Frame and wheel connecting device and loading vehicle
The design of the frame and wheel connection device enables convenient storage and low-cost transportation of cargo vehicle parts, solving the problems of lost and damaged parts and improving the convenience and economy of the cargo vehicle.
Patent Information
- Application Number
- CN202421234568.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-07
- Estimated Expiration
- 2034-05-31
AI Technical Summary
When cargo vehicles are folded or disassembled, parts are easily lost and damaged during transportation, leading to assembly difficulties and high transportation costs.
Design a frame and wheel connection device that allows for detachable connection between the wheel axle and the base. The wheel axle is inserted into a sleeve to prevent loss and to protect the wheel axle, thus reducing the need for delicate packaging.
It improves the convenience of storing parts in cargo vehicles and the cost-effectiveness of transport packaging, prevents wheel and axle loss and deformation, and reduces transportation costs.
Smart Images
Figure CN222310649U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transport tools, in particular to a frame and wheel connecting device and a cargo-carrying vehicle. Background Art
[0002] A cargo vehicle, such as a camper, a beach vehicle or a portable outdoor cart, is a foldable or detachable handcart or trolley. It is widely used in family life because of its small size after folding or disassembling and large cargo space after unfolding. It is often used in outdoor leisure and entertainment to load various leisure and entertainment and daily necessities. It is also used in people's daily life such as setting up stalls on the street and moving short distances.
[0003] In order to improve the portability of the cargo carrier, it is often necessary to fold or disassemble the cargo carrier when it is not in use or during transportation, especially for larger parts, such as the wheels of a beach car, which are large in size and need to be separated from the frame to minimize the size and facilitate transportation.
[0004] However, after the vehicle is folded or disassembled, it has many parts, which are prone to loss. For example, the wheel axle of the aforementioned beach car is very easy to be lost after disassembly, which seriously affects the assembly and use of the vehicle. In addition, in the transportation process, in order to prevent the loss and damage of parts, important parts often need to be carefully packaged. For example, if the wheel axle is squeezed and bent during transportation due to careless packaging, it will affect the normal rotation of the wheels of the vehicle, which will seriously increase the transportation and packaging costs of the vehicle.
[0005] Therefore, the convenience of storing the parts after the cargo carrier is folded or disassembled and the low cost of transportation packaging become very prominent. Utility Model Content
[0006] In order to solve at least one aspect of the above problems, the utility model provides a frame and wheel connection device and a cargo carrier, wherein the frame is a frame of a trolley or a handcart, and the frame and wheel connection device comprises:
[0007] Two wheels, respectively arranged on both sides of the frame;
[0008] Two wheel axles, detachably connected to the two wheels in a one-to-one correspondence, one end of each wheel axle extending out from the corresponding wheel;
[0009] Two bases are arranged in parallel on the frame, one end of the wheel axle is inserted into the base and is detachably connected to the base, and each base is provided with a first limiting structure;
[0010] a sleeve, disposed between the two bases, the sleeve cooperating with the two first limiting structures, the first limiting structures being used to prevent the sleeve from being separated from the two bases;
[0011] When stored, one end of the wheel axle passes through the base and is inserted into the sleeve.
[0012] Optionally, the frame is provided with two protruding ends, and the two protruding ends extend forward or backward in parallel.
[0013] The bases are sleeved on the outside of the corresponding protruding ends one by one, the sleeve is placed between the two protruding ends, and one end of each wheel axle passes through the corresponding base and the protruding end and is inserted into the sleeve.
[0014] Optionally, the first limiting structure is a protruding structure, and two first limiting structures are respectively placed in two ends of the sleeve.
[0015] The base is provided with a first through hole, the first through hole penetrates the base and the first limiting structure, and the wheel axle is placed in the first through hole.
[0016] Optionally, a second through hole is opened in the center of the wheel, and a second limiting structure is provided at the other end of the wheel axle, and the second limiting structure is used to prevent the other end of the wheel axle from passing through the first through hole and the second through hole.
[0017] Optionally, an annular groove is formed on the arc surface of the wheel axle, and a clamping component is provided in the base, and the clamping component is used to be clamped in the annular groove, so that the wheel axle and the base can be detachably connected through the cooperation between the annular groove and the clamping component.
[0018] Optionally, the clamping component includes a clamping plate and a spring, both of which are arranged in a clamping slot opened in the base, the spring is used to keep the clamping plate in contact with the arc surface of the wheel axle, and the first through hole penetrates the clamping slot.
[0019] Optionally, one side edge of the card plate extends out of the surface of the base, the spring is placed between the other side edge of the card plate and the bottom surface of the slot, the card plate is provided with a third through hole, and the axle is inserted into the third through hole.
[0020] Optionally, the frame is a foldable frame or a detachable frame.
[0021] In addition, the utility model also provides a cargo-carrying vehicle, which comprises the above-mentioned vehicle frame and wheel connecting device.
[0022] Optionally, the cargo vehicle is a beach vehicle.
[0023] Compared with the prior art, when storing a trolley or handcart, the utility model utilizes the feature that the wheel axle and the base can be detachably connected to separate the wheel axle from the base, and utilizes the detachable connection between the wheel axle and the wheel to separate the wheel axle from the wheel, and then directly inserts one end of the wheel axle into the base and the sleeve, and minimizes the volume of the other end of the wheel axle exposed outside the frame, so as to realize the direct storage of the wheel axle in the frame and prevent the loss of the wheel axle; and the sleeve is sleeved outside the wheel axle, which protects the wheel axle and prevents the wheel axle from being squeezed and deformed by other parts during transportation, saving the delicate packaging of the wheel axle. When unfolding or assembling the trolley or handcart, it is only necessary to pull the wheel axle out of the sleeve and the base, and then connect the wheel axle to the wheel, and then insert the wheel axle into the base again, so as to realize the quick connection and installation of the wheel and the frame. Thereby, the convenience of storing parts of a trolley, handcart or other cargo carrier is realized, and the cost of transportation packaging is low. The convenience of storing the parts of the folded or disassembled cargo carrier and the low cost of transport packaging are effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Figure 1 A schematic structural diagram of a vehicle frame and wheel connection device according to an embodiment of the utility model;
[0025] Figure 2 for Figure 1 Enlarged view of the middle P part;
[0026] Figure 3 Another schematic structural diagram of the frame and wheel connection device of the embodiment of the utility model;
[0027] Figure 4 for Figure 3 Enlarged view of the middle Q section.
[0028] Explanation of the reference numerals: 1. frame; 11. protruding end; 2. wheel; 3. axle; 31. second limiting structure; 32. annular groove; 4. base; 41. first limiting structure; 42. first through hole; 43. clamping plate; 431. third through hole; 44. clamping groove; 45. spring; 5. sleeve. DETAILED DESCRIPTION
[0029] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and understandable, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.
[0030] In the description of the present invention, it should be understood that the terms "upper" and "lower" and the like indicate positions or location relationships that are based on the positions or location relationships when the product is in normal use.
[0031] The terms "first" and "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. The drawings of the embodiments of the utility model are provided with a coordinate system X-axis, Y-axis and Z-axis, wherein the X-axis represents the width direction of the cargo vehicle, that is, its left-right direction, the Y-axis represents the length direction of the cargo vehicle, that is, its front-back direction, and the Z-axis represents the vertical direction, the positive direction of the Z-axis represents the top, and the reverse direction of the Z-axis represents the bottom.
[0032] See also Figures 1 to 4 This embodiment provides a frame and wheel connection device, the frame 1 is a frame of a trolley or a handcart, and the frame and wheel connection device includes:
[0033] Two wheels 2, respectively arranged on both sides of the frame 1;
[0034] Two axles 3 are detachably connected to the two wheels 2 in a one-to-one correspondence, and one end of the axle 3 extends out of the corresponding wheel 2;
[0035] Two bases 4 are arranged in parallel on the frame 1, one end of the wheel axle 3 is inserted into the base 4 and is detachably connected to the base 4, and each base 4 is provided with a first limiting structure 41;
[0036] A sleeve 5 is disposed between the two bases 4, and the sleeve 5 cooperates with the two first limiting structures 41, and the first limiting structures 41 are used to prevent the sleeve 5 from being separated from the two bases 4;
[0037] When stored, one end of the wheel axle 3 passes through the base 4 and is inserted into the sleeve 5 .
[0038] When storing a trolley or handcart, the wheel axle 3 is separated from the base 4 by utilizing the detachable connection between the wheel axle 3 and the base 4, and the wheel axle 3 is separated from the wheel 2 by utilizing the detachable connection between the wheel axle 3 and the wheel 2, and then one end of the wheel axle 3 is directly inserted into the base 4 and the sleeve 5, and the volume of the other end of the wheel axle 3 exposed outside the frame 1 is reduced as much as possible, so that the wheel axle 3 can be directly stored in the frame 1 to prevent the wheel axle 3 from being lost; and the sleeve 5 is sleeved outside the wheel axle 3 to protect the wheel axle 3, preventing the wheel axle 3 from being squeezed and deformed by other parts during transportation, saving the delicate packaging of the wheel axle 3. When unfolding or assembling the trolley or handcart, it is only necessary to pull the wheel axle 3 out of the sleeve 5 and the base 4, and then after connecting the wheel axle 3 to the wheel 2, the wheel axle 3 is inserted into the base 4 again to realize the quick connection and installation of the wheel 2 and the frame 1. Thereby, the convenience of storing parts of a trolley, a handcart or the like is improved, and the cost of transport packaging is reduced. The convenience of storing parts after the trolley is folded or disassembled and the cost of transport packaging are effectively improved.
[0039] See also Figures 1 to 4 Further, the frame 1 is provided with two protruding ends 11, and the two protruding ends 11 protrude forward or backward in parallel.
[0040] The bases 4 are sleeved on the outside of the corresponding protruding ends 11 one by one, the sleeve 5 is placed between the two protruding ends 11, and one end of each axle 3 passes through the corresponding base 4 and the protruding end 11 and is inserted into the sleeve 5.
[0041] Although the detachable connection between the wheel axle 3 and the base 4 can improve the convenience of folding or disassembling the vehicle, it is necessary to arrange the wheels 2 at the corresponding extension ends 11 one by one to ensure that the vehicle is easy to fold. This results in poor rigidity of the frame 1 between the two extension ends 11, which is easy to cause partial deformation of the frame 1 during long-term heavy-load pushing and pulling on the beach or muddy road.
[0042] To this end, the sleeve 5 is placed between the two protruding ends 11 , which can not only facilitate the storage of the wheel 2 , but also effectively support the bottom of the frame 1 and improve the rigidity of the frame 1 .
[0043] See also Figures 1 to 4 Furthermore, the first limiting structure 41 is a protruding structure, and two first limiting structures 41 are respectively placed in the two ends of the sleeve 5.
[0044] The base 4 is provided with a first through hole 42 , the first through hole 42 passes through the base 4 and the first limiting structure 41 , and the axle 3 is disposed in the first through hole 42 .
[0045] It should be noted that the first limiting structure 41 in this embodiment can be a protruding structure and inserted into the sleeve 5; in addition, the first limiting structure 41 can also be a protruding structure and a concave structure is provided on its protruding surface, so that the two ends of the sleeve 5 are respectively placed in the corresponding concave structures, thereby limiting the movement of the sleeve 5.
[0046] The first limiting structure 41 here is a protruding structure, which can make the appearance of the first limiting structure 41 simple and facilitate injection molding processing.
[0047] See also Figures 1 to 4 Furthermore, a second through hole is opened in the center of the wheel 2, and a second limiting structure 31 is provided at the other end of the axle 3, and the second limiting structure 31 is used to prevent the other end of the axle 3 from passing through the first through hole 42 and the second through hole.
[0048] The second limiting structure 31 here can be a truncated cone structure or a raised structure, as long as it can limit the axial movement of the axle 3 and prevent it from being separated from the wheel 2, or can prevent the axle 3 from falling into the sleeve 5 and being unable to be removed.
[0049] See also Figures 1 to 4 Furthermore, the frame 1 is a foldable frame or a detachable frame.
[0050] This facilitates the transportation of the foldable frame or the detachable frame after storage.
[0051] See also Figures 1 to 4 Furthermore, a circular groove 32 is provided on the arc surface of the wheel shaft 3, and a clamping component is provided in the base 4, and the clamping component is used to be clamped in the circular groove 32. The circular groove 32 cooperates with the clamping component, so that the wheel shaft 3 and the base 4 can be detachably connected.
[0052] The annular groove 32 is clamped by a clamping component to prevent the wheel axle 3 from moving in the axial direction and to prevent the wheel 2 from being separated from the frame 1 , thereby achieving connection between the wheel 2 and the frame 1 .
[0053] See also Figures 1 to 4 Further, the clamping component includes a clamping plate 43 and a spring 45, both of which are arranged in a clamping groove 44 provided in the base 4, and the spring 45 is used to keep the clamping plate 43 in contact with the arc surface of the wheel shaft 3. The first through hole 42 penetrates the clamping groove 44.
[0054] The spring 45 is used to keep the clamping plate 43 in contact with the arc surface of the axle 3, so as to push up the side wall of the axle 3, increase the friction force on the axial movement of the axle 3, and prevent the axle 3 from moving back and forth.
[0055] See also Figures 1 to 4Furthermore, one side edge of the card plate 43 extends out of the surface of the base 4, the spring 45 is placed between the other side edge of the card plate 43 and the bottom surface of the card slot 44, the card plate 43 is provided with a third through hole 431, and the axle 3 is inserted into the third through hole 431.
[0056] By pressing the card plate 43 to extend out of the side edge of the base 4 surface, the spring 45 between the card plate 43 and the bottom surface of the card groove 44 is deformed, so that the annular groove 32 of the axle 3 is separated from the side wall of the third through hole 431, and then the axle 3 is pulled out from the base 4 to achieve the separation of the base 4 and the axle 3.
[0057] On the contrary, when installing the wheel axle 3 into the base 4, the wheel axle 3 is inserted into the first through hole 42, and when one end of the wheel axle 3 passes through the slot 44, one side edge of the clamping plate 43 is pressed to make one end of the wheel axle 3 pass through the third through hole 431, and then one side edge of the clamping plate 43 is released, and when the annular groove 32 of the wheel axle 3 passes through the third through hole 431, the side wall of the third through hole 431 is clamped into the annular groove 32 under the elastic force of the spring 45, thereby preventing the wheel axle 3 from axial movement and realizing the fixed connection between the wheel axle 3 and the base 4.
[0058] In this way, by extending one side edge of the clamping plate 43 out of the surface of the base 4, the detachable connection between the axle 3 and the base 4 is conveniently controlled.
[0059] Preferably, the third through hole 431 here may include a large through hole and a small through hole provided on the surface of the card plate 43, the large through hole and the small through hole are provided adjacent to each other, the large through hole and the small through hole are connected, and the diameter of the small through hole is larger than the inner diameter of the annular groove 32, so that the card plate 43 at the small through hole can be stuck in the annular groove 32. The diameter of the large through hole is larger than the diameter of the axle 3, so that the axle 3 can be inserted into the large through hole.
[0060] Preferably, limiting components are respectively provided at the base 4 and the card plate 43 to prevent the card plate 43 from being separated from the card slot 44. The limiting components may include a long through hole and a limiting rod opened on the board surface of the card plate 43. The long side of the long through hole extends along the moving direction of the card plate 43. The limiting rod is inserted into the long through hole and placed in the side wall of the card slot 44.
[0061] In addition, this embodiment also provides a vehicle for transporting goods, and the vehicle for transporting goods includes the vehicle frame and wheel connecting device. Since the technical effect achieved by the vehicle for transporting goods is the same as that of the vehicle frame and wheel connecting device, the vehicle for transporting goods will not be further explained.
[0062] See also Figures 1 to 4 , further, the cargo vehicle is a beach vehicle.
[0063] Considering that the beach wheels of a beach vehicle are larger than ordinary wheels 2, the wheels 2 of the beach vehicle need to be separated from the frame 1 during storage. Therefore, the frame and wheel connection device in this embodiment is more applicable to beach vehicles.
[0064] Although the disclosure is as above, the protection scope of the disclosure is not limited thereto. Those skilled in the art may make various changes and modifications without departing from the spirit and scope of the disclosure, and these changes and modifications will fall within the protection scope of the utility model.
Claims
1. A frame and wheel connection device, characterized in that: The frame (1) is a frame (1) of a wheelbarrow or a trolley, and the frame and wheel connection device comprises: Two wheels (2) are respectively arranged on two sides of the frame (1); Two wheel axles (3) are detachably connected to the two wheels (2) in a one-to-one correspondence, and one end of the wheel axle (3) extends out of the corresponding wheel (2); Two bases (4) are arranged in parallel on the frame (1); one end of the wheel axle (3) is inserted into the base (4) and is detachably connected to the base (4); each base (4) is provided with a first limiting structure (41); A sleeve (5) is arranged between the two bases (4), the sleeve (5) cooperates with the two first limiting structures (41), and the first limiting structures (41) are used to prevent the sleeve (5) from being separated from the two bases (4); When stored, one end of the wheel axle (3) passes through the base (4) and is inserted into the sleeve (5).
2. The frame and wheel connection device according to claim 1, characterized in that: The frame (1) is provided with two protruding ends (11), and the two protruding ends (11) protrude forward or backward in parallel. The bases (4) are sleeved on the outside of the corresponding protruding ends (11) one by one, the sleeve (5) is placed between the two protruding ends (11), and one end of each wheel axle (3) passes through the corresponding base (4) and the protruding end (11) and is inserted into the sleeve (5).
3. The frame and wheel connection device according to claim 1, characterized in that: The first limiting structure (41) is a protruding structure, and two first limiting structures (41) are respectively placed in the two ends of the sleeve (5). The base (4) is provided with a first through hole (42), the first through hole (42) passes through the base (4) and the first limiting structure (41), and the wheel axle (3) is disposed in the first through hole (42).
4. The frame and wheel connection device according to claim 3, characterized in that: A second through hole is provided in the center of the wheel (2), and a second limiting structure (31) is provided at the other end of the wheel axle (3), wherein the second limiting structure (31) is used to prevent the other end of the wheel axle (3) from passing through the first through hole (42) and the second through hole.
5. The frame and wheel connection device according to claim 3, characterized in that: The arc surface of the wheel shaft (3) is provided with an annular groove (32), and a clamping component is arranged in the base (4). The clamping component is used to be clamped in the annular groove (32). The annular groove (32) cooperates with the clamping component so that the wheel shaft (3) and the base (4) can be detachably connected.
6. The frame and wheel connection device according to claim 5, characterized in that: The clamping component comprises a clamping plate (43) and a spring (45), wherein the clamping plate (43) and the spring (45) are both arranged in a clamping groove (44) provided in the base (4), and the spring (45) is used to keep the clamping plate (43) in contact with the arc surface of the wheel shaft (3), and the first through hole (42) penetrates the clamping groove (44).
7. The frame and wheel connection device according to claim 6, characterized in that: One side edge of the card plate (43) extends out of the surface of the base (4); the spring (45) is placed between the other side edge of the card plate (43) and the bottom surface of the card slot (44); the card plate (43) is provided with a third through hole (431); and the wheel axle (3) is inserted into the third through hole (431).
8. The frame and wheel connection device according to any one of claims 1 to 7, characterized in that: The frame (1) is a foldable frame or a detachable frame.
9. A cargo vehicle, characterized in that: The cargo carrier comprises a frame and wheel connection device as claimed in any one of claims 1 to 8.
10. The cargo carrier according to claim 9, characterized in that: The cargo vehicle is a beach vehicle.