Angle adjusting mechanism for operating handle of scrubber

Abstract

The invention discloses an angle adjusting mechanism for a scrubber operating handle, the angle adjusting mechanism comprises a scrubber body and a steering mechanism, the steering mechanism comprises two rotating stands sleeved with each other, the body of one rotating stand is fixedly connected with a rotating rod in a penetrating manner, and the outer surface of the rotating rod is rotatably connected with the body of the other rotating stand in a penetrating manner; a rotating shaft is fixedly connected to the outer surface of the other rotating frame, one end of the rotating shaft is rotationally connected with the outer surface of the scrubber body, a handle rod is fixedly connected to the body of one rotating frame in a penetrating mode, and the handle rod is hollow. The problems that a locking piece and an unlocking piece of an operating handle of an existing scrubber are both located at the rotary connecting position, so that during locking and unlocking, an operator needs to bend down repeatedly for operation, time and labor are wasted, the waist of the operator is prone to being injured, and meanwhile after unlocking, the operating handle is still flexible to rotate, and operation is not convenient are solved. Therefore, the problem that the scrubber cannot be stably operated during use is solved.

Description

Technical Field

[0001] The invention relates to the technical field of floor scrubbers, and in particular to an angle adjustment mechanism for an operating handle of a floor scrubber. Background Art

[0002] The floor scrubber is pushed by the user to move along the ground to clean the ground, but the connection of the operating handle of the existing floor scrubber is less mobile, which affects the stable operation of the human. The invention patent with application number CN201710230880.5 discloses a floor scrubber, including a body and an operating handle rod connected to the body at the lower part, the body includes a shell, and the locking device can unlock two locking units with one operation, and the unlocking is labor-saving and convenient.

[0003] Although the device has the above advantages, it still has the following defects in actual use: 1) The unlocking member and locking unit of the device are both arranged at the rotational connection between the operating handle rod and the housing of the floor scrubber, which requires the operator to repeatedly bend over to operate during the actual locking and unlocking process, making the locking and adjustment of the operating handle rod time-consuming and labor-intensive, and easily causing damage to the operator's waist.

[0004] 2) After the device is unlocked, the operating handle rod is still in a relatively flexible state, resulting in low stability of the operating handle rod during actual use, which is not conducive to stable operation.

[0005] Therefore, it is necessary to solve the problems that still exist in the above-mentioned device. Summary of the invention

[0006] In view of the deficiencies in the prior art, the present invention provides an angle adjustment mechanism for an operating handle of a floor scrubber, which solves the problem that the locking part and the unlocking part of the operating handle of the prior floor scrubber are both at a rotating connection, resulting in the operator needing to repeatedly bend over to operate when locking and unlocking, which is not only time-consuming and laborious but also easily causes waist injuries to the operator. At the same time, after unlocking, the operating handle can still rotate relatively flexibly, resulting in the problem that the floor scrubber cannot be stably operated when in use.

[0007] To achieve the above objectives, the present invention is implemented through the following technical solutions: an angle adjustment mechanism for a floor scrubber operating handle, comprising a floor scrubber body, A steering mechanism, the steering mechanism includes two mutually nested rotating frames, one of the rotating frames having a rotating rod fixedly connected thereto through the body of the rotating frame, the outer surface of the rotating rod being rotatably connected to the body of the other rotating frame, the outer surface of the other rotating frame being fixedly connected to a rotating shaft, one end of the rotating shaft being rotatably connected to the outer surface of the floor scrubber body, one of the rotating frames having a handlebar fixedly connected thereto through the body of the rotating frame, the handlebar being hollow, the outer surface of the rotating rod being fixedly connected thereto, the outer surface of the worm wheel being meshed with a worm, the body of the worm being movably connected thereto with a spiral rod, both ends of the spiral rod being fixedly connected to fixed plates, the outer surface of one of the fixed plates being fixedly connected to a cable, one end of the cable extending to the inside of the handlebar.

[0008] Preferably, the outer sleeve of the spiral rod is provided with a tension spring, the two ends of the tension spring are respectively movably connected to the outer surface of another fixed plate and the outer surface of the worm, the outer surface of the worm is rotatably connected to two support plates, and the outer surfaces of the two support plates are fixedly connected to the outer surface of another rotating frame.

[0009] Preferably, a guide assembly is provided on the outside of the cable, and the guide assembly includes two groups of fixed pulleys, the outer surfaces of the two groups of fixed pulleys are movably connected to the outer surface of the cable, the bodies of the two groups of fixed pulleys are penetrated and fixedly connected with fixed rods, the outer surfaces of the two groups of fixed rods are respectively fixedly connected to the outer surface of another rotating frame and the inside of the handle, and the outer surfaces of the two groups of fixed pulleys are movably connected with arc plates.

[0010] Preferably, the outer surfaces of the two groups of fixed pulleys are provided with annular grooves, the interior of the annular grooves is slidably connected with arc bars, the outer surface of the arc bars is fixedly connected to the outer surface of the arc plate, the body of the arc plate is provided with a through clamping groove, the interior of the clamping groove is movably connected to the outer surface of the cable.

[0011] Preferably, a winding assembly is provided on the outside of the cable, and the winding assembly includes a drum, the outer surface of the drum is wound around and connected to one end of the cable, the outer surface of the drum is rotatably connected to the inside of the handle, the body of the drum is penetrated and fixedly connected with a support rod, the end of the support rod is embedded and rotatably connected to the inside of the handle, the outer surface of the support rod is penetrated and fixedly connected with a rotating plate, the outside of the support rod is sleeved with a torsion spring, and the two ends of the torsion spring are respectively fixedly connected to the inside of the handle and the outer surface of the drum.

[0012] Preferably, a fixing ring is fixedly connected to the outer surface of the rotating plate, the fixing ring is coaxially arranged with the supporting rod, and an abutment groove is formed on the outer surface of the fixing ring.

[0013] Preferably, a card connection unit is provided on the outside of the rotating plate, and the card connection unit includes a card strip, and the outer surface of the card strip is movably connected to the handle bar, and the outer surface of the card strip is movably connected to a card block, and the outer surface of the card block is fixedly connected to the outer surface of the rotating plate, and the card block is arranged at equal angles on the arc surface of the rotating plate, and the outer surface of the card strip is slidably connected to a support bar, and the outer surface of the support bar is fixedly connected to the inside of the handle bar.

[0014] Preferably, the body of the clamping strip is provided with a through slot, the outer surface of the support strip is fixedly connected with a hook spring, and one end of the hook spring is fixedly connected to the outer surface of the clamping strip.

[0015] Preferably, a driving unit is provided on the outside of the rotating plate, and the driving unit includes two sliding rods, one ends of the two sliding rods are in contact with each other, the outer surfaces of the two sliding rods are fixedly connected to the body of the handle bar, and the other ends of the two handle bars are fixedly connected with a stop block, the outer surfaces of the stop blocks on both sides are movably connected to the inside of the through groove and the inside of the stop groove respectively, the outer surface of the sliding rod is slidably connected with a fixed tube, the outer surface of the solid tube is fixedly connected to the body of the handle bar, the outer surface of the sliding rod is fixedly connected with a pressure plate, the outer surface of the pressure plate is slidably connected to the inside of the solid tube, and the outer surface of the sliding rod is provided with a compression spring, and the two ends of the compression spring are fixedly connected to the inside of the solid tube and the outer surface of the pressure plate respectively.

[0016] Preferably, the outer surface of the slide rod is movably connected with a rotating tube, one end of the rotating tube is embedded and rotatably connected with the outer surface of the solid cylinder, the body of the rotating tube is provided with a through sliding groove, the interior of the sliding groove is slidably connected with a slider, the outer surface of the slider is fixedly connected to the outer surface of the slide rod, and the outer surface of the slider is clamped with one end of the rotating tube. Beneficial Effects

[0017] The present invention provides an angle adjustment mechanism for a floor scrubber operating handle. Compared with the prior art, it has the following beneficial effects: (1) By setting up a steering mechanism, the spiral rod is driven to reciprocate by using a cable and a tension spring, so that the worm rotates to drive the worm wheel and the rotating rod to rotate, so that the handle can be adjusted at multiple angles. After adjustment, the self-locking function of the worm wheel and the worm improves the stability of the handle on the operation of the floor scrubber body. The cable is used to extend the operation path, making the adjustment of the handle save time and effort, and there is no need for the operator to repeatedly bend over to operate.

[0018] (2) By setting up a guide assembly, the cable can be bent and adjusted using two sets of fixed pulleys to facilitate the rotation adjustment of the handlebar. At the same time, the connection between the arc plate and the clamping groove and the cable is used to improve the stability of the connection between the cable and the fixed pulley.

[0019] (3) By setting up a winding assembly and utilizing the drum to rotate and wind the cable, the angle of the handlebar can be adjusted. At the same time, the rebound of the torsion spring is utilized to release the tension of the winding, thereby facilitating the reverse reset of the handlebar.

[0020] (4) By providing a clamping unit, when the drum winds the cable, the clamping block and the side of the clamping strip are abutted against each other, so that the rotating plate supports the drum through the support rod. At the same time, when the clamping strip slides out of the clamping connection with the clamping block, the drum can be reversed to release the cable.

[0021] (5) By setting up a driving unit and utilizing the abutment between the slider and the rotating tube, the slide bar can remain stable and act as a handle. When the slider slides inside the slide groove, the abutment between the abutment block and the through groove or the abutment groove can drive the clamping strip or the fixed ring to move, thereby facilitating the release and stretching of the drum, or the fixed ring drives the drum to rotate through the rotating plate to wind the cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a three-dimensional diagram of the internal structure of the present invention; Figure 2 It is a stereoscopic diagram of the external structure of the worm of the present invention; Figure 3 It is a three-dimensional diagram of the external structure of the fixed pulley of the present invention; Figure 4 The external structure of the reel of the present invention is a three-dimensional diagram; Figure 5 This is a three-dimensional diagram of the external structure of the card strip of the present invention; Figure 6 It is a three-dimensional diagram of the external structure of the slide bar of the present invention.

[0023] In the figure: 1, floor scrubber body; 2, rotating frame; 3, rotating rod; 4, rotating shaft; 5, handlebar; 6, worm gear; 7, cable; 8, guide assembly; 81, fixed pulley; 82, fixed rod; 83, arc plate; 84, ring groove; 85, arc strip; 86, clamping groove; 9, winding assembly; 91, reel; 92, support rod; 93, rotating plate; 94, clamping unit; 941, clamping strip; 942, clamping block; 9 43. Support bar; 944. Through slot; 945. Hook spring; 95. Drive unit; 951. Slide rod; 952. Stop block; 953. Fixed tube; 954. Press plate; 955. Compression spring; 956. Rotating tube; 957. Slide slot; 958. Sliding block; 96. Torsion spring; 97. Fixed ring; 98. Stop slot; 10. Worm; 11. Screw rod; 12. Fixed plate; 13. Tension spring; 14. Support plate. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-6 The present invention provides a technical solution: an angle adjustment mechanism for a floor scrubber operating handle: Embodiment 1: It includes a floor scrubber body 1, which is made of an existing fully automatic floor scrubber, and the specific model is Stretch S, a steering mechanism, which includes two mutually nested rotating frames 2, a body of one of the rotating frames 2 is penetrated and fixedly connected with a rotating rod 3, the outer surface of the rotating rod 3 is penetrated and rotatably connected with the body of the other rotating frame 2, the outer surface of the other rotating frame 2 is fixedly connected with a rotating shaft 4, one end of the rotating shaft 4 is rotatably connected with the outer surface of the floor scrubber body 1, a body of one of the rotating frames 2 is penetrated and fixedly connected with a handle bar 5, the handle bar 5 is hollow, the outer surface of the rotating rod 3 is fixedly connected with a worm gear 6, the outer surface of the worm gear 6 is meshed with a worm 10, the meshing of the worm gear 6 and the worm 10 can facilitate the rotation and adjustment of the angle of the handle bar 5, and can improve the stability of the handle bar 5 through the self-locking function, the body of the worm gear 10 is penetrated and movably connected with a spiral rod 11, the spiral rod 11 and the worm 10 are engaged through the spiral abutment action, and the spiral rod 11 is axially engaged. When sliding, the worm 10 can be driven to rotate forward and backward. Both ends of the spiral rod 11 are fixedly connected with fixed plates 12, and the fixed plates 12 play a supporting role. As a preferred method, the other fixed plate 12 can be connected to the telescopic rod to improve the stability of the axial sliding of the spiral rod 11. The outer surface of one of the fixed plates 12 is fixedly connected with a cable 7, and one end of the cable 7 extends to the inside of the handle 5. The outside of the spiral rod 11 is sleeved with a tension spring 13, and the two ends of the tension spring 13 are respectively movably connected to the outer surface of the other fixed plate 12 and the outer surface of the worm 10. The outer surface of the worm 10 is penetrated and rotatably connected with two support plates 14. The connection between the support plate 14 and the worm 10 has axial limiting measures, and the two can be connected through bearings. The outer surfaces of the two support plates 14 are fixedly connected to the outer surface of the other rotating frame 2.

[0026] In this embodiment, when the operating angle of the handlebar 5 needs to be adjusted, the spiral rod 11 can be pulled to slide axially through the cable 7 and one of the fixed plates 12, and the other fixed plate 12 compresses the tension spring 13 to facilitate the resetting of the spiral rod 11. When the spiral rod 11 slides, it abuts against the worm 10 through the spiral, so that the worm 10 rotates on itself, and through the engagement of the worm 10 and the worm wheel 6, the worm wheel 6 drives the handlebar 5 to rotate and adjust the angle through the rotating rod 3 and one of the rotating frames 2. After the adjustment is completed, the handlebar 5 is fixed by the self-locking function of the worm wheel 6 and the worm 10, so as to facilitate the stable operation of the floor scrubber body 1.

[0027] Embodiment 2: A guide assembly 8 is provided on the outside of the cable 7, and the guide assembly 8 includes two sets of fixed pulleys 81. The connection between the fixed pulley 81 and the cable 7 can change the direction of the traction force of the cable 7, so as to facilitate the angle adjustment of the handlebar 5. The outer surfaces of the two sets of fixed pulleys 81 are movably connected to the outer surface of the cable 7. The bodies of the two sets of fixed pulleys 81 are fixedly connected with fixed rods 82. The outer surfaces of the two sets of fixed rods 82 are respectively fixedly connected to the outer surface of another rotating frame 2 and the inside of the handlebar 5. The outer surfaces of the two sets of fixed pulleys 81 are movably connected with arc plates 83, and the curvature of the arc plates 83 is consistent with the curvature of the side edges of the fixed pulleys 81. To adapt to the changes in the position of the cable 7, the outer surfaces of the two groups of fixed pulleys 81 are provided with annular grooves 84, and the inner sliding connection of the annular grooves 84 is provided with arc strips 85, and the cross-section of the arc strips 85 is T-shaped to improve the stability of the connection between the arc plate 83 and the fixed pulley 81. The outer surface of the arc strips 85 is fixedly connected to the outer surface of the arc plate 83, and the body of the arc plate 83 is provided with a through clamping groove 86. The inner chamfer of the clamping groove 86 is set to avoid scratching the cable 7, and through the connection with the cable 7, the stability of the connection between the cable 7 and the arc plate 83 is improved, and the inner part of the clamping groove 86 is movably connected to the outer surface of the cable 7.

[0028] In this embodiment, the arc plate 83 is connected to the cable 7 through the clamping groove 86, which improves the stability of the connection between the cable 7 and the fixed pulley 81. At the same time, when the cable 7 moves to drive the handle 5 to adjust the angle, the contact position between the cable 7 and the fixed pulley 81 changes accordingly, thereby driving the arc plate 83 to follow the movement. At the same time, the arc bar 85 follows the movement inside the annular groove 84, further improving the stability of the connection between the arc plate 83 and the cable 7 and the fixed pulley 81.

[0029] Embodiment 3: A winding assembly 9 is provided on the outside of the cable 7, and the winding assembly 9 includes a drum 91, the outer surface of the drum 91 is wound and connected with one end of the cable 7, and the spiral rod 11 can be axially moved by winding and releasing the cable 7, so as to adjust the angle of the handle 5, and the outer surface of the drum 91 is rotatably connected with the inside of the handle 5, and the body of the drum 91 is fixedly connected with a support rod 92, and the end of the support rod 92 is embedded and rotatably connected with the inside of the handle 5, and the outer surface of the support rod 92 is fixedly connected with a rotating plate 93, and the outer sleeve of the support rod 92 is provided with a torsion spring 96, the rebound of the torsion spring 96 can facilitate the reversal of the drum 91 to release the cable 7, the two ends of the torsion spring 96 are respectively fixedly connected to the inside of the handle 5 and the outer surface of the drum 91, the outer surface of the rotating plate 93 is fixedly connected with a fixed ring 97, the fixed ring 97 is coaxially arranged with the support rod 92, the outer surface of the fixed ring 97 is provided with a support groove 98, the support groove 98 is composed of an axial groove and an oblique groove, wherein a plurality of axial grooves are arranged at equal angles along the arc surface of the fixed ring 97, the oblique groove connects two adjacent axial grooves in series in sequence, and the series connection method is to connect the inner sides of the diagonals of the two adjacent axial grooves in series.

[0030] In this embodiment, the abutment groove 98 rotates through the oblique abutment action, so that the rotating plate 93 drives the drum 91 to rotate through the support rod 92 to realize the winding of the cable 7, thereby adjusting the angle of the handlebar 5. At the same time, the drum 91 rotates to compress the torsion spring 96, so that the torsion spring 96 rebounds and causes the drum 91 to reverse and release the cable 7.

[0031] Embodiment 4: A clamping unit 94 is provided on the outside of the rotating plate 93, and the clamping unit 94 includes a clamping strip 941, and one end of the clamping strip 941 is provided with a chamfered surface for oblique abutment. The outer surface of the clamping strip 941 is movably connected to the handlebar 5, and the outer surface of the clamping strip 941 is movably connected to a clamping block 942, and one end of the clamping block 942 is also provided with a chamfered surface. The chamfered surface of the clamping block 942 abuts against the chamfered surface of the clamping strip 941 to make the clamping strip 941 slide. At the same time, the two abut against the side planes to achieve locking of the reel 91, so as to maintain the stability of the handlebar 5 and the neatness of the cable 7, and avoid the disordered winding of the cable 7 affecting the adjustment of the angle. The outer surface of the clamping block 942 The surface is fixedly connected to the outer surface of the rotating plate 93, and the block 942 is set at an equal angle on the arc surface of the rotating plate 93. The outer surface of the clamping strip 941 is slidably connected with a support strip 943, and the outer surface of the support strip 943 is fixedly connected to the inside of the handle 5. The body of the clamping strip 941 is provided with a through groove 944, and the cross-section of the through groove 944 is trapezoidal. The clamping strip 941 is driven to slide by oblique abutment to disengage from the limiting support of the reel 91. The outer surface of the support strip 943 is fixedly connected with a hook spring 945. The hook spring 945 can facilitate the resetting of the clamping strip 941 through the elastic force to maintain the abutment against the reel 91. One end of the hook spring 945 is fixedly connected to the outer surface of the clamping strip 941.

[0032] In this embodiment, when the drum 91 winds the cable 7, the rotating plate 93 drives the clamping block 942 to rotate. During the movement of the clamping block 942, the clamping strip 941 abuts against the oblique cut surface of the clamping strip 941, so that the clamping strip 941 slides out of the abutment against the drum 91. At the same time, the clamping strip 941 stretches the hook spring 945 during movement. When the drum 91 finishes winding the cable 7, the hook spring 945 rebounds to reset the clamping strip 941. The clamping strip 941 abuts against the side plane of the clamping block 942 to limit the abutment against the drum 91 again.

[0033] Embodiment 5: A driving unit 95 is disposed outside the rotating plate 93. The driving unit 95 includes two sliding rods 951. The parts of the two sliding rods 951 outside the handlebar 5 are U-shaped and can act as anti-slip handles. One ends of the two sliding rods 951 fit each other. The outer surfaces of the two sliding rods 951 are fixedly connected to the body of the handlebar 5. The other ends of the two handlebars 5 are fixedly connected with a stop block 952. The stop blocks 952 on both sides are respectively trapezoidal plates and columnar rods, and are respectively adapted to the dimensions of the through slot 944 and the inside of the stop slot 98. When the block 952 of the cylindrical rod moves inside the groove 98, when it slides inside the oblique groove, it pushes the fixed ring 97 to rotate through the oblique abutment. When it slides inside the axial groove, it can perform reverse movement and reset. The outer surfaces of the blocks 952 on both sides are respectively movably connected with the inside of the through groove 944 and the inside of the groove 98. The outer surface of the slide rod 951 is slidably connected with a fixed cylinder 953, which plays a supporting and limiting role. The outer surface of the fixed cylinder 953 is fixedly connected with the body of the handle 5. The outer surface is fixedly connected with a pressure plate 954, which plays a supporting and limiting role. The outer surface of the pressure plate 954 is slidably connected to the inside of the fixed tube 953. The outer surface of the slide bar 951 is sleeved with a compression spring 955, which can facilitate the sliding reset of the slide bar 951 by rebounding. The two ends of the compression spring 955 are respectively fixedly connected to the inside of the fixed tube 953 and the outer surface of the pressure plate 954. The outer surface of the slide bar 951 is movably connected with a rotating tube 956, and the connection between the rotating tube 956 and the fixed tube 953 is provided with a rotation limiting measure, as well as a A rotation damping measure is provided, and the stability of the slide bar 951 is further improved by clamping with the slider 958. One end of the rotating tube 956 is embedded and rotatably connected with the outer surface of the fixed tube 953. The body of the rotating tube 956 is provided with a through slide groove 957. The connection between the slide groove 957 and the slider 958 facilitates the sliding of the slide bar 951. The slide groove 957 is internally slidably connected with the slider 958. The outer surface of the slider 958 is fixedly connected to the outer surface of the slide bar 951, and the outer surface of the slider 958 is clamped with one end of the rotating tube 956.

[0034] In this embodiment, when the slide bar 951 is required to drive the clamping strip 941 or the drum 91 to move through the stop block 952, the rotating tube 956 is first rotated to align the slide groove 957 thereon with the slider 958, and then the slide bar 951 is pressed, and the slider 958 slides inside the slide groove 957, so that the slide bar 951 drives the corresponding stop block 952 to slide, and through the contact between the stop block 952 and the through groove 944 or the stop groove 98, the clamping strip 941 and the fixed ring 97 move, and when the slide bar 951 slides, it drives the pressure plate 954 to slide synchronously, and compresses the compression spring 955, so as to facilitate the movement reset of the slide bar 951, so as to continuously drive the drum 91 to rotate and wind the cable 7, thereby facilitating the connection and adjustment of the angle of the handlebar 5.

[0035] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0036] 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. An angle adjustment mechanism for a floor scrubber operating handle, comprising a floor scrubber body (1), characterized in that: A steering mechanism, the steering mechanism comprising two mutually nested rotating frames (2), wherein a rotating rod (3) is fixedly connected to the body of one of the rotating frames (2), the outer surface of the rotating rod (3) is rotatably connected to the body of the other rotating frame (2), the outer surface of the other rotating frame (2) is fixedly connected to a rotating shaft (4), one end of the rotating shaft (4) is rotatably connected to the outer surface of the floor scrubber body (1), a handle bar (5) is fixedly connected to the body of one of the rotating frames (2), the handle bar (5) is hollow, a worm wheel (6) is fixedly connected to the outer surface of the rotating rod (3), a worm (10) is meshed on the outer surface of the worm wheel (6), a spiral rod (11) is movably connected to the body of the worm (10), both ends of the spiral rod (11) are fixedly connected to fixed plates (12), a cable (7) is fixedly connected to the outer surface of one of the fixed plates (12), one end of the cable (7) extends to the inside of the handle bar (5).

2. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 1, characterized in that: The outer sleeve of the spiral rod (11) is provided with a tension spring (13), and the two ends of the tension spring (13) are respectively movably connected to the outer surface of another fixed plate (12) and the outer surface of the worm (10), and the outer surface of the worm (10) is rotatably connected to two support plates (14), and the outer surfaces of the two support plates (14) are fixedly connected to the outer surface of another rotating frame (2).

3. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 1, characterized in that: A guide assembly (8) is arranged outside the cable (7), and the guide assembly (8) comprises two groups of fixed pulleys (81), the outer surfaces of the two groups of fixed pulleys (81) are movably connected to the outer surface of the cable (7), the bodies of the two groups of fixed pulleys (81) are penetrated and fixedly connected with fixed rods (82), the outer surfaces of the two groups of fixed rods (82) are respectively fixedly connected to the outer surface of another rotating frame (2) and the inside of the handlebar (5), and the outer surfaces of the two groups of fixed pulleys (81) are movably connected with arc plates (83).

4. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 3, characterized in that: The outer surfaces of the two groups of fixed pulleys (81) are both provided with an annular groove (84), the interior of the annular groove (84) is slidably connected with an arc bar (85), the outer surface of the arc bar (85) is fixedly connected to the outer surface of the arc plate (83), the body of the arc plate (83) is provided with a through clamping groove (86), the interior of the clamping groove (86) is movably connected to the outer surface of the cable (7).

5. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 1, characterized in that: A winding assembly (9) is arranged outside the cable (7), and the winding assembly (9) comprises a drum (91), the outer surface of the drum (91) is wound and connected with one end of the cable (7), the outer surface of the drum (91) is rotatably connected with the inside of the handlebar (5), a support rod (92) is passed through and fixedly connected to the body of the drum (91), the end of the support rod (92) is embedded and rotatably connected with the inside of the handlebar (5), a rotating plate (93) is passed through and fixedly connected to the outer surface of the support rod (92), and a torsion spring (96) is sleeved on the outside of the support rod (92), and the two ends of the torsion spring (96) are respectively fixedly connected to the inside of the handlebar (5) and the outer surface of the drum (91).

6. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 5, characterized in that: A fixing ring (97) is fixedly connected to the outer surface of the rotating plate (93); the fixing ring (97) is coaxially arranged with the support rod (92); and an abutment groove (98) is formed on the outer surface of the fixing ring (97).

7. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 6, characterized in that: A clamping unit (94) is arranged outside the rotating plate (93), and the clamping unit (94) comprises a clamping strip (941), the outer surface of the clamping strip (941) is movably connected to the handlebar (5), the outer surface of the clamping strip (941) is movably connected to a clamping block (942), the outer surface of the clamping block (942) is fixedly connected to the outer surface of the rotating plate (93), the clamping block (942) is arranged at equal angles on the arc surface of the rotating plate (93), the outer surface of the clamping strip (941) is penetrated by a support strip (943) in sliding connection, and the outer surface of the support strip (943) is fixedly connected to the inside of the handlebar (5).

8. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 7, characterized in that: The body of the clamping strip (941) is provided with a through slot (944), the outer surface of the support strip (943) is fixedly connected with a hook spring (945), and one end of the hook spring (945) is fixedly connected to the outer surface of the clamping strip (941).

9. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 7, characterized in that: A driving unit (95) is disposed outside the rotating plate (93), and the driving unit (95) includes two sliding rods (951), one end of the two sliding rods (951) is in contact with each other, the outer surfaces of the two sliding rods (951) are both fixedly connected to the body of the handle bar (5), and the other ends of the two handle bars (5) are both fixedly connected to a stop block (952), and the outer surfaces of the stop blocks (952) on both sides are movably connected to the inside of the through groove (944) and the inside of the stop groove (98), respectively. The outer surface of the handlebar (51) is slidably connected with a fixed tube (953), the outer surface of the fixed tube (953) is fixedly connected with the body of the handlebar (5), the outer surface of the slide bar (951) is fixedly connected with a pressure plate (954), the outer surface of the pressure plate (954) is slidably connected with the inside of the fixed tube (953), and the outer surface of the slide bar (951) is sleeved with a compression spring (955), and the two ends of the compression spring (955) are respectively fixedly connected with the inside of the fixed tube (953) and the outer surface of the pressure plate (954).

10. The angle adjustment mechanism for the operating handle of a floor scrubber according to claim 9, characterized in that: The outer surface of the slide rod (951) is movably connected to a rotating tube (956), one end of the rotating tube (956) is embedded and rotatably connected to the outer surface of the fixed tube (953), the body of the rotating tube (956) is provided with a through sliding groove (957), the interior of the sliding groove (957) is slidably connected to a slider (958), the outer surface of the slider (958) is fixedly connected to the outer surface of the slide rod (951), and the outer surface of the slider (958) is clamped to one end of the rotating tube (956).

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