Filter unloading and exhausting device

Abstract

The utility model relates to the technical field of filters, in particular to a filter unloading and exhausting device. Comprising a filter cylinder, a filter mechanism and an automatic sealing mechanism, the side part of the upper end of the filter cylinder is communicated with a liquid inlet pipe; an upper cover is detachably mounted at the upper end of the filter cylinder; the top end of the upper cover is connected with an exhaust vertical pipe; the filtering mechanism is mounted on the inner side of the filtering barrel; the automatic sealing mechanism comprises a floating plate, an annular sealing ring and a sealing insertion rod, the floating plate is arranged on the inner side of the upper cover, the sealing insertion rod is vertically connected to the floating plate, the upper end of the sealing insertion rod is located on the inner side of the exhaust vertical pipe, the annular sealing ring is installed on the inner side of the exhaust vertical pipe, and the inner side of the annular sealing ring is in clearance fit with the sealing insertion rod. The exhaust vertical pipe can be automatically sealed and opened, the sealing structure is good, the exhaust vertical pipe is not prone to being polluted by impurities, and the sealing performance of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to filter technology field especially is concerned about a filter unloading exhaust device. BACKGROUND

[0002] The current bag filter and multi-core filter need to manually open the exhaust valve on the filter cartridge top cover to discharge the air in the filter cartridge when using for the first time or after replacing the filter bag or filter core. When the filter discharges liquid, the exhaust valve on the filter cartridge top cover also needs to be manually opened to let air into the filter cartridge, so as to avoid unequal pressure between the inside and outside of the filter cartridge and poor liquid discharge. Since the valve needs to be manually opened or closed, the user often forgets to open the valve, resulting in the bag filter being unable to fill with liquid, or forgets to close the exhaust valve, resulting in liquid being sprayed from the exhaust valve during the filtration cycle.

[0003] Patent No. CN217067992U discloses an automatic exhaust device for filter, relating to the technical field of filter. Among them, the automatic exhaust device for filter includes: filter cartridge body; filter cartridge top cover, which is detachably connected with the filter cartridge body; exhaust main body, which is arranged at the center of the filter cartridge top cover; floating ball cover, which is arranged at the bottom of the exhaust main body; and hollow floating ball, which is movably arranged in the exhaust main body.

[0004] The above-mentioned patent still has the following technical defects: since the hollow floating ball is directly in contact with the liquid, impurities in the liquid can easily adhere to its surface, and some impurities and dirt adhering to the surface of the hollow floating ball can greatly reduce its sealing performance. UTILITY MODEL CONTENTS

[0005] The utility model aims at the problems in the background art and provides a filter unloading exhaust device.

[0006] The technical scheme of the utility model relates to a filter unloading exhaust device, which comprises:

[0007] The filter cartridge body is provided with a liquid inlet pipe at the upper end side; an upper cover is detachably installed at the upper end of the filter cartridge body; an exhaust vertical pipe is connected to the top end of the upper cover, and the exhaust vertical pipe is in communication with the inside of the filter cartridge body; and a liquid outlet pipe is arranged at the bottom end of the filter cartridge body;

[0008] The filter mechanism is installed on the inside of the filter cartridge body.

[0009] The automatic sealing mechanism comprises a floating plate, an annular sealing ring and a sealing plug rod, wherein the floating plate is arranged on the inside of the upper cover, the sealing plug rod is vertically connected to the floating plate, the upper end of the sealing plug rod is located on the inside of the exhaust vertical pipe, the sealing plug rod is coaxially arranged with the exhaust vertical pipe, the annular sealing ring is installed on the inside of the exhaust vertical pipe, and the inside of the annular sealing ring is in clearance fit with the sealing plug rod.

[0010] Preferably, the filtering mechanism comprises a plurality of small filters, the inner side of the filtering cylinder is horizontally provided with a partition plate, the plurality of small filters are all penetrated through the upper and lower ends of the partition plate, and the liquid inlet hole of the upper end of the small filter is flush with the upper end surface of the partition plate.

[0011] Preferably, the small filter is a cylindrical structure, the upper end of the small filter is provided with an opening, and the lower end of the small filter is provided with a seal.

[0012] Preferably, the upper end of the exhaust vertical pipe is communicated with a bend pipe, and the bend pipe is of an 'n' type structure.

[0013] Preferably, the upper end of the float plate is provided with a counterweight.

[0014] Preferably, the bottom end of the exhaust vertical pipe is provided with a sealing ring, and the counterweight is in clearance fit with the upper part of the inner cavity of the upper cover.

[0015] Preferably, the inner side of the upper cover is vertically connected with a guide rod, the float plate is slidingly arranged on the guide rod, and the inner side of the upper cover is provided with a limiting block.

[0016] Preferably, when the float plate is in contact with the limiting block, the sealing plug rod is separated from the inner side of the annular sealing ring, and when the float plate moves upward to a limited position, the upper end of the sealing plug rod is inserted into the inner side of the annular sealing ring.

[0017] Compared with the prior art, the utility model has the beneficial technical effects that:

[0018] 1. Through cooperation of the float plate, the annular sealing ring, the sealing plug rod and the exhaust vertical pipe, automatic opening and closing of the exhaust vertical pipe can be realized, and the degree of automation is high.

[0019] 2. The sealing element (the annular sealing ring and the sealing plug rod) arranged in the technical scheme is not in contact with liquid, so that impurities in the liquid cannot contaminate the annular sealing ring and the sealing plug rod, and good sealing performance between the annular sealing ring and the sealing plug rod is realized.

[0020] 3. The sealing plug rod can remove small impurities on the contact surface of the annular sealing ring and the sealing plug rod by friction with the inner side of the annular sealing ring during movement, and even if small impurities enter, the sealing performance between the annular sealing ring and the sealing plug rod is not affected. DRAWINGS

[0021] Figure 1 It is a structural schematic view of the utility model.

[0022] Figure 2 It is a sectional view of the utility model.

[0023] Figure 3 It is a sectional view of the utility model. Figure 2 ​

[0024] Reference numerals: 1, filter cylinder body; 2, upper cover; 3, partition board; 4, small filter; 5, drain pipe; 6, exhaust vertical pipe; 7, elbow pipe; 8, counterweight; 9, floating plate; 10, limit block; 11, liquid inlet pipe; 12, annular sealing ring; 13, sealing plug rod; 14, sealing ring. Specific embodiments

[0025] Embodiment 1

[0026] As Figures 1-3 shown, a filter unloading and exhaust device proposed in this embodiment includes a filter cylinder body 1, a filtering mechanism, and an automatic sealing mechanism.

[0027] A liquid inlet pipe 11 is communicated and arranged on the upper end side of the filter cylinder body 1; an upper cover 2 is detachably installed at the upper end of the filter cylinder body 1; an exhaust vertical pipe 6 is connected to the top end of the upper cover 2, and the exhaust vertical pipe 6 is communicated with the inside of the filter cylinder body 1; an elbow pipe 7 is communicated and arranged at the upper end of the exhaust vertical pipe 6, and the elbow pipe 7 has an "n" - shaped structure. Through the setting of the above - mentioned structure, the probability of impurities entering the inside of the exhaust vertical pipe 6 can be reduced; a drain pipe 5 is communicated and arranged at the bottom end of the filter cylinder body 1; the filtering mechanism is installed inside the filter cylinder body 1.

[0028] The automatic sealing mechanism includes a floating plate 9, an annular sealing ring 12, and a sealing plug rod 13. Among them, the floating plate 9 is arranged inside the upper cover 2, a counterweight 8 is arranged at the upper end of the floating plate 9, and the setting of the counterweight 8 is used to assist the sealing plug rod 13 to quickly separate from the inside of the annular sealing ring 12. The sealing plug rod 13 is vertically connected to the floating plate 9, the upper end of the sealing plug rod 13 is located inside the exhaust vertical pipe 6, the sealing plug rod 13 and the exhaust vertical pipe 6 are coaxially arranged, the annular sealing ring 12 is installed inside the exhaust vertical pipe 6, and the inside of the annular sealing ring 12 has a clearance fit with the sealing plug rod 13; when the floating plate 9 contacts the limit block 10, the sealing plug rod 13 separates from the inside of the annular sealing ring 12. When the floating plate 9 moves upward to the limit position, at this time, the upper end of the sealing plug rod 13 is inserted into the inside of the annular sealing ring 12; a guide rod is vertically connected to the inside of the upper cover 2, the floating plate 9 is slidably arranged on the guide rod, and a limit block 10 is arranged inside the upper cover 2. The arranged limit block 10 is used to prevent the floating plate 9 from continuing to move downward.

[0029] A sealing ring 14 is arranged at the bottom end of the exhaust vertical pipe 6; the counterweight 8 has a clearance fit with the upper part of the inner cavity of the upper cover 2. When the upper end of the counterweight 8 contacts the sealing ring 14, two - stage sealing can be achieved.

[0030] Specifically, the liquid enters the interior of the filter cylinder body 1 through the liquid inlet pipe 11. In the initial state, the floating plate 9 contacts the limit block 10. At this time, the sealing plug 13 is separated from the annular sealing ring 12. During the filtering process, the gas inside the filter cylinder body 1 is discharged through the exhaust vertical pipe 6. When the filter cylinder body 1 is full of liquid, the floating plate 9 moves upward under the action of buoyancy. The floating plate 9 also drives the sealing plug 13 to move, so that the sealing plug 13 is inserted into the inner side of the annular sealing ring 12 to achieve the sealing effect, preventing the liquid from spraying out through the exhaust vertical pipe 6.

[0031] In this technical solution, through the cooperation of the floating plate 9, the annular sealing ring 12, the sealing plug 13 and the exhaust vertical pipe 6, the automatic opening and closing of the exhaust vertical pipe 6 can be realized, with a high degree of automation. The annular sealing ring 12 and the sealing plug 13 do not come into contact with the liquid, so the impurities in the liquid will not pollute the annular sealing ring 12 and the sealing plug 13, achieving good sealing between the annular sealing ring 12 and the sealing plug 13. Moreover, during the movement of the sealing plug 13, fine impurities on the contact surface between the annular sealing ring 12 and the sealing plug 13 can be removed by friction with the inner side of the annular sealing ring 12. Even if fine impurities enter, they will not affect the sealing performance between the annular sealing ring 12 and the sealing plug 13.

[0032] Embodiment 2

[0033] As Figure 2 shown, a filter unloading and exhaust device proposed in this embodiment, compared with Embodiment 1, in this embodiment, the filtering mechanism includes a plurality of small filters 4. A partition plate 3 is horizontally arranged inside the filter cylinder body 1. The upper and lower ends of the partition plate 3 are penetrated by a plurality of small filters 4. The liquid inlet holes at the upper ends of the small filters 4 are flush with the upper end surface of the partition plate 3; the small filters 4 are of a cylindrical structure, with an open upper end and a sealed lower end; by providing a plurality of small filters 4 compared with providing a single large cylindrical filter screen, the contact area with the water body is larger and the filtering effect is better.

[0034] The above has described the embodiments of the present invention in detail with reference to the drawings. However, the present invention is not limited to this. Various changes can be made without departing from the gist of the present invention within the scope of knowledge possessed by those skilled in the art.

Claims

1. A filter unloading exhaust device characterized by, The utility model relates to a filter device, including: A filter cylinder (1), the upper end side of filter cylinder (1) is provided with inlet pipe (11) in communication, the upper end of filter cylinder (1) is detachably installed with upper cover (2), the top of upper cover (2) is connected with exhaust vertical pipe (6), and exhaust vertical pipe (6) is communicated with the inside of filter cylinder (1), the bottom of filter cylinder (1) is provided with outlet pipe (5) in communication, Filter mechanism, filter mechanism is installed in the inside of filter cylinder (1), Automatic sealing mechanism, automatic sealing mechanism includes floating plate (9), annular sealing ring (12) and sealing plug rod (13), wherein, floating plate (9) is located in the inside of upper cover (2), sealing plug rod (13) is vertically connected on floating plate (9), the upper end of sealing plug rod (13) is located in the inside of exhaust vertical pipe (6), sealing plug rod (13) is coaxially arranged with exhaust vertical pipe (6), annular sealing ring (12) is installed in the inside of exhaust vertical pipe (6), the inside of annular sealing ring (12) is gap matched with sealing plug rod (13).

2. A filter unloading venting device according to claim 1, wherein Filter mechanism includes multiple small filters (4), the inside of filter cylinder (1) is horizontally provided with baffle (3), multiple small filters (4) all penetrate the upper and lower ends of baffle (3), and the upper end inlet hole of small filter (4) is flush with the upper end surface of baffle (3).

3. A filter unloading venting device according to claim 2, wherein, Small filter (4) is cylindrical structure, and the upper end is provided with opening, and the lower end is provided with sealing.

4. The filter unloading vent apparatus of claim 1, wherein, The upper end of exhaust vertical pipe (6) is provided with elbow pipe (7) in communication, and elbow pipe (7) is "n" type structure.

5. The filter unloading vent apparatus of claim 1, wherein, The upper end of floating plate (9) is provided with counterweight (8).

6. A filter unloading venting device according to claim 5, wherein, The bottom of exhaust vertical pipe (6) is provided with sealing ring (14), and counterweight (8) is gap matched with the upper portion of the inner chamber of upper cover (2).

7. The filter unloading vent apparatus of claim 1, wherein, The inside of upper cover (2) is vertically connected with guide rod, and floating plate (9) is slidably arranged on the guide rod, and the inside of upper cover (2) is provided with limit block (10).

8. A filter unloading venting device according to claim 7, wherein, When floating plate (9) contacts limit block (10), sealing plug rod (13) is separated from the inside of annular sealing ring (12), when floating plate (9) moves upwards to the limited position, the upper end of sealing plug rod (13) is inserted into the inside of annular sealing ring (12) at this time.

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