CN216767798U - Be applied to centrifugal fan of dust protected in grit workshop - Google Patents

Abstract

The utility model relates to the technical field of centrifugal fans and discloses a dustproof centrifugal fan applied to a sand workshop. This be applied to dust protected centrifugal fan in grit workshop, through be provided with the striking subassembly in the air-supply line, consequently striking pole in the striking subassembly can be continuous in the use strikes the installing support, makes installing support and filter screen produce the vibrations power like this, and accumulational dust can be shaken down under the vibrations power on the filter screen like this, has avoided the dust gathering to cause the condition that the filter screen mesh blockked up on the filter screen in long-time use, has consequently ensured centrifugal fan result of use.

Description

Be applied to centrifugal fan of dust protected in grit workshop

Technical Field

The utility model relates to the technical field of centrifugal fans, in particular to a dustproof centrifugal fan applied to a sand workshop.

Background

The centrifugal fan is widely used for ventilation and air induction in mine workshops, for example, the centrifugal fan is used for ventilation in sand production workshops, for example, the centrifugal fan is 4-72-A in model, the centrifugal fan conveys air and other non-self-flammable, harmless to human bodies and non-corrosive gases to steel, but a large amount of sundries and dust exist in the working environment in a common sand production workshop, therefore, a filter screen is arranged at an air inlet of the centrifugal fan to block the dust, but the dust in the air is easily adsorbed on meshes of the filter screen in the long-time use process, so that the normal use effect of the fan is influenced, and meanwhile, the cleaning trouble is brought to workers.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

Aiming at the defects of the prior art, the utility model provides a dustproof centrifugal fan applied to a sand workshop, which solves the problem that dust is easy to accumulate on a filter screen in the long-time use process.

(II) technical scheme

In order to achieve the purpose, the utility model provides the following technical scheme: a dustproof centrifugal fan applied to a sand workshop comprises a fan main body, wherein an air inlet pipe is arranged on the front side surface of the fan main body, an installation support with a circular ring-shaped structure is arranged in the air inlet pipe, a filter screen is fixedly connected to the inner ring of the installation support, and an impact assembly is arranged on the inner wall of the air inlet pipe and is arranged on the inner side of the installation support;

the striking subassembly includes that the structure is the connection slide of "T" word form, has seted up on the inner wall of air-supply line and has connected the spout, connect the montant of slide extend into connect the spout in and with be connected spout sliding connection, connect the upper surface fixed connection of slide and have a wind board, the right side fixed surface who connects the slide diaphragm is connected with the impact bar with installing support left side surface contact.

Preferably, a connecting slide bar is fixedly connected between the inner walls of the left side and the right side of the connecting slide groove, a sleeve slide ring movably sleeved on the connecting slide bar is fixedly connected at the lower end of the connecting slide bar vertical bar, and a slide groove connected with the connecting slide bar in a sliding manner is formed in the sleeve slide ring.

Preferably, the inner wall of the left side of the connecting chute is fixedly connected with a first magnet fixedly sleeved on the connecting slide rod, and the surface of the left side of the sleeved slip ring is fixedly connected with a second magnet movably sleeved on the connecting slide rod and connected with the connecting slide rod in a sliding manner.

Preferably, the opposing faces of the first magnet and the second magnet are set to have the same magnetic pole.

Preferably, two limiting sliding grooves are formed in the inner wall of the air inlet pipe, and two connecting pulleys in sliding connection with the two limiting sliding grooves are arranged on the lower surface of the transverse plate of the connecting sliding plate respectively.

Preferably, the structure of the wind-driven plate is arc-shaped.

(III) advantageous effects

Compared with the prior art, the utility model provides a dustproof centrifugal fan applied to a sand workshop, which has the following beneficial effects:

1. the dustproof centrifugal fan applied to the sand workshop has the advantages that the impact component is arranged in the air inlet pipe, so that the impact rod in the impact component can continuously impact the mounting bracket in the using process, the mounting bracket and the filter screen generate vibration force, the dust accumulated on the filter screen can be shaken off under the vibration force, the condition that the meshes of the filter screen are blocked due to the fact that the dust is accumulated on the filter screen in the long-time using process is avoided, the next using effect of the filter screen is ensured, the using effect of the centrifugal fan is ensured, meanwhile, the power source of the mechanism is based on aerodynamics, the conversion of natural resources is realized by using a simple and convenient structure, the driving force brought by the natural resources is used for cleaning the meshes on the filter screen, the utilization of the resources which are not living is achieved, the structure is simple, the implementation cost is low, and the dustproof centrifugal fan has good environmental protection value, the waste of resources is avoided.

2. This be applied to dust protected centrifugal fan in grit workshop, through be provided with the connection pulley on connecting the slide, make the connection pulley form the supporting effect to connecting the slide like this, avoided the condition that turns on one's side to appear under the pnematic board air current promotes like this, further ensured the stability of connecting the slide when sliding, this kind of mode has also reduced the produced frictional force of connecting the slide when sliding simultaneously, has further ensured the smoothness nature of connecting the slide when the displacement, has prevented the dead risk of mechanical card.

Drawings

FIG. 1 is a schematic view of a dustproof centrifugal fan according to the present invention;

FIG. 2 is a schematic view of an air inlet duct according to the present invention;

FIG. 3 is a schematic cross-sectional view of an air inlet duct according to the present invention;

fig. 4 is an enlarged view of a portion a in fig. 3.

In the figure: 1, a fan main body, 2 air inlet pipes, 3 mounting brackets, 4 filter screens, 5 impact components, 51 connecting sliding grooves, 52 connecting sliding plates, 53 air moving plates, 54 connecting sliding rods, 55 sleeving sliding rings, 56 first magnets, 57 second magnets, 58 limiting sliding grooves, 59 connecting pulleys and 510 impact rods.

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. 1-4, the present invention provides a new technical solution: a dustproof centrifugal fan applied to a sand workshop comprises a fan body 1, wherein an air inlet pipe 2 is arranged on the front side surface of the fan body 1, an installation support 3 with a circular ring-shaped structure is arranged in the air inlet pipe 2, the installation support 3 can be installed in the air inlet pipe 2 through bolts or in a welding mode in the embodiment, and a filter screen 4 is fixedly connected to the inner ring of the installation support 3, so that when the centrifugal fan is started, an internal fan is started to suck external air into the fan and finally an air outlet pipe is arranged for discharging the external air, the filter screen 4 can block impurities in the sucked air, and dust is prevented from entering the fan to influence the service life of the fan;

furthermore, in order to prevent the accumulation of dust in the long-term use of the filter screen 4, a plurality of impact assemblies 5 are disposed on the inner wall of the air inlet duct 2, the number of the impact assemblies 5 is not limited by the number of the impact assemblies 5, the impact assemblies 5 are disposed on the inner wall of the air inlet duct 2 in a circumferential array manner, the impact assemblies 5 are disposed on the inner side of the mounting bracket 3, each impact assembly 5 includes a connecting sliding plate 52 having a "T" shape, the inner wall of the air inlet duct 2 is provided with connecting sliding grooves 51 having the same number as the impact assemblies 5, the vertical rods of the connecting sliding plates 52 extend into the connecting sliding grooves 51 and are slidably connected with the connecting sliding grooves 51, and the upper surface of the connecting sliding plate 52 is fixedly connected with a pneumatic plate 53 having an arc shape, so that when the fan operates, external air enters the air inlet duct 2 through the filter screen 4, the air flowing in this way forms thrust on the air-driven plate 53, so that the connecting sliding plate 52 is driven to slide to the left side in the connecting sliding chute 51 under the action of the thrust;

further, a connecting slide bar 54 is fixedly connected between the inner walls of the left and right sides of the connecting slide slot 51, the lower end of the vertical bar of the connecting slide plate 52 is fixedly connected with a sleeve slide ring 55 movably sleeved on the connecting slide bar 54, a slide slot slidably connected with the connecting slide bar 54 is formed on the sleeve slide ring 55, a first magnet 56 fixedly sleeved on the connecting slide bar 54 is fixedly connected on the inner wall of the left side of the connecting slide slot 51, a second magnet 57 movably sleeved on the connecting slide bar 54 and slidably connected with the connecting slide bar 54 is fixedly connected on the surface of the left side of the sleeve slide ring 55, in the embodiment, the opposite surfaces of the first magnet 56 and the second magnet 57 are set to be the same magnetic pole, such as positive magnetic pole or negative magnetic pole, so that according to the principle that like poles of magnets repel each other, the second magnet 57 is in a state of being far away from the first magnet 56 under the action of repulsive force, so that the sleeve slide ring 55 is located at the right end of the connecting slide bar 54, therefore, when the wind-driven plate 53 is pushed by the airflow to move leftward, the slip ring 55 synchronously drives the second magnet 57 to move leftward on the connecting slide rod 54, so that the distance between the second magnet 57 and the first magnet 56 is shortened, and the repulsion force generated according to the closer distance between the like magnets is larger, so that the counterthrust generated by the repulsion force is larger than the thrust of the airflow after the second magnet 57 is moved for a certain distance, and the second magnet 57 is restored to the initial state under the repulsion force;

furthermore, the right side surface of the cross plate of the connecting sliding plate 52 is fixedly connected with the striking rod 510 which is in contact with the left side surface of the mounting bracket 3, so that when the second magnet 57 pushes the sleeve sliding ring 55 and the connecting sliding plate 52 to the initial position, the striking rod 510 can strike the mounting bracket 3, the mounting bracket 3 and the filter screen 4 generate vibration force, and dust accumulated on the filter screen 4 can be shaken off under the vibration force, so that the dust is prevented from being accumulated on the filter screen 4 for a long time to influence the use effect of the filter screen 4;

furthermore, two limiting sliding chutes 58 which are positioned at the front side and the rear side of the connecting sliding chute 51 are respectively formed in the inner wall of the air inlet pipe 2, two connecting pulleys 59 which are slidably connected with the two limiting sliding chutes 58 are respectively arranged on the lower surface of the transverse plate of the connecting sliding plate 52, and the connecting pulleys 59 form a supporting effect on the connecting sliding plate 52 in this way, so that the condition of side turning under the pushing of the air current of the air-driven plate 53 is avoided, the stability of the connecting sliding plate 52 during sliding is further ensured, meanwhile, the friction force generated by the connecting sliding plate 52 during sliding is also reduced in this way, the smoothness of the connecting sliding plate 52 during displacement is further ensured, and the risk of mechanical clamping is prevented.

The working principle is as follows: when the dustproof centrifugal fan applied to the sand workshop is used, when the centrifugal fan is started, the internal fan starts to suck external air into the fan, the external air enters the air inlet pipe 2 through the filter screen 4, the flowing air forms thrust on the pneumatic plate 53, the connecting sliding plate 52 is driven to slide to the left side in the connecting sliding groove 51 under the action of the thrust, the sleeve sliding ring 55 synchronously drives the second magnet 57 to move to the left on the connecting sliding rod 54, and the distance between the second magnet 57 and the first magnet 56 is shortened;

when the centrifugal fan stops operating, the wind-moving plate 53 loses the thrust, so that the repulsive force is larger than the thrust of the airflow, and the second magnet 57 returns to the initial state under the repulsive force, so that the striking rod 510 strikes the mounting bracket 3, so that the mounting bracket 3 and the filter screen 4 generate a vibration force, and the dust accumulated on the filter screen 4 is shaken down under the vibration force.

Claims (6)

1. The utility model provides a be applied to dust protected centrifugal fan in grit workshop, includes fan main part (1), its characterized in that: an air inlet pipe (2) is arranged on the front side surface of the fan main body (1), an installation support (3) with a circular ring-shaped structure is arranged in the air inlet pipe (2), a filter screen (4) is fixedly connected to the inner ring of the installation support (3), an impact assembly (5) is arranged on the inner wall of the air inlet pipe (2), and the impact assembly (5) is arranged on the inner side of the installation support (3);

striking subassembly (5) including the structure for connecting slide (52) of "T" style of calligraphy, seted up on the inner wall of air-supply line (2) and connected spout (51), the montant of connecting slide (52) extends into in connecting spout (51) and with be connected spout (51) sliding connection, the last fixed surface of connecting slide (52) is connected with wind movable plate (53), the right side fixed surface of connecting slide (52) diaphragm is connected with and installing support (3) left side surface contact's impact pole (510).

2. The dust protected centrifugal fan for use in a sand plant of claim 1, wherein: the connecting slide rod (54) is fixedly connected between the inner walls of the left side and the right side of the connecting slide groove (51), the lower end of the vertical rod of the connecting slide plate (52) is fixedly connected with a sleeve sliding ring (55) which is movably sleeved on the connecting slide rod (54), and a slide groove which is connected with the connecting slide rod (54) in a sliding manner is formed in the sleeve sliding ring (55).

3. The dust protected centrifugal fan for use in a sand plant of claim 2, wherein: a first magnet (56) fixedly sleeved on the connecting slide rod (54) is fixedly connected to the inner wall of the left side of the connecting sliding groove (51), and a second magnet (57) movably sleeved on the connecting slide rod (54) and slidably connected with the connecting slide rod (54) is fixedly connected to the surface of the left side of the sleeved sliding ring (55).

4. A dust protected centrifugal fan for use in a sand plant according to claim 3 wherein: the opposing surfaces of the first magnet (56) and the second magnet (57) are provided with the same magnetic pole.

5. The dust protected centrifugal fan for use in a sand plant of claim 1, wherein: two limiting sliding grooves (58) are formed in the inner wall of the air inlet pipe (2), and two connecting pulleys (59) which are in sliding connection with the two limiting sliding grooves (58) are respectively arranged on the lower surface of a transverse plate of the connecting sliding plate (52).

6. The dust protected centrifugal fan for use in a sand plant of claim 1, wherein: the structure of the wind-driven plate (53) is arc-shaped.

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