Pressing mechanism and filter bag cage mounting device

Abstract

The utility model relates to the technical field of filter bag installation, in particular to a hold-down mechanism and a filter bag cage installation device, the filter bag cage installation device comprises an installation assembly, the installation assembly comprises a supporting piece, a moving piece and a rotating ring, the supporting piece is slidably connected with the moving piece, the rotating ring is rotatably connected to the outer side of the moving piece, and the side wall of the rotating ring is rotatably connected with the side wall of the supporting piece; the fixing assembly comprises a connecting frame, a limiting piece and an inserting plate, and the inserting plate is matched with the limiting piece; the body assembly comprises a bag cage and a tubesheet, the top end of the bag cage is fixedly connected with the inner wall of the pressing ring, and the bag cage is arranged in a placing opening formed in the tubesheet; the pressing ring is longitudinally pressed downwards by rotating the rotating ring to press the turned edge of the filter bag between the pressing ring and the base plate, so that the filter bag is quickly fixed, the limiting piece is pushed out by the conical pressing block to be clamped with the inserting plate, the bag cage is stably arranged on the tubesheet, the filter bag can be taken out by reversely rotating the rotating ring, and the conical bottom of the bag cage is not easy to deform; the end part of the filter bag cannot be scraped and abraded, and the abrasion to the filter bag is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of filter bag installation, in particular to a pressing mechanism and a filter bag cage installation device. Background Art

[0002] At present, in the metallurgical industry, dry dust removal is the key process for purifying blast furnace gas, providing clean energy for gas users. The purification of dusty gas mainly relies on the filtration of dust filter bags in the box. The dust filter bags are supported by bag cages. The conventional bag cages have cylindrical structures at the ends, which have the following shortcomings:

[0003] The bag cage is usually hung on the flower plate by its own weight, and is prone to shaking or falling. If the dust filter bag is not firmly fixed, it is easy to slide down or fall off. When the dust filter bag is backblown, the bottom ring area at the end of the bag cage is large, which produces a large force. The bottom ring is easily deformed by the large blind plate force, squeezing the end of the filter bag and causing damage, resulting in poor filtration effect and higher dust content in the gas. Utility Model Content

[0004] The purpose of this section is to summarize some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the specification abstract and utility model name of this application to avoid blurring the purpose of this section, specification abstract and utility model name, and such simplifications or omissions cannot be used to limit the scope of the utility model.

[0005] In view of the fact that the bag cage in the above or prior art is usually hung on the flower plate by its own weight, which is easy to shake or fall, and the dust filter bag is not firmly fixed and is easy to slide down or fall off, the present utility model is proposed.

[0006] Therefore, the purpose of the utility model is to provide a clamping mechanism.

[0007] In order to solve the above technical problems, the utility model provides the following technical solutions: a clamping mechanism, which includes an installation assembly, including a support member, a movable member and a rotating ring, the support member is slidably connected to the movable member, the rotating ring is rotatably connected to the outer side of the movable member, and the side wall of the rotating ring is rotatably connected to the side wall of the support member; a fixing assembly, including an L-shaped connecting frame fixedly connected to the support member and a limiting member passing through the short side wall of the L-shaped connecting frame, and an insert plate, the insert plate cooperates with the limiting member.

[0008] As a preferred solution of the clamping mechanism of the utility model, the support member includes a chassis, a guide column and a round frame, the bottom end of the guide column is fixedly connected to the chassis, and the end of the guide column away from the chassis is connected to the round frame.

[0009] As a preferred solution of the clamping mechanism of the utility model, wherein: a convex block is arranged on the circular frame.

[0010] As a preferred solution of the clamping mechanism of the utility model, wherein: the moving part includes a pressing ring and a round sleeve, and the pressing ring is fixedly connected to one end of the round sleeve.

[0011] As a preferred solution of the clamping mechanism of the utility model, wherein: a through hole is provided on the side wall of the pressing ring, and the guide column slides in the through hole.

[0012] As a preferred solution of the clamping mechanism of the utility model, arc-shaped pressing blocks are symmetrically arranged on both sides of the pressing ring.

[0013] As a preferred solution of the clamping mechanism of the utility model, wherein: a sliding groove is longitudinally arranged on the side wall of the circular sleeve, and the protrusion slides in the sliding groove; and a threaded groove is also arranged on the outer wall of the circular sleeve.

[0014] As a preferred solution of the clamping mechanism of the utility model, wherein: a thread matching with the thread groove is arranged on the inner wall of the rotating ring.

[0015] As a preferred solution of the clamping mechanism of the utility model, the limiting member includes an arc-shaped push block, a bayonet and a spring, the arc-shaped push block is fixedly connected to one end of the bayonet, the spring is fixedly connected between the arc-shaped push block and the short side wall of the type connecting frame, the end face of the arc-shaped push block is slidably connected to the long side wall of the type connecting frame, and the plug plate cooperates with the bayonet.

[0016] The clamping mechanism of the utility model has beneficial effects: the utility model rotates the rotating ring to press the pressing ring downward longitudinally, pressing the curled edge of the filter bag between the pressing ring and the chassis, thereby quickly fixing the filter bag. The filter bag can be taken out by rotating the rotating ring in the opposite direction, and the conical pressing block pushes out the limit piece to engage with the plug plate, so that the bag cage is stably installed on the flower plate.

[0017] In actual use, when the dust filter bag is backblown, the bottom ring area at the end of the bag cage is large, generating a large force. The bottom ring is easily deformed by the large blind plate force, squeezing the end of the filter bag and causing damage, resulting in poor filtration effect and higher dust content in the gas.

[0018] In order to solve the above technical problems, the utility model also provides the following technical solutions: a filter bag cage installation device includes the clamping mechanism and a main body component, including a bag cage and a flower plate, the top of the bag cage is fixedly connected to the inner wall of the pressure ring, the bag cage is arranged in the placement opening opened in the flower plate, and the top of the bag cage is fixedly connected to the inner wall of the pressure ring.

[0019] As a preferred solution of the filter bag cage installation device of the utility model, a conical bottom ring is provided at the bottom end of the bag cage.

[0020] The utility model has the beneficial effects that the conical bottom ring design of the bag cage is not easy to deform, reduces the direct contact between the end face and the filter bag, does not scrape the end of the filter bag, and reduces the wear on the filter bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative labor. Among them:

[0022] Figure 1 It is an overall schematic diagram of the clamping mechanism.

[0023] Figure 2 It is the overall schematic diagram of the moving parts.

[0024] Figure 3 It is a schematic diagram of some parts of the clamping mechanism.

[0025] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0026] Figure 5 This is an overall schematic diagram of the filter bag cage installation device. DETAILED DESCRIPTION

[0027] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0028] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0029] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0030] Example 1

[0031] Reference Figures 1 to 4 , which is the first embodiment of the utility model, and this embodiment provides a clamping mechanism, which can quickly fix the curled edge of the filter bag mounted on the bag cage and stably install the bag cage on the flower plate, and includes a mounting assembly 100, including a support member 101, a moving member 102 and a rotating ring 103, the support member 101 is slidably connected to the moving member 102, the rotating ring 103 is rotatably connected to the outer side of the moving member 102, and the side wall of the rotating ring 103 is rotatably connected to the side wall of the support member 101; a fixing assembly 200, including an L-shaped connecting frame 201 fixedly connected to the support member 101 and a limiting member 202 that passes through the short side wall of the L-shaped connecting frame 201, and a plug plate 203, the plug plate 203 cooperates with the limiting member 202.

[0032] Specifically, the support member 101 includes a chassis 101a, a guide column 101b and a circular frame 101c. The bottom end of the guide column 101b is fixedly connected to the chassis 101a, and the end of the guide column 101b away from the chassis 101a is connected to the circular frame 101c. A plurality of guide columns 101b are evenly arranged around the chassis 101a, and the chassis 101a and the circular frame 101c are coaxially arranged.

[0033] Furthermore, a protrusion 101c-1 is provided on the circular frame 101c, and a plurality of protrusions 101c-1 are evenly provided on the inner wall of the circular frame 101c.

[0034] The movable part 102 comprises a pressure ring 102a and a circular sleeve 102b. The pressure ring 102a is fixedly connected to one end of the circular sleeve 102b. The circular sleeve 102b, the pressure ring 102a and the chassis 101a are coaxially arranged. The outer wall of the circular sleeve 102b fits and slides with the inner wall of the chassis 101a and the circular frame 101c.

[0035] Preferably, a through hole 102a-1 is provided on the side wall of the pressure ring 102a, and the guide column 101b slides in the through hole 102a-1, so that the pressure ring 102a moves between the chassis 101a and the circular frame 101c through the cooperation of the guide column 101b and the through hole 102a-1; arc-shaped pressure blocks 102a-2 are symmetrically provided on both sides of the pressure ring 102a.

[0036] Furthermore, a slide groove 102b-1 is longitudinally arranged on the side wall of the circular sleeve 102b, and a plurality of slide grooves 102b-1 are evenly arranged. The protrusion 101c-1 slides in the slide groove 102b-1 in order to restrict the circular sleeve 102b from circumferential movement.

[0037] Furthermore, a thread groove 102b-2 is provided on the outer wall of the circular sleeve 102b, and a thread 103a matching the thread groove 102b-2 is provided on the inner wall of the rotating ring 103. When the rotating ring 103 is rotated, the thread 103a engages in the thread groove 102b-2, and the protrusion 101c-1 slides in the slide groove 102b-1, restricting the circular sleeve 102b from circumferential movement. Therefore, the circular sleeve 102b slides up and down in contact with the inner walls of the chassis 101a and the circular frame 101c, and the pressure ring 102a also moves longitudinally under the drive of the circular sleeve 102b. When the rotating ring stops rotating, the thread groove 102b-2 engages with the thread 103a to form a fixation.

[0038] Furthermore, the limiting member 202 includes an arc-shaped push block 202a, a latch 202b and a spring 202c. The arc-shaped push block 202a is fixedly connected to one end of the latch 202b, and the spring 202c is fixedly connected between the arc-shaped push block 202a and the short side wall of the L-shaped connecting frame 201. The end face of the arc-shaped push block 202a is slidably connected to the long side wall of the L-shaped connecting frame 201, so as to maintain the smooth movement of the arc-shaped push block 202a.

[0039] Among them, the arc surface of the arc push block 202a cooperates with the arc surface of the arc pressure block 102a-2, and the plug plate 203 cooperates with the bayonet 202b. When the arc pressure block 102a-2 moves downward, the arc surface of the arc pressure block 102a-2 will squeeze the arc surface of the arc push block 202a to move outward. At this time, the spring between the arc push block 202a and the short side wall of the L-shaped connecting frame 201 is squeezed, and the bayonet 202b is inserted into the plug plate 203 to complete the installation.

[0040] When in use, the filter bag is put on the bag cage, the bag cage is fixedly connected to the pressure ring 102a, the curled edge of the filter bag is put between the pressure ring 102a and the bottom plate 101a, and then the rotating ring 103 is rotated to drive the round sleeve 102b to move longitudinally downward, so that the pressure ring 102a presses the curled edge of the filter bag downward between the pressure ring 102a and the bottom plate 101a, completing the fixation of the curled edge of the filter bag. At the same time, the arc-shaped pressing block 102a-2 squeezes the arc-shaped pushing block 202a to move outward, and at this time the spring 202 c is squeezed, and the latch 202b is inserted into the plug plate 203, thereby stably mounting the bag cage on the flower plate. When it is necessary to disassemble, the rotating ring 103 is rotated in the opposite direction, and the circular sleeve 102b drives the pressure ring 102a to move upward. The curling edge of the filter bag is no longer squeezed by the pressure ring 102a and the chassis 101a, and the filter bag can be taken out. At the same time, the arc-shaped pressing block 102a-2 no longer squeezes the arc-shaped pushing block 202a, and the latch 202b is separated from the plug plate 203 under the action of the spring 202c, and the disassembly is completed.

[0041] Example 2

[0042] Reference Figure 5, which is the third embodiment of the utility model. Different from the previous embodiment, this embodiment provides a filter bag cage installation device, which can reduce the direct contact between the end face and the filter bag, will not scrape the end of the filter bag and reduce the wear on the filter bag. It includes an installation component 100 and a fixing component 200, and a main body component 300, including a bag cage 301 and a flower plate 302. The top of the bag cage 301 is fixedly connected to the inner wall of the pressure ring 102a, and the bag cage 301 is arranged in the placement opening 302a opened in the flower plate 302. The top of the bag cage 301 is fixedly connected to the inner wall of the pressure ring 102a, and the plug plate 203 is fixed to the top of the flower plate 302.

[0043] Furthermore, a conical bottom ring 301 a is provided at the bottom end of the bag cage 301 .

[0044] It should be noted that the conical bottom ring 301a at the bottom end of the bag cage 301 is not in direct contact with the bottom of the filter bag, and a gap of 5-10 mm is left, in order to reduce the wear of the filter bag.

[0045] When in use, a conical bottom ring 301a is provided at the bottom end of the bag cage 301. The conical design reduces the blind plate force borne by the end of the bag cage and the bottom ring, making it less likely to deform. The conical bottom ring at the bottom end of the bag cage does not directly contact the bottom of the filter bag, leaving a gap of 5-10mm, which reduces local wear caused by the impact of gas flow and extends the service life of the filter bag.

[0046] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0047] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the spirit and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A clamping mechanism, characterized in that: include, The mounting assembly (100) comprises a supporting member (101), a moving member (102) and a rotating ring (103), wherein the supporting member (101) is slidably connected to the moving member (102), the rotating ring (103) is rotatably connected to the outer side of the moving member (102), and the side wall of the rotating ring (103) is rotatably connected to the side wall of the supporting member (101); The fixing assembly (200) comprises an L-shaped connecting frame (201) fixedly connected to the supporting member (101), a limiting member (202) penetrating the short side wall of the L-shaped connecting frame (201), and an inserting plate (203), wherein the inserting plate (203) cooperates with the limiting member (202).

2. The clamping mechanism according to claim 1, characterized in that: The support member (101) comprises a chassis (101a), a guide column (101b) and a round frame (101c); the bottom end of the guide column (101b) is fixedly connected to the chassis (101a), and one end of the guide column (101b) away from the chassis (101a) is connected to the round frame (101c).

3. The clamping mechanism according to claim 2, characterized in that: The circular frame (101c) is provided with a convex block (101c-1).

4. The clamping mechanism according to claim 3, characterized in that: The moving member (102) comprises a pressure ring (102a) and a circular sleeve (102b), wherein the pressure ring (102a) is fixedly connected to one end of the circular sleeve (102b).

5. The clamping mechanism according to claim 4, characterized in that: A through hole (102a-1) is provided on the side wall of the pressure ring (102a), and the guide column (101b) slides in the through hole (102a-1); Arc-shaped pressing blocks (102a-2) are symmetrically arranged on both sides of the pressing ring (102a).

6. The clamping mechanism according to claim 5, characterized in that: A sliding groove (102b-1) is longitudinally arranged on the side wall of the circular sleeve (102b), and the protrusion (101c-1) slides in the sliding groove (102b-1); The outer wall of the circular sleeve (102b) is also provided with a thread groove (102b-2).

7. The clamping mechanism according to claim 6, characterized in that: The inner wall of the rotating ring (103) is provided with a thread (103a) matching the thread groove (102b-2).

8. The clamping mechanism according to claim 6, characterized in that: The limiting member (202) comprises an arc-shaped push block (202a), a latch (202b) and a spring (202c); the arc-shaped push block (202a) is fixedly connected to one end of the latch (202b); the spring (202c) is fixedly connected between the arc-shaped push block (202a) and the short side wall of the L-shaped connecting frame (201); and the end surface of the arc-shaped push block (202a) is slidably connected to the long side wall of the L-shaped connecting frame (201).

9. A filter bag cage installation device, characterized in that: comprising the clamping mechanism as claimed in any one of claims 4 to 7, and The main body component (300) comprises a bag cage (301) and a flower plate (302), wherein the top end of the bag cage (301) is fixedly connected to the inner wall of the pressure ring (102a), and the bag cage (301) is arranged in a placement opening (302a) opened in the flower plate (302).

10. The filter bag cage installation device according to claim 9, characterized in that: The bottom end of the bag cage (301) is provided with a conical bottom ring (301a).

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