CN208607607U - A kind of fixed structure of cpu fan flabellum rotary shaft - Google Patents

Abstract

The utility model provides a kind of fixed structure of cpu fan flabellum rotary shaft, including cylinder type body, installation through-hole is provided in the axial direction at the cylinder type body center, close-fitting has insert in the installation through-hole, the upper surface of the insert is flushed with lower end surface with the upper surface of the cylinder type body and lower end surface, the insert is cylindrical structure, is provided with rotary shaft location hole along axial direction at the center of the insert, the rotary shaft of electric fan is plugged in the rotary shaft location hole.The utility model adopts a split structure, after rotary shaft location hole aperture becomes larger, the insert is only needed replacing at this time, and does not have to need replacing entire fixed insert as original, it is not only convenient for guaranteeing productive temp in this way, and manufacturing cost can be reduced.

Description

A kind of fixed structure of cpu fan flabellum rotary shaft

Technical field

The utility model relates to cpu fan flabellum production fields, and in particular to a kind of fixation of cpu fan flabellum rotary shaft Structure.

Background technique

Cpu fan flabellum is the significant components of laptop CPU, generation when it takes away CPU operation by rotation in time Heat, guarantee the normal operation of CPU, be coaxially provided with a rotary shaft at the center of cpu fan flabellum, be molded electric fan When need to fix rotary shaft with fixed insert, rotary shaft is fixed in rotary shaft fixation hole before injection molding, is completed after being molded again Rotary shaft is removed from rotary shaft fixation hole；Due to needing frequently to insert when injection molding, taking rotary shaft, after a period of use will Rotary shaft fixation hole is caused to become larger, to prevent rotary shaft and rotary shaft fixation hole from tight fit, thus it cannot be guaranteed that injection molding Go on smoothly, and existing fixed insert is monolithic construction, therefore can only replace entire fixed insert；However, existing It not only needs to process rotary shaft fixation hole when fixed insert processing, it is also necessary to remaining structure is processed, not only the process-cycle is longer, and one As need 10 days, be thus unfavorable for guaranteeing productive temp, and manufacturing cost is high.

Utility model content

Problem to be solved in the utility model is to provide a kind of CPU wind for the above-mentioned deficiency in the presence of the prior art The fixed structure of fan flabellum rotary shaft facilitates fan attachment flabellum rotary shaft.

To achieve the above object, the utility model uses the following technical solution: a kind of cpu fan flabellum rotary shaft Fixed structure, including cylinder type body are provided in the axial direction with installation through-hole, the installation through-hole at the cylinder type body center Middle close-fitting has insert, and the upper surface of the insert is flushed with lower end surface with the upper surface of the cylinder type body and lower end surface, institute Insert is stated as cylindrical structure, is provided with rotary shaft location hole along axial direction at the center of the insert, the rotary shaft of electric fan is inserted It connects in the rotary shaft location hole.

Further, a kind of fixed structure of cpu fan flabellum rotary shaft further includes pedestal, and the pedestal is equipped with vertical Sliding slot, the cylinder type body lower end, which is mounted in the sliding slot and is slidably matched with the sliding slot, makes the cylinder type body It is moved up and down in the sliding slot, the insert lower end is equipped with rubber sleeve, and the rubber sleeve blocks the rotary shaft location hole, described Sliding slot bottom surface be equipped with cylinder corresponding with the rotary shaft location hole, the cylinder type body when moving down the cylinder push away It moves the rubber sleeve and protrudes into the rotary shaft positioning hole, the sliding slot is equipped with the slide bar around the cylinder, the circle Column type ontology lower end is equipped with the blind hole cooperated with the sliding bar, and spring is wound on the slide bar, and the spring is located at described Between cylinder type body lower surface and the bottom surface of the sliding slot, the cylinder is equipped with first row stomata, under the first row stomata Across the pedestal, the rubber sleeve is equipped with second row stomata at end, and the second row stomata is when the rubber sleeve stretches and institute State the connection of first row stomata.

Compared with the prior art, the utility model has the following beneficial effects: the utility model adopts a split structure, and It is provided with an installation through-hole along axial direction at the center of the cylinder type body, tight fit has an edge in the installation through-hole Block, and it is provided with the rotary shaft location hole along axial direction at the center of the insert, the rotary shaft location hole is for fixing Rotary shaft；After rotary shaft location hole aperture becomes larger, the insert is only needed replacing at this time, and is not had to as original Entire fixed insert is needed replacing, and the process time of the insert only needs two days, is not only convenient for guaranteeing production in this way Beat, and manufacturing cost can be reduced, solve the technical problem of puzzlement industry many years by seeming very simple change.

The further advantage, target and feature of the utility model will be partially reflected by the following instructions, and part will also pass through Research and practice to the utility model and be understood by the person skilled in the art.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of the fixed structure of cpu fan flabellum rotary shaft of the utility model.

Specific embodiment

In order to make technological means of the utility model, creation characteristic, reach purpose and effect is more clear and is easy to Understand, the utility model be further elaborated with reference to the accompanying drawings and detailed description:

It is described the utility model proposes a kind of fixed structure of cpu fan flabellum rotary shaft, including cylinder type body 1 Installation through-hole 2 is provided in the axial direction at 1 center of cylinder type body, close-fitting has an insert 3 in the installation through-hole 2, the insert 3 with The installation through-hole 2 is interference fitted, the upper surface and lower end surface of the insert 3 and the upper surface of the cylinder type body 1 and under End face, the insert 3 are cylindrical structure, are provided with rotary shaft location hole 4, fan along axial direction at the center of the insert 3 The rotary shaft 5 of flabellum is plugged in the rotary shaft location hole 4, and the internal diameter of the rotary shaft location hole 4 is equal to the rotary shaft 5 Outer diameter.

As specific embodiment, the rotary shaft 5 is locked in the rotary shaft location hole 4 and facilitates institute for convenience The taking-up of rotary shaft 5 is stated, a kind of fixed structure of cpu fan flabellum rotary shaft further includes pedestal 6, and the pedestal 6 is equipped with perpendicular Straight sliding slot 7,7 internal diameter of sliding slot is identical as 1 outer diameter of cylinder type body, and the sliding slot 7 is opening up, the cylindrical type 1 lower end of ontology is mounted in the sliding slot 7 and being slidably matched with the sliding slot 7 makes the cylinder type body 1 on the sliding slot 7 Lower movement, 3 lower end of insert are equipped with rubber sleeve 8, and the rubber sleeve 8 has stretching and contractile function, and the rubber sleeve 8 blocks The rotary shaft location hole 4, the rubber sleeve edge are fixedly connected on 3 edge of insert, 7 bottom surface of sliding slot be equipped with The corresponding cylinder 9 of the rotary shaft location hole 4, the internal diameter that the outer diameter of the cylinder 9 is less than the rotary shaft location hole 4 make institute Stating cylinder 9 and carrying when the rubber sleeve 8 protrudes into the rotary shaft location hole 4 will not be clamped in the rotary shaft location hole 4, institute Stating the cylinder 9 when cylinder type body 1 moves down pushes the rubber sleeve 8 to protrude into the rotary shaft location hole 4, institute It states sliding slot 7 and is equipped with the slide bar 10 for surrounding the cylinder 9,1 lower end of cylinder type body is equipped with and is slidably matched with the slide bar 10 Blind hole 11, the blind hole 11 is opening down corresponding with the slide bar 10,11 internal diameter of blind hole be equal to the slide bar 10 outside Diameter is wound with spring 12 on the slide bar 10, when the cylinder type body 1 when the sliding slot 7 moves down the slide bar 10 to described Protrude into and compress the spring 12 in blind hole 11, the spring 12 is located at 1 lower surface of cylinder type body and the sliding slot 7 Between bottom surface, the cylinder 9 is equipped with first row stomata 14, and 14 lower end of first row stomata passes through the pedestal 6 and connects with extraneous Logical, the rubber sleeve 8 is equipped with second row stomata 13, and the second row stomata 13 is when the rubber sleeve 8 stretches and described first Gas vent 14 is connected to；When needing the rotary shaft 5 being fixed on the rotary shaft location hole 4, the cylindrical type sheet is first pushed Then body 1 makes the cylinder 9 that the rubber sleeve 8 be pushed to protrude into the rotary shaft location hole 4 until the second row stomata 13 It is stretched to become larger and be connected to the first row stomata 14, then protrude into the rotary shaft 5 from 4 upper end of rotary shaft location hole And contacted with the rubber sleeve 8, the cylinder type body 1 that then comes up makes the cylinder 9 and the rubber sleeve 8 described It glides in rotary shaft location hole 4,13 eyelet of second row stomata gradually becomes smaller last disconnected with the first row stomata 14 at this time Open connection, the cylinder 9 continues to glide the constantly rubber sleeve 8 and the rotary shaft location hole 4 in the rotary shaft location hole 4 Air pressure becomes smaller and tenses the rotary shaft 5；When needing to take out the rotary shaft 5, pushing the cylinder type body 1 makes the circle Column 9 makes the second row stomata 13 stretch expansion aperture to become larger and the first row to protruding into above the rotary shaft location hole 4 Stomata 14 is connected to, and then takes out the rotary shaft 5.

Finally, it is stated that above embodiments are merely intended for describing the technical solutions of the present application, but not for limiting the present application, although ginseng The utility model is described in detail according to preferred embodiment, those skilled in the art should understand that, it can be to this The technical solution of utility model is modified or replaced equivalently, without departing from the objective and model of technical solutions of the utility model It encloses, should all cover in the scope of the claims of the utility model.

Claims (2)

1. a kind of fixed structure of cpu fan flabellum rotary shaft, it is characterised in that: including cylinder type body (1), the cylindrical type It is provided in the axial direction with installation through-hole (2) at ontology (1) center, close-fitting has insert (3), the insert in the installation through-hole (2) (3) upper surface is flushed with lower end surface with the upper surface of the cylinder type body (1) and lower end surface, and the insert (3) is cylinder Body structure is provided with rotary shaft location hole (4) at the center of the insert (3) along axial direction, and the rotary shaft (5) of electric fan is plugged on In the rotary shaft location hole (4).

2. a kind of fixed structure of cpu fan flabellum rotary shaft according to claim 1, it is characterised in that: a kind of CPU The fixed structure of electric fan rotary shaft further includes pedestal (6), and the pedestal (6) is equipped with vertical sliding slot (7), the cylindrical type Ontology (1) lower end is mounted in the sliding slot (7) and being slidably matched with the sliding slot (7) makes the cylinder type body (1) in institute It states sliding slot (7) to move up and down, insert (3) lower end is equipped with rubber sleeve (8), and it is fixed that the rubber sleeve (8) blocks the rotary shaft Position hole (4), sliding slot (7) bottom surface are equipped with cylinder (9) corresponding with rotary shaft location hole (4), the cylindrical type sheet To push the rubber sleeve (8) to protrude into the rotary shaft location hole (4) interior for the cylinder (9) when moving down for body (1), described Sliding slot (7) is equipped with the slide bar (10) around the cylinder (9), and cylinder type body (1) lower end is equipped with and the slide bar (10) The blind hole (11) being slidably matched is wound with spring (12) on the slide bar (10), and the spring (12) is located at the cylinder type body (1) between lower surface and the bottom surface of the sliding slot (7), the cylinder (9) is equipped with first row stomata (14), the first row stomata (14) lower end passes through the pedestal (6), and the rubber sleeve (8) is equipped with second row stomata (13), and the second row stomata (13) exists The rubber sleeve (8) is connected to when stretching with the first row stomata (14).