CN216089698U

CN216089698U - Backrest accessory with resilience structure

Info

Publication number: CN216089698U
Application number: CN202122673237.4U
Authority: CN
Inventors: 郎元军
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-11-03
Filing date: 2021-11-03
Publication date: 2022-03-22
Anticipated expiration: 2031-11-03

Abstract

The utility model belongs to the technical field of furniture, and discloses a backrest accessory with a springback structure, which comprises a waist support plate and a springback device, wherein the springback device comprises a fixed frame, a torsion spring and a positioning rod, at least one torsion spring is arranged in the fixed frame, the positioning rod penetrates through the fixed frame and the torsion spring, a rubber sleeve is arranged on the outer side of the torsion spring, one end of the waist support plate is fixedly connected with the positioning rod, one end of the torsion spring is abutted against the springback device, and the other end of the torsion spring is abutted against the waist support plate. This back accessory beneficial effect with resilience structure is: the utility model discloses a waist support plate, including the torsional spring, the torsional spring makes waist support plate have the function of kick-backing, makes waist support plate and user's back contact, plays the effect that supports the user back, the gum cover has reduced the noise.

Description

Backrest accessory with resilience structure

Technical Field

The utility model belongs to the technical field of furniture, and particularly relates to a backrest accessory with a rebound structure.

Background

The backrest is a chair accessory capable of providing back support for a user, which can make the user comfortable to sit and relieve fatigue, and the waist is one of the most tired places of the human body, so that serious lumbar and spinal diseases can be caused if the user sits in an incorrect posture for a long time or the chair structure is not reasonable, and the waist support is an important component of the backrest.

Can support human lumbar vertebrae through protecting the waist, effectively alleviate the pressure of user's waist, however the common waist support chair on the market at present often is simple protect the waist pillow in addition at the back lower extreme, and its structure is not stable enough, and the life-span is shorter, lacks resilience performance, and is not strong enough to the supporting role of waist, and the support and the life of protecting the waist can not satisfy most crowds' demand.

SUMMERY OF THE UTILITY MODEL

Aiming at the technical defects in the background art, the utility model provides a backrest accessory with a springback structure, which solves the technical problems and meets the actual requirements, and the specific technical scheme is as follows:

the utility model provides a back accessory with resilience structure, is including protecting waist board and resilient mounting, resilient mounting includes mount, torsional spring and locating lever, at least, be equipped with one in the mount the torsional spring, the locating lever passes the mount with the torsional spring, the locating lever with be equipped with the locating part between the torsional spring, the torsional spring outside is equipped with the gum cover, protect the waist board one end with locating lever fixed connection, protect the waist board and pass through the locating lever rotates and is connected with resilient mounting, the one end of torsional spring with resilient mounting is inconsistent, the other end of torsional spring inserts protect the waist board and with protect the waist board and contradict.

As an improvement of the above scheme, the waist support plate comprises a front plate and a rear plate, the front plate is fixedly connected with the rear plate, a protective cover is arranged at the upper end of the front plate, at least one stabilizing groove is formed in the surface of the rear plate, a stabilizing ring is fixedly connected with the stabilizing groove, and a rotating groove matched with the rebounding device is formed in the upper end of the rear plate.

As an improvement of the scheme, the rotating groove is provided with a first through hole matched with the torsion spring, and a first limiting groove matched with the torsion spring is arranged at the position, corresponding to the lower part of the first through hole, of the rear plate.

As an improvement of the scheme, second limiting grooves matched with the positioning rods are arranged on two sides of the rotating grooves, two ends of each positioning rod are fixedly connected with the second limiting grooves, and one end of each rebounding device is inserted into the corresponding rotating groove and is rotatably connected with the corresponding positioning rod.

As an improvement of the above scheme, the one end of torsional spring is passed first through-hole and with the inner wall of first spacing groove is inconsistent, the other end of torsional spring is worn out the setting and is in the second through-hole on mount surface, the mount inner wall be equipped with the spacing ditch of torsional spring complex, the one end of spacing ditch is equipped with the second through-hole, spacing ditch with the tip of torsional spring is inconsistent.

As the improvement of the above scheme, one side that the mount was kept away from the back plate is equipped with at least three first locating hole, the mount has the mounting panel through first locating hole fixedly connected with, the mounting panel corresponds the position in first locating hole is equipped with the second locating hole, mounting panel center department be equipped with torsional spring cooperation third through-hole.

As an improvement of the scheme, the upper end of the mounting plate is fixedly connected with one end of a connecting piece, the other end of the connecting piece is provided with a handrail support, and the upper surface of the handrail support is provided with a connecting plate.

The utility model has the beneficial effects that: the locating lever passes mount and torsional spring, and both ends and rotation groove fixed connection, the locating lever can consolidate resilient means on the one hand, makes resilient means and the combination between the waist support board more stable simultaneously, and on the other hand can rotate waist support board and connect on resilient means, realizes the rotation of waist support board, the torsional spring makes waist support board have the resilience function, presses when the user when protecting the waist board, the torsional spring can support and protect the waist board, makes waist support board and user's back contact, plays the effect of supporting the user back, the gum cover can avoid the direct and accessory contact of torsional spring, can the noise reduction simultaneously.

Drawings

Fig. 1 is a schematic view showing the overall structure of a back assembly having a resilient structure according to the present invention.

Fig. 2 is a schematic view of the structure of the rebounding device of the backrest fitting with a rebounding structure of the present invention.

Fig. 3 is a schematic view of an exploded structure of the back rest assembly having a resilient structure of the present invention.

Fig. 4 is a schematic view showing the inner structure of the back plate of the back assembly having the resilient structure of the present invention.

Fig. 5 is a rear view of the back plate of the back assembly having the resilient structure of the present invention.

Wherein: the waist support comprises a waist support plate 1, a front plate 11, a protective cover 111, a rear plate 12, a stabilizing groove 121, a stabilizing ring 122, a first limiting groove 123, a rotating groove 13, a first through hole 131, a second limiting groove 132, a rebounding device 2, a fixed frame 21, a second through hole 211, a limiting groove 212, a first positioning hole 213, a torsion spring 22, a rubber sleeve 221, a positioning rod 23, a limiting piece 24, an installation plate 25, a second positioning hole 251, a third through hole 252, a handrail support 3, a connecting piece 31 and a connecting plate 32.

Detailed Description

Embodiments of the present invention will be described below with reference to the accompanying drawings and related embodiments, which are not limited to the following embodiments, and the present invention relates to relevant necessary components in the technical field, and should be regarded as known in the art and known to those skilled in the art and understood by the technical field.

As shown in fig. 1 to 5, a backrest accessory with a resilient structure includes a waist support plate 1 and a resilient device 2, where the resilient device 2 is configured to be rotatably connected to the waist support plate 1, the resilient device 2 includes a fixing frame 21, a torsion spring 22 and a positioning rod 23, at least one torsion spring 22 is disposed in the fixing frame 21, preferably, two symmetrical torsion springs 22 are disposed in this embodiment, a baffle is disposed in the fixing frame 21 to separate the two torsion springs 22, the positioning rod 23 passes through the fixing frame 21 and the torsion spring 22, a limiting member 24 is disposed between the positioning rod 23 and the torsion spring 22, the limiting member 24 is configured to limit an installation position of the torsion spring 22, so that the torsion spring 22 is limited in the fixing frame 21, the positioning rod 23 is configured to further limit an installation position of the torsion spring 22, so that the torsion spring 22 can be fixedly installed in the fixing frame 21, and the positioning rod 23 limits an installation position of the fixing frame 21, the fixing frame 21 can be connected with the waist protecting plate 1, the rubber sleeve 221 is arranged on the outer side of the torsion spring 22, the rubber sleeve 221 has the function of noise reduction, the friction force between the torsion springs 22 is reduced, and the service life of the torsion spring 22 is prolonged;

protect the one end of waist board 1 with locating lever 23 fixed connection, locating lever 23 can consolidate protect and combine between waist board 1 and the resilient means 2, let this back accessory that has the resilience structure more firm, protect waist board 1 through locating lever 23 rotates and is connected with resilient means 2, the one end of torsional spring 22 with resilient means 2 is inconsistent, the other end of torsional spring 22 inserts protect waist board 1 and with protect waist board 1 inconsistent, torsional spring 22 be used for with protect waist board 1 and connect and drive and protect waist board 1 and resume the normal position, press when the user when protecting waist board 1, torsional spring 22 can support and protect waist board 1, make and protect waist board 1 and user's back contact, play the effect of supporting the waist.

As shown in fig. 1 to 5, it should be noted that the waist support panel 1 includes a front plate 11 and a back plate 12, the front plate 11 is fixedly connected to the back plate 12, preferably, the front plate 11 and the back plate 12 of the present embodiment are fixedly connected by a snap, a protective cover 111 is disposed at an upper end of the front plate 11, the front plate 11 is configured to contact with the back of the user and support the back of the user, the protective cover 111 is configured to prevent the user from contacting with the resilient device 2 and the back plate 12, at least one stabilizing groove 121 is disposed on a surface of the back plate 12, the back plate 12 is configured to reinforce the waist support panel 1 and enable the waist support panel 1 to elastically rotate around the positioning rod 23, a stabilizing ring 122 is fixedly connected to the stabilizing groove 121, the stabilizing groove 121 is configured to receive the stabilizing ring 122, the stabilizing ring 122 is configured to further reinforce the waist support panel 1, so that the waist support panel 1 is not easily broken, the upper end of back plate 12 be equipped with 2 complex of resilient means rotate groove 13, resilient means 2's one end insert establish with rotate in the groove 13, and pass through locating lever 23 rotates the connection, the one end of torsional spring 22 insert establish with inside the back plate 12, press when the user protects waist board 1, torsional spring 22 can withstand back plate 12, thereby makes protect waist board 1 and user's back in close contact with.

As shown in fig. 4, it should be noted that the rotation groove 13 is provided with a first through hole 131 matched with the torsion spring 22, a first limit groove 123 matched with the torsion spring 22 is provided at a position of the rear plate 12 below the first through hole 131, the torsion spring 22 passes through the first through hole 131 and is finally installed in the first limit groove 123 and abutted against the first limit groove 123, and the first limit groove 123 also plays a role in accommodating the torsion spring 22.

As shown in fig. 3 and 5, it should be noted that second limiting grooves 132 engaged with the positioning rods 23 are disposed on two sides of the rotating groove 13, two ends of the positioning rods 23 are fixedly connected with the second limiting grooves 132, the second limiting grooves 132 are used for limiting the positions of the positioning rods 23, preferably, the positioning rods 23 and the second limiting grooves 132 of the present embodiment are fixedly connected by bolts, one end of the resilient means 2 is inserted into the rotating groove 13 and rotatably connected by the positioning rods 23, and this connection mode enables the waist support 1 to rotate around the positioning rods 23.

As shown in fig. 2 and 4, it should be noted that one end of the torsion spring 22 passes through the first through hole 131 and abuts against the inner wall of the first limiting groove 123, the other end of the torsion spring 22 passes through the second through hole 211 formed in the surface of the fixing frame 21, the inner wall of the fixing frame 21 is provided with a limiting groove 212 matched with the torsion spring 22, one end of the limiting groove 212 is provided with the second through hole 211, the limiting groove 212 abuts against the end of the torsion spring 22, and the installation position of the torsion spring 22 enables the torsion spring 22 to be more stably installed in the rebounding device 2 and the backrest plate 1, and simultaneously enables the backrest plate 1 to rebound back and forth.

As shown in fig. 2 and fig. 3, it should be noted that at least three first positioning holes 213 are disposed on one side of the fixing frame 21 away from the back plate 12, preferably, the fixing frame 21 of this embodiment is disposed with three first positioning holes 213, the first positioning holes 213 are used for fixedly mounting the mounting plate 25, the fixing frame 21 is fixedly connected with the mounting plate 25 through the first positioning holes 213, the mounting plate 25 is used for fixedly mounting the backrest accessory with the resilient structure on a chair, a second positioning hole 251 is disposed at a position of the mounting plate 25 corresponding to the first positioning holes 213, the second positioning hole 251 is used for fixing the mounting plate 25 on the surface of the fixing frame 21, a third through hole 252 matched with the torsion spring 22 is disposed at the center of the mounting plate 25, and the torsion spring 22 passes through the third through hole 252.

As shown in fig. 1, it should be noted that one end of a connecting member 31 is fixedly connected to the upper end of the mounting plate 25, the connecting member 31 is used for connecting the mounting plate 25 and the armrest support 3, the armrest support 3 is arranged at the other end of the connecting member 31, a connecting plate 32 is arranged on the upper surface of the armrest support 3, the connecting plate 32 is used for being fixedly connected with an armrest, the armrest support 3 is installed in cooperation with a chair, and the structure can further reinforce the rebounding device 2 and the waist support 1.

The foregoing is only a preferred embodiment of the present invention, and 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

1. The utility model provides a back accessory with resilience structure, is including protecting waist board (1) and resilient means (2), a serial communication port, resilient means (2) are including mount (21), torsional spring (22) and locating lever (23), be equipped with one at least in mount (21) torsional spring (22), locating lever (23) are passed mount (21) with torsional spring (22), locating lever (23) with be equipped with locating part (24) between torsional spring (22), the torsional spring (22) outside is equipped with gum cover (221), protect the one end of waist board (1) with locating lever (23) both ends fixed connection, protect waist board (1) to pass through locating lever (23) rotate and are connected with resilient means (2), the one end of torsional spring (22) with resilient means (2) are inconsistent, the other end of torsional spring (22) is inserted protect waist board (1), And is abutted against the waist protecting plate (1).

2. The backrest fitting with a rebounding structure according to claim 1, characterized in that the waist support plate (1) comprises a front plate (11) and a rear plate (12), the front plate (11) is fixedly connected with the rear plate (12), a protective cover (111) is arranged at the upper end of the front plate (11), at least one stabilizing groove (121) is arranged on the surface of the rear plate (12), a stabilizing ring (122) is fixedly connected with the stabilizing groove (121), and a rotating groove (13) matched with the rebounding device (2) is arranged at the upper end of the rear plate (12).

3. The backrest fitting with a rebound structure as set forth in claim 2, wherein the rotation groove (13) is provided with a first through hole (131) engaged with the torsion spring (22), and the rear plate (12) is provided with a first stopper groove (123) engaged with the torsion spring (22) at a position corresponding to a lower side of the first through hole (131).

4. The backrest accessory with the rebounding structure according to claim 2, wherein second limiting grooves (132) matched with the positioning rods (23) are formed on two sides of the rotating groove (13), two ends of each positioning rod (23) are fixedly connected with the second limiting grooves (132), and one end of the rebounding device (2) is inserted into the rotating groove (13) and is rotatably connected with the positioning rods (23).

5. The backrest accessory with the rebound structure as set forth in claim 3, wherein one end of the torsion spring (22) penetrates through the first through hole (131) and abuts against the inner wall of the first limit groove (123), the other end of the torsion spring (22) penetrates through a second through hole (211) formed in the surface of the fixed frame (21), a limit groove (212) matched with the torsion spring (22) is formed in the inner wall of the fixed frame (21), the second through hole (211) is formed in one end of the limit groove (212), and the limit groove (212) abuts against the end of the torsion spring (22).

6. The backrest accessory with the resilient structure of claim 2, wherein the side of the fixing frame (21) far away from the back plate (12) is provided with at least three first positioning holes (213), the fixing frame (21) is fixedly connected with a mounting plate (25) through the first positioning holes (213), the mounting plate (25) is provided with a second positioning hole (251) corresponding to the first positioning hole (213), and the mounting plate (25) is provided with a third through hole (252) at the center for matching with the torsion spring (22).

7. The backrest fitting with a resilient structure of claim 6, wherein one end of a connecting member (31) is fixedly connected to the upper end of the mounting plate (25), the other end of the connecting member (31) is provided with an armrest support (3), and the upper surface of the armrest support (3) is provided with a connecting plate (32).