Dust filter

Abstract

The utility model provides a dust filter, which relates to the technical field of filters, and comprises a filter main body, one side of the filter main body is provided with an air inlet, one end of the filter main body far away from the air inlet is provided with an air outlet, the air inlet is internally provided with an air extractor, the filter main body is internally provided with a filter element, and the filter element is internally provided with an air outlet. A connecting device is arranged in the filter body, a connecting pipe is arranged at one end of the air inlet, a limiting device is arranged on one side of the air inlet, the connecting device comprises a fixing plate, a first positioning groove is formed in the bottom of the filter body, and the inner wall of the first positioning groove is slidably connected with the fixing plate. A rubber plate is fixedly connected to the top of the fixing plate, when the connecting device is used, the fixing plate is manually slid into the first positioning groove, then the rubber plate is extruded into the filter main body, and the fixing plate is conveniently detached through reverse operation.

Description

Technical Field

[0001] This utility model relates to the field of filter technology, and in particular to a dust filter. Background Technology

[0002] A filter is a device used to remove dust from the air. When using a filter, an air pump draws dusty air into the filter body, where the dust is adsorbed onto the filter element. The purified air then exits through the outlet, thus achieving the function of dust filtration.

[0003] The inventor discovered in his daily work that the filter still has at least the following problems: When using the filter, an air pump is used to draw air containing dust into the interior of the filter body, so that the dust is adsorbed on the filter element, and then the purified air is discharged through the air outlet. This can play the role of dust filtration. However, in actual use, multiple bolts need to be removed when replacing the filter element, which is quite troublesome. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a dust filter.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dust filter, comprising a filter body, an air inlet on one side of the filter body, an air outlet at the end of the filter body away from the air inlet, an air extractor inside the air inlet, a filter element inside the filter body, a connecting device inside the filter body, a connecting pipe at one end of the air inlet, a limiting device on one side of the air inlet, the connecting device including a fixing plate, a first positioning groove at the bottom of the filter body, the inner wall of the first positioning groove being slidably connected to the fixing plate, and a rubber plate fixedly connected to the top of the fixing plate, the rubber plate being disposed inside the filter body.

[0006] The effect achieved by the above components is as follows: when using the connecting device, the fixing plate is manually slid into the first positioning groove, thereby squeezing the rubber plate into the filter body. The reverse operation makes it easy to remove the fixing plate, thus making it easy to replace the filter element.

[0007] Preferably, a rubber ring is fixedly connected to the top of the rubber plate, and the rubber ring is sleeved on the surface of the bottom of the filter element.

[0008] The effect achieved by the above components is to fit the bottom of the filter element inside the rubber ring, which makes it easier to confine the filter element to the side of the fixing plate close to the filter body.

[0009] Preferably, a fixing ring is fixedly connected to the top of the inner wall of the filter body, a first damping rod is fixedly connected to the top of the inner wall of the filter body, a limiting sleeve is fixedly connected to the bottom of the first damping rod, the limiting sleeve is sleeved on the top of the filter element, a first spring is sleeved on the surface of the first damping rod, one end of the first spring is fixedly connected to the top of the inner wall of the filter body, and the end of the first spring near the first damping rod is fixedly connected to the top of the limiting sleeve.

[0010] The effect achieved by the above components is that the limiting sleeve is pressed against the top of the filter element by the first spring, which is away from the inner wall of the filter body, thereby making the limiting sleeve press against the top of the filter element, which makes it easier to confine the filter element inside the filter body.

[0011] Preferably, a rectangular groove is provided at the bottom of the filter body, a rectangular block is slidably connected to the inner wall of the rectangular groove, a second damping rod is fixedly connected to one side of the inner wall of the rectangular groove, the bottom of the second damping rod is fixedly connected to the top of the rectangular block, a second spring is sleeved on the surface of the second damping rod, one end of the second spring is fixedly connected to one side of the inner wall of the rectangular groove, and the end of the second spring near the second damping rod is fixedly connected to one side of the rectangular block.

[0012] The effect achieved by the above components is that the rectangular block is pulled towards the rectangular groove by the second spring, thereby effectively confining the rectangular block inside the rectangular groove.

[0013] Preferably, a second positioning groove is provided on one side of the rectangular groove, and a rubber block is provided on the inner wall of the second positioning groove. One side of the rubber block is fixedly connected to one side of the rectangular block.

[0014] The effect achieved by the above components is to squeeze the rubber block into the interior of the second positioning groove, which makes it easier to confine the rectangular block inside the rectangular groove.

[0015] Preferably, the limiting device includes a first rubber ring, the connecting tube is sleeved on the surface of one end of the air inlet, the inner wall of the connecting tube is provided with a first fixing groove, the first rubber ring is disposed inside the first fixing groove, and the first rubber ring is fixedly connected to the surface of the air inlet.

[0016] The effect achieved by the above components is as follows: when using the limiting device, the connecting tube is sleeved on the surface of one end of the air inlet, thereby squeezing the first rubber ring into the inside of the first fixing groove. This can limit the connecting tube to the surface of one end of the air inlet, making it easier to set the air inlet at the location where dust accumulates through the connecting tube.

[0017] Preferably, a third damping rod is uniformly fixedly connected to one side of the filter body, and a locking ring is fixedly connected to the end of the third damping rod away from the filter body. A third spring is sleeved on the surface of the third damping rod, one end of the third spring is fixedly connected to one end of the filter body, and the end of the third spring near the third damping rod is fixedly connected to one side of the locking ring. The locking ring is slidably sleeved on the surface of the connecting pipe sleeved at the air inlet end.

[0018] The effect achieved by the above components is that the locking ring is squeezed away from the filter body by the third spring, which makes it easier to fit the locking ring onto the part of the connecting pipe that is fitted onto the surface of the air inlet.

[0019] Preferably, a rubber sleeve is fitted on the surface of the positioning ring, one end of the rubber sleeve is fixedly connected to one side of the filter body, a second fixing groove is provided on the side of the positioning ring near the air inlet, a second rubber ring is provided on the inner wall of the second fixing groove, and the second rubber ring is fixedly connected to the surface of the connecting pipe.

[0020] The effect achieved by the above components is to squeeze the second rubber ring into the interior of the second fixing groove, thereby fitting the rubber sleeve onto the surface of the locking ring, thus restricting the locking ring to the surface of the connecting pipe.

[0021] In this utility model, by setting a connecting device, when using the connecting device, the fixing plate is manually slid into the first positioning groove, and then the rubber plate is squeezed into the interior of the filter body. The reverse operation makes it easy to remove the fixing plate, and thus easy to replace the filter element. Attached Figure Description

[0022] Figure 1 A three-dimensional structural diagram of a dust filter is provided for this utility model;

[0023] Figure 2 A three-dimensional structural diagram of the novel fixing plate proposed in this utility model is provided;

[0024] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0025] Figure 4 A three-dimensional structural diagram of the novel locking ring proposed in this utility model is provided.

[0026] Legend: 1. Filter body; 2. Air inlet; 3. Air outlet; 4. Air extractor; 5. Filter element; 6. Connecting pipe; 7. Connecting device; 701. First positioning groove; 702. Fixing plate; 703. Rubber ring; 704. Rubber plate; 705. Fixing ring; 706. First damping rod; 707. First spring; 708. Limiting sleeve; 709. Rectangular groove; 710. Rectangular block; 711. Second damping rod; 712. Second spring; 713. Second positioning groove; 714. Rubber block; 8. Limiting device; 801. First fixing groove; 802. First rubber ring; 803. Locking ring; 804. Third damping rod; 805. Third spring; 806. Rubber sleeve; 807. Second fixing groove; 808. Second rubber ring. Detailed Implementation

[0027] Example 1, such as Figure 1-4 As shown, a dust filter has an air inlet 2 on one side of the filter body 1 and an air outlet 3 at the end of the filter body 1 away from the air inlet 2. An air extractor 4 is installed inside the air inlet 2, a filter element 5 is installed inside the filter body 1, a connecting device 7 is installed inside the filter body 1, a connecting pipe 6 is installed at one end of the air inlet 2, and a limit device 8 is installed on one side of the air inlet 2. When using the filter, the air extractor 4 draws air containing dust into the interior of the filter body 1, so that the dust is adsorbed on the filter element 5, and then the purified air is discharged through the air outlet 3, thus achieving the function of dust filtration.

[0028] Reference Figure 2 and Figure 3The connecting device 7 includes a fixing plate 702. A first positioning groove 701 is provided at the bottom of the filter body 1. The inner wall of the first positioning groove 701 is slidably connected to the fixing plate 702. A rubber plate 704 is fixedly connected to the top of the fixing plate 702. The rubber plate 704 is located inside the filter body 1. When using the connecting device 7, the fixing plate 702 is manually slid into the first positioning groove 701, thereby squeezing the rubber plate 704 into the filter body 1. Reversing this operation facilitates the removal of the fixing plate 702, thus facilitating the replacement of the filter element 5. A rubber ring 703 is fixedly connected to the top of the rubber plate 704, and the rubber ring 703 is fitted onto the filter element 5. The bottom surface of filter element 5 is fitted inside the rubber ring 703, which helps to confine filter element 5 to the side of the fixing plate 702 near the filter body 1. A fixing ring 705 is fixedly connected to the top of the inner wall of the filter body 1. A first damping rod 706 is fixedly connected to the top of the inner wall of the filter body 1. A limiting sleeve 708 is fixedly connected to the bottom of the first damping rod 706. The limiting sleeve 708 is fitted on the top of the filter element 5. A first spring 707 is fitted on the surface of the first damping rod 706. One end of the first spring 707 is fixedly connected to the top of the inner wall of the filter body 1. The end of the first spring 707 near the first damping rod 706 and... The top of the limiting sleeve 708 is fixedly connected. A first spring 707 presses the limiting sleeve 708 away from the inner wall of the filter body 1, thereby pressing the limiting sleeve 708 against the top of the filter element 5. This helps to confine the filter element 5 inside the filter body 1. A rectangular groove 709 is provided at the bottom of the filter body 1. A rectangular block 710 is slidably connected to the inner wall of the rectangular groove 709. A second damping rod 711 is fixedly connected to one side of the inner wall of the rectangular groove 709. The bottom of the second damping rod 711 is fixedly connected to the top of the rectangular block 710. A second spring 712 is sleeved on the surface of the second damping rod 711. One end of the second spring 712 is connected to the rectangular groove. One side of the inner wall of 709 is fixedly connected to the second spring 712, which is near the end of the second damping rod 711, and the other side of the rectangular block 710 is fixedly connected to it. The second spring 712 pulls the rectangular block 710 towards the rectangular groove 709, thereby effectively restricting the rectangular block 710 inside the rectangular groove 709. A second positioning groove 713 is provided on one side of the rectangular groove 709. A rubber block 714 is provided on the inner wall of the second positioning groove 713. One side of the rubber block 714 is fixedly connected to one side of the rectangular block 710. The rubber block 714 is squeezed into the interior of the second positioning groove 713, which facilitates the restriction of the rectangular block 710 inside the rectangular groove 709.

[0029] Reference Figure 4The limiting device 8 includes a first rubber ring 802, a connecting pipe 6 sleeved on the surface of one end of the air inlet 2, a first fixing groove 801 formed on the inner wall of the connecting pipe 6, the first rubber ring 802 disposed inside the first fixing groove 801, and the first rubber ring 802 fixedly connected to the surface of the air inlet 2. When using the limiting device 8, the connecting pipe 6 is sleeved on the surface of one end of the air inlet 2, thereby squeezing the first rubber ring 802 into the inside of the first fixing groove 801. This restricts the connecting pipe 6 to the surface of one end of the air inlet 2, making it easier to position the air inlet 2 at the dust accumulation location through the connecting pipe 6. A third damping rod 804 is uniformly fixedly connected to one side of the filter body 1. A locking ring 803 is fixedly connected to the end of the third damping rod 804 away from the filter body 1. A third spring 805 is sleeved on the surface of the third damping rod 804, and one end of the third spring 805 is fixedly connected to one end of the filter body 1. One end of the three springs 805 near the third damping rod 804 is fixedly connected to one side of the locking ring 803. The locking ring 803 is slidably sleeved on the surface of the connecting pipe 6 at the air inlet 2. The third spring 805 presses the locking ring 803 away from the filter body 1, thus facilitating the fitting of the locking ring 803 onto the part of the connecting pipe 6 that is fitted onto the surface of the air inlet 2. A rubber sleeve 806 is fitted on the surface of the locking ring 803. One end of the rubber sleeve 806 is fixedly connected to one side of the filter body 1. A second fixing groove 807 is provided on the side of the locking ring 803 near the air inlet 2. A second rubber ring 808 is provided on the inner wall of the second fixing groove 807. The second rubber ring 808 is fixedly connected to the surface of the connecting pipe 6. By pressing the second rubber ring 808 into the interior of the second fixing groove 807, the rubber sleeve 806 is fitted onto the surface of the locking ring 803, thus restricting the locking ring 803 to the surface of the connecting pipe 6.

[0030] Working principle: When using the filter, the air pump 4 draws dusty air into the filter body 1, causing the dust to be adsorbed onto the filter element 5. The purified air then exits through the outlet 3, thus achieving dust filtration. When using the connecting device 7, the bottom of the filter element 5 is fitted inside the rubber ring 703, which helps to confine the filter element 5 to the side of the fixing plate 702 near the filter body 1. The first spring 707 presses the limiting sleeve 708 away from the inner wall of the filter body 1, thereby pressing the limiting sleeve 708 against the top of the filter element 5, which helps to confine the filter element 5 inside the filter body 1. Then, the fixing plate 702 is manually slid into the first positioning groove 701, thereby pressing the rubber plate 704 into the filter body 1. The second spring 712 pulls the rectangular block 710 towards the rectangular groove 709, thus confining the rubber block 704 inside the filter body 1. 14 is pressed into the interior of the second positioning groove 713, which makes it easier to restrict the rectangular block 710 inside the rectangular groove 709. Reverse operation makes it easier to remove the fixing plate 702, thereby facilitating the replacement of the filter element 5. When using the limiting device 8, the connecting pipe 6 is sleeved on the surface of one end of the air inlet 2, thereby pressing the first rubber ring 802 into the interior of the first fixing groove 801. The third spring 805 presses the locking ring 803 away from the filter body 1, thereby making it easier to sleeve the locking ring 803 on the part of the connecting pipe 6 sleeved on the surface of the air inlet 2. The second rubber ring 808 is pressed into the interior of the second fixing groove 807, thereby sleeved the rubber sleeve 806 on the surface of the locking ring 803. This can restrict the locking ring 803 on the surface of the connecting pipe 6, thus restricting the connecting pipe 6 to the surface of one end of the air inlet 2. This makes it easier to set the air inlet 2 at the dust accumulation position through the connecting pipe 6.

[0031] It should be noted that all damping rods in this case are telescopic dampers, which can absorb energy during the extension and retraction process.

Claims

1. A dust filter, comprising a filter body (1), characterized in that: An air inlet (2) is provided on one side of the filter body (1), and an air outlet (3) is provided at the end of the filter body (1) away from the air inlet (2). An air pump (4) is provided inside the air inlet (2). A filter element (5) is provided inside the filter body (1). A connecting device (7) is provided inside the filter body (1). A connecting pipe (6) is provided at one end of the air inlet (2). A limit device (8) is provided on one side of the air inlet (2). The connecting device (7) includes a fixing plate (702). A first positioning groove (701) is provided at the bottom of the filter body (1). The inner wall of the first positioning groove (701) is slidably connected to the fixing plate (702). A rubber plate (704) is fixedly connected to the top of the fixing plate (702). The rubber plate (704) is provided inside the filter body (1).

2. A dust filter according to claim 1, characterized in that: A rubber ring (703) is fixedly connected to the top of the rubber plate (704), and the rubber ring (703) is sleeved on the bottom surface of the filter element (5).

3. A dust filter according to claim 1, characterized in that: A fixing ring (705) is fixedly connected to the top of the inner wall of the filter body (1), and a first damping rod (706) is fixedly connected to the top of the inner wall of the filter body (1). A limiting sleeve (708) is fixedly connected to the bottom of the first damping rod (706). The limiting sleeve (708) is sleeved on the top of the filter element (5). A first spring (707) is sleeved on the surface of the first damping rod (706). One end of the first spring (707) is fixedly connected to the top of the inner wall of the filter body (1), and the end of the first spring (707) near the first damping rod (706) is fixedly connected to the top of the limiting sleeve (708).

4. A dust filter according to claim 1, characterized in that: The bottom of the filter body (1) is provided with a rectangular groove (709). A rectangular block (710) is slidably connected to the inner wall of the rectangular groove (709). A second damping rod (711) is fixedly connected to one side of the inner wall of the rectangular groove (709). The bottom of the second damping rod (711) is fixedly connected to the top of the rectangular block (710). A second spring (712) is sleeved on the surface of the second damping rod (711). One end of the second spring (712) is fixedly connected to one side of the inner wall of the rectangular groove (709). The end of the second spring (712) near the second damping rod (711) is fixedly connected to one side of the rectangular block (710).

5. A dust filter according to claim 4, characterized in that: A second positioning groove (713) is provided on one side of the rectangular groove (709), and a rubber block (714) is provided on the inner wall of the second positioning groove (713). One side of the rubber block (714) is fixedly connected to one side of the rectangular block (710).

6. A dust filter according to claim 1, characterized in that: The limiting device (8) includes a first rubber ring (802), the connecting pipe (6) is sleeved on the surface of one end of the air inlet (2), the inner wall of the connecting pipe (6) is provided with a first fixing groove (801), the first rubber ring (802) is disposed inside the first fixing groove (801), and the first rubber ring (802) is fixedly connected to the surface of the air inlet (2).

7. A dust filter according to claim 1, characterized in that: A third damping rod (804) is uniformly fixedly connected to one side of the filter body (1). A locking ring (803) is fixedly connected to the end of the third damping rod (804) away from the filter body (1). A third spring (805) is sleeved on the surface of the third damping rod (804). One end of the third spring (805) is fixedly connected to one end of the filter body (1). The end of the third spring (805) close to the third damping rod (804) is fixedly connected to the side of the locking ring (803). The locking ring (803) is slidably sleeved on the surface of the connecting pipe (6) sleeved on one end of the air inlet (2).

8. A dust filter according to claim 7, characterized in that: The surface of the locking ring (803) is fitted with a rubber sleeve (806), one end of the rubber sleeve (806) is fixedly connected to one side of the filter body (1), and a second fixing groove (807) is opened on the side of the locking ring (803) near the air inlet (2). A second rubber ring (808) is provided on the inner wall of the second fixing groove (807), and the second rubber ring (808) is fixedly connected to the surface of the connecting pipe (6).

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