CN218940489U

CN218940489U - Viewing cylinder of inflatable cabinet

Info

Publication number: CN218940489U
Application number: CN202320050995.7U
Authority: CN
Inventors: 朱秀磊
Original assignee: Zhejiang Qipeng Electric Co ltd
Current assignee: Zhejiang Qipeng Electric Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-04-28
Anticipated expiration: 2033-01-09

Abstract

The utility model discloses an observation tube of an inflatable cabinet, which is technically characterized by comprising a cabinet body, wherein an installation tube is arranged on the cabinet body, an observation channel is arranged in the installation tube, lenses are arranged at two ends of the installation tube, the special installation tube comprises an inner tube and an outer tube, a heating cavity is formed between the inner tube and the outer tube, and a heating wire is arranged in the heating cavity; the air inlet hole is arranged on the outer cylinder and used for communicating the heating cavity with the outside, and the air outlet hole is used for communicating the observation channel with the outside, and an air inlet fan is arranged at the air inlet hole; the two ends of the inner cylinder are provided with air outlet holes for blowing air to lenses at the two ends, and the air outlet holes are communicated with the heating cavity and the observation channel; the control assembly is used for controlling the heating wire and the air inlet fan; through the structure, the heating, dehumidifying and demisting of the observation barrel lens can be realized, so that the phenomenon that condensation or fog appears on the lens to influence the definition of the sight line of a worker during observation is avoided.

Description

Viewing cylinder of inflatable cabinet

Technical Field

The utility model relates to the technical field of all-insulation inflatable cabinets, in particular to an observation mirror of an inflatable cabinet.

Background

The inflatable full-insulation full-sealed ring main unit and the solid cabinet insulating ring main unit are widely applied to the power grid distribution field at present, and because the switches are all arranged in a sealed stainless steel air charging cabinet or an epoxy resin air charging cabinet, the air charging cabinet is opaque, the switch state cannot be directly observed, and under some special electricity utilization conditions, in order to ensure electricity utilization safety, a user hopes to directly observe the position state of the main loop switch; therefore, the prior inflatable cabinet is provided with the observation window on the panel of the cabinet body, thereby being convenient for staff to observe the state of the main loop switch;

as disclosed in patent publication No. (CN 217543549U), an observation window for a gas-filled tank with a light source is arranged coaxially with a convex lens and a concave lens through an observation mirror, so that an enlarged view angle of optical imaging can be presented on the observation mirror, thereby realizing comprehensive and clear observation of the internal environment of the tank.

However, in an actual use state, if the temperature difference between the inside and the outside of the cabinet body is large, water vapor in the air is easily condensed into water drops on the mirror surface to influence the observation sight of staff; especially in winter, because the equipment in the cabinet body generates heat during working, the temperature of the air in the cabinet body is higher, and the temperature of the observation mirror and the convex lens of the observation window are lower due to contact with the external low-temperature air, so that when the hot air in the cabinet body is in contact with the mirror surface, water vapor in the air can be condensed into water drops on the inner side of the mirror surface of the observation window, and therefore staff cannot wipe the water drops on the inner side of the observation window, and the sight of the staff is influenced; and when external temperature is lower, the gas of staff when observing the sight glass can lead to the fog on the sight glass, influences the sight.

There is a need for a viewing window assembly that avoids condensation and haze from the mirror.

Disclosure of Invention

In order to solve the problems, the utility model provides the observation cylinder of the inflatable cabinet, which can dehumidify and heat lenses of an observation mirror, so that condensation and fog generated by the lenses are prevented from affecting the observation line of sight.

In order to achieve the above purpose, the utility model adopts the technical scheme that: the observation tube of the inflatable cabinet comprises a cabinet body, wherein an installation tube is arranged on the cabinet body, an observation channel is arranged in the installation tube, and lenses are arranged at two ends of the installation tube; the air inlet hole is arranged on the outer cylinder and used for communicating the heating cavity with the outside, and the air outlet hole is used for communicating the observation channel with the outside, and an air inlet fan is arranged at the air inlet hole; the two ends of the inner cylinder are provided with air outlet holes for blowing air to lenses at the two ends, and the air outlet holes are communicated with the heating cavity and the observation channel; the heating wire also comprises a control component for controlling the heating wire and the air inlet fan.

The utility model is further provided with a first one-way valve which enables air to flow to the heating cavity in one way at the inner side of the air inlet.

The utility model is further arranged that a second one-way valve which enables air to flow from the observation channel to the outside in one way is arranged outside the exhaust hole.

The utility model is further arranged that the heating cavity comprises an air cavity positioned at two ends of the lens and an air cavity positioned at the air inlet, and the heating wire is arranged in the air cavity; an air pipe is arranged between the air cavity and the air cavity.

The utility model is further provided with a dust removing sheet outside the air inlet.

The utility model is further arranged that the control assembly comprises an equipment box arranged on the outer cylinder, an infrared sensor and a PLC control board connected with a power supply are arranged in the equipment box, and the infrared sensor is electrically connected with the heating wire and the air inlet fan through the PLC control board.

In summary, the utility model has the following beneficial effects:

compared with the prior art, the infrared sensor can automatically start the heating wire and the air inlet fan when a worker approaches the air charging cabinet, so that external gas is blown to the lenses at two ends of the mounting cylinder after being heated, the lenses can be heated and dehumidified, and the phenomenon that the inner hot air is contacted with the low-temperature lenses due to the fact that the temperature difference between the inside and the outside of the cabinet body is large, and moisture in the air condenses into water drops on the lenses to influence the sight of the worker is avoided; meanwhile, when the worker observes, the expired gas is condensed on the lens to form fog, so that the sight line of the worker can be kept clear all the time when the worker uses the observation tube, and the observation is convenient.

Drawings

Fig. 1 is a perspective view of the present embodiment.

Fig. 2 is a side sectional view of the present embodiment.

Fig. 3 is a sectional structural view of the mounting cylinder.

Fig. 4 is an enlarged view of the intake hole.

Fig. 5 is an enlarged view of the vent hole.

Reference numerals: 1-a cabinet body; 2-a mounting cylinder; 21-an inner cylinder; 22-an outer cylinder; 23-heating chamber; 231-wind chamber; 232-air chambers; 233-trachea; 24-heating wires; 25-an air inlet hole; 26-exhaust holes; 27-an inlet fan; 28-an air outlet hole; 3-observing the channel; 4-a lens; 5-a control assembly; 51-equipment box; 52-an infrared sensor; 53-PLC control panel; 6-a first one-way valve; 7-a second one-way valve; 8-a dust removing sheet.

Detailed Description

The present utility model will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1-5, the embodiment discloses an observation barrel of an inflatable cabinet, which can enable workers to observe the main loop switch state in a cabinet body 1 when the inflatable cabinet is in a working state; however, in the working process of the existing inflatable cabinet, a large amount of heat is generated in the inflatable cabinet to cause higher air temperature in the cabinet body, and at the moment, if the ambient temperature is lower, particularly in winter, the lenses arranged on the observation cylinder are at a low temperature due to the lower ambient temperature; at this time, after the hot air in the lens contacts with the lens, the hot air is cooled, and then moisture can be condensed into condensation on the lens 4, so that the definition of the staff in observation can be affected; and because the surface temperature of the lenses positioned on the outer side of the cabinet body 1 is lower, when a worker approaches to the observation cylinder, the exhaled hot air can form fog on the surfaces of the lenses, so that the sight line observed by the worker is blocked, and the use is affected.

As shown in fig. 3, the cabinet body 1 in the application is provided with a mounting cylinder 2, an observation channel 3 is arranged between the mounting cylinders 2, two ends of the observation channel 3 are respectively provided with lenses 4 positioned in the cabinet body 1 and outside the cabinet body 1, and the components in the cabinet body 1 can be observed through the observation channel 3 and the lenses 4, wherein the lenses 4 can be convex lenses, so that the components in the cabinet body can be amplified, and the observation of staff is more convenient.

As shown in fig. 3-4, the installation cylinder 2 comprises an inner cylinder 21 and an outer cylinder 22, the outer cylinder 22 is fixedly connected with the cabinet body 1 through threads, and the outer cylinder 22 and the cabinet body 1 are sealed through a sealing gasket; a heating cavity 23 is formed between the outer cylinder 22 and the inner cylinder 21, the heating cavity 23 comprises air cavities 231 arranged at two ends of the mounting cylinder 2, a plurality of air outlet holes 28 communicated with the observation channel 3 are arranged on the air cavities 231, and the air outlet holes 28 blow towards the direction of the lens 4; the air cavity 232 is connected with the air inlet 25, the heating wire 24 is arranged in the air cavity 232, the air inlet 25 is provided with the air inlet fan 27, when a worker needs to use the observation cylinder 2 to observe the equipment condition in the cabinet 1, the air inlet fan 27 is started to suck outside air into the air cavity 232 and heat the air through the heating wire 24, and the air cavity 232 is communicated with the air cavities 231 at two ends through the air pipes 233, so that the heated air can enter the air cavities 231 and be blown onto the lenses 4 through the air outlet 28 on the air cavities 231, and the lenses 4 are dehumidified and heated; the four air outlets 28 are arranged, so that the lens 4 can be uniformly heated integrally, and meanwhile, the breakage caused by direct contact of the low-temperature lens with high temperature is avoided; meanwhile, the heated lens 4 can also achieve the demisting effect, so that the phenomenon that mist is generated on the surface of the lens by gas exhaled by workers to influence the sight is avoided.

The vent 26 can discharge the air in the observation channel 3, so that the problem that the joint between the lens and the observation barrel leaks and breaks due to the fact that the air pressure in the observation channel 3 is increased due to high temperature is avoided, and the use of equipment is affected.

The top of the observation cylinder 2 is provided with an equipment box 51 with a power supply, an infrared sensor 52 facing the front of the cabinet body 1 and a PLC control board 53 connected with the infrared sensor 52 are arranged in the equipment box 51, the PLC control board 53 is connected with the power supply through wires, the PLC control board 53 is connected with a heating wire 24 and an air inlet fan 27 through wires, the wires penetrate through the inner wall of the air cavity 232, are pulled to the equipment box 51 through the outside, and penetrate through the equipment box 51 to be connected with the internal PLC control board;

through the arrangement of the PLC control board, when a worker approaches the infrared sensor 52 by three meters and the sensing time exceeds 2 seconds, the infrared sensor sends a signal to the PLC control board, so that the air inlet fan 27 and the heating wire 24 are started in advance, the lenses can be dehumidified and heated in advance, the time for the worker to wait for the lenses to be dehumidified and heated is reduced, and the efficiency is improved; after the staff leaves, the PLC control panel controls the heating wire and the air inlet fan to stop, so that the waste of electric quantity is reduced.

As shown in fig. 4-5, the air inlet 25 is provided with a first one-way valve 6 located on the air cavity 232, when the air inlet fan works to guide the outside air inwards, the first one-way valve is opened to realize inward air inlet, and when the air inlet fan stops working, the first one-way valve 6 is closed, so that the air cavity 232 is controlled to be closed, and the outside air dust is prevented from entering the observation cylinder; when the air pressure in the observation channel is increased, the second one-way valve 7 positioned at the exhaust hole 26 is opened to realize pressure relief in the observation channel, and in a daily state, the exhaust hole 26 is in a sealed state, so that external dust can be prevented from entering.

As shown in fig. 4, the dust removing sheet 8 is disposed below the air inlet 25, and the dust removing sheet 8 can remove dust from the air entering the observation tube, so that dust in the air is reduced from adhering to the inner side of the lens to affect the line of sight.

The above embodiments are only preferred embodiments of the present utility model, and are not intended to limit the present utility model, and any modifications, equivalent substitutions, improvements, etc. within the design concept of the present utility model should be included in the scope of the present utility model.

Claims

1. The observation tube of the inflatable cabinet comprises a cabinet body (1), wherein an installation tube (2) is arranged on the cabinet body (1), an observation channel (3) is arranged in the installation tube (2), and lenses (4) are arranged at two ends of the installation tube, and the observation tube is characterized in that the installation tube (2) comprises an inner tube (21) and an outer tube (22), a heating cavity (23) is formed between the inner tube (21) and the outer tube (22), and heating wires (24) are arranged in the heating cavity (23); the air inlet device further comprises an air inlet hole (25) and an exhaust hole (26), wherein the air inlet hole (25) is arranged on the outer cylinder (22) and used for communicating the heating cavity (23) with the outside, the exhaust hole (26) is used for communicating the observation channel (3) with the outside, and an air inlet fan (27) is arranged at the air inlet hole (25); air outlet holes (28) for blowing air to lenses (4) at two ends are formed in two ends of the inner cylinder (21), and the air outlet holes (28) are communicated with the heating cavity (23) and the observation channel (3); the device also comprises a control component (5) for controlling the heating wire (24) and the air inlet fan (27).

2. Viewing cylinder of an inflatable cabinet according to claim 1, characterized in that the inside of the air inlet opening (25) is provided with a first one-way valve (6) for the unidirectional flow of air towards the heating chamber (23).

3. A viewing cylinder for an inflatable cabinet according to claim 2, wherein the outside of the vent hole (26) is provided with a second one-way valve (7) for allowing one-way flow of air from the viewing channel (3) to the outside.

4. The observation cylinder of an inflatable cabinet according to claim 1, wherein the heating cavity (23) comprises an air cavity (231) positioned at two ends of the lens (4) and an air cavity (232) positioned at the air inlet hole (25), and the heating wire (24) is arranged in the air cavity (232); an air pipe (233) is arranged between the air cavity (231) and the air cavity (232).

5. The observation tube of an inflatable cabinet according to claim 4, wherein the air inlet (25) is externally provided with dust removing pieces (8).

6. The observation cylinder of an inflatable cabinet according to claim 1, wherein the control assembly (5) comprises an equipment box (51) arranged on the outer cylinder (22), an infrared sensor (52) and a PLC control board (53) connected with a power supply are arranged in the equipment box (51), and the infrared sensor (52) is electrically connected with the heating wire (24) and the air inlet fan (27) through the PLC control board (53).