Dual-purpose chair

Abstract

The utility model relates to a dual-purpose chair which comprises a frame, and the frame comprises a left vertical frame, a right vertical frame and a connecting assembly for connecting the two vertical frames, the left side and the right side of the seat panel are detachably connected with the two vertical frames respectively, the left side and the right side of the seat panel are parallel to each other, the edge of the front side and the edge of the rear side of the seat panel form a contact part respectively, one contact part is in a concave arc shape, and the other contact part is in a convex arc shape; and the enclosure is detachably connected with the frame and is positioned above the seat panel. The front side and the rear side of the seat panel are respectively provided with the contact part which is in the concave arc shape and the convex arc shape, and the concave arc-shaped contact parts are suitable for dining chairs used by young children and can give way to the legs of the children, so that the comfort level is improved; the convex arc-shaped contact part is suitable for learning chairs used by elderly children, and can effectively support legs, so that the elderly children do not feel tired after sitting for a long time.

Description

Technical Field

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

[0002] Children need to use dining chairs and study chairs as they grow up. For most families, the dining chairs are idle after the children grow up. For this reason, a Chinese utility model patent with announcement number CN216628063U discloses a multifunctional children's chair, which can remove the front frame and turn the dining chair into a study chair to extend its use cycle and be more economical.

[0003] However, since dining chairs are suitable for young children, while study chairs are suitable for older children, the requirements for seat panels for young children and older children are different. Young children have shorter legs, so the outer edge of the seat panel is required to be able to avoid the legs, making it more comfortable for young children to sit. For older children, the outer edge of the seat panel is required to effectively support the legs. Summary of the invention

[0004] In view of the defects in the prior art, the technical problem to be solved by the utility model is to provide a dual-purpose chair, whose seat panel has contact parts of two shapes, namely, concave and convex, which can meet the use needs of children of all ages.

[0005] In order to solve the above technical problems, the utility model provides a dual-purpose chair, including a frame, the frame including two upright frames arranged opposite to each other on the left and right and a connecting assembly connecting the two upright frames; a seat panel, the left and right sides of the seat panel are respectively detachably connected to the two upright frames, the left and right sides of the seat panel are parallel to each other, and the front and rear edges of the seat panel respectively form a contact portion, one of the contact portions is in an inwardly concave arc shape, and the other contact portion is in an outwardly convex arc shape; an enclosure, the enclosure is detachably connected to the frame and is located above the seat panel.

[0006] Preferably, a plurality of mounting areas are provided on a side of the vertical frame close to the seat panel, the heights of the respective mounting areas are different, and each mounting area includes at least two first threaded holes; a connecting portion is provided downwardly extending below the left and right sides of the seat panel, and at least two first connecting holes are provided through the connecting portion, and the first connecting hole and the first threaded hole are connected by screws.

[0007] Preferably, the first connecting hole is a strip-shaped hole, the length direction of the strip-shaped hole is parallel to the front-rear direction of the seat panel, and the screw is slidably fitted in the corresponding first connecting hole.

[0008] Preferably, a center line connecting the plurality of first threaded holes in the same installation area is an oblique line, the oblique line gradually slopes downward from front to back, and an angle between the oblique line and the horizontal plane is 2°-4°.

[0009] Preferably, the dual-purpose chair of the utility model further comprises a footrest, and a plurality of mounting positions detachably connected to the footrest are arranged on the vertical frame, and the heights of the mounting positions on the same vertical frame are different.

[0010] Preferably, the mounting position includes a limiting groove opened along the front-to-back direction, and the left and right sides of the foot pedal are respectively clamped in the two limiting grooves; the mounting position also includes a second connecting hole arranged on the vertical frame, and the second connecting hole passes through the groove wall of the limiting groove; a second threaded hole connected to the second connecting hole with a screw is arranged on the foot pedal.

[0011] Preferably, a plurality of the second threaded holes are arranged on the foot pedal along the front-to-rear direction.

[0012] Preferably, the top of the upright frame has a mounting rod; the connecting assembly includes a first backrest, and the left and right sides of the first backrest are respectively detachably connected to the two mounting rods; a mounting groove is provided on the first backrest; the enclosure is U-shaped, including two side block parts arranged relatively spaced apart and a front block part connected to the front sides of the two side block parts, the side of the side block part away from the front block part is penetrated into the mounting groove, and a plurality of clamping grooves that are clamped with the left and right sides of the mounting groove are provided on the outer side of the side block part; a guard belt is sleeved on the front block part, and a connecting port is provided on the seat panel, the bottom of the guard belt is penetrated in the connecting port, and the connecting port is close to the contact part with an inwardly concave arc shape.

[0013] Preferably, a dinner plate is installed on the upper part of the enclosure, and the left and right sides of the bottom of the dinner plate are detachably connected to the side of the enclosure through an adapter; the adapter includes a plug plate and a hand-held part in a direction away from the enclosure, a slide groove is provided on the hand-held part, and a slide groove connected to the slide groove is provided at the bottom of the dinner plate.

[0014] A slide rail that slides in the left and right directions; a slot that plugs into and fits with the plug plate is provided on the side of the enclosure.

[0015] Preferably, the connecting assembly includes a second backrest, which is made of a flexible material; a plurality of third threaded holes are arranged on the mounting rod, and a plurality of third connecting holes are arranged on the left and right sides of the second backrest, and the third connecting holes are connected to the corresponding third threaded holes by screws, and the number of the third threaded holes is greater than the number of the third connecting holes.

[0016] The utility model has the following beneficial effects: the front and rear sides of the seat panel of the utility model respectively form a contact portion, which is respectively in the shape of an inner concave arc and an outer convex arc. Among them, the contact portion in the shape of an inner concave arc is suitable for dining chairs used by young children, and can make room for the legs of young children to improve comfort. The contact portion in the shape of an outer convex arc is suitable for study chairs used by older children, and can effectively support the legs, so that children do not feel tired after sitting for a long time. When used as a dining chair, the enclosure is connected to the frame to protect young children. When used as a study chair, the enclosure is removed to provide a larger seating space. In addition, the left and right sides of the seat panel of the utility model are parallel to each other, so as to facilitate the replacement of the front and rear directions of the seat panel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the specific implementation or the prior art description. In all the drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, each element or part is not necessarily drawn according to the actual scale.

[0018] Figure 1 This is one of the structural schematic diagrams of the dual-purpose chair of the embodiment of the utility model used as a dining chair;

[0019] Figure 2 This is a second structural schematic diagram of the dual-purpose chair used as a dining chair according to an embodiment of the utility model;

[0020] Figure 3 This is a schematic diagram of the connection structure of the seat panel, the first backrest and the enclosure in an embodiment of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of a dinner plate according to an embodiment of the utility model;

[0022] Figure 5 It is a structural schematic diagram of the adapter of an embodiment of the utility model;

[0023] Figure 6 A schematic diagram of the structure of a seat panel according to an embodiment of the utility model;

[0024] Figure 7 This is one of the structural schematic diagrams of the dual-purpose chair of the embodiment of the utility model used as a study chair;

[0025] Figure 8 This is the second structural schematic diagram of the dual-purpose chair used as a study chair according to an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1-stand; 11-front support; 111-armrest; 12-rear support; 121-mounting rod; 1211-third threaded hole; 13-first threaded hole; 14-limiting groove; 15-second connecting hole; 2-support rod; 3-seat panel; 31-contact part; 32-connecting part; 321-first connecting hole; 33-connecting port; 34-storage hole; 4-foot pedal; 41-second threaded hole; 5-enclosure; 51-slot; 52-guard belt; 53-slot; 6-first backrest; 61-mounting groove; 7-dinner tray; 71-adapter; 711-plug plate; 712-handle part; 7121-slide groove; 72-slide rail; 8-second backrest; 81-third connecting hole; 9-anti-tilt foot; 91-through hole. DETAILED DESCRIPTION

[0028] Here, it should be noted that the functions and methods involved in the present invention are merely conventional adaptive applications of the prior art. Therefore, the improvement of the present invention on the prior art is essentially the connection relationship between the hardware, rather than the functions and methods themselves. That is, although the present invention involves some functions and methods, it does not include improvements to the functions and methods themselves. The description of the functions and methods in the present invention is to better illustrate the present invention so as to better understand the present invention.

[0029] The following embodiments of the technical solution of the utility model are described in detail in conjunction with the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solution of the utility model, and are therefore only used as examples, and cannot be used to limit the protection scope of the utility model.

[0030] It should be noted that, unless otherwise specified, the technical terms or scientific terms used in this application should have the common meanings understood by technicians in the field to which the utility model belongs.

[0031] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, this embodiment provides a dual-purpose chair, including a frame, the frame including two upright frames 1 arranged opposite to each other on the left and right, and a connecting assembly connecting the two upright frames 1. In this embodiment, the upright frame 1 includes a front support 11 and a rear support 12, the top of the front support 11 is bent toward the rear support 12 to form an armrest 111, the armrest 111 is fixedly connected to the upper part of the rear support 12, and the upper part of the rear support 12 protrudes from the armrest 111 to form a mounting rod 121.

[0032] The connection assembly comprises a support rod 2 fixedly connected between two rear pillars 12. In the present embodiment, the stand 1 is designed as a leg-type structure. In practice, the stand 1 can also be designed as a panel-type structure.

[0033] A seat panel 3 is connected between the two upright frames 1, and the left and right sides of the seat panel 3 are parallel to each other. The front and rear edges of the seat panel 3 respectively form a contact portion 31, one of which is an inwardly concave arc shape, and the other contact portion 31 is an outwardly convex arc shape.

[0034] The left and right sides of the seat panel 3 are detachably connected to the two uprights 1, respectively. Specifically, four installation areas are provided on the side of the upright 1 close to the seat panel 3, and the heights of the installation areas are different. Each installation area includes two first threaded holes 13. A connection portion 32 is provided downwardly extending below the left and right sides of the seat panel 3. Two first connection holes 321 are provided through the connection portion 32. The first connection holes 321 and the first threaded holes 13 are connected by screws. In this embodiment, the upright 1 is a leg-type structure, and the two first threaded holes 13 of each installation area are respectively located on the front support 11 and the rear support 12 to stably support the seat panel 3. The installation areas are designed to be multiple with different heights, and the installation height of the seat panel 3 can be adjusted as needed.

[0035] Furthermore, the above-mentioned first connecting hole 321 is a strip hole, the length direction of which is parallel to the front-to-back direction of the seat panel 3, and the screw connecting the first connecting hole 321 and the first threaded hole 13 is slidably fitted in the corresponding first connecting hole 321, without the need for precise hole alignment, and the seat panel 3 can slide freely in the front-to-back direction. When sitting down, it can slide to the most comfortable position by itself, and can adapt to the comfortable seat depth to the greatest extent.

[0036] Furthermore, the center line connecting the two first threaded holes 13 in the same installation area on the same stand 1 is an oblique line, and the oblique line gradually tilts downward from front to back, and the inclination angle can be 2°-4°, preferably 3°. After the seat panel 3 is installed, the seat panel 3 is also inclined, and its inclination angle is consistent with the inclination angle of the above-mentioned oblique line, so that the child can sit more firmly and comfortably, which is conducive to cultivating a good sitting posture.

[0037] The front and rear sides of the seat panel 3 of this embodiment respectively form a contact portion 31, which is in an inwardly concave arc shape and an outwardly convex arc shape. The inwardly concave arc-shaped contact portion 31 is suitable for dining chairs for small children, which can make room for the legs of young children and improve comfort. The outwardly convex arc-shaped contact portion 31 is suitable for dining chairs for older children.

[0038] The study chair used by children can effectively support the legs and not feel tired when sitting for a long time. The left and right sides of the seat panel 3 of this embodiment are parallel to each other, so as to facilitate changing the front and rear direction of the seat panel 3 and switching the dining chair posture and the study chair posture.

[0039] The dual-purpose chair also includes a footrest 4. A plurality of mounting positions detachably connected to the footrest 4 are provided on the frame 1. The heights of the mounting positions on the same frame 1 are different, so as to adjust the mounting height of the footrest 4. The mounting position includes a horizontal limiting groove 14 opened along the front-back direction. The left and right sides of the footrest 14 are respectively clamped in the two limiting grooves 14 to limit the position of the footrest 4 in the vertical direction; the mounting position also includes a second connecting hole 15 penetrating the frame 1, and the second connecting hole 15 penetrates the groove wall of the limiting groove 14; the footrest 4 is provided with a second threaded hole 41 screwed to the second connecting hole 15 to limit the horizontal position of the footrest 4. In this embodiment, the second connecting hole 15 is opened at the lower part of the front support 11. The above-mentioned foot pedal 4 is provided with two second threaded holes 41 along the front-to-back direction. By connecting different second threaded holes 41 with the second connecting hole 15, the length of the foot pedal 4 extending in front of the front pillar 11 can be adjusted, so that the foot pedal depth can be adjusted, and the problem of the foot hooking inward due to insufficient foot placement depth can be solved.

[0040] When used as a dining chair, it is also necessary to install a fence 5, which is detachably connected to the frame and is located above the seat panel 3. The above-mentioned connecting assembly also includes a first backrest 6, and the left and right sides of the first backrest 6 are respectively screwed to two mounting rods 121. A mounting groove 61 is provided through the first backrest 6. The above-mentioned fence 5 is U-shaped, including two side guards arranged relatively spaced apart and a front guard connected to the front sides of the two side guards. The side of the side guard away from the front guard is inserted into the mounting groove 61, and two card slots 51 that are clamped to the left and right sides of the mounting groove 61 are provided on the outer side of the side guard. The two card slots 51 are designed to adjust the front and rear distance of the fence 5, making sitting safer and more comfortable.

[0041] The middle part of the front baffle is sleeved with a protective belt 52, which is made of leather and can play a role in protecting the crotch. A connecting port 33 is provided through the seat panel 3, and the bottom of the protective belt 52 is passed through the connecting port 33, and the connecting port 33 is close to the contact portion 31 with an inward concave arc shape. The fixing method of the protective belt 52 and the connecting port 33 is the same as the fixing method of the existing protective belt, such as connecting a rectangular metal buckle at the lower part of the protective belt 52, and the protective belt is connected to the middle part of the rectangular metal buckle, and the rectangular metal buckle can only pass through the connecting port 33 in a vertical state.

[0042] When the guard belt is pulled back, the rectangular metal buckle in the middle connected to the guard belt cannot be naturally transformed into a vertical state, so it can prevent the guard belt from slipping out of the connection port 33.

[0043] Furthermore, a dining tray 7 is installed on the upper part of the enclosure 5, and the left and right sides of the bottom of the dining tray 7 are detachably connected to the side of the enclosure 5 through an adapter 71. Specifically, the adapter 71 includes a plug plate 711 and a hand-held portion 712 in the direction away from the enclosure 5, and a slide groove 7121 is provided on the hand-held portion 712. A slide rail 72 that slides with the slide groove 7121 in the left and right directions is provided at the bottom of the dining tray 7; a slot 53 that plugs with the plug plate 711 is provided on the side of the enclosure 5, and the slot 53 is a non-through design. When in use, the adapter 71 can be slid inward to insert the plug plate 711 into the slot 53, so that the position of the dining tray 7 is fixed. When the dining tray 7 needs to be removed for cleaning, the adapter 71 can be pulled outward to slide the plug plate 711 out of the slot 53, so that the dining tray 7 can be lifted up, and the disassembly and assembly of the dining tray 7 is more labor-saving.

[0044] When used as a study chair, the connection assembly further includes a second backrest 8 to replace the first backrest 6, and the second backrest 8 is made of a flexible material, such as leather. The mounting rod 121 is provided with four third threaded holes 1211, and the left and right sides of the second backrest 8 are provided with two rows of holes, each row of holes includes two third connection holes 81, and the third connection holes 81 are connected to the corresponding third threaded holes 1211 by screws, and the outer periphery of the screw head of the screw is provided with friction convex patterns to facilitate the twisting of the screw.

[0045] In this embodiment, the four third threaded holes 1211 on the mounting rod 121 are grouped in pairs for connection with the second backrest 8. When connecting, first screw two screws into a group of third threaded holes 1211 respectively, and then put the corresponding row of third connection holes 81 on the second backrest 8 on the outer periphery of the screws, similar to the connection method of buttons and buttonholes. Two rows of holes are set on the left and right sides of the second backrest 8, and the tightness of the second backrest 8 can be adjusted for personalized adjustment.

[0046] It should be noted that the first backrest 6 is screwed to the two third threaded holes 1211 located at the top and the bottom.

[0047] When the dining chair is switched to a study chair, the enclosure 5, the dining tray 7 and the first backrest 6 are removed, the seat panel 3 is removed and installed in a forward and backward direction, and then the second backrest 8 is installed.

[0048] In addition, a receiving hole 34 is provided at the bottom of the seat panel 3 , and the receiving hole 34 is used to receive a wrench, so as to facilitate access to tools for disassembling and installing screws.

[0049] Furthermore, in order to prevent tipping, in this embodiment, anti-tip feet 9 are connected to the bottom of the front pillar 11 and the rear pillar 12. The bottom surface of the anti-tip foot 9 is a plane, and a mounting hole is set at one end of the top. A through hole 91 that passes through both sides of the mounting hole is opened on the side of the anti-tip foot 9, and a matching hole is set near the bottom of the front pillar 11 and the rear pillar 12. The through hole 91 is connected to the matching hole by a screw. After connection, the front pillar 11 and the rear pillar 12 are in contact with the hole wall of the mounting hole of the corresponding anti-tip foot 9, and the length direction of the anti-tip foot 9 is set along the front and rear direction of the frame. The mounting holes of the two anti-tip feet 9 of the same stand 1 are close to each other, which plays an anti-tip role.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the utility model, and they should all be included in the scope of the claims and specification of the utility model.

Claims

1. A dual-purpose chair, characterized in that: include: A frame, comprising two upright frames arranged opposite to each other on the left and right and a connecting assembly connecting the two upright frames; A seat panel, the left and right sides of which are detachably connected to the two upright frames, the left and right sides of the seat panel are parallel to each other, and the front and rear edges of the seat panel form a contact portion, one of which is in an inwardly concave arc shape, and the other is in an outwardly convex arc shape; The enclosure is detachably connected to the frame and is located above the seat panel.

2. A dual-purpose chair according to claim 1, characterized in that: A plurality of mounting areas are arranged on one side of the stand close to the seat panel, each of the mounting areas has a different height, and each of the mounting areas includes at least two first threaded holes; A connecting portion is provided downwardly extending below the left and right sides of the seat panel. The connecting portion is provided with at least two first connecting holes, and the first connecting holes and the first threaded holes are connected by screws.

3. A dual-purpose chair according to claim 2, characterized in that: The first connecting hole is a strip-shaped hole, the length direction of which is parallel to the front-rear direction of the seat panel, and the screw is slidably fitted in the corresponding first connecting hole.

4. A dual-purpose chair according to claim 2, characterized in that: The center connecting line of the plurality of first threaded holes in the same installation area is an oblique line, the oblique line gradually inclines downward from front to back, and the angle between the oblique line and the horizontal plane is 2°-4°.

5. The dual-purpose chair according to claim 1, characterized in that: It also includes a foot pedal. The vertical frame is provided with a plurality of mounting positions detachably connected to the foot pedal, and the heights of the mounting positions on the same vertical frame are different.

6. A dual-purpose chair according to claim 5, characterized in that: The installation position includes a limiting groove opened along the front-back direction, and the left and right sides of the foot pedal are respectively clamped in the two limiting grooves; The installation position further includes a second connection hole which is arranged on the stand and passes through the groove wall of the limiting groove; The foot pedal is provided with a second threaded hole which is screw-connected to the second connecting hole.

7. A dual-purpose chair according to claim 6, characterized in that: A plurality of the second threaded holes are arranged on the foot pedal along the front-to-back direction.

8. The dual-purpose chair according to claim 1, characterized in that: The top of the stand is provided with a mounting rod; The connecting assembly comprises a first backrest, the left and right sides of which are detachably connected to the two mounting rods respectively; The first backrest is provided with a mounting groove; The enclosure is U-shaped, and includes two side blocking portions arranged relatively at intervals and a front blocking portion connected to the front sides of the two side blocking portions, a side of the side blocking portion away from the front blocking portion is inserted into the installation groove, and a plurality of clamping grooves are provided on the outer side of the side blocking portion to be clamped with the left and right sides of the installation groove; A guard belt is sleeved on the front stop portion, a connecting port is provided through the seat panel, the bottom of the guard belt is passed through the connecting port, and the connecting port is close to the contact portion in a concave arc shape.

9. The dual-purpose chair according to claim 1, characterized in that: A dining tray is installed on the upper part of the enclosure, and the left and right sides of the bottom of the dining tray are detachably connected to the side of the enclosure through an adapter; The adapter includes a plug plate and a hand-held part in a direction away from the enclosure, the hand-held part is provided with a slide groove, and a slide rail is provided at the bottom of the dinner plate to slide with the slide groove in the left and right direction; The side of the enclosure is provided with a slot which is plugged and matched with the plug plate.

10. The dual-purpose chair according to claim 8, characterized in that: The connecting assembly includes a second backrest, and the second backrest is made of a flexible material; The mounting rod is provided with a plurality of third threaded holes, and the left and right sides of the second backrest are provided with a plurality of third connecting holes, the third connecting holes are connected to the corresponding third threaded holes by screws, and the number of the third threaded holes is greater than the number of the third connecting holes.

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