Roller shutter type filtering device

Abstract

The utility model provides a roller shutter type filtering device which comprises a filtering device body, roller shutter filter paper, a first rotating shaft and a second rotating shaft, the first rotating shaft is arranged at the top of the filtering device body through an upper shell, the second rotating shaft is arranged at the bottom of the filtering device body through a lower shell, and one end of the roller shutter filter paper is wound on the first rotating shaft. One end of the second rotating shaft is connected with a driving motor through a transmission chain, the roller shutter filter paper is unwound by the first rotating shaft and wound by the second rotating shaft, the back face of the filter device body is an air inlet face, the filter device body comprises longitudinal beams on the two sides and a plurality of cross beams erected between the longitudinal beams, and the cross beams are evenly arranged up and down. A cotton rolling track is arranged on the inner side of the longitudinal beam and arranged on the side, close to the air inlet face, of the cross beam, and a groove is formed in the middle of the cotton rolling track and used for limiting the edges of the two sides of the roller shutter filter paper, so that the situation that the filtering effect is affected due to the fact that the edges of the two sides of the roller shutter filter paper leak out during continuous use or when the air inlet amount is large is avoided.

Description

Technical Field

[0001] This utility model relates to the field of air filter technology, and more specifically, to a roller shutter type filter device. Background Technology

[0002] With industrialization and the resulting increased convenience in people's lives, various new products have emerged. Many of these products are manufactured in workshops, which are relatively enclosed spaces. During production, raw materials can easily release odors and even dust. Therefore, various air filters have been developed. Automatic roller shutter filters, in particular, are widely used in production and daily life due to their excellent ventilation and dust removal performance, high strength, high temperature resistance, and good chemical stability. Automatic roller shutter filters use a differential pressure switch and a motor to automatically replace the filter media, thus extending the filtration time. They convert the pressure difference across the filter into a sensor signal and automatically replace the filter material. Typically, automatic roller shutter filters have two motors: one to unfold the filter media and the other to rewind the unfolded and used filter media.

[0003] CN 211562258 U discloses an automatic roller shutter filter, including a filter body, a roller shutter filter cloth, a first roller core, and a second roller core. The filter body is equipped with a segmentation detector, and the edge of the roller shutter filter cloth is provided with a positioning mark that matches the segmentation detector. The first roller core is set on the top of the filter body through a first drive motor. The second roller core is set on the bottom of the filter body through a second drive motor. One end of the roller shutter filter cloth is wound around the first roller core, and the other end is wound around the second roller core. The automatic roller shutter filter disclosed in this utility model enables the segmentation detector to identify the positioning mark at the edge of the roller shutter filter cloth during the movement of the roller shutter filter cloth between the first roller core and the second roller core under the drive of the first drive motor and the second drive motor.

[0004] Although this technical solution has the advantages of accurate positioning, allowing the roller shutter filter cloth to automatically switch modes for air filtration according to usage needs, the filter cloth of this technical solution is prone to leakage at the edges during continuous high winds, affecting the filtration effect, and it uses two drive motors, resulting in high energy consumption. Utility Model Content

[0005] In view of this, in order to solve the above problems, this utility model proposes a roller shutter type filter device, which adopts a back-entry air intake, so that filter paper replacement and control operation are all located on the clean side, resulting in high cleanliness; by setting cotton rolling tracks 8 on both sides, and setting grooves 81 in the middle of the cotton rolling tracks 8 to limit the two sides of the roller shutter filter paper 2, the two sides of the roller shutter filter paper 2 will not leak out during continuous use or when the air intake is large, thus affecting the filtration effect. In addition, the grooves 81 of the cotton rolling tracks 8 are evenly and densely distributed with openings 83 on both sides to increase the air permeability; and only one drive motor 5 is used, reducing energy consumption.

[0006] A roller shutter type filter device includes a filter device body 1, a roller shutter filter paper 2, a first rotating shaft 31, and a second rotating shaft 42. The first rotating shaft 31 is mounted on the top of the filter device body 1 via an upper housing 3, and the second rotating shaft 42 is mounted on the bottom of the filter device body 1 via a lower housing 4. One end of the roller shutter filter paper 2 is wound around the first rotating shaft 31, and the other end is wound around the second rotating shaft 42. One end of the second rotating shaft 42 is connected to a drive motor 5 via a transmission chain 52. The drive motor 5 drives the transmission chain 52 to rotate, thereby driving the second rotating shaft 42 to rotate, so that the roller shutter filter paper 2 is unrolled from the first rotating shaft 31. The second rotating shaft 42 rewinds the filter paper. The lower housing 4 contains used filter paper. The filter device body 1 has the following characteristics: the back side is the air inlet side. The filter device body includes longitudinal beams 6 on both sides and crossbeams 7 mounted between the longitudinal beams 6. There are multiple crossbeams 7, which are evenly arranged vertically. The inner side of the longitudinal beams 6 is provided with a cotton rolling track 8. The cotton rolling track 8 is located on the side of the crossbeam 7 near the air inlet side. The cotton rolling track 8 has a groove 81 in the middle. The groove 81 is used to limit the two sides of the roller filter paper 2, so that the two sides of the roller filter paper 2 will not leak out and affect the filtration effect when used continuously or when the air volume is large.

[0007] Furthermore, the cross-section of the cotton rolling track 8 is C-shaped.

[0008] Furthermore, the C-shaped structure of the cotton rolling track 8 is provided with connecting strips 82 on both sides, and the connecting strips 82 are evenly and densely covered with openings 83 to increase the air permeability, so that the cotton rolling track 8 can limit the position of the curtain filter paper 2 without affecting the filtration effect.

[0009] Furthermore, the filter device body 1 is provided with a plurality of first fixing steel wires 91 evenly spaced apart. One end of the plurality of first fixing steel wires 91 is connected to the top of the filter device body 1 and the other end is connected to the bottom of the filter device body 1. Each first fixing steel wire 91 passes through the plurality of crossbeams 7 from top to bottom, and is used to strengthen and support the filter device body 1.

[0010] Furthermore, a plurality of second fixing wires 92 are provided on the side of the filter device body 1 near the air inlet surface. One end of the second fixing wire 92 is connected to the top of the filter device body 1, and the other end is connected to the bottom of the filter device body 1. The plurality of second fixing wires 92 and the plurality of first fixing wires 91 further limit the position of the roller filter paper 2.

[0011] Furthermore, the drive motor 5 is mounted on the air outlet side of the filter device body 1 via the bracket 51. A gear is connected to one side of the drive motor 5, and a bearing and a gear are connected to one end of the second rotating shaft 42. The transmission chain 52 achieves transmission through the drive motor 5, the gear, and the bearing, thereby enabling the roller filter paper 2 to move from the first rotating shaft 31 to the second rotating shaft 42.

[0012] Furthermore, the outer cover of the transmission chain 52 is provided with a chain cover 53 for dust prevention.

[0013] Furthermore, the upper housing 3 is provided with a sealing strip 32 and a sealing clip 33 on the side near the air outlet. When the filter paper needs to be replaced, the sealing clip 33 can be opened.

[0014] Furthermore, both the upper housing 3 and the lower housing 4 are equipped with handles to facilitate opening the housings and replacing the internal filter paper.

[0015] Furthermore, a counter 10 is provided on the air outlet side of the filter device body 1 to measure the length of the used old filter paper so as to replace the clean filter paper in time.

[0016] Furthermore, a differential pressure switch 11 is provided on the air outlet side of the filter device body 1. By converting the pressure difference between the two sides of the filter device body 1 into a sensing electrical signal, the operation of the drive motor 5 is controlled. When the set pressure difference is reached, the differential pressure switch 11 is opened and the drive motor 5 is driven. When the pressure difference is lower than the set pressure difference, the differential pressure switch 11 is closed, the drive motor 5 is stopped, and the roller filter paper 2 stops moving.

[0017] Furthermore, a control box 12 is provided on the air outlet side of the filter device body 1 via a support member, and the control box 12 is electrically connected to the drive motor 5 and the differential pressure switch 11.

[0018] The beneficial effects of this utility model are as follows: This utility model proposes a roller shutter type filter device, which adopts a back-entry air intake, so that filter paper replacement and control operation are all located on the clean side, resulting in high cleanliness; by setting cotton rolling tracks 8 on both sides, and setting grooves 81 in the middle of the cotton rolling tracks 8 to limit the two sides of the roller shutter filter paper 2, the two sides of the roller shutter filter paper 2 will not leak out and affect the filtration effect when used continuously or when the air intake is large. In addition, the grooves 81 of the cotton rolling tracks 8 are evenly and densely distributed with openings 83 on both sides to increase the air permeability; and only one drive motor 5 is used, reducing energy consumption. Attached Figure Description

[0019] Figure 1 This is an overall structural diagram of the roller shutter-type filter device of this utility model.

[0020] Figure 2 This is a partial structural diagram of the back of the roller shutter-type filter device of this utility model.

[0021] Figure 3 This is a structural diagram of the cotton rolling track of the roller shutter-type filter device of this utility model.

[0022] Explanation of main component symbols

[0023] The filter device consists of: 1. Main body of the filter device; 2. Roll filter paper; 3. Upper housing; 3. First rotating shaft; 31. Sealing strip; 32. Sealing buckle; 33. Lower housing; 4. Second rotating shaft; 42. Drive motor; 5. Bracket; 51. Transmission chain; 52. Chain cover; 53. Longitudinal beam; 6. Crossbeam; 7. Roll cotton track; 8. Groove; 81. Connecting strip; 82. Opening; 83. First fixing wire; 91. Second fixing wire; 92. Counter; 10. Differential pressure switch; 11. Control box; 12.

[0024] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation Example 1:

[0025] A roller shutter type filter device includes a filter device body 1, a roller shutter filter paper 2, a first rotating shaft 31, and a second rotating shaft 42. The first rotating shaft 31 is mounted on the top of the filter device body 1 via an upper housing 3, and the second rotating shaft 42 is mounted on the bottom of the filter device body 1 via a lower housing 4. One end of the roller shutter filter paper 2 is wound around the first rotating shaft 31, and the other end is wound around the second rotating shaft 42. One end of the second rotating shaft 42 is connected to a drive motor 5 via a transmission chain 52. The drive motor 5 drives the transmission chain 52 to rotate, thereby driving the second rotating shaft 42 to rotate, so that the roller shutter filter paper 2 is unrolled from the first rotating shaft 31. The second rotating shaft 42 rewinds the filter paper. The lower housing 4 contains used filter paper. The filter device body 1 has the following characteristics: the back side is the air inlet side. The filter device body includes longitudinal beams 6 on both sides and crossbeams 7 mounted between the longitudinal beams 6. There are multiple crossbeams 7, which are evenly arranged vertically. The inner side of the longitudinal beams 6 is provided with a cotton rolling track 8. The cotton rolling track 8 is located on the side of the crossbeam 7 near the air inlet side. The cotton rolling track 8 has a groove 81 in the middle. The groove 81 is used to limit the two sides of the roller filter paper 2, so that the two sides of the roller filter paper 2 will not leak out and affect the filtration effect when used continuously or when the air volume is large.

[0026] The cross-section of the cotton rolling track 8 is C-shaped.

[0027] Both sides of the C-shaped structure of the cotton rolling track 8 are provided with connecting strips 82. The connecting strips 82 are evenly and densely covered with openings 83 to increase the air permeability, so that the cotton rolling track 8 can limit the position of the curtain filter paper 2 without affecting the filtration effect.

[0028] The filter device body 1 is provided with a plurality of first fixing steel wires 91 evenly spaced. One end of the plurality of first fixing steel wires 91 is connected to the top of the filter device body 1 and the other end is connected to the bottom of the filter device body 1. Each first fixing steel wire 91 passes through the plurality of crossbeams 7 from top to bottom, and is used to strengthen and support the filter device body 1.

[0029] The filter device body 1 is provided with a plurality of second fixing wires 92 on the side near the air inlet surface. One end of the second fixing wire 92 is connected to the top of the filter device body 1 and the other end is connected to the bottom of the filter device body 1. The plurality of second fixing wires 92 and the plurality of first fixing wires 91 further limit the position of the roller filter paper 2.

[0030] The drive motor 5 is mounted on the air outlet side of the filter device body 1 via a bracket 51. A gear is connected to one side of the drive motor 5. One end of the second rotating shaft 42 is connected to a bearing and a gear. The transmission chain 52 achieves transmission through the drive motor 5, the gear, and the bearing, thereby enabling the roller filter paper 2 to move from the first rotating shaft 31 to the second rotating shaft 42.

[0031] The transmission chain 52 is covered with a chain cover 53 for dust protection.

[0032] The upper housing 3 is provided with a sealing strip 32 and a sealing clip 33 on the side near the air outlet. When the filter paper needs to be replaced, the sealing clip 33 can be opened.

[0033] Both the upper housing 3 and the lower housing 4 are equipped with handles, which facilitate opening the housings to replace the internal filter paper.

[0034] A counter 10 is provided on the air outlet side of the filter device body 1 to measure the length of the used filter paper so that clean filter paper can be replaced in time.

[0035] A differential pressure switch 11 is provided on the air outlet side of the filter device body 1. By converting the pressure difference between the two sides of the filter device body 1 into a sensing electrical signal, the operation of the drive motor 5 is controlled. When the set pressure difference is reached, the differential pressure switch 11 is opened and the drive motor 5 is driven. When the pressure difference is lower than the set pressure difference, the differential pressure switch 11 is closed and the drive motor 5 is stopped, and the roller filter paper 2 stops moving.

[0036] A control box 12 is provided on the air outlet side of the filter device body 1 via a support member. The control box 12 is electrically connected to the drive motor 5 and the differential pressure switch 11.

[0037] The beneficial effects of this utility model are as follows: This utility model proposes a roller shutter type filter device, which adopts a back-entry air intake, so that filter paper replacement and control operation are all located on the clean side, resulting in high cleanliness; by setting cotton rolling tracks 8 on both sides, and setting grooves 81 in the middle of the cotton rolling tracks 8 to limit the two sides of the roller shutter filter paper 2, the two sides of the roller shutter filter paper 2 will not leak out and affect the filtration effect when used continuously or when the air intake is large. In addition, the grooves 81 of the cotton rolling tracks 8 are evenly and densely distributed with openings 83 on both sides to increase the air permeability; and only one drive motor 5 is used, reducing energy consumption.

[0038] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A roller shutter type filter device, comprising a filter device body (1), roller shutter filter paper (2), a first rotating shaft (31), and a second rotating shaft (42), wherein the first rotating shaft (31) is disposed on the top of the filter device body (1) via an upper housing (3), and the second rotating shaft (42) is disposed on the bottom of the filter device body (1) via a lower housing (4), wherein one end of the roller shutter filter paper (2) is wound around the first rotating shaft (31), and the other end is wound around the second rotating shaft (42), wherein one end of the second rotating shaft (42) is connected to a drive motor (5) via a transmission chain (52), and the drive motor (5) drives the transmission chain (52) to rotate, thereby driving the second rotating shaft (42) to rotate, so that the roller shutter filter paper (2) is unwound from the first rotating shaft (31) and wound up from the second rotating shaft (42), wherein the lower housing (4) contains used filter paper, characterized in that: The back of the filter device body (1) is the air inlet surface. The filter device body includes longitudinal beams (6) on both sides and cross beams (7) erected between the longitudinal beams (6). There are multiple cross beams (7) and they are evenly arranged vertically. The inner side of the longitudinal beams (6) is provided with a cotton rolling track (8). The cotton rolling track (8) is located on the side of the cross beam (7) near the air inlet surface. The middle part of the cotton rolling track (8) is provided with a groove (81). The groove (81) is used to limit the two sides of the roller filter paper (2) so that the two sides of the roller filter paper (2) will not leak out and affect the filtration effect when the continuous use is or when the air intake is large.

2. The roller shutter type filter device as described in claim 1, characterized in that: The cross-section of the cotton rolling track (8) is a C-shaped structure, and connecting strips (82) are provided on both sides of the C-shaped structure. The connecting strips (82) are evenly and densely covered with openings (83).

3. The roller shutter type filter device as described in claim 1, characterized in that: The filter device body (1) is provided with a plurality of first fixing wires (91) evenly spaced. One end of the plurality of first fixing wires (91) is connected to the top of the filter device body (1), and the other end is connected to the bottom of the filter device body (1). Each first fixing wire (91) passes through the plurality of crossbeams (7) from top to bottom.

4. The roller shutter type filter device as described in claim 3, characterized in that: The filter device body (1) is provided with a plurality of second fixing wires (92) on the side near the air inlet surface. One end of the second fixing wire (92) is connected to the top of the filter device body (1) and the other end is connected to the bottom of the filter device body (1). The plurality of second fixing wires (92) and the plurality of first fixing wires (91) further limit the position of the roller filter paper (2).

5. The roller shutter type filter device as described in claim 1, characterized in that: The drive motor (5) is mounted on the air outlet side of the filter body (1) via a bracket (51). A gear is connected to one side of the drive motor (5). A bearing and a gear are connected to one end of the second rotating shaft (42). The transmission chain (52) is driven by the drive motor (5), the gear, and the bearing, thereby enabling the roller filter paper (2) to move from the first rotating shaft (31) to the second rotating shaft (42).

6. The roller shutter type filter device as described in claim 1, characterized in that: A counter (10) is provided on one side of the air outlet surface of the filter device body (1).

7. The roller shutter type filter device as described in claim 1, characterized in that: A differential pressure switch (11) is provided on the air outlet side of the filter device body (1).

8. The roller shutter type filter device as described in claim 1, characterized in that: A control box (12) is provided on the air outlet side of the filter device body (1) via a support member. The control box (12) is electrically connected to the drive motor (5) and the differential pressure switch (11).

9. The roller shutter type filter device as described in claim 1, characterized in that: The upper housing (3) is provided with a sealing strip (32) and a sealing buckle (33) on the side near the air outlet.

10. The roller shutter type filter device as described in claim 1, characterized in that: Both the upper housing (3) and the lower housing (4) are equipped with handles.

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