CN213654144U

CN213654144U - Down-pressing type troweling machine

Info

Publication number: CN213654144U
Application number: CN202022219148.8U
Authority: CN
Inventors: 贾广德
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-09
Filing date: 2020-10-09
Publication date: 2021-07-09
Anticipated expiration: 2030-10-09

Abstract

The utility model provides a down-pressing type troweling machine, which comprises a mounting seat, the top of the mounting seat is vertically provided with a central shaft, the top transmission of the central shaft is connected with a power device, one side of the power device is provided with a support rod, the support rod is provided with a handrail, the outside of the central shaft is sleeved with a sliding sleeve along the axial sliding direction thereof, the lower end of the sliding sleeve is provided with a ring groove, the outside of the central shaft above the sliding sleeve is sleeved with a cover plate, the cover plate and the sliding sleeve are rotatably connected through a pressure bearing, the upper part of the cover plate is provided with a down-pressing device for driving the cover plate to move downwards along the central shaft, the top of the mounting seat is arrayed with a troweling component around the central circumference thereof, the troweling component is provided with a support; the structure of the utility model is reasonable, the troweling machine can be operated to trowel the ground by holding the handrail, and the operation is convenient; the mounting seat and the central shaft are integrally formed in a casting mode, and the mounting seat is easy to process.

Description

Down-pressing type troweling machine

Technical Field

The utility model belongs to the technical field of the smoothing machine, concretely relates to push down formula smoothing machine.

Background

At present, most ground infrastructure projects need to use concrete, and when the concrete is paved, the surface needs to be further smoothed, and a smoothing machine needs to be used for smoothing.

In the prior art, a chinese utility model with application number CN201621360866.4 discloses an adjusting mechanism for troweling machine blade angle, which includes a cross frame and a troweling machine blade, the troweling machine blade has a blade shaft, the troweling machine blade is mounted on the cross frame through the blade shaft, a crank rod is fixed on the blade shaft, the crank rod has a crank arm-shaped structure, the lower end of the crank rod is fixed on the blade shaft, the other end of the crank rod is an upward extending end, a blade adjusting disk capable of moving up and down is mounted on the cross frame, and a shifting fork is also arranged on the blade adjusting disk; the position that the shift fork contacts blade adjusting disk can reciprocate by the adjustment shift fork, and then blade adjusting disk acts on the bent lever and stretches out the end and reciprocate, drive the upset of troweling machine blade.

However, in the prior art, the cross is complex in structure and not easy to process and maintain, and the end of the shifting fork and the blade adjusting disk are contacted and rubbed during the smearing process, so that the end of the shifting fork and the blade adjusting disk are easily abraded, and the shifting fork and the blade adjusting disk need to be frequently replaced and maintained, and the use cost is high.

Therefore, a press-down troweling machine with reasonable structure, easy processing and maintenance, convenient operation and lower use cost needs to be designed to solve the technical problems faced at present.

Disclosure of Invention

To the not enough that exists among the prior art, the utility model provides a rational in infrastructure, easily processing and maintenance, convenient operation, lower down pressure formula smoothing machine of use cost.

The technical scheme of the utility model is that: a downward-pressing troweling machine comprises a mounting seat, wherein the top of the mounting seat is vertically provided with a central shaft, the top of the central shaft is in transmission connection with a power device, a support rod is arranged at one side of the power device, a handrail is arranged on the support rod, a sliding sleeve is sleeved outside the central shaft along the axial direction of the central shaft in a sliding way, the lower end of the sliding sleeve is provided with a ring groove, the outer side of the central shaft above the sliding sleeve is sleeved with a cover plate, the cover plate is rotationally connected with the sliding sleeve through a pressure bearing, a pressing device for driving the cover plate to move downwards along the central shaft is arranged above the cover plate, at least two troweling assemblies are arrayed on the top of the mounting seat around the center circumference of the mounting seat, each troweling assembly is provided with a support arm, one end of the support arm is provided with a swing shaft matched with the ring groove, and a hinged arm hinged with the mounting seat is vertically arranged on the support arm.

The downward pressing device is provided with a shifting fork, the middle part of the shifting fork is hinged to the bottom of the power device, and one end of the shifting fork is abutted to the cover plate; the support rod is a hollow pipe body, an axle seat is arranged at one end, deviating from the power device, of the support rod, a lead screw is arranged inside the axle seat in a rotating mode, a hand wheel is arranged at one end of the lead screw, a sliding nut is assembled outside the other end of the lead screw, the sliding nut is in single-degree-of-freedom sliding connection with the support rod, and the bottom end of the sliding nut is connected with the shifting fork through a steel wire.

The steel wire is arranged in the guide groove, and one end of the steel wire is fixedly connected with the fixing groove.

The power device is provided with a speed reducer and an engine arranged at the top of the speed reducer, and the engine is in transmission connection with the speed reducer.

The bottom of support arm is provided with the blade of polishing, the top of blade of polishing is provided with the installation roof beam, the installation roof beam with the support arm passes through bolted connection.

The four corners of the troweling blade are bent upwards to form folding angles.

The utility model discloses a handrail, including handrail, first connecting pipe and second connecting pipe, the one end of handrail corresponds and is provided with first connecting pipe and second connecting pipe, the inside of second connecting pipe is rotated and is provided with the connecting rod, be close to on the connecting rod the one end of first connecting pipe is provided with the external screw thread, the other end of connecting rod is provided with the handle, the inside of first connecting pipe be provided with this external screw thread assorted internal thread, be provided with the installation pipe on the bracing piece, the clearance between first connecting pipe and the second connecting pipe with the length phase-match of installation pipe.

Teeth are circumferentially arrayed on two end faces of the mounting pipe, the end face, close to the second connecting pipe, of the first connecting pipe and the end face, close to the first connecting pipe, of the second connecting pipe.

The outer side of the troweling assembly is provided with a protective cover in a surrounding mode, and the protective cover is fixedly connected with the power device.

The mounting seat is of a square plate body structure, and four troweling assemblies are arrayed on the top of the mounting seat around the center circumference of the mounting seat.

The utility model has the advantages that: the utility model has reasonable structure, the operation personnel can operate the troweling machine to carry out troweling operation on the ground through the hand-held handrail, and the operation is convenient; the mounting seat and the central shaft are integrally formed in a casting mode, so that the strength is high, and the processing is easy; the cover plate is rotationally connected with the sliding sleeve through the pressure bearing, so that a larger axial force can be borne, meanwhile, the abrasion between the cover plate and the sliding sleeve can be reduced, and the maintenance workload and the use cost are reduced; the apron can form between outside concrete and the inside pressure bearing and keep apart, prevents inside concrete particle gets into pressure bearing, guarantees pressure bearing normal life.

Drawings

Fig. 1 is a schematic structural view of the middle and lower pressing troweling machine of the present invention.

Fig. 2 is a schematic view of a partial structure of the medium-pressure troweling machine of the present invention.

Fig. 3 is a second partial schematic structure diagram of the medium-pressure troweling machine of the present invention.

Fig. 4 is a third schematic view of a partial structure of the medium-pressure troweling machine of the present invention.

Fig. 5 is a partial enlarged view of a portion a in fig. 4.

Fig. 6 is a fourth schematic view of a partial structure of the medium-pressure troweling machine of the present invention.

Fig. 7 is a fifth schematic view of a partial structure of the medium-pressure troweling machine of the present invention.

Fig. 8 is a schematic structural view of the middle armrest of the present invention.

Fig. 9 is a sixth schematic view of a partial structure of the medium-pressure troweling machine of the present invention.

Detailed Description

The following describes the embodiments of the present invention with reference to the drawings and examples.

As shown in fig. 1 to 3, a press-down type troweling machine includes a mounting base 1, a central shaft 4 is vertically disposed on the top of the mounting base 1, a power device is connected to the top of the central shaft 4 in a transmission manner, a support rod 3 is disposed on one side of the power device, a handrail 16 is disposed on the support rod 3, when the troweling machine is used, an operator holds the handrail 16 to fix the power device, the power device drives the central shaft 4 to rotate, a sliding sleeve 5 is slidably disposed on the outside of the central shaft 4 along the axial direction of the central shaft, the sliding sleeve 5 is a circular tube structure, a ring groove 7 is disposed at the lower end of the sliding sleeve 5, a cover plate 6 is disposed on the outside of the central shaft 4 above the sliding sleeve 5, the cover plate 6 is rotatably connected to the sliding sleeve 5 through a pressure bearing 9, a press-down device is disposed above the cover plate 6 and drives the center shaft 4 to, the mounting seat 1 is of a square plate structure, four troweling assemblies 2 are arrayed on the top of the mounting seat 1 around the center circumference of the mounting seat, each troweling assembly 2 is provided with a support arm 201, one end of each support arm 201 is provided with a swing shaft 206 matched with the ring groove 7, an articulated arm 205 hinged with the mounting seat 1 is vertically arranged on each support arm 201, each articulated arm 205 is of a cylindrical structure integrated with the support arm 201, and the outer diameter of each articulated arm 205 is matched with the ring groove 7; in this embodiment, the central shaft 4 is in transmission connection with a power device, the power device is fixed by an operator holding a handrail 16 connected to the support rod 3, the central shaft 4 is driven to rotate by the power device, the central shaft 4 drives the mounting seat 1 and the troweling assembly 2 to rotate to trowel the bottom surface, when the troweling assembly 2 is subjected to angle adjustment, the cover plate 6 is driven by the pressing device to move downwards along the central shaft 4, meanwhile, the cover plate 6 pushes the sliding sleeve 5 to move downwards, the annular groove 7 moves downwards along with the sliding sleeve 5 and simultaneously drives the swing shaft 206 to move downwards, and the swing shaft 206 moves downwards to enable the troweling assembly 2 to swing downwards along the hinge joint between the hinge arm 205 and the mounting seat 5, so that the angle adjustment of the troweling assembly 2 is realized; in addition, the pressure applied to the cover plate 6 by the pressing device is released, the troweling assembly 2 restores to be horizontal under the action of gravity, and the ring groove 7 and the sliding sleeve 5 are driven to reset through the swing shaft 206; the troweling machine can be operated by an operator to perform troweling operation on the ground by holding the handrail 16, so that the troweling machine is convenient to operate, the mounting seat 1 and the central shaft 4 are integrally formed in a casting mode, the strength is high, and the troweling machine is easy to process; the cover plate 6 is rotationally connected with the sliding sleeve 5 through the pressure bearing 9, so that a large axial force can be borne, meanwhile, the abrasion between the cover plate 6 and the sliding sleeve 5 can be reduced, and the maintenance workload and the use cost are reduced; the apron 6 can form between outside concrete and inside pressure bearing 9 and keep apart, prevents inside the concrete granule gets into pressure bearing, guarantees the normal life of pressure bearing 9, and is further, keeps apart the effect in order to promote, the middle part of apron 6 set up with pressure bearing 9 assorted recess, inside this recess of pressure bearing 9 activity embedding.

As a specific implementation manner of the pressing device, the pressing device is provided with a shifting fork 8, one part of the shifting fork 8 is a semicircular ring, the other part of the shifting fork 8 is a lath, the lath is fixedly connected with the middle part of the semicircular ring, two end parts of the semicircular ring are abutted with the top part of the cover plate 6, the lath is hinged with the bottom part of the speed reducer 10, namely, the middle part of the shifting fork 8 is hinged with the bottom part of the speed reducer 10, one end of the shifting fork 10 is abutted with the top part of the cover plate 6, one end of the shifting fork 10, which is deviated from the cover plate 6, is pulled up, the other end of the shifting fork 10 swings downwards to drive the cover plate 6 to move downwards, and after; wherein the power of the shifting fork 10 is realized by pulling a steel wire, as shown in fig. 1, 6 and 7, the support rod 3 is a hollow pipe body, a shaft seat 18 is arranged at one end of the support rod 3 which is far away from the power device, the shaft seat 18 is fixedly inserted into one end of the support rod 3, a lead screw 19 is rotatably arranged inside the shaft seat 18, one end of the lead screw 19 is provided with a hand wheel 15, the lead screw 19 can be conveniently rotated by the hand wheel 15, a sliding nut 20 is assembled outside the other end of the lead screw 19, the sliding nut 20 is in single-degree-of-freedom sliding connection with the support rod 3, the bottom end of the sliding nut 20 is connected with the shifting fork 8 by the steel wire, one end of the steel wire 12 is fixedly connected with the bottom end of the sliding nut 20, the other end of the steel wire extends downwards along the inside of the support rod 3, a hole for leading the, the lead screw 19 is rotated through the hand wheel 15, the sliding nut 20 can be moved along the axial direction of the support rod 3 through the thread structure, the steel wire 12 can be pulled or released, the shifting fork 8 can swing by pulling the steel wire 12, and the cover plate 6 is pressed downwards; as an embodiment of the single-degree-of-freedom sliding connection between the sliding nut 20 and the support rod 3, a slide way 16 parallel to the axial direction of the support rod 3 is formed on the side surface of the support rod 3, and a positioning bolt 17 connected with the sliding nut 20 is arranged inside the slide way 16.

As shown in fig. 4 and 5, as a structure of the shifting fork 8 for fixing the steel wire 12, one end of the shifting fork 10 away from the cover plate 6 is provided with a circular arc-shaped guide groove 801, the bottom of the shifting fork 10 is provided with a fixing groove 802 parallel to the shifting fork, the steel wire passes through the guide groove 801 from top to bottom, the steel wire 12 is transited to the fixing groove 802 in an arc shape through the guiding function of the guide groove 801, and the steel wire can be fixed with the fixing groove 802 by adopting a steel wire 12 fixing buckle or welding mode when entering the fixing groove 802.

As an embodiment of the power device, the power device has a speed reducer 10 and an engine 11 disposed on the top of the speed reducer 10, and the engine 11 is in transmission connection with the speed reducer 10, wherein the speed reducer 10 and the engine 11 are both in the prior art, and therefore, detailed description thereof is omitted.

As a specific embodiment of the troweling assembly 2, a troweling blade 202 is arranged at the bottom of the support arm 201, the troweling blade 202 is detachably connected with the support arm 201, an installation beam 203 is arranged at the top of the troweling blade 202, the installation beam 203 is welded and fixed at the top of the troweling blade 202, and the installation beam 203 is connected with the support arm 201 through a bolt; in order to avoid that the four corners of the troweling blade 202 affect the troweling effect of the ground, the four corners of the troweling blade 202 are bent upwards to form the break angles 204.

In order to adjust the angle between the armrest 16 and the support rod 3 and improve the comfort of the operator, as shown in fig. 8 and 9, a first connecting pipe 1601 and a second connecting pipe 1602 are correspondingly arranged at one end of the armrest 16, a connecting rod 23 is rotatably arranged inside the second connecting pipe 1062, an external thread is arranged at one end of the connecting rod 23 close to the first connecting pipe 1601, a handle 22 is arranged at the other end of the connecting rod 23, the connecting rod 23 can be conveniently rotated through the handle 22, an internal thread matched with the external thread is arranged inside the first connecting pipe 1601, an installation pipe 21 is arranged on the support rod 3, and the gap between the first connecting pipe 1601 and the second connecting pipe 1602 is matched with the length of the installation pipe 21; during the use, connecting rod 23 cartridge is in the inside of installation pipe 21, then rotates connecting rod 23 through handle 22, makes to be connected between connecting rod 23 and the first connecting pipe 1601, constantly rotatory connecting rod 23 make first connecting pipe 1601 and second connecting pipe 1602 with the tight fixed of installation pipe 21 clamp can, when needing to adjust handrail 16 angle, not hard up connecting rod 23 makes first connecting pipe 1601, second connecting pipe 1602 can wind connecting rod 23 rotation regulation handrail 16 with the release of installation pipe 21, the handrail is adjusted 16 and is accomplished the back and lock connecting rod 23 can.

In order to improve the friction force between the first connecting pipe 1601, the second connecting pipe 1602 and the installation pipe 21, teeth 1603 are arranged on both end faces of the installation pipe 21, the end face of the first connecting pipe 1601, which is close to the second connecting pipe 1602, and the end face of the second connecting pipe 1602, which is close to the first connecting pipe 1601, in a circumferential array, and the teeth 1603 are strip-shaped protruding structures arranged in a radial direction, after the connecting rod 23 is locked, the teeth 1603 between the first connecting pipe 1601, the second connecting pipe 1602 and the installation pipe 21 are engaged with each other, so that the sliding between the handrail 16 and the installation pipe 21 can be avoided when the handrail is used.

In order to improve the use safety, a protective cover 14 is arranged around the outer side of the troweling assembly 2, the protective cover 14 is fixedly connected with a power device, the power device is provided with a speed reducer 10 and an engine 11, and the troweling cover 14 is fixed on the top of the speed reducer 10 through bolts or welding.

The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.

Claims

1. A downward-pressing troweling machine is characterized by comprising an installation base, wherein the top of the installation base is vertically provided with a central shaft, the top of the central shaft is connected with a power device in a transmission way, one side of the power device is provided with a support rod, the support rod is provided with a handrail, the outside of the central shaft is sleeved with a sliding sleeve along the axial direction thereof in a sliding way, the lower end of the sliding sleeve is provided with a ring groove, the outer side of the central shaft above the sliding sleeve is sleeved with a cover plate, the cover plate is rotationally connected with the sliding sleeve through a pressure bearing, a pressing device for driving the cover plate to move downwards along the central shaft is arranged above the cover plate, at least two troweling assemblies are arrayed on the top of the mounting seat around the center circumference of the mounting seat, each troweling assembly is provided with a support arm, one end of the support arm is provided with a swing shaft matched with the ring groove, and a hinged arm hinged with the mounting seat is vertically arranged on the support arm.

2. The press-down trowel of claim 1, wherein: the downward pressing device is provided with a shifting fork, the middle part of the shifting fork is hinged to the bottom of the power device, and one end of the shifting fork is abutted to the cover plate; the support rod is a hollow pipe body, an axle seat is arranged at one end, deviating from the power device, of the support rod, a lead screw is arranged inside the axle seat in a rotating mode, a hand wheel is arranged at one end of the lead screw, a sliding nut is assembled outside the other end of the lead screw, the sliding nut is in single-degree-of-freedom sliding connection with the support rod, and the bottom end of the sliding nut is connected with the shifting fork through a steel wire.

3. The press-down trowel according to claim 2, wherein: the steel wire is arranged in the guide groove, and one end of the steel wire is fixedly connected with the fixing groove.

4. The press-down trowel of claim 1, wherein: the power device is provided with a speed reducer and an engine arranged at the top of the speed reducer, and the engine is in transmission connection with the speed reducer.

5. The press-down trowel of claim 1, wherein: the bottom of support arm is provided with the blade of polishing, the top of blade of polishing is provided with the installation roof beam, the installation roof beam with the support arm passes through bolted connection.

6. The press-down trowel of claim 5, wherein: the four corners of the troweling blade are bent upwards to form folding angles.

7. The press-down trowel of claim 1, wherein: the utility model discloses a handrail, including handrail, first connecting pipe and second connecting pipe, the one end of handrail corresponds and is provided with first connecting pipe and second connecting pipe, the inside of second connecting pipe is rotated and is provided with the connecting rod, be close to on the connecting rod the one end of first connecting pipe is provided with the external screw thread, the other end of connecting rod is provided with the handle, the inside of first connecting pipe be provided with this external screw thread assorted internal thread, be provided with the installation pipe on the bracing piece, the clearance between first connecting pipe and the second connecting pipe with the length phase-match of installation pipe.

8. The press-down trowel of claim 7, wherein: teeth are circumferentially arrayed on two end faces of the mounting pipe, the end face, close to the second connecting pipe, of the first connecting pipe and the end face, close to the first connecting pipe, of the second connecting pipe.

9. The press-down trowel of claim 1, wherein: the outer side of the troweling assembly is provided with a protective cover in a surrounding mode, and the protective cover is fixedly connected with the power device.

10. The press-down trowel of claim 1, wherein: the mounting seat is of a square plate body structure, and four troweling assemblies are arrayed on the top of the mounting seat around the center circumference of the mounting seat.