Axial-flow type fire-fighting smoke exhaust fan
By designing a dustproof mechanism and a disassembly mechanism in the axial flow fire exhaust fan, the dustproof screen can be quickly disassembled and cleaned, solving the problem of the difficulty in disassembling the dustproof screen in traditional fans, and improving the ventilation volume and smoke exhaust efficiency of the fan.
Patent Information
- Application Number
- CN202520373448.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-05
- Publication Date
- 2026-01-27
- Estimated Expiration
- 2035-03-05
AI Technical Summary
The dust screen of traditional axial flow fire exhaust fans is difficult to disassemble and clean quickly, resulting in a reduction in the fan's ventilation volume and smoke exhaust efficiency.
A dustproof mechanism and a disassembly mechanism were designed, including components such as a dustproof frame, a dustproof net, a movable block, a spring, a T-shaped cylinder, and a gear rack. Through the elastic support and the cooperation of the gear rack, the dustproof net can be quickly disassembled and cleaned.
It enables quick disassembly and cleaning of the dust filter, ensuring the ventilation volume and smoke extraction efficiency of the fan, and solving the problem of fan performance degradation caused by dust filter blockage.
Smart Images
Figure CN223839349U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire smoke exhaust fan technology, specifically an axial flow fire smoke exhaust fan. Background Technology
[0002] Axial flow fire exhaust fan is a ventilation device specifically designed for fire exhaust systems. It mainly consists of an impeller, casing, and motor. Relying on the rotation of the impeller to drive air axially, it features a large air volume and relatively low air pressure. It can quickly and effectively exhaust smoke and toxic gases in the event of a fire, providing clear visibility and a safe air environment for personnel evacuation and fire rescue, ensuring the safety of people inside buildings. It is generally widely used in fire exhaust systems in high-rise buildings, underground garages, shopping malls, subways, and other places with dense populations or large spaces.
[0003] In traditional axial flow fire exhaust fans, dust control has always been a challenging problem. Since the fans are often in complex environments, such as underground parking garages filled with car exhaust particles and shopping malls with a lot of construction dust and daily dust, this dust can easily adhere to the inside of the fan. In the past, the dust screen of the fan was fixed in a simple way and was difficult to disassemble. When the dust screen was heavily dusty, it was difficult to quickly remove and clean it. Once the dust screen was blocked, it not only affected the ventilation volume of the fan, but also caused a significant reduction in smoke exhaust efficiency. Therefore, it is necessary to design an axial flow fire exhaust fan that allows for easy removal of the dust screen. Utility Model Content
[0004] The purpose of this utility model is to provide an axial flow fire-fighting smoke exhaust fan to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an axial flow fire smoke exhaust fan, including a fan device, a dustproof mechanism fixedly connected to the left side of the fan device, and a disassembly and assembly mechanism fixedly connected to the top of the dustproof mechanism;
[0006] The dustproof mechanism includes a mounting plate, which is fixedly connected to the left end of the fan equipment. A dustproof frame is provided inside the mounting plate, and a dustproof net is fixedly connected inside the dustproof frame. Base blocks are fixedly connected to the front and rear ends of the mounting plate, and support blocks are fixedly connected to the front and rear ends of the dustproof frame. A first spring is fixedly connected to the top of the support block, and a movable block is fixedly connected to the top of the first spring. A vertical rod is fixedly connected inside the support block, and a T-shaped cylinder is slidably connected to the upper surface of the vertical rod.
[0007] Preferably, the mounting plate has a slot inside, and the surface of the dustproof frame is slidably connected to the inside of the slot, so that the dustproof frame can move inside the slot.
[0008] Preferably, the mounting plate has slots on its front and rear sides, and the surface of the movable block is slidably connected to the inside of the slots.
[0009] Preferably, a sliding hole is provided inside the movable block, and the surface of the vertical rod is slidably connected to the sliding hole, so as to facilitate the movement of the vertical rod within the sliding hole.
[0010] Preferably, the disassembly and assembly mechanism includes a horizontal seat, which is fixedly connected to the top left side of the mounting plate. Second springs are fixedly connected to the front and rear ends of the horizontal seat, respectively. A T-shaped block is fixedly connected to one end of each second spring. A T-shaped rod is fixedly connected inside the T-shaped block, with one end of the T-shaped rod fixedly connected to one end of the second spring. An L-shaped clamping block is fixedly connected to the top of the T-shaped block, and a locking rod is fixedly connected to one end of the L-shaped clamping block. A gear is rotatably connected to the surface of the horizontal seat, and a perforated strip is fixedly connected to the surface of the gear. A fixed strip is fixedly connected to the top of the T-shaped cylinder, and the locking rod is located inside the perforated strip.
[0011] Preferably, a slot is formed on the inner side of the fixing strip, and the surface of the L-shaped clamping block engages with the inside of the slot.
[0012] Preferably, a guide groove is formed inside the horizontal seat, and the surface of the T-shaped block is slidably connected to the inside of the guide groove, so as to facilitate the sliding of the T-shaped block inside the guide groove.
[0013] Compared with the prior art, this utility model provides an axial flow fire-fighting smoke exhaust fan, which has the following beneficial effects:
[0014] 1. This axial flow fire-fighting smoke exhaust fan, through the dustproof mechanism, the T-shaped cylinder, under the elastic recovery support of the first spring, drives the movable block to slide upward on the surface of the vertical rod. This causes the T-shaped cylinder and the fixed bar to disengage from the limit on the surface of the vertical rod when sliding upward, and correspondingly drives the support block to slide upward and the dustproof frame to move upward. This allows the dustproof net to be quickly disassembled and cleaned, ensuring the ventilation volume and smoke exhaust efficiency of the fan.
[0015] 2. This axial flow fire exhaust fan uses a dustproof net to block dust through a disassembly and assembly mechanism. When the dustproof net needs to be cleaned, one of the hollow strips is turned, which drives the gear rack to rotate, thereby driving the two hollow strips to rotate simultaneously. Correspondingly, the clamp rod moves under the limitation of the T-shaped block inside the horizontal seat, so that the clamp rod can be removed from the surface of the fixed strip, and the dustproof net can be easily disassembled and cleaned. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0017] Figure 1 This is a perspective view of the overall structure of this utility model;
[0018] Figure 2 This is a three-dimensional exploded view of the dustproof mechanism of this utility model;
[0019] Figure 3 This is a perspective view of the disassembly and assembly mechanism of this utility model;
[0020] Figure 4 This is a three-dimensional disassembled view of the disassembly and assembly mechanism of this utility model;
[0021] Figure 5 This is a perspective view of the fan equipment of this utility model.
[0022] In the diagram: 1. Fan equipment; 2. Dustproof mechanism; 21. Mounting plate; 22. Dustproof frame; 23. Dustproof net; 24. Base block; 25. Support block; 26. Movable block; 27. First spring; 28. Vertical rod; 29. T-shaped cylinder; 3. Disassembly and assembly mechanism; 31. Horizontal seat; 32. Second spring; 33. T-shaped block; 34. T-shaped rod; 35. L-shaped clamping block; 36. Clamping rod; 37. Gear rack; 38. Hollowed-out strip; 39. Fixed strip. Detailed Implementation
[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0024] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0025] This utility model provides the following technical solution:
[0026] Example 1
[0027] Combination Figures 2 to 5 An axial flow fire smoke exhaust fan includes a fan device 1, a dustproof mechanism 2 fixedly connected to the left side of the fan device 1, and a disassembly mechanism 3 fixedly connected to the top of the dustproof mechanism 2.
[0028] The dustproof mechanism 2 includes a mounting plate 21, which is fixedly connected to the left end of the fan equipment 1. A dustproof frame 22 is provided inside the mounting plate 21, and a dustproof net 23 is fixedly connected inside the dustproof frame 22. Base blocks 24 are fixedly connected to the front and rear ends of the mounting plate 21, and support blocks 25 are fixedly connected to the front and rear ends of the dustproof frame 22. A first spring 27 is fixedly connected to the top of the support block 25, and a movable block 26 is fixedly connected to the top of the first spring 27. A vertical rod 28 is fixedly connected inside the support block 25, and a T-shaped cylinder 29 is slidably connected to the upper surface of the vertical rod 28. A slot is opened inside the mounting plate 21, and the surface of the dustproof frame 22 is slidably connected to the inside of the slot. Grooves are opened on the front and rear sides of the mounting plate 21, and the surface of the movable block 26 is slidably connected to the inside of the groove.
[0029] Furthermore, a sliding hole is opened inside the movable block 26, and the surface of the vertical rod 28 is slidably connected to the sliding hole. Under the elastic recovery support of the first spring 27, the T-shaped cylinder 29 drives the movable block 26 to slide upward on the surface of the vertical rod 28, thereby causing the T-shaped cylinder 29 and the fixed bar 39 to disengage from the limit on the surface of the vertical rod 28 when sliding upward, and correspondingly driving the support block 25 to slide upward and driving the dustproof frame 22 to move upward, so that the dustproof net 23 can be quickly disassembled and cleaned accordingly.
[0030] Example 2
[0031] See Figure 1-5 Furthermore, based on Embodiment 1, the disassembly and assembly mechanism 3 includes a horizontal seat 31, which is fixedly connected to the top left side of the mounting plate 21. The front and rear ends of the horizontal seat 31 are respectively fixedly connected to a second spring 32. One end of the second spring 32 is fixedly connected to a T-shaped block 33. A T-shaped rod 34 is fixedly connected inside the T-shaped block 33. One end of the T-shaped rod 34 is fixedly connected to one end of the second spring 32. An L-shaped clamping block 35 is fixedly connected to the top of the T-shaped block 33. A locking rod 36 is fixedly connected to one end of the L-shaped clamping block 35. A gear rack 37 is rotatably connected to the surface of the horizontal seat 31. A hollow strip 38 is fixedly connected to the surface of the gear rack 37. A fixed strip 39 is fixedly connected to the top of the T-shaped cylinder 29. The surface of the locking rod 36 is located inside the hollow strip 38. A slot is opened on the inner side of the fixed strip 39. The surface of the L-shaped clamping block 35 is engaged with the inside of the slot.
[0032] Furthermore, a guide groove is opened inside the horizontal seat 31, and the surface of the T-shaped block 33 is slidably connected to the inside of the guide groove. The dustproof net 23 is used to block dust. When the dustproof net 23 needs to be cleaned, one of the hollow strips 38 is turned to drive the gear rack 37 to rotate, which in turn drives the two hollow strips 38 to rotate at the same time. Correspondingly, the locking rod 36 is moved by the T-shaped block 33 under the limit inside the horizontal seat 31, so that the locking rod 36 can be removed from the surface of the fixed strip 39, and the dustproof net 23 can be easily disassembled and cleaned.
[0033] In actual operation, when this device is used, when the axial flow fire exhaust fan is in use, the external air mixed with dust adheres to the dustproof net 23, thus using the dustproof net 23 to block the dust. When it is necessary to clean the dustproof net 23, one of the hollow strips 38 is turned to drive the gear rack 37 to rotate, which in turn drives the two hollow strips 38 to rotate at the same time. Correspondingly, the clamping rod 36 is moved by the T-shaped block 33 under the limit inside the horizontal seat 31, so that the clamping rod 36 can be removed from the surface of the fixed strip 39, thus making it easy to disassemble and clean the dustproof net 23.
[0034] Furthermore, when the fixed bar 39 disengages from the limit of the latch 36, the fixed bar 39, through the connected T-shaped cylinder 29, drives the movable block 26 to slide upward on the surface of the vertical rod 28 under the elastic recovery support of the first spring 27. This causes the T-shaped cylinder 29 and the fixed bar 39 to disengage from the limit of the vertical rod 28 surface as they slide upward, and correspondingly causes the support block 25 to slide upward and the dustproof frame 22 to move upward. This allows the dustproof net 23 to be quickly disassembled and cleaned accordingly.
[0035] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
Claims
1. An axial flow fire-fighting smoke exhaust fan, comprising a fan unit (1), characterized in that: The fan equipment (1) is fixedly connected to a dustproof mechanism (2) on the left side, and the dustproof mechanism (2) is fixedly connected to a disassembly and assembly mechanism (3) on the top. The dustproof mechanism (2) includes a mounting plate (21), which is fixedly connected to the left end of the fan equipment (1). A dustproof frame (22) is provided inside the mounting plate (21), and a dustproof net (23) is fixedly connected inside the dustproof frame (22). A bottom block (24) is fixedly connected to the front and rear ends of the mounting plate (21). A support block (25) is fixedly connected to the front and rear ends of the dustproof frame (22). A first spring (27) is fixedly connected to the top of the support block (25), and a movable block (26) is fixedly connected to the top of the first spring (27). A vertical rod (28) is fixedly connected inside the support block (25), and a T-shaped cylinder (29) is slidably connected to the upper surface of the vertical rod (28).
2. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The mounting plate (21) has a slot inside, and the surface of the dustproof frame (22) is slidably connected to the inside of the slot.
3. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The mounting plate (21) has slots on its front and rear sides, and the surface of the movable block (26) is slidably connected to the inside of the slots.
4. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The movable block (26) has a sliding hole inside, and the surface of the vertical rod (28) is slidably connected to the sliding hole.
5. An axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The disassembly and assembly mechanism (3) includes a horizontal seat (31), which is fixedly connected to the top left side of the mounting plate (21). The front and rear ends of the horizontal seat (31) are respectively fixedly connected to a second spring (32). One end of the second spring (32) is fixedly connected to a T-shaped block (33). A T-shaped rod (34) is fixedly connected inside the T-shaped block (33). One end of the T-shaped rod (34) is fixedly connected to one end of the second spring (32). An L-shaped clamp (35) is fixedly connected to the top of the T-shaped block (33). A locking rod (36) is fixedly connected to one end of the L-shaped clamp (35). A gear rack (37) is rotatably connected to the surface of the horizontal seat (31). A hollow strip (38) is fixedly connected to the surface of the gear rack (37). A fixed strip (39) is fixedly connected to the top of the T-shaped cylinder (29). The surface of the locking rod (36) is located inside the hollow strip (38).
6. An axial flow fire-fighting smoke exhaust fan according to claim 5, characterized in that: A slot is provided on the inner side of the fixed strip (39), and the surface of the L-shaped clamp (35) engages with the inside of the slot.
7. An axial flow fire-fighting smoke exhaust fan according to claim 5, characterized in that: The horizontal seat (31) has a guide groove inside, and the surface of the T-shaped block (33) is slidably connected to the inside of the guide groove.