High barrier fire damper

Abstract

The utility model relates to fire damper technical field discloses a kind of high barrier fire damper, including valve cylinder, controller is fixedly arranged on the valve cylinder outside, mounting hole is all set up in the four corners of the front and rear ends of valve cylinder, double blocking mechanism is arranged in the valve cylinder, clamping mechanism is arranged in the front and rear ends of valve cylinder, double blocking mechanism includes side baffle and stack baffle, the number of side baffle and stack baffle is two, two side baffles and stack baffles are rotatably arranged in the both sides of valve cylinder, screw rod is rotatably arranged in the valve cylinder, and one end of screw rod is fixedly connected in the inside of controller.

Description

Technical Field

[0001] This utility model relates to the field of fire damper technology, and in particular to a high-barrier fire damper. Background Technology

[0002] Fire dampers are installed on the supply and return air ducts of ventilation and air conditioning systems. They are normally open, but close when the temperature of the smoke in the duct reaches 70°C during a fire. They must meet the requirements for smoke leakage and fire resistance integrity for a certain period of time to isolate smoke and prevent fire. Fire dampers are generally composed of components such as valve body, blades, actuator, and temperature sensor.

[0003] Research indicates that existing fire dampers typically use one-way baffles to block fire during use. However, when subjected to prolonged attacks from a single or two-sided fire, the blocking effect of the single-blade anti-slip valve is greatly reduced, allowing the fire to spread and expand its range. Furthermore, although fire dampers are suspended from ventilation ducts using independent ropes, the bolts used for fixing can easily loosen over time, causing the fire dampers to loosen when attacked by fire, further expanding the fire's range.

[0004] Therefore, those skilled in the art have provided a high-barrier fire damper to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this utility model is to overcome the shortcomings of the existing technology and provide a high-barrier fire damper. This fire damper adopts a dual-barrier design, which protects the control system from the impact of fire from both sides and increases the strength of the valve cylinder in blocking the spread of fire and dense smoke, thereby controlling the spread of fire. At the same time, it can enhance the stability of the valve cylinder installation and further improve the barrier performance of the valve cylinder.

[0006] To achieve the above objectives, this utility model provides a high-barrier fireproof valve, including a valve cylinder, a controller fixedly installed on the outside of the valve cylinder, mounting holes opened at the four corners of both the front and rear ends of the valve cylinder, a double barrier mechanism installed inside the valve cylinder, and a clamping mechanism installed at both the front and rear ends of the valve cylinder.

[0007] The dual barrier mechanism includes two side partitions and two stacked partitions. Both side partitions and stacked partitions are rotatably disposed on both sides inside the valve cylinder. A screw is rotatably disposed inside the valve cylinder. One end of the screw is fixedly connected to the inside of the controller. Movable sleeves are fitted on both sides of the screw. Sealing gaskets are fixedly disposed at both ends of the inner wall of the valve cylinder.

[0008] The above technical solution increases the sealing strength of the valve cylinder against the spread of fire and dense smoke through the double barrier mechanism, causing the fire source to stop at the ignition point so as to quickly extinguish the fire. By moving and rotating the double side baffles and stacked baffles, the valve cylinder can operate normally between ventilation and barrier while isolating and protecting the control system, providing protection when the valve cylinder is attacked by fire on both sides at the same time, thereby improving the barrier performance of the valve.

[0009] Furthermore, the clamping mechanism includes a rotating plate and a clamping plate, and there are multiple rotating plates and clamping plates. The multiple rotating plates are rotatably disposed inside the corresponding rotating grooves, and the multiple clamping plates are slidably disposed at the front end of the corresponding rotating plate. Movable rods are fixedly disposed on both sides of the rear end of the multiple clamping plates and near their upper ends.

[0010] The above technical solution allows for a more stable installation on the ventilation duct via a clamping mechanism, further improving the barrier performance of the valve cylinder and preventing loosening of the bolts between the valve cylinder and the ventilation duct, which could allow the fire to directly pass over the valve cylinder and increase its intensity. The rotating clamping plate can be placed on the ventilation duct and valve cylinder whether the bolts are fixed or not, providing convenience for the stable installation of the ventilation duct and valve cylinder.

[0011] Furthermore, fixed sleeve seats are fixedly provided at both ends of the two movable sleeves, and rotating plate seats are fixedly provided on one side of the rear end of the two fixed sleeve seats. A connecting rotating handle is rotatably provided between the corresponding two fixed sleeve seats and rotating plate seats.

[0012] The above technical solution allows for the offset of the angle and position of the front plate of the side partition and the stacked partition by means of a fixed sleeve, a rotating plate seat, and a connecting rotating handle.

[0013] Furthermore, a vertical rotating seat is fixedly provided on one side of the rear end of each of the two stacked partitions, a vertical fixed seat is fixedly provided on the inner side of each of the four sealing gaskets, and a vertical movable plate is rotatably provided inside each of the four vertical rotating seats.

[0014] The above technical solution allows for the offset of the angle and position of the rear plate of the side partition and the stacked partition by using the vertical rotating seat and the vertical fixed seat.

[0015] Furthermore, each of the four vertical fixed seats has a vertical extension cylinder rotatably installed inside, and each of the four vertical movable plates has an extension plate fixedly installed on one side, with the four extension plates sliding inside their respective vertical extension cylinders.

[0016] Through the above technical solution, by sliding the extension plates inside the corresponding vertical extension cylinders, the angles and positions of the side partitions and stacked partitions can be smoothly opened and closed, making them parallel and perpendicular to the ventilation openings.

[0017] Furthermore, each of the four vertical extension cylinders has a sliding groove at both the front and rear ends, and each of the four extension plates has a slider fixedly installed at both the front and rear ends and on one side thereof, with the two corresponding sliders sliding inside the corresponding sliding grooves respectively.

[0018] The above technical solution allows the sliders to slide within their respective grooves, preventing the extension plates from detaching from the vertical extension cylinder and thus affecting the opening and closing operations of the side partitions and stacked partitions.

[0019] Furthermore, the valve cylinder has rotating grooves at both its front and rear ends and on its outer side;

[0020] With the above technical solution, the clamping plate can be rotated by the rotating grooves opened at both ends of the valve cylinder and on the outer side, which provides a convenient clamping method for the ventilation pipe and the valve cylinder before or after bolt fixing.

[0021] Furthermore, the rear ends of the plurality of movable rods all pass through the corresponding rotating plate and are fixedly provided with limit plates, and the front ends of the plurality of limit plates and the rear ends of the rotating plate and located on the corresponding movable rods are all sleeved and connected with springs;

[0022] The above technical solution allows the clamping plate to further stabilize the ventilation pipe and valve cylinder after bolt installation by means of the moving rod, limiting plate and spring.

[0023] This utility model has the following beneficial effects:

[0024] 1. This utility model proposes a high-barrier fire damper. The fire damper can increase the sealing strength of the valve cylinder to block the spread of fire and dense smoke through a double barrier mechanism, so as to stop the fire source at the ignition point and facilitate the rapid extinguishing of the fire. By moving and rotating the double side baffles and stacked baffles, the valve cylinder can operate normally between ventilation and barrier while isolating and protecting the control system, providing protection when the valve cylinder is attacked by fire on both sides at the same time, thereby improving the barrier performance of the valve.

[0025] 2. The present invention proposes a high-barrier fire damper, which, through a clamping mechanism, makes it more stable when installed on a ventilation duct, further improving the barrier performance of the valve cylinder and preventing the bolts between the valve cylinder and the ventilation duct from loosening, which would allow the fire to directly pass through the valve cylinder and increase the fire intensity. The clamping plate, which can be rotated, can be placed on the ventilation duct and valve cylinder whether the bolts are fixed or not, providing convenience for the stable installation of the ventilation duct and valve cylinder.

[0026] 3. The present invention proposes a high-barrier fire damper, which adopts a dual-barrier design to protect the control system from the attack of fire from both sides, and to increase the strength of the valve cylinder in blocking the spread of fire and dense smoke, so as to control the spread of fire. At the same time, it can enhance the stability of the valve cylinder installation and further improve the barrier performance of the valve cylinder. Attached Figure Description

[0027] Figure 1 This is a perspective view of a high-barrier fire damper proposed in this utility model;

[0028] Figure 2 This is a schematic diagram of the valve cylinder structure of a high-barrier fireproof valve proposed in this utility model;

[0029] Figure 3 This is a cross-sectional view of the side partition and stacked partition of a high-barrier fire damper proposed in this utility model;

[0030] Figure 4 This is a perspective view of the side partition and stacked partition of a high-barrier fire damper proposed in this utility model;

[0031] Figure 5 This is a schematic diagram of the vertical plate and extension plate structure of a high-barrier fire damper proposed in this utility model.

[0032] Figure 6 This is a schematic diagram of the clamping plate structure of a high-barrier fire damper proposed in this utility model;

[0033] Figure 7 for Figure 4 Enlarged view of point A in the middle.

[0034] Explanation of reference numerals in the attached figures:

[0035] 1. Valve cylinder; 2. Controller; 3. Mounting hole; 4. Double barrier mechanism; 401. Side partition; 402. Stacked partition; 403. Screw; 404. Movable sleeve; 405. Fixed sleeve; 406. Rotating plate seat; 407. Connecting rotating handle; 408. Vertical rotating seat; 409. Vertical fixed seat; 410. Vertical movable plate; 411. Extension plate; 412. Vertical extension cylinder; 413. Slide groove; 414. Slider; 415. Sealing gasket; 5. Clamping mechanism; 501. Rotating plate; 502. Clamping plate; 503. Rotating groove; 504. Moving rod; 505. Limiting plate; 506. Spring. Detailed Implementation

[0036] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of specific embodiments. Obviously, the described specific embodiments are only a part of the specific embodiments of the present invention, and not all of them. Based on the specific embodiments of the present invention, all other specific embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0037] Reference Figure 1-5 7. This utility model provides a specific embodiment: a high-barrier fireproof valve, including a valve cylinder 1, a controller 2 fixedly installed on the outside of the valve cylinder 1, mounting holes 3 opened at the four corners of the front and rear ends of the valve cylinder 1, a double barrier mechanism 4 installed inside the valve cylinder 1, and a clamping mechanism 5 installed at the front and rear ends of the valve cylinder 1.

[0038] The double-barrier mechanism 4 includes two side partitions 401 and two stacked partitions 402. Both side partitions 401 and stacked partitions 402 are rotatably mounted on both sides inside the valve cylinder 1. A screw 403 is rotatably mounted inside the valve cylinder 1, with one end of the screw 403 fixedly connected to the controller 2. Movable sleeves 404 are fitted on both sides of the screw 403. Sealing gaskets 415 are fixedly mounted at both ends of the inner wall of the valve cylinder 1. The double-barrier mechanism 4 increases the sealing strength of the valve cylinder 1 against the spread of fire and dense smoke, causing the fire source to stop at its ignition point, thus facilitating rapid extinguishing of the fire. This is achieved by moving and rotating the double-side partitions 401 and stacked partitions 402. The partition 401 and the stacked partition 402 enable the valve cylinder 1 to operate normally between ventilation and isolation while simultaneously isolating and protecting the control system. This provides protection when the valve cylinder 1 is attacked by fire from both sides, thereby improving the isolation performance of the valve 1. Fixed sleeve seats 405 are fixedly installed at both ends of the two movable sleeves 404. Rotating plate seats 406 are fixedly installed on one side of the rear end of each of the two fixed sleeve seats 405. A connecting rotating handle 407 is rotatably installed between the corresponding two fixed sleeve seats 405 and rotating plate seats 406. The fixed sleeve seats 405, rotating plate seats 406, and connecting rotating handle 407 allow for adjustment of the front plate angle and position of the side partition 401 and the stacked partition 402. The position is offset. A vertical rotating seat 408 is fixedly installed on one side of the rear end of each of the two stacked partitions 402. A vertical fixing seat 409 is fixedly installed on the inner side of each of the four sealing gaskets 415. A vertical movable plate 410 is rotatably installed inside each of the four vertical rotating seats 408. The angle and position of the rear plates of the side partitions 401 and the stacked partitions 402 can be offset by the vertical rotating seats 408 and the vertical fixing seats 409. A vertical extension cylinder 412 is rotatably installed inside each of the four vertical fixing seats 409. An extension plate 411 is fixedly installed on one side of each of the four vertical movable plates 410. The four extension plates 411 slide inside their respective vertical extension cylinders 412. Plates 411 slide inside their respective vertical extension cylinders 412, allowing the side partitions 401 and stacked partitions 402 to smoothly unfold and close, making them parallel and perpendicular to the ventilation openings. Slide grooves 413 are provided at both the front and rear ends of the four vertical extension cylinders 412, and sliders 414 are fixedly provided at both the front and rear ends of the four extension plates 411 and on one side of them. The two corresponding sliders 414 slide inside their respective slide grooves 413. By allowing the sliders 414 to slide inside their respective slide grooves 413, the extension plates 411 are prevented from detaching from the vertical extension cylinders 412, thereby affecting the unfolding and closing operations of the side partitions 401 and stacked partitions 402.

[0039] Reference Figure 1 , 2The clamping mechanism 5 includes a rotating plate 501 and a clamping plate 502, with multiple rotating plates 501 and clamping plates 502. Multiple rotating plates 501 are rotatably mounted inside corresponding rotating slots 503, and multiple clamping plates 502 are slidably mounted at the front ends of corresponding rotating plates 501. Movable rods 504 are fixedly mounted on both sides of the rear end of each clamping plate 502 and near its upper end. The clamping mechanism 5 ensures greater stability when installed on the ventilation duct, further improving the barrier performance of the valve cylinder 1 and preventing loosening of the bolts between the valve cylinder 1 and the ventilation duct, which could allow fire to directly pass through the valve cylinder 1 and increase its intensity. The rotatably mounted clamping plates 502 can be positioned to hold the valve cylinder 1 in place whether the bolts are fastened to the ventilation duct or the valve cylinder 1. To facilitate the secure installation of the ventilation duct and valve cylinder 1, rotating grooves 503 are provided at both ends of the valve cylinder 1 on the outer side. These grooves allow the clamping plate 502 to rotate, providing convenient clamping for the ventilation duct and valve cylinder 1 before or after bolt fixing. The rear ends of multiple moving rods 504 pass through the corresponding rotating plates 501 and are fixedly mounted with limiting plates 505. Springs 506 are sleeved and connected to the front ends of the multiple limiting plates 505 and the rear ends of the rotating plates 501 on the corresponding moving rods 504. Through the moving rods 504, the limiting plates 505, and the springs 506, the clamping plate 502 can further secure the ventilation duct and valve cylinder 1 after bolt installation with maximum clamping force.

[0040] Working principle: When using this high-barrier fire damper, first install the valve cylinder 1 and the ventilation duct according to existing technology. Then pull and rotate the clamping plate 502 so that it is positioned on one side of the ventilation duct. Then release the clamping plate 502. At this time, the clamping plate 502 is pressed tightly against the ventilation duct by the reaction force of the spring 506, further securing the installation between the valve cylinder 1 and the ventilation duct and preventing the bolts from loosening due to prolonged wear. Subsequently, when a fire occurs, the controller 2, activated by the temperature sensor, causes the screw 403 to rotate. The side partition 401 and the stacked partition 402 are then subjected to relative movement and rotation by the movable sleeve 404, the fixed sleeve 405, the rotating plate seat 406, the connecting rotating handle 407, the vertical rotating seat 408, the vertical fixed seat 409, the vertical movable plate 410, the extension plate 411, and the vertical extension cylinder 412, causing the corresponding side partition 401 and the stacked partition 402 to engage, thereby blocking the fire from passing through the ventilation pipe, so as to control the fire, facilitate the rapid extinguishing of the fire, and prolong the evacuation of the affected personnel.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-barrier fire damper, comprising a valve cylinder (1), characterized in that: A controller (2) is fixedly installed on the outside of the valve cylinder (1). Mounting holes (3) are opened at the four corners of the front and rear ends of the valve cylinder (1). A double barrier mechanism (4) is installed inside the valve cylinder (1). A clamping mechanism (5) is installed at both the front and rear ends of the valve cylinder (1). The dual barrier mechanism (4) includes a side partition (401) and a stacked partition (402). There are two side partitions (401) and two stacked partitions (402). The two side partitions (401) and the stacked partitions (402) are rotatably disposed on both sides inside the valve cylinder (1). A screw (403) is rotatably disposed inside the valve cylinder (1). One end of the screw (403) is fixedly connected to the inside of the controller (2). Movable sleeves (404) are sleeved on both sides of the screw (403). Sealing gaskets (415) are fixedly disposed at both ends of the inner wall of the valve cylinder (1).

2. The high-barrier fire damper according to claim 1, characterized in that: The clamping mechanism (5) includes a rotating plate (501) and a clamping plate (502). There are multiple rotating plates (501) and clamping plates (502). The multiple rotating plates (501) are rotatably disposed inside the corresponding rotating grooves (503). The multiple clamping plates (502) are slidably disposed at the front end of the corresponding rotating plate (501). Movable rods (504) are fixedly disposed on both sides of the rear end of the multiple clamping plates (502) and near their upper ends.

3. The high-barrier fire damper according to claim 1, characterized in that: Both of the two movable sleeves (404) are fixedly provided with fixed sleeve seats (405) at both ends. Both of the two fixed sleeve seats (405) are fixedly provided with rotating plate seats (406) on one side of the rear end. A connecting rotating handle (407) is rotatably provided between the two fixed sleeve seats (405) and the rotating plate seats (406).

4. A high-barrier fire damper according to claim 1, characterized in that: Each of the two stacked partitions (402) has a vertical rotating seat (408) fixedly installed on one side of its rear end. Each of the four sealing gaskets (415) has a vertical fixing seat (409) fixedly installed on its inner side. Each of the four vertical rotating seats (408) has a vertical movable plate (410) rotatably installed inside its interior.

5. A high-barrier fire damper according to claim 4, characterized in that: Each of the four vertical fixed bases (409) has a vertical extension cylinder (412) rotatably installed inside, and each of the four vertical movable plates (410) has an extension plate (411) fixedly installed on one side. The four extension plates (411) slide inside the corresponding vertical extension cylinder (412).

6. A high-barrier fire damper according to claim 5, characterized in that: The four vertical extension cylinders (412) are provided with grooves (413) at both ends. The four extension plates (411) are fixedly provided with sliders (414) at both ends and on one side. The two corresponding sliders (414) slide inside the corresponding grooves (413).

7. A high-barrier fire damper according to claim 2, characterized in that: The valve cylinder (1) has rotating grooves (503) at both the front and rear ends and on the outer side.

8. A high-barrier fire damper according to claim 2, characterized in that: The rear ends of the multiple moving rods (504) all pass through the corresponding rotating plate (501) and are fixedly provided with a limiting plate (505). The front ends of the multiple limiting plates (505) and the rear ends of the rotating plate (501) and located on the corresponding moving rods (504) are all sleeved and connected with springs (506).

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