Equipment for bridge crack detection

Abstract

The invention discloses equipment for bridge crack detection, which comprises a moving box, a detector main body is arranged at the top of the moving box, a detection head is arranged in the moving box, the moving box is provided with a storage mechanism for carrying out external enclosure on the detection head, and a positioning mechanism for locking the storage position of the detection head is arranged at the side part of the storage mechanism. A shielding mechanism is arranged at the bottom of the storage mechanism, a limiting mechanism is arranged on the side portion of the storage mechanism, and a supporting mechanism is arranged at the top of the storage mechanism. By means of the arrangement mode that the connecting frame, the shielding plate, the moving plate, the auxiliary plate, a traction rod, a first spring, a limiting mechanism and a storage mechanism are matched, the limiting mechanism limits the position, away from the storage bottom, of the shielding plate, the storage mechanism and the shielding plate shield the outside of the detection head, and therefore when the detection head is stored, the detection head can be conveniently taken out. And the limiting mechanism relieves position limitation on the shielding plate, so that the shielding plate shields and protects the bottom of the maintenance head.

Description

Technical Field

[0001] The invention relates to the technical field of bridge detection equipment, and in particular to equipment for detecting cracks in bridges. Background Art

[0002] A bridge usually refers to a structure built across rivers, lakes, and the sea to allow vehicles and pedestrians to pass smoothly. A bridge usually includes a superstructure, a substructure, supports, and ancillary structures. A bridge can usually provide a passage for roads to cross natural or artificial obstacles to ensure that vehicles and pedestrians can pass smoothly. After a bridge has been used for a long time, cracks may appear on the bridge. The degree of cracking needs to be tested, and bridge crack detection equipment will be used.

[0003] The bridge crack detection equipment in the prior art usually includes a mobile box, a detection head, a detection instrument body and a connecting line. The detection instrument body is connected to the detection head through a connecting line. The detection head is fixed to the bottom of the mobile box. Then, as the mobile box moves, the detection head approaches the bridge crack and follows the movement, thereby performing a detection operation on the bridge crack.

[0004] However, the detection head is located at the bottom of the mobile box and is usually exposed. When it is moved without passing through the cracks of the bridge, the moving box may press water or stones on the detection head, causing the water or stones to splash onto the detection head, affecting the safety of the detection head. As a result, it is inconvenient for the bridge crack detection equipment to shield and protect the detection head when the mobile box is moved to the designated position. Summary of the invention

[0005] The object of the present invention is to provide a device for detecting bridge cracks to solve the problems raised in the above background technology.

[0006] To achieve the above object, the present invention provides the following technical solution: a device for detecting bridge cracks, comprising: A mobile box, a detector body is arranged on the top of the mobile box, and a detection head is arranged inside the mobile box; The mobile box is provided with a storage mechanism for externally enclosing the detection head, a positioning mechanism for locking the storage position of the detection head is provided on the side of the storage mechanism, a shielding mechanism for shielding the bottom of the detection head is provided on the bottom of the storage mechanism, a limiting mechanism for locking the storage position of the shielding mechanism is provided on the side of the storage mechanism, a supporting mechanism for taking out the detection head is provided on the top of the storage mechanism, and the shielding mechanism includes a connecting frame and a shielding plate, the shielding plate is located at the bottom of the connecting frame, and the shielding plate is used to slide and shield the bottom of the storage mechanism.

[0007] Preferably, the shielding mechanism further includes: A movable plate, the bottom end of which is fixedly connected to the shielding plate, and the movable plate is located inside the connecting frame; An auxiliary plate, the side of which is fixedly connected to the movable plate, the inner wall of the connecting frame is provided with a first sliding groove, the auxiliary plate is slidably connected with the inner cavity of the first sliding groove, and the top of the connecting frame is provided with a second sliding groove; A traction rod, the end of which is fixedly connected to the movable plate, the outer wall of the traction rod is slidably and interlacedly connected to the side of the inner wall of the connecting frame, the outer sleeve of the traction rod is provided with a first spring for driving the movable plate to slide horizontally, one end of the first spring is fixedly connected to the movable plate, and the other end of the first spring is fixedly connected to the inner wall of the connecting frame.

[0008] Preferably, the limiting mechanism comprises: A sliding plate, the bottom end of which is fixedly connected to a limiting plate, and the limiting plate is slidably interlaced with the inner cavity of the second sliding groove; A load-bearing plate, a side of which is fixedly connected with an interleaving plate, a top of which is fixedly connected with a load-bearing frame, and a top of which is provided with a first through slot; An auxiliary rod, the outer wall of which is slidably interlaced with the bearing plate, and the outer thread of the auxiliary rod is interlaced with a locking ring; a second spring, wherein one end of the second spring is in contact with the bearing plate, and the other end of the second spring is in contact with the sliding plate; The bearing seat is located inside the bearing frame, the insertion plate is slidably inserted and connected with the inner cavity of the bearing seat, a second through groove is opened at the top of the bearing seat, and a third through groove is opened at the top of the insertion plate.

[0009] Preferably, the positioning mechanism comprises: A support frame, wherein a movable column is slidably arranged inside the support frame, and a positioning plate is fixedly connected to the side of the movable column; A guide frame, wherein the guide frame is slidably interlaced with the inner cavity of the support frame, the top and bottom ends of the guide frame are both threadedly interlaced with locking bolts, and one end of the locking bolt is threadedly interlaced with the guide frame; A connecting rod, wherein the connecting rod is slidably and interlacedly connected with the inner cavity of the guide frame, one end of the connecting rod is threadedly and interlacedly connected with the movable column, the outer sleeve of the connecting rod is provided with a third spring for driving the movable column to slide horizontally, one end of the third spring is in contact with the movable column, and the other end of the third spring is in contact with the guide frame.

[0010] Preferably, the storage mechanism comprises: A storage frame, wherein the storage frame is fixedly connected to the interior of the mobile box, the detection head is slidably connected to the inner cavity of the storage frame, the side of the storage frame is fixedly connected to the bearing seat, the side of the storage frame is provided with a third slide groove matched with the sliding plate, the side of the storage frame is fixedly connected to the connecting frame, the side of the storage frame is fixedly connected to the supporting frame, and the side of the storage frame is provided with a fourth slide groove matched with the positioning plate; A sliding plate, the side of which is fixedly connected to the detection head, the inner wall of the storage frame is provided with a guide groove, the sliding plate is slidably inserted and connected with the inner cavity of the guide groove, and a positioning groove matching with the positioning plate is provided on the side of one of the sliding plates.

[0011] Preferably, the storage mechanism further comprises: a fourth spring, one end of which is in contact with the detection head, and the other end of which is in contact with the support mechanism; A pushing column, the bottom end of which is fixedly connected to one of the sliding plates, and the pushing column is used to push the sliding plate to move vertically so that the limiting plate is separated from the connecting frame.

[0012] Preferably, the bottom end of the sliding plate is fixedly connected to a supporting plate, and a ground ring is fixedly connected between adjacent supporting plates. A plurality of spherical grooves are opened at the bottom end of the ground ring, and balls are embedded in the inner cavity of the spherical grooves. The bottom of the detection head is located inside the ground ring.

[0013] Preferably, the supporting mechanism comprises: An annular plate, wherein the bottom end of the annular plate is symmetrically fixedly connected with a connecting plate, wherein one of the connecting plates is slidably interlaced with the inner cavities of the first through groove, the second through groove and the third through groove; A fixing plate, the bottom end of which is fixedly connected to the receiving frame, a mounting groove is symmetrically provided at the bottom end of the annular plate, the fixing plate is slidably inserted and connected with the inner cavity of the mounting groove, a fourth through groove is provided on the side of the annular plate, a clamping groove is provided on the side of the fixing plate, and a mounting frame is fixedly connected to the side of the annular plate; A locking plate is slidably and interlacedly connected with the inner cavities of the fourth through slot and the card slot, and the side of the locking plate is fixedly connected with an auxiliary frame.

[0014] Preferably, a limiting rod is slidingly provided in the inner cavity of the auxiliary frame, the limiting rod is slidably inserted and connected with the inner cavity of the mounting frame, the outer wall of the limiting rod is slidably inserted and connected with the top end of the inner wall of the auxiliary frame, the side of the limiting rod is fixedly connected with an operating plate, the bottom of the auxiliary frame is slidably provided with an oriented frame, the bottom of the oriented frame is threadedly inserted and connected with a positioning bolt, one end of the positioning bolt is threadedly inserted and connected with the auxiliary frame, the outer sleeve of the limiting rod is provided with a fifth spring, one end of the fifth spring is fixedly connected to the operating plate, and the other end of the fifth spring is fixedly connected to the oriented frame.

[0015] Preferably, a square groove is opened on the side of the moving box, an inspection plate is slidably provided inside the square groove, an assembly plate is symmetrically fixedly connected to the top of the moving box, and a protective frame is slidably and interlacedly connected to the outside of the assembly plate.

[0016] Technical effects and advantages of the present invention: The present invention utilizes a setting mode in which a connecting frame, a shielding plate, a movable plate, an auxiliary plate, a traction rod, a first spring, a limiting mechanism and a storage mechanism cooperate with each other. The movable plate and the auxiliary plate drive the shielding plate to move. The elastic force of the first spring pushes the movable plate to move. The limiting mechanism limits the position of the shielding plate away from the storage bottom. The storage mechanism and the shielding plate perform external shielding on the detection head, which is beneficial for the limiting mechanism to release the position limit of the shielding plate when the detection head is stored, so that the shielding plate performs bottom shielding protection on the inspection head. The present invention utilizes a configuration method in which a support frame, a moving column, a positioning plate, a connecting rod, a guide frame and a third spring cooperate with each other. The connecting rod drives the moving column and the positioning plate to move. The elastic force of the third spring pushes the moving column to move. The positioning plate limits the position of the sliding plate, which is beneficial for limiting the detection head when the detection head is stored in the storage frame. The present invention utilizes the mutual cooperation of the pushing column, the sliding plate, the limiting plate, the bearing plate, the auxiliary rod, the second spring, the bearing seat, the interlaced plate and the bearing frame. When the detection head is stored, the pushing column pushes the sliding plate to move, so that the sliding plate drives the limiting plate to separate from the connecting frame, which is beneficial for the shielding plate to automatically slide when the detection head is stored, so as to shield the bottom of the storage frame; The present invention utilizes a storage frame, a sliding plate, a fourth spring, a supporting plate, a ground-contacting ring and a ball bearing to cooperate with each other. The elastic force of the fourth spring pushes the detection head to move, so that the detection head drives the ground-contacting ring and the ball bearing to fit with the bridge, and then the detection head moves along the crack of the bridge as the moving box moves. The present invention utilizes a setting method in which an annular plate, a connecting plate, a fixed plate, a locking plate and an auxiliary frame are coordinated. The annular plate compresses the fourth spring, the fixed plate limits the position of the bearing seat, the bearing frame and the insertion plate, and the locking plate limits the position of the fixed plate and the annular plate. This facilitates the disassembly of the sliding plate while the annular plate is disassembled, making it easy to remove the detection head for maintenance and convenient operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention.

[0018] Figure 2 It is a schematic diagram of the front structure of the present invention.

[0019] Figure 3 It is a front cross-sectional structural schematic diagram of the present invention.

[0020] Figure 4 It is a front cross-sectional structural schematic diagram of the storage frame of the present invention.

[0021] Figure 5 It is a front cross-sectional structural schematic diagram of the auxiliary frame of the present invention.

[0022] Figure 6 It is a front cross-sectional structural schematic diagram of the bearing seat of the present invention.

[0023] Figure 7 It is a front cross-sectional structural schematic diagram of the connection frame of the present invention.

[0024] Figure 8 It is a front cross-sectional structural schematic diagram of the support frame of the present invention.

[0025] In the figure: 1, moving box; 2, detector body; 3, detection head; 4, positioning mechanism; 41, support frame; 42, moving column; 43, positioning plate; 44, connecting rod; 45, guide frame; 46, third spring; 5, limiting mechanism; 51, sliding plate; 52, limiting plate; 53, bearing plate; 54, auxiliary rod; 55, second spring; 56, bearing seat; 57, interleaving plate; 58, bearing frame; 6, shielding mechanism; 61, connecting frame; 62, shielding plate; 63, Movable plate; 64, auxiliary plate; 65, traction rod; 66, first spring; 7, supporting mechanism; 71, annular plate; 72, connecting plate; 73, fixing plate; 74, locking plate; 75, auxiliary frame; 76, mounting frame; 77, limiting rod; 78, operating plate; 79, directional frame; 710, fifth spring; 8, storing mechanism; 81, storing frame; 82, sliding plate; 83, fourth spring; 84, pushing column; 9, assembly plate; 10, protection frame; 11, inspection plate. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0027] The present invention provides Figure 1-8 The device for detecting cracks in a bridge shown in the figure comprises a mobile box 1, a detector body 2 is arranged on the top of the mobile box 1, a detection head 3 is arranged inside the mobile box 1, the detection head 3 and the detector body 2 are connected by a connecting line, the detector body 2 is installed on the top of the mobile box 1 by external bolts, a square groove is opened on the side of the mobile box 1, an inspection plate 11 is slidably arranged inside the square groove, the inspection plate 11 is installed on the mobile box 1 by external bolts, and can be opened for use when the detection head 3 is taken out, an assembly plate 9 is symmetrically fixedly connected to the top of the mobile box 1, the assembly plate 9 is conducive to being connected with a protective frame 10, and is convenient for installing the protective frame 10, the outer part of the assembly plate 9 is slidably and interlaced with the protective frame 10, the protective frame 10 is conducive to shielding and protecting the detector body 2, and is convenient for protecting the detector body 2 when the mobile box 1 moves.

[0028] Furthermore, the mobile box 1 is provided with a storage mechanism 8 for externally enclosing the detection head 3, a positioning mechanism 4 for locking the storage position of the detection head 3 is provided on the side of the storage mechanism 8, a shielding mechanism 6 for shielding the bottom of the detection head 3 is provided on the bottom of the storage mechanism 8, a limiting mechanism 5 for locking the storage position of the shielding mechanism 6 is provided on the side of the storage mechanism 8, and a supporting mechanism 7 for taking out the detection head 3 is provided on the top of the storage mechanism 8.

[0029] Specifically, the shielding mechanism 6 includes a connecting frame 61, a shielding plate 62, a movable plate 63, an auxiliary plate 64 and a traction rod 65. The connecting frame 61 is conducive to the sliding of the movable plate 63 inside it, which is convenient for supporting the movable plate 63. The shielding plate 62 is conducive to sliding shielding of the bottom of the storage frame 81, which is convenient for shielding and protecting the detection head 3 after it is stored. The movable plate 63 and the auxiliary plate 64 are conducive to sliding support of the shielding plate 62, which is convenient for the smooth sliding of the shielding plate 62. The traction rod 65 is conducive to pulling the movable plate 63 to move, which is convenient for moving the shielding plate 62 to a bottom position away from the storage frame 81, and is also conducive to guiding the deformation of the first spring 66. The shielding plate 62 is located at the bottom of the connecting frame 61. The shielding plate 62 is used to slide and shield the bottom of the storage mechanism 8. The bottom end of the movable plate 63 and the shielding plate 62 is fixedly connected, the movable plate 63 is located inside the connecting frame 61, the side of the auxiliary plate 64 is fixedly connected to the movable plate 63, the inner wall of the connecting frame 61 is provided with a first sliding groove, the auxiliary plate 64 is slidably and interlacedly connected with the inner cavity of the first sliding groove, the top of the connecting frame 61 is provided with a second sliding groove, the end of the traction rod 65 is fixedly connected to the movable plate 63, the outer wall of the traction rod 65 is slidably and interlacedly connected with the side of the inner wall of the connecting frame 61, the outer sleeve of the traction rod 65 is provided with a first spring 66 for driving the movable plate 63 to slide horizontally, the elastic force of the first spring 66 is conducive to pushing the movable plate 63 to move, so that the shielding plate 62 can automatically slide to the bottom of the storage frame 81, which is conducive to shielding and protecting the detection head 3, one end of the first spring 66 is fixedly connected to the movable plate 63, and the other end of the first spring 66 is fixedly connected to the inner wall of the connecting frame 61.

[0030] The support frame 56 is convenient for connecting with the support plate 57, so that the support frame 53 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, so that the support frame 53 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, so that the support frame 53 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 57 ...3, and the support frame 56 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53, and the support frame 56 can be connected with the support plate 53 The position is limited to prevent the movable plate 63 and the shielding plate 62 from sliding randomly. The limiting plate 52 is slidably inserted and connected with the inner cavity of the second slide groove. The side of the bearing plate 53 is fixedly connected with an inserting plate 57, which is conducive to positioning and supporting the installation of the bearing plate 53 and facilitating the increase of the stability of the installation of the bearing plate 53. The top of the bearing plate 53 is fixedly connected with a bearing frame 58, and the bearing frame 58 is L-shaped. The bearing frame 58 is conducive to supporting the installation of the bearing plate 53. A first through groove is provided at the top of the carrier frame 58, the outer wall of the auxiliary rod 54 is slidably inserted and connected with the carrier plate 53, the external thread of the auxiliary rod 54 is inserted and connected with a locking ring, one end of the second spring 55 is fitted with the carrier plate 53, and the other end of the second spring 55 is fitted with the sliding plate 51, the carrier seat 56 is located inside the carrier frame 58, and the insertion plate 57 is slidably inserted and connected with the inner cavity of the carrier seat 56, the top of the carrier seat 56 is provided with a second through groove, and the top of the insertion plate 57 is provided with a third through groove.

[0031] Specifically, the positioning mechanism 4 includes a support frame 41, a guide frame 45 and a connecting rod 44. The support frame 41 is conducive to the sliding of the movable column 42 inside it, which is convenient for sliding support of the movable column 42. The guide frame 45 is conducive to supporting the sliding of the connecting rod 44 and is also conducive to compressing and deforming the third spring 46. The internal sliding of the support frame 41 is provided with a movable column 42, which is conducive to driving the positioning plate 43 to move, so as to facilitate the separation of the positioning plate 43 from the sliding plate 82. The connecting rod 44 is conducive to driving the movable column 42 to move, so as to facilitate the pulling operation of the positioning plate 43. The side of the movable column 42 is fixedly connected with the positioning plate 43. The bottom of the positioning plate 43 is provided with an inclined surface, which is conducive to squeezing with the sliding plate 82, so as to facilitate the sliding installation of the sliding plate 82. The positioning plate 43 is conducive to limiting the position of the sliding plate 82, so as to facilitate After the detection head 3 is stored, it is limited and fixed, and the guide frame 45 is slidably and interlacedly connected with the inner cavity of the support frame 41. The top and bottom ends of the guide frame 45 are threadedly and interlaced with locking bolts, which is conducive to the installation and disassembly of the guide frame 45, and one end of the locking bolt is threadedly and interlaced with the guide frame 45. The connecting rod 44 is slidably and interlaced with the inner cavity of the guide frame 45, and one end of the connecting rod 44 is threadedly and interlaced with the moving column 42. The outer sleeve of the connecting rod 44 is provided with a third spring 46 for driving the moving column 42 to slide horizontally. The elastic force of the third spring 46 is conducive to pushing the moving column 42 to move, so that the moving column 42 and the positioning plate 43 can be restored to their original positions after movement, and it is convenient to repeat the operation of the moving column 42 and the positioning plate 43. One end of the third spring 46 is in contact with the moving column 42, and the other end of the third spring 46 is in contact with the guide frame 45.

[0032] Specifically, the storage mechanism 8 includes a storage frame 81, a sliding plate 82, a fourth spring 83 and a pushing column 84. The storage frame 81 is conducive to storing the detection head 3 inside it, so as to store and protect the detection head 3 when it moves. The sliding plate 82 is conducive to vertically guiding the sliding of the detection head 3. The elastic force of the fourth spring 83 is conducive to pushing the detection head 3 to move, so that the detection head 3 fits with the bridge deck, so as to facilitate the mobile detection operation of the bridge crack. The pushing column 84 is conducive to pushing the sliding plate 51 to move, so as to facilitate The sliding plate 51 and the limiting plate 52 move vertically, which is convenient for the limiting plate 52 to be separated from the connecting frame 61, which is conducive to the shielding plate 62 automatically sliding to the bottom of the storage frame 81 after the detection head 3 is stored. The storage frame 81 is fixedly connected to the inside of the mobile box 1, and the detection head 3 is slidably connected with the inner cavity of the storage frame 81. The side of the storage frame 81 is fixedly connected to the bearing seat 56. The side of the storage frame 81 is provided with a third sliding groove that matches the sliding plate 51. The side of the storage frame 81 is fixedly connected to the connecting frame 61. The side is fixedly connected to the support frame 41, the side of the storage frame 81 is provided with a fourth slide groove matched with the positioning plate 43, the side of the sliding plate 82 is fixedly connected to the detection head 3, the inner wall of the storage frame 81 is provided with a guide groove, the sliding plate 82 is slidably inserted and connected with the inner cavity of the guide groove, one of the sliding plates 82 is provided with a positioning groove matched with the positioning plate 43 on the side, one end of the fourth spring 83 is fitted with the detection head 3, the other end of the fourth spring 83 is fitted with the support mechanism 7, and the bottom end of the push column 84 is fixed to one of the sliding plates 82 Connection, the pushing column 84 is used to push the sliding plate 51 to move vertically, so that the limit plate 52 is separated from the connecting frame 61, and the bottom end of the sliding plate 82 is fixedly connected with a supporting plate, which is beneficial to supporting the ground ring, and the adjacent supporting plates are fixedly connected with ground rings to facilitate supporting the ball. The bottom end of the ground ring is provided with a plurality of ball grooves, and the inner cavity of the ball groove is embedded with balls, which is beneficial to fit with the bridge deck and at the same time is beneficial to protect the detection head 3 to avoid direct friction between the detection head 3 and the bridge deck. The bottom of the detection head 3 is located inside the ground ring.

[0033] Specifically, the supporting mechanism 7 includes an annular plate 71, a fixing plate 73 and a locking plate 74. The annular plate 71 is conducive to supporting the deformation of the fourth spring 83 and is also conducive to the installation of the detection head 3. The fixing plate 73 is conducive to positioning the installation of the annular plate 71. The locking plate 74 is conducive to limiting the relative position of the fixing plate 73 and the annular plate 71, and is further conducive to the installation and removal of the annular plate 71. The bottom end of the annular plate 71 is symmetrically fixedly connected with a connecting plate 72, which is conducive to positioning the installation of the annular plate 71 and is also conducive to the relative positioning of the bearing seat 56 and the interlaced plate 57. The position is limited, which is conducive to the installation and removal of the carrying plate 53. One of the connecting plates 72 is slidably inserted and connected with the inner cavities of the first through slot, the second through slot and the third through slot. The bottom end of the fixing plate 73 is fixedly connected to the storage frame 81. The bottom end of the annular plate 71 is symmetrically provided with mounting grooves. The fixing plate 73 is slidably inserted and connected with the inner cavity of the mounting groove. A fourth through slot is provided on the side of the annular plate 71. A card slot is provided on the side of the fixing plate 73. The side of the annular plate 71 is fixedly connected with a mounting frame 76, which is conducive to limiting the position of the limit rod 77. The locking plate 74 is connected to the fourth through slot and The inner cavities of the card slots are slidably interlaced and connected. The side of the locking plate 74 is fixedly connected to an auxiliary frame 75, which is conducive to the sliding of the limit rod 77 inside it. The inner cavity of the auxiliary frame 75 is slidably provided with a limit rod 77, which is conducive to limiting the relative position of the auxiliary frame 75 and the installation frame 76 to avoid the random sliding of the auxiliary frame 75 and the locking plate 74. The limit rod 77 is slidably interlaced and connected with the inner cavity of the installation frame 76, and the outer wall of the limit rod 77 is slidably interlaced and connected with the top of the inner wall of the auxiliary frame 75. The side of the limit rod 77 is fixedly connected to an operating plate 78, which is conducive to driving the limit rod 77 to move. An oriented frame 79 is slidingly provided at the bottom of the auxiliary frame 75, which is conducive to compressing the fifth spring 710. A positioning bolt is threadedly inserted and connected to the bottom of the oriented frame 79, and one end of the positioning bolt is threadedly inserted and connected to the auxiliary frame 75. The outer sleeve of the limit rod 77 is provided with a fifth spring 710. The elastic force of the fifth spring 710 is conducive to pushing the operating plate 78 to move, so that the limit rod 77 can be restored to its original position after movement, and it is convenient to repeat the operation of the limit rod 77. One end of the fifth spring 710 is fixedly connected to the operating plate 78, and the other end of the fifth spring 710 is fixedly connected to the oriented frame 79.

[0034] Working principle of the present invention: When it is necessary to detect cracks in a bridge, the mobile box 1 is used to drive the detector body 2 and the detection head 3 to move. At this time, the position of the detection head 3 is as follows: Figure 3As shown, the moving box 1 drives the detection head 3 to move, and the detection head 3 drives the ground-contacting ring and the ball to move, so that the ball rolls on the bridge. At the same time, the elastic force of the fourth spring 83 pushes the detection head 3 to move, so that the ball is fully fitted with the crack of the bridge. Then the detection head 3 performs a detection operation on the crack of the bridge, and the detection data of the crack of the bridge is transmitted to the detector body 2. Then the protection frame 10 is removed from the assembly plate 9 to expose the detector body 2 for control operation. When the detection head 3 needs to be stored and moved, the connecting line is pulled to move, so that the connecting line drives the detection head 3 to slide inside the storage frame 81, and the sliding plate 82 guides the sliding of the detection head 3. At the same time, the sliding plate 82 drives the pushing column 84 to move, and then the sliding plate 82 and the positioning plate 43 are squeezed, and the positioning plate 43 pushes the moving column 42 to slide inside the support frame 41, and the moving column 42 compresses the third spring 46, and the third spring 46 generates an elastic force on the moving column 42, and then the positioning plate 43 is hidden on the storage frame 81, and the sliding plate 82 continues to move upward. When the positioning groove on the sliding plate 82 corresponds to the positioning plate 43, the elastic force of the third spring 46 pushes the moving column 42 to move, and the moving column 42 drives the positioning plate 43 to slide and intersperse with the inner cavity of the positioning groove, and at this time, the position of the detection head 3 is limited; When the sliding plate 82 moves, it drives the pushing column 84 to move, and the pushing column 84 drives the sliding plate 51 to move, and the sliding plate 51 drives the limiting plate 52 to move, and the sliding plate 51 drives the auxiliary rod 54 to slide on the bearing plate 53, and then the sliding plate 51 drives the limiting plate 52 to fall off from the connecting frame 61, and at this time, the first spring 66 in the compressed state releases the position limitation, and the elastic force of the first spring 66 drives the moving plate 63 to move, so that the moving plate 63 drives the shielding plate 62 to move, and the shielding plate 62 slides to the bottom of the storage frame 81, and then the interior of the storage frame 81 is shielded while the detection head 3 is stored; When the detection head 3 needs to be used, pull the traction rod 65, so that the traction rod 65 drives the movable plate 63 to move, and the movable plate 63 drives the shielding plate 62 to slide out of the bottom of the storage frame 81, and then pull the connecting rod 44, so that the connecting rod 44 drives the movable column 42 to move, and the movable column 42 drives the positioning plate 43 to disengage from the sliding plate 82. At this time, the position limitation of the detection head 3 is released, and then the elastic force of the fourth spring 83 pushes the detection head 3 to move, and at the same time the sliding plate 51 makes a recovery movement, so that the limit plate 52 limits the position of the movable plate 63, so that the detection head 3 can be used. At the same time, when the detection head 3 slides out of the storage frame 81 for use, the movable box 1 is tilted or the inspection plate 11 is placed flat on the bridge deck, so that the detection head 3 can be ejected smoothly.

[0035] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to 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 should be included in the protection scope of the present invention.

Claims

1. A device for detecting bridge cracks, comprising: A mobile box (1), wherein a detector body (2) is arranged on the top of the mobile box (1), and a detection head (3) is arranged inside the mobile box (1); The movable box (1) is characterized in that a storage mechanism (8) for externally enclosing the detection head (3) is provided on the side of the storage mechanism (8) for locking the storage position of the detection head (3); a shielding mechanism (6) for shielding the bottom of the detection head (3) is provided on the bottom of the storage mechanism (8); a limiting mechanism (5) for locking the storage position of the shielding mechanism (6) is provided on the side of the storage mechanism (8); a supporting mechanism (7) for taking out the detection head (3) is provided on the top of the storage mechanism (8); the shielding mechanism (6) comprises a connecting frame (61) and a shielding plate (62); the shielding plate (62) is located at the bottom of the connecting frame (61); and the shielding plate (62) is used to slide and shield the bottom of the storage mechanism (8).

2. The device for detecting bridge cracks according to claim 1, characterized in that: The shielding mechanism (6) further comprises: A movable plate (63), the bottom end of the movable plate (63) being fixedly connected to the shielding plate (62), and the movable plate (63) being located inside the connecting frame (61); an auxiliary plate (64), the side of the auxiliary plate (64) being fixedly connected to the movable plate (63), the inner wall of the connecting frame (61) being provided with a first sliding groove, the auxiliary plate (64) being slidably interlaced with the inner cavity of the first sliding groove, and the top of the connecting frame (61) being provided with a second sliding groove; A traction rod (65), the end of which is fixedly connected to the movable plate (63), the outer wall of the traction rod (65) is slidably connected to the side of the inner wall of the connection frame (61), the outer portion of the traction rod (65) is sleeved with a first spring (66) for driving the movable plate (63) to slide horizontally, one end of the first spring (66) is fixedly connected to the movable plate (63), and the other end of the first spring (66) is fixedly connected to the inner wall of the connection frame (61).

3. The device for detecting bridge cracks according to claim 1, characterized in that: The limiting mechanism (5) comprises: A sliding plate (51), the bottom end of the sliding plate (51) being fixedly connected to a limiting plate (52), the limiting plate (52) being slidably interlaced with the inner cavity of the second sliding groove; A bearing plate (53), the side of the bearing plate (53) being fixedly connected to an insertion plate (57), the top of the bearing plate (53) being fixedly connected to a bearing frame (58), the top of the bearing frame (58) being provided with a first through slot; An auxiliary rod (54), the outer wall of the auxiliary rod (54) being slidably interpenetratingly connected to the bearing plate (53), and the outer thread of the auxiliary rod (54) being interpenetratingly connected to a locking ring; a second spring (55), one end of the second spring (55) being in contact with the bearing plate (53), and the other end of the second spring (55) being in contact with the sliding plate (51); A bearing seat (56), the bearing seat (56) is located inside the bearing frame (58), the insertion plate (57) is slidably inserted and connected with the inner cavity of the bearing seat (56), a second through groove is formed at the top end of the bearing seat (56), and a third through groove is formed at the top end of the insertion plate (57).

4. The device for detecting bridge cracks according to claim 1, characterized in that: The positioning mechanism (4) comprises: A support frame (41), wherein a movable column (42) is slidably disposed inside the support frame (41), and a positioning plate (43) is fixedly connected to the side of the movable column (42); A guide frame (45), the guide frame (45) being slidably interpenetratingly connected to the inner cavity of the support frame (41), the top and bottom ends of the guide frame (45) being threadedly interpenetratingly connected to locking bolts, one end of the locking bolt being threadedly interpenetratingly connected to the guide frame (45); A connecting rod (44), wherein the connecting rod (44) is slidably connected to the inner cavity of the guide frame (45), one end of the connecting rod (44) is threadedly connected to the movable column (42), and the outer sleeve of the connecting rod (44) is provided with a third spring (46) for driving the movable column (42) to slide horizontally, one end of the third spring (46) is in contact with the movable column (42), and the other end of the third spring (46) is in contact with the guide frame (45).

5. The device for detecting bridge cracks according to claim 1, characterized in that: The storage mechanism (8) comprises: A storage frame (81), wherein the storage frame (81) is fixedly connected to the interior of the mobile box (1), the detection head (3) is slidably connected to the inner cavity of the storage frame (81), the side of the storage frame (81) is fixedly connected to the bearing seat (56), the side of the storage frame (81) is provided with a third slide groove that matches the sliding plate (51), the side of the storage frame (81) is fixedly connected to the connecting frame (61), the side of the storage frame (81) is fixedly connected to the supporting frame (41), and the side of the storage frame (81) is provided with a fourth slide groove that matches the positioning plate (43); A sliding plate (82), the side of which is fixedly connected to the detection head (3), the inner wall of the storage frame (81) is provided with a guide groove, the sliding plate (82) is slidably connected with the inner cavity of the guide groove, and a positioning groove matching with the positioning plate (43) is provided on the side of one of the sliding plates (82).

6. The equipment for detecting bridge cracks according to claim 5, characterized in that: The storage mechanism (8) further comprises: a fourth spring (83), one end of the fourth spring (83) being in contact with the detection head (3), and the other end of the fourth spring (83) being in contact with the support mechanism (7); A pushing column (84), the bottom end of which is fixedly connected to one of the sliding plates (82), and the pushing column (84) is used to push the sliding plate (51) to move vertically, so that the limiting plate (52) is separated from the connecting frame (61).

7. The bridge crack detection device according to claim 6, characterized in that: The bottom end of the sliding plate (82) is fixedly connected to a supporting plate, and a ground-contacting ring is fixedly connected between adjacent supporting plates. The bottom end of the ground-contacting ring is provided with a plurality of ball grooves, and the inner cavity of the ball groove is embedded with a ball. The bottom of the detection head (3) is located inside the ground-contacting ring.

8. The equipment for detecting bridge cracks according to claim 1, characterized in that: The supporting mechanism (7) comprises: An annular plate (71), wherein a connecting plate (72) is symmetrically fixedly connected to the bottom end of the annular plate (71), wherein one of the connecting plates (72) is slidably interlaced with the inner cavities of the first through slot, the second through slot, and the third through slot; A fixing plate (73), the bottom end of the fixing plate (73) being fixedly connected to the storage frame (81), the bottom end of the annular plate (71) being symmetrically provided with mounting grooves, the fixing plate (73) being slidably interlaced with the inner cavity of the mounting grooves, the side of the annular plate (71) being provided with a fourth through groove, the side of the fixing plate (73) being provided with a clamping groove, and the side of the annular plate (71) being fixedly connected to the mounting frame (76); A locking plate (74), the locking plate (74) being slidably interlaced with the inner cavities of the fourth through slot and the latching slot, and the side of the locking plate (74) being fixedly connected to an auxiliary frame (75).

9. The bridge crack detection device according to claim 8, characterized in that: A limit rod (77) is slidably disposed in the inner cavity of the auxiliary frame (75), the limit rod (77) is slidably interlaced with the inner cavity of the mounting frame (76), the outer wall of the limit rod (77) is slidably interlaced with the top of the inner wall of the auxiliary frame (75), the side of the limit rod (77) is fixedly connected with an operating plate (78), the bottom of the auxiliary frame (75) is slidably disposed with an orientation frame (79), the bottom of the orientation frame (79) is threadedly interlaced with a positioning bolt, one end of the positioning bolt is threadedly interlaced with the auxiliary frame (75), the outer sleeve of the limit rod (77) is provided with a fifth spring (710), one end of the fifth spring (710) is fixedly connected to the operating plate (78), and the other end of the fifth spring (710) is fixedly connected to the orientation frame (79).

10. The bridge crack detection device according to claim 1, characterized in that: A square groove is provided on the side of the moving box (1), an inspection plate (11) is slidably provided inside the square groove, an assembly plate (9) is symmetrically fixedly connected to the top of the moving box (1), and a protective frame (10) is slidably inserted and connected to the outside of the assembly plate (9).

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