CN210951459U

CN210951459U - Lifting system's limit structure and range hood

Info

Publication number: CN210951459U
Application number: CN201921937845.8U
Authority: CN
Inventors: 左伟; 秦星星; 苏鸿基
Original assignee: Zhongshan Weishi Gas Electric Appliance Co ltd
Current assignee: Zhongshan Weishi Gas Electric Appliance Co ltd
Priority date: 2019-11-12
Filing date: 2019-11-12
Publication date: 2020-07-07
Anticipated expiration: 2029-11-12

Abstract

The utility model provides a lift system's limit structure, including elevating gear and two at least slider, the slider symmetry set up in elevating gear's both sides, elevating gear is lead screw elevation structure, slider sets up on a slider be provided with spacing gyro wheel on one side of slider, it is spacing to form through the cooperation of slider and spacing gyro wheel, avoids lift system to rock after a left side in the motion process. The utility model also provides a range hood.

Description

Lifting system's limit structure and range hood

Technical Field

The utility model relates to a lift system's limit structure and range hood.

Background

With the progress and development of science and technology, the range hood capable of automatically lifting is widely applied, but the existing part of the range hood is easy to shake left and right in the lifting process, so that the use is influenced, and bad use feeling is brought to users.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the weak point in the prior art, providing a operating system's limit structure, aim at solving the problem of operating about the operating system.

In order to achieve the above purpose, the utility model adopts the following scheme:

the utility model provides a lift system's limit structure, includes elevating gear and two at least slider, the slider symmetry set up in elevating gear's both sides, elevating gear is lead screw elevation structure, slider sets up on a slider be provided with spacing gyro wheel on one side of slider, it is spacing to form through the cooperation of slider and spacing gyro wheel, avoids lift system to rock after a left side in the motion process.

In one or more embodiments, the limiting roller is provided with an upper roller and a lower roller, and the upper roller and the lower roller are connected together through a connecting piece.

In one or more embodiments, the lifting device is provided with a driving motor, a screw rod and a telescopic rod, the driving motor drives the screw rod to rotate, the screw rod is rotationally matched with the internal thread of the telescopic rod to realize rotation, the telescopic rod is externally matched with the shell to limit to prevent the telescopic rod from rotating, and therefore ascending and descending motion is realized.

In one or more embodiments, the driving motor and the screw rod are matched through a reduction box or the driving motor and the screw rod are matched through a worm and gear.

In one or more embodiments, the sliding device interferes with the limiting block, so that limiting is achieved.

In one or more embodiments, the lifting device is provided with a casing, the screw rod and the telescopic rod are arranged in the casing, the casing is provided with a limiting groove, and the telescopic rod is provided with a protrusion matched with the limiting groove.

In one or more embodiments, the sliding device includes a sliding rail and a sliding bar, the sliding rail is connected to the fixing plate, the sliding bar is connected to the sliding block, and the sliding block moves along the length direction of the sliding rail under the driving of the lifting device.

A range hood comprises the limit structure of the lifting system.

Has the advantages that: the utility model provides a lift system's limit structure forms spacingly through the cooperation of slider and spacing gyro wheel, avoids lift system to rock in the motion process left back.

Drawings

Fig. 1 is a schematic structural view of a limit structure and a range hood of an embodiment of the present invention.

Fig. 2 is a schematic structural diagram of a limiting structure of an elevating system according to the present invention.

Fig. 3 is a schematic view of an internal structure of a lifting mechanism of a lifting system according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of a part of the lifting mechanism of the limiting structure of the lifting system according to the embodiment of the present invention.

Detailed Description

The application scheme is further described below with reference to the accompanying drawings:

example (b):

referring to fig. 1-4, a limiting structure of a lifting system comprises a lifting device 1 and at least two sliding devices 2, wherein the sliding devices 2 are symmetrically arranged on two sides of the lifting device 1, the lifting device 1 is a screw lifting structure, the sliding devices 2 are arranged on a sliding block 4, and a limiting roller 3 is arranged on one side of the sliding block 4.

Further, the limiting roller 3 is provided with an upper roller 31 and a lower roller 32, and the upper roller 31 and the lower roller 32 are connected together through a connecting piece 33.

Further, the lifting device is provided with a driving motor 11, a screw rod 12 and an expansion rod 14, the driving motor 11 drives the screw rod 12 to rotate, the screw rod 12 is in running fit with internal threads of the expansion rod 14 to achieve rotation, the expansion rod 14 is in external fit with a shell 15 to limit to prevent the expansion rod 14 from rotating, and therefore ascending and descending movement is achieved.

Further, the driving motor 11 and the screw rod 12 are matched through a reduction box or the driving motor 11 and the screw rod are matched through a worm and gear.

Further, the screw rod 12 is welded or screwed or hooked with one end of the telescopic rod 14.

Further, the lifting device 1 is provided with a casing 15, the screw rod and the telescopic rod 14 are arranged in the casing 15, a limiting groove 151 is arranged on the casing 15, and a protrusion 131 matched with the limiting groove 151 is arranged on the lifting nut 13.

Further, the sliding device 2 comprises a sliding rail 21 and a sliding bar 22, the sliding rail 21 is connected with the fixing plate, the sliding bar 22 is connected with the sliding block 4, and the sliding block 4 moves along the length direction of the sliding rail 21 under the driving of the lifting device 1.

A range hood comprises the limit structure of the lifting system.

The above preferred embodiments should be considered as examples of the embodiments of the present application, and technical deductions, substitutions, improvements and the like similar to, similar to or based on the embodiments of the present application should be considered as the protection scope of the present patent.

Claims

1. The utility model provides a spacing structure of operating system, its characterized in that includes elevating gear and two at least slider, the slider symmetry set up in elevating gear's both sides, elevating gear is lead screw elevation structure, slider sets up on a slider be provided with spacing gyro wheel on a side of slider.

2. The limit structure of a lifting system according to claim 1, wherein the limit roller is provided with an upper roller and a lower roller, and the upper roller and the lower roller are connected together through a connecting member.

3. The limit structure of a lifting system according to claim 1, wherein the lifting device is provided with a driving motor, a screw rod and a telescopic rod, the driving motor drives the screw rod to rotate, the screw rod is rotatably matched with the internal thread of the telescopic rod to realize rotation, the telescopic rod is externally matched with the machine shell to limit so as to prevent the telescopic rod from rotating, and therefore ascending and descending motion is realized.

4. The limiting structure of the lifting system according to claim 3, wherein the driving motor is matched with the screw rod through a reduction gearbox or the driving motor is matched with the screw rod through a worm and gear.

5. The limit structure of a lifting system according to claim 3, wherein the sliding means interferes with the limit block, thereby achieving the limit.

6. The limit structure of a lifting system according to claim 3, wherein the lifting device is provided with a casing, the screw rod and the telescopic rod are arranged in the casing, the casing is provided with a limit groove, and the telescopic rod is provided with a protrusion matched with the limit groove.

7. The limiting structure of claim 1, wherein the sliding device comprises a sliding rail and a sliding bar, the sliding rail is connected with the fixing plate, the sliding bar is connected with a sliding block, and the sliding block moves along the length direction of the sliding rail under the driving of the lifting device.

8. A range hood, characterized by comprising the limit structure of the lifting system of any one of claims 1 to 6.