Novel anti-explosion cooling fan shell

Abstract

The utility model relates to a novel anti-explosion heat dissipation fan shell which comprises a hollow air duct with two open sides and an air door located on one side of an air outlet of the air duct, a fan body is arranged in the air duct, a lead screw is arranged in the fan body in a sliding and penetrating mode, a rotor of the fan body is in transmission with the lead screw, and the lead screw is arranged on the air door. The shell has the effect of saving the space occupied by the shell.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of explosion-proof fans, in particular to a novel explosion-proof heat-dissipation fan shell. BACKGROUND

[0002] An explosion-proof fan is a special fan that can safely operate in a dangerous environment, and is mainly applied to industrial production sites and chemical equipment environments, and the core purpose is to prevent explosion accidents.

[0003] In the related art, an explosion-proof fan used on an energy storage box is disclosed, which comprises a hollow shell, a fan body arranged in the shell, a damper hinged to one side of an air outlet of the shell, and a driving member arranged in the shell for driving the damper to rotate, wherein the driving member is usually an electric push cylinder in the prior art.

[0004] In order to install the electric push cylinder, sufficient installation space needs to be reserved in the shell, which causes the shell to occupy a large space and has a small application range, and obvious defects exist. CONTENT OF THE UTILITY MODEL

[0005] In order to reduce the space occupied by the shell as a whole, the application provides a novel explosion-proof heat-dissipation fan shell.

[0006] The novel explosion-proof heat-dissipation fan shell provided by the application adopts the following technical scheme:

[0007] The novel explosion-proof heat-dissipation fan shell comprises a hollow air duct with both sides open, and a damper located at one side of an air outlet of the air duct, wherein a fan body is arranged in the air duct, a lead screw is slidably arranged in the fan body, and a rotor of the fan body is connected to the lead screw, and the lead screw is arranged in the damper.

[0008] Through the above technical scheme, when the fan body is working, the rotation of the rotor can transmit power to the lead screw, so that the lead screw gradually moves out of the fan body, and in turn drives the damper to translate, and one side of the air outlet of the air duct is open. The application uses the fan body itself as the power for opening and closing the damper, and adopts a flat opening instead of a hinge, so as to realize the opening and closing of the damper and reduce the space occupied by the explosion-proof fan as a whole.

[0009] Optionally, a guide groove is formed in the air duct along the axial direction of the air duct, and a guide column is arranged on the damper and extends into the guide groove and is in sliding cooperation with the guide groove.

[0010] Through the above technical scheme, the guide column and the guide groove are in sliding cooperation, and in turn play a guiding role in the translation of the damper.

[0011] Optionally, a step is arranged in the guide groove close to the damper, and an end of the guide column away from the damper has a T-shaped cross section and is used for abutting against the step.

[0012] By adopting the technical scheme, the end of the guide column in T shape is matched with the step to limit the maximum translation distance of the air door.

[0013] Optionally, a fastening bolt is threadedly connected to the end of the guide column, a limiting sheet is arranged between the end face of the guide column and the fastening bolt, a clamping groove is circumferentially arranged on the outer side wall of the guide column, and a C-shaped elastic clamping hoop is clamped in the clamping groove.

[0014] By adopting the technical scheme, the limiting sheet and the elastic clamping hoop are matched to achieve detachable connection between the air door and the guide column.

[0015] Optionally, a mounting disc plate is arranged on the lead screw and connected to the air door.

[0016] By adopting the technical scheme, the mounting disc plate supports the air door and improves the structural strength of the air door.

[0017] Optionally, a frame ring with an L-shaped cross section is arranged on the side of the air duct opposite to the air outlet, a plurality of elastic arc clamping hoops for abutting against the frame ring are circumferentially and spaced apart on the air door, and an elastic hook edge with a J-shaped cross section for hooking the frame ring is arranged on the elastic arc clamping hoop.

[0018] By adopting the technical scheme, the elastic hook edge can be deformed, so that the elastic hook edge can be disengaged from and engaged with the frame ring in the process of translation of the air door, thereby improving the sealing performance between the air door and the side of the air outlet of the air duct.

[0019] Optionally, a weight-reducing groove is circumferentially and longitudinally arranged on the elastic arc clamping hoop.

[0020] By adopting the technical scheme, the weight-reducing groove not only plays a weight-reducing role, but also saves the material of the elastic arc clamping hoop.

[0021] In summary, the present application has at least one of the following beneficial technical effects:

[0022] 1. When the fan body is working, the rotation of the rotor can transmit power to the lead screw, so that the lead screw gradually moves out of the fan body, thereby driving the air door to translate, and the side of the air outlet of the air duct is open. The present application uses the fan body itself as the power for opening and closing the air door, and adopts a flat opening instead of a hinged connection, to realize the opening and closing of the air door and reduce the space occupied by the whole explosion-proof fan.

[0023] 2. The elastic hook edge can be deformed, so that the elastic hook edge can be disengaged from and engaged with the frame ring in the process of translation of the air door, thereby improving the sealing performance between the air door and the side of the air outlet of the air duct. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 is a structural schematic diagram of an embodiment of the present application.

[0025] Figure 2 is a sectional view of an embodiment of the present application.

[0026] Figure 3 is Figure 2 is an enlarged view of part A in FIG. 1.

[0027] Reference signs: 1, air duct; 101, guide groove; 2, air baffle; 3, screw rod; 4, guide column; 401, clamping groove; 5, step; 6, fastening bolt; 7, limiting piece; 8, elastic clamp; 9, mounting plate; 10, bracket ring; 11, elastic arc clamp ring; 111, lightening hole; 12, elastic hook edge; 13, fan body. DETAILED DESCRIPTION

[0028] The following will be described in detail in combination with the accompanying Figures 1-3 The present application is further described in detail.

[0029] The embodiment of the present application discloses a novel explosion-proof heat dissipation fan shell.

[0030] Referring to Figure 1 , the novel explosion-proof heat dissipation fan shell comprises an air duct 1 which is hollow and cylindrical, and the two sides of the air duct 1 are open in the axial direction, one side is an air inlet, and the other side is an air outlet.

[0031] Referring to Figure 1 and Figure 2 , the fan body 13 is arranged in the air duct 1, and a circular plate-shaped air baffle 2 is arranged on the side of the air duct 1 opposite to the air outlet. The screw rod 3 is slidably arranged in the fan body 13, the rotor of the fan body 13 is driven by the screw rod 3, and the screw rod 3 is connected to the air baffle 2.

[0032] The guide groove 101 is formed on the air duct 1 along the axial direction, and the guide column 4 which extends into the guide groove 101 and is in sliding cooperation with the guide groove 101 is detachably connected to the air baffle 2. The step 5 is arranged in the guide groove 101 close to the air baffle 2, and the end of the guide column 4 away from the air baffle 2 is in T-shaped cross section.

[0033] Referring to Figure 1 and Figure 2 , when the fan body 13 works, the rotor rotates, the rotor transmits power to the screw rod 3, the screw rod 3 drives the air baffle 2 to translate, and the side of the air duct 1 opposite to the air outlet is open.

[0034] When the air baffle moves, the guide column 4 slides in the guide groove 101, and when the end of the guide column 4 in T shape abuts against the step 5, the air baffle moves to the limit position.

[0035] Referring to Figure 1Therefore, the fan body 13 is used as a power source, a flat opening is used instead of a hinged opening, the opening and closing of the air door 2 is realized, and the space occupied by the whole explosion-proof fan is saved.

[0036] Referring to Figure 2 and Figure 3 The end of the guide column 4 is threadedly connected with a fastening bolt 6, and a limiting sheet 7 is clamped between the end face of the guide column 4 and the fastening bolt 6. A clamping groove 401 is formed in the circumferential outer side wall of the guide column 4 in a circumferential direction, and a C-shaped elastic clamping hoop 8 is clamped in the clamping groove 401. The air door 2 is located between the limiting sheet 7 and the elastic clamping hoop 8.

[0037] The elastic clamping hoop 8 can be clamped in the clamping groove 401 through deformation, so that the elastic clamping hoop 8 cooperates with the limiting sheet 7 to realize detachable connection between the guide column 4 and the air door 2, which not only facilitates assembly between components, but also is beneficial to disassembly and maintenance work in the later period.

[0038] Referring to Figure 2 The lead screw 3 is provided with a mounting disc plate 9, and the mounting disc plate 9 is welded with the air door 2. Although the air door 2 is made of metal, the thickness thereof is relatively small. Therefore, the mounting disc plate 9 can not only support the air door 2, but also improve the structural strength of the air door 2, thereby playing a reinforcing role.

[0039] Referring to Figure 3 The air duct 1 is integrally formed with an L-shaped frame ring 10 on the side opposite to the air outlet. A plurality of elastic arc clamping hoops 11 for abutting against the frame ring 10 are spaced apart and adhered to the air door 2 in a circumferential direction. The elastic arc clamping hoop 11 is provided with a weight-reducing groove hole 111 which is opened in an arc direction. The elastic arc clamping hoop 11 is integrally formed with an elastic hook edge 12 which is in a J-shaped cross section and is used for hooking the frame ring 10.

[0040] Referring to Figure 3 Since the elastic hook edge 12 and the elastic arc clamping hoop 11 are made of elastic material, when the air door 2 moves, the elastic hook edge 12 can be engaged with or separated from the frame ring 10 through deformation. When in the engaged state, the frame ring 10 is tightly attached to the elastic arc clamping hoop 11, thereby improving the sealing performance between the air door 2 and the air duct 1.

[0041] The implementation principle of the explosion-proof cooling fan shell is that when the fan body 13 works, the rotor rotates, the rotor transmits power to the lead screw 3, the lead screw 3 drives the air door 2 to translate, and the side of the air outlet of the air duct 1 is open. The fan body 13 is used as a power source, a flat opening is used instead of a hinged opening, the opening and closing of the air door 2 is realized, and the space occupied by the whole explosion-proof fan is saved.

[0042] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application, so that: all equivalent changes made according to the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A new explosion-proof heat dissipation fan shell, comprising a hollow and open on both sides of the wind pipe (1), a damper (2) located on one side of the air outlet of the wind pipe (1), and a fan body (13) arranged in the wind pipe (1), characterized in that: The fan body (13) is slidably provided with a screw rod (3), and the rotor of the fan body (13) is driven by the screw rod (3), which is arranged on the air door (2).

2. A new type of explosion-proof heat dissipation fan shell according to claim 1, characterized in that: The air duct (1) is provided with a guide groove (101) along the axial direction, and the air door (2) is provided with a guide column (4) extending into the guide groove (101) and in sliding fit with the guide groove (101).

3. A new type of explosion-proof heat dissipation fan shell according to claim 2, characterized in that: The guide groove (101) is provided with a step (5) near the air door (2), and the end of the guide column (4) away from the air door (2) is T-shaped in cross section and used for abutting against the step (5).

4. A new type of explosion-proof heat dissipation fan shell according to claim 2, characterized in that: The end of the guide column (4) is threadedly connected with a fastening bolt (6), a limiting sheet (7) is arranged between the end surface of the guide column (4) and the fastening bolt (6), a clamping groove (401) is circumferentially formed on the outer wall of the guide column (4), a C-shaped elastic clamping hoop (8) is clamped in the clamping groove (401), and the air door (2) is located between the limiting sheet (7) and the elastic clamping hoop (8).

5. A new type of explosion-proof heat dissipation fan shell according to claim 1, characterized in that: The screw rod (3) is provided with a mounting disc plate (9) connected with the air door (2).

6. A new type of explosion-proof heat dissipation fan shell according to claim 1, characterized in that: The air duct (1) is provided with an L-shaped bracket ring (10) on the side opposite to the air outlet, a plurality of elastic arc clamping rings (11) are circumferentially and spacedly arranged on the air door (2) and used for abutting against the bracket ring (10), and the elastic arc clamping ring (11) is provided with an elastic hook edge (12) which is J-shaped in cross section and used for hooking the bracket ring (10).

7. A new type of explosion-proof heat dissipation fan shell according to claim 6, characterized in that: The elastic arc clamping ring (11) is provided with a weight-reducing groove hole (111) in the arc direction.

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