Novel barrel cover device for double-horizontal-shaft stirrer

By integrating functions such as water inlet pipe, observation door, and maintenance door into the drum cover of the twin-shaft mixer, the problems of poor drum cover versatility and inconvenient maintenance are solved, achieving efficient and safe mixing operation and low-cost maintenance, and is suitable for various mixer models.

CN224060101UActive Publication Date: 2026-03-31QINGDAO DEX MACHINERY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-06
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

The existing twin-shaft mixer drum cover has poor versatility, is inconvenient to maintain and poses safety hazards, and the traditional design increases production and maintenance costs.

Method used

A novel cylindrical cover device has been designed, integrating an inlet pipe, observation door, maintenance door, and protective net. It adopts a split structure for easy installation and disassembly, and ensures sealing through flange connection. Dedicated observation and maintenance ports are provided to enhance safety and versatility.

Benefits of technology

The multi-functional integration of the cylinder cover improves mixing efficiency and safety, reduces production and maintenance costs, enhances the equipment's versatility and adaptability, and maintains a clean working environment.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224060101U_ABST
Patent Text Reader

Abstract

The utility model relates to a novel barrel cover device for a double-horizontal-shaft stirrer, which comprises a barrel cover main body, the barrel cover main body is integrally arranged in a prismatic table shape, a top cover plate is arranged at the top of the barrel cover main body, a water inlet pipeline is arranged on the side surface of the barrel cover main body, a water inlet part of the water inlet pipeline extends into the barrel cover main body, and a water outlet part of the water inlet pipeline extends into the barrel cover main body. A sealing cover is further mounted on the side surface of the barrel cover main body and is opposite to the water inlet pipeline; an observation door and an access door are further arranged on the side face of the barrel cover body, and the water inlet pipeline is arranged in a trifurcate mode. The utility model has the advantages that besides the function of sealing the upper opening of the mixing drum, the utility model also has the functions of the feed port, the access hole, the observation port and the water inlet pipeline, the whole structure is simple and attractive, the split water inlet pipeline is simple and convenient to disassemble, assemble and maintain, the detachable top cover plate is convenient to arrange different feed ports and special observation ports, the safety protection measures are perfect, and the cost is low. The cylinder cover is convenient to manufacture, use and maintain and good in universality.
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Description

Technical Field

[0001] This utility model relates to a novel cylinder cover device for a twin-shaft mixer, belonging to the field of mixers. Background Technology

[0002] Twin-shaft planetary mixers are a type of engineering machinery widely used in the construction industry, primarily for mixing materials such as concrete and dry mortar. Due to their high mixing efficiency, good quality, and high energy utilization, these mixers are widely used in road and building construction, becoming the mainstream mixer model on the market.

[0003] However, the water channels and inlets integrated into the drum cover of traditional twin-shaft mixers on the market are mostly one-piece welded structures. While this design simplifies the manufacturing process to some extent, it also brings some problems.

[0004] First, different customers and different working conditions have different requirements for the feed inlet, water circuit and nozzle, which results in poor versatility of the cylinder cover. Each cylinder cover may need to be designed and manufactured separately, which increases production costs and design difficulty.

[0005] Secondly, when the water channel corrodes or the feed inlet wears out, replacement is very inconvenient due to the integral welded structure. This not only increases maintenance costs but may also affect the normal operation of the mixer. Furthermore, traditional drum covers mostly lack a dedicated observation port, often using the maintenance port as an observation port. This practice poses a safety hazard and can easily lead to dust overflowing from the drum, affecting the working environment and the health of operators. Utility Model Content

[0006] To overcome the shortcomings of existing technologies, this utility model provides a novel cylinder cover device for a twin-shaft mixer. The technical solution of this utility model is as follows:

[0007] A novel cylinder cover device for a twin-shaft mixer includes a cylinder cover body (1), which is generally frustum-shaped. A top cover plate (8) is installed on the top of the cylinder cover body (1). A water inlet pipe (2) is installed on the side of the cylinder cover body (1), and the water inlet portion of the water inlet pipe (2) extends into the interior of the cylinder cover body (1). A sealing cap (3) is also installed on the side of the cylinder cover body (1), and the sealing cap (3) is arranged opposite to the water inlet pipe (2). An observation door (4) is also provided on the side of the cylinder cover body (1). The system includes an inspection door (7) and an inspection door (7), which is opposite to the observation door (4). A protective net (6) is also installed at the observation door (4). The water inlet pipe (2) is arranged in a three-way configuration. An inlet flange (9) is installed in the middle of the water inlet pipe (2). An installation flange (10) is installed at each of the two ends of the water inlet pipe (2). A water spray pipe is installed at each of the installation flanges (10). Several nozzles (12) are installed along the length of the water spray pipe. A plug (11) is installed at the end of each water spray pipe.

[0008] Gas springs (13) are provided on the sides of the observation door (4) and the maintenance door (7) to assist in opening and maintaining the open door.

[0009] A safety switch (14) connected to the control box is also installed on the side of the inspection door (7).

[0010] The observation door (4), maintenance door (7) and protective net (6) are all installed on the main body of the cylinder cover (1) through the door frame (15).

[0011] The protective net (6) is mounted on the door frame (15) by means of a hinge (16).

[0012] Four connecting flanges (17) are installed on the main body (1) of the cylinder cover. Two of the connecting flanges (17) are connected to the corresponding mounting flanges (10) to install the water inlet pipe (2), and the other two connecting flanges (17) are used to install the cover (3).

[0013] An observation port (5) is provided on the observation door (4).

[0014] Sealing rings are provided on the main body (1) of the cylinder cover at the observation door (4) and the maintenance door (7).

[0015] The advantages of this utility model are:

[0016] In addition to sealing the top of the mixing drum, it also functions as a feed inlet, inspection port, observation port, and water inlet. The overall structure is simple and beautiful. The split water inlet is simple, easy to disassemble and maintain. The removable top cover makes it easy to set different feed inlets. A dedicated observation port is provided. Safety protection measures are complete. The drum cover is easy to manufacture, use, and maintain, and has good versatility. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the main structure of this utility model.

[0018] Figure 2 yes Figure 1 Top view.

[0019] Figure 3 yes Figure 2 BB cross-sectional view.

[0020] Figure 4 yes Figure 1 A bottom view.

[0021] Figure 5 This is a schematic diagram of another main structure of this utility model. Figure 1 Rotate 180°).

[0022] Figure 6 This is a schematic diagram showing the connection relationship between the door frame and the connecting flange on the main body of the cylinder cover according to this utility model.

[0023] Figure 7 yes Figure 1 A schematic diagram of the central water inlet pipeline.

[0024] Figure 8 yes Figure 7 Top view.

[0025] Figure 9 yes Figure 1 A schematic diagram of the structure of the protective netting. Detailed Implementation

[0026] The present invention will be further described below with reference to specific embodiments, and the advantages and features of the present invention will become clearer as a result of the description. However, these embodiments are merely exemplary and do not constitute any limitation on the scope of the present invention. Those skilled in the art should understand that modifications or substitutions can be made to the details and form of the technical solution of the present invention without departing from the spirit and scope of the present invention, but all such modifications and substitutions fall within the protection scope of the present invention.

[0027] See Figures 1 to 9This utility model relates to a novel cylinder cover device for a twin-shaft mixer, comprising a cylinder cover body 1, which is generally frustum-shaped. A top cover plate 8 is installed on the top of the cylinder cover body 1. A water inlet pipe 2 is installed on the side of the cylinder cover body 1, with the water inlet portion of the water inlet pipe 2 extending into the interior of the cylinder cover body 1. A sealing cap 3 is also installed on the side of the cylinder cover body 1, which is positioned opposite to the water inlet pipe 2. A further... The system includes an observation door 4 and a maintenance door 7, with the maintenance door 7 positioned opposite the observation door 4. A protective net 6 is also installed at the observation door 4. The water inlet pipe 2 is arranged in a three-way configuration, with an inlet flange 9 installed in the middle of the water inlet pipe 2. A mounting flange 10 is installed at each of the two ends of the water inlet pipe 2. A water spray pipe is installed at each of the mounting flanges 10, and several nozzles 12 are installed along the length of the water spray pipe. A plug 11 is installed at the end of each water spray pipe.

[0028] Based on the above structural design, the following advantages are achieved:

[0029] Structural optimization: The main body of the cylinder cover 1 is set in a frustum shape. This design not only enhances the stability of the structure, but also helps the material flow during the mixing process and improves the mixing efficiency.

[0030] Multifunctional integration: The cylinder cover device integrates multiple functions such as top cover plate 8, water inlet pipe 2, sealing cover 3, observation door 4, maintenance door 7 and protective net 6, so that the cylinder cover can not only seal the top of the mixing cylinder, but also meet the needs of feeding, observation, maintenance and water management.

[0031] Easy to maintain and replace: The water inlet pipe 2 adopts a three-way design, which is easy to install and disassemble, making maintenance and replacement more convenient. Each spray pipe is equipped with a plug 11 at the end to prevent debris from entering and protect the spray head 12.

[0032] Enhanced safety: Observation doors 4 are equipped with protective netting 6 to prevent material from splashing out of the cylinder during observation, thus improving operational safety. Maintenance door 7 is positioned opposite observation door 4, facilitating equipment maintenance by maintenance personnel.

[0033] Enhanced versatility: Because the design of the cylinder cover device takes into account the needs of different customers and working conditions, it has good versatility and can be adapted to a variety of different mixer models and mixing processes.

[0034] Improved work efficiency: The top cover plate 8 can be easily opened and closed, facilitating rapid material feeding and cleaning. Meanwhile, the nozzles 12 are evenly distributed along the water spray pipes, ensuring uniform wetting of the material and improving mixing quality.

[0035] Reduce dust spillage: The design of the protective net 6 can effectively prevent dust from spilling out of the cylinder, keeping the working environment clean, and also helping to reduce the impact on the health of operators.

[0036] Gas springs 13 are provided on the sides of both the observation door 4 and the maintenance door 7 to assist in opening and maintaining the open doors.

[0037] A safety switch 14 connected to the control box is also installed on the side of the inspection door 7.

[0038] The observation door 4, maintenance door 7, and protective net 6 are all installed on the cylinder cover body 1 via the door frame 15.

[0039] The protective net 6 is rotatably mounted on the door frame 15 via the hinge 16.

[0040] Four connecting flanges 17 are installed on the cylinder cover body 1. Two of the connecting flanges 17 are connected to the corresponding mounting flanges 10 and used to install the water inlet pipe 2. The other two connecting flanges 17 are used to install the cover 3.

[0041] The structural design of installing four connecting flanges 17 on the cylinder cover body 1 has the following advantages:

[0042] Enhanced sealing: The flange connection ensures a tight seal between the cylinder cover and the mixer body, preventing material leakage and the intrusion of external impurities. This is crucial for maintaining a clean mixing environment and improving mixing quality.

[0043] Easy to install and disassemble: Flange connections are usually fixed with bolts. This design makes the installation and disassembly process simpler and faster, without the need for complicated tools or techniques, reducing maintenance difficulty and time costs.

[0044] Improved versatility and adaptability: Standardized flange design improves the versatility of the cap assembly, enabling it to adapt to different models and specifications of mixers, thus increasing the equipment's flexibility and market adaptability.

[0045] An observation port 5 is provided on the observation door 4.

[0046] Sealing rings are provided on the main body 1 of the cylinder cover at both the observation door 4 and the maintenance door 7.

[0047] The working principle of this utility model is as follows:

[0048] This invention achieves efficient, safe, and convenient stirring operation. The following is a detailed description:

[0049] (1) Structural composition and installation:

[0050] The main body of the cylinder cover 1 is shaped like a frustum, which enhances structural stability and optimizes the material flow path.

[0051] The top cover plate 8 is installed on the top of the cylinder cover body 1 to facilitate rapid feeding and cleaning.

[0052] The water inlet pipe 2 adopts a three-pronged design, which connects to the connecting flange 17 on the cylinder cover body 1 through the inlet flange 9 in the middle and the mounting flanges 10 at both ends, so as to achieve quick installation and disassembly.

[0053] The cover 3 is installed at the other end of the cover body 1 via two connecting flanges 17 to ensure the sealing of the mixing drum.

[0054] (2) Multifunctional integration:

[0055] The observation door 4 and the maintenance door 7 are arranged opposite each other and are installed on the cylinder cover body 1 through the door frame 15, which facilitates observation and maintenance.

[0056] The protective net 6 is installed on the observation door 4 via the hinge 16 to prevent materials from splashing during observation and improve safety.

[0057] Several nozzles 12 are installed along the length of the water spray pipe to ensure that the material is evenly moistened and to improve the mixing quality.

[0058] (3) Operation procedure:

[0059] Feeding: The material is fed into the mixing drum through the top cover plate 8.

[0060] Add water: Start the water inlet pipe 2 and add water evenly to the material through the nozzle 12.

[0061] Mixing: The twin-shaft mixer starts working and mixes the materials.

[0062] Observation: The operator can observe the mixing process through the observation port 5 on the observation door 4 to ensure that the materials are mixed evenly.

[0063] Maintenance: If maintenance is required, the mixing drum can be accessed through maintenance door 7. The safety switch 14 on maintenance door 7 is connected to the control box to cut off power when the door is opened, ensuring the safety of maintenance personnel.

[0064] (4) Maintenance and replacement:

[0065] The design of the water inlet pipe 2 and the nozzle 12 facilitates maintenance and replacement. Each water spray pipe is equipped with a plug 11 at the end to prevent debris from entering.

[0066] Both the observation door 4 and the maintenance door 7 are equipped with sealing rings on the main body 1 of the cylinder cover to improve sealing performance and prevent material leakage and the intrusion of external impurities.

[0067] (5) Improve work efficiency and safety:

[0068] The quick-opening and closing design of the top cover plate 8 improves the efficiency of feeding and cleaning.

[0069] The uniform distribution of nozzles 12 ensures that the material is evenly wetted, thus improving the mixing quality.

[0070] The design of the protective net 6 reduces dust spillage, keeps the working environment clean, and also reduces the impact on the health of operators.

[0071] The cylinder cover device for twin-shaft mixers of this invention achieves advantages such as optimized structure, multi-functional integration, easy maintenance and replacement, improved safety, enhanced versatility, improved work efficiency, and reduced dust overflow. It is suitable for a variety of different mixer models and mixing processes and has broad application prospects.

[0072] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A new type of double-shaft mixer barrel cover device, comprising a barrel cover main body (1), characterized in that, The whole cylinder cover body (1) is in the shape of a prism, a top cover plate (8) is installed on the top of the cylinder cover body (1), a water inlet pipeline (2) is installed on the side of the cylinder cover body (1), the water inlet part of the water inlet pipeline (2) extends to the inside of the cylinder cover body (1), a cover (3) is also installed on the side of the cylinder cover body (1), the cover (3) is arranged opposite to the water inlet pipeline (2), an observation door (4) and an inspection door (7) are also arranged on the side of the cylinder cover body (1), the inspection door (7) is arranged opposite to the observation door (4), a protective net (6) is installed on the observation door (4), the water inlet pipeline (2) is in the shape of a trident, an inlet flange (9) is installed on the middle part of the water inlet pipeline (2), two installation flanges (10) are installed on the two ends of the water inlet pipeline (2), a water spraying pipeline is installed on each installation flange (10), a plurality of spray heads (12) are installed along the length direction of the water spraying pipeline, a plug cover (11) is installed on the tail end of each water spraying pipeline.

2. The new bowl cover device for twin-shaft mixers according to claim 1, characterized in that Gas springs (13) are arranged on the sides of the observation door (4) and the inspection door (7) to assist in opening and keeping the doors open.

3. The new type of double-shaft mixer barrel cover device according to claim 2, characterized in that, A safety switch (14) connected with a control box is also arranged on the side of the inspection door (7).

4. The new bowl cover device for twin-shaft mixers according to claim 2 or 3, characterized in that The observation door (4), the inspection door (7) and the protective net (6) are all installed on the cylinder cover body (1) through door frames (15).

5. The novel bowl cover arrangement for twin-shaft mixers as claimed in claim 4, wherein, The protective net (6) is installed on the door frame (15) through a hinge (16).

6. The novel bowl cover arrangement for twin-shaft mixers as claimed in claim 5, wherein, Four connection flanges (17) are installed on the cylinder cover body (1), two of the connection flanges (17) are connected with the corresponding installation flanges (10) to install the water inlet pipeline (2), and the other two connection flanges (17) are used to install the cover (3).

7. The new bowl cover device for twin-shaft mixers according to any one of claims 1 to 6, characterized in that An observation port (5) is arranged on the observation door (4).

8. The new type of double-shaft mixer barrel cover device according to claim 7, characterized in that, Sealing rings are arranged on the cylinder cover body (1) at the observation door (4) and the inspection door (7).