Axial flow fire smoke exhaust fan

Abstract

The utility model relates to the technical field of exhaust fan discloses a kind of axial-flow fire-fighting smoke exhaust fan, including box, air outlet flange, open-close fan, air inlet flange, mounting seat, base and fan body, the four corners of the mounting seat upper end surface are all screw rod connection with convenient dismounting mechanism, the convenient dismounting mechanism includes multiple unified parts, the middle part of the unified part one side end surface is fixedly connected with swing frame.The utility model in this paper, the device is by the unified part, swing frame, pivot, clamping strip, locking rod, rotating sleeve, card frame, slide bar, hook block, spring telescopic rod, spigot, fixed screw and the bolt matched with base constitute the convenient dismounting mechanism of being set on mounting seat, can effectively simplify the dismounting operation between mounting seat and base, improve dismounting efficiency, simultaneously with the clamping locking effect of multiple components Ensure that connection is stable, it is convenient for subsequent maintenance and overhaul to fan body.

Description

Technical Field

[0001] This utility model relates to the field of exhaust fan technology, and in particular to an axial flow fire smoke exhaust fan. Background Technology

[0002] Axial flow fire exhaust fan is a special ventilation device used in fire-fighting scenarios. It drives airflow in an axial manner to quickly exhaust smoke and harmful gases generated by fire, thereby ensuring the safety of personnel evacuation and rescue.

[0003] Traditional axial flow fire exhaust fans lack convenient locking and quick adjustment structures during disassembly and assembly. They often require complex fastener operations or multiple alignments to complete the disassembly and assembly, resulting in numerous operation steps, long time consumption, and poor ease of disassembly and assembly.

[0004] Therefore, those skilled in the art have provided an axial flow fire exhaust fan 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 an axial flow fire smoke exhaust fan. This device has a convenient disassembly and assembly mechanism on the mounting base, which consists of an integrated part, a rotating frame, a rotating shaft, a locking strip, a locking rod, a rotating sleeve, a locking frame, a sliding rod, a hook block, a spring telescopic rod, a plug pipe, a fixing screw, and a pin that cooperates with the base. This mechanism can effectively simplify the disassembly and assembly operations between the mounting base and the base, improve the disassembly and assembly efficiency, and ensure a stable connection by means of the locking action of multiple parts, which facilitates the subsequent maintenance and repair of the fan body.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] An axial flow fire-fighting smoke exhaust fan includes a housing, an outlet flange, a hinged fan, an inlet flange, a mounting base, a base, and a fan body. The four corners of the upper surface of the mounting base are each connected with a threaded rod for easy disassembly and assembly.

[0008] The convenient assembly and disassembly mechanism includes multiple integrated parts. A rotating frame is fixedly connected to the middle of one side end face of each integrated part. A rotating shaft is rotatably connected to one end of the rotating frame. Both sides of one side of the outer wall of the rotating shaft are fixedly connected to locking strips. A locking rod is fixedly connected to one side of one side of the outer wall of the rotating shaft. A rotating sleeve is slidably connected to one side of the outer wall of the rotating sleeve. A retaining frame is fixedly connected to one side of the outer wall of the rotating sleeve. A sliding rod is slidably connected to one end of the integrated part. A hook block is fixedly connected to one side of one side of the outer wall of the sliding rod. A spring telescopic rod is fixedly connected to one end of the sliding rod. A insertion tube is fixedly connected to one side of the upper end face of the integrated part. A fixing screw is threadedly connected to one end of one side end face of the integrated part. Pins are fixedly connected to the four corners of the base.

[0009] Through the above technical solution, the device, by setting a convenient disassembly and assembly mechanism on the mounting base, consisting of an integrated part, a rotating frame, a rotating shaft, a locking strip, a locking rod, a rotating sleeve, a locking frame, a sliding rod, a hook block, a spring telescopic rod, a plug pipe, a fixing screw, and a pin that cooperates with the base, can effectively simplify the disassembly and assembly operations between the mounting base and the base, improve the disassembly and assembly efficiency, and at the same time ensure a stable connection by means of the locking action of multiple parts, which facilitates the subsequent maintenance and repair of the fan body.

[0010] Furthermore, an air outlet flange is threadedly connected to the middle of one end face of the housing, and opening and closing fans are provided on both sides of the inner wall of the air outlet flange.

[0011] Through the above technical solutions, the air outlet flange can be easily disassembled and installed to adapt to different air outlet ducts, and the opening and closing fan can flexibly control the opening and closing of the air outlet channel, which not only facilitates the adjustment of the smoke exhaust volume, but also prevents external debris from entering the cabinet when the equipment is stopped.

[0012] Furthermore, an air inlet flange is threadedly connected to the middle of the other end face of the housing, a mounting base is fixedly connected to the bottom surface inside the housing, a base is engaged with the middle of the upper end face of the mounting base, and a fan body is fixedly connected to the upper end of the base.

[0013] Through the above technical solutions, the threaded connection of the air inlet flange facilitates the connection and installation with the air inlet duct, and the snap-fit ​​structure between the mounting base and the base enables the rapid positioning and placement of the fan body, ensuring the stable installation of the fan body while simplifying its disassembly and assembly process inside the housing.

[0014] Furthermore, one end of the card bar passes through one side of the outer wall of the rotating sleeve and forms a sliding connection thereto, and one end of the rotating shaft passes through the middle of one side end face of the integration part and forms a rotatable connection with one end of the rotating frame;

[0015] Through the above technical solution, the locking bar can restrict the relative circumferential rotation of the rotating sleeve and the rotating shaft, enabling them to rotate synchronously. At the same time, it allows the rotating sleeve to slide along the axial direction of the rotating shaft, while the rotating connection between the rotating shaft and the rotating frame provides a flexible rotational basis, ensuring the motion coordination of the convenient assembly and disassembly mechanism.

[0016] Furthermore, one end of the spring telescopic rod is fixedly connected to one end inside the integrated part, and one end of the fixing screw is engaged with one side of one end of the outer wall of the slide rod;

[0017] Through the above technical solution, the spring telescopic rod can apply an elastic force to the slide rod, giving it the ability to reset. The engagement of the fixing screw and the slide rod can lock the position of the slide rod, preventing it from moving due to accidental force during operation, thus balancing the slide rod's movement flexibility and positional stability.

[0018] Furthermore, the hook block is engaged with the outer wall of the card frame, and the length of the card frame is greater than the length of the hook block;

[0019] Through the above technical solution, the engagement of the hook block and the locking frame can realize the linkage between the slide rod and the rotating sleeve. The length of the locking frame is greater than the length of the hook block, which can provide sufficient engagement space for the hook block, ensuring reliable engagement between the two and avoiding disengagement due to excessive relative displacement.

[0020] Furthermore, the protrusion on one end face of the locking rod engages with the middle part of one end face of the insertion tube, and a pin is slidably connected to one side of the inner wall of the insertion tube. The protrusion on one end face of the locking rod also engages with the middle part of one end face of the pin.

[0021] Through the above technical solution, the protrusion of the locking rod can simultaneously clamp the insertion tube and the pin, firmly confining the pin inside the insertion tube, realizing a reliable connection between the pin and the insertion tube, thereby ensuring a stable fixation between the base and the mounting seat, and preventing loosening during equipment operation.

[0022] This utility model has the following beneficial effects:

[0023] 1. The present invention proposes an axial flow fire smoke exhaust fan. This device has a convenient disassembly and assembly mechanism on the mounting base, which consists of an integrated part, a rotating frame, a rotating shaft, a locking strip, a locking rod, a rotating sleeve, a locking frame, a sliding rod, a hook block, a spring telescopic rod, a plug pipe, a fixing screw, and a pin that cooperates with the base. This mechanism can effectively simplify the disassembly and assembly operations between the mounting base and the base, improve the disassembly and assembly efficiency, and ensure a stable connection by means of the locking action of multiple parts, which facilitates the subsequent maintenance and repair of the fan body. Attached Figure Description

[0024] Figure 1 This is an isometric drawing of an axial flow fire-fighting smoke exhaust fan proposed in this utility model;

[0025] Figure 2 This is a second-view isometric drawing of an axial-flow fire-fighting smoke exhaust fan proposed in this utility model;

[0026] Figure 3 This is a schematic diagram of the fan body and mounting base of an axial flow fire smoke exhaust fan proposed in this utility model;

[0027] Figure 4 This is a schematic diagram of a convenient disassembly and assembly mechanism for an axial flow fire-fighting smoke exhaust fan proposed in this utility model;

[0028] Figure 5 Exploded structural diagram of a convenient disassembly and assembly mechanism for an axial flow fire-fighting smoke exhaust fan proposed in this utility model;

[0029] Figure 6This is a schematic diagram of the pin of an axial flow fire exhaust fan proposed in this utility model.

[0030] Explanation of reference numerals in the attached figures:

[0031] 1. Housing; 2. Exhaust flange; 3. Opening fan; 4. Inlet flange; 5. Mounting base; 6. Easy disassembly and assembly mechanism; 61. Integration unit; 62. Rotating frame; 63. Rotating shaft; 64. Locking strip; 65. Locking rod; 66. Rotating sleeve; 67. Locking frame; 68. Slide rod; 69. Hook block; 610. Spring telescopic rod; 611. Insert pipe; 612. Fixing screw; 613. Pin; 7. Base; 8. Fan body. Detailed Implementation

[0032] 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.

[0033] Reference Figure 1-3 This utility model provides a specific implementation method:

[0034] An axial flow fire-fighting smoke exhaust fan includes a housing 1, an outlet flange 2, a hinged fan 3, an inlet flange 4, a mounting base 5, a base 7, and a fan body 8. Each of the four corners of the upper surface of the mounting base 5 is threaded with a convenient disassembly / reassembly mechanism 6. The convenient disassembly / reassembly mechanism 6 includes multiple integrated parts 61. A rotating frame 62 is fixedly connected to the middle of one side of each integrated part 61. A rotating shaft 63 is rotatably connected to one end of the rotating frame 62. Locking strips 64 are fixedly connected to both sides of one end of the outer wall of the rotating shaft 63. A locking rod 65 is fixedly connected to one side of one end of the outer wall of the rotating shaft 63. A rotating sleeve 66 is slidably connected to one end of the outer wall of the rotating sleeve 66. A retaining frame 67 is fixedly connected to one side of the outer wall of the rotating sleeve 66. A sliding rod 68 is slidably connected to one end inside the integrated part 61. A hook block 69 is fixedly connected to one side of one end of the outer wall of the sliding rod 68. One end of the rod 68 is fixedly connected to a spring telescopic rod 610, one side of the upper end face of the integrated part 61 is fixedly connected to a plug pipe 611, one end of one side end face of the integrated part 61 is threadedly connected to a fixing screw 612, and four corners of the base 7 are fixedly connected to pins 613. This device, by setting a convenient disassembly and assembly mechanism 6 on the mounting base 5, which consists of the integrated part 61, the rotating frame 62, the rotating shaft 63, the locking strip 64, the locking rod 65, the rotating sleeve 66, the locking frame 67, the sliding rod 68, the hook block 69, the spring telescopic rod 610, the plug pipe 611, the fixing screw 612, and the pins 613 that cooperate with the base 7, can effectively simplify the disassembly and assembly operations between the mounting base 5 and the base 7 and improve the disassembly and assembly efficiency. At the same time, the locking effect of multiple components ensures a stable connection, which is convenient for subsequent maintenance and repair of the fan body 8.

[0035] Reference Figure 3-6 An air outlet flange 2 is threadedly connected to the middle of one end face of the housing 1. Opening and closing fans 3 are provided on both sides of the inner wall of the air outlet flange 2. The air outlet flange 2 can be easily disassembled and installed to adapt to different air outlet ducts. The opening and closing fans 3 can flexibly control the opening and closing of the air outlet channel, which is convenient for adjusting the smoke exhaust volume and can also prevent external debris from entering the housing 1 when the equipment is stopped.

[0036] An air inlet flange 4 is threadedly connected to the middle of the other end face of the housing 1. An mounting base 5 is fixedly connected to the bottom inside the housing 1. A base 7 is snapped into the middle of the upper end face of the mounting base 5. The fan body 8 is fixedly connected to the upper end of the base 7. The threaded connection of the air inlet flange 4 facilitates the connection and installation with the air inlet pipe. The snapping structure between the mounting base 5 and the base 7 enables the fan body 8 to be quickly positioned and placed, ensuring the fan body 8 is stably installed while simplifying the disassembly and assembly process inside the housing 1.

[0037] One end of the retaining strip 64 passes through one side of the outer wall of the rotating sleeve 66 and forms a sliding connection with it. One end of the rotating shaft 63 passes through the middle of one side end face of the integration part 61 and forms a rotational connection with one end of the rotating frame 62. The retaining strip 64 can restrict the relative circumferential rotation of the rotating sleeve 66 and the rotating shaft 63, so that the two can rotate synchronously. At the same time, it allows the rotating sleeve 66 to slide along the axial direction of the rotating shaft 63. The rotational connection between the rotating shaft 63 and the rotating frame 62 provides a flexible rotational basis and ensures the motion coordination of the convenient disassembly and assembly mechanism 6.

[0038] One end of the spring telescopic rod 610 is fixedly connected to one end inside the assembly 61, and one end of the fixing screw 612 is engaged with one side of the outer wall of the slide rod 68. The spring telescopic rod 610 can apply an elastic force to the slide rod 68, giving it the ability to return to its original position. The engagement between the fixing screw 612 and the slide rod 68 can lock the position of the slide rod 68, preventing it from moving due to accidental force during operation, thus balancing the movement flexibility and positional stability of the slide rod 68.

[0039] The hook block 69 and the outer wall of the frame 67 form an engaging connection. The length of the frame 67 is greater than the length of the hook block 69. The engaging of the hook block 69 and the frame 67 can realize the linkage between the slide rod 68 and the rotating sleeve 66. The length of the frame 67 is greater than the length of the hook block 69, which can provide sufficient engaging space for the hook block 69, ensuring that the two engage reliably and avoiding separation due to excessive relative displacement.

[0040] The protrusion on one side of the locking rod 65 engages with the middle of one side of the insertion tube 611. A pin 613 is slidably connected to one side of the inner wall of the insertion tube 611. The protrusion on one side of the locking rod 65 also engages with the middle of one side of the pin 613. The protrusion of the locking rod 65 can simultaneously clamp the insertion tube 611 and the pin 613, firmly restricting the pin 613 within the insertion tube 611, thus achieving a reliable connection between the pin 613 and the insertion tube 611. This ensures a stable fixation between the base 7 and the mounting base 5, preventing loosening during equipment operation.

[0041] Working principle: When maintenance and repair of the fan body 8 are required, quick disassembly and assembly are achieved through the convenient disassembly and assembly mechanism 6. During installation, align the base with which the fan body 8 is fixed with the mounting base 5, so that the pins 613 at the four corners of the base 7 are inserted into the corresponding insertion pipes 611 in the mounting base 5. Then, rotate the rotating shaft 63 (the rotating shaft 63 achieves stable rotation through the rotating frame 62, and the retaining strip 64 restricts the relative circumferential rotation of the rotating sleeve 66 and the rotating shaft 63 to ensure that the two rotate synchronously), which drives the locking rod 65 to rotate, so that the protrusion on the end face of the locking rod 65 simultaneously engages with the corresponding slots of the insertion pipe 611 and the pins 613, initially fixing the pins 613. At the same time, the sliding rod in the integration part 61... Under the elastic force of the spring telescopic rod 610, 68 resets, causing the hook block 69 to engage in the retaining frame 67 of the rotating sleeve 66, forming a linkage lock. Finally, tighten the fixing screw 612, so that one end of the fixing screw 612 locks the slide rod 68, preventing the slide rod 68 from moving accidentally, and finally achieving a stable connection between the base 7 and the mounting base 5. When disassembling, loosen the fixing screw 612 in the opposite direction, push the slide rod 68 to make the hook block disengage from the retaining frame 67, and then rotate the rotating shaft 63 in the opposite direction to make the locking rod 65 protrude and disengage from the insertion tube 611 and the pin 613. The pin 613 can then be removed from the insertion tube 611, and the base 7 and the fan body 8 can be removed from the mounting base 5 for convenient maintenance.

[0042] The following points should be noted in this article:

[0043] 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in a general design.

[0044] 2. Where there is no conflict, the embodiments of this disclosure and the features in the embodiments can be combined with each other to obtain new embodiments.

[0045] 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. An axial flow fire-fighting smoke exhaust fan, comprising a housing (1), an outlet flange (2), a hinged fan (3), an inlet flange (4), a mounting base (5), a base (7), and a fan body (8), characterized in that: The mounting base (5) has threaded rods at the four corners of its upper surface, each connected to a convenient disassembly and assembly mechanism (6). The convenient disassembly and assembly mechanism (6) includes multiple integrated parts (61). A rotating frame (62) is fixedly connected to the middle of one end face of each integrated part (61). A rotating shaft (63) is rotatably connected to one end of the rotating frame (62). Locking strips (64) are fixedly connected to both sides of one end of the outer wall of the rotating shaft (63). A locking rod (65) is fixedly connected to one side of one end of the outer wall of the rotating shaft (63). A rotating sleeve (66) is slidably connected to one end of the outer wall of the rotating shaft (63). A fixed locking rod (65) is fixed to one side of the outer wall of the rotating sleeve (66). A card frame (67) is connected, and a slide rod (68) is slidably connected to one end of the integrated part (61). A hook block (69) is fixedly connected to one side of one end of the outer wall of the slide rod (68). A spring telescopic rod (610) is fixedly connected to one end of the slide rod (68). A plug tube (611) is fixedly connected to one side of the upper end face of the integrated part (61). A fixing screw (612) is threadedly connected to one end of one side end face of the integrated part (61). Pins (613) are fixedly connected to the four corners of the base (7).

2. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: An air outlet flange (2) is threadedly connected to the middle of one end face of the housing (1), and opening and closing fans (3) are provided on both sides of the inner wall of the air outlet flange (2).

3. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: An air inlet flange (4) is threadedly connected to the middle of the other end face of the housing (1). An installation base (5) is fixedly connected to the bottom surface inside the housing (1). A base (7) is engaged in the middle of the upper end face of the installation base (5). A fan body (8) is fixedly connected to the upper end of the base (7).

4. The axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: One end of the card strip (64) passes through one side of the outer wall of the rotating sleeve (66) and forms a sliding connection with it. One end of the rotating shaft (63) passes through the middle of one side end face of the integrated part (61) and forms a rotating connection with one end of the rotating frame (62).

5. An axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: One end of the spring telescopic rod (610) is fixedly connected to one end inside the integrated part (61), and one end of the fixing screw (612) is engaged with one side of one end of the outer wall of the slide rod (68).

6. An axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The hook block (69) is engaged with the outer wall of the frame (67), and the length of the frame (67) is greater than the length of the hook block (69).

7. An axial flow fire-fighting smoke exhaust fan according to claim 1, characterized in that: The protrusion on one side of the locking rod (65) engages with the middle part of one side of the insertion tube (611). A pin (613) is slidably connected to one side of the inner wall of the insertion tube (611). The protrusion on one side of the locking rod (65) also engages with the middle part of one side of the pin (613).

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