CN110924379B

CN110924379B - Ground rammer compactor for construction site

Info

Publication number: CN110924379B
Application number: CN201911248217.3A
Authority: CN
Inventors: 卢世军
Original assignee: Lu'an Zhongda Information Technology Co ltd
Current assignee: Lu'an Zhongda Information Technology Co ltd
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2021-07-02
Anticipated expiration: 2039-12-09
Also published as: CN110924379A

Abstract

The invention discloses a ground compactor for a construction site, which comprises a base plate, wherein a handrail is arranged at the top of the base plate close to one end of the base plate, a transmission mechanism with a belt tensioning assembly is arranged at the top of the base plate, the transmission mechanism comprises support plates connected to the base plate in a sliding manner, a connecting shaft is arranged between the two support plates, a transmission wheel a connected with a power assembly through a first transmission belt is arranged on the connecting shaft, a transmission wheel b connected with a transmission wheel c arranged on an installation shaft through a second transmission belt is arranged on one side of the transmission wheel a on the connecting shaft, an eccentric plate with adjustable weight is arranged on the installation shaft, a detachable rammer arranged on the installation shaft is arranged below the eccentric plate, and two ends of the installation shaft are connected with a; the invention can simultaneously adjust the tension degree of the two transmission belts, is convenient to disassemble, can be continuously used without replacing the whole tamper head, reduces the use cost and has good damping effect.

Description

Ground rammer compactor for construction site

Technical Field

The invention relates to a ground compactor for a construction site, and belongs to the technical field of construction equipment.

Background

The frog ramming machine is one kind of ramming machine and is made by means of the principle of rotating inertia force and consists of rammer, ramming frame, eccentric block, belt pulley, motor, etc.

Patent one, patent No. 201720189000. X, discloses a rammer compactor, including be used for fixed holistic mount, for rammer compactor provides power drive arrangement and eccentric, drive arrangement with eccentric passes through the belt and connects, be equipped with the tight device of accuse that is used for controlling the belt to connect the elasticity on the belt, the tight device of accuse includes to support the piece, rotates piece and dead lever, support tight piece butt in the belt, support the piece be provided with two and respectively fixed connection in the both ends of rotating the piece, dead lever one end fixed connection in rotate piece, other end fixed connection in the mount, when the belt is lax relatively, thereby make two support the piece take place the translation rotation around same root center pin through rotating the rotation piece, make the relative first vertical distance between two support pieces shorten the degree of supporting into the belt deepening, thereby make the belt become tighter relatively, the dead lever then is responsible for the rotation piece after fixed rotation and makes it not take place to rotate under the belt reaction force, so set up the relative elasticity that accuse tight device can be to the belt and regulate and control, thereby make the belt not influence the transmission and influence the tamping effect of rammer.

Patent No. 201820490711.5 discloses a rammer head of rammer compactor convenient to dismantle, including rammer compactor, the bottom of rammer compactor is provided with the board, the top both sides fixedly connected with shaft groove of board, shaft groove swing joint rammer head frame's one end, the other end fixed connection steel bay of rammer head frame, the bottom of steel bay is provided with a hole, a hole cross-under has a screw, the bottom of steel bay is provided with the rammer head groove, the top of rammer head groove is provided with No. two holes, the front of rammer head groove is provided with No. three holes, No. three hole cross-under kelly, the one end of kelly is provided with the card hole, the inboard in rammer head groove is provided with iron rammer head, and the front of iron rammer head is provided with No. four holes, the top of iron head is provided with No. five holes, No. five holes have No. two screws through No. five iron plates, the bottom of iron head is provided with, the top of the iron plate is provided with a six-number hole, and two rammer heads are conveniently selected and installed by fixing a rammer head groove at the bottom of the steel groove.

The patent No. 201821001046.5 discloses a shock-absorbing handrail of a tamper, which comprises an upper handrail and a lower handrail, wherein the upper handrail and the lower handrail are movably connected through a connecting piece; the bottom of the lower handrail is fixedly connected with a handrail fixing sleeve, and a damping block is fixedly connected on the handrail fixing sleeve; the handrail fixing sleeve is fixedly connected with a handrail fixing plate of the base through a fastener, and a damping block is arranged on the handrail fixing sleeve to damp the handrail, so that the handrail and the bottom plate are prevented from forming resonance, and the vibration of the handrail is reduced; the vibration received by the hands of the workers is reduced, and the pain of the workers is reduced.

However, above-mentioned patent still has the problem when using, there are two belts in the patent one, but its in-process of adjusting can only adjust the rate of tension of one of them belt, though set up the tamper groove through the bottom at the steel bay in the patent two, change iron rammer head and the wooden rammer head that can be convenient, but its iron rammer head or wooden rammer head need whole change after damaging, cause with high costs, patent three sets up the snubber block on handrail fixed sheathe in and gives the handrail shock attenuation, but its shock attenuation effect is not good, therefore, need one kind can adjust the rate of tension of two drive belts simultaneously, and convenient to detach need not change whole rammer head and just can continue to use, reduce use cost, the effectual rammer compactor of shock attenuation.

Disclosure of Invention

The invention mainly aims to provide a ground compactor for a construction site, which can simultaneously adjust the tension degree of two driving belts, is convenient to disassemble and can be continuously used without replacing the whole compactor head, reduces the use cost, has good damping effect, and can effectively solve the problems in the background technology.

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

a ground compactor for construction sites comprises a base plate, wherein a handrail is arranged at the top of the base plate close to one end of the base plate, a transmission mechanism with a belt tensioning assembly is arranged at the top of the base plate and comprises support plates connected to the base plate in a sliding manner, a connecting shaft is arranged between the two support plates, a transmission wheel a connected with a power assembly through a first transmission belt is arranged on the connecting shaft, a transmission wheel b connected with a transmission wheel c arranged on an installation shaft through a second transmission belt is arranged on one side of the transmission wheel a on the connecting shaft, an eccentric plate with adjustable weight is arranged on the installation shaft, a detachable rammer arranged on the installation shaft is arranged below the eccentric plate, two ends of the installation shaft are connected with connecting seats fixed on the base plate through connecting arms, the belt tensioning assembly comprises connecting plates fixed on two sides of the support, the connecting plate is close to the two ends of the connecting plate and is sleeved on the light bars fixed on the bottom plate through the base, the connecting plate is positioned between the two light bars and is in threaded connection with the lead screw fixed on the bottom plate through the base, one end of the lead screw is fixedly provided with a bevel gear a driven by a motor A, the bevel gear a is meshed with a bevel gear b in threaded connection with the screw, and the screw is in threaded connection with the supporting frame and is connected with a tension roller installed on the supporting frame through a connecting structure.

Further, the supporting rack is including being located first drive belt both sides and being fixed in the bottom plate on and set up the bearing plate in the waist hole of rectangular shape, one of them the outside of bearing plate is located the below in waist hole and is equipped with rather than integrated into one piece's curb plate, connection structure is including cup jointing the sleeve on the screw rod, telescopic top is equipped with rather than integrated into one piece and is fixed in the solid fixed ring of tensioning roller one end.

Furthermore, the power assembly comprises a motor B which is arranged on the bottom plate through a motor frame, and an output shaft of the motor B is provided with a driving wheel which is connected with the driving wheel a through a first driving belt.

Furthermore, the bottom of the support plate is provided with a sliding block matched with a sliding groove arranged on the bottom plate.

Further, the eccentric plate includes that it installs in the epaxial fan-shaped eccentric plate body of installation through the go-between, circular mounting hole has been seted up on the fan-shaped eccentric plate body, it is equipped with the back shaft fixed through the partition frame to lie in its central department in the circular mounting hole, the cover is equipped with a plurality of counter weight rings on the back shaft, the both sides of fan-shaped eccentric plate body are equipped with through the fix with screw and the cover locates the spacing frame on the back shaft.

Furthermore, the separation frame comprises a ring seat a fixed on the supporting shaft, and a plurality of connecting rods connected with the circular mounting holes are symmetrically arranged on the ring seat a.

Furthermore, the limiting frame comprises a ring seat b movably arranged on the supporting shaft, and a plurality of limiting rods which are integrally formed with the ring seat b and are fixed with the fan-shaped eccentric plate body through screws are symmetrically arranged on the ring seat b.

Further, the rammer includes that the top is equipped with the last casing with the hangers that the installation axle links to each other, the bottom of going up the casing is equipped with rather than the lower casing of looks joint, it has formed between casing and the lower casing and has held the chamber to go up, the inside packing that holds the chamber has the balancing weight, the both sides of going up casing and casing down are passed through the fix with screw and are strengthened the strip.

Furthermore, the balancing weight includes the shell along with the shape with last casing, the inner shell has been placed to the inside of shell, solid piece has been placed to the inside of inner shell, set up through two symmetries between shell, inner shell and the solid piece and erect the spacing hub connection on last casing and the lower casing.

Furthermore, the handrail comprises a handrail body fixed on the bottom plate through a mounting plate, a damping block fixed on the bottom plate is arranged at the bottom of the handrail body, a rubber handle with a cavity inside is fixedly arranged at the end part of the handrail body, and a plurality of cylindrical elastic cushions are uniformly arranged inside the cavity.

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

firstly, the motor drives the screw rod to rotate, so that the connecting plate is driven to slowly move along the screw rod to drive the supporting plate to move back and forth along the sliding groove, the tightness of the second transmission belt is adjusted, the smooth rod plays a guiding role, the balance of the connecting plate in the process of moving along the screw rod is kept, the bevel gear a rotates along with the rotation of the screw rod to drive the bevel gear b to drive the screw rod to rotate, the tensioning roller is driven to move up and down along the waist hole, the tightness of the first transmission belt is adjusted, the situation that the first transmission belt and the second transmission belt are loosened to influence use in the use process is avoided, linkage is achieved through the common matching of the screw rod, the bevel gear a, the bevel gear b and the screw rod, the adjustment is convenient, and the tightness of the first transmission belt and the second transmission belt.

Secondly, the weight of the eccentric plate can be changed by changing the number of the counterweight rings, so that the purpose of adjusting the beating strength of the rammer is achieved, the weights on two sides of the eccentric plate can be balanced by arranging the separation frame, the problem that the eccentric plate is inclined in the motion process and damaged due to the fact that the weights on two sides of the eccentric plate are inconsistent is solved, the counterweight rings can be limited by arranging the limiting frame, and the eccentric rings are prevented from flying out in the motion process.

Thirdly, in the process of tamping, the bottom of the rammer is damaged most, the rammer is arranged in a mode that an upper shell and a lower shell are connected in a clamping mode, the rammer is convenient to disassemble, the upper shell can be filled with balancing weights in the lower shell, the balancing weights are arranged in a mode that outer shells, inner shells and solid blocks are arranged, only the lower shell needs to be replaced without whole replacement, if the outer shells of the balancing weights are damaged in the using process, the damaged outer shells can be replaced, the use cost is reduced, the outer shells, the inner shells and the solid blocks are connected with the upper shell and the lower shell together through limiting shafts, the stability of the rammer is enhanced, reinforcing strips are fixed on the two sides of the upper shell and the lower shell through screws, and the strength of the rammer is enhanced.

Fourthly, the bottom of the handrail body is provided with the damping block fixed on the bottom plate, and the damping block is matched with the cylindrical elastic pad in the rubber handle, so that the aim of reducing vibration is fulfilled, resonance with the hands of workers is avoided, and the pain of the workers is relieved.

Drawings

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

FIG. 2 is an exploded view of a portion of the structure of FIG. 1 in accordance with the present invention;

FIG. 3 is a schematic structural view of the belt tensioner assembly of the present invention;

FIG. 4 is a schematic diagram of a portion of the structure of FIG. 3 in accordance with the present invention;

FIG. 5 is an exploded view of the rammer construction of the present invention;

FIG. 6 is a schematic view of another angle of FIG. 5 according to the present invention;

FIG. 7 is a schematic structural view of an eccentric plate according to the present invention;

FIG. 8 is a schematic diagram of a portion of the structure of FIG. 7 in accordance with the present invention;

FIG. 9 is a partial structural view of the rubber handle of the present invention.

In the figure: 1. a motor B; 2. a support frame; 3. a damper block; 4. a base plate; 5. mounting a plate; 6. a rubber handle; 7. a handrail body; 8. a motor frame; 9. a drive wheel; 10. a side plate; 11. a first drive belt; 12. a support plate; 13. a connecting shaft; 14. a transmission wheel a; 15. hanging a lug; 16. a connecting ring; 17. a second belt; 18. a transmission wheel c; 19. installing a shaft; 20. a connecting arm; 21. an upper housing; 22. a lower housing; 23. a reinforcing strip; 24. a limiting shaft; 25. a connecting seat; 26. a chute; 27. a bevel gear a; 28. a base body; 29. a bevel gear b; 30. a tension roller; 31. a lead screw; 32. a polished rod; 33. a connecting plate; 34. a sector eccentric plate body; 35. a sliding block; 36. a fixing ring; 37. a sleeve; 38. a waist hole; 39. a screw; 40. a housing; 41. an inner shell; 42. a solid block; 43. a ring seat b; 44. a support shaft; 45. a counterweight ring; 46. a limiting rod; 47. a ring seat a; 48. a connecting rod; 49. a circular mounting hole; 50. a cavity; 51. an elastic pad; 52. a transmission wheel b; 53. and a motor A.

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.

As shown in fig. 1 to 9, the present embodiment provides a ground compactor for construction sites, which includes a bottom plate 4, a handrail is disposed at the top of the bottom plate 4 near one end of the bottom plate, a transmission mechanism with a belt tensioning assembly is disposed at the top of the bottom plate 4, the transmission mechanism includes support plates 12 slidably connected to the bottom plate 4, a connecting shaft 13 is disposed between the two support plates 12, a driving wheel a14 connected to a power assembly through a first driving belt 11 is disposed on the connecting shaft 13, a driving wheel b52 connected to a driving wheel c18 disposed on an installation shaft 19 through a second driving belt 17 is disposed at one side of the driving wheel a14 on the connecting shaft 13, an eccentric plate with adjustable weight is disposed on the installation shaft 19, a detachable ram mounted on the installation shaft 19 is disposed below the eccentric plate, two ends of the installation shaft 19 are connected to a connecting base 25 fixed on the, the belt tensioning assembly comprises connecting plates 33 which are fixed on two sides of the support plate 12 through screws and used for connecting the two support plates 12, the connecting plates 33 are sleeved with light bars 32 which are fixed on the bottom plate 4 through a base body 28 near two ends of the connecting plates, the connecting plates 33 are positioned between the two light bars 32 and are connected with a lead screw 31 which is fixed on the bottom plate 4 through the base body 28 in a threaded manner, one end of the lead screw 31 is fixedly provided with a bevel gear a27 driven by a motor A53, the bevel gear a27 is engaged with a bevel gear b29 which is screwed on a screw 39, and the screw 39 is screwed on the support frame and is connected with a tensioning roller 30 which is arranged on the support.

The power assembly drives the driving wheel a14 to rotate, and under the driving action of the first driving belt 11 and the second driving belt 17, the mounting shaft 19 is driven to rotate so as to drive the eccentric plate to rotate to strike the rammer, so that the rammer is rammed on the ground by the vibration of the rammer, and the rammer moves on the ground.

Preferably, the supporting frame comprises supporting plates 2 which are located on two sides of the first transmission belt and fixed on the bottom plate and provided with elongated waist holes, one of the supporting plates 2 is located below the waist hole 38, the side plate 10 is integrally formed with the supporting plate, the connecting structure comprises a sleeve 37 sleeved on a screw rod 39, and a fixing ring 36 which is integrally formed with the sleeve 37 and fixed at one end of the tension roller 30 is arranged at the top of the sleeve 37.

The motor A53 drives the screw rod 31 to rotate, so that the connecting plate 33 is driven to slowly move along the screw rod 31 to drive the support plate 12 to move back and forth along the sliding groove 26, the tension of the second transmission belt 17 is adjusted, the feed bar 32 plays a guiding role, the balance of the connecting plate 33 in the moving process along the screw rod 31 is kept, the bevel gear a27 rotates along with the rotation of the screw rod 31 to drive the bevel gear b29 to drive the screw rod 39 to rotate, the tensioning roller 30 is driven to move up and down along the waist hole 38, the tension of the first transmission belt 11 is adjusted, the situation that the first transmission belt 11 and the second transmission belt 17 are loosened to influence use in the using process is avoided, the linkage is realized through the common matching of the screw rod 31, the bevel gear a27, the bevel gear b29 and the screw rod 39, the adjustment is convenient, and the tensions of the first transmission belt 11 and the.

Preferably, the power assembly comprises a motor B1 mounted on the bottom plate 4 through a motor frame 8, and a driving wheel 9 connected with a driving wheel a14 through a first driving belt 11 is arranged on an output shaft of the motor B1.

Preferably, the bottom of the support plate 12 is provided with a sliding block 35 which is matched with the sliding groove 26 arranged on the bottom plate 4.

Preferably, the eccentric plate comprises a fan-shaped eccentric plate body 34 mounted on the mounting shaft 19 through a connecting ring 16, a circular mounting hole 49 is formed in the fan-shaped eccentric plate body 34, a supporting shaft 44 fixed through a separating frame is arranged in the center of the circular mounting hole 49, a plurality of counterweight rings 45 are sleeved on the supporting shaft 44, and limiting frames fixed through screws and sleeved on the supporting shaft 44 are arranged on two sides of the fan-shaped eccentric plate body 34; the separating frame comprises a ring seat a47 fixed on the supporting shaft 44, and a plurality of connecting rods 48 connected with a circular mounting hole 49 are symmetrically arranged on the ring seat a 47; the limiting frame comprises a ring seat b43 movably arranged on the supporting shaft 44, and a plurality of limiting rods 46 which are integrally formed with the ring seat b43 and fixed with the fan-shaped eccentric plate 34 through screws are symmetrically arranged on the ring seat b 43.

The weight that can realize changing the eccentric plate through the number that changes counterweight ring 45 reaches the purpose of adjusting the strength of pounding of rammer, and the setting of separation frame can make the weight of eccentric plate both sides balanced, avoids appearing leading to the eccentric plate to incline at the in-process of motion and cause its problem of damage because of the weight nonconformity that appears the eccentric plate both sides, and the setting of spacing frame can be spacing to counterweight ring 45, avoids at the in-process eccentric ring 45 departure of motion.

Preferably, the rammer comprises an upper shell 21 provided with a lug 15 connected with a mounting shaft 19 at the top, a lower shell 22 clamped with the upper shell 21 is arranged at the bottom of the upper shell 21, a containing cavity is formed between the upper shell 21 and the lower shell 22, a balancing weight is filled in the containing cavity, and reinforcing strips 23 are fixed on two sides of the upper shell 21 and the lower shell 22 through screws; the balancing weight comprises an outer shell 40 which is shaped along with the upper shell 21, an inner shell 41 is placed inside the outer shell 40, a solid block 42 is placed inside the inner shell 41, and the outer shell 40, the inner shell 41 and the solid block 42 are connected through two limiting shafts 24 which are symmetrically arranged and erected on the upper shell 21 and the lower shell 22.

In the process of ramming, the bottom damage to the ram is the biggest, set the ram to the form of going up casing 21 and lower casing 22 looks joint, convenient to detach, the inside packing of going up casing 21 and lower casing 22 has the balancing weight, and the balancing weight sets to outer shell 40, the form of inner shell 41 and solid block 42, only need to change down casing 22 just can, and need not whole change, in the use process if the outer shell 40 of balancing weight also damaged, can change impaired outer shell 40, use cost is reduced, be connected outer shell 40 through spacing axle 24, inner shell 41 and solid block 42 and last casing 21 and lower casing 22 jointly, the stability of ram has been strengthened, the both sides of going up casing 21 and lower casing 22 are fixed with enhancement strip 23 through the screw, the intensity of ram has been strengthened.

Preferably, the handrail comprises a handrail body 7 fixed on the bottom plate 4 through a mounting plate 5, a damping block 3 fixed on the bottom plate 4 is arranged at the bottom of the handrail body 7, a rubber handle 6 with a cavity 50 inside is fixedly arranged at the end of the handrail body 7, and a plurality of cylindrical elastic pads 51 are uniformly arranged inside the cavity 50.

The bottom of the handrail body 7 is provided with the damping block 3 fixed on the bottom plate 4, the damping block 3 is matched with the cylindrical elastic pad 51 in the rubber handle 6, so that the aim of reducing vibration is achieved, resonance with the hands of workers is avoided, and the pain of the workers is relieved.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. 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.

Claims

1. The utility model provides a ground rammer compactor for building site, includes the bottom plate, its characterized in that: the top of the bottom plate is provided with a handrail near one end thereof, the top of the bottom plate is provided with a transmission mechanism with a belt tensioning assembly, the transmission mechanism comprises support plates connected to the bottom plate in a sliding manner, a connecting shaft is arranged between the two support plates, the connecting shaft is provided with a driving wheel a connected with the power assembly through a first driving belt, one side of the connecting shaft, which is positioned on the driving wheel a, is provided with a driving wheel b connected with a driving wheel c arranged on the mounting shaft through a second driving belt, the mounting shaft is provided with an eccentric plate with adjustable weight, a detachable rammer arranged on the mounting shaft is arranged below the eccentric plate, two ends of the mounting shaft are connected with a connecting seat fixed on the bottom plate through connecting arms, the belt tensioning assembly comprises connecting plates fixed on two sides of the support plates through screws and used for connecting the two support plates, lie in the spiro union on fixing the lead screw on the bottom plate through the pedestal between two polished rod on the connecting plate, the one end fixed mounting of lead screw has by motor A driven bevel gear an, the meshing has the bevel gear b of spiro union on the screw rod on bevel gear a, the screw rod spiro union is connected on the supporting rack and through connection structure and the tensioning roller of installing on the supporting rack, the supporting rack is including being located first drive belt both sides and being fixed in on the bottom plate and set up the bearing plate in the waist hole of rectangular shape, one of them the outside of bearing plate is located the below in waist hole and is equipped with rather than integrated into one piece's curb plate, connection structure is including cup jointing the sleeve on the screw rod, telescopic top is equipped with rather than integrated into one piece and is fixed in the.

2. A ground compactor for construction sites according to claim 1, characterized in that: the power assembly comprises a motor B which is arranged on the bottom plate through a motor frame, and a driving wheel which is connected with a driving wheel a through a first driving belt is arranged on an output shaft of the motor B.

3. A ground compactor for construction sites according to claim 1, characterized in that: the bottom of the support plate is provided with a sliding block matched with a sliding groove arranged on the bottom plate.

4. A ground compactor for construction sites according to claim 1, characterized in that: the eccentric plate comprises a fan-shaped eccentric plate body which is installed on the installation shaft through a connecting ring, a circular installation hole is formed in the fan-shaped eccentric plate body, a supporting shaft which is fixed through a separation frame is arranged in the center of the circular installation hole, a plurality of counterweight rings are sleeved on the supporting shaft, and limiting frames which are fixed through screws and sleeved on the supporting shaft are arranged on the two sides of the fan-shaped eccentric plate body.

5. The ground compactor for construction sites according to claim 4, wherein: the separating frame comprises a ring seat a fixed on the supporting shaft, and a plurality of connecting rods connected with the circular mounting holes are symmetrically arranged on the ring seat a.

6. The ground compactor for construction sites according to claim 5, wherein: the limiting frame comprises a ring seat b movably arranged on the supporting shaft, and a plurality of limiting rods which are integrally formed with the ring seat b and are fixed with the fan-shaped eccentric plate body through screws are symmetrically arranged on the ring seat b.

7. A ground compactor for construction sites according to claim 1, characterized in that: the rammer includes that the top is equipped with the last casing with the hangers that the installation axle links to each other, the bottom of going up the casing is equipped with the lower casing rather than the looks joint, it has formed the chamber that holds to go up between casing and the lower casing, the inside packing that holds the chamber has the balancing weight, the both sides of going up casing and casing down have the enhancement strip through the fix with screw.

8. The ground compactor for construction sites according to claim 7, wherein: the balancing weight comprises an outer shell which is shaped along with the upper shell, an inner shell is placed in the outer shell, solid blocks are placed in the inner shell, and the outer shell, the inner shell and the solid blocks are connected through two limiting shafts which are symmetrically arranged and erected on the upper shell and the lower shell.

9. A ground compactor for construction sites according to claim 1, characterized in that: the handrail comprises a handrail body fixed on the bottom plate through a mounting plate, a damping block fixed on the bottom plate is arranged at the bottom of the handrail body, a rubber handle with a cavity inside is fixedly arranged at the end part of the handrail body, and a plurality of cylindrical elastic pads are uniformly arranged inside the cavity.