A quick-release filter screen holder for edible mushroom storage
The quick-release filter holder design solves the problems of difficult, time-consuming, and loose/misaligned traditional filter removal, enabling rapid filter replacement and safe, efficient operation while reducing labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- ZHEJIANG QINGFENG MODERN AGRICULTURAL EQUIPMENT CO LTD
- Filing Date
- 2025-08-01
- Publication Date
- 2026-06-30
AI Technical Summary
The traditional method of installing filter screens in edible mushroom warehouses has problems such as difficult disassembly, long time consumption, easy loosening and misalignment, and high labor costs, which affect equipment safety and production efficiency.
The filter holder is designed for quick removal and includes an outer frame, a filter frame, a pin assembly, and a bendable filter baffle. The filter can be easily installed and removed via a slide rail and pin. The outer frame is pre-fixed to the equipment's return air inlet, the filter frame can slide, and the pin can be easily locked.
It enables quick assembly and disassembly of the filter screen, improves operational safety and production efficiency, reduces labor costs, and avoids problems such as loosening and misalignment of the fixing points.
Smart Images

Figure CN224422317U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of mushroom cultivation technology, and in particular to a quick-release filter screen support for edible mushroom storage rooms. Background Technology
[0002] In traditional refrigeration equipment for edible mushroom cultivation, purification air handling units are typically required to meet the purification standards of certain fungi. However, the air inlets of these units and evaporative coolers are easily affected by fungal spores, leading to fan blockage and shutdown, and ultimately equipment damage. To address this issue, existing technologies incorporate filters to prevent spores from entering the fan. However, traditional filters are often installed using bolts or snap-fit methods, which present the following problems:
[0003] 1. The air handling unit and air cooler are located at a high place, and disassembly requires tools, which is dangerous and time-consuming.
[0004] 2. Repeated disassembly and reassembly can easily cause the fixing points to loosen, making it impossible to replace the filter screen in the end.
[0005] 3. After cleaning, the device is prone to misalignment when repositioned, affecting the sealing performance.
[0006] 4. Large factories have hundreds of mushroom houses. Frequent filter replacements consume huge amounts of labor costs and seriously disrupt the production rhythm. Summary of the Invention
[0007] To address the aforementioned problems, the purpose of this invention is to provide a quick-release filter screen bracket for edible mushroom storage rooms, which allows for easy assembly and disassembly of the filter screen.
[0008] A quick-release filter screen holder for edible mushroom storage rooms includes:
[0009] The outer frame is fixed to the return air vent. The outer frame is an open structure with an opening on one side. Slide rails are symmetrically provided on the inner sides of the two arms at the opening end of the outer frame.
[0010] The filter frame is sized to fit inside the outer frame and is slidably connected to the slide rail. The filter frame slides between a first position and a second position. In the first position, the filter frame is completely inside the outer frame, and in the second position, the filter frame moves from the open end of the outer frame to the outside of the outer frame.
[0011] A latch assembly, disposed on the outer frame, includes a latch seat and a latch, the latch switching between a locked position and an unlocked position; when the filter frame is in the first position and the latch is in the locked position, the latch restricts the filter frame to the first position; when the latch is in the unlocked position, the position lock of the filter frame is released;
[0012] The filter screen baffle, set on the filter screen frame, is a bendable structure. It is fixed by bending it to one side to cover the edge of the filter screen, and the filter screen is released by bending it in the opposite direction.
[0013] The filter screen is placed on the filter screen frame and positioned by the filter screen baffle.
[0014] Preferably, at least one filter screen baffle is provided on each of the two sides of the filter screen frame that are symmetrically arranged.
[0015] Preferably, the outer frame is provided with a baffle, which covers the edge of the filter screen from the outside when the filter screen frame and the filter screen on it enter the outer frame; a movable gap is left between the edge of the baffle and the filter screen.
[0016] Preferably, the pin holder is provided with a locking groove, and the pin is provided with a locking part corresponding to the locking groove; in the first position, the pin can rotate about its axis to make the locking part engage or disengage from the locking groove.
[0017] Preferably, the pin assembly is located at the open end of the outer frame. After installation, the open end is located at the bottom. When the filter frame is in the first position and the pin is in the locked position, the pin abuts against the lower end of the filter frame.
[0018] Preferably, the slide rail is a telescopic guide rail, which allows the filter screen frame to slide horizontally along the inner side of the outer frame to a fully extended or retracted state.
[0019] Preferably, a limiting component is provided between the filter frame and the slide rail to limit the maximum sliding distance of the filter frame.
[0020] Preferably, the outer frame is fixed to the equipment return air outlet at the four corners by connectors.
[0021] This utility model, by adopting the above-described solution, divides the frame into an outer frame and a filter screen frame. When the filter screen needs to be replaced, it is not necessary to remove the outer frame and the filter screen frame. Simply pull out the pin, pull down the filter screen frame, and bend the filter screen baffle to remove the filter screen. Then, place the filter screen into the filter screen frame, bend the filter screen, push the filter screen frame back in, and then insert the pin again. Disassembly and assembly are simple and do not require tools. Furthermore, the above structure avoids the problem of loosening at the fixing points due to repeated disassembly and assembly, ensuring structural reliability. With the above configuration, after the bracket outer frame is pre-fixed to the equipment's return air vent, the open end of the outer frame is installed downwards. This configuration allows the filter screen bracket to slide down from the open end to a lower position for filter screen replacement, simplifying operations at higher positions and improving operational safety. Attached Figure Description
[0022] Figure 1 This is a schematic diagram of the filter frame in the second position of this application;
[0023] Figure 2This is a schematic diagram of the filter frame in the first position;
[0024] Figure 3 This is a schematic diagram showing the locking part of the pin located in the locking groove.
[0025] Figure label: Detailed Implementation
[0026] The embodiments of this utility model are described in detail below.
[0027] like Figure 1-2 As shown, this embodiment provides a quick-release filter screen bracket for edible mushroom storage, comprising:
[0028] The outer frame 1 is fixed to the return air vent. The outer frame 1 is an open structure with an opening on one side. Slide rails 6 are symmetrically provided on the inner sides of the two arms at the opening end of the outer frame 1.
[0029] The filter frame 2 is sized to fit inside the outer frame 1 and is slidably connected to the slide rail 6. The filter frame 2 slides between a first position and a second position. In the first position, the filter frame 2 is completely inside the outer frame 1. In the second position, the filter frame 2 moves from the open end of the outer frame 1 to the outside of the outer frame 1.
[0030] A latch assembly, disposed on the outer frame 1, includes a latch seat 4 and a latch 3, wherein the latch 3 switches between a locked position and an unlocked position; when the filter frame 2 is in the first position and the latch is in the locked position, the latch 3 restricts the filter frame 2 to the first position; when the latch is in the unlocked position, the position lock on the filter frame 2 is released; in a specific embodiment, in the unlocked position, the latch 3 may be connected to the latch seat 4 but the position restriction on the filter frame 2 is released; in other optional embodiments, in the unlocked position, the latch 3 may also be pulled out from the latch seat 4.
[0031] The filter screen baffle 5 is set on the filter screen frame 2. It is a bendable structure. It is fixed by bending it to one side to cover the edge of the filter screen, and the filter screen is released by bending it in the opposite direction.
[0032] The filter screen 7 is placed on the filter screen frame 2 and positioned by the filter screen baffle 5.
[0033] In this embodiment, the outer frame 1 is fixed to the equipment's return air vent at its four corners using self-tapping screws and other connectors, and the air is filtered through the filter screen 7 on it. After the initial installation is completed, subsequent replacement of the filter screen 7 does not require removing the outer frame 1.
[0034] like Figure 1As shown, the filter frame 2 is connected to the outer frame 1 via a slide rail 6 and can slide up and down along the outer frame 1. Preferably, the filter frame 2 maintains a constant connection with the outer frame 1 during its up-and-down sliding, so that when the filter needs to be replaced, it is not necessary to remove the filter frame 2 from the outer frame 1, reducing the operational complexity caused by loose parts and the risk of part loss. To achieve the above, in a preferred embodiment, the slide rail 6 is a telescopic guide rail, allowing the filter frame 2 to slide horizontally along the inner side of the outer frame 1 to a fully extended or retracted state. In other optional embodiments, the two filter frames 2 are slidably connected to the slide rail 6 via sliding grooves in the slide rail 6. Both are provided with limiting components that limit the maximum sliding distance of the filter frame 2. When the filter frame 2 slides down to the maximum distance, it is limited by the limiting components, which can be matching limiting protrusions and limiting grooves.
[0035] In this embodiment, the filter screen baffle 5 is a bendable metal clip or similar structure, possessing sufficient strength to hold the filter screen on the filter screen frame 2, and can be bent open to remove / install the filter screen. At least one filter screen baffle 5 is provided on each of the two symmetrically arranged sides of the filter screen frame 2 to ensure the compressive strength of the filter screen plate.
[0036] Furthermore, such as Figure 1 and Figure 2 The outer frame 1 is provided with a baffle. When the filter screen frame 2 and the filter screen on it enter the outer frame 1, the baffle covers the edge of the filter screen from the outside. The baffle provides a limit for the filter screen in the inward and outward directions. There is a movement gap between the edge of the baffle and the filter screen to avoid the baffle from hindering the movement of the filter screen frame 2.
[0037] In this embodiment, such as Figure 3 As shown, the pin holder 4 is provided with a locking groove 41, and the pin 3 is provided with a locking part 31 corresponding to the locking groove 41. In the locked position, the pin can rotate around its axis to allow the locking part 31 to engage or disengage from the locking groove 41. After the pin moves to the locked position, engaging the locking part 31 into the locking groove 41 can lock the position of the pin; disengaging the locking part 31 from the locking groove 41 can release the lock on the pin, at which point the pin can move to the unlocked position. The pin assembly is located at the open end of the outer frame 1. After installation, the open end is located at the bottom. When the filter frame 2 is in the first position and the pin is in the locked position, the pin abuts against the lower end of the filter frame 2, and the opening direction of the locking groove is perpendicular to the opening direction of the outer frame 1. Figure 3 As shown, the filter frame 2 presses down on the pin under its own weight, which can press the locking part of the pin into the locking groove. The structure is simple and reliable.
[0038] The working process of the stent in this embodiment is as follows:
[0039] Before using the quick-release filter bracket, first fix the four corners of the bracket's outer frame to the air vent of the air handling unit or evaporator using self-tapping screws or other methods.
[0040] When the filter screen needs to be replaced after a long period of use or when it is clogged, first pull out the pins 3 from the pin seats 4 on both sides to release the pins from restricting the position of the filter screen frame. Then, drag the filter screen frame 2 along the slide rail 6 to pull it out. Figure 1 When the filter frame 2 is pulled to the bottom of the slide rail 6, the filter screen baffle 5 that fixes the filter screen 7 can be removed, the filter screen 7 can be taken off, and a new filter screen can be placed in place. After the new filter screen is placed in the filter frame 2, first remove the filter screen baffle 5 to fix the filter screen 7 securely. Then, push the filter frame 2 into the bracket outer frame 1 along the slide rail, insert the pin 3 to fix the filter frame 2, and then push the pin 3 into the pin seat 4 to fix the pin 3, so as to ensure that the overall operation is stable and secure. Figure 2 .
[0041] This embodiment divides the frame into an outer frame and a filter screen frame. When the filter screen needs to be replaced, it is not necessary to remove the outer frame and the filter screen frame. The filter screen can be removed in three simple steps: pulling out the pin, pulling down the filter screen frame, and bending the filter screen baffle. Then, place the filter screen into the filter screen frame, bend the filter screen, push the filter screen frame back in, and then insert the pin back in. The disassembly and assembly are simple and do not require tools.
[0042] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.
Claims
1. A quick-release filter screen support for a mushroom house, characterized by, include: The outer frame is fixed to the return air vent. The outer frame is an open structure with an opening on one side. Slide rails are symmetrically provided on the inner sides of the two arms on both sides of the open end of the outer frame. The filter screen frame is sized to fit inside the outer frame and is slidably connected to the slide rail. The filter screen frame slides between a first position and a second position. In the first position, the filter screen frame is completely inside the outer frame. In the second position, the filter screen frame moves from the open end of the outer frame to the outside of the outer frame. A latch assembly, disposed on the outer frame, includes a latch seat and a latch, the latch switching between a locked position and an unlocked position; when the filter frame is in the first position and the latch is in the locked position, the latch restricts the filter frame to the first position; when the latch is in the unlocked position, the position lock of the filter frame is released; The filter screen baffle, set on the filter screen frame, is a bendable structure. It is fixed by bending it to one side to cover the edge of the filter screen, and the filter screen is released by bending it in the opposite direction. The filter screen is placed on the filter screen frame and positioned by the filter screen baffle.
2. The quick-release filter screen support for a mushroom house of claim 1, wherein, At least one filter screen baffle is provided on each of the two sides of the filter screen frame that are symmetrically arranged.
3. The quick-release filter screen support for a mushroom house of claim 1, wherein, The outer frame is provided with a baffle. When the filter screen frame and the filter screen on it enter the outer frame, the baffle covers the edge of the filter screen from the outside; a movable gap is left between the edge of the baffle and the filter screen.
4. The quick-release filter screen support for a mushroom house of claim 1, wherein, The pin holder is provided with a locking groove, and the pin is provided with a locking part corresponding to the locking groove; in the locked position, the pin can rotate around its axis to make the locking part engage or disengage from the locking groove.
5. A quick-release filter screen support for an edible mushroom storage room according to claim 1 or 4, characterized in that, The pin assembly is located at the open end of the outer frame. After installation, the open end is located at the bottom. The opening direction of the locking groove is perpendicular to the opening direction of the outer frame. When the filter screen is in the first position and the pin is in the locked position, the pin abuts against the lower end of the filter screen.
6. A quick-release filter screen support for an edible mushroom storage room according to claim 1, characterized in that, The slide rail is a telescopic guide rail, which allows the filter screen frame to slide horizontally along the inner side of the outer frame to a fully extended or retracted state.
7. A quick-release filter screen support for an edible mushroom storage room according to claim 1, characterized in that, A limiting component is provided between the filter frame and the slide rail to limit the maximum sliding distance of the filter frame.
8. A quick-release filter screen support for an edible mushroom storage room according to claim 1, characterized in that, The outer frame is fixed to the equipment's return air vent at the four corners by connectors.