Portable seat multifunctional backpack suitable for outdoors

Abstract

The invention relates to the technical field of outdoor equipment, in particular to a portable seat multifunctional backpack suitable for outdoors. The portable seat multifunctional backpack suitable for outdoor use is convenient to carry and has multiple functions, so that the comfort level and convenience of a user in outdoor activities are improved. A portable seat multifunctional knapsack suitable for outdoors comprises a knapsack body, straps and the like, and the straps are connected to the rear sides of the left portion and the right portion of the knapsack body. A fishing rod is pushed into the placing frame, the fishing rod is fixed through a limiting belt, when a fish bites a hook, the front end of the fishing rod moves downwards, the placing frame is driven to rotate downwards, a buckle is separated from a rotating frame, then a first spring rebounds, the placing frame rotates upwards, and the fishing rod is driven to rotate upwards; and the effects that the user can be automatically helped to retract the fishing rod during fishing, and the convenience of outdoor activities of the user is improved are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of outdoor equipment, and particularly to a multi-functional backpack with a portable seat suitable for outdoor use. Background Art

[0002] Outdoor activities are a great way for people to relax and enjoy nature. Whether it is hiking, camping, mountain climbing, picnicking or other activities, it is very important to choose the right equipment and be well-prepared. During outdoor activities, people usually need to use backpacks to carry various items. However, due to the relatively single functions of existing backpacks, they cannot meet the various needs of users during outdoor activities, resulting in low functionality and convenience, which greatly reduces the experience and fun of people's outdoor activities.

[0003] Therefore, a multi-functional backpack with a portable seat suitable for outdoor use has now been developed, which is convenient to carry and has various functions to improve the comfort and convenience of users during outdoor activities. Summary of the Invention

[0004] In order to overcome the shortcomings that existing backpacks have relatively single functions, cannot meet the various needs of users during outdoor activities, have low functionality and convenience, and greatly reduce the experience and fun of people's outdoor activities, the present invention provides a multi-functional backpack with a portable seat suitable for outdoor use, which is convenient to carry and has various functions to improve the comfort and convenience of users during outdoor activities.

[0005] The technical solution of the present invention is: a multi-functional backpack with a portable seat suitable for outdoor use, including a backpack, shoulder straps, a seat mechanism and an auxiliary mechanism. Shoulder straps are connected to the rear sides of the left and right parts of the backpack, and a seat mechanism capable of forming a seat is provided on the backpack, and an auxiliary mechanism capable of automatically retracting a rod is provided on the seat mechanism.

[0006] Furthermore, it further includes a handle, and the handle is connected to the front side of the upper part of the backpack.

[0007] Furthermore, the seat mechanism includes a connecting shaft, a long support frame, a short support frame, an airbag, a sliding frame, a clamping block, a rotating shaft, a backrest cloth, and a first torsion spring. Connecting shafts are connected to both the left and right sides of the lower part of the backpack. A long support frame is rotatably connected between the connecting shafts through a damper. A short support frame is rotatably connected between the connecting shafts through a damper. The short support frame is located inside the long support frame. An airbag is connected between the upper part of the short support frame and the long support frame. A sliding frame is slidably connected to the upper part of the long support frame. Multiple clamping blocks are clamped to both the left and right parts of the long support frame. The clamping blocks are in clamping cooperation with the sliding frame. A rotating shaft is rotatably connected to the upper side of the long support frame. The backrest cloth is wound around the rotating shaft. The upper part of the backrest cloth is connected to the sliding frame. First torsion springs are connected between both the left and right parts of the rotating shaft and the long support frame. Rotating the long support frame and the short support frame on the connecting shaft to deploy the airbag and inflating the airbag to make it expand can improve the user's comfort. Then, disengaging the clamping blocks from the sliding frame and pulling the sliding frame upward to extend the backrest cloth, causing the rotating shaft to rotate and the first torsion springs to deform. After the sliding frame stops moving, making the clamping blocks engage with the sliding frame again to form a backrest with the sliding frame. Then, allowing the user to sit on the airbag to rest.

[0008] Furthermore, the auxiliary mechanism includes a support plate, a rotating frame, a placement frame, a limiting belt, a buckle, and a first spring. A support plate is connected to the front side of the left part of the short support frame. A rotating frame is rotatably connected to the support plate through a damper. A placement frame is rotatably connected to the upper side of the rotating frame. Two front and rear limiting belts are connected to the upper side of the placement frame. A buckle is rotatably connected to the lower front side of the placement frame. The buckle is in clamping cooperation with the rotating frame. A first spring is connected between the placement frame and the rotating frame. Initially, the first spring is in a stretched state. When the user needs to leave the fishing rod while fishing, the user can rotate and adjust the angle of the rotating frame. After adjustment, the fishing rod is pushed into the placement frame and fixed by the limiting belt. When a fish bites the hook, the front end of the fishing rod moves downward, driving the placement frame to rotate downward, causing the buckle to disengage from the rotating frame. Subsequently, the first spring rebounds, causing the placement frame to rotate upward and driving the fishing rod to rotate upward.

[0009] Furthermore, the placement frame is arc-shaped.

[0010] Furthermore, the limiting belts are all made of elastic materials.

[0011] Further, it further includes a reinforcing mechanism, which includes a connecting rod, a swing rod, a central shaft, a telescopic rod, a second spring and a limiting plate. Connecting rods are connected to the lower left and right sides of the long support frame and the short support frame. Swing rods are rotatably connected to the connecting rods. Central shafts are rotatably connected between adjacent swing rods. Telescopic rods are connected to the upper sides of the front swing rods. Limiting plates are connected to the telescopic ends of the telescopic rods. Second springs are connected between the limiting plates and the connected telescopic rods. The limiting plates are in clamping fit with the adjacent rear swing rods. When the long support frame and the short support frame rotate and expand, they drive the connecting rods to move, causing the swing rods to rotate, and then pushing the limiting plates to move forward and retract. The second springs are compressed and contracted. When the swing rods rotate to a horizontal state, the limiting plates are released, and the second springs rebound, causing the limiting plates to move backward and be in clamping fit with the rear swing rods to stabilize the swing rods.

[0012] Further, it further includes a tightening mechanism, which includes a rotating plate, a limiting frame and a third spring. Rotating plates are rotatably connected to the connecting shafts. Limiting frames are slidably connected to the upper and lower parts of the rotating plates. Third springs are connected between the front and rear parts of the limiting frames and the connected rotating plates. When the long support frame and the short support frame rotate and close, the short support frame squeezes the limiting frame, and the third spring stretches. When the short support frame disengages from the limiting frame, the third spring rebounds, causing the limiting frame to reset and position the long support frame and the short support frame.

[0013] Further, it further includes a limiting mechanism, which includes a fixed block, a rotating member, a top block and a second torsion spring. Fixed blocks are connected to the front and rear sides of the connecting shaft. Rotating members are rotatably connected to the fixed blocks. Top blocks are connected to the rotating members. A plurality of second torsion springs are connected between the rotating members and the connected fixed blocks. After the long support frame and the short support frame rotate and expand, they squeeze the top blocks to rotate, causing the rotating members to rotate. Due to the action of the second torsion springs, the top blocks always fit against the long support frame and the short support frame.

[0014] Further, it further includes a placement mechanism, which includes a connecting block, a connecting frame and a flipping plate. A connecting block is connected to the front side of the right part of the short support frame. A connecting frame is connected to the connecting block. A flipping plate is rotatably connected to the connecting frame through a damper. Rotate the connecting frame to turn the flipping plate into a horizontal state, and then hang the storage bag on the flipping plate.

[0015] The beneficial effects of the present invention are as follows: 1. By pushing the fishing rod into the placement frame and fixing the fishing rod with the limiting belt, when a fish bites the hook, the front end of the fishing rod moves downward, driving the placement frame to rotate downward, causing the buckle to disengage from the rotating frame. Subsequently, the first spring rebounds, causing the placement frame to rotate upward, driving the fishing rod to rotate upward, achieving the effect of automatically helping the user retract the fishing rod during fishing and improving the convenience of the user's outdoor activities.

[0016] 2. By rotating the long support frame and the short support frame on the connecting shaft, the airbag is deployed. Then, the clamping block is disengaged from the sliding frame, and the sliding frame is pulled upward to extend the backrest cloth. The rotating shaft rotates, and the first torsion spring deforms. After the sliding frame stops moving, the clamping block is re-engaged with the sliding frame to form a backrest. Then, the user sits on the airbag to rest, achieving the effect of being able to carry items and at the same time being able to form a seat, improving the convenience and comfort of the user's outdoor activities.

[0017] 3. When the long support frame and the short support frame are rotated and expanded, the connecting rod is driven to move, causing the swing rod to rotate. Then, the limiting plate is pushed forward to retract, and the second spring is compressed and contracted. When the swing rod rotates to a horizontal state, the limiting plate is released, and the second spring rebounds, causing the limiting plate to move backward and be engaged with the rear swing rod to stabilize the swing rod, achieving the effect of being able to enhance the stability between the long support frame and the short support frame and avoid the shaking of the seat.

[0018] 4. When the long support frame and the short support frame are rotated and closed, the short support frame presses against the limiting frame, and the third spring is stretched. When the short support frame disengages from the limiting frame, the third spring rebounds, causing the limiting frame to reset and position the long support frame and the short support frame, achieving the effect of being able to tighten and lock the long support frame and the short support frame and avoid the long support frame and the short support frame from expanding during movement.

[0019] 5. After the long support frame and the short support frame are rotated and expanded, they press against the top block to rotate, causing the rotating part to rotate. Due to the action of the second torsion spring, the top block always fits against the long support frame and the short support frame, achieving the effect of being able to limit the long support frame and the short support frame and improve the stability of the long support frame and the short support frame.

[0020] 6. By rotating the connecting frame, the flip plate is flipped to a horizontal state, and then the storage bag is hung on the flip plate, achieving the effect of being able to hang the storage bag and improve the convenience of use for the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a three-dimensional structural schematic diagram of the present invention.

[0022] Figure 2 is a partial three-dimensional structural schematic diagram of the present invention.

[0023] Figure 3 is a first partial three-dimensional structural schematic diagram of the seat mechanism of the present invention.

[0024] Figure 4 is a second partial three-dimensional structural schematic diagram of the seat mechanism of the present invention.

[0025] Figure 5Schematic diagram of the three-dimensional structure of the first part of the auxiliary mechanism of the present invention.

[0026] Figure 6 Schematic diagram of the three-dimensional structure of the second part of the auxiliary mechanism of the present invention.

[0027] Figure 7 Schematic diagram of the three-dimensional structure of the enhancement mechanism part of the present invention.

[0028] Figure 8 Schematic diagram of the three-dimensional structure of the tightening mechanism part of the present invention.

[0029] Figure 9 Schematic diagram of the three-dimensional structure of the limiting mechanism part of the present invention.

[0030] Figure 10 Schematic diagram of the three-dimensional structure of the placement mechanism part of the present invention.

[0031] Names and serial numbers of components in the figure: 1 - backpack, 2 - shoulder strap, 3 - handle, 4 - seat mechanism, 41 - connecting shaft, 42 - long support frame, 43 - short support frame, 44 - airbag, 45 - sliding frame, 451 - clamping block, 452 - rotating shaft, 46 - backrest cloth, 461 - first torsion spring, 5 - auxiliary mechanism, 51 - support plate, 52 - rotating frame, 53 - placement frame, 54 - limiting belt, 55 - buckle, 56 - first spring, 6 - enhancement mechanism, 61 - connecting rod, 62 - swing rod, 63 - central shaft, 64 - telescopic rod, 641 - second spring, 65 - limiting plate, 7 - tightening mechanism, 71 - rotating plate, 72 - limiting frame, 73 - third spring, 8 - limiting mechanism, 81 - fixed block, 82 - rotating part, 83 - top block, 84 - second torsion spring, 9 - placement mechanism, 91 - connecting block, 92 - connecting frame, 93 - flipping plate. Detailed implementation manners

[0032] The preferred technical solutions of the present invention will be described in detail below with reference to the accompanying drawings.

[0033] A multi-functional backpack with a portable seat suitable for outdoor use, as Figures 1 - 10 shown, includes a backpack 1, shoulder straps 2, a handle 3, a seat mechanism 4 and an auxiliary mechanism 5. Shoulder straps 2 are connected to the rear sides of the left and right parts of the backpack 1, a handle 3 is connected to the front side of the upper part of the backpack 1, a seat mechanism 4 is provided on the backpack 1, and an auxiliary mechanism 5 is provided on the seat mechanism 4.

[0034] As Figure 1 , Figure 3 and Figure 4As shown, the seat mechanism 4 includes a connecting shaft 41, a long support frame 42, a short support frame 43, an airbag 44, a sliding frame 45, a clamping block 451, a rotating shaft 452, a backrest cloth 46 and a first torsion spring 461. Connecting shafts 41 are connected to the lower left and right sides of the backpack 1. The connecting shafts 41 are connected by a damping rotation to a long support frame 42. The connecting shafts 41 are connected by a damping rotation to a short support frame 43. The short support frame 43 is located inside the long support frame 42. An airbag 44 is connected between the upper parts of the short support frame 43 and the long support frame 42. A sliding frame 45 is slidably connected to the upper part of the long support frame 42. Four clamping blocks 451 are clamped to the left and right parts of the long support frame 42. The clamping blocks 451 are in clamping cooperation with the sliding frame 45. A rotating shaft 452 is rotatably connected to the upper side of the long support frame 42. A backrest cloth 46 is wound around the rotating shaft 452. The upper part of the backrest cloth 46 is connected to the sliding frame 45. First torsion springs 461 are connected between the left and right parts of the rotating shaft 452 and the long support frame 42 respectively.

[0035] As Figure 1 , Figure 5 and Figure 6 shown, the auxiliary mechanism 5 includes a support plate 51, a rotating frame 52, a placement frame 53, a limiting belt 54, a buckle 55 and a first spring 56. A support plate 51 is connected to the front side of the left part of the short support frame 43. A rotating frame 52 is rotatably connected to the support plate 51 by a damping rotation. A placement frame 53 is rotatably connected to the upper side of the rotating frame 52. The placement frame 53 is arc-shaped, facilitating the placement of fishing rods. Two front and rear limiting belts 54 are connected to the upper side of the placement frame 53. The limiting belts 54 are made of elastic materials, facilitating the adaptation to fishing rods of different sizes. A buckle 55 is rotatably connected to the lower front side of the placement frame 53. The buckle 55 is in clamping cooperation with the rotating frame 52. A first spring 56 is connected between the placement frame 53 and the rotating frame 52. Initially, the first spring 56 is in a stretched state.

[0036] When using the present invention, first place the items to be carried outdoors in the backpack 1. After placing, the user can carry the backpack 1 on the back through the shoulder straps 2 or hold the handle 3 in the hand. When the user needs to rest, rotate the long support frame 42 and the short support frame 43 on the connecting shaft 41 to deploy the airbag 44. Inflating the airbag 44 to make it expand can improve the user's comfort. Then, disengage the clamping block 451 from the sliding frame 45, pull the sliding frame 45 upward to extend the backrest cloth 46, rotate the rotating shaft 452, and the first torsion spring 461 deforms. After the sliding frame 45 stops moving, make the clamping block 451 engage with the sliding frame 45 again to form a backrest with the sliding frame 45. Then, let the user sit on the airbag 44 to rest, which can be used to carry items and form a seat at the same time, improving the convenience and comfort of the user's outdoor activities. When the seat needs to be retracted, close the long support frame 42 and the short support frame 43, and then reset the sliding frame 45. The first torsion spring 461 returns to wind up the backrest cloth 46. When the user needs to leave the fishing rod while fishing, the angle of the adjustable rotating frame 52 can be rotated. After adjustment, push the fishing rod into the placement frame 53 and fix the fishing rod through the limiting belt 54. When a fish bites the hook, the front end of the fishing rod moves downward, driving the placement frame 53 to rotate downward, causing the buckle 55 to disengage from the rotating frame 52. Subsequently, the first spring 56 rebounds, causing the placement frame 53 to rotate upward, driving the fishing rod to rotate upward, which can automatically retract the fishing rod for the user when fishing and improve the convenience of the user's outdoor activities.

[0037] As Figure 1 and Figure 7 shown, it further includes a strengthening mechanism 6. The strengthening mechanism 6 includes a connecting rod 61, a swing rod 62, a central shaft 63, a telescopic rod 64, a second spring 641, and a limiting plate 65. Connecting rods 61 are connected to the lower left and right sides of the long support frame 42 and the short support frame 43. Swing rods 62 are rotatably connected to the connecting rods 61. Central shafts 63 are rotatably connected between adjacent swing rods 62. Telescopic rods 64 are connected to the upper sides of the front swing rods 62. Limiting plates 65 are connected to the telescopic ends of the telescopic rods 64. Second springs 641 are connected between the limiting plates 65 and the connected telescopic rods 64. The limiting plates 65 are in clamping engagement with the adjacent rear swing rods 62.

[0038] By using the strengthening mechanism 6 of the present device, the stability between the long support frame 42 and the short support frame 43 can be enhanced. When the long support frame 42 and the short support frame 43 rotate and expand, they drive the connecting rod 61 to move, causing the swing rod 62 to rotate, and then pushing the limit plate 65 to move forward and retract. The second spring 641 is compressed and contracted. When the swing rod 62 rotates to a horizontal state, the limit plate 65 is released, and the second spring 641 rebounds, causing the limit plate 65 to move backward and engage with the rear swing rod 62, stabilizing the swing rod 62, thereby enhancing the stability between the long support frame 42 and the short support frame 43 and preventing the seat from shaking.

[0039] As Figure 1 and Figure 8 shown, it further includes a tightening mechanism 7. The tightening mechanism 7 includes a rotating plate 71, a limit frame 72, and a third spring 73. Rotating plates 71 are rotatably connected to the connecting shaft 41. The rotating plates 71 are located outside the long support frame 42. Slideably connected to the upper and lower parts of the rotating plates 71 are limit frames 72. Between the front and rear parts of the limit frames 72 and the connected rotating plates 71 are connected third springs 73.

[0040] By using the tightening mechanism 7 of the present device, the long support frame 42 and the short support frame 43 can be tightened and locked. When the long support frame 42 and the short support frame 43 rotate and close, the short support frame 43 squeezes the limit frame 72, and the third spring 73 is stretched. When the short support frame 43 disengages from the limit frame 72, the third spring 73 rebounds, causing the limit frame 72 to reset and position the long support frame 42 and the short support frame 43, thereby tightening and locking the long support frame 42 and the short support frame 43 and preventing the long support frame 42 and the short support frame 43 from expanding during movement.

[0041] As Figure 1 and Figure 9 shown, it further includes a limiting mechanism 8. The limiting mechanism 8 includes a fixed block 81, a rotating member 82, a top block 83, and a second torsion spring 84. Fixed blocks 81 are connected to both the front and rear sides of the connecting shaft 41. Rotating members 82 are rotatably connected to the fixed blocks 81. Top blocks 83 are connected to the rotating members 82. Between the rotating members 82 and the connected fixed blocks 81 are connected two second torsion springs 84.

[0042] By using the limiting mechanism 8 of the present device, the long support frame 42 and the short support frame 43 can be limited. After the long support frame 42 and the short support frame 43 rotate and expand, they squeeze the top block 83 to rotate, causing the rotating member 82 to rotate. Through the action of the second torsion spring 84, the top block 83 always fits against the long support frame 42 and the short support frame 43, thereby limiting the long support frame 42 and the short support frame 43 and improving the stability of the long support frame 42 and the short support frame 43.

[0043] As Figure 1 andFigure 10 As shown, it further includes a placement mechanism 9. The placement mechanism 9 includes a connection block 91, a connection frame 92, and a flipping plate 93. A connection block 91 is connected to the front side of the right part of the short support frame 43. A connection frame 92 is connected to the connection block 91, and a flipping plate 93 is rotatably connected to the connection frame 92 through a damper.

[0044] By using the placement mechanism 9 of the present device, a storage bag can be hung. Rotate the connection frame 92 to make the flipping plate 93 turn to a horizontal state, and then hang the storage bag on the flipping plate 93, thus playing the role of being able to hang the storage bag and improving the convenience of use for users.

[0045] The above embodiments are only preferred embodiments of the present invention and are not used to limit the scope of implementation of the present invention. Therefore, any equivalent changes made to the content described in the claims of the present invention should be included within the scope of the claims of the present invention.

Claims

1. A portable seat multi-functional backpack suitable for outdoor use, characterized in that: It includes a backpack (1), shoulder straps (2), a seat mechanism (4) and an auxiliary mechanism (5). The shoulder straps (2) are connected to the rear sides of the left and right parts of the backpack (1). A seat mechanism (4) capable of forming a seat is provided on the backpack (1), and an auxiliary mechanism (5) capable of automatically retracting a fishing rod is provided on the seat mechanism (4).

2. The multifunctional backpack of a portable seat applicable to the outdoors according to claim 1, wherein: It further includes a handle (3), and the handle (3) is connected to the front side of the upper part of the backpack (1).

3. The multifunctional backpack of a portable seat applicable to the outdoors according to claim 2, wherein: The seat mechanism (4) includes a connecting shaft (41), a long support frame (42), a short support frame (43), an airbag (44), a sliding frame (45), a clamping block (451), a rotating shaft (452), a backrest cloth (46) and a first torsion spring (461). The connecting shafts (41) are connected to the left and right sides of the lower part of the backpack (1). The long support frame (42) is rotatably connected between the connecting shafts (41) in a damping manner. The short support frame (43) is rotatably connected between the connecting shafts (41) in a damping manner. The short support frame (43) is located inside the long support frame (42). An airbag (44) is connected between the upper part of the short support frame (43) and the long support frame (42). The sliding frame (45) is slidably connected to the upper part of the long support frame (42). A plurality of clamping blocks (451) are clamped on the left and right parts of the long support frame (42), and the clamping blocks (451) are in clamping cooperation with the sliding frame (45). The rotating shaft (452) is rotatably connected to the upper side of the long support frame (42). The backrest cloth (46) is wound around the rotating shaft (452). The upper part of the backrest cloth (46) is connected to the sliding frame (45). The first torsion springs (461) are connected between the left and right parts of the rotating shaft (452) and the long support frame (42). Rotate the long support frame (42) and the short support frame (43) on the connecting shaft (41) to expand the airbag (44). Inflate the airbag (44) to make it expand, which can improve the user's comfort. Then, make the clamping block (451) disengage from the sliding frame (45), pull the sliding frame (45) upward to extend the backrest cloth (46), rotate the rotating shaft (452), and the first torsion spring (461) deforms. After the sliding frame (45) stops moving, make the clamping block (451) re-engage with the sliding frame (45) to form a backrest with the sliding frame (45). Then, let the user sit on the airbag (44) to rest.

4. The multifunctional backpack of a portable seat applicable to the outdoors according to claim 3, characterized in that: The auxiliary mechanism (5) includes a support plate (51), a rotating frame (52), a placement frame (53), a limiting belt (54), a buckle (55), and a first spring (56). The front side of the left part of the short support frame (43) is connected to the support plate (51). The support plate (51) is rotatably connected to the rotating frame (52) through damping. The upper side of the rotating frame (52) is rotatably connected to the placement frame (53). The upper side of the placement frame (53) is connected to two front and rear limiting belts (54). The lower front side of the placement frame (53) is rotatably connected to the buckle (55). The buckle (55) is engaged with the rotating frame (52). A first spring (56) is connected between the placement frame (53) and the rotating frame (52). Initially, the first spring (56) is in a stretched state. When the user needs to leave the fishing rod while fishing, the user can rotate and adjust the angle of the rotating frame (52). After adjustment, the fishing rod is pushed into the placement frame (53), and the fishing rod is fixed by the limiting belt (54). When a fish bites the hook, the front end of the fishing rod moves downward, driving the placement frame (53) to rotate downward, causing the buckle (55) to disengage from the rotating frame (52). Subsequently, the first spring (56) rebounds, causing the placement frame (53) to rotate upward, driving the fishing rod to rotate upward.

5. The multifunctional backpack of a portable seat applicable to outdoors according to claim 4, characterized in that: The placement frame (53) is arc-shaped.

6. The multifunctional backpack of a portable seat applicable to outdoors according to claim 4, wherein: The limiting belts (54) are both made of elastic materials.

7. A multifunctional backpack for a portable seat applicable to the outdoors according to claim 4, characterized in that: It further includes a strengthening mechanism (6). The strengthening mechanism (6) includes a connecting rod (61), a swinging rod (62), a central shaft (63), a telescopic rod (64), a second spring (641), and a limiting plate (65). The left and right sides of the lower parts of the long support frame (42) and the short support frame (43) are both connected to the connecting rod (61). The connecting rod (61) is rotatably connected to the swinging rod (62). The central shaft (63) is rotatably connected between adjacent swinging rods (62). The telescopic rod (64) is connected to the upper side of the front swinging rod (62). The limiting plate (65) is connected to the telescopic end of the telescopic rod (64). A second spring (641) is connected between the limiting plate (65) and the connected telescopic rod (64). The limiting plate (65) is engaged with the adjacent rear swinging rod (62). When the long support frame (42) and the short support frame (43) rotate and expand, the connecting rod (61) is driven to move, causing the swinging rod (62) to rotate, and then pushing the limiting plate (65) to move forward and retract. The second spring (641) is compressed and contracted. When the swinging rod (62) rotates to a horizontal state, the limiting plate (65) is released, and the second spring (641) rebounds, causing the limiting plate (65) to move backward and engage with the rear swinging rod (62) to stabilize the swinging rod (62).

8. A multifunctional backpack of a portable seat applicable to outdoors according to claim 7, characterized in that: It further includes a tightening mechanism (7). The tightening mechanism (7) includes a rotating plate (71), a limiting frame (72), and a third spring (73). The rotating plates (71) are rotatably connected to the connecting shaft (41). The upper and lower parts of the rotating plate (71) are slidably connected to the limiting frames (72). The third springs (73) are connected between the front and rear parts of the limiting frames (72) and the connected rotating plates (71). When the long support frame (42) and the short support frame (43) rotate and close, the short support frame (43) presses against the limiting frame (72), and the third spring (73) is stretched. When the short support frame (43) disengages from the limiting frame (72), the third spring (73) rebounds, causing the limiting frame (72) to reset and position the long support frame (42) and the short support frame (43).

9. The multifunctional backpack of a portable seat applicable to outdoors according to claim 8, wherein: It further includes a limiting mechanism (8). The limiting mechanism (8) includes a fixed block (81), a rotating member (82), a top block (83), and a second torsion spring (84). The fixed blocks (81) are connected to both the front and rear sides of the connecting shaft (41). The rotating members (82) are rotatably connected to the fixed blocks (81). The top blocks (83) are connected to the rotating members (82). A plurality of second torsion springs (84) are connected between the rotating members (82) and the connected fixed blocks (81). After the long support frame (42) and the short support frame (43) rotate and open, they press against the top block (83) to rotate, causing the rotating member (82) to rotate. Due to the action of the second torsion spring (84), the top block (83) always fits against the long support frame (42) and the short support frame (43).

10. The multi-functional backpack of a portable seat applicable to outdoors according to claim 9, characterized in that: It further includes a placement mechanism (9). The placement mechanism (9) includes a connecting block (91), a connecting frame (92), and a flipping plate (93). The connecting block (91) is connected to the front side of the right part of the short support frame (43). The connecting frame (92) is connected to the connecting block (91). The flipping plate (93) is rotatably connected to the connecting frame (92) through damping. Rotate the connecting frame (92) to turn the flipping plate (93) into a horizontal state, and then hang the storage bag on the flipping plate (93).

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