Floating screw device for sewage deslagging

By designing a floating screw device with adjustable female and male interfaces, the problem of existing devices being unable to adapt to different water widths is solved, achieving strong adaptability, easy installation, and energy-saving effects.

CN224172478UActive Publication Date: 2026-04-28JIANGSU LINGXIANG ENVIRONMENTAL PROTECTION TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
JIANGSU LINGXIANG ENVIRONMENTAL PROTECTION TECH CO LTD
Filing Date
2025-04-27
Publication Date
2026-04-28

AI Technical Summary

Technical Problem

The existing floating screw device has a fixed overall structural width, which cannot adapt to different water widths, resulting in installation difficulties, high equipment costs and increased energy consumption, and it cannot flexibly avoid obstacles in the water.

Method used

A floating screw device including a female interface and a male interface was designed. The floating screw body can be adjusted by connecting parts and limiting parts to adapt to different water widths, and can be firmly fixed by threaded connection.

Benefits of technology

The width of the floating screw device is adjustable, making it highly adaptable, easy to install, reducing equipment procurement costs and energy consumption, while also allowing it to flexibly avoid obstacles in the water.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a floating screw device for sewage deslagging, which belongs to the technical field of sewage deslagging and comprises a floating screw body, a propeller blade female connector arranged on the outer side of the floating screw body, a first butt joint pipe arranged at one end of the floating screw body, a first connecting piece, a second connecting piece and a male connector arranged on the outer side of the first butt joint pipe. The second butt joint pipe is arranged at the other end of the floating screw body and comprises a second butt joint pipe, and the floating screw has the advantages that two adjacent floating screw bodies are connected by arranging the first connecting piece and the second connecting piece, and two adjacent floating screw bodies are fixedly connected for the second time by arranging the fixing piece and the limiting piece; the floating screw rod has the advantages that the floating screw rod and the floating screw rod can be connected more firmly, and meanwhile, the floating screw rod body can be adaptively assembled according to the width of a river and a canal, so that the proper slag removal width is achieved.
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Description

Technical Field

[0001] This utility model belongs to the field of sewage sludge discharge technology, and in particular, it is a floating screw device for sewage sludge discharge. Background Technology

[0002] Wastewater sludge removal refers to the process of removing or treating solid waste or residues in wastewater. This process is crucial for ensuring the normal operation of wastewater treatment systems, improving treatment efficiency, and reducing environmental pollution. Floating screw sludge removal utilizes a drive motor to rotate a pressurized hollow screw. The screw's oscillation and lifting action collects scum and oil residue from the water surface and transports it to a scum receiving port. The scum is then discharged from the tank via a sludge pump. Most existing floating screw devices are one-piece structures, with the floating screw fixed to a frame using bolts and threaded sleeves.

[0003] However, such devices have significant drawbacks in practical applications: their overall structural width is fixed and cannot be adaptively adjusted according to the width of rivers, ditches, or sewage treatment ponds. When applied to narrow waterways, excessively wide equipment is difficult to install and may even collide with the side slopes; while in wide waterways, a single fixed-width device has insufficient cleaning range, requiring multiple devices to be arranged side-by-side, significantly increasing equipment procurement costs and energy consumption. Furthermore, the fixed-width design prevents the device from flexibly avoiding obstacles in the water (such as bridge piers and pipelines), further limiting its application scenarios. Therefore, developing a floating screw cleaning device with adjustable width and strong adaptability has become an urgent technical challenge.

[0004] The purpose of this invention is to provide a floating screw device for sewage sludge discharge to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to provide a floating screw device for sewage sludge discharge to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a floating screw device for sewage sludge discharge, comprising a floating screw body, a female interface disposed at one end of the floating screw body, including a first pair of connecting pipes, with a first connector and a second connector disposed on the outer side of the first pair of connecting pipes, and a male interface disposed at the other end of the floating screw body, including a second pair of connecting pipes, with a fixing member sleeved on the outer side of the second pair of connecting pipes for cooperating with the first connector to make a first connection to the floating screw body, and a sliding sleeve disposed on the outer side of the second pair of connecting pipes, with a limiting member disposed at one end of the sliding sleeve for cooperating with the second connector to make a second fixation to the floating screw body.

[0007] Furthermore, the first connector includes a limiting disc symmetrically disposed on the outside of the first pair of connecting pipes, and the second connector includes a threaded ring disposed on the outside of the first pair of connecting pipes.

[0008] Furthermore, the fastener includes a mating sleeve sleeved on the outside of the second pair of connecting pipes, the outside of the mating sleeve having a through limiting groove, and a limiting ball slidably connected in the limiting groove.

[0009] Furthermore, a limiting ring is fitted on the outer side of the second pair of connecting pipes, and a sliding groove is provided between the sliding sleeve and the second pair of connecting pipes. A spring is provided in the sliding groove, with one end of the spring connected to the limiting ring and the other end connected to the sliding sleeve. A movement groove is provided in the sliding sleeve.

[0010] Furthermore, the limiting member includes connecting rods symmetrically arranged within the sliding sleeve, with a ball embedded at the end of the connecting rod, the ball slidingly connected within the motion groove.

[0011] Furthermore, a baffle is provided inside the sliding sleeve to prevent the ball from sliding out, and a threaded sleeve that mates with the threaded ring is connected to the end of the connecting rod.

[0012] Furthermore, a propeller blade is provided on the outer side of the floating screw body.

[0013] Compared with the prior art, the present invention has the following beneficial effects:

[0014] This utility model connects two adjacent floating screw bodies by setting a first connector and a second connector, and achieves secondary fixed connection between the two adjacent floating screw bodies by setting a fixing part and a limiting part. The advantage of this is that the connection between the two is more secure. At the same time, the floating screw bodies can be adapted to the width of the river channel to achieve a suitable cleaning width. In addition, the connection between the two is convenient and easy for the staff to operate. Attached Figure Description

[0015] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the female interface in this utility model;

[0018] Figure 3 This is a schematic diagram of the male interface in this utility model;

[0019] Figure 4 This is a cross-sectional view of the male interface of this utility model;

[0020] Figure 5 This is an exploded structural diagram of the male interface in this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] In the picture:

[0023] 1. Floating screw body;

[0024] 2. Propeller blades;

[0025] 3. Female connector; 31. Limiting plate; 32. First coupling pipe; 33. Threaded ring;

[0026] 4. Male connector; 41. Sliding sleeve; 42. Threaded sleeve; 43. Connecting rod; 44. Butt sleeve; 45. Limiting ring; 46. Spring; 47. Sliding groove; 48. Second connecting pipe; 49. Limiting groove; 410. Limiting ball; 411. Motion groove; 412. Baffle; 413. Rolling ball. Detailed Implementation

[0027] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0028] Unless otherwise defined, the directions mentioned herein, such as up, down, left, right, front, back, inside, and outside, are based on the directions shown in the figures of this utility model, and are explained here together.

[0029] The connection method can be any existing method, such as bonding, welding, or bolting, depending on the actual needs.

[0030] Please see Figures 1 to 5 As shown, a floating screw device for sewage sludge discharge includes a floating screw body 1, with a propeller blade 2 disposed on the outer side of the floating screw body 1. The female interface 3 of the floating screw body 1 can be connected to the output end of a power source, thereby driving the entire device to perform sludge discharge work. Multiple sets can be installed through the female interface 3 and the male interface 4. In addition, both the male interface 4 and the female interface 3 can be installed with existing mounting frames connected to the floating screw body 1.

[0031] The female interface 3 is located at one end of the floating screw body 1 and includes a first pair of connecting pipes 32. A first connector is provided on the outside of the first pair of connecting pipes 32. The first connector includes a limiting plate 31 symmetrically arranged on the outside of the first pair of connecting pipes 32. The male interface 4 is located at the other end of the floating screw body 1 and includes a second pair of connecting pipes 48. A docking sleeve 44 is fitted on the outside of the second docking sleeve 48 and is fixed. The diameter of the docking sleeve 44 is larger than the diameter of the first pair of connecting pipes 32 plus the diameter of the limiting plate 31. This is to allow the limiting plate 31 to enter the docking sleeve 44. A fixing member is fitted on the outside of the second pair of connecting pipes 48 for cooperating with the first connector to make the first connection to the floating screw body 1. The fixing component includes a mating sleeve 44 fitted on the outside of the second pair of connecting pipes 48. A through limiting groove 49 is provided on the outside of the mating sleeve 44. The width of the limiting groove 49 decreases from top to bottom. The purpose of this setting is to allow a portion of the limiting ball 410 to leak into the limiting plate 31, so that the sliding sleeve 41 can move above the limiting groove 49 to limit and fix it. The limiting ball 410 is slidably connected in the limiting groove 49. A limiting ring 45 is fitted on the outside of the second pair of connecting pipes 48. A sliding groove 47 is provided between the sliding sleeve 41 and the second pair of connecting pipes 48. A spring 46 is provided in the sliding groove 47. One end of the spring 46 is connected to the limiting ring 45, and the other end is connected to the sliding sleeve 41. A movement groove 411 is provided in the sliding sleeve.

[0032] The second connector includes a threaded ring 33 disposed on the outside of the first pair of connecting pipes 32, and a sliding sleeve 41 disposed on the outside of the second pair of connecting pipes 48. One end of the sliding sleeve 41 is provided with a limiting member for cooperating with the second connector to fix the floating screw body 1 for the second time. The limiting member includes a connecting rod 43 symmetrically disposed in the sliding sleeve 41. A ball 413 is embedded in the end of the connecting rod 43. The ball 413 slides in the motion groove 411. A baffle 412 is provided in the sliding sleeve 41 to prevent the ball 413 from sliding out. The end of the connecting rod 43 is connected to a threaded sleeve 42 that cooperates with the threaded ring 33. The threaded sleeve 42 is placed on the outside of the threaded ring 33 and then rotated to form a fixation.

[0033] Additionally, it should be noted that the structural components of the female interface 3 and the male interface 4 can be made of different materials, such as hard plastic or rust-resistant iron, depending on the required buoyancy, so as to allow for flexible use under various buoyancy conditions.

[0034] Working principle: In use, the threaded sleeve 42 is pushed together with the sliding sleeve 41, and then the sliding sleeve 41 is pushed, and then the sliding sleeve 41 slides outside the docking sleeve 44, thereby squeezing the spring 46 and moving it towards the limiting ring 45, and then leaving the upper part of the limiting groove 49. Then the first pair of connecting pipes 32 are inserted into the docking sleeve 44 and contact the second pair of connecting pipes 48. Then the limiting ball 410 enters between the limiting discs 31. Then the sliding sleeve 41 is released, the spring 46 returns to its deformation and pushes it above the limiting groove 49 to limit it. Then the threaded sleeve 42 is pulled outward, and then the connecting rod 43 drives the rolling ball 413 to move outward in the movement groove 411. After contacting the threaded ring 33, the threaded sleeve 42 is rotated, thereby performing secondary fixation. After fixation is completed, the power source is started to drive the floating screw body 1 to rotate, thereby performing slag discharge.

[0035] It should be noted that, in this document, relational terms such as "one" and "two" are used merely 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 a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0036] 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 floating screw device for sewage sludge discharge, characterized in that: include Floating screw body (1); The female interface (3) is located at one end of the floating screw body (1) and includes a first pair of connecting pipes (32). A first connector and a second connector are provided on the outside of the first pair of connecting pipes (32). Male interface (4) is provided at the other end of the floating screw body (1), including a second pair of connecting pipes (48). The second pair of connecting pipes (48) is fitted with a fixing member for cooperating with the first connecting member to make a first connection to the floating screw body (1). The second pair of connecting pipes (48) is provided with a sliding sleeve (41). One end of the sliding sleeve (41) is provided with a limiting member for cooperating with the second connecting member to make a second fixation to the floating screw body (1).

2. The floating screw device for sewage sludge discharge according to claim 1, characterized in that: The first connector includes a limiting disc (31) symmetrically arranged on the outside of the first pair of connecting pipes (32), and the second connector includes a threaded ring (33) arranged on the outside of the first pair of connecting pipes (32).

3. The floating screw device for sewage sludge discharge according to claim 1, characterized in that: The fastener includes a mating sleeve (44) sleeved on the outside of the second pair of connecting pipes (48), and a through limiting groove (49) is provided on the outside of the mating sleeve (44), and a limiting ball (410) is slidably connected in the limiting groove (49).

4. The floating screw device for sewage sludge discharge according to claim 3, characterized in that: A limiting ring (45) is fitted on the outside of the second pair of connecting pipes (48). A sliding groove (47) is provided between the sliding sleeve (41) and the second pair of connecting pipes (48). A spring (46) is provided in the sliding groove (47). One end of the spring (46) is connected to the limiting ring (45), and the other end is connected to the sliding sleeve (41). A motion groove (411) is provided in the sliding sleeve.

5. The floating screw device for sewage sludge discharge according to claim 1, characterized in that: The limiting component includes connecting rods (43) symmetrically arranged in the sliding sleeve (41), and a ball (413) is embedded in the end of the connecting rod (43). The ball (413) is slidably connected in the motion groove (411).

6. The floating screw device for sewage sludge discharge according to claim 5, characterized in that: The sliding sleeve (41) is provided with a baffle (412) to prevent the ball (413) from sliding out, and the end of the connecting rod (43) is connected to a threaded sleeve (42) that cooperates with the threaded ring (33).

7. The floating screw device for sewage sludge discharge according to claim 1, characterized in that: The floating screw body (1) is provided with a propeller blade (2) on its outer side.