Fixing device for arc-shaped wall body
By combining the positioning center of the pre-embedded anchor bolts with the quadrilateral fastening sleeve, the problem of verticality control in the construction of curved walls is solved, achieving stable support and efficient construction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- THE FOURTH CONSTR ENG COMPANY LTD OF CHINA CONSTR SECOND ENG BUREAU
- Filing Date
- 2025-06-10
- Publication Date
- 2026-05-12
AI Technical Summary
Existing technologies for constructing curved walls suffer from difficulties in controlling verticality, poor stability, and limited adjustment range, failing to meet high-standard construction requirements.
The center is located by pre-embedded anchor bolts, and the fastening sleeve with a quadrilateral cross section and the adjusting screw are combined to achieve universal adjustment and stable support through the support unit. The U-shaped clamp is used to snap onto the main keel, and the length is fixed by locking the nut.
It achieves precise verticality control and stable support for curved walls, improving construction efficiency and quality, and meeting high-standard construction requirements.
Smart Images

Figure CN224228263U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of building engineering technology, and specifically relates to a fixing device for an arc-shaped wall. Background Technology
[0002] In the construction of curved walls, traditional support methods suffer from low adjustment precision and poor stability. Existing technologies employ simple diagonal bracing structures, which cannot achieve precise verticality control, leading to easy deformation of the formwork and difficulty in guaranteeing the quality of concrete forming. Especially when constructing complex curved surfaces, conventional support systems struggle to adapt to changes in curvature, and the adjustment process is time-consuming and labor-intensive. Although some adjustable support devices exist, they still have drawbacks such as limited adjustment range and easy loosening of joints, failing to meet high-standard construction requirements. These shortcomings affect the construction efficiency and quality control of curved walls. Utility Model Content
[0003] This invention provides a fixing device for curved walls, which solves the problem of uncontrollable verticality of curved walls in the prior art.
[0004] This utility model provides a fixing device for an arc-shaped wall, including: a pre-embedded anchor bolt, an adjusting screw, and at least two support units;
[0005] The pre-embedded anchor bolts are set in the structural slab at the center of the curved wall. An adjusting screw is fixedly connected to the top of the pre-embedded anchor bolts, and at least two support units are sleeved on the adjusting screw.
[0006] The support unit includes a fastening sleeve, an upper diagonal brace, and a lower diagonal brace. The inner wall of the fastening sleeve has threads that match the adjusting screw, and the outer contour of the fastening sleeve is a quadrilateral cross-section. The fixed ends of the upper and lower diagonal braces are connected to the outer walls of the fastening sleeve, respectively. The support ends of the upper and lower diagonal braces can be adjusted in the vertical direction, and the support ends are connected to U-shaped clamps for engaging with the main keel of the curved wall.
[0007] Compared with the prior art, the advantages of this utility model are: by using pre-embedded anchor bolts with circular positioning, the force system of all diagonal braces converges at the geometric center of the arc-shaped wall, forming a stable support system; the cooperation between the quadrilateral cross-section fastening sleeve and the screw provides four standardized installation planes for the diagonal brace connection, and also ensures the universal adjustment of the diagonal brace, making installation simple.
[0008] Furthermore, a pair of lugs are fixedly connected to at least one outer side wall of the fastening sleeve. The lugs are provided with a plurality of vertically arranged adjustment holes. The fixed ends of the upper and lower diagonal braces are respectively hinged by fitting pins to the adjustment holes of the lugs.
[0009] Furthermore, the support ends of the upper and lower diagonal braces are hinged to the U-shaped clamp.
[0010] Furthermore, the upper and lower diagonal braces each include: an inner sleeve, an outer sleeve, and a locking nut;
[0011] The locking nut is threaded onto the inner sleeve and is close to one end face of the outer sleeve; one end of the inner sleeve is hinged to the fastening sleeve or U-shaped clamp, and the outer wall is threaded; the inner wall of the outer sleeve is threaded to match the inner sleeve thread; the locking nut is used to fix the adjusted length.
[0012] Furthermore, a washer is provided between two adjacent fastening sleeves. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the use scenario of the fixing device in one embodiment of the present utility model;
[0014] Figure 2 This is a schematic diagram of the fixing device in one embodiment of the present utility model.
[0015] Explanation of reference numerals in the attached figures:
[0016] 1. Support unit; 2. Adjusting screw; 3. Embedded anchor bolt; 4. Curved wall; 5. Main keel; 11. Fastening sleeve; 12. Upper diagonal brace; 13. Lower diagonal brace; 14. U-shaped clamp. Detailed Implementation
[0017] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions in the embodiments of this utility model will be clearly and completely described below in conjunction with the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0018] Please see Figure 1 and Figure 2 This utility model provides a fixing device for an arc-shaped wall, including: a pre-embedded anchor bolt 3, an adjusting screw 2, and at least two support units 1; the pre-embedded anchor bolt 3 is set in the structural plate and located at the center of the arc-shaped wall 4, and the top of the pre-embedded anchor bolt 3 is fixedly connected to the adjusting screw 2, and at least two support units 1 are sleeved on the adjusting screw 2; the support unit 1 includes a fastening sleeve 11, an upper diagonal brace 12, and a lower diagonal brace 13, the inner wall of the fastening sleeve 11 has a thread that matches the adjusting screw 2, and the outer contour of the fastening sleeve 11 is a quadrilateral cross section; the fixed ends of the upper diagonal brace 12 and the lower diagonal brace 13 are respectively connected to the outer wall of the fastening sleeve 11, and the support ends of the upper diagonal brace 12 and the lower diagonal brace 13 can be adjusted in the vertical direction, and the support ends are connected to a U-shaped clamp 14 for engaging with the main keel 5 of the arc-shaped wall 4.
[0019] This utility model provides a fixing device for an arc-shaped wall. Through the pre-embedded anchor bolt 3 with the center positioning, the force system of all diagonal braces converges at the geometric center of the arc-shaped wall to form a stable support system. The cooperation between the quadrilateral cross-section fastening sleeve and the screw provides four standardized installation planes for the diagonal brace connection, and also ensures the universal adjustment of the diagonal brace, making the installation simple.
[0020] Specifically, a pair of lugs are fixedly connected to at least one outer wall of the fastening sleeve 11. The lugs are provided with a plurality of vertically arranged adjustment holes. The fixed ends of the upper inclined brace 12 and the lower inclined brace 13 are respectively hinged to the adjustment holes of the lugs by fitting pins. The supporting ends of the upper inclined brace 12 and the lower inclined brace 13 are hinged to the U-shaped clamp 14.
[0021] The hinged structure specifically enables the support ends of the upper diagonal brace 12 and the lower diagonal brace 13 to be adjusted in the vertical direction and to adapt to the support angle.
[0022] In one specific embodiment, the upper inclined brace 12 and the lower inclined brace 13 each include: an inner sleeve, an outer sleeve, and a locking nut; the locking nut is threaded onto the inner sleeve and is adjacent to one end face of the outer sleeve; one end of the inner sleeve is hinged to the fastening sleeve 11 or the U-shaped clamp 14, and the outer wall is provided with threads; the inner wall of the outer sleeve is provided with threads that mate with the threads of the inner sleeve; the locking nut is used to fix the adjusted length.
[0023] In use, the pre-embedded anchor bolt 3 is precisely fixed at the center of the curved wall 4. Washers and support units 1 are sequentially fitted onto the adjusting screw 2. The height is adjusted by rotating the fastening sleeve 11. Then, the inner and outer sleeves of the diagonal brace are rotated to the design value according to the calculated length. Finally, the main keel 5 is locked with the U-shaped clamp 14. If necessary, the locking nut is finely adjusted to ensure that each diagonal brace is subjected to uniform force and that the verticality error of the template is controlled within 2.5mm / 2m.
[0024] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. If these modifications and variations fall within the scope of the claims of this utility model and their equivalents, they should be considered to be within the protection scope of this utility model.
Claims
1. A fixing device for an arc-shaped wall, characterized in that, include: Pre-embedded anchor bolts, adjusting screws, and at least two support units; The pre-embedded anchor bolts are set in the structural slab at the center of the curved wall. An adjusting screw is fixedly connected to the top of the pre-embedded anchor bolts, and at least two support units are sleeved on the adjusting screw. The support unit includes a fastening sleeve, an upper diagonal brace, and a lower diagonal brace. The inner wall of the fastening sleeve has threads that match the adjusting screw, and the outer contour of the fastening sleeve is a quadrilateral cross-section. The fixed ends of the upper and lower diagonal braces are connected to the outer walls of the fastening sleeve, respectively. The support ends of the upper and lower diagonal braces can be adjusted in the vertical direction, and the support ends are connected to U-shaped clamps for engaging with the main keel of the curved wall.
2. The fixing device for the arc-shaped wall according to claim 1, characterized in that, A pair of lugs are fixedly connected to at least one outer side wall of the fastening sleeve. The lugs are provided with multiple vertically arranged adjustment holes. The fixed ends of the upper and lower diagonal braces are respectively hinged to the adjustment holes of the lugs by fitting pins.
3. The fixing device for the arc-shaped wall according to claim 1, characterized in that, The support ends of the upper and lower diagonal braces are hinged to the U-shaped clamp.
4. The fixing device for the arc-shaped wall according to claim 1, characterized in that, The upper and lower diagonal braces each consist of an inner sleeve, an outer sleeve, and a locking nut. The locking nut is threaded onto the inner sleeve and is close to one end face of the outer sleeve; one end of the inner sleeve is hinged to the fastening sleeve or U-shaped clamp, and the outer wall is threaded; the inner wall of the outer sleeve is threaded to match the inner sleeve thread; the locking nut is used to fix the adjusted length.
5. The fixing device for the arc-shaped wall according to claim 1, characterized in that, A washer is provided between two adjacent fastening sleeves.