Rectangular louver valve

Abstract

The utility model relates to the technical field of louver valves, and discloses a rectangular louver valve which comprises a rectangular frame, limiting frames are arranged on the front portion and the rear portion of the inner wall of the rectangular frame respectively, mounting frames are welded to the outer sides of the limiting frames respectively, and a plurality of pressing rivet screws are in threaded connection with the left inner wall and the right inner wall of each mounting frame respectively. One end of the pressing rivet screw is in threaded connection with the rectangular frame, the pressing rivet screw, the mounting frame and the rectangular frame are arranged, the mounting frame and the rectangular frame are connected through the pressing rivet screw, and modular design of the limiting frame, the shutters and the driving mechanism of the valve body assembly is achieved. During maintenance, the modules can be separated only by disassembling local screws, the whole valve does not need to be disassembled, the maintenance time is shortened by more than 60%, the shutters, the connecting shafts, the arc-shaped limiting rods and the rectangular limiting rods are arranged, the shutters are clamped into the arc-shaped grooves through the connecting shafts, the inserting-pulling type design of the rectangular limiting rods is matched, independent replacement of the blades or a transmission shaft is supported, and the cost of spare parts is reduced by 40%.

Description

Technical Field

[0001] This utility model relates to the field of louver valve technology, specifically a rectangular louver valve. Background Technology

[0002] Rectangular louver valves can be used as ventilation and regulation equipment in ventilation and dust removal pipelines. They are mainly suitable for ventilation, dust removal and environmental protection in industries such as metallurgy, mining, cement, chemical industry and power generation. They are characterized by light weight, low flow resistance, simple structure and flexible start-up.

[0003] The existing louver valve's drive mechanism is located inside the protective cover. After installation, it is inconvenient to inspect and maintain the rectangular louver valve, resulting in poor performance and stability. Furthermore, the traditional structure requires replacing the entire set of blades, increasing maintenance costs. Therefore, a rectangular louver valve is proposed to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a rectangular louver valve to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a rectangular louver valve, comprising a rectangular frame,

[0006] The inner wall of the rectangular frame is provided with limit frames at both the front and back. The outer side of each limit frame is welded with an installation frame. The left and right inner walls of each installation frame are threaded with several press screws, one end of which is threaded to the rectangular frame.

[0007] Furthermore, the limiting frame has several arc-shaped grooves in the middle, and a connecting shaft is engaged in the middle of the arc-shaped grooves. A louver is fixedly connected to the lower end of the connecting shaft.

[0008] Furthermore, the right end of the connecting shaft passes through the limiting frame, and a rectangular groove is provided at the right end of the connecting shaft.

[0009] Furthermore, a rectangular limiting rod is engaged in the middle of the rectangular groove, and a limiting ring is fixedly connected to the right end of the rectangular limiting rod. The limiting ring is rotatably connected to the rectangular frame.

[0010] Furthermore, a first connecting rod is fixedly connected to the right end of the limiting ring, and a fixed shaft is fixedly connected to the outer end of the first connecting rod.

[0011] Furthermore, a second connecting rod is rotatably connected to the middle of the fixed shaft.

[0012] Furthermore, a rotating shaft is fixedly connected to the outer end of the first connecting rod, and one end of the rotating shaft is fixedly connected to the output end of the servo motor.

[0013] Furthermore, a support plate is fixedly connected to the bottom end of the servo motor, and the support plate is fixedly connected to the rectangular frame.

[0014] Furthermore, mounting plates are fixedly connected to both the left and right sides of the rectangular frame, and several mounting holes are opened in the middle of the mounting plates.

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

[0016] By using rivet screws, mounting frames, and rectangular frames, and connecting the mounting frames and rectangular frames with rivet screws, a modular design is achieved for the valve body assembly's limiting frame, louvers, and drive mechanism. During maintenance, only partial screw removal is required to separate the modules, eliminating the need for complete valve disassembly, reducing maintenance time by over 60%. The inclusion of louvers, connecting shafts, and arc-shaped and rectangular limiting rods allows the louvers to engage with the arc-shaped groove via the connecting shaft. The plug-and-play design of the rectangular limiting rods supports individual replacement of blades or drive shafts, reducing spare parts costs by 40%. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In all drawings, similar elements or parts are generally identified by similar reference numerals. In the drawings, the elements or parts are not necessarily drawn to scale.

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This is a front cross-sectional view of the present invention.

[0020] Figure 3 This is a schematic diagram of the right-side structure of this utility model;

[0021] Figure 4 This is a top cross-sectional view of the present invention.

[0022] In the diagram: 1. Rectangular frame; 2. Limiting frame; 3. Mounting frame; 4. Press-fit screw; 5. Arc groove; 6. Connecting shaft; 7. Louver; 8. Rectangular groove; 9. Rectangular limiting rod; 10. Limiting ring; 11. First connecting rod; 12. Fixed shaft; 13. Second connecting rod; 14. Rotating shaft; 15. Servo motor; 16. Support plate; 17. Mounting plate; 18. Mounting hole. Detailed Implementation

[0023] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0025] 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.

[0026] Please see Figure 1-4 This utility model provides a rectangular louver valve technical solution: a rectangular louver 7 valve that is easy to maintain, including a rectangular frame 1, with limit frames 2 set on the front and back of the inner wall of the rectangular frame 1, and mounting frames 3 welded to the outer side of the limit frames 2. Several rivet screws 4 are threadedly connected to the left and right inner walls of the mounting frames 3. By setting rivet screws 4, mounting frames 3 and rectangular frame 1, and connecting mounting frames 3 and rectangular frame 1 with rivet screws 4, the modular design of valve body components limit frames 2, louvers 7 and drive mechanism is realized. During maintenance, only some screws need to be removed to separate the module, without disassembling the entire valve, reducing maintenance time by more than 60%. One end of the rivet screw 4 is threaded to the rectangular frame 1. Several arc-shaped grooves 5 are opened in the middle of the limiting frame 2. The connecting shaft 6 is engaged in the middle of the arc-shaped grooves 5. The lower end of the connecting shaft 6 is fixedly connected to the louver 7. By setting up the louver 7, the connecting shaft 6, and the arc and rectangular limiting rods 9, the louver 7 is engaged into the arc-shaped groove 5 through the connecting shaft 6. With the plug-in design of the rectangular limiting rod 9, it is possible to replace the blades or the drive shaft individually, reducing spare parts costs by 40%.

[0027] The right end of the connecting shaft 6 passes through the limiting frame 2. A rectangular groove 8 is provided at the right end of the connecting shaft 6. A rectangular limiting rod 9 is engaged in the middle of the rectangular groove 8. A limiting ring 10 is fixedly connected to the right end of the rectangular limiting rod 9. The limiting ring 10 is rotatably connected to the rectangular frame 1. A first connecting rod 11 is fixedly connected to the right end of the limiting ring 10. A fixed shaft 12 is fixedly connected to the outer end of the first connecting rod 11. A second connecting rod 13 is rotatably connected to the middle of the fixed shaft 12. A rotating shaft 14 is fixedly connected to the outer end of the first connecting rod 11. One end of the rotating shaft 14 is fixedly connected to the output end of the servo motor 15. A support plate 16 is fixedly connected to the bottom end of the servo motor 15. The support plate 16 is fixedly connected to the rectangular frame 1. Mounting plates 17 are fixedly connected to both the left and right sides of the rectangular frame 1. Several mounting holes 18 are provided in the middle of the mounting plates 17.

[0028] In use, the servo motor 15 serves as the power source, driving the first connecting rod 11 to rotate via the rotating shaft 14, which in turn drives the fixed shaft 12 and the second connecting rod 13 to form a linkage mechanism. This transmission system converts the motor's circular motion into linear reciprocating motion, ultimately controlling the synchronous rotation of all louvers 7 through the linkage between the rectangular limiting rod 9 and the connecting shaft 6. Each louver 7 is fixed within the arc-shaped groove 5 of the limiting frame 2 via the connecting shaft 6. When the connecting shaft 6 is rotated by an external force, the louvers swing around the axis within a range of 0-90°. The rectangular grooves 8 at the right ends of all connecting shafts 6 are rigidly engaged with the rectangular limiting rods 9, forming a "one-rod-driven-multi-axis" structure, ensuring that all louver movements are completely synchronized and preventing leakage or turbulence caused by blade misalignment.

[0029] 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 rectangular louver valve comprising a rectangular frame (1), characterized in that: The inner wall of the rectangular frame (1) is provided with a limiting frame (2) in front and back, the outer side of the limiting frame (2) is welded with a mounting frame (3), the left and right inner walls of the mounting frame (3) are threadedly connected with a plurality of press-in screws (4), one end of the press-in screw (4) is threadedly connected with the rectangular frame (1).

2. A louver valve according to claim 1, wherein: A plurality of arc-shaped grooves (5) are formed in the middle of the limiting frame (2), the arc-shaped grooves (5) are clamped and connected with a connecting shaft (6) in the middle, the lower end of the connecting shaft (6) is fixedly connected with a louver (7).

3. A louver valve according to claim 2, wherein: The right end of the connecting shaft (6) penetrates the limiting frame (2), and a rectangular groove (8) is formed in the right end of the connecting shaft (6).

4. A louver valve according to claim 3, wherein: The rectangular groove (8) is clamped and connected with a rectangular limiting rod (9) in the middle, the right end of the rectangular limiting rod (9) is fixedly connected with a limiting ring (10), and the limiting ring (10) is rotatably connected with the rectangular frame (1).

5. A louver valve according to claim 4, wherein: The right end of the limiting ring (10) is fixedly connected with a first connecting rod (11), and the outer end of the first connecting rod (11) is fixedly connected with a fixed shaft (12).

6. A louver valve according to claim 5, wherein: The middle of the fixed shaft (12) is rotatably connected with a second connecting rod (13).

7. A louver valve according to claim 5, wherein: The outer end of the first connecting rod (11) is fixedly connected with a rotating shaft (14), one end of the rotating shaft (14) is fixedly connected with the output end of a servo motor (15).

8. A louver valve according to claim 7, wherein: The bottom end of the servo motor (15) is fixedly connected with a supporting plate (16), and the supporting plate (16) is fixedly connected with the rectangular frame (1).

9. A louver valve according to claim 1, wherein: The left and right sides of the rectangular frame (1) are fixedly connected with a mounting plate (17), and a plurality of mounting holes (18) are formed in the middle of the mounting plate (17).

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