CN211269059U - A backpack and sitting posture correction and vision protection device - Google Patents

Abstract

The utility model belongs to the technical field of student supplies, and specifically discloses a backpack and a sitting posture correction and vision protection device. The backpack comprises two rectangular strip-shaped lower channel belts, two rectangular strip-shaped front channel belts, and a rectangular strip-shaped Chest strap, two rectangular shoulder straps and bag-shaped bag body; it can diversify the functions of the backpack, that is, when the bag body is loaded with a heavy load, it can improve the fit between the center of gravity of the bag and the student's back, Improve the stability of the bag body when it is carried, reduce the pressure of the bag body on students and the feeling of falling back, and improve the safety and comfort of use; at the same time, it can form a simple handbag according to needs; The improved lower channel belt, front channel belt, chest belt and shoulder belt are connected and assembled into a sitting posture correction and vision protection device, so as to conveniently and practically correct students' sitting posture and protect students' eyesight.

Description

A backpack and sitting posture correction and vision protection device

technical field

The invention belongs to the technical field of student supplies, and relates to a backpack, in particular to a backpack and a sitting posture correction and vision protection device.

Background technique

At present, most of the backpacks commonly used by students are in the structure of a bag body. The upper and lower ends of the back of the bag body are respectively connected with the upper and lower ends of the two shoulder straps to form two shoulder strap structures. However, such a backpack is in the bag body. When there are many books and heavy loads, there is a strong feeling of falling on the back, and the center of gravity of the bag has a poor fit with the back of the user, which makes the bag body feel downward pressure on the student's body and pull backward. It will cause the students to feel less comfortable, and will affect the students' spine health, especially when the students need to carry the schoolbag to run a few steps or go up the stairs in a hurry, the unstable center of gravity of the heavy-loaded schoolbag is easier Separating from the student's back further enhances the feeling of falling and pulling backwards. At this time, it is easy to cause the student's own center of gravity to be unstable and reduce the safety of use. The invention patent of publication number CN105411159A discloses a backpack, which includes a bag body, a shoulder strap is arranged on the bag body, and a pull strap is connected to the bag body; The strap, the shoulder strap and the bottom strap are set as an integrated structure; one end of the strap is set as a fixed end, and the other end of the strap is set as a stretch end; the fixed end of the strap is fixed on the bottom strap at the bottom of the bag body; The drawstring, the bottom support belt and the shoulder strap form a support structure; a hollow bag body drawstring channel is arranged on the front side of the bag body, and the drawstring extends into the bag body drawstring channel; the shoulder strap is provided with a hollow shoulder part A drawstring channel, the drawstring extends into the shoulder drawstring channel; a hollow turning channel can be provided on the shoulder strap at the position where the drawstring protrudes from the outlet end of the shoulder drawstring channel, and the drawstring extends from the turning channel. out to form a chest strap. In the backpack of the invention, a bottom support belt is arranged at the bottom of the bag body, a drawstring is arranged on the front side of the bag body, and a shoulder strap is arranged at the rear side of the bag body, wherein one end of the support bottom belt is fixedly connected with the bottom of the bag body. , the other end of the bottom strap is connected with one end of the pull strap, the other end of the strap is connected with one end of the shoulder strap, and the other end of the shoulder strap is connected with the end of the bottom strap fixed at the bottom of the bag body, that is, the other end of the shoulder strap One end is also fixedly connected to the bottom of the bag body, so that the drawstring, the bottom support belt and the shoulder strap are connected in turn, forming a support structure for the bag body. The drawstring passes through the drawstring channel, so that the drawstring can be guided and limited by the drawstring channel, so as to realize the guide for the support structure composed of the drawstring, the bottom belt and the shoulder strap. Sexual limiting effect. The above-mentioned structure of the backpack of the present invention, although there are many books loaded in the bag body and the load is heavy, the support structure composed of the drawstring, the bottom support belt and the shoulder strap plays a wrapping and supporting role for the bag body. , and cooperate with the drawstring to protrude from the turning channel to form a chest belt, so that the overall load-bearing structure forms an integrated, well-fitting and stable wrapping and supporting structure, thereby reducing the downward pressure of the heavy-load bag on the student's body. It can improve the comfort of students and reduce the impact on students' spine health, especially when students need to run a few steps in a hurry or need to climb stairs, the above-mentioned integral wrapping supports The support structure can further achieve the above-mentioned effects of reducing the feeling of pressure and falling back, and improving the comfort performance and the safety of use. However, this kind of backpack in the prior art has a single function, and cannot achieve the above-mentioned effects, at the same time, from the actual study life and use needs of the students, it is convenient and practical to correct the sitting posture of the students, and improve the eyesight of the students. protection issues.

SUMMARY OF THE INVENTION

In view of the deficiencies in the prior art, the purpose of the present invention is to provide a backpack and a sitting posture correction and vision protection device, so as to solve the problem that the backpack in the prior art has a single function and cannot improve the center of gravity of the bag when the bag body is loaded with a heavy load. The fit with the student's back improves the stability of the bag when it is carried, and reduces the pressure on the student and the feeling of being pulled back. The problem of correcting the students' sitting posture and protecting the students' eyesight.

For this purpose, the present invention adopts the following technical solutions:

One aspect of the present invention provides a backpack comprising two rectangular strip-shaped lower channel straps, two rectangular strip-shaped front channel straps, a rectangular strip-shaped chest strap, two rectangular strip-shaped shoulder straps and pockets The two lower channel belts are evenly distributed on the left and right sides under the bag body, and at least two lower channel belts are arranged on the left and right sides of the front and rear ends of the two lower channel belts evenly distributed in the front-rear direction. The front and rear ends of the bottom surface of the package body are respectively provided with lower female snaps matching the lower sub snaps, and the two lower channel belts are connected with the bottom surface of the package body through the lower child snaps and the lower female snaps respectively. The opening gap between the channel belt and the bottom surface of the bag body along the front-rear direction constitutes a lower channel; the two front channel belts are evenly distributed on the left and right sides of the front of the bag body, and the front and rear end of the two front channel belts are uniformly distributed. The left and right sides are respectively provided with at least two front sub-snap buttons evenly distributed in the up-down direction, the upper and lower ends of the front side of the bag are respectively provided with front female snap-buttons matching with the front sub-snap buttons, and the two front channel belts are The front side of the bag body is connected by the front child snap button and the front female snap button respectively, and the opening gap along the front and rear direction between the front channel belt and the front side of the bag body constitutes the front channel; the two shoulder straps pass through the left side in turn. The lower channel and the front channel on the side, and the lower channel and the front channel on the right side, and one end and the other end of the shoulder strap are respectively connected behind the bag body through adjustment buckles; the upper and lower ends of the left and right side of the chest strap are respectively set There are at least two neutron snaps evenly distributed along the left and right directions. The two shoulder straps in the middle of the rear side of the bag are respectively provided with middle female snaps matching the upper zipper. The left and right sides of the chest strap are The two shoulder straps are respectively connected by a neutron snap button and a middle female snap button; the front of the shoulder strap is respectively provided with a rectangular strip-shaped auxiliary strap, the auxiliary straps are all located at the rear of the bag body, and the upper end of the auxiliary strap is above the chest strap. The lower end of the auxiliary belt is connected with the shoulder strap under the adjustment buckle; The left side and the right side of the lower end of the shoulder strap on the right side in front of the bag body are respectively provided with outer female snap buttons matching the lower sub snap buttons; the right side of the lower end of the left auxiliary belt, and the left side of the right auxiliary belt , the right side of the lower end of the shoulder strap on the left side in front of the bag body, and the left side of the lower end of the shoulder strap on the right side in front of the bag body are respectively provided with inner female snap buttons matching the front sub snap buttons; the upper ends of the auxiliary belts are respectively provided with There are upper female snaps that match the neutron snaps.

In the above-mentioned backpack of the present application, the shoulder straps are passed through the lower channel at the bottom of the bag body and the front channel at the front, and then the two ends of the shoulder straps are connected at the rear of the bag body through adjustment buckles to form a ring structure wrapped around the periphery of the bag body , so that the shoulder strap constitutes an overall structure that wraps and wraps the bag body. After the user wears the bag body through the shoulder strap, and then cooperates with the chest strap that blocks the front side of the user's body, the bag body with heavy load can be wrapped and wrapped as a whole. On the back of the user, improve the fit between the center of gravity of the bag and the back of the user, improve the stability of the bag when it is carried, and reduce the pressure of the bag on students and the feeling of falling back; the end of the chest strap can pass through The neutron snap button and the middle female snap button are connected or released from the shoulder strap, so as to facilitate the user to carry or put down the bag body. Specifically, when the bag body needs to be carried on the back, the user carries the bag body through the shoulder strap, and then connects the two ends of the chest strap with the shoulder strap. With the connection of the female snap button, the user can get out of the limited restraint structure of the chest strap to put down the backpack.

When there is no need to use the shoulder strap, and the bag body only needs to be used as a handbag, each channel strap and the shoulder strap can be removed through each snap button, and a hand strap can be connected to the top of the bag body. That is, the center of the top of the bag body can be connected with both ends of the hand strap.

In addition, in order to prevent the shoulder straps from moving along the length direction in each channel when the user is using the backpack, the inner sides of the shoulder straps at the front and bottom of the bag body and the outer sides of the front and lower parts of the bag body can be installed. A matching fixed snap button is arranged on the side, and the snap button is fixedly connected, so that the shoulder strap can be prevented from moving along its length direction in each channel. For example, the fixed snaps are arranged on the inner side of the shoulder strap and the outer side of the bag in the lower channel and the front channel, or the fixed snaps are arranged on the inner side of the shoulder strap and the outer side of the bag at the bottom and top of the bag body. The buckles are simultaneously arranged in the lower channel and the front channel, and on the inner side of the shoulder strap and the outer side of the bag at the bottom and top of the bag body. The number and distribution of the fixed snaps can be set as required. For example, the number of fixed snaps at each location is four groups, and each group of fixed snaps is evenly distributed into a rectangle.

As mentioned above, the above-mentioned structure of the above-mentioned backpack of the present application is to solve the problem that the backpack in the prior art has a single function, and it is impossible to improve the fit between the center of gravity of the bag and the student's back when the bag body is loaded with a heavy load, and to improve the performance of the bag. The stability of the body when carrying the body can reduce the pressure of the body and the feeling of falling back on the students, and at the same time, it can conveniently and practically correct the students' sitting posture and improve the students' health based on the students' actual learning life and use needs. The problem of vision protection; for this reason, the present application provides a backpack and a sitting posture correction and vision protection device on the other hand, and the sitting posture correction and vision protection device is designed to pass the backpack provided by one aspect of the application. The front channel belt, the chest belt and the shoulder belt are formed. By combining and connecting the lower channel belt, the front channel belt, the chest belt and the shoulder belt of the above-mentioned backpack of the present application, it is possible to correct the sitting posture of the user and adjust the user's posture. The device for protecting eyesight diversifies the functions of the above-mentioned backpack of the present application, and meets the needs of students in actual study, life and use.

Another aspect of the present application provides a sitting posture correction and vision protection device, including the lower channel belt, the front channel belt, the chest belt, the shoulder belt and the auxiliary belt in the backpack according to one aspect of the application; each lower channel belt is along its length direction. The lower sub-snap buttons at both ends are respectively connected with an auxiliary belt and the outer female snaps of the adjacent shoulder straps; The snaps are connected, and the front sub-snap buttons at both ends of the other front channel belt along its length direction are respectively connected with the inner female snap-buttons of the two shoulder straps; Upper female snap connection on auxiliary strap.

The above-mentioned sitting posture correction and vision protection device of the present application may be used in a specific use scenario. After the student carries the backpack described in one aspect of the present application to school or home, the lower button of the lower channel belt is connected to the lower mother of the bag body. The snaps are disconnected, so that the lower channel belt is separated from the bag body; The buckle is disconnected from the middle female snap button of the bag body, so that the chest strap is separated from the bag body; at the same time, the shoulder strap is removed, and then the disassembled lower channel strap, front channel strap, chest strap and shoulder strap are removed according to another method of the present application. The structure of the sitting posture correction and vision protection device described in the aspect is connected to form the above sitting posture correction and vision protection device. It can be seen that the two lower channel belts and the two front channel belts are connected to the front part of the shoulder strap and the auxiliary belt at intervals in turn. In the lower part of the formed ring, the two lower channel belts and the two front channel belts form a horizontal annular sleeve structure at intervals in turn, the front part of the shoulder strap and the auxiliary belt form two longitudinal annular sleeve structures, and the longitudinal annular sleeve structure The upper part of the chair and the chest belt connected between the two auxiliary belts constitute the upper limit structure, then the back of the chair can be inserted through the horizontal annular sleeve structure, and sleeved in the longitudinal annular sleeve structure, the two auxiliary belts The upper part of the belt is limitedly sleeved on the seat back through the chest belt, so that the upper part of the two shoulder belts is limitedly sleeved on the seat back to prevent the auxiliary belt and the upper part of the shoulder belt from sliding off the seat back. Students can sit on a chair, put their two arms through the annular space between the back of the two shoulder straps and the auxiliary belt respectively, and then put them forward on the table to read and write, and set them on the back of the chair. The auxiliary belt and shoulder strap play a role in limiting and correcting the student's sitting posture, and limit the distance between the student and the book, preventing the student from being too close to the book, protecting the eyesight, and not affecting the student's reading. Writing sight. When students need to carry school bags to go home or to school, the horizontal and vertical annular sleeve structure composed of the lower channel belt, front channel belt and shoulder belt, and the upper limit structure composed of the chest belt are released by releasing the connection of each snap button. Disassemble, according to the structure of the backpack described in one aspect of the application, connect the lower channel belt, the front channel belt, the chest belt and the shoulder strap with the bag body, then the backpack described in one aspect of the application can be obtained, Realize the backpack to go to school or go to school.

In addition, all the sub-buttons are preferably the parts of the snaps with raised clips, and all the female snaps are preferably the parts of the snaps with the elastic card edge grooves, so, since the backpack solution as described in one aspect of the present application , all the sub snaps are set on the lower channel belt, the front channel belt and the chest belt, and all the female snap buttons are set on the bag body and the auxiliary belt, and the lower channel belt, the front channel belt and the chest belt are required according to the Students' needs for backpacks or sitting posture correction and vision protection devices are alternately connected to the bag body or auxiliary belt, so that the elastic card edge grooves on the bag body or auxiliary belt alternate with the lower channel belt, front channel belt and chest belt. The raised clips on the belt can be combined with disassembly and connection, which can reduce the wear of the elastic clip edge of the elastic clip edge groove and improve the service life of the snap combination structure, thereby improving the service life of the backpack and the sitting posture correction and vision protection device. On the other hand, assuming that the lower channel belt, front channel belt and chest belt adopt elastic card edge grooves, and the bag body or auxiliary belt adopts raised clips, no matter whether the student is carrying the backpack or the student is using the sitting posture correction and vision protection device, the elastic card edge grooves on the lower channel belt, front channel belt and chest belt are all disassembled and assembled, and they are continuously connected, which will increase the wear of the elastic card edge of the elastic card edge groove. This results in a reduction in the useful life of backpacks and sitting posture correction and vision protection devices.

Compared with the prior art, the beneficial effects of the present invention are:

The backpack and the sitting posture correction and vision protection device of the present invention can solve the problem that the backpack in the prior art has a single function and cannot improve the fit between the center of gravity of the bag and the student's back when the bag body is loaded with a heavy load, and improve the performance of the bag body when the bag body is carried. The stability of the bag reduces the pressure and the feeling of falling back on the students, and at the same time, it can conveniently and practically correct the students' sitting posture and protect the students' eyesight based on the students' actual study life and use needs. It can diversify the functions of the backpack, that is, when the bag is loaded with a heavy load, it can improve the fit between the center of gravity of the bag and the student's back, improve the stability of the bag when it is carried, and reduce the burden of the bag on the students. The feeling of pressure and the feeling of pulling back, improve the safety and comfort of use; at the same time, it can form a simple handbag according to the needs; in addition, it can also integrate the improved lower channel belt, front channel belt, chest belt and shoulder belt The device is connected and assembled to form a sitting posture correction and vision protection device, so as to conveniently and practically correct the students' sitting posture and protect the students' eyesight.

Description of drawings

FIG. 1 is a bottom view of the backpack of the first embodiment.

FIG. 2 is a bottom view of the bag body of the backpack according to the first embodiment.

FIG. 3 is a front view of the backpack of the first embodiment.

FIG. 4 is a front view of the bag body of the backpack according to the first embodiment.

FIG. 5 is a left side view of the backpack of the first embodiment.

FIG. 6 is a rear view of the backpack of the first embodiment.

FIG. 7 is a front view of the backpack of the second embodiment.

FIG. 8 is a side view of the backpack of the third embodiment.

FIG. 9 is a front view of the bag body and the front channel belt of the backpack according to the fourth embodiment.

FIG. 10 is a front view of the bag body and the front channel belt of the backpack of the fifth embodiment.

FIG. 11 is a front view of the bag body and the front channel belt of the backpack of the sixth embodiment.

FIG. 12 is a left side view of the sitting posture correction and vision protection device according to the seventh embodiment.

FIG. 13 is a front view of the sitting posture correction and vision protection device according to the seventh embodiment.

FIG. 14 is a rear view of the sitting posture correction and vision protection device according to the seventh embodiment.

FIG. 15 is a side view of each sub-snap of the school bag and the sitting posture correction and vision protection device according to the eighth embodiment.

FIG. 16 is a plan view of each sub-snap of the schoolbag and the sitting posture correction and vision protection device according to the eighth embodiment.

FIG. 17 is a plan view of each female snap button of the schoolbag and the sitting posture correction and vision protection device according to the eighth embodiment.

In the figure: 1 is the lower channel belt, 101 is the lower button, 102 is the lower channel, 2 is the front channel belt, 201 is the front button, 202 is the front channel, 203 is the lower sealing button, 204 is the zipper, 205 It is the upper sealing snap, 206 is the connecting snap, 3 is the chest strap, 301 is the middle snap, 4 is the shoulder strap, 41 is the auxiliary strap, 401 is the adjustment button, 402 is the middle button, and 403 is the outer button. Snaps, 404 is the inner female snap, 405 is the upper female snap, 5 is the bag body, 501 is the lower female snap, 502 is the front female snap, 503 is the cover, 6 is the hand strap, 7 is the fixed button Buckle, 8 is the seat back, 9 is a raised clip, 10 is an elastic clip edge groove, and 11 is an elastic clip edge.

The front and rear directions in the full text of the description respectively refer to the left and right directions in the above left views, and also refer to the up and down directions in the above lower views; the up and down directions in the full text of the description refer to the up and down directions in the above left, front and rear views respectively; The left and right directions in the full text refer to the left and right directions in the above-mentioned front view respectively, and because the backpack and the sitting posture correction and vision protection device of the present application are of left and right mirror-symmetrical structures, the left and right directions in the full text of the description can also refer to the above-mentioned rear views respectively. , the left and right directions of the lower view.

Detailed ways

The technical solutions of the present invention are further described below with reference to the accompanying drawings and through specific embodiments.

Example 1

A backpack comprising two rectangular strip-shaped lower channel straps 1, two rectangular strip-shaped front channel straps 2, a rectangular strip-shaped chest strap 3, two rectangular strip-shaped shoulder straps 4 and a bag-shaped The bag body 5; as shown in Figure 1, the bottom view of the backpack of the present embodiment, the two lower channel belts 1 are evenly arranged on the left and right sides of the bag body 5, the front end of the two lower channel belts 1 and The left and right sides of the rear end are respectively provided with at least two lower snap buttons 101 evenly distributed along the front-rear direction, and the front and rear ends of the bottom surface of the package body 5 are respectively provided with lower female snap buttons 501 matching the lower snap buttons 101. The lower channel belt 1 and the bottom surface of the package body 5 are respectively connected by the lower child snap buttons 101 and the lower female snap buttons 501, and the opening gap along the front-rear direction between the lower channel belt 1 and the bottom surface of the package body 5 constitutes the lower channel 102; FIG. 2 shows a bottom view of the bag body of the backpack of the present embodiment. As shown in FIG. 3, the front view of the backpack of the present embodiment is shown. The two front channel belts 2 are evenly distributed on the left and right sides of the front of the bag body 5. The front and rear ends of the two front channel belts 2 are on the left and right sides. The sides are respectively provided with at least two front sub-snap buttons 201 evenly distributed along the upper and lower directions, the upper and lower ends of the front side of the package body 5 are respectively provided with front female snap-buttons 502 matching the front sub-snap buttons 201, two front channel belts 2 and the front side of the bag body are respectively connected by the front child snap buttons 201 and the front female snap buttons 502, and the front channel 202 is formed by the opening gap between the front channel band 2 and the front side surface of the bag body 5 along the front and rear directions; Figure 4 Shown is a front view of the bag body of the backpack of the first embodiment. FIG. 5 shows the left side view of the backpack of the present embodiment, the two shoulder straps 4 pass through the lower channel 102 and the front channel 202 on the left side and the lower channel 102 and the front channel 202 on the right side in turn, and the shoulder straps One end and the other end of 4 are respectively connected at the rear of the bag body 5 by adjusting buckles 401; as shown in Figure 6, the rear view of the backpack of the present embodiment is Two neutron snaps 301 evenly distributed along the left and right directions, the two shoulder straps 4 in the middle of the rear side of the bag body 5 are respectively provided with middle female snaps 402 matching the upper child snaps, the left side of the chest strap 3 is The right side and the two shoulder straps 4 are respectively connected by the neutron snap 301 and the middle female snap 402; the front of the shoulder strap 4 is respectively provided with an auxiliary strap 41 located in a rectangular strip, and the auxiliary straps 41 are all located in the bag body 5. In the rear, the upper end of the auxiliary belt 41 is connected with the shoulder belt 4 above the chest belt 3, and the lower end of the auxiliary belt 41 is connected with the shoulder belt 4 below the adjustment buckle 401; The right side of the lower end of the belt 41 , the left side of the lower end of the shoulder strap 4 on the left side in front of the bag body 5 , and the right side of the lower end of the shoulder strap 4 on the right side in front of the bag body 5 are respectively provided with outer buttons matching the lower snap buttons 101 . Female snap 403; the right side of the lower end of the auxiliary belt 41 on the left side, the left side of the auxiliary belt 41 on the right side, the right side of the lower end of the shoulder strap 4 on the left side in front of the bag body 5, and the right side in front of the bag body 5 The left side of the lower end of the side shoulder straps 4 are respectively provided with inner female snaps 404 matching with the front sub snaps 201 ;

In the above-mentioned backpack of the present application, the lower channel belt 1 is connected with the bottom surface of the bag body 5 to form a lower channel 102; the front channel belt 2 is connected with the front side of the bag body 5 to form a front channel 202; the shoulder strap 4 is passed through the bottom of the bag body 5. After the lower channel 102 and the front channel 202 of the front part, the two ends of the shoulder strap 4 are connected to the rear of the bag body 5 through the adjustment buckle 401 to form a ring structure wrapped around the periphery of the bag body 5, so that the shoulder strap 4 constitutes a wrapping pocket. The overall structure of the bag body 5, after the user carries the bag body 5 through the shoulder strap 4, and then cooperates with the chest strap 3 that blocks the front side of the user's body, the bag body 5 with a large load can be completely wrapped around the user. The back of the bag can improve the fit between the center of gravity of the bag body 5 and the back of the user, improve the stability of the bag body when it is carried, and reduce the pressure of the bag body on the students and the feeling of falling back; the adjustment buckle 401 can adjust the shoulder strap 4. The circumference of the ring structure has been adapted to users of different sizes. The end of the chest strap 3 can be connected or disengaged with the shoulder strap 4 through the neutron snap 301 and the middle female snap 402, so as to facilitate the user to carry the bag body 5 or put down the bag body 5. For example, when the bag body 5 needs to be carried on the back, the user passes the arm through the annular structure of the shoulder strap 4 to carry the bag body 5 on his back, and then connects the two ends of the chest strap 3 with the shoulder strap 4, and when the bag body 5 needs to be put down , the user releases the connection between the neutron snap 301 at one end of the chest strap 3 and the middle female snap 402, then the user can come out from the restraint structure of the chest strap 3 to put down the backpack.

When the user passes the arm through the annular structure of the shoulder belt 4, the auxiliary belt 41 is used as a component of the shoulder belt 4, and the user's arm can extend between the auxiliary belt 41 and the bag body 5, and can also extend into the shoulder belt 4. Between the auxiliary belt 41 and the shoulder belt 4, when the user's arm extends between the auxiliary belt 41 and the shoulder belt 4, the auxiliary belt 41 can further fix the user's arm. The belt 41 is an elastic belt, which can improve its fixing effect on the arm and improve the stability of use. In addition, the auxiliary belt 41 can also play the role of a spacer buffer between the shoulders and back of the user, the arms and the bag body 5. In this case, the auxiliary belt 41 is preferably a tubular belt with a flexible filling layer such as a sponge layer inside, so that the Improve cushioning and comfort. It should be noted that the upper end of the auxiliary belt 41 is preferably fixedly connected to the shoulder belt 4 through a structure such as a suture; the lower end of the auxiliary belt 41 and the shoulder belt 4 can be fixedly connected such as through a suture. The annular structure of the shoulder strap 4 is taken out from the lower channel 102 and the front channel 202, or if the annular structure of the shoulder strap 4 needs to be installed in the lower channel 102 and the front channel 202, the lower channel belt 1 and the front channel belt 2 can be opened by opening the The left or right side is connected with the bag body 5, and then the annular structure of the shoulder strap 4 is taken off as a whole from the periphery of the bag body 5; the lower end of the auxiliary belt 41 and the shoulder strap 4 can also be active connections such as through auxiliary snaps At this time, if the annular structure of the shoulder strap 4 needs to be taken out from the lower channel 102 and the front channel 202, or the annular structure of the shoulder strap 4 needs to be installed into the lower channel 102 and the front channel 202, in addition to the aforementioned opening In addition to the connection between the left or right side of the lower channel belt 1 and the front channel belt 2 and the bag body 5, the annular structure of the shoulder belt 4 can also be opened by opening the auxiliary snap button and then opening the adjustment button 401, and then Pull out the shoulder strap 4 from the lower channel 102 and the front channel 202, or pass the shoulder strap 4 through the lower channel 102 and the front channel 202, connect the shoulder strap 4 and the auxiliary strap 41 through the auxiliary snap button, and adjust the buckle 401 connects both ends of the shoulder strap 4 .

Embodiment 2

On the basis of the backpack described in Embodiment 1, in the backpack of this embodiment, a rectangular strip-shaped hand strap 6 is provided in the middle of the top of the bag body 5 , and the two ends of the hand strap 6 are connected to the bag body 5 . top fixed connection. FIG. 7 shows a front view of the backpack of this embodiment. At this time, when the shoulder strap 4 is not needed and the bag body 5 only needs to be used as a handbag, each channel strap and the shoulder strap 4 can be removed through each snap button, and the bag body 5 can be extracted only through the hand strap 6 That's it.

Embodiment 3

On the basis of the backpack described in Embodiment 1 or Embodiment 2, in the backpack of this embodiment, the inner sides of the shoulder straps 4 at the front and bottom of the bag body 5 and the outer sides of the front and lower parts of the bag body 5 can be further A matching fixed snap 7 is provided on the side. FIG. 8 is a side view of the backpack of this embodiment. At this time, when the user is carrying the backpack, firstly, the shoulder strap 4 and the bag body 5 are fixedly connected by the fixed snap button 7, so that the shoulder strap 4 can be prevented from moving along the length direction of the shoulder strap 4 in each channel.

Specifically, for example, the fixed snap 7 is arranged on the inner side of the shoulder strap 4 and the outer side of the bag body 5 in the lower channel 102 and the front channel 202 , or the fixed snap 7 is arranged on the inner side of the shoulder strap 4 at the bottom and top of the bag body 5 . And the outer side of the bag body 5, the fixed snaps 7 can also be arranged in the lower channel 102 and the front channel 202, the inner side of the shoulder strap 4 at the bottom and the top of the bag body 5 and the outer side of the bag body 5 at the same time. The number and distribution of the fixed snaps 7 can be set as required, for example, the number of the fixed snaps 7 at each location is four groups, and each group of the fixed snaps 7 is evenly distributed into a rectangle.

Embodiment 4

On the basis of the backpack described in any one of Embodiments 1 to 3, in the backpack of this embodiment, the lower portion of the front channel belt 2 and the bag body 5 may be further connected by a lower sealing snap 203 . FIG. 9 is a front view of the bag body and the front channel belt of the backpack of the present embodiment. In this way, since the lower part of the front channel belt 2 and the bag body 5 can be connected by the lower sealing snap 203 to form a structure where the lower part is partially sealed, the front channel belt 2 may not be removed when the shoulder belt 4 is not required, and the In the front channel 202 formed by the connection between the front channel belt 2 and the front side of the bag body 5, items such as water cups, umbrellas, etc. are placed, so that the front channel 202 closed at the lower end functions as a storage bag. At this time, the number of the front child snap buttons 201 and the front female snap buttons 502 can be increased from top to bottom as required, so as to meet the requirement of using the front channel 202 as a storage bag.

Embodiment 5

On the basis of the backpack described in the fourth embodiment, in the backpack of this embodiment, the left side, the lower side and the right side of the front channel belt 2 and the front side of the bag body 5 can be further arranged. There is a matching zipper 204. FIG. 10 is a front view of the bag body and the front channel belt of the backpack of the present embodiment. In this way, since the lower part of the front channel belt 2 and the bag body 5 can be connected by the zipper 204 to form a structure that the lower part is completely sealed, when the shoulder belt 4 is not required, the front channel belt 2 can be not removed, and the front channel belt 2 can be In the front channel 202 formed by the connection between the belt 2 and the front side of the bag body 5, items such as water cups and umbrellas can be placed, and items such as pens and rulers can also be placed, so that the closed front channel 202 at the lower end functions as a storage bag.

Embodiment 6

In Embodiment 4 or Embodiment 5, FIG. 11 shows the front view of the bag body and the front channel belt of this embodiment. Further, the front side of the bag body 5 is provided with a front channel belt 2 located in front of it. A rectangular cover sheet 503 is formed, and the upper side of the cover sheet 503 is connected to the package body 5 above the front channel belt 2 . Taking the fourth embodiment as an example, at this time, the items placed in the front channel 202 can be covered by the cover sheet 503 covering the upper and front sides of the front channel belt 2, that is, also covering the upper and front sides of the front channel 202. function to protect the item to a certain extent.

Further, the lower part of the cover sheet 503 is connected with the upper part of the front channel band 2 through the upper sealing snap 205 . By connecting with the front channel belt 2 through the cover sheet 503, the upper part of the front channel 202 is sealed to prevent the items placed in the front channel 202 from falling.

Further, the lower part of the cover sheet 503 is folded upward and connected with the package body 5 above the front channel band 2 through the connection snap 206 . In this way, when there is no need to place items in the front channel 202, especially when the shoulder strap 4 needs to be placed in the front channel 202, the lower part of the cover sheet 503 can be folded upwards and passed through the bag body 5 above the front channel belt 2 The connection snap 206 is connected to open the upper end of the front channel 202, and at this time, the lower sealing snap 203 of the lower part of the front channel belt 2 is opened. If it is the structure described in Embodiment 5, the zipper 204 needs to be opened, then The lower end of the front channel 202 enables the shoulder straps 4 to pass through the front channel 202 as required.

Embodiment 7

A sitting posture correction and vision protection device, including the lower channel belt 1, the front channel belt 2, the chest belt 3, the shoulder belt 4 and the auxiliary belt 41 in the backpack as described in any one of Embodiments 1 to 6; 12 shows the left side view of the sitting posture correction and vision protection device of the present embodiment; The outer female snaps 403 are connected; the front child snaps 201 at both ends of one front channel band 2 along its length direction are respectively connected with the inner female snaps 404 on the two auxiliary bands 41, and the other front channel band 2 along its length direction The front child snap buttons 201 at the two ends of the two shoulder straps 4 are respectively connected with the inner female snap buttons 404 of the two shoulder straps 4; Figure 13 shows the front view of the sitting posture correction and vision protection device of this embodiment; the chest strap 3 is along its length direction. The neutron snaps 301 at both ends of the two auxiliary belts 41 are respectively connected with the upper female snaps 405 on the two auxiliary belts 41 . FIG. 14 is a rear view of the sitting posture correction and vision protection device of the present embodiment.

In the practical application of the sitting posture correction and vision protection device of this embodiment, after students carry the backpack as described in any one of Embodiment 1 to Embodiment 6 to school or home, press the lower part of the lower channel belt 1 The buckle 101 is disconnected from the lower female snap 501 of the package body 5, so that the lower channel band 1 is separated from the package body 5; the front child snap 201 of the front channel band 2 and the front female snap 502 of the package body 5 are released. The front channel belt 2 is separated from the bag body 5, and the neutron snap 301 of the chest strap 3 is disconnected from the middle female snap 402 of the bag body 5, so that the chest strap 3 is separated from the bag body 5; At the same time, remove the shoulder strap 4 , and then connect the above-mentioned disassembled lower channel belt 1, front channel belt 2, chest belt 3 and shoulder belt 4 according to the structure of the sitting posture correction and vision protection device described in the present embodiment to form the above-mentioned sitting posture correction and vision protection device. , it can be seen that the two lower channel belts 1 and the two front channel belts 2 are connected to the lower part of the ring formed by the front part of the shoulder belt 4 and the auxiliary belt 41 at intervals, then the two lower channel belts 1 and the two front channel belts 2. The horizontal annular sleeve structure is formed at intervals in turn, the front part of the shoulder strap 4 and the auxiliary belt 41 constitute two longitudinal annular sleeve structures, and the upper part of the longitudinal annular sleeve structure, the chest belt connected between the two auxiliary belts 41; 3 constitutes the upper limit structure, then the seat back 8 of the chair can be inserted through the horizontal annular sleeve structure, and set in the longitudinal annular sleeve structure, and the upper part of the two auxiliary belts 41 is limited by the chest belt 3. Set on the seat back 8, so that the upper limit sleeves of the two shoulder straps 4 are set on the seat back 8 to prevent the auxiliary belt 41 and the upper part of the shoulder strap 4 from sliding off the seat back 8. At this time, students can sit On the chair, after passing the two arms through the annular space between the rear of the two shoulder straps 4 and the auxiliary belt 41 respectively, extend them forward and place them on the table to read and write, while the arm sleeves on the back of the chair 8 The auxiliary belt 41 and the shoulder belt 4 play a role in limiting and correcting the student's sitting posture, and restricting the distance between the student and the book, preventing the student from getting too close to the book, protecting the eyesight, and not affecting the student The sight of reading and writing.

It should be noted that the shoulder strap 4 is used as the force end for students' sitting posture correction and reading and writing distance adjustment and maintenance, which can better ensure its force strength and ensure the effect of correction and adjustment maintenance. At this time, students can adjust the adjustment buckle 401. The size of the annular structure of the shoulder strap 4 is suitable for the use of students of different statures, and is suitable for the needs of sitting posture correction and reading and writing distance adjustment and maintenance in different situations. In contrast, if an elastic band is set on the back side of the shoulder strap 4, and then the student's arm is passed through the space formed by the elastic band and the shoulder strap 4, the elastic band is used as the subject of the student's sitting posture correction and reading and writing distance adjustment. On the force side, the space for the upper body activities of the students can be changed flexibly, that is, the adjustment of the sitting posture and the distance between reading and writing is indeed more flexible and convenient, but the strength of the force cannot meet the needs of guaranteeing the correction and adjustment and maintaining the effect. Then, when the students need to carry their schoolbags to go home or go to school, remove the horizontal and vertical annular sleeve structure composed of the lower channel belt 1, the front channel belt 2 and the shoulder belt 4, and the upper limit structure composed of the chest belt 3 by releasing the The connection of each snap button is disassembled, and then according to the structure of the backpack described in one aspect of the application, the lower channel belt 1, the front channel belt 2, the chest belt 3 and the shoulder belt 4 are connected and assembled with the bag body 5, then The backpack as described in any one of Embodiment 1 to Embodiment 6 can be obtained, so that the backpack body 5 can be carried to go to or from school.

Embodiment 8

On the basis of the seventh embodiment, the sitting posture correction and vision protection device of the present embodiment, and the above-mentioned backpack on which it is based, may further include the lower snap 101 , the front snap 201 and the neutron snap 301 . The snap portion with the raised head 9, the outer female snap 403, the inner female snap 404, the upper female snap 405, the lower female snap 501, the front female snap 502 and the middle female snap 402 are all elastic. The snap portion of the card edge groove 10 . FIG. 15 is a side view of a portion of a snap button with a raised clip of the sitting posture correction and vision protection device of the present embodiment. FIG. 16 is a top view of the part of the snap button with the protruding clip of the sitting posture correction and vision protection device of the present embodiment. FIG. 17 is a top view of the snap portion with the elastic card edge groove of the sitting posture correction and vision protection device of the present embodiment.

It should be noted that, as described in the backpack solution described in any one of Embodiments 1 to 6, all the sub-snap buttons are arranged on the lower channel belt 1, the front channel belt 2 and the chest belt 3, and all The female snaps are all arranged on the bag body 5 and the auxiliary belt 41, while the lower channel belt 1, the front channel belt 2 and the chest belt 3 are required to be alternately and The body 5 or the auxiliary belt 41 is connected, so that the elastic card edge grooves 10 on the bag body 5 or the auxiliary belt 41 are alternately matched with the raised clips 9 on the lower channel belt 1, the front channel belt 2 and the chest belt 3 Disassembly and connection can reduce the wear and tear of the elastic card edge 11 of the elastic card edge groove 10, and improve the service life of the snap combination structure, thereby improving the service life of the backpack and the sitting posture correction and vision protection device. The channel belt 1, the front channel belt 2 and the chest belt 3 adopt the elastic card edge groove 10, and the bag body 5 or the auxiliary belt 41 adopts the raised card head 9, whether the student is carrying the backpack or the student is using the sitting position. Correction and vision protection device, the elastic card edge grooves 10 on the lower channel belt 1, the front channel belt 2 and the chest belt 3 are all disassembled and assembled, and continue to be in the connected state, then the elasticity of the elastic card edge groove 10 is increased. The wear of the card edge 11 can lead to a reduction in the service life of the backpack and the sitting posture correction and vision protection device.

In order to improve the comfort and breathability of the sitting posture correction and vision protection device of this embodiment, the shoulder strap 4 and the auxiliary strap 41 can be straps with ventilation holes, such as knitted mesh straps. In addition, the adjustment buckle 401 may be a sun-shaped structure, and the shoulder straps 4 pass through the upper and lower spaces of the sun-shaped structure in sequence to form a structure that can be stretched to adjust the size.

The applicant declares that the above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should Changes or substitutions that can be easily conceived within the technical scope all fall within the protection scope and disclosure scope of the present invention.

Claims (10)

1. A backpack comprises two rectangular strip-shaped lower channel belts (1), two rectangular strip-shaped front channel belts (2), a rectangular strip-shaped chest belt (3), two rectangular strip-shaped shoulder belts (4) and a bag-shaped bag body (5); the bag is characterized in that the two lower channel belts (1) are uniformly distributed on the left side and the right side below the bag body (5), the left side and the right side of the front end and the rear end of the two lower channel belts (1) are respectively provided with at least two lower sub snap fasteners (101) uniformly distributed in the front-back direction, the front end and the rear end of the bottom surface of the bag body (5) are respectively provided with a lower female snap fastener (501) matched with the lower sub snap fasteners (101), the bottom surfaces of the two lower channel belts (1) and the bag body (5) are respectively connected through the lower sub snap fasteners (101) and the lower female snap fasteners (501), and an opening gap between the lower channel belts (1) and the bottom surface of the bag body (5) along the front-back direction forms a lower channel (102; the two front channel belts (2) are uniformly distributed on the left side and the right side in front of the bag body (5), the left side and the right side of the front end and the rear end of the two front channel belts (2) are respectively provided with at least two front sub-snap fasteners (201) which are uniformly distributed along the vertical direction, the upper end and the lower end of the front side surface of the bag body (5) are respectively provided with a front female snap fastener (502) which is matched with the front sub-snap fasteners (201), the two front channel belts (2) are respectively connected with the front side surface of the bag body through the front sub-snap fasteners (201) and the front female snap fasteners (502), and an opening gap between the front channel belts (2) and the front side surface of the bag body (5) along the front-; the two shoulder straps (4) respectively pass through the left lower channel (102) and the left front channel (202) and the right lower channel (102) and the right front channel (202) in sequence, and one end and the other end of each shoulder strap (4) are respectively connected with the rear part of the bag body (5) through an adjusting buckle (401); the upper end and the lower end of the left side and the right side of the chest strap (3) are respectively provided with at least two neutron snap fasteners (301) which are uniformly distributed along the left-right direction, the two shoulder straps (4) at the middle part of the rear side of the bag body (5) are respectively provided with a middle female snap fastener (402) which is matched with the upper neutron snap fastener, and the left side and the right side of the chest strap (3) are respectively connected with the two shoulder straps (4) through the neutron snap fasteners (301) and the middle female snap fasteners (402); the front of the shoulder strap (4) is respectively provided with an auxiliary strap (41) which is positioned in a rectangular strip shape, the auxiliary straps (41) are all positioned at the rear of the bag body (5), the upper end of the auxiliary strap (41) is connected with the shoulder strap (4) above the chest strap (3), and the lower end of the auxiliary strap (41) is connected with the shoulder strap (4) below the adjusting buckle (401); outer female snap fasteners (403) matched with the lower male snap fasteners (101) are respectively arranged on the left side of the lower end of the left auxiliary belt (41), the right side of the lower end of the right auxiliary belt (41), the left side of the lower end of the left shoulder belt (4) in front of the bag body (5) and the right side of the lower end of the right shoulder belt (4) in front of the bag body (5); inner female snap fasteners (404) matched with the front male snap fasteners (201) are respectively arranged on the right side of the lower end of the left auxiliary belt (41), the left side of the right auxiliary belt (41), the right side of the lower end of the left shoulder belt (4) in front of the bag body (5) and the left side of the lower end of the right shoulder belt (4) in front of the bag body (5);

the upper ends of the auxiliary belts (41) are respectively provided with an upper female snap fastener (405) matched with the neutron snap fastener (301).

2. The backpack as claimed in claim 1, wherein a rectangular strip-shaped hand strap (6) is arranged in the middle of the top of the backpack body (5), and both ends of the hand strap (6) are fixedly connected with the top of the backpack body (5).

3. A backpack according to claim 1, characterized in that the inner side of the shoulder straps (4) in front of and below the body (5) and the outer side of the front and lower part of the body (5) are provided with matching fixing snap fasteners (7).

4. A backpack according to claim 1, wherein the lower part of the front access strap (2) is connected to the pack body (5) by means of a lower closure snap fastener (203).

5. A backpack according to claim 4, wherein matching zippers (204) are provided on the left, lower and right side edges of the front channel strap (2) and on the front side of the pack (5).

6. A backpack according to claim 4 or 5, wherein the front side of the body (5) is provided with a rectangular cover sheet (503) in front of the front walkway belt (2), the upper side edge of the cover sheet (503) being connected to the body (5) above the front walkway belt (2).

7. A backpack according to claim 6, wherein the lower part of the flap (503) is connected to the upper part of the front channel strip (2) by means of an upper closure snap fastener (205).

8. A backpack according to claim 7, wherein the lower part of the flap (503) is folded upwards and connected to the body (5) above the front access strap (2) by means of a connecting snap (206).

9. A sitting posture correcting and eyesight protecting device, comprising a lower channel strap (1), a front channel strap (2), a chest strap (3), shoulder straps (4) and auxiliary straps (41) in the backpack according to any one of claims 1-8; it is characterized in that the lower snap buttons (101) at the two ends of each lower channel belt (1) along the length direction are respectively connected with the outer female snap buttons (403) of one auxiliary belt (41) and the adjacent shoulder belt (4); front sub-snap fasteners (201) at two ends of one front channel belt (2) along the length direction are respectively connected with inner female snap fasteners (404) on two auxiliary belts (41), and front sub-snap fasteners (201) at two ends of the other front channel belt (2) along the length direction are respectively connected with inner female snap fasteners (404) of two shoulder belts (4); the neutron snap fasteners (301) at the two ends of the chest belt (3) along the length direction are respectively connected with the upper female snap fasteners (405) on the two auxiliary belts (41).

10. The sitting posture correcting and eyesight protecting device as claimed in claim 9, wherein the lower male snap (101), the front male snap (201) and the middle male snap (301) are all snap parts having a convex clip (9), and the outer female snap (403), the inner female snap (404), the upper female snap (405), the lower female snap (501), the front female snap (502) and the middle female snap (402) are all snap parts having an elastic clipping edge groove (10).

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