阅读说明：本技术 一种水泥路面内部裂缝探测装置 (Inside crack detection device in cement road surface ) 是由 邹钟清 于 2020-12-24 设计创作，主要内容包括：本发明公开的一种水泥路面内部裂缝探测装置,包括探测小车和超声波探测器,还包括包括防护结构,所述防护结构包括防护罩、安装仓、第一安装孔、第一固定孔、第一滚珠丝杆、第二滚珠丝杆、第一支撑架和第二支撑架。本发明所述的一种水泥路面内部裂缝探测装置,属于道路缝隙探测设备领域,防护罩、滚珠丝杆,防护罩方便超声波探测器的安装,滚珠丝杆能够实现滑动连接结构设置的底盖滑动；滑动连接结构设置的工字型连接架和从动滚珠能够实现底盖和滚珠丝杆的连接,方便底盖沿着对接槽滑动,从而漏出底盖上端安装的超声波探测器；绕线结构设置的T型架、橡胶套和绕线筒、驱动电机,能够实现底盖上端超声波探测器导线的缠绕和整理。(The invention discloses a device for detecting internal cracks of a cement pavement, which comprises a detection trolley, an ultrasonic detector and a protection structure, wherein the protection structure comprises a protection cover, a mounting bin, a first mounting hole, a first fixing hole, a first ball screw, a second ball screw, a first support frame and a second support frame. The invention relates to a device for detecting internal cracks of a cement pavement, which belongs to the field of road crack detection equipment.A protective cover and a ball screw are arranged, the protective cover is convenient for the installation of an ultrasonic detector, and the ball screw can realize the sliding of a bottom cover arranged in a sliding connection structure; the connection between the bottom cover and the ball screw rod can be realized by the I-shaped connecting frame and the driven balls arranged in the sliding connection structure, so that the bottom cover can conveniently slide along the butt joint groove, and the ultrasonic detector arranged at the upper end of the bottom cover can be leaked; the winding structure comprises a T-shaped frame, a rubber sleeve, a winding drum and a driving motor, and the winding and the arrangement of the wires of the ultrasonic detector at the upper end of the bottom cover can be realized.)

1. The utility model provides an inside crack detection device in cement road surface, is including surveying dolly and ultrasonic detector, its characterized in that: the ultrasonic detector also comprises a protection structure (1), wherein the protection structure (1) comprises a protective cover (101), an installation bin (102), a first installation hole (103), a first fixing hole (104), a first ball screw (105), a second ball screw (106), a first support frame (107) and a second support frame (108), the upper end of the protective cover (101) is provided with the installation bin (102), the bin bottom of the installation bin (102) is provided with the first installation hole (103), the bin wall of the installation bin (102) is provided with the first fixing hole (104), the installation bin (102) is provided with the first installation hole (103) and is provided with the ultrasonic detector, the bin mouth of the installation bin (102) is provided with the first ball screw (105) and the second ball screw (106), one end of the first ball screw (105) is connected with the first support frame (107), the other end of the first ball screw (105) is connected with the second support frame (108), the upper ends of the first ball screw (105) and the second ball screw (106) are connected with a sliding connection structure (2), the sliding connection structure (2) comprises a sealing cover (201), a butt joint groove (202), an I-shaped connecting frame (203), a recessed groove (204), a jack (205), a roller (206), an embedded groove (207), a driven ball (208), a connecting strip (209), a bottom cover (210), a second mounting hole (211) and a sealing cover (212), the butt joint groove (202) is formed in the upper end of the sealing cover (201), the I-shaped connecting frame (203) is arranged in the butt joint groove (202), the recessed groove (204) is formed in the side wall of the I-shaped connecting frame (203), the jack (205) is formed in the bottom of the recessed groove (204), the roller (206) is connected to the position where the jack (205) is formed in the recessed groove (204), and the embedded groove (207) is formed in the side wall of the sealing cover (201), and inserting driven ball (208) in embedded groove (207) groove, the branch of driven ball (208) is connected with connecting strip (209), and the upper end of connecting strip (209) and I shape link (203) is connected with bottom (210), second mounting hole (211) have been seted up to the upper end of bottom (210), and the upper end of bottom (210) is provided with sealed cowling (212), second mounting hole (211) department installation ultrasonic detector is seted up to bottom (210) upper end, the lateral wall of protective structure (1) is provided with L type fixed strip (4) and wire winding structure (3), and protective structure (1) is connected with the detection dolly through L type fixed strip (4), wire winding structure (3).

2. The apparatus for detecting cracks in a cement road surface according to claim 1, wherein: the winding structure (3) comprises a T-shaped frame (301), a second fixing hole (302), a third fixing hole (303), a through hole (304), a rubber sleeve (305), a winding drum (306), a connecting disc (307) and a driving motor (308), the second fixing hole (302) is formed in the side wall of the T-shaped frame (301), the third fixing hole (303) is formed in the upper end of the T-shaped frame (301), the through hole (304) is formed in a protruding block of the side wall of the T-shaped frame (301), the rubber sleeve (305) is arranged at the position where the through hole (304) is formed in the T-shaped frame (301), the winding drum (306) is arranged at the lower end of the T-shaped frame (301), the connecting disc (307) is connected to the lower end of the winding drum (306), and an inserting rod at the upper end of the connecting disc (307) penetrates through the winding drum (306), and the T-shaped frame.

3. The apparatus for detecting cracks in a cement road surface according to claim 2, wherein: the four corners of the upper end of the protective cover (101) are provided with threaded holes which are aligned with the threaded holes in the four corners of the upper end of the sealing cover (201), the first ball screw (105) and the second ball screw (106) are identical in structure, and the first ball screw (105) is matched with the first support frame (107) and the second support frame (108).

4. The apparatus for detecting cracks in a cement road surface according to claim 3, wherein: the first support frame (107) and the second support frame (108) are fixedly connected with the sealing cover (201) through bolts, the first support frame (107) and the second support frame (108) are fixedly connected with a contact end of the protective cover (101), and the protective cover (101) is fixedly connected with the ultrasonic detector.

5. The device for detecting the internal cracks of the cement pavement according to claim 4, wherein: two butt joint grooves (202) are seted up to the upper end of closing cap (201), and the cell wall of butt joint groove (202) has seted up the bar groove, it communicates with each other to set up embedded groove (207) with closing cap (201) lateral wall butt joint groove (202), I shape link (203) and butt joint groove (202) adaptation setting, driven ball (208) and butt joint groove (202), embedded groove (207) adaptation setting.

6. The apparatus for detecting cracks in a cement road surface according to claim 5, wherein: the lower end block body and the upper end block body of the I-shaped connecting frame (203) are arranged in a separated mode, the lower end of the I-shaped connecting frame (203) is provided with a jack (205) and a fixing shaft is inserted into the jack, the fixing shaft connected with the I-shaped connecting frame (203) penetrates through the jack (205), a roller (206) is inserted into the upper end groove wall of the concave groove (204) and is provided with a hole, the I-shaped connecting frame (203) is fixedly connected with the fixing shaft, the roller (206) is movably arranged with the fixing shaft, the lower end of the I-shaped connecting frame (203) is provided with a threaded hole which is aligned with the upper end of the moving piece of the first ball screw rod (105), and the upper end of the I-shaped connecting frame (203) is provided.

7. The apparatus for detecting cracks in a cement road surface according to claim 6, wherein: driven ball (208) comprise branch and two balls, and branch and two ball fixed connection, driven ball (208) and connecting strip (209) activity set up, connecting strip (209) upper end welding piece terminal surface is seted up the screw hole and is seted up the screw hole with bottom (210) lower extreme and align, driven ball (208) slide along butt joint groove (202) inslot bar groove.

8. The apparatus for detecting cracks in a cement road surface according to claim 7, wherein: the side wall of the T-shaped frame (301) is provided with a second fixing hole (302) which is aligned with a first fixing hole (104) formed in the side wall of the protective cover (101), a third fixing hole (303) formed in the T-shaped frame (301) is aligned with a threaded hole in the installation position of the detection trolley, and the L-shaped fixing strip (4) and the protective cover (101) are fixed through bolts.

9. The apparatus for detecting cracks in a cement road surface according to claim 8, wherein: the rubber sleeve (305) is matched with a through hole (304) formed in the T-shaped frame (301), a sleeve hole formed in the rubber sleeve (305) is arranged right opposite to a wire outlet of the winding drum (306), a square hole is formed in the middle of the T-shaped frame (301), the T-shaped frame (301) is provided with the rubber sleeve (305) embedded into the square hole, the T-shaped frame (301) is connected with the rubber sleeve (305) in an adhesion mode, the driving motor (308) is connected with the end of an inserted rod of the connecting disc (307) in a threaded mode, and the connecting disc (307) is fixedly connected with the winding drum (306).

10. The apparatus for detecting cracks in a cement road surface according to claim 9, wherein: the ultrasonic detector in the sealing cover (212) is extended out of a lead wire, penetrates through the rubber sleeve (305) and is wound on the winding drum (306).

Technical Field

The invention relates to the field of road gap detection equipment, in particular to a device for detecting internal cracks of a cement pavement.

Background

The ultrasonic transmitter transmits ultrasonic waves to a certain direction, timing is started at the same time of transmitting time, the ultrasonic waves are transmitted in the air, return immediately when encountering an obstacle in the process, the ultrasonic receiver stops timing immediately after receiving reflected waves, and splicing or local construction is usually adopted in the ground construction process, so that a regular gap can appear after modular construction, the gap needs to be filled, and the pavement crack detection device is also technically improved along with rapid development of scientific technology; in the process of using the road gap detection equipment, the width of the road is smaller than the width of the detected small vehicle, the detection area of the ultrasonic detector is small, and the use effect is poor.

Disclosure of Invention

The invention mainly aims to provide a device for detecting internal cracks of a cement pavement, which can effectively solve the problems in the background technology.

In order to achieve the purpose, the invention adopts the technical scheme that:

the utility model provides a cement road surface internal crack detection device, is including surveying dolly and ultrasonic detector, still includes protective structure, protective structure includes protection casing, installation storehouse, first mounting hole, first fixed orifices, first ball screw, second ball screw, first support frame and second support frame, and the upper end of protection casing has seted up the installation storehouse, first mounting hole has been seted up at the bottom of the storehouse of installation storehouse, and the bulkhead of installation storehouse has seted up first fixed orifices, the installation storehouse is seted up first mounting hole department and is installed ultrasonic detector, the door of installation storehouse is provided with first ball screw and second ball screw, and the one end of first ball screw is connected with first support frame, the other end of first ball screw is connected with the second support frame, and the upper end of first ball screw and second ball screw is connected with sliding connection structure, sliding connection structure includes closing cap, first ball screw and second ball screw's upper end is connected with sliding connection structure, sliding connection structure includes closing cap, The ultrasonic detector comprises a butt joint groove, an I-shaped connecting frame, a sunken groove, a jack, a roller, an embedded groove, a driven ball, a connecting strip, a bottom cover, a second mounting hole and a sealing cover, wherein the butt joint groove is formed in the upper end of the sealing cover, the I-shaped connecting frame is arranged in the butt joint groove, the sunken groove is formed in the side wall of the I-shaped connecting frame, the jack is formed in the bottom of the sunken groove, the roller is connected with the sunken groove at the position where the jack is formed in the sunken groove, the embedded groove is formed in the side wall of the sealing cover, the driven ball is inserted into the embedded groove, a connecting strip is connected with the supporting rod of the driven ball, the bottom cover is connected with the upper end of the connecting strip and the I-shaped connecting frame, the second mounting hole is formed in the upper end of the bottom cover, the ultrasonic detector is installed at the position where the second mounting hole is, and the protective structure is connected with the detection trolley through an L-shaped fixing strip and a winding structure.

Preferably, winding structure includes T type frame, second fixed orifices, third fixed orifices, through-hole, rubber sleeve, bobbin, connection pad and driving motor, and the second fixed orifices has been seted up to the lateral wall of T type frame, the third fixed orifices has been seted up to the upper end of T type frame, and the lateral wall lug of T type frame has seted up the through-hole, T type frame is seted up through-hole department and is provided with the rubber sleeve, the lower extreme of T type frame is provided with the bobbin, and the lower extreme of bobbin is connected with the connection pad, connection pad upper end inserted bar runs through bobbin, T type frame and is connected with driving motor.

Preferably, the threaded holes formed in the four corners of the upper end of the protective cover are aligned with the threaded holes formed in the four corners of the upper end of the seal cover, the first ball screw and the second ball screw are identical in structure, and the first ball screw is matched with the first support frame and the second support frame.

Preferably, the first support frame and the second support frame are fixedly connected with the sealing cover through bolts, the first support frame and the second support frame are fixedly connected with the contact end of the protection cover, and the protection cover is fixedly connected with the ultrasonic detector.

Preferably, two butt joint grooves are formed in the upper end of the sealing cover, strip-shaped grooves are formed in the groove walls of the butt joint grooves, the butt joint grooves are communicated with the side walls of the sealing cover through embedded grooves, the I-shaped connecting frame is matched with the butt joint grooves, and the driven balls are matched with the butt joint grooves and the embedded grooves.

Preferably, the lower end block and the upper end block of the I-shaped connecting frame are arranged in a separated mode, the lower end of the I-shaped connecting frame is provided with a jack, the jack is inserted into the fixed shaft, the fixed shaft connected with the I-shaped connecting frame penetrates through the jack, the roller is inserted into the groove wall at the upper end of the concave groove and is provided with a hole, the I-shaped connecting frame is fixedly connected with the fixed shaft, the roller is movably arranged with the fixed shaft, the lower end of the I-shaped connecting frame is provided with a threaded hole, the threaded hole is aligned with the upper end of the first ball screw, and the upper end of the moving member I-shaped.

Preferably, the driven ball comprises a supporting rod and two balls, the supporting rod is fixedly connected with the two balls, the driven ball and the connecting strip are movably arranged, a threaded hole is formed in the end face of a welding piece at the upper end of the connecting strip and aligned with a threaded hole formed in the lower end of the bottom cover, and the driven ball slides along a strip groove in the butt joint groove.

Preferably, the second fixing hole formed in the side wall of the T-shaped frame is aligned with the first fixing hole formed in the side wall of the protective cover, the third fixing hole formed in the T-shaped frame is aligned with the threaded hole in the installation position of the detection trolley, and the L-shaped fixing strip and the protective cover are fixed through bolts.

Preferably, the rubber sleeve is matched with a through hole formed in the T-shaped frame, a sleeve hole formed in the rubber sleeve is arranged right opposite to a wire outlet of the winding drum, a square hole is formed in the middle of the T-shaped frame, the rubber sleeve is embedded into the square hole formed in the T-shaped frame, the T-shaped frame is connected with the rubber sleeve in an adhesion mode, the driving motor is connected with the end of the connecting disc inserted bar in a threaded mode, and the connecting disc is fixedly connected with the winding drum.

Preferably, the ultrasonic detector in the sealing cover extends out of a lead wire, penetrates through the rubber sleeve and is wound on the winding drum.

Compared with the prior art, the invention has the following beneficial effects: this inside crack detection device of cement road surface:

1. the protective cover and the ball screw are arranged on the protective structure, the protective cover is convenient for the installation of the ultrasonic detector, and the ball screw can realize the sliding of the bottom cover arranged on the sliding connection structure;

2. the connection between the bottom cover and the ball screw rod can be realized by the I-shaped connecting frame and the driven balls arranged in the sliding connection structure, so that the bottom cover can conveniently slide along the butt joint groove, and the ultrasonic detector arranged at the upper end of the bottom cover can be leaked;

3. the winding structure is provided with the T-shaped frame, the rubber sleeve, the winding drum and the driving motor, so that the winding and the arrangement of the ultrasonic detector lead at the upper end of the bottom cover can be realized, and the winding and knotting of the ultrasonic detector lead at the upper end of the bottom cover can be avoided;

4. the ability of the sliding connection to be extended increases the detection area.

Inside crack detection device of whole cement road surface simple structure, convenient operation, the effect of use is better for traditional mode.

Drawings

FIG. 1 is a schematic view of the overall structure of a crack detection device in a cement pavement according to the present invention;

FIG. 2 is an exploded view of the whole structure of the internal crack detection device for cement pavement according to the present invention;

FIG. 3 is a sectional view of a protection structure of the internal crack detection device for cement pavement according to the present invention;

FIG. 4 is an exploded view of a sliding connection structure of the crack detection device inside a cement pavement according to the present invention;

FIG. 5 is an enlarged schematic view of the crack detection device inside a cement pavement shown in FIG. 4A;

FIG. 6 is an enlarged schematic view of the crack detection device in a cement pavement of the present invention at B in FIG. 4;

FIG. 7 is an exploded view of a winding structure of the crack detector for cement pavement according to the present invention.

In the figure: 1. a protective structure; 101. a protective cover; 102. installing a bin; 103. a first mounting hole; 104. a first fixing hole; 105. a first ball screw; 106. a second ball screw; 107. a first support frame; 108. a second support frame; 2. a sliding connection structure; 201. sealing the cover; 202. a butt joint groove; 203. an I-shaped connecting frame; 204. a recessed groove; 205. a jack; 206. a drum; 207. a groove is embedded; 208. a driven ball; 209. a connecting strip; 210. a bottom cover; 211. a second mounting hole; 212. a sealing cover; 3. a winding structure; 301. a T-shaped frame; 302. a second fixing hole; 303. a third fixing hole; 304. a through hole; 305. a rubber sleeve; 306. a bobbin; 307. a connecting disc; 308. a drive motor; 4. an L-shaped fixing strip.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" 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 "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

As shown in fig. 1-7, a device for detecting cracks in a cement pavement, comprising a detection trolley, an ultrasonic detector, and a protective structure 1, wherein the protective structure 1 comprises a protective cover 101, an installation bin 102, a first installation hole 103, a first fixing hole 104, a first ball screw 105, a second ball screw 106, a first support frame 107 and a second support frame 108, the upper end of the protective cover 101 is provided with the installation bin 102, the bottom of the installation bin 102 is provided with the first installation hole 103, the wall of the installation bin 102 is provided with the first fixing hole 104, the installation bin 102 is provided with the first installation hole 103 and is provided with the ultrasonic detector, the opening of the installation bin 102 is provided with the first ball screw 105 and the second ball screw 106, one end of the first ball screw 105 is connected with the first support frame 107, the other end of the first ball screw 105 is connected with the second support frame 108, and the upper ends of the first ball screw 105 and the second ball screw 106 are connected with a sliding connection structure 2, the sliding connection structure 2 comprises a sealing cover 201, a butt joint groove 202, an I-shaped connecting frame 203, a concave groove 204, a jack 205, a roller 206, an embedded groove 207, a driven ball 208, a connecting bar 209, a bottom cover 210, a second mounting hole 211 and a sealing cover 212, wherein the butt joint groove 202 is arranged at the upper end of the sealing cover 201, the I-shaped connecting frame 203 is arranged in the groove of the butt joint groove 202, the concave groove 204 is arranged on the side wall of the I-shaped connecting frame 203, the jack 205 is arranged at the bottom of the concave groove 204, the roller 206 is connected to the position where the jack 205 is arranged in the concave groove 204, the embedded groove 207 is arranged on the side wall of the sealing cover 201, the driven ball 208 is inserted into the groove 207, a connecting bar 209 is connected with a supporting rod of the driven ball 208, the bottom cover 210 is connected with the upper ends of the connecting bar 209 and the I-shaped connecting frame 203, the second mounting hole 211 is arranged at the upper end of the bottom cover 210, the sealing, the side wall of the protective structure 1 is provided with an L-shaped fixing strip 4 and a winding structure 3, and the protective structure 1 is connected with the detection trolley through the L-shaped fixing strip 4 and the winding structure 3.

The winding structure 3 comprises a T-shaped frame 301, a second fixing hole 302, a third fixing hole 303, a through hole 304, a rubber sleeve 305, a bobbin 306, a connecting disc 307 and a driving motor 308, the second fixing hole 302 is formed in the side wall of the T-shaped frame 301, the third fixing hole 303 is formed in the upper end of the T-shaped frame 301, the through hole 304 is formed in a protruding block of the side wall of the T-shaped frame 301, the rubber sleeve 305 is arranged at the position where the through hole 304 is formed in the T-shaped frame 301, the bobbin 306 is arranged at the lower end of the T-shaped frame 301, the connecting disc 307 is connected to the lower end of the bobbin 306, and an insertion rod at the upper end of the connecting disc 307 penetrates through the bobbin 306 and the T.

The threaded holes formed in the four corners of the upper end of the protective cover 101 are aligned with the threaded holes formed in the four corners of the upper end of the sealing cover 201, the first ball screw 105 and the second ball screw 106 are identical in structure, and the first ball screw 105, the first support frame 107 and the second support frame 108 are arranged in a matched mode.

The first support frame 107 and the second support frame 108 are fixedly connected with the sealing cover 201 through bolts, the first support frame 107 and the second support frame 108 are fixedly connected with the contact end of the protective cover 101, and the protective cover 101 is fixedly connected with the ultrasonic detector.

Two butt joint grooves 202 are formed in the upper end of the sealing cover 201, strip-shaped grooves are formed in the groove walls of the butt joint grooves 202, the butt joint grooves 202 are communicated with the side walls of the sealing cover 201 through embedded grooves 207, the I-shaped connecting frame 203 is matched with the butt joint grooves 202, and the driven balls 208 are matched with the butt joint grooves 202 and the embedded grooves 207.

The lower end block body and the upper end block body of the I-shaped connecting frame 203 are arranged in a separated mode, the lower end of the I-shaped connecting frame 203 is provided with a jack 205, a fixing shaft is inserted into the jack 205, the fixing shaft connected with the I-shaped connecting frame 203 penetrates through the jack 205, a roller 206 is inserted into the upper end groove wall of the concave groove 204 and provided with a hole, the I-shaped connecting frame 203 is fixedly connected with the fixing shaft, the roller 206 and the fixing shaft are movably arranged, the lower end of the I-shaped connecting frame 203 is provided with a threaded hole, the threaded hole is aligned with the upper end of the moving piece of the first ball screw 105, and the upper end of the I.

Wherein, driven ball 208 comprises branch and two balls, and branch and two ball fixed connection, and driven ball 208 and connecting strip 209 activity set up, and connecting strip 209 upper end welding piece terminal surface is seted up the screw hole and is seted up the screwed hole with the bottom 210 lower extreme and align, and driven ball 208 slides along butt joint groove 202 inslot bar groove.

The second fixing hole 302 formed in the side wall of the T-shaped frame 301 is aligned with the first fixing hole 104 formed in the side wall of the protective cover 101, the third fixing hole 303 formed in the T-shaped frame 301 is aligned with the threaded hole in the installation position of the detection trolley, and the L-shaped fixing strip 4 and the protective cover 101 are fixed through bolts.

The rubber sleeve 305 is matched with a through hole 304 formed in the T-shaped frame 301, a sleeve hole formed in the rubber sleeve 305 is arranged right opposite to an outlet of the winding drum 306, a square hole is formed in the middle of the T-shaped frame 301, the rubber sleeve 305 is embedded into the square hole formed in the T-shaped frame 301, the T-shaped frame 301 is connected with the rubber sleeve 305 in an adhesion mode, the driving motor 308 is connected with the end of an inserted rod of the connecting disc 307 in a threaded mode, and the connecting disc 307 is fixedly connected with the winding drum 306.

Wherein, the ultrasonic detector in the sealing cover 212 covers the lead wire which extends out of the rubber sleeve 305 and is wound on the winding reel 306; the protective cover 101 and the ball screw are arranged on the protective structure 1, the protective cover 101 is convenient for the ultrasonic detector to be installed, and the ball screw can realize the sliding of the bottom cover 210 arranged on the sliding connection structure 2; the connection between the bottom cover 210 and the ball screw can be realized by the I-shaped connecting frame 203 and the driven balls 208 arranged in the sliding connection structure 2, so that the bottom cover 210 can conveniently slide along the butt joint groove 202, and the ultrasonic detector arranged at the upper end of the bottom cover 210 can leak; t type frame 301, rubber sleeve 305 and bobbin 306, driving motor 308 that winding structure 3 set up can realize the winding and the arrangement of bottom 210 upper end ultrasonic detector wire, avoid bottom 210 upper end ultrasonic detector wire winding to tie a knot.

It should be noted that, when the protection structure 1, the L-shaped fixing strip 4, the sliding connection structure 2 and the winding structure 3 are assembled, the first ball screw 105 and the second ball screw 106 of the protection structure 1 have the same structure, the first support frame 107 fixes one end of the first ball screw 105, the second support frame 108 is installed at the other end of the first ball screw 105, the upper ends of the first support frame 107 and the second support frame 108 contact the sealing cover 201, before the first support frame 107, the second support frame 108 and the sealing cover 201 are connected, the sliding connection structure 2 is assembled first, the ultrasonic detector is placed at the upper end of the bottom cover 210 of the sliding connection structure 2, the ultrasonic detector is placed in the second installation hole 211 formed in the bottom cover 210, the bottom cover 210 and the ultrasonic detector are fixed, the sealing cover 212 covers the upper end of the bottom cover 210, the sealing cover 212 is fixedly connected with the bottom cover 210 through bolts, the contact end of the sealing cover 212 and the bottom cover 210 is arranged in a sealing way, the roller 206 is embedded into a groove 204 formed in the side wall of the I-shaped connecting frame 203, the lower end of the roller 206 is provided with a hole which is aligned with a jack 205 formed in the bottom of the groove 204, the lower end of the I-shaped connecting frame 203 is provided with a jack 205 which is inserted into a fixed shaft, the fixed shaft penetrates through the jack 205, the roller 206 is inserted into a hole formed in the upper end wall of the groove 204, the fixed shaft is fixedly connected with the I-shaped connecting frame 203, so that the assembly of the roller 206 and the I-shaped connecting frame 203 is realized, the roller 206 is stirred, the roller 206 can rotate in the groove 204, the I-shaped connecting frame 203 is integrally embedded into a butt joint groove 202 formed in the sealing cover 201, the outer wall of the roller 206 is contacted with the wall of the, then, the ball on the other side of the driven ball 208 is fixedly installed, the connecting bar 209 and the driven ball 208 are aligned to the embedded groove 207 formed in the side wall of the sealing cover 201, the driven ball 208 slides into the butt joint groove 202 along the embedded groove 207, the driven ball 208 can slide in the strip-shaped groove formed in the groove wall of the butt joint groove 202, so that the assembly of the sealing cover 201, the I-shaped connecting frame 203 and the driven ball 208 is completed, the first ball screw 105 moving piece contacts the lower end of the I-shaped connecting frame 203, the threaded hole formed in the moving piece of the first ball screw 105 is aligned with the threaded hole formed in the lower end of the I-shaped connecting frame 203, the threaded hole formed in the lower end of the moving piece of the first ball screw 105 is aligned with the threaded hole formed in the lower end of the I-shaped connecting frame 203 by using a bolt, the bolt penetrates through the threaded hole formed in the lower end of the, the connecting strip 209 connected by the driven balls 208 is shifted, the upper end of the connecting strip 209 is contacted with the lower end of the bottom cover 210, the welding sheet is welded at the upper end of the connecting strip 209, the end face of the welding sheet is provided with a threaded hole which is aligned with the threaded hole arranged at the lower end of the bottom cover 210, a bolt is inserted into the threaded hole arranged at the welding sheet of the connecting strip 209 and penetrates through the threaded hole arranged at the welding sheet of the connecting strip 209 and is inserted into the threaded hole arranged at the lower end of the bottom cover 210, so that the fixing between the connecting strip 209 and the bottom cover 210 is completed, then the second ball screw 106 is connected with the other I-shaped connecting frame 203 of the sealing cover 201, the other driven ball 208 is connected with the other bottom cover 210, so that the assembly of the sliding connecting structure 2 is completed, the supporting frame is fixed with the sealing cover 201 through a bolt, the ultrasonic detector is arranged at the first mounting hole 103 arranged, the rubber sleeve 305 arranged on the winding structure 3 is embedded into a through hole 304 arranged on a T-shaped frame 301, the rubber sleeve 305 is connected with a contact end of the T-shaped frame 301 in an adhesion way, an inserting rod at the upper end of a connecting disc 307 is inserted into a through hole arranged at the lower end of a winding drum 306 in an aligning way, an inserting rod at the upper end of the connecting disc 307 is inserted into a through hole arranged at the upper end of the T-shaped frame 301 in a continuing way after penetrating through the winding drum 306, the inserting rod at the upper end of the connecting disc 307 is connected with a driving motor 308 through a bolt after penetrating through a hole arranged on the T-shaped frame 301, a threaded hole is arranged at the contact end of the connecting disc 307 and the winding drum 306 in an aligning way, the connecting disc 307 is inserted into a threaded hole arranged on the connecting disc 307 by using a bolt, so as to realize the fixation between the connecting disc 307 and the winding drum 306, the T-shaped frame 301, the third fixing hole 303 that the upper end was seted up of T type frame 301 aims at surveying dolly installation position, uses the bolt to carry out T type frame 301 and the fixed of surveying dolly to accomplish protective structure 1 and the fixed of surveying dolly, the ultrasonic detector wire winding is connected with surveying dolly equipment on bobbin 306 again in the sealed cowling 212 cover, and the ultrasonic detector wire runs through protection casing 101 and is connected with surveying dolly equipment in the protection casing 101 cover.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.