CN112828703B

CN112828703B - Epoxy terrace mill

Info

Publication number: CN112828703B
Application number: CN202110020588.7A
Authority: CN
Inventors: 蔡伟
Original assignee: Individual
Current assignee: Li Jianxun
Priority date: 2021-01-07
Filing date: 2021-01-07
Publication date: 2021-12-10
Anticipated expiration: 2041-01-07
Also published as: CN112828703A

Abstract

The invention belongs to the technical field of floor polishing equipment, and particularly relates to an epoxy floor millstone which comprises a base plate and an upper plate; the top of the upper disc is fixedly connected with a spline shaft, a group of clamping grooves are uniformly distributed on the circumference of the bottom of the upper disc, and a first magnet is fixedly connected in each clamping groove; an annular groove is formed in the top of the chassis and corresponds to the clamping groove, a clamping rod is hinged to the annular groove and corresponds to the first magnet, and the clamping rod is matched with the clamping groove; a group of first grinding heads are uniformly distributed on the circumference of the bottom of the chassis; according to the invention, the clamping rod is hinged in the ring groove, so that the clamping rod retracts into the ring groove when the chassis is horizontally placed, then the chassis is moved to be aligned with the upper disc, and then the upper disc is rotated through the grinding machine, so that the first magnet can attract the clamping rod to rotate and then be clamped into the clamping groove, and further the installation of the chassis is rapidly completed.

Description

Epoxy terrace mill

Technical Field

The invention belongs to the technical field of floor polishing equipment, and particularly relates to an epoxy floor grinding disc.

Background

Epoxy terrace is a high strength, stand wear and tear, pleasing to the eye floor, has advantages such as seamless, the texture is solid, resistant medicine nature is good, anticorrosive, dustproof, maintenance is convenient, maintenance cost is cheap, and epoxy terrace can require the design multiple scheme according to the usage of difference, and epoxy terrace roughly can divide into: epoxy resin terrazzo terrace, epoxy resin color sand-pressed terrace, epoxy resin self-leveling terrace, epoxy resin mortar type terrace, epoxy resin flat coating type terrace.

Some technical schemes related to floor polishing equipment also appear in the prior art, for example, a Chinese patent with application number 2018107810135 discloses an epoxy floor polishing disc, which comprises a disc main body, a mounting rod, a polishing head, a polishing disc, a polishing head, a limiting rod, a spring, a polishing seat and a limiting ring, wherein the mounting rod is arranged on the upper end surface of the disc main body, the polishing head is assembled on the lower end surface of the disc main body, the polishing head is installed on the lower end surface of the polishing disc, the polishing disc is installed on the lower side inside the polishing seat, the polishing seat is installed in the middle inside the disc main body, the spring is arranged inside the polishing seat, the limiting rod is arranged on the upper end surface of the polishing disc, the spring is sleeved on the annular side surface of the limiting rod, the limiting ring is installed on the upper side surface of the limiting rod, and the limiting ring is arranged on the upper side of the polishing seat, the design solves the problem that the original epoxy floor polishing disc has poor protection effect, and the invention has reasonable structure, the buffer device is convenient to assemble and install, good in buffer protection effect and long in service life.

However, in the prior art, the grinding disc is inserted into the positioning hole after being aligned with the positioning hole on the turntable of the grinding machine through the clamping column, and then the positioning hole is matched with the clamping column to transmit the torque of the grinding machine.

Therefore, the invention provides the epoxy floor grinding disc.

Disclosure of Invention

In order to make up for the defects of the prior art and solve the problems that the grinding machine in the prior art is relatively heavy, so that the grinding disc is difficult to disassemble and assemble, the angle of the grinding disc needs to be adjusted, the clamping columns and the positioning holes are completely aligned, the grinding machine is limited by the rotation angle and the weight of the grinding machine, the grinding disc can be replaced only by consuming relatively long time and relatively high labor intensity, and the continuous working efficiency of the grinding machine is influenced, the invention provides the epoxy floor grinding disc.

The technical scheme adopted by the invention for solving the technical problems is as follows: the invention relates to an epoxy terrace millstone, which comprises a chassis and an upper plate; the top of the upper disc is fixedly connected with a spline shaft, a group of clamping grooves are uniformly distributed on the circumference of the bottom of the upper disc, and a first magnet is fixedly connected in each clamping groove; an annular groove is formed in the top of the chassis and corresponds to the clamping groove, a clamping rod is hinged to the annular groove and corresponds to the first magnet, and the clamping rod is matched with the clamping groove; a group of first grinding heads are uniformly distributed on the circumference of the bottom of the chassis; when the grinding machine works, the grinding disc is aligned with the positioning hole in the rotary disc of the grinding machine through the clamping column and then inserted into the positioning hole, and then the torque of the grinding machine is transmitted through the positioning hole and the clamping column in a matching way, but the grinding machine in the prior art is relatively heavy, so that the grinding disc is difficult to disassemble and assemble, and meanwhile, the angle of the grinding disc needs to be adjusted, so that the clamping column is completely aligned with the positioning hole, the grinding machine is limited by the rotation angle and the weight of the grinding machine, the grinding disc can be replaced only by consuming relatively long time and relatively high labor intensity, and the continuous working efficiency of the grinding machine is influenced; at the moment, the clamping rod is hinged in the ring groove, so that the clamping rod retracts into the ring groove when the base plate is horizontally placed, then the base plate is moved to be aligned with the upper plate, and then the upper plate is rotated through the grinding machine, so that the first magnet can attract the clamping rod to rotate and then be clamped into the clamping groove, and further the base plate is quickly installed.

Preferably, the top of the clamping rod is fixedly connected with a clamping plate, and one end of the clamping plate is provided with a sharp corner; a T-shaped groove is formed in the first magnet, and a sliding groove is formed in the surface of the upper disc on one side of the T-shaped groove; when the upper disc rotates, the clamping plate is attracted by the first magnet and enters the sliding groove, and then the clamping plate is clamped into the T-shaped groove, so that the connection stability between the chassis and the upper disc is improved, and the chassis is prevented from falling off accidentally.

Preferably, a cavity is formed in the chassis corresponding to the first grinding head, and the first grinding head penetrates through the chassis and extends into the cavity; one end of the first grinding head, which is positioned in the cavity, is fixedly connected with a base, and a pressure spring is arranged between the base and the bottom of the cavity; the middle part of the clamping rod is hinged with the side wall of the annular groove through a rotating shaft, and the bottom end of the clamping rod props against the top of the base; the base and the first grinding head are pushed to contract towards the inside of the cavity through the pressure spring of the chassis in the transportation process, collision damage to the first grinding head in the transportation process is reduced, the base is extruded downwards when the clamping rod rotates and the clamping groove is clamped in the base during use, the first grinding head can be ejected out quickly, and the working efficiency of the first grinding head is increased.

Preferably, a group of second grinding heads are uniformly distributed on the circumference of one side of the first grinding head close to the center of the chassis, penetrate through the chassis and extend into the cavity; the second grinding head chassis is in clearance fit, and the second grinding head is fixedly connected with the base; the center of the bottom of the base is hinged with a rotating pin through a support, a vertically arranged sliding groove is formed in the cavity corresponding to the rotating pin, and the rotating pin is embedded into the sliding groove and is in sliding connection with the sliding groove; a spring is fixedly connected between the rotating pin and the bottom of the sliding groove; through changeing round pin cooperation base for the wearing and tearing volume that a bistrique and No. two bistriques arouse because the linear velocity is different, revolves the round pin through the bottom plate and rotates, and the level of a automatically regulated bistrique and No. two bistriques, and then makes the chassis bottom guarantee level, increases the grinding flat quality of terrace.

Preferably, the adjacent first grinding head and the adjacent second grinding head are arranged in a splayed manner, one ends, close to each other, of the first grinding head and the second grinding head are fixedly connected with inclined scraping plates, the bottom ends of the scraping plates are inclined towards the direction of one ends, far away from each other, of the first grinding head and the second grinding head, and the tops of the scraping plates are fixedly connected with filter screens; grinding head and the scraper blade of No. two bistriques cooperation slopes that arrange through the splayed for the residue that the terrace grinding formed scrapes 3 and collects through the scraper blade, later filters through the filter screen, and then reduces the impurity between grinding head and the terrace, when the impurity of avoiding the grinding production participated in the grinding once more, the fish tail that causes the terrace.

Preferably, the filter screen is obliquely arranged, and the top of the filter screen is inclined towards the direction far away from the center of the chassis; the filter screen is wave-shaped and extends towards the periphery of the chassis step by step; the middle part of the chassis is provided with a central hole, and the top of the filter screen is communicated with the central hole through an inclined hole; through the wavy arrangement of filter screen cooperation of slope for the muddy water that the scraper blade was scraped passes through filter screen multi-stage filtration, further increases the filter effect of residue, reduces the filter screen jam, and water after the filtration flows back into the centre bore through the inclined hole, and then continues to flow into near the bistrique, cools down the chassis, increases the flat effect of grinding of bistrique.

Preferably, the top of the filter screen is fixedly connected with a second magnet, a group of third magnets are uniformly distributed on the bottom of the upper disc at the position corresponding to the second magnet on the circumference, and the magnetic poles of the adjacent sides of the third magnets and the second magnets are the same; a conical elastic bag is fixedly connected to a concave part on the inner side of the filter screen, and a pull rope fixedly connected to the tip end of the elastic bag penetrates through the filter screen and extends to the outer side of the filter screen; the pull rope is connected with the filter screen in a sliding way; one end of the pull rope, which is positioned outside the filter screen, is fixedly connected with a small ball; the concave part outside the filter screen is fixedly connected with an elastic air bag which is communicated with the elastic bag through an air pipe; through the repulsion of No. three magnet to No. two magnets for No. two magnets are in the suspended state under the elastic support of filter screen, and then make the chassis drive No. two magnet continuous shake from top to bottom at the vibration that the rotation in-process caused, and then make the gasbag inflate the elasticity bag, and cooperation stay cord and bobble make the elasticity bag constantly flexible, further increase the cleaning efficiency of adhesion impurity on the filter screen.

Preferably, the pull rope is uniformly and fixedly connected with a group of conical snap rings, and the tips of the snap rings face to one side of the pull rope close to the elastic bag; the pull rope is in clearance fit with the filter screen, and the clear cutting filter screen has elasticity; vibration when drawing elastic filter screen through the snap ring increases and makes the elasticity bag variable speed shrink and extension, further increases the shake of elasticity bag, increases the cleaning efficiency of adhesion impurity on the filter screen.

The invention has the following beneficial effects:

1. according to the epoxy floor grinding disc, the clamping rod is hinged in the annular groove, so that the clamping rod is retracted into the annular groove when the base disc is horizontally placed, then the base disc is moved to be aligned with the upper disc, then the upper disc is rotated through the grinding machine, and a first magnet can attract the clamping rod to rotate and then be clamped into the clamping groove, so that the base disc is rapidly installed.

2. According to the epoxy floor grinding disc, the first grinding head and the second grinding head which are arranged in the splayed shape are matched with the inclined scraper plate, so that residues formed by floor grinding are scraped by the scraper plate 3 and collected, and then are filtered by the filter screen, so that impurities between the first grinding head and the floor are reduced, and the floor is prevented from being scratched when the impurities generated by grinding participate in grinding again.

Drawings

The invention will be further explained with reference to the drawings.

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a half-sectional view of the present invention;

FIG. 3 is a perspective view of the base pan of the present invention;

FIG. 4 is a bottom view of the upper tray of the present invention;

FIG. 5 is an enlarged view of a portion of FIG. 2 at A;

FIG. 6 is an enlarged view of a portion of FIG. 2 at B;

in the figure: chassis 1, upper plate 2, spline shaft 21, clamping groove 22, magnet 23, annular groove 11, clamping rod 12, grinding head 13, clamping plate 14, sharp corner 15, T-shaped groove 24, slide-in groove 25, cavity 16, base 17, pressure spring 18, grinding head 19, rotating pin 3, sliding groove 31, scraper 32, filter screen 33, central hole 34, inclined hole 35, magnet 36, magnet 37, elastic bag 4, pull rope 41, pellet 42, air bag 43 and clamping ring 44.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

As shown in fig. 1 to 6, the epoxy terrace grinding disc of the present invention comprises a bottom disc 1 and an upper disc 2; the top of the upper disc 2 is fixedly connected with a spline shaft 21, a group of clamping grooves 22 are uniformly distributed on the circumference of the bottom of the upper disc 2, and a first magnet 23 is fixedly connected in each clamping groove 22; the top of the chassis 1 is provided with a ring groove 11 corresponding to the clamping groove 22, a clamping rod 12 is hinged to the ring groove 11 corresponding to the first magnet 23, and the clamping rod 12 is matched with the clamping groove 22; a group of first grinding heads 13 are uniformly distributed on the circumference of the bottom of the chassis 1; when the grinding machine works, a grinding disc in the prior art is aligned with a positioning hole in a rotary disc of the grinding machine through a clamping column and then inserted into the positioning hole, and then the torque of the grinding machine is transmitted through the positioning hole in a matching way with the clamping column; at the moment, the clamping rod 12 is hinged in the annular groove 11, so that the clamping rod 12 is retracted into the annular groove 11 when the chassis 1 is horizontally placed, then the chassis 1 is moved to be aligned with the upper disc 2, then the upper disc 2 is rotated through the grinding machine, and the first magnet 23 can attract the clamping rod 12 to rotate and then is clamped into the clamping groove 22, so that the chassis 1 is rapidly installed.

As an embodiment of the invention, the top of the clamping rod 12 is fixedly connected with a clamping plate 14, and one end of the clamping plate 14 is provided with a sharp corner 15; a T-shaped groove 24 is formed in the first magnet 23, and a sliding groove 25 is formed in the surface of the upper disc 2 on one side of the T-shaped groove 24; when the upper disc 2 rotates, the clamping plate 14 is attracted by the first magnet 23 and enters the sliding groove 25, and then is clamped in the T-shaped groove 24, so that the connection stability between the chassis 1 and the upper disc 2 is improved, and the chassis 1 is prevented from falling off accidentally.

As an embodiment of the invention, a cavity 16 is formed in the chassis 1 at a position corresponding to the first grinding head 13, and the first grinding head 13 penetrates through the chassis 1 and extends into the cavity 16; one end of the first grinding head 13, which is positioned in the cavity 16, is fixedly connected with a base 17, and a pressure spring 18 is arranged between the base 17 and the bottom of the cavity 16; the middle part of the clamping rod 12 is hinged with the side wall of the annular groove 11 through a rotating shaft, and the bottom end of the clamping rod 12 props against the top of the base 17; the base 17 and the first grinding head 13 are pushed to contract towards the inside of the cavity 16 through the pressure spring 18 of the chassis 1 in the transportation process, collision damage to the first grinding head 13 in the transportation process is reduced, the base 17 is extruded downwards when the clamping rod 12 rotates and is clamped into the clamping groove 22 in the use process, the first grinding head 13 can be ejected out fast, and the working efficiency of the first grinding head 13 is improved.

As an embodiment of the invention, a group of second grinding heads 19 are uniformly distributed on the circumference of one side of the first grinding head 13 close to the center of the chassis 1, and the second grinding heads 19 penetrate through the chassis 1 and extend into the cavity 16; the second grinding head 19 is in clearance fit with the chassis 1, and the second grinding head 19 is fixedly connected with the base 17; the center of the bottom of the base 17 is hinged with a rotating pin 3 through a support, a sliding groove 31 which is vertically arranged is formed in the cavity 16 and corresponds to the rotating pin 3, and the rotating pin 3 is embedded into the sliding groove 31 and is in sliding connection with the sliding groove 31; a spring is fixedly connected between the rotating pin 3 and the bottom of the sliding groove 31; through commentaries on classics round pin 3 cooperation base 17 for No. one bistrique 13 is different with No. two bistriques 19 because the different wearing and tearing volume that arouses of linear velocity, rotates around commentaries on classics round pin 3 through the bottom plate, and the level of automatically regulated bistrique 13 and No. two bistriques 19, and then makes chassis 1 bottom guarantee to level, increases the grinding flat quality of terrace.

As an embodiment of the invention, the adjacent first grinding head 13 and second grinding head 19 are arranged in a splayed manner, one end of the first grinding head 13, which is close to the second grinding head 19, is fixedly connected with an inclined scraper 32, the bottom end of the scraper 32 is inclined towards the direction of one end of the first grinding head 13, which is far from the second grinding head 19, and the top of the scraper 32 is fixedly connected with a filter screen 33; grinding head 13 and No. two grinding heads 19 that arrange through the splayed cooperate the scraper blade 32 of slope for the residue that the terrace grinding formed is scraped and is collected through scraper blade 32, later filters through filter screen 33, and then reduces the impurity between grinding head 13 and the terrace, when the impurity of avoiding the grinding production participated in the grinding once more, the fish tail that causes the terrace.

As an embodiment of the present invention, the strainer 33 is arranged obliquely, and the top of the strainer 33 is inclined in a direction away from the center of the chassis 1; the filter screen 33 extends towards the periphery of the chassis 1 in a wave shape step by step; the middle part of the chassis 1 is provided with a central hole 34, and the top of the filter screen 33 is communicated with the central hole 34 through an inclined hole 35; through the arrangement of the inclined filter screen 33 in a matched mode with the waves, muddy water scraped by the scraper 32 is filtered through the filter screen 33 in multiple stages, the filtering effect of residues is further improved, the blockage of the filter screen 33 is reduced, water after filtering flows back into the central hole 34 through the inclined hole 35 and then continuously flows into the position near the first grinding head 13, the chassis 1 is cooled, and the grinding effect of the first grinding head 13 is improved.

As an embodiment of the invention, the top of the filter screen 33 is fixedly connected with a second magnet 36, a group of third magnets 37 are uniformly distributed on the bottom of the upper disc 2 at the circumference of the position corresponding to the second magnet 36, and the magnetic poles of the adjacent sides of the third magnets 37 and the second magnet 36 are the same; a conical elastic bag 4 is fixedly connected to a concave position on the inner side of the filter screen 33, and a pull rope 41 fixedly connected to the tip end of the elastic bag 4 penetrates through the filter screen 33 and extends to the outer side of the filter screen 33; the pull rope 41 is connected with the filter screen 33 in a sliding way; one end of the pull rope 41 positioned outside the filter screen 33 is fixedly connected with a small ball 42; the concave part at the outer side of the filter screen 33 is fixedly connected with an elastic air bag 43, and the air bag 43 is communicated with the elastic bag 4 through an air pipe; through the repulsion of No. three magnet 37 to No. two magnet 36 for No. two magnet 36 is in the suspended state under the elastic support of filter screen 33, and then makes chassis 1 shake about the vibration drive No. two magnet 36 that the rotation in-process caused, and then makes gasbag 43 drum gas to elastic bag 4, and cooperation stay cord 41 and pellet 42 make elastic bag 4 constantly flexible, further increases the cleaning efficiency of adhesion impurity on the filter screen 33.

As an embodiment of the present invention, a group of conical clasps 44 is uniformly attached to the pulling rope 41, and the tip of the clasps 44 faces to one side of the pulling rope 41 close to the elastic bag 4; the pull rope 41 is in clearance fit with the filter screen 33, and the filter screen 33 has elasticity; vibration caused by the snap ring 44 sliding across the elastic filter net 33 increases the speed-changing contraction and extension of the elastic bag 4, further increases the shaking of the elastic bag 4, and increases the cleaning efficiency of the impurities adhered to the filter net 33.

When the chassis is in operation, the clamping rod 12 is hinged in the annular groove 11, when the chassis 1 is horizontally placed, the clamping rod 12 is retracted into the annular groove 11, then the chassis 1 is moved to be aligned with the upper disc 2, then the upper disc 2 is rotated through the grinding machine, and the first magnet 23 can attract the clamping rod 12 to rotate and then is clamped into the clamping groove 22, so that the installation 5 of the chassis 1 is rapidly completed; when the upper disc 2 rotates, the clamping plate 14 is attracted by the first magnet 23 and enters the sliding groove 25, and then is clamped into the T-shaped groove 24, so that the connection stability between the chassis 1 and the upper disc 2 is improved, and the chassis 1 is prevented from falling off accidentally; the base 17 and the first grinding head 13 are pushed to contract towards the inside of the cavity 16 by the pressure spring 18 of the chassis 1 in the transportation process, collision damage to the first grinding head 13 in the transportation process is reduced, when the first grinding head is used, the clamping rod 12 rotates and is clamped into the clamping groove 22, the base 17 is extruded downwards, the first grinding head 13 can be ejected out quickly, and the working efficiency of the first grinding head 13 is improved; the rotating pin 3 is matched with the base 17, so that when the abrasion loss of the first grinding head 13 and the second grinding head 19 is different due to different linear speeds, the first grinding head 13 and the second grinding head 19 automatically adjust the level through the rotation of the base plate around the rotating pin 3, the bottom of the chassis 1 is enabled to be smooth, and the grinding quality of the terrace is improved; through the splayed first grinding head 13 and the splayed second grinding head 19 matched with the inclined scraper 32, residues formed by floor grinding are scraped and collected by the scraper 32 and then filtered by the filter screen 33, so that impurities between the first grinding head 13 and the floor are reduced, and the floor is prevented from being scratched when the impurities generated by grinding participate in grinding again; the inclined filter screen 33 is matched with the wave-shaped arrangement, so that muddy water scraped by the scraper 32 is filtered through the filter screen 33 in multiple stages, the filtering effect of residues is further increased, the blockage of the filter screen 33 is reduced, the filtered water flows back into the central hole 34 through the inclined hole 35 and further continuously flows into the vicinity of the first grinding head 13, the chassis 1 is cooled, and the grinding effect of the first grinding head 13 is increased; through repulsion of the third magnet 37 to the second magnet 36, the second magnet 36 is in a suspension state under elastic support of the filter screen 33, so that vibration caused by the chassis 1 in the rotating process drives the second magnet 36 to shake up and down continuously, the air bag 43 inflates the elastic bag 4, the elastic bag 4 stretches continuously by matching with the pull rope 41 and the small ball 42, and the cleaning efficiency of impurities adhered to the filter screen 33 is further improved; vibration caused by the snap ring 44 sliding across the elastic filter net 33 increases the speed-changing contraction and extension of the elastic bag 4, further increases the shaking of the elastic bag 4, and increases the cleaning efficiency of the impurities adhered to the filter net 33.

The front, the back, the left, the right, the upper and the lower are all based on figure 1 in the attached drawings of the specification, according to the standard of the observation angle of a person, the side of the device facing an observer is defined as the front, the left side of the observer is defined as the left, and the like.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the scope of the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides an epoxy terrace mill which characterized in that: comprises a chassis (1) and an upper disc (2); the top of the upper disc (2) is fixedly connected with a spline shaft (21), a group of clamping grooves (22) are uniformly distributed on the circumference of the bottom of the upper disc (2), and a first magnet (23) is fixedly connected in each clamping groove (22); the top of the chassis (1) is provided with a ring groove (11) at a position corresponding to the clamping groove (22), a clamping rod (12) is hinged in the ring groove (11) at a position corresponding to the first magnet (23), and the clamping rod (12) is matched with the clamping groove (22); a group of first grinding heads (13) are uniformly distributed on the circumference of the bottom of the chassis (1);

the top of the clamping rod (12) is fixedly connected with a clamping plate (14), and one end of the clamping plate (14) is provided with a sharp corner (15); a T-shaped groove (24) is formed in the first magnet (23), and a sliding groove (25) is formed in the surface of the upper disc (2) on one side of the T-shaped groove (24).

2. The epoxy floor grinding disc of claim 1, characterized in that: a cavity (16) is formed in the chassis (1) at a position corresponding to the first grinding head (13), and the first grinding head (13) penetrates through the chassis (1) and extends into the cavity (16); one end of the first grinding head (13) positioned in the cavity (16) is fixedly connected with a base (17), and a pressure spring (18) is arranged between the base (17) and the bottom of the cavity (16); the middle part of the clamping rod (12) is hinged with the side wall of the ring groove (11) through a rotating shaft, and the bottom end of the clamping rod (12) is propped against the top of the base (17).

3. The epoxy floor grinding disc of claim 2, characterized in that: a group of second grinding heads (19) are uniformly distributed on the circumference of one side of the first grinding head (13) close to the center of the chassis (1), and the second grinding heads (19) penetrate through the chassis (1) and extend into the cavity (16); the second grinding head (19) is in clearance fit with the chassis (1), and the second grinding head (19) is fixedly connected with the base (17); the center of the bottom of the base (17) is hinged with a rotating pin (3) through a support, a vertically-arranged sliding groove (31) is formed in the cavity (16) at a position corresponding to the rotating pin (3), and the rotating pin (3) is embedded into the sliding groove (31) and is in sliding connection with the sliding groove (31); and a spring is fixedly connected between the rotating pin (3) and the bottom of the sliding groove (31).

4. The epoxy floor grinding disc of claim 3, characterized in that: the first grinding head (13) and the second grinding head (19) are arranged in a splayed mode, one end, close to each other, of the first grinding head (13) and the second grinding head (19) is fixedly connected with an inclined scraper (32), the bottom end of the scraper (32) inclines towards the direction, away from one end of the first grinding head (13) and the second grinding head (19) each other, and the top of the scraper (32) is fixedly connected with a filter screen (33).

5. The epoxy floor grinding disc of claim 4, characterized in that: the filter screen (33) is obliquely arranged, and the top of the filter screen (33) is inclined towards the direction far away from the center of the chassis (1); the filter screen (33) extends towards the periphery of the chassis (1) step by step in a wave shape; a central hole (34) is formed in the middle of the base plate (1), and the top of the filter screen (33) is communicated with the central hole (34) through an inclined hole (35).

6. The epoxy floor grinding disc of claim 5, characterized in that: the top of the filter screen (33) is fixedly connected with a second magnet (36), a group of third magnets (37) are uniformly distributed on the bottom of the upper disc (2) at the positions corresponding to the second magnet (36) on the circumference, and the magnetic poles of the third magnets (37) and the adjacent side of the second magnet (36) are the same; a conical elastic bag (4) is fixedly connected to a concave part on the inner side of the filter screen (33), and a pull rope (41) fixedly connected with the tip end of the elastic bag (4) penetrates through the filter screen (33) and extends to the outer side of the filter screen (33); the pull rope (41) is connected with the filter screen (33) in a sliding way; one end of the pull rope (41) positioned at the outer side of the filter screen (33) is fixedly connected with a small ball (42); the concave part of the outer side of the filter screen (33) is fixedly connected with an elastic air bag (43), and the air bag (43) is communicated with the elastic bag (4) through an air pipe.

7. The epoxy floor grinding disc of claim 6, characterized in that: a group of conical snap rings (44) are uniformly fixedly connected to the pull rope (41), and the tips of the snap rings (44) face to one side of the pull rope (41) close to the elastic bag (4); the pull rope (41) is in clearance fit with the filter screen (33), and the filter screen (33) has elasticity.