A rebar fastener positioning device
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TANGSHAN FENGNAN DISTRICT LIYUAN CEMENT PROD CO LTD
- Filing Date
- 2025-06-17
- Publication Date
- 2026-07-07
Smart Images
Figure CN224468807U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rebar fastener technology, and more specifically, to a rebar fastener positioning device. Background Technology
[0002] Rebar positioning devices are specialized equipment used in construction engineering for the precise fixing and positioning of reinforcing bars. Their core function is to ensure the accurate positioning of the reinforcing bars during construction through mechanical structures, preventing displacement or deformation, thereby improving construction quality and efficiency. Existing rebar positioning devices, such as traditional pre-formed positioning hoops, are widely used in construction, but their fixing methods have significant drawbacks. These devices typically require binding or welding to the main reinforcing bars. However, the high temperature during welding creates a heat-affected zone at the joint, leading to grain coarsening and material embrittlement, reducing the local tensile strength of the reinforcing bars. More importantly, the internal stress generated after the weld cools can easily trigger early cracks, creating structural safety hazards. Furthermore, disassembling welded positioning hoops requires gas cutting, which damages the base material, generates harmful gases, and prevents reuse. Utility Model Content
[0003] To overcome the above-mentioned defects, this utility model provides a rebar fastener positioning device, which solves the technical problem of cumbersome installation of rebar inside a circular base in the prior art.
[0004] According to one aspect, at least one embodiment of the present invention provides a rebar fastener positioning device, including a circular base and a limiting cylinder. A rebar is movably installed inside the circular base. A limiting hole is formed inside the limiting cylinder. A limiting block is movably installed inside the limiting hole and is fixedly connected to one end of the rebar. A limiting cover is movably installed in the limiting hole. A second spring is fixedly installed inside the limiting cylinder. A first limiting post is fixedly installed on the outer surface of the limiting cover. A second limiting post is fixedly installed on the outer surface of the limiting cylinder. A limiting workpiece is movably installed on the outer surface of the second limiting post, and one end of the limiting workpiece is grooved and engaged inside the outer surface of the first limiting post.
[0005] According to another aspect, a support frame is fixedly installed inside the circular base, an installation plate is movably installed inside the support frame, a box is fixedly installed on the outside of the installation plate, a positioning hole is opened inside the installation plate, a positioning block is movably installed inside the positioning hole, a pull rod is fixedly installed at one end of the positioning block, and one end of the pull rod passes through the inside of the box, a first spring is fixedly installed between the positioning block and the box, and a fixed bracket is fixedly installed at the bottom of the installation plate.
[0006] According to another aspect, a push rod is fixedly mounted on the front side of the mounting plate, and the push rod is U-shaped.
[0007] According to another aspect, a reinforcing rib is fixedly installed at the inner corner of the fixed bracket, and the reinforcing rib is triangular in shape.
[0008] According to another aspect, a fixing block is fixedly installed around the outer perimeter of the fixing bracket, and the fixing block has a threaded hole inside.
[0009] According to another aspect, the second limiting post and the limiting workpiece are paired up in pairs, with a total of ten pairs on the outer surface of the limiting cylinder.
[0010] According to another aspect, a limiting post is fixedly installed on the top of the circular base, and the limiting post is arranged in a circumferential array.
[0011] According to another aspect, the outer diameter of the mounting plate is equal to the inner diameter of the support frame, and the support frame has a smooth surface design.
[0012] According to another aspect, the circular base has support columns fixedly installed inside, and the support columns are arranged in a circular array.
[0013] According to another aspect, the second spring has two identical shapes and is made of stainless steel.
[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0015] 1. Compared with traditional devices, this utility model, through the cooperation between the limiting workpiece, the first limiting post, and the second limiting post, facilitates the limiting block at one end of the rebar to be fixed inside the limiting hole, thus significantly improving installation efficiency. The modular limiting structure supports the synchronous insertion of the rebar and the limiting block, and with the pre-tightening force of the second spring, self-positioning is achieved, greatly shortening the installation time of a single rebar. The structural stability is enhanced, with the double spring buffer system and the wedge-shaped buckle of the limiting workpiece forming a three-level locking, providing high shear strength. Dynamic adaptability is optimized, with the spring buffer layer absorbing construction errors and automatically compensating for thermal expansion and contraction deformation. Safety performance is upgraded, with the all-metal limiting structure resistant to high temperatures and the double anti-detachment design of the limiting cover preventing accidental loosening. Maintenance convenience is improved, with the quick disassembly interface supporting one-handed operation, significantly extending the tool replacement cycle. This design constructs a highly reliable connection system through a pure mechanical self-locking principle, making it particularly suitable for engineering scenarios requiring high-frequency disassembly and high-load bearing, such as building formwork reinforcement and heavy equipment bases, resulting in a significant improvement in overall construction efficiency.
[0016] 2. Compared with traditional devices, this utility model, through the cooperation of the positioning block, the first spring, the pull rod, and the positioning hole, facilitates the fixation of the bracket to the bottom of the circular base. The positioning block can be unlocked by operating the pull rod with one hand, and modular installation can be achieved with the push rod, significantly shortening the operation time and greatly improving convenience. During fixing, the first spring reset mechanism ensures a rigid connection between the positioning block and the positioning hole, which has strong resistance to vibration loads and enhances reliability. In terms of safety, the fully mechanical locking structure avoids electrical failures, and the nested design of the circular base and the support frame disperses stress concentration. During maintenance, the modular mounting plate can be quickly disassembled and replaced, and the positioning hole array has reserved expansion interfaces, improving efficiency. In terms of space utilization, the box integrates a spring storage structure, and the inside of the support frame forms an unobstructed installation channel. Attached Figure Description
[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are merely some exemplary embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the exemplary embodiments of this utility model and these drawings without any creative effort.
[0018] Figure 1 This is a frontal three-dimensional appearance structure diagram of one embodiment of the present utility model;
[0019] Figure 2 This is a schematic diagram of the three-dimensional appearance structure of the back side in one embodiment of the present invention;
[0020] Figure 3 This is a partial cross-sectional view of the support block in one embodiment of the present invention;
[0021] Figure 4 for Figure 3 A magnified structural diagram at point A in the embodiment;
[0022] Figure 5 for Figure 3 Enlarged structural diagram at point B in the embodiment;
[0023] Figure 6 This is an exploded view of the mounting plate in one embodiment of the present invention;
[0024] Figure 7 This is a schematic diagram of the cross-sectional structure of the circular base in one embodiment of the present invention;
[0025] Figure 8 for Figure 7 The enlarged structural diagram at point C in the embodiment is shown.
[0026] In the diagram: 1. Circular base; 2. Support frame; 3. Fixed bracket; 4. Fixed block; 5. Threaded hole; 6. Reinforcing rib; 7. Limiting cover; 8. Limiting cylinder; 9. Reinforcing bar; 10. Limiting post; 11. Push rod; 12. Positioning block; 13. Supporting post; 14. Limiting workpiece; 15. First limiting post; 16. Mounting plate; 17. First spring; 18. Pull rod; 19. Box body; 20. Positioning hole; 21. Limiting hole; 22. Second limiting post; 23. Second spring; 24. Limiting block. Detailed Implementation
[0027] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit its scope.
[0028] To keep the drawings concise, only the parts relevant to the utility model are shown schematically in each drawing; these do not represent the actual structure of the product. Furthermore, for ease of understanding, in some drawings, only one of the components with the same structure or function is schematically shown, or only one is labeled. In this document, "a" not only means "only one," but can also mean "more than one," and "several" includes "two" and "more than two."
[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0031] In the description of this embodiment, terms such as "upper," "lower," "left," and "right" are based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of description and simplification of operation, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0032] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0033] like Figures 1-8 As shown, a rebar fastener positioning device includes a circular base 1 and a limiting cylinder 8. A rebar 9 is movably installed inside the circular base 1. A limiting hole 21 is opened inside the limiting cylinder 8. A limiting block 24 is movably installed inside the limiting hole 21 and is fixedly connected to one end of the rebar 9. A limiting cover 7 is movably installed in the limiting hole 21. A second spring 23 is fixedly installed inside the limiting cylinder 8. A first limiting post 15 is fixedly installed on the outer surface of the limiting cover 7. A second limiting post 22 is fixedly installed on the outer surface of the limiting cylinder 8. A limiting workpiece 14 is movably installed on the outer surface of the second limiting post 22, and one end of the limiting workpiece 14 is grooved into the inner surface of the outer surface of the first limiting post 15.
[0034] The worker holds the steel bar 9 and inserts one end of the steel bar 9 into the interior of the circular base 1. Then, the other end of the steel bar 9, the limiting block 24, is inserted into the limiting hole 21. After all the steel bars 9 are inserted into the interior of the circular base 1 and all the limiting blocks 24 are inserted into the limiting hole 21, the worker holds the limiting cover 7 and slowly inserts the limiting cover 7 into the limiting hole 21. The limiting cover 7 compresses the second spring 23 inside the limiting cylinder 8. When the limiting cylinder 8 and the limiting cover 7 are aligned, the worker holds the limiting workpiece 14 on the outer surface of the second limiting post 22. The groove at one end of the limiting workpiece 14 is inserted into the interior of the first limiting post 15. The reaction force of the second spring 23 compresses the limiting cylinder 8, thus completing the limiting and fixing of the steel bar 9 between the limiting cover 7 and the limiting cylinder 8.
[0035] First, insert both ends of the reinforcing bar 9 into the pre-drilled holes in the circular base 1 and the limiting hole 21, respectively. After they are all in place, hold the limiting cover 7 and slowly insert it axially along the limiting hole 21. The tapered structure at its end gradually presses against the inclined surface of the second spring 23 on the inner wall of the limiting cylinder 8. When the outer edge of the limiting cylinder 8 is flush with the end face of the limiting cover 7, quickly insert the limiting workpiece 14 with the V-shaped groove into the positioning groove of the first limiting post 15. At this time, the elastic deformation generated by the compression of the second spring 23 is transmitted through the structure, forming a reverse clamping force at the contact surface between the limiting cylinder 8 and the limiting cover 7. Finally, through mechanical interlocking and deformation coupling, the double limiting and fixing of the reinforcing bar 9 in the axial and circumferential directions is completed, ensuring the stability of the overall assembly structure. Compared with the traditional device, this device, through the cooperation between the limiting workpiece 14, the first limiting post 15 and the second limiting post 22, facilitates the placement of the limiting block 24 at one end of the reinforcing bar 9. The limiting and fixing mechanism is located inside the limiting hole 21, which significantly improves installation efficiency. The modular limiting structure supports the synchronous insertion of the reinforcing bar and the limiting block, and the pre-tightening force of the second spring 23 achieves self-positioning, greatly shortening the installation time of a single reinforcing bar 9. The structural stability is enhanced, with the double spring buffer system and the wedge-shaped buckle of the limiting workpiece forming a three-level locking, providing high shear strength. Dynamic adaptability is optimized, with the spring buffer layer absorbing construction errors and automatically compensating for thermal expansion and contraction deformation. Safety performance is upgraded, with the all-metal limiting structure resistant to high temperatures and the double anti-detachment design of the limiting cover to prevent accidental loosening. Maintenance convenience is improved, with the quick disassembly and assembly interface supporting one-handed operation, significantly extending the tool replacement cycle. This design constructs a highly reliable connection system through a pure mechanical self-locking principle, which is particularly suitable for engineering scenarios such as building formwork reinforcement and heavy equipment bases that require high-frequency disassembly and assembly and high load bearing, greatly improving overall construction efficiency.
[0036] In some examples, a support frame 2 is fixedly installed inside the circular base 1, and an installation plate 16 is movably installed inside the support frame 2. A housing 19 is fixedly installed on the outside of the installation plate 16. A positioning hole 20 is opened inside the installation plate 16, and a positioning block 12 is movably installed inside the positioning hole 20. A pull rod 18 is fixedly installed at one end of the positioning block 12, and one end of the pull rod 18 passes through the inside of the housing 19. A first spring 17 is fixedly installed between the positioning block 12 and the housing 19. A fixing bracket 3 is fixedly installed at the bottom of the installation plate 16.
[0037] After the worker installs the steel bar 9 inside the circular base 1, he holds the pull rod 18 and pulls the positioning block 12 inside the support frame 2 towards one side of the box 19. The positioning block 12 compresses the first spring 17 inside the box 19, causing the positioning block 12 to pass through the support frame 2 and enter the box 19. Then, holding the fixing bracket 3 and the push rod 11, the worker slowly pushes the mounting plate 16 into the support frame 2. When the mounting plate 16 is fully inside the support frame 2, the worker releases the pull rod 18. The first spring 17 compresses the positioning block 12 inside the box 19, causing the positioning block 12 to pass through the support frame 2 and enter the positioning hole 20. The positioning block 12 limits and fixes the mounting plate 16, thus completing the installation of the fixing bracket 3 inside the support frame 2.
[0038] After the initial positioning of the reinforcing bar 9 is completed within the circular base 1, the operator holds the pull rod 18 to drive the positioning block 12 to slide along the inner wall of the support frame 2 towards the box 19. At this time, the inclined surface at the end of the positioning block 12 contacts the wedge-shaped structure of the first spring 17 and generates compression, forcing the positioning block 12 to break through the boundary between the support frame 2 and the box 19. Subsequently, the operator simultaneously holds the fixing bracket 3 and the push rod 11 to push the mounting plate 16 axially along the support frame 2 until it is fully in place. At this time, the pull rod 18 is released, causing the first spring 17 to press the positioning block 12 in the opposite direction under the action of elastic restoring force, pushing it through the inner wall of the support frame 2 and into the limiting groove of the positioning hole 20. Finally, a rigid connection is formed by the mechanical interlock between the positioning block 12 and the mounting plate 16. Compared with the traditional device, this device uses the positioning block 12, The cooperation between the first spring 17, the pull rod 18, and the positioning hole 20 facilitates the fixation of the fixed bracket 3 to the bottom of the circular base 1. The positioning block 12 can be unlocked by operating the pull rod 18 with one hand, and modular installation can be achieved with the push rod 11, which greatly shortens the operation time and significantly improves convenience. When fixed, the reset mechanism of the first spring 17 makes the positioning block 12 rigidly connected to the positioning hole 20, which has strong resistance to vibration load and enhances reliability. In terms of safety, the fully mechanical locking structure avoids electrical failures, and the nested design of the circular base 1 and the support frame 2 disperses stress concentration. During maintenance, the modular mounting plate can be quickly disassembled and replaced, and the positioning hole array has reserved expansion interfaces to improve efficiency. In terms of space utilization, the box integrates a spring storage structure, and the inside of the support frame forms an unobstructed installation channel.
[0039] In some examples, a push rod 11 is fixedly mounted on the front of the mounting plate 16, and the push rod 11 is U-shaped.
[0040] Because the inside of the push rod 11 has a U-shaped shape on the front of the mounting plate 16, and the U-shaped mounting plate 16 is ergonomic, it is easy for the staff to hold the push rod 11 and push the mounting plate 16 into the interior of the support frame 2 quickly.
[0041] In some examples, a reinforcing rib 6 is fixedly installed at the inner corner of the fixed bracket 3, and the reinforcing rib 6 is triangular in shape.
[0042] Since the reinforcing rib 6 is triangular in shape at the included angle of the fixed bracket 3, the triangle has stability, which facilitates the provision of stable support for the fixed bracket 3, ensures the stability of the fixed bracket 3 during use, and improves the efficiency of the fixed bracket 3.
[0043] In some examples, a fixing block 4 is fixedly installed around the outer perimeter of the fixing bracket 3, and the fixing block 4 has a threaded hole 5 inside.
[0044] Since the fixing blocks 4 are fixedly installed on the outer perimeter of the fixing bracket 3, and the fixing blocks 4 have threaded holes 5 inside, by slowly inserting steel nails into the threaded holes 5, the fixing blocks 4 are limited and fixed by the steel nails, and the fixing bracket 3 is limited and fixed by the fixing blocks 4, thus ensuring the stability of the fixing bracket 3 during use.
[0045] In some examples, the second limiting post 22 and the limiting workpiece 14 are paired up, with a total of ten pairs on the outer surface of the limiting cylinder 8.
[0046] Since the second limiting post 22 and the limiting workpiece 14 are paired up, there are ten sets inside the limiting cylinder 8, which facilitates the limiting and fixing of the limiting cover 7 and the limiting cylinder 8 at various positions, ensuring the welding efficiency of the reinforcing bar 9.
[0047] In some examples, the top of the circular base 1 is fixedly mounted with limiting posts 10, and the limiting posts 10 are arranged in a circular array.
[0048] Since the limiting posts 10 are arranged in a circular array on the top of the circular base 1, it is convenient to position the reinforcing bars and ensures the positioning efficiency of the reinforcing bars.
[0049] In some examples, the outer diameter of the mounting plate 16 is equal to the inner diameter of the support frame 2, and the support frame 2 has a smooth surface design.
[0050] Since the outer diameter of the mounting plate 16 is equal to the inner diameter of the support frame 2, and the inside of the support frame 2 has a smooth surface, it is easy to hold the push rod 11 and slowly insert the mounting plate 16 into the inside of the support frame 2, thus ensuring the efficiency of the mounting plate 16.
[0051] The circular base 1 has a support column 13 fixedly installed inside, and the support column 13 is arranged in a circular array.
[0052] Since the support columns 13 are arranged in a circular array inside the circular base 1, they provide stable support for the circular base 1 and reduce the shaking of the circular base 1 during use.
[0053] In some examples, the second spring 23 presents two identical shapes, and the second spring 23 is made of stainless steel.
[0054] Since the second spring 23 has two identical shapes and is made of stainless steel, the stainless steel second spring 23 has strong corrosion resistance and is easy to use for a long time.
[0055] Working principle and usage process of this utility model:
[0056] The worker holds the steel bar 9 and inserts one end of the steel bar 9 into the interior of the circular base 1. Then, the other end of the steel bar 9, the limiting block 24, is inserted into the limiting hole 21. After all the steel bars 9 are inserted into the interior of the circular base 1 and all the limiting blocks 24 are inserted into the limiting hole 21, the worker holds the limiting cover 7 and slowly inserts the limiting cover 7 into the limiting hole 21. The limiting cover 7 compresses the second spring 23 inside the limiting cylinder 8. When the limiting cylinder 8 and the limiting cover 7 are aligned, the worker holds the limiting workpiece 14 on the outer surface of the second limiting post 22. The groove at one end of the limiting workpiece 14 is inserted into the interior of the first limiting post 15. The reaction force of the second spring 23 compresses the limiting cylinder 8, thus completing the limiting and fixing of the steel bar 9 between the limiting cover 7 and the limiting cylinder 8.
[0057] After the worker installs the steel bar 9 inside the circular base 1, he holds the pull rod 18 and pulls the positioning block 12 inside the support frame 2 towards one side of the box 19. The positioning block 12 compresses the first spring 17 inside the box 19, causing the positioning block 12 to pass through the support frame 2 and enter the box 19. Then, holding the fixing bracket 3 and the push rod 11, the worker slowly pushes the mounting plate 16 into the support frame 2. When the mounting plate 16 is fully inside the support frame 2, the worker releases the pull rod 18. The first spring 17 compresses the positioning block 12 inside the box 19, causing the positioning block 12 to pass through the support frame 2 and enter the positioning hole 20. The positioning block 12 limits and fixes the mounting plate 16, thus completing the installation of the fixing bracket 3 inside the support frame 2.
[0058] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0059] 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.
[0060] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A rebar fastener positioning device, comprising a circular base (1) and a limiting cylinder (8), characterized in that: The circular base (1) is movably installed with a steel bar (9). The limiting cylinder (8) has a limiting hole (21) inside. The limiting hole (21) is movably installed with a limiting block (24), and the limiting block (24) is fixedly connected to one end of the steel bar (9). The limiting hole (21) is movably installed with a limiting cover (7). The limiting cylinder (8) is fixedly installed with a second spring (23). The outer surface of the limiting cover (7) is fixedly installed with a first limiting post (15). The outer surface of the limiting cylinder (8) is fixedly installed with a second limiting post (22). The outer surface of the second limiting post (22) is movably installed with a limiting workpiece (14), and one end of the limiting workpiece (14) is grooved into the inner surface of the outer surface of the first limiting post (15).
2. The rebar fastener positioning device according to claim 1, characterized in that: A support frame (2) is fixedly installed inside the circular base (1). An installation plate (16) is movably installed inside the support frame (2). A box (19) is fixedly installed on the outside of the installation plate (16). A positioning hole (20) is opened inside the installation plate (16). A positioning block (12) is movably installed inside the positioning hole (20). A pull rod (18) is fixedly installed at one end of the positioning block (12), and one end of the pull rod (18) passes through the inside of the box (19). A first spring (17) is fixedly installed between the positioning block (12) and the box (19). A fixed bracket (3) is fixedly installed at the bottom of the installation plate (16).
3. The rebar fastener positioning device according to claim 2, characterized in that: A push rod (11) is fixedly installed on the front of the mounting plate (16), and the push rod (11) is U-shaped.
4. A rebar fastener positioning device according to claim 2, characterized in that: A reinforcing rib (6) is fixedly installed at the inner corner of the fixed bracket (3), and the reinforcing rib (6) is triangular in shape.
5. A rebar fastener positioning device according to claim 2, characterized in that: The fixed bracket (3) is fixedly installed with a fixing block (4) around its outer perimeter, and the fixing block (4) has a threaded hole (5) inside.
6. A rebar fastener positioning device according to claim 1, characterized in that: The second limiting post (22) and the limiting workpiece (14) are paired up, with a total of ten pairs on the outer surface of the limiting cylinder (8).
7. A rebar fastener positioning device according to claim 1, characterized in that: The top of the circular base (1) is fixedly installed with limiting posts (10), and the limiting posts (10) are arranged in a circular array.
8. A rebar fastener positioning device according to claim 2, characterized in that: The outer diameter of the mounting plate (16) is equal to the inner diameter of the support frame (2), and the support frame (2) has a smooth surface design.
9. A rebar fastener positioning device according to claim 1, characterized in that: The circular base (1) has a support column (13) fixedly installed inside, and the support column (13) is arranged in a circular array.
10. A rebar fastener positioning device according to claim 1, characterized in that: The second spring (23) has two identical shapes and is made of stainless steel.