CN213370412U

CN213370412U - Pull rod schoolbag and pull rod mechanism

Info

Publication number: CN213370412U
Application number: CN202021191873.2U
Authority: CN
Inventors: 何梦瑄
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-06-23
Filing date: 2020-06-23
Publication date: 2021-06-08
Anticipated expiration: 2030-06-23

Abstract

The utility model firstly provides a pull rod mechanism, which comprises a base and a pull rod component arranged at the front end of the base; the pull rod assembly comprises two pull rod units which are parallel to each other, each pull rod unit comprises a lower pull rod and an upper pull rod, and a rotating mechanism which enables the upper pull rod to rotate relative to the lower pull rod is arranged between the lower pull rod and the upper pull rod; the lower side face of the upper pull rod after rotating to the horizontal position relative to the lower pull rod is provided with an embedded groove, a supporting leg is arranged in the embedded groove, and the supporting leg is far away from the lower pull rod, is rotatably matched with the embedded groove and can rotate relative to the upper pull rod. The utility model discloses still design two kinds of pull rod schoolbag according to pull rod mechanism, the student waits at bus station or when needing the rest on the way at the walking, and this pull rod schoolbag just can be regarded as the stool of rest, very convenient and practical.

Description

Pull rod schoolbag and pull rod mechanism

Technical Field

The utility model relates to a schoolbag, specific be a pull rod mechanism and pull rod schoolbag.

Background

The existing draw-bar schoolbag generally comprises two parts, namely a schoolbag and a draw-bar mechanism, wherein the draw-bar schoolbag and the draw-bar mechanism are fixedly arranged into a whole and cannot be disassembled, the schoolbag and the draw-bar mechanism of the draw-bar schoolbag can be disassembled, and the draw-bar mechanism is adopted when the schoolbag bears a large load, for example, a draw-bar schoolbag for students disclosed in the Chinese patent with the publication number of CN 210329742U.

Along with urban development, students often need to take public transport means or walk for a long distance to reach schools, and if the students need to have a rest when waiting at a bus station or walking, the students often have no corresponding urban corollary equipment such as stools for rest use, so that the burden of the students is increased.

Disclosure of Invention

In view of this, the present invention provides a pull rod schoolbag and a pull rod mechanism, which not only can reduce the load, but also can be transformed into a stool for rest.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model firstly provides a pull rod mechanism, which comprises a base and a pull rod component arranged at the front end of the base; the pull rod assembly comprises two pull rod units which are parallel to each other, each pull rod unit comprises a lower pull rod fixedly connected with the base and an upper pull rod sleeved in the lower pull rod in a sliding fit manner, and a handle is arranged between the upper ends of the two upper pull rods and connected with the upper ends of the two upper pull rods;

a rotating mechanism which enables the upper pull rod to rotate relative to the lower pull rod when the upper pull rod extends upwards to the longest limit position relative to the lower pull rod is arranged between the lower pull rod and the upper pull rod;

go up the pull rod for be equipped with the embedded groove on the downside behind the pull rod rotation level position, be equipped with the supporting leg in the embedded groove, the supporting leg is kept away from the one end of pull rod down with rotate between the embedded groove and cooperate and can for go up the pull rod rotation, the length of supporting leg equals when the pull rod rotates level position and the distance between the ground.

Further, be equipped with central through-hole in the lower link, the upper end of central through-hole is equipped with spacing section, the geometric dimensions of central through-hole is greater than the geometric dimensions of going up the pull rod, the geometric dimensions of spacing section with go up the pull rod and match.

Furthermore, a limiting block which is matched with the central through hole in a sliding manner and is in limiting fit with the limiting section is arranged in the central through hole, and a yielding opening which yields and limits the rotating angle of the upper pull rod when the upper pull rod rotates relative to the lower pull rod is arranged at the upper end of the limiting section;

the upper end of the limiting block is provided with a connecting section, a connecting rotating shaft is arranged between the connecting section and the upper pull rod, and the connecting section and the upper pull rod are in rotating fit with the connecting rotating shaft; and work as the stopper with during spacing cooperation of spacing section, it is located to connect the pivot let the position department that the mouth corresponds, just the axis distance of connecting the pivot let the distance of position mouth lower extreme with the axis distance of connecting the pivot is in the distance of the downside behind the pull rod rotation level position equals.

Furthermore, a supporting component for supporting the buttocks is arranged between the two upper pull rods.

Further, the support component is made of hard board or soft cloth.

Furthermore, two one sides that the lower pull rod is in opposite directions are equipped with respectively and are used for stepping down the groove of stepping down of supporting component, the groove of stepping down with the center through-hole communicates with each other.

Furthermore, one end of the lower part of the base, which is close to the lower pull rod, is provided with a roller.

Furthermore, supporting legs are arranged on one side, opposite to the side provided with the roller, of the lower portion of the base.

Furthermore, the back of the schoolbag is provided with at least one mounting belt at intervals for being sleeved on the two lower pull rods.

The utility model also provides a pull rod schoolbag, including schoolbag and pull rod mechanism, the back interval of schoolbag is equipped with at least one and is used for the cover two installation area on the lower link.

The beneficial effects of the utility model reside in that:

the utility model discloses a draw-bar mechanism is in through the lower link with base fixed connection and sliding fit suit last pull rod in the lower link is equipped with the handle between the upper end of last pull rod and links to each other, is equipped with between lower link and the last pull rod go up the pull rod for the lower link upwards makes when stretching out longest extreme position go up the pull rod for the rotatable slewing mechanism of lower link, when upwards pulling stopper and spacing cooperation through the handle with last pull rod, go up the pull rod and can rotate for the lower link, and the supporting leg in the embedded groove can rotate perpendicular upper link position and be used for supporting this moment to draw-bar mechanism can warp and supply the user to have a rest for sitting the bench to have the advantage that the function is nimble, simple structure is compact and be convenient for the installation and carry.

The utility model discloses a pull rod schoolbag, through the installation belt which is arranged at the back of the schoolbag at intervals and is used for being sleeved on the lower pull rod, thereby the schoolbag and the pull rod mechanism can be disassembled, and the use is convenient and flexible; and draw bar mechanism can be out of shape to the stool when needs and use, and when the student waited the bus at bus station or needed the rest on the way at the walking, this pull rod schoolbag just can be regarded as the stool of rest, and is very convenient and practical.

Drawings

In order to make the purpose, technical scheme and beneficial effect of the utility model clearer, the utility model provides a following figure explains:

FIG. 1 is a schematic view of a pull-rod schoolbag structure;

FIG. 2 is an enlarged view of a portion of the upper tie rod not pulled to the limit position A;

FIG. 3 is a left side view of FIG. 1;

FIG. 4 is a schematic view of the upper link being pulled to an extreme position;

FIG. 5 is an enlarged partial view of the upper link B when pulled to the limit position;

FIG. 6 is a schematic view of a first structure of the schoolbag with pull rods;

fig. 7 is a second structure diagram of the pull-rod schoolbag.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

As shown in fig. 1, the structure of the pull-rod schoolbag of the present invention is schematically shown, and the pull-rod schoolbag of this embodiment includes a schoolbag 15 and a pull rod mechanism. The pull rod mechanism of the embodiment comprises a base 1 and a pull rod assembly arranged on the base 1; the pull rod assembly comprises two pull rod units which are parallel to each other, each pull rod unit comprises a lower pull rod 2 fixedly connected with the base 1 and an upper pull rod 3 sleeved in the lower pull rod 2 in a sliding fit mode, and a handle 4 is arranged between the upper ends of the upper pull rods 3 and connected with each other.

A rotating mechanism which can enable the upper pull rod 3 to rotate relative to the lower pull rod 2 when the upper pull rod 3 extends upwards to the longest limit position relative to the lower pull rod 2 is arranged between the lower pull rod 2 and the upper pull rod 3. Go up pull rod 3 for be equipped with embedded groove 5 on the downside behind the lower pull rod 2 rotates the horizontal position, be equipped with supporting leg 6 in the embedded groove 5, supporting leg 6 is kept away from the one end of lower pull rod 2 with rotate between the embedded groove 5 and cooperate and can for go up pull rod 3 rotates, the length of supporting leg 6 equals the distance between 2 when rotating the horizontal position of lower pull rod and the ground.

At least one mounting belt 18 for being sleeved on the two lower pull rods 2 is arranged on the back of the schoolbag 15 at intervals. When the upper pull rod 3 is pulled upwards to the limit section 8 and the limit block 9 for limiting and matching, the upper pull rod 3 can rotate 90 degrees clockwise along the back of the schoolbag 15 through the rotating mechanism between the upper pull rod 3 and the abdicating groove 14, then the supporting legs 6 embedded in the grooves 5 are rotated to be vertical to the ground through the rotating mechanism, and at the moment, the simple stool for the students to rest is formed.

Further, be equipped with central through-hole 7 in the lower link 2, the upper end of central through-hole 7 is equipped with spacing section 8, the geometric dimension of central through-hole 7 is greater than go up the geometric dimension of pull rod 3, the geometric dimension of spacing section 8 with go up pull rod 3 matches. Be equipped with rather than sliding fit in the central through-hole 7 and with spacing complex stopper 9 of spacing section 8, the upper end of spacing section 8 is equipped with on the pull rod 3 for lower link 2 rotate the time yield and spacing go up pull rod 3 turned angle's mouth 10 of stepping down. A connecting section 11 is arranged at the upper end of the limiting block 9, a connecting rotating shaft 12 is arranged between the connecting section 11 and the upper pull rod 3, and the connecting section 11 and the upper pull rod 3 are in rotating fit with the connecting rotating shaft 13; and work as the stopper 9 with during the spacing cooperation of spacing section 8, connect pivot 12 and be located let the position department that position mouth 10 corresponds, just connect the axis distance of pivot 12 let the distance of position mouth 10 lower extreme with the axis distance of connecting pivot 12 is in the distance of the downside after the pull-up rod 3 rotates the horizontal position equals.

Preferably, two be equipped with the supporting component 13 that is used for supporting the buttock between the upper link 3, supporting component 13 adopts hard board or soft cloth to make, two one side in opposite directions of lower link 2 is equipped with respectively and is used for stepping down supporting component's groove 14 of stepping down, step down groove 14 with central through-hole 7 communicates with each other, the below of base is close to the one end of lower link 2 is equipped with gyro wheel 16, the below of base 1 is equipped with supporting legs 17 with the relative one side that is equipped with gyro wheel 16, the back interval of schoolbag is equipped with at least one and is used for the cover two mounting band 18 on the lower link 2.

The pull rod mechanism can be modified in various ways, such as: fig. 6 shows that a pull rod schoolbag suitable for senior students is provided, which comprises a schoolbag 15 and a pull rod mechanism, wherein at least one mounting belt 18 used for being sleeved on two lower pull rods 2 is arranged on the back surface of the schoolbag 15 at intervals. When the upper pull rod 3 is pulled upwards to the limit section 8 and the limit block 9 for limiting and matching, the upper pull rod 3 can rotate 90 degrees relative to the lower pull rod 2 towards one side of the schoolbag 15, then the support legs 6 embedded in the grooves 5 are rotated to be perpendicular to the ground through the rotating mechanism, a simple stool which can be used for students to rest is formed, and the schoolbag 15 is hidden below the stool.

As shown in fig. 7, a pull-rod schoolbag suitable for the lower-grade students is also provided, which comprises a schoolbag 15 and a pull-rod mechanism, wherein at least one mounting belt 18 for being sleeved on two lower pull rods 2 is arranged on the back surface of the schoolbag 15 at intervals. When the upper pull rod 3 is pulled upwards to the limit section 8 and the limit block 9 for limiting and matching, the upper pull rod 3 can rotate 90 degrees relative to one side of the lower pull rod 2 opposite to the side where the schoolbag 15 is located, then the support legs 6 embedded in the grooves 5 are rotated to be perpendicular to the ground through the rotating mechanism, a simple stool which can be used for students to rest is formed, and the schoolbag 15 is located on one side of the stool so as to be convenient for taking and placing articles.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A pull rod mechanism comprises a base (1) and a pull rod assembly arranged at the front end of the base (1); the pull rod assembly comprises two pull rod units which are parallel to each other, each pull rod unit comprises a lower pull rod (2) fixedly connected with the base (1) and an upper pull rod (3) which is sleeved in the lower pull rod (2) in a sliding fit manner, and is characterized in that a handle (4) is arranged between the upper ends of the upper pull rods (3) and connected with each other:

a rotating mechanism which enables the upper pull rod (3) to rotate relative to the lower pull rod (2) when the upper pull rod (3) extends upwards to the longest limit position relative to the lower pull rod (2) is arranged between the lower pull rod (2) and the upper pull rod (3);

go up pull rod (3) be for be equipped with embedded groove (5) on the downside behind the horizontal position is rotated to lower pull rod (2), be equipped with supporting leg (6) in embedded groove (5), supporting leg (6) are kept away from the one end of lower pull rod (2) with rotate between embedded groove (5) the cooperation and can for go up pull rod (3) and rotate, the length of supporting leg (6) equals distance between when lower pull rod (2) rotates horizontal position and the ground.

2. The drawbar mechanism according to claim 1, wherein: be equipped with central through-hole (7) in lower pull rod (2), the upper end of central through-hole (7) is equipped with spacing section (8), the geometric dimensions of central through-hole (7) are greater than the geometric dimensions of last pull rod (3), the geometric dimensions of spacing section (8) with go up pull rod (3) and match.

3. The drawbar mechanism according to claim 2, wherein: a limiting block (9) which is matched with the central through hole (7) in a sliding manner and is in limiting fit with the limiting section (8) is arranged in the central through hole (7), and a yielding port (10) which yields when the upper pull rod (3) rotates relative to the lower pull rod (2) and limits the rotating angle of the upper pull rod (3) is arranged at the upper end of the limiting section (8);

a connecting section (11) is arranged at the upper end of the limiting block (9), a connecting rotating shaft (12) is arranged between the connecting section (11) and the upper pull rod (3), and the connecting section (11) and the upper pull rod (3) are in rotating fit with the connecting rotating shaft (12); and work as stopper (9) with during spacing cooperation of spacing section (8), connect pivot (12) and be located let the position department that position mouth (10) corresponds, just the axis distance of connecting pivot (12) let the distance of position mouth (10) lower extreme with the axis distance of connecting pivot (12) is in go up pull rod (3) and rotate the distance of the downside behind the horizontal position and equal.

4. The drawbar mechanism according to claim 2, wherein: a supporting component (13) for supporting the buttocks is arranged between the two upper pull rods (3).

5. The drawbar mechanism according to claim 4, wherein: the supporting component (13) is made of hard board or soft cloth.

6. The drawbar mechanism according to claim 4, wherein: two one side that lower pull rod (2) are in opposite directions is equipped with respectively and is used for stepping down groove (14) of stepping down of supporting component (13), step down groove (14) with central through-hole (7) communicate with each other.

7. The drawbar mechanism according to claim 1, wherein: and a roller (16) is arranged at one end, close to the lower pull rod (2), below the base (1).

8. The drawbar mechanism according to claim 7, wherein: supporting legs (17) are arranged on one side of the lower portion of the base (1) opposite to the side where the rollers (16) are arranged.

9. A pull rod schoolbag is characterized in that: comprises a schoolbag (15) and a pull rod mechanism as claimed in any one of claims 1-6, wherein the back surface of the schoolbag (15) is provided with at least one mounting belt (18) at intervals for being sleeved on the two lower pull rods (2).