阅读说明：本技术 混凝土护栏的裂缝自动探伤设备及其使用方法 (Automatic crack detection equipment for concrete guardrail and application method thereof ) 是由 朱街禄 彭小英 于 2019-11-04 设计创作，主要内容包括：本发明公开了混凝土护栏的裂缝自动探伤设备及其使用方法,混凝土护栏的裂缝自动探伤设备包括柜体和遮挡机构,柜体的前端安装有柜门,且柜门的前端安装有水平尺,柜体的内部设置有平衡机构,且平衡机构的上方安装有内架,内架的内部设置有高度调节机构,且高度调节机构的上方安装有支柱,柜体的上方安装有框架,且框架的内部设置有探测机构,遮挡机构位于框架的上方。该混凝土护栏的裂缝自动探伤设备及其使用方法设置有高度调节机构,直线丝杆电机通过丝杆推动导块沿内架的竖直中心线方向上下移动,而导块与横板之间为螺纹连接,从而能够有效的调节横板所处的位置,调节设备的高度。(The invention discloses automatic crack detection equipment for a concrete guardrail and a using method thereof. The automatic crack flaw detection equipment for the concrete guardrail and the using method of the automatic crack flaw detection equipment are provided with the height adjusting mechanism, the linear screw rod motor pushes the guide block to move up and down along the vertical central line direction of the inner frame through the screw rod, and the guide block is in threaded connection with the transverse plate, so that the position of the transverse plate can be effectively adjusted, and the height of the equipment is adjusted.)

1. The utility model provides a crack automatic flaw detection equipment of concrete guardrail, includes the cabinet body (1) and shelters from mechanism (10), its characterized in that: cabinet door (2) are installed to the front end of the cabinet body (1) level (3) are installed to the front end of cabinet door (2), the inside of the cabinet body (1) is provided with balance mechanism (4), interior frame (5) are installed to the top of balance mechanism (4), the inside of interior frame (5) is provided with height adjusting mechanism (6), pillar (7) are installed to the top of height adjusting mechanism (6), frame (8) are installed to the top of the cabinet body (1), the inside of frame (8) is provided with detection mechanism (9), it is located to shelter from mechanism (10) the top of frame (8).

2. The automatic crack flaw detection apparatus for a concrete fence according to claim 1, characterized in that: the cabinet body (1) with be articulated between cabinet door (2), just cabinet door (2) with be threaded connection between level bar (3), cabinet door (2) with all follow between level bar (3) the vertical central line symmetric distribution of the cabinet body (1).

3. The automatic crack flaw detection apparatus for a concrete fence according to claim 1, characterized in that: the balance mechanism (4) comprises a guide groove (401), hydraulic oil cylinders (402) and balance blocks (403), the hydraulic oil cylinders (402) are arranged on the left side and the right side of the interior of the guide groove (401), and the balance blocks (403) are installed on one sides, away from the vertical center line of the guide groove (401), of the hydraulic oil cylinders (402).

4. The automatic crack flaw detection apparatus for a concrete fence according to claim 3, wherein: the hydraulic oil cylinders (402) and the balance blocks (403) are symmetrically distributed along the vertical central line of the guide groove (401), and the hydraulic oil cylinders (402) are connected with the balance blocks (403).

5. The automatic crack flaw detection apparatus for a concrete fence according to claim 1, characterized in that: height adjustment mechanism (6) are including diaphragm (601), guide block (602), lead screw (603) and linear screw motor (604), all install the left and right sides of diaphragm (601) guide block (602), lead screw (603) has been run through to the inside of guide block (602), install the top of lead screw (603) linear screw motor (604).

6. The automatic crack flaw detection apparatus for a concrete fence according to claim 5, wherein: the guide block (602), the screw rod (603) and the linear screw rod motor (604) are symmetrically distributed along the vertical central line of the transverse plate (601), and the screw rod (603) penetrates through the guide block (602).

7. The automatic crack flaw detection apparatus for a concrete fence according to claim 1, characterized in that: the detection mechanism (9) comprises a driven gear (901), an adjusting gear (902), a partition plate (903), a connecting column (904), a servo motor (905), a miniature hydraulic oil cylinder (906), a connecting pin (907) and a camera (908), wherein the adjusting gear (902) is installed on one side of the driven gear (901), the partition plate (903) is installed above the adjusting gear (902), the connecting column (904) is installed above the partition plate (903), the servo motor (905) is installed on one side of the connecting column (904), the miniature hydraulic oil cylinder (906) is installed on the other side of the connecting column (904), the camera (908) is installed above the miniature hydraulic oil cylinder (906), and the connecting pin (907) penetrates through the inside of the upper portion of the connecting column (904).

8. The automatic crack flaw detection apparatus for a concrete fence according to claim 7, wherein: the driven gear (901) is in threaded connection with the connecting column (904), the connecting column (904) forms meshing transmission with the servo motor (905) through matching between the driven gear (901) and the adjusting gear (902), and the connecting column (904) forms a rotating structure with the camera (908) through matching between the micro hydraulic oil cylinder (906) and the connecting pin (907).

9. The automatic crack flaw detection apparatus for a concrete fence according to claim 1, characterized in that: shelter from mechanism (10) including fore-set (1001), regulation hydraulic cylinder (1002), locating pin (1003), sunshade (1004) and photovoltaic board (1005), locating pin (1003) have been run through to the top of fore-set (1001) inside, regulation hydraulic cylinder (1002) are all installed to the left and right sides of fore-set (1001), install the top of adjusting hydraulic cylinder (1002) sunshade (1004), install the top of sunshade (1004) photovoltaic board (1005), fore-set (1001) through adjusting hydraulic cylinder (1002) with cooperation between locating pin (1003) with sunshade (1004) constitute revolution mechanic, sunshade (1004) with be threaded connection between photovoltaic board (1005).

10. A method for using the automatic crack inspection apparatus for a concrete guardrail according to any one of claims 1 to 9, wherein: the use method of the automatic crack flaw detection equipment for the concrete guardrail comprises the following steps:

s1: the protective plate (1004) is pulled to rotate along the outer part of the positioning pin (1003) by adjusting the hydraulic oil cylinder (1002), the protective plate (1004) is adjusted to a proper angle according to the crack measurement requirement of the concrete guardrail, and dust or light is shielded;

s2: measuring the horizontal state of the equipment through a horizontal ruler (3), and then pushing a balance block (403) to move along the horizontal center line direction of a guide groove (401) through a hydraulic oil cylinder (402) so that the equipment is in the horizontal state;

s3: the linear screw motor (604) pushes the guide block (602) to move through the screw (603), and the guide block (602) is in threaded connection with the transverse plate (601), so that the transverse plate (601) pushes the strut (7) to adjust the height of the equipment until the camera (908) is adjusted to a proper position;

s4: the servo motor (905) drives the connecting column (904) to rotate through the matching between the driven gear (901) and the adjusting gear (902), so that the camera (908) synchronously rotates along with the driven gear (901), and then the camera (908) is pulled along the outside of the connecting pin (907) through the miniature hydraulic oil cylinder (906), so that the camera (908) can effectively record objects outside the equipment, and the crack of the concrete guardrail is measured.

Technical Field

The invention relates to the technical field of automatic crack detection of concrete guardrails, in particular to automatic crack detection equipment of a concrete guardrail and a using method thereof.

Background

In the main road section of the urban road, the phenomena of free transverse street crossing of pedestrians, free turning of vehicles, lane running by means of objects and the like are common, so that a road traffic isolation guardrail is generally arranged in a central road division zone to prevent the pedestrians from crossing the road, and to warn and force the vehicles to run in different ways, so that the road traffic can be ensured to be safe, smooth and orderly, meanwhile, a certain protection effect can be achieved, and if the concrete guardrail generates cracks, the protection effect of the concrete guardrail is easily influenced.

When the existing automatic flaw detection equipment detects cracks of a concrete guardrail, the automatic flaw detection equipment is prone to toppling due to the deviation of the automatic flaw detection equipment, internal components of the equipment are prone to being damaged, the height of a detection mechanism is inconvenient to adjust, the detection range of the equipment is relatively fixed, and external rainwater or light easily influences the detection effect of the equipment.

Disclosure of Invention

Aiming at the defects of the prior art, the invention provides automatic crack detection equipment for a concrete guardrail and a use method thereof, and solves the problems that when the existing automatic crack detection equipment is used for detecting cracks of the concrete guardrail, the automatic crack detection equipment is prone to toppling due to the deflection of the automatic crack detection equipment, internal components of the equipment are prone to damage, the height of a detection mechanism is inconvenient to adjust, the detection range of the equipment is relatively fixed, and the detection effect of the equipment is prone to being influenced by external rainwater or light.

In order to achieve the purpose, the invention is realized by the following technical scheme: automatic crack flaw detection equipment for concrete guardrails and use method thereof comprise a cabinet body and a shielding mechanism, wherein a cabinet door is installed at the front end of the cabinet body, a level bar is installed at the front end of the cabinet door, a balance mechanism is arranged inside the cabinet body, an inner frame is installed above the balance mechanism, a height adjusting mechanism is arranged inside the inner frame, a support column is installed above the height adjusting mechanism, a frame is installed above the cabinet body, a detection mechanism is arranged inside the frame, and the shielding mechanism is located above the frame.

Optionally, the cabinet body is hinged to the cabinet door, the cabinet door is in threaded connection with the horizontal ruler, and the cabinet door and the horizontal ruler are symmetrically distributed about a vertical central line of the cabinet body.

Optionally, the balancing mechanism comprises a guide groove, a hydraulic oil cylinder and a balancing block, the hydraulic oil cylinder is arranged on the left side and the right side inside the guide groove, and the balancing block is installed on one side, away from the vertical center line of the guide groove, of the hydraulic oil cylinder.

Optionally, the hydraulic oil cylinders and the balance blocks are symmetrically distributed about a vertical center line of the guide groove, and the hydraulic oil cylinders are connected with the balance blocks.

Optionally, the height adjusting mechanism comprises a transverse plate, guide blocks, a screw rod and a linear screw rod motor, the guide blocks are installed on the left side and the right side of the transverse plate, the screw rod penetrates through the guide blocks, and the linear screw rod motor is installed above the screw rod.

Optionally, the guide block, the lead screw and the linear lead screw motor are symmetrically distributed about a vertical center line of the transverse plate, and the lead screw penetrates through the guide block.

Optionally, the detection mechanism includes driven gear, adjusting gear, baffle, spliced pole, servo motor, miniature hydraulic cylinder, connecting pin and camera, adjusting gear is installed to one side of driven gear, and installs the baffle above the adjusting gear, the spliced pole is installed to the top of baffle, and one side of spliced pole installs servo motor, miniature hydraulic cylinder is installed to the opposite side of spliced pole, and miniature hydraulic cylinder's top installs the camera, the inside connecting pin that runs through in top of spliced pole.

Optionally, the driven gear is in threaded connection with the connecting column, the connecting column is in meshing transmission with the servo motor through matching between the driven gear and the adjusting gear, and the connecting column forms a rotating structure with the camera through matching between the micro hydraulic cylinder and the connecting pin.

Optionally, shelter from the mechanism and include the fore-set, adjust hydraulic cylinder, locating pin, sunshade and photovoltaic board, the inside locating pin that runs through in top of fore-set, the left and right sides of fore-set all installs the regulation hydraulic cylinder, and the top of just adjusting hydraulic cylinder installs the sunshade, the photovoltaic board is installed to the top of sunshade, the fore-set constitutes revolution mechanic with the sunshade through the cooperation of adjusting between hydraulic cylinder and the locating pin, and is threaded connection between sunshade and the photovoltaic board.

Optionally, the use method of the automatic crack detection device for the concrete guardrail comprises the following steps:

s1: the curtain plate is pulled to rotate along the outer part of the positioning pin by adjusting the hydraulic oil cylinder, and is adjusted to a proper angle according to the crack measurement requirement of the concrete guardrail, so that the dust or light is shielded;

s2: measuring the horizontal state of the equipment through a horizontal ruler, and then pushing a balance block to move along the horizontal center line direction of a guide groove through a hydraulic oil cylinder to enable the equipment to be in the horizontal state;

s3: the linear screw motor pushes the guide block to move through the screw, and the guide block is in threaded connection with the transverse plate, so that the transverse plate pushes the support to adjust the height of the equipment until the camera is adjusted to a proper position;

s4: the servo motor drives the connecting column to rotate through the matching between the driven gear and the adjusting gear, so that the camera rotates synchronously along with the driven gear, then the camera is pulled along the outer part of the connecting pin through the miniature hydraulic oil cylinder, and the camera can effectively record objects outside the equipment and measure the cracks of the concrete guardrail.

The invention provides automatic crack flaw detection equipment for a concrete guardrail and a using method thereof, and the automatic crack flaw detection equipment has the following beneficial effects:

1. the automatic crack flaw detection equipment for the concrete guardrail and the use method of the automatic crack flaw detection equipment are provided with the level ruler, the state of the cabinet body can be effectively measured through the level ruler, the condition that the cabinet body is excessively inclined, equipment is prevented from falling down, equipment components are damaged, and the state of the cabinet body is convenient to adjust.

2. The automatic crack flaw detection equipment for the concrete guardrail and the using method thereof are provided with the balance mechanism, and the hydraulic oil cylinder pushes the balance blocks to move along the horizontal central line direction of the guide groove, so that the balance blocks are mutually far away until the state measured by the level ruler is in a horizontal state.

3. The automatic crack flaw detection equipment for the concrete guardrail and the using method of the automatic crack flaw detection equipment are provided with the height adjusting mechanism, the linear screw rod motor pushes the guide block to move up and down along the vertical central line direction of the inner frame through the screw rod, the guide block is in threaded connection with the transverse plate, so that the position of the transverse plate can be effectively adjusted, the supporting column can be pushed to move, and the height of the equipment can be effectively adjusted.

4. This automatic crack detection equipment of concrete guardrail and application method thereof is provided with detection mechanism, servo motor promotes driven gear through adjusting gear and rotates, make synchronous rotation between driven gear and the spliced pole, thereby can effectually drive the camera and rotate, change the angle of camera, and can the effectual recording range that increases the camera, and under miniature hydraulic cylinder's effect, can pull the outside rotation of camera along the connecting pin, thereby can the effectual height that the concrete guardrail can be recorded to the regulation camera, the scope that can the effectual improvement camera can be surveyed.

5. The automatic crack flaw detection equipment for the concrete guardrail and the using method of the automatic crack flaw detection equipment are provided with the shielding mechanism, the hydraulic oil cylinder is adjusted to adjust the shielding plate to a proper angle according to the detection requirement of the equipment on the concrete guardrail, so that the shielding plate can effectively shield rainwater or light, rainwater erosion of components of the equipment is avoided, the action precision of the camera can be effectively improved, and the photovoltaic plate can effectively adsorb solar energy.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

FIG. 3 is an enlarged view of a portion of FIG. 1;

FIG. 4 is an enlarged view of a portion of FIG. 1 at B according to the present invention;

FIG. 5 is an enlarged view of a portion of the structure shown at C in FIG. 1.

In the figure: 1. a cabinet body; 2. a cabinet door; 3. a level bar; 4. a balancing mechanism; 401. a guide groove; 402. a hydraulic cylinder; 403. a counterbalance; 5. an inner frame; 6. a height adjustment mechanism; 601. a transverse plate; 602. a guide block; 603. a screw rod; 604. a linear screw motor; 7. a pillar; 8. a frame; 9. a detection mechanism; 901. a driven gear; 902. an adjusting gear; 903. a partition plate; 904. connecting columns; 905. a servo motor; 906. a miniature hydraulic cylinder; 907. a connecting pin; 908. a camera; 10. a shielding mechanism; 1001. a top pillar; 1002. adjusting a hydraulic oil cylinder; 1003. positioning pins; 1004. a shutter; 1005. a photovoltaic panel.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, should not be construed as limiting the invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1 to 5, the present invention provides a technical solution: the automatic crack flaw detection equipment for the concrete guardrail and the using method thereof comprise a cabinet body 1 and a shielding mechanism 10, wherein a cabinet door 2 is installed at the front end of the cabinet body 1, a horizontal ruler 3 is installed at the front end of the cabinet door 2, the cabinet body 1 is hinged with the cabinet door 2, the cabinet door 2 is in threaded connection with the horizontal ruler 3, the cabinet door 2 and the horizontal ruler 3 are symmetrically distributed about a vertical central line of the cabinet body 1, the state of the cabinet body 1 can be effectively measured through the horizontal ruler 3, the condition that the cabinet body 1 is excessively inclined to cause equipment to fall down is avoided, equipment components are damaged, and the state of the cabinet body 1 is conveniently adjusted;

a balance mechanism 4 is arranged inside the cabinet body 1, an inner frame 5 is arranged above the balance mechanism 4, the balance mechanism 4 comprises a guide groove 401, hydraulic oil cylinders 402 and balance blocks 403, the hydraulic oil cylinders 402 are arranged on the left side and the right side inside the guide groove 401, the balance blocks 403 are arranged on one sides, away from the vertical center line of the guide groove 401, of the hydraulic oil cylinders 402, the hydraulic oil cylinders 402 and the balance blocks 403 are symmetrically distributed around the vertical center line of the guide groove 401, the hydraulic oil cylinders 402 are connected with the balance blocks 403, the hydraulic oil cylinders 402 are started, the balance blocks 403 are pushed by the hydraulic oil cylinders 402 to move along the horizontal center line of the guide groove 401, the balance blocks 403 are far away from each other until the state measured by the leveling rod 3 is;

the inner part of the inner frame 5 is provided with a height adjusting mechanism 6, a support post 7 is arranged above the height adjusting mechanism 6, the height adjusting mechanism 6 comprises a transverse plate 601, guide blocks 602, a screw 603 and a linear screw motor 604, the guide blocks 602 are arranged at the left side and the right side of the transverse plate 601, a screw 603 penetrates through the guide block 602, a linear screw motor 604 is arranged above the screw 603, the guide block 602, the screw 603 and the linear screw motor 604 are symmetrically distributed about the vertical center line of the transverse plate 601, the screw 603 penetrates through the guide block 602, under the action of the linear screw motor 604, the guide block 602 is pushed by the screw 603 to move up and down along the vertical central line direction of the inner frame 5, and the guide block 602 is in threaded connection with the transverse plate 601, therefore, the position of the transverse plate 601 can be effectively adjusted, at the moment, the support 7 can be pushed to move, and the height of the equipment can be effectively adjusted;

a frame 8 is installed above the cabinet body 1, a detection mechanism 9 is arranged inside the frame 8, the detection mechanism 9 comprises a driven gear 901, an adjusting gear 902, a partition plate 903, a connecting column 904, a servo motor 905, a micro hydraulic oil cylinder 906, a connecting pin 907 and a camera 908, the adjusting gear 902 is installed on one side of the driven gear 901, the partition plate 903 is installed above the adjusting gear 902, the connecting column 904 is installed above the partition plate 903, the servo motor 905 is installed on one side of the connecting column 904, the micro hydraulic oil cylinder 906 is installed on the other side of the connecting column 904, the camera 908 is installed above the micro hydraulic oil cylinder 906, the connecting pin 907 penetrates through the inside of the upper portion of the connecting column 904, the driven gear 901 is in threaded connection with the connecting column 904, the connecting column 904 forms meshing transmission with the servo motor 905 through the matching between the driven gear 901 and the adjusting gear 902, and the connecting column 904 forms a rotary joint with the camera 908 Under the action of a servo motor 905, a driven gear 901 is pushed to rotate through an adjusting gear 902, the driven gear 901 is in threaded connection with a connecting column 904, the driven gear 901 and the connecting column 904 synchronously rotate, so that a camera 908 can be effectively driven to rotate, the angle of the camera 908 can be changed, the recording range of the camera 908 can be effectively enlarged, one side of a micro hydraulic cylinder 906 is connected with the connecting column 904, the other side of the micro hydraulic cylinder 906 is connected with the camera 908, the camera 908 can be pulled to rotate along the outer part of the connecting pin 907 under the action of the micro hydraulic cylinder 906, the height of a concrete guardrail which can be recorded by the camera 908 can be effectively adjusted, and the detection range of the camera 908 can be effectively enlarged;

the shielding mechanism 10 is positioned above the frame 8, the shielding mechanism 10 comprises a top column 1001, an adjusting hydraulic oil cylinder 1002, a positioning pin 1003, a shielding plate 1004 and a photovoltaic plate 1005, the positioning pin 1003 penetrates through the upper part of the top column 1001, the adjusting hydraulic oil cylinder 1002 is installed on the left side and the right side of the top column 1001, the shielding plate 1004 is installed above the adjusting hydraulic oil cylinder 1002, the photovoltaic plate 1005 is installed above the shielding plate 1004, the top column 1001 and the shielding plate 1004 form a rotating structure through the matching between the adjusting hydraulic oil cylinder 1002 and the positioning pin 1003, the shielding plate 1004 is in threaded connection with the photovoltaic plate 1005, one side of the adjusting hydraulic oil cylinder 1002 is connected with the top column 1001, the other side of the adjusting hydraulic oil cylinder 1002 is connected with the shielding plate 1004, under the action of the adjusting hydraulic oil cylinder 1002, the shielding plate 1004 can be pulled to rotate along the outer part of the positioning pin 1003, the shielding plate 1004 is adjusted to a proper angle according to the detection requirement, the shielding plate 1004 can effectively shield rainwater or light rays, so that the rainwater is prevented from corroding the components of the equipment, the acting precision of the camera 908 can be effectively improved, and the photovoltaic panel 1005 can effectively absorb solar energy;

the use method of the automatic crack flaw detection equipment for the concrete guardrail comprises the following steps:

s1: the cover plate 1004 is pulled to rotate along the outer part of the positioning pin 1003 by adjusting the hydraulic oil cylinder 1002, the cover plate 1004 is adjusted to a proper angle according to the crack measurement requirement of the concrete guardrail, and dust or light is shielded;

s2: measuring the horizontal state of the equipment by using the horizontal ruler 3, and then pushing the balance block 403 to move along the horizontal center line direction of the guide groove 401 by using the hydraulic oil cylinder 402 so as to enable the equipment to be in the horizontal state;

s3: the linear screw motor 604 pushes the guide block 602 to move through the screw 603, and the guide block 602 is in threaded connection with the transverse plate 601, so that the transverse plate 601 pushes the strut 7 to adjust the height of the device until the camera 908 is adjusted to a proper position;

s4: the servo motor 905 drives the connecting column 904 to rotate through the matching between the driven gear 901 and the adjusting gear 902, so that the camera 908 synchronously rotates along with the driven gear 901, and then the camera 908 is pulled through the micro hydraulic oil cylinder 906 along the outside of the connecting pin 907, so that the camera 908 can effectively record objects outside the equipment, and the cracks of the concrete guardrail are measured.

In conclusion, when the automatic crack detection equipment for the concrete guardrail and the using method thereof are used, the adjusting hydraulic cylinder 1002 is started according to the detection requirement of the equipment on the concrete guardrail, so that the adjusting hydraulic cylinder 1002 pulls the shielding plate 1004 to rotate along the outer part of the positioning pin 1003 until the shielding plate 1004 is adjusted to a proper angle, wherein the model of the adjusting hydraulic cylinder 1002 is CDJ2D 10;

secondly, measuring the state of the cabinet body 1 through the level bar 3, then starting the hydraulic cylinder 402, enabling the hydraulic cylinder 402 to push the balance block 403 to move along the horizontal central line direction of the guide groove 401 until the state measured by the level bar 3 is horizontal, wherein the model of the hydraulic cylinder 402 is MOB30, then starting the linear lead screw motor 604, enabling the linear lead screw motor 604 to push the guide block 602 to move along the vertical central line direction of the inner frame 5 through the lead screw 603, the guide block 602 is in threaded connection with the transverse plate 601, and the support column 7 can be pushed to move the camera 908 to a proper height, wherein the model of the linear lead screw motor 604 is FSL 40;

then, a servo motor 905 is started, the driven gear 901 is pushed to rotate through the adjusting gear 902, the driven gear 901 is in threaded connection with the connecting column 904, the driven gear 901 rotates synchronously with the connecting column 904, the angle of the camera 908 is changed, and the camera 908 records cracks of the concrete guardrail, wherein the type of the servo motor 905 is PLX.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical scope of the present invention and the equivalent alternatives or modifications according to the technical solution and the inventive concept of the present invention within the technical scope of the present invention.