CN219531099U - A portable fresh air system for power construction in narrow spaces - Google Patents

Abstract

The utility model relates to a portable fresh air system for electric power construction in a narrow space, which comprises an air inlet pipe, a blower arranged at one end of the air inlet pipe, an air guide pipe arranged on the blower, a compression cover plate arranged at one end of the air guide pipe far away from the blower, an air exhaust piece arranged at one end of the compression cover plate far away from the air guide pipe and capable of performing telescopic operation, and a cloth bag filter arranged in the air exhaust piece. According to the portable fresh air system for the narrow space electric power construction, disclosed by the utility model, the filtering requirement of the fresh air system is met while the telescopic operation of the air exhaust piece is realized, the influence on the efficiency of filtering and ventilation operation due to the fact that the distance between the air inlet and the air outlet is too short is avoided, the outer sleeve can be contracted by the surface of the inner sleeve, so that the volume of the whole fresh air system is reduced, the carrying of the fresh air system is facilitated, and the portable fresh air system is suitable for being used in a narrow space.

Description

A portable fresh air system for power construction in narrow spaces

technical field

The utility model belongs to the field of electric power construction ventilation, in particular to a portable fresh air system for electric power construction in a narrow space.

Background technique

The working environment of electric power construction is usually complex, and some of the working environments are located in narrow spaces such as tunnels and ditches. For electric power construction operations in narrow spaces, fresh air systems must be equipped to discharge a large amount of dust during construction operations, so as to provide good construction conditions for electric power construction personnel. environment, the existing fresh air system includes an air inlet pipe, a blower arranged at one end of the air inlet pipe, and an air guide pipe arranged on the blower. This kind of fresh air system keeps a sufficient distance between the air inlet and the air outlet in order to avoid the interference of the air flow. As a result, the overall volume of the fresh air system is relatively large, which makes it inconvenient to carry the fresh air system, and is not suitable for electric ventilation in narrow spaces.

Contents of the invention

The purpose of this utility model is to provide a portable fresh air system for electric power construction in narrow spaces, to provide a portable fresh air system for electric power construction in narrow spaces that is easy to carry.

The utility model realizes above-mentioned purpose through following technical scheme:

A portable fresh air system for electric power construction in a narrow space, including an air inlet pipe, a blower arranged at one end of the air inlet pipe, an air guide pipe arranged on the blower, and a compression cover arranged at the end of the air guide pipe away from the blower Plate, the air exhaust piece that is located at the end of the compression cover away from the air duct and can be telescopically operated, and the bag filter placed in the air exhaust piece;

Wherein, the pressing cover plate is detachably connected to the exhaust piece through a fastening knob, and a support plate is provided between the air inlet pipe and the exhaust piece, and two handles are arranged on the support plate .

As a further optimization solution of the present utility model, the handle is in a U-shaped structure, and rubber blocks are provided inside the middle of the handle.

As a further optimization scheme of the present utility model, the air exhaust member includes an inner sleeve arranged on the side of the pressing cover plate facing away from the air duct and having several through holes, and an outer sleeve sleeved on the outer surface of the inner sleeve. And a fastening screw arranged on the outer surface of the outer sleeve and matched with the through hole and threaded.

As a further optimization solution of the present utility model, a retaining ring for placing a bag filter is provided inside the inner casing.

As a further optimization solution of the present utility model, the blower includes a casing respectively connected to the air inlet pipe and the air guide pipe, a wind wheel arranged inside and connected to the output end of the motor, and several blades arranged on the outer surface of the wind wheel.

As a further optimization solution of the present invention, a block is provided on the inner side of the casing close to the air duct.

The beneficial effects of the utility model are:

(1) In this utility model, the telescopic operation of the exhaust part is realized by arranging a telescopic exhaust part on the compression cover plate of the air guide pipe, and setting the bag filter inside the inner casing of the exhaust part At the same time, it can meet the filtration requirements of the fresh air system, and avoid the short distance between the air inlet and the air outlet from affecting the efficiency of the filtration and ventilation operation. The outer sleeve can be shrunk on the surface of the inner sleeve, thereby reducing the volume of the overall fresh air system and facilitating the fresh air. The system is portable and suitable for use in narrow spaces.

Description of drawings

Fig. 1 is a schematic diagram of the internal structure of the utility model;

Fig. 2 is the installation sketch map of air exhaust part and bag filter of the present utility model;

Fig. 3 is a structural schematic diagram of the air blower of the present invention.

In the figure: 1. Air inlet pipe; 2. Blower fan; 3. Handle; 4. Support plate; 5. Exhaust parts; Bag filter; 10, rubber block; 21, casing; 22, blade; 23, wind wheel; 24, block; 51, inner sleeve; 52, outer sleeve; 53, through hole; 54, fastening screw ; 55, retaining ring.

Detailed ways

The application will be described in further detail below in conjunction with the accompanying drawings. It is necessary to point out that the following specific embodiments are only used to further illustrate the application, and cannot be interpreted as limiting the protection scope of the application. The above application content makes some non-essential improvements and adjustments to this application.

Example 1

As shown in Figure 1, a portable fresh air system for power construction in a narrow space includes an air inlet pipe 1, an air blower 2 arranged at one end of the air inlet pipe 1, an air guide pipe 6 arranged on the air blower 2, and a device The compression cover plate 7 at the end of the air duct 6 away from the blower 2, the air exhaust part 5 located at the end of the compression cover 7 far away from the air duct 6 and capable of telescopic operation, and the bag filter placed in the air exhaust part 5 device 9;

Wherein, the pressing cover plate 7 and the exhaust member 5 are detachably connected by a fastening knob 8, and a support plate 4 is also provided between the air inlet pipe 1 and the exhaust member 5, and two lifting plates are arranged on the support plate 4. Hand 3.

As shown in Figures 1 and 2, the handle 3 has a U-shaped structure, and the inner side of the middle part of the handle 3 is provided with a rubber block 10; An inner sleeve 51 with several through holes 53, an outer sleeve 52 sleeved on the outer surface of the inner sleeve 51, and a fastening screw 54 arranged on the outer surface of the outer sleeve 52 and matched with the through holes 53 and threaded; The inner side of the sleeve 51 is provided with a retaining ring 55 for placing the bag filter 9, which can stretch the outer sleeve 52 on the surface of the inner sleeve 51, so as to prevent the distance between the air inlet and the air outlet from being too short, which will affect the efficiency of the filtration and ventilation operation. Avoid airflow disturbances.

As shown in Figures 1 and 3, the blower 2 includes a casing 21 communicated with the air inlet pipe 1 and the air guide pipe 6, a wind wheel 23 arranged inside and connected to the output end of the motor, and a wind wheel 23 arranged on the outer surface of the wind wheel 23. A number of blades 22; the inside of the casing 21 is provided with a block 24 on the side close to the air guide pipe 6, wherein the motor is electrically connected to the battery, and the battery is powered. Tube 6 discharges outwards.

It should be noted that during the electric power construction process, a large amount of dust is generated in the narrow construction space, so the portable fresh air system needs to be used for dust removal and ventilation operations. First, the operator holds the rubber block on the handle 3 firmly 10, then start the blower 2, and the motor drives the blades 22 on the wind wheel 23 to rotate, so that the external air enters the blower 2 through the air inlet pipe 1, and is discharged from the air guide pipe 6 under the action of the blades 22, with dust The air is transported to the bag filter 9 in the exhaust element 5, the dust in the air is trapped in the bag filter 9, and the filtered gas is discharged from the outer sleeve 52 to realize the dust removal and filtration operation of the gas. The air exhaust part 5 is a sleeve structure composed of an inner sleeve 51 and an outer sleeve 52. When the portable fresh air system needs to be used, the outer sleeve 52 can be stretched on the surface of the inner sleeve 51 to avoid the air inlet. If the distance from the air outlet is too short, it will affect the efficiency of the filtration and ventilation operation and avoid the interference of the air flow; when it is not necessary to use the portable fresh air system, the outer sleeve 52 can be contracted on the surface of the inner sleeve 51, thereby reducing the The volume of the overall fresh air system is easy to carry.

The above examples only express several implementations of the utility model, and the description thereof is relatively specific and detailed, but it should not be construed as limiting the patent scope of the utility model. It should be noted that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (6)

1. A portable fresh air system for power construction in a narrow space, comprising an air inlet pipe (1), an air blower (2) arranged at one end of the air inlet pipe (1), and an air guide pipe ( 6), characterized in that it also includes a compression cover (7) arranged at the end of the air guide pipe (6) away from the air blower (2), and a compression cover (7) located at the end of the air guide tube (6) away from the The exhaust element (5) capable of telescopic operation, the bag filter (9) placed in the exhaust element (5); Wherein, the detachable connection between the pressing cover plate (7) and the exhaust piece (5) is through a fastening knob (8), and a There is a support plate (4), and two handles (3) are arranged on the support plate (4). 2. A portable fresh air system for electric power construction in a narrow space according to claim 1, characterized in that: the handle (3) has a U-shaped structure, and the inside of the middle part of the handle (3) is equipped with Rubber blocks (10). 3. A portable fresh air system for electric power construction in a narrow space according to claim 1, characterized in that: the exhaust element (5) includes an air duct (6) arranged on the back of the pressing cover (7) ) on one side and has an inner sleeve (51) with several through holes (53), an outer sleeve (52) sleeved on the outer surface of the inner sleeve (51), and an outer sleeve (52) located on the outer surface of the outer sleeve (52) and A fastening screw (54) matched with the through hole (53) and threaded. 4. A portable fresh air system for power construction in a narrow space according to claim 3, characterized in that: the inside of the inner casing (51) is provided with a retaining ring (55) for placing a bag filter (9) ). 5. A portable fresh air system for electric power construction in a narrow space according to claim 1, characterized in that: the blower (2) includes air intake pipes (1) and air guide pipes (6) connected respectively A casing (21), a wind wheel (23) arranged inside and connected to the output end of the motor, and several blades (22) arranged on the outer surface of the wind wheel (23). 6. A portable fresh air system for power construction in a narrow space according to claim 5, characterized in that: a stopper (24) is provided on the inner side of the casing (21) close to the air duct (6) ).