Electric protective ventilation fan

Abstract

An electric protective ventilation fan, which relates to the technical field of protective equipment. It includes: a shell, the shell is detachably assembled with external protective equipment, and the external protective equipment has a gas exchange port, and the shell is provided with an air inlet and an air outlet; an air inlet port, the air inlet port is detachably assembled with the air inlet of the shell; a ventilation structure, the ventilation structure is arranged in the shell, and is fixedly installed on the inner wall of the shell, and the ventilation structure is used to discharge the gas inside the protective equipment to the outside; a control component, the control component is arranged in the shell, and is located between the ventilation structure and the inner wall of the shell, the control component is connected to the ventilation structure, and the control component is used to control the opening and closing of the ventilation structure; and a rechargeable power supply, the rechargeable power supply is connected to the control component, and supplies power to the control component and the ventilation structure. The electric protective clothing ventilation fan adopting the above technical solution has the advantages of good ventilation effect, ingenious design, easy disassembly and assembly, easy to carry, and good gas filtering effect.

Description

Technical Field

[0001] The invention relates to the technical field of protective equipment, and in particular to an electric protective ventilation fan. Background Art

[0002] Protective clothing and protective masks are protective equipment that need to be worn during special working periods or special work tasks, and are used to protect oneself from injury. In the prior art, most protective clothing or protective masks are airtight when used. In particular, medical protective clothing is used to isolate germs, harmful ultrafine dust, acidic solutions, saline solutions, etc. in medical environments.

[0003] Most existing protective clothing is made of materials with poor air permeability, such as PP non-woven fabrics. Wearing such protective clothing for a long time can easily cause the wearer to sweat a lot, resulting in a large loss of physical strength. In addition, since it is not convenient to drink water after wearing protective clothing, the wearer who sweats a lot cannot get water for a long time, which can easily lead to fatigue and even collapse in severe cases. Therefore, a protective device that can both achieve internal ventilation of protective clothing and prevent external breath from entering the protective clothing is urgently needed. Summary of the invention

[0004] The purpose of the present invention is to provide an electric protective ventilation fan in view of the defects and shortcomings of the prior art. The electric protective clothing ventilation fan can be detachably assembled with the protective equipment, and the fan blades are driven to rotate by an internal power source. The air inside the protective equipment enters from the air inlet port, and is then discharged from the air inlet, through the through hole, and the rectangular hole to the air outlet, thereby realizing the circulation of air inside the protective clothing. The electric protective clothing ventilation fan arranged in this way has the advantages of good ventilation effect, ingenious design, easy disassembly and assembly, easy carrying, and good gas filtering effect.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: an electric protective ventilation fan, comprising: a shell, the shell is detachably assembled with an external protective article, and the external protective article has a gas exchange port, and the shell is provided with an air inlet and an air outlet; an air inlet port, the air inlet port is detachably assembled with the air inlet of the shell; a ventilation structure, the ventilation structure is arranged in the shell and fixedly mounted on the inner wall of the shell, the ventilation structure is used to discharge the gas inside the protective article to the outside, so as to realize internal ventilation or exhaust of the protective article; a control component, the control component is arranged in the shell and is located between the ventilation structure and the inner wall of the shell, the control component is connected to the ventilation structure, and the control component is used to control the opening and closing of the ventilation structure; and a rechargeable power supply, the rechargeable power supply is connected to the control component, and supplies power to the control component and the ventilation structure.

[0006] Further, the shell includes: a bottom cover, a first card block protruding from the inner side wall of the bottom cover, an air outlet notch is provided on one side of the bottom cover, and an installation cavity is provided on the bottom cover, and the control component is arranged in the installation cavity; and a top cover, a card slot portion adapted to the first card block is provided on the top cover, the card slot portion is integrally formed with the top cover, the air inlet is provided on the top cover, and the top cover is used to form an air outlet in combination with the air outlet notch.

[0007] Furthermore, the ventilation structure includes: a frame body, a cavity is provided on the frame body, and a hollow mounting column is provided at the center position of the bottom of the cavity, a U-shaped notch is provided on one side of the frame body, and the U-shaped notch is provided corresponding to the air outlet; a cover body, the cover body and the frame body are snap-fitted and assembled, a through hole connected to the cavity is provided on the cover body, and the through hole is provided corresponding to the air inlet, and the cover body and the U-shaped notch are combined to form a rectangular hole; a power source, the main body of the power source is fixedly installed in the hollow cavity of the mounting column, and the power output shaft of the power source protrudes from the hollow cavity and extends along the axial direction of the mounting shaft; and, fan blades, the fan blades are fixedly installed on the power output shaft of the power source, and the fan blades can move synchronously with the power output shaft to drive the gas in the protective equipment to enter from the through hole and be discharged from the rectangular hole.

[0008] Furthermore, when the top cover and the bottom cover are snap-fitted and assembled, the ventilation structure is pressed and fixed between the top cover and the bottom cover, and an elastic protective member is provided between the cover body and the top cover, and the elastic protective member is sleeved on the cover body.

[0009] Furthermore, a baffle is rotatably mounted on the bottom cover, the baffle is located at the rectangular hole, and is used to realize the opening or closing of the rectangular hole, and the baffle is used to prevent external dust from entering the interior of the protective equipment through the rectangular hole.

[0010] Furthermore, the air inlet port includes: a port fixing part, the assembly part is detachably assembled with the shell, and the port fixing part is provided with a ventilation hole connected with the air outlet; and a support part, the support part is snap-fitted with the port fixing part, and the support part is provided with a ventilation hole, and the support part is used to maintain a gap between the inner wall of the protective equipment and the human body.

[0011] Furthermore, the air inlet protrudes from the outer wall of the shell, and a rotating slot is provided on the outer wall; a mounting portion is provided on the port fixing member close to the side of the shell, and a rotating block is provided on the mounting portion; the rotating block is rotatably engaged with the rotating slot to realize detachable assembly between the port fixing member and the shell.

[0012] Furthermore, a snap-in platform is protrudingly provided on one side of the port fixing member close to the support member, and a snap-in groove is provided on the side wall of the snap-in platform; the support member is plug-in assembled with the snap-in platform, and a second snap-in block is provided on the inner side wall of the support member; the second snap-in block is snap-in assembled with the snap-in groove to realize the snap-in assembly between the support member and the port fixing member.

[0013] Furthermore, a threaded column is protruding from the bottom of the installation cavity, and the control component includes: a control circuit board, which is plugged into the threaded column, and the control circuit board is fixedly installed in the installation cavity by assembling the control circuit board with the threaded column through fastening screws; a gear control switch, which is arranged on the control circuit board; a power start switch, which is arranged on the control circuit board; and a charging port, which is arranged on the control circuit board.

[0014] Furthermore, the protective equipment is any one of protective clothing, protective masks, and protective masks.

[0015] After adopting the above technical scheme, the beneficial effect of the present invention is as follows: when using the electric protective ventilation fan, first operate the power start switch to put the ventilation fan in working state, then control the gear control switch to adjust the gear of the ventilation fan, at this time, the fan blades are actively driven by the power source, so that the air inside the protective equipment enters the ventilation fan from the air inlet port, and then enters the installation cavity through the vents and through holes, and then the fan blades continue to rotate, and the air entering the installation cavity drives the baffle out of the rectangular hole to rotate, and is discharged from the protective equipment through the air outlet after passing through the rectangular hole, so that the continuous rotation of the fan blades promotes the gas inside the protective clothing to communicate with the gas outside, ensuring the air circulation inside the protective clothing. In addition, by setting the support, there is always a gap between the inside of the protective clothing and the human body, thereby ensuring the rate at which the air inside the protective clothing enters the vent. The ventilation fan adopting the above technical scheme has the advantages of good ventilation effect, ingenious design, convenient disassembly and assembly, convenient carrying, and good gas filtration effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a schematic diagram of the first overall structure of this embodiment;

[0018] Figure 2This is a second overall structural diagram of this embodiment;

[0019] Figure 3 It is the first exploded view of this embodiment;

[0020] Figure 4 is the second exploded view of this embodiment;

[0021] Figure 5 It is an exploded view of a ventilation structure of this embodiment.

[0022] Description of reference numerals: 100, housing; 101, air inlet; 102, air outlet; 103, air outlet notch; 104, mounting cavity; 110, bottom cover; 111, first clamping block; 112, baffle; 120, top cover; 121, clamping slot; 200, air inlet port; 201, vent; 202, vent; 203, rotating clamping slot; 204, clamping slot; 210, port fixing member; 211, mounting portion; 212, rotating clamping block; 213, mounting portion; 214, mounting portion; 215, mounting portion; 216, mounting portion; 217, mounting portion; 218, mounting portion; 219, mounting portion; 220, mounting portion; 221, mounting portion; 222, mounting portion; 223, mounting portion; 224, mounting portion; 225, mounting portion; 226, mounting portion; 227, mounting portion; 228, mounting portion; 229, mounting portion; 230, mounting portion; 231, mounting portion; 232, mounting portion; 233, mounting portion; 234, mounting portion; 235, mounting portion; 236, mounting portion; 237, mounting portion; 238, mounting portion; 239, mounting portion; 240, mounting portion; 241, mounting portion; 242, mounting portion; 243, mounting portion; 244, mounting portion; 245, mounting portion; 246, mounting portion; 247, mounting portion; 248, mounting portion; 249, mounting portion; 250, mounting portion; 251, mounting portion; 252, mounting portion; 253, mounting portion; 240, mounting portion; 241, mounting portion; 2 3. Card-joining platform; 220. Support member; 221. Second card block; 300. Ventilation structure; 301. U-shaped notch; 302. Through hole; 310. Frame; 311. Hollow mounting column; 320. Cover; 330. Power source; 340. Fan blades; 350. Elastic protective member; 400. Control assembly; 410. Control circuit board; 420. Gear control switch; 430. Power start switch; 440. Charging port; 500. Rechargeable power source. DETAILED DESCRIPTION

[0023] The present invention is further described in detail below in conjunction with the accompanying drawings.

[0024] This specific embodiment is only an explanation of the present invention, and it is not a limitation of the present invention. After reading this specification, those skilled in the art can make non-creative modifications to this embodiment as needed, but as long as it is within the scope of the claims of the present invention, it is protected by the patent law.

[0025] This embodiment relates to an electric protective ventilation fan, such as Figure 1-5 As shown, it includes: a shell 100, an air inlet port 200, a ventilation structure 300, a control component 400 and a rechargeable power source 500.

[0026] Specifically, the shell 100 is detachably assembled with the external protective equipment, and the external protective equipment has a gas exchange port. The shell 100 is provided with an air inlet 101 and an air outlet 102. The air inlet port 200 is detachably assembled with the air inlet 101 of the shell 100. The ventilation structure 300 is arranged in the shell 100 and fixedly mounted on the inner wall of the shell 100. The ventilation structure 300 is used to discharge the gas inside the protective equipment to the outside to realize internal ventilation or exhaust of the protective equipment. The control component 400 is arranged in the shell 100 and is located between the ventilation structure 300 and the inner wall of the shell 100. The control component 400 is connected to the ventilation structure 300 and is used to control the opening and closing of the ventilation structure 300. The rechargeable power supply 500 is connected to the control component 400 and supplies power to the control component 400 and the ventilation structure 300.

[0027] It should be noted that the protective equipment includes protective clothing, protective masks, protective masks, etc., and the protective equipment in this embodiment is protective clothing. The protective clothing is provided with a gas exchange port, and a filter structure is provided at the exchange port. The gas exchange port is mainly provided to provide air to enter the protective clothing, and then form a circulation with the air discharged by the ventilation fan. The rechargeable power supply 500 is a lithium battery.

[0028] Furthermore, if Figure 1-5 As shown, the housing 100 includes: a bottom cover 110 and a top cover 120. Among them, a first card block 111 is protrudingly provided on the inner side wall of the bottom cover 110. And an air outlet notch 103 is provided on one side of the bottom cover 110, and an installation cavity 104 is provided at the middle position. The installation cavity 104 is mainly used for the installation of the control component 400. A card slot portion 121 adapted to the first card block 111 is provided on the top cover 120, and the card slot portion 121 is integrally formed with the top cover 120. The air inlet 101 is provided on the top cover 120, and the top cover 120 is used to form an air outlet 102 in combination with the air outlet notch 103. In this embodiment, the rechargeable power supply 500 is fixedly installed on the bottom cover 110 away from the air outlet 102, and the rechargeable power supply 500 is fixed by pressing.

[0029] Furthermore, if Figure 1-5As shown, the ventilation structure 300 includes: a frame 310, a cover 320, a power source 330 and a fan blade 340. Specifically, a cavity is provided on the frame 310, and a hollow mounting column 311 is provided at the center position of the bottom of the cavity. A U-shaped notch 301 is provided on one side of the frame 310, and the U-shaped notch 301 is provided corresponding to the air outlet 102. The cover 320 and the frame 310 are snap-fitted and assembled. A through hole 302 connected to the cavity is provided on the cover 320, and the through hole 302 is provided corresponding to the air inlet 101. The cover 320 and the U-shaped notch 301 are combined to form a rectangular hole. The main body of the power source 330 is fixedly installed in the hollow cavity of the mounting column. The power output shaft of the power source 330 protrudes from the hollow cavity and extends along the axial direction of the mounting shaft. In this embodiment, the power source 330 is a motor. The fan blades 340 are fixedly mounted on the power output shaft of the power source 330 , and the fan blades 340 can move synchronously with the power output shaft, thereby driving the gas in the protective equipment to enter from the through hole 302 and be discharged from the rectangular hole.

[0030] Preferably, if Figure 1-5 As shown, when the top cover 120 and the bottom cover 110 are snap-fitted and assembled, the ventilation structure 300 is pressed and fixed between the top cover 120 and the bottom cover 110. In order to protect the cover body 320 and improve the firmness and stability of the ventilation structure 300 assembly, an elastic protection member 350 is provided between the cover body 320 and the top cover 120, and the elastic protection member 350 is sleeved on the cover body 320.

[0031] Preferably, if Figure 1-5 As shown, a baffle 112 is rotatably mounted on the bottom cover 110. The baffle 112 is located at the rectangular hole and is used to open or close the rectangular hole. The baffle 112 is used to prevent external dust from entering the interior of the protective equipment through the rectangular hole.

[0032] Furthermore, if Figure 1-5 As shown, the air inlet port 200 includes: a port fixing member 210 and a support member 220. The port fixing member 210 is detachably assembled with the housing 100, and the port fixing member 210 is provided with a vent 201 that is connected with the air outlet 102. The support member 220 is snap-fitted with the port fixing member 210, and the support member 220 is provided with a vent 202, which is used to maintain a gap between the inner wall of the protective article and the human body, thereby ensuring the air intake volume and air intake speed of the vent 202.

[0033] Preferably, if Figure 1-5As shown, the air inlet 101 protrudes from the outer wall of the housing 100, and a rotation slot 203 is provided on the outer wall. A mounting portion 211 is provided on the port fixing member 210 near the housing 100, and a rotation block 212 is provided on the mounting portion 211. The rotation block 212 is rotationally engaged with the rotation slot 203 to achieve a detachable assembly between the port fixing member 210 and the housing 100.

[0034] Preferably, if Figure 1-5 As shown, a clamping platform 213 is protruding from one side of the port fixing member 210 near the support member 220, and a clamping groove 204 is provided on the side wall of the clamping platform 213. The support member 220 is plugged and assembled with the clamping platform 213, and a second clamping block 221 is provided on the inner side wall of the support member 220. The second clamping block 221 is clamped and assembled with the clamping groove 204 to realize the clamping assembly between the support member 220 and the port fixing member 210.

[0035] Furthermore, if Figure 1-5 As shown, a threaded column is protruding from the bottom of the installation cavity 104, and the control assembly 400 includes: a control circuit board 410, a gear control switch 420, a power start switch 430 and a charging port 440. Specifically, the control circuit board 410 is plugged into the threaded column, and the control circuit board 410 is fixedly installed in the installation cavity 104 by assembling the screws and the threaded column. The gear control switch 420, the power start switch 430 and the charging port 440 are all arranged on the control circuit board 410.

[0036] It is worth noting that the inner wall of the mounting cavity 104 is provided with a gear control slot, a power start slot and a charging terminal mounting opening. The gear control switch 420, the power start switch 430 and the charging port 440 are respectively installed in the gear control slot, the power start slot and the charging terminal mounting opening.

[0037] The working principle of this embodiment is as follows: when using the electric protective ventilation fan, first operate the power start switch 430 to put the ventilation fan in working state, then control the gear control switch 420 to adjust the gear of the ventilation fan. At this time, the fan blade 340 is driven by the power source 330 to actively allow the air inside the protective equipment to enter the ventilation fan from the air inlet port 200, and then enter the installation cavity 104 through the ventilation hole 201 and the through hole 302. Then the fan blade 340 continues to rotate, and the air entering the installation cavity 104 drives the baffle 112 out of the rectangular hole to rotate, and is discharged from the protective equipment through the air outlet 102 after passing through the rectangular hole. In this way, the continuous rotation of the fan blade 340 promotes the mutual communication between the gas inside the protective clothing and the gas outside, ensuring the air circulation inside the protective clothing. In addition, by setting the support 220, there is always a gap between the inside of the protective clothing and the human body, thereby ensuring the rate at which the air inside the protective clothing enters the ventilation hole 202. The ventilation fan adopting the above technical solution has the advantages of good ventilation effect, ingenious design, convenient disassembly and assembly, convenient carrying, and good gas filtering effect.

[0038] The above is only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in this field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. An electric protective ventilation fan, characterized in that: include: A shell (100), wherein the shell (100) is detachably assembled with an external protective article, and the external protective article is provided with a gas exchange port, and the shell (100) is provided with an air inlet (101) and an air outlet (102); An air inlet port (200), the air inlet port (200) being detachably assembled with the air inlet (101) of the housing (100); a ventilation structure (300), the ventilation structure (300) being arranged in the shell (100) and fixedly mounted on the inner wall of the shell (100), the ventilation structure (300) being used to discharge the gas inside the protective equipment to the outside, so as to realize ventilation or exhaust inside the protective equipment; a control component (400), the control component (400) being arranged in the housing (100) and located between the ventilation structure (300) and an inner wall of the housing (100), the control component (400) being connected to the ventilation structure (300), and the control component (400) being used to control the opening and closing of the ventilation structure (300); and, a rechargeable power source (500), the rechargeable power source (500) being connected to the control component (400) and supplying power to the control component (400) and the ventilation structure (300); the housing (100) comprising: A bottom cover (110), wherein a first clamping block (111) is protrudingly provided on an inner side wall of the bottom cover (110), an air outlet notch (103) is provided on one side of the bottom cover (110), and an installation cavity (104) is provided on the bottom cover (110), and the control component (400) is arranged in the installation cavity (104); and, a top cover (120), wherein the top cover (120) is provided with a card slot portion (121) adapted to the first card block (111), the card slot portion (121) and the top cover (120) are integrally formed, the air inlet (101) is provided on the top cover (120), and the top cover (120) is used to be combined with the air outlet notch (103) to form an air outlet (102); the ventilation structure (300) comprises: A frame (310), wherein a cavity is provided on the frame (310), and a hollow mounting column (311) is provided at the center position of the bottom of the cavity, and a U-shaped notch (301) is provided on one side of the frame (310), and the U-shaped notch (301) is provided corresponding to the air outlet (102); A cover body (320), the cover body (320) and the frame body (310) being snap-fitted and assembled, the cover body (320) being provided with a through hole (302) communicating with the cavity, and the through hole (302) being provided corresponding to the air inlet (101), and the cover body (320) and the U-shaped notch (301) being combined to form a rectangular hole; A power source (330), the main body of the power source (330) is fixedly mounted in the hollow cavity of the mounting column, and the power output shaft of the power source (330) protrudes out of the hollow cavity and extends along the axial direction of the mounting column; and The fan blade (340) is fixedly mounted on the power output shaft of the power source (330), and the fan blade (340) can move synchronously with the power output shaft to drive the gas in the protective equipment to enter from the through hole (302) and be discharged from the rectangular hole; when the top cover (120) and the bottom cover (110) are snap-fitted and assembled, the ventilation structure (300) is pressed and fixed between the top cover (120) and the bottom cover (110), and an elastic protective member (350) is provided between the cover body (320) and the top cover (120), and the elastic protective member (350) is sleeved on the cover body (320); The air inlet port (200) comprises: a port fixing member (210), the port fixing member being detachably assembled with the housing (100), and the port fixing member (210) being provided with a ventilation hole (201) communicating with the air outlet (102); and A support member (220) is provided, wherein the support member (220) is snap-fitted with the port fixing member (210), and a vent (202) is provided on the support member (220), and the support member (220) is used to maintain a gap between the inner wall of the protective equipment and the human body; the air inlet (101) protrudes from the outer wall of the shell (100), and a rotation slot (203) is provided on the outer wall; a mounting portion (211) is provided on the port fixing member (210) on a side close to the shell (100), and a rotation block (212) is provided on the mounting portion (211); the rotation block (212) is rotationally snap-fitted with the rotation slot (203) to achieve detachable assembly between the port fixing member (210) and the shell (100).

2. The electric protective ventilation fan according to claim 1, characterized in that: A baffle (112) is rotatably mounted on the bottom cover (110); the baffle (112) is located at the rectangular hole and is used to open or close the rectangular hole; the baffle (112) is used to prevent external dust from entering the interior of the protective equipment through the rectangular hole.

3. The electric protective ventilation fan according to claim 1, characterized in that: A clamping platform (213) is protrudingly provided on one side of the port fixing member (210) close to the support member (220), and a clamping groove (204) is provided on the side wall of the clamping platform (213); the support member (220) is plug-fitted and assembled with the clamping platform (213), and a second clamping block (221) is provided on the inner side wall of the support member (220); the second clamping block (221) is clamped and assembled with the clamping groove (204), so as to realize the clamping assembly between the support member (220) and the port fixing member (210).

4. The electric protective ventilation fan according to claim 3, characterized in that: A threaded column is protruding from the bottom of the installation cavity (104), and the control component (400) comprises: A control circuit board (410), the control circuit board (410) being plugged into the threaded column, and the control circuit board (410) being fixedly installed in the installation cavity (104) by assembling the control circuit board (410) with the threaded column through fastening screws; a gear control switch (420), wherein the gear control switch (420) is arranged on the control circuit board (410); a power startup switch (430), the power startup switch (430) being arranged on the control circuit board (410); and, A charging port (440), wherein the charging port (440) is arranged on the control circuit board (410).

5. The electric protective ventilation fan according to claim 1, characterized in that: The protective equipment is any one of protective clothing, protective masks, and protective masks.

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