Steel bar spacing inspection control ruler
By designing an adjustable rebar spacing inspection control ruler, the problems of limited applicability and inconvenient fixing of existing clamps are solved, enabling flexible measurement and stable fixing of different rebar spacings and improving construction efficiency.
Patent Information
- Application Number
- CN202422774167.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The existing rebar spacing inspection clamps have a narrow range of applications, cannot adapt to rebars of different types and lengths, and lack a fixed structure during use, which affects workers' operation.
A rebar spacing inspection control ruler was designed, which includes an adjustable measuring structure, an extension component, and a fixing component. It can adjust the distance between the upper and lower rods as needed, and fix the rebars through threaded rods and screws, increasing the flexibility and stability of the device.
It enables flexible measurement of steel bar spacing at different distances, improving the practicality and convenience of the device. Workers can free up their hands to perform other operations, and the device is firmly fixed and easy to carry.
Smart Images

Figure CN223485073U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of steel reinforcement construction equipment technology, specifically a steel reinforcement spacing inspection and control ruler. Background Technology
[0002] The current project involves the construction of large-area foundation raft slabs and garage roof slabs with reinforced concrete. The large diameter of the reinforcing bars often leads to deviations in their positioning during the binding process. Uneven spacing of the reinforcing bars due to improper handling by construction workers is also a common problem. Inspections are typically conducted using reinforcing bar spacing clamps. However, existing clamps have fixed slot widths, making them suitable only for one type of reinforcing bar. Furthermore, the fixed slot spacing limits their applicability to one installation spacing, resulting in a narrow scope and inconvenience for spacing checks. Additionally, the fixed length of existing clamps prevents their use for wider spacings. Moreover, the clamps lack a fixed structure during use, requiring workers to hold them constantly, tying up their hands and interfering with other operations. Utility Model Content
[0003] In view of the above situation and to overcome the existing defects, this utility model provides a rebar spacing inspection and control ruler.
[0004] This utility model provides the following technical solution: The rebar spacing inspection and control ruler proposed by this utility model includes a main rod, a measuring structure on the main rod, an extension component on the main rod, and a fixing component on the measuring structure; the measuring structure includes a lower rod, which is sleeved on one end of the main rod, and an upper rod is movably sleeved on the end of the main rod away from the lower rod, the upper rod has a threaded hole, a threaded rod is provided in the threaded hole, and a scale is provided on the surface of the main rod. In use, according to the requirements of the rebar spacing in the drawings, specifications, etc., the threaded rod is rotated to separate the threaded rod from the upper rod, the upper rod is adjusted, and the outer distance between the upper and lower rods is adjusted to the required length using the scale, then the threaded rod is rotated again to fix the upper rod, and then the upper and lower rods are placed in the middle of the rebar whose spacing needs to be measured for measurement.
[0005] Furthermore, the extension component includes a sliding channel disposed on the main rod. A slide rail is symmetrically arranged within the sliding channel, and an extension rod is movably mounted on the slide rail. The extension rod is movably disposed within the sliding channel and has a sliding groove. The extension rod is connected to the slide rail via the sliding groove. Fixed grooves are evenly distributed on the extension rod. Through holes are symmetrically arranged at the end of the main rod away from the lower rod. A fixed rod is movably mounted within the through holes. A pull plate is provided on the fixed rod, and an adjusting spring is provided between the pull plate and the main rod. The adjusting spring is sleeved on the fixed rod. When the measured interval is large, pulling the pull plate moves the pull rod away from the fixed groove, pulling the fixed rod out of the fixed groove. At this time, the adjusting spring is in a stretched state. Pulling the extension rod moves the extension rod along the slide rail, moving the extension rod to a suitable length. Releasing the pull plate, under the rebound force of the adjusting spring, the pull plate moves the fixed rod closer to the fixed groove, locking the fixed rod into the fixed groove, thus achieving the fixing effect of the extension rod and facilitating the extension of the overall structure length.
[0006] The fixing assembly includes a support frame, which has two sets. One set of the support frame is located below the lower rod, and the other set is located below the upper rod. The lower end of the lower rod has a bearing seat, and a lead screw is installed inside the bearing seat. The end of the lead screw away from the bearing seat can rotatably pass through the support frame and is located below the support frame. A lead screw pair is fitted on the lead screw, and a push plate is provided on the side of the lead screw pair. A fixed plate is fitted on the lower end of the lower rod, and a movable sleeve plate is movably fitted on the lower rod. The movable sleeve plate is located above the fixed plate, and a pressure rod is movably provided on the side of the movable sleeve plate near the push plate. A clamping plate is provided on the pressure rod. The lower end of the pressure rod is provided with a pressure plate, and a fixing spring is provided between the pressure plate and the movable sleeve plate. The fixing spring is sleeved on the pressure rod. After the steel bar to be tested is placed between the lower and upper rods, the screw is rotated. As can be seen from the prior art, during the rotation of the screw, the screw pair moves towards the main rod, and the screw pair moves towards the main rod, and the push plate moves towards the main rod, pressing the pressure plate towards the main rod. The pressure rod moves the clamping plate towards the main rod, pressing the steel bar between the clamping plate and the main rod, thereby fixing the device to the steel bar, so that the worker can free up his hands to operate other steps.
[0007] Preferably, a handle is provided at the end of the main rod away from the upper rod member to facilitate carrying the device.
[0008] Furthermore, the end of the clamping plate near the main rod is designed with an arc shape, which increases the contact area between the clamping plate and the reinforcing bar, making the device more securely fixed.
[0009] The rebar spacing inspection control ruler proposed by this utility model, which adopts the above structure, has the following beneficial effects:
[0010] 1. By setting up the measurement structure, the distance between the upper and lower members can be adjusted, and the distance between steel bars at different distances can be measured, thus improving the scope of application.
[0011] 2. The extended components not only increase the measuring distance and improve the practicality of the device, but also make it easier for workers to carry and store.
[0012] 3. The fixed components facilitate the fixing of the device to the steel bars, freeing up workers' hands to perform other tasks and greatly improving the convenience of the workers' work process.
[0013] 4. The handle makes the device easy to carry. In addition, the end of the clamping plate near the main rod is designed with an arc shape to increase the contact area between the clamping plate and the reinforcing bar, making the device more secure. Attached Figure Description
[0014] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:
[0015] Figure 1 This is a schematic diagram of the rebar spacing inspection control ruler proposed in this utility model;
[0016] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0017] Figure 3 This is a schematic diagram of the fixing component in the rebar spacing inspection control ruler proposed in this utility model;
[0018] Figure 4 This is a side view of the main rod in the steel bar spacing inspection and control ruler proposed in this utility model.
[0019] The components are as follows: 1. Main rod; 2. Measuring structure; 3. Extension assembly; 4. Fixing assembly; 5. Lower rod; 6. Upper rod; 7. Threaded hole; 8. Threaded rod; 9. Scale; 10. Sliding channel; 11. Slide rail; 12. Extension rod; 13. Slide groove; 14. Fixing groove; 15. Through hole; 16. Fixing rod; 17. Pull plate; 18. Adjusting spring; 19. Support frame; 20. Shaft seat; 21. Lead screw; 22. Lead screw pair; 23. Push plate; 24. Fixing plate; 25. Movable sleeve plate; 26. Pressure rod; 27. Clamping plate; 28. Pressure plate; 29. Fixing spring; 30. Handle. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0021] It should be noted that the terms “front,” “back,” “left,” “right,” “up,” and “down” used in the following description refer to the directions shown in the attached diagram, while the terms “inside” and “outside” refer to the directions toward or away from the geometric center of a specific component, respectively.
[0022] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, this embodiment provides a control ruler for checking the spacing of reinforcing bars, including a main rod 1, a measuring structure 2 on the main rod 1, an extension component 3 on the main rod 1, a fixing component 4 on the measuring structure 2, and a handle 30 on the end of the main rod 1 away from the upper rod 6; the measuring structure 2 includes a lower rod 5, which is sleeved on one end of the main rod 1, and the upper rod 6 is movably sleeved on the end of the main rod 1 away from the lower rod 5, the upper rod 6 is provided with a threaded hole 7, a threaded rod 8 is provided in the threaded hole 7, and a scale 9 is provided on the surface of the main rod 1.
[0023] like Figure 1 , Figure 2 As shown, the extension component 3 includes a sliding channel 10, which is located on the main rod 1. A slide rail 11 is symmetrically arranged inside the sliding channel 10. An extension rod 12 is movably arranged on the slide rail 11 and is movably arranged inside the sliding channel 10. A groove 13 is provided on the extension rod 12, and the extension rod 12 is connected to the slide rail 11 through the groove 13. Fixed grooves 14 are evenly arranged on the extension rod 12. Through holes 15 are symmetrically arranged at the end of the main rod 1 away from the lower rod 5. A fixed rod 16 is movably arranged inside the through hole 15. A pull plate 17 is provided on the fixed rod 16. An adjusting spring 18 is provided between the pull plate 17 and the main rod 1 and is sleeved on the fixed rod 16.
[0024] like Figure 1 , Figure 3As shown, the fixing component 4 includes a support frame 19, which has two sets. One set of the support frame 19 is located under the lower rod 5, and the other set is located under the upper rod 6. The lower end of the lower rod 5 is provided with a bearing seat 20, and a lead screw 21 is provided inside the bearing seat 20. The end of the lead screw 21 away from the bearing seat 20 can rotatably pass through the support frame 19 and is located below the support frame 19. A lead screw pair 22 is sleeved on the lead screw 21, and a push plate 23 is provided on the side of the lead screw pair 22. The lower part of the lower rod 5... The end is fitted with a fixed plate 24, and the lower rod 5 is movably fitted with a movable sleeve plate 25. The movable sleeve plate 25 is located above the fixed plate 24. A pressure rod 26 is movably provided on the side of the movable sleeve plate 25 near the push plate 23. A clamping plate 27 is provided on the pressure rod 26. The end of the clamping plate 27 near the main rod 1 is set with an arc structure. A pressure plate 28 is provided at the lower end of the pressure rod 26. A fixing spring 29 is provided between the pressure plate 28 and the movable sleeve plate 25. The fixing spring 29 is sleeved on the pressure rod 26.
[0025] In practical use, according to the requirements of the drawings and specifications for the spacing of the reinforcing bars, rotate the threaded rod 8 to separate it from the upper rod 6. Adjust the upper rod 6 and use the scale 9 to adjust the outer distance between the upper and lower rods 5 to the required length. Then rotate the threaded rod 8 to fix the upper rod 6 in place. Then place the upper and lower rods 5 in the middle of the reinforcing bars whose spacing needs to be measured. When it is necessary to fix the device to the reinforcing bars, rotate the lead screw 21. As is known from the prior art, during the rotation of the lead screw 21, the lead screw pair 22 moves towards the main rod 1. The lead screw pair 22 moves the push plate 23 towards the main rod 1. During the movement, the push plate 23 presses the pressure plate 28 towards the main rod 1. The pressure rod 26 moves towards the main rod 1 through the pressure rod 26. The clamping plate 27 is moved closer to the main rod 1, pressing the reinforcing bar between the clamping plate 27 and the main rod 1, thereby fixing the device to the reinforcing bar. When the measured interval is large, the pull plate 17 is pulled, and the pull rod, along with the fixing rod 16, moves away from the fixing groove 14, pulling the fixing rod 16 out of the fixing groove 14. At this time, the adjusting spring 18 is in a stretched state. The extension rod 12 is pulled, causing the extension rod 12 to move along the slide rail 11, moving the extension rod 12 to a suitable length. The pull plate 17 is released, and under the action of the rebound force of the adjusting spring 18, the pull plate 17 moves closer to the fixing groove 14, locking the fixing rod 16 into the fixing groove 14, thereby achieving the fixing effect of the extension rod 12 and facilitating the extension of the overall structure length.
[0026] 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, material, 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, material, or apparatus.
[0027] 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.
Claims
1. A control ruler for checking rebar spacing, characterized in that: The device includes a main rod, a measuring structure on the main rod, an extension component on the main rod, and a fixing component on the measuring structure. The measuring structure includes a lower rod, which is sleeved on one end of the main rod. An upper rod is movably sleeved on the end of the main rod away from the lower rod. The upper rod has a threaded hole, and a threaded rod is provided in the threaded hole. A scale is provided on the surface of the main rod.
2. The rebar spacing inspection control ruler according to claim 1, characterized in that: The extension component includes a sliding channel located on the main rod. A slide rail is symmetrically arranged within the sliding channel, and an extension rod is movably mounted on the slide rail. The extension rod is movably positioned within the sliding channel and has a sliding groove. The extension rod is connected to the slide rail via the sliding groove. Fixed grooves are evenly distributed on the extension rod. A through hole is symmetrically arranged at the end of the main rod away from the lower rod. A fixed rod is movably mounted within the through hole. A pull plate is provided on the fixed rod, and an adjusting spring is provided between the pull plate and the main rod. The adjusting spring is sleeved on the fixed rod.
3. The rebar spacing inspection control ruler according to claim 2, characterized in that: The fixing assembly includes a support frame, which has two sets. One set of the support frame is located under the lower rod, and the other set is located under the upper rod. The lower end of the lower rod is provided with a bearing seat, and a lead screw is provided inside the bearing seat. The end of the lead screw away from the bearing seat is rotatably inserted through the support frame and located below the support frame. A lead screw pair is sleeved on the lead screw, and a push plate is provided on the side of the lead screw pair. A fixed plate is sleeved on the lower end of the lower rod, and a movable sleeve plate is movably sleeved on the lower rod. The movable sleeve plate is located above the fixed plate, and a pressure rod is movably provided on the side of the movable sleeve plate near the push plate. A clamping plate is provided on the pressure rod, and a pressure plate is provided at the lower end of the pressure rod. A fixing spring is provided between the pressure plate and the movable sleeve plate, and the fixing spring is sleeved on the pressure rod.
4. The rebar spacing inspection and control ruler according to claim 3, characterized in that: A handle is provided at the end of the main rod away from the upper rod.
5. The rebar spacing inspection control ruler according to claim 4, characterized in that: The end of the card plate near the main rod has an arc-shaped structure.