Small fan

Abstract

The utility model relates to the technical field of fans, in particular to a small fan which comprises a shell, a top frame is arranged at the top of the shell, a bottom frame is arranged at the bottom of the shell, first connecting holes are formed in the four corners of the top frame, a first inserting plate is fixedly connected to the bottom of the top frame, and a second inserting plate is fixedly connected to the bottom of the bottom frame. Second connecting holes are formed in the four corners of the bottom frame, a second inserting plate is fixedly connected to the top of the bottom frame, and a protruding block is fixedly connected to the outer surface of the shell. Compared with the prior art, the fan has the advantages that when the screws are rotated to connect the fan with the case, once the first connecting holes in the four corners of the top frame are slipped, the top frame can be detached for replacement, or the top frame and the bottom frame can be exchanged for continuous installation, so that the situation that the fan cannot be stably installed due to damage of the connecting holes is avoided; the first inserting plate and the second inserting plate can be connected with the protruding block only through one fixing screw, and the purpose of facilitating mounting and dismounting is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to fan technical field, especially a small fan. BACKGROUND

[0002] With the continuous development and expansion of the internet industry, the network era has arrived, and more and more people have computers, and computers have become an indispensable tool in people's production and life process, so the number of people using computers is increasing, and safety and long-term use are very important for using computers, especially long-time use of computers, which can easily cause overheating of computers, resulting in computer crash, paralysis, and even collapse, so the computer cooling device is particularly important, and multiple small fans are usually used to ventilate and cool the inside of the case.

[0003] The existing fan is usually connected with the case by screws, although this way can stably connect the fan with the case, but when installing the screws, the screw slip is common, and once the screw hole on the fan is damaged, it cannot be normally installed, directly leading to the reduction of the stability of the fan connection. UTILITY MODEL CONTENTS

[0004] The utility model aims at solving at least one of the technical defects.

[0005] The utility model aims at overcoming the defects of the prior art, solving the problems mentioned in the background art, and providing a small fan.

[0006] The utility model discloses a small fan, which comprises a shell, a top frame is arranged at the top of the shell, a bottom frame is arranged at the bottom of the shell, first connecting holes are formed at the four corners of the top frame, a first plug-in plate is fixedly connected to the bottom of the top frame, second connecting holes are formed at the four corners of the bottom frame, a second plug-in plate is fixedly connected to the top of the bottom frame, a protruding block is fixedly connected to the outer surface of the shell, a through groove is formed in the inside of the protruding block, and the first plug-in plate and the second plug-in plate are inserted into the inside of the through groove.

[0007] The bottom of the first plug-in plate is fixedly connected with a clamping plate, a first circular hole is formed in the inside of the clamping plate, the bottom of the second plug-in plate is fixedly connected with a clamping plate, a second circular hole is formed in the inside of the clamping plate, the clamping plate is inserted into the inside of the clamping plate, a recess is formed on one side of the protruding block, a fixing screw is threadedly connected in the inside of the recess, and the fixing screw penetrates the inside of the first circular hole and the second circular hole.

[0008] Preferably, circular grooves are formed in the inside of the top frame and the bottom frame, the diameter of the shell is matched with the diameter of the circular groove, a support is fixedly connected to the bottom of the shell, a motor is fixedly connected to the top of the support, and a fan blade is fixedly connected to the output end of the motor.

[0009] By adopting the technical scheme, the motor and the shell are connected as a whole through the support.

[0010] Preferably, the number of the first inserting plates is four, the four first inserting plates are welded at the centers of the bottom of the four sides of the top frame respectively, the number of the second inserting plates is four, the four second inserting plates are welded at the centers of the top of the four sides of the bottom frame respectively, and the number of the convex blocks is four, the four convex blocks are circumferentially arrayed and welded to the outer wall of the shell.

[0011] By adopting the technical scheme, the independent top frame and the bottom frame are convenient to replace.

[0012] Preferably, the clamping plate is a rectangular plate, the clamping plate is welded at the center of the bottom of the first inserting plate, the clamping plate is composed of two rectangular plates, the clamping plate is welded at the two sides of the bottom of the second inserting plate, and the clamping plate is inserted into the inside of the clamping plate.

[0013] By adopting the technical scheme, the clamping of the clamping plate and the clamping plate can connect the first inserting plate and the second inserting plate as a whole, and the two can be fixedly connected through one fixing screw.

[0014] Preferably, the first circular hole is located at the center of the clamping plate, the second circular hole is located at the center of the clamping plate, and the position of the first circular hole corresponds to the position of the second circular hole.

[0015] By adopting the technical scheme, the first circular hole and the second circular hole are convenient for the fixing screw to pass through the clamping plate and the clamping plate.

[0016] Preferably, the recess is located at the center of the outer side of the convex block, the fixing screw is composed of a head and a screw rod, the depth of the recess is matched with the thickness of the head, and the screw rod is threadedly connected with the convex block.

[0017] By adopting the technical scheme, the recess can hide the head of the fixing screw.

[0018] Compared with the prior art, the utility model has the following advantages:

[0019] 1. The small fan, through the setting of the top frame, the top of the shell is provided with the top frame, the bottom of the shell is provided with the bottom frame, the bottom of the top frame is fixedly connected with the first inserting plate, the top of the bottom frame is fixedly connected with the second inserting plate, and the first inserting plate and the second inserting plate are inserted into the inside of the through slot.

[0020] 2、The small fan, through the setting card board, the bottom of the first plug-in board is fixedly connected with the clamping plate, the bottom of the second plug-in board is fixedly connected with the clamping plate, when using, the first plug-in board can be inserted into the through slot from the top of the protrusion, and then the second plug-in board is inserted into the through slot from the bottom of the protrusion, at this time, the clamping plate and the clamping plate are connected as a whole by rotating the fixing screw, and the first plug-in board and the second plug-in board are connected with the protrusion by the clamping plate and the clamping plate, so that the first plug-in board and the second plug-in board are connected with the protrusion. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is the structural schematic diagram of the first perspective of the utility model;

[0022] Figure 2 It is the structural schematic diagram of the second perspective of the utility model;

[0023] Figure 3 It is the structural schematic diagram of the top frame of the utility model;

[0024] Figure 4 It is the structural schematic diagram of the bottom frame of the utility model;

[0025] Figure 5 It is the structural schematic diagram of the protrusion of the utility model.

[0026] In the drawing: 1 - shell, 2 - top frame, 3 - bottom frame, 4 - first connecting hole, 5 - first plug-in board, 6 - second connecting hole, 7 - second plug-in board, 8 - protrusion, 9 - through slot, 10 - clamping plate, 11 - first round hole, 12 - clamping plate, 13 - second round hole, 14 - recess, 15 - fixing screw, 16 - support, 17 - motor, 18 - fan blade. DETAILED DESCRIPTION

[0027] The additional aspects and advantages of the utility model will be further given in the following description of the drawings, part will become obvious from the following description, or be understood by the practice of the utility model.

[0028] As Figures 1-5 As shown in a small fan, it includes shell 1, the top of shell 1 is equipped with top frame 2, the bottom of shell 1 is equipped with bottom frame 3, the four corners of top frame 2 are all provided with first connecting hole 4, the bottom of top frame 2 is welded with first plug-in board 5, the four corners of bottom frame 3 are all provided with second connecting hole 6, the top of bottom frame 3 is welded with second plug-in board 7, the outer surface of shell 1 is welded with protrusion 8, the inside of protrusion 8 is provided with through slot 9, and first plug-in board 5 and second plug-in board 7 are inserted into the inside of through slot 9.

[0029] Through the above setting, when the fan is connected with the cabinet by rotating the screw, once the first connecting hole 4 of the four corners of the top frame 2 is screwed, the top frame 2 can be disassembled and replaced, or the top frame 2 and the bottom frame 3 are exchanged to continue installation, avoiding the situation that the fan cannot be stably installed due to the damage of the connecting hole;

[0030] As shown in Figures 3-5 The bottom of the first plug plate 5 is welded with a clamping plate 10, the inside of the clamping plate 10 is provided with a first circular hole 11, the bottom of the second plug plate 7 is welded with a clamping plate 12, the inside of the clamping plate 12 is provided with a second circular hole 13, the clamping plate 10 is inserted into the inside of the clamping plate 12, one side of the protruding block 8 is provided with a groove 14, the inside of the groove 14 is threadedly connected with a fixing screw 15, and the fixing screw 15 penetrates the inside of the first circular hole 11 and the second circular hole 13.

[0031] Through the above setting, when in use, the first plug plate 5 can be inserted into the through slot 9 from the top of the protruding block 8, and the second plug plate 7 can be inserted into the through slot 9 from the bottom of the protruding block 8, at this time, the clamping plate 10 and the clamping plate 12 are clamped into one body, and the clamping plate 10 and the clamping plate 12 are connected into one body by rotating the fixing screw 15, through the setting of the clamping plate 10 and the clamping plate 12, only one fixing screw 15 is needed to connect the first plug plate 5 and the second plug plate 7 with the protruding block 8, so that the purpose of convenient installation and disassembly is achieved.

[0032] As a preferred technical scheme of the utility model, the inside of the top frame 2 and the bottom frame 3 is provided with a circular groove, the inside diameter of the shell 1 is matched with the diameter of the circular groove, the bottom of the shell 1 is fixedly connected with a support 16, the top of the support 16 is fixedly connected with a motor 17, and the output end of the motor 17 is fixedly connected with a fan blade 18.

[0033] As a preferred technical scheme of the utility model, the number of the first plug plate 5 is four, the four first plug plates 5 are respectively welded at the center of the bottom of the four edges of the top frame 2, the number of the second plug plate 7 is four, the four second plug plates 7 are respectively welded at the center of the top of the four edges of the bottom frame 3, and the number of the protruding block 8 is four, and the four protruding blocks 8 are circumferentially arrayed and welded on the outer wall of the shell 1.

[0034] As a preferred technical scheme of the utility model, the clamping plate 10 is a rectangular plate, the clamping plate 10 is welded at the center of the bottom of the first plug plate 5, the clamping plate 12 is composed of two rectangular plates, the clamping plate 12 is welded at the two edges of the bottom of the second plug plate 7, and the clamping plate 10 is inserted into the inside of the clamping plate 12.

[0035] As a preferred technical scheme of the utility model, the first circular hole 11 is located at the center of the clamping plate 10, the second circular hole 13 is located at the center of the clamping plate 12, and the position of the first circular hole 11 corresponds to the position of the second circular hole 13.

[0036] As a preferred technical scheme of the utility model, the recess 14 is located at the center of the outer side of the protruding block 8, the fixing screw 15 is composed of a head and a screw rod, the depth of the recess 14 is matched with the thickness of the head, and the screw rod is threadedly connected with the protruding block 8.

[0037] The working process of the utility model is as follows:

[0038] S1, when the rotating screw connects the fan and the case, once the first connecting hole 4 of the top frame 2 four corners slips the wire, the top frame 2 can be disassembled and replaced, or the top frame 2 and the bottom frame 3 are exchanged, and the installation can be continued;

[0039] S2, the first plugboard 5 is inserted into the through slot 9 from the top of the protruding block 8, and the second plugboard 7 is inserted into the through slot 9 from the bottom of the protruding block 8, at this time, the clamping plate 10 and the clamping plate 12 are clamped as a whole;

[0040] S3, rotating the fixing screw 15 can connect the clamping plate 10 and the clamping plate 12 as a whole.

[0041] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A small fan characterized by: Including the shell (1), the top of the shell (1) is provided with top frame (2), the bottom of the shell (1) is provided with bottom frame (3), the four corners of the top frame (2) are all provided with first connecting hole (4), the bottom of the top frame (2) is fixedly connected with first plugboard (5), the four corners of the bottom frame (3) are all provided with second connecting hole (6), the top of the bottom frame (3) is fixedly connected with second plugboard (7), the outer surface of the shell (1) is fixedly connected with protruding block (8), the inside of the protruding block (8) is provided with through slot (9), the first plugboard (5) and the second plugboard (7) are all inserted in the inside of the through slot (9); The bottom of the first plugboard (5) is fixedly connected with clamping plate (10), the inside of the clamping plate (10) is provided with first circular hole (11), the bottom of the second plugboard (7) is fixedly connected with clamping plate (12), the inside of the clamping plate (12) is provided with second circular hole (13), the clamping plate (10) is inserted in the inside of the clamping plate (12), one side of the protruding block (8) is provided with recess (14), the inside of the recess (14) is threadedly connected with fixed screw (15), the fixed screw (15) penetrates the inside of the first circular hole (11) and the second circular hole (13).

2. A small fan according to claim 1, characterized in that: The inside of the top frame (2) and the bottom frame (3) is all provided with circular groove, the inside diameter of the shell (1) is matched with the diameter of the circular groove, the bottom of the shell (1) is fixedly connected with support (16), the top of the support (16) is fixedly connected with motor (17), the output end of the motor (17) is fixedly connected with fan blade (18).

3. A small fan according to claim 1, wherein: The number of the first plugboard (5) is four, four first plugboards (5) are respectively welded at the center of the bottom of the four sides of the top frame (2), the number of the second plugboard (7) is four, four second plugboards (7) are respectively welded at the center of the top of the four sides of the bottom frame (3), the number of the protruding block (8) is four, four protruding blocks (8) are circumferentially arrayed and welded on the outer wall of the shell (1).

4. A small fan according to claim 1, wherein: The clamping plate (10) is rectangular plate, the clamping plate (10) is welded at the center of the bottom of the first plugboard (5), the clamping plate (12) is composed of two rectangular plates, the clamping plate (12) is welded at the two sides of the bottom of the second plugboard (7), the clamping plate (10) is inserted in the inside of the clamping plate (12).

5. A small fan according to claim 1, wherein: The first circular hole (11) is located at the center of the clamping plate (10), the second circular hole (13) is located at the center of the clamping plate (12), the position of the first circular hole (11) corresponds to the position of the second circular hole (13).

6. A small fan according to claim 1, wherein: The recess (14) is located at the center of the outside of the protruding block (8), the fixed screw (15) is composed of head and screw rod, the depth of the recess (14) is matched with the thickness of the head, the screw rod is threadedly connected with the protruding block (8).

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