CN113066250A - Manual fire alarm with prevent mistake and touch - Google Patents
Manual fire alarm with prevent mistake and touch Download PDFInfo
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- CN113066250A CN113066250A CN202110380960.5A CN202110380960A CN113066250A CN 113066250 A CN113066250 A CN 113066250A CN 202110380960 A CN202110380960 A CN 202110380960A CN 113066250 A CN113066250 A CN 113066250A
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- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/02—Mechanical actuation of the alarm, e.g. by the breaking of a wire
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Abstract
The embodiment of the invention relates to the related technical field of fire fighting, and discloses a manual fire fighting alarm with an anti-false touch function, which comprises an alarm box, a pressing plate and a rotating shaft, wherein the pressing plate and the rotating shaft are positioned in the alarm box; a working cavity is arranged in the alarm box, and a slidable automatic reset rod is arranged in the alarm box; the pressing plate is positioned in the working cavity, positioned on the lower side of the rotating shaft and fixed on the rotating shaft, and a rotatable abutting rod is arranged in the pressing plate; the rotating shaft magnet is fixedly arranged in the rotating shaft, whether the pressing plate is mistakenly touched or not is judged by judging different modes of pressing the pressing plate, when the pressing plate is normally mistakenly touched or continuously mistakenly touched, the contact magnetic block can not contact the alarm triggering block all the time to give an alarm, meanwhile, the pressing plate is reset through the automatic reset rod after a certain time, when the pressing plate is always pressed, the pressing plate is normally given an alarm, a fireman needs to reset to the site at the moment, the increase of the working strength of the fireman caused by the mistaken touch is avoided, and the fire-fighting alarm loss is reduced.
Description
Technical Field
The embodiment of the invention relates to the technical field of fire fighting, in particular to a manual fire fighting alarm capable of preventing mistaken touch.
Background
Manual fire alarm ware uses for the convenience of the resident, and general mounted position is lower, but like this easily passerby or child mistake press, need the fire fighter to reset to the scene behind the manual fire alarm ware of now being pressed by the mistake mostly, so not only can increase fire fighter's working strength, unnecessary loss when still leading to the fact police simultaneously, on the other hand also can influence the normal use of alarm ware.
Disclosure of Invention
Therefore, the embodiment of the invention provides the manual fire alarm with the function of preventing the false touch, and solves the problem that the workload of a fireman is increased due to the fact that the manual fire alarm is easily touched by the mistake.
In order to achieve the above object, an embodiment of the present invention provides the following:
a manual fire alarm with false touch prevention comprises an alarm box, a pressing plate and a rotating shaft, wherein the pressing plate and the rotating shaft are positioned in the alarm box;
a working cavity is arranged in the alarm box, and an automatic reset rod capable of sliding is arranged in the alarm box;
the pressing plate is positioned in the working cavity, positioned on the lower side of the rotating shaft and fixed on the rotating shaft, and a rotatable abutting rod is arranged in the pressing plate;
and a rotating shaft magnet is fixedly arranged in the rotating shaft.
On the basis of the technical scheme, the working chamber front side intercommunication is equipped with the forward intercommunication chamber of opening, the working chamber front side intercommunication is equipped with and is located the automatic re-setting pole chamber of intercommunication chamber downside, the working chamber downside is equipped with the forward manual re-setting axle chamber of opening, manual re-setting axle chamber rear end wall normal running fit connects and is equipped with manual reset shaft, be equipped with the forward restriction chamber of opening in the manual reset shaft, automatic re-setting pole with automatic re-setting pole chamber sliding fit just is located press the clamp plate downside, automatic re-setting pole up end with fixed connection is equipped with the release link spring between the automatic re-setting pole chamber upper end wall, automatic re-setting pole with fixed connection is equipped with the stay cord that resets between the manual re-setting axle, working chamber upper end wall fixed connection is equipped with the pilot lamp that two bilateral symmetry set up.
On the basis of the technical scheme, the right side of the working cavity is provided with a rotating shaft cavity, the left side of the working cavity is provided with a transmission cavity, a wire wheel cavity is arranged at the left side of the transmission cavity, a wire wheel shaft which extends leftwards into the wire wheel cavity and rightwards into the transmission cavity is rotationally matched and connected with the left end wall of the transmission cavity, the tail end of the left side of the wire shaft is fixedly connected with a wire wheel, the tail end of the right side of the wire shaft is fixedly connected with a wire wheel gear, the rotating shaft is in rotating fit with the rotating shaft cavity and extends leftwards into the transmission cavity, a torsion spring is fixedly connected between the right end surface of the rotating shaft and the right end wall of the rotating shaft cavity, the terminal fixed connection in pivot left side be equipped with the pivot gear of line wheel gear engagement, pivot chamber upside intercommunication is equipped with initiative magnetism piece chamber, but initiative magnetism piece intracavity sliding connection is equipped with initiative magnetism piece.
On the basis of the technical scheme, a reset magnet cavity is arranged at the rear side of the working cavity, a main magnet cavity is communicated with the rear side of the reset magnet cavity, a magnetic resistance plate cavity is communicated with the upper side of the reset magnet cavity, a contact magnetic block cavity positioned at the upper side of the main magnet cavity is communicated with the upper side of the magnetic resistance plate cavity, a friction block cavity is communicated with the upper side of the contact magnetic block cavity, a friction block is arranged in the friction block cavity in a sliding connection manner, the upper end surface of the friction block and the upper end wall of the friction block cavity are fixed through a friction block spring, a friction block pull rope is fixedly connected between the friction block and the manual reset shaft, a contact magnetic block capable of abutting against the friction block is slidably connected in the contact magnetic block cavity, the rear end surface of the contact magnetic block and the rear end wall of the contact magnetic block cavity are fixed through a contact magnetic spring, and a contact magnetic pull rope is fixedly connected between the contact magnetic block and the active magnetic block, and an alarm trigger block which can be in contact with the contact magnetic block is fixedly connected in the front end wall of the cavity of the contact magnetic block.
On the basis of the technical scheme, a repelling magnet is arranged in the magnetic resistance plate cavity in a sliding connection mode, the upper end face of the repelling magnet and the upper end wall of the magnetic resistance plate cavity are fixed through a repelling magnet spring, a magnetic resistance plate is arranged on the lower end face of the repelling magnet in a fixed connection mode, an automatic reset magnet is arranged in the reset magnet cavity in a sliding connection mode, a friction strip abutted against the automatic reset magnet is arranged on the lower end wall of the reset magnet cavity in a fixed connection mode, an automatic reset pull rope is arranged between the automatic reset magnet and the automatic reset rod in a fixed connection mode, a main magnet is arranged in the main magnet cavity in a sliding connection mode, the lower end face of the main magnet and the lower end wall of the main magnet cavity are fixed through a main magnet spring, and a main magnet pull rope is arranged between.
On the basis of the technical scheme, a butt rod cavity with a forward opening is formed in the pressing plate, the butt rod can be located in the butt rod, a butt rod spring is fixedly connected to the rear end wall of the butt rod cavity, butt rod shafts are rotatably connected to the left end wall and the right end wall of the butt rod cavity, the butt rod is fixed to the butt rod shafts, and the butt rod spring can be in butt joint with the butt rod shafts.
On the basis of the technical scheme, the elastic force of the abutting rod spring is smaller than that of the torsion spring, so that the abutting rod spring can be in a compression state.
On the basis of the technical scheme, the friction force of the forward movement of the contact magnetic block is greater than the friction force of the backward movement of the contact magnetic block, the friction force of the backward movement of the automatic reset magnet is greater than the forward movement friction force of the automatic reset magnet, and the friction force between the contact magnetic block and the friction block is less than the friction force between the automatic reset magnet and the friction strip, so that the moving speed of the contact magnetic block is greater than the moving speed of the automatic reset magnet.
On the basis of the technical scheme, the abutting rod can just support the pressing plate to be incapable of resetting after abutting against the front end wall of the working cavity.
The embodiment of the invention has the following advantages: the invention judges whether the pressing plate is mistakenly touched or not by different ways of judging the pressing plate, when the pressing plate is normally mistakenly touched or continuously mistakenly touched, the contact magnetic block can not contact the alarm triggering block all the time to give an alarm, meanwhile, the pressing plate is reset by the automatic reset rod after a certain time, when the pressing plate is pressed all the time, the pressing plate is normally given an alarm, and at the moment, a fireman needs to go to the site to reset, so that the increase of the working strength of the fireman caused by the mistaken touch is avoided, and the fire-fighting alarm loss is reduced.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the invention, and do not limit the limit conditions of the invention, so that the invention has no technical essence, and any structural modification, ratio relationship change or size adjustment should still fall within the scope of the technical contents disclosed in the invention without affecting the efficacy and the achievable purpose of the invention.
Fig. 1 is a schematic overall structure diagram of a manual fire alarm with false touch prevention according to an embodiment of the invention.
Fig. 2 is a schematic sectional view of the structure in the direction of a-a in fig. 1.
Fig. 3 is a schematic sectional view of fig. 1 taken along the direction B-B.
Fig. 4 is a schematic sectional view of fig. 1 taken along the direction C-C.
Fig. 5 is an enlarged schematic view of fig. 2 at D.
Fig. 6 is an enlarged schematic view of fig. 4 at E.
Fig. 7 is a schematic position diagram of the spindle magnet 32 (top view) when the pressing plate 20 (right view) is pressed.
Detailed Description
While embodiments of the present invention will be described with reference to particular embodiments, those skilled in the art will readily appreciate that the present invention has additional advantages and benefits that may be realized from the teachings herein, and that the embodiments described are only a few, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 7, the present invention provides a manual fire alarm with false touch prevention, which comprises an alarm box 10, a pressing plate 20 located in the alarm box 10, and a rotating shaft 30;
a working cavity 11 is arranged in the alarm box 10, and a slidable automatic reset rod 19 is arranged in the alarm box 10;
the pressing plate 20 is located in the working cavity 11, the pressing plate 20 is located at the lower side of the rotating shaft 30 and fixed on the rotating shaft 30, and a rotatable abutting rod 22 is arranged in the pressing plate 20;
a rotating shaft magnet 32 is fixedly arranged in the rotating shaft 30.
The front side of the working cavity 11 is communicated with a communicating cavity 12 with a forward opening, the front side of the working cavity 11 is communicated with an automatic reset rod cavity 18 positioned at the lower side of the communicating cavity 12, a manual reset shaft cavity 14 with a forward opening is arranged at the lower side of the working cavity 11, a manual reset shaft 16 is connected and connected with the rear end wall of the manual reset shaft cavity 14 in a rotating fit manner, a limiting cavity 15 with a forward opening is arranged in the manual reset shaft 16, the automatic reset rod 19 is in sliding fit with the automatic reset rod cavity 18 and is positioned on the lower side of the pressing plate 20, a reset rod spring 17 is fixedly connected between the upper end surface of the automatic reset rod 19 and the upper end wall of the automatic reset rod cavity 18, a reset pull rope 35 is fixedly connected between the automatic reset rod 19 and the manual reset shaft 16, two indicator lights 13 which are arranged in bilateral symmetry are fixedly connected to the upper end wall of the working cavity 11.
The right side of the working cavity 11 is provided with a rotating shaft cavity 31, the left side of the working cavity 11 is provided with a transmission cavity 41, a wire wheel cavity 40 is arranged at the left side of the transmission cavity 41, a wire wheel shaft 38 which extends leftwards into the wire wheel cavity 40 and rightwards into the transmission cavity 41 is arranged at the left end wall of the transmission cavity 41 in a rotating fit connection mode, the left end of the line shaft 38 is fixedly connected with a line wheel 39, the right end of the line shaft 38 is fixedly connected with a line wheel gear 37, the rotating shaft 30 is rotatably matched with the rotating shaft cavity 31 and extends leftwards to the inside of the transmission cavity 41, a torsion spring 42 is fixedly connected between the right end surface of the rotating shaft 30 and the right end wall of the rotating shaft cavity 31, the left end of the rotating shaft 30 is fixedly connected with a rotating shaft gear 36 meshed with the reel gear 37, the upper side of the rotating shaft cavity 31 is communicated with an active magnetic block cavity 33, and an active magnetic block 34 is slidably connected in the active magnetic block cavity 33.
A reset magnet cavity 59 is arranged at the rear side of the working cavity 11, a main magnet cavity 61 is communicated with the rear side of the reset magnet cavity 59, a magnetic resistance plate cavity 55 is communicated with the upper side of the reset magnet cavity 59, a contact magnetic block cavity 49 positioned at the upper side of the main magnet cavity 61 is communicated with the upper side of the magnetic resistance plate cavity 55, a friction block cavity 45 is communicated with the upper side of the contact magnetic block cavity 49, a friction block 48 is arranged in the friction block cavity 45 in a sliding connection manner, the upper end surface of the friction block 48 is fixed with the upper end wall of the friction block cavity 45 through a friction block spring 46, a friction block pull rope 47 is fixedly connected between the friction block 48 and the manual reset shaft 16, a contact magnetic block 44 capable of abutting against the friction block 48 is used in the contact magnetic block cavity 49 in a sliding connection manner, and the rear end surface of the contact magnetic block 44 is fixed with the rear end wall of the contact magnetic block cavity 49 through a contact magnetic spring, a contact magnetic pull rope 50 is fixedly connected between the contact magnetic block 44 and the active magnetic block 34, and an alarm trigger block 51 which can be in contact with the contact magnetic block 44 is fixedly connected in the front end wall of the contact magnetic block cavity 49.
The automatic reset device is characterized in that a repelling magnet 53 is arranged in the magnetism resisting plate cavity 55 in a sliding connection mode, the upper end face of the repelling magnet 53 is fixed with the upper end wall of the magnetism resisting plate cavity 55 through a repelling magnet spring 52, a magnetism resisting plate 54 is fixedly connected with the lower end face of the repelling magnet 53, an automatic reset magnet 57 is arranged in the reset magnet cavity 59 in a sliding connection mode, a friction strip 58 which is abutted against the automatic reset magnet 57 is fixedly connected with the lower end wall of the reset magnet cavity 59, an automatic reset pull rope 56 is fixedly connected between the automatic reset magnet 57 and the automatic reset rod 19, a main magnet 63 is arranged in the main magnet cavity 61 in a sliding connection mode, the lower end face of the main magnet 63 and the lower end wall of the main magnet cavity 61 are fixed through a main magnet spring 62, and a main magnet pull rope 60 is fixedly connected between the main magnet 63 and.
An abutting rod cavity 21 with a forward opening is formed in the pressing plate 20, the abutting rod 22 can be located in the abutting rod 22, an abutting rod spring 23 is fixedly connected to the rear end wall of the abutting rod cavity 21, an abutting rod shaft 24 is rotatably connected to the left end wall and the right end wall of the abutting rod cavity 21, the abutting rod 22 is fixed to the abutting rod shaft 24, and the abutting rod spring 23 can abut against the abutting rod shaft 24.
The elastic force of the abutting rod spring 23 is smaller than that of the torsion spring 42, so that the abutting rod spring 23 can be in a compressed state.
The friction force of the forward movement of the contact magnetic block 44 is greater than that of the backward movement, the friction force of the backward movement of the automatic reset magnet 57 is greater than that of the forward movement thereof, and the friction force between the contact magnetic block 44 and the friction block 48 is less than that between the automatic reset magnet 57 and the friction strip 58, so that the contact magnetic block 44 moves at a speed greater than that of the automatic reset magnet 57.
The abutting rod 22 can just support the pressing plate 20 after abutting against the front end wall of the working cavity 11, and cannot be reset.
When the invention is used, in the initial state, the left indicator light 13 is on, the right side is not on, the abutting rod spring 23 is in a compressed state, and the friction block spring 46 is in a compressed state.
When the fire-fighting manual alarm is pressed by mistake, namely the fire-fighting manual alarm is rotated by pressing the pressing plate 20 once, the pressing plate 20 rotates to enable the rotating shaft 30 to drive the rotating shaft magnet 32 to rotate, the time that the rotating shaft magnet 32 corresponds to the driving magnetic block cavity 33 is short, the contact magnetic block 44 cannot be contacted with the alarm trigger block 51, at the moment, 20 is in a one-section pressing state (20-2 in fig. 7), the rotating shaft gear 36 is driven to rotate by overcoming the torsion of the torsion spring 42 through the rotating shaft 30, the rotating shaft gear 36 rotates to drive the reel shaft 38 to rotate through the reel gear 37, the reel shaft 38 rotates to drive the reel 39 to rotate, the reel 39 rotates to pull the main magnet 63 to downwards by overcoming the thrust of the main magnet spring 62 through the main magnet pull rope 60, at the moment, the main magnet 63 corresponds to the reset magnet cavity 59, and the main magnet 63 adsorbs the automatic;
when the pressing plate 20 rotates, the abutting rod 22 rotates under the action of the elastic force of the abutting rod spring 23, so that the abutting rod 22 can just abut against the inner wall of the working cavity 11, and the pressing plate 20 cannot be reset, at the moment, the automatic reset magnet 57 moves backwards, the automatic reset pull rope 56 pulls the automatic reset rod 19 to move upwards to overcome the thrust of the reset rod spring 17, so that the abutting rod 22 rotates reversely, until the abutting rod 22 overcomes the elastic force of the abutting rod spring 23 again to enter the abutting rod cavity 21 under the action of the torsion force of the torsion spring 42, at the moment, the pressing plate 20 resets, the main magnet pull rope 60 is loosened when the wire wheel 39 rotates, so that the main magnet 63 resets under the action of the thrust of the main magnet spring 62, and the automatic reset magnet 57 also resets under the action of the thrust of the reset rod spring 17;
when a child continuously presses mistakenly, namely the rotating shaft magnet 32 intermittently corresponds to the active magnetic block cavity 33 at the moment, the pressing plate 20 can reach a two-stage pressing state (such as 20-3 in fig. 7), the two-stage pressing is carried out at the moment, the active magnetic block 34 intermittently pulls the contact magnetic block 44 to move forwards by overcoming the pulling force of the contact magnetic spring 43 through contacting the magnetic pull rope 50, but the friction force of the forward movement of the contact magnetic block 44 is larger than the friction force of the backward movement of the contact magnetic block, so that the contact magnetic block can not contact the alarm triggering block 51 all the time, an alarm signal can not be generated, meanwhile, the main magnet 63 can move downwards to be separated from the corresponding reset magnet cavity 59, so that the automatic reset magnet 57 can be always in an initial state, and when the child stops playing, the pressing plate 20 can automatically;
when an alarm needs to be started, the pressing plate 20 is pressed to a two-stage state (20-3 in fig. 7) and is still fixed, at the moment, the rotating shaft magnet 32 is always corresponding to the active magnetic block cavity 33, the active magnetic block 34 pulls the contact magnetic block 44 to move forward all the time by contacting with the magnetic pull rope 50 and overcoming the pulling force of the contact magnetic spring 43 until the contact magnetic block 44 is contacted with the alarm trigger block 51, at the moment, the contact magnetic block 44 just contacts with the friction block 48 and is separated from being abutted against the lower end face of the friction block 48, the friction block 48 moves downward under the thrust of the friction block spring 46 so as to limit the contact magnetic block 44 to reset, at the same time, the contact magnetic block 44 also corresponds to the magnetic resistance plate cavity 55, so that the repulsion magnet 53 of the contact magnetic block 44 overcomes the pulling force of the repulsion magnet spring 52 to drive the magnetic resistance plate 54 to move downward, and the main magnet 63, when the alarm triggering block 51 is contacted, the right indicator lamp 13 is on, which indicates that an alarm signal has sent out the press plate 20 to be loosened, and at the moment, the press plate 20 cannot be reset all the time, so that the repeated alarm of subsequent refugees is avoided;
after the fireman arrives at the scene, accessible key makes manual reset shaft 16 rotate, and manual reset shaft 16 rotates accessible reset stay cord 35 and clutch blocks stay cord 47 and drives automatic release lever 19 and clutch blocks 48 upward movement to make press plate 20 and contact magnetic block 44 reset, contact magnetic block 44 butt clutch blocks 48 this moment makes clutch blocks spring 46 be in compression state.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. The utility model provides a manual fire alarm with prevent mistake and touch which characterized in that: comprises an alarm box (10), a pressing plate (20) and a rotating shaft (30), wherein the pressing plate (20) is positioned in the alarm box (10);
a working cavity (11) is arranged in the alarm box (10), and a slidable automatic reset rod (19) is arranged in the alarm box (10);
the pressing plate (20) is positioned in the working cavity (11), the pressing plate (20) is positioned on the lower side of the rotating shaft (30) and fixed on the rotating shaft (30), and a rotatable abutting rod (22) is arranged in the pressing plate (20);
and a rotating shaft magnet (32) is fixedly arranged in the rotating shaft (30).
2. The manual fire alarm with the function of preventing the accidental touch according to claim 1, characterized in that a communication cavity (12) with a forward opening is communicated with the front side of the working cavity (11), an automatic reset rod cavity (18) positioned on the lower side of the communication cavity (12) is communicated with the front side of the working cavity (11), a manual reset shaft cavity (14) with a forward opening is arranged on the lower side of the working cavity (11), a manual reset shaft (16) is connected and connected with the rear end wall of the manual reset shaft cavity (14) in a rotating fit manner, a limiting cavity (15) with a forward opening is arranged in the manual reset shaft (16), the automatic reset rod (19) is in sliding fit with the automatic reset rod cavity (18) and positioned on the lower side of the pressing plate (20), a reset rod spring (17) is fixedly connected between the upper end face of the automatic reset rod (19) and the upper end wall of the automatic reset rod cavity (18), the automatic reset rod (19) and the manual reset shaft (16) are fixedly connected with each other to form a reset pull rope (35), and the upper end wall of the working cavity (11) is fixedly connected with two indicator lamps (13) which are arranged in a bilateral symmetry mode.
3. The manual fire alarm with the function of preventing the accidental touch according to claim 1, characterized in that a rotating shaft cavity (31) is arranged on the right side of the working cavity (11), a transmission cavity (41) is arranged on the left side of the working cavity (11), a cable wheel cavity (40) is arranged on the left side of the transmission cavity (41), a cable wheel (38) extending leftwards into the cable wheel cavity (40) and rightwards into the transmission cavity (41) is connected in a rotationally matched manner in the left end wall of the transmission cavity (41), a cable wheel (39) is fixedly connected on the left end of the cable wheel (38), a cable wheel gear (37) is fixedly connected on the right end of the cable wheel (38), a rotating shaft (30) is rotationally matched with the rotating shaft cavity (31) and extends leftwards into the transmission cavity (41), a torsion spring (42) is fixedly connected between the right end surface of the rotating shaft (30) and the right end wall of the rotating shaft cavity (31), the terminal fixed connection in pivot (30) left side be equipped with take turns pivot gear (36) of gear (37) meshing, pivot chamber (31) upside intercommunication is equipped with initiative magnetism piece chamber (33), but sliding connection is equipped with initiative magnetism piece (34) in the initiative magnetism piece chamber (33).
4. The manual fire alarm with the function of preventing the accidental touch according to claim 1, wherein a reset magnet cavity (59) is arranged at the rear side of the working cavity (11), a main magnet cavity (61) is communicated with the rear side of the reset magnet cavity (59), a magnetic resistance plate cavity (55) is communicated with the upper side of the reset magnet cavity (59), a contact magnetic block cavity (49) positioned at the upper side of the main magnet cavity (61) is communicated with the upper side of the magnetic resistance plate cavity (55), a friction block cavity (45) is communicated with the upper side of the contact magnetic block cavity (49), a friction block (48) is arranged in the friction block cavity (45) in a sliding connection manner, the upper end face of the friction block (48) is fixed with the upper end wall of the friction block cavity (45) through a friction block spring (46), and a friction block pull rope (47) is fixedly connected between the friction block (48) and the manual reset shaft (16), the contact magnetic block (44) capable of being abutted to the friction block (48) is used in the contact magnetic block cavity (49) in a sliding connection mode, the rear end face of the contact magnetic block (44) is fixed to the rear end wall of the contact magnetic block cavity (49) through a contact magnetic spring (43), a contact magnetic pull rope (50) is fixedly connected between the contact magnetic block (44) and the active magnetic block (34), and an alarm trigger block (51) capable of being in contact with the contact magnetic block (44) is fixedly connected to the inner portion of the front end wall of the contact magnetic block cavity (49).
5. The manual fire alarm with the function of preventing the accidental touch as claimed in claim 4, wherein the magnetism-resisting plate cavity (55) is slidably connected with a repelling magnet (53), the upper end face of the repelling magnet (53) is fixed with the upper end wall of the magnetism-resisting plate cavity (55) through a repelling magnet spring (52), the lower end face of the repelling magnet (53) is fixedly connected with a magnetism-resisting plate (54), the resetting magnet cavity (59) is slidably connected with an automatic resetting magnet (57), the lower end wall of the resetting magnet cavity (59) is fixedly connected with a friction bar (58) abutted against the automatic resetting magnet (57), the automatic resetting magnet (57) is fixedly connected with the automatic resetting rod (19) through an automatic resetting pull rope (56), the main magnet cavity (61) is slidably connected with a main magnet (63), and the lower end face of the main magnet (63) is fixedly connected with the lower end wall of the main magnet cavity (61) through a main magnet spring(s), (L), ( 62) And a main magnet pull rope (60) is fixedly connected between the main magnet (63) and the wire wheel (39).
6. The manual fire alarm with the function of preventing the accidental touch according to claim 1, wherein an abutting rod cavity (21) with a forward opening is formed in the pressing plate (20), the abutting rod (22) can be located in the abutting rod (22), an abutting rod spring (23) is fixedly connected to the rear end wall of the abutting rod cavity (21), an abutting rod shaft (24) is rotatably connected to the left end wall and the right end wall of the abutting rod cavity (21), the abutting rod (22) is fixed to the abutting rod shaft (24), and the abutting rod spring (23) can abut against the abutting rod shaft (24).
7. The manual fire alarm with the function of preventing the accidental touch according to claim 6, characterized in that the elastic force of the abutting rod spring (23) is smaller than that of the torsion spring (42), so that the abutting rod spring (23) can be in a compressed state.
8. The manual fire alarm with the function of preventing the accidental touch according to claim 4, characterized in that the friction force of the forward movement of the contact magnetic block (44) is greater than the friction force of the backward movement, the friction force of the backward movement of the automatic reset magnet (57) is greater than the friction force of the forward movement of the automatic reset magnet, the friction force between the contact magnetic block (44) and the friction block (48) is less than the friction force between the automatic reset magnet (57) and the friction strip (58), and the speed of the movement of the contact magnetic block (44) is greater than the speed of the movement of the automatic reset magnet (57).
9. The manual fire alarm with the function of preventing the accidental touch according to claim 1, characterized in that the abutting rod (22) can just support the pressing plate (20) to be unset after abutting with the front end wall of the working cavity (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202110380960.5A CN113066250B (en) | 2021-04-09 | 2021-04-09 | Manual fire alarm with prevent mistake and touch |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110380960.5A CN113066250B (en) | 2021-04-09 | 2021-04-09 | Manual fire alarm with prevent mistake and touch |
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| CN113066250A true CN113066250A (en) | 2021-07-02 |
| CN113066250B CN113066250B (en) | 2023-06-13 |
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| CN210488728U (en) * | 2019-11-20 | 2020-05-08 | 田君 | Fire alarm device mounting box |
| CN111005645A (en) * | 2020-01-14 | 2020-04-14 | 缙云皮新电子科技有限公司 | Automatic sliding door with alarm function based on voice control |
| CN112249831A (en) * | 2020-12-02 | 2021-01-22 | 温州微计智能科技有限公司 | Double-door elevator capable of automatically calling and preventing people from blocking |
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| CN113066250B (en) | 2023-06-13 |
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Effective date of registration: 20230426 Address after: 529000 fourth and fifth floors of workshop 1, building 2 and workshop 2, building 3, No. 7, Henghai Road, Jianghai District, Jiangmen City, Guangdong Province Applicant after: GUANGDONG DONGJUN LIGHTING Co.,Ltd. Address before: No. 152, Yingchun West Road, Taishan District, Tai'an City, Shandong Province 271000 Applicant before: Taian shinuo Technology Co.,Ltd. |
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