CN100420591C

CN100420591C - Installation for lifting vehicle roof

Info

Publication number: CN100420591C
Application number: CNB2005100347997A
Authority: CN
Inventors: 曾剑峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-05-30
Filing date: 2005-05-30
Publication date: 2008-09-24
Anticipated expiration: 2025-05-30
Also published as: CN1872585A

Abstract

The present invention relates to a device lifting a top cover in a trailer. The present invention is characterized in that the present invention comprises a lifting frame, a lifting wheel, two sets of connecting rod mechanisms with a left and a right structures and a transmission mechanism, wherein each connecting rod mechanism comprises a lifting arm, a regulating pipe, a connecting arm, and a moving arm; the lifting frame is fixedly connected with a trailer body; one end part of the lifting arm is hinged with the top of the lifting frame, and the other end part is fixedly connected with the lifting wheel. One end part of the connecting arm is hinged with the bottom of the lifting frame, and the other end part is hinged with one end part of the regulating pipe; the other end part of the regulating pipe is hinged with the lifting arm. One end of the moving arm is hinged with the middle part of the connecting arm, and the other end is connected with the transmission mechanism arranged at the bottom of the lifting frame in a drive mode. The present invention has the advantages that the small stroke generates the large stroke through the connecting rod mechanisms, and the rotary motion is converted to the up and down motion; the device is simple in structure and convenient in operation.

Description

Lifting device for trailer top cover

Technical field

The present invention relates to a kind of covering for roofs lifting mechanism, the device that the lifting top cover is used in especially a kind of trailer.

Background technology

At present, the part trailer can reduce top cover when towing, travel with lower height, reduces windage and improves crossing ability; And can promote top cover when being necessary, and enlarge internal space, give full play to its functions of use.The device of existing multiple lifting trailer top cover, version are comparatively complicated, and cost is higher.

US Patent: US6086134A, disclose a kind of name and be called " lifting device for trailer top cover ", its patent disclosure day: on July 11st, 2000, this lifting device for trailer top cover, structure comprises left and right two cover connecting rod mechanisms, and left and right two cover connecting rod mechanisms are provided with sliding sleeve, and sliding sleeve is placed on respectively on the slide-bar, covering for roofs is arranged on the upper end of left and right two cover connecting rod mechanisms, and the lifting of covering for roofs is made relative horizontal direction by the sliding sleeve on the left and right two cover connecting rod mechanisms along slide-bar and slided realization.The lifting device for trailer top cover of this structure has the following disadvantages: because left and right two cover connecting rod mechanisms have used long push rod, directly promote the covering for roofs lifting, cause its overall volume bigger; Moreover, the covering for roofs lifting, push rod needs bigger stroke to realize, also brings very big trouble for operation.

Summary of the invention

The objective of the invention is to overcome above-mentioned the deficiencies in the prior art part, and a kind of lifting device for trailer top cover is provided, this apparatus structure compactness, easy and simple to handle.

The technical solution adopted for the present invention to solve the technical problems is: lifting device for trailer top cover, two cover connecting rod mechanism and the transmission devices that comprise lifting frame, lifting wheel, left and right sides structure, wherein connecting rod mechanism comprises lift arm, adjusts pipe, connecting arm and movable arm, lifting frame is captiveed joint with vehicle body, one end of lift arm is articulated in the top of lifting frame, captives joint with the lifting wheel in the other end; Connecting arm one end is articulated in the bottom of lifting frame, and the other end is hinged with an end of adjusting pipe, and the other end and the lift arm of adjusting pipe are hinged; Movable arm one end is articulated in the middle part of connecting arm, and the other end drives and connects the transmission device that is arranged on the lifting frame bottom; Described transmission device comprises left-handed ball screw assembly,, dextrorotation ball screw assembly, and transmission connecting mechanism, transmission connecting mechanism is a connecting rod assembly, captive joint with the dextrorotation ball screw assembly, with left-handed ball screw assembly, respectively in the connecting rod assembly two ends, left-handed ball screw assembly, and dextrorotation ball screw assembly, are joined together by transmission connecting mechanism.

Also be provided with stabilizing mechanism, described stabilizing mechanism comprises nut permanent seat, bearing roller and limited roller, the nut permanent seat is captiveed joint with the feed screw nut, bearing roller is arranged on the nut permanent seat and with leading screw and offsets, and limited roller is arranged on the nut permanent seat and offsets with the leading screw cover outside bottom surface of ball screw assembly.

Also be provided with spring assist mechanism, described spring assist mechanism comprises moving casing and the inside and outside spring of being made up of inner sleeve and outer tube, and inside and outside spring housing is connected on the moving casing, and the block of two ends and moving casing offsets; One end and the lifting frame of moving casing are hinged, and the other end is hinged with the adjustment pipe.

Also be provided with the overload protection arrangement of clutch that comprises first connector and second connector, described first connector is captiveed joint with the leading screw of ball screw assembly,, and second connector is connected with the propulsive effort input media.

Also be provided with electronic spare interface, described electronic spare interface is connected with driving device.

The invention has the beneficial effects as follows, realize that by connecting rod mechanism little stroke produces big stroke, rotatablely move to be converted to move up and down, and the apparatus structure compactness, easy and simple to handle.

Description of drawings

Fig. 1 is a lifting status architecture scheme drawing of the present invention.

Fig. 2 is a receiving state structural representation of the present invention.

Fig. 3 is a connecting rod mechanism scheme drawing of the present invention.

Fig. 4 is a ball screw assembly, scheme drawing of the present invention.

Fig. 5 is Fig. 4 A-A cutaway view.

Fig. 6 is a power assistant spring structural scheme of mechanism of the present invention.

Fig. 7 is an overload protection arrangement of clutch scheme drawing of the present invention.

The specific embodiment

The present invention is further described below in conjunction with drawings and Examples.

As Fig. 1 to Fig. 3, lifting device for trailer top cover comprises two cover connecting rod mechanism and transmission devices of lifting frame 1, lifting wheel 2, left and right sides structure, and wherein connecting rod mechanism comprises lift arm 30, adjusts pipe 31, connecting arm 32 and movable arm 33; Lifting frame 1 is captiveed joint with vehicle body, and an end of lift arm 30 is articulated in the top of lifting frame 1, and the other end is taken turns 2 with lifting and captiveed joint; Connecting arm 32 1 ends are articulated in the bottom of lifting frame 1, and the other end is hinged with an end of adjusting pipe 31, and the other end and the lift arm 30 of adjusting pipe 31 are hinged; Movable arm 33 1 ends are articulated in the middle part of connecting arm 32, and the other end drives and connects the transmission device that is arranged on lifting frame 1 bottom; Described transmission device comprises left-handed ball screw assembly, 40, dextrorotation ball screw assembly, 41 and transmission connecting mechanism.Described transmission connecting mechanism is a connecting rod assembly 42, captives joint with dextrorotation leading screw 410 with left-handed leading screw 400 respectively in connecting rod assembly 42 two ends, and left-handed like this ball screw assembly, 40 and dextrorotation ball screw assembly, 41 join together by transmission connecting mechanism.When external force (manpower or electronic) rotational lead screw, an end of movable arm 33 is made left and right sides straight-line motion, and movable arm 33 drives lift arm 30 around the hinge-point rotation by adjusting pipe 31 and connecting arm 32, realizes lifting and falls function.

Consult Fig. 4 and Fig. 5, when an end of transmission device driving movable arm 33 is made axial linear movement, corner dynamic change because of movable arm 33, so can produce uncertain radial component, in order to guarantee that screw pair does not produce big radially bending, this example also is provided with stabilizing mechanism, and described stabilizing mechanism is separately positioned on left-handed ball screw assembly, 40 and the dextrorotation ball screw assembly, 41, comprises nut permanent seat 50, bearing roller 51 and limited roller 52.Only be the structure of example explanation stabilizing mechanism below with the stabilizing mechanism on the left-handed ball screw assembly, 40, nut permanent seat 50 is captiveed joint with feed screw nut 401, bearing roller 51 is arranged on the nut permanent seat 50 and with leading screw 400 and offsets, limited roller 52 is arranged on the nut permanent seat 50 and offsets with the outside bottom surface of the leading screw cover 402 of ball screw assembly, 40, guarantees the end in-line motion of movable arm 33.

Consult Fig. 3, in this device, lift arm 30 and connecting arm 32 can not move with the point of connection of lifting frame 1, only rotatable, and adjust pipe 31 as the connection pipe between these two pivot arms, have under the situation of error installing or make, length can be different, therefore, adjust pipe 31 and make the adjustable-length pipe, to adapt to different situations.Described adjustment pipe 31 comprises inner sleeve 310, outer tube 311 and adjustable bolt 312, and inner sleeve 310 is socketed in the outer tube 311, and adjustable bolt 312 is connected with the end thread of inner sleeve 310 with outer tube 311 simultaneously.By the screw thread fit length of adjustable bolt 312, can realize adjusting the length adjustment of pipe 31 like this with inner sleeve 310 and outer tube 311.

Consult Fig. 1, Fig. 2 and Fig. 6, this device is driven by manpower, when on the wheel of the lifting on the lift arm 30 2 application force being arranged, according to mechanical analysis as can be known, movable arm 33 just can lift lift arm 30 will for 32 1 very big power of connecting arm, therefore, for the light sense of the operation that improves this device, also be provided with spring assist mechanism 6.Described spring assist mechanism 6 comprises moving casing and inner spring 63 and the outer spring of being made up of inner sleeve 60 and outer tube 61 62, and inner spring 63 and outer spring 62 are socketed on the moving casing, and the block 600 of two ends and moving casing and block 610 offset; One end and the lifting frame 1 of moving casing are hinged, and the other end is hinged with adjustment pipe 31.Utilize spring assist like this, make this device be more suitable for manual operation, improved integrally-built reasonableness.

Consult Fig. 7, when mechanism runs to end position, as when continuing reinforcing, may damage device, therefore also be provided with the overload protection arrangement of clutch on dextrorotation ball screw assembly, 41, this device comprises first connector 70, second connector 71; Described first connector 70 is captiveed joint with the leading screw 410 of dextrorotation ball screw assembly,, and second connector 71 is provided with propulsive effort input media joint portion 710, and is connected with first connector 70 by spring steel ball mechanism 72.When on second connector 71, excessive torsion being arranged; when surpassing the coupling mechanism force of spring steel ball mechanism 72; produce relative rotation between first connector 70 and second connector 71, the torsion of first connector 70 can not be delivered on second connector 71, has played the effect of protection entire mechanism.

Consult Fig. 1 and Fig. 2, also be provided with electronic spare interface 8, described electronic spare interface 8 is connected with transmission device, can install motor additional like this, realizes automation mechanized operation.

Above-described specific embodiment only is preferred embodiment of the present invention, and the equivalent arrangements of being done according to the present patent application claim all should be technology of the present invention and contains such as.

Claims

1. lifting device for trailer top cover, it is characterized in that: two cover connecting rod mechanism and the transmission devices that comprise lifting frame (1), lifting wheel (2), left and right sides structure, wherein connecting rod mechanism comprises lift arm (30), adjusts pipe (31), connecting arm (32) and movable arm (33), lifting frame (1) is captiveed joint with vehicle body, one end of lift arm (30) is articulated in the top of lifting frame (1), captives joint with lifting wheel (2) in the other end; Connecting arm (32) one ends are articulated in the bottom of lifting frame (1), and the other end is hinged with an end of adjusting pipe (31), and the other end and the lift arm (30) of adjusting pipe (31) are hinged; Movable arm (33) one ends are articulated in the middle part of connecting arm (32), and the other end drives and connects the transmission device that is arranged on lifting frame (1) bottom; Described transmission device comprises left-handed ball screw assembly, (40), dextrorotation ball screw assembly, (41) and transmission connecting mechanism, transmission connecting mechanism is connecting rod assembly (42), captive joint with dextrorotation ball screw assembly, (41) with left-handed ball screw assembly, (40) respectively in connecting rod assembly (42) two ends, left-handed ball screw assembly, (40) and dextrorotation ball screw assembly, (41) are joined together by transmission connecting mechanism.

2. lifting device for trailer top cover according to claim 1, it is characterized in that: also be provided with stabilizing mechanism, described stabilizing mechanism comprises nut permanent seat (50), bearing roller (51) and limited roller (52), nut permanent seat (50) is captiveed joint with feed screw nut (401), bearing roller (51) is arranged on that nut permanent seat (50) is gone up and offsets with leading screw (400), and limited roller (52) is arranged on that nut permanent seat (50) is gone up and offsets with leading screw cover (402) outside bottom surface of ball screw assembly, (40).

3. lifting device for trailer top cover according to claim 1 and 2, it is characterized in that: also be provided with spring assist mechanism (6), described spring assist mechanism (6) comprises moving casing and the inside and outside spring of being made up of inner sleeve (60) and outer tube (61) (63,62), inside and outside spring (63,62) is socketed on the moving casing, and the block of two ends and moving casing (610) offsets; One end of moving casing and lifting frame (1) are hinged, and the other end is hinged with adjustment pipe (31).

4. lifting device for trailer top cover according to claim 3; it is characterized in that: also be provided with the overload protection arrangement of clutch that comprises first connector (70) and second connector (71); described first connector (70) is captiveed joint with the leading screw (410) of dextrorotation ball screw assembly,, and second connector (71) is provided with propulsive effort input media joint portion (710).

5. lifting device for trailer top cover according to claim 4 is characterized in that: also be provided with electronic spare interface (8), described electronic spare interface (8) is connected with driving device.