Reinforcing steel bar spacing detection device for highway bridge construction

By designing a rebar spacing detection device that includes a scale, a lead screw driven by a micro motor, and an indicator tag, the problem of difficult rebar spacing measurement in the prior art is solved, and fast and accurate rebar spacing measurement is achieved.

CN223976606UActive Publication Date: 2026-03-06SHANDONG LUQIAO GROUP CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

In existing technologies, when using a measuring tape to measure the spacing of steel bars in columns, workers need to manually locate the edge of each steel bar, making the measurement difficult and inaccurate.

Method used

A device for detecting the spacing of reinforcing bars in highway bridge construction was designed, comprising a scale, a lead screw driven by a micro motor, a nut moving block, a movable marker, and an indicator marker. The device enables rapid positioning and spacing measurement of reinforcing bars through a reinforcing bar locking component and a limiting mechanism.

Benefits of technology

It enables rapid and accurate measurement of rebar spacing, reducing the complexity of manual operation and measurement errors.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a highway bridge construction steel bar spacing detection device which comprises a ruler body, the top of the ruler body is provided with a graduated scale, one side of the bottom of the ruler body is provided with an adjusting groove, the inside of the adjusting groove is rotatably connected with a screw rod, one end of the screw rod is connected with a micro motor installed in the inner wall of the ruler body, and the other end of the screw rod is connected with a screw rod. The lead screw is sleeved with a nut moving block in a threaded mode, the nut moving block is connected into the adjusting groove in a sliding mode, and a movable marker post is fixed to the bottom of the nut moving block. Compared with the prior art, the utility model has the following beneficial effects: through the design of the limiting mechanism, when the ruler is adapted to steel bars with different sizes, steel bar locking pieces with clamping grooves with different sizes can be assembled on the ruler body, that is, the movable rod is pulled to rotate to drive the sliding sleeve and the clamping rod to move, the clamping rod moves to be separated from the clamping groove on the butt joint block, and at the moment, the steel bar locking pieces with clamping grooves with different sizes can be assembled on the ruler body. When the steel bar locking piece is assembled, the steel bar locking piece can be taken down, and then a new steel bar locking piece is assembled.
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Description

Technical Field

[0001] This utility model is a device for detecting the spacing of reinforcing bars in highway bridge construction, belonging to the field of bridge construction. Background Technology

[0002] Currently, when bridges are being constructed, steel reinforcement columns are installed and poured on-site. However, many steel hoops are added to the surface of the steel reinforcement columns to ensure the stability of the entire column. However, the distance between each layer of steel hoops is subject to a standard. Therefore, construction workers need to use a tape measure to measure before construction. However, when using a tape measure, workers need to accurately locate the edge of each steel reinforcement before they can observe it. Because the tape measure is relatively soft, it is not easy to use and measure. Utility Model Content

[0003] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a device for detecting the spacing of steel bars in highway bridge construction.

[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:

[0005] A device for detecting the spacing of reinforcing bars in highway bridge construction includes a ruler body. A scale is provided at the top of the ruler body, and an adjustment groove is formed on one side of the bottom of the ruler body. A lead screw is rotatably connected inside the adjustment groove. One end of the lead screw is connected to a miniature motor installed on the inner wall of the ruler body. A nut moving block is threaded onto the lead screw and slidably connected within the adjustment groove. A movable marker is fixed at the bottom of the nut moving block. Indicator markers that cooperate with the scale are provided on both sides of the movable marker. A reinforcing bar locking component is provided on the other side of the bottom of the ruler body, and a limiting mechanism that cooperates with the reinforcing bar locking component is provided on the side wall of the ruler body.

[0006] Furthermore, the rebar locking component includes a fixing rod and a clamping block, the fixing rod and the clamping block are hinged together, and the fixing rod and the clamping block are provided with clamping grooves that cooperate with the rebar on opposite sides. A connecting block is fixed to the top of the fixing rod, and a snap-fit ​​groove is opened on one side of the outer surface of the connecting block.

[0007] Furthermore, the limiting mechanism includes a docking groove formed on one side of the bottom of the ruler body, and a sliding groove and a spring groove are respectively formed on the bottom of the outer surface of one side of the ruler body, and the sliding groove is connected and communicates with the docking groove.

[0008] Furthermore, the limiting mechanism also includes a movable rod movably connected to one side of the outer surface of the ruler and located below the micro motor. A sliding sleeve is fitted on the movable rod, and the sliding sleeve is movably connected to the end of the snap-fit ​​rod. The snap-fit ​​rod is slidably connected in the sliding groove, and the end of the snap-fit ​​rod passes through the mating groove and is inserted into the snap-fit ​​groove.

[0009] Furthermore, a sliding groove is provided on the movable rod, and a shaft is slidably connected in the sliding groove. The end of the shaft is movably connected to the reset rod. The reset rod has a T-shaped structure, and the end of the reset rod is slidably connected in the spring groove. A reset spring is sleeved on the outer surface of the reset rod between the inner wall of the spring groove and the inner wall of the reset rod.

[0010] Furthermore, the nut moving block has a threaded hole in the middle that mates with the lead screw, and the nut moving block, the movable rod, and the indicator tag are an integral structure.

[0011] Furthermore, the end of the indicator tag is provided with an antenna, which overlaps the scale.

[0012] The beneficial effects of this utility model are:

[0013] The design of the steel bar locking device allows the steel bar to be locked in place by fixing the marker and clamping groove on the clamping block, thereby connecting the steel bar to the ruler body. The initial positioning of the steel bar can then be achieved by the contact between the ruler body and the two steel bars.

[0014] By designing a limiting mechanism, when adapting to steel bars of different sizes, steel bar locking devices with different sized clamping slots can be installed on the ruler. That is, by pulling the movable rod to rotate, the sliding sleeve and the locking rod are moved. The locking rod moves and disengages from the locking slot on the mating block. At this time, the steel bar locking device can be removed, and then a new steel bar locking device can be installed.

[0015] The antennae design allows the indicator tags on both sides to move as the movable marker moves. The antennae at the end of the indicator tags move on a scale, allowing users to quickly determine the distance between two steel bars by reading the values ​​on the scale. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1This is a schematic diagram of the overall structure of a highway bridge construction rebar spacing detection device according to an embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional structural schematic diagram of a rebar spacing detection device for highway bridge construction according to an embodiment of the present utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure of the movable marker, indicator card, and antenna of a highway bridge construction rebar spacing detection device according to an embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the connection structure between the limiting mechanism and the rebar locking component of a highway bridge construction rebar spacing detection device according to an embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of the steel bar locking component of a highway bridge construction steel bar spacing detection device according to an embodiment of the present invention.

[0022] In the diagram, 1. Ruler body; 2. Scale; 3. Adjustment groove; 4. Miniature motor; 5. Lead screw; 6. Nut moving block; 7. Movable marker; 8. Indicator marker; 9. Contact angle; 10. Threaded hole; 11. Movable rod; 12. Sliding sleeve; 13. Sliding groove; 14. Clamping rod; 15. Reset rod; 16. Connecting block; 17. Clamping groove; 18. Fixed marker; 19. Clamping block. Detailed Implementation

[0023] 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.

[0024] Please see Figures 1-5 This utility model provides a technical solution for a rebar spacing detection device for highway bridge construction, including a ruler body 1. The top of the ruler body 1 is provided with a scale 2. An adjustment groove 3 is opened on one side of the bottom of the ruler body 1. A lead screw 5 is rotatably connected inside the adjustment groove 3. One end of the lead screw 5 is connected to a micro motor 4 installed in the inner wall of the ruler body 1. A nut moving block 6 is threaded on the lead screw 5. The nut moving block 6 is slidably connected in the adjustment groove 3. A movable marker 7 is fixed at the bottom of the nut moving block 6. Indicator markers 8 that cooperate with the scale 2 are provided on both sides of the movable marker 7. A rebar locking component is provided on the other side of the bottom of the ruler body 1. A limiting mechanism that cooperates with the rebar locking component is provided on the side wall of the ruler body 1.

[0025] See Figure 5 The rebar locking component includes a fixing rod 18 and a clamping block 19. The fixing rod 18 and the clamping block 19 are hinged together. Each of the fixing rod 18 and the clamping block 19 has a clamping groove on its opposite side that mates with the rebar. A connecting block 16 is fixed to the top of the fixing rod 18. A snap-fit ​​groove 17 is opened on one side of the outer surface of the connecting block 16. Through the design of the rebar locking component, the rebar can be locked by the clamping grooves on the fixing rod 18 and the clamping block 19, thereby connecting the rebar to the ruler body 1. The initial positioning of the rebar can be achieved by the contact between the ruler body 1 and the two rebars.

[0026] See Figure 4 The limiting mechanism includes a docking groove formed on one side of the bottom of the ruler body 1. A sliding groove and a spring groove are respectively formed on the bottom of the outer surface of one side of the ruler body 1. The sliding groove is connected and communicates with the docking groove. The limiting mechanism also includes a movable rod 11 movably connected to one side of the outer surface of the ruler body 1 and located below the micro motor 4. A sliding sleeve 12 is fitted on the movable rod 11. The sliding sleeve 12 is movably connected to the end of a locking rod 14. The locking rod 14 is slidably connected in the sliding groove. The end of the locking rod 14 passes through the docking groove and is inserted into the locking groove 17. A sliding groove 13 is formed on the movable rod 11. A shaft is slidably connected in the sliding groove 13. The end of the shaft is movably connected to a reset rod 15. The reset rod 15 has a T-shaped structure. The end of the reset rod 15 is slidably connected in the spring groove. A reset spring is sleeved on the outer surface of the reset rod 15 and located between the inner wall of the spring groove and the inner wall of the reset rod 15. A threaded hole 10 that mates with the lead screw 5 is opened in the middle of the nut moving block 6. The nut moving block 6, the movable marker 7, and the indicator marker 8 are integrated into one structure. Through the design of the limiting mechanism, when adapting to steel bars of different sizes, steel bar locking parts with different sized clamping grooves can be installed on the ruler body 1. That is, by pulling the movable rod 11 to rotate, the sliding sleeve 12 and the snap-fit ​​rod 14 are moved. The snap-fit ​​rod 14 moves and disengages from the snap-fit ​​groove 17 on the docking block 16. At this time, the steel bar locking part can be removed and a new steel bar locking part can be installed.

[0027] See Figure 3 The end of the indicator tag 8 is provided with an antenna 9, which overlaps the scale 2. Through the design of the antenna 9, when the movable rod 7 moves, it will drive the indicator tags 8 on both sides to move. The antenna 9 at the end of the indicator tag 8 moves on the scale 2, and the user can quickly judge the distance between the two steel bars by the value of the antenna 9 on the scale 2.

[0028] In use, the clamping groove at the bottom of the fixed marker 18 is overlapped with the rebar, and then the clamping block 19 is closed. The rebar is locked by the closing of the clamping block 19 and the fixed marker 18. Then, the ruler body 1 is rotated so that it overlaps with two adjacent rebars. At this time, the micro motor 4 is started by pressing the control switch. The micro motor 4 drives the lead screw 5 to rotate, which in turn drives the nut moving block 6 to move within the ruler body 1. As the nut moving block 6 moves, it will move the movable marker 7 at the bottom to the overlapped rebar. The indicator tags 8 on both sides move, and the antennae 9 at the end of the indicator tag 8 moves on the scale 2. The user can quickly determine the distance between the two steel bars by the value of the antennae 9 on the scale 2. When adapting to steel bars of different sizes, steel bar locking parts with different sized clamping grooves can be installed on the scale body 1. That is, by pulling the movable rod 11 to rotate, the sliding sleeve 12 and the locking rod 14 are moved. The locking rod 14 moves and disengages from the locking groove 17 on the docking block 16. At this time, the steel bar locking part can be removed and a new steel bar locking part can be installed.

[0029] Although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A device for detecting the spacing of reinforcing bars in highway bridge construction, characterized in that, The utility model provides a kind of adjustable ruler, including ruler body (1), the top of the ruler body (1) is equipped with scale (2), the bottom side of the ruler body (1) is equipped with adjusting groove (3), screw rod (5) is rotatably connected inside the adjusting groove (3), one end of the screw rod (5) is connected with micro motor (4) installed in the inner wall of the ruler body (1), nut moving block (6) is threadedly sleeved on the screw rod (5), the nut moving block (6) is slidably connected in the adjusting groove (3), the bottom of the nut moving block (6) is fixed with movable staff (7), the both sides of the movable staff (7) are equipped with indicating mark card (8) cooperation with the scale (2), the bottom other side of the ruler body (1) is equipped with steel bar locking part, the sidewall of the ruler body (1) is equipped with limiting mechanism cooperation with the steel bar locking part.

2. The device for detecting the spacing between steel bars in highway bridge construction according to claim 1, characterized in that, The steel bar locking part includes fixed staff (18) and clamping block (19), the fixed staff (18) and the clamping block (19) are hingedly connected, the opposite side of the fixed staff (18) and the clamping block (19) is equipped with clamping groove cooperation with steel bar, the top of the fixed staff (18) is fixed with butt joint block (16), the outer surface of the butt joint block (16) is equipped with clamping groove (17) on one side.

3. The device for detecting the spacing between steel bars in highway bridge construction according to claim 2, characterized in that, The limiting mechanism includes butt joint groove opened in the bottom side of the ruler body (1), the bottom of the outer surface of the one side of the ruler body (1) is equipped with sliding groove and spring groove respectively, the sliding groove is connected through with the butt joint groove.

4. The device for detecting the spacing between steel bars in highway bridge construction according to claim 3, characterized in that, The limiting mechanism further includes movable rod (11) movably connected on the outer surface of the one side of the ruler body (1) and located below the micro motor (4), the movable rod (11) is sleeved with sliding sleeve (12), the sliding sleeve (12) is movably connected with the end of clamping rod (14), the clamping rod (14) is slidably connected in the sliding groove, the end of the clamping rod (14) is inserted in the clamping groove (17) in the butt joint groove.

5. The device for detecting the spacing between steel bars in highway bridge construction according to claim 4, characterized in that, The movable rod (11) is equipped with sliding groove (13) on it, shaft rod is slidably connected in the sliding groove (13), the end of the shaft rod is movably connected with reset rod (15), the reset rod (15) is T-shaped structure, the end of the reset rod (15) is slidably connected in the spring groove, reset spring is sleeved on the outer surface of the reset rod (15) and between the inner wall of the spring groove and the inner wall of the reset rod (15).

6. The device for detecting the spacing between steel bars in highway bridge construction according to claim 5, characterized in that, The middle part of the nut moving block (6) is equipped with screw hole (10) cooperation with the screw rod (5), the nut moving block (6), the movable staff (7) and the indicating mark card (8) are one-piece structure.

7. The device for detecting the spacing between steel bars in highway bridge construction according to claim 6, characterized in that, The end of the indicating mark card (8) is equipped with antenna (9), the antenna (9) is overlapped on the scale (2).