Ventilation device for protective clothing

Abstract

The utility model relates to the technical field of medical instruments, in particular to a ventilation device for protective clothing. The utility model provides a ventilation device for protective clothing, which can realize circulation and alternate use of internal and external air, reduce the working pressure of a filter tip and prolong the service life of the filter tip. A ventilation device for protective clothing comprises a bonding plate, a dehumidifier, a switching valve, a filter tip and an internal circulation assembly, the dehumidifier is connected to the bonding plate, the switching valve is connected to the left side of the middle of the dehumidifier, the filter tip is clamped to the front side of the middle of the dehumidifier, an exhaust hole is formed in the rear side of the middle of the dehumidifier, and the internal circulation assembly is connected to the dehumidifier. According to the utility model, switching is carried out by controlling the switching valve, damp air in the protective clothing is dehumidified and cooled through the dehumidifier, and treated dry air is conveyed back into the protective clothing through the internal circulation air pipe and the connector, so that internal and external air can be circularly and alternately used, the working pressure of the filter tip is reduced, and the service life of the filter tip is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a ventilation device for protective clothing. Background Art

[0002] Medical protective clothing refers to protective clothing used by medical personnel and people entering specific medical and health areas (such as patients, hospital visitors, people entering infected areas, etc.). Its function is to isolate pathogens, harmful ultrafine dust, acid and alkaline solutions, electromagnetic radiation, etc., to ensure the safety of personnel and keep the environment clean. During use, protective clothing is difficult to ventilate due to its good airtightness, which makes the wearer very stuffy after wearing it, which can easily cause discomfort to the wearer.

[0003] The existing ventilation devices for protective clothing usually have ventilation equipment installed on the protective clothing, and the air inside the protective clothing is ventilated and exchanged with the outside air through the ventilation equipment. During the ventilation process, the air entering the protective clothing needs to be filtered by a filtering device to prevent infection to the wearer. However, the existing device can only exchange the air inside the protective clothing with the outside air, which causes the filtering device to need to continuously perform filtering work, affecting the service life.

[0004] Therefore, in view of the above problems, a protective clothing ventilation device has been developed which can realize the alternating use of internal and external air circulation, reduce the working pressure of the filter, and increase the service life of the filter. Utility Model Content

[0005] In order to overcome the shortcomings of existing devices that can only exchange the air inside the protective clothing with the outside air, resulting in the need for the filtering equipment to continuously perform filtering work, which affects the service life, the utility model provides a protective clothing ventilation device that can realize alternating use of internal and external air circulation, reduce the working pressure of the filter, and increase the service life of the filter.

[0006] The technical solution is as follows: A protective clothing ventilation device includes an adhesive plate, a dehumidifier, a switching valve, a filter and an internal circulation component. The dehumidifier is connected to the adhesive plate, the switching valve is connected to the left side of the middle of the dehumidifier, the filter is clamped on the front side of the middle of the dehumidifier, and an exhaust hole is opened on the rear side of the middle of the dehumidifier. The dehumidifier is connected to the internal circulation component. Under the action of the dehumidifier, the outside air is transported to the inside of the protective clothing through the exhaust hole, and the outside air is filtered through the filter.

[0007] Optionally, the internal circulation component includes an internal circulation air pipe, a connecting head, a locking block, an adhesive sleeve, a locking ring, an elastic part and a sealing plate. The upper and lower parts of the dehumidifier are symmetrically connected to the internal circulation air pipe, the ends of the internal circulation air pipe are connected to connecting heads, the connecting heads are connected to locking blocks, the rear sides of the connecting heads are provided with adhesive sleeves, the front sides of the adhesive sleeves are connected with locking rings, the connecting heads are connected to adjacent adhesive sleeves through locking blocks and locking rings, the inside of the adhesive sleeves are slidably connected with sealing plates, the sealing plates are connected to adjacent adhesive sleeves with elastic parts, the connecting head is docked with the adjacent adhesive sleeves, the sealing plate is pushed backward to slide through the connecting head, the elastic part is compressed by force, the connecting head is rotated ninety degrees, the rotation of the connecting head drives the locking block to rotate, the rotation of the locking block is engaged with the locking ring, and then the sealing plate is driven to slide forward under the action of the elastic part, thereby pressing and limiting the connecting head and the locking block, thereby preventing the connecting head from separating from the adhesive sleeve.

[0008] Optionally, a handle is provided on the switching valve.

[0009] Optionally, the filter is a detachable structure.

[0010] Optionally, a sealing ring is provided on each connector.

[0011] Optionally, the elastic member is a spring.

[0012] Beneficial effect: The utility model switches by controlling the switching valve, dehumidifies and cools the humid air inside the protective clothing through the dehumidifier, and transports the treated dry air back into the protective clothing through the internal circulation air pipe and the connector, so as to realize the alternating use of internal and external air circulation, reduce the working pressure of the filter, and increase the service life of the filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model.

[0014] Figure 2 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 3 It is a schematic diagram of the three-dimensional structure of the first part of the utility model.

[0016] Figure 4 It is a schematic diagram of the three-dimensional structure of the second part of the utility model.

[0017] Figure 5 It is a three-dimensional structural sectional view of the utility model.

[0018] Explanation of the reference numerals: 1. adhesive plate, 2. dehumidifier, 3. switching valve, 4. filter tip, 5. exhaust hole, 6. internal circulation air pipe, 7. connector, 8. locking block, 9. adhesive sleeve, 10. locking ring, 11. spring, 12. sealing plate. DETAILED DESCRIPTION

[0019] The above scheme is further described below in conjunction with specific examples. It should be understood that these examples are used to illustrate the present application and are not limited to the scope of the present application. The implementation conditions adopted in the examples can be further adjusted according to the conditions of the specific manufacturer, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0020] A protective clothing ventilation device, such as Figure 1-Figure 5 As shown, it includes an adhesive plate 1, a dehumidifier 2, a switching valve 3, a filter 4 and an internal circulation component. The dehumidifier 2 is connected to the adhesive plate 1, and the switching valve 3 is connected to the left side of the middle of the dehumidifier 2. The switching valve 3 is provided with a handle to facilitate the rotation of the switching valve 3. The filter 4 is clamped on the front side of the middle of the dehumidifier 2. The filter 4 is a detachable structure to facilitate the replacement of the filter element in the filter 4. An exhaust hole 5 is opened on the rear side of the middle of the dehumidifier 2. The dehumidifier 2 is connected to the internal circulation component, and the internal circulation component includes an internal circulation air pipe 6, a connector 7, a locking block 8, an adhesive sleeve 9, a locking ring 10, a spring 11 and a sealing Plate 12, the upper and lower parts of the dehumidifier 2 are symmetrically connected to the internal circulation air pipe 6, the ends of the internal circulation air pipe 6 are connected to the connecting heads 7, the connecting heads 7 are provided with sealing rings, which can improve the sealing between the connecting heads 7 and the internal circulation air pipe 6, the connecting heads 7 are connected to the locking blocks 8, the rear sides of the connecting heads 7 are provided with adhesive sleeves 9, the front sides of the adhesive sleeves 9 are connected with locking rings 10, the connecting heads 7 are connected to the adjacent adhesive sleeves 9 through the locking blocks 8 and the locking rings 10, the inside of the adhesive sleeves 9 are slidably connected with sealing plates 12, and the sealing plates 12 are connected to the adjacent adhesive sleeves 9 with springs 11.

[0021] When the utility model is in use, the adhesive plate 1 needs to be first installed and fixed on the rear side of the waist of the protective clothing, and then the adhesive sleeves 9 are respectively installed and fixed on the shoulders and legs of the protective clothing, and then the connector 7 is docked with the adjacent adhesive sleeves 9, and the sealing plate 12 is pushed to slide backwards by the connector 7, and the spring 11 is compressed so that the locking block 8 is located inside the locking ring 10, and then the connector 7 is rotated ninety degrees, and the rotation of the connector 7 drives the locking block 8 to rotate, so that the locking block 8 is engaged with the locking ring 10, and then the connector 7 is released, and the sealing plate 12 is driven to slide forward under the action of the spring 11, so as to compress and limit the connector 7 and the locking block 8, thereby preventing the connector 7 from being separated from the adhesive sleeve 9. Under the action of the dehumidifier 2, the outside air is transported to the inside of the protective suit through the exhaust hole 5, and the outside air is filtered through the filter 4. After ventilation with the outside for a period of time, the switching valve 3 can be controlled to switch, so as to stop the transmission of the outside air, and the humid air inside the protective suit is transported to the dehumidifier 2 through the exhaust hole 5. Under the action of the dehumidifier 2, the moisture in the air is condensed into water droplets, and then the treated dry air is transported back to the protective suit through the internal circulation air pipe 6 and the connector 7, thereby realizing internal circulation ventilation, reducing the air humidity and temperature inside the protective suit, and at the same time, the internal and external air circulation can be used alternately, reducing the working pressure of the filter 4 and increasing the service life of the filter 4.

[0022] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A protective clothing ventilation device, characterized in that: The invention comprises an adhesive plate (1), a dehumidifier (2), a switching valve (3), a filter (4) and an internal circulation component. The adhesive plate (1) is connected to the dehumidifier (2). The switching valve (3) is connected to the left side of the middle of the dehumidifier (2). The filter (4) is clamped on the front side of the middle of the dehumidifier (2). An exhaust hole (5) is opened on the rear side of the middle of the dehumidifier (2). The dehumidifier (2) is connected to the internal circulation component. Under the action of the dehumidifier (2), the outside air is transported to the inside of the protective clothing through the exhaust hole (5), and the outside air is filtered through the filter (4).

2. A protective clothing ventilation device according to claim 1, characterized in that: The internal circulation component comprises an internal circulation air pipe (6), a connector (7), a locking block (8), an adhesive sleeve (9), a locking ring (10), an elastic member and a sealing plate (12); the upper and lower parts of the dehumidifier (2) are both symmetrically connected to the internal circulation air pipe (6); the ends of the internal circulation air pipe (6) are both connected to the connector (7); the connector (7) is connected to the locking block (8); the rear side of the connector (7) is provided with an adhesive sleeve (9); the front side of the adhesive sleeve (9) is connected to the locking ring (10); the connector (7) is connected to the adjacent adhesive sleeve (9) through the locking block (8) and the locking ring (10); the inside of the adhesive sleeve (9) is connected in a sliding manner A sealing plate (12) is provided, and elastic parts are connected between the sealing plates (12) and the adjacent adhesive sleeves (9). The connecting head (7) is docked with the adjacent adhesive sleeves (9), and the sealing plate (12) is pushed to slide backwards by the connecting head (7). The elastic part is compressed and the connecting head (7) is rotated ninety degrees. The rotation of the connecting head (7) drives the locking block (8) to rotate. The locking block (8) rotates and engages with the locking ring (10). Then, under the action of the elastic part, the sealing plate (12) is driven to slide forward, thereby pressing and limiting the connecting head (7) and the locking block (8), thereby preventing the connecting head (7) from being separated from the adhesive sleeve (9).

3. A protective clothing ventilation device according to claim 1, characterized in that: The switching valve (3) is provided with a handle.

4. A protective clothing ventilation device according to claim 1, characterized in that: The filter tip (4) is a detachable structure.

5. A protective clothing ventilation device according to claim 2, characterized in that: The connector (7) is provided with a sealing ring.

6. A protective clothing ventilation device according to claim 2, characterized in that: The elastic member is a spring (11).

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