Adjustable steel bar spacer

By designing components such as support columns, support frames, and drive motors, the problem of inconvenient adjustment of the support spacing of the rebar spacers was solved, achieving stable clamping and convenient adjustment of the rebar spacers, thus improving construction efficiency and stability.

CN224173755UActive Publication Date: 2026-04-28XINJIANG CHANGJI CONSTR GRP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINJIANG CHANGJI CONSTR GRP CO LTD
Filing Date
2025-05-08
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing rebar spacers are not easy to adjust the support spacing during use, making it difficult to adjust the rebar spacing according to actual construction needs, which affects the versatility and efficiency of use.

Method used

The system employs components such as support columns, support frames, drive motors, drive rods, and limit rods. The support spacing is adjusted in real time through motor drive and threaded connection, and the steel bars are stably clamped and limited using dampers and guide blocks.

Benefits of technology

It enables convenient adjustment of the rebar spacers, improves the stability and efficiency of construction, ensures that the rebars are not easily displaced during the pouring process, and enhances the versatility and separation effect of the device.

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Abstract

The utility model discloses an adjustable steel bar spacer which comprises a supporting column and a supporting frame installed on the outer side of the supporting column, a connecting block is arranged in the supporting frame, and the outer side of the connecting block is connected with a supporting plate. The first limiting rod is installed at the lower end of the supporting column, the lower side of the first limiting rod is connected with a floor, a driving motor is installed on the upper side of the supporting frame, and the lower side of the driving motor is connected with a first driving rod. According to the adjustable steel bar spacer, the supporting distance of the device can be conveniently adjusted in real time in the using process, so that the device can easily adjust the spacing distance of steel bars according to actual construction requirements, the use universality of the device is prevented from being affected, and the spacing efficiency of the device is improved; and meanwhile, in the using process of the device, the steel bars can be conveniently and stably clamped and limited, so that the steel bars are not prone to shifting and sliding in the pouring machining process, the using stability of the device is improved, and the better using effect is achieved.
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Description

Technical Field

[0001] This utility model relates to the field of rebar spacing technology, specifically to an adjustable rebar spacer. Background Technology

[0002] Reinforcing bar spacers are an important measure used in reinforced concrete structure construction to control the thickness of the concrete cover and the spacing of the reinforcing bars. Also known as "reinforcing bar cover spacers," they are primarily used to ensure the accurate positioning of the reinforcing bars in the concrete, thereby guaranteeing the durability and safety of the structure.

[0003] Authorized publication number CN212096864U discloses a rebar spacer for PC walls, relating to the field of building construction technology. It includes a long, cylindrical rod with a support at one end, the bottom surface of which abuts against the bottom surface of a mold used for casting the first side of the PC wall. The other end of the rod has a pointed insertion end, the tip of which abuts against the bottom surface of a mold used for casting the second side of the PC wall. During the casting of the first side of the PC wall, the support maintains a certain distance between the rebar and the bottom surface of the mold, and the support, along with the lower end of the rebar truss, is cast into the first side of the wall. The insertion end and the other end of the rebar truss are then inserted into the concrete of the second side of the PC wall, with the tip of the insertion end abutting against the bottom surface of the mold for the second side of the wall. This ensures that the length of the rod between the support and the insertion end is sufficient to determine the distance between the first and second sides of the wall. This invention solves the problem of rebar separation and positioning control for both sides of the PC wall during production.

[0004] However, the spacers of the steel bars make it difficult to adjust the support spacing of the device during use, which makes it difficult to adjust the spacing of the steel bars according to the actual construction needs. This affects the versatility of the device and reduces the spacing efficiency of the device.

[0005] Therefore, in order to address the above problems, there is an urgent need to innovate the design based on the existing steel reinforcement spacers. Utility Model Content

[0006] The purpose of this invention is to provide an adjustable rebar spacer to solve the problem mentioned in the background art that it is inconvenient to adjust the support spacing of the device during use, which makes it difficult for the device to adjust the rebar spacing according to actual construction needs, thus affecting the versatility of the device and reducing the spacing efficiency of the device.

[0007] To achieve the above objectives, the present invention provides the following technical solution: an adjustable rebar spacer, comprising: a support column, and a support frame installed on the outside of the support column, wherein a connecting block is provided inside the support frame, and a support plate is connected to the outside of the connecting block;

[0008] Also includes:

[0009] A first limiting rod is installed at the lower end of the support column, and the lower side of the first limiting rod is connected to the floor. A drive motor is installed on the upper side of the support frame, and a first drive rod is connected to the lower side of the drive motor. A first guide strip is provided on the outer side of the first drive rod.

[0010] In one possible implementation, the first drive rod is threadedly connected to the connecting block, and the connecting block is slidably connected to the first guide bar.

[0011] In one possible implementation, the support frame is set at an equal angle on the outside of the support column, and the first limiting rod is threadedly connected to both the support column and the floor.

[0012] In one possible implementation, a support block is provided on the upper side of the support plate, and a second guide bar is connected to the outer side of the support block. A second drive rod is connected to the lower side of the support block, and a second limiting rod is connected to the outer side of the second drive rod.

[0013] The support block and the second guide strip are slidably connected, and the second guide strip is symmetrically arranged about the central axis of the support block.

[0014] In one possible implementation, the second drive rod is threadedly connected to the support block, and the second drive rod is rotatably connected to the support plate.

[0015] In one possible implementation, the second limiting rod is engaged with both the second driving rod and the support plate.

[0016] In one possible implementation, a clamping block is installed inside the support block, and a damper is connected to the outside of the clamping block. A guide block is connected to the middle of the clamping block, and an operating handle is installed on the upper side of the clamping block. An anti-slip pad is provided on the inner side of the clamping block.

[0017] The clamping block and the guide block are slidably arranged relative to each other, and the longitudinal section of the guide block is a "T" shaped structure. The guide block is symmetrically arranged about the central axis of the clamping block.

[0018] Compared with the prior art, the beneficial effects of this utility model are: the adjustable rebar spacer allows for real-time adjustment of the support spacing during use, making it easy to adjust the rebar spacing according to actual construction needs, thus avoiding affecting the versatility of the device and improving its spacing efficiency. Simultaneously, it facilitates stable clamping and limiting of the rebars during use, preventing them from shifting or slipping during pouring and processing, thereby improving the device's stability and resulting in better performance. Specifically, as shown below:

[0019] 1. The damper, in conjunction with the guide block, pushes the clamping block and the anti-slip pad to the inward reset displacement, so that the anti-slip pad, in conjunction with the support block, clamps and limits the steel bar body placed inside, preventing the steel bar body from shifting and sliding during the pouring process, thereby improving the stability and effectiveness of the device.

[0020] 2. The second drive rod, in conjunction with the second guide bar, drives the support block to slide within the support plate, thereby allowing the support block to slide and adjust the internally limited steel bar body. This makes it easy for the device to adjust the support distance between the steel bar body and the wall according to actual usage needs, and facilitates the position adjustment of the steel bar body by construction personnel according to actual construction needs, thus improving the efficiency of the device.

[0021] 3. The drive motor, in conjunction with the first guide bar, moves the connecting block and the support plate up and down on the outside of the floor, allowing the support plate to move the support block and the steel bar body up and down. This allows the device to effectively adjust the support height of the support plate and the support block on the steel bar body according to different usage requirements, making it easier to adjust the support interval between different steel bars, improving the versatility of the device and enhancing its separation effect. Attached Figure Description

[0022] Figure 1 This is a frontal cross-sectional view of the present invention.

[0023] Figure 2 This is a top view sectional structural diagram of the present invention;

[0024] Figure 3 This utility model Figure 1 Enlarged structural diagram at point A in the middle;

[0025] Figure 4 This is a schematic cross-sectional view of the connection between the support plate and the second drive rod of this utility model.

[0026] Figure 5 This is a schematic cross-sectional view of the connection between the clamping block and the guide block of this utility model.

[0027] In the diagram: 1. Floor; 2. Support column; 3. First limiting rod; 4. Carrying handle; 5. Support frame; 6. Drive motor; 7. First drive rod; 8. Connecting block; 9. First guide bar; 10. Support plate; 11. Support block; 12. Clamping block; 13. Damper; 14. Guide block; 15. Operating handle; 16. Anti-slip pad; 17. Rebar body; 18. Second drive rod; 19. Second limiting rod; 20. Second guide bar. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0029] Please see Figure 1-5 This utility model provides a technical solution: an adjustable rebar spacer, including a floor 1, a support column 2, a first limiting rod 3, a carrying handle 4, a support frame 5, a drive motor 6, a first drive rod 7, a connecting block 8, a first guide bar 9, a support plate 10, a support block 11, a clamping block 12, a damper 13, a guide block 14, an operating handle 15, an anti-slip pad 16, a rebar body 17, a second drive rod 18, a second limiting rod 19, and a second guide bar 20.

[0030] Specifically, such as Figure 1 , Figure 3 and Figure 5 As shown, before using the device, the support column 2 and the carrying handle 4 are placed in the designated positions. Simultaneously, the first limiting rod 3 located on the lower side of the support column 2 is rotated. Due to the threaded connection between the first limiting rod 3 and the support column 2 and the floor 1, the downward-rotating first limiting rod 3 limits the support column 2 to the upper side of the floor 1. At this time, the operating handle 15 located on the upper side of the clamping block 12 is pulled outwards. This causes the operating handle 15 to move the clamping block 12 connected to its lower side outwards, compressing the damper 13. Due to the sliding connection between the guide block 14 and the clamping block 12, the clamping block 12 is subjected to the force of the guide block 14 during its outward displacement and compression of the damper 13. The guide limit is then set. At this time, the clamping block 12 drives the second drive rod 18 installed on its inner side to move outward. At the same time, the steel bar body 17 that needs to be spaced is installed in the middle of the support block 11. By releasing the pull on the operating handle 15, the damper 13 that is squeezed on the outer side of the clamping block 12 rebounds and pushes the clamping block 12 and the anti-slip pad 16 connected on its inner side to move inward along the guide block 14. At this time, the anti-slip pad 16 that resets inward cooperates with the support block 11 to clamp and limit the steel bar body 17 placed in the middle, so as to prevent the steel bar body 17 from shifting and sliding during the pouring process, thereby improving the stability of the device and the effectiveness of the device.

[0031] Specifically, such as Figure 1 , Figure 2 and Figure 4As shown, after completing the limiting work for the steel bar body 17, the second limiting rod 19 connected to the outside of the second drive rod 18 is removed upwards, causing the second limiting rod 19 to relax its limiting effect on the second drive rod 18. At this time, the second drive rod 18 inside the rotating support plate 10 is rotated. Due to the threaded connection between the second drive rod 18 and the support block 11, the rotating second drive rod 18 can effectively push the support block 11 to slide within the support plate 10. Due to the sliding connection between the support block 11 and the second guide strip 20, the support block 11 is guided and limited by the second guide strip 20 during the sliding displacement, improving the movement stability of the support block 11. At this time, the support block 11 drives the steel bar body 17, which is limited inside, to slide and adjust on the upper side of the support plate 10. This allows the device to easily adjust the support distance between the steel bar body 17 and the wall according to actual usage requirements, facilitating the construction personnel to adjust the position of the steel bar body 17 according to actual construction needs and improving the device's usability. Efficiency; Simultaneously, the drive motor 6 installed on the upper side of the support frame 5 is activated, causing the drive motor 6 to drive the first drive rod 7 connected to its lower side to rotate inside the support frame 5. Due to the threaded connection between the first drive rod 7 and the connecting block 8, the first drive rod 7 rotating inside the support frame 5 can effectively drive the connecting block 8 and the support plate 10 to slide up and down on the outside of the floor 1. At this time, due to the sliding connection structure between the first guide strip 9 and the connecting block 8, the connecting block 8 and the support plate 10 are guided and limited by the first guide strip 9 during the up and down sliding process, avoiding positional deviation of the connecting block 8 and the support plate 10 during the up and down displacement adjustment process, improving the motion stability of the connecting block 8 and the support plate 10. At the same time, the real-time driving capability generated by the first drive rod 7 and the drive motor 6 allows the device to effectively adjust the support height of the support plate 10 and the support block 11 on the steel bar body 17 according to different usage requirements, improving the versatility of the device, reducing the limitations of the device's use, and improving the device's separation effect.

[0032] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0033] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. Adjustable rebar spacers, including: Support column (2), and support frame (5) installed on the outside of support column (2), the support frame (5) is provided with a connecting block (8) inside, and a support plate (10) is connected to the outside of the connecting block (8). Its characteristic is that it further includes: The first limiting rod (3) is installed at the lower end of the support column (2), and the lower side of the first limiting rod (3) is connected to the floor (1). The upper side of the support frame (5) is equipped with a drive motor (6), and the lower side of the drive motor (6) is connected to a first drive rod (7). The outer side of the first drive rod (7) is provided with a first guide strip (9).

2. The adjustable reinforcing bar spacer according to claim 1, characterized in that: The first drive rod (7) is threadedly connected to the connecting block (8), and the connecting block (8) is slidably connected to the first guide bar (9).

3. The adjustable reinforcing bar spacer according to claim 1, characterized in that: The support frame (5) is set at an equal angle on the outside of the support column (2), and the first limiting rod (3) is threadedly connected to both the support column (2) and the floor (1).

4. The adjustable reinforcing bar spacer according to claim 1, characterized in that: The upper side of the support plate (10) is provided with a support block (11), and the outer side of the support block (11) is connected with a second guide bar (20), and the lower side of the support block (11) is connected with a second drive rod (18), and the outer side of the second drive rod (18) is connected with a second limit rod (19). The support block (11) is slidably connected to the second guide bar (20), and the second guide bar (20) is symmetrically arranged about the central axis of the support block (11).

5. The adjustable reinforcing bar spacer according to claim 4, characterized in that: The second drive rod (18) is threadedly connected to the support block (11), and the second drive rod (18) is rotatably connected to the support plate (10).

6. The adjustable reinforcing bar spacer according to claim 4, characterized in that: The second limiting rod (19) is engaged with the second driving rod (18) and the support plate (10).

7. The adjustable reinforcing bar spacer according to claim 4, characterized in that: The support block (11) has a clamping block (12) installed inside, and a damper (13) is connected to the outside of the clamping block (12). A guide block (14) is connected to the middle of the clamping block (12), and an operating handle (15) is installed on the upper side of the clamping block (12). An anti-slip pad (16) is provided on the inner side of the clamping block (12). The clamping block (12) and the guide block (14) are slidably arranged relative to each other, and the longitudinal section of the guide block (14) is a "T" shaped structure, and the guide block (14) is symmetrically arranged about the central axis of the clamping block (12).

Citation Information

Patent Citations

  • Steel bar spacer applied to PC wall

    CN212096864U