CN211082983U

CN211082983U - Automatic fire prevention valve resets

Info

Publication number: CN211082983U
Application number: CN201920787003.2U
Authority: CN
Inventors: 夏建东
Original assignee: Jingjiang Hongdi Environmental Protection Technology Co ltd
Current assignee: Jiangsu Hongdi Purification Engineering Co ltd
Priority date: 2019-05-29
Filing date: 2019-05-29
Publication date: 2020-07-24
Anticipated expiration: 2029-05-29

Abstract

The utility model discloses an automatic fire prevention valve resets, including fire prevention valve body, fusible piece, switch operation case, singlechip, temperature-sensing ware, rotating vane, motor and gear, the fixed welding in inside top of fire prevention valve body has last connecting block, fusible piece fixed mounting is at the back of last connecting block, switch operation case fixed mounting is on the top surface of fire prevention valve body, rotating vane's back top is fixed with first permanent magnet, singlechip fixed mounting is in the inside left side of switch operation case, the top left side of switch operation case is connected with the connecting wire, temperature-sensing ware fixed connection is in the inside left side of fire prevention valve body, the inside of going up the connecting block is connected with rotating vane through the bearing frame. The utility model discloses be provided with first permanent magnet and make the fire prevention valve body use under multiple environment, guaranteed rotating vane's restoration through temperature-resistant chamber and horizontal spring, make the fusible piece be convenient for install.

Description

Automatic fire prevention valve resets

Technical Field

The utility model relates to a fire prevention valve technical field specifically is an automatic fire prevention valve resets.

Background

The smoke exhaust fire damper belongs to fire safety equipment, is generally arranged in a smoke exhaust pipeline and is in an open state at ordinary times, when a fire disaster occurs, the open state is convenient for smoke exhaust, when the temperature of smoke in the smoke exhaust pipeline reaches a certain temperature, fusible pieces in the fire damper are blown, the fire damper can be automatically closed, the fire damper is arranged between pipelines of a building, the effect of preventing fire from spreading can be achieved, and the smoke exhaust fire damper is necessary equipment in a building fire protection system.

At present fire prevention valve needs manual reset after finishing using, makes fire prevention valve automatic re-setting of being not convenient for, has caused certain influence for fire prevention valve's use, and the fusible piece has been fused after fire prevention valve uses simultaneously, needs the manual work to install the fusible piece again, because partial fire prevention valve uses in the pipeline, so be not convenient for install the fusible piece, consequently need a fire prevention valve that automatically resets to solve above-mentioned problem urgently.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an automatic re-setting fire prevention valve to solve the problem that the automatic re-setting of being not convenient for and the easy fuse piece is not convenient for install of the fire prevention valve that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: an automatic reset fire damper comprises a fire damper body, an fusible piece, a switch operating box, a single chip microcomputer, a temperature sensor, a rotating blade, a motor and a gear, wherein an upper connecting block is fixedly welded at the top end inside the fire damper body, the fusible piece is fixedly installed on the back surface of the upper connecting block, the switch operating box is fixedly installed on the surface of the top end of the fire damper body, a first permanent magnet is fixed at the top end of the back surface of the rotating blade, the single chip microcomputer is fixedly installed on the left side inside the switch operating box, the left side of the top end of the switch operating box is connected with a connecting wire, the temperature sensor is fixedly connected on the left side inside the fire damper body, the rotating blade is connected inside the upper connecting block through a bearing seat, the bottom end of the rotating blade is fixedly welded with the connecting shaft, the surface of the top end of the, the surface of ring gear is connected with down the connecting block, the surface coating of connecting axle has rotating spring, the output of motor and the bottom fixed welding of connecting axle, first permanent magnet is connected with the second permanent magnet, and second permanent magnet fixed connection is on the surface of fusible piece, the equal fixed welding in both sides surface of fusible piece has the fixture block, and the outside of fixture block is connected with the inner wall in temperature resistant chamber, the inside in temperature resistant chamber evenly is provided with fusible piece, the last back connection of a set of fusible piece has horizontal spring.

Preferably, the single chip microcomputer is electrically connected with the temperature sensor, and the single chip microcomputer is electrically connected with the motor.

Preferably, three groups of rotating blades are arranged, and the total size of the cross-sectional areas of the rotating blades is the same as that of the fire damper body.

Preferably, the lower connecting block is internally provided with a groove, the gear ring is inserted into the groove in the lower connecting block, and the gear ring and the lower connecting block form a sliding structure.

Preferably, the diameter of the rotary spring is smaller than that of the gear, and three groups of rotary springs are arranged.

Preferably, the gears are provided with three groups, and the gears are symmetrically distributed about the central axis of the lower connecting block.

Compared with the prior art, the beneficial effects of the utility model are that: this automatic fire prevention valve resets is provided with first permanent magnet and makes the fire prevention valve body can use under multiple environment, has guaranteed rotating vane's restoration through temperature-resistant chamber and horizontal spring, makes the fusible piece be convenient for install.

(1) The device is convenient for fire prevention valve body automatic re-setting through motor and gear, makes the fire prevention valve body use under multiple environment, has increased the application scope of fire prevention valve body.

(2) The device is convenient for new fusible piece through temperature-resistant chamber and horizontal spring to pop out, and the second permanent magnet on fusible piece surface and first permanent magnet opposite poles attract each other, have guaranteed rotating vane's restoration, do not need the manual work to reinstall fusible piece, make fusible piece be convenient for install.

Drawings

FIG. 1 is a schematic sectional view of the front view of the structure of the present invention;

fig. 2 is a schematic top view of the lower connecting block and the gear ring structure of the present invention;

FIG. 3 is a schematic side view of the lower connecting block and the gear ring structure of the present invention;

FIG. 4 is a schematic side view of the temperature-resistant chamber and the fixture block structure of the present invention;

FIG. 5 is a schematic front view of the fusible piece and the temperature-resistant chamber of the present invention;

FIG. 6 is a schematic sectional view of the fusible piece and the temperature-resistant chamber of the present invention;

fig. 7 is a schematic control flow diagram of the present invention.

In the figure: 1. a fire damper body; 2. a fusible sheet; 3. a first permanent magnet; 4. opening and closing the operation box; 5. a single chip microcomputer; 6. a connecting wire; 7. an upper connecting block; 8. a temperature sensor; 9. a rotating blade; 10. a lower connecting block; 11. a ring gear; 12. a connecting shaft; 13. a motor; 14. a rotation spring; 15. a gear; 16. a second permanent magnet; 17. a temperature resistant cavity; 18. a clamping block; 19. a horizontal spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-7, the present invention provides an embodiment: the utility model provides an automatic fire prevention valve resets, including fire prevention valve body 1, fusible piece 2, switch operation case 4, singlechip 5, temperature-sensing ware 8, rotating vane 9, motor 13 and gear 15, the fixed welding in inside top of fire prevention valve body 1 has connecting block 7, fusible piece 2 fixed mounting is at the back of last connecting

block

7, 4 fixed mounting in the top surface of fire prevention valve body 1 of switch operation case, the back top of rotating vane 9 is fixed with first

permanent magnet

3, 5 fixed mounting in the inside left side of switch operation case 4 of singlechip.

The single chip 5 and the temperature sensor 8 are electrically connected, the single chip 5 and the motor 13 are electrically connected, the temperature sensor 8 transmits the detected temperature to the single chip 5 all the time, the type of the single chip 5 can be HT66F018, the single chip 5 is an integrated circuit chip, a small and perfect microcomputer system which is formed by integrating a central processing unit CPU with data processing capacity, a random access memory RAM, a read only memory ROM, various I/O ports, interrupt systems, a timer/counter and other functions possibly comprising a display driving circuit, a pulse width modulation circuit, an analog multiplexer, an A/D converter and other circuits on a silicon chip by adopting a super large scale integrated circuit technology is widely applied in the field of industrial control, the working principle is a process capable of automatically completing the task given to the microcomputer, namely a process of the single chip 5 executing a program, the process of the instruction of a strip execution promptly, temperature-sensing ware 8 can be PT-100 temperature-sensing ware 8, the top left side of switch operation case 4 is connected with connecting

wire

6, 8 fixed connection of temperature-sensing ware are in the inside left side of fire prevention valve body 1, the inside of going up connecting block 7 is connected with rotating vane 9 through the bearing frame, rotating vane 9 is provided with three groups, and rotating vane 9's cross-sectional area sum size is the same with fire prevention valve body 1's cross-sectional area sum size, rotating vane 9 is rotatory to be closed and makes fire prevention valve body 1 be in sealed state, prevent the flue gas circulation.

The bottom end fixed welding of rotating blade 9 has connecting axle 12, and the top fixed surface welding of connecting axle 12 has gear 15, gear 15 is provided with three groups, and gear 15 is the symmetric distribution about the center pin of lower connecting block 10, gear 15 can drive the rotating blade 9 rotation of corresponding position, gear 15 meshes with ring gear 11 mutually, the surface of ring gear 11 is connected with lower connecting block 10, the inside of lower connecting block 10 is provided with the recess, ring gear 11 is inserted and is established in the inside recess of lower connecting block 10, the inner wall of the inside recess of lower connecting block 10 is the smooth surface, ring gear 11 constitutes the slidingtype structure with lower connecting block 10, ring gear 11 slides in the inside of lower connecting block 10, thereby can drive gear 15 to rotate, further drive rotating blade 9 and rotate, the surface parcel of connecting axle 12 has rotating spring 14, rotating spring 14's diameter size is less than gear 15, rotating spring 14 is provided with three groups, the torsion of three groups rotating spring 14 is greater than rotating blade 9 pivoted resistance, be convenient for rotating blade 9 is rotatory to close, the output of motor 13 and the bottom end fixed welding of connecting axle 12.

The first permanent magnet 3 is connected with the second permanent magnet 16, the second permanent magnet 16 is fixedly connected with the surface of the fusible piece 2, the magnetism of the first permanent magnet 3 is opposite to that of the second permanent magnet 16, the surfaces of two sides of the fusible piece 2 are fixedly welded with clamping blocks 18, and the outside of fixture block 18 is connected with the inner wall of temperature resistant chamber 17, the through-hole has been seted up to the bottom anterior segment part in temperature resistant chamber 17, be convenient for fusible piece 2 and high-temperature gas contact, the front both sides in temperature resistant chamber 17 are fixed with the baffle, the width size of baffle is the same with the width size of fixture block 18, make the outside in temperature resistant chamber 17 can only stretch out a fusible piece 2, make the second permanent magnet 16 and the 3 position of first permanent magnet on fusible piece 2 surface correspond the distribution, second permanent magnet 16 is convenient for adsorb with first permanent magnet 3 and is connected, the inside in temperature resistant chamber 17 evenly is provided with fusible piece 2, the last back of a set of fusible piece 2 is connected with horizontal spring 19.

The working principle is as follows: when a fire disaster occurs, high-temperature gas passes through the fire valve, the surface of the fusible piece 2 in the fire valve is contacted with the high-temperature gas, when the temperature of the gas conveyed in the fire valve reaches the melting temperature of the fusible piece 2, the fusible piece 2 is fused, the connecting shaft 12 is driven to rotate by the torsion of the rotating spring 14, the rotating blades 9 are driven to rotate by the connecting shaft 12, the fire valve body 1 is in a closed state to prevent the fire from spreading, after the fire disaster is over, the temperature value is always transmitted to the singlechip 5 by the temperature sensor 8, when the temperature is reduced to the value set by the singlechip 5, the singlechip 5 controls the motor 13 to work, the motor 13 drives the connecting shaft 12 to rotate, the connecting shaft 12 drives the gear 15 to rotate, the gear 15 is meshed with the gear ring 11 by the gear 15, the gear ring 11 slides in the lower connecting block 10, the gear ring 11 drives the other gears 15 to rotate, and the three gears 15 drive the, the rotary blade 9 is rotated to be opened so that the fire damper body 1 is in an opened state, and the smoke circulation is facilitated.

According to fig. 4, after fusible link 2 is fused, under horizontal spring 19's elasticity, horizontal spring 19 promotes fusible link 2 and removes to horizontal spring 19's left side, when fixture block 18 on fusible link 2 surface removed the leftmost side in temperature resistant chamber 17, fixture block 18 card is in the inside in temperature resistant chamber 17, the length that fusible link 2 stretches out is the biggest, the left second permanent magnet 16 of fusible link 2 attracts and is connected with first permanent magnet 3, through blockking of temperature resistant chamber 17 left side baffle, fixture block 18 and horizontal spring 19 make fusible link 2's rigidity, thereby make the rigidity of first permanent magnet 3 and rotating vane 9, the reseing of rotating vane 9 has been guaranteed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides an automatic fire prevention valve resets, includes fire prevention valve body (1), fusible piece (2), switch operation case (4), singlechip (5), temperature-sensing ware (8), rotating vane (9), motor (13) and gear (15), its characterized in that: the fire-proof valve comprises a fire-proof valve body (1), wherein an upper connecting block (7) is fixedly welded at the top end inside the fire-proof valve body (1), an fusible piece (2) is fixedly installed at the back of the upper connecting block (7), a switch operation box (4) is fixedly installed on the top surface of the fire-proof valve body (1), a first permanent magnet (3) is fixed at the top end of the back of a rotating blade (9), a single chip microcomputer (5) is fixedly installed on the left side inside the switch operation box (4), a connecting wire (6) is connected on the left side of the top end of the switch operation box (4), a temperature sensor (8) is fixedly connected on the left side inside the fire-proof valve body (1), the rotating blade (9) is connected inside the upper connecting block (7) through a bearing seat, a connecting shaft (12) is fixedly welded at the bottom end of the rotating blade (9, gear (15) and ring gear (11) mesh mutually, the surface of ring gear (11) is connected with down connecting block (10), the surface coating of connecting axle (12) has rotating spring (14), the output of motor (13) and the bottom mounting welding of connecting axle (12), first permanent magnet (3) are connected with second permanent magnet (16), and second permanent magnet (16) fixed connection is on the surface of fusible piece (2), the both sides surface all fixed welding of fusible piece (2) has fixture block (18), and the outside of fixture block (18) is connected with the inner wall in temperature resistant chamber (17), the inside in temperature resistant chamber (17) evenly is provided with fusible piece (2), the last a set of back connection of fusible piece (2) has horizontal spring (19).

2. The automatic-resetting fire damper as recited in claim 1, wherein: the single chip microcomputer (5) is electrically connected with the temperature sensor (8), and the single chip microcomputer (5) is electrically connected with the motor (13).

3. The automatic-resetting fire damper as recited in claim 1, wherein: the fire-proof valve is characterized in that three groups of rotating blades (9) are arranged, and the sum of the cross-sectional areas of the rotating blades (9) is the same as the sum of the cross-sectional areas of the fire-proof valve body (1).

4. The automatic-resetting fire damper as recited in claim 1, wherein: the novel gear ring connecting structure is characterized in that a groove is formed in the lower connecting block (10), the gear ring (11) is inserted into the groove in the lower connecting block (10), and the gear ring (11) and the lower connecting block (10) form a sliding structure.

5. The automatic-resetting fire damper as recited in claim 1, wherein: the diameter of the rotary spring (14) is smaller than that of the gear (15), and three groups of rotary springs (14) are arranged.

6. The automatic-resetting fire damper as recited in claim 1, wherein: the gear (15) is provided with three groups, and the gears (15) are symmetrically distributed around the central shaft of the lower connecting block (10).