Precise positioning and mounting clamp for precast concrete member
By designing a precision positioning and installation clamp for precast concrete components, and using an adjusting turntable and a backstop mechanism to fix the reinforcing bars, the problem of reinforcing bar misalignment was solved, the stability and construction efficiency of concrete pouring were improved, and the sealing of the formwork was enhanced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG WANHONG MUNICIPAL GARDEN CO LTD
- Filing Date
- 2025-05-10
- Publication Date
- 2026-04-28
AI Technical Summary
In existing technologies, reinforcing bars are prone to shifting during concrete pouring, leading to unstable quality of precast components, increased splicing difficulty, and reduced construction efficiency.
Design a precision positioning and installation fixture for precast concrete components, comprising a template, an adjusting turntable, a clamping rod, and a backstop mechanism. The adjusting turntable drives the clamping rod to fix the reinforcing bars, and the backstop mechanism prevents loosening. Combined with a sealing plate, it prevents concrete leakage.
This method achieves stable fixing of reinforcing bars, improves the stability of concrete pouring, reduces the risk of reinforcing bar displacement, enhances the quality and construction efficiency of precast components, and strengthens the sealing performance of the formwork.
Smart Images

Figure CN224170112U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of precast concrete component production technology, and in particular to a precision positioning and installation clamp for precast concrete components. Background Technology
[0002] Precast concrete components are concrete structures that are prefabricated in a factory or on-site and then transported to the construction site for installation. Compared with traditional cast-in-place concrete components, precast concrete components have many advantages in terms of quality control, construction progress, energy conservation and environmental protection. They are widely used in industries such as bridge engineering and drainage engineering. During the production of precast concrete components, the reinforcing bars need to be accurately positioned to ensure that the stress performance of the components meets the design requirements.
[0003] After searching, it was found that the utility model application with application number CN202022125908.9 provides a steel bar positioning structure for precast reinforced concrete components for architectural design. It uses the elastic force of a spring to drive a clamping plate to fix steel bars of different specifications. However, during the concrete pouring process, the concrete will cause the steel bars to vibrate, causing the position of the steel bars to shift. This not only easily affects the quality of the precast components, but also increases the difficulty of splicing the precast components and reduces construction efficiency. Utility Model Content
[0004] The purpose of this utility model is to provide a precision positioning and installation clamp for precast concrete components, which facilitates the fixing of steel bars of different specifications, improves the stability of steel bars during concrete pouring, avoids steel bar displacement, improves the quality of precast components, reduces the difficulty of splicing precast components, and improves work efficiency.
[0005] To achieve the above objectives, a precision positioning and installation fixture for precast concrete components is provided, comprising: a template and an anti-reverse mechanism; an adjusting turntable is rotatably connected to the inner surface of the template; an adjusting groove is provided on the adjusting turntable; an adjusting block is slidably connected to the inner surface of the adjusting groove; a clamping rod is fixedly connected to the rear surface of the adjusting block; a clamping plate is fixedly connected to the end of the clamping rod away from the adjusting block; anti-reverse teeth are provided on the outer surface of the adjusting turntable; and a second adjusting rod is fixedly connected to the front surface of the adjusting turntable.
[0006] The anti-reverse mechanism includes a fixed shaft, an anti-reverse plate, a first spring, and a first adjusting rod. The two ends of the fixed shaft are fixedly connected to the template. The outer surface of the fixed shaft is rotatably connected to the anti-reverse plate. The outer wall of the anti-reverse plate is fixedly connected to the first spring. The end of the first spring away from the anti-reverse plate is fixedly connected to the template. The front surface of the anti-reverse plate is fixedly connected to the first adjusting rod. A sealing plate is movably provided on the rear surface of the template. A connecting rod is fixedly connected to the front surface of the sealing plate.
[0007] According to the aforementioned precision positioning and installation clamp for precast concrete components, a third spring is fixedly connected to the front end of the connecting rod, and a locking block is fixedly connected to the end of the third spring away from the connecting rod. A connecting seat is fixedly connected to the front surface of the template, and a second spring is fixedly connected to the top of the connecting seat. A pressing block is fixedly connected to the end of the second spring away from the connecting seat. A connecting rod is fixedly connected to the side of the pressing block connected to the second spring, and a push plate is fixedly connected to the end of the connecting rod away from the pressing block. This facilitates the fixing and releasing of the connecting rod, thereby making it convenient to replace the sealing plate.
[0008] According to the aforementioned precision positioning and installation clamp for precast concrete components, the outer surface of the clamping block is slidably connected to the connecting rod, and the outer surface of the clamping block engages with the connecting seat, facilitating the movement of the clamping block. The connection between the clamping block and the connecting seat enables the fixing and release of the connecting rod.
[0009] According to the aforementioned precision positioning and installation fixture for precast concrete components, the outer surface of the push plate is slidably connected to the connecting seat, and the outer surface of the connecting rod is slidably connected to the connecting seat.
[0010] According to the aforementioned precast concrete component precise positioning and installation clamp, the outer surface of the connecting rod slides against the template.
[0011] According to the aforementioned precast concrete component precise positioning and installation clamp, the outer surface of the second adjusting rod is slidably connected to the template, and the outer surface of the clamping rod is slidably connected to the template.
[0012] According to the aforementioned precision positioning and installation fixture for precast concrete components, the outer surface of the first adjusting rod is slidably connected to the template, and the outer surface of the anti-reverse tooth engages with the anti-reverse plate, which facilitates the restriction of the rotation of the adjusting turntable and prevents the adjusting turntable from flipping over and causing the clamping plate to loosen.
[0013] The above-mentioned solution has the following beneficial effects:
[0014] 1. By rotating the adjusting plate, the clamping rod can be moved to fix the steel bars through the clamping plate. The anti-reverse mechanism prevents the adjusting plate from loosening, which facilitates the fixing of steel bars of different specifications. At the same time, it can improve the stability of steel bars during concrete pouring, avoid steel bar displacement, improve the quality of precast components, reduce the difficulty of splicing precast components, and improve work efficiency.
[0015] 2. By setting a sealing plate, the sealing performance of the template can be improved, the leakage of concrete during pouring can be reduced, the internal structure of the template can be protected, and the smoothness of the outer surface of the precast components can also be improved.
[0016] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0017] The present invention will be further described below with reference to the accompanying drawings and embodiments;
[0018] Figure 1 This is an overall structural diagram of a precision positioning and installation clamp for precast concrete components according to this utility model;
[0019] Figure 2 This is a cross-sectional view of the overall structure of a precision positioning and installation clamp for precast concrete components according to this utility model.
[0020] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0021] Figure 4 This is a cross-sectional view of the internal structure of a precision positioning and installation clamp for precast concrete components according to this utility model.
[0022] Figure 5 for Figure 4 Enlarged view of point B in the middle;
[0023] Figure 6 This is an exploded view of the internal structure of a precision positioning and installation clamp for precast concrete components according to this utility model.
[0024] Legend:
[0025] 1. Template; 2. Adjusting turntable; 3. Adjusting groove; 4. Adjusting block; 5. Clamping rod; 6. Clamping plate; 7. Anti-reverse gear; 8. Fixed shaft; 9. Anti-reverse plate; 10. First spring; 11. First adjusting rod; 12. Sealing plate; 13. Connecting rod; 14. Second adjusting rod; 15. Locking block; 16. Connecting seat; 17. Second spring; 18. Pressing block; 19. Connecting rod; 20. Push plate; 21. Third spring. Detailed Implementation
[0026] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.
[0027] Reference Figure 1-6This utility model provides a precision positioning and installation fixture for precast concrete components, comprising: a template 1 and a backstop mechanism. An adjusting turntable 2 is rotatably connected to the inner surface of the template 1. The adjusting turntable 2 is provided with an adjusting groove 3, which is spiral-shaped to facilitate the uniform and synchronous movement of the adjusting block 4 when the adjusting turntable 2 rotates. The adjusting block 4 is slidably connected to the inner surface of the adjusting groove 3. A clamping rod 5 is fixedly connected to the rear surface of the adjusting block 4. The outer surface of the clamping rod 5 is slidably connected to the template 1. A guide groove adapted to the clamping rod 5 is provided inside the template 1 to facilitate guiding and restricting the movement of the clamping rod 5. A clamping plate 6 is fixedly connected to the end of the clamping rod 5 away from the adjusting block 4. A backstop tooth 7 is provided on the outer surface of the adjusting turntable 2. A second adjusting rod 14 is fixedly connected to the front surface of the adjusting turntable 2. The outer surface of the second adjusting rod 14 is slidably connected to the template 1.
[0028] The anti-reverse mechanism includes a fixed shaft 8, an anti-reverse plate 9, a first spring 10, and a first adjusting rod 11. The outer surface of the first adjusting rod 11 is slidably connected to the template 1. Both ends of the fixed shaft 8 are fixedly connected to the template 1. The outer surface of the fixed shaft 8 is rotatably connected to the anti-reverse plate 9. The outer surface of the anti-reverse tooth 7 engages with the anti-reverse plate 9. The outer wall of the anti-reverse plate 9 is fixedly connected to the first spring 10. The end of the first spring 10 away from the anti-reverse plate 9 is fixedly connected to the template 1. The front surface of the anti-reverse plate 9 is fixedly connected to the first adjusting rod 11. A sealing plate 12 is movably provided on the rear surface of the template 1. The through hole on the sealing plate 12 is adapted to the specifications of the reinforcing bar and is slightly larger than the size of the reinforcing bar to facilitate the passage of the reinforcing bar while reducing concrete leakage. A connecting rod 13 is fixedly connected to the front surface of the sealing plate 12. The outer surface of the connecting rod 13 slides with the template 1.
[0029] A third spring 21 is fixedly connected to the front end of the connecting rod 13. A locking block 15 is fixedly connected to the end of the third spring 21 away from the connecting rod 13. The outer surface of the locking block 15 engages with the connecting seat 16. The outer surface of the locking block 15 is slidably connected to the connecting rod 13. A connecting seat 16 is fixedly connected to the front surface of the template 1. A second spring 17 is fixedly connected to the top of the connecting seat 16. A pressing block 18 is fixedly connected to the end of the second spring 17 away from the connecting seat 16. A connecting rod 19 is fixedly connected to the side of the pressing block 18 connected to the second spring 17. The outer surface of the connecting rod 19 is slidably connected to the connecting seat 16. A push plate 20 is fixedly connected to the end of the connecting rod 19 away from the pressing block 18. The outer surface of the push plate 20 is slidably connected to the connecting seat 16.
[0030] Working principle: The sealing plate 12, which is compatible with the specifications of the reinforcing bars, is connected to the template 1 via the connecting rod 13. As the connecting rod 13 passes through the template 1, the template 1 pushes the locking block 15 into the connecting rod 13, compressing the third spring 21. When the sealing plate 12 is completely in contact with the template 1, the locking block 15 is ejected and locked into the connecting seat 16 under the action of the third spring 21, thus fixing the connecting rod 13 and fixing the sealing plate 12. The second adjusting rod 14 drives the adjusting turntable 2 to rotate, thereby driving the adjusting block 4 to move along the adjusting groove 3, which in turn drives the clamping rod 5 to move and clamp the reinforcing bars through the clamping plate 6. (The last sentence appears to be incomplete and possibly refers to a process where the plate needs to be removed.) When template 1 is in use, the first adjusting rod 11 drives the anti-reverse plate 9 and the fixed shaft 8 to rotate around the axis, causing the anti-reverse plate 9 to separate from the anti-reverse tooth 7 and release the fixation on the adjusting turntable 2. The second adjusting rod 14 rotates the adjusting turntable 2 in the opposite direction, thereby driving the adjusting groove 3 to move, which in turn drives the clamping rod 5 to move, causing the clamping plate 6 to move outward and release the fixation on the reinforcing bar, thus facilitating the removal of template 1. When the sealing plate 12 needs to be replaced, pressing the pressing block 18 drives the push plate 20 to move through the connecting rod 19, pushing the locking block 15 out of the connecting seat 16 and separating it from the connecting seat 16, thereby releasing the fixation on the connecting rod 13, and thus enabling the sealing plate 12 to be removed and replaced.
[0031] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.
Claims
1. A precision positioning and installation clamp for precast concrete components, comprising: The template (1) and the anti-reverse mechanism are characterized in that an adjusting turntable (2) is rotatably connected to the inner surface of the template (1), an adjusting groove (3) is provided on the adjusting turntable (2), an adjusting block (4) is slidably connected to the inner surface of the adjusting groove (3), a clamping rod (5) is fixedly connected to the rear surface of the adjusting block (4), a clamping plate (6) is fixedly connected to the end of the clamping rod (5) away from the adjusting block (4), an anti-reverse tooth (7) is provided on the outer surface of the adjusting turntable (2), and a second adjusting rod (14) is fixedly connected to the front surface of the adjusting turntable (2). The anti-reverse mechanism includes a fixed shaft (8), an anti-reverse plate (9), a first spring (10), and a first adjusting rod (11). The two ends of the fixed shaft (8) are fixedly connected to the template (1). The outer surface of the fixed shaft (8) is rotatably connected to the anti-reverse plate (9). The outer side wall of the anti-reverse plate (9) is fixedly connected to the first spring (10). The end of the first spring (10) away from the anti-reverse plate (9) is fixedly connected to the template (1). The front surface of the anti-reverse plate (9) is fixedly connected to the first adjusting rod (11). A sealing plate (12) is movably provided on the rear surface of the template (1). A connecting rod (13) is fixedly connected to the front surface of the sealing plate (12).
2. The precision positioning and installation clamp for precast concrete components according to claim 1, characterized in that, A third spring (21) is fixedly connected inside the front end of the connecting rod (13). A locking block (15) is fixedly connected to the end of the third spring (21) away from the connecting rod (13). A connecting seat (16) is fixedly connected to the front surface of the template (1). A second spring (17) is fixedly connected to the top of the connecting seat (16). A pressing block (18) is fixedly connected to the end of the second spring (17) away from the connecting seat (16). A connecting rod (19) is fixedly connected to the side of the pressing block (18) connected to the second spring (17). A push plate (20) is fixedly connected to the end of the connecting rod (19) away from the pressing block (18).
3. The precision positioning and installation clamp for precast concrete components according to claim 2, characterized in that, The outer surface of the locking block (15) is slidably connected to the connecting rod (13), and the outer surface of the locking block (15) is engaged with the connecting seat (16).
4. The precision positioning and installation clamp for precast concrete components according to claim 2, characterized in that, The outer surface of the push plate (20) is slidably connected to the connecting seat (16), and the outer surface of the connecting rod (19) is slidably connected to the connecting seat (16).
5. A precision positioning and installation clamp for precast concrete components according to claim 1, characterized in that, The outer surface of the connecting rod (13) slides against the template (1).
6. The precision positioning and installation clamp for precast concrete components according to claim 1, characterized in that, The outer surface of the second adjusting rod (14) is slidably connected to the template (1), and the outer surface of the clamping rod (5) is slidably connected to the template (1).
7. The precision positioning and installation clamp for precast concrete components according to claim 1, characterized in that, The outer surface of the first adjusting rod (11) is slidably connected to the template (1), and the outer surface of the anti-reverse tooth (7) is engaged with the anti-reverse plate (9).
Citation Information
Patent Citations
Reinforcing steel bar positioning structure of reinforced concrete prefabricated part for building design
CN213290780U