CN115071797A - Novel hand-pulling folding vehicle - Google Patents

Abstract

The invention discloses a novel hand-pulled folding vehicle, which comprises front and rear upright posts on the left and right sides, a front and rear X-shaped folding frame, first and second side folding frames, a folding base and front and rear wheels, wherein the front and rear upright posts on the left and right sides are correspondingly fixed with upper and lower hinged seats, the upper parts of the front and rear X-shaped folding frames are hinged on the upper hinged seats, the lower parts of the front and rear X-shaped folding frames are hinged on the lower hinged seats, the folding base comprises a main connecting rod, a main and auxiliary hinged seats, a front and rear base connecting rod, diagonal telescopic rods and pull rods, the main and auxiliary hinged seats are hinged at two ends of the main connecting rod, the front and rear base connecting rods are hinged on the main hinged seats and the lower hinged seats, the diagonal telescopic rods are hinged on the main hinged seats and the lower hinged seats, one end of the pull rod is hinged on the auxiliary hinged seats, and the other end of the pull rod is connected on the first side folding frame. After adopting above-mentioned structure, have that structural design is reasonable, folding easy operation, use reliable and stable, the loading capacity is big, folding small, goods loading and unloading and advantages such as convenient to carry.

Description

Novel hand-pulling folding vehicle

Technical Field

The invention relates to the technical field of hand buggy, in particular to a novel hand buggy which is fast to fold, small in size and convenient to carry.

Background

With the rapid development of outdoor camping in China, in order to facilitate field carrying of activities such as self-driving travel, suburb camping and the like, a plurality of consumers use the hand buggy as a carrying tool to directly put various articles on the hand buggy for dragging, the trouble that the consumers carry large bags and small bags on hand can be solved, and great convenience is brought to the consumers. However, the prior hand buggy on the market has the following problems in the use process: firstly, the existing folding hand buggy is limited by the shape and the volume, the placed goods are few, and the requirement of a consumer for storing articles can not be met. Secondly, the structure is unreasonable, the mechanical strength is low, the load capacity is small, the stability of the whole structure is poor, the use is unreliable, and the tractor can not adapt to field road dragging with poor road conditions. Thirdly, the goods are inconvenient to load and unload. In order to solve the problems, many manufacturers and acquaintances develop and trial-produce the products, but no ideal products are produced yet.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention aims to provide the novel hand-pulling folding vehicle which is reasonable in structural design, simple in folding operation, stable and reliable in use, large in load capacity, small in folding volume and convenient to load, unload and carry.

The invention provides a technical scheme for solving the technical problems, which comprises front and rear upright posts on the left and right sides, a front and rear X-shaped folding frame, a first side folding frame and a second side folding frame correspondingly connected between the front and rear upright posts on the left and right sides, a folding base, front and rear wheels, wherein upper and lower hinged seats are correspondingly fixed on the front and rear upright posts on the left and right sides, the upper parts of the front and rear X-shaped folding frames are correspondingly hinged on the upper hinged seats of the front and rear upright posts on the left and right sides through front and rear telescopic rods, the lower parts of the front and rear X-shaped folding frames are correspondingly hinged on the lower hinged seats of the front and rear upright posts on the left and right sides, the folding base comprises a main connecting rod, a main and auxiliary hinged seat, a front and rear base connecting rod, a diagonal telescopic rod and a pull rod, the main and auxiliary hinged seats are correspondingly hinged at two ends of the main connecting rod, the front and rear base connecting rod is correspondingly hinged on the lower hinged seats between the main hinged seat and the corresponding front and rear upright posts, the lower end of the pull rod is hinged on the auxiliary hinge seat, and the upper end of the pull rod is connected on the first side folding frame.

According to a further scheme of the invention, the first side folding frame comprises a front X fork rod and a rear X fork rod which are mutually connected in a cross mode, the front upper end of the front X fork rod is correspondingly hinged to an upper hinge seat of the front upright post, the front lower end of the front X fork rod is connected with the front upright post in a sliding mode through a fork rod sliding sleeve, the rear upper end of the rear X fork rod is correspondingly hinged to an upper hinge seat of the rear upright post, the rear lower end of the rear X fork rod is connected with the rear upright post in a sliding mode through a fork rod sliding sleeve, the rear upper end of the front X fork rod is hinged to the front upper end of the rear X fork rod through a pull rod sliding sleeve, the rear lower end of the front X fork rod and the front lower end of the rear X fork rod are hinged to a pull rod sliding sleeve, the pull rod sliding sleeve is sleeved on the pull rod in a sliding mode, a limiting portion for preventing the pull rod sliding sleeve from sliding upwards is arranged on the pull rod, and the front X fork rod and the rear X fork rod form a lifting structure with the front X fork rod and the rear X fork rod when the folding base bears the load.

According to the further scheme provided by the invention, the second side folding frame comprises a front connecting rod and a rear connecting rod, one end of the front connecting rod and one end of the rear connecting rod are correspondingly hinged on the upper hinge seats of the front upright post and the rear upright post, the other ends of the front connecting rod and the rear connecting rod are respectively connected on the quick-release joints, the front connecting rod and the rear connecting rod are correspondingly hinged on the front connecting rod and the rear connecting rod, and the other ends of the front connecting rod and the rear connecting rod are correspondingly connected on the front upright post and the rear upright post in a sliding manner through connecting rod sliding sleeves.

In a further scheme of the invention, the quick-release joint comprises a knob seat and a lock catch seat which are correspondingly fixed on the front connecting rod and the rear connecting rod, the lock catch seat is provided with a lock hole, the knob seat is provided with a locking knob matched with the lock hole, and the knob seat is detachably hinged on the lock catch seat through the locking knob.

In a further scheme of the invention, the hand-pulling folding vehicle further comprises a hand-pulling device, the hand-pulling device comprises a handle and a handle bracket, the handle bracket is correspondingly hinged on the lower hinge seats of the left and right front upright posts, and the length of the handle is connected to the handle bracket in an adjustable manner.

The invention further provides a scheme that the front and rear wheels are detachably and correspondingly arranged on the lower hinging seats of the front and rear upright posts on the left and right sides, the front and rear wheels are correspondingly provided with wheel carriers, wheel shafts are fixed on the wheel carriers, the wheel shafts are provided with wheel shaft rotating parts, the connecting parts of the lower hinging seats are provided with elastic resetting elastic buttons, the elastic buttons are provided with through holes matched with the wheel shaft rotating parts and locking grooves connected with the through holes, the wheel shaft rotating parts can be quickly detached when being matched with the through holes, and the wheel shafts can be locked and can rotate freely when being matched with the locking grooves.

After adopting above-mentioned structure, compared with the prior art there is following advantage and effect.

Firstly, because the main articulated seat of folding base can articulate on the main connecting rod one-way folding, the base connecting rod can articulate on the articulated seat of main articulated seat and corresponding front and back between the stand one-way folding around with one-way folding, the diagonal angle telescopic link corresponds articulates on the articulated seat of main articulated seat and corresponding front and back between the stand, the lower extreme of pull rod articulates on the articulated seat of pair, the upper end is connected on first side folding leg, when the folding car struts the use, one side of folding base is at the main connecting rod, play fine bearing effect around base connecting rod and diagonal angle telescopic link effect, the opposite side of folding base can play fine bearing effect under pull rod and first side folding leg cooperation, folding base rigidity is good, mechanical strength is high, stability is good, the load capacity is big.

And secondly, because the front and rear X-shaped fork rods of the folding rack at the first side are mutually hinged and correspondingly hinged on the front and rear upright posts, the front and rear X-shaped fork rods are hinged with the upper end of the pull rod and are also sleeved on the pull rod in a sliding manner through the pull rod sliding sleeve, the pull rod is provided with a limiting part for preventing the pull rod sliding sleeve from sliding upwards, when the folding base bears the weight, the limiting part of the pull rod prevents the pull rod from sliding relative to the pull rod sliding sleeve, and when the folding base bears the weight, the pull rod and the front and rear X-shaped fork rods form a lifting structure with stable structure.

Thirdly, when the folding bicycle is folded, the front and rear upright posts at the left and right sides, the front and rear X-shaped folding frames, the first side folding frame, the second side folding frame and the folding base are gathered and folded towards the center, and the folding bicycle is simple and rapid to fold, small in size and convenient to carry and store.

Fourthly, the front connecting rod and the rear connecting rod of the second side folding frame can be connected or opened through the quick-release connector, so that the goods can be loaded and unloaded more conveniently, and the folding base can also be used as a stool.

Fifthly, the handle support is correspondingly hinged on the lower hinged seats of the front upright columns on the left side and the right side, and the handle is connected to the handle support in an adjustable length mode, so that the novel hand-pulled folding vehicle can be pulled conveniently.

Sixthly, the front wheel and the rear wheel can be quickly and detachably arranged on the lower hinged seat, and the front wheel and the rear wheel are simple and convenient to replace and disassemble.

Drawings

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

Fig. 2 is a schematic top view of the invention of fig. 1.

Fig. 3 is a schematic perspective view of another direction of the present invention in use.

Fig. 4 is a schematic perspective view of the quick release joint of fig. 3 according to the present invention when opened.

FIG. 5 is a schematic view of an exploded structure of the quick release joint according to the present invention.

Fig. 6 is a schematic exploded view of the front and rear wheels of the present invention.

Fig. 7 is a schematic perspective view of the present invention in a semi-folded state.

Fig. 8 is a schematic perspective view of the folded state of the present invention.

The front column, the support connecting rod, the front connecting rod, the handle support, the handle 5, the X folding frame before 6, the quick release joint 7, the telescopic rod before 8, the rear connecting rod 9, the hinged seat on 10, the sliding sleeve of 11 fork rod, the rear column 12, the telescopic rod after 13, the X fork rod before 14, the pull rod 15, the spacing portion 16, the X folding frame after 17, the X fork rod after 18, the sliding sleeve of 19 connecting rods, the hinged seat under 20, the front wheel 21, the front base connecting rod before 22, the main hinged seat of 23, the base connecting rod after 24, the main connecting rod of 25, the diagonal telescopic rod 26, the auxiliary hinged seat of 27, the rear wheel 28, the sliding sleeve of 29 pull rods, the locking knob 30, the knob seat of 31, the knob seat of 32, the locking buckle seat of 33, the wheel carrier of 35, the wheel shaft of 36, the spring of 37, the elastic button of 38, the through hole of 39, and the locking groove of 40.

Detailed Description

As shown in figures 1 to 8, the invention creates a specific embodiment of a novel hand-pulled folding vehicle, which comprises front and rear upright posts 1, 12 at the left and right sides, front and rear X-shaped folding frames 6, 17, a first side folding frame and a second side folding frame correspondingly connected between the front and rear upright posts 1, 12 at the left and right sides, a folding base, front and rear wheels 21, 28, upper and lower hinged seats 10, 20 are correspondingly fixed on the front and rear upright posts 1, 12 at the left and right sides, the upper parts of the front and rear X-shaped folding frames 6, 17 are correspondingly hinged on the upper hinged seats 10 of the front and rear upright posts 1, 12 at the left and right sides through front and rear telescopic rods 8, 13, the lower parts of the front and rear X-shaped folding frames 6, 17 are correspondingly hinged on the lower hinged seats 20 of the front and rear upright posts 1, 12 at the left and right sides, the folding base comprises a main connecting rod 25, main and auxiliary hinged seats 23, 27, front and rear base connecting rods 22, 24, a diagonal telescopic rod 26, a pull rod 15, a main and auxiliary seat 23, 27 are correspondingly hinged at two ends of the main connecting rod 25, the front and rear base connecting rods 22 and 24 are correspondingly hinged on the lower hinged seat 20 between the main hinged seat 23 and the corresponding front and rear upright posts 1 and 12, the diagonal telescopic rod 26 is correspondingly hinged on the lower hinged seat 20 between the main hinged seat 23 and the corresponding front and rear upright posts 1 and 12, the lower end of the pull rod 15 is hinged on the auxiliary hinged seat 27, and the upper end is connected on the first side folding frame.

In order to ensure folding and bearing, the first side folding rack comprises a front X fork 14 and a rear X fork 18 which are connected in a cross way, the front upper end of the front X fork 14 is correspondingly hinged on an upper hinge seat 10 of a front upright post 1, the front lower end is connected with the front upright post 1 in a sliding way through a fork slide sleeve 11, the rear upper end of the rear X fork 18 is correspondingly hinged on an upper hinge seat 10 of a rear upright post 12, the rear lower end is connected with the rear upright post 12 in a sliding way through a fork slide sleeve 11, the rear upper end of the front X fork 14 is hinged with the front upper end of the rear X fork 18 and the upper end of a pull rod 15, the rear lower end of the front X fork 14 is hinged on a pull rod slide sleeve 29 with the front lower end of the rear X fork 18, the pull rod slide sleeve 29 is sleeved on the pull rod 15 in a sliding way, a limiting part 16 for preventing the pull rod slide sleeve 29 from upwards sliding is arranged on the pull rod 15, when the base is folded, the limiting part 16 limits the pull rod slide sleeve 29, the pull rod 15 and the front X fork 14, the rear upright post 14, the rear upright post, 18 form a hoisting structure with stable structure, and the front and rear X-shaped fork rods 14 and 18 are ensured not to deform when the pull rod 15 bears the load.

For convenience of folding, the second side folding frame comprises front and rear connecting rods 3 and 9, one ends of the front and rear connecting rods 3 and 9 are correspondingly hinged to upper hinge seats 10 of front and rear upright posts 1 and 12, the other ends of the front and rear connecting rods 3 and 9 are respectively connected to a quick-release connector 7, the front and rear connecting rods 3 and 9 can be folded through the quick-release connector 7, the front and rear connecting rods 3 and 9 are correspondingly hinged to front and rear supporting connecting rods 2, the other ends of the front and rear supporting connecting rods 2 are correspondingly connected to the front and rear upright posts 1 and 12 in a sliding manner through connecting rod sliding sleeves 19, and the front and rear supporting connecting rods 2 can improve the connection stability and reliability of the second side folding frame.

In order to facilitate loading and unloading of goods and use as a stool, the quick release joint 7 comprises a knob seat 31 and a lock catch seat 33 which are correspondingly fixed on the front and rear connecting rods 3 and 9, a lock hole 32 is arranged on the lock catch seat 33, a locking knob 30 matched with the lock hole 32 is arranged on the knob seat 31, and the knob seat 31 is detachably hinged on the lock catch seat 33 through the locking knob 30.

For convenience of use, the hand-pulling folding cart further comprises a hand-pulling device, the hand-pulling device comprises a handle 5 and a handle support 4, the handle support 4 is correspondingly hinged on the lower hinge seats 20 of the left and right front upright posts 1, and the handle 5 is connected to the handle support 4 in a length-adjustable manner.

In order to conveniently replace and disassemble the front and rear wheels 21 and 28, the front and rear wheels 21 and 28 are detachably and correspondingly arranged on the lower hinge seats 20 of the front and rear upright posts 1 and 12 at the left and right sides, wheel carriers 34 are correspondingly arranged on the front and rear wheels 21 and 28, wheel shafts 35 are fixed on the wheel carriers 34, wheel shaft rotating parts 36 are arranged on the wheel shafts 35, elastic buttons 38 capable of elastically resetting are arranged on connecting parts of the lower hinge seats 20, and through holes 39 matched with the wheel shaft rotating parts 36 and locking grooves 40 connected with the through holes 39 are arranged on the elastic buttons 38. When the elastic button 38 is pressed to move backwards and overcome the elastic force of the spring 37, the axle rotating part 36 is matched with the through hole 39 to be quickly disassembled, when the elastic button 38 is loosened, the elastic button 38 automatically resets under the elastic force of the spring 37, the axle rotating part 36 is matched with the locking groove 40 to lock the axle 35 and can rotate freely, and therefore quick and quick disassembly of the front and rear wheels 21 and 28 and steering functions of the universal wheel are achieved.

When the folding device is folded, the main hinge seat 23 is lifted upwards, the main hinge seat 23 drives the front and rear base connecting rods 22 and 24, the diagonal telescopic rod 26 and the main connecting rod 25 to move upwards, the front and rear base connecting rods 22 and 24, the diagonal telescopic rod 26 and the main connecting rod 25 move upwards and simultaneously drive the front and rear upright posts 1 and 12 and the auxiliary hinge seat 27 to fold, the front and rear upright posts 1 and 12 and the auxiliary hinge seat 27 to fold and simultaneously drive the front and rear X-folding frames 6 and 17 to fold, the front and rear X-fork rods 14 and 18 to fold and fold, the front and rear connecting rods 3 and 9 to fold and fold downwards, the connecting rod sliding sleeve 19 slides downwards along the corresponding front and rear upright posts 1 and 12 when the front and rear connecting rods 3 and 9 are folded downwards, and therefore the front and rear upright posts 1, 12, the front and rear X-folding frames 6 and 17, the first side folding frame and the second side folding frame are folded, The folding base is gathered and folded towards the center.

The above description is only an embodiment of the present invention, and is not intended to limit the present invention in any way, and simple modifications, equivalent changes and modifications may be made without departing from the technical solutions of the present invention, and the protection scope of the present invention is also included in the present invention.

Claims (6)

1. The utility model provides a novel hand power folding car, including the front and back stand (1, 12) of the left and right sides, front and back X folding leg (6, 17), correspond first side folding leg and second side folding leg, folding base, front and back wheel (21, 28) of connection between stand (1, 12) around the left and right sides, correspond on stand (1, 12) around controlling and be fixed with articulated seat (10, 20), characterized by from top to bottom: the upper parts of the front and rear X-shaped folding frames (6, 17) are correspondingly hinged on upper hinged seats (10) of the front and rear upright posts (1, 12) at the left and right sides through front and rear telescopic rods (8, 13), the lower parts of the front and rear X-shaped folding frames (6, 17) are correspondingly hinged on lower hinged seats (20) of the front and rear upright posts (1, 12) at the left and right sides, each folding base comprises a main connecting rod (25), main and auxiliary hinged seats (23, 27), front and rear base connecting rods (22, 24), diagonal telescopic rods (26) and pull rods (15), the main and auxiliary hinged seats (23, 27) are correspondingly hinged at two ends of the main connecting rod (25), the front and rear base connecting rods (22, 24) are correspondingly hinged on the lower hinged seats (20) between the main hinged seat (23) and the corresponding front and rear upright posts (1, 12), the diagonal telescopic rods (26) are correspondingly hinged on the lower hinged seats (20) between the main hinged seat (23) and the corresponding front and rear upright posts (1, 12), the lower end of the pull rod (15) is hinged on the auxiliary hinge seat (27), and the upper end is connected on the first side folding frame.

2. The novel hand-pulling folding cart as claimed in claim 1, which is characterized in that: the first side folding frame comprises a front X fork rod (14) and a rear X fork rod (18) which are mutually connected in a cross way, the front upper end of the front X fork rod (14) is correspondingly hinged on an upper hinged seat (10) of a front upright post (1), the front lower end is connected with the front upright post (1) in a sliding way through a fork rod sliding sleeve (11), the rear upper end of the rear X fork rod (18) is correspondingly hinged on an upper hinged seat (10) of a rear upright post (12), the rear lower end is connected with the rear upright post (12) in a sliding way through a fork rod sliding sleeve (11), the rear upper end of the front X fork rod (14) is hinged with the front upper end of the rear X fork rod (18) and the upper end of a pull rod (15), the rear lower end of the front X fork rod (14) is hinged on a pull rod sliding sleeve (29) with the front lower end of the rear X fork rod (18), the pull rod sliding sleeve (29) is sleeved on the pull rod (15) in a sliding way, and a limiting part (16) for preventing the pull rod (29) from sliding upwards is arranged on the pull rod (15), when the folding base bears the weight, the pull rod (15) and the front and rear X-shaped fork rods (14 and 18) form a lifting structure with stable structure.

3. The novel hand-pulled folding cart as claimed in claim 2, wherein: the second side folding leg include front and back connecting rod (3, 9), the one end of front and back connecting rod (3, 9) is corresponding articulated on articulated seat (10) in the last of front and back stand (1, 12), the other end is connected respectively on quick detach connects (7), correspond articulated on front and back connecting rod (3, 9) have front and back supporting link (2), the other end of front and back supporting link (2) corresponds the connection through connecting rod sliding sleeve (19) with sliding on front and back stand (1, 12).

4. The novel hand-pulled folding cart as claimed in claim 3, which is characterized in that: the quick-release connector (7) comprises a knob seat (31) and a lock catch seat (33) which are correspondingly fixed on the front connecting rod and the rear connecting rod (3 and 9), a lock hole (32) is formed in the lock catch seat (33), a locking knob (30) matched with the lock hole (32) is arranged on the knob seat (31), and the knob seat (31) is detachably hinged on the lock catch seat (33) through the locking knob (30).

5. The novel hand-pulled folding cart as claimed in any one of claims 1 to 4, which is characterized in that: the hand-pulling folding trolley further comprises a hand-pulling device, the hand-pulling device comprises a handle (5) and a handle support (4), the handle support (4) is correspondingly hinged to lower hinged seats (20) of the left front upright column and the right front upright column (1), and the handle (5) is connected to the handle support (4) in a length-adjustable mode.

6. The novel hand-pulled folding cart as claimed in claim 5, which is characterized in that: front and back wheel (21, 28) detachably correspond and set up on the articulated seat (20) of the lower of left and right sides front and back stand (1, 12), correspond on front and back wheel (21, 28) and be equipped with wheel carrier (34), be fixed with shaft (35) on wheel carrier (34), be equipped with shaft rotation portion (36) on shaft (35), but be equipped with elasticity elastic button (38) that reset on the connecting portion of articulated seat (20) down, be equipped with on elasticity button (38) with shaft rotation portion (36) complex through-hole (39) and with locking groove (40) that through-hole (39) link to each other, but quick dismantlement when shaft rotation portion (36) and through-hole (39) cooperate, pin shaft (35) and can rotate wantonly when shaft rotation portion (36) and locking groove (40) cooperate.

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