CN218577773U

CN218577773U - Heavy-duty outdoor pull cart

Info

Publication number: CN218577773U
Application number: CN202222092762.1U
Authority: CN
Inventors: 叶礼发
Original assignee: Guangdong Shunde Little General Baby Production Co ltd
Current assignee: Guangdong Shunde Little General Baby Production Co ltd
Priority date: 2022-08-10
Filing date: 2022-08-10
Publication date: 2023-03-07
Anticipated expiration: 2032-08-10

Abstract

The utility model provides an outdoor pull cart of heavily loaded formula which characterized in that: the sliding column device comprises four upright columns and a sliding column sleeved in the upright columns in a penetrating manner, wherein the bottom of each upright column is provided with a lower hinge seat, the top of each sliding column is provided with an upper hinge seat, and the sliding column drives the upper hinge seat to slide up and down on the top of each upright column; the side of articulated seat down and the side of articulated seat on articulated seat articulate respectively and have lower lever and side bar, the lower lever is articulated with the middle part of upper lever, both are "X" form and distribute, the other end of lower lever and upper lever is articulated with the tip of lower lever and upper lever on the opposite face. The utility model has the advantages that: in the scheme, the lower connecting rod is hinged with the end part of the upper side rod; therefore, the upper rod can play a role in supporting the lower connecting rod, so that the gravity at the bottom of the pull cart can be transmitted to the main body of the pull cart through the upper rod, and the bearing capacity of the pull cart is improved.

Description

Heavy-duty outdoor pull cart

Technical Field

The utility model relates to a pull cart that camping was used specifically is a heavily loaded formula is outdoor pulls cart.

Background

Folding carts are widely used to transport groceries, pets, garden supplies, and the like in many places. The existing folding cart generally comprises a handle and four wheels, and is additionally provided with a folding cart body and a containing box for containing articles. The cart may also be multifunctional, and may be used as an outdoor camper to carry items to the seaside or anywhere. As a folding trolley, the largest bright spot can be folded and stored when not in use, does not occupy a large space, can be carried large enough when in use, and is very popular. However, due to the structural influence of the conventional cart, the bottom cross bar of the cart is not connected with the stop bars of the side walls of the cart, so that the stop bars of the side walls cannot support the bottom cross bar, and the load-carrying capacity of the cart is limited, so that further improvement is needed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a heavy-duty outdoor pull cart with simple structure, convenient production and processing, convenient and quick folding operation and strong bearing capacity,

the utility model discloses the purpose is realized with following mode: the utility model provides an outdoor pull cart of heavily loaded formula which characterized in that: the sliding column device comprises four upright columns and a sliding column sleeved in the upright columns in a penetrating manner, wherein the bottoms of the upright columns are provided with lower hinged seats, the tops of the sliding columns are provided with upper hinged seats, and the sliding columns drive the upper hinged seats to be positioned at the tops of the upright columns to slide up and down;

the side surface of the lower hinging seat and the side surface of the upper hinging seat are respectively hinged with a lower side rod and an upper side rod, the lower side rod is hinged with the middle part of the upper side rod, the lower side rod and the upper side rod are distributed in an X shape, and the other ends of the lower side rod and the upper side rod are hinged with the end parts of the lower side rod and the upper side rod on the opposite surfaces;

the end surface of the lower hinge seat and the end surface of the upper hinge seat are respectively hinged with a lower end rod and an upper end rod, the middle parts of the lower end rod and the upper end rod are hinged, the lower end rod and the upper end rod are distributed in an X shape, and the other ends of the lower end rod and the upper end rod are hinged with the upper hinge seat and the lower hinge seat which correspond to the end parts of the lower end rod and the upper end rod;

the side surface of the lower hinge seat is also provided with four lower connecting rods, after the two lower connecting rods are hinged together through the lower connecting seat, one end of each lower connecting rod is hinged with the lower hinge seat, and the other end of each lower connecting rod is hinged with the lower connecting rod on the opposite surface of the lower connecting rod and hinged with the end part of the upper side rod;

the folding seat is hinged with folding rods on two sides, and the other end of each folding rod is hinged with the side wall of the lower connecting seat; the bottom of the lower hinge seat is also provided with a caster.

The stand be hollow structure, the traveller is cylindric telescopic interlude and installs at this stand top, last articulated seat install at the traveller top to the setting of closing cap traveller up end.

And a spring is arranged between the sliding column and the upright column and always pulls the sliding column downwards so that the sliding column retracts into the upright column.

The front end of the lower hinged seat is also provided with a pulling seat, and the pull rod device is hinged and installed in the pulling seat.

The pull rod device of the lower hinged seat comprises a pull rod seat, two front pull tubes are outwards hinged to the two sides of the pull rod seat and hinged to a pulling seat, an upper pull tube extends upwards from the top of the pull rod seat, and a handle rod is hinged to the top of the upper pull tube through the hinged seat.

The lower end face of the lower connecting seat is provided with an open slot, the lower connecting rod is hinged and installed in the open slot, and the upper end of the lower connecting rod is borne in the open slot of the lower connecting rod to limit the swing amplitude of the lower connecting rod.

The lower end face of the folding seat is provided with an open slot, the folding rod is hinged and installed in the open slot, and the upper end of the folding rod is borne in the open slot of the lower connecting rod to limit the swing amplitude of the folding rod.

The bottom of the lower hinged seat is provided with a mounting hole, and the caster wheel is detachably mounted in the mounting hole through a connecting shaft at the top of the caster wheel.

The upper hinge seat is provided with an inner bag which is made of flexible materials, and the inner bag is fixedly arranged inside the trolley.

The utility model has the advantages that: 1. the structure is simple, the production cost is low, and the market competitiveness is improved; 2. in the scheme, the lower connecting rod is hinged with the end part of the upper side rod; therefore, the upper side rod can play a role in supporting the lower connecting rod, so that the gravity at the bottom of the pull cart can be transmitted to the main body of the pull cart through the upper side rod, and the bearing capacity of the pull cart is improved; 3. after the lower connecting rod is hinged with the end part of the upper side rod, the folding rod positioned on the lower connecting rod can play a role in transversely limiting the lower connecting rod, so that the frame is prevented from deforming due to transverse extrusion of articles in the pull cart; 4. when folded, the truckle can be placed into the interior of the pull cart after being disassembled, thereby reducing the volume of the pull cart after being folded.

Drawings

Fig. 1 is a view showing the structure of the present invention in a folded state.

Fig. 2-5 are the views of the structure of the present invention in the unfolded use state.

Fig. 6 is the action schematic diagram of the structure in the folding process of the present invention.

Fig. 7 is an enlarged view of the structure of the part a in fig. 6 of the present invention.

Fig. 8 is a mounting view of the center pillar and the sliding pillar with the upper and lower hinge seats of the present invention.

Fig. 9 is a partial structural sectional view of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides an outdoor pull cart of heavily loaded formula which characterized in that: the sliding column device comprises four upright columns 1 and a sliding column 2 sleeved in the upright columns, wherein the bottom of each upright column 1 is provided with a lower hinge base 3, the top of each sliding column 2 is provided with an upper hinge base 4, and the sliding column 2 drives the upper hinge bases 4 to slide up and down on the tops of the upright columns 1;

the side surface of the lower hinge seat 3 and the side surface of the upper hinge seat 4 are respectively hinged with a lower side rod 5 and an upper side rod 6, the lower side rod 5 is hinged with the middle part of the upper side rod 6, the lower side rod 5 and the upper side rod 6 are distributed in an X shape, and the other ends of the lower side rod 5 and the upper side rod 6 are hinged with the end parts of the lower side rod 5 and the upper side rod 6 on opposite surfaces;

the end surface of the lower hinge seat 3 and the end surface of the upper hinge seat 4 are respectively hinged with a lower end rod 7 and an upper end rod 8, the middle parts of the lower end rod 7 and the upper end rod 8 are hinged and distributed in an X shape, and the other ends of the lower end rod 7 and the upper end rod 8 are hinged with the upper hinge seat 4 and the lower hinge seat 3 corresponding to the end parts thereof;

four lower connecting rods 9 are further arranged on the side face of the lower hinge base 3, after the two lower connecting rods 9 are hinged together through a lower connecting base 10, one end of each lower connecting rod is hinged with the lower hinge base 3, and the other end of each lower connecting rod 9 is hinged with the lower connecting rod 9 on the opposite face of the lower connecting rod 9 and hinged with the end part of the upper side rod 6;

the folding device is characterized by further comprising a folding seat 11, wherein folding rods 12 are hinged to two sides of the folding seat 11, and the other ends of the folding rods 12 are hinged to the side wall of the lower connecting seat 10; the bottom of the lower hinge base 3 is also provided with casters 13.

Stand 1 be hollow structure, traveller 2 is cylindric telescopic interlude and installs at 1 top of this stand, last articulated seat 4 install at 2 tops of traveller to the setting of closing cap 2 up ends of traveller.

A spring 14 is arranged between the sliding column 2 and the upright column 1, and the spring 14 always pulls the sliding column 2 downwards, so that the sliding column 2 retracts into the upright column 1.

The front end of the lower hinged seat 3 is also provided with a pulling seat 15, and the pull rod device is hinged and installed in the pulling seat 15.

The pull rod device of the lower hinged seat 3 comprises a pull rod seat 16, two front pull tubes 17 are outwards hinged to two sides of the pull rod seat 16 and hinged to a pulling seat 15, an upper pull tube 18 extends upwards from the top of the pull rod seat 16, and a handle rod 19 is hinged to the top of the upper pull tube 18 through the hinged seat.

The lower end face of the lower connecting seat 10 is provided with an open slot, the lower connecting rod 9 is hinged and installed in the open slot, and the upper end of the lower connecting rod 9 is borne in the open slot of the lower connecting rod 9 to limit the swing amplitude of the lower connecting rod 9.

An open slot is arranged on the lower end face of the folding seat 11, the folding rod 12 is hinged and installed in the open slot, and the upper end of the folding rod 12 is borne in the open slot of the lower connecting rod 9 to limit the swing amplitude of the folding rod 12.

The bottom of the lower hinge base 3 is provided with a mounting hole, and the caster 13 is detachably mounted in the mounting hole through a connecting shaft at the top of the caster.

The upper hinge seat 4 is provided with an inner bag which is made of flexible material, and the inner bag is fixedly arranged inside the trolley.

The working principle is as follows: as shown in figure 1, after the folding of this pulling trolley, can place the pulling trolley inside after dismantling the truckle to reduce the volume after the pulling trolley is folded, make the volume after this pulling trolley is folded more small and exquisite. As shown in figure 2, when a user needs to use the pull cart, the upright posts are pulled backwards, the upright posts are hinged through the upper and lower side rods and the upper and lower end rods which are distributed in X, and the scissor-type hinge structure can enable the side rods and the pull rods to be folded or unfolded through relative movement. When the pull cart is unfolded, the vertical distances of the two free ends of the side rods and the end rods are compressed, and the transverse distances of the two free ends are stretched, so that the purpose of unfolding the pull cart frame in the length direction is achieved. When the two end rods are opened outwards, the purpose of unfolding the bicycle in the width direction is achieved, and the whole bicycle frame can be unfolded and used through unfolding in two directions.

Wherein, at tensile expansion in-process, side lever and end lever and the junction atress downstream of last articulated seat to promote the traveller to extend into in the stand, and the lower articulated seat position that is located the bottom is then unchangeable, thereby produces relative motion through last articulated seat and articulated seat down, promotes the frame and expandes or accomodate.

When the upper and lower side rods and the upper and lower end rods are unfolded, the four lower connecting rods 9 on the same side can be pulled to be unfolded outwards through the traction of the upper and lower side rods. After two adjacent lower connecting rods 9 are hinged together through a lower connecting seat 10, one end of each lower connecting rod 9 is hinged with the lower hinge seat 3, and the other end of each lower connecting rod 9 is hinged with the lower connecting rod 9 on the opposite surface of the lower connecting rod 9 and hinged with the end part of the upper side rod 6; the lower connecting rod is hinged to the lower connecting seat, and after the lower connecting rod is unfolded in place, the upper end of the lower connecting rod is borne in the opening groove of the lower connecting rod to limit the swing amplitude of the lower connecting rod, so that the lower connecting rods are kept in a horizontal stressed state after being unfolded, and the lower connecting rods can only swing upwards to be folded.

In the unfolding process, folding rods 12 hinged to two sides of the folding seat 11 are also unfolded outwards to expand the width of the frame, and the other ends of the folding rods 12 are hinged to the side walls of the lower connecting seats 10; similarly, an open slot is arranged on the lower end face of the folding seat 11, the folding rod 12 is hinged and installed in the open slot, and after the frame is unfolded, the upper end of the folding rod 12 is supported in the open slot of the lower connecting rod 9 to limit the downward swing amplitude of the folding rod 12. After being unfolded, the two folding rods 12 can bear the heavy pressure from the upper part without swinging downwards and pulling the side frame of the frame in the reverse direction, and the gravity is horizontally transmitted to the lower connecting rod 9 under the action of the bearing beam, and the transverse pulling force is exerted to limit the outward displacement of the lower connecting rods at the two sides.

Wherein, it needs to be stated that: because the pull cart in the present case is folding or tensile expansion in-process, articulated seat is in quiescent condition down, and go up articulated seat and be in the active state, therefore, go up the height of the articulated department of side bar 6 and lower connecting rod and the relative altitude between the articulated seat down can not take place the displacement, so, can be as an organic whole with side bar 6 and lower connecting rod are articulated in the present case, thereby make lower connecting rod when bearing gravity, can transmit gravity to the stand direction through the many link structure of side bar 6 and lower lever, avoided lower connecting rod to take place deformation after the atress, thereby the bearing capacity of this pull cart bottom has been promoted. Meanwhile, after the upper side rods and the lower connecting rods are hinged into a whole, the folding seat 11 between the two opposite lower connecting rods and the folding rods 12 hinged on the two sides are connected, and the lower connecting rods are utilized to play a role in transversely drawing the left lower connecting rod and the right lower connecting rod; when goods in the car extrude upper and lower side lever to both sides, because draw each other between the bottom of upper side lever and lower connecting rod and folding rod, played the purpose that prevents upper and lower side lever and outwards expand and move, increased the compressive capacity of frame, avoid the frame to take place deformation.

As shown in fig. 9, in order to realize that the frame can be automatically unfolded when in use, a spring 14 is arranged between the strut 2 and the upright post 1, and the spring 14 always pulls the strut 2 downwards, so that the strut 2 retracts into the upright post 1. The spring generates power for pulling the upper hinge seat to move towards the lower hinge seat, and when the power is used for driving the upper hinge seat to move downwards, the acting force can be used for automatically pushing the frame to unfold. Meanwhile, the four sliding columns are all pulled by the pulling force, so that the four sliding columns can move synchronously, the unfolding action is smoother, the phenomenon that the sliding columns are blocked due to uneven stress when being unfolded manually is avoided, and the frame is unfolded more quickly, conveniently and smoothly when being used by a user conveniently. When the user needs to fold the bicycle frame, the user only needs to operate in the reverse direction, and the motion process of each part is opposite to the unfolding process, which is not described in detail herein.

Compared with the prior art, the relative displacement setting of unique stand and traveller in the present case for the lower connecting rod 9 and the folding rod 12 that the frame bottom is used for the bearing can carry out mechanical connection with the upper bar and the lower side pole of frame lateral wall, pull each other between the three, when not influencing its folding function, pull through between the three and can make this car of pulling have bigger bearing capacity and anti deformability, in order to satisfy the user's heavily loaded operation requirement, the life who pulls has been prolonged, so can extensively use widely.

The foregoing shows and describes the basic principles and principal features of the invention, together with the advantages thereof. 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.

Claims

1. The utility model provides an outdoor pull cart of heavily loaded formula which characterized in that: the sliding column device comprises four upright columns (1) and sliding columns (2) sleeved in the upright columns in a penetrating manner, wherein lower hinge seats (3) are arranged at the bottoms of the upright columns (1), upper hinge seats (4) are arranged at the tops of the sliding columns (2), and the sliding columns (2) drive the upper hinge seats (4) to slide up and down on the tops of the upright columns (1);

the side surface of the lower hinged seat (3) and the side surface of the upper hinged seat (4) are respectively hinged with a lower side rod (5) and an upper side rod (6), the lower side rod (5) is hinged with the middle part of the upper side rod (6), the lower side rod and the upper side rod are distributed in an X shape, and the other ends of the lower side rod (5) and the upper side rod (6) are hinged with the end parts of the lower side rod (5) and the upper side rod (6) on the opposite surfaces;

the end face of the lower hinge seat (3) and the end face of the upper hinge seat (4) are respectively hinged with a lower end rod (7) and an upper end rod (8), the middle parts of the lower end rod (7) and the upper end rod (8) are hinged, the lower end rod (7) and the upper end rod (8) are distributed in an X shape, and the other ends of the lower end rod (7) and the upper end rod (8) are hinged with the upper hinge seat (4) and the lower hinge seat (3) corresponding to the end parts of the lower end rod and the upper end rod;

four lower connecting rods (9) are further arranged on the side face of the lower hinge seat (3), after the two lower connecting rods (9) are hinged together through a lower connecting seat (10), one end of each lower connecting rod is hinged with the lower hinge seat (3), and the other end of each lower connecting rod (9) is hinged with the lower connecting rod (9) on the opposite face of the lower connecting rod and hinged with the end part of the upper side rod (6);

the folding device is characterized by further comprising a folding seat (11), wherein folding rods (12) are hinged to two sides of the folding seat (11), and the other end of each folding rod (12) is hinged to the side wall of the lower connecting seat (10); the bottom of the lower hinged seat (3) is also provided with a caster (13).

2. The outdoor heavy-duty pull cart of claim 1, wherein: stand (1) be hollow structure, traveller (2) are cylindric telescopic interlude and install at this stand (1) top, last articulated seat (4) install at traveller (2) top to closing cap traveller (2) up end sets up.

3. The outdoor heavy-duty pull cart of claim 1, wherein: a spring (14) is arranged between the sliding column (2) and the upright column (1), and the spring (14) always pulls the sliding column (2) downwards so that the sliding column (2) retracts into the upright column (1).

4. The outdoor heavy-duty pull cart of claim 1, wherein: the front end of the lower hinged seat (3) is also provided with a pulling seat (15), and the pull rod device is hinged and installed in the pulling seat (15).

5. The outdoor heavy-duty pull cart of claim 4, wherein: the pull rod device of the lower hinged seat (3) comprises a pull rod seat (16), two front pull tubes (17) are outwards hinged to the two sides of the pull rod seat (16) and hinged to a pulling seat (15), an upper pull tube (18) extends upwards from the top of the pull rod seat (16), and a handle rod (19) is hinged to the top of the upper pull tube (18) through the hinged seat.

6. The outdoor heavy-duty pull cart of claim 1, wherein: an open slot is formed in the lower end face of the lower connecting seat (10), the lower connecting rod (9) is installed in the open slot in a hinged mode, and the upper end of the lower connecting rod (9) is borne in the open slot of the lower connecting rod (9) to limit the swing amplitude of the lower connecting rod (9).

7. The outdoor heavy-duty pull cart of claim 1, wherein: the lower end face of the folding seat (11) is provided with an open slot, the folding rod (12) is hinged and installed in the open slot, and the upper end of the folding rod (12) is borne in the open slot of the lower connecting rod (9) to limit the swing amplitude of the folding rod (12).

8. The outdoor heavy-duty pull cart of claim 1, wherein: the bottom of the lower hinged seat (3) is provided with a mounting hole, and the caster (13) is detachably mounted in the mounting hole through a connecting shaft at the top of the caster.

9. The outdoor heavy-duty pull cart of claim 1, wherein: the upper hinge seat (4) is provided with an inner bag which is made of flexible material, and the lining is fixedly arranged inside the trolley.