Hand-push type ground polishing machine with anti-falling function

Abstract

The utility model discloses a hand-push type ground polishing machine with an anti-falling function, relates to the field of building control equipment, and aims to solve the problems that after the polishing machine is released from the hand, an internal machine continues to work, so that the machine is out of control, and surrounding personnel, articles and the ground are damaged. Comprising a polishing cutter, a polishing mechanical frame, a sawtooth plastic shell, a protective cover, a control rod and a handrail, a hand valve and a power switch are arranged below the handrail, the hand valve is fixedly connected with a steel strand, the steel strand is fixedly connected with a control mechanism, the control mechanism is located in the sawtooth plastic shell, and a gasoline engine is arranged at the upper end of the control mechanism; the polishing machine has the advantages that the structure is safe, when an operator neglects to slip out of the hand, concave teeth of the upper rotating shaft and convex teeth of the lower rotating shaft are promoted to be separated, the polishing cutter does not receive power of the gasoline engine any more and stops rotating rapidly, and the polishing machine is not prone to falling out of the hand and not prone to falling out of the hand. The out-of-control risk of the machine is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of building control equipment, in particular to a hand-push floor polisher with an anti-lost-hand function. Background Art

[0002] A hand-push floor polisher is a mechanical device used to perform finishing and polishing on the surface of initially set concrete. It usually consists of a body, a motor, a polishing blade, a control handle, and other parts. The body is designed to be easy for the operator to push. The motor provides power to drive the polishing blade to rotate at high speed. The operator holds the operating handle and pushes the machine to move on the ground, driving the polishing blade to rotate through the shaft to achieve the purpose of improving the smoothness and integrity of the concrete surface.

[0003] The existing hand-push floor polishers have the problem that due to the lack of control experience of the operator, the operator may lose control due to unexpected circumstances during the pushing process, causing the machine to lose control and cause damage to surrounding people, objects and the ground.

[0004] At present, most of the technical improvements of hand-push floor polishers are based on software technology programming to achieve the purpose of machine self-identification and control. However, this technical improvement often ignores the relatively complex working conditions of the hand-push floor polisher, resulting in the improved hand-push floor polisher being unable to provide long-term guarantees in terms of safety and reliability. Utility Model Content

[0005] In view of the above situation, in order to overcome the defects of the existing technology, the present invention provides a hand-push floor polisher with an anti-lost-hand function. This design effectively solves the problem that after the polisher is out of hand, the internal machine continues to work, causing the machine to lose control and cause damage to surrounding people, objects and the ground.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the utility model includes a polishing knife, the upper end of the polishing knife is rotatably connected to the polishing machine frame, the upper end of the polishing machine frame is fixedly connected to a serrated plastic shell, the upper end of the serrated plastic shell is fixedly connected to a protective cover, the side of the protective cover is fixedly connected to a control rod, the end of the control rod is fixedly connected to an armrest, a hand valve and a power switch are provided below the armrest, a steel strand is fixedly connected to the hand valve, the other end of the steel strand is fixedly connected to a control mechanism, the control mechanism is located in the serrated plastic shell, a gasoline power machine is provided at the upper end of the control mechanism, an upper rotating shaft is fixedly connected to the gasoline power machine, a lower rotating shaft is matched below the upper rotating shaft, the lower end of the lower rotating shaft is fixedly connected to the polishing knife, and the hand valve controls the engagement of the upper rotating shaft and the lower rotating shaft through the steel strand and the control mechanism;

[0007] The control mechanism includes a lower support plate, which is fixedly connected to the polishing machine frame. Two symmetrically distributed I-shaped steels are fixedly connected to the lower support plate. A power spring is provided on the inner side of the I-shaped steel. The lower end of the power spring is fixedly connected to the lower support plate. The upper end of the I-shaped steel is fixedly connected to an upper support plate. The gasoline power machine is installed on the upper support plate. The upper support plate is fixedly connected to the protective cover. The upper support plate is provided with a slot for the I-shaped steel to pass through.

[0008] Preferably, a first magnetic induction coil is fixedly connected to the steel strands at the upper ends of the two I-shaped steels, and two second magnetic induction coils cooperating with the first magnetic induction coils are provided on the upper support plate. The height of the second magnetic induction coil is higher than that of the first magnetic induction coil. An opening is provided on the I-shaped steel, and the opening and the second magnetic induction coil are at the same height.

[0009] Preferably, a heat dissipation steel mesh is fixedly connected to the middle of the serrated plastic shell, and the heat dissipation steel mesh is a hole-shaped structure.

[0010] Preferably, upper steel grooves are provided on both sides of the upper rotating shaft, and lower steel grooves are provided on both sides of the lower rotating shaft, and the upper steel grooves and the lower steel grooves extend in an interlaced manner.

[0011] Preferably, the control rod is a hollow rod, and the steel strand is located inside the control rod.

[0012] Preferably, the two I-shaped steels are hollow structures, the steel strands pass through the top ends of the I-shaped steels and are fixedly connected to the bottom ends of the I-shaped steels, and a movable pulley is provided in the middle of the steel strands.

[0013] Preferably, the slotted hole on the upper support plate is smaller than the width of the upper end steel head of the I-shaped steel.

[0014] Preferably, a gear is fixedly connected to the upper rotating shaft, generators are provided on both sides of the gear, batteries are provided outside the generator, and a display screen and a power-on delay relay are externally connected to the battery.

[0015] Compared with the prior art, the present invention has the following outstanding advantages:

[0016] The upper rotating shaft and the lower rotating shaft of the utility model adopt a split design, and an upper steel groove is provided on the upper rotating shaft, and a lower steel groove is provided on the lower rotating shaft, which is convenient for accurately docking and linking the upper rotating shaft and the lower rotating shaft, and is convenient for solving the lateral vibration that may be generated at the rotating shaft linkage part during use, while ensuring the stable working state of the polishing machine, and improving the safety and reliability of the linkage part.

[0017] The hand valve of the utility model pulls the steel strand, and the steel strand drives the control mechanism to adjust the engagement of the upper rotating shaft and the lower rotating shaft. When in use, when the hand valve is separated from the operator's hand, the upper rotating shaft and the lower rotating shaft are automatically separated, and the polishing knife is separated from the power source, thereby ensuring that the hand-propelled floor polisher quickly reaches a stationary state, and better ensuring the safety of the operator.

[0018] The lower end of the I-shaped steel of the utility model fixes and supports the lower support plate, which on the one hand ensures the stability of the connection between the I-shaped steel and the lower support plate, and on the other hand prevents the problem of mechanical vibration noise generated by the steel strand pulling the lower support plate and the I-shaped steel when the polishing machine is working, thereby ensuring the reliability of the device.

[0019] The utility model stores electricity in the storage battery, and provides electric energy for starting the gasoline engine and keeping the display screen on in working state, thereby improving energy utilization and avoiding delays in work progress due to insufficient power of the storage battery. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the front structure of the utility model.

[0021] Figure 2 It is a schematic diagram of the left side structure of the utility model.

[0022] Figure 3 It is a schematic diagram of the right side structure of the present utility model.

[0023] Figure 4 This is a schematic diagram of the internal structure of the plastic serrated shell of the utility model.

[0024] Figure 5 This is a schematic diagram of the matching structure of the upper rotating shaft and the lower rotating shaft of the utility model.

[0025] Figure 6 This is a schematic diagram of the circuit connection structure of the power-on delay relay of the utility model.

[0026] Numbers in the figure: 1. Polishing knife; 2. Polishing machine frame; 3. Plastic serrated shell; 4. Heat dissipation steel mesh; 5. Control lever; 6. Power switch; 7. Hand valve; 8. Handrail; 9. Movable pulley; 10. Gasoline engine; 11. Lower support plate; 12. Upper support plate; 13. Power spring; 14. I-shaped steel; 15. Steel strand; 16. First magnetic induction coil; 17. Second magnetic induction coil; 18. Generator; 19. Gear; 20. Upper shaft; 21. Lower shaft; 22. Upper steel trough; 23. Lower steel trough; 24. Display screen; 25. Battery; 26. Power-on delay relay. DETAILED DESCRIPTION

[0027] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments; based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0028] Please see the attached Figure 1-6 , this embodiment is a hand-push floor polisher with an anti-missing function: it includes a polishing knife 1, the upper end of the polishing knife 1 is rotatably connected to the polishing machine frame 2, the upper end of the polishing machine frame 2 is fixedly connected to a serrated plastic shell, the upper end of the serrated plastic shell is fixedly connected to a protective cover, the side of the protective cover is fixedly connected to a control rod 5, the end of the control rod 5 is fixedly connected to an armrest 8, a hand valve 7 and a power switch 6 are provided below the armrest 8, a steel strand 15 is fixedly connected to the hand valve 7, the other end of the steel strand 15 is fixedly connected to a control mechanism, the control mechanism is located in the serrated plastic shell, a gasoline engine 10 is provided at the upper end of the control mechanism, an upper rotating shaft 20 is fixedly connected to the gasoline engine 10, and a lower portion of the upper rotating shaft 20 is provided. It is equipped with a lower rotating shaft 21, the lower end of which is fixedly connected to the polishing knife. The hand valve 7 controls the engagement of the upper rotating shaft 20 and the lower rotating shaft 21 through the steel strand 15 and the control mechanism. The control mechanism includes a lower support plate 11, which is fixedly connected to the polishing machine frame 2. Two symmetrically distributed I-shaped steels 14 are fixedly connected to the lower support plate 11. A power spring 13 is provided on the inside of the I-shaped steel 14. The lower end of the power spring 13 is fixedly connected to the lower support plate 11. The upper end of the I-shaped steel 14 is fixedly connected to an upper support plate 12. The gasoline power engine 10 is mounted on the upper support plate 12. The upper support plate 12 is fixedly connected to the protective cover, and the upper support plate 12 is provided with a slot for the I-shaped steel 14 to pass through.

[0029] There are two handrails 8 on the control lever 5. When in use, the user holds the two handrails 8 with both hands. Below the handrails 8 are the hand valve 7 and the power switch 6. The power switch 6 controls the start and stop button of the gasoline motor. The hand valve 7 controls the engagement of the upper rotating shaft 20 and the lower rotating shaft 21 through the steel strand 15 and the control mechanism. The upper rotating shaft 20 is provided with concave teeth at the bottom, and the lower rotating shaft 21 is provided with convex teeth at the top. When the polishing knife 1 is working normally, the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 are in a bite state. When the hand valve 7 is released, the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 are disengaged from each other, thereby achieving the effect of stopping the polishing knife 1 as soon as it is out of hand.

[0030] A first magnetic induction coil 16 is provided on one side of the upper end of the I-shaped steel 14. The lower end of the I-shaped steel 14 is stably anchored to the lower support plate 11. The middle section and the upper end are not anchored. The upper end limits the upward movement of the upper support plate 12. A power spring 13 is provided on the inside of the I-shaped steel 14. The upper end of the power spring 13 is anchored to the upper support plate 12, and the lower end is anchored to the lower support plate 11. The upper and lower support plates 11 are protected by a heat dissipation steel mesh 4 and a serrated plastic shell.

[0031] The heat dissipation steel mesh 4 is formed by overlapping non-ductile metal steel wires, and the overlapping points are reliably welded. The heat dissipation steel mesh 4 is a hole-shaped structure, and the hole size is 3 mm.

[0032] The serrated plastic shell is fixed to the upper and lower contact points of the heat dissipation steel mesh 4 by winding steel wires. The serrated plastic shell is fixed to the upper support plate 12 and the lower support plate 11 by winding steel wires respectively. The serrated plastic shell is designed with a retractable serrated structure. By stretching and compressing the serrated surface structure, the protective surface is kept in a stable state.

[0033] The left side of the serrated plastic shell is provided with an I-shaped steel 14 and a power spring 13, and the right side is also provided with an I-shaped steel 14 and a power spring 13. The middle part is the linkage component of the upper rotating shaft 20 and the lower rotating shaft 21. The power spring 13 and the contact surface with the upper support plate 12 and the lower support plate 11 are connected by electric welding. The upper end of the upper rotating shaft 20 is connected to the gasoline power engine 10, and the lower end of the lower rotating shaft 21 is connected to the polishing knife 1. The concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 are engaged and linked. Upper steel grooves 22 are provided on both sides of the concave teeth of the upper rotating shaft 20, and lower steel grooves are provided on both sides of the convex teeth of the lower rotating shaft 21. 23, the upper and lower steel grooves 23 are staggered and extended. When the upper and lower rotating shafts 21 are in a naturally separated state, the upper steel groove 22 is still staggered and extends into the lower steel groove 23 by 2 cm, thereby ensuring that the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 are in the same vertical plane. The concave teeth of the upper rotating shaft 20 are arc-shaped concave teeth, and the convex teeth of the lower rotating shaft 21 are arc-shaped convex teeth. When the upper and lower rotating shafts 21 are linked, the concave teeth and the convex teeth fit tightly. The distance from the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 to free separation and engagement is 2 cm. Both the upper rotating shaft 20 and the lower rotating shaft 21 are made of rigid strength alloy structure;

[0034] The upper rotating shaft 20 is connected to the generator 18 through the gear 19, and the generator 18 is connected to the battery 25, and together with the display screen 24 through the circuit, a digital display control device is formed.

[0035] Furthermore, the control rod 5 is a hollow rod of metal alloy, and the inside of the rod is coated with a 2 mm thick anti-conductive plastic coating. A steel strand 15 passes through the control rod 5. The upper end of the steel strand 15 is connected to the hand valve 7, and the lower end is connected to the bottom of the I-shaped steel 14. The steel strand 15 in the control rod 5 on the other side is arranged in the same way. After the steel strand 15 passes through the upper end of the I-shaped steel 14, it is corrected by the movable pulley 9. The steel strand 15 passes through the control rod 5 in the center and is connected to the hand valve 7. The steel strand 15 in the control rod 5 on the other side has the same path. A first magnetic induction coil 16 is provided on the steel strand 15. The vertical distance between the first magnetic induction coil 16 and the second magnetic induction coil 17 provided on the upper support plate 12 is 2 cm. This distance is the same as the distance from the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 to free separation and engagement.

[0036] The connection between the upper and lower ends of the I-shaped steel 14 and the upper support plate 12 and the lower support plate 11 is as follows: the lower end of the I-shaped steel 14 is stably anchored to the lower support plate 11, and the lower support plate 11 is stably anchored by the steel head and the rod body of the I-shaped steel 14. The upper support plate 12 is set with an opening slightly larger than the width of the rod body of the I-shaped steel 14, and the size of the opening is smaller than the width of the steel head at the upper end of the I-shaped steel 14. The upper support plate 12 can be displaced downward, and the displacement range is the distance of 2 cm from the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 to the combination linkage. When it is displaced upward, it is subjected to the work The upper end of the steel section 14 is limited by the steel head. The shaft of the I-shaped steel 14 is a hollow structure with a 1mm thick anti-conductive plastic coating inside. The second magnetic induction coil 17 is provided with a 1cm square opening on the left side of the I-shaped steel 14. This provides space for the steel strand 15 to drive the first magnetic induction coil 16 to move, and ensures the accuracy of the electrical signal transmission between the first magnetic induction coil 16 and the second magnetic induction coil 17. The upper support plate 12 is provided with the second magnetic induction coil 17 and the generator 18, which is welded to the upper support plate 12.

[0037] The gasoline engine 10 provides power for the grinding knife 1 to rotate by the engagement between the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21.

[0038] The upper rotating shaft 20 is connected to the generator 18 through a gear 19 and rotates due to the rotation of the upper rotating shaft 20. The non-anchored end of the upper end of the I-shaped steel 14 only limits the upward displacement of the upper support plate 12. The I-shaped steel 14 and the magnetic induction coil at the other end are set in the same position as the generator 18. The I-shaped steel 14 is provided with a 1 cm square opening on the right side of the magnetic induction coil. The magnetic induction coil is connected by a wire. When the hand valve 7 is tightened, the steel strand 15 is tightened. When the steel strand 15 drives the lower support plate 11 of the anchoring end of the I-shaped steel 14 to move upward, the power spring 13 is compressed. The upper rotating shaft 20 and the lower rotating shaft 21 are closely combined and linked. After the first magnetic induction coil 16 moves upward with the steel strand 15, the first magnetic induction coil 16 and the second magnetic induction coil 17 are in the same horizontal state. At this time, the power switch 6, the first magnetic induction coil 16, the second magnetic induction coil 17, the power-on delay relay 26, the gasoline engine 10, the battery 25 and the display screen 24 are together composed of a digital display starting device through the circuit.

[0039] The overall workflow when using this utility model:

[0040] Step 1: After the operator places the machine on the cement base surface to be smoothed, he turns on the power switch 6, places his hands on the handrail 8, and holds the hand valve 7 tightly. Holding the hand valve 7 tightly can ensure the operator's concentration. At this time, the hand valve 7 drives and stretches the steel strand 15, and the steel strand 15 pulls the I-shaped steel 14 and drives the lower support plate 11 to move upward;

[0041] Step 2: When the lower support plate 11 moves upward, the power spring 13 is compressed. The serrated plastic shell is compressed by force, and the upper end of the I-shaped steel 14 rises along the slot of the upper support plate 12, thereby causing the upper support plate 12 to move downward by 2 cm relative to the I-shaped steel 14. At this time, the first magnetic induction coil 16 and the second magnetic induction coil 17 are at the same horizontal position. At the same time, the concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 are tightly meshed, and the upper rotating shaft 20 and the lower rotating shaft 21 form a linked whole.

[0042] Step 3: At this time, the battery 25 transmits the electrical signal through the power switch 6, the first magnetic induction coil 16 and the second magnetic induction coil 17 to the power delay relay 26. The display screen 24 lights up to display the current speed and the touch screen button for adjusting the speed. When the electrical signal passes through the delay relay, a 3s start protection time is set. Then, the start signal is transmitted to the gasoline engine 10. After the gasoline engine 10 is loaded and started, it drives the upper shaft 20 and the lower shaft 21 to rotate synchronously. The lower shaft 21 drives the polishing knife 1 to rotate and smooth the working surface.

[0043] Step 4: When the gasoline engine 10 is in operation and drives the shaft to rotate, the shaft drives the generator 18 to rotate through the gear 19 to generate electricity, and the power is stably stored in the battery 25, which is efficient and energy-saving while facilitating the startup operation of the device;

[0044] Step 5: When the operator makes a mistake and leaves the handrail 8 with one hand, the hand valve 7 will no longer pull the steel strand 15. At this time, the upper support plate 12 on one side of the I-shaped steel 14 begins to move upward. In one group, the first magnetic induction coil 16 and the second magnetic induction coil 17 will no longer be at the same horizontal position. The electrical signal transmission will no longer be stable. The power-on delay relay 26 will no longer provide an electrical signal indicating stable operation to the gasoline engine 10. The display screen 24 will provide an alarm indication. At the same time, the upper shaft 20 will be in an idle state and the grinding knife 1 will slowly stop rotating.

[0045] Step 6: When the operator makes a big mistake and leaves the armrest 8 with both hands, the power spring 13 separates the upper support plate 12 and the lower support plate 11 by 2 cm according to its own elastic force. The concave teeth of the upper rotating shaft 20 and the convex teeth of the lower rotating shaft 21 quickly spring apart. The polishing knife 1 stops rotating after losing the power source instantly. At the same time, the first magnetic induction coil 16 and the second magnetic induction coil 17 are no longer in the same horizontal position, so the electrical signal cannot be transmitted. The gasoline engine 10 cannot receive the working signal and gradually stops driving the concave teeth of the upper rotating shaft 20 to rotate according to its own inertia. However, at this time, the polishing knife 1 has already stopped working and is in a stable static state, achieving the purpose of preventing loss of control when the hand is out of the hand.

[0046] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent replacements for some of the technical features therein. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A hand-push floor polisher with an anti-mistake function, characterized by: The invention comprises a polishing knife (1), the upper end of the polishing knife (1) is rotatably connected to a polishing machine frame (2), the upper end of the polishing machine frame (2) is fixedly connected to a serrated plastic shell, the upper end of the serrated plastic shell is fixedly connected to a protective cover, the side of the protective cover is fixedly connected to a control rod (5), the end of the control rod (5) is fixedly connected to a handrail (8), a hand valve (7) and a power switch (6) are provided below the handrail (8), a steel strand (15) is fixedly connected to the hand valve (7), and the protective cover is fixedly connected to the control rod (5). The other end of the steel strand (15) is fixedly connected to a control mechanism, which is located in a serrated plastic housing. A gasoline engine (10) is provided at the upper end of the control mechanism. An upper rotating shaft (20) is fixedly connected to the gasoline engine (10). A lower rotating shaft (21) is provided below the upper rotating shaft (20). The lower end of the lower rotating shaft (21) is fixedly connected to the polishing knife. A hand valve (7) controls the engagement of the upper rotating shaft (20) and the lower rotating shaft (21) through the steel strand (15) and the control mechanism. The control mechanism includes a lower support plate (11), the lower support plate (11) is fixedly connected to the polishing machine frame (2), two symmetrically distributed I-shaped steels (14) are fixedly connected to the lower support plate (11), a power spring (13) is provided on the inner side of the I-shaped steel (14), the lower end of the power spring (13) is fixedly connected to the lower support plate (11), the upper end of the I-shaped steel (14) is fixedly connected to the upper support plate (12), the gasoline engine (10) is installed on the upper support plate (12), the upper support plate (12) is fixedly connected to the protective cover, and the upper support plate (12) is provided with a slot for the I-shaped steel (14) to pass through.

2. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: A first magnetic induction coil (16) is fixedly connected to the steel strands (15) at the upper ends of the two I-shaped steels (14); two second magnetic induction coils (17) cooperating with the first magnetic induction coils (16) are provided on the upper support plate (12); the height of the second magnetic induction coils (17) is higher than the height of the first magnetic induction coils (16); an opening is provided on the I-shaped steel (14); and the opening and the second magnetic induction coils (17) are located at the same height.

3. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: A heat dissipation steel mesh (4) is fixedly connected to the middle of the serrated plastic shell, and the heat dissipation steel mesh (4) is a hole-shaped structure.

4. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: Upper steel grooves (22) are provided on both sides of the upper rotating shaft (20), and lower steel grooves (23) are provided on both sides of the lower rotating shaft (21), and the upper steel grooves (22) and the lower steel grooves (23) extend in an interlaced manner.

5. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: The control rod (5) is a hollow rod, and the steel strand (15) is located inside the control rod (5).

6. The hand-push floor polisher with an anti-mistake function according to claim 5, characterized in that: The two I-shaped steels (14) are hollow structures, the steel strands (15) pass through the top ends of the I-shaped steels (14) and are fixedly connected to the bottom ends of the I-shaped steels (14), and a movable pulley (9) is provided in the middle of the steel strands (15).

7. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: The slotted hole on the upper support plate (12) has a size smaller than the width of the upper end steel head of the I-shaped steel (14).

8. The hand-push floor polisher with an anti-mistake function according to claim 1, characterized in that: A gear (19) is fixedly connected to the upper rotating shaft, and generators (18) are matched on both sides of the gear (19). A battery (25) is matched outside the generator (18), and the battery (25) is externally connected to a display screen (24) and a power-on delay relay (26).

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