A ventilation duct with high cleaning efficiency

Abstract

The present application relates to a ventilation duct with high cleaning efficiency, which is related to the field of building air conditioning. The duct includes a duct body, a filter screen fixedly connected to the duct body, a cleaning mechanism mounted on the duct body, the cleaning mechanism including a brush assembly that contacts the filter screen, and a drive assembly that drives the brush assembly along the filter screen. The brush assembly includes two brush rollers that clamp the filter screen, the brush assembly and the filter screen are detachably connected, and a control assembly is connected to the duct body to drive the brush assembly out of the duct body. The present application enhances the efficiency of the ventilation effect within the duct body.

Description

Technical Field

[0001] The present application relates to the field of building air conditioning, and in particular to a ventilation duct with high cleaning efficiency. Background Art

[0002] Ventilation ducts are metal or composite pipes used in ventilation and air-conditioning projects in industrial and civil buildings. They are a kind of municipal infrastructure designed to allow air circulation and reduce the concentration of harmful gases.

[0003] To improve air quality in ventilation ducts, filters are often installed. After prolonged use, dust accumulates on the filters. To improve ventilation efficiency, filters often need to be replaced. To do this, remove the bolts connecting the filter to the duct, separate the filter from the duct, install a clean filter, and reconnect the filter to the duct by tightening the bolts.

[0004] However, the operation of improving the ventilation effect in the ventilation duct by removing and replacing the filter is relatively cumbersome, that is, the work efficiency of improving the ventilation effect in the ventilation duct is low. Summary of the Invention

[0005] In order to enhance the efficiency of the ventilation effect within the pipe body, the present application provides a ventilation pipe with high cleaning efficiency.

[0006] The present application provides a ventilation duct with high cleaning efficiency using the following technical solution:

[0007] A ventilation duct with high cleaning efficiency includes a duct body, the duct body is fixedly connected to a filter screen, a cleaning mechanism is installed on the duct body, the cleaning mechanism includes a brush assembly that contacts the filter screen, and also includes a driving assembly that drives the brush assembly to move along the filter screen, the brush assembly includes two brush rollers that clamp the filter screen, the brush assembly is detachably connected to the filter screen, and the duct body is connected to a regulating assembly that drives the brush assembly to separate from the interior of the duct body.

[0008] By adopting the above technical solution, when the filter needs to be cleaned, the drive assembly drives the brush assembly to reciprocate along the filter. At this time, the brush roller in the brush assembly cleans the dust on the filter, and the cleaned dust falls into the inside of the pipe body. After cleaning, the pipe body is controlled to start ventilation. At this time, the dust in the pipe body is discharged along the air outlet of the pipe body, and the staff collects the dust at the air outlet of the pipe body. When the brush roller needs to be cleaned or replaced, the brush assembly can be driven out of the pipe body through the control assembly. Regularly driving the brush assembly to clean the filter is simple to operate and enhances the work efficiency of improving the ventilation effect in the pipe body.

[0009] Preferably, the brush assembly includes two support rods, a long gap is provided between the filter screen and the inner bottom wall of the pipe body, a support block is inserted in the long gap, the drive assembly is connected to the support block, the lower end of each support rod is mounted on the support block, and a long groove is provided on one side of the two support rods close to each other, a brush roller corresponds to one long groove and the brush roller is rotatably connected in the long groove.

[0010] By adopting the above technical solution, the driving assembly drives the support block to move along the filter screen, and the movement of the support block drives the two support rods to move. The movement of the support rods can drive the brush roller to rotate to clean the filter screen. The brush roller is placed in the long groove to reduce the occurrence of dust generated when the brush roller cleans the filter screen.

[0011] Preferably, the upper and lower ends of each support rod are rotatably connected to rollers, and two guide grooves are provided on a side wall of the filter screen close to each support rod, and each roller is rollingly engaged with the corresponding guide groove.

[0012] By adopting the above technical solution, when the support rod drives the brush roller to move, each roller rolls along the corresponding guide groove, and the guide groove provides a guide for the movement of the roller, support rod and brush roller.

[0013] Preferably, the bottom wall of the pipe body is provided with two first through holes and two second through holes, the driving assembly includes two driving belts, each driving belt passes through one of the first through holes and one of the second through holes and is in a closed loop state, a handle is provided at the lower outer side of the pipe body, the handle is installed between the two driving belts, each driving belt is fixedly connected to a connecting block at a position inside the pipe body, a clamping groove is provided on the upper surface of each connecting block, and a clamping rod is respectively installed on the two side walls of the support block, and each clamping rod is clamped with the corresponding clamping groove.

[0014] By adopting the above technical solution, the handle is pulled back and forth along the length of the drive belt. The movement of the handle drives the drive belt to rotate, and the rotation of the drive belt drives the connecting block to move along the length of the filter. The movement of the connecting block drives the connecting rod and the support block through the connecting groove. The movement of the support block drives the support rod and the brush roller to move along the length of the filter, thus facilitating the cleaning of the filter.

[0015] Preferably, the bottom wall of the long gap is provided with a mounting opening, and the regulating component includes a mounting cover plugged into the mounting opening, the upper surface of the mounting cover is fixedly connected to a dovetail block, the lower surface of the support block is provided with a dovetail groove, the dovetail groove passes through the support block horizontally, the dovetail block and the dovetail groove are slidably plugged into, each of the clamping rods is hinged to the support block, a torsion spring 1 is installed between the clamping rod and the support block, the lower end of each of the support rods is hinged to the support block, and a torsion spring 2 is installed between the support rod and the support block.

[0016] By employing this technical solution, the mounting cover is pulled away from the pipe body, gradually moving it away from the mounting opening. During this process, the mounting cover gradually moves the support block and mounting rod downward. The bottom wall of each engaging slot contacts the engaging rod, pushing it toward the support block. Simultaneously, the rollers are forced to rotate each supporting rod away from the filter until each roller disengages its corresponding guide slot. The mounting cover is then pulled downward until the brush assembly is free from the pipe body, making it easier to clean or replace the brush assembly.

[0017] Preferably, both ends of the dovetail groove are flared.

[0018] By adopting the above technical solution, when the support block moves along the long gap, the dovetail block on the mounting cover moves relative to the support block until the dovetail block is inserted into the dovetail groove from one end. The flared ends of the dovetail groove facilitate the dovetail block to be inserted into the dovetail groove more easily.

[0019] Preferably, a long groove is provided on the bottom wall of the long gap, and an interception assembly is installed in the pipe body. The interception assembly includes an interception plate plugged into the long groove, and a plurality of springs are fixedly connected between the interception plate and the bottom wall of the long groove. The upper surface of the interception plate contacts the bottom surface of the filter screen, and both ends of the interception plate are provided with inclined surfaces that gradually tilt toward each other from bottom to top.

[0020] By adopting the above technical solution, the interception plate is arranged in the elongated gap and contacts the bottom surface of the filter screen, which can play a certain role in limiting the flow of impurities through the elongated gap along with the wind flow, facilitating the interception of dust and improving the efficiency of the filter screen in intercepting impurities. In addition, when the support block moves along the elongated gap, the support block contacts the inclined surface, thereby pushing the interception plate into the elongated groove, facilitating the smooth movement of the support block in the elongated gap.

[0021] Preferably, a plurality of mesh holes are provided on the intercepting plate.

[0022] By adopting the above technical solution, the air circulation at the filter screen is facilitated, and the interception plate can intercept impurities.

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

[0024] 1. Regularly drive the brush assembly to clean the filter screen through the driving assembly. It is easy to operate and enhances the efficiency of improving the ventilation effect in the pipeline body.

[0025] 2. Easy to clean or replace the brush assembly;

[0026] 3. When the support block is located at one end of the long gap, the interception plate contacts the bottom surface of the filter to intercept dust, thereby improving the efficiency of the filter in intercepting impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic diagram of the internal structure of the pipeline according to an embodiment of the present application.

[0028] Figure 2 It is a structural schematic diagram of a brush assembly according to an embodiment of the present application.

[0029] Figure 3 This is a schematic diagram of the connection structure between the support block and the support rod according to an embodiment of the present application.

[0030] Explanation of the accompanying drawings: 1. Pipe body; 11. First through hole; 12. Second through hole; 13. Mounting port; 14. Long groove; 2. Filter screen; 21. Long gap; 22. Guide groove; 3. Cleaning mechanism; 31. Brush assembly; 311. Support block; 3111. Dovetail groove; 3112. Transition groove; 312. Support rod; 3121. Long groove; 313. Brush roller; 32. Drive assembly; 321. Drive belt; 322. Connecting block; 3221. Snap-in groove; 323. Snap-in rod; 324. Handle; 4. Adjustment assembly; 41. Mounting cover; 42. Dovetail block; 43. Torsion spring one; 44. Roller; 45. Torsion spring two; 5. Interception assembly; 51. Interception plate; 511. Inclined surface; 52. Spring. DETAILED DESCRIPTION

[0031] The following is combined with Figure 1-Figure 3 This application is described in further detail.

[0032] The embodiment of the present application discloses a ventilation duct with high cleaning efficiency. Figure 1 The ventilation duct includes a duct body 1, a filter screen 2 is fixedly connected to the duct body 1, and a long gap 21 is provided between the bottom surface of the filter screen 2 and the inner bottom wall of the duct body 1. A cleaning mechanism 3 for cleaning the filter screen 2 is installed inside the duct body 1.

[0033] The cleaning mechanism 3 includes a brush assembly 31 and a driving assembly 32 for driving the brush assembly 31 to move along the length direction of the filter screen 2 .

[0034] Reference Figure 1 and Figure 2 The brush assembly 31 includes a support block 311 that is plugged into the elongated gap 21, and two support rods 312 mounted on the upper surface of the support block 311. The two support rods 312 are arranged vertically upward, and the filter 2 is located between the two support rods 312. The two support rods 312 are each provided with an elongated groove 3121 on the side adjacent to each other. The elongated groove 3121 is arranged along the length of the support rod 312, and a brush roller 313 is rotatably connected to each elongated groove 3121, and each brush roller 313 contacts the filter 2.

[0035] When the brush assembly 31 moves along the length of the filter 2, the two brush rollers 313 roll along the filter 2 to clean the filter 2, and most of the dust on the filter 2 can be separated from the filter 2. When the duct body 1 is first ventilated, the dust separated from the filter 2 can be discharged through the air outlet of the duct body 1. The staff can collect the dust separated from the filter 2 at the air outlet of the duct body 1.

[0036] The driving assembly 32 includes two driving belts 321, and the filter screen 2 is located between the two driving belts 321. Figure 1 and Figure 3 The bottom wall of the duct body 1 is provided with two first through holes 11 and two second through holes 12. Each driving belt 321 passes through one first through hole 11 and one second through hole 12 to form a closed loop. The driving belt 321 is tightly plugged into the first through hole 11, so that air leakage is not easy at the first through hole 11. Similarly, the driving belt 321 is also tightly plugged into the second through hole 12.

[0037] Reference Figure 1 and Figure 3 Each driving belt 321 is fixedly connected to a connecting block 322, and each connecting block 322 is placed inside the pipe body 1. A clamping groove 3221 is formed on the upper surface of the connecting block 322, and a clamping rod 323 is installed on both side walls of the support block 311. One clamping rod 323 corresponds to one clamping groove 3221, and the clamping rod 323 is clamped with the clamping groove 3221.

[0038] A handle 324 is provided below the pipe body 1 and is located outside the pipe body 1. One end of the handle 324 is hinged to one of the drive belts 321, and the other end is hinged to the other drive belt 321. The handle 324 and the brush assembly 31 are located near the ends of the filter screen 2.

[0039] By pulling the handle 324 firmly along the length of the drive belt 321, the handle 324 moves, thereby rotating the drive belt 321. The rotation of the drive belt 321 drives the connecting block 322 to move along the length of the filter 2. The movement of the connecting block 322 drives the clamping rod 323 and the support block 311 to move. The movement of the support block 311 drives the support rod 312 and the brush roller 313 to move along the length of the filter 2. By pulling the handle 324 back and forth along the length of the drive belt 321, the two brush rollers 313 can reciprocate along the length of the filter 2.

[0040] In order to clean the brush assembly 31 , the brush assembly 31 is detachably connected to the filter 2 , and a regulating assembly 4 is connected to the pipe body 1 to drive the brush assembly 31 out of the pipe body 1 .

[0041] Reference Figure 1 and Figure 2 The inner bottom wall of the pipe body 1 defines two mounting openings 13, each located between the two drive belts 321. The control assembly 4 includes a mounting cover 41 that tightly engages each mounting opening 13. The upper surface of the mounting cover 41 is flush with the inner bottom wall of the pipe body 1, and a dovetail block 42 is fixedly connected to the upper surface of the mounting cover 41. The lower surface of the support block 311 defines a dovetail groove 3111, with both ends of the dovetail groove 3111 extending transversely through the support block 311. The dovetail groove 3111 is slidably engaged with one of the dovetail blocks 42.

[0042] Reference Figure 2 and Figure 3 The support block 311 and each engaging rod 323 are hingedly connected via a rotating shaft. A torsion spring 1 (43) is connected between the support block 311 and the engaging rod 323. The torsion spring 1 (43) is sleeved onto the rotating shaft, with one end fixedly connected to the support block 311 and the other end fixedly connected to the engaging rod 323. Each side wall of the support block 311, where the engaging rod 323 is connected, has a transition groove 3112 extending upward to a side wall of the support rod 312. When each engaging rod 323 is engaged with its corresponding engaging groove 3221, the torsion spring 1 (43) is in a normal state.

[0043] The upper and lower ends of each support rod 312 are rotatably connected to rollers 44. The rollers 44 are located on the side of each support rod 312 closest to the filter screen 2. Two guide grooves 22 are defined on a side wall of the filter screen 2 adjacent to each support rod 312. The guide grooves 22 extend along the length of the filter screen 2, with one roller 44 corresponding to each guide groove 22. The rollers 44 engage in rolling engagement with the guide grooves 22. The lower end of each support rod 312 is hingedly connected to the support block 311, and a second torsion spring 45 is disposed between each support rod 312 and the support block 311. One end of the second torsion spring 45 is fixedly connected to the support rod 312, and the other end is fixedly connected to the support block 311.

[0044] Reference Figure 2 and Figure 3 The driving belt 321 drives the support block 311 to slide until the dovetail groove 3111 on the support block 311 is aligned with one of the mounting covers 41 (see Figure 1 ) is slidably plugged into the dovetail block 42 on the mounting cover 41. Pull down the mounting cover 41 connected to the support block 311. The downward movement of the mounting cover 41 drives the support block 311 downward through the dovetail block 42. When the support block 311 moves downward, the upper edge of the mounting opening 13 applies a force to the clamping rod 323 to rotate in the direction close to the transition groove 3112. In the process of pulling the mounting cover 41 downward, each clamping rod 323 gradually rotates into the corresponding transition groove 3112. In this way, the support block 311 and the support rod 312 connected to the support block 311 move downward together with the mounting cover 41. Each support rod 312 is forced to move in the direction away from the filter screen 2 until each roller 44 is separated from the corresponding guide groove 22. In this way, the mounting cover 41 can drive the brush assembly 31 to separate from the interior of the pipe body 1 from one of the mounting openings 13, making it easier to clean the brush assembly 31.

[0045] Both ends of the dovetail groove 3111 gradually expand in a direction away from each other, so that the dovetail block 42 can be easily slid into the dovetail groove 3111 from one end thereof.

[0046] To improve the efficiency of the filter screen 2 in intercepting impurities, an interception assembly 5 is installed within the pipe body 1. The bottom wall of the elongated gap 21 is provided with an elongated groove 14, which runs along the length of the filter screen 2, and each end of the elongated groove 14 extends to a position close to the corresponding mounting opening 13. The interception assembly 5 includes an interception plate 51 that slides and inserts within the elongated groove 14. The interception plate 51 has a plurality of mesh holes. A plurality of springs 52 are disposed between the interception plate 51 and the bottom wall of the elongated groove 14, and the plurality of springs 52 are arranged along the length of the elongated groove 14. One end of the spring 52 is fixedly connected to the bottom wall of the elongated groove 14, and the other end is fixedly connected to the bottom surface of the interception plate 51.

[0047] When the spring 52 is in a normal state, the upper surface of the intercepting plate 51 contacts the bottom surface of the filter screen 2, and the intercepting plate 51 can play a certain role in restricting the flow of air through the long gap 21. Each end of the intercepting plate 51 is provided with an inclined surface 511, and the two inclined surfaces 511 are gradually inclined toward each other from bottom to top.

[0048] When the support block 311 moves along the long gap 21, it abuts against one of the inclined surfaces 511, thereby pushing the intercepting plate 51 downward into the long groove 14. When the support block 311 moves to the dovetail groove 3111 and engages with one of the dovetail blocks 42, the support block 311 is separated from the intercepting plate 51, and the intercepting plate 51 is reset by the elastic force of the spring 52.

[0049] The implementation principle of a ventilation duct with high cleaning efficiency in an embodiment of the present application is: when the filter 2 needs to be cleaned, the handle 324 is pulled back and forth along the length direction of the driving belt 321. The reciprocating rotation of the driving belt 321 can drive the support block 311 and the support rod 312 to move along the length direction of the filter 2, so that each brush roller 313 can roll and clean the filter 2.

[0050] When the brush assembly 31 needs to be disassembled for cleaning, the handle 324 is pulled until the driving belt 321 drives the dovetail groove 3111 on the support block 311 to be plugged into one of the dovetail blocks 42. At this time, the mounting cover 41 connected to the support block 311 is pulled downward, and the mounting block drives each support rod 312 to move downward gradually through the dovetail blocks 42 until the brush assembly 31 is separated from the interior of the pipe body 1 through the mounting opening 13.

[0051] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A ventilation duct with high cleaning efficiency, comprising a duct body (1), wherein the duct body (1) is fixedly connected to a filter screen (2), and characterized in that: A cleaning mechanism (3) is installed on the pipe body (1), the cleaning mechanism (3) comprising a brush assembly (31) contacting the filter screen (2), and a driving assembly (32) driving the brush assembly (31) to move along the filter screen (2), the brush assembly (31) comprising two brush rollers (313) clamping the filter screen (2), the brush assembly (31) being detachably connected to the filter screen (2), and a regulating assembly (4) for driving the brush assembly (31) to be separated from the interior of the pipe body (1) being connected to the pipe body (1); The brush assembly (31) includes two support rods (312), a long gap (21) is provided between the filter screen (2) and the inner bottom wall of the pipe body (1), a support block (311) is inserted into the long gap (21), the drive assembly (32) is connected to the support block (311), the lower end of each support rod (312) is mounted on the support block (311), a long groove (3121) is provided on a side surface of the two support rods (312) close to each other, a brush roller (313) corresponds to one long groove (3121), and the brush roller (313) is rotatably connected in the long groove (3121); The bottom wall of the pipe body (1) is provided with two first through holes (11) and two second through holes (12); the driving assembly (32) includes two driving belts (321); each driving belt (321) passes through one of the first through holes (11) and one of the second through holes (12) and is in a closed loop; a handle (324) is provided at the lower outer side of the pipe body (1); the handle (324) is installed between the two driving belts (321); each driving belt (321) is fixedly connected to a connecting block (322) at a position inside the pipe body (1); a clamping groove (3221) is provided on the upper surface of each connecting block (322); a clamping rod (323) is respectively installed on the two side walls of the support block (311); each clamping rod (323) is clamped to the corresponding clamping groove (3221); The bottom wall of the long gap (21) is provided with a mounting opening (13), the regulating component (4) includes a mounting cover (41) plugged into the mounting opening (13), the upper surface of the mounting cover (41) is fixedly connected with a dovetail block (42), the lower surface of the support block (311) is provided with a dovetail groove (3111), the dovetail groove (3111) passes through the support block (311) transversely, the dovetail block (42) and the dovetail groove (3111) are slidably plugged, each of the clamping rods (323) is hinged to the support block (311), a torsion spring 1 (43) is installed between the clamping rod (323) and the support block (311), the lower end of each of the support rods (312) is hinged to the support block (311), and a torsion spring 2 (45) is installed between the support rod (312) and the support block (311).

2. A ventilation duct with high cleaning efficiency according to claim 1, characterized in that: The upper and lower ends of each support rod (312) are rotatably connected to rollers (44), and two guide grooves (22) are provided on a side wall of the filter screen (2) close to each support rod (312), and each roller (44) is in rolling engagement with the corresponding guide groove (22).

3. A ventilation duct with high cleaning efficiency according to claim 1, characterized in that: Both ends of the dovetail groove (3111) are flared.

4. The ventilation duct with high cleaning efficiency according to claim 1, characterized in that: The bottom wall of the long gap (21) is provided with a long groove (14), and an interception assembly (5) is installed in the pipe body (1). The interception assembly (5) includes an interception plate (51) plugged into the long groove (14), and a plurality of springs (52) are fixedly connected between the interception plate (51) and the bottom wall of the long groove (14). The upper surface of the interception plate (51) contacts the bottom surface of the filter screen (2), and both ends of the interception plate (51) are provided with inclined surfaces (511) that gradually tilt toward each other from bottom to top.

5. A ventilation duct with high cleaning efficiency according to claim 4, characterized in that: The intercepting plate (51) is provided with a plurality of mesh holes.

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