CN113123206B

CN113123206B - Marking equipment for building site

Info

Publication number: CN113123206B
Application number: CN202110388058.8A
Authority: CN
Inventors: 沈政强
Original assignee: Yichang Jietong Engineering Construction Co ltd
Current assignee: Yichang Jietong Engineering Construction Co ltd
Priority date: 2021-04-10
Filing date: 2021-04-10
Publication date: 2022-10-11
Anticipated expiration: 2041-04-10
Also published as: CN113123206A

Abstract

The invention discloses marking equipment for a construction site, which comprises a main body shell, wherein a plurality of fixed blocks are fixedly connected on the side wall of the main body shell, universal wheels are movably inserted in the fixed blocks, one end of the main body shell is fixedly connected with a pair of side plates, a handle is fixedly connected between the side plates, a feed inlet is formed in the main body shell, a rotating shaft is rotatably arranged in the main body shell, a sleeve ring is rotatably arranged on the rotating shaft, a plurality of fixed shafts are fixedly connected on the sleeve ring, movable grooves are formed in the fixed shafts, compression springs are fixedly connected on the inner walls of the movable grooves, and a cleaning head is arranged at one end of each fixed shaft; compared with the prior art, the cleaning head can clean garbage on the ground, the cleaning head can beat the ground by means of the force of the compression spring to tamp the ground, and the sliding plate shakes in the moving process, so that large-particle soil and the like on the surface of the cleaning head can be shaken off, and the cleaning head is prevented from being adhered to the cleaning head to influence subsequent scribing.

Description

Marking equipment for building site

Technical Field

The invention relates to the technical field of building construction, in particular to marking equipment for a building site.

Background

The building engineering refers to an engineering entity formed by the construction of various building constructions and their auxiliary facilities and the installation of lines, pipelines and equipment matched with them. The house building is characterized by comprising a top cover, a beam column, a wall, a foundation and a project which can form an internal space and meet the requirements of people on production, living, study and public activities.

In the whole production process from construction preparation, earth breaking and engineering completion acceptance, some areas need to be marked during the construction process, however, the marking of the existing construction is manually carried out by lime spreading, the marking is not straight, the marking is not uniform and is not attractive, and a lot of construction wastes are accumulated on the bottom surface to influence the marking of the construction area, so that a marking device for a construction site is provided for solving the problems.

Disclosure of Invention

The invention aims to provide a marking device for a construction site, which solves the problems in the prior art.

In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a marking off equipment for building site, includes main body cover, a plurality of fixed blocks of fixedly connected with on the main body cover lateral wall, the activity is inserted in the fixed block and is equipped with the universal wheel, a pair of curb plate of main body cover one end fixedly connected with, fixedly connected with handle between the curb plate, the feed inlet has been seted up on the main body cover, the inside pivot that rotates of main body cover, it is equipped with the lantern ring to rotate in the pivot, and a plurality of fixed axles of fixedly connected with on the lantern ring, the movable groove has been seted up to fixed axle inside, fixedly connected with compression spring on the movable inslot wall, fixed axle one end is equipped with the cleaning head, cleaning head one end fixedly connected with carriage release lever, and the carriage release lever activity is inserted and is established inside the movable groove, main body cover has inside seted up and has accomodate the chamber, accomodate fixed a plurality of extrusion mechanisms that are equipped with on the chamber lateral wall, accomodate chamber one side and be equipped with the slide, and be equipped with a plurality of drive mechanism in the slide, it is equipped with the sieve to accomodate the activity of intracavity portion, sieve and slide fixed connection, when needing to mark off line some regions on the building worker ground, constructor can promote the edge removal at regional edge, can clean at the in the marking off-line in-off process, can reduce constructor's work volume.

Preferably, extrusion mechanism includes the elastic ball, elastic ball fixed connection is on accomodating the chamber lateral wall, it has a pair of hinge bar to articulate on the elastic ball inner wall, the inside extrusion groove of having seted up of hinge bar, the inside fixedly connected with compression spring of extrusion groove, and compression spring one end fixedly connected with movable rod, the movable rod activity is inserted and is established inside the extrusion groove, movable rod one end fixedly connected with clutch blocks, it is equipped with a plurality of elastic blocks to accomodate on the chamber lateral wall fixedly, elastic block offsets with the clutch blocks, fixedly connected with elastic rod between the hinge bar, cleaning head can extrude the slide rotating the in-process, promote the slide and remove, produce the extrusion to the elastic ball surface, can make between clutch blocks and the elastic block extrude each other, make the elastic ball surface produce the shake, can drive the slide shake in moving the in-process, can shake off the large granule etc. on cleaning head surface, avoid its adhesion on the cleaning head, influence subsequent marking off.

Preferably, drive mechanism includes the transmission chamber, the transmission chamber is seted up inside the slide, transmission chamber one side is equipped with the arc, fixedly connected with compression rod on the arc inner wall, compression rod both ends fixedly connected with elasticity rope, fixedly connected with sketch plate on the arc inner wall, elasticity rope one end fixed connection is on the sketch plate lateral wall, fixedly connected with transfer line on the sketch plate inner wall, a plurality of half slots have been seted up on the transfer line, the spacing groove has been seted up on the transmission intracavity wall, the inside fixedly connected with stripper plate of spacing groove, stripper plate one side offsets with the sketch plate, and atmospheric pressure can make the stripper plate outwards expand deformation, can push away the sketch plate outwards motion, and under the effect of elasticity rope, the sketch plate opens to both sides, increases the deformation degree of sketch plate, makes the toper piece can support at the cleaning head surface, can scrape the stone etc. on cleaning head surface, avoids its card on cleaning head.

Preferably, a plurality of elasticity barbs of arc plate surface fixedly connected with, the inside fixed metal pole that is equipped with of elasticity barb, arc plate both ends fixed surface is connected with the cleaning plate, the cleaning plate is the rubber material, and the cleaning head can support on the slide surface with the help of compression spring's power, can with the arc between the looks mutual friction, can scrape the earth etc. that the cleaning head surface is difficult for shaking off through the elasticity barb.

Preferably, a pair of connecting axle of fixedly connected with between the dysmorphism board, a pair of connecting axle fixed surface is connected with connecting block, the connecting block is the toper, fixedly connected with telescopic link on the connecting axle, fixedly connected with block rubber on the telescopic link, the block rubber offsets with the half slot, a pair of fixed spring of fixedly connected with on the telescopic link lateral wall, fixed spring one end fixed connection is on the connecting block lateral wall, block rubber both ends fixedly connected with elastic wall, elastic wall one end fixed connection is on the connecting block lateral wall, under the effect of elasticity rope and stripper plate, the connecting axle can support on the transfer line surface, makes it can shake at the in-process that resets, and the cooperation cleaning plate can shake off impurity such as surperficial earth.

Preferably, the fixed clean mechanism of a plurality of assistance that is equipped with on the transmission chamber lateral wall, supplementary clean mechanism includes a pair of bracing piece, bracing piece one end fixed connection is on transmission chamber inner wall, fixedly connected with reset plate on the bracing piece, reset plate has elasticity, the straight board of fixedly connected with between the reset plate, straight board offsets with the compression pole, be equipped with the straight-bar between the bracing piece, straight-bar fixed connection is on transmission chamber inner wall, fixedly connected with elastic shaft on the straight-bar, fixedly connected with arc pole on the bracing piece, the arc has been seted up to arc pole inside, the inside movable insert of arc is equipped with the driving lever, the driving lever has elasticity, driving lever both ends fixedly connected with reset spring, and reset spring one end fixed connection is on the arc inner wall, and the arc can take place deformation under the effect of pressure to drive the compression pole rebound, to the board surface production extrusion, make the reset plate take place deformation, promote arc pole rebound, the driving lever can be to stirring elastic shaft, can make the driving lever shake, can make the elasticity barb have better clean effect.

Preferably, fixedly connected with conical block on the transfer line, the conical cavity has been seted up to conical block inside, a plurality of connecting spring of the inside fixedly connected with in conical cavity, fixedly connected with metal ball between connecting spring can further strengthen the transfer line vibrations through metal ball and connecting spring, has better clean effect.

Compared with the prior art, the invention has the beneficial effects that:

1. the cleaning head can be abutted against the ground to clean the garbage on the ground, and the cleaning head can knock the ground by means of the force of the compression spring to tamp the ground, so that the condition that the ground is uneven is reduced;

2. according to the invention, the cleaning head can extrude the sliding plate in the rotating process to push the sliding plate to move and extrude the surface of the elastic ball, so that the friction block and the elastic block can be extruded with each other, the surface of the elastic ball shakes, the sliding plate is driven to shake in the moving process, large-particle soil and the like on the surface of the cleaning head can be shaken off, and the cleaning head is prevented from being adhered to the cleaning head to influence subsequent scribing;

3. according to the invention, soil and the like which are not easy to shake off on the surface of the cleaning head can be scraped off through the elastic barbs, and the arc-shaped plate can deform under the action of pressure, so that the compression rod is driven to move inwards to extrude the surface of the plate, the reset plate deforms, the arc-shaped rod is pushed to move inwards, the shifting rod can shift the elastic shaft, the shifting rod can shake, and the elastic barbs can have a better cleaning effect;

4. according to the invention, the extrusion plate expands outwards to deform, the special-shaped plate can be pushed to move outwards, and under the action of the elastic pull rope, the special-shaped plate is opened towards two sides, so that the deformation degree of the special-shaped plate is increased, the conical block can be abutted against the surface of the cleaning head, stones and the like clamped on the surface of the cleaning head can be scraped off, and the stones and the like are prevented from being clamped on the cleaning head.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the structure of the present invention;

FIG. 3 is a partially enlarged view of the transmission mechanism of the present invention;

FIG. 4 is a schematic view of the extrusion mechanism of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 3;

FIG. 6 is an enlarged view of a portion of FIG. 2 at B according to the present invention;

FIG. 7 is a partially enlarged schematic view of the tapered block of the present invention;

in the figure: 1. a main body housing; 2. a rotating shaft; 3. an extrusion mechanism; 4. a transmission mechanism; 5. an auxiliary cleaning mechanism; 11. a feed inlet; 12. a side plate; 13. a fixed block; 14. a receiving cavity; 15. a sieve plate; 21. a fixed shaft; 22. a movable groove; 23. a cleaning head; 31. an elastic ball; 32. an elastic rod; 33. a hinged lever; 34. extruding a groove; 35. a movable rod; 36. a friction block; 37. an elastic block; 41. a transmission cavity; 42. an arc-shaped plate; 421. cleaning the plate; 422. elastic barbs; 43. a conical block; 431. a tapered cavity; 432. a metal ball; 433. a connecting spring; 44. a compression bar; 441. an elastic cord; 45. a shaped plate; 46. a limiting groove; 461. a pressing plate; 47. a transmission rod; 48. a connecting shaft; 481. a resilient wall; 482. connecting blocks; 49. A telescopic rod; 491. a rubber block; 492. fixing the spring; 51. a support bar; 52. a straight plate; 53. a reset plate; 54. an arc-shaped rod; 541. an arc-shaped slot; 55. a deflector rod; 56. a straight rod; 561. an elastic shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides a technical solution: the utility model provides a marking off equipment for building site, including main body cover 1, a plurality of fixed block 13 of fixedly connected with on the main body cover 1 lateral wall, the activity is inserted and is equipped with the universal wheel in the fixed block 13, a pair of curb plate 12 of main body cover 1 one end fixedly connected with, fixedly connected with handle between curb plate 12, main body cover 1 is last to have seted up feed inlet 11, main body cover 1 is inside to rotate and is equipped with pivot 2, it is equipped with the lantern ring to rotate on the pivot 2, and a plurality of fixed axles 21 of fixedly connected with on the lantern ring, movable groove 22 has been seted up inside the fixed axle 21, fixedly connected with compression spring on the movable groove 22 inner wall, fixed axle 21 one end is equipped with cleaning head 23, cleaning head 23 one end fixedly connected with carriage release lever, and carriage release lever activity is inserted and is established inside movable groove 22, main body cover 1 is inside has seted up accomodates chamber 14, it is fixed with a plurality of extrusion mechanism 3 on the chamber 14 lateral wall to accomodate, accomodate chamber 14 one side is equipped with the slide, and be equipped with a plurality of drive mechanism 4 in the slide, accomodate the inside activity of chamber 14 is equipped with sieve 15, 15 and slide fixed connection with slide, when needing to mark off equipment to mark on the building site, constructor to carry out on the regional edge, construction personnel can promote the marking off equipment and remove on the regional edge, can carry out the ground in the marking off process, the work load that can reduce constructor the construction personnel.

Extrusion mechanism 3 includes elastic ball 31, elastic ball 31 fixed connection is on accomodating 14 lateral walls, it has a pair of articulated rod 33 to articulate on the elastic ball 31 inner wall, extrusion groove 34 has been seted up to articulated rod 33 inside, the inside fixedly connected with compression spring of extrusion groove 34, and compression spring one end fixedly connected with movable rod 35, movable rod 35 activity is inserted and is established inside extrusion groove 34, movable rod 35 one end fixedly connected with clutch blocks 36, it is equipped with a plurality of elastic blocks 37 to accomodate fixedly on the 14 lateral walls of chamber, elastic blocks 37 offsets with clutch blocks 36, fixedly connected with elastic rod 32 between articulated rod 33, cleaner 23 can extrude the slide at the rotation in-process, promote the slide and remove, produce the extrusion to elastic ball 31 surface, can make mutual extrusion between clutch blocks 36 and the elastic blocks 37, make elastic ball 31 surface produce the shake, can drive the slide shake at the removal in-process, can shake large granule on cleaner 23 surface, avoid its adhesion on cleaner 23, influence subsequent marking off.

Drive mechanism 4 includes transmission chamber 41, transmission chamber 41 is seted up inside the slide, transmission chamber 41 one side is equipped with arc 42, fixedly connected with compression pole 44 on the arc 42 inner wall, compression pole 44 both ends fixedly connected with elasticity rope 441, fixedly connected with dysmorphism board 45 on the arc 42 inner wall, elasticity rope 441 one end fixed connection is on dysmorphism board 45 lateral wall, fixedly connected with transfer line 47 on the dysmorphism board 45 inner wall, a plurality of half slots have been seted up on transfer line 47, spacing groove 46 has been seted up on transmission chamber 41 inner wall, the inside fixedly connected with stripper plate 461 of spacing groove 46, stripper plate 461 one side offsets with dysmorphism board 45, atmospheric pressure can make stripper plate 461 outwards expand deformation, can push away the outwards motion of dysmorphism board 45, and under the effect of elasticity rope 441, dysmorphism board 45 opens to both sides, increase the deformation degree of dysmorphism board 45, make toper piece 43 can support on cleaning head 23 surface, can scrape down the stone etc. of card on cleaning head 23 surface, avoid its card on cleaning head 23.

Arc 42 fixed surface is connected with a plurality of elasticity barbs 422, and elasticity barb 422 internal fixation is equipped with the metal pole, and arc 42 both ends fixed surface is connected with cleaning plate 421, and cleaning plate 421 are the rubber material, and cleaning head 23 can support on the slide surface with the help of compression spring's power, can with the arc 42 between the looks mutual friction, can scrape the earth etc. that cleaning head 23 surface was difficult for shaking off through elasticity barb 422.

A pair of connecting axle 48 of fixedly connected with between dysmorphism board 45, a pair of connecting block 482 of connecting axle 48 fixed surface connection, connecting block 482 is the toper, fixedly connected with telescopic link 49 on the connecting axle 48, fixedly connected with rubber block 491 on the telescopic link 49, rubber block 491 offsets with the half slot, a pair of fixed spring 492 of fixedly connected with on the telescopic link 49 lateral wall, fixed spring 492 one end fixed connection is on the connecting block 482 lateral wall, rubber block 491 both ends fixedly connected with elastic wall 481, elastic wall 481 one end fixed connection is on the connecting block 482 lateral wall, under the effect of elastic rope 441 and stripper plate 461, connecting axle 48 can support on the transfer line 47 surface, make it can produce the shake in the reset in-process, cooperation cleaning plate 421 can shake off impurity such as the earth on surface.

Fixed a plurality of supplementary clean mechanisms 5 that are equipped with on the transmission chamber 41 lateral wall, supplementary clean mechanism 5 includes a pair of bracing piece 51, bracing piece 51 one end fixed connection is on transmission chamber 41 inner wall, fixedly connected with reset plate 53 on bracing piece 51, reset plate 53 has elasticity, fixedly connected with straight plate 52 between reset plate 53, straight plate 52 offsets with compression bar 44, be equipped with straight-bar 56 between bracing piece 51, straight-bar 56 fixed connection is on transmission chamber 41 inner wall, fixedly connected with elastic shaft 561 on straight-bar 56, fixedly connected with arc 54 on bracing piece 51, arc 541 has been seted up to arc 54 inside, the inside activity of arc 541 is inserted and is equipped with driving lever 55, driving lever 55 has elasticity, driving lever 55 both ends fixed connection has reset spring, and reset spring one end fixed connection is on arc 541 inner wall, arc 42 can take place the deformation under the effect of pressure, thereby compression drives the inside removal of pole 44, produce the extrusion to straight plate 52 surface, make reset plate 53 take place deformation, promote arc 54 and inwards move, driving lever 55 can be to elastic shaft 561, can make driving lever 55 produce the shake, can make elasticity stir barb 422 have the shake, can make.

Fixedly connected with conical block 43 on the transfer line 47, conical cavity 431 has been seted up to conical block 43 inside, and a plurality of connecting spring 433 of the inside fixedly connected with of conical cavity 431, fixedly connected with metal ball 432 between connecting spring 433 can further strengthen the vibrations of transfer line 47 through metal ball 432 and connecting spring 433, have better clean effect.

The working principle is as follows: firstly, when some areas need to be scribed on a building site, a constructor can push scribing equipment to move at the edge of the area, the ground can be cleaned in the scribing process, the workload of the constructor can be reduced, in the moving process of the scribing device, the cleaning head 23 can be abutted against the ground to clean garbage on the ground, the cleaning head 23 can beat the ground by means of the force of a compression spring to tamp the ground, the uneven condition of the ground is reduced, meanwhile, along with the movement of the scribing equipment, the cleaning head 23 can drive the rotating shaft 2 to rotate by means of the friction force between the cleaning head and the ground, the cleaning head 23 can extrude the sliding plate in the rotating process to push the sliding plate to move, the surface of the elastic ball 31 is extruded, the friction block 36 and the elastic block 37 can be extruded mutually, and the surface of the elastic ball 31 shakes, can drive the sliding plate to shake in the moving process, can shake off large-particle soil and the like on the surface of the cleaning head 23, avoid the large-particle soil and the like from being adhered on the cleaning head 23 to influence subsequent scribing, can support the cleaning head 23 on the surface of the sliding plate by virtue of the force of a compression spring, can rub against the arc-shaped plate 42, can scrape off the soil and the like on the surface of the cleaning head 23, which are not easy to shake off, through the elastic barb 422, and can deform under the pressure, so that the compression rod 44 is driven to move inwards to extrude the surface of the straight plate 52, so that the reset plate 53 deforms, the arc-shaped rod 54 is pushed to move inwards, the deflector rod 55 can shake the deflector rod 55, the elastic barb 422 can have better cleaning effect, along with the inward movement of the sliding plate, the internal air pressure can enable the extrusion plate 461 to expand and deform outwards, and can push the special-shaped plate 45 to move outwards, and under the effect of elasticity rope 441, special-shaped plate 45 opens to both sides, increase the deformation degree of special-shaped plate 45, make toper piece 43 can support on cleaning head 23 surface, can scrape off the stone etc. that blocks in cleaning head 23 surface, avoid its card on cleaning head 23, along with the rotation of pivot 2, cleaning head 23 reduces to the pressure of slide gradually, the slide can slowly reset, the extrusion that arc 42 received reduces gradually, can make compression pole 44 reset, in the process of resetting, driving lever 55 stirs elastic shaft 561 and shakes, can shake off the remaining earth in arc 42 surface, avoid it to pile up on arc 42 surface, simultaneously under the effect of elasticity rope 441 and stripper plate 461, connecting axle 48 can support on the surface of transfer line 47, make it can shake in the process of resetting, cooperation cleaning plate 421 can shake off the impurity such as earth on surface, can further strengthen the vibrations through metal ball 432 and connecting spring 433, have better cleaning effect.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A marking device for a construction site, comprising a main body casing (1), characterized in that: the cleaning device comprises a main body shell (1), a plurality of fixing blocks (13) are fixedly connected to the side wall of the main body shell (1), universal wheels are movably inserted into the fixing blocks (13), one end of the main body shell (1) is fixedly connected with a pair of side plates (12), a handle is fixedly connected between the side plates (12), a feed inlet (11) is formed in the main body shell (1), a rotating shaft (2) is arranged in the main body shell (1) in a rotating mode, a sleeve ring is arranged in the rotating shaft (2) in a rotating mode, a plurality of fixing shafts (21) are fixedly connected to the sleeve ring, a movable groove (22) is formed in each fixing shaft (21), a compression spring is fixedly connected to the inner wall of each movable groove (22), a cleaning head (23) is arranged at one end of each fixing shaft (21), a moving rod is fixedly connected to one end of each cleaning head (23), the moving rods are movably inserted into the corresponding movable grooves (22), a containing cavity (14) is formed in the main body shell (1), a plurality of extruding mechanisms (3) are fixedly arranged on the side wall of the containing cavity (14), one side wall of each containing cavity is provided with a sliding plate (14), and a sliding plate (15) is fixedly connected with a sieve plate;

extrusion mechanism (3) are including elastic ball (31), elastic ball (31) fixed connection is on accomodating chamber (14) lateral wall, it has a pair of articulated rod (33) to articulate on elastic ball (31) inner wall, extrusion groove (34) have been seted up to articulated rod (33) inside, the inside fixedly connected with compression spring in extrusion groove (34), and compression spring one end fixedly connected with movable rod (35), movable rod (35) activity is inserted and is established inside extrusion groove (34), movable rod (35) one end fixedly connected with clutch blocks (36), it is fixed on chamber (14) lateral wall to be equipped with a plurality of elastic blocks (37), elastic block (37) offset with clutch blocks (36), fixedly connected with elastic rod (32) between articulated rod (33).

2. A line marking apparatus for a construction site as claimed in claim 1, wherein: drive mechanism (4) are including transmission chamber (41), set up inside the slide in transmission chamber (41), transmission chamber (41) one side is equipped with arc (42), fixedly connected with compression pole (44) on arc (42) inner wall, compression pole (44) both ends fixedly connected with elasticity rope (441), fixedly connected with sketch plate (45) on arc (42) inner wall, elasticity rope (441) one end fixed connection is on sketch plate (45) lateral wall, fixedly connected with transfer line (47) on sketch plate (45) inner wall, a plurality of half slots have been seted up on transfer line (47), spacing groove (46) have been seted up on transmission chamber (41) inner wall, inside fixedly connected with stripper plate (461) of spacing groove (46), stripper plate (461) one side offsets with sketch plate (45).

3. The marking apparatus for a construction site according to claim 2, wherein: arc (42) fixed surface is connected with a plurality of elasticity barbs (422), elasticity barb (422) inside fixed is equipped with the metal pole, arc (42) both ends fixed surface is connected with clean board (421), clean board (421) are the rubber material.

4. The marking apparatus for a construction site according to claim 2, wherein: a pair of connecting shafts (48) is fixedly connected between the special-shaped plates (45), a pair of connecting blocks (482) is fixedly connected to the surfaces of the connecting shafts (48), the connecting blocks (482) are conical, telescopic rods (49) are fixedly connected to the connecting shafts (48), rubber blocks (491) are fixedly connected to the telescopic rods (49), the rubber blocks (491) are abutted to the semicircular grooves, a pair of fixing springs (492) are fixedly connected to the side walls of the telescopic rods (49), one ends of the fixing springs (492) are fixedly connected to the side walls of the connecting blocks (482), elastic walls (481) are fixedly connected to the two ends of the rubber blocks (491), and one ends of the elastic walls (481) are fixedly connected to the side walls of the connecting blocks (482).

5. A line marking apparatus for a construction site as claimed in claim 2, wherein: the utility model discloses a cleaning device, including transmission chamber (41), fixed being equipped with a plurality of supplementary clean mechanism (5) on the lateral wall of transmission chamber (41), supplementary clean mechanism (5) include a pair of bracing piece (51), bracing piece (51) one end fixed connection is on transmission chamber (41) inner wall, fixedly connected with reset plate (53) is gone up in bracing piece (51), reset plate (53) have elasticity, fixedly connected with straight plate (52) between reset plate (53), straight plate (52) offset with compressing rod (44), be equipped with straight-bar (56) between bracing piece (51), straight-bar (56) fixed connection is on transmission chamber (41) inner wall, fixedly connected with elastic shaft (561) is gone up in straight-bar (56), fixedly connected with arc pole (54) is gone up in bracing piece (51), arc wall (541) have been seted up in arc wall (54), arc wall (541) inside activity is inserted and is equipped with driving lever (55), driving lever (55) have elasticity, driving lever (55) both ends fixed connection has reset spring, and reset spring one end fixed connection is on arc wall (541).

6. A line marking apparatus for a construction site as claimed in claim 2, wherein: fixedly connected with toper piece (43) on transfer line (47), toper chamber (431) have been seted up to toper piece (43) inside, a plurality of connecting spring (433) of the inside fixedly connected with in toper chamber (431), fixedly connected with metal ball (432) between connecting spring (433).