CN212938568U

CN212938568U - Comfortable type student's knapsack that gas permeability is good

Info

Publication number: CN212938568U
Application number: CN202022398985.1U
Authority: CN
Inventors: 刘靖楠
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-10-26
Filing date: 2020-10-26
Publication date: 2021-04-13
Anticipated expiration: 2030-10-26

Abstract

The utility model belongs to the technical field of the knapsack, concretely relates to comfortable type student backpack that gas permeability is good, including the knapsack body, the front surface of knapsack body fixed mounting has two braces and two mounting brackets respectively, the inboard of every mounting bracket is all rotated and is connected with the connecting axle, the lower extreme of connecting axle runs through the mounting bracket and has cup jointed the gear, and the outside of connecting axle has cup jointed the winding up roller, the outside fixed mounting of winding up roller has the connecting band of being connected with the braces, the bottom of mounting bracket is seted up flutedly, surface symmetry fixed mounting has the telescopic link on the inner chamber of recess, the common fixedly connected with of lower extreme and gear engagement's ring gear of two telescopic links, fixedly connected with reset spring between ring gear. The utility model discloses a rotate the winding up roller, can adopt ring gear and gear to connecting band rolling or release, fixed under the mating reaction of reset spring and telescopic link to the reinforcing is to the fixed effect of the braces after the adjustment length, and it is comparatively comfortable to use.

Description

Comfortable type student's knapsack that gas permeability is good

Technical Field

The utility model relates to a knapsack technical field specifically is a comfortable type student's knapsack that gas permeability is good.

Background

The schoolbag refers to a bag made of cloth, leather and the like, is used for carrying personal articles such as textbooks, stationery and the like, and is usually carried on the back of a user to walk. In ancient times, Chinese generally used pure cloth book-pocket stationery or gowns as stationery; in modern times, more and more people begin to use current schoolbag under the influence of the west. Modern schoolbag has various styles, most common is a knapsack type schoolbag, and the schoolbag is also provided with wheels, so that the schoolbag can be dragged; in addition, a portable schoolbag is also used by people, which is commonly seen in senior high school students and college students.

The braces of current student schoolbag are fixed the effect relatively poor, and easy automatic lengthening after adjustment length leads to the comfort level of using to reduce. Therefore, a comfortable student backpack with good air permeability is provided.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a comfortable type student's knapsack that gas permeability is good, it is relatively poor to have solved the fixed effect of braces of current student's schoolbag, and easy automatic lengthening behind adjustment length leads to the problem that the comfort level that uses reduces.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a comfortable type student's knapsack that gas permeability is good, includes the knapsack body, the front surface of knapsack body fixed mounting respectively has two braces and two mounting brackets, every the inboard of mounting bracket is all rotated and is connected with the connecting axle, the lower extreme of connecting axle runs through the mounting bracket and has cup jointed the gear, just the winding up roller has been cup jointed in the outside of connecting axle, the outside fixed mounting of winding up roller has the connecting band of being connected with the braces, the bottom of mounting bracket is seted up flutedly, surface symmetry fixed mounting has the telescopic link, two on the inner chamber of recess the common fixedly connected with of lower extreme and gear engagement's ring gear of telescopic link, fixedly connected with reset spring between ring gear and the mounting bracket.

Preferably, the return spring is located on the outer side of the connecting shaft, and the connecting shaft is connected with the mounting frame through a bearing.

Preferably, the mounting rack is of a square structure, and the tooth clearance of the gear is 0.13 mm.

Preferably, the bottom of the backpack body is fixedly provided with an anti-abrasion pad, and the lower surface of the anti-abrasion pad is fixedly provided with an anti-skid bulge.

Preferably, the top of the backpack body is fixedly provided with a handle, and the outer side of the handle is sleeved with a rubber sleeve.

Preferably, the front surface fixed mounting of knapsack body has the backup pad, the front surface fixed mounting of backup pad has the rubber support pad, just the mounting groove has been seted up to the front surface of backup pad, the even fixed mounting in inner chamber rear surface of mounting groove has a plurality of buffer spring, and is a plurality of the common fixedly connected with silica gel pad of buffer spring's one end.

Compared with the prior art, the beneficial effects of the utility model are as follows:

1. the utility model discloses a rotate the winding up roller, can adopt ring gear and gear to connecting band rolling or release, fixed under the mating reaction of reset spring and telescopic link to the reinforcing is to the fixed effect of the braces after the adjustment length, and it is comparatively comfortable to use.

2. The utility model discloses be provided with rubber supporting pad, adopt rubber supporting pad and back contact to utilize rubber supporting pad, silica gel pad and buffer spring's elastic deformation ability, can cushion the pressure that the back received, improve the comfort level.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic view of the internal structure of the mounting rack of the present invention;

fig. 3 is the internal structure diagram of the rubber supporting pad and the supporting plate of the present invention.

In the figure: 1. an anti-wear pad; 2. a connecting belt; 3. a rubber support pad; 4. a backpack body; 5. a harness; 6. a handle; 7. a mounting frame; 8. a connecting shaft; 9. a winding roller; 10. a groove; 11. a telescopic rod; 12. a toothed ring; 13. a gear; 14. a return spring; 15. a silica gel pad; 16. a buffer spring; 17. mounting grooves; 18. and a support plate.

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 in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Referring to fig. 1-3, a comfortable student backpack with good air permeability comprises a backpack body 4, two straps 5 and two mounting frames 7 are respectively and fixedly mounted on the front surface of the backpack body 4, a connecting shaft 8 is rotatably connected to the inner side of each mounting frame 7, a gear 13 is sleeved on the lower end of the connecting shaft 8 through the mounting frames 7, a winding roller 9 is sleeved on the outer side of the connecting shaft 8, a connecting belt 2 connected with the straps 5 is fixedly mounted on the outer side of the winding roller 9, a groove 10 is formed in the bottom of the mounting frame 7, telescopic rods 11 are symmetrically and fixedly mounted on the upper surface of the inner cavity of the groove 10, a toothed ring 12 meshed with the gear 13 is fixedly connected to the lower ends of the two telescopic rods 11 together, a return spring 14 is fixedly connected between the toothed ring 12 and the mounting frame 7, the connecting belt 2 can be released by rotating the winding roller 9, the toothed ring 12 and the gear 13 are adopted to be fixed under, thereby enhancing the fixing effect of the shoulder strap 5 with the adjusted length and being more comfortable to use.

Referring to fig. 2, the return spring 14 is located outside the connecting shaft 8, and the connecting shaft 8 is connected to the mounting frame 7 through a bearing.

Referring to fig. 2, the mounting frame 7 is in a "square" shape, and the tooth gap of the gear 13 is 0.13mm, so as to enhance the meshing sensitivity of the gear 13 and the gear ring 12.

Referring to fig. 1, an anti-wear pad 1 is fixedly mounted at the bottom of the backpack body 4, and anti-skid protrusions are fixedly mounted on the lower surface of the anti-wear pad 1, so that the anti-wear capability of the bottom of the backpack body 4 is improved.

Referring to fig. 1, a handle 6 is fixedly installed at the top of the backpack body 4, and a rubber sleeve is sleeved outside the handle 6, so that the backpack body 4 can be lifted conveniently.

Referring to fig. 2, a supporting plate 18 is fixedly mounted on the front surface of the backpack body 4, a rubber supporting pad 3 is fixedly mounted on the front surface of the supporting plate 18, an installation groove 17 is formed in the front surface of the supporting plate 18, a plurality of buffer springs 16 are uniformly and fixedly mounted on the rear surface of an inner cavity of the installation groove 17, and a silica gel pad 15 is fixedly connected to one ends of the buffer springs 16 together, so that the buffering capacity on the back is improved, and the comfort level is high.

The utility model discloses the concrete implementation process as follows:

before use, the total length of the strap 5 and the connecting belt 2 is adjusted according to requirements, the toothed ring 12 is firstly pressed to compress the telescopic rod 11 and the return spring 14, the toothed ring 12 moves to the inside of the groove 10, then the gear 13 is rotated to drive the winding roller 9 connected through the connecting shaft 8 to rotate, so that the connecting belt 2 is wound or released, finally the toothed ring 12 is loosened, and under the elastic force action of the return spring 14, the toothed ring 12 is meshed with the gear 13 again to fix the winding roller 9. When knapsack body 4 caused pressure to the human back, elastic deformation all took place for rubber supporting pad 3, silica gel pad 15 and buffer spring 16, cushioned the pressure that the human back received, improved the comfort level of using.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a comfortable type student's knapsack that gas permeability is good, includes knapsack body (4), its characterized in that: the front surface of knapsack body (4) is fixed mounting respectively has two braces (5) and two mounting brackets (7), every the inboard of mounting bracket (7) is all rotated and is connected with connecting axle (8), the lower extreme of connecting axle (8) runs through mounting bracket (7) and has cup jointed gear (13), just the outside of connecting axle (8) has cup jointed winding up roller (9), the outside fixed mounting of winding up roller (9) has connecting band (2) of being connected with braces (5), the bottom of mounting bracket (7) is seted up flutedly (10), the inner chamber upper surface symmetry fixed mounting of recess (10) has telescopic link (11), two the common fixedly connected with of lower extreme of telescopic link (11) and gear (13) meshing's ring gear (12), fixedly connected with reset spring (14) between ring gear (12) and mounting bracket (7).

2. A comfortable student backpack with good air permeability according to claim 1, characterized in that: the reset spring (14) is located on the outer side of the connecting shaft (8), and the connecting shaft (8) is connected with the mounting frame (7) through a bearing.

3. A comfortable student backpack with good air permeability according to claim 1, characterized in that: the mounting rack (7) is of a structure shaped like a Chinese character 'kou', and the tooth clearance of the gear (13) is 0.13 mm.

4. A comfortable student backpack with good air permeability according to claim 1, characterized in that: the anti-skidding backpack is characterized in that an anti-skidding pad (1) is fixedly mounted at the bottom of the backpack body (4), and anti-skidding bulges are fixedly mounted on the lower surface of the anti-skidding pad (1).

5. A comfortable student backpack with good air permeability according to claim 1, characterized in that: the backpack is characterized in that a lifting handle (6) is fixedly mounted at the top of the backpack body (4), and a rubber sleeve is sleeved on the outer side of the lifting handle (6).

6. A comfortable student backpack with good air permeability according to claim 1, characterized in that: the front fixed surface of knapsack body (4) installs backup pad (18), the front fixed surface of backup pad (18) installs rubber support pad (3), just mounting groove (17) have been seted up to the front surface of backup pad (18), the even fixed mounting of inner chamber rear surface of mounting groove (17) has a plurality of buffer spring (16), and is a plurality of the common fixedly connected with silica gel pad (15) of one end of buffer spring (16).