CN214753478U - Prevent fire door on-off state monitoring switch - Google Patents

Abstract

The utility model relates to a fireproof door opening and closing state monitoring switch, which comprises a key switch component and a pressing plate movably abutted against the pressing key switch component, wherein the key switch component comprises a shell, a control circuit board arranged in the shell and provided with a communication connection module, a key switch electrically connected with the control circuit board, and a key cap with the part movably abutted against the key switch penetrating out of the shell; a groove is formed in the shell, a groove bottom through hole through which the key switch penetrates is formed in the groove bottom of the groove, the key cap is arranged in the groove in a limiting and sliding mode, a first spring with two ends corresponding to and connected with the key cap and the key switch is arranged between the key cap and the key switch, and a second spring with two ends corresponding to and connected with the groove bottom of the groove and the key cap is arranged between the key cap and the groove bottom and sleeved outside the first spring; the pressing plate is movably abutted with the key cap. The utility model discloses a can effectively promote the accuracy of door closer state monitoring of closing, the whole assembly is more simple and convenient, the cost is lower.

Description

Prevent fire door on-off state monitoring switch

Technical Field

The utility model relates to a security protection device, especially a prevent fire door switch door state monitoring switch.

Background

Fire doors are arranged in modern buildings according to the requirements of fire protection regulations. For a fire door which has less traffic at ordinary times, such as a fire door arranged outside a staircase, the fire door is required to be kept in a normally closed state, and dense smoke and the spread of fire behavior can be effectively blocked when a fire disaster occurs. In order to improve the protection capability of the fireproof door, the standard requires that the door opening and closing state of the fireproof door can be monitored in a fire control room, so that the normally closed fireproof door is always in a normal closing state, and at the moment, a detection switch is required to be arranged on the fireproof door for monitoring. The monitoring switch that has set up on preventing fire door adopts the door magnetic switch more, and it is provided with the mainboard of being connected with the control room controller looks electrical signal on the door frame, is provided with the tongue tube on the mainboard as signal switch, is close to the position of tongue tube on the door body, and the installation is fixed with magnet, and when the shut door put in place, magnet triggered the tongue tube closure, provides triggering signal and gives the controller, shows to prevent that fire door is in normal closed condition. However, due to the difference of the batch property of the magnets of the door magnetic switch, the strength of the magnetism and the like, the reed switch is not triggered after being normally closed, and the consistency of the product is poor; and if improve magnet magnetism, can guarantee that the tongue tube is all triggered, nevertheless can lead to the door not closing totally in place, when being in half the state of opening and shutting, also can trigger the tongue tube, be unfavorable for fire control supervisory personnel timely with the fire door closed, when the conflagration breaing out, prevent that fire door has lost the effect of isolated smog and intensity of a fire.

SUMMERY OF THE UTILITY MODEL

To present not enough, the utility model provides a prevent fire door switch door state monitoring switch.

The utility model provides a technical scheme that its technical problem adopted is: a fireproof door opening and closing state monitoring switch comprises a key switch assembly and a pressing plate, wherein the key switch assembly is installed on a door frame, the pressing plate is used for movably abutting against and pressing the key switch assembly and is installed on a door plate, the key switch assembly comprises a shell, a control circuit board, a key switch and a key cap, the shell is used for being installed on the door frame, the control circuit board is arranged in the shell and is provided with a communication connection module, the key switch is electrically connected with the control circuit board, and a part movably abutting against the key switch penetrates out of the shell; a groove is formed in the position, corresponding to the key switch, of the shell, a groove bottom through hole through which the key switch penetrates is formed in the groove bottom of the groove, the key cap is limited and slidably arranged in the groove, a first spring with two ends corresponding to and connected with the key cap and the key switch is arranged between the key cap and the key switch, and a second spring with two ends corresponding to and connected with the groove bottom of the groove and the key cap is arranged between the key cap and the groove bottom and sleeved outside the first spring; the pressing plate is movably abutted with the key cap.

Preferably, the outer side wall of the key cap extends to form an elastic key cap buckle, and a buckle sliding groove matched with the key cap buckle is formed in the groove wall of the groove.

Preferably, the bottom of the groove is provided with an annular positioning boss which is sleeved with the second spring in a matching manner, an annular positioning bulge extends between the first spring and the second spring of the key cap, the first spring is sleeved with an inner ring of the positioning bulge in a matching manner, and the second spring is sleeved with an outer ring of the positioning bulge in a matching manner.

Preferably, the surface of the pressing plate, of the surfaces of the pressing plate that contact the key cap, is larger than the surface of the key cap.

Preferably, the distance between the key cap and the key switch is the same as the natural length of the first spring when the first spring is not stressed.

Preferably, the elastic force of the first spring is greater than the elastic force of the key switch.

Preferably, the pressing plate is slidably disposed on a fixing seat for connecting with the door panel.

Preferably, the fixing seat is of an L-shaped structure, the vertical end of the fixing seat is used for being connected with the door panel, the horizontal end of the fixing seat is in limited sliding connection with the pressing plate, a serrated limit boss clamped and positioned with the pressing plate is arranged on the upper surface of the horizontal end of the fixing seat, the serrations of the limit boss form right-angled serrations inclining outwards, and the bottom of the pressing plate is provided with an elastic pressing plate buckle capable of being clamped with the limit boss.

Preferably, the pressing plate is also in an L-shaped structure, the pressing plate buckle is arranged at the end of the horizontal end of the pressing plate, the surface of the pressing plate buckle opposite to the limit boss is an inclined surface which is inclined downwards and inwards, and the surface far away from the limit boss is a plane which is perpendicular to the bottom surface of the pressing plate.

Preferably, the fixing seat is provided with side plates extending upwards on both sides of the horizontal end, and the two side plates form a pressing plate sliding groove for sliding the pressing plate.

The beneficial effects of the utility model reside in that: the utility model discloses a cost accounts for than the highest magnet in having removed the door magnetic switch, adopt key switch as signal switch, press key switch through installing the press plate machinery on the door body and realize closing the production of door signal, promote the accuracy of door closer state monitoring of closing, the whole assembly is more simple and convenient, the cost is lower, simultaneously through the cooperation between press plate and key cap, can effectively reduce because the door body warp, aversion etc. cause the button to trigger bad probability, through the inside spring of key cap, can effectively protect key switch not receive the damage when closing the door vigorously.

Drawings

Fig. 1 is a schematic sectional structure diagram of an embodiment of the present invention;

fig. 2 is a schematic structural diagram of an embodiment of the present invention;

fig. 3 is an exploded view of an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a housing according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a fixing base according to an embodiment of the present invention;

part names and serial numbers in the figure: 1-key switch assembly 10-shell 11-control circuit board 12-key switch 13-key cap 100-groove 101-groove bottom through hole 102-buckle sliding groove 103-positioning boss 104-front shell 105-rear cover 130-key cap buckle 131-positioning projection 2-pressing plate 20-pressing plate buckle 3-first spring 4-second spring 5-fixed seat 50-limit boss 51-side plate.

Detailed Description

To more clearly illustrate the objects, technical solutions and advantages of the embodiments of the present invention, the present invention will be further described in conjunction with the accompanying drawings and embodiments, which are described in a clear and complete manner. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative efforts belong to the protection scope of the present invention. Furthermore, directional terms as referred to in the present disclosure, such as "upper", "lower", "front", "rear", "left", "right", "inner", "outer", etc., refer only to the direction of the attached drawings, and directional terms used are intended to better and more clearly illustrate and understand the present invention rather than to indicate or imply the orientation the present invention must have, and therefore should not be construed as limiting the present invention.

The embodiment of the utility model provides a as shown in fig. 1-5, a prevent fire door switch door state monitoring switch, including being used for installing the key switch subassembly 1 on the door frame, be used for installing the activity butt on the door plant and press the pressure board 2 of key switch subassembly 1, key switch subassembly 1 just transmits the door as a signal switch and is in the status information of closing or opening, when the door is in the closed condition, press the board 2 and just support and press on key switch subassembly 1, key switch subassembly 1 just outputs corresponding signal that the door closed for monitoring, after the door is opened, press the board 2 just break away from the contact with key switch subassembly 1, corresponding just can not monitor the signal that the door closed, and then just know the state that the door is located, key switch subassembly 1 includes the casing 10 that is used for installing on the door frame, the control scheme board 11 that is equipped with communication connection module sets up in casing 10, The key switch 12 electrically connected with the control circuit board 11, the key cap 13 movably abutted against the key switch 12 penetrate out of the key cap 13 of the casing 10, namely the control circuit board 11, the key switch 12 and the key cap 13 are all installed in the casing 10, and they form a whole body, which is convenient for installation on a door frame and production and assembly, at this time, the casing 10 can be a single front casing, after the front casing is installed on the door frame, the door frame is used as a rear cover, or can be a front casing 104 and a rear cover 105 which are connected and internally form a containing cavity, the front casing 104 is provided with a rear cover 105 and then is installed on the door frame, the installation is more convenient, the communication connection module on the control circuit board 11 is used for communication connection with a controller, so as to know the state of the door in real time, the communication connection can be wired or wireless, and simultaneously the part of the key cap 13 penetrates out of the casing, the button cap 13 is pressed and then abutted against the button switch 12, the button switch 12 is pressed to conduct the control circuit board 11, the control circuit board 11 generates a signal which can be monitored when the door is in a closed state, and the button switch 12 adopts a silica gel button switch, so that the weather resistance of the button switch 12 can be effectively improved; a groove 100 is arranged at a position corresponding to the key switch 12 on the shell 10, a groove bottom through hole 101 through which the key switch 12 penetrates is arranged at the groove bottom of the groove 100, namely, the key switch 12 is arranged on the control circuit board 11, the groove 100 on the shell 10 faces the key switch 12, meanwhile, the key switch 12 penetrates through the through hole and extends into the groove through the groove bottom through hole 101, the key cap 13 is arranged in the groove 100 in a limiting and sliding manner, at the moment, the key cap 13 slides in the groove 100 and slides within a certain distance range, a first spring 3 is arranged between the key cap 13 and the key switch 12, two ends of the first spring 3 are correspondingly connected with the key cap 13 and the key switch 12, namely, one end of the first spring 3 is connected on the key cap 13, the other end of the first spring is connected on the key switch 12, a force guide spring for conducting pressure is formed, and the pressure is conducted through the spring, so that the key switch 12 is prevented from being damaged when the door is closed, protecting the key switch 12 from being influenced by a strong door closing, when the key cap 13 is not pressed, the first spring 3 is in an initial natural length state, namely an unstressed state, the distance between the key cap 13 and the key switch 12 is the same as the natural length of the first spring, when the key cap 13 is not pressed, the first spring 3 does not apply pressure to the key switch 12, a second spring 4 is arranged between the key cap 13 and the groove bottom of the groove 100, the two ends of the second spring which are sleeved outside the first spring 3 are correspondingly connected with the groove bottom of the groove 100 and the key cap 13, the second spring 4 is sleeved outside the first spring 3, one end of the second spring is connected with the key cap 13, the other end of the second spring is connected with the groove bottom of the groove 100, the groove 100 is arranged on the shell 10, namely the other end of the second spring 4 is connected on the shell 10, and the position of the shell 10 is fixed in application, the second spring 4 is applied with force after the key cap 13 is pressed, the second spring 4 is compressed, when the pressure disappears, the key cap 13 returns to the initial position under the action of the elastic force of the second spring 4, and the second spring 4 forms a return spring; the pressing plate 2 is movably abutted with the key cap 13, in a door closing state, the pressing plate 2 presses the key cap 13, the key cap 13 slides in the groove 100 and applies force to the first spring 3 and the second spring 4, the first spring 3 transmits the force to the key switch 12, the key switch 12 is pressed to conduct the control circuit board 11 to form a door closing signal, and the second spring 4 is in a compressed state. In the structure, a magnet with the highest cost ratio in the traditional door magnetic switch is removed, the key switch 12 is used as a signal switch for door closing detection, the key cap 13 is arranged in front of the key switch, different springs are arranged between the key cap 13 and the key switch 12, the received pressure can be buffered and then applied to the key switch 12, the key cap 13 can be returned to the initial state when the pressure is disappeared, namely the door opening state, the generation of a door closing signal is realized by mechanically pressing the key switch 12 through the pressing plate 2 arranged on the door body when the door is closed, the monitoring of the door opening and closing state of the fireproof door is realized, the monitoring accuracy of the door closing state of the door closer is improved, the whole assembly is simpler and more convenient, the cost is lower, meanwhile, the probability of poor key triggering caused by the deformation, the displacement and the like of the door body can be effectively reduced through the cooperation between the pressing plate 2 and the key cap 13, and the springs in the key cap 13, the key switch 12 can be effectively protected from being damaged when the door is closed vigorously.

In a further modification, as shown in fig. 3 and 4, an elastic key cap buckle 130 extends from an outer side wall of the key cap 13, and a buckle sliding groove 102 that is matched with the key cap buckle 130 is provided on a groove wall of the groove 100. The key cap buckle 130 and the key cap 13 are an integral structure, the key cap buckle 130 is located at two symmetrical sides, such as the left side and the right side, of the outer wall of the key cap 13, when it is desired to install keycap 13 in recess 100, keycap latch 130 is squeezed, then the key cap 13 is put into the groove 100, then the key cap buckle 130 returns to the initial state under the action of the elastic force and is clamped into the corresponding buckle chute 102, as key cap 13 slides in recess 100, key cap catch 130 slides in catch slide 102, meanwhile, the key cap 13 cannot fall off from the groove 100 due to the clamping of the two, so that under the action of the second spring 4, when the key cap 13 is not extruded, the button cap 13 is always kept at a far end far away from the button switch 12, the initial state of the button cap 13 is kept at a position far away from the button switch 12, the effective pressing distance of the button cap 13 is increased, and the accuracy of the switch is improved.

In a further improvement, as shown in fig. 3, an annular positioning boss 103 is disposed at the bottom of the groove 100 and is fitted into the second spring 4 in a matching manner, an outer edge of the positioning boss 103 is in clearance fit with an inner diameter of the second spring 4, as shown in fig. 1, an annular positioning protrusion 131 extends between the first spring 3 and the second spring 4 through the key cap 13, the first spring 3 is fitted into an inner ring of the positioning protrusion 131 in a matching manner, the second spring 4 is fitted into an outer ring of the positioning protrusion 131 in a matching manner, at this time, an outer edge of the positioning protrusion 131 is in clearance fit with an inner diameter of the second spring 4, and an inner diameter of the positioning protrusion 131 is in clearance fit with the first spring 3. The groove bottom through hole 101 is located at the center of the positioning boss 103 at the bottom of the groove 100, which means that the positioning boss 103 and the positioning protrusion 131 are opposite to each other on the same central axis.

As a further modification, as shown in fig. 1 to 3, of the surfaces of the pressing plate 2 that abut against the key caps 13, the surface of the pressing plate 2 is larger than the surface of the key caps 13. According to 2 surface dimensions of pressing the board be greater than the key cap 13 surface, just when making the door body take place certain deformation or aversion, also can guarantee to press the effective pressing effect of board 2 to key cap 13 according to, the reliability is higher.

In a further improvement, the elastic force of the first spring 3 is larger than the elastic force of the key switch 12. This ensures that the first spring 3 triggers the operation of the push switch 12 when the push cap 13 is pressed.

In a further improvement, as shown in fig. 1 to 3, the pressing plate 2 is slidably disposed on a fixing seat 5 for connecting with a door panel. Utilize fixing base 5 to come to connect on the door plant according to pressure board 2, press board 2 to establish on the fixing base spacing cunning simultaneously and just mean that its position can be adjusted and can be fixed, press board 2 to be adjustable for fixing base 5 front and back position promptly, be favorable to pressing the pressure that board 2 can both produce the pressure to key cap 13 in the different positions on fixing base 5, even there is certain distance between door frame and the door, also enable to press the effectual key cap 13 that presses of board 2, trigger signal switch, reach the effect of monitoring fire door switch, thereby the door frame installation of the different forms of adaptation, use application range is wider, adapt to different installation use scenes, even the door body takes place certain skew and also can guarantee monitoring switch's normal use. For the fixing seat 5, as shown in fig. 1 to 3 and 5, the fixing seat 5 is an L-shaped structure, a vertical end of the fixing seat 5 is connected to the door panel, a horizontal end of the fixing seat is connected to the pressing panel 2 in a limited sliding manner, that is, the vertical end of the L-shaped fixing seat 5 is connected to the door panel, a screw mounting hole is formed in the fixing seat, and the edge of the fixing seat and the edge of the door are aligned, attached, mounted and fixed, so that the connection to the door panel is facilitated, the sliding of the pressing panel 2 is not affected, and the position of the fixing seat in the horizontal direction is conveniently adjusted, the upper surface of the horizontal end of the fixing seat 5 is provided with a serrated limiting boss 50 which is clamped and positioned with the pressing panel 2, the serrations of the limiting boss 50 form an outward inclined right-angle serration, that is, one surface of the serration of the limiting boss 50 facing the pressing panel 2 is an inclined surface, and the other surface is a vertical surface, and the width of the limiting boss 50 is matched with the width of the bottom of the pressing panel 2, its length then sets up according to the different situations that need press the sliding distance of clamp plate 2, when press clamp plate 2 pack into the horizontal end of fixing base 5, because the setting of inclined plane, just slide to required position with press clamp plate 2 very easily, when needs are taken out press clamp plate 2 from the horizontal end of fixing base 5, will receive the pulling force of perpendicular and prevent the freedom of pressing clamp plate 2 to take out, it is elastic press clamp 20 that has that can block with spacing boss 50 mutually that the saw tooth looks block that carries on spacing with spacing boss 50 sets up the bottom of press clamp plate 2. Corresponding to the fixed seat 5, the pressing plate 2 is also in an L-shaped structure, the pressing plate buckle 20 is arranged at the end of the horizontal end of the pressing plate 2, the surface of the pressing plate buckle 20 opposite to the limiting boss 50 is an inclined surface inclined downwards and inwards, and the surface far away from the limiting boss 50 is a plane perpendicular to the bottom surface of the pressing plate 2, so that when the pressing plate 2 is installed on the fixed seat 5, the inclined surface on the pressing plate buckle 20 and the inclined surface on the saw teeth of the limiting boss 50 form an inclined wedge to slide, the pressing plate 2 is easily installed on the fixed seat 5, and after the pressing plate buckle 20 is installed, the plane of the pressing plate buckle 20 abuts against the vertical surface on the saw teeth of the limiting boss 50 to form a limiting position. In order to facilitate the sliding of the pressing plate 5, the fixing base 5 has side plates 51 extending upward on both sides of the horizontal end, that is, the side plates 51 are disposed on both sides parallel to the sliding direction of the pressing plate 2, and the two side plates 51 form a sliding chute of the pressing plate 2, for example, each side plate 51 is disposed in an inverted L-shaped structure, the two side plates 51 are disposed opposite to each other to form a sliding chute of the pressing plate, or each side plate 51 is disposed as a vertically disposed flat plate, and then a clamping groove is disposed on the flat plate, and both sides of the pressing plate 2 are correspondingly clamped in the clamping groove and slide, so that different structural arrangements can be performed according to different requirements.

It will be understood that modifications and variations can be made by persons skilled in the art in light of the above teachings and all such modifications and variations are considered to be within the scope of the invention as defined by the following claims.

Claims (10)

1. The utility model provides a prevent fire door switch door state monitoring switch which characterized in that: the door frame comprises a key switch assembly and a pressing plate, wherein the key switch assembly is arranged on a door frame, the pressing plate is movably abutted to the door frame and presses the key switch assembly, and the key switch assembly comprises a shell, a control circuit board, a key switch and a key cap, the shell is arranged on the door frame, the control circuit board is arranged in the shell and is provided with a communication connection module, the key switch is electrically connected with the control circuit board, and the part movably abutted to the key switch penetrates out of the shell; a groove is formed in the position, corresponding to the key switch, of the shell, a groove bottom through hole through which the key switch penetrates is formed in the groove bottom of the groove, the key cap is limited and slidably arranged in the groove, a first spring with two ends corresponding to and connected with the key cap and the key switch is arranged between the key cap and the key switch, and a second spring with two ends corresponding to and connected with the groove bottom of the groove and the key cap is arranged between the key cap and the groove bottom and sleeved outside the first spring; the pressing plate is movably abutted with the key cap.

2. The switch for monitoring the opening and closing state of the fire door as claimed in claim 1, wherein the outer sidewall of the key cap extends to form an elastic key cap buckle, and a buckle chute matched with the key cap buckle is arranged on the groove wall of the groove.

3. The switch for monitoring the opening and closing state of the fire door according to claim 1, wherein the bottom of the groove is provided with an annular positioning boss which is sleeved with the second spring in a matching manner, the key cap extends to form an annular positioning protrusion between the first spring and the second spring, the first spring is sleeved with an inner ring of the positioning protrusion in a matching manner, and the second spring is sleeved with an outer ring of the positioning protrusion in a matching manner.

4. The switch for monitoring the opening and closing state of the fire door according to claim 1, wherein the surface of the pressing plate abutting against the key cap is larger than the surface of the key cap.

5. The switch for monitoring the opening and closing state of the fire door according to claim 1, wherein the distance between the key cap and the key switch is the same as the natural length of the first spring when the first spring is not stressed.

6. The switch for monitoring the opening and closing state of the fire door according to claim 1, wherein the first spring has an elastic force larger than that of the push switch itself.

7. The switch for monitoring the opening and closing state of the fire door as claimed in claim 1, wherein the pressing plate is slidably disposed on a fixing seat for connecting with the door panel.

8. The switch for monitoring the opening and closing state of the fire door as claimed in claim 7, wherein the fixing base is of an L-shaped structure, the vertical end of the fixing base is connected with the door panel, the horizontal end of the fixing base is connected with the pressing plate in a limiting and sliding manner, the upper surface of the horizontal end of the fixing base is provided with a serrated limiting boss which is clamped and positioned with the pressing plate, the serrations of the limiting boss form outwards inclined right-angled serrations, and the bottom of the pressing plate is provided with an elastic pressing plate buckle which can be clamped with the limiting boss.

9. The switch for monitoring the opening and closing state of the fire door according to claim 8, wherein the pressing plate is also formed in an L-shaped structure, the pressing plate buckle is disposed at the end of the horizontal end of the pressing plate, the surface of the pressing plate buckle opposite to the limit boss is an inclined surface inclined downward and inward, and the surface far away from the limit boss is a plane perpendicular to the bottom surface of the pressing plate.

10. The switch for monitoring the opening and closing state of the fire door according to claim 8, wherein the fixing base is provided with side plates extending upwards from both sides of the horizontal end, and the two side plates form a pressing plate sliding groove for sliding the pressing plate.

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