A new foldable logistics vehicle

Abstract

The utility model discloses a novel collapsible logistics vehicle, this novel collapsible logistics vehicle includes handle and frame, handle includes the hand pole and extension bar of mutual connection, and extension bar includes extension and folding part. The utility model provides a novel collapsible logistics vehicle has simple structure, and the effect that maintenance is convenient, can through mechanical structure and realizes the automatic guide and spacing of folding state, can strengthen the stability and operating safety in the use process of vehicle and can through simple reliable mechanical linkage mode and complete folding and unfolding action.

Description

Technical Field

[0001] This utility model belongs to the field of logistics vehicle technology, specifically, it relates to a new type of foldable logistics vehicle. Background Technology

[0002] Small logistics vehicles are widely used in various industries. In actual decoration scenarios, the weight of common goods is usually less than 50 kilograms, but existing small logistics vehicles still have many problems when dealing with goods of this weight.

[0003] A common type of logistics vehicle features handlebars that can be folded down, significantly reducing the overall height of the vehicle and making it easier to store. During the folding process, the angle between the handlebars and the floor gradually decreases until they fit together, saving lateral space. This folding method is simple to operate, and the overall volume of the folded vehicle is greatly reduced.

[0004] Common folding logistics vehicles typically use a pivot instead of a traditional hinge, embedding the pivot at the connection between the handlebar and the floor, and achieving smooth rotation through a bearing structure. However, this structure has shortcomings in use, as follows: Logistics vehicles often encounter obstacles in their path during use, such as numerous cables on the ground. This necessitates frequently lifting the vehicle by using the handrail. However, this frequent lifting can cause significant stress on the axle and related connecting parts, making them prone to damage.

[0005] Therefore, there is an urgent need in this technical field for a new type of foldable logistics vehicle that can solve the relevant problems. Utility Model Content

[0006] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a new type of foldable logistics vehicle.

[0007] To achieve the aforementioned objectives, the technical solution adopted by this utility model includes: A novel foldable logistics vehicle includes a handle and a frame. The handle includes a hand-held lever and an extension lever connected to each other. The extension lever includes an extension portion and a folding portion, with the folding portion hinged to the end of the extension portion. The frame is provided with a connecting portion, through which the extension lever is connected to the frame.

[0008] The connecting part includes a vertical sleeve. The inner wall of the sleeve is provided with a track groove and a guide. The top and bottom of the track groove are both arc-shaped. The guide is located inside the track groove and divides the track groove into a first channel, an upper bend channel, a second channel, and a lower bend channel. The first channel and the second channel are both parallel to the length direction of the sleeve. The first channel, the upper bend channel, the second channel, and the lower bend channel are connected in sequence. The first channel and the lower bend channel are connected, so that the first channel, the upper bend channel, the second channel, and the lower bend channel form a closed channel that is connected end to end.

[0009] The end of the folded part is rotatably connected to a rotating plate, and a limiting rod located in the track groove is connected to the rotating plate.

[0010] When the limiting rod moves upward from the lower curved channel, the guide part guides the limiting rod into the first channel; when the limiting rod moves downward from the upper curved channel, the guide part guides the limiting rod into the second channel.

[0011] The connecting part also includes a blocking block and a spring. The blocking block is slidably connected to the inner wall of the sleeve. One end of the spring is connected to the blocking block and the other end is connected to the sleeve. A through hole is provided on the rotating plate, through which the blocking block can pass.

[0012] When the limiting rod is in the first channel, the rotating plate has a portion located on the movement trajectory of the blocking block; when the limiting rod is in the second channel, the perforation is located on the movement trajectory of the blocking block. When the limit rod is in the upper bend channel, the folding part extends out of the sleeve.

[0013] By adopting the above technical solution, when the load of the logistics vehicle is less than 50 kg, in areas requiring frequent lifting, the transportation efficiency of the logistics vehicle can be effectively improved while ensuring structural stability, and damage caused by excessive stress on components can be avoided. In normal use, this solution has a simple structure, is easy to maintain, and can improve the transportation efficiency of folding logistics vehicles.

[0014] Preferably, a slide rail is provided on the inner wall of the sleeve, and a groove matching the slide rail is provided on the blocking block.

[0015] A slide rail is installed on the inner wall of the sleeve. By utilizing the cooperation between the slide rail and the groove on the blocking block, it is ensured that the blocking block can only move in a specific direction without deviation. This design provides extremely high guiding accuracy for the cooperation between the slide rail and the groove, ensuring the straightness and stability of the blocking block's movement. Furthermore, by reducing unnecessary friction and impact, it extends the service life of the device.

[0016] Understandably, lubricant can also be applied to the guide rail to enhance the flexibility and corrosion resistance of the parts.

[0017] Preferably, the inner wall of the sleeve is further provided with a vertical third channel, which is connected to the second channel.

[0018] A vertical third channel can also be provided on the inner wall of the sleeve. The third channel is connected to the second channel, extending the defined channel and further increasing the range of motion of the blocking block.

[0019] Preferably, a mounting ring is provided on the inner wall of the sleeve, the folded portion passes through the mounting ring, one end of the spring is connected to the connecting blocking block, and the other end is connected to the mounting ring. It is understood that the mounting ring provided on the inner wall of the sleeve can be single or multiple, which will contribute to the stability of the entire structure.

[0020] Specifically, the folded portion passes through the mounting ring, one end of the spring is connected to the connecting blocking block, and the other end is connected to the mounting ring. The mounting ring is passed through by the folded portion, and the mounting ring is connected to one end of the spring, while the other end of the spring is connected to the blocking block. This design not only enhances the stability of the sleeve structure but also optimizes the movement performance of the folded portion and improves connection reliability.

[0021] Preferably, the number of perforations is several, the number of blocking blocks and springs is equal to the number of perforations, each blocking block is connected to one spring, and each perforation corresponds to one blocking block.

[0022] The rotating plate has several perforations, the number of which is equal to the number of blocking blocks and springs. Each blocking block is connected to one of the springs, and each perforation corresponds to one blocking block. This structural design not only enables precise positioning control of the device but also reduces structural complexity.

[0023] Preferably, there are two extension rods, which are respectively connected to both ends of the handle, making the handle U-shaped.

[0024] Specifically, the handle adopts a symmetrical design, consisting of a hand grip and two extension bars on both sides forming a U-shaped handle. There are two extension bars, which are connected to the two ends of the hand grip respectively; the number of connecting parts is strictly matched with the extension bars to ensure that each extension bar is stably connected to the hand grip through an independent connecting part.

[0025] Preferably, when the limiting rod is located within the downward curved channel, the rotating plate is located below the blocking block, and the blocking block is located at its lowest position.

[0026] Specifically, when the limit rod is in the downward bend channel, the rotating plate is directly below the blocking block. At this time, the blocking block has moved to the lowest point of its stroke, and the folding part can extend from the sleeve to perform the folding action. It can be understood that when the limit rod is in the upward bend channel, the rotating plate is directly above the blocking block. At this time, the blocking block has moved to the highest point of its stroke, and the folding part cannot extend from the sleeve to perform the folding action.

[0027] Preferably, the lower end of the guide portion has a first guide slope close to the first channel, and the upper end of the guide portion has a second guide slope close to the second channel.

[0028] The lower end of the guide section is provided with a first guide slope that extends toward the first channel; the upper end is provided with a second guide slope that extends toward the second channel.

[0029] In this guide design, the synergistic effect of the first and second guide ramps can precisely control the direction of the object's movement and effectively reduce contact friction.

[0030] Compared with the prior art, the advantages of this utility model include: (1) The present invention provides a novel foldable logistics vehicle with a simple structure and convenient maintenance; (2) The present invention provides a novel foldable logistics vehicle that can achieve automatic guidance and limiting in the folded state through a mechanical structure; (3) The present invention provides a novel foldable logistics vehicle that can enhance the stability and operational safety of the vehicle during use. (4) The present invention provides a novel foldable logistics vehicle that can complete the folding and unfolding actions through a simple and reliable mechanical linkage. Attached Figure Description

[0031] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0032] Figure 1 This is a schematic diagram of a novel foldable logistics vehicle according to the present invention. Figure 2 This is a schematic diagram of the horizontal cross-section of the folding part of the handle in this utility model; Figure 3 This is a schematic diagram of the side cross-section of the folding part of the handle in this utility model; Figure 4 This is a schematic diagram of the trajectory groove in this utility model.

[0033] Figure label: 1. Handlebar; 2. Frame; 3. Hand grip; 4. Extension bar; 5. Extension section; 6. Folding section; 7. Connecting section; 8. Sleeve; 9. Track groove; 10. Guide section; 11. First channel; 12. Upward curve channel; 13. Second channel; 14. Downward curve channel; 15. Rotating plate; 16. Limiting rod; 17. Blocking block; 18. Spring; 19. Perforation; 20. Slide rail; 21. Groove; 22. Third channel; 23. Mounting ring; 24. First guide ramp; 25. Second guide ramp. Detailed Implementation

[0034] In view of the shortcomings of the prior art, the inventors of this case, through long-term research and extensive practice, have proposed the technical solution of this utility model. The technical solution, its implementation process, and principles will be further explained below with reference to the accompanying drawings and specific implementation examples.

[0035] It should be noted that the embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention. The described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, the present invention covers any substitutions, modifications, equivalent methods and solutions made within the spirit, principles and scope of the present invention as defined by the claims. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0036] In the description of this application, the terms "first," "second," "third," and similar words do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "a" or "one," and similar words, do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including," and similar words, mean that the elements or objects preceding "comprising" or "including" encompass the elements or objects listed following "comprising" or "including," and their equivalents, but do not exclude other elements or objects. The terms "connected" or "linked," and similar words, are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect.

[0037] In the description of this application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, 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 application. Furthermore, when using positional terms such as "both sides," "outer side," and "upper and lower," it should be understood that they are used only for ease of understanding and description, taking into account that the structure may be oriented to other positions.

[0038] In the description of this application, unless otherwise expressly specified and limited, the technical or scientific terms used shall have the ordinary meaning understood by a person with ordinary skills in the art to which this application pertains. Terms such as “installation,” “connection,” and “joining” shall be interpreted broadly, for example, as fixed connection, detachable connection, mating connection, or integral connection. For a person skilled in the art, the specific meaning of the above terms in this application can be understood according to the specific circumstances.

[0039] This utility model embodiment is intended to introduce and explain the structural composition of a novel foldable logistics vehicle and the cooperation relationship between the various components. Unless otherwise specified, the dimensions, materials, and manufacturing processes of the various components suitable for the novel foldable logistics vehicle in this utility model embodiment can be selected according to specific circumstances, and no special limitations or explanations are made here.

[0040] Furthermore, to provide the public with a better understanding of this utility model, certain specific details are described in detail in the following description. However, those skilled in the art can fully understand this utility model even without these detailed descriptions.

[0041] Example 1 Please see Figure 1 and Figure 2 A novel foldable logistics vehicle includes a handle and a frame. The handle consists of a handhold and an extension rod. The extension rod includes an extension portion and a folding portion. The extension portion is fixed to the end of the handhold; the folding portion is hinged to the end of the extension portion and can be folded around an axis relative to the extension portion to achieve the shrinkage of the overall structure, thus facilitating storage and transportation when not in use. The frame has a connecting part that mates with the handlebars, allowing the extension rod to connect to the frame via the connecting part. This structure mainly includes a vertically arranged sleeve, which is hollow inside. The inner side of the sleeve has a track groove, which is a groove-shaped structure used to constrain and guide the movement path. The overall structure of the track groove is a closed loop with an arc as the transition curve to prevent jamming or drastic changes in direction during movement.

[0042] In addition, a rotating plate is provided at the end of the folded part, and a limiting rod is provided on the rotating plate. The limiting rod is located in the sleeve track groove.

[0043] The connecting part also includes a blocking block and a spring, wherein one end of the spring is connected to the blocking block and the other end is connected to the sleeve; the blocking block is slidably connected to the inner wall of the sleeve. It can be understood that a slide rail is provided on the inner wall of the sleeve, and the blocking block is provided with a groove that matches the inner wall of the sleeve.

[0044] Furthermore, a mounting ring is provided on the inner wall of the sleeve. The folded part passes through the mounting ring, one end of the spring is connected to the blocking block, and the other end is connected to the mounting ring. It can be understood that the mounting ring provided on the inner wall of the sleeve can be a single ring or multiple rings, which is beneficial to the stability of the structure.

[0045] Furthermore, there are two extension rods, which are respectively connected to both ends of the hand handle, making the handle U-shaped.

[0046] This solution divides the extension rod of the logistics vehicle into an extension section and a folding section, and uses a hinge structure to achieve the overall retraction of the structure, which significantly improves the convenience of storage and transportation of the logistics vehicle. At the same time, the vertical sleeve and internal track groove structure not only provide a stable movement path for the limit rod, but also effectively prevent jamming during movement, improve the smoothness of operation and the reliability of the structure, and improve the practicality and user experience of the logistics vehicle as a whole.

[0047] A guide section is provided inside the track groove, dividing the track groove into multiple channel sections: the first channel, parallel to the length of the sleeve; the upper curved channel, with a curved transition shape, located in the upper half of the track groove, used to guide the limiter to rise; the second channel, also parallel to the length of the sleeve; and the lower curved channel, connected to the first channel, located in the lower half of the track groove, serving as a curved section for the cyclic operation of the limiter; the four channel areas are interconnected, forming a closed path loop. Furthermore, a vertical third channel can be provided on the inner wall of the sleeve, which is connected to the second channel.

[0048] The rotating plate is also provided with a perforation, which is located within the movement path of the blocking block.

[0049] Furthermore, the number of perforations can be several, the number of blocking blocks and springs is equal to the number of perforations, each blocking block is connected to one spring, and each perforation corresponds to one blocking block.

[0050] Furthermore, the lower end of the guide has a first guide slope close to the first channel, and the upper end of the guide has a second guide slope close to the second channel.

[0051] This solution divides the track groove into multiple channel sections through the guide section, realizing the cyclic movement of the limiting mechanism, which further enhances the reliability and service life of the structure. Combined with the linkage between the perforations on the rotating plate and the blocking blocks, the folding and unfolding process is more precise and controllable, thereby comprehensively improving the practicality, operability and user experience of the logistics vehicle.

[0052] For example, when the user operates the handle, the folding part of the extension rod rotates around the axis, and at the same time drives the rotating plate to move together, so that the limit rod slides along the track groove.

[0053] When the limiting rod is in the first channel, part of the rotating plate enters the path area of ​​the blocking block. At this time, the blocking block is engaged in the through hole of the rotating plate under the action of the spring, realizing the limiting and locking functions, keeping the extension rod in the extended state, and ensuring that the logistics vehicle has a stable support structure. When the user further manipulates the handle, causing the limit rod to slide from the first channel to the downward curve channel, the guide unit guides it back to the starting point of the first channel, forming a closed loop, thereby realizing continuous operation and multi-position locking functions; When the limit bar slides to the upper curved channel, the curved shape of the upper curved channel causes the folding part to expand outward, thereby fully unfolding the handle assembly, which is suitable for long-distance transportation or situations requiring a large operating space. When the device is in the downward-curved channel state, the folding part is in a foldable state, and the limiting rod is not affected by the blocking block at this point and can slide freely, which makes it easy for users to quickly complete the unfolding or folding action according to their needs, thus enhancing the adaptability and flexibility of the device.

[0054] Through a series of actions, the logistics vehicle can flexibly switch between unfolded and folded states, taking into account ease of use, structural stability, and storage space efficiency. This solution realizes the functions of folding, stable locking, and quick reset of the logistics vehicle, and has good structural compactness and ease of operation.

[0055] It should be understood that the above embodiments are only for illustrating the technical concept and features of this utility model, and are intended to enable those skilled in the art to understand the content of this utility model and implement it accordingly. It should not be considered that the specific implementation of this utility model is limited to these descriptions. For those skilled in the art to which this utility model pertains, several simple deductions or substitutions can be made without departing from the concept of this utility model. All equivalent changes or modifications made in accordance with the spirit and essence of this utility model should be covered within the protection scope of this utility model.

Claims

1. A novel foldable logistics vehicle, comprising a handle (1) and a frame (2), wherein the handle (1) includes a handhold rod (3) and an extension rod (4) connected to each other, characterized in that, The extension rod (4) includes an extension (5) and a folding part (6), the folding part (6) being hinged to the end of the extension (5); a connecting part (7) is provided on the frame (2), and the extension rod (4) is connected to the frame (2) through the connecting part (7). The connecting part (7) includes a vertical sleeve (8). The inner wall of the sleeve (8) is provided with a track groove (9) and a guide part (10). The top and bottom of the track groove (9) are arc-shaped. The guide part (10) is located in the track groove (9) and divides the track groove (9) into a first channel (11), an upper curved channel (12), a second channel (13), and a lower curved channel (14). The first channel (11) and the second channel (13) are parallel to the length direction of the sleeve (8). The first channel (11), the upper curved channel (12), the second channel (13), and the lower curved channel (14) are connected in sequence. The first channel and the lower curved channel (14) are connected, so that the first channel (11), the upper curved channel (12), the second channel (13), and the lower curved channel (14) form a closed channel with the ends connected. The end of the folding part (6) is rotatably connected to a rotating plate (15). A limiting rod (16) located in the track groove (9) is connected to the rotating plate (15). The connecting part (7) also includes a blocking block (17) and a spring (18). The blocking block (17) is slidably connected to the inner wall of the sleeve (8). One end of the spring (18) is connected to the blocking block (17), and the other end is connected to the sleeve (8). The rotating plate (15) is provided with a through hole (19), and the blocking block (17) passes through the through hole (19).

2. The novel foldable logistics vehicle according to claim 1, characterized in that: The inner wall of the sleeve (8) is provided with a slide rail (20), and the blocking block (17) is provided with a groove (21) that matches the slide rail.

3. The novel foldable logistics vehicle according to claim 1, characterized in that: The inner wall of the sleeve (8) is also provided with a vertical third channel (22), which is connected to the second channel (13).

4. A novel foldable logistics vehicle according to claim 1, characterized in that: An installation ring (23) is provided on the inner wall of the sleeve (8). The folding part (6) passes through the installation ring (23). One end of the spring (18) is connected to the blocking block (17), and the other end is connected to the installation ring (23).

5. A novel foldable logistics vehicle according to claim 1, characterized in that: The number of the perforations (19) is several, the number of the blocking blocks (17) is equal to the number of the springs (18), the number of the springs (18) is equal to the number of the perforations (19), each blocking block (17) is connected to one spring (18), and each perforation (19) corresponds to one blocking block (17).

6. A novel foldable logistics vehicle according to claim 1, characterized in that: There are two extension rods (4), and the two extension rods (4) are respectively connected to the two ends of the hand handle (3), so that the handle (1) is U-shaped.

7. A novel foldable logistics vehicle according to claim 1, characterized in that: When the limiting rod (16) is located in the downward curved channel (14), the rotating plate (15) is located below the blocking block (17), and the blocking block (17) is located at the lowest position.

8. A novel foldable logistics vehicle according to claim 7, characterized in that: The lower end of the guide portion (10) has a first guide slope (24) close to the first channel (11), and the upper end of the guide portion has a second guide slope (25) close to the second channel (13).

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