A bearing device and a carrier

Abstract

The utility model discloses a kind of bearing device and carrier.Bearing device includes bearing main body, tie and tie locking piece, bearing main body includes support part and backrest, the first end of tie is located at bearing main body or bracket, second end is located at backrest, at least one end in first end and second end can be movable relative to backrest, to change the included angle between backrest and support part, tie is set through tie locking piece, tie locking piece is in unlocking state, tie can be moved along first direction or second direction, tie locking piece is in locking state, tie is fixed relative to backrest or tie is enough to move along second direction, first direction and second direction are opposite.The bearing device can make it switch from locking state to unlocking state by operating tie locking piece with single hand, tie locking piece in unlocking state allows tie to move relative to backrest, the movement of tie can realize stepless adjustment of backrest angle, and backrest can be adjusted to any angle in range.

Description

Technical Field

[0001] This utility model relates to the field of children's products technology, and in particular to a support device and carrier. Background Technology

[0002] A stroller seat is a mechanism used to carry children. To improve the functionality of strollers, existing seat backs can be switched to a sitting position with a large tilt, a semi-reclined position with a small tilt, and a nearly horizontal reclining position as needed. However, switching between these positions is not only difficult, time-consuming, and laborious, but also requires the user's hands, which need to be used in conjunction to complete the switch.

[0003] Therefore, how to propose a support device that allows for time-saving and labor-saving adjustment of the backrest angle using only one hand is an urgent technical problem that needs to be solved. Utility Model Content

[0004] The purpose of this utility model is to provide a support device and carrier that allows for adjustment of the tilt angle of the backrest of the support device with just one hand. The adjustment process is convenient, time-saving, labor-saving, simple and quick.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A support device for fixing to a bracket, the support device comprising: a support body including a support portion and a backrest, the backrest being rotatable relative to the support portion; a strap having a first end and a second end, the first end being disposed at the support body or the bracket, the second end being disposed at the backrest, at least one of the first end and the second end being movable relative to the backrest to change the angle between the backrest and the support portion; and a strap locking member through which the strap passes, the strap locking member having an unlocked state and a locked state, wherein when the strap locking member is in the unlocked state, the strap is movable relative to the backrest in a first direction or a second direction; and when the strap locking member is in the locked state, the strap is fixed relative to the backrest, or the strap is movable in the second direction, the first direction and the second direction being opposite.

[0007] Preferably, the strap locking member is disposed on the backrest. When the strap locking member is in the unlocked state, the strap moves along the first direction, and the backrest can rotate relative to the support portion to increase or decrease the angle between the backrest and the support portion. When the strap locking member is in the locked state, the strap can move along the second direction, and the backrest can rotate relative to the support portion to decrease or increase the angle between the backrest and the support portion.

[0008] Preferably, the strap locking member includes a roller fixing seat and a pressing roller. The roller fixing seat is disposed on the backrest and has a sliding groove. The end of the pressing roller passes through the sliding groove. When the strap locking member is in the locked state, the pressing roller is located at the bottom end of the sliding groove and presses against the strap. When the strap locking member switches from the locked state to the unlocked state, the pressing roller moves toward the top end of the sliding groove and disengages from the strap.

[0009] Preferably, the slide groove is arc-shaped; when the strap locking member is in the locked state, pulling the strap along the second direction can drive the pressure roller to move toward the top of the slide groove, so that the pressure roller disengages from the strap; the inclined extension direction of the slide groove is gradually closer to the backrest along the first direction.

[0010] Preferably, the strap locking component further includes an unlocking wrench, which is rotatably connected to the roller fixing seat. The unlocking wrench has a rotating shaft through hole, and the end of the pressing roller passes through the rotating shaft through hole and the sliding groove. Operating the unlocking wrench can move the pressing roller to the top of the sliding groove to disengage from the strap. The strap locking component also includes an elastic element, one end of which is connected to the unlocking wrench. The elastic element has a tendency to cause the pressing roller to return to the bottom of the sliding groove and press the strap.

[0011] Preferably, the roller fixing seat has an opening on the side opposite to the backrest, and the unlocking wrench is partially blocked at the opening; or, the roller fixing seat includes a base and a top cover, with the top cover covering the top of the base; the sliding groove includes a first rotating waist hole on the base and a second rotating waist hole on the top cover, with the end of the pressing roller passing through the first rotating waist hole and the first rotating waist hole; the base has a first rotating hole, the top cover has a second rotating hole, and the unlocking wrench has a third rotating hole, with the first rotating shaft passing through the first rotating hole, the second rotating hole, and the third rotating hole; the elastic element is a torsion spring, which is sleeved on the first rotating shaft, with one end of the torsion spring abutting against the top cover and the other end of the torsion spring abutting against the unlocking wrench.

[0012] Preferably, the strap includes two first ends, which are respectively fixed to both sides of the support after passing over both sides of the backrest; and / or, the first ends are fixed, the second ends are movable relative to the backrest, the second ends pass through the strap locking member along the second direction and extend out of the strap locking member, and pulling the second ends along the second direction can change the angle between the backrest and the support.

[0013] Preferably, the ties include two first ties and one second ties, the two first ties being connected to the same end of the second ties, the second ties passing through the ties locking member, the second ties forming the second end, and the first ties forming the first end; the second ties are flat ties; and / or, the first ties are rope-like.

[0014] Preferably, the supporting device further includes a guiding mechanism disposed on the backrest and used to guide the movement of the straps; the guiding mechanism includes two guide posts disposed at the middle position of the backrest and spaced apart, forming a guiding gap between the two guide posts, the strap locking member being disposed opposite to the guiding gap, the second strap portion being limited to the side of the two guide posts near the strap locking member, and the two first strap portions being disposed around the two guide posts respectively; and / or, the guiding mechanism further includes two guide holes disposed on two opposite sides of the backrest, and the two first strap portions being disposed through the guide holes of the two guide holes respectively.

[0015] A vehicle includes a support frame and the aforementioned load-bearing device, the load-bearing device being disposed on the support frame.

[0016] The beneficial effects of this utility model are:

[0017] The supporting device provided by this utility model is used to fix itself on a bracket. The supporting device includes a supporting body, a strap, and a strap locking member. The supporting body includes a support part and a backrest. The backrest can rotate relative to the support part. The strap has a first end and a second end. The first end is located at the supporting body or bracket, and the second end is located at the backrest. At least one of the first end and the second end can move relative to the backrest to change the included angle between the backrest and the support part. The strap passes through the strap locking member, which has an unlocked state and a locked state. When the strap locking member is in the unlocked state, the strap can move along a first direction or a second direction. When the strap locking member is in the locked state, the strap is fixed relative to the backrest or the strap can move along a second direction, and the first direction and the second direction are opposite. This supporting device can switch from the locked state to the unlocked state by operating the strap locking member with one hand. The strap locking member in the unlocked state allows the strap to move relative to the backrest. The movement of the strap can achieve stepless adjustment of the backrest angle, allowing the backrest to be adjusted to any angle within the adjustable range. Attached Figure Description

[0018] Figure 1 This is an exploded view of a portion of the structure of the bearing device provided in Embodiment 1 of this utility model;

[0019] Figure 2 yes Figure 1 Enlarged view of section C;

[0020] Figure 3 This is a side view of a portion of the structure of the bearing device provided in Embodiment 1 of this utility model during the process of moving the tether along the first direction;

[0021] Figure 4 This is a front view of a portion of the structure of the bearing device provided in Embodiment 1 of this utility model during the process of moving the tether along the first direction;

[0022] Figure 5 This is a front view of a portion of the structure of the bearing device provided in Embodiment 1 of this utility model during the process of moving the tether along the second direction;

[0023] Figure 6 This is a side view of the carrying device of the vehicle provided in Embodiment 1 of this utility model when it is in a seated position;

[0024] Figure 7 This is a front view of the carrier-bearing device of the vehicle provided in Embodiment 1 of this utility model when it is in a seated position;

[0025] Figure 8 This is a side view of the carrier-bearing device of the vehicle provided in Embodiment 1 of this utility model when it is in a semi-reclined state;

[0026] Figure 9This is a front view of the carrier-bearing device of the vehicle provided in Embodiment 1 of this utility model when it is in a semi-reclined state;

[0027] Figure 10 This is a side view of the carrying device of the vehicle provided in Embodiment 1 of this utility model when it is in a lying position;

[0028] Figure 11 This is a front view of the carrier-bearing device of the vehicle provided in Embodiment 1 of this utility model when it is in a lying position.

[0029] Figure 12 This is a schematic diagram of unlocking the carrier device provided in Embodiment 2 of this utility model.

[0030] In the picture:

[0031] 10. Load-bearing device; 20. Support frame;

[0032] 100. Main load-bearing component; 110. Support component; 120. Backrest;

[0033] 200. Lacing; 210. First lacing section; 220. Second lacing section;

[0034] 300. Ladder locking component; 310. Unlocking wrench; 311. Connecting part; 312. Operating part; 313. Third rotating hole; 314. Rotary shaft through hole; 315. Anti-slip protrusion; 320. Pressing roller; 330. Roller fixing seat; 331. Base; 3311. First rotating waist hole; 3312. First rotating hole; 332. Top cover; 3321. Second rotating waist hole; 3322. Second rotating hole; 340. Elastic element; 350. First rotating shaft; 301. Slide groove;

[0035] 400. Guide post component;

[0036] 500. Guide hole component;

[0037] 600. Cover plate. Detailed Implementation

[0038] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0039] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0040] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0041] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0042] like Figures 1 to 11 As shown, this utility model provides a supporting device 10, which can be fixed on a bracket 20 to form a carrier. Specifically, as... Figure 1 , Figure 2 , Figures 6 to 11As shown, the bearing device 10 includes a bearing body 100, a strap 200 and a strap locking member 300. The bearing body 100 includes a support part 110 and a backrest 120. The backrest 120 can rotate relative to the support part 110. The backrest 120 can be rotatably connected to the support part 110 or to the bracket 20. The strap 200 has a first end and a second end. The first end is located at the support body 100 or the bracket 20, and the second end is located at the backrest 120. At least one of the first and second ends is movable relative to the backrest 120 to change the angle between the backrest 120 and the support part 110. The strap 200 passes through a strap locking member 300, which has an unlocked state and a locked state and can be switched with one hand. When the strap locking member 300 is in the unlocked state, the strap 200 can move along a first direction or a second direction. When the strap locking member 300 is in the locked state, the strap 200 is fixed relative to the backrest 120 or the strap 200 can move along the second direction. The first and second directions are opposite. The first direction is as follows: Figure 3 and Figure 4 As shown in direction A, the second direction is as follows. Figure 5 As shown in direction B. It should be noted that the supporting body 100 can be a seat or a bassinet, and the straps 200 can also be fixed to the upper part, cover or other parts of the bassinet.

[0043] The supporting device 10 provided by this utility model allows the strap 200 to pass through the strap locking member 300. Therefore, when the user needs to switch the state of the backrest 120, the strap locking member 300 can be operated with one hand to switch it from the locked state to the unlocked state. In the unlocked state, the strap locking member 300 allows the strap 200 to move relative to the backrest 120. Compared with two-handed operation, one-handed operation is more convenient, time-saving, labor-saving, simple, and quick. Moreover, since the movement of the strap 200 relative to the strap locking member 300 is continuous, the angle of the backrest 120 can be infinitely adjusted by moving the strap 200. The backrest 120 can be adjusted to any angle within the adjustable range, which can meet the needs of various users and improve the user experience.

[0044] In some embodiments, the strap locking member 300 is provided on the backrest 120. When the strap locking member 300 is in the unlocked state, the strap 200 moves along the first direction, and the backrest 120 can rotate relative to the support portion 110, so that the included angle between the backrest 120 and the support portion 110 increases or decreases. When the strap locking member 300 is in the locked state, the strap 200 can move along the second direction, and the backrest 120 can rotate relative to the support portion 110, so that the included angle between the backrest 120 and the support portion 110 decreases or increases.

[0045] Continue to refer to Figure 2As shown, in some embodiments, the strap locking member 300 includes a roller fixing seat 330 and a pressing roller 320. The roller fixing seat 330 is disposed on the backrest 120 and has a groove 301. The end of the pressing roller 320 passes through the groove 301. When the strap locking member 300 is in the locked state, the pressing roller 320 is located at the bottom end of the groove 301 and presses against the strap 200. When the strap locking member 300 switches from the locked state to the unlocked state, the pressing roller 320 moves toward the top end of the groove 301 and disengages from the strap 200.

[0046] Continue to refer to Figure 2 As shown, the strap locking mechanism 300 also includes an unlocking wrench 310 and an elastic element 340. The unlocking wrench 310 is for one-handed operation by the user. The pressure roller 320 is used to press the strap 200 so that the strap 200 cannot move relative to the backrest 120, or to release the strap 200 so that the strap 200 can move relative to the backrest 120. The roller fixing seat 330 is used to fix the pressure roller 320, and the elastic element 340 is used to provide sufficient force for the pressure roller 320 to press the strap 200. Specifically, the roller fixing seat 330 is fixed to the backrest 120, and the unlocking wrench 310 is rotatably connected to the roller fixing seat 330. The unlocking wrench 310 is provided with a pivot hole 314, and the end of the pressure roller 320 passes through the pivot hole 314 and the slide groove 301. Operating the unlocking wrench 310 can move the pressure roller 320 to the top of the slide groove 301 to release the strap 200. The pivot hole 314 here is defined as the second rotation point. One end of the elastic element 340 is connected to the unlocking wrench 310, and the elastic element 340 has the tendency to cause the pressure roller 320 to return to the bottom end of the slide groove 301 and press the strap 200.

[0047] Regarding the structure of the slide 301, in some embodiments, the slide 301 is arc-shaped.

[0048] In a specific embodiment, such as Figure 3 As shown, the slide groove 301 is an arc-shaped groove that gradually approaches the backrest 120 along the first direction at an inclined extension. By pressing down the unlocking lever 310, the pressure roller 320 can be moved from the lower end of the slide groove 301 to the upper end of the slide groove 301. In this structure, if the strap locking member 300 is in the unlocked state, the backrest 120 rotates under the action of gravity, causing the backrest 120 to switch sequentially between a sitting position → a semi-reclining position → a fully reclined position; if the strap locking member 300 is in the locked state, by pulling the strap 200 along the second direction, the backrest 120 can switch sequentially between a fully reclined position → a semi-reclining position → a sitting position. In this way, the angle of the backrest 120 can be adjusted with one hand.

[0049] In another specific embodiment, such as Figure 12As shown, the slide groove 301 is an arc-shaped groove that extends at an angle towards the backrest 120 in a first direction. By raising the unlocking lever 310, the pressure roller 320 can be moved from the lower end of the slide groove 301 to the upper end of the slide groove 301. When the strap locking member 300 is in the locked state, the strap 200 is fixed relative to the backrest 120. When the strap locking member 300 is in the unlocked state, the strap 200 can move relative to the backrest 120 in a first direction or a second direction. The power for the backrest 120 to move in the first direction can come from the pulling force in the first direction, so that the backrest 120 switches sequentially between a sitting position → a semi-reclining position → a fully reclined position. The power for the backrest 120 to move in the second direction can come from the pulling force in the second direction, so that the backrest 120 switches sequentially between a fully reclined position → a semi-reclining position → a sitting position.

[0050] Continue to refer to Figure 3 As shown in the first image at the top, in the initial state, the unlocking wrench 310 is in a basically horizontal position, and the pressure roller 320 is located at the bottom end of the slide groove 301 and pressed against the strap 200; when the user presses down the unlocking wrench 310 with one hand, as... Figure 3 As shown in the second figure in the middle, the unlocking wrench 310 allows the pressure roller 320 to move within the groove 301, from the bottom to the top of the groove 301. Once at the top, the pressure roller 320 disengages from the strap 200, releasing its pressure on the strap 200. The elastic element 340 has a tendency to return the pressure roller 320 to the bottom of the groove 301 and press against the strap 200. After the user releases the pressure on the unlocking wrench 310, as... Figure 3 As shown in the third figure at the bottom, under the action of the elastic element 340, the unlocking wrench 310 rotates in the opposite direction, causing the pressure roller 320 to move in the opposite direction within the slide groove 301, and move from the top end of the slide groove 301 to the bottom end of the slide groove 301. The pressure roller 320, which has moved to the bottom end of the slide groove 301, presses the strap 200 again under the action of the elastic element 340, so that the position of the strap 200 relative to the backrest 120 can remain unchanged, thus ensuring the stability of the backrest 120 at its angle.

[0051] Continue to refer to Figure 3As shown, in some embodiments, the roller fixing seat 330 includes a base 331 and a top cover 332. The top of the base 331 has an opening, and the top cover 332 covers the top of the base 331. The slide groove 301 includes a first rotating waist hole 3311 on the base 331 and a second rotating waist hole 3321 on the top cover 332. The end of the pressing roller 320 passes through the first rotating waist hole 3311 and the first rotating waist hole 3311. It should be noted that there are two first rotating waist holes 3311, which are respectively located on opposite sides of the base 331. Correspondingly, there are two second rotating waist holes 3321, which are respectively located on opposite sides of the top cover 332. The two ends of the pressing roller 320 are respectively inserted into the corresponding first rotating waist hole 3311 and second rotating waist hole 3321. Of course, in other embodiments, the roller holder 330 may also be a one-piece molded part, such as a cylindrical structure with open ends or a box-shaped structure with open end.

[0052] It should be noted that the elastic element 340 and the pressure roller 320 are both installed between the base 331 and the top cover 332. Part of the structure of the unlocking wrench 310 extends between the base 331 and the top cover 332, and the remaining part extends outside the base 331 and the top cover 332. The separate design of the base 331 and the top cover 332 makes assembly convenient.

[0053] In one specific embodiment, the base 331 includes a base plate and two first side plates. The two first side plates are connected to both sides of the base plate and are roughly U-shaped. The base plate is fixedly connected to the backrest 120, and the connection method can be adhesive, screw connection, welding, etc. Each first side plate is provided with a first rotating waist hole 3311, and the two ends of the first rotating waist hole 3311 are at different heights. Of course, in other embodiments, the base 331 may also include only two first side plates, with the bottom end of the first side plates directly fixed to the backrest 120, or integrally formed with the backrest 120.

[0054] In one specific embodiment, the top cover 332 includes a top plate and two second side plates. The two second side plates are connected to both sides of the top plate and are roughly U-shaped. After assembling the base 331 and the top cover 332, the top plate and the bottom plate are positioned opposite each other. Each second side plate is provided with a second rotating waist hole 3321, and the two second rotating waist holes 3321 are provided in a one-to-one correspondence with the two first rotating waist holes 3311. Optionally, the first rotating waist holes 3311 and the second rotating waist holes 3321 are the same in shape and size. Of course, in other embodiments, the top cover 332 can also be set to other shapes as needed, such as a square frame.

[0055] Continue to refer to Figure 3As shown, in order to achieve the rotatable connection between the unlocking wrench 310 and the roller fixing seat 330, a first rotating hole 3312 is provided on the base 331. The first rotating hole 3312 is spaced apart from the first rotating waist hole 3311 and is located above the first rotating waist hole 3311. The top cover 332 is provided with a second rotating hole 3322. The second rotating hole 3322 is spaced apart from the second rotating waist hole 3321 and is located above the second rotating waist hole 3321. The unlocking wrench 310 is provided with a third rotating hole 313. The third rotating hole 313 is located above the rotating shaft through hole 314. By passing a first rotating shaft 350 through the first rotating hole 3312, the second rotating hole 3322 and the third rotating hole 313, the rotatable connection between the unlocking wrench 310 and the roller fixing seat 330 is achieved. The rotation point here is defined as the first rotation point.

[0056] Of course, in other embodiments, the top cover 332 may be omitted, and the unlocking wrench 310 may be used to block it. Specifically, the roller fixing seat 330 forms an opening on the side away from the backrest 120, and the unlocking wrench 310 is partially blocked at the opening.

[0057] In one specific embodiment, continue to refer to Figure 3 As shown, the unlocking wrench 310 includes a connecting part 311 and an operating part 312, which are generally connected in an L-shape. Optionally, the connecting part 311 is provided with a pivot through hole 314 and a third pivot hole 313; the operating part 312 is provided with an anti-slip protrusion 315. When the unlocking wrench 310 is in its initial state, the connecting part 311 extends basically vertically, and the operating part 312 extends basically horizontally, which makes it convenient for the user to press down the unlocking wrench 310 with one hand.

[0058] Continue to refer to Figure 3 As shown, the elastic element 340 is a torsion spring, which is sleeved on the first rotating shaft 350. One end of the torsion spring abuts against the top cover 332, and the other end of the torsion spring abuts against the unlocking wrench 310. Of course, in other embodiments, the elastic element 340 can also adopt other structures, such as a coil spring, which is disposed between the unlocking wrench 310 and the top cover 332, or between the unlocking wrench 310 and the base 331.

[0059] Regarding the specific structure of the strap 200, in some embodiments, the strap 200 includes two first ends, which respectively pass around the two sides of the backrest 120 and are fixed to the two sides of the bracket 20. This arrangement helps to improve the stability of the backrest 120 during the angle adjustment process, avoids unilateral tilting, and also helps to improve the stability of the backrest 120 when maintaining a certain angle.

[0060] In some embodiments, the first end is fixed, and the second end is movable relative to the backrest 120. The second end passes through the strap lock 300 and extends out of the strap lock 300 along the second direction. Pulling the second end along the second direction can change the angle between the backrest 120 and the support 110.

[0061] In some embodiments, continue to refer to Figure 1 As shown, the tie 200 includes two first tie portions 210 and one second tie portion 220. The two first tie portions 210 are connected to the same end of the second tie portion 220. The second tie portion 220 passes through the tie locking member 300 and forms a second end, while the first tie portions 210 form a first end. Optionally, the second tie portion 220 is a flat band structure, for example, a polypropylene band; the first tie portion 210 is a rope-like structure, for example, a circular rope. Of course, in other embodiments, both the first tie portion 210 and the second tie portion 220 can be flat band structures; or, both the first tie portion 210 and the second tie portion 220 can be rope-like structures.

[0062] In order to improve the movement accuracy of the strap 200 in the first or second direction, in some embodiments, the support device 10 further includes a guide mechanism disposed on the backrest 120 and used to guide the movement of the strap 200.

[0063] In some embodiments, the guiding mechanism includes two guide posts 400 positioned at the center of the backrest 120 and spaced apart, forming a guide gap between the two guide posts 400. A strap locking member 300 is positioned opposite the guide gap. A second strap portion 220 is located on the side of the two guide posts 400 closest to the strap locking member 300. Two first strap portions 210 are respectively positioned around the two guide posts 400. Optionally, the guide posts 400 can be cylindrical or rotating. If the guide post 400 is cylindrical, it is directly fixed to the backrest 120 or rotatably connected to it. If the guide post 400 is a rotating wheel, it is rotatably connected to the backrest 120 via a second rotating shaft. Both guide posts 400 can be cylindrical, both can be rotating wheels, or one can be cylindrical and the other a rotating wheel. (Continue referring to...) Figure 1 As shown, the guide mechanism also includes a cover plate 600, which is spaced apart from the backrest 120, and a guide post 400 is installed between the cover plate 600 and the backrest 120.

[0064] In some embodiments, the guiding mechanism includes two guide hole members 500, which are disposed on two opposite sides of the backrest 120. Two first strap portions 210 are respectively disposed through the guide holes of the two guide hole members 500. Optionally, the guide hole members 500 are fixedly connected to the backrest 120, and the fixing method can be adhesive, screw connection or welding, etc.

[0065] In some embodiments, continue to refer to Figure 1 As shown, the guiding mechanism includes two guide posts 400 positioned at the center of the backrest 120 and spaced apart, and two guide holes 500. A guide gap is formed between the two guide posts 400. The belt locking member 300 is positioned opposite the guide gap. A second belt portion 220 is limited to the side of the two guide posts 400 near the belt locking member 300. Two first belt portions 210 are respectively positioned around the two guide posts 400. The two guide holes 500 are located on two opposite sides of the backrest 120, and the two first belt portions 210 pass through the guide holes of the two guide holes 500 one-to-one.

[0066] The following two specific examples illustrate the adjustment process of the backrest 120.

[0067] Example 1:

[0068] Reference Figure 3 , Figure 4 , Figures 6 to 9 As shown: To adjust the backrest 120 from a sitting position to a semi-reclining position, press the unlock lever 310 and rotate it clockwise along the first rotation point. Figure 3 (As shown in H) rotates, causing the pressure roller 320 to rotate clockwise within the slide groove 301 through the second rotation point. Figure 3 (As shown in G) Rotate to a certain position to disengage the pressure roller 320 from the strap 200, thus unlocking it. Under the weight of the backrest 120, the strap 200 rotates around the guide post 400 and slides along the first direction to lengthen, adjusting the backrest 120 to a semi-reclining position. Then, release the unlocking lever 310, and under the drive of the elastic element 340, the pressure roller 320 contacts and locks the strap 200. Using the same principle, the backrest 120 can be adjusted from a sitting position to a reclining position or from a semi-reclining position to a reclining position.

[0069] Continue to refer to Figures 5 to 7 , Figure 10 and Figure 11As shown: To adjust the backrest 120 from a reclining position to a sitting position, simply pull the strap 200 along the second direction. This will cause the strap 200 to rotate around the guide post 400 and lengthen it along the second direction. After the strap 200 has moved a certain distance along the second direction, the backrest 120 will be adjusted to a sitting position. Using the same principle, the backrest 120 can be adjusted from a semi-reclining position to a sitting position or from a reclining position to a semi-reclining position. By adjusting the length of the strap 200, the backrest 120 can be adjusted to any angle within the specified range.

[0070] Example 2:

[0071] Continue to refer to Figure 12 As shown, in this embodiment, to adjust the position of the backrest 120, it is necessary to unlock it first. Specifically, the unlocking lever 310 is raised to rotate it counterclockwise, thereby causing the pressure roller 320 to rotate counterclockwise a certain position within the slide groove 301 until the pressure roller 320 and the strap 200 disengage from the contact surface, achieving the unlocked state. Afterwards, as needed, the angle between the backrest 120 and the support portion 110 can be increased by pulling down the strap 200 in the first direction, or decreased by pulling down the strap 200 in the second direction.

[0072] The support device 10 has the following advantages: 1. The backrest 120 angle can be adjusted with one hand; 2. It is convenient, simple and quick to operate; 3. The backrest 120 can be adjusted to any angle within the angle range; 4. The backrest 120 angle can be unlocked and locked by adjusting the unlocking surfaces of the pressure roller 320 and the strap 200.

[0073] This utility model also provides a carrier, such as Figures 6 to 11 As shown, the carrier includes a support frame 20 and the aforementioned load-bearing device 10, with the load-bearing device 10 mounted on the support frame 20. The specific structure of the support frame 20 is prior art and will not be detailed here. Figure 6 and Figure 7 As shown, the backrest 120 of the support device 10 is in a seated position at this time; Figure 8 and Figure 9 As shown, the backrest 120 of the support device 10 is in a semi-reclined state at this time; as Figure 10 and Figure 11 As shown, the backrest 120 of the support device 10 is in a reclining position at this time.

[0074] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A supporting device, characterized in that, For fixing to a bracket, the bearing device includes: A load-bearing body, the load-bearing body including a support part and a backrest, the backrest being rotatable relative to the support part; The strap has a first end and a second end, the first end being disposed at the supporting body or the bracket, and the second end being disposed at the backrest. At least one of the first end and the second end is movable relative to the backrest to change the angle between the backrest and the support. A lacing lock has a lacing strap passing through it. The lacing lock has an unlocked state and a locked state. When the lacing lock is in the unlocked state, the lacing strap can move relative to the backrest in a first direction or a second direction. When the lacing lock is in the locked state, the lacing is fixed relative to the backrest, or the lacing can move along the second direction, where the first direction and the second direction are opposite.

2. The bearing device according to claim 1, characterized in that, The strap locking member is provided on the backrest. When the strap locking member is in the unlocked state, the strap moves along the first direction, and the backrest can rotate relative to the support part to increase or decrease the angle between the backrest and the support part. When the strap locking member is in the locked state, the strap can move along the second direction, and the backrest can rotate relative to the support part so that the angle between the backrest and the support part decreases or increases.

3. The bearing device according to claim 1 or 2, characterized in that, The belt locking component includes a roller fixing seat and a pressing roller. The roller fixing seat is disposed on the backrest and has a sliding groove. The end of the pressing roller passes through the sliding groove. When the belt locking member is in the locked state, the pressure roller is located at the bottom end of the groove and presses against the belt; When the lacing locking member switches from the locked state to the unlocked state, the pressure roller moves toward the top of the slide groove and disengages from the lacing.

4. The bearing device according to claim 3, characterized in that, The groove is arc-shaped; When the strap locking member is in the locked state, pulling the strap in the second direction can drive the pressure roller to move toward the top of the groove, causing the pressure roller to disengage from the strap; The inclined extension direction of the slide is gradually closer to the backrest along the first direction.

5. The bearing device according to claim 3, characterized in that, The belt locking component also includes an unlocking wrench, which is rotatably connected to the roller fixing seat. The unlocking wrench has a rotating shaft through hole, and the end of the pressing roller passes through the rotating shaft through hole and the slide groove. Operating the unlocking wrench can move the pressing roller to the top of the slide groove to disengage from the belt. The lacing locking member also includes an elastic element, one end of which is connected to the unlocking wrench. The elastic element has a tendency to cause the pressure roller to return to the bottom end of the groove and press the lacing together.

6. The bearing device according to claim 5, characterized in that, The roller fixing seat has an opening on the side opposite to the backrest, and the unlocking wrench part is blocked at the opening; or, The roller fixing seat includes a base and a top cover, with the top cover covering the top of the base; The slide includes a first rotating waist hole provided on the base and a second rotating waist hole provided on the top cover, and the end of the pressure roller passes through the first rotating waist hole and the first rotating waist hole. The base is provided with a first rotating hole, the top cover is provided with a second rotating hole, the unlocking wrench is provided with a third rotating hole, and the first rotating shaft passes through the first rotating hole, the second rotating hole, and the third rotating hole; The elastic element is a torsion spring, which is sleeved on the first rotating shaft. One end of the torsion spring abuts against the top cover, and the other end of the torsion spring abuts against the unlocking wrench.

7. The bearing device according to claim 1, characterized in that, The strap includes two first ends, which respectively wrap around both sides of the backrest and are fixed to both sides of the bracket; and / or, The first end is fixed, while the second end is movable relative to the backrest; The second end extends through the strap lock in the second direction and protrudes from the strap lock. Pulling the second end in the second direction can change the angle between the backrest and the support.

8. The bearing device according to claim 1, characterized in that, The strap includes two first strap portions and one second strap portion. The two first strap portions are connected to the same end of the second strap portion. The second strap portion passes through the strap locking member and forms the second end. The first strap portion forms the first end. The second strap section has a flat strap structure; And / or, the first tether portion is a rope-like structure.

9. The bearing device according to claim 8, characterized in that, The supporting device further includes a guide mechanism, which is disposed on the backrest and is used to guide the movement of the straps; The guiding mechanism includes two guide posts located at the middle of the backrest and spaced apart, forming a guide gap between the two guide posts. The strap locking member is positioned opposite the guide gap. The second strap portion is located on the side of the two guide posts closer to the strap locking member, and the two first strap portions are respectively arranged to bypass the two guide posts. And / or, the guiding mechanism further includes two guide hole components, which are located on two opposite sides of the backrest, and the two first strap portions pass through the guide holes of the two guide hole components in a corresponding manner.

10. A vehicle, characterized in that, It includes a support frame and a support device as described in any one of claims 1-9, wherein the support device is disposed on the support frame.

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