Pit type filter convenient to replace

Abstract

The utility model relates to the technical field of pit type filters, in particular to a pit type filter convenient to replace, which comprises a pit body, a mounting plate positioned below a grating plate is fixedly connected in the pit body, and two mounting holes distributed left and right are formed in the upper end face of the mounting plate in a penetrating manner. A notch penetrates through the right end of the upper end surface of the mounting plate; the fixing state of the flat plate type filter by the fixing mechanism is relieved, then the flat plate type filter is taken out of the mounting hole, then the flat plate type filter prepared in advance is moved into the mounting hole again and fixed through the fixing mechanism, and then the replaced flat plate type filter is taken out of the pit body through the notch. And then a replacement worker climbs out of the pit body through the notch, then the rotating plate is rotated into the notch again, and then the two taken-down grating plates are reset, so that the flat plate type filter is conveniently and rapidly replaced, and the labor intensity of the worker is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of pit-type filters, in particular to a pit-type filter which is easy to replace. Background Art

[0002] The coating production line is divided into pre-treatment and post-treatment. Post-treatment processes generally include painting, drying, grinding, puttying, etc. Some special requirements also require the installation of a spray-drying room. For equipment such as grinding, puttying, and spray-drying rooms, exhaust ducts must be arranged on both sides of the equipment below zero plane to ensure the principle of upward delivery and downward exhaust. However, these equipment will generate air containing dust and large amounts of paint mist during operation. This requires the installation of filters in the pit exhaust duct to absorb these gases as much as possible to ensure the cleanliness of the air entering the subsequent exhaust system.

[0003] In the past, this type of filter was pulled out from above, and the replacement method was more troublesome because a grille plate was set at the zero plane of the pit. Each time the filter was replaced, the upper grille plate had to be completely moved away before it could be replaced. In addition, the conventional design of the grille plate weighed about 45kg, so replacing the filter was time-consuming and labor-intensive. Utility Model Content

[0004] The purpose of the utility model is to provide a pit type filter which is easy to replace and has the characteristics of being easy to replace the filter and reducing the labor intensity of personnel.

[0005] To achieve the above-mentioned object, the present invention provides the following technical solution: a pit filter that is easy to replace, comprising a pit body, a plurality of grille plates distributed left and right and abutting each other are placed on the upper end of the inner wall of the pit body, a mounting plate located below the grille plates is fixedly connected to the interior of the pit body, two mounting holes distributed left and right are formed through the upper end surface of the mounting plate, and a notch is formed through the right end of the upper end surface of the mounting plate;

[0006] A flat plate filter is provided inside the mounting hole, and a plurality of evenly distributed fixing mechanisms matching the flat plate filter are provided inside the mounting hole;

[0007] The left inner side wall of the notch is rotatably connected to a rotating plate which abuts against the inner wall of the pit body through a hinge seat.

[0008] In order to fix the flat-plate filter, as a preferred pit-type filter that is easy to replace according to the present invention, the fixing mechanism includes a groove opened on the inner side wall of the mounting hole, and the interior of the groove is slidably connected with a fixing block through a limit groove and a limit block, one end of the fixing block is set to an inclined structure, and a spring is fixedly connected between the fixing block and the groove, and the lower end surface of the mounting plate is penetrated by a sliding hole connected to the groove, and the lower end surface of the fixing block is fixedly connected to a connecting rod extending through the sliding hole to the bottom of the mounting plate.

[0009] In order to seal between the fixed plate and the flat-plate filter, as a preferred pit-type filter that is easy to replace in the present invention, the upper end of the inner wall of the mounting hole is fixedly connected with a fixed plate, and the lower end surface of the fixed plate is fixedly connected with a first sealing gasket that abuts against the flat-plate filter.

[0010] In order to seal between the rotating plate and the notch, as a preferred method of the utility model for a pit filter that is easy to replace, the outer wall of the rotating plate is fixedly connected to a second sealing gasket that abuts against the inner wall of the notch.

[0011] In order to limit the position of the rotating plate, as a preferred method of the utility model for a pit filter that is easy to replace, the upper end surface of the rotating plate is fixedly connected to two limiting plates distributed front and back and abutting against the mounting plate.

[0012] In order to facilitate the replacement personnel to go down to the bottom of the pit body, as a preferred method of the utility model for a pit filter that is easy to replace, a ladder is fixedly connected to the right side of the inner wall of the pit body.

[0013] In order to facilitate the entry of air and dust into the pit body, as a preferred method of the present invention for a pit filter that is easy to replace, an air inlet hole is opened through the left side of the inner wall of the pit body.

[0014] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0015] When replacing the flat-plate filter, remove the two rightmost grille plates, then pull the rotating plate upwards to rotate it out of the gap, thereby opening the gap. The replacement personnel then enter the pit body through the gap, and go down to the bottom of the pit body via a ladder, and then move the pre-prepared flat-plate filter through the gap into the pit body.

[0016] Then release the fixing state of the flat-plate filter by the fixing mechanism, and then take the flat-plate filter out of the mounting hole. Next, move the flat-plate filter prepared in advance into the mounting hole again and fix it through the fixing mechanism. Then take the replaced flat-plate filter out of the pit body through the gap. Then the replacement personnel climb out of the pit body through the gap. Next, rotate the rotating plate into the gap again, and then put the two removed grille plates back in place, so that the flat-plate filter can be replaced quickly and conveniently to reduce the labor intensity of the personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0018] Figure 2 This is a schematic diagram of the three-dimensional structure of the mounting plate of the utility model;

[0019] Figure 3 For this utility model Figure 1 The enlarged structural diagram of part a in the middle;

[0020] In the figure: 1. pit body; 2. grille plate; 3. mounting plate; 4. mounting hole; 5. notch; 6. flat filter; 7. rotating plate; 8. groove; 9. fixing block; 10. spring; 11. sliding hole; 12. connecting rod; 13. fixing plate; 14. first sealing gasket; 15. second sealing gasket; 16. limit plate; 17. ladder; 18. air inlet. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. In the description of the present invention, it should be understood that the orientation or position relationship indicated by the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, in the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0022] See also Figures 1 to 3A pit filter that is easy to replace includes a pit body 1. A plurality of grille plates 2 distributed left and right and abutting each other are placed on the upper end of the inner wall of the pit body 1. A mounting plate 3 located below the grille plates 2 is fixedly connected to the interior of the pit body 1. Two mounting holes 4 distributed left and right are formed through the upper end surface of the mounting plate 3. A notch 5 is formed through the right end of the upper end surface of the mounting plate 3.

[0023] A flat plate filter 6 is provided inside the mounting hole 4, and a plurality of evenly distributed fixing mechanisms that match the flat plate filter 6 are provided inside the mounting hole 4;

[0024] The left inner wall of the notch 5 is rotatably connected to a rotating plate 7 that abuts against the inner wall of the pit body 1 through a hinge seat.

[0025] In this embodiment, when replacing the flat-plate filter 6, the two rightmost grid plates 2 are removed, and then the rotating plate 7 is pulled upward to rotate the rotating plate 7 out of the notch 5, thereby opening the notch 5. Then, the replacement personnel enters the pit body 1 through the notch 5 and descends to the bottom of the pit body 1 via the ladder 17. Then, the pre-prepared flat-plate filter 6 is moved through the notch 5 into the pit body 1.

[0026] Then release the fixing state of the flat filter 6 by the fixing mechanism, and then take the flat filter 6 out of the mounting hole 4. Then, move the flat filter 6 prepared in advance into the mounting hole 4 again and fix it by the fixing mechanism. Then, take the replaced flat filter 6 out of the pit body 1 through the gap 5, and then the replacement personnel climb out of the pit body 1 through the gap 5. Then, rotate the rotating plate 7 into the gap 5 again, and then put the two removed grille plates 2 back in place, so as to facilitate and quickly replace the flat filter 6 to reduce the labor intensity of the personnel.

[0027] As a technical optimization solution of the present invention, the fixing mechanism includes a groove 8 opened on the inner side wall of the mounting hole 4, and the interior of the groove 8 is slidably connected to a fixing block 9 through a limit groove and a limit block. One end of the fixing block 9 is set to an inclined structure, and a spring 10 is fixedly connected between the fixing block 9 and the groove 8. A sliding hole 11 connected to the groove 8 is opened through the lower end surface of the mounting plate 3, and the lower end surface of the fixing block 9 is fixedly connected to a connecting rod 12 extending through the sliding hole 11 to the bottom of the mounting plate 3.

[0028] In this embodiment, when releasing the fixed state of the flat filter 6, the connecting rod 12 is pushed, and the connecting rod 12 drives the fixing block 9 to move in the groove 8, so that the fixing block 9 is removed from under the flat filter 6, thereby releasing the fixing state of the fixing block 9 supporting the flat filter 6;

[0029] When fixing the flat filter 6, the flat filter 6 is moved to the bottom of the mounting hole 4, and then the flat filter 6 is pushed upward. During the movement of the flat filter 6, since one end of the fixing block 9 is set as an inclined structure, the flat filter 6 squeezes the fixing block 9 into the groove 8 until the flat filter 6 moves to the top of the fixing block 9. The spring 10 rebounds and pushes the fixing block 9 to return to its original position, so that the fixing block 9 moves to the bottom of the flat filter 6, and the flat filter 6 is fixed by the fixing block 9.

[0030] The limiting groove and the limiting block can limit the fixing block 9 to prevent the fixing block 9 from moving out of the groove 8.

[0031] As a technical optimization solution of the present invention, a fixing plate 13 is fixedly connected to the upper end of the inner wall of the mounting hole 4 , and a first sealing gasket 14 abutting against the flat filter 6 is fixedly connected to the lower end surface of the fixing plate 13 .

[0032] In this embodiment, the fixing plate 13 can limit the flat-plate filter 6 , and the first sealing gasket 14 can seal between the fixing plate 13 and the flat-plate filter 6 .

[0033] As a technical optimization solution of the present invention, the outer wall of the rotating plate 7 is fixedly connected to a second sealing gasket 15 that abuts against the inner wall of the notch 5 .

[0034] In this embodiment, the second sealing gasket 15 can seal between the rotating plate 7 and the notch 5 .

[0035] As a technical optimization solution of the present invention, the upper end surface of the rotating plate 7 is fixedly connected to two limiting plates 16 distributed front and back and abutting against the mounting plate 3 .

[0036] In this embodiment, the limiting plate 16 can limit the rotating plate 7 to prevent the rotating plate 7 from rotating to the bottom of the notch 5.

[0037] As a technical optimization solution of the present invention, a ladder 17 is fixedly connected to the right side of the inner wall of the pit body 1.

[0038] In this embodiment, the ladder 17 facilitates the replacement personnel to go down to the bottom of the pit body 1.

[0039] As a technical optimization solution of the present invention, an air inlet hole 18 is opened through the left side of the inner wall of the pit body 1.

[0040] In this embodiment, the air inlet 18 facilitates the entry of air and dust into the pit body 1 .

[0041] Working principle: When replacing the flat-plate filter 6, remove the two rightmost grid plates 2, then pull the rotating plate 7 upward to rotate the rotating plate 7 out of the gap 5, and then open the gap 5. Then the replacement personnel enter the pit body 1 through the gap 5 and go down to the bottom of the pit body 1 via the ladder 17, and then move the pre-prepared flat-plate filter 6 through the gap 5 into the pit body 1;

[0042] Then push the connecting rod 12, which drives the fixing block 9 to move in the groove 8, so that the fixing block 9 is removed from under the flat filter 6, thereby releasing the fixing block 9 from supporting and fixing the flat filter 6, and then take the flat filter 6 out of the mounting hole 4;

[0043] Then, the flat filter 6 prepared in advance is moved to the bottom of the mounting hole 4, and then the flat filter 6 is pushed upward. During the movement of the flat filter 6, since one end of the fixing block 9 is set as a slope structure, the flat filter 6 squeezes the fixing block 9 into the groove 8 until the flat filter 6 moves to the top of the fixing block 9. The spring 10 rebounds and pushes the fixing block 9 to return to its original position, so that the fixing block 9 moves to the bottom of the flat filter 6, and then the flat filter 6 is fixed by the fixing block 9.

[0044] Then the replaced flat-plate filter 6 is taken out from the pit body 1 through the gap 5, and then the replacement personnel climbs out of the pit body 1 through the gap 5. Then, the rotating plate 7 is rotated into the gap 5 again, and then the two removed grille plates 2 are returned to their positions, thereby conveniently and quickly replacing the flat-plate filter 6 to reduce the labor intensity of the personnel.

[0045] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A pit filter that is easy to replace, comprising a pit body (1), wherein a plurality of grid plates (2) distributed left and right and abutting against each other are placed on the upper end of the inner wall of the pit body (1), characterized in that: The interior of the pit body (1) is fixedly connected to a mounting plate (3) located below the grid plate (2); the upper end surface of the mounting plate (3) is provided with two mounting holes (4) distributed left and right; and the right end of the upper end surface of the mounting plate (3) is provided with a notch (5); A flat plate filter (6) is provided inside the mounting hole (4), and a plurality of evenly distributed fixing mechanisms that match the flat plate filter (6) are provided inside the mounting hole (4); The left inner side wall of the notch (5) is rotatably connected to a rotating plate (7) that abuts against the inner wall of the pit body (1) via a hinge seat.

2. The easily replaceable pit filter according to claim 1, characterized in that: The fixing mechanism comprises a groove (8) provided on the inner side wall of the mounting hole (4); a fixing block (9) is slidably connected to the interior of the groove (8) through a limiting groove and a limiting block; one end of the fixing block (9) is provided with an inclined structure; a spring (10) is fixedly connected between the fixing block (9) and the groove (8); a sliding hole (11) communicating with the groove (8) is provided through the lower end surface of the mounting plate (3); and a connecting rod (12) is fixedly connected to the lower end surface of the fixing block (9) and extends through the sliding hole (11) to the bottom of the mounting plate (3).

3. The easily replaceable pit filter according to claim 1, characterized in that: A fixing plate (13) is fixedly connected to the upper end of the inner wall of the mounting hole (4), and a first sealing gasket (14) abutting against the flat-plate filter (6) is fixedly connected to the lower end surface of the fixing plate (13).

4. The easily replaceable pit filter according to claim 1, characterized in that: The outer wall of the rotating plate (7) is fixedly connected to a second sealing gasket (15) that abuts against the inner wall of the notch (5).

5. The easily replaceable pit filter according to claim 1, characterized in that: The upper end surface of the rotating plate (7) is fixedly connected to two limiting plates (16) distributed front and back and abutting against the mounting plate (3).

6. The easily replaceable pit filter according to claim 1, characterized in that: A ladder (17) is fixedly connected to the right side of the inner wall of the pit body (1).

7. The easily replaceable pit filter according to claim 1, characterized in that: An air inlet hole (18) is provided through the left side of the inner wall of the pit body (1).

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