CN210566509U

CN210566509U - Fire-proof valve

Info

Publication number: CN210566509U
Application number: CN201921625212.3U
Authority: CN
Inventors: 许兴建
Original assignee: Xiuwu Hongyuan Heating And Cooling Equipment Co Ltd
Current assignee: Xiuwu Hongyuan Heating And Cooling Equipment Co Ltd
Priority date: 2019-09-27
Filing date: 2019-09-27
Publication date: 2020-05-19
Anticipated expiration: 2029-09-27

Abstract

The utility model discloses a fire prevention valve belongs to fan equipment technical field. The utility model provides a fire prevention valve, which comprises a valve body, the blade, the heat is protected the switch, the relay, motor and worm, the ventilation chamber has been seted up at the valve body middle part, the blade is installed at ventilation chamber rear end inner wall, the heat is protected the switch and is installed at ventilation chamber front end inner wall, the relay is installed in the embedded mounting groove of valve body upper end, the link frame top surface on the valve body right side is installed to the motor, the worm is installed inside the link frame, the heat is protected the switch, all establish ties through the wire between relay and the motor, the heat is protected the switch and is realized the break-make through perception ventilation intracavity portion temperature, thereby control relay switching. The utility model discloses can effectively solve the problem that adopts the conflagration situation in the unable timely, comprehensive perception fire prevention valve of temperature fuse among the prior art.

Description

Fire-proof valve

Technical Field

The utility model relates to a fan equipment technical field, more specifically say, relate to a fire prevention valve.

Background

At present, a general fire valve is formed by welding a Q235 galvanized iron plate after forming and processing. The patent document with publication number CN201510860210.2 in the prior art provides a multi-blade high-sealing smoke-discharging ventilation fire-proof valve, which is tightly attached to the blades under the heating condition through an edge sealing sheet, a middle edge sealing sheet and an arc sealing sheet, thereby greatly improving the sealing effect, reducing the air leakage rate and completely meeting the national standard. Although the device has more beneficial effects, the following problems still exist: although the fire-proof valve is provided with the actuating mechanism and the temperature fuse, the temperature fuse cannot timely and comprehensively sense the fire situation in the fire-proof valve, the resetting operation of the actuating mechanism is complex, and the improvement is needed.

SUMMERY OF THE UTILITY MODEL

1. Technical problem to be solved

An object of the utility model is to provide a fire prevention valve to solve the problem that proposes among the above-mentioned background art.

2. Technical scheme

The utility model provides a fire prevention valve, includes valve body, blade, heat protection switch, relay, motor and worm, the ventilation chamber has been seted up at the valve body middle part, the blade is installed at ventilation chamber rear end inner wall, heat protection switch installs at ventilation chamber front end inner wall, the relay is installed in the embedded mounting groove of valve body upper end, the link frame top surface on valve body right side is installed to the motor, the worm is installed inside link frame, all establish ties through the wire between heat protection switch, relay and the motor, the heat protection switch passes through the inside temperature realization break-make in perception ventilation chamber to control relay switching, and then control motor drive worm rotates and drives the blade rotation and close.

Preferably, a plurality of heat protection switches are pre-buried in the ventilation chamber front end inner wall to the temperature variation of perception intracavity different positions can realize that the valve closes at the initial stage of the conflagration.

Preferably, the heat protection switch senses the temperature change in the ventilation cavity through a thermocouple so as to realize on-off.

Preferably, the lower end of the worm is rotatably connected with the bottom surface of the inner side of the connecting frame through a bearing, and the upper end of the worm is coaxially and fixedly connected with a motor output shaft penetrating through the top surface of the connecting frame.

Preferably, a plurality of blades are linearly and equidistantly installed on the inner wall of the rear end of the ventilation cavity, the left end of each blade is rotatably connected with the inner wall of the left side of the ventilation cavity, the right end of each blade penetrates through the inner wall of the right side of the ventilation cavity, extends into the connecting frame and is sleeved with a worm gear, and the worm gear is in meshing transmission with the worm.

Preferably, the seal groove has been seted up to the blade upper end, the welding of blade lower extreme has sealed arch, the size of sealed arch and the size of the size looks adaptation of seal groove.

3. Advantageous effects

Compared with the prior art, the utility model has the advantages of:

1. the utility model discloses can effectively solve the problem that adopts the conflagration situation in the unable timely, comprehensive perception fire prevention valve of temperature fuse among the prior art.

2. The utility model discloses a motor drive worm, worm drive rather than meshing driven blade, can realize the quick closure of blade and open, easy and simple to handle.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic sectional view of a part of the structure of the present invention;

fig. 3 is a schematic view of the structure of opening a plurality of blades in the present invention.

The reference numbers in the figures illustrate: 1. a valve body; 2. a blade; 3. a heat protection switch; 4. a relay; 5. a motor; 6. a worm; 7. a worm gear; 8. a sealing groove; 9. sealing the protrusion; 10. a ventilation cavity.

Detailed Description

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and to simplify the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1-3, the present invention provides a technical solution:

the utility model provides a fire damper, including valve body 1, the blade 2, switch 3 is protected to the heat, relay 4, motor 5 and worm 6, ventilation chamber 10 has been seted up at 1 middle part of valve body, blade 2 is installed at ventilation chamber 10 rear end inner wall, switch 3 is protected to the heat is installed at ventilation chamber 10 front end inner wall, relay 4 is installed in the embedded mounting groove of valve body 1 upper end, the link frame top surface on 1 right side at the valve body is installed to motor 5, worm 6 is installed inside the link frame, switch 3 is protected to the heat, all establish ties through the wire between relay 4 and the motor 5, switch 3 is protected to the heat realizes the break-make through the inside temperature in perception ventilation chamber 10, thereby control relay 4 switching, and then control motor 5 drive worm 6 rotates and drives the rotatory.

Specifically, a plurality of pre-buried heat protect switches 3 of ventilation chamber 10 front end inner wall to the temperature variation of different positions in perception ventilation chamber 10 can realize that the valve is closed at the conflagration initial stage.

Further, the heat protection switch 3 senses the temperature change inside the ventilation cavity 10 through a thermocouple, so that the on-off is realized.

It is worth to say that the lower end of the worm 6 is rotatably connected with the bottom surface of the inner side of the connecting frame through a bearing, and the upper end of the worm 6 is coaxially and fixedly connected with a motor output shaft penetrating through the top surface of the connecting frame.

It is worth noting that a plurality of blades 2 are linearly installed at equal intervals on the inner wall of the rear end of the ventilation cavity 10, the left end of each blade 2 is rotatably connected with the inner wall of the left side of the ventilation cavity 10, the right end of each blade 2 penetrates through the inner wall of the right side of the ventilation cavity 10, extends into the connecting frame and is sleeved with a worm gear 7, and the worm gear 7 is in meshing transmission with the worm 6.

In addition, seal groove 8 has been seted up to blade 2 upper end, and the welding of blade 2 lower extreme has sealed arch 9, and the size of dimension of sealed arch 9 and the size of dimension looks adaptation of seal groove 8. The utility model discloses a block between sealed arch 9 and the seal groove 8 on two blades 2 links to each other realizes whole sealing, avoids the flue gas to reveal.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A fire damper, characterized in that: comprises a valve body (1), a blade (2), a heat protection switch (3), a relay (4), a motor (5) and a worm (6), the middle part of the valve body (1) is provided with a ventilation cavity (10), the blade (2) is arranged on the inner wall of the rear end of the ventilation cavity (10), the heat protection switch (3) is arranged on the inner wall of the front end of the ventilation cavity (10), the relay (4) is arranged in an embedded mounting groove at the upper end of the valve body (1), the motor (5) is arranged on the top surface of the connecting frame on the right side of the valve body (1), the worm (6) is arranged in the connecting frame, the heat protection switch (3), the relay (4) and the motor (5) are connected in series through leads, the heat preservation switch (3) is switched on and off by sensing the internal temperature of the ventilation cavity (10) so as to control the on-off of the relay (4), and then the motor (5) is controlled to drive the worm (6) to rotate and drive the blade (2) to rotate and close.

2. A fire damper as claimed in claim 1, wherein: a plurality of heat protection switches (3) are pre-buried in the inner wall of the front end of the ventilation cavity (10) so as to sense the temperature change of different positions in the ventilation cavity (10), and the valve can be closed in the initial stage of a fire.

3. A fire damper as claimed in claim 1, wherein: the heat preservation switch (3) senses the temperature change in the ventilation cavity (10) through the thermocouple so as to realize on-off.

4. A fire damper as claimed in claim 1, wherein: the lower end of the worm (6) is rotatably connected with the bottom surface of the inner side of the connecting frame through a bearing, and the upper end of the worm (6) is coaxially and fixedly connected with a motor output shaft penetrating through the top surface of the connecting frame.

5. A fire damper as claimed in claim 1, wherein: the ventilating cavity (10) is characterized in that the inner wall of the rear end of the ventilating cavity (10) is provided with a plurality of blades (2) at equal intervals linearly, the left end of each blade (2) is rotatably connected with the inner wall of the left side of the ventilating cavity (10), the right end of each blade (2) penetrates through the inner wall of the right side of the ventilating cavity (10) to extend into a connecting frame and is sleeved with a worm gear (7), and the worm gear (7) is in meshing transmission with a worm (6).

6. A fire damper as claimed in claim 5, wherein: seal groove (8) have been seted up to blade (2) upper end, the welding of blade (2) lower extreme has sealed arch (9), the size of a dimension of sealed arch (9) and the size of a dimension looks adaptation of seal groove (8).