Quick-folding and quick-unfolding basket

Abstract

A basket capable of being rapidly folded and unfolded comprises a first fence frame used for preventing a carrier from sliding out, a second fence frame used for preventing the carrier from sliding out is arranged above the first fence frame, and a support folding mechanism used for enabling the first fence frame and the second fence frame to be rapidly folded and unfolded is connected between the first fence frame and the second fence frame. According to the lifting basket, automatic locking of the cross support can be achieved by pulling the lifting handle upwards, rapid unfolding and locking can be achieved without other steps, when folding is needed, the lower fence pull handle is pulled inwards relatively, the cross support is unlocked, the cross support automatically moves downwards to be folded under the action of gravity, rapid folding is achieved, an operator can use the lifting basket conveniently, and the experience of the operator is improved.

Description

Technical Field

[0002] The utility model relates to the field of carrying tools, in particular to a quick - retracting and quick - unfolding carrying basket.

Background Art

[0004] With the improvement of people's living standards, parents can take their babies out using a carrying basket, which is relatively safe and comfortable for babies and convenient for parents when going out with babies. The carrying basket can be fixedly installed on a car seat or a stroller or can be carried by hand. In cities, more and more people keep pets. However, when taking pets out, there are unsafe factors if they are led by a rope when crossing the road or in the downtown area. A pet stroller can effectively solve the problem of taking pets out without using a leash. Put the pet in the carrying basket and then place the carrying basket on the stroller. The carrying basket can hold a baby or a pet, preventing the baby or pet from moving around randomly. The carrying basket is often used with a stroller, making it convenient to move. In the prior art, the design structure of the carrying basket is relatively complex, requiring multiple steps of operation to use, consuming a long time and affecting the user experience.

Content of the Utility Model

[0006] To overcome the problem that the above - mentioned carrying basket requires multiple steps of operation to use and consumes a long time, the technical problem to be solved by the utility model is to provide a quick - retracting and quick - unfolding carrying basket. The utility model is realized by the following technical solutions:

[0007] A quick - retracting and quick - unfolding carrying basket includes a first fence frame for preventing an object from sliding out. A second fence frame for preventing an object from sliding out is arranged above the first fence frame. A bracket folding - and - unfolding mechanism for quickly folding and unfolding the first fence frame and the second fence frame is connected between the first fence frame and the second fence frame. The bracket folding - and - unfolding mechanism includes a cross - bracket mechanism that can slide on the first fence frame and the second fence frame and support the first fence frame and the second fence frame when unfolded. The middle of the cross - bracket mechanism is hinged with a first bracket and a second bracket. Two ends of the first bracket are respectively movably connected to the first fence frame and the second fence frame. Two ends of the second bracket are respectively movably connected to the first fence frame and the second fence frame. At least one end of the first bracket and the second bracket can slide on the first fence frame and the second fence frame. A clamping and locking mechanism for locking the first fence frame and the second fence frame when unfolded and unlocking them when folded is arranged between the cross - bracket mechanism and the first fence frame and the second fence frame.

[0008] For the quick - retracting and quick - unfolding carrying basket as described above, one end of at least one bracket of the cross - bracket mechanism is hinged to one of the first fence frame and the second fence frame, and the other end away from the hinge is sleeved on the other of the first fence frame and the second fence frame, and at least one of the ends for sleeving is connected to the clamping and locking mechanism.

[0009] A fast - folding and fast - unfolding basket as described above. The clamping and locking mechanism includes a clamping and fixing part that sleeved on both sides of the first fence frame and is fixed to the first fence frame. On the clamping and fixing part, there is a sliding linkage part that can move along the axial length extension line of the clamping and fixing part within the clamping and fixing part. On the sliding linkage part, there is a clamping part that extends out of the clamping and fixing part to clamp the cross - bracket mechanism and the first fence frame when the first fence frame and the second fence frame are unfolded, and retracts into the clamping and fixing part to unlock the clamping of the cross - bracket mechanism and the first fence frame when the first fence frame and the second fence frame are folded. The sliding linkage part is connected with a pulling part that can drive the sliding linkage part to move.

[0010] A fast - folding and fast - unfolding basket as described above. The clamping and fixing part includes a first mounting hole connecting the first fence frames on both sides and a telescopic opening that enables the clamping part to extend out or retract into the clamping and fixing part. On the side, there is a second mounting hole that can install a relative sliding connecting part to link and limit the moving distance of the clamping part and the sliding linkage part when the clamping part and the sliding linkage part move.

[0011] A fast - folding and fast - unfolding basket as described above. The sliding linkage part includes a linkage groove for accommodating the clamping part. The linkage groove is connected with an inclined mounting hole that enables the clamping part to extend out or retract into the linkage groove in only one direction when the sliding linkage part moves along the axial length extension line of the clamping and fixing part. The sliding linkage part is provided with a third mounting hole that can enable a fastener to connect the first fence frame, the clamping and fixing part and the sliding linkage part so that the sliding linkage part moves a certain distance. One end of the sliding linkage part is provided with a fourth mounting hole for connecting the pulling part.

[0012] A fast - folding and fast - unfolding basket as described above. The clamping part includes a fifth mounting hole for connecting the clamping part, the sliding linkage part and the clamping and fixing part to form a connecting whole and limiting the movement of the clamping part in a single direction, and a mounting post for installing an elastic member to reset the clamping part after retracting into the clamping and fixing part. One end of the clamping part is provided with a clamping groove for the cross - bracket mechanism.

[0013] A fast - folding and fast - unfolding basket as described above. The pulling part includes a rope. One end of the rope is connected to the sliding linkage part, and the end far from the sliding linkage part is connected to a pull handle for pulling the sliding linkage part to make the clamping part retract into the clamping and fixing part during folding.

[0014] A fast - folding and fast - unfolding basket as described above. One end of the first bracket is hinged to the first fence frame, and the end far from the first fence frame is sleeved on the second fence frame. One end of the second bracket is hinged to the second fence frame, and the end far from the second fence frame is sleeved on the first fence frame.

[0015] A quick - retracting and quick - expanding carrycot as described above, the first support includes a first support rod, the first support rod is hinged with a first sleeve that can slide in the second fence frame, the second support includes a second support rod, the second support rod is hinged with a second sleeve that can slide in the first fence frame, when the second sleeve is expanded, it is sleeved on the snap - fixing part, the second sleeve includes a protrusion groove that can push the snap - fitting member to retract into the snap - fixing part when the first support is expanded and moved, and a snap - hole that can lock the snap - fitting member and the second sleeve when expanded.

[0016] A quick - retracting and quick - expanding carrycot as described above, the first fence frame is connected to a carrycot base for supporting the carrier, the carrycot base includes a bottom plate for keeping the trolley stable, the lower part of the bottom plate is connected with a bottom support for supporting the bottom plate, the lower part of the bottom plate is connected with a front socket for connecting and positioning with one side of the trolley, and the lower part of the bottom plate is connected with a bottom plate seat for connecting and positioning with the other side of the trolley.

[0017] Compared with the prior art, the present utility model has the following advantages:

[0018] 1. By pulling up the handle of the carrycot, the automatic locking of the cross - support can be realized. Without other steps, it can be quickly unfolded and locked. When folding is needed, relatively pull the handle of the fence frame inward to unlock the cross - support, and the cross - support automatically moves down and folds under the action of gravity, realizing quick folding, which is convenient for the operator to use and improves the operator experience.

[0019] 2. When the carrycot is used in combination with a trolley, the carrycot base and the trolley frame do not require a complex installation and disassembly process like other carrycots to be used. This carrycot only needs to be simply positioned and installed on the trolley to be used, and there is no need for a complex disassembly process to separate the connection between the carrycot and the trolley and place it in a storage place when not in use.

[0020] 3. The carrycot can be unfolded and automatically locked with one hand, enabling the operator to more conveniently operate the carrycot with one hand and the trolley with the other hand, and can load animals or objects, with strong versatility.

Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below.

[0023] Figure 1 Schematic diagram of the three - dimensional structure of a quick - retracting and quick - expanding carrycot of the present utility model Figure 1 ;

[0024] Figure 2 Schematic diagram of the folding structure of a quick - retracting and quick - expanding carrycot of the present utility model Figure 2 ;

[0025] Figure 3 Schematic diagram of enlarged view A of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 3 ;

[0026] Figure 4 Schematic diagram of enlarged view B of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 4 ;

[0027] Figure 5 Schematic diagram of enlarged view C of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 5 ;

[0028] Figure 6 Schematic diagram of enlarged view D of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 6 ;

[0029] Figure 7 Schematic diagram of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 7 ;

[0030] Figure 8 Schematic diagram of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 8 ;

[0031] Figure 9 Exploded view schematic diagram of the clamping and locking mechanism of a quickly retractable and expandable basket of the present utility model Figure 9 ;

[0032] Figure 10 Schematic diagram of the clamping and fixing part of a quickly retractable and expandable basket of the present utility model Figure 10 ;

[0033] Figure 11 Schematic diagram of the sliding linkage part of a quickly retractable and expandable basket of the present utility model Figure 11 One;

[0034] Figure 12 Schematic diagram of the sliding linkage part of a quickly retractable and expandable basket of the present utility model Figure 12 Two;

[0035] Figure 13 Schematic diagram of the clamping part of a quickly retractable and expandable basket of the present utility model Figure 13 Three;

[0036] Figure 14 Schematic diagram of the second sleeve of a quickly retractable and expandable basket of the present utility model Figure 14 Four;

[0037] Figure 15 Schematic diagram of the base of a quickly retractable and expandable basket of the present utility model Figure 15 Five.

Detailed implementation manners

[0039] In order to make the technical problems, technical solutions and beneficial effects solved by the present application clearer and more understandable, the present application will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0040] Please refer to Figures 1 to 12 , a quickly retractable and expandable carry basket, including a first fence frame 1 for preventing an object from slipping out. A second fence frame 2 for preventing an object from slipping out is provided above the first fence frame 1. A bracket folding mechanism 3 for quickly folding and unfolding the first fence frame 1 and the second fence frame 2 is connected between the first fence frame 1 and the second fence frame 2. The bracket folding mechanism 3 includes a cross-bracket mechanism 4 that can slide on the first fence frame 1 and the second fence frame 2 and support the first fence frame 1 and the second fence frame 2 when unfolded. The middle of the cross-bracket mechanism 4 is hinged with a first bracket 41 and a second bracket 42. Two ends of the first bracket 41 are respectively movably connected to the first fence frame 1 and the second fence frame 2. Two ends of the second bracket 42 are respectively movably connected to the first fence frame 1 and the second fence frame 2. At least one end of the first bracket 41 and the second bracket 42 can slide on the first fence frame 1 and the second fence frame 2. A clamping and locking mechanism 5 for locking the first fence frame 1 and the second fence frame 2 when unfolded and unlocking them when folded is provided between the cross-bracket mechanism 4 and the first fence frame 1 and the second fence frame 2. So that the whole structure can be folded up when not in use, occupying less space and being convenient for storage and carrying. Through the clamping and locking mechanism 5, the user can quickly unfold or fold the whole structure, simplifying the operation process and improving the use convenience. In the unfolded state, the cross-bracket mechanism 4 can provide stable support to prevent the carrier from slipping out and ensure the safety during use. The clamping and locking mechanism 5 locks the cross-bracket mechanism 4 when unfolded to ensure the stability of the structure during use; while unlocking when folded, so that the cross-bracket mechanism 4 can slide smoothly to realize the folding function.

[0041] Further, as a preferred implementation manner of this solution rather than a limitation, after the middle parts of the first bracket 41 and the second bracket 42 are hinged, there are a total of four end points. One end point is hinged to the first fence frame 1 and the second fence frame 2, and the other three end points are sleeved on the first fence frame 1 and the second fence frame 2. At least one of the three sleeved end points can be locked and connected to the clamping and locking mechanism 5 when the first fence frame 1 and the second fence frame 2 are unfolded, and unlocked when folded. The clamping and locking mechanism 5 locks the cross-bracket mechanism 4 when unfolded to ensure the stability of the structure during use; while unlocking when folded, so that the cross-bracket mechanism 4 can slide smoothly to realize the folding function.

[0042] Further, as a preferred implementation manner of this solution rather than a limitation, after the middle parts of the first bracket 41 and the second bracket 42 are hinged, there are a total of four end points. The four end points are sleeved on the first fence frame 1 and the second fence frame 2 so that the first bracket 41 and the second bracket 42 slide on the first fence frame 1 and the second fence frame 2. At least two of the four sleeved end points can lock and engage with the locking mechanism 5 when the first fence frame 1 and the second fence frame 2 are unfolded. The locking mechanism 5 locks the cross-bracket mechanism 4 when unfolded and unlocks and disengages when folded, ensuring the stability of the structure during use; and unlocking when folding, so that the cross-bracket mechanism 4 can slide smoothly to achieve the folding function.

[0043] Further, as a preferred implementation manner of this solution rather than a limitation, one end of at least one bracket of the cross-bracket mechanism 4 is hinged to one of the first fence frame 1 and the second fence frame 2, and the other end away from the fixed hinge is sleeved on the other of the first fence frame 1 and the second fence frame 2. At least one of the ends for sleeving is connected to the locking mechanism 5. It is determined that one end of a bracket in the cross-bracket mechanism is hinged to one of the first fence frame and the second fence frame, and the other end is sleeved on the other of the first fence frame and the second fence frame. The locking mechanism 5 locks the cross-bracket mechanism 4 when unfolded, ensuring the stability of the structure during use; and unlocking when folding, so that the cross-bracket mechanism 4 can slide smoothly to achieve the folding function.

[0044] Further, as a preferred implementation manner of this solution rather than a limitation, the locking mechanism 5 includes a locking and fixing part 51 sleeved on both sides of the first fence frame 1 and fixed to the second fence frame 2. On the locking and fixing part 51, there is a sliding linkage part 52 that can move along the axial length extension line of the locking and fixing part 51 within the locking and fixing part 51. On the sliding linkage part 52, there is a engaging part 53 that protrudes from the locking and fixing part 51 to engage the cross-bracket mechanism 4 and the first fence frame 1 when the first fence frame 1 and the second fence frame 2 are unfolded and retracts into the locking and fixing part 51 to unlock the engagement between the cross-bracket mechanism 4 and the first fence frame 1 when the first fence frame 1 and the second fence frame 2 are folded. The sliding linkage part 52 is connected to a pulling part 54 that can drive the sliding linkage part 52 to move. The locking and fixing part 51 is sleeved on both sides of the first fence frame 1 and fixed to the second fence frame 2, forming a compact overall structure and reducing the occupied space. By driving the sliding linkage part 52 to move through the pulling part 54, the protrusion and retraction of the engaging part 53 are controlled, simplifying the operation process, enabling the user to easily complete the unfolding and folding of the fence frame. The engaging part 53 can automatically protrude from the locking and fixing part 51 when the fence frame is unfolded, engaging the cross-bracket mechanism 4 and the first fence frame 1 to ensure the stability of the structure. Through the linkage mechanism, the protrusion and retraction actions of the engaging part 53 are ensured to be accurate.

[0045] Further, as a preferred implementation manner rather than a limitation of this solution, the clamping and fixing portion 51 includes a first mounting hole 511 connecting the first fence frames 1 on both sides and a telescopic opening 512 enabling the clamping member 53 to extend or retract into the clamping and fixing portion 51. The side is provided with a second mounting hole 513 for installing a sliding connecting member to limit the moving distances of the clamping member 53 and the sliding linkage portion 52 in a linkage connection when the clamping member 53 and the sliding linkage portion 52 move. The sliding connecting member is a bolt. The first mounting hole 511 is used to connect the clamping and fixing portion 51 to the first fence frames 1 on both sides to ensure the firmness and stability of the entire structure and prevent loosening or shaking during use. The design of the telescopic opening 512 enables the clamping member 53 to smoothly extend or retract into the clamping and fixing portion 51 to ensure the smoothness of the movement of the clamping member. The second mounting hole 513 is used to install the sliding connecting member. When the clamping member 53 and the sliding linkage portion 52 move, the sliding connecting member can play a limiting role to ensure that the clamping member and the sliding linkage portion move within a predetermined track and avoid damage caused by excessive extension or contraction.

[0046] Further, as a preferred implementation manner rather than a limitation of this solution, the sliding linkage portion 52 includes a linkage groove 521 for accommodating the clamping member 53. The linkage groove 521 communicates with an inclined mounting hole 522 that enables the clamping member 53 to extend or retract into the linkage groove 521 only in a single direction when the sliding linkage portion 52 moves along the axial length extension line of the clamping and fixing portion 51. The sliding linkage portion 52 is provided with a third mounting hole 523 that enables a fastening member to connect the first fence frame 1, the clamping and fixing portion 51, and the sliding linkage portion 52 so that the sliding linkage portion 52 moves a certain distance. One end of the sliding linkage portion 52 is provided with a fourth mounting hole 525 for connecting a pulling portion. The design of the linkage groove 521 provides an accurate movement track for the clamping member 53 to ensure the smoothness and consistency of the clamping member when extending or retracting. The design of the inclined mounting hole 522 enables the clamping member 53 to move only in a single direction when the sliding linkage portion 52 moves along the axial length extension line of the clamping and fixing portion 51, thus avoiding unnecessary lateral displacement and improving the reliability and stability of the entire structure. The third mounting hole 523 enables the sliding linkage portion 52 to be connected to the first fence frame 1 and the clamping and fixing portion 51 through a fastening member. The fastening member is a screw, allowing the sliding linkage portion to move within a certain range. The design of the linkage groove 521 and the inclined mounting hole 522 enables the sliding linkage portion 52 to complete its function in a relatively small space, making the entire device more compact and not occupying too much space.

[0047] Further, as a preferred implementation manner rather than a limitation of this solution, the engaging member 53 includes a fifth mounting hole 531 for connecting the engaging member 53, the sliding linkage portion 52, and the engaging and fixing portion 51 to form a connected whole and restricting the movement of the engaging member 53 in a single direction, and a mounting post 532 for mounting an elastic member 81 to reset the engaging member 53 after retracting into the engaging and fixing portion 51. One end of the engaging member 53 is provided with a card slot 533 for engaging the cross-bracket mechanism 4. The design of the fifth mounting hole 531 enables the engaging member 53 to move only in one direction, which ensures the directional movement of the engaging member during use, avoids unnecessary lateral or longitudinal movement, and enhances the stability and reliability of the device. The elastic member mounted on the mounting post 532 can automatically reset the engaging member to its original position after the engaging member 53 retracts into the engaging and fixing portion 51. The elastic member is a spring. This design reduces the need for manual reset, making the entire operation process smoother and more efficient. The design of the card slot 533 enables the engaging member 53 to firmly engage the corresponding part of the cross-bracket mechanism 4, ensuring the stability of the entire structure in the unfolded state and preventing accidental loosening or slipping due to external forces.

[0048] Further, as a preferred implementation manner rather than a limitation of this solution, the pulling portion 54 includes a rope 541. One end of the rope 541 is connected to the sliding linkage portion 52, and the end far from the sliding linkage portion 52 is connected to a pull handle 542 for pulling the sliding linkage portion 52 to retract the engaging member 53 into the engaging and fixing portion 51 during folding. By pulling the pull handle 542, the operator can easily control the sliding linkage portion 52 to achieve the retraction or extension of the engaging member 53, simplifying the entire folding or unfolding process.

[0049] Further, as a preferred implementation manner rather than a limitation of this solution, one end of the first bracket 41 is hinged to the first fence frame 1, and the end far from the first fence frame 1 is sleeved on the second fence frame 2. One end of the second bracket 42 is hinged to the second fence frame 2, and the end far from the second fence frame 2 is sleeved on the first fence frame 1. It can be locked with the first fence frame 2 when unfolded and can slide on the first fence frame 1 when folded. Through the folding function, the device can reduce the occupied space when not in use, facilitating storage and transportation. It can be easily unfolded and folded without additional tools or complex steps, improving the convenience of use. In the unfolded state, the cross-bracket can provide structural stability through a locking mechanism to ensure that it will not accidentally fold during use. Due to the hinged design, the wear between components is relatively small, and it is easy to replace damaged parts, reducing the maintenance cost.

[0050] Further, as a preferred implementation manner rather than a limitation of the present solution, the first bracket 41 includes a first support rod 411, and a first sleeve 412 that is hinged to the first support rod 411 and can slide in the second fence frame 2. The second bracket 42 includes a second support rod 421, and a second sleeve 422 that is hinged to the second support rod 421 and can slide in the first fence frame 1. When the second sleeve 422 is unfolded, it is sleeved on the engaging and fixing portion 51. The second sleeve 422 includes a protruding groove 4221 that can push the engaging member 43 to retract into the engaging and fixing portion 51 when the first bracket 41 is unfolded and moved, and an engaging hole 4222 that can lock the engaging member 53 and the second sleeve 422 when unfolded. The design of the protruding groove 4221 and the engaging hole 4222 on the second sleeve 422 enables the engaging member 53 to automatically cooperate with the engaging and fixing portion 51 during the unfolding process to complete the locking action, simplifying the user's operation steps. The reasonable hinge and sliding design reduce the direct friction between components and extend the service life of the product.

[0051] Further, as a preferred implementation manner rather than a limitation of the present solution, the first fence frame 1 is connected to a basket base 6 for supporting the carrier. The basket base 6 includes a bottom plate 61 for keeping the trolley stable, a bottom support 62 connected to the lower part of the bottom plate 61 for supporting the bottom plate 61, a front socket 63 connected to the lower part of the bottom plate 61 for connecting and positioning with one side of the trolley, and a bottom plate seat 65 connected to the lower part of the bottom plate 61 for connecting and positioning with the other side of the trolley. One side of the trolley is inserted into the front socket 63, and the other side is snapped into the bottom plate seat 65, forming a stable double-fixed structure, effectively preventing shaking or falling during use. This helps to improve the connection strength between the trolley and the trolley basket and ensure the stability and safety when carrying items.

[0052] Further, as a preferred implementation manner rather than a limitation of the present solution, the second fence frame 2 is connected to a handle group 7 for lifting the basket. The handle group 7 includes a canopy tube 71 for shading when the sun is strong, a handle 72 that is hinged to the canopy tube 71 for lifting the trolley basket, a sheath 721 provided on the handle 72 for more firmly lifting the trolley basket, and a joint rotation mechanism 73 that is hinged between the canopy tube 71 and the handle 72 for enabling the canopy tube 71 and the handle 72 to rotate relative to each other. The joint rotation mechanism 73 is fixedly connected to the second fence frame 2. The tarpaulin or mesh surface supported by the second canopy tube can effectively block direct sunlight, reduce the temperature of the space below, and provide a comfortable shaded environment.

[0053] Further, as a preferred implementation manner rather than a limitation of this solution, a canopy locking mechanism 711 for locking and unlocking the canopy tube 71 and the second fence frame 2 is provided between the canopy tube 71 and the second fence frame 2. The canopy locking mechanism 711 includes a canopy buckle 7111 connected to the canopy tube and a canopy groove 7112 connected to the second fence frame 2. The canopy tube and the second fence frame can be firmly fixed on the basket through the canopy locking mechanism, ensuring that the canopy tube is not easily loosened or detached during use.

[0054] The working principle of this embodiment is as follows:

[0055] A quickly retractable and expandable basket, as Figure 1 shown. First, when it needs to be expanded in the folded state, lift the upper handle. The handle drives the second fence frame to move upward, the cross-bracket mechanism unfolds, the second sleeve moves towards the engaging and fixing part, and the protruding groove on the second sleeve pushes the engaging piece to retract into the engaging and fixing part so that the second sleeve continues to slide. When the sliding reaches the position where the engaging piece coincides with the engaging hole, the engaging piece extends out of the engaging and fixing part to lock the second sleeve, realizing the locking and expansion of the basket. When it needs to be folded in the expanded state, pull the two pull handles towards each other. The pull handles drive the ropes, and the ropes pull the sliding linkage part. When the sliding linkage part moves, through the sliding connecting piece and the inclined mounting hole, when the sliding linkage part moves in the engaging and fixing part, the engaging piece retracts into the engaging and fixing part, and the engaging piece is unlocked from the second sleeve. The second fence frame moves downward under the action of gravity or manual pressure, and the cross-bracket mechanism starts to fold until the folding is completed. Repeat the above operations when expanding.

[0056] The above are the implementation manners provided in combination with specific contents, and it is not determined that the specific implementation of this application is only limited to these descriptions. Any structure similar to the method of this application, or several technical deductions or replacements made under the premise of the concept of this application, should be regarded as the protection scope of this application.

Claims

1. A quick - retracting and quick - deploying carry - basket, characterized in that, It includes a first fence frame (1) for preventing an object from slipping out. Above the first fence frame (1), there is a second fence frame (2) for preventing the object from slipping out. A bracket folding mechanism (3) for quickly folding and unfolding the first fence frame (1) and the second fence frame (2) is connected between the first fence frame (1) and the second fence frame (2). The bracket folding mechanism (3) includes a cross-bracket mechanism (4) that can slide on the first fence frame (1) and the second fence frame (2) and support the first fence frame (1) and the second fence frame (2) when unfolded. In the middle of the cross-bracket mechanism (4), a first bracket (41) and a second bracket (42) are hinged. Two ends of the first bracket (41) are respectively movably connected to the first fence frame (1) and the second fence frame (2). Two ends of the second bracket (42) are respectively movably connected to the first fence frame (1) and the second fence frame (2). At least one end of the first bracket (41) and the second bracket (42) can slide on the first fence frame (1) and the second fence frame (2). A clamping and locking mechanism (5) for locking the first fence frame (1) and the second fence frame (2) when unfolded and unlocking them when folded is provided between the cross-bracket mechanism (4) and the first fence frame (1) and the second fence frame (2).

2. The quick - retracting and quick - deploying basket according to claim 1, characterized in that : One end of at least one bracket of the cross-bracket mechanism (4) is hinged to one of the first fence frame (1) and the second fence frame (2), and the other end away from the hinge is sleeved on the other one of the first fence frame (1) and the second fence frame (2), and at least one of the ends for sleeving is connected to the clamping and locking mechanism (5).

3. A quickly retractable and expandable basket according to claim 2, characterized in that : The clamping and locking mechanism (5) includes a clamping and fixing part (51) that sleeves both sides of the first fence frame (1) and is fixed to the first fence frame (1). On the clamping and fixing part (51), there is a sliding linkage part (52) that can move along the axial length extension line of the clamping and fixing part (51) within the clamping and fixing part (51). On the sliding linkage part (52), there is a clamping part (53) that protrudes from the clamping and fixing part (51) to clamp the cross-bracket mechanism (4) and the first fence frame (1) when the first fence frame (1) and the second fence frame (2) are unfolded and retracts into the clamping and fixing part (51) to unlock the cross-bracket mechanism (4) and the first fence frame (1) when the first fence frame (1) and the second fence frame (2) are folded. The sliding linkage part (52) is connected to a pulling part (54) that can drive the sliding linkage part (52) to move.

4. The quick - retracting and quick - expanding basket according to claim 3, characterized in that : The clamping and fixing part (51) includes a first mounting hole (511) connecting both sides of the first fence frame (1) and a telescopic opening (512) that enables the clamping part (53) to protrude or retract into the clamping and fixing part (51). On the side, there is a second mounting hole (513) that can install a sliding connecting piece to link and limit the moving distance of the clamping part (53) and the sliding linkage part (52) when the clamping part (53) and the sliding linkage part (52) move.

5. A quickly retractable and expandable basket according to claim 3, characterized in that : The sliding linkage part (52) includes a linkage groove (521) for accommodating the engaging part (53). The linkage groove (521) is communicated with an inclined mounting hole (522) which enables the engaging part (53) to move in only one direction when the engaging part (53) extends out of or retracts into the linkage groove (521) while the sliding linkage part (52) moves along the axial length extension line of the engaging and fixing part (51). The sliding linkage part (52) is provided with a third mounting hole (523) which can enable a fastener to connect the first fence frame (1), the engaging and fixing part (51) and the sliding linkage part (52) so that the sliding linkage part (52) moves a certain distance. One end of the sliding linkage part (52) is provided with a fourth mounting hole (525) for connecting the pulling part (54).

6. A quickly retractable and expandable carry basket according to claim 3, wherein : The engaging part (53) includes a fifth mounting hole (531) for connecting the engaging part (53), the sliding linkage part (52) and the engaging and fixing part (51) to form a connected whole and restricting the movement of the engaging part (53) in a single direction, and a mounting post (532) for mounting an elastic member (81) to reset the engaging part (53) after it retracts into the engaging and fixing part (51). One end of the engaging part (53) is provided with a card slot (533) for engaging the cross-bracket mechanism (4).

7. A quickly retractable and expandable carrycot according to claim 3, wherein : The pulling part (54) includes a rope (541). One end of the rope (541) is connected to the sliding linkage part (52), and the end far from the sliding linkage part (52) is connected to a pull handle (542) for pulling the sliding linkage part (52) to make the engaging part (53) retract into the engaging and fixing part (51) during folding.

8. A quickly retractable and expandable basket according to claim 3, characterized in that : One end of the first bracket (41) is hinged to the first fence frame (1), and the end far from the first fence frame (1) is sleeved on the second fence frame (2). One end of the second bracket (42) is hinged to the second fence frame (2), and the end far from the second fence frame (2) is sleeved on the first fence frame (1).

9. The quick - retracting and quick - deploying basket according to claim 8, wherein : The first bracket (41) includes a first support rod (411). The first support rod (411) is hinged with a first sleeve (412) which can slide on the second fence frame (2). The second bracket (42) includes a second support rod (421). The second support rod (421) is hinged with a second sleeve (422) which can slide on the first fence frame (1). When the second sleeve (422) is unfolded, it is sleeved on the engaging and fixing part (51). The second sleeve (422) includes a protruding groove (4221) which can push the engaging part (53) to retract into the engaging and fixing part (51) when the first bracket (41) is unfolded and moved, and a locking hole (4222) which can lock the engaging part (53) and the second sleeve (422) when unfolded.

10. A quick - retracting and quick - deploying basket according to claim 1, characterized in that : The described first fence frame (1) is connected to a basket base (6) for supporting a carrier. The basket base (6) includes a bottom plate (61) for keeping the trolley stable. The lower part of the bottom plate (61) is connected to a bottom support (62) for supporting the bottom plate (61). The lower part of the bottom plate (61) is connected to a front socket (63) for connecting and positioning with one side of the trolley. The lower part of the bottom plate (61) is connected to a bottom plate seat (65) for connecting and positioning with the other side of the trolley.

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