A filter assembly for an air purification device of a motor train unit

Abstract

The utility model relates to air purification technical field, concretely relates to a filter assembly for air purification device of motor train unit, including installation frame, is equipped with containing cavity on the installation frame, is equipped with the clamping groove in both ends of containing cavity, is equipped with the baffle in containing cavity, is equipped with the first guide groove on the baffle, one end fixedly connected with the first limit ring of first guide groove, the clamping head of sliding connection has in first guide groove, one end of clamping head is inclined plane, is equipped with spring between clamping head and first limit ring, the second guide groove is opened in clamping head, sliding connection has guide rod in second guide groove, is equipped with drive mechanism between two guide rods. The utility model discloses through setting up inclined plane clamping head and spring linkage, when baffle pushes into containing cavity, the inclined plane of clamping head is extruded and automatically retracts, after baffle in place, spring promotes clamping head to embed clamping groove, forms mechanical interlock, and spring provides axial compression force simultaneously, ensures that clamping head does not loosen under the continuous vibration of motor train unit, effectively prevents baffle accidental slip.

Description

Technical Field

[0001] This utility model relates to the field of air purification technology, specifically to a filter component for an air purification device for high-speed trains. Background Technology

[0002] As a confined space, the air quality of a high-speed train carriage is highly dependent on the air purification device. The filter component, as a core component, needs to be disassembled and maintained regularly to ensure its sterilization, disinfection, dust removal, and odor removal efficiency.

[0003] Chinese patent CN219063679U discloses an air purification filter assembly. This filter assembly uses a spring limiting block to achieve quick installation and removal of the filter element. However, the baffle is fixed by a sliding groove and a sliding strip. During the operation of the EMU, continuous vibration is generated. The sliding groove structure is prone to wear and loosening under long-term vibration conditions, which can lead to the baffle slipping and failure. Once the baffle slips, it will cause the filter element to shift and pollutants to leak, seriously threatening the air quality in the carriage. Therefore, there is an urgent need for a locking mechanism that combines vibration resistance and stability with quick operation to solve the technical pain points under the special operating conditions of the EMU. Utility Model Content

[0004] This invention provides a filter assembly for an air purification device in high-speed trains to solve the problems mentioned in the background art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows: a filter assembly for an air purification device for high-speed trains, including an installation frame installed in the air purification device of the high-speed train, a pull-out groove is provided on one side of the installation frame, a filter element is slidably connected in the pull-out groove, a receiving cavity is provided at the outlet of the pull-out groove on the installation frame, two oppositely arranged slots are provided at both ends of the receiving cavity, a baffle is provided in the receiving cavity, a first guide groove corresponding to the slot is provided on the baffle, a first limiting ring is fixedly connected to the end of the first guide groove away from the slot, a clamping head is slidably connected in the first guide groove, the end of the clamping head near the slot is inclined, the outer side of the inclined surface is set close to the slot, a spring is provided between the clamping head and the first limiting ring, a second guide groove is provided in the clamping head along the axial direction, a guide rod is slidably connected in the second guide groove, a limiting mechanism is provided between the guide rod and the second guide groove, and a driving mechanism is provided between the two guide rods to drive the two guide rods to extend and retract synchronously.

[0006] Preferably, the limiting mechanism includes a limiting block fixedly connected to one end of the guide rod near the slot, the limiting block being slidably connected to the second guide groove, and a second limiting ring being fixedly connected to one end of the second guide groove away from the slot.

[0007] Preferably, the first guide groove and the second guide groove have rectangular cross sections, and a cavity is formed inside the baffle. The driving mechanism includes a rotating shaft rotatably connected to the outer surface of the baffle. A hand-tightening head is coaxially fixed on the rotating shaft. The end of the rotating shaft away from the hand-tightening head extends into the cavity and is connected to a transmission rod through a transmission assembly. The transmission rod and the guide rod are coaxially arranged. Both ends of the transmission rod are coaxially fixed with internal threaded cylinders. The threads of the two internal threaded cylinders have opposite directions. The guide rod extends to the outside of the second guide groove and is threadedly connected to the internal threaded cylinders.

[0008] Preferably, a fixed plate is fixedly connected to both ends of the transmission rod inside the cavity, and the transmission rod is rotatably connected to the fixed plate.

[0009] Preferably, a handle is fixedly connected to the outside of the baffle.

[0010] The beneficial effects of this utility model are as follows: (1) By setting the inclined card head and spring linkage, when the baffle is pushed into the receiving cavity, the inclined surface of the card head is squeezed and automatically retracts. After the baffle is in place, the spring pushes the card head into the card slot to form a mechanical interlock. At the same time, the spring provides axial clamping force to ensure that the card head does not loosen under the continuous vibration of the EMU and effectively prevents the baffle from slipping out accidentally; (2) By rotating the hand screw head to drive the transmission rod to rotate, the bidirectional threaded cylinder is driven to retract the guide rods on both sides synchronously. The guide rod drives the card head to overcome the spring force and retract into the first guide slot through the limit mechanism, so that the card head can be unlocked with one key, which is convenient for the staff to operate. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the structure of this utility model;

[0012] Figure 2 This is an exploded view of the present invention;

[0013] Figure 3 This is a schematic diagram of the internal structure of the baffle of this utility model;

[0014] Figure 4 for Figure 3 A magnified structural diagram of part A in the middle;

[0015] Figure 5 for Figure 3 A magnified structural diagram of section B in the middle.

[0016] Reference numerals: 1. Mounting frame, 2. Pull-out groove, 3. Filter element, 4. Receiving cavity, 5. Slot, 6. Baffle, 7. First guide groove, 8. First limiting ring, 9. Clip, 10. Spring, 11. Second guide groove, 12. Guide rod, 13. Limiting mechanism, 131. Limiting block, 132. Second limiting ring, 14. Drive mechanism, 141. Rotating shaft, 142. Hand tightening head, 143. Transmission assembly, 144. Transmission rod, 145. Fixing plate, 146. Internal threaded cylinder, 15. Cavity, 16. Handle. Detailed Implementation

[0017] The present invention will now be further described with reference to the accompanying drawings.

[0018] like Figure 1-5 As shown, this utility model provides a filter assembly for an air purification device in a high-speed train, including a mounting frame 1 installed inside the air purification device. A pull-out groove 2 is provided on one side of the mounting frame 1, and a filter element 3 is slidably connected within the pull-out groove 2. A receiving cavity 4 is provided at the outlet of the pull-out groove 2 on the mounting frame 1. Two opposing slots 5 are provided at both ends of the receiving cavity 4. A baffle 6 is provided inside the receiving cavity 4, and a first guide groove 7 corresponding to the slots 5 is provided on the baffle 6. A first guide groove 7 is fixedly connected to the end of the first guide groove 7 away from the slots 5. A limiting ring 8 is provided, and a locking head 9 is slidably connected in the first guide groove 7. The end of the locking head 9 near the groove 5 is a slope, and the outer side of the slope is set close to the groove 5. A spring 10 is provided between the locking head 9 and the first limiting ring 8. A second guide groove 11 is provided axially in the locking head 9. A guide rod 12 is slidably connected in the second guide groove 11. A limiting mechanism 13 is provided between the guide rod 12 and the second guide groove 11 to prevent the guide rod 12 from disengaging from the second guide groove 11. A driving mechanism 14 is provided between the two guide rods 12 to drive the two guide rods 12 to extend and retract synchronously.

[0019] Specifically, when installing the baffle 6, the baffle 6 is pushed into the receiving cavity 4. At this time, the outer end of the side wall of the receiving cavity 4 contacts the inclined surface of the clamp 9 and pushes the clamp 9 back into the first guide groove 7 to overcome the elastic force of the spring 10. After the baffle 6 is fully in place, the first guide groove 7 is aligned with the clamping groove 5. The spring 10 releases its elastic force and pushes the clamp 9 into the clamping groove 5, thereby forming a mechanical interlock to fix the baffle 6. At the same time, the spring 10 provides axial clamping force to ensure that the clamp 9 does not loosen under the continuous vibration of the EMU and effectively prevents the baffle 6 from slipping off accidentally. When disassembling the baffle 6, the drive mechanism 14 drives the two guide rods 12 to retract inward. The guide rods 12 drive the clamp 9 to retract into the first guide groove 7 to overcome the elastic force of the spring 10 through the limiting mechanism 13. When the clamp 9 is completely disengaged from the clamping groove 5, the baffle 6 can be taken out, which facilitates the disassembly of the baffle 6.

[0020] In some embodiments, the limiting mechanism 13 includes a limiting block 131 fixedly connected to one end of the guide rod 12 near the slot 5. The limiting block 131 is slidably connected to the second guide groove 11, and a second limiting ring 132 is fixedly connected to one end of the second guide groove 11 away from the slot 5. Specifically, the limiting block 131 abuts against the second limiting ring 132. When the guide rod 12 retracts, the guide rod 12 can pull the card head 9 back into the first guide groove 7 through the limiting block 131 and the second limiting ring 132.

[0021] In some embodiments, the first guide groove 7 and the second guide groove 11 have rectangular cross sections. A cavity 15 is provided inside the baffle 6. The drive mechanism 14 includes a rotating shaft 141 rotatably connected to the outer surface of the baffle 6. A hand-tightening head 142 is coaxially fixed on the rotating shaft 141. One end of the rotating shaft 141 away from the hand-tightening head 142 extends into the cavity 15 and is connected to a transmission rod 144 via a transmission assembly 143. The transmission assembly 143 may be a worm gear transmission mechanism or a bevel gear transmission mechanism, etc. Fixed plates 145 located at both ends of the transmission rod 144 are fixedly connected inside the cavity 15. The transmission rod 144 is rotatably connected to the fixed plates 145. The transmission rod 144 is coaxially arranged with the guide rod 12. Both ends of the transmission rod 144 are coaxially fixed with internal threaded cylinders 146. The threads of the two internal threaded cylinders 146 are opposite in direction. The guide rod 12 extends to the outside of the second guide groove 11 and is threadedly connected to the internal threaded cylinders 146. Specifically, during use, the hand-tightening head 142 is rotated, and the hand-tightening head 142 drives the transmission rod 144 to rotate through the rotating shaft 141 and the transmission assembly 143. The transmission rod 144 drives the internal threaded cylinders 146 at both ends to rotate. Since the threads of the two internal threaded cylinders 146 are in opposite directions, the two guide rods 12 can be driven to extend and retract synchronously.

[0022] In some embodiments, a handle 16 is fixedly connected to the outside of the baffle 6, which facilitates the removal of the baffle 6.

[0023] The specific usage process of this utility model is as follows: When replacing the filter element 3, rotate the hand-tightening head 142. The hand-tightening head 142 drives the transmission rod 144 to rotate through the rotating shaft 141 and the transmission assembly 143. The transmission rod 144 drives the internal threaded cylinders 146 at both ends to rotate. The internal threaded cylinders 146 drive the two guide rods 12 to retract inward. The guide rods 12 drive the locking head 9 to retract into the first guide groove 7 over the elastic force of the spring 10 through the limiting block 131 and the second limiting ring 132. When the locking head 9 is completely disengaged from the locking groove 5, the handle 16 is pulled outward to stop the movement. Then, the old filter element 3 can be pulled out along the pull-out groove 2, and the new filter element 3 can be installed into the filter assembly along the pull-out groove 2. Finally, the hand-tightening head 142 is rotated in the opposite direction to reset the clamping head 9, and then the baffle 6 is pushed into the receiving cavity 4. At this time, the outer end of the side wall of the receiving cavity 4 contacts the inclined surface of the clamping head 9 and overcomes the elastic force of the spring 10 to push the clamping head 9 back into the first guide groove 7. After the baffle 6 is fully in place, the first guide groove 7 is aligned with the clamping groove 5, the spring 10 releases its elastic force, and pushes the clamping head 9 into the clamping groove 5, thereby automatically locking the baffle 6.

[0024] The above embodiments can be combined with each other.

[0025] The above embodiments are not intended to limit the shape, material, structure, etc. of this utility model in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of this utility model.

Claims

1. A filter assembly for a train air purification device, comprising a mounting frame installed in the train air purification device, characterized in that: A pull-out groove is provided on one side of the mounting frame, and a filter element is slidably connected in the pull-out groove. A receiving cavity is provided at the outlet of the pull-out groove on the mounting frame. Two oppositely arranged slots are provided at both ends of the receiving cavity. A baffle is provided in the receiving cavity, and a first guide groove corresponding to the slot is provided on the baffle. A first limiting ring is fixedly connected to the end of the first guide groove away from the slot. A clamping head is slidably connected in the first guide groove. The end of the clamping head near the slot is inclined, and the outer side of the inclined surface is set closer to the slot. A spring is provided between the clamping head and the first limiting ring. A second guide groove is provided axially in the clamping head. A guide rod is slidably connected in the second guide groove. A limiting mechanism is provided between the guide rod and the second guide groove. A driving mechanism is provided between the two guide rods to drive the two guide rods to extend and retract synchronously.

2. The filter assembly for an air purification device of a motor train unit according to claim 1, characterized in that: The limiting mechanism includes a limiting block fixedly connected to one end of the guide rod near the slot, the limiting block being slidably connected to the second guide groove, and a second limiting ring being fixedly connected to one end of the second guide groove away from the slot.

3. The filter assembly for an air purification device of a motor train unit according to claim 1, characterized in that: The first guide groove and the second guide groove have rectangular cross sections. A cavity is provided inside the baffle. The driving mechanism includes a rotating shaft rotatably connected to the outer surface of the baffle. A hand-tightening head is coaxially fixed on the rotating shaft. The end of the rotating shaft away from the hand-tightening head extends into the cavity and is connected to a transmission rod through a transmission assembly. The transmission rod and the guide rod are coaxially arranged. Both ends of the transmission rod are coaxially fixed with internal threaded cylinders. The threads of the two internal threaded cylinders have opposite directions. The guide rod extends to the outside of the second guide groove and is threadedly connected to the internal threaded cylinders.

4. The filter assembly for an air purification device of a motor train unit according to claim 3, characterized in that: The cavity is fixedly connected to fixed plates located at both ends of the transmission rod, and the transmission rod is rotatably connected to the fixed plates.

5. The filter assembly for an air purification device of a motor train unit according to claim 1, characterized in that: A handle is fixedly connected to the outside of the baffle.

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