installation personnel, impacting both construction speed and assembly quality. Utility Model Content
[0004] The purpose of the utility model is to provide a positioning device for auxiliary inner sleeve connection to solve the above problems, which is conducive to reducing the number of personnel in the lifting process, improving construction safety, reducing labor costs, facilitating personnel management, and increasing assembly speed.
[0005] Technical Solution: This utility model provides a positioning device to assist in the connection of an inner sleeve. The device comprises four identical L-shaped positioning members, positioned at the four corners of the outer side of the lower sleeve connection. Horizontal alignment teeth are symmetrically positioned on either side of the L-shaped positioning members. Cable tie slots are located on the outer sides of the upper and lower midsections of the L-shaped positioning members. After installation, cable ties are wrapped around the slots to secure the connection. The device has a deviation correction and position limiting function, assisting in the alignment of the sleeve and inner sleeve. It is easy to assemble and disassemble and is reusable.
[0006] Furthermore, in the aforementioned positioning device for assisting the inner sleeve connection, the four L-shaped positioning members have a 2mm gap between them, corresponding to the sleeve size tolerance. The L-shaped positioning member 1 is secured by the friction force of the cable tie, and even if the inner sleeve has an error or is smaller in size, it can still be installed and positioned.
[0007] Furthermore, in the positioning device for assisting the connection of the inner sleeve, a positioning groove is provided on the upper end of the L-shaped positioning member to provide a positioning guide for the installation of the sleeve.
[0008] Furthermore, in the aforementioned positioning device for assisting inner sleeve connection, the L-shaped positioning member is made of ultra-high molecular weight polyethylene. This material has self-lubricating properties, significantly reducing friction between the sleeve and the positioning member. Furthermore, its strength and rigidity are far lower than those of carbon structural steel. The force exerted on the sleeve by the material satisfies the positioning function while being insufficient to damage the carbon steel component.
[0009] Furthermore, in the above-mentioned positioning device for assisting the connection of the inner sleeve, when the L-shaped positioning piece is installed, the height of the positioning groove is higher than the sleeve.
[0010] Furthermore, in the aforementioned positioning device for assisting inner sleeve connection, the L-shaped positioning member is positioned one by one during installation and positioning, and the positioning grooves provided on the L-shaped positioning member at different sleeve positions extend to different lengths. Positioning each sleeve one by one during the hoisting process avoids positioning all four sleeves simultaneously, thereby reducing installation difficulty and improving efficiency.
[0011] Furthermore, in the above-mentioned positioning device for assisting the connection of the inner sleeve, the cable tie is made of nylon, rubber or PVC.
[0012] Furthermore, in the aforementioned positioning device for assisting the connection of the inner sleeve, the clamping force of the cable tie in the lower cable tie groove is greater than or equal to the clamping force of the upper positioning groove near the positioning groove. This ensures the force required to secure the L-shaped positioning member and prevents excessive tightening of the upper portion of the L-shaped positioning member from affecting the installation of the sleeve if the inner sleeve and the sleeve are too large.
[0013] It can be seen from the above technical solution that the utility model has the following beneficial effects: the positioning device for assisting the connection of the inner sleeve described in the utility model has a simple structure, is easy to use, and has strong versatility, which is beneficial to construction safety, labor costs, personnel management and assembly speed. It has a self-lubricating function, can rely on the weight of the casing to fall into place, has a correction and limiting function, can assist the inner sleeve and the casing to be aligned, has low cost, and the auxiliary parts are easy to disassemble and assemble and can be reused. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is an exploded view of the installation of a positioning device for assisting inner sleeve connection in the utility model;
[0015] Figure 2 This is a schematic diagram of the installation of a positioning device for assisting inner sleeve connection in the utility model.
[0016] In the figure: L-shaped positioning member 1, horizontal alignment teeth 11, cable tie groove 12, positioning groove 13, cable tie 2. DETAILED DESCRIPTION
[0017] Example 1
[0018] like Figure 1-2The illustrated positioning device for assisting inner sleeve connection consists of four identical L-shaped positioning members 1, positioned at the four corners outside the lower sleeve connection end. Symmetrical horizontal alignment teeth 11 are located on either side of the L-shaped positioning members 1. During installation, the L-shaped positioning members 1 are horizontally aligned and mutually restrained. Cable tie grooves 12 are located on the outer sides of the upper and lower portions of the L-shaped positioning members 1. After installation, cable ties 2 are wrapped around the cable tie grooves 12 to secure the connection. This device provides a corrective and position-limiting function, assisting in alignment between the sleeve and the inner sleeve. It is easy to assemble and disassemble and is reusable.
[0019] In this embodiment, a positioning groove 13 is provided on the upper end of the L-shaped positioning member 1 to provide a positioning guide for the installation of the sleeve.
[0020] In this embodiment, the L-shaped positioning member 1 is made of ultra-high molecular weight polyethylene. This material has self-lubricating properties, significantly reducing friction between the sleeve and the positioning member. Its strength and rigidity are far lower than those of carbon structural steel. The force it exerts on the sleeve satisfies its positioning function while being insufficient to damage the carbon steel component.
[0021] In this embodiment, the cable tie 2 is made of nylon, rubber or PVC.
[0022] Example 2
[0023] On the basis of Example 1, in this embodiment, as Figure 2 The illustrated positioning device assists in the connection of an inner sleeve. When the L-shaped positioning member 1 is installed, the positioning groove 13 is higher than the sleeve. During installation and positioning, the L-shaped positioning member 1 is positioned one by one, with the protruding lengths of the positioning grooves 13 on different sleeves varying. Positioning each sleeve individually during the hoisting process avoids positioning all four sleeves simultaneously, reducing installation difficulty and improving efficiency.
[0024] In this embodiment, the L-shaped positioning members 1 have a 2mm gap between the four members, corresponding to the sleeve size tolerance. The L-shaped positioning members 1 are fixed by the friction force of the cable tie 2, and can complete the installation and positioning even if the inner sleeve has an error or is smaller in size.
[0025] In this embodiment, the clamping force of the cable tie 2 at the lower cable tie groove 12 is greater than or equal to the clamping force of the upper positioning groove 13 near the positioning groove 13. This ensures the force to fix the L-shaped positioning member 1 and prevents excessive tightening of the upper portion of the L-shaped positioning member 1 from affecting the installation of the sleeve when the inner sleeve and the sleeve are too large.
[0026] It should be noted that the above description is merely a technical solution of the utility model and is not intended to be limiting. Although the utility model has been described in detail with reference to preferred embodiments, those skilled in the art will appreciate that modifications or equivalent substitutions may be made to the technical solution of the utility model without departing from the scope of the technical solution of the utility model, and such modifications or equivalent substitutions shall be encompassed by the claims of the utility model.
Claims
1. A positioning device for assisting inner sleeve connection, characterized in that: The invention is composed of four L-shaped positioning members (1) with the same structure. The L-shaped positioning members (1) are arranged at the four corners outside the connecting end of the lower inner sleeve. Horizontal alignment teeth (11) are arranged symmetrically on both sides of the L-shaped positioning member (1). Tie grooves (12) are arranged on the outer sides of the upper and lower parts of the L-shaped positioning member (1). After the L-shaped positioning member (1) is installed, a tie (2) is wrapped around the tie groove (12) to fix the connection.
2. A positioning device for assisting inner sleeve connection according to claim 1, characterized in that: A 2mm gap is reserved between the four L-shaped positioning pieces (1), corresponding to the size tolerance of the sleeve.
3. A positioning device for assisting inner sleeve connection according to claim 1, characterized in that: A positioning groove (13) is provided at the upper end of the L-shaped positioning piece (1).
4. A positioning device for assisting inner sleeve connection according to claim 1, characterized in that: The L-shaped positioning piece (1) is made of ultra-high molecular weight polyethylene material.
5. The positioning device for assisting inner sleeve connection according to claim 3, characterized in that: When the L-shaped positioning member (1) is installed, the height of the positioning groove (13) is higher than that of the inner sleeve.
6. A positioning device for assisting inner sleeve connection according to claim 1, characterized in that: During the installation and positioning process, the L-shaped positioning piece (1) is positioned one by one, and the positioning grooves (13) provided on the inner sleeve of the L-shaped positioning piece (1) at different positions have different extending lengths.
7. The positioning device for assisting inner sleeve connection according to claim 1, characterized in that: The cable tie (2) is made of nylon, rubber or PVC.
8. The positioning device for assisting inner sleeve connection according to claim 1, characterized in that: The hoop force of the cable tie (2) at the lower cable tie groove (12) is greater than or equal to the hoop force of the upper positioning groove (13) near the positioning groove (13).