CN212878299U

CN212878299U - Unilateral folding leg

Info

Publication number: CN212878299U
Application number: CN202020951684.4U
Authority: CN
Inventors: 梁晖
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-04-06
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a unilateral folding frame, which comprises a rear frame, two side frames, more than two trays and at least one tray connecting rod; the rear frame is provided with at least two first transverse rotating shaft positions which are arranged at intervals up and down, and the left side and the right side of the rear frame are respectively provided with a vertical rotating shaft position; the side frames are respectively pivoted on the vertical rotating shaft positions; the side frame is provided with at least two tray supporting parts which are arranged at intervals up and down; the trays are respectively pivoted to the first transverse rotating shaft positions, and the tray connecting rods are pivoted to the trays one by arranging the second transverse rotating shaft positions; through the setting of after-poppet, both sides frame, tray and tray connecting rod, utilize the connecting rod to be connected every tray to realize that disposable operation makes a plurality of trays expand or fold up in step and operate, easy operation, convenient to use has satisfied user's user demand, and the practicality is strong, and application scope is wide.

Description

Unilateral folding leg

Technical Field

The utility model belongs to the technical field of the folding leg technique and specifically relates to indicate a unilateral folding leg.

Background

At present, the commodity shelf is widely used in various industries, can be placed in a classified and layered mode according to different cargos to be sorted, can save the occupied area of the cargos, can be placed orderly, and can also take moisture-proof measures; the existing storage rack is usually fixed and can not be folded, so that the storage rack occupies a large space, is high in logistics transportation cost, and can not meet the use requirements of users.

Later, the inventor invents a folding frame which can be unfolded for use or folded for storage according to the use requirements of users, and has small occupied space and low transportation cost; however, the existing folding frame has poor structural design, and when folded and unfolded, the folding frames need to move each laminated plate one by one, so that the folding frame is troublesome to operate and inconvenient to use; in addition, the conventional folding frame is flat in the folded state and has a small size in the thickness direction, but the folding frame has a large size in the height direction and even has a larger height value than that in the unfolded use state, so that the folding frame still has the limitations of inconvenient storage, small application range and the like.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model discloses to the disappearance that prior art exists, its main objective provides a unilateral folding leg, and it utilizes the connecting rod to be connected every tray through the setting of after-poppet, both sides frame, tray and tray connecting rod to realize that disposable operation makes the synchronous expansion of a plurality of trays or fold up and operate, easy operation, convenient to use has satisfied user's user demand.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

a unilateral folding leg, including a back frame, two side frames, more than two trays and at least a tray connecting rod, wherein:

the rear frame is provided with at least two first transverse rotating shaft positions which are arranged at intervals up and down, and the left side and the right side of the rear frame are respectively provided with a vertical rotating shaft position;

the rear ends of the side frames are respectively pivoted to the vertical rotating shaft positions, so that the front ends of the side frames can rotate left and right around the rear frame; the side frame is provided with at least two tray supporting parts which are arranged at intervals up and down;

the rear ends of the trays are respectively pivoted to the first transverse rotating shaft positions, and the tray connecting rods are pivoted to the trays one by one through the arrangement of the second transverse rotating shaft positions, so that the front ends of the trays can synchronously rotate up and down around the rear frame;

when the tray is unfolded, the two side frames are vertically positioned at the left side and the right side of the rear frame, the trays are respectively and horizontally arranged to form a stacked shape with an upper space and a lower space, and the front ends of the trays are positioned on the tray supporting part; when the folding tray is folded, the tray rotates upwards together until the front side of the rear frame is vertically arranged, and the two side frames rotate oppositely and are folded on the front side of the tray.

As a preferable scheme, the rear frame further comprises a top plate, the rear frame is provided with a third transverse rotating shaft, the rear end of the top plate is pivoted to the third transverse rotating shaft, and the side frame is provided with a top plate supporting part; when the foldable table is unfolded, the top plate is horizontally arranged, and the front end of the top plate is positioned on the top plate supporting part; when folded, the top plate rotates around the third transverse rotating shaft position to be vertically arranged.

As a preferable scheme, when folded, the top plate is folded upwards and backwards by 270 degrees and is vertically arranged at the rear side of the rear frame.

Preferably, the top board supporting part can be rotatably arranged so as to be selectively supported at the bottom of the top board or the limit of the lower part of the top board is released; when the folding device is folded, the supporting part of the top plate is rotated to release the limit on the lower part of the top plate, and the top plate is vertically arranged at the front side of the rear frame by being downwards and backwards folded by 90 degrees.

As a preferred scheme, the rear frame is provided with first guardrails corresponding to the trays respectively; and/or the tray itself has a second guardrail.

Preferably, the roof support portion is provided with a stopper portion for limiting a rotation angle of the roof support portion.

Compared with the prior art, the utility model has obvious advantages and beneficial effects, concretely speaking, according to the technical scheme, the utility model is mainly characterized in that each tray is connected by the connecting rod through the arrangement of the rear frame, the two side frames, the trays and the tray connecting rods, so as to realize the operation of synchronously unfolding or folding the trays by one-time operation, the operation is simple, the use is convenient, the use requirements of users are met, the practicability is strong, and the application range is wide;

secondly, the setting of roof has increased the thing area of putting of folding leg, and, the setting of can turning over of roof, utilize the roof to turn over backward or down backward and roll over to fold mutually with the tray of the top and establish, reduced the holistic height of folding leg, user's user demand has been satisfied, and simultaneously, the setting of roof support and spacing portion is favorable to the expansion location and the operation of folding up of roof, avoids the too big damage that leads to tray support of the turned angle of tray support and can't use.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a schematic view of a first embodiment of the present invention in an expanded state;

FIG. 2 is a schematic view of the first embodiment of the present invention in a folded state;

FIG. 3 is another angular schematic view of the structure shown in FIG. 2;

fig. 4 is a perspective view of a second embodiment of the present invention;

fig. 5 is a perspective view of a third embodiment of the present invention;

fig. 6 is a perspective view of a fourth embodiment of the present invention;

fig. 7 is a perspective view of a fifth embodiment of the present invention;

fig. 8 is a perspective view of a sixth embodiment of the present invention;

fig. 9 is a perspective view of a seventh embodiment of the present invention;

FIG. 10 is another angular schematic view of the structure shown in FIG. 9;

fig. 11 is a schematic view of a seventh embodiment of the present invention in a folded state;

fig. 12 is a schematic view showing an expanded state of the eighth embodiment of the present invention;

fig. 13 is a schematic view of an eighth embodiment of the present invention in a folded state;

FIG. 14 is another angular schematic view of the structure shown in FIG. 13;

FIG. 15 is a side view of the structure shown in FIG. 13;

fig. 16 is a partially enlarged schematic view of a tray support portion according to an eighth embodiment of the present invention;

fig. 17 is a partially enlarged schematic view of a connecting portion according to an eighth embodiment of the present invention.

The attached drawings indicate the following:

10. rear frame 101, vertical rod

102. Connecting part 103 and first pivot part

104. Second pivot joint 105, extension part

106. The first pivot hole 107 and the second pivot hole

11. Side frame 12, caster

13. Tray supporting part 14, guardrail

141. Front guardrail 142 and rear guardrail

15. Top plate 16 and top plate support part

161. Limiting part 21 and tray

211. Tray body 212, outer frame

213. A pivot part 22 and a connecting rod.

Detailed Description

Fig. 1 to 17 show specific structures of various embodiments of the present invention.

As shown in fig. 1, fig. 2 and fig. 3, in the first embodiment, a single-side folding rack includes a rear rack 10, two side racks 11, more than two trays 21 and at least one tray connecting rod 22, wherein:

the rear frame 10 is provided with at least two first transverse rotating shaft positions which are arranged at intervals up and down, and the left side and the right side of the rear frame 10 are respectively provided with a vertical rotating shaft position;

the rear ends of the side frames 11 are respectively pivoted to the vertical rotating shaft positions, so that the front ends of the side frames 11 can rotate left and right around the rear frame 10; at least two tray supporting parts 13 which are arranged at intervals up and down are arranged on the side frame 11;

the rear ends of the trays 21 are respectively pivoted to the first transverse rotating shaft positions, and the tray connecting rods 22 are pivoted to the trays 21 one by one through arranging the second transverse rotating shaft positions, so that the front ends of the trays 21 can synchronously rotate up and down around the rear frame 10;

when the foldable rack is unfolded, the two side frames 11 are vertically positioned at the left side and the right side of the rear frame 10, the trays 21 are respectively and horizontally arranged to form a stacked shape with an upper space and a lower space, and the front ends of the trays 21 are positioned on the tray supporting parts 13; when folded, the tray 21 rotates upwards together until the front side of the rear frame 10 is vertically arranged, and the two side frames 11 rotate oppositely and are folded on the front side of the tray 21; so, through the setting of after-poppet, both sides frame, tray and tray connecting rod, utilize the connecting rod to be connected every tray to realize that disposable operation makes a plurality of trays expand or fold up in step and operate, easy operation, convenient to use has satisfied user's user demand, and the practicality is strong, and application scope is wide.

Here, the rear frame 10 is provided with first guardrails corresponding to the trays 21; and/or the tray 21 itself has a second guard rail; specifically, the method comprises the following steps:

as shown in fig. 4, in the second embodiment, the tray 21 includes a tray body 211 and an outer frame 212 disposed on the tray body 211, the outer frame 212 includes a first frame body, a second frame body and a third frame body, the first to third frame bodies are sequentially connected from left to right around the periphery of the tray body 21, and the pivot portion 213 is disposed at the rear end of the tray body 211; the guardrail 14 comprises a front guardrail 141 and a rear guardrail 142, the rear guardrail 142 is arranged on the rear frame 10 and is positioned above the rear side of the tray 21, the front guardrail 141 is arranged at the upper end of the second frame body, and a plurality of round holes are formed in the surface of the tray body 21;

as shown in fig. 5, in the third embodiment, the main structure is the same as that of the second embodiment, except that two front guard rails 141 are provided, and the two front guard rails 141 are arranged at the upper end of the second frame body in a left-right interval manner;

as shown in fig. 6, in the fourth embodiment, the tray 21 includes an outer frame 212, in which the tray body 211 is disposed on the tray body 211, the tray body 211 is disposed in a grid shape, the outer frame 212 is disposed around the periphery of the tray body 211, the left end and the right end of the outer frame 212 are pivotally connected to the rear frame 10, a placement slot for placing an article is formed between the tray body 211 and the outer frame 212, and the guardrail 14 is formed on the outer frame 212;

as shown in fig. 7, in the fifth embodiment, the main structure is the same as that of the fourth embodiment, except that the guard rails 14 extend in the same direction around the extending direction of the outer frame 212, the guard rails 14 are disposed at the upper end of the outer frame 212, and the guard rails 14 are connected to the outer frame 212 through connectors;

as shown in fig. 8, in the sixth embodiment, the main structure is the same as that of the fifth embodiment, except that a plurality of circular holes are formed on the surface of the tray body 211, two guard rails 14 are provided, two guard rails 14 are arranged on the outer frame 212 in a left-right manner, the inner ends of the guard rails 14 are extended inward, and the end portions of the guard rails are bent downward and connected to the inner wall of the placement groove.

The rear frame 10 is provided with a third transverse rotating shaft, the rear end of the top plate 15 is pivoted to the third transverse rotating shaft, and the side frame 11 is provided with a top plate supporting part 16; when unfolded, the top plate 15 is horizontally arranged, and the front end of the top plate 15 is positioned on the top plate support part 16; when folded, the top plate 15 rotates around the third transverse rotation axis to be vertically arranged.

As shown in fig. 9, 10 and 11, in the seventh embodiment, when folded, the top plate 15 is folded upward and backward by 270 degrees and is vertically disposed at the rear side of the rear frame 10.

As shown in fig. 12, 13, 14 and 15, in an eighth embodiment, the top plate supporting portion 16 is rotatably disposed to selectively support the bottom of the top plate 15 or release the limit of the lower portion of the top plate 15; when the folding device is folded, the top plate supporting part 16 is rotated to release the limit on the lower part of the top plate 15, and the top plate 15 is vertically arranged at the front side of the rear frame 10 by being turned downwards and backwards by 90 degrees; preferably, the roof support 16 is provided with a stopper 161 for limiting the rotation angle of the roof support 16.

When the foldable rack is used, the two side frames 11 are outwards overturned and unfolded, the top plate 15 is outwards overturned and extends out of the upper side between the two side frames 11, the top plate supporting parts 16 are inwards rotated and unfolded corresponding to the side frames 11 and are exposed between the two side frames 11, the top plate 15 is forwards and downwards rotated and limited on the top plate supporting parts 16, and the tray 21 is forwards and outwards rotated and unfolded and limited on the corresponding tray supporting parts 13;

when folding, firstly, the top plate 15 is rotated upwards and backwards for a certain angle to enable the top plate to be separated from the top plate supporting part 16, the top plate supporting part 16 rotates outwards in the corresponding side frame 11 to be folded and is hidden in the side frame 11, the top plate 15 is folded and arranged on the rear frame 10 forwards and downwards, the top plate 15 is vertically arranged, the tray 21 rotates backwards and upwards to be folded, and the tray 21 at the uppermost side is overlapped with the top plate 15.

The caster wheels 12 are arranged at the lower ends of the rear frame 10 and the two side frames 11 respectively, and the caster wheels 12 of the rear frame 10 are arranged at intervals corresponding to the caster wheels 12 of the two side frames 11.

The two side frames 11 are respectively arranged at the left side and the right side of the rear frame 10, the rear frame 10 is provided with a first pivot hole 106 and a second pivot hole 107, the first pivot hole 106 extends up and down, the second pivot hole 107 extends left and right, the vertical rotating shaft is formed on the first pivot hole 106, the first transverse rotating shaft and the third transverse rotating shaft are formed on the second pivot hole 107, the two side frames 11 are arranged at the inner side of the first pivot hole 106, and the tray 21 and the top plate 15 are respectively arranged at the inner side of the second pivot hole 107;

the rear frame is further provided with a first pivot piece 103 and a second pivot piece 104, the first pivot piece 103 is sequentially connected with the first pivot hole 106 and the side frame 11 from outside to inside to form assembly connection between the side frame 11 and the rear frame 10, and the second pivot piece 104 extends into the second pivot hole 107 from outside to inside and is connected to the corresponding tray 21 and the corresponding top plate 15 to form assembly connection between the tray 21, the top plate 15 and the rear frame 10.

Generally, the rear frame 10 includes two vertical rods 101, the two vertical rods 101 are arranged in a left-right spacing manner, the upper and lower ends of the vertical rods 101 are provided with connecting portions 102, and the first pivot holes 106 are formed on the connecting portions 102; the second pivot holes 107 are respectively arranged at the opposite sides of the two vertical rods 101, and the inner ends of the second pivot pieces 104 are respectively connected to the left side and the right side of the corresponding tray 21 and the top plate 15;

preferably, the tray 21 and the top plate 15 are both provided with a pivoting portion 213, the pivoting portion 213 is arranged at the rear end of the tray 21 and the top plate 15 in a left-right spacing manner, and the inner end of the second pivoting member 104 is connected to the pivoting portion 213; the upper end and the lower end of the vertical rod 101 are provided with extending parts 105 extending forwards, and the connecting part 102 is arranged on the extending parts 105; when folded, the two side frames 11 are limited by the front ends of the extending portions 105.

The utility model is mainly characterized in that the connecting rods are used for connecting each tray through the arrangement of the rear frame, the two side frames, the trays and the tray connecting rods, so as to realize the operation of synchronously unfolding or folding the trays at one time, the operation is simple, the use is convenient, the use requirements of users are met, the practicability is strong, and the application range is wide;

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a unilateral folding leg which characterized in that: including a after-poppet (10), both sides frame (11), more than two tray (21) and at least a tray connecting rod (22), wherein:

the rear frame (10) is provided with at least two first transverse rotating shaft positions which are arranged at intervals up and down, and the left side and the right side of the rear frame (10) are respectively provided with a vertical rotating shaft position;

the rear ends of the side frames (11) are respectively pivoted to the vertical rotating shaft positions, so that the front ends of the side frames (11) can rotate left and right around the rear frame (10); the side frame (11) is provided with at least two tray supporting parts (13) which are arranged at intervals up and down;

the rear ends of the trays (21) are respectively pivoted to the first transverse rotating shaft positions, and the tray connecting rods (22) are pivoted to the trays (21) one by one through arrangement of the second transverse rotating shaft positions, so that the front ends of the trays (21) can synchronously rotate up and down around the rear frame (10);

when the foldable bicycle is unfolded, the two side frames (11) are vertically positioned at the left side and the right side of the rear frame (10), the trays (21) are respectively and horizontally arranged to form a vertically-spaced stacked shape, and the front ends of the trays (21) are positioned on the tray supporting parts (13); when folded, the tray (21) rotates upwards together until the front side of the rear frame (10) is vertically arranged, and the two side frames (11) rotate oppositely and are folded on the front side of the tray (21).

2. The one-sided folding leg as claimed in claim 1, wherein: the rear frame (10) is provided with a third transverse rotating shaft, the rear end of the top plate (15) is pivoted to the third transverse rotating shaft, and the side frame (11) is provided with a top plate supporting part (16); when the roof panel is unfolded, the roof panel (15) is horizontally arranged, and the front end of the roof panel (15) is positioned on the roof panel supporting part (16); when folded, the top plate (15) rotates around the third transverse rotating shaft position to be vertically arranged.

3. The one-sided folding leg as claimed in claim 2, wherein: when folded, the top plate (15) is vertically arranged at the rear side of the rear frame (10) by upwards and backwards folding 270 degrees.

4. The one-sided folding leg as claimed in claim 2, wherein: the top plate supporting part (16) can be rotatably arranged so as to be selectively supported at the bottom of the top plate (15) or the limit below the top plate (15) is released; when the folding device is folded, the top plate supporting part (16) is rotated to release the limit on the lower part of the top plate (15), and the top plate (15) is vertically arranged at the front side of the rear frame (10) by being downwards and backwards folded by 90 degrees.

5. The one-sided folding leg as claimed in claim 1, wherein: the rear frame (10) is provided with first guardrails corresponding to the trays (21) respectively; and/or the tray (21) itself has a second guardrail.

6. The one-sided folding leg as claimed in claim 4, wherein: the top plate supporting part (16) is provided with a limiting part (161) for limiting the rotation angle of the top plate supporting part (16).