Novel folding trolley

Abstract

The novel folding trolley comprises a front frame, a rear frame and a side frame, the front frame and the rear frame are arranged front and back, the side frame is arranged between the front frame and the rear frame and used for unfolding and folding, the side frame comprises a front top rod, a front bottom rod, a rear top rod, a rear bottom rod, a front inclined rod and a rear inclined rod, and the rear end of the front inclined rod and the front end of the rear inclined rod are hinged between the front top rod and the rear top rod respectively. The front inclined rods and the rear inclined rods are arranged, the supporting strength between the top rods and the bottom rods is improved, the inclined rods and the bottom rods are connected in a sliding mode, the stability of folding deformation is improved, and the folding deformation effect is improved. The overall structural strength and folding stability of the side frame are improved, and the use requirements of a user can be met to the maximum extent.

Description

Technical Field

[0001] The utility model relates to the technical field of carts, in particular to a novel foldable cart. Background Art

[0002] Folding trolleys are popular among consumers because of their foldable, easy to carry and store features. However, the foldable structural design inevitably leads to a structural strength that is inferior to that of a rigidly connected trolley. For example, patent (CN216374594U) discloses a folding trolley, comprising a bottom bracket, at least two sets of side brackets and a plurality of support rods, wherein the plurality of support rods are vertically arranged and located at the edges of the folding trolley, and the bottom bracket is movably connected to the support rods. The side brackets of the folding trolley have poor structural strength and stability. It is of great significance to improve the structural strength and load-bearing capacity of the folding trailer to maximize the consumer's usage needs. Utility Model Content

[0003] The utility model aims to solve the technical problems of poor structural strength and stability of existing foldable strollers. The utility model provides a novel foldable stroller with a front diagonal rod and a rear diagonal rod, which increases the supporting strength between the top rod and the bottom rod, and the diagonal rod and the bottom rod are slidably connected to improve the stability of folding deformation, improve the overall structural strength and folding stability of the side frame, and can maximize the protection of the user's usage needs.

[0004] This application adopts the following technical solutions:

[0005] A novel folding cart comprises a front frame and a rear frame arranged front and rear, and a side frame arranged between the front and rear frames for unfolding and folding, wherein the side frame comprises at least a front top bar, a front bottom bar, a rear top bar, a rear bottom bar, a front diagonal bar, and a rear diagonal bar;

[0006] The front ends of the front top rod and the front bottom rod are pivotally connected to the upper side and the lower side of the front frame respectively, the rear ends of the rear top rod and the rear bottom rod are pivotally connected to the upper side and the lower side of the rear frame respectively, the rear end of the front top rod is pivotally connected to the front end of the rear top rod, and the rear end of the front bottom rod is pivotally connected to the front end of the rear bottom rod;

[0007] The rear end of the front oblique rod and the front end of the rear oblique rod are respectively hinged between the front top rod and the rear top rod, the front end of the front oblique rod is slidably connected to the front bottom rod, and the rear end of the rear oblique rod is slidably connected to the rear bottom rod.

[0008] Implementing the embodiments of the utility model has the following beneficial effects:

[0009] The present application provides a novel foldable stroller, comprising a front frame and a rear frame arranged front and rear, and a side frame arranged therebetween for unfolding and folding, wherein the side frame comprises a front top bar, a front bottom bar, a rear top bar, a rear bottom bar, a front diagonal bar, and a rear diagonal bar, the rear end of the front diagonal bar and the front end of the rear diagonal bar being respectively hinged between the front top bar and the rear top bar, the front end of the front diagonal bar being slidably connected to the front bottom bar, and the rear end of the rear diagonal bar being slidably connected to the rear bottom bar. The present application is provided with a front diagonal bar and a rear diagonal bar, which increases the supporting strength between the top bar and the bottom bar, and the diagonal bar and the bottom bar are slidably connected, thereby improving the stability of folding deformation. The present application improves the overall structural strength and folding stability of the side frame, and can guarantee the user's usage needs to the greatest extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0011] Figure 1 This is a structural schematic diagram of a novel folding trolley in an unfolded state according to an embodiment of the present application;

[0012] Figure 2 This is a schematic structural diagram of a novel foldable trolley in a folded state according to an embodiment of the present application;

[0013] Figure 3 This is a structural schematic diagram of another embodiment of the present application, a novel folding trolley in an unfolded state with only a front diagonal rod;

[0014] Figure 4 This is a structural schematic diagram of a novel folding trolley in another embodiment of the present application in an unfolded state with only a rear diagonal rod; DETAILED DESCRIPTION

[0015] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0016] like Figure 1-4As shown, a novel folding cart comprises a front frame 1 and a rear frame 2 arranged front and rear, and a side frame 3 arranged between the two for unfolding and folding, characterized in that: the side frame 3 comprises at least a front top rod 31, a front bottom rod 32, a rear top rod 33, a rear bottom rod 34, a front oblique rod 35, and a rear oblique rod 36; the front ends of the front top rod 31 and the front bottom rod 32 are respectively pivotally connected to the upper side and the lower side of the front frame 1, and the rear ends of the rear top rod 33 and the rear bottom rod 34 are respectively pivotally connected to the upper side and the lower side of the front frame 1 The rear frame 2 is pivotally connected to the upper and lower sides of the rear frame 2, the rear end of the front push rod 31 is pivotally connected to the front end of the rear push rod 33, and the rear end of the front bottom rod 32 is pivotally connected to the front end of the rear bottom rod 34; the rear end of the front oblique rod 35 and the front end of the rear oblique rod 36 are respectively hinged between the front push rod 31 and the rear push rod 33, the front end of the front oblique rod 35 is slidably connected to the front bottom rod 32, and the rear end of the rear oblique rod 36 is slidably connected to the rear bottom rod 34, as shown in FIG. Figure 3 As shown in or 4, the present application can selectively set a front diagonal rod and a rear diagonal rod, which can increase the support strength between the top rod and the bottom rod. Of course, it can also be as Figure 1 As shown, the front diagonal rod and the rear diagonal rod are provided at the same time to further improve the supporting strength between the top rod and the bottom rod, and the diagonal rod and the bottom rod are slidably connected to improve the stability of folding deformation. The present application improves the overall structural strength and folding stability of the side frame, and can guarantee the user's usage needs to the greatest extent.

[0017] Furthermore, it also includes an upper hinge seat 37 arranged between the front push rod 31 and the rear push rod 33 and hinged to the two respectively. More specifically, the front end of the upper hinge seat 37 is hinged to the rear end of the front push rod 31, and the rear end of the upper hinge seat 37 is hinged to the front end of the rear push rod 33. The present application realizes the hinge between the front push rod 31 and the rear push rod 33 through the upper hinge seat 37, which is convenient for folding. Further preferably, the cross-section of the upper hinge seat 37 is an inverted N shape, and its front and rear sides are respectively covered with the ends of the front push rod 31 and the rear push rod 33, so that the hinge is more stable and can remain horizontal when unfolded, thereby improving the overall structural strength.

[0018] Furthermore, the rear end of the front diagonal rod 35 and the front end of the rear diagonal rod 36 are hinged on the upper hinge seat 37. More specifically, the rear end of the front diagonal rod 35 and the front end of the rear diagonal rod 36 are hinged to the middle part of the upper hinge seat 37 in sequence. The rear end of the front diagonal rod 35 and the front end of the rear diagonal rod 36 of the present application are located between the front top rod 31 and the rear top rod 33, which is convenient for folding and can support the top rod and the bottom rod when unfolded, thereby improving the overall structural strength of the new folding cart.

[0019] Furthermore, if Figure 2As shown, when the new folding cart is folded from the unfolded state to the folded state, the rear end of the front diagonal rod 35 and the front end of the rear diagonal rod 36 rotate around the hinge to the end away from the hinge and gradually approach downward, which is convenient for folding, improves the overall structural strength and folding stability of the side frame, and can maximize the user's usage needs.

[0020] Furthermore, when the novel folding trolley is in an unfolded state, the front push rod 31, the rear push rod 33 and the upper hinge seat 37 are all arranged horizontally. When the novel folding trolley is folded from the unfolded state to the folded state, the front push rod 31 and the rear push rod 33 are arranged vertically, and the upper hinge seat 37 remains arranged horizontally. This design can improve the folding stability.

[0021] Furthermore, the front end of the front diagonal rod 35 is hinged with a front sliding seat 351, and the front sliding seat 351 is mounted on the front bottom rod 32 and can slide along it. By setting the front sliding seat 351, the front diagonal rod 35 can slide along the length direction of the front bottom rod 32, thereby improving the stability of folding deformation.

[0022] Furthermore, a front anti-slip portion 321 is provided on the front bottom rod 32 in front of the front sliding seat 351. When the new folding cart is in a fully unfolded state, the front sliding seat 351 abuts against the front anti-slip portion 321 to limit its sliding. This design enables the front top rod 31, the rear top rod 33 and the upper hinge seat 37 to be arranged horizontally, thereby improving the supporting strength between the top rod and the bottom rod, and improving the overall structural strength and folding stability of the side frame.

[0023] Furthermore, the rear end of the rear diagonal rod 36 is hinged with a rear sliding seat 361, and the rear sliding seat 361 is mounted on the rear bottom rod 34 and can slide along it. By setting the rear sliding seat 361, the rear diagonal rod 36 can slide along the length direction of the rear bottom rod 34, thereby improving the stability of folding deformation.

[0024] Furthermore, a rear anti-slip portion 341 is provided on the rear bottom rod 34 at the rear side of the rear sliding seat 361. When the new folding cart is in a fully unfolded state, the rear sliding seat 361 abuts against the rear anti-slip portion 341 to limit its sliding. This design enables the front top rod 31, the rear top rod 33 and the upper hinge seat 37 to be arranged horizontally, thereby improving the supporting strength between the top rod and the bottom rod, and improving the overall structural strength and folding stability of the side frame.

[0025] Furthermore, it also includes a lower hinge seat 38 provided between the front bottom bar 32 and the rear bottom bar 34 and hinged to the two respectively. The present application realizes the hinge between the front bottom bar 32 and the rear bottom bar 34 through the lower hinge seat 38, which is convenient for folding. Further preferably, the cross-section of the lower hinge seat 38 is an inverted N-shape, and its front and rear sides are respectively covered with the ends of the front bottom bar 32 and the rear bottom bar 34, so that the hinge is more stable and can remain horizontal when unfolded, thereby improving the overall structural strength.

[0026] Furthermore, when the novel folding cart is in an unfolded state, the front bottom bar 32, the rear bottom bar 34 and the lower articulated seat 38 are all arranged horizontally. When the novel folding cart is folded from the unfolded state to the folded state, the front bottom bar 32 and the rear bottom bar 34 are arranged vertically, and the lower articulated seat 38 remains arranged horizontally. This design can improve the folding stability.

[0027] The above is a preferred embodiment of the present invention. It should be pointed out that a person skilled in the art can make several improvements and modifications without departing from the principle of the present invention. These improvements and modifications are also considered to be within the protection scope of the present invention.

Claims

1. A novel folding cart, comprising a front frame (1) and a rear frame (2) arranged front and rear, and a side frame (3) arranged between the two for unfolding and folding, wherein the side frame (3) comprises a front top rod (31), a front bottom rod (32), a rear top rod (33), and a rear bottom rod (34), the front ends of the front top rod (31) and the front bottom rod (32) are respectively pivotally connected to the upper side and the lower side of the front frame (1), the rear ends of the rear top rod (33) and the rear bottom rod (34) are respectively pivotally connected to the upper side and the lower side of the rear frame (2), the rear end of the front top rod (31) is pivotally connected to the front end of the rear top rod (33), and the rear end of the front bottom rod (32) is pivotally connected to the front end of the rear bottom rod (34); characterized in that: The side frame (3) further comprises: A front oblique rod (35), the front end of which is slidably connected to the front bottom rod (32), and the rear end of which is hinged between the front top rod (31) and the rear top rod (33); and / or The rear oblique rod (36) has a rear end slidably connected to the rear bottom rod (34) and a front end hinged between the front top rod (31) and the rear top rod (33).

2. The novel folding trolley according to claim 1 is characterized in that: It also includes an upper hinge seat (37) which is arranged between the front push rod (31) and the rear push rod (33) and is respectively hinged to the two.

3. The new folding trolley according to claim 2 is characterized in that: The rear end of the front diagonal rod (35) and / or the front end of the rear diagonal rod (36) are hinged to the upper hinge seat (37).

4. The novel foldable trolley according to claim 2 is characterized in that: The front end of the upper articulated seat (37) is articulated to the rear end of the front push rod (31), the rear end of the upper articulated seat (37) is articulated to the front end of the rear push rod (33), and the rear end of the front oblique rod (35) and / or the front end of the rear oblique rod (36) are sequentially articulated to the middle part of the upper articulated seat (37).

5. The novel folding trolley according to claim 4 is characterized in that: When the novel foldable trolley is folded from an unfolded state to a folded state, the rear end of the front diagonal rod (35) and the front end of the rear diagonal rod (36) rotate around the hinge to the end away from the hinge and gradually move downward.

6. The novel foldable trolley according to claim 4 is characterized in that: When the novel folding trolley is in an unfolded state, the front push rod (31), the rear push rod (33) and the upper hinge seat (37) are all arranged horizontally; when the novel folding trolley is folded from an unfolded state to a folded state, the front push rod (31) and the rear push rod (33) are arranged vertically, and the upper hinge seat (37) remains arranged horizontally.

7. The novel foldable trolley according to claim 1 is characterized in that: The front end of the front oblique rod (35) is hinged with a front sliding seat (351), and the front sliding seat (351) is sleeved on the front bottom rod (32) and can slide along the front bottom rod (32); and / or A rear sliding seat (361) is hinged at the rear end of the rear oblique rod (36), and the rear sliding seat (361) is sleeved on the rear bottom rod (34) and can slide along the rear bottom rod.

8. The new folding trolley according to claim 7 is characterized by: A front anti-slip portion (321) is provided on the front bottom bar (32) at the front side of the front sliding seat (351); when the novel folding trolley is in a fully unfolded state, the front sliding seat (351) abuts against the front anti-slip portion (321) to limit the sliding thereof; and / or A rear anti-slip portion (341) is provided on the rear bottom rod (34) at the rear side of the rear sliding seat (361); when the novel folding trolley is in a fully unfolded state, the rear sliding seat (361) abuts against the rear anti-slip portion (341) to limit sliding.

9. The novel foldable trolley according to claim 1 is characterized by: It also includes a lower hinge seat (38) which is arranged between the front bottom bar (32) and the rear bottom bar (34) and is respectively hinged to the two.

10. The novel foldable trolley according to claim 9 is characterized in that: When the novel folding trolley is in an unfolded state, the front bottom bar (32), the rear bottom bar (34) and the lower hinge seat (38) are all arranged horizontally; when the novel folding trolley is folded from an unfolded state to a folded state, the front bottom bar (32) and the rear bottom bar (34) are arranged vertically, and the lower hinge seat (38) remains arranged horizontally.

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