Building ventilation pipeline anti-blocking device

Abstract

The utility model relates to the technical field of building ventilation pipelines, and provides a building ventilation pipeline anti-blocking device which comprises a ventilation pipe, connecting flanges are arranged at the two ends of the ventilation pipe, a filter box is arranged on one sides of the connecting flanges, a first filter plate is arranged on one side in the filter box, and a movable filter plate is arranged in the first filter plate. A connecting frame is arranged on the periphery of the outer portion of the movable filter plate, a spring ejector rod is arranged on one side of the connecting frame, and one end of the spring ejector rod is connected with the first supporting rod. According to the air purifier, the first filter plate and the second filter plate are arranged, the movable filter plate is arranged in the first filter plate, the electric telescopic rod is connected to the movable filter plate, the electric telescopic rod can drive the movable filter plate to move to open the first filter plate, and at the moment, the second filter plate is used for filtering air; and meanwhile, the alarm can give an alarm to remind a worker to clean or replace the filter plate I and the movable filter plate in time, so that the blocked filter plate can be accurately cleaned, and the labor cost is saved.

Description

Technical Field

[0001] The utility model relates to the technical field of building ventilation ducts, in particular to a building ventilation duct anti-blocking device. Background Art

[0002] Ventilation duct is the abbreviation of ventilation pipe, which is a metal or non-metal pipe used in ventilation and air-conditioning engineering of industrial and civil buildings. Ventilation duct is a kind of municipal infrastructure designed to allow air circulation and reduce the concentration of harmful gases.

[0003] For example, CN219607284U discloses an anti-blocking device for building ventilation ducts, which solves the problem that when existing building ventilation ducts are in use, dust from the outside easily adheres to the air inlet of the ventilation ducts, and dust easily accumulates if the staff does not clean it in time. In the long run, the ventilation ducts are easily blocked, thus affecting the use effect. However, the filter plate needs to be manually cleaned regularly, and it is impossible to determine whether the filter plate is blocked before manual inspection and cleaning, so that the filter plate that is not blocked will also be disassembled for inspection or cleaning, which will waste a lot of labor costs.

[0004] Therefore, this solution specifically proposes a building ventilation duct anti-blocking device to solve the above problems. Utility Model Content

[0005] In order to overcome the defects of the prior art, the purpose of the utility model is to provide a building ventilation duct anti-blocking device which can timely remind the staff and accurately clean the filter plate.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is implemented as follows: a device for preventing building ventilation ducts from being blocked, comprising a ventilation pipe, connecting flanges are provided at both ends of the ventilation pipe, a filter box is provided on one side of the connecting flange, a filter plate 1 is provided on one side inside the filter box, a movable filter plate is provided inside the filter plate 1, a connecting frame is provided around the outside of the movable filter plate, a spring top rod is provided on one side of the connecting frame, one end of the spring top rod is connected to a support rod 1, a support rod 2 is provided on one side of the center of the support rod 1, and an electric telescopic rod is connected to the center of the support rod 2.

[0007] Preferably, the two ends of the filter box are provided with the same connecting flanges as those on the ventilation pipe, and the filter box and the ventilation pipe are connected to each other through the connecting flanges.

[0008] Preferably, a filter plate 2 is provided inside the filter box at a side opposite to the filter plate 1, and positioning blocks are provided around the outside of the filter plate 1 and the filter plate 2, and the positioning blocks are embedded in the filter box.

[0009] Preferably, the connecting frame is fixedly connected to the movable filter plate, two support rods are provided, both ends of the support rods are fixedly connected to the inner wall of the filter box, four spring top rods are provided and are respectively arranged on the four corners of the connecting frame, and the connecting frame is slidably connected inside the filter plate.

[0010] Preferably, one end of the electric telescopic rod is connected to a pressure sensor, one side of the pressure sensor is fixedly connected to a baffle, one side of the baffle is provided with a plurality of pressure springs, one end of the pressure spring is connected to a partition, and the partition is provided at the center of the movable filter plate.

[0011] Preferably, a single chip microcomputer is provided outside the filter box, an alarm is provided on a side adjacent to the single chip microcomputer, the output end of the pressure sensor is electrically connected to the input end of the single chip microcomputer through a wire, and the output end of the single chip microcomputer is electrically connected to the electric telescopic rod and the input end of the alarm through a wire.

[0012] The beneficial effects of the utility model are embodied in:

[0013] The utility model is provided with filter plate one and filter plate two, and a movable filter plate is arranged inside the filter plate one. When the filter plate one and the movable filter plate are blocked during long-term use, the blocked filter plate one and the movable filter plate will block the air flow in the ventilation pipe, thereby increasing the pressure at the connection between the filter plate one and the ventilation pipe. When the pressure in the pipe pushes the movable filter plate to move the compression spring top rod and the pressure spring, the pressure exerted on the movable filter plate will be detected by the pressure sensor and transmitted to the single-chip microcomputer. The single-chip microcomputer controls the operation of the electric telescopic rod and the alarm. The electric telescopic rod drives the movable filter plate to move backward to open the filter plate one, so that the air in the pipe can enter the filter box, be filtered by the filter plate two, and then be discharged. When the alarm is running, it can remind the staff to clean or replace the blocked filter plate one and the movable filter plate in time, thereby accurately cleaning the blocked filter plate and saving labor costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0016] Figure 2 This is a cross-sectional view of the filter box of the utility model;

[0017] Figure 3This is a structural schematic diagram of a filter plate of the utility model;

[0018] Figure 4 It is a schematic diagram of the structure of the support rod 1 and the support rod 2 of the utility model;

[0019] Figure 5 For the utility model Figure 2 A partial enlarged view of the area at center A;

[0020] Description of reference numerals:

[0021] 1. Ventilation duct; 2. Connecting flange; 3. Filter box; 4. Filter plate 1; 5. Movable filter plate; 6. Connecting frame; 7. Spring top rod; 8. Support rod 1; 9. Support rod 2; 10. Electric telescopic rod; 11. Filter plate 2; 12. Positioning block; 13. Pressure sensor; 14. Baffle; 15. Pressure spring; 16. Partition; 17. Single chip microcomputer; 18. Alarm. DETAILED DESCRIPTION

[0022] The utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. In the absence of conflict, the embodiments in this application and the features in the embodiments can be combined with each other. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] It should be noted that if the utility model embodiments involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0024] In addition, "multiple" means more than two. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that ordinary technicians in the field can implement it. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of protection required by the utility model.

[0025] Please refer to the instruction manual Figure 1-5The utility model provides a device for preventing building ventilation ducts from being blocked, including a ventilation pipe 1, connecting flanges 2 are provided at both ends of the ventilation pipe 1, a filter box 3 is provided on one side of the connecting flange 2, a filter plate 4 is provided on one side inside the filter box 3, a movable filter plate 5 is provided inside the filter plate 4, a connecting frame 6 is provided around the outer periphery of the movable filter plate 5, a spring top rod 7 is provided on one side of the connecting frame 6, one end of the spring top rod 7 is connected to a support rod 8, a support rod 2 9 is provided on one side of the center of the support rod 8, and an electric telescopic rod 10 is connected to the center of the support rod 2 9.

[0026] In one embodiment, please refer to the attached manual. Figure 1 and Figure 2 , the filter box 3 has connecting flanges 2 at both ends that are the same as those on the ventilation pipe 1, the filter box 3 and the ventilation pipe 1 are connected to each other through the connecting flanges 2, and the filter box 3 is provided with a filter plate 2 11 on the opposite side of the filter plate 1 4, and the filter plate 1 4 and the filter plate 2 11 are provided with positioning blocks 12 around their outer periphery, and the positioning blocks 12 are embedded in the filter box 3, and the positioning blocks 12 can be connected to the filter box 3 to facilitate the positioning and installation of the filter plate 1 4 and the filter plate 2 11.

[0027] In another embodiment, please continue to refer to the attached manual. Figure 2 and Figure 3 , Figure 5 , the connecting frame 6 is fixedly connected to the movable filter plate 5, the support rod 8 is provided with two, the two ends of the support rod 8 are fixedly connected to the inner wall of the filter box 3, the spring top rod 7 is provided with four and is respectively arranged at the four corners of the connecting frame 6, the connecting frame 6 is slidably connected inside the filter plate 4, one end of the electric telescopic rod 10 is connected to the pressure sensor 13, one side of the pressure sensor 13 is fixedly connected to the baffle 14, one side of the baffle 14 is provided with a plurality of pressure springs 15, one end of the pressure spring 15 is connected to the partition 16, and the partition 16 is arranged at the center of the movable filter plate 5, the support rod 8 and the support rod 29 can respectively support the spring top rod 7 and the electric telescopic rod 10, and the electric telescopic rod 10 can drive the movable filter plate 5 to move backward when the filter plate 4 and the movable filter plate 5 are blocked, thereby opening the center of the filter plate 4 and maintaining the air flow inside the ventilation pipe 1.

[0028] In one embodiment, please refer to the attached manual. Figure 1A single chip microcomputer 17 is provided outside the filter box 3, and an alarm 18 is provided on one side adjacent to the single chip microcomputer 17. The output end of the pressure sensor 13 is electrically connected to the input end of the single chip microcomputer 17 through a wire, and the output end of the single chip microcomputer 17 is electrically connected to the electric telescopic rod 10 and the input end of the alarm 18 through a wire. The single chip microcomputer 17 can control the operation of the electric telescopic rod 10 and the alarm 18, so as to automatically move the movable filter plate 5 out of the filter plate 4 and alarm.

[0029] During use, when the filter plate 14 and the movable filter plate 5 are clogged after long-term use, the clogged filter plate 14 and the movable filter plate 5 will block the air flow in the ventilation pipe 1, and increase the pressure at the connection between the filter plate 14 and the ventilation pipe 1. When the pressure in the pipeline pushes the movable filter plate 5 to move the compression spring top rod 7 and the pressure spring 15, the pressure exerted on the movable filter plate 5 will be detected by the pressure sensor 13 and transmitted to the single-chip microcomputer 17. The single-chip microcomputer 17 controls the operation of the electric telescopic rod 10 and the alarm 18. The electric telescopic rod 10 drives the movable filter plate 5 to move backward to open the filter plate 14, so that the air in the pipeline can enter the filter box 3 and be filtered by the filter plate 2 11 and then be discharged. When the alarm 18 is running, it can remind the staff to clean or replace the clogged filter plate 14 and the movable filter plate 5.

[0030] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for preventing building ventilation ducts from blocking, characterized in that: The invention comprises a ventilation pipe (1), wherein connecting flanges (2) are provided at both ends of the ventilation pipe (1), a filter box (3) is provided on one side of the connecting flange (2), a filter plate (4) is provided on one side of the filter box (3), a movable filter plate (5) is provided on the inside of the filter plate (4), a connecting frame (6) is provided around the outside of the movable filter plate (5), a spring top rod (7) is provided on one side of the connecting frame (6), one end of the spring top rod (7) is connected to a support rod (8), a support rod (9) is provided on one side of the center of the support rod (8), and an electric telescopic rod (10) is connected to the center of the support rod (9); The filter box (3) is provided with connecting flanges (2) identical to those on the ventilation pipe (1) at both ends, and the filter box (3) and the ventilation pipe (1) are connected to each other via the connecting flanges (2); the connecting frame (6) is slidably connected inside the filter plate (4); one end of the electric telescopic rod (10) is connected to a pressure sensor (13); one side of the pressure sensor (13) is fixedly connected to a baffle (14); one side of the baffle (14) is provided with a plurality of pressure springs (15); one end of the pressure spring (15) is connected to a partition (16); the partition (16) is arranged at the center of the movable filter plate (5); a single-chip microcomputer (17) is provided outside the filter box (3); an alarm (18) is provided on one side adjacent to the single-chip microcomputer (17); an output end of the pressure sensor (13) is electrically connected to an input end of the single-chip microcomputer (17) via a wire; and the output end of the single-chip microcomputer (17) is electrically connected to the electric telescopic rod (10) and the input end of the alarm (18) via a wire.

2. A building ventilation duct anti-blocking device according to claim 1, characterized in that: A second filter plate (11) is provided inside the filter box (3) on a side opposite to the first filter plate (4), and positioning blocks (12) are provided around the outside of the first filter plate (4) and the second filter plate (11), and the positioning blocks (12) are embedded in the inside of the filter box (3).

3. A building ventilation duct anti-blocking device according to claim 2, characterized in that: The connecting frame (6) is fixedly connected to the movable filter plate (5), two support rods (8) are provided, both ends of the support rods (8) are fixedly connected to the inner wall of the filter box (3), and four spring top rods (7) are provided and are respectively arranged at the four corners of the connecting frame (6).

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