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CN-122004612-A - Electric pushing type seat and lumbar support electric pushing method

CN122004612ACN 122004612 ACN122004612 ACN 122004612ACN-122004612-A

Abstract

The invention aims at least solving the defect of the lumbar support adjusting structure in the existing office furniture field, and provides an electric pushing type seat and a lumbar support electric pushing method, which are convenient for the installation of driving components and the adjustment of lumbar supports. The electric push type seat comprises a back frame, an upper frame and a lumbar support, wherein the upper frame and the lumbar support are movably connected, the lumbar support comprises a mounting part, a back support and an electric push rod, the electric push rod comprises an output end and a body arranged on the mounting part, and the body is hinged with the mounting part. The device comprises a first connecting rod, a track limiting structure and a mounting part, wherein the two ends of the first connecting rod are respectively hinged with an output end and a connecting seat, the track limiting structure is connected with the hinged position of the first connecting rod and the output end, the supporting angle of the lumbar support can be flexibly adjusted according to requirements through a driving mode of an electric push rod to form different massage modes, the lumbar support functions are enriched, and the main body of the linear driver can be directly mounted on the lumbar support through the arrangement of the mounting part, so that the mounting efficiency is high and convenient.

Inventors

  • YOU ZHAOGEN
  • PANG ZHIFENG
  • HAN JIANRUI

Assignees

  • 佛山市零动创想科技有限公司

Dates

Publication Date
20260512
Application Date
20260210

Claims (10)

  1. 1. An electric push chair, comprising: the back frame (100) comprises an upper frame (120) and a lumbar support (110) which are arranged up and down, wherein the upper frame (120) and the lumbar support (110) can be movably connected, and the lumbar support (110) comprises an installation part (112); a back support (200) connected with the upper frame (120), wherein the back support (200) is provided with a connecting seat (210); the electric push rod (300) comprises an output end (320) and a body (310) arranged on the mounting part (112), wherein the body (310) is hinged with the mounting part (112). The two ends of the first connecting rod (400) are respectively hinged with the output end (320) and the connecting seat (210); A track limiting structure (500) for connecting the hinge of the first connecting rod (400) and the output end (320), wherein the track limiting structure (500) is used for limiting the movement track of the hinge of the first connecting rod (400) and the output end (320); The electric push rod (300) is used for driving the lumbar support (110) to move close to and away from the back support (200), and the electric push rod (300) is used for driving the lumbar support (110) to swing relative to the upper frame (120).
  2. 2. The push chair according to claim 1, wherein the track defining structure (500) comprises: the hinge shaft (510) is arranged at the hinge position of the first connecting rod (400) and the output end (320); and a first guide groove (520) provided in the mounting portion (112), wherein in an upright state, the extending track of the first guide groove (520) has a displacement in the horizontal direction, and a portion of the hinge shaft (510) is provided in the first guide groove (520) and is capable of sliding along the extending track of the first guide groove (520).
  3. 3. The push chair according to claim 2, wherein the first guide groove (520) is a straight chute, and in an upright state, an extending track of the first guide groove (520) extends obliquely downward from front to rear.
  4. 4. A push chair according to claim 3, wherein the angle between the direction of movement of the output end (320) and the direction of extension of the first link (400) is set to a, the angle between the direction of extension of the first link (400) and the direction of extension of the first guide slot (520) is set to B, the position of the hinge shaft (510) at the front end of the first guide slot (520) is set to a front position in an upright state, and the position of the hinge shaft (510) at the rear end of the first guide slot (520) is set to a rear position; the front position A is [50 degrees, 70 degrees ] ], the front position B is [5 degrees, 25 degrees ] ], the rear position A is [70 degrees, 90 degrees ] ], and the rear position B is [35 degrees, 55 degrees ] ].
  5. 5. The push chair according to any one of claims 1 to 4, wherein the rear end of the mounting portion (112) is provided with a first mounting groove (113), and the body (310) is hingedly mounted in the first mounting groove (113).
  6. 6. The push-on seat according to any one of claims 1 to 4, wherein a first connecting member (121) extends downwards from the bottom of the upper frame (120), a second connecting member (111) extends upwards from the top of the lumbar support (110), and the first connecting member (121) and the second connecting member (111) are hinged; The first connecting piece (121) and the second connecting piece (111) are sleeved with elastic wrapping pieces (130); The outer surfaces of the bottom of the upper frame (120), the elastic coating member (130) and the top of the lumbar support (110) are smoothly transited.
  7. 7. The electric push chair according to any one of claims 1 to 4, wherein the upper frame (120) is movably connected with the back support (200) in a lifting manner, one of the upper frame (120) and the back support (200) is provided with a second mounting groove (610), the other one of the upper frame and the back support is provided with a stop block (620), the stop block (620) is positioned in the second mounting groove (610), a return elastic member (630) is arranged between the stop block (620) and the inner wall of the second mounting groove (610), and the return elastic member (630) is used for returning the upper frame (120) and the back support (200) which generate relative displacement.
  8. 8. The push chair of any one of claims 1 to 4, further comprising: A cushion plate (710) and a cushion bracket (720) which are arranged up and down, wherein the cushion bracket (720) is hinged with the back bracket (200); The back support (200) is hinged with a connecting seat (210), one end of the second connecting rod (800) is hinged with the connecting seat (210), and the other end of the second connecting rod (800) is hinged with the cushion plate (710) and the cushion support (720).
  9. 9. The electric push seat according to claim 8, wherein the other end of the second link (800) is connected to the rear ends of the cushion plate (710) and the cushion bracket (720), the front ends of one of the cushion plate (710) and the cushion bracket (720) are provided with second guide grooves (730), the front ends of the other of the cushion plate (710) and the cushion bracket (720) are provided with guide blocks (740), the guide blocks (740) are arranged in the second guide grooves (730) and can slide along the extending track of the second guide grooves (730), and the extending track of the second guide grooves (730) has a displacement amount in the horizontal direction.
  10. 10. The lumbar electric push method is applied to the electric push chair according to any one of claims 2 to 4, and in an upright state, the position of the hinge shaft (510) at the front end of the first guide groove (520) is set to be a front position, and the position of the hinge shaft (510) at the rear end of the first guide groove (520) is set to be a rear position; The output end (320) of the electric push rod (300) moves away from the body (310) so that the hinge shaft (510) gradually moves from a front position to a rear position in the first guide groove (520), and the extending track of the first guide groove (520) has a displacement in the horizontal direction so that the lumbar support (110) gradually moves away from the back support (200); The output end (320) of the electric push rod (300) moves close to the body (310), so that the hinge shaft (510) gradually moves from the rear position to the front position in the first guide groove (520), and the extending track of the first guide groove (520) has a displacement in the horizontal direction, so that the lumbar support (110) gradually moves close to the back support (200).

Description

Electric pushing type seat and lumbar support electric pushing method Technical Field The invention relates to the field of furniture or office furniture, in particular to an electric pushing type seat and a lumbar support electric pushing method. Background The active adjustment mode of the waist rest angle of the existing office chair is mainly completed by mechanical manual adjustment, the pause feeling in the structure adjustment process is obvious, the adjustment structure is easy to damage, the function is single, and the use experience is poor. Disclosure of Invention The present invention aims to solve at least one of the technical problems existing in the prior art. Therefore, the invention provides the electric pushing type seat and the lumbar support electric pushing method, which are convenient for the installation of driving components and the adjustment of the lumbar support. An embodiment of the first aspect of the present invention provides an electric push seat, comprising: The back frame comprises an upper frame and a lumbar support which are arranged up and down, the upper frame and the lumbar support can be movably connected, and the lumbar support comprises a mounting part; The back support is connected with the upper frame and is provided with a connecting seat; The electric push rod comprises an output end and a body arranged on the installation part, and the body is hinged with the installation part. The two ends of the first connecting rod are respectively hinged with the output end and the connecting seat; The track limiting structure is used for limiting the movement track of the hinge position of the first connecting rod and the output end; The electric push rod is used for driving the lumbar support to move close to and away from the back support, and the electric push rod is used for driving the lumbar support to swing relative to the upper frame. The electric push type seat provided by the embodiment of the first aspect of the invention has at least the following beneficial effects: the support angle of the lumbar support can be flexibly adjusted according to the requirements by the driving mode of the electric push rod, and the electric push rod can be conveniently matched with an electric control system to set various movement modes of the electric push rod, so that the lumbar support has various modes, such as quick reciprocating movement and slow reciprocating movement, different massage modes are formed, the electric control mode controls the lumbar support to have higher precision, and the functions of the lumbar support are enriched; In office chair products, the overall dimension of back support length and width can be some for back frame usually, and back frame direct mount to back support can, back support then be the axle center piece of installation, a great deal of parts all need install on back support, obviously the installation of back frame is more convenient, can directly install the main part of sharp driver on the waist is leaned on through the setting of installation department, and sharp driver can be high-efficient earlier install on back frame, along with back frame together install on back support again, and installation effectiveness is high and convenient. According to some embodiments of the invention, the track defining structure comprises: The hinge shaft is arranged at the hinge position of the first connecting rod and the output end; the first guide groove is arranged on the mounting part, in an upright state, the extending track of the first guide groove has displacement in the horizontal direction, and the part of the hinge shaft is arranged in the first guide groove and can slide along the extending track of the first guide groove. According to some embodiments of the invention, the first guide groove is a straight chute, and in an upright state, an extending track of the first guide groove extends obliquely downwards from front to back. According to some embodiments of the present invention, an included angle between a movement direction of the output end and an extending direction of the first connecting rod is set as a, an included angle between the extending direction of the first connecting rod and an extending direction of the first guide groove is set as B, a position of the hinge shaft at a front end of the first guide groove is set as a front position, and a position of the hinge shaft at a rear end of the first guide groove is set as a rear position in an upright state; The front position A is [50 DEG, 70 DEG ] ], the front position B is [5 DEG, 25 DEG ] ], the rear position A is [70 DEG, 90 DEG ] ], and the rear position B is [35 DEG, 55 DEG ] ]. According to some embodiments of the invention, the rear end of the mounting portion is provided with a first mounting groove, and the body is hinged in the first mounting groove. According to some embodiments of the invention, the bottom of the upper frame extends downward beyond the firs