CN203504116U

CN203504116U - Movable telescopic arm device

Info

Publication number: CN203504116U
Application number: CN201320550705.1U
Authority: CN
Inventors: 廖承东
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-08-29
Filing date: 2013-08-29
Publication date: 2014-03-26
Anticipated expiration: 2023-08-29

Abstract

A movable telescopic arm device comprises an outer arm and an inner arm, the outer arm is of a hollow structure, the inner arm is embedded and connected into the outer arm in a sliding manner, a support plate is arranged inside the outer arm, a flat cable is arranged on the support plate, a support plate groove is arranged inside the inner arm, and when the inner arm slides into the outer arm, the support plate guides the flat cable to be inserted into the support plate groove of the inner arm. According to the movable telescopic arm device in the utility model, the flat cable is supported and guided through the support plate, and the flat cable is separated into three segments for fixing and free slide design, thereby ensuring the inner arm and the outer arm to slide smoothly relative to each other without being obstructed, and signal transmission of the flat cable is stable and fast. The support plate slides into the inner arm along the support plate groove in the inner arm, and guides the flat cable to move following the inner arm, thereby preventing the inner arm and the outer arm from squeezing the flat cable in friction during quick movement and from making the flat cable easy to break and preventing the service life of the product from being affected.

Description

Movable telescopic arm assembly

[technical field]

The utility model relates to the telescopic movable arm of recording instrument, relate in particular to there is rotating shaft, the lever arm device of stretching structure, inner conductors.

[background technology]

One class engineering goods, electronic instrument have movable telescopic arm, and attachment lens, probe, operating head complete the operation in certain angle and scope, generally can be rotated, the action such as stretching, lifting.Such telescopic arm needs mainly to consider the completing of mechanical action, circuit cable design in design.Mechanical action relies on the textural associations such as rotating shaft, flexible member and chute and completes default effect, and also can affect product overall quality and operation stability in circuit cable design.

Telescopic arm generally adopts drawing and pulling type structure, i.e. shell hollow, and built-in inner arm, inner arm is nested in shell, stretch/shrink in shell, and the winding displacement of telescopic arm is placed in shell along chute, meets the different active states of telescopic arm.In general winding displacement two ends are respectively in telescopic arm two ends, the object of transmitting along telescopic arm with settling signal.Conventional winding displacement just lengthens winding displacement, and its two ends are fixed, and mid portion freely distributes.Such design can cause some travel position at telescopic arm to be subject to winding displacement disturbing, and activity has some setbacks, or winding displacement blocked by telescopic arm motion, affects signal transmission; Winding displacement produces frequent doubling, causes winding displacement strain easily aging, and dropout problem occurs.

[summary of the invention]

The utility model has proposed a kind of telescopic arm stretching motion that do not affect for above problem, and winding displacement is furnished with rule and the difficult movable telescopic arm assembly that clip occurs.

The movable telescopic arm assembly that relates to described in the utility model, comprise outer arm and inner arm, this outer arm is hollow structure, inner arm is with the nested outer arm inside that is connected to of slidingtype, in this outer arm inside, be also provided with a supporting plate, on supporting plate, lay winding displacement, in inner arm, be provided with a supporting plate groove, when inner arm slides in outer arm, supporting plate guiding winding displacement inserts in the supporting plate groove of inner arm.

This outer arm and inner arm are microscler, this outer arm has outer arm headend and outer arm link, inner arm has inner arm tail end and inner arm link, outer arm link and the activity of inner arm link are engaged togather, it is inner that one end of winding displacement is connected to outer arm headend, and other one end of winding displacement is connected to inner arm tail end inside; Place near the steps supporting plate is arranged on the junction of winding displacement and outer arm, and winding displacement winding is on supporting plate, and prolongation is connected to inner arm tail end.

This supporting plate is " L " type, a horizontal stripe position and vertical bar position, consists of, and comprises bottom surface and end face, and this supporting plate is connected with outer arm headend with the vertical bar position of " L " type.

Winding displacement comprises two sections of canned paragraphs and the free segment between two sections of canned paragraphs, on winding displacement, from outer arm headend to supporting plate horizontal stripe position, be fixed into the first canned paragraph, on winding displacement, from inner arm tail end to inner arm link, be fixed into the second canned paragraph, between the first canned paragraph and the second canned paragraph, by free segment, connect.

The first canned paragraph of winding displacement is fixed on supporting plate top surface, and the second canned paragraph of winding displacement is fixed on below supporting plate groove, and the free segment of winding displacement is walked around supporting plate horizontal stripe position and is turned to supporting plate bottom surface, extends to the second canned paragraph.

At inner arm link, place is provided with a pair of damping wheel, and damping wheel is along the inner slide guide inner arm of outer arm.

Between two damping wheels, corresponding winding displacement position is provided with an elastic pressuring plate, is pressed on winding displacement.

The utility model is by supporting plate, and support guiding winding displacement, is divided into three sections by winding displacement and is fixed respectively and is free to slide design, can guarantee that inner arm and outer arm relative sliding are smooth and easy and interference-free, and winding displacement stable signal transmission at a high speed.Supporting plate slides in inner arm along interior arm blaster groove, and guiding winding displacement is followed inner arm and moved, and also avoids in interior outer arm fast moving friction and Extrusion to winding displacement, to make winding displacement easily rupture simultaneously and affects product useful life.

[accompanying drawing explanation]

Fig. 1 is the utility model structural representation;

Fig. 2 is the utility model structural representation;

Wherein: 100, movable telescopic arm assembly; 10, outer arm; 20, inner arm; 21, supporting plate groove; 30, supporting plate; 40, winding displacement; 41, the first canned paragraph; 42, free segment; 43, the second canned paragraph; 50, damping wheel; 60, elastic pressuring plate.

[embodiment]

Below in conjunction with drawings and Examples, the related movable telescopic arm assembly of the utility model is elaborated.

Please refer to accompanying drawing 1, wherein show movable telescopic arm assembly 100, the main body of this movable telescopic arm comprises outer arm 10 and inner arm 20, and this outer arm 10 is hollow structure, and inner arm 20 is nested in outer arm, and slidingtype extends outside outer arm or is contracted in outer arm.The effect that can realize is when opening completely, the length of inner arm 20 is connected to the length that extends outer arm 10, and when folding is retracted, inner arm 20 main bodys is enclosed within outer arm 10 completely, the whole length that only embodies outer arm 10.

This outer arm 10 and inner arm 20 are microscler, this outer arm 10 has outer arm headend and outer arm link, inner arm 20 has inner arm tail end and inner arm link, outer arm link and the activity of inner arm link are engaged togather, and are actually outer arm link and are inserted in outer arm link, and be provided with a pair of damping wheel 50 at inner arm link place, damping wheel 50 drives inner arm to slide along outer arm is inner, when this inner arm skids off maximum position, can be stuck in outer arm link, be unlikely to slippage out.

In outer arm and inner arm, need to walk winding displacement 40, winding displacement 40 is the carriers that run through telescopic arm conducted signal, winding displacement 40 need to extend to inner arm tail end from outer arm headend, and to inner arm outer arm, relative motion keeps away position for needs, can in the slip of inner arm, not be stuck, while arranging winding displacement 40, also to consider not overflexing winding displacement 40 simultaneously, avoid frequent bending and strain.So it is inner that one end of winding displacement 40 is connected to outer arm headend, and other one end of winding displacement 40 is connected to inner arm tail end inside.

Conventional way, just meets telescopic arm by length, and the winding displacement 40 of flexible maximum length installs in outer arm and inner arm, freely places, and this mode may produce the problem of winding displacement 40 Position disturbance inner arm outer arm stretching motions.

And the utility model, in outer arm, established a supporting plate 30, this supporting plate 30 is arranged on the junction of winding displacement 40 and outer arm 10, play standing part winding displacement 40, hold up winding displacement 40, and when inner arm slides, guiding winding displacement 40 is followed inner arm movement tendency and moves, make winding displacement 40 can not disturb mechanical component movement, can be by mechanical part clip yet, or damage.

Position and size to should supporting plate have a supporting plate groove 21 in inner arm 20, and when the complete purse up of inner arm 20 is in outer arm 10 time, supporting plate 30 is just inserted in supporting plate groove 21.This supporting plate is " L " type, a horizontal stripe position and vertical bar position, consists of, and comprises bottom surface and end face, and this supporting plate is connected with outer arm headend with the vertical bar position of " L " type.Winding displacement connects up along supporting plate, can whole section of winding displacement be divided into three sections according to the wiring situation of winding displacement, winding displacement is fixed into the first canned paragraph along supporting plate, winding displacement is the second canned paragraph along the fixing part of supporting plate groove bottom, and is free segment between the first canned paragraph and the second canned paragraph.

The first canned paragraph 41 from outer arm headend inside the end face along end face-horizontal stripe position at supporting plate 30 vertical bar positions fix, from the end face at horizontal stripe position, be turned to bottom surface; The second canned paragraph 43 is all fixed from inner arm tail end to inner arm link, is fixed on supporting plate groove bottom, and free segment is freely engaged between two sections.

Between two damping wheels 50, corresponding winding displacement position is provided with an elastic pressuring plate 60, is pressed on winding displacement.When this elastic pressuring plate 60 can press winding displacement to be allowed to condition at supporting plate insertion, can be squeezed into conveniently supporting plate groove, but keep away position along side, supporting plate groove vertical bar position clearance spaces, be made a concession.And when inner arm is protruding, winding displacement is stretched and stretchs out along inner arm traction reposefully in an orderly manner.

The above, it is only the utility model preferred embodiment, not the utility model is done to any pro forma restriction, although the utility model discloses as above with preferred embodiment, yet not in order to limit the utility model, any those skilled in the art, do not departing within the scope of technical solutions of the utility model, when utilizing the technology contents of above-mentioned announcement to make a little change or being modified to the equivalent embodiment of equivalent variations, in every case be not depart from technical solutions of the utility model content, according to the utility model technology, refer to any simple modification that above embodiment is done, equivalent variations and modification, all belong in the scope of technical solutions of the utility model.

Claims

1. a movable telescopic arm assembly, comprise outer arm and inner arm, it is characterized in that, this outer arm is hollow structure, and inner arm, with the nested outer arm inside that is connected to of slidingtype, is also provided with a supporting plate in this outer arm inside, on supporting plate, lay winding displacement, in inner arm, be provided with a supporting plate groove, when inner arm slides in outer arm, supporting plate guiding winding displacement inserts in the supporting plate groove of inner arm.

2. movable telescopic arm assembly according to claim 1, it is characterized in that, described this outer arm and inner arm are microscler, this outer arm has outer arm headend and outer arm link, inner arm has inner arm tail end and inner arm link, outer arm link and the activity of inner arm link are engaged togather, and it is inner that one end of winding displacement is connected to outer arm headend, and other one end of winding displacement is connected to inner arm tail end inside; This supporting plate is arranged on the junction of winding displacement and outer arm, and winding displacement winding is on supporting plate, and prolongation is connected to inner arm tail end.

3. movable telescopic arm assembly according to claim 2, is characterized in that, this supporting plate is " L " type, a horizontal stripe position and vertical bar position, consists of, and comprises bottom surface and end face, and this supporting plate is connected with outer arm headend with the vertical bar position of " L " type.

4. movable telescopic arm assembly according to claim 3, it is characterized in that, winding displacement comprises two sections of canned paragraphs and the free segment between two sections of canned paragraphs, on winding displacement, from outer arm headend to supporting plate horizontal stripe position, be fixed into the first canned paragraph, on winding displacement, from inner arm tail end to inner arm link, be fixed into the second canned paragraph, between the first canned paragraph and the second canned paragraph, by free segment, connect.

5. movable telescopic arm assembly according to claim 4, it is characterized in that, the first canned paragraph of winding displacement is fixed on supporting plate top surface, and the second canned paragraph of winding displacement is fixed on below supporting plate groove, the free segment of winding displacement is walked around supporting plate horizontal stripe position and is turned to supporting plate bottom surface, extends to the second canned paragraph.

6. movable telescopic arm assembly according to claim 1, is characterized in that, at inner arm link, place is provided with a pair of damping wheel, and damping wheel is along the inner slide guide inner arm of outer arm.

7. movable telescopic arm assembly according to claim 6, is characterized in that, between two damping wheels, corresponding winding displacement position is provided with an elastic pressuring plate, is pressed on winding displacement.