Fireproof valve of ventilation equipment

Abstract

The fireproof valve of the ventilation equipment comprises a valve body, an automatic closing module is fixedly connected to the middle of the top face of the valve body, an output shaft of the automatic closing module penetrates through the valve body, blades are rotationally connected to the inner surface of the valve body, and the top ends of the blades are in transmission connection with the output shaft of the automatic closing module. Mounting plates are fixedly connected to the front side face and the rear side face of the valve body, a driving assembly is arranged at the lower end of the right side face of the valve body and connected with the mounting plates, cleaning brushes are fixedly connected to the bottom faces of the mounting plates, square holes are formed in the front end of the inner surface of the valve body, and an opening and closing assembly is arranged at the front end of the inner surface of the valve body. The front end of the bottom face of the valve body is detachably connected with a dust collection box. The driving assembly drives the mounting plate to move front and back, so that the cleaning brush cleans dust on the inner surface of the valve body, the opening and closing assembly can close the dust collection box, and impurities such as dust are prevented from overflowing from the dust collection box.

Description

Technical Field

[0001] The utility model relates to the technical field of fire dampers, in particular to a fire damper for ventilation equipment. Background Art

[0002] In ventilation ducts, for fire safety, fire dampers need to be installed at predetermined positions to prevent fire from spreading along the ventilation ducts in case of fire. Fire dampers can automatically close at high temperatures to prevent the spread of fire. In the daily use of ventilation ducts, ventilation and air exchange steps can inhale a certain amount of dust, gravel and other impurities, which will reach the fire dampers along the ventilation ducts and eventually accumulate at the bottom of the fire dampers. The long-term accumulation of dust and gravel will interfere with the movement trajectory of the bottom of the blades, thereby affecting the normal rotation of the blades, reducing the tightness of the blade closure, and thus affecting the fire and smoke prevention effects. Utility Model Content

[0003] The utility model aims to provide a fire damper for ventilation equipment to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a fire damper of a ventilation device, comprising a valve body, an automatic closing module fixedly connected to the middle of the top surface of the valve body, the output shaft of the automatic closing module passes through the valve body, a blade is rotatably connected to the inner surface of the valve body, the top of the blade is drivingly connected to the output shaft of the automatic closing module, a mounting plate is fixedly connected to the front and rear sides of the valve body, a driving assembly is provided at the lower end of the right side surface of the valve body, the driving assembly is connected to the mounting plate, a cleaning brush is fixedly connected to the bottom surface of the mounting plate, a square hole is provided at the front end of the inner surface of the valve body, an opening and closing assembly is provided at the front end of the inner surface of the valve body, and a dust box is detachably connected to the front end of the bottom surface of the valve body.

[0005] Preferably, the drive assembly includes a motor, which is fixedly connected to the lower corner of the right side of the valve body, and the motor output shaft is fixedly connected to a threaded rod, and the threaded rod is rotatably connected to the side of the fixed plate at one end away from the motor, and the threaded rod is threadedly connected to a first slider, and the mounting plate is fixedly connected to the side of the first slider.

[0006] Preferably, the opening and closing assembly includes a baffle, which is hinged at the edge of the inner surface of the valve body, the baffle matches the size of the square hole, and the two ends of the top surface of the baffle are fixedly connected with steel wire ropes, and the end of the steel wire rope away from the baffle is fixedly connected to the two ends of the top surface of the mounting plate, the steel wire rope is slidably connected to a rotating wheel, and the rotating wheel is rotatably connected to the lower end of the inner wall of the valve body, and the two ends of the bottom surface of the baffle are fixedly connected with counterweights.

[0007] Preferably, a guide groove is provided at the lower end of the inner wall of the valve body, both ends of the mounting plate are slidably connected to the guide groove, and the inner side surface of the dust collecting box is flush with the side surface of the square hole.

[0008] Preferably, a slide bar is fixedly connected to the left end of the side surface relative to the fixing plate, the slide bar is slidably connected to a second slide bar, and the second slide bar is fixedly connected to the left side surface of the mounting plate.

[0009] Preferably, a controller and a temperature sensor are provided inside the automatic closing module, and the automatic closing module is electrically connected to the motor.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] The utility model drives the threaded rod to rotate by a motor, so that the first slider drives the mounting plate to move forward and backward, so that the cleaning brush cleans the dust on the surface of the valve body; when the mounting plate moves forward, the baffle is driven to flip upward by the wire rope, and the cleaning brush sweeps the dust and other impurities into the dust collecting box; when the mounting plate moves backward, the baffle is flipped downward under the action of the counterweight block, thereby closing the dust collecting box and preventing dust and other impurities from overflowing from the dust collecting box. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic diagram of the structure of the utility model;

[0013] Figure 2 This is a schematic diagram of the valve body structure of the utility model;

[0014] Figure 3 This is a schematic diagram of the structure of the utility model when viewed from above;

[0015] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of part A;

[0016] Figure 5 This is a schematic diagram of the baffle structure of the utility model.

[0017] In the figure: 1. valve body; 2. automatic closing module; 3. blade; 4. fixing plate; 5. driving assembly; 51. motor; 52. threaded rod; 53. first slider; 6. mounting plate; 7. cleaning brush; 8. square hole; 9. opening and closing assembly; 91. baffle; 92. wire rope; 93. rotating wheel; 94. counterweight; 10. dust box; 11. guide groove; 12. sliding rod; 13. second slider. DETAILED DESCRIPTION

[0018] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0019] See also Figure 1-5 The utility model provides a technical solution: a fire damper of a ventilation device, comprising a valve body 1, an automatic closing module 2 is installed on the middle of the top surface of the valve body 1 by bolts, the output shaft of the automatic closing module 2 passes through the valve body 1, a blade 3 is rotatably connected to the inner surface of the valve body 1, the top of the blade 3 is drivingly connected to the output shaft of the automatic closing module 2, a mounting plate 6 is welded to the front and rear sides of the valve body 1, a driving assembly 5 is installed at the lower end of the right side of the valve body 1, a cleaning brush 7 is installed on the bottom surface of the mounting plate 6 by bolts, a square hole 8 is opened at the front end of the inner surface of the valve body 1, an opening and closing assembly 9 is installed at the front end of the inner surface of the valve body 1, and a dust collecting box 10 is installed at the front end of the bottom of the valve body 1 by bolts.

[0020] The driving assembly 5 includes a motor 51, which is installed at the lower corner of the right side of the valve body 1 by bolts, and a threaded rod 52 is installed on the output shaft of the motor 51 through a coupling. The end of the threaded rod 52 away from the motor 51 is installed on the side of the fixed plate 4 through a bearing, and the first slider 53 is threadedly connected to the threaded rod 52, and the mounting plate 6 is installed on the side of the first slider 53 by bolts.

[0021] The opening and closing assembly 9 includes a baffle 91, which is hinged on the edge of the inner surface of the valve body 1. The size of the baffle 91 matches that of the square hole 8. A wire rope 92 is hung on both ends of the top surface of the baffle 91. One end of the wire rope 92 away from the baffle 91 is hung on both ends of the top surface of the mounting plate 6. The middle part of the wire rope 92 is slidably connected to a rotating wheel 93. The rotating wheel 93 is rotatably connected to the lower end of the inner wall of the valve body 1. The counterweight block 94 is installed on both ends of the bottom surface of the baffle 91 by bolts.

[0022] The guide groove 11 is formed at the lower end of the inner wall of the valve body 1 , and both ends of the mounting plate 6 are slidably connected to the guide groove 11 . The inner side surface of the dust collecting box 10 is flush with the side surface of the square hole 8 .

[0023] The slide bar 12 is mounted on the left end of the opposite side of the fixing plate 4 by bolts, and the second slider 13 is slidably connected to the slide bar 12 , and the second slider 13 is mounted on the left side of the mounting plate 6 by bolts.

[0024] A controller and a temperature sensor are installed inside the automatic closing module 2 , and the automatic closing module 2 is electrically connected to the motor 51 .

[0025] Working principle: When the utility model is in use, the motor 51 is started, and the motor 51 drives the threaded rod 52 to rotate, so that the first slider 51 drives the mounting plate 6 to move forward and backward, so that the cleaning brush 7 cleans the dust on the inner surface of the valve body 1. When the mounting plate 6 moves forward, the baffle 91 is driven to flip upward by the wire rope 92, and the cleaning brush 7 sweeps the dust and other impurities into the dust box 10. When the mounting plate 6 moves backward, under the action of the counterweight block 94, the baffle 91 flips downward, thereby closing the dust box 10 to prevent dust and other impurities from overflowing from the dust box 10. The utility model has the advantages of easy use and good use effect.

[0026] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire damper for ventilation equipment, comprising a valve body (1) and a fixing plate (4), characterized in that: An automatic closing module (2) is fixedly connected to the middle of the top surface of the valve body (1), the output shaft of the automatic closing module (2) passes through the valve body (1), the inner surface of the valve body (1) is rotatably connected to a blade (3), the top of the blade (3) is drivingly connected to the output shaft of the automatic closing module (2), the front and rear sides of the valve body (1) are fixedly connected to a mounting plate (6), the lower end of the right side of the valve body (1) is provided with a driving assembly (5), the driving assembly (5) is connected to the mounting plate (6), the bottom surface of the mounting plate (6) is fixedly connected to a cleaning brush (7), the front end of the inner surface of the valve body (1) is provided with a square hole (8), the front end of the inner surface of the valve body (1) is provided with an opening and closing assembly (9), and the front end of the bottom of the valve body (1) is detachably connected to a dust collecting box (10).

2. A fire damper for ventilation equipment according to claim 1, characterized in that: The driving assembly (5) comprises a motor (51), the motor (51) being fixedly connected to the lower corner of the right side surface of the valve body (1), the output shaft of the motor (51) being fixedly connected to a threaded rod (52), the threaded rod (52) being rotatably connected to the side surface of the fixing plate (4) at one end away from the motor (51), the threaded rod (52) being threadably connected to a first slider (53), and the mounting plate (6) being fixedly connected to the side surface of the first slider (53).

3. The fire damper of a ventilation device according to claim 1, characterized in that: The opening and closing assembly (9) comprises a baffle (91), wherein the baffle (91) is hinged on the edge of the inner surface of the valve body (1), the baffle (91) matches the size of the square hole (8), the two ends of the top surface of the baffle (91) are fixedly connected with a steel wire rope (92), the end of the steel wire rope (92) away from the baffle (91) is fixedly connected to the two ends of the top surface of the mounting plate (6), the steel wire rope (92) is slidably connected with a rotating wheel (93), and the rotating wheel (93) is rotatably connected to the lower end of the inner wall of the valve body (1), and the two ends of the bottom surface of the baffle (91) are fixedly connected with a counterweight block (94).

4. The fire damper of a ventilation device according to claim 1, characterized in that: A guide groove (11) is provided at the lower end of the inner wall of the valve body (1), both ends of the mounting plate (6) are slidably connected to the guide groove (11), and the inner side surface of the dust collecting box (10) is flush with the side surface of the square hole (8).

5. The fire damper of a ventilation device according to claim 1, characterized in that: A slide bar (12) is fixedly connected to the left end of the opposite side of the fixed plate (4), and the slide bar (12) is slidably connected to a second slide block (13), and the second slide block (13) is fixedly connected to the left side of the mounting plate (6).

6. The fire damper of a ventilation device according to claim 1, characterized in that: A controller and a temperature sensor are provided inside the automatic closing module (2), and the automatic closing module (2) is electrically connected to the motor (51).

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