CN220315033U

CN220315033U - Folding trolley frame body with single side open

Info

Publication number: CN220315033U
Application number: CN202321899116.4U
Authority: CN
Inventors: 夏玲爱
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-07-19
Filing date: 2023-07-19
Publication date: 2024-01-09
Anticipated expiration: 2033-07-19

Abstract

The utility model relates to a folding pushing frame body with an open single side, which comprises a front frame, a rear frame, a single side frame and a bottom frame, wherein the front frame and the rear frame are respectively connected with the front side and the rear side of the bottom frame; through only setting up unilateral frame for folding shallow not only can place the article, can also sit the people, and the people can sit on folding shallow open one side, and lean against unilateral frame, improved travelling comfort and security when sitting the people, and even after placing the table on front frame and back frame, still can take article from folding shallow open one side, convenient to use; the folding cart solves the technical problem that the folding cart in the prior art cannot give consideration to comfort and safety when sitting on a person and the convenience of taking objects.

Description

Folding trolley frame body with single side open

Technical Field

The utility model relates to the technical field of folding carts, in particular to a folding cart frame body with an open single side.

Background

At present, the whole framework of the folding cart is mainly divided into two modes, wherein the periphery of the whole framework is designed in a closed or semi-closed mode, for example, the carts disclosed in Chinese patent CN209700727U and CN 207416897U; another is a two-sided open, front-to-back, closed or semi-closed design, such as the cart disclosed in chinese patent CN 215284881U. In the first mode, the periphery of the framework is closed, so that the function of sitting on the side cannot be realized, and meanwhile, when the panel is tiled on the vehicle body, the periphery of the framework is closed, so that the articles in the vehicle body can be taken out only by taking off the table panel when the articles in the vehicle body are required to be taken out, and the operation is very inconvenient; the second mode is that people can sit, but because both sides of the skeleton of the mode are open, the skeleton of one side of the back is open when people sit on one side, the supporting effect on the back cannot be achieved, the comfort is not high, and meanwhile, the potential safety hazard of falling backwards exists.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model aims to provide a folding trolley frame body with an open single side, so as to solve the technical problem that the folding trolley in the prior art cannot be taken into consideration of comfort and safety when sitting on a person and convenience in taking out objects.

In order to solve the technical problems, the utility model provides a folding cart frame body with an open single side, which comprises a front frame, a rear frame, a single side frame and a bottom frame, wherein the front frame and the rear frame are respectively connected with the front side and the rear side of the bottom frame, the front side and the rear side of the single side frame are respectively connected with the left side of the front frame and the left side of the rear frame, the bottom frame and the single side frame are of mutually linked foldable structures, and a limiting mechanism for enabling the folding cart frame body to be kept in an unfolding state when being unfolded is arranged on the bottom frame.

After the structure is adopted, the folding trolley frame body with the single side open has the following advantages: through only setting up unilateral frame for folding shallow not only can place the article, can also sit the people, and the people can sit open one side on folding shallow, and lean against unilateral frame, improved travelling comfort and security when sitting the people, and even after placing the table on preceding frame and back frame, still can follow folding shallow open one side and take article, convenient to use.

As an improvement, the bottom frame comprises a first frame and a second frame, one end of the first frame is hinged with the bottom end of the front frame, the other end of the first frame is hinged with one end of the second frame, the other end of the second frame is hinged with the bottom end of the rear frame, the limiting mechanism comprises a stop bar arranged on the other end of the first frame, when the folding pushing frame body is in a unfolding state, the stop bar is propped against one end of the second frame and enables one end of the second frame and the other end of the first frame not to rotate downwards, and when the folding pushing frame body is needed to be folded, the other end of the first frame and one end of the second frame rotate upwards; by adopting the structure, when the folding device is folded, the hinge joint of the first frame and the second frame is lifted upwards, and the first frame and the second frame are closed and folded, so that the folding operation is convenient.

As an improvement, the unilateral frame comprises a plurality of first scissor type hinging pieces, the first scissor type hinging pieces are sequentially hinged back and forth, the upper end of the first scissor type hinging piece positioned at the forefront side is hinged with the front frame, the lower end of the scissor type hinging rod positioned at the forefront side is hinged with a first sliding block which is slidably connected with the front frame, the upper end of the first scissor type hinging piece positioned at the rearmost side is hinged with the rear frame, and the lower end of the scissor type hinging rod positioned at the rearmost side is hinged with a second sliding block which is slidably connected with the rear frame.

As an improvement, the upper ends of the first scissor type hinging pieces positioned at the foremost side and the rearmost side are respectively provided with a first bending section, and the first bending sections are respectively hinged with the upper parts of the right sides of the front frame and the rear frame; by adopting the structure, as one side of the whole trolley frame body is in an open design, no rigid support exists, when the upper end of the right opening part of the front frame or the rear frame is subjected to outward force along the trolley body, if excessive articles or people are transported on the underframe, the palm is supported on the upper end of the right opening part of the front frame or the rear frame, the front frame or the rear frame is easy to damage, and at the moment, the first bending sections hinged with the upper parts of the right sides of the front frame and the rear frame are arranged at the upper ends of the first scissor type hinging parts at the forefront side and the rearmost side, so that the front frame and the rear frame can be better reinforced.

As an improvement, the underframe comprises a connecting block and four first connecting rods, the projection of the connecting block on the horizontal plane falls on the center of the underframe, one ends of the four first connecting rods are hinged with the connecting block, the other ends of the four first connecting rods are obliquely arranged and are respectively hinged with the left side and the right side of the bottom end of the front frame and the left side and the right side of the bottom end of the rear frame, the front frame and the rear frame are of foldable structures which are folded along the left-right direction, the limiting mechanism comprises a baffle plate connected to the upper end face of the connecting block, when the folding trolley frame body is in an unfolding state, the upper end face of one end of each first connecting rod is propped against the baffle plate, so that one end of each first connecting rod cannot rotate downwards, and when the folding trolley frame body needs to be folded, one end of each first connecting rod rotates upwards; by adopting the structure, the bottom frame, the single side frame, the front frame and the rear frame all adopt foldable structures, so that the left and right width of the folded cart is smaller, and the structure is more compact.

The front frame comprises two first upright posts and a plurality of second scissor type hinging pieces, the second scissor type hinging pieces are sequentially hinged left and right, the upper ends of the second scissor type hinging pieces positioned at the leftmost side are sequentially hinged left and right, the lower ends of the second scissor type hinging pieces positioned at the leftmost side are hinged with first sliding blocks which are connected to the first upright posts positioned at the left side in a sliding manner, the upper ends of the second scissor type hinging pieces positioned at the rightmost side are hinged with first upright posts positioned at the right side, the lower ends of the second scissor type hinging pieces positioned at the rightmost side are hinged with third sliding blocks which are connected to the first upright posts positioned at the right side in a sliding manner, the rear frame comprises two second upright posts and a plurality of third scissor type hinging pieces, the upper ends of the third scissor type hinging pieces positioned at the leftmost side are hinged with the second upright posts positioned at the left side in a sliding manner, the lower ends of the third scissor type hinging pieces positioned at the leftmost side are hinged with the second upright posts positioned at the right side in a sliding manner, and the upper ends of the third scissor type hinging pieces positioned at the rightmost side are hinged with the third sliding blocks positioned at the right side.

As an improvement, the unilateral frame comprises two second connecting rods and two third connecting rods, the two second connecting rods are arranged in a crossing way and are hinged with each other, one end of one third connecting rod is hinged with the upper end of the second connecting rod, which is close to the front frame, of the upper ends of the two second connecting rods, the other end of the third connecting rod is hinged with the front frame, one end of the other third connecting rod is hinged with the upper end of the second connecting rod, which is close to the rear frame, of the upper ends of the two second connecting rods, and the other end of the other third connecting rod is hinged with the rear frame.

As an improvement, the other ends of the two third connecting rods are bent rightwards to extend a section of second bending section, and the second bending section is hinged with the upper ends of the right sides of the front frame and the rear frame respectively; by adopting the structure, as one side of the whole trolley frame body is in an open design, no rigid support exists, when the upper end of the right opening part of the front frame or the rear frame is subjected to outward force along the trolley body, if excessive articles or people are transported to sit on the bottom frame, the palm is supported on the upper end of the right opening part of the front frame or the rear frame, the front frame or the rear frame is easy to damage, and at the moment, the second bending section hinged with the right upper ends of the front frame and the rear frame is arranged at the other ends of the two third connecting rods, so that the front frame and the rear frame can be better reinforced.

As an improvement, the utility model also comprises a tabletop plate arranged on the front frame and the rear frame; by adopting the structure, articles can be conveniently placed on the tabletop plate, and the articles can still be taken from the open side of the folding cart when the tabletop plate is placed, so that the folding cart is convenient to use.

As an improvement, the front frame is connected with a push-pull rod, the push-pull rod is hinged with the front frame, and the bottom ends of the front frame and the rear frame are connected with rollers; by adopting the structure, the cart is convenient to move and saves more labor during movement.

Drawings

Fig. 1 is a schematic perspective view of the whole structure of the table top without being placed in the first embodiment of the utility model.

Fig. 2 is a schematic perspective view of the whole structure of the table top according to the first embodiment of the utility model.

Fig. 3 is a schematic perspective view of the whole structure when folded in the first embodiment of the present utility model.

Fig. 4 is a schematic perspective view of the whole structure in the second embodiment of the present utility model.

Fig. 5 is a schematic perspective view of the whole structure when folding in the second embodiment of the present utility model.

Fig. 6 is a schematic perspective view of the whole structure in the third embodiment of the present utility model.

Fig. 7 is a schematic perspective view of the whole structure when folded in the third embodiment of the present utility model.

Reference numerals: 100. a front frame; 200. a rear frame; 300. a single side frame; 400. a bottom frame; 500. a push-pull rod; 600. a roller; 700. a table top; 1. a first frame; 2. a second frame; 3. a first scissor hinge; 31. a first bending section; 4. a first slider; 5. a second slider; 6. a connecting block; 7. a first link; 8. a first upright; 9. a second scissor hinge; 10. a third slider; 11. a second upright; 12. a third scissor hinge; 13. a fourth slider; 14. a second link; 15. a third link; 151. and a second bending section.

Detailed Description

The folding cart frame body with one side open is described in detail below with reference to the accompanying drawings.

Embodiment one:

as shown in fig. 1 to 3, the present embodiment provides a folding cart frame with an open single side, which includes a front frame 100, a rear frame 200, a single side frame 300 and a bottom frame 400, wherein the front frame 100 and the rear frame 200 are respectively connected to the front and rear sides of the bottom frame 400, the front and rear sides of the single side frame 300 are respectively connected to the left side of the front frame 100 and the left side of the rear frame 200, the front frame 100 is connected with a push-pull rod 500, and the lower end of the push-pull rod 500 is hinged to the bottom end of the front frame 100; the bottom frame 400 and the single side frame 300 are all in a mutually linked foldable structure folded along the front-back direction, wherein the bottom frame 400 is folded along the front-back direction, the single side frame 300 is also folded along the front-back direction, and the bottom ends of the front frame 100 and the rear frame 200 are connected with rollers 600, in this embodiment, four rollers 600 are all distributed in four corners. The bottom frame 400 is provided with a limiting mechanism for keeping the folding cart frame body in a unfolded state when unfolded

As shown in fig. 1, the bottom frame 400 includes a first frame 1 and a second frame 2, one end of the first frame 1 is hinged to the bottom end of the front frame 100, the other end of the first frame 1 is hinged to one end of the second frame 2, the other end of the second frame 2 is hinged to the bottom end of the rear frame 200, the axial direction during rotation is in the left-right direction, the limiting mechanism includes a blocking strip disposed on the other end of the first frame 1, when the folding cart frame body is in a unfolded state, the blocking strip abuts against the upper side of one end of the second frame 2 and makes one end of the second frame 2 and the other end of the first frame 1 unable to rotate downwards, and when the folding cart frame body needs to be folded, the other end of the first frame 1 and one end of the second frame 2 rotate upwards.

As shown in fig. 1, the single-sided frame 300 includes a plurality of first scissor-type hinges 3, the first scissor-type hinges 3 are hinged back and forth in sequence, in this embodiment, there are three groups of first scissor-type hinges 3 in total, the first scissor-type hinge 3 in the middle is hinged back and forth to one group of first scissor-type hinges 3, the upper end of the first scissor-type hinge 3 located at the forefront is hinged with the front frame 100, the lower end of the first scissor-type hinge 3 located at the forefront is hinged with the first slider 4 slidingly connected with the front frame 100, the upper end of the first scissor-type hinge 3 located at the rearmost side is hinged with the rear frame 200, and the lower end of the first scissor-type hinge 3 located at the rearmost side is hinged with the second slider 5 slidingly connected with the rear frame 200; in addition, the upper end of the first scissor hinge 3 at the foremost side is bent to the right to extend a first bending section 31, the right end of the first bending section 31 is hinged to the upper right side of the front frame 100, the upper end of the first scissor hinge 3 at the rearmost side is bent to the right to extend another first bending section 31, and the right end of the first bending section 31 is hinged to the upper right end of the rear frame 200.

According to the folding cart, only the single-side frame is arranged, so that not only can articles be placed, but also people can sit on the folding cart, the people can sit on one open side of the folding cart, and the single-side frame 300 is backed, so that the comfort and safety of sitting people are improved; in addition, the present utility model further includes a table top 700 placed on the front frame 100 and the rear frame 200, and the table top 700 is placed on the front frame 100 and the rear frame 200 in the unfolded state of the folding cart, so that the articles can be taken from the opened side of the folding cart even after the table top 700 is placed on the front frame 100 and the rear frame 200, and the use is convenient. As shown in fig. 3, when the table top 700 is required to be folded, the bottom frame 400 is folded upward, the connection between the first frame 1 and the second frame 2 is arched upward, the front frame 100 and the rear frame 200 are closed to each other, and the single side frame 300 is folded at the same time.

Embodiment two:

as shown in fig. 4 to 5, another folding cart frame body with an open single side is provided in this embodiment, which is different from the first embodiment in that the bottom frame 400 includes a connecting block 6 and four first connecting rods 7, the projection of the connecting block 6 on the horizontal plane falls on the center of the bottom frame 400, one ends of the four first connecting rods 7 are all hinged with the connecting block 6, the other ends of the four first connecting rods 7 are all obliquely arranged and respectively hinged with the left side and the right side of the bottom end of the front frame 100 and the left side and the right side of the bottom end of the rear frame 200, the front frame 100 and the rear frame 200 are all foldable structures folded along the left-right direction, the limiting mechanism includes a baffle plate connected to the upper end surface of the connecting block 6, when the folding cart frame body is in an unfolded state, the upper end surface of one end of each first connecting rod 7 is all abutted against the baffle plate, so that one end of each first connecting rod 7 cannot rotate downwards, and when folding is required, one end of each first connecting rod 7 rotates upwards.

As shown in fig. 4, the front frame 100 includes two first upright posts 8 and a plurality of second scissor hinges 9, and the second scissor hinges 9 are hinged in turn from side to side, in this embodiment, two sets of second scissor hinges 9 are provided; the upper end of the second scissor type hinging piece 9 positioned at the leftmost side is hinged with the first upright post 8 positioned at the left side, the lower end of the second scissor type hinging piece 9 positioned at the leftmost side is hinged with the first sliding block 4 which is slidingly connected with the first upright post 8 positioned at the left side, the upper end of the second scissor type hinging piece 9 positioned at the rightmost side is hinged with the first upright post 8 positioned at the right side, the lower end of the second scissor type hinging piece 9 positioned at the rightmost side is hinged with the third sliding block 10 which is slidingly connected with the first upright post 8 positioned at the right side, the rear frame 200 comprises two second upright posts 11 and a plurality of third scissor type hinging pieces 12, and the plurality of third scissor type hinging pieces 12 are sequentially hinged left and right, and in the embodiment, two groups of third scissor type hinging pieces 12 are arranged; the upper end of the third scissor type hinging piece 12 positioned at the leftmost side is hinged with the second upright post 11 positioned at the left side, the lower end of the third scissor type hinging piece 12 positioned at the leftmost side is hinged with the second sliding block 5 which is slidingly connected on the second upright post 11 positioned at the left side, the upper end of the third scissor type hinging piece 12 positioned at the rightmost side is hinged with the second upright post 11 positioned at the right side, and the lower end of the third scissor type hinging piece 12 positioned at the rightmost side is hinged with the fourth sliding block 13 which is slidingly connected on the second upright post 11 positioned at the right side; the four first connecting rods 7 are respectively hinged with the lower ends of the two first upright posts 8 and the lower ends of the two second upright posts 11.

As shown in fig. 5, when folding, the connection block 6 is lifted up, and the four first links 7 are rotated, and simultaneously, the front frame 100, the rear frame 200, and the single-sided frame 300 are driven to fold.

Embodiment III:

as shown in fig. 6 to 7, another folding cart frame body with one open side is shown in the present embodiment, which is different from the first embodiment in that the single-side frame 300 includes two second links 14 and two third links 15, the two second links 14 are disposed to cross and hinge each other, and the hinge point of the two second links 14 is located at an upper position in the second links 14, wherein one end of one third link 15 is hinged with an upper end of the two second links 14 near an upper end of the second link 14 of the front frame 100, the other end is hinged with the front frame 100 and bends right to extend a second bending section 151, and a right end of the second bending section 151 is hinged with an upper right end of the front frame 100; one end of the other third connecting rod 15 is hinged with the upper end of the second connecting rod 14, which is close to the upper end of the second connecting rod 14 of the rear frame 200, the other end of the other third connecting rod is hinged with the rear frame 200 and is bent rightwards to extend out of the other second bending section 151, and the right end of the second bending section 151 is hinged with the right upper end of the rear frame 200.

As shown in fig. 7, when the bottom frame 400 is folded upward, the junction of the first frame 1 and the second frame 2 is arched upward, the front frame 100 and the rear frame 200 are close to each other, and the single-sided frame 300 is folded at the same time.

The embodiments of the present utility model have been described in detail with reference to the accompanying drawings, but the present utility model is not limited to the three embodiments, and all other examples obtained by those skilled in the art without making any inventive effort are within the scope of the present utility model.

Claims

1. The utility model provides a unilateral open folding pushing frame body, its characterized in that includes a preceding frame (100), a back frame (200), a unilateral frame (300) and a underframe (400), preceding frame (100) with back frame (200) are connected respectively both sides around underframe (400), both sides are connected respectively around unilateral frame (300) the left side of preceding frame (100) with the left side of back frame (200), underframe (400) with unilateral frame (300) are the collapsible structure of mutual linkage, be equipped with on underframe (400) and be used for making folding pushing frame body keeps the stop gear in the state of expanding when expanding.

2. The folding cart frame body with one side opened according to claim 1, wherein the bottom frame (400) comprises a first frame (1) and a second frame (2), one end of the first frame (1) is hinged to the bottom end of the front frame (100), the other end of the first frame (1) is hinged to one end of the second frame (2), the other end of the second frame (2) is hinged to the bottom end of the rear frame (200), the limiting mechanism comprises a blocking strip arranged on the other end of the first frame (1), and when the folding cart frame body is in a unfolded state, the blocking strip abuts against one end of the second frame (2) and enables one end of the second frame (2) and one end of the first frame (1) not to rotate downwards, and when folding is needed, the other end of the first frame (1) and one end of the second frame (2) rotate upwards.

3. A single-sided open folding stroller frame according to claim 1 or 2, characterized in that the single-sided frame (300) comprises a plurality of first scissor-type hinges (3), the first scissor-type hinges (3) are hinged back and forth in sequence, the upper end of the first scissor-type hinge (3) located at the forefront is hinged with the front frame (100), the lower end of the first scissor-type hinge (3) located at the forefront is hinged with a first slider (4) slidingly connected to the front frame (100), the upper end of the first scissor-type hinge (3) located at the rearmost side is hinged with the rear frame (200), and the lower end of the first scissor-type hinge (3) located at the rearmost side is hinged with a second slider (5) slidingly connected to the rear frame (200).

4. A folding push frame body with one side open according to claim 3, characterized in that the upper ends of the first scissor type hinge (3) at the foremost and rearmost sides are provided with a first bending section (31), and the first bending section (31) is hinged with the upper right sides of the front frame (100) and the rear frame (200), respectively.

5. The folding cart frame body with one open side according to claim 1, wherein the bottom frame (400) comprises a connecting block (6) and four first connecting rods (7), the projection of the connecting block (6) on the horizontal plane falls at the center of the bottom frame (400), one end of each first connecting rod (7) is hinged with the connecting block (6), the other ends of the four first connecting rods (7) are obliquely arranged and are respectively hinged with the left side and the right side of the bottom end of the front frame (100) and the left side and the right side of the bottom end of the rear frame (200), the front frame (100) and the rear frame (200) are of foldable structures which are folded along the left and right directions, the limiting mechanism comprises a baffle plate connected with the upper end face of the connecting block (6), when the folding cart frame body is in an unfolded state, the upper end face of one end of each first connecting rod (7) is propped against the baffle plate, so that one end of each first connecting rod (7) cannot rotate downwards, and when the folding cart frame body needs to be folded, the first end of each first connecting rod (7) rotates upwards.

6. The folding push frame body with one open side according to claim 5, wherein the front frame (100) comprises two first upright posts (8) and a plurality of second scissor type hinging members (9), the second scissor type hinging members (9) at the leftmost side are sequentially hinged left and right, the upper ends of the second scissor type hinging members (9) at the leftmost side are hinged with the first upright posts (8) at the left side, the lower ends of the second scissor type hinging members (9) at the leftmost side are hinged with a first sliding block (4) which is in sliding connection with the first upright posts (8) at the left side, the upper ends of the second scissor type hinging members (9) at the rightmost side are hinged with the first upright posts (8) at the right side, the lower ends of the second scissor type hinging members (9) at the rightmost side are hinged with a third sliding block (10) which is connected with the first upright posts (8) at the right side, the rear frame (200) comprises two second scissor type hinging members (11) and a plurality of third scissor type hinging members (12) which are sequentially hinged with the upper ends of the third scissor type hinging members (12) at the leftmost side, the second scissor type hinging members (12) are positioned between the upper ends of the third scissor type hinging members (12) at the leftmost side, the upper end of the third scissor type hinging piece (12) positioned at the rightmost side is hinged with the second upright post (11) positioned at the right side, and the lower end of the third scissor type hinging piece (12) positioned at the rightmost side is hinged with a fourth sliding block (13) which is in sliding connection with the second upright post (11) positioned at the right side.

7. A single-sided open folding stroller frame according to claim 1 or 2, characterized in that the single-sided frame (300) comprises two second links (14) and two third links (15), the two second links (14) are disposed to intersect and are hinged to each other, one end of one third link (15) is hinged to the upper end of the second link (14) of the two second links (14) near the upper end of the second link (14) of the front frame (100), the other end is hinged to the front frame (100), one end of the other third link (15) is hinged to the upper ends of the second links (14) of the two second links (14) near the upper end of the rear frame (200), and the other end is hinged to the rear frame (200).

8. The folding cart frame body with one side opened according to claim 7, wherein the other ends of the two third connecting rods (15) are bent rightwards to extend a second bending section (151), and the second bending section (151) is hinged with the right upper ends of the front frame (100) and the rear frame (200) respectively.

9. The folding push cart frame body of claim 1, further comprising a table top (700) disposed on said front frame (100) and said rear frame (200).

10. The folding push-and-pull cart frame body with one-side opening according to claim 1, wherein the front frame (100) is connected with a push-and-pull rod (500), the push-and-pull rod (500) is hinged with the front frame (100), and the bottom ends of the front frame (100) and the rear frame (200) are both connected with rollers (600).