Ground grinding machine for concrete pavement

Abstract

The utility model belongs to the technical field of polishers, and provides a ground polisher for a concrete pavement, which comprises a support frame, a millstone component moving wheel arranged on the lower surface of the support frame, a motor, a millstone component connected to an output shaft of the motor, and a dust collecting device arranged on the support frame, the dust collecting device comprises a dust collecting box and an axial flow fan, the dust collecting box covers the other end of a connecting pipe in a housing on the outer side of the grinding disc assembly, the axial flow fan is located in the dust collecting box, the connecting pipe is connected with a pipeline assembly in the housing, an opening and closing door is arranged at the bottom end of the dust collecting box, and a driving structure for opening and closing the opening and closing door is connected to the opening and closing door. The efficiency of the pipeline assembly is higher than that of a traditional single dust suction pipe, and accumulation and volatilization of dust are reduced; the driving structure is connected to the opening and closing door to open and close the opening and closing door, dust directly leaks out of the opening and closing door after work is completed, and manual removal of the dust in the dust collection box is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of grinding machines, in particular to a floor grinding machine for concrete roads. Background Technique

[0002] At present, concrete roads are the most widely used roads. The damage of concrete roads caused by water immersion, snow corrosion after snowfall, freeze-thaw below zero, etc. will affect the use and beauty of the roads. At the same time, it may also cause potential safety hazards, and the repair and re-paving costs are high. The existing floor grinding machines are not completely clean the dust generated during grinding, causing the dust to spread and pollute the environment. Moreover, the collected dust still needs to be shoveled out manually, wasting time.

[0003] The utility model with the authorization announcement number CN218397328U discloses a floor grinding machine for decoration that can clean dust, including a frame assembly. A grinding disc assembly is fixedly installed at the bottom of the frame assembly. The grinding disc assembly includes a grinding disc box, and a grinding disc body is fixedly sleeved inside the grinding disc box. A dust collection assembly is fixedly installed at the top of the frame assembly. The dust collection assembly includes a negative pressure cylinder. A cover sleeve is fixedly installed at the top of the negative pressure cylinder. A vortex air pump is fixedly installed inside the cover sleeve. The air inlet and outlet of the vortex air pump penetrate through the cover sleeve. The top of the cover sleeve is fixedly connected with a cover top. The utility model, a floor grinding machine for decoration that can clean dust, when the floor is ground by the grinding disc assembly, the inside of the grinding disc assembly can be evacuated through the dust collection assembly, so as to achieve the dust collection effect, which is beneficial to timely clean the dust generated during the floor grinding process in the decoration operation, and avoid the dust spreading and affecting the decoration environment when the floor is ground by the floor grinding machine. However, the utility model still has the defects that the dust collection effect of the dust collection assembly is not good, there will be dust accumulation at other positions of the grinding disc assembly, and it is not convenient to discharge the collected dust after the grinding machine finishes working. Content of the Utility Model

[0004] Aiming at the deficiencies of the prior art, the utility model provides a floor grinding machine for concrete roads, which solves the problems put forward in the above background technique.

[0005] The technical solution of the utility model is as follows:

[0006] A floor grinding machine for concrete roads includes a support frame, moving wheels are arranged on the lower surface of the support frame, a motor, a grinding disc assembly connected to the output shaft of the motor, and a dust collection device arranged on the support frame. The dust collection device includes a dust collection box at the other end of a connecting pipe inside a cover shell covering the outside of the grinding disc assembly and an axial flow fan located inside the dust collection box. The connecting pipe is connected to a pipeline assembly inside the cover shell. An opening and closing door is arranged at the bottom end of the dust collection box, and a driving structure for opening and closing it is connected to the opening and closing door.

[0007] Further, the pipeline assembly includes an annular dust suction pipe, a first connecting pipe and a second connecting pipe. The connecting pipe is inserted and connected to the upper surface of the dust suction pipe to communicate with it, and the lower end of the dust suction pipe is provided with a first connecting pipe and a second connecting pipe that communicate with it.

[0008] Further, the first connecting pipe and the second connecting pipe are arranged in a cross-symmetric manner, and the length of the first connecting pipe is longer than that of the second connecting pipe.

[0009] Further, the driving structure includes an electric telescopic rod, a first connecting rod and a second connecting rod fixed on the side wall of the dust collection box. The end of the electric telescopic rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is hinged to one end of the first connecting rod.

[0010] Further, a support block is fixedly connected to the bottom end of one side of the dust collection box close to the motor. A rotating rod is rotatably connected to the support block, and a connecting block fixed on the end of the opening and closing door is fixedly connected to the rotating rod.

[0011] Further, the other end of the first connecting rod is fixedly connected to the extended end of the rotating rod.

[0012] Compared with the prior art, the beneficial effects of the technical solution provided by the present utility model are as follows: The provided pipeline assembly has higher efficiency than the traditional single dust suction pipe, reducing the accumulation and dispersion of dust; By connecting a driving structure to the opening and closing door for its opening and closing, after the work is completed, the dust directly leaks out from the opening and closing door, avoiding manual shoveling of the dust in the dust collection box. Description of the Drawings

[0013] The specification drawings forming a part of this application are used to provide a further understanding of this application. The schematic embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation to this application. Among them:

[0014] Figure 1 is a schematic structural diagram of the surface grinding machine for concrete pavement of the present utility model;

[0015] Figure 2 is a cross-sectional view of the surface grinding machine for concrete pavement of the present utility model;

[0016] Figure 3 is a schematic structural diagram of the dust collection box;

[0017] Figure 4 is a schematic structural diagram of the dust suction pipe;

[0018] In the figure: 1, support frame; 2, dust collection box; 201, opening and closing door; 202, connecting block; 203, extension plate; 3, housing; 4, connecting pipe; 5, electric motor; 6, motor; 7, air outlet; 8, electric telescopic rod; 9, first connecting rod; 91, second connecting rod; 10, moving wheel; 11, axial flow fan; 12, filter screen; 13, dust suction pipe; 1301, first connecting pipe; 1302, second connecting pipe; 14, grinding disc assembly; 15, support block; 16, rotating rod. Detailed implementation manners

[0019] The present application will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments. Each example is provided by way of explanation of the present application rather than a limitation of the present application. In fact, those skilled in the art will clearly understand that modifications and variations can be made to the present application without departing from the scope or spirit of the present application. For example, features shown or described as part of one embodiment can be used in another embodiment to yield yet another embodiment. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the embodiments of the present invention shall fall within the scope of protection of the embodiments of the present invention.

[0020] Embodiment

[0021] Please refer to Figures 1 to 4 , a floor grinder for concrete pavement, comprising a support frame 1, moving wheels 10 arranged on the lower surface of the support frame 1, a motor 6, a grinding disc assembly 14 connected to the output shaft of the motor 6, and a dust collection device arranged on the support frame 1. The dust collection device includes a housing 3 covering the outside of the grinding disc assembly 14, one end of a connecting pipe 4 inserted into the housing 3, a dust collection box 2 connected to the other end of the connecting pipe 4, and an axial flow fan 11 located in the dust collection box 2. The connecting pipe 4 is connected to a pipe assembly inside the housing 3. An opening and closing door 201 is arranged at the bottom end of the dust collection box 2, and a driving structure for opening and closing the opening and closing door 201 is connected thereto.

[0022] Specifically, the support frame 1 at the bottom end is of a U-shaped structure, and the opening position faces left (taking Figure 1As shown in the figure, it is welded by three L-shaped angle steels. On both sides near one end of the opening, guard plates are welded, and a partition layer with an armrest extending from the guard plate is provided. A rubber layer is bonded to the end of the armrest; on both sides of the bottom end of the dust collection box 2, extension plates 203 are welded. The width of the extension plates 203 extending out is the same as the width of the horizontal end face of the L-shaped angle steel. Holes are drilled in the extension plates 203 and fixed to the L-shaped angle steel through bolts. The dust collection box 2 is fixed at a position near the opening; a support plate is provided at a position far from the opening. The support plate is connected to the L-shaped angle steel through bolts. The motor 6 is fixed in the middle of the support plate. The output shaft of the motor 6 passes through the support plate and is connected to the grinding disc assembly 14. The bottom end of the grinding disc assembly 14 is in contact with the ground. The distance between the bottom end of the housing 3 and the ground is small to ensure that dust does not leak as much as possible. The housing 3 is a cylindrical structure and is fixed to the bottom end of the support plate; the dust collection box 2 is a cylindrical structure, and a snap-on cover plate is provided at the upper end. The electric motor 5 of the axial flow fan 11 is fixed on the cover plate. A filter net 12 fixed to the cover plate is sleeved outside the axial flow fan 11. An air outlet 7 is provided on the cover plate; an opening and closing door 201 is provided at the lower end of the dust collection box 2. The width of the opening and closing door 201 is the same as the distance between the outer side surface of the dust collection box 2. A sealing ring is bonded to the periphery of the bottom end of the dust collection box 2, which can make the dust collection box 2 achieve a good sealing effect and avoid dust leakage. By connecting a driving structure to the opening and closing door 201 for opening and closing, after the work is completed, the dust directly leaks out from the opening and closing door 201 or a plastic cloth is laid at the lower end of the opening and closing door 201 to collect the dust, avoiding manually shoveling the dust in the dust collection box 2 and saving time; the connecting rod provided on the pipeline assembly is connected to the bottom end of the support plate.

[0023] As Figure 4 shown, the pipeline assembly includes an annular dust suction pipe 13, a first connecting pipe 1301 and a second connecting pipe 1302. The connecting pipe 4 is inserted into the upper surface of the dust suction pipe 13 and communicated with it. The lower end of the dust suction pipe 13 is provided with a first connecting pipe 1301 and a second connecting pipe 1302 communicated with it.

[0024] As Figure 4 shown, the first connecting pipe 1301 and the second connecting pipe 1302 are arranged in a cross-symmetric manner, and the length of the first connecting pipe 1301 is longer than the length of the second connecting pipe 1302.

[0025] Specifically, the dust suction pipe 13 is of a ring structure and hollow inside. The first connecting pipe 1301 and the second connecting pipe 1302 are welded to the dust suction pipe 13. The connecting pipe 4 is welded to the upper surface of the dust suction pipe 13. The connecting pipe 4 is communicated with the left first connecting pipe 1301 and is on the same vertical horizontal line. The end of the first connecting pipe 1301 is flush with the bottom end of the housing 3. The first connecting pipe 1301 is used to suck the dust on the ground. The length of the second connecting pipe 1302 is half of that of the first connecting pipe 1301 and is used to suck the dust floating in the air, preventing the dust from falling onto the grinding disc assembly 14 and avoiding the accumulation of dust which is difficult to clean. By combining pipes of different lengths, the dust in the housing 3 is sucked clean to the greatest extent, maximizing the protection of the physical health of the construction workers.

[0026] As Figure 1 and Figure 3 shown, the driving structure includes an electric telescopic rod 8, a first connecting rod 9 and a second connecting rod 91 fixed to the side wall of the dust collection box 2. The end of the electric telescopic rod 8 is rotatably connected to one end of the second connecting rod 91. The other end of the second connecting rod 91 is hinged to one end of the first connecting rod 9. A support block 15 is fixedly connected to the bottom end of the side surface of the dust collection box 2 close to the motor 6. A rotating rod 16 is rotatably connected to the support block 15. A connecting block 202 fixed to the end of the opening and closing door 201 is fixedly connected to the rotating rod 16. The other end of the first connecting rod 9 is fixedly connected to the extended end of the rotating rod 16.

[0027] Specifically, when the extending end of the electric telescopic rod 8 extends, it exceeds the edge of the dust collection box 2. A connecting ball is arranged at the extending end. A through hole is arranged in the connecting ball. A connecting shaft is arranged in the through hole. The connecting shaft extends out of the through hole and is rotatably connected to one end of the second connecting rod 91. The first connecting rod 9 and the second connecting rod 91 are connected by a hinge shaft. The support block 15 is of a semi-elliptical structure and a through insertion hole is formed in the side surface for the rotating rod 16 to be inserted. One end of the rotating rod 16 is flush with the side surface of the dust collection box 2, and the other end extends a certain distance and just touches the side surface of the first connecting rod 9 and is welded together. When the electric telescopic rod 8 is started, the extending end moves to the right, the first connecting rod 9 and the second connecting rod 91 are hinged and rotated, the rotating rod 16 rotates, and the connecting block 202 drives the opening and closing door 201 to rotate to close it. When the extending end moves to the left, the opening and closing door 201 opens.

[0028] In specific implementation of the present utility model, the power supply module is a municipal direct plug-in power supply, and the control module is a control remote controller. The control remote controller is arranged at the armrest position and is electrically connected to the electric telescopic rod 8, the electric motor 5, and the motor 6. The electric telescopic rod 8, the electric motor 5, and the motor 6 are connected to the municipal power supply. The control remote controller is configured with buttons for controlling the start and stop of the electric telescopic rod 8, the electric motor 5, and the motor 6. The connection method and working principle of the power supply module, the control module, and the electric telescopic rod 8, the electric motor 5, and the motor 6 are all prior arts and will not be elaborated here.

[0029] The working process of a floor grinding machine for concrete pavement provided by the present utility model is as follows:

[0030] Before construction: Manually clean the concrete surface layer, and remove large concrete, surface adhesives, and loose concrete particles.

[0031] During construction: Click the start buttons of the electric motor 5 and the motor 6, and the grinding disc assembly 14 rotates to grind the ground, and the axial flow fan 11 rotates to extract the dust in the housing 3.

[0032] After construction is completed: Click the stop buttons of the electric motor 5 and the motor 6, lay a plastic sheet at the bottom of the dust collection box 2, start the electric telescopic rod 8, and the dust falls on the plastic sheet for collection.

[0033] It should be noted that the device structure and drawings of the present utility model mainly describe the principle of the present utility model. In terms of the technical principle of this design, the settings of the power mechanism, power supply system, and control system of the device are not fully described clearly. On the premise that those skilled in the art understand the principle of the above-mentioned utility model, the specific details of its power mechanism, power supply system, and control system can be clearly known. The control method of the application document is automatically controlled by a controller, and the control circuit of the controller can be realized by simple programming of those skilled in the art.

[0034] The standard parts used therein can all be purchased from the market, and can also be customized according to the records of the specification and drawings. The specific connection methods of each part all adopt conventional means such as mature bolts, rivets, and welding in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art, and for the components known to those skilled in the art, their structures and principles can all be known by those skilled in the art through technical manuals or by conventional experimental methods.

[0035] Although embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model, or they can be directly or indirectly applied. In other related technical fields, the scope of the present utility model is defined by the appended claims and their equivalents, and all are similarly included within the scope of the patent protection of the present utility model.

Claims

1. A floor grinder for concrete pavement, comprising a support frame, a moving wheel disposed on the lower surface of the support frame, a motor, a grinding disc assembly connected to the output shaft of the motor, and a dust collecting device disposed on the support frame, characterized in that: The dust collecting device comprises a cover shell arranged outside the grinding disc assembly, a connecting pipe with one end inserted in the cover shell, a dust collecting box connected to the other end of the connecting pipe, and an axial flow fan located in the dust collecting box, wherein the connecting pipe is connected to the pipeline assembly in the cover shell, and an opening and closing door is arranged at the bottom end of the dust collecting box, and a driving structure for opening and closing the opening and closing door is connected to the opening and closing door; The driving structure comprises an electric telescopic rod fixed to the side wall of the dust box, a first connecting rod and a second connecting rod, the end of the electric telescopic rod is rotatably connected to one end of the second connecting rod, and the other end of the second connecting rod is hinged to one end of the first connecting rod; The bottom end of one side of the dust box close to the motor is fixedly connected to a support block, the support block is rotatably connected to a rotating rod, and the rotating rod is fixedly connected to a connecting block fixed to the end of the opening and closing door; The other end of the first connecting rod is fixedly connected to the extended end of the rotating rod.

2. The floor grinding machine for concrete pavement according to claim 1, characterized in that: The pipe assembly includes an annular dust suction pipe, a first connecting pipe and a second connecting pipe. The connecting pipe is plugged into the upper surface of the dust suction pipe and communicates with it. The lower end of the dust suction pipe is provided with the first connecting pipe and the second connecting pipe that communicate with it.

3. The floor grinding machine for concrete pavement according to claim 2, characterized in that: The first connecting pipe and the second connecting pipe are arranged crosswise and symmetrically, and the length of the first connecting pipe is longer than that of the second connecting pipe.

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