CN212307297U

CN212307297U - Portable seat and chair frame thereof

Info

Publication number: CN212307297U
Application number: CN202020820356.0U
Authority: CN
Inventors: 严青连
Original assignee: Shenzhen Weimei Yixun Network Technology Co ltd
Current assignee: Shenzhen Weimei Yixun Network Technology Co ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2021-01-08
Anticipated expiration: 2030-05-15

Abstract

The utility model discloses a portable chair and a chair frame thereof, wherein the chair frame comprises a central locking block and a supporting device, the central locking block is of a hollow structure, a locking piece is arranged in the middle part of the chair frame, and the locking piece comprises a fixed seat and a button; the supporting device comprises four supporting legs and four supporting rods, a button is pressed down, the head ends of the supporting legs are separated from the clamping of the fixing base, the supporting legs rotate downwards under the action of the torque spring and are opened synchronously by utilizing the tooth-shaped structure, and the fixing base is returned under the action of the pressure spring after being separated from the clamping groove and is clamped with the head ends again through another clamping groove. The utility model can realize the opening and closing of the seat only by pressing the button and rotating the support rod, and has simple operation; the support rod is attached to the support leg, so that the structure is simplified, and the weight is reduced; the supporting legs and the supporting rods control the sitting height of the chair seat together, and occupy smaller space; the centers of gravity of the supporting legs and the supporting rods are uniform and are all located on the central locking block, and the side turning is not easy to happen under the unstable ground condition.

Description

Portable seat and chair frame thereof

Technical Field

The utility model relates to the technical field of articles for daily use, concretely relates to portable seat and chair frame thereof.

Background

Portable seat often uses when people's outdoor leisure, like occasions such as fishing, picnic, climbing mountain, for convenient carrying, this type of seat is collapsible or telescopic to reduce the volume through folding when not using, save storage space.

For example, the chinese patent application CN105919322A discloses a "portable seat", which comprises a support frame and a seat surface, wherein the support frame comprises a support rod, a left back tee joint, a right back tee joint, a left seat tee joint and a right seat tee joint, and the support rod comprises two front foot rods, two rear foot rods, two seat rods, two back rods and a cross rod. Accomodate after can dismantling between each bracing piece, small, convenient to carry, bin penguin support frame has two kinds of fold condition and can select.

However, the above patent application still has the following problems:

(1) when each supporting rod is stored, the supporting rods need to be disassembled and operated, and when the supporting rods are reused, the supporting rods need to be installed, the number of the supporting rods and the connecting pieces is too large, and the use is complicated;

(2) the supporting rods adopt a left-right grouping structure, the balance of two sides is difficult to guarantee, the connecting rod in the middle bears larger pressure, and the side turning is easy to happen under the condition of unstable ground;

(3) the height of seat has decided human seat height and travelling comfort, and the length of the high each support rod that adopts of seat controls for the length of support rod is great, is unfavorable for accomodating.

In view of the above, there is a need to improve the folding structure of the existing portable seat to simplify the structure and improve the stability and folding effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that the folding structure of the prior portable chair frame has the problems of complex structure, poor stability and poor folding effect.

In order to solve the technical problem, the utility model adopts the technical scheme that a portable chair frame is provided, include:

the central locking block is of a hollow structure, a locking piece is arranged in the middle of the central locking block, four connecting holes are formed in the periphery of the central locking block, the locking piece comprises a fixed seat and a button, the fixed seat is arranged in the center of the top surface of the central locking block, and an integrally formed sleeve is arranged at the lower part of the fixed seat; the button penetrates through the bottom surface of the central locking block and enters the sleeve after being installed in the pressure spring, the button is vertically arranged in the sleeve in a sliding mode, and the sliding stroke is limited by a boss in the sleeve;

the supporting device comprises four supporting legs and four supporting rods, each supporting leg is rotatably arranged in the corresponding connecting hole through a first torsion spring, each supporting rod is rotatably arranged on the corresponding supporting leg through a second torsion spring, the head end of each supporting leg is clamped with the fixed seat through one clamping groove, and each head end is provided with a tooth-shaped structure which is meshed with each other;

the button is pressed, the clamping groove is separated from the clamping of the fixing seat, the supporting leg rotates downwards under the action of the first torsion spring and is synchronously opened by utilizing a tooth-shaped structure, the fixing seat is separated from the clamping groove and then returns to the original position under the action of the pressure spring, the clamping groove is clamped with the head end again through another clamping groove, and the limiting is realized when the supporting leg is in an opening state.

In another preferred embodiment, the supporting rod is a telescopic embedded structure and comprises at least two telescopic sections, each telescopic section is a hollow tube, each telescopic section is provided with an ejection button for positioning, and the telescopic sections retract into or extend out of the adjacent telescopic sections when the ejection buttons are pressed down.

In another preferred embodiment, a connection angle is arranged between each two connection holes, the head end is provided with a shaft hole, a rotating shaft penetrates through the connection angle and the shaft hole, the rotating shaft is sleeved with the first torsion spring, one extending end of the torsion spring is arranged at the head end, and the other extending end of the torsion spring is arranged at the connection angle.

In another preferred embodiment, the head end is provided with a first positioning groove for accommodating the first torsion spring, the first positioning groove is arranged around the shaft hole, the side wall of the connecting corner is provided with a second positioning groove for accommodating the first torsion spring, and the two protruding ends are respectively inserted into the first positioning groove and the second positioning groove.

In another preferred embodiment, the supporting leg is provided with a groove along the length direction thereof, the rotating end of the supporting rod is arranged at the upper part of the groove, and the depth of the groove is greater than the thickness of the supporting rod.

In another preferred embodiment, the connecting angle is provided with an upper horizontal plate and a lower horizontal plate, and the two horizontal plates are provided with through holes.

In another preferred embodiment, the outer end of the most distal telescopic section is provided with a through hole for the connection rope of the seat to pass through and fix.

In another preferred embodiment, the bottom of the supporting leg is provided with an end seal, the end seal is provided with a matching groove which is dominant by the supporting leg, and the bottom surface of the end seal is provided with anti-skid wavy grains.

The utility model also discloses a portable seat, portable chair frame including detachable seat and above-mentioned structure, the four corners of seat with the end of bracing piece is fixed.

In another preferred embodiment, the seat surface is a fabric sheet, and a hollow-out area is arranged corresponding to the back of the user.

Compared with the prior art, the supporting device of the utility model comprises four supporting legs, each supporting leg is provided with a supporting rod, when in use, the button is pressed, under the double acting force of the first torsion spring and the tooth-shaped structure, the four supporting legs are synchronously linked downwards and opened and supported on the ground, the supporting rods are rotated upwards and opened, and the chair seat is spread along with the opening of the supporting rods and can be seated on the chair seat; when accomodating, each bracing piece rotate the return to with parallel with the supporting leg, also upwards rotate the supporting leg to the state of drawing in again, supporting leg head end draw-in groove card this moment goes into the fixing base bottom, realizes that the supporting leg can not automatically bounce open when the state of drawing in, the seat parcel is in strutting arrangement's inside this moment, and this structure has following advantage:

1. the seat can be opened only by pressing the button, the supporting rod can be folded by rotating the supporting rod, the supporting legs are linked through a tooth-shaped structure when the seat is opened, the integrity is strong, parts do not need to be manually installed and detached, and the operation is very simple;

2. the support rods are attached to the support legs, the central locking block is only connected with the four support legs, connecting pieces among the support devices are reduced, the structure is greatly simplified, the components are reduced, and the weight is reduced;

3. the supporting legs and the supporting rods control the sitting height of the chair seat together, the supporting rods are in a retraction state when being stored, the length of the supporting rods is greatly reduced, and the whole chair is smaller in volume and especially higher than a traditional portable chair after being stored through the design, so that the chair is more convenient to carry and occupies smaller space;

4. the centrobaric of supporting leg and bracing piece is unified, all on central latch segment, has avoided needing to adopt the connecting rod to connect the centrobaric structure in both sides among the prior art, and more be difficult to turn on one's side under the unstable condition in ground.

Drawings

Fig. 1 is a perspective view of the portable seat of the present invention after being opened;

fig. 2 is a schematic view of the storage state of the portable seat of the present invention;

fig. 3 is a top view of the central locking block of the present invention;

fig. 4 is an exploded view of the central locking block of the present invention;

FIG. 5 is a schematic structural view of the support leg and the support rod of the present invention;

FIG. 6 is a schematic structural view of the head end of the support leg of the present invention;

fig. 7 is a schematic structural view of the chair seat of the present invention.

Detailed Description

The utility model provides a portable seat and chair frame thereof, it is right to combine the description attached drawing and detailed implementation mode below to make detailed description.

As shown in fig. 1, the utility model provides a portable chair frame, which comprises a central locking block 10 and a supporting device.

As shown in fig. 3 and 4, the central locking block 10 has a hollow structure, a locking member is disposed at the middle portion, and four connecting holes 11 are disposed at the periphery. The locking piece comprises a fixed seat 101 and a button 102, the fixed seat 101 is arranged in the center of the top surface of the central locking block 10, and the lower part of the fixed seat is provided with an integrally formed sleeve; the button 102 is installed in the pressure spring and then penetrates through the bottom surface of the central locking block 10 to enter the sleeve, the button 102 is vertically and slidably arranged in the sleeve, and the sliding stroke is limited by a boss in the sleeve. The strength of the central locking block 10 is improved by locking the locking piece, and the combined structure of the fixed seat 101 and the button 102 does not occupy extra space, does not influence the rotation track of the supporting leg 20, and improves the degree of structural compactness.

As shown in fig. 5, the supporting device includes four supporting legs 20 and four supporting rods 30, each supporting leg 20 is rotatably disposed in the corresponding connecting hole 11 through a first torsion spring 213, each supporting rod 30 is rotatably disposed on the corresponding supporting leg 20 through a second torsion spring, the head end 21 of the supporting leg 20 is engaged with the fixing seat 101 through one of the engaging slots 210, and each head end 21 is provided with an engaging tooth-shaped structure 214.

The button 102 is pressed, the clamping groove 210 of the head end 21 of the supporting leg 20 is separated from the clamping of the fixed seat 101, the supporting leg 20 rotates downwards under the action of the first torsion spring 213 and is opened synchronously by using the tooth-shaped structure 214, after the fixed seat 101 is separated from the tooth-shaped structure 210, the supporting leg 20 returns under the action of the pressure spring and is clamped with the head end 21 again through another clamping groove 210, and the limiting is realized when the supporting leg 20 is in an opened state.

The utility model discloses in, utilize button 102 to change the head end 21 of supporting leg 20 and the block state of connecting hole 11 to realize the expansion and draw in of supporting leg 20. The central locking block 10 is used for connecting the supporting device together, and four connecting holes 11 are symmetrically arranged to provide a structural foundation for the installation of the supporting device. The support bar 30 is rotatably provided at the upper portion of the support leg 20 near the center locking piece 10 so that the center of gravity of the upper seat and the weight of the user is also concentrated on the center locking piece 10.

In another preferred embodiment, the supporting rod 30 is a retractable embedded structure, and includes at least two retractable sections, each of which is a hollow tube, each of which is provided with an ejecting button 31 for positioning, and the retractable section retracts into or extends out of the adjacent retractable section when the ejecting button 31 is pressed. In this embodiment, the ejection button 31 is used to position the telescopic sections, thereby preventing the telescopic sections from retracting uncontrollably. The telescopic section is a hollow tube, so that the processing of the embedded structure is convenient, and the weight can be reduced. The support legs 20 and the support rods 30 can be made of metal materials such as stainless steel, and are light in weight and high in strength.

In another preferred embodiment, as shown in fig. 4 and 6, a connecting angle 12 is provided between each connecting hole 11, a shaft hole 211 is provided at the head end 21 of the supporting leg 20, a rotating shaft passes through the connecting angle 12 and the shaft hole 211, the rotating shaft is sleeved with the first torsion spring 213, one protruding end of the first torsion spring 213 is disposed at the head end 21, and the other protruding end is disposed at the connecting angle 12. In this embodiment, the connecting angle 12 is a central locking block 10, the strength is improved, the head end 21 of each supporting leg 20 is arranged on the connecting angle 12 through a rotating shaft, and the two extending ends of the first torsion spring 213 provide power for the rotation of the supporting leg 20 when the supporting leg 20 rotates.

Further, the head end 21 is provided with a first positioning groove 212 for accommodating the first torsion spring 213, the first positioning groove 212 is disposed around the shaft hole 211, the sidewall of the connecting corner 12 is provided with a second positioning groove 16 for accommodating the first torsion spring 213, and the two protruding ends are respectively inserted into the first positioning groove 212 and the second positioning groove 16. In the embodiment, the first and second positioning grooves 212 and 16 are used to accommodate the torsion spring while providing a space for fixing the first torsion spring 213.

In another preferred embodiment, as shown in fig. 5, the support leg 20 is provided with a groove 22 along the length thereof, the rotation end of the support rod 30 is provided at the upper portion of the groove 22, and the depth of the groove 22 is greater than the thickness of the support rod 30. In this embodiment, the groove 22 of the supporting leg 20 provides a receiving space for the supporting rod 30, and in the storage state, the supporting rod 30 does not occupy additional space, thereby further saving space.

In another preferred embodiment, as shown in fig. 4, the connecting angle 12 is provided with two upper and lower horizontal plates 121, and the two horizontal plates 121 are provided with through holes. In this embodiment, the horizontal plate 121 on the connecting corner 12 not only plays a reinforcing role, but also can be threaded through a through hole, and is convenient to carry.

In another preferred embodiment, as shown in fig. 5, the outer end of the endmost telescoping section is provided with a perforation 32, and the perforation 32 is used for the connection rope of the seat to pass through and fix. In this embodiment, the through hole 32 is used to fix the seat, and other fixing structures may be provided as needed.

In another preferred embodiment, the bottom of the supporting leg 20 is provided with an end seal 23, the end seal 23 is provided with a matching groove which is dominant to the supporting leg 20, and the bottom surface of the end seal 23 is provided with anti-skid raised grains. In this embodiment, the end seal 23 is used for anti-slip and strength enhancement, and is convenient to use in various occasions, and prevents the support leg 20 from cracking or being corroded.

As shown in fig. 1 and 7, the utility model also discloses a portable chair, which comprises a detachable chair surface 40 and a portable chair frame with the above structure, wherein the four corners of the chair surface 40 are fixed with the ends of the supporting rods 30. The seat 40 pulls the end of the support rod 30, so that the support rod 30 is balanced by the combined force of the second torsion spring and the seat 40.

Further, the seat surface 40 is a fabric sheet, and a hollow area 41 is disposed corresponding to the back of the user. In this embodiment, the hollow area 41 is disposed on the back, and has a certain elasticity, so that users with different shapes can be protected well.

The utility model discloses a method of use (working process) as follows:

(1) open seat

As shown in fig. 1, when the button 102 is pressed, under the action of the first torsion spring 213, the button 102 separates the slots 210 of the head ends 21 of the support legs 20 from the fixing base 101, the four support legs 20 are synchronously opened by downward linkage through the tooth-shaped structure 214 and supported on the ground, and after the fixing base 101 is separated from the tooth-shaped structure 210, the four support legs are returned under the action of the pressure spring and are clamped into the other slot 210 of the head end 21, so that the four support legs 20 are in a stable state when in an opened state and cannot rotate under the action of a force. The supporting rod 30 is rotated upwards to be opened, and the telescopic sections are pulled out, so that the chair seat 40 can be spread along with the opening of the supporting rod 30, and then the user can sit on the chair seat 40.

At this time, the chair frame is in a basin shape, and four corners of the chair surface 40 are connected and fixed at the top ends of the four upward fixed supporting rods 30 to form the chair surface 40 for supporting the human body. Meanwhile, the downward four supporting legs 20 at fixed positions form chair legs, so that the chair keeps the ground clearance and ensures the sitting comfort.

(2) Storage seat

As shown in FIG. 2, when the supporting rod 30 is stored, the push button 31 is pushed to contract the three telescopic sections into one section, and then the supporting rod is rotated downwards to be embedded in the groove 22 of the supporting leg 20. Accomplish above-mentioned step and make eight strutting arrangement accomodate for four supporting legs 20, inwards accomodate and close up and form a columnar body, simultaneously, supporting leg 20 head end 21 and fixing base 101 block again, realize that supporting leg 20 can not automatic spring out when drawing in the state. The seat 40 is folded inside by four support brackets.

The utility model discloses, let whole chair accomodate the back volume and be littleer than traditional portable chair, can provide suitable sitting height when opening, occupy littleer space when accomodating, it is more convenient to carry, moreover because supporting framework has adopted more simple firm effectual structure, has reduced the component, and weight alleviates by a wide margin.

The present invention is not limited to the above-mentioned best mode, and any person should learn the structural change made under the teaching of the present invention, all with the present invention has the same or similar technical solution, all fall into the protection scope of the present invention.

Claims

1. A portable chair frame, comprising:

2. The portable chair frame according to claim 1, wherein the supporting rod is a telescopic embedded structure and comprises at least two telescopic sections, each telescopic section is a hollow tube, each telescopic section is provided with an ejection button for positioning, and the telescopic sections retract into or extend out of the adjacent telescopic sections when the ejection buttons are pressed.

3. The portable chair frame according to claim 1, wherein a connecting angle is provided between each connecting hole, the head end is provided with a shaft hole, a rotating shaft passes through the connecting angle and the shaft hole, the rotating shaft is sleeved with the first torsion spring, one extending end of the torsion spring is arranged at the head end, and the other extending end of the torsion spring is arranged at the connecting angle.

4. The portable chair frame according to claim 3, wherein the head end is provided with a first positioning groove for accommodating the first torsion spring, the first positioning groove is arranged around the shaft hole, the side wall of the connecting corner is provided with a second positioning groove for accommodating the first torsion spring, and the two protruding ends are respectively inserted into the first positioning groove and the second positioning groove.

5. The portable chair frame according to claim 1, wherein the supporting leg is provided with a groove along a length direction thereof, the rotating end of the supporting rod is disposed at an upper portion of the groove, and a depth of the groove is greater than a thickness of the supporting rod.

6. The portable chair frame according to claim 3, wherein the connecting angle is provided with an upper horizontal plate and a lower horizontal plate, and the two horizontal plates are provided with through holes.

7. The portable chair frame according to claim 2, wherein the outer end of the most distal telescopic section is provided with a through hole for the connection rope of the chair seat to pass through and be fixed.

8. The portable chair frame according to claim 1, wherein the bottom of the supporting leg is provided with an end seal, the end seal is provided with a matching groove which is dominant by the supporting leg, and the bottom surface of the end seal is provided with anti-skid raised grains.

9. A portable chair, characterized by comprising a detachable chair surface and a portable chair frame according to any one of claims 1-8, wherein four corners of the chair surface are fixed with the tail ends of the supporting rods.

10. The portable chair according to claim 9, wherein the seat surface is a fabric sheet and has a hollow area corresponding to the back of the user.