Air filtering device for factory building

Abstract

The utility model relates to an air filtering device for a factory building, and belongs to the technical field of factory building air filtering, the air filtering device comprises a filtering box, a filtering net and an elastic locking assembly, the filtering box is provided with an air inlet pipe, and the filtering net is fixed in the air inlet pipe through the elastic locking assembly; the elastic locking assembly is used for fixing a clamping piece of the filter screen, a reset spring arranged on the side wall, abutting against the inner wall of the air inlet pipe, of the clamping piece and a long locking column connected with the end, deviating from the clamping piece, of the reset spring, and a locking groove used for locking the long locking column is formed in the inner wall of the air inlet pipe. The device has the effect that a worker can conveniently clean the filter screen.

Description

Technical Field

[0001] This application relates to the field of factory air filtration technology, and in particular to an air filtration device for factory use. Background Technology

[0002] An air filter is an air filtration device, generally used in clean workshops, clean factories, laboratories and clean rooms, or for dust prevention in electronic, mechanical and communication equipment. Currently, there are five types of air filters: pre-filters, medium-efficiency filters, high-efficiency filters, sub-high-efficiency filters and high-efficiency filters. Common air filters include a housing, filter screen, air inlet and air outlet. The filter screen filters the air entering the housing, thereby reducing the dust content of the air entering the workshop. With the continuous development of industrial technology, the structure and function of air filters are being gradually improved to provide a better workshop production environment.

[0003] In related technologies, such as Chinese utility model patent with publication number CN216367066U, a bag-type air filtration device is disclosed, including a filter barrel and an air inlet barrel. The outer walls of the filter barrel and the air inlet barrel are welded with connecting rings at their respective ends, and the connecting rings are connected to each other by bolts. A reverse structure is installed on one side of the outer wall of the filter barrel, and the inner wall of the filter barrel is welded with equally spaced limiting blocks. A dust collection component is placed on the top outer wall of the limiting blocks. An exhaust pipe is connected to the center of the bottom end of the filter barrel, and an air inlet pipe is connected to one side of the outer wall of the air inlet barrel. A filter screen is sleeved in the air inlet pipe.

[0004] Regarding the aforementioned technologies, the following defects have been found: gas enters the filter canister through the air inlet pipe, and the gas usually contains dust. Therefore, after the filter device has been used for a long time, the filter screen fitted in the air inlet pipe may become clogged with dust. Since the filter screen is fitted in the air inlet pipe, it is inconvenient for staff to clean the filter screen when necessary. Utility Model Content

[0005] To facilitate the cleaning of the filter screen by staff, this application provides an air filtration device for factory buildings.

[0006] This application provides an air filtration device for factory buildings, which adopts the following technical solution:

[0007] An air filtration device for a factory includes a filter box, a filter screen, and an elastic locking assembly. The filter box has an air inlet pipe, and the filter screen is fixed inside the air inlet pipe by the elastic locking assembly. The elastic locking assembly is used to fix a clamping member for the filter screen, a return spring located on one side wall of the clamping member that abuts against the inner wall of the air inlet pipe, and a locking post connected to one end of the return spring away from the clamping member. The inner wall of the air inlet pipe has a locking groove for locking the locking post, and the locking groove is opened along the direction of the air inlet pipe opening and extends through it.

[0008] By adopting the above technical solution, the filter screen is fixed in the clamping member. A return spring is provided on the side wall of the clamping member that abuts against the inner wall of the air intake pipe. The end of the return spring that is away from the clamping member is connected to the locking post. A locking groove is provided on the inner wall of the air intake pipe to lock the locking post. When the filter screen needs to be cleaned, simply press the locking post towards the return spring to disengage it from the locking groove. The locking post is then no longer locked to the locking groove. Pull the locking post towards the air intake pipe opening to pull the filter screen out of the air intake pipe for cleaning. This is beneficial for operators to easily remove the filter screen from the air intake pipe for cleaning when it becomes clogged.

[0009] Optionally, the clamping member includes a first clamping ring and a second clamping ring, the filter screen is disposed between the first clamping ring and the second clamping ring, the first clamping ring has a plurality of equidistantly distributed snap-fit ​​blocks on one end face facing the second clamping ring, and the second clamping ring has a plurality of equidistantly distributed snap-fit ​​grooves that cooperate with the snap-fit ​​blocks for snap-fitting on one end face facing the first clamping ring.

[0010] By adopting the above technical solution, a plurality of equidistantly distributed snap-fit ​​blocks are provided on the end face of the first clamping ring facing the second clamping ring, and a plurality of equidistantly distributed snap-fit ​​grooves are provided on the end face of the second clamping ring facing the first clamping ring to engage with the snap-fit ​​blocks. The filter screen is snapped and fixed between the first clamping ring and the second clamping ring through the engagement of the snap-fit ​​grooves and the snap-fit ​​blocks, so that the filter screen can be firmly fixed in the air intake pipe under the action of the first clamping ring and the second clamping ring. When it is necessary to remove the filter screen, it can be removed along with the first clamping ring and the second clamping ring.

[0011] Optionally, a fixing block is provided at the side wall where the first clamping ring abuts against the inner wall of the air intake pipe. The fixing block abuts against the locking column. The inner wall of the air intake pipe is provided with a fixing groove for fixing the fixing block. The fixing groove is connected to the locking groove.

[0012] By adopting the above technical solution, a fixing block is provided on the side wall where the first clamping ring abuts against the inner wall of the air intake pipe. The fixing block abuts against the locking column. A fixing groove is provided on the inner wall of the air intake pipe for fixing the fixing block. The fixing groove is connected to the locking groove, so that the first clamping ring, the second clamping ring and the filter screen are not easy to detach from the air intake pipe opening under the cooperation of the fixing block and the fixing.

[0013] Optionally, the first clamping ring is provided with a mounting groove, the reset spring and the locking post are disposed in the mounting groove, the bottom of the mounting groove is provided with a T-shaped sliding groove, and one end face of the locking post facing the bottom of the mounting groove is provided with a T-shaped sliding post that cooperates with the T-shaped sliding groove for sliding.

[0014] By adopting the above technical solution, an installation groove is provided at the first clamping ring, the reset spring and the locking column are set in the installation groove, a T-shaped slide groove is provided at the bottom of the installation groove, and a T-shaped slide post is provided on the end face of the locking column facing the bottom of the installation groove to slide in cooperation with the T-shaped slide groove, so that the locking column can not easily get out of the installation groove through the cooperation of the T-shaped slide post and the T-shaped slide groove.

[0015] Optionally, when the locking column pops out of the mounting groove and locks with the locking groove under the action of the reset spring, the T-shaped sliding column does not disengage from the T-shaped sliding groove.

[0016] By adopting the above technical solution, when the locking column pops out of the mounting groove and locks with the locking groove under the action of the return spring, the T-shaped sliding column does not disengage from the T-shaped sliding groove. This makes it easy for the locking column to return to the mounting groove when it wants to disengage from the locking groove, with the cooperation of the T-shaped sliding column and the T-shaped sliding groove.

[0017] Optionally, the mounting groove has a chamfered edge on the groove wall facing the pop-out direction of the locking column.

[0018] By adopting the above technical solution, a chamfer is provided at the edge of the groove wall facing the direction of the locking column popping out, so that when the locking column is pressed back into the groove, it is not easy for it to get stuck at the edge of the groove.

[0019] Optionally, a telescopic plate is provided at one end of the mounting groove connected to the reset spring. The telescopic plate extends along the pop-out direction of the reset spring, and the end of the telescopic plate opposite to the end connected to the reset spring is connected to the locking column.

[0020] By adopting the above technical solution, a telescopic plate is provided at the end face of the mounting groove connected to the return spring. The telescopic plate extends along the pop-out direction of the return spring. The end of the telescopic plate opposite to the end connected to the return spring is connected to the locking column, so that when the gas enters the air inlet pipe, the dust in the gas is not easy to enter the mounting groove under the action of the telescopic plate.

[0021] Optionally, a limiting ring is provided on the inner wall of the air intake pipe, and one end face of the limiting ring facing the air intake pipe opening abuts against the second clamping ring.

[0022] By adopting the above technical solution, a limiting ring is set on the inner wall of the air intake pipe. The end face of the limiting ring facing the air intake pipe opening abuts against the second clamping ring, so that the filter screen can be placed in a suitable position inside the air intake pipe, and the filter screen is not easy to fall into the filter box with the gas when the air intake pipe enters.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. The filter screen is fixed in the clamping part. A return spring is provided on the side wall of the clamping part that abuts against the inner wall of the air intake pipe. The end of the return spring that is away from the clamping part is connected to the locking post. A locking groove is provided on the inner wall of the air intake pipe to lock the locking post. When the filter screen needs to be cleaned, simply press the locking post towards the return spring to disengage the locking post from the locking groove. The locking post is no longer locked to the locking groove. Pull the locking post towards the air intake pipe opening to pull the filter screen out of the air intake pipe for cleaning. This is beneficial for operators to easily remove the filter screen from the air intake pipe for cleaning when the filter screen is clogged.

[0025] 2. Several equally spaced snap-fit ​​blocks are provided on the end face of the first clamping ring facing the second clamping ring, and several equally spaced snap-fit ​​grooves are provided on the end face of the second clamping ring facing the first clamping ring to engage with the snap-fit ​​blocks. The filter screen is fixed between the first and second clamping rings by engaging with the snap-fit ​​grooves and snap-fit ​​blocks, so that the filter screen can be firmly fixed in the air intake pipe under the action of the first and second clamping rings. When the filter screen needs to be removed, it can be removed along with the first and second clamping rings.

[0026] 3. A fixing block is provided on the side wall where the first clamping ring abuts against the inner wall of the air intake pipe. The fixing block abuts against the locking column. A fixing groove is provided on the inner wall of the air intake pipe for fixing the fixing block. The fixing groove is connected to the locking groove, so that the first clamping ring, the second clamping ring and the filter screen are not easily detached from the air intake pipe opening when the fixing block and the fixing are in cooperation. Attached Figure Description

[0027] Figure 1 This is a partial exploded structural diagram of the overall structure in an embodiment of this application.

[0028] Figure 2 yes Figure 1 A schematic diagram of the structure of part A in the middle.

[0029] Figure 3 This is an exploded structural diagram of the elastic locking component in the embodiments of this application.

[0030] Figure 4 yes Figure 3 A schematic diagram of the structure of section B.

[0031] Figure 5 yes Figure 3 A schematic diagram of the structure of section C.

[0032] Explanation of reference numerals in the attached drawings: 1. Filter box; 11. Air inlet pipe; 111. Limiting ring; 112. Locking groove; 113. Fixing groove; 2. Filter screen; 3. Elastic locking assembly; 31. Clamping element; 311. First clamping ring; 3112. Snap-fit ​​block; 312. Second clamping ring; 3121. Snap-fit ​​groove; 313. Mounting groove; 3131. Opening; 3132. T-shaped slide; 3133. Chamfer; 3134. Telescopic plate; 314. Fixing block; 32. Return spring; 33. Locking column; 331. T-shaped slide column; 332. Handle block. Detailed Implementation

[0033] The following is in conjunction with the appendix Figure 1-5 This application will be described in further detail.

[0034] This application discloses an air filtration device for use in a factory. (Refer to...) Figure 1 An air filtration device for factory buildings includes a filter box 1, a filter screen 2, and an elastic locking assembly 3. An air inlet pipe 11 is integrally formed on the side wall of the filter box 1. The filter screen 2 can be quickly installed on the air inlet pipe 11 or quickly removed from the air inlet pipe 11 by means of the elastic locking assembly 3.

[0035] Reference Figure 1 and Figure 2A limiting ring 111 is integrally formed inside the intake pipe 11. The end face of the limiting ring 111 facing the intake pipe 11 abuts against the elastic locking component 3 on which the filter screen 2 is fixed. A locking groove 112 that cooperates with the elastic locking component 3 is provided on the inner side wall of the intake pipe 11. The locking groove 112 is opened along the direction of the intake pipe 11 and passes through it. A fixing groove 113 is provided at the end of the locking groove 112 away from the intake pipe 11. The fixing groove 113 is connected to the locking groove 112, and the fixing groove 113 and the locking groove 112 are in an "L" shape.

[0036] Reference Figure 1 , Figure 2 , Figure 3 and Figure 4 The elastic locking assembly 3 includes a clamping member 31, a return spring 32, and a locking post 33. The locking post 33 is used to cooperate with the locking groove 112. The clamping member 31 includes a first clamping ring 311 and a second clamping ring 312. A plurality of equally spaced snap-fit ​​blocks 3112 are integrally formed on the end face of the first clamping ring 311 facing the second clamping ring 312. A plurality of equally spaced snap-fit ​​grooves 3121 are provided on the end face of the second clamping ring 312 facing the first clamping ring 311. The snap-fit ​​blocks 3112 and the snap-fit ​​grooves 3121 are snapped together one by one. The filter screen 2 is fixed between the first clamping ring 311 and the second clamping ring 312 by the cooperation of the snap-fit ​​blocks 3112 and the snap-fit ​​grooves 3121. The end face of the second clamping ring 312 facing away from the filter screen 2 abuts against the limiting ring 111.

[0037] Reference Figure 1 , Figure 3 and Figure 4 In this embodiment, based on the size of the first clamping ring 311 and the actual situation, it is preferable to provide four equally spaced snap-fit ​​blocks 3112 on the first clamping ring 311. Based on the size of the second clamping ring 312 and the actual situation, it is preferable to provide four equally spaced snap-fit ​​grooves 3121 on the second clamping ring 312 to cooperate with the snap-fit ​​blocks 3112 on the first clamping ring 311 for snap-fit. The part of the filter screen 2 aligned with the snap-fit ​​groove 3121 is squeezed into the snap-fit ​​groove 3121 under the action of the snap-fit ​​block 3112, so that the filter screen 2 can be firmly fixed in the first clamping ring 311 and the second clamping ring 312.

[0038] Reference Figure 2 , Figure 3 and Figure 4An installation groove 313 is provided on the outer wall of the first clamping ring 311 aligned with the locking groove 112. An opening 3131 is provided on the installation groove 313 facing the inner wall of the air intake pipe 11. The return spring 32 and the locking post 33 are both provided in the installation groove 313. One end of the return spring 32 is welded to the groove wall of the installation groove 313 away from the opening 3131. The end of the return spring 32 away from the groove wall of the installation groove 313 is welded to the locking post 33, so that the locking post 33 can pop out into the locking groove 112 in the direction of the opening 3131 for locking.

[0039] Reference Figure 2 , Figure 4 and Figure 5 A T-shaped sliding groove 3132 is provided at the bottom of the mounting groove 313. A T-shaped sliding post 331 is integrally formed on the end face of the locking post 33 facing the bottom of the mounting groove 313, which can slide in the T-shaped sliding groove 3132. This allows the locking post 33 to move in the mounting groove 313, and when the locking post 33 is ejected into the locking groove 112 under the action of the return spring 32, the T-shaped sliding post 331 does not disengage from the T-shaped sliding groove 3132.

[0040] Reference Figure 2 , Figure 3 , Figure 4 ,and Figure 5 The locking column 33 is flush with the edge of the air intake pipe 11 at one end away from the T-shaped sliding column 331. A handle block 332 is integrally formed at the end of the locking column 33 away from the T-shaped sliding column 331, so that the operator can control the locking column 33 by means of the handle block 332. At the same time, a fixing block 314 is integrally formed on the outer wall of the first clamping ring 311 aligned with the fixing groove 113, so that the fixing block 314 cooperates with the fixing groove 113 for fixation, and the fixing block 314 abuts against the locking column 33.

[0041] Reference Figure 3 and Figure 4 To prevent jamming when the locking post 33 disengages from the locking groove 112 and returns to the mounting groove 313, a chamfer 3133 is integrally formed at the edge of the mounting groove 313 where the opening 3131 is located. To prevent dust in the gas from entering the mounting groove 313, a telescopic plate 3134 is welded to the groove wall away from the opening 3131 of the mounting groove 313. The telescopic plate 3134 extends towards the opening 3131 and retracts towards the groove wall away from the opening 3131. The end of the telescopic plate 3134 that is welded to the groove wall of the mounting groove 313 is welded to the locking post 33.

[0042] The implementation principle of an air filtration device for a factory in this application embodiment is as follows: When the filter screen 2 needs to be cleaned, the operator uses the handle block 332 to press the locking column 33 towards the return spring 32, so that the locking column 33 disengages from the locking groove 112 and the lock is released. At this time, the locking column 33 drives the first clamping ring 311 to rotate, so that the fixing block 314 disengages from the fixing groove 113 into the locking groove 112. Then, the locking column 33 can be pulled to remove the filter screen 2 from the air inlet pipe 11 for cleaning.

[0043] After the filter screen 2 is cleaned, align the fixing block 314 with the locking groove 112 and slide it into the locking groove 112. At the same time, the locking column 33 is pressed into the mounting groove 313 and abuts against the inner wall of the air intake pipe 11. When the fixing block 314 moves to the point where the second clamping ring 312 abuts against the limiting ring 111, the operator drives the first clamping ring 311 to rotate in the other direction through the locking column 33, so that the fixing block 314 rotates into the fixing groove 113. At this time, the locking column 33 is aligned with the locking groove 112. After the operator releases the locking column 33, the locking column 33 cooperates with the locking groove 112 under the action of the return spring 32 to lock, that is, fix the filter screen 2 in the air intake pipe 11.

[0044] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An air filtration device for factory buildings, characterized in that: The filter includes a filter box (1), a filter screen (2), and an elastic locking assembly (3). The filter box (1) is provided with an air inlet pipe (11). The filter screen (2) is fixed inside the air inlet pipe (11) by the elastic locking assembly (3). The elastic locking assembly (3) is used to fix a clamping member (31) for the filter screen (2), a return spring (32) located on one side wall of the clamping member (31) that abuts against the inner wall of the air inlet pipe (11), and a locking column (33) connected to one end of the return spring (32) away from the clamping member (31). The inner wall of the air inlet pipe (11) is provided with a locking groove (112) for locking the locking column (33).

2. An air filtration device for a factory as described in claim 1, characterized in that: The clamping member (31) includes a first clamping ring (311) and a second clamping ring (312). The filter screen (2) is disposed between the first clamping ring (311) and the second clamping ring (312). The first clamping ring (311) has a plurality of equally spaced snap-fit ​​blocks (3112) on one end face facing the second clamping ring (312). The second clamping ring (312) has a plurality of equally spaced snap-fit ​​grooves (3121) that cooperate with the snap-fit ​​blocks (3112) for snap-fitting on one end face facing the first clamping ring (311).

3. An air filtration device for a factory according to claim 2, characterized in that: A fixing block (314) is provided on the side wall where the first clamping ring (311) abuts against the inner wall of the air intake pipe (11). The fixing block (314) abuts against the locking column (33). The inner wall of the air intake pipe (11) is provided with a fixing groove (113) for fixing the fixing block (314). The fixing groove (113) is connected to the locking groove (112).

4. An air filtration device for a factory as described in claim 3, characterized in that: The first clamping ring (311) is provided with a mounting groove (313). The reset spring (32) and the locking column (33) are located in the mounting groove (313). The bottom of the mounting groove (313) is provided with a T-shaped sliding groove (3132). The locking column (33) has a T-shaped sliding post (331) on one end face facing the bottom of the mounting groove (313) that cooperates with the T-shaped sliding groove (3132) to slide.

5. An air filtration device for a factory according to claim 4, characterized in that: When the locking column (33) pops out of the mounting groove (313) and locks with the locking groove (112) under the action of the return spring (32), the T-shaped sliding column (331) does not disengage from the T-shaped sliding groove (3132).

6. An air filtration device for a factory according to claim 5, characterized in that: The mounting groove (313) has a chamfer (3133) at the edge of the groove wall facing the pop-out direction of the locking column (33).

7. An air filtration device for a factory according to claim 6, characterized in that: A telescopic plate (3134) is provided at one end face of the mounting groove (313) connected to the reset spring (32). The telescopic plate (3134) extends along the pop-out direction of the reset spring (32). The end of the telescopic plate (3134) opposite to the end connected to the reset spring (32) is connected to the locking column (33).

8. An air filtration device for a factory according to claim 2, characterized in that: A limiting ring (111) is provided on the inner wall of the air intake pipe (11), and the end face of the limiting ring (111) facing the opening of the air intake pipe (11) abuts against the second clamping ring (312).

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