Bearing device

Abstract

The utility model discloses a bearing device which comprises a supporting framework, the supporting framework comprises a top frame, a bottom frame, side frames, a first connecting base and a driving piece, the bottom frame and the top frame are oppositely arranged up and down, the two side frames are arranged in pairs and can be folded, and the side frames are arranged between the top frame and the bottom frame; the first connecting base is used for connecting the two side frames, the first connecting base is installed on the bottom frame in a sliding mode and has a first position and a second position on a sliding path, and when the first connecting base slides between the first position and the second position, the corresponding side frame is switched between a folded state and an unfolded state; meanwhile, the top frame and the bottom frame are driven to approach and separate in an aligned manner; the driving part is used for driving the first connecting base to slide from the first position to the second position so as to unfold the supporting framework, and compared with a traditional method that a top frame and a bottom frame need to be manually separated, operation is more convenient.

Description

Technical Field

[0001] The present application relates to the technical field of children's products, and in particular to a carrying device that is easy to unfold and operate. Background Art

[0002] Existing children's sleeping baskets, such as the patent document with publication number CN216220972U, discloses a new type of foldable and automatically unfoldable sleeping basket, which includes a front tube (top frame) and a bottom frame, with side guards arranged between the top frame and the bottom frame. The side guards include a first connecting tube, the upper part of the first connecting tube is hinged to the top frame, and the lower part is hinged to a sliding member, which is slidably installed on the bottom frame, wherein the bottom frame is provided with a fixed groove, and the sliding member is movably provided with a locking pin that cooperates with the fixed groove and an unlocking member for unlocking the locking pin. When a single person performs the unfolding operation, one hand is required to press the bottom frame and the other hand is required to hold and lift the top frame. Due to the large size of the top frame, it is laborious to lift it with one hand and the side frames on both sides are not easy to unfold synchronously, and repeated adjustments are required, resulting in cumbersome operation. Utility Model Content

[0003] The present application provides a carrying device that is easy to unfold and operate.

[0004] The present application provides a carrying device having an accommodating space with an open top, including a supporting frame, wherein the supporting frame includes:

[0005] A top frame defining an opening at the top of the accommodating space;

[0006] A bottom frame is arranged vertically opposite to the top frame to provide bottom support for the accommodating space;

[0007] Two foldable side frames arranged in pairs, the side frames being disposed between the top frame and the bottom frame,

[0008] a first connecting seat for connecting the two side frames, the first connecting seat being slidably mounted on the bottom frame and having a first position and a second position on a sliding path, and when the first connecting seat slides between the first position and the second position, the corresponding side frame switches between a folded state and an unfolded state, and simultaneously drives the top frame and the bottom frame to align and move closer and apart;

[0009] A driving member is used to drive the first connecting seat to slide from the first position to the second position to unfold the supporting frame.

[0010] Several optional methods are also provided below, but they are not intended to be additional limitations on the above-mentioned overall solution. They are merely further supplements or optimizations. Under the premise that there are no technical or logical contradictions, each optional method can be combined separately for the above-mentioned overall solution, or multiple optional methods can be combined.

[0011] Optionally, the side frame is hinged to the first connecting seat.

[0012] Optionally, the carrying device includes a locking device for locking the supporting frame to keep it in the expanded state.

[0013] Optionally, the locking device achieves locking by limiting the movement of the driving member.

[0014] Optionally, when the locking device is in a locked state, the driving member is allowed to move in a direction of unfolding the support frame, while preventing the driving member from moving in an opposite direction.

[0015] Optionally, the driving member is a flexible member, and the flexible member expands the supporting frame by pulling the first connecting seat.

[0016] Optionally, the locking device allows the flexible member to move in the pulling direction but prevents it from moving in the opposite direction.

[0017] Optionally, the driving member is a flexible member, and the flexible member expands the supporting frame by pulling the first connecting seat.

[0018] Optionally, the flexible member is a webbing or a rope.

[0019] Optionally, the flexible member has a fixed end and an operating end, and the connection relationship between the flexible member and the first connecting seat adopts one of the following:

[0020] a) the fixed end is fixedly connected to the bottom frame, and the operating end bypasses the first connecting seat and is located on the same side of the first connecting seat as the fixed end;

[0021] b) The fixed end is directly fixedly connected to the first connecting seat.

[0022] Optionally, the locking device includes a lock seat, a lock member rotatably mounted on the lock seat, and an elastic member acting on the lock member to keep it in a locked state, and a channel for the driving member to pass through is formed between the lock member and the lock seat; when the driving member moves in the direction of unfolding the support frame, the driving member drives the lock member to release the lock; when the driving member moves in the opposite direction, the driving member drives the lock member and further clamps the driving member with the lock seat.

[0023] Optionally, the side frame includes a plurality of first side guard bars and a second side guard bar inclined in the same direction, wherein one end of the first side guard bar is connected to the first connecting seat, and the other end is hinged to the top frame;

[0024] The second side guard bar and the first side guard bar are inclined in opposite directions, and one end of the second side guard bar is hinged to one of the first side guard bars, and the other end is hinged to the bottom frame.

[0025] Optionally, the carrying device includes a cloth bag connected between the top frame and the bottom frame and wrapping the side frame, and the cloth bag limits the maximum height of the support frame when it is unfolded.

[0026] The present application also provides a method for using a carrying device, including an unfolding process and a folding process:

[0027] The folding process includes: pressing the top frame downward to move it closer to the bottom frame, so that the side frames are stored therebetween;

[0028] The unfolding process includes: operating the driving member to cause the first connecting seat to slide, the side frame to unfold, and the top frame and the bottom frame to separate.

[0029] The carrying device of the present application, during the unfolding operation, operates the driving member to drive the first connecting seat to slide, driving the side frames on both sides to unfold synchronously, thereby driving the top frame and the bottom frame to separate from each other. Compared with the traditional structure, which requires separating the top frame and the bottom frame, the unfolding operation is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a structural diagram of a carrying device according to an embodiment of the present application;

[0031] Figure 2 This is a structural view of the carrying device of the first embodiment of the present application in the unfolded state;

[0032] Figure 3 for Figure 2 Structural view of the middle load-bearing device when folded;

[0033] Figure 4 for Figure 2 Structural view of the middle load-bearing device in the folded state;

[0034] Figure 5 This is a structural diagram of another connection method of the flexible member of the carrying device of the first embodiment of the present application;

[0035] Figure 6 A top view of a support frame of a load-bearing device according to an embodiment of the present application;

[0036] Figure 7 This is a structural view of a locking device according to an embodiment of the present application;

[0037] Figure 8is a cross-sectional view of a locking device in a locked state according to an embodiment of the present application;

[0038] Figure 9 for Figure 8 A cross-sectional view of the locking member of the locking device rotating in the unlocking direction;

[0039] Figure 10 This is a structural view of the carrying device in the unfolded state according to the second embodiment of the present application;

[0040] Figure 11 This is a structural view of the carrying device in the unfolded state according to the third embodiment of the present application;

[0041] Figure 12 This is a structural view of the carrying device in the fourth embodiment of the present application in the unfolded state;

[0042] Figure 13 for Figure 12 Structural view of the middle load-bearing device during folding.

[0043] The reference numerals in the figures are described as follows:

[0044] 1000, carrying device;

[0045] 100, supporting frame; 101, dividing line; 102, connecting line; 110, top frame; 120, bottom frame;

[0046] 130, first connecting seat; 131, horizontal rod; 132, vertical rod; 133, first sliding member; 134, second connecting seat; 135, second sliding member;

[0047] 140, side frame; 141, first side stop; 142, second side stop; 143, third side stop; 144, fourth side stop; 145, fifth side stop; 146, sixth side stop; 147, seventh side stop;

[0048] 150, flexible member; 151, fixed end; 152, operating end; 160, locking device; 161, lock seat; 162, locking member; 163, channel; 164, locking teeth;

[0049] 190, storage space; 200, cloth bag;

[0050] 310, first pivot point; 320, second pivot point. DETAILED DESCRIPTION

[0051] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0052] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. When a component is referred to as being "disposed on" another component, it may be directly disposed on the other component or there may be an intermediate component.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application pertains. The terms used herein in the specification of this application are for the purpose of describing specific embodiments only and are not intended to limit this application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0054] In this application, the terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly indicate the number or order of the technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0055] See Figures 1 to 7 The present application provides a carrying device 1000, shown in the figure as a child's sleep cot, having an open-topped accommodation space 190 and including a support frame 100. The support frame 100 has relative folded and unfolded positions. The carrying device 1000 includes, but is not limited to, the child's sleep cot provided herein, and may also be a child's bed, stroller, or the like.

[0056] The support frame 100 includes a top frame 110, a bottom frame 120, paired side frames 140, a first connecting base 130 connecting the side frames 140, and a drive element. The top frame 110 defines an opening at the top of the accommodating space 190, which is used to allow children or objects to enter and exit the accommodating space. The structure of the top frame 110 includes but is not limited to a closed annular frame, which is an oblong in the figure. The bottom frame 120 provides bottom support for the accommodating space 190 and is arranged above and below the top frame 110.

[0057] The side frame 140 is a foldable structure and has a folded state and an unfolded state corresponding to the support frame 100. The side frame 140 is set between the top frame 110 and the bottom frame 120, and drives the top frame 110 and the bottom frame 120 to align and move closer when folded, and drives the top frame 110 and the bottom frame 120 to align and move apart when unfolded.

[0058] The first connecting base 130 is used to connect the two side frames 140. It is slidably mounted on the bottom frame 120 and has a first position and a second position along its sliding path. When the first connecting base 130 slides between the two positions, the corresponding side frames switch between a folded state and an unfolded state. A driving member is used to drive the first connecting base 130 to slide from the first position to the second position to unfold the side frames 140.

[0059] For the convenience of description, this application is Figures 2 to 4 The illustrated side frames are provided as an example: In the first embodiment, the X direction in the figure is the longitudinal direction, and the two side frames 140 are arranged opposite each other along the width direction. The side frames 140 include multiple first side bars 141, each of which is inclined in the same direction. For example, the top frame 110 and the bottom frame 120 are at a certain angle. For another example, if the top frame 110 and the bottom frame 120 are parallel to each other, then the first side bars 141 are also parallel to each other. The first connecting base 130 is connected to all the first side bars 141 to achieve synchronous movement of the first side bars 141, ensuring that the side frames 140 on both sides can be folded or unfolded simultaneously. Furthermore, the side frames 140 include second side bars 142, one end of which is hinged to the first side bars 141 and the other end is hinged to the bottom frame 120. The second side bars 142 and the first side bars 141 are inclined in opposite directions, thereby improving the structural stability of the support frame 100 in the unfolded state.

[0060] In actual operation, when the support frame 100 is in the folded state, the operating drive member drives the first connecting seat 130 to move in the first direction, and the upper portion of the first side blocking rod 141 moves upward to drive the top frame 110 away from the bottom frame 120 until the support frame 100 is in the unfolded state. When folding, the top frame 110 is pressed downward, causing the first connecting seat 130 to slide in the second direction until the support frame 100 is in the folded state. Compared with the existing technology, the unfolding operation is more convenient.

[0061] The carrying device 1000 also includes a cloth bag 200 connected between the top frame 110 and the bottom frame 120 and wrapping the side frame 140. In the unfolded state, the cloth bag 200 pulls the top frame 110 and the bottom frame 120 so that the support frame 100 is unfolded to the maximum height, indirectly limiting the first connecting seat 130 from continuing to move along the pulling direction.

[0062] The first connecting seat 130 can be a crossbar, a frame composed of multiple rods, or a component that is slidably mounted on the bottom frame. Figure 6 As shown, in one embodiment, the first connecting seat 130 is a frame structure, including two cross bars 131 corresponding to a pair of first side guards 141, and at least one longitudinal bar 132 connected between the two cross bars 131. The ends of the cross bars 131 are slidably engaged with the bottom frame 120, and the two side frames 140 are hingedly connected to the first connecting seat 130. For example, a pair of first side guards 141 symmetrically arranged in the two side frames 140 are hingedly connected to one of the cross bars 131, and the other pair of first side guards 141 are hingedly connected to the other cross bar 131. For another example, the first connecting seat 130 includes a sliding member slidably engaged with the bottom frame 120 and a transverse member connecting the two sliding members, and the first side guard 141 on the same side is hingedly connected to the sliding member.

[0063] Furthermore, the carrying device 1000 also includes a locking device 160 for locking the supporting frame 100 to keep it in the expanded state. The lock can be set between the first connecting seat 130 and the bottom frame 120, that is, locking the first connecting seat 130.

[0064] In some embodiments, locking device 160 achieves locking by restricting the movement of a driver. It should be emphasized that locking device 160 acts on the driver. Specifically, the driver is a flexible member 150, which pulls on first connector 130 to unfold support frame 100. Flexible member 150 is in the form of a belt, a line, or a combination of the two, such as nylon webbing or steel wire, or a combination of the two. When the support device of the present application is unfolded, locking device 160 acts on the corresponding position of flexible member 150 to maintain support frame 100 in the unfolded state, preventing collapse due to improper locking, which could cause a safety accident.

[0065] The flexible member 150 has a fixed end 151 and an operating end 152. The operating end 152 is exposed outside the support frame 100. During the pulling and unfolding operation, the length of the operating end 152 exposed outside the support frame 100 increases. The connection relationship between the flexible member 150 and the first connecting seat 130 adopts at least one of the following:

[0066] a) The fixed end 151 is fixedly connected to the bottom frame 120, and the operating end 152 bypasses the first connecting seat 130 and is located on the same side of the first connecting seat 130 as the fixed end 151 (for example Figure 2 ), preferably, the operating end 152 bypasses one of the cross bars 131, and the outer contour of the contact portion between the cross bar 131 and the flexible member 150 is circular, such as a round rod, to facilitate the movement of the flexible member 150;

[0067] b) The fixed end 151 is fixedly connected to the first connection base 130 (eg Figure 5 ).

[0068] The locking device 160 allows the flexible member 150 to move in the pulling direction (corresponding to the first connecting seat moving in the first direction), while preventing the flexible member 150 from moving in the opposite direction (i.e., the retreat direction described below) (corresponding to the first connecting seat moving in the second direction). The locking device 160 has:

[0069] In the locked state, the flexible member 150 is allowed to move in the pulling direction in one direction, that is, the flexible member 150 is restricted from moving in the retreating direction;

[0070] In the unlocked state, the flexible member 150 is allowed to move in two directions.

[0071] like Figures 7 to 9 As shown, the locking device 160 includes a lock base 161, a lock member 162, and an elastic member acting on the lock member 162. A channel 163 is formed between the lock member 162 and the lock base 161 for the flexible member 150 to pass through. When the locking device 160 is locked, the lock member 162 and the lock base 161 clamp the flexible member 150, and in this state, the lock member 162 can only rotate in one direction. Specifically, the lock member 162 is rotatably mounted on the lock base 161, and an elastic member (such as a torsion spring) is provided between the two. The lock member 162 has a locking tooth 164, and the locking tooth 164 and the lock base 161 provide a clamping force.

[0072] The lock member 162 rotates relative to the lock base 161 and has an unlocking direction ( Figure 9 (as indicated by the arrow in the middle) and locking direction, as shown in Figure 9 As shown, when the operating end 152 of the flexible member 150 moves in the pulling direction, a force is applied to the lock member 162 to rotate in the unlocking direction, thereby reducing or even eliminating the clamping force of the lock member 162 and the lock seat 161 on the flexible member 150; Figure 8 As shown, when the operating end 152 of the flexible member 150 moves in the retracting direction, a force is applied to the lock member to rotate in the locking direction, gradually increasing the clamping force of the lock member 162 and the lock seat 161 on the flexible member 150, similar to a self-locking mechanism. This structure realizes the aforementioned unidirectional movement of the flexible member 150, allowing the locking device 160 to act on any position of the flexible member 150, ensuring that the support frame remains in the unfolded state, thereby ignoring the influence of errors caused by processing and assembly. Before folding the support device, the lock member 162 is manually pressed to unlock it, and then pressure is applied to the top frame 110 to perform the folding operation.

[0073] The locking device 160 is positioned at an edge of the bottom frame 120, such as one side in the X direction as shown. In one embodiment, the locking member 162 is restricted from further rotation in the locking direction when locked. This restriction may be achieved by providing a stopper on the lock base 161 that abuts against the locking member 162. The stopper may be a boss on the lock base 161. In one embodiment, a connection structure is provided between the flexible member 150 and the fabric bag 200 to secure the flexible member 150. The connection mechanism, such as a Velcro fastener, prevents the portion of the flexible member 150 exposed outside the fabric bag 200 from dangling.

[0074] In the second embodiment, as Figure 10 As shown, the side frame 140 includes a first sliding member 133 slidably mounted on the top frame 110, and a third side bar 143. The third side bar 143 is hingedly connected to the first side bar 141 at or near the middle thereof, with one end hinged to the first sliding member 133 and the other end hinged to the bottom frame 120. The third side bar 143 and the first side bar 141 have opposite inclination directions. The first sliding member 133 may be a pin connected to the third side bar 143, and the top frame 110 is provided with a slot for the pin to slide. The flexible member 150 and the locking device are similar to those of the previous embodiment.

[0075] In the third embodiment, Figure 11 As shown, the side frame 140 includes a second connecting seat 134 slidably mounted on the bottom frame 120, and a fourth side bar 144. The upper portion of the fourth side bar 144 is hinged to the top frame 110, and the lower portion is hinged to the second connecting seat 134. The fourth side bar 144 and the first side bar 141 are arranged on opposite sides and tilted in opposite directions. The structure of the second connecting seat 134 is similar to that of the first connecting seat 130. Furthermore, the upper portions of the fourth side bar 144 and the first side bar 141 are hinged at the same location. The structure of the second connecting seat 134 is similar to that of the first connecting seat 130, and the connection method of the flexible member 150 is, for example, that the fixed end 151 is connected to the crossbar of the second connecting seat 134, and the operating end 152 bypasses the crossbar of the first connecting seat 130.

[0076] In the fourth embodiment, Figure 12 and Figure 13As shown, the side frame 140 includes a plurality of pairs of scissor rods connected in series, and each pair of scissor rods is pivotally connected and / or slidingly fitted. Specifically, the side frame 140 is formed by connecting two pairs of scissor rods in series, and each pair of scissor rods is composed of two connecting rods that cross and pivot with each other. The side frame 140 includes a first side baffle 141, a fifth side baffle 145, a sixth side baffle 146 and a seventh side baffle 147. The first side baffle 141 is provided with a first connecting seat 130 (obstructed and not visible in the figure), the fifth side baffle 145 is provided with a second sliding member 135, and the second sliding member 135 is slidably arranged on the top frame 110, wherein the second sliding member 135 can be a pin connected to the fifth side baffle 145, and the corresponding top frame 110 is provided with a slide groove for the pin to slide. The top of the sixth side baffle 146 is hinged to the top frame 110, and the bottom of the seventh side baffle 147 is hinged to the bottom frame 120.

[0077] The first side bar 141 and the fifth side bar 145 form a pair of scissor bars, while the sixth side bar 146 and the seventh side bar 147 form a pair of scissor bars. The two pairs of scissor bars are symmetrically arranged relative to the dividing line 101. The ends of the two pairs of scissor bars are pivotally connected to each other at a first pivot point 310. The two pairs of scissor bars are pivotally connected at a second pivot point 320. Each side bar has a center point. The pivot point of each side bar is offset to one side of the center point, which can also be understood as a line 102 connecting the center points of the pair of side bars, with all pivot points located between the two lines 102. The pivot point (second pivot point 320) divides the side bar into two sections of unequal lengths, with the shorter section located closer to the center of the load-bearing device 1000 and the longer section located further away from the center of the load-bearing device 1000. The flexible member 150 and the locking device are described with reference to the aforementioned embodiments.

[0078] The present application also provides a method for using a carrying device, wherein the carrying device adopts the carrying device 1000 provided in the present application, and the method for using the carrying device includes an unfolding process and a folding process, wherein the folding process includes: pressing down the top frame 110 to make it move closer to the bottom frame 120, folding the side frames 140 and storing them between the two, and before pressing down, providing support to the bottom frame 120, for example, placing the carrying device 1000 on a table for folding;

[0079] The unfolding process includes: operating the driving member to cause the first connecting seat 130 to slide, the side frame 140 to unfold, and the top frame 110 and the bottom frame 120 to separate. When operating the driving member, pressure is applied to the bottom frame 120. For example, the operator presses the bottom frame 120 with one hand and operates the driving member with the other hand. Combined with the aforementioned driving member being a flexible member, the flexible member can be quickly pulled to unfold the support frame 100. The cloth bag 200 indirectly restricts the flexible member from continuing to move in the pulling direction in the unfolded state, and the locking device 160 restricts the flexible member from moving in the retracting direction at any time. The unfolding operation is more convenient and can be unfolded in one step. When folding, one hand first unlocks the locking device 160, and at the same time, the hand applies pressure to the bottom frame 120 to prevent the bottom frame 120 from moving freely, and the other hand presses down the top frame 110.

[0080] The carrying device of the present application, during the unfolding operation, pulls the flexible member to pull the first connecting seat to slide, driving the first side guard rod to move to unfold the side frame, thereby driving the top frame away from the bottom frame. Finally, when the supporting frame is in the unfolded state, the locking device acts on the corresponding position of the flexible member to keep the supporting frame in the unfolded state at all times, avoiding folding due to improper locking, which may cause a safety accident.

[0081] The technical features of the above embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. When technical features in different embodiments are reflected in the same figure, it can be regarded as that figure also discloses the combination examples of the various embodiments involved.

[0082] The above embodiments merely illustrate several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person skilled in the art could make numerous variations and improvements without departing from the spirit of the present application, all of which fall within the scope of protection of the present application.

Claims

1. A carrying device having a receiving space with an open top and including a supporting frame, characterized in that: The supporting frame comprises: A top frame defining an opening at the top of the accommodating space; A bottom frame is arranged vertically opposite to the top frame to provide bottom support for the accommodating space; Two foldable side frames arranged in pairs, the side frames being disposed between the top frame and the bottom frame, a first connecting seat for connecting the two side frames, the first connecting seat being slidably mounted on the bottom frame and having a first position and a second position on a sliding path, and when the first connecting seat slides between the first position and the second position, the corresponding side frame switches between a folded state and an unfolded state, and simultaneously drives the top frame and the bottom frame to align and move closer and apart; A driving member is used to drive the first connecting seat to slide from the first position to the second position to unfold the supporting frame.

2. The carrying device according to claim 1, characterized in that: A locking device is included to lock the support frame so that it remains in the expanded state.

3. The carrying device according to claim 2, characterized in that: The locking device achieves locking by limiting the movement of the driving member.

4. The carrying device according to claim 3, characterized in that: When the locking device is in a locked state, the driving member is allowed to move in a direction of unfolding the support frame, while preventing the driving member from moving in an opposite direction.

5. The carrying device according to claim 4, characterized in that: The driving member is a flexible member, and the flexible member expands the supporting frame by pulling the first connecting seat.

6. The carrying device according to claim 5, characterized in that: The flexible member is a webbing or a rope.

7. The carrying device according to claim 6, characterized in that: The flexible member has a fixed end and an operating end, and the connection relationship between the flexible member and the first connecting seat adopts one of the following: a) the fixed end is fixedly connected to the bottom frame, and the operating end bypasses the first connecting seat and is located on the same side of the first connecting seat as the fixed end; b) The fixed end is directly fixedly connected to the first connecting seat.

8. The carrying device according to claim 5, characterized in that: The locking device includes a lock seat, a lock member rotatably mounted on the lock seat, and an elastic member acting on the lock member to keep it in a locked state, and a channel for the driving member to pass through is formed between the lock member and the lock seat; When the driving member moves in the direction of unfolding the supporting frame, the driving member drives the locking member to release the lock; When the driving member moves in the opposite direction, the driving member drives the locking member and further clamps the driving member with the lock seat.

9. The carrying device according to claim 1, characterized in that: The side frame includes a plurality of first side guard bars inclined in the same direction, and a second side guard bar, wherein one end of the first side guard bar is connected to the first connecting seat, and the other end is hinged to the top frame; The second side guard bar and the first side guard bar are inclined in opposite directions, and one end of the second side guard bar is hinged to one of the first side guard bars, and the other end is hinged to the bottom frame.

10. The carrying device according to claim 1, characterized in that: A cloth bag is included which is connected between the top frame and the bottom frame and wraps the side frame, and the cloth bag limits the maximum height of the support frame when it is unfolded.

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