CN2230068Y

CN2230068Y - Pressing switch device for speaker-phone

Info

Publication number: CN2230068Y
Application number: CN 95205155
Authority: CN
Inventors: 俞桂钦
Original assignee: YUSHI ELECTRIC APPLIANCE CO Ltd
Current assignee: YUSHI ELECTRIC APPLIANCE CO Ltd
Priority date: 1995-03-14
Filing date: 1995-03-14
Publication date: 1996-06-26
Anticipated expiration: 2005-03-14

Abstract

The utility model discloses a push-button switch device for speaker-phone. One side of the circuit board of the utility model is orderly provided with a plurality of groups of push-button switches; each of the push-button switches is respectively provided with a frame; the two sides of the frame are respectively provided with a plurality of terminals to be inserted with the circuit board; the appropriate position on the frame is provided with a guide groove to make the push-button switches are overlapped with a connecting rod; besides, a push-button rod is respectively arranged in the frame; besides, the appropriate position on the circuit board is also provided with a hanging hook push-button switch; one end of the hanging hook push-button switch is provided with a button which is overlapped with one end of a crank; the other end of the crank is butted with a connecting piece which is arranged on the connecting rod.

Description

The intercom key switch device

The utility model relates to a kind of intercom key switch device.

Traditional building or indoor intercom device of being applied to, the user can select the board of institute's desire conversation number and conversation with it on extension set, when being the board conversation of this extension set and selected number, other extension set also can be selected the board of institute's desire conversation number and conversation with it, because the traditional intercom device of this kind only has a talking path, therefore, when the user converses in formed talking path, easily phase mutual interference, and dialog context, showing no sign of any confidentiality can say.

The purpose of this utility model provides a kind of intercom key switch device.

Technical solution of the present utility model is: the key switches that are equiped with many group boards in regular turn and select doorway machine and select doorbell or door lock on a side of the circuit board of intercom key switch device, be respectively equipped with a framework on the described key switch, both sides on the described framework are equiped with a plurality of terminals respectively, to be embedded together with circuit board, and on described framework the appropriate location of contiguous described terminal, be respectively equipped with a guide groove, so that described key switch and connecting rod overlap, in addition, in described framework, be respectively equipped with a button spindle, on the appropriate location corresponding to guide groove in the described button spindle, offer first drift slot and second drift slot respectively, and between first drift slot and second drift slot, form a skewed slot road, in addition, the appropriate location of contiguous described key switch on circuit board, be provided with a hook key switch, one end of this key switch is set with a button, this button overlaps mutually with an end of crank, the other end of this crank then on connecting rod set contact pin be connected to.

The utility model has the advantages that, guide groove and first by push-button switch, second drift slot also cooperates crank, the action of connecting rod and the design of circuit loop, make the user on extension set during with the conversation of the board of selected conversation number, can form independently talking path respectively, do not interfere with each other, and can simultaneously organize conversation (as: No. 1 extension set is to No. 8 extension sets more, No. 2 extension sets to No. 6 extension sets or No. 3 extension sets to No. 5 extension sets and No. 7 extension sets etc.), independence and confidentiality when increasing conversation out of the ordinary or MPTY, and can operate by key switch, to open door lock or to make the doorbell action.

Below in conjunction with accompanying drawing the utility model is described in further detail.Wherein:

Fig. 1 is the exploded view of the utility model intercom key switch device;

Fig. 2 is the assembly drawing of the utility model circuit board;

Fig. 3 is the exploded view of the utility model push switch;

Fig. 4 is in the schematic diagram of non-conduction position for key switch of the present utility model;

Fig. 5 drives the schematic diagram of hook key switch action for the utility model press element;

Fig. 6 is the schematic diagram of the utility model hook key switch action drives connecting rod action;

Fig. 7 links up with the schematic diagram after the key switch action for the utility model press element drives.

See also shown in Figure 1ly, the utility model is about a kind of intercom key switch device, mainly includes members such as housing seat 1, circuit board 2, case lid 3, crank 4 and connecting rod 5.

As shown in Figures 1 and 2, on the appropriate location, both sides in housing seat 1, be respectively equipped with projection 11, so that circuit board 2 and housing seat 1 attaching mutually, and in this housing seat 1 on the appropriate location at proximate circuitry plate 2 one base angles, convex with a short column 12, so that the axle center hole of crank 4 is installed on this short column 12, and at the upper limb of this housing seat 1, then be provided with one can with its cap that covers mutually 3, this cap 3 is provided with and just listens cylinder base 31, to place receiver 6, in the appropriate position of this tin cylinder base 31, pivot is adorned one and is pushed fastener 32 (as: press button), the bottom that this pushes fastener 32 is provided with a hook portion 321, to engage with set hook switch 25 on the circuit board 2.

Be equiped with a frame body 20 on the side of circuit board 2, the both sides of this frame body 20 are respectively equipped with the storage tank 201 of the suitable spacing of a plurality of maintenances, and on this circuit board 2 on the position corresponding to these storage tanks 201, then be embedded with the key switch 21 of many group selections machine number in regular turn and select the key switch 23 of doorway machine and the key switch 22 of selecting doorbell or door lock, and make described

switch

21,22,23 are seated in the storage tank 201 of frame body 20, and be welded together with circuit board 2, in addition, the appropriate location of the key switch 22 of contiguous described key switch 21 and selection doorbell or door lock on this circuit board 2, be equiped with a hook key switch 25, one end of this key switch 25 is set with a button 251, this button 251 engages with the hook portion 321 of cap 3, and in the appropriate position of this button 251, then be provided with a tenon 252 (as shown in Figure 5), this tenon 252 overlaps mutually with first end of crank 4, second end of this crank 4 then on connecting rod 5 set contact pin 51 be connected to.

Consult Fig. 2 and shown in Figure 3 again, be respectively equipped with a framework 24 on the described

key switch

21,22,23,25, two medial surfaces of described framework 24 are respectively equipped with a plurality of terminals 241, described terminal 241 is connected with the circuit loop of circuit board 2 (owing to the design in board circuit loop, it is not the claimed scope of the utility model, so, do not repeat them here), and on described framework 24, the appropriate location of contiguous described terminal 241, offer a L-shaped guide groove 242, these guide grooves 242 of mat overlap described

key switch

21,22,23 and connecting rod 5; In addition, in described framework 24, be equiped with a button spindle 26 respectively, on the described button spindle 26, appropriate location corresponding to described guide groove 242, described button spindle 26 offers first drift slot 243 and second drift slot 244, and forms a skewed slot road 245, so that can move in the framework relative with it 24 at

first drift slot

243 and 244 of second drift slots.

Connecting rod 5 is installed in the frame body 20 and described key switch 21 of

circuit board

2,22, between 23, on this connecting rod 5 corresponding to described key switch 21, the second end position place of 22 guide groove 242 and crank 4, be respectively equipped with upwardly extending contact pin 51, and make described contact pin 51 just can be overlapped in described key switch 21 respectively, between 22 the skewed slot road 245 and guide groove 242, and second end of crank 4, promptly when key switch is not pressed, the contact pin 51 of this key switch and connecting rod 5 places the position of first drift slot 243, as shown in Figure 4, and make this switch switch to nonconducting state, and when this key switch is pressed, the contact pin 51 of this key switch and connecting rod 5 places the position of second drift slot 244, and makes this switch switch to conducting state.

When the user of this device on No. 2 extension sets, when pressing the key switch of machine number (as No. 14) of institute desire conversation, No. 2 extension sets will be communicated with, at this moment with No. 14 extension sets, if the user presses the key switch 22 of doorbell or door lock, the doorbell of No. 14 boards is sounded.

In addition,, No. 2 extension sets will be communicated with doorway machine if the user on No. 2 extension sets, presses the key switch 23 of selecting doorway machine, at this moment, if the user push door lock or doorbell key switch 22, then door lock will be unlocked.

And when a certain board of described independently multicomponent machine is desired with other extension set conversation (as: No. 1 extension set to No. 8 extension sets, No. 2 extension sets to No. 6 extension sets or No. 3 extension sets to No. 5 extension sets and No. 7 extension sets etc.), described extension set then forms independently talking path respectively, and can not interfere with each other to each other.

In addition, arbitrary button in described board and doorway machine is pressed, be in talking state, and user's desire is when finishing conversation, at this moment, as long as receiver 6 is placed in listening on the cylinder base 31 of cap 3, the hook portion 321 of then pushing fastener 32 will be ordered about hook switch 25 and be moved (as shown in Figure 5) forward, so that the tenon 252 of the button 251 of hook switch 25 drives first end of crank 4, and make the second end drive link 5 of crank 4, can make all switches reply original state, shown in Fig. 6 and Fig. 7 arrow.

Claims

1, a kind of intercom key switch device is characterized in that it includes:

Be equiped with the housing seat of a circuit board in it, convex with a short column on the appropriate location of proximate circuitry plate in the housing seat, so that crank is installed on it;

Be installed in the cap of housing upper limb, pivot is adorned one and is pushed fastener on the appropriate location of this cap;

Be installed in the frame body on the circuit board, both sides on this frame body offer a plurality of storage tanks respectively, and on the described circuit board on the position corresponding to described storage tank, then be embedded with many groups and set the key switch of difference in functionality, be respectively equipped with a framework on the described key switch, on the side of described framework, offer a guide groove, so that described switch and connecting rod overlap, and on circuit board the appropriate location of contiguous described key switch, then be provided with a hook key switch, an end of this key switch is set with a button, to engage with the fastener of pushing of cap, on the appropriate location of described button, be provided with a tenon, this tenon overlaps mutually with first end of crank, and second end of this crank then is connected to connecting rod;

Connecting rod is installed between the guide groove of the frame body of circuit board and key switch, be respectively equipped with upwardly extending contact pin corresponding to the guide groove of described key switch and the position of crank second end on this connecting rod, and make described contact pin be overlapped in the guide groove of described key switch and second end of crank just respectively.

2, the key switches that intercom key switch device as claimed in claim 1, many groups of it is characterized in that on circuit board being embedded are set difference in functionalitys are key switches of many group selections machine number or select the key switch of doorway machine or select the key switch of doorbell or door lock.

3, intercom key switch device as claimed in claim 1 is characterized in that being provided with a hook portion in the bottom of pushing fastener, and this hook portion engages with the button of hook switch.