Bacteriostatic deodorization air pipe based on metal organic framework

Abstract

The invention provides a bacteriostatic and deodorant air duct based on a metal organic framework, and belongs to the field of air ducts, the bacteriostatic and deodorant air duct comprises an air duct body with a rectangular section, one inner wall surface of the air duct body is provided with two mounting grooves which are arranged in parallel, and the air duct body is further internally provided with a filter screen assembly and a replacement assembly used for assisting in replacement of the filter screen assembly. The replacing assembly is provided with two moving parts capable of moving oppositely and a transmission part connected with at least one moving part. Through the two moving parts capable of moving in opposite directions, when a new filter screen assembly is mounted, an old filter screen assembly can be moved out of the mounting groove, so that when an operator replaces the filter screen assembly in the air pipe, the old filter screen assembly can be automatically ejected only by carrying the new filter screen assembly to be inserted into the mounting groove; in the replacement process, only one filter screen assembly can be operated on the hand of an operator at the same time, the replacement process is simplified, and the needed installation time is shortened.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of air duct technology, in particular to a metal-organic framework-based antibacterial and deodorizing air duct. BACKGROUND

[0002] Metal-organic framework compounds are a kind of crystalline porous materials with periodic network structure formed by self-assembly of inorganic metal centers (metal ions or metal clusters) and bridged organic ligands. The composite material has a large number of pores inside, which are like a large number of "rooms" for adsorbents to "move in", greatly improving the adsorption capacity and making it have certain deodorizing and antibacterial effects.

[0003] The existing air duct often has a filter screen for adsorption. The filter screen based on physical adsorption principle is easy to reach saturation state after long-term use and needs to be replaced regularly. The existing technology has two types of fixing methods for the filter screen in the air duct, one is locking piece fixing such as screw and nut, and the other is quick release structure such as clamping and plug-in. No matter which method is used, there are two steps when disassembling the air duct: first, remove the old filter screen; second, take the new filter screen and install it. Since the air duct may be installed at a high position from the ground, the above two-step filter screen replacement technology is affected by the change of air duct height when used to replace the filter screen in the air duct at a high position, which makes the originally simple steps more troublesome to perform and the installation time is also increased.

[0004] Therefore, we propose a metal-organic framework-based antibacterial and deodorizing air duct to solve the above problems. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a metal-organic framework-based antibacterial and deodorizing air duct to solve the problems in the background art.

[0006] The purpose of the present application can be achieved by the following technical scheme: an air duct body with a rectangular cross section, two installation grooves arranged in parallel are formed on one of the inner wall surfaces of the air duct body, a filter screen assembly and a replacement assembly for assisting the replacement of the filter screen assembly are further arranged in the air duct body, the replacement assembly has two movable parts that can move towards each other and a transmission part connected to at least one of the movable parts, when the filter screen assembly is moved into the air duct body from one of the installation grooves, the filter screen assembly in the other installation groove can be moved from the installation groove to the outside of the air duct body under the drive of one of the movable parts, an adsorbent based on metal-organic framework material is arranged in the filter screen assembly, a blocking assembly for blocking the installation groove is further arranged on the side of the air duct body close to the installation groove, and the blocking assembly includes at least one blocking plate.

[0007] As a preferred embodiment of the present application, the filter assembly comprises a sealing frame surrounding the outer side, the adsorbent is located inside the sealing frame, the surface of the sealing frame is provided with gaps for passing gas, and a second holding part is formed on one end surface of the filter assembly for convenient holding.

[0008] As a preferred embodiment of the present application, the moving part is implemented as a rack fixed on the sealing frame, the rack is symmetrically arranged on both sides in the installation direction of the filter assembly, and the transmission part comprises a connecting shaft and a gear fixed on the connecting shaft, the gear comprises a tooth shape that can engage with the rack.

[0009] As a preferred embodiment of the present application, the transmission part is symmetrically arranged on both sides in the installation direction of the filter assembly inside the duct body.

[0010] Further, the replacement assembly further comprises a first guide rail frame installed inside the duct body, the first guide rail frame extends from one side inner wall to the other side inner wall of the duct body in the installation direction of the filter assembly and is symmetrically arranged on both sides in the installation direction thereof, two insertion slot parts are formed on the first guide rail frame, the two ends of the filter assembly are movably arranged in two adjacent insertion slot parts after entering the duct body, recesses are formed on the two symmetrically opposite sides of the insertion slot part, protrusions corresponding to the recesses are formed on the corresponding positions of the filter assembly, a cavity is formed in the first guide rail frame, a long slot is formed on the side wall of the cavity close to the two racks, and the connecting shaft is rotatable between the two side walls of the cavity, so that the tooth shape side of the gear on the connecting shaft is opposite to the long slot.

[0011] As a preferred embodiment of the present application, a sealing gasket for sealing is further arranged between the contact surfaces of the two ends of the first guide rail frame and the inner walls of the duct body, and the sealing gasket is provided with a slot corresponding to the installation slot.

[0012] Optionally, a vertical edge is further formed between the inner walls of the first guide rail frame, and the vertical edge forms a side wall of the cavity.

[0013] In some preferred embodiments of the sealing assembly, the sealing assembly comprises a sealing plate, second guide rail frames are symmetrically arranged on both sides of the side of the duct body close to the installation slot, a slide is formed in the second guide rail frame, and the two ends of the sealing plate are movably arranged in the second guide rail frame through the slide.

[0014] As a preferred embodiment of the present application, a friction pad is arranged in the slide.

[0015] Optionally, a first holding part is formed on the sealing plate.

[0016] In another preferred embodiment of the sealing assembly, the sealing assembly comprises two sealing plate members movable towards each other, second guide rail frames are arranged on both sides of the duct body near the side of the installation groove, a sliding channel is formed in the second guide rail frame, and the two ends of the sealing plate member are movably arranged in the second guide rail frame through the sliding channel.

[0017] As a preferred embodiment of the present application, the connecting member comprises a bidirectional screw rod rotatable in the second guide rail frame, one end of the bidirectional screw rod penetrates through the second guide rail frame, second guide rail frames are arranged on both sides of the duct body near the side of the installation groove, a sliding channel is formed in the second guide rail frame, the two ends of the sealing plate member are movably arranged in the second guide rail frame through the sliding channel, one end of the bidirectional screw rod penetrates through one side of the second guide rail frame and extends to the outside of the second guide rail frame, a first knob is fixedly arranged on the end of the bidirectional screw rod outside the second guide rail frame, the two sides of the outside of the bidirectional screw rod are provided with threads in opposite directions, through holes are respectively formed in the two sealing plate members, and a screw sleeve is fixedly arranged in the through hole, a corresponding thread is arranged in the screw sleeve and matched with the thread of the outside of the bidirectional screw rod, and the two sealing plate members are respectively threadedly connected to the outside of the bidirectional screw rod through the screw sleeve and symmetrically arranged with each other.

[0018] In the second embodiment of the present application:

[0019] The installation groove is arranged on the side of the duct body near the ground.

[0020] As a preferred embodiment of the present application, the replacement assembly further comprises a control member for limiting the active continuous movement of any one of the two moving members in the duct body, the control member comprises a forward ratchet and a reverse ratchet with opposite teeth, a pawl for limiting rotation is arranged on the outer side of the two ratchets, and the forward ratchet and the reverse ratchet are fixedly arranged on the connecting shaft.

[0021] Further, a rotating shaft is arranged in the pawl, one end of the rotating shaft penetrates through one side wall of the adjacent cavity and extends to the outside of the cavity, a second knob is fixedly arranged on the end of the rotating shaft outside the cavity, the second knob has a knob cavity in the inside, a torsion spring is arranged in the knob cavity, and the two ends of the torsion spring are respectively in abutment with the second knob and the outer wall of the adjacent first guide rail frame.

[0022] Further, a positioning member is arranged on the outer side of the second knob, the positioning member is fixedly arranged on the adjacent first guide rail frame, the positioning member comprises a ring with a slot, a limiting portion is formed on the outer circle of the second knob, the second knob can be conveniently controlled by an operator outside the duct body, and a through hole is formed on the outer wall of the duct body at a corresponding position, so as to enable the second knob and the positioning member to be installed and exposed.

[0023] Compared with the prior art, the present application can achieve at least one of the following beneficial effects:

[0024] 1. By the two movable moving parts, the old filter assembly can be moved out of the installation slot when a new filter assembly is installed, so that the operator only needs to carry the new filter assembly into the installation slot to automatically eject the old filter assembly when replacing the filter assembly in the air pipe, thereby realizing the operation of having only one filter assembly in the hand during replacement, simplifying the replacement process and reducing the required installation time.

[0025] 2. By providing the control component that can limit the active continuous movement of either of the two moving parts in the air pipe body, the function of ejecting the old filter assembly by inserting the new filter assembly can be normally achieved when the installation slot is located on the side of the air pipe body close to the ground, and the operation is simple and convenient.

[0026] 3. By further providing the positioning member on the outside of the second knob, the second knob can be rotated to a fixed angle and stopped when needed, so that the pawl on the corresponding shaft can unlock the corresponding ratchet without the operator always needing to keep the limitation on the second knob, further simplifying the replacement steps. BRIEF DESCRIPTION OF DRAWINGS

[0027] In order to facilitate understanding of those skilled in the art, the present application will be further described below with reference to the accompanying drawings.

[0028] Figure 1 is a schematic view of the three-dimensional structure of the present application;

[0029] Figure 2 is a schematic view of part of the three-dimensional structure of the present application;

[0030] Figure 3 is a schematic view of part of the three-dimensional structure of the present application; Figure 2

[0031] Figure 4 is a schematic view of part of the three-dimensional structure of the present application; Figure 3

[0032] Figure 5 is a schematic view of part of the three-dimensional structure of the present application; Figure 4

[0033] Figure 6 is a schematic view of part of the three-dimensional structure of the present application;

[0034] Figure 7 is a schematic view of part of the three-dimensional structure of the present application;

[0035] Figure 8 is a schematic view of another perspective of the three-dimensional structure of the present application;​​​

[0036] Figure 9 is a perspective view showing the filter assembly replacement of the present application;

[0037] Figure 10 is Figure 9 is an enlarged view of part B shown in the figure;

[0038] Figure 11 is an enlarged view of one of the embodiments of the blocking assembly of the present application;

[0039] Figure 12 is Figure 11 is an enlarged view of part C shown in the figure;

[0040] Figure 13 is an enlarged view of one of the embodiments of the blocking assembly of the present application;

[0041] Figure 14 is Figure 13 is an enlarged view of part D shown in the figure.

[0042] In the figure: 1, air pipe body; 2, mounting groove; 3, filter assembly; 4, replacement assembly; 5, moving part; 6, transmission part; 7, sealing frame; 8, adsorbent; 9, rack; 10, connecting shaft; 11, gear; 12, blocking assembly; 13, blocking plate; 14, first guide rail frame; 15, insertion slot part; 16, recess; 17, protrusion; 18, cavity; 19, long slot; 20, sealing gasket; 21, vertical edge; 22, second guide rail frame; 23, slide; 24, first holding part; 25, connecting part; 26, bidirectional screw rod; 27, first knob; 28, control part; 29, forward ratchet; 30, reverse ratchet; 31, pawl; 32, rotating shaft; 33, second knob; 34, positioning part; 35, missing slot; 36, ring; 37, limiting part; 38, knob cavity; 39, torsional spring; 40, second holding part. DETAILED DESCRIPTION

[0043] The technical solutions of the present application will be described clearly and completely below in conjunction with the embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. Based on the embodiments of the present application, all the other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0044] Furthermore, 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 being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the context of this disclosure, "a group" means two or more, unless otherwise specifically defined.

[0045] Throughout this specification, when a device is said to be "connected" to another device, this includes not only "direct connection" but also "indirect connection" with other elements interposed therebetween. Furthermore, when a device is said to "include" a certain component, unless otherwise stated, this does not exclude the inclusion of other components but rather implies that the device may include other components.

[0046] Although the terms first, second, etc. are used in some examples herein to refer to various elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another. For example, a first interface and a second interface, etc. are represented. Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context indicates otherwise.

[0047] Although not defined differently, all terms used herein, including technical and scientific terms, have the same meanings as those generally understood by those skilled in the art to which this disclosure belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with relevant technical literature and the current message. Unless otherwise defined, they should not be overly interpreted as ideal or highly formalized meanings.

[0048] The existing air duct often has a filter screen for adsorption. The filter screen based on physical adsorption is easy to reach saturation state after long-term use and needs to be replaced regularly. The fixing methods of the filter screen in the air duct in the prior art are roughly divided into two categories. One is locking piece fixing, such as screw and nut, etc. The other is quick release structure, such as clamping and plug-in, etc. No matter which way in the above, there are two steps when disassembling the air duct: one is to remove the old filter screen; the other is to take the new filter screen for installation. Since the air duct may be installed at a position higher from the ground, which leads to that after the old filter screen is removed in the above steps, the operator needs to find a suitable position for storage, and the position is probably different in height. When one person operates, the height needs to be increased by an external heightening tool first, the fastener of the old filter screen is disassembled, then the old filter screen is removed, the heightening tool is removed, the old filter screen is placed in a suitable position, the new filter screen is taken, the heightening tool is moved up, the new filter screen is inserted, and the new filter screen is connected with the air duct. As can be seen from the above, due to the existence of the height difference, the replacement of the filter screen in the air duct has an additional step of climbing the heightening tool for the high replacement relative to the ground replacement. Moreover, since the replacement is two operation steps, the operator needs to climb one more time when replacing the filter screen at a high position, which makes the originally simple replacement step more troublesome to perform when applied to the replacement of the filter screen in the air duct at a high position. The installation time is also increased as a whole, and the risk is also increased with one more climbing action.

[0049] In the first embodiment of the present application:

[0050] Please refer to Figures 1-14 The metal organic framework-based bacteriostatic and deodorizing air duct shown in the figure comprises an air duct body 1 with a rectangular cross section, two installation grooves 2 are arranged in parallel on one of the inner wall surfaces of the air duct body 1, and a filter screen assembly 3 and a replacement assembly 4 for assisting the replacement of the filter screen assembly 3 are further arranged in the air duct body 1. The replacement assembly 4 has two movable moving parts 5 that can move towards each other and a transmission part 6 connected with at least one of the moving parts 5. When the filter screen assembly 3 is moved into the air duct body 1 from one of the installation grooves 2, the filter screen assembly 3 in the other installation groove 2 can be moved out of the installation groove 2 and to the outside of the air duct body 1 under the drive of one of the moving parts 5. An adsorbent 8 based on metal organic framework material is arranged in the filter screen assembly 3. A blocking assembly 12 for blocking the installation groove 2 is further arranged on the side of the air duct body 1 close to the installation groove 2. The blocking assembly 12 comprises at least one blocking plate 13.

[0051] Please refer to Figures 8-10 Preferably, the filter screen assembly 3 comprises a sealing frame 7 around the outer side, the adsorbent 8 is located in the inside of the sealing frame 7, and the surface of the sealing frame 7 is provided with gaps for gas to pass through. Optionally, a second holding part 40 for convenient holding is formed on one end surface of the filter screen assembly 3.

[0052] As shown in Figure 4 and Figure 5 Preferably, the moving part 5 is implemented as a rack 9 fixed on the sealing frame 7, the rack 9 is symmetrically arranged on both sides of the installation direction of the filter screen assembly 3, the transmission part 6 includes a connecting shaft 10 and a gear 11 fixed on the connecting shaft 10, the gear 11 includes a tooth shape that can be engaged with the rack 9.

[0053] Preferably, the transmission part 6 is symmetrically arranged on both sides of the installation direction of the filter screen assembly 3 in the duct body 1, of course, the transmission part 6 can also be arranged only on one side of the duct body 1, the stability of both sides is relatively better than that of one side, and the force of the transmission part 6 is more uniform.

[0054] As can be understood by those skilled in the art, when a new filter screen assembly 3 is inserted into the duct body 1 from an installation slot 2 to a certain depth, the rack 9 on the new filter screen assembly 3 will begin to engage with the gear 11 nearby, the gear 11 will rotate as the rack 9 on the new filter screen assembly 3 is inserted to a greater depth, and the gear 11 will drive the old filter screen assembly 3 to move out of the duct body 1 from the installation slot 2 near one side of the duct body 1 when the gear 11 rotates by engaging with the rack 9 on the old filter screen assembly 3. Thus, the steps for replacing the filter screen assembly 3 in the duct body 1 can be changed from two steps to one step, that is, the operator only needs to insert a new filter screen to make the old filter screen move out of the duct body 1. This undoubtedly simplifies the replacement method of the filter screen in the duct body 1 and improves the replacement speed.

[0055] As shown in Figures 2-4 Further, the replacement assembly 4 further includes a first guide rail frame 14 installed in the duct body 1, the first guide rail frame 14 extends from one side inner wall to the other side inner wall of the duct body 1 in the installation direction of the filter screen assembly 3 and is symmetrically arranged on both sides of the installation direction. Two insertion slot parts 15 are formed on the first guide rail frame 14, after the filter screen assembly 3 enters the duct body 1, the two ends of the filter screen assembly 3 are movably arranged in the two adjacent insertion slot parts 15, respectively, recesses 16 are formed on the two symmetrically opposite sides of the insertion slot part 15, protrusions 17 corresponding to the recesses 16 are formed on the corresponding positions of the filter screen assembly 3, and the recesses 16 and the protrusions 17 are matched to avoid the filter screen assembly 3 from translating in the insertion slot part 15 along the direction perpendicular to the installation direction. A cavity 18 is formed in the first guide rail frame 14, a long slot 19 is formed on the side wall of the cavity 18 close to the two racks 9, the connecting shaft 10 rotates between the two side walls of the cavity 18, so that the tooth shape side of the gear 11 on the connecting shaft 10 is opposite to the long slot 19, and when the filter screen assembly 3 moves into the duct body 1 from the installation slot 2, the rack 9 on the filter screen assembly 3 will partially penetrate the long slot 19 and finally engage with the gear 11.

[0056] Preferably, a sealing gasket 20 is arranged between the two ends of the first guide rail frame 14 and the inner wall of the air duct body 1, and the sealing gasket 20 is provided with a slot corresponding to the installation slot 2, so that the filter screen assembly 3 can pass through the slot smoothly.

[0057] Alternatively, a vertical edge 21 is formed between the inner walls of the first guide rail frame 14, and the vertical edge 21 forms a side wall of the cavity 18. Since the long slot 19 weakens the stability of the first guide rail frame 14, the vertical edge 21 compensates for the stability of one side of the first guide rail frame 14.

[0058] As can be understood by those skilled in the art, when the filter screen assembly 3 is inserted into the air duct body 1, the filter screen assembly 3 enters the air duct body 1 through the installation slot 2 and the slot on the sealing gasket 20, and during the moving-in process, the two ends of the filter screen assembly 3 move into the corresponding insertion slot part 15, respectively, and are positioned by the cooperation of the recess 16 and the protrusion 17, and the rack 9 on the filter screen assembly 3 enters the long slot 19 and finally engages with the gear 11 in the cavity 18.

[0059] As shown in Figs. 4 and 5, Figure 11 and Figure 12 Preferably, in some embodiments of the blocking assembly 12, the blocking assembly 12 comprises a blocking plate 13, and a second guide rail frame 22 is arranged on each of the two sides of the air duct body 1 near the installation slot 2, and a slide 23 is formed in the second guide rail frame 22, and the two ends of the blocking plate 13 are movably arranged in the second guide rail frame 22 through the slide 23.

[0060] Preferably, a friction pad is arranged in the slide 23, which reduces the gap between the slide 23 and the blocking plate 13, increases the friction required for the movement of the blocking plate 13, and makes the resistance of the blocking plate 13 during movement larger, so that the blocking plate 13 can be easily kept stationary in a stop area and is difficult to move at will. It should be noted that the area of the side of the blocking plate 13 close to the installation slot 2 should be larger than the cross-sectional area of the installation slot 2, and should be larger than the maximum length and the maximum width of the installation slot 2 in the length and width directions, so that the blocking plate 13 can completely block the installation slot 2 when covering the installation slot 2. In addition, the length of the second guide rail frame 22 should satisfy that when the blocking plate 13 slides to the middle or the two ends of the slide 23, the blocking plate 13 does not overlap with any installation slot 2.

[0061] Alternatively, a first holding part 24 is formed on the blocking plate 13, and the first holding part 24 can facilitate the operator to push the blocking plate 13 to move along the slide 23 in the second guide rail frame 22.

[0062] It can be understood by those skilled in the art that by pushing the sealing plate 13 to move, its two ends are guided in the second guide rail frame 22, and it moves along the direction of the slide 23 to a position where it needs to cover and block an installation slot 2 to achieve sealing of the installation slot 2 and avoid air leakage, or it can be moved along the direction of the slide 23 to a position that does not block the installation slot 2 at all, so as to achieve opening of the installation slot 2, facilitate the entry and exit of the filter assembly 3 in the two installation slots 2, and facilitate the replacement process.

[0063] See also Figure 13 and Figure 14 As shown, in some other embodiments of the blocking assembly 12, preferably, the blocking assembly 12 includes two blocking plates 13 that can move toward each other, and second guide rail frames 22 are provided on both sides symmetrically on one side of the air duct body 1 close to the mounting groove 2, and a slide 23 is formed in the second guide rail frame 22. The two ends of the blocking plate 13 are movably arranged in the second guide rail frame 22 through the slide 23, and a connecting component 25 for moving the two blocking plates 13 toward each other is provided in the slide 23.

[0064] Preferably, the connecting component 25 includes a bidirectional screw rod 26 that can be rotated in the second guide rail frame 22, one end of the bidirectional screw rod 26 is passed through, and a second guide rail frame 22 is provided on both sides symmetrically on one side of the air duct body 1 close to the installation groove 2, a slide 23 is formed in the second guide rail frame 22, and the two ends of the blocking plate 13 are movably arranged in the second guide rail frame 22 through the slide 23, respectively. A second guide rail frame 22 is provided on both sides symmetrically on one side of the air duct body 1 close to the installation groove 2, a slide 23 is formed in the second guide rail frame 22, and the two ends of the blocking plate 13 are movably arranged in the second guide rail frame 22 through one side of the second guide rail frame 22 and extend to the outside thereof, and the bidirectional screw rod 26 is located on the second guide rail A first knob 27 is fixedly provided at one end of the outside of the frame 22, and threads of opposite rotation directions are respectively provided on both sides of the outside of the bidirectional screw rod 26. A through hole is respectively opened on the two sealing plates 13, and a screw sleeve is fixed in the through hole. The screw sleeve is provided with a corresponding thread adapted to a section of the thread on the outside of the bidirectional screw rod 26. The two sealing plates 13 are respectively threadedly connected to the outside of the bidirectional screw rod 26 through the screw sleeve, and are symmetrical to each other. The cross-sectional area of ​​a side of the sealing plate 13 facing the mounting groove 2 should meet the following requirements: when the adjacent walls on the two sealing plates 13 fit together, the two sealing plates 13 should be able to completely block and seal the two mounting grooves 2, and when the two sealing plates 13 are completely moved to the farthest end of the distance between each other, the two mounting grooves 2 are completely exposed and unobstructed.

[0065] The operator can rotate the first knob 27 on the outside to drive the bidirectional screw rod 26 in the slide 23 to rotate, and the bidirectional screw rod 26 is in mesh with the screw sleeves on the two blocking plate members 13, and the blocking plate members 13 cannot rotate with the bidirectional screw rod 26 due to the restriction of the slide 23, so the blocking plate members 13 move forward along the threads under the driving of the screw sleeves, realizing the opposite movement of the two blocking plate members 13 and the synchronous opening and sealing of the two installation grooves 2.

[0066] In the second embodiment of the present application:

[0067] All the technical features in the first embodiment are included, and it is further limited that the installation groove 2 is located on one side of the air pipe body 1 close to the ground, that is, the filter screen assembly 3 needs to be inserted or taken out from the air pipe body 1 directly below. Due to the installation groove 2 being located directly below, the filter screen assembly 3 is affected by gravity, and when only one filter screen assembly 3 is arranged in one of the installation grooves 2, if the operator opens the blocking plate member 13 below to make the blocking plate member 13 no longer block the installation groove 2, the filter screen assembly 3 will directly fall under the action of gravity without inserting another filter screen assembly 3, and the old filter screen assembly 3 can be taken out, and at this time, the limitation of the replacement assembly 4 on the filter screen assembly 3 is completely invalid, which will lead to the replacement step of the air pipe body 1 at this time being no different from the conventional replacement step.

[0068] A common setting is to increase the friction between the two end faces of the filter screen assembly 3 and the two insertion slot parts 15 formed on the first guide rail frame 14, so that the maximum gravity suffered by the filter screen assembly 3 is less than the maximum static friction between the two, which can indeed prevent the direct falling of the filter screen assembly 3 when the blocking plate member 13 is opened, but due to the increase of the friction, the operator needs to exert more force to continuously push the filter screen assembly 3 into the installation groove 2 when inserting a new filter screen assembly 3, which makes the installation more laborious,

[0069] Please refer to Figures 5-7 As shown in the figure, preferably, the replacement assembly 4 is further provided with a control member 28 for limiting the active continuous movement of any one of the two moving parts 5 in the air pipe body 1, the control member 28 includes a forward ratchet 29 and a reverse ratchet 30 with opposite teeth, and a limiting rotation pawl 31 is arranged on the outside of both, and the forward ratchet 29 and the reverse ratchet 30 are both fixed on the connecting shaft 10, and by arranging two groups of ratchet and pawl structures with opposite teeth on the same shaft, the rotation of the connecting shaft 10 in two directions can be limited.

[0070] Further, the pawl 31 is provided with a rotating shaft 32, one end of the rotating shaft 32 penetrates one side wall of the adjacent cavity 18 and extends to the outside, the other end of the rotating shaft 32 is fixed with a second knob 33, the second knob 33 is provided with a knob cavity 38, the knob cavity 38 is provided with a torsion spring 39, the two ends of the torsion spring 39 are respectively in contact with the second knob 33 and the outer wall of the adjacent first guide rail frame 14, the torsion spring 39 is used to ensure that the pawl 31 can be pushed away by the ratchet wheel from the corresponding direction when it is not disturbed by human factors, and the pawl 31 can be tightly attached to the ratchet wheel after being pushed away, so as to ensure that the pawl 31 can block the ratchet wheel by clamping the teeth of the ratchet wheel when the ratchet wheel rotates in the direction not allowed by the pawl 31.

[0071] Further, the outer side of the second knob 33 is provided with a positioning member 34, the positioning member 34 is fixed on the adjacent first guide rail frame 14, the positioning member 34 includes a ring 36 with a slot 35, the second knob 33 is formed with a limiting part 37, the second knob 33 can be conveniently operated by the operator to control the pawl 31 outside the air pipe body 1, the air pipe body 1 is formed with a through hole at the corresponding position of the outer wall, which is used for installing and exposing the second knob 33 and the positioning member 34, the through hole of this part is completely sealed by the first guide rail frame 14 and the sealing gasket 20 towards the space in the air pipe body 1, so that the airflow in the air pipe body 1 will not leak from this place.

[0072] As can be understood by those skilled in the art, when it is necessary to insert a new filter screen assembly 3 into one of the installation grooves 2, the blocking plate 13 is first removed from the outside of the two installation grooves 2, and then the appropriate second knob 33 is rotated according to the position of the installation groove 2 to be inserted, so that the second knob 33 drives the corresponding pawl 31 away from the ratchet wheel, and then when the limiting part 37 on the second knob 33 passes through the slot 35 and is clamped into the ring 36, the second knob 33 will not be reset under the elastic force of the torsion spring 39 in it due to the mutual friction force between the limiting part 37 and the inner wall of the ring 36, at this time the connecting shaft 10 can be rotated in a direction with the gear 11.

[0073] Next, the operator will insert the new filter assembly 3 from the empty installation slot 2, when the rack 9 on the new filter assembly 3 begins to engage with the adjacent gear 11, the gear 11 will rotate as the rack 9 on the new filter assembly 3 is inserted deeper, at the same time the gear 11 will drive the connecting shaft 10 to rotate in a direction, the two pairs of ratchets on the connecting shaft 10, one of which is originally used to limit the rotation of the connecting shaft 10 in this particular direction, the outside of the ratchet is no longer blocked by the corresponding pawl 31, and the other ratchet is not blocked by the direction of the teeth itself, so at this time the connecting shaft 10 can rotate normally, with the rotation of the connecting shaft 10, the ratchet that does not block its current rotation direction will follow the rotation and push the outside of the pawl 31 away, then the pawl 31 will reset under the elastic force of the torsion spring 39, and on the outside of the corresponding shaft 32 of the pawl 31, the second knob 33 will constantly swing in the positioning piece 34, the limiting part 37 on the positioning piece 34 will always not be separated from the missing slot 35 during the swinging process, that is, it will not be in contact with the ring 36.

[0074] After the new filter assembly 3 is completely inserted into the empty installation slot 2, the other old filter assembly 3 will also be removed from the corresponding installation slot 2, at this time the second knob 33 can be rotated in the opposite direction to make the limiting part 37 on it disengage from the corresponding ring 36.

[0075] The preferred embodiments of the above disclosed application are only used to help explain the application. The preferred embodiments do not describe all the details, nor limit the application to the specific embodiments. Obviously, according to the content of the specification, many modifications and changes can be made. The specification selects and describes these embodiments in order to better explain the principles and practical applications of the application, so that those skilled in the art can well understand and utilize the application. The application is limited only by the claims and their full scope and equivalents.

Claims

1. A metal organic framework-based antibacterial and deodorizing air duct, comprising an air duct body (1) having a rectangular cross-section, characterized in that: Two parallel mounting grooves (2) are provided on one inner wall surface of the air duct body (1). A filter assembly (3) and a replacement assembly (4) for assisting in replacing the filter assembly (3) are also provided in the air duct body (1). The replacement assembly (4) has two moving parts (5) that can move toward each other and a transmission component (6) connected to at least one of the moving parts (5). When the filter assembly (3) is moved from one of the mounting grooves (2) into the air duct body (1), the filter assembly (3) in the other mounting groove (2) can be driven by one of the moving parts (5) to move from the mounting groove (2) to the outside of the air duct body (1). An adsorbent (8) based on a metal organic framework material is provided in the filter assembly (3). A sealing assembly (12) for sealing the mounting groove (2) is also provided on a side of the air duct body (1) close to the mounting groove (2). The sealing assembly (12) includes at least one sealing plate (13).

2. The antibacterial and deodorizing air duct based on metal organic framework according to claim 1 is characterized in that: The mounting groove (2) is located on a side of the air duct body (1) close to the ground. The replacement assembly (4) is further provided with a control component (28) that can limit the active continuous movement of either of the two moving parts (5) in the air duct body (1). The control component (28) includes a forward ratchet (29) and a reverse ratchet (30) with opposite tooth shapes. A pawl (31) for limiting rotation is provided on the outer side of both ratchet wheels. The forward ratchet (29) and the reverse ratchet (30) are both fixed on the connecting shaft (10).

3. The antibacterial and deodorizing air duct based on metal organic framework according to claim 2, characterized in that: The control component (28) further includes a rotating shaft (32) disposed in the pawl (31), one end of the rotating shaft (32) passing through a side wall of the adjacent cavity (18) and extending to the outside thereof, a second knob (33) is fixed to the end of the rotating shaft (32) located outside the cavity (18), a knob cavity (38) is provided inside the second knob (33), a torsion spring (39) is provided in the knob cavity (38), and two ends of the torsion spring (39) respectively abut against the second knob (33) and the outer wall of the adjacent first guide rail frame (14).

4. The antibacterial and deodorizing air duct based on metal organic framework according to claim 3 is characterized in that: A positioning member (34) is further provided on the outer side of the second knob (33), the positioning member (34) being fixed on the adjacent first guide rail frame (14), the positioning member (34) comprising a ring (36) with a notch (35), a limiting portion (37) being formed on the outer circumference of the second knob (33), the limiting portion (37) being able to abut against the inner wall of the ring (36) when rotating with the second knob (33).

5. The antibacterial and deodorizing air duct based on a metal organic framework according to any one of claims 1 to 4, characterized in that: The replacement assembly (4) further includes a first guide rail frame (14) installed in the air duct body (1). The first guide rail frame (14) extends from one inner wall of the air duct body (1) to the other inner wall in the installation direction of the filter assembly (3). Two slot portions (15) are formed on the first guide rail frame (14). After the filter assembly (3) enters the air duct body (1), its two ends respectively move in the two adjacent slot portions (15).

6. The antibacterial and deodorizing air duct based on metal organic framework according to claim 5, characterized in that: The moving part (5) is a rack (9) fixed on the sealing frame (7). The rack (9) is symmetrically arranged on both sides of the installation direction of the filter assembly (3). The transmission component (6) includes a connecting shaft (10) and a gear (11) fixed on the connecting shaft (10). The gear (11) includes a tooth shape that can mesh with the rack (9). A cavity (18) is formed in the first guide rail frame (14). Long grooves (19) are opened on the side walls of the cavity (18) close to the racks (9) on both sides. The long grooves (19) are used to allow the racks (9) to pass through. The connecting shaft (10) rotates between the two side walls of the cavity (18).

7. The antibacterial and deodorizing air duct based on metal organic framework according to claim 5, characterized in that: A sealing gasket (20) for sealing is provided between the two ends of the first guide rail frame (14) and the contact surface of the inner wall of the air duct body (1), and a groove corresponding to the installation groove (2) is provided on the sealing gasket (20).

8. The antibacterial and deodorizing air duct based on metal organic framework according to claim 6, characterized in that: A vertical side (21) is formed between the inner walls of the first guide rail frame (14), and the vertical side (21) forms a side wall of the cavity (18).

9. The antibacterial and deodorizing air duct based on a metal organic framework according to any one of claims 1 to 4, characterized in that: The blocking assembly (12) includes a blocking plate (13). Second guide rails (22) are symmetrically arranged on both sides of the air duct body (1) near the mounting groove (2). A slideway (23) is formed in the second guide rail (22). Both ends of the blocking plate (13) are movably arranged in the second guide rail (22) through the slideway (23).

10. The antibacterial and deodorizing air duct based on a metal organic framework according to any one of claims 1 to 4, characterized in that: The blocking assembly (12) includes two blocking plates (13) that can move toward each other. A second guide rail frame (22) is provided on both sides of the air duct body (1) symmetrically close to the installation groove (2). A slideway (23) is formed in the second guide rail frame (22). The two ends of the blocking plate (13) are movably arranged in the second guide rail frame (22) through the slideway (23). A connecting component (25) for moving the two blocking plates (13) toward each other is provided in the slideway (23).

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