Trolley for enabling products to enter and exit from packaging box and method for enabling trolley to efficiently enter and exit from packaging box

Abstract

The trolley comprises a trolley body and trolley trundles, the trolley trundles are arranged on the trolley body in a retractable mode, and when the trolley is pushed into the packaging box, the trolley trundles are retracted; when the trolley is pushed out of the packaging box, trolley trundles are supported to the ground; the trolley trundle comprises a trundle assembly, a shifting mechanism, a trundle frame locking block mechanism, a square pipe and a locking frame. The lock frame is installed on one side of the square tube, the caster frame lock block mechanism is arranged in the square tube, the caster assembly is arranged below the square tube, and the shifting mechanism is arranged on the lock frame. When the trundle of the trolley is supported to the ground, the supporting state of the wheel of the trolley is positioned by the shifting mechanism; and when the trolley trundles are retracted, the trolley wheels are locked in a retracted state by the wheel carrier locking block mechanism. The truckles can be quickly released and retracted when the trolley enters and exits the packaging box, and the efficiency of entering and exiting the packaging box of the trolley is improved on the basis of ensuring that the trolley stably enters and exits the packaging box.

Description

Technical Field

[0001] The invention belongs to the technical field of packaging boxes, and relates to a trolley for products to enter and exit the packaging box and a method for efficiently entering and exiting the packaging box with the trolley. Background Art

[0002] Packaging boxes can be used for product storage and transportation. Since the entry and exit thresholds of packaging boxes are generally higher than the ground, products are currently transported in and out of packaging boxes by trolleys in consideration of product safety and stability during transportation. When lifting products, it is necessary to control the entry and exit of the packaging boxes by trolleys, but currently the trolleys have problems such as low efficiency in entering and exiting packaging boxes. Summary of the invention

[0003] (I) Purpose of the invention

[0004] The purpose of the present invention is to provide a trolley for products entering and exiting a packaging box and a method for efficiently entering and exiting a packaging box with a trolley, so as to solve the problem in the prior art of improving the efficiency of the trolley entering and exiting a packaging box on the basis of ensuring that the trolley enters and exits the packaging box stably.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a trolley for products entering and exiting packaging boxes, which includes: a vehicle body and trolley casters, the wheels of the trolley are retractable on the vehicle body, when the trolley pushes the packaging box, the trolley casters are retracted; when the trolley pushes the packaging box, the trolley casters are supported to the ground.

[0007] Among them, the trolley caster includes a caster assembly, a toggle mechanism, a wheel frame locking block mechanism, a square tube 12, and a locking frame 13; the locking frame 13 is installed on one side of the square tube 12, the wheel frame locking block mechanism is arranged in the square tube 12, the caster assembly is arranged below the square tube 12, and the toggle mechanism is arranged on the locking frame 13; when the trolley caster is supported to the ground, the toggle mechanism positions the supporting state of the trolley wheel; when the trolley caster is retracted, the wheel frame locking block mechanism locks the trolley wheel in the retracted state.

[0008] Among them, the caster assembly includes an aluminum core caster 1, a caster shaft 2, a U-shaped plate 3, a locking plate 4, a mounting shaft 5, a wheel frame mounting plate 6, a thrust ball bearing 7, a pressure plate 8, a non-metallic embedded hexagonal flange nut 9, a washer 10, and an axis I11; the aluminum core caster 1 is fixed to the U-shaped plate 3 through the caster shaft 2, the locking plate 4 is fixed to the U-shaped plate 3 by welding, and the U-shaped plate 3 and the mounting shaft 5 are fixed by welding; the wheel frame mounting plate 6 is inserted into the mounting shaft 5, and then the wheel frame mounting plate 6 is fixed to the mounting shaft 5 through the thrust ball bearing 7, the pressure plate 8, and the non-metallic embedded hexagonal flange nut 9; the axis I11 is fixed to the wheel frame mounting plate 6 through the washer 10, and the wheel frame mounting plate 6 can realize the rotation function through the axis I11.

[0009] The square tube 12 is sleeved on the outside of the installation shaft 5, and the lock frame 13 is connected to the square tube 12 through a mechanical connection.

[0010] Among them, the toggle mechanism includes a fixed plate 14, a toggle plate 15, a rotating shaft 16, a lower pin tube 17, a spring 18, and a lower pin assembly 19; the fixed plate 14 and the toggle plate 15 are fixed by the rotating shaft 16 to form a toggle mechanism, and the fixed plate 14 is fixed on the lock frame 13; the lower pin tube 17 and the spring 18 are sleeved on the lower pin assembly 19, and the lower pin assembly 19 and the toggle plate 15 are connected.

[0011] Among them, the wheel frame locking block mechanism includes an upper pin assembly 20, a wheel frame locking block 21, and an axis II22; the upper pin assembly 20 is fixed on the lock frame 13, the wheel frame locking block 21 and the upper pin assembly 20 are connected, and the rotation function is realized through the axis II22 and the washer.

[0012] The lock frame 13 is installed on the front side wall of the square tube 12 , and a through hole is opened on the rear side wall of the square tube 12 , through which the wheel frame lock block 21 extends out of the square tube 12 .

[0013] A fixed pad 23 is welded on the rear side wall of the square tube 12, and a caster pad 24 is arranged on the pad 23 to facilitate the placement of the caster after the caster is retracted.

[0014] The present invention also provides a method for efficiently loading and unloading a product into and out of a packaging box using a trolley, which comprises the following steps:

[0015] Step 1: Loosen the caster assembly by toggling the toggle plate 15 in the toggle mechanism, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0016] Step 2: Use the wheel frame locking block 21 in the wheel frame locking block mechanism to retract the caster assembly, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0017] Step 3: Push the trolley into the packaging box to complete the process of loading the trolley into the box;

[0018] Step 4: Loosen the wheel frame lock block 21, and support the caster assembly to the ground, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0019] Step 5: Lift the entire trolley steadily;

[0020] Step 6: Push the trolley out of the packaging box to complete the trolley's unpacking process.

[0021] (III) Beneficial effects

[0022] The above technical solution provides a trolley for products entering and exiting packaging boxes and a method for efficiently entering and exiting packaging boxes with a trolley. By adding a toggle mechanism and a wheel frame locking block to the trolley casters, the casters can be quickly released and retracted when the trolley enters and exits the packaging box, thereby ensuring that the trolley can enter and exit the packaging box stably and improving the efficiency of the trolley entering and exiting the packaging box. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the three-dimensional structure of the trolley of the present invention.

[0024] Figure 2 and Figure 3 It is a three-dimensional structural schematic diagram of the action of the casters of the trolley of the present invention.

[0025] Figure 4 It is a schematic diagram of the three-dimensional structure of the trolley with its casters folded.

[0026] In the figure: 1. aluminum core caster; 2. caster shaft; 3. U-shaped plate; 4. locking plate; 5. mounting shaft; 6. wheel frame mounting plate; 7. thrust ball bearing; 8. pressure plate; 9. non-metallic embedded hexagonal flange nut; 10. washer; 11. shaft I; 12. square tube; 13. locking frame; 14. fixing plate; 15. toggle plate; 16. rotating shaft; 17. lower pin tube; 18. spring; 19. lower pin assembly; 20. upper pin assembly; 21. wheel frame locking block; 22. shaft II; 23. cushion block; 24. caster pad. DETAILED DESCRIPTION

[0027] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0028] Reference Figures 1 to 3 As shown, the trolley for products entering and exiting the packaging box in this embodiment includes: a vehicle body and trolley casters, the wheels of the trolley are retractably arranged on the vehicle body, and when the trolley pushes the packaging box, the trolley casters are retracted; when the trolley pushes the packaging box, the trolley casters are supported to the ground.

[0029] Among them, the trolley caster includes a caster assembly, a toggle mechanism, a wheel frame locking block mechanism, a square tube 12, and a locking frame 13; the locking frame 13 is installed on one side of the square tube 12, the wheel frame locking block mechanism is arranged in the square tube 12, the caster assembly is arranged below the square tube 12, and the toggle mechanism is arranged on the locking frame 13; when the trolley caster is supported to the ground, the toggle mechanism positions the supporting state of the trolley wheel; when the trolley caster is retracted, the wheel frame locking block mechanism locks the trolley wheel in the retracted state.

[0030] The caster assembly includes an aluminum core caster 1, a caster shaft 2, a U-shaped plate 3, a locking plate 4, a mounting shaft 5, a wheel frame mounting plate 6, a thrust ball bearing 7, a pressure plate 8, a non-metallic embedded hexagonal flange nut 9, a washer 10, and an axis I11; the aluminum core caster 1 is fixed to the U-shaped plate 3 through the caster shaft 2, the locking plate 4 is fixed to the U-shaped plate 3 by welding, and the U-shaped plate 3 and the mounting shaft 5 are fixed by welding; the wheel frame mounting plate 6 is inserted into the mounting shaft 5, and then the wheel frame mounting plate 6 is fixed to the mounting shaft 5 by the thrust ball bearing 7, the pressure plate 8, and the non-metallic embedded hexagonal flange nut 9; the axis I11 is fixed to the wheel frame mounting plate 6 by the washer 10, and the wheel frame mounting plate 6 can realize the rotation function through the axis I11.

[0031] The square tube 12 is sleeved on the outside of the installation shaft 5, and the lock frame 13 is connected to the square tube 12 through a mechanical connection.

[0032] The toggle mechanism includes a fixed plate 14, a toggle plate 15, a rotating shaft 16, a lower pin tube 17, a spring 18, and a lower pin assembly 19; the fixed plate 14 and the toggle plate 15 are fixed by the rotating shaft 16 to form a toggle mechanism, and the fixed plate 14 is fixed on the lock frame 13; the lower pin tube 17 and the spring 18 are sleeved on the lower pin assembly 19, and the lower pin assembly 19 is connected to the toggle plate 15.

[0033] The wheel frame locking block mechanism includes an upper pin assembly 20, a wheel frame locking block 21, and an axis II 22; the upper pin assembly 20 is fixed on the locking frame 13, the wheel frame locking block 21 is connected to the upper pin assembly 20, and the rotation function is realized through the axis II 22 and the washer.

[0034] The lock frame 13 is mounted on the front side wall of the square tube 12 , and a through hole is provided on the rear side wall of the square tube 12 , through which the wheel frame lock block 21 extends out of the square tube 12 .

[0035] A fixed pad 23 is welded on the rear side wall of the square tube 12, and a caster pad 24 is arranged on the pad 23 to facilitate the placement of the caster after the caster is retracted.

[0036] Reference Figures 2 to 4 As shown, the method for the trolley to efficiently enter and exit the packaging box in this embodiment is to add a trolley caster structure to the trolley so that the trolley can quickly enter and exit the packaging box.

[0037] The following steps are involved:

[0038] (1) The caster assembly is loosened by the toggle plate 15 in the toggle mechanism, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0039] (2) Using the wheel frame locking block 21 in the wheel frame locking block mechanism to retract the caster assembly, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0040] (3) Push the trolley into the packaging box to complete the process of the trolley entering the box;

[0041] (4) Loosen the wheel frame lock block 21 and support the caster assembly to the ground, including the aluminum core caster 1, the caster shaft 2, the U-shaped plate 3, the locking plate 4, the mounting shaft 5, the wheel frame mounting plate 6, the thrust ball bearing 7, the pressure plate 8, the non-metallic embedded hexagonal flange nut 9, the washer 10, and the shaft I11;

[0042] (5) Lift the entire trolley stably;

[0043] (6) Push the trolley out of the packaging box to complete the trolley's unpacking process.

[0044] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A trolley for products entering and exiting packaging boxes, characterized in that: include: The vehicle body and the trolley casters, the trolley wheels are retractably arranged on the vehicle body, when the trolley pushes the packaging box, the trolley casters are retracted; when the trolley pushes the packaging box, the trolley casters are supported to the ground.

2. The trolley for products entering and exiting a packaging box as claimed in claim 1, characterized in that: The trolley caster comprises a caster assembly, a toggle mechanism, a wheel frame locking block mechanism, a square tube (12), and a locking frame (13); the locking frame (13) is installed on one side of the square tube (12), the wheel frame locking block mechanism is arranged in the square tube (12), the caster assembly is arranged below the square tube (12), and the toggle mechanism is arranged on the locking frame (13); when the trolley caster is supported on the ground, the toggle mechanism positions the supporting state of the trolley wheel; when the trolley caster is retracted, the wheel frame locking block mechanism locks the trolley wheel in the retracted state.

3. The trolley for products entering and exiting a packaging box as claimed in claim 2, characterized in that: The caster assembly comprises an aluminum core caster (1), a caster shaft (2), a U-shaped plate (3), a locking plate (4), a mounting shaft (5), a wheel frame mounting plate (6), a thrust ball bearing (7), a pressure plate (8), a non-metallic embedded hexagonal flange nut (9), a washer (10), and a shaft I (11); the aluminum core caster (1) is fixed to the U-shaped plate (3) through the caster shaft (2); the locking plate (4) is fixed to the U-shaped plate (3) by welding; the U-shaped plate (3) and the mounting shaft (5) are fixed by welding; the wheel frame mounting plate (6) is inserted into the mounting shaft (5), and then the wheel frame mounting plate (6) is fixed to the mounting shaft (5) by the thrust ball bearing (7), the pressure plate (8), and the non-metallic embedded hexagonal flange nut (9); the shaft I (11) is fixed to the wheel frame mounting plate (6) by the washer (10), and the wheel frame mounting plate (6) can realize a rotation function through the shaft I (11).

4. The trolley for products entering and exiting a packaging box as claimed in claim 3, characterized in that: The square tube (12) is sleeved on the outside of the installation shaft (5), and the lock frame (13) is connected to the square tube (12) through a mechanical connection.

5. The trolley for products entering and exiting a packaging box as claimed in claim 4, characterized in that: The toggle mechanism comprises a fixed plate (14), a toggle plate (15), a rotating shaft (16), a lower pin tube (17), a spring (18), and a lower pin assembly (19); the fixed plate (14) and the toggle plate (15) are fixed by the rotating shaft (16) to form the toggle mechanism, the fixed plate (14) is fixed on the lock frame (13); the lower pin tube (17) and the spring (18) are sleeved on the lower pin assembly (19), and the lower pin assembly (19) and the toggle plate (15) are connected.

6. The trolley for products entering and exiting a packaging box as claimed in claim 5, characterized in that: The wheel frame locking block mechanism comprises an upper pin assembly (20), a wheel frame locking block (21), and a shaft II (22); the upper pin assembly (20) is fixed on the locking frame (13), the wheel frame locking block (21) and the upper pin assembly (20) are connected, and the rotation function is realized through the shaft II (22) and the washer.

7. The trolley for products entering and exiting a packaging box as claimed in claim 6, characterized in that: The lock frame (13) is installed on the front side wall of the square tube (12), and a through hole is provided on the rear side wall of the square tube (12), through which the wheel frame lock block (21) extends out of the square tube (12).

8. The trolley for products entering and exiting a packaging box as claimed in claim 7, characterized in that: A fixed cushion block (23) is welded on the rear side wall of the square tube (12), and a caster pad (24) is arranged on the cushion block (23) to facilitate the placement of the caster after the caster is retracted.

9. A method for efficiently loading and unloading a packaging box based on the trolley for loading and unloading products in the packaging box according to claim 8, characterized in that: The following steps are involved: Step 1: Loosen the caster assembly by using the toggle plate (15) in the toggle mechanism, which includes an aluminum core caster (1), a caster shaft (2), a U-shaped plate (3), a locking plate (4), a mounting shaft (5), a wheel frame mounting plate (6), a thrust ball bearing (7), a pressure plate (8), a non-metallic embedded hexagonal flange nut (9), a washer (10), and a shaft I (11); Step 2: Using the wheel frame locking block (21) in the wheel frame locking block mechanism to retract the caster assembly, which includes an aluminum core caster (1), a caster shaft (2), a U-shaped plate (3), a locking plate (4), a mounting shaft (5), a wheel frame mounting plate (6), a thrust ball bearing (7), a pressure plate (8), a non-metallic embedded hexagonal flange nut (9), a washer (10), and a shaft I (11); Step 3: Push the trolley into the packaging box to complete the process of loading the trolley into the box; Step 4: Loosen the wheel frame locking block (21) and support the caster assembly on the ground, including the aluminum core caster (1), the caster shaft (2), the U-shaped plate (3), the locking plate (4), the mounting shaft (5), the wheel frame mounting plate (6), the thrust ball bearing (7), the pressure plate (8), the non-metallic embedded hexagonal flange nut (9), the washer (10), and the shaft I (11); Step 5: Lift the entire trolley steadily; Step 6: Push the trolley out of the packaging box to complete the trolley's unpacking process.

10. Application of the trolley according to any one of claims 1 to 8 in the field of packaging box technology.

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