Quick dismounting device for outer frame of filter screen of fan filter unit

Abstract

The utility model belongs to the technical field of fan filter units, and particularly relates to a quick detaching device for a filter screen outer frame of a fan filter unit, which comprises a plurality of groups of support components A and a plurality of groups of support components B. The support components A are positioned on the same side of a whole formed by a filter screen air box and the filter screen outer frame. The supporting assemblies A are located on one side of the whole formed by the filter screen air box and the filter screen outer frame, the supporting assemblies B are located on the other side of the whole formed by the filter screen air box and the filter screen outer frame, the supporting assemblies A are used for blocking the same side face of the filter screen outer frame and abut against the bottom of the filter screen outer frame, and the supporting assemblies B are used for abutting against the bottom of the filter screen outer frame. The supporting assembly A and the supporting assembly B which are located on the two opposite sides are arranged in a matched mode, the filter screen outer frame can be disassembled, updated and installed only from one side of a whole formed by the filter screen air box and the filter screen outer frame, operation does not need to be conducted in multiple directions, punching does not need to be conducted on the filter screen outer frame, operation is more convenient and faster, and the efficiency is improved. Maintenance efficiency is effectively improved, the structure is simple, and manufacturing and processing are easy.

Description

Technical Field

[0001] The utility model belongs to the technical field of fan filter units, in particular to a quick-disassembly device for a filter screen outer frame of a fan filter unit. Background Art

[0002] The fan filter unit (FFU) in the existing coating and developing machine and other equipment generally includes a filter box connected to the equipment air duct and a filter frame with a filter. When maintenance and cleaning are required, it is generally necessary to remove the filter frame and replace the filter.

[0003] At present, the filter frame and the filter air box are generally fixed by means of buckles set on multiple side surfaces of the filter frame and the overall periphery of the filter air box, or by punching holes in the filter frame and inserting bolts. This method requires operation from multiple directions. However, the space at the fixed position of the inner fan filter unit in equipment such as a coating and developing machine is relatively small. It is inconvenient and inefficient to reach out from multiple directions to operate, and it is even more cumbersome when drilling holes is required. Utility Model Content

[0004] In view of the above problems, the purpose of the utility model is to provide a quick-disassembly device for the filter screen outer frame of a fan filter unit.

[0005] The purpose of this utility model is achieved through the following technical solutions:

[0006] A quick-release device for a filter frame of a fan filter unit, comprising a plurality of groups of support assemblies A and a plurality of groups of support assemblies B, wherein each group of support assemblies A is located on the same side of a whole formed by a filter wind box and a filter frame, and each group of support assemblies B is located on the other side of a whole formed by a filter wind box and a filter frame, and each group of support assemblies A is used to block the same side of the filter frame and to abut against the bottom of the filter frame, and each group of support assemblies B is used to abut against the bottom of the filter frame.

[0007] Each group of the support assemblies A includes a rotating fixed block mounting seat and a rotating fixed block. The upper ends of the rotating fixed block mounting seats of each group of the support assemblies A are installed on the same side of the filter wind box, and the lower ends of the rotating fixed block mounting seats of each of the support assemblies A extend to the bottom of the filter wind box and are hinged to the rotating fixed blocks of the same group of support assemblies A. The rotating fixed blocks of each group of the support assemblies A directly rest against the bottom of the filter outer frame at the same time.

[0008] The rotating fixed blocks of each group of support assemblies A are L-shaped and divided into vertical sections and horizontal sections connected together. The vertical sections of the rotating fixed blocks of each group of support assemblies A are longer than the horizontal sections. The lower ends of the mounting seats of the rotating fixed blocks of each group of support assemblies A are respectively hinged to the joints between the vertical sections and the horizontal sections of the rotating fixed blocks of the same group of support assemblies A; the horizontal sections of the rotating fixed blocks of each group of support assemblies A are used to directly resist the bottom of the filter outer frame.

[0009] There are two groups of support assemblies A in total, and the upper ends of the rotating fixed block mounting seats of each group of support assemblies A are respectively installed at the corners of the same side of the filter air box, and the upper ends of the rotating fixed block mounting seats of each group of support assemblies A are respectively extended with corner limit retaining edges.

[0010] Each group of support components B includes an articulated seat, a spring sleeve, a pressure plate, a connecting rod, a spring, a limiting nut and a washer. The articulated seat of each group of support components B is installed on the other side of the filter wind box and is hinged to the upper part of the connecting rod of the same group of support components B. The pressure plate of each group of support components B is located below the filter outer frame and is used to resist the bottom of the filter outer frame. The spring sleeve of each group of support components B is installed on the pressure plate of the same group of support components B. The lower part of the connecting rod of each group of support components B passes through the inner cavity of the spring sleeve and the pressure plate of the same group of support components B in sequence. The limiting nut is threadedly provided on the part of the connecting rod of each group of support components B located in the inner cavity of the spring sleeve of the same group of support components B. The washer and spring are also sleeved on the part of the connecting rod of each group of support components B located in the inner cavity of the spring sleeve of the same group of support components B. The washer of each support component B is located on the upper side of the limiting nut of the same group of support components B. The lower end of the spring of each group of support components B abuts against the washer of the same group of support components B, and the upper end of the spring of each group of support components B abuts against the top surface of the inner cavity of the spring sleeve of the same group of support components B.

[0011] The support assemblies B are provided in at least two groups, and the axial center lines of the connecting rods of all groups of the support assemblies B are parallel to each other.

[0012] The lower part of the connecting rod of each group of the supporting assemblies B extends to the bottom of the pressure plate of the supporting assemblies B of the same group.

[0013] The pressure plate of each group of the support components B is provided with a rubber pad for directly pressing against the bottom of the filter screen outer frame.

[0014] The upper part of the connecting rod of each group of support components B is connected to an articulated part for being articulated with an articulated seat of the same group of support components B through threads.

[0015] The advantages and positive effects of the utility model are:

[0016] The utility model cooperates with the support assembly A and the support assembly B located on two opposite sides, so that the filter frame can be disassembled and updated and installed only from one side of the whole formed by the filter air box and the filter frame. There is no need to operate from multiple directions or to punch holes in the filter frame. The operation is more convenient and quick, and the maintenance efficiency is effectively improved. The structure is simple and the manufacturing and processing are easy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is one of the schematic diagrams of the use state of the utility model;

[0018] Figure 2 This is the second schematic diagram of the use state of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the support assembly A of the utility model;

[0020] Figure 4 It is a schematic cross-sectional structure diagram of the support assembly A of the utility model;

[0021] Figure 5 It is a three-dimensional structural schematic diagram of some parts of the support assembly B of the utility model;

[0022] Figure 6 It is a schematic cross-sectional structure diagram of some parts of the support assembly B of the present invention.

[0023] In the figure: 1 is a rotating fixed block mounting seat, 101 is a corner limiting rib, 2 is a rotating fixed block, 3 is a hinge seat, 4 is a spring sleeve, 5 is a pressure plate, 6 is a connecting rod, 7 is a spring, 8 is a limiting nut, 9 is a washer, 10 is a rubber pad, 11 is a hinge, 12 is a hinge shaft A; 001 is a filter air box, and 002 is a filter outer frame. DETAILED DESCRIPTION

[0024] The following is combined with Figure 1-6 The utility model is further described in detail.

[0025] A quick-release device for the outer frame of a filter screen of a fan filter unit, such as Figure 1-6 As shown, the present embodiment includes two groups of support assemblies A and two groups of support assemblies B, each group of support assemblies A is located on the left side of the whole formed by the filter wind box 001 and the filter outer frame 002, and each group of support assemblies B is located on the right side of the whole formed by the filter wind box 001 and the filter outer frame 002, that is, each group of support assemblies A and each group of support assemblies B are located on two opposite sides respectively, each group of support assemblies A is used to block the left side of the filter outer frame 002 and to resist the bottom of the filter outer frame 002, and each group of support assemblies B is used to resist the bottom of the filter outer frame 002.

[0026] Specifically, in the present embodiment, each group of support components A includes a rotating fixed block mounting seat 1 and a rotating fixed block 2. The upper end of the rotating fixed block mounting seat 1 of each group of support components A is mounted on the left side of the filter wind box 001 by screws, and the lower end of the rotating fixed block mounting seat 1 of each support component A extends to the bottom of the filter wind box 001 and is hinged to the rotating fixed block 2 of the same group of support components A. The rotating fixed block 2 of each group of support components A directly rests against the bottom of the filter outer frame 002 at the same time.

[0027] In this embodiment, the rotating fixed block 2 of each group of support components A is L-shaped and is divided into a vertical section and a horizontal section connected together. The vertical section of the rotating fixed block 2 of each group of support components A is longer than the horizontal section. The lower end of the rotating fixed block mounting seat 1 of each group of support components A is hinged to the connection between the vertical section and the horizontal section of the rotating fixed block 2 of the same group of support components A through a hinge shaft A12. The horizontal section of the rotating fixed block 2 of each group of support components A is used to directly resist the bottom of the filter outer frame 002.

[0028] In this embodiment, the upper ends of the rotating fixed block mounting seats 1 of each group of support components A are respectively installed at the corners of the left side of the filter wind box 001, and the upper ends of the rotating fixed block mounting seats 1 of each group of support components A are respectively extended with corner limiting ribs 101, wherein the corner limiting ribs 101 of one rotating fixed block mounting seat 1 can abut against the front side of the filter wind box 001, and the corner limiting ribs 101 of the other rotating fixed block mounting seat 1 can abut against the rear side of the filter wind box 001, which is convenient for positioning and installation, and ensures the support and stability of the filter outer frame 002.

[0029] Specifically, in this embodiment, each group of support components B includes an articulated seat 3, a spring sleeve 4, a pressure plate 5, a connecting rod 6, a spring 7, a limiting nut 8 and a washer 9. The articulated seat 3 of each group of support components B is installed on the right side surface of the filter air box 001 by screws, and is hinged to the upper part of the connecting rod 6 of the same group of support components B. The pressure plate 5 of each group of support components B is located below the filter outer frame 002 and is used to resist the bottom of the filter outer frame 002. The spring sleeve 4 of each group of support components B is installed on the pressure plate 5 of the same group of support components B by screws, and the lower part of the connecting rod 6 of each group of support components B passes through the same group of support components in sequence. The inner cavity of the spring sleeve 4 and the pressure plate 5 of each support assembly B, the connecting rod 6 of each group of support assemblies B is provided with a limit nut 8 through a thread on the part located in the inner cavity of the spring sleeve 4 of the same group of support assemblies B, and the connecting rod 6 of each group of support assemblies B is also sleeved with a washer 9 and a spring 7 on the part located in the inner cavity of the spring sleeve 4 of the same group of support assemblies B, and the washer 9 of each support assembly B is located on the upper side of the limit nut 8 of the same group of support assemblies B, and the lower end of the spring 7 of each group of support assemblies B abuts against the washer 9 of the same group of support assemblies B, and the upper end of the spring 7 of each group of support assemblies B abuts against the top surface of the inner cavity of the spring sleeve 4 of the same group of support assemblies B. In this embodiment, the axial center lines of the connecting rods 6 of all groups of support assemblies B are parallel to each other, and the lower part of the connecting rod 6 of each group of support assemblies B extends to the bottom of the pressure plate 5 of the same group of support assemblies B, respectively, to facilitate grasping and pulling.

[0030] In this embodiment, a rubber pad 10 for directly pressing against the bottom of the filter outer frame 002 is provided on the pressure plate 5 of each group of support components B through screws to prevent the pressure plate 5 from directly causing friction damage with the filter outer frame 002, and also to avoid direct contact between the filter outer frame 002 and the relatively smooth pressure plate 5 and reduce relative sliding.

[0031] In this embodiment, the upper part of the connecting rod 6 of each group of support components B is connected by a thread with an articulated member 11 for articulating with the articulated seat 3 of the same group of support components B, which is convenient for disassembly and assembly. Each articulated member 11 is articulated with the corresponding articulated seat 3 through an articulated shaft B, and the axial center line of each articulated shaft B is parallel to the axial center line of each articulated shaft A12, ensuring that the filter outer frame 002 is pressed and installed stably.

[0032] Working principle:

[0033] When it is necessary to remove the original filter outer frame 002, directly pull down each spring sleeve 4 from the right side of the whole formed by the filter air box 001 and the filter outer frame 002, so that the spring 7 is compressed and the pressure plates 5 are separated from the bottom of the filter outer frame 002, and then drive the whole formed by each spring sleeve 4, the pressure plate 5 and the connecting rod 6 to rotate upward around the corresponding hinge seat 3, and then the original filter outer frame 002 can be pulled out in the lower right direction to complete the disassembly.

[0034] When replacing and installing a new filter outer frame 002, put the new filter outer frame 002 in from right to left from the bottom of the filter air box 001, so that the left side of the new filter outer frame 002 first abuts against the vertical section of each rotating fixed block 2 and is pushed to the left. After the left side of the new filter outer frame 002 abuts against the rotating fixed block mounting seat 1, at this time, each rotating fixed block 2 directly abuts against the bottom of the filter outer frame 002 at the same time, and generates an upward supporting force for the filter outer frame 002 to jam the filter outer frame 002; drive the whole composed of each spring sleeve 4, the pressure plate 5 and the connecting rod 6 to rotate downward around the corresponding hinge seat 3, and pull down each spring sleeve 4 respectively to compress the spring 7 and make each pressure plate 5 return to the bottom of the filter outer frame 002 respectively, then release each spring sleeve 4, the spring 7 drives the spring sleeve 4 to reset upward, and each pressure plate 5 abuts against the bottom of the filter outer frame 002 and presses it, completing the update and installation of the filter outer frame 002.

Claims

1. A quick-release device for a filter screen frame of a fan filter unit, characterized in that: It comprises a plurality of groups of support assemblies A and a plurality of groups of support assemblies B, wherein each group of support assemblies A is located on the same side of the whole formed by the filter wind box (001) and the filter outer frame (002), and each group of support assemblies B is located on the other side of the whole formed by the filter wind box (001) and the filter outer frame (002), and each group of support assemblies A is used to block the same side of the filter outer frame (002) and to abut the bottom of the filter outer frame (002), and each group of support assemblies B is used to abut the bottom of the filter outer frame (002).

2. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 1, characterized in that: Each group of the support components A comprises a rotating fixed block mounting seat (1) and a rotating fixed block (2); the upper end of the rotating fixed block mounting seat (1) of each group of the support components A is mounted on the same side of the filter wind box (001); the lower end of the rotating fixed block mounting seat (1) of each group of the support components A extends to the bottom of the filter wind box (001) and is hinged to the rotating fixed block (2) of the same group of the support components A; and the rotating fixed block (2) of each group of the support components A directly abuts against the bottom of the filter outer frame (002).

3. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 2, characterized in that: The rotating fixed blocks (2) of each group of the support assemblies A are L-shaped and are divided into a vertical section and a horizontal section connected together. The vertical section of the rotating fixed blocks (2) of each group of the support assemblies A is longer than the horizontal section. The lower end of the rotating fixed block mounting seat (1) of each group of the support assemblies A is respectively hinged to the joint between the vertical section and the horizontal section of the rotating fixed blocks (2) of the same group of the support assemblies A; the horizontal section of the rotating fixed blocks (2) of each group of the support assemblies A is used to directly abut the bottom of the filter outer frame (002).

4. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 2, characterized in that: The support assembly A is provided in two groups, and the upper end of the rotating fixed block mounting seat (1) of each group of the support assembly A is respectively mounted at the corner of the same side of the filter air box (001), and the upper end of the rotating fixed block mounting seat (1) of each group of the support assembly A is respectively extended with a corner limit retaining edge (101).

5. The quick-release device for the filter screen outer frame of a fan filter unit according to claim 1, characterized in that: Each group of the support components B comprises an articulated seat (3), a spring sleeve (4), a pressure plate (5), a connecting rod (6), a spring (7), a limiting nut (8) and a washer (9); the articulated seat (3) of each group of the support components B is installed on the other side of the filter air box (001) and is hinged to the upper part of the connecting rod (6) of the same group of the support components B; the pressure plate (5) of each group of the support components B is located below the filter outer frame (002) and is used to resist the bottom of the filter outer frame (002); the spring sleeve (4) of each group of the support components B is installed on the pressure plate (5) of the same group of the support components B; the lower part of the connecting rod (6) of each group of the support components B passes through the spring sleeve (4) of the same group of the support components B in sequence; ), the connecting rod (6) of each group of support components B is provided with the limiting nut (8) through a thread on the part located in the inner cavity of the spring sleeve (4) of the same group of support components B, and the connecting rod (6) of each group of support components B is also sleeved with the washer (9) and the spring (7) on the part located in the inner cavity of the spring sleeve (4) of the same group of support components B, and the washer (9) of each support component B is located on the upper side of the limiting nut (8) of the same group of support components B, the lower end of the spring (7) of each group of support components B abuts against the washer (9) of the same group of support components B, and the upper end of the spring (7) of each group of support components B abuts against the top surface of the inner cavity of the spring sleeve (4) of the same group of support components B.

6. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 5, characterized in that: The support assemblies B are provided in at least two groups, and the axial center lines of the connecting rods (6) of all groups of the support assemblies B are parallel to each other.

7. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 5, characterized in that: The lower part of the connecting rod (6) of each group of support assemblies B extends to the bottom of the pressure plate (5) of the same group of support assemblies B.

8. The quick-release device for the filter screen outer frame of a fan filter unit according to claim 5, characterized in that: A rubber pad (10) for directly abutting against the bottom of the filter screen outer frame (002) is provided on the pressure plate (5) of each group of the support components B.

9. A quick-release device for a filter screen outer frame of a fan filter unit according to claim 5, characterized in that: The upper part of the connecting rod (6) of each group of the supporting components B is connected to a hinged part (11) through a thread for being hinged to the hinged seat (3) of the supporting components B of the same group.

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