Cart and rear push handle folding structure thereof

Abstract

The utility model relates to a cart and a rear push handle folding structure thereof, the rear push handle folding structure comprises a horizontal pipe and two vertical pipes, one end of the horizontal pipe is hinged with one vertical pipe, the other vertical pipe is provided with a bending section, and the other end of the horizontal pipe is connected with the bending section in an inserted mode. According to the rear push handle folding structure, the mode that the transverse pipe and the bent section are connected in an inserted mode is adopted, mounting and dismounting are convenient, and after the two pipe fittings are connected in an inserted mode, the whole rear push handle is stable in structure and not prone to shaking; during folding, the transverse pipes are pulled open and folded to complete folding, operation is easy and convenient, and folding of the whole stroller is not affected.

Description

Technical Field

[0001] The utility model belongs to the technical field of outdoor leisure carts, in particular to a cart and a folding structure of a rear handle thereof. Background Art

[0002] As modern people's living standards continue to improve, their life and work pressures are also increasing. More and more people are doing outdoor activities with their families and friends on weekends to relax and enjoy the sunny weather and barbecue games. The folding cart brings convenience to the transportation of outdoor tools and materials, making outdoor life more enjoyable.

[0003] Conventional folding carts are generally provided with a front handle assembly, and the cart is pulled forward by the handle. Although some bundle carts are also equipped with a rear handle, the rear handle of the conventional bundle cart cannot be folded, or the rear handle is unstable when opened, resulting in a large amount of shaking of the entire rear handle, which in turn causes the cart to turn poorly; therefore, it is urgent to design a cart rear handle that can be folded and remain stable after opening. Utility Model Content

[0004] In order to solve the above technical problems, the first purpose of the utility model is to provide a rear push handle folding structure that is easy to operate and has a stable structure. The second purpose of the utility model is to provide a cart using the above rear push handle folding structure.

[0005] In order to achieve the above first utility model purpose, the utility model adopts the following technical solutions:

[0006] The push handle folding structure comprises a horizontal tube and two vertical tubes, one end of the horizontal tube is hinged to one of the vertical tubes, the other vertical tube is also provided with a bending section, and the other end of the horizontal tube is plugged into the bending section.

[0007] As a preferred solution: a locking mechanism is also provided at the connection between the transverse tube and the bending section.

[0008] As a preferred solution: the locking mechanism includes an elastic pin arranged at the end of the transverse tube or the bending section, and a through hole correspondingly arranged at the bending section or the end of the transverse tube. After the transverse tube is inserted or sleeved on the bending section, the elastic pin is clamped in the through hole. After the two pipes are plugged in, they are further limited by the cooperation of the elastic pin through hole to prevent the pipes from being disengaged during use, thereby improving the stability and safety of the entire rear push handle.

[0009] As a preferred solution: an outer sleeve is provided outside the transverse tube or the bending section, and a button for pushing the elastic pin out of the through hole is provided on the outer sleeve. The outer sleeve is a plastic part, and the outer sleeve has a guiding effect on the transverse tube and the elastic pin, facilitating the insertion of the pipe fittings and the entry of the elastic pin into the through hole. At the same time, the button on the outer sleeve makes the user feel more comfortable when pushing the handle after folding.

[0010] As a preferred solution: the horizontal pipe and the vertical pipe are connected via a hinged sleeve.

[0011] As a preferred solution: the lower ends of the two vertical tubes are respectively hinged to the top connecting piece on the upper part of the cart through the handle hinge. The above structure allows the entire rear handle to be folded not only in the horizontal direction of the cart but also in the height direction of the cart, further reducing the space occupied after folding and facilitating storage.

[0012] As a preferred solution: the push handle hinge is rotatably arranged on the inner side of the top connecting piece, and an outer fixing plate is rotatably arranged on the outer side of the top connecting piece, and the outer fixing plate is fixed to the outer side of the lower part of the vertical tube. The above structure makes the connection strength between the rear push handle and the cart as a whole higher and prolongs the service life.

[0013] As a preferred solution: an angle limiting mechanism is further provided between the push handle hinge and the top connecting member. The above structure makes the operating angle of the rear push handle adjustable, which is convenient for users of different heights to use.

[0014] In order to achieve the above second utility model purpose, the utility model adopts the following technical solutions:

[0015] A cart comprises uprights, side folding rod assemblies, front and rear folding rod assemblies and wheel assemblies. A plurality of uprights are connected to form a frame structure via the side folding rod assemblies and the front and rear folding rod assemblies. The wheel assemblies are arranged at the lower parts of the uprights. A rear push handle is further arranged at the upper parts of the two rear uprights. The rear push handle adopts any one of the rear push handle folding structures described above.

[0016] As a preferred solution: a bottom folding frame assembly is further provided at the bottom of the plurality of vertical poles, wherein a front handle assembly is further provided on the two vertical poles at the front.

[0017] The folding structure of the rear push handle of the utility model adopts the form of plug-in connection of the horizontal pipe and the bent section, which is convenient to install and disassemble, and after the two pipes are plugged in, the entire rear push handle structure is stable and not easy to shake; when folding, the horizontal pipe is pulled out and folded to complete the folding, which is simple and convenient to operate and does not affect the overall folding of the cart. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The drawings in the specification, which constitute a part of the present application, are used to provide a further understanding of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute a limitation on the present application.

[0019] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0020] Figure 2 yes Figure 1 AA section view;

[0021] Figure 3 It is a schematic diagram of the structure when the horizontal tube of the rear push handle of the utility model is pulled out from the bending section;

[0022] Figure 4 It is a schematic structural diagram of the pushcart of the utility model after being folded as a whole.

[0023] The accompanying drawings are marked as follows: 1. horizontal tube; 111. spring pin; 2. hinged sleeve; 3. outer sleeve; 31. button; 41. vertical tube; 42. bending section; 5. push handle hinge; 6. top connecting piece; 7. external fixing plate; 8. vertical pole; 10. front and rear cross tube assembly; 11. side cross tube assembly; 12. bottom folding frame assembly; 13. wheel assembly; 14. front handle assembly. DETAILED DESCRIPTION

[0024] It should be noted that the following detailed descriptions are illustrative and are intended to provide further explanation of the present application. Unless otherwise specified, all technical and scientific terms used herein have the same meanings as those commonly understood by those skilled in the art to which the present application belongs.

[0025] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0026] In addition, in the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more, unless otherwise clearly defined.

[0028] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0029] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0030] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0031] like Figure 1 and Figure 3 A cart shown in the figure comprises a vertical pole 8, a side folding rod assembly 11, a front and rear folding rod assembly 10 and a wheel assembly 13. A plurality of vertical poles 8 are connected to form a frame structure through the side folding rod assembly 11 and the front and rear folding rod assembly 10. The wheel assembly 13 is arranged at the lower part of the vertical pole 8. A bottom folding frame assembly 12 is also arranged at the bottom of the plurality of vertical poles 8. A front handle assembly 14 is also arranged on the two vertical poles 8 at the front. A rear push handle is also arranged on the upper part of the two vertical poles 8 at the rear. The rear push handle comprises a horizontal tube 1 and two vertical tubes 41. One end of the horizontal tube 1 is hinged to one of the vertical tubes 41. The other vertical tube 41 is also provided with a bending section 42. The other end of the horizontal tube 1 is plugged into the bending section 42. The bending section can be a metal part integrally formed with the vertical tube, or can be an independent bending connector made of plastic material.

[0032] like Figure 2 As shown, a locking mechanism is also provided at the connection between the transverse tube 1 and the bending section 42. The locking mechanism includes an elastic pin 111 provided at the end of the transverse tube 1 or the bending section 42, and a through hole provided at the end of the bending section 42 or the transverse tube 1. After the transverse tube 1 is inserted or sleeved on the bending section 42, the elastic pin 111 is clamped in the through hole. After the two pipes are plugged in, the elastic pin through hole is further limited to prevent the pipes from being disengaged during use, thereby improving the stability and safety of the entire push handle.

[0033] An outer sleeve 3 is also provided outside the transverse tube 1 or the bending section 42, and a button 31 for pushing the elastic pin 11 out of the through hole is provided on the outer sleeve 3. The outer sleeve is a plastic part, and the outer sleeve has a guiding effect on the transverse tube and the elastic pin, which facilitates the insertion of the pipe fittings and the entry of the elastic pin into the through hole. At the same time, the button on the outer sleeve makes the user feel more comfortable when pushing the handle after folding.

[0034] When the rear push handle of the cart is opened, the spring pin is guided by the outer sleeve and directly inserted into the bending section, and the entire rear push handle is stable and does not shake. When folding, press the button on the outer sleeve, the spring pin is pushed out of the through hole, the horizontal tube is pulled out, and the horizontal tube is folded to bring the horizontal tube and the vertical tube together to complete the folding. The whole operation is simple and convenient.

[0035] The horizontal pipe 1 and the vertical pipe 41 are connected by a hinged sleeve 2. The middle of the hinged sleeve 2 is a hinge point, and both ends rotate around the hinge point. The horizontal pipe 1 and the vertical pipe 41 are respectively inserted at both ends of the hinged sleeve 2 and fixed by bolts.

[0036] The lower ends of the two vertical tubes 41 are respectively hinged to the top connecting member 6 on the upper part of the cart through the handle hinge 5. The top connecting member 6 is fixed to the top of the vertical pole. In addition to being connected to the handle hinge 5, the top connecting member 6 is also connected to the upper rods of the side folding rod assembly 11 and the front and rear folding rod assembly 10. The lower rods of the side folding rod assembly 11 and the front and rear folding rod assembly 10 are connected to the slider slidably arranged on the vertical pole. The above structure allows the entire rear handle to be folded not only in the lateral direction of the cart, but also in the height direction of the cart, further reducing the space occupied after folding, and facilitating storage.

[0037] The push handle hinge 5 is rotatably arranged on the inner side of the top connection 6, and an outer fixing plate 7 is rotatably arranged on the outer side of the top connection 6, and the outer fixing plate 7 is fixed to the outer side of the lower part of the vertical tube 41. In this way, the vertical tube 41 is hinged to the inner and outer sides of the top connection 6, and the overall connection strength is higher, which prolongs the service life. At the same time, an angle limiting mechanism is also provided between the push handle hinge 5 and the top connection 6. The above structure makes the operating angle of the rear push handle adjustable, which is convenient for users of different heights.

[0038] When the rear push handle of the cart of the utility model is opened, the horizontal tube is inserted into the bending section and limited by the elastic pin to ensure the stability of the cart; when folding, the elastic pin is unlocked by pressing a button, the horizontal tube is pulled out of the bending section, and folded toward the vertical tube, and then the bottom folding frame assembly 12 is pulled to fold, and finally the cart is folded into a bundle (such as Figure 4 as shown).

[0039] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0040] Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present invention. Ordinary technicians in the field can change, modify, replace and modify the above embodiments within the scope of the present invention without departing from the principles and purpose of the present invention. Any simple modifications, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are still within the scope of the technical solution of the present invention.

Claims

1. The push-back handle folding structure is characterized by: It comprises a transverse tube (1) and two vertical tubes (41), one end of the transverse tube (1) being hinged to one of the vertical tubes (41), the other vertical tube (41) being further provided with a bending section (42), and the other end of the transverse tube (1) being plugged into the bending section (42).

2. The rear push handle folding structure according to claim 1, characterized in that: A locking mechanism is also provided at the connection between the transverse tube (1) and the bent section (42).

3. The rear push handle folding structure according to claim 2, characterized in that: The locking mechanism comprises a spring pin (111) arranged at the end of the transverse tube (1) or the bending section (42), and a through hole correspondingly arranged at the end of the bending section (42) or the transverse tube (1); after the transverse tube (1) is inserted into or sleeved on the bending section (42), the spring pin (111) is locked in the through hole.

4. The rear push handle folding structure according to claim 3, characterized in that: An outer sleeve (3) is also provided outside the transverse tube (1) or the bent section (42), and a button (31) for pushing the elastic pin (111) out of the through hole is provided on the outer sleeve (3).

5. The rear push handle folding structure according to claim 1, characterized in that: The horizontal pipe (1) and the vertical pipe (41) are connected via a hinged sleeve (2).

6. The rear push handle folding structure according to claim 1, characterized in that: The lower ends of the two vertical pipes (41) are respectively hinged to the top connecting piece (6) on the upper part of the cart through the handle hinge (5).

7. The rear push handle folding structure according to claim 6, characterized in that: The push handle hinge (5) is rotatably arranged on the inner side of the top connecting member (6), and an outer fixing plate (7) is also rotatably arranged on the outer side of the top connecting member (6), and the outer fixing plate (7) is fixed to the outer side of the lower part of the vertical pipe (41).

8. The rear push handle folding structure according to claim 6, characterized in that: An angle limiting mechanism is also provided between the push handle hinge (5) and the top connecting piece (6).

9. A cart, comprising a vertical pole (8), a side folding pole assembly (11), a front and rear folding pole assembly (10) and a wheel assembly (13), wherein a plurality of vertical poles (8) are connected to form a frame structure through the side folding pole assembly (11) and the front and rear folding pole assembly (10), and the wheel assembly (13) is arranged at the bottom of the vertical pole (8), characterized in that: A rear push handle is further provided on the upper part of the two rear upright poles (8), and the rear push handle adopts the rear push handle folding structure according to any one of claims 1 to 8.

10. A cart according to claim 9, characterized in that: A bottom folding frame assembly (12) is also provided at the bottom of the plurality of vertical poles (8), and a front handle assembly (14) is also provided on the two vertical poles (8) at the front.

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