Ventilation device with pressure detection function

Abstract

The utility model provides a ventilation device with a pressure detection function, which comprises a shell and an air guide mechanism, the shell is a square frame body, the shell is used for being communicated with an external ventilation pipeline, the air guide mechanism is arranged in the frame body, and a pressure detection device is arranged beside the air outlet end of the air guide mechanism; the pressure detection device comprises a wind speed induction tube and a pressure detector, the two ends of the wind speed induction tube penetrate through the shell, and the wind speed induction tube is in communication connection with the pressure detector. According to the ventilation device with the pressure detection function, air speed and pressure information can be received through the air speed induction pipe and transmitted to the pressure detector to be recognized, a worker can conveniently judge and control air pressure, the rubber hose is fixed by installing the fixing plate on the shell, the rubber hose is prevented from being blown off from the pressure detector when the air pressure is too large, and the safety of the worker is guaranteed. Therefore, the pressure value cannot be detected normally.

Description

Technical Field

[0001] The utility model relates to a ventilation device, in particular to a ventilation device with pressure detection. Background Art

[0002] Ventilation devices are widely used in places such as buildings, factories, and stations. The function of a ventilation device is to enable the convection of indoor and outdoor air through ventilation holes provided in the device. When the indoor air circulation is poor, harmful gases are likely to accumulate. Therefore, the ventilation device can achieve the effect of ventilation and air change to keep the indoor air fresh and the temperature appropriate.

[0003] The ventilation devices on the market are generally of a hollow box structure. A wind guide grille is provided inside the box, and air forms convection with the outside through the ventilation holes formed by the wind guide grille from the indoor.

[0004] When the indoor is affected by weather or harmful gases leak, the indoor air pressure will increase accordingly. When the air pressure is too high, it is easy to cause discomfort to indoor personnel and even explosion, thus bringing potential safety hazards to life and property. Content of the Utility Model

[0005] The utility model aims to provide a ventilation device with pressure detection to solve the problem in the prior art that when the indoor air pressure changes, the ventilation device cannot detect the air pressure, thus bringing potential safety hazards.

[0006] To achieve the above object, the utility model adopts the following technical solutions: The utility model provides a ventilation device with pressure detection, including a housing and a wind guide mechanism. The housing is a square frame body, and the housing is used to communicate with an external ventilation duct. A wind guide mechanism is provided inside the frame body. The wind guide mechanism is of a grille structure, and a pressure detection device is provided beside the air outlet end of the wind guide mechanism; the pressure detection device includes: a wind speed induction tube and a pressure detector. The wind speed induction tube extends into the housing, and the air inlet end of the wind speed induction tube is communicated with the inside of the housing. The wind speed induction tubes are all communicated with the input end of the pressure detector.

[0007] Preferably, there are two wind speed induction tubes, and the two wind speed induction tubes present a cross-shaped structure inside the housing.

[0008] Preferably, one end of the wind speed induction tube is connected to one end of a rubber hose, and the other end of the rubber hose is provided with a connector.

[0009] Preferably, a sensor base is provided on the outer surface of the housing, the pressure detector is installed on the sensor base, and the connector can be connected to the pressure detector.

[0010] Preferably, the connector is made of a magnetic material, and the connector can be magnetically connected to the pressure detector, which is convenient for plugging and unplugging the connector.

[0011] Preferably, a fixing mechanism is provided at one end of the wind speed induction tube passing through the outer shell. The fixing mechanism includes: a fixing plate and a fastening mechanism. The fixing plate is installed on the surface of the outer shell on the path from the connector to the pressure detector. Fastening mechanisms are provided at both ends of the surface of the fixing plate. The rubber hose is clamped on the fixing plate by the fastening mechanism to prevent the rubber hose from shaking randomly and causing the connector to fall off the pressure detector.

[0012] Preferably, the fastening mechanism includes a card and several buckles. One end of the card is connected to the fixing plate by a hinge, and the middle of the card is fixed to the fixing plate by a screw. Each buckle is a U-shaped structure. One end of each buckle is connected to the fixing plate, and the end of the buckle connected to the fixing plate is elastic. A perforation is formed between the buckle and the fixing plate for the rubber hose to pass through. The other end of each buckle is pressed against the fixing plate by the card.

[0013] Preferably, the air guiding mechanism includes: a first rib plate and a second rib plate. The first rib plates are equidistantly installed in the outer shell from top to bottom in sequence, and the second rib plates are equidistantly installed in the outer shell from left to right in sequence. The first rib plate and the second rib plate form an air guiding grille.

[0014] Preferably, a fixing frame is installed on the edge of the outer shell, and corner blocks are provided at the four corners of the fixing frame. The corner blocks are connected to the outer shell by screws.

[0015] Compared with the prior art, the utility model has the following beneficial effects: 1) The pressure detection type ventilation device of the present invention is provided with an air guiding mechanism in the outer shell. The air guiding mechanism is a grille structure and has the function of evenly distributing air pressure, so that the gas is evenly distributed after passing through the air guiding mechanism, avoiding affecting the detection result of the pressure detection device due to excessive air pressure at a certain place. A pressure detection device is arranged on one side of the air guiding grille. The pressure detection device is composed of a wind speed induction tube and a pressure detector. When the wind passes through the air guiding mechanism, it can evenly contact the wind speed induction tube through the air holes. The wind speed induction tube receives the wind speed and pressure information and transmits it to the pressure detector for identification, which is convenient for the staff to judge and control the wind pressure; 2) The wind speed induction tube is a Pitot tube, which senses the wind speed through the wind pressure. The wind speed induction tube is connected to the input end of the pressure detector through a rubber hose. A pressure detection processing control circuit and a pressure induction execution component are arranged in the pressure detector. The pressure induction execution component is communicated to the wind speed induction tube through the rubber hose. A connector is installed on the rubber hose. The connector is made of magnetic material and can be magnetically connected to the pressure detector, which is convenient for the staff to plug and unplug during replacement or maintenance; 3) By installing a fixing plate and a fastening mechanism on the outer shell, the fixing plate and the fastening mechanism cooperate with the buckle to position the rubber hose according to the specified path, avoiding the rubber hose being flattened due to random movement during transportation and other processes, avoiding the rubber hose being unable to conduct air, and ensuring that the rubber hose can normally transmit air pressure.

[0016] Other advantages, objectives, and features of the present utility model will be partially reflected by the following description and partially understood by those skilled in the art through the research and practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of a pressure detection type ventilation device.

[0018] Figure 2 It is a schematic diagram of a fixing mechanism.

[0019] Reference numerals in the drawings: housing 1, fixing frame 11, corner block 12, air guiding mechanism 2, first rib plate 21, second rib plate 22, pressure detection device 3, wind speed induction pipe 31, pressure detector 32, rubber hose 33, connector 34, fixing mechanism 4, fixing plate 41, fastening mechanism 42, buckle 421, card 422, hinge 423, screw 424. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0020] In order to make the technical means, creative features, achieved objectives, and functions of the present utility model clearer and easier to understand, the present utility model will be further described below in conjunction with the drawings and specific embodiments:

[0021] As Figure 1 and Figure 2 shown, the present utility model provides a pressure detection type ventilation device, which includes a housing 1 and an air guiding mechanism 2. The housing 1 is a square frame body and is used to communicate with the external ventilation duct. An air guiding mechanism 2 is arranged inside the frame body, and a pressure detection device 3 is arranged beside the air outlet end of the air guiding mechanism 2; the pressure detection device 3 includes: a wind speed induction pipe 31 and a pressure detector 32. The wind speed induction pipe 31 extends into the housing 1, and the air inlet end of the wind speed induction pipe 1 is communicated with the inside of the housing 2. The wind speed induction pipes 31 are all communicated with the input end of the pressure detector 32. When the wind passes through the ventilation duct, the air guiding grille can evenly blow the air onto the pressure induction pipe. The pressure induction pipe monitors the wind speed and converts it into an electrical signal and transmits it to the pressure detector 32.

[0022] There are two wind speed induction pipes 31, and the two wind speed induction pipes 31 present a cross-shaped structure inside the housing 1. It can realize the horizontal and vertical monitoring of the wind speed passing through the ventilation duct.

[0023] One end of the wind speed induction pipe 31 is connected to one end of a rubber hose 33, and the other end of the rubber hose 33 is provided with a connector 34. The rubber hose 33 can transmit air pressure to the pressure detector 32, and the connector 34 can be replaced and matched according to the interface size of the pressure detector 32.

[0024] A sensor base is arranged on the outer surface of the housing 1, and the pressure detector 32 is installed on the sensor base. The connector 34 can be connected to the pressure detector 32.

[0025] The connector 34 is made of magnetic material and can be magnetically connected to the pressure detector 32, which facilitates the insertion and removal of the connector 34.

[0026] One end of the wind speed induction tube 31 passing through the housing 1 is provided with a fixing mechanism 4. The fixing mechanism 4 includes: a fixing plate 41 and a fastening mechanism 42. The fixing plate 41 is installed on the surface of the housing 1 on the path from the connector 34 to the pressure detector 32. Fastening mechanisms 42 are provided at both ends of the surface of the fixing plate 41. The rubber hose 33 is clamped on the fixing plate 41 by the fastening mechanism 42. The fastening mechanism 42 is used to prevent the rubber hose 33 from shaking randomly and causing the connector 34 to fall off the pressure detector 32.

[0027] The fastening mechanism 42 includes a card 422 and a plurality of buckles 421. One end of the card 422 is connected to the fixing plate 41 through a hinge 423. The middle part of the card 422 is fixed to the fixing plate 41 by a screw 424. Each buckle 421 is in a U-shaped structure. One end of each buckle 421 is connected to the fixing plate 41, and the end of the buckle 421 connected to the fixing plate 41 is elastic. A perforation is formed between the buckle 421 and the fixing plate 41 for the rubber hose 33 to pass through. The other end of each buckle 421 is pressed against the fixing plate 41 by the card 422. When the rubber hose 33 needs to be connected to the pressure detector 32, the buckle 421 is opened, the rubber hose 33 passes through the perforations in each buckle 421 in turn, and then the end of the buckle 421 not connected to the fixing plate 41 is pressed down. The end of the buckle 421 not connected to the fixing plate 41 is the opening and closing part of the buckle 421. The card 422 is pressed down to press the opening and closing part of the buckle 421 against the fixing plate 41, and the card 422 is fixed to the fixing plate 41 by the screw 424, thereby positioning.

[0028] The air guiding mechanism 2 includes: a first rib plate 21 and a second rib plate 22. The first rib plate 21 is installed in the housing 1 at equal intervals from top to bottom in turn, and the second rib plate 22 is installed in the housing 1 at equal intervals from left to right in turn. The first rib plate 21 and the second rib plate 22 form an air guiding grid. When air passes through the air guiding grid, the wind speed is more uniform.

[0029] A fixing frame 11 is installed on the edge of the housing 1. Corner blocks 12 are provided at the four corners of the fixing frame 11. The corner blocks 12 are connected to the housing 1 by screws 424. The pressure detection type ventilation device is fixed to an external ventilation duct.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and not to limit them. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the purpose and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A pressure-detecting ventilation device, comprising a housing (1) and a wind guiding mechanism (2). The housing (1) is a square frame and is used to communicate with an external ventilation duct. It is characterized in that, A wind guiding mechanism (2) is provided inside the housing. The wind guiding mechanism (2) is a grille structure, and a pressure detection device (3) is provided beside the air outlet end of the wind guiding mechanism (2). The pressure detection device (3) includes: a wind speed induction tube (31) and a pressure detector (32). The wind speed induction tube (31) extends into the housing (1), and the air inlet end of the wind speed induction tube (31) communicates with the inside of the housing. The wind speed induction tubes (31) are all connected to the input end of the pressure detector (32).

2. The pressure-detecting ventilation device according to claim 1, characterized in that, There are two wind speed induction tubes (31), and the two wind speed induction tubes (31) present a cross-shaped structure inside the housing (1).

3. The pressure-detecting ventilation device according to claim 2, characterized in that, One end of the wind speed induction tube (31) is connected to one end of a rubber hose (33), and the other end of the rubber hose (33) is provided with a connector (34).

4. The pressure-detecting ventilation device according to claim 3, characterized in that, A sensor base is provided on the outer surface of the housing (1), and the pressure detector (32) is installed on the sensor base. The connector (34) can be connected to the pressure detector (32).

5. The pressure-detecting ventilation device according to claim 4, characterized in that, The connector (34) is made of magnetic material, and the connector (34) can be magnetically connected to the pressure detector (32), which facilitates the insertion and removal of the connector (34).

6. The pressure-detecting ventilation device according to claim 5, characterized in that, One end of the wind speed induction tube (31) passing through the housing (1) is provided with a fixing mechanism (4). The fixing mechanism (4) includes: a fixing plate (41) and a fastening mechanism (42). The fixing plate (41) is installed on the surface of the housing (1) on the path from the connector (34) to the pressure detector (32). Both ends of the surface of the fixing plate (41) are provided with the fastening mechanism (42). The rubber hose (33) is clamped on the fixing plate (41) by the fastening mechanism (42). The fastening mechanism (42) is used to prevent the rubber hose (33) from shaking randomly and causing the connector (34) to fall off the pressure detector (32).

7. The pressure-detecting ventilation device according to claim 6, characterized in that, The fastening mechanism (42) includes a card (422) and several buckles (421). One end of the card (422) is connected to the fixing plate (41) through a hinge (423). The middle of the card (422) is fixed to the fixing plate (41) by a screw (424). Each buckle (421) is a U-shaped structure. One end of each buckle (421) is connected to the fixing plate (41), and the end of the buckle (421) connected to the fixing plate (41) has elasticity. A perforation is formed between the buckle (421) and the fixing plate (41) for the rubber hose (33) to pass through. The other end of each buckle (421) is pressed against the fixing plate (41) by the card (422).

8. The pressure-detecting ventilation device according to any one of claims 1-4, characterized in that, The wind guiding mechanism (2) includes: a first rib plate (21) and a second rib plate (22). The first rib plate (21) is installed equidistantly from top to bottom inside the housing (1). The second rib plate (22) is installed equidistantly from left to right inside the housing (1). The first rib plate (21) and the second rib plate (22) form a wind guiding grille.

9. The pressure-detecting ventilation device according to claim 1, characterized in that, A fixing frame (11) is installed on the edge of the housing (1). Corner blocks (12) are respectively provided at the four corners of the fixing frame (11). The corner blocks (12) are connected to the housing (1) by screws (424).

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