High-temperature-resistant fan

Abstract

The utility model discloses a high-temperature-resistant fan which comprises a base support, a fan shell is fixedly installed on the front side of the base support, a driving motor is fixedly installed on the rear side of the base support, an output shaft of the driving motor is rotationally connected to the fan shell, and blades are arranged in the fan shell. The blades are fixedly connected to the end, located in the draught fan shell, of an output shaft of the driving motor, the auxiliary support device is installed on the front side of the draught fan shell, and the rapid sealing device is installed on the right side of the draught fan shell. By means of the mode, the auxiliary supporting device can assist in supporting the blades, the detached blades can be quickly moved out of the fan shell, dust removal and maintenance of the blades are facilitated, and the air tightness of the shell can be quickly checked by quickly closing the air outlet of the fan.

Description

Technical Field

[0001] The utility model relates to the technical field of fans, in particular to a high-temperature resistant fan. Background Art

[0002] A high-temperature resistant fan is a fan equipment that can operate stably in a high-temperature environment. The high-temperature resistant fan mainly uses the centrifugal force or axial force generated by the rotation of the impeller to enable the gas to obtain kinetic energy and pressure energy, thereby realizing gas transportation. Its motor usually uses special high-temperature resistant materials and insulation design to ensure normal operation in a high-temperature environment. It is usually used in industrial furnaces, such as furnace ventilation systems in the steel, metallurgy, glass, ceramics and other industries to discharge high-temperature flue gas and provide the air required for combustion. After the fan has been running for a long time, residues in the high-temperature exhaust gas will adhere to the blades, affecting the dynamic balance of the blades. It usually needs to be disassembled and cleaned to improve the stability of the fan operation. In addition, the fan casing must also be checked regularly for sealing to ensure the stability of the fan's wind pressure.

[0003] Chinese patent CN217055707U proposes a high-temperature resistant fan, including a shell, a plurality of first card slots are provided at the end of the shell, an outer ring, a mesh cover is installed inside the outer ring, a plurality of card blocks are installed on the outer wall of the outer ring, a handle ring is hinged to the surface of the outer ring through a rotating shaft, and a movable ring is provided in the inner wall of the shell, a ring groove is provided inside the wall of the shell, a spring piece is installed in the ring groove, the other end of the spring piece is connected to the movable ring, and a plurality of second card slots are provided at one end of the movable ring; by pushing the outer ring toward the shell and rotating the outer ring with the handle ring, the mesh cover can be taken out, thereby quickly removing the dust cover.

[0004] However, the technical solution of this patent has the following problems:

[0005] 1. This patent pushes the outer ring toward the outer shell, and the mesh cover can be removed by rotating the outer ring with a handle, thereby quickly removing the dust cover. However, it cannot assist in removing the blades, and the cooperation of multiple people is required to remove the blades.

[0006] 2. This patent cannot quickly seal the fan outlet to quickly check the air tightness of the casing.

[0007] Therefore, those skilled in the art provide a high temperature resistant blower to solve the above problems. Utility Model Content

[0008] The purpose of the present invention is to provide a high temperature resistant fan to solve the problems raised in the above background technology.

[0009] To achieve the above objectives, the present invention provides the following technical solutions:

[0010] A high-temperature resistant fan, comprising a base bracket, a fan housing fixedly mounted on the front side of the base bracket, a drive motor fixedly mounted on the rear side of the base bracket, an output shaft of the drive motor rotatably connected to the fan housing, blades disposed within the fan housing, the blades fixedly connected to one end of the output shaft of the drive motor located inside the fan housing, an auxiliary bracket device mounted on the front side of the fan housing, and a quick sealing device mounted on the right side of the fan housing;

[0011] Furthermore, the auxiliary bracket device includes: a multi-stage telescopic assembly, a rotation limiting assembly and a support assembly, the multi-stage telescopic assembly is installed on the left side of the fan housing, the rotation limiting assembly is installed on the multi-stage telescopic assembly, and the support assembly is installed on the rotation limiting assembly;

[0012] Furthermore, the multi-stage telescopic assembly includes: a telescopic outer shell, a first telescopic inner shell, a second telescopic inner shell, a telescopic plate and a limiting assembly, the telescopic outer shell is fixedly mounted on the left side of the fan shell, the first telescopic inner shell is slidably connected in the telescopic outer shell, the second telescopic inner shell is slidably connected in the first telescopic inner shell, the telescopic plate is slidably connected in the second telescopic inner shell, and the telescopic outer shell, the first telescopic inner shell, the second telescopic inner shell and the telescopic plate are all provided with a limiting assembly;

[0013] Furthermore, the limiting component includes: a fixed cylinder and an auxiliary roller, the first telescopic inner shell, the second telescopic inner shell and the left side wall of the telescopic plate are fixedly mounted with a plurality of fixed cylinders, the side walls of the telescopic outer shell, the first telescopic inner shell and the second telescopic inner shell are provided with a plurality of strip openings, each of the strip openings is provided with a fixed cylinder for limiting the sliding distance of the first telescopic inner shell, the second telescopic inner shell and the telescopic plate;

[0014] Furthermore, the rotation limiting assembly includes: a special-shaped rotating plate and an extension rod, wherein the special-shaped rotating plate is rotatably connected to the end of the telescopic plate away from the second telescopic inner shell via a rotating shaft, and the extension rod is fixedly mounted on the left side wall of the telescopic outer shell, and the extension rod is used to limit the rotation angle of the special-shaped rotating plate;

[0015] Furthermore, the support assembly includes: a sliding rod, a connecting plate and a first fixing screw, a plurality of the sliding rods are slidably connected to the end of the special-shaped rotating plate away from the telescopic plate, the front and rear sides of the sliding rod are fixedly installed with connecting plates, the rear connecting plate of the sliding rod is threadedly connected to the first fixing screw, and the end of the first fixing screw away from the rear connecting plate of the sliding rod is threadedly connected to the fan housing, so as to quickly fix the connecting plate so that the support assembly and the limiting assembly do not rotate;

[0016] Furthermore, the rapid sealing device includes: an arc-shaped plate, an L-shaped plate, a second fixing screw and a measuring assembly, wherein the two arc-shaped plates are rotatably connected to the fan housing via a rotating shaft, an L-shaped plate is fixedly mounted on each of the arc-shaped plate rotating shafts, and the second fixing screw is threadedly connected to the two L-shaped plates to fix the L-shaped plates so that they do not rotate;

[0017] Furthermore, the measuring component includes: a sealing strip, a wind pressure sensor and a sealing ring. The sealing strip is fixedly mounted on the arc plate, the wind pressure sensor is fixedly mounted on the side wall of the arc plate, and the sealing ring is fixedly mounted on both ends of the arc plate rotating shaft to seal the rotating shaft to prevent air leakage.

[0018] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. The present invention realizes multi-stage telescopic extension by moving the telescopic plate in the second telescopic inner shell, reducing friction when the telescopic plate moves by the auxiliary roller, and limiting the maximum distance the telescopic plate moves in the second telescopic inner shell by the fixed cylinder. Similarly, the second telescopic inner shell moves in the first telescopic inner shell, and the first telescopic inner shell moves in the telescopic outer shell, thereby realizing multi-stage telescopic extension and extending the telescopic distance; the multi-stage telescopic assembly telescopes and drives the special-shaped rotating plate to move in the direction away from the blade, and then rotates the special-shaped rotating plate. The left side of the special-shaped rotating plate is blocked by the extension rod, so that the special-shaped rotating plate rotates to a fixed position and stops rotating, and then the multi-stage telescopic assembly telescopes and drives the special-shaped rotating plate to move in the direction close to the blade. The supporting assembly on the special-shaped rotating plate supports the blade. The blade is removed and the blade is moved out of the fan casing by the multi-stage telescopic assembly, which is conducive to assisting the removal of the blade;

[0019] 2. Unscrew the second fixing screw from the L-shaped plate and rotate the L-shaped plate. The rotation of the L-shaped plate drives the arc plate to rotate. The rotation of the arc plate seals the air outlet of the fan housing. The sealing ring is used to seal the rotating shaft to prevent air leakage. It is used to seal the rotating shaft to prevent air leakage, which is conducive to quickly sealing the air outlet of the fan housing. At the same time, the fan wind pressure is measured to quickly check the air tightness of the housing. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model Figure 1 ;

[0021] Figure 2 This is a schematic diagram of the three-dimensional structure of the utility model Figure 2 ;

[0022] Figure 3 This is the front view of the utility model;

[0023] Figure 4 AA is a cross-sectional view of the front view of the present invention;

[0024] Figure 5This is a schematic structural diagram of the auxiliary bracket device of the utility model;

[0025] Figure 6 This is a structural schematic diagram of the auxiliary bracket device of the utility model in a partially disassembled state.

[0026] In the figure: 1. base bracket; 2. fan casing; 3. drive motor; 4. blades; 5. auxiliary bracket device; 51. telescopic outer shell; 52. first telescopic inner shell; 53. second telescopic inner shell; 54. telescopic plate; 55. fixed cylinder; 56. auxiliary roller; 57. special-shaped rotating plate; 58. extension rod; 59. sliding rod; 510. connecting plate; 511. first fixing screw; 6. quick sealing device; 61. arc plate; 62. L-shaped plate; 63. second fixing screw; 64. sealing strip; 65. wind pressure sensor; 66. sealing ring. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] The terms “left,” “right,” “front,” “back,” “up,” and “down” mentioned in the following description are oriented in the viewing direction of the front view.

[0029] Example 1: In some embodiments, please refer to the accompanying drawings of the specification. Figures 1-6 A high-temperature resistant fan comprises a base bracket 1, a fan casing 2 is fixedly mounted on the front side of the base bracket 1, a drive motor 3 is fixedly mounted on the rear side of the base bracket 1, the output shaft of the drive motor 3 is rotatably connected to the fan casing 2, blades 4 are arranged inside the fan casing 2, the blades 4 are fixedly connected to one end of the output shaft of the drive motor 3 located inside the fan casing 2, an auxiliary bracket device 5 is installed on the front side of the fan casing 2, and a quick sealing device 6 is installed on the right side of the fan casing 2.

[0030] The auxiliary bracket device 5 is used to assist in the disassembly of the blades 4. After the blades 4 are disassembled, tools are needed to assist in taking them out of the fan casing 2. Generally, the fan blades 4 are made of stainless steel and are heavy, requiring multiple people to use auxiliary tools to remove them from the fan. After cleaning or maintenance, they are put back into the fan casing 2. The auxiliary bracket device 5 can assist in supporting the blades 4 after they are disassembled, and at the same time assist in moving them to move the blades 4 out of the fan. The quick sealing device 6 can seal the fan outlet, start the fan, and quickly measure the wind pressure at the fan outlet, thereby achieving the function of detecting the air tightness of the fan casing 2.

[0031] The auxiliary bracket device 5 includes: a multi-stage telescopic component, a rotation limiting component and a support component. The multi-stage telescopic component is installed on the left side of the fan housing 2, the rotation limiting component is installed on the multi-stage telescopic component, and the support component is installed on the rotation limiting component.

[0032] The multi-stage telescopic component performs multi-stage telescopic extension to move the rotation limiting component and the support component to move them close to the blade 4 and support the blade 4. After the blade 4 is removed, the multi-stage telescopic component performs multi-stage telescopic extension again to move the blade 4 to the fan casing 2, which is helpful to assist in removing the blade 4.

[0033] The multi-stage telescopic assembly includes: a telescopic outer shell 51, a first telescopic inner shell 52, a second telescopic inner shell 53, a telescopic plate 54 and a limiting assembly. The telescopic outer shell 51 is fixedly installed on the left side of the fan housing 2, the first telescopic inner shell 52 is slidably connected in the telescopic outer shell 51, the second telescopic inner shell 53 is slidably connected in the first telescopic inner shell 52, and the telescopic plate 54 is slidably connected in the second telescopic inner shell 53. The telescopic outer shell 51, the first telescopic inner shell 52, the second telescopic inner shell 53 and the telescopic plate 54 are all provided with a limiting assembly.

[0034] The limiting component includes: a fixed cylinder 55 and an auxiliary roller 56. A plurality of fixed cylinders 55 are fixedly installed on the left side walls of the first telescopic inner shell 52, the second telescopic inner shell 53 and the telescopic plate 54. The side walls of the telescopic outer shell 51, the first telescopic inner shell 52 and the second telescopic inner shell 53 are provided with a plurality of strip openings, and a fixed cylinder 55 is provided in each of the strip openings for limiting the sliding distance of the first telescopic inner shell 52, the second telescopic inner shell 53 and the telescopic plate 54.

[0035] The telescopic plate 54 moves in the second telescopic inner shell 53, and the friction is reduced when it moves by the auxiliary roller 56. The maximum distance that the telescopic plate 54 can move in the second telescopic inner shell 53 is limited by the fixed cylinder 55. Similarly, the second telescopic inner shell 53 moves in the first telescopic inner shell 52, and the first telescopic inner shell 52 moves in the telescopic outer shell 51, thereby realizing multi-stage telescopic expansion and contraction, and increasing the telescopic distance.

[0036] The rotation limiting assembly includes: a special-shaped rotating plate 57 and an extension rod 58. The special-shaped rotating plate 57 is rotatably connected to the end of the telescopic plate 54 away from the second telescopic inner shell 53 through a rotating shaft. The extension rod 58 is fixedly installed on the left side wall of the telescopic outer shell 51. The extension rod 58 is used to limit the rotation angle of the special-shaped rotating plate 57.

[0037] The multi-stage telescopic component telescopes and drives the special-shaped rotating plate 57 to move away from the blade 4, and then the special-shaped rotating plate 57 is rotated. The left side of the special-shaped rotating plate 57 is blocked by the extension rod 58, so that the special-shaped rotating plate 57 rotates to a fixed position and stops rotating. Then the multi-stage telescopic component telescopes and drives the special-shaped rotating plate 57 to move toward the blade 4.

[0038] The support assembly includes: a sliding rod 59, a connecting plate 510 and a first fixing screw 511. Multiple sliding rods 59 are slidably connected to the end of the special-shaped rotating plate 57 away from the telescopic plate 54. The connecting plates 510 are fixedly installed on the front and rear sides of the sliding rod 59. The first fixing screw 511 is threadedly connected to the connecting plate 510 on the rear side of the sliding rod 59. The end of the first fixing screw 511 away from the connecting plate 510 on the rear side of the sliding rod 59 is threadedly connected to the fan casing 2, and is used to quickly fix the connecting plate 510 so that the support assembly and the limiting assembly do not rotate.

[0039] Unscrew the first fixing screw 511 from the fan casing 2, push the special-shaped rotating plate 57 to move away from the blade 4, rotate the special-shaped rotating plate 57, the left side of the special-shaped rotating plate 57 is blocked by the extension rod 58, then push the special-shaped rotating plate 57 to move toward the blade 4, the special-shaped rotating plate 57 moves toward the blade 4, and drives the sliding rod 59 and the connecting plate 510 to move toward the blade 4. The sliding rod 59 and the connecting plate 510 support the blade 4, remove the blade 4, and move the blade 4 out of the fan casing 2 through the multi-stage telescopic assembly.

[0040] Embodiment 2: In some embodiments, as Figures 1-6 As a preferred embodiment of the present utility model, the quick sealing device 6 includes: an arc-shaped plate 61, an L-shaped plate 62, a second fixing screw 63 and a measuring component. The two arc-shaped plates 61 are rotatably connected to the fan housing 2 through a rotating shaft. An L-shaped plate 62 is fixedly mounted on the rotating shaft of each arc-shaped plate 61. The second fixing screw 63 is threadedly connected to the two L-shaped plates 62 to fix the L-shaped plates 62 so that they do not rotate.

[0041] Unscrew the second fixing screw 63 from the L-shaped plate 62 and rotate the L-shaped plate 62. The rotation of the L-shaped plate 62 drives the arc plate 61 to rotate. The rotation of the arc plate 61 seals the air outlet of the fan housing 2, which is conducive to quickly sealing the air outlet of the fan housing 2.

[0042] The measuring component includes: a sealing strip 64, a wind pressure sensor 65 and a sealing ring 66. The sealing strip 64 is fixedly mounted on the arc plate 61, the wind pressure sensor 65 is fixedly mounted on the side wall of the arc plate 61, and the sealing ring 66 is fixedly mounted on both ends of the rotating shaft of the arc plate 61 to seal the rotating shaft to prevent air leakage. The sealing strip 64 is used to seal the gaps between the arc plates 61 and the gaps between the arc plates 61 and the fan casing 2. The wind pressure sensor 65 is electrically connected to an external controller to measure the wind pressure at the fan outlet.

[0043] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements will not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high temperature resistant fan, comprising a base support (1), characterized in that: A fan housing (2) is fixedly mounted on the front side of the base bracket (1), a drive motor (3) is fixedly mounted on the rear side of the base bracket (1), an output shaft of the drive motor (3) is rotatably connected to the fan housing (2), a blade (4) is provided inside the fan housing (2), and the blade (4) is fixedly connected to one end of the output shaft of the drive motor (3) located inside the fan housing (2), an auxiliary bracket device (5) is mounted on the front side of the fan housing (2), and a quick sealing device (6) is mounted on the right side of the fan housing (2).

2. The high temperature resistant blower according to claim 1, characterized in that: The auxiliary support device (5) comprises: a multi-stage telescopic assembly, a rotation limiting assembly and a support assembly, wherein the multi-stage telescopic assembly is mounted on the left side of the fan housing (2), the rotation limiting assembly is mounted on the multi-stage telescopic assembly, and the support assembly is mounted on the rotation limiting assembly.

3. The high temperature resistant blower according to claim 2, characterized in that: The multi-stage telescopic assembly comprises: a telescopic outer shell (51), a first telescopic inner shell (52), a second telescopic inner shell (53), a telescopic plate (54) and a limiting assembly. The telescopic outer shell (51) is fixedly mounted on the left side of the fan outer shell (2), the first telescopic inner shell (52) is slidably connected in the telescopic outer shell (51), the second telescopic inner shell (53) is slidably connected in the first telescopic inner shell (52), the telescopic plate (54) is slidably connected in the second telescopic inner shell (53), and the telescopic outer shell (51), the first telescopic inner shell (52), the second telescopic inner shell (53) and the telescopic plate (54) are all provided with a limiting assembly.

4. The high temperature resistant blower according to claim 3, characterized in that: The limiting assembly comprises: a fixed cylinder (55) and an auxiliary roller (56); a plurality of fixed cylinders (55) are fixedly mounted on the left side walls of the first telescopic inner shell (52), the second telescopic inner shell (53) and the telescopic plate (54); a plurality of strip-shaped openings are provided on the side walls of the telescopic outer shell (51), the first telescopic inner shell (52) and the second telescopic inner shell (53); and a fixed cylinder (55) is provided in each of the strip-shaped openings.

5. The high temperature resistant blower according to claim 4, characterized in that: The rotation limiting assembly comprises: a special-shaped rotating plate (57) and an extension rod (58); the special-shaped rotating plate (57) is rotatably connected to an end of the telescopic plate (54) away from the second telescopic inner shell (53) via a rotating shaft; and the extension rod (58) is fixedly mounted on the left side wall of the telescopic outer shell (51).

6. The high temperature resistant blower according to claim 5, characterized in that: The support assembly includes: a sliding rod (59), a connecting plate (510) and a first fixing screw (511); a plurality of the sliding rods (59) are slidably connected to one end of the special-shaped rotating plate (57) away from the telescopic plate (54); the connecting plates (510) are fixedly installed on both the front and rear sides of the sliding rod (59); the first fixing screw (511) is threadedly connected to the connecting plate (510) on the rear side of the sliding rod (59); and the end of the first fixing screw (511) away from the connecting plate (510) on the rear side of the sliding rod (59) is threadedly connected to the fan housing (2).

7. The high temperature resistant blower according to claim 6, characterized in that: The quick sealing device (6) comprises: an arc-shaped plate (61), an L-shaped plate (62), a second fixing screw (63) and a measuring assembly. The two arc-shaped plates (61) are rotatably connected to the fan housing (2) via a rotating shaft. An L-shaped plate (62) is fixedly mounted on the rotating shaft of each arc-shaped plate (61). The second fixing screw (63) is threadedly connected to the two L-shaped plates (62).

8. The high temperature resistant blower according to claim 7, characterized in that: The measuring assembly comprises: a sealing strip (64), a wind pressure sensor (65) and a sealing ring (66); the sealing strip (64) is fixedly mounted on the arc plate (61); the wind pressure sensor (65) is fixedly mounted on the side wall of the arc plate (61); and the sealing ring (66) is fixedly mounted on both ends of the rotating shaft of the arc plate (61).

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