Chair convenient to transport and install
By designing a detachable chair structure and using one-piece plastic molding, the high transportation and molding costs of existing chairs are solved, enabling rapid assembly and diverse appearances, reducing transportation and molding costs, and making the chairs environmentally friendly and recyclable.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-27
AI Technical Summary
Existing chairs are bulky and have high transportation costs due to their integrated structure. They also have high difficulty and cost in mold making technology, and ordinary plastic chairs have a monotonous appearance.
The chair is designed with a detachable structure, including a detachable frame, seat, and backrest. It is made of one piece of plastic and uses flexible limiting components and detachable connections to achieve quick assembly and disassembly.
It reduces transportation and mold-making costs, decreases packaging volume, enables rapid assembly, and offers diverse chair appearances, while being environmentally friendly and recyclable.
Smart Images
Figure CN224038788U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to chair technical field, concretely relates to a chair of convenient transportation installation. BACKGROUND
[0002] The chair is mainly composed of a backrest, a seat and a chair frame. Since the raw material price and the preparation cost of metal are relatively high, in order to save cost, the components of many chairs on the market will be made of plastic. The backrest and the seat of the ordinary backrest chair on the market are usually integrally injection molded, and then are fixed on the chair frame through bolts. Since the structure is integrated, the overall volume is relatively large, a relatively large mold needs to be used during production, and the mold opening technology difficulty and cost are relatively high. In addition, a relatively large packaging box is also needed for transportation, so that a single chair occupies a large transportation space, thereby leading to high transportation cost. SUMMARY
[0003] The utility model discloses a chair which can be disassembled according to needs, can reduce the mold opening technology difficulty, reduce the mold opening cost and the packaging volume, reduce the transportation cost and save the freight.
[0004] The utility model discloses the technical scheme that adopts: a chair convenient to transport and install, including the chair frame and the seat and the backrest of the detachable setting on the chair frame, wherein,
[0005] The chair frame includes the front frame and the rear frame that are integrally formed, the front frame includes two front support frames and a front cross rod connecting the two front support frames, the rear frame includes two rear support frames and a rear cross rod connecting the two rear support frames, and the front cross rod and the rear cross rod are detachably connected.
[0006] The seat is hinged to the rear cross rod through an elastic limiting component.
[0007] The backrest is elastically limited hinged to the two rear support frames.
[0008] Preferably, the front frame and the rear frame are both H-shaped shelves, and the front frame and the rear frame are both integrally formed of plastic.
[0009] Preferably, the rear cross rod protrudes outward on the other side relative to the front cross rod and has a hinge handle for hinging with the seat, and the elastic limiting component elastically abuts against the hinge handle.
[0010] Preferably, the elastic limiting component includes an elastic block movably installed inside the seat, one end of the elastic block elastically abuts against the hinge handle, and the other end of the elastic block is connected with a spring installed inside the seat.
[0011] Preferably, the free end of the articulated handle is a guide rail surface for the elastic block to elastically abut against, and the guide rail surface is provided with a clamping groove.
[0012] Preferably, the end of the elastic block that is movably connected with the articulated handle is a triangular arc part.
[0013] Preferably, the seat bottom is provided with an articulated cavity that is articulated with the articulated handle, and a movable cavity for mounting the elastic limiting assembly is arranged on the side of the articulated cavity, and the movable cavity is provided with an opening through which the elastic block is arranged to elastically abut against the articulated handle.
[0014] Preferably, the elastic block is provided with a spring groove for clamping a spring, the spring groove is provided with a first limiting block for clamping one end of the spring, and the movable cavity is provided with a second limiting block for clamping the other end of the spring.
[0015] Preferably, the rear support frame protrudes a limiting shaft for the backrest to articulate at the connection with the backrest, the backrest is provided with an articulated plate that is articulated with the limiting shaft, and the articulated plate is provided with a torsional spring cavity for mounting a torsional spring on the side.
[0016] Preferably, the limiting shaft is provided with a limiting protrusion, the articulated plate is provided with an articulated hole for the limiting shaft to be inserted into, and the side of the articulated hole is provided with a limiting arc slot for the limiting protrusion to move in.
[0017] Preferably, the top of the rear support frame protrudes a connecting protrusion towards the front support frame, and the top of the front support frame is provided with a connecting inner hole for the connecting protrusion to be inserted into.
[0018] Preferably, the front cross rod is provided with a support handle for supporting the seat on the side away from the rear frame.
[0019] Preferably, the front cross rod and the rear cross rod are detachably connected through screws.
[0020] Preferably, the front cross rod is provided with a plurality of mounting column holes on the side towards the rear cross rod, the rear cross rod is provided with a plurality of mounting concave holes for the mounting column holes to be inserted into on the side towards the front cross rod, and the screws are inserted through the mounting concave holes and abut against the mounting column holes.
[0021] Compared with the prior art, the utility model has the following advantages:
[0022] 1. Convenient transportation: the chair can be disassembled, and the chair frame can be divided into a front frame and a rear frame. This design can not only greatly reduce the transportation volume and transportation cost, but also save the freight and reduce the difficulty of mold opening technology, thereby reducing the mold opening cost and packaging volume.
[0023] 2. Quick assembly: when transporting, only the front frame can be disassembled, and then the seat is rotated to the vertical state in the direction of the backrest. When installing, only the front frame and the rear frame need to be connected to quickly complete the assembly. This design can transport the chair in two parts, which not only greatly reduces the transportation cost, but also realizes quick assembly.
[0024] 3. Environmental protection: the entire chair is made of plastic and can be recycled.
[0025] 4. Various colors and color matching: the front frame and the rear frame of the chair frame are also integrally formed by plastic injection molding, and two colors can be matched during injection molding, so that the appearance after molding is two colors, which can make the entire chair frame obtain a more colorful appearance without additional spraying process. BRIEF DESCRIPTION OF DRAWINGS
[0026] Figure 1 is a structural schematic diagram of the utility model.
[0027] Figure 2 is a structural schematic diagram of the elastic limiting assembly installed on the seat.
[0028] Figure 3 is a schematic diagram of the internal structure of the seat in the horizontal state.
[0029] Figure 4 is Figure 3 the enlarged schematic diagram of A of
[0030] Figure 5 is a state diagram when the utility model is transported in two parts.
[0031] Figure 6 is a schematic diagram of the internal structure of the seat in the storage state.
[0032] Figure 7 is an exploded view of the elastic limiting assembly.
[0033] Figure 8 is a structural schematic diagram of the rear frame.
[0034] Figure 9 is a structural schematic diagram of the front frame.
[0035] Figure 10 is a schematic diagram of the internal installation of the backrest and the chair frame.
[0036] Figure 11 is a schematic diagram of the position of the hinge plate on the backrest.
[0037] The numbers shown in the figure are:
[0038] 1-chair frame, 11-front frame, 111-front support frame, 112-front crossbar, 113-connection inner hole, 114-mounting column hole, 115-support handle, 12-rear frame, 121-rear support frame, 122-rear crossbar, 123-connection convex part, 124-mounting concave hole, 125-hinge handle, 1251-guide rail surface, 1252-clamping groove, 126-limiting shaft, 1261-limiting protrusion, 2-seat, 21-hinge cavity, 22-movable cavity, 221-opening, 222-second limiting block, 3-backrest, 31-hinge plate, 311-hinge hole, 312-limiting arc groove, 32-torsional spring, 33-torsional spring cavity, 34-peg, 4-elastic limiting assembly, 41-elastic block, 411-triangle arc part, 412-spring groove, 413-first limiting block, 42-spring, 5-screw, 6-castor. DETAILED DESCRIPTION
[0039] To deepen the understanding of the utility model, the utility model will be further described in the following by combining with the embodiment and the drawings. The utility model can be implemented by the following ways:
[0040] Reference Figures 1-11 A chair convenient for transportation and installation, comprising a chair frame 1 and a seat 2 and a backrest 3 detachably arranged on the chair frame 1.
[0041] The chair frame 1 comprises a front frame 11 and a rear frame 12 which are integrally formed, the front frame 11 comprises two front support frames 111 and a front cross rod 112 connecting the two front support frames 111, the rear frame 12 comprises two rear support frames 121 and a rear cross rod 122 connecting the two rear support frames 121, and the front cross rod 112 and the rear cross rod 122 are detachably connected. Specifically, the front cross rod 112 and the rear cross rod 122 are detachably connected by screws 5. The top of the rear support frame 121 protrudes a connecting protrusion 123 towards the front support frame 111, and the top of the front support frame 111 is provided with a connecting inner hole 113 into which the connecting protrusion 123 is inserted. The front cross rod 112 is provided with a plurality of mounting column holes 114 on the side facing the rear cross rod 122, and the rear cross rod 122 is provided with a plurality of mounting recessed holes 124 into which the mounting column holes 114 are inserted on the side facing the front cross rod 112. When assembling the chair frame 1, the mounting column holes 114 of the front frame 11 are aligned with the mounting recessed holes 124 and inserted, then the screws 5 are passed through the mounting recessed holes 124 and abut into the mounting column holes 114, at this time, the connecting protrusion 123 is inserted into the connecting inner hole 113, and the operation is simple and fast. The chair in the embodiment can be transported in four parts of the backrest 3, the seat 2, the front frame 11 and the rear frame 12. Not only can the transportation volume be greatly reduced, the transportation cost be reduced, the freight be saved, but also the mold opening technical difficulty be reduced, the mold opening cost and the packaging volume be reduced. The chair in the embodiment can also be transported only by disassembling the front frame 11, and the remaining backrest 3, seat 2 and rear frame 12 are another part (such as Figure 5 The chair in the embodiment can be transported in four parts of the backrest 3, the seat 2, the front frame 11 and the rear frame 12. Not only can the transportation volume be greatly reduced, the transportation cost be reduced, the freight be saved, but also the mold opening technical difficulty be reduced, the mold opening cost and the packaging volume be reduced. The chair in the embodiment can also be transported only by disassembling the front frame 11, and the remaining backrest 3, seat 2 and rear frame 12 are another part (such as
[0042] The entire chair in the embodiment is made of plastic and can be recycled. In addition, the front frame 11 and the rear frame 12 are both “H”-shaped shelves, and the front frame 11 and the rear frame 12 are both plastic integrally formed structures. Not only can the entire chair frame 1 be recycled and be more environmentally friendly, but also the front frame 11 and the rear frame 12 can be designed as two-color injection molded parts, so that they have two colors in appearance after molding, the colors can be arbitrarily matched, and the entire chair frame 1 can obtain a more colorful appearance without additional spraying process. In addition, the seat 2 and the backrest 3 are both provided with detachable outer covers, and different colored outer covers can be replaced according to the color of the chair frame 1.
[0043] In order to enable the seat 2 to rotate along the rear cross rod 122, refer to Figures 2-4, 6-7, the seat 2 is hinged on the rear crossbar 122 by the elastic limiting assembly 4. Specifically, the rear crossbar 122 protrudes outward on the other side relative to the front crossbar 112 with a hinge handle 125 for hinging with the seat 2, and the seat 2 can rotate with the hinge handle 125 as the axis. The elastic limiting assembly 4 elastically abuts against the hinge handle 125. The elastic limiting assembly 4 comprises an elastic block 41 movably mounted inside the seat 2, one end of the elastic block 41 elastically abuts against the hinge handle 125, and the other end is connected with a spring 42 mounted inside the seat 2. The spring 42 is in a compressed state. The free end of the hinge handle 125 is a guide rail surface 1251 for the elastic block 41 to elastically abut against, and the guide rail surface 1251 is provided with a clamping groove 1252. The end of the elastic block 41 movably connected with the hinge handle 125 is a triangular arc portion 411, which can make the elastic block 41 smoothly enter the clamping groove 1252, and when stressed, it is separated from the clamping groove 1252. When the seat 2 rotates, the seat 2 drives the elastic block 41 of the elastic limiting assembly 4 to slide along the guide rail surface 1251 of the hinge handle 125. When the seat 2 rotates to the vertical state (as shown in Figure 6 ), the elastic block 41 is pushed down by the spring 42, and the triangular arc portion 411 thereof just slides into the clamping groove 1252, so that the seat 2 can stay in the folded state, avoiding scratches caused by shaking during transportation.
[0044] In order to install the elastic limiting assembly 4, the bottom of the seat 2 is provided with a hinge cavity 21 hinged with the hinge handle 125, and the side of the hinge cavity 21 is provided with a movable cavity 22 for installing the elastic limiting assembly 4, and the movable cavity 22 is provided with an opening 221 for the elastic block 41 to pass out and elastically abut against the hinge handle 125. The elastic block 41 protrudes outside the seat 2 to elastically abut against the hinge handle 125 through the opening 221. The elastic block 41 is provided with a spring groove 412 for clamping the spring 42, and the spring groove 412 is provided with a first limiting block 413 for clamping one end of the spring 42, and the movable cavity 22 is provided with a second limiting block 222 for clamping the other end of the spring 42. The first limiting block 413 and the second limiting block 222 can make the spring 42 in a compressed state, so that the spring 42 can only stretch and contract between the first limiting block 413 and the second limiting block 222. The distance between the first limiting block 413 and the second limiting block 222 is the compression distance of the spring 42.
[0045] In order to make the seat 2 have sufficient bearing capacity when rotated to the horizontal state, with reference to Figure 9 , the front crossbar 112 is provided on the side away from the rear frame 12 with a support handle 115 for supporting the seat 2. When the seat 2 is rotated to the horizontal state (as shown in Figure 3 ), the bottom of the seat 2 just abuts against the support handle 115, ensuring the bearing capacity of the seat 2.
[0046] Referring to Figures 10-11 The backrest 3 is elastically limited hinged with the two rear support frames 121. The rear support frame 121 is provided with a limiting shaft 126 for hinging the backrest 3 at the connection with the backrest 3. The backrest 3 is provided with a hinge plate 31 hinged with the limiting shaft 126. The hinge plate 31 is provided with a torsion spring cavity 33 for installing a torsion spring 32 on the side. The torsion spring 32 is sleeved in the torsion spring cavity 33 and can rotate around the limiting shaft 126. The torsion spring cavity 33 is provided with a bolt 34 for limiting the foot of the torsion spring 32. In order to limit the rotation angle of the backrest 3, the limiting shaft 126 is provided with a limiting protrusion 1261. The hinge plate 31 is provided with a hinge hole 311 for inserting the limiting shaft 126. The hinge hole 311 is provided with a limiting arc groove 312 for the movement of the limiting protrusion 1261 on the side. The corresponding central angle of the limiting arc groove 312 is the rotation range of the backrest 3. This design makes the backrest 3 have a certain backward tilting function, thereby improving the user experience.
[0047] In order to facilitate the movement of the chair, the bottom of the front frame 11 and the rear frame 12 is provided with a universal wheel 6, which is convenient for moving the chair when in use.
[0048] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for limiting the present application, any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application, should be included in the protection scope of the present application.
Claims
1. A chair for convenient transport installation, characterized in that, The chair frame (1) comprises a front frame (11) and a rear frame (12) which are integrally formed, the front frame (11) comprises two front support frames (111) and a front cross rod (112) connecting the two front support frames (111), the rear frame (12) comprises two rear support frames (121) and a rear cross rod (122) connecting the two rear support frames (121), and the front cross rod (112) and the rear cross rod (122) are detachably connected. The seat (2) is hingedly connected to the rear cross rod (122) through an elastic limiting assembly (4). The backrest (3) is elastically and limitingly hingedly connected to the two rear support frames (121). The front frame (11) and the rear frame (12) are integrally formed of plastic.
2. A chair for convenient transport and installation according to claim 1, characterized in that The rear cross rod (122) protrudes outward on the other side relative to the front cross rod (112) and has a hinging handle (125) for hingedly connecting the seat (2), and the elastic limiting assembly (4) elastically abuts against the hinging handle (125).
3. A chair for easy transport and installation according to claim 1 or 2, characterized in that The elastic limiting assembly (4) comprises an elastic block (41) movably mounted in the seat (2), one end of the elastic block (41) elastically abuts against the hinging handle (125), and the other end of the elastic block (41) is connected to a spring (42) mounted in the seat (2).
4. A chair for convenient transport and installation according to claim 3, characterized in that A free end of the hinging handle (125) is a guide rail surface (1251) for elastically abutting against the elastic block (41), and the guide rail surface (1251) is provided with a clamping groove (1252).
5. A chair for convenient transport and installation according to claim 4, characterized in that The seat (2) is provided with a hinging cavity (21) for hingedly connecting the hinging handle (125), and a movable cavity (22) for mounting the elastic limiting assembly (4) is arranged on one side of the hinging cavity (21), and the movable cavity (22) is provided with an opening (221) through which the elastic block (41) passes to elastically abut against the hinging handle (125).
6. A chair for convenient transport and installation according to claim 5, characterized in that The elastic block (41) is provided with a spring groove (412) for clamping the spring (42), the spring groove (412) is provided with a first limiting block (413) for clamping one end of the spring (42), and the movable cavity (22) is provided with a second limiting block (222) for clamping the other end of the spring (42).
7. A chair for convenient transport and installation according to claim 6, characterized in that The rear support frame (121) protrudes a limiting shaft (126) for hingedly connecting the backrest (3) at a position where the backrest (3) is connected, the backrest (3) is provided with a hinging plate (31) hingedly connected to the limiting shaft (126), and a torsional spring cavity (33) for mounting a torsional spring (32) is arranged on one side of the hinging plate (31); the limiting shaft (126) is provided with a limiting protrusion (1261), the hinging plate (31) is provided with a hinging hole (311) into which the limiting shaft (126) is inserted, and a limiting arc groove (312) is arranged on one side of the hinging hole (311) for movement of the limiting protrusion (1261).
8. A chair for convenient transportation installation according to claim 1 or 2 or 4 or 5 or 6 or 7, characterized in that, 9. A chair for convenient transportation installation according to claim 1 or 2 or 4 or 5 or 6 or 7, characterized in that, The top of the rear support frame (121) protrudes a connecting protrusion (123) towards the front support frame (111), and the top of the front support frame (111) is provided with a connecting inner hole (113) for the connecting protrusion (123) to insert.
10. A chair for convenient transportation installation according to claim 1 or 2 or 4 or 5 or 6 or 7, characterized in that, The front cross rod (112) and the rear cross rod (122) are detachably connected by a screw (5), the front cross rod (112) is provided with a plurality of mounting column holes (114) on the side facing the rear cross rod (122), the rear cross rod (122) is provided with a plurality of mounting concave holes (124) for the mounting column holes (114) to insert on the side facing the front cross rod (112), and the screw (5) passes through the mounting concave hole (124) and abuts into the mounting column hole (114).