A back cover flip type structure fan

Abstract

The utility model discloses a back cover turns over formula structure fan relates to ventilation fan technical field, including the tubal body, including the bottom plate, the bottom plate top fixedly connected with the installation frame, the installation frame is fixedly connected with the volute shell in, the back of volute shell is equipped with the opening, the volute shell's opening place articulates to have the sealing board, the back of sealing board is connected with drive assembly, the volute shell inside is equipped with exhaust component. When using, through setting up the sealing board, sealing board articulates in the opening at the back of volute shell, and drive assembly and exhaust component all are fixedly connected on the sealing board, so can open the sealing board while rotating, and the blade is directly rotated and removed from the volute shell, thereby when cleaning the blade, do not need to disassemble the fan, improve the cleaning speed of the paint medium that avoids the blade to adhere, shorten the time that blade cleaning work occupies, thereby effectively improved the work efficiency of fan.

Description

Technical Field

[0001] This utility model relates to the field of ventilation fan technology, and in particular to a fan with a rear cover flip-up structure. Background Technology

[0002] In the coating industry, fans are an important type of environmental protection equipment. In coating and painting equipment sets, fans directly act as exhaust and conveying devices for excess gases in the painting environment. They can replace the gases in the spray booth to prevent excessive oil and gas content in the air from causing poisoning problems for workers in the booth.

[0003] Because paint is sticky, as the fan operates for longer, paint will inevitably stick to the surface of the fan blades, causing the blades to become unbalanced, prone to vibration, damaging the equipment and affecting its service life. Therefore, it is necessary to clean the excess residue and sticky medium inside the fan blades regularly.

[0004] However, since the existing fan casing is a closed spiral casing with the blades inside, cleaning the blades requires a certain period of downtime and the removal of some equipment components, which seriously affects production efficiency.

[0005] To solve the above problems, there is an urgent need for a fan that can quickly and effectively clean the blades. Utility Model Content

[0006] The purpose of this utility model is to provide a rear cover flip-type structure fan to solve the problem mentioned in the background art that when cleaning and maintaining the blades of existing ventilation fans used in paint shops, it is necessary to disassemble some components of the fan before cleaning the blades, which reduces the speed of blade cleaning and thus reduces the efficiency of painting.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a rear cover flip-type structure fan, including a base plate, an installation frame fixedly connected to the top of the base plate, a volute shell fixedly connected inside the installation frame, an opening on the back of the volute shell, a sealing plate hinged to the opening of the volute shell, a drive assembly connected to the back of the sealing plate, an exhaust assembly inside the volute shell, and the drive assembly and the exhaust assembly connected together;

[0008] The exhaust assembly includes multiple blades arranged in a ring;

[0009] The drive assembly is used to drive multiple blades to rotate so that air in the paint shop is discharged through the volute casing.

[0010] Preferably, the drive assembly includes a first motor and a mounting box fixedly connected to the back of the sealing plate. The mounting box is provided with a transmission mechanism. The output end of the first motor passes through the front sidewall of the mounting box and is connected to the input end of the transmission mechanism. The drive assembly also includes a drive shaft fixedly connected to the back of the sealing plate. The input end of the drive shaft passes through the front sidewall of the mounting box and is connected to the output end of the transmission mechanism. The output end of the drive shaft passes through the sealing plate and is connected to the exhaust assembly inside the volute housing.

[0011] Preferably, a horizontal plate is fixedly connected to the back of the sealing plate, and two sets of reinforcing ribs are symmetrically fixedly connected between the top and bottom of the horizontal plate and the back of the sealing plate. The first motor is fixedly connected to the bottom of the horizontal plate, the mounting box is fixedly connected to the back of the horizontal plate, and the drive shaft is connected to the top of the horizontal plate. The advantage of this arrangement is that the drive assembly can be more securely connected to the back of the sealing plate, ensuring that the exhaust assembly and the drive assembly can work stably and reliably, thus improving the reliability of the fan.

[0012] Preferably, a collection box is placed on top of the base plate, and a limiting component is connected to the mounting frame. The limiting component is used to limit the opening of the sealing plate. The collection box is located directly below the sealing plate and is used to collect the paint medium cleaned from the blades. The advantage of this arrangement is that the paint medium cleaned from the blades can be collected in a concentrated manner through the collection box, avoiding the paint medium from falling directly onto the base plate and bottom surface, which would cause trouble for the subsequent cleaning and transportation of the paint medium, and improving the reliability and practicality of the fan.

[0013] Preferably, the limiting component includes a first vertical plate fixedly connected to the left side of the mounting frame, a first electric telescopic rod fixedly connected to the back of the first vertical plate, a first straight rod fixedly connected to the output end of the first electric telescopic rod, and a plurality of mounting plates fixedly sleeved from top to bottom on the outer circumference of the first straight rod. The tops of the plurality of mounting plates are each arc-shaped and fixedly connected to a plurality of limiting plates. The limiting component also includes a plurality of flat plates fixedly connected from top to bottom, each of the flat plates having a limiting groove on its top. The limiting plates on the mounting plates can be movably inserted into a plurality of... The advantage of this design is that when the sealing plate is rotated open to allow the blades to be rotated out of the volute housing, the limiting groove aligns with the limiting plate. Then, the first electric telescopic rod is activated, which drives the limiting plate upward through the mounting plate until it inserts into the corresponding limiting groove, thus limiting the sealing plate and preventing it from shaking during the blade cleaning process. This ensures that the blade cleaning work can be completed smoothly and also prevents the sealing plate from causing the drive assembly and exhaust assembly to swing, which could cause collision injuries to surrounding personnel. This improves the practicality and safety of the fan.

[0014] Preferably, an auxiliary collection component is connected to the mounting frame, which assists the collection box in collecting the cleaned paint medium more thoroughly.

[0015] Preferably, the auxiliary collection component includes a second vertical plate fixedly connected to the right side of the mounting frame. A second electric telescopic rod is fixedly connected to the back of the second vertical plate. A second straight rod is fixedly connected to the output end of the second electric telescopic rod. A pull plate is fixedly connected to the bottom end of the second straight rod. Two first pull rods are symmetrically fixedly connected to the bottom of the pull plate and the bottom of the lowest mounting plate. The bottom ends of the two first pull rods are fixedly connected to the top of the collection box. Two second pull rods are symmetrically fixedly connected to the bottom of the pull plate and the bottom of the lowest mounting plate. The bottom ends of the two second pull rods are fixedly connected to the top of the collection box. The advantage of this arrangement is that by retracting the first and second electric telescopic rods, the two first pull rods and the two second pull rods can be moved upward. This limits the sealing plate while pulling the collection box upward, allowing the collection box to fit more closely to the bottom of the drive component. This allows for more thorough and comprehensive collection of the paint medium cleaned from the blades, improving the collection effect of the cleaned paint medium and further enhancing the practicality and reliability of the fan.

[0016] In summary, the technical effects and advantages of this utility model are as follows:

[0017] 1. In this utility model, by setting a sealing plate, the sealing plate is hinged to the opening on the back of the volute housing, and the drive assembly and exhaust assembly are both fixedly connected to the sealing plate. In this way, the blades can be rotated and moved directly out of the volute housing while the sealing plate is rotated to open. Thus, the fan does not need to be disassembled when cleaning the blades, which improves the cleaning speed of the paint medium adhering to the blades and shortens the time occupied by the blade cleaning work, thereby effectively improving the working efficiency of the fan.

[0018] 2. In this utility model, by setting a limiting component, when the sealing plate is rotated open to allow the blades to be rotated out of the volute shell, the limiting groove is aligned with the limiting plate. Then, the first electric telescopic rod is activated, which drives the limiting plate to move upward through the mounting plate until it is inserted into the corresponding limiting groove, thereby limiting the sealing plate and preventing it from shaking during the blade cleaning process. This ensures that the blade cleaning work can be completed smoothly. At the same time, it can prevent the sealing plate from causing the drive component and exhaust component to swing and causing collision injuries to the surrounding personnel, thus improving the practicality and safety of the fan. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a first structural schematic diagram of the present invention;

[0021] Figure 2 This is a schematic diagram of the second structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the third structure of this utility model;

[0023] Figure 4 This is a cross-sectional structural diagram of the present invention;

[0024] Figure 5 In this utility model Figure 2 Enlarged diagram of point A in the diagram.

[0025] In the diagram: 1. Base plate; 2. Mounting frame; 3. Volute housing; 31. Exhaust port; 32. Inlet port; 4. Sealing plate; 41. Horizontal plate; 5. Drive assembly; 51. First motor; 52. Mounting box; 53. Drive shaft; 6. Exhaust assembly; 61. Rotating shaft; 62. Turntable; 63. Blade; 7. Collection box; 8. Limiting assembly; 81. First vertical plate; 82. First electric telescopic rod; 83. First straight rod; 84. Mounting plate; 85. Limiting plate; 86. Flat plate; 87. Limiting groove; 9. Auxiliary collection assembly; 91. Second electric telescopic rod; 92. Second straight rod; 93. Pull plate; 94. First pull rod; 95. Second pull rod. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0027] Please refer to Figures 1-5The fan shown is a rear cover flip-type structure, including a base plate 1, an installation frame 2 fixedly connected to the top of the base plate 1, a volute housing 3 fixedly connected inside the installation frame 2, an opening on the back of the volute housing 3, a sealing plate 4 hinged to the opening of the volute housing 3, a drive assembly 5 connected to the back of the sealing plate 4, an exhaust assembly 6 provided inside the volute housing 3, and the drive assembly 5 and the exhaust assembly 6 connected to each other.

[0028] The top of the volute-shaped outer casing 3 is connected to an exhaust port 31, and the front of the volute-shaped outer casing 3 is connected to an air inlet 32.

[0029] The exhaust assembly 6 includes a plurality of blades 63 arranged in a ring. The exhaust assembly 6 also includes a rotating shaft 61, the rear end of which is fixedly connected to the output end of the drive shaft 53, and a turntable 62 is fixedly sleeved on the front end of the rotating shaft 61, with the plurality of blades 63 fixedly connected to the front surface of the turntable 62;

[0030] The drive assembly 5 is used to drive multiple blades 63 to rotate so as to exhaust air in the paint shop through the volute housing 3.

[0031] refer to Figure 2 and Figure 3 The drive assembly 5 includes a first motor 51 fixedly connected to the back of the sealing plate 4 and a mounting box 52. The mounting box 52 is provided with a transmission mechanism. The output end of the first motor 51 passes through the front side wall of the mounting box 52 and is connected to the input end of the transmission mechanism. The drive assembly 5 also includes a drive shaft 53 fixedly connected to the back of the sealing plate 4. The input end of the drive shaft 53 passes through the front side wall of the mounting box 52 and is connected to the output end of the transmission mechanism. The output end of the drive shaft 53 passes through the sealing plate 4 and is connected to the exhaust assembly 6 inside the volute housing 3.

[0032] The drive shaft 53 is provided with a protective cover to protect it from external interference.

[0033] refer to Figure 2 and Figure 3 A horizontal plate 41 is fixedly connected to the back of the sealing plate 4. Two sets of reinforcing ribs are symmetrically fixedly connected between the top and bottom of the horizontal plate 4 and the back of the sealing plate 4. The first motor 51 is fixedly connected to the bottom of the horizontal plate 41. The mounting box 52 is fixedly connected to the back of the horizontal plate 41. The drive shaft 53 is connected to the top of the horizontal plate 41.

[0034] Specifically, this allows the drive assembly 5 to be more securely connected to the back of the sealing plate 4, ensuring that the exhaust assembly 6 and the drive assembly 5 can operate stably and reliably, thus improving the reliability of the fan.

[0035] refer to Figures 1-4A collection box 7 is placed on top of the base plate 1. A limiting component 8 is connected to the mounting frame 2. The limiting component 8 is used to limit the opening of the sealing plate 4. The collection box 7 is located directly below the sealing plate 4 and is used to collect the paint medium cleaned off the blade 63.

[0036] Specifically, the collection box 7 can collect the paint medium cleaned off the blades 63, preventing the paint medium from falling directly onto the base plate 1 and the bottom surface, which would cause trouble for the subsequent cleaning and transportation of the paint medium, thus improving the reliability and practicality of the fan.

[0037] refer to Figures 2-5 The limiting component 8 includes a first vertical plate 81 fixedly connected to the left side of the mounting frame 2. A first electric telescopic rod 82 is fixedly connected to the back of the first vertical plate 81. A first straight rod 83 is fixedly connected to the output end of the first electric telescopic rod 82. Several mounting plates 84 are fixedly sleeved from top to bottom on the outer circumference of the first straight rod 83. Several limiting plates 85 are fixedly connected to the top of each of the mounting plates 84 in an arc shape. The limiting component 8 also includes several flat plates 86 fixedly connected from top to bottom. Each of the flat plates 86 has a limiting groove 87 on its top. The limiting plates 85 on the mounting plates 84 can be movably inserted into the limiting grooves 87 on the flat plates 86.

[0038] Specifically, when the sealing plate 4 is rotated open so that the blade 63 is rotated out of the volute housing 3, the limiting groove 87 is aligned with the limiting plate 85. Then, the first electric telescopic rod 82 is activated to drive the limiting plate 85 upward through the mounting plate 84 until it is inserted into the corresponding limiting groove 87. This limits the sealing plate 4, preventing it from shaking during the cleaning of the blade 63 and ensuring that the cleaning of the blade 63 can be completed smoothly. At the same time, it can prevent the sealing plate 4 from causing the drive assembly 5 and the exhaust assembly 6 to swing and cause collision injuries to the surrounding personnel, thus improving the practicality and safety of the fan.

[0039] refer to Figure 2 and Figure 3 An auxiliary collection component 9 is connected to the mounting frame 2. The auxiliary collection component 9 is used to help the collection box 7 collect the cleaned paint medium more fully and thoroughly.

[0040] refer to Figure 2 and Figure 3The auxiliary collection component 9 includes a second vertical plate fixedly connected to the right side of the mounting frame 2. A second electric telescopic rod 91 is fixedly connected to the back of the second vertical plate. A second straight rod 92 is fixedly connected to the output end of the second electric telescopic rod 91. A pull plate 93 is fixedly connected to the bottom end of the second straight rod 92. Two first pull rods 94 are symmetrically fixedly connected to the bottom of the pull plate 93 and the bottom of the mounting plate 84 located at the lowest side. The bottom ends of the two first pull rods 94 are fixedly connected to the top of the collection box 7. Two second pull rods 95 are symmetrically fixedly connected to the bottom of the pull plate 93 and the bottom of the mounting plate 84 located at the lowest side. The bottom ends of the two second pull rods 95 are fixedly connected to the top of the collection box 7.

[0041] Specifically, by retracting the first electric telescopic rod 82 and the second electric telescopic rod 91, the two first pull rods 94 and the two second pull rods 95 are moved upward. This limits the sealing plate 4 while pulling the collection box 7 upward, allowing the collection box 7 to fit more closely to the bottom of the drive assembly 5. This allows for more thorough and comprehensive collection of the paint medium cleaned from the blades 63, improving the collection effect of the cleaned paint medium and further enhancing the practicality and reliability of the fan.

[0042] Working principle: When it is necessary to clean the paint medium adhering to the surface of the blade 63, the sealing plate 4 is rotated open from the opening. At this time, the blade 63 will rotate out of the volute housing 3 along with the sealing plate 4.

[0043] Then, the multiple limiting slots 87 are positioned directly above the multiple limiting plates 85. Then, the first electric telescopic rod 82 is activated, which drives the limiting plate 85 upward through the mounting plate 84 until it is inserted into the corresponding limiting slot 87. This limits the sealing plate 4, preventing it from shaking during the cleaning of the blades 63. This ensures that the cleaning of the blades 63 can be completed smoothly. At the same time, it prevents the sealing plate 4 from causing the drive assembly 5 and the exhaust assembly 6 to swing and cause collision injuries to the surrounding personnel, thus improving the practicality and safety of the fan.

[0044] At the same time, each limiting groove 87 can be aligned with different limiting plates 85 on the corresponding mounting plate 84 as needed, so that the sealing plate 4 is limited and fixed at different opening angles.

[0045] Furthermore, while limiting the sealing plate 4, the first electric telescopic rod 82 and the second electric telescopic rod 91 retract to drive the two first pull rods 94 and the two second pull rods 95 to move upward. The two first pull rods 94 and the two second pull rods 95 can drive the collection box 7 to move upward, so that the collection box 7 can be closer to the bottom of the drive assembly 5. This allows for more complete and comprehensive collection of the paint medium cleaned from the blades 63, improving the collection effect of the cleaned paint medium and further enhancing the practicality and reliability of the fan.

[0046] Finally, it should be noted that the above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing 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. A rear cover flip-type fan, comprising a base plate (1), characterized in that: The base plate (1) is fixedly connected to the top of the mounting frame (2), and the mounting frame (2) is fixedly connected to the volute shell (3). The back of the volute shell (3) is provided with an opening, and a sealing plate (4) is hinged to the opening of the volute shell (3). A drive assembly (5) is connected to the back of the sealing plate (4). An exhaust assembly (6) is provided inside the volute shell (3), and the drive assembly (5) and the exhaust assembly (6) are connected to each other. The exhaust assembly (6) includes a plurality of blades (63) arranged in a ring; The drive assembly (5) is used to drive multiple blades (63) to rotate so as to exhaust air in the paint shop through the volute casing (3).

2. The rear cover flip-type fan according to claim 1, characterized in that: The drive assembly (5) includes a first motor (51) fixedly connected to the back of the sealing plate (4) and a mounting box (52). The mounting box (52) is provided with a transmission mechanism. The output end of the first motor (51) passes through the front side wall of the mounting box (52) and is connected to the input end of the transmission mechanism. The drive assembly (5) also includes a drive shaft (53) fixedly connected to the back of the sealing plate (4). The input end of the drive shaft (53) passes through the front side wall of the mounting box (52) and is connected to the output end of the transmission mechanism. The output end of the drive shaft (53) passes through the sealing plate (4) and is connected to the exhaust assembly (6) inside the volute housing (3).

3. A rear cover flip-type fan according to claim 2, characterized in that: A horizontal plate (41) is fixedly connected to the back of the sealing plate (4). Two sets of reinforcing ribs are symmetrically fixedly connected between the top and bottom of the horizontal plate (41) and the back of the sealing plate (4). The first motor (51) is fixedly connected to the bottom of the horizontal plate (41). The mounting box (52) is fixedly connected to the back of the horizontal plate (41). The transmission shaft (53) is connected to the top of the horizontal plate (41).

4. A rear cover flip-type fan according to claim 3, characterized in that: A collection box (7) is placed on top of the base plate (1), and a limiting component (8) is connected to the mounting frame (2). The limiting component (8) is used to limit the opening of the sealing plate (4). The collection box (7) is located directly below the sealing plate (4) and is used to collect the paint medium cleaned off the blade (63).

5. A rear cover flip-type fan according to claim 4, characterized in that: The limiting component (8) includes a first vertical plate (81) fixedly connected to the left side of the mounting frame (2). A first electric telescopic rod (82) is fixedly connected to the back of the first vertical plate (81). A first straight rod (83) is fixedly connected to the output end of the first electric telescopic rod (82). Several mounting plates (84) are fixedly sleeved from top to bottom on the outer circumference of the first straight rod (83). Several limiting plates (85) are fixedly connected to the top of the several mounting plates (84) in an arc shape. The limiting component (8) also includes several flat plates (86) fixedly connected from top to bottom. A limiting groove (87) is opened on the top of the several flat plates (86). The limiting plates (85) on the several mounting plates (84) can be movably inserted into the limiting grooves (87) on the several flat plates (86).

6. A rear cover flip-type fan according to claim 5, characterized in that: An auxiliary collection component (9) is connected to the mounting frame (2), which is used to help the collection box (7) collect the cleaned paint medium more fully and thoroughly.

7. A rear cover flip-type fan according to claim 6, characterized in that: The auxiliary collection component (9) includes a second vertical plate fixedly connected to the right side of the mounting frame (2). A second electric telescopic rod (91) is fixedly connected to the back of the second vertical plate. A second straight rod (92) is fixedly connected to the output end of the second electric telescopic rod (91). A pull plate (93) is fixedly connected to the bottom end of the second straight rod (92). Two first pull rods (94) are symmetrically fixedly connected to the bottom of the pull plate (93) and the bottom of the mounting plate (84) located at the lowest side. The bottom ends of the two first pull rods (94) are fixedly connected to the top of the collection box (7). Two second pull rods (95) are symmetrically fixedly connected to the bottom of the pull plate (93) and the bottom of the mounting plate (84) located at the lowest side. The bottom ends of the two second pull rods (95) are fixedly connected to the top of the collection box (7).

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