Automatic locking device for control rod of scrubber

Abstract

The utility model discloses an automatic locking device for a control rod of a scrubber, which belongs to scrubber devices and comprises a scrubber main machine and the control rod, the lower end of the control rod is hinged with the scrubber main machine through a hinge component, and the control rod and the hinge component are correspondingly provided with an automatic locking mechanism. The automatic locking mechanism comprises a mounting seat fixedly connected with the control rod, a driving mechanism is arranged at the top end of the mounting seat, the driving end of the driving mechanism is connected with a connecting pin rod, and the driving mechanism drives the connecting pin rod to advance or retreat autonomously; the automatic locking mechanism is matched with the hinge assembly to automatically lock or unlock the rotation angle of the control rod and the floor washing main machine. The multi-degree-of-freedom angle adjusting device has the multi-degree-of-freedom angle adjusting and locking functions, and the operation difficulty is reduced.

Description

Technical Field

[0001] This utility model relates to floor scrubbing machine devices, and more particularly to an automatic locking device for the control lever of a floor scrubbing machine. Background Technology

[0002] With the technological iteration of intelligent cleaning equipment, floor scrubbers, with their integrated design of "scrubber cleaning + simultaneous vacuuming," are gradually becoming the mainstream product to replace traditional mopping tools. Existing floor scrubbers generally adopt a three-stage mechanical architecture of "floor scrubbing unit - joystick - handle." Their power transmission relies on the user applying linear thrust to the main unit through the joystick, and the direction of travel is adjusted by the hinge mechanism. The existing floor scrubbers have the following defects: (1) The single-axis hinge structure of the control stick and the main unit means that the direction of the thrust must be strictly parallel to the travel axis. Actual test data shows that when the deviation of the applied force direction exceeds 5°, the lateral torque reaches 0.8-1.2 N·m, which increases the probability of machine body deviation to more than 67%; (2) The difference in the lever arm formed by the control stick fulcrum and the center of gravity of the main unit means that the user needs to continuously apply a thrust of 12-15 N, and the difference in the center of gravity distribution between the clean water tank (usually located on the upper part of the control stick) and the wastewater tank makes the wrist torque load exceed 2.1 N·m / hour; (3) The hinge mechanism only provides a unidirectional rotational degree of freedom around the vertical axis, and cannot achieve adaptive tilting on inclined roads or multi-dimensional steering in narrow spaces. Utility Model Content

[0003] Technical problem solved: To address the technical problems of poor walking stability and difficult operation of existing floor scrubbers, this utility model provides an automatic locking device for the control lever of a floor scrubber, which has multi-degree-of-freedom adjustable angle and locking function, reducing the difficulty of operation.

[0004] Technical solution: The present invention provides an automatic locking device for a control lever of a floor scrubber. The floor scrubber includes a floor scrubber main unit and a control lever. The lower end of the control lever is hinged to the floor scrubber main unit through a hinge assembly. The control lever and the hinge assembly are respectively provided with an automatic locking mechanism.

[0005] The automatic locking mechanism includes a mounting base fixedly connected to the control lever. A drive mechanism is provided at the top of the mounting base. A connecting pin is connected to the drive end of the drive mechanism, and the drive mechanism drives the connecting pin to move forward or backward autonomously.

[0006] The automatic locking mechanism works in conjunction with the hinge assembly to automatically lock or unlock the rotation angle of the control lever and the floor scrubbing unit.

[0007] Preferably, the hinge assembly drives the control lever to perform angle adjustments relative to the floor scrubbing host in a first degree of automation and a second degree of freedom, with the rotation directions of the first degree of freedom and the second degree of freedom being perpendicular.

[0008] Preferably, the driving mechanism is a linear drive motor.

[0009] Preferably, the driving mechanism is a driving cylinder.

[0010] Preferably, a guide sleeve is provided at the lower end of the mounting base corresponding to the connecting pin, and a guide sliding cavity is provided inside the guide sleeve that extends into the mounting base. A connecting sleeve is slidably connected inside the guide sliding cavity. One end of the connecting sleeve is fixedly connected to the connecting pin, and the other end of the connecting sleeve is fixedly connected to the drive rod of the drive cylinder or linear drive motor through a connecting screw.

[0011] Preferably, the hinge assembly includes a first connecting end and a second connecting end respectively corresponding to the floor scrubbing main unit and the control lever; the first connecting end is hinged with a hinge member that rotates along a first degree of freedom, and the hinge member and the second connecting end achieve a second degree of freedom rotation through a hinge lug and a hinge end seat that are configured to cooperate.

[0012] Preferably, a connecting block is provided on the side of the first connecting end corresponding to the automatic locking mechanism, and a plurality of pin holes are opened on one side of the connecting block; the driving mechanism drives the connecting pin rod forward to insert into the corresponding pin hole to achieve locking; or the driving mechanism drives the connecting pin rod backward to disengage from the pin hole to achieve unlocking.

[0013] Preferably, the drive cylinder is provided with a compression chamber, and the drive rod of the drive cylinder is located in the compression chamber and connected to a piston body. A compression spring is fitted on the drive rod to support the piston body and the compression chamber.

[0014] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0015] This utility model features an automatic locking mechanism that works in conjunction with the hinge assembly. Through a linear drive motor or cylinder, it automatically and efficiently locks the control lever angle, reducing continuous wrist strain during floor cleaning and lowering the difficulty of operation. The locking function allows users to adjust to a comfortable operating angle and then lock it in place, significantly reducing fatigue during prolonged use and making operation more effortless. The control lever of this floor scrubber is flexible and effortless to operate. The multi-degree-of-freedom hinge assembly between the control lever and the main unit allows for multi-dimensional steering, making it particularly suitable for cleaning complex corners. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the floor scrubber of this utility model;

[0017] Figure 2 for Figure 1 A schematic diagram of the connection structure between the control lever and the main unit of the floor scrubber;

[0018] Figure 3 for Figure 2 A schematic diagram of the connection structure between the hinge assembly of the central control lever and the automatic locking mechanism;

[0019] Figure 4 for Figure 3 Main view of the automatic locking component structure;

[0020] Figure 5 for Figure 4 Top view of the automatic locking component structure;

[0021] Figure 6 for Figure 4 Cross-sectional view of the automatic locking assembly along its axial direction;

[0022] Figure 7 for Figure 2 Schematic diagram of the hinged assembly.

[0023] Reference numerals: 100, floor scrubber; 1, floor scrubber main unit; 2, control lever; 3, control handle; 4, hinge assembly; 41, first connecting end; 42, hinge piece; 43, hinge lug; 44, hinge end seat; 45, second connecting end; 46, connecting block; 47, pin hole; 5, mounting plate; 6, support base; 7, automatic locking mechanism; 71, mounting base; 72, guide sleeve; 73, connecting pin; 74, drive mechanism; 75, guide slide cavity; 76, connecting slide sleeve; 77, connecting screw; 78, compression cavity; 79, compression spring; 710, piston body; 711, drive rod. Detailed Implementation

[0024] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings. Figures 1-7 The technical solutions of the embodiments of this utility model are clearly and completely described below. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model. Example 1

[0025] like Figures 1-2 As shown, this utility model discloses an automatic locking device for the control lever of a floor scrubber. The floor scrubber 100 includes a main scrubber 1, a control lever 2, and a control handle 3. The control lever 2 adopts a profile structure with multiple through cavities to accommodate the installation of various pipelines. The control handle integrates control buttons such as water spraying, scrubbing, wastewater suction, locking, and unlocking, and uses existing technology to integrate and achieve its corresponding functions.

[0026] like Figures 3-5As shown, the lower end of the control lever 2 is hinged to the floor scrubbing unit 1 via a hinge assembly 4. The hinge assembly 4 drives the control lever 2 to perform angle adjustments relative to the floor scrubbing unit 1 in a first degree of automation and a second degree of freedom. The rotation directions of the first degree of freedom and the second degree of freedom are set perpendicularly. The control lever 2 and the hinge assembly 4 are correspondingly provided with an automatic locking mechanism 7. The automatic locking mechanism 7 cooperates with the hinge assembly to automatically lock or unlock the rotation angle between the control lever 2 and the floor scrubbing unit 1.

[0027] like Figure 7 As shown, the hinge assembly 4 includes a first connecting end 41 and a second connecting end 45 corresponding to the support base 6 and the control lever 2 respectively provided on the mounting plate 5; the first connecting end 41 is hinged to a hinge member 42 that rotates along the first degree of freedom, and the hinge member 42 and the second connecting end 45 achieve rotation of the second degree of freedom through the hinge lug 43 and the hinge end seat 44 that are configured to cooperate; the hinge assembly 4 with this configuration allows the control lever 2 to rotate at multiple angles relative to the mounting plate through the cooperation of the first degree of freedom and the second degree of freedom, thereby satisfying the cleaning of dead corners of the room floor by the floor scrubber and facilitating the steering control of the floor scrubber.

[0028] like Figures 4-5 As shown, the automatic locking mechanism 7 includes a mounting base 71 fixedly connected to the control lever 2. A drive mechanism 74 is provided at the top of the mounting base 71. The drive mechanism 74 is a linear drive motor. The drive end of the drive mechanism 74 is connected to a connecting pin 73, and the linear drive motor drives the connecting pin 73 to move forward or backward autonomously.

[0029] like Figure 7 As shown, a connecting block 46 is provided on the side of the first connecting end 41 corresponding to the drive mechanism 74. The connecting block 46 has multiple pin holes 47. The drive motor drives the connecting pin rod 73 forward so that it can be inserted into the pin hole 47, thereby realizing the fixed positioning of the control lever 2 relative to the floor cleaning host 1 at different angles along the first degree of freedom. The first degree of freedom refers to the rotation of the control lever 2 relative to the floor cleaning host 1 in the front-back direction, and the second degree of freedom refers to the rotation of the control lever 2 relative to the floor cleaning host 1 in the left-right direction. When the drive motor drives the connecting pin rod 73 backward so that the lower end of the connecting pin rod 73 disengages from the pin hole 47, the connection can be unlocked.

[0030] In Example 1, the floor cleaning unit 1 is equipped with a battery pack, which is electrically connected to and supplies power to the linear drive motor. Example 2

[0031] The difference from Embodiment 1 is that the drive mechanism 74 in this embodiment adopts a drive cylinder, which is connected to the air pump installed in the floor cleaning host 1. The air pump can inject compressed gas into the drive cylinder to drive the power output function of the cylinder, thereby driving the forward or backward movement of the connecting locking rod.

[0032] like Figure 6 As shown, a compression chamber 78 is provided inside the drive cylinder, and the drive rod 711 of the drive cylinder is located in the compression chamber 78 and connected to the piston body 710. A compression spring 79 is fitted on the drive rod 711 and supported between the piston body 710 and the compression chamber 78. When the air pump injects air, it can drive the piston body 710 to move forward along the compression chamber 78 by overcoming the compression spring 79, thereby driving the drive rod 711 to move forward. When the air pump stops supplying air, the compression spring 79 restores its elastic force and drives the piston body 710 to retract along the compression chamber 78, thereby driving the drive rod 711 to retract. Example 3

[0033] Based on Embodiment 1 and Embodiment 2, as Figure 4 and Figure 6 As shown, a guide sleeve 72 is provided at the lower end of the mounting base 71 corresponding to the connecting pin 73. A guide cavity 75 extending into the mounting base 71 is provided within the guide sleeve 72. A connecting sleeve 76 is slidably connected within the guide cavity 75. One end of the connecting sleeve 76 is fixedly connected to the connecting pin 73, and the other end of the connecting sleeve 76 is fixedly connected to the drive rod 711 of the drive cylinder or linear drive motor via a connecting screw 77. This configuration of the guide sleeve 72 and connecting sleeve 76 provides stable support for the connecting pin 73 and facilitates power transmission from the drive cylinder or linear drive motor.

[0034] The above are preferred embodiments of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. An automatic locking device for a control lever of a floor scrubber, the floor scrubber (100) comprising a floor scrubber main unit (1) and a control lever (2), the lower end of the control lever (2) being hinged to the floor scrubber main unit (1) via a hinge assembly (4), characterized in that: The control lever (2) and the hinge assembly (4) are respectively provided with an automatic locking mechanism (7); The automatic locking mechanism (7) includes a mounting base (71) fixedly connected to the control lever (2). A drive mechanism (74) is provided at the top of the mounting base (71). A connecting pin (73) is connected to the drive end of the drive mechanism (74), and the drive mechanism (74) drives the connecting pin (73) to move forward or backward autonomously. The automatic locking mechanism (7) works in conjunction with the hinge assembly to automatically lock or unlock the rotation angle of the control lever (2) and the floor scrubbing unit (1).

2. The automatic locking device for the control lever of a floor scrubber according to claim 1, characterized in that, The hinge assembly (4) drives the control lever (2) to make angle adjustments relative to the floor cleaning host (1) in the first degree of freedom and the second degree of freedom. The rotation directions of the first degree of freedom and the second degree of freedom are set perpendicularly.

3. The automatic locking device for the control lever of a floor scrubber according to claim 1, characterized in that, The drive mechanism (74) is a linear drive motor.

4. The automatic locking device for the control lever of a floor scrubber according to claim 1, characterized in that, The drive mechanism (74) is a drive cylinder.

5. The automatic locking device for the control lever of a floor scrubber according to claim 3 or 4, characterized in that, The lower end of the mounting base (71) is provided with a guide sleeve (72) corresponding to the connecting pin (73). The guide sleeve (72) is provided with a guide slide cavity (75) extending to the mounting base (71). A connecting slide sleeve (76) is slidably connected in the guide slide cavity (75). One end of the connecting slide sleeve (76) is fixedly connected to the connecting pin (73), and the other end of the connecting slide sleeve (76) is fixedly connected to the drive rod (711) of the drive cylinder or linear drive motor through a connecting screw (77).

6. The automatic locking device for the control lever of a floor scrubber according to claim 3 or 4, characterized in that, The hinge assembly (4) includes a first connecting end (41) and a second connecting end (45) respectively corresponding to the floor scrubbing host (1) and the control lever (2); the first connecting end (41) is hinged with a hinge member (42) that rotates along the first degree of freedom, and the hinge member (42) and the second connecting end (45) achieve the second degree of freedom rotation through a hinge lug (43) and a hinge end seat (44) that are configured to cooperate.

7. The automatic locking device for the control lever of a floor scrubber according to claim 6, characterized in that, The first connecting end (41) is provided with a connecting block (46) on the side corresponding to the automatic locking mechanism (7). A plurality of pin holes (47) are provided on one side of the connecting block (46). The driving mechanism (74) drives the connecting pin (73) to move forward and insert into the corresponding pin hole (47) to lock; or the driving mechanism (74) drives the connecting pin (73) to move backward and disengage from the pin hole (47) to unlock.

8. The automatic locking device for the control lever of a floor scrubber according to claim 5, characterized in that, The drive cylinder is provided with a compression chamber (78), and the drive rod (711) of the drive cylinder is located in the compression chamber (78) and connected to the piston body (710). A compression spring (79) is fitted on the drive rod (711) and supported between the piston body (710) and the compression chamber (78).

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