Angle-adjustable floor edge trimmer

Abstract

The utility model relates to the technical field of floor trimming equipment, in particular to an angle-adjustable floor edge trimmer which comprises a rack, a motor is fixed to the upper end of the rack, the output end of the motor is connected with a rotating disc, a grinding disc is embedded into the bottom end of the rotating disc, a driving rod is rotationally installed on the side wall of the rear end of the rack, and a handrail is arranged at the upper end of the driving rod. A U-shaped frame is rotationally installed on the side wall of the front end of the rack, two sets of driving wheels are symmetrically arranged at the bottom end of the frame and the bottom end of the driving rod, when the frame is in an unfolded state, the driving wheels make contact with the ground, at the moment, the grinding disc is suspended, friction resistance during moving is reduced, and equipment is easier to move and transfer; when the frame is in a contraction state, the front side driving wheel is separated from the ground, the grinding disc makes contact with the ground, and edge grinding operation is not hindered.

Description

Technical Field

[0001] This utility model relates to the technical field of floor trimming equipment, and in particular to an adjustable-angle floor trimming machine. Background Technology

[0002] The floor is the part of the ground floor room that comes into contact with the soil layer. It bears the load of the ground floor room and requires a certain strength and rigidity, as well as moisture-proof, waterproof, heat-insulating, and wear-resistant properties. It can be divided into epoxy resin flooring, epoxy resin mortar flooring, multi-colored crystal epoxy flooring, epoxy colored sand flooring, wear-resistant flooring, etc. In order to make the floor surface smooth and meet the acceptance standards, a grinder is often used to grind the floor after it is laid. However, the grinder is large and not suitable for grinding the floor at the edges and corners of the wall. Therefore, a floor trimming machine is used. A common floor trimming machine mainly includes a frame, motor, grinding disc, and handrail. The grinding disc is fixed. When trimming the edges and corners, the operator needs to apply lateral pushing force to make the grinding disc stick to the wall, which is inconvenient to operate. In addition, most trimming machines only have wheels on the pushing side, which is more difficult to push when not in operation.

[0003] Therefore, this utility model provides an angle-adjustable floor trimming machine, which can easily adjust the angle of the frame and the grinding disc, making it easier to push. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art by proposing an adjustable-angle floor trimming machine.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] An adjustable floor trimming machine includes a frame, with a motor fixed at the upper end of the frame. The output end of the motor is connected to a turntable, and a grinding disc is embedded at the bottom end of the turntable. A drive rod is rotatably mounted on the rear side wall of the frame. The drive rod is equipped with a battery and a controller electrically connected to the motor. A handrail is provided at the upper end of the drive rod. A U-shaped frame is rotatably mounted on the front side wall of the frame. Two sets of drive wheels are symmetrically provided at the bottom end of the frame and the bottom end of the drive rod. Limiting mechanisms are provided between the two cantilever arms of the frame and the frame to ensure stability after the frame deflects.

[0007] Preferably, a universal coupling is provided between the motor and the grinding disc. The universal coupling includes a connecting rod that is universally connected to the frame. Both ends of the connecting rod are provided with U-shaped frames, which are vertically symmetrical and staggered. Straight slot frames are fixed to the output shaft of the motor and the upper end of the turntable, which are staggered vertically. The cantilever of the U-shaped frame above the connecting rod is inserted into the straight slot frame on the motor, and the U-shaped frame below the connecting rod is inserted into the straight slot frame on the turntable. A stabilizer is provided between the grinding disc and the frame to ensure that the grinding disc is in close contact with the ground.

[0008] Preferably, both of the two straight groove frames are provided with straight grooves on opposite sides, and both U-shaped frames are provided with drive balls at the cantilever ends, with the drive balls embedded in the straight grooves.

[0009] Preferably, the diameter of the driving ball is larger than the diameter of the U-shaped frame cantilever.

[0010] Preferably, the frame is provided with a partition, and the partition has a spherical groove with openings at both ends at its axis. The connecting rod has a universal ball on its outer wall, and the universal ball is universally connected in the spherical groove. The diameter of the connecting rod is smaller than the diameter of the openings at both ends of the spherical groove.

[0011] Preferably, the stabilizer includes a rotating ring rotatably mounted on the upper end of the turntable, and a top spring is provided between the rotating ring and the bottom wall of the partition.

[0012] Preferably, the limiting mechanism includes two limiting holes, which are spaced apart around the axis of the frame rotation, and the cantilever ends of the frame are threaded with screws that mate with the limiting holes.

[0013] Preferably, the limiting hole has a chamfer.

[0014] Preferably, the frame has two symmetrical side wings on both the left and right sides, and each side wing is rotatably mounted with a guide wheel. The common tangent of the two guide wheels on the same side is tangent to the side wall of the turntable.

[0015] Preferably, the handrail is retractable.

[0016] Compared with the prior art, this utility model provides an angle-adjustable floor trimming machine, which has the following beneficial effects.

[0017] 1. A motor is fixed at the top of the frame, and a turntable is connected to the output end of the motor. A grinding disc is embedded at the bottom of the turntable. A drive rod is rotatably installed on the rear side wall of the frame, and a handrail is provided at the top of the drive rod. A U-shaped frame is rotatably installed on the front side wall of the frame. Two sets of drive wheels are symmetrically provided at the bottom of the frame and the bottom of the drive rod. When the frame is in the unfolded state, the drive wheels are in contact with the ground, and the grinding disc is suspended in the air, which reduces frictional resistance during movement and makes it easier to move and transport the equipment. When the frame is in the retracted state, the front drive wheels are separated from the ground, and the grinding disc is in contact with the ground, which does not hinder the edge grinding operation.

[0018] 2. The machine frame has two symmetrical side wings on both the left and right sides, and each side wing is equipped with a guide wheel. The common tangent of the two guide wheels on the same side is tangent to the side wall of the turntable. When grinding the corner of the wall, the two guide wheels on the same side are pressed against the wall surface and positioned by the two guide wheels. The machine frame will not easily deflect, which ensures that the grinding disc is always in close contact with the wall surface, ensuring the grinding of the corner of the wall. It also restricts the machine frame and prevents it from easily deflecting and becoming difficult to control during the movement of the machine frame along the wall. This reduces the pushing force that the operator applies to the handle and reduces the operator's burden.

[0019] 3. An exhaust fan is installed at the bottom of the frame, and a storage bag is installed on the surface of the frame. The exhaust fan sucks up the dust that escapes from the side of the grinding disc and sends the dust into the storage bag, reducing dust spillage, lowering the probability of operators inhaling dust, and improving the safety of the working environment.

[0020] 4. The handrail is retractable, suitable for operators of different heights, improving the flexibility of equipment use.

[0021] Other advantages, objectives and features of this invention will be set forth in part in the description which follows; and in part will be apparent to those skilled in the art upon examination of the following description; or may be taught from practice of this invention. Attached Figure Description

[0022] Figure 1 This is a three-dimensional schematic diagram of the present invention.

[0023] Figure 2 This is a schematic diagram showing the unfolded framework of this utility model.

[0024] Figure 3 This is a schematic diagram of the frame storage of this utility model.

[0025] Figure 4 This is a cross-sectional view of the frame assembly of this utility model.

[0026] Figure 5 This is an exploded schematic diagram of the universal coupling of this utility model.

[0027] Figure 6 This is a top view of the present invention.

[0028] Figure 7 For the present utility model Figure 2 A partial schematic diagram of point A.

[0029] In the diagram: 1. Frame; 2. Motor; 3. Mounting box; 4. Turntable; 5. Grinding disc; 6. Frame; 7. Drive wheel; 8. Screw; 9. Limiting hole; 10. Exhaust fan; 11. Storage bag; 12. Guide wheel; 13. U-shaped frame; 14. Straight groove frame; 15. Partition. Detailed Implementation

[0030] The following will refer to the appendix in the embodiments of this utility model. Figure 1-7 The technical solutions in the embodiments of this utility model will be clearly and completely described. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0031] Example 1: To address the problems existing in the prior art, this example provides an angle-adjustable floor trimming machine, including a frame 1. A motor 2 is fixed to the upper end of the frame 1. A turntable 4 is connected to the output end of the motor 2. A grinding disc 5 is embedded in the bottom end of the turntable 4. The grinding disc 5 and the turntable 4 are detachably connected, facilitating the maintenance and replacement of the grinding disc 5. A drive rod is rotatably mounted on the rear side wall of the frame 1. A mounting box 3 is provided on the drive rod. A battery and a controller electrically connected to the motor 2 are embedded in the mounting box 3. A handrail is provided at the upper end of the drive rod. The handrail is retractable, and the operator can adjust the height of the handrail according to their own conditions, making the pushing operation more comfortable.

[0032] A U-shaped frame 6 is rotatably mounted on the front side wall of the frame 1. A support column is provided at the bottom of the frame 6. Two sets of drive wheels 7 are symmetrically arranged at the bottom of both the support column and the drive rod. The distance between the center of the support column and the center of the frame 1 is greater than the distance between the bottom of the drive rod and the center of the frame 1, ensuring that both drive wheels 7 are in contact with the ground. (Refer to the attached diagram.) Figure 2 As shown, the front side of the frame 1 is raised, which causes the grinding disc 5 to lift off the ground. When the frame 1 is pushed to move, the resistance on the frame 1 is greatly reduced, making it easier to move the equipment when it is not in operation.

[0033] Limiting mechanisms are provided between the two cantilever arms of frame 6 and the frame 1. The limiting mechanisms include two limiting holes 9. One limiting hole 9 is flush with the rotation axis of frame 6, and the other limiting hole 9 is located directly below the rotation axis of frame 6. The two limiting holes 9 are set at 90° intervals around the rotation axis of frame 6. The ends of the cantilever arms of frame 6 are threaded with screws 8 that cooperate with the limiting holes 9. When frame 6 is in the extended state, screws 8 are inserted into the limiting holes 9 flush with the rotation axis of frame 6, limiting and braking frame 6. At this time, drive wheels 7 are in contact with the ground, which is the moving state. When frame 6 is in the retracted state, screws 8 are screwed to separate screws 8 from the limiting holes 9 flush with the rotation axis of frame 6, deflecting frame 6. Screws 8 are screwed to insert screws 8 into the limiting holes 9 directly below the rotation axis of frame 6, limiting and braking frame 6. At this time, the front drive wheels 7 are separated from the ground, the front of the frame 1 no longer tilts up, and the grinding disc 5 is in contact with the ground, which is the grinding operation state.

[0034] In this embodiment, the portion of the stud inserted into the limiting hole 9 is a smooth column to prevent stress loads from acting on the thread and damaging the thread, thus preventing the screw 8 from being turned; the limiting hole 9 is chamfered to facilitate the insertion of the screw 8.

[0035] In this embodiment, the drive rod is rotatably connected to the frame 1, so that the drive wheel 7 at the bottom of the drive rod is a universal wheel structure, thereby enabling the frame 1 to deflect relative to the drive rod, thereby changing the angle between the frame 1 and the operator.

[0036] In this embodiment, friction damping is provided between the drive rod and the rotating part of the frame 1 to increase the frictional resistance between the drive rod and the frame 1, reduce the rotational flexibility of the drive rod, and prevent the frame 1 from swaying randomly after being pushed to move, thereby improving the stability of travel. In order to further improve the stability of the drive rod movement, a braking system can be provided on the frame 1, similar to the brakes of a bicycle. The handbrake is located on the handlebar, and the brake pads are located at the contact part between the frame 1 and the drive rod. Squeezing the handbrake can brake the drive rod. At this time, pushing the drive rod can only move in one direction and will not easily deviate.

[0037] Example 2, refer to Appendix Figure 6 As shown, the frame 1 has two symmetrical side wings on both the left and right sides, and each side wing is rotatably mounted with a guide wheel 12. The common tangent of the two guide wheels 12 on the same side is tangent to the side wall of the turntable 4. When grinding the corner of the wall, the two guide wheels 12 on the same side press against the wall surface and are positioned by the two guide wheels 12. The frame 1 will not easily deflect, which ensures that the grinding disc 5 is always in close contact with the wall surface, ensuring the grinding of the corner of the wall. It also restricts the frame 1 and prevents the frame 1 from easily deflecting and becoming difficult to control during the movement along the wall. This reduces the pushing force that the operator applies to the handrail and reduces the operator's burden.

[0038] In Example 3, an exhaust fan 10 is provided at the bottom of the frame 1 between the grinding disc 5 and the drive rod. A collector for use with the exhaust fan 10 is provided on the surface of the frame 1. A storage bag 11 is detachably installed on the collector. During grinding, the exhaust fan 10 sucks up the dust escaping from the side of the grinding disc 5 and sends the dust into the storage bag 11, reducing dust overflow, lowering the probability of the operator inhaling dust, and improving the safety of the working environment. The storage bag 11 is detachable, making it easy to clean the collected debris.

[0039] In Example 4, a universal coupling is provided between the motor 2 and the grinding disc 5. The universal coupling includes a connecting rod, which is universally connected to the frame 1. Both ends of the connecting rod are provided with U-shaped brackets 13, which are vertically symmetrical and staggered. The cantilever ends of both U-shaped brackets 13 are provided with driving balls. Straight groove brackets 14 are fixed to the output shaft of the motor 2 and the upper end of the turntable 4. The two straight groove brackets 14 are staggered vertically, and each has a straight groove on one side. The driving ball of the U-shaped bracket 13 above the connecting rod is inserted into the straight groove bracket 14 on the motor 2, and the driving ball of the U-shaped bracket 13 below the connecting rod is inserted into the straight groove bracket 14 on the turntable 4. The diameter of the driving ball is larger than the cantilever diameter of the U-shaped bracket 13. (Refer to Appendix) Figure 4 and attached Figure 5As shown, the turntable 4 has the ability to shift to all directions relative to the motor 2. When the grinding disc 5 is pressed against a hard protrusion on the ground, the edge of the grinding disc 5 can be lifted up and pressed against the surface of the protrusion to slowly grind. Alternatively, it can be lifted up to bypass the hard protrusion, reducing damage to the grinding disc 5. On uneven ground with large undulations, the grinding disc 5 can also adapt to the undulations of the ground, improving the flexibility of use. In this attached figure, the scale of the grinding disc 5 is only for schematic purposes. In reality, the diameter of the grinding disc 5 should be similar to that of the frame 1.

[0040] The frame 1 is equipped with a partition 15. The partition 15 has a spherical groove with openings at both ends at its axis. The outer wall of the connecting rod at its center is equipped with a universal ball. The universal ball is universally connected in the spherical groove. The diameter of the connecting rod is smaller than the diameter of the openings at both ends of the spherical groove, so that the two U-shaped frames 13 are universally installed in the frame 1. This allows the two U-shaped frames 13 to remain suspended without affecting their relative deflection. A stabilizer is provided between the partition 15 and the turntable 4. The stabilizer includes a rotating ring that is rotatably installed on the upper end of the turntable 4. A top spring is provided between the rotating ring and the bottom wall of the partition 15. The top spring presses against the turntable 4, so that the turntable 4 always tends to be close to the ground. When grinding small raised surfaces, the edges will not easily lift.

[0041] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

[0042] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0043] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An angle adjustable floor edger characterized by, The utility model provides a kind of grinding machine, including rack (1), the upper end of the rack (1) is fixed with motor (2), the output end of motor (2) is connected with rotary disc (4), rotary disc (4) bottom end is embedded with grinding disc (5), the rear end lateral wall of rack (1) is rotatably installed with driving rod, driving rod is equipped with battery and controller electrically connected with motor (2), the upper end of driving rod is equipped with handrail, the front end lateral wall of rack (1) is rotatably installed with U-shaped frame (6), frame (6) bottom end is symmetrically equipped with two groups of driving wheels (7) with the bottom end of driving rod, limit mechanism is equipped between the two cantilever arms of frame (6) and rack (1), so that frame (6) can keep stable after deflection.

2. The angle adjustable floor edger according to claim 1, wherein, The utility model provides a kind of grinding machine, including rack (1), the upper end of the rack (1) is fixed with motor (2), the output end of motor (2) is connected with rotary disc (4), rotary disc (4) bottom end is embedded with grinding disc (5), the rear end lateral wall of rack (1) is rotatably installed with driving rod, driving rod is equipped with battery and controller electrically connected with motor (2), the upper end of driving rod is equipped with handrail, the front end lateral wall of rack (1) is rotatably installed with U-shaped frame (6), frame (6) bottom end is symmetrically equipped with two groups of driving wheels (7) with the bottom end of driving rod, limit mechanism is equipped between the two cantilever arms of frame (6) and rack (1), so that frame (6) can keep stable after deflection.

3. The angle adjustable floor edger of claim 2, wherein, The opposite side of two described straight slot frame (14) is equipped with straight slot, the cantilever end of two U-shaped frames (13) is equipped with driving ball, and the driving ball is embedded in the straight slot.

4. The angle adjustable floor edger according to claim 3, wherein, The diameter of the driving ball is greater than the diameter of the cantilever of the U-shaped frame (13).

5. The angle adjustable floor edger of claim 2, wherein, The rack (1) is provided with a partition plate (15), the partition plate (15) is provided with a spherical groove with open ends at the shaft center, a universal ball is arranged on the outer wall of the connecting rod, the universal ball is connected in a universal manner in the spherical groove, and the diameter of the connecting rod is less than the diameter of the open ends of the spherical groove.

6. The angle adjustable floor edger of claim 5, wherein, The stabilizer includes a rotating ring rotatably installed on the upper end of the rotary disc (4), and a top spring is arranged between the rotating ring and the bottom wall of the partition plate (15).

7. The angle adjustable floor edger of claim 1, wherein, The limit mechanism includes two limit holes (9) arranged at intervals around the shaft axis of the frame (6), and a screw rod (8) cooperated with the limit hole (9) is threadedly installed at the end of the cantilever of the frame (6).

8. The angle adjustable floor edger of claim 7, wherein, The limit hole (9) is chamfered.

9. The angle adjustable floor edger of claim 1, wherein, The rack (1) is symmetrically provided with two side wings in front and back on the left and right sides, a guide wheel (12) is rotatably installed on each side wing, and the common tangent line of the two guide wheels (12) on the same side is tangent to the lateral wall of the rotary disc (4).

10. The angle adjustable floor edger of claim 1, wherein, The handrail is telescopic.

Images