CN111657165A

CN111657165A - Special mask for police dog

Info

Publication number: CN111657165A
Application number: CN201910175247.XA
Authority: CN
Inventors: 关起飞; 邹强
Original assignee: Tianjin University
Current assignee: Tianjin University
Priority date: 2019-03-08
Filing date: 2019-03-08
Publication date: 2020-09-15

Abstract

The invention belongs to the field of masks, and particularly relates to a special mask for a police dog, which comprises a shell, an air inlet, a fan, a photovoltaic film and a filter layer, wherein the shell is used for covering the nose and the mouth of the police dog; the filtering layer comprises a KOH filtering layer and a double-layer activated carbon layer from outside to inside; the KOH filter layer comprises a waterproof breathable layer and KOH solid particles arranged in the waterproof breathable layer; the activated carbon layer comprises a waterproof breathable layer and activated carbon particles arranged in the waterproof breathable layer; the shell is evenly provided with air holes for the exhalation of air. The mask 1) has small influence, removes air pollutants under the condition of not influencing the olfactory ability of the police dog, and avoids threatening the health of the police dog. 2) Convenience, removable interchangeable filter disc, convenient and practice thrift material resources financial resources. 3) Experience is good, is equipped with small-size fan, makes the convenient circulation of air.

Description

Special mask for police dog

Technical Field

The invention belongs to the field of masks, and particularly relates to a special mask for a police dog.

Background

Police dogs are dogs which are specially trained and used for tracking, identifying, searching and catching, searching and exploding and the like. In the investigation of various serious cases, police dogs are used for reconnaissance. Police dogs can screen the direction of criminals escaping and find places hiding stolen licenses. Sometimes, police dogs can identify criminal suspects according to the odor of the remnants left by criminals on the scene.

However, sniffing is the most basic work for police dogs. The characteristic taste of some dangerous goods can be found by police dogs and reacted. However, the smell sense ability of the police dog is greatly influenced by directly covering the mask on the nose of the police dog.

Disclosure of Invention

The invention aims to provide a special mask for a police dog.

In order to achieve the purpose, the invention adopts the following technical scheme:

a special mask for a police dog comprises a shell for covering the mouth and nose of the police dog, an air inlet arranged on the shell, a fan communicated with the air inlet, a photovoltaic film arranged on the surface of the shell for supplying power to the fan, and a filter layer arranged in the shell; the filtering layer comprises a KOH filtering layer and a double-layer activated carbon layer from outside to inside; the KOH filtering layer comprises a waterproof breathable layer and KOH solid particles arranged in the waterproof breathable layer; the activated carbon layer comprises a waterproof breathable layer and activated carbon particles arranged in the waterproof breathable layer. The shell is provided with air holes for air breathing.

The surface of the shell is provided with an opening for replacing the filter layer.

The fan comprises a centrifugal impeller opposite to the air inlet, a motor assembly for driving the centrifugal impeller and a supporting seat connected with the shell and used for bearing the motor assembly; the motor assembly is electrically connected with the photovoltaic film.

The activated carbon layer is in a circular shape with the thickness of 1mm and the diameter of 2 mm.

Compared with the prior art, the invention has the beneficial effects that:

(1) the influence is little, and air pollutants are removed under the condition of not influencing the olfaction capability of the police dog, so that the health of the police dog is prevented from being threatened. KOH, as a basic substance, readily absorbs acidic gases such as SO2, NO2, and does not generate toxic substances after reacting with acidic gases. As a common reagent, it is widely used for absorption of acid gas. Activated carbon materials are often used as a superior adsorbent due to their unique adsorption surface structure characteristics and surface chemical properties. The activated carbon material has stable chemical property, acid resistance, alkali resistance and heat resistance, and can be recycled.

(2) Convenience, removable interchangeable filter disc, convenient and practice thrift material resources financial resources.

(3) Experience is good, is equipped with small-size fan, makes the convenient circulation of air.

Drawings

Fig. 1 is a schematic view of a local structure of a special mask for police dogs;

Detailed Description

In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.

Fig. 1 shows a special mask for a police dog, which comprises a shell for covering the mouth and nose of the police dog, an air inlet 2 arranged on the shell, a fan 3 communicated with the air inlet, a photovoltaic film 4 arranged on the surface of the shell for supplying power to the fan, and a filter layer arranged inside the shell; the filtering layer comprises a KOH filtering layer and a double-layer activated carbon layer from outside to inside; the KOH filtering layer comprises a waterproof breathable layer and KOH solid particles arranged in the waterproof breathable layer; the activated carbon layer comprises a waterproof breathable layer and activated carbon particles arranged in the waterproof breathable layer. The activated carbon layer is in a circular shape with the thickness of 1mm and the diameter of 2 mm. The shell is provided with air holes for air breathing. By using the reactions of 2KOH +2NO2 → KNO3+ KNO2+ H2O,2KOH + SO2 → K2SO3+ H2O, NO2 in the air is converted into tasteless solid KNO3, KNO2 and water, and SO2 in the air is converted into K2SO3 and H2O. Reduce NO2 injury while not affecting the smell of the police dog. The adsorbability of the activated carbon is utilized to absorb inhalable particles, and the harm of the inhalable particles is reduced. The double-layer activated carbon filter layer can completely absorb unabsorbed clean NO2 and SO2 and inhalable particles.

A fan: the fan comprises a centrifugal impeller opposite to the air inlet, a motor assembly for driving the centrifugal impeller and a supporting seat connected with the shell and used for bearing the motor assembly; the motor assembly is electrically connected with the photovoltaic film. Utilize the photovoltaic film, with the drive of inside little fan, increase air flow rate avoids influencing police dog smell ability. The surface of the shell is provided with an opening 1 for replacing the filter layer.

The above description is only a preferred embodiment of the present invention, and for those skilled in the art, the present invention should not be limited by the description of the present invention, which should be interpreted as a limitation.

Claims

1. A special mask for a police dog is characterized by comprising a shell for covering the mouth and nose of the police dog, an air inlet arranged on the shell, a fan communicated with the air inlet, a photovoltaic film arranged on the surface of the shell and used for supplying power to the fan, and a filter layer arranged inside the shell; the filtering layer comprises a KOH filtering layer and a double-layer activated carbon layer from outside to inside; the KOH filtering layer comprises a waterproof breathable layer and KOH solid particles arranged in the waterproof breathable layer; the activated carbon layer comprises a waterproof breathable layer and activated carbon particles arranged in the waterproof breathable layer; the shell is evenly provided with air holes for air breathing.

2. The mask as claimed in claim 1, wherein the surface of the housing has an opening for replacing the filter.

3. The mask as claimed in claim 1, wherein the fan comprises a centrifugal impeller facing the air inlet, a motor assembly for driving the centrifugal impeller, and a support base connected to the housing and receiving the motor assembly; the motor assembly is electrically connected with the photovoltaic film.

4. The mask special for police dogs as claimed in claim 1, wherein the activated carbon layer is a circle with a thickness of 1mm and a diameter of 2 mm.