Ventilation component for double fans and capable of automatically switching air ducts

Abstract

A double-fan ventilation component capable of automatically switching air ducts comprises a ventilation tee joint, the ventilation tee joint comprises a main air pipe and two power air pipes, the included angle between the two power air pipes is 90 degrees, the two power air pipes are arranged in an axial symmetry mode, and the main air pipe is arranged in the middle of the connection position of the two power air pipes; a ventilation cavity is formed in the connecting position of the main air pipe and the two power air pipes. A baffle is arranged in the ventilation cavity in a rotating mode, the rotating position of the baffle is arranged on the upper portion of the connecting position of the two power air pipes, and the length and the width of the baffle on the two sides of the rotating point are equal to those of the sections of the ends of the power air pipes. According to the utility model, the potential safety hazard that a single fan is matched with a single air duct for ventilation in the prior art is solved, the automatic switching of the double air ducts is realized especially through a simple structure, the air duct switching process is free from manual control, and the equipment is low in manufacturing cost, convenient to assemble and higher in safety popularization value.

Description

Technical Field

[0001] The utility model relates to the field of underground ventilation, in particular to a ventilation component for double fans with automatic air duct switching. Background Art

[0002] Underground ventilation is the top priority of underground production safety work. Specific ventilation methods include air supply, negative pressure return air, etc. There are also methods of dust suction and dust reduction through negative pressure, all of which require the use of fan equipment. The underground air duct in the existing technology generally adopts the form of a single air duct with a single fan. In this case, once the fan is damaged or under maintenance, the air induced equipment is missing in the air duct, resulting in the failure of the ventilation function, which poses a major safety hazard. In particular, the continuous operation of the fan is not conducive to maintaining its service life, and it is also more prone to malfunction and damage. There is currently a lack of corresponding solutions to the above problems. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a dual-fan ventilation component with an automatic switching air duct that has a simple structure, flexible assembly layout, can be used in conjunction with dual fans, and can automatically close the air duct of the fan that stops rotating during use.

[0004] The equipment includes a ventilation tee, which is in an integrated form and includes a main air duct and two power air ducts, and the main air duct is connected to the power air duct chamber;

[0005] The angle between the two power air ducts is 90°, and the arrangement is axially symmetrical. The main air duct is centrally arranged at the connection position of the two power air ducts; the connection position between the main air duct and the two power air ducts is a ventilation cavity;

[0006] A baffle is rotatably arranged in the ventilation cavity, and the rotation position of the baffle is arranged at the upper part of the connection position of the two power air ducts. The baffles on both sides of the rotation point are equal in length and width to the cross-section of the end of the power air duct.

[0007] Preferably, fans are provided in the two power air ducts, at the ends of the power air ducts or in the connecting pipes of the power air ducts.

[0008] The effect achieved in this way is that when the fan in a power air duct is started, the wind blows through the baffle, and the baffle rotates to cover the other air duct, thereby achieving cavity communication between the single power air duct and the main air duct, that is, achieving single-duct ventilation, that is, the fan equipment in the two power air ducts forms one for use and one for backup, thereby achieving alternating operation of the fans in the two power air ducts and maintaining ventilation in the event of a fault.

[0009] Furthermore, a sealing rubber strip is arranged in the ventilation cavity, and the sealing rubber strip is arranged in two groups, and each group of rubber strips is arranged at the end of the power air duct, that is, the sealing of the non-ventilation air duct is formed in cooperation with the baffle.

[0010] Furthermore, the main air duct and the two power air ducts are both in the form of square tubes, and are provided with square-to-round connection ports at their ends.

[0011] Furthermore, the baffle is arranged in the ventilation cavity by a centrally arranged rotating shaft.

[0012] The beneficial effects of the utility model are as follows: the utility model solves the safety hazard of single fan combined with single duct ventilation in the prior art, especially realizes automatic switching of double ducts through a simple structure, so that the duct switching process is free from manual control, and the equipment is low in cost and easy to assemble, and has greater safety promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the external structure of a ventilation component for dual fans with automatic air duct switching according to the utility model;

[0014] Figure 2 It is a schematic cross-sectional structure diagram of a ventilation component for a dual-fan with automatic air duct switching according to the utility model;

[0015] Reference numerals:

[0016] 1- Main air duct 2- Power air duct 3- Sealing strip 4- Baffle

[0017] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0018] Reference Figure 1 The utility model discloses a dual-fan ventilation component with automatic air duct switching, comprising a ventilation tee, wherein the ventilation tee is integrally arranged, comprising a main air duct 1 and two power air ducts 2, wherein the main air duct 1 is connected to the power air duct 2 chamber;

[0019] The angle between the two power air ducts 2 is 90°, and the arrangement is axially symmetrical. The main air duct 1 is centrally arranged at the connection position of the two power air ducts 2; the connection position between the main air duct 1 and the two power air ducts 2 is a ventilation cavity;

[0020] A baffle 4 is rotatably arranged in the ventilation cavity, and the rotation position of the baffle 4 is arranged at the upper part of the connection position of the two power air ducts 2. The baffles 4 on both sides of the rotation point are equal to the cross-sectional length and width of the end of the power air duct 2.

[0021] Preferably, fans are provided in the two power air ducts 2, at the ends of the power air ducts 2 or in the connecting pipes of the power air ducts.

[0022] The effect achieved in this way is that when the fan in a power air duct 2 is started, the wind blows through the baffle 4, and the baffle 4 rotates to cover the other air duct, thereby realizing the cavity connection between the single power air duct 2 and the main air duct 1, that is, realizing single-duct ventilation, that is, the fan equipment in the two power air ducts 2 forms one for use and one for backup, thereby realizing the alternating operation of the fans in the two power air ducts 2 and maintaining ventilation in the event of a fault.

[0023] Furthermore, a sealing rubber strip 3 is arranged in the ventilation cavity, and the sealing rubber strip 3 is divided into two groups, and each group of rubber strips is arranged at the end of the power air duct 2, that is, it cooperates with the baffle plate 4 to form a seal for the non-ventilation air duct.

[0024] Furthermore, the main air duct 1 and the two power air ducts 2 are both in the form of square tubes, and are provided with square-to-round connection ports at their ends.

[0025] Furthermore, the baffle 4 is arranged in the ventilation cavity by centrally passing a rotating shaft.

[0026] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. For those skilled in the art, it is obvious that the utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic features of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the utility model is limited by the attached claims rather than the above description, and it is intended to include all changes within the meaning and scope of the equivalent elements of the claims. Any figure mark in the claims should not be regarded as limiting the claims.

[0027] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A dual-fan ventilation component with automatic air duct switching, comprising a ventilation tee, wherein the ventilation tee is integrally arranged, comprising a main air duct and two power air ducts, wherein the main air duct is connected to a power air duct chamber, and characterized in that: The angle between the two power air ducts is 90°, and the arrangement is axially symmetrical. The main air duct is centrally arranged at the connection position of the two power air ducts; the connection position between the main air duct and the two power air ducts is a ventilation cavity; A baffle is rotatably arranged in the ventilation cavity, and the rotation position of the baffle is arranged at the upper part of the connection position of the two power air ducts. The baffles on both sides of the rotation point are equal in length and width to the cross-section of the end of the power air duct.

2. A dual-fan ventilation component with automatic air duct switching according to claim 1, characterized in that: The ventilation cavity is provided with sealing rubber strips, and the sealing rubber strips are divided into two groups, and each group of rubber strips is respectively arranged at the end position of the power air duct.

3. A dual-fan ventilation component with automatic air duct switching according to claim 1, characterized in that: The main air duct and the two power air ducts are both in the form of square tubes, and are provided with square-to-round connection ports at their ends.

4. A dual-fan ventilation component with automatic air duct switching according to claim 1, characterized in that: The baffle is arranged in the ventilation cavity through a centrally arranged rotating shaft.

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