Concrete dividing joint vibration cutter
By designing a vibratory cutter for concrete expansion joints, and utilizing a combination of a vibrator and a water-based lubricant, the problems of complex operation and poor forming effect in traditional processes have been solved, achieving efficient and stable expansion joint cutting results.
Patent Information
- Application Number
- CN202520093922.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-15
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-01-15
AI Technical Summary
Traditional concrete expansion joint manufacturing processes are complex, produce poor results, and are prone to damaging polystyrene boards, leading to uneven or missing expansion joints.
Design a vibratory cutter for concrete dividing joints. The vibrator drives the substrate to vibrate and embeds it into the dividing plate. Combined with a water-based lubricant, friction is reduced during the cutting process, thereby improving cutting efficiency.
It improves the construction efficiency and forming quality of the expansion joints, avoids concrete falling off at the corners of the expansion joints, and reduces the complexity of operation and the risk of damage to the polystyrene board.
Smart Images

Figure CN223922636U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of the construction industry, and more specifically, to a vibratory cutter for concrete expansion joints. Background Technology
[0002] In the construction process, when it is necessary to form expansion joints in the poured concrete, the traditional method is to first embed polystyrene boards, and then manually fix them one by one with mortar.
[0003] However, polystyrene boards are easily damaged during concrete pouring, resulting in uneven or missing expansion joints. The polystyrene boards also need to be removed later to form expansion joints. Therefore, the traditional expansion joint manufacturing process is complicated, has poor forming effect, and is prone to damaging the polystyrene boards, resulting in uneven or missing expansion joints. How to invent a concrete expansion joint vibratory cutter to improve these problems has become an urgent problem to be solved by those skilled in the art. Utility Model Content
[0004] To overcome the above shortcomings, this utility model provides a concrete dividing joint vibratory cutter, which aims to improve the traditional dividing joint production process, which is complicated to operate, has poor forming effect, and is prone to damaging polystyrene boards, resulting in uneven or missing dividing joints.
[0005] This utility model is implemented as follows:
[0006] This utility model provides a concrete dividing joint vibratory cutter, including a base plate, a mounting base on the top of the base plate, a power supply box and a vibrator on both sides of the mounting base, a dividing plate connected to the base plate, triangular plates at both ends of the dividing plate, a pressure plate and a pressure sensor connected to the base plate, a telescopic spring and a compression plate connected to the pressure plate, and water tanks on both sides of the base plate, with connecting pipes and water pumps connected to the water tanks.
[0007] Preferably, the mounting base is fixedly connected to the upper side wall of the substrate, the mounting base is rotatably connected to a telescopic rod, and the upper side wall of the substrate is fixedly connected to the power supply box and the vibrator respectively.
[0008] Preferably, the water tank is located above the vibrator, a support rod is fixedly connected to the water tank, one end of the support rod is fixedly connected to the side wall of the base plate, the lower side wall of the water tank is fixedly connected to the water pump, and the water pump is fixedly connected to one end of the connecting pipe.
[0009] Preferably, the substrate has a flow divider groove inside, one side of the flow divider groove is fixedly connected to the end of the connecting pipe away from the water pump, and a plurality of linearly arrayed unidirectional drainage holes are formed between the inner wall of the flow divider groove and the lower side wall of the substrate.
[0010] Preferably, the lower sidewall of the substrate is provided with a mounting groove, and a limiting groove is provided on the inner wall of one end of the mounting groove. The mounting groove is connected to a dividing plate, and the dividing plate is arranged in a "T" shape. A limiting sliding plate is fixedly connected to the sidewall of the dividing plate, and the limiting sliding plate is slidably connected to the limiting groove. Slots are provided on both sidewalls of the dividing plate, and a limiting plug is inserted into the slot. One end of the limiting plug is fixedly connected to a triangular plate, and the triangular plate is connected with a fixing bolt. The triangular plate is fixedly connected to the substrate by the fixing bolt.
[0011] Preferably, the substrate has a placement groove on its lower sidewall, and there are two placement grooves located on opposite sides of the dividing plate. The inner wall of the placement groove away from the opening has a fixing groove, and the inner wall of the placement groove is fixedly connected to the pressure sensor.
[0012] Preferably, the inner wall of the placement groove is limited to sliding with respect to the pressure plate, the side wall of the pressure plate is fixedly connected to the telescopic spring, the end of the telescopic spring away from the pressure plate is fixedly connected to the inner wall of the fixing groove, the side wall of the pressure plate is fixedly connected to the extrusion plate, and the extrusion plate is located directly below the pressure sensor.
[0013] The beneficial effects of this utility model are:
[0014] The vibrator drives the base plate to vibrate, thereby vibrating the concrete. During use, pressing the base plate embeds the dividing plate into the unformed concrete. The corners of the dividing plate are rounded to compact the cut corners of the concrete on both sides during cutting, preventing concrete from falling off at the corners of the dividing joints during vibration. During the cutting of the concrete dividing joints, the pressure plate retracts into the placement groove, causing the extrusion plate to squeeze the pressure sensor. At this time, the water pump delivers water-based lubricant from the water tank to the diversion groove through the connecting pipe and discharges it to the surface of the base plate and the concrete layer through the one-way drainage hole. The water-based lubricant forms a lubricating film between the operating base plate and the concrete, reducing the direct contact area and lowering the coefficient of friction, thereby improving the lubrication effect between the base plate and the concrete, promoting better movement of the base plate, improving the cutting efficiency of the dividing plate, and effectively improving the construction efficiency of dividing joints in roof concrete. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of the overall structure of a vibratory cutter for concrete dividing joints provided by an embodiment of this utility model;
[0017] Figure 2 This is a schematic diagram of the upper structure of the base plate of a vibratory cutter for concrete dividing joints provided in this utility model embodiment;
[0018] Figure 3 This is a schematic diagram of the bottom structure of the base plate of a vibratory cutter for concrete dividing joints provided in this embodiment of the utility model;
[0019] Figure 4 This is a schematic diagram of the separation structure of the pressure plate and the base plate of a vibratory cutter for concrete dividing joints provided by an embodiment of this utility model;
[0020] Figure 5 This is a schematic diagram of the dividing plate and triangular plate structure of a concrete dividing joint vibratory cutter provided by an embodiment of this utility model;
[0021] Figure 6 This is a schematic diagram of the pressure plate structure of a vibratory cutter for concrete dividing joints provided by an embodiment of this utility model;
[0022] Figure 7 This is a schematic diagram of the half-section structure of the water tank of a concrete joint vibration cutter provided by an embodiment of this utility model.
[0023] In the diagram: 1. Telescopic rod; 2. Water tank; 3. Base plate; 4. Triangular plate; 41. Limit plug; 5. Mounting base; 6. Power supply box; 7. Vibrator; 8. Support rod; 9. Connecting pipe; 10. Water pump; 11. One-way drain hole; 12. Pressure plate; 13. Dividing plate; 131. Slot; 14. Limit groove; 15. Mounting groove; 16. Placement groove; 17. Pressure sensor; 18. Fixing groove; 19. Fixing bolt; 20. Limiting slide plate; 21. Telescopic spring; 22. Extrusion plate; 23. Diversion groove. Detailed Implementation
[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.
[0025] Example, refer to Figures 1-7A concrete dividing joint vibratory cutter includes a base plate 3, a mounting base 5 on the top of the base plate 3, a power supply box 6 and a vibrator 7 on both sides of the mounting base 5, a dividing plate 13 connected to the base plate 3, triangular plates 4 at both ends of the dividing plate 13, a pressure plate 12 and a pressure sensor 17 connected to the base plate 3, a telescopic spring 21 and a compression plate 22 connected to the pressure plate 12, and water tanks 2 on both sides of the base plate 3, with connecting pipes 9 and a water pump 10 connected to the water tanks 2.
[0026] Furthermore; the mounting base 5 is fixedly connected to the upper side wall of the substrate 3, and the mounting base 5 is rotatably connected to the telescopic rod 1. The upper side wall of the substrate 3 is fixedly connected to the power supply box 6 and the vibrator 7 respectively; the lower side wall of the substrate 3 is provided with a mounting groove 15, and a limiting groove 14 is provided on the inner wall of one end of the mounting groove 15. The mounting groove 15 is connected to the dividing plate 13, which is arranged in a "T" shape. The side wall of the dividing plate 13 is fixedly connected to the limiting slide plate 20, which is slidably connected to the limiting groove 14. The two side walls of the dividing plate 13 are provided with slots 131, into which a limiting plug 41 is inserted. One end of the limiting plug 41 is fixedly connected to the triangular plate 4, which is connected to a fixing bolt 19. The triangular plate 4 is fixedly connected to the substrate 3 through the fixing bolt 19.
[0027] It should be noted that the extension rod 1 allows for adjustment of the base plate 3's usability, enabling better adaptation to different ground heights. The power supply box 6 is electrically connected to both the vibrator 7 and the water pump 10. Activating the vibrator 7 causes the base plate 3 to vibrate, thus vibrating the concrete. During use, pressing the base plate 3 embeds the dividing plate 13 into the unformed concrete. Simultaneously, the vibration of the vibrator 7 reduces the resistance of the dividing plate 13 cutting into the concrete and also helps to smooth the cut seams. The concrete around the perimeter is vibrated to level it, improving its flatness and construction quality. In addition, the corners at both ends of the dividing plate 13 are rounded, and the cut corners of the concrete on both sides are compacted during cutting to prevent the concrete at the corners of the dividing joint from falling off during vibration. Furthermore, the limiting plug 41 and the slot 131 are hexagonal prisms. After the limiting plug 41 and the slot 131 are connected, the triangular plate 4 can be quickly fixed and installed by the fixing bolt 19, thereby completing the positioning of the dividing plate 13. This facilitates the subsequent quick maintenance and replacement of the dividing plate 13 and improves work efficiency.
[0028] Reference Figure 2 , Figure 3 , Figure 4 , Figure 6 and Figure 7Furthermore; the water tank 2 is located above the vibrator 7, and a support rod 8 is fixedly connected to the water tank 2. One end of the support rod 8 is fixedly connected to the side wall of the base plate 3, and the lower side wall of the water tank 2 is fixedly connected to the water pump 10. The water pump 10 is fixedly connected to one end of the connecting pipe 9; a diversion groove 23 is opened inside the base plate 3, and one side of the diversion groove 23 is fixedly connected to the end of the connecting pipe 9 away from the water pump 10. Several linearly arrayed unidirectional drainage holes 11 are opened between the inner wall of the diversion groove 23 and the lower side wall of the base plate 3; a placement groove 16 is opened on the lower side wall of the base plate 3 for placing... Two placement slots 16 are provided, and the two placement slots 16 are respectively located on the symmetrical sides of the dividing plate 13. The inner wall of the placement slot 16 away from the opening is provided with a fixing slot 18. The inner wall of the placement slot 16 is fixedly connected to the pressure sensor 17. The inner wall of the placement slot 16 is limited to slide with the pressure plate 12. The side wall of the pressure plate 12 is fixedly connected to the telescopic spring 21. The end of the telescopic spring 21 away from the pressure plate 12 is fixedly connected to the inner wall of the fixing slot 18. The side wall of the pressure plate 12 is fixedly connected to the extrusion plate 22. The extrusion plate 22 is located directly below the pressure sensor 17.
[0029] It should be noted that during the cutting of the concrete expansion joints, after the base plate 3 comes into contact with the concrete, due to the weight of the entire device and the support of the concrete surface on the pressure plate 12, the pressure plate 12 will retract to the inside of the placement groove 16, eventually making the surface of the pressure plate 12 flush with the lower side wall of the base plate 3. During the movement of the pressure plate 12, the telescopic spring 21 is compressed, and the stability of the movement of the pressure plate 12 is ensured by the connection of the telescopic spring 21. When the pressure plate 12 is flush with the lower side wall of the base plate 3, the extrusion plate 22 will compress the pressure sensor 17. The pressure sensor 17 is connected to the water pump 10. When the water pump 10 is turned on, the water-based lubricant stored in the water tank 2 is transported to the interior of the diversion channel 23 through the connecting pipe 9. The lubricant is then evenly distributed into multiple one-way drainage holes 11 through the diversion channel 23 and finally discharged onto the surface of the substrate 3 and the concrete layer. The water-based lubricant forms a lubricating film between the operating substrate 3 and the concrete, reducing the direct contact area and the coefficient of friction, thereby improving the lubrication effect between the substrate 3 and the concrete, promoting better movement of the substrate 3, and improving the cutting efficiency of the dividing plate 13.
[0030] It should be noted that the specific model and specifications of the water pump need to be selected and determined based on the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail here.
[0031] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A concrete grid joint vibration cutter, comprising a base plate (3), a mounting seat (5) is arranged above the base plate (3), power boxes (6) and vibrators (7) are arranged on both sides of the mounting seat (5), a partition plate (13) is connected to the base plate (3), triangular plates (4) are arranged at both ends of the partition plate (13), characterized in that, The substrate (3) is connected with a pressure plate (12) and a pressure sensor (17), the pressure plate (12) is connected with a telescopic spring (21) and a pressing piece (22), both sides of the substrate (3) are provided with a water tank (2), the water tank (2) is connected with a connecting pipe (9) and a water pump (10).
2. A concrete form joint vibrator according to claim 1, wherein The mounting seat (5) is fixedly connected with the upper side wall of the substrate (3), the mounting seat (5) is rotatably connected with the telescopic rod (1), and the upper side wall of the substrate (3) is fixedly connected with the power supply box (6) and the vibrator (7) respectively.
3. A concrete form joint vibrator according to claim 1 wherein, The water tank (2) is located above the vibrator (7), the water tank (2) is fixedly connected with the supporting rod (8), one end of the supporting rod (8) is fixedly connected with the side wall of the substrate (3), the lower side wall of the water tank (2) is fixedly connected with the water pump (10), and one end of the connecting pipe (9) is fixedly connected with the water pump (10).
4. A concrete form joint vibrator according to claim 1 wherein, The inside of the substrate (3) is provided with a shunt groove (23), one side of the shunt groove (23) is fixedly connected with one end of the connecting pipe (9) away from the water pump (10), and a plurality of one-way drainage holes (11) in linear array are arranged between the inner wall of the shunt groove (23) and the lower side wall of the substrate (3).
5. A concrete form joint vibrator according to claim 1 wherein, The lower side wall of the substrate (3) is provided with a mounting groove (15), a limiting groove (14) is arranged in the inner wall of one end of the mounting groove (15), the mounting groove (15) is connected with the partition plate (13), the partition plate (13) is arranged in a "T" shape, the side wall of the partition plate (13) is fixedly connected with the limiting sliding plate (20), the limiting sliding plate (20) is slidably connected with the limiting groove (14), the both end side walls of the partition plate (13) are provided with the insertion slot (131), the insertion slot (131) is inserted with the limiting plug (41), one end of the limiting plug (41) is fixedly connected with the triangular plate (4), the triangular plate (4) is connected with the fixing bolt (19), and the triangular plate (4) is fixedly connected with the substrate (3) through the fixing bolt (19).
6. A concrete form joint vibrator according to claim 5 wherein, The lower side wall of the substrate (3) is provided with a placing groove (16), the placing groove (16) is provided with two, the two placing grooves (16) are located on the symmetrical two sides of the partition plate (13) respectively, and the inner wall of the placing groove (16) away from the opening is provided with a fixing groove (18).
7. A concrete form joint vibrator according to claim 6 wherein, The inner wall of the placing groove (16) and the pressure plate (12) are limited to slide, the side wall of the pressure plate (12) is fixedly connected with the telescopic spring (21), one end of the telescopic spring (21) away from the pressure plate (12) is fixedly connected with the inner wall of the fixing groove (18), the side wall of the pressure plate (12) is fixedly connected with the pressing piece (22), and the pressing piece (22) is located directly below the pressure sensor (17).