Floor base grinding and cleaning machine and method

Abstract

The present invention discloses a floor base grinding and cleaning machine and method, which relate to the technical field of floor grinding machines, and include a balancing vehicle, wherein a bottom rod is fixedly installed on the bottom of the balancing vehicle, a square frame is slidably installed on the bottom of the balancing vehicle, a servo motor is fixedly installed on the top of the square frame, the output end of the servo motor rotates and penetrates the inner and outer walls of the square frame, a grinding disc mounting piece is fixedly installed on the bottom of the output end of the servo motor, the fixed block is fixedly installed on the bottom of the balancing vehicle, the electric push rod is fixedly penetrated through the inner and outer walls of the fixed block, the output end of the electric push rod is fixedly installed on the surface of the square frame, the slide groove is provided on a side of the square frame close to the fixed block, and when not in use, some components of the device will be stored at the bottom of the balancing vehicle, so as to reduce the occupied area and reduce the impact on the operation of the staff.

Description

Technical Field

[0001] The invention relates to the technical field of floor grinding machines, and in particular to a floor base grinding and cleaning machine and method. Background Art

[0002] The floor base grinding and cleaning machine is a device used to clean and grind the floor base during the floor construction process to ensure that the base is flat and smooth, and remove surface stains and impurities to ensure that the floor decoration materials can fit firmly.

[0003] The patent with patent announcement number CN201586903U relates to a floor base grinding and cleaning machine, which comprises a frame, on which a motor is installed, and the motor is connected to a rotating disk through a transmission mechanism, and a push-pull handle and a walking wheel are also installed on the frame, and a grinding head is installed on the rotating disk, and the grinding head consists of a fixed frame and a wire rope head, and the fixed frame comprises two circular steel plates, a connecting rod is arranged between the two circular steel plates, and a steel pipe is arranged through the two circular steel plates, and the wire rope head can be arranged in the steel pipe, and at least one of the circular steel plates is provided with a connecting hole, which is convenient for bolting to the rotating disk. The patent has a simple structure, low cost, easy use and good cleaning effect.

[0004] In the above patent, connecting holes are provided on the circular steel plate to facilitate bolt connection with the rotating disk. It has a simple structure, low cost, easy use and good cleaning effect. However, when the grinder is not in use, some components of the grinder need to be stored. Random placement will cause the workers to be affected by the grinder during operation, resulting in inability to operate normally. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a floor base grinding and cleaning machine and method, which solves the problems raised in the above-mentioned background technology.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a floor base grinding and cleaning machine, comprising a balance car, a bottom rod is fixedly installed at the bottom of the balance car, a square frame is slidably installed at the bottom of the balance car, a servo motor is fixedly installed on the top of the square frame, the output end of the servo motor rotates and penetrates the inner and outer walls of the square frame, a grinding plate mounting piece is fixedly installed at the bottom of the output end of the servo motor, and a limiting device is provided at the bottom of the balance car;

[0007] The limiting device comprises: a fixed block, an electric push rod, a slide groove, an L-shaped plate, a blocking plate and an inclined block, wherein the fixed block is fixedly installed at the bottom of the balancing car, the electric push rod is fixedly passed through the inner and outer walls of the fixed block, the output end of the electric push rod is fixedly installed on the surface of the square frame, the slide groove is opened on a side of the square frame close to the fixed block, the L-shaped plate is fixedly installed on the surface of the fixed block, the blocking plate is fixedly installed on a side of the square frame close to the L-shaped plate, and the inclined block slides through the inner and outer walls of the square frame;

[0008] The bottom of the balancing vehicle is also provided with a protective device for protecting the grinding plate mounting parts and a stabilizing device for maintaining the balance of the balancing vehicle.

[0009] According to the above technical solution, the limiting device also includes: a slider, a limiting plate and a fixed column. The slider is slidably installed on the inner wall of the slide groove, the slider is fixedly installed on the surface of the inclined block, the limiting plate is fixedly installed on the side of the slider away from the inclined block, and the fixed column is fixedly installed on the inner wall of the fixed block. The circumferential surface of the fixed column is provided with a plurality of limiting grooves. After the inclined block is completely received in the square frame, the inclined block is blocked by the blocking plate, so that the L-shaped plate can no longer move further.

[0010] According to the above technical solution, the limit plate contacts the limit groove, the L-shaped plate contacts the blocking plate, and a No. 1 spring is arranged between the inclined plane block and the square frame, and the No. 1 spring drives the inclined plane block to reset.

[0011] According to the above technical scheme, the protective device includes: a sliding long rod, a triangular block, a fixed arc rod, a sliding plate, a protective rod and an elastic telescopic rod, the sliding long rod is slidably installed on the top of the inner wall of the square frame, one end of the sliding long rod is fixedly installed on the surface of the inclined block, the other end of the sliding long rod is slidably installed on the inner wall of the square frame, the triangular block is fixedly installed on a side of the sliding long rod close to the fixed column, the fixed arc rod is fixedly installed on the top of the inner wall of the square frame, the sliding plate is slidably installed on the bottom of the inner wall of the square frame, the elastic telescopic rod is fixedly passed through the inner and outer walls of the sliding plate, the free end of the elastic telescopic rod is fixedly installed on the surface of the fixed arc rod, and the protective rod is fixedly installed on the fixed end of the elastic telescopic rod, the movement of the fixed end of the elastic telescopic rod will drive the protective rod to move in a direction away from the fixed arc rod, and the protective rod will extend out of the interior of the square frame after moving, so that when the device is used, the protective rod will protect the front of the device.

[0012] According to the above technical solution, a No. 2 spring is arranged between the fixed arc rod and the sliding plate, the triangular block contacts the sliding plate, and the sliding plate is driven to reset by the No. 2 spring.

[0013] According to the above technical solution, the stabilizing device includes: a hollow box, a sealing block, a piston, a connecting rod, a square plate and an inflation hole, the hollow box is fixedly mounted on the surface of the square frame, the sealing block is slidably mounted on the inner wall of the square frame, the piston is slidably mounted on the inner wall of the hollow box, the connecting rod is fixedly mounted on the bottom of the piston, the square plate is fixedly mounted on the bottom of the connecting rod, and the inflation hole is opened on the inner and outer walls of the hollow box and the square frame, the square plate will push the connecting rod to move to the top in the opposite direction, the movement of the connecting rod will drive the piston to move to the top, and the movement of the piston will squeeze the air inside the hollow box and discharge it through another inflation hole.

[0014] According to the above technical solution, the stabilizing device also includes: a sealing plate and a transmission rod, wherein the sealing plate is slidably mounted on the surface of the hollow box, one fixed end of the transmission rod is fixedly mounted on the bottom of the sealing plate, and the other end of the transmission rod is fixedly mounted on the surface of the square plate. The square plate moves toward the top, which drives the transmission rod to move toward the top. The movement of the transmission rod drives the sealing plate to move toward the top. After the sealing plate moves, it blocks the other inflation hole.

[0015] According to the above technical solution, a No. 3 spring is arranged between the piston and the hollow box, the sealing plate is in contact with the inflation hole, and the No. 3 spring drives the piston to reset.

[0016] The present invention provides a floor base grinding and cleaning machine and method, which has the following beneficial effects:

[0017] (1) In the present invention, the limiting plate moves to contact the limiting groove and get stuck inside the limiting groove, so that the position of the square frame is limited and fixed, and the device can be used normally. When not in use, some components of the device will be stored at the bottom of the balancing vehicle, reducing the area occupied and the impact on the workers during operation. The inclined block is blocked by the blocking plate, so that the L-shaped plate can no longer move, so that the device will automatically limit itself after the square frame is extended to the farthest point, thereby improving the practicality of the device.

[0018] (2) The invention improves the protection effect of the device by moving the protective rod to extend into the interior of the square frame so that when the device is in use, the protective rod will protect the front of the device to prevent the device from being damaged due to the staff's blocked front view during use. The protective rod is moved to be retracted into the interior of the square frame so that when the device is not in use, it will move with the limit device and be stored on the inner wall of the balance car, further improving the practicality of the device.

[0019] (3) The invention, through the movement of the piston, squeezes the air inside the hollow box and discharges it through another inflation hole, so that the rotation speed of the hollow box is limited and it can only rotate slowly toward the bottom. When the balancing vehicle is released briefly, the device will briefly support the entire device and slowly tilt the entire device, thereby improving the protection effect of the device. After the sealing plate moves, it will block another inflation hole, so that the interior of the hollow box is in a completely sealed state and the device will no longer tilt, preventing excessive tilting from causing other components of the device to contact the ground and cause damage, thereby increasing the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 It is a schematic diagram of the bottom structure of the overall device of the present invention;

[0022] Figure 3 It is a schematic diagram of the internal structure of the square frame of the present invention;

[0023] Figure 4 This is a schematic diagram of the position relationship structure of the chute of the present invention;

[0024] Figure 5 It is a schematic diagram of the structure of the protective device of the present invention;

[0025] Figure 6 This is a schematic diagram of the position relationship structure of the inflation holes of the present invention;

[0026] Figure 7 It is a schematic diagram of the cross-sectional structure of the hollow box of the present invention.

[0027] In the figure: 1. Balance car; 2. Bottom bar; 3. Square frame; 4. Servo motor; 5. Grinding chassis mounting parts; 61. Fixed block; 62. Electric push rod; 63. Slide groove; 64. L-shaped plate; 65. Blocking plate; 66. Inclined block; 67. Sliding block; 68. Limiting plate; 69. Fixed column; 71. Sliding long rod; 72. Triangular block; 73. Fixed arc rod; 74. Sliding plate; 75. Protective rod; 76. Elastic telescopic rod; 77. No. 2 spring; 81. Hollow box; 82. Sealing block; 83. Piston; 84. Connecting rod; 85. Square plate; 86. Inflation hole; 87. Sealing plate; 88. Transmission rod; 89. No. 3 spring. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] See also Figure 1 - Figure 4 One embodiment of the present invention is: a floor base grinding and cleaning machine, comprising a balancing vehicle 1, a bottom rod 2 is fixedly installed at the bottom of the balancing vehicle 1, a square frame 3 is slidably installed at the bottom of the balancing vehicle 1, a servo motor 4 is fixedly installed on the top of the square frame 3, the output end of the servo motor 4 rotates and penetrates the inner and outer walls of the square frame 3, a grinding floor mounting piece 5 is fixedly installed at the bottom of the output end of the servo motor 4, and a limiting device is arranged at the bottom of the balancing vehicle 1;

[0030] Among them, the limiting device includes: a fixed block 61, an electric push rod 62, a slide groove 63, an L-shaped plate 64, a blocking plate 65 and a slope block 66. The fixed block 61 is fixedly installed at the bottom of the balancing car 1, the electric push rod 62 is fixedly passed through the inner and outer walls of the fixed block 61, the output end of the electric push rod 62 is fixedly installed on the surface of the square frame 3, the slide groove 63 is opened on a side of the square frame 3 close to the fixed block 61, the L-shaped plate 64 is fixedly installed on the surface of the fixed block 61, the blocking plate 65 is fixedly installed on a side of the square frame 3 close to the L-shaped plate 64, and the slope block 66 slides through the inner and outer walls of the square frame 3.

[0031] The limiting device also includes: a slider 67, a limiting plate 68 and a fixed column 69. The slider 67 is slidably installed on the inner wall of the slide groove 63, the slider 67 is fixedly installed on the surface of the inclined block 66, the limiting plate 68 is fixedly installed on the side of the slider 67 away from the inclined block 66, and the fixed column 69 is fixedly installed on the inner wall of the fixed block 61. The circumferential surface of the fixed column 69 is provided with a plurality of limiting grooves. When not in use, some components of the device will be stored at the bottom of the balancing car 1 to reduce the occupied area and reduce the impact on the staff's operation, so that the device will automatically limit after the square frame 3 is extended to the farthest point, thereby improving the practicality of the device.

[0032] The limiting plate 68 contacts the limiting groove, the L-shaped plate 64 contacts the blocking plate 65, and a No. 1 spring is arranged between the inclined surface block 66 and the square frame 3, and the No. 1 spring drives the inclined surface block 66 to reset.

[0033] A method for using a floor base grinding and cleaning machine comprises the following steps:

[0034] Step 1: Start the electric push rod 62. The movement of the output end of the electric push rod 62 will drive the square frame 3 to move away from the balancing vehicle 1. The movement of the square frame 3 will drive the L-shaped plate 64 to move away from the balancing vehicle 1.

[0035] Step 2: The L-shaped plate 64 moves to contact the inclined surface block 66. The movement of the L-shaped plate 64 drives the inclined surface block 66 to move toward the inside of the square frame 3. The movement of the inclined surface block 66 drives the slider 67 to move toward each other. The movement of the slider 67 drives the limit plate 68 to move toward the fixed column 69.

[0036] Step 3: The limiting plate 68 moves to contact the limiting groove and is inserted into the limiting groove, so that the position of the square frame 3 is limited, so that the position of the square frame 3 is fixed;

[0037] Step 4: Reduce the occupied area and reduce the impact on the workers' operations. After the inclined block 66 is completely stored in the square frame 3, the inclined block 66 is blocked by the blocking plate 65, so that the L-shaped plate 64 can no longer move. When the square frame 3 is extended to the farthest point, the limit device will automatically limit the position, thereby improving the practicality of the cleaning machine.

[0038] When the present embodiment is working, the electric push rod 62 is started, and the movement of the output end of the electric push rod 62 will drive the square frame 3 to move away from the balancing vehicle 1, and the movement of the square frame 3 will drive the L-shaped plate 64 to move away from the balancing vehicle 1, and the movement of the L-shaped plate 64 will contact the inclined surface block 66, and the movement of the L-shaped plate 64 will drive the inclined surface block 66 to move toward the inside of the square frame 3, and the movement of the inclined surface block 66 will drive the slider 67 to move toward each other, and the movement of the slider 67 will drive the limit plate 68 to move toward the fixed column 69, and the limit plate 68 will contact the limit groove and be stuck in the limit groove, so that the position of the square frame 3 is limited, so that the position of the square frame 3 is fixed, and the device can be used normally. When not in use, some components of the device will be stored at the bottom of the balancing vehicle 1 to reduce the area occupied. , reducing the impact on the staff's operation. After the inclined plane block 66 is completely stored in the square frame 3, the inclined plane block 66 is blocked by the blocking plate 65, so that the L-shaped plate 64 cannot continue to move, so that the device will automatically limit after the square frame 3 is extended to the farthest point, thereby improving the practicality of the device. The movement of the output end of the electric push rod 62 will drive the square frame 3 to move in the direction of the balancing car 1, and the movement of the square frame 3 will drive the L-shaped plate 64 to move in the direction of the balancing car 1. The movement of the L-shaped plate 64 does not depend on contacting the inclined plane block 66. The inclined plane block 66 is driven to move by the reset of the No. 1 spring. The movement of the inclined plane block 66 will drive the slider 67 to move in the direction away from each other. The movement of the slider 67 will drive the limit plate 68 to move in the direction away from the fixed column 69. After the limit plate 68 moves, it no longer contacts the limit groove, so that the device can be stored.

[0039] See also Figure 1 - Figure 7 On the basis of the above embodiment, in another embodiment of the present invention, a protective device for protecting the grinding plate mounting member 5 and a stabilizing device for maintaining the balance of the balancing vehicle 1 are further provided at the bottom of the balancing vehicle 1, wherein the protective device comprises: a sliding long rod 71, a triangular block 72, a fixed arc rod 73, a sliding plate 74, a protective rod 75 and an elastic telescopic rod 76, the sliding long rod 71 is slidably mounted on the top of the inner wall of the square frame 3, one end of the sliding long rod 71 is fixedly mounted on the surface of the inclined block 66, and the other end of the sliding long rod 71 is slidably mounted on the surface of the square frame 3 The inner wall, the triangular block 72 is fixedly mounted on one side of the sliding long rod 71 close to the fixed column 69, the fixed arc rod 73 is fixedly mounted on the top of the inner wall of the square frame 3, the sliding plate 74 is slidably mounted on the bottom of the inner wall of the square frame 3, the elastic telescopic rod 76 is fixedly passed through the inner and outer walls of the sliding plate 74, the free end of the elastic telescopic rod 76 is fixedly mounted on the surface of the fixed arc rod 73, and the protective rod 75 is fixedly mounted on the fixed end of the elastic telescopic rod 76 to prevent the device from being damaged due to collision caused by the staff's front field of view being blocked during use, thereby improving the protection effect of the device.

[0040] A No. 2 spring 77 is provided between the fixed arc rod 73 and the sliding plate 74 , and the triangular block 72 is in contact with the sliding plate 74 , and the sliding plate 74 is driven to reset by the No. 2 spring.

[0041] The stabilizing device includes: a hollow box 81, a sealing block 82, a piston 83, a connecting rod 84, a square plate 85 and an inflation hole 86. The hollow box 81 is fixedly mounted on the surface of the square frame 3, the sealing block 82 is slidably mounted on the inner wall of the square frame 3, the piston 83 is slidably mounted on the inner wall of the hollow box 81, the connecting rod 84 is fixedly mounted on the bottom of the piston 83, the square plate 85 is fixedly mounted on the bottom of the connecting rod 84, and the inflation hole 86 is opened on the inner and outer walls of the hollow box 81 and the square frame 3, so that the rotation speed of the hollow box 81 is limited and can only rotate slowly toward the bottom, so that when the balancing car 1 is temporarily released, the device will temporarily support the entire device and slowly tilt the entire device, thereby improving the protection effect of the device.

[0042] The stabilizing device also includes: a sealing plate 87 and a transmission rod 88. The sealing plate 87 is slidably mounted on the surface of the hollow box 81, one end of the transmission rod 88 is fixedly mounted on the bottom of the sealing plate 87, and the other end of the transmission rod 88 is fixedly mounted on the surface of the square plate 85, so that the interior of the hollow box 81 is in a completely sealed state, and the device is no longer tilted, so as to prevent excessive tilting from causing other components of the device to contact with the ground and cause damage, thereby improving the service life of the device.

[0043] A No. 3 spring 89 is provided between the piston 83 and the hollow box 81 , and the sealing plate 87 is in contact with the inflation hole 86 , and the No. 3 spring 89 drives the piston 83 to reset.

[0044] When the present embodiment is working, the movement of the inclined plane block 66 will drive the sliding long rod 71 to move toward a side close to each other, the movement of the sliding long rod 71 will drive the triangular block 72 to move in a direction close to each other, the movement of the triangular block 72 will contact the sliding plate 74, the movement of the triangular block 72 will drive the sliding plate 74 to move in a direction away from the fixed arc rod 73, the movement of the sliding plate 74 will drive the fixed end of the elastic telescopic rod 76 to move in a direction away from the fixed arc rod 73, the movement of the fixed end of the elastic telescopic rod 76 will drive the protective rod 75 to move in a direction away from the fixed arc rod 73, and the protective rod 75 will extend out of the interior of the square frame 3 after movement, so that when the device is used, the protective rod 75 will protect the front of the device to prevent the staff from being in use due to the front The blocked field of vision may cause the device to be bumped and damaged, so as to improve the protection effect of the device, the movement of the sliding long rod 71 will drive the triangular block 72 to move in the directions away from each other. After the triangular block 72 moves, it no longer contacts the sliding plate 74, and the sliding plate 74 is reset by the No. 2 spring 77 to drive the sliding plate 74 to move in the direction of the fixed arc rod 73. The movement of the sliding plate 74 will drive the fixed end of the elastic telescopic rod 76 to move in the direction of the fixed arc rod 73. The movement of the fixed end of the elastic telescopic rod 76 will drive the protective rod 75 to move in the direction of the fixed arc rod 73. After the protective rod 75 moves, it is retracted into the interior of the square frame 3, so that the device will be moved with the limit device and stored in the inner wall of the balancing car 1 when not in use, thereby further improving the practicability of the device.

[0045] The movement of the sliding plate 74 will contact the sealing block 82, and the movement of the sliding plate 74 will drive the sealing block 82 to move in the direction of one of the inflation holes 86. After the sealing block 82 moves, it will block the inflation hole 86. The rotation of the square frame 3 will drive the hollow box 81 to rotate toward the bottom. The rotation of the hollow box 81 will drive the piston 83 to rotate toward the bottom. The rotation of the piston 83 will drive the connecting rod 84 to rotate toward the bottom. The rotation of the connecting rod 84 will drive the square plate 85 to rotate toward the bottom. The rotation of the square plate 85 will contact the ground, and the square plate 85 will push the connecting rod 84 to move toward the top in the opposite direction. The movement of the connecting rod 84 will drive the piston 83 to move toward the top. The movement of the piston 83 will squeeze the air inside the hollow box 81 The air is discharged through another inflation hole 86, so that the rotation speed of the hollow box 81 is limited and it can only rotate slowly toward the bottom, so that when the balancing vehicle 1 is briefly released, the device will briefly support the entire device and slowly tilt the entire device, thereby improving the protection effect of the device. The square plate 85 moves toward the top, which will drive the transmission rod 88 to move toward the top. The movement of the transmission rod 88 will drive the sealing plate 87 to move toward the top. After the sealing plate 87 moves, it will block the other inflation hole 86, so that the interior of the hollow box 81 is in a completely sealed state, and the device will no longer tilt, thereby preventing excessive tilting from causing other components of the device to contact the ground and cause damage, thereby improving the service life of the device.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A floor base grinding and cleaning machine, comprising a balancing vehicle (1), characterized in that: The bottom of the balancing vehicle (1) is fixedly mounted with a bottom rod (2), the bottom of the balancing vehicle (1) is slidably mounted with a square frame (3), the top of the square frame (3) is fixedly mounted with a servo motor (4), the output end of the servo motor (4) rotates and penetrates the inner and outer walls of the square frame (3), the bottom of the output end of the servo motor (4) is fixedly mounted with a grinding plate mounting member (5), and a limiting device is provided at the bottom of the balancing vehicle (1); The limiting device comprises: a fixed block (61), an electric push rod (62), a slide groove (63), an L-shaped plate (64), a blocking plate (65) and an inclined block (66); the fixed block (61) is fixedly mounted on the bottom of the balancing vehicle (1); the electric push rod (62) is fixedly penetrated through the inner and outer walls of the fixed block (61); the output end of the electric push rod (62) is fixedly mounted on the surface of the square frame (3); the slide groove (63) is opened on a side of the square frame (3) close to the fixed block (61); the L-shaped plate (64) is fixedly mounted on the surface of the fixed block (61); the blocking plate (65) is fixedly mounted on a side of the square frame (3) close to the L-shaped plate (64); and the inclined block (66) slides through the inner and outer walls of the square frame (3); The limiting device further comprises: a slider (67), a limiting plate (68) and a fixed column (69), wherein the slider (67) is slidably mounted on the inner wall of the slide groove (63), the slider (67) is fixedly mounted on the surface of the inclined surface block (66), the limiting plate (68) is fixedly mounted on a side of the slider (67) away from the inclined surface block (66), the fixed column (69) is fixedly mounted on the inner wall of the fixed block (61), and a plurality of limiting grooves are formed on the circumferential surface of the fixed column (69); The bottom of the balancing vehicle (1) is also provided with a protective device for protecting the grinding plate mounting member (5) and a stabilizing device for maintaining the balance of the balancing vehicle (1).

2. A floor base grinding and cleaning machine according to claim 1, characterized in that: The limiting plate (68) contacts the limiting groove, the L-shaped plate (64) contacts the blocking plate (65), and a No. 1 spring is provided between the inclined surface block (66) and the square frame (3).

3. A floor base grinding and cleaning machine according to claim 2, characterized in that: The protective device comprises: a sliding long rod (71), a triangular block (72), a fixed arc rod (73), a sliding plate (74), a protective rod (75) and an elastic telescopic rod (76), wherein the sliding long rod (71) is slidably mounted on the top of the inner wall of the square frame (3), one end of the sliding long rod (71) is fixedly mounted on the surface of the inclined block (66), and the other end of the sliding long rod (71) is slidably mounted on the inner wall of the square frame (3), the triangular block (72) is fixedly mounted on a side of the sliding long rod (71) close to the fixed column (69), the fixed arc rod (73) is fixedly mounted on the top of the inner wall of the square frame (3), the sliding plate (74) is slidably mounted on the bottom of the inner wall of the square frame (3), the elastic telescopic rod (76) is fixedly mounted to penetrate the inner and outer walls of the sliding plate (74), the free end of the elastic telescopic rod (76) is fixedly mounted on the surface of the fixed arc rod (73), and the protective rod (75) is fixedly mounted on the fixed end of the elastic telescopic rod (76).

4. A floor base grinding and cleaning machine according to claim 3, characterized in that: A No. 2 spring (77) is provided between the fixed arc rod (73) and the sliding plate (74), and the triangular block (72) is in contact with the sliding plate (74).

5. A floor base grinding and cleaning machine according to claim 4, characterized in that: The stabilizing device comprises: a hollow box (81), a sealing block (82), a piston (83), a connecting rod (84), a square plate (85) and an inflation hole (86); the hollow box (81) is fixedly mounted on the surface of the square frame (3); the sealing block (82) is slidably mounted on the inner wall of the square frame (3); the piston (83) is slidably mounted on the inner wall of the hollow box (81); the connecting rod (84) is fixedly mounted on the bottom of the piston (83); the square plate (85) is fixedly mounted on the bottom of the connecting rod (84); and the inflation hole (86) is provided on the inner and outer walls of the hollow box (81) and the square frame (3).

6. A floor base grinding and cleaning machine according to claim 5, characterized in that: The stabilizing device further comprises: a sealing plate (87) and a transmission rod (88), wherein the sealing plate (87) is slidably mounted on the surface of the hollow box (81), one fixed end of the transmission rod (88) is fixedly mounted on the bottom of the sealing plate (87), and the other end of the transmission rod (88) is fixedly mounted on the surface of the square plate (85).

7. A floor base grinding and cleaning machine according to claim 6, characterized in that: A No. 3 spring (89) is provided between the piston (83) and the hollow box (81), and the sealing plate (87) is in contact with the inflation hole (86).

8. A method for using a floor base grinding and cleaning machine, using the floor base grinding and cleaning machine according to claim 7, characterized in that: The following steps are involved: Step 1: Start the electric push rod (62). The movement of the output end of the electric push rod (62) drives the square frame (3) to move away from the balancing vehicle (1). The movement of the square frame (3) drives the L-shaped plate (64) to move away from the balancing vehicle (1). Step 2: The L-shaped plate (64) moves to contact the inclined surface block (66). The movement of the L-shaped plate (64) drives the inclined surface block (66) to move toward the inside of the square frame (3). The movement of the inclined surface block (66) drives the slider (67) to move toward each other. The movement of the slider (67) drives the limit plate (68) to move toward the fixed column (69). Step 3: The limiting plate (68) moves to contact the limiting groove and is inserted into the limiting groove, so that the position of the square frame (3) is limited, and the position of the square frame (3) is fixed; Step 4: Reduce the occupied area and reduce the impact on the workers during operation. After the inclined block (66) is completely stored in the square frame (3), the inclined block (66) is blocked by the blocking plate (65), so that the L-shaped plate (64) can no longer move. When the square frame (3) is extended to the farthest point, the limit device will automatically limit the position, thereby improving the practicality of the cleaning machine.

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