CN201425147Y

CN201425147Y - Folding bracket

Info

Publication number: CN201425147Y
Application number: CN2009201187823U
Authority: CN
Inventors: 傅柏年
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-29
Filing date: 2009-04-29
Publication date: 2010-03-17
Anticipated expiration: 2019-04-29

Abstract

The utility model discloses a folding bracket, which can be taken as supporting pieces of various lamps or displays to be widely applied in the fields of medical treatment, cosmetology, electronics industry, handicraft, stamp collection or jewellery collection and other fields, and structurally comprises a lower arm formed through the hinge joint of pins, an upper arm hinged with the lower arm, aconnector connected to the upper arm, a conducting wire connected with a power supply and the like, wherein a connecting wire groove is formed at the hinged part of the lower arm and the upper arm, sothat the connecting wire can be completely concealed in the lower arm and the upper arm through the connecting wire groove in a penetrating manner, and the improved structure achieves the full-closedconceal design and can prevent foreign objects from entering the inside of the bracket, therefore, the higher safety performance of electric appliances is provided, the potential safety hazards are greatly reduced in the actual use, and meanwhile, the connector is rotationally assembled on the upper arm, so that the rotating range is expanded, and the application space is wider. The bracket has the advantages of reasonable structure, safe use and flexible operation.

Description

Folding rack

Technical field

The utility model relates to a kind of folding rack that is used to support products such as light fixture or display screen.

Background technique

The supporting element that folding rack can be used as various light fixtures or display screen uses, be widely used in medical treatment, beauty treatment, electronics industry, handicraft, fields such as philatelic or jewelry collection, the folding rack that uses is " display/panel bracket " structural similarity of 200820116058.2 mostly with disclosed China Patent No. at present, by pin, support arm, connecting base, connect first-class formation, after being installed on the connecting head, light fixture or display screen can freely rotate, this support arm is two parallel rod members normally, its end is hinged on simultaneously on the connecting base and constitutes the force structure of parallelogram, in the rotation process, clearance distance between two parallel support arms can change, therefore the operator is when the operation support arm rotates, in case finger is stretched between two support arms because of carelessness, will cause finger to crush.Also having a kind of supporting structure is " long-armed Table lamp stand " structural similarity of 200520004401.0 with disclosed China Patent No., be by pin, underarm, upper arm be connected first-class formation, two parallel support arm structures in the said structure have been replaced with single mutually hinged underarm with upper arm, so there is not the possibility of tong in rotation process, yet still there are some defectives in actual use in this structure, though for example connecting the lead of power supply is located in underarm and the upper arm, but outside when lead passes through the hinged place of underarm and upper arm, will being exposed to, therefore this lead is not that totally enclosed type is hidden design, has potential safety hazard during use.Simultaneously between connecting head and the upper arm for being articulated and connected, so be installed in light fixture on the connecting head only can be upper and lower or turn left and right, slewing area is less.

Summary of the invention

Technical problem to be solved in the utility model is to overcome the defective of prior art and a kind of reliable in structure, safe in utilization, the totally-enclosed hiding design of lead, folding rack that the connecting head slewing area is bigger is provided.

Technical problem of the present utility model is achieved through the following technical solutions:

A kind of folding rack, is connected connecting head on the upper arm, and is connected the lead of power supply at the underarm that it comprises pin, be hinged with pin, the upper arm that is hinged with underarm; The fine setting that the hinged place of the hinged place of described pin and underarm, underarm and upper arm the is equipped with angular turn locking assembly of holding concurrently is characterized in that:

The hinged place of a, described underarm and upper arm is equipped with metallic channel, and described lead is located in underarm and the upper arm through this metallic channel is hidden;

B, described connecting head are rotatably connected on the upper arm, and are provided with the limit element that limits rotation angle in the joint, and this limit element is convex shoulder or the boss that is arranged on the connecting head, boss or the convex shoulder of relative set on upper arm.

The described connecting head that is connected on the upper arm is realized being rotationally connected by hollow screw, and this hollow screw is built in upper arm ends by upper arm omoplate stop bit, and overhanging end is connected with connecting head; Or between connecting head and upper arm, be provided with and rotate equipped omoplate and annular groove.

The rotation angle of the relative upper arm of described connecting head is defined as 340 °.

Described underarm and upper arm constitute " J " type bar; Described underarm is made of following left arm that is fastened mutually and following right arm, and this time left arm is provided with the aperture that penetrates lead; Described upper arm is made of last left arm that is fastened mutually and last right arm.

Be provided with the sheath that prevents the lead wearing and tearing in the described aperture.

Be provided with lower spring in the described underarm, this lower spring one end is connected on the connecting pin of underarm, and the other end links on connecting sheet, and this connecting sheet is connected in the pin again simultaneously.

Be provided with upper spring in the described underarm, this upper spring one end is connected on the connecting pin of underarm, and the other end links on connecting sheet, and this connecting sheet is simultaneously again in hook is connected upper arm.

Described hook is " S " type, and " S " type of being somebody's turn to do is linked up with an end and linked in the attachment hole of connecting sheet, and the other end is connected on the connecting pin of upper arm.

The fine setting at described pin and the underarm place of being hinged hold concurrently locking assembly comprise by following attachment screw pass down successively left arm, down right arm, and the directed pin and friction plate that is arranged on down between left arm and the following right arm after, be threaded in down and lock on the turn-knob; The fine setting at described underarm and the upper arm place of being hinged hold concurrently locking assembly comprise by last attachment screw pass down successively left arm, down right arm, and the directed upper arm and friction plate that is arranged on down between left arm and the following right arm after, be threaded in and lock on the turn-knob.

It is to be provided with equipped mutually positioning block and positioning hole between pin and friction plate that described pin is provided with structure with the orientation of friction plate; It is to be provided with equipped mutually positioning block and positioning hole between upper arm and friction plate that described upper arm is provided with structure with the orientation of friction plate.

Compared with prior art, the utility model is to be equipped with metallic channel in the hinged place of underarm and upper arm, therefore the lead that connects power supply gets final product hidden being located in underarm and the upper arm fully through this metallic channel, structure after the improvement has realized lead totally-enclosed hiding design truly, reduce potential safety hazard in the using process of historical facts or anecdotes border greatly, connecting head rotates to be fitted in and makes slewing area increase on the upper arm simultaneously, use more extensively, this structure also has the advantage of reliable in structure, safe in utilization, flexible operation.

Description of drawings

Fig. 1 is a decomposition texture schematic representation of the present utility model.

Fig. 2 is a plan view of the present utility model.

Fig. 3 is the left view of Fig. 2.

Fig. 4 is the plan view of Fig. 2.

Embodiment

To elaborate again to the utility model embodiment by above-mentioned accompanying drawing below.

As Fig. 1～shown in Figure 4, the 1-pin, the 2-underarm, the 3-upper arm, the 4-connecting head, attachment screw under the 5-, the 6-friction plate, the 7-positioning hole, the 8-positioning block, the 9-attachment post, the 10-articulated joint, the 11-pad, 12-is the locking turn-knob down, the 13-screw, the 14-port lid, right arm under the 15-, the last locking of 16-turn-knob, the 17-metallic channel, the last right arm of 18-, the 19-hollow screw, the 20-packing ring, the 21-turn-knob, the 22-convex shoulder, the 23-attachment screw, the 24-boss, the 25-omoplate, the last left arm of 26-, the 27-hook, the last attachment screw of 28-, left arm under the 29-, the 30-aperture, the 31-sheath, the 32-connecting sheet, the 33-upper spring, the 34-lower spring, the 35-attachment hole.

A kind of folding rack, can be used as lamp bracket or display/panel bracket uses, present embodiment mainly specifically describes with the folding rack as lamp for magnifying glass, and the underarm 2 that its structure is hinged by pin 1, with pin, the upper arm 3 that is hinged with underarm, the connecting head 4 that is rotatably connected on the upper arm constitute with the lead (not shown) that is connected power supply.

Described pin 1 is made up of the attachment post 9 of lower end and the cylindrical articulated joint 10 of upper end, and attachment post is pegged graft and is fixed on the base (not shown).Described underarm 2 is connected and fixed through screw 13 by the following left arm 29 of mutual fastening and following right arm 15 and is integral, and is provided with the port lid 14 that is used to cover screw hole at the screw hole place, reaches the purpose of beautiful shape.Be provided with the aperture 30 that wears for lead on the left arm 29 down, be provided with the trunking 31 that prevents lead wearing and tearing electric leakage between lead and the aperture.The obvolvent simultaneously of the lower end of following left arm 29 and following right arm 15 is outside the articulated joint 10 of pin 1 upper end, and orientation is provided with friction plate 6 between articulated joint both sides and following left arm and following right arm, and following attachment screw 5 passes down the articulated joint 10 of left arm 29, two friction plates 6, pin successively, right arm 15 and pad 11 rear threads are connected on the following locking turn-knob 12 of yi word pattern down.It is to be provided with positioning hole 7 on friction plate that orientation between described friction plate 6 and the pin articulated joint 10 is provided with structure, and this positioning hole is fitted on the positioning block 8 of articulated joint both sides.Therefore when manipulation underarm 2 when pin 1 rotates, friction plate 6 can not followed underarm and be rotated together and play rubbing action.The big I of this frictional force reaches by screwing or unscrew down locking turn-knob 12, so time attachment screw 5, lock fine setting that turn-knob 12 and friction plate 6 promptly constituted this hinged place angular turn locking assembly of holding concurrently down.The rotation angle of underarm 2 relative pins about 110 °, realizes by at the underarm end guide groove being set that roughly after the attachment post of pin passed this guide groove, it promptly was 110 ° of slewing areas of the relative pin 1 of underarm that attachment post moves along the helical pitch of guide groove.

Hinged place near pin 1 and underarm in the described underarm 2 is provided with lower spring 34, this lower spring upper end is connected down on the connecting pin (not shown) of left arm 29 internal surfaces, the lower end links in the attachment hole 35 of stainless steel connecting sheet 32, connecting sheet is installed in the underarm, and the while is connected on the connecting pin (not shown) of pin 1 through the attachment hole of the other end again.Lower spring 34 is mainly used in the moment of torsion of balance pin 1 and underarm 2 hinged places, and lock down turn-knob 12 tighten realize under the frictional force booster action of generation underarm can be easily, the location of arbitrary position in 110 ° of slewing areas reliably.

Described left arm 29 down and the obvolvent simultaneously of following right arm 15 upper ends are outside the cylindrical articulated joint of upper arm 3 lower ends, upper arm is to be connected and fixed through screw 13 by the last left arm 26 of mutual fastening and last right arm 18 to be integral, also be provided with the port lid 14 that is used to cover screw hole at the screw hole place, reach the purpose of beautiful shape.Formed herein underarm 2 is identical with the hinging structure of underarm 2 with pin 1 with the hinging structure of upper arm 3, last attachment screw 28 passes down left arm 29, two friction plates 6 successively, goes up left arm 26, goes up right arm 18, right arm 15 and pad 11 rear threads are connected going up on the locking turn-knob 16 of yi word pattern down, also can reach the hold concurrently purpose of locking of rotation angle fine setting in the using process of historical facts or anecdotes border.The rotation angle of the upper arm 3 relative underarms 2 that this place is hinged is generally about 180 °.

Hinged place near upper and lower arm in the described underarm 2 is provided with upper spring 33, this upper spring lower end is connected down on the connecting pin of left arm 29 internal surfaces, the upper end links in the attachment hole 35 of stainless steel connecting sheet 32, connecting sheet is installed in the upper arm 3, link the hook 27 that is " S " type in the attachment hole of its other end, this hook is connected on the connecting pin of left arm 26 internal surfaces simultaneously.Upper spring 33 is mainly used in the moment of torsion of balance underarm 2 and upper arm 3 hinged places, and tighten at last locking turn-knob 16 realize under the frictional force booster action of generation upper arm can be easily, reliable in 180 ° of slewing areas the location of arbitrary position.The described underarm that is hinged 2 upper ends and upper arm 3 lower ends are equipped with the metallic channel 17 that can supply lead to penetrate.

Described upper arm 3 upper ends are provided with omoplate 25, described connecting head 4 is provided with the hollow screw 19 that is threaded, this hollow screw is built in the upper arm 3 by omoplate 25 stop bits, therefore connecting head 4 can rotate relative to upper arm through this hollow screw, is provided with the wave washer 20 that is used to provide pretension elastic force between hollow screw 19 and the connecting head 4; Also can directly be provided with the annular groove (not shown) on connecting head 4, last

left arm

26 and 18 obvolvents simultaneously of last right arm are fitted in this annular groove omoplate 25, thereby realize being rotationally connected on connecting head.Also be provided with boss 24 at upper arm 3 near the omoplate place, the convex shoulder 22 on this boss and the connecting head 4 constitutes the limit element that predetermined angle rotates, and its objective is to prevent that the lead that penetrates in the connecting head 4 from unrestrictedly being reversed and breaking, and this rotation angle is roughly about 340 °.Be connected the lamp holder (not shown) through turn-knob 21 with attachment screw 23 on the described connecting head 4.

Aperture 30 under the lead warp of described ABAP Adapter on the left arm 29 enters in the underarm 2, and enter in the upper arm after being upward through the metallic channel 17 of underarm upper end and upper arm 3 lower ends, at last the hollow screw 19 from the connecting head 4 penetrate connect lamp for magnifying glass lamp holder to realize the power supply purpose, whole threading process lead is in the sealing hidden state fully in support, so the potential safety hazard of greatly reducing.

The utility model is compared the folding rack of present use, has reliable in structure, uses safety, flexible operation Advantage, its whole metal that adopts is made, and makes product have good rigidity, also greatly increases the service life. Because lead adopts closed hiding design, can prevent effectively that foreign matter from entering internal stent, therefore have very high The security appliance performance. Simultaneously, there is not the potential safety hazard of tong during operation, has higher safety operation yet Energy. The rotational structure of connector not only increases slewing area, also so that the application scenario is more extensive.

Claims

1, a kind of folding rack, is connected connecting head (4) on the upper arm, and is connected the lead of power supply at the underarm (2) that it comprises pin (1), be hinged with pin, the upper arm (3) that is hinged with underarm; The fine setting that the hinged place of the hinged place of described pin (1) and underarm (2), underarm (2) and upper arm (3) the is equipped with angular turn locking assembly of holding concurrently is characterized in that:

The hinged place of a, described underarm (2) and upper arm (3) is equipped with metallic channel (17), and described lead is located in underarm (2) and the upper arm (3) through this metallic channel is hidden;

B, described connecting head (4) are rotatably connected on the upper arm (3), and be provided with the limit element that limits rotation angle in the joint, this limit element is for being arranged on convex shoulder (22) or the boss on the connecting head (4), boss (24) or the convex shoulder of relative set on upper arm (3).

2, folding rack according to claim 1, it is characterized in that the described connecting head (4) that is connected on the upper arm (3) is rotationally connected by hollow screw (19) realization, this hollow screw is built in upper arm (3) end by upper arm omoplate (25) stop bit, and overhanging end is connected with connecting head (4); Or between connecting head (4) and upper arm (3), be provided with and rotate equipped omoplate (25) and annular groove.

3, folding rack according to claim 1 is characterized in that the rotation angle of the relative upper arm (3) of described connecting head (4) is defined as 340 °.

4, folding rack according to claim 1 is characterized in that described underarm (2) and upper arm (3) constitute " J " type bar; Described underarm (2) is made of following left arm (29) that is fastened mutually and following right arm (15), and this time left arm is provided with the aperture (30) that penetrates lead; Described upper arm (3) is made of last left arm (26) that is fastened mutually and last right arm (18).

5, folding rack according to claim 4 is characterized in that being provided with in the described aperture (30) sheath (31) that prevents the lead wearing and tearing.

6, folding rack according to claim 1, it is characterized in that being provided with in the described underarm (2) lower spring (34), this lower spring one end is connected on the connecting pin of underarm (2), and the other end links on connecting sheet (32), and this connecting sheet is connected again in the pin (1) simultaneously.

7, folding rack according to claim 1, it is characterized in that being provided with in the described underarm (2) upper spring (33), this upper spring one end is connected on the connecting pin of underarm (2), and the other end links on connecting sheet (32), and this connecting sheet is connected in the upper arm (3) through hook (27) again simultaneously.

8, folding rack according to claim 7 is characterized in that described hook (27) is " S " type, and " S " type of being somebody's turn to do is linked up with an end and linked in the attachment hole (35) of connecting sheet (32), and the other end is connected on the connecting pin of upper arm (3).

9, folding rack according to claim 1, the fine setting that it is characterized in that described pin (1) and underarm (2) place of being hinged hold concurrently locking assembly comprise by attachment screw (5) down pass down successively left arm (29), down right arm (15), and after orientation is arranged on down pin (1) and friction plate (6) between left arm (29) and the following right arm (15), is threaded in down and locks on the turn-knob (12); The fine setting at described underarm (2) and upper arm (3) place of being hinged hold concurrently locking assembly comprise by last attachment screw (28) pass down successively left arm (29), down right arm (15), and after orientation is arranged on down upper arm (3) and friction plate (6) between left arm (29) and the following right arm (15), is threaded in and locks on the turn-knob (16).

10, folding rack according to claim 9 is characterized in that it is to be provided with equipped mutually positioning block (8) and positioning hole (7) between pin and friction plate that the described pin (1) and the orientation of friction plate (6) are provided with structure; It is to be provided with equipped mutually positioning block (8) and positioning hole (7) between upper arm and friction plate that described upper arm (3) is provided with structure with the orientation of friction plate (6).