CN114934428A

CN114934428A - Concrete road surface curing means

Info

Publication number: CN114934428A
Application number: CN202210497147.0A
Authority: CN
Inventors: 田晓明
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-05-09
Filing date: 2022-05-09
Publication date: 2022-08-23
Anticipated expiration: 2042-05-09
Also published as: CN114934428B

Abstract

The invention aims to solve the problem that the operation of workers is complicated when the concrete pavement is maintained in the prior art, and provides a concrete pavement maintenance device which comprises a frame body, a covering material laying mechanism and a spraying mechanism, wherein the frame body comprises a first side frame, a second side frame, a frame and an expansion frame; the covering material laying mechanism comprises two prismatic inserted rods and a covering coiled material, the two inserted rods are respectively and rotatably connected to the two side frames, one end of the covering coiled material is provided with a scroll, and two ends of the scroll are respectively provided with a slot matched with the shape of the inserted rods; the spraying mechanism comprises a flexible spraying pipe, one end of the spraying pipe is a blind end and is arranged on the first side frame, the other end of the spraying pipe is fixedly connected to the second side frame, and a plurality of water outlet holes which are uniformly distributed along the length direction of the pipe are formed in the pipe wall of the spraying pipe. The covering coiled material is convenient to regularly lay and pack up, and the workload required by the laying of workers can be reduced.

Description

Concrete road surface curing means

Technical Field

The invention relates to the field of concrete pavement construction, in particular to a concrete pavement maintenance device.

Background

After the concrete pavement is paved or the soft-working anti-skid structure is finished, the concrete pavement needs to be maintained. The various concrete pavements, bridge decks and butt straps paved mechanically are preferably cured by spraying curing agent and simultaneously moisturizing and covering. The watering and moisture curing modes of covering moisture-preserving films, geotechnical felts, geotechnical cloth, gunny bags, straw curtains and the like can be adopted.

When water or curing agent is sprayed and the covering coiled material is paved, manual operation is needed and is carried out separately, and the operation of workers is complex. When the covering coiled materials are folded after maintenance is finished, the coiled materials are difficult to fold regularly, and the workload of the construction in the ending stage is increased.

Disclosure of Invention

The invention aims to provide a concrete pavement maintenance device aiming at the problem that in the prior art, when concrete pavement maintenance is carried out, the operation of workers is complicated.

The technical purpose of the invention is realized by the following technical scheme:

a concrete pavement maintenance device comprises a frame body, a covering material laying mechanism and a spraying mechanism, wherein the frame body comprises a first side frame, a second side frame, a frame respectively arranged at the bottom ends of the two side frames and a telescopic frame capable of stretching along the horizontal direction, and the first side frame and the second side frame are oppositely arranged and are respectively connected with two ends of the telescopic frame; the covering material laying mechanism comprises two prismatic inserted rods and a covering coiled material, the two inserted rods are respectively and rotatably connected to the two side frames, the geometric axes and the rotating axes of the two inserted rods are coincident and parallel to the telescopic direction of the telescopic frame, one end of the covering coiled material is provided with a scroll, and two ends of the scroll are respectively provided with a slot matched with the shape of the inserted rod; the spraying mechanism comprises a flexible spraying pipe, one end of the spraying pipe is a blind end and is arranged on the first side frame, the other end of the spraying pipe is provided with a connecting pipe head used for connecting a water supply device, the connecting pipe head is fixedly connected to the second side frame, and a plurality of water outlet holes evenly distributed along the length direction of the pipe are formed in the pipe wall of the spraying pipe.

By adopting the technical scheme, the side frame and the expansion bracket are utilized to form the portal frame body with adjustable width, when the portal frame body is erected on a road surface, the spraying mechanism and the covering material laying mechanism can be suspended above the road surface, the covering coiled material is rotated to be loosened in the moving process along with the movement of the frame body along the length direction of the road surface, the material can be uniformly laid on the road surface, and simultaneously, water or curing agent is uniformly sprayed on the road surface and the covering material through the water outlet holes on the spraying pipes, so that the workload required by the laying of workers can be greatly reduced, when the maintenance is finished and the covering material is recycled, the winding of the covering material can be realized by only connecting the reel to the frame body and rotating the inserted bar in the opposite direction, the covering coiled material can be conveniently and regularly folded, the workload of the workers is further reduced, and the recycling of the covering coiled material is also convenient, in addition, the covering coiled material and the spraying pipe are erected on the frame body, so that friction between the road surface and the material and between the road surface and the spraying pipe in the moving process can be reduced, the paving material and the spraying pipe can be protected, and the service life of the spraying pipe can be prolonged. The structure of the telescopic frame can adapt to pavements with different widths and covering coiled materials with corresponding widths, the inserted bar can be separated from or inserted into the scroll by extending or shortening the telescopic frame, and the covering coiled materials can be conveniently mounted and dismounted; in addition, when the telescopic frame is shortened to the shortest, the occupied area of equipment can be greatly reduced, and the transportation and the storage are convenient.

Preferably, the spraying mechanism further comprises a winding pipe barrel, the winding pipe barrel is rotatably connected to the first side frame, the blind end of the spraying pipe is fixedly connected to the circumferential wall of the winding pipe barrel, and the length of the spraying pipe is not less than the length of the telescopic frame when the telescopic frame extends to the longest length.

By adopting the technical scheme, the length of the spray pipe between the two side frames can be adjusted according to the length of the telescopic frame, and redundant spray pipes are wound on the reel pipe, so that the spray pipes are prevented from being too long to contact the road surface and being placed in disorder.

Preferably, the spray pipe further comprises a stop mechanism arranged between the blind end of the spray pipe and the connector head, the stop mechanism comprises a fixed seat fixedly connected to the first side frame and a clamping rod fixedly connected to the fixed seat in a sliding manner, and the spray pipe is positioned between the fixed seat and the clamping rod; the utility model discloses a lead screw, including fixing base, clamping bar, limiting plate, lead screw, bracing piece, slide bar, limiting plate, the fixed limiting plate that is provided with of two parallel arrangement's of fixedly connected with support slide bar on the fixing base, the one end that the fixing base was kept away from to the support slide bar is fixed, rotates between fixing base and the limiting plate and is provided with the lead screw, the rotation axis of lead screw is parallel with the bracing piece, set up on the clamping bar with support the slide opening of slide bar looks adaptation and support the slide bar and be located the slide opening, the clamping bar with lead screw threaded connection.

By adopting the technical scheme, the spray pipes are clamped or released by utilizing the fixation and sliding of the clamping rods, the spray pipes can be sealed at the clamping positions, and the partial spray pipes wound on the pipe coiling barrel are not communicated with water, so that the water leakage of the areas, above the road surface, of which the spray pipes are not suspended is avoided, and the waste is reduced. The supporting slide rod is utilized to support the clamping rod to slide, the clamping rod is moved up and down and fixed through the self-locking function of the screw rod, and the limiting plate is used for supporting the screw rod, stably supporting the slide rod and preventing the clamping rod from slipping.

Preferably, the telescopic frame comprises two parallel fork shearing mechanisms arranged side by side, the two fork shearing mechanisms are connected through a plurality of shaft rods, the shaft rods are fixedly arranged at hinge shafts at the end parts of the fork shearing arms, and the spray pipes penetrate through the two fork shearing mechanisms and are lapped on the shaft rods.

Adopt above-mentioned technical scheme, utilize to cut fork mechanism to realize the flexible function of expansion bracket, set up two and cut fork mechanism and make the rigidity of expansion bracket better, the structure is more stable, and the shower is taken on the axostylus axostyle, can utilize axostylus axostyle bearing shower.

The preferred still includes drive inserted bar pivoted actuating mechanism, actuating mechanism includes along vertical direction sliding connection wheel carrier on the frame of limit, rotate walking wheel, synchronous component and the pressure spring of connection on the wheel carrier, the axis of rotation of walking wheel is parallel with the axis of rotation of inserted bar, and walking wheel and inserted bar pass through synchronous component and connect and rotate in step, pressure spring sets up along vertical direction and its both ends are connected with wheel carrier and limit frame respectively, and pressure spring oppresses the wheel carrier downwards and goes upward walking wheel and make the walking wheel hug closely with ground.

Adopt above-mentioned technical scheme, through pressure spring with the walking wheel pressure subaerial, when removing the support body like this, the walking wheel rotates under the effect of frictional force, makes inserted bar and walking wheel synchronous rotation through synchronous subassembly to drive the spool and rotate, only need remove the support body like this and just can realize that cover material lays receiving and releasing of mechanism, further simplified operation reduces user's work load. The pressure spring can increase the frictional force between walking wheel and the ground, avoids or reduces the walking wheel and skids, can also guarantee the contact of walking wheel and ground at unevenness subaerial, more adapts to job site's environment.

Preferably, the synchronous component comprises a first gear coaxially and fixedly connected with the inserted link, a second gear rotationally connected with the side frame and meshed with the first gear, a second synchronous belt pulley coaxially and fixedly connected with the second gear, a first synchronous belt pulley coaxially and fixedly connected with the travelling wheel and a synchronous belt meshed with the first and second synchronous belt pulleys; the first synchronous belt wheel is arranged in the annular groove.

Adopt above-mentioned technical scheme, carry out the transmission through the hold-in range and help guaranteeing transmission efficiency, can also adapt to the walking wheel simultaneously and displace about a small amount on unevenness's road surface. First synchronous belt pulley sets up in the annular groove, helps the stress balance at walking wheel both ends.

Preferably, the circumferential surface of the travelling wheel is provided with an anti-skid groove.

Adopt above-mentioned technical scheme, help increasing the coefficient of friction between walking wheel and the ground, further avoid or reduce the walking wheel and skid.

Preferably, the covering material laying mechanisms are arranged in two rows, each covering material laying mechanism further comprises a suspension piece detachably connected to the expansion bracket, each suspension piece is provided with a connecting rod groove, and one end of each reel can be placed in the corresponding connecting rod groove.

Adopt above-mentioned technical scheme, set up two covering material and lay the mechanism, can lay two rolls of covering coiled material simultaneously, can cover through two narrower covering coiled material concatenations on the road surface of some broad, the one end that the covering coiled material can not touch the side frame is supported by suspending the frame in midair.

Preferably, a plurality of rollers are rotatably arranged in the connecting rod groove, the rollers are distributed along the circumferential direction of the inserted rod, the rotating axes of the rollers are parallel to the rotating axis of the inserted rod, and the rollers are in contact with the circumferential surfaces of the rollers when the reel is positioned in the connecting rod groove.

By adopting the technical scheme, the rollers are arranged, so that the resistance of the reel to rotate in the connecting rod groove can be reduced.

Preferably, the side frame is rotatably connected with the frame and has a vertical rotation axis, and the frame is rotatably provided with a plurality of wheels with parallel axes.

By adopting the technical scheme, the frame can be rotated, the translation directions of the side frames are locked by utilizing the wheels with parallel axes, the side frames can be prevented from deviating in the process of moving along the length direction of the road surface, the relative distance of the two side frames is changed or the whole frame body deviates a predetermined track, the frame can be rotated when the expansion frame needs to be extended or shortened, and the rotation axes of the wheels are perpendicular to the expansion direction of the expansion frame, so that the two side frames are close to or far away from each other.

The invention has the following beneficial effects:

being convenient for will cover regular the laying on the road surface of coiled material or pack up, can accomplish spraying of water or curing agent simultaneously at the in-process of laying covering material, the workman that can significantly reduce lays required work load, is convenient for cover the recovery of coiled material and recycles, helps improving the life who covers the coiled material, and the occupation of land of equipment is little, is convenient for transport and storage.

Drawings

FIG. 1 is a schematic structural view of an embodiment of a concrete pavement maintenance apparatus according to the present invention;

FIG. 2 is a schematic view of a side of the concrete roadway maintenance device;

FIG. 3 is a schematic view of the telescopic frame of the concrete pavement maintenance device when shortened;

FIG. 4 is a schematic view of the concrete pavement maintenance apparatus with two covering material laying mechanisms;

FIG. 5 is an enlarged view at A in FIG. 4;

fig. 6 is a schematic structural view of the suspension.

Reference number legend, 100, rack; 110. a first side frame; 120. a second side frame; 130. a telescopic frame; 131. a shaft lever; 132. shearing a fork rod; 140. a frame; 150. a pipe head fixing seat; 160. a first sliding chute; 170. a second chute; 171. a traveler; 200. a covering material laying mechanism; 210. a rod is inserted; 220. covering the coiled material; 221. a reel; 222, c; a slot; 300. a spraying mechanism; 310. a shower pipe; 311. connecting the pipe heads; 320. winding a pipe barrel; 400. a cut-off mechanism; 410. a fixed seat; 420. supporting the sliding rod; 430. a lead screw; 440. a clamping rod; 450. a knob; 460. a limiting plate; 500. a drive mechanism; 510. a traveling wheel; 520. a wheel carrier; 530. a synchronization component; 531. a first gear; 532. a second gear; 533. a synchronous belt; 534. a second timing pulley; 535. a linkage gear; 540. a compression spring; 600. a suspension; 601. hooking; 602. a connecting rod slot; 603. and a roller.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings. In which like parts are designated by like reference numerals.

A concrete pavement maintenance device, as shown in fig. 1 and 2, comprises a frame body 100, a covering material laying mechanism 200, a spraying mechanism 300, a stopping mechanism 400 and a driving mechanism 500.

As shown in fig. 1, the rack body 100 includes a side frame, a frame 140, and an expansion bracket 130. Two side frames are arranged, namely a first side frame 110 and a second side frame 120. The two frames 140 are respectively connected below the two side frames in a rotating mode, the rotating axis between the two frames is vertical, and a plurality of wheels with parallel axes are arranged on the frames 140 in a rotating mode. The first side frame 110 and the second side frame 120 are arranged oppositely, the telescopic frame 130 extends and retracts along the horizontal direction, and two ends of the telescopic frame 130 are connected with the first side frame 110 and the second side frame 120 respectively. The telescopic frame 130 comprises two parallel scissors mechanisms arranged side by side, each scissors mechanism comprises a scissors rod 132 and a hinge shaft, the hinge shafts of the two scissors mechanisms are in one-to-one correspondence and coaxial, and the hinge shaft at the end of the scissors rod 132 is connected with the corresponding hinge shaft of the other scissors mechanism through a shaft rod 131. The axostylus axostyle 131 that is located the telescopic bracket 130 both ends links to each other with the side frame, wherein is located lower axostylus axostyle 131 and side frame fixed connection in position, and the higher axostylus axostyle 131 in position is used for side frame sliding connection, combines to show in fig. 3, sets up the spout one 160 of width and axostylus axostyle 131 diameter looks adaptation on the side frame, and spout one 160 sets up along vertical direction, and the tip of the higher axostylus axostyle 131 in position is located spout one 160.

As shown in FIG. 1, the cover material laying mechanism 200 includes a plunger 210 and a cover web 220. The two inserting rods 210 are respectively connected to the two side frames in a rotating manner, and the geometric axes and the rotating axes of the two inserting rods 210 are coincident and parallel to the extending direction of the telescopic frame 130. The covering coil 220 includes a rectangular covering material and a reel 221, one end of the covering material is fixedly connected to the circumferential surface of the reel 221 and wound on the reel 221, and with reference to fig. 5, two ends of the reel 221 are respectively provided with an insertion slot 222 adapted to the shape of the insertion rod 210, and the insertion rods 210 on the two side frames are respectively inserted into the insertion slots 222 at two ends of the reel 221 when in use. The plunger 210 has a prism shape to prevent relative rotation between the spool 221 and the plunger 210. A plurality of cover rolls 220 of different widths may be provided, and the width is selected as appropriate according to the width of the pavement to be maintained when in use.

As shown in fig. 2, the two insertion rods 210 of the covering material laying mechanism 200 are driven to rotate by a driving mechanism 500. The driving mechanism 500 includes a wheel frame 520 slidably coupled to the side frame, a traveling wheel 510 rotatably coupled to a bottom end of the wheel frame 520, a synchronizing member 530, and a pressing spring 540. As shown in fig. 3, the side frame is provided with a second vertical sliding groove 170, one end of the wheel frame 520 is matched with the second sliding groove 170 and is located in the second sliding groove 170, a vertical sliding column 171 is fixedly arranged in the second sliding groove 170, the wheel frame 520 is provided with a through hole matched with the sliding column 171, and the sliding column 171 is located in the through hole. The compression spring 540 is sleeved on the sliding column 171 and is positioned above the wheel frame 520, and two ends of the compression spring 540 are respectively fixedly connected with the top wall of the second sliding groove 170 and the wheel frame 520; when the hold-down spring 540 is in a natural state, the lowest point of the walking wheel 510 is lower than the lowest point of the wheel, so that the hold-down spring 540 is always in a compressed state when the walking wheel 510 contacts the ground. The rotation axis of the walking wheel 510 is parallel to the rotation axis of the inserted link 210, the walking wheel 510 and the inserted link 210 are connected and synchronously rotated through the synchronizing assembly 530, the walking wheel 510 is relatively rotated with respect to the ground by moving the frame body 100 so as to drive the inserted link 210 to rotate, and the covering coil 220 is wound and unwound, and the diameter of the walking wheel 510 is preferably close to that of the covering coil 220, so that the winding and unwinding length is close to that of the equipment passing through the road surface. The synchronizing assembly 530 comprises a first gear 531 coaxially and fixedly connected with the inserted bar 210, a second gear 532 rotatably connected with the side frame and meshed with the first gear 531, a second synchronizing pulley 534 coaxially and fixedly connected with the second gear 532, a first synchronizing pulley coaxially and fixedly connected with the traveling wheel 510 and a synchronizing belt 533, wherein the first synchronizing pulley and the second synchronizing pulley 534 are respectively meshed with the synchronizing belt 533. The circumferential surface of the traveling wheel 510 is provided with an annular groove coaxial therewith, and the first synchronous pulley is disposed in the annular groove. The circumferential surface of the travelling wheel 510 is provided with an anti-skid groove pipe head fixing seat 150.

Referring to fig. 1 and 2, the spraying mechanism 300 includes a spraying pipe 310 and a pipe reeling cylinder 320, the spraying pipe 310 is a flexible pipe, one end of the spraying pipe 310 is a blind end, the other end of the spraying pipe is an open end, and a plurality of water outlet holes (not shown) uniformly distributed along the length direction of the pipe are formed on the pipe wall of the spraying pipe 310. A connection pipe head 311 for connecting a water supply device is arranged on the opening end of the spray pipe 310, and the connection pipe head 311 is fixedly arranged on the second side frame 120 through a pipe head fixing seat 150. The pipe coiling barrel 320 is rotatably connected to the first side frame 110, the axis of the rotating shaft of the pipe coiling barrel 320 is coincident with the axis of the pipe coiling barrel, and the blind end of the spraying pipe 310 is fixedly connected to the circumferential wall of the pipe coiling barrel 320. The shower 310 passes between the two scissor mechanisms and rides on the lower shaft 131. The water supply device can be installed on the side frame, for example, a water tank is arranged on the side frame, and a water pump with a water outlet connected with the connector 311 is arranged in the water tank; the water supply may also be a fixed pressure water source, connected to the connector 311 by a water pipe.

As shown in fig. 2, the stopping mechanism 400 is disposed between the blind end of the shower pipe 310 and the connector head 311, and is used for stopping the shower pipe 310, the stopping mechanism 400 includes a fixing seat 410 connected to the first side frame 110, two vertical supporting slide rods 420 fixedly connected to the fixing seat 410, a limiting plate 460 fixedly connected to the top ends of the supporting slide rods 420, a lead screw 430 and a clamping rod 440 rotatably connected between the fixing seat 410 and the limiting plate 460, a rotation axis of the lead screw 430 is parallel to the supporting rods, the clamping rod 440 is provided with a slide hole matched with the supporting slide rods 420, the supporting slide rods 420 are located in the slide hole, the clamping rod 440 is in threaded connection with the lead screw, and the top of the lead screw is provided with a knob 450 so as to rotate the lead screw 430. The shower pipe 310 passes between the fixing base 410 and the clamping rod 440.

When the device is used, a proper covering coiled material 220 is selected according to the breadth of the pavement, the device is moved to one end of the pavement to be maintained, the telescopic frame 130 is stretched, the two side frames are respectively positioned at two sides of the pavement and the distance between the two side frames is slightly larger than the length of the reel 221, the slots 222 at two ends of the reel 221 are aligned with the inserting rods 210, the distance between the side frames is adjusted, the inserting rods 210 are inserted into the slots 222, the free end of the covering coiled material 220 is pulled out to be covered on the pavement and is pressed and fixed by a heavy object, the water supply device is opened, the frame body 100 is moved along the length direction of the pavement, the covering coiled material 220 is unwound and laid on the pavement and is sprayed with water or a maintenance agent until the free end of the pavement is moved to the other end of the pavement, the water supply device is closed, the telescopic frame 130 is stretched, the reel 221 is taken down, and when the water or the maintenance agent needs to be supplemented later, the water supply device is opened, and the frame body 100 is moved in a reciprocating manner. After the maintenance is completed, the frame body 100 is moved to the position of the winding shaft 221, the winding shaft 221 is mounted on the frame body 100, and moved to the other end of the road surface, and the covering coil 220 is wound up in the process. It should be noted that the rack body 100 can be moved by manpower or can be driven by an existing power device, in this embodiment, the rack body is driven by manpower, and preferably, two operators control the movement of the two side racks at the same time to ensure that the rack body 100 moves stably.

As shown in fig. 1 and fig. 4, one covering material laying mechanism 200 may be provided, or two covering materials may be provided side by side, two covering materials 220 may be simultaneously wound and unwound when two covering materials are provided, the staggered covering surface openings of the two covering materials 220 may cover a reset range with a larger width, in this case, the covering material laying mechanism 200 further needs to provide an accessory, the accessory is a suspension piece 600 detachably connected to the shaft rod 131, as shown in fig. 5 and fig. 6, one end of the suspension piece 600 is provided with a hook 601 capable of being hung on the shaft rod 131, the suspension piece 600 is provided with a link groove 602, the link groove 602 is a through groove, the reel 221 is inserted onto the plunger 210 during use, and the other end of the suspension piece 600 is put in the link groove 602 of the suspension piece 600. A plurality of rollers 603 are rotatably disposed in the link groove 602, the rollers 603 are circumferentially distributed along the plunger 210, and the rotational axes of the rollers 603 are parallel to the rotational axis of the plunger 210 and contact the circumferential surface of each roller 603 when the spool 221 is located in the link groove 602, so as to reduce the resistance to be overcome during rotation. It should be noted that a linking gear 535 may be provided between the two insert rods 210 on the same side frame, and the linking gear 535 engages with the first gears 531 corresponding to the two insert rods 210 to link the two insert rods 210. The width of the covering material is preferably less than the length of the spool 221, leaving sufficient space for attachment to the pendant 600 and adjustment of position.

The specific examples are merely illustrative of the invention and are not intended to be limiting.

Claims

1. The utility model provides a concrete road surface curing means which characterized in that: the frame body (100) comprises a first side frame (110), a second side frame (120), a frame (140) respectively arranged at the bottom ends of the two side frames and an expansion frame (130) extending along the horizontal direction, wherein the first side frame (110) and the second side frame (120) are oppositely arranged and are respectively connected with two ends of the expansion frame (130); the covering material laying mechanism (200) comprises two prismatic inserted rods (210) and covering coiled materials (220), the two inserted rods (210) are respectively connected to the two side frames in a rotating mode, the geometric axes and the rotating axes of the two inserted rods (210) are overlapped and parallel to the stretching direction of the stretching frame (130), one end of each covering coiled material (220) is provided with a reel (221), and two ends of each reel (221) are respectively provided with inserting grooves (222) matched with the shapes of the inserted rods (210); spraying mechanism (300) includes flexible shower (310), and the one end of shower (310) is the cecum and sets up on side frame one (110), and the other end is provided with connection tube head (311) that are used for connecting water supply installation, connection tube head (311) fixed connection is on side frame two (120), has seted up a plurality of apopores of evenly arranging along a tub length direction on the pipe wall of shower (310).

2. A concrete pavement maintenance device according to claim 1, wherein: the spraying mechanism (300) further comprises a pipe winding barrel (320), the pipe winding barrel (320) is rotatably connected to the first side frame (110), the blind end of the spraying pipe (310) is fixedly connected to the circumferential wall of the pipe winding barrel (320), and the length of the spraying pipe (310) is not less than the length of the telescopic frame (130) when the telescopic frame (130) extends to the maximum.

3. A concrete pavement maintenance device according to claim 2, wherein: the spray pipe is characterized by further comprising a stopping mechanism (400) arranged between the blind end of the spray pipe (310) and the connecting pipe head (311), wherein the stopping mechanism (400) comprises a fixing seat (410) fixedly connected to the first side frame (110) and a clamping rod (440) fixedly connected to the fixing seat (410) in a sliding mode, and the spray pipe (310) is located between the fixing seat (410) and the clamping rod (440); the fixed limiting plate (460) that is provided with of one end that fixing base (410) was kept away from to two parallel arrangement's support slide bar (420) on fixing base (410), support slide bar (420), rotate between fixing base (410) and limiting plate (460) and be provided with lead screw (430), the axis of rotation of lead screw (430) is parallel with the bracing piece, set up on clamping bar (440) with the draw-off hole that supports slide bar (420) looks adaptation and support slide bar (420) and be located the draw-off hole, clamping bar (440) with lead screw (430) threaded connection.

4. A concrete pavement maintenance device according to claim 1, wherein: the telescopic frame (130) comprises two parallel fork shearing mechanisms arranged side by side, the two fork shearing mechanisms are connected through a plurality of shaft rods (131), the shaft rods (131) are fixedly arranged at hinged shafts at the end parts of the fork shearing arms, and the spraying pipe (310) penetrates through the space between the two fork shearing mechanisms and is lapped on the shaft rods (131).

5. A concrete pavement maintenance device according to claim 1, wherein: still including drive inserted bar (210) pivoted actuating mechanism (500), actuating mechanism (500) include along vertical direction sliding connection wheel carrier (520), the walking wheel (510), synchronous component (530) and pressure spring (540) of rotation connection on wheel carrier (520) on the frame of limit, the axis of rotation of walking wheel (510) is parallel with the axis of rotation of inserted bar (210), and walking wheel (510) and inserted bar (210) are connected and synchronous rotation through synchronous component (530), pressure spring (540) set up and its both ends are connected with wheel carrier (520) and frame of limit respectively along vertical direction, and pressure spring (540) oppress wheel carrier (520) and upward walking wheel (510) down and make walking wheel (510) hug closely with ground.

6. A concrete pavement maintenance device according to claim 5, characterized in that: the synchronous component (530) comprises a first gear (531) coaxially fixedly connected with the inserted rod (210), a second gear (532) rotatably connected with the side frame and meshed with the first gear (531), a second synchronous belt wheel (534) coaxially fixedly connected with the second gear (532), a first synchronous belt wheel coaxially fixedly connected with the travelling wheel (510) and a synchronous belt (533) meshed with the first synchronous belt wheel and the second synchronous belt wheel (534); the circumferential surface of the travelling wheel (510) is provided with an annular groove () coaxial with the travelling wheel, and the first synchronous belt wheel is arranged in the annular groove ().

7. A concrete pavement maintenance device according to claim 5, characterized in that: the circumferential surface of the travelling wheel (510) is provided with an anti-skidding groove (a pipe head fixing seat 150).

8. A concrete pavement maintenance device according to claim 1, wherein: covering material lays mechanism (200) and sets up two side by side, covering material lays mechanism (200) still including dismantling the connection and be in suspension member (600) on expansion bracket (130), suspension member (600) is last to have seted up connecting rod groove (602), and the one end of spool (221) can be taken in connecting rod groove (602).

9. A concrete pavement maintenance device according to claim 8, wherein: the connecting rod groove (602) is rotatably provided with a plurality of rollers (603), the rollers (603) are distributed along the circumferential direction of the inserted rod (210), the rotating axes of the rollers (603) are parallel to the rotating axis of the inserted rod (210), and when the reel (221) is positioned in the connecting rod groove (602), the reel contacts with the circumferential surface of each roller (603).

10. A concrete pavement maintenance device according to claim 1, wherein: the side frame is rotationally connected with the frame (140) and the rotation axis of the side frame is vertical, and a plurality of wheels with parallel axes are rotationally arranged on the frame (140).