CN219663013U - Bag filter hold-down mechanism - Google Patents

Abstract

The utility model discloses a bag filter compressing mechanism, which comprises an upper compressing assembly and a lower compressing assembly, wherein the upper compressing assembly is positioned above a retainer ring of a bag filter main body; the upper pressing assembly comprises a limiting block, a spring and an upper pressing block, the limiting block is fixed on the upper portion of the inner cavity of the bag filter main body, the upper pressing block is slidably connected in the inner cavity of the limiting block, the bottom end of the upper pressing block penetrates out of the limiting block, an inclined tangent plane is arranged at the bottom of the upper pressing block along the circumferential direction, and the spring is vertically connected between a top plate of the limiting block and the upper pressing block; the lower part compresses tightly the subassembly and includes clamp plate, lower briquetting and connecting rod, and the clamp plate is the ring form, and lower briquetting is provided with two and evenly arranges on clamp plate upper portion along the circumferencial direction, and lower briquetting top is provided with the chamfer, and the connecting rod setting is used for rotating lower part and compresses tightly the subassembly between lower briquetting. The bag filter compressing mechanism has good structural stability, two ends are uniformly compressed, and the sealing is tight.

Description

Bag filter hold-down mechanism

Technical Field

The utility model relates to the technical field of bag filters, in particular to a pressing mechanism of a bag filter.

Background

The inside of the bag filter is supported by a metal basket, liquid flows in from an inlet, flows out from an outlet after being filtered by the filter bag, impurities are intercepted in the filter bag, and the filter bag can be continuously used after being replaced.

In the utility model, a compressing component is mainly arranged at the sealing part of a filter cartridge and a retainer ring of the bag filter, the compressing component comprises a compression ring, a first compression plate, a second compression plate and a spring which are assembled by welding, the filter cartridge is placed on a first step surface, a filter bag is placed in the filter cartridge, the second step surface on the compression ring stretches into the filter cartridge, so that a section of top opening of the filter cartridge is pressed between the top of the first step surface and the bottom of the compression ring, meanwhile, the side surface of the filter cartridge is pressed by the side surface of the second step and the side surface of the first step surface, the filter bag is pressed on the filter cartridge through the compression ring, the rapid compression of the ring opening of the filter bag can be realized, the rapid sealing and compression can be realized, the convenience of disassembling the filter bag is realized, the leakage is avoided, and the filtering performance of the bag type filter is improved.

The spring pressing sealing device of the bag filter needs to press down the second pressing plate manually during installation, so that the second pressing plate is clamped on the inner wall of the bag filter. The first pressing plate and the second pressing plate are connected by only one spring, so that the structure stability is poor, the welding root is easy to break, and the welding root is damaged.

Therefore, there is a need to develop a bag filter hold-down mechanism that addresses the above-described drawbacks.

Disclosure of Invention

The utility model aims to provide a compressing mechanism of a bag filter, which has good structural stability, and both ends are uniformly compressed and tightly sealed.

In order to solve the technical problems, the utility model adopts the following technical scheme:

the utility model relates to a bag filter pressing mechanism, which is arranged in a bag filter main body and can press a bag mouth of a filter cartridge and a filter bag, and comprises an upper pressing assembly and a lower pressing assembly, wherein the upper pressing assembly is provided with two pressing assemblies and is uniformly arranged in the inner cavity of the bag filter main body along the circumferential direction, the upper pressing assembly is positioned above a retainer ring of the bag filter main body, and the lower pressing assembly is arranged between the upper pressing assembly and the retainer ring and is matched with the upper pressing assembly to press the filter cartridge and the filter bag; the upper pressing assembly comprises a limiting block, a spring and an upper pressing block, the limiting block is fixed on the upper portion of the inner cavity of the bag filter main body, the upper pressing block is connected in the inner cavity of the limiting block in a sliding mode, the bottom end of the upper pressing block penetrates out of the limiting block, an inclined surface is arranged at the bottom of the upper pressing block along the circumferential direction, and the spring is vertically connected between a top plate of the limiting block and the upper pressing block; the lower part compresses tightly the subassembly and includes clamp plate, lower briquetting and connecting rod, the clamp plate is the ring shape, lower briquetting is provided with two and follows the even arrangement of circumferencial direction clamp plate upper portion, lower briquetting top be provided with the chamfer and with the chamfer of last briquetting bottom suits, the connecting rod sets up two be used for rotating between the lower briquetting lower part compresses tightly the subassembly.

Further, the pressing plate is provided with a first step and a second step, the first step is located above the second step, the first step is used for pressing the top of the filter cartridge and the top of the filter bag, and the outer diameter of the second step is matched with the inner diameter of the filter cartridge and is used for pressing the side surfaces of the filter cartridge and the filter bag.

Further, the upper part of the vertical side surface of the upper pressing block is provided with a bulge; the limiting block is a U-shaped plate, the U-shaped opening direction of the limiting block faces the center of the bag filter main body, through holes are formed in the middle of two side plates of the limiting block, the protrusions are matched with the through holes, and the vertical side faces of the upper pressing block are matched with the inner side faces of the two side plates of the limiting block.

Further, the top plate is connected to the top of the limiting block through a screw.

Further, the upper pressing block bottom is provided with chamfer surfaces on two side surfaces along the circumferential direction, the lower pressing block top is provided with chamfer surfaces and is adaptive to the chamfer surfaces of the upper pressing block bottom, and the middle part of the lower pressing block top is a horizontal plane.

Further, the top of the lower pressing block is provided with a groove which is matched with the bottom of the upper pressing block.

Further, the lower pressing block faces to the central direction of the bag filter main body and is fixedly provided with a vertical connecting ring, the connecting rod is a U-shaped rod, and the connecting rod is detachably inserted into the connecting ring.

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

according to the bag filter pressing mechanism, the corresponding chamfer faces are arranged on the upper pressing block and the lower pressing block, and when the bag filter pressing mechanism is installed, a part of horizontal force of the horizontally rotating lower pressing component can be converted into vertical force, so that the upper pressing block is pushed to move upwards, the installation is labor-saving, and the installation is convenient. Through setting up the spring, when briquetting rotates to last briquetting below down, the spring is in compression state, can promote to go up the briquetting and compress tightly lower part and compress tightly the subassembly downwards for the clamp plate compresses tightly filter cartridge and filter bag, and structural stability is good, and both ends evenly compress tightly, and seal tightly. When the pressing assembly of the lower part needs to be disassembled, the pressing assembly of the lower part only needs to be continuously rotated, so that the lower pressing block is moved out of the outer side of the upper pressing block, and the disassembly is convenient. The bag filter compressing mechanism has good structural stability, two ends are uniformly compressed, and the sealing is tight.

In addition, through setting up first step and second step, increase the clamp plate and compress tightly the area, guarantee to strain a jar and filter bag seal tightly. Through setting up the stopper to the U template, increased the thickness of last briquetting, and then can select the great spring of elasticity, guarantee to strain a jar and filter bag seal tightly, combine spout and arch and the through-hole that suits to play spacing effect to last briquetting, guarantee the vertical side of going up the briquetting in the top of the vertical side of briquetting and the stability of last briquetting reciprocates down, avoid the dislocation. Through screw connection roof, can be fast unloaded, be convenient for maintain or change spring and last briquetting. Through setting up the recess, play limiting displacement to last briquetting under the state of compressing tightly, avoid down the briquetting by rivers impulsion, guarantee the stability of state of compressing tightly. Through setting up the go-between, can take out the connecting rod after installing the lower part and compress tightly the subassembly, avoid the connecting rod to block in the water gets into the filter bag.

Drawings

The utility model is further described with reference to the following description of the drawings.

FIG. 1 is a schematic view showing a cross-sectional structure in a non-compressed state in example 1;

fig. 2 is a schematic view showing a sectional front view in a compressed state in embodiment 1;

FIG. 3 is a schematic front view of the lower compressing assembly of embodiment 1;

FIG. 4 is a schematic top view of the lower pressing assembly of example 1;

FIG. 5 is an enlarged schematic view of the structure of FIG. 2A;

FIG. 6 is an enlarged schematic view of the structure of FIG. 2B;

FIG. 7 is a schematic diagram of a front view structure of the upper pressing block;

FIG. 8 is a schematic front view of the lower compressing assembly of embodiment 2;

fig. 9 is a schematic top view of the lower pressing assembly of embodiment 2.

Reference numerals illustrate: 1. a bag filter body; 2. an upper compression assembly; 201. a limiting block; 201a, a top plate; 201b, through holes; 202. a spring; 203. pressing into blocks; 203a, protrusions; 3. a lower compression assembly; 301. a pressing plate; 301a, a first step; 301b a second step; 302. pressing the block; 302a, grooves; 303. a connecting rod; 304. a connecting ring; 4. a retainer ring; 5. a filter cartridge; 6. and (5) filtering the bag.

Detailed Description

The core of the utility model is to provide a compressing mechanism of the bag filter, which has good structural stability, and both ends are uniformly compressed and tightly sealed.

The following description of the embodiments of the present utility model will be made in detail with reference to the accompanying drawings, wherein it is apparent that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Referring to the drawings, fig. 1 is a schematic cross-sectional front view of embodiment 1 in an uncompacted state; fig. 2 is a schematic view showing a sectional front view in a compressed state in embodiment 1; FIG. 3 is a schematic front view of the lower compressing assembly of embodiment 1; FIG. 4 is a schematic top view of the lower pressing assembly of example 1; FIG. 5 is an enlarged schematic view of the structure of FIG. 2A; FIG. 6 is an enlarged schematic view of the structure of FIG. 2B; FIG. 7 is a schematic diagram of a front view structure of the upper pressing block; FIG. 8 is a schematic front view of the lower compressing assembly of embodiment 2; fig. 9 is a schematic top view of the lower pressing assembly of embodiment 2.

Example 1

As shown in fig. 1, 2 and 5, a bag filter pressing mechanism is provided, which is arranged in a bag filter main body 1 and can press a bag mouth of a filter cartridge 5 and a filter bag 6, and comprises an upper pressing component 2 and a lower pressing component 3, wherein the upper pressing component 2 is provided with two inner cavities uniformly arranged in the bag filter main body 1 along the circumferential direction, the upper pressing component 2 is fixed above a retainer ring 4 of the bag filter main body 1, and the lower pressing component 3 is arranged between the upper pressing component 2 and the retainer ring 4 and is matched with the upper pressing component 2 to press the filter cartridge 5 and the filter bag 6. The upper pressing assembly 2 comprises a limiting block 201, a spring 202 and an upper pressing block 203, wherein the limiting block 201 is fixed on the upper portion of an inner cavity of the bag filter main body 1, the upper pressing block 203 is slidably connected in the inner cavity of the limiting block 201, the bottom end of the upper pressing block 203 penetrates out of the limiting block 201, a chamfer is arranged at the bottom of the upper pressing block 203 along the circumferential direction, and the spring 202 is vertically connected between a top plate 201a of the limiting block 201 and the upper pressing block 203. The lower pressing assembly 3 comprises a pressing plate 301, a lower pressing block 302 and a connecting rod 303, wherein the pressing plate 301 is in a circular ring shape, the lower pressing block 302 is provided with two pressing plates 301 which are uniformly arranged on the upper portion of the pressing plate 301 along the circumferential direction, the top of the lower pressing block 302 is provided with a chamfer surface which is matched with the chamfer surface of the bottom of the upper pressing block 203, and the connecting rod 303 is welded between the two lower pressing blocks 302 and used for rotating the lower pressing assembly 3.

Through setting up corresponding chamfer on last briquetting 203 and lower briquetting 302, can change the horizontal force's of horizontal rotation lower part compression module 3 part into vertical force during the installation, promote the upward movement of last briquetting 203, the installation is laborsaving, the installation of being convenient for. Through setting up spring 202, when lower briquetting 302 rotates to last briquetting 203 below, spring 202 is in compressed state, can promote and go up briquetting 203 and compress tightly lower part and compress tightly subassembly 3 downwards for clamp plate 301 compresses tightly filter cartridge 5 and filter bag 6, and structural stability is good, and both ends evenly compress tightly, and is sealed tight. When the lower pressing assembly 3 needs to be disassembled, only the lower pressing assembly 3 needs to be continuously rotated, so that the lower pressing block 302 moves out of the outer side of the upper pressing block 203, and the disassembly is convenient. The bag filter compressing mechanism has good structural stability, two ends are uniformly compressed, and the sealing is tight.

As shown in fig. 1 to 3 and 6, the pressing plate 301 is provided with a first step 301a and a second step 301b, the first step 301a is located above the second step 301b, the first step 301a is used for pressing the top of the filter cartridge 5 and the filter bag 6, and the outer diameter of the second step 301b is matched with the inner diameter of the filter cartridge 5 for pressing the side surfaces of the filter cartridge 5 and the filter bag 6.

By arranging the first step 301a and the second step 301b, the pressing area of the pressing plate 301 is increased, and the filter cartridge 5 and the filter bag 6 are ensured to be tightly sealed.

As shown in fig. 2, 5 and 7, the upper portion of the vertical side of the upper press block 203 is provided with a protrusion 203a. The stopper 201 is the U template, and the U type opening direction of stopper 201 is towards the center of bag filter main part 1, and stopper 201 both sides board middle part is provided with through-hole 201b, and protruding 203a suits with through-hole 201b, and the vertical side of going up briquetting 203 suits with the medial surface of stopper 201 both sides board.

Specifically, the top plate 201a is connected to the top of the stopper 201 by a screw.

Specifically, as shown in fig. 2 and 7, the bottom of the upper press block 203 is provided with chamfer surfaces on both sides in the circumferential direction, the top of the lower press block 302 is provided with a chamfer surface and is adapted to the chamfer surface of the bottom of the upper press block 203, and the middle part of the top of the lower press block 302 is a horizontal plane.

Through setting the stopper to the U template, increased the thickness of last briquetting 203, and then can select the great spring 202 of elasticity, guarantee to strain a jar 5 and filter bag 6 tight seal, combine chute and protruding 203a and the through-hole 201b that suits to play spacing effect to last briquetting 203, guarantee the stability that the vertical side of last briquetting 203 reciprocated in the top of the vertical side of lower briquetting 302 and last briquetting 203, avoid the dislocation. By screw-coupling the top plate 201a, quick detachment is possible, facilitating maintenance or replacement of the spring 202 and the upper press block 203.

As shown in fig. 4, the top of the lower press block 302 is provided with a groove 302a corresponding to the bottom of the upper press block 203.

By arranging the groove 302a, the upper pressing block 203 in the pressing state is limited, the lower pressing block 302 is prevented from being impacted by water flow, and the stability of the pressing state is ensured.

When the bag filter pressing mechanism of the embodiment is used, the lower pressing assembly 3 is placed above the retainer ring 4 on which the filter cartridge 5 and the filter bag 6 are already installed, the lower pressing assembly 3 is rotated to enable the chamfer surface of the lower pressing block 302 to be in contact with the chamfer surface of the upper pressing block 203 through the connecting rod 303, at the moment, part of horizontal force is converted into vertical force at the chamfer surface of the lower pressing block 302 to push the upper pressing block 203 to move upwards, the bottom end of the upper pressing block 203 which moves upwards is in contact with the top end of the lower pressing block 302 before the bottom end of the upper pressing block 203 contacts with the top end of the lower pressing block 302, and the lower pressing assembly 3 is continuously rotated until the bottom end of the lower pressing block 302 moves into the groove 302a, so that the filter cartridge 5 and the filter bag 6 can be pressed. When the filter cartridge 5 and the filter bag 6 need to be cleaned, the lower pressing assembly 3 only needs to be continuously rotated, so that the lower pressing block 302 moves out of the upper pressing block 203, and the lower pressing assembly 3, the filter cartridge 5 and the filter bag 6 are sequentially taken out.

Example 2

The connection lever 303 is modified to be a detachable structure on the basis of the above embodiment 1. As shown in fig. 8 and 9, a vertical connecting ring 304 is fixed on the lower pressing block 302 toward the center direction of the bag filter main body 1, the connecting rod 303 is a U-shaped rod, and the vertical ends of both ends of the connecting rod 303 are detachably inserted into the connecting ring 304.

Through setting up go-between 304, can take out connecting rod 303 after installing lower part and compress tightly the subassembly 3, avoid connecting rod 303 to block the water and get into in the filter bag 6.

According to the bag filter pressing mechanism, the upper pressing block 203 and the lower pressing block 302 are provided with the corresponding chamfer surfaces, so that a part of horizontal force of the horizontally rotating lower pressing assembly 3 can be converted into vertical force during installation, the upper pressing block 203 is pushed to move upwards, the installation is labor-saving, and the installation is convenient. Through setting up spring 202, when lower briquetting 302 rotates to last briquetting 203 below, spring 202 is in compressed state, can promote and go up briquetting 203 and compress tightly lower part and compress tightly subassembly 3 downwards for clamp plate 301 compresses tightly filter cartridge 5 and filter bag 6, and structural stability is good, and both ends evenly compress tightly, and is sealed tight. When the lower pressing assembly 3 needs to be disassembled, only the lower pressing assembly 3 needs to be continuously rotated, so that the lower pressing block 302 moves out of the outer side of the upper pressing block 203, and the disassembly is convenient. The bag filter compressing mechanism has good structural stability, two ends are uniformly compressed, and the sealing is tight. In addition, by arranging the first step 301a and the second step 301b, the pressing area of the pressing plate 301 is increased, and the filter cartridge 5 and the filter bag 6 are ensured to be tightly sealed. Through setting the stopper to the U template, increased the thickness of last briquetting 203, and then can select the great spring 202 of elasticity, guarantee to strain a jar 5 and filter bag 6 tight seal, combine chute and protruding 203a and the through-hole 201b that suits to play spacing effect to last briquetting 203, guarantee the stability that the vertical side of last briquetting 203 reciprocated in the top of the vertical side of lower briquetting 302 and last briquetting 203, avoid the dislocation. By screw-coupling the top plate 201a, quick detachment is possible, facilitating maintenance or replacement of the spring 202 and the upper press block 203. By arranging the groove 302a, the upper pressing block 203 in the pressing state is limited, the lower pressing block 302 is prevented from being impacted by water flow, and the stability of the pressing state is ensured. Through setting up go-between 304, can take out connecting rod 303 after installing lower part and compress tightly the subassembly 3, avoid connecting rod 303 to block the water and get into in the filter bag 6.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The above embodiments are only illustrative of the preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model, and various modifications and improvements made by those skilled in the art to the technical solutions of the present utility model should fall within the protection scope defined by the claims of the present utility model without departing from the design spirit of the present utility model.

Claims (7)

1. The utility model provides a pocket type filter hold-down mechanism, sets up in pocket type filter main part (1) and can compress tightly the sack of straining a section of thick bamboo (5) and filter bag (6), its characterized in that: the filter comprises an upper compression assembly (2) and a lower compression assembly (3), wherein the upper compression assembly (2) is arranged in the inner cavity of the bag filter main body (1) uniformly along the circumferential direction, the upper compression assembly (2) is positioned above a retainer ring (4) of the bag filter main body (1), and the lower compression assembly (3) is arranged between the upper compression assembly (2) and the retainer ring (4) and is matched with the upper compression assembly (2) to compress the filter cartridge (5) and the filter bag (6);

the upper pressing assembly (2) comprises a limiting block (201), a spring (202) and an upper pressing block (203), wherein the limiting block (201) is fixed on the upper portion of an inner cavity of the bag-type filter main body (1), the upper pressing block (203) is slidably connected in the inner cavity of the limiting block (201) and the bottom end of the upper pressing block penetrates out of the limiting block (201), an inclined surface is arranged at the bottom of the upper pressing block (203) along the circumferential direction, and the spring (202) is vertically connected between a top plate (201 a) of the limiting block (201) and the upper pressing block (203);

the lower part compresses tightly subassembly (3) including clamp plate (301), lower briquetting (302) and connecting rod (303), clamp plate (301) are the ring, lower briquetting (302) are provided with two and follow the even arrangement of circumferencial direction clamp plate (301) upper portion, lower briquetting (302) top be provided with the chamfer and with the chamfer of last briquetting (203) bottom suits, connecting rod (303) set up two be used for rotating between lower briquetting (302) lower part compresses tightly subassembly (3).

2. The bag filter compression mechanism of claim 1, wherein: the pressing plate (301) is provided with a first step (301 a) and a second step (301 b), the first step (301 a) is located above the second step (301 b), the first step (301 a) is used for pressing the top of the filter cartridge (5) and the filter bag (6), and the outer diameter of the second step (301 b) is matched with the inner diameter of the filter cartridge (5) and is used for pressing the side surfaces of the filter cartridge (5) and the filter bag (6).

3. The bag filter compression mechanism of claim 1, wherein: the upper part of the vertical side surface of the upper pressing block (203) is provided with a bulge (203 a); the limiting block (201) is a U-shaped plate, the U-shaped opening direction of the limiting block (201) faces the center of the bag filter main body (1), through holes (201 b) are formed in the middle of two side plates of the limiting block (201), protrusions (203 a) are matched with the through holes (201 b), and the vertical side faces of the upper pressing block (203) are matched with the inner side faces of the two side plates of the limiting block (201).

4. A bag filter compression mechanism as defined in claim 3, wherein: the top plate (201 a) is connected to the top of the limiting block (201) through a screw.

5. The bag filter compression mechanism of claim 1, wherein: the upper pressing block (203) is characterized in that chamfer surfaces are arranged on two side surfaces of the bottom of the upper pressing block (203) along the circumferential direction, chamfer surfaces are arranged on two side surfaces of the top of the lower pressing block (302) along the circumferential direction, the top of the lower pressing block (302) is provided with the chamfer surfaces and is adaptive to the chamfer surfaces of the bottom of the upper pressing block (203), and the middle part of the top of the lower pressing block (302) is a horizontal plane.

6. The bag filter compression mechanism of claim 1, wherein: the top of the lower pressing block (302) is provided with a groove (302 a) which is matched with the bottom of the upper pressing block (203).

7. The bag filter compression mechanism of claim 6, wherein: the vertical connecting ring (304) is fixed on the lower pressing block (302) towards the center direction of the bag filter main body (1), the connecting rod (303) is a U-shaped rod, and the connecting rod (303) is detachably inserted into the connecting ring (304).