A kind of fixing clamp for bag filter injection pipe head

CN224358174UActive Publication Date: 2026-06-16QUANZHOU FENGPENG ENVIRONMENTAL PROTECTION TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
QUANZHOU FENGPENG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2026-05-11
Publication Date
2026-06-16

AI Technical Summary

Technical Problem

The existing bag filter dust collector's blowpipe head fixing device is cumbersome to disassemble and assemble, requiring tools, resulting in low equipment maintenance efficiency and inability to withstand the vibration and impact generated by pulse jet cleaning, affecting the stability and accuracy of dust removal operations.

Method used

A fixing clamp comprising a positioning ring, a fixing seat, and a fixing component was designed. Through a hinged structure and elastic design, it enables tool-free quick assembly and disassembly of the blowpipe head, and can adapt to assembly errors, enhancing stability and vibration resistance.

🎯Benefits of technology

The assembly process of the blowpipe head has been simplified, the efficiency of equipment inspection and maintenance has been improved, the stability and accuracy of dust removal operations have been ensured, and the service life of the device has been extended.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224358174U_ABST
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Abstract

The utility model belongs to cloth bag dust catcher accessory technical field, and disclose a kind of for cloth bag dust catcher injection pipe head fixing clamp, including injection pipe body, the outer surface of injection pipe body is integrally formed with positioning ring, the outer surface of the positioning ring is sleeved with fixed seat one and fixed seat two, the fixed seat one and fixed seat two are all half ring, and fixed seat one and fixed seat two are mutually hinged, the inner surface of the fixed seat one and fixed seat two is all set with the fixed groove of cooperation positioning ring use, the outer surface of fixed seat one is integrally formed with assembly plate one, the utility model is hinged with fixed seat one and fixed seat two, under the action of fixed component, the tool-free quick disassembly of injection pipe head can be realized, just manual operation can be completed to hold together and unlock, effectively simplify assembly process, significantly improve equipment maintenance efficiency, fundamentally solve the problem of traditional fixed structure disassembly cumbersome, inconvenient operation.
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Description

Technical Field

[0001] This utility model belongs to the technical field of bag filter accessories, specifically a fixing clamp for the head of the blowpipe of a bag filter. Background Technology

[0002] Baghouse dust collectors are widely used in metallurgy, chemical industry, building materials and other industrial fields, and are key environmental protection equipment for achieving dust control and ensuring that the production environment meets standards. As a core component of the baghouse dust collector's cleaning system, the installation stability of the pulse jet nozzle directly affects the uniformity of pulse jet cleaning and the cleaning effect, thus impacting the overall operating efficiency and service life of the dust collector. To ensure precise positioning and stable assembly of the pulse jet nozzle head, meeting the requirements for long-term stable operation of the equipment, a special fixing clamp for the pulse jet nozzle head of the baghouse dust collector is urgently needed to adapt to the installation and assembly requirements of the pulse jet nozzle and ensure the orderly conduct of cleaning operations.

[0003] The existing bag filter dust collector blowpipe head fixing device generally adopts a bolt locking structure during use. Disassembly and assembly require multiple tightening operations with tools such as wrenches, which is cumbersome and time-consuming, resulting in low equipment maintenance efficiency and the inability to achieve quick disassembly and assembly.

[0004] Therefore, a fixing clamp for the head of the blowpipe of a bag filter is proposed to address the above problems. Utility Model Content

[0005] To address the problems mentioned in the background art, this utility model provides a fixing clamp for the head of the blowpipe of a bag filter dust collector. It effectively simplifies the assembly process, significantly improves the efficiency of equipment maintenance, fundamentally solves the problems of cumbersome disassembly and inconvenient operation of traditional fixing structures, and effectively resists the vibration and impact generated by pulse jet cleaning. It ensures that the blowpipe is always accurately aligned with the filter bag, ensuring that the dust removal operation is carried out stably and orderly. At the same time, the elastic design of the spring can also adapt to different assembly errors, improving the applicability and service life of the device.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixing clamp for the head of a blowpipe in a bag filter, comprising a blowpipe body, wherein a positioning ring is integrally formed on the outer surface of the blowpipe body, and a fixing seat one and a fixing seat two are sleeved on the outer surface of the positioning ring, wherein both the fixing seat one and the fixing seat two are semi-circular and are hinged to each other, and the inner surfaces of both the fixing seat one and the fixing seat two are provided with fixing grooves for use with the positioning ring;

[0007] The outer surface of the first fixing seat is integrally formed with an assembly plate, and the outer surface of the second fixing seat is integrally formed with an assembly plate. The inner surfaces of the first assembly plate and the second assembly plate are provided with a fixing component.

[0008] The fixing component includes a vertical groove at one top of the assembly plate, a locking rod slidably connected to the inner surface of the vertical groove, a rectangular groove on the inner surface of the vertical groove, a return spring wound around the outer surface of the locking rod located in the rectangular groove, a rectangular block slidably connected to the inner surface of the vertical groove, the two ends of the return spring abutting against one end of the rectangular groove and one end of the rectangular block, respectively, and the rectangular block is fixedly sleeved with the locking rod;

[0009] One end of the assembly plate 2 is fixedly connected to a snap-fit ​​block, one end of the assembly plate 1 is provided with a snap-fit ​​groove for use with the snap-fit ​​block, one end of the snap-fit ​​block is provided with a locking groove for use with a locking rod, and one end of the locking rod passes through the vertical groove and extends into the locking groove.

[0010] The fixing component also includes a locking groove formed at one end of the assembly plate. There are four locking grooves, and a metal spring is installed on one inner wall of each of the four locking grooves.

[0011] Preferably, the outer surface of the second fixing seat is integrally formed with a mounting base, and the mounting base is fixedly connected to the inner wall of the dust collector box by bolts.

[0012] Preferably, the metal spring is arc-shaped, and one end of the metal spring abuts against one end of the assembly plate two.

[0013] Preferably, one end of the locking rod is fixedly connected to an operating block, and the locking rod has an inclined surface at one end of the locking groove, and the opening edge of the locking groove is arc-shaped.

[0014] Preferably, the width of the snap-fit ​​groove is greater than the thickness of the snap-fit ​​block to accommodate the assembly path of the hinged rotation of the first fixed seat and the second fixed seat, so as to facilitate the smooth snap-fit ​​of the snap-fit ​​block.

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

[0016] 1. This utility model, through the hinged connection of fixed base one and fixed base two, enables tool-free quick assembly and disassembly of the blow pipe head under the action of the fixed component. The engagement and unlocking can be completed by manual operation, which effectively simplifies the assembly process, significantly improves the efficiency of equipment inspection and maintenance, and fundamentally solves the problems of cumbersome assembly and disassembly and inconvenient operation of traditional fixed structures.

[0017] 2. This utility model further enhances the stability of the fixing structure through the cooperation of the positioning ring and the fixing groove and the elastic abutment of the spring sheet. At the same time, with the help of the elastic buffer of the spring sheet, it effectively resists the vibration and impact generated by the pulse jet, ensuring that the jet pipe is always accurately aligned with the filter bag, and ensuring that the dust removal operation is carried out stably and orderly. In addition, the elastic design of the spring sheet can also adapt to different assembly errors, improving the applicability and service life of the device. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is an exploded view of the overall structure of this utility model;

[0020] Figure 3 This utility model Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0021] Figure 4 This is a schematic cross-sectional view of the assembly plate of this utility model;

[0022] Figure 5 This is a cross-sectional view of the assembly plate of this utility model and a schematic diagram of the structure after removing the locking rod;

[0023] Figure 6 This is a schematic diagram of the assembly plate of this utility model.

[0024] In the diagram: 1. Main body of the blowpipe; 11. Positioning ring; 12. Fixing groove;

[0025] 2. Fixed base one;

[0026] 3. Assembly plate one; 31. Locking groove; 32. Spring piece;

[0027] 4. Fixing component; 41. Locking rod; 42. Operating block; 43. Return spring; 44. Rectangular block; 45. Snap-fit ​​groove; 46. Inclined surface; 47. Vertical groove; 48. Rectangular groove;

[0028] 5. Fixed base two;

[0029] 6. Assembly plate two; 61. Snap-fit ​​block; 62. Locking groove;

[0030] 7. Mounting bracket. Detailed Implementation

[0031] 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.

[0032] like Figures 1 to 6As shown, this utility model provides a fixing clamp for the head of the blowpipe of a bag dust collector, including a blowpipe body 1. A positioning ring 11 is integrally formed on the outer surface of the blowpipe body 1. A fixing seat 1 2 and a fixing seat 2 5 are sleeved on the outer surface of the positioning ring 11. Both the fixing seat 1 2 and the fixing seat 2 5 are semi-circular and are hinged to each other. The inner surfaces of the fixing seat 1 2 and the fixing seat 2 5 are provided with fixing grooves 12 that cooperate with the positioning ring 11.

[0033] The outer surface of the fixed base 1 2 is integrally formed with the assembly plate 1 3, and the outer surface of the fixed base 2 5 is integrally formed with the assembly plate 2 6. The inner surfaces of the assembly plate 1 3 and the assembly plate 2 6 are jointly provided with the fixing component 4. By setting the positioning ring 11 on the blow pipe body 1 and cooperating with the fixing groove 12 on the inner side of the fixed base 1 2 and the fixed base 2 5, the blow pipe body 1 can be circumferentially and axially limited. At the same time, by utilizing the hinge structure of the fixed base 1 2 and the fixed base 2 5, the positioning ring 11 can be quickly engaged to achieve the initial positioning and assembly of the head of the blow pipe body 1, and to prevent the blow pipe body 1 from circumferentially rotating or axially shifting during operation.

[0034] Specifically, the outer surface of the fixed base 2 5 is integrally formed with a mounting base 7. The mounting base 7 is fixedly connected to the inner wall of the dust collector box by bolts, which can securely install the entire fixing clamp on the inner wall of the dust collector box, providing a reliable installation base for the blowpipe body 1, ensuring the stability of the working position of the blowpipe body 1, ensuring the alignment accuracy between the blowpipe body 1 and the filter bag, and ensuring the normal operation of the dust removal operation.

[0035] like Figures 1 to 6 As shown, the fixing component 4 includes a vertical groove 47 opened at the top of the assembly plate 3. A locking rod 41 is slidably connected to the inner surface of the vertical groove 47. A rectangular groove 48 is opened on the inner surface of the vertical groove 47. A return spring 43 is wound around the outer surface of the locking rod 41 located in the rectangular groove 48. A rectangular block 44 is slidably connected to the inner surface of the vertical groove 47. The two ends of the return spring 43 abut against one end of the rectangular groove 48 and one end of the rectangular block 44, respectively. The rectangular block 44 is fixedly sleeved with the locking rod 41.

[0036] One end of the assembly plate 2 6 is fixedly connected to a snap-fit ​​block 61. One end of the assembly plate 1 3 is provided with a snap-fit ​​groove 45 for use with the snap-fit ​​block 61. One end of the snap-fit ​​block 61 is provided with a locking groove 62 for use with the locking rod 41. One end of the locking rod 41 passes through the vertical groove 47 and extends into the locking groove 62. Under the elastic force of the return spring 43, the locking rod 41 can automatically snap into the locking groove 62, realizing the quick locking of the assembly plate 1 3 and the assembly plate 2 6. The fixing can be completed without the aid of any tools, which greatly improves the assembly efficiency.

[0037] Furthermore, an operating block 42 is fixedly connected to one end of the locking rod 41. An inclined surface 46 is provided at one end of the locking rod 41 located in the locking groove 62, and the opening edge of the locking groove 62 is arc-shaped. This allows the locking block 61 to smoothly push the locking rod 41 back when it is engaged in the locking groove 45, reducing the engagement resistance and preventing jamming. At the same time, the arc-shaped treatment can reduce component wear, improve assembly smoothness, and extend the service life of the components.

[0038] like Figures 1 to 6 As shown, the width of the snap-fit ​​groove 45 is greater than the thickness of the snap-fit ​​block 61 to accommodate the assembly path of the hinged rotation of the fixed seat 1 2 and the fixed seat 2 5, so as to facilitate the smooth snap-fit ​​of the snap-fit ​​block 61 and avoid interference between the snap-fit ​​block 61 and the inner wall of the snap-fit ​​groove 45, ensuring that the snap-fit ​​block 61 can be smoothly snapped into the snap-fit ​​groove 45 and ensuring that the locking action is completed smoothly.

[0039] It is worth noting that the fixing component 4 also includes a locking groove 31 opened at one end of the assembly plate 3. There are four locking grooves 31, and metal springs 32 are installed on one inner wall of each of the four locking grooves 31. They can apply a uniform and continuous elastic clamping force to the assembly plate 6, effectively reducing the fit gap between the assembly plate 3 and the assembly plate 6, and improving the tightness of the structure after assembly.

[0040] like Figures 1 to 6 As shown, the metal spring 32 is arc-shaped, and one end of the metal spring 32 abuts against one end of the assembly plate 6 to prevent the locking structure from loosening due to vibration caused by pulse jet blowing, thereby further improving the fixing reliability. At the same time, the arc-shaped structure can adapt to the slight displacement of the assembly plate 6, improving the buffering performance.

[0041] Working principle and process: During installation, firstly, fix the second fixing seat 5 to the inner wall of the dust collector box through the mounting seat 7. Then, embed the positioning ring 11 of the blowpipe body 1 into the fixing groove 12 of the first fixing seat 2 and the second fixing seat 5 to achieve axial and circumferential limiting of the blowpipe body 1. Then, rotate the first fixing seat 2 around the hinge point so that the locking block 61 is engaged in the locking groove 45. The locking block 61 presses the inclined surface 46 to push the locking rod 41 to move and compress the return spring 43 through the rectangular block 44. When the locking groove 62 is aligned with the locking rod 41, the return spring 43 pushes the locking rod 41 to engage in the locking groove 62 to complete the locking. At this time, the metal spring 32 presses against the second assembly plate 6 to eliminate gaps and prevent vibration and loosening. When disassembling, pull the operating block 42 to make the locking rod 41 exit the locking groove 62, and the metal spring 32 automatically pushes open the second assembly plate 6, so that the first fixing seat 2 and the second fixing seat 5 can be opened, and the blow pipe body 1 can be quickly removed. No tools are required throughout the process, making disassembly and assembly more efficient and convenient.

[0042] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0043] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing clamp for the head of a blowpipe in a baghouse dust collector, comprising a blowpipe body (1), characterized in that: The outer surface of the blow pipe body (1) is integrally formed with a positioning ring (11). The outer surface of the positioning ring (11) is fitted with a fixing seat one (2) and a fixing seat two (5). The fixing seat one (2) and the fixing seat two (5) are both semi-circular and are hinged to each other. The inner surfaces of the fixing seat one (2) and the fixing seat two (5) are provided with fixing grooves (12) for use with the positioning ring (11). The outer surface of the first fixing seat (2) is integrally formed with an assembly plate (3), and the outer surface of the second fixing seat (5) is integrally formed with an assembly plate (6). The inner surfaces of the first assembly plate (3) and the second assembly plate (6) are provided with a fixing component (4). The fixing component (4) includes a vertical groove (47) opened at the top of the assembly plate (3). A locking rod (41) is slidably connected to the inner surface of the vertical groove (47). A rectangular groove (48) is opened on the inner surface of the vertical groove (47). A return spring (43) is wound around the outer surface of the locking rod (41) located in the rectangular groove (48). A rectangular block (44) is slidably connected to the inner surface of the vertical groove (47). The two ends of the return spring (43) abut against one end of the rectangular groove (48) and the rectangular block (44) respectively. The rectangular block (44) is fixedly sleeved with the locking rod (41). One end of the assembly plate 2 (6) is fixedly connected to a snap-fit ​​block (61), one end of the assembly plate 1 (3) is provided with a snap-fit ​​groove (45) for use with the snap-fit ​​block (61), one end of the snap-fit ​​block (61) is provided with a locking groove (62) for use with the locking rod (41), and one end of the locking rod (41) passes through the vertical groove (47) and extends into the locking groove (62); The fixing component (4) also includes a locking groove (31) opened at one end of the assembly plate (3). There are four locking grooves (31), and a metal spring (32) is installed on one side inner wall of each of the four locking grooves (31).

2. A fixing clamp for the head of a blowpipe in a baghouse dust collector according to claim 1, characterized in that: The outer surface of the fixed seat 2 (5) is integrally formed with a mounting seat (7), which is fixedly connected to the inner wall of the dust collector box by bolts.

3. A fixing clamp for the head of a blowpipe in a baghouse dust collector according to claim 1, characterized in that: The metal spring (32) is arc-shaped, and one end of the metal spring (32) abuts against one end of the assembly plate (6).

4. A fixing clamp for the head of a blowpipe in a baghouse dust collector according to claim 1, characterized in that: One end of the locking rod (41) is fixedly connected to the operating block (42). The locking rod (41) has an inclined surface (46) at one end of the locking groove (62), and the opening edge of the locking groove (62) is arc-shaped.

5. A fixing clamp for the head of a blowpipe in a baghouse dust collector according to claim 1, characterized in that: The width of the snap-fit ​​groove (45) is greater than the thickness of the snap-fit ​​block (61) to accommodate the assembly path of the hinged rotation of the first fixed seat (2) and the second fixed seat (5), so that the snap-fit ​​block (61) can be smoothly snapped in.