CN87217089U - Flush-mounted time-delay lighting switch - Google Patents

Abstract

The utility model relates to a time delay lighting switch or a corridor switch. A flared piston driven by a piston rod moves in the air cylinder to make the air pressure of the upper end and the lower end of the piston unequal. The structure makes the pressure difference of the upper and the lower end surfaces of the piston disappear gradually by the slow inleaking of the air into the cylinder body through the ventilating structure of the cylinder body. The utility model has the advantages of simple structure, small size and low cost. The common standard wire connecting box can be used. The utility model overcomes the disadvantages of the prime corridor switch in the aspects and has complete functions.

Description

flush-mounted time-delay lighting switch

The utility model especially utilizes the time-delay lighting switch of mechanical delay structure about the time-delay lighting switch.

As everyone knows, only need the place of illumination at short notice at some, the stair-corridor of residential houses for example, the cloakroom of hotel, and the corridor of office building etc. does not need the place of long-time illumination, as the words electricity consumption that can obviously save lighting of installing the time-delay lighting switch, especially the stair-corridor to the residential houses is very necessary for this, but it is still not general that unfortunate this delay switch uses at present, and one of them reason is that time-delay lighting switch structure itself is still not ideal enough, exists for example bigger because of structural volume, can not use the terminal box of standard specification, install attractive in appearancely inadequately, and complicated because of construction of switch, manufacturing cost is than problems such as height.

Therefore the utility model proposes a kind of simple in structurely with exactlying at the problems referred to above, and volume is little, can use the terminal box of common standard, low cost of manufacture, the concealed time-delay lighting switch of easy to use and reliable operation.

The utility model time-delay lighting switch need have an installing component, one time-delay structure parts, one electrical contact parts and a functional unit, installing component is one to have the installation panel of the cup-shaped structure body of cylinder, the time-delay structure parts comprise a cylindrical cylinder body and a piston rod assembly, assembling is connected bottom of cup with cylinder block one end, has a through hole in the middle of the bottom of cup, piston rod one end with ladder configuration passes bottom of cup and is positioned at cup, the end that piston rod has piston is positioned at cylinder block, has the ventilation screw on the cylinder block other end, be connected with bolt that has pad and ventilation screw, piston has similar horn mouth shape, make with the rubber-like high-abrasive material, loudspeaker peristoma slightly larger in diameter is in the cylinder block internal diameter, the loudspeaker peristoma is installed like that towards bottom of cup, the electrical contact parts comprise fixed contact, it is fixed on bottom of cup, and be positioned at cup, moving contact is installed on the step piston shaft, and be positioned at above the fixed contact, functional unit is a button, assembling is connected with piston rod one end for it, and be connected with cup or the embedding of installation panel formation phase, leave the free gap between button and cup inwall, the compression spring is set between button and moving contact, between piston rod and cylinder block, establish the compression spring.

Below in conjunction with embodiment and with reference to accompanying drawing the utility model is further elaborated.

Fig. 1 is the top view that schematically illustrates the utility model example structure,

Fig. 2 is the profile along Figure 1A-A line,

Referring to Fig. 1,2 for having the installation panel of the cup-shaped structure body of cylinder 2-2,4 is the cylindrical cylinder body, the bottom of one end and cup 2-2 forms and is threaded, has ventilation screw 4-1 on its other end, be connected with bolt 11 and by pad (not shown) and screw 4-1, pad is made with the felts material, (3) be piston rod assembly, 3 is the piston rod with ladder configuration, the one end has piston 9, its other end passes the through hole in the middle of the cup 2-2 bottom, be positioned at cup 2-2, terrace structure by piston rod 3, make an end that has piston 9 of piston rod 3 be positioned at cylinder block 4, piston 9 has the toroidal structure, make with the rubber-like high-abrasive material, piston loudspeaker peristoma external diameter is slightly larger than the cylinder block internal diameter, the loudspeaker peristoma is installed towards the bottom of cup 2-2, establish compression spring 5 at piston rod 3 and 4 of cylinder block, 8 is fixed contact, be installed on the bottom of cup 2-2, and be positioned at cup 2-2, moving contact 7 is installed on the step piston bar 3, and be positioned at the top of fixed contact 8,1 is button, is connected with the end assembling of piston rod 3, and is connected with the projection 1-1 formation phase embedding that button 1 forms on one's body by the groove 2-3 that forms on cup, establish compression spring 6 at button 1 and 7 of moving contacts, between button 1 and cup 2-2 inwall, leave the free gap.

Below the action principle of present embodiment structure is done concise and to the point narration,

Promote piston rod 3 when pressing button 1 along illustrated case when descending, tubaeform piston 9 is advanced towards the inside of cylinder block 4, thereby the air in the cylinder block 4 is compressed, because of tubaeform structure of piston characteristics, making the air that is compressed face bottom of cup one side along the Elastic Contact that forms between the gentle inboard wall of cylinder block of piston horn mouth is extruded, and can not make the bottom of cup ambient air in this contact-making surface enters cylinder block 4, moving down because of piston rod 3 like this, cause on cylinder block 4 inner carriers 9, air pressure on the lower surface is unequal, pressure in 9 times side spaces of piston is lower, piston 9 superjacent air spaces are communicated with atmosphere, on piston 9, under gas pressure do not wait, thereby make spring 5 temporarily keep additional compressed state, but along with atmosphere constantly slowly in cylinder block 4 is bled in the back lash of 11 on the ventilation screw 4-1 of cylinder block 4 and bolt, make on the piston 9, under draught head reduce gradually, thereby spring 5 is progressively recovered, from additional compressed state until returning to the initial installment state of button 1 when not being pressed.In said process, the closed of contact 7,8 takes place simultaneously and time-delay disconnects, promptly when pressing button 1, switch closure when piston rod 3 is descending, make the passageway lamp bright, the process that above-mentioned compression spring 5 by compression and then recovers takes place simultaneously, and when spring 5 returns to initial installment state, contact 7,8 disconnects fully, and can regulate bleed speed in the cylinder block 4 of air by the degree that compresses that bolt 11 is regulated felt gaskets, reach the adjusting delay time, present embodiment structure maximum delay can reach five minutes

Contact is reliable when in addition, spring 6 being set can making contact 7,8 closed.Terrace structure 4-2 also is set on cylinder block 4, and make piston rod assembly (3) when being in initial installment state by design, the horn mouth of piston 9 partly is positioned at the top of terrace structure 4-2, like this, when spring 5 recovers near initial installment state gradually, move on to the top of ladder 4-2 on the horn mouth part of piston 9, because the external diameter of loudspeaker peristoma is slightly less than the internal diameter of ladder 4-2, can make the air of piston 9 tops enter the cylinder block inner room all around from piston 9 rapidly, make on the piston 9, draught head on the following both ends of the surface rapidly disappears, thereby impel contact 7,8 disconnect rapidly, help improving contact 7,8 useful life.

In addition, inwall upper edge cup longitudinal axis at the cup 2-2 of installation panel 2 is established two groups of grooves symmetrically, every group contains two adjacent strip groove 2-3 and 2-4 that separate with muscle, be used for for a pair of corresponding projection 1-1 that is provided with that embeds on the knob 1, (1-1) (not expression on the figure), button 1 is deviate from cup 2-2, two adjacent strip groove 2-3, the upper topside height of 2-4 is not concordant, but groove width is identical, and the upper topside that makes groove 2-4 is apart from the distance of the cup 2-2 top edge respective distance greater than groove 2-3.Button 1 is by the plastics manufacturing, usually has elasticity slightly, projection can flexibly be pressed into wherein in one pair of groove, also can be by slightly firmly making button 1 rotation one minute angle, allow projection 1-1 become in the embedded groove 2-4 from embedded groove 2-3, the phase embedding that forms button 1 and cup 2-2 is connected, when when the phase embedding that forms button 1 and cup 2-2 is connected, be connected because button 1 will form the phase embedding with cup 2-2 in position, slightly lower as shown in Figure 2, thereby make contact 7,8 keep normally off.

In addition, on the tabular part 2-1 of mounting panel 2, indicator light 10 is set, is used to refer to the time-delay lighting switch in the installation site of field of employment, easy to use.

In sum, the utility model time-delay lighting switch, owing to use time-delay structure parts as described above, therefore make the structure of switch become simpler, small volume, can use the terminal box of common standard, consist of concealed switch for corridor, easy to utilize, in addition, also have the function that can between contact time-delay disconnection and normally closed closing, select or change because of the utility model structure, and can carry out easily the adjusting of delay time, therefore, the function ratio of switch is more complete, and manufacturing cost is not high.

Claims (5)

1, a kind of time-delay lighting switch, comprise the electrical contact parts, the time-delay structure parts, installing component and functional unit, it is characterized in that above-mentioned time-delay structure parts comprise a cylinder block and a piston rod assembly, installing component is one to have the installation panel of the cup-shaped structure body of cylinder, assembling is connected cylinder block one end with bottom of cup, has ventilating structure on its other end, cup central authorities have through hole, one end of piston rod passes bottom of cup, be positioned at cup, the piston rod other end, an end that promptly has piston is positioned at cylinder block, establish the compression spring between piston rod and cylinder block, piston has similar flared configuration, makes with the rubber-like high-abrasive material, piston loudspeaker peristoma external diameter is slightly larger than the cylinder block internal diameter, the loudspeaker peristoma is installed like that towards bottom of cup, and the electrical contact parts comprise fixed contact and moving contact, and fixed contact is installed on the cup, and be positioned at cup, movable contact moves on the piston rod that is installed in the stairstepping formation, and is positioned at the fixed contact top, and functional unit is a button, the end assembling that is positioned at cup of button and piston is connected, and form the phase embedding with cup and be connected, between button and cup inwall, leave the free gap, the compression spring is set between button and moving contact.

2, switch according to claim 1 is characterized in that the ventilating structure on described cylinder block one end is the ventilation screw, forms threaded engagement with the bolt that has soft pad with the ventilation screw and is connected.

3, switch according to claim 1 and 2, it is characterized in that forming between described button and cup structure that the phase embedding is connected and be at the vertical axial two symmetrical groups groove of formation of cup inwall upper edge cup, every group contains two adjacent grooves that have muscle to separate mutually, article two, groove rise not concordant, but groove width equates, on the ammonium button, form a pair of projection of axisymmetric and groove width correspondence, these projections are embedded in the arbitrary group of groove of these grooves, and can be movable in groove.

4, switch according to claim 1 and 2, it is characterized in that described cylinder block inner chamber upper end has a terrace structure that enlarges, the external diameter that enlarges hierarchic structure is slightly larger than piston loudspeaker peristoma external diameter, be designed to when switch is in normally open, the horn-like part of piston is positioned at this and enlarges on the hierarchic structure.

5, switch according to claim 1 and 2 is characterized in that being provided with the indicator light of a Chang Ming, the residing installation site of indicator cock on above-mentioned installation panel.

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