CN217644880U - Back and waist support device - Google Patents
Back and waist support device Download PDFInfo
- Publication number
- CN217644880U CN217644880U CN202221291122.7U CN202221291122U CN217644880U CN 217644880 U CN217644880 U CN 217644880U CN 202221291122 U CN202221291122 U CN 202221291122U CN 217644880 U CN217644880 U CN 217644880U
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- waist support
- waist
- installation pipe
- connecting piece
- piece
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Abstract
The utility model discloses a back waist holds in palm device, characterized by: comprises a backrest frame, a waist support component and a telescopic driving piece; the waist support assembly comprises an installation pipe and a waist support, two ends of the installation pipe are respectively fixed on two side plates of the backrest frame, a connecting piece extending towards the waist support is connected to the middle position of the back of the waist support, and the middle part of the connecting piece is pivoted on the installation pipe; one end of the telescopic driving piece is pivoted on the top plate of the backrest frame, and the other end of the telescopic driving piece is pivoted on the middle position of the rear end of the connecting piece so as to drive the waist support to swing. The utility model discloses can promote the stability of waist support atress, and then promote the travelling comfort to user's lumbar support.
Description
Technical Field
The utility model relates to a sofa field especially relates to a back waist holds in palm device.
Background
Functional sofas typically include a back portion, a cushion portion, a footrest portion, and a waist rest portion; the three parts are sequentially linked and the angles of the three parts are changed, so that the functional sofa can be switched among sitting posture, semi-lying posture and lying posture. The functional sofa can be switched among the three forms, so that the back, the legs and the waist of a user can be supported at different angles to improve the body comfort of the user.
In the prior art, a general structure of the waist support portion includes a waist support, a linkage and a driving motor, two ends of the waist support are fixed on left and right back boards of the functional sofa through the linkage, and the driving motor is provided with one and fixed on the back board on one side and connected with the linkage on the corresponding back board so as to drive the waist support to move through the linkage. In this structure, under driving motor drives, a set of linkage is initiative linkage, and another set of linkage is driven linkage, leads to the atress at initiative linkage and driven linkage and waist support both ends inhomogeneous, reduces the support stability and the travelling comfort that the waist held in the palm, still can lead to the atress uneven and easy problem of damaging simultaneously, consequently needs further improvement.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art, the utility model provides a back waist holds in palm device can promote the stability that the waist held in the palm the atress, and then promotes the travelling comfort to user's lumbar support.
In order to achieve the above purpose, the utility model provides a following technical scheme:
a backrest waist support device is characterized in that: comprises a backrest frame, a waist support component and a telescopic driving piece;
the waist support assembly comprises an installation pipe and a waist support, two ends of the installation pipe are respectively fixed on two side plates of the backrest frame, a connecting piece extending towards the waist support is connected to the middle position of the back of the waist support, and the middle part of the connecting piece is pivoted on the installation pipe;
one end of the telescopic driving piece is pivoted on the top plate of the backrest frame, and the other end of the telescopic driving piece is pivoted on the middle position of the rear end of the connecting piece so as to drive the waist support to swing.
Preferably, the connecting piece is two connecting pieces which are symmetrically arranged and a pivoting shaft which is arranged at the rear ends of the two connecting pieces and is used for pivoting the telescopic driving piece.
Preferably, the installation pipe is provided with two fixing sheets for connecting the connecting sheet, the connecting sheet is positioned on the inner side of the fixing sheets, and the axial length of the pivot shaft is greater than the distance between the two fixing sheets so as to limit the lower limit of the rear end of the connecting sheet.
Preferably, a cushion washer is sleeved on the end position of the pivot shaft.
Preferably, the front end parts of the two connecting sheets are bent outwards to the outer sides of the fixing sheets so as to limit the lower limit of the front ends of the connecting sheets.
The utility model has the advantages that: the connecting piece is located the waist and holds in the palm the position between two parties at the back, and flexible driving piece is connected on the position between two parties of connecting piece, can make the waist hold in the palm and the connecting piece atress is even, promotes that the waist holds in the palm support intensity, stability and travelling comfort.
Drawings
Fig. 1 is a schematic view of a unfolded state of the backrest waist support device provided by the embodiment;
fig. 2 is a schematic view of the backrest lumbar support device provided in this embodiment in a folded state.
Detailed Description
The backrest waist support device of the present invention will be further described with reference to fig. 1 to 2.
A backrest waist support device is characterized in that: comprises a backrest frame 1, a waist support component 3 and a telescopic driving piece 2. The backrest frame 1 is composed of a left side plate, a right side plate, a top plate and a bottom plate. Waist holds in palm subassembly 3 including installation pipe 31 and waist support 32, on the left side board and the right side board that the bolt was fixed in respectively at the both ends of installation pipe 31, hold in the palm 32 back about on the position placed in the middle be connected with the connecting piece 321 that 32 extends is held in the palm to the waist in the back through bolt or welded mode, connecting piece 321 is close to the middle position pin joint of length direction on installation pipe 31. The telescopic driving part 2 is a push rod motor, the motor end of the push rod motor is pivoted on the pivoting seat of the top plate, and the piston rod end of the push rod motor is pivoted on the left and right middle positions of the rear end of the connecting piece 321 so as to drive the waist support 32 to swing.
Specifically, the connecting pieces 321 are two connecting pieces 3211 symmetrically arranged left and right and a pivot shaft 3213 provided at the rear end of the two connecting pieces 3211 and pivotally connected to the telescopic driving member 2. The mounting tube 31 is welded with two fixing pieces 311 for the connecting piece 3211 to be pivoted by a pin shaft, the connecting piece 3211 is located on the inner side of the fixing piece 311, the axial length of the pivoting shaft 3213 is greater than the distance between the two fixing pieces 311, and when the rear end of the connecting piece 321 swings down to a certain height, the end position of the pivoting shaft 3213 abuts against the top surface of the fixing piece 311 to limit the lower limit of the rear end of the connecting piece 3211 to be the unfolding position.
A cushion washer 3214 is fitted to an end of the pivotal shaft 3213, and the end of the pivotal shaft 3213 abuts against the fixing plate 311 through the cushion washer 3214 to perform a shock absorption and buffering.
The front end of the fixing piece 311 is bent upwards 3111, the front end of the two connecting pieces 3211 are bent outwards 3212 to the outside of the fixing piece 311, and when the front end of the connecting piece 3211 swings downwards to a certain height, the bent part will abut against the front end face of the fixing piece 311 to limit the lower limit of the front end of the connecting piece 3211, i.e. the folding position. The front end of the fixing piece 311 is bent upwards, and the front side surface of the connecting piece 3211 for supporting the bent part after the lower hem at the front end can be provided, so as to control the reasonable height of the lower hem of the waist support 32.
Based on under the above-mentioned structure, connecting piece 321 is located the middle position at the waist support 32 back, and flexible driving piece 2 is connected on the middle position of connecting piece 321, can make the waist support 32 and connecting piece 321 atress even, promotes waist support 32 and supports intensity, stability and travelling comfort.
Unless otherwise specified, in the present invention, if the terms "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of the description, but not for indication or suggestion that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, therefore, the terms describing the orientation or positional relationship in the present invention are only used for exemplary illustration and should not be understood as limitations of the present patent, and those of ordinary skill in the art can understand the specific meaning of the above terms according to the specific circumstances in conjunction with the drawings.
Unless expressly stated or limited otherwise, the terms "disposed," "connected," and "connected" are used broadly and encompass both fixed and removable connections, or integral connections; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. A backrest waist support device is characterized in that: comprises a backrest frame, a waist support component and a telescopic driving piece;
the waist support assembly comprises an installation pipe and a waist support, two ends of the installation pipe are respectively fixed on two side plates of the backrest frame, a connecting piece extending towards the waist support is connected to the middle position of the back of the waist support, and the middle part of the connecting piece is pivoted on the installation pipe;
one end of the telescopic driving piece is pivoted on the top plate of the backrest frame, and the other end of the telescopic driving piece is pivoted on the middle position at the rear end of the connecting piece so as to drive the waist support to swing.
2. The back rest lumbar support device of claim 1, wherein: the connecting piece is two connecting pieces which are symmetrically arranged and a pin joint shaft which is arranged at the rear ends of the two connecting pieces and is used for the pin joint of the telescopic driving piece.
3. The back lumbar support device of claim 2, wherein: the installation pipe is provided with two fixing sheets for connecting the connecting sheet, the connecting sheet is positioned on the inner side of the fixing sheets, and the axial length of the pin joint shaft is greater than the distance between the two fixing sheets so as to limit the lower limit of the rear end of the connecting sheet.
4. The back rest lumbar support device of claim 3, wherein: the end part of the pivot shaft is sleeved with a buffer washer.
5. The back rest lumbar support device of claim 3, wherein: the front end parts of the two connecting sheets are outwards bent to the outer sides of the fixing sheets so as to limit the lower limit of the front ends of the connecting sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221291122.7U CN217644880U (en) | 2022-05-23 | 2022-05-23 | Back and waist support device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221291122.7U CN217644880U (en) | 2022-05-23 | 2022-05-23 | Back and waist support device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217644880U true CN217644880U (en) | 2022-10-25 |
Family
ID=83683623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221291122.7U Active CN217644880U (en) | 2022-05-23 | 2022-05-23 | Back and waist support device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217644880U (en) |
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2022
- 2022-05-23 CN CN202221291122.7U patent/CN217644880U/en active Active
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