Backpack with buffer device

Abstract

The utility model discloses a knapsack with a buffer device, which comprises a knapsack main body, straps and the buffer device fixed on the back of the knapsack main body, and the straps are connected with the buffer device. The buffering device comprises a back plate and an elastic buffering assembly fixedly arranged in the middle of the back plate. The elastic buffer assembly comprises an inverted triangular box body, a buffer slide block and a cover plate, and the cover plate covers the inverted triangular box body to form a cavity for accommodating the buffer slide block; and the buffer slide block is elastically connected with three end points in the inverted triangular box body through a first elastic element, a second elastic element and a third elastic element respectively. The elastic elements in the elastic buffer assembly form a Y-shaped buffer structure, so that the buffer performance of the buffer device is improved, the load of the backpack main body can be more uniformly dispersed, the pressure concentration of a single point is reduced, the comfort and the stability are improved, and the service life of the backpack is prolonged. The vertical stabilizing rods and the vertical sliding blocks are additionally arranged on the two sides of the back plate, so that the situation that the backpack body shakes left and right in the movement process can be avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of backpacks, and in particular to a backpack with a buffer device. Background Art

[0002] Traditional backpacks experience oscillations due to human movement and ground conditions, generating periodic forces. Prolonged use can lead to shoulder fatigue and spinal health issues, especially for children and adolescents. Common methods for reducing stress include using sponge cushioning, waist belts to adjust the center of gravity, and elastic bands for shock absorption, but these methods are limited in effectiveness and have drawbacks.

[0003] Chinese patent application publication number CN108835848A discloses a cushioned shock-absorbing backpack with a cushioning spring connected between the shoulder straps and the backpack body. The gravity of the backpack body is transmitted to the shoulder straps via the cushioning spring. The cushioning spring can absorb the impact force on the shoulders and back caused by the up and down shaking of the backpack body, reducing the gravity load on the user's back and shoulders, and playing a protective role for the user's back and shoulders. Although this technology can reduce the gravity load on the shoulders and back, the backpack will not only rock up and down, forward and backward, but also left and right during use. In this case, the elastic force of the cushioning spring may cause the amplitude of the left and right rocking to increase, affecting the shock absorption effect and user experience. Utility Model Content

[0004] Aiming at the problems that the shoulder straps of ordinary backpacks in the prior art have insufficient buffering capacity and the existing buffering and shock-absorbing backpacks will shake left and right and affect the buffering effect, the utility model proposes a backpack with a buffering device to solve the above technical problems.

[0005] The present application proposes a backpack with a buffer device, comprising a backpack body, shoulder straps, and a buffer device fixed to the back of the backpack body, wherein the shoulder straps are connected to the buffer device; the buffer device comprises a back plate and an elastic buffer assembly fixed to the middle of the back plate; the elastic buffer assembly comprises an inverted triangular box body, a buffer slider, and a cover plate, wherein the cover plate covers the inverted triangular box body to form a cavity for accommodating the buffer slider; the buffer slider is elastically connected to the three end points of the inverted triangular box body via a first elastic element, a second elastic element, and a third elastic element, respectively. By fixing the buffer device to the back of the backpack body and connecting the buffer device to the shoulder straps, the gravitational load exerted by the backpack body on the shoulder straps is reduced by means of the buffer device. At the same time, by means of the elastic connection between the buffer slider and the three end points of the inverted triangular box body, a "Y"-shaped stable buffer structure is formed, which makes the load of the backpack body more evenly distributed, reduces the pressure concentration at a single point, and thus improves the overall comfort and stability.

[0006] In some specific embodiments, the central axis of the inverted triangular box body is further provided with a vertical travel groove that limits the travel of the buffer slider, and a vertical travel hole is provided in the cover plate at a position corresponding to the vertical travel groove, through which the buffer slider partially protrudes. The vertical travel groove allows the buffer slider to move only in the vertical direction. The corresponding travel hole cooperates with the vertical travel groove to limit the movement direction of the buffer slider, thereby preventing the buffer slider from tilting during movement.

[0007] In some specific embodiments, arc-shaped limit portions are provided at the top and end of the vertical travel groove. By providing arc-shaped limit portions at the top and end of the vertical travel groove, the travel range of the buffer slider can be more accurately limited.

[0008] In some specific embodiments, the buffer slider includes a central column, which is arranged perpendicular to the inverted triangular box body. A threaded hole for connecting to the shoulder strap is provided at the center of the central column facing the cover plate. This arrangement allows the bottom of the central column to move along the vertical travel groove and the top to move along the travel hole in the cover plate. The shoulder strap can also be connected to the threaded hole using bolts.

[0009] In some specific embodiments, three connecting posts extend from the circumference of the central post, with the angles between the connecting posts being equal. The ends of the connecting posts are provided with connection holes for connecting to the first, second, and third elastic elements. By extending the three connecting posts at equal angles, the buffer slider has a "Y"-shaped connection structure, thereby improving the cushioning performance of the elastic cushioning assembly formed between the buffer slider and the elastic elements.

[0010] In some specific embodiments, a first fixing post, a second fixing post, and a third fixing post are respectively provided at the upper left end point, the upper right end point, and the lower middle end point of the inverted triangular box body. The first elastic element, the second elastic element, and the third elastic element are respectively connected to the first fixing post, the second fixing post, and the third fixing post. The provision of three fixing posts at the three end points creates a stable triangular structure, improving the stability of the connection between each elastic element and the fixing post.

[0011] In some specific embodiments, the first, second, and third fixing posts each have mounting holes formed in their centers, and the cover plate has through-holes formed at positions corresponding to the mounting holes. This arrangement allows the cover plate to be connected to the fixing posts using fasteners such as bolts, while ensuring precise alignment of the holes and a tight fit.

[0012] In some specific embodiments, the first elastic element and the second elastic element are tension springs, and the third elastic element is a compression spring. Due to the arrangement of the tension springs and the compression springs, the buffer slider can quickly receive the tension of the tension springs and the force of the compression springs releasing compression when moving downward, thereby improving the buffering performance of the buffer device.

[0013] In some specific embodiments, vertical stabilizing rods are provided on both sides of the back panel, through which a plurality of vertical sliders pass, which are connected to the shoulder straps. The vertical stabilizing rods and the vertical sliders ensure that the relative movement direction of the shoulder straps and the backpack body is fixed in a vertical direction, thus preventing side-to-side shaking.

[0014] In some specific embodiments, mounting plates extend outward from the three endpoints of the inverted triangular box body, and the mounting plates are provided with through holes for securing the box body to the back of the backpack body. By extending the mounting plates outward from the three endpoints of the inverted triangular box body, the inverted triangular box body can be secured to the back of the backpack body by riveting or other means, thereby making the installation of the cushioning device more stable.

[0015] Compared with the prior art, the present invention has the following advantages:

[0016] This application mainly addresses the problems of insufficient cushioning capacity of shoulder straps of conventional backpacks in the prior art and the problem that existing cushioning and shock-absorbing backpacks will sway left and right, thus affecting the cushioning effect. This application proposes a backpack with a cushioning device. By means of a "Y"-shaped cushioning structure formed by elastic elements in an elastic cushioning assembly, the cushioning performance of the cushioning device is improved, and the load of the backpack body is more evenly distributed, reducing pressure concentration at a single point, thereby improving comfort and stability. At the same time, the vertical stabilizing rods and vertical sliders added on both sides of the back panel provide more vertical support for the connection between the shoulder straps and the cushioning device, which not only improves the connection stability, but also prevents the backpack body from swaying left and right during movement, which would weaken the cushioning effect of the cushioning device. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many of the expected advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with respect to each other. Like reference numerals designate corresponding similar parts.

[0018] Figure 1 1 is a schematic structural diagram of a backpack with a cushioning device according to an embodiment of the present utility model;

[0019] Figure 2 It is a structural schematic diagram of a buffer device according to a specific embodiment of the utility model;

[0020] Figure 3 It is a structural schematic diagram of an elastic buffer assembly without elastic elements according to a specific embodiment of the present invention.

[0021] The meaning of the numbers in the figure:

[0022] Backpack body 01, shoulder strap 02, buffer device 03, back plate 04, vertical stabilizing rod 041, vertical slider 042, elastic buffer assembly 05, inverted triangle box body 06, buffer slider 07, cover plate 08, first elastic element 09, second elastic element 10, third elastic element 11, vertical travel groove 12, travel hole 13, limit part 14, center column 15, threaded hole 16, connecting column 17, connecting hole 18, first fixing column 19, second fixing column 20, third fixing column 21, mounting hole 22, mounting plate 23. DETAILED DESCRIPTION

[0023] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are shown by way of illustrative specific embodiments in which the present invention may be practiced. In this regard, directional terms, such as "top," "bottom," "left," "right," "up," "down," etc., are used with reference to the orientation of the figures being described. Because the components of the embodiments may be positioned in several different orientations, directional terms are used for illustrative purposes and are in no way limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. The following detailed description should therefore not be taken in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0024] The utility model provides a backpack with a buffer device. Figure 1 The structure diagram of the backpack with a cushioning device according to an embodiment of the present invention is shown. As shown in the figure, the backpack includes a backpack body 01, a shoulder strap 02, and a cushioning device 03 fixed to the back of the backpack body 01. The shoulder strap 02 is connected to the cushioning device 03. The cushioning device 03 includes a backboard 04 and an elastic cushioning component 05 fixed to the middle of the backboard 04. The specific principle and structure are combined Figure 2-3 Detailed description of the application.

[0025] Figure 2 FIG. 1 shows a schematic structural diagram of a buffer device according to a specific embodiment of the present invention. Figure 1-2As shown, the elastic buffer assembly 05 includes an inverted triangular box body 06, a buffer slider 07, and a cover plate 08. The cover plate 08 covers the inverted triangular box body 06 to form a cavity for accommodating the buffer slider 07. The buffer slider 07 is elastically connected to the three endpoints of the inverted triangular box body 06 via a first elastic element 09, a second elastic element 10, and a third elastic element 11. By fixing the buffer device 03 to the back of the backpack body 01 and connecting the buffer device 03 to the shoulder strap 02, the gravitational load exerted by the backpack body 01 on the shoulder strap 02 is reduced by the buffer device 03. When the backpack body 01 fluctuates up and down during movement, the elastic force of each elastic element will quickly and gently restore it to a stable state. At the same time, the elastic connection between the buffer slider 07 and the three endpoints of the inverted triangular box body 06 forms a "Y"-shaped stable buffer structure, which makes the load of the backpack body 01 more evenly distributed, reduces the pressure concentration at a single point, and thus improves the overall comfort and stability.

[0026] In this specific embodiment, vertical stabilizing rods 041 are provided on both sides of the back panel 04. A number of vertical sliders 042 pass through these rods, which are connected to the shoulder straps 02. The arrangement of these vertical stabilizing rods 041 and sliders 042 adds vertical stabilizing force to both sides of the buffer device 03, securing the relative movement direction between the shoulder straps 02 and the backpack body 01 in a vertical direction. This prevents the buffering effect of the buffer device 03 from being weakened due to the left-right swaying of the backpack body 01 during movement.

[0027] In a specific embodiment, the first elastic element 09 and the second elastic element 10 are tension springs, and the third elastic element 11 is a compression spring. The combination of the tension and compression springs allows the buffer slider 07 to quickly receive the tension of the tension springs and the decompression force of the compression springs when moving downward, thereby improving the buffering performance of the buffer device 03.

[0028] Figure 3 FIG. 1 shows a schematic structural diagram of an elastic buffer assembly with an elastic element removed according to a specific embodiment of the present invention. Figure 1-3 As shown, the central axis of the inverted triangle box body 06 is also provided with a vertical travel groove 12 that limits the travel of the buffer slider 07. A vertical travel hole 13 is provided at the position corresponding to the vertical travel groove 12 on the cover plate 08, through which the buffer slider 07 partially protrudes. The vertical travel groove 12 allows the buffer slider 07 to move only in the vertical direction. The corresponding travel hole 13 cooperates with the vertical travel groove 12 to limit the movement direction of the buffer slider 07, thus preventing the buffer slider 07 from shaking or tilting during movement, which could affect the buffering performance.

[0029] In a specific embodiment, the top and end of the vertical stroke groove 12 are both provided with arc-shaped limit portions 14. By providing the arc-shaped limit portions 14 at the top and end of the vertical stroke groove 12, the travel range of the buffer slider 07 can be more accurately limited.

[0030] In this embodiment, the buffer slider 07 includes a central column 15, which is arranged perpendicular to the inverted triangular box body 06. A threaded hole 16 is provided on the center of the central column 15 facing the cover plate 08 for connection with the shoulder strap 02. This arrangement allows the bottom of the central column 15 to move along the vertical travel slot 12, while the top of the central column 15 moves along the travel hole 13 of the cover plate 08. Furthermore, the shoulder strap 02 can be connected to the threaded hole 16 using bolts, thereby connecting the shoulder strap 02 to the buffer device 03.

[0031] In a specific embodiment, three connecting posts 17 extend from the circumference of center post 15. The angles between connecting posts 17 are equal, and the ends of connecting posts 17 are provided with connection holes 18 for connecting to first elastic element 09, second elastic element 10, and third elastic element 11. By extending three connecting posts 17 at equal angles, buffer slider 07 has a "Y"-shaped connection structure, thereby improving the cushioning performance of elastic buffer assembly 05 formed by buffer slider 07 and the elastic elements.

[0032] In this specific embodiment, a first fixing post 19, a second fixing post 20, and a third fixing post 21 are respectively provided at the upper left, upper right, and lower middle endpoints of the inverted triangular box body 06. The first elastic element 09, the second elastic element 10, and the third elastic element 11 are respectively connected to the first fixing post 19, the second fixing post 20, and the third fixing post 21. The provision of three fixing posts at the three endpoints forms a stable triangular structure, improving the stability of the connections between the elastic elements and the fixing posts.

[0033] In this embodiment, mounting holes 22 are defined in the centers of the first, second, and third fixing posts 19, 20, and 21, and through-holes are defined in the cover plate 08 at locations corresponding to the mounting holes 22. This arrangement allows the cover plate 08 to be connected to the fixing posts using fasteners such as bolts, while ensuring precise alignment of the holes and a tight fit.

[0034] In this embodiment, mounting plates 23 extend outward from the three endpoints of the inverted triangular box body 06. These mounting plates 23 are provided with through-holes for securing the box body 01 to the back. By extending the mounting plates 23 outward from the three endpoints of the inverted triangular box body 06, the box body 06 can be secured to the back of the backpack body 01 by riveting or other means, making the installation of the cushioning device 03 more secure.

[0035] This application primarily addresses the problems of insufficient shoulder strap cushioning capacity in conventional backpacks and the side-to-side swaying of conventional cushioning and shock-absorbing backpacks, which affects the cushioning effect. This application proposes a backpack with a cushioning device. By utilizing a "Y"-shaped cushioning structure formed by the elastic elements within the elastic cushioning assembly 05, the cushioning performance of the cushioning device 03 is improved. Furthermore, the load on the backpack body 01 is more evenly distributed, reducing pressure concentration at a single point, thereby improving comfort and stability. Furthermore, the vertical stabilizing rods 041 and vertical sliders 042 added to both sides of the back panel 04 provide more vertical support for the connection between the shoulder straps 02 and the cushioning device 03, thereby improving the stability of the connection and preventing the backpack body 01 from swaying side to side during movement, which could weaken the cushioning effect of the cushioning device 03.

[0036] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that the combination of these measures cannot be used to advantage. Any reference signs in the claims should not be considered as limiting the scope.

Claims

1. A backpack with a cushioning device, comprising a backpack body and shoulder straps, characterized in that: It also includes a buffer device fixed to the back of the backpack body, and the shoulder strap is connected to the buffer device; the buffer device includes a back plate and an elastic buffer component fixed to the middle of the back plate; the elastic buffer component includes an inverted triangular box body, a buffer slider and a cover plate, and the cover plate is covered on the inverted triangular box body to form a cavity for accommodating the buffer slider; the buffer slider is elastically connected to the three end points in the inverted triangular box body through a first elastic element, a second elastic element, and a third elastic element respectively.

2. The backpack with a cushioning device according to claim 1, characterized in that: The central axis of the inverted triangle box body is further provided with a vertical stroke groove for limiting the stroke of the buffer slider, and the cover plate is provided with a vertical stroke hole at a position corresponding to the vertical stroke groove, and the buffer slider partially protrudes from the stroke hole.

3. The backpack with a cushioning device according to claim 2, characterized in that: The top and the end of the vertical travel groove are both provided with arc-shaped limiting parts.

4. The backpack with a cushioning device according to claim 1, characterized in that: The buffer slider includes a central column, which is arranged perpendicular to the inverted triangle box body, and a threaded hole for connecting with the shoulder strap is opened on the center of the surface of the central column facing the cover plate.

5. The backpack with a cushioning device according to claim 4, characterized in that: Three connecting columns extend from the circumferential surface of the central column, the angles between the connecting columns are equal, and the ends of the connecting columns are provided with connecting holes connected to the first elastic element, the second elastic element, and the third elastic element.

6. The backpack with a cushioning device according to claim 1, characterized in that: A first fixing column, a second fixing column and a third fixing column are respectively provided at the upper left end point, the upper right end point and the middle lower end point of the inverted triangle box body, and the first elastic element, the second elastic element and the third elastic element are respectively connected to the first fixing column, the second fixing column and the third fixing column.

7. The backpack with a cushioning device according to claim 6, characterized in that: The centers of the first fixing column, the second fixing column, and the third fixing column are all provided with mounting holes, and the cover plate is provided with through holes at positions corresponding to the mounting holes.

8. The backpack with a cushioning device according to claim 1, characterized in that: The first elastic element and the second elastic element are tension springs, and the third elastic element is a compression spring.

9. The backpack with a cushioning device according to claim 1, characterized in that: Vertical stabilizing rods are also provided on both sides of the back plate. A plurality of vertical sliders pass through the vertical stabilizing rods, and the vertical sliders are connected to the shoulder straps.

10. The backpack with a cushioning device according to claim 1, characterized in that: The three end points of the inverted triangle box body extend outwards to form mounting plates, and the mounting plates are provided with through holes for fixing to the back of the backpack body.

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