CN213413914U

CN213413914U - Shrink handcart

Info

Publication number: CN213413914U
Application number: CN202020974424.9U
Authority: CN
Inventors: 邵先红
Original assignee: Linhai Lianfeng Arts & Crafts Co ltd
Current assignee: Linhai Lianfeng Arts & Crafts Co ltd
Priority date: 2020-06-01
Filing date: 2020-06-01
Publication date: 2021-06-11
Anticipated expiration: 2030-06-01

Abstract

The utility model provides a contraction handcart, which comprises an adjusting and connecting component, wherein the adjusting and connecting component comprises a connecting hollow frame, a first through pipe and a second through pipe which are respectively fixed at the left end and the right end of the connecting hollow frame, hollow pipes are respectively arranged inside the first through pipe and the second through pipe, a movable rod is arranged inside the hollow pipes, a rotating handle is arranged at the front end of the connecting hollow frame, a driving part is fixed at the rear end of the rotating handle, two locking rods with opposite directions are arranged at the upper end and the lower end of the driving part, the two locking rods are respectively arranged inside the connecting hollow frame and respectively extend out from the left end and the right end of the connecting hollow frame, the extending ends of the two locking rods respectively pass through the side ends of the first through pipe and the second through pipe and respectively pass through the side ends of the corresponding hollow pipes and are attached to the annular outer end surface of the movable rod, a spring, the use flexibility is improved, and the use comfort is high.

Description

Shrink handcart

Technical Field

The utility model relates to a shrink handcart belongs to handcart technical field.

Background

In the life of house, often need purchase article such as vegetables, the article quantity that need purchase is more sometimes, and weight is great, only carries the dress through the plastic bag, is difficult to carry move, has a small handcart with the sack in the existing market, is convenient for transport article from the shop to at home.

However, the height of the handle bar of the existing small cart cannot be adjusted, and for users with different heights, some users feel too high, some users feel too low, the use comfort level is low, the height of the handle bar cannot be adjusted according to the heights of different users, and the use flexibility is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a shrink handcart to solve the handlebar stem height of the small handcart that proposes among the above-mentioned background art and can not adjust, use comfort is low, uses the poor problem of flexibility, the utility model discloses be convenient for highly adjust the handlebar stem, improved the use flexibility, and use comfort is high.

In order to achieve the above purpose, the present invention is realized by the following technical solution: the utility model provides a shrink handcart, includes the handle bar and removes the wheel carrier, coupling assembling is adjusted in the installation of handle bar lower extreme, it installs in removing the wheel carrier upper end to adjust coupling assembling, adjust coupling assembling including connecting hollow frame and fixing first siphunculus and the second siphunculus at both ends about connecting hollow frame respectively, first siphunculus and second siphunculus are inside all to be equipped with the hollow tube, hollow tube inside is equipped with movable rod and extends from the hollow tube upper end, connect hollow frame front end installation turning handle, the turning handle rear end is passed and is connected hollow frame front end and fixed driving piece and establish inside connecting hollow frame, two locking levers opposite in orientation are installed at both ends about the driving piece, two the locking lever is all established and is connected hollow frame inside and extend from left end and the right-hand member of connecting hollow frame respectively, two the end that the extension end of locking lever passed first siphunculus and second siphunculus The side just laminates with the outer terminal surface of movable rod annular, the locking lever is fixed spring between the one end of movable rod back to the back and the hollow frame inner wall of relative connection, two the movable rod is all installed at handle bar lower extreme, two the hollow tube is all fixed in removal wheel carrier upper end.

Furthermore, the upper end faces of the two hollow pipes are flush with the upper end faces of the first through pipe and the second through pipe respectively, and the two hollow pipes are moved out of the first through pipe and the second through pipe respectively.

Furthermore, a first through groove is formed in the positions, corresponding to the locking rods, of the left end and the right end of the connecting hollow frame, a second through groove is formed in the positions, corresponding to the locking rods, of the right end and the left end of the first through pipe and the second through pipe, a third through groove is formed in the side walls of the two hollow pipes, and the locking rods penetrate through the first through groove, the second through groove and the third through groove.

Furthermore, a guide hole is formed in the end face of the locking rod, where the spring is installed, a guide rod is arranged inside the guide hole, the guide rod extends out of the guide groove, one end of the guide rod, which extends out of the guide groove, is fixedly connected with the inner wall of the connecting hollow frame, and the spring is sleeved at the annular outer end of the guide rod.

Furthermore, the driving part comprises a circular wheel which is fixed at the rear end of the rotating handle and is coaxial with the rotating handle, the annular outer end of the circular wheel is provided with a fixed gear, the upper end and the lower end of the circular wheel are respectively meshed with two racks, and the two racks are respectively fixed at one end, opposite to the two locking rods.

Furthermore, the middle position of the lower end of the hollow connecting frame is fixedly provided with an inserting frame, the front end of the rotating handle is fixedly provided with a horizontally arranged transverse plate, the right position of the front end of the transverse plate is provided with a first groove, the right end of the transverse plate is provided with a second groove, the second groove is communicated with the first groove, the front end of the transverse plate is provided with a push plate, an inserting block is arranged in the second groove, the inserting block is fixedly connected with the push plate through a connecting plate, and the connecting plate is arranged in the first groove.

The utility model has the advantages that: through rotating the turning handle, it rotates to drive the round wheel, thereby drive gear revolve, so the rack through horizontal migration drives two locking levers and removes towards compression spring's direction, make the locking lever shift out from the hollow tube and no longer extrude the movable rod, remove the locking of hollow tube and movable rod, be convenient for to the altitude mixture control of movable rod and handle bar, adjust the completion back, can turn back turning handle to initial position, the locking lever locks hollow tube and movable rod, the not personnel of different heights of being convenient for use of handle bar, use the flexibility height.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

fig. 1 is a front view of a retractable trolley according to the present invention;

fig. 2 is a side view of a collapsible cart according to the present invention;

fig. 3 is a schematic view of an adjusting and connecting assembly of the retractable trolley of the present invention;

FIG. 4 is a cross-sectional view of FIG. 3;

FIG. 5 is a schematic view of a drive member of the retractable cart of the present invention;

fig. 6 is a schematic view of the horizontal plate of the retractable trolley.

In the figure: 1-handle bar, 2-adjusting connecting assembly, 3-moving wheel carrier, 21-first through pipe, 22-connecting hollow frame, 23-locking rod, 24-guide rod, 25-spring, 26-second through pipe, 27-driving piece, 28-hollow pipe, 29-movable rod, 30-turning handle, 31-inserting frame, 271-rack, 272-gear, 273-round wheel, 301-first groove, 302-inserting block, 303-second groove, 304-connecting plate and 305-push plate.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Example 1: referring to fig. 1 to 5, a retractable trolley includes a handle bar 1 and a movable wheel frame 3, an adjusting connection assembly 2 is installed at the lower end of the handle bar 1, the adjusting connection assembly 2 is installed at the upper end of the movable wheel frame 3, the movable wheel frame 3 is connected with the handle bar 1 by the adjusting connection assembly 2, and the distance between the handle bar 1 and the movable wheel frame 3 can be adjusted by the adjusting connection assembly 2.

The adjusting and connecting assembly 2 comprises a connecting hollow frame 22, and a first through pipe 21 and a second through pipe 26 respectively fixed at the left end and the right end of the connecting hollow frame 22, hollow pipes 28 are arranged in the first through pipe 21 and the second through pipe 26, a movable rod 29 is arranged in the hollow pipe 28, the movable rod 29 extends out from the upper end of the hollow pipe 28, a rotating handle 30 is arranged at the front end of the connecting hollow frame 22, the rear end of the rotating handle 30 penetrates through the front end of the connecting hollow frame 22 and fixes a driving piece 27, the driving piece 27 is arranged in the connecting hollow frame 22, two locking rods 23 with opposite directions are arranged at the upper end and the lower end of the driving piece 27, the two locking rods 23 are arranged in the connecting hollow frame 22 and respectively extend out from the left end and the right end of the connecting hollow frame 22, the extending ends of the two locking rods 23 respectively penetrate through the side ends of the first through pipe 21 and the second through pipe, a spring 25 is fixed between one end of a locking rod 23, opposite to a movable rod 29, and the inner wall of the hollow frame 22, opposite to the movable rod 29, the two movable rods 29 are both installed at the lower end of the handle rod 1, two hollow pipes 28 are both fixed at the upper end of the movable wheel frame 3, a driving piece 27 is driven to rotate by rotating a rotating handle 30, so that the two locking rods 23 are driven to move towards the direction of the compression spring 25, the locking rods 23 are moved out of the hollow pipes 28 and do not extrude the movable rods 29 any more, the locking between the hollow pipes 28 and the movable rods 29 is released, then the movable rods 29 can be moved up and down through the handle rod 1, and.

The upper end surfaces of the two hollow pipes 28 are flush with the upper end surfaces of the first through pipe 21 and the second through pipe 26, and the two hollow pipes 28 are moved out of the first through pipe 21 and the second through pipe 26 respectively, so that the hollow pipes 28, the first through pipe 21 and the second through pipe 26 are positioned and installed.

Connect hollow frame 22 left end and right-hand member and locking lever 23 and correspond the position and all set up first logical groove, first siphunculus 21 and second siphunculus 26 right-hand member and left end all set up the second logical groove with locking lever 23 corresponds the position, all set up the third on two hollow tube 28 lateral walls and lead to the groove, locking lever 23 runs through first logical groove, second logical groove and third logical groove, the removal of the locking lever 23 of being convenient for.

The end face of the locking rod 23, provided with the spring 25, is provided with a guide hole, a guide rod 24 is arranged in the guide hole, the guide rod 24 extends out of the guide groove, one end of the guide rod extending out of the guide groove is fixedly connected with the inner wall of the hollow frame 22, the spring 25 is sleeved at the annular outer end of the guide rod 24, the locking rod 23 is guided through the guide rod 24, and the spring 25 is convenient to support.

The driving member 27 includes a circular wheel 273 fixed at the rear end of the rotating handle 30 and coaxial with the rotating handle 30, a circular outer end fixed gear 272 of the circular wheel 273, the upper and lower ends of the circular wheel 273 are respectively engaged with two racks 271, the two racks 271 are respectively fixed at the opposite ends of the two locking rods 23, the circular wheel 273 is driven to rotate by rotating the rotating handle 30, so as to drive the gear 272 to rotate, and because the gear 272 is installed in engagement with the racks 271, the two racks 271 are driven to move horizontally, and then the two locking rods 23 are driven to move.

Working principle of example 1: one hand of a person rotates the rotating handle 30 to drive the circular wheel 273 to rotate, so as to drive the gear 272 to rotate, due to the meshed installation of the gear 272 and the rack 271, the two racks 271 are driven to move horizontally, and further the two locking rods 23 are driven to move towards the direction of compressing the spring 25, the spring 25 generates elastic force, so that the locking rods 23 are moved out of the hollow tube 28 and do not extrude the movable rods 29 any more, the locking between the hollow tube 28 and the movable rods 29 is released, then the other hand of the person can hold and move the handle bar 1 up and down, so as to drive the movable rods 29 to move up and down, when the handle bar 1 is adjusted to a required height, the person loosens the rotating handle 30, the locking rods 23 move towards the corresponding movable rods 29 under the elastic force of the spring 25 until the locking rods contact and fit with the movable rods 29, so as to press the movable rods 29 inside the hollow tube 28, the height of the handle rod 1 can be adjusted, and the handle rod is suitable for people with various heights.

In embodiment 2, referring to fig. 6, an insertion frame 31 is fixed at a middle position of a lower end of a connecting hollow frame 22, a horizontal plate 300 is fixed at a front end of a rotating handle 30, a first groove 301 is formed at a right position of a front end of the horizontal plate 300, a second groove 303 is formed at a right end of the horizontal plate 300 and is communicated with the first groove 301, a push plate 305 is installed at a front end of the horizontal plate 300, an insertion block 302 is arranged inside the second groove 303 and is fixedly connected with the insertion block 302 and the push plate 305 through a connecting plate 304, the connecting plate 304 is arranged inside the first groove 301, when the horizontal plate 300 is rotated from a horizontal state to a vertical state, a locking rod 23 is separated from a movable rod 29 to realize unlocking, at this time, the insertion block 302 is aligned with a slot hole inside the insertion frame 31, the push plate 305 is pushed downward to drive the insertion block 302 to be inserted into the insertion frame 31 downward to realize locking of the vertical plate 300, and then, and the rotating handle 30 is still kept in a vertical state and is continuously kept in a state of unlocking, so that the convenience of adjusting the height of the handle rod 1 is improved.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a shrink handcart, includes handle bar (1) and removes wheel carrier (3), its characterized in that: the lower end of the handle rod (1) is provided with an adjusting and connecting assembly (2), and the adjusting and connecting assembly (2) is arranged at the upper end of the movable wheel carrier (3);

adjusting connection subassembly (2) including connecting hollow frame (22) and fixing first siphunculus (21) and second siphunculus (26) at the both ends about connecting hollow frame (22) respectively, first siphunculus (21) and second siphunculus (26) are inside all to be equipped with hollow tube (28), hollow tube (28) are inside to be equipped with movable rod (29) and to extend from hollow tube (28) upper end, connect hollow frame (22) front end installation turning handle (30), turning handle (30) rear end is passed and is connected hollow frame (22) front end and fixed driving piece (27) and establish inside connecting hollow frame (22), two locking lever (23) opposite in orientation are installed at both ends about driving piece (27), two locking lever (23) are all established and are connected hollow frame (22) inside and are extended from the left end and the right-hand member of connecting hollow frame (22) respectively, two the end that extends of locking lever (23) passes the side of first siphunculus (21) and second siphunculus (26) respectively and runs through the side that corresponds hollow tube (28) and with the laminating of the outer terminal surface of movable rod (29) annular, fixed spring (25), two between the one end of locking lever (23) back to the back movable rod (29) and the hollow frame (22) inner wall of relative connection, movable rod (29) are all installed at handle bar (1) lower extreme, two hollow tube (28) are all fixed in removal wheel carrier (3) upper end.

2. A retrieval cart as recited in claim 1, wherein: the upper end surfaces of the two hollow pipes (28) are flush with the upper end surfaces of the first through pipe (21) and the second through pipe (26) respectively, and the two hollow pipes (28) are moved out of the first through pipe (21) and the second through pipe (26) respectively.

3. A retrieval cart as recited in claim 1, wherein: connect hollow frame (22) left end and right-hand member and locking lever (23) corresponding position and all set up first logical groove, first siphunculus (21) and second siphunculus (26) right-hand member and left end all set up the second in logical groove with locking lever (23) corresponding position, two all set up the third in logical groove on hollow tube (28) lateral wall, first logical groove, second in logical groove and third in logical groove are run through in locking lever (23).

4. A retrieval cart as recited in claim 1, wherein: the end face of the locking rod (23) provided with the spring (25) is provided with a guide hole, a guide rod (24) is arranged in the guide hole, the guide rod (24) extends out of the guide groove, one end of the guide rod extending out of the guide groove is fixedly connected with the inner wall of the hollow frame (22), and the spring (25) is sleeved at the annular outer end of the guide rod (24).

5. A retrieval cart as recited in claim 1, wherein: the driving piece (27) comprises a circular wheel (273) which is fixed at the rear end of the rotating handle (30) and coaxial with the rotating handle (30), the annular outer end of the circular wheel (273) is provided with a fixed gear (272), the upper end and the lower end of the circular wheel (273) are respectively meshed with two racks (271), and the two racks (271) are respectively fixed at one end, opposite to the two locking rods (23).

6. A retrieval cart as recited in claim 1, wherein: connect hollow frame (22) lower extreme intermediate position fixed frame (31) of inserting, diaphragm (300) that the fixed level in turning handle (30) front end set up, first recess (301) are seted up to diaphragm (300) front end right position, second recess (303) and first recess (301) intercommunication are seted up to diaphragm (300) right-hand member, diaphragm (300) front end installation push pedal (305), pass through connecting plate (304) fixed connection between inside being equipped with inserted block (302) of second recess (303) and inserted block (302) and push pedal (305), establish inside first recess (301) connecting plate (304).