Magnetic quick fireproof valve

Abstract

The utility model discloses a kind of magnetic suction type quick fire damper, belong to fire damper field, including frame, two air inlets are set in frame upper wall;Two locking parts, respectively set in the cavity top wall of frame;Locking part includes the sleeve frame of setting in the cavity top wall of frame;Locking plate of one end slidable insertion sleeve frame, locking plate other end is J type;Memory metal is set in the inside of sleeve frame;Spring one is set in the inside of sleeve frame and two ends are respectively connected with the inner wall of sleeve frame and locking plate;The utility model's magnetic suction type quick fire damper, by the quick response of memory metal, the rapid closure of fire has been realized, response speed is fast;Simple structure, rely on mechanical component action, high reliability, not affected by power;Locking part and the cooperation design of closure, operation process simplifies;The detachable design of sleeve frame is convenient for later maintenance and the replacement of memory metal;Satisfy the demand of quick cut-off ventilation path when fire, improve fireproof reliability and maintenance convenience.

Description

Technical Field

[0001] This utility model belongs to the field of fire dampers, specifically relating to a magnetic fast fire damper. Background Technology

[0002] In ventilation systems, fire dampers are key devices for preventing the spread of fire.

[0003] Traditional fire dampers mostly use fusible alloys or motor-driven closing methods, which have drawbacks such as slow response speed, complex structure, and high maintenance costs. Fusible alloy fire dampers are limited by the melting point of the fusible alloy, resulting in low operating accuracy and reliability. Motor-driven fire dampers rely on electricity and may fail when the power is cut off during a fire. To solve the above problems, a magnetic fast fire damper is proposed. Utility Model Content

[0004] In view of one or more of the above-mentioned defects or improvement needs of the existing technology, this utility model provides a magnetic fast fire damper, which aims to solve the problems of slow response, complex structure and insufficient reliability of traditional fire dampers, and realize the fire protection function of fast response, simple structure and stable and reliable fire protection, thereby improving the fire protection effect during a fire.

[0005] To achieve the above objectives, this utility model provides a magnetic fast fire damper, including a frame with two air inlets.

[0006] Two locking components are respectively installed on the top wall of the inner cavity of the frame;

[0007] The locking mechanism includes a sleeve set on the top wall of the inner cavity of the frame; a locking plate that can be slidably inserted into the sleeve at one end, and the other end of the locking plate is J-shaped; a memory metal set inside the sleeve; and a spring set inside the sleeve and connected at both ends to the inner wall of the sleeve and the locking plate, respectively.

[0008] Two closures are respectively set inside the frame and fastened to the locking plate;

[0009] The closure is used to open and close the air inlet, and the locking part is used to fix the two closures in the open state.

[0010] Furthermore, the closure includes two fixing frames disposed inside the frame; a support rod disposed between the two fixing frames; a closure plate rotatably sleeved on the outer wall of the support rod at one end; a spring disposed between the support rod and the closure plate and connected at both ends to the outer wall of the support rod and the closure plate respectively; and a bolt disposed on the top of the closure plate and engaged with a locking plate.

[0011] Furthermore, fireproof sealing rings are installed inside the frame and on the outer wall of the enclosed panel.

[0012] Furthermore, shape memory metals exhibit a spiral-shaped structure.

[0013] Furthermore, a limiting groove is provided on the inner wall of the sleeve, and a limiting block that can slide in the limiting groove is provided on the outer wall of the locking plate.

[0014] Furthermore, the locking end of the locking plate has a bevel for guiding, and the bolt is cylindrical.

[0015] Furthermore, the frame includes a bottom shell and a cover plate, which are detachably connected by several fasteners.

[0016] Furthermore, the fastener includes two connecting plates respectively disposed on the outer walls of the bottom shell and the cover plate; and a fixing screw that can slide through one of the connecting plates and be threadedly connected to the other connecting plate.

[0017] In summary, the beneficial effects of the above-described technical solutions conceived by this utility model compared with the prior art include:

[0018] This utility model of a magnetic fast-acting fire damper achieves rapid closure during a fire through the rapid response of shape memory metal, with a fast response speed; simple structure, relying on mechanical parts for operation, high reliability, and unaffected by electricity; the cooperative design of the locking and closing parts simplifies the operation process; the detachable design of the bracket facilitates later maintenance and replacement of shape memory metal; it meets the need to quickly cut off the ventilation path during a fire, improving fire protection reliability and maintenance convenience. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the top cross-sectional structure of this utility model;

[0021] Figure 3 This utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0022] Figure 4 This is a schematic diagram of the disassembled frame structure of this utility model.

[0023] In all the accompanying drawings, the same reference numerals denote the same technical features, specifically: 1. Frame; 2. Locking element; 21. Sleeve; 211. Bottom shell; 212. Cover plate; 213. Fixing element; 2131. Connecting plate; 2132. Fixing screw; 22. Locking plate; 23. Shape memory metal; 24. Spring one; 3. Closure element; 31. Fixing bracket; 32. Support rod; 33. Closure plate; 34. Spring two; 35. Bolt; 4. Fireproof sealing ring; 5. Limiting groove; 6. Limiting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Please see Figure 1-4 This utility model provides a magnetic fast fire damper, including a frame 1 with two air inlets for ventilation;

[0026] Two locking elements 2 are respectively installed on the top wall of the inner cavity of the frame 1;

[0027] Two closures 3 are respectively set inside the frame 1 and fastened to the locking parts 2;

[0028] The sealing element 3 is used to open and close the air inlet, and the locking element 2 is used to fix the two sealing elements 3 in the open state.

[0029] Specifically, refer to Figure 3-4 The locking component 2 includes a sleeve 21 disposed on the top wall of the inner cavity of the frame 1. The sleeve 21 includes a bottom shell 211 and a cover plate 212. The bottom shell 211 and the cover plate 212 are detachably connected by several fasteners 213, which facilitates the replacement of the shape memory metal 23 for reuse. The fasteners 213 include two connecting plates 2131 respectively disposed on the outer walls of the bottom shell 211 and the cover plate 212. A fixing screw 2132, one end of which can slide through one of the connecting plates 2131 and is threadedly connected to the other connecting plate 2131, enables quick assembly and disassembly of the bottom shell 211 and the cover plate 212. A limiting groove 5 is provided on the inner wall of the sleeve 21 for locking the latch plate 22. The sliding mechanism limits the movement of the locking plate 22, which can be slidably inserted into the sleeve 21 at one end. The other end of the locking plate 22 is J-shaped, and the outer wall is provided with a limiting block 6 that can slide in the limiting groove 5 to ensure the straightness of the sliding of the locking plate 22. The locking end of the locking plate 22 has a bevel for guiding, which facilitates the pusher 35 to push it outward. The memory metal 23 set inside the sleeve 21 has a spiral structure, which unfolds under high temperature to provide greater thrust and push the locking plate 22 to slide. The spring 24 set inside the sleeve 21 and connected at both ends to the inner wall of the sleeve 21 and the locking plate 22 respectively, cooperates with the locking plate 22 to lock the closure 3 when the memory metal 23 is not in motion.

[0030] Specifically, refer to Figure 3The closure 3 includes two fixing brackets 31 set inside the frame 1 to provide mounting support for the support rod 32; the support rod 32 set between the two fixing brackets 31 is the axis of rotation of the closure plate 33; the closure plate 33, which is rotatably sleeved on the outer wall of the support rod 32 at one end, is used to close the air inlet; the spring 34 set between the support rod 32 and the closure plate 33 and connected at both ends to the outer wall of the support rod 32 and the closure plate 33 respectively, provides the closing power for the closure plate 33, and drives the closure plate 33 to rotate and close the air inlet after the locking member 2 is unlocked; the bolt 35 set on the top of the closure plate 33 and fastened to the locking plate 22 is cylindrical, and when the closure plate 33 is unfolded, its arc surface cooperates with the inclined surface of the locking plate 22, and pushes the locking plate 22 outward to complete the locking action, simplifying the operation process.

[0031] Specifically, refer to Figure 1-2 Fireproof sealing rings 4 are provided inside the frame 1 and on the outer wall of the enclosure 33, respectively. When the enclosure 33 closes the air inlet, it enhances the sealing performance and prevents smoke and flames from spreading through the gaps.

[0032] Working principle

[0033] In the air intake state: the sealing plate 33 of the sealing member 3 is in the open state, and the second spring 34 is compressed; the locking plate 22 of the locking member 2 is engaged with the bolt 35 at the top of the sealing plate 33, and the first spring 24 and the memory metal 23 cooperate to keep the locking plate 22 locked. At this time, the air inlet is open and the ventilation system is operating normally; when the sealing plate 33 is unfolded, the arc surface of the bolt 35 cooperates with the inclined surface of the locking plate 22, and pushes the locking plate 22 outward by itself, so that the bolt 35 enters the J-shaped end of the locking plate 22, completing the locking action. No additional operation is required, and the process is simple.

[0034] In case of fire: When a fire occurs and the ambient temperature rises to the trigger temperature of the shape memory metal 23, the spiral shape memory metal 23 unfolds due to heat, generating a large thrust, which pushes the locking plate 22 to slide along the limiting groove 5 of the sleeve 21, compressing the first spring 24, causing the J-shaped end of the locking plate 22 to separate from the bolt 35, thus releasing the locking of the sealing plate 33; at this time, under the elastic restoring force of the second spring 34, the sealing plate 33 rotates around the support rod 32, quickly sealing the air inlet; the fireproof sealing ring 4 on the frame 1 and the sealing plate 33 enhances the sealing performance, effectively preventing smoke and flames from spreading through the air inlet;

[0035] During later maintenance: If it is necessary to replace the memory metal 23, the cover plate 212 can be removed through the fixing screw 2132 of the fastener 213, the old memory metal 23 can be taken out and replaced with a new one, and then the frame 21 can be reassembled to achieve reuse and reduce maintenance costs.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A magnetic fast-acting fire damper, characterized in that, Includes frame (1), on which two air inlets are opened; Two locking elements (2) are respectively installed on the top wall of the inner cavity of the frame (1); The locking component (2) includes a sleeve (21) disposed on the top wall of the inner cavity of the frame (1); a locking plate (22) that can be slidably inserted into the sleeve (21) at one end, and the other end of the locking plate (22) is J-shaped; a memory metal (23) disposed inside the sleeve (21); and a spring (24) disposed inside the sleeve (21) and connected at both ends to the inner wall of the sleeve (21) and the locking plate (22) respectively. Two closures (3) are respectively set inside the frame (1) and fastened to the locking plate (22); The sealing element (3) is used to open and close the air inlet, and the locking element (2) is used to fix the two sealing elements (3) in the open state.

2. The magnetic fast-acting fire damper according to claim 1, characterized in that, The closure (3) includes two fixing frames (31) set inside the frame (1); a support rod (32) set between the two fixing frames (31); a closure plate (33) with one end rotatably sleeved on the outer wall of the support rod (32); a spring (34) set between the support rod (32) and the closure plate (33) and connected at both ends to the outer wall of the support rod (32) and the closure plate (33) respectively; and a bolt (35) set on the top of the closure plate (33) and fastened to the locking plate (22).

3. The magnetic fast-acting fire damper according to claim 2, characterized in that, Fireproof sealing rings (4) are provided inside the frame (1) and on the outer wall of the enclosed panel (33).

4. The magnetic fast-acting fire damper according to claim 1, characterized in that, Shape memory metal (23) has a spiral structure.

5. The magnetic fast-acting fire damper according to claim 1, characterized in that, The inner wall of the sleeve (21) is provided with a limiting groove (5), and the outer wall of the locking plate (22) is provided with a limiting block (6) that can slide in the limiting groove (5).

6. The magnetic fast-acting fire damper according to claim 3, characterized in that, The latch end of the latch plate (22) has a bevel for guiding, and the bolt (35) is a cylinder.

7. The magnetic fast-acting fire damper according to claim 1, characterized in that, The frame (21) includes a bottom shell (211) and a cover plate (212), which are detachably connected by several fasteners (213).

8. The magnetic fast-acting fire damper according to claim 7, characterized in that, The fastener (213) includes two connecting plates (2131) respectively disposed on the outer walls of the bottom shell (211) and the cover plate (212); and a fixing screw (2132) that can slide through one of the connecting plates (2131) and is threadedly connected to the other connecting plate (2131).

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