Elevator entry dust guard

By using negative pressure adsorption from the fan at the inlet of the elevator and filtration of the liquid medium, the problem of dust emission during the production of fireproof coatings is solved, achieving effective dust filtration and environmental protection.

CN224585609UActive Publication Date: 2026-08-04HEBEI SHENGYI NEW BUILDING MATERIALS CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI SHENGYI NEW BUILDING MATERIALS CO LTD
Filing Date
2025-07-31
Publication Date
2026-08-04

AI Technical Summary

Technical Problem

In the production of fire-retardant coatings, the elevator generates dust when transporting raw materials. Existing shielding methods cannot reliably prevent dust, which affects the working environment.

Method used

The system uses a fan inside the enclosure to generate negative pressure suction, which adsorbs dust into a liquid medium for filtration through airflow. Combined with partitions and longitudinal baffles, the system provides zoned processing, using a liquid medium to filter dust, and a removable filter pad for secondary filtration.

Benefits of technology

It effectively prevents dust from rising, keeps the working environment clean, has a stable and reliable structure, and is easy to operate and maintain for a long time.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to dust removal device technical field especially relates to a hoist entrance dustproof device. Include: hoist and box, the entrance of hoist is equipped with ribbed plate, the box is connected with ribbed plate, the inside of box is equipped with dust collection space and exhaust space from below to above in proper order, the volume space for accommodating liquid medium is formed between two exhaust spaces, the intercommunication department of exhaust space and dust collection space is equipped with fan, the top of exhaust space is equipped with exhaust pipe that has been in liquid medium, the utility model discloses when hoisting raw materials and feeding, the adsorption of the dust that raises is realized through the fan of the inside of box, and after contacting liquid medium reaches filtration, the processing of dust is completed, and the working environment around is guaranteed.
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Description

Technical Field

[0001] This utility model relates to the field of dust removal device technology, and in particular to a dust prevention device for the inlet of a hoist. Background Technology

[0002] In the production of fire-retardant coatings, due to the layout of various production equipment, elevators are usually required to transport raw materials, lifting various raw materials into the mixing equipment. During the lifting operation, the falling raw materials and the lifting process will generate some dust. The common solution is to block the entrance to prevent dust from escaping, but this cannot reliably prevent dust from escaping, and dust still exists, affecting the working environment. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide a dust prevention device at the inlet of a hoist, which is designed to address the above-mentioned technical deficiencies. During the hoisting and feeding of raw materials, the dust is adsorbed by the fan inside the box and filtered through contact with the liquid medium, thus completing the dust treatment and ensuring the surrounding working environment.

[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is a dust prevention device for the inlet of a hoist, comprising: a hoist and a housing; a rib plate is provided at the inlet of the hoist; the housing is connected to the rib plate, and a dust collection space and an exhaust space are provided sequentially from bottom to top inside the housing, forming a volume space for containing a liquid medium between the two exhaust spaces, a fan is provided at the connection between the exhaust space and the dust collection space, and an exhaust pipe submerged in the liquid medium is provided above the exhaust space.

[0005] Preferably, the bottom two sides of the box are provided with slots.

[0006] Preferably, the bottom surface of the housing is provided with two horizontally arranged air inlets.

[0007] Preferably, the housing is provided with a partition, which divides the dust collection space and the exhaust space into front and rear parts.

[0008] Preferably, the exhaust space is provided with a longitudinal baffle.

[0009] Preferably, a water inlet pipe and a water outlet pipe are respectively provided on both sides of the volume space.

[0010] Preferably, a removable filter pad is provided above the volume space.

[0011] Preferably, a fixing space for installing the filter pad is provided above the volume space.

[0012] Preferably, both the box body and the elevator entrance are provided with an extension plate, and a fixing bolt is provided between the two extension plates.

[0013] Compared with the prior art, the present invention has the following advantages:

[0014] 1. The negative pressure suction generated by the fan continuously adsorbs the dust at the inlet of the elevator, and uses the airflow to blow the dust into the liquid medium to filter the dust and complete the treatment, which greatly avoids the dust from being raised and protects the surrounding working environment.

[0015] 2. The box slot connects with the rib plate at the inlet of the hoist to achieve overall installation positioning. The connection between the extension plate and the fixing bolts further improves the stability after installation and makes subsequent maintenance and disassembly relatively convenient.

[0016] 3. By having the airflow carrying dust come into direct contact with the liquid medium, dust filtration is achieved, solving the problem of dust collection and treatment. The structure is stable and reliable, and only the liquid medium needs to be replaced to meet the long-term operation of the equipment. Attached Figure Description

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

[0018] Figure 2 This is a schematic diagram of the box structure;

[0019] Figure 3 This is a sectional view of the side of the enclosure;

[0020] Figure 4 This is a sectional view of the front of the enclosure;

[0021] Figure 5 This is a schematic diagram of the structure above the box.

[0022] Figure 6 This is a schematic diagram of the structure at the volumetric space.

[0023] Figure 7 This is a schematic diagram of the structure at the inlet of the hoist.

[0024] In the diagram: 1. Elevator; 2. Housing; 3. Dust collection space; 4. Exhaust space; 5. Volume space; 6. Outer plate; 101. Rib; 201. Slot; 202. Air inlet; 203. Partition; 401. Fan; 402. Exhaust pipe; 403. Longitudinal baffle; 501. Water inlet pipe; 502. Drain pipe; 503. Filter pad; 504. Fixing space; 601. Fixing bolt. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this utility model. Furthermore, descriptions of well-known structures and technologies are omitted in the following description to avoid unnecessarily obscuring the concept of this utility model.

[0026] Specific implementation method one: Combining Figure 1-7 As shown, a dust prevention device for the inlet of a hoist includes: a hoist 1 and a housing 2; the inlet of the hoist 1 is provided with an upwardly extending rib 101; the housing 2 is connected to the rib 101 and forms a passage for raw materials to enter; the interior of the housing 2 is provided with a dust collection space 3 and an exhaust space 4 from bottom to top, and a volume space 5 for containing a liquid medium is formed between the two exhaust spaces 4. Water is preferred as the liquid medium because it is low in cost and meets the filtration requirements. A fan 401 is provided at the connection between the exhaust space 4 and the dust collection space 3. Multiple fans 401 can be arranged to increase the air intake. At the same time, an exhaust pipe 402 is provided above the exhaust space 4 and is immersed in the liquid medium, so that the airflow mixed with dust is directly blown into the liquid medium to complete the filtration. The purified airflow is discharged from the exhaust pipe 402 at the top of the housing 2.

[0027] Preferred embodiments, in combination Figure 4 and Figure 7 As shown, slots 201 are provided on both sides of the bottom of the box 2. The slots 201 are connected to the rib plate 101 to realize the positioning and installation of the box 2.

[0028] Preferred embodiments, in combination Figure 3 As shown, the bottom surface of the box 2 is provided with two horizontally arranged air inlets 202, which simultaneously adsorb the air in front of and behind the inlet position, ensuring effective treatment of the concentrated dust-raising area and preventing dust from being blown out.

[0029] Preferred embodiments, in combination Figure 3 and Figure 4 As shown, the box 2 is equipped with a partition 203 inside, which divides the dust collection space 3 and the exhaust space 4 into front and rear parts, so as to realize the zoned treatment and improve the dust collection effect.

[0030] Preferred embodiments, in combination Figure 3 and Figure 4 As shown, the exhaust space 4 is equipped with longitudinal baffles 403, which can divide the exhaust space 4 into four areas, each area corresponding to a fan 401, so as to achieve separate treatment and ensure that the airflow is more concentrated.

[0031] Preferred embodiments, in combination Figure 2 and Figure 6As shown, the volume space 5 is provided with an inlet pipe 501 and a drain pipe 502 on both sides. The inlet pipe 501 is located in the upper area of ​​the volume space 5, while the drain pipe 502 is close to the bottom area of ​​the volume space 5, which facilitates sewage discharge. At the same time, the inlet pipe 501 is connected to the water source and, with the installation of a controllable valve, can realize the control of the internal water flow replacement.

[0032] Preferred embodiments, in combination Figure 5 and Figure 6 As shown, a removable filter pad 503 is provided above the volume space 5. The filter pad 503 is made of sponge material, which can perform secondary filtration on the purified airflow to ensure the treatment effect, so that the purified airflow can be directly discharged into the room.

[0033] Preferred embodiments, in combination Figure 6 As shown, a fixing space 504 for installing filter pad 503 is provided above the volume space 5. By pressing the filter pad 503 in, the installation of filter pad 503 can be completed quickly, and disassembly is also relatively convenient, making it easy to replace later. In this regard, filter pad 503 can also be connected to the housing 2 by screws, which also meets the needs of installation and disassembly.

[0034] Preferred embodiments, in combination Figure 2 and Figure 6 As shown, both the box body 2 and the elevator 1 have an extension plate 6 at their inlets. The extension plate 6 has a through hole, and a fixing bolt 601 is provided between the two extension plates 6. The box body 2 is fixed by inserting the fixing bolt 601 into the through hole. This can improve the stability of the box body 2 after it is installed, so that it is not affected by the vibration of the elevator 1.

[0035] The top cover of the housing 2 is connected to itself with screws, making it easy to remove the top cover and replace and maintain the internal filter pad 503. In order to prevent air leakage at the connection between the top cover and the housing 2, a rubber gasket can be added to improve the sealing performance. The structural design of the exhaust space 4 reduces the area of ​​the airflow exhaust end. With the installation of the exhaust pipe 402, the airflow velocity and pressure are increased to achieve the exhaust of the airflow. The exhaust pipe 402 is inclined downward to facilitate the contact between the airflow and the liquid. At the same time, the water level in the volume space 5 should be lower than the connection between the exhaust pipe 402 and the exhaust space 4.

[0036] It should be understood that the specific embodiments described above are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within its protection scope. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.

Claims

1. An elevator entrance dust guard characterized in that, include: The elevator (1) and the housing (2) are provided; the elevator (1) is provided with a rib plate (101) at its inlet; the housing (2) is connected to the rib plate (101), and the housing (2) is provided with a dust collection space (3) and an exhaust space (4) from bottom to top inside. A volume space (5) for containing liquid medium is formed between the two exhaust spaces (4), and a fan (401) is provided at the connection between the exhaust space (4) and the dust collection space (3). An exhaust pipe (402) submerged in liquid medium is provided above the exhaust space (4).

2. An elevator entrance dust guard according to claim 1, characterized in that: The bottom sides of the box (2) are provided with slots (201).

3. An elevator entrance dust guard according to claim 1, characterized in that: The bottom surface of the housing (2) is provided with two horizontally arranged air inlets (202).

4. A dust prevention device for the inlet of a hoist according to claim 3, characterized in that: The box (2) is equipped with a partition (203) inside, which divides the dust collection space (3) and the exhaust space (4) into front and rear parts.

5. An elevator entrance dust guard according to claim 4, characterized in that: The exhaust space (4) is provided with a longitudinal baffle (403).

6. An elevator entrance dust guard according to claim 1, characterized in that: The volume space (5) is provided with an inlet pipe (501) and an outlet pipe (502) on both sides respectively.

7. An elevator entrance dust guard according to claim 1, characterized in that: A removable filter pad (503) is provided above the volume space (5).

8. An elevator entrance dust guard according to claim 7, characterized in that: The volume space (5) is provided with a fixing space (504) above it for installing the filter pad (503).

9. An elevator entrance dust guard according to claim 1, characterized in that: Both the box body (2) and the elevator (1) are provided with an extension plate (6) at their entrances, and a fixing bolt (601) is provided between the two extension plates (6).