Anti-explosion axial flow fan

Abstract

The utility model discloses an explosion-proof axial flow fan which comprises an explosion-proof guardrail, fan end caps, a fan cover and safety protection rods, the fan cover is arranged on the outer side of an axial flow fan motor, a plurality of safety protection rods are arranged on the outer side of the fan cover, the fan end caps are arranged on the side edges of end openings of the two ends of the fan cover, and the safety protection rods are arranged on the side edges of the end openings of the two ends of the fan cover. And an anti-explosion guardrail is arranged in the middle of the fan end cap through a mounting frame. The safety protection rods are arranged on the outer side of the fan cover, the protection strength of the outer side of the fan cover can be improved through the safety protection rods, the safety protection rods are arranged on the rod frame, the plug is arranged at the bottom of the rod frame, the safety protection rods and the installation base are conveniently installed and fixed through the plug, and the safety protection rods are conveniently installed and fixed; the fan end caps are arranged at the two ends of the fan cover, end protection can be conducted on the fan cover through the fan end caps, the anti-explosion guardrails are arranged in the middles of the fan end caps through the mounting frames, and anti-explosion protection can be conducted on the ends of the fan cover through the anti-explosion guardrails.

Description

Technical Field

[0001] The utility model relates to the relevant field of axial flow fans, in particular to an explosion-proof axial flow fan. Background Art

[0002] Axial flow fans, also known as local ventilators, are a type of fan commonly used in industrial and mining enterprises. Axial flow fans are mainly composed of fan impellers and casings. Axial flow fans can be divided into steel fans, anti-corrosion fans, PVC fans, and stainless steel fans. Axial flow fans are usually used in situations where flow requirements are high and pressure requirements are low. They can be used for ventilation or heat dissipation in places such as metallurgy, chemical industry, light industry, food, medical equipment, mechanical equipment, and civil buildings;

[0003] For example, the authorized patent with publication number CN219711866U (axial flow fan impeller and axial flow fan): includes an axial flow fan and an impeller, the outer wall of the axial flow fan is fixedly connected to a support frame, and the outer wall of the support frame is fixedly connected to a shell, one side of the bottom end of the axial flow fan is fixedly connected to a support block, the center of one side of the impeller is fixedly connected to a connecting shaft, and one end of the connecting shaft is fixedly connected to a rotating disk, and the outer wall of the impeller is fixedly connected to a plurality of blades. The utility model utilizes a support frame to provide all-round fixed support to the outer wall of the axial flow fan in a sleeve-knot manner, and then fixes the bottom of the axial flow fan by a support block, so that the axial flow fan is more stable, reduces and reduces vibration, and improves the rotation efficiency of the impeller, and one end of the blade is connected to the inside of the connection port through a connecting rod, so that the blade is connected to the impeller, and then fixed through a positioning rod, so as to facilitate the replacement of different types of blades and improve the applicability of the device;

[0004] The above-mentioned prior art fans have insufficient explosion-proof capabilities, and the fan cover cannot provide all-round protection, the protection is not safe enough, the installation and fixation of the safety protection rod is not convenient enough, the protection strength for the end of the fan cover is not enough, and multiple protection methods cannot be provided. Utility Model Content

[0005] The purpose of the utility model is to provide an explosion-proof axial flow fan to solve the problems proposed in the above-mentioned background technology that the fan has insufficient explosion-proof capability, the fan cover cannot provide all-round protection, the protection is not safe enough, the installation and fixation of the safety protection rod is not convenient enough, the protection strength at the end of the fan cover is not enough, and multiple protection methods cannot be provided.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof axial flow fan, comprising an explosion-proof guardrail, a fan end cap, a fan cover and a safety protection rod, wherein the fan cover is arranged on the outside of the axial flow fan motor, and a plurality of safety protection rods are arranged on the outside of the fan cover, and fan end caps are arranged on the sides of the two end ports of the fan cover, and an explosion-proof guardrail is arranged in the middle of the fan end cap through an installation frame.

[0007] In a further embodiment, the explosion-proof guardrail is configured as an outer arc-shaped structure, and a center sleeve is provided in the middle of the explosion-proof guardrail.

[0008] In a further embodiment, a rod bracket is further included, and the rod bracket is used to install a safety protection rod.

[0009] In a further embodiment, plugs are provided on both sides of the bottom of the rod frame, a plurality of mounting seats are provided on the outer side of the fan cover, and the plugs are assembled with the mounting seats.

[0010] In a further embodiment, a fan blade is provided inside the fan cover, and the fan blade is connected to the output shaft of the axial flow motor.

[0011] In a further embodiment, an axial flow outlet is provided in the middle of the end surface of the fan cover, a mounting plate is provided in the middle of the fan blade, and the mounting plate is rotatably connected to the center sleeve through a connecting shaft.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] 1. The utility model has multiple safety protection rods on the outside of the fan cover, which can improve the protection strength of the outside of the fan cover. The safety protection rods are arranged on a rod frame, and a plug is provided at the bottom of the rod frame. The plug is convenient for installation and fixation with the mounting seat, making it convenient to install and fix the safety protection rods.

[0014] 2. The utility model provides fan end caps at both ends of the fan hood, through which the ends of the fan hood can be protected, and an explosion-proof guardrail is provided in the middle of the fan end cap through an installation frame, through which the ends of the fan hood can be explosion-protected, thereby greatly improving the protective strength and safety of the fan hood. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a structural schematic diagram of an explosion-proof axial flow fan of the utility model;

[0016] Figure 2 It is the front view of the utility model;

[0017] Figure 3 This is the front view of the explosion-proof guardrail of the utility model;

[0018] Figure 4 It is the front view of the safety protection rod of the utility model.

[0019] In the figure: 1. explosion-proof guardrail; 2. center sleeve; 3. fan end cap; 4. fan cover; 5. safety protection rod; 6. mounting seat; 7. mounting frame; 8. axial flow exhaust port; 9. fan blade; 10. plug; 11. pole bracket. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0021] See also Figure 1-4 The utility model provides an embodiment: an explosion-proof axial flow fan, comprising an explosion-proof guardrail 1, a fan end cap 3, a fan cover 4 and a safety protection rod 5. The fan cover 4 is arranged on the outside of the axial flow fan motor, and a plurality of safety protection rods 5 are arranged on the outside of the fan cover 4. Fan end caps 3 are arranged on the sides of the two end ports of the fan cover 4. An explosion-proof guardrail 1 is arranged in the middle of the fan end cap 3 through an installation frame 7. The fan cover 4 can be used to protect the axial flow fan motor from the outside, and the safety protection rod 5 is used to protect the fan cover 4 from the outside. The end of the fan cover 4 can be protected by the fan end cap 3, and the end of the fan cover 4 can be protected by the installation of the explosion-proof and explosion-proof guardrail 1 through the installation frame 7.

[0022] The explosion-proof guardrail 1 is designed as an outer arc structure, and a center sleeve 2 is provided in the middle of the explosion-proof guardrail 1. The explosion-proof guardrail 1 of this design enables the fan end cap 3 to be safely explosion-proof. The fan cover 4 is provided with a fan blade 9 inside, and the fan blade 9 is connected to the output shaft of the axial flow motor, and the fan blade 9 is driven to rotate by the motor; an axial flow exhaust port 8 is provided in the middle of the end face of the fan cover 4, and a mounting plate is provided in the middle of the fan blade 9, and the mounting plate is rotatably connected to the center sleeve 2 through a connecting shaft, and the axial flow exhaust port 8 is used to exhaust air through the axial flow, and the center sleeve 2 is conveniently connected to the connecting shaft for rotation.

[0023] The rod frame 11 is used to install the safety protection rod 5, and the rod frame 11 facilitates the installation of the safety protection rod 5; plugs 10 are provided on both sides of the bottom of the rod frame 11, and multiple mounting seats 6 are provided on the outer side of the fan cover 4, and the plugs 10 are inlaid and assembled with the mounting seats 6, which facilitates the installation of the rod frame 11.

[0024] Working principle: When in use, the safety protection rod 5 is arranged on the inner side of the rod frame 11, and the bottom of the rod frame 11 is connected to the mounting seat 6 through the plug 10. The safety protection rod 5 can be used to safely protect the outer side of the fan cover 4, and the middle part can be explosion-proof protected. The fan end cap 3 can be used to safely protect the end of the fan cover 4, and the explosion-proof guardrail 1 can be used to protect the end face of the fan end cap 3. The center sleeve 2 is used to rotatably connect with the connecting shaft in the middle of the fan blade 9, and the fan blade 9 is driven to rotate by the motor to control the axial flow blowing.

[0025] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An explosion-proof axial flow fan, comprising an explosion-proof guardrail (1), a fan end cap (3), a fan cover (4) and a safety protection rod (5), characterized in that: The fan cover (4) is arranged on the outside of the axial flow fan motor, and a plurality of safety protection rods (5) are arranged on the outside of the fan cover (4). Fan end caps (3) are arranged on both end port sides of the fan cover (4), and an explosion-proof guardrail (1) is arranged in the middle of the fan end cap (3) via a mounting frame (7).

2. The explosion-proof axial flow fan according to claim 1, characterized in that: The explosion-proof guardrail (1) is configured as an outer arc-shaped structure, and a center sleeve (2) is provided in the middle of the explosion-proof guardrail (1).

3. The explosion-proof axial flow fan according to claim 1, characterized in that: It also comprises a rod frame (11), wherein the rod frame (11) is used to install the safety protection rod (5).

4. The explosion-proof axial flow fan according to claim 3, characterized in that: Plugs (10) are provided on both sides of the bottom of the rod frame (11), a plurality of mounting seats (6) are provided on the outer side of the fan cover (4), and the plugs (10) are assembled with the mounting seats (6) by inlay.

5. The explosion-proof axial flow fan according to claim 1, characterized in that: The fan cover (4) is provided with a fan blade (9) inside, and the fan blade (9) is connected to the output shaft of the axial flow motor.

6. The explosion-proof axial flow fan according to claim 5, characterized in that: An axial flow outlet (8) is provided in the middle of the end surface of the fan cover (4), and a mounting plate is provided in the middle of the fan blade (9), and the mounting plate is rotatably connected to the center sleeve (2) via a connecting shaft.

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