Wheel fixing mechanism of swimming pool robot

Abstract

The utility model discloses a swimming pool robot wheel fixing mechanism which comprises a bottom shell and a wheel, the wheel is connected with the bottom shell through a fork-shaped frame, the fork-shaped frame comprises a columnar inserting section extending upwards and a wheel frame which is forked and extends downwards, shaft holes are symmetrically formed in the lower end of the wheel frame, and the wheel is connected with the fork-shaped frame through a wheel shaft; the bottom shell is provided with a cylindrical inserting section, the cylindrical inserting section is in a hollow cylinder shape, the bottom shell is provided with a socket hole matched with the cylindrical inserting section, the cylindrical inserting section is inserted and fixed in the socket hole, a notch is formed in the middle of the cylindrical inserting section, a positioning protruding block is arranged on the side wall of the cylindrical inserting section, and a clamping groove matched with the positioning protruding block is formed in the inner wall of the socket hole. The fork-shaped frame structure can be prevented from shaking in the operation process of the machine, and the cleaning efficiency of the machine is improved.

Description

Technical Field

[0001] This utility model relates to a wheel fixing mechanism for a swimming pool robot, belonging to the field of cleaning robot technology. Background Technology

[0002] In existing technologies, the connection between the fork-shaped bracket securing the wheels of pool cleaning robots and the main structure generally employs a stepped snap-fit ​​design. This design utilizes elastic deformation to achieve rapid installation and disassembly by setting a stepped stepped snap-fit ​​between the bracket structure and the main body. While this solution offers significant advantages in assembly efficiency, it suffers from the following technical shortcomings that urgently require improvement:

[0003] First, the intermittent snap-fit ​​mechanism cannot achieve complete positioning of the fork-shaped frame: because the snap-fit ​​structure requires space for elastic deformation, a physical discontinuity exists at the connection between the frame and the main body. This structural characteristic makes the fork-shaped frame prone to slight displacement under stress, especially when the wheels are subjected to lateral loads or during machine operation; the gap at the discontinuity can cause the frame to loosen. Second, due to the discontinuity in the frame structure, the positioning is not entirely reliable, still causing some loosening. Furthermore, an excessively large opening angle at the positioning point can cause the machine to continuously rotate during operation, thus affecting the machine's cleaning efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the problems existing in the prior art and provide a wheel fixing mechanism for a pool robot, which can prevent the fork-shaped frame structure from shaking during machine operation and improve the cleaning efficiency of the machine.

[0005] To solve the above technical problems, this utility model provides a wheel fixing mechanism for a swimming pool robot, including a bottom shell and a wheel. The wheel is connected to the bottom shell through a fork-shaped frame. The fork-shaped frame includes an upwardly extending columnar insertion section and a forked wheel frame extending downward. The lower end of the wheel frame is symmetrically provided with axle holes. The wheel is fixed on the wheel axle, and both ends of the wheel axle are fixed in the axle holes of the wheel frame.

[0006] The columnar insertion section is a hollow cylinder. The bottom shell is provided with a socket hole that matches the columnar insertion section. The columnar insertion section is inserted into and fixed in the socket hole. The columnar insertion section is symmetrically provided with notches. Positioning protrusions are symmetrically provided on the outer wall of the columnar insertion section outside the notches. The inner wall of the socket hole is provided with a slot for the positioning protrusions to be inserted.

[0007] Furthermore, the root of the columnar insertion section is provided with an enlarged diameter fixing seat, and several reinforcing ribs extend from the outer peripheral wall of the fixing seat to the outer wall of the wheel frame.

[0008] Furthermore, the outer walls on both sides of the notch of the columnar insertion section are respectively provided with vertically extending reinforcing ribs.

[0009] Furthermore, the bottom of the socket of the bottom shell is provided with a relief groove that matches the reinforcing rib.

[0010] Furthermore, the positioning protrusion is a frustum, the slot is a radial hole, and the frustum is embedded in the radial hole and they match each other.

[0011] Furthermore, the outer ends of the frustum are respectively provided with chamfers.

[0012] Compared to existing technologies, this invention achieves the following beneficial effects: The invention uses a snap-fit ​​mechanism to securely fix the fork-shaped frame, effectively reducing potential swaying during operation and thus avoiding any impact on the wheel's trajectory. This improves the machine's operational posture, increases the cleaning area, and enhances cleaning efficiency. Attached Figure Description

[0013] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. The drawings are provided for reference and illustration only and are not intended to limit the present invention.

[0014] Figure 1 This is a perspective view of the bottom shell of the swimming pool robot in this utility model;

[0015] Figure 2 This is a perspective view of the assembly of the bottom shell and the wheel in this utility model;

[0016] Figure 3 This is a perspective view of the fork-shaped frame in this utility model;

[0017] Figure 4 This is a cross-sectional view of the fork-shaped frame assembled on the bottom shell in this utility model.

[0018] In the figure: 1. Bottom shell, 1a. Socket hole, 1a1. Radial hole, 1b. Clearance groove, 2. Fork-shaped frame, 2a. Columnar insertion section, 2a1. Notch, 2a2. Positioning protrusion, 2b. Wheel frame, 2b1. Shaft hole, 2c. Fixing seat, 2d. Reinforcing rib. Detailed Implementation

[0019] In the following description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., indicate the orientation or positional relationship 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, and do not mean that the device must have a specific orientation.

[0020] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below with reference to specific illustrations.

[0021] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention.

[0022] like Figures 1 to 4 As shown, this utility model aims to provide a wheel fixing mechanism for a swimming pool robot, including: a bottom shell 1 and a wheel. The wheel is connected to the bottom shell 1 through a fork-shaped frame 2. The fork-shaped frame 2 includes an upwardly extending columnar insertion section 2a and a forked wheel frame 2b extending downward. The lower end of the wheel frame 2b is provided with symmetrical shaft holes 2b1. The center of the wheel is fixed on the wheel axle, and both ends of the wheel axle are respectively fixed in the shaft holes 2b1 of the wheel frame 2b.

[0023] The cylindrical insertion section 2a is hollow cylindrical. The bottom shell 1 is provided with a socket 1a that matches the cylindrical insertion section 2a. The cylindrical insertion section 2a is inserted into and fixed in the socket 1a. The cylindrical insertion section 2a is provided with a notch 2a1 along the diameter line. The outer wall of the cylindrical insertion section 2a is symmetrically provided with positioning protrusions 2a2. The inner wall of the socket 1a is provided with a groove 1a1 that cooperates with the positioning protrusions 2a2.

[0024] The positioning protrusion 2a2 can be a frustum, and the slot 1a1 is a radial hole that matches the frustum. The outer end of the frustum is chamfered to facilitate insertion into the radial hole.

[0025] The columnar insertion section 2a has an enlarged diameter fixing seat 2c at its root. Multiple reinforcing ribs 2d are provided on the outer peripheral wall of the fixing seat 2c, with the lower end of each reinforcing rib 2d extending to the outer wall of the wheel frame 2b. Vertically extending reinforcing ribs 2d are provided on both sides of the notch 2a1 of the columnar insertion section 2a. The bottom of the socket 1a of the bottom shell 1 has a clearance groove 1b that matches the reinforcing ribs 2d. When the fork-shaped frame 2 is inserted into the socket 1a, the socket 1a compresses the columnar insertion section 2a, causing it to elastically deform towards the notch 2a1. This results in a snap-fit ​​engagement between the positioning protrusion 2a2 and the slot 1a1, completely limiting the fork-shaped frame 2. This makes the wheel drive mechanism run more smoothly, reducing the chance of spinning and improving cleaning coverage.

[0026] The above description is merely a preferred embodiment of the present utility model, showing and describing the basic principles, main features, and advantages of the present utility model. It is not intended to limit the scope of patent protection of the present utility model. Those skilled in the art should understand that the present utility model is not limited to the above embodiments. In addition to the above embodiments, the present utility model may have other implementations without departing from the spirit and scope of the present utility model. Various changes and improvements may also be made to the present utility model. All technical solutions formed by equivalent substitutions or equivalent transformations fall within the scope of protection claimed by the present utility model. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents. Technical features not described in the present utility model can be implemented by or using existing technology, and will not be elaborated here.

Claims

1. A wheel fixing mechanism of a pool robot, comprising a bottom shell and a wheel, the wheel being connected with the bottom shell through a fork-shaped frame, characterized in that: The fork comprises a columnar insertion section extending upwardly and a forked wheel frame extending downwardly, the lower end of the wheel frame is symmetrically provided with an axle hole, the wheel is fixed on an axle, and the two ends of the axle are fixed in the axle hole of the wheel frame; The columnar insertion section is in a hollow cylindrical shape, the bottom shell is provided with a socket hole matched with the columnar insertion section, the columnar insertion section is inserted and fixed in the socket hole, the columnar insertion section is symmetrically provided with a notch, the outer wall of the columnar insertion section outside the notch is symmetrically provided with a positioning protrusion, and the inner wall of the socket hole is provided with a clamping groove for embedding the positioning protrusion.

2. The pool robot of claim 1, wherein: The root of the columnar insertion section is provided with a fixed seat with an expanded diameter, and a plurality of reinforcing ribs extend from the outer peripheral wall of the fixed seat to the outer wall of the wheel frame.

3. The pool robot of claim 1, wherein: The outer walls on both sides of the notch of the columnar insertion section are respectively provided with vertically extending reinforcing ribs.

4. The pool robot of claim 2, wherein: The bottom of the socket hole of the bottom shell is provided with an avoiding groove matched with the reinforcing rib.

5. The pool robot of claim 1, wherein: The positioning protrusion is a circular truncated cone, the clamping groove is a radial hole, the circular truncated cone is embedded in the radial hole and matched with each other.

6. The pool robot of claim 5, wherein: The outer end of the circular truncated cone is respectively provided with a chamfered corner.

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