A water permeable concrete joint cutting device

Abstract

The utility model discloses a kind of water permeable concrete cutting joint devices, it is related to concrete cutting joint technical field, including lifting platform, gear, rack and first roller, the rotation axis is connected with the servo motor of lifting platform outer wall side surface, gear is provided on rotation axis outer wall side surface, the protruding gear teeth of gear outside and rack are mutually engaged, first connecting shaft is provided in the groove inner wall right side, first roller is connected to the other end of first connecting shaft, second connecting shaft is provided in the groove inner wall left side, second roller is connected to the other end of second connecting shaft. The utility model is equipped with lifting platform, gear, rack, servo motor and fixed frame, realize the accurate control of cutting joint depth, improve the control precision of cutting joint depth, satisfy the accurate requirement of cutting joint depth to different engineering.

Description

Technical Field

[0001] This utility model relates to the field of concrete cutting technology, specifically a permeable concrete cutting device. Background Technology

[0002] In municipal engineering, landscaping and other fields, permeable concrete is widely used due to its good permeability and eco-friendly characteristics. In order to avoid irregular cracking caused by temperature stress or shrinkage deformation during the hardening process of permeable concrete, it is necessary to cut joints after construction. By pre-setting joint channels, stress release is guided and structural integrity is ensured.

[0003] Existing defects: Traditional cutting equipment is difficult to automatically and accurately adjust the cutting depth, and relies heavily on manual experience for adjustment, which is difficult to accurately meet design requirements. It is easy to cause structural damage or cutting failure due to cutting too deep or too shallow. The lifting mechanism is not stable enough, and it is easy to sway left and right during the cutting process, resulting in uneven cutting depth or skewed cutting, which affects the quality of the project.

[0004] Patent CN222375161U discloses a rolling concrete pavement cutting device. The above patent reduces labor intensity and improves construction efficiency and economy. However, there is still room for optimization in terms of automatically adjusting the cutting depth and improving the stability of lifting.

[0005] Therefore, this utility model proposes a permeable concrete cutting device that can precisely adjust the cutting depth and maintain lifting stability. Utility Model Content

[0006] The purpose of this invention is to provide a permeable concrete cutting device to solve the problem mentioned in the background art that traditional cutting equipment is difficult to accurately adjust the cutting depth.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a permeable concrete cutting device, comprising a lifting platform, a gear, a rack, and a first roller. The lifting platform has a groove at its front end and a recess at its bottom. A rotating shaft is provided on the inner wall of the recess, with one end connected to the side of the recess and the other end passing through the recess and connected to a servo motor on the outer wall of the lifting platform. A gear is provided on the outer wall of the rotating shaft, with protruding teeth on the outer side of the gear meshing with the rack. A first connecting shaft is provided on the right side of the inner wall of the groove, with the other end of the first connecting shaft connected to the first roller. A second connecting shaft is provided on the left side of the inner wall of the groove, with the other end of the second connecting shaft connected to the second roller.

[0008] Preferably, the rack is disposed at the bottom end of the groove on the front side of the fixing frame, a first sliding groove is disposed on the right side of the outer wall of the fixing frame, and a second sliding groove is disposed on the left side of the outer wall of the fixing frame. The first sliding groove and the second sliding groove are the same size and have the same structure, and are symmetrically distributed on the left and right sides of the outer wall of the fixing frame. Two connecting holes are disposed on the rear side of the fixing frame, respectively disposed at the upper and lower ends of the rear side of the fixing frame.

[0009] Preferably, the inner walls of the first sliding groove are fitted together with the outer walls of the first roller, and the inner walls of the second sliding groove are fitted together with the outer walls of the second roller.

[0010] Preferably, the outer wall of the lifting platform is provided with a tenon groove on the side and a first screw hole is provided at the top of the outer wall of the lifting platform. The first screw hole passes through the lifting platform and the tenon groove and extends out from the bottom of the lifting platform. The tenon groove and the tenon are fitted together. A second screw hole is provided at the top of the outer wall of the tenon.

[0011] Preferably, the second screw hole passes through the tenon and protrudes from the bottom of the tenon. The first screw hole and the second screw hole are concentrically matched. The bolt passes through the first screw hole and the second screw hole to fix the tenon to the lifting platform.

[0012] Preferably, the tenon is installed on the outer wall side of the base, and a first baffle and a second baffle are provided at the top of the outer wall of the base. The first baffle and the second baffle are symmetrically distributed on the base. A drive shaft is provided on the outer wall side of the second baffle. The other end of the drive shaft passes through the first baffle and is connected to a drive motor on the outside of the first baffle. A slitting blade is provided on the outer wall of the drive shaft.

[0013] Preferably, a first connecting wire is provided at the bottom of the outer wall of the servo motor, and a second connecting wire is provided at the bottom of the outer wall of the drive motor. Both the first connecting wire and the second connecting wire are connected to the operating console.

[0014] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model, by installing a lifting platform, gears, racks, servo motors, and a fixed frame, achieves precise control of the kerf depth. The servo motor drives the gears to mesh and transmit along the rack, converting the kerf depth parameter into the number of gear rotations for precise execution. This allows the lifting platform to drive the kerf blade to move stably at the preset depth, significantly improving the control accuracy of the kerf depth. This meets the precise requirements of different projects for kerf depth and solves the problems of excessively deep, shallow, or uneven kerf depth caused by the reliance on manual experience in traditional devices, as well as structural damage or kerf failure caused by inaccurate depth control. 2. This utility model, by installing a first roller, a second roller, a first sliding groove, and a second sliding groove, achieves smooth guidance and limiting during the movement of the lifting platform. The roller and the sliding groove are interlocked, providing dual guidance and support for the vertical movement of the lifting platform, effectively limiting lateral swaying and distributing force, enhancing the stability and balance of the lifting platform's operation, and avoiding jamming or tilting during the lifting process. It solves the problem of traditional devices lacking effective guidance and limiting in the lifting mechanism, resulting in severe swaying or jamming during the cutting process, affecting the cutting quality and efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the lifting platform structure of this utility model; Figure 3 This is a schematic diagram of the slitting blade structure of this utility model; Figure 4 This is a top view of the lifting platform structure of this utility model; Figure 5 This is a side view of the present invention. Figure 6 This is a schematic diagram of the connection hole structure on the back of the fixing frame of this utility model. In the diagram: 1. Lifting platform; 2. Rotating shaft; 3. Gear; 4. Fixing frame; 5. Rack; 6. First connecting shaft; 7. First roller; 8. Second connecting shaft; 9. Second roller; 10. Servo motor; 11. First connecting line; 12. Tenon; 13. First screw hole; 14. Tenon; 15. Second screw hole; 16. Base; 17. First baffle; 18. Second baffle; 19. Drive shaft; 20. Drive motor; 21. Second connecting line; 22. Cutting blade; 23. First sliding groove; 24. Second sliding groove; 25. Bolt; 26. Connecting hole; 27. Recess. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0018] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0019] Please see Figure 2 , Figure 3 and Figure 6 An embodiment of this utility model provides a permeable concrete cutting device, wherein a first screw hole 13 passes through the lifting platform 1 and the tenon 12 and exits from the bottom end of the lifting platform 1; the tenon 12 and the tenon 14 are fitted together; a second screw hole 15 is provided at the top of the outer wall of the tenon 14; the second screw hole 15 passes through the tenon 14 and exits from the bottom end of the tenon 14; the first screw hole 13 and the second screw hole 15 are concentrically matched and their centers are aligned with each other; a bolt 25 passes through the first screw hole 13 and the second screw hole 15 to fix the tenon 14 to the lifting platform 1.

[0020] Furthermore, the operator first fixes the two connecting holes 26 on the rear side of the fixing frame 4 to the cutting equipment with bolts 25, then puts the tenon 14 on the base 16 into the mortise 12 in the lifting platform 1 so that the tenon 14 and the mortise 12 fit together. Then the operator screws the bolts 25 through the first screw hole 13 and the second screw hole 15 to fix the base 16 and the lifting platform 1 together. Then check whether the servo motor 10 and the drive motor 20 can operate normally. After the check is completed, the operator performs the cutting operation.

[0021] Please see Figure 1 , Figure 2 and Figure 4This utility model provides an embodiment of a permeable concrete cutting device. A rotating shaft 2 is provided on the inner wall side of the recess 27. One end of the rotating shaft 2 is connected to the side of the recess 27, and the other end passes through the recess 27 and is connected to a servo motor 10 on the outer wall side of the lifting platform 1. The bottom surface of the groove of the lifting platform 1 and the front side of the fixing frame 4 are fitted together. The protruding teeth on the outer side of the gear 3 mesh with the rack 5. A first connecting shaft 6 is connected to a first roller 7, and a second connecting shaft 8 is connected to a second roller 9. The two sides of the inner wall of the first sliding groove 23 are fitted together with the outer wall of the first roller 7, and the bottom end of the inner wall of the first sliding groove 23 is fitted together with the top end of the outer wall of the first roller 7. The two sides of the inner wall of the second sliding groove 24 are fitted together with the outer wall side of the second roller 9, and the bottom end of the inner wall of the second sliding groove 24 is fitted together with the top end of the outer wall of the second roller 9. A first connecting line 11 is provided at the bottom end of the outer wall of the servo motor 10, and the first connecting line 11 is connected to the operating table.

[0022] Furthermore, the operator sets the kerf depth to 50mm on the operating table. The initial height of the lifting platform 1 is at the middle of the rack 5 in the fixed frame 4, where the kerf blade 22 contacts the ground. The distance that the lifting platform 1 moves after one revolution of the gear 3 is 20mm. The operating table calculates and converts the kerf depth of 50mm into the number of revolutions of the gear 3 (2.5 revolutions). At this time, the operator starts the servo motor 10 through the operating table. The operating table transmits the signal to the servo motor 10 through the first connecting line 11. The servo motor 10 starts and drives the rotating shaft 2 to rotate. The rotation of the rotating shaft 2 drives the outer gear 3 to rotate. The gear 3 and the rack 5 mesh with each other. The rotation of the gear 3 drives the lifting platform 1 to move downward slowly. The downward movement of the lifting platform 1 drives the base 16 to move downward. At this time, the first roller 7 on the side of the groove of the lifting platform 1 moves downward under the drive of the lifting platform 1, and the second roller 9 moves downward under the drive of the lifting platform 1. The first roller 7 moves downward along the first sliding groove 23, and the second roller 9 moves downward along the second sliding groove 24. The first roller 7 and the second roller 9 apply a clamping force to the first sliding groove 23 and the second sliding groove 24, so that the lifting platform 1 can only move up and down and will not sway left and right, thus ensuring the stability of the lifting platform 1. When the servo motor 10 rotates 2.5 revolutions, the operating panel controls the servo motor 10 to stop rotating.

[0023] Please see Figure 1 , Figure 3 and Figure 5 An embodiment of this utility model provides a permeable concrete cutting device. The top of the outer wall of the base 16 is provided with a first baffle 17 and a second baffle 18. The side of the outer wall of the second baffle 18 is provided with a drive shaft 19. The other end of the drive shaft 19 passes through the first baffle 17 and is connected to a drive motor 20 on the outside of the first baffle 17. The outer wall of the drive shaft 19 is provided with a cutting blade 22. The bottom of the outer wall of the drive motor 20 is provided with a second connecting line 21, which is connected to the operating table.

[0024] Furthermore, after setting the kerf depth to 50mm, before starting the servo motor 10, the operator first starts the drive motor 20. The operating table starts the drive motor 20 through the second connecting line 21. The drive motor 20 drives the drive shaft 19 to rotate. The rotation of the drive shaft 19 drives the kerf blade 22 to rotate. The base 16 is set on the side of the lifting platform 1 so that the concrete dust cut by the kerf blade 22 will not be directly sprinkled into the lifting platform 1 and the fixed frame 4, preventing dust from entering the gear 3 and rack 5. The base 16 moves downward under the drive of the lifting platform 1. The downward movement of the base 16 drives the first baffle 17 and the second baffle 18 to move downward, thereby driving the kerf blade 22 to move downward. The kerf blade 22 moves downward to start cutting the concrete ground. Under the drive of the lifting platform 1, it gradually moves downward until it stops 50mm away from the top surface of the concrete.

[0025] Please see Figure 1 , Figure 2 and Figure 3 An embodiment of this utility model provides a permeable concrete cutting device, wherein a first connecting shaft 6 is connected to a first roller 7, a second connecting shaft 8 is connected to a second roller 9, the inner walls of the first sliding groove 23 are fitted together with the outer walls of the first roller 7, the inner walls of the second sliding groove 24 are fitted together with the outer walls of the second roller 9, and a first connecting line 11 is provided at the bottom of the outer wall of the servo motor 10, the first connecting line 11 being connected to the operating table.

[0026] Furthermore, after the cutting depth is adjusted, the operator cuts the concrete using the cutting equipment. After cutting, the operator controls the drive motor 20 to stop rotating via the control panel. The control panel sends a command to the drive motor 20 via the second connecting line 21. Upon receiving the signal, the drive motor 20 stops running, thus stopping the cutting blade 22 from rotating. The operator then controls the servo motor 10 to start via the control panel. The servo motor 10 starts and drives the rotating shaft 2 to rotate. The rotating shaft 2 drives the gear 3 to rotate. The gear 3 and the rack 5 mesh with each other, while the rack 5 remains stationary. The rotation of the gear 3 drives the lifting platform 1 to move upward. The movement of the lifting platform 1 drives the first roller 7 and the second roller 9 to move upward. The first roller 7 and the second roller 9 move upward along the first sliding groove 23 and the second sliding groove 24, respectively, ensuring the stability and balance of the upward movement of the lifting platform 1 until the cutting blade 22 moves above the concrete surface and stops.

[0027] Working principle: First, the operator fixes the fixing frame 4 to the cutting equipment with bolts 25 through the connecting hole 26 on the rear side of the fixing frame 4. Then, the tenon 14 of the base 16 is inserted into the tenon 12 of the lifting platform 1. The bolts 25 are screwed through the first screw hole 13 and the second screw hole 15 to fix the base 16 to the lifting platform 1. Then the operator sets a cutting depth of 50mm on the operating table, starts the drive motor 20, drives the cutting blade 22 to rotate through the drive shaft 19, and then starts the servo motor 10. After receiving the signal through the first connecting line 11, the servo motor 10 drives the rotating shaft 2 and the gear 3 to rotate. The gear 3 meshes with the rack 5 to make the lifting platform 1 move down. At the same time, the first roller 7 and the second roller 9 move along the first sliding groove 23 and the second sliding groove 24 to ensure the stability of the lifting platform 1. Finally, the base 16 moves down with the lifting platform 1, driving the cutting blade 22 to cut the concrete downwards until it reaches a depth of 50mm. The servo motor 10 stops. After the cutting is completed, the operating table stops the drive motor 20 through the second connecting line 21, so that the cutting blade 22 stops rotating. Then, the servo motor 10 is controlled to reverse, driving the lifting platform 1 and the cutting blade 22 to move upwards until the cutting blade 22 returns to the surface of the concrete and stops.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A permeable concrete cutting device, comprising a lifting platform (1), a gear (3), a rack (5), and a first roller (7), characterized in that: The lifting platform (1) has a groove at its front end and a pit (27) at the bottom of the groove. A rotating shaft (2) is provided on the inner wall side of the pit (27). One end of the rotating shaft (2) is connected to the side of the pit (27), and the other end of the rotating shaft (2) passes through the pit (27) and is connected to the servo motor (10) on the outer wall side of the lifting platform (1). A gear (3) is provided on the outer wall side of the rotating shaft (2). The protruding teeth on the outer side of the gear (3) mesh with the rack (5). A first connecting shaft (6) is provided on the right side of the inner wall of the groove. A first roller (7) is connected to the other end of the first connecting shaft (6). A second connecting shaft (8) is provided on the left side of the inner wall of the groove. A second roller (9) is connected to the other end of the second connecting shaft (8).

2. The permeable concrete cutting device according to claim 1, characterized in that: The rack (5) is set at the bottom of the groove on the front side of the fixed frame (4). The right side of the outer wall of the fixed frame (4) is provided with a first sliding groove (23), and the left side of the outer wall of the fixed frame (4) is provided with a second sliding groove (24). The first sliding groove (23) and the second sliding groove (24) are the same size and have the same structure. They are symmetrically distributed on the left and right sides of the outer wall of the fixed frame (4). The rear side of the fixed frame (4) is provided with two connecting holes (26), which are respectively located at the upper and lower ends of the rear side of the fixed frame (4).

3. The permeable concrete cutting device according to claim 2, characterized in that: The inner walls of the first sliding groove (23) are fitted together with the outer walls of the first roller (7), and the inner walls of the second sliding groove (24) are fitted together with the outer walls of the second roller (9).

4. The permeable concrete cutting device according to claim 1, characterized in that: The lifting platform (1) has a mortise (12) on its outer side and a first screw hole (13) on its top. The first screw hole (13) passes through the lifting platform (1) and the mortise (12) and exits from the bottom of the lifting platform (1). The mortise (12) and the tenon (14) fit together. The top of the outer wall of the tenon (14) has a second screw hole (15).

5. The permeable concrete cutting device according to claim 4, characterized in that: The second screw hole (15) passes through the tenon (14) and emerges from the bottom of the tenon (14). The first screw hole (13) and the second screw hole (15) are concentrically matched. The bolt (25) passes through the first screw hole (13) and the second screw hole (15) to fix the tenon (14) to the lifting platform (1).

6. The permeable concrete cutting device according to claim 4, characterized in that: The tenon (14) is installed on the outer side of the base (16). The top of the outer wall of the base (16) is provided with a first baffle (17) and a second baffle (18). The first baffle (17) and the second baffle (18) are symmetrically distributed on the base (16). The outer side of the second baffle (18) is provided with a drive shaft (19). The other end of the drive shaft (19) passes through the first baffle (17) and is connected to the drive motor (20) on the outside of the first baffle (17). The outer wall of the drive shaft (19) is provided with a cutting blade (22).

7. The permeable concrete cutting device according to claim 1, characterized in that: The servo motor (10) has a first connecting line (11) at the bottom of its outer wall, and the drive motor (20) has a second connecting line (21) at the bottom of its outer wall. Both the first connecting line (11) and the second connecting line (21) are connected to the operating table.

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