CN210930103U

CN210930103U - Braces telescopic pull rod knapsack

Info

Publication number: CN210930103U
Application number: CN201922198433.3U
Authority: CN
Inventors: 赖延仲
Original assignee: Quanzhou Hengliang Travel Goods Co ltd
Current assignee: Quanzhou Hengliang Travel Goods Co ltd
Priority date: 2019-12-10
Filing date: 2019-12-10
Publication date: 2020-07-07
Anticipated expiration: 2029-12-10

Abstract

The utility model discloses a braces telescopic pull rod knapsack, including knapsack body and braces, the inside fixedly connected with receiver of knapsack body, the inside of receiver is rotated and is connected with the center pin, the side table wall fixedly connected with wind spring of center pin, the outside winding of wind spring are connected with the telescopic band, telescopic band and braces fixed connection, the spacing portion of outward appearance wall fixedly connected with of knapsack body, spacing portion includes upper cover and lower cover, upper cover and lower cover rotate to be connected. The utility model discloses in, the lower extreme of braces has set up the telescopic band, and the inside of knapsack body has set up the receiver, and the inside of receiver has set up the center pin, has set up the wind spring on the center pin, and the wind spring is connected with the telescopic band, and the benefit of adopting this design lies in: when the backpack needs to be pulled, the straps can be quickly rolled up through the coil springs, so that the straps cannot be dragged on the ground, are not easy to twist into the rollers, and are not easy to be polluted by dust on the ground and the like.

Description

Braces telescopic pull rod knapsack

Technical Field

The utility model relates to a knapsack technical field especially relates to a braces telescopic pull rod knapsack.

Background

The backpack refers to a general name of a bag carried on the back when going out or marching. The material is diversified, and fashion trends are led by cases made of genuine leather, plastic materials, terylene, canvas, nylon, cotton, hemp and other textures. The style of the case is also expanded from the traditional business bag, schoolbag and traveling bag to the pen bag, change purse, small perfume bag and the like.

The pull rod knapsack is one kind can carry on the back also can draw dual-purpose package, but current pull rod knapsack still has the weak point, and the braces of current pull rod knapsack is fixed structure mostly, and when pulling the knapsack, the braces then can be dragged on the ground if not having the length of untieing, not only easily entangle inside the gyro wheel, still can be polluted by subaerial dust etc. and then lead to the braces impaired.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the pull rod backpack with the telescopic straps is provided for solving the problem that the straps of the existing pull rod backpack are easy to be damaged when being pulled.

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

a pull rod backpack with telescopic straps comprises a backpack body and straps, wherein a storage box is fixedly connected to the inside of the backpack body, a central shaft is rotatably connected to the inside of the storage box, a coil spring is fixedly connected to the side surface wall of the central shaft, a telescopic belt is wound and connected to the outer side of the coil spring and is fixedly connected with the straps, and a limiting part is fixedly connected to the outer surface wall of the backpack body;

the limiting part comprises an upper cover and a lower cover, and the upper cover is rotatably connected with the lower cover.

As a further description of the above technical solution:

the side table wall of lower cover inlays and is equipped with the slide bar, the slide bar is located the inboard one end welding of lower cover and has the fixed block to the exterior wall of slide bar is equipped with first spring, the both ends of first spring respectively with the interior table wall and the fixed block fixed connection of lower cover, the lower terminal surface welding of upper cover has the dead lever, the side table wall bottom welding of dead lever has the lug, the lug can with the fixed block joint.

As a further description of the above technical solution:

the bottom surface wall welding of upper cover has the gag lever post, spacing hole has been seted up to the inside of telescopic band, the gag lever post is pegged graft with spacing hole.

As a further description of the above technical solution:

and the upper end surface of the lower cover is fixedly connected with a second spring.

As a further description of the above technical solution:

the telescopic belt can penetrate through the limiting part from the inside of the limiting part, and the telescopic belt is connected with the upper cover and the lower cover in a sliding mode.

As a further description of the above technical solution:

the inside packing of braces has the sponge, the telescopic band adopts the nylon material.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, set up the braces on the knapsack body, the lower extreme of braces has set up the telescopic band, and the inside of knapsack body has set up the receiver, and the inside of receiver has set up the center pin, has set up the wind spring on the center pin, and the wind spring is connected with the telescopic band, adopts the benefit of this design to lie in: when the backpack needs to be pulled, the straps can be quickly rolled up through the coil springs, so that the straps cannot be dragged on the ground, are not easy to twist into the rollers, and are not easy to be polluted by dust on the ground and the like.

2. The utility model discloses in, set up spacing portion on the knapsack body, spacing portion comprises upper cover and lower cover, and the inside of lower cover has set up the slide bar, and the one end of slide bar has set up the fixed block, and the outside of slide bar has set up first spring, and the bottom of upper cover has set up dead lever and gag lever post, and the bottom of dead lever has set up the lug, has set up spacing hole on the telescopic band, adopts the benefit of this design to lie in: after the telescopic band is pulled to a proper length, the upper cover and the lower cover are rotated to enable the limiting rod to penetrate through the limiting hole, and the lug at the bottom of the fixing rod is clamped with the fixing block, so that the upper cover and the lower cover can be closed, the telescopic band is fixed, the coil spring cannot be wound, and the telescopic band is fixed.

3. The utility model discloses in, the inner wall of lower cover has set up the second spring, adopts the benefit of this design to lie in: when the spacing portion is loosened, the sliding rod is pulled outwards to separate the bump from the fixing block, the second spring can push the upper cover to separate from the lower cover, the limiting rod is separated from the spacing hole, and then the fixing of the telescopic belt is released.

Drawings

Fig. 1 is a schematic diagram illustrating an external structure of a backpack body according to an embodiment of the present invention;

fig. 2 shows a schematic view of an internal structure of a backpack body according to an embodiment of the present invention;

fig. 3 shows an internal structural schematic diagram of a limiting portion according to an embodiment of the present invention.

Illustration of the drawings:

1. a backpack body; 2. a harness; 3. a stretchable band; 4. a storage box; 5. a central shaft; 6. a coil spring; 7. a limiting part; 701. an upper cover; 702. a lower cover; 8. a slide bar; 9. a fixed block; 10. a first spring; 11. fixing the rod; 12. a bump; 13. a limiting rod; 14. a limiting hole; 15. a second spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a pull rod backpack with telescopic straps comprises a backpack body 1 and straps 2, wherein a storage box 4 is fixedly connected inside the backpack body 1, a central shaft 5 is rotatably connected inside the storage box 4, a coil spring 6 is fixedly connected to the side surface wall of the central shaft 5, a telescopic belt 3 is wound and connected to the outer side of the coil spring 6, the telescopic belt 3 is fixedly connected with the straps 2, and a limiting part 7 is fixedly connected to the outer surface wall of the backpack body 1;

the limiting part 7 comprises an upper cover 701 and a lower cover 702, the upper cover 701 and the lower cover 702 are rotatably connected, the length of the telescopic belt 3 can be adjusted through a coil spring 6, and therefore the telescopic belt 3 is not easy to damage.

Specifically, as shown in fig. 3, a sliding rod 8 is embedded in the side surface wall of the lower cover 702, a fixing block 9 is welded at one end of the sliding rod 8, which is located on the inner side of the lower cover 702, a first spring 10 is arranged on the outer surface wall of the sliding rod 8, two ends of the first spring 10 are respectively fixedly connected with the inner surface wall of the lower cover 702 and the fixing block 9, a fixing rod 11 is welded on the lower end face of the upper cover 701, a protruding block 12 is welded at the bottom of the side surface wall of the fixing rod 11, the protruding block 12 can be clamped with the fixing block 9, which is beneficial to improving the stability when the limiting part 7 is closed, and meanwhile, the sliding rod.

Specifically, as shown in fig. 3, a limiting rod 13 is welded to the bottom surface wall of the upper cover 701, a limiting hole 14 is formed in the telescopic belt 3, the limiting rod 13 is inserted into the limiting hole 14, and the limiting rod 13 is inserted into the limiting hole 14 to fix the telescopic belt 3.

Specifically, as shown in fig. 3, the second spring 15 is fixedly connected to the upper end surface of the lower cover 702, and the second spring 15 can jack the upper cover 701 up, so that the limiting rod 13 and the limiting hole 14 are quickly separated.

Specifically, as shown in fig. 3, the extensible belt 3 may penetrate through the inside of the limiting portion 7, and the extensible belt 3 may be slidably connected to both the upper cover 701 and the lower cover 702, so that the extensible belt 3 may slide inside the limiting portion 7 for convenient adjustment.

Specifically, as shown in fig. 1, the shoulder strap 2 is filled with sponge, the telescopic strap 3 is made of nylon, the shoulder strap 2 is filled with sponge to reduce the pressure of the shoulder strap 2 on the shoulder, and the nylon has the advantage of high toughness and hardness.

The working principle is as follows: when the telescopic belt is used, firstly, the limiting part 7 is in an open state, the telescopic belt 3 is pulled outwards, the coil spring 6 is stretched when the telescopic belt 3 is pulled, after the telescopic belt 3 is pulled to a proper length, the upper cover 701 and the lower cover 702 are rotated to enable the limiting rod 13 to penetrate through the limiting hole 14, the lug 12 at the bottom of the fixing rod 11 is clamped with the fixing block 9, at the moment, the upper cover 701 presses the second spring 15 to contract, the limiting part 7 is in a closed state, and the telescopic belt 3 is further fixed by the limiting part 7; secondly, the sliding rod 8 is pulled outwards to separate the bump 12 from the fixed block 9, the second spring 15 can release elasticity upwards to push the upper cover 701 to rotate, the limiting rod 13 is separated from the limiting hole 14, the telescopic belt 3 is wound under the elastic action of the coil spring 6 immediately, the backpack can be pulled on the ground by pulling out the pull rod at the moment, through the steps, the shoulder belt 2 can prolong and fix the telescopic belt 3 through the adjustment of the limiting part 7, the telescopic belt 3 is also wound quickly through the coil spring 6, the length of the shoulder belt 2 can be adjusted quickly, the switching of the pull back of the pull rod backpack is facilitated, and the problem that the shoulder belt 2 of the existing pull rod backpack is easy to be damaged when being pulled is solved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. A pull rod backpack with telescopic straps comprises a backpack body (1) and straps (2), and is characterized in that a storage box (4) is fixedly connected to the inside of the backpack body (1), a central shaft (5) is rotatably connected to the inside of the storage box (4), a coil spring (6) is fixedly connected to the side surface wall of the central shaft (5), a telescopic belt (3) is wound and connected to the outer side of the coil spring (6), the telescopic belt (3) is fixedly connected with the straps (2), and a limiting part (7) is fixedly connected to the outer surface wall of the backpack body (1);

the limiting part (7) comprises an upper cover (701) and a lower cover (702), and the upper cover (701) is rotatably connected with the lower cover (702).

2. The backpack with the telescopic straps as claimed in claim 1, wherein the side surface wall of the lower cover (702) is embedded with a sliding rod (8), one end of the sliding rod (8) located inside the lower cover (702) is welded with a fixing block (9), the outer surface wall of the sliding rod (8) is provided with a first spring (10), two ends of the first spring (10) are respectively fixedly connected with the inner surface wall of the lower cover (702) and the fixing block (9), the lower end surface of the upper cover (701) is welded with a fixing rod (11), the bottom of the side surface wall of the fixing rod (11) is welded with a projection (12), and the projection (12) can be clamped with the fixing block (9).

3. The backpack with the retractable straps as claimed in claim 1, wherein a limiting rod (13) is welded to the bottom surface wall of the upper cover (701), a limiting hole (14) is formed in the interior of the retractable strap (3), and the limiting rod (13) is inserted into the limiting hole (14).

4. The backpack as claimed in claim 1, wherein a second spring (15) is fixedly connected to the upper end surface of the lower cover (702).

5. The backpack with retractable straps as claimed in claim 1, wherein the retractable strap (3) is inserted through the inside of the stopper (7), and the retractable strap (3) is slidably connected to both the upper cover (701) and the lower cover (702).

6. The backpack as claimed in claim 1, wherein the strap (2) is filled with sponge and the strap (3) is made of nylon.