Tunnel ventilation fan

Abstract

The utility model relates to the technical field of tunnel ventilation fans, in particular to a tunnel ventilation fan which comprises a ventilation pipeline, a ventilation fan is installed on the front side of the interior of the ventilation pipeline, and dustproof net plates are arranged in the ventilation pipeline and located on the rear side of the ventilation fan in a front-back symmetry mode. A dustproof net replacing mechanism and a dustproof net brushing mechanism are symmetrically arranged on the outer side of the ventilation pipeline and at the position corresponding to the dustproof net plate in the front-back direction, and the problem that the self-cleaning capacity of the dustproof net is not high due to the fact that the surface humidity of dust is high and the adhesion of the dust is high is solved; the phenomenon that the surface of the dustproof net at the air inlet of the tunnel ventilation fan cannot be rapidly removed is effectively prevented, through the front set of dustproof net plates and the rear set of dustproof net plates, each dustproof net plate can be driven by the dustproof net replacing mechanism to automatically ascend and descend, the two sets of dustproof net plates can be cleaned in a staggered mode, normal ventilation can still be conducted in the cleaning process, and the cleaning efficiency is improved. And time, efficiency and cost are greatly saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a tunnel ventilation fan technical field, concretely is a tunnel ventilation fan. BACKGROUND

[0002] The conventional tunnel ventilation fan prevents the dust screen at the air inlet from being blocked, generally only uses the mechanical assembly to drive the scraper to scrape off the dust on the surface of the dust screen, but in actual use, due to the heavy humidity in the tunnel, the surface humidity of the dust is high, so that when the scraper scrapes off the dust on the surface of the dust screen, the dust is strongly adhered due to the high surface humidity, and the scraper cannot effectively scrape off the dust adhered to the surface of the dust screen, and in addition, the ventilation fan needs to be closed when cleaning the dust screen completely, which leads to normal ventilation and air exchange, or another set of ventilation fan is used, both of which have disadvantages, reduce ventilation efficiency and increase cost.

[0003] Therefore, it is particularly important to design a tunnel ventilation fan to change the above technical defects and improve overall practicability. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at providing a tunnel ventilation fan to solve the problems in the above background technology.

[0005] To achieve the above object, the utility model provides the following technical scheme:

[0006] A tunnel ventilation fan, comprising a ventilation duct, a ventilation fan is installed on the front side of the inside of the ventilation duct, a dust screen plate is symmetrically arranged before and after the inside of the ventilation duct and the rear side of the ventilation fan, a dust screen replacement mechanism and a dust screen cleaning mechanism are symmetrically arranged before and after the position corresponding to the dust screen plate on the outside of the ventilation duct;

[0007] The dust screen replacement mechanism comprises a support rod sleeve fixed on the left and right side walls of the ventilation duct, a lifting inner rod is slidably connected in the inside of the support rod sleeve, a rack extending along the height direction of the lifting inner rod is fixed on the outside of the lifting inner rod on the right side, a gear seat is arranged on the top of the outside of the support rod sleeve on the right side, a forward and reverse motor is installed on the front side of the gear seat, the driving end of the forward and reverse motor penetrates the inside of the gear seat and is connected with a gear meshing with the rack, and a lifting top plate is fixed on the top of the lifting inner rod;

[0008] The dustproof net cleaning mechanism comprises an electric push rod fixed at the left and right sides of the ventilation duct and located at the rear side of the support rod sleeve, a connecting plate is fixed at the driving end of the electric push rod, a scraper plate used in cooperation with the dustproof net plate is arranged at the front side of the connecting plate, a water collecting tank is fixedly installed at the rear side of the connecting plate, a water outlet pipe is connected to the right side of the top of the water collecting tank, a water valve is connected to one end of the water outlet pipe, and a plurality of groups of mist-shaped spray heads with the same interval are connected to the top of the water outlet pipe.

[0009] As a preferred scheme of the present application, the outer side of the ventilation duct is provided with a controller, wherein the controller is connected with the ventilation fan, the forward and reverse motor, the electric push rod and the water valve through wires, and the connection mode is electrical connection.

[0010] As a preferred scheme of the present application, the external structure size of the dustproof net plate is adapted to the internal structure size of the ventilation duct, the dustproof net plate and the ventilation duct are designed as a sliding structure, and a rectangular groove is symmetrically formed at the top of the ventilation duct and corresponding to the position of the dustproof net plate.

[0011] As a preferred scheme of the present application, the dustproof net plate extends out of the rectangular groove at the top and is fixedly connected with the bottom of the lifting top plate.

[0012] As a preferred scheme of the present application, the scraper plate is a rubber scraper plate, and the side away from the connecting plate is designed to be attached to the surface of the dustproof net plate.

[0013] As a preferred scheme of the present application, the spray head direction of the mist-shaped spray head is towards the side of the dustproof net plate.

[0014] Compared with the prior art, the present application has the following advantages:

[0015] 1、In the present application, the tunnel ventilation fan is provided, which solves the problem that the dustproof net has poor self-cleaning ability due to the strong adhesion of dust caused by high surface humidity, and effectively prevents the phenomenon that the dustproof net surface at the air inlet of the tunnel ventilation fan cannot be quickly removed.

[0016] 2、In the present application, the tunnel ventilation fan is provided, and the front and rear groups of dustproof net plates are provided, each dustproof net plate can be automatically lifted under the drive of the dustproof net replacement mechanism, and the two groups of dustproof net plates can be staggered for cleaning, and normal ventilation can still be carried out during the cleaning process, greatly saving time efficiency and cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 It is a perspective view of the overall structure of the present application;

[0018] Fig. 2 It is a structure diagram of the dustproof net replacement mechanism of the present application;

[0019] Fig. 3 This is the structural diagram of the dust screen cleaning mechanism of this utility model.

[0020] In the figure: 1. Ventilation duct; 2. Ventilation fan; 3. Dust screen; 4. Dust screen replacement mechanism; 401. Support rod sleeve; 402. Lifting inner rod; 403. Rack; 404. Gear seat; 405. Forward and reverse motor; 406. Gear; 407. Lifting top plate; 5. Dust screen cleaning mechanism; 501. Electric push rod; 502. Connecting plate; 503. Scraper; 504. Water collecting tank; 505. Water outlet pipe; 506. Water valve; 507. Mist nozzle. DETAILED DESCRIPTION

[0021] The following will combine the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings, and several embodiments of the present invention are given. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] It should be noted that when an element is referred to as being "fixed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used in this article are for illustrative purposes only.

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terms used herein in the specification of this invention are for the purpose of describing specific embodiments only and are not intended to limit this invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0025] For examples, see Figs. 1-3 , the utility model provides a technical solution:

[0026] The utility model provides a tunnel ventilation fan, including ventilation pipeline 1, the front side installation ventilation fan 2 in the inside of ventilation pipeline 1, the inside of ventilation pipeline 1 and the back side of ventilation fan 2 are symmetrically provided with dust screen plate 3, the outside of ventilation pipeline 1 and the position of corresponding dust screen plate 3 are symmetrically provided with dust screen replacement mechanism 4 and dust screen cleaning mechanism 5,

[0027] Wherein the outside structure size of dust screen plate 3 is adapted to the inside structure size of ventilation pipeline 1, and the sliding structure design is formed between dust screen plate 3 and ventilation pipeline 1, the top of ventilation pipeline 1 and the position of corresponding dust screen plate 3 are symmetrically provided with rectangular groove, for the lifting of dust screen plate 3.

[0028] In this embodiment, please refer to Fig. 2 Dust screen replacement mechanism 4 includes support rod sleeve 401 fixed on the left and right two side walls of ventilation pipeline 1, lifting inner rod 402 is slidably connected in the inside of support rod sleeve 401, the outside of lifting inner rod 402 located at the right side is fixed with rack 403 extending along the height direction of lifting inner rod 402, gear seat 404 is arranged on the top of the outside of support rod sleeve 401 located at the right side, positive and negative motor 405 is installed on the front side of gear seat 404, the drive end of positive and negative motor 405 penetrates the inside of gear seat 404 and is connected with gear 406 meshing with rack 403, lifting top plate 407 is fixed on the top of lifting inner rod 402.

[0029] Wherein the top of dust screen plate 3 extends out of rectangular groove and is fixedly connected with the bottom of lifting top plate 407.

[0030] In this embodiment, please refer to Fig. 3 Dust screen cleaning mechanism 5 includes electric push rod 501 fixed on the left and right sides of ventilation pipeline 1 and located at the back side of support rod sleeve 401, connecting plate 502 is fixed on the drive end of electric push rod 501, scraper 503 is arranged on the front side of connecting plate 502 and is used in cooperation with dust screen plate 3, water tank 504 is fixedly installed on the back side of connecting plate 502, water outlet pipe 505 is connected to the right side of the top of water tank 504, water valve 506 is connected to one end of water outlet pipe 505, a plurality of groups of interval same fog-shaped spray heads 507 are connected to the top of water outlet pipe 505.

[0031] Wherein the outside of ventilation pipeline 1 is provided with a controller, wherein the controller is connected with ventilation fan 2, positive and negative motor 405, electric push rod 501, water valve 506 through wire respectively, and the connection mode is electric connection, scraper 503 is rubber scraper, and dust screen plate 3 is not easily damaged, the side, away from connecting plate 502, of scraper 503 is designed to be attached to the surface of dust screen plate 3, can scrape the dust and impurities adhered on dust screen plate 3, and the spray head direction of fog-shaped spray head 507 is towards the side of dust screen plate 3.

[0032] The utility model work flow: in use by ventilation fan 2 drive makes air from outside come through dust screen board 3, two group dust screen board 3 is above and below staggered place, the impurity dust in air is isolated by dust screen board 3, when needing to clean dust screen board 3, positive and negative motor 405 start drive gear 406 rotation, thereby with rack 403 meshing cooperation drive lift inner rod 402 in support pole sleeve 401 inside rise, thereby drive lift up top plate 407 drive dust screen board 3 at the position of rectangular recess until completely rise, and another group dust screen board 3 then reverse operation inserts to the inside of ventilation duct 1, then corresponding rise state dust screen board 3 one side electric push rod 501 start drive connecting plate lift, make scraper 503 clean and brush the surface of dust screen board 3, same time water valve 506 start the water in water collecting tank 504 inside guide export water pipe 505, by mist spray head 507 spray to dust screen board 3 clean, under the cleaning of water mist, more easily scrape off the dust adhered, two group dust screen boards can stagger clean, still can carry out normal ventilation in the cleaning process, greatly save time efficiency and cost.

[0033] Although the embodiments of the utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made thereto without departing from the principles and spirit of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. A tunnel ventilation fan, comprising a ventilation duct (1), characterized in that: A ventilation fan (2) is installed on the front side of the ventilation duct (1); a dust screen plate (3) is symmetrically arranged in the front and rear sides of the ventilation fan (2) inside the ventilation duct (1); and a dust screen replacement mechanism (4) and a dust screen cleaning mechanism (5) are symmetrically arranged in the front and rear sides of the ventilation duct (1) at the position corresponding to the dust screen plate (3); The dust screen replacement mechanism (4) comprises a support rod sleeve (401) fixed on the left and right side walls of the ventilation duct (1); the interior of the support rod sleeve (401) is slidably connected to a lifting inner rod (402); a rack (403) extending along the height direction of the lifting inner rod (402) is fixed to the outside of the lifting inner rod (402) on the right side; a gear seat (404) is provided on the top of the outside of the support rod sleeve (401) on the right side; a forward and reverse motor (405) is installed on the front side of the gear seat (404); a driving end of the forward and reverse motor (405) passes through the interior of the gear seat (404) and is connected to a gear (406) meshing with the rack (403); a lifting top plate (407) is fixed to the top of the lifting inner rod (402); The dust screen cleaning mechanism (5) comprises an electric push rod (501) fixed on the left and right sides of the ventilation duct (1) and located at the rear side of the support rod sleeve (401); a connecting plate (502) is fixed to the driving end of the electric push rod (501); a scraper (503) used in conjunction with the dust screen plate (3) is provided on the front side of the connecting plate (502); a water collecting box (504) is fixedly installed on the rear side of the connecting plate (502); a water outlet pipe (505) is connected to the right side of the top of the water collecting box (504); one end of the water outlet pipe (505) is connected to a water valve (506); and the top of the water outlet pipe (505) is connected to a plurality of groups of mist nozzles (507) with the same interval.

2. A tunnel ventilation fan according to claim 1, characterized in that: A controller is provided on the outside of the ventilation duct (1), wherein the controller is connected to the ventilation fan (2), the forward and reverse motor (405), the electric push rod (501), and the water valve (506) respectively through wires, and the connection method is electrical connection.

3. The tunnel ventilation fan according to claim 1, characterized in that: The external structure size of the dustproof screen plate (3) is adapted to the internal structure size of the ventilation duct (1); a sliding structure design is adopted between the dustproof screen plate (3) and the ventilation duct (1); rectangular grooves are symmetrically provided at the top of the ventilation duct (1) and at the position corresponding to the dustproof screen plate (3).

4. A tunnel ventilation fan according to claim 3, characterized in that: A rectangular groove extends from the top of the dustproof screen plate (3) and is fixedly connected to the bottom of the lifting top plate (407).

5. The tunnel ventilation fan according to claim 1, characterized in that: The scraper (503) is a rubber scraper, and the side of the scraper (503) away from the connecting plate (502) is designed to fit the surface of the dustproof screen plate (3).

6. The tunnel ventilation fan according to claim 1, characterized in that: The spray nozzle (507) is oriented toward one side of the dustproof screen plate (3).

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