Rail transit air conditioner mixed air filter screen structure

Abstract

The utility model discloses a rail transit air conditioner mixed wind filter screen structure, include: filter screen piece, the filter screen piece has filter screen and the support frame of connecting in the filter screen periphery, the connecting frame has the filter surface for filtering particulate matter, the connecting frame can establish in the air intake and outlet of carriage, and the particulate matter of passing through the air intake and outlet is filtered through the filter surface, the fixed groove of sliding connection filter screen piece is established to the inside of the frame of connecting frame, and the plug -in groove that is communicated with fixed groove is passed through one side of connecting frame, the filter screen piece can be inserted into fixed groove along plug -in groove and slide, the surface of filter screen piece constitutes the filter surface, the elastic locking assembly is connected on the connecting frame and is close to the plug -in groove place, and the locking assembly includes: the rotating part and the fixed part of hinged with rotating part, and rotating part and fixed part are connected through elastic part between, for the elastic support rotating part is attached in the opening of the bottom of connecting frame close to plug -in groove, to block the connecting frame from moving out from plug -in groove.

Description

Technical Field

[0001] This utility model relates to the field of rail transit air conditioning technology, and in particular to a rail transit air conditioning mixed air filter structure. Background Technology

[0002] Air conditioning units in rail transit vehicles (such as suspended rail trains and subways) are typically mounted on the roof, close to the track beams or other fixed structures, resulting in minimal vertical clearance between the filter inlet and the surrounding space. Traditional integrated filters often exceed this clearance, requiring train hoisting or complex operations for disassembly, leading to high costs and low efficiency. Mixed air filters typically require replacement through narrow maintenance ports, but traditional filter frames are rigid, integral structures that cannot easily pass through these limited openings, resulting in long maintenance cycles and high labor intensity.

[0003] Therefore, within a limited space, there is an urgent need for a hybrid air filter structure for rail transit air conditioning to solve the above problems. Utility Model Content

[0004] This utility model provides a mixed air filter structure for rail transit air conditioning to solve the above problems.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] A mixed air filter structure for rail transit air conditioning includes:

[0007] A filter element having a filter screen and a support frame connected to the periphery of the filter screen;

[0008] A connecting frame having a filter surface for filtering particulate matter, the connecting frame being installed at the air inlet and outlet of the vehicle compartment, filtering particulate matter passing through the air inlet and outlet through the filter surface;

[0009] The inner side of the frame of the connecting frame is provided with a fixing groove for sliding connection of the filter screen, and an insertion groove that penetrates one side of the connecting frame and communicates with the fixing groove. The filter screen can be inserted into the fixing groove along the insertion groove and slide. The surface of the filter screen forms the filter surface.

[0010] An elastic locking assembly is attached to a connecting frame and near the insertion slot. The locking assembly includes a rotating part and a fixed part hinged to the rotating part. The rotating part and the fixed part are connected by an elastic element to elastically support the rotating part against the bottom of the connecting frame near the opening of the insertion slot, so as to prevent the connecting frame from moving out of the insertion slot.

[0011] In one embodiment, the fixing part is fixed to the connecting frame, the rotating part and the fixing part are rotatably connected by a rotating shaft, the elastic element is a coil spring, the elastic element is sleeved on the rotating shaft, and one end abuts against the rotating part and the other end abuts against the fixing part.

[0012] In one embodiment, the rotating part is a sheet-like component, and a limiting edge and a push-pull edge are formed on the rotating part. When the rotating part covers the outer opening of the insertion groove, the limiting edge is used to limit the position of the filter element in the thickness direction, and the push-pull edge extends toward the side away from the insertion groove.

[0013] In one embodiment, a reinforcement is also included, which connects the top edge of the connecting frame and the bottom edge with a plug slot.

[0014] In one embodiment, the width of the insertion slot is greater than or equal to the width of the connection frame.

[0015] Compared with the prior art, the beneficial effects of this utility model include at least the following:

[0016] The connecting frame fixed to the top of the carriage has been improved by having an opening at the bottom with a resilient locking component that provides elastic support. When replacing the filter, the rotating part is manually turned to rotate it a certain angle away from the opening of the insertion slot. The filter to be replaced is then inserted along the insertion slot. Releasing the rotating part causes it to remain firmly attached to the bottom of the connecting frame under the elastic force, preventing the filter from detaching. This design facilitates filter replacement within a limited space, reduces maintenance cycles, and lowers labor intensity. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the filter structure in use according to an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the horizontally placed connecting frame and filter screen of this utility model embodiment;

[0019] Figure 3 This is a schematic diagram of the connecting frame structure according to an embodiment of the present utility model;

[0020] Figure 4 This is a schematic diagram of the filter element structure according to an embodiment of the present utility model;

[0021] Figure 5 This is a schematic diagram of the elastic locking component structure according to an embodiment of the present invention.

[0022] In the diagram: 1. Filter screen; 2. Connecting frame; 21. Fixing groove; 22. Insertion groove; 3. Elastic locking assembly; 31. Rotating part; 311. Limiting edge; 312. Push-pull edge; 32. Fixing part; 33. Elastic part; 4. Reinforcing part. Detailed Implementation

[0023] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided to make the present invention more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and therefore repeated descriptions of them will be omitted.

[0024] The terms used to describe position and direction in this utility model are illustrated with the accompanying drawings, but changes can be made as needed, and all such changes are included within the scope of protection of this utility model.

[0025] Reference Figure 1-5 This utility model provides a mixed air filter structure for rail transit air conditioning, including: filter element 1, connecting frame 2 and elastic locking component 3.

[0026] The filter element 1 has a filter screen and a support frame connected to the periphery of the filter screen. The filter element 1 is generally rectangular, and the interior of the filter element 1 contains filter cotton. The main body material of the connecting frame 2 can be non-flexible materials such as metal or plastic.

[0027] The connecting frame 2 has a filter surface for filtering particulate matter. The connecting frame 2 can be installed at the air inlet and outlet of the car body, and the filter surface filters particulate matter passing through the air inlet and outlet. The connecting frame 2 is used to connect to the interior of the rail car body, wherein the filter surface of the connecting frame 2 is set perpendicular to the air inlet of the air conditioner. After the gas inside the connecting frame 2 is filtered by the filter screen corresponding to the filter surface, dust and particulate matter are removed.

[0028] The inner side of the frame of the connecting frame 2 is provided with a fixing groove 21 for sliding connection of the filter element 1, and a fixing groove 21 that penetrates one side of the connecting frame 2 and communicates with the fixing groove 21. The filter element 1 can be inserted into the fixing groove 21 and slide along it. The surface of the filter element 1 forms the filter surface. The connecting frame 2 is a square frame, and the fixing groove 21 is a groove opened on the inner side of the connecting frame 2. The filter element 1 can slide in the fixing groove 21. The fixing groove 21 is located at the bottom of the frame of the connecting frame 2 and penetrates both the inner and outer sides.

[0029] The elastic locking assembly 3 is connected to the connecting frame 2 and located near the fixing groove 21. The locking assembly includes a rotating part 31 and a fixing part 32 hinged to the rotating part 31. The rotating part 31 and the fixing part 32 are connected by an elastic element 33, which elastically supports the rotating part 31 against the bottom of the connecting frame 2 near the opening of the fixing groove 21, preventing the connecting frame 2 from moving out of the fixing groove 21. The elastic locking assembly 3 mainly consists of two parts: the first part is the rotating part 31, and the second part is the fixing part 32. The fixing part 32 is bolted to the surface of the connecting frame 2, and the rotating part 31 and the fixing part 32 are fixed by a rotatable connection. Under the elastic support of the elastic element 33, in the absence of external force, the rotating part 31 adheres to the bottom of the connecting frame 2. The elastic force provided by the elastic element 33 is greater than the weight of the filter element 1 itself, keeping the filter element 1 within the fixing groove 21. When disassembly or replacement is required, manually flip the rotating part 31 so that it no longer abuts against the bottom opening of the fixed groove 21, and manually pull out the filter screen 1. This makes it easy for operators to pull out the filter screen. In a narrow and limited space, one person can replace multiple filter screens, reducing maintenance costs.

[0030] In one embodiment, the fixing part 32 is fixed to the connecting frame 2, and the rotating part 31 and the fixing part 32 are rotatably connected by a rotating shaft. The elastic element 33 is a coil spring, which is sleeved on the rotating shaft, with one end abutting the rotating part 31 and the other end abutting the fixing part 32. The rotating part 31 and the fixing part 32 are connected by a hinge. In this embodiment, the rotating part 31 and the fixing part 32 can be two parts of a hinge, and the coil spring includes a part sleeved on the shaft and two protruding end parts. The two ends of the coil spring elastically abut against the surfaces of the rotating part 31 and the fixing part 32, keeping the rotating part 31 and the fixing part 32 in a separated state. The rotating part 31 is attached to the bottom of the connecting frame 2. The elastic locking assembly 3 is integrated into the bottom of the connecting frame 2, reducing the space occupied and facilitating manual adjustment of the rotating part 31 by workers, simplifying the disassembly and insertion of the filter element 1, and improving work efficiency.

[0031] In one embodiment, the rotating part 31 is a sheet-like component, with a limiting edge 311 and a push-pull edge 312 formed on it. When the rotating part 31 covers the outer opening of the fixing groove 21, the limiting edge 311 is used to restrict the position of the filter element 1 in the thickness direction, and the push-pull edge 312 extends toward the side away from the fixing groove 21. The limiting edge 311 is formed on the edge of the rotating part 31, which can prevent the filter element 1 from swaying in the thickness direction, improving the stability of the filter element 1 after assembly. Additionally, the push-pull edge 312 facilitates manual manipulation and rotation of the rotating part 31 by the worker.

[0032] In one embodiment, a reinforcing member 4 is further included, which connects the top edge of the connecting frame 2 and the bottom edge with the fixing groove 21. The reinforcing member 4 can be made of rigid material. The top of the reinforcing member 4 is welded to the top of the connecting frame 2, and the bottom edge is welded to the bottom edge, which can significantly improve the overall strength of the connecting frame 2 and prevent the connecting frame 2 from deforming or being damaged.

[0033] In one embodiment, the width of the fixing groove 21 is greater than or equal to the width of the connecting frame 2. The width of the fixing groove 21 must at least match the width of the connecting frame 2 to allow the connecting frame 2 to be smoothly inserted into the fixing groove 21. Simultaneously, the width of the fixing groove 21 can also be greater than or equal to the width of the connecting frame 2.

[0034] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and alterations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention, and all such changes should fall within the protection scope of the claims of the present invention.

Claims

1. A hybrid air filter structure for rail transit air conditioning, characterized in that, include: A filter element having a filter screen and a support frame connected to the periphery of the filter screen; A connecting frame having a filter surface for filtering particulate matter, the connecting frame being installed at the air inlet and outlet of the vehicle compartment, filtering particulate matter passing through the air inlet and outlet through the filter surface; The inner side of the frame of the connecting frame is provided with a fixing groove for sliding connection of the filter screen, and an insertion groove that penetrates one side of the connecting frame and communicates with the fixing groove. The filter screen can be inserted into the fixing groove along the insertion groove and slide. The surface of the filter screen forms the filter surface. An elastic locking assembly is attached to a connecting frame and near the insertion slot. The locking assembly includes a rotating part and a fixed part hinged to the rotating part. The rotating part and the fixed part are connected by an elastic element to elastically support the rotating part against the bottom of the connecting frame near the opening of the insertion slot, so as to prevent the connecting frame from moving out of the insertion slot.

2. The rail transit air conditioning mixed air filter structure according to claim 1, characterized in that, The fixing part is fixed to the connecting frame, the rotating part and the fixing part are rotatably connected by a rotating shaft, the elastic element is a coil spring, the elastic element is sleeved on the rotating shaft, and one end abuts against the rotating part and the other end abuts against the fixing part.

3. The rail transit air conditioning mixed air filter structure according to claim 2, characterized in that, The rotating part is a sheet-like component, and a limiting edge and a push-pull edge are formed on the rotating part. When the rotating part covers the outer opening of the insertion groove, the limiting edge is used to limit the position of the filter element in the thickness direction, and the push-pull edge extends toward the side away from the insertion groove.

4. The rail transit air conditioning mixed air filter structure according to claim 3, characterized in that, It also includes a reinforcing member that connects the top edge of the connecting frame to the bottom edge with a slot.

5. The rail transit air conditioning mixed air filter structure according to claim 1, characterized in that, The width of the insertion slot is greater than or equal to the width of the connecting frame.

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