Negative pressure fan rotating structure

Abstract

The utility model discloses a negative pressure fan rotating structure which comprises a machine shell and a rotating shaft, the rotating shaft is sleeved with an installation base, the installation base is sleeved with an installation shell, the installation shell is rotationally connected with the installation base, a sliding groove is formed in the installation base, a sliding block is slidably connected in the sliding groove, and a clamping block is fixedly connected to the outer portion of the sliding block. The clamping block is matched with the rotating shaft. According to the negative pressure fan rotating structure, bolts on the mounting shell are unscrewed and taken down, at the moment, the mounting shell can be rotated in the forward direction, the mounting shell extrudes a sliding rod through an inclined groove, the sliding rod drives a clamping block to be away from a rotating shaft, so that fixation between a mounting base and the rotating shaft is relieved, and at the moment, a user can take the mounting base and fan blades out of a machine shell together; and then the mounting shell continues to be rotated in the forward direction till the clamping grooves in the sliding blocks are separated from the clamping blocks on the fan blades, at the moment, the fan blades can be taken down from the mounting base, then the fan blades are cleaned, and operation is more convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to negative pressure fan technical field, more specifically, relate to a negative pressure fan rotation structure. BACKGROUND

[0002] The negative pressure fan is a kind of machine that can improve any ventilation problem by the principle of air convection and negative pressure ventilation, which can rapidly and forcibly discharge the hot air in the room to the outside by the natural suction of fresh air through the opposite door or window of installation site.

[0003] After a long time, a lot of dirt will adhere to the fan blade of the negative pressure fan, which will affect the normal rotation of the fan blade if not cleaned in time, so the user needs to clean the fan blade of the negative pressure fan regularly, but the fan blade and the shaft of some existing negative pressure fans are fixed together and are integrally formed, so that the fan blade of the traditional negative pressure fan cannot be disassembled, thereby increasing the difficulty of cleaning the fan blade. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a negative pressure fan rotation structure to solve the problems raised in the background art.

[0005] The fan blade and the shaft of some existing negative pressure fans are fixed together and are integrally formed, so that the fan blade of the traditional negative pressure fan cannot be disassembled, thereby increasing the difficulty of cleaning the fan blade.

[0006] In order to achieve the above-mentioned purpose, the utility model provides the following technical scheme.

[0007] A negative pressure fan rotation structure includes a housing and a shaft, the outer part of the shaft is provided with a mounting seat, the outer part of the mounting seat is provided with a mounting shell, the mounting shell is rotationally connected with the mounting seat, the inner part of the mounting seat is provided with a sliding groove, the inner part of the sliding groove is slidably connected with a sliding block, the outer part of the sliding block is fixedly connected with a clamping block, the clamping block is used in cooperation with the shaft, the inner part of the mounting shell and one side of the clamping block are provided with an inclined slot, the inner part of the inclined slot is slidably connected with a sliding rod, and the sliding rod is fixedly connected with the clamping block.

[0008] Preferably, the sliding block has six, and the six sliding blocks are symmetrically distributed.

[0009] Preferably, the sliding groove is a regular hexagonal structure.

[0010] Preferably, the inner part of the mounting seat is provided with a slot, the slot is communicated with the sliding groove, the inner part of the slot is detachably connected with a clamping block, the outer part of the clamping block is fixedly connected with a fan blade, the inner part of the sliding block is provided with a clamping groove, and the clamping groove is used in cooperation with the clamping block.

[0011] Preferably, the inside of the mounting shell is detachably connected with a bolt, and the inside of the mounting seat is provided with a threaded hole, which is used in cooperation with the bolt.

[0012] Preferably, the outside wall of the sliding block is attached to the inside wall of the sliding groove.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] The bolt on the mounting shell is loosened and removed, at this time, the mounting shell can be positively rotated, the mounting shell will extrude the sliding rod by the inclined groove, the sliding rod will drive the clamping block away from the rotating shaft, so as to release the fixing between the mounting seat and the rotating shaft, at this time, the user can take out the mounting seat and the fan blade from the shell, then the mounting shell is positively rotated again, until the clamping groove on the sliding block is separated from the clamping block on the fan blade, at this time, the fan blade can be taken off from the mounting seat, then the fan blade is cleaned, and the operation is more convenient. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the overall structural schematic view of the utility model.

[0016] Figure 2 It is the structural schematic view of the mounting shell of the utility model.

[0017] Figure 3 It is the structural schematic view of the sliding rod of the utility model.

[0018] Figure 4 It is the structural schematic view of the sliding groove of the utility model.

[0019] Figure 5 It is the structural schematic view of the rotating shaft of the utility model.

[0020] Figure 6 It is the structural schematic view of the clamping block of the utility model.

[0021] Figure 7 It is the structural schematic view of the clamping block of the utility model.

[0022] Explanation of reference numerals in the drawing: 1, shell; 2, rotating shaft; 3, mounting seat; 4, mounting shell; 5, sliding groove; 6, sliding block; 7, clamping block; 8, inclined groove; 9, sliding rod; 10, insertion slot; 11, clamping block; 12, fan blade; 13, clamping groove; 14, bolt; 15, threaded hole. DETAILED DESCRIPTION

[0023] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative efforts under the premise that no creative efforts are made, belong to the scope of protection of the present application.

[0024] Please refer to Figures 1 to 7 A negative pressure fan rotating structure, including a shell 1 and a rotating shaft 2, the outer sleeve of the rotating shaft 2 is provided with a mounting seat 3, the outer sleeve of the mounting seat 3 is provided with a mounting shell 4, the mounting shell 4 is rotatably connected with the mounting seat 3, the inside of the mounting seat 3 is provided with a sliding groove 5, the inside of the sliding groove 5 is slidably connected with a sliding block 6, the sliding block 6 and the sliding groove 5 are used for limiting the clamping block 7, the outside of the sliding block 6 is fixedly connected with the clamping block 7, the clamping block 7 is used in cooperation with the rotating shaft 2, the inside of the mounting shell 4 and located on one side of the clamping block 7 is provided with an inclined groove 8, the inside of the inclined groove 8 is slidably connected with a sliding rod 9, the sliding rod 9 is fixedly connected with the clamping block 7, when the mounting shell 4 rotates, the sliding rod 9 is extruded through the inclined groove 8, so that the sliding rod 9 drives the clamping block 7 to move, the clamping block 7 is used for clamping the rotating shaft 2, and the fixing between the mounting seat 3 and the rotating shaft 2 is realized.

[0025] Further, the sliding block 6 has six, the six sliding blocks 6 are symmetrically distributed, correspondingly, the clamping block 7 also has six, and the shape surrounded by the six clamping blocks 7 is adapted to the rotating shaft 2, which is a regular hexagonal structure, so that the rotating shaft 2 can drive the mounting seat 3 to rotate as a whole, thereby driving the fan blade 12 to rotate.

[0026] Further, the sliding groove 5 is a regular hexagonal structure, when the mounting shell 4 rotates, the inclined groove 8 and the sliding rod 9 can drive the six clamping blocks 7 at different positions to move simultaneously, and the regular hexagonal structure of the sliding groove 5 cooperates with the sliding block 6 to ensure that the distance of each clamping block 7 after moving is the same.

[0027] Further, the inside of the mounting seat 3 is provided with a slot 10, the slot 10 is communicated with the sliding groove 5, the inside of the slot 10 is detachably connected with a clamping block 11, the outside of the clamping block 11 is fixedly connected with the fan blade 12, the inside of the sliding block 6 is provided with a clamping groove 13, the clamping groove 13 is used in cooperation with the clamping block 11, the clamping block 11 on the fan blade 12 can be inserted into the slot 10, and then the clamping groove 13 cooperates with the clamping block 11 to fix the fan blade 12 and the mounting seat 3.

[0028] Further, the inside of the mounting shell 4 is detachably connected with a bolt 14, the inside of the mounting seat 3 is provided with a threaded hole 15, the threaded hole 15 is used in cooperation with the bolt 14, the mounting shell 4 and the mounting seat 3 are fixed through the bolt 14 and the threaded hole 15, so that the mounting shell 4 no longer rotates.

[0029] Further, the outer side wall of the sliding block 6 is attached to the inner side wall of the sliding groove 5, and the sliding block 6 can slide back and forth in the sliding groove 5. Since the sliding block 6 is attached to the sliding groove 5 tightly, the sliding groove 5 can limit the sliding block 6, so that the sliding block 6 is more stable when sliding.

[0030] The use steps of the utility model are as follows: when the fan blade 12 needs to be cleaned, the user can unscrew and remove the bolt 14 on the mounting shell 4, at this time, the mounting shell 4 can be rotated forward, the mounting shell 4 can extrude the sliding rod 9 by the inclined groove 8, the sliding rod 9 can drive the clamping block 7 to move away from the rotating shaft 2, so as to release the fixing between the mounting seat 3 and the rotating shaft 2, at this time, the user can take out the mounting seat 3 and the fan blade 12 from the shell 1, then continue to rotate the mounting shell 4 forward, until the clamping groove 13 on the sliding block 6 is separated from the clamping block 11 on the fan blade 12, at this time, the fan blade 12 can be taken off from the mounting seat 3, then the fan blade 12 can be cleaned, the operation is more convenient, and the normal operation of the fan blade 12 can be ensured.

[0031] The basic principle, main features and advantages of the utility model are shown and described above. It should be understood by those skilled in the art that the utility model is not limited by the above-mentioned embodiments, the above-mentioned embodiments and the description in the specification are only preferred examples of the utility model, and are not used to limit the utility model, various changes and improvements of the utility model can be made without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A negative pressure fan rotating structure, comprising a casing (1) and a rotating shaft (2), characterized in that: The outer sleeve of the rotating shaft (2) is provided with a mounting seat (3), the outer sleeve of the mounting seat (3) is provided with a mounting shell (4), the mounting shell (4) is rotationally connected with the mounting seat (3), the inner part of the mounting seat (3) is provided with a sliding groove (5), the inner part of the sliding groove (5) is slidably connected with a sliding block (6), the outer part of the sliding block (6) is fixedly connected with a clamping block (7), the clamping block (7) is used in cooperation with the rotating shaft (2), the inner part of the mounting shell (4) and on one side of the clamping block (7) is provided with an inclined slot (8), the inner part of the inclined slot (8) is slidably connected with a sliding rod (9), and the sliding rod (9) is fixedly connected with the clamping block (7).

2. The rotating structure of a negative pressure fan according to claim 1, wherein: The sliding block (6) is shared by six, and the six sliding blocks (6) are symmetrically distributed.

3. The rotating structure of a negative pressure fan according to claim 1, wherein: The sliding groove (5) is a regular hexagonal structure.

4. The rotating structure of a negative pressure fan according to claim 1, wherein: The inner part of the mounting seat (3) is provided with a slot (10), the slot (10) is communicated with the sliding groove (5), the inner part of the slot (10) is detachably connected with a clamping block (11), the outer part of the clamping block (11) is fixedly connected with a fan blade (12), the inner part of the sliding block (6) is provided with a clamping groove (13), and the clamping groove (13) is used in cooperation with the clamping block (11).

5. The rotating structure of a negative pressure fan according to claim 1, wherein: The inner part of the mounting shell (4) is detachably connected with a bolt (14), the inner part of the mounting seat (3) is provided with a threaded hole (15), and the threaded hole (15) is used in cooperation with the bolt (14).

6. The rotating structure of a negative pressure fan according to claim 1, wherein: The outer side wall of the sliding block (6) is attached to the inner side wall of the sliding groove (5).

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