A three-stage box trolley with a retractable cable

Abstract

The utility model relates to a three -level box dolly of cable can be taken up and pay off, belong to the technical field of construction tools, technical scheme is: the middle of car frame is equipped with platform (5), three -level box (1) is placed on the middle platform (5) of car frame, the top of car frame is equipped with driving wheel (14) and the umbrella -like gear no.

Description

Technical Field

[0001] This utility model relates to a three-stage cable-retractable trolley, belonging to the technical field of construction tools in the metallurgical industry. Background Technology

[0002] Construction sites typically require dedicated three-level distribution boxes to provide power to electrical equipment. Due to changes in work areas, the location of power supplies needs to be changed, necessitating repeated dragging of electrical cables during construction. Furthermore, the cables vary in length, requiring manual handling to place them piece by piece during splicing. After use, manual reeling in the cables is also necessary, which is time-consuming, labor-intensive, and prone to causing cable damage and safety hazards. Utility Model Content

[0003] The purpose of this invention is to provide a three-level distribution box trolley that can retract and extend cables, enabling rapid movement of the three-level distribution box on site and timely completion of cable retraction and extension operations, thereby solving the problems existing in the background technology.

[0004] The technical solution of this utility model is: A three-stage cable retractable trolley includes a frame and wheels mounted at the bottom of the frame. A platform is provided in the middle of the frame, and the three-stage cable retractor is placed on the platform. A drive wheel and a bevel gear I connected to the drive wheel are provided above the frame. A bevel gear II meshes with bevel gear I. Bevel gear II is connected to a hand crank via a connecting rod. A cable retractor mechanism is provided below the frame. Both ends of the cable retractor mechanism are mounted below the platform via bearings and pressure plates. A driven wheel is installed on the cable retractor mechanism. The drive wheel and the driven wheel are connected by a transmission belt.

[0005] The frame is also equipped with a fixing bolt, which is vertically and movable to the frame.

[0006] The fixing bolt is positioned on the U-shaped bracket by fixing screws, and the U-shaped bracket is fixed on the vehicle frame.

[0007] The lower end of the fixing bolt on the frame is pointed.

[0008] The wheels mounted at the bottom of the frame include two large wheels and two swivel wheels. The two large wheels are located at the rear of the frame, and the two swivel wheels are located at the front of the frame.

[0009] The frame has a handle on top.

[0010] The cable reeling mechanism is equipped with a junction box, which contains terminals that connect to the cable and the control switch in the three-stage box.

[0011] In the aforementioned three-level distribution box trolley capable of retracting and extending cables, the three-level distribution box is a commonly used three-level distribution box configured on construction sites, whose function is to provide power for electrical equipment; the cable winding mechanism is a commonly used cable winding device, whose function is to realize the retraction and extension of cables.

[0012] The beneficial effects of this utility model are: it can quickly move the three-level power distribution box on site, and move around to complete the cable winding and unwinding operations in a timely manner. Attached Figure Description

[0013] Figure 1 This is a front view of the present invention; Figure 2 This is a rear view of the present invention; Figure 3 This is the left view of the present invention; Figure 4 This is a schematic diagram showing the connection between the handwheel and the drive wheel of this utility model; Figure 5 This is a schematic diagram of the U-shaped bracket of this utility model; In the diagram: 1. Three-stage box; 2. Cable reel mechanism; 3. Large caster wheel; 4. Universal caster wheel; 5. Platform; 6. Fixing bolt; 7. Hand crank; 8. Hand crank handle; 9. Fixing screw; 10. Junction box; 11. Terminal block; 12. Bearing; 13. Pressure plate; 14. Drive wheel; 15. Driven wheel; 16. Drive belt; 17. Bevel gear one; 18. Bevel gear two; 19. Fixing post one; 20. Fixing post two; 21. Connecting rod; 22. U-shaped bracket; 23. Handle. Detailed Implementation

[0014] The present invention will be further described below with reference to the accompanying drawings and examples.

[0015] See attached document Figure 1-5 A three-stage cable retractable trolley includes a frame and wheels mounted at the bottom of the frame. A platform 5 is located in the middle of the frame, and the three-stage box 1 is placed on the platform 5 in the middle of the frame. A drive wheel 14 and a bevel gear 17 driven and connected to the drive wheel 14 are located above the frame. A second bevel gear 18 meshes with the first bevel gear 17. The second bevel gear 18 is connected to a hand crank 7 through a connecting rod 21. A hand crank 8 is provided on the hand crank 7. A cable retracting mechanism 2 is located below the frame. The two ends of the cable retracting mechanism 2 are mounted below the platform 5 through bearings 12 and pressure plates 13. A driven wheel 15 is installed on the cable retracting mechanism 2. The drive wheel 14 and the driven wheel 15 are connected by a transmission belt 16.

[0016] In this embodiment, refer to the appendix Figure 1-5The cable retractable three-stage trolley includes a frame, a three-stage box 1, a cable reeling mechanism 2, large wheels 3, casters 4, a platform 5, a fixing bolt 6, a hand crank 7, a hand crank handle 8, fixing screws 9, a junction box 10, a terminal block 11, a bearing 12, a pressure plate 13, a drive wheel 14, a driven wheel 15, a transmission belt 16, a bevel gear 17, a bevel gear 2 18, a fixing post 19, a fixing post 20, a connecting rod 21, a U-shaped bracket 22, and a handle 23, wherein: Three-level box 1 is a commonly used three-level distribution box configured on construction sites. Its main function is to provide power guarantee for electrical equipment.

[0017] The cable reeling mechanism 2 is a commonly used cable reeling device, whose main function is to reel in and unreel cables.

[0018] The frame is a frame structure welded from steel pipes. The wheels installed at the bottom of the frame include two large wheels 3 and two swivel wheels 4. The two large wheels 3 are located at the rear of the frame, and the two swivel wheels 4 are located at the front of the frame. A handle 23 is welded to the rear top of the frame to facilitate the movement of the vehicle.

[0019] Platform 5 is located in the middle of the frame. The three-stage box 1 is placed on platform 5, backing against the main body of the trolley. The cable reel mechanism 2 is fixed to the bottom of platform 5 at both ends by bearings 12 and pressure plates 13. A driven wheel 15 is installed on the side of the cable reel mechanism 2 and is connected to the driving wheel 14 through a transmission belt 16. The driving wheel 14 has a bevel gear 17 on its side. The bevel gear 17 meshes with the bevel gear 18 on the back of the hand plate 7. The bevel gear 18 is connected to the hand plate 7 through a connecting rod 21. The hand crank 8 is installed on the hand plate 7. Turning the hand crank 8 drives the transmission wheel 14 to rotate through the hand plate 7, bevel gear 17 and bevel gear 18.

[0020] The lower end of the fixing bolt 6 is pointed. The fixing bolt 6 is installed at the rear of the frame via the U-shaped bracket 22. The vertical position of the fixing bolt 6 can be adjusted by loosening and tightening the fixing screw 9. During on-site operation, the fixing bolt 6 can be lowered so that it is inserted into the ground, and the fixing screw 9 can be rotated to lock the position of the fixing bolt 6, thereby fixing the position of the trolley.

[0021] Junction box 10 is installed on the side of cable reel mechanism 2 and contains terminal block 11. Junction box 10 and terminal block 11 are used to connect the cable on cable reel mechanism 2 and the control switch in three-stage box 1.

[0022] Large casters 3 are installed at the rear of the trolley, and swivel casters 4 are installed at the front of the trolley. When the site environment is complex and the ground is uneven, the trolley can be pushed and pulled by the two large casters 3 at the rear. While moving, the cable can be laid out. Alternatively, while the trolley is being pushed and pulled, the handwheel 7 at the rear of the trolley can be turned. The handwheel 7 drives the bevel gear 17 connected to the bevel gear 2 through the bevel gear 2 18, which in turn drives the drive wheel 14 to rotate. The drive wheel 14 is connected to the driven wheel 15 on the side of the cable winding mechanism 2 by the transmission belt 16, which drives the cable winding mechanism 2 to rotate and perform the cable winding work.

Claims

1. A three-stage cable-retractable trolley, comprising a frame and wheels mounted at the bottom of the frame, characterized in that: A platform (5) is provided in the middle of the frame. The three-stage box (1) is placed on the platform (5) in the middle of the frame. A drive wheel (14) and a bevel gear (17) connected to the drive wheel (14) are provided above the frame. A bevel gear (18) meshes with the bevel gear (17). The bevel gear (18) is connected to the handwheel (7) through a connecting rod (21). A hand crank (8) is provided on the handwheel (7). A cable winding mechanism (2) is provided below the frame. The two ends of the cable winding mechanism (2) are installed below the platform (5) through bearings (12) and pressure plates (13). A driven wheel (15) is installed on the cable winding mechanism (2). The drive wheel (14) and the driven wheel (15) are connected by a transmission belt (16).

2. The three-stage cable-retractable trolley according to claim 1, characterized in that: The frame is also provided with a fixing bolt (6), which is vertically and movably connected to the frame.

3. The three-stage cable-retractable trolley according to claim 2, characterized in that: The fixing bolt (6) is positioned on the U-shaped bracket (22) by the fixing screw (9), and the U-shaped bracket (22) is fixed on the frame.

4. A three-stage cable-retractable trolley according to claim 2, characterized in that: The lower end of the fixing bolt (6) on the frame is pointed.

5. A three-stage cable-retractable trolley according to claim 3, characterized in that: The wheels mounted at the bottom of the frame include two large wheels (3) and two swivel wheels (4), with the two large wheels (3) located at the rear of the frame and the two swivel wheels (4) located at the front of the frame.

6. A three-stage cable-retractable trolley according to claim 4, characterized in that: The frame is equipped with a handle (23) on top.

7. A three-stage cable-retractable trolley according to claim 5, characterized in that: The cable reeling mechanism (2) is provided with a junction box (10), and the junction box (10) is provided with a terminal block (11) that is connected to the cable and the control switch in the three-level box (1).

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