A sewage treatment submersible mixer launching and landing auxiliary device
By adding auxiliary guide wheels to the submersible mixer for sewage treatment, the mechanical jamming problem caused by guide rail corrosion was solved, enabling smooth lifting and lowering of the equipment and safe operation, thus improving work efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHANDONG IRON & STEEL GRP YONGFENG LINGANG CO LTD
- Filing Date
- 2025-07-09
- Publication Date
- 2026-06-02
AI Technical Summary
Existing submersible mixers for sewage treatment are prone to frictional resistance and mechanical jamming during lifting and lowering due to the accumulation of corrosion products on the guide rail surface. This affects the smooth lifting and lowering of the equipment and operational safety.
An auxiliary guide wheel is installed between the mixer and the guide rail. The guide rail is made of carbon steel with hot-dip galvanized surface and the roller is made of 304 stainless steel. The roller is connected to the mixer shell by a C-shaped bracket to form a stable rolling contact and reduce frictional resistance.
This enabled the mixer to start and stop smoothly, reduced labor intensity, improved work efficiency, provided a safe operating environment, and reduced mechanical jamming problems.
Smart Images

Figure CN224308299U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of auxiliary equipment for sewage treatment submersible mixers, and specifically relates to a lifting and lowering auxiliary device for sewage treatment submersible mixers. Background Technology
[0002] In wastewater treatment equalization tanks, submersible mixers are core equipment for ensuring uniform water mixing and preventing sludge settling. For equipment inspection and maintenance, the mixers are typically raised and lowered using a vertical guide rail system. However, existing guide rail-guide wheel lifting structures have drawbacks in practical applications; corrosion products accumulate on the guide rail surface, creating frictional resistance and easily leading to mechanical jamming in wastewater environments. Therefore, an auxiliary device for raising and lowering submersible mixers in wastewater treatment is proposed. Utility Model Content
[0003] The purpose of this utility model is to provide an auxiliary device for the lifting and lowering of a submersible mixer for sewage treatment. By adding a set of auxiliary guide wheels between the mixer and the track, the problem of jamming during the lifting and lowering process is solved, so as to realize the smooth lifting and lowering of the mixer, improve work efficiency, provide a safe operating environment for employees, and solve the problem of mechanical jamming caused by the following reasons in the existing technology in sewage environment.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a lifting and lowering auxiliary device for a sewage treatment submersible mixer, including a guide rail, a C-shaped bracket mounted on the guide rail, a front roller in the middle of the C-shaped bracket, and rear rollers at the upper and lower ends of the C-shaped bracket. The C-shaped bracket is connected to the outer shell of the mixer.
[0005] Preferably, the rear end of the mixer housing is provided with an arc-shaped slot for placing C-shaped brackets. There are two C-shaped brackets on both sides of the rear end of the mixer housing, and the two C-shaped brackets are connected to the two ends of the front roller and the rear roller through bearings.
[0006] Preferably, the guide rail is made of carbon steel with hot-dip galvanized surface treatment or is made entirely of stainless steel.
[0007] Preferably, the front roller and the rear roller are made of 304 stainless steel and have a polished surface.
[0008] Preferably, the bearings of both the front and rear rollers are stainless steel ball bearings.
[0009] Preferably, the C-shaped bracket has two rear rollers symmetrically arranged at the upper and lower ends, and at least one front roller arranged in the middle. The front rollers contact the front side of the guide rail, and the rear rollers contact the rear side of the guide rail.
[0010] Preferably, the C-shaped bracket is welded or bolted to the rear end of the mixer housing.
[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:
[0012] 1. This utility model solves the jamming problem during the lifting and lowering process of the mixer, enabling the mixer to rise and fall smoothly, reducing the number of times process personnel need to operate repeatedly, reducing labor intensity, and thus improving the operating efficiency of the sewage treatment equalization tank;
[0013] 2. This utility model adds a set of auxiliary guide wheels between the mixer and the track to solve the jamming problem during the lifting process, realize the smooth start and drop of the mixer, improve work efficiency, provide a safe operating environment for employees, and solve the mechanical jamming problem caused by the following reasons in the existing technology in the sewage environment. Attached Figure Description
[0014] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments 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 based on these drawings without creative effort.
[0015] Figure 1 This is a structural diagram of a sewage treatment submersible mixer lifting and lowering auxiliary device according to one embodiment;
[0016] In the above diagram, 1 is the guide rail, 2 is the C-shaped bracket, 3 is the rear roller, 4 is the front roller, and 5 is the mixer casing. Detailed Implementation
[0017] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0018] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.
[0019] Example 1, as Figure 1As shown, a lifting and lowering auxiliary device for a submersible mixer used in wastewater treatment includes a guide rail 1. The guide rail 1 serves as the vertical guide reference for the lifting and lowering of the mixer, bearing the weight of the equipment and hydraulic loads. Motion constraint is achieved through a double-sided contact structure. A C-shaped bracket 2 is mounted on the guide rail 1. A front roller 4 is located in the middle of the C-shaped bracket 2, bearing the main vertical load and acting as a key stress point to prevent the mixer from tipping over. Rear rollers 3 are located at the upper and lower ends of the C-shaped bracket 2, clamping the rear side of the guide rail 1, limiting the horizontal swing of the equipment, and forming a force couple with the front roller 4 to ensure smooth lifting and lowering. The C-shaped bracket 2 is a load-bearing frame integrating the roller assembly, transferring the mixer load to the guide rail 1. The open structure facilitates roller maintenance and replacement. The C-shaped bracket 2 is connected to the mixer housing 5.
[0020] The specific design of the aforementioned key components will be discussed in detail below:
[0021] The rear end of the mixer housing 5 is provided with an arc-shaped slot to accommodate C-shaped brackets 2. Two C-shaped brackets 2 are located on both sides of the rear end of the mixer housing 5. The two C-shaped brackets 2 are connected to the two ends of the front roller 4 and the rear roller 3 through bearings. The arc-shaped slot is formed by laser cutting with an arc center angle of 120°±5°, leaving installation space for the front roller 4.
[0022] The guide rail 1 is made of carbon steel with hot-dip galvanized surface treatment or entirely of stainless steel. Galvanizing forms an anodic protective layer, costing only 1 / 3 of stainless steel, making it suitable for moderately corrosive environments. The overall stainless steel construction significantly improves the pitting corrosion resistance index and provides high durability in highly corrosive environments containing sulfides.
[0023] The front roller 4 and rear roller 3 are made of 304 stainless steel with a polished surface. Both the front roller 4 and rear roller 3 use stainless steel ball bearings. Two rear rollers 3 are symmetrically arranged at the top and bottom of the C-shaped bracket 2, and at least one front roller 4 is arranged in the middle. The front roller 4 contacts the front side of the guide rail 1, and the rear roller 3 contacts the rear side of the guide rail 1. The four rollers form a rectangular constraint frame, enhancing constraint stability.
[0024] The C-shaped bracket 2 is welded or bolted to the rear end of the mixer housing 5. The welding adopts a J-shaped bevel weld, and the bolted connection adopts anti-loosening bolts, with a double nut + thread-locking adhesive reinforcement design.
[0025] All standard parts used in this utility model can be purchased from the market, and irregular parts can be customized according to the description and drawings. The specific connection methods of each part adopt conventional methods such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts and equipment adopt conventional models in the prior art. In addition, the circuit connection adopts conventional connection methods in the prior art, which will not be described in detail here. The contents not described in detail in this specification belong to the prior art known to those skilled in the art.
[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.
Claims
1. A lifting and lowering auxiliary device for a submersible mixer in wastewater treatment, comprising a guide rail, characterized in that, A C-shaped bracket is fitted on the guide rail. A front roller is provided in the middle of the C-shaped bracket, and rear rollers are provided at the upper and lower ends of the C-shaped bracket. The C-shaped bracket is connected to the outer shell of the mixer.
2. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 1, characterized in that, The rear end of the mixer housing is provided with an arc-shaped slot for placing C-shaped brackets. There are two C-shaped brackets on both sides of the rear end of the mixer housing. The two C-shaped brackets are connected to the two ends of the front roller and the rear roller through bearings.
3. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 1, characterized in that, The guide rail is made of carbon steel with hot-dip galvanized surface treatment or entirely of stainless steel.
4. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 1, characterized in that, The front and rear rollers are made of 304 stainless steel and have a polished surface.
5. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 1, characterized in that, Both the front and rear rollers use stainless steel ball bearings.
6. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 1, characterized in that, The C-shaped bracket has two rear rollers symmetrically arranged at the top and bottom, and at least one front roller arranged in the middle. The front rollers contact the front side of the guide rail, and the rear rollers contact the rear side of the guide rail.
7. The auxiliary device for raising and lowering a submersible mixer for sewage treatment according to claim 2, characterized in that, The C-shaped bracket is welded or bolted to the rear end of the mixer casing.