Concrete cutting machine and sliding plate assembly for a concrete cutting machine

Patent metadata

Field	Value
Publication number	US-11813772-B2
Application number	US-202016908281-A
Country	US
Kind code	B2
Filing date	Jun 22, 2020
Priority date	Jun 26, 2019
Publication date	Nov 14, 2023
Grant date	Nov 14, 2023

Abstract

A concrete cutting machine, for wet and dry dual-use cutting, includes a saw blade, which is configured to cut concrete, a motor, which is configured to drive the saw blade to rotate about a first axis, and a bottom plate, which is configured to support the motor and the saw blade. The bottom plate is formed with a first cutting space for the saw blade to pass through. The concrete cutting machine further includes a sliding plate assembly, which is at least partially disposed in the first cutting space, to form a second cutting space smaller than the first cutting space.

First claim

What is claimed is:

1. A concrete cutting machine, comprising:
a saw blade configured to cut concrete;
a motor configured to drive the saw blade to rotate about a first axis;
a bottom plate configured to support the motor and the saw blade, wherein the bottom plate is recessed along the first axis to form a first cutting space for the saw blade to pass through; and
a sliding plate assembly, which is at least partially disposed in the first cutting space to form a second cutting space smaller than the first cutting space,
wherein the sliding plate assembly is detachably mounted to the bottom plate and is movable relative to the bottom plate within a preset range in a first direction parallel to the first axis, and
wherein the first cutting space is open outward along the first axis, and at least a portion of the sliding plate assembly passes through the first cutting space of the bottom plate.

2. The concrete cutting machine according to claim 1 , wherein the sliding plate assembly comprises a supporting member connected to the bottom plate and movable relative to the bottom plate in the first direction parallel to the first axis and a flat member connected to the supporting member, the flat member has a flat surface parallel to the first axis, and the flat surface is located below the supporting member in a second direction perpendicular to the flat surface.

3. The concrete cutting machine according to claim 2 , wherein the sliding plate assembly comprises a connecting assembly connecting the supporting member and the flat member, the connecting assembly comprises a biasing member which is elastically deformable in the second direction perpendicular to the flat surface, and one end of the biasing member abuts the flat member.

4. The concrete cutting machine according to claim 2 , further comprising a rear wheel operably mounted to the bottom plate, wherein a lowest point of the rear wheel in the second direction perpendicular to the flat surface is located in a plane where the flat surface is located.

5. The concrete cutting machine according to claim 2 , wherein the sliding plate assembly is capable of sliding relative to the bottom plate along a second direction perpendicular to the flat surface.

6. The concrete cutting machine according to claim 1 , wherein the sliding plate assembly comprises a flat surface parallel to the first axis and the flat surface is located on a lower side of the bottom plate in a second direction perpendicular to the flat surface.

7. The concrete cutting machine according to claim 1 , further comprising a mounting assembly configured to mount the sliding plate assembly to the bottom plate, wherein the mounting assembly is movably connected to the sliding plate assembly.

8. The concrete cutting machine according to claim 7 , wherein the mounting assembly comprises a rotation operating member which is rotatably connected to the bottom plate and the sliding plate assembly separately, in response to the rotation operating member rotating about a second axis relative to the bottom plate, the sliding plate assembly moves relative to the bottom plate in a direction parallel to the second axis, and the second axis is parallel to the first axis.

9. The concrete cutting machine according to claim 8 , wherein the mounting assembly further comprises a fastening member for connecting the bottom plate and the sliding plate assembly, the fastening member has a locked state and an unlocked state which are switchable, in response to the fastening member being in the locked state, the bottom plate is fixedly connected to the sliding plate assembly, in response to the fastening member being in the unlocked state, the bottom plate is movably connected to the sliding plate assembly, and the rotation operating member and the fastening member are respectively disposed at two ends of the sliding plate assembly in an extending direction of the sliding plate assembly.

10. The concrete cutting machine according to claim 7 , wherein the mounting assembly further comprises a fastening member for fixing the bottom plate and the sliding plate assembly in a direction perpendicular to the first axis of the saw blade and the fastening member is movably connected to the bottom plate and the sliding plate assembly in a direction parallel to the first axis of the saw blade.

11. A concrete cutting machine, comprising:
a motor configured to drive a saw blade to rotate about a first axis;
a bottom plate configured to support the motor, wherein the bottom plate is formed with a first cutting space for the saw blade to pass through; and
a sliding plate assembly comprising a member provided with a flat surface for contacting with concrete, wherein the flat surface is parallel to the first axis and the flat member provided with the flat surface is further provided with a second cutting space for the saw blade to pass through;
wherein the sliding plate assembly is detachably mounted to the bottom plate, the first cutting space is open outward along the first axis, and at least a portion of the sliding plate assembly passes through the first cutting space of the bottom plate in an up-down direction so that the flat surface is located below the bottom plate in a direction perpendicular to the flat surface.

Assignees

• Nanjing Chervon Ind Co Ltd

Inventors

• CHUA Bun Hiong
• Richard Monteverde
• Lan Ran
• Zhang Hua
• Lai Meixiong

Classifications

• B28D1/045 Primary

  Sawing grooves in walls; sawing stones from rocks; sawing machines movable on the stones to be cut · CPC title

• E01C23/025

  Making or working grooves or like channels in laid paving, e.g. smoothing groove edges (E01C23/026, E01C23/028 take precedence) · CPC title

• E01C23/0933

  rotary, e.g. circular-saw joint cutters · CPC title

• B28D1/04 Primary

  with circular {or cylindrical} saw-blades or saw-discs (B28D1/10 takes precedence) · CPC title

• B28D7/00

  Accessories specially adapted for use with machines or devices of the preceding groups {(B28D5/0058 takes precedence)} · CPC title