CN210207955U

CN210207955U - Wind pressure is measured with preventing stifled device that sweeps

Info

Publication number: CN210207955U
Application number: CN201920957232.4U
Authority: CN
Inventors: Guoqiang Li; 李国强; Zhen Xu; 徐振
Original assignee: Qingdao Lan Rui Electronic Technology Co Ltd
Current assignee: Qingdao Lan Rui Electronic Technology Co Ltd
Priority date: 2019-06-25
Filing date: 2019-06-25
Publication date: 2020-03-31
Anticipated expiration: 2029-06-25

Abstract

The utility model discloses a wind pressure is measured with preventing stifled device that sweeps, which comprises a housin, run through fixedly connected with ventilation pipe on the lateral wall of casing, the one end that the ventilation pipe is located the casing is equipped with the air intake, the one end that the ventilation pipe is located the casing outside is equipped with the flowmeter in proper order and sweeps the ware, and terminal and air outlet fixed connection, the ventilation pipe is through two bracing pieces and casing fixed connection, two the horizontal part of bracing piece all with casing fixed connection, vertical portion be located the upper and lower both ends of ventilation pipe respectively and with ventilation pipe fixed connection, and be located the flowmeter and sweep between the ware, fixedly connected with dead lever in the ventilation pipe, be equipped with in the ventilation pipe with dead lever complex clean. The utility model discloses can carry out the automatic operation of cleaning to the ventilation pipe, save the time of overhauing at every turn, only need change the air intake the ventilation groove can, clean the effect better, examine the cycle length greatly, manufacturing cost also consequently reduces.

Description

Wind pressure is measured with preventing stifled device that sweeps

Technical Field

The utility model relates to a wind pressure measuring device technical field especially relates to a wind pressure is measured with preventing stifled device that sweeps.

Background

In a positive pressure air supply system of a high-rise building, the residual pressure of a system front chamber or a staircase needs to be kept within the range of 25-30Pa so as to ensure that a safety door can be normally opened when a fire disaster happens. Generally, the probability of fire of a building is very low, so a wind pressure sampling port of an air supply system is easy to accumulate dust, the sampling result is influenced, the manual cleaning difficulty is high, and the operation is inconvenient. Therefore, an anti-blocking blowing device for wind pressure measurement is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a wind pressure measurement is with preventing stifled device that sweeps.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a wind pressure is measured with preventing stifled device that sweeps, includes the casing, run through fixedly connected with ventilation pipe on the lateral wall of casing, the one end that the ventilation pipe is located the casing is equipped with the air intake, the one end that the ventilation pipe is located the casing outside is equipped with the flowmeter in proper order and sweeps the ware, and terminal and air outlet fixed connection, the ventilation pipe is through two bracing pieces and casing fixed connection, two the horizontal part of bracing piece all with casing fixed connection, vertical portion be located the upper and lower both ends of ventilation pipe respectively and with ventilation pipe fixed connection, and be located the flowmeter and sweep between the ware, fixedly connected with dead lever in the ventilation pipe, be equipped with in the ventilation pipe with dead.

Preferably, clean the dwang that the mechanism is connected to be the level and places on the dead lever including rotating, dwang one end is rotated with the dead lever and is connected, the other end and mount fixed connection, the mount is even trilateral distribution, and the mount keeps away from the equal fixedly connected with in three end of dwang and scrapes the pole, it offsets with the inner wall of ventilation pipe to scrape the one end that the mount was kept away from to the pole, the fixed cover has connect the worm wheel on the dwang, be equipped with drive worm wheel pivoted drive structure on the ventilation pipe.

Preferably, the driving structure comprises a fixed seat fixedly connected to the outer wall of the ventilation pipe, a motor is fixedly connected to the fixed seat, a worm is fixedly connected to the tail end of an output shaft of the motor, one end, far away from the motor, of the worm penetrates through the side wall of the ventilation pipe and extends inwards, the tail end of the worm is rotatably connected to the inner wall of the ventilation pipe, and the worm wheel are meshed with each other.

Preferably, a replaceable ventilation groove is formed in the air inlet.

Preferably, the flow meter is a rotameter.

The utility model has the advantages that:

clean mechanism and drive structure through the setting, when measuring the wind pressure, the starter motor, the drive worm rotates, and then make the worm wheel rotate, drive the dwang and rotate, drive the inner wall of scraping the pole and cleaning the operation to the ventilation pipe through the mount, avoid the dust to pile up on the inner wall of ventilation pipe, cause the jam, because set up the ventilation groove at the air intake, avoided large granule impurity to get into in the ventilation pipe, in the casing maintenance cycle, can change the ventilation groove, avoid the air intake to block up, influence the measurement.

Through setting up flowmeter and purger, when measuring pressure, the air current enters into in the blast pipe from the air intake, measures through the flowmeter again, discharges from the air outlet through the purger at last, forms stable air current, guarantees to carry out the accuracy measurement to the pressure in the casing.

Drawings

Fig. 1 is a schematic structural view of an anti-blocking purging device for measuring wind pressure according to the present invention;

fig. 2 is a schematic view of a connecting structure between a scraping rod and a ventilation pipe of the anti-blocking blowing device for measuring wind pressure according to the present invention;

fig. 3 is the utility model provides a wind pressure is measured with preventing stifled worm wheel and worm connection structure sketch map that sweeps device.

In the figure: the device comprises a shell 1, a vent pipe 2, an air inlet 3, a flow meter 4, a purging device 5, an air outlet 6, a support rod 7, a fixing rod 8, a rotating rod 9, a fixing frame 10, a scraping rod 11, a motor 12, a worm 13, a worm wheel 14 and a fixing seat 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

Referring to fig. 1-3, an anti-blocking purging device for measuring wind pressure comprises a housing 1, a ventilation pipe 2 fixedly connected to the side wall of the housing 1 in a penetrating manner, an air inlet 3 formed at one end of the ventilation pipe 2 located in the housing 1, a replaceable ventilation slot formed in the air inlet 3 for preventing large particle impurities from entering the ventilation pipe 2 to cause blockage, a rotor flow meter 4 and a purging device 5 sequentially arranged at one end of the ventilation pipe 2 located outside the housing 1, the tail end of the ventilation pipe 2 is fixedly connected with the air outlet 6, the ventilation pipe 2 is fixedly connected with the shell 1 through two support rods 7, the horizontal parts of the two support rods 7 are fixedly connected with the shell 1, the vertical parts are respectively positioned at the upper end and the lower end of the ventilation pipe 2 and are fixedly connected with the ventilation pipe 2, and is located between flowmeter 4 and the purger 5, fixedly connected with dead lever 8 in the ventilation pipe 2, is equipped with in the ventilation pipe 2 and cleans the mechanism with dead lever 8 complex.

In the utility model, the cleaning mechanism comprises a rotating rod 9 which is rotatably connected on a fixed rod 8 and is horizontally arranged, one end of the rotating rod 9 is rotatably connected with the fixed rod 8, the other end is fixedly connected with a fixed frame 10, the fixed frame 10 is evenly distributed in three sides, and the three ends of the fixed frame 10 far away from the rotating rod 9 are all fixedly connected with a scraping rod 11, one end of the scraping rod 11 far away from the fixed frame 10 is abutted against the inner wall of the ventilation pipe 2, a worm wheel 14 is fixedly sleeved on the rotating rod 9, a driving structure for driving the worm wheel 14 to rotate is arranged on the ventilation pipe 2, the driving structure comprises a fixed seat 15 fixedly connected on the outer wall of the ventilation pipe 2, a motor 12 is fixedly connected on the fixed seat 15, a worm 13 is fixedly connected at the tail end of an output shaft of the motor 12, one, the worm 13 is intermeshed with a worm wheel 14.

The utility model discloses during the use, when measuring pressure, the air current enters into to ventilation pipe 2 in from air intake 3, measure through flowmeter 4 again, blow down ware 5 at last and discharge from air outlet 6, form stable air current, guarantee to carry out accurate measurement to the pressure in casing 1, when measuring the wind pressure, starter motor 12, drive worm 13 and rotate, and then make worm wheel 14 rotate, drive dwang 9 and rotate, it cleans the operation to scrape the inner wall of pole 11 to ventilation pipe 2 to drive through mount 10, avoid the dust to pile up on ventilation pipe 2's inner wall, cause the jam, because air intake 3 has set up the ventilation groove, large granule impurity has been avoided getting into ventilation pipe 2 in, in 1 maintenance cycle of casing, can change the ventilation groove, avoid air intake 3 to block up, influence the measurement.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. The utility model provides a wind pressure is measured with preventing stifled device that sweeps, includes casing (1), its characterized in that, run through fixedly connected with ventilation pipe (2) on the lateral wall of casing (1), the one end that ventilation pipe (2) are located casing (1) is equipped with air intake (3), the one end that ventilation pipe (2) are located casing (1) is equipped with flowmeter (4) and sweeps ware (5) in proper order, and terminal and air outlet (6) fixed connection, ventilation pipe (2) are through two bracing pieces (7) and casing (1) fixed connection, two the horizontal part of bracing piece (7) all with casing (1) fixed connection, vertical portion is located the upper and lower both ends of ventilation pipe (2) respectively and with ventilation pipe (2) fixed connection, and be located flowmeter (4) and sweep between ware (5), fixedly connected with dead lever (8) in ventilation pipe (2), and a cleaning mechanism matched with the fixed rod (8) is arranged in the ventilation pipe (2).

2. The wind pressure is measured with preventing stifled device that sweeps according to claim 1, characterized in that, clean the mechanism and include that the rotation is connected and be the dwang (9) of horizontal placement on dead lever (8) in the rotation, dwang (9) one end is rotated with dead lever (8) and is connected, the other end and mount (10) fixed connection, mount (10) are even trilateral distribution, and the mount (10) keep away from the equal fixedly connected with in three end of dwang (9) and scrape pole (11), scrape the one end that pole (11) kept away from mount (10) and offset with the inner wall of ventilation pipe (2), the fixed worm wheel (14) that has cup jointed on dwang (9), be equipped with drive worm wheel (14) pivoted drive structure on ventilation pipe (2).

3. The wind pressure is measured with preventing stifled device that sweeps according to claim 2, characterized in that, the drive structure includes fixing base (15) of fixed connection on ventilation pipe (2) outer wall, fixedly connected with motor (12) on fixing base (15), terminal fixedly connected with worm (13) of output shaft of motor (12), the one end that motor (12) were kept away from in worm (13) runs through the lateral wall of ventilation pipe (2) and inwards extends, and the terminal rotation is connected on the inner wall of ventilation pipe (2), worm (13) and worm wheel (14) intermeshing.

4. The anti-blocking purging device for wind pressure measurement according to claim 3, wherein a replaceable ventilation groove is arranged in the wind inlet (3).

5. The anti-blocking purging device for wind pressure measurement according to claim 4, wherein the flow meter (4) is a rotor flow meter.