A ground joint cutter for a concrete floor

Abstract

The utility model discloses a kind of concrete ground surface ground joint cutting machines, belong to building construction machinery technical field, including base, cutting wheel, supporting wheel, push handle, convex seat and insert column.Cutting wheel is located in base front end, by engine drive;Supporting wheel is located in base rear end;Push handle is located in base rear end to facilitate push;Convex seat is fixed in base side, and it is located between cutting wheel and supporting wheel;Insert column is vertically slidably arranged on convex seat:in the cutting machine movement and cutting wheel operation process, cutting forms ground joint after, insert column can fall into ground joint under the action of dead weight.Cutting machine continues to advance, insert column moves along ground joint, play straight line guiding effect, simultaneously push out dust and stone chips in ground joint, realize the synchronous cleaning of ground joint.Insert column vertically slidably arranged can be self-adapting different depth cutting joint, avoid jamming.The utility model is mainly used for concrete ground or road surface cutting joint operation, can effectively improve the straightness of cutting joint and construction efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of construction machinery technology, specifically relating to a concrete floor joint cutting machine. Background Technology

[0002] Concrete joint cutting is a crucial step in the construction of concrete floors or roads. Its core purpose is to create regular, weak surfaces on the concrete slab beforehand, guiding the concentrated release of shrinkage stress and thus preventing irregular cracks from forming during the hardening process due to temperature changes and drying shrinkage. Concrete has relatively low tensile strength, and tensile stress is generated during cold contraction. Without artificial guidance, this will lead to disordered cracking of the floor, affecting not only aesthetics but also creating vulnerable sharp angles, reducing the overall structural durability. Properly cut joints can effectively distribute stress at predetermined locations, forming regular horizontal and vertical joint lines, ensuring the flatness, functionality, and service life of the floor.

[0003] In existing technologies, concrete cutting machines rely on manual propulsion to move the equipment along a predetermined route, with visual control of straight lines drawn on the ground to maintain straightness. This type of equipment has significant limitations: it lacks an effective guiding mechanism, leading to fluctuations in cut straightness during long-distance cutting; and dust and stone chips generated during cutting tend to remain inside the cut, requiring subsequent cleaning and increasing process costs. Utility Model Content

[0004] In view of the shortcomings of the prior art described above, the purpose of this utility model is to provide a concrete floor joint cutting machine to solve the problems that traditional concrete joint cutting machines are prone to deviating from a straight line during operation due to the lack of effective guidance, and that dust and stone chips remain in the joints produced by cutting, requiring subsequent cleaning.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] This utility model includes a base, a cutting wheel, a support wheel, a push handle, a protruding seat, and a plug. The cutting wheel is driven by an engine and is rotatably mounted on the front side of the base. The support wheel is rotatably mounted on both sides of the rear end of the base. The push handle is fixedly mounted on the rear end of the base. The protruding seat is fixedly mounted on the side of the base and is located between the cutting wheel and the support wheel. The plug is vertically slidably mounted on the protruding seat. As the base moves and the cutting wheel cuts, the plug falls into the cut crack, serving as a linear guide for the cutting machine and pushing out dust and stone chips.

[0007] Optionally, it also includes a counterweight, wherein the insert is slidably disposed on the protruding seat, and the upper end of the insert is fixedly connected to the counterweight.

[0008] Optionally, the protruding seat has a through hole for the insertion post to pass through, and a plurality of ball bearings supporting the insertion post are arranged inside the through hole along the direction of movement of the insertion post.

[0009] Optionally, a triangular stop block is also included. The triangular stop block is located between the support wheel and the insert post. The triangular stop block is installed on the lower side of the machine base. During the cutting operation, the front edge of the triangular stop block is close to the insert post, so that stone chips and dust are pushed away by the triangular stop block and away from the cutting seam.

[0010] Optionally, the bottom of the triangular stop is hollow.

[0011] Optionally, it also includes a support base, a spring, and a sliding block. The support base is fixedly disposed on the side of the machine base and is located between the insert and the support wheel. The sliding block is slidably disposed below the support base. The spring is supported between the sliding block and the support base. The triangular stop block is fixedly connected to the sliding block.

[0012] Optionally, it also includes rollers, which are rotatably connected to both sides of the sliding block and support the sliding block to move on the ground during the cutting process.

[0013] Optionally, a dust baffle is also included, which is fixedly installed on the top side of the triangular block to block flying dust.

[0014] The beneficial effects of this utility model are as follows: During the cutting process, this cutting machine cuts straight seams by pushing. A vertically moving insert, positioned behind the cutting wheel, falls into the seam after it has been cut, and as the machine continues to move, it pushes out dust and stone chips from the seam. The vertically moving insert can adapt to the depth of the seam and will not easily get stuck. Furthermore, the insert guides the entire cutting machine in a straight line during its movement, pushing dust and stone chips out of the seam, thus replacing the subsequent cleaning process and improving the efficiency of seam construction.

[0015] Other advantages, objectives, and features of this invention will be set forth in the following description and will be apparent to those skilled in the art to some extent, or may be learned by practice of this invention. The objectives and other advantages of this invention can be realized and obtained through the following description. Attached Figure Description

[0016] To make the objectives, technical solutions, and beneficial effects of this utility model clearer, the following drawings are provided for illustration:

[0017] Figure 1 A schematic diagram of the overall cutting machine according to an embodiment of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of point A;

[0019] Figure 3 A cross-sectional view of the protruding seat in this embodiment of the utility model;

[0020] Figure 4 A cross-sectional view of the support base of this utility model embodiment;

[0021] The following are the markings in the attached diagram: 1. Base; 2. Cutting wheel; 3. Support wheel; 4. Push handle; 5. Protruding seat; 51. Perforation; 52. Ball bearing; 6. Insert post; 7. Counterweight; 8. Triangular stop block; 81. Dust baffle; 91. Support seat; 92. Spring; 93. Sliding block; 94. Roller. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification.

[0023] Please refer to the figures. It should be noted that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and are not intended to limit the scope of this invention. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and purpose of this invention, should still fall within the scope of the technical content disclosed in this invention. Furthermore, the terms such as "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and are not intended to limit the scope of this invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of this invention.

[0024] The following embodiments are for illustrative purposes only. These embodiments can be combined and are not limited to the content shown in any single embodiment below.

[0025] This utility model provides a concrete floor joint cutting machine, such as... Figure 1As shown, the device includes a base 1, a cutting wheel 2, a support wheel 3, a push handle 4, a protruding seat 5, and a insert 6. The cutting wheel 2 is driven by an engine and is rotatably mounted on the front side of the base 1. The support wheels 3 are rotatably mounted on both sides of the rear end of the base 1. The push handle 4 is fixedly mounted on the rear end of the base 1. The two support wheels 3 provide support for the base 1 during the cutting process. Support rollers can also be installed on the bottom front side of the base 1 if necessary to maintain the translation of the base 1 during movement. At this time, the cutting wheel 2 embeds into the ground and performs ground cutting as the base 1 moves. The protruding seat 5 is fixedly mounted on the side of the base 1 and also includes a counterweight 7. The insert 6 is slidably mounted on the protruding seat 5. The upper end of the insert 6 is fixedly connected to the counterweight 7. The protruding seat 5 has a through hole 51 for the insert 6 to pass through. Several ball bearings 52 supporting the insert 6 are arranged inside the through hole 51 along the moving direction of the insert 6, so that the insert 6 can move flexibly down on the protruding seat 5 under the action of gravity. The protruding seat 5 is located between the cutting wheel 2 and the support wheel 3. The insert 6 is vertically slidably mounted on the protruding seat 5. As the machine base 1 moves and the cutting wheel 2 cuts, the insert 6 falls into the cut ground crack, which is used for the linear guidance of the cutting machine and to push out dust and stone chips.

[0026] This cutting machine cuts straight seams by pushing them during the cutting process. A vertically moving insert 6, positioned behind the cutting wheel 2, enters the seam after it's cut and pushes out dust and stone chips. The vertically moving insert 6 adapts to the depth of the seam and doesn't easily get stuck. Furthermore, the insert 6 guides the entire cutting machine in a straight line during its movement, pushing dust and stone chips out of the seam, thus replacing the need for subsequent seam cleaning and improving construction efficiency.

[0027] It also includes a triangular stop block 8, which has a hollow bottom and is located between the support wheel 3 and the insert post 6. The triangular stop block 8 is installed on the lower side of the machine base 1. During cutting, the front edge of the triangular stop block 8 approaches the insert post 6, pushing away stone chips and dust and keeping them away from the cutting seam. It also includes a support base 91, a spring 92, and a sliding block 93. The support base 91 is fixedly installed on the side of the machine base 1 and is located between the insert post 6 and the support wheel 3. The sliding block 93 is slidably installed below the support base 91. The spring 92 supports the sliding block 93 and the support base 91. The triangular stop block 8 is fixedly connected to the sliding block 93. It also includes a roller 94, which is rotatably connected to both sides of the sliding block 93. During cutting, the roller 94 supports the sliding block 93 to move on the ground. It also includes a dust baffle 81, which is fixedly installed on the top side of the triangular stop block 8 to block flying dust.

[0028] In a further design, a triangular stop 8 is incorporated. This stop moves with the cutting machine, pushing away stone chips and dust ejected by the insertion post 6 and preventing them from falling back into the crack. This facilitates subsequent removal of dust and stone chips from the ground. The hollow design of the triangular stop 8 ensures it contacts the ground during machine movement, minimizing friction caused by excessive contact area. A support base 91 with elastic support presses the triangular stop 8 downwards, ensuring it adheres to the ground and enhancing its dust-blocking ability. Furthermore, the roller 94 improves the mobility of the support base 91 and reduces frictional stress between it and the ground.

[0029] Finally, it should be noted that the above preferred embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although the utility model has been described in detail through the above preferred embodiments, those skilled in the art should understand that various changes can be made to it in form and detail without departing from the scope defined by the claims of this utility model.

Claims

1. A concrete floor joint cutting machine, characterized in that: The machine includes a base (1), a cutting wheel (2), a support wheel (3), a push handle (4), a protruding seat (5), and a plug (6). The cutting wheel (2) is driven by the engine to rotate and is located on the front side of the base (1). The support wheel (3) is rotatably located on both sides of the rear end of the base (1). The push handle (4) is fixedly located at the rear end of the base (1). The protruding seat (5) is fixedly located on the side of the base (1) and is located between the cutting wheel (2) and the support wheel (3). The plug (6) is vertically slidably located on the protruding seat (5). As the base (1) moves and the cutting wheel (2) cuts, the plug (6) falls into the cut ground crack, which is used for the straight guidance of the cutting machine and to push out dust and stone chips.

2. The concrete floor joint cutting machine according to claim 1, characterized in that: It also includes a counterweight (7), and the insert (6) is slidably disposed on the protruding seat (5), with the upper end of the insert (6) fixedly connected to the counterweight (7).

3. The concrete floor joint cutting machine according to claim 2, characterized in that: The protruding seat (5) has a through hole (51) for the insertion post (6) to pass through, and a number of ball bearings (52) supporting the insertion post (6) are arranged inside the through hole (51) along the moving direction of the insertion post (6).

4. The concrete floor joint cutting machine according to claim 3, characterized in that: It also includes a triangular stop (8), which is located between the support wheel (3) and the insert (6). The triangular stop (8) is installed on the lower side of the machine base (1). During the cutting operation, the front edge of the triangular stop (8) is close to the insert (6), so that the stone chips and dust are pushed away by the triangular stop (8) and away from the cutting seam.

5. The concrete floor joint cutting machine according to claim 4, characterized in that: The bottom of the triangular stop (8) is hollow.

6. The concrete floor joint cutting machine according to claim 5, characterized in that: It also includes a support base (91), a spring (92) and a sliding block (93). The support base (91) is fixedly disposed on the side of the base (1). The support base (91) is located between the insert (6) and the support wheel (3). The sliding block (93) is slidably disposed below the support base (91). The spring (92) is supported between the sliding block (93) and the support base (91). The triangular stop block (8) is fixedly connected to the sliding block (93).

7. The concrete floor joint cutting machine according to claim 6, characterized in that: It also includes rollers (94), which are rotatably connected to both sides of the sliding block (93). During the cutting process, the rollers (94) support the sliding block (93) to move on the ground.

8. The concrete floor joint cutting machine according to claim 7, characterized in that: It also includes a dust baffle (81), which is fixedly installed on the top side of the triangular block (8) to block flying dust.

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