CN211269533U - Chair assembly with back capable of rotating and automatically rebounding - Google Patents

Abstract

The utility model discloses a chair assembly with back rotating and automatic rebounding, which relates to the furniture field, in particular to a chair assembly with a rubber back frame, a first iron clamping piece, a rotating assembly and a rubber handrail; the first iron clamping pieces are fixedly connected with the rubber back frame through screws and arranged at the positions of the two side sides of the rubber back frame; the rotating assembly passes through the first iron clamping piece and is fixedly connected with the rubber handrail, and the rotating assembly is rotatably connected with the first iron clamping piece; the rotating piece can enable the rubber back frame to rotate at a certain angle relative to the rubber handrail and rebound; the utility model discloses can have more that the different automatic rotation of human every single move angle glues the back of the body frame, make the human body more comfortable.

Description

Chair assembly with back capable of rotating and automatically rebounding

Technical Field

The utility model belongs to the technical field of furniture and specifically relates to a chair subassembly of going up of automatic resilience is rotated at back.

Background

When a human body sits down, the backrest of the chair can automatically expand backwards to a certain degree, because the backrest plate of the chair inclines due to the backward force of the human body, most chairs in the prior art are not adjusted in a rotating mode according to the back contour of the human body, and the human body can feel uncomfortable when leaning backwards.

Some can pivoted backplate structure complicacies, and can't realize the function of automatic resilience, makes different people need adjust when using the chair, and it is comparatively troublesome to use, influences human comfort level.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a utility model aim at: to above-mentioned problem, provide a chair subassembly of going up of automatic resilience of back rotation, solved the chair part and can not rotate when the back contacts the back under human seat, and can not the problem of automatic resilience.

The scheme is realized as follows:

comprises a rubber back frame, a first iron clamping piece, a rotating assembly and a rubber handrail; the first iron clamping pieces are fixedly connected with the rubber back frame through screws and arranged at the positions of the two side sides of the rubber back frame; the rotating assembly passes through the first iron clamping piece and is fixedly connected with the rubber handrail, and the rotating assembly is rotatably connected with the first iron clamping piece; the rotating piece can enable the rubber back frame to rotate at a certain angle relative to the rubber handrail and rebound.

Preferably, the first iron clamp comprises a connecting plate, a connecting boss and a rotary matching boss; a circular channel penetrates through the connecting plate, the connecting boss is arranged on one end face of the connecting plate, the connecting bosses are symmetrically arranged on the end face of the connecting plate along the circular channel, and thread grooves are formed in the connecting bosses; the rotary fit boss is arranged on the other end face of the connecting plate, the rotary fit boss is symmetrically arranged on the end face of the connecting plate along the circular channel, and a fit channel is arranged on one rotary fit boss.

Preferably, the rotating assembly comprises a limiting screw, a rotating rubber piece, a torsion spring and a second iron clamping piece; the rotary rubber piece is sleeved on the limiting screw, the limiting screw penetrates through the circular channel of the connecting plate, and the circular area of the circular screw head of the limiting screw is larger than the area of the circular channel.

Preferably, the torsion spring comprises a horizontal end, a vertical end and a torsion part; the direction that horizontal end set up is mutually perpendicular with the direction that sets up of vertical end, horizontal end joint is in the cooperation passageway, and vertical end sets up in the second iron fastener.

Preferably, the second iron clamp comprises a fixed disc, a rotation limiting bulge and a limiting boss; the center of the fixed disc is provided with a through channel, the rotation limiting bulges are arranged on the end surface of the fixed disc contacted with the torsion spring, the rotation limiting bosses are symmetrically arranged along the center of the fixed disc along the through channel, the symmetrically arranged rotation limiting bosses are vertical to the central line of the symmetrically arranged rotation matching bosses,

preferably, the central angle between the adjacent rotation limiting protrusions and the rotation matching bosses is 25 degrees, and when the arc-shaped rotation limiting protrusions and the rotation matching bosses are matched for use, the rotation limiting protrusions and the rotation matching bosses are on the same circumference.

Preferably, a torsion spring through groove is formed in the inner side arc position of one of the rotation limiting protrusions, the vertical end of the torsion spring is inserted into the torsion spring through groove, and the torsion spring through groove penetrates through the fixed disc and protrudes towards the rubber handrail side to form a torsion spring protrusion.

Preferably, the limiting boss is arranged on the surface of the fixed disk far away from the torsion spring, and the limiting boss protrudes out of the fixed disk; the size of the limiting boss is different from that of the torsion spring.

Preferably, the rubber handrail is provided with a thread groove matched with the limiting screw and a groove matched with the limiting protrusion in size.

Preferably, the left end and the right end of the adhesive back frame are provided with threaded holes matched with the threaded holes in the connecting protrusions, and the threaded holes are arranged into 2 groups.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in set up and rotate spacing arch and normal running fit boss, because the central angle between the protruding and the rotation spacing arch of normal running fit is 25, then the normal running fit arch can rotate 25 for rotating spacing arch, the horizontal end joint of torsional spring is in the bellied cooperation passageway of normal running fit, when the people carries on the back frame, the normal running fit arch can rotate spacing arch relatively and carry out the rotation of 25 the biggest, when rotating, the horizontal end atress of torsional spring, make the inside production torsion of torsional spring, when the people leaves, the torsional spring drives the protruding rotation of normal running fit and resets, promote the travelling comfort that the human body used.

2. The utility model discloses rotate between sub-limiting screw and the first iron fastener and glue the piece, rotate the piece of gluing and can reduce the abnormal sound that first iron fastener is relative when rotating with limiting screw's screw head. The rotation and fixation are smoother and more comfortable.

3. The utility model discloses can be fast convenient assemble by oneself, when dispatching from the factory, with first iron fastener, runner assembly and gluey handrail equipment as an organic whole handrail external member, can conveniently transport, the customer only need install by oneself about each 2 screw rods will glue the back of the body frame and be connected with the handrail external member, can accomplish the installation, make the installation simplify more, it is more swift.

Drawings

Fig. 1 is an exploded view of the installation structure of the rubber back frame and other components of the present invention;

fig. 2 is a schematic view of the rubber back frame and other parts mounting structure of the present invention at another angle;

fig. 3 is a schematic view of another angle of the rubber back frame and other component mounting structure of the present invention:

FIG. 4 is a schematic structural diagram of the self-service installation of the customer in the present invention;

FIG. 5 is a schematic view of the rotation of the adhesive backing frame of the present invention;

fig. 6 is a schematic structural view of the first iron clamping piece of the present invention;

fig. 7 is a schematic structural view of the second iron clamping member of the present invention:

FIG. 8 is a schematic structural view of the torsion spring of the present invention;

FIG. 9 is a schematic view of the structure of the present invention in which the rotation-fitting boss and the rotation-limiting protrusion are fitted and rotated;

FIG. 10 is a schematic view of the structure of the rotating assembly of the present invention;

fig. 11 is the structure schematic diagram of the boss main view of the rotation fit in the utility model:

FIG. 12 is a schematic structural view of a rotation limiting protrusion of the present invention;

the labels in the figure are: 1. gluing a back frame; 2. a first iron clamp; 3. a rotating assembly; 4. a rubber handrail; 11. a connecting plate; 12. connecting the bosses; 13. the boss is rotationally matched; 14. a mating channel; 31. a limiting screw; 32. rotating the rubber piece; 33. a torsion spring; 34. a second iron clamp; 331. a horizontal end; 332. a vertical end; 333. a torsion portion; 341. fixing the disc; 342. rotating the limiting protrusion; 343. a limiting boss; 344. a torsion spring through groove; 345. the torsion spring is convex.

Detailed Description

All of the features disclosed in this specification, or all of the steps in any method or process so disclosed, may be combined in any combination, except combinations of features and/or steps that are mutually exclusive.

Any feature disclosed in this specification (including any accompanying claims, abstract) may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise. That is, unless expressly stated otherwise, each feature is only an example of a generic series of equivalent or similar features.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the referred devices or elements must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 to 12, a back-rotating automatic rebounding chair-mounting assembly comprises a rubber back frame, a first iron clamping piece, a rotating assembly and a rubber armrest; the first iron clamping pieces are fixedly connected with the rubber back frame through screws and arranged at the positions of the two side sides of the rubber back frame; the rotating assembly penetrates through the first iron clamping piece and is fixedly connected with the rubber handrail, and the rotating piece can enable the rubber back frame to rotate at a certain angle relative to the rubber handrail and rebound.

The first iron clamping piece comprises a connecting plate, a connecting boss and a rotary matching boss; a circular channel penetrates through the center of the connecting plate, the connecting boss is arranged on one end face of the connecting plate, the connecting bosses are symmetrically arranged on the end face of the connecting plate along the circular channel, thread grooves are formed in the connecting bosses, and the first iron clamping piece and the rubber back frame are stably and fixedly connected through the thread grooves; the rotary fit boss is arranged on the other end face of the connecting plate and is of an arc-shaped structure, the rotary fit bosses are symmetrically arranged on the end face of the connecting plate along the circular channel, and a fit channel is arranged on one of the rotary fit bosses.

The rotating assembly comprises a limiting screw, a rotating rubber piece, a torsion spring and a second iron clamping piece; the rotary rubber part is of a long cylinder structure, and one end of the rotary rubber part is provided with a rotary disc; the rotary rubber piece is sleeved on the limiting screw, the limiting screw penetrates through the circular channel of the connecting plate, the circular area of the circular screw head of the limiting screw is larger than that of the circular channel, and the first iron clamping piece is prevented from being separated from the limiting screw; the rotating rubber piece can reduce abnormal sound generated by friction when the first iron clamping piece rotates relative to the screw head of the limiting screw. The rotation and fixation are smoother and more comfortable.

The torsion spring comprises a horizontal end, a vertical end and a torsion part; the arrangement direction of the horizontal end is perpendicular to that of the vertical end, the horizontal end and the vertical end are respectively connected with the twisting part, the horizontal end is clamped in the matching channel, and the vertical end is arranged in the second iron clamping piece; when first iron fastener rotated in the atress, the horizontal end of joint in the cooperation passageway produced torsion, and when first iron fastener atress disappeared, the inside torsion of torsional spring resets first iron fastener, and first iron fastener drives gluey back of the body frame and resets. When making the people sit on the chair, the gluey back of the body frame can rotate according to human every single move degree, when the people leaves, and the automatic gyration resets, promotes the travelling comfort of using the chair to it is more firm to make the rotation.

The second iron clamp comprises a fixed disc, a rotary limiting bulge and a limiting boss; the center of the fixed disc is provided with a through channel, the rotation limiting bosses are arranged on the end faces of the fixed disc, which are contacted with the torsion springs, the rotation limiting bosses are symmetrically arranged along the center of the fixed disc, the rotation limiting bosses which are symmetrically arranged are vertical to the central lines of the rotation matching bosses which are symmetrically arranged, the rotation limiting bosses are in an arc shape, the central angle between the adjacent rotation limiting bosses and the rotation matching bosses is 25 degrees, and when the rotation limiting bosses and the rotation matching bosses of the arc shape are matched, the rotation limiting bosses and the rotation matching bosses are on the same circumference; a torsion spring through groove is formed in the inner side arc position of one rotation limiting protrusion, the vertical end of the torsion spring is inserted into the torsion spring through groove, and the torsion spring through groove penetrates through the fixed disc and protrudes towards the glue handrail side to form a torsion spring protrusion.

The limiting boss is arranged on the surface of the fixed disk far away from the torsion spring, protrudes out of the fixed disk, can be quickly positioned and clamped with the rubber handrail, so that the second clamping piece can be quickly installed, and the limiting boss and the torsion spring bulge are combined for use and matched with a groove in the rubber handrail, so that the second iron clamping piece cannot rotate in the rubber handrail; the size of the limiting boss is different from that of the torsion spring.

When the back plate is glued to shelves and is rotated, the responsible of spacing screw presses the iron fastener of second in gluing the handrail, but spacing screw can not restrict the iron fastener of second and gluing the handrail internal rotation, and spacing boss and the protruding combination of torsional spring use together, be in order to let the iron fastener of second can not gluing the handrail internal rotation, spacing boss and the bellied size of torsional spring set up differently, are the error rate when reducing the installation, make the runner assembly can be quick, accurate install, practice thrift installation time, promote the installation effectiveness.

The rubber handrail is provided with a thread groove matched with the limiting screw and a groove matched with the limiting bulge in size; the screw rod of the limiting screw is in threaded connection with the thread groove, so that the rotating assembly is integrally and fixedly connected with the rubber handrail. The glue handrail provides support for the glue back frame and the rotating assembly.

The left end portion and the right end portion of the adhesive back frame are provided with threaded holes matched with the threaded holes in the connecting boss, the threaded holes are arranged into 2 groups, and the first iron clamping piece is fixedly connected with the adhesive back frame through 2 groups of threaded holes and screw rods in a matched mode.

In the equipment, when dispatching from the factory, with first iron fastener, runner assembly and gluey handrail equipment as an organic whole handrail external member, can conveniently transport, the customer only need install by oneself about each 2 screw rods will glue the back of the body frame and be connected with the handrail external member, can accomplish the installation operation, make the installation simplify more, it is more swift.

The rotation rebound principle of the rubber back frame is as follows: the spacing arch of rotation and the normal running fit boss of circular arc type when the equipment is accomplished are on same circumference, because the central angle between normal running fit arch and the rotation spacing arch is 25, then the normal running fit arch can rotate 25 for rotating the spacing arch, then the horizontal end joint of torsional spring is in the bellied cooperation passageway of normal running fit, when the people carries the back frame, the normal running fit arch can rotate the spacing arch relatively and carry out the rotation of 25 the biggest, in the time of rotating, the horizontal end atress of torsional spring, make the inside production torsion of torsional spring, when the people leaves, the torsional spring drives the protruding rotation of normal running fit and resets.

When the adhesive back frame is used only, a door net needs to be installed in the adhesive back frame for matching use, and details are not repeated here except for the invention point of the scheme.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a back rotates chair components of going up of automatic resilience which characterized in that: comprises a rubber back frame, a first iron clamping piece, a rotating assembly and a rubber handrail; the first iron clamping pieces are fixedly connected with the rubber back frame through screws and arranged at the positions of the two side sides of the rubber back frame; the rotating assembly passes through the first iron clamping piece and is fixedly connected with the rubber handrail, and the rotating assembly is rotatably connected with the first iron clamping piece; the rotating piece can enable the rubber back frame to rotate at a certain angle relative to the rubber handrail and rebound.

2. The back pivoting self-rebounding upper chair assembly of claim 1, wherein: the first iron clamping piece comprises a connecting plate, a connecting boss and a rotary matching boss; a circular channel penetrates through the connecting plate, the connecting boss is arranged on one end face of the connecting plate, the connecting bosses are symmetrically arranged on the end face of the connecting plate along the circular channel, and thread grooves are formed in the connecting bosses; the rotary fit bosses are arranged on the other end face of the connecting plate, the rotary fit bosses are symmetrically arranged on the end face of the connecting plate along the circular channel, and one of the rotary fit bosses is provided with a fit channel.

3. The back pivoting self-rebounding upper chair assembly of claim 1, wherein: the rotating assembly comprises a limiting screw, a rotating rubber piece, a torsion spring and a second iron clamping piece; the rotary rubber piece is sleeved on the limiting screw, the limiting screw penetrates through the circular channel of the connecting plate, and the circular area of the circular screw head of the limiting screw is larger than the area of the circular channel.

4. A back pivoting self-rebounding seat-on assembly as set forth in claim 3, wherein: the torsion spring comprises a horizontal end, a vertical end and a torsion part; the direction that horizontal end set up is mutually perpendicular with the direction that sets up of vertical end, horizontal end joint is in the cooperation passageway, and vertical end sets up in the second iron fastener.

5. A back pivoting self-rebounding seat-on assembly as set forth in claim 3, wherein: the second iron clamp comprises a fixed disc, a rotary limiting bulge and a limiting boss; the fixed disk center is provided with the through passage, rotate spacing arch and set up on the terminal surface of fixed disk and torsional spring contact, it is provided with the through passage symmetry setting along the fixed disk center to rotate spacing boss, the central line phase of the normal running fit boss that the rotation spacing boss and the symmetry that the symmetry set up is perpendicular.

6. The back pivoting self-rebounding seat-on assembly of claim 5, wherein: the central angle between the adjacent rotation limiting protrusion and the rotation matching boss is 25 degrees, and the rotation limiting protrusion and the rotation matching boss are in the same circumference when matched for use.

7. The back pivoting self-rebounding seat-on assembly of claim 6, wherein: one of them rotate spacing bellied inboard circular arc position and be provided with the torsional spring and lead to the groove, the vertical end of torsional spring is pegged graft and is got into the torsional spring and lead to the inslot, the torsional spring leads to the groove and runs through fixed disc and to gluey handrail side bulge formation torsional spring arch.

8. The back pivoting self-rebounding seat-on assembly of claim 5, wherein: the limiting boss is arranged on the surface of the fixed disk far away from the torsion spring, and protrudes out of the fixed disk; the size of the limiting boss is different from that of the torsion spring.

9. A back pivoting self-rebounding upper chair assembly according to claim 1, 2 or 3, wherein: the glue handrail is provided with a thread groove matched with the limiting screw and a groove matched with the limiting protrusion in size.

10. A back pivoting self-rebounding upper chair assembly according to claim 1, 2 or 3, wherein: the left end portion and the right end portion of the adhesive back frame are provided with threaded holes matched with the threaded holes in the connecting bosses, and the threaded holes are arranged into 2 groups.

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