Air supply type collective protection system air inlet device

Abstract

The utility model discloses an air supply type collective protection system air inlet device for solving the poor air tightness of the air supply type collective protection system air inlet device, and the electromagnetic compatibility does not satisfy the requirement technical problem, belongs to the air supply type protection system technical field. The utility model shell is through the conductive yellow pretreatment, and the top of shell is vertical square cylinder shape, and the middle part is horizontal cylinder shape, and the vertical square cylinder four corners of the top of shell are provided with four semicircular ribs in the intersection part of top and middle part, and the four semicircular ribs are commonly installed with control unit, and the vertical square cylinder top is installed with the cover plate, and the electromagnet subassembly is installed in one side inside horizontal cylinder, and one side of electromagnet subassembly is installed with position switch mounting piece, and one side of position switch mounting piece is installed with position sensor, and one side of horizontal cylinder is installed with dust cover, and the outer side of vertical square cylinder cylinder wall is connected with electric connector, and the one side of definition horizontal cylinder is air inlet, and the other side is air outlet.

Description

Technical Field

[0001] This utility model belongs to the technical field of air-supply protective systems, and specifically relates to an air inlet device for an air-supply collective protective system. Background Technology

[0002] Enclosed spaces are susceptible to contamination from radioactive dust, toxic chemical aerosols, biological agents, and other toxic and harmful substances. To prevent contaminated air from entering through gaps in doors and windows, ensuring a safe and protected space and maximizing the survival capabilities of personnel within the space under nuclear, biological, and chemical threats, a supplied-air collective protective system is required. The system's air inlet needs to be equipped with a device to control the system's operation and shutdown.

[0003] Existing air-supply type collective protective systems have poor airtightness of air inlet devices, fail to meet electromagnetic compatibility requirements, have opening and closing times exceeding 5 seconds, are prone to causing personnel to be harmed by toxic agents, and are bulky and heavy. Utility Model Content

[0004] The purpose of this utility model is to provide an air inlet device for a forced-air collective protective system, which solves the technical problems of poor air tightness, opening and closing time exceeding 5 seconds, and electromagnetic compatibility failure of existing forced-air collective protective system air inlet devices, which can easily lead to personnel being harmed by toxic agents.

[0005] This utility model is achieved using the following technical solution:

[0006] An air inlet device for a forced-air collective protection system includes a housing, an electromagnet assembly, and an electrical connector. The housing undergoes conductive yellow pretreatment. The top of the housing is a vertical rectangular tube, and the middle part is a horizontal cylindrical tube. At the intersection of the top and middle parts of the housing, four semi-circular ribs are provided inward at the four corners of the vertical rectangular tube. A control unit is mounted on each of the four semi-circular ribs. A cover plate is installed on the top of the vertical rectangular tube. The electromagnet assembly is installed inside the horizontal cylindrical tube. A position switch mounting component is installed on the side of the electromagnet assembly away from the inside of the horizontal cylindrical tube. A position sensor is installed on the side of the position switch mounting component away from the inside of the horizontal cylindrical tube. The position switch mounting component and the electromagnet assembly are electrically sealed together by a conductive adhesive strip. A dust cover is installed on one side of the horizontal cylindrical tube. An electrical connector is connected to the outer wall of the vertical rectangular tube. The electrical connector is electrically connected to the control unit, the position sensor, and the electromagnet assembly. One side of the horizontal cylindrical tube is defined as the air inlet, and the other side as the air outlet.

[0007] In application, the housing is a single irregular-shaped space, and it is pre-treated with conductive yellow to ensure electromagnetic compatibility. The electromagnet components and control unit are reasonably arranged and installed to ensure airtightness. It not only filters out large particulate impurities, but also protects the electromagnet components. The electrical connector integrates power supply and signal.

[0008] Further preferably, it also includes a sealing disc, which is installed on one side of the horizontal cylinder, and the dust cover is installed on the side of the sealing disc away from the horizontal cylinder. The sealing disc has a stepped circular hole in the center, and the electromagnet assembly passes through the stepped circular hole in the center of the sealing disc and is fixed by a hexagonal nut. The stepped circular hole is used to install the electromagnet assembly.

[0009] More preferably, the electromagnet assembly and the sealing disc are isolated by a silicone seal.

[0010] More preferably, the position mounting component and the electromagnet assembly are provided with position-corresponding grooves, and the conductive adhesive strip is installed in the grooves of the position switch mounting component and the electromagnet assembly.

[0011] In a further preferred embodiment, an annular sealing groove is provided on the end face of the housing connected to the dust cover on the side of the air inlet. A conductive sealing strip is installed in the annular sealing groove, and the dust cover is sealed to the housing through the conductive sealing strip.

[0012] More preferably, the electromagnet assembly includes an iron wire, a low-temperature resistant protective sleeve, a fixing base, and an electromagnetic coil, wherein the low-temperature resistant protective sleeve is fixed in the fixing base and connected to the electromagnetic coil through the iron wire.

[0013] In a further preferred embodiment, a toothed structure is machined onto the outer wall of the air outlet of the housing, four ribs are machined inward inside the horizontal cylinder, and the four ribs are connected to a disc. A through stepped hole is provided on the disc, and the electromagnet assembly is fixed by passing through the stepped through hole on the disc. A mounting foot is machined onto the bottom of the housing, and mounting holes are machined on the wall of the vertical square cylinder for installing an electrical connector, thereby enhancing the firmness of the pipe connection, facilitating the installation of the electromagnet assembly, and improving the ease and firmness of installation.

[0014] More preferably, the sealing disc is machined from an aluminum alloy plate, and an annular sealing groove two is provided on the end face of the sealing disc. The diameter of the first annular sealing groove is larger than the diameter of the second annular sealing groove. A conductive sealing strip one is installed in the second annular sealing groove. A fan-shaped groove is machined on the end face of the sealing disc near the housing. That is, the sealing disc and the housing are sealed by the conductive sealing strip one, which is inserted into the annular sealing groove two of the sealing disc and the housing, ensuring the airtightness of the air inlet device. The fan-shaped groove increases strength while reducing weight.

[0015] In a further preferred embodiment, the control unit is fixed to the semi-circular rib by bolts, and the bolts are fitted with nylon sleeve isolation posts.

[0016] More preferably, the housing and the cover are connected by Phillips head countersunk screws, the electromagnet assembly, the position switch mounting component, and the position sensor are installed into the housing by Phillips head pan screw assemblies, and the dust cover is connected to the housing by Phillips head pan screw assemblies to ensure conductivity and sealing.

[0017] This invention employs machining to process components such as the housing and sealing disc, and pre-treats them with conductive yellow coating to ensure electromagnetic compatibility. A circular groove is machined to firmly embed the conductive sealing strip with calculated compression, ensuring the airtightness of the air inlet. Firmly embedding the conductive strip into the groove not only ensures conductivity and avoids electromagnetic interference but also guarantees the airtightness of the air outlet. The electromagnet assembly and control unit are rationally laid out and installed, saving installation space and reducing weight. The air outlet of the housing is machined into a toothed structure for easy replacement, secure connection, and guaranteed airtightness. After conductive yellow coating treatment, a high-quality epoxy primer is sprayed followed by a polyurethane semi-gloss enamel coating, greatly improving environmental adaptability. Attached Figure Description

[0018] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with the present invention and, together with the description, serve to explain the principles of the present invention.

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a front view of the structure of this utility model.

[0021] Figure 2 This utility model Figure 1 View A.

[0022] Figure 3 This diagram shows the structure of the electromagnet assembly of this utility model.

[0023] Figure 4 This is a front view of the shell structure of this utility model.

[0024] Figure 5 This is a top view of the shell structure of this utility model.

[0025] Figure 6 This utility model Figure 4 Sectional view of AA.

[0026] Figure 7 This is a front view of the sealing disc structure of this utility model.

[0027] Figure 8 This utility model Figure 7 Rotated sectional view of AA.

[0028] In the diagram: 1-House, 2-Cross-head countersunk screw, 3-Cover plate, 4-Control unit, 5-Nylon sleeve isolation post, 6-Electromagnet assembly, 7-Position switch mounting part, 8-Position sensor, 9-Conductive rubber strip, 10-Conductive sealing rubber strip one, 11-Silicone protective sleeve, 12-Hex nut, 13-Sealing disc, 14-Dust cover, 15-Cross-head pan head screw assembly, 16-Electrical connector, 17-Iron wire, 18-Low temperature resistant protective sleeve, 19-Fixing base, 20-Electromagnetic coil, 111-Mounting hole, 112-Four ribs, 113-Mounting foot, 114-Semi-circular rib, 115-Toothed structure, 116-Annular sealing groove one, 117-Fan-shaped groove, 118-Stepped round hole, 119-Annular sealing groove two. Detailed Implementation

[0029] To better understand the above-mentioned objectives, features, and advantages of this utility model, the solution of this utility model will be further described below. It should be noted that, unless otherwise specified, the embodiments of this utility model and the features thereof can be combined with each other.

[0030] In this description, it should be noted that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. It should also be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joint" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms according to the specific circumstances.

[0031] Many specific details are set forth in the following description in order to provide a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only some embodiments of the present invention, and not all embodiments.

[0032] The specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings. Example

[0033] An air inlet device for a ventilation-type collective protection system includes a housing 1, an electromagnet assembly 6, and an electrical connector 16. The housing 1 is pretreated with conductive yellow. The top of the housing 1 is a vertical square cylinder, and the middle part is a horizontal cylindrical cylinder. At the intersection of the top and middle parts of the vertical square cylinder, four semi-circular ribs 114 are provided inward at the four corners. A control unit 4 is installed on the four semi-circular ribs 114. A cover plate 3 is installed on the top of the vertical square cylinder. The electromagnet assembly 6 is installed inside the horizontal cylindrical cylinder. A position switch mounting part 7 is installed on the side of the electromagnet assembly 6 away from the inside of the horizontal cylindrical cylinder. A position sensor 8 is installed on the side of the position switch mounting part 7 away from the inside of the horizontal cylindrical cylinder. The position switch mounting part 7 and the electromagnet assembly 6 are electrically sealed by a conductive adhesive strip 9. A dust cover 14 is installed on one side of the horizontal cylindrical cylinder. An electrical connector 16 is connected to the outside of the vertical square cylinder wall. The electrical connector 16 is electrically connected to the control unit 4, the position sensor 8, and the electromagnet assembly 6. One side of the horizontal cylindrical cylinder is defined as the air inlet, and the other side is defined as the air outlet.

[0034] It also includes a sealing disc 13, which is installed on one side of the horizontal cylinder. A dust cover 14 is installed on the side of the sealing disc 13 away from the horizontal cylinder. A stepped circular hole 118 is provided in the center of the sealing disc 13. The electromagnet assembly 6 passes through the stepped circular hole 118 in the middle of the sealing disc 13 and is fixed by a hexagonal nut 12.

[0035] The electromagnet assembly 6 and the sealing plate 13 are isolated by a silicone protective sleeve 11.

[0036] The position mounting component and the electromagnet assembly 6 are provided with grooves corresponding to the position, and the conductive rubber strip 9 is installed in the grooves of the position switch mounting component 7 and the electromagnet assembly 6.

[0037] An annular sealing groove 116 is provided on the end face of the housing 1 connected to the dust cover 14 on the side of the air inlet. A conductive sealing strip 2 is installed in the annular sealing groove 116. The dust cover 14 is sealed to the housing 1 through the conductive sealing strip 2. Preferably, an annular sealing groove 3 is provided on the top of the housing. A conductive sealing strip 3 is installed in the annular sealing groove 3. The cover plate is sealed to the housing through the conductive sealing strip 3. The conductive sealing strip has the functions of conducting electricity and sealing.

[0038] The electromagnet assembly 6 includes an iron wire 17, a low-temperature resistant protective sleeve 18, a fixing base 19, and an electromagnetic coil 20. The low-temperature resistant protective sleeve 18 is fixed in the fixing base 19 and is connected to the electromagnetic coil 20 through the iron wire 17.

[0039] A toothed structure 115 is machined onto the outer wall of the air outlet of the housing 1. Four ribs 112 are machined inward inside the horizontal cylinder. The four ribs are connected to a disc. A through stepped hole is provided on the disc. The electromagnet assembly 6 passes through the stepped hole on the disc and is fixed. A mounting foot 113 is machined onto the bottom of the housing 1. A circular mounting hole 111 is machined on the wall of the vertical square cylinder for installing an electrical connector 16.

[0040] The sealing disc 13 is machined from an aluminum alloy plate. An annular sealing groove 119 is provided on the end face of the sealing disc 13. The diameter of the first annular sealing groove 116 is larger than the diameter of the second annular sealing groove 119. A conductive sealing strip 10 is installed inside the second annular sealing groove 119. A fan-shaped groove 117 is machined on the end face of the sealing disc 13 near the housing 1. That is, the sealing disc 13 and the housing 1 are sealed together by the conductive sealing strip 10.

[0041] The control unit 4 is fixed to the semi-circular rib 114 by bolts, and the bolts are fitted with nylon sleeve isolation columns 5.

[0042] The housing 1 and the cover plate 3 are connected by cross-slot countersunk screws 2. The electromagnet assembly 6, the position switch mounting part 7, and the position sensor 8 are installed into the housing 1 by cross-slot pan head screw assembly 15. The dust cover 14 is connected to the housing 1 by cross-slot pan head screw assembly 15.

[0043] The working principle is as follows:

[0044] In this embodiment, the air inlet consists of a control unit, a cover plate, and a dust cover.

[0045] This embodiment mainly consists of a housing 1, a cross-slot countersunk screw 2, a cover plate 3, a control unit 4, a nylon sleeve isolation post 5, an electromagnet assembly 6, a position switch mounting part 7, a position sensor 8, a conductive rubber strip 9, a conductive sealing rubber strip 10, a silicone protective cover 11, a hexagonal nut 12, a sealing disc 13, a dust cover 14, a cross-slot pan head screw assembly 15, and an electrical connector 16. The housing 1 and cover plate 3 are connected by Phillips head countersunk screws 2; the electromagnet assembly 6, position switch mounting part 7, and position sensor 8 are installed into the housing 1 by Phillips head pan screw assembly 15; the electromagnet assembly 6 passes through the stepped round hole 118 in the middle of the sealing plate 13 and is fixed to the housing 1 by hexagonal nut 12; the electromagnet assembly 6 and the sealing plate 13 are isolated by a silicone protective sleeve 11; the sealing plate 13 and the housing 1 are sealed by a conductive sealing strip 10; the position switch mounting part 7 and the electromagnet assembly 6 are electrically sealed by a conductive strip 9; the dust cover 14 is connected to the housing 1 by Phillips head pan screw assembly 15.

[0046] The housing 1 is machined from aluminum alloy plate and pre-treated with conductive yellow to ensure electromagnetic compatibility; the air inlet is machined with an annular sealing groove 116 for installing conductive sealing strip 2; the air outlet is machined with a toothed structure 115 to enhance the firmness of the pipe connection; four ribs 112 are machined inside in the main view direction to facilitate the installation of electromagnet assembly 6; a semi-circular rib 114 is machined inside in the top view direction for installing control unit 4; mounting feet 113 are machined to enhance installation convenience and firmness; mounting holes 111 for electrical connector 16 are machined.

[0047] The sealing disc 13 is machined from an aluminum alloy plate. It has a machined annular sealing groove 119 for installing the conductive sealing strip 10; a machined fan-shaped groove 117 to increase strength while reducing weight; and a machined stepped round hole 118 for installing the electromagnet assembly 6.

[0048] Electromagnetic compatibility is achieved through the following technical means:

[0049] Conductive yellow pretreatment of the housing and sealing disc;

[0050] Conductive adhesive strip between the housing and the cover plate;

[0051] Conductive adhesive strip between the sealing disc and the housing.

[0052] This utility model has the advantages of reasonable structure, small size, light weight, safety and reliability, beautiful appearance, convenient replacement and strong environmental adaptability.

[0053] This utility model has the following advantages:

[0054] 1. The housing is designed as a single irregular-shaped space by machining and pre-treated with conductive yellow to ensure electromagnetic compatibility. The electromagnet components and control unit are rationally laid out and installed to ensure airtightness.

[0055] 2. Both the housing and the sealing plate are machined with annular sealing grooves, into which the conductive sealing strip with the calculated compression is firmly embedded to ensure the airtightness of the air inlet;

[0056] 3. Grooves are machined into both the switch mounting housing and the electromagnet assembly to firmly embed the conductive rubber strip, which not only ensures conductivity and avoids electromagnetic interference, but also ensures the airtightness of the air outlet.

[0057] 4. The air outlet of the casing is machined into a toothed structure, which facilitates installation, enhances the connection firmness, and ensures airtightness;

[0058] 5. The casing is machined with feet to enhance ease of installation and stability;

[0059] 6. The electrical connector integrates power supply and signal processing into one unit;

[0060] 7. The sealing disc is made of aluminum alloy plate and then treated with conductive yellow coating to ensure electromagnetic compatibility. A conductive sealing strip is installed in a machined annular groove to ensure airtightness.

[0061] 8. The sealing disc is machined with a fan-shaped groove to increase strength while reducing weight;

[0062] 9. The sealing disc machine adds stepped circular holes for installing electromagnet components.

[0063] 10. Through reasonable layout, it saves installation space, reduces volume and weight, has an attractive appearance, and is easy to replace;

[0064] 11. After treatment with conductive yellow, a high-quality epoxy primer is sprayed on, followed by a semi-gloss polyurethane enamel coating, which greatly improves environmental adaptability.

[0065] The above description is merely a specific embodiment of this utility model, enabling those skilled in the art to understand or implement it. Although detailed descriptions have been provided with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments, and all should be covered by the protection scope of the claims.

Claims

1. An air inlet device for a forced-air collective protection system, characterized in that: The system includes a housing (1), an electromagnet assembly (6), and an electrical connector (16). The housing (1) is pretreated with conductive yellow. The top of the housing (1) is a vertical square tube, and the middle part of the housing (1) is a horizontal cylinder. At the intersection of the top and middle parts of the vertical square tube, four semi-circular ribs (114) are provided inward at the four corners. A control unit (4) is installed on the four semi-circular ribs (114). A cover plate (3) is installed on the top of the vertical square tube. The electromagnet assembly (6) is installed inside the horizontal cylinder on one side. The electromagnet assembly (6) is kept away from water. A position switch mounting component (7) is installed on one side of the inside of the flat cylinder. A position sensor (8) is installed on the side of the position switch mounting component (7) away from the inside of the horizontal cylinder. The position switch mounting component (7) and the electromagnet assembly (6) are electrically sealed by a conductive rubber strip (9). A dust cover (14) is installed on one side of the horizontal cylinder. An electrical connector (16) is connected to the outside of the vertical square cylinder wall. The electrical connector (16) is electrically connected to the control unit (4), the position sensor (8), and the electromagnet assembly (6). One side of the horizontal cylinder is defined as the air inlet, and the other side is defined as the air outlet.

2. The air inlet device for a forced-air collective protection system according to claim 1, characterized in that: It also includes a sealing disc (13), which is installed on one side of the horizontal cylinder. The dust cover (14) is installed on the side of the sealing disc (13) away from the horizontal cylinder. The sealing disc (13) has a stepped circular hole (118) in the center. The electromagnet assembly (6) passes through the stepped circular hole (118) in the middle of the sealing disc (13) and is fixed by a hexagonal nut (12).

3. The air inlet device for a forced-air collective protection system according to claim 2, characterized in that: The electromagnet assembly (6) and the sealing disc (13) are isolated by a silicone protective sleeve (11).

4. The air inlet device for a forced-air collective protection system according to claim 2, characterized in that: The position switch mounting part (7) and the electromagnet assembly (6) are provided with grooves corresponding to their positions, and the conductive rubber strip (9) is installed in the grooves of the position switch mounting part (7) and the electromagnet assembly (6).

5. The air inlet device for a forced-air collective protection system according to claim 2, characterized in that: An annular sealing groove (116) is provided on the end face of the housing (1) connected to the dust cover (14) on the side of the air inlet. A conductive sealing strip is installed in the annular sealing groove (116). The dust cover (14) is sealed to the housing (1) through the conductive sealing strip.

6. The air inlet device for a forced-air collective protection system according to claim 3, characterized in that: The electromagnet assembly (6) includes an iron wire (17), a low-temperature resistant protective sleeve (18), a fixing seat (19), and an electromagnetic coil (20). The low-temperature resistant protective sleeve (18) is fixed in the fixing seat (19) and is connected to the electromagnetic coil (20) through the iron wire (17).

7. The air inlet device for a forced-air collective protection system according to claim 1, characterized in that: The outer wall of the air outlet of the housing (1) is machined with a toothed structure (115). The inside of the horizontal cylinder is machined with four ribs (112). The four ribs are connected to a disc. The disc is provided with a through stepped hole. The electromagnet assembly (6) is fixed by passing through the stepped hole on the disc. The bottom of the housing (1) is machined with mounting feet (113). The vertical square cylinder wall is machined with mounting holes (111) for installing electrical connectors (16).

8. The air inlet device for a forced-air collective protection system according to claim 5, characterized in that: The sealing disc (13) is machined from an aluminum alloy plate. The end face of the sealing disc (13) is provided with an annular sealing groove two (119). The diameter of the annular sealing groove one (116) is larger than the diameter of the annular sealing groove two (119). A conductive sealing strip one (10) is installed in the annular sealing groove two (119). A fan-shaped groove (117) is machined on the end face of the sealing disc (13) near the shell (1). That is, the sealing disc (13) and the shell (1) are sealed by the conductive sealing strip one (10).

9. An air inlet device for a supply-flow collective protection system according to any one of claims 1-8, characterized in that: The control unit (4) is fixed to the semi-circular rib (114) by bolts, and the bolts are fitted with nylon sleeve isolation columns (5).

10. An air inlet device for a forced-air collective protection system according to any one of claims 1-8, characterized in that: The housing (1) and the cover plate (3) are connected by cross-slot countersunk screws (2). The electromagnet assembly (6), the position switch mounting part (7), and the position sensor (8) are installed into the housing (1) by cross-slot pan head screw assembly (15). The dust cover (14) is connected to the housing (1) by cross-slot pan head screw assembly (15).

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