CN211196246U

CN211196246U - Shopping trolley

Info

Publication number: CN211196246U
Application number: CN201920655505.XU
Authority: CN
Inventors: 冯辰
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-05-08
Filing date: 2019-05-08
Publication date: 2020-08-07
Anticipated expiration: 2029-05-08

Abstract

The utility model discloses a shopping cart belongs to and carries thing car field. The shopping cart further comprises: first pivot, the second pivot, change the handle, connect the rope, the elastic component, clamping device, two movable rods and two movable wheels, two movable rods are arranged respectively in the both sides of frame, the pivot mounting hole has been seted up on first bracing piece and the second bracing piece respectively, two pivot mounting holes and two movable rod fixed connection are passed respectively at the both ends of first pivot, two movable wheels are rotatable the installation respectively and are served at the first of two movable rods, the center of rotation of movable wheel and the center of rotation parallel arrangement of walking wheel. The frame of this shopping pull cart inclines, and the movable rod supports on the frame to born a part of weight of heavy object, this make the user when pulling the shopping pull cart, only need provide the shopping pull cart forward power can, simultaneously, walking wheel and two loose wheels all land, make the shopping pull cart have good stability, effectively avoided the problem of empting of shopping pull cart.

Description

Shopping trolley

Technical Field

The utility model relates to a carry thing car field, in particular to shopping pull cart.

Background

The shopping pull cart is a common transportation tool in real life and is mainly used for occasions such as shopping or going out.

Current shopping carts include: frame, handle, shopping bag and two walking wheels, the handle is installed on the frame, and the shopping bag is fixed on the frame, and the shopping bag is used for accomodating article, and two parallel interval arrangements of walking wheel to rotatable the bottom of installing at the frame respectively. When the shopping trolley is used, a user pulls the handle by hand to place the shopping trolley obliquely, and the shopping trolley travels through the two travelling wheels.

When the shopping trolley is loaded with a large amount of heavy objects, the user pulls the shopping trolley forward and bears the weight of the heavy objects on the shopping trolley, which makes the user more strenuous in pulling the shopping trolley. Simultaneously, for the convenience of pulling the shopping pull cart, the distance between two walking wheels respectively to the handle is all great during the setting, can convenient to use person like this pull the shopping pull cart, but, sets up the stability that can reduce the shopping pull cart like this, and the shopping pull cart is emptyd easily at the in-process of marcing. Moreover, the old people are weak in hands and feet and are not easy to pull the shopping cart.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the shopping pull cart is difficult to pull among the prior art, the embodiment of the utility model provides a shopping pull cart. The technical scheme is as follows:

the utility model provides a shopping cart, include: frame, walking wheel and handle, the frame includes: the walking wheel is rotatably arranged at the bottom of the frame, and the handle is arranged at the top of the frame.

The shopping cart further comprises: the bicycle frame comprises a first rotating shaft, a second rotating shaft, a rotating handle, a connecting rope, an elastic part, a clamping device, two movable rods and two movable wheels, wherein the two movable rods are respectively arranged at two sides of the frame, the first supporting rod and the second supporting rod are respectively provided with a rotating shaft mounting hole, two ends of the first rotating shaft respectively penetrate through the two rotating shaft mounting holes and are respectively fixedly connected with the two movable rods, the two movable wheels are respectively rotatably arranged at first ends of the two movable rods, the rotating centers of the movable wheels are arranged in parallel with the rotating centers of the walking wheels, the first rotating shaft and the second rotating shaft are arranged at intervals, the first end of the second rotating shaft is rotatably arranged on the first supporting rod, the second end of the second rotating shaft is rotatably arranged on the second supporting rod, and the first end of the rotating handle is fixed at the middle part of the first rotating shaft, one end of the connecting rope is fixed to the second end of the rotating handle, the other end of the connecting rope is fixed to the second rotating shaft, and a first included angle is formed between the rotating handle and the connecting rope.

One end of the elastic member is fixed to the frame, the other end of the elastic member is fixed to the movable rod, and the clamping device is fixed to the frame and configured to fix the movable rod to the frame.

Specifically, the second pivot is gone up to overlap and is equipped with the round platform, the round platform has been seted up and has been connected the rope mounting groove, it twines to connect the rope in the rope mounting groove.

Specifically, a mounting ring is fixed on a first end of the rotating handle, and the mounting ring is sleeved and fixed in the middle of the first rotating shaft.

Specifically, a rocking handle is arranged at the first end of the first rotating shaft.

Specifically, two all install the bearing on the pivot mounting hole, first pivot is installed on the bearing.

Specifically, the first rotating shaft and the two movable rods are connected through splines.

Specifically, the clamping device includes: the mounting rack comprises a first side plate, a second side plate and a third side plate, the first side plate and the third side plate are arranged oppositely at intervals, two sides of the second side plate are respectively connected with the first side plate and the third side plate, the first side plate is fixed on the frame, the third side plate is provided with a threaded hole matched with the threaded rod, the middle part of the threaded rod is arranged on the threaded hole, the screw cap is arranged outside the mounting rack, the first end of the threaded rod is connected with the turncap, the clamping block is arranged between the first side plate and the third side plate, the second end of threaded rod with the clamp splice is connected, the second end of movable rod is arranged the clamp splice with between the first curb plate, just the second end of movable rod with the inner wall laminating of first curb plate is arranged.

Furthermore, the shopping pull cart further comprises two connecting rods, the first ends of the two connecting rods are respectively rotatably mounted on the first supporting rod and the second supporting rod, and the second ends of the two connecting rods are respectively detachably mounted on the corresponding movable rods.

Still further, the shopping cart further comprises: two installation pieces, two sliders and two springs, two installation pieces are installed respectively first bracing piece with on the second bracing piece, every along the length direction of first bracing piece has all seted up the spout on the installation piece, two sliders are slidable mounting respectively two in the spout, two springs are arranged respectively in two in the spout, and every the one end of spring is all fixed and is corresponded on the installation piece, every the other end of spring is all fixed and is corresponded on the slider, two the first end of connecting rod is rotatable the installation respectively and is corresponded on the slider.

Furthermore, a pin shaft hole is formed in the second end of the connecting rod, a plurality of installation pins which are matched with the pin shaft hole are installed on the movable rod and are arranged along the length direction of the movable rod, and the pin shaft hole is sleeved on one of the installation pins.

The embodiment of the utility model provides a beneficial effect that technical scheme brought is: the embodiment of the utility model provides a shopping cart, when shopping cart goes up and bears more heavy object, the user can strut the movable rod, make and keep the second contained angle between movable rod and the frame, fix the position of movable rod through clamping device, the walking wheel all lands with the movable wheel, this moment, the frame slope, the movable rod supports on the frame, and born a part weight of heavy object, this makes the user when pulling shopping cart, only need provide shopping cart forward power can, simultaneously, walking wheel and two movable wheels all land, make shopping cart have good stability, the problem of empting of shopping cart has effectively been avoided.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic front view of a shopping cart according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a connecting rod provided in the embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The embodiment of the utility model provides a shopping cart, as shown in figure 1, this shopping cart includes: frame 1, walking wheel 2 and handle 3, frame 1 includes: first bracing piece 1a and second bracing piece 1b, and first bracing piece 1a and second bracing piece 1b interval parallel arrangement are in the coplanar, and walking wheel 2 rotatable the installation is in the bottom of frame 1, and handle 3 is installed at the top of frame 1, and specifically, the one end of handle 3 is fixed on the top of first bracing piece 1a, and the other end of handle 3 is fixed on the top of second bracing piece 1 b. The shopping cart may further include a support base 1c, one side of the support base 1c being fixed to the bottom end of the first support bar 1a, and the other side of the support base 1c being fixed to the bottom end of the second support bar 1 b. The number of the walking wheels 2 is two, and when the walking wheels are realized, the two walking wheels 2 are arranged at the bottom of the supporting bottom plate 1c in parallel at intervals.

As shown in fig. 2, the shopping cart further comprises a first rotating shaft 4, a second rotating shaft 5, a rotating handle 6, a connecting rope 7, an elastic member 8, a clamping device 9, two movable rods 10 and two movable wheels 11, wherein the two movable rods 10 are respectively arranged on two sides of the frame, a rotating shaft mounting hole is respectively formed in each of the first supporting rod 1a and the second supporting rod 1b, two ends of the first rotating shaft 4 respectively penetrate through the two rotating shaft mounting holes to be fixedly connected with the two movable rods 10, the two movable wheels 11 are respectively rotatably mounted on first ends of the two movable rods 10, a rotation center of each movable wheel 11 is arranged in parallel to a rotation center of the corresponding traveling wheel 2, the first rotating shaft 4 is arranged at an interval with the second rotating shaft 5, a first end of the second rotating shaft 5 is rotatably mounted on the first supporting rod 1a, a second end of the second rotating shaft 5 is rotatably mounted on the second supporting rod 1b, a first end of the rotating handle 6 is fixed in the middle of the first rotating shaft 4, one end of the connecting rope 7 is fixed on a second end of the rotating handle 6, the other end of the connecting rope 7 is fixed on the second rotating shaft 5, an acute angle which is preferably equal to or smaller than an acute angle of the first rotating shaft 35, and an acute angle of the connecting rope 6, and an acute angle which is preferably equal to or smaller than an acute angle of the second rotating shaft 8652.

One end of each elastic element 8 is fixed on the frame 1, the other end of each elastic element 8 is fixed on the movable rod 10, each elastic element 8 is configured to enable a second included angle β to be formed between the movable rod 10 and the plane, when the movable rod 10 is folded, namely, when the movable rod 10 is arranged in parallel with the frame 1, each elastic element 8 is compressed, when a second included angle β is formed between the movable rod 10 and the plane, each elastic element 8 is in a non-compressed state, each clamping device 9 is fixed on the frame 1, and each clamping device 9 is configured to fix the movable rod 10 on the frame 1.

Specifically, the second rotating shaft 5 is sleeved with a circular truncated cone 5a, the circular truncated cone 5a is provided with a connecting rope mounting groove 51a, and the connecting rope 7 is wound in the connecting rope mounting groove 51 a. The diameter of round platform 5a is greater than the diameter of second pivot 5, and this makes round platform 5a can provide bigger area of contact for the installation of connecting rope 7, is more convenient for connect the installation and the fixed of rope 7, connects rope mounting groove 51a can fixed connection rope 7, prevents to connect rope 7 and shifts.

Specifically, a mounting ring 6a may be fixed on a first end of the rotating handle 6, and the mounting ring 6a is fixed in the middle of the first rotating shaft 4 in a sleeving manner. The mounting ring 6a can be convenient for the rotating handle 6 to be fixed with the first rotating shaft 4, and meanwhile, the mounting ring 6a enables the fixing mode of the rotating handle 6 and the first rotating shaft 4 to be simpler, which is beneficial to the batch production of shopping trolleys. In practice, the mounting ring 6a may also be fixed to the first shaft 4 by means of bolts (not shown).

Specifically, a rocking handle 4a may be provided on a first end of the first rotating shaft 4. The handle 4a can facilitate the user to turn the first shaft 4.

Specifically, bearings 12 may be mounted on both of the two shaft mounting holes, and the first shaft 4 is mounted on the bearings 12. The bearing 12 enables the first rotary shaft 4 to rotate more smoothly with respect to the rotary shaft mounting hole.

Specifically, the first rotating shaft 4 and the two movable levers 10 may be both connected by splines. The splines enable the first rotation shaft 4 to have a better bearing capacity.

In particular, the clamping means 9 may comprise: a mounting bracket, a threaded rod 9b, a turncap 9c and a clamping block 9d, wherein the mounting bracket comprises a first side plate 91a, a second side plate 92a and a third side plate 93a, the first side plate 91a and the third side plate 93a are arranged in parallel at opposite intervals, two sides of the second side plate 92a are connected with the first side plate 91a and the third side plate 93a respectively, the first side plate 91a is fixed on the frame 1, a threaded hole matched with the threaded rod 9b is formed in the third side plate 93a, the middle of the threaded rod 9b is installed on the threaded hole, the screw cap 9c is arranged outside the installation frame, the first end of the threaded rod 9b is connected with the screw cap 9c, the clamping block 9d is arranged between the first side plate 91a and the third side plate 93a, the second end of the threaded rod 9b is connected with the clamping block 9d, the second end of the movable rod 10 is arranged between the clamping block 9d and the first side plate 91a, and the second end of the movable rod 10 is attached to the inner wall of the first side plate 91. When clamping device 9 needs to fix movable rod 10 on frame 1, can rotate and revolve cap 9c, make and revolve cap 9c and drive threaded rod 9b and rotate along the screw hole, support the second end of movable rod 10 on third curb plate 93a through clamp splice 9d, this clamping device 9 has good tight effect of clamp, can effectively avoid movable rod 10 to rotate. When the realization, the second end of two movable rods 10 can be for having the disc type of certain thickness, and its thickness can be 3 ~ 5cm, the better tight movable rod 10 of clamp that can be convenient for clamping device 9 like this. The clamping device 9 may be two, and the two first side plates 91a are fixed on the first supporting rod 1a and the second supporting rod 1b, respectively. In this embodiment, the screw cap 9c has not only the function of a knob but also the function of preventing the threaded rod 9b from slipping out of the mounting.

An anti-slip gasket 931a may be fixed to the first side plate 91a, the anti-slip gasket 931a is disposed between the first side plate 91a and the movable rod 10, and the anti-slip gasket 931a may avoid the movable rod 10 and the first side plate 91a from slipping, so as to effectively ensure the clamping effect of the clamping device 9.

In this embodiment, both ends of the first rotating shaft 4 respectively pass through the first side plate 91a and the anti-slip pad 931a and then are fixedly connected to the two movable rods 10. When the rotation of the first rotating shaft 4 is achieved, the anti-slip gasket 931a may be installed with the spring gasket rings 20, and the two ends of the first rotating shaft 4 are respectively disposed in the two spring gasket rings 20, so as to avoid the contact between the first rotating shaft 4 and the anti-slip gasket 931a and prevent the anti-slip gasket 931a from affecting the rotation of the first rotating shaft 4.

Further, the shopping trolley can further comprise two connecting rods 13, first ends of the two connecting rods 13 are respectively rotatably mounted on the first supporting rod 1a and the second supporting rod 1b, second ends of the two connecting rods 13 are respectively detachably mounted on the corresponding movable rods 10, second ends of the two connecting rods 13 can be arranged between the two movable rods 10, and can also be arranged on outer sides of the two movable rods 10, when a second included angle β is kept between the movable rods 10 and the trolley frame 1, the connecting rods 13 can be supported between the movable rods 10 and the trolley frame 1, so that the connecting rods 13, the movable rods 10 and the trolley frame 1 form a triangle, the structure of the triangle is stable, and good stability of the shopping trolley can be guaranteed.

Further, the shopping cart may further include: two installation blocks 14, two sliders 15 and two springs 16, two installation blocks 14 are installed respectively on first bracing piece 1a and second bracing piece 1b, spout 14a has all been seted up along the length direction of first bracing piece 1a on every installation block 14, but two sliders 15 slidable mounting respectively are in two spouts 14a, two springs 16 are arranged respectively in two spouts 14a, and the one end of every spring 16 is all fixed on corresponding installation block 14, the other end of every spring 16 is all fixed on corresponding slider 15, but the first end of two connecting rods 13 is rotatable installation respectively on corresponding slider 15. The spring 16 can realize the function of shock absorption during the shopping trolley travelling process.

Further, the second end of connecting rod 13 has been seted up the round pin shaft hole, install a plurality of installation round pins 17 with round pin shaft hole matched with respectively on the movable rod 10, a plurality of installation round pins 17 are arranged along the length direction of movable rod 10, round pin shaft hole suit is on one of them installation round pin 17, the shopping pull cart can change the inclination of frame 1 according to the road conditions of difference and user's height condition, at this moment need the angle of second contained angle β between movable rod 10 and the frame 1 can change the size according to the different situations, with round pin shaft hole suit on different installation round pin 17, a plurality of installation round pin 17 can make connecting rod 13 support the movable rod 10 of different positions, thereby guarantee the structure of shopping pull cart and stabilize.

Specifically, the travelling wheels 2 and the movable wheels 11 can be universal wheels, so that the shopping trolley can be conveniently pulled to travel.

In particular, the elastic member 8 may be a spring. The spring can provide increased spring force, so that the movable rod 10 can be ejected out and keep a certain angle with the frame 1.

The following briefly introduces the working principle of the shopping cart provided by the embodiment of the present invention, which is specifically as follows:

when the shopping trolley moves forward, the elastic piece 8 is supported between the movable rod 10 and the trolley frame 1, a second included angle β is kept between the movable rod 10 and the trolley frame 1, the position of the movable rod 10 is fixed through the clamping device 9, the travelling wheels 2 and the movable wheels 11 are grounded, at the moment, the trolley frame 1 is inclined, a user pulls the handle 3 to enable the shopping trolley to move forward, when the second included angle β needs to be reduced (for example, when the movable rod 10 is retracted), the clamping device 9 is firstly opened, the movable rod 10 is in an unfixed state, the other end of the connecting rope 7 is wound on the second rotating shaft 5 through rotating the second rotating shaft 5, the length of the connecting rope 7 is shortened, the first included angle α between the rotating handle 6 and the connecting rope 7 is increased, the connecting rope 7 pulls the rotating handle 6 to rotate, the rotating handle 6 drives the first rotating shaft 4 to rotate, the first rotating shaft 4 drives the two movable rods 10 to rotate, the length of the second rotating shaft 5 is controlled by controlling the length of the connecting rope 7 to control the size of the second included angle β, and accordingly different positions of the two movable.

The embodiment of the utility model provides a shopping cart, when shopping cart goes up and bears more heavy object, the user can strut the movable rod, make and keep the second contained angle between movable rod and the frame, fix the position of movable rod through clamping device, the walking wheel all lands with the movable wheel, this moment, the frame slope, the movable rod supports on the frame, and born a part weight of heavy object, this makes the user when pulling shopping cart, only need provide shopping cart forward power can, simultaneously, walking wheel and two movable wheels all land, make shopping cart have good stability, the problem of empting of shopping cart has effectively been avoided.

Claims

1. A shopping cart comprising: frame, walking wheel and handle, the frame includes: the first support rod and the second support rod are arranged in parallel at intervals in the same plane, the travelling wheels are rotatably arranged at the bottom of the frame, the handle is arranged at the top of the frame,

the shopping cart further comprises: the bicycle frame comprises a first rotating shaft, a second rotating shaft, a rotating handle, a connecting rope, an elastic part, a clamping device, two movable rods and two movable wheels, wherein the two movable rods are respectively arranged at two sides of the bicycle frame, the first supporting rod and the second supporting rod are respectively provided with a rotating shaft mounting hole, two ends of the first rotating shaft respectively penetrate through the two rotating shaft mounting holes and are fixedly connected with the two movable rods, the two movable wheels are respectively rotatably mounted at first ends of the two movable rods, the rotating centers of the movable wheels are parallel to the rotating centers of the walking wheels, the first rotating shaft and the second rotating shaft are arranged at intervals, the first end of the second rotating shaft is rotatably mounted on the first supporting rod, the second end of the second rotating shaft is rotatably mounted on the second supporting rod, and the first end of the rotating handle is fixed at the middle part of the first rotating shaft, one end of the connecting rope is fixed on the second end of the rotating handle, the other end of the connecting rope is fixed on the second rotating shaft, a first included angle is formed between the rotating handle and the connecting rope,

2. The shopping cart of claim 1, wherein a circular truncated cone is sleeved on the second rotating shaft, a connecting rope mounting groove is formed in the circular truncated cone, and the connecting rope is wound in the connecting rope mounting groove.

3. The shopping cart of claim 1 wherein a mounting ring is fixed to a first end of said handle, said mounting ring being telescopically fixed to a middle portion of said first rotatable shaft.

4. The shopping cart of claim 1 wherein a handle is disposed on a first end of said first shaft.

5. The shopping cart of claim 1 wherein bearings are mounted to both of said shaft mounting holes, said first shaft being mounted to said bearings.

6. The shopping cart of claim 1 wherein said first rotatable shaft is splined to both of said movable bars.

7. The shopping cart of claim 1 wherein said clamp means comprises: the mounting rack comprises a first side plate, a second side plate and a third side plate, the first side plate and the third side plate are arranged oppositely at intervals, two sides of the second side plate are respectively connected with the first side plate and the third side plate, the first side plate is fixed on the frame, the third side plate is provided with a threaded hole matched with the threaded rod, the middle part of the threaded rod is arranged on the threaded hole, the screw cap is arranged outside the mounting rack, the first end of the threaded rod is connected with the turncap, the clamping block is arranged between the first side plate and the third side plate, the second end of threaded rod with the clamp splice is connected, the second end of movable rod is arranged the clamp splice with between the first curb plate, just the second end of movable rod with the inner wall laminating of first curb plate is arranged.

8. The shopping cart of any one of claims 1-7 further comprising two connecting rods, first ends of said two connecting rods being rotatably mounted to said first support rod and said second support rod, respectively, and second ends of said two connecting rods being detachably mounted to respective ones of said movable rods.

9. The shopping cart of claim 8, further comprising: two installation pieces, two sliders and two springs, two installation pieces are installed respectively first bracing piece with on the second bracing piece, every along the length direction of first bracing piece has all seted up the spout on the installation piece, two sliders are slidable mounting respectively two in the spout, two springs are arranged respectively in two in the spout, and every the one end of spring is all fixed and is corresponded on the installation piece, every the other end of spring is all fixed and is corresponded on the slider, two the first end of connecting rod is rotatable the installation respectively and is corresponded on the slider.

10. The shopping cart of claim 8, wherein a pin hole is formed in the second end of the connecting rod, a plurality of mounting pins are mounted on the movable rod and are respectively matched with the pin hole, the mounting pins are arranged along the length direction of the movable rod, and the pin hole is sleeved on one of the mounting pins.