CN220469424U - Concrete curved surface trowelling tool - Google Patents

Abstract

The utility model aims to provide a concrete curved surface trowelling tool, which comprises a roller and a hand lever, wherein the hand lever is connected with a motor for driving the roller to rotate, the motor is arranged in an inner cavity of the roller, and a control device which is electrically connected with the motor and used for controlling the motor to rotate positively and negatively is arranged on the hand lever. The trowelling tool is simple in operation process, labor-saving and controllable in advancing direction of the work, so that the physical strength of operators is saved, the construction speed is improved, and the construction time is shortened.

Description

Concrete curved surface trowelling tool

Technical Field

The utility model relates to the technical field of construction machinery equipment, in particular to a tool design in a curved surface trowelling process of concrete.

Background

In the field of construction, in order to prevent the concrete on the surface of the building from generating honeycomb pitting, and to ensure the overall quality of the concrete, the concrete trowelling tool is widely applied to trowelling and finishing work of structures such as floors, walls, ceilings and the like. Along with the increasing demands of building designs on curved surfaces, various curved surface forms such as cylindrical surfaces, circular arc surfaces, conical table surfaces and the like are increasingly applied to the current buildings, and common curved surface trowelling tools are manually pushed to operate.

The utility model discloses a curved surface trowelling tool as disclosed in chinese patent document of publication No. CN201922223818, trowelling tool structure is including fixed plate and operating handle, and the below of fixed plate is provided with many receipts light cylinders that are parallel to each other, and the both ends of receipts light cylinder are rotated through the pivot and are connected with the one end of direction slide bar, and the other pot head of direction slide bar is equipped with the direction sliding sleeve that its one end is connected with the fixed plate, is provided with the connecting rod between the direction slide bar at receipts light cylinder both ends, and the below of fixed plate and all be provided with flexible adjusting device between every connecting rod. The trowelling tool has the characteristics of simple and quick use, simplified operation steps and the like, and is frequently used in trowelling construction of curved-surface buildings.

However, there are certain technical drawbacks to this type of tool, in the use of the troweling tool described above, since this type of tool has a plurality of light receiving rollers and a large number. It is not easy for the operator to control the working direction in which the drum travels clockwise and counterclockwise during operation. The power of the tool is the driving force of an operator, so that the operator needs to push the tool laboriously to perform construction operation. In the practical application process, the tool cannot meet the requirements of constructors on convenient operation and reduction of construction time.

Disclosure of Invention

The utility model aims to provide a concrete curved surface trowelling tool, which is simple and labor-saving in operation process, wherein the rotation of a roller of the tool is driven by electric power, and the clockwise and anticlockwise rotation directions of the roller during working are controllable, so that the physical strength of operators is saved, the construction speed is improved, and the construction time is shortened.

The technical aim of the utility model is realized by the following technical scheme:

the utility model provides a concrete curved surface trowelling tool, contains cylinder and hand lever, the hand lever is connected with and is used for the drive the rotatory motor of cylinder, the motor arrange in the inner chamber of cylinder, be equipped with on the hand lever with the motor electricity is connected and is used for controlling the controlling means of motor forward and reverse rotation.

The trowelling tool is a hollow roller with a smooth surface, the hollow roller is externally connected with the hand lever, the roller utilizes the characteristic of smooth surface of the roller, and the pressure generated by the gravity of the roller during operation acts on the surface of concrete, so that the problem of honeycomb pitting surface on the surface of the concrete can be solved, and the quality of the appearance is improved. The motor is connected with the hand lever in a welding mode, so that the motor and the hand lever are integrated, and the motor is prevented from rotating when the roller rotates. The motor is prevented from being damaged due to rotation, and the service life of the motor is prolonged.

The motor is used for driving the roller to rotate, and the transmission structure can be selected from various common modes in the prior art, such as a rotating shaft, a rack, a gear combination, a bearing and the like. Specifically, for example, the output end of the motor is a gear, and the gear is connected to a rotating shaft after being subjected to speed regulation through a plurality of proper gear combinations, and the rotating shaft is connected to the axial center of the roller.

The motor is connected with the control platform through an electric wire; the control platform is arranged on the hand lever, and an operator can adjust the forward rotation and reverse rotation states of the motor through the control platform. The output of the motor in the forward/reverse direction is the clockwise/anticlockwise rotation direction of the roller, and the clockwise/anticlockwise rotation direction of the roller is often closely related to the travelling direction of the trowelling tool operated by an operator. By using the motor as power, the physical strength of operators is greatly saved, the construction time is greatly saved, and the construction efficiency is improved.

Preferably, one side of the roller is a sealing plate, and a through hole for the hand lever to pass through is formed in the sealing plate; the other side is a hollowed-out plate, and the hollowed-out plate is detachably connected with the roller.

One side of the roller is of a closed structure, a circular hole is formed in the middle of the roller and used for enabling the motor to penetrate through the circular hole to be connected with the hand-held rod, and the other side of the roller is of a detachable structure. The detachable structure which is mature in the prior art can be selected, such as a male buckle fit, a female buckle fit, a bolt and nut fit and a clamping strip clamping groove fit. And the four corners of the inner part of the circular ring at the outer edge of the roller are respectively welded with a connecting flat steel which is used for being connected with the hollowed-out plate in a bolt connection mode. In the practical application process, when the inside of cylinder breaks down and needs maintenance, utilize the spanner to demolish outside dwang, connection band iron and fretwork board in its fretwork one side. And simultaneously, separating the hollowed-out plate from the roller by using a spanner. At this time, the maintenance personnel can check the fault to perform maintenance. And when the maintenance is finished, the assembly is performed again, so that the operation is convenient and rapid.

Through will cylinder one side is established to the fretwork shape for after the instrument is worked for a long time, the heat that the motor continued operation produced can follow fretwork part in time to dispel, avoids leading to because of the heat dissipation is untimely the motor breaks down, thereby increases instrument life.

Preferably, the output end of the motor is connected with a first gear, an inner rotating shaft is arranged in the inner cavity of the roller, and a second gear for meshing with the first gear is arranged on the inner rotating shaft.

Through set up two can carry out mechanical rotation in the cylinder gear one with the gear drives through the motor output gear one rotates for gear one drives gear two carries out mechanical rotation, thereby can drive inside pivot rotates. The gear has the characteristics of higher transmission efficiency, accurate transmission ratio and reliable operation, so that stable transmission can be realized, and more stable power is provided for the tool. In addition, the gear has the advantages of long service life and simplicity in maintenance, and is convenient for operators to maintain.

As the preferable mode of the utility model, one side of the roller hollowed-out plate is connected with an external rotating shaft, and the external rotating shaft is rotationally connected with the hand lever.

One detachable side of the roller is connected with the external rotating shaft, and the roller is connected with the hollowed-out plate through a bolt for connecting flat iron. In the practical application process, when an operator uses the trowelling tool, the motor drives the internal rotating shaft to rotate. The inner rotating shaft is connected to the inner side of the hollowed-out plate in a welding mode to enable the inner rotating shaft and the hollowed-out plate to form a whole, so that the inner rotating shaft can drive the hollowed-out plate to rotate. Thereby drive the cylinder rotates, because fretwork board with cylinder 1 is connected and with outside pivot is connected, so through the rotation of cylinder can drive with it is connected outside pivot rotates.

The end part of the hand rod, which is close to one side of the roller hollowed-out plate, is provided with a circular through hole, so that the hand rod can be sleeved on the external rotating shaft. So that the external rotating shaft is not fixedly connected with the hand lever, and therefore, when the external rotating shaft rotates, the hand lever does not rotate. Thereby avoiding the rotation of the hand lever in the operation process and ensuring the overall stability of the tool.

Preferably, the outer rotating shaft is provided with two blocking caps which are respectively arranged at two sides of the hand lever.

Because the external rotating shaft is not fixedly connected with the hand rest, vibration and friction generated when the external rotating shaft rotates can change the position of the hand rest, and the hand rest can be limited to move in a fixed range by arranging the blocking caps at two fixed positions, so that the hand rest cannot fall off or generate position deviation in the operation process, and normal construction operation is ensured.

Preferably, the utility model further comprises a locking rod for limiting the rotation of the external rotating shaft, one end of the locking rod is rotatably connected with the hand rod, and the other end of the locking rod is connected with the external rotating shaft.

The outer rotating shaft and the hand rod are respectively provided with a fixed base, and a metal fixed ring is welded on the hand rod. And the locking rod is installed, the whole locking rod is a metal cylindrical rod piece, and the positions of the end heads at the two ends are hollow circular rings respectively. In the practical application process, when the trowelling tool is idle, an operator sleeves the locking rod on the fixed base of the external rotating shaft, so that the locking rod is prevented from freely rotating and the displacement of the locking rod is limited. When the trowelling tool is ready for work, an operator takes the locking rod off the fixed base of the external rotating shaft and is sleeved on the fixed base of the hand lever, and at the moment, the external rotating shaft is free to rotate. The operator can perform construction work, because the external rotating shaft and the roller rotate synchronously, the roller has rotatable dynamic characteristics, and the tool is applied to curved surface buildings and has a certain gradient. The roller tool will experience a positional shift when not in operation. Through setting up the mounting can make the instrument not change when not using the position, increase operating personnel's security, prevent the emergence of unexpected accident.

In the utility model, a wire pipeline through which the power supply wire passes is arranged in the inner cavity of the hand lever.

Through will the inside electric wire pipeline that is equipped with of hand lever can place the electric wire in the hand lever, make control platform can be through placing the electric wire in the inside electric wire pipeline of hand lever, connect the motor is through placing the electric wire in the hand lever is inside, can play the guard action to the electric wire. The service life of the electric wire is prolonged and the work load of operators is reduced.

Preferably, the walking bar is provided with a protective cover for preventing concrete from splashing.

In the actual operation process, because the concrete is in an undried state in the construction process, when the trowelling tool is pushed to perform construction operation on the concrete surface, mud splashing can be generated under the extrusion action of the roller. The shield above the roller is arranged on one side of the hand lever, which is close to the roller, in a welding mode, so that mud splashed upwards in the construction process can be blocked, and the safety of operators in the construction process is improved.

Preferably, the hand rest is provided with a protective sleeve.

Through be equipped with two on the hand pole and be located operating personnel double-hand holds the position the lag, when operating personnel carries out construction operation, both hands hold the lag, can be convenient for operating personnel promote trowelling tool the hand pole carries out the operation, has promoted operating personnel's use comfort.

Preferably, the surface of the protective sleeve is provided with an anti-slip layer.

By arranging the discrete convex anti-slip structure on the protective sleeve, larger friction force can be provided, and slipping and sliding are effectively prevented. The anti-skid structure is distributed discretely, so that uncomfortable feeling can not be generated to hands or other objects. The friction force between the hands of the operator and the protective sleeve can be increased, so that the operator is not easy to generate a hand sliding phenomenon when performing construction operation, and the safety of the operation process is improved.

In summary, the utility model has the following beneficial effects:

1. through setting up the motor as power to the trowelling instrument, saved operating personnel's physical power to a great extent, saved engineering time greatly to and promote the efficiency of construction.

2. The protection casing is installed to the cylinder top for the mud that splashes in the construction operation in-process can be shielded partly by the protection casing, the security of increase operating personnel in the work progress.

3. One side of the roller tool is provided with a detachable structure, so that the roller tool is convenient to detach when the tool breaks down and needs to be maintained, and heat generated by the motor in the operation process can be timely emitted.

4. The inside of the roller is provided with two gears which can mechanically rotate, and the gears have the characteristics of higher transmission efficiency, accurate transmission ratio and reliable work, so that stable transmission can be realized, more stable power can be provided for the tool, and in addition, the gears have the advantages of long service life and simple maintenance, and are convenient for operators to maintain.

5. The protective sleeve positioned at the holding position of the two hands of the operator is arranged on the hand rod, so that the operator holds the protective sleeve part with two hands when carrying out construction operation. The operator can conveniently push the trowelling tool hand lever to operate, and the use comfort of the operator is improved.

Drawings

Fig. 1 is a schematic diagram of example 1.

FIG. 2 is a schematic view of the interior of the drum in example 1.

Fig. 3 is a schematic view of the lock lever and the external rotation shaft in embodiment 1.

FIG. 4 is a schematic view of one side of the drum closure plate and the protective cover of example 1.

Fig. 5 is a schematic diagram of one side of the hollow plate of the roller in embodiment 1.

In the figure: 1. the device comprises a roller, a closing plate 11, a hollowed plate 12, a 2, a hand rod, a 21, an electric wire pipeline 3, a motor 41, a first gear 42, a second gear 5, an inner rotating shaft 6, an outer rotating shaft 7, a locking rod 8, a protective sleeve 9, an operating platform 10 and a protective cover.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

The present embodiment is only for explanation of the present utility model and is not to be construed as limiting the present utility model, and modifications to the present embodiment, which may not creatively contribute to the present utility model as required by those skilled in the art after reading the present specification, are all protected by patent laws within the scope of claims of the present utility model.

As shown in fig. 1, the trowelling tool is a hollow roller 1 with a smooth surface, a hand lever 2 is externally connected, the roller 1 utilizes the characteristic of the smooth surface of the roller, and pressure generated by the gravity of the roller in the construction process acts on the surface of concrete, so that the problem of honeycomb pitting surface on the surface of the concrete can be solved, and the quality of the appearance is improved. The motor 3 is connected with the hand rest 2 in a welding mode, so that the motor 3 and the hand rest 2 are integrated, and the motor 3 is prevented from rotating when the roller 1 rotates. So that the motor 3 is prevented from being damaged due to rotation, and the service life of the motor 3 is prolonged.

The motor 3 is connected with a control platform 9 through an electric wire, the platform 9 is arranged on the hand lever 2, and an operator can adjust the forward rotation and reverse rotation states of the motor 3 through the control platform 9. The output of the motor 3 is the clockwise/anticlockwise rotation direction of the drum 1, and the clockwise/anticlockwise rotation direction of the drum is often related to the travelling direction of the operator operating the trowelling tool. By using the motor 3 as power, the physical strength of operators is greatly saved, the construction time is greatly saved, and the construction efficiency is improved.

In this embodiment, the control platform 9 is provided with 4 control switch buttons, when the operator presses the first button on the right side, the motor 3 starts to work, at this time, the motor starts to work, and rotates at a low speed in forward transmission to drive the roller 1 to work at a low speed, when the operator presses the first button on the left side, the motor reverses to drive the roller 1 to work backwards, when the operator presses the second button on the left side, at this time, the motor 3 rotates at a high speed to drive the roller 1 to work at a high speed, and when the operator presses the second button on the right side, the motor 3 stops working.

In the actual operation process, an operator can adjust the switch of the trowelling tool and the front and back advancing direction and the construction speed required by construction according to different construction operation demands, so that the convenience degree of the operator for controlling the trowelling tool in the construction operation is increased, and the operation time is saved.

As shown in fig. 1, an electric wire pipeline 21 through which an electric wire passes is arranged in the inner cavity of the walking rod 2. By providing the electric wire line 21 in the grab rail 2, electric wires can be placed in the electric wire line 21, so that the control platform 9 can be connected to the motor 3 by placing electric wires in the inner electric wire line of the grab rail 2. By placing the wires in the wire line 21 inside the grab rail 2, a protective effect on the wires can be achieved. The service life of the electric wire is prolonged and the work load of operators is reduced.

As shown in fig. 4, one side of the drum 1 is a closed structure, and a circular hole is formed in the middle of the drum for allowing the motor 3 to pass through to be connected with the hand lever 2. As shown in fig. 5, the other side of the drum 1 is a detachable structure. The detachable structure which is mature in the prior art can be selected, such as a male buckle fit, a female buckle fit, a bolt and nut fit and a clamping strip clamping groove fit. In this embodiment, a connecting flat steel is welded at four corners inside the outer edge ring of the roller 1, and is used for connecting with the hollowed-out plate 12 in a bolt connection manner. In the practical application process, when the inside of the roller 1 breaks down and needs to be maintained, the outer rotating rod, the connecting flat iron and the hollowed-out plate 12 are removed on one hollowed-out side by utilizing a spanner. And simultaneously, the hollow plate 12 is separated from the roller 1 by using a wrench. At this time, the maintenance personnel can check the fault to perform maintenance. And when the maintenance is finished, the assembly is performed again, so that the operation is convenient and rapid.

Through setting drum 1 one side to the fretwork shape for the instrument is after long-time work, the heat that motor 3 continuous operation produced can follow fretwork part in time dispel, avoids leading to because of the heat dissipation is untimely motor 3 breaks down, thereby increases instrument life.

As shown in fig. 2, the output end of the motor 3 is connected with a first gear 41, an inner rotating shaft 5 is arranged in the inner cavity of the roller 1, and a second gear 42 for meshing with the first gear 41 is arranged on the inner rotating shaft 5. Through setting up two gears 41 and gear two 42 that can carry out mechanical rotation in cylinder 1, drive gear 41 through motor 3 output and rotate for gear 41 drives gear two 42 and carries out mechanical rotation, thereby can drive inside pivot 5 and rotate. The gear has the characteristics of higher transmission efficiency, accurate transmission ratio and reliable operation, so that stable transmission can be realized, and more stable power is provided for the tool. In addition, the gear has the advantages of long service life and simplicity in maintenance, and is convenient for operators to maintain.

As shown in fig. 3, one hollow side of the roller 1 is connected with an external rotating shaft 6, and the external rotating shaft 6 is rotatably connected with the hand lever 2. Two retaining caps are arranged on the outer rotating shaft 6 and are respectively arranged on two sides of the hand lever 2. Two retaining caps are arranged on the outer rotating shaft 6 and are respectively arranged on two sides of the hand lever 2.

Because outside pivot 6 and hand lever 2 are not fixed connection, the vibrations and the friction that produce when outside pivot 6 rotates can make the position of hand lever 2 change, through setting up the fender cap of two fixed positions, can restrict hand lever 2 and remove in its fixed range for hand lever 2 can not drop or produce the position deviation at the operation process, guarantees normal construction operation.

The locking rod 7 is used for limiting the rotation of the outer rotating shaft 6, a fixed base is respectively arranged on the outer rotating shaft 6 and the hand lever 2, and a metal fixed ring is welded on the hand lever 2. And a locking rod 7 is arranged, the locking rod 7 body is a metal cylindrical rod piece, and the end positions of the two ends are respectively hollow circular rings. In the practical application process, when the trowelling tool is idle, an operator sleeves the locking rod 7 on the fixed base of the external rotating shaft 6, so that the locking rod is prevented from freely rotating and the displacement of the locking rod is limited. When the trowelling tool is ready to work, an operator takes the locking rod 7 off the fixed base of the external rotating shaft 6 and is sleeved on the fixed base of the hand lever 2, and at the moment, the external rotating shaft 6 is free to rotate. The operator can perform the construction work, since the external rotation shaft 6 rotates in synchronization with the drum 1, which itself has a rotatable motion characteristic, and the tool is applied to a curved surface building, having a certain gradient. The roller tool will experience a positional shift when not in operation. The position of the tool can not be changed when the tool is not in use by arranging the locking rod 7, so that the safety of operators is improved, and accidents are prevented.

The hand lever 2 is provided with a protective sleeve 8, and an anti-slip layer is arranged on the surface of the protective sleeve 8. Through be equipped with two lag 8 that are located operating personnel's double-hand and hold the position on hand lever 2, when operating personnel carries out construction operation, the lag 8 part is held to both hands, can be convenient for operating personnel promote the hand lever 2 of trowelling instrument and carry out the operation, has promoted operating personnel's use comfort. The protective layer on the protective sleeve 8 can be rubber, PVC, foam rubber and the like which are common in the market. In the embodiment, the surface of the anti-slip layer is provided with the discrete protrusion anti-slip structure, so that larger friction force can be provided, and slipping and sliding are effectively prevented. The anti-skid structure is distributed discretely, so that uncomfortable feeling can not be generated to hands or other objects. The friction force between the hands of the operator and the protective sleeve 8 can be increased, so that the operator is not easy to generate a hand sliding phenomenon when performing construction operation, and the safety of the operation process is improved. As shown in fig. 4, a shield 10 for preventing concrete from splashing is mounted on the grab rail 2. In the actual operation process, because the concrete is in an undried state in the construction process, when the trowelling tool is pushed to perform construction operation on the concrete surface, mud splashing can be generated under the extrusion action of the roller 1. The protective cover 10 positioned above the roller 1 is arranged on one side of the hand lever 2 close to the roller 1 in a welding mode, so that mud splashed upwards in the construction process can be blocked, and the safety of operators in the construction process is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.

Claims (10)

1. The utility model provides a concrete curved surface trowelling tool, contains cylinder (1) and hand lever (2), its characterized in that, hand lever (2) are connected with and are used for the drive rotatory motor (3) of cylinder (1), motor (3) arrange in the inner chamber of cylinder (1), be equipped with on hand lever (2) with motor (3) electricity is connected and be used for controlling means (9) of motor (3) forward and reverse rotation.

2. The concrete curved surface trowelling tool as set forth in claim 1, wherein a closing plate (11) is provided on one side of the drum (1), and a through hole for the hand lever (2) to pass through is provided on the closing plate (11); the other side is a hollowed-out plate (12), and the hollowed-out plate (12) is detachably connected with the roller (1).

3. A concrete curved surface trowelling tool as claimed in claim 1, wherein the output end of the motor (3) is connected with a first gear (41), an inner rotating shaft (5) is arranged in the inner cavity of the roller (1), and a second gear (42) for meshing with the first gear (41) is mounted on the inner rotating shaft (5).

4. A concrete curved surface trowelling tool as claimed in claim 2, wherein one side of said hollow plate (12) is connected with an external rotating shaft (6), said external rotating shaft (6) being rotatably connected with said hand lever (2).

5. A concrete curved surface trowelling tool as claimed in claim 4, wherein said outer shaft (6) is provided with two stop caps, respectively arranged on both sides of said hand lever (2).

6. A concrete curved surface trowelling tool as claimed in claim 4, further comprising a locking lever (7) for restricting rotation of said outer rotary shaft (6), said locking lever (7) being rotatably connected at one end to said hand lever (2) and at the other end to said outer rotary shaft (6).

7. A concrete curved surface trowelling tool as claimed in claim 1, wherein a wire conduit (21) through which the power supply wires pass is provided in the cavity of the hand lever (2).

8. A concrete curved surface trowelling tool as claimed in claim 1, wherein said hand bar (2) is provided with a protective cover (10) for avoiding splashing of the concrete.

9. A concrete curved surface trowelling tool as claimed in claim 1, wherein said hand shank (2) is provided with a protective sleeve (8).

10. A concrete curved surface trowelling tool as claimed in claim 9, wherein said protective sleeve (8) has an anti-slip layer on the surface thereof.