Protective net suitable for port container quarantine biological aerosol

Abstract

The application provides a protective net for port container quarantine biological aerosol, and belongs to the technical field of biological aerosol protection. The protective net comprises a frame body with wheels and a biological aerosol protection net body installed on the frame body. Two sliding blocks are arranged on the two sides of the frame body, and a sliding groove is formed on the two sides of the frame body for lifting the sliding blocks. A connecting assembly is arranged between the four corners of the biological aerosol protection net body and the four sliding blocks, and the connecting assembly is used for fixing a corner of the biological aerosol protection net body on the corresponding sliding block. A lifting assembly is arranged on the two sides of the frame body for independently lifting each sliding block. A supporting assembly is arranged between the frame body and each sliding block for supporting the sliding block after lifting. The multiple frame bodies are pushed to surround the container, the biological aerosol protection net body can intercept the biological aerosol in the air, and the diffusion of the biological aerosol is effectively reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of bioaerosol protection, and more specifically, it relates to a protective net for bioaerosols in port container quarantine. Background Technology

[0002] Bioaerosols are airborne microbial particles that may carry pathogens or other harmful substances. In container shipping, these microorganisms can spread through cargo, packaging materials, or the surface of the container.

[0003] Currently, the protective netting widely used in container inspection at customs ports is mainly to prevent animals of different sizes from escaping, while also reducing the risk of injury to staff. However, the goods inside the containers may carry various pathogens, such as viruses and bacteria. These microorganisms may spread to the surrounding environment through airborne bioaerosols, posing a potential threat to inspection staff and their surroundings. Summary of the Invention

[0004] The purpose of this invention is to provide a protective net for bioaerosols in port container quarantine, in order to solve the technical problem that microorganisms carried by cargo inside containers pose a potential threat to inspection personnel and their surrounding environment in the prior art.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: A protective net for bioaerosols in port container quarantine is provided, comprising a frame with wheels and a bioaerosol protective net body installed on the frame. Two sliders slide on each side of the frame, and grooves are provided on both sides of the frame for the sliders to move up and down. Connecting components are correspondingly provided between the four corners of the bioaerosol protective net body and the four sliders, and the connecting components are used to fix one corner of the bioaerosol protective net body to the corresponding slider. Lifting components are provided on both sides of the frame for independently raising and lowering each slider. Supporting components are provided between the frame and each slider for supporting the sliders after they have been raised and lowered.

[0006] In one possible implementation, based on the above technical solutions, the lifting assembly includes a rack, a gear, and a motor. The rack is vertically fixed in the slide groove, the motor is mounted on the corresponding slider, and the gear is coaxially fixed on the motor output shaft and meshes with the rack.

[0007] In one possible implementation, based on the above technical solutions, a slide rail is provided at the middle of the bottom wall of the slide groove, and the slider slides on the slide rail.

[0008] In one possible implementation, based on the above technical solutions, the support component includes a ratchet, a pawl, and a separator. The ratchet is vertically disposed within the groove, and the pawl is disposed on the slider and engages with the ratchet. When the ratchet and the pawl are engaged, the slider cannot slide downwards. The separator is used to separate the ratchet from the pawl.

[0009] In one possible implementation, based on the above technical solutions, the connecting assembly includes a connecting post, a plug, and an elastic element. One end of the connecting post is fixed to the bioaerosol protective net. A slot for inserting the connecting post is provided on the outer side of the slider. A receiving groove is provided on the side of the slot away from the ratchet. An insertion hole communicating with the receiving groove is provided on one side of the connecting post. The plug is slidably disposed in the receiving groove. The elastic element is disposed in the receiving groove and connected to the plug. When the elastic element is in its natural state, the plug is simultaneously located in the receiving groove and the slot. The plug is hemispherical when located in the slot.

[0010] In one possible implementation, based on the above technical solutions, the separating component is a miniature drive cylinder, which is disposed within the receiving groove and faces the insert rod; a separating groove is formed on the inner sidewall of the sliding groove, and the ratchet is located within the separating groove and is divided into multiple segments in the vertical direction; each segment of the ratchet is horizontally slidably disposed within the separating groove, and a retaining spring is provided between each segment of the ratchet and the inner wall of the separating groove; a separating hole facing the receiving groove is connected between the slot and the separating groove; the separating component is used to push the insert rod through the separating hole and then squeeze the ratchet to separate this segment of the ratchet from the pawl; an arc-shaped notch is formed at the top of each segment of the ratchet for the hemispherical end of the insert rod to squeeze.

[0011] In one possible implementation, based on the above technical solutions, the elastic element is a spring.

[0012] In one possible implementation, based on the above technical solutions, the elastic element is a hollow rubber column.

[0013] In one possible implementation, based on the above technical solutions, the end of the insert rod that is inserted into the slot is hemispherical.

[0014] In one possible implementation, in conjunction with the above technical solutions, an air curtain is provided on the frame to shield one side of the bioaerosol protective net.

[0015] The beneficial effects of the protective net for bioaerosols in port container quarantine provided by this invention are as follows: Compared with the prior art, this invention, by pushing multiple frames to surround the container, can intercept bioaerosols in the air, effectively reducing the spread of bioaerosols; moreover, the four sliders on the frame are independently raised and lowered, allowing for the installation of bioaerosol protective nets of different sizes according to the size of the container, and the height of the bioaerosol protective nets can be adjusted according to the height of the container, so as to more directly intercept bioaerosols near the container. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 A front view of a protective net for bioaerosols in port container quarantine, provided as an embodiment of the present invention;

[0018] Figure 2 A partial cross-sectional view of the lifting assembly provided in an embodiment of the present invention;

[0019] Figure 3 A vertical sectional view of the connecting component and the supporting component provided in an embodiment of the present invention;

[0020] Figure 4 A cross-sectional view of the connecting component and the supporting component provided in an embodiment of the present invention;

[0021] Figure 5 A vertical sectional view of the slot, connecting post, and socket provided in an embodiment of the present invention;

[0022] Figure 6 A cross-sectional view of the insert rod, multi-segment ratchet, and retaining spring provided in an embodiment of the present invention.

[0023] The labels for the attached figures are as follows:

[0024] 1. Frame; 11. Slide rail; 111. Slide rail; 112. Separation groove; 2. Bioaerosol protection net; 3. Slider; 31. Slot; 32. Receiving groove; 33. Separation hole; 4. Connecting assembly; 41. Connecting column; 411. Insertion hole; 42. Insertion rod; 43. Elastic element; 5. Lifting assembly; 51. Rack; 52. Gear; 53. Motor; 6. Support assembly; 61. Racket; 611. Holding spring; 612. Arc-shaped notch; 62. Pawl; 63. Separation element. Detailed Implementation

[0025] To make the technical problems, technical solutions, and beneficial effects of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the described embodiments are only a part of the embodiments of this application, not all of them. The specific embodiments described herein are only used to explain the invention and are not intended to limit the invention. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0026] It should be further noted that the accompanying drawings and embodiments of the present invention mainly describe the concept of the present invention. Based on this concept, some specific forms and arrangements of connection relationships, positional relationships, power mechanisms, power supply systems, hydraulic systems and control systems may not be fully described. However, under the premise that those skilled in the art understand the concept of the present invention, they can implement the above-mentioned specific forms and arrangements in a well-known manner.

[0027] When a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0028] The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself. The terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0029] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways, and the spatial relative descriptions used herein will be interpreted accordingly.

[0030] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, and "several" means one or more, unless otherwise explicitly specified.

[0031] The present invention will now describe a protective net for bioaerosols used in port container quarantine.

[0032] like Figures 1 to 3 As shown, one embodiment of the present invention provides a protective net for bioaerosols in port container quarantine, including a frame 1 with wheels and a bioaerosol protective net body 2 installed on the frame 1. Two sliders 3 slide on each side of the frame 1, and grooves 11 are provided on both sides of the frame 1 for the sliders 3 to rise and fall. Connecting components 4 are provided between the four corners of the bioaerosol protective net body 2 and the four sliders 3, and the connecting components 4 are used to fix one corner of the bioaerosol protective net body 2 to the corresponding slider 3. Lifting components 5 are provided on both sides of the frame 1 for driving each slider 3 to rise and fall independently. Support components 6 are provided between the frame 1 and each slider 3 for supporting the slider 3 after it has been raised and lowered.

[0033] Specifically, in this embodiment, the bioaerosol protective net 2 is a micron-level protective net made of antibacterial material, or a HEPA filter can be used.

[0034] Depending on the size of the container, the four sliders 3 are first slid to the designated position using the lifting assembly 5. Then, a bioaerosol protective net 2 of appropriate size is installed on the four sliders 3 through the connecting assembly 4. Depending on the height of the container, the height of the four sliders 3 is adjusted synchronously using the lifting assembly 5 so that the bioaerosol protective net 2 can be more directly aligned with the container. Finally, the support assembly 6 supports the sliders 3 after they have slid, so as to reduce the workload of the lifting assembly 5.

[0035] This embodiment provides a protective net for bioaerosols in port container quarantine. Compared with the prior art, by pushing multiple frames 1 to surround the container, the bioaerosol protective net body 2 can intercept bioaerosols in the air, effectively reducing the spread of bioaerosols. Moreover, the four sliders 3 on the frame 1 can be raised and lowered independently, allowing for the installation of bioaerosol protective net bodies 2 of different sizes according to the size of the container, and the height of the bioaerosol protective net body 2 can be adjusted according to the height of the container, so as to more directly intercept bioaerosols near the container.

[0036] like Figure 2 As shown, based on the above embodiments, the present invention provides another specific embodiment as follows:

[0037] The lifting assembly 5 includes a rack 51, a gear 52 and a motor 53. The rack 51 is vertically fixed in the slide groove 11, the motor 53 is mounted on the corresponding slider 3, and the gear 52 is coaxially fixed on the output shaft of the motor 53 and meshes with the rack 51.

[0038] The motor 53 is started, which causes the gear 52 to rotate. The rotation of the gear 52 causes it to roll on the rack 51, which in turn drives the motor 53 and the pulley to slide, thus improving the lifting efficiency of the slider 3.

[0039] Furthermore, a slide rail 111 is provided at the middle of the bottom wall of the slide groove 11, and the slider 3 slides on the slide rail 111. The slide rail 111 can guide and limit the lifting and lowering of the slider 3, thereby improving the lifting and lowering stability of the slider 3.

[0040] like Figures 3 to 4 As shown, based on the above embodiments, the present invention provides another specific embodiment as follows:

[0041] The support assembly 6 includes a ratchet 61, a pawl 62, and a separator 63. The ratchet 61 is vertically disposed in the slide groove 11, and the pawl 62 is disposed on the slider 3 and engages with the ratchet 61. When the ratchet 61 and the pawl 62 are engaged, the slider 3 cannot slide downward. The separator 63 is used to separate the ratchet 61 from the pawl 62.

[0042] When the lifting assembly 5 drives the slider 3 to slide upward, the pawl 62 and the ratchet 61 can maintain a continuous meshing state, which improves the stability of the slider 3 sliding upward. After the slider 3 finishes sliding, the ratchet 61 and the pawl 62 provide support, which in turn supports the slider 3, reduces the force between the gear 52 and the rack 51, and extends the service life of the lifting assembly 5.

[0043] When slider 3 needs to slide downward, the ratchet 61 and pawl 62 are separated by the separator 63, and the lifting assembly 5 can drive slider 3 to descend. After slider 3 has descended, the separator 63 makes the ratchet 61 and pawl 62 re-engage.

[0044] like Figures 4 to 5 As shown, based on the above embodiments, the present invention provides another specific embodiment as follows:

[0045] The connecting component 4 includes a connecting post 41, a plug rod 42, and an elastic element 43. One end of the connecting post 41 is fixed to a corner of the bioaerosol protective net body 2. A slot 31 for inserting the connecting post 41 is provided on the outer side of the slider 3. A receiving groove 32 is provided on the side of the slot 31 away from the ratchet 61. An insertion hole 411 communicating with the receiving groove 32 is provided on one side of the connecting post 41. The plug rod 42 is slidably disposed in the receiving groove 32. The elastic element 43 is disposed in the receiving groove 32 and connected to the plug rod 42. When the elastic element 43 is in its natural state, the plug rod 42 is simultaneously located in the receiving groove 32 and the slot 31. The plug rod 42 is hemispherical when located in the slot 31.

[0046] Furthermore, the end of the insert rod 42 that is inserted into the slot 31 is hemispherical.

[0047] During the installation of the bioaerosol protective netting 2, one end of the connecting post 41 is inserted into the slot 31. The hemispherical end of the connecting post 41 presses against the hemispherical end of the insert rod 42, and the elastic element 43 compresses, causing the insert rod 42 to fully enter the receiving groove 32. When the insertion hole 411 is connected to the receiving groove 32, the elastic force of the elastic element 43 drives the insert rod 42 to reset, so that the hemispherical end of the insert rod 42 is inserted into the insertion hole 411, thereby fixing the connecting post 41 and improving the installation efficiency of the bioaerosol protective netting 2.

[0048] like Figure 3 , Figure 4 and Figure 6 As shown, based on the above embodiments, the present invention provides another specific embodiment as follows:

[0049] The separating component 63 is a miniature drive cylinder, specifically a miniature electric cylinder or a miniature pneumatic cylinder. The separating component 63 is set in the receiving groove 32 and faces the insertion rod 42. The extension and retraction direction of the separating component 63 is consistent with the extension and retraction direction of the elastic component 43. A separating groove 112 is opened on the inner side wall of the sliding groove 11. The ratchet 61 is located in the separating groove 112 and is divided into multiple segments in the vertical direction. Each segment of the ratchet 61 is horizontally slidably set in the separating groove 112. The sliding direction of the ratchet 61 is perpendicular to the extension and retraction direction of the separating component 63. Multiple retaining springs 611 are provided between each segment of the ratchet 61 and the inner wall of the separating groove 112. A separating hole 33 facing the receiving groove 32 is connected between the slot 31 and the separating groove 112. The separating component 63 is used to push the insertion rod 42 through the separating hole 33 and squeeze the ratchet 61 to separate this segment of the ratchet 61 from the pawl 62. An arc-shaped notch 612 is opened at the top of each segment of the ratchet 61 for the hemispherical end of the insertion rod 42 to squeeze.

[0050] Furthermore, when the ratchet 61 is in its initial state, the side of the ratchet 61 facing the opening of the slide groove 11 is coplanar with the axis of the hemispherical end of the insertion rod 42, which can maximize the compression displacement of the ratchet 61. When the separating member 63 drives the hemispherical end of the insertion rod 42 to compress the ratchet 61, the insertion rod 42 remains within the insertion hole 411 to ensure the fixed stability of the connecting post 41.

[0051] Furthermore, in this embodiment, the pawl 62 is located adjacent to the insert rod 42. When the slider 3 moves downward to separate the hemispherical end of the insert rod 42 from a certain section of the ratchet 61, the pawl 62 has already moved downward with the slider 3 out of this section of the ratchet 61 before the retaining spring 611 drives this section of the ratchet 61 to reset. Moreover, when the pawl 62 descends to the lower ratchet 61, the insert rod 42 has already squeezed the lower ratchet 61 completely, so there will be no phenomenon of the pawl 62 re-engaging with a certain section of the ratchet 61 during the descent of the slider 3.

[0052] Alternatively, the retaining spring 611 may be made of a rubber column or other material with a slower rebound speed.

[0053] When slider 3 needs to move downward, the separation component 63 is activated to push the insertion rod 42 toward the ratchet 61. The hemispherical end of the insertion rod 42 passes through the insertion hole 411 and the separation hole 33 in sequence and then squeezes the ratchet 61, causing this section of the ratchet 61 to separate from the pawl 62. The lifting component 5 can then drive slider 3 to descend.

[0054] The multi-segment design of the ratchet 61 improves the effect of the insert rod 42 in squeezing and displacing the ratchet 61 to the preset position. It also avoids excessive pressure on the sliding connection between the ratchet 61 and the slider 3 when the insert rod 42 squeezes the ratchet 61 because the ratchet 61 is too long. It also avoids the phenomenon of the ratchet 61 tilting when it receives pressure.

[0055] When the slider 3 drives the insertion rod 42 to descend to the junction of the two ratchet teeth 61, the hemispherical end of the insertion rod 42 presses against the arc-shaped notch 612 at the top of the lower ratchet tooth 61, causing the lower ratchet tooth 61 to be pressed to the position where it separates from the pawl 62. The lifting assembly 5 does not need to stop during the entire descent of the slider 3, thus improving the descent efficiency of the slider 3.

[0056] Alternatively, in some embodiments, the elastic element 43 may be a spring. Springs are inexpensive and easy to install, making the displacement of the insert rod 42 by the elastic element 43 more effective.

[0057] Alternatively, in some embodiments, the elastic element 43 may also be a hollow rubber column. The hollow rubber column allows for easier deformation and stretching when the separating element 63 pushes the insert rod 42 to compress the ratchet 61, thus extending its service life.

[0058] Based on the above embodiments, the present invention provides another specific embodiment as follows:

[0059] An air curtain is detachably connected to the top of the frame 1 via bolts, shielding one side of the bioaerosol protective net 2. The air curtain provides secondary interception of bioaerosols, further enhancing the bioaerosol interception effect of this device.

[0060] The above are merely preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0061] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0062] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

Claims

1. A protective net for bioaerosols in port container quarantine, characterized in that, The device includes a frame (1) with wheels and a bioaerosol protective net (2) mounted on the frame (1). Two sliders (3) slide on each side of the frame (1). Slide grooves (11) are provided on both sides of the frame (1) for the sliders (3) to rise and fall. Connecting components (4) are provided between the four corners of the bioaerosol protective net (2) and the four sliders (3). The connecting components (4) are used to fix one corner of the bioaerosol protective net (2) to the corresponding slider (3). Lifting components (5) are provided on both sides of the frame (1) for driving each slider (3) to rise and fall independently. Supporting components (6) are provided between the frame (1) and each slider (3) for supporting the slider (3) after it has risen and fallen. The lifting assembly (5) includes a rack (51), a gear (52) and a motor (53). The rack (51) is vertically fixed in the slide groove (11). The motor (53) is mounted on the corresponding slider (3). The gear (52) is coaxially fixed on the output shaft of the motor (53) and meshes with the rack (51). A slide rail (111) is provided at the middle of the bottom wall of the slide groove (11), and the slider (3) slides on the slide rail (111); The support assembly (6) includes a ratchet (61), a pawl (62), and a separator (63). The ratchet (61) is vertically disposed in the slide groove (11), and the pawl (62) is disposed on the slider (3) and engages with the ratchet (61). When the ratchet (61) and the pawl (62) are engaged, the slider (3) cannot slide downward. The separator (63) is used to separate the ratchet (61) from the pawl (62). The connecting assembly (4) includes a connecting post (41), a plug (42), and an elastic element (43). One end of the connecting post (41) is fixed on the bioaerosol protective net body (2). The outer side of the slider (3) is provided with a slot (31) for the connecting post (41) to be inserted. The side of the slot (31) away from the ratchet (61) is provided with a receiving groove (32). The side of the connecting post (41) is provided with a plug hole (411) communicating with the receiving groove (32). The plug (42) is slidably disposed in the receiving groove (32). The elastic element (43) is disposed in the receiving groove (32) and connected to the plug (42). When the elastic element (43) is in its natural state, the plug (42) is simultaneously located in the receiving groove (32) and the slot (31). The plug (42) is hemispherical when located in the slot (31). The separating component (63) is a miniature drive cylinder. The separating component (63) is disposed in the receiving groove (32) and faces the insert rod (42). A separating groove (112) is provided on the inner side wall of the sliding groove (11). The ratchet (61) is located in the separating groove (112) and is divided into multiple segments in the vertical direction. Each segment of the ratchet (61) is horizontally slidably disposed in the separating groove (112). A retaining device is provided between each segment of the ratchet (61) and the inner wall of the separating groove (112). Holding spring (611); the slot (31) and the separation groove (112) are connected by a separation hole (33) facing the receiving groove (32); the separation member (63) is used to push the insertion rod (42) through the separation hole (33) and then squeeze the ratchet (61) so that this section of the ratchet (61) is separated from the pawl (62); the top of each section of the ratchet (61) is provided with an arc-shaped notch (612) for the hemispherical end of the insertion rod (42) to be squeezed.

2. The protective netting for bioaerosols in port container quarantine as described in claim 1, characterized in that, The elastic element (43) is a spring.

3. The protective netting for bioaerosols in port container quarantine as described in claim 1, characterized in that, The elastic element (43) is a hollow rubber column.

4. A protective net for bioaerosols in port container quarantine as described in claim 1, characterized in that, The end of the insert (42) that is inserted into the slot (31) is hemispherical.

5. A protective net for bioaerosols in port container quarantine as described in any one of claims 1-4, characterized in that, An air curtain is provided on one side of the bioaerosol protective net (2) on the frame (1).

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