Spacing-adjustable metal rack trolley

Abstract

The utility model relates to the technical field of metal material rack trolleys, in particular to a distance-adjustable metal material rack trolley which comprises a four-wheel base, four limiting rods are connected in screw holes in the four corners of the upper surface of the four-wheel base in a threaded mode, and a plurality of limiting holes are connected to the outer surfaces of the limiting rods in a sliding mode. The four limiting holes are formed in the four corners of the upper surface of the partition plate correspondingly, moving grooves are formed in the upper surfaces of the four-wheel base and the partition plate correspondingly, the left side face and the right side face of the inner wall of each moving groove are rotationally connected with a two-way lead screw, and the outer surface of each two-way lead screw is in threaded connection with two threaded sleeves correspondingly. The four corners of the cross lifting frame are driven to be far away from each other by reversing the hand wheels, then the partition plates are close to each other and meanwhile close to the four-wheel base, and the limiting rods are separated from screw holes in the upper surface of the four-wheel base by reversing the limiting rods, so that the size of the device is reduced, storage is facilitated, and the problems that an existing device is large in overall size and inconvenient to use are solved. And the storage is inconvenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to metal material frame trolley technical field, concretely relates to a spacing adjustable metal material frame trolley. BACKGROUND

[0002] Metal material frame trolley is a kind of logistics appliance for storing and carrying heavy or large goods, especially suitable for use in automobile, household appliance, machinery hardware and other industries.It is usually used with metal tray to place various parts and goods.

[0003] Chinese utility model patent publication number:“CN 210414455 U”, discloses a kind of metal raw material with discharging frame, the device is cooperated by pull plate, slide bar, slot, second movable rod, second piston, connecting pipe, first piston, spring, steering handle, second shaft, threaded column, threaded cap and pulley, so that staff can not only adjust the angle of placing box according to actual situation, but also can adjust the height of placing box according to own height, to improve the practicability of placing rack, and bring convenience for staff of different heights to take metal materials in placing rack.

[0004] Although the above device can adjust the height and angle of the device according to the height of the staff, the overall device is bulky, inconvenient to store, and there is only a single rack, the conveying of metal material is less, which affects the conveying efficiency of metal material. UTILITY MODEL CONTENT

[0005] To solve the problems raised in the above background art, the utility model provides a spacing adjustable metal material frame trolley.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a spacing adjustable metal material frame trolley, comprising a four-wheel base, four limit rods are threadedly connected in the screw holes at the four corners of the upper surface of the four-wheel base, a plurality of limit holes are slidably connected to the outer surface of the limit rods, and the four limit holes are respectively arranged at the four corners of the upper surface of the partition plate, a moving groove is formed in the upper surface of the four-wheel base and the partition plate, a bidirectional screw rod is rotatably connected to the left and right side surfaces of the inner wall of the moving groove, two threaded sleeves are respectively threadedly connected to the outer surface of the bidirectional screw rod, a slide bar is fixedly connected to the left and right side surfaces of the inner wall of the moving groove, two slide sleeves are slidably connected to the outer surface of the slide bar, the opposite sides of the two threaded sleeves and slide sleeves are fixedly connected with connecting concave pieces, and the front and back surfaces of the inner walls of the four connecting concave pieces are hingedly connected with the four corners of the cross lifting frame.

[0007] Preferably, a bevel gear b is mounted on the outer surface of the bidirectional lead screw, the outer surface of the bevel gear b meshes with the outer surface of the bevel gear c, the back side of the bevel gear c is fixedly connected to the front side of the connecting rod, and a bevel gear d is mounted on the outer surface of the connecting rod, the outer surface of the bevel gear d meshes with the outer surface of the bevel gear a.

[0008] Preferably, the left side of the bevel gear a is fixedly connected to the right end of the connecting column, and the left end of the connecting column is fixedly connected to the right side of the handwheel through the bearing installed on the left side of the inner wall of the mounting groove b.

[0009] Preferably, the mounting groove b is formed on the left side of the inner wall of the mounting groove a, and the mounting groove a is formed on the upper surface of the four-wheel base and the partition.

[0010] Preferably, the top end of the limiting rod is fixedly connected to the lower surface of the fixing plate.

[0011] Preferably, a placement box is fixed to the upper surface of both the four-wheel base and the partition.

[0012] Preferably, the upper surfaces of the four-wheel base and the partition are slidably connected to the lower surfaces of the four connecting recesses, and the opposite sides of the four connecting recesses are slidably connected to the front and back of the placement box, respectively.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention uses a reverse handwheel to move the four corners of the cross lifting frame away from each other, thereby bringing the partitions closer together and bringing the partitions closer to the four-wheel base. The reverse limit rod disengages from the screw hole on the upper surface of the four-wheel base, thus reducing the size of the device for easy storage. This solves the problem of the existing device being bulky and inconvenient to store.

[0015] This invention utilizes a handwheel to rotate a connecting column and bevel gear a. The rotation of bevel gear a drives the rotation of bevel gear d, connecting rod, and bevel gear c. The rotation of two bevel gears c drives the rotation of two bevel gears b. The rotation of two bevel gears b drives the rotation of two bidirectional lead screws. The rotation of the two bidirectional lead screws drives four threaded sleeves and four connecting recesses to move closer together. The movement of the four connecting recesses drives the four corners of two cross lifting frames to move closer together, thereby adjusting the distance between the four wheel bases and the partitions. The metal materials are classified and placed through several partitions and several placement boxes to facilitate the conveying of the metal materials. Attached Figure Description

[0016] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the mounting groove b in this utility model;

[0019] Figure 3 This is a schematic diagram of the internal structure of the movable groove in this utility model;

[0020] Figure 4 This is an enlarged structural diagram of point A in this utility model;

[0021] In the diagram: 1. Four-wheel base; 2. Partition plate; 3. Placement box; 4. Limiting rod; 5. Limiting hole; 6. Mounting slot a; 7. Mounting slot b; 8. Connecting column; 9. Handwheel; 10. Bevel gear a; 11. Sliding rod; 12. Sliding sleeve; 13. Moving slot; 14. Two-way lead screw; 15. Threaded sleeve; 16. Connecting recess; 17. Cross lifting frame; 18. Bevel gear d; 19. Bevel gear b; 20. Bevel gear c; 21. Connecting rod; 22. Fixing plate. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Example

[0024] Please see Figures 1-4 This utility model provides the following technical solution: a metal rack trolley with adjustable spacing, including a four-wheel base 1. Four limiting rods 4 are threadedly connected to the screw holes at the four corners of the upper surface of the four-wheel base 1. Several limiting holes 5 are slidably connected to the outer surface of the limiting rods 4. The four limiting holes 5 are respectively opened at the four corners of the upper surface of the partition plate 2. The upper surfaces of the four-wheel base 1 and the partition plate 2 are both provided with moving grooves 13. The left and right sides of the inner wall of the moving groove 13 are rotatably connected to bidirectional lead screws 14. The outer surface of the bidirectional lead screws 14 is threadedly connected to two threaded sleeves 15. The left and right sides of the inner wall of the moving groove 13 are fixedly connected to sliding rods 11. The outer surface of the sliding rods 11 is slidably connected to two sliding sleeves 12. The opposite sides of the two threaded sleeves 15 and the sliding sleeves 12 are fixedly connected to connecting recesses 16. The front and back sides of the inner walls of the four connecting recesses 16 are respectively hinged to the four corners of the cross lifting frame 17.

[0025] Specifically, a bevel gear b19 is installed on the outer surface of the bidirectional lead screw 14, the outer surface of the bevel gear b19 meshes with the outer surface of the bevel gear c20, the back of the bevel gear c20 is fixedly connected to the front of the connecting rod 21, and a bevel gear d18 is installed on the outer surface of the connecting rod 21, the outer surface of the bevel gear d18 meshes with the outer surface of the bevel gear a10.

[0026] Specifically, the left side of the bevel gear a10 is fixedly connected to the right end of the connecting column 8, and the left end of the connecting column 8 is fixedly connected to the right side of the handwheel 9 by the bearing installed on the left side of the inner wall of the mounting groove b7.

[0027] Rotating the handwheel 9 drives the connecting column 8 and bevel gear a10 to rotate. The rotation of bevel gear a10 drives the bevel gear d18, connecting rod 21 and bevel gear c20 to rotate. The rotation of the two bevel gears c20 drives the two bevel gears b19 to rotate. The rotation of the two bevel gears b19 drives the two double-acting lead screws 14 to rotate. The rotation of the two double-acting lead screws 14 drives the four threaded sleeves 15 and the four connecting recesses 16 to move closer to each other. The four connecting recesses 16 moving closer to each other drive the four corners of the two cross lifting frames 17 to move closer to each other, thereby adjusting the distance between the four-wheel base 1 and the partition 2.

[0028] Specifically, the mounting groove b7 is set on the left side of the inner wall of the mounting groove a6, and the mounting groove a6 is set on the upper surface of the four-wheel base 1 and the partition plate 2;

[0029] A sliding rod 11 is fixedly connected to the lower side of the moving groove 13 opened on the upper surface of the partition 2. A sliding sleeve 12 is slidably connected to the outer surface of the sliding rod 11. The cross lifting frame 17 is limited by the sliding sleeve 12 and the sliding rod 11.

[0030] Specifically, the top end of the limiting rod 4 is fixedly connected to the lower surface of the fixing plate 22;

[0031] Specifically, a placement box 3 is fixedly attached to the upper surface of both the four-wheel base 1 and the partition 2;

[0032] Specifically, the upper surfaces of the four-wheel base 1 and the partition 2 are slidably connected to the lower surfaces of the four connecting recesses 16, and the opposite sides of the four connecting recesses 16 are slidably connected to the front and back of the placement box 3, respectively.

[0033] Metal materials are sorted and placed using several partitions 2 and several placement boxes 3 to facilitate their transport.

[0034] Working principle and usage process of this utility model:

[0035] In use, this utility model is as follows:

[0036] Rotating the handwheel 9 drives the connecting column 8 and bevel gear a10 to rotate. The rotation of bevel gear a10 drives the bevel gear d18, connecting rod 21 and bevel gear c20 to rotate. The rotation of two bevel gears c20 drives the rotation of two bevel gears b19. The rotation of two bevel gears b19 drives the rotation of two double-acting screws 14. The rotation of two double-acting screws 14 drives four threaded sleeves 15 and four connecting recesses 16 to move closer to each other. The four connecting recesses 16 moving closer to each other drives the four corners of two cross lifting frames 17 to move closer to each other, thereby adjusting the distance between the four-wheel base 1 and the partition 2. The metal materials are classified and placed through several partitions 2 and several placement boxes 3 to facilitate the conveying of the metal materials.

[0037] Conversely, the reverse handwheel 9 drives the four corners of the cross lifting frame 17 away from each other, thereby bringing the partitions 2 closer together and bringing the partitions 2 closer to the four-wheel base 1. The reverse limit rod 4 disengages from the screw hole on the upper surface of the four-wheel base 1, thereby reducing the size of the device for easy storage.

[0038] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0039] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A metal rack trolley with adjustable spacing, comprising a four-wheeled base (1), characterized in that: Four limiting rods (4) are threadedly connected to the screw holes at the four corners of the upper surface of the four-wheel base (1). Several limiting holes (5) are slidably connected to the outer surface of the limiting rods (4). The four limiting holes (5) are respectively opened at the four corners of the upper surface of the partition plate (2). The upper surfaces of the four-wheel base (1) and the partition plate (2) are both provided with moving grooves (13). The left and right sides of the inner wall of the moving groove (13) are rotatably connected with bidirectional screws (14). The outer surface of the bidirectional screws (14) is threaded with two threaded sleeves (15). The left and right sides of the inner wall of the moving groove (13) are fixedly connected with sliding rods (11). The outer surface of the sliding rods (11) is slidably connected with two sliding sleeves (12). The opposite sides of the two threaded sleeves (15) and the sliding sleeves (12) are fixedly connected with connecting recesses (16). The front and back sides of the inner walls of the four connecting recesses (16) are respectively hinged to the four corners of the cross lifting frame (17).

2. The adjustable-spacing metal rack trolley according to claim 1, characterized in that: The outer surface of the bidirectional lead screw (14) is fitted with a bevel gear b (19), the outer surface of the bevel gear b (19) meshes with the outer surface of the bevel gear c (20), the back of the bevel gear c (20) is fixedly connected to the front of the connecting rod (21), the outer surface of the connecting rod (21) is fitted with a bevel gear d (18), the outer surface of the bevel gear d (18) meshes with the outer surface of the bevel gear a (10).

3. The adjustable-spacing metal rack trolley according to claim 2, characterized in that: The left side of the bevel gear a (10) is fixedly connected to the right end of the connecting column (8), and the left end of the connecting column (8) is fixedly connected to the right side of the handwheel (9) through the bearing installed on the left side of the inner wall of the mounting groove b (7).

4. The adjustable-spacing metal rack trolley according to claim 3, characterized in that: The mounting groove b (7) is opened on the left side of the inner wall of the mounting groove a (6), and the mounting groove a (6) is opened on the upper surface of the four-wheel base (1) and the partition (2).

5. The adjustable-spacing metal rack trolley according to claim 1, characterized in that: The top end of the limiting rod (4) is fixedly connected to the lower surface of the fixing plate (22).

6. The adjustable-spacing metal rack trolley according to claim 1, characterized in that: The upper surfaces of the four-wheel base (1) and the partition (2) are both fixed with a placement box (3).

7. The adjustable-spacing metal rack trolley according to claim 1, characterized in that: The upper surfaces of the four-wheel base (1) and the partition (2) are slidably connected to the lower surfaces of the four connecting recesses (16), and the opposite sides of the four connecting recesses (16) are slidably connected to the front and back sides of the placement box (3).

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