CN213097031U - Novel folding chair - Google Patents

Abstract

The utility model relates to a novel folding chair, but including folding chair frame, pull canvas mechanism and self-locking mechanism, folding chair frame includes the back of the chair, bedplate frame, preceding chair leg, back chair leg and folding coupling assembling, chair leg before bedplate frame one end hinge is equipped with, the back of the chair sets up with back chair leg is integrative, bedplate frame middle part is provided with folding coupling assembling, folding coupling assembling one end and preceding chair leg hinge dress, the back chair leg hinge dress of the integrative setting of the other end and the back of the chair, still be provided with pull canvas mechanism in the bedplate frame, folding coupling assembling still is provided with self-locking mechanism with the back chair leg hinge dress department upper portion of the integrative setting of the back of the chair. The utility model has simple structure and novel design, and the self-locking mechanism is arranged on the folding chair frame, thereby effectively avoiding the unstable folding and folding of the folding chair; the drawing canvas is used as the seat board of the folding chair, so that the self weight of the folding chair is reduced, and the service life of the folding chair is greatly prolonged.

Description

Novel folding chair

Technical Field

The utility model belongs to the technical field of the chair, a folding chair technique is related to, especially a novel folding chair.

Background

The folding chair is widely used in life, has the advantages of portability, easy stacking and the like, is convenient to move, and saves space. The device is commonly used in various training institutions, schools at all levels, public places, hospitals, restaurants, hotels, companies, families and other places. Although the folding chair in the prior art also realizes the folding function of the chair, the structure is complex, and the metal connecting rods are exposed outside to influence the appearance; the folding chair is easy to be opened automatically due to shaking and the like in the carrying process because of no locking structure in the carrying process of a folding chair, the chair is easy to be clamped in hands or hurt feet, the problem of accidental injury is easy to be caused, and the like.

The following patent documents relevant to the present application are found by search, and the specific contents are as follows:

1. a folding chair (CN210989221U) comprises chair cloth, wherein a supporting tube is arranged at the bottom of the chair cloth, a plurality of round holes are formed in the surface of the supporting tube, front branch tubes are symmetrically arranged on the front side of the surface of the supporting tube, rear branch tubes are symmetrically arranged on the rear side of the surface of the supporting tube, four supporting legs are arranged at the bottom of the surface of the supporting tube, the front branch tubes, the rear branch tubes and the supporting legs are all inserted into the round holes, and the other ends of the front branch tubes and the rear branch tubes are respectively sleeved with the four corners of the chair cloth; the utility model discloses a set up stay tube, preceding branch pipe, back branch pipe, supporting leg and round hole, solved the inconvenient problem of carrying of current chair, this folding chair when needs are carried, can dismantle preceding branch pipe, back branch pipe and supporting leg from the round hole on the stay tube to pack up the chair cloth, thereby shared space when having reduced to carry has improved folding chair's practicality.

2. The utility model provides a pvc folding chair is with quick dead lock structure (CN210902217U), includes the folding chair body, the folding chair body comprises first folding leg, the folding leg of second and seat, and the length of first folding leg is greater than the length of the folding leg of second, and just first folding leg and the folding leg of second all articulate on the side of seat, are equipped with the connecting piece between first folding leg and the folding leg of second, and the connecting piece is located the top of seat, and beneficial effect is: the utility model discloses be provided with the first body of rod and the second body of rod between first folding leg and the folding leg of second, when folding chair was packed up, the second body of rod inserted completely inside the first body of rod, the first body of rod then near on the folding leg of second, when folding chair expandes, the first body of rod and the second body of rod keep the horizontality, and the inserted bar inserts inside the slot, the total length of the first body of rod and the second body of rod is fixed, folding chair is locked and can't be packed up easily, user's use has been made things convenient for.

3. A clamping structure (CN210989222U) for containing a folding chair comprises a canvas, wherein a first supporting leg and a second supporting leg are sleeved on the front side and the rear side of the canvas respectively, and the inner side of the first supporting leg is rotatably connected with the two sides of the second supporting leg through pins; the utility model discloses a canvas, first supporting leg, the second supporting leg, the activity chamber, the joint pole, a spring, the setting in bayonet lock and joint hole, it clamps fixed knot structure to have solved current folding chair folding self and not having the design, scatter very easily, because old man physical power is very limited, it is more that some strength is not enough after taking, it holds between the fingers the shakiness to take during carrying, scatter often, cause the problem of certain puzzlement, possess the advantage that clamps simple structure is stable, folding chair has effectively been avoided and has been folded unstably, cause old man to carry the problem of puzzlement, moreover, the steam generator is simple in structure, and is worth using widely.

Through the contrast of technical characteristics, above-mentioned patent literature of disclosing with the utility model discloses a technical structure is inequality, can not influence the creativity and the novelty of the utility model application.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art's weak point, provide a simple structure, novel in design, have folding self-locking function's novel folding chair, this novel folding chair is provided with protection device to its folding department, has improved folding chair self life greatly, uses pull formula canvas moreover, as folding chair's bedplate frame, has not only alleviateed folding chair's self weight, prevents simultaneously that folding bedplate frame surface is because long-time not sitting to be stained with the dust.

The utility model provides a its technical problem take following technical scheme to realize:

a novel folding chair comprises a folding chair frame, a drawable canvas mechanism and a self-locking mechanism, wherein the folding chair frame comprises a chair back, a seat board frame, front chair legs, rear chair legs and a folding connecting assembly, one end of the seat board frame is hinged with the front chair legs, the chair back and the rear chair legs are integrally arranged, the middle part of the seat board frame is provided with the folding connecting assembly, one end of the folding connecting assembly is hinged with the front chair legs, the other end of the folding connecting assembly is hinged with the rear chair legs integrally arranged with the chair back, the seat board frame is also internally provided with the drawable canvas mechanism, and the self-locking mechanism is also arranged at the upper part of the hinging part of the rear chair legs, which is integrally arranged;

but pull canvas mechanism includes a protection section of thick bamboo, pivot, canvas, bracing piece, hangs the pole, one side in the seat frame is installed to a protection section of thick bamboo, the pivot is equipped with to coaxial hinge in the protection section of thick bamboo, the winding has the canvas in the pivot, a protection section of thick bamboo one side integrated system has an opening, and canvas one end integrated system has a rectangular shape pull ring, the spacing opening that blocks the protection section of thick bamboo of pull ring, opposite side horizontal installation still has the bracing piece in the seat frame, also horizontal installation hangs the pole in the bottom plate frame of a protection section of thick bamboo lower part, it is parallel with the bracing piece to hang the pole, it is equipped with the fixed hook to hang to adorn admittedly on.

And, self-locking mechanism is including the plectrum of unblanking, lock inserted sheet, lock main part, spring, connecting plate and auto-lock core pin, on the lock main part fixed mounting connecting plate, the auto-lock core pin passes the lock main part and inserts in the lock pin hole that makes on the connecting plate, the front end of auto-lock core pin forms slope shape, and the coaxial cover of spring is on the auto-lock core pin to the restriction is between the epirelief on lock main part and auto-lock core pin, lock inserted sheet one end hinge dress is on this connecting plate, also the lock pin hole position on the corresponding connecting plate on the lock inserted sheet has the lock pin hole, still coaxial hinge is equipped with an unblanking plectrum on the auto-lock core.

Moreover, the tail end of the unlocking poking piece is sleeved with a rubber sleeve.

And the corners of the seat plate frame are wrapped with plastic wrap angles.

The utility model has the advantages that:

the utility model has simple structure and novel design, and the self-locking mechanism is arranged on the folding chair frame, thereby effectively avoiding the unstable folding and folding of the folding chair; and the four corners of the seat plate frame are provided with plastic wrap angles, so that the service life of the folding chair is greatly prolonged, and the drawing canvas is used as the seat plate frame of the folding chair, so that the self weight of the folding chair is reduced, and meanwhile, the surface of the folding seat plate frame is prevented from being stuck with dust due to long-time non-sitting.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is a top view of the present invention;

fig. 3 is a view showing an opened state of the canvas of the present invention;

FIG. 4 is a schematic view of a partial structure of the self-locking mechanism of the present invention;

fig. 5 is a schematic view of the lock pin structure of the self-locking mechanism of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments, which are illustrative, not restrictive, and the scope of the invention should not be limited thereto.

A novel folding chair comprises a folding chair frame, a drawable canvas mechanism and a self-locking mechanism 8, wherein the folding chair frame comprises a chair back 9, a seat board frame 6, front chair legs 1, rear chair legs 11 and a folding connecting assembly 5, the seat board frame is a rectangular frame, one end of the seat board frame is hinged with the front chair legs through a rotating shaft 2, the chair back and the rear chair legs are integrally arranged, the folding connecting assembly is arranged in the middle of the seat board frame, one end of the folding connecting assembly is hinged with the front chair legs, the other end of the folding connecting assembly is hinged with the rear chair legs integrally arranged with the chair back, so that the folding of the chair is realized, the drawable canvas mechanism is further arranged in the seat board frame, the self-locking mechanism is further arranged at the upper part of the hinged part of the rear chair legs integrally arranged with the chair back of the folding connecting assembly;

the drawable canvas mechanism comprises a protective cylinder 3, a rotating shaft, a canvas 12, a supporting rod 7 and a hanging rod, the protective cylinder is arranged on one side in the seat frame, a rotating shaft is coaxially hinged in the protective cylinder, canvas is wound on the rotating shaft, one side of the protective cylinder is integrally provided with an opening, one end of the canvas is integrally provided with a strip-shaped pull ring 4, the pull ring is limited to clamp the opening of the protective cylinder, the other side in the seat plate frame is also horizontally provided with a support rod, a hanging rod is also horizontally arranged in the bottom plate frame at the lower part of the protection cylinder, the hanging rod is parallel to the support rod, a fixed hook is fixedly arranged on the hanging rod, in the specific implementation of the pull ring for fixing the canvas, a user pulls the pull ring to pull the canvas out of the protection cylinder, the pull rod is fixed on the suspension rod by winding the support rod, so that a two-layer canvas type seat plate is formed in the seat plate frame;

the self-locking mechanism comprises an unlocking shifting piece 8-1, a locking insertion piece 8-7, a lock main body 8-3, a spring 8-2, a connecting plate 8-6 and a self-locking insertion core 8-4, wherein the lock main body is fixedly arranged on the connecting plate, the self-locking insertion core penetrates through the lock main body and is inserted into an insertion core hole formed in the connecting plate, the front end of the self-locking insertion core is in a slope shape 8-5, the spring is coaxially sleeved on the self-locking insertion core and is limited between the lock main body and an upper convex position of the self-locking insertion core, one end of the locking insertion piece is hinged on the connecting plate, an insertion core hole 8-8 is also formed in the position, corresponding to the insertion core hole in the connecting plate, of the lock main body end part, the unlocking shifting piece is also coaxially hinged on the self-locking insertion core, when the self-locking mechanism is used, when opening the chair, the lock insertion piece rotates, presses on the slope of auto-lock pin front end for the auto-lock core pin withdraws from the core insertion hole on the connecting plate, and compression spring, when the lock insertion piece continues to rotate to the core insertion hole on it and the core insertion hole of connecting plate overlap, the auto-lock core insertion is rebounded under the spring action of spring promptly, insert in the core insertion hole, accomplish the auto-lock, when needs fold the chair in, only need with the hand will unblank the plectrum and push down, can unblank, and it is very convenient to use.

The utility model discloses in the implementation, in order to make things convenient for more easily when outwards pulling auto-lock pin with the hand, cup joint a rubber sleeve at the tail end of the plectrum of unblanking, during the use, only need press the plectrum of unblanking once with the finger, can open self-locking mechanism.

The utility model discloses in the implementation, for the life of protection bedplate frame self, all the cover has plastics cornerite 10 in the bight with the bedplate frame of the folding department of the back of the chair, prevents that the friction after folding between the relief angle of bedplate frame and the back of the chair from causing the fish tail, and the lacquer painting is damaged.

Although the embodiments of the present invention and the accompanying drawings are disclosed for illustrative purposes, those skilled in the art will appreciate that: various substitutions, changes and modifications are possible without departing from the spirit and scope of the present invention and the appended claims, and therefore, the scope of the present invention is not limited to the disclosure of the embodiments and the accompanying drawings.

Claims (4)

1. A novel folding chair is characterized in that: the foldable chair comprises a foldable chair frame, a drawable canvas mechanism and a self-locking mechanism, wherein the foldable chair frame comprises a chair back, a seat board frame, front chair legs, rear chair legs and a foldable connecting assembly, the front chair legs are hinged at one end of the seat board frame, the chair back and the rear chair legs are integrally arranged, the foldable connecting assembly is arranged in the middle of the seat board frame, one end of the foldable connecting assembly is hinged with the front chair legs, the other end of the foldable connecting assembly is hinged with the rear chair legs integrally arranged with the chair back, the drawable canvas mechanism is further arranged in the seat board frame, and the self-locking mechanism is further arranged at the upper part of the hinged part of the rear chair legs, where the foldable connecting assembly and the chair back are integrally;

but pull canvas mechanism includes a protection section of thick bamboo, pivot, canvas, bracing piece, hangs the pole, a protection section of thick bamboo is installed one side in the bedplate frame, coaxial hinge is equipped with in the protection section of thick bamboo the pivot, the winding has in the pivot the canvas, a protection section of thick bamboo one side integrated system has an opening, canvas one end integrated system has a rectangular shape pull ring, the pull ring is spacing to be blocked the opening of a protection section of thick bamboo, opposite side horizontal installation still in the bedplate frame the bracing piece, also horizontal installation has in the bedplate frame of a protection section of thick bamboo lower part hang the pole, hang the pole with the bracing piece is parallel, it is equipped with the fixed hook to hang admittedly on the pole, is used for fixing the pull ring of canvas.

2. The new folding chair as claimed in claim 1, wherein: the self-locking mechanism comprises an unlocking shifting piece, a locking insertion piece, a lock body, a spring, a connecting plate and a self-locking insertion core, wherein the lock body is fixedly arranged on the connecting plate, the self-locking insertion core penetrates through an insertion core hole formed in the lock body and inserted on the connecting plate, the front end of the self-locking insertion core is in a slope shape, the spring is coaxially sleeved on the self-locking insertion core and limited between the lock body and the upper protruding position of the self-locking insertion core, one end of the lock insertion piece is hinged on the connecting plate, an insertion core hole is also formed in the position, corresponding to the insertion core hole in the connecting plate, of the lock insertion core at the end of the lock body, and the unlocking shifting.

3. The new folding chair as claimed in claim 2, wherein: the tail end of the unlocking poking piece is sleeved with a rubber sleeve.

4. The new folding chair as claimed in claim 1, wherein: the corners of the seat board frame are wrapped with plastic wrap angles.

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