Floor joint cutting device

Abstract

The invention discloses a floor joint cutting device. Comprising a bottom plate, a joint cutting unit, a first metal shell fixedly assembled on the bottom plate and arranged on the outer side of the joint cutting unit in a sleeving mode, a vertical partition plate fixedly assembled on the bottom plate and making contact with the edge of the first metal shell in an attached mode, and a second metal shell horizontally and rotationally connected with the top of the first metal shell and detachably connected with the partition plate. The driving unit is assembled on the bottom plate, the handrail is assembled on the bottom plate, the joint cutting unit comprises a saw blade, the bottom of the saw blade downwards penetrates through the bottom plate, the saw blade is located on the side, away from the first metal shell, of the partition plate, and standing parts are arranged on the first metal shell and the second metal shell correspondingly. The two feet of an operator can tread on the standing parts of the first metal shell and the second metal shell correspondingly, the joint cutting device is prevented from tilting upwards in the cutting process through the gravity of the operator, the balance weight of the joint cutting device is reduced, and therefore the overall weight is reduced, and carrying and using are convenient.

Description

Technical Field

[0001] The present invention relates to the technical field related to floor construction, and in particular to a floor cutting device. Background Art

[0002] Cutting joints is an important step in concrete floor construction. It not only prevents the formation of cracks, improves the durability and service life of the floor, but also ensures the flatness and beauty of the ground.

[0003] Concrete will expand and contract during the setting process or in use. In order to release these stresses, cutting joints at certain intervals can prevent cracks from occurring, thus ensuring the service life of the floor. Through the process of marking and cutting joints, construction workers can accurately control the position and size of expansion joints, so that cracks appear in the predetermined grooves instead of being randomly distributed on the floor. Reasonable expansion joint design and timely caulking can extend the service life of the floor and reduce the cost and trouble of later maintenance.

[0004] In large-area floor construction, a cart-type cutting device is used for cutting. Although it is easy to use, it is heavy and inconvenient to carry. Therefore, in small-area floor construction, operators still use handheld cutting machines for cutting. During this process, the operator needs to bend over and operate the cutting machine, but the efficiency is low and the labor intensity is high. Therefore, it is necessary to design a floor cutting device. Summary of the invention

[0005] In view of the above technical problems, the purpose of the present invention is to overcome the problem that the cart-type cutting device in the prior art is heavy and inconvenient to carry and use.

[0006] In order to achieve the above-mentioned purpose, the present invention provides a floor slitting device, comprising: a bottom plate, a slitting unit mounted on the upper surface of the bottom plate, a first metal shell fixedly mounted on the bottom plate and sleeved on the outer side of the slitting unit, a vertical partition fixedly mounted on the bottom plate and in close contact with the edge of the first metal shell, a second metal shell horizontally rotatably connected to the top of the first metal shell and detachably connected to the partition, a travel unit mounted on the bottom plate, and a handrail mounted on the bottom plate;

[0007] The cutting unit comprises a saw blade which is in a vertical state and has a bottom portion passing through the bottom plate downwards. The saw blade is located on a side of the partition away from the first metal shell. The first metal shell and the second metal shell are both provided with a standing portion.

[0008] Preferably, a cooling unit is installed on the first metal shell, and the cooling unit includes a mounting base fixedly mounted on the first metal shell and located directly above the saw blade, and two connection ports with spaced intervals are arranged on the mounting base, one of the connection ports is detachably connected to a water storage mechanism, and the other connection port is connected to a connector.

[0009] Preferably, the water storage mechanism includes a water reservoir and a first connecting pipe sleeve threadedly mounted on the end of the water reservoir, the end of the first connecting pipe sleeve away from the water reservoir is threadedly assembled on the corresponding connecting port, and the inner diameter of the first connecting pipe sleeve decreases gradually in the direction away from the water reservoir.

[0010] Preferably, the connector comprises a tapered tube with a large diameter protruding outwardly and a first annular flange, and a second connecting tube sleeve threadedly sleeved on the corresponding connecting port, the end of the connecting port is recessed and provided with a stepped groove for accommodating the first annular flange, the small diameter end of the tapered tube is arranged toward the saw blade, and the inner wall of the second connecting tube sleeve is protruding and provided with a second annular flange that can be pressed on the first annular flange.

[0011] Preferably, the outer wall of the end of the second connecting sleeve away from the connecting port is a tapered outer wall with a narrowed mouth.

[0012] Preferably, at least one first connection portion arranged close to the partition is fixedly connected to the second metal shell, and a second connection portion corresponding to the corresponding first connection portion is fixedly connected to the partition, and the first connection portion and the corresponding second connection portion are connected by bolts.

[0013] Preferably, the travel unit includes a mounting plate fixedly connected to the base plate and located in the forward direction of the base plate, a pair of support wheels mounted on the base plate and arranged on the mounting plate, a driving wheel mounted on the mounting plate, and a driving mechanism mounted on the mounting plate for driving the driving wheel to rotate, and the driving wheel and the pair of support wheels are distributed in a triangular shape.

[0014] Preferably, the driving mechanism includes a first motor mounted on a mounting plate via a first mounting frame, a horizontal worm connected to the output shaft of the first motor and mounted on the mounting plate via a plurality of first shaft seats, a first connecting shaft coaxially fixedly connected to the driving wheel and axially connected to the mounting plate, a second connecting shaft mounted on the mounting plate via a plurality of second shaft seats and parallel to the first connecting shaft, and a worm wheel coaxially fixedly sleeved on the second connecting shaft and meshing with the worm, and the first connecting shaft and the second connecting shaft are connected via a pair of meshing gears.

[0015] Preferably, the slitting unit also includes a second motor mounted on the base plate via a second mounting bracket and located on the side of the partition away from the second metal shell, and a horizontal transmission shaft mounted on the base plate via a third shaft seat and connected to the output shaft of the second motor, the second motor is located inside the first metal shell, and the transmission shaft passes through the partition and is coaxially connected to the saw blade.

[0016] According to the above technical scheme, a floor cutting device provided by the present invention has the following beneficial technical effects compared with the prior art: when in use, the operator's feet can step on the standing parts of the first metal shell and the second metal shell respectively, and the operator's own gravity can be used to prevent the cutting device from tilting upward during the cutting process, thereby reducing the counterweight of the cutting device itself and thus reducing the overall weight, making it easier to carry and use. The operator can hold the handrails with both hands to improve the operator's standing stability, and can also reduce labor intensity without bending over.

[0017] Other features and advantages of the present invention will be described in detail in the subsequent specific implementation mode; and the parts not involved in the present invention are the same as the prior art or can be implemented by using the prior art. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present invention but do not constitute a limitation of the present invention. In the accompanying drawings:

[0019] Figure 1 The three-dimensional structure diagram of a floor cutting device provided by the present invention is Figure 1 ;

[0020] Figure 2 The three-dimensional structure diagram of a floor cutting device provided by the present invention is Figure 2 ;

[0021] Figure 3 It is a cross-sectional view of a cooling unit of a floor cutting device provided by the present invention;

[0022] Figure 4 It is a partial three-dimensional structural schematic diagram of a traveling unit of a floor cutting device provided by the present invention;

[0023] Figure 5 It is a partial three-dimensional structural schematic diagram of a floor cutting device provided by the present invention.

[0024] Description of Reference Numerals

[0025] 1. Base plate; 2. First metal shell; 3. Partition; 4. Second metal shell; 5. Armrest; 6. Saw blade; 7. Standing part; 8. Mounting seat; 9. Connection port; 10. Water reservoir; 11. First connecting sleeve; 12. First annular flange; 13. Conical tube; 14. Second connecting sleeve; 15. Second annular flange; 16. Bolt; 17. Mounting plate; 18. Support wheel; 19. Drive wheel; 20. First motor; 21. Worm; 22. First connecting shaft; 23. Second connecting shaft; 24. Worm wheel; 25. Gear; 26. Second motor; 27. Transmission shaft. DETAILED DESCRIPTION

[0026] The specific implementation of the present invention is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described here is only used to illustrate and explain the present invention, and is not used to limit the present invention.

[0027] In the present invention, unless otherwise stated, directional words such as "upper, lower, inside, outside" contained in a term merely represent the orientation of the term in normal usage, or are common names understood by those skilled in the art, and should not be regarded as limitations on the term.

[0028] like Figure 1-5 As shown, a floor slitting device comprises: a bottom plate 1, a slitting unit mounted on the upper surface of the bottom plate 1, a first metal shell 2 fixedly mounted on the bottom plate 1 and sleeved on the outer side of the slitting unit, a vertical partition 3 fixedly mounted on the bottom plate 1 and in close contact with the edge of the first metal shell 2, a second metal shell 4 horizontally rotatably connected to the top of the first metal shell 2 and detachably connected to the partition 3, a travel unit mounted on the bottom plate 1, and a handrail 5 mounted on the bottom plate 1;

[0029] The cutting unit includes a saw blade 6 which is in a vertical state and has its bottom downwardly passing through the bottom plate 1. The saw blade 6 is located on a side of the partition 3 away from the first metal shell 2. The first metal shell 2 and the second metal shell 4 are both provided with a standing portion 7.

[0030] In the above technical solution, when in use, the operator's feet can step on the standing parts 7 of the first metal shell 2 and the second metal shell 4 respectively, and use the operator's own gravity to enable the saw blade 6 to be inserted into the ground, thereby preventing the slitting device from tilting upward during the cutting process, thereby reducing the counterweight of the slitting device itself, reducing the overall weight, and facilitating carrying.

[0031] The first metal shell 2 and the second metal shell 4 are both made of metal materials, and can be made of existing metal materials such as iron and stainless steel. This can improve the load-bearing capacity of the first metal shell 2 and the second metal shell 4, and can also intercept flying fragments when the saw blade 6 is damaged, thereby protecting the operator.

[0032] The operator can hold the handrail 5 with both hands to improve the operator's standing stability, and can also reduce labor intensity without bending over.

[0033] In a preferred embodiment of the invention, a cooling unit is installed on the first metal shell 2, and the cooling unit includes a mounting base 8 fixedly mounted on the first metal shell 2 and located directly above the saw blade 6, and two connection ports 9 with a spacing are arranged on the mounting base 8, one of the connection ports 9 is detachably connected to a water storage mechanism, and the other connection port 9 is connected to a connector.

[0034] In the above technical solution, the saw blade 6 will heat up due to friction during the cutting process, and needs to be used with a cooling unit when used for a long time. The coolant can be water, and the connector and the faucet can be connected by a water pipe so that the water flows directly into the corresponding connection port 9; when it is impossible to directly connect to the faucet, a water storage mechanism can be used to fill water and then assembled on the corresponding connection port 9. The water in the water storage mechanism flows into the corresponding connection port 9 due to gravity.

[0035] The water flows downward from the connection port 9 onto the saw blade 6 , which can not only cool the saw blade 6 but also play a role in preventing dust.

[0036] In a preferred embodiment of the invention, the water storage mechanism includes a water reservoir 10 and a first connecting pipe sleeve 11 threadedly installed on the end of the water reservoir 10, the end of the first connecting pipe sleeve 11 away from the water reservoir 10 is threadedly assembled on the corresponding connecting port 9, and the inner diameter of the first connecting pipe sleeve 11 gradually decreases in the direction away from the water reservoir 10.

[0037] In the above technical solution, after water is filled into the water reservoir 10, the first connecting pipe sleeve 11 is assembled on the end of the water reservoir 10, and then the first connecting pipe sleeve 11 is assembled on the corresponding connecting port 9. The first connecting pipe sleeve 11 can reduce the amount of water lost in the water reservoir 10 during the connection process; the inner diameter of the first connecting pipe sleeve 11 gradually decreases in the direction away from the water reservoir 10, which can limit the flow rate of water.

[0038] In a preferred embodiment of the invention, the connector includes a tapered tube 13 with a large diameter protruding outward and a first annular flange 12, and a second connecting tube sleeve 14 threadedly sleeved on the corresponding connecting port 9, the end of the connecting port 9 is recessed with a stepped groove for accommodating the first annular flange 12, the small diameter end of the tapered tube 13 is arranged toward the saw blade 6, and the inner wall of the second connecting tube sleeve 14 is protruding with a second annular flange 15 that can be pressed on the first annular flange 12.

[0039] In the above technical solution, the faucet and the second connecting pipe sleeve 14 can be directly connected through a water pipe, and water will flow out directly through the tapered pipe 13 .

[0040] In a preferred embodiment of the present invention, the outer wall of the end of the second connecting sleeve 14 away from the connecting port 9 is a tapered outer wall with a reduced opening.

[0041] In the above technical solution, it is convenient to assemble the water pipe on the second connecting pipe sleeve 14 .

[0042] In a preferred embodiment of the invention, at least one first connection portion arranged close to the partition 3 is fixedly connected to the second metal shell 4, and a second connection portion corresponding to the corresponding first connection portion is fixedly connected to the partition 3, and the first connection portion and the corresponding second connection portion are connected by bolts 16.

[0043] In the above technical solution, when the saw blade 6 needs to be replaced, the bolt 16 is loosened and removed, and the second metal shell 4 is rotated to expose the saw blade 6. After the saw blade 6 is replaced, the second metal shell 4 is rotated back to its original position and fixed by the bolt 16.

[0044] In a preferred embodiment of the invention, the travel unit includes a mounting plate 17 fixedly connected to the base plate 1 and located in the forward direction of the base plate 1, a pair of support wheels 18 mounted on the base plate 1 and located on the mounting plate 17, a driving wheel 19 mounted on the mounting plate 17, and a driving mechanism mounted on the mounting plate 17 for driving the driving wheel 19 to rotate, and the driving wheel 19 and the pair of support wheels 18 are distributed in a triangular shape.

[0045] In the above technical solution, the driving mechanism drives the driving wheel 19 to rotate, which can drive the device forward, and the saw blade 6 will cut a gap.

[0046] In a preferred embodiment of the invention, the driving mechanism includes a first motor 20 assembled on a mounting plate 17 through a first mounting frame, a horizontal worm 21 connected to the output shaft of the first motor 20 and assembled on the mounting plate 17 through a plurality of first shaft seats, a first connecting shaft 22 coaxially fixedly connected to the driving wheel 19 and axially connected to the mounting plate 17, a second connecting shaft 23 assembled on the mounting plate 17 through a plurality of second shaft seats and parallel to the first connecting shaft 22, and a worm wheel 24 coaxially fixedly sleeved on the second connecting shaft 23 and meshing with the worm 21, and the first connecting shaft 22 and the second connecting shaft 23 are transmission connected by a pair of meshing gears 25.

[0047] In the above technical solution, the first motor 20 drives the worm wheel 24 and the second connecting shaft 23 to rotate through the worm 21, and then drives the first connecting shaft 22 to rotate through a pair of gears 25, and then drives the driving wheel 19 to rotate; the function of the worm wheel 24 and the worm 21 is to reduce the rotation speed of the driving wheel 19.

[0048] In a preferred embodiment of the invention, the slitting unit also includes a second motor 26 mounted on the base plate 1 through a second mounting frame and located on the side of the partition 3 away from the second metal shell 4, and a horizontal transmission shaft 27 mounted on the base plate 1 through a third shaft seat and connected to the output shaft of the second motor 26, the second motor 26 is located inside the first metal shell 2, and the transmission shaft 27 passes through the partition 3 and is coaxially connected to the saw blade 6.

[0049] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0050] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0051] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. A floor cutting device, characterized in that: include: A base plate (1), a slitting unit mounted on the upper surface of the base plate (1), a first metal shell (2) fixedly mounted on the base plate (1) and sleeved on the outer side of the slitting unit, a vertical partition (3) fixedly mounted on the base plate (1) and in close contact with the edge of the first metal shell (2), a second metal shell (4) horizontally rotatably connected to the top of the first metal shell (2) and detachably connected to the partition (3), a travel unit mounted on the base plate (1), and a handrail (5) mounted on the base plate (1); The cutting unit comprises a saw blade (6) which is in a vertical state and has its bottom portion passing through the bottom plate (1) downwards. The saw blade (6) is located on a side of the partition (3) away from the first metal shell (2). Both the first metal shell (2) and the second metal shell (4) are provided with a standing portion (7).

2. A floor cutting device according to claim 1, characterized in that: The first metal shell (2) is equipped with a cooling unit, the cooling unit comprising a mounting seat (8) fixedly mounted on the first metal shell (2) and located directly above the saw blade (6), the mounting seat (8) being provided with two spaced connection ports (9), one of the connection ports (9) being detachably connected to a water storage mechanism, and the other connection port (9) being connected to a connector.

3. A floor cutting device according to claim 2, characterized in that: The water storage mechanism comprises a water reservoir (10) and a first connecting pipe sleeve (11) threadedly mounted on the end of the water reservoir (10); the end of the first connecting pipe sleeve (11) away from the water reservoir (10) is threadedly mounted on the corresponding connecting port (9); the inner diameter of the first connecting pipe sleeve (11) gradually decreases in a direction away from the water reservoir (10).

4. A floor cutting device according to claim 2, characterized in that: The connector comprises a tapered tube (13) with a first annular flange (12) protruding outwardly from a large diameter, and a second connecting tube sleeve (14) threadedly sleeved on a corresponding connecting port (9), the end of the connecting port (9) being recessed with a stepped groove for accommodating the first annular flange (12), the small diameter end of the tapered tube (13) being arranged toward the saw blade (6), and a second annular flange (15) protruding from the inner wall of the second connecting tube sleeve (14) being capable of being pressed against the first annular flange (12).

5. A floor cutting device according to claim 4, characterized in that: The outer wall of the end of the second connecting pipe sleeve (14) away from the connecting port (9) is a tapered outer wall with a narrowed mouth.

6. A floor cutting device according to claim 1, characterized in that: At least one first connection portion disposed close to the partition (3) is fixedly connected to the second metal shell (4), and a second connection portion corresponding to the first connection portion is fixedly connected to the partition (3), and the first connection portion and the corresponding second connection portion are connected via bolts (16).

7. A floor cutting device according to claim 1, characterized in that: The travel unit comprises a mounting plate (17) fixedly connected to the base plate (1) and located in the forward direction of the base plate (1), a pair of support wheels (18) mounted on the base plate (1) and located on the mounting plate (17), a driving wheel (19) mounted on the mounting plate (17), and a driving mechanism mounted on the mounting plate (17) for driving the driving wheel (19) to rotate, wherein the driving wheel (19) and the pair of support wheels (18) are distributed in a triangular shape.

8. A floor cutting device according to claim 7, characterized in that: The driving mechanism comprises a first motor (20) mounted on a mounting plate (17) via a first mounting frame, a horizontal worm (21) connected to the output shaft of the first motor (20) and mounted on the mounting plate (17) via a plurality of first shaft seats, a first connecting shaft (22) coaxially fixedly connected to a driving wheel (19) and axially connected to the mounting plate (17), a second connecting shaft (23) mounted on the mounting plate (17) via a plurality of second shaft seats and parallel to the first connecting shaft (22), and a worm wheel (24) coaxially fixedly sleeved on the second connecting shaft (23) and meshing with the worm (21), wherein the first connecting shaft (22) and the second connecting shaft (23) are transmission-connected via a pair of meshing gears (25).

9. A floor cutting device according to claim 1, characterized in that: The slitting unit further comprises a second motor (26) mounted on the base plate (1) via a second mounting frame and located on the side of the partition plate (3) away from the second metal shell (4), and a horizontal transmission shaft (27) mounted on the base plate (1) via a third shaft seat and connected to the output shaft of the second motor (26), wherein the second motor (26) is located inside the first metal shell (2), and the transmission shaft (27) passes through the partition plate (3) and is coaxially connected to the saw blade (6).

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