CN210212465U

CN210212465U - Foldable bracket

Info

Publication number: CN210212465U
Application number: CN201921256586.2U
Authority: CN
Inventors: Peilan Li; 李佩兰
Original assignee: Dongguan Tianyu Luggage Accessories Co Ltd
Current assignee: Dongguan Tianyu Luggage Accessories Co Ltd
Priority date: 2019-08-03
Filing date: 2019-08-03
Publication date: 2020-03-31
Anticipated expiration: 2029-08-03

Abstract

The utility model relates to a case and bag field, more specifically says, it relates to a collapsible bracket, and its technical scheme main points are: including pull rod, preceding support body, back support body setting a plurality of poles of placing between preceding support body and the back support body, preceding support body with all be provided with the walking wheel on the back support body, the pull rod sets up in the front on the support body, be provided with fixed rotating shaft on the preceding support body, the pull rod can rotate around fixed rotating shaft, is provided with the groove of folding up with pull rod looks adaptation on the back support body. The utility model has the advantages of it is following: the material is saved, and the device is more portable; the degree of freedom in the walking process is high; can be folded better; the production cost is low.

Description

Foldable bracket

Technical Field

The utility model relates to a case and bag field, more specifically says, it relates to a collapsible bracket.

Background

The bracket is a carrying tool widely used in various occasions, such as express delivery industry sorting express delivery at an express delivery receiving and dispatching station, building workers carrying building materials in the construction industry, goods on a supplementary goods shelf of a supermarket or a shopping mall, and worker carrying tool boxes in a factory. Chinese patent with patent publication number CN105599790A discloses a foldable folding and unfolding frame vehicle, which has the technical scheme key points that: comprises a vehicle body, a bracket and a pull rod frame, wherein the bracket and the pull rod frame can be folded to the position of the vehicle body. The folding and unfolding trolley has the beneficial effect of convenient folding, but the folding and unfolding trolley only simply folds all parts together, so that the folding effect is not good, and the structural strength is not high. To this end, chinese utility model patent that patent grant publication number is CN206926677U discloses a chassis telescopic luggage van, and its technical scheme main points lie in: comprises a chassis, a pull rod, a fixing piece and a fixed rotating shaft; the chassis can be extended and contracted into two sections, so that a larger bearing area can be obtained; the chassis is provided with a groove for folding the pull rod; the fixing piece is arranged on the pull rod and used for limiting the pull rod to wind the fixing rotating shaft, and the luggage barrow can be adjusted to a state that the pull rod is obliquely pulled, a state that the pull rod is vertically fixed on the chassis and can be pushed and pulled and a state that the luggage barrow is folded by changing the position of the fixing piece. The luggage van with the telescopic chassis has the advantages of high structural strength and good folding effect.

However, the luggage van with the foldable chassis has the advantages that the chassis is made of more materials, and more holes and grains are designed, so that the requirement on a mold is high during production, and the overall production cost is high.

Therefore, there is a need for a foldable bracket that overcomes the above problems.

SUMMERY OF THE UTILITY MODEL

To the deficiency that prior art exists, the utility model aims to provide a collapsible bracket has the firm, effectual and lower advantage of manufacturing cost of folding up structure.

The above technical purpose of the present invention can be achieved by the following technical solutions: a foldable tray, characterized in that: including pull rod, preceding support body, back support body setting a plurality of poles of placing between preceding support body and the back support body, preceding support body with all be provided with the walking wheel on the back support body, the pull rod sets up in the front on the support body, be provided with fixed rotating shaft on the preceding support body, the pull rod can rotate around fixed rotating shaft, is provided with the groove of folding up with pull rod looks adaptation on the back support body.

Through adopting above-mentioned technical scheme, a plurality of poles of placing just can obtain sufficient bearing area under using less material, can save a large amount of materials, and then reduction in production cost. Simultaneously, the back support body sets up the groove of folding up for the bracket is when accomodating the state, and the top of pull rod can be held in the groove department of folding up, has better effect of folding up, and bracket overall design is stable, has better stability.

The utility model discloses further set up to: the front frame body and the rear frame body are all arranged in a hollow mode, the placing rod is also arranged in a hollow mode, a cavity is formed in the front frame body and the rear frame body after the hollow mode is arranged, and a plurality of reinforcing ribs are arranged in the cavity.

Through adopting above-mentioned technical scheme, the fretwork sets up on the one hand and can make the quality of whole bracket lighter, and is more light, and on the other hand also can practice thrift manufacturing cost. The reinforcing ribs can enhance the structural strength of the front frame body and the rear frame body.

The utility model discloses further set up to: the pull rod slides and is equipped with the retaining member, the retaining member is integrative to be set up, the draw-in groove has been seted up to the retaining member, the draw-in groove is in when the pull rod is folded up can with place pole looks adaptation, preceding support body be provided with the rotation groove of retaining member looks adaptation.

By adopting the technical scheme, the integrally arranged locking piece can realize integral locking and integral unlocking.

The utility model discloses further set up to: the rotary groove is arranged towards the opening of the rear frame body, the rotary groove is provided with an inclined surface, the inclined surface is arranged downwards towards the inclination of the rear frame body, and the fixed rotary shaft is arranged at the lower part of the rotary groove.

Through adopting above-mentioned technical scheme, rotate the groove and can make things convenient for the pull rod to rotate towards the opening of back support body, the setting on inclined plane can make the pull rod rotate the contained angle that flushes with the inclined plane at most.

The utility model discloses further set up to: the retaining member is provided with the adaptation arch, it is provided with the adaptation recess to rotate the groove, the retaining member with it passes through the cooperation of pegging graft mutually of adaptation arch and adaptation recess to rotate the groove.

Through adopting above-mentioned technical scheme, the protruding and adaptation recess of adaptation can make the retaining member firmly fix in rotation groove department, realizes the fixed of pull rod.

The utility model discloses further set up to: be provided with sunkenly on the preceding support body, sunken can make retaining member remove with the rotation groove looks adaptation with the draw-in groove cooperation.

Through adopting above-mentioned technical scheme, sunken can make operating personnel's hand easily stretch into draw-in groove department, make things convenient for operating personnel to with retaining member unblock.

The utility model discloses further set up to: back support body department is provided with extension portion, extension portion includes a plurality of extension bars and a fixed block, and is a plurality of extension bar and a plurality of place the pole cooperation of pegging graft, the fixed block is with a plurality of extension bar fixed connection, back support body is provided with the locating part that is used for restricting the extension bar and breaks away from, the fixed block fretwork sets up, fixed block upper portion is provided with the concave groove of accomodating.

Through adopting above-mentioned technical scheme, extension portion can make the bracket increase length to can obtain bigger carrying capacity.

The utility model discloses further set up to: the fixed block is provided with a retracting edge.

Through adopting above-mentioned technical scheme, receive the setting of drawing the edge, can make things convenient for receiving of fixed block to draw.

The utility model discloses further set up to: the walking wheels are all universal wheels.

Through adopting above-mentioned technical scheme, the universal wheel can make the bracket have better degree of freedom in the walking process.

The utility model discloses further set up to: and all/part of the universal wheel is provided with a brake pad.

Through adopting above-mentioned technical scheme, the brake block can be so that when not needing the bracket fixed, the bracket can be fixed a position by the locking.

The utility model has the advantages of it is following:

firstly, materials are saved, and the device is more portable;

secondly, the degree of freedom in the walking process is high;

thirdly, the folding can be better carried out;

fourthly, the production cost is lower.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a schematic view of the fully open configuration of the present embodiment;

FIG. 3 is a schematic view showing the connection of the locking member of the present embodiment;

FIG. 4 is a schematic view of the fully folded structure of the present embodiment;

fig. 5 is another schematic structural view of the present embodiment when completely collapsed.

In the figure: 1. a pull rod; 1a, a telescopic rod; 1b, reinforcing blocks; 2. a front frame body; 2a, a recess; 2b, a rotating groove; 2b1, inclined plane; 2b2, fitting groove; 3. a rear frame body; 3a, folding grooves; 4. a locking member; 4a, a clamping groove; 4b, adapting the bulge; 5. placing a rod; 6. a traveling wheel; 7. a lengthening part; 7a, lengthening a rod; 7b, fixing blocks; 7b1, storage groove; 7b2, drawing and retracting edge; 8. reinforcing ribs; 9. the rotating shaft is fixed.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and examples.

In which like parts are designated by like reference numerals. It should be noted that the following description uses terms of orientation such as "front and back end," "left and right sides," "above," "below," and the like to refer to directions in the drawings, and the terms "bottom" and "top," "inner" and "outer" to refer to directions toward and away from, respectively, the geometric center of a particular component. In addition, the descriptions of "mounted on … …", "disposed on … …" and the like refer to two components having a certain connection and positional relationship, and do not refer to one component being on the upper surface of the other component. In the present invention, unless otherwise expressly specified or limited, the terms "assembled", "connected", and "connected", if any, are to be construed broadly, e.g., as meaning fixedly connected, detachably connected, or integrally connected; or may be a mechanical connection; the two elements can be directly connected or connected through an intermediate medium, and the two elements can be communicated with each other. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.

The utility model provides a collapsible bracket, as shown in fig. 1 and 4, including pull rod 1, preceding support body 2, back support body 3 set up in the front a plurality of poles of placing 5 between support body 2 and back support body 3, all be provided with walking wheel 6 on preceding support body 2 and the back support body 3, pull rod 1 sets up in the front on support body 2, and pull rod 1 in this embodiment is the flexible pull rod 1 of three section, and has two telescopic links 1a, is provided with reinforcing block 1b between two telescopic links 1 a. Referring to fig. 5, the front frame 2 is provided with a fixed shaft 9, and the pull rod 1 can rotate around the fixed shaft 9. The number of the placing rods 5 is three in the embodiment, and the three placing rods 5 can obtain enough bearing area under the condition of using less materials, so that a large amount of materials can be saved, and the production cost is reduced. Simultaneously, be provided with the groove 3a of folding up with pull rod 1 looks adaptation on the back support body 3 for the bracket is when accomodating the state, and the top of pull rod 1 can be held in the groove 3a department of folding up, has better effect of folding up, and the bracket overall design is stable, has better stability.

Referring to fig. 2 and 3, the sliding sleeve of the pull rod 1 is provided with a locking member 4, the locking member 4 is integrally arranged, the locking member 4 is provided with a clamping groove 4a, the clamping groove 4a can be matched with a placing rod 5 when the pull rod 1 is folded, and the front frame body 2 is provided with a rotating groove 2b matched with the locking member 4. The locking piece 4 of integrative setting can realize integrative locking and integrative unblock, and is specific, and locking piece 4 slides with two telescopic link 1a in this embodiment and is connected, can be fixed with the junction of two telescopic link 1a and preceding support body 2. The carriage can be used as a trolley when the locking member 4 locks the pull rod 1, and the carriage is preferably used in a way of being dragged to walk when the locking member 4 is unlocked.

The rotary groove 2b is opened toward the rear frame body 3, the rotary groove 2b is provided with an inclined surface 2b1, the inclined surface 2b1 is inclined downward toward the rear frame body 3, and the fixed rotary shaft 9 is arranged at the lower part of the rotary groove 2 b. The opening of rotating groove 2b towards after-frame body 3 can make things convenient for pull rod 1 to rotate, and the setting of inclined plane 2b1 can make pull rod 1 rotate the contained angle that flushes with inclined plane 2b1 at most, and is concrete, and the contained angle of inclined plane 2b1 and horizontal plane is 45 in this embodiment, but as long as set up the inclined plane 2b1 of an slope, just can realize adapting to the operating personnel's of different heights demand.

The locking piece 4 is provided with an adapting protrusion 4b, the rotating groove 2b is provided with an adapting groove 2b2, the adapting protrusion 4b is in inserting fit with the adapting recess 2a, and the locking piece 4 and the rotating groove 2b are adapted through the adapting protrusion 4b and the adapting groove 2b 2. The fitting protrusion 4b and the fitting groove 2b2 enable the locking member 4 to be firmly fixed at the rotation groove 2b, thereby achieving the fixation of the drawbar 1.

Referring to fig. 3, the front frame 2 is provided with a recess 2a, and the recess 2a can be matched with the locking groove 4a to release the locking member 4 from being matched with the rotating groove 2 b. Sunken 2a can make operating personnel's hand easily stretch into draw-in groove 4a department, makes things convenient for operating personnel to unblock retaining member 4.

Referring to fig. 2, an elongated portion 7 is provided at the rear frame body 3, and the elongated portion 7 enables the length of the carriage to be increased to enable a greater carrying capacity to be obtained. The extension part 7 comprises a plurality of extension rods 7a and a fixing block 7b, and the extension rods 7a are in inserted connection with the placing rods 5. It should be noted that, the number of the extension bar 7a and the number of the placing bars 5 may be different, in this embodiment, two extension bars 7a are provided, three placing bars 5 are provided, and the two extension bars 7a are respectively matched with the two extension bars 7a on two sides in an inserting manner. Fixed block 7b and two extension bar 7a fixed connection, back support body 3 is provided with the locating part that is used for restricting extension bar 7a and breaks away from, and the locating part here can spring buckle, spacing ring or other locating parts that can think of by other technical skill in the art, as long as can realize that restriction extension bar 7a breaks away from back support body 3, all can realize the utility model discloses the technical scheme that claims.

Referring to fig. 5, the fixing block 7b is hollow, and the hollow fixing block 7b is light in weight and consumes less material. A concave storage groove 7b1 is provided on the upper part of the fixed block 7b, and the storage groove 7b1 can store the hand-held part at the end of the pull rod 1. The fixing block 7b is provided with a drawing edge 7b 2. The arrangement of the retracting edge 7b2 can facilitate the retracting of the fixing block 7 b.

Preceding support body 2 and the equal fretwork setting of back support body 3 place pole 5 also fretwork setting, all be formed with the cavity after preceding support body 2 and the 3 fretwork settings of back support body, are provided with a plurality of reinforcement muscle 8 in the cavity. The fretwork sets up the quality that can make whole bracket on the one hand lighter, and is more light, and on the other hand also can practice thrift manufacturing cost. The reinforcing ribs 8 can reinforce the structural strength of the front frame body 2 and the rear frame body 3.

The walking wheels 6 are all universal wheels. The universal wheel can make the bracket have better degree of freedom in the walking process. The universal wheel is provided with a brake pad in whole/part. The brake pad enables the bracket to be locked into position when the bracket is not required to be fixed.

It is above only the utility model discloses a preferred embodiment, the utility model discloses a scope of protection does not only confine above-mentioned embodiment, the all belongs to the utility model discloses a technical scheme under the thinking all belongs to the utility model discloses a scope of protection. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A foldable tray, characterized in that: including pull rod (1), preceding support body (2), back support body (3) set up a plurality of poles (5) of placing between preceding support body (2) and back support body (3), preceding support body (2) with all be provided with walking wheel (6) on back support body (3), pull rod (1) sets up in the front on support body (2), be provided with fixed rotating shaft (9) on preceding support body (2), pull rod (1) can rotate around fixed rotating shaft (9), is provided with on back support body (3) with the receipts folding groove (3a) of pull rod (1) looks adaptation.

2. A foldable carriage as claimed in claim 1, wherein: preceding support body (2) with the equal fretwork of back support body (3) sets up, place pole (5) and also fretwork and set up, preceding support body (2) with all be formed with the cavity after back support body (3) fretwork sets up, be provided with a plurality of reinforcement muscle (8) in the cavity.

3. A foldable carriage as claimed in claim 1 or 2, characterised in that: pull rod (1) slide the cover and be equipped with retaining member (4), retaining member (4) an organic whole sets up, draw-in groove (4a) have been seted up in retaining member (4), draw-in groove (4a) can with place pole (5) looks adaptation when pull rod (1) is folded up, preceding support body (2) be provided with rotation groove (2b) of retaining member (4) looks adaptation.

4. A foldable carriage as claimed in claim 3, wherein: rotate groove (2b) and set up towards after support body (3) direction opening, it is provided with inclined plane (2b1) to rotate groove (2b), inclined plane (2b1) court after support body (3) slope sets up downwards, fixed pivot (9) set up in the lower part that rotates groove (2 b).

5. A foldable carriage as claimed in claim 3, wherein: retaining member (4) are provided with adaptation arch (4b), it is provided with adaptation recess (2b2) to rotate groove (2b), retaining member (4) with it cooperates through adaptation arch (4b) and adaptation recess (2b2) plug-in connection to rotate groove (2 b).

6. A foldable carriage as claimed in claim 3, wherein: be provided with on preceding support body (2) sunken (2a), sunken (2a) can make retaining member (4) remove with rotation groove (2b) looks adaptation with draw-in groove (4a) cooperation.

7. A foldable carriage as claimed in claim 1, wherein: rear frame body (3) department is provided with extension portion (7), extension portion (7) include a plurality of extension bar (7a) and a fixed block (7b), and is a plurality of extension bar (7a) and a plurality of place pole (5) cooperation of pegging graft, fixed block (7b) and a plurality of extension bar (7a) fixed connection, rear frame body (3) are provided with the locating part that is used for restricting extension bar (7a) and breaks away from, fixed block (7b) fretwork sets up, fixed block (7b) upper portion is provided with concave receipts groove (7b 1).

8. A foldable carriage, according to claim 7, characterized in that: the fixed block (7b) is provided with a retracting and pulling edge (7b 2).

9. A foldable carriage as claimed in claim 1, wherein: the walking wheels (6) are all universal wheels.

10. A foldable carriage, according to claim 9, characterized in that: and all/part of the universal wheel is provided with a brake pad.