Hand-cranking folding and unfolding mechanism for tarpaulin of transport vehicle

Abstract

A hand-cranking folding and unfolding mechanism for tarpaulin of a transport vehicle belongs to the technical field of covering devices and comprises a sliding block, the tarpaulin, a rocker, a driven rod, a transverse support, a longitudinal support, a driving rod, a rail frame, a pulling plate, a fluted disc, a universal joint, a swing frame, a swing seat and a tension spring, the rail frame and the transverse support are fixed on the upper side of a carriage, and the longitudinal support is fixed on the transverse support and the rail frame. The swing seat is fixed to the upper corner position of a carriage, the swing frame is hinged to the swing seat, the swing frame and the driven rod are fixed together, the spring is hung on the swing seat and the swing frame, a fluted disc is fixed to the inner side of the shaft end of the driving rod and connected with a track of the track frame in a meshed mode, pulling plates are hinged to shaft heads at the two ends of the driving rod, and sliding blocks are fixed to the pulling plates. The rocker is connected with the driving rod through a universal joint, and the two ends of the tarpaulin are fixed to the driving rod and the driven rod respectively. The tarpaulin can be folded and unfolded through the hand rocking bar, the structure is simple, and operation is convenient and fast.

Description

TECHNICAL FIELD

[0001] The utility model relates to covering device technical field, especially a kind of transport car tarp hand winding mechanism. BACKGROUND

[0002] Grain transfer machine, fertilizer spreader, muck car, agricultural trailer etc. all belong to the category of transport car, and a covering device is needed to shield the top of the car compartment during use to prevent environmental pollution caused by material splashing inside the car compartment and to prevent rainwater from falling into the car compartment. The industry usually uses manual tarp covering to shield the top of the car compartment. Workers climb on and off the car compartment, which is dangerous and labor-intensive, reducing work efficiency. Therefore, a transport car tarp hand winding mechanism is proposed. SUMMARY

[0003] In view of the deficiencies in the prior art, the utility model provides a transport car tarp hand winding mechanism, which can quickly wind and unwind the tarp on the ground by hand.

[0004] The technical scheme of the utility model is as follows: a transport car tarp hand winding mechanism, comprising a sliding block, a tarp, a rocker, a driven rod, a horizontal support, a vertical support, a driving rod, a track frame, a pull plate, a gear disc, a universal joint, a swing frame, a swing seat, a tension spring, two track frames are fixed to the front and rear ends of the upper side of the car compartment, a plurality of horizontal supports are installed between the two swing frames at the upper end of the car compartment, the vertical support is fixed to the horizontal support and the track frame, the swing seat is fixed to the front and rear upper corner positions on one side of the car compartment, one end of the swing frame is hinged to the first shaft of the swing seat, the other end of the swing frame is fixed to the driven rod, one end of the tension spring is hung on the second shaft of the swing seat, the other end of the tension spring is hung on the hanging point of the swing frame, the gear disc is fixed to the inner side of the shaft end of the driving rod, the gear disc is connected with the track gear of the track frame, the pull plate is hinged to the shaft head at both ends of the driving rod, the sliding block is arranged below the track of the track frame and fixed to the other end of the pull plate, the rocker is connected to the driving rod through the universal joint, and the two ends of the tarp are fixed to the driving rod and the driven rod respectively.

[0005] The utility model has the advantages of simple structure and convenient operation. BRIEF DESCRIPTION OF DRAWINGS

[0006] Figure 1 is a structural schematic diagram of the utility model.

[0007] Figure 2 is a structural schematic diagram of the utility model installed on a transport car.

[0008] Figure 3 is a structural schematic diagram of the swing seat of the utility model.

[0009] Figure 4 is a structural schematic diagram of the track frame of the utility model.

[0010] Fig. 5 is a schematic diagram of the active rod structure of the present application.

[0011] Fig. 6 is a schematic diagram of the partial structure of the active rod shaft head position A of the present application.

[0012] Fig. 7 is a schematic diagram of the partial structure of the swing frame position B of the present application.

[0013] Fig. 8 is a schematic diagram of the pull plate structure of the present application.

[0014] In the figure: 1, carriage; 2, sliding block; 3, tarpaulin; 4, rocker; 5, driven rod; 6, horizontal support; 7, vertical support; 8, active rod; 9, track frame; 10, pull plate; 11, toothed disc; 12, universal joint; 13, swing frame; 14, swing seat; 15, tension spring; 16, track; 17, shaft head; 51, first shaft; 52, second shaft; 53, hanging point. DETAILED DESCRIPTION

[0015] Referring to Figs. 1 to 8, the technical solution of the present application is as follows: a tarpaulin hand-operated folding and unfolding mechanism for a transport vehicle, comprising a sliding block 2, a tarpaulin 3, a rocker 4, a driven rod 5, a horizontal support 6, a vertical support 7, an active rod 8, a track frame 9, a pull plate 10, a toothed disc 11, a universal joint 12, a swing frame 13, a swing seat 14, a tension spring 15, two track frames 9 are fixed to the front and rear ends of the upper side of a carriage 1, a plurality of horizontal supports 6 are installed between the two swing frames 13 at the upper end of the carriage 1, the vertical support 7 is fixed to the horizontal support 6 and the track frame 9, the swing seat 14 is fixed to the front and rear upper corner positions on one side of the carriage 1, one end of the swing frame 13 is hinged to the first shaft 51 of the swing seat 14, the other end of the swing frame 13 is fixed together with the driven rod 5, one end of the tension spring 15 is hung on the second shaft 52 of the swing seat 14, the other end of the tension spring 15 is hung on the hanging point 53 of the swing seat 14, the inner side of the shaft end 17 of the active rod 8 is fixed with the toothed disc 11, the toothed disc 11 is in gear connection with the track 16 of the track frame 9, the pull plate 10 is hinged to the shaft head 17 at both ends of the active rod 8, the sliding block 2 is arranged below the track 16 of the track frame 9 and is fixed to the other end of the pull plate 10, the rocker 4 is connected to the active rod 8 through the universal joint 12, and the two ends of the tarpaulin 3 are fixed to the active rod 8 and the driven rod 5, respectively.

Claims

1. A hand-cranked tarpaulin raising and lowering mechanism for a transport vehicle, characterized in that: The system includes a slider, tarpaulin, rocker arm, driven rod, horizontal support, vertical support, driving rod, track frame, pull plate, gear plate, universal joint, swing frame, swing seat, and tension spring. Two track frames are fixed to the front and rear ends of the upper side of the carriage. Multiple horizontal supports are installed between the two swing frames on the upper end of the carriage. The vertical support is fixed to the horizontal supports and track frames. The swing seat is fixed at the front and rear upper corners of one side of the carriage. One end of the swing frame is hinged to the first shaft of the swing seat, and the other end of the swing frame is fixed to the driven rod. One end of the tension spring is hung on the second shaft of the swing seat, and the other end of the tension spring is hung on the hook point of the swing frame. A gear plate is fixed to the inner side of the shaft end of the driving rod, and the gear plate meshes with the track of the track frame. Pull plates are hinged to the shaft ends of both ends of the driving rod. The slider is set below the track of the track frame and fixed to the other end of the pull plate. The rocker arm is connected to the driving rod through a universal joint. The two ends of the tarpaulin are fixed to the driving rod and the driven rod, respectively.

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