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Driving assembly of linear driver, linear driver and electric lifting seat

A technology of linear actuators and drive components, applied in children's chairs, household appliances, applications, etc., can solve the problems of less selectivity of upper and lower heights, high cost, and inconvenience, so as to avoid disorder and danger, and the lifting speed is reasonable The effect of matching, low manufacturing cost

Active Publication Date: 2022-05-10
CHANGZHOU KAIDI ELECTRICAL INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing industry, manually adjustable learning chairs are mainly fixed by screws or external clamping, which is time-consuming, laborious, inconvenient, and requires adult operation. At the same time, manual adjustment of the upper and lower heights has less options, which is not conducive to children of different ages. physical development needs
[0004] The existing Chinese patent CN113142867A discloses a seat back electric lifting learning chair, the seat surface and the backrest are respectively driven by two motor assemblies to move two sets of screw rods and screw nuts. This technical solution has a complex structure and is technically difficult. high cost

Method used

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  • Driving assembly of linear driver, linear driver and electric lifting seat
  • Driving assembly of linear driver, linear driver and electric lifting seat
  • Driving assembly of linear driver, linear driver and electric lifting seat

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] See Figure 1 to Figure 6 , the driving assembly 35 of a linear actuator in the present invention has a first round tube 354 , a second round tube 355 , a hollow screw 353 and a solid screw 351 nested sequentially from outside to inside.

[0055]The solid screw mandrel 351 is covered with a solid screw nut 356, and the solid screw nut 356 is fixed in the box body 352; the box body 352 is composed of two half boxes. Buckles and holes are provided on the box body 352, and the two half-boxes are fixedly connected by buckles and screws.

[0056] The hollow screw 353 is covered with a hollow screw nut 357, the hollow screw 353 is provided with a first spline groove 353a, one end of the hollow screw 353 is connected in the box 352 and rotates along the axis of the hollow screw 353; A clip spring 361 is provided on the hollow screw rod 353 , and a buffer ring 362 is provided between the clip spring 361 and the hollow screw rod nut 357 .

[0057] One end of the solid screw 35...

Embodiment 2

[0068] See Figure 10 , a linear driver 3, the present invention includes a motor assembly 33, an outer tube assembly 31, a middle tube assembly 32, and an inner tube assembly 34 nested sequentially from outside to inside, including the drive assembly 35 of the linear driver described in Embodiment 1.

[0069] See Figure 10 , the inner tube assembly 34 is rotatably connected to the solid screw rod 351 in the driving assembly 35, and the solid screw rod 351 expands and contracts synchronously. The middle pipe assembly 32 is fastened to the first round pipe 354 , and one end of the outer pipe assembly 31 is fastened to the second round pipe 355 . The output end of the motor assembly 33 is connected with the solid screw rod 351 and drives the solid screw rod 351 to rotate. The inner tube assembly 34 is firmly connected with the motor assembly 33 through the connecting plate 341 .

[0070] The effect achieved by this linear driver 3 is that the motor assembly 33 drives the sol...

Embodiment 3

[0072] See Figure 11 to Figure 13 , an electric lift seat, comprising a cushion assembly 1, a cushion assembly 2, a base assembly 4 and the linear actuator 3 in Embodiment 2; the base assembly 4 is fixedly connected to the inner tube assembly 34 of the linear actuator 3, and the cushion assembly 1 is connected to the linear actuator 3. The outer pipe assembly 31 of the driver 3 is fixedly connected, and the seat cushion assembly 2 is arranged under the cushion assembly 1 and is fixedly connected with the middle pipe assembly 32 of the linear driver 3 .

[0073] The base assembly 4 is provided with a groove for accommodating the motor assembly 33 , and an inclined installation surface is provided in the groove, and the linear driver 3 is fixed on the inclined installation surface of the base assembly 4 through the connecting plate 341 .

[0074] According to the design principle of the learning chair, as the child grows, the height of the child grows, and the depth of the seat...

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PUM

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Abstract

The invention belongs to the field of home furnishing, and particularly relates to a driving assembly of a linear driver, the linear driver and an electric lifting seat. Comprising a first round pipe, a second round pipe, a hollow lead screw and a solid lead screw which are sequentially nested from outside to inside. The solid lead screw is sleeved with a solid lead screw nut, and the solid lead screw nut is fixed in the box body. The hollow lead screw is sleeved with a hollow lead screw nut, a first spline groove is formed in the hollow lead screw, and one end of the hollow lead screw is connected into the box body and does rotary motion along the axis of the hollow lead screw. A connecting piece matched with the first spline groove is fixedly installed at one end of the solid lead screw. The connecting piece drives the hollow screw rod to rotate and slide in the hollow screw rod; the second circular tube is fixedly connected with a hollow screw nut, and an external spline is arranged outside the hollow screw nut; one end of the first circular pipe is fixedly connected with the box body; a second spline groove is formed in the first round pipe, and when the hollow lead screw rotates, the hollow lead screw nut is driven to slide in the second spline groove so as to drive the second round pipe to do linear motion.

Description

technical field [0001] The invention belongs to the field of home furnishing, and in particular relates to a drive assembly of a linear drive, a linear drive and an electric lifting seat. Background technique [0002] An electric linear actuator is a component that uses a motor as a drive element to convert rotary motion into linear motion. It is generally used in the fields of smart furniture and smart office furniture. Conventional electric linear actuators drive one nut to move for one screw. Later, due to the advancement of technology, double drive components or even multi-drive components have been produced, that is, multiple screw drives drive multiple nuts to move. However, the current linear actuators manufactured with dual-drive components or even multi-drive component structures as the core are relatively complex, with high manufacturing requirements and high manufacturing costs. [0003] Children's bodies are constantly growing, and learning desks and chairs tha...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47D1/00
CPCA47D1/004
Inventor 贲盛兴杜宁刘涛黄忠平
Owner CHANGZHOU KAIDI ELECTRICAL INC