Fan-shaped exhalation valve of respiratory protection article

Abstract

The utility model discloses a fan-shaped exhalation valve of a respiratory protection article, which relates to the technical field of respirator protection articles and comprises a connecting cylinder, an annular groove is arranged at the upper end of the connecting cylinder, four groups of clamping grooves distributed at equal intervals are arranged on the inner side of the connecting cylinder, an air inlet cylinder is clamped in the annular groove, and a plurality of groups of air inlet holes are arranged at the upper end of the air inlet cylinder in a penetrating manner. And an O-shaped rubber ring is mounted at the lower end of the air inlet cylinder. According to the breather valve, the fixing frame, the connecting frame, the air filtering net and the fixing rod are arranged, when parts in the connecting barrel are damaged, the air inlet barrel is opened to replace the damaged parts in the connecting barrel, the service life of the breather valve is prolonged, the connecting frame is fixed through the fixing frame and the fixing rod, the connecting frame is more convenient and rapid to install and replace, and the practicability is high. Due to the fact that the air filter screen is clamped on the connecting frame, when the air filter screen is damaged, the air filter screen can be replaced, and the breather valve has the advantages that the service life of the breather valve can be prolonged, materials are saved, and purchase cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of respirator protective equipment, in particular to a fan-shaped exhalation valve of a respiratory protective equipment. Background Art

[0002] The exhalation valve is a non-return valve used in respiratory protective equipment, which only allows exhaled gas to be discharged through it and prevents inhalation of gas.

[0003] When a breathing valve in the existing market is damaged, the breathing valve is replaced as a whole, but most of the parts in the breathing valve are intact and can continue to be used. Therefore, replacing the breathing valve as a whole leads to material waste and increases the purchase cost of the breathing valve. Utility Model Content

[0004] In order to solve the above technical problems, a fan-shaped exhalation valve for respiratory protective equipment is provided. This technical solution solves the problem proposed in the above background technology that the overall replacement of the exhalation valve leads to material waste and increases the purchase cost of the exhalation valve.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] A fan-shaped exhalation valve of a respiratory protective device comprises a connecting tube, the upper end of the connecting tube is provided with an annular groove, the inner side of the connecting tube is provided with four groups of equidistantly distributed slots, the annular groove is clamped with an air intake tube, the upper end of the air intake tube is penetrated with a plurality of groups of air intake holes, the lower end of the air intake tube is installed with an O-type rubber ring, the inner side of the connecting tube is fixedly connected with a fixing frame, the upper and lower ends of the fixing frame are provided with cross grooves, the end of the fixing frame is provided with a rectangular groove, the center of the cross groove is provided with a first threaded hole, the fixing frame is clamped with a connecting frame, the lower end of the connecting frame is fixedly connected with a cross, the end of the cross is provided with a raised portion, the bottom end of the raised portion is fixedly connected with a rectangular block, the center of the connecting frame is penetrated with a second threaded hole, and the inner side of the connecting frame is provided with four groups of mounting grooves.

[0007] Preferably, the O-shaped rubber ring is slidably connected to the annular groove, and the size of the O-shaped rubber ring is consistent with the size of the annular groove.

[0008] Preferably, the cross is slidably connected to the cross groove, the size of the cross is the same as the size of the cross groove, the protrusion is slidably connected to the slot, and the rectangular block is slidably connected to the rectangular groove.

[0009] Preferably, an air filter mesh is clamped inside the installation groove.

[0010] Preferably, the second threaded hole is threadedly connected to a fixing rod, an end of the fixing rod extends to the inside of the first threaded hole, and the outer surface of the fixing rod is rotatably connected to a fan blade.

[0011] Preferably, the first threaded hole and the second threaded hole have the same structure.

[0012] Preferably, the circular structure formed by the connecting frame and the air filter net has the same size as the inner diameter of the connecting tube.

[0013] Compared with the prior art, the utility model provides a fan-shaped exhalation valve for respiratory protection products, which has the following beneficial effects:

[0014] The utility model is provided with an air intake cylinder, a fixing frame, a connecting frame, an air filter net and a fixing rod. When parts inside the connecting cylinder are damaged, the air intake cylinder is opened to replace the damaged parts inside the connecting cylinder, thereby improving the service life of the breathing valve. The fixing frame and the fixing rod fix the connecting frame, making the installation and replacement of the connecting frame more convenient and quick. Since the air filter net is connected to the connecting frame, the air filter net can be replaced when it is damaged. The above advantages can not only improve the service life of the breathing valve, but also save materials and reduce the purchase cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 It is a structural schematic diagram of the connecting tube and the fixing frame in the utility model;

[0017] Figure 3 It is a structural schematic diagram of the air intake cylinder in the utility model;

[0018] Figure 4 It is a structural schematic diagram of the connecting frame and the air filter net in the utility model;

[0019] Figure 5 It is a structural schematic diagram of the cross in the utility model;

[0020] Figure 6 It is a structural schematic diagram of the fixed rod and the fan blades in the utility model.

[0021] The numbers in the figure are:

[0022] 1. Connecting tube; 2. Annular groove; 201. Card slot; 3. Inlet tube; 301. Inlet hole; 302. O-ring; 4. Fixing frame; 401. Cross groove; 402. Rectangular groove; 403. First threaded hole; 5. Connecting frame; 501. Cross; 502. Raised part; 503. Rectangular block; 504. Second threaded hole; 505. Mounting groove; 6. Air filter; 7. Fixing rod; 701. Fan blade. DETAILED DESCRIPTION

[0023] The following description is used to disclose the present invention so that those skilled in the art can implement the present invention. The preferred embodiments described below are only examples, and those skilled in the art may think of other obvious variations.

[0024] Reference Figure 1-6 As shown, a fan-shaped exhalation valve of a respiratory protective device comprises a connecting tube 1, an annular groove 2 is provided at the upper end of the connecting tube 1, four groups of equally spaced slots 201 are provided on the inner side of the connecting tube 1, an air inlet tube 3 is clamped on the annular groove 2, a plurality of groups of air inlet holes 301 are penetrated through the upper end of the air inlet tube 3, an O-type rubber ring 302 is installed on the lower end of the air inlet tube 3, the O-type rubber ring 302 is slidably connected to the annular groove 2, the size of the O-type rubber ring 302 is consistent with the size of the annular groove 2, a fixing frame 4 is fixedly connected to the inner side of the connecting tube 1, a cross slot 401 is provided at both the upper and lower ends of the fixing frame 4, a rectangular slot 402 is provided at the end of the fixing frame 4, and a first threaded hole 403 is provided at the center of the cross slot 401.

[0025] The fixing frame 4 is clamped with a connecting frame 5, the lower end of the connecting frame 5 is fixedly connected with a cross 501, the end of the cross 501 is provided with a protrusion 502, the bottom end of the protrusion 502 is fixedly connected with a rectangular block 503, the cross 501 is slidably connected with the cross groove 401, the size of the cross 501 is the same as that of the cross groove 401, the protrusion 502 is slidably connected with the card slot 201, the rectangular block 503 is slidably connected with the rectangular groove 402, and the center of the connecting frame 5 passes through an opening A second threaded hole 504 is provided, and the first threaded hole 403 has the same structure as the second threaded hole 504. Four groups of mounting grooves 505 are opened on the inner side of the connecting frame 5, and an air filter net 6 is clamped inside the mounting groove 505. The circular structure size formed by the connecting frame 5 and the air filter net 6 is the same as the inner diameter size of the connecting tube 1. The second threaded hole 504 is threadedly connected with a fixing rod 7, and the end of the fixing rod 7 extends to the inside of the first threaded hole 403. The outer surface of the fixing rod 7 is rotatably connected with a fan blade 701.

[0026] Embodiment 1: Insert four groups of air filter nets 6 into the installation groove 505 to achieve the installation and fixation of the air filter nets 6. Cross grooves 401 are provided at the upper and lower ends of the fixing frame 4. Align the two groups of crosses 501 with the cross grooves 401, insert the rectangular block 503 into the rectangular groove 402, and insert the cross 501 into the cross groove 401 to achieve the installation of the connecting frame 5. Since the protrusion 502 is the same size as the card slot 201, the initial fixation of the connecting frame 5 can be achieved. In addition, the first threaded hole 403 and the second threaded hole 504 are located on the same horizontal plane. Screw the fixing rod 7 into the first threaded hole 403 to achieve the secondary fixation of the connecting frame 5 to prevent the connecting frame 5 from falling off. Insert the O-type rubber ring 302 into the annular groove 2 to achieve the installation of the air inlet cylinder 3. Finally, install the connecting cylinder 1 on the respiratory protective equipment.

[0027] The installation process of the utility model specifically includes the following steps:

[0028] Step 1: Install four air filter screens 6 on the connection frame 5 through the installation slots 505;

[0029] Step 2: snap the cross 501 into the cross slot 401 to achieve the preliminary installation of the connection frame 5;

[0030] Step 3: Screw the fixing rod 7 into the first threaded hole 403 to fix the connecting frame 5;

[0031] Step 4: Insert the O-type rubber ring 302 into the annular groove 2 to install the air intake cylinder 3.

[0032] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and the specification only describe the principles of the utility model. The utility model may be subject to various changes and improvements without departing from the spirit and scope of the utility model. These changes and improvements fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A fan-shaped exhalation valve for respiratory protection equipment, It is characterized in that The invention comprises a connecting tube (1), wherein an annular groove (2) is provided at the upper end of the connecting tube (1), four groups of equally spaced slots (201) are provided on the inner side of the connecting tube (1), an air intake tube (3) is connected to the annular groove (2), a plurality of groups of air intake holes (301) are provided through the upper end of the air intake tube (3), an O-type rubber ring (302) is installed at the lower end of the air intake tube (3), a fixing frame (4) is fixedly connected to the inner side of the connecting tube (1), a cross slot (401) is provided at the upper and lower ends of the fixing frame (4), and the end of the fixing frame (4) is A rectangular groove (402) is provided, a first threaded hole (403) is provided at the center of the cross groove (401), a connecting frame (5) is clamped on the fixing frame (4), a cross (501) is fixedly connected at the lower end of the connecting frame (5), a protrusion (502) is provided at the end of the cross (501), a rectangular block (503) is fixedly connected at the bottom end of the protrusion (502), a second threaded hole (504) is provided through the center of the connecting frame (5), and four groups of mounting grooves (505) are provided on the inner side of the connecting frame (5).

2. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: The O-type rubber ring (302) is slidably connected to the annular groove (2), and the size of the O-type rubber ring (302) is consistent with the size of the annular groove (2).

3. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: The cross (501) is slidably connected to the cross groove (401), the size of the cross (501) is the same as the size of the cross groove (401), the protrusion (502) is slidably connected to the clamping groove (201), and the rectangular block (503) is slidably connected to the rectangular groove (402).

4. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: An air filter net (6) is clamped inside the installation groove (505).

5. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: The second threaded hole (504) is threadedly connected to a fixing rod (7), an end of the fixing rod (7) extends to the inside of the first threaded hole (403), and the outer surface of the fixing rod (7) is rotatably connected to a fan blade (701).

6. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: The first threaded hole (403) and the second threaded hole (504) have the same structure.

7. A fan-shaped exhalation valve for respiratory protection equipment according to claim 1, Features: The dimensions of the circular structure formed by the connecting frame (5) and the air filter net (6) are the same as the inner diameter of the connecting cylinder (1).

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