Manual measuring device for reinforcement spacing and cover thickness

Abstract

This utility model discloses a manual measuring device for rebar spacing and protective layer thickness, relating to the field of building surveying technology. The manual measuring device for rebar spacing and protective layer thickness includes a measuring instrument frame and a measuring mechanism fixing device. The measuring mechanism fixing device includes a fixing plate, a gear, a limiting bracket, a limiting anti-slip structure, a fixing frame, and a threaded rod. The fixing plate is fixedly connected to the top of the measuring instrument frame. The gear is rotatably connected to the surface of the fixing plate. The limiting bracket is slidably connected to the inside of the fixing plate. The limiting anti-slip structure is fixedly connected to the surface of the limiting bracket. The fixing frame is fixedly connected to the surface of the fixing plate. The threaded rod is threadedly connected to the surface of the fixing frame and rotatably connected to the limiting bracket. A knob is fixedly connected to the surface of the threaded rod. Through a reasonable structural design, the measuring mechanism fixing device effectively improves the overall fixing reliability and operational convenience of the device, and can be adapted to different on-site measurement scenarios.

Description

Technical Field

[0001] This utility model relates to the field of building measurement technology, and in particular to a manual measuring device for rebar spacing and protective layer thickness. Background Technology

[0002] Rebar spacing and cover thickness measurement are crucial steps in the construction and quality inspection of reinforced concrete structures. This involves using specialized measuring tools to inspect the distribution spacing of the reinforcing bars within the structure and the thickness of the cover from the bar surface to the edge of the structure. The purpose is to verify whether the rebar arrangement meets relevant specifications, ensuring the safety and durability of the structure. This measurement work must be carried out according to prescribed procedures during and after the structural construction process to ensure the accuracy and reliability of the measurement results, providing key data support for structural quality assessment.

[0003] In the manual measurement of rebar spacing and protective layer thickness, the measuring mechanism fixing device is a key component to ensure measurement accuracy. Existing measuring mechanism fixing devices often suffer from insufficient stability in actual use. When the operator rotates the component to drive the measuring scale to move and adjust the measuring position, the fixing structure is prone to loosening and displacement, causing the measuring scale to fail to maintain the preset measuring position, affecting the smoothness of the measurement operation, and consequently adversely affecting the accuracy of the measurement data. Therefore, a manual measuring device for rebar spacing and protective layer thickness is needed. Utility Model Content

[0004] The purpose of this utility model is to at least solve one of the technical problems existing in the prior art, and to provide a manual measuring device for rebar spacing and protective layer thickness. This device can solve the problem that the fixing stability of the measuring mechanism is insufficient, which causes the measuring scale to easily loosen and shift during the measurement process, affecting the smoothness of the measurement operation and the accuracy of the measurement data.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a manual measuring device for rebar spacing and protective layer thickness, comprising a measuring instrument frame and a measuring mechanism fixing device. The measuring mechanism fixing device includes a fixing plate, a gear, a limiting bracket, a limiting anti-slip structure, a fixing frame, and a threaded rod. The fixing plate is fixedly connected to the top of the measuring instrument frame, the gear is rotatably connected to the surface of the fixing plate, the limiting bracket is slidably connected to the inside of the fixing plate, the limiting anti-slip structure is fixedly connected to the surface of the limiting bracket, the fixing frame is fixedly connected to the surface of the fixing plate, and the threaded rod is threadedly connected to the surface of the fixing frame. The threaded rod is rotatably connected to the limiting bracket, and a knob is fixedly connected to the surface of the threaded rod.

[0006] Preferably, a bracket is fixedly connected to the surface of the fixing plate, and a handle is rotatably connected to the surface of the bracket. The rotating shaft on the handle passes through the bracket and is fixedly connected to a gear.

[0007] Preferably, a measuring scale body is slidably connected to the surface of the fixed plate, the top of the measuring scale body is provided with a toothed groove, the measuring scale body is connected to a gear through the toothed groove, and the surface of the measuring scale body is provided with scale lines.

[0008] Preferably, a slider is fixedly connected to the bottom of the measuring scale body, the slider is slidably connected to the surface of the measuring instrument frame, a first positioning plate is fixedly connected to the bottom of the slider, and a second positioning plate is fixedly connected to the bottom of the measuring instrument frame.

[0009] Preferably, a positioning plate is fixedly connected to the top of the measuring instrument frame, and one side of the positioning plate is aligned with the scale line.

[0010] Preferably, a base is fixedly connected to the top of the measuring instrument frame, and a thickness measuring ruler is slidably connected inside the base.

[0011] Preferably, a fixing block is fixedly connected to the top of the measuring instrument frame, a spring is fixedly connected to the surface of the fixing block, and a locking block is fixedly connected to the end of the spring away from the fixing block.

[0012] Preferably, the locking block is slidably connected to the top of the measuring instrument frame, and the end of the locking block near the thickness measuring ruler is in contact with the thickness measuring ruler.

[0013] Preferably, the limiting anti-slip structure can be a flexible rubber anti-slip pad.

[0014] Preferably, the limiting and anti-slip structure can be a rigid metal sheet with a rough surface.

[0015] Compared with the prior art, the beneficial effects of this utility model are: 1. This manual measuring device for rebar spacing and protective layer thickness features a well-designed measuring mechanism that enhances overall reliability and ease of operation. The fixed plate ensures stable assembly of all components. The coordinated operation of gears, threaded rods, and limiting brackets allows for rapid movement of the limiting bracket by rotating a knob after the measuring scale is adjusted to the target position. This ensures the limiting and anti-slip structure tightly adheres to the corresponding components, providing stable positioning of the measuring scale and preventing positional shifts due to component loosening during measurement. This guarantees accurate measurement data. The limiting and anti-slip structure utilizes flexible rubber anti-slip pads or rough-surfaced rigid metal sheets to further enhance the limiting effect. The threaded connection between the fixed bracket and the threaded rod ensures smooth and controllable movement of the limiting bracket. The overall structure is simple and compact, with easy operation, adaptable to various on-site measurement scenarios, improving the efficiency and quality of measurement work, and meeting the actual needs of construction quality inspection. Attached Figure Description

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments: Figure 1This is a schematic diagram of the main body of this utility model; Figure 2 This is a schematic diagram of the slider of this utility model; Figure 3 For the present utility model Figure 1 Schematic diagram at point A in the middle; Figure 4 This is a schematic diagram showing the disassembled parts of this utility model; Figure 5 This is a schematic diagram of the internal structure of this utility model.

[0017] Reference numerals in the attached diagram: 1. Measuring instrument frame; 2. Fixing plate; 3. Positioning plate; 4. Measuring ruler body; 5. Scale line; 6. Gear; 7. Slider; 8. First positioning plate; 9. Second positioning plate; 10. Thickness measuring ruler; 11. Base; 12. Locking block; 13. Spring; 14. Fixing block; 15. Gear; 16. Bracket; 17. Handle; 18. Limiting bracket; 19. Limiting anti-slip structure; 20. Fixing frame; 21. Threaded rod; 22. Knob. Detailed Implementation

[0018] This section will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the accompanying drawings. The purpose of the drawings is to supplement the textual description with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but they should not be construed as limiting the scope of protection of the present utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not 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.

[0020] In the description of this utility model, terms such as greater than, less than, and exceeding are understood to exclude the stated number, while terms such as above, below, and within are understood to include the stated number. The use of terms like "first" and "second" is merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the quantity or sequence of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Please see Figure 1-5This utility model provides a technical solution: a manual measuring device for rebar spacing and protective layer thickness, wherein: The top of the measuring instrument frame 1 is fixedly connected to the fixing plate 2, which provides a stable support foundation for the subsequent assembly of various components, ensures the stability of the overall structure of the device, and avoids the impact of data accuracy on the base shaking during the measurement process.

[0023] A gear 15 is rotatably connected to the surface of the fixed plate 2. The gear 15 meshes with the toothed groove 6 on the top of the measuring scale body 4. The rotating gear 15 can drive the measuring scale body 4 to move horizontally through the toothed groove 6, thereby achieving flexible adjustment of the measurement position.

[0024] A fixing bracket 20 is fixedly connected to the surface of the fixing plate 2. A threaded rod 21 is threadedly connected to the surface of the fixing bracket 20. One end of the threaded rod 21 is rotatably connected to the limiting bracket 18. Rotating the threaded rod 21 can push the limiting bracket 18 to slide inside the fixing plate 2 and adjust the limiting position.

[0025] The limiting bracket 18 is fixedly connected to the limiting anti-slip structure 19. The limiting anti-slip structure 19 adopts a flexible rubber anti-slip pad or a rigid metal sheet with a rough surface. When it is in close contact with the gear 15, it can enhance the friction force, realize the stable limiting of the gear 15, and prevent the gear from rotating during measurement.

[0026] A bracket 16 is fixedly connected to the surface of the fixed plate 2, and a handle 17 is rotatably connected to the surface of the bracket 16. The rotating shaft on the handle 17 passes through the bracket 16 and is fixedly connected to the gear 15. Rotating the handle 17 can directly drive the gear 15 to rotate, providing convenient driving force for the movement of the measuring scale.

[0027] The measuring scale 4 has scale lines 5 on its surface. The top of the measuring instrument frame 1 is fixedly connected to the positioning plate 3. One side of the positioning plate 3 is aligned with the scale lines 5, which can quickly read the measurement data and improve the accuracy and efficiency of the measurement reading.

[0028] The bottom of the measuring scale body 4 is fixedly connected to the slider 7, which is slidably connected to the surface of the measuring instrument frame 1. The bottom of the slider 7 is fixedly connected to the first positioning plate 8, and the bottom of the measuring instrument frame 1 is fixedly connected to the second positioning plate 9. The slider drives the first positioning plate 8 and the second positioning plate 9 to cooperate and fit against the surface of the steel bar.

[0029] The measuring instrument frame 1 is fixedly connected to the base 11 at the top. The thickness measuring ruler 10 is slidably connected inside the base 11. Pushing the thickness measuring ruler 10 allows it to slide along the base 11, enabling rapid measurement of the protective layer thickness and adapting to different measurement scenarios.

[0030] A fixing block 14 is fixedly connected to the top of the measuring instrument frame 1. A spring 13 is fixedly connected to the surface of the fixing block 14. A locking block 12 is fixedly connected to the end of the spring 13 away from the fixing block 14. The spring 13 provides continuous elastic pressure to the locking block 12 to ensure the stability of the limit.

[0031] The locking block 12 is slidably connected to the top of the measuring instrument frame 1. The end of the locking block 12 near the thickness measuring ruler 10 is in contact with the thickness measuring ruler 10. Through the elastic force of the spring 13, it is tightly attached to the thickness measuring ruler 10 to achieve the limit fixation after measurement, which facilitates subsequent reading.

[0032] Working principle: When in use, turning the handle 17 drives the gear 15 to rotate. The gear 15 drives the measuring scale body 4 to move through the tooth groove 6, so that the first positioning plate 8 and the second positioning plate 9 separate and respectively attach to the outer surface of the steel bar. At this time, turning the knob 22 pushes the limiting bracket 18 to move, so that the limiting anti-slip structure 19 is in close contact with the gear 15 to achieve the limiting and fixing of the measuring scale body 4, thus completing the measurement of the steel bar spacing. Pushing the thickness measuring scale 10 can perform the measurement of the protective layer thickness. The locking block 12 is in close contact with the thickness measuring scale 10 under the action of the spring 13 to achieve the limiting. After the measurement is completed, the measuring instrument frame 1 can be directly removed. Data can be obtained by observing the scale on the measuring scale body 4 and the thickness measuring scale 10, making the operation more convenient.

[0033] Example 1: (Reference) Figure 2 ) The limiting anti-slip structure 19 uses a flexible rubber anti-slip pad. This material has good elasticity and anti-slip performance. When the knob 22 is turned to push the limiting bracket 18 to move, the flexible rubber anti-slip pad can closely fit the surface of the gear 15. Through its own elastic deformation, it increases the friction between the gear 15 and the gear 15, effectively preventing the gear 15 from rotating unexpectedly during the measurement process. This ensures that the measuring scale 4 is stably kept in the preset measurement position, guaranteeing the accuracy of the rebar spacing measurement data. At the same time, the flexible material will not cause wear to the surface of the gear 15 when it comes into contact with the gear 15, extending the service life of the gear 15. Moreover, the rubber material has a low cost, making it easy to mass-produce and replace, reducing the maintenance cost of the device, and improving the overall practicality and economy of the device.

[0034] Example 2: (Reference) Figure 3 ) The limiting and anti-slip structure 19 uses a rigid metal sheet with a rough surface. The rigid metal sheet has high strength and high wear resistance. It is not easy to deform during long-term use and can always maintain a rough surface. When it comes into contact with the gear 15, it can form a stable anti-slip limiting effect through the rough surface. Even in complex construction site environments, it can effectively resist the influence of external vibration and other factors on the limiting effect, ensuring the limiting stability of the measuring scale 4. It is especially suitable for high-frequency measurement scenarios. The metal sheet material is resistant to high temperature and corrosion, and is suitable for different climates and construction environments, further improving the environmental adaptability of the device, ensuring the continuous and stable operation of measurement work, and providing reliable structural support for rebar detection work.

[0035] Example 3: (Reference) Figure 1-5 ) The limiting anti-slip structure 19 made of flexible rubber anti-slip pad material is suitable for conventional indoor construction scenarios and measurement work with high requirements for the surface protection of gears 15. Its elastic contact characteristics can avoid component wear and are suitable for low-frequency, high-precision measurement of rebar spacing and protective layer thickness. It can stably perform the limiting function in a relatively mild environment and ensure accurate measurement data. The limiting anti-slip structure 19 made of rigid metal sheet with rough surface is suitable for complex outdoor construction scenarios, high-frequency measurement operations and construction environments with strong vibration. Its high strength and high wear resistance can resist the influence of harsh environments, avoid limiting failure, and ensure that it can maintain a stable limiting effect during long-term high-intensity use, meeting the measurement needs of different construction scenarios.

[0036] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A manual device for measuring the spacing between reinforcing bars and the thickness of the protective layer, characterized in that, include: Measuring instrument rack (1); The measuring mechanism fixing device includes a fixing plate (2), a gear (15), a limiting bracket (18), a limiting anti-slip structure (19), a fixing frame (20), and a threaded rod (21). The fixing plate (2) is fixedly connected to the top of the measuring instrument frame (1). The gear (15) is rotatably connected to the surface of the fixing plate (2). The limiting bracket (18) is slidably connected to the inside of the fixing plate (2). The limiting anti-slip structure (19) is fixedly connected to the surface of the limiting bracket (18). The fixing frame (20) is fixedly connected to the surface of the fixing plate (2). The threaded rod (21) is threadedly connected to the surface of the fixing frame (20). The threaded rod (21) is rotatably connected to the limiting bracket (18). A knob (22) is fixedly connected to the surface of the threaded rod (21).

2. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, characterized in that: The surface of the fixed plate (2) is fixedly connected to a bracket (16), and the surface of the bracket (16) is rotatably connected to a handle (17). The rotating shaft on the handle (17) passes through the bracket (16) and is fixedly connected to the gear (15).

3. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The surface of the fixed plate (2) is slidably connected to the measuring scale body (4), the top of the measuring scale body (4) is provided with a toothed groove (6), the measuring scale body (4) is meshed with the gear (15) through the toothed groove (6), and the surface of the measuring scale body (4) is provided with scale lines (5).

4. The manual reinforcement spacing and cover thickness measuring device according to claim 3, characterized in that: The bottom of the measuring scale body (4) is fixedly connected to a slider (7), which is slidably connected to the surface of the measuring instrument frame (1). The bottom of the slider (7) is fixedly connected to a first positioning plate (8), and the bottom of the measuring instrument frame (1) is fixedly connected to a second positioning plate (9).

5. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The top of the measuring instrument frame (1) is fixedly connected to a positioning plate (3), and one side of the positioning plate (3) is aligned with the scale line (5).

6. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The top of the measuring instrument frame (1) is fixedly connected to a base (11), and a thickness measuring ruler (10) is slidably connected inside the base (11).

7. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The top of the measuring instrument frame (1) is fixedly connected to a fixing block (14), and a spring (13) is fixedly connected to the surface of the fixing block (14). A locking block (12) is fixedly connected to the end of the spring (13) away from the fixing block (14).

8. The manual reinforcement spacing and cover thickness measuring device according to claim 7, characterized in that: The locking block (12) is slidably connected to the top of the measuring instrument frame (1), and one end of the locking block (12) near the thickness measuring ruler (10) is in contact with the thickness measuring ruler (10).

9. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The limiting anti-slip structure (19) can be a flexible rubber anti-slip pad.

10. The manual reinforcement bar spacing and cover thickness measuring device according to claim 1, wherein: The limiting anti-slip structure (19) can be a rigid metal sheet with a rough surface.

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