CN209972546U

CN209972546U - Folding handcart

Info

Publication number: CN209972546U
Application number: CN201920343582.1U
Authority: CN
Inventors: 程伟江
Original assignee: Yongkang City Zhejiang Province Su Kedi Trade Co Ltd
Current assignee: Yongkang City Zhejiang Province Su Kedi Trade Co Ltd
Priority date: 2019-01-27
Filing date: 2019-03-18
Publication date: 2020-01-21
Anticipated expiration: 2029-03-18
Also published as: CN209972547U; CN209888909U; CN109808760A

Abstract

The utility model belongs to the technical field of a trolley, in particular to a folding trolley, which comprises a trolley main body, wherein the main body comprises a rear foot tube, a front foot tube and a seat; the utility model discloses a folding mechanism is used for controlling folding between back foot pipe and the preceding foot pipe and is used for controlling the seat towards the rotation of back foot pipe or preceding foot pipe one side, the utility model discloses an use and rotate the piece and connect preceding foot pipe respectively, seat and back foot pipe, when pressing the upper end of unblock button, can fold the operation to the seat, when pressing the lower extreme of unblock button, can fold the operation to preceding foot pipe, through pressing different positions on a button, can realize the folding operation of two parts of seat and preceding foot pipe to make the folding operation of shallow very simple and convenient, need not to go again to press the folding switch of two different positions.

Description

Folding handcart

Technical Field

The utility model relates to a handcart technical field refers in particular to a folding handcart.

Background

The child stroller can be used for an infant to sit, so that parents do not need to hold the child, a seat unlocking device for unlocking the seat locking mechanism and a rear foot unlocking device for unlocking the rear foot locking mechanism are arranged on the child stroller, and the two unlocking devices are two devices which are separately arranged. When the stroller is folded, the seat unlocking mechanism and the rear foot unlocking mechanism are operated twice, so that the seat locking mechanism and the rear foot locking mechanism can be unlocked, and the seat and the rear foot rotate relative to the front foot pipe to be folded.

It is very laborious for a parent holding a child to press the folding buttons at two different positions.

Disclosure of Invention

The utility model aims at providing a folding handcart, thereby solve a plurality of receipts and fold the button and lead to the inconvenient problem of operation through folding mechanism.

The purpose of the utility model is realized like this: a folding handcart comprises a handcart main body, a folding handcart body and a folding handcart body, wherein the main body comprises a rear foot tube, a front foot tube and a seat; folding mechanisms are arranged among the rear foot tube, the front foot tube and the seat, and are used for controlling the folding between the rear foot tube and the front foot tube and controlling the seat to rotate towards one side of the rear foot tube or the front foot tube; an unlocking button is installed in the folding mechanism, the upper end of the unlocking button is pressed, and the seat and the rear foot tube can rotate relatively; the lower end of the unlocking button is pressed, and the front pin tube and the rear pin tube can rotate relatively; an upper convex block is formed below the upper end of the unlocking button, and a first round shaft used for limiting the relative rotation between the seat and the rear foot tube is arranged below the upper convex block; a lower lug is formed below the lower end of the unlocking button, and a second round shaft used for limiting the relative rotation between the rear foot tube and the front foot tube is arranged below the lower lug.

Preferably, the folding mechanism is provided with a limiting cover, the limiting cover is provided with a first limiting hole, and one end of the first circular shaft, corresponding to the upper bump, penetrates through the first limiting hole and forms a first pressing part.

Preferably, a first arc-shaped groove is formed in the folding mechanism, the lower end of the seat is connected with a first rotating portion, the first rotating portion is internally provided with the first round shaft in a penetrating mode and slides in the first arc-shaped groove, the other end of the first round shaft is connected with a first spring in a supporting mode, the first pressing portion is pressed to compress the first spring, and the first round shaft is separated from the first limiting hole.

Preferably, a first bearing is fixed in the limiting cover, a first sliding shaft is arranged in the first bearing, one end of the first sliding shaft transversely penetrates through the first limiting hole, a second spring is arranged in the first arc-shaped groove, the second spring abuts between a first round shaft and one end face of the first arc-shaped groove, a first abutting piece is further arranged between the first round shaft and the second spring, the first abutting piece is fixed on the first rotating portion, and the second spring is compressed when the first rotating portion rotates.

Preferably, the folding mechanism is provided with a limiting cover, the limiting cover is further provided with a second limiting hole, and one end of the second circular shaft, corresponding to the lower bump, penetrates through the second limiting hole and forms a second pressing part.

Preferably, a second arc-shaped groove is formed in the folding mechanism, a second rotating portion is arranged at the upper end of the front foot tube, a second round shaft penetrates through the second rotating portion, the second round shaft slides in the second arc-shaped groove, a third spring is abutted to the other end of the second round shaft, the third spring can be compressed by pressing the second pressing portion, and the second round shaft is separated from the second limiting hole.

Preferably, a second bearing is fixed in the limit cover, a second sliding shaft is arranged in the second bearing, one end of the second sliding shaft transversely penetrates through the second limit hole, a fourth spring is arranged in the second arc-shaped groove, the fourth spring is abutted between the second circular shaft and one end face of the second arc-shaped groove, a second abutting piece is further arranged between the second circular shaft and the fourth spring, the second abutting piece is fixed on the second rotating part, and the fourth spring is compressed when the second rotating part rotates; the seat and/or the front foot tube is/are provided with a rotating armrest, the rotating armrest is provided with an unlocking switch for controlling the rotation of the rotation limiting piece, the middle part of the rotating armrest is connected with a rotating shaft, the periphery of the rotating shaft is slidably sleeved with the rotation limiting piece, one side of the rotation limiting piece is provided with a rotation limiting part, the end surface corresponding to the rotating shaft is provided with a rotation limiting sleeve for the rotation limiting part to be clamped in, the other side of the rotation limiting piece and the end surface corresponding to the rotating shaft are abutted with a fifth spring, and the unlocking switch is fixed on the surface of the rotation limiting piece; install the protecting cover on the folding mechanism, set up the recess with disk looks adaptation in the protecting cover, the middle-end shaping of unblock button has the disk, but unblock button passes through the disk luffing motion and installs in the recess, folding mechanism's upper end is provided with first rotation district and second rotation district respectively, the lower extreme of seat passes through the rotatable setting of first fastener in first rotation district, the upper end of front foot pipe passes through the rotatable setting of second fastener in the second rotation district.

Compared with the prior art, the utility model outstanding and profitable technological effect is:

1. the utility model discloses an use folding mechanism to connect front foot pipe, seat and back foot pipe respectively, when pressing the upper end of unblock button, can receive the seat and fold the operation, when pressing the lower extreme of unblock button, can receive the foot pipe of seat and fold the operation, through pressing different positions on a button, can realize the receipts of seat and two parts of foot pipe and fold the operation to make the receipts of shallow fold the operation very portably, need not to go again to press the folding switch of two different positions.

Drawings

Fig. 1 is a schematic perspective view of the present invention.

Fig. 2 is an exploded view of the folding device of the present invention.

Fig. 3 is a schematic structural view of the folding device without the protective cover and the limiting cover.

Figure 4 is a schematic view of the folding device without the protective cover attached.

Fig. 5 is a schematic structural view of the unlock button and the round block.

Fig. 6 is a front view of the present invention.

Fig. 7 is a cross-sectional view of the structure at a-a in fig. 6.

Fig. 8 is an enlarged view of the structure at D in fig. 7.

Fig. 9 is a cross-sectional view of the structure at C-C in fig. 6.

Fig. 10 is a sectional view of the structure at B-B in fig. 6.

Fig. 11 is an exploded view of a rotating armrest on a seat.

Figure 12 is an exploded view of the rotating armrest on the front leg.

Reference numerals: 1-front foot tube; 2-rear foot tube; 3-a seat; 4-rear wheel; 5-front wheels; 6-a folding mechanism; 7-an unlock button; 8-a first rotation zone; 9-a second rotation zone; 10-a first fastener; 11-a second fastener;

12-a first arc-shaped slot; 13-a first rotating part; 14-a first circular shaft; 15-a limit cover; 16-a first limiting hole; 17-a first pressing portion; 18-upper bumps; 19-a first spring; 20-a first bearing; 21-a first sliding shaft; 22-a second spring; 23-a first abutment;

24-a second arcuate slot; 25-a second rotating part; 26-a second circular shaft; 27-a second limit hole; 28-a second pressing part; 29-lower bump; 30-a third spring; 31-a second sliding shaft; 32-a fourth spring; 33-a second abutment; 34-a second bearing;

35-turning the armrest; 36-an unlock switch; 37-a rotating shaft; 38-rotation limiting member; 39-rotation limiting part; 40-rotation limiting sleeve; 41-fifth spring; 42-round block; 43-grooves; 44-a protective cover; 45-rotation limiting jacket.

Detailed Description

The following description of the present invention will be made in detail with reference to the accompanying drawings 1 to 12.

A folding handcart.

As shown in fig. 1, the cart main body includes a rear foot tube 2, a front foot tube 1, and a seat 3; a folding mechanism 6 is arranged among the rear foot tube 2, the front foot tube 1 and the seat 3, the folding mechanism 6 is used for controlling the folding between the rear foot tube 2 and the front foot tube 1 and controlling the seat 3 to rotate towards one side of the rear foot tube 2 or the front foot tube 1, the seat 3 and the front foot tube 1 are both provided with a rotating armrest 35, the lower end of the rear foot tube 2 is provided with a rear wheel 4, the lower end of the front foot tube 1 is provided with a front wheel 5, an unlocking button 7 is arranged in the folding mechanism 6, and the seat 3 and the rear foot tube 2 can rotate relatively by pressing the upper end of the unlocking button 7; by pressing the lower end of the unlocking button 7, the front foot tube 1 and the rear foot tube 2 can rotate relatively.

Specifically referring to fig. 2, the upper end of the folding mechanism 6 is respectively provided with a first rotating area 8 and a second rotating area 9, the lower end of the seat 3 is rotatably disposed in the first rotating area 8 through a first fastener 10, the upper end of the front leg tube 1 is rotatably disposed in the second rotating area 9 through a second fastener 11, and the first fastener 10 and the second fastener 11 both adopt bolts in the technical scheme.

With reference to fig. 3 and 4, a first arc-shaped groove 12 is formed in the first rotating area 8, a first rotating portion 13 is connected to the lower end of the seat 3, a first circular shaft 14 penetrates through the first rotating portion 13, and the first circular shaft 14 limits sliding in the first arc-shaped groove 12; a second arc-shaped groove 24 is formed in the second rotating area 9, a second rotating portion 25 is arranged at the upper end of the front leg tube 1, a second round shaft 26 penetrates through the second rotating portion 25, and the second round shaft 26 limits sliding in the second arc-shaped groove 24.

Referring to fig. 2 and 8, a limiting cover 15 is installed on the folding mechanism 6, a first limiting hole 16 and a second limiting hole 27 are respectively formed on the limiting cover 15, one end of the first round shaft 14 passes through the first limiting hole 16 and forms a first pressing portion 17, one end of the second round shaft 26 passes through the second limiting hole 27 and forms a second pressing portion 28, an upper convex block 18 is formed below the upper end of the unlocking button 7, the upper convex block 18 corresponds to the first pressing portion 17, a lower convex block 29 is formed below the lower end of the unlocking button 7, the lower convex block 29 corresponds to the second pressing portion 28, the other end of the first round shaft 14 is abutted with a first spring 19, the first pressing portion 17 is pressed to compress the first spring 19 and separate the first round shaft 14 from the first limiting hole 16, the other end of the second round shaft 26 is abutted with a third spring 30, and the second pressing portion 28 is pressed to compress the third spring 30, and the second round shaft 26 is disengaged from the second stopper hole 27.

Referring to fig. 3 and 4, a first bearing 20 is fixed in the limiting cover 15, a first sliding shaft 21 is arranged in the first bearing 20, one end of the first sliding shaft 21 transversely penetrates the first limiting hole 16, a second bearing 34 is fixed in the limiting cover 15, a second sliding shaft 31 is arranged in the second bearing 34, one end of the second sliding shaft 31 transversely penetrates the second limiting hole 27, a second spring 22 is arranged in the first arc-shaped groove 12, the second spring 22 abuts between the first circular shaft 14 and one end face of the first arc-shaped groove 12, a fourth spring 32 is arranged in the second arc-shaped groove 24, the fourth spring 32 abuts between the second circular shaft 26 and one end face of the second arc-shaped groove 24, a first abutting piece 23 is further arranged between the first circular shaft 14 and the second spring 22, the first abutting piece 23 is fixed on the first rotating portion 13, when the first rotating portion 13 rotates, the second spring 22 will be compressed, a second abutting piece 33 is further arranged between the second round shaft 26 and the fourth spring 32, the second abutting piece 33 is fixed on the second rotating part 25, and the fourth spring 32 will be compressed when the second rotating part 25 rotates.

Combine fig. 9 and 11, for the structure of the last handrail 35 that rotates of seat 3, be provided with on the rotation handrail 35 and be used for restricting its pivoted unblock switch 36, the middle part shaping of rotation handrail 35 has axis of rotation 37, and the outer periphery slidable cover of axis of rotation 37 is established and is had a limited commentaries on classics 38, and the outer periphery cover of limited commentaries on classics 38 is established and is had a limited commentaries on classics overcoat 45, and the limited commentaries on classics portion 39 of one side shaping of limited commentaries on classics 38, the confession has been seted up to the terminal surface that axis of rotation 37 corresponds the limited commentaries on classics cover 40 that the portion 39 was gone into, the opposite side of limited commentaries on classics 38 with the terminal surface butt that axis of rotation.

Combine fig. 10 and 12, for the structure that rotates handrail 35 on the front foot pipe 1 is the same with the structure that rotates handrail 35 on the seat 3, it is used for restricting its pivoted unblock switch 36 to rotate to be provided with on the handrail 35, the middle part shaping that rotates handrail 35 has axis of rotation 37, the outer slidable cover of axis of rotation 37 is established and is had a limited commentaries on classics piece 38, and limited commentaries on classics overcoat 45 is established to the outer cover of limited commentaries on classics piece 38, and one side shaping limited commentaries on classics portion 39 of limited commentaries on classics piece 38, the confession has been seted up to the terminal surface that axis of rotation 37 corresponds limited commentaries on classics cover 40 that limited commentaries on classics portion 39 blocks into, the opposite side of limited commentaries on classics piece 38 with the terminal surface that axis.

Specifically referring to fig. 5, a round block 42 is formed at the middle end of the unlocking button 7, a protecting cover 44 is installed on the folding mechanism 6, a groove 43 matched with the round block 42 is formed in the protecting cover 44, and the unlocking button 7 is installed in the groove 43 in a manner that the round block 42 can swing up and down.

The specific working principle of the scheme is as follows:

the folding between the front leg tube 1 and the rear leg tube 2: the unlocking button 7 is rotatably arranged in the groove 43 through the round block 42 at the middle end part, so when the lower end of the unlocking button 7 is pressed, the lower convex block 29 at the lower part is pushed downwards, the second round shaft 26 is pushed inwards, the second round shaft 26 is separated from the second limiting hole 27 at the moment, the third spring 30 is compressed, one end of the second round shaft 26 is abutted against the third spring 30, the other end of the second round shaft 26 is abutted against the arc-shaped groove arranged on the inner wall of the limiting cover 15, the front foot tube 1 and the rear foot tube 2 can be relatively rotated and folded, meanwhile, due to the stretching tension (in the compressed state) of the fourth spring 32, the foot tubes can be driven to rotate, the rotation between the two is more labor-saving, the second sliding shaft 31 can rotate, when the second round shaft 26 enters or exits the second limiting hole 27, the second sliding shaft 31 can slide from the surface, the trolley can enter or exit the limiting hole more easily, when the trolley needs to be unfolded, the front foot tube 1 and the rear foot tube 2 are rotated manually, and when the second round shaft 26 reaches the second limiting hole 27, the compressed third spring 30 can be unfolded and can eject the second round shaft 26 into the second limiting hole 27, so that automatic locking is realized.

Folding between seat 3 and back leg tube 2: the unlocking button 7 is rotatably arranged in the groove 43 through the round block 42 at the middle end part, so when the upper end of the unlocking button 7 is pressed, the upper convex block 18 at the lower part is pushed downwards, the first round shaft 14 is pushed inwards, the first round shaft 14 is separated from the first limit hole 16 at the moment, the first spring 19 is compressed, one end of the first round shaft 14 is abutted against the first spring 19 at the moment, the other end of the first round shaft 14 is abutted against the arc-shaped groove arranged on the inner wall of the limit cover 15, the seat 3 and the rear foot tube 2 can be relatively rotatably folded, meanwhile, due to the extending tension (in the compressed state) of the second spring 22, the seat 3 can be driven to rotate, so that the rotation between the two is more labor-saving, the first sliding shaft 21 can rotate, when the first round shaft 14 enters or exits the first limit hole 16, the first sliding shaft 21 slides over the surface, the limiting hole is easier to enter or exit, when the trolley needs to be unfolded, the seat 3 and the rear foot tube 2 are manually rotated, and when the first round shaft 14 reaches the first limiting hole 16, the compressed first spring 19 can be unfolded and can eject the first round shaft 14 into the first limiting hole 16, so that automatic locking is realized.

Folding of the rotary armrest: the unlocking switch 26 is pushed to one side, the unlocking switch 26 drives the rotation limiting piece 38 and compresses the fifth spring 41, the rotation limiting portion 39 leaves the rotation limiting sleeve 40, the rotation armrest can rotate at the moment, the unlocking switch 26 is loosened, the fifth spring 41 enables the rotation limiting piece 38 to rebound to the original position, and therefore automatic locking is achieved.

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 understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A folding trolley comprising a trolley body, characterised in that the body comprises a rear foot tube (2), a front foot tube (1) and a seat (3); a folding mechanism (6) is arranged among the rear foot tube (2), the front foot tube (1) and the seat (3), and the folding mechanism (6) is used for controlling the folding between the rear foot tube (2) and the front foot tube (1) and controlling the rotation of the seat (3) towards one side of the rear foot tube (2) or the front foot tube (1); an unlocking button (7) is installed in the folding mechanism (6), the upper end of the unlocking button (7) is pressed, and the seat (3) and the rear foot tube (2) can rotate relatively; the lower end of an unlocking button (7) is pressed, and the front foot tube (1) and the rear foot tube (2) can rotate relatively; an upper convex block (18) is formed below the upper end of the unlocking button (7), and a first round shaft (14) used for limiting the relative rotation between the seat (3) and the rear foot tube (2) is arranged below the upper convex block (18); a lower lug (29) is formed below the lower end of the unlocking button (7), and a second round shaft (26) used for limiting the relative rotation between the rear foot pipe (2) and the front foot pipe (1) is arranged below the lower lug (29).

2. A folding trolley according to claim 1, characterized in that: the folding mechanism (6) is provided with a limiting cover (15), the limiting cover (15) is provided with a first limiting hole (16), and one end, corresponding to the upper lug (18), of the first round shaft (14) penetrates through the first limiting hole (16) and forms a first pressing part (17).

3. A folding trolley according to claim 2, characterized in that: be provided with first arc wall (12) in folding mechanism (6), the lower extreme of seat (3) is connected with first rotation portion (13), wears to be equipped with in first rotation portion (13) first round axle (14), and slide in first arc wall (12), the other end butt of first round axle (14) has connect first spring (19), presses first according to splenium (17) and can compress first spring (19) to make first round axle (14) break away from first spacing hole (16).

4. A folding cart according to claim 3, wherein: spacing lid (15) internal fixation has first bearing (20), is provided with first sliding shaft (21) in first bearing (20), and the one end of first sliding shaft (21) transversely wears to establish in first spacing hole (16), install second spring (22) in first arc wall (12), second spring (22) butt is between the terminal surface of first round axle (14) and first arc wall (12), still be provided with first butt piece (23) between first round axle (14) and second spring (22), first butt piece (23) are fixed on first rotation portion (13), when first rotation portion (13) rotate, will compress second spring (22).

5. A folding trolley according to claim 1, characterized in that: install spacing lid (15) on folding mechanism (6), still seted up second spacing hole (27) on spacing lid (15), second spacing hole (27) are passed and second according to splenium (28) are formed to the one end that second round axle (26) correspond lug down (29).

6. A folding trolley according to claim 5, characterized in that: a second arc-shaped groove (24) is formed in the folding mechanism (6), a second rotating portion (25) is arranged at the upper end of the front foot tube (1), a second round shaft (26) penetrates through the second rotating portion (25), the second round shaft (26) slides in the second arc-shaped groove (24), a third spring (30) is abutted to the other end of the second round shaft (26), the second pressing portion (28) is pressed to compress the third spring (30), and the second round shaft (26) is separated from the second limiting hole (27).

7. A folding trolley according to claim 6, characterized in that: a second bearing (34) is fixed in the limiting cover (15), a second sliding shaft (31) is arranged in the second bearing (34), one end of the second sliding shaft (31) transversely penetrates through a second limiting hole (27), a fourth spring (32) is arranged in the second arc-shaped groove (24), the fourth spring (32) abuts between a second circular shaft (26) and one end face of the second arc-shaped groove (24), a second abutting piece (33) is further arranged between the second circular shaft (26) and the fourth spring (32), the second abutting piece (33) is fixed on the second rotating portion (25), and when the second rotating portion (25) rotates, the fourth spring (32) is compressed; the seat (3) and/or the front foot tube (1) are/is provided with a rotating armrest (35), the rotating armrest (35) is provided with an unlocking switch (36) used for controlling the rotation of the rotation limiting part (38), the middle part of the rotating armrest (35) is connected with a rotating shaft (37), the periphery of the rotating shaft (37) is slidably sleeved with the rotation limiting part (38), one side of the rotation limiting part (38) is provided with a rotation limiting part (39), the end face corresponding to the rotating shaft (37) is provided with a rotation limiting sleeve (40) for clamping the rotation limiting part (39), the other side of the rotation limiting part (38) and the end face corresponding to the rotating shaft (37) are abutted with a fifth spring (41), and the unlocking switch (36) is fixed on the surface of the rotation limiting part (38); install protecting cover (44) on folding mechanism (6), seted up recess (43) with disk (42) looks adaptation in protecting cover (44), the middle-end shaping of unblock button (7) has disk (42), but unblock button (7) are installed in recess (43) through disk (42) luffing motion, the upper end of folding mechanism (6) is provided with first rotation district (8) and second rotation district (9) respectively, the lower extreme of seat (3) is through the rotatable setting of first fastener (10) in first rotation district (8), the upper end of preceding foot pipe (1) is through the rotatable setting of second fastener (11) in second rotation district (9).