阅读说明：本技术 新型省力浮动背包 (Novel labor-saving floating backpack ) 是由 党伟平 于 2021-07-28 设计创作，主要内容包括：本发明公开了一种新型省力浮动背包,包括穿戴装置,穿戴装置连接有固定装置,固定装置连接有浮动装置,浮动装置连接有包体。在穿戴背包时,由于人体的运动幅度较大,导致背包随穿戴者一同晃动,这种剧烈的晃动将导致穿戴者受到较大的冲击以及强烈的不适感,现有一些背包虽能减小自身晃动幅度,却不能适应不同的负载,也不能随时取消浮动功能。本发明通过弹力绳的伸缩特性来抵消或减小包体的上下运动幅度,使包体的水平高度保持在一个极小或者不变的位置来减小惯性冲击；通过负载调节机构,穿戴者可以调整弹力绳的张紧程度,从而与不同的负载匹配平衡,通过悬停锁定机构,穿戴者可以随时锁定包体高度,取消浮动功能,满足不同的穿戴需求。(The invention discloses a novel labor-saving floating backpack which comprises a wearing device, wherein the wearing device is connected with a fixing device, the fixing device is connected with a floating device, and the floating device is connected with a backpack body. When wearing the knapsack, because human motion range is great, lead to the knapsack to rock along with the wearer, this kind of violent rocking will lead to the wearer to receive great impact and strong uncomfortable sense, and some packsacks of current can reduce self rocking range, but can not adapt to different loads, also can not cancel the function of floating at any time. According to the invention, the vertical movement amplitude of the bag body is offset or reduced through the telescopic characteristic of the elastic rope, so that the horizontal height of the bag body is kept at a minimum or unchanged position to reduce the inertia impact; through load adjustment mechanism, the person of wearing can adjust the tensioning degree of stretch cord to match the balance with the load of difference, through locking mechanical system that hovers, the person of wearing can lock the inclusion height at any time, cancels the function of floating, satisfies the wearing demand of difference.)

1. The utility model provides a novel laborsaving knapsack that floats which characterized in that: the bag comprises a wearing device (1), wherein the wearing device (1) is connected with a fixing device (2), the fixing device (2) is connected with a floating device (3), and the floating device (3) is connected with a bag body (4);

the fixing device (2) comprises a fixing bottom plate (21), a vertical roller mechanism (22) and a transverse roller mechanism (23), the vertical roller mechanism (22) and the transverse roller mechanism (23) are identical in structure, the vertical roller mechanism (22) is provided with two rollers (221) capable of freely rotating, the rollers (221) are installed in parallel, and gaps exist among the rollers (221);

the fixed bottom plate (21) is provided with two L-shaped side plates (211), a main cross beam (214) and a secondary cross beam (213) which are used for connecting the side plates (211), the middle of the main cross beam (214) and the secondary cross beam (213) is connected with a keel (215), the keel (215) is provided with a rope hole (2152), the side plates (211) are provided with vertical roller seats (2111) which are symmetrically distributed and used for installing a vertical roller mechanism (22), the side plates (211) are provided with a plurality of hovering holes (2112), and the secondary cross beam (213) is provided with a transverse roller seat (2132) used for installing a transverse roller mechanism (23);

the floating device (3) comprises a floating bottom plate (32), a rope wheel mechanism (31) arranged through the floating bottom plate (32), a hovering locking mechanism (33) arranged at the bottom of one side of the floating bottom plate (32) and a load adjusting mechanism (34) arranged at the bottom of the other side of the floating bottom plate (32);

l-shaped side guide plates (327) are arranged on two sides of the floating bottom plate (32), rollers (221) of the vertical roller mechanism (22) are distributed on two sides of the side guide plates (327), a vertical guide plate (326) is arranged in the middle of the floating bottom plate (32), and the rollers (221) of the transverse roller mechanism (23) are distributed on two sides of the vertical guide plate (326);

the rope wheel mechanism (31) comprises an elastic rope (311) and a fixed pulley block (312), the fixed pulley block (312) is respectively positioned at the upper part and the lower part of the floating bottom plate (32), one end of the elastic rope (311) is fixedly connected with the rope hole (2152), the other end of the elastic rope (311) is connected with the floating bottom plate (32), and the elastic rope (311) is wound between the fixed pulley block (312) in a reciprocating manner;

the hovering locking mechanism (33) comprises a lock seat (332) and a lock cylinder (331), the lock seat (332) is rotatably connected with respect to the floating bottom plate (32), one end of the lock seat (332) can be matched with the hovering hole (2112), the lock seat (332) is in a barb shape, the lock seat (332) is vertically installed, the barb of the lock seat (332) is inward, the lock seat (332) is provided with a locking hole (3321), the lock cylinder (331) is rotatably connected with respect to the floating bottom plate (32), and the lock cylinder (331) is located on the outer side of the lock seat (332);

the load adjusting mechanism (34) comprises a rotating wheel (345), an adjusting handle (341), a ratchet wheel (342), a first pawl (343), a second pawl (346) and a return spring (344), the elastic rope (311) is wound from the rotating wheel (345) and then is led out, the adjusting handle (341) is connected with the ratchet wheel (342), and the first pawl (343) is connected with the return spring (344).

2. The new labor saving floating backpack of claim 1, wherein: reinforcing ribs (2131) are arranged on two sides of the main beam (214), the secondary beam (213) and the keel (215), strip-shaped lightening holes (2141) are formed in the side plates (211), the main beam (214) and the keel (215), triangular rib plates (2151) are arranged on the keel (215), and the triangular rib plates (2151) are connected with the rope holes (2152).

3. The new labor saving floating backpack of claim 2, wherein: the utility model discloses a curb plate, including curb plate (211), main crossbeam (214), inferior crossbeam (213), reinforcing plate (212), there is large tracts of land between main crossbeam (214), inferior crossbeam (213) and reinforcing plate (212), main crossbeam (214) are located the both ends of curb plate (211) and are the symmetric distribution, inferior crossbeam (213) are located the well upper portion and the well lower part of curb plate (211) respectively and are the symmetric distribution, the middle part of curb plate (211) is connected with twice symmetry setting, there is large tracts of land between main crossbeam (214), inferior crossbeam (213) and reinforcing plate (212) and leaves whitewashed.

4. The novel labor-saving floating backpack as set forth in claim 3, wherein: the floating bottom plate (32) is provided with a plurality of square lightening holes (325), the bottom of one side of the floating bottom plate (32) is provided with a hovering locking mounting seat (322), the bottom of the other side of the floating bottom plate is provided with a load adjusting mounting seat (321), and the floating bottom plate (32) is provided with a pulley seat (323) for mounting a fixed pulley block (312).

5. The novel labor-saving floating backpack as set forth in claim 4, wherein: the floating bottom plate (32) is provided with a bent pipe (324) for regulating the wire outlet track of the elastic rope (311).

6. The novel labor-saving floating backpack as set forth in claim 5, wherein: the lock core (331) is equipped with pivot (3311) and turning handle (3312), lock seat (332) is the falciform, turning handle (3312) are equipped with friction texture (33121), the front end of turning handle (3312) is equipped with guide arc (33122), the front end of lock seat (332) is the V font.

7. The novel labor-saving floating backpack as set forth in claim 6, wherein: the ratchet wheel (342) is provided with a matching hole (3421), the rotating wheel (345) is provided with a positioning transmission column (3451) which can be matched with the matching hole (3421), and the ratchet wheel (342) and the rotating wheel (345) are connected in a matching way through the matching hole (3421) and the positioning transmission column (3451).

8. The novel labor-saving floating backpack as set forth in claim 7, wherein: a convex strip (3452) is arranged inside the rotary groove of the rotary wheel (345).

9. The novel labor-saving floating backpack as set forth in claim 8, wherein: the adjusting handle (341) comprises a long handle and a rotating disc connected with the long handle.

Technical Field

The invention belongs to the technical field of backpacks, and particularly relates to a novel labor-saving floating backpack.

Background

The backpack is a tool for loading articles in daily life, can store the articles together, is convenient to carry, is a necessary tool in daily life, and has the advantages of simple structure and convenience in operation.

In field activities or other scenarios, the backpack swings with the wearer due to the large amplitude of the wearer's motion, and such a violent swing would result in a large impact and a strong discomfort to the wearer.

Some current backpacks can reduce the range of self-shaking, but can not adapt to different loads, also can not cancel the function of reducing shaking at any time, because in different wearing environments, the wearer may need different functions, although the function of reducing shaking is beneficial under most circumstances, the function of reducing shaking hinders the wearer at some times, thereby providing a floating backpack which can reduce the range of self-shaking of the backpack, adapt to different loads and cancel the function of reducing shaking at any time.

Disclosure of Invention

In view of the problems raised by the above background art, the present invention is directed to: aims to provide a novel labor-saving floating backpack.

In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:

the novel labor-saving floating backpack comprises a wearing device, wherein the wearing device is connected with a fixing device, the fixing device is connected with a floating device, and the floating device is connected with a backpack body;

the fixing device comprises a fixing bottom plate, a vertical roller mechanism and a transverse roller mechanism, the vertical roller mechanism and the transverse roller mechanism are identical in structure, the vertical roller mechanism is provided with two rollers capable of freely rotating, the rollers are installed in parallel, and gaps exist among the rollers;

the fixed bottom plate is provided with two L-shaped side plates, a main cross beam and a secondary cross beam, the main cross beam and the secondary cross beam are used for connecting the side plates, a keel is connected between the main cross beam and the secondary cross beam, the keel is provided with rope holes, the side plates are provided with vertical roller seats which are symmetrically distributed and used for installing vertical roller mechanisms, the side plates are provided with a plurality of hovering holes, and the secondary cross beam is provided with a transverse roller seat used for installing a transverse roller mechanism;

the floating device comprises a floating bottom plate, a rope wheel mechanism arranged through the floating bottom plate, a hovering locking mechanism arranged at the bottom of one side of the floating bottom plate and a load adjusting mechanism arranged at the bottom of the other side of the floating bottom plate;

the two sides of the floating bottom plate are provided with L-shaped side guide plates, the rollers of the vertical roller mechanism are distributed on the two sides of the side guide plates, the middle part of the floating bottom plate is provided with a vertical guide plate, and the rollers of the transverse roller mechanism are distributed on the two sides of the vertical guide plate;

the rope wheel mechanism comprises an elastic rope and a fixed pulley block, the fixed pulley block is respectively positioned at the upper part and the lower part of the floating bottom plate, one end of the elastic rope is fixedly connected with the rope hole, the other end of the elastic rope is connected with the floating bottom plate, and the elastic rope is wound between the fixed pulley blocks in a reciprocating manner;

the hovering locking mechanism comprises a lock seat and a lock cylinder, the lock seat is rotationally connected with the floating bottom plate, one end of the lock seat can be matched with the hovering hole, the lock seat is in a barb shape, the lock seat is vertically installed, a barb of the lock seat faces inwards, the lock seat is provided with the locking hole, the lock cylinder is rotationally connected with the floating bottom plate, and the lock cylinder is located on the outer side of the lock seat;

the load adjusting mechanism comprises a rotating wheel, an adjusting handle, a ratchet wheel, a first pawl, a second pawl and a return spring, the elastic rope is wound by the rotating wheel and then is led out, the adjusting handle is connected with the ratchet wheel, and the first pawl is connected with the return spring.

Further inject, the both sides of main beam, secondary beam and fossil fragments all are equipped with the strengthening rib, curb plate, main beam and fossil fragments all are equipped with the bar lightening hole, fossil fragments are equipped with triangle-shaped gusset, triangle-shaped gusset links to each other with the rope hole, and such structural design strengthens the structural strength of main beam, secondary beam and fossil fragments through the strengthening rib, reduces PMKD's weight through the bar lightening hole to alleviate wearing personnel's heavy burden, strengthen the structural strength in rope hole through the triangle-shaped gusset.

Further inject, the main beam is located the both ends of curb plate and is the symmetric distribution, inferior crossbeam is located the well upper portion and the well lower part of curb plate respectively and is the symmetric distribution, the middle part of curb plate is connected with the reinforcing plate that twice symmetry set up, there is the blank of large tracts of land between main beam, inferior crossbeam and the reinforcing plate, such structural design, through the distribution structure of main beam, inferior crossbeam and reinforcing plate symmetry formula, makes PMKD's structure more reasonable, and the atress is more even, and bearing capacity is better, and the blank of large tracts of land is handled for PMKD has only kept necessary bearing structure, has saved unnecessary structure, further from structural distribution, has alleviateed PMKD's weight.

Further inject, the floating bottom plate is equipped with a plurality of square lightening holes, floating bottom plate one side bottom is equipped with the locking mount pad that hovers, and the opposite side bottom is equipped with the load and adjusts the mount pad, the floating bottom plate is equipped with the pulley seat that is used for installing the fixed pulley group, and such structural design lightens the weight of floating bottom plate through square lightening hole, when avoiding floating bottom plate beat from top to bottom, because the inertia that the weight is too big leads to is too big, provides the erection fixed position for load adjustment mechanism, locking mechanism and fixed pulley group that hovers respectively through load adjustment mount pad, locking mount pad and pulley seat that hovers.

Further inject, floating bottom plate is equipped with the return bend that is used for standardizing the stretch cord orbit of being qualified for the next round of competitions, and such structural design is convenient for standardize the direction of stretch cord through the return bend to standardize the atress direction of stretch cord, avoid stretch cord crooked, produce too big rocking.

Further inject, the lock core is equipped with pivot and turning handle, the lock seat is sickle, the turning handle is equipped with the friction texture, the front end of turning handle is equipped with the direction arc, the front end of lock seat is the V font, and such structural design skids when avoiding holding the turning handle through the friction texture, through the direction arc of turning handle front end, makes the turning handle get into the locking hole more easily, locks the lock seat, and the front end through designing the lock seat is the V font for the lock seat gets into the hole of hovering more easily, and then makes floating bottom plate and PMKD relatively fixed, reaches the purpose of locking floating installation.

Further inject, the ratchet is equipped with the mating holes, rotate the wheel be equipped with can with the location transmission post of mating holes, the ratchet carries out the accordant connection through mating holes and location transmission post with rotating the wheel, such structural design is convenient for accomplish the power transmission of ratchet and rotation wheel through mating holes and location transmission post.

Further inject, the rotating groove inside of the rotating wheel is provided with a convex strip, and the structural design increases the friction coefficient between the elastic rope and the rotating wheel through the convex strip.

Further, the adjusting handle comprises a long handle and a rotating disc connected with the long handle, and the structure is designed to be convenient for a user to hold through the long handle.

The invention has the beneficial effects that:

1. the up-and-down movement amplitude of the bag body is counteracted or reduced through the elastic expansion characteristic of the elastic rope, so that the horizontal height of the bag body is kept at a position with little or no change to achieve the purpose of reducing the inertia impact force, thereby reducing the impact force of people when the backpack is used for walking or running with load, and achieving the effect of saving labor;

2. be provided with load adjustment mechanism, the tensioning degree that the wearing person can adjust the stretch cord through load adjustment mechanism to match the balance with the load of difference, be provided with locking mechanical system that hovers, the wearing person can lock the height of inclusion at any time, makes inclusion and floating installation and human relatively fixed, satisfies the wearing demand of various differences.

Drawings

The invention is further illustrated by the non-limiting examples given in the accompanying drawings;

FIG. 1 is a schematic structural view of an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 2 is a schematic diagram of the coupling of the fixing device and the floating device in the novel labor-saving floating backpack embodiment of the present invention;

FIG. 3 is a schematic structural view of a fixing device in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 4 is a schematic structural view of a vertical roller mechanism in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 5 is a schematic structural view of a retaining floor in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 6 is a schematic structural view of a floating device in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 7 is a schematic structural view of a floating bottom plate in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 8 is a schematic structural view of a rope pulley mechanism in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 9 is a schematic structural view of a hovering locking mechanism in an embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 10 is a schematic view of the structure of the lock seat in the embodiment of the novel labor-saving floating backpack of the present invention;

FIG. 11 is a schematic structural view of the load-adjusting mechanism of the novel labor-saving floating backpack with the rotatable wheels removed;

FIG. 12 is a schematic view of the structure of the rotating wheels of the novel labor-saving floating backpack;

the main element symbols are as follows:

a wearable device 1;

the device comprises a fixing device 2, a fixing bottom plate 21, side plates 211, vertical roller seats 2111, hovering holes 2112, reinforcing plates 212, secondary beams 213, reinforcing ribs 2131, transverse roller seats 2132, a main beam 214, strip-shaped lightening holes 2141, keels 215, triangular rib plates 2151, rope holes 2152, vertical roller mechanisms 22, rollers 221 and transverse roller mechanisms 23;

the device comprises a floating device 3, a rope pulley mechanism 31, an elastic rope 311, a fixed pulley block 312, a floating bottom plate 32, a load adjusting installation seat 321, a hovering locking installation seat 322, a pulley seat 323, an elbow 324, a square lightening hole 325, a vertical guide plate 326, a side guide plate 327, a hovering locking mechanism 33, a lock cylinder 331, a rotating shaft 3311, a rotating handle 3312, a friction texture 33121, a guide arc 33122, a lock seat 332, a locking hole 3321, a load adjusting mechanism 34, an adjusting handle 341, a ratchet 342, a matching hole 3421, a first pawl 343, a return spring 344, a rotating wheel 345, a positioning transmission column 3451, a convex strip 3452 and a second pawl 346;

and 4. the bag body.

Detailed Description

In order that those skilled in the art can better understand the present invention, the following technical solutions are further described with reference to the accompanying drawings and examples.

As shown in fig. 1-12, the novel labor-saving floating backpack of the present invention comprises a wearing device 1, the wearing device 1 is connected with a fixing device 2, the fixing device 2 is connected with a floating device 3, and the floating device 3 is connected with a backpack body 4;

the fixing device 2 comprises a fixing bottom plate 21, a vertical roller mechanism 22 and a transverse roller mechanism 23, the vertical roller mechanism 22 and the transverse roller mechanism 23 are identical in structure, the vertical roller mechanism 22 is provided with two rollers 221 capable of freely rotating, the rollers 221 are installed in parallel, and gaps exist among the rollers 221;

the fixed bottom plate 21 is provided with two L-shaped side plates 211, a main beam 214 and a secondary beam 213 which are used for connecting the side plates 211, a keel 215 is connected between the main beam 214 and the secondary beam 213, the keel 215 is provided with a rope hole 2152, the side plates 211 are provided with vertical roller seats 2111 which are symmetrically distributed and used for installing the vertical roller mechanisms 22, the side plates 211 are provided with a plurality of hovering holes 2112, and the secondary beams 213 are provided with transverse roller seats 2132 used for installing the transverse roller mechanisms 23;

the floating device 3 comprises a floating bottom plate 32, a rope wheel mechanism 31 arranged through the floating bottom plate 32, a suspension locking mechanism 33 arranged at the bottom of one side of the floating bottom plate 32 and a load adjusting mechanism 34 arranged at the bottom of the other side of the floating bottom plate 32;

l-shaped side guide plates 327 are arranged on two sides of the floating bottom plate 32, rollers 221 of the vertical roller mechanism 22 are distributed on two sides of the side guide plates 327, a vertical guide plate 326 is arranged in the middle of the floating bottom plate 32, and rollers 221 of the transverse roller mechanism 23 are distributed on two sides of the vertical guide plate 326;

the rope wheel mechanism 31 comprises an elastic rope 311 and a fixed pulley block 312, the fixed pulley block 312 is respectively positioned at the upper part and the lower part of the floating bottom plate 32, one end of the elastic rope 311 is fixedly connected with the rope hole 2152, the other end of the elastic rope 311 is connected with the floating bottom plate 32, and the elastic rope 311 is wound between the fixed pulley blocks 312 in a reciprocating manner;

the hovering locking mechanism 33 comprises a lock seat 332 and a lock cylinder 331, the lock seat 332 is rotatably connected with respect to the floating bottom plate 32, one end of the lock seat 332 can be matched with the hovering hole 2112, the lock seat 332 is in a barb shape, the lock seat 332 is vertically installed, the barb of the lock seat 332 faces inwards, the lock seat 332 is provided with a locking hole 3321, the lock cylinder 331 is rotatably connected with respect to the floating bottom plate 32, and the lock cylinder 331 is located on the outer side of the lock seat 332;

the load adjusting mechanism 34 includes a rotating wheel 345, an adjusting handle 341, a ratchet 342, a first pawl 343, a second pawl 346, and a return spring 344, the elastic cord 311 is wound around the rotating wheel 345 and then is led out, the adjusting handle 341 is connected to the ratchet 342, and the first pawl 343 is connected to the return spring 344.

In the implementation of the scheme, a user wears the floating backpack through the wearing device 1, the tightness of the elastic rope 311 is adjusted through the load adjusting mechanism 34 so as to be matched with the load and balanced, the floating device 3 is fixed relative to the fixing device 2 through the hovering locking mechanism 33, the up-and-down movement amplitude of the backpack body 4 is offset or reduced through the elastic expansion characteristic of the elastic rope 311, the horizontal height of the backpack body 4 is kept at a position with minimum or constant change so as to achieve the purpose of reducing the inertia impact force, the impact force of people in the process of advancing the backpack or running with load is reduced, and the labor-saving effect is achieved;

specifically, the rollers 221 in the vertical roller mechanism 22 and the horizontal roller mechanism 23 are respectively distributed on two sides of the side guide 327 and the vertical guide 326, when the floating device 3 starts to move up and down due to the movement of the wearer, the side guide 327 and the vertical guide 326 in the floating device 3 play a role in guiding up and down and normalizing the direction of movement, the vertical roller mechanism 22 and the horizontal roller mechanism 23 in the fixing device 2 make rotational movement, so that the floating device 3 can move up and down relative to the fixing device 2 more easily, in this process, the weight of the bag body 4 and the floating device 3 is transferred to the fixing device 2 through the elastic cord 311 and finally transferred to the body of the wearer through the wearing device 1, when the floating device 3 moves up or down due to the movement of the wearer, the floating device 3 can deviate from the original position, the elastic cord 311 is tightened through the fixed pulley block 312, and after the elastic cord 311 is acted, a counterforce in opposite direction is generated, so that the floating device 3 is maintained in the original position as much as possible, and the severe shaking of the floating device 3 is avoided, and the shaking causes certain impact force to a wearer, especially when the wearer runs or does other severe exercises, the up-and-down impact force causes great obstruction and discomfort to the wearer;

when the bag body 4 carries out loads with different weights, the tightness of the elastic rope 311 can be adjusted through the load adjusting mechanism 34, so as to match and balance the load, specifically, the adjusting handle 341 is rotated to drive the ratchet 342 and the rotating wheel 345 to rotate, because the elastic rope 311 is wound on the rotating wheel 345, the rotation of the rotating wheel 345 can cause the elastic rope 311 to contract or stretch, so as to obtain different elastic forces, the first pawl 343 and the second pawl 346 have the function of enabling the ratchet 342 to be always kept still under the condition that the load adjusting mechanism 34 is not intervened by people, so that the rotating wheel 345 keeps still, the rotating wheel 345 can not rotate because of the up-and-down floating of the floating device 3, so that the elastic rope 311 is always kept at the required tightness and has the required elastic force, the return spring 344 has the function of enabling the first pawl 343 to be always attached to the ratchet 342, after each time the first pawl 343 is bounced off, the first pawls 343 are all reset under the action of the return springs 344, which gives tactile feedback of a rotation angle to the wearer and simultaneously prevents the wearer from rotating an excessive angle at one time;

when the wearer does not need the function of improving the range, the floating device 3 is fixed relative to the fixing device 2 by the hovering locking mechanism 33, specifically, one end of the lock seat 332 is placed in the hovering hole 2112, the lock seat 332 is installed on the floating device 3, the lock cylinder 331 is arranged on the fixing device 2, the hovering hole 2112 is hooked by the inverted hook-shaped lock seat 332, so that the floating device 3 cannot move up and down, the lock cylinder 331 can be inserted into the locking hole 3321, so that the lock seat 332 is kept fixed, the floating device 3 is always in a locked state, a plurality of hovering holes 2112 are distributed in the vertical direction, and therefore the floating device 3 can be fixed at different height positions to meet different requirements of the wearer.

Preferably, reinforcing ribs 2131 are arranged on two sides of the main beam 214, the secondary beam 213 and the keel 215, strip-shaped lightening holes 2141 are arranged on the side plates 211, the main beam 214 and the keel 215, triangular rib plates 2151 are arranged on the keel 215, and the triangular rib plates 2151 are connected with the rope holes 2152, so that the structural strength of the main beam 214, the secondary beam 213 and the keel 215 is enhanced through the reinforcing ribs 2131, the weight of the fixed bottom plate 21 is reduced through the strip-shaped lightening holes 2141, the load of a wearer is reduced, and the structural strength of the rope holes 2152 is enhanced through the triangular rib plates 2151. In fact, other structural shapes that enhance the structural strength of the primary and secondary beams 214, 213, rope holes 2152, and keel 215, as well as other structural shapes that reduce the weight of the fixed base 21, may be specifically contemplated as the case may be.

Preferably, the main beam 214 is located at the two ends of the side plate 211 and is symmetrically distributed, the secondary beam 213 is located at the middle upper part and the middle lower part of the side plate 211 and is symmetrically distributed, the middle part of the side plate 211 is connected with two reinforcing plates 212 symmetrically arranged, a large area of blank is reserved between the main beam 214 and the secondary beam 213 and the reinforcing plates 212, the structure of the fixing bottom plate 21 is more reasonable through the main beam 214, the secondary beam 213 and the symmetrical distribution structure of the reinforcing plates 212, the stress is more uniform, the load capacity is better, the blank is reserved in a large area, the fixing bottom plate 21 only reserves a necessary bearing structure, unnecessary structures are omitted, further, the structural distribution is improved, and the weight of the fixing bottom plate 21 is reduced. In fact, other distribution patterns of the main beams 214, the secondary beams 213 and the reinforcing plates 212, and other configurations for reducing the weight of the fixed base plate 21 may be specifically considered according to the specific situation.

Preferably, the floating bottom plate 32 is provided with a plurality of square lightening holes 325, the bottom of one side of the floating bottom plate 32 is provided with the hovering locking mounting seat 322, the bottom of the other side of the floating bottom plate 32 is provided with the load adjusting mounting seat 321, and the floating bottom plate 32 is provided with the pulley seat 323 for mounting the fixed pulley block 312. In fact, other configurations of the floating floor 32 are specifically contemplated as the case may be.

Preferably, floating bottom plate 32 is provided with elbow 324 for regulating the outlet trajectory of elastic cord 311, and such structural design facilitates regulating the direction of elastic cord 311 through elbow 324, thereby regulating the stress direction of elastic cord 311, and avoiding elastic cord 311 from being skewed and shaking excessively. In fact, other structural shapes that regulate the outlet direction of the bungee cord 311 can be specifically considered according to specific situations.

Preferably, the lock cylinder 331 has a rotation shaft 3311 and a rotation handle 3312, the lock holder 332 is sickle-shaped, the rotation handle 3312 has a friction texture 33121, the front end of the rotation handle 3312 has a guide arc 33122, and the front end of the lock holder 332 is V-shaped, so that the friction texture 33121 prevents the rotation handle 3312 from slipping when being held, the rotation handle 3312 can more easily enter the locking hole 3321 through the guide arc 33122 at the front end of the rotation handle 3312 to lock the lock holder 332, and the front end of the lock holder 332 is V-shaped to make the lock holder 332 more easily enter the hovering hole 2112, so that the floating bottom plate 32 and the fixed bottom plate 21 are relatively fixed, thereby achieving the purpose of locking the floating device 3. In fact, other configurations of the lock cylinder 331 and the lock base 332 may be specifically contemplated according to the specific situation.

Preferably, the ratchet gear 342 is provided with a matching hole 3421, the rotating wheel 345 is provided with a positioning transmission column 3451 which can be matched with the matching hole 3421, and the ratchet gear 342 and the rotating wheel 345 are matched and connected through the matching hole 3421 and the positioning transmission column 3451, so that the structure design is convenient for completing the power transmission of the ratchet gear 342 and the rotating wheel 345 through the matching hole 3421 and the positioning transmission column 3451. In fact, other coupling structures between the ratchet gear 342 and the rotating wheel 345 may be specifically contemplated according to the specific situation.

Preferably, the rotation groove of the rotation wheel 345 is provided with a protruding strip 3452, and the structure design increases the friction coefficient between the elastic rope 311 and the rotation wheel 345 through the protruding strip 3452. In fact, other configurations of the rotatable wheel 345 are specifically contemplated as the case may be.

Preferably, the adjustment handle 341 includes a long handle and a rotating disc connected to the long handle, and the structure is designed to be held by a user through the long handle. In fact, other configurations of the adjustment handle 341 are also contemplated depending on the particular application.

The foregoing embodiments are merely illustrative of the principles of the present invention and its efficacy, and are not to be construed as limiting the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.