Flange steel flap valve for sewage pipeline

Abstract

The utility model relates to the field of sewage treatment, and particularly discloses a flange steel flap valve for a sewage pipeline, which comprises a steel connecting pipe, a flange plate capable of being connected with the sewage pipeline through a flange, a door opening device and a flap valve body arranged at the bottom of the connecting pipe, and the left side and the right side of the top of the connecting pipe are respectively hinged with a left door and a right door. The door opening device comprises a left protruding part arranged on the top face of the left door and a right protruding part arranged on the top face of the right door, the left side face of a connecting pipe is hinged to one end of a left air cylinder, the other end of the left air cylinder is hinged to the left protruding part, the right side face of the connecting pipe is hinged to a right air cylinder, and the other end of the right air cylinder is hinged to the right protruding part. Opening and closing of the left door and the right door can be achieved only through the left air cylinder and the right air cylinder, operation is more convenient, manual operation is not needed, and using is safer and more convenient.

Description

Technical Field

[0001] The utility model relates to the field of sewage treatment, in particular to a flange steel flap for sewage pipelines. Background Art

[0002] Existing sewage pipelines are equipped with flange steel flaps. For example, the steel flaps sold by Hebei Jincai Water Conservancy Machinery Co., Ltd. are used for sewage treatment. Its structure includes a steel connecting pipe and a flange plate that can be flange-connected to the sewage pipeline. The flange is provided at the bottom of the connecting pipe. The left and right sides of the top of the connecting pipe are respectively hinged with a left door and a right door. Handles are provided on the top surfaces of the left door and the right door. The flap needs to rely on its own weight and the medium to achieve the automatic opening and closing function. When there is no medium, such as during maintenance, it needs to be manually opened by a person. However, manually opening it is likely to splash sewage on the person. Moreover, flange steel flaps are generally installed at the outlet of the sewage pipeline, and the outlet position of the sewage pipeline is generally on a vertical or inclined plane, which is not easy to operate and is relatively dangerous, that is, it cannot be automatically opened during maintenance, and it cannot be reinforced after closing, and the installation stability and firmness cannot be further ensured. Summary of the Invention

[0003] The purpose of the present invention is to provide a flange steel flap for sewage pipelines, which can achieve automatic opening or closing during maintenance, and improve the stability and firmness after closing.

[0004] To achieve this purpose, the present invention adopts the following technical solutions: A flange steel flap for sewage pipelines includes a steel connecting pipe and a flange plate that can be flange-connected to the sewage pipeline. The flange is provided at the bottom of the connecting pipe. The left and right sides of the top of the connecting pipe are respectively hinged with a left door and a right door. It also includes an opening device. The opening device includes a left convex part provided on the top surface of the left door and a right convex part provided on the top of the right door. One end of a left air cylinder is hinged to the left side surface of the connecting pipe, and the other end of the left air cylinder is hinged to the left convex part. The right side surface of the connecting pipe is hinged with a right air cylinder, and the other end of the right air cylinder is hinged to the right convex part. During use, the left and right doors can be opened and closed by the telescopic movement of the left and right air cylinders, achieving automatic opening and closing without manual operation, making it safer and more convenient to use; moreover, in the closed state, the extension of the left and right air cylinders can also squeeze and reinforce the left and right doors, improving the stability and firmness of closing.

[0005] Further, a left convex edge is provided on the left side surface of the connecting pipe, and the left air cylinder is hinged to the top of the left convex edge. This position is convenient for the installation of the left air cylinder.

[0006] Further, a right convex edge is provided on the right side surface of the connecting pipe, and the right air cylinder is hinged to the top of the right convex edge. This design is convenient for the installation of the right air cylinder.

[0007] Furthermore, it further includes a left U-shaped plate. One end of the left air cylinder is rotatably installed in the left U-shaped plate through a left pin. A left screw rod is provided at the bottom of the left U-shaped plate, and the left screw rod is threadedly connected to the top of the left convex edge. A left U-shaped clamping plate is provided on the surface of the left convex part, and the other end of the left air cylinder is rotatably installed in one end of the left U-shaped clamping plate. This design facilitates the disassembly and assembly of the left air cylinder and makes it more flexible to use.

[0008] Furthermore, it further includes a right U-shaped plate. One end of the right air cylinder is rotatably installed in the right U-shaped plate through a right pin. A right screw rod is provided at the bottom of the right U-shaped plate, and the right screw rod is threadedly connected to the top of the right convex edge. A right U-shaped clamping plate is provided on the surface of the right convex part, and the other end of the right air cylinder is rotatably installed in one end of the right U-shaped clamping plate. This design facilitates the disassembly and assembly of the right air cylinder and makes it more flexible to use.

[0009] The beneficial effects of the present utility model: During maintenance, this product can open and close the left door and the right door only through the left air cylinder and the right air cylinder, without relying on a medium, the operation is more convenient, and there is no need for manual operation, making it safer and more convenient to use. Description of the Drawings

[0010] Figure 1 is a schematic structural diagram of the present utility model;

[0011] Figure 2 is a schematic diagram of a partial structure of the present utility model Figure 1 ;

[0012] Figure 3 is a schematic diagram of a partial structure of the present utility model Figure 2 ;

[0013] Among them, connecting pipe 1, left convex edge 11, right convex edge 12; flange 2; left door 3, left convex part 31, right air cylinder 42, left U-shaped clamping plate 33; right door 4, right convex part 41, left air cylinder 32, right U-shaped clamping plate 43; left U-shaped plate 5, left pin 51, left screw rod 52. Specific Embodiments

[0014] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It can be understood that the specific embodiments described herein are only used to explain the present invention, rather than limiting the present invention. Additionally, it should be noted that for the sake of description, only the parts related to the present invention are shown in the drawings, rather than all the structures. In the description of the present invention, unless otherwise clearly defined and limited, the terms "connected", "connected to", and "fixed" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the internal communication of two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0015] In the present invention, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on" the second feature includes that the first feature is directly above and obliquely above the second feature, or simply means that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "under", and "beneath" the second feature includes that the first feature is directly below and obliquely below the second feature, or simply means that the horizontal height of the first feature is lower than that of the second feature.

[0016] In the description of this embodiment, the orientation or positional relationships such as "above", "below", "left", and "right" are based on the orientation or positional relationships shown in the drawings, and are only for the convenience of description and simplifying the operation, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, so it cannot be understood as a limitation to the present invention. In addition, the terms "first" and "second" are only used for distinction in description and do not have special meanings.

[0017] As Figures 1-3 shown, a flange steel flap for a sewage pipe, the whole product is made of steel material, and includes a connecting pipe 1, a flange plate 2, a left door 3, and a right door 4. Among them, the flange plate 2 can be flange-connected to the sewage pipe, the flange plate 2 is arranged at the bottom of the connecting pipe 1, the left door 3 is hinged to the left side of the top of the connecting pipe 1, and the right door 4 is hinged to the right side of the top of the connecting pipe 1. This part of the structure is the same as the existing steel flap structure.

[0018] The improvement of this product lies in: it further includes an opening device, and this opening device includes a left convex part 31, a left convex part 31, a left air cylinder 32, a right convex part 41, and a right air cylinder 42.

[0019] As Figure 1As shown, the left convex portion 31 is an arc-shaped protrusion, and the left convex portion 31 is arranged on the top surface of the left door 3, the left side surface of the connecting pipe 1 is hinged to the left end of the left cylinder 32, and the right end of the left cylinder 32 is hinged to the left convex portion 31. Preferably, a left flange 11 is provided on the left side surface of the connecting pipe 1, the left cylinder 32 is hinged at the top of the left flange 11, and a left U-shaped plate 5 is provided on the top surface of the left flange 11, the left end of the left cylinder 32 is located in the left U-shaped plate 5, and a left latch 51 passes through the left cylinder 32 and the left U-shaped plate 5. When in use, the left cylinder 32 can rotate in the left U-shaped plate 5 through the left latch 51, a left screw rod 52 is vertically penetrated at the bottom of the left U-shaped plate 5, a left thread head is formed at the top of the left screw rod 52, and the left screw rod 52 is threadedly connected to the top of the left flange 11; further, a left U-shaped clamping plate 33 is provided on the surface of the left convex portion 31, and the right end of the left cylinder 32 can be rotatably installed in the left U-shaped clamping plate 33, that is, the end of the telescopic rod of the left cylinder 32 is located in the left U-shaped clamping plate 33, and the left rotating shaft passes through the end of the telescopic rod of the left cylinder 32 and the left U-shaped clamping plate 33.

[0020] Similarly, the right convex portion 41 is also an arc-shaped convex portion, and the right convex portion 41 is arranged at the top of the right door 4. The right side surface of the connecting pipe 1 is hinged to the right end of the right cylinder 42, and the left end of the right cylinder 42 is hinged to the right convex portion 41. That is, the right side surface of the connecting pipe 1 is provided with a right convex edge 12, and the right cylinder 42 is hinged to the top of the right convex edge 12. In addition, the product also includes a right U-shaped plate, the right end of the right cylinder 42 is located in the right U-shaped plate, the right pin passes through the right cylinder 42 and the right U-shaped plate, the right cylinder 42 can rotate in the right U-shaped plate through the right pin, a right screw rod is vertically passed through the bottom of the right U-shaped plate, the top of the right screw rod is provided with a right threaded head, and the right screw rod 52 is threadedly connected to the top of the right flange 12; furthermore, a right U-shaped clamping plate 43 is provided on the surface of the right convex portion 41, and the left end of the right cylinder 42 can be rotatably installed in the right U-shaped clamping plate 43, that is, the end of the telescopic rod of the right cylinder 42 is located in the right U-shaped clamping plate 43, and the end of the telescopic rod and the right U-shaped clamping plate 43 passed through the right cylinder 42 are right-rotatable.

[0021] In addition to the normal opening and closing functions of the existing flap door, the product can also be opened and closed with the aid of the left cylinder 32 and the right cylinder 42.

[0022] When closing, the left cylinder 32 and the right cylinder 42 are controlled to extend at the same time. The left cylinder 32 pushes the left door 3 to rotate and close around the connecting pipe 1, and the right cylinder 42 pushes the right door 4 to rotate and close around the connecting pipe 1. At this time, the left cylinder 32 will also press against the left door 3, and the right cylinder 42 will also press against the right door 4 to ensure the stability and firmness of the closing.

[0023] When opened, the left air cylinder 32 and the right air cylinder 42 are controlled to contract. The left air cylinder 32 drives the left door 3 to rotate leftward around the connecting pipe 1 to open, and the right air cylinder 42 drives the right door 4 to rotate rightward around the connecting pipe 1 to open. Moreover, when the left door 3 and the right door 4 are in the open state, the support can be pulled by the left air cylinder 32 and the right air cylinder 42 to ensure the stability and firmness of the opening.

[0024] Obviously, the above-mentioned embodiments of the present invention are merely examples for clearly illustrating the present invention, rather than limiting the implementation manners of the present invention. For those of ordinary skill in the art, various obvious changes, re-adjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to enumerate all the implementation manners here. Any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. A flange steel flap for a sewage pipeline, comprising a steel connecting pipe (1) and a flange plate (2) that can be flange-connected to the sewage pipeline. The flange plate (2) is provided at the bottom of the connecting pipe (1). The left side and the right side of the top of the connecting pipe (1) are respectively hinged with a left door (3) and a right door (4), and it is characterized in that: It further includes a door opening device, which includes a left convex portion (31) provided on the top surface of the left door (3), a right convex portion (41) provided on the top of the right door (4), one end of a left air cylinder (32) is hinged to the left side surface of the connecting pipe (1), and the other end of the left air cylinder (32) is hinged to the left convex portion (31), the right side surface of the connecting pipe (1) is hinged to a right air cylinder (42), and the other end of the right air cylinder (42) is hinged to the right convex portion (41).

2. The flange steel flap door for sewage pipelines according to claim 1, characterized in that: A left convex edge (11) is provided on the left side surface of the connecting pipe (1), and the left air cylinder (32) is hinged to the top of the left convex edge (11).

3. The flange steel flap door for sewage pipelines according to claim 2, characterized in that: A right convex edge (12) is provided on the right side surface of the connecting pipe (1), and the right air cylinder (42) is hinged to the top of the right convex edge (12).

4. The flange steel flap door for sewage pipelines according to claim 2, wherein: It further includes a left U-shaped plate (5), one end of the left air cylinder (32) is rotatably installed in the left U-shaped plate (5) through a left pin (51), a left screw rod (52) is provided at the bottom of the left U-shaped plate (5), and the left screw rod (52) is threadedly connected to the top of the left convex edge (11); a left U-shaped clamping plate (33) is provided on the surface of the left convex portion (31), and the other end of the left air cylinder (32) is rotatably installed in one end of the left U-shaped clamping plate (33).

5. The flange steel flap for sewage pipelines according to claim 4, characterized in that: It further includes a right U-shaped plate, one end of the right air cylinder (42) is rotatably installed in the right U-shaped plate through a right pin, a right screw rod is provided at the bottom of the right U-shaped plate, and the right screw rod is threadedly connected to the top of the right convex edge (12); a right U-shaped clamping plate (43) is provided on the surface of the right convex portion (41), and the other end of the right air cylinder (42) is rotatably installed in one end of the right U-shaped clamping plate (43).

Images