CN221337998U - Handheld polishing device - Google Patents

Abstract

The utility model provides a handheld polishing device which comprises a support, wherein the support is of two symmetrical polygonal flat plate structures, the side edges of the support are arranged in an arc-shaped concave shape, a transmission structure is arranged between the two supports and comprises a pulley block and a transmission belt, motors are arranged on the same sides of the support and the pulley block and are connected with the transmission structure and provide power, protection plates are arranged on the side edges of the support, and a polishing belt is sleeved outside the transmission belt. The side surface of the device is provided with the arc-shaped concave, and the polishing belt elastically deforms and is attached to the surface of the object when contacting with the object, so that the contact area between the polishing belt and the surface of the object is large, and the polishing effect and the polishing efficiency are improved; the device is provided with the detachable protection plate, so that the device is prevented from being injured due to false touch during operation, and three sides of the device can be polished simultaneously after being detached, so that the device can adapt to some special working scenes; the device is provided with the hand-held handles which are mutually perpendicular, so that the torque of bidirectional shaking can be counteracted by manpower, and the device works more stably.

Description

Handheld polishing device

Technical Field

The application relates to the field of polishing equipment, in particular to a handheld polishing device.

Background

Polishers, also known as grinders, are often used for mechanical grinding, polishing and waxing. The working principle is as follows: the motor drives the sponge or wool polishing disc arranged on the polishing machine to rotate at a high speed, and the polishing disc and the polishing agent jointly act and rub the surface to be polished, so that the purposes of removing paint surface pollution, oxide layers and shallow marks can be achieved.

Patent publication number CN218017706U discloses a handheld burnishing machine, including shell, motor and heat dissipation muscle, the thermovent has been seted up to the upper end of shell, the inside fixed mounting of shell has the motor, install the heat dissipation muscle on the motor, the output shaft of motor has the pivot through the coupling joint, the pivot runs through the shell and installs the polishing piece, the one end fixedly connected with concave shell that the shell is close to the polishing piece. Polishing machines in the prior art all adopt the form that polishing wheels are directly connected to a motor in a rotating way, and the polishing wheels are cylindrical or disc-shaped and polished by using side surfaces or top surfaces. When the side polishing is used, the contact area between the polishing wheel and the object is very small and is convex, and when the top polishing is used, the polishing machine is difficult to take stably due to the tangential force generated by the object on the horizontal direction of the top surface of the polishing wheel, so that the accurate polishing cannot be performed.

Disclosure of utility model

Aiming at the defects in the prior art, the utility model provides a handheld polishing device which solves the problems of small contact area and unstable hand holding of a polishing machine in the prior art.

The utility model is realized by the following technical scheme: the utility model provides a handheld burnishing device, includes the support, and the support is two polygon dull and stereotyped structures of symmetry, and the side of support sets up to concave shape in the arc, is provided with transmission structure between two supports, and transmission structure is including rotating the assembly pulley of connecting in support corner department and the drive belt of cover between the assembly pulley, and the support is provided with the motor with the assembly pulley homonymy, and the motor is connected and provides power with transmission structure, and the support side is provided with detachable guard plate, and the drive belt overcoat has the polishing area.

Further, the support is a triangular support.

Further, the pulley block comprises a driving wheel, a driven wheel and a tensioning wheel, and the driving wheel, the driven wheel and the tensioning wheel are respectively arranged at the triangular part of the bracket.

Further, the output end of the motor is connected with a transmission gear set, and the transmission gear set is connected to the driving wheel through a belt.

Further, a sliding groove is formed in the joint of the support and the tensioning wheel, the tensioning wheel is arranged in the sliding groove in a penetrating mode, and the tensioning wheel is fixed on the support through a fixing knob.

Further, a handle is arranged on each side of the bracket.

Further, the two handles are perpendicular to each other.

Compared with the prior art, the utility model has the following beneficial effects: the side surface of the device is provided with the arc-shaped concave, and the polishing belt elastically deforms and is attached to the surface of the object when contacting with the object, so that the contact area between the polishing belt and the surface of the object is large, and the polishing effect and the polishing efficiency are improved; the detachable protection plate is arranged, so that the device is prevented from being injured due to false touch during operation, and three sides of the device can be polished simultaneously after being detached, so that the device can adapt to some special working scenes; the device is provided with the hand-held handles which are mutually perpendicular, so that the torque of bidirectional shaking can be counteracted by manpower, and the device works more stably.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

Fig. 2 is a schematic partial structure of an embodiment of the present utility model.

In the figure: 1. a bracket; 2. a transmission structure; 3. a motor; 4. a protection plate; 5. a polishing belt; 6. a handle; 11. a chute; 12. fixing a knob; 21. pulley block; 22. a transmission belt; 31. a drive gear set; 32. a belt; 211. a driving wheel; 212. driven wheel; 213. tensioning wheel.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the structures or elements being referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

As shown in fig. 1-2, this embodiment provides a handheld polishing device, including support 1, support 1 is two polygon dull and stereotyped structures of symmetry, and the side of support 1 sets up to the concave shape in the arc, is provided with transmission structure 2 between two supports 1, and transmission structure 2 includes pulley block 21 and the drive belt 22 of cover between pulley block 21 of rotating connection in support 1 corner department, and support 1 and pulley block homonymy are provided with motor 3, and motor 3 is connected and provides power with transmission structure 2, and support 1 side is provided with detachable guard plate 4, and the drive belt 22 overcoat has polishing belt 5. The polishing belt 5 sleeved outside the driving belt 22 moves along with the driving belt 22 to generate friction with the surface of an object so as to achieve the polishing effect, and in the embodiment, the motor 3 supplies power for the driving structure 2 through a driving mode of gears and belts. Setting up guard plate 4 and avoiding the operation time to touch and being injured because of the mistake, guard plate 4 can dismantle, and the three limit of this device can carry out polishing work simultaneously after guard plate 4 is dismantled, can adapt to some special working scenario.

Preferably, the support 1 is a triangular support, which is structurally stable, making the device more reliable.

As shown in fig. 2, preferably, the pulley block 21 includes a driving wheel 211, a driven wheel 212, and a tensioning wheel 213, and the driving wheel 211, the driven wheel 212, and the tensioning wheel 213 are respectively disposed at the triangle of the bracket 1. The driving belt 22 is sleeved on the driving wheel 211, the driven wheel 212 and the tensioning wheel 213 to form a stable triangle structure, and the pulley block 21 rotates and drives the driving belt 22 to move.

As shown in fig. 2, the output end of the motor 3 is preferably connected with a drive gear set 31, and the drive gear set 31 is connected to the driving wheel through a belt 32. By the cooperation of the belt 32 and the gear set 31 as a transmission mode, the belt 32 can provide limited friction force, and when the belt 32 is operated improperly, the belt 32 and the gear set 31 can slide relatively to avoid wearing the gear set 31 or damaging polished objects.

As shown in fig. 1, preferably, a sliding groove 11 is arranged at the joint of the bracket 1 and the tensioning wheel 213, the tensioning wheel 213 is arranged in the sliding groove 11 in a penetrating manner, and the tensioning wheel 213 is fixed on the bracket 1 through a fixing knob 12. The transmission belt 22 may deform and become long in the use process, and the transmission belt 22 can be attached to the pulley block 21 by adjusting the tension pulley 213, so that the transmission belt 22 is prevented from falling off due to looseness.

Preferably, the driving wheel 211, the driven wheel 212 and the tensioning wheel 213 are coated with a coarse material, and the driving belt 22 is made of a coarse material.

Preferably, the bracket 1 is provided with a handle 6 on each side.

Preferably, the handles 6 are perpendicular to each other. The handles perpendicular to each other enable the two-way shaking moment to be offset by manpower, so that the handheld device is more stable.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims (7)

1. A hand-held polishing device, characterized in that: including support (1), support (1) are two polygon dull and stereotyped structures that the symmetry set up, the side of support (1) sets up to the concave shape in the arc, two be provided with transmission structure (2) between support (1), transmission structure (2) are including rotating pulley block (21) and the cover of connection in support (1) corner department establish drive belt (22) between pulley block (21), support (1) with pulley block homonymy is provided with motor (3), motor (3) with transmission structure (2) are connected and provide power, support (1) side is provided with detachable guard plate (4), drive belt (22) overcoat has polishing belt (5).

2. A hand-held polishing device as recited in claim 1, wherein: the support (1) is a triangular support.

3. A hand-held polishing device as recited in claim 2, wherein: the pulley block (21) comprises a driving wheel (211), a driven wheel (212) and a tensioning wheel (213), wherein the driving wheel (211), the driven wheel (212) and the tensioning wheel (213) are respectively arranged at the triangle of the bracket (1).

4. A hand-held polishing device according to claim 3, wherein: the output end of the motor (3) is connected with a transmission gear set (31), and the transmission gear set (31) is connected to the driving wheel (211) through a belt (32).

5. A hand-held polishing device as recited in claim 4, wherein: the support (1) with take-up pulley (213) junction is provided with spout (11), take-up pulley (213) wear to establish in spout (11), take-up pulley (213) are fixed on support (1) through fixed knob (12).

6. A hand-held polishing device as recited in claim 1, wherein: two sides of the bracket (1) are respectively provided with a handle (6).

7. A hand-held polishing device as recited in claim 6, wherein: the two handles (6) are perpendicular to each other.