Air purification device for goods elevator

By setting up a multi-layer filter structure and exhaust circulation system on the top and back of the freight elevator car, the problems of poor purification effect and affected flowability in the freight elevator air purification device are solved, and efficient air purification and automatic cleaning effects are achieved.

CN120332862AInactive Publication Date: 2025-07-18SUZHOU SAIL INTELLIGENT ELEVATOR
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Patent Information

Application Number
CN202510494652.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-21
Publication Date
2025-07-18
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

The existing freight elevator air purification device adopts a single filtering method, resulting in poor purification effect and affects air circulation after the filter is blocked by dust.

Method used

There are air intakes at both corners near the front of the top of the freight elevator car, and an air intake frame with rubber frame is installed, and a conical intercepting structure, filter plate and odor adsorption components are installed inside it, combining activated carbon filtration; an exhaust port is installed at the corner near the bottom of the back, and air circulation is formed through the exhaust fan and the connecting pipe, realizing multi-layer filtration and automatic cleaning.

Benefits of technology

The air purification effect in the freight elevator car is improved, air circulation is ensured, and the conical intercept structure is automatically cleaned, maintaining the flowability of the purified air and reducing the influence of dust and odor.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention provides an air purification device for a goods elevator. The air purification device for the goods elevator comprises a goods elevator car and a door body, the two air inlets are formed in the two corners, close to the front face, of the top of the goods elevator car correspondingly, circulation discs are installed in the two air inlets correspondingly, air inlet frames are installed at the positions, close to the two corners of the front face, of the top of the goods elevator car correspondingly, and rubber frames are installed in the air inlet frames. And extraction openings are formed in the back faces of the two air inlet frames, mounting frames are mounted in the extraction openings, and packing discs are mounted at the bottoms of the inner walls of the mounting frames. According to the air purification device for the cargo elevator, through the design, the air purification effect in the cargo elevator car can be improved, meanwhile, the first-layer conical interception structure can be automatically cleaned, the air circulation performance is ensured, purified air circulates from top to bottom, and the air purification effect is improved. And the first purified air is maintained at the position above the displacement in the cargo lift car.
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Description

Technical Field

[0001] The present invention relates to the technical field of air purification for freight elevators, and particularly to an air purification device for freight elevators. Background Art

[0002] A freight elevator is a lifting device used for transporting goods, mainly used to solve the problem of transporting goods in the vertical direction, and is widely used in industries such as commerce, warehousing, and logistics. The freight elevator is mainly widely used in industries such as commerce, warehousing, and logistics. The freight elevator is driven by electromechanical equipment and can transport goods from one floor to another, greatly improving the logistics efficiency and reducing the labor cost.

[0003] The car of the freight elevator is installed in the elevator shaft and is driven by a power structure to drive the car of the freight elevator to move up and down. The dust inside the elevator shaft will be lifted as the car of the freight elevator moves up and down and enters the car through the air inlet of the car. In order to avoid a large amount of dust inside the car of the freight elevator, it is necessary to purify the air entering the car of the freight elevator.

[0004] Most of the existing air purification devices for freight elevators simply filter through a filter screen. The filtering method is single, which will affect the air purification and filtering effect. Moreover, if the filter screen is not cleaned in time after being blocked by dust, it will affect the air circulation.

[0005] Therefore, it is necessary to provide an air purification device for freight elevators to solve the above technical problems. Summary of the Invention

[0006] The present invention provides an air purification device for freight elevators, which solves the problems that the purification and filtering effect of the air in the car of the freight elevator by using a single filter screen is poor and the air circulation will be affected if the filter screen is not cleaned in time after being blocked by dust.

[0007] To solve the above technical problems, the air purification device for freight elevators provided by the present invention includes: a car of the freight elevator;

[0008] Two air inlets, the two air inlets are respectively opened at two corners of the top of the freight elevator car body close to the front, flow-through discs are installed inside both of the two air inlets, air inlet frames are installed at positions of the top of the freight elevator car body close to the two front corners, rubber frames are installed inside the air inlet frames, extraction openings are opened at the backs of both of the two air inlet frames, mounting frames are installed inside the extraction openings, a packing disc is installed at the bottom of the inner wall of the mounting frame, two support rings are arranged on the inner surface of the mounting frame, a sealing plate is fixedly connected to the back of the mounting frame, a filter disc and an odor adsorption component are sequentially installed inside the mounting frame from top to bottom, a conical intercepting structure is installed on the inner surface of the rubber frame, a dust discharge pipe is fixedly connected to the bottom end of the conical intercepting structure, an intercepting assembly is installed at the top of the air inlet frame, an air extraction assembly for providing suction is installed at the top of the freight elevator car body, a dust storage assembly for intercepting dust is installed at the back of the air extraction assembly, and two connecting pipes are installed at the front of the dust storage assembly through a second three-way joint;

[0009] Two air outlets, the two air outlets are respectively opened at two corners of the back of the freight elevator car body close to the bottom, intercepting components are installed inside both of the two air outlets, air outlet frames are installed at the two corners of the back of the freight elevator car body close to the bottom, an exhaust fan is installed at the bottom of the freight elevator car body, an inlet of the exhaust fan is installed with a first three-way joint through a fixed pipe, and suction pipes are installed at the two inlets of the first three-way joint;

[0010] Activated carbon is filled between the packing disc and the odor adsorption component. The odor adsorption component can filter and adsorb odors. The filter disc is a refined filter screen. The filter disc and the odor adsorption component are respectively in contact with the tops of the two support rings. The structures inside the air inlet frame allow air to circulate normally. The other ends of the two connecting pipes are respectively connected to the other ends of the two dust discharge pipes. One-way valves are arranged between the connecting pipes and the dust discharge pipes to prevent dust from flowing back from the dust storage assembly into the conical intercepting structure. The intercepting component is used to block sundries inside the freight elevator car body from entering the air outlet frame, and the other ends of the suction pipes are connected to the bottoms of the air outlet frames.

[0011] Preferably, the intercepting assembly includes a fixing ring, a protection disc, a through hole and an intercepting ring. The fixing ring is used to install the intercepting ring with a through hole opened on the outer surface, and the protection disc is used to seal the top of the intercepting ring;

[0012] The intercepting ring prevents sundries from entering the air inlet frame. The size of the through hole is determined according to requirements, and only needs to allow air to circulate normally.

[0013] Preferably, the dust storage assembly includes a filter box, an intercepting net and an inlet pipe. The intercepting net is installed inside the filter box to intercept dust, and the inlet pipe is used to connect to the second three-way joint;

[0014] The interception net can intercept the dust sucked out from the conical interception structure in the filter box.

[0015] Preferably, the air extraction assembly includes a fixed shell, an exhaust pipe, and an air extraction component. The fixed shell is used to install the air extraction component that provides suction force.

[0016] The other end of the exhaust pipe can extend to the position at the bottom of the freight elevator car.

[0017] Preferably, a buffer assembly is installed at the bottom of the freight elevator car. The buffer assembly includes a fixed buckle, an arc-shaped elastic structure, a buffer spring, a fixed disk, and a contact plate. The fixed buckle is used to fix the arc-shaped elastic structure at the bottom of the freight elevator car, and the fixed disk is used to fix the buffer spring between the arc-shaped elastic structure and the freight elevator car.

[0018] The contact plate is fixed to the bottom of the two arc-shaped elastic structures by bolts.

[0019] Preferably, a plurality of mounting bases are installed on both sides of the freight elevator car, and a plurality of limiting rods are installed on both sides of the freight elevator car through limiting buckles.

[0020] The limiting rod and the limiting buckle are slidably connected, and the top and bottom of the limiting rod are respectively connected to the top and bottom of the freight elevator shaft.

[0021] Preferably, a plurality of mounting buckles are installed at the bottom of the circulation disk. A bayonet is provided at the top of the circulation disk, and a plurality of air inlet holes are provided at the bottom of the inner wall of the circulation disk.

[0022] The mounting buckle is used to install the circulation disk inside the air inlet.

[0023] Preferably, a sealing disk is installed inside the bayonet, and an opening is provided at the top of the sealing disk.

[0024] Preferably, an aromatherapy frame with a threaded cover is installed at a position near one side of the bottom of the inner wall of the circulation disk. A plurality of volatilization rods are installed on one side of the aromatherapy frame through a sealing plug.

[0025] One end of the volatilization rod passes through the sealing plug and is inserted into the inside of the aromatherapy frame, and the sealing plug increases the sealing performance of the connection.

[0026] Preferably, a limiting frame is installed at a position near the other side of the bottom of the inner wall of the circulation disk. A plurality of docking rings are installed on one side of the limiting frame.

[0027] The docking ring is connected to the other end of the volatilization rod.

[0028] Compared with the related art, the air purification device for a freight elevator provided by the present invention has the following beneficial effects:

[0029] The present invention provides an air purification device for a freight elevator. In order to enhance the air purification effect in the freight elevator, an air inlet is opened at each of the two corners near the front on the top of the freight elevator car. Then, two air inlet frames with rubber frames are installed on the top of the freight elevator car. A conical interception structure is installed on the inner surface of the rubber frame, which can filter the air entering the air inlet frame for the first time. At the same time, an installation frame with a support ring is installed inside the air inlet frame from the extraction port. Odor adsorption components and filter discs are respectively installed on the support rings inside the installation frame. Activated carbon is filled between the odor adsorption components and the packing disc to enhance the filtering effect on dust and odor. At the same time, exhaust ports are opened at each of the two corners near the bottom on the back of the freight elevator car. At the same time, the exhaust ports are blocked by an interception component to prevent foreign objects from entering. At the same time, the inlet of the exhaust fan is connected through a fixed pipe, a first three-way joint, an air suction pipe, and an exhaust frame. The air inside the freight elevator car can be discharged by the suction force provided by the exhaust fan. Through this design, the air purification effect inside the freight elevator car can be enhanced, and the first conical interception structure can be automatically cleaned to ensure air circulation. The purified air circulates from top to bottom, so that the position above the freight elevator car always maintains the air that was first purified. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 Schematic diagram of the structure of the first embodiment of the air purification device for a freight elevator provided by the present invention;

[0031] Figure 2 Schematic diagram of the structure of the exhaust frame provided by the present invention;

[0032] Figure 3 Schematic diagram of the structure of the odor adsorption component provided by the present invention;

[0033] Figure 4 Provided by the present invention Figure 1 Enlarged view of the part marked as A shown in the present invention;

[0034] Figure 5 Provided by the present invention Figure 3 Enlarged view of the part marked as B shown in the present invention;

[0035] Figure 6 Schematic diagram of the structure of the air extraction component provided by the present invention;

[0036] Figure 7 Schematic diagram of the structure of the second embodiment of the air purification device for a freight elevator provided by the present invention;

[0037] Figure 8 Schematic diagram of the structure of the aromatherapy frame provided by the present invention.

[0038] Reference numerals in the figure: 1, freight elevator car; 2, air intake frame; 3, interception component, 301, fixing ring; 302, protection plate; 303, through hole; 304, interception ring; 4, ash storage component, 401, filter box; 402, interception net; 403, inlet pipe; 5, air extraction component, 501, fixing shell; 502, exhaust pipe; 503, air extraction part; 504, installation pipe; 6, limiting rod; 7, limiting buckle; 8, fixing base; 9, buffer component, 901, fixing buckle; 902, arc elastic structure; 903, buffer spring; 904, fixing plate; 905, contact plate; 10, exhaust frame; 11, first three-way joint; 12, suction pipe; 13, dust exhaust pipe; 14, sealing plate; 15, connecting pipe; 16, second three-way joint; 17, exhaust port; 18, exhaust fan; 19, filter disc; 20, fixing pipe; 21, interception part; 22, odor adsorption part; 23, installation frame; 24, conical interception structure; 25, rubber frame; 26, air inlet; 27, extraction port; 28, support ring; 29, packing disc; 30, docking ring; 31, circulation disc; 32, opening; 33, sealing disc; 34, installation buckle; 35, air inlet hole; 36, bayonet; 37, threaded cover; 38, aromatherapy frame; 39, sealing plug; 40, volatilization rod; 41, limiting frame. Detailed implementation mode

[0039] The present invention will be further described below in conjunction with the accompanying drawings and implementation modes.

[0040] Please refer to Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 , wherein, Figure 1 is a schematic structural diagram of the first embodiment of the air purification device for a freight elevator provided by the present invention; Figure 2 is a schematic structural diagram of the exhaust frame provided by the present invention; Figure 3 is a schematic structural diagram of the odor adsorption part provided by the present invention; Figure 4 is provided by the present invention Figure 1 an enlarged view of the place A shown in; Figure 5 is provided by the present invention Figure 3 an enlarged view of the place B shown in; Figure 6 is a schematic structural diagram of the air extraction part provided by the present invention. The air purification device for a freight elevator includes: a freight elevator car 1;

[0041] Two air inlets 26, the two air inlets 26 are respectively opened at two corners of the top of the freight elevator car 1 close to the front. Flow plates 31 are installed inside both of the two air inlets 26. Air inlet frames 2 are installed at positions of the top of the freight elevator car 1 close to two corners of the front. A rubber frame 25 is installed inside the air inlet frame 2. Extraction ports 27 are opened on the back of both of the two air inlet frames 2. An installation frame 23 is installed inside the extraction port 27. A packing plate 29 is installed at the bottom of the inner wall of the installation frame 23. Two support rings 28 are arranged on the inner surface of the installation frame 23. A sealing plate 14 is fixedly connected to the back of the installation frame 23. A filter plate 19 and an odor adsorption component 22 are installed inside the installation frame 23 in sequence from top to bottom. A conical interception structure 24 is installed on the inner surface of the rubber frame 25. A dust discharge pipe 13 is fixedly connected to the bottom end of the conical interception structure 24. An interception assembly 3 is installed at the top of the air inlet frame 2. An air extraction assembly 5 providing suction is installed at the top of the freight elevator car 1. A dust storage assembly 4 intercepting dust is installed on the back of the air extraction assembly 5. Two connecting pipes 15 are installed on the front of the dust storage assembly 4 through a second three-way joint 16;

[0042] Two exhaust ports 17, the two exhaust ports 17 are respectively opened at two corners of the back of the freight elevator car 1 close to the bottom. Interception components 21 are installed inside both of the two exhaust ports 17. Exhaust frames 10 are installed at positions of the back of the freight elevator car 1 close to two corners of the bottom. An exhaust fan 18 is installed at the bottom of the freight elevator car 1. The inlet of the exhaust fan 18 is installed with a first three-way joint 11 through a fixed pipe 20. Suction pipes 12 are installed at both inlets of the first three-way joint 11;

[0043] Activated carbon is filled between the packing plate 29 and the odor adsorption component 22. The odor adsorption component 22 can filter and adsorb odors. The filter plate 19 is a refined filter screen. The filter plate 19 and the odor adsorption component 22 are respectively in contact with the tops of the two support rings 28. The structures inside the air inlet frame 2 allow air to circulate normally. The other ends of the two connecting pipes 15 are respectively connected to the other ends of the two dust discharge pipes 13. A one-way valve is arranged between the connecting pipe 15 and the dust discharge pipe 13 to prevent dust from flowing back from the dust storage assembly 4 into the inside of the conical interception structure 24. The interception component 21 is used to block sundries inside the freight elevator car 1 from entering the inside of the exhaust frame 10. The other end of the suction pipe 12 is connected to the bottom of the exhaust frame 10. The exhaust frame 10 corresponds to the position of the exhaust port 17.

[0044] The interception assembly 3 includes a fixed ring 301, a protection plate 302, a through hole 303 and an interception ring 304. The fixed ring 301 is used to install the interception ring 304 with a through hole 303 opened on its outer surface. The protection plate 302 is used to seal the top of the interception ring 304;

[0045] The intercepting ring 304 prevents sundries from entering the air intake frame 2, and the size of the through-hole 303 is determined according to requirements, as long as the air can circulate normally.

[0046] The ash storage assembly 4 includes a filter box 401, an intercepting net 402, and an inlet pipe 403. The intercepting net 402 is installed inside the filter box 401 to intercept dust, and the inlet pipe 403 is used to connect to the second three-way joint 16;

[0047] The intercepting net 402 can intercept the dust sucked out from the conical intercepting structure 24 in the filter box 401, which is convenient for the staff to clean.

[0048] The air extraction assembly 5 includes a fixed shell 501, an exhaust pipe 502, and an air extraction component 503. The fixed shell 501 is used to install the air extraction component 503 that provides suction force;

[0049] The other end of the exhaust pipe 502 can extend to the position at the bottom of the freight elevator car 1, and the air extraction component 503 can be an exhaust fan or an exhaust air blower 18.

[0050] A buffer assembly 9 is installed at the bottom of the freight elevator car 1. The buffer assembly 9 includes a fixed buckle 901, an arc-shaped elastic structure 902, a buffer spring 903, a fixed disk 904, and a contact plate 905. The fixed buckle 901 is used to fix the arc-shaped elastic structure 902 at the bottom of the freight elevator car 1, and the fixed disk 904 is used to fix the buffer spring 903 between the arc-shaped elastic structure 902 and the freight elevator car 1;

[0051] The contact plate 905 is fixed to the bottom of the two arc-shaped elastic structures 902 by bolts, and the arc-shaped elastic structure 902 is similar to the steel plate shock absorption on a freight car.

[0052] A plurality of mounting bases 8 are installed on both sides of the freight elevator car 1, and limiting rods 6 are installed on both sides of the freight elevator car 1 through limiting buckles 7;

[0053] The limiting rod 6 is slidably connected to the limiting buckle 7. The top and bottom ends of the limiting rod 6 are respectively connected to the top and bottom of the freight elevator shaft, and the mounting base 8 is used to install a structure that assists the safe operation of the freight elevator car 1.

[0054] The working principle of the air purification device for a freight elevator provided by the present invention is as follows:

[0055] An air inlet 26 is opened at each of the two corners near the front of the top of the freight elevator car 1. Then, two air inlet frames 2 with rubber frames 25 are installed on the top of the freight elevator car 1. A conical interception structure 24 is installed on the inner surface of the rubber frame 25, which can filter the air entering the air inlet frame 2 for the first time. At the same time, the mounting frame 23 with a support ring 28 is installed inside the air inlet frame 2 from the extraction port 27. An odor adsorption component 22 and a filter disc 19 are respectively installed on the support ring 28 inside the mounting frame 23. Activated carbon is filled between the odor adsorption component 22 and the packing disc 29 to enhance the filtering effect on dust and odor. At the same time, exhaust ports 17 are opened at each of the two corners near the bottom of the back of the freight elevator car 1. The exhaust ports 17 are blocked by an interception component 21 to prevent foreign objects from entering. At the same time, the inlet of the exhaust fan 18 is connected through a fixed pipe 20, a first three-way joint 11, a suction pipe 12 and an exhaust frame 10. The suction provided by the exhaust fan 18 can discharge the air inside the freight elevator car 1. During actual use, when the exhaust fan 18 is started to provide suction for exhaust, the dusty air in the freight elevator shaft will enter the interior of the freight elevator car 1 through the two air inlet frames 2. During this process, the air will be filtered and purified successively by the conical interception structure 24, the filter disc 19, the odor adsorption component 22 and the activated carbon on the packing disc 29. The purified air enters the interior from above inside the freight elevator car 1. At the same time, the exhaust fan 18 provides suction to discharge the air inside the freight elevator car 1 from the exhaust ports 17, forming an air circulation, so that the air inside the freight elevator car 1 is always maintained in a purified state. At the same time, the air extraction assembly 5 only needs to be started regularly to provide suction to cooperate with the filter and dust storage assembly 4 to discharge the dust intercepted by the conical interception structure 24 into the interior of the dust storage assembly 4 through the dust discharge pipe 13, and the staff only needs to clean it regularly.

[0056] Compared with the related technology, the air purification device for a freight elevator provided by the present invention has the following beneficial effects:

[0057] In order to enhance the purification effect of the air in the freight elevator, two air inlets 26 are opened at the top of the freight elevator car 1 near the two front corners. Then, two air inlet frames 2 with rubber frames 25 are installed on the top of the freight elevator car 1. A conical interception structure 24 is installed on the inner surface of the rubber frame 25, which can filter the air entering the air inlet frame 2 for the first time. At the same time, the mounting frame 23 with a support ring 28 is installed inside the air inlet frame 2 from the extraction port 27. Odor adsorption components 22 and filter discs 19 are respectively installed on the support ring 28 inside the mounting frame 23. Activated carbon is filled between the odor adsorption component 22 and the packing disc 29 to enhance the filtering effect on dust and odor. At the same time, two exhaust ports 17 are opened at the bottom of the back of the freight elevator car 1. The exhaust ports 17 are blocked by the interception component 21 to prevent foreign objects from entering. At the same time, the inlet of the exhaust fan 18 is connected through a fixed pipe 20, a first three-way joint 11, an air suction pipe 12 and an exhaust frame 10. The suction provided by the exhaust fan 18 can discharge the air inside the freight elevator car 1. Through this design, the air purification effect inside the freight elevator car 1 can be enhanced, and the first conical interception structure 24 can be automatically cleaned to ensure air circulation. The purified air circulates from top to bottom, keeping the air at the upper position inside the freight elevator car 1 in a state of the initially purified air.

[0058] Second Embodiment

[0059] Please refer to Figures 7 - 8 , Figure 7 which is a schematic structural diagram of the second embodiment of the air purification device for a freight elevator provided by the present invention; Figure 8 which is a schematic structural diagram of the aromatherapy frame provided by the present invention; Based on the air purification device for a freight elevator provided in the first embodiment of the present application, the second embodiment of the present application proposes another air purification device for a freight elevator. The second embodiment is merely a preferred mode of the first embodiment, and the implementation of the second embodiment will not affect the independent implementation of the first embodiment.

[0060] Specifically, the difference of the air purification device for a freight elevator provided in the second embodiment of the present application is that a plurality of mounting buckles 34 are installed at the bottom of the circulation disc 31, a bayonet 36 is opened at the top of the circulation disc 31, and a plurality of air inlet holes 35 are opened at the bottom of the inner wall of the circulation disc 31;

[0061] The mounting buckles 34 are used to install the circulation disc 31 inside the air inlet 26.

[0062] A sealing disc 33 is installed inside the bayonet 36, and an opening 32 is opened at the top of the sealing disc 33;

[0063] The shape of the opening 32 can be determined according to requirements.

[0064] At a position near one side at the bottom of the inner wall of the floating plate 31, an aromatherapy frame 38 with a threaded cap 37 is installed. On one side of the aromatherapy frame 38, a plurality of volatilization rods 40 are installed through a sealing plug 39;

[0065] One end of the volatilization rod 40 passes through the sealing plug 39 and inserts into the interior of the aromatherapy frame 38. The sealing plug 39 increases the sealing performance of the connection. Opening the threaded cap 37 allows the aromatherapy liquid to be introduced into the interior of the aromatherapy frame 38.

[0066] At a position near the other side at the bottom of the inner wall of the floating plate 31, a limiting frame 41 is installed. On one side of the limiting frame 41, a plurality of docking rings 30 are installed;

[0067] The docking ring 30 is connected to the other end of the volatilization rod 40 to increase stability.

[0068] Compared with the related art, the air purification device for a freight elevator provided by the present invention has the following

[0069] Beneficial effects:

[0070] In order to make the air inside the freight elevator car 1 have a certain fragrance, an aromatherapy frame 38 is installed inside the floating plate 31. On one side of the aromatherapy frame 38, a plurality of volatilization rods 40 are installed through a sealing plug 39. It is ensured that one end of each volatilization rod 40 is inserted into the aromatherapy frame 38. At the same time, the top of the floating plate 31 is sealed by a sealing disc 33 with an opening 32. Then, the floating plate 31 can be installed inside the air inlet 26 through the mounting buckle 34. When the air circulates inside the floating plate 31, the fragrance of the aromatherapy on the volatilization rods 40 will be brought into the interior of the freight elevator car 1. Through this design, the air inside the freight elevator car 1 can have a fresh fragrance after purification, reducing the influence of the peculiar smell of goods or the sweat smell of workers on the air inside the freight elevator car 1.

[0071] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention accordingly. Any equivalent structure or equivalent process transformation made by using the specification and drawings of the present invention, or directly or indirectly applied to other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. An air purification device for a freight elevator, characterized in that, Including: Freight elevator car; Two air inlets, the two air inlets are respectively opened at two corners of the top of the freight elevator car close to the front. Flow plates are installed inside the two air inlets. Air inlet frames are installed at positions of the top of the freight elevator car close to the two corners of the front. Rubber frames are installed inside the air inlet frames. Extraction ports are opened at the back of the two air inlet frames. Installation frames are installed inside the extraction ports. A packing plate is installed at the bottom of the inner wall of the installation frame. Two support rings are arranged on the inner surface of the installation frame. A sealing plate is fixedly connected to the back of the installation frame. A filter plate and an odor adsorption component are sequentially installed inside the installation frame from top to bottom. A conical interception structure is installed on the inner surface of the rubber frame. A dust discharge pipe is fixedly connected to the bottom end of the conical interception structure. An interception component is installed on the top of the air inlet frame. An air extraction component for providing suction is installed on the top of the freight elevator car. An ash storage component for intercepting dust is installed on the back of the air extraction component. Two connecting pipes are installed on the front of the ash storage component through a second three-way joint; Two air outlets, the two air outlets are respectively opened at two corners of the back of the freight elevator car close to the bottom. Interception components are installed inside the two air outlets. Exhaust frames are installed at positions of the back of the freight elevator car close to the two corners of the bottom. An exhaust fan is installed at the bottom of the freight elevator car. The inlet of the exhaust fan is installed with a first three-way joint through a fixed pipe. Suction pipes are installed at the two inlets of the first three-way joint.

2. The air purification device for a goods lift according to claim 1, characterized in that, The interception component includes a fixed ring, a protection plate, a through hole and an interception ring. The fixed ring is used for installing the interception ring with a through hole on its outer surface. The protection plate is used for sealing the top of the interception ring.

3. The air purification device for a freight elevator according to claim 1, characterized in that The ash storage component includes a filter box, an interception net and an inlet pipe. The interception net is installed inside the filter box for intercepting dust. The inlet pipe is used for connecting with the second three-way joint.

4. The air purification device for a freight elevator according to claim 1, characterized in that, The air extraction component includes a fixed shell, an exhaust pipe and an air extraction component. The fixed shell is used for installing the air extraction component for providing suction.

5. The air purification device for a freight elevator according to claim 1, characterized in that, A buffer component is installed at the bottom of the freight elevator car. The buffer component includes a fixed buckle, an arc-shaped elastic structure, a buffer spring, a fixed plate and a contact plate. The fixed buckle is used for fixing the arc-shaped elastic structure at the bottom of the freight elevator car. The fixed plate is used for fixing the buffer spring between the arc-shaped elastic structure and the freight elevator car.

6. The air purification device for a goods lift according to claim 1, characterized in that, A plurality of installation bases are installed on both sides of the freight elevator car. Limit rods are installed on both sides of the freight elevator car through limit buckles.

7. The air purification device for a freight elevator according to claim 1, characterized in that, A plurality of installation buckles are installed at the bottom of the flow plate. A bayonet is opened at the top end of the flow plate. A plurality of air inlet holes are opened at the bottom of the inner wall of the flow plate.

8. The air purification device for a freight elevator according to claim 7, characterized in that, A sealing plate is installed inside the bayonet. An opening is opened at the top of the sealing plate.

9. The air purification device for a freight elevator according to claim 1, characterized in that, An aromatherapy frame with a threaded cover is installed at a position close to one side of the bottom of the inner wall of the flow plate. A plurality of volatilization rods are installed on one side of the aromatherapy frame through a sealing plug.

10. The air purification device for a freight elevator according to claim 1, characterized in that, A limit frame is installed at a position close to the other side of the bottom of the inner wall of the flow plate. A plurality of docking rings are installed on one side of the limit frame.