Pipe flange connector

Abstract

The pipe flange connector comprises a hollow connecting column and flanges located at the two open ends of the connecting column respectively, each flange comprises a flange part and a circular truncated cone part, the wide opening end of each circular truncated cone part is connected to one side of the corresponding flange part, and the inner walls of the two open ends of the connecting column are circular truncated cone slopes matched with the circular truncated cone parts. The flange is in threaded connection with the connecting column through a screw to enable at least part of the circular truncated cone part to be embedded into the open end of the connecting column, the flange part is exposed out of the open end of the connecting column, and the circular truncated cone part moves towards the center of the connecting column along with screwing of the screw and shrinks to abut against the circular truncated cone slope of the connecting column. According to the utility model, the flange is embedded into the two open ends of the connecting column in a sealing manner so as to realize the butt joint of the two pipes, so that on the premise of satisfying smooth water passing, the connecting mode between the pipes is simplified, the later maintenance is convenient, and the effects of conveniently dismounting and replacing the pipes and cleaning impurities in the pipes can be realized in the use process.

Description

Technical Field

[0001] The utility model relates to the technical field of pipe connection, and more specifically, to a pipe flange connector. Background Art

[0002] With the continuous development of modern life and the increasing demand for comfortable quality of life, the connection method of pipes must not only be reliable, but also easy to install. At present, flange connection pipe fittings are expensive, complex in structure, and need to be combined with hot melt, that is, one section of the pipe is melted by material. Although material melting is the most reliable connection method for installation, this connection method requires the use of special welding equipment. The cost of electric melting connection is relatively high. In actual use, there are some scenes where it is difficult to construct and welding equipment cannot be used; at the same time, pipes and fittings connected by material melting are more troublesome when leaks occur and later maintenance occurs.

[0003] Therefore, it is necessary to propose a new solution to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to overcome the deficiencies of the above-mentioned prior art and provide a pipe flange connector, which can achieve the docking of two pipes by embedding the flange seal into the two open ends of the connecting column. On the premise of ensuring smooth water flow, the connection method between the pipes is simplified, which is convenient for later maintenance. During use, it can achieve the effect of convenient disassembly and replacement of pipes and cleaning of impurities inside the pipes.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] A pipe flange connector includes a hollow connecting column and flanges respectively located at the two open ends of the connecting column, the flange includes a flange portion and a frustum portion, the wide end of the frustum portion is connected to one side of the flange portion, the inner walls of the two open ends of the connecting column are frustum slopes matched with the frustum portion, the flange is screwed to the connecting column by screws so that the frustum portion is at least partially embedded in the open end of the connecting column, and the flange portion is exposed outside the open end of the connecting column, and the frustum portion moves toward the center of the connecting column as the screws are tightened, and shrinks to abut the frustum slope of the connecting column.

[0007] Furthermore, the slope of the truncated cone portion is smaller than the slope of the truncated cone slope of the connecting column.

[0008] Furthermore, the flange portion is provided with a notch, one end of the notch extends through the conical portion, the flange portion is provided with at least one first through hole away from the notch, the flange portion is provided with at least two second through holes close to the notch and respectively located on both sides of the notch, and the connecting column is provided with a threaded hole corresponding to the first through hole and the second through hole.

[0009] Furthermore, the first through hole is a circular hole, and the second through hole is a long waist hole extending along the circumferential direction of the flange part.

[0010] Furthermore, a rubber ring groove is formed on the inner wall of the flange, and a rubber ring is installed in the rubber ring groove.

[0011] Furthermore, the inner ring of the rubber ring is evenly distributed with a plurality of anti-slip ribs along its axial direction.

[0012] Furthermore, the anti-skid rib is a ring structure with a triangular cross-section, and the pointed end of the anti-skid rib faces the center of the connecting column.

[0013] Furthermore, a limiting ring is provided around the inner wall of the connecting column.

[0014] The beneficial effects of the utility model are:

[0015] 1. In the utility model, the two open ends of the connecting column are embedded with flange seals to achieve the docking of two pipes. Under the premise of ensuring smooth water flow, the connection method between the pipes is simplified, which is convenient for later maintenance. During use, it can achieve the effect of convenient disassembly and replacement of pipes and cleaning of impurities inside the pipes.

[0016] 2. In the utility model, the flange conical part and the conical inclined surface of the connecting column cooperate with each other, so that the conical part moves toward the center of the connecting column and contracts inwardly as the screws are tightened, and abuts against the conical inclined surface of the connecting column more tightly, so as to achieve the effect of preventing water leakage between the conical part and the conical inclined surface.

[0017] 3. In the present invention, by providing a rubber ring, on the one hand, the stability of the connection between the flange and the pipe is improved, and after the flange is squeezed, deformed and contracted, the pipe can be effectively prevented from being dislodged by external force, and on the other hand, it has the effect of preventing water leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 A schematic diagram of the structure of the pipe flange connector in this embodiment;

[0019] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0020] Figure 3 This is a diagram of a use state of the pipe flange connector in this embodiment;

[0021] Figure 4 A schematic cross-sectional view of the connecting column in this embodiment;

[0022] Figure 5 A schematic diagram of the structure of the flange in this embodiment;

[0023] Figure 6A schematic diagram of a cross-sectional structure of the flange in this embodiment;

[0024] Figure 7 A schematic diagram of the structure of the rubber ring in this embodiment;

[0025] Figure 8 Schematic diagram of a cross-sectional structure of the rubber ring in this embodiment.

[0026] Figure numerals: connecting column 1, truncated cone inclined surface 101, threaded hole 102, limiting ring 103, flange 2, flange part 201, truncated cone part 202, notch 203, first through hole 204, second through hole 205, rubber ring groove 206, rubber ring 207, anti-slip rib 208, pipe 3, screw 4. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0028] Embodiment: A pipe flange connector, such as Figure 1-Figure 8 The method comprises a hollow connecting column 1 and a flange 2 located at the two open ends of the connecting column 1, wherein the flange 2 comprises a flange portion 201 and a frustum portion 202, wherein the wide end of the frustum portion 202 is connected to one side of the flange portion 201, and the inner walls of the two open ends of the connecting column 1 are frustum slopes 101 adapted to the frustum portion 202, and the flange 201 is exposed outside the open end of the connecting column 1, and the frustum portion 202 moves toward the center of the connecting column 1 as the screws 4 are tightened, and is squeezed and deformed to abut against the frustum slope 101 of the connecting column 1.

[0029] When in use, firstly, respectively put the two flanges 2 on the ends of the two pipes 3, and then screw the connecting column 1 with the screw 4 to embed the conical portion 202 of the flange 2 at least partially into the open end of the connecting column 1, and the conical portion 202 moves toward the center of the connecting column 1 as the screw 4 is tightened, and is squeezed and deformed to abut against the conical inclined surface 101 of the connecting column 1, that is, the more the conical portion 202 moves toward the center of the connecting column 1, the more it shrinks inward, and the tighter it abuts against the conical inclined surface 101 of the connecting column 1, and the two pipes 3 are butted together through the tight abutment between the conical portion 202 and the conical inclined surface 101.

[0030] Preferably, the slope of the truncated cone portion 202 is smaller than the slope of the truncated cone slope 101 of the connecting column 1, so that the truncated cone portion 202 moves toward the center of the connecting column 1, shrinks inward, and abuts against the truncated cone slope 101 of the connecting column 1 more tightly.

[0031] Further, such as Figure 5 , Figure 6 As shown, the flange portion 2 is provided with a notch 203, one end of which extends through the truncated cone portion 202; the notch 203 is provided to provide a deformation reserve for the flange 2, that is, when the truncated cone portion 202 is squeezed and deformed, the outer ring size thereof can be reduced to a size that can be embedded in the open end of the connecting column 1.

[0032] The flange portion 201 has at least one first through hole 204 away from the notch 203 , the flange portion 2 has at least two second through holes 205 close to the notch 203 and located on both sides of the notch 203 , and the connecting column 1 has threaded holes 102 corresponding to the first through hole 204 and the second through hole 205 .

[0033] like Figure 5 As shown, in this embodiment, the first through hole 204 is a circular hole, and two of them are provided. A bolt passes through the first through hole 204 and is then screwed into the threaded hole 102 to fix one end of the flange portion 201 to the connecting column 1; the second through hole 205 is a long waist hole extending along the circumferential direction of the flange portion 2, and two of them are provided. A bolt passes through the second through hole 205 and is then screwed into the threaded hole 102 to movably connect the other end of the flange portion 2 to the connecting column 1, that is, as the bolt is tightened, the two notched ends of the flange 2 approach each other to change the position of the bolt in the second through hole 205, and the second through hole 205 serves to prevent the bolt from interfering with the extrusion deformation of the flange 2.

[0034] Furthermore, the inner wall of the flange 2 is provided with a rubber ring groove 206, in which a rubber ring 207 is installed. The rubber ring 207 is made of a soft and easily deformable material. The rubber ring 207 is provided to improve the stability of the connection between the flange 2 and the pipe 3 on the one hand, and to prevent water leakage on the other hand; the rubber ring groove 206 is provided to effectively prevent the deformation and position deviation of the rubber ring 207 during installation.

[0035] As a preference, Figure 7 , Figure 8 As shown, the inner ring of the rubber ring 207 is evenly distributed with a plurality of anti-skid ribs 208 along its axial direction; by providing the anti-skid ribs 208, the stability of the connection between the flange 2 and the pipe 3 is further improved.

[0036] Preferably, the anti-skid rib 208 is a ring structure with a triangular cross section. When installed, the pointed end of the anti-skid rib 208 faces the center of the connecting column 1, that is, when in contact with the pipe 3, the pointed end of the anti-skid rib 208 faces the insertion direction of the pipe 3. Figure 1 , Figure 2 As shown; by adopting the above design, after the flange 2 is squeezed and deformed and shrunk, the pipe 3 can be effectively prevented from being dislodged by external force, and the effect of preventing water leakage can be achieved.

[0037] Furthermore, a limiting ring 103 is provided around the inner wall of the connecting column 1; Figure 4 As shown, in this embodiment, the limit ring 103 is located at the center of the connecting column 1; by setting the limit ring 103, on the one hand, the insertion stroke of the two pipes 3 into the connecting column 1 is limited, and on the other hand, the end of the pipe 3 abuts against the limit ring 103 to achieve a preliminary anti-leakage effect, and the flange 2 is squeezed and deformed and shrunk to be embedded in the connecting column 1 and the setting of the rubber ring 207 has a secondary anti-leakage effect.

[0038] During installation, first install the rubber ring 207 in the rubber ring groove 206, and the pointed end of the anti-slip rib 208 of the inner ring of the rubber ring 207 faces the insertion direction of the pipe 3, and then the two flanges 2 are respectively mounted on the ends of the two pipes 3, and then the connecting column 1 is moved between the two flanges 2 so that the two open ends of the connecting column 1 correspond to the two flanges 2 respectively, and the connecting column 1 is screwed with screws 4 to embed the conical part 202 of the flange 2 into the open end of the connecting column 1, and the conical part 202 moves toward the center of the connecting column 1 as the screws 4 are tightened, and is squeezed and deformed to abut against the conical inclined surface 101 of the connecting column 1, and at the same time, the conical part 202 forces the rubber ring 207 to be tightly connected to the pipe 3, and the connecting column 1 and the pipe 3 are tightly connected through the conical part 202 to achieve the docking of the two pipes 3.

[0039] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A pipe flange connector, comprising a hollow connecting column (1), and flanges (2) respectively located at two open ends of the connecting column (1), characterized in that: The flange (2) comprises a flange portion (201) and a truncated cone portion (202); the wide end of the truncated cone portion (202) is connected to one side of the flange portion (201); the inner walls of the two open ends of the connecting column (1) are truncated cone inclined surfaces (101) adapted to the truncated cone portion (202); the flange (2) is screwed to the connecting column (1) by means of screws (4) so ​​that the truncated cone portion (202) is at least partially embedded in the open end of the connecting column (1), and the flange portion (201) is exposed outside the open end of the connecting column (1); the truncated cone portion (202) moves toward the center of the connecting column (1) as the screws (4) are tightened, and shrinks to abut against the truncated cone inclined surface (101) of the connecting column (1).

2. A pipe flange connector according to claim 1, characterized in that: The slope of the truncated cone portion (202) is smaller than the slope of the truncated cone inclined surface (101) of the connecting column (1).

3. The pipe flange connector according to claim 1, characterized in that: The flange portion (201) is provided with a notch (203), one end of the notch (203) extends through the truncated cone portion (202), the flange portion (201) is provided with at least one first through hole (204) away from the notch (203), the flange portion (201) is provided with at least two second through holes (205) close to the notch (203) and respectively located on both sides of the notch (203), and the connecting column (1) is provided with a threaded hole (102) corresponding to the first through hole (204) and the second through hole (205).

4. A pipe flange connector according to claim 3, characterized in that: The first through hole (204) is a circular hole, and the second through hole (205) is a long waist hole extending along the circumferential direction of the flange part (201).

5. The pipe flange connector according to claim 1, characterized in that: The inner wall of the flange (2) is provided with a rubber ring groove (206), and a rubber ring (207) is installed in the rubber ring groove (206).

6. A pipe flange connector according to claim 5, characterized in that: The inner ring of the rubber ring (207) is evenly distributed with a plurality of anti-skid ribs (208) along its axial direction.

7. A pipe flange connector according to claim 6, characterized in that: The anti-skid rib (208) is a ring-shaped structure with a triangular cross-section, and the pointed end of the anti-skid rib (208) faces the center of the connecting column (1).

8. The pipe flange connector according to claim 1, characterized in that: A limiting ring (103) is provided circumferentially on the inner wall of the connecting column (1).

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