Multifunctional folding chair

Abstract

Disclosed is a multifunctional folding chair, comprising: a seat support (1), a reinforcing rod (23), first support rods (21), and second support rods (22); a support member (24) is sleeved at the middle of the reinforcing rod (23), and the first support rods (21) pivot with the support member (24); a sleeve (25) is mounted at the intersection of the two first support rods (21), the reinforcing rod (23) is movably arranged within the sleeve (25), and a locking mechanism (5) capable of locking and unlocking is arranged between the reinforcing rod (23) and the sleeve (25). By means of the first support rods (21) and the reinforcing rod (23), supportive and protective effects on a chair back can be achieved during opening, and overall stability can be improved; a chair frame body can be assisted in folding and unfolding by means of the sleeve (25) and the locking mechanism (5); by pulling the reinforcing rod (23), single step folding or unfolding can be achieved, and less energy is spent opening the folding chair, to the point that a frail or elderly person can fold / unfold the folding chair alone. The present invention finds a perfect solution for the problem in the prior art of folding chairs being hard to fold and unfold.

Description

Multifunctional folding chair Technical Field

[0001] The utility model relates to the technical field of folding chairs, in particular to a multifunctional folding chair. Background Art

[0002] With the continuous improvement of people's living standards, the camping economy has become popular, and the camping industry has begun to shift towards sophistication and youthfulness, which is a natural guide to the personalized needs of modern young consumers.

[0003] The once rigid outdoor camping equipment has been transformed into a ritualistic and atmospheric activity. Camping chairs are widely used for resting during camping. Folding easily into a trunk, they offer portability and maximize space utilization. However, existing folding chairs on the market are limited in functionality, offering limited storage capacity and inability to transport other items needed outdoors. This lack of flexibility hinders the user experience. Technical issues

[0004] The utility model provides a multifunctional folding chair which has a simple structure, is easy to move, has good stability and is easy to fold. Technical Solutions

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a multifunctional folding chair, comprising a chair frame body, the chair frame body comprising a seat bracket and a backrest bracket pivotally connected to each other, the seat bracket and the backrest bracket are connected to each other by a connecting rod, and the orientation of the backrest is defined as up and the orientation of the seat is down, the backrest bracket comprises a reinforcing rod, two first support rods and two second support rods arranged crosswise with each other, the middle part of the reinforcing rod is sleeved with a support member, one end of the two first support rods is respectively pivoted to the upper end part of the two second support rods, and the other end is respectively pivoted to the two sides of the support member, the two first support rods are symmetrically arranged on both sides of the reinforcing rod, and a sleeve is installed at the intersection of the two second support rods, the reinforcing rod is movably arranged in the sleeve, and a locking mechanism that can be locked and unlocked is provided between the reinforcing rod and the sleeve.

[0006] Preferably, the reinforcing rod is provided with a first through hole passing through the side wall of the reinforcing rod, the sleeve is provided with a second through hole passing through the side wall of the sleeve, the reinforcing rod has a cavity, the locking mechanism is arranged in the cavity, and has a protrusion that can protrude from the first through hole, the protrusion passes through the first through hole and locks into the second through hole to realize the locking connection between the reinforcing rod and the sleeve.

[0007] Preferably, the locking mechanism is an elastic member, which is a U-shaped spring sheet. One end of the spring sheet is fixed against the inner wall of the reinforcing rod, and the other end is a movable end and has the protrusion. When locked, the protrusion is locked into the second through hole, and when unlocked, the protrusion withdraws from the second through hole.

[0008] Preferably, the locking mechanism also includes a button, a groove for installing the button is provided on one side of the sleeve, the second through hole passes through the groove, a waist-shaped hole is provided in the middle of the button along the axial direction of the second through hole, and a clamping column is provided on the side of the sleeve corresponding to the waist-shaped hole, the clamping column can be arranged in the waist-shaped hole so as to move back and forth along the axial direction of the second through hole, and a reset spring for reset is also provided between the clamping column and the second through hole.

[0009] Preferably, the support member has two support units for mounting the two first support rods respectively, the support units are used to provide support force in the opening direction of the first support rods, and the support units are U-shaped.

[0010] Preferably, the upper end portion of the reinforcing rod is provided with a hand-held portion for pulling / folding the chair frame body.

[0011] Preferably, it also includes a first connecting member, a second connecting member and a third connecting member, the connecting rod includes a first connecting rod, a second connecting rod and a third connecting rod, the upper end of the first connecting rod is pivotally connected to the upper end of the first support rod and the second support rod respectively through the first connecting member, and the lower end is pivotally connected to the lower end of the second connecting rod and the lower end of the seat bracket respectively through the second connecting member, the upper end of the second connecting rod is pivotally connected to the upper end of the third connecting rod, and is pivotally connected to the upper end of the seat bracket through the third connecting member, and the lower end of the third connecting rod is pivotally connected to the lower end of the second support rod.

[0012] Preferably, it also includes a roller, and the roller outer shell is provided with a U-shaped fourth connecting member, the fourth connecting member includes a first connecting piece arranged on one side of the outer periphery of the roller and a second connecting piece connected on both sides of the first connecting piece, the two second connecting pieces are respectively arranged on both sides of the roller and are pivotally connected to the wheel axle of the roller, the lower end of the second support rod is pivotally connected to one of the second connecting pieces, and the lower end of the third connecting rod is fixedly set on the first connecting piece.

[0013] Preferably, it also includes a first chair cloth arranged on the chair frame body, a first insert pocket is provided at the upper end of the first chair cloth, a second insert pocket is provided at the lower end of the first chair cloth, the two first insert pockets are respectively connected to the upper ends of the two first connecting rods to form a chair back, and the two second insert pockets are respectively connected to the upper ends of the two third connecting rods to form a chair seat.

[0014] Preferably, a second chair cloth is sewn to the lower end of the first chair cloth, and a storage space for placing items is formed between the second chair cloth and the seat. Beneficial effects

[0015] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0016] 1. The first support rod and the reinforcing rod can support and protect the chair back when it is opened, thereby improving the overall stability without affecting the folding and storage of the folding chair;

[0017] 2. The locking mechanism can fix the folding chair when unfolded. By pulling the reinforcing rod, the first support rod, the second support rod and the linked connecting rod can be driven to unfold or fold, and the seat bracket is in a linked state, realizing one-step unfolding or folding, which is convenient and fast.

[0018] 3. When folded, the utility model can be placed in the trunk, making it easy to carry and maximizing space utilization. When unfolded, it can provide a chair for the user to rest. At the same time, the wheels and the second seat fabric can also be used as a tool for transporting items, thus facilitating transportation and storage.

[0019] 4. The utility model combines a chair and a storage box into one, which is suitable for use by the elderly and infirm, such as when buying groceries, shopping, or queuing to watch the World Expo. It can be used to store things and sit down to rest when tired. It is a dual purpose and is easy to produce and promote. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of the utility model in an expanded state;

[0021] FIG2 is a structural schematic diagram of the chair frame body of the present invention in an unfolded state;

[0022] FIG3 is a cross-sectional view of the chair frame body of the present invention in an expanded state;

[0023] FIG4 is a structural schematic diagram of the chair frame body of the present invention in a folded state;

[0024] In the figure: seat bracket 1, first seat rod 11, second seat rod 12, chair back bracket 2, first support rod 21, second support rod 22, reinforcement rod 23, first through hole 231, support member 24, support unit 241, sleeve 25, second through hole 251, groove 252, clamping column 253, hand-held part 26, connecting rod 3, first connecting rod 31, second connecting rod 32, third connecting rod 33, first connecting member 41, second connecting member 42, third connecting member 43, fourth connecting member 44, first connecting piece 441, second connecting piece 442, fifth connecting member 45, locking mechanism 5, button 51, waist-shaped hole 511, return spring 512, elastic member 52, protrusion 521, roller 6, first chair cloth 71, first insert pocket 711, second insert pocket 712, second chair cloth 72, accommodating space 73. Best Mode for Carrying Out the Invention

[0025] The following is a clear and complete description of the technical solutions in the embodiments of the present invention, in conjunction with the accompanying drawings. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0026] Refer to Figures 1 to 4

[0027] For the convenience of description, the orientation of the chair back is defined as up, and the orientation of the chair seat is defined as down.

[0028] A multifunctional folding chair includes a chair frame, which includes a seat frame 1 and a backrest frame 2 that are cross-connected and pivotally connected to each other. The seat frame 1 and the backrest frame 2 are connected to each other via a connecting rod 3. It is worth noting that the connection and structure of the seat frame 1, the backrest frame 2, and the connecting rod 3 in this embodiment can also refer to the structure of the chair frame in the prior art. In this embodiment, only one embodiment is provided, and other applicable embodiments are not described in detail here.

[0029] The seat frame 1 includes two seat rods arranged crosswise with each other, each comprising a first seat rod 11 and a second seat rod 12. A fifth connecting member 45 is slidably mounted on the second seat rod 12. The first seat rod 11 is pivotally connected to one side of the fifth connecting member 45. The fifth connecting member 45 forms a retractable seat rod between the first and second seat rods 11, 12, to reduce space occupied when folded. It is worth noting that in this embodiment, the seat rod can also be a single rod, which will not be discussed in detail here.

[0030] The chair back support 2 comprises a reinforcing rod 23, two first support rods 21, and two cross-arranged second support rods 22. A support member 24 is sleeved in the middle of the reinforcing rod 23. Specifically, the support member 24 comprises two support units 241, each for mounting the two first support rods 21. The two support units 241 are symmetrically arranged in a U-shape on either side of the support member 24. The two first support rods 21 are positioned within the support units 241, providing support for the first support rods 21 in their respective directions of expansion. When the reinforcing rod 23 is pulled upward, the two first support rods 21 unfold. As the reinforcing rod 23 continues to be pulled upward, the two first support rods 21 are restrained by the bottom of their corresponding U-shaped support units 241. The bottom of the support units 241 limits the relative opening angle between the corresponding first support rods 21 and the reinforcing rod 23. At this point, the folding chair is in its most open position, and is then secured by a locking mechanism 5 (described in more detail below). It is worth noting that in this embodiment, the support member 24 can be integrally injection molded during production; of course, the support unit 241 and the support member 24 can also be injection molded separately, and then the two can be relatively fixedly connected together by fusion, welding or threaded connection. The specific implementation method can be selected and used according to actual conditions for easy operation.

[0031] One end of each of the two first support rods 21 is pivotally connected to the upper end of each of the two second support rods 22, and the other end is pivotally connected to the two support units 241 of the support member 24, so that when the reinforcement rod 23 is pulled, the first support rods 21 and the second support rods 22 can move in conjunction. A sleeve 25 is installed at the intersection of the two second support rods 22, and the reinforcement rod 23 is movably mounted within the sleeve 25. A locking mechanism 5 is provided between the reinforcement rod 23 and the sleeve 25, which can be locked and unlocked.

[0032] Furthermore, the reinforcing rod 23 is provided with a first through hole 231 that passes through the side wall of the reinforcing rod 23, and the sleeve 25 is provided with a second through hole 251 that passes through the side wall of the sleeve 25. The reinforcing rod 23 has a cavity therein, and the locking mechanism 5 is arranged in the cavity and has a protrusion 521 that can protrude from the first through hole 231 (which will be described in detail below). The protrusion 521 passes through the first through hole 231 and locks into the second through hole 251 to achieve locking between the reinforcing rod 23 and the sleeve 25.

[0033] Furthermore, the locking mechanism 5 consists of a button 51 and an elastic member 52. The elastic member 52 is a U-shaped spring piece. One end of the spring piece is fixed against the inner wall of the cavity of the reinforcing rod 23, and the other end is a movable end and has a protrusion 521. When locked, the protrusion 521 is locked into the second through hole 251, and when unlocked, the protrusion 521 withdraws from the second through hole 251.

[0034] A groove 252 for installing the button 51 is provided on one side of the sleeve 25, and the second through hole 251 passes through the groove 252. A waist-shaped hole 511 is provided in the middle of the button 51 along the axial direction of the second through hole 251. A clamping column 253 is provided on one side of the sleeve 25 corresponding to the waist-shaped hole 511. The clamping column 253 can be moved back and forth in the axial direction of the second through hole 251 in the waist-shaped hole 511, and a reset spring 512 for reset is also provided between the clamping column 253 and the waist-shaped hole 511.

[0035] Pressing the button 51 causes the bottom of the button 51 and the protrusion 521 to pop out of the second through hole 251 or lock into the second through hole 251. When expanded, the protrusion 521 passes through the first through hole 231 and locks into the second through hole 251, thus locking the reinforcing rod 23 and the sleeve 25. When collapsed, pressing the button 5171 causes the bottom of the button 51 to squeeze the protrusion 521 back and release it from the second through hole 251.

[0036] It is worth noting that the button 51 of the present invention is not limited to the button 51 described above, as long as it can lock the protrusion 521 into or unlock the second through hole 251, which will not be described in detail here.

[0037] Furthermore, a hollow handle 26 is provided at the upper end of the reinforcing rod 23. The handle 26 is used to pull and fold the chair frame. The handle 26 provided in this embodiment facilitates the integrated deployment and folding of the present invention. Furthermore, the handle 26 is located at the upper end of the reinforcing rod 23. Compared to conventional folding chairs, this embodiment can be deployed and folded simply by pulling up or pushing down the handle 26 when standing.

[0038] Furthermore, this embodiment also includes a first connecting member 41, a second connecting member 42, a third connecting member 43 and a connecting rod 3 for connecting the seat bracket 1 and the backrest bracket 2, the connecting rod 3 including a first connecting rod 31, a second connecting rod 32 and a third connecting rod 33, the upper end of the first connecting rod 31 is pivotally connected to the upper ends of the first support rod 21 and the second support rod 22 respectively through the first connecting member 41, and the lower end is pivotally connected to the lower end of the second connecting rod 32 and the lower end of the seat bracket 1 respectively through the second connecting member 42, the upper end of the second connecting rod 32 is pivotally connected to the upper end of the third connecting rod 33, and is pivotally connected to the upper end of the seat bracket 1 through the third connecting member 43, and the lower end of the third connecting rod 33 is pivotally connected to the lower end of the second support rod 22.

[0039] Furthermore, this embodiment also includes a roller 6, and the outer cover of the roller 6 is provided with a U-shaped fourth connecting member 44, and the fourth connecting member 44 includes a first connecting piece 441 arranged on one side of the outer periphery of the roller 6 and a second connecting piece 442 connected on both sides of the first connecting piece 441. The two second connecting pieces 442 are respectively arranged on both sides of the roller 6 and are pivotally connected to the wheel axle of the roller 6. The lower end of the second support rod 22 is pivotally connected to one of the second connecting pieces 442, and the lower end of the third connecting rod 33 is fixedly set on the first connecting piece 441.

[0040] Furthermore, a first chair cloth 71 may be connected to the chair frame body, and the first chair cloth 71 is connected and supported on the chair frame body. First insert pockets 711 are provided on both sides of the upper end of the first chair cloth 71, and second insert pockets 712 are provided on both sides of the lower end of the first chair cloth 71. The two first insert pockets 711 are respectively sleeved on the upper ends of the two first connecting rods 31. The upper end of the first chair cloth 71 forms a chair back that is convenient for users to use after the chair back bracket 2 is unfolded; the two second insert pockets 712 are respectively sleeved on the upper ends of the two third connecting rods 33. The lower end of the first chair cloth 71 forms a chair seat that is convenient for users to use after the seat bracket 1 is unfolded, and the first chair cloth 71 is unfolded accordingly when the chair frame body is unfolded.

[0041] Furthermore, a second chair cloth 72 is sewn to the lower end of the first chair cloth 71, and a storage space 73 for placing items is formed between the second chair cloth 72 and the seat. When the user is camping outdoors, this embodiment can replace the camper to transport other camping equipment, as shown in Figure 1, and by pulling the present invention with the handle 26 and the roller 6, it can facilitate transportation and storage, and it is convenient to pull the present invention; when arriving at the destination, the handle 26 can be pulled upward to form a chair for the user to rest; when finishing camping, the handle 26 can be pushed downward to completely fold it. After folding, it is easy to place in the trunk, which is more convenient to carry and can maximize the use of space. The folding chair of the present invention is also particularly suitable for the elderly and the weak, such as buying groceries, shopping, or queuing to watch the World Expo. It can be used to store things and sit down to rest when tired, serving two purposes.

[0042] When the chair frame body is unfolded, the hand-held part 26 is pulled upward to drive the first support rod 21 set in the two support units 241 to unfold, and drive the second support rod 22 that crosses each other to unfold, and the reinforcing rod 23 moves upward along the sleeve 25 until the protrusion 521 is set in the second through hole 251, and the chair frame body can be unfolded and fixed; when the chair frame body is folded, it is only necessary to withdraw the protrusion 521 from the second through hole 251 through the button 51 to complete the unlocking, and pull the sleeve 25 downward so that the sleeve 25 slides downward on the reinforcing rod 23, that is, the two first support rods 21 are folded downward, driving the second support rod 22 that crosses each other to fold, and driving the connecting rod 3 and the seat bracket 2, that is, completing the folding of the hanger body.

[0043] By adopting the above-mentioned design scheme, the beneficial effects of the utility model are:

[0044] 1. The first support rod 21 and the reinforcing rod 23 can support and protect the chair back when it is opened, thereby improving the overall stability without affecting the folding and storage of the folding chair;

[0045] 2. The locking mechanism 5 can secure the folding chair when unfolded. By pulling the reinforcing rod 23, the first support rod 21, the second support rod 22 and the linked connecting rod 3 can be driven to unfold or fold, and the seat bracket 1 is in a linked state, realizing one-step unfolding or folding, which is convenient and quick;

[0046] 3. When folded, the utility model can be placed in the trunk, which is convenient to carry and can maximize the use of space; when unfolded, it can provide a chair for the user to rest; at the same time, the roller 6 and the second chair cloth 72 can also be used as a tool for transporting items, thereby facilitating transportation and storage.

[0047] 4. The utility model combines a chair and a storage box into one, which is suitable for use by the elderly and infirm, such as when buying groceries, shopping, or queuing to watch the World Expo. It can be used to store things and sit down to rest when tired. It is a dual purpose and is easy to produce and promote.

[0048] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A multifunctional folding chair, comprising a chair frame body, wherein the chair frame body comprises a seat bracket and a chair back bracket which are cross-pivoted to each other, wherein the seat bracket and the chair back bracket are connected to each other through a connecting rod, wherein the orientation of the chair back is defined as up and the orientation of the chair seat is defined as down, and wherein: The chair back support includes a reinforcing rod, two first support rods and two second support rods arranged crosswise with each other, a support piece is sleeved on the middle part of the reinforcing rod, one end of the two first support rods are respectively pivoted to the upper end parts of the two second support rods, and the other ends are respectively pivoted to the two sides of the support piece, the two first support rods are symmetrically arranged on both sides of the reinforcing rod, a sleeve is installed at the intersection of the two second support rods, the reinforcing rod is movably arranged in the sleeve, and a locking mechanism that can be locked and unlocked is arranged between the reinforcing rod and the sleeve.

2. The multifunctional folding chair according to claim 1, characterized in that: The reinforcing rod is provided with a first through hole penetrating through the side wall of the reinforcing rod, the sleeve is provided with a second through hole penetrating through the side wall of the sleeve, the reinforcing rod has a cavity inside, the locking mechanism is arranged in the cavity and has a protrusion that can protrude from the first through hole, the protrusion passes through the first through hole and is locked into the second through hole to achieve locking between the reinforcing rod and the sleeve.

3. The multifunctional folding chair according to claim 2, characterized in that: The locking mechanism is an elastic member, which is a U-shaped spring sheet. One end of the spring sheet is fixedly pressed against the inner wall of the reinforcing rod, and the other end is a movable end having the protrusion. When locked, the protrusion is locked into the second through hole, and when unlocked, the protrusion withdraws from the second through hole.

4. The multifunctional folding chair according to claim 3, characterized in that: The locking mechanism also includes a button, a groove for installing the button is provided on one side of the sleeve, the second through hole passes through the groove, a waist-shaped hole is provided in the middle of the button along the axial direction of the second through hole, a clamping column is provided on one side of the sleeve corresponding to the waist-shaped hole, the clamping column can be movably arranged in the waist-shaped hole along the axial direction of the second through hole, and a reset spring for reset is also provided between the clamping column and the second through hole.

5. The multifunctional folding chair according to claim 1, characterized in that: The support member has two support units for mounting the two first support rods respectively, the support units are used to provide support force in the opening direction of the first support rods, and the support units are U-shaped.

6. The multifunctional folding chair according to claim 1, characterized in that: The upper end of the reinforcing rod is provided with a hand-held portion for pulling / folding the chair frame body.

7. The multifunctional folding chair according to claim 1, characterized in that: The first connecting member further comprises a first connecting member, a second connecting member and a third connecting member, wherein the connecting rod comprises a first connecting rod, a second connecting rod and a third connecting rod, wherein the upper end of the first connecting rod is respectively pivotally connected to the upper ends of the first support rod and the second support rod through the first connecting member, and the lower end is respectively pivotally connected to the lower end of the second connecting rod and the lower end of the seat support through the second connecting member, the upper end of the second connecting rod is pivotally connected to the upper end of the third connecting rod, and is pivotally connected to the upper end of the seat support through the third connecting member, and the lower end of the third connecting rod is pivotally connected to the lower end of the second support rod.

8. The multifunctional folding chair according to claim 7, characterized in that: It also includes a roller, and the roller outer shell is provided with a U-shaped fourth connecting member, the fourth connecting member includes a first connecting plate arranged on one side of the outer periphery of the roller and a second connecting plate connected to both sides of the first connecting plate, the two second connecting plates are respectively arranged on both sides of the roller and are pivotally connected to the wheel axle of the roller, the lower end of the second support rod is pivotally connected to one of the second connecting plates, and the lower end of the third connecting rod is fixedly set on the first connecting plate.

9. The multifunctional folding chair according to claim 7, characterized in that: It also includes a first chair cloth arranged on the chair frame body, a first insert pocket is arranged on the upper end of the first chair cloth, a second insert pocket is arranged on the lower end of the first chair cloth, the two first insert pockets are respectively connected to the upper ends of the two first connecting rods to form a chair back, and the two second insert pockets are respectively connected to the upper ends of the two third connecting rods to form a chair seat.

10. The multifunctional folding chair according to claim 9, characterized in that: A second chair cloth is sewn on the lower end of the first chair cloth, and a storage space for placing articles is formed between the second chair cloth and the seat.

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