Floor crack depth detector

By introducing a support mechanism into the floor slab crack depth detector, automatic support and angle adjustment are achieved, solving the problem of laborious hand operation, improving user comfort, preventing dust from entering, and ensuring the normal operation of the instrument.

CN223783615UActive Publication Date: 2026-01-09LUOYANG MENGSEN CONSTR ENG QUALITY TESTING CO LTD
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Patent Information

Application Number
CN202520467067.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-18
Publication Date
2026-01-09
Estimated Expiration
2035-03-18

AI Technical Summary

Technical Problem

Existing floor slab crack depth detectors lack a support mechanism, requiring operators to hold them by hand, which is strenuous and reduces user comfort.

Method used

A floor slab crack depth detector with a support mechanism was designed. Through the combination of support frame, rotating rod, lead screw, square nut and knob, the detector can be automatically supported and its angle adjusted, reducing the need for hand operation.

Benefits of technology

The design of the support mechanism reduces the operator's workload, improves the comfort of using the testing instrument, and prevents dust from entering the connector through the shielding mechanism, ensuring the normal use of the instrument.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of crack detection, in particular to a floor crack depth detector which comprises a detector body, a control panel is arranged on the surface of the detector body, a connector is fixedly installed on the surface of the detector body, a supporting mechanism is arranged on the surface of the detector body, and the supporting mechanism is fixedly installed on the surface of the detector body. The supporting mechanism comprises a rotating rod, and the rotating rod is rotationally connected to the surface of the detector body. The rotary knob drives the screw rod to rotate on the surface of the fixing block, the screw rod rotates to drive the square nut to slide on the surface of the detector body, the square nut drives the supporting frame to rotate on the surface of the detector body through the adjusting rod in the sliding process, and the supporting frame rotates on the top of the detector body through the rotating rod. At the moment, the supporting frame is matched with the upper cushion block to support the detector body, so that an operator can use the detector in a labor-saving manner, and the use comfort of the detector body is greatly improved.
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Description

Technical Field

[0001] This utility model relates to the field of crack detection technology, specifically a floor slab crack depth detector. Background Technology

[0002] A crack detector is a specialized instrument used to detect and measure the width, depth, and direction of cracks in structures such as buildings, bridges, tunnels, concrete pavements, and metal surfaces. It helps engineers and technicians assess the integrity and safety of structures and make scientific judgments about the development trend of cracks.

[0003] Existing floor slab crack depth detectors lack a support mechanism, requiring operators to hold them by hand, which is very strenuous and reduces the comfort of using the detector. Utility Model Content

[0004] The purpose of this utility model is to provide a floor slab crack depth detector to solve the problem mentioned in the background art that the existing floor slab crack depth detectors do not have a support mechanism and require the operator to hold them by hand during use, which is very laborious and reduces the comfort of using the floor slab crack depth detector.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a floor slab crack depth detector, comprising a detector body, a control panel on the surface of the detector body, a connector fixedly mounted on the surface of the detector body, a support mechanism on the surface of the detector body, the support mechanism including a rotating rod rotatably connected to the surface of the detector body, a support frame fixedly connected to the surface of the rotating rod, a fixing block fixedly connected to the surface of the detector body, a lead screw rotatably connected to the surface of the fixing block, a square nut threadedly connected to the surface of the lead screw, a knob fixedly connected to the surface of the lead screw, an adjusting rod rotatably connected to the surface of the square nut, the end of the adjusting rod away from the square nut rotatably connected to the surface of the support frame, and a pad fixedly connected to the bottom of the detector body.

[0006] Preferably, a shielding mechanism is provided on the surface of the detector body. The shielding mechanism includes a fixed plate, which is fixedly connected to the top of the detector body. A spring is fixedly connected to the surface of the fixed plate, and a shielding plate is fixedly connected to the surface of the spring. The shielding plate is slidably connected to the surface of the fixed plate.

[0007] Preferably, the support frame rotates on top of the detector body via a rotating rod, and the support frame is in an "H" shape. The pads support the detector body at the bottom, and there are two sets of pads symmetrically distributed at the bottom of the detector body.

[0008] Preferably, the lead screw is driven to rotate on the surface of the fixed block by a knob, and the lead screw drives the square nut to slide on the surface of the detector body by rotation.

[0009] Preferably, during the sliding process, the square nut drives the support frame to rotate on the top of the detector body via the adjusting rod. After the lead screw stops rotating, it restricts the position of the square nut on the detector body. The square nut restricts the angle of the support frame after it rotates on the detector body via the adjusting rod.

[0010] Preferably, a guide hole is provided on the surface of the fixing plate, the baffle plate slides on the guide hole of the fixing plate, and the elastic force of the spring acts on the baffle plate.

[0011] Preferably, the shield is in an "L" shape and slides to the top of the connector via a fixing plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This depth measuring instrument uses a knob to drive a lead screw to rotate on the surface of a fixed block. The lead screw, through rotation, drives a square nut to slide on the surface of the measuring instrument body. During the sliding process, the square nut drives a support frame to rotate on the surface of the measuring instrument body via an adjusting rod. The support frame rotates on the top of the measuring instrument body via a rotating rod. At this time, the support frame, together with the pad, supports the measuring instrument body. By adjusting the tilt angle of the support frame on the measuring instrument body, the support angle of the measuring instrument body is changed. This support mechanism eliminates the need for the operator to hold the measuring instrument body, making it much easier for the operator to use and greatly improving the comfort of using the measuring instrument body.

[0014] 2. This depth detector uses the elastic force of a spring to make the baffle plate slide towards the connector through the guide hole of the fixed plate, and then slide the baffle plate onto the surface of the connector. The baffle plate blocks the connector and prevents dust from entering the interior of the connector, thus ensuring the normal use of the connector. Attached Figure Description

[0015] Figure 1 This is a three-dimensional front view of the structure of this utility model;

[0016] Figure 2 This is a three-dimensional rear view of the structure of this utility model;

[0017] Figure 3 This is a side view of the structure of this utility model;

[0018] Figure 4 This is a front view schematic diagram of the structure of this utility model;

[0019] Figure 5 This utility model Figure 3 Enlarged structural diagram at point A;

[0020] Figure 6 This utility model Figure 4 A magnified structural diagram at point B in the middle.

[0021] In the diagram: 1. Detector body; 11. Control panel; 12. Connector; 2. Rotating rod; 21. Support frame; 22. Fixing block; 23. Lead screw; 24. Square nut; 25. Knob; 26. Adjusting rod; 27. Pad; 3. Fixing plate; 31. Spring; 32. Cover plate. Detailed Implementation

[0022] 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.

[0023] Please see Figure 1-6 One embodiment provided by this utility model:

[0024] A floor slab crack depth detector includes a detector body 1, a control panel 11 on the surface of the detector body 1, a connector 12 fixedly mounted on the surface of the detector body 1, and a support mechanism on the surface of the detector body 1. The support mechanism includes a rotating rod 2 rotatably connected to the surface of the detector body 1, a support frame 21 fixedly connected to the surface of the rotating rod 2, a fixing block 22 fixedly connected to the surface of the detector body 1, a lead screw 23 rotatably connected to the surface of the fixing block 22, a square nut 24 threadedly connected to the surface of the lead screw 23, a knob 25 fixedly connected to the surface of the lead screw 23, an adjusting rod 26 rotatably connected to the surface of the square nut 24, and an end of the adjusting rod 26 away from the square nut 24 rotatably connected to the surface of the support frame 21. A pad 27 is fixedly connected to the bottom of the detector body 1. This support mechanism can support the detector body 1 on a tabletop without the operator needing to hold it, and can adjust the angle of support of the detector body 1, making it very labor-saving for the operator and greatly improving the comfort of using the detector body 1.

[0025] Furthermore, a shielding mechanism is provided on the surface of the detector body 1. The shielding mechanism includes a fixing plate 3, which is fixedly connected to the top of the detector body 1. A spring 31 is fixedly connected to the surface of the fixing plate 3, and a shielding plate 32 is fixedly connected to the surface of the spring 31. The shielding plate 32 is slidably connected to the surface of the fixing plate 3. This shielding mechanism can shield the connector 12 to prevent a large amount of dust from entering the connector 12, ensuring that the signal line can be used normally after being connected to the connector 12.

[0026] Furthermore, the support frame 21 rotates on top of the detector body 1 via the rotating rod 2. The support frame 21 is in an "H" shape. The pad 27 supports the detector body 1 at the bottom. There are two sets of pads 27, which are symmetrically distributed at the bottom of the detector body 1. The knob 25 is located in the middle of the detector body 1. The support of the pad 27 prevents the knob 25 from contacting the table. The support frame 21, together with the pad 27, supports the detector body 1, avoiding the need for the operator to hold it.

[0027] Furthermore, the lead screw 23 is driven to rotate on the surface of the fixed block 22 by the knob 25. The lead screw 23 drives the square nut 24 to slide on the surface of the detector body 1 by rotation. After the lead screw 23 has rotated, it will lock the position of the square nut 24 on the surface of the detector body 1.

[0028] Furthermore, during the sliding process, the square nut 24 drives the support frame 21 to rotate on the top of the detector body 1 via the adjusting rod 26. After the lead screw 23 stops rotating, it restricts the position of the square nut 24 on the detector body 1. The square nut 24 restricts the angle of the support frame 21 after rotation on the detector body 1 via the adjusting rod 26. Thus, the angle of the support frame 21 on the detector body 1 can be changed by rotating the knob 25, providing more support angles for the detector body 1. In addition, the support frame 21 can be folded on the back of the detector body 1, saving storage space.

[0029] Furthermore, a guide hole is provided on the surface of the fixing plate 3, and the baffle plate 32 slides on the guide hole of the fixing plate 3. The elastic force of the spring 31 acts on the baffle plate 32. The baffle plate 32 and the fixing plate 3 are perpendicular to each other. The spring 31 causes the baffle plate 32 to move on the surface of the connector 12 through the elastic force.

[0030] Furthermore, the shield 32 is in an "L" shape. The shield 32 slides to the top of the connector 12 via the fixing plate 3. The shield 32 shields the connector 12 to prevent dust from entering the interior of the connector 12 and ensures the normal use of the connector 12.

[0031] Working principle: The screw 23 is driven to rotate on the surface of the fixed block 22 by the knob 25. The screw 23 drives the square nut 24 to slide on the surface of the instrument body 1 by rotation. During the sliding process, the square nut 24 drives the support frame 21 to rotate on the surface of the instrument body 1 through the adjusting rod 26. The support frame 21 rotates on the top of the instrument body 1 through the rotating rod 2. At this time, the support frame 21, together with the pad 27, supports the instrument body 1. By adjusting the tilt angle of the support frame 21 on the instrument body 1, the support angle of the instrument body 1 is changed. This support mechanism makes the instrument body 1 free from the operator's hand, which is very labor-saving for the operator and greatly improves the comfort of using the instrument body 1.

[0032] The spring force of the spring 31 causes the baffle plate 32 to slide in the direction of the connector 12 on the guide hole of the fixing plate 3, and the baffle plate 32 slides onto the surface of the connector 12. The baffle plate 32 blocks the connector 12 to prevent dust from entering the interior of the connector 12, thus ensuring the normal use of the connector 12.

[0033] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A floor slab crack depth detector, characterized in that: The instrument includes a detector body (1), a control panel (11) is provided on the surface of the detector body (1), a connector (12) is fixedly installed on the surface of the detector body (1), a support mechanism is provided on the surface of the detector body (1), the support mechanism includes a rotating rod (2), the rotating rod (2) is rotatably connected to the surface of the detector body (1), a support frame (21) is fixedly connected to the surface of the rotating rod (2), a fixing block (22) is fixedly connected to the surface of the detector body (1), a lead screw (23) is rotatably connected to the surface of the fixing block (22), a square nut (24) is threadedly connected to the surface of the lead screw (23), a knob (25) is fixedly connected to the surface of the lead screw (23), an adjusting rod (26) is rotatably connected to the surface of the square nut (24), the end of the adjusting rod (26) away from the square nut (24) is rotatably connected to the surface of the support frame (21), and a pad (27) is fixedly connected to the bottom of the detector body (1).

2. The floor slab crack depth detector according to claim 1, characterized in that: A shielding mechanism is provided on the surface of the detector body (1). The shielding mechanism includes a fixing plate (3). The fixing plate (3) is fixedly connected to the top of the detector body (1). A spring (31) is fixedly connected to the surface of the fixing plate (3). A shielding plate (32) is fixedly connected to the surface of the spring (31). The shielding plate (32) is slidably connected to the surface of the fixing plate (3).

3. The floor slab crack depth detector according to claim 1, characterized in that: The support frame (21) rotates on the top of the detector body (1) via the rotating rod (2). The support frame (21) is in an "H" shape. The pad (27) supports the detector body (1) at the bottom. There are two sets of pads (27), which are symmetrically distributed at the bottom of the detector body (1).

4. The floor slab crack depth detector according to claim 3, characterized in that: The lead screw (23) is driven to rotate on the surface of the fixed block (22) by the knob (25), and the lead screw (23) drives the square nut (24) to slide on the surface of the detector body (1) by rotation.

5. A floor slab crack depth detector according to claim 4, characterized in that: During the sliding process, the square nut (24) drives the support frame (21) to rotate on the top of the detector body (1) through the adjusting rod (26). After the lead screw (23) stops rotating, it restricts the position of the square nut (24) on the detector body (1). The square nut (24) restricts the angle of the support frame (21) after it rotates on the detector body (1) through the adjusting rod (26).

6. The floor slab crack depth detector according to claim 2, characterized in that: The surface of the fixing plate (3) is provided with a guide hole, the shielding plate (32) slides on the guide hole of the fixing plate (3), and the elastic force of the spring (31) acts on the shielding plate (32).

7. A floor slab crack depth detector according to claim 6, characterized in that: The shield (32) is in an "L" shape and slides to the top of the connector (12) via the fixing plate (3).