阅读说明：本技术 一种弹性背负装置及弹性背包 (Elastic backpack device and elastic backpack ) 是由 付成龙 冷雨泉 融亦鸣 孙博约 杨连昕 邓然宝 林欣 林诚育 于 2020-12-14 设计创作，主要内容包括：本申请提供了一种弹性背负装置及弹性背包,所述弹性背负装置包括：背板(2),用于被穿戴并且支撑于人体的背部；连接板(3),可拆卸的安装于所述背板(2)上；背包安装板(4),用于固定安装背包,所述背包安装板(4)通过直线滑轨组件和缓冲组件可活动地安装于所述连接板(3)上,所述直线滑轨组件用于引导所述背包安装板(4)相对所述连接板(3)上下移动,所述缓冲组件用于减小所述背包安装板(4)在竖直方向的振动幅度。本申请具有模块化结构,背包装卸起来十分方便高效,能够节约士兵宝贵的战时时间。(The application provides a device and elasticity knapsack are born to elasticity, the device is born to elasticity includes: a back plate (2) to be worn and supported on the back of a human body; the connecting plate (3) is detachably arranged on the back plate (2); knapsack mounting panel (4) for the fixed mounting knapsack, knapsack mounting panel (4) through linear slide rail set spare and buffering subassembly movably install in on connecting plate (3), linear slide rail set spare is used for the guide knapsack mounting panel (4) is relative connecting plate (3) reciprocates, buffering subassembly is used for reducing knapsack mounting panel (4) is at the vibration range of vertical direction. This application has modular structure, and the knapsack loading and unloading is got up very convenient high-efficient, can practice thrift the precious wartime time of soldier.)

1. An elastic backpack device, comprising:

a back plate (2) to be worn and supported on the back of a human body;

the connecting plate (3) is detachably arranged on the back plate (2);

knapsack mounting panel (4) for the fixed mounting knapsack, knapsack mounting panel (4) through linear slide rail set spare and buffering subassembly movably install in on connecting plate (3), linear slide rail set spare is used for the guide knapsack mounting panel (4) is relative connecting plate (3) reciprocates, buffering subassembly is used for reducing knapsack mounting panel (4) is at the vibration range of vertical direction.

2. Elastic backpack device according to claim 1, characterized in that the connection plate (3) is detachably mounted on the back plate (2) by means of a plurality of sets of bayonet components.

3. The elastic backpack device as claimed in claim 2, wherein each set of said male and female components comprises a female buckle (6) and a male buckle (7) which are inserted and matched with each other;

the female buckle (6) is mounted on one of the back plate (2) and the connecting plate (3), and the male buckle (7) is mounted on the other of the back plate (2) and the connecting plate (3);

the female buckle (6) comprises a clamping block (63) used for locking the male buckle (7), the clamping block (63) is connected with a pull rope (8), and the clamping block (63) is pulled through the pull rope (8) so as to release the locking of the clamping block (63) on the male buckle (7).

4. The elastic backpack as claimed in claim 3, characterized in that the male buckle (7) comprises a male buckle seat (71), a connecting post (72) vertically arranged on the male buckle seat (71) and a male buckle head (73) connected to the front end of the connecting post (72), the diameter of the male buckle head (73) is larger than that of the connecting post (72) to form a snap groove between the male buckle head (73) and the male buckle seat (71);

female buckle (6) are including female buckle body (61), form the confession on female buckle body (61) public discount head (73) male jack (62) of inserting, work as public discount head (73) insert when jack (62), fixture block (63) elastic clamping is in the block inslot, in order to lock public buckle (7).

5. The elastic backpack device as claimed in claim 4, wherein a slot (64) vertically intersecting with the insertion hole (62) is formed in the female buckle body (61), and the latch (63) is movably arranged in the slot (64) through a spring (68);

a semicircular notch (63a) is formed at the front end of the clamping block (63), when the male buckle head (73) is inserted into the insertion hole (62), the male buckle head (73) is extruded and penetrates through the semicircular notch (63a), and under the action of the spring (68), the semicircular notch (63a) is abutted and surrounds the connecting column (72); the rear end of the clamping block (63) is connected with the pull rope (8).

6. The elastic backpack as set forth in claim 5, wherein the latch 63 is a rectangular frame-like structure, a stop strip 66 fixedly connected to the female buckle body 61 is provided in the rectangular frame-like structure, and the spring 68 is provided between a front end of the rectangular frame-like structure and the stop strip 66.

7. The elastic backpack device as claimed in any one of claims 3-6, wherein one end of the pulling rope (8) is connected to a plurality of blocks (63) corresponding to the plurality of sets of eye-splice assemblies, and the other end is connected to a handle (9).

8. Elastic backpack device according to any of the claims 1-6, wherein the damping assembly comprises a plurality of fixed pulleys (12), an elastic cord (13) in the form of an endless belt and wound around the plurality of fixed pulleys (12), and at least one movable pulley (14) suspended from the elastic cord (13);

the fixed pulleys (12) are rotatably arranged on the connecting plate (3), and the movable pulley (14) is rotatably arranged on the backpack mounting plate (4).

9. Elastic backpack according to claim 8, characterized in that at least one of the fixed pulleys (12) is mounted on the connection plate (3) in a position-adjustable manner for varying the pretension of the elastic cord (13).

10. A flexible backpack, comprising: a backpack body and a resilient carrying device according to any one of claims 1 to 9 for carrying the backpack body on a human body.

Technical Field

The application relates to the technical field of human body wearing equipment, in particular to an elastic backpack device and an elastic backpack.

Background

The backpack has unique advantages as a carrying mode for thousands of years, such as liberation of hands, stability, reliability and the like. Therefore, backpacks have become one of the preferred solutions for people to carry their belongings today. Soldier marchs are often required to carry a significant amount of load for a long period of time. When the user walks under the condition of carrying a load, the muscle of the lower limb of the human body can do extra work, so that the muscle of the lower limb is tired, and the user cannot walk under the load for a long time. Moreover, most shoulder straps of backpack are basically fixed on the back of the backpack, so when the center of gravity vibrates up and down during walking, the force of the backpack pressing the shoulders is very large, which causes the muscles of the shoulders to ache, and the fatigue feeling of human body is increased.

Because of this, the elasticity knapsack that has the buffer function is produced at the same time. The existing elastic backpack enables the backpack to vibrate up and down to achieve the aim that the backpack is basically maintained at the same horizontal height when people walk by separating the backpack from the back of a human body, so that the problems of muscle soreness and the like can be effectively reduced, and the load bearing distance is increased.

However, although the conventional elastic backpack can reduce energy loss of a human body, it is difficult to assemble and disassemble because of its integral structure, and is slow in assembling and disassembling speed, so that it is inconvenient to use. For soldiers, this can result in the loss of valuable time when confronted.

Disclosure of Invention

The application provides an elasticity bears device and elasticity knapsack has modular structure, and the knapsack loading and unloading is got up very convenient high-efficient, can practice thrift the precious wartime time of soldier.

In a first aspect, there is provided a resilient backpack device comprising: a back panel for being worn and supported on the back of a human body; the connecting plate is detachably arranged on the back plate; the backpack mounting panel for the fixed mounting knapsack, the knapsack mounting panel through linear slide rail set spare and buffering subassembly movably install in on the connecting plate, linear slide rail set spare is used for guiding the knapsack mounting panel is relative the connecting plate reciprocates, the buffering subassembly is used for reducing the vibration range of knapsack mounting panel in vertical direction.

According to the elasticity backpack device that this application embodiment provided, through the modularized design, connecting plate detachable installs on the backplate, and this connecting plate is connected with the knapsack mounting panel, installs the knapsack on the knapsack mounting panel for the knapsack loading and unloading is got up very convenient high-efficient, can practice thrift the precious wartime time of soldier, and the soldier of being convenient for puts into combat fast.

In addition, the knapsack mounting panel is movably installed on the connecting plate through linear slide rail assembly and buffering subassembly, then at human knapsack load walking motion's in-process, linear slide rail assembly guide knapsack is along vertical direction reciprocating motion, reduce the vibration range that knapsack reciprocating motion produced from top to bottom through buffering subassembly, make the impact force of operation undershirt to human shoulder obtain good buffering, alleviate the knapsack to the oppression power of shoulder, avoid the knapsack to cause fatigue damage to shoulder muscle, and the low limbs are pedaled the ground power peak value to ground and are reduced.

In one possible design, the connecting plate is detachably mounted on the back plate through a plurality of groups of inserting and buckling assemblies.

In one possible design, each group of the insert buckle components comprises a female buckle and a male buckle which are mutually inserted and matched; the female buckle is mounted on one of the back plate and the connecting plate, and the male buckle is mounted on the other of the back plate and the connecting plate; the female buckle comprises a clamping block for locking the male buckle, the clamping block is connected with a pull rope, and the clamping block is pulled through the pull rope so as to release the locking of the male buckle by the clamping block.

According to the elasticity device of bearing back that this application embodiment provided, when the knapsack was born to needs, the soldier can at first easily wear the operation undershirt to on being fixed in the knapsack mounting panel with the knapsack, later correspond the male buckle by another companion and insert in the box, after the male buckle inserted in the box, the fixture block can be locked the male buckle, prevents that the walking in-process connecting plate from taking place to drop. The tail end of the clamping block is connected with the pull rope, when the backpack needs to be detached, a user can pull the clamping block backwards through the pull rope to unlock the male buckle, so that the connecting plate can be taken down from the back plate, and a soldier can take the backpack conveniently.

In one possible design, the male buckle comprises a male buckle seat, a connecting column vertically arranged on the male buckle seat and a male buckle connected to the front end of the connecting column, and the diameter of the male buckle is larger than that of the connecting column so as to form a clamping groove between the male buckle and the male buckle seat; the box includes the box body, form on the box body and supply pin head male jack male, work as pin head inserts when the jack, fixture block elastic clamping is in the block inslot, in order to lock the pin.

In one possible design, a slot which is vertically intersected with the jack is formed in the female buckle body, and the clamping block is movably arranged in the slot through a spring; a semicircular notch is formed at the front end of the clamping block, when the male buckle head is inserted into the insertion hole, the male buckle head is extruded and penetrates through the semicircular notch, and the semicircular notch is abutted against and surrounds the connecting column under the action of the spring; the rear end of the clamping block is connected with the pull rope.

In one possible design, the fixture block is a rectangular frame-shaped structure, a stop strip fixedly connected with the female buckle body is arranged in the rectangular frame-shaped structure, and the spring is arranged at the front end of the rectangular frame-shaped structure and between the stop strips.

Through the arrangement, the fixture block can be accurately positioned, reliable elastic connection between the fixture block and the female buckle body is realized, and the rear end part of the stop bar can be conveniently connected with the pull rope. And then can realize that backplate and connecting plate are reliable, the high efficiency can be dismantled and be connected, make things convenient for the installation, the uninstallation of knapsack, the soldier of being convenient for drops into the battle fast.

In one possible design, one end of the pull rope is connected with a plurality of clamping blocks corresponding to the plurality of groups of eye-splice components, and the other end of the pull rope is connected with the handle.

In one possible design, the buffer assembly includes a plurality of fixed pulleys, an elastic rope in an endless belt shape and wound on the plurality of fixed pulleys, and at least one movable pulley suspended on the elastic rope; the fixed pulleys are rotatably arranged on the connecting plate, and the movable pulley is rotatably arranged on the backpack mounting plate.

In one possible design, at least one fixed pulley is mounted on the connecting plate in an adjustable position to change the pretightening force of the elastic rope.

Through the arrangement, on the one hand, the initial pretightening force of the elastic rope can be flexibly adjusted according to the weight of the backpack, so that the backpack is always suspended at a proper height. On the other hand, also can conveniently pull down and change the elastic rope, can satisfy the user demand of different load weight according to the elastic rope of the different elastic forces of the weight installation of knapsack for buffering effect is better.

In one possible design, the movable pulley is mounted on the backpack mounting plate with adjustable height.

In a second aspect, there is provided an elastic backpack comprising a backpack body and an elastic carrying device as provided in any one of the possible designs of the first aspect for carrying the backpack body on a person.

Drawings

Fig. 1 is a schematic structural view of an elastic backpack device provided in an embodiment of the present application.

Fig. 2 is a schematic structural view of a wearing part of the elastic backpack device provided by the embodiment of the present application.

Fig. 3 is a schematic structural diagram of a detachable part of the elastic backpack device provided by the embodiment of the application.

Fig. 4 is an exploded view of the box according to the embodiment of the present application.

Fig. 5 is a perspective view of a box provided in an embodiment of the present application.

Fig. 6 is a schematic structural diagram of a male buckle provided in an embodiment of the present application.

FIG. 7 is a schematic view of the connection of the cushioning assembly to the connection plate.

Figure 8 is a schematic view of the connection of the cushioning assembly to the backpack mounting plate.

Reference numerals: 1. a combat vest; 2. a back plate; 3. a connecting plate; 31. a fixed pulley mounting hole; 32. a hollow-out section; 4. a backpack mounting plate; 41. a movable pulley mounting hole; 5. binding bands; 6. a female buckle; 61. a female buckle body; 62. a jack; 63. a clamping block; 63a and a semicircular notch; 64. a slot; 65. a female buckle mounting hole; 65a, mounting screws for the female buckle; 66. blocking strips; 67. a stop strip mounting hole; 67a, mounting screws for the stop bars; 68. a spring; 7. a male buckle; 71. a male buckle seat; 72. connecting columns; 73. a male buckle head; 74. a male buckle mounting hole; 8. pulling a rope; 9. a handle; 10. a chute; 11. a guide rail; 12. a fixed pulley; 13. an elastic cord; 14. a movable pulley.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted" and "connected" are to be interpreted broadly, e.g., as being either fixedly connected, detachably connected, or integrally connected; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the description of the present application, it is to be understood that the terms "upper", "lower", "side", "front", "rear", and the like indicate orientations or positional relationships based on installation, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.

It should be noted that the same reference numerals are used to denote the same components or parts in the embodiments of the present application, and for the same parts in the embodiments of the present application, only one of the parts or parts may be given the reference numeral, and it should be understood that the reference numerals are also applicable to the other same parts or parts.

The embodiment of the application provides an elasticity bears device and elasticity knapsack, has modular structure, and the knapsack loading and unloading is got up very convenient high-efficient, can practice thrift the precious wartime time of soldier.

The embodiment of the application firstly provides an elastic bearing device. Fig. 1 is a schematic structural view of an elastic backpack device provided in an embodiment of the present application. Fig. 2 is a schematic structural view of a wearing part of the elastic backpack device provided by the embodiment of the present application. Fig. 3 is a schematic structural diagram of a detachable part of the elastic backpack device provided by the embodiment of the application.

As shown in fig. 1 to 3, the elastic backpack device provided in the embodiments of the present invention is used for carrying a heavy object such as a backpack on a human body, and includes a back plate 2, a connecting plate 3, and a backpack mounting plate 4. Wherein the content of the first and second substances,

the back panel 2 is intended to be worn and supported on the back of a human body. In the embodiment of the application, the elastic backpack device further comprises a combat vest 1, and the back plate 2 is fixed on the combat vest 1, worn by the combat vest 1 and supported on the back of the human body. Alternatively, in other embodiments, the back panel 2 may be worn on the back of the human body by other means such as a harness or a belt, which is not limited in the present application.

The connecting plate 3 is detachably mounted on the back plate 2 through a plurality of groups of eye-splice components.

Knapsack mounting panel 4 is used for the fixed mounting knapsack, and knapsack mounting panel 4 is movably installed on connecting plate 3 through linear slide rail set spare and buffering subassembly, and linear slide rail set spare is used for the guide knapsack mounting panel 4 reciprocates relatively connecting plate 3, and the buffering subassembly is used for reducing the vibration range of knapsack mounting panel 4 in vertical direction.

According to the elasticity backpack device that this application embodiment provided, through the modularized design, connecting plate 3 is installed on backplate 2 through multiunit eye-splice subassembly detachable, and this connecting plate 3 is connected with knapsack mounting panel 4, installs the knapsack on the knapsack mounting panel 4 for the knapsack loading and unloading is got up very convenient high-efficient, can practice thrift the precious wartime of soldier, and the soldier of being convenient for puts into combat fast.

In addition, knapsack mounting panel 4 is movably installed on connecting plate 3 through linear slide rail set spare and buffering subassembly, then at human knapsack load walking motion's in-process, linear slide rail set spare guide knapsack is along vertical direction reciprocating motion, reduce the vibration range that knapsack reciprocating motion produced from top to bottom through buffering subassembly, make operation undershirt 1 obtain good buffering to the impact force of human shoulder, alleviate the knapsack to the oppression power of shoulder, avoid the knapsack to cause fatigue damage to shoulder muscle, and the low limbs are pedaled the land force peak value to ground and are reduced.

In the embodiment of the present application, the connecting plate 3 is detachably mounted on the back plate 2 through a plurality of sets of plug-in components, for example, 4 sets of plug-in components in fig. 2, and 4 sets of plug-in components are respectively disposed at 4 corners of the rectangular back plate 2, so that the connecting plate 3 can be reliably mounted on the back plate 2. In other embodiments, the two can be connected by more or fewer groups (e.g., 3 or 6 groups) of buckle assemblies, which is not limited in this application.

The insert buckle assembly provided by the embodiment of the application comprises a female buckle 6 and a male buckle 7 which are mutually inserted and matched. The buckle assembly provided by the embodiments of the present application will be further described with reference to the accompanying drawings. Fig. 4 is an exploded view of the box 6 according to the embodiment of the present application. Fig. 5 is a perspective view of the female buckle 6 provided in the embodiment of the present application. Fig. 6 is a schematic structural diagram of the male buckle 7 according to an embodiment of the present application.

As shown in fig. 2 to 6, in the embodiment of the present application, the female buckle 6 is installed on the back plate 2, the male buckle 7 is installed on the connecting plate 3, the female buckle 6 includes a latch 63 for locking the male buckle 7, the latch 63 is connected to the pull cord 8, and the latch 63 is pulled by the pull cord 8 to release the locking of the latch 63 on the male buckle 7.

Specifically, as shown in fig. 4, a plurality of female buckle mounting holes 65 (e.g., two female buckles in the figure) are opened on the female buckle 6, and a plurality of female buckle mounting screws 65a correspondingly penetrate into the female buckle mounting holes 65 and are fastened and connected with the back plate 2, so as to mount the plurality of female buckles 6 on the back plate 2.

Similarly, a plurality of pin mounting holes 74 (for example, one on the left and right in the figure) are opened on the pin 7, and pin mounting screws are correspondingly inserted into the pin mounting holes 74 and are fastened to the connecting plate 3, so that the plurality of pins 7 are mounted on the connecting plate 3. A plurality of box 6 and a plurality of pin thread 7 one-to-one arrange, can realize the grafting cooperation of the two, and then can realize dismantling of backplate 2 and connecting plate 3 and connect.

According to the elasticity device of bearing back that this application embodiment provided, when the knapsack was born to needs, the soldier can at first easily wear operation undershirt 1 to on being fixed in knapsack mounting panel 4, later correspond male buckle 7 by another companion and insert in the box 6, after male buckle 7 inserted in the box 6, fixture block 63 can lock male buckle 7, prevents to walk in-process connecting plate 3 and takes place to drop. The tail end of the clamping block 63 is connected with the pull rope 8, when the backpack needs to be detached, a user can pull the clamping block 63 backwards through the pull rope 8 to release the locking of the male buckle 7, so that the connecting plate 3 can be taken down from the back plate 2, and a soldier can take the backpack down conveniently.

As shown in fig. 2, one end of the pull rope 8 is connected to a plurality of (e.g. 4 in fig. 2) latch blocks 63 corresponding to the plurality of sets of eye-splice assemblies, and the other end is connected to the pull handle 9. Through the arrangement, a user can conveniently pull the clamping blocks 63 simultaneously, and the disassembly efficiency of the backpack can be improved.

Alternatively, in other embodiments, the positions of the two can be exchanged, the male buckle 7 is installed on the back plate 2, and the female buckle 6 is installed on the connecting plate 3, so that the detachable connection between the back plate 2 and the connecting plate 3 can be realized.

As shown in fig. 2-6, the male buckle 7 includes a male buckle seat 71, a connection post 72 vertically disposed on the male buckle seat 71, and a male buckle 73 connected to the front end of the connection post 72, wherein the diameter of the male buckle 73 is larger than that of the connection post 72, so as to form a fastening groove between the male buckle 73 and the male buckle seat 71, so as to facilitate the fastening block 63 to be fastened to lock the male buckle 7.

The female buckle 6 comprises a female buckle body 61, an insertion hole 62 for inserting the male buckle head 73 is formed in the female buckle body 61, and when the male buckle head 73 is inserted into the insertion hole 62, the clamping block 63 is elastically clamped in the clamping groove to lock the male buckle 7.

Further, a slot 64 vertically intersecting with the insertion hole 62 is formed in the female buckle body 61, and the latch 63 is movably disposed in the slot 64 through a spring 68. When the male snap 73 is not inserted, the front end of the latch 63 extends into the insertion hole 62.

A semicircular notch 63a is formed at the front end of the fixture block 63, when the male buckle head 73 is inserted into the insertion hole 62, the male buckle head 73 is extruded and passes through the semicircular notch 63a, the fixture block 63 is extruded and moves backwards, and when the male buckle head 73 is completely inserted, the semicircular notch 63a is inserted into the clamping groove to abut against and surround the connection column 72 under the action of the spring 68. At this time, since the side wall of the latch 63 abuts against the rear end surface of the male buckle head 73, the male buckle 7 is locked and cannot be removed from the female buckle 6.

Optionally, to facilitate the insertion fit, the front end of the male buckle head 73 may be provided with a transition chamfer.

Optionally, in order to facilitate the insertion fit, the front end of the latch 63 may also be provided with a transition chamfer.

Alternatively, to facilitate a plug fit, receptacle 62 may be a tapered bore.

The rear end of the latch 63 is connected to the pull cord 8. When the cord 8 is pulled, the latch 63 moves backward, retreats from the latch groove, and thus the male buckle 7 can be unlocked.

As shown in fig. 4 and 5, the latch 63 has a rectangular frame-like structure, a stop strip 66 fixedly connected to the female buckle body 61 is provided in the rectangular frame-like structure, and a spring 68 is provided between the front end of the rectangular frame-like structure and the stop strip 66.

That is, the latch 63, the stop 66 and the spring 68 are disposed in the slot 64, and the stop 66 and the spring 68 are disposed inside the latch 63, the stop 66 is further fixedly connected to the female buckle body 61, and the spring 68 is elastically disposed between the latch 63 and the stop 66. Through above setting, can carry out accurate location to fixture block 63, realize reliable elastic connection between fixture block 63 and box body 61 to can be connected of rear end portion and stay cord 8 of fixture block 63. And then can realize that backplate 2 and connecting plate 3 are reliable, the high efficiency can be dismantled and be connected, make things convenient for the installation, the uninstallation of knapsack, the soldier of being convenient for drops into the battle fast.

As shown in fig. 5 and 6, the box body 61 is further provided with a stopper mounting hole 67, and a stopper mounting screw 67a is inserted into the stopper mounting hole 67 to fix the stopper 66 on the box body 61.

As shown in fig. 3 and 7, a plurality of hollow portions 32 are formed inside the connecting plate 3 to reduce the weight of the connecting plate 3. For example, the shape of the hollow portion may be rectangular, and a plurality of hollow portions 32 may be arranged side by side and equidistantly provided on both left and right sides of the connecting plate 3.

As shown in fig. 1 and 3, the outer side surface of the backpack mounting plate 4 is provided with a binding band 5 to facilitate the fixing and mounting of the backpack. The straps 5 may include a plurality of vertical straps and transverse straps to achieve secure mounting and securement of the backpack.

In the embodiment of the present application, the backpack mounting plate 4 is movably mounted on the connecting plate 3 through a linear slide rail assembly and a buffer assembly to achieve elastic connection therebetween. The slide rail assembly and the buffer assembly will be further described with reference to the accompanying drawings.

As shown in fig. 7 and 8, in the embodiment of the present application, the linear guideway assembly includes a sliding chute 10 and a guide rail 11, and the guide rail 11 is slidably disposed in the sliding chute 10. The linear sliding rail assemblies comprise two groups and are correspondingly arranged on the left side and the right side of the connecting plate 3. The sliding groove 10 is fixedly arranged on the connecting plate 3, the guide rail 11 is correspondingly arranged on the backpack mounting plate, and the guide rail 11 can slide up and down in the sliding groove 10, so that the backpack mounting plate 4 is guided to move up and down relative to the connecting plate 3, and the movement in other directions is prevented.

Optionally, in other embodiments, the linear guideway assembly may also include more (e.g., 3) or less (e.g., 1) groups, which is not limited in this application.

Alternatively, in other embodiments, the positions of the sliding groove 10 and the guide rail 11 can be reversed, and the sliding groove 10 can be arranged on the backpack mounting plate 4, and the guide rail 11 can be arranged on the connecting plate 3, which can also achieve the above-mentioned sliding orientation effect.

As shown in fig. 7 and 8, the buffer assembly includes a plurality of fixed pulleys 12 (5 in the present embodiment), an elastic cord 13 in an endless belt shape and wound around the plurality of fixed pulleys 12, and at least one movable pulley 14 (two in the present embodiment) suspended from the elastic cord 13; a plurality of fixed pulleys 12 are rotatably arranged on the connecting plate 3, and at least one movable pulley 14 is rotatably arranged on the backpack mounting plate 4.

In the present application, "fixed" in "fixed pulley" and "movable" in "movable pulley" are both referred to the connection plate 3. The fixed pulley 12 is rotatably provided on the link plate 3 and cannot be displaced with respect to the link plate 3, and is therefore referred to as a "fixed pulley". The movable pulley 14 is rotatably provided on the backpack attachment plate 4, and is further suspended (hooked) on the elastic cord 13 so as to be displaceable with respect to the attachment plate 3 to achieve an elastic cushioning effect, and is therefore referred to as a "movable pulley".

In this embodiment, the elastic rope 13 in the shape of a circular strip is wound around the outer periphery of the plurality of fixed pulleys 12 and can rotate, and when the movable pulley 14 moves up and down, the elastic force on the elastic rope 13 is uniformly dispersed in each part of the elastic rope 13, so that the elastic buffering effect is improved, and the service life of the elastic rope 13 can be prolonged.

When the knapsack reciprocated along vertical direction, elastic rope 13 can be stretched, and the impulse part of its production in the twinkling of an eye is offset by elastic rope 13, plays good cushioning effect, reduces the knapsack along vertical direction reciprocating motion's amplitude, makes the instantaneous impulse of knapsack that human shoulder bore reduce by a wide margin, avoids operation undershirt 1 to cause strong impact force to human shoulder, improves the comfort level of knapsack.

Further, as shown in fig. 7, at least one fixed pulley 12 is adjustably mounted on the connecting plate 3 to change the initial preload of the elastic cord 13. Different load weights are needed under different situations, and on one hand, the initial pretightening force of the elastic rope 13 can be flexibly adjusted according to the weight of the backpack, so that the backpack is always suspended at a proper height. On the other hand, also can conveniently pull down and change elastic rope 13, can satisfy the user demand of different load weight according to the elastic rope 13 of the different elastic force of the weight installation of knapsack for buffering effect is better.

As shown in fig. 7, in the embodiment of the present application, the number of the fixed pulleys 12 is 5, and more fixed pulley mounting holes 31 may be provided in the connecting plate 3, so as to facilitate adjustment of the mounting position of the fixed pulley 12. For example, a plurality of fixed pulley mounting holes 31 are formed at intervals on the center line of the connecting plate 3, and at this time, the lowermost fixed pulley 12 can be mounted at a position that is higher or lower than the current mounting position as required, so that the initial pretightening force of the elastic rope 13 can be adjusted.

As shown in fig. 8, the movable pulleys 14 are height-adjustably mounted on the backpack mounting plate 4. With the above arrangement, the hanging height of the backpack can be controlled within an appropriate range by adjusting the mounting height of the movable sheave 14. Specifically, the backpack mounting plate 4 is provided with a plurality of sets of movable pulley mounting holes 41 at intervals along the height direction, and two movable pulleys 14 can be mounted at appropriate positions according to requirements.

In a second aspect, the embodiment of the present application further provides an elastic backpack, which includes a backpack body, and an elastic carrying device provided in any of the foregoing embodiments for carrying the backpack body on a human body.

Because the elastic backpack adopts the elastic carrying device provided by the embodiment, the elastic backpack also has the technical effect corresponding to the elastic carrying device, and the description is omitted here.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.