CN109003411B

CN109003411B - Fireproof detection alarm

Info

Publication number: CN109003411B
Application number: CN201810981453.5A
Authority: CN
Inventors: 朱茂安东尼; 肖永波
Original assignee: Jpci Controls Foshan Gaoming Co ltd
Current assignee: Jpci Controls Foshan Gaoming Co ltd
Priority date: 2018-08-27
Filing date: 2018-08-27
Publication date: 2024-04-02
Anticipated expiration: 2038-08-27
Also published as: CN109003411A; FR3085227B1; FR3085227A1

Abstract

The invention discloses a fireproof detection alarm, which comprises a shell, wherein an electric touch switch is arranged in an inner cavity of the shell and drives a piston rod, the piston rod penetrates through the shell, a support bracket is arranged outside the shell and corresponds to the piston rod, a through hole is arranged on the support bracket and corresponds to the piston rod, a thermal induction safety buckle perpendicular to the piston rod is arranged on the support bracket, the piston rod penetrates through the through hole to prop against the thermal induction safety buckle, the thermal induction safety buckle explodes at a preset temperature, the piston rod moves, so that the electric touch switch is started, other circuits are started or closed by the electric touch switch, and then the operations such as door closing, ventilation smoke discharging or sand blasting are performed.

Description

Fireproof detection alarm

Technical Field

The invention relates to an alarm, in particular to a fireproof detection alarm.

Background

With the increase of modern household fire and electricity consumption, the frequency of household fire occurrence is higher and higher. Once a household fire happens, adverse factors such as untimely extinguishing, lack of fire extinguishing equipment, panic and overwhelming of the bystanders, slow escape and the like easily occur, and finally, serious life and property losses are caused. Discussing the characteristics of household fire and the fireproof countermeasures, and has practical significance for preventing household fire and reducing fire loss.

In existing fire alarm devices, such electrical fire detection is achieved by:

1. the temperature sensitive glass beads are filled with liquid and break when the temperature reaches a certain threshold given by the boiling temperature of the liquid, which is called a heat fragile bulb or a heat bulb.

2. The metal fittings welded together with alloys are used, the breaking point of which is determined by the temperature at which they break, these components being called fuse links.

These solutions have existed for decades and all use the same technology: the device pushes the glass beads longitudinally on the glass beads or pulls the glass beads longitudinally on the safety fuse. The action of breaking the fuse or glass bead is operated by a lever, rod or cable transfer system, an electrical switch that switches one or more electromagnets off or on, a contactor coil, an alarm, etc. This way of use stems from its use in mechanically controlled door opening, sprinklers, ventilation damper smoke evacuation devices, which require significant driving forces of up to hundreds of newtons.

Disclosure of Invention

The invention overcomes the defects in the prior art, and provides the fireproof detection alarm which reduces the equipment size, simplifies mechanical parts, greatly improves the sealing performance of the equipment and is simple to maintain.

In order to solve the technical problems, the invention is realized by the following technical scheme:

the utility model provides a fire prevention detection alarm, includes the shell, be equipped with electric touch switch in the inner chamber of shell, electric touch switch drives the piston rod, the piston rod passes the shell, the shell outside corresponds the piston rod is equipped with the support bracket, the support bracket corresponds the piston rod and is equipped with the through-hole, the support bracket is equipped with the perpendicular to the thermal-induction insurance knot of piston rod, the piston rod passes the through-hole is propped up the thermal-induction insurance knot.

Further, the support bracket is of a -shaped structure and comprises an upper plate and a lower plate, one sides of the upper plate and the lower plate are connected through a vertical plate, the lower plate is provided with a bottom bracket, the upper plate is provided with an oval through hole, and the upper part of the oval through hole corresponds to the bottom bracket and is provided with a half cap body.

Further, the shell is provided with a rectangular fixing piece at the passing position of the piston rod, and the through hole is correspondingly square.

Further, the rectangular fixing piece is provided with a fixing protrusion in a direction away from the shell, the fixing protrusion comprises an external thread section and an extension section, the extension section is sleeved with the corrugated pipe, and the support bracket is fixed to the shell through a round nut.

Further, a loop bar is arranged on one side, far away from the thermal induction safety buckle, of the electric touch switch, a horizontal spring is sleeved on the loop bar, a fixing frame is arranged in the inner cavity, and the horizontal spring is abutted to the fixing frame.

Further, the electric touch switch is provided with a push rod corresponding to the piston rod, a moving part perpendicular to the push rod and the piston rod is arranged between the push rod and the piston rod, a rotating block is hinged in the moving part, the push rod pushes the rotating block to rotate, one side, away from the push rod, of the rotating block is propped against the piston rod, a vertical spring is arranged between the lower part of the moving part and the shell, the upper part of the moving part is pushed by the push rod to move downwards, and a concave position is arranged on the upper part of the rotating block corresponding to the push rod.

Further, the moving part is a frame body, the rotating block is hinged to the frame body through a hinge shaft, an upper connecting rod and a lower connecting rod are respectively arranged on the upper portion and the lower portion of the frame body, a supporting frame is arranged in an inner cavity of the shell, the upper connecting rod penetrates through a supporting through hole of the supporting frame, and the lower connecting rod is sleeved with the vertical spring.

Further, a dust cover is further arranged on the upper portion of the shell, and a perforation is arranged on the dust cover corresponding to the push rod.

Further, the dust cover is provided with a fixing hole for fixing the push rod.

Further, the dust cover is provided with an indicator lamp connected with the electric touch switch.

Compared with the prior art, the invention has the beneficial effects that:

the invention discloses a fireproof detection alarm, which comprises a shell, wherein an electric touch switch is arranged in an inner cavity of the shell and drives a piston rod, the piston rod penetrates through the shell, a support bracket is arranged outside the shell and corresponds to the piston rod, the support bracket is provided with a through hole corresponding to the piston rod, the support bracket is provided with a thermal induction safety buckle perpendicular to the piston rod, the thermal induction safety buckle explodes at a preset temperature, the piston rod moves, and thus the electric touch switch is started, other circuits are started or closed by the electric touch switch, and then the operations such as door closing, ventilation, smoke discharging and sand blasting are performed.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, in which:

FIG. 1 is a schematic view of a thermal sensing safety catch in a vertical state;

FIG. 2 is a schematic view of a thermal-sensing safety buckle in a horizontal state;

FIG. 3 is an exploded view of a fire detection alarm according to the present invention;

FIG. 4 is a top view of a fire detection alarm according to the present invention;

FIG. 5 is a cross-sectional view taken along A-A of FIG. 4;

FIG. 6 is a normal state diagram of a fire detection alarm according to the present invention;

FIG. 7 is a state diagram of the thermal sensing safety catch after bursting;

fig. 8 shows the moving member being moved downward by the push rod.

In the figure, 1-a housing; 2-a dust cap;

3-cover screw; 4, a sealing ring;

5-an electrical switch set screw; 6-an electrical touch switch;

7, a piston rod; 8-a support bracket;

9-a through hole; 10-a thermal induction safety buckle;

11-packaging shell; 12-loop bar;

13—a horizontal spring; 14—a fixed frame;

15-cable joint; 16—a joint nut;

17-upper plate; 18—lower plate;

19—a riser; 20-a shoe;

21-oval through holes; 22-half cap;

23—rectangular fixing piece; 24-fixing protrusions;

25-an external thread segment; 26—an extension;

27—bellows; 28-a nut;

29-binding post; 30—a current shunt;

31—bottom screw; 32-foot rest;

33—screw holes; 34—a push rod;

35—a moving member; 36—a rotating block;

37-vertical spring; 38—a push rod;

39-a concave position; 40-perforation;

41-a fixing hole; 42-indicator light;

43-frame; 44—a hinge shaft;

45—upper connecting rod; 46—lower connecting rod;

47-a support frame; 48-support through holes;

49-hole site; 50-locking;

51—a protective cover; 52-tool.

Detailed Description

The preferred embodiments of the present invention will be described below with reference to the accompanying drawings, it being understood that the preferred embodiments described herein are for illustration and explanation of the present invention only, and are not intended to limit the present invention.

As shown in fig. 1 to 8, the fireproof detection alarm comprises a housing 1, a dust cover 2 is arranged at the upper part of the housing 1, the dust cover 2 and the housing 1 are fixed through a cover screw 3, a sealing ring 4 is arranged between the dust cover 2 and the housing 1, an electric touch switch 6 is fixed in an inner cavity of the housing 1 through an electric switch fixing screw 5 and a protective cover 51, the electric touch switch 6 drives a piston rod 7, the piston rod 7 penetrates through the housing 1, a supporting bracket 8 is arranged outside the housing 1 corresponding to the piston rod 7, a through hole 9 is arranged in the supporting bracket 8 corresponding to the piston rod 7, a thermal induction safety buckle 10 perpendicular to the piston rod 7 is arranged on the supporting bracket 8, the piston rod 7 penetrates through the through hole 9 and props against the thermal induction safety buckle 10, the thermal induction safety buckle 10 can be horizontally or vertically installed, the supporting bracket 8 and the thermal induction safety buckle 10 are protected by using a packaging shell 11 during packaging, a sleeve rod 12 is arranged on one side of the electric touch switch 6 far away from the thermal induction safety buckle 10, a horizontal spring 13 is sleeved on the sleeve rod 12, a fixing frame 14 is arranged in the inner cavity, the electric switch fixing screw 5 and the protective cover 51 is fixedly connected with the fixing frame 14, the horizontal spring 13 is in contact with the fixing frame 14, the fixing frame 1 is arranged corresponding to the electric switch 6, the cable connector 15 is connected with the cable connector 15 through the cable connector 15, and the cable connector 15 is connected with the cable connector 1.

The thermal induction safety catch 10 is formed by two metal sheets which are fused together, the connecting position of the two metal sheets is melted at a preset temperature, the piston rod 7 moves, and the electric trigger switch 6 is started, so that only a small operation force (less than 10 newtons) is needed, the size of the system can be reduced, mechanical parts can be simplified, the sealing performance of equipment is greatly improved, the maintenance is simple, and the time for mandatory annual inspection is greatly reduced.

The support bracket 8 is in a -shaped structure, the -shaped structure enables the heat-sensitive safety buckle 10 to be easier to contact with air flow, the heat-sensitive safety buckle comprises an upper plate 17 and a lower plate 18, one sides of the upper plate 17 and the lower plate 18 are connected through a vertical plate 19, a through hole 9 is formed in the vertical plate 19, a bottom bracket 20 is arranged on the lower plate 18 and used for protecting the heat-sensitive safety buckle 10 from external impact, an elliptical through hole 21 is formed in the upper plate 17, a half cap body 22 is arranged above the elliptical through hole 21 corresponding to the bottom bracket 20, the heat-sensitive safety buckle 10 can be obliquely placed into the elliptical through hole 21, the heat-sensitive safety buckle 10 can be fixed through the half cap body 22 and the bottom bracket 20, and can be placed and removed manually and quickly without tools, meanwhile, as long as the side thrust of the piston rod 7 is effective, the heat-sensitive safety buckle 10 can keep the piston rod 7 in a blocked state, a 49 hole position 49 and the elliptical through hole 21 are also formed in the upper part of the support bracket 8, and a lock catch 50 are fixed by other people, and the heat-sensitive safety buckle 10 can be prevented from being damaged or seriously damaged by a trained technician, and can be installed or cannot be damaged or repaired according to local electrical regulations and applicable test or installation or installation or proper installation or mounting.

The shell 1 is provided with a rectangular fixing piece 23 at the passing position of the piston rod 7, the through hole 9 is correspondingly provided with a rectangular hole, the through hole 9 is fixed on the rectangular fixing piece 23, the rectangular fixing piece 23 is provided with a fixing protrusion 24 in the direction away from the shell 1, the fixing protrusion 24 comprises an external thread section 25 and an extension section 26, the extension section 26 is sheathed with a corrugated tube 27 for sealing, the support bracket 8 is fixed on the shell 1 through a nut 28, and the nut 28 is disassembled and assembled through a special tool 52.

When the melting temperature of the connection position of the thermal induction safety catch 10 is reached, the thermal induction safety catch 10 is melted and separated, the piston rod 7 moves, the electric touch switch 6 is started, the electric touch switch 6 is connected with the binding post 29, the binding post 29 is provided with the current diverter 30, and the operations of closing a door, ventilating, exhausting smoke, blasting sand and the like can be connected.

The foot rest 32 is fixed by the screw 31 at the bottom of the shell 1, and the foot rest 32 is provided with two screw holes 33, so that the foot rest 32 is not exposed out of the shell 1, and can be placed at the bottom of the shell 1 or exposed out of the shell 1.

The electric touch switch 6 is provided with a push rod 34 corresponding to the piston rod 7, a moving part 35 perpendicular to the push rod 34 and the piston rod 7 is arranged between the push rod 34 and the piston rod 7, a rotating block 36 is hinged in the moving part 35, the push rod 34 pushes the rotating block 36 to rotate, one side of the rotating block 36 away from the push rod 34 is propped against the piston rod 7, the side surface of the rotating block 36 is a vertical plane, a vertical spring 37 is arranged between the moving part 35 and the shell 1, the moving part 35 moves downwards through pushing of a push rod 38, a concave position 39 is arranged at the upper part of the rotating block 36 corresponding to the push rod 34, the dust cover 2 is provided with a perforation 40 and a fixing hole 41 for fixedly placing the push rod 38, when the push rod 38 is not used, the push rod 38 can be placed in the fixing hole 41, the dust cover 2 is provided with an indicator lamp 42 connected with the electric touch switch 6, and the part is used for periodically testing whether the electric touch switch 6 works normally.

Wherein, moving member 35 is framework 43, and the pivoted piece 36 articulates in framework 43 through articulated shaft 44, and framework 43 upper portion and lower part are equipped with upper portion connecting rod 45 and lower part connecting rod 46 respectively, and the inner chamber of shell 1 is equipped with support frame 47, and upper portion connecting rod 45 passes the support through-hole 48 of support frame 47, and vertical spring 37 is cup jointed to lower part connecting rod 46.

Referring to fig. 4, in this illustrated state, the thermal sensing safety catch 10 is not damaged, and it abuts against the piston rod 7, the piston rod 7 abuts against the rotating block 36, the rotating block 36 abuts against the push rod 34, and the electrical trigger switch 6 connected to the push rod 34 is connected in a closed or open state.

Referring to fig. 5, in this illustrated state, the heat sensitive safety catch 10 is damaged, the horizontal spring 13 drives the ejector rod 34 to move rightward, the rotating block 36 rotates rightward along the hinge shaft 44, and the piston rod 7 moves rightward in the case where the heat sensitive safety catch 10 cannot be blocked.

Referring to fig. 6, in this illustrated state, the heat sensing safety catch 10 is not damaged, and it abuts against the piston rod 7, in order to test that the action of the electric trigger switch 6 cannot be normal, the push rod 38 is used to push down the reset switch through the through hole 40, the moving block is also moved down together, since the upper portion of the rotating block 36 is provided with the concave position 39 corresponding to the push rod 34, if the action of the electric trigger switch 6 is normal, the right end of the push rod 34 moves into the concave position 39, and the indicator lamp 42 is turned on.

1. Mounting

At the time of installation, the dust cap 2 is removed, and if painting or other work is planned indoors before commissioning, the dust cap 2 must be placed on the alarm after installation until these operations are completed.

The location where the device is placed, or on a wall or on a ceiling, is selected where the air circulates naturally.

The sensitive components of the device are typically already properly oriented for wall or ceiling mounting at the time of shipment.

2. The position of the support bracket 8 can be modified by the 90 ° operating program:

1) The heat sensing safety catch 10 is removed and the round nut 28 is loosened about 1.5mm using the tool 52;

2) Pulling the support bracket 8 to be taken out of the rectangular fixing piece 23;

3) Rotate it by 90 ° and push it back into its recess;

4) Tightening the round nut 28;

5) The heat exchanging sensing safety catch 10 is further exchanged.

6) If necessary, a red plastic lock 50 provided exclusively for this purpose is placed on the support bracket 8.

3. Installation and electrical connection

The alarm is fixed to a wall or ceiling with 4 screws. This may use a stencil of holes printed on the package. The nail gun is not used for this operation.

Opening the dust cap 2, after passing the cable through the cable connector 15, the connection is made according to the selected diagram.

Checking whether the intensity in the circuit corresponds to the value given on the cap label.

If the device has an indicator light 42, it is checked whether its supply voltage meets the specifications of the cover label.

If current splitters 30 are required, they are released from their slots and mounted in the position shown in the connection diagram. Preferably, the unused current shunt 30 is unwound and discarded.

The wires used must be stripped from 6mm to 7mm and inserted completely under the square washers of the terminals of the electric tact switch 6. Each terminal can accommodate at most 0.5 to 2.5mm ² Is provided.

Tightening the screw with a suitable screwdriver, with a recommended torque of 50n.cm.

The cable fitting 15 on the cable is screwed down until a sealed condition is reached.

Cover the dust cap 2. It is recommended that the tightening torque of the cap screw 3 for tightening the dust cap 2 is 120 n.cm-if necessary, the seal is placed on the dust cap 2 (10 are contained in the package).

5. The heat sensitive element is replaced (if an unexpected trip should occur, this repair operation should be performed, and if local standards require it, maintenance should be performed periodically).

If the mechanical device has a latch 50, it is cut.

Pushing the thermally sensitive safety 10 from the middle towards the half cap 22.

When pushing it, slide it upwards and remove it. ( Note that: when the thermally sensitive safety 10 is removed from the support bracket 8, the device enters an alarm state )

Processing in the opposite direction, replacing it with a new identical heat-sensitive safety catch 10.

During this process, care is taken not to damage the silicone bellows 27.

If necessary, a sealing strip is placed in the rectangular hole of the support bracket 8.

-performing a performance test of the electrical switch.

Operation testing of the 5-electrical switch (in the event of an accidental trip, this maintenance operation should be performed and after replacement or disassembly of the thermosensitive element, and maintenance should be performed regularly according to the requirements of the local standard).

Releasing the red push rod 38 attached to the side fixing hole 41 of the plastic housing 1.

It is inserted into the red perforation 40 on the dust cap 2 and pushed in completely, and then the system must be in the same contact position as if the thermal element had tripped.

The push rod 38 is removed and the system must return to its original position and end the alarm.

The push rod 38 is put back into its fixing hole 41.

Finally, it should be noted that: although the present invention has been described in detail with reference to the embodiments, it should be understood that the invention is not limited to the preferred embodiments, but is capable of modification and equivalents to some of the features described in the foregoing embodiments, but is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims

1. The fireproof detection alarm comprises a shell, and is characterized in that an electric touch switch is arranged in an inner cavity of the shell and drives a piston rod, the piston rod penetrates through the shell, a support bracket is arranged outside the shell and corresponds to the piston rod, a through hole is arranged on the support bracket and corresponds to the piston rod, a thermal induction safety buckle perpendicular to the piston rod is arranged on the support bracket, and the piston rod penetrates through the through hole to prop against the thermal induction safety buckle;

the electric touch switch is provided with a push rod corresponding to the piston rod, a moving part perpendicular to the push rod and the piston rod is arranged between the push rod and the piston rod, a rotating block is hinged in the moving part, the push rod pushes the rotating block to rotate, one side of the rotating block, which is far away from the push rod, pushes against the piston rod, a vertical spring is arranged between the lower part of the moving part and the shell, the upper part of the moving part is pushed by the push rod to move downwards, and the upper part of the rotating block is provided with a concave position corresponding to the push rod;

the movable part is a frame body, the rotating block is hinged to the frame body through a hinge shaft, an upper connecting rod and a lower connecting rod are respectively arranged at the upper part and the lower part of the frame body, a supporting frame is arranged in an inner cavity of the shell, the upper connecting rod penetrates through a supporting through hole of the supporting frame, and the lower connecting rod is sleeved with the vertical spring;

a dust cover is further arranged on the upper portion of the shell, and a perforation is arranged on the dust cover corresponding to the push rod;

the dust cover is provided with a fixing hole for fixing the push rod;

the dustproof cover is provided with an indicator lamp connected with the electric touch switch.

2. The fire prevention detection alarm of claim 1, wherein the support bracket is of a structure and comprises an upper plate and a lower plate, one sides of the upper plate and the lower plate are connected through a vertical plate, the lower plate is provided with a bottom bracket, the upper plate is provided with an oval through hole, and a half cap body is arranged above the oval through hole corresponding to the bottom bracket.

3. A fire detection alarm as claimed in claim 1 wherein the housing is provided with a rectangular fixing member at the passing position of the piston rod, and the through hole is provided with a square shape.

4. A fire detection alarm as claimed in claim 3 wherein the rectangular securing member is provided with a securing protrusion in a direction away from the housing, the securing protrusion comprising an externally threaded section and an extension section, the extension section being socket-fitted to the bellows, the support bracket being secured to the housing by a circular nut.

5. The fire protection detection alarm of claim 1, wherein the electrical trigger switch is provided with a loop bar on a side far away from the thermal induction safety catch, the loop bar is sleeved with a horizontal spring, the inner cavity is provided with a fixing frame, and the horizontal spring is abutted against the fixing frame.