CN215125310U

CN215125310U - Lifting device and lifting tea table

Info

Publication number: CN215125310U
Application number: CN202121583473.0U
Authority: CN
Inventors: 戴成刚; 陈松
Original assignee: Zhongshan Jinwen Precision Hardware Products Co ltd
Current assignee: Zhongshan Jinwen Precision Hardware Products Co ltd
Priority date: 2021-07-12
Filing date: 2021-07-12
Publication date: 2021-12-14
Anticipated expiration: 2031-07-12

Abstract

The utility model provides a lifting device, including driving motor and output shaft, be connected the transmission through the gear assembly between driving motor and the output shaft, the gear assembly is including engaged with first gear, second gear and third gear in proper order, driving motor's output coupling has the drive gear with first gear engagement, the output coupling has the drive gear with third gear engagement, drive gear and the coaxial setting of output shaft, open the output of output shaft has the non-circular shaft hole. This elevating gear is different from traditional motor, worm and the two-level rotation mode of skewed tooth, has adopted high rotational speed low-power motor, and the motor external diameter diminishes, has also reduced the width of gear box, just can reduce the space of the how bottom installation motor gear box of former tea, saves tea table bottom material, reduces material cost.

Description

Lifting device and lifting tea table

[ technical field ] A method for producing a semiconductor device

The utility model relates to a lifting device and lift tea table.

[ background of the invention ]

At present, a lifting device on the market adopts the matching of a motor, helical teeth and a screw rod, and adopts a two-stage rotating mode to realize lifting output, but the lifting device adopting the scheme has the problems of overlarge motor size, overhigh cost and more occupied installation space.

For this reason, further improvements are necessary.

[ Utility model ] content

The utility model aims at overcoming the above problem, we provide a lifting device and lift tea table, and the whole cost of this lifting device is lower, whole small, does not occupy the installation space of tea table.

In order to achieve the above object, the utility model provides a lifting device, including driving motor and output shaft, be connected the transmission through the gear assembly between driving motor and the output shaft, the gear assembly is including the first gear, second gear and the third gear of meshing in proper order, driving motor's output shaft has connect the drive gear with first gear engagement, the output shaft has connect the drive gear with third gear engagement, drive gear and the coaxial setting of output shaft, open the output of output shaft has the non-circular shaft hole.

In one or more embodiments, the output shaft is disposed in a protective housing, and a travel switch is disposed in the protective housing.

In one or more embodiments, the travel switch includes a trigger portion and a micro switch that are engaged with each other, and the trigger portion is threadedly engaged with the output shaft.

In one or more embodiments, the gear assembly is disposed in a gear box, and the protective housing and the driving motor are both connected and fixed to the gear box by screws.

In one or more embodiments, the driving gear is a helical gear structure, and the first gear includes an upper straight tooth portion and a lower helical tooth portion.

In one or more embodiments, the shaft hole is one of a triangle, a rectangle, a pentagon and a hexagon.

The utility model also provides a lift tea table, this lift tea table include foretell elevating gear, and the lift tea table relies on this elevating gear's drive and realizes raising and lowering functions.

Because the utility model adopts the above technical scheme: this elevating gear is different from traditional motor, worm and the two-level rotation mode of skewed tooth, has adopted high rotational speed low-power motor, and the motor external diameter diminishes, has also reduced the width of gear box, just can reduce the space of the how bottom installation motor gear box of former tea, saves tea table bottom material, reduces material cost.

[ description of the drawings ]

Fig. 1 is a schematic structural view of a lifting device according to an embodiment of the present invention;

fig. 2 is a schematic view of an internal structure of a protective shell according to an embodiment of the present invention;

fig. 3 is a schematic view of an internal structure of a gear box according to an embodiment of the present invention.

[ detailed description ] embodiments

In order to deepen the understanding of the present invention, the present invention will be further described in detail with reference to the following embodiments and the attached drawings, and the embodiments are only used for explaining the present invention, and do not constitute the limitation to the protection scope of the present invention.

Referring to fig. 1-3, the present application provides a lifting device, including a driving motor 1 and an output shaft 2, the driving motor 1 and the output shaft 2 are connected for transmission through a gear assembly, the gear assembly includes a first gear 3, a second gear 4 and a third gear 5 which are engaged in sequence, an output shaft of the driving motor 1 is connected with a driving gear 6 engaged with the first gear 3, the driving gear 6 is of an oblique tooth structure, the first gear 3 includes an upper straight tooth portion and a lower oblique tooth portion, the lower oblique tooth portion is engaged with the driving gear 6, the adoption of the oblique tooth engagement has the advantages of good engagement, stable transmission and low noise, the output shaft 2 is connected with a transmission gear 7 engaged with the third gear 5, the transmission gear 7 is coaxially arranged with the output shaft 2, the transmission gear 7 is engaged with the third gear 5 through straight teeth, an output end of the output shaft 2 is provided with a non-circular shaft hole 8, specifically, the shaft hole 8 is one of a triangle, a rectangle, a pentagon and a hexagon, and the regular hexagon shaft hole is adopted in the actual fact.

In the embodiment, the first gear 3 and the second gear 4, the second gear 4 and the third gear 5, and the third gear 5 and the transmission gear 7 are all in straight tooth engagement, and the straight tooth engagement has the advantages of high bearing capacity and stable transmission.

Output shaft 2 is equipped with travel switch in locating a protective housing 9 in the protective housing 9, and is concrete, and travel switch is including the portion of triggering 10 and the micro-gap switch 11 that mutually support, and micro-gap switch 11 is provided with two, and two micro-gap switch intervals set up, and the distance between the micro-gap switch is stroke lift distance promptly, and portion of triggering 10 and output shaft 2 spiro union, the portion of triggering 10 stops after triggering micro-gap switch 11 through output shaft 2's rotation and linear motion, has seted up threaded structure on the output shaft 2.

In order to facilitate the protection and the installation of the gear assembly, the gear assembly is arranged in a gear case 12, the protective shell 9 and the driving motor 1 are fixedly connected with the gear case 12 through screws, and the gear assembly is fixedly connected through screws and has the advantages of easiness in installation and easiness in disassembly.

The utility model provides a lifting tea table, this god lifting tea table includes the elevating gear in above-mentioned embodiment, owing to adopted foretell elevating gear, can be used for installing this elevating gear without reserving too big installation space in lifting tea table bottom, saves space, save material.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiment, but all equivalent modifications or changes made by those skilled in the art according to the present invention should be included in the protection scope of the claims.

Claims

1. A lifting device comprises a driving motor (1) and an output shaft (2), and is characterized in that: the transmission is connected between the driving motor (1) and the output shaft (2) through a gear assembly, the gear assembly comprises a first gear (3), a second gear (4) and a third gear (5) which are meshed in sequence, the output shaft of the driving motor (1) is connected with a driving gear (6) meshed with the first gear (3), the output shaft (2) is connected with a transmission gear (7) meshed with the third gear (5), the transmission gear (7) and the output shaft (2) are coaxially arranged, and the output end of the output shaft (2) is provided with a non-circular shaft hole (8).

2. A lifting device as claimed in claim 1, characterized in that: the output shaft (2) is arranged in a protective shell (9), and a travel switch is arranged in the protective shell (9).

3. A lifting device as claimed in claim 2, characterized in that: the travel switch comprises a trigger part (10) and a microswitch (11) which are matched with each other, and the trigger part (10) is in threaded connection with the output shaft (2).

4. A lifting device as claimed in claim 2, characterized in that: the gear assembly is arranged in a gear box (12), and the protective shell (9) and the driving motor (1) are fixedly connected with the gear box (12) through screws.

5. A lifting device as claimed in any one of claims 1 to 4, characterized in that: the driving gear (6) is of a helical gear structure, and the first gear (3) comprises an upper straight tooth part and a lower helical tooth part.

6. A lifting device as claimed in any one of claims 1 to 4, characterized in that: the shaft hole (8) is one of a triangle, a rectangle, a pentagon and a hexagon.

7. A lifting tea table is characterized in that: comprising a lifting device according to any of claims 1-6.