Wagon and rear push handle collapsing mechanism thereof

Abstract

The present application relates to the technical field of outdoor leisure wagons, and in particular to a wagon and a rear push handle collapsing mechanism thereof. The rear push handle collapsing mechanism 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 further provided with a bending section; and the other end of the horizontal tube is inserted into the bending section. The rear push handle collapsing mechanism uses the form in which the horizontal tube is inserted into the bending section, such that convenient mounting and dismounting are achieved, and the whole rear push handle is structurally stable and not prone to shake upon the completion of insertion of two tubes; and when collapsing, the horizontal tube is pulled out and folded to complete collapsing, thereby achieving simple and convenient operation and not affecting the collapsing of the whole wagon.

Description

Stroller and rear push handle folding structure thereof

[0001] Cross-reference to Related Applications

[0002] The present application claims priority to the Chinese patent application No. 202420764193.7 filed on April 12, 2024 and entitled "Stroller and rear push handle folding structure thereof", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the technical field of outdoor leisure strollers, and in particular relates to a stroller and a rear push handle folding structure thereof. BACKGROUND

[0004] With the continuous improvement of living standards, modern people's life and work pressures are also increasing. More and more people spend their weekends with their families and friends to carry out outdoor activities, relax their minds, and enjoy the sunshine, barbecues, and games. The folding stroller brings convenience to the transportation of outdoor equipment, making outdoor life more enjoyable.

[0005] Conventional folding strollers are generally provided with a front handle assembly, which pulls the stroller forward. Although some bundled strollers are also equipped with a rear push handle, the conventional bundled stroller rear push handle cannot be folded, or the rear push handle is unstable when opened, resulting in a large amount of rear push handle shaking and poor stroller turning stability.

[0006] SUMMARY

[0007] The embodiments of the present application provide a stroller and a rear push handle folding structure thereof, which is stable in structure, not easy to shake when opened, simple and convenient to operate when folded, and does not affect the overall folding of the stroller.

[0008] The embodiments of the present application can be implemented as follows:

[0009] The embodiments of the present application provide a rear push handle folding structure, which includes a horizontal pipe and two vertical pipes. One end of the horizontal pipe is hingedly connected to one of the vertical pipes. The other vertical pipe is further provided with a bent section. The other end of the horizontal pipe is inserted into the bent section.

[0010] Optionally, a locking mechanism is further provided at the connection between the horizontal pipe and the bent section.

[0011] Optionally, the locking mechanism includes a spring pin provided at the end of the horizontal pipe or the bent section, and a through hole provided at the end of the bent section or the horizontal pipe. After the two pipes are inserted or sleeved on each other, the spring pin is clamped in the through hole. The two pipes are further limited by the spring pin through hole during use to prevent the pipes from being separated, thereby improving the stability and safety of the entire rear push handle.

[0012] Optionally, the transverse pipe or the bending section is further provided with an outer sleeve pipe, and the outer sleeve pipe is provided with a button configured to push the elastic pin out of the through hole. The outer sleeve pipe is a plastic part, and the outer sleeve pipe has a guiding effect on the transverse pipe and the elastic pin, facilitating the insertion of the pipe and the entry of the elastic pin into the through hole, and the button on the outer sleeve pipe makes the operation more comfortable when the user pushes the handle after folding.

[0013] Optionally, the outer sleeve pipe is made of plastic.

[0014] Optionally, the transverse pipe and the vertical pipe are connected through a hinged sleeve pipe.

[0015] Optionally, the lower ends of the two vertical pipes are respectively hinged to the top connecting piece of the upper part of the stroller through a push handle hinge. The above structure makes the entire rear push handle not only foldable in the transverse direction of the stroller, but also foldable in the height direction of the stroller, further reducing the space occupied after folding and facilitating storage.

[0016] Optionally, the push handle hinge is rotationally arranged on the inner side of the top connecting piece, and an outer fixing piece is further rotationally arranged on the outer side of the top connecting piece, and the outer fixing piece is fixed to the outer side of the lower part of the vertical pipe. The above structure makes the connection strength of the rear push handle and the stroller as a whole higher, prolonging the service life.

[0017] Optionally, an angle limiting mechanism is further arranged between the push handle hinge and the top connecting piece. The above structure makes the operation angle of the rear push handle adjustable, facilitating the use of users of different heights.

[0018] Optionally, the bending section and the vertical pipe are integrally formed, and both are made of metal.

[0019] Optionally, the bending section and the vertical pipe are connected in a split type, and the vertical pipe is made of metal, and the bending section is made of plastic.

[0020] The embodiments of the present application also provide a stroller, which comprises a vertical rod, a side folding rod assembly, a front and rear folding rod assembly and a wheel assembly, a plurality of the vertical rods are connected into a frame structure through the side folding rod assembly and the front and rear folding rod assembly, and the wheel assembly is arranged at the lower part of the vertical rod, wherein the upper parts of the two vertical rods at the rear part are further provided with a rear push handle, and the rear push handle adopts the rear push handle folding structure described above.

[0021] Optionally, the lower rod of the side folding rod assembly and the front and rear folding rod assembly is connected with a sliding block slidingly arranged on the vertical rod.

[0022] Optionally, the bottom of the plurality of vertical rods is further provided with a bottom folding frame assembly.

[0023] Optionally, two of the vertical rods of the front part are further provided with a front handle assembly.

[0024] The beneficial effects of the embodiments of the present application include:

[0025] The rear push handle folding structure of the present application adopts the form of cross pipe and bending section insertion, and is convenient to install and disassemble, and the whole rear push handle structure is stable after the insertion of the two pipes, and is not easy to shake; when folding, the cross pipe is pulled out, and the folding of the cross pipe is completed, which is simple and convenient to operate, and does not affect the folding of the whole stroller.

[0026] The stroller of the present application includes the rear push handle folding structure, which has all the beneficial effects of the rear push handle folding structure. BRIEF DESCRIPTION OF DRAWINGS

[0027] The drawings accompanying the specification of the present application form a part thereof, serve to provide further understanding of the present application, and together with the specification explain the present application, and do not constitute a limitation of the present application.

[0028] Fig. 1 is a schematic structural view of the stroller of the present application after being opened as a whole;

[0029] Fig. 2 is a sectional view along the direction A-A in Fig. 1;

[0030] Fig. 3 is a schematic structural view of the rear push handle of the present application when the cross pipe is pulled out of the bending section;

[0031] Fig. 4 is a schematic structural view of the stroller of the present application after being folded as a whole.

[0032] The reference signs are as follows: 1, cross pipe; 2, hinged sleeve; 3, outer sleeve; 31, button; 41, vertical pipe; 42, bending section; 5, push handle hinge; 6, top connecting piece; 7, outer fixing piece; 8, vertical rod; 81, sliding block; 10, front and rear cross pipe assembly; 11, side cross pipe assembly; 12, bottom folding frame assembly; 13, wheel assembly; 14, front handle assembly; 15, locking mechanism; 151, spring pin; 152, through hole; 16, angle limiting mechanism. DETAILED DESCRIPTION

[0033] It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the present application. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs.

[0034] It is to be noted that the terms used herein are merely for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, the singular forms are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and / or "comprising," when used in this specification, specify the presence of stated features, steps, operations, elements, components, and / or groups thereof, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and / or groups thereof.

[0035] In addition, in the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only used for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second", "third", etc. are used only for descriptive purposes and should not be construed as indicating or implying relative importance or an indicated number of technical features. Therefore, the features defined as "first", "second", etc. can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise stated, the meaning of "a plurality of" is two or more, unless otherwise explicitly limited.

[0037] In the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In the present application, unless otherwise explicitly specified and limited, the first feature "above" or "below" the second feature can include the first and second features in direct contact, or the first and second features not in direct contact but in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the first feature is higher in horizontal height than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the first feature is lower in horizontal height than the second feature.

[0039] The push cart and the rear push handle folding structure provided by the embodiment of the application will be described below with reference to the accompanying drawings:

[0040] Please refer to FIG. 1, FIG. 3 and FIG. 4, it is necessary to point out that the B1-B2 direction shown in the figure is the up-down direction, the C1-C2 direction is the left-right direction, and the D1-D2 direction is the front-rear direction.

[0041] As shown in FIG. 1 and FIG. 3, the embodiment of the application provides a push cart, which comprises a vertical rod 8, a side folding rod assembly 11, a front-rear folding rod assembly 10 and a wheel assembly 13. The vertical rods 8 are connected into a frame structure through the side folding rod assembly 11 and the front-rear folding rod assembly 10. The wheel assembly 13 is arranged at the lower part of the vertical rod 8 (i.e. below the vertical rod 8). The bottom of the vertical rod 8 (i.e. below the vertical rod 8) is further provided with a bottom folding frame assembly 12. Two vertical rods 8 at the front (i.e. in front of the vertical rod 8) are further provided with a front handle assembly 14. The upper part of two vertical rods 8 at the rear (i.e. behind the vertical rod 8) is further provided with a rear push handle. The rear push handle comprises a horizontal pipe 1 and two vertical pipes 41. One end of the horizontal pipe 1 is hinged to one of the vertical pipes 41. The other vertical pipe 41 is further provided with a bending section 42. The other end of the horizontal pipe 1 is inserted into the bending section 42. The bending section 42 can be a metal piece integrally formed with the vertical pipe 41, or a separate plastic bending connecting piece. That is, the bending section 42 and the vertical pipe 41 can be integrally formed and both are metal. Or the bending section 42 and the vertical pipe 41 are separately connected, and the vertical pipe 41 is metal, while the bending section 42 is plastic. Please refer to FIG. 2, which is a sectional view of the A-A direction in FIG. 1. As shown in FIG. 2, the connection between the horizontal pipe 1 and the bending section 42 is further provided with a locking mechanism 15. The locking mechanism 15 comprises a spring pin 151 arranged at the end of the horizontal pipe 1 or the bending section 42, and a through hole 152 arranged at the end of the bending section 42 or the horizontal pipe 1. After the horizontal pipe 1 is inserted into or sleeved on the bending section 42, the spring pin 151 is clamped in the through hole 152. After the two pipe pieces are inserted (i.e. the horizontal pipe is inserted into the bending section 42), they are further limited by the cooperation of the spring pin 151 and the through hole 152, so as to prevent the pipe pieces from being separated during use, thereby improving the stability and safety of the entire rear push handle.

[0042] Please refer to FIG. 1-FIG. 3, it is necessary to point out that in this embodiment, the spring pin 151 is arranged at the end of the horizontal pipe 1, and the end of the bending section 42 is provided with the through hole 152. Of course, in other embodiments, the spring pin 151 can also be arranged at the end of the bending section 42, and the end of the horizontal pipe 1 is provided with the through hole 152.

[0043] Optionally, the transverse pipe 1 or the bent section 42 is further provided with an outer sleeve 3, and the outer sleeve 3 is provided with a button 31 configured to push the elastic pin 151 out of the through hole 152. The outer sleeve 3 is a plastic part, i.e., the outer sleeve 3 is made of plastic material, and the outer sleeve 3 has a guiding effect on the transverse pipe 1 and the elastic pin 151, facilitating the pipe joint and the elastic pin 151 entering the through hole 152, and the button 31 on the outer sleeve 3 makes the user feel more comfortable when operating the handle after folding.

[0044] When the rear handle of the stroller is unfolded, the elastic pin 151 is directly inserted into the bent section 42 through the guiding effect of the outer sleeve 3, so that the entire rear handle is stable and does not shake. When the rear handle of the stroller is folded, press the button 31 on the outer sleeve 3, the button 31 can push the elastic pin 151 out of the through hole 152, then pull out the transverse pipe 1, then fold the transverse pipe 1, and close the transverse pipe 1 to the vertical pipe 41 to complete the folding. The entire folding process is simple and convenient to operate.

[0045] It should be noted that in the present embodiment, the outer sleeve 3 is sleeved on the bent section 42; of course, in other embodiments, the outer sleeve 3 can also be sleeved on the transverse pipe 1.

[0046] Optionally, the transverse pipe 1 and the vertical pipe 41 are connected through a hinge sleeve 2. The middle part of the hinge sleeve 2 is a hinge point, and the two ends rotate around the hinge point. The transverse pipe 1 and the vertical pipe 41 are respectively inserted into the two ends of the hinge sleeve 2 and fixed by bolts.

[0047] Optionally, the lower ends of the two vertical pipes 41 (i.e., the lower parts of the vertical pipes 41) are respectively hinged to the top connecting piece 6 of the upper part of the stroller (i.e., the upper part of the stroller) through the handle hinge piece 5. The top connecting piece 6 is fixed to the top of the vertical rod 8 (i.e., the end part above the vertical rod 8), and the top connecting piece 6 is connected to the upper rod of the side folding rod assembly 11 and the front and rear folding rod assembly 10 in addition to being connected to the handle hinge piece 5. The lower rod of the side folding rod assembly 11 and the front and rear folding rod assembly 10 is connected to the sliding block 81 slidingly arranged on the vertical rod 8. The above structure makes the entire rear handle not only foldable in the transverse direction of the stroller (D1-D2 direction, i.e., left and right direction), but also foldable in the height direction of the stroller (B1-B2 direction, i.e., up and down direction), further reducing the space occupied after folding and facilitating storage.

[0048] Optionally, the push handle hinge 5 is rotatably arranged on the inner side of the top connecting piece 6, and an outer fixing plate 7 is further rotatably arranged on the outer side of the top connecting piece 6, and the outer fixing plate 7 is fixed to the outer side of the lower part of the vertical pipe 41. In this way, the vertical pipe 41 is hingedly connected to the inner and outer sides of the top connecting piece 6, the overall connection strength is higher, and the service life is prolonged. At the same time, the angle limiting mechanism 16 is further arranged between the push handle hinge 5 and the top connecting piece 6. By arranging the angle limiting mechanism 16, the operation angle of the rear push handle can be adjusted, and users of different heights can use it conveniently.

[0049] Please refer to FIGS. 1-4, according to the above description, the opening and folding process of the stroller provided by the embodiment of the present application is as follows:

[0050] When the rear push handle is opened, the horizontal pipe 1 is inserted into the bending section 42 and is limited by the elastic pin 151 to ensure the stability of the stroller. When the rear push handle is folded, the elastic pin 151 is unlocked by pressing the button 31, then the horizontal pipe 1 is pulled out of the bending section 42 and is folded towards the vertical pipe 41, and then the bottom folding frame assembly 12 is pulled to fold, and finally the stroller is folded into a bundle (as shown in FIG. 4).

[0051] In the description of the present specification, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present specification, the illustrative description of the above terms does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0052] Although the embodiments of the present application have been shown and described above, it should be understood that the above embodiments are exemplary and cannot be understood as limiting the present application. Those skilled in the art can make changes, modifications, replacements and variations to the above embodiments without departing from the principles and purposes of the present application within the scope of the present application. Any simple modification, equivalent change and modification made according to the technical essence of the present application to the above embodiments still belongs to the scope of the technical solution of the present application. Industrial applicability

[0053] In summary, the embodiment of the present application provides a stroller and a rear push handle folding structure thereof, which is convenient to install and disassemble, stable in structure, not easy to shake when opened, easy to operate when folded, and does not affect the overall folding of the stroller.

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) is hinged to one of the vertical tubes (41), the other vertical tube (41) is further provided with a bending section (42), and the other end of the transverse tube (1) is plugged into the bending section (42).

2. The rear push handle folding structure according to claim 1, characterized in that: A locking mechanism (15) is also provided at the connection between the transverse tube (1) and the bending section (42).

3. The rear push handle folding structure according to claim 2, characterized in that: The locking mechanism (15) comprises a spring pin (151) arranged at the end of the transverse tube (1) or the bending section (42), and a through hole (152) 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 (151) is locked in the through hole (152).

4. The rear push handle folding structure according to claim 3, characterized in that: An outer sleeve (3) is further provided outside the transverse tube (1) or the bending section (42), and a button (31) configured to push the elastic pin (151) out of the through hole (152) is provided on the outer sleeve (3).

5. The rear push handle folding structure according to claim 4, characterized in that: The outer sleeve (3) is made of plastic.

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

7. The rear push handle folding structure according to any one of claims 1 to 6, 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).

8. The rear push handle folding structure according to claim 7, 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). The outer fixing plate (7) is fixed to the outer side of the lower part of the vertical pipe (41).

9. The rear push handle folding structure according to claim 7 or 8, characterized in that: An angle limiting mechanism (16) is also provided between the push handle hinge (5) and the top connecting member (6).

10. The rear push handle folding structure according to any one of claims 1 to 9, characterized in that: The bending section (42) and the vertical pipe (41) are integrally formed, and both are made of metal.

11. The rear push handle folding structure according to any one of claims 1 to 9, characterized in that: The bending section (42) and the vertical pipe (41) are connected in a split manner, the vertical pipe (41) is made of metal, and the bending section (42) is made of plastic.

12. 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 the 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 lower part of the vertical pole (8), characterized in that: A rear push handle is further provided on the upper portion of the two upright poles (8) at the rear portion, and the rear push handle adopts the rear push handle folding structure according to any one of claims 1 to 11.

13. The cart according to claim 12, characterized in that: The lower rods of the side folding rod assembly (11) and the front and rear folding rod assembly (10) are connected to a slider (81) slidably arranged on the vertical rod (8).

14. A cart according to claim 12 or 13, characterized in that: A bottom folding frame assembly (12) is also provided at the bottom of the plurality of vertical poles (8).

15. The cart according to claim 14, characterized in that: The two front upright poles (8) are also provided with a front handle assembly (14).

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