CN114274850B - Backrest structure and seat - Google Patents
Backrest structure and seat Download PDFInfo
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- CN114274850B CN114274850B CN202111624366.2A CN202111624366A CN114274850B CN 114274850 B CN114274850 B CN 114274850B CN 202111624366 A CN202111624366 A CN 202111624366A CN 114274850 B CN114274850 B CN 114274850B
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Abstract
The application discloses a backrest structure, comprising a backrest and a safety belt, wherein the safety belt comprises a shoulder belt, a first fixing structure is arranged at the end part of the shoulder belt, a first fixing hole and a first adjusting hole are formed in the backrest, and the shoulder belt penetrates through the first fixing hole or the first adjusting hole; the plurality of first fixing holes are arranged at intervals along the height direction of the backrest, and the first adjusting holes are communicated with the plurality of first fixing holes; when the shoulder strap is fixed, the shoulder strap passes through one of the first fixing holes and is limited to be separated from the backrest by the first fixing structure; during adjustment, the shoulder strap can move along the first adjustment hole to the other first fixing holes. The application also discloses a seat. The height that this application can conveniently adjust the baldric is in order to satisfy the user demand of different age bracket children.
Description
Technical Field
The application relates to the technical field of seats, in particular to a backrest structure and a seat.
Background
The prior art child dining chairs or safety belts in the child safety seats are generally adjustable, but the length of the shoulder belts of the safety belts is generally adjustable, but the height of the shoulder belts is rarely adjustable, so that the prior safety belts cannot meet the requirements of children in different age groups.
Therefore, a backrest structure and a seat capable of conveniently adjusting the height of the shoulder strap are required to be designed.
Disclosure of Invention
The utility model aims at overcoming the defect of the prior art, provides a back structure and seat, can conveniently adjust the height of baldric in order to satisfy the user demand of different age bracket children.
The technical scheme of the application provides a backrest structure, which comprises a backrest and a safety belt, wherein the safety belt comprises a shoulder belt, a first fixing structure is arranged at the end part of the shoulder belt, a first fixing hole and a first adjusting hole are formed in the backrest, and the shoulder belt penetrates through the first fixing hole or the first adjusting hole;
the plurality of first fixing holes are arranged at intervals along the height direction of the backrest, and the first adjusting holes are communicated with the plurality of first fixing holes;
when the shoulder strap is fixed, the shoulder strap passes through one of the first fixing holes and is limited to be separated from the backrest by the first fixing structure;
during adjustment, the shoulder strap can move along the first adjustment hole to the other first fixing holes.
Preferably, the first fixing hole is a long hole, the first fixing hole is arranged along the length direction of the backrest, and the first fixing hole is arranged obliquely downwards from the inner side of the backrest to the outer side of the backrest along the height direction of the backrest.
Preferably, the first adjusting hole is provided along a height direction of the backrest, and the first adjusting hole is communicated with a middle portion of the first fixing hole.
Preferably, the backrest is further provided with a second fixing hole and a second adjusting hole, the second fixing holes are arranged at intervals along the height direction of the backrest, the second adjusting holes are communicated with the second fixing holes, and the second fixing holes are arranged on one side of the first fixing holes.
Preferably, a communication hole is arranged between the first adjusting hole and the second adjusting hole, and the communication hole is communicated with the first adjusting hole and the second adjusting hole.
Preferably, the first fixing structure is a clamping structure connected with one end of the shoulder strap penetrating out to the back of the backrest;
when the shoulder strap is fixed, the clamping structure is abutted to the back of the backrest and limits the shoulder strap from being separated from the backrest.
Preferably, the fastening structure comprises a limiting surface and a detaching surface, wherein the area of the limiting surface is larger than that of the first fixing hole, and the area of the detaching surface is smaller than that of the first fixing hole;
the shoulder strap is connected with the limiting surface, and the clamping structure can move relative to the shoulder strap;
when the shoulder strap is fixed, the clamping structure rotates until the limiting surface faces the first fixing hole, and the limiting surface abuts against the backrest and limits the shoulder strap to be separated from the backrest;
when the backrest is disassembled, the clamping structure rotates to the position that the disassembly surface faces the first fixing hole, so that the clamping structure can pass through the first fixing hole and be separated from the backrest.
Preferably, the fastening structure is formed by folding and fixing a plurality of layers of shoulder straps.
Preferably, the fastening structure comprises a fixed layer and an active layer, the fixed layer is connected with the active layer, the active layer is connected with the shoulder strap, and the active layer is provided with a folding space;
when the back rest is disassembled, the clamping structure rotates until the part of the shoulder belt, which is positioned on the back of the back rest, is retracted into the folding space so that the shoulder belt is flush with the movable layer, the cross section of the shoulder belt and the side surface of the fixed layer form the limiting surface, and the clamping structure rotates until the limiting surface faces the first fixing hole, so that the clamping structure can penetrate through the first fixing hole and is separated from the back rest.
Preferably, the safety belt further comprises a waistband, a second fixing structure is arranged at the end part of the waistband, a third fixing hole and a third adjusting hole are further formed in the backrest, and the waistband penetrates through the third fixing hole or the third adjusting hole;
the plurality of third fixing holes are arranged at intervals along the length direction of the backrest, and the third adjusting holes are communicated with the plurality of third fixing holes;
when the waistband is fixed, the waistband passes through one of the third fixing holes and is limited to be separated from the backrest by the second fixing structure;
during adjustment, the waistband can move into other third fixing holes along the third adjusting holes.
Preferably, the shoulder strap is provided with a length adjusting buckle for adjusting the length of the shoulder strap.
The invention also discloses a seat, which comprises the backrest structure.
After the technical scheme is adopted, the method has the following beneficial effects:
through setting up a plurality of first fixed orificess along the direction of height of back in this application, thereby the user can penetrate the shoulder strap to the height of adjusting the shoulder strap in the different first fixed orificess to satisfy different age bracket or not high children and use, and need not to take out the shoulder strap when adjusting the shoulder strap height, only need with shoulder strap along first regulation hole remove to different first fixed orificess in can, easy operation, it is convenient to use.
Drawings
The disclosure of the present application will become more readily understood with reference to the accompanying drawings. It should be understood that: the drawings are for illustrative purposes only and are not intended to limit the scope of the present application. In the figure:
FIG. 1 is a schematic front view of a backrest structure in one embodiment of the present invention;
FIG. 2 is a schematic rear view of the backrest structure in one embodiment of the present invention;
FIG. 3 is a schematic view of a backrest in one embodiment of the invention;
FIG. 4 is a schematic view of a back frame in one embodiment of the invention;
FIG. 5 is a schematic view of a first and second securing holes in one embodiment of the invention;
FIG. 6 is a schematic view of a third securing hole in one embodiment of the present invention;
FIG. 7 is a schematic view of a seat belt according to one embodiment of the present invention;
FIG. 8 is a schematic view of a fastening structure in one embodiment of the present invention;
FIG. 9 is a schematic view of a chute in one embodiment of the invention;
fig. 10 is a schematic view of a seat in one embodiment of the invention.
Reference numeral control table:
backrest 1: the first fixing hole 10, the first adjusting hole 11, the second fixing hole 12, the second adjusting hole 13, the communication hole 14, the third fixing hole 15, the third adjusting hole 16, the backrest frame 17, the reinforcing plate 171, the process notch 172, the transverse reinforcing rib 173, the longitudinal reinforcing rib 174, the side plate 18 and the chute 19;
safety belt 2: shoulder strap 21, first fixed structure 22, fastening structure 221, stop surface 2211, disassembly surface 2212, fixed layer 2213, movable layer 2214, folding space 2215, waist strap 23, second fixed structure 24, crotch strap 25, and fastening structure 26;
cushion skeleton 3: baffle 31, stop 32, opening 33.
Detailed Description
Specific embodiments of the present application are further described below with reference to the accompanying drawings.
It is easy to understand that, according to the technical solution of the present application, those skilled in the art may replace various structural manners and implementation manners without changing the true spirit of the present application. Accordingly, the following detailed description and drawings are merely illustrative of the present application and are not intended to be exhaustive or to be limiting of the application.
Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between the two components. The above-described specific meanings belonging to the present application are understood as appropriate by those of ordinary skill in the art.
In some embodiments of the present invention, a backrest structure is disclosed, as shown in fig. 1, comprising a backrest 1 and a seat belt 2, the seat belt 2 comprising a shoulder strap 21, as shown in fig. 2, the end of the shoulder strap 21 being provided with a first fixing structure 22, the backrest 1 being provided with a first fixing hole 10 and a first adjusting hole 11, the shoulder strap 21 passing through the first fixing hole 10 or the first adjusting hole 11;
the plurality of first fixing holes 10 are arranged at intervals along the height direction of the backrest 1, and the first adjusting holes 11 are communicated with the plurality of first fixing holes 10;
when being fixed, the shoulder strap 21 passes through one of the first fixing holes 10 and is restricted from being separated from the backrest 1 by the first fixing structure 22;
during adjustment, the shoulder strap 21 can be moved along the first adjustment aperture 11 to the other first fixing aperture 10.
As shown in fig. 7, the seat belt 2 is a five-point seat belt 2, and includes two shoulder straps 21, two waist straps 23, a crotch strap 25, and a fastening structure 26, and therefore, a set of first fixing holes 10 and a set of first adjusting holes 11 are respectively provided on the left and right sides of the backrest 1, respectively. The fastening structure 26 is connected with the crotch strap 25, and both the ends of the two groups of shoulder straps 21 and the ends of the two groups of waist straps 23 can be detachably connected with the fastening structure 26, so that the shoulder straps 21, the waist straps 23 and the fastening structure 26 can be separated from each other when riding, and the child can wear the safety belt 2 conveniently.
Specifically, the shoulder strap 21 is a flexible strap, and the hardness of the first fixing structure 22 is greater than that of the shoulder strap 21, so that the first fixing structure 22 can be conveniently inserted into or pulled out of the first fixing hole 10, and the first fixing structure 22 can stably abut against the back of the backrest 1 to achieve limiting. The first fixing hole 10 is fitted with the shoulder strap 21, and the shoulder strap 21 can pass through the first fixing hole 10 from the front surface of the backrest 1 to the back surface of the backrest 1 and be connected with the first fixing structure 22 provided at the back surface of the backrest 1, and restrict the separation of the shoulder strap 21 from the backrest 1 by the first fixing structure 22. As shown in fig. 1 and 3, a plurality of identical first fixing holes 10 are provided at equal intervals in the height direction of the backrest 1, respectively, i.e., a plurality of first fixing holes 10 are provided in the up-down direction of the figure, respectively, the axes of the first fixing holes 10 and the first adjusting holes 11 are provided in the front-rear direction of the backrest 1, the first adjusting holes 11 are provided in the height direction of the backrest 1, i.e., the first adjusting holes 11 are provided in the up-down direction of the figure and the first adjusting holes 11 communicate the plurality of first fixing holes 10, so that the shoulder straps 21 can be moved into different first fixing holes 10 through the first adjusting holes 11, thereby realizing adjustment of the heights of the shoulder straps 21.
Further, as shown in fig. 4, the backrest 1 includes a backrest frame 17, and a reinforcing plate 171 provided in the middle of the backrest frame 17 in the height direction of the backrest frame 17 is provided, so that the structural strength of the backrest frame 17 can be reinforced by the reinforcing plate 171. In addition, a plurality of groups of reinforcing ribs are further arranged on the backrest frame 17 to strengthen the structural strength of the backrest frame 17. Wherein the first fixing hole 10 and the first adjusting hole 11 penetrate through the back frame 17.
As shown in fig. 4, a process recess 172 is provided on the outer periphery of the first adjustment hole 11, and the stress concentration around the first adjustment hole 11 can be reduced by the process recess 172, thereby improving the structural strength of the back frame 17.
Still further, as shown in fig. 1, both sides of the back frame 17 are bent toward the front of the back frame 17 to form side plates 18 for restricting the left and right movement of the occupant, and as shown in fig. 4, a plurality of sets of lateral reinforcing ribs 173 provided along the length direction of the back 1 are provided on the side plates 18 for reinforcing the structural strength of the side plates 18. A plurality of sets of longitudinal reinforcing ribs 174 provided in the height direction of the backrest 1 are provided on the backrest frame 17 for reinforcing the longitudinal structural length of the backrest frame 17.
In some embodiments of the present invention, as shown in fig. 3, the first fixing hole 10 is a long hole, the first fixing hole 10 is disposed along the length direction of the backrest 1, and the first fixing hole 10 is disposed obliquely downward from the inside of the backrest 1 to the outside of the backrest 1 along the height direction of the backrest 1.
As shown in fig. 1, the left-right direction of the drawing is the longitudinal direction of the backrest, the up-down direction of the drawing is the height direction of the backrest, and the front-back direction of the drawing is the width direction of the backrest.
Specifically, the end of the first fixing hole 10 near the longitudinal center line of the backrest 1 is a high-level end, and the end of the first fixing hole 10 far away from the longitudinal center line of the backrest 1 is a low-level end, so that the shoulder strap 21 can be adapted to the shoulder of the occupant by arranging the first fixing hole 10 in an inclined manner, so that the shoulder strap 21 can be fitted to the shoulder of the occupant with improved fitting degree, and use comfort is improved.
Further, a buffer sleeve is sleeved on the shoulder strap 21, and the buffer sleeve can enlarge the contact area between the human body and the shoulder strap 21, so that the use comfort is improved. Optionally, the cushion cover is made of sponge.
In some embodiments of the present invention, as shown in fig. 3, the first adjustment hole 11 is provided in the height direction of the backrest 1, and the first adjustment hole 11 communicates with the middle of the first fixing hole 10.
Wherein the first adjustment hole 11 communicates with the middle of the first fixing hole 10, so that the shoulder strap 21 is easier to rotate to the first adjustment hole 11.
Further, when the shoulder strap 21 is fixed, the shoulder strap 21 is positioned in one of the first fixing holes 10, and at this time, the shoulder strap 21 is approximately parallel to the surface of the backrest 1, i.e. the contact area between the shoulder strap 21 and the human body is larger, so that the comfort and safety during wearing are improved. When the height of the shoulder strap 21 needs to be adjusted, the user can rotate the shoulder strap 21 to be approximately perpendicular to the backrest 1 because the shoulder strap 21 is a flexible strap, and at this time, the shoulder strap 21 can enter the first adjusting hole 11 and move the shoulder strap 21 to the first fixing holes 10 with different heights through the first adjusting hole 11, so as to meet the needs of children of different ages or heights. Meanwhile, the first fixing holes 10 are communicated through the first adjusting holes 11, so that when the height of the shoulder strap 21 is adjusted, a user does not need to detach the shoulder strap 21, and only needs to move the shoulder strap 21 to different first fixing holes 10 along the first adjusting holes 11, so that the use and adjustment are more convenient.
Alternatively, the first adjustment hole 11 can also communicate with the end of the first fixing hole 10.
Alternatively, one first adjustment hole 11 is provided in two adjacent first fixing holes 10, and two adjacent first adjustment holes 11 are staggered, that is, two adjacent first adjustment holes 11 are not on the same straight line.
In some embodiments of the present invention, as shown in fig. 5, the backrest 1 is further provided with a second fixing hole 12 and a second adjusting hole 13, the plurality of second fixing holes 12 are spaced apart along the height direction of the backrest 1, the second adjusting hole 13 communicates with the plurality of second fixing holes 12, and the second fixing hole 12 is disposed at one side of the first fixing hole 10.
Specifically, as shown in fig. 5, the first fixing hole 10 and the second fixing hole 12 are identical in shape and size, and the first fixing hole 10 and the second fixing hole 12 are parallel, and correspondingly, the first adjusting hole 11 and the second adjusting hole 13 are identical in shape and size and are parallel to each other. The first fixing hole 10 and the second fixing hole 12 are respectively positioned at different length positions of the backrest 1, when the distance between the two shoulder straps 21 needs to be adjusted, a user can detach the shoulder straps 21 from the first fixing hole 10 and put the shoulder straps into the second fixing hole 12, so that the distance between the two shoulder straps 21 is adjusted, and the requirements of passengers with different shoulder widths are met.
Similarly, the shoulder strap 21 can be moved into the second fixing holes 12 of different heights along the second adjusting holes 13 to adjust the height of the shoulder strap 21, and the distance adjustment of the shoulder strap 21 and the height adjustment of the shoulder strap 21 can be simultaneously realized by arranging the first fixing holes 10 and the second fixing holes 12, so that passengers with different requirements can be satisfied.
Alternatively, the second fixing holes 12 and the second adjusting holes 13 may be provided in plural groups, thereby making the adjustment range of the interval of the shoulder straps 21 wider.
In some embodiments of the present invention, as shown in fig. 5, a communication hole 14 is provided between the first and second adjustment holes 11 and 13, and the communication hole 14 communicates the first and second adjustment holes 11 and 13.
Further, the positions and the numbers of the first fixing holes 10 and the second fixing holes 12 in the lateral direction correspond, the first fixing holes 10 and the second fixing holes 12 are provided at least two, communication between the first adjusting holes 11 and the second adjusting holes 13 can be achieved by providing the communication holes 14, when the interval between the two shoulder straps 21 needs to be adjusted, the user can move the shoulder straps 21 into the first adjusting holes 11 or the second adjusting holes 13 along the communication holes 14, and then move the shoulder straps 21 into the first fixing holes 10 or the second fixing holes 12. The distance between the shoulder straps 21 can be adjusted by arranging the communication holes 14 without detaching and reinstalling the shoulder straps 21, and the installation is convenient and simple.
Still further, as shown in fig. 5, at least one communication hole 14 is provided between two adjacent first fixing holes 10, and the communication hole 14 communicates with the first adjusting hole 11 and the second adjusting hole 13.
By arranging at least one communication hole 14 between the two first fixing holes 10, when only the distance between the shoulder straps 21 needs to be adjusted, a user only needs to move the shoulder straps 21 to the first adjusting holes 11 or the second adjusting holes 13 and then move the shoulder straps 21 along the communication holes 14 to the adjusting positions, and then move the shoulder straps 21 to the first fixing holes 10 or the second fixing holes 12 with the same height before adjustment, so that the adjustment is more convenient.
Alternatively, only one communication hole 14 may be provided.
In some embodiments of the present invention, the first fixing structure 22 is a fastening structure 221 connected to an end of the shoulder strap 21 that passes out to the back of the backrest 1;
when the shoulder strap 21 is fixed, the locking structure 221 abuts against the back surface of the backrest 1 and restricts the shoulder strap 21 from being separated from the backrest 1.
Wherein, the occupant is restrained on the front surface of the backrest 1 through the shoulder straps 21, the waist belt 23 and the crotch belt 25, and the shoulder straps 21 are driven to move forward when the occupant moves forward under the action of inertia, at this time, the shoulder straps 21 cannot move forward further because the fastening structure 221 is abutted on the back surface of the backrest 1, so that the forward movement of the occupant can be restrained.
In some embodiments of the present invention, as shown in fig. 8, the fastening structure 221 includes a limiting surface 2211 and a detaching surface 2212, the area of the limiting surface 2211 is larger than the area of the first fixing hole 10, and the area of the detaching surface 2212 is smaller than the area of the first fixing hole 10;
the shoulder strap 21 is connected to the stopper surface 2211, and the locking structure 221 is movable relative to the shoulder strap 21;
when the shoulder strap is fixed, the fastening structure 221 rotates until the limiting surface 2211 faces the first fixing hole 10, and the limiting surface 2211 abuts against the backrest 1 and limits the shoulder strap 21 to be separated from the backrest 1;
when the backrest is detached, the fastening structure 221 is rotated until the detachment surface 2212 faces the first fixing hole 10, so that the fastening structure 221 can pass through the first fixing hole 10 and be separated from the backrest 1.
Further, the fastening structure 221 is a plate-like structure, wherein the position of the fastening structure 221 can be rotatably adjusted because the shoulder strap 21 is a flexible strap. When the shoulder strap 21 is fixed, the fastening structure 221 rotates to the back surface of the back rest 1 with the stop surface 2211 facing the back rest 1, and when the shoulder strap 21 is pulled forward by an external force, the stop surface 2211 of the fastening structure 221 abuts against the back surface of the back rest 1 to thereby limit the separation of the shoulder strap 21 from the back rest 1. When the fastening structure 221 needs to be removed, the fastening structure 221 is rotated to make the removal surface 2212 face the back of the backrest 1, and the fastening structure 221 is adjusted to align the fastening structure 221 with the first fixing hole 10, at this time, the fastening structure 221 can be penetrated out of the first fixing hole 10, so that the shoulder strap 21 is separated from the backrest 1.
Alternatively, the fastening structure 221 may also be a non-detachable structure. Specifically, as shown in fig. 9, a slide groove 19 corresponding to the first fixing hole 10 and the first adjusting hole 11 is provided on the back surface of the backrest 1, the fastening structure 221 is slidably provided in the slide groove 19 and is capable of sliding up and down along the slide groove 19, and the fastening structure 221 is restricted from moving in the front-rear direction by the slide groove 19, so that the fastening structure 221 cannot be separated from the backrest 1. Correspondingly, a sliding groove 19 corresponding to the second fixing hole 12 and the second adjusting hole 13 is also arranged on the back surface of the backrest 1.
Alternatively, the fastening structure 221 may be a hard plate, and the shoulder strap 21 is connected to the hard plate, and when fixed, the hard plate abuts against the back surface of the backrest 1 to limit the separation of the shoulder strap 21 from the backrest 1.
Alternatively, the fastening structure 221 is formed by knotting an end of the shoulder strap 21 such that the fastening structure 221 cannot pass through the first fixing hole 10 and the first adjustment hole 11 such that the shoulder strap 21 cannot be separated from the backrest 1.
In some embodiments of the present invention, the shoulder strap 21 is provided with a length adjusting buckle for adjusting the length of the shoulder strap 21. The length of the shoulder straps 21 can be adjusted by adjusting the buckles through the shoulder straps 21, thereby meeting the use of passengers with different requirements.
Alternatively, the first fixing structure 22 may also be a retractor provided on the back of the backrest 1, in which the shoulder belt 21 is wound, the shoulder belt 21 being pulled out when the seat belt 2 needs to be worn, and the retractor being capable of restricting the shoulder belt 21 from being pulled out to restrict the occupant from continuing to move forward when the occupant suddenly moves forward by inertia.
In some embodiments of the present invention, as shown in fig. 8, the fastening structure 221 is formed by folding and fixing the multi-layered shoulder straps 21.
Specifically, after the shoulder strap 21 is folded at one end of the back surface of the backrest 1, the adjacent shoulder straps 21 can be fixedly connected together by means of a seam or an adhesive, and the folded multi-layered shoulder strap 21 is not easy to deform and has a large volume, so that separation of the shoulder strap 21 from the backrest 1 can be restricted.
In some embodiments of the present invention, as shown in fig. 8, the fastening structure 221 includes a fixed layer 2213 and an active layer 2214, the fixed layer 2213 is connected with the active layer 2214, the active layer 2214 is connected with the shoulder strap 21, and the active layer 2214 has a folding space 2215;
when the backrest is disassembled, the fastening structure 221 is rotated until the part of the shoulder strap 21 located at the back of the backrest 1 is retracted into the folding space 2215 so that the shoulder strap 21 is flush with the movable layer 2214, the cross section of the shoulder strap 21 and the side surface of the fixed layer 2213 form a limiting surface 2211, and the fastening structure 221 is rotated until the limiting surface 2211 faces the first fixing hole 10, so that the fastening structure 221 can pass through the first fixing hole 10 and be separated from the backrest 1.
Preferably, the fixing layer 2213 includes at least two layers of shoulder straps 21, so that the fixing layer 2213 is not easily deformed, and the fastening structure 221 can be firmly abutted against the back surface of the backrest 1. The shoulder straps 21 are folded over to the surface of the fixed layer 2213 to form an active layer 2214. When fixed, the fastening structure 221 is rotated to be perpendicular to the portion of the shoulder strap 21 passing through the first fixing hole 10 and such that the fastening structure 221 covers the first fixing hole 10 and abuts against the back surface of the backrest 1, thereby restricting the separation of the shoulder strap 21 from the backrest 1. When the shoulder strap 21 needs to be removed, the fastening structure 221 is rotated by 90 ° so that the portion of the shoulder strap 21 located on the back of the backrest 1 rotates into the folding space 2215, at this time, the shoulder strap 21 is flush with the movable layer 2214 and just rotates until the limiting surface 2211 faces the first fixing hole 10, and the fastening structure 221 can be pulled out from the first fixing hole 10 by pulling the shoulder strap 21 outwards, so as to separate the shoulder strap 21 from the backrest 1.
In some embodiments of the present invention, as shown in fig. 2 and 7, the seat belt 2 further includes a waistband 23, the end of the waistband 23 is provided with a second fixing structure 24, the backrest 1 is further provided with a third fixing hole 15 and a third adjusting hole 16, and the waistband 23 passes through the third fixing hole 15 or the third adjusting hole 16;
the plurality of third fixing holes 15 are arranged at intervals along the length direction of the backrest 1, and the third adjusting holes 16 are communicated with the plurality of third fixing holes 15;
when being fixed, the waistband 23 passes through one of the third fixing holes 15 and is limited to be separated from the backrest 1 by the second fixing structure 24;
during adjustment, the waistband 23 can be moved along the third adjustment aperture 16 into the other third fixing aperture 15.
The distance between the two waistbands 23 can be adjusted by arranging a plurality of third fixing holes 15 so as to meet the use requirements of different users. And can need not to dismantle waistband 23 and reinstallate when adjusting waistband 23 through third regulation hole 16, only need with waistband 23 along third regulation hole 16 remove in different third fixed orifices 15 can, adjust convenient quick.
The second fixing structure 24 has the same structure as the first fixing structure 22, and is a fastening structure 221.
As a preferred embodiment of the present invention, as shown in fig. 1, the backrest structure comprises a backrest 1 and a seat belt 2, wherein the seat belt 2 is a five-point seat belt 2, and as shown in fig. 7, the seat belt 2 comprises two groups of shoulder straps 21, two groups of waist straps 23, a crotch strap 25 and a buckle structure 26, the buckle structure 26 is fixedly connected with the crotch strap 25, one end of the shoulder strap 21 is connected with the backrest 1, the other end is detachably connected with the buckle structure 26, one end of the waist strap 23 is connected with the backrest 1, and the other end is detachably connected with the buckle structure 26.
As shown in fig. 1-3, a set of first fixing holes 10 and first adjusting holes 11 are respectively disposed on the left and right sides of the backrest 1, and a plurality of first fixing holes 10 are disposed at intervals along the height direction of the backrest 1, and the first fixing holes 10 are long holes, one end of the first fixing holes 10 close to the longitudinal center line of the backrest 1 is located above one end of the first fixing holes 10 far from the longitudinal center line of the backrest 1, so that the first fixing holes 10 incline from inside to outside. The first adjustment holes 11 communicate the plurality of first fixing holes 10.
The end of the shoulder strap 21 passes through the first fixing hole 10 or the first adjusting hole 11 to the back of the backrest 1, and a first fixing structure 22 is arranged on the back of the backrest 1, wherein the first fixing structure 22 is a fastening structure 221, and the fastening structure 221 is a fastening structure 221 formed by folding multiple layers of shoulder straps 21. Wherein, the fastening structure 221 includes a limiting surface 2211 and a detaching surface 2212, the area of the limiting surface 2211 is larger than the area of the first fixing hole 10, and the area of the detaching surface 2212 is smaller than the area of the first fixing hole 10, so when the limiting surface 2211 faces the back of the backrest 1, the limiting surface 2211 can cover the first fixing hole 10 and the fastening structure 221 cannot penetrate out of the first fixing hole 10, so that the shoulder strap 21 and the backrest 1 cannot be separated. When the dismounting surface 2212 faces the first fixing hole 10, the fastening structure 221 can be penetrated out from the first fixing hole 10 so that the shoulder strap 21 can be separated from the backrest 1.
In this application, the shoulder strap 21 can be fixed in the first fixed orifices 10 of different height positions to satisfy the user's use of different age bracket or height, when adjusting the height of shoulder strap 21, the user need not to dismantle the separation with shoulder strap 21 and back 1, only need with shoulder strap 21 along first regulation hole 11 remove to the first fixed orifices 10 of different height can, adjust convenient simple.
The invention also discloses a seat, as shown in fig. 10, comprising the backrest structure.
Further, the seat further comprises a cushion framework 3, and the lower end of the backrest 1 is connected with the cushion framework 3 through a rotating structure, so that the backrest 1 can rotate relative to the cushion framework 3, and the effect of adjusting the inclination angle of the backrest 1 is achieved.
The left and right sides of the seat cushion frame 3 are provided with the baffle plates 31, which can restrict the left and right movement of the occupant. The stopper 32 is provided at the front end of the seat cushion frame 3, and an opening 33 is provided between the stopper 32 and the side guards 31 to allow the legs of the occupant to extend, and the stopper 32 can restrict the occupant from coming out of the seat. One end of the crotch strap 25 is connected to the seat cushion frame 3, and the other end is connected to the buckle structure 26.
The seat can be used as a child dining chair or a child safety seat.
The foregoing is only the principles and preferred embodiments of the present application. It should be noted that several other variants are possible to those skilled in the art on the basis of the principles of the present application and should also be considered as the protection scope of the present application.
Claims (10)
1. A backrest structure comprising a backrest (1) and a safety belt (2), wherein the safety belt (2) comprises a shoulder belt (21), and a first fixing structure (22) is arranged at the end part of the shoulder belt (21), and the safety belt is characterized in that a first fixing hole (10) and a first adjusting hole (11) are arranged on the backrest (1), and the shoulder belt (21) passes through the first fixing hole (10) or the first adjusting hole (11);
the plurality of first fixing holes (10) are arranged at intervals along the height direction of the backrest (1), and the first adjusting holes (11) are communicated with the plurality of first fixing holes (10);
when the shoulder strap (21) is fixed, the shoulder strap (21) passes through one of the first fixing holes (10) and is limited to be separated from the backrest (1) by the first fixing structure (22);
during adjustment, the shoulder strap (21) can move along the first adjustment hole (11) to the other first fixing holes (10);
the first fixing structure (22) is a clamping structure (221) connected with one end of the shoulder strap (21) penetrating out to the back of the backrest (1);
the clamping structure (221) comprises a fixed layer (2213) and an active layer (2214), the fixed layer (2213) is connected with the active layer (2214), the active layer (2214) is connected with the shoulder strap (21), and the active layer (2214) is provided with a folding space (2215);
when the backrest is disassembled, the clamping structure (221) rotates until the part of the shoulder strap (21) positioned on the back of the backrest (1) is retracted into the folding space (2215) so that the shoulder strap (21) is flush with the movable layer (2214), and the clamping structure (221) can penetrate through the first fixing hole (10) and be separated from the backrest (1).
2. The backrest structure according to claim 1, characterized in that the first fixing hole (10) is a long hole, the first fixing hole (10) is provided along a length direction of the backrest (1), and the first fixing hole (10) is provided obliquely downward along a height direction of the backrest (1) from an inner side of the backrest (1) to an outer side of the backrest (1).
3. Backrest structure according to claim 1, characterized in that the first adjustment hole (11) is arranged in the height direction of the backrest (1), the first adjustment hole (11) communicating with the middle of the first fixing hole (10).
4. The backrest structure according to claim 1, wherein the backrest (1) is further provided with a second fixing hole (12) and a second adjusting hole (13), a plurality of the second fixing holes (12) are arranged at intervals along the height direction of the backrest (1), the second adjusting hole (13) is communicated with a plurality of the second fixing holes (12), and the second fixing hole (12) is arranged at one side of the first fixing hole (10).
5. The backrest structure according to claim 4, characterized in that a communication hole (14) is provided between the first adjustment hole (11) and the second adjustment hole (13), the communication hole (14) communicating the first adjustment hole (11) and the second adjustment hole (13).
6. The backrest structure of claim 1, characterized in that the fastening structure (221) comprises a limiting surface (2211) and a detaching surface (2212), the limiting surface (2211) having an area larger than the area of the first fixing hole (10), the detaching surface (2212) having an area smaller than the area of the first fixing hole (10);
the shoulder strap (21) is connected with the limiting surface (2211), and the clamping structure (221) can move relative to the shoulder strap (21);
when the shoulder strap is fixed, the clamping structure (221) rotates until the limiting surface (2211) faces the first fixing hole (10), and the limiting surface (2211) abuts against the backrest (1) and limits the shoulder strap (21) to be separated from the backrest (1);
when the backrest is detached, the clamping structure (221) rotates until the detaching surface (2212) faces the first fixing hole (10) so that the clamping structure (221) can penetrate through the first fixing hole (10) and be separated from the backrest (1).
7. The backrest structure according to claim 6, characterized in that the fastening structure (221) is formed by folding and fixing a plurality of layers of the shoulder straps (21).
8. The backrest structure according to any one of claims 1 to 7, characterized in that the safety belt (2) further comprises a waist belt (23), the end of the waist belt (23) is provided with a second fixing structure (24), the backrest (1) is further provided with a third fixing hole (15) and a third adjusting hole (16), and the waist belt (23) passes through the third fixing hole (15) or the third adjusting hole (16);
the plurality of third fixing holes (15) are arranged at intervals along the length direction of the backrest (1), and the third adjusting holes (16) are communicated with the plurality of third fixing holes (15);
when being fixed, the waistband (23) passes through one of the third fixing holes (15) and is limited to be separated from the backrest (1) by the second fixing structure (24);
during adjustment, the waistband (23) can move along the third adjusting hole (16) into the other third fixing holes (15).
9. Backrest structure according to any one of claims 1-7, characterized in that the shoulder straps (21) are provided with length adjustment buckles for adjusting the length of the shoulder straps (21).
10. A seat comprising a backrest structure as claimed in any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624366.2A CN114274850B (en) | 2021-12-28 | 2021-12-28 | Backrest structure and seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111624366.2A CN114274850B (en) | 2021-12-28 | 2021-12-28 | Backrest structure and seat |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114274850A CN114274850A (en) | 2022-04-05 |
| CN114274850B true CN114274850B (en) | 2023-04-28 |
Family
ID=80877338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111624366.2A Active CN114274850B (en) | 2021-12-28 | 2021-12-28 | Backrest structure and seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114274850B (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3112458C2 (en) * | 1981-03-28 | 1984-03-08 | Adam Opel AG, 6090 Rüsselsheim | Step-by-step height-adjustable seat belt deflection in vehicles, in particular motor vehicles |
| JPS5954325U (en) * | 1982-10-04 | 1984-04-10 | タカタ株式会社 | Child protection sheet |
| US5449223A (en) * | 1994-06-07 | 1995-09-12 | Hoover Universal, Inc. | Shoulder belt height adjustment mechanism |
| US5899534A (en) * | 1994-06-20 | 1999-05-04 | Trw Vehicle Safety Systems Inc. | Child seat for a vehicle and a seat belt system for the child seat |
| NO316877B1 (en) * | 2001-07-18 | 2004-06-07 | Hts Hans Torgersen & Sonn As | Child restraint system |
| JP5623172B2 (en) * | 2010-07-24 | 2014-11-12 | タカタ株式会社 | child seat |
| CN102795124B (en) * | 2011-05-27 | 2016-04-06 | 明门香港股份有限公司 | Safety seat |
| EP2546096B1 (en) * | 2011-07-14 | 2013-09-11 | Volvo Car Corporation | Child seat |
| CN207826190U (en) * | 2018-01-23 | 2018-09-07 | 上海沃雨电子科技有限公司 | The safety belt gear shifting structure of child safety seat |
-
2021
- 2021-12-28 CN CN202111624366.2A patent/CN114274850B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN114274850A (en) | 2022-04-05 |
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