Axial-flow tunnel fan

Abstract

The utility model relates to the technical field of axial flow fans, and discloses an axial flow type tunnel fan which comprises a fan shell, a motor is arranged in the fan shell, a supporting frame is arranged on the outer side of the motor, fan blades are arranged on an output shaft of the motor, and the fan blades are arranged on the output shaft of the motor. The front side and the rear side of the fan shell are each provided with two fixing blocks, a supporting assembly is arranged between the bottoms of the fixing blocks on the front side and the rear side, and a buffering assembly fixedly connected with the supporting assembly is arranged at the bottom of the fan shell. According to the axial-flow type tunnel fan, the supporting base, the extending base, the damper and the buffer spring are arranged and used in cooperation, so that the axial-flow type tunnel fan can effectively carry out supporting, buffering and protection when being subjected to vibration impact, the stability of the fan during operation is guaranteed, mechanical abrasion caused by vibration is reduced, and the service life of the fan is prolonged. And therefore, the stability and the service life of the axial-flow tunnel fan during operation are effectively improved, and the practicability of the device is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of axial flow fans, in particular to an axial flow tunnel fan. Background Art

[0002] After searching, the Chinese patent publication number is CN218407827U, which discloses a tunnel axial flow fan, including a fan casing, a retaining ring is slidably provided on one side of the inner wall of the fan casing, and sliding grooves are provided on both sides of the outer wall of the fan casing. When the utility model is in use, the fan casing is fixed by a first bolt, and at the same time, a spring is sleeved on the outer wall of the first bolt and connected to the fan casing, so that the vibration generated by the fan during operation is effectively buffered. However, the buffering effect of this structure is not satisfactory during actual use, especially in tunnels. Due to the large wind force generated by frequent passage of vehicles, the fan will be subjected to stronger vibration impact during operation. In order to further improve the performance and service life of the fan, an axial flow tunnel fan is proposed to solve the above-mentioned problems. Utility Model Content

[0003] 1. Technical issues to be resolved

[0004] In view of the deficiencies in the prior art, the utility model provides an axial flow tunnel fan, which has the advantages of effectively improving the operating stability and service life of the axial flow tunnel fan, and solves the problems raised in the above-mentioned background technology.

[0005] (II) Technical solution

[0006] In order to achieve the above-mentioned purpose of effectively improving the operating stability and service life of an axial flow tunnel fan, the utility model provides the following technical solutions: an axial flow tunnel fan, comprising a fan housing, a motor is arranged inside the fan housing, a support frame is arranged outside the motor, a fan blade is arranged on the output shaft of the motor, two fixing blocks are arranged on the front and rear sides of the fan housing, a supporting assembly is arranged between the bottoms of the fixing blocks on the front and rear sides, and a buffer assembly fixedly connected to the supporting assembly is arranged at the bottom of the fan housing;

[0007] The support assembly includes a placement plate, a placement plate movably installed under the fan housing, a fixing plate located under the fixing block fixedly installed on the left and right sides of the top of the placement plate, a sleeve extending to the top of the fixing plate fixedly installed inside the fixing plate, a support rod extending to the top of the sleeve and extending to the inside of the fixing block movably installed inside the sleeve, a locking bolt extending to the inside of the fixing block and threadedly connected to the support rod is threadedly connected to the outer side of the fixing block, a limit block located inside the sleeve is fixedly installed at the bottom of the support rod, and a support spring fixedly connected to the sleeve is fixedly installed at the bottom of the limit block.

[0008] Preferably, the buffer assembly includes a support seat, two support seats are fixedly installed on the bottom of the support seat, a mounting groove is opened inside the support seat, an extension seat extending to the bottom of the support seat and fitting with the top of the mounting plate is movably installed inside the mounting groove, fixed feet are fixedly installed on the front and rear sides of the extension seat, a damper fixedly connected to the inner top wall of the mounting groove is fixedly installed on the inner bottom wall of the extension seat, and a buffer spring located on the front and rear sides of the damper is fixedly installed between the inner bottom wall of the extension seat and the inner top wall of the mounting groove.

[0009] Preferably, a limiting groove matched with the sleeve is opened inside the fixing plate, and a limiting bolt extending into the limiting groove and threadedly connected to the sleeve is threadedly connected to the front side of the fixing plate.

[0010] Preferably, the inner top wall of the sleeve is provided with a through hole adapted to the support rod, the opposite sides of the fixing blocks at the front and rear sides are provided with threaded grooves adapted to the locking bolts, and the limit block is fitted with the inner wall of the sleeve.

[0011] Preferably, a groove is formed on the top of the extension seat, and the damper and the buffer spring are fixedly installed in the groove.

[0012] Preferably, the top of the fixing foot is threadedly connected to a fixing bolt threadedly connected to the mounting plate, and the number of the buffer springs is several and symmetrically distributed front to back.

[0013] (III) Beneficial effects

[0014] Compared with the prior art, the utility model provides an axial flow tunnel fan, which has the following beneficial effects:

[0015] The axial-flow tunnel fan, by providing a support seat, an extension seat, a damper and a buffer spring for coordinated use, can effectively provide support and buffer protection when the axial-flow tunnel fan is subjected to vibration impact, thereby ensuring the stability of the fan during operation, and by the coordinated use of a fixing block, a mounting plate, a fixing plate, a sleeve, a support rod, a limit block and a support spring, a stable support is achieved for both ends of the fan, further effectively buffering the vibration generated during the operation of the fan, reducing the mechanical wear caused by the vibration, thereby effectively improving the stability and service life of the axial-flow tunnel fan during operation, improving the practicability of the device, and facilitating use by users. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of the overall structure of the utility model;

[0017] Figure 2 It is a side-view stereoscopic schematic diagram of the overall structure of the utility model;

[0018] Figure 3 It is a three-dimensional schematic diagram of the connection between the structural fixing block and the supporting assembly of the utility model;

[0019] Figure 4 It is a three-dimensional schematic diagram of the connection between the structural support component and the buffer component of the utility model.

[0020] In the figure: 1. fan casing; 2. support frame; 3. motor; 4. fan blades; 5. fixing block; 6. support assembly; 61. mounting plate; 62. fixing plate; 63. sleeve; 64. support rod; 65. locking bolt; 66. limit block; 67. support spring; 7. buffer assembly; 71. support seat; 72. mounting slot; 73. extension seat; 74. fixing foot; 75. damper; 76. buffer spring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1-4, an axial flow tunnel fan, comprising a fan housing 1, a motor 3 is fixedly installed inside the fan housing 1, a support frame 2 is fixedly installed outside the motor 3, a fan blade 4 is fixedly connected to the output shaft of the motor 3, two fixing blocks 5 are fixedly installed on the front and rear sides of the fan housing 1, a support assembly 6 is movably installed between the bottoms of the fixing blocks 5 on the front and rear sides, the support assembly 6 comprises a placement plate 61, a placement plate 61 is movably installed below the fan housing 1, a fixing plate 62 located below the fixing block 5 is fixedly installed on the left and right sides of the top of the placement plate 61, a sleeve 63 extending to the top of the fixing plate 62 is fixedly installed inside the fixing plate 62, a limiting groove adapted to the sleeve 63 is opened inside the fixing plate 62, and a front side of the fixing plate 62 is threadedly connected with A limiting bolt extending into the limiting groove and threadedly connected to the sleeve 63, the matching use of the limiting bolt and the limiting groove facilitates installation by the user, the sleeve 63 is movably installed with a support rod 64 extending to its top and extending into the interior of the fixed block 5, the inner top wall of the sleeve 63 is provided with a through hole adapted to the support rod 64, the outer side of the fixed block 5 is threadedly connected with a locking bolt 65 extending into its interior and threadedly connected to the support rod 64, the opposite sides of the fixing blocks 5 on the front and rear sides are provided with threaded grooves adapted to the locking bolt 65, a limiting block 66 located inside the sleeve 63 is fixedly installed at the bottom of the support rod 64, the limiting block 66 is fitted with the inner side wall of the sleeve 63, and a support spring 67 fixedly connected to the sleeve 63 is fixedly installed at the bottom of the limiting block 66. A buffer assembly 7 fixedly connected to the support assembly 6 is fixedly installed at the bottom of the fan housing 1. The buffer assembly 7 includes a support seat 71. Two support seats 71 are fixedly installed at the bottom of the support seat 71. A mounting groove 72 is provided inside the support seat 71. An extension seat 73 extending to its bottom and fitting with the top of the mounting plate 61 is movably installed inside the mounting groove 72. Fixed feet 74 are fixedly installed on the front and rear sides of the extension seat 73. The top of the fixed foot 74 is threadedly connected to a fixing bolt threadedly connected to the mounting plate 61. The installation through the fixing bolts can be convenient for users to disassemble and assemble. A damper 75 fixedly connected to the inner top wall of the mounting groove 72 is fixedly installed on the inner bottom wall of the extension seat 73. It should be noted that the specific structural model and working principle of the damper 75 The principle refers to the prior art. Buffer springs 76 located on the front and rear sides of the damper 75 are fixedly installed between the inner bottom wall of the extension seat 73 and the inner top wall of the installation groove 72. The number of buffer springs 76 is several and is symmetrically distributed front to back. A groove is provided on the top of the extension seat 73. The damper 75 and the buffer spring 76 are fixedly installed in the groove. The axial flow tunnel fan, by setting the support seat 71, the extension seat 73, the damper 75 and the buffer spring 76 for coordinated use, can effectively support and buffer the axial flow tunnel fan when it is subjected to vibration and impact, thereby ensuring the stability of the fan during operation. And by the coordinated use of the fixing block 5, the placement plate 61, the fixing plate 62, the sleeve 63, the support rod 64, the limit block 66 and the support spring 67,The fan is stably supported at both ends, which further effectively buffers the vibration generated during the operation of the fan and reduces the mechanical wear caused by vibration, thereby effectively improving the stability and service life of the axial flow tunnel fan during operation and improving the practicality of the device.

[0023] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0024] To sum up, the axial flow tunnel fan, by setting up the support seat 71, the extension seat 73, the damper 75 and the buffer spring 76 for coordinated use, can effectively support and buffer the axial flow tunnel fan when it is subjected to vibration impact, thereby ensuring the stability of the fan during operation, and through the coordinated use of the fixing block 5, the mounting plate 61, the fixing plate 62, the sleeve 63, the support rod 64, the limit block 66 and the support spring 67, a stable support is achieved for both ends of the fan, further effectively buffering the vibration generated during the operation of the fan, reducing the mechanical wear caused by the vibration, thereby effectively improving the stability and service life of the axial flow tunnel fan during operation, improving the practicability of the device, facilitating the use of users, and solving the problems raised in the above-mentioned background technology.

[0025] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0026] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An axial flow tunnel fan, comprising a fan housing (1), characterized in that: A motor (3) is arranged inside the fan housing (1), a support frame (2) is arranged outside the motor (3), a fan blade (4) is arranged on the output shaft of the motor (3), two fixing blocks (5) are arranged on both the front and rear sides of the fan housing (1), a supporting assembly (6) is arranged between the bottoms of the fixing blocks (5) on the front and rear sides, and a buffer assembly (7) fixedly connected to the supporting assembly (6) is arranged at the bottom of the fan housing (1); The support assembly (6) comprises a placement plate (61), the placement plate (61) being movably mounted below the fan housing (1), a fixing plate (62) located below the fixing block (5) being fixedly mounted on both left and right sides of the top of the placement plate (61), a sleeve (63) extending to the top of the fixing plate (62) being fixedly mounted inside the fixing plate (62), a support rod (64) extending to the top of the sleeve (63) being movably mounted inside the sleeve (63), a locking bolt (65) extending to the inside of the fixing block (5) being threadedly connected to the outer side of the fixing block (5) and threadedly connected to the support rod (64), a limiting block (66) located inside the sleeve (63) being fixedly mounted at the bottom of the support rod (64), and a support spring (67) fixedly connected to the sleeve (63) being fixedly mounted at the bottom of the limiting block (66).

2. An axial flow tunnel fan according to claim 1, characterized in that: The buffer assembly (7) comprises a support seat (71), two support seats (71) are fixedly mounted on the bottom of the support seat (71), a mounting groove (72) is provided inside the support seat (71), an extension seat (73) extending to the bottom of the support seat and fitting with the top of the mounting plate (61) is movably mounted inside the mounting groove (72), fixed feet (74) are fixedly mounted on the front and rear sides of the extension seat (73), a damper (75) fixedly connected to the inner top wall of the mounting groove (72) is fixedly mounted on the inner bottom wall of the extension seat (73), and a buffer spring (76) located on the front and rear sides of the damper (75) is fixedly mounted between the inner bottom wall of the extension seat (73) and the inner top wall of the mounting groove (72).

3. The axial flow tunnel fan according to claim 1, characterized in that: A limiting groove matched with the sleeve (63) is provided inside the fixing plate (62), and a limiting bolt extending into the limiting groove and being threadedly connected to the sleeve (63) is threadedly connected to the front side of the fixing plate (62).

4. The axial flow tunnel fan according to claim 1, characterized in that: The inner top wall of the sleeve (63) is provided with a through hole matched with the support rod (64), the opposite sides of the fixing blocks (5) at the front and rear sides are provided with threaded grooves matched with the locking bolts (65), and the limiting block (66) is in contact with the inner side wall of the sleeve (63).

5. The axial flow tunnel fan according to claim 2, characterized in that: The top of the extension seat (73) is provided with a groove, and the damper (75) and the buffer spring (76) are both fixedly installed in the groove.

6. The axial flow tunnel fan according to claim 2, characterized in that: The top of the fixing foot (74) is threadedly connected to a fixing bolt which is threadedly connected to the placement plate (61), and the buffer springs (76) are provided in a plurality and are symmetrically distributed front to back.

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