Telescopic filter cloth structure

Abstract

The utility model relates to a telescopic filter cloth structure which comprises a square pipeline and flexible filter cloth, a traction plate is arranged in the square pipeline in a sliding mode, two end faces of the traction plate are tightly attached to the inner walls of the corresponding sides of the square pipeline in a sliding mode respectively, and an adjusting mechanism used for driving the traction plate to conduct translation adjustment in the square pipeline is arranged in the square pipeline. One side of the square pipeline is provided with a passing groove through which the flexible filter cloth passes in a matched manner, and one end of the flexible filter cloth penetrates through the passing groove and extends into the square pipeline. The flexible filter cloth is designed to be telescopic, the traction plate is driven to move towards one side of the winding and unwinding device to a limit position by operating the adjusting mechanism, so that the flexible filter cloth is in a soft state in the square pipeline, and the part, located in the square pipeline, of the flexible filter cloth is wound to the outside by operating the winding and unwinding device; the flexible filter cloth can be retracted and wound, so that the space in the square pipeline can be reserved, the flexible filter cloth does not need to be disassembled and assembled again, and the inner wall of the square pipeline is convenient to clean.

Description

Technical Field

[0001] This utility model relates to the field of filtration device technology, and in particular to a telescopic filter cloth structure. Background Technology

[0002] Filter cloths can be used to filter air. In the field of air filtration, filter cloths are often referred to as air filter materials or air filter media. They are designed to capture particulate matter in the air, such as dust, particles, and other pollutants.

[0003] In air filtration technology, filter cloths are typically removable and washable, installed inside air delivery ducts. After prolonged operation, a large amount of dirt accumulates on the inner walls of the ducts. To prevent this from affecting normal airflow, the inner walls of the ducts need to be cleaned regularly. However, the filter cloth installed inside the ducts can obstruct the cleaning process, so it must be removed. After cleaning the inner walls of the ducts, the filter cloth must be reinstalled. This process of removing and reinstalling the filter cloth is not only time-consuming and labor-intensive, but also increases the workload of the staff, making it inconvenient and slow. Utility Model Content

[0004] The purpose of this invention is to provide a telescopic filter cloth structure that effectively solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution.

[0006] A telescopic filter cloth structure includes a square pipe and a flexible filter cloth. A traction plate is slidably installed inside the square pipe. The two ends of the traction plate are tightly slidably attached to the inner walls of the corresponding sides of the square pipe. An adjustment mechanism is provided inside the square pipe for driving the traction plate to move and adjust within the square pipe. A passage groove is provided on one side of the square pipe for the flexible filter cloth to pass through. One end of the flexible filter cloth extends through the passage groove into the square pipe and is fixed to the traction plate. The other end of the flexible filter cloth is wound onto a winding and unwinding device arranged on the outer side of the square pipe. The winding and unwinding device is used to wind and unwind the flexible filter cloth.

[0007] To ensure that the flexible filter cloth remains taut during filtration, if the flexible filter cloth is loose when the traction plate is adjusted to be in close contact with the inner wall of the square pipe away from the winding device, the flexible filter cloth can be wound up by operating the winding device. This will ensure that the part of the flexible filter cloth inside the square pipe is taut, thus ensuring that filtration can be carried out normally.

[0008] As can be seen, this telescopic filter cloth structure designs the flexible filter cloth to be telescopic. By operating the adjustment mechanism, the traction plate is moved to the limit position to the side of the winding device, so that the flexible filter cloth is in a loose state inside the square pipe. By operating the winding device, the part of the flexible filter cloth inside the square pipe is rolled up to the outside, realizing the retraction and winding of the flexible filter cloth, thereby freeing up space inside the square pipe, which is convenient for cleaning the inner wall of the square pipe.

[0009] Furthermore, the two sides of the flexible filter cloth are flush with the two ends of the traction plate, and when the flexible filter cloth travels through the groove, the flexible filter cloth slides tightly against the four inner wall surfaces of the groove.

[0010] Furthermore, the unwinding device includes a support, a take-up roller, and a drive mechanism. A pair of supports are symmetrically fixed on the outer side of the through slot. The take-up roller is rotatably mounted on the measuring support. The flexible filter cloth is wound onto the take-up roller. The drive mechanism is arranged on the outside of the square pipe and is used to drive the take-up roller to adjust its forward and reverse rotation.

[0011] Furthermore, the drive mechanism includes a side frame, a worm gear, and a worm wheel. The side frame is fixed to the side of the square pipe, the worm gear is rotatably mounted on the side frame, and a worm wheel is fixed to one end of the take-up roller, with the worm wheel meshing with the worm gear.

[0012] Furthermore, the adjustment mechanism includes a threaded rod, a nut seat, and a connecting block. A drive groove is provided on the inner wall of the square pipe. The threaded rod is rotatably installed in the drive groove, and one end extends through to the outer side of the square pipe. The nut seat is limited and slidably installed in the drive groove and threadedly fitted onto the threaded rod. A connecting block is fixed to the side of the nut seat, and a traction plate is fixed to the top of the connecting block.

[0013] The worm gear and worm wheel have unidirectional transmission capability and a self-locking effect when not in adjustment, which prevents the winding roller from rotating arbitrarily and releasing the flexible filter cloth. The traction plate is adjusted by moving the nut seat through the threaded rod, which also has a self-locking effect when not in adjustment, preventing the traction plate from moving arbitrarily. Thus, they work together to maintain the taut state of the flexible filter cloth, ensuring that the flexible filter cloth can completely cover and extend within the square pipe, thereby improving the filtration effect.

[0014] Furthermore, a handle is installed at one end of the worm gear, and a rocker plate is installed at the end of the threaded rod located outside the square pipe.

[0015] Compared with the prior art, the beneficial effects of this utility model are as follows.

[0016] 1. This utility model designs the flexible filter cloth as retractable. By operating the adjustment mechanism, the traction plate is moved to the limit position on one side of the winding device, so that the flexible filter cloth is in a loose state inside the square pipe. By operating the winding device, the part of the flexible filter cloth inside the square pipe is rolled up to the outside, realizing the retraction and winding of the flexible filter cloth. This frees up space inside the square pipe, eliminating the need to disassemble and reassemble the flexible filter cloth, thus facilitating the cleaning of the inner wall of the square pipe.

[0017] 2. The worm gear and worm wheel in this utility model have unidirectional transmission capability and play a self-locking role when not being adjusted, which can prevent the winding roller from rotating randomly and releasing the flexible filter cloth at will. The traction plate is adjusted by using the threaded rod to drive the nut seat to move, which also plays a self-locking role when not being adjusted, preventing the traction plate from moving randomly when not being adjusted. Thus, they work together to maintain the taut state of the flexible filter cloth, ensuring that the flexible filter cloth can completely cover and extend within the square pipe, thereby improving the filtration effect. Attached Figure Description

[0018] Figure 1 This is one of the three-dimensional schematic diagrams of the overall structure of this utility model;

[0019] Figure 2 This is the second three-dimensional schematic diagram of the overall structure of this utility model;

[0020] Figure 3 for Figure 1 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 4 This is a schematic cross-sectional view of the present invention.

[0022] Figure 5 for Figure 4 Enlarged schematic diagram of the structure at point B.

[0023] In the diagram: 1. Square pipe; 11. Through slot; 2. Flexible filter cloth; 3. Winding device; 31. Support; 32. Take-up roller; 33. Drive mechanism; 331. Side frame; 332. Worm gear; 3321. Handle; 333. Worm wheel; 4. Traction plate; 5. Adjustment mechanism; 501. Drive slot; 51. Threaded rod; 511. Rocking disc; 52. Nut seat; 53. Connecting block. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0025] Please see Figures 1-5 This utility model provides a telescopic filter cloth structure, including a square pipe 1 and a flexible filter cloth 2. A traction plate 4 is slidably installed inside the square pipe 1. The two end faces of the traction plate 4 are tightly slidably attached to the inner wall of the corresponding side of the square pipe 1, ensuring that impurities are prevented from passing through the gap between the end face of the traction plate 4 and the inner wall of the square pipe 1 during filtration. An adjustment mechanism 5 is provided inside the square pipe 1 for driving the traction plate 4 to move and adjust within the square pipe 1. A passage groove 11 is provided on one side of the square pipe 1 for the flexible filter cloth 2 to pass through. One end of the flexible filter cloth 2 extends through the passage groove 11 into the square pipe 1 and is fixed to the traction plate 4. The other end of the flexible filter cloth 2 is wound onto a winding and unwinding device 3 arranged on the outer side of the square pipe 1. The winding and unwinding device 3 is used to wind and unwind the flexible filter cloth 2.

[0026] During use, the flexible filter cloth 2 wound on the winding device 3 is first released by operating the winding device 3. After the flexible filter cloth 2 is released to a suitable length, the adjusting mechanism 5 drives the traction plate 4 to slide and adjust to the side away from the winding device 3 until the side surface of the traction plate 4 is tightly attached to the inner wall of the square pipe 1. The traction plate 4 can be used to stretch and straighten the released part of the flexible filter cloth 2 inside the square pipe 1, so as to achieve full extension of the flexible filter cloth 2 inside the square pipe 1 and realize normal filtration. The tight attachment between the side surface of the traction plate 4 and the inner wall of the square pipe 1 can prevent impurities from passing through the seal between the side surface of the traction plate 4 and the inner wall of the square pipe 1.

[0027] When it is necessary to clean the inside of the square pipe 1, firstly, the traction plate 4 is moved to the limit position by operating the adjustment mechanism 5 to the side of the winding device 3, so that the flexible filter cloth 2 is in a loose state inside the square pipe 1. Then, the portion of the flexible filter cloth 2 inside the square pipe 1 is rolled up to the outside by operating the winding device 3, so as to realize the retraction and winding of the flexible filter cloth 2, thereby freeing up space inside the square pipe 1, which is convenient for cleaning the inner wall of the square pipe 1.

[0028] This utility model designs the flexible filter cloth 2 as retractable. By operating the adjustment mechanism 5, the traction plate 4 is moved to the limit position on one side of the winding and unwinding device 3, so that the flexible filter cloth 2 is in a loose state inside the square pipe 1. By operating the winding and unwinding device 3, the part of the flexible filter cloth 2 located inside the square pipe 1 is rolled up to the outside, realizing the retraction and winding of the flexible filter cloth 2, thereby freeing up space inside the square pipe 1, which is convenient for cleaning the inner wall of the square pipe 1.

[0029] Specifically, the two sides of the flexible filter cloth 2 are flush with the two ends of the traction plate 4, ensuring that when the flexible filter cloth 2 is stretched inside the square pipe 1, the two sides can be tightly attached to the inner wall of the square pipe 1, preventing impurities from passing through the gap between the side of the flexible filter cloth 2 and the inner wall of the square pipe 1. When the flexible filter cloth 2 passes through the through groove 11, the flexible filter cloth 2 and the four sides of the inner wall surface of the through groove 11 are tightly slid and attached, preventing impurities from entering the square pipe 1 through the gap between the flexible filter cloth 2 and the inner wall of the through groove 11.

[0030] Specifically, the unwinding device 3 includes a support 31, a take-up roller 32, and a drive mechanism 33. A pair of supports 31 are symmetrically fixed on the outer side of the through slot 11. The take-up roller 32 is rotatably mounted on the support 31. The flexible filter cloth 2 is wound on the take-up roller 32. The drive mechanism 33 is arranged on the outside of the square pipe 1 and is used to drive the take-up roller 32 to perform forward and reverse rotation adjustment.

[0031] The drive mechanism 33 includes a side frame 331, a worm gear 332, and a worm wheel 333. The side frame 331 is fixed to the side of the square pipe 1. The worm gear 332 is rotatably mounted on the side frame 331. One end of the take-up roller 32 is fixed with a worm wheel 333, which meshes with the worm gear 332. By adjusting the worm gear 332, the rotating worm gear 332 meshes with and drives the worm wheel 333, thereby driving the take-up roller 32 to rotate, thus realizing the winding and unwinding of the flexible filter cloth 2.

[0032] Specifically, the adjusting mechanism 5 includes a threaded rod 51, a nut seat 52, and a connecting block 53. A drive groove 501 is provided on the inner wall of the square pipe 1. The threaded rod 51 is rotatably installed in the drive groove 501, and one end extends through to the outer side of the square pipe 1. The nut seat 52 is slidably installed in the drive groove 501 and threadedly fitted onto the threaded rod 51. A connecting block 53 is fixed to the side of the nut seat 52. The traction plate 4 is fixed to the top of the connecting block 53. By screwing the threaded rod 51, the rotating threaded rod 51 can drive the nut seat 52 to slide along the drive groove 501. Under the fixed connection of the connecting block 53, the traction plate 4 is driven to move synchronously, thereby providing a stable drive for the movement adjustment of the traction plate 4.

[0033] Furthermore, the worm gear 332 and worm wheel 333 have unidirectional transmission capability and play a self-locking role when not being adjusted, which can prevent the winding roller 32 from rotating arbitrarily and releasing the flexible filter cloth 2 at will. The traction plate 4 is adjusted by using the threaded rod 51 to drive the nut seat 52 to move. It also plays a self-locking role when not being adjusted, preventing the traction plate 4 from moving arbitrarily when not being adjusted. Thus, they work together to maintain the taut state of the flexible filter cloth 2, ensuring that the flexible filter cloth 2 can completely cover and extend within the square pipe 1, thereby improving the filtration effect.

[0034] Specifically, a handle 3321 is installed at one end of the worm gear 332. By pinching the handle 3321, the worm gear 332 can be easily turned and adjusted. A rocker plate 511 is installed on the end of the threaded rod 51 located outside the square pipe 1. By holding the handle on the rocker plate 511 and shaking it, the threaded rod 51 can be easily turned and adjusted.

[0035] The above is a detailed description of the present invention in conjunction with specific embodiments, and it should not be construed that the specific embodiments of the present invention are limited to these descriptions. For those skilled in the art, any equivalent substitutions or obvious modifications made without departing from the concept of the present invention, and which have the same performance or use, should be considered as falling within the patent protection scope defined by the submitted claims.

Claims

1. A telescopic filter cloth structure, comprising a square pipe (1) and a flexible filter cloth (2), characterized in that: A traction plate (4) is slidably installed inside the square pipe (1), and the two ends of the traction plate (4) are tightly slidably attached to the inner wall of the corresponding side of the square pipe (1); The square pipe (1) is provided with an adjustment mechanism (5) for driving the traction plate (4) to make translational adjustments in the square pipe (1); The square pipe (1) has a passage groove (11) on one side for the flexible filter cloth (2) to pass through. One end of the flexible filter cloth (2) extends through the passage groove (11) into the square pipe (1) and is fixed with the traction plate (4). The other end of the flexible filter cloth (2) is wound up on a winding and unwinding device (3) arranged on the outside of the square pipe (1). The winding and unwinding device (3) is used to wind up and unwind the flexible filter cloth (2).

2. The telescopic filter cloth structure according to claim 1, characterized in that: The two sides of the flexible filter cloth (2) are flush with the two ends of the traction plate (4); When the flexible filter cloth (2) travels through the passage groove (11), the flexible filter cloth (2) and the four inner wall surfaces of the passage groove (11) slide tightly together.

3. The telescopic filter cloth structure according to claim 1, characterized in that: The unwinding device (3) includes a support (31), a take-up roller (32), and a drive mechanism (33). A pair of brackets (31) are symmetrically fixed on the outer side of the through groove (11), and the winding roller (32) is rotatably mounted on the brackets (31), and the flexible filter cloth (2) is wound on the winding roller (32). The drive mechanism (33) is arranged on the outside of the square pipe (1) and is used to drive the take-up roller (32) to adjust its forward and reverse rotation.

4. The telescopic filter cloth structure according to claim 3, characterized in that: The drive mechanism (33) includes a side frame (331), a worm (332), and a worm wheel (333). The side bracket (331) is fixed to the side of the square pipe (1), and the worm gear (332) is rotatably mounted on the side bracket (331); One end of the take-up roller (32) is fixed with the worm gear (333), which meshes with the worm (332).

5. The telescopic filter cloth structure according to claim 4, characterized in that: The adjusting mechanism (5) includes a threaded rod (51), a nut seat (52), and a connecting block (53); The inner wall of the square pipe (1) is provided with a drive groove (501), and the threaded rod (51) is rotatably installed in the drive groove (501), with one end extending through to the outer side of the square pipe (1). The nut seat (52) is slidably installed in the drive groove (501) and threadedly fitted onto the threaded rod (51). A connecting block (53) is fixed to the side of the nut seat (52), and the traction plate (4) is fixed to the top of the connecting block (53).

6. The telescopic filter cloth structure according to claim 5, characterized in that: A handle (3321) is installed at one end of the worm gear (332); The threaded rod (51) is mounted with a rocker plate (511) at the end located outside the square pipe (1).

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