An electric bus three-electricity dust removal workshop for preventing dust from escaping

By installing air curtain machines and soft curtain sealing components on the door frame of the dust removal passage of electric buses, effective dust blocking is achieved during the entry and exit of electric buses, solving the problem of poor sealing effect of traditional sealing structures and improving the dust control capability of the dust removal workshop.

CN224542626UActive Publication Date: 2026-07-24CHENGDU PUBLIC TRANSPORT GRP LONGXING AUTOMOBILE TECH SERVICE CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHENGDU PUBLIC TRANSPORT GRP LONGXING AUTOMOBILE TECH SERVICE CO LTD
Filing Date
2025-08-04
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

In existing technologies, when electric buses enter and exit dust removal channels, traditional sealing structures are unable to form a continuous and tight sealing barrier, leading to dust dispersion, environmental pollution, impact on equipment operating accuracy, and increased cleaning and maintenance costs and health risks.

Method used

An air curtain machine and a soft curtain sealing assembly are installed on the door frame of the dust removal channel. The soft curtain sealing assembly consists of a winding section and a stretching section. The automatic winding and unfolding of the soft curtain is achieved by a drive motor and a synchronous belt. Combined with the air curtain machine, a double seal of air curtain and curtain is formed to block dust.

Benefits of technology

It effectively prevents dust from escaping, improves the sealing effect of the dust removal workshop, reduces space occupation, ensures safe operation of equipment, and reduces cleaning and maintenance costs and health risks.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224542626U_ABST
    Figure CN224542626U_ABST
Patent Text Reader

Abstract

The utility model discloses an electric bus three electricity dust removal workshop of preventing dust to escape, and dust removal passageway is constituted by both side walls and bottom, and the import and export are equipped with door frame, and the door frame top outside is equipped with air curtain machine, and the both sides are equipped with vertical installation groove and transverse groove intercommunication formed installation groove, and are equipped with soft curtain sealing assembly that can move to the door frame middle. Soft curtain sealing assembly includes winding up part and stretching part, and winding up part realizes soft curtain winding through drive motor, rotary column and synchronous belt, and stretching part stretches soft curtain with extension motor and telescopic link, and the both ends of soft curtain are fixed to rotary column and telescopic link respectively. The door frame top is equipped with air groove hole that is aligned with the air curtain machine air outlet. The utility model discloses through " air curtain + curtain " double seal, and combines the automatic winding and stretching of soft curtain with the automatic winding and stretching, effectively blocks dust to escape, improves dust control ability of dust removal workshop, and has good sealing effect, transmission stability, strong adaptability and the advantages such as.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of dust removal technology for the three-electric system of electric buses, and in particular to a dust removal workshop for the three-electric system of electric buses to prevent dust from escaping. Background Technology

[0002] In dust removal operations for the three-electric (battery, motor, and electronic control) systems of electric buses, the dust removal workshop must ensure effective dust control to avoid environmental pollution and equipment malfunction. However, in existing technologies, when electric buses enter and exit the dust removal channel, traditional sealing structures (such as a single curtain or simple air curtain) are unable to form a continuous and tight sealing barrier during the dynamic movement of the vehicle. Dust often escapes outside the workshop with the vehicle due to poor sealing at the channel entrance and exit. This dust escape not only pollutes the surrounding environment but may also affect the operational accuracy of equipment and even cause safety hazards due to dust accumulation (such as poor equipment heat dissipation and the risk of dust explosion). It also increases the cleaning and maintenance costs of the workshop and the health risks to workers. Therefore, there is an urgent need for a dust removal channel structure that can effectively prevent dust escape during vehicle entry and exit and after vehicle passage, to solve the problems of poor sealing and insufficient dynamic adaptability in existing technologies. Utility Model Content

[0003] The purpose of this invention is to provide a dust removal workshop for the three electrical components of an electric bus that prevents dust from escaping, thus solving the aforementioned problems.

[0004] This utility model is achieved through the following technical solution:

[0005] An electric bus three-electric dust removal workshop to prevent dust escape, wherein the dust removal channel is formed by the two side walls and the bottom. Door frames are set at the inlet and outlet of the channel, and an air curtain machine is installed on the outer top of the door frame. Vertical mounting grooves are opened on the opposite sides of the door frame. A horizontal groove along the length of the top of the door frame is opened on the lower top surface of the door frame, and the vertical mounting groove and the horizontal groove are connected to form a mounting groove. A soft curtain sealing component that can move towards the middle of the door frame is installed in the mounting groove.

[0006] Furthermore,

[0007] The soft curtain sealing assembly includes a winding section for winding up the soft curtain and a stretching section for stretching the soft curtain.

[0008] Furthermore,

[0009] The winding section includes a drive motor, a first rotating column, a second rotating column, and a timing belt. The drive motor is installed at the bottom of one of the two vertical mounting slots. The drive motor is vertically connected to the first rotating column, and the upper end of the first rotating column is movably connected vertically to the bottom surface of the transverse slot. The second rotating column is installed in the other vertical mounting slot, and the upper end of the second rotating column is movably connected vertically to the bottom surface of the transverse slot. The lower end of the second rotating column is movably connected to the bottom of the vertical mounting slot. The timing belt is sleeved on the first rotating column and the second rotating column near the bottom of the transverse slot.

[0010] Furthermore,

[0011] The first and second rotating columns have toothed grooves that match the timing belt at their contact points with the timing belt.

[0012] Furthermore,

[0013] The tensioning part includes a mounting plate, an extension motor, a telescopic rod, and pads. The mounting plate is horizontally installed on the two side walls of the transverse groove width direction at the corresponding two vertical mounting slots and is located below the synchronous belt. The mounting plate has holes for the first rotating column and the second rotating column to pass through. Pads are provided at the bottom of the two vertical mounting slots on one side of the opposite side of the mounting plate. Opposite motors are provided on the lower surface of the mounting plate and the upper surface of the two pads on one side of the opposite side of the two mounting plates. The motors are vertically connected to the telescopic rods.

[0014] Furthermore,

[0015] The soft curtain sealing assembly also includes a soft curtain, one end of which is fixedly installed in the same vertical mounting groove between the first or second rotating column and the corresponding two telescopic rods. The other end of the soft curtain extends out connecting parts on both sides and is fixedly connected to the opposite surfaces of the two telescopic rods respectively.

[0016] Furthermore,

[0017] The door frame has an air curtain machine slot hole that runs through the top and bottom surfaces of the top, parallel to the horizontal groove. An air curtain machine is installed on the air curtain machine slot hole and the air curtain machine slot hole is aligned with the air outlet of the air curtain machine.

[0018] The beneficial effects of this utility model are:

[0019] 1. This utility model, by installing an air curtain machine on the outer side of the top of the door frame and opening air slots at the top of the door frame aligned with the air outlet of the air curtain machine, allows the airflow generated by the air curtain machine to be blown out evenly in the vertical direction, forming an air curtain barrier. In conjunction with the soft curtain sealing component, it blocks dust from the dual dimensions of "air curtain + curtain". Especially when buses enter and exit the passage, the air curtain can temporarily block dust when the soft curtain is opened. After the vehicle passes, the two work together to enhance the sealing effect, effectively improving the dust control capability of the dust removal workshop.

[0020] 2. The soft curtain sealing assembly is divided into a winding section and a stretching section. The winding section can automatically wind up and store the soft curtain using a drive motor and synchronous belt drive, reducing space occupation. The stretching section drives the telescopic rod to move laterally through an extension motor, applying tension to both sides of the soft curtain when it is unfolded, so that the soft curtain moves closer to the center of the door frame and fits tightly against the side of the bus. The combination of the two ensures the convenience of soft curtain storage and improves the fit and sealing performance during sealing. Attached Figure Description

[0021] The accompanying drawings, which are included to provide a further understanding of the embodiments of the present invention and form part of this application, do not constitute a limitation thereof. In the drawings:

[0022] Figure 1 This is a schematic diagram of the overall design of this utility model;

[0023] Figure 2 This is a schematic diagram of the flexible curtain sealing assembly.

[0024] Figure 3 This is a schematic diagram showing the state of an electric bus before it enters the dust removal channel.

[0025] Figure 4 This is a schematic diagram showing the state of an electric bus entering a dust removal channel.

[0026] Figure 5 This is a perspective view of the door frame from above.

[0027] The attached diagram shows the markings and corresponding component names:

[0028] 1-Dust removal channel, 10-Top, 11-Side wall, 2-Door frame, 20-Vertical mounting slot, 21-Horizontal slot, 22-Air curtain machine air slot hole, 3-Air curtain machine, 4-Soft curtain sealing assembly, 40-Roll-up part, 401-Drive motor, 402-First rotating column, 403-Second rotating column, 404-Synchronous belt, 41-Tension part, 410-Mounting plate, 411-Extension motor, 412-Telescopic rod, 413-Padded block, 5-Soft curtain, 50-Connecting part, 6-Electric bus. Detailed Implementation

[0029] The present invention will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of the present invention is not limited thereto.

[0030] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "longitudinal", "lateral", "horizontal", "inner", "outer", "front", "rear", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0031] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "have," "install," "connect," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0032] See the example. Figures 1 to 4 :

[0033] An electric bus three-electric dust removal workshop 1 for preventing dust emission has a dust removal channel 1 formed by two side walls 11 and the bottom. Door frames 2 are set at both the inlet and outlet of the channel. An air curtain machine 3 is set on the outer side of the top 10 of the door frame 2. Vertical mounting grooves 20 are opened on the opposite sides of the door frame 2. A transverse groove 21 along the length of the top 10 of the door frame 2 is opened on the lower surface of the top 10 of the door frame 2. The vertical mounting groove 20 and the transverse groove 21 are connected to form a mounting groove. A soft curtain sealing assembly 4 that can move towards the middle of the door frame 2 is set in the mounting groove.

[0034] Furthermore,

[0035] The soft curtain sealing assembly 4 includes a winding section 40 for winding up the soft curtain 5 and a stretching section 41 for stretching the curtain.

[0036] The soft curtain sealing assembly 4 is divided into a winding section 40 and a stretching section 41. The winding section 40 can be used to automatically roll up and store the soft curtain 5, reducing space occupation. The stretching section 41 can also ensure that the soft curtain 5 fits tightly against the side of the bus entering the dust removal lane when it is unfolded, thus improving the sealing effect.

[0037] Furthermore,

[0038] The winding section 40 includes a drive motor 401, a first rotating column 402, a second rotating column 403, and a timing belt 404. The drive motor 401 is installed at the bottom of one of the two vertical mounting slots 20. The drive motor 401 is vertically connected to the first rotating column 402, and the upper end of the first rotating column 402 is vertically and movably connected to the bottom surface of the transverse slot 21. The second rotating column 403 is installed in the other vertical mounting slot 20, and the upper end of the second rotating column 403 is vertically and movably connected to the bottom surface of the transverse slot 21. The lower end of the second rotating column 403 is movably connected to the bottom of the vertical mounting slot 20. The timing belt 404 is sleeved on the first rotating column 402 and the second rotating column 403 near the bottom of the transverse slot 21.

[0039] The drive motor 401 is connected to the first and second rotating columns 403 via a synchronous belt 404, enabling synchronous winding and unwinding of the soft curtains 5 on both sides. This avoids twisting or uneven tension of the soft curtains 5 due to asynchronous transmission on both sides, thus ensuring uniform sealing. The synchronous belt 404 transmission features high transmission accuracy and low noise, enabling stable operation in dusty environments such as dust removal workshops and reducing maintenance frequency. Simultaneously, the rotating columns are vertically installed in the vertical mounting slot 20 and the horizontal slot 21, ensuring smooth vertical movement of the soft curtains 5 during winding and preventing deviation.

[0040] In one embodiment, a drive motor 401 is mounted at the bottom of a vertical mounting slot 20 on one side, with its output shaft vertically connected to a first rotating column 402. The upper end of the first rotating column 402 is movably connected to the bottom surface of a horizontal slot 21. A second rotating column 403 in the other vertical mounting slot 20 is linked to the first rotating column 402 via a synchronous belt 404. When the drive motor 401 starts, the synchronous belt 404 drives the two rotating columns to rotate synchronously, and the soft curtain 5 is wound around the rotating columns to achieve winding. Conversely, the motor reverses to release the soft curtain 5. The synchronous belt 404 is fitted around the two rotating columns near the bottom of the horizontal slot 21 to ensure uniform power transmission.

[0041] Furthermore,

[0042] The first rotating column 402 and the second rotating column 403 have toothed grooves that match the timing belt 404 at their contact points with the timing belt 404.

[0043] Gutters matching the timing belt 404 are formed on the surfaces of the first and second rotating columns 403. These meshing structures enhance the friction between the timing belt 404 and the rotating columns, preventing slippage during transmission. This is especially important when the flexible curtain 5 is subjected to dust accumulation or external pulling, ensuring the stability of the winding action. The groove design also improves transmission accuracy, ensuring consistent rotational speeds of the two rotating columns, preventing the flexible curtain 5 from tearing due to uneven stress, and extending the service life of the sealing components.

[0044] Furthermore,

[0045] The stretching part 41 includes a mounting plate 410, an extension motor 411, a telescopic rod 412, and pads 413. The mounting plate 410 is horizontally mounted on the two side walls 11 of the transverse groove 21 in the width direction at the corresponding two vertical mounting slots 20 and is located below the synchronous belt 404. The mounting plate 410 has holes for the first rotating column 402 and the second rotating column 403 to pass through. Pads 413 are provided at the bottom of the two vertical mounting slots 20 on one side of the opposite side of the mounting plate 410. Opposite motors are provided on the lower surface of the mounting plate 410 and the upper surface of the two pads 413 on one side of the opposite side of the two mounting plates 410. The motors are vertically connected to the telescopic rod 412.

[0046] The stretching part 41 is fixed to both sides of the transverse groove 21 by the mounting plate 410. The extension motor 411 drives the telescopic rod 412 to move laterally, which can apply tension to both sides of the soft curtain 5 when it is unfolded, so that the soft curtain 5 moves closer to the middle of the door frame 2. The pad 413 is set at the bottom of the vertical mounting groove 20, so that the bottom end of the extension motor 411 is aligned with the bottom end of the first rotating column 402. The purpose is to reduce the length of the connecting part 50 of the soft curtain 5, and to avoid the connecting part 50 being too long and causing large deformation in the direction of the first rotating column 402 during the stretching of the soft curtain 5, which would prevent it from forming a blocking seal with the side of the bus.

[0047] Furthermore,

[0048] The soft curtain sealing assembly 4 also includes a soft curtain 5. One end of the soft curtain 5 is fixedly installed in the same vertical mounting groove 20 at the position between the first rotating column 402 or the second rotating column 403 corresponding to the two telescopic rods 412. The other end of the soft curtain 5 extends out connecting parts 50 on both sides and is fixedly connected to the opposite surfaces of the two telescopic rods 412 respectively.

[0049] One end of the soft curtain 5 is fixed to the rotating column, and the other end is connected to the telescopic rod 412 via the connecting part 50, so that the soft curtain 5 is wrapped around the rotating column when rolled up, avoiding wear caused by folding; when the soft curtain is unfolded, the fixed connection between the connecting part 50 and the telescopic rod 412 ensures that the soft curtain 5 is evenly stressed on both sides and can drive the soft curtain 5 to move in the middle of the door frame, while preventing the soft curtain 5 from falling off or deforming during the stretching process. In addition, when the electric bus 6 passes through the air curtain, between the two telescopic rods 412, the soft curtain 5 is completely in contact with the side of the electric bus 6 within the door frame 2.

[0050] When the electric bus 6 enters or exits the air curtain, turbulence will occur around the air curtain, reducing the isolation effect of the air curtain. The soft curtain 5 fits against the side of the electric bus 6 to effectively prevent dust from escaping due to the reduced isolation effect of the air curtain.

[0051] Furthermore,

[0052] The door frame 2 has an air curtain machine slot 22 that runs through the upper and lower surfaces of the top 10 parallel to the horizontal groove 21. An air curtain machine 3 is installed on the air curtain machine slot 22 and the air curtain machine slot 22 is aligned with the air outlet of the air curtain machine 3.

[0053] A through-hole 22 for the air curtain machine is made at the top 10 of the door frame 2, and the hole is aligned with the air outlet of the air curtain machine 3. This ensures that the airflow generated by the air curtain machine 3 is blown out evenly in a direction perpendicular to the door frame 2, forming an air curtain barrier. The air curtain works in conjunction with the soft curtain sealing assembly 4 to block dust from a dual dimension of "air curtain + curtain". Especially when buses enter and exit the passage, the air curtain can temporarily block dust and reduce its dispersion when the soft curtain 5 is open. After the vehicle passes, the air curtain and the soft curtain 5 work together to enhance the sealing effect and improve the dust control capability of the dust removal workshop.

[0054] The method of using this utility model is as follows:

[0055] In use, when the infrared sensors on both sides of the door frame 2 detect the bus, the drive motor 401 starts, driving the first rotating column 402 to rotate. The synchronous belt 404 causes the second rotating column 403 to rotate synchronously, releasing the soft curtain 5. Simultaneously, the extension motor 411 drives the telescopic rod 412 to extend towards the center of the door frame 2, tightening the connecting parts 50 on both sides of the soft curtain 5, ensuring the soft curtain 5 fits tightly against the side of the bus. The air curtain machine 3 at the top 10 of the door frame 2 blows out a vertical air curtain through air slots, forming a double seal of "air curtain + curtain" with the soft curtain 5. After the vehicle passes, the drive motor 401 reverses to retract the soft curtain 5, the extension motor 411 drives the telescopic rod 412 to retract, and the soft curtain 5 is wrapped around the rotating column for storage. The air curtain machine 3 continues to operate to prevent residual dust from escaping. The winding section 40 uses a drive motor 401 and a synchronous belt 404 to ensure that the soft curtains 5 on both sides are wound and unwound synchronously. The toothed grooves on the surface of the rotating column mesh with the synchronous belt 404 to prevent slippage. The stretching section 41 fixes the extension motor 411 through the mounting plate 410 and the pad 413, so that the tension is uniform when the telescopic rod 412 moves laterally, avoiding deformation of the soft curtain 5 connection section 50 and ensuring a tight seal. The air slot holes 22 of the air curtain machine are aligned with the air outlet, so that the airflow is blown out evenly to form an air curtain barrier. Together with the soft curtain 5, it blocks dust from two dimensions, effectively preventing dust from escaping at the moment of vehicle entry and exit and after passing through, and improving the dust control capability of the dust removal workshop.

[0056] The specific embodiments described above further illustrate the purpose, technical solution, and beneficial effects of this utility model. It should be understood that the above description is only a specific embodiment of this utility model and is not intended to limit the scope of protection of this utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the scope of protection of this utility model.

Claims

1. A dust removal workshop for the three electrical components of an electric bus to prevent dust escape, characterized in that, The dust removal channel (1) is a channel formed by two side walls (11) and the bottom. Door frames (2) are set at the inlet and outlet of the channel. An air curtain machine (3) is set on the outside of the top (10) of the door frame (2). Vertical mounting grooves (20) are opened on the opposite sides of the door frame (2). A transverse groove (21) along the length of the top (10) of the door frame (2) is opened on the lower surface of the top (10) of the door frame (2). The vertical mounting groove (20) and the transverse groove (21) are connected to form a mounting groove. A soft curtain sealing component (4) that can move towards the middle of the door frame (2) is set in the mounting groove.

2. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 1, characterized in that, The soft curtain sealing assembly (4) includes a winding section (40) for winding up the soft curtain (5) and a stretching section (41) for stretching the curtain.

3. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 2, characterized in that, The winding section (40) includes a drive motor (401), a first rotating column (402), a second rotating column (403), and a timing belt (404). The drive motor (401) is installed at the bottom of one of the two vertical mounting slots (20). The drive motor (401) is vertically connected to the first rotating column (402), and the upper end of the first rotating column (402) is vertically and movably connected to the bottom surface of the transverse slot (21). The second rotating column (403) is installed in the other vertical mounting slot (20), and the upper end of the second rotating column (403) is vertically and movably connected to the bottom surface of the transverse slot (21). The lower end of the second rotating column (403) is movably connected to the bottom of the vertical mounting slot (20). The timing belt (404) is sleeved on the first rotating column (402) and the second rotating column (403) near the bottom of the transverse slot (21).

4. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 3, characterized in that, The first rotating column (402), the second rotating column (403) and the synchronous belt (404) have toothed grooves that match the synchronous belt (404) at the contact points.

5. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 3, characterized in that, The stretching part (41) includes a mounting plate (410), an extension motor (411), a telescopic rod (412), and a pad (413). The mounting plate (410) is horizontally installed on the two side walls (11) of the transverse groove (21) at the corresponding two vertical mounting slots (20) and located below the synchronous belt (404). The mounting plate (410) has holes for the first rotating column (402) and the second rotating column (403) to pass through. A pad (413) is provided at the bottom of the two vertical mounting slots (20) on one side of the opposite side of the mounting plate (410). On the opposite side of the two mounting plates (410), on the lower surface and the upper surface of the two pads (413), the mounting plate (410) has a motor on the lower surface and the upper surface of the two pads (413). The motors are vertically connected to the telescopic rod (412).

6. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 5, characterized in that, The soft curtain sealing assembly (4) also includes a soft curtain (5). One end of the soft curtain (5) is fixedly installed in the same vertical mounting groove (20) between the first rotating column (402) or the second rotating column (403) and the corresponding two telescopic rods (412). The other end of the soft curtain (5) extends out connecting parts (50) on both sides and is fixedly connected to the opposite surfaces of the two telescopic rods (412).

7. The dust removal workshop for electric buses' three electrical systems (battery, motor, and electronic control system) as described in claim 1, characterized in that, The door frame (2) has an air curtain machine slot hole (22) that runs through the upper and lower surfaces of the top (10) parallel to the horizontal groove (21) on the top (10). An air curtain machine (3) is installed on the air curtain machine slot hole (22) and the air curtain machine slot hole (22) is aligned with the air outlet of the air curtain machine (3).