Seat functional frame

Abstract

The seat functional frame comprises a first swing frame, a second swing frame, a third swing frame and a main frame body, connecting rods extending upwards are arranged on the rear sides of the left end and the right end of the main frame body respectively, the left end and the right end of the first swing frame are hinged to the two connecting rods respectively, the left end and the right end of the second swing frame are hinged to the bottom of the front end of the main frame body respectively, and the left end and the right end of the third swing frame are hinged to the bottom of the rear end of the main frame body respectively. And the third swinging frame can be stored in the second swinging frame in a swinging manner. The utility model provides the seat functional frame according to the content, and solves the problem that after a seat frame in the prior art is sleeved with a seat sleeve, the seat sleeve of a backrest and the seat sleeve of a cushion are likely to be mutually extruded and rubbed to be abraded and cracked.

Description

Technical Field

[0001] The utility model relates to the technical field of folding seats, in particular to a seat function frame. Background Art

[0002] A folding seat is a uniquely designed seat that can be easily folded and unfolded. Its main features are lightness, portability, and it can be folded into a smaller volume when not in use, making it easy to store and transport.

[0003] In the prior art, in order to improve the comfort of the seat, a thick seat cover is usually wrapped on the seat frame. However, when the seat frame wrapped with the seat cover is folded and stored, the seat cover of the backrest may be squeezed and rubbed against the seat cover of the seat cushion, causing wear and cracking, thereby affecting the service life of the seat. Utility Model Content

[0004] The utility model aims to provide a functional seat frame, which solves the problem in the prior art that after the seat cover is put on the seat frame, the seat cover of the backrest may be squeezed and rubbed with the seat cover of the seat cushion to cause wear and cracking.

[0005] To achieve this purpose, the utility model adopts the following technical solutions:

[0006] A seat functional frame comprises a first swing frame, a second swing frame, a third swing frame and a main frame body;

[0007] The rear sides of the left and right ends of the main frame are respectively provided with upwardly extending connecting rods, the left and right ends of the first swing frame are respectively hinged to the two connecting rods, the left and right ends of the second swing frame are respectively hinged to the bottom of the front end of the main frame, the left and right ends of the third swing frame are respectively hinged to the bottom of the rear end of the main frame, and the third swing frame can be swung and stored inside the second swing frame.

[0008] Furthermore, the connecting rod is arranged at an angle.

[0009] Specifically, it also includes a fixed part, a rotating part and a mounting shaft;

[0010] The fixed member and the rotating member are respectively mounted on the mounting shaft, the fixed member is connected to the connecting rod, the fixed member is provided with a travel groove, the rotating member is connected to the first swing frame, the rotating member is provided with a convex block, the convex block is located in the travel groove, and the convex block can move along the length direction of the travel groove;

[0011] Blocking sheets are respectively arranged on the left and right sides of the installation shaft, and the blocking sheets are used to prevent the fixing member or the rotating member from escaping from the installation shaft.

[0012] Preferably, it further includes a first connecting frame, one end of which is connected to the inner side of one end of the first swing frame, the other end of which is connected to the inner side of the other end of the first swing frame, and a first protrusion is provided in the middle of the first connecting frame.

[0013] In some embodiments, the main frame includes an outer frame, a support frame and a second connecting frame;

[0014] The connecting rods are provided at the rear sides of the left and right ends of the outer frame, and the left and right ends of the second connecting frame are respectively connected to the connection between the outer frame and the two connecting rods;

[0015] The support frame is located inside the outer frame, and the support frame is an H-shaped structure. One end of the support frame is connected to the inner side of the front end of the outer frame, and the other end of the support frame is connected to the second connecting frame.

[0016] Further, the support frame includes a first support bar and a second support bar;

[0017] One end of the first support bar is connected to the inner side of the front end of the outer frame, the other end of the first support bar is connected to the second connecting frame, and the left and right ends of the second support bar are respectively connected to the inner sides of the two first support bars;

[0018] The second connecting frame is provided with a second protrusion, and the second protrusion is connected to the second supporting bar.

[0019] Specifically, it also includes a first hinge seat, a second hinge seat, a first hinge member and a second hinge member;

[0020] The first hinge seat is installed at the bottom of the end of the second support bar, the first hinge is installed on the third swing frame, and the first hinge is hinged to the first hinge seat;

[0021] The second hinge seat is installed at the bottom of the end of the first support bar, the second hinge seat is located on the outside of the first hinge seat, the second hinge member is installed on the second swing frame, and the second hinge member is hinged to the second hinge seat.

[0022] Preferably, the first hinge seat and the second hinge seat are respectively provided with a reinforcement plate.

[0023] Compared with the prior art, one of the above technical solutions has the following beneficial effects:

[0024] By means of the connecting rod, after the seat functional frame is folded, there is enough space between the first swing frame and the main frame, so that the seat cover of the first swing frame and the seat cover of the main frame will not be squeezed and rubbed against each other and worn and cracked, which is beneficial to improving the service life of the seat cover, and the third swing frame can be swung and stored inside the second swing frame, which can not only reduce the occupied space of the seat functional frame after folding and improve space utilization, but also avoid the third swing frame and the second swing frame from colliding and being damaged, thereby achieving the effect of improving the service life of the seat functional frame. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 This is a structural schematic diagram of a seat function frame of one embodiment of the utility model;

[0026] Figure 2 This is a schematic structural diagram of the main frame of one embodiment of the utility model;

[0027] Figure 3 This is a schematic diagram of the structure of the travel groove and the protrusion of one embodiment of the utility model;

[0028] Figure 4 This is a schematic structural diagram of a first hinge and a second hinge in one embodiment of the present utility model;

[0029] Figure 5 This is a schematic structural diagram of a reinforcement plate of one embodiment of the utility model;

[0030] Among them: the first swing frame 1, the second swing frame 2, the third swing frame 3, the main frame body 4, the outer frame 41, the support frame 42, the first support bar 421, the second support bar 422, the second connecting frame 43, the second protrusion 431, the connecting rod 5, the fixing part 61, the travel groove 611, the rotating part 62, the protrusion 621, the installation shaft 63, the blocking piece 631, the first connecting frame 7, the first protrusion 71, the first hinge seat 81, the second hinge seat 82, the first hinge 83, the second hinge 84, and the reinforcing plate 85. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present utility model, it is necessary to understand that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "left", "right", "front", "back", "vertical", "horizontal", "top", "bottom", "inside", "outside", "inner side", "outer side", "inner end", "outer end", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features, which are used to distinguish and describe the features, without distinction of order or importance. In the description of the present utility model, unless otherwise specified, "multiple" means more than two.

[0033] In one embodiment of the present invention, Figure 1-5As shown, a seat functional frame includes a first swing frame 1, a second swing frame 2, a third swing frame 3 and a main frame body 4; the rear sides of the left and right ends of the main frame body 4 are respectively provided with upwardly extending connecting rods 5, the left and right ends of the first swing frame 1 are respectively hinged to the two connecting rods 5, the left and right ends of the second swing frame 2 are respectively hinged to the bottom of the front end of the main frame body 4, the left and right ends of the third swing frame 3 are respectively hinged to the bottom of the rear end of the main frame body 4, and the third swing frame 3 can be swung and stored in the interior of the second swing frame 2.In this embodiment, the connecting rod 5 and the main frame body 4 are an integrated structure. During installation, the left and right ends of the first swing frame 1 are respectively hinged to the two connecting rods 5 at the rear end of the main frame body 4, so that the first swing frame 1 can swing along the hinge at the rear end of the main frame body 4, and the left and right ends of the second swing frame 2 are respectively hinged to the bottom of the front end of the main frame body 4, so that the second swing frame 2 can swing along the hinge at the bottom of the front end of the main frame body 4, and the left and right ends of the third swing frame 3 are respectively hinged to the bottom of the rear end of the main frame body 4, so that the third swing frame 3 can swing along the hinge at the bottom of the rear end of the main frame body 4, and the seat function frame is finally made into a seat When in use, the seat cover also needs to be installed on the seat function frame, specifically, the seat cover set is wrapped around the first swing frame 1 and the main frame body 4. The seat cover of the first swing frame 1 and the seat cover of the main frame body 4 can be an integrated structure or a split structure. When the seat is stored and folded, the first swing frame 1 is swung along the hinge of the connecting rod 5 at the rear end of the main frame body 4, so that the first swing frame 1 is swung to be parallel to the main frame body 4. Under the action of the connecting rod 5, there is enough space between the first swing frame 1 and the main frame body 4, so that the seat cover of the first swing frame 1 and the seat cover of the main frame body 4 will not squeeze or rub against each other, and then the third swing frame 3 is swung along the main frame The hinge at the bottom of the rear end of the main frame 4 is swung to make the third swing frame 3 swing to fit the bottom of the main frame 4, and finally the second swing frame 2 is swung along the hinge at the bottom of the front end of the main frame 3 to make the second swing frame 2 swing to fit the bottom of the main frame 4. At this time, the third swing frame 3 is located inside the second swing frame 2. When the seat is unfolded for use, the second swing frame 2 is swung open first, and then the third swing frame 3 is swung open. The second swing frame 2 and the third swing frame 3 serve as the footrest of the seat, and the two are in an eight-shaped structure to make the seat stable. Finally, the first swing frame 1 is swung open, and the first swing frame 2 is opened. The frame 1 serves as the backrest of the seat, and the main frame body 4 serves as the seat cushion; in the present application, through the connecting rod 5, after the seat functional frame is folded, there is enough space between the first swing frame 1 and the main frame body 4, so that the seat cover of the first swing frame 1 and the seat cover of the main frame body 4 will not be squeezed and rubbed against each other and worn and cracked, which is beneficial to improving the service life of the seat cover, and the third swing frame 3 can be swung and stored in the interior of the second swing frame 2, which can not only reduce the occupied space of the seat functional frame after folding and improve space utilization, but also avoid the third swing frame 3 and the second swing frame 2 from colliding and being damaged, thereby achieving the effect of improving the service life of the seat functional frame.

[0034] like Figure 1-2As shown, the connecting rod 5 is tilted. In this embodiment, the connecting rod 5 is tilted so that after the first swing frame 1 swings and unfolds, the first swing frame 1 and the main frame body 4 are tilted. This design is ergonomic and improves the user's comfort.

[0035] like Figure 1-3 As shown, it also includes a fixed member 61, a rotating member 62 and a mounting shaft 63; the fixed member 61 and the rotating member 62 are respectively installed on the mounting shaft 63, the fixed member 61 is connected to the connecting rod 6, the fixed member 61 is provided with a travel groove 611, the rotating member 62 is connected to the first swing frame 1, the rotating member 62 is provided with a protrusion 621, the protrusion 621 is located in the travel groove 611, and the protrusion 621 can move along the length direction of the travel groove 611; the left and right sides of the mounting shaft 63 are respectively provided with blocking sheets 631, and the blocking sheets 631 are used to prevent the fixed member 61 or the rotating member 62 from escaping from the mounting shaft 63. In this embodiment, the number of the fixed member 61, the rotating member 62 and the installation shaft 63 is two respectively. The fixed member 61 is connected to the end of the connecting rod 6 by welding. The rotating member 62 is welded to the left and right ends of the first swing frame 1. During assembly, the protrusion 621 of the rotating member 62 is placed in the travel groove 611 of the fixed member 61, and the inner side of the rotating member 62 is made to fit the inner side of the fixed member 61. Then, the installation shaft 63 passes through the middle of the fixed member 61 and the middle of the rotating member 62, so as to connect the fixed member 61 and the rotating member 62. Finally, The two ends of the installation shaft 63 are flanged with the blocking piece 631 by using a flanging device, so as to prevent the fixed part 61 or the rotating part 62 from escaping from the installation shaft 63. When the first swing frame 1 swings, specifically, the first swing frame 1 drives the protrusion 621 of the rotating part 62 to move in the stroke groove 611 of the fixed part 61. The head end position of the protrusion 621 in the stroke groove 611 is the unfolding position of the first swing frame 1, and the end position of the protrusion 621 in the stroke groove 611 is the folding and storage position of the first swing frame 1. Through the above-mentioned rotation limiting structure, the first swing frame 1 can be opened and closed stably and smoothly.

[0036] like Figure 1-2As shown, the first connecting frame 7 is also included, one end of the first connecting frame 7 is connected to the inner side of one end of the first swing frame 1, the other end of the first connecting frame 7 is connected to the inner side of the other end of the first swing frame 1, and a first protrusion 71 is provided in the middle of the first connecting frame 7. In this embodiment, the first swing frame 1 is a U-shaped structure, and the two ends of the first connecting frame 7 are respectively connected to the inner sides of the two ends of the first swing frame 1, so as to improve the structural stability of the first swing frame 1 and make it less prone to bending and deformation, and a first protrusion 71 is provided in the middle of the first connecting frame 7. If the two sides of the first swing frame 1 are impacted by a collision, the first protrusion 71 can play a buffering role, alleviate the deformation tendency of the first swing frame 1, and reduce the deformation amount.

[0037] like Figure 1-2 As shown, the main frame 4 includes an outer frame 41, a support frame 42 and a second connecting frame 43; the connecting rods 5 are provided at the rear sides of the left and right ends of the outer frame 41, and the left and right ends of the second connecting frame 43 are respectively connected to the connection between the outer frame 41 and the two connecting rods 5; the support frame 42 is located inside the outer frame 1, and the support frame 42 is an H-shaped structure, one end of the support frame 42 is connected to the inner side of the front end of the outer frame 1, and the other end of the support frame 42 is connected to the second connecting frame 43. In this embodiment, during installation, the left and right ends of the second connecting frame 43 are respectively welded to the connection between the outer frame 41 and the two connecting rods 5, and the front end of the support frame 42 with the H-shaped structure is welded to the inner side of the front end of the outer frame 41, and the rear end of the support frame 42 with the H-shaped structure is welded to the second connecting frame 43, so that the main frame 4 constitutes a frame with a stable structure.

[0038] like Figure 2 and Figure 4As shown, the support frame 42 includes a first support bar 421 and a second support bar 422; one end of the first support bar 421 is connected to the inner side of the front end of the outer frame 41, and the other end of the first support bar 421 is connected to the second connecting frame 43, and the left and right ends of the second support bar 422 are respectively connected to the inner sides of the two first support bars 421; the second connecting frame 43 is provided with a second protrusion 431, and the second protrusion 431 is connected to the second support bar 422. In this embodiment, the number of the first support bars 421 is two, one end of the two first support bars 421 is respectively welded to the inner side of the front end of the outer frame 41, the other ends of the two first support bars 421 are respectively welded to the inner sides of the left and right ends of the second connecting frame 43, the left and right ends of the second support bar 422 are respectively welded to the inner sides of the two first support bars 421, thereby forming an H-shaped support frame 42, and the second connecting frame 43 is provided with a second protrusion 431, the second protrusion 431 plays a buffering role, alleviates the deformation tendency of the outer frame 41, and reduces the deformation amount, and the second protrusion 431 is welded to the second support bar 422, further enhancing the structural stability of the main frame 4 and making it less likely to deform.

[0039] like Figure 2 and Figure 4 As shown, it also includes a first articulated seat 81, a second articulated seat 82, a first hinge 83 and a second articulated member 84; the first articulated seat 81 is installed at the bottom of the end of the second support bar 422, the first articulated member 83 is installed on the third swing frame 3, and the first articulated member 83 is hinged to the first articulated seat 81; the second articulated seat 82 is installed at the bottom of the end of the first support bar 421, the second articulated seat 82 is located on the outside of the first articulated seat 81, the second articulated member 84 is installed on the second swing frame 2, and the second articulated member 82 is hinged to the second articulated seat 82. In this embodiment, the first articulated seat 81 and the second articulated seat 82 have the same structure, the first hinge 83 and the second articulated seat 84 have the same structure, the first articulated seat 81 is respectively installed at the bottom of the left and right ends of the second support bar 422, and the second articulated seat 82 is respectively installed at the bottom of the front end of the two first support bars 421, so that the first articulated seat 81 and the second articulated seat 82 are staggered, the third swing frame 3 is installed with two first articulated members 83, and the two first articulated members 83 are respectively hinged to the two first articulated seats 81, so that the third swing frame 3 can swing forward and fold, and the second swing frame 2 is installed with two second articulated members 84, and the two second articulated members 84 are respectively hinged to the two second articulated seats 82, so that the second swing frame 2 can swing backward and fold, which is convenient and quick.

[0040] like Figure 5As shown, the first hinge seat 81 and the second hinge seat 82 are respectively provided with a reinforcing plate 85. In this embodiment, the first hinge seat 81 and the second hinge seat 82 are respectively provided with a reinforcing plate 85, and the reinforcing plate 85 is a triangular plate structure, through which the structural stability of the first hinge seat 81 and the second hinge seat 82 can be strengthened.

[0041] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0042] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A seat function frame, characterized in that: It includes a first swing frame, a second swing frame, a third swing frame and a main frame body; The rear sides of the left and right ends of the main frame are respectively provided with upwardly extending connecting rods, the left and right ends of the first swing frame are respectively hinged to the two connecting rods, the left and right ends of the second swing frame are respectively hinged to the bottom of the front end of the main frame, the left and right ends of the third swing frame are respectively hinged to the bottom of the rear end of the main frame, and the third swing frame can be swung and stored inside the second swing frame.

2. A seat functional frame according to claim 1, characterized in that: The connecting rod is arranged tilted.

3. A seat functional frame according to claim 1, characterized in that: It also includes a fixed part, a rotating part and a mounting shaft; The fixed member and the rotating member are respectively mounted on the mounting shaft, the fixed member is connected to the connecting rod, the fixed member is provided with a travel groove, the rotating member is connected to the first swing frame, the rotating member is provided with a convex block, the convex block is located in the travel groove, and the convex block can move along the length direction of the travel groove; Blocking sheets are respectively arranged on the left and right sides of the installation shaft, and the blocking sheets are used to prevent the fixing member or the rotating member from escaping from the installation shaft.

4. A seat functional frame according to claim 1, characterized in that: It also includes a first connecting frame, one end of which is connected to the inner side of one end of the first swing frame, the other end of which is connected to the inner side of the other end of the first swing frame, and a first protrusion is provided in the middle of the first connecting frame.

5. The seat functional frame according to claim 1, characterized in that: The main frame includes an outer frame, a support frame and a second connecting frame; The connecting rods are provided at the rear sides of the left and right ends of the outer frame, and the left and right ends of the second connecting frame are respectively connected to the connection between the outer frame and the two connecting rods; The support frame is located inside the outer frame, and the support frame is an H-shaped structure. One end of the support frame is connected to the inner side of the front end of the outer frame, and the other end of the support frame is connected to the second connecting frame.

6. A seat functional frame according to claim 5, characterized in that: The support frame includes a first support bar and a second support bar; One end of the first support bar is connected to the inner side of the front end of the outer frame, the other end of the first support bar is connected to the second connecting frame, and the left and right ends of the second support bar are respectively connected to the inner sides of the two first support bars; The second connecting frame is provided with a second protrusion, and the second protrusion is connected to the second supporting bar.

7. A seat functional frame according to claim 6, characterized in that: It also includes a first hinge seat, a second hinge seat, a first hinge member and a second hinge member; The first hinge seat is installed at the bottom of the end of the second support bar, the first hinge is installed on the third swing frame, and the first hinge is hinged to the first hinge seat; The second hinge seat is installed at the bottom of the end of the first support bar, the second hinge seat is located on the outside of the first hinge seat, the second hinge member is installed on the second swing frame, and the second hinge member is hinged to the second hinge seat.

8. A seat functional frame according to claim 7, characterized in that: The first hinge seat and the second hinge seat are respectively provided with a reinforcement plate.

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