Anti-stick flange device

Abstract

The utility model relates to flange device field discloses a kind of anti-sticking flange devices, including polyurethane pipe, the side outer wall of polyurethane pipe is provided with sealing mechanism, the sealing mechanism includes the first flange being arranged in the side outer wall of polyurethane pipe, the side of first flange front end outer wall near middle part is provided with sliding slot, waterproof groove is arranged at the edge of first flange front end outer wall, first waterproof pad ring is fixedly connected to the side of first flange front end outer wall near waterproof groove, the front end outer wall of first flange is connected with the second flange with clamping cooperation.In the utility model, the adhesion of polyurethane to silica gel is smaller, by limiting frame, silica gel sealing ring is installed to flange surface, during work, silica gel separates metal flange from polyurethane, so that polyurethane directly contacts silica gel pad ring, when flange is separated after work is completed, the flatness of pipe end is guaranteed, its appearance cannot be damaged, and the performance of polyurethane is not changed simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of flange devices, and in particular to an anti-stick flange device. Background Technology

[0002] Anti-stick flange devices are industrial pipeline connection components whose main function is to prevent the medium from sticking or crystallizing at the flange sealing surface, ensuring that the flange connection can be easily disassembled. This device usually achieves the anti-stick effect by integrating a special coating, non-metallic gasket, or movable design on the flange surface. It is widely used in pipeline systems in chemical, petroleum, and pharmaceutical industries that handle easily condensing, corrosive, or high-viscosity materials, ensuring production safety and continuity while extending the service life of critical equipment.

[0003] Traditional cast-in-place flanges come into direct contact with the polyurethane raw material after the polyurethane has been inflated. Because polyurethane has a strong adhesion to metal materials, the pipe end is severely damaged when the flange is separated from the polyurethane, which affects the appearance of the product and damages the performance of the polyurethane. In addition, the sealing performance of traditional anti-stick flange devices is relatively poor.

[0004] Therefore, those skilled in the art have provided an anti-stick flange device to solve the problems mentioned in the background art. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by proposing an anti-stick flange device. Polyurethane has low adhesion to silicone. Through a limiting bracket, the silicone sealing ring is installed on the flange surface. During operation, the silicone separates the metal flange from the polyurethane, allowing the polyurethane to directly contact the silicone gasket. When the flange is detached after operation, the flatness of the pipe end is ensured, its appearance is not damaged, and the performance of the polyurethane is not changed.

[0006] To achieve the above objectives, the present invention provides the following technical solution: An anti-stick flange device includes a polyurethane pipe. A sealing mechanism is provided on one outer wall of the polyurethane pipe. The sealing mechanism includes a first flange provided on one outer wall of the polyurethane pipe. A sliding groove is formed on the side of the front outer wall of the first flange near the middle. A waterproof groove is formed at the edge of the front outer wall of the first flange. A first waterproof gasket is fixedly connected to the side of the front outer wall of the first flange near the waterproof groove. A second flange is snap-fitted to the front outer wall of the first flange. Sliding seats are fixedly connected to the upper and lower ends of the rear outer wall of the second flange. An outer shell is fixedly connected to the edge of the second flange. A second waterproof gasket is fixedly connected to the inner wall of the outer shell. A limit ring is fixedly connected to the edge of the rear outer wall of the second flange. An installation groove is formed inside the outer shell. The front outer wall of the second flange is provided with an anti-sticking mechanism, which includes a limiting frame fixedly connected to the front outer wall of the second flange, a silicone gasket ring inside the limiting frame, and a fixing cylinder fixedly connected to the middle of the front outer wall of the second flange. With the above technical solution, polyurethane has a low adhesion to silicone. By using a limiting bracket, the silicone sealing ring is installed on the flange surface. During operation, the silicone separates the metal flange from the polyurethane, allowing the polyurethane to directly contact the silicone gasket. When the flange is detached after operation, the flatness of the pipe end is ensured, its appearance is not damaged, and the performance of the polyurethane is not changed.

[0007] Furthermore, a plurality of first threaded holes are provided at the edge of the outer wall of the front end of the second flange, and a plurality of second threaded holes are provided at the edge of the outer wall of the rear end of the first flange. The above technical solution allows the first and second flanges to be snapped together by the sliding groove and sliding seat, and then fixed by the first and second threaded holes. The first and second waterproof gaskets can improve the sealing effect of the equipment, and the limit ring can further enhance the sealing effect.

[0008] Furthermore, the sliding seat slides inside the sliding groove, and the limiting ring engages with the waterproof groove; The above technical solution allows for sealing by engaging the limiting ring with the waterproof groove.

[0009] Furthermore, the outer wall of the rear end of the second flange is in close contact with the outer wall of the front end of the first flange; The above technical solution achieves connection by tightly fitting the outer wall of the rear end of the second flange to the outer wall of the front end of the first flange.

[0010] Furthermore, the first threaded hole is aligned with the second threaded hole; The above technical solution allows for fixation by aligning the first threaded hole with the second threaded hole.

[0011] Furthermore, the outer wall of the front end of the first waterproof gasket is tightly fitted to the outer wall of the rear end of the second flange; The above technical solution strengthens the seal by ensuring that the outer wall of the front end of the first waterproof gasket fits tightly against the outer wall of the rear end of the second flange.

[0012] Furthermore, the silicone gasket ring is tightly fitted to the outer wall of the polyurethane tube; The above technical solution improves the sealing effect by ensuring a tight fit between the silicone gasket ring and the outer wall of the polyurethane tube.

[0013] This utility model has the following beneficial effects: 1. The present invention proposes an anti-stick flange device. Polyurethane has a low adhesion to silicone. The silicone sealing ring is installed on the flange surface through a limiting bracket. During operation, the silicone separates the metal flange from the polyurethane, allowing the polyurethane to directly contact the silicone gasket. When the flange is detached after operation, the pipe end is kept flat and its appearance is not damaged, while ensuring that the performance of the polyurethane is not changed.

[0014] 2. The anti-stick flange device proposed in this utility model can clamp the first flange and the second flange by means of the sliding groove and the sliding seat. Then, it can be fixed by means of the first threaded hole and the second threaded hole. The sealing effect of the equipment can be improved by means of the first waterproof gasket and the second waterproof gasket, and the sealing effect can be further enhanced by means of the limit ring. Attached Figure Description

[0015] Figure 1 This is an isometric view of an anti-stick flange device proposed in this utility model; Figure 2 This is a schematic diagram of the structure of an anti-stick flange device proposed in this utility model; Figure 3 This is an isometric view of the sealing mechanism in an anti-stick flange device proposed in this utility model; Figure 4 This is a schematic diagram of the sealing mechanism in an anti-stick flange device proposed in this utility model; Figure 5 This is a side sectional view of an anti-stick flange device proposed in this utility model.

[0016] Legend: 1. Polyurethane pipe; 2. Sealing mechanism; 201. Outer shell; 202. First threaded hole; 203. First waterproof gasket; 204. Slide groove; 205. Second threaded hole; 206. First flange; 207. Second flange; 208. Sliding seat; 209. Mounting groove; 2010. Limiting ring; 2011. Second waterproof gasket; 2012. Waterproof groove; 3. Anti-sticking mechanism; 301. Limiting bracket; 302. Silicone gasket ring; 303. Fixing cylinder. Detailed Implementation

[0017] 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.

[0018] One embodiment provided by this utility model: Reference Figure 2 , Figure 3 and Figure 5 An anti-stick flange device includes a polyurethane pipe 1. A sealing mechanism 2 is provided on one outer wall of the polyurethane pipe 1. The sealing mechanism 2 includes a first flange 206 provided on one outer wall of the polyurethane pipe 1. A sliding groove 204 is provided on the side of the front outer wall of the first flange 206 near the middle. A waterproof groove 2012 is provided at the edge of the front outer wall of the first flange 206. A first waterproof gasket 203 is fixedly connected to the side of the front outer wall of the first flange 206 near the waterproof groove 2012. A second flange 207 is snapped onto the front outer wall of the first flange 206. A sliding seat 208 is fixedly connected to the upper and lower ends of the rear outer wall of the second flange 207. An outer shell 201 is fixedly connected to the edge of the second flange 207. A second waterproof gasket 2011 is fixedly connected to the inner wall of the outer shell 201. A limit ring 2010 is fixedly connected to the edge of the rear outer wall of the second flange 207. An installation groove 209 is provided inside the outer shell 201. The front outer wall of the second flange 207 is provided with an anti-sticking mechanism 3. The anti-sticking mechanism 3 includes a limiting frame 301 fixedly connected to the front outer wall of the second flange 207. A silicone gasket ring 302 is provided inside the limiting frame 301. A fixing cylinder 303 is fixedly connected to the middle of the front outer wall of the second flange 207. Polyurethane has a relatively low adhesion to silicone. The silicone sealing ring is installed on the flange surface through the limiting bracket 301. During operation, the silicone separates the metal flange from the polyurethane, allowing the polyurethane to directly contact the silicone gasket 302. When the flange is detached after operation, the flatness of the pipe end is ensured, its appearance is not damaged, and the performance of the polyurethane is not changed.

[0019] Reference Figure 1 , Figure 4 and Figure 5The second flange 207 has multiple first threaded holes 202 at the edge of its front outer wall, and the first flange 206 has multiple second threaded holes 205 at the edge of its rear outer wall. The first flange 206 and the second flange 207 can be snapped together by the sliding groove 204 and the sliding seat 208. They are then fixed by the first threaded holes 202 and the second threaded holes 205. The first waterproof gasket 203 and the second waterproof gasket 2011 improve the sealing effect of the equipment, and the limiting ring 2010 further enhances the sealing effect. The sliding seat 208 slides inside the sliding groove 204, and the limiting ring 2010 engages with the waterproof groove 2012. The system can be sealed by tightly fitting the outer wall of the rear end of the second flange 207 to the outer wall of the front end of the first flange 206. The connection is achieved through this tight fit between the outer wall of the rear end of the second flange 207 and the outer wall of the front end of the first flange 206. The first threaded hole 202 and the second threaded hole 205 are aligned for fixation. The outer wall of the front end of the first waterproof gasket 203 is tightly fitted to the outer wall of the rear end of the second flange 207, which enhances the seal. The silicone gasket 302 is tightly fitted to the outer wall of the polyurethane tube 1, which improves the sealing effect.

[0020] Working principle: When the device is needed, first connect the first flange 206 to the polyurethane pipe 1. Then, put the sliding seat 208 on the second flange 207 into the slide groove 204 and rotate it. Then, the second threaded hole 205 and the first threaded hole 202 are aligned and fixed through the second threaded hole 205 and the first threaded hole 202. During use, the silicone gasket 302 can prevent polyurethane from sticking, and the second waterproof gasket 2011 can seal it. When water passes through the first threaded hole 202 and the second threaded hole 205, the first waterproof gasket 203 can provide a secondary seal. The limiting ring 2010 can prevent water from entering the pipe from the limiting ring 2010.

[0021] The following points should be noted in this article: 1. The accompanying drawings of the embodiments disclosed herein only relate to the structures involved in the embodiments disclosed herein; other structures can be referred to in general design.

[0022] 2. Where there is no conflict, the embodiments of this disclosure and the features thereof can be combined with each other to obtain new embodiments. In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. The specific meaning of the above terms in this utility model shall be understood by those skilled in the art based on the specific circumstances. In addition, unless otherwise stated, "multiple" means two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front end," "rear end," "head," "tail," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description. They 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, and should not be construed as a limitation on this utility model; the terms "first," "second," "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing specific embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A non-stick flange device comprising a polyurethane tube (1), characterized in that: A sealing mechanism (2) is provided on one side of the outer wall of the polyurethane pipe (1). The sealing mechanism (2) includes a first flange (206) provided on one side of the outer wall of the polyurethane pipe (1). A groove (204) is provided on the side of the outer wall of the front end of the first flange (206) near the middle. A waterproof groove (2012) is provided at the edge of the outer wall of the front end of the first flange (206). A first waterproof gasket (203) is fixedly connected to the side of the outer wall of the front end of the first flange (206) near the waterproof groove (2012). The front outer wall of the second flange (206) is fitted with a second flange (207). The upper and lower ends of the rear outer wall of the second flange (207) are fixedly connected to sliding seats (208). The edge of the second flange (207) is fixedly connected to an outer shell (201). The inner wall of the outer shell (201) is fixedly connected to a second waterproof gasket (2011). The edge of the rear outer wall of the second flange (207) is fixedly connected to a limit ring (2010). The inner part of the outer shell (201) is provided with an installation groove (209). The front outer wall of the second flange (207) is provided with an anti-sticking mechanism (3). The anti-sticking mechanism (3) includes a limiting frame (301) fixedly connected to the front outer wall of the second flange (207). A silicone gasket ring (302) is provided inside the limiting frame (301). A fixing cylinder (303) is fixedly connected to the middle of the front outer wall of the second flange (207).

2. The anti-stick flange device according to claim 1, characterized in that: The second flange (207) has multiple first threaded holes (202) at the edge of the front outer wall, and the first flange (206) has multiple second threaded holes (205) at the edge of the rear outer wall.

3. The anti-stick flange device according to claim 1, characterized in that: The sliding seat (208) slides inside the sliding groove (204), and the limiting ring (2010) engages with the waterproof groove (2012).

4. The anti-stick flange device according to claim 1, characterized in that: The outer wall of the rear end of the second flange (207) is tightly fitted to the outer wall of the front end of the first flange (206).

5. The anti-stick flange device according to claim 2, characterized in that: The first threaded hole (202) is aligned with the second threaded hole (205).

6. The anti-stick flange device according to claim 1, characterized in that: The front outer wall of the first waterproof gasket (203) is tightly fitted to the rear outer wall of the second flange (207).

7. The anti-stick flange device according to claim 1, characterized in that: The silicone gasket ring (302) is tightly fitted to the outer wall of the polyurethane tube (1).

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