Cabinet type centrifugal fan

Abstract

The utility model discloses a cabinet type centrifugal fan which comprises a fan body, a fan cover and a fan cover. An air inlet is formed in the front face of the fan body. An extension pipe assembly is arranged at one end of the air inlet, and the pressing mechanism comprises an elastic assembly arranged on the side face of the extension pipe assembly; the fixing block is fixed to the top of the elastic assembly; the moving assembly is arranged at one end of the fixed block; the pressing rod is fixed to the bottom of the moving assembly; and the conical edge is fixed on the outer wall of the pressing rod. By means of the arrangement mode that the extension pipe assembly and the pressing mechanism are matched, the pressing rod can be inserted between the extension pipe assembly and the air inlet conveniently through the elastic assembly, the pressing mechanism can press the air inlets with different thicknesses through the moving assembly, the air inlets are tightly attached through the pressing rod, and therefore the air inlets with different thicknesses can be tightly pressed. The extension pipe assembly can be conveniently installed on the front face of the air inlet, and the installation efficiency of the extension pipe assembly is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cabinet type centrifugal fans, in particular to a cabinet type centrifugal fan. Background Art

[0002] Cabinet type centrifugal fan is a high efficiency, low noise cabinet type centrifugal fan, with high temperature resistance, excellent performance, novel and compact structure, small vibration, light weight, easy installation and use, etc. Cabinet type fan provides different inlet and outlet directions.

[0003] Application No. 202221839939.3 A cabinet centrifugal fan, comprising a cabinet centrifugal fan housing, a cover plate, a fan, a transmission belt and a motor, wherein a housing is provided with a receiving cavity and an opening connected to the receiving cavity, the fan is installed on one side of the cover plate, the transmission belt is installed on the side of the cover plate away from the fan, the shaft of the fan passes through the cover plate and is connected to one end of the transmission belt, the other end of the transmission belt is connected to the motor, a slide rail is installed in the housing of the cabinet centrifugal fan housing, and a slide is connected to the cover plate. The above-mentioned fan is convenient for people to repair the centrifugal fan, but when the centrifugal fan is in use, due to the need of the situation, an air inlet pipe needs to be connected to extend the air inlet, but the connection between the existing air inlet pipe and the air inlet is fixed by a locking bolt, and the process of tightening the bolt takes a long time, and the air inlets of different thicknesses cannot be quickly clamped, which affects the installation efficiency between the extended air inlet pipe and the air inlet. Utility Model Content

[0004] The purpose of the utility model is to provide a cabinet-type centrifugal fan to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a cabinet-type centrifugal fan, comprising: a fan body, the front of which is fixedly connected with an air inlet;

[0006] An extension tube assembly is provided at one end of the air inlet, and a plurality of clamping mechanisms are provided on the outer wall of one end of the extension tube assembly in a rectangular array, wherein the clamping mechanism comprises:

[0007] An elastic component, wherein the elastic component is arranged on a side of the extension tube component;

[0008] A fixing block, wherein the fixing block is fixed to the top of the elastic component;

[0009] A moving component, wherein the moving component is arranged at one end of the fixed block;

[0010] A pressure rod, the pressure rod being fixed to the bottom of the moving assembly;

[0011] The conical edge is fixed to the outer wall of the pressure rod, and the pressure rod is interlaced and connected with the side edge of the air inlet.

[0012] Preferably, the extension tube assembly comprises:

[0013] A mounting plate, the mounting plate being attached to the front side of the air inlet;

[0014] The extended air duct is fixed to the middle part of the mounting plate.

[0015] Preferably, a plurality of the elastic components are arranged in a rectangular array on the outer wall of the mounting plate, and a connecting rod is provided between two adjacent elastic components.

[0016] Preferably, the elastic component comprises:

[0017] A movable groove, the movable groove is opened on the outer wall of the mounting plate;

[0018] A connecting pipe, wherein the connecting pipe is slidably connected to the inner cavity of the movable groove, and one end of the connecting pipe is fixedly connected to the other end of the fixed block;

[0019] A tension spring is arranged in the inner cavity of the connecting pipe.

[0020] Preferably, one end of the tension spring is fixed to the top of the inner wall of the connecting pipe, and the other end of the tension spring is fixed to the inner wall of the movable groove.

[0021] Preferably, the moving component comprises:

[0022] A moving block, wherein the moving block is arranged at one end of the fixed block, and the pressure rod is fixed at the bottom of the moving block;

[0023] A screw rod, the screw rod is interlaced and connected with the middle thread of the moving block;

[0024] A plurality of limit rods are respectively fixed on two sides of one end of the moving block.

[0025] Preferably, one end of the screw rod is rotatably interlaced with one end of the fixed block via a bearing, and the limiting rod is slidably interlaced with one end of the fixed block.

[0026] Technical effects and advantages of the utility model:

[0027] The utility model adopts the arrangement mode that the extension tube assembly and the pressing mechanism are matched, and the elastic component makes it easy for the pressing rod to be inserted between the extension tube assembly and the air inlet. The movable component is used to facilitate the position adjustment of the pressing rod, so that the pressing mechanism can press the air inlets of different thicknesses. Moreover, the tight fit of the pressing rod to the air inlet makes it easy to install the extension tube assembly on the front side of the air inlet, thereby improving the installation efficiency of the extension tube assembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0029] Figure 2 It is a schematic diagram of the side sectional structure of the air inlet of the utility model.

[0030] Figure 3 It is a schematic diagram of the cross-sectional structure of the movable block of the utility model in a top view.

[0031] In the figure: 1. fan body; 2. air inlet; 3. extension pipe assembly; 31. mounting plate; 32. extension duct; 4. clamping mechanism; 41. elastic assembly; 411. movable groove; 412. connecting pipe; 413. tension spring; 42. fixed block; 43. moving assembly; 431. moving block; 432. screw; 433. limiting rod; 44. pressure rod; 45. tapered edge; 5. connecting rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model provides Figure 1-3 A cabinet-type centrifugal fan is shown, comprising:

[0034] The fan body 1 is fixedly connected with an air inlet 2 on the front side of the fan body 1, and an extension pipe assembly 3 is arranged at one end of the air inlet 2. The extension pipe assembly 3 comprises: a mounting plate 31 and an extension air duct 32. The mounting plate 31 is attached to the front side of the air inlet 2, and the extension air duct 32 is fixed to the middle part of the mounting plate 31. The length of the extension air duct 32 is not limited, so that it is convenient to be applicable to the air inlet requirements of different occasions.

[0035] Furthermore, the outer wall of one end of the extension tube assembly 3 is provided with a plurality of clamping mechanisms 4 in a rectangular array, and the clamping mechanism 4 includes: an elastic component 41, a fixed block 42, a movable component 43, a pressure rod 44 and a tapered edge 45. The elastic component 41 is arranged on the side of the extension tube assembly 3, and two adjacent elastic components 41 are arranged on the same side of the outer wall of the mounting plate 31. The fixed block 42 is fixed to the top of the elastic component 41, the movable component 43 is arranged at one end of the fixed block 42, the pressure rod 44 is fixed to the bottom of the movable component 43, and the tapered edge 45 is fixed to the outer wall of the pressure rod 44. The pressure rod 44 is connected with the side of the air inlet 2 through an interlaced connection, and the bottom of the pressure rod 44 is an arc-shaped structure. Through the tapered edge 45, when the pressure rod 44 is pressed, the mounting plate 31 and the air inlet 2 can be tightly squeezed, and the convenience of pressing the pressure rod 44 is facilitated;

[0036] Specifically, a plurality of elastic components 41 are arranged in a rectangular array on the outer wall of the mounting plate 31, and a connecting rod 5 is arranged between two adjacent elastic components 41. The elastic component 41 includes: a movable groove 411, a connecting pipe 412 and a tension spring 413. The movable groove 411 is opened on the outer wall of the mounting plate 31, the connecting pipe 412 is slidably connected to the inner cavity of the movable groove 411, one end of the connecting pipe 412 is fixedly connected to the other end of the fixing block 42, the tension spring 413 is arranged in the inner cavity of the connecting pipe 412, one end of the tension spring 413 is fixed to the top of the inner wall of the connecting pipe 412, and the tension spring 413 is arranged in the inner cavity of the connecting pipe 412. The other end of 13 is fixed to the inner wall of the movable groove 411, and by pulling the fixed block 42, it is convenient to pull the connecting tube 412, so that the tension spring 413 can be elastically pulled, and the pulling of the fixed block 42 is released to restore the elasticity of the tension spring 413, so that the connecting tube 412 is subjected to a force to slide toward the inner cavity of the movable groove 411, and the inner cavity of the tension spring 413 is sleeved with a positioning rod, the bottom end of the positioning rod is fixed to the bottom of the inner wall of the movable groove 411, and one end of the positioning rod is slidably connected to the inner cavity of the connecting tube 412, so as to improve the stability of the tension spring 413 when used;

[0037] Specifically, the moving assembly 43 includes: a moving block 431, a screw rod 432 and a plurality of limit rods 433. The moving block 431 is arranged at one end of the fixed block 42, the pressure rod 44 is fixed to the bottom of the moving block 431, the screw rod 432 is threadedly connected with the middle part of the moving block 431, and a plurality of limit rods 433 are respectively fixed to the two sides of one end of the moving block 431. One end of the screw rod 432 is rotatably connected with one end of the fixed block 42 through a bearing, and the limit rod 433 is slidably connected with one end of the fixed block 42. Through the limit rod 433, the moving block 431 can only move along the extension direction of the adjacent fixed block 42, and through The rotation of the screw 432 facilitates the stable movement of the movable block 431, so that the pressure rod 44 fixed at the bottom of the movable block 431 can stably adjust the distance between it and the connecting pipe 412, so that the pressure rod 44 can squeeze the outer wall of the air inlet 2 of different thicknesses, and the connecting rod 5 is fixed between two adjacent fixed blocks 42, so that the two fixed blocks 42 on the same side can be pushed and pulled at the same time through the connecting rod 5, thereby improving the convenience of installation between the air inlet 2 at the end of the fan body 1 and the mounting plate 31, and facilitating the convenient installation of the extended air duct 32 on the front of the air inlet 2, thereby improving the installation efficiency between the extension pipe assembly 3 and the air inlet 2.

[0038] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cabinet type centrifugal fan, comprising: A fan body (1), wherein an air inlet (2) is fixedly connected to the front side of the fan body (1); The invention is characterized in that: an extension tube assembly (3) is provided at one end of the air inlet (2); the outer wall of one end of the extension tube assembly (3) is provided with a plurality of clamping mechanisms (4) in a rectangular array, and the clamping mechanism (4) comprises: An elastic component (41), wherein the elastic component (41) is arranged on a side of the extension tube component (3); A fixing block (42), wherein the fixing block (42) is fixed to the top of the elastic component (41); A moving component (43), wherein the moving component (43) is arranged at one end of the fixed block (42); A pressure rod (44), wherein the pressure rod (44) is fixed to the bottom of the moving assembly (43); A conical edge (45) is fixed to the outer wall of a pressure rod (44), and the pressure rod (44) is interlaced and connected with the side edge of the air inlet (2).

2. A cabinet-type centrifugal fan according to claim 1, characterized in that: The extension tube assembly (3) comprises: A mounting plate (31), wherein the mounting plate (31) is attached to the front side of the air inlet (2); An extended air duct (32) is fixed to the middle of the mounting plate (31).

3. A cabinet-type centrifugal fan according to claim 2, characterized in that: A plurality of the elastic components (41) are arranged in a rectangular array on the outer wall of the mounting plate (31), and a connecting rod (5) is arranged between two adjacent elastic components (41).

4. A cabinet-type centrifugal fan according to claim 2, characterized in that: The elastic component (41) comprises: A movable groove (411), wherein the movable groove (411) is formed on the outer wall of the mounting plate (31); A connecting tube (412), wherein the connecting tube (412) is slidably connected to the inner cavity of the movable groove (411), and one end of the connecting tube (412) is fixedly connected to the other end of the fixed block (42); A tension spring (413), wherein the tension spring (413) is arranged in the inner cavity of the connecting tube (412).

5. A cabinet-type centrifugal fan according to claim 4, characterized in that: One end of the tension spring (413) is fixed to the top of the inner wall of the connecting tube (412), and the other end of the tension spring (413) is fixed to the inner wall of the movable groove (411).

6. The cabinet-type centrifugal fan according to claim 2, characterized in that: The moving assembly (43) comprises: A moving block (431), wherein the moving block (431) is arranged at one end of the fixed block (42), and the pressing rod (44) is fixed at the bottom of the moving block (431); A screw rod (432), wherein the screw rod (432) is interlaced and connected with a middle thread of the moving block (431); A plurality of limiting rods (433) are respectively fixed on two sides of one end of the moving block (431).

7. A cabinet-type centrifugal fan according to claim 6, characterized in that: One end of the screw rod (432) is rotatably connected to one end of the fixed block (42) via a bearing, and the limiting rod (433) is slidably connected to one end of the fixed block (42).

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