Cart orientation mechanism and cart

Abstract

The utility model discloses a cart orientation mechanism and a cart, the cart orientation mechanism comprises a frame, a wheel seat, a locking structure and a transmission structure, the frame is movably provided with an operating piece; the wheel seat is rotatably connected to the frame; the locking structure is arranged between the wheel seats, and the locking structure is used for relatively fixing the frame and the wheel seats or releasing the fixing effect between the frame and the wheel seats; the operating piece can push the locking structure through the transmission structure and change the locking state of the locking structure. And when and only when the wheel seat is disassembled or assembled from the frame, the transmission structure and the locking structure are separated from each other or are in contact with each other. Due to the fact that the transmission structure is located on the frame, the locking structure is located on the wheel seat, and the transmission structure drives the locking structure to move in a pushing mode, the transmission structure and the locking structure can be simply / conveniently separated relatively, and convenience is provided for relative disassembly and assembly between the frame and the wheel seat.

Description

Technical Field

[0001] This utility model relates to the field of trolleys, and in particular to a trolley orientation mechanism and a trolley. Background Technology

[0002] To enable the stroller to move smoothly in a straight line, existing strollers typically have a directional mechanism. The directional mechanism in existing strollers generally achieves locking or unlocking by driving a locking component through a built-in pull rope. However, the pull rope needs to be threaded inside the wheel seat, which makes disassembly difficult, the structure complex, and the pull rope is prone to wear, posing a safety hazard. Utility Model Content

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a trolley orientation mechanism that can be easily assembled and disassembled.

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

[0005] According to a first aspect of the present invention, a trolley orientation mechanism includes: a frame, wheel seats, a locking structure, and a transmission structure. An operating element is movably disposed on the frame. The wheel seats are rotatably connected to the frame. The locking structure is disposed between the wheel seats and is used to relatively fix or release the fixation between the frame and the wheel seats. The transmission structure is disposed on the frame, and the operating element can push the locking structure through the transmission structure and change its locking state. The transmission structure and the locking structure are separated or contacted only when the wheel seats are disassembled or assembled from the frame.

[0006] The trolley steering mechanism according to the embodiments of this utility model has at least the following beneficial effects: when the operating component moves, it can drive the locking structure to operate through the transmission structure, thereby achieving the locking or unlocking effect of steering the wheel seat. Since the transmission structure is located on the frame and the locking structure is located on the wheel seat, and the transmission structure drives the locking structure to move by pushing, the transmission structure and the locking structure can be easily and conveniently separated, thus facilitating the relative assembly and disassembly of the frame and the wheel seat.

[0007] When the wheel seat and frame are disassembled, the locking structure will be removed along with the wheel seat, without the need for additional disassembly work between the locking structure and the transmission structure. This effectively simplifies the disassembly process of the locking structure, thereby facilitating the maintenance and replacement of components.

[0008] According to some embodiments of the present invention, the locking structure includes a rotating seat disposed on the frame, the rotating seat being rotatably connected to a wheel seat, and a locking pin being movably disposed on the rotating seat; the wheel seat is provided with a locking hole, and the locking pin can be moved into or out of the locking hole.

[0009] According to some embodiments of the present invention, the transmission structure includes a push block movably disposed within the frame, the push block being able to move closer to or away from the locking pin, the push block being able to push the locking pin and cause it to move into the locking hole; the rotating seat is provided with a first spring, the first spring abutting against the locking pin and being able to drive it to move away from the locking hole.

[0010] According to some embodiments of the present invention, a pull rope is provided inside the frame, and the operating component is connected to the push block through the pull rope; the frame is provided with a second spring, one of the pull rope and the second spring is used to drive the push block to move closer to the locking pin, and the other of the pull rope and the second spring is used to drive the push block to move away from the locking pin.

[0011] According to some embodiments of the present invention, the transmission structure includes a gear rotatably mounted on the frame, the gear being connected to the pull rope; the operating member is connected to a connecting member, the connecting member meshing with the gear, and the operating member can drive the gear to rotate through the connecting member.

[0012] According to some embodiments of this utility model, the wheel seat, the locking structure, and the pull rope are all in pairs and connected in a one-to-one correspondence. The frame is provided with a first transmission block and a second transmission block, and the two pull ropes are respectively connected to the first transmission block and the second transmission block. When the gear rotates, it can drive the first transmission block and the second transmission block to move respectively.

[0013] According to some embodiments of the present invention, the gear is provided with push teeth, and when the gear rotates, it can push one of the first transmission block and the second transmission block through the push teeth.

[0014] 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 third spring, the third spring being used to drive the first transmission block and / or the second transmission block to move closer to the gear.

[0015] According to some embodiments of the present invention, the wheel seat is provided with a rotating shaft, and the rotating seat is movably sleeved on the outer periphery of the rotating shaft; the rotating seat is provided with a mounting hole, and the locking pin is movably disposed in the mounting hole, the mounting hole being offset from the rotating shaft and capable of rotating to align with the locking hole.

[0016] The trolley according to a second aspect of the present invention includes a trolley orientation mechanism 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: when the operating component moves, it can drive the locking structure to operate through the transmission structure, thereby achieving the locking or unlocking effect of steering the wheel seat. Since the transmission structure is located on the frame and the locking structure is located on the wheel seat, and the transmission structure drives the locking structure to move by pushing, the transmission structure and the locking structure can be easily and conveniently separated, thus providing convenience for the relative assembly and disassembly of the frame and the wheel seat.

[0018] When the wheel seat and frame are disassembled, the locking structure will be removed along with the wheel seat, without the need for additional disassembly work between the locking structure and the transmission structure. This effectively simplifies the disassembly process of the locking structure, thereby facilitating the maintenance and replacement of components.

[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 orientation mechanism according to an embodiment of the present utility model;

[0022] Figure 2 for Figure 1 A schematic diagram showing the disassembled orientation mechanism of the trolley;

[0023] Figure 3 for Figure 1 A schematic diagram of the rotating base of the trolley orientation mechanism is shown;

[0024] Figure 4 for Figure 1 A schematic diagram showing the connection method of the trolley orientation mechanism;

[0025] Figure 5 for Figure 4 An enlarged schematic diagram of point A is shown;

[0026] Figure 6 for Figure 4 A schematic diagram showing another orientation at the trolley orientation mechanism;

[0027] Figure 7 for Figure 4 An enlarged schematic diagram of point B is shown;

[0028] Reference numerals: Frame 100; Operating component 200; First transmission block 310; Pushing ramp 315; Second transmission block 320; Gear 330; Pushing tooth 335; Connecting component 350; Transmission structure 500; Third spring 510; Pull rope 530; Second spring 550; Pushing block 570; Locking structure 700; Rotary seat 710; Mounting hole 715; Locking pin 720; First spring 730; Caster 900; Shaft 920; Wheel seat 930; Locking hole 935; 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 1A trolley steering mechanism includes: a frame 100, wheel seats 930, a locking structure 700, and a transmission structure 500. An operating member 200 is movably disposed on the frame 100. The wheel seats 930 are rotatably connected to the frame 100. The locking structure 700 is disposed between the wheel seats 930 and is used to fix or release the relative fixation between the frame 100 and the wheel seats 930. The transmission structure 500 is disposed on the frame 100, and the operating member 200 can push the locking structure 700 through the transmission structure 500 to change its locking state. The transmission structure 500 and the locking structure 700 are separated or in contact only when the wheel seats 930 are detached from or assembled from the frame 100. When the operating member 200 moves, it can drive the locking structure 700 to operate through the transmission structure 500, thereby achieving the locking or unlocking effect of steering the wheel seats 930. Since the transmission structure 500 is located on the frame 100, and the locking structure 700 is located on the wheel seat 930, and the transmission structure 500 drives the locking structure 700 to move by pushing, the transmission structure 500 and the locking structure 700 can be easily and conveniently separated, thus facilitating the relative assembly and disassembly of the frame 100 and the wheel seat 930. When the wheel seat 930 and the frame 100 are disassembled relative to each other, the locking structure 700 will be removed along with the wheel seat 930, without the need for additional disassembly work between the locking structure 700 and the transmission structure 500. Therefore, the disassembly process of the locking structure 700 can be effectively simplified, thereby facilitating the maintenance and replacement of components.

[0034] Specifically, casters 900 are rotatably mounted on the wheel seat 930, so that the frame 100 can receive support and bearing effect from the casters 900, and achieve the purpose of running by the rolling of the casters 900.

[0035] In some embodiments, reference is made to Figure 3 The locking structure 700 includes a rotating seat 710 disposed on the frame 100, which is rotatably connected to the wheel seat 930. A locking pin 720 is movably disposed on the rotating seat 710. The wheel seat 930 is provided with a locking hole 935, and the locking pin 720 can move into or out of the locking hole 935. The wheel seat 930 is connected to the frame 100 through the rotating seat 710. When the wheel seat 930 rotates relative to the rotating seat 710, it achieves the effect of rotating relative to the frame 100, thereby allowing the trolley to turn. When it is necessary to orient the trolley, the locking pin 720 can be driven by the transmission structure 500 to extend into the locking hole 935, thereby making the two interlock and directly and effectively fixing the rotating seat 710 and the wheel seat 930 relative to each other.

[0036] It is conceivable that the swivel seat 710 and the frame 100 could be rotatably connected, as long as at least one of the frame 100 and the swivel seat 710, or the swivel seat 710 and the wheel seat 930, can rotate relative to each other. The specific implementation method is not unique, but can be adjusted according to actual needs, and is not limited here.

[0037] In some embodiments, reference is made to Figure 2 The transmission structure 500 includes a push block 570 movably disposed within the frame 100. The push block 570 can move closer to or away from the locking pin 720. The push block 570 can push the locking pin 720, causing it to extend into the locking hole 935. The rotating seat 710 is provided with a first spring 730. The first spring 730 abuts against the locking pin 720 and can drive it to move away from the locking hole 935. After the push block 570 pushes the locking pin 720, it can drive the locking pin 720 to move relative to the rotating seat 710, thereby achieving the effect of driving the locking pin 720 into or out of the locking hole 935. In conjunction with the first spring 730, it achieves the purpose of driving the locking pin 720 into and out of the locking hole 935, respectively.

[0038] Specifically, the push block 570 is located diagonally above the locking pin 720, and the push block 570 has an inclined surface. The push block 570 pushes the locking pin 720 through the inclined surface, causing the locking pin 720 to extend into the locking hole 935. The first spring 730 can drive the locking pin 720 away from the locking hole 935 after the push block 570 moves away from the locking pin 720. When the wheel seat 930 is disassembled from the frame 100, the inclined surface of the push block 570 separates from the locking pin 720. The two only have contact and pushing relationship. Therefore, the locking structure 700 as a whole can be separated from the frame 100 and the transmission structure 500 along with the wheel seat 930 without further separation of the locking structure 700.

[0039] In some embodiments, reference is made to Figure 4The frame 100 is equipped with a pull rope 530, and the operating member 200 is connected to the push block 570 via the pull rope 530. The frame 100 is equipped with a second spring 550. One of the pull rope 530 and the second spring 550 is used to drive the push block 570 to move closer to the locking pin 720, and the other pull rope 530 and the second spring 550 are used to drive the push block 570 away from the locking pin 720. The pull rope 530 can pull the push block 570 to move, so the operating member 200 can smoothly drive the push block 570 to move via the pull rope 530, so that the push block 570 can push or move away from the locking pin 720. The second spring 550 can drive the locking pin 720 to move in the opposite direction, thereby cooperating with the pull rope 530 to achieve the effects of the push block 570 moving closer to the locking pin 720 and moving away from the locking pin 720, thus achieving the purpose of driving the locking pin 720.

[0040] Specifically, the pull rope 530 is used to pull the push block 570 away from the locking pin 720, while the second spring 550 is used to drive the push block 570 to move closer to the locking pin 720.

[0041] In some embodiments, reference is made to Figure 5 The transmission structure 500 includes a gear 330 rotatably mounted on the frame 100, connected to a pull rope 530. An operating member 200 is connected to a connecting member 350, which meshes with the gear 330. The operating member 200 can drive the gear 330 to rotate via the connecting member 350. When the operating member 200 rotates, it will drive the connecting member 350 to rotate as well. Because the connecting member 350 and the gear 330 are meshed, the rotating connecting member 350 will drive the gear 330 to rotate, which in turn drives the pull rope 530 to move, thus smoothly achieving the driving effect of both the pull rope 530 and the push block 570.

[0042] In some embodiments, reference is made to Figure 4 The wheel seat 930, locking structure 700, and pull rope 530 are all in pairs and connected one-to-one. The frame 100 contains a first transmission block 310 and a second transmission block 320, with the two pull ropes 530 connected to the first transmission block 310 and the second transmission block 320 respectively. When the gear 330 rotates, it can drive the first transmission block 310 and the second transmission block 320 to move respectively. The two wheel seats 930 can be used to install casters 900 on the left and right sides or the front and rear sides of the frame 100. When the gear 330 rotates, it will drive the first transmission block 310 and the second transmission block 320 to move respectively, and simultaneously pull the two pull ropes 530 to move. Therefore, directional work for different casters 900 can be carried out simultaneously, effectively reducing the user's operational burden.

[0043] It is foreseeable that the wheel seat 930, locking structure 700, and pull rope 530 can be in three, four, or more sets. As long as at least two of them achieve synchronized movement, it should also be considered part of this solution. The specific implementation method is not unique, but can be adjusted according to actual needs, and is not limited here.

[0044] In some embodiments, reference is made to Figure 6 The gear 330 is equipped with a pushing tooth 335. When the gear 330 rotates, it can push one of the first transmission block 310 and the second transmission block 320 through the pushing tooth 335. During rotation, the gear 330 will push either the first transmission block 310 or the second transmission block 320 through the pushing tooth 335. In this process, the first transmission block 310 or the second transmission block 320 will gradually move away from the gear 330 under the pushing effect. Since only one of the first transmission block 310 and the second transmission block 320 is pushed by the pushing tooth 335 when the gear 330 rotates, only one of the two casters 900 will have a directional effect. Therefore, when the trolley changes its forward direction, the directional switching effect of the front and rear wheels can be achieved by switching the rotation direction of the gear 330, allowing the trolley to switch directly from forward to backward operation.

[0045] Specifically, a transmission component 305 is provided inside the frame 100, and both the transmission component 305 and the first transmission block 310 are located on the outer periphery of the gear 330. When the gear rotates, the push tooth 335 will contact one of the transmission component 305 and the first transmission block 310, and will be misaligned with the transmission component 305 and the first transmission block 310, thereby achieving the effect of orientation only on one side.

[0046] Furthermore, the gear 330 is provided with multiple push teeth 335, and the first transmission block 310 and the second transmission block 320 are respectively connected to different push teeth 335. As long as the gear 330 rotates, it can drive the first transmission block 310 and the second transmission block 320 to move respectively. The specific implementation method is not unique, but can be adjusted according to actual needs, and is not limited here.

[0047] In some embodiments, reference is made to Figure 5At least one of the first transmission block 310 and the second transmission block 320 is connected to a third spring 510. The third spring 510 is used to drive the first transmission block 310 and / or the second transmission block 320 to move closer to the gear 330. The gear 330 drives the first transmission block 310 and the second transmission block 320 away from the gear 330 through its push teeth 335. When the operating member 200 drives the gear 330 to reset, the third spring 510 will automatically drive the first transmission block 310 and the second transmission block 320 to reset, thereby automatically and quickly canceling the directional locking effect of the wheel seat 930, so that the wheel seat 930 can quickly and timely perform steering actions.

[0048] Specifically, both the first transmission block 310 and the second transmission block 320 are equipped with a third spring 510.

[0049] In some embodiments, reference is made to Figure 7 The wheel seat 930 is provided with a rotating shaft 920, and a rotating seat 710 is movably sleeved on the outer periphery of the rotating shaft 920. The rotating seat 710 is provided with a mounting hole 715, and a locking pin 720 is movably disposed in the mounting hole 715. The mounting hole 715 is offset from the rotating shaft 920 and can rotate to align with the locking hole 935. The connection between the rotating shaft 920 and the rotating seat 710 not only allows the rotating seat 710 to rotate smoothly relative to the wheel seat 930, but also allows for relative positioning between the mounting hole 715 and the locking hole 935 through the offset effect between the mounting hole 715 and the rotating shaft 920, ensuring that the locking pin 720 can smoothly extend into the locking hole 935.

[0050] The second aspect of this utility model provides an embodiment of a trolley, including the trolley orientation mechanism described above. When the operating member 200 moves, it can drive the locking structure 700 through the transmission structure 500, thereby achieving the locking or unlocking effect of steering the wheel seat 930. Since the transmission structure 500 is located on the frame 100 and the locking structure 700 is located on the wheel seat 930, and the transmission structure 500 drives the locking structure 700 to move by pushing, the transmission structure 500 and the locking structure 700 can be easily and conveniently separated, thus facilitating the relative assembly and disassembly of the frame 100 and the wheel seat 930. When the wheel seat 930 and the frame 100 are disassembled relative to each other, the transmission structure 500 and the locking structure 700 can be directly separated without additional disassembly work, thus effectively simplifying the disassembly process between the wheel seat 930 and the frame 100, thereby facilitating the maintenance and replacement of components.

[0051] 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.

[0052] 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 stroller orientation mechanism, characterized by, The utility model relates to a kind of pushcart orientation mechanism, including: Frame (100), operation piece (200) is movably arranged; Wheel seat (930), rotatably connected to the frame (100); Locking structure (700), it is arranged between the wheel seat (930), the locking structure (700) is used to the relative fixation or unfixing effect between the frame (100) and the wheel seat (930); Transmission structure (500), it is arranged in the frame (100), the operation piece (200) can push the locking structure (700) by the transmission structure (500) and change its locking state;When and only when the wheel seat (930) is disassembled or assembled by the frame (100), the transmission structure (500) and the locking structure (700) are separated or contacted each other.

2. The pushcart orientation mechanism of claim 1, wherein: The locking structure (700) includes a rotating seat (710) arranged on the frame (100), the rotating seat (710) is rotatably connected to the wheel seat (930), and a locking pin (720) is movably arranged on the rotating seat (710); The wheel seat (930) is provided with a locking hole (935), and the locking pin (720) can move into or away from the locking hole (935).

3. The pushcart orientation mechanism of claim 2, wherein: The transmission structure (500) includes a push block (570) movably arranged in the frame (100), the push block (570) can move close to or away from the locking pin (720), and the push block (570) can push the locking pin (720) and make it move into the locking hole (935); The rotating seat (710) is provided with a first spring (730), the first spring (730) abuts against the locking pin (720) and can drive it to move away from the locking hole (935).

4. The pushcart orientation mechanism of claim 3, wherein: The frame (100) is provided with a pull rope (530), and the operation piece (200) is connected to the push block (570) through the pull rope (530); The frame (100) is provided with a second spring (550), and one of the pull rope (530) and the second spring (550) is used to drive the push block (570) to move close to the locking pin (720), and the other of the pull rope (530) and the second spring (550) is used to drive the push block (570) to move away from the locking pin (720).

5. The pushcart orientation mechanism of claim 4, wherein: The transmission structure (500) comprises a gear (330) rotatably arranged on the frame (100), the gear (330) is connected with the pull rope (530); the operating member (200) is connected with a connecting member (350), the connecting member (350) is engaged with the gear (330), and the operating member (200) can drive the gear (330) to rotate through the connecting member (350).

6. The cart orientation mechanism of claim 5, wherein: The wheel seat (930), the locking structure (700) and the pull rope (530) are two and one-to-one connected, the frame (100) is provided with a first transmission block (310) and a second transmission block (320), and the two pull ropes (530) are connected with the first transmission block (310) and the second transmission block (320) respectively; the gear (330) can drive the first transmission block (310) and the second transmission block (320) to move respectively when rotating.

7. The cart orientation mechanism of claim 6, wherein: The gear (330) is provided with a pushing tooth (335), and the gear (330) can push one of the first transmission block (310) and the second transmission block (320) through the pushing tooth (335) when rotating.

8. The cart orientation mechanism of claim 6, wherein: At least one of the first transmission block (310) and the second transmission block (320) is connected with a third spring (510), and the third spring (510) is used to drive the first transmission block (310) and / or the second transmission block (320) to move close to the gear (330).

9. The cart orientation mechanism of claim 2, wherein: The wheel seat (930) is provided with a rotating shaft (920), and the rotating seat (710) is movably sleeved on the outer periphery of the rotating shaft (920); the rotating seat (710) is provided with a mounting hole (715), the locking pin (720) is movably arranged in the mounting hole (715), the mounting hole (715) is offset from the rotating shaft (920) and can rotate to be aligned with the locking hole (935).

10. A cart characterized by, The cart orientation mechanism comprises the cart orientation mechanism of any one of claims 1 to 9.

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