Ventilation device

Abstract

The utility model provides a ventilation device and relates to the technical field of tunnel construction ventilation, the ventilation device comprises a fan, an operation monitoring matching main body of a square block structure is arranged on the front side of the air supply end of the fan, and through the matching installation arrangement of the operation monitoring matching main body and the air supply end of the fan, when the fan breaks down and cannot generate airflow, the operation monitoring matching main body is started; under the condition that no airflow blows the canvas, the rectangular frame plate freely falls again to be perpendicular to the metal induction block, the metal induction block is reset to be located in the induction range of the induction assembly, and through induction feedback of the metal induction block and the induction assembly, the metal induction block can be reset at the first time when the draught fan breaks down. Through high-decibel warning sound of the audible and visual alarm and clear warning of light, workers are warned and reminded in time, and the problems that an existing draught fan for tunnel ventilation is not provided with a corresponding operation state monitoring structure, and if the draught fan breaks down suddenly, when fresh air cannot be input into a tunnel, timely warning and reminding cannot be achieved are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of tunnel construction ventilation, in particular to a ventilation device. Background Art

[0002] During tunnel construction, air resistance becomes excessive after a certain length of tunnel, resulting in poor ventilation and low oxygen levels. Therefore, fans are used to inject fresh air into the tunnel in real time to prevent construction accidents caused by oxygen deficiency. However, existing fans used for tunnel ventilation do not have corresponding operating status monitoring structures. If a fan suddenly fails and cannot inject fresh air into the tunnel, timely warnings cannot be provided, resulting in workers being unable to immediately notify the situation. If there is no fresh air input for an extended period of time, workers in the tunnel are very likely to suffer construction accidents due to oxygen deficiency, posing a safety hazard. Utility Model Content

[0003] The utility model relates to a ventilation device, which solves the problem that the fan currently used for tunnel ventilation has no corresponding operation status monitoring structure, and if the fan suddenly fails and cannot input fresh air into the tunnel, timely warning reminder cannot be realized.

[0004] The present invention provides a ventilation device, specifically comprising: a fan, which is fixedly mounted on the top surface of a supporting frame plate a; an operation monitoring matching body with a square block structure is provided on the front side of the air supply end of the fan, and the operation monitoring matching body is fixedly mounted on the top surface of the supporting frame plate b; a ventilation opening with a square opening structure is jointly opened between the left end face and the right end face of the operation monitoring matching body; a round square pipe is fixedly mounted on the left end face and the right end face of the operation monitoring matching body relative to the opening end of the ventilation opening, and the round square pipe located on the left side is sealingly mounted and connected to the air supply end flange of the fan; a matching protrusion is fixedly mounted on the upper part of the front side surface of the inner end and the upper part of the rear side surface of the inner end of the ventilation opening; a shaft column is rotatably mounted between the two matching protrusions through a bearing, and a rectangular frame plate is fixedly mounted on the lower side of the outer circumference of the shaft column, and a canvas is fixedly mounted on the inner frame area of ​​the rectangular frame plate.

[0005] Furthermore, a sensing protrusion is fixedly installed on the bottom surface of the inner end of the ventilation opening relative to the position directly below the shaft column; a sensing installation groove is opened on the top surface of the sensing protrusion, and a group of sensing components are fixedly installed on the bottom surface of the inner end of the sensing installation groove; the sensing component adopts a proximity switch, and the sensing end of the sensing component faces directly upwards.

[0006] Furthermore, a metal sensing block that can cooperate with the sensing component is fixedly installed at the center of the bottom end surface of the rectangular frame plate; when the rectangular frame plate is in a vertical state, the bottom end surface of the metal sensing block is higher than the top end surface of the sensing protrusion block, and at this time the metal sensing block corresponds to the position of the top open end of the sensing mounting groove, and the metal sensing block is within the sensing range of the sensing component.

[0007] Furthermore, a control body is installed on the front end face of the operation monitoring cooperation body, and the control body and the fan are set in the same power supply line; a microcontroller is installed inside the control body, the sensing component is electrically connected to the microcontroller, and an audible and visual alarm is installed on the top end face of the operation monitoring cooperation body, and the audible and visual alarm is electrically connected to the microcontroller.

[0008] Furthermore, when the metal sensing block is within the sensing range of the sensing component, the sensing component provides a feedback signal to the microcontroller, and the microcontroller controls the activation of the sound and light alarm; when the fan is in the starting state, the airflow blown out by the air supply end of the fan blows the canvas to drive the rectangular frame plate to rotate to the upper right, and at this time the metal sensing block is not within the sensing range of the sensing component.

[0009] The present invention provides a ventilation device having the following beneficial effects:

[0010] The utility model is equipped with a coordinated operation monitoring body and an air supply end of the fan, so that when the fan is operating normally, the airflow generated by the air supply end thereof passes through the ventilation opening, and will synchronously blow the canvas to drive the rectangular frame plate to rotate to the upper right, so as to change the position of the metal sensing block so that it is not within the sensing range of the sensing component; and when the fan fails and cannot generate airflow, in the absence of airflow blowing on the canvas, the rectangular frame plate will freely fall vertically again, resetting the position of the metal sensing block so that it is within the sensing range of the sensing component; and through the inductive feedback of the metal sensing block and the sensing component, the staff can be promptly warned and reminded by the high-decibel warning sound and bright clear warning of the sound and light alarm at the first time of the fan failure, so that the staff can carry out maintenance and treatment on the fan in time, so as to avoid construction accidents caused by lack of fresh air input in the tunnel and lack of oxygen for the staff working in the tunnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] In order to more clearly illustrate the technical solution of the embodiment of this utility model, the drawings of the embodiment will be briefly introduced below.

[0012] The drawings described below only relate to some embodiments of the present invention and are not intended to limit the present invention.

[0013] In the attached figure:

[0014] Figure 1 Shows an axonometric structural diagram of the present application;

[0015] Figure 2 It shows the main structure diagram of the operation monitoring system of the present application in the cross-section state;

[0016] Figure 3 Shows the application Figure 2 A schematic diagram of the partially enlarged structure at center A;

[0017] Figure 4 Shows the application Figure 2 The middle BB is a partially cutaway enlarged structural diagram;

[0018] Figure 5 Shows a system block diagram of the present application;

[0019] Reference Signs List

[0020] 1. Fan; 101. Support frame a; 2. Operation monitoring matching body; 201. Support frame b; 202. Sound and light alarm; 203. Round and square pipe; 204. Control body; 205. Ventilation opening; 206. Matching protrusion; 207. Bearing; 208. Sensing protrusion block; 209. Sensing mounting slot; 2010. Sensing component; 2011. Microcontroller; 3. Shaft column; 301. Rectangular frame; 302. Canvas; 303. Metal sensing block. DETAILED DESCRIPTION

[0021] To make the purpose, technical solution, and advantages of this practical embodiment more clear, the technical solution of this practical embodiment will be clearly and completely described below in conjunction with the drawings of this practical embodiment. Obviously, the described embodiment is only a part of the embodiment of this practical embodiment, not all of the embodiments. Based on the described embodiment of this practical embodiment, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this practical embodiment.

[0022] Example: Please refer to Figures 1 to 5 :

[0023] The present invention provides a ventilation device, comprising: a fan 1, which is fixedly mounted on the top surface of a support frame a101; an operation monitoring and cooperating body 2 having a square block structure is provided on the front side of the air supply end of the fan 1, and the operation monitoring and cooperating body 2 is fixedly mounted on the top surface of the support frame b201; a ventilation opening 205 having a square opening structure is provided between the left and right end surfaces of the operation monitoring and cooperating body 2; a round square pipe 203 is fixedly mounted on each of the left and right end surfaces of the operation monitoring and cooperating body 2 relative to the opening end of the ventilation opening 205, and the round square pipe 203 on the left side is sealed and mounted to the flange of the air supply end of the fan 1; A matching protrusion 206 is fixedly installed on the upper part of the front side surface of the inner end and the upper part of the rear side surface of the inner end of the ventilation opening 205; a shaft column 3 is mounted between the two matching protrusions 206 via a bearing 207 for common rotation, and a rectangular frame plate 301 is fixedly installed on the lower side of the outer circumference of the shaft column 3, and a canvas 302 is fixedly installed on the inner frame area of ​​the rectangular frame plate 301; a sensing protrusion block 208 is fixedly installed on the bottom surface of the inner end of the ventilation opening 205 relative to the part directly below the shaft column 3; a sensing mounting groove 209 is opened on the top surface of the sensing protrusion block 208, and a group of sensing components 2010 are fixedly installed on the bottom surface of the inner end of the sensing mounting groove 209; the sensing component 201 0 adopts a proximity switch, and the sensing end of the sensing component 2010 faces upward; a metal sensing block 303 that can cooperate with the sensing component 2010 is fixedly installed at the center of the bottom end surface of the rectangular frame plate 301; when the rectangular frame plate 301 is in a vertical state, the bottom end surface of the metal sensing block 303 is higher than the top surface of the sensing protrusion block 208, and at this time the metal sensing block 303 corresponds to the position of the top open end of the sensing installation groove 209, and the metal sensing block 303 is within the sensing range of the sensing component 2010; the front end surface of the operation monitoring and matching main body 2 is installed with a control main body 204, and the control main body 204 is set with the same power supply line as the fan 1; a micro Controller 2011, the sensing component 2010 is electrically connected to the microcontroller 2011, and an audible and visual alarm 202 is installed on the top surface of the operation monitoring cooperation main body 2, and the audible and visual alarm 202 is electrically connected to the microcontroller 2011; when the metal sensing block 303 is within the sensing range of the sensing component 2010, the sensing component 2010 feedbacks a signal to the microcontroller 2011, and the microcontroller 2011 controls the audible and visual alarm 202 to start; when the fan 1 is in the starting state, the air flow blown out by the air supply end of the fan 1 blows the canvas 302 to drive the rectangular frame plate 301 to rotate to the upper right, and at this time the metal sensing block 303 is not within the sensing range of the sensing component 2010.

[0024] The working principle of this embodiment is as follows:

[0025] The right-hand side radiator 203 is sealed and connected to the air delivery duct, which extends deep into the tunnel under construction. When ventilation is required, the fan 1 is started, and the air flow generated by the fan 1 is delivered into the tunnel under construction through the ventilation opening 205 and the air delivery duct to provide fresh air.

[0026] When the fan 1 is operating normally, the airflow generated by the fan 1 passes through the ventilation opening 205, blowing the canvas 302 to drive the rectangular frame plate 301 to rotate to the upper right, so that the metal sensing block 303 is not within the sensing range of the sensing component 2010. When the fan 1 fails and cannot generate airflow, there is no airflow blowing on the canvas 302, and the rectangular frame plate 301 will fall vertically again. At this time, the metal sensing block 303 corresponds to the position of the top open end of the sensing installation slot 209, and the metal sensing block 303 is within the sensing range of the sensing component 2010. When the metal sensing block 303 is within the sensing range of the sensing component 2010, the sensing component 2010 feeds back a signal to the microcontroller 2011, and the microcontroller 2011 controls the sound and light alarm 202 to start. Through the high-decibel warning sound and bright clear warning of the sound and light alarm 202, it is helpful to provide timely warnings to the staff as soon as the fan 1 fails, so that the staff can carry out maintenance and treatment on it in time, so as to avoid construction accidents caused by lack of fresh air input in the tunnel and lack of oxygen for the workers working in the tunnel.

[0027] In this article, there are several points to note:

[0028] 1. The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0029] 2. In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0030] The above are only specific implementation methods of the present disclosure, but the protection scope of the present disclosure is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this disclosure, and they should all be covered by the protection scope of the present disclosure.

Claims

1. A ventilation device, characterized in that: include: A fan (1) is fixedly mounted on the top surface of a supporting frame plate a (101); an operation monitoring matching body (2) having a square block structure is provided on the front side of the air supply end of the fan (1), and the operation monitoring matching body (2) is fixedly mounted on the top surface of the supporting frame plate b (201); a ventilation opening (205) having a square opening structure is provided between the left end surface and the right end surface of the operation monitoring matching body (2); the left end surface and the right end surface of the operation monitoring matching body (2) are fixedly mounted relative to the opening end of the ventilation opening (205). A round square pipe (203) is installed, and the round square pipe (203) located on the left side is sealed and connected to the air supply end flange of the fan (1); a matching protrusion (206) is fixedly installed on the upper part of the front side of the inner end and the upper part of the rear side of the inner end of the ventilation opening (205); a shaft column (3) is rotatably installed between the two matching protrusions (206) through a bearing (207), and a rectangular frame plate (301) is fixedly installed on the lower side of the outer peripheral surface of the shaft column (3), and a canvas (302) is fixedly installed on the inner frame area of ​​the rectangular frame plate (301).

2. A ventilation device according to claim 1, characterized in that: A sensing protrusion (208) is fixedly mounted on the bottom surface of the inner end of the ventilation opening (205) relative to the position directly below the shaft column (3); a sensing mounting groove (209) is provided on the top surface of the sensing protrusion (208), and a group of sensing components (2010) are fixedly mounted on the bottom surface of the inner end of the sensing mounting groove (209); the sensing components (2010) are proximity switches, and the sensing end of the sensing components (2010) faces directly upwards.

3. A ventilation device according to claim 2, characterized in that: A metal sensing block (303) capable of sensing and cooperating with the sensing component (2010) is fixedly mounted at the center of the bottom end surface of the rectangular frame plate (301); when the rectangular frame plate (301) is in a vertical position, the bottom end surface of the metal sensing block (303) is higher than the top end surface of the sensing protrusion block (208), and at this time, the metal sensing block (303) corresponds to the position of the top open end of the sensing installation groove (209), and the metal sensing block (303) is within the sensing range of the sensing component (2010).

4. A ventilation device according to claim 3, characterized in that: The front end surface of the operation monitoring cooperation body (2) is equipped with a control body (204), and the control body (204) and the fan (1) are provided with the same power supply line; a microcontroller (2011) is installed inside the control body (204), and the sensing component (2010) is electrically connected to the microcontroller (2011); the top end surface of the operation monitoring cooperation body (2) is equipped with an audible and visual alarm (202), and the audible and visual alarm (202) is electrically connected to the microcontroller (2011).

5. A ventilation device according to claim 4, characterized in that: When the metal sensing block (303) is within the sensing range of the sensing component (2010), the sensing component (2010) provides a feedback signal to the microcontroller (2011), and the microcontroller (2011) controls the sound and light alarm (202) to start; when the fan (1) is in the starting state, the air flow blown out from the air supply end of the fan (1) blows the canvas (302) to drive the rectangular frame plate (301) to rotate to the upper right, and at this time the metal sensing block (303) is not within the sensing range of the sensing component (2010).

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