CN203248947U

CN203248947U - Scissor type expansion bracket with small superposition size

Info

Publication number: CN203248947U
Application number: CN 201320290287
Authority: CN
Inventors: 郜永华
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-05-25
Filing date: 2013-05-25
Publication date: 2013-10-23
Anticipated expiration: 2023-05-25

Abstract

The utility model relates to a scissor type expansion bracket with small superposition size. Supporting planes (7, 9) of the scissor type expansion bracket are arranged at positions close to two ends of expansion directions of bracket bodies, so that the bracket bodies and revolute pair linking rods are superposed in length or superposed partially in the expansion directions and the overall size is reduced; the bracket bodies, with right-angled cross sections, provide a rod assembly support surface nearby an outer side surface; a scissor rod assembly in an enclosed contraction state is accommodated in another side surfaces (8) of the bracket bodies. With adoption of the scheme, a support for the scissor rod assembly can be erected simply and conveniently; the supporting planes can move outwards relatively on the bracket bodies; the side outline of the scissor rod assembly in the contraction state can be achieved; due to the large side surfaces of the bracket bodies, the strength of the bracket bodies is increased, the sealing property of equipment in the contraction state is improved, and the appearance of the equipment in the working state is improved.

Description

Little superimposed size scissor type telescopic frame

Technical field

The utility model belongs to member structure, relates generally to a kind of architecture advances of scissor type telescopic device.

Background technique

Known scissor type telescopic frame is widely used in the support occasion of load position conversion, because its easily mobility, greatest differences between flexible ability, the shared spatial extrema flexibly are subjected to user's favor deeply.But in some use occasion higher to mobility, often the overall dimension that reduces equipment there is higher requirement.

Summary of the invention

The purpose of this utility model is to propose a kind of little superimposed size scissor type telescopic frame, and the technical problem that solve is the technological scheme that proposes little superimposed size scissor type telescopic frame.

Particular content of the present utility model is that little superimposed size scissor type telescopic frame comprises, two mutual parallel long strip support bodys; Be respectively equipped with in the plane between two support body long sides, the scissors rod group that mutually by axis vertical bar length direction revolute pair two stocks is linked each other at long mid point such as two bars such as stock such as grade, the bar group can be one group, each other in this side head and the tail link two groups or successively head and the tail continue many groups that link, two or many groups between, still the revolute pair with same axial direction links corresponding rod end each other; Two rod ends at each profile bar group two ends with same axial direction revolute pair with the such roller of revolute pair, link with two support body medial support faces respectively, roller shaft and turns auxiliary shaft parallel with the support body length direction on the plane altogether.Wherein, described support body medial support face is respectively adjacent to the relevant position that support body supports the direction outer surface.

Like this, the support body that is connected by the bar group is the basic structure that forms the scissors fork elevating machine, bar group supporting surface is placed relevant position near the support body outer surface, the support body supporting plane is taken up space with interior part and bar group part even all overlapping must occur, compare with the corresponding mechanism that supporting surface is located at the inner surface of support body, certainly will reduce the overall dimension of equipment in this direction.And when all overlapping or near whole when overlapping, the expansion bracket of contraction state can be contained by the support body at two ends or during by most of the containing, also because the framework outer wall at sound two ends has blocked the rod member of contraction state, closed state and equipment appearance when equipment is treated work have been improved.As above invention scheme has been dwindled the overall dimension of equipment in this direction to the restriction in the flexible direction supporting plane position of rod member.Thereby realized the model utility purpose, solved the technical problem that model utility proposes.

Support body described in the utility model be both sides orthogonal and continue link, the cross section is the bar partly with the diagonal side of dividing equally ring or rectangular ring.The cross section is the inner side plane that the bar at right angle has next-door neighbour's outer wall, can be used as the supporting plane of scissors rod spare; And the rod member within supporting plane partly remains the necessary part that rod member intensity consists of.This necessary part will can not increase the overall dimension of this direction of equipment in the size of vertical support face direction.

Support body described in the utility model is provided with the sidewall of vertical rotation secondary axis, and this sidewall all blocks contraction state scissors rod group.To utilize support body to contain contraction state scissors rod group with material.

The utility model is placed in position near the support body outer wall with the supporting plane of scissor type telescopic frame support body, makes support body and revolute pair connecting rod produce part or most of overlapping in the length of flexible direction, has dwindled the overall dimensions of equipment; The support body that the cross section is rectangular provides the bar group supporting surface near outer surface; The scissors rod group of sealing contraction state has been contained in the another side of support body.Scheme is set up the support of scissors rod spare very easily, with supporting surface externally moving mutually on support body, and has achieved the side profile of the scissors rod group of contraction state.Overlap in the length of the flexible direction of scissor type telescopic frame between support body and the rod member and dwindled the shared length space of scissor type telescopic frame, especially effectively reduced the corresponding size of equipment closed state; The support body on larger side surface has strengthened the encapsulation of equipment contraction state, has also improved the outward appearance of equipment in this working state.

Description of drawings

Fig. 1 is the structural representation after the little superimposed size scissors type elevating frame contraction state of closed state is removed quiet side;

Fig. 2 is common scissors type elevating frame contraction state outward appearance;

Fig. 3 is that little superimposed size scissors type elevating frame bearing is located at sidewall connecting structure schematic representation;

Fig. 4 is that the part that Fig. 3 A-A analyses and observe only represents that is cut a fork structural representation.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

The implication of drawing the numbering representative among the figure is; 4 quiet 5 bars of 1 moving frame, 2 revolute pairs, 3 bearings, 6 rollers, 7 supporting surfaces, 8 outer side surfaces

The first embodiment is the little superimposed size scissors type elevating frame that is used in the lifting occasion, sees Fig. 1.

155.5 * 100 * 21 centimetres of this routine overall dimensions can have the modification between the varying number revolute pair connecting rod group on this basis.

This example is that angle bar cross section rod member, adjacent stems adjacent side are coplanar each other in twos by four cross sections, and difference two bars that are positioned at two parallel co-planar respectively are one group, respectively as this routine moving frame 1 and quiet 4, this moment each angle bar opening direction all towards the inboard of sound frame.Be positioned at separately at the sound frame on the inner side surface of two coplanar bar sides, establish respectively the bearing 3 that is parallel to the revolute pair 2 of this inner side surface and vertical angle iron length direction with axis, straight-bar 5 one ends that revolute pair is consistent with the length unit-frame link.The another end of straight-bar links each other with the revolute pair of same axial direction, the mid point of two straight-bars is also through same axial direction revolute pair, respectively with another with it the mid point of isometric straight-bar link, join two straight-bars an end link with revolute pair and the roller 6 of same axial direction respectively, roller radius and bearing revolute pair axis to the distance of place inner side surface separately equates, and roller links with the other end section rolling of inner side surface separately respectively; The another end that the roller straight-bar is housed links each other with same axial direction revolute pair.Form and have two groups of scissors rod group scissors type elevating framves.Between two groups of scissors rod groups, can also access the scissors rod group that quantity differs, all connect corresponding rod end with the axis revolute pair identical with each revolute pair axis direction between the adjacent stems group, form the scissors type elevating frame with many group scissors rod groups.Namely form the basic structure of this routine scissors fork elevating bar group, so far, finished the narration of this routine main structure.

During work, as long as the relative position between any two bars of change can via the distance between revolute pair and the roller change sound support body, be realized the transmission agency that the expansion bracket position changes.

The sectional shape of moving frame and quiet angle bar own or the half right angle Fang Huan that divides equally with diagonal, provide supporting surface to be positioned at moving frame and quiet position that very approaches at support direction respective outer face, make this size in the flexible direction of revolute pair connecting rod of sound frame, impact on the outfit of equipment size becomes very little, just increased the thickness of two sides of support body, support body is overlapping at the most of corresponding size with link rod spare of all the other sizes of this direction.

When this example is two groups of scissors rods, mutually with the necessary gap sum of revolute pair connecting rod radial dimension and adjacent rod member closed state and sound frame opposite side hem width degree with several about the same, shrink under the closed state when rod member is in, two another sides of sound can dock each other and close up or almost close up.At this moment revolute pair connects telescoping rod and can be blocked sealing by the side that support body is positioned at the side, can only see up and down the mutually sound support body of docking from the side of equipment.Such closed state has been saved taking up room of equipment, under same initial position condition, reduce moving frame outside flexible direction, be the height of superimposed contraction state, can satisfy the selection that this kind demand occasion is arranged.This situation can from relatively the showing of Fig. 2 and Fig. 1, differ nearly 200 millimeters in the overall height of shrinking superimposed position.

The second embodiment is the expansion bracket for sliding door, its corresponding construction is identical with upper example, because this example is shunk the size less of closed state, stay the slightly larger width that passes through in the time of can using state for the superimposed contraction of sliding door, when having at the scene this to need especially, this equipment just can satisfy its demand.Owing to reduced the overall dimension of equipment, also corresponding the saving as blocking the needed materials of superimposed contraction state equipment.

The 3rd embodiment is that revolute pair connecting rod bearing is located on the madial wall on moving frame and quiet other limit, shown in Fig. 3 and 4.

Other structure of this example and use condition all are consistent with upper two examples.The bearing that just is supported in supporting surface as rod member has been taked the fixing mode in side.The sidewall of support body is positioned at a side of the flexible direction of rod member, and this is a kind of modification arrangement of supporting structure.This routine structure is shown in the fracture partial view of Fig. 4.

The cross section that the 4th embodiment consists of sound support body rod member is the U word annular at right angle, has increased a side, is enhanced as the support body rod member intensity of supporting member.The supporting surface of scissor type telescopic rod member can obtain in both sides the support of side intensity at this moment.Other situation of the structure that this is routine and work, all above example is consistent.

Claims

1. little superimposed size scissor type telescopic frame comprises two mutual parallel long strip support bodys; Be respectively equipped with in the plane between two support body long sides, the scissors rod group that mutually by axis vertical bar length direction revolute pair two stocks is linked each other at long mid point such as two bars such as stock such as grade, the bar group can be one group, each other in this side head and the tail link two groups or successively head and the tail continue many groups that link, two or many groups between, still the revolute pair with same axial direction links corresponding rod end each other; Two rod ends at each profile bar group two ends with same axial direction revolute pair with the such roller of revolute pair, link with two support body medial support faces respectively, roller shaft and turns auxiliary shaft parallel with the support body length direction on the plane altogether; It is characterized in that: described support body medial support face (7,9) is respectively adjacent to the relevant position that support body supports the direction outer surface.

2. such as little superimposed size scissor type telescopic frame as described in the claim 1, it is characterized in that: described support body both sides orthogonal and continue link, the cross section is for dividing half bar of right angle side's ring or rectangular ring equally with diagonal.

3. such as little superimposed size scissor type telescopic frame as described in the claim 1, it is characterized in that: described support body is provided with the sidewall (8) of vertical rotation secondary axis, and this sidewall all blocks contraction state scissors rod group.