Crack detector with stable placement

Abstract

The utility model discloses a crack detector with stable placement, and relates to the technical field of crack detectors, the crack detector comprises a base and a worm gear, the top of the base is provided with an electric push rod, one side of the base is fixedly connected with a connecting frame, and the top of the electric push rod is fixedly provided with a protection box. According to the crack detector with the stable placement function, a handle is pulled to drive a rack rod to be meshed with a transmission gear, the transmission gear can drive two sets of worms to be meshed with two sets of worm wheels, supports on the two sides of the base are unfolded, the crack detector is stably supported, and when the supports need to be folded, the handle is pushed to move, so that the crack detector is stably placed. When the handle moves, the support can be driven to be reversely folded, after the support is folded, the handle made of the magnetic conductive material can be attracted to the first magnet, the handle is prevented from moving freely in the moving process of the crack detector, and therefore the crack detector can be conveniently supported through the operation, and the crack detector can be stably placed.

Description

Technical Field

[0001] The utility model relates to the technical field of crack detectors, in particular to a crack detector with stable placement. Background Art

[0002] The crack detector is an instrument used to accurately detect the width and depth of cracks in bridges, tunnels, buildings, concrete pavements, metal surfaces, etc. The crack detector can detect parameters such as the width, length, and depth of cracks, and through data analysis, evaluate the degree of hazard and safety of the cracks, providing a scientific basis for repair and maintenance.

[0003] For example, publication number CN219162106U discloses a crack detection device for construction projects. When detecting cracks in a wall, the detection plate is rotated, and the detection plate drives the crack detector to rotate so that the crack detector faces the wall, so that the detection personnel can detect cracks in the wall. When detecting cracks in a roof, the detection plate is rotated so that the crack detector faces the roof. The detection plate is supported on a mounting box, and the mounting box supports the detection plate. The crack detector is then moved to detect the roof. The operation is simple and convenient, and it is convenient for the detection personnel to detect cracks in the roof.

[0004] When using the crack detector in the above patent, it is necessary to push the crack detector to the detection position and then fix the casters at the bottom of the crack detector. However, it is cumbersome to fix the four sets of casters, and the contact area between the two sides of the crack detector and the ground is small, which makes it easy to tip over, making it inconvenient to place the crack detector stably. Utility Model Content

[0005] The utility model aims to provide a crack detector with stable placement, so as to solve the problem that the existing crack detectors proposed in the above background technology are not convenient for stable placement.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a crack detector with stable placement, comprising: a base and a worm gear, an electric push rod is installed on the top of the base, a connecting frame is fixedly connected to one side of the base, a protection box is fixed on the top of the electric push rod, and the interior of the protection box is movably connected to the transmission shafts on both sides of the detector body through bearings,

[0007] A detection probe is installed on the top of the detector body, and a protective frame is installed on the top of the detector body.

[0008] Preferably, a sliding groove for the rack rod to slide is opened inside the base, one side of the rack rod is meshedly connected with a transmission gear, the other side of the rack rod is fixedly connected with a handle, and both sides of the transmission gear are fixedly connected with connecting rods.

[0009] Preferably, the outer side of the connecting rod is movably connected to the base via a bearing, one end of the connecting rod is fixedly connected to a worm, and the outer side of the worm is meshingly connected to a worm wheel.

[0010] Preferably, a bracket is fixedly connected to the inside of the worm gear, two sides of the bracket are movably connected to the base via a rotating shaft, and a first magnet is fixed to a side of the base close to the handle.

[0011] Preferably, the top of the protection box is movably connected to the connecting shafts on both sides of the first baffle through bearings, the interior of the first baffle is movably connected to the second baffle through a rotating shaft, and one side of the second baffle is fixedly connected to a second magnet.

[0012] Preferably, first synchronous wheels are fixedly connected to both sides of the first baffle via connecting shafts, a synchronous belt is sleeved on the outer side of the first synchronous wheel, and a second synchronous wheel is sleeved on one side of the synchronous belt.

[0013] Preferably, one side of the second synchronous wheel is fixedly connected to a driving gear, the outer side of the driving gear is meshingly connected to a driven gear, and one side of the driven gear is fixedly connected to a transmission shaft on one side of the detector body.

[0014] Preferably, a movable groove for sliding the clamping block is provided on one side of the first baffle, a spring is connected to one side of the clamping block, and one end of the spring is fixedly connected to the first baffle.

[0015] Compared with the prior art, the crack detector with a stable placement has the following beneficial effects: by pulling the handle, the rack rod is driven to engage with the transmission gear, and the transmission gear can drive two sets of worms to engage with two sets of worm wheels, so that the brackets on both sides of the base are unfolded to provide stable support for the crack detector, and the spring is squeezed by pulling the card block. When the card block is disengaged from the protective box, the first baffle can be rotated to close, and the detector body will also rotate synchronously and be retracted into the protective box.

[0016] 1. The crack detector can detect the width of cracks in bridges, tunnels, buildings, etc. When using the crack detector, in order to prevent the crack detector from tipping over after a collision, the handle is pulled to drive the rack rod to engage with the transmission gear, and the transmission gear can drive two sets of worms to engage with two sets of worm wheels, so that the brackets on both sides of the base are unfolded to stably support the crack detector. When the bracket needs to be folded, the handle is pushed to move it. When the handle moves, it can drive the bracket to reverse and fold. When the bracket is folded, the handle made of magnetic material will be attracted to the first magnet to prevent the handle from moving at will during the movement of the crack detector. In this way, the above operation can facilitate the support of the crack detector and make it stably placed.

[0017] 2. The crack detector can detect the width of cracks in bridges, tunnels, buildings, etc. After the detection is completed, the spring can be squeezed by pulling the card block. When the card block is disengaged from the protection box, the first baffle can be rotated to close, and the detector body will also be synchronously rotated and retracted into the protection box. When it is necessary to detect the ceiling, the second baffle can be opened by rotating, and the second magnet on one side of the second baffle will be disengaged from the first baffle. When the first baffle is opened, the detection probe can be used for detection. The above operation can facilitate the protection of the detector body and the detection probe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional schematic diagram of the utility model;

[0019] Figure 2 This is a three-dimensional cross-sectional schematic diagram of the base of the utility model;

[0020] Figure 3 This is a schematic diagram of the front cross-section of the base of the utility model;

[0021] Figure 4 This is a three-dimensional cross-sectional schematic diagram of the protection box of the utility model;

[0022] Figure 5 This is a three-dimensional schematic diagram of the first baffle of the utility model;

[0023] Figure 6 It is an enlarged schematic diagram of A of the present utility model.

[0024] In the figure: 1. base; 2. electric push rod; 3. connecting frame; 4. protection box; 5. detector body; 6. detection probe; 7. protection frame; 8. rack rod; 9. handle; 10. transmission gear; 11. connecting rod; 12. worm; 13. worm wheel; 14. bracket; 15. first magnet; 16. first baffle; 17. second baffle; 18. second magnet; 19. first synchronous wheel; 20. synchronous belt; 21. second synchronous wheel; 22. driving gear; 23. driven gear; 24. block; 25. spring. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] See also Figure 1-Figure 3The utility model provides a technical solution: a crack detector with stable placement, comprising: a base 1 and a worm gear 13, an electric push rod 2 is installed on the top of the base 1, a connecting frame 3 is fixedly connected to one side of the base 1, a protection box 4 is fixed on the top of the electric push rod 2, and the interior of the protection box 4 is movably connected to the transmission shafts on both sides of the detector body 5 through bearings,

[0027] A detection probe 6 is installed on the top of the detector body 5, and a protective frame 7 is installed on the top of the detector body 5; a sliding groove for a rack rod 8 to slide is opened inside the base 1, one side of the rack rod 8 is meshedly connected with a transmission gear 10, and the other side of the rack rod 8 is fixedly connected with a handle 9, and both sides of the transmission gear 10 are fixedly connected with connecting rods 11; the outer side of the connecting rod 11 is movably connected to the base 1 through a bearing, one end of the connecting rod 11 is fixedly connected to a worm 12, and the outer side of the worm 12 is meshedly connected with a worm wheel 13; the inside of the worm wheel 13 is fixedly connected with a bracket 14, and both sides of the bracket 14 are movably connected to the base 1 through a rotating shaft, and a first magnet 15 is fixed on the side of the base 1 close to the handle 9, the rack rod 8 and the transmission gear 10 constitute a meshing transmission structure, and the handle 9 is made of magnetic conductive material.

[0028] During specific implementation, the crack detector can detect the width of cracks in bridges, tunnels, buildings, etc. When using the crack detector, in order to prevent the crack detector from tipping over after being hit, the handle 9 is pulled to move. When the handle 9 moves, it will drive the rack rod 8 to mesh with the transmission gear 10, so that the transmission gear 10 rotates. The transmission gear 10 can drive two sets of worms 12 to mesh with two sets of worm wheels 13, and the worm wheels 13 will rotate. The rotation directions of the two sets of worms 12 and worm wheels 13 are opposite, so the two sets of brackets 14 can be driven to rotate and unfold synchronously until they come into contact with the ground. At this time, the brackets 14 unfolded on both sides of the base 1 can stably support the crack detector to prevent the crack detector from tipping over.

[0029] When the bracket 14 needs to be folded, the handle 9 is pushed to move it. When the handle 9 moves, it can drive the bracket 14 to reverse and fold. When the bracket 14 is folded, the handle 9 made of magnetic conductive material will be attracted to the first magnet 15 to prevent the handle 9 from moving at will during the movement of the crack detector. In this way, the above operation can facilitate the support of the crack detector and make it stably placed.

[0030] See also Figure 1 , Figure 4 , Figure 5 and Figure 6The top of the protection box 4 is movably connected to the connecting shafts on both sides of the first baffle 16 through a bearing, and the inside of the first baffle 16 is movably connected to the second baffle 17 through a rotating shaft, and a second magnet 18 is fixedly connected to one side of the second baffle 17; the first baffle 16 is fixedly connected to the first synchronous wheel 19 on both sides through the connecting shaft, the outer side of the first synchronous wheel 19 is sleeved with a synchronous belt 20, and one side of the synchronous belt 20 is sleeved with a second synchronous wheel 21; one side of the second synchronous wheel 21 is fixedly connected to a driving gear 22, and the outer side of the driving gear 22 is meshedly connected with a driven gear 23, and one side of the driven gear 23 is fixedly connected to the transmission shaft on one side of the detector body 5; a movable groove for sliding a card block 24 is opened on one side of the first baffle 16, and a spring 25 is connected to one side of the card block 24, and one end of the spring 25 is fixedly connected to the first baffle 16, the driving gear 22 and the driven gear 23 constitute a meshing transmission structure, and the card block 24 and the first baffle 16 constitute a sliding structure.

[0031] During specific implementation, the crack detector can detect the width of cracks in bridges, tunnels, buildings, etc. When the crack detector is used to detect a vertical wall, the first baffle 16 is opened by rotating, and the first baffle 16 drives the first synchronous wheel 19 to rotate. The first synchronous wheel 19 can drive the second synchronous wheel 21 to rotate through the synchronous belt 20, and the second synchronous wheel 21 can drive the driving gear 22 to mesh with the driven gear 23, so that the driven gear 23 is reversed, and the driven gear 23 can drive the detector body 5 to reverse as well. The inclined surface of the block 24 on one side of the first baffle 16 will move after contacting the protection box 4, and squeeze the spring 25 on one side. When the block 24 contacts the card slot inside the protection box 4, the block 24 will engage with the protection box 4 to fix the first baffle 16. The first baffle 16 is in a fully open state at this time, and the detector body 5 will also rotate 90° so that the detection probe 6 is aimed at the wall for detection;

[0032] After the detection is completed, the spring 25 can be squeezed by pulling the block 24. When the block 24 is disengaged from the protection box 4, the first baffle 16 can be rotated to close, and the detector body 5 will also be synchronously rotated and retracted into the protection box 4. When it is necessary to detect the ceiling, the second baffle 17 can be opened by rotating, and the second magnet 18 on one side of the second baffle 17 will be disengaged from the first baffle 16. When the first baffle 16 is opened, the detection probe 6 can be detected. In this way, the above operation can facilitate the protection of the detector body 5 and the detection probe 6.

[0033] To sum up: when using a crack detector with a stable placement, first push the connecting frame 3 to drive the base 1 to move. When it moves to the detection position, the wall can be detected through the detection probe 6 on one side of the detector body 5. The protective frame 7 can prevent the detection probe 6 from colliding with the wall. The detection probe 6 can scan and photograph the structure. When a crack exists, the propagation path of the light will change, thereby causing a change in the light signal. The position, length and shape of the crack can be determined by analyzing and comparing the scanned image. The electric push rod 2 can adjust the detection position. This is the feature of the crack detector with a stable placement. The content not described in detail in this description belongs to the prior art known to professional and technical personnel in this field.

[0034] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art may still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention shall be included in the protection scope of the present invention.

Claims

1. A crack detector with a stable placement, comprising: The invention relates to a base (1) and a worm gear (13), characterized in that an electric push rod (2) is installed on the top of the base (1), a connecting frame (3) is fixedly connected to one side of the base (1), a protection box (4) is fixed on the top of the electric push rod (2), and the interior of the protection box (4) is movably connected to the transmission shafts on both sides of the detector body (5) through bearings. A detection probe (6) is installed on the top of the detector body (5), and a protective frame (7) is installed on the top of the detector body (5).

2. A crack detector with stable placement according to claim 1, characterized in that: A sliding groove for sliding a rack rod (8) is provided inside the base (1); one side of the rack rod (8) is meshingly connected to a transmission gear (10); the other side of the rack rod (8) is fixedly connected to a handle (9); and both sides of the transmission gear (10) are fixedly connected to connecting rods (11).

3. A crack detector with stable placement according to claim 2, characterized in that: The outer side of the connecting rod (11) is movably connected to the base (1) via a bearing, one end of the connecting rod (11) is fixedly connected to a worm (12), and the outer side of the worm (12) is meshingly connected to a worm wheel (13).

4. A crack detector with stable placement according to claim 3, characterized in that: A bracket (14) is fixedly connected inside the worm gear (13), and two sides of the bracket (14) are movably connected to the base (1) via a rotating shaft. A first magnet (15) is fixed on one side of the base (1) close to the handle (9).

5. A crack detector with stable placement according to claim 1, characterized in that: The top of the protection box (4) is movably connected to the connecting shafts on both sides of the first baffle (16) via a bearing, the interior of the first baffle (16) is movably connected to the second baffle (17) via a rotating shaft, and one side of the second baffle (17) is fixedly connected to a second magnet (18).

6. A crack detector with stable placement according to claim 5, characterized in that: The first baffle (16) is fixedly connected to a first synchronous wheel (19) on both sides via a connecting shaft, a synchronous belt (20) is sleeved on the outer side of the first synchronous wheel (19), and a second synchronous wheel (21) is sleeved on one side of the synchronous belt (20).

7. A crack detector with stable placement according to claim 6, characterized in that: One side of the second synchronous wheel (21) is fixedly connected to a driving gear (22), the outer side of the driving gear (22) is meshingly connected to a driven gear (23), and one side of the driven gear (23) is fixedly connected to a transmission shaft on one side of the detector body (5).

8. A crack detector with stable placement according to claim 7, characterized in that: A movable groove for sliding a clamping block (24) is provided on one side of the first baffle plate (16), a spring (25) is connected to one side of the clamping block (24), and one end of the spring (25) is fixedly connected to the first baffle plate (16).

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