CN112855620A

CN112855620A - Centrifugal fan convenient for replacing bearing chamber

Info

Publication number: CN112855620A
Application number: CN201911195368.7A
Authority: CN
Inventors: 顾洪宇
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-28
Filing date: 2019-11-28
Publication date: 2021-05-28

Abstract

The invention discloses a centrifugal fan convenient for replacing a bearing chamber, which comprises a fan body, a protection plate and a base, wherein a chamber is embedded in the fan body and the protection plate, a sliding groove is formed in the inner wall of the chamber, a clamping block is embedded in the sliding groove, the left end of the clamping block is fixedly connected with one end of a first hinge rod, the other end of the first hinge rod is hinged to a second hinge rod through a first hinge shaft, the second hinge rod is hinged to a rotating block, a rotating shaft is welded at the front end of the rotating block, and a switch is fixedly installed at the front end of the rotating shaft. According to the invention, the rotating shaft is rotated through the rotating switch, so that the rotating block is driven to rotate, the clamping block is embedded into the cavity under the action of the first hinge rod, the first hinge shaft and the second hinge rod, so that the clamping block is well fixed, the protection plate and the fan are conveniently fixed through the device, the bearing chamber is conveniently replaced, and the maintenance efficiency of the device is improved.

Description

Centrifugal fan convenient for replacing bearing chamber

Technical Field

The invention relates to the technical field of centrifugal fans, in particular to a centrifugal fan with a bearing chamber convenient to replace.

Background

At present, centrifugal fans are common in daily life, the centrifugal fans can achieve good ventilation, dust exhaust and cooling effects, and the existing centrifugal fans basically meet the requirements of people, but still have some problems.

Present centrifugal fan, the problem that the bearing room damaged can appear often when using, however current centrifugal fan generally is provided with the guard plate to fix the guard plate through the multiunit bolt, though can play fine fixed through this kind of design, but comparatively loaded down with trivial details when dismantling and changing the bearing room, influenced staff's dismantlement efficiency.

And present centrifugal fan generally drives the impeller rotation through the motor to reach the work demand, can lead to taking place vibrations between fan and the base after the motor rotates, and generally do not have shock-absorbing structure between present fan and the base, can lead to causing the friction damage between fan and the base after using for a long time, reduced the life of device, therefore need a centrifugal fan who conveniently changes the bearing room to solve above-mentioned problem urgently.

Disclosure of Invention

The invention aims to provide a centrifugal fan with a bearing chamber convenient to replace, and aims to solve the problems that a traditional centrifugal fan provided in the background art is generally provided with a protection plate, the protection plate is fixed through a plurality of groups of bolts, the design can achieve good fixation, but the bearing chamber is more complicated to disassemble and replace, and the disassembly efficiency of workers is influenced.

In order to achieve the purpose, the invention provides the following technical scheme: a centrifugal fan facilitating bearing chamber replacement comprises a fan body, a protection plate and a base, wherein a cavity is embedded in the fan body and the protection plate, a sliding groove is formed in the inner wall of the cavity, a clamping block is embedded in the sliding groove, one end of a first hinge rod is fixedly connected to the left end of the clamping block, the other end of the first hinge rod is hinged to a second hinge rod through a first hinge shaft, the second hinge rod is hinged to a rotating block, a rotating shaft is welded at the front end of the rotating block, a switch is fixedly mounted at the front end of the rotating shaft, the first hinge rod, the first hinge shaft, the second hinge rod, the rotating block and the rotating shaft are all embedded in the protection plate, a second hinge shaft is embedded in the bottom end of the fan body, the second hinge shaft is hinged to a third hinge shaft through a third hinge rod, the third hinge shaft is embedded in the base, and the bottom end of the fan body, the other end of the spring is connected with a base, and the bottom end of the machine body is fixedly connected with the base.

Preferably, the upper end and the lower end of the clamping block are the same as the sliding groove in shape, and the clamping block forms a sliding structure through the sliding groove.

Preferably, the rotating block, the rotating shaft and the switch rotating angle are all 90 degrees, and the sliding grooves in the machine body and the protection plate correspond to each other.

Preferably, the front end of the machine body is provided with a hole, and the diameter of the hole is the same as that of the guard plate.

Preferably, the machine body and the base form an elastic telescopic structure through a third hinged rod and a spring.

Compared with the prior art, the invention has the beneficial effects that:

1. the centrifugal fan convenient for replacing the bearing chamber is provided with a chamber, a sliding groove, a clamping block, a first hinge rod, a first hinge shaft, a second hinge rod, a rotating block, a rotating shaft and a switch, wherein the rotating shaft is rotated through rotating the switch so as to drive the rotating block to rotate;

2. this conveniently change centrifugal fan of bearing room is provided with the second articulated shaft, the third articulated pole, the third articulated shaft, spring and base, during the use, make the device take place vibrations after the motor work, through the articulated effect of third articulated pole both ends on second articulated shaft and third articulated shaft this moment, will receive external force and turn into the friction of rotating, the spring turns into elastic potential energy with pressure simultaneously, play the shock attenuation effect that can be fine when making the fan during operation through above-mentioned device, hoisting device's practicality, the life of fan has been guaranteed simultaneously.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic front sectional view of the present invention;

fig. 3 is an enlarged schematic view of a portion a in fig. 2 according to the present invention.

In the figure: 1. a body; 2. a chamber; 3. a sliding groove; 4. a clamping block; 5. a first hinge lever; 6. a first hinge shaft; 7. a second hinge lever; 8. rotating the block; 9. a rotating shaft; 10. a switch; 11. a protection plate; 12. a second hinge shaft; 13. a third hinge rod; 14. a third hinge shaft; 15. a spring; 16. a base.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-3, an embodiment of the present invention is shown: a centrifugal fan convenient for replacing a bearing chamber comprises a machine body 1, a protection plate 11 and a base 16, wherein a chamber 2 is embedded in the machine body 1 and the protection plate 11, a sliding groove 3 is formed in the inner wall of the chamber 2, a clamping block 4 is embedded in the sliding groove 3, the upper end and the lower end of the clamping block 4 are the same as the shape of the sliding groove 3, the clamping block 4 forms a sliding structure through the sliding groove 3, the sliding groove 3 consists of two parts, one part is arranged on the inner wall of the machine body 1, the other part is arranged in the protection plate 11, through the design, the two parts of the sliding grooves 3 are required to be aligned when in use, then the clamping block 4 is embedded by rotating a switch 10, the protection plate 11 is conveniently installed on the machine body 1, the practicability of the lifting device is high, the use is convenient, a plurality of groups of bolts are not required to fix, so that the bearing chamber, the other end of the first hinge rod 5 is hinged with a second hinge rod 7 through a first hinge shaft 6, the second hinge rod 7 is hinged with a rotating block 8, the front end of the rotating block 8 is welded with a rotating shaft 9, the front end of the rotating shaft 9 is fixedly provided with a switch 10, the rotating angles of the rotating block 8, the rotating shaft 9 and the switch 10 are all 90 degrees, the machine body 1 corresponds to the sliding groove 3 on the protection plate 11, as shown in figure 3, the rotation of 0-90 degrees is the minimum distance and the maximum distance for the fixture block 4 to slide on the sliding groove 3, the first hinge rod 5, the first hinge shaft 6, the second hinge rod 7, the rotating block 8 and the rotating shaft 9 are all embedded in the protection plate 11, the front end of the machine body 1 is provided with a hole, the diameter of the hole is the same as the diameter of the protection plate 11, the protection plate 11 can be embedded in the machine body 1 for installation, the protection plate can not, the second articulated shaft 12 is articulated with a third articulated shaft 14 through a third articulated rod 13, the third articulated shaft 14 is embedded in a base 16, one end of a spring 15 is connected at the bottom end of the machine body 1, the other end of the spring 15 is connected with the base 16, the base 16 is fixedly connected at the bottom end of the machine body 1, the machine body 1 and the base 16 form an elastic telescopic structure through the third articulated rod 13 and the spring 15, when the machine body 1 works, the vibration of a motor transmits external force to the shell of the machine body 1, and then the external force is transmitted to the base 16 through the second articulated shaft 12, the third articulated shaft 13 and the third articulated shaft 14, at the moment, the second articulated shaft 12 moves downwards, the third articulated rod 13 rotates anticlockwise, the external force is well converted into rotation friction force in an articulated mode, meanwhile, the spring 15 compresses to convert the received pressure into elastic potential energy, and the problem of abrasion between the machine body 1 and the base 16 caused by the vibration after the machine body 1 works, the service life of the lifting device.

The working principle is as follows: when the bearing chamber needs to be replaced, the protection plate 11 is embedded into the hole in the machine body 1, then the switch 10 is rotated 90, the rotating shaft 9 and the rotating block 8 are rotated, the second hinge rod 7 is subjected to a rightward component force at the moment, the first hinge shaft 6 and the first hinge rod 5 are pushed rightward, the end part of the clamping block 4 slides in the sliding groove 3 and is gradually embedded into the cavity 2 in the machine body 1, the protection plate 11 is conveniently fixed, the practicability of the lifting device is convenient to disassemble, and the maintenance efficiency of the device is improved;

during the use, 1 work of fuselage takes place vibrations, and fuselage 1 transmits external force to second articulated shaft 12 this moment on, and third articulated rod 13 uses second articulated shaft 12 to do anticlockwise rotation as the centre of a circle afterwards, and spring 15 compression will receive pressure transformation to potential energy simultaneously, can fine play shock attenuation effect through above device, prevents to receive wearing and tearing and damage between fuselage 1 and the cavity 2, hoisting device life.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. Conveniently change centrifugal fan of bearing room, including fuselage (1), guard plate (11) and base (16), its characterized in that: the machine body (1) and the protection plate (11) are internally embedded with a cavity (2), the inner wall of the cavity (2) is provided with a sliding groove (3), a fixture block (4) is embedded in the sliding groove (3), the left end of the fixture block (4) is fixedly connected with one end of a first hinge rod (5), the other end of the first hinge rod (5) is hinged with a second hinge rod (7) through a first hinge shaft (6), the second hinge rod (7) is hinged with a rotating block (8), the front end of the rotating block (8) is welded with a rotating shaft (9), the front end of the rotating shaft (9) is fixedly provided with a switch (10), the first hinge rod (5), the first hinge shaft (6), the second hinge rod (7), the rotating block (8) and the rotating shaft (9) are all embedded in the protection plate (11), the bottom end of the machine body (1) is embedded with a second hinge shaft (12), second articulated shaft (12) are articulated through third articulated rod (13) have third articulated shaft (14), and third articulated shaft (14) are embedded in base (16), fuselage (1) bottom is connected with the one end of spring (15), the other end of spring (15) is connected with base (16), fuselage (1) bottom fixedly connected with base (16).

2. The centrifugal fan facilitating bearing chamber replacement according to claim 1, wherein: the upper end and the lower end of the clamping block (4) are the same as the sliding groove (3) in shape, and the clamping block (4) forms a sliding structure through the sliding groove (3).

3. The centrifugal fan facilitating bearing chamber replacement according to claim 1, wherein: the rotating angle of the rotating block (8), the rotating shaft (9) and the switch (10) is 90 degrees, and the sliding grooves (3) on the machine body (1) and the protection plate (11) correspond to each other.

4. The centrifugal fan facilitating bearing chamber replacement according to claim 1, wherein: the front end of the machine body (1) is provided with a hole, and the diameter of the hole is the same as that of the protection plate (11).

5. The centrifugal fan facilitating bearing chamber replacement according to claim 1, wherein: the machine body (1) and the base (16) form an elastic telescopic structure through a third hinged rod (13) and a spring (15).