Trolley
Through the design of sliding components and buckle parts, combined with the optimization of hook parts and arc-shaped parts, the stability problem of the trolley when unfolding and using is solved, achieving the effect of stable deployment and simple folding.
Patent Information
- Application Number
- CN202421030191.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-05-13
AI Technical Summary
Existing foldable trolleys are prone to instability when deployed and used, resulting in inconvenience in use.
The design includes a sliding assembly and a buckle, and the up and down sliding of the sliding body is controlled by snapping and disengaging the buckle block to ensure that the trolley is stable when unfolded, and the design of the hook and arcuate parts prevents improper folding.
The trolley is achieved when deployed and simplifies the folding and deployment process, avoiding unnecessary friction and wear.
Smart Images
Figure CN222179550U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of article pushing tools, in particular to a trolley. Background Art
[0002] In order to facilitate people to carry more items at one time, people have developed a trolley, which is a transport vehicle that is pushed and pulled by manpower. People can put more items on the trolley and carry them at one time, which saves people's carrying time and makes trolleys ubiquitous in daily life. Although the existing transport technology has been continuously developing and improving, the trolley is still an indispensable transport tool and has been used because of its low cost and simple operation, and can work in places where vehicles are inconvenient to enter.
[0003] When the existing trolley is not in use, the overall volume is large and it will take up a large storage space, so people have developed and designed a foldable trolley. The existing foldable trolley will achieve folding by setting a sliding sleeve to slide up and down on the middle pole to cooperate with the connecting rod to pull the rod bodies on both sides of the middle pole closer to each other. During the unfolding and use process, it is easy to fold incorrectly, resulting in the problem of unstable unfolding and use.
[0004] In view of the above problems, it is necessary to study a foldable trolley that can be stably unfolded for use. Summary of the invention
[0005] The utility model aims to provide a trolley which can be stably unfolded for use and can be folded.
[0006] In order to achieve the above-mentioned purpose, the solution of the utility model is: a trolley, comprising:
[0007] The cam is an assembly made of a plurality of independently controlled wheels, the plurality of independently controlled wheels are connected to the plurality of independently controlled wheels, and the plurality of independently controlled wheels are connected to the plurality of independently controlled wheels.
[0008] Furthermore, the end of the first support frame away from the middle pole and / or the end of the second support frame away from the middle pole can be pivotally connected to a hook member, and the middle pole is provided with a hanging column above the sliding assembly. When the trolley is folded, the hook mouth of the hook member is inserted into the hanging column, and there is a gap between the hanging column and the sliding assembly.
[0009] Preferably, a folding piece is formed on the hook member, and the hook member can be rotated downward until the folding piece abuts against the first support frame or the second support frame.
[0010] Furthermore, the upper ends adjacent to the first support frame and the second support frame are pivotally connected by fixing two upper pivot plates, and the upper pivot plates are pivotally connected together, and the adjacent ends of the upper pivot plates form an arc portion that bends from top to bottom away from each other.
[0011] Preferably, a locking surface is formed on the lower surface of the arc-shaped portion, and a support block is protruded from one of the pivot plates on a side away from the locking surface. When the trolley is unfolded for use, the locking surface of the other pivot plate is locked on the support block.
[0012] Furthermore, the adjacent lower ends of the first support frame and the second support frame are pivotally connected by fixing two lower pivot plates, and an inwardly bent folding plate is formed below the lower pivot plate, and the folding plate is provided with an embedding hole for the elastic gasket to be embedded.
[0013] Furthermore, a hand-held plate protruding outward is fixedly provided on the middle vertical pole.
[0014] Preferably, a push-pull portion bent away from the central upright pole is formed between the ends of the first support frame and / or the second support frame away from the central upright pole.
[0015] Preferably, the push-pull portion has an inverted U-shape in cross section.
[0016] Further, the first supporting frame includes two first end uprights arranged at intervals and two first cross braces arranged at intervals up and down, the first cross brace is fixed between the first end uprights, a first upper storage net is arranged on the first cross brace located above, the first upper storage net is pivotally arranged between the first end upright and the middle upright, a first lower storage net is arranged on the first cross brace located below, and the first lower storage net is pivotally arranged between the first end upright and the middle upright; the second supporting frame includes two second end uprights arranged at intervals and two second cross braces arranged at intervals up and down, the second cross brace is fixed between the second end uprights, a second upper storage net is arranged on the second cross brace located above, the second upper storage net is pivotally arranged between the second end upright and the middle upright, a second lower storage net is arranged on the second cross brace located below, and the second lower storage net is pivotally arranged between the second end upright and the middle upright.
[0017] After adopting the above scheme, since the sliding assembly of the utility model includes a sliding body and a buckling piece, when the user needs to fold the trolley, the user can fold the trolley by bending the buckling block of the buckling piece to make the buckling block disengage from the buckle hole of the sliding body; when the user needs to unfold and use the trolley, the buckling block is in a state of being disengaged from the buckle hole of the sliding body, and the sliding body slides along the middle vertical rod until the trolley is fully unfolded, and the buckling block is buckled into the buckle hole. At this time, the buckling block is tightly clamped against the middle vertical rod, and the sliding body cannot slide along the middle vertical rod, thereby allowing the trolley to be stably unfolded and used. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a three-dimensional diagram (1) of the first embodiment of the utility model.
[0019] Figure 2 This is a three-dimensional diagram (2) of the first embodiment of the utility model.
[0020] Figure 3 This is a three-dimensional diagram (3) of the first embodiment of the utility model.
[0021] Figure 4 This is a three-dimensional diagram (4) of the first embodiment of the utility model.
[0022] Figure 5 It is a three-dimensional diagram of the sliding assembly of the utility model.
[0023] Figure 6 for Figure 5 Exploded view of (1).
[0024] Figure 7 for Figure 5 Exploded view of (2).
[0025] Figure 8It is a three-dimensional diagram of the second embodiment of the present utility model.
[0026] Fig. 9 for Figure 8 A partial cross-sectional view of .
[0027] Description of labels:
[0028] First support frame 1 Second support frame 2
[0029] First end upright rod 11 First cross brace rod 12
[0030] The first upper storage net 121 and the first lower storage net 122
[0031] Second end upright rod 21 Second cross brace rod 22
[0032] The second upper storage net 221 and the second lower storage net 222
[0033] Middle pole 3 Sliding assembly 4
[0034] Sliding body 41 Buckling piece 42 Plug 43
[0035] Button hole 411 Button block 421 Hand-breaking part 422
[0036] Hollow portion 4211 Partition portion 4221
[0037] First link 5 Second link 6
[0038] Hook piece 7 Hanging column 8
[0039] Hook opening 71 Folding piece 72
[0040] Upper pivot plate 81 Lower pivot plate 82
[0041] Arc portion 811 Support block 812
[0042] Card contact surface 8111
[0043] Folding piece 821 Embedded hole 822
[0044] Handle plate 91 Push-pull part 92
[0045] Casters 93 Storage board 94
[0046] Pull hole 941
[0047] Anti-pinch finger baffle 95. DETAILED DESCRIPTION
[0048] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the drawings and specific implementation methods of the specification. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.
[0049] The terms used in the embodiments of the present invention are only for the purpose of describing specific embodiments, and are not intended to limit the present invention. The singular forms "a", "said" and "the" used in the embodiments of the present invention and the appended claims are also intended to include plural forms, unless the context clearly indicates other meanings, and "multiple" generally includes at least two.
[0050] It should also be noted that the term "includes", "comprising" or any other variation thereof is intended to cover non-exclusive inclusion, so that a commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprising a ..." do not exclude the existence of other identical elements in the commodity or device including the elements.
[0051] See also Figures 1 to 9 As shown, the utility model discloses a trolley, comprising: a first support frame 1 and a second support frame 2, wherein the ends adjacent to the first support frame 1 and the second support frame 2 are pivotally connected, and a middle vertical rod 3 is provided between the upper and lower parts of the pivotal connection between at least one of the ends adjacent to the first support frame 1 and the second support frame 2, and a sliding component 4 that can slide up and down is penetrated on the middle vertical rod 3, and a first linking member 5 is pivotally connected between one side of the sliding component 4 and the first support frame 1, and the sliding component 4 The other side of the second supporting frame 2 is pivotally connected with the second linking member 6, the sliding assembly 4 includes a sliding body 41 and a buckling member 42, the sliding body 41 is provided with a buckle hole 411, one side of the buckling member 42 is rotatably connected to the sliding body 41, and the buckling member 42 is convexly provided with a buckling block 421 on one side facing the sliding body 41, the buckling block 421 is selectively buckled into the buckle hole 411, and when the buckling block 421 is buckled into the buckle hole 411, the buckling block 421 is tightly clamped against the middle vertical rod 3 (such as Fig. 9As shown in the figure), the sliding body 41 cannot slide up and down. When the buckling block 421 is separated from the buckle hole 411, the sliding body 41 can slide up and down. Casters 93 are provided at the bottom of the first support frame 1 and the second support frame 2. In the embodiment, casters 93 are provided at intervals at the corners of the first support frame 1 away from the second support frame 2 and the corners of the second support frame 2 away from the first support frame 1; in the second embodiment, casters 93 are also provided at the bottom of the middle vertical pole 3.
[0052] Therefore, when the user needs to fold the trolley of the utility model, the user can fold it by bending the buckling block 421 of the buckling piece 42 to make the buckling block 421 disengage from the buckle hole 411 of the sliding body 41; when the user needs to unfold and use the trolley of the utility model, the buckling block 421 is in a state of being disengaged from the buckle hole 411 of the sliding body 41, and the sliding body 41 slides along the middle vertical rod 3 until the trolley is fully unfolded, and the buckling block 421 is buckled into the buckle hole 411. At this time, the buckling block 421 is tightly clamped against the middle vertical rod 3, and the sliding body 41 cannot slide along the middle vertical rod 3, thereby allowing the trolley to be stably unfolded and used.
[0053] See also Figures 1 to 4 In the embodiment 1 shown, the number of the middle upright pole 3 is one; please refer to Figures 8 to 9 In the second embodiment shown, there are two middle upright poles 3 , which are arranged at intervals and located on both sides of the first support frame 1 and the second support frame 2 .
[0054] In order to facilitate the user to separate the buckle block 421 from the buckle hole 411 of the sliding body 41, please refer to Figures 5 to 7 As shown, the buckling block 421 of the utility model is provided with a hand-breaking portion 422 along a side away from the connection between the buckling block 421 and the sliding body 41, and the hand-breaking portion 422 is provided on one side of the outer surface of the sliding body 41; further, the outer surface of the hand-breaking portion 422 can be provided with textures to facilitate the user to hold and break.
[0055] Preferably, a hollow portion 4211 is provided through the middle of the buckling block 421 , so that the user can press the buckling piece 42 with less effort, so that the buckling block 421 of the buckling piece 42 can be quickly buckled into the buckle hole 411 .
[0056] Among them, a partition portion 4221 is formed on the back side of the hand-bending portion 422, so that after the buckling block 421 is snapped into the buckle hole 411, the partition portion 4221 will abut against the outer surface of the sliding body 41, so that a gap is formed between the hand-bending portion 422 and the sliding body 41, so that the user can break away from the buckling block 421 from the buckle hole 411 by bending the hand-bending portion 422. In the embodiment, the partition portion 4221 is a rectangular block.
[0057] In the embodiment, the utility model realizes that one side of the buckling member 42 is rotatably connected to the sliding body 41 by inserting a bolt 43 between the buckling member 42 and the sliding body 41, but it is not limited to this. The buckling member 42 can also be connected to the sliding body 41 by other connection methods to achieve a rotatable connection.
[0058] For further information, see Figures 1 to 4 As shown, in order to prevent the trolley of the utility model from loosening after being folded, the end of the first support frame 1 away from the middle pole 3 and / or the end of the second support frame 2 away from the middle pole 3 can be pivotally connected to the hook member 7, and the middle pole 3 is provided with a hanging column 8 above the sliding component 4. When the trolley is folded, the hook mouth 71 of the hook member 7 is inserted into the hanging column 8, and there is a gap between the hanging column 8 and the sliding component 4; in the embodiment, the hook member 7 is pivotally connected only to the end of the second support frame 2 away from the middle pole 3, but it is not limited to this.
[0059] In addition, in order to prevent the hook member 7 from excessively rotating, a folding piece 72 is formed on the hook member 7, and the hook member 7 can be rotated downward until the folding piece 72 abuts against the first support frame 1 or the second support frame 2, so that the hook member 7 will be restricted by the first support frame 1 or the second support frame 2.
[0060] Furthermore, in order to facilitate folding, the upper ends adjacent to the first support frame 1 and the second support frame 2 are pivotally connected by fixing two upper pivot plates 81, and the upper pivot plates 81 are pivotally connected together, and the adjacent ends of the upper pivot plates 81 are formed with an arc portion 811 that bends from top to bottom away from each other.
[0061] Furthermore, in order to further improve the supporting strength of the first support frame 1 and the second support frame 2 and allow the present invention to be stably and smoothly unfolded for use, a locking surface 8111 is formed on the lower surface of the arc-shaped portion 811, and one of the pivot plates is protrudingly provided with a support block 812 on the side away from the locking surface 8111. When the trolley is unfolded for use, the locking surface 8111 of the other pivot plate is locked on the support block 812.
[0062] Furthermore, the adjacent lower ends of the first support frame 1 and the second support frame 2 can be pivotally connected by fixing two lower pivot plates 82, and an inwardly bent folding piece 821 is formed below the lower pivot plate 82, and the folding piece 821 is provided with an embedding hole 822 for an elastic gasket (not shown in the figure) to be embedded, so that after the utility model is folded, the elastic gasket is used to separate the first support frame 1 and the second support frame, so that there is a distance between the first support frame 1 and the second support frame 2, and no friction occurs between them, thereby preventing wear.
[0063] Further, in order to simplify the structure of the utility model, the first support frame 1 includes two first end uprights 11 arranged at intervals and two first cross braces 12 arranged at intervals up and down, the first cross braces 12 are fixedly arranged between the first end uprights 11, a first upper storage net 121 is arranged on the upper first cross brace 12, the first upper storage net 121 can be pivotally arranged between the first end uprights 11 and the middle uprights 3, and a first lower storage net 122 is arranged on the lower first cross brace 12, the first lower storage net 122 can be pivotally arranged between the first end uprights 11 and the middle uprights 3. The second support frame 2 comprises two second end uprights 21 spaced apart and two second cross braces 22 spaced apart up and down, the second cross braces 22 are fixedly arranged between the second end uprights 21, a second upper storage net 221 is arranged on the upper second cross brace 22, the second upper storage net 221 is pivotally arranged between the second end uprights 21 and the middle uprights 3, a second lower storage net 222 is arranged on the lower second cross brace 22, the second lower storage net 222 is pivotally arranged between the second end uprights 21 and the middle uprights 3.
[0064] In the first embodiment of the present invention, the first upper storage net 121, the first lower storage net 122, the second upper storage net 221 and the second lower storage net 222 are all fixed with a storage plate 94 to provide a flat support for the items to be placed.
[0065] Furthermore, the storage plate 94 located on the first upper storage net 121 and the storage plate 94 located on the second upper storage net 221 are both formed with a lifting hole 941 on one side adjacent to the middle vertical rod 3, so that when folding the utility model, the user can lift by holding the lifting hole 941 to speed up the folding speed of the utility model, wherein the lifting hole 941 can be an elliptical hole.
[0066] In addition, in order to prevent the user from being pinched when lifting by holding the lifting hole 941, the first support frame 1 and / or the second support frame 2 is provided with an anti-pinch baffle 95 on the side adjacent to the middle vertical pole 3, and the anti-pinch baffle 95 is located between the two lifting holes 941, and the anti-pinch baffle 95 extends vertically downward; in the first embodiment of the present new use, the anti-pinch baffle 95 is arranged on the lower surface of the first upper storage net 121 of the first support frame 1 on the side adjacent to the second support frame 2.
[0067] In the second embodiment of the present invention, in order to facilitate the user to fold the present invention, please refer to Figure 8 and Fig. 9 As shown, a hand-held plate 91 protruding outwards may be fixedly provided on the middle upright pole 3 .
[0068] Preferably, in order to facilitate the promotion of the present invention, a push-pull portion 92 bent toward the center pole is formed between the ends of the first support frame 1 and / or the second support frame 2 away from the middle pole 3. In the embodiment, the push-pull portion 92 bent toward the center pole is formed between the ends of the second support frame 2 away from the middle pole 3 as an example.
[0069] In addition, in order to facilitate the user to hold the push-pull portion 92 to push the utility model, the cross-section of the push-pull portion 92 is an inverted U-shape.
[0070] The above embodiments and drawings do not limit the product form and style of the present utility model. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present utility model.
Claims
1. A trolley, characterized in that: include: The cam is an assembly made of a plurality of independently controlled wheels, wherein the plurality of independently controlled wheels are connected to each other with a plurality of independently controlled wheels, wherein the plurality of independently controlled wheels are connected to each other with a plurality of independently controlled wheels.
2. A trolley as claimed in claim 1, characterized in that: The end of the first support frame away from the middle pole and / or the end of the second support frame away from the middle pole can be pivotally connected to a hook member, and the middle pole is provided with a hanging column above the sliding assembly. When the trolley is folded, the hook opening of the hook member is inserted into the hanging column, and there is a gap between the hanging column and the sliding assembly.
3. A trolley as claimed in claim 2, characterized in that: A folding piece is formed on the hook member, and the hook member can be rotated downward until the folding piece abuts against the first support frame or the second support frame.
4. A trolley according to any one of claims 1 to 3, characterized in that: The upper ends adjacent to the first support frame and the second support frame are pivotally connected by fixing two upper pivot plates, and the upper pivot plates are pivotally connected together, and the adjacent ends of the upper pivot plates form an arc portion that bends from top to bottom away from each other.
5. A trolley as claimed in claim 4, characterized in that: The lower surface of the arc-shaped portion is formed with a locking surface, and one of the pivoting plates is protrudingly provided with a supporting block on a side away from the locking surface. When the trolley is unfolded for use, the locking surface of the other pivoting plate is locked on the supporting block.
6. A trolley as claimed in claim 4, characterized in that: The adjacent lower ends of the first support frame and the second support frame are pivotally connected by fixing two lower pivot plates, and an inwardly bent folding plate is formed below the lower pivot plate, and the folding plate is provided with an embedding hole for the elastic gasket to be embedded.
7. A trolley according to any one of claims 1 to 3, characterized in that: A hand-held plate protruding outward is fixedly arranged on the middle vertical pole.
8. A trolley according to any one of claims 1 to 3, characterized in that: A push-pull portion bent away from the central upright pole is formed between the ends of the first support frame and / or the second support frame away from the central upright pole.
9. A trolley as claimed in claim 8, characterized in that: The cross section of the push-pull portion is in an inverted U shape.
10. A trolley according to any one of claims 1 to 3, characterized in that: The first supporting frame comprises two first end uprights arranged at intervals and two first cross braces arranged at intervals up and down, the first cross brace is fixedly arranged between the first end uprights, a first upper storage net is arranged on the first cross brace located above, the first upper storage net is pivotally arranged between the first end uprights and the middle uprights, a first lower storage net is arranged on the first cross brace located below, and the first lower storage net is pivotally arranged between the first end uprights and the middle uprights; the second supporting frame comprises two second end uprights arranged at intervals and two second cross braces arranged at intervals up and down, the second cross brace is fixedly arranged between the second end uprights, a second upper storage net is arranged on the second cross brace located above, the second upper storage net is pivotally arranged between the second end uprights and the middle uprights, a second lower storage net is arranged on the second cross brace located below, and the second lower storage net is pivotally arranged between the second end uprights and the middle uprights.