Multifunctional plastic flange head assembly

Abstract

The multifunctional plastic flange head assembly comprises a flange head and a flange piece, the flange head comprises a flange head body and a connecting clamping ring which are integrally arranged, an installation groove is formed in the connecting clamping ring, the flange piece is arranged in the installation groove, and corresponding penetrating through holes are evenly formed in the corresponding positions of the connecting clamping ring and the flange piece. A spring gasket is further arranged on the flange piece, a large-radian slope is arranged on the inner side of the connecting clamping ring, a guide sealing face is further arranged on the outer end face of the connecting clamping ring, and the guide sealing face is higher than the surface of the connecting clamping ring. Dovetail tenons are arranged in the circumferential direction of the flange pieces, and clamping grooves corresponding to the dovetail tenons are formed in the circumferential direction of the connecting clamping ring. By arranging the spring washer, the friction force between the nut and the bolt is increased, and the connection stability is enhanced; flange sheet dovetail tenons are arranged, so that the flange sheets are prevented from being disengaged when being stressed, and the overall bonding strength is enhanced; the guide sealing surface is arranged and designed to be higher than the surface of the pipe fitting, it is guaranteed that an effective contact surface is formed by a product, and the sealing performance is improved.

Description

Technical Field

[0001] The utility model belongs to the field of plastic pipe water supply, and in particular relates to a multifunctional plastic flange head component. Background Art

[0002] In the plastic pipe water supply system, plastic pipes are mostly connected by flanges, which is convenient for subsequent maintenance. At present, the connection of plastic pipes is mainly based on flange head plus flange connection. The method is to first place (i.e., put on) the corresponding flange on the plastic pipe, then weld the flange head on the pipe by hot melt, then align the two flange heads of the two pipes to be connected and install anti-leakage pads, and finally tighten the flanges placed in advance (i.e., put on) with bolts, so that the connection of the two plastic pipes is achieved; the existing flange head has the disadvantages of poor stability and poor bonding strength during connection, so the present application proposes an improved multifunctional plastic flange head. Utility Model Content

[0003] In view of the above problems, the utility model provides a multifunctional plastic flange head assembly to solve the technical problems of poor stability and poor bonding strength during the connection of the existing flange heads.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A multifunctional plastic flange head assembly includes a flange head and a flange sheet, the flange head includes an integrally arranged flange head body and a connecting clamp, the connecting clamp is provided with a mounting groove, the flange sheet is arranged in the mounting groove, corresponding through holes are evenly arranged at corresponding positions of the connecting clamp and the flange sheet, a spring gasket is also arranged on the flange sheet, a large arc slope is arranged on the inner side of the connecting clamp, and a guide sealing surface is also arranged at the outer end face of the connecting clamp, and the height of the guide sealing surface is higher than the surface of the connecting clamp.

[0006] As a further technical solution, a dovetail tenon is circumferentially arranged on the flange, and the dovetail tenon is narrow at the root and wide at the end.

[0007] As a further technical solution, a groove corresponding to the dovetail tenon is arranged in the circumference of the connecting clamp ring, and the dovetail tenon and the groove are fixed to each other by clamping.

[0008] As a further technical solution, the spring gasket is arranged corresponding to the through hole on the flange.

[0009] As a further technical solution, the large-arc slope is arranged on the inner side of the connecting clamp, and the large-arc slope is connected to the inner cavity wall of the flange head body.

[0010] Compared with the prior art, the technical solution of the utility model has the following beneficial effects:

[0011] The utility model provides a spring washer to provide an elastic force to the nut after the nut is tightened, so that the nut is pressed tightly and is not easy to fall off. The elastic force increases the friction between the nut and the bolt, thereby enhancing the stability of the connection.

[0012] The utility model provides a flange dovetail tenon with a narrow root and a wide end, which effectively prevents the flange from coming apart when stressed, thereby enhancing the overall bonding strength of the product.

[0013] The utility model sets a guide sealing surface, designs the sealing surface to be higher than the surface of the pipe fitting, and contacts with other surfaces before, thereby ensuring that the product forms an effective contact surface and improving the sealing performance of the product;

[0014] The flange body of the utility model is directly injection molded onto the outer surface of the flange head, which solves the problem of uneven surface of plastic products caused by product cooling and shrinkage, improves the strength of the flange head, ensures the flatness of the force-bearing surface, and reduces water leakage caused by uneven force on the fasteners.

[0015] The utility model adjusts the corresponding positions between the flange and the butterfly valve to a certain extent by arranging a large arc slope, reduces possible friction points, and improves the stability of the entire system. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the structure of the multifunctional plastic flange head assembly of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the multifunctional plastic flange head assembly of the utility model-1;

[0018] Figure 3 This is a schematic diagram of the flange structure of the utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the flange head of the utility model;

[0020] Figure 5 for Figure 1 Front view;

[0021] Figure 6 for Figure 1 Top view;

[0022] Figure 7 for Figure 1 Bottom view;

[0023] Figure 8 for Figure 1 vertical cross-section;

[0024] In the figure: 1. flange head; 2. flange plate; 21. dovetail tenon; 3. flange head body; 4. connecting clamp ring; 41. mounting groove; 42. clamping groove; 5. through hole; 6. spring gasket; 7. large arc slope; 8. guide sealing surface. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described in detail below. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other implementation methods obtained by ordinary technicians in this field without creative work belong to the scope of protection of the utility model.

[0026] like Figure 1-Figure 8 As shown, the utility model is a multifunctional plastic flange head assembly, including a flange head 1 and a flange plate 2, the flange head 1 includes an integrally arranged flange head body 3 and a connecting clamp 4, the connecting clamp 4 is provided with a mounting groove 41, the flange plate 2 is arranged in the mounting groove 41, and corresponding through holes 5 are evenly arranged at corresponding positions of the connecting clamp 4 and the flange plate 2 for bolted fixing connection; in order to increase the firmness of the connection, a spring gasket 6 is also arranged on the flange plate 2, and the spring gasket 6 is arranged corresponding to the through hole 5 on the flange plate 2.

[0027] In order to increase the sealing of the connection, a large arc slope 7 is provided on the inner side of the connecting clamp 4, and a guide sealing surface 8 is also provided on the outer end surface of the connecting clamp 4. Preferably, the height of the guide sealing surface 8 is higher than the surface of the connecting clamp 4.

[0028] The flange 2 is provided with a dovetail 21 in the circumference, and the dovetail 21 is narrow at the root and wide at the end. Correspondingly, the connecting clamp 4 is provided with a slot 42 corresponding to the dovetail 21 in the circumference, and the dovetail 21 and the slot 42 are fixedly connected to each other.

[0029] The large-arc slope 7 is arranged on the inner side of the connecting clamp 4, and the large-arc slope 7 is connected to the inner cavity wall of the flange head body 3, and the diameter gradually widens.

[0030] The utility model is different from other device products: 1. This product adopts the injection molding of steel flange 2 and plastic flange head 1 into one piece; 2. This product comes with spring gasket 6, which does not need secondary installation. After the nut is tightened, it provides an elastic force to the nut to make it tight and not easy to fall off. This elastic force increases the friction between the nut and the bolt, thereby enhancing the stability of the connection; 3. The flange 2 of this product is equipped with a dovetail tenon 21, which is narrow at the root and wide at the end, effectively preventing it from being disengaged when subjected to force, and enhancing the overall bonding strength of the product; 4. The main body of the flange 2 is directly injection molded onto the stress surface of the flange head 1, which solves the problem of uneven surface caused by the cooling and shrinkage of the plastic product, ensures the overall strength of the flange head 1, and improves the convenience of installation of the flange 2; 5. The large arc slope 7 on the inner side of the pipe fitting adjusts the corresponding position between the flange and the butterfly valve to a certain extent, reduces possible friction points, and improves the stability of the entire system; 6. A guide sealing surface 8 is set, and the guide sealing surface 8 is designed to be higher than the surface of the pipe fitting, and contacts before other surfaces, to ensure that the product forms an effective contact surface and improve the sealing of the product.

[0031] The above is only a specific implementation of the utility model, but the protection scope of the utility model is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the utility model, which should be included in the protection scope of the utility model. Therefore, the protection scope of the utility model should be based on the protection scope of the claims.

Claims

1. A multifunctional plastic flange head assembly, characterized in that: The invention comprises a flange head (1) and a flange plate (2), wherein the flange head (1) comprises an integrally arranged flange head body (3) and a connecting clamp (4), the connecting clamp (4) being provided with a mounting groove (41), the flange plate (2) being arranged in the mounting groove (41), corresponding through holes (5) being evenly arranged at corresponding positions of the connecting clamp (4) and the flange plate (2), a spring washer (6) being further arranged on the flange plate (2), a large arc slope (7) being arranged on the inner side of the connecting clamp (4), and a guide sealing surface (8) being further arranged on the outer end surface of the connecting clamp (4), the height of the guide sealing surface (8) being higher than the surface of the connecting clamp (4).

2. A multifunctional plastic flange head assembly according to claim 1, characterized in that: The flange (2) is provided with a dovetail tenon (21) in the circumferential direction, and the dovetail tenon (21) is narrow at the base and wide at the end.

3. A multifunctional plastic flange head assembly according to claim 2, characterized in that: A clamping groove (42) corresponding to the dovetail tenon (21) is provided in the circumferential direction of the connecting clamp ring (4), and the dovetail tenon (21) and the clamping groove (42) are clamped and fixed to each other.

4. A multifunctional plastic flange head assembly according to claim 1, characterized in that: The spring gasket (6) is arranged corresponding to the through hole (5) on the flange (2).

5. The multifunctional plastic flange head assembly according to claim 1, characterized in that: The large-arc slope (7) is arranged on the inner side of the connecting clamp ring (4), and the large-arc slope (7) is connected to the inner cavity wall of the flange head body (3).

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