CN201741615U

CN201741615U - Contact cord switch

Info

Publication number: CN201741615U
Application number: CN2010202076712U
Authority: CN
Inventors: 罗松安
Original assignee: Individual
Current assignee: Individual
Priority date: 2010-05-31
Filing date: 2010-05-31
Publication date: 2011-02-09
Anticipated expiration: 2020-05-31

Abstract

The utility model relates to a contact cord switch comprising a base, a contact key switch and a pressure lever, wherein the base comprises a back plate and a bottom plate that are fixedly connected to form an 'L'-shaped structure; the upper surface of the bottom plate is fixedly provided with the contact key switch, of which the upper surface is provided with a convex key, and a key corresponds to the lower surface in the middle of the pressure lever; the upper surface of the bottom plate at any side of the contact key switch fixes the lower clamping surface of a clamp spring, and the upper clamping surface of the clamp spring is fixed at one end of the pressure lever; connected with the upper clamping surface of the clamp spring, one end of the pressure lever is lower than the upper surface of the contact key switch; the head of the other end of the pressure lever is provided with a connecting hole connected with a pull cord, and the bottom plate is provided with a through hole through which the pull cord passes at a position corresponding to the connecting hole; and the body of the pressure lever is not in contact with the base. During application, the cord switch does not use a rotor wheel and other members and accordingly, the phenomenon that the rotor wheel skids is avoided, thus effectively avoiding the situation that the circuit can not be closed or opened due to the skid of the rotor wheel during use.

Description

The contact pulling switch

[technical field]

The utility model relates to a kind of switch, especially relates to a kind of contact pulling switch that utilizes the contact key switch to come the control circuit folding.

[background technology]

Known, pulling switch is made up of members such as base, box body, rotating shaft, moving runner, pull bar, backguy, contact chip and springs; It is less and many that member is formed in the inside of pulling switch, causes its complex structure, and the production and assembly operation is loaded down with trivial details; Simultaneously, the backguy of the pulling switch that uses at present will be passed the crooked duct cylinder lever connecting rod in the box body, so not only causes backguy in use to take place to rub and rupture with cell walls, and also is not easy to connect after backguy rubs; In addition, owing to the reason of moving runner self and with the reasons such as connected mode of rotating shaft, skidding very easily appears in moving runner in use, thereby causes that switch is inoperative, causes occurring connecting the result of circuit or open circuit.

[summary of the invention]

In order to overcome the deficiency in the background technology, the utility model provides a kind of contact pulling switch, and this pulling switch does not use members such as moving runner, and is simultaneously simple in structure, is convenient to assembling.

For achieving the above object, the utility model adopts following technical scheme:

A kind of contact pulling switch comprises base, contact key switch and depression bar; Described base comprises backboard and base plate, and a upper lateral part or the side of the bottom of described backboard and base plate is fixedly connected to form " L " type structure; Be installed with the contact key switch in the base plate upper side, the upper side of described contact key switch is provided with the button of projection, the bottom surfaces at the corresponding depression bar of described button middle part; Be positioned at the following folder face of the fixedly connected clip spring of base plate upper side of any side of contact key switch, the last folder face of described clip spring is fixedlyed connected with the bottom surfaces of depression bar one end; Or on the backboard face of any side of corresponding contact key switch an end of fixedly connected jointed shaft, and it is hinged by an end of jointed shaft and depression bar, the depression bar bottom surfaces is provided with the location notch of straight spring one end of firm clamping or the reference column of straight spring one end of socket in the position of corresponding base plate upper side simultaneously, is provided with corresponding location notch or reference column in the position of the corresponding straight spring other end of base plate upper side; Depression bar one end that folder face or jointed shaft are connected on described and the clip spring is lower than the upper side of contact key switch; The termination of the described depression bar other end is provided with the connecting hole that connects backguy, is provided with the through hole that backguy is passed through in the position of the corresponding connecting hole of base plate; The body of rod of described depression bar does not contact base.

Described contact pulling switch, described base is made as polygonal or circle.

Described contact pulling switch, described base is provided with loam cake.

Owing to adopt described technical scheme, the utlity model has following beneficial effect:

Contact stayguy switch fabric described in the utility model is simple, is convenient to assembling, is convenient to connect backguy, and backguy can not take place to rub and rupture; Simultaneously, because described pulling switch is the folding that comes control circuit by the contact key switch, and do not use member such as moving runner, therefore just do not exist yet and the phenomenon that moving runner skids occurs, efficiently solve in the use because of moving runner skid can't the folding circuit situation take place.

[description of drawings]

Fig. 1 is a schematic diagram of the present utility model;

Fig. 2 is that the utility model A-A is to schematic diagram;

Fig. 3 is the embodiment schematic diagram that the utility model adopts location notch;

Fig. 4 is the embodiment schematic diagram that the utility model adopts reference column.

Among the figure: 1, base; 2, backboard; 3, base plate; 4, contact key switch; 5, button; 6, depression bar; 7, connecting hole; 8, through hole; 9, location notch; 10, reference column; 11, backguy; 12 straight springs; 13, clip spring; 14, jointed shaft.

[embodiment]

Can explain the utility model in more detail by the following examples, open the purpose of this utility model is intended to protect all changes and improvements in the scope of the invention, and the utility model is not limited to the following examples;

1～2 described contact pulling switch in conjunction with the accompanying drawings, this pulling switch comprises base 1, contact key switch 4 and depression bar 6; Described contact key switch 4 is connected circuit by pressing keys 5 in use, and 5 open circuits of pressing keys once more are as the switch key of colour TV and the switch key of video disc player etc.; Described base 1 comprises backboard 2 and base plate 3, is fixedly connected to form " L " type structure by the bottom of backboard 2 and a upper lateral part or the side of base plate 3, as shown in Figure 2; The front shape of base 1 is polygonal or circle; Be installed with contact key switch 4 in base plate 3 upper side, the upper side of described contact key switch 4 is provided with the button 5 of projection, the bottom surfaces at described button 5 corresponding depression bars 6 middle parts guarantees that depression bar 6 by the backguy 11 accurately pressing keys 5 of back of leaving behind, reaches the purpose of folding circuit; Be positioned at the following folder face of the fixedly connected clip spring 13 of base plate 3 upper side of contact key switch 4 any sides, an end of the fixedly connected depression bar 6 of last folder face of described clip spring 13; Depression bar 6 one ends that are connected with folder face on the clip spring 13 are lower than the upper side of contact key switch 4; Because the following folder face of clip spring 13 is fixed on the base plate 3, after the other end of depression bar 6 was left behind by backguy 11, the depression bar 6 that connects with folder face on the clip spring 13 just resetted as automatic the upspringing of clips grip; The termination of described depression bar 6 other ends is provided with the connecting hole 7 that connects backguy 11; Be provided with through hole 8 or fluting that backguy 11 is passed through in the position of base plate 3 corresponding connecting holes 7, be convenient to backguy 11 and be connected with the connecting hole 7 of depression bar 6 by the back; Described depression bar 6 shafts do not contact base 1, and the connection nose end that has guaranteed depression bar 6 is being left behind by backguy 11 or the Shi Buhui that resets under the effect of clip spring 13 influences the effect of leaving behind or resetting of depression bar 6 because of the contact that other are arranged; Adopt material to make depression bar 6 as required with the performance of automatically reseting, and an end of depression bar 6 directly is fixed on the upper side of base plate 3, and by clip spring 13 compression column with fixed 6, upspringing automatically after promptly utilizing the reseting performance of the material that automatically resets that depression bar 6 is left behind resets.

3～4 described contact pulling switches in conjunction with the accompanying drawings, an end of fixedly connected jointed shaft 14 on 2 of the backboards of corresponding contact key switch 4 any sides, and hinged by jointed shaft 14 with an end of depression bar 6; One end of jointed shaft 14 is fixed on the backboard 2, guaranteed that connection nose end depression bar 6 when leaving behind or reset of depression bar 6 rotates for the center of circle along fixing jointed shaft 14, and the structure of jointed shaft 14 has guaranteed that depression bar 6 can not come off by arbitrary end of jointed shaft 14; Depression bar 6 bottom surfaces have the location notch 9 of straight spring 12 1 ends of firm clamping or the reference column 10 of straight spring 12 1 ends of socket in the position of corresponding base plate 3 upper side; Position at corresponding straight spring 12 other ends of base plate 3 upper side is provided with corresponding location notch 9 or reference column 10; The effect of location notch 9 or reference column 10 is positions of fixing straight spring 12, guarantees that straight spring 12 resets depression bar 6 after the connection nose end of depression bar 6 is left behind by backguy 11.

Implement contact pulling switch described in the utility model, the base 1 of described pulling switch is provided with loam cake as required, backguy 11, depression bar 6 and contact key switch 4 is formed after base 1 covers loam cake settle and make action in the closed cavity; Described loam cake does not indicate in the accompanying drawings; Earlier the back side of backboard 2 is fixed to the place that needs to use pulling switch when using described pulling switch, again circuit is inserted described contact key switch 4, groove or the through hole of laying the circuit electric wire is set on backboard or base plate as required, and connecting backguy 11 then can use; Backguy 11 is passed through hole vertical on the base plate 38 and can be connected with the connecting hole 7 on the depression bar 6, need not to pass crooked duct during connection, and backguy 11 is that nature is sagging after connection, do not touch mutually with the inwall of through hole, so not only be easy to connect backguy 11, and friction in use can not take place and cause fracture in backguy 11; Simultaneously, described pulling switch is the closure of coming control circuit by contact key switch 4, promptly in use by the leave behind connection nose end of depression bar 6 of backguy 11, make the bottom surfaces of depression bar 6 press the button 5 that hits contact key switch 4 to connect circuit, the depression bar 6 of leaving behind is once more pressed and is hit 5 open circuits of button; Because described pulling switch do not use members such as moving runner in application, therefore also just do not exist and the phenomenon that moving runner skids do not occur, promptly effectively solved in use because of moving runner skid can't the folding circuit situation take place; In addition, described stayguy switch fabric is simple, is convenient to assembling, is suitable for streamline production.

Claims

1. contact pulling switch, it is characterized in that: this pulling switch comprises base (1), contact key switch (4) and depression bar (6); Described base (1) comprises backboard (2) and base plate (3), and a upper lateral part or the side of the bottom of described backboard (2) and base plate (3) is fixedly connected to form " L " type structure; Be installed with contact key switch (4) in base plate (3) upper side, the upper side of described contact key switch (4) is provided with the button (5) of projection, the bottom surfaces at the corresponding depression bar of described button (5) (6) middle part; Be positioned at the following folder face of base plate (3) the fixedly connected clip spring of upper side (13) of any side of contact key switch (4), the last folder face of described clip spring (13) is fixedlyed connected with the bottom surfaces of depression bar (6) one ends; Or on backboard (2) face of any side of corresponding contact key switch (4) end of fixedly connected jointed shaft (14), and it is hinged with an end of depression bar (6) by jointed shaft (14), depression bar (6) bottom surfaces is provided with the location notch (9) of straight spring (12) one ends of firm clamping or the reference column (10) of straight spring (12) one ends of socket in the position of corresponding base plate (3) upper side simultaneously, is provided with corresponding location notch (9) or reference column (10) in the position of corresponding straight spring (12) other end of base plate (3) upper side; Depression bar (6) one ends that are connected with last folder face of clip spring (13) or jointed shaft (14) are lower than the upper side of contact key switch (4); The termination of described depression bar (6) other end is provided with the connecting hole (7) that connects backguy (11), is provided with the through hole (8) that backguy (11) is passed through in the position of the corresponding connecting hole of base plate (3) (7); The body of rod of described depression bar (6) does not contact base (1).

2. contact pulling switch according to claim 1 is characterized in that: described base (1) is made as polygonal or circle.

3. according to claim 1 or the described contact pulling switch of 2 arbitrary claims, it is characterized in that: described base (1) is provided with loam cake.