Novel shopping cart bag and use method thereof

Abstract

The invention relates to the technical field of folding shopping carts, in particular to a novel shopping cart bag which comprises a cart plate, moving wheels arranged at the lower end of the cart plate, a pull rod installed at the front end of the cart plate and a storage bag placed at the upper end of the cart plate. A rotating shaft is arranged on the front side of the trolley plate, a protective sleeve jacking support is rotationally connected to the rotating shaft, the lower end of the pull rod is inserted into the protective sleeve jacking support and fixed, a turning plate is clamped to the side end of the protective sleeve jacking support, two crankshafts are symmetrically arranged at the two ends of the front side of the trolley plate, and the crankshafts penetrate through a fixing plate on the trolley plate and are fixedly connected with the turning plate. The crankshaft is sleeved with a wheel support plate, and the wheel support plate is rotationally connected with the moving wheels. The problem that an existing shopping cart is inconvenient to carry and store is solved. Meanwhile, when the shopping cart bag is unfolded, operation is easy, and the time of a user is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of foldable shopping carts, in particular to a novel shopping cart bag and a use method thereof. Background Art

[0002] With the accelerated development of society and economy, people's living standards are improving day by day, and the demand for daily necessities is becoming more and more. Nowadays, when shopping in the market, most people use various plastic bags as a means of carrying things. However, plastic bags have disadvantages such as non-degradability, limited capacity, and easy to break, and have been opposed by people for many years. In addition, a handbag cannot hold much and is bulky, which is especially beyond the reach of the elderly. If you use a trolley, it is not easy to carry, and there is nowhere to put it after use due to its large size. Another Chinese patent 202420991480.1 of the applicant discloses "A Portable Shopping Cart Bag", with authorization announcement number CN222005120U. The patent includes a vehicle plate, a movable wheel installed at the lower part of the vehicle plate, a stretching rod arranged at the upper part of the vehicle plate, and a storage bag. The movable wheel is installed at the front end of the vehicle plate through a hinge assembly, and two movable wheels are symmetrically arranged. A V-shaped groove is opened in the middle part of the vehicle plate along the length direction, and the left and right ends of the V-shaped groove are rotatably connected with supporting feet through a fixed sleeve. The rear end of the V-shaped groove is connected to a U-shaped groove, and a sheath top support is inserted in the U-shaped groove. The sheath top support is sleeved on the lower part of the stretching rod, and a connecting shaft passes through the stretching rod, the sheath top support and the U-shaped groove to make the stretching rod and the sheath top support relatively fixed and rotatably connected to the U-shaped groove. A plurality of buckles are equidistantly installed on the back side of the storage bag along the vertical direction, and the storage bag is tied to the stretching rod through the buckles. The above disclosed technical solution proposes a foldable shopping cart, but the operation of the shopping cart is relatively cumbersome when folding and unfolding, especially multiple steps are required to unfold the shopping cart, and it cannot be unfolded and used quickly, which wastes a lot of time and is inconvenient to use. Summary of the invention

[0003] The purpose of the present invention is to provide a new shopping cart bag and a method of using the same to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a new type of shopping cart bag, comprising a cart plate, a movable wheel arranged at the lower end of the cart plate, a pull rod installed at the front end of the cart plate and a storage bag placed on the upper end of the cart plate, a slide rail is arranged at the lower end of the cart plate, a rotating shaft is slidably connected to the slide rail, a sheath top support is rotatably connected to the rotating shaft, the lower end of the pull rod is inserted into the sheath top support and fixed, a turning plate is clamped at the side end of the sheath top support, two crankshafts are symmetrically arranged at the two ends of the front side of the cart plate, the crankshaft passes through the fixed plate on the cart plate and is fixedly connected to the turning plate, a wheel bracket plate is sleeved on the crankshaft, and the wheel bracket plate is rotatably connected to the movable wheel.

[0005] Preferably, a first positioning hole is provided on the crankshaft, a second positioning hole is provided on the wheel bracket plate at a position corresponding to the first positioning hole, a compression spring is placed in the first positioning hole, a button is clamped in the second positioning hole, and a pin is provided between the button and the compression spring.

[0006] With the above design, when the wheel support plate frame rotates around the crankshaft to a certain angle, the pin pops out to fix and lock the wheel support plate frame and the crankshaft.

[0007] Preferably, a positioning magnet is provided at the connection between the crankshaft and the wheel support plate, and the positioning magnet can enable the wheel support plate to rotate to a specific angle on the crankshaft.

[0008] With the above design, when the wheel bracket plate rotates on the crankshaft, it is affected by the magnetic force of the positioning magnet and can automatically rotate to a specific angle, so that the first positioning hole and the second positioning hole are aligned so that the pin pops out and locks the moving wheel.

[0009] Preferably, a fixing sleeve is provided at the front end of the storage bag, the fixing sleeve is sleeved on the pull rod, a zipper is installed at the middle position of the fixing sleeve, and a storage bag is fixedly connected to the rear end of the storage bag.

[0010] With the above structural design, the storage bag is fixed to the pull rod through the fixing sleeve, so that the storage bag can be stably placed on the vehicle board.

[0011] Preferably, two clamping buttons are symmetrically arranged on the side ends of the sheath support, and a bayonet is provided on the turning plate at a position relative to the clamping buttons, and the clamping button can be clamped in the bayonet.

[0012] With the above structural design, through the cooperation of the button and the slot, when the pull rod is pulled out from the bottom of the vehicle plate, the button on the jacket top support is just inserted into the slot of the turning plate, and the turning plate can rotate with the jacket top support.

[0013] Preferably, a locking assembly is provided at the upper end of the turning plate to be fixed to the vehicle plate, and the locking assembly includes a latch and a return spring sleeved on the latch, and the latch passes through the turning plate and is inserted into the fixed plate.

[0014] With the above structural design, when the pull rod is rotated to be perpendicular to the vehicle plate, the latch locks the pull rod and the vehicle plate, so that the pull rod remains in an upright state and prevents the pull rod from automatically folding back after being pulled up and disengaging from the manual control.

[0015] Preferably, a shift block is fixedly connected to the side end of the wheel bracket plate, and stop blocks are symmetrically fixedly connected to both sides of the bottom of the vehicle plate.

[0016] With the above structural design, when the crankshaft rotates, the shift block on the wheel support plate frame collides with the stopper of the vehicle plate, causing the wheel support plate frame to automatically rotate around the crankshaft, thereby eliminating the need to manually rotate the moving wheel to an upright state, simplifying the steps of unfolding the shopping cart and facilitating operation.

[0017] Preferably, a support leg is rotatably connected to the lower end of the vehicle plate, and the support leg is connected to the lower end of the crankshaft via a connecting rod.

[0018] With the above structural design, during the rotation of the crankshaft, the crankshaft pulls the outrigger out from the lower end of the vehicle plate through the connecting rod, thereby completing the automatic opening of the outrigger.

[0019] A method for using a new shopping cart bag, the method comprising:

[0020] When folding in the unfolded state, the zipper on the fixed sleeve is opened to separate the storage bag from the pull rod. After the pull rod is retracted, the pull rod is pulled downward while the latch is pulled. During the rotation of the pull rod around the rotating shaft, the cover top support, the turning plate and the crankshaft are driven to rotate at the same time, and the legs are also driven to be folded under the vehicle plate. The pull rod is pushed to move the pull rod and the cover top support to the bottom of the vehicle plate along the slide rail, and the button on the wheel support frame is pressed to push the pin into the first positioning hole, and the moving wheel is folded to the lower end of the vehicle plate, and the storage bag is laid on the vehicle plate, and the upper part of the storage bag is folded under the vehicle plate, and the zipper on the storage bag is opened, and the bag cover of the storage bag is flipped from the top of the vehicle plate to the bottom of the vehicle plate, and the storage bag, vehicle plate, pull rod, moving wheel and legs are all wrapped up, and the zipper of the storage bag is zipped up to form a vehicle bag;

[0021] When unfolding from the folded state, unzip the storage bag and unfold the storage bag and place it on the vehicle board, pull the pull rod out from the bottom of the vehicle board, and the button on the top support of the protective cover will automatically snap into the slot of the turning plate. Turn the pull rod to be perpendicular to the vehicle board. At this time, the latch will fix the pull rod and the vehicle board together. When the turning plate is rotated by the pull rod, the crankshaft rotates at the same time, and the shift block on the wheel support plate frame collides with the stopper of the vehicle board. The wheel support plate frame rotates around the crankshaft so that the positioning magnetic blocks collide and adsorb, and the pin pops out to fix the wheel support plate frame and the crankshaft together. At this time, the moving wheel is vertical to the vehicle board, and then the storage bag is fixed to the pull rod through the fixing sleeve.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] The shopping cart bag is very small and light after being stored. The bag is easy to use and can be folded up for carrying or storage, thus solving the problem of inconvenience in carrying and storing the existing shopping carts. At the same time, the shopping cart bag is easy to operate when unfolding and can be quickly unfolded when needed, thus saving the time of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 is a side view of the present invention;

[0025] Figure 2 It is a front view of the present invention;

[0026] Figure 3 It is a rear view of the present invention;

[0027] Figure 4 It is a schematic diagram of a folded state of a part of the structure of the present invention;

[0028] Figure 5 It is a schematic diagram of the unfolded state of a part of the structure of the present invention;

[0029] Figure 6 It is a schematic diagram of the bottom structure of the vehicle panel of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the sheath jacking support of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the turning plate of the present invention;

[0032] Fig. 9 It is a structural schematic diagram of the wheel support plate frame of the present invention;

[0033] Fig.10 It is a structural schematic diagram of the crankshaft of the present invention;

[0034] Fig.11 For the present invention Figure 2 Partial cross-sectional view at A in the middle;

[0035] Fig.12 For the present invention Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0036] Fig.13 For the present invention Figure 2 Sectional view at C in the middle;

[0037] Fig.14 It is a schematic diagram of the structure of the folded and stored device of the present invention. DETAILED DESCRIPTION

[0038] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0039] See also Figures 1 to 14The present invention provides a technical solution: a new type of shopping cart bag, including a car plate 3, a moving wheel 5 arranged at the lower end of the car plate 3, a pull rod 4 installed at the front end of the car plate 3 and a storage bag 1 placed at the upper end of the car plate 3. The car plate 3 is made of aluminum alloy material and adopts a hollow design to reduce the weight of the shopping cart and facilitate carrying. A slide rail 301 is arranged at the lower end of the car plate 3. The slide rail 301 is symmetrically arranged along the central axis of the car plate 3. A rotating shaft is slidably connected to the slide rail 301. The two ends of the rotating shaft extend into the two slide rails 301 respectively. A sheath top support 7 is rotatably connected to the rotating shaft. The sheath support 7 is a connected cylindrical structure with a bottom seal. The lower end of the pull rod 4 is inserted into the sheath support 7 and fixed to the sheath support 7 through a rotating shaft. The pull rod 4 has a telescopic function. The side end of the sheath support 7 is clamped with a turning plate 9. Two crankshafts 11 are symmetrically arranged at both ends of the front side of the vehicle plate 3. The crankshaft 11 passes through the fixed plate 302 on the vehicle plate 3 and is fixedly connected to the turning plate 9. The folding plates at both ends of the turning plate 9 and the crankshaft 11 are fixed by screws. The crankshaft 11 is sleeved with a wheel bracket plate 10, and the wheel bracket plate 10 is rotatably connected to the moving wheel 5. Velcro is installed at the position where the vehicle plate 3 contacts the storage bag 1 to ensure that the storage bag 1 can be stably placed on the vehicle plate 3.

[0040] Two discs are fixedly connected to the crankshaft 11. The discs are located at the upper and lower ends of the wheel bracket plate 10 and are fixed to the crankshaft 11 by screws. The two discs prevent the wheel bracket plate 10 from moving along the length direction of the crankshaft 11, and play a limiting role. A first positioning hole 1101 is provided on the crankshaft 11, and a second positioning hole 1002 is provided on the wheel bracket plate 10 at a position corresponding to the first positioning hole 1101. A compression spring 15 is placed in the first positioning hole 1101, and a button cover is threadedly connected to the opening of the second positioning hole 1002. A button 17 is placed in the second positioning hole 1002, and the upper end of the button 17 extends out of the button cover. A pin 16 is provided between the button 17 and the compression spring 15, and the pin 16 can be completely pushed into the first positioning hole 1101 by the button 17.

[0041] A positioning magnet 14 is provided at the connection between the crankshaft 11 and the wheel bracket plate 10. Two mutually attracting positioning magnets 14 are fixed on the crankshaft 11 and the wheel bracket plate 10 respectively. The positioning magnet 14 can make the wheel bracket plate 10 rotate to a specific angle on the crankshaft 11, so that the moving wheel 5 is perpendicular to the vehicle plate 3.

[0042] A fixing sleeve 8 is provided at the front end of the storage bag 1, and the fixing sleeve 8 is sleeved on the pull rod 4. A zipper is installed in the middle position of the fixing sleeve 8, and the storage bag 1 can be separated from the pull rod 4 by pulling the zipper. A storage bag 2 is installed at the rear end of the storage bag 1. The size of the storage bag 2 is larger than the vehicle plate 3. Zippers are installed on the upper, left and right sides of the storage bag 2, so that the storage bag 2 can be turned from the inside out to completely cover the entire vehicle plate 3. A handle is installed on the inner upper end of the storage bag 2, which is convenient for users to carry after folding and storing it into a vehicle bag state.

[0043] Two locking buttons 701 are symmetrically arranged at the side ends of the sheath support 7 , and a bayonet 901 is provided on the turning plate 9 at a position corresponding to the locking button 701 , and the locking button 701 can be engaged in the bayonet 901 .

[0044] The upper end of the turning plate 9 is provided with a locking assembly fixed to the vehicle plate 3. The locking assembly includes a latch 12 and a return spring 13 sleeved on the latch 12. The latch 12 is fixedly connected to a limit plate. The return spring 13 is located between the limit plate and the connecting block 902. The latch 12 passes through the connecting block 902 on the turning plate 9 and is inserted into the fixed plate 302. One end of the latch 12 inserted into the fixed plate 302 is cut so that it has an inclined surface. When the pull rod 4 rotates to be perpendicular to the vehicle plate 3, the latch 12 with the inclined surface can automatically extend into the fixed plate 302, fixing the turning plate 9 and the vehicle plate 3 relatively, so that the pull rod 4 remains in an upright state when the shopping cart is fully unfolded.

[0045] The side ends of the wheel support plate 10 are fixedly connected with shifting blocks 1001, and the bottom sides of the vehicle plate 3 are symmetrically fixedly connected with stoppers 303. When the crankshaft 11 rotates, the shifting blocks 1001 on the wheel support plate frame 10 collide with the stoppers 303 of the vehicle plate 3, so that the wheel support plate frame 10 automatically rotates around the crankshaft 11, so that there is no need to manually turn the moving wheel 5 to an upright state, which simplifies the unfolding steps of the shopping cart and facilitates operation.

[0046] The lower end of the vehicle plate 3 is rotatably connected with a leg 6, and the shape of the leg 6 is U-shaped. The ends of the two side arms of the leg 6 are rotatably connected to the side wall of the vehicle plate 3. The two side arms of the leg 6 are rotatably connected with a connecting rod 601, and the other end of the connecting rod 601 is rotatably connected to the lower end of the crankshaft 11. During the rotation of the crankshaft 11, the crankshaft 11 pulls the leg 6 out from the lower end of the vehicle plate 3 through the connecting rod 601, completing the automatic opening of the leg 6.

[0047] A method for using a new shopping cart bag, the method comprising:

[0048] When folding in the unfolded state, unzip the fixed sleeve 8 to separate the storage bag 1 from the pull rod 4. After the pull rod 4 is retracted, pull the latch 12 and press the pull rod 4 downward. The pull rod 4 rotates around the shaft, driving the sleeve top support 7, the turning plate 9 and the crankshaft 11 to rotate at the same time, and also driving the support legs 6 to be retracted under the vehicle plate 3. Push the pull rod 4 to move the pull rod 4 and the sleeve top support 7 along the slide rail 301 to the bottom of the vehicle plate 3, and press the wheel support frame 1. 0 pushes the pin 16 into the first positioning hole 1101, folds the moving wheel 5 to the lower end of the vehicle board 3, lays the storage bag 1 on the vehicle board 3, folds the upper part of the storage bag 1 under the vehicle board 3, opens the zipper on the storage bag 2, flips the cover of the storage bag 2 from the upper part of the vehicle board 3 to the lower part of the vehicle board 3, wraps up the storage bag 1, the vehicle board 3, the pull rod 4, the moving wheel 5 and the supporting leg 6, and zips up the storage bag 2 to form a vehicle bag;

[0049] When unfolding from the folded state, unzip the storage bag 2 and unfold the storage bag 1 and place it on the vehicle plate 3, pull the pull rod 4 out from the bottom of the vehicle plate 3, and the button 701 on the protective cover top support 7 automatically snaps into the snap-in 901 of the turning plate 9, and rotates the pull rod 4 to be perpendicular to the vehicle plate 3. At this time, the latch 12 fixes and locks the pull rod 4 and the vehicle plate 3. When the turning plate 9 is driven by the pull rod 4 to rotate, the crankshaft 11 rotates at the same time, and the shift block 1001 on the wheel support plate frame 10 collides with the stop block 303 of the vehicle plate 3. The wheel support plate frame 10 rotates around the crankshaft 11 to make the positioning magnetic block 14 collide and be adsorbed, and the pin 16 pops out to fix and lock the wheel support plate frame 10 and the crankshaft 11. At this time, the moving wheel 5 is in a vertical state with the vehicle plate 3, and then the storage bag 1 is fixed to the pull rod 4 through the fixing sleeve 8.

[0050] The contents not described in detail in this specification belong to the prior art known to the professional and technical personnel in this field. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for the technical solutions described in the aforementioned embodiments to be modified, or some of the technical features thereof to be replaced by equivalents, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A new type of shopping cart bag, comprising a car plate (3), a moving wheel (5) arranged at the lower end of the car plate (3), a pull rod (4) installed at the front end of the car plate (3) and a storage bag (1) placed at the upper end of the car plate (3), characterized in that: A slide rail (301) is provided at the lower end of the vehicle plate (3), a rotating shaft is slidably connected to the slide rail (301), a sheath top support (7) is rotatably connected to the rotating shaft, the lower end of the pull rod (4) is inserted into the sheath top support (7) and fixed, a turning plate (9) is clamped on the side end of the sheath top support (7), two crankshafts (11) are symmetrically provided at both ends of the front side of the vehicle plate (3), the crankshaft (11) passes through the fixed plate (302) on the vehicle plate (3) and is fixedly connected to the turning plate (9), a wheel bracket plate (10) is sleeved on the crankshaft (11), and the wheel bracket plate (10) is rotatably connected to the moving wheel (5).

2. A new type of shopping cart bag according to claim 1, characterized in that: The crankshaft (11) is provided with a first positioning hole (1101), the wheel bracket plate (10) is provided with a second positioning hole (1002) at a position corresponding to the first positioning hole (1101), a compression spring (15) is placed in the first positioning hole (1101), a button (17) is clamped in the second positioning hole (1002), and a pin (16) is provided between the button (17) and the compression spring (15).

3. A new type of shopping cart bag according to claim 1 or 2, characterized in that: A positioning magnetic block (14) is provided at the connection between the crankshaft (11) and the wheel bracket plate (10), and the positioning magnetic block (14) can enable the wheel bracket plate (10) to rotate on the crankshaft (11) to a specific angle.

4. A new type of shopping cart bag according to claim 1, characterized in that: The front end of the storage bag (1) is provided with a fixing sleeve (8), the fixing sleeve (8) is sleeved on the pull rod (4), a zipper is installed in the middle position of the fixing sleeve (8), and the rear end of the storage bag (1) is fixedly connected to the storage bag (2).

5. According to claim 1, the new shopping cart bag is characterized by: Two locking buttons (701) are symmetrically arranged at the side ends of the sheath top support (7), and a bayonet (901) is provided on the turning plate (9) at a position relative to the locking buttons (701), and the locking buttons (701) can be locked in the bayonet (901).

6. A new type of shopping cart bag according to claim 1, characterized in that: A locking assembly is provided at the upper end of the turning plate (9) and fixed to the vehicle plate (3). The locking assembly comprises a latch (12) and a return spring (13) sleeved on the latch (12). The latch (12) passes through the turning plate (9) and is inserted into the fixed plate (302).

7. A new type of shopping cart bag according to claim 1, characterized in that: A shift block (1001) is fixedly connected to the side end of the wheel support plate (10), and stop blocks (303) are symmetrically fixedly connected to both sides of the bottom of the vehicle plate (3).

8. The new shopping cart bag according to claim 1, characterized in that: The lower end of the vehicle plate (3) is rotatably connected to a support leg (6), and the support leg (6) is connected to the lower end of the crankshaft (11) via a connecting rod (601).

9. A method for using a new type of shopping cart bag according to any one of claims 1 to 8, characterized in that: The method comprises: When folding in the unfolded state, the zipper on the fixed sleeve (8) is opened to separate the storage bag (1) from the pull rod (4). After the pull rod (4) is retracted, the latch (12) is pulled while the pull rod (4) is pressed downward. The pull rod (4) rotates around the rotating shaft, driving the cover top support (7), the turning plate (9) and the crankshaft (11) to rotate at the same time, and also driving the support legs (6) to be retracted under the vehicle plate (3). The pull rod (4) is pushed to move the pull rod (4) and the cover top support (7) along the slide rail (301) to the bottom of the vehicle plate (3), and the wheel support frame (10) is pressed. The button (17) on the vehicle board (3) is pressed to push the pin (16) into the first positioning hole (1101), the moving wheel (5) is folded to the lower end of the vehicle board (3), the storage bag (1) is laid on the vehicle board (3), the upper part of the storage bag (1) is folded to the lower part of the vehicle board (3), the zipper on the storage bag (2) is opened, the bag cover of the storage bag (2) is turned over from the upper part of the vehicle board (3) to the lower part of the vehicle board (3), the storage bag (1), the vehicle board (3), the pull rod (4), the moving wheel (5) and the supporting leg (6) are all wrapped up, and the zipper of the storage bag (2) is closed to form a vehicle bag; When unfolding the storage bag (2) from the folded state, unzip the storage bag (2) and unfold the storage bag (1) and place it on the vehicle board (3). Pull the pull rod (4) out from the bottom of the vehicle board (3), and the button (701) on the top support (7) of the sheath automatically snaps into the slot (901) of the turning plate (9). Rotate the pull rod (4) to be perpendicular to the vehicle board (3). At this time, the latch (12) fixes and locks the pull rod (4) and the vehicle board (3). When the turning plate (9) is rotated by the pull rod (4), When the crankshaft (11) rotates, the crankshaft (11) rotates simultaneously, the shifting block (1001) on the wheel support frame (10) collides with the stopper (303) of the vehicle plate (3), the wheel support frame (10) rotates around the crankshaft (11) so that the positioning magnetic block (14) collides and is adsorbed, the pin (16) pops out, and the wheel support frame (10) and the crankshaft (11) are fixed and locked, at which time the moving wheel (5) and the vehicle plate (3) are in a vertical state, and then the storage bag (1) is fixed to the pull rod (4) through the fixing sleeve (8).

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