Lead screw rail lifting mechanism and sweeping robot

Abstract

The utility model relates to the technical field of floor sweeping robots, and discloses a screw rod track lifting mechanism and a floor sweeping robot, the screw rod track lifting mechanism comprises a machine shell, a driving block, a lifting assembly, a reset assembly and a driving assembly, the driving block is arranged at the top of the machine shell, the lifting assembly is used for lifting the driving block, and the reset assembly is used for resetting the driving block. The lifting assembly comprises a rolling shaft arranged on one side of the driving block, a sliding rail is arranged at the bottom of the rolling shaft, and the reset assembly is arranged at the bottom of the machine shell and used for resetting the driving block. According to the lead screw rail lifting mechanism, through the design of the rolling shaft, the sliding rail, the reset assembly and the driving assembly, when the lead screw rail lifting mechanism is used, the sliding rail is driven by the driving assembly to move, the rolling shaft is pushed by the sliding rail to move, and therefore lifting work is completed; therefore, the situation of unstable transmission caused by poor meshing of the gear and the gear on the rack during use is avoided, and the stability of the roller during operation is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of sweeping robot technology, and in particular to a lead screw track lifting mechanism and a sweeping robot. Background Technology

[0002] A robotic vacuum cleaner is an automated household cleaning device designed to reduce the burden of daily household cleaning. To adapt to different locations, robotic vacuum cleaners can achieve both sweeping and mopping modes as well as sweeping-only modes.

[0003] In existing technologies, the switching between sweeping and mopping modes and single sweeping mode is achieved by rotating gears to drive the rack and pinion, which in turn causes the roller to rise and fall. However, after prolonged use, if the gears on the rack and pinion do not mesh properly, unstable transmission will occur, leading to vibration and affecting the smoothness of the roller during operation. Utility Model Content

[0004] The main purpose of this utility model is to provide a lead screw track lifting mechanism and a sweeping robot, which aims to solve the technical problem in the prior art that when the gear and the gear on the rack mesh poorly, unstable transmission will occur, resulting in vibration, which will affect the smoothness of the roller during operation.

[0005] To achieve the above objectives, this utility model proposes a lead screw track lifting mechanism, comprising:

[0006] chassis;

[0007] A drive block is disposed on the top of the housing;

[0008] A lifting assembly for lifting a drive block, the lifting assembly including a roller disposed on one side of the drive block, and a slide rail disposed at the bottom of the roller;

[0009] A reset assembly is disposed at the bottom of the housing and is used to reset the block.

[0010] A drive assembly is disposed on the top of the housing and is used to move the position of the slide rail.

[0011] Furthermore, a slider is fixedly connected to the bottom of the slide rail, multiple limit switches are fixedly connected to the top of the housing, and a rotating component is provided at the connection between the drive block and the roller.

[0012] Furthermore, the driving component includes:

[0013] A drive block, which is fixedly connected to the top of the slider;

[0014] A lead screw, which is threadedly inserted into the middle of the drive block;

[0015] A rotating component is disposed at one end of a lead screw, and the rotating component is used to rotate the lead screw.

[0016] The limiting component is located on the top of the housing, where a fixing frame is provided.

[0017] Furthermore, the rotating member includes:

[0018] The first gear is fixedly connected to one end of the lead screw;

[0019] The second gear meshes with the top of the first gear;

[0020] The third gear meshes with the bottom of the second gear;

[0021] The motor is fixedly connected to the fixed frame, and the third gear is fixedly connected to the output end of the motor.

[0022] Furthermore, the limiting element includes a limiting rod fixedly connected to the top of the fixed frame, and the limiting rod is inserted through one side of the drive block.

[0023] Furthermore, a bearing is fixedly connected to the top of the fixed frame, and the lead screw is inserted into the middle of the bearing.

[0024] Furthermore, the reset component includes:

[0025] A drive rod is inserted and connected to the middle of the drive block.

[0026] A spring is disposed between the drive block and the housing.

[0027] Furthermore, the top of the housing has an insertion hole, and the drive rod is inserted and connected inside the insertion hole.

[0028] Furthermore, the rotating component includes a limiting groove formed on one side of the driving block, and the roller is inserted into the interior of the limiting groove.

[0029] A sweeping robot, the sweeping robot including the aforementioned lead screw track lifting mechanism.

[0030] Beneficial effects:

[0031] This utility model relates to a screw track lifting mechanism and a sweeping robot. Through the design of rollers, slide rails, reset components, and drive components, the drive components move the slide rails during use, and the slide rails in turn move the rollers to complete the lifting work. This avoids the transmission instability caused by poor meshing of the gears on the gear rack, thus ensuring the smooth operation of the rollers. Attached Figure Description

[0032] Figure 1 This is a structural schematic diagram of a sweeping robot according to an embodiment of the present invention;

[0033] Figure 2 This is a schematic diagram of the rolling part structure according to an embodiment of the present invention;

[0034] Figure 3 This is a side sectional view of the connection between the housing and the drive block according to an embodiment of the present invention;

[0035] Figure 4 This is an embodiment of the present utility model. Figure 3 Enlarged structural diagram of section A;

[0036] in:

[0037] 1-Housing; 2-Drive assembly; 201-First gear; 202-Second gear; 203-Third gear; 204-Fixed frame; 205-Motor; 206-Drive block; 207-Limiting rod; 208-Lead screw; 209-Bearing; 3-Lifting assembly; 301-Slider; 302-Limit switch; 303-Slide rail; 304-Roller; 4-Reset assembly; 401-Drive rod; 402-Spring; 5-Drive block; 6-Limiting groove.

[0038] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0039] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0040] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly and specifically defined.

[0041] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0043] Reference Figures 1 to 4 The first embodiment of this utility model provides a lead screw track lifting mechanism, including:

[0044] Casing 1;

[0045] Drive block 5, which is located on the top of housing 1;

[0046] Lifting component 3 is used to lift the driving block 5. The lifting component 3 includes a roller 304 disposed on one side of the driving block 5, and a slide rail 303 is disposed at the bottom of the roller 304.

[0047] Reset component 4 is located at the bottom of housing 1 and is used to reset block 5.

[0048] Drive component 2 is located on the top of housing 1 and is used to move the position of slide rail 303.

[0049] Specifically, a slider 301 is fixedly connected to the bottom of the slide rail 303, multiple limit switches 302 are fixedly connected to the top of the housing 1, and a rotating component is provided at the connection between the drive block 5 and the roller 304.

[0050] It should be noted that the side of the slide rail 303 closest to the roller 304 is inclined. When the roller 304 needs to be moved, the slider 301 is moved by the drive component 2. The slider 301 moves the slide rail 303 toward the roller 304 and pushes the roller 304 to move by the inclined surface of the slide rail 303. When the slide rail 303 moves to the point of separating from the roller 304, the roller 304 and the drive block 5 are reset by the reset component 4.

[0051] Specifically, component 2 includes:

[0052] Drive block 206 is fixedly connected to the top of slider 301;

[0053] The lead screw 208 is threadedly connected to the middle of the drive block 206;

[0054] A rotating component is provided at one end of the lead screw 208 and is used to rotate the lead screw 208.

[0055] The limiting component is a fixed frame 204 at the top of the housing 1, and the limiting component is located at the top of the fixed frame 204.

[0056] It should be noted that the limiting component is used to restrict the rotation of the drive block 206. When the position of the drive block 206 needs to be moved, the lead screw 208 is rotated by the rotating component. The rotating lead screw 208 drives the drive block 206, which is threaded to it and cannot rotate, to move.

[0057] Specifically, the rotating parts include:

[0058] The first gear 201 is fixedly connected to one end of the lead screw 208;

[0059] The second gear 202 meshes with the top of the first gear 201;

[0060] The third gear 203 meshes with the bottom of the second gear 202;

[0061] Motor 205 is fixedly connected to fixed frame 204, and third gear 203 is fixedly connected to the output end of motor 205.

[0062] It should be noted that the motor 205 is an existing servo motor, used to drive the third gear 203 to rotate in both directions during use. When the lead screw 208 is rotated, the motor 205 is turned on, which drives the third gear 203, which in turn drives the second gear 202 to rotate. The second gear 202 then drives the first gear 201 and the lead screw 208 to rotate. The limit switch 302 is electrically connected to the control terminal of the motor 205. When the slider 301 moves the slide rail 303 and touches the limit switch 302, the motor 205 is turned off through the limit switch 302. The rotation of the lead screw 208 can achieve linear motion of the slider 301. The external force driving the rotation of the lead screw 208 is not only the force of the motor 205, but can also be other external forces.

[0063] Specifically, the limiting component includes a limiting rod 207 fixedly connected to the top of the fixed frame 204, and the limiting rod 207 is inserted through one side of the drive block 206.

[0064] It should be noted that the number of limiting rods 207 is at least two, and the multiple limiting rods 207 are arranged in parallel. In use, the multiple limiting rods 207 are interlaced and connected to the drive block 206. The driving block 206 cannot rotate due to the restriction of the limiting rods 207.

[0065] Specifically, a bearing 209 is fixedly connected to the top of the fixed frame 204, and a lead screw 208 is inserted into the middle of the bearing 209.

[0066] Specifically, reset component 4 includes:

[0067] Drive rod 401 is inserted and connected to the middle of drive block 5.

[0068] Spring 402 is disposed between drive block 5 and housing 1.

[0069] Specifically, the top of the housing 1 has an insertion hole, and the drive rod 401 is inserted and connected inside the insertion hole.

[0070] It should be noted that the drive rod 401 is fixedly connected to the drive block 5, and the drive block 5 is connected to the roller through the drive rod 401, so that the drive rod 401 and the roller can move up and down by moving the position of the drive block 5; the spring 402 is set between the drive block 5 and the machine housing 1, and is used to pull the drive block 5 back to reset.

[0071] Specifically, the rotating component includes a limiting groove 6 formed on one side of the driving block 5, and a roller 304 is inserted into the inside of the limiting groove 6.

[0072] It should be noted that both the roller 304 and the limiting groove 6 are cylindrical, so that the two ends of the cylindrical roller 304 are inserted into the two limiting grooves 6 respectively. The two limiting grooves 6 restrict the movement of the roller 304 while allowing the roller 304 to rotate.

[0073] A second embodiment is a sweeping robot, including the lead screw track lifting mechanism of the first embodiment.

[0074] The above description is only a preferred embodiment of the present utility model and does not limit the patent scope of the present utility model. Any equivalent structural or procedural transformations made based on the content of the present utility model specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present utility model.

Claims

1. A lead screw and track lifting mechanism, characterized in that, include: Casing (1); Drive block (5), said drive block (5) is disposed on the top of housing (1); Lifting component (3), the lifting component (3) is used to lift the driving block (5), the lifting component (3) includes a roller (304) disposed on one side of the driving block (5), and a slide rail (303) is disposed at the bottom of the roller (304); Reset assembly (4), which is disposed at the bottom of housing (1), is used to drive block (5) to reset; A drive assembly (2) is disposed on the top of the housing (1) and is used to move the position of the slide rail (303).

2. The lead screw track lifting mechanism according to claim 1, characterized in that, The bottom of the slide rail (303) is fixedly connected to a slider (301), the top of the housing (1) is fixedly connected to multiple limit switches (302), and a rotating component is provided at the connection between the drive block (5) and the roller (304).

3. The lead screw track lifting mechanism according to claim 1, characterized in that, The driving component (2) includes: A drive block (206) is fixedly connected to the top of the slider (301); A lead screw (208) is threadedly connected to the middle of the drive block (206); A rotating component is disposed at one end of the lead screw (208), and the rotating component is used to rotate the lead screw (208); The limiting component is a fixed frame (204) provided at the top of the housing (1), and the limiting component is provided at the top of the fixed frame (204).

4. The lead screw track lifting mechanism according to claim 3, characterized in that, The rotating component includes: The first gear (201) is fixedly connected to one end of the lead screw (208); The second gear (202) meshes with the top of the first gear (201); A third gear (203) meshes with the bottom of a second gear (202); The motor (205) is fixedly connected to the fixed frame (204), and the third gear (203) is fixedly connected to the output end of the motor (205).

5. The lead screw track lifting mechanism according to claim 3, characterized in that, The limiting element includes a limiting rod (207) fixedly connected to the top of the fixed frame (204), and the limiting rod (207) is inserted through one side of the drive block (206).

6. The lead screw track lifting mechanism according to claim 3, characterized in that, The top of the fixed frame (204) is fixedly connected to a bearing (209), and the lead screw (208) is inserted into the middle of the bearing (209).

7. The lead screw track lifting mechanism according to claim 1, characterized in that, The reset component (4) includes: A drive rod (401) is inserted and connected to the middle of the drive block (5). A spring (402) is disposed between the drive block (5) and the housing (1).

8. The lead screw track lifting mechanism according to claim 7, characterized in that, The top of the housing (1) is provided with an insertion hole, and the drive rod (401) is inserted and connected inside the insertion hole.

9. The lead screw track lifting mechanism according to claim 2, characterized in that, The rotating component includes a limiting groove (6) formed on one side of the driving block (5), and the roller (304) is inserted into the inside of the limiting groove (6).

10. A sweeping robot, characterized in that, The sweeping robot includes the lead screw track lifting mechanism as described in any one of claims 1 to 9.

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