Cart locking structure and cart

Abstract

The utility model discloses a cart locking structure and a cart. The cart locking structure comprises a rotating joint, a push handle, a supporting leg, a first locking assembly and a second locking assembly. The push handle is provided with an operating handle, and the operating handle can move relative to the push handle; the locking assembly can relatively fix or unfix the rotating joint and the outer side of the supporting leg; and the locking assembly can relatively fix the rotating joint and the inner side of the supporting leg or unfix the rotating joint and the inner side of the supporting leg. The inner sides and the outer sides of the supporting legs are synchronously locked through the first locking assemblies and the second locking assemblies, the situation that the supporting legs are loosened or unfolded accidentally due to factors such as shaking of a baby and uneven ground in the running process of the stroller can be effectively prevented, and therefore it is guaranteed that the stroller can be stably unfolded in various scenes; and therefore, the infant is prevented from being injured due to the toppling of the stroller, and the safety of the stroller is remarkably improved.

Description

Technical Field

[0001] This utility model relates to the field of infants and toddlers, and in particular to a stroller locking structure and a stroller. Background Technology

[0002] As is well known, foldable strollers typically need to be fixed in their unfolded state during operation to ensure the overall safety and reliability of the stroller. However, traditional strollers usually lock only one side of the legs, securing only the inner or outer side. This design means that if the stroller is subjected to external force during use, such as running on uneven ground or experiencing a minor collision, the legs may loosen or even accidentally unfold or fold up. Therefore, this type of stroller suffers from poor stability. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes a trolley locking structure with better stability.

[0004] This utility model also proposes a trolley with the above-mentioned trolley locking structure.

[0005] According to a first aspect of the present invention, a trolley locking structure includes: a rotating joint, a push handle, a support leg, a first locking component, and a second locking component; the push handle is mounted on the rotating joint, and the push handle is provided with an operating handle, which is movable relative to the push handle; the support leg is rotatably mounted on the rotating joint; the operating handle is connected to the support leg through the first locking component, and the locking component is capable of relatively fixing or releasing the outer sides of the rotating joint and the support leg; the operating handle is connected to the support leg through the second locking component, and the locking component is capable of relatively fixing or releasing the inner sides of the rotating joint and the support leg.

[0006] The trolley locking structure according to this utility model embodiment has at least the following beneficial effects: after the operating handle moves relative to the push handle, it can simultaneously trigger the first locking component and the second locking component. Therefore, when it is necessary to unlock the outrigger, the operating handle can be driven, thereby operating the first locking component and the second locking component, and thus achieving the effect of unlocking both the inner and outer sides of the outrigger simultaneously.

[0007] By simultaneously locking the inner and outer sides of the outriggers with the first and second locking components, the outriggers can be effectively prevented from loosening or unfolding accidentally due to factors such as the baby shaking or uneven ground during the stroller's operation. This ensures that the stroller remains stably unfolded in various scenarios, thereby preventing injuries to infants and toddlers caused by the stroller tipping over. As a result, the safety of the stroller is significantly improved, and damage caused by frequent loosening is avoided.

[0008] According to some embodiments of the present invention, the push handle is rotatably mounted on the rotating joint, and at least one of the first locking component and the second locking component is capable of relatively fixing or releasing the push handle and the rotating joint.

[0009] According to some embodiments of this utility model, the rotating joint is equipped with a rear leg frame, and the push handle and the support leg can rotate synchronously toward the rear leg frame or synchronously move away from the rear leg frame.

[0010] According to some embodiments of the present invention, the push handle is equipped with a first connecting block, the support leg is equipped with a second connecting block, a connecting rod is provided between the first connecting block and the second connecting block and connected thereto, and when the push handle rotates, the support leg is driven to rotate through the connecting rod.

[0011] According to some embodiments of the present invention, the first locking assembly includes a locking pin and a locking groove, wherein the locking pin is movably installed in the locking groove; one of the locking pin and the locking groove is connected to the support leg, and the other of the locking pin and the locking groove is installed in the rotating joint; when the operating handle moves relative to the push handle, it can push the locking pin and cause it to leave the locking groove.

[0012] According to some embodiments of the present invention, the outrigger is movably mounted with a first transmission block, and the locking pin is disposed on the first transmission block; the operating handle is connected to a second transmission block, and when the operating handle moves relative to the push handle, it can push the first transmission block through the second transmission block; the locking pin and the locking groove are relatively fixed if and only if the locking pin is located in the locking groove and the locking pin is not pushed.

[0013] According to some embodiments of the present invention, at least one of the first transmission block and the second transmission block is connected to a return spring.

[0014] According to some embodiments of the present invention, the second locking component includes a locking plate and a locking part, one of the locking plate and the locking part is disposed on the first transmission block, and the other of the locking plate and the locking part is disposed on the second transmission block, wherein the locking plate can be engaged with the locking part.

[0015] According to some embodiments of the present invention, the first transmission block is movably inserted into the support leg, at least a portion of the operating handle is movably inserted into the push handle, and the second transmission block is installed at the end of the operating handle located within the push handle.

[0016] The trolley according to a second aspect of the present invention includes a trolley locking structure according to the first aspect of the present invention described above.

[0017] The trolley according to the embodiments of this utility model has at least the following beneficial effects: after the operating handle moves relative to the push handle, it can simultaneously trigger the first locking component and the second locking component. Therefore, when it is necessary to unlock the outrigger, the operating handle can be driven, thereby operating the first locking component and the second locking component, and thus achieving the effect of unlocking both the inner and outer sides of the outrigger simultaneously.

[0018] By simultaneously locking the inner and outer sides of the outriggers with the first and second locking components, the outriggers can be effectively prevented from loosening or unfolding accidentally due to factors such as the baby shaking or uneven ground during the stroller's operation. This ensures that the stroller remains stably unfolded in various scenarios, thereby preventing injuries to infants and toddlers caused by the stroller tipping over. As a result, the safety of the stroller is significantly improved, and damage caused by frequent loosening is avoided.

[0019] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0020] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0021] Figure 1 This is a schematic diagram of the trolley locking structure according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 The diagram shows the folded state of the trolley locking structure.

[0023] Figure 3 for Figure 1 The diagram shows the folded state of the trolley locking structure.

[0024] Figure 4 for Figure 1 An internal schematic diagram of the cross-section of the trolley locking structure is shown;

[0025] Figure 5 for Figure 1 A schematic diagram showing the disassembled state of the trolley locking structure;

[0026] Figure 6 for Figure 1 A schematic diagram of the first locking component of the trolley locking structure is shown;

[0027] Figure 7for Figure 1 A schematic diagram of the second locking component of the trolley locking structure is shown;

[0028] Reference numerals: Rotating joint 100; First connecting hole 170; Second connecting hole 190; Push handle 200; First connecting block 270; Second transmission block 250; Connecting rod 280; First connecting pin 290; Support leg 300; Second connecting block 370; First transmission block 350; Mounting groove 375; Second connecting pin 390; Return spring 400; Rear leg bracket 500; First locking assembly 600; Locking pin 610; Locking groove 620; Operating handle 700; Second locking assembly 800; Locking plate 810; Locking part 820; Seat connecting part 900; Detailed Implementation

[0029] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0030] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, 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.

[0031] In the description of this utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If "first" or "second" is used in the description, it is only for the purpose of distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly indicating the number of indicated technical features, or implicitly indicating the order of the indicated technical features.

[0032] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0033] Reference Figure 1According to a first aspect of the present invention, a trolley locking structure includes: a rotating joint 100, a push handle 200, a support leg 300, a first locking assembly 600, and a second locking assembly 800. The push handle 200 is mounted on the rotating joint 100 and has an operating handle 700, which is movable relative to the push handle 200. The support leg 300 is rotatably mounted on the rotating joint 100. The operating handle 700 is connected to the support leg 300 via the first locking assembly 600, which can relatively fix or release the outer sides of the rotating joint 100 and the support leg 300. The operating handle 700 is connected to the support leg 300 via the second locking assembly 800, which can relatively fix or release the inner sides of the rotating joint 100 and the support leg 300. After the operating handle 700 moves relative to the push handle 200, it can simultaneously trigger the first locking assembly 600 and the second locking assembly 800. Therefore, when it is necessary to unlock the support leg 300, the operating handle 700 can be driven, thereby activating the first locking component 600 and the second locking component 800, thus achieving the effect of unlocking both the inner and outer sides of the support leg 300 simultaneously. By simultaneously locking the inner and outer sides of the support leg 300 with the first locking component 600 and the second locking component 800, it is possible to effectively prevent the support leg 300 from accidentally loosening or unfolding during the stroller's operation due to factors such as the baby shaking or uneven ground. This ensures that the stroller remains stably unfolded in various scenarios, thereby preventing injury to infants and toddlers due to the stroller tipping over. Therefore, the safety of the stroller is significantly improved, and damage caused by frequent loosening of the stroller is avoided.

[0034] In some embodiments, reference is made to Figure 2 The push handle 200 is rotatably mounted on the rotating joint 100. At least one of the first locking component 600 and the second locking component 800 can relatively fix or release the fixation between the push handle 200 and the rotating joint 100. The rotatable connection of the push handle 200 allows the push handle 200 and the support leg 300 to rotate relative to each other or relative to each other, thus enabling the entire trolley, including both, to be folded, thereby effectively reducing the volume of the folded trolley and thus effectively improving the portability of the trolley.

[0035] Specifically, both the first locking component 600 and the second locking component 800 can lock the push handle 200, thereby improving the stability of the locking effect. When the operating handle 700 performs an unlocking action, it will simultaneously unlock the first locking component 600 and the second locking component 800, thus effectively avoiding the problem of cumbersome and complicated unlocking actions.

[0036] Furthermore, the push handle 200 is equipped with a first connecting pin 290, and the support leg 300 is equipped with a second connecting pin 390; the rotating joint 100 is provided with a first connecting hole 170 and a second connecting hole 190; the first connecting pin 290 is rotatably installed in the first connecting hole 170, and the second connecting pin 390 is rotatably installed in the second connecting hole 190.

[0037] In some embodiments, reference is made to Figure 3 The rotating joint 100 is equipped with a rear leg frame 500. The push handle 200 and the support leg 300 can rotate synchronously towards or away from the rear leg frame 500. The rear leg frame 500, in conjunction with the support leg 300, provides multi-position support for the trolley, allowing it to run smoothly and stably. The synchronous rotation of the push handle 200 and the support leg 300 allows the trolley to fold or unfold with the rear leg frame 500 as the center, making the trolley's concealing or unfolding actions more orderly.

[0038] Furthermore, the trolley also includes a seat connection 900, which is connected to the push handle 200 and can rotate synchronously with it. It is conceivable that the seat connection 900 can also be connected to the rotating joint 100, the support leg 300, or the rear leg support 500, or the seat connection 900 can be installed independently. The specific implementation is not unique and can be adjusted according to the actual situation; no limitation is made here.

[0039] In some embodiments, reference is made to Figure 6 The push handle 200 is equipped with a first connecting block 270, and the support leg 300 is equipped with a second connecting block 370. A connecting rod 280 is provided between the first connecting block 270 and the second connecting block 370 and connects them. When the push handle 200 rotates, it drives the support leg 300 to rotate through the connecting rod 280. The first connecting block 270 and the second connecting block 370 are interconnected through the connecting rod 280. Therefore, when the push handle 200 drives the first connecting block 270 to rotate, the first connecting block 270 will drive the second connecting block 370 to move through the connecting rod 280, thereby achieving the effect that the rotation of the push handle 200 drives the support leg 300 to rotate synchronously, which can effectively improve the convenience of folding or unfolding the trolley.

[0040] Specifically, the second connecting block 370 is provided with a mounting groove 375, which has an inner arc surface. The connecting rod 280 is generally arc-shaped, with one end hinged to the first connecting block 270 and the other end hinged to the mounting groove 375. When the connecting rod 280 rotates, its side can fit against the inner arc surface of the mounting groove 375. This prevents jamming between the connecting rod 280 and the mounting groove 375 when the connecting rod 280 is driven and rotated by the first connecting block 270, thus ensuring smooth relative movement between the first connecting block 270 and the second connecting block 370.

[0041] In some embodiments, reference is made to Figure 6 The first locking assembly 600 includes a locking pin 610 and a locking groove 620, with the locking pin 610 movably installed within the locking groove 620. One of the locking pin 610 and the locking groove 620 is connected to the support leg 300, and the other is installed in the rotary joint 100. When the operating handle 700 moves relative to the push handle 200, it can push the locking pin 610 and disengage it from the locking groove 620. The locking pin 610 and the locking groove 620 are relatively fixed if and only if the locking pin 610 is located within the locking groove 620 and is not pushed. When the locking pin 610 is installed within the locking groove 620 and is not pushed, the locking pin 610 and the locking groove 620 will be in a relatively locked state, so that the support leg 300 and the rotary joint 100 cannot move relative to each other, thereby smoothly maintaining the trolley in an unfolded or folded state. The user can push the locking pin 610 with the operating handle 700, thereby causing the locking pin 610 to leave the locking groove 620, thus directly and effectively separating the two, and allowing the support leg 300 to move relative to the rotating joint 100, thereby realizing the folding or unfolding action.

[0042] Specifically, the locking pin 610 is movably mounted on the outrigger 300, and there are two locking slots 620, which are respectively located on both sides of the rotating joint 100. The locking pin 610 extends to both sides of the rotating joint 100 and is installed in the two locking slots 620.

[0043] In some embodiments, reference is made to Figure 5 The outrigger 300 is movably mounted with a first transmission block 350, and a locking pin 610 is disposed on the first transmission block 350. The operating handle 700 is connected to a second transmission block 250. When the operating handle 700 moves relative to the push handle 200, it can push the first transmission block 350 through the second transmission block 250. The cooperation between the first transmission block 350 and the second transmission block 250 can effectively transmit the movement of the operating handle 700 to the locking pin 610 mounted on the outrigger 300, thereby ensuring that the movement of the operating handle 700 can drive the locking pin 610 to move, thus achieving the unlocking effect smoothly.

[0044] In some embodiments, reference is made to Figure 5 At least one of the first transmission block 350 and the second transmission block 250 is connected to a return spring 400. The return spring 400 can promptly drive the first transmission block 350 and the second transmission block 250 to reset. Therefore, after the locking pin 610 extends into the locking groove 620, the two can quickly move into position under the action of the return spring 400 and remain in the locked state, thereby ensuring that the trolley can be stably maintained in the unfolded or folded state.

[0045] Specifically, a locking groove 620 is formed in the rotating joint 100, and the interior of the locking groove 620 extends laterally relative to its opening. When the locking pin 610 is located within the locking groove 620, the return spring 400 pushes it to the extended position of the locking groove 620, away from the opening of the locking groove 620, thereby achieving a relative locking effect between the locking groove 620 and the locking pin 610. After being pushed, the locking pin 610 will be pushed to the opening of the locking groove 620, allowing the locking pin 610 to disengage from the locking groove 620, thus enabling smooth unlocking.

[0046] In some embodiments, reference is made to Figure 7 The second locking assembly 800 includes a locking plate 810 and a locking part 820. One of the locking plate 810 and the locking part 820 is disposed on the first transmission block 350, and the other of the locking plate 810 and the locking part 820 is disposed on the second transmission block 250. The locking plate 810 can engage with the locking part 820. When the trolley is in an unfolded or folded state, the locking plate 810 will engage with the locking part 820, thereby making the first transmission block 350 and the second transmission block 250 in a relatively engaged state, thus preventing the support leg 300 from moving relative to the rotating joint 100, and thus achieving a smooth and effective locking effect.

[0047] Specifically, there are two locking plates 810, both located at the ends of the second transmission block 250, with a gap between them; the locking part 820 is located in the middle of the end of the first transmission block 350. The two locking plates 810 can engage the locking part 820 in the gap between them, thereby achieving the effect of locking and fixing the locking part 820.

[0048] Furthermore, the locking plate 810 abuts against the locking pin 610, and the locking plate 810 and the locking part 820 are kept locked by the return spring 400.

[0049] In some embodiments, reference is made to Figure 4The first transmission block 350 is movably inserted into the support leg 300, at least a portion of the operating handle 700 is movably inserted into the push handle 200, and the second transmission block 250 is installed at the end of the operating handle 700 located within the push handle 200. The first transmission block 350 and the second transmission block 250, inserted into the support leg 300 and the push handle 200, not only receive protection from these elements but also ensure that their movement is less susceptible to interference from external factors. This allows for a more stable engagement between the locking boss and the locking groove, thereby improving the stability of the trolley.

[0050] Specifically, the locking boss and locking groove lock the support leg 300 and the rotating joint 100 from inside the support leg 300; the locking pin 610 extends outward relative to the support leg 300 and locks the support leg 300 and the rotating joint 100 from outside the support leg 300. Therefore, the support leg 300 of the trolley can achieve a locking effect on both the inner and outer sides, thereby effectively improving the stability of the trolley.

[0051] The second aspect of this utility model provides an embodiment of a stroller, including the stroller locking structure described above. When the operating handle 700 moves relative to the push handle 200, it can simultaneously trigger the first locking component 600 and the second locking component 800. Therefore, when it is necessary to unlock the support leg 300, the operating handle 700 can be driven, thereby operating the first locking component 600 and the second locking component 800, thus achieving the effect of unlocking both the inner and outer sides of the support leg 300 simultaneously. By simultaneously locking the inner and outer sides of the support leg 300 with the first locking component 600 and the second locking component 800, the support leg 300 can be effectively prevented from accidentally loosening or unfolding during the stroller's operation due to factors such as the baby shaking or uneven ground. This ensures that the stroller remains stably unfolded in various scenarios, thus preventing injury to infants caused by the stroller tipping over. Therefore, the safety of the stroller is significantly improved, and damage caused by frequent loosening is avoided.

[0052] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0053] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present utility model.

Claims

1. A trolley locking structure, characterized in that, include: Rotate the joint (100); A push handle (200) is mounted on the rotating joint (100), and the push handle (200) is provided with an operating handle (700), which is movable relative to the push handle (200); The outrigger (300) is rotatably mounted on the rotating joint (100); A first locking assembly (600) is provided, wherein the operating handle (700) is connected to the support leg (300) via the first locking assembly (600), and the first locking assembly (600) is capable of relatively fixing or releasing the outer side of the rotating joint (100) and the support leg (300). The second locking assembly (800) is connected to the outrigger (300) via the operating handle (700). The second locking assembly (800) can relatively fix or release the inner side of the rotating joint (100) and the outrigger (300).

2. The trolley locking structure as described in claim 1, characterized in that: The push handle (200) is rotatably mounted on the rotating joint (100), and at least one of the first locking component (600) and the second locking component (800) is capable of fixing or releasing the push handle (200) and the rotating joint (100) relative to each other.

3. The trolley locking structure as described in claim 2, characterized in that: The rotating joint (100) is equipped with a rear leg bracket (500), and the push handle (200) and the support leg (300) can rotate synchronously toward the rear leg bracket (500) or synchronously move away from the rear leg bracket (500).

4. The trolley locking structure as described in claim 3, characterized in that: The push handle (200) is equipped with a first connecting block (270), and the support leg (300) is equipped with a second connecting block (370). A connecting rod (280) is provided between the first connecting block (270) and the second connecting block (370) and connected thereto. When the push handle (200) rotates, it drives the support leg (300) to rotate through the connecting rod (280).

5. The trolley locking structure as described in claim 1, characterized in that: The first locking assembly (600) includes a locking pin (610) and a locking groove (620), wherein the locking pin (610) is movably installed in the locking groove (620); one of the locking pin (610) and the locking groove (620) is connected to the support leg (300), and the other of the locking pin (610) and the locking groove (620) is installed in the rotating joint (100); When the operating handle (700) moves relative to the push handle (200), it can push the locking pin (610) and cause it to leave the locking groove (620); the locking pin (610) and the locking groove (620) are relatively fixed if and only if the locking pin (610) is located in the locking groove (620) and the locking pin (610) is not pushed.

6. The trolley locking structure as described in claim 5, characterized in that: The outrigger (300) is movably mounted with a first transmission block (350), and the locking pin (610) is disposed on the first transmission block (350); the operating handle (700) is connected to a second transmission block (250), and when the operating handle (700) moves relative to the push handle (200), it can push the first transmission block (350) through the second transmission block (250).

7. The trolley locking structure as described in claim 6, characterized in that: At least one of the first transmission block (350) and the second transmission block (250) is connected to a return spring (400).

8. The trolley locking structure as described in claim 6, characterized in that: The second locking assembly (800) includes a locking plate (810) and a locking part (820). One of the locking plate (810) and the locking part (820) is disposed on the first transmission block (350), and the other of the locking plate (810) and the locking part (820) is disposed on the second transmission block (250). The locking plate (810) can engage with the locking part (820).

9. The trolley locking structure as described in claim 8, characterized in that: The first transmission block (350) is movably inserted into the support leg (300), at least a portion of the operating handle (700) is movably inserted into the push handle (200), and the second transmission block (250) is installed at the end of the operating handle (700) located within the push handle (200).

10. A trolley, characterized in that, Includes the trolley locking structure as described in any one of claims 1 to 9.

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