Compact circulating fan

Abstract

The utility model relates to the technical field of circulating fans, in particular to a compact circulating fan which comprises a shell, an impeller body, an air inlet, an air outlet and a transmission mechanism, the impeller body is installed in the inner wall of the shell, and the air inlet and the air outlet are both formed in the surface of the shell; the transmission mechanism is arranged on the surface of the shell and comprises a support and a transmission motor. The transmission mechanism is arranged, the first bevel gear and the second bevel gear are vertically meshed, so that the transmission motor drives the impeller body to rotate, axial direct connection of the transmission motor is changed into transverse arrangement, the axial length of the fan is reduced, the whole fan is more compact, meanwhile, a protection part is arranged, and the service life of the fan is prolonged. And transmission parts of the first bevel gear and the second bevel gear can be protected, and the overall practicability is improved.

Description

Technical Field

[0001] This utility model relates to the field of circulating fan technology, and in particular to a compact circulating fan. Background Technology

[0002] A circulating fan is a device used to promote the circulation of gas within a specific space. Its core functions are to achieve air circulation, ventilation, and temperature regulation. Its working principle is that the motor drives the impeller to rotate, causing the air to flow in a specific direction and forming a circulating airflow. It is widely used in air conditioning systems (to assist in the distribution of hot and cold air), industrial plants (to remove dust and dissipate heat), agricultural greenhouses (to regulate temperature and humidity), and other scenarios.

[0003] In daily work, it has been found that most existing circulating fans are driven by either a direct connection between the motor and the fan or a combination of a motor and a belt. However, both the mainstream direct connection and belt-driven methods result in an excessively large overall size of the equipment. The direct connection method requires the motor to be axially aligned with the fan, which significantly increases the axial length of the entire machine. While belt drive can achieve vertical transmission, it requires additional space for the installation of pulleys and tensioning devices, resulting in an excessively large radial dimension and affecting subsequent installation. Utility Model Content

[0004] The purpose of this invention is to solve the problem that the mainstream solutions of direct motor connection or motor-fan transmission via belt in the existing technology both lead to excessively large overall equipment size, and to propose a compact circulating fan.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a compact circulating fan, comprising a housing, an impeller body, an air inlet, an air outlet, and a transmission mechanism, wherein the impeller body is installed in the inner wall of the housing, and the air inlet and air outlet are both disposed on the surface of the housing; the transmission mechanism is disposed on the surface of the housing, and the transmission mechanism includes a bracket and a drive motor.

[0006] The bracket is mounted on the surface of the housing, and the drive motor is mounted on the surface of the bracket, arranged vertically. A connecting rod is fixedly connected to the surface of the impeller body, and a bevel gear is fixedly connected to one end of the connecting rod. A bevel gear is fixedly connected to the output end of the drive motor, and the bevel gear meshes with the bevel gear. A protective part is provided on the surface of the housing, including a base plate fixed to the surface of the housing. A protective cover is installed on the base plate by screws, and a protruding plate is fixedly connected to the surface of the base plate. A groove for inserting the protruding plate is opened on the lower surface of the protective cover. By using the above components, and by setting the drive motor vertically, and by driving the connecting rod and impeller body to rotate through the bevel gear and bevel gear, the overall volume can be reduced, making it more compact. At the same time, the base plate, protective cover, and protruding plate cooperate with each other to protect the transmission parts.

[0007] Preferably, the inner wall of the protective cover is rotatably connected to a support shaft, and the surface of the bevel gear is provided with a slot for the support shaft to be inserted. Through the above components, when the protective cover is installed, the support shaft in the protective cover can be inserted into the slot on the surface of the bevel gear, so that the support shaft can achieve a support effect when the bevel gear rotates.

[0008] Preferably, a cover plate is slidably connected to the inner wall of the protective cover, and a handle is fixedly connected to the surface of the cover plate. When it is necessary to apply lubricating oil or clean the bevel gear one and bevel gear two, the cover plate can be moved by the handle, so that the bevel gear one and bevel gear two inside can be operated accordingly.

[0009] Preferably, the cover plate is fixedly connected to a spring on the corresponding side of the inner wall of the protective cover. There are two springs. Through the above-mentioned components, the springs can control the cover plate to reset, while ensuring the stability of the cover plate when closed.

[0010] Preferably, the inner wall of the air inlet on the surface of the housing is provided with an auxiliary device, which includes a filter plate located in the inner wall of the air inlet. The inner wall of the filter plate is provided with multiple sets of mounting parts, and the inner wall of the air inlet is provided with multiple sets of insertion holes for the mounting parts to be inserted. Through the above components, the filter plate can be installed in the inner wall of the air inlet through the mounting parts, thereby achieving the function of interception and filtration.

[0011] Preferably, a convex ring is fixedly connected to the inner wall of the air inlet. Through the above-mentioned components, the convex ring can position the filter plate and also play a supporting role.

[0012] Preferably, the mounting part includes a threaded sleeve that is slidably connected to the inner wall of the filter plate, and a screw is rotatably connected to the inner wall of the filter plate. The screw is threadedly connected to the threaded sleeve, and the threaded sleeve is inserted into the inner wall of the insertion hole. With the above components, during installation, only the screw needs to be rotated, and the screw controls the threaded sleeve to move. The threaded sleeve can be inserted into the insertion hole to achieve the function of installation and positioning.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting up a transmission mechanism, the transmission motor drives the impeller to rotate through the vertical meshing of bevel gear one and bevel gear two. The axial direct connection of the transmission motor is changed to a horizontal arrangement, which reduces the axial length of the fan and makes the whole more compact. At the same time, the protection part can protect the transmission parts of bevel gear one and bevel gear two, improving the overall practicality.

[0015] 2. In this utility model, by pushing the cover plate on the protective cover, bevel gear one and bevel gear two can be cleaned and lubricated.

[0016] 3. In this utility model, by setting auxiliary components, the filter plate is installed in the inner wall of the air inlet through multiple mounting parts, and the convex ring can support the filter plate, so as to effectively intercept the air during air intake and improve the protection effect of the impeller body. Attached Figure Description

[0017] Figure 1 A three-dimensional structural diagram of a compact circulating fan is provided for this utility model;

[0018] Figure 2 This utility model provides a partial structural schematic diagram of a compact circulating fan;

[0019] Figure 3 This utility model provides a partial exploded structural diagram of a compact circulating fan;

[0020] Figure 4 This utility model provides an exploded structural diagram of the protective part of a compact circulating fan;

[0021] Figure 5 This utility model provides a cross-sectional structural diagram of the auxiliary components of a compact circulating fan.

[0022] Legend:

[0023] 1. Shell; 2. Impeller body; 3. Air inlet; 4. Air outlet; 5. Transmission mechanism; 51. Bracket; 52. Drive motor; 53. Protective part; 531. Base plate; 532. Protruding plate; 533. Protective cover; 534. Cover plate; 535. Spring; 536. Handle; 537. Support shaft; 54. Connecting rod; 55. Bevel gear one; 56. Bevel gear two; 57. Slot; 6. Auxiliary device; 61. Filter plate; 62. Threaded sleeve; 63. Screw; 64. Insertion hole; 65. Protruding ring. Detailed Implementation

[0024] Please see Figures 1-5 This utility model provides a technical solution: a compact circulating fan, including a housing 1, an impeller body 2, an air inlet 3, an air outlet 4 and a transmission mechanism 5. The impeller body 2 is installed in the inner wall of the housing 1, and the air inlet 3 and the air outlet 4 are both set on the surface of the housing 1. The transmission mechanism 5 is set on the surface of the housing 1, and the transmission mechanism 5 includes a bracket 51 and a transmission motor 52.

[0025] Specifically, bracket 51 is mounted on the surface of housing 1, drive motor 52 is mounted on the surface of bracket 51 in a vertical arrangement, connecting rod 54 is fixedly connected to the surface of impeller body 2, bevel gear 55 is fixedly connected to one end of connecting rod 54, bevel gear 56 is fixedly connected to the output end of drive motor 52, bevel gear 56 meshes with bevel gear 55, and protective part 53 is provided on the surface of housing 1. Protective part 53 includes base plate 531 fixed to the surface of housing 1, and protective cover 533 is installed on base plate 531 by screws. A protruding plate 532 is fixedly connected to the surface of the base plate 531. A groove for inserting the protruding plate 532 is provided on the lower surface of the protective cover 533. A support shaft 537 is rotatably connected to the inner wall of the protective cover 533. A slot 57 is provided on the surface of the bevel gear 55 for inserting the support shaft 537. A cover plate 534 is slidably connected to the inner wall of the protective cover 533. A handle 536 is fixedly connected to the surface of the cover plate 534. A spring 535 is fixedly connected to the cover plate 534 on the corresponding side of the inner wall of the protective cover 533. There are two springs 535.

[0026] In this implementation scheme: by vertically setting the drive motor 52 and driving the connecting rod 54 and impeller body 2 to rotate through bevel gear 2 56 and bevel gear 1 55, the overall volume can be reduced, making it more compact. At the same time, the base plate 531, protective cover 533 and protruding plate 532 cooperate with each other to protect the transmission parts. When the protective cover 533 is installed, the support shaft 537 in the protective cover 533 can be inserted into the slot 57 on the surface of bevel gear 1 55, so that the support shaft 537 can provide support when bevel gear 1 55 rotates. When it is necessary to apply lubricating oil or clean bevel gear 1 55 and bevel gear 2 56, the cover plate 534 can be moved by the handle 536, so that the internal bevel gear 1 55 and bevel gear 2 56 can be operated accordingly.

[0027] Specifically, an auxiliary device 6 is provided on the inner wall of the air inlet 3 on the surface of the housing 1. The auxiliary device 6 includes a filter plate 61 located in the inner wall of the air inlet 3. The inner wall of the filter plate 61 is provided with multiple sets of mounting parts. The inner wall of the air inlet 3 is provided with multiple sets of insertion holes 64 for the mounting parts to be inserted. The mounting part includes a threaded sleeve 62 that is slidably connected to the inner wall of the filter plate 61. A screw 63 is rotatably connected to the inner wall of the filter plate 61. The screw 63 is threadedly connected to the threaded sleeve 62. The threaded sleeve 62 is inserted into the inner wall of the insertion hole 64. A protruding ring 65 is fixedly connected to the inner wall of the air inlet 3.

[0028] In this implementation scheme: simply rotate the screw 63, and the screw 63 controls the threaded sleeve 62 to move. The threaded sleeve 62 can be inserted into the insertion hole 64 to achieve the function of installation and positioning, thereby achieving the function of interception and filtration. The convex ring 65 can position the filter plate 61 and also serve as a support.

[0029] Working principle: During operation, the drive motor 52 is first turned on, which drives the second bevel gear 56 to rotate. The second bevel gear 56 then drives the first bevel gear 55 and the connecting rod 54 to rotate, thereby controlling the rotation of the impeller body 2 and enabling the entire unit to operate. The drive motor 52 and the impeller use vertical transmission, which reduces the axial length and makes the whole unit more compact. The protective cover 533, together with the base plate 531 and the protruding plate 532, can protect the first bevel gear 55 and the second bevel gear 56. The support shaft 537 is inserted into the slot 57 on the surface of the first bevel gear 55 to achieve... For support, when it is necessary to apply lubricant or clean bevel gear 1 55 and bevel gear 2 56, the cover plate 534 can be moved by the handle 536, so that the bevel gear 1 55 and bevel gear 2 56 inside can be operated accordingly. At the same time, the filter plate 61 can be placed in the inner wall of the air inlet 3. The convex ring 65 can position the filter plate 61 and also play a supporting role. Then, the screw 63 is rotated, and the screw 63 controls the threaded sleeve 62 to move. The threaded sleeve 62 can be inserted into the insertion hole 64 to achieve the installation and positioning function, thereby achieving the interception and filtration function.

Claims

1. A compact circulating fan, comprising a housing (1), an impeller body (2), an air inlet (3), an air outlet (4), and a transmission mechanism (5), characterized in that: The impeller body (2) is installed in the inner wall of the housing (1), and the air inlet (3) and air outlet (4) are both provided on the surface of the housing (1); The transmission mechanism (5) is disposed on the surface of the housing (1), and the transmission mechanism (5) includes a bracket (51) and a transmission motor (52); The bracket (51) is mounted on the surface of the housing (1), and the drive motor (52) is mounted on the surface of the bracket (51) in a vertical arrangement. A connecting rod (54) is fixedly connected to the surface of the impeller body (2). A bevel gear (55) is fixedly connected to one end of the connecting rod (54). A bevel gear (56) is fixedly connected to the output end of the drive motor (52). The bevel gear (56) meshes with the bevel gear (55). A protective part (53) is provided on the surface of the housing (1). The protective part (53) includes a base plate (531) fixed on the surface of the housing (1). A protective cover (533) is installed on the base plate (531) by screws. A protruding plate (532) is fixedly connected to the surface of the base plate (531). A groove for inserting the protruding plate (532) is opened on the lower surface of the protective cover (533).

2. A compact circulating fan according to claim 1, characterized in that: The inner wall of the protective cover (533) is rotatably connected to a support shaft (537), and the surface of the bevel gear (55) is provided with a slot (57) for the support shaft (537) to be inserted.

3. A compact circulating fan according to claim 1, characterized in that: The inner wall of the protective cover (533) is slidably connected to a cover plate (534), and a handle (536) is fixedly connected to the surface of the cover plate (534).

4. A compact circulating fan according to claim 3, characterized in that: The cover plate (534) is fixedly connected to a spring (535) on the side corresponding to the inner wall of the protective cover (533), and there are two springs (535).

5. A compact circulating fan according to claim 1, characterized in that: An auxiliary device (6) is provided on the inner wall of the air inlet (3) on the surface of the housing (1). The auxiliary device (6) includes a filter plate (61) located in the inner wall of the air inlet (3). The inner wall of the filter plate (61) is provided with multiple sets of mounting parts. The inner wall of the air inlet (3) is provided with multiple sets of insertion holes (64) for the mounting parts to be inserted.

6. A compact circulating fan according to claim 5, characterized in that: A protruding ring (65) is fixedly connected to the inner wall of the air inlet (3).

7. A compact circulating fan according to claim 5, characterized in that: The mounting part includes a threaded sleeve (62) that is slidably connected to the inner wall of the filter plate (61). A screw (63) is rotatably connected to the inner wall of the filter plate (61). The screw (63) is threadedly connected to the threaded sleeve (62). The threaded sleeve (62) is inserted into the inner wall of the insertion hole (64).

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