Leakage-proof plastic flange easy to install

Abstract

The utility model discloses an easy-to-install anti-leakage plastic flange which comprises a main body assembly, a first embedded groove and a second embedded groove. The first sealing assembly comprises a first sealing ring, a first groove, a second groove, a first spring, a second sealing ring, a first boss and a second boss; the first sealing ring is connected into the second embedded groove through a countersunk screw, the first groove is formed in the middle of the first sealing ring, the second groove is formed in the middle of the first groove, one end of the first spring is connected into the second groove through a screw, and the second sealing ring is movably connected to the lower surface of the first sealing ring. The problems that according to an existing plastic flange, bolt connection is rapid and convenient, a sealing ring is arranged at the flange connecting position and used for preventing leakage at the connecting position, but due to the characteristics of the sealing ring, stress deformation can occur after long-term use, the sealing performance of the connecting position is reduced, and the leakage phenomenon occurs are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of plastic flanges, in particular to an easy-to-install leakage-proof plastic flange. Background Art

[0002] Plastic flange is a plastic pipe joint used to connect pipes, which is widely used in chemical, electric power, environmental protection and other industries. Plastic flange is an important component used to connect pipes in the industrial field. It is usually made of plastic materials such as PVC, PE, PP, ABS, etc. These materials have the characteristics of corrosion resistance, light weight and easy installation. The structural design of plastic flange enables it to effectively connect pipes and provide good sealing performance at the connection to prevent medium leakage.

[0003] However, it still has the following disadvantages in actual use:

[0004] Existing plastic flanges are connected by bolts, which is quick and convenient. A sealing ring is provided at the flange connection to prevent leakage at the connection. However, due to the characteristics of the sealing ring itself, stress deformation will occur after long-term use, resulting in reduced sealing of the connection and leakage. Utility Model Content

[0005] The purpose of the utility model is to provide an easy-to-install anti-leakage plastic flange to solve the problem raised in the above background technology that the existing plastic flanges are connected by bolts, which is quick and convenient, and a sealing ring is provided at the flange connection to prevent leakage at the connection. However, due to the characteristics of the sealing ring itself, stress deformation will occur after long-term use, resulting in reduced sealing of the connection and leakage.

[0006] In order to solve the above technical problems, the utility model is achieved through the following technical solutions:

[0007] The utility model is an easy-to-install anti-leakage plastic flange, comprising:

[0008] A main body component, the main body component comprising a flange and a second embedded groove;

[0009] The second embedded groove is provided in the middle of the lower surface of the flange;

[0010] A first sealing assembly, the first sealing assembly comprising a first sealing ring, a first groove, a second groove, a first spring, a second sealing ring, a first boss and a second boss;

[0011] The first sealing ring is connected to the second embedded groove by a countersunk screw, the first groove is opened in the middle of the first sealing ring, the second groove is opened in the middle of the first groove, one end of the first spring is connected to the inside of the second groove by a screw, the second sealing ring is movably connected to the lower surface of the first sealing ring, the first boss is injection-molded connected to the middle of the upper surface of the second sealing ring, and the second boss is injection-molded connected to the middle of the upper surface of the first boss.

[0012] Furthermore, the other end of the first spring is connected to the upper surface of the second boss by a screw, and the second boss is movably connected in the second groove.

[0013] Furthermore, the main body assembly also includes a connecting pipe, a mounting hole and a first reinforcing rib;

[0014] The connecting pipe is injection-molded and connected to the middle of the upper surface of the flange, the mounting holes are opened on the flange and are symmetrically distributed in a ring shape, and the first reinforcing ribs are injection-molded and connected to the upper surface of the flange and the side of the connecting pipe.

[0015] Furthermore, the main body assembly further includes a first embedded groove and a second reinforcing rib;

[0016] The first embedded groove is arranged on the lower surface of the flange, and the second reinforcing ribs are injection-molded and connected in the first embedded groove and are symmetrically distributed in a ring shape.

[0017] Further, it also includes a second sealing assembly;

[0018] The second sealing assembly includes a card slot, a first card block and a fixing frame;

[0019] The clamping slot is injection-molded and connected to the upper end of the flange side, the first clamping block is clamped in the clamping slot, and the fixing frame is injection-molded and connected to the side of the first clamping block;

[0020] There are two groups of the first clamping blocks, which are located in the middle of the upper and lower sides of the fixing frame.

[0021] Furthermore, the second sealing assembly also includes a second spring, an arc-shaped sealing strip and a second clamping block;

[0022] One end of the second spring is connected to the inside of the fixing frame by screws, the arc-shaped sealing strip is connected to the other end of the second spring by screws, and the second clamping block is injection-moldedly connected to both ends of the arc-shaped sealing strip;

[0023] The second clamping blocks at both ends of the arc-shaped sealing strip are staggered and fitted with the second clamping blocks at both ends of another group of arc-shaped sealing strips.

[0024] Compared with the prior art, the advantages of the present invention are:

[0025] 1. The utility model, through the provision of a first sealing assembly, connects the first sealing ring to the second embedded groove with screws, and connects the second sealing ring with a first spring. Through the cooperation of the first groove, the second groove, the first boss and the second boss, the sealing effect is better. When connected with another set of flanges, the two sets of second sealing rings are tightly attached. After a period of use, the first spring pushes the second boss, driving the first boss and the second sealing ring to remain tightly connected together, ensuring that the sealing effect will not be deteriorated due to stress deformation.

[0026] 2. The utility model provides a second sealing component. When installing two groups of flanges, first insert the first clamping block on one side of the fixing frame into the clamping groove, so that the fixing frame and the arc-shaped sealing strip are wrapped around the outside of one group of flanges. When the other group of flanges is docked with the previous group of flanges, the clamping groove on the latter group of flanges is engaged with the first clamping block on the other side of the fixing frame. After the connection is completed, under the action of the second spring, the second clamping blocks at both ends of the arc-shaped sealing strip are engaged together, so that the arc-shaped sealing strip is attached to the connection between the two groups of flanges, which can improve the external sealing of the flanges. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for describing the embodiments are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0028] Figure 1 It is a schematic diagram of the overall structure of the utility model from a first perspective;

[0029] Figure 2 It is a schematic diagram of the overall structure of the utility model from a second viewing angle;

[0030] Figure 3 This is a bottom view of the main assembly of the utility model;

[0031] Figure 4 This is a schematic diagram of the first sealing component structure of the utility model from a first viewing angle;

[0032] Figure 5 This is a schematic diagram of the first sealing assembly structure of the utility model from a second viewing angle;

[0033] Figure 6 It is a partial structural schematic diagram of the second sealing component of the utility model.

[0034] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0035] 10. Flange; 11. Connecting pipe; 12. Mounting hole; 13. First reinforcing rib; 14. First embedded groove; 15. Second reinforcing rib; 16. Second embedded groove; 20. First sealing ring; 21. First groove; 22. Second groove; 23. First spring; 24. Second sealing ring; 25. First boss; 26. Second boss; 30. Slot; 31. First block; 32. Fixing frame; 33. Second spring; 34. Arc sealing strip; 35. Second block. DETAILED DESCRIPTION

[0036] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0037] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0038] In order to make the purpose, technical solution and advantages of the present invention more clear, the implementation mode of the present invention will be further described in detail below with reference to the accompanying drawings.

[0039] See also Figure 1-5 As shown, this embodiment is an easy-to-install anti-leakage plastic flange, comprising:

[0040] A main body component, the main body component includes a flange 10 and a second embedded groove 16;

[0041] The second embedded groove 16 is provided in the middle of the lower surface of the flange 10;

[0042] The flange 10 is used to connect the pipeline, and the second embedded groove 16 is used to install the first sealing ring 20;

[0043] A first sealing assembly, the first sealing assembly includes a first sealing ring 20, a first groove 21, a second groove 22, a first spring 23, a second sealing ring 24, a first boss 25 and a second boss 26;

[0044] The first sealing ring 20 is connected to the second embedded groove 16 by countersunk screws, the first groove 21 is opened in the middle of the first sealing ring 20, the second groove 22 is opened in the middle of the first groove 21, one end of the first spring 23 is connected to the inside of the second groove 22 by screws, the second sealing ring 24 is movably connected to the lower surface of the first sealing ring 20, the first boss 25 is injection-molded and connected to the middle of the upper surface of the second sealing ring 24, and the second boss 26 is injection-molded and connected to the middle of the upper surface of the first boss 25;

[0045] The first sealing ring 20 and the second sealing ring 24 play a sealing role, the first groove 21 and the first boss 25 are in contact with each other, and the second groove 22 and the second boss 26 are in contact with each other, so that the sealing effect is better, and the first spring 23 has an extrusion function;

[0046] The other end of the first spring 23 is connected to the upper surface of the second boss 26 by a screw, and the second boss 26 is movably connected in the second groove 22;

[0047] The main body assembly also includes a connecting pipe 11, a mounting hole 12 and a first reinforcing rib 13;

[0048] The connecting pipe 11 is injection-molded and connected to the middle of the upper surface of the flange 10. The mounting holes 12 are opened on the flange 10 and are symmetrically distributed in a ring shape. The first reinforcing rib 13 is injection-molded and connected to the upper surface of the flange 10 and the side of the connecting pipe 11.

[0049] The connecting pipe 11 is used to connect the conveying medium, the mounting hole 12 cooperates with the bolts to connect the two sets of flanges 10, and the first reinforcing rib 13 can increase the strength of the flange 10 to prevent deformation;

[0050] The main body assembly also includes a first embedded groove 14 and a second reinforcing rib 15;

[0051] The first embedded groove 14 is provided on the lower surface of the flange 10, and the second reinforcing ribs 15 are injection-molded and connected in the first embedded groove 14 and are symmetrically distributed in a ring shape;

[0052] The first embedded groove 14 can save materials and reduce the weight of the flange 10 . The second reinforcing ribs 15 can increase the strength of the flange 10 so that the flange 10 will not be deformed due to the first embedded groove 14 .

[0053] Working principle:

[0054] The first sealing ring 20 is screwed into the second embedded groove 16, and the first spring 23 is screwed into the second groove 22, and then the second boss 26 is connected to the other end of the first spring 23;

[0055] Butt the two sets of flanges 10 together, align the mounting holes 12, pass the bolts through the mounting holes 12 and tighten them;

[0056] At this time, the second sealing rings 24 between the two sets of flanges 10 are fitted together under the action of the first spring 23. As time goes by, the first spring 23 always pushes the second sealing ring 24 forward.

[0057] This step can improve the sealing performance in the middle of the flange 10.

[0058] See also Figure 3 , Figure 6 As shown, this embodiment is based on the above embodiment 1 and also includes:

[0059] A second sealing assembly, the second sealing assembly includes a card slot 30, a first card block 31 and a fixing frame 32;

[0060] The slot 30 is injection-molded and connected to the upper end of the side of the flange 10, the first clamping block 31 is clamped in the slot 30, and the fixing frame 32 is injection-molded and connected to the side of the first clamping block 31;

[0061] There are two groups of first clamping blocks 31, which are located in the middle of the upper and lower sides of the fixing frame 32;

[0062] The card slot 30 and the first card block 31 cooperate to play a connecting role, and the fixing frame 32 plays a supporting role;

[0063] The second sealing assembly also includes a second spring 33, an arc-shaped sealing strip 34 and a second clamping block 35;

[0064] One end of the second spring 33 is connected to the inside of the fixing frame 32 by screws, the arcuate sealing strip 34 is connected to the other end of the second spring 33 by screws, and the second clamping block 35 is injection-molded and connected to both ends of the arcuate sealing strip 34;

[0065] The second clamping blocks 35 at both ends of the arc-shaped sealing strip 34 are staggered and fitted with the second clamping blocks 35 at both ends of another set of arc-shaped sealing strips 34;

[0066] The second spring 33 has a squeezing function, and the arc-shaped sealing strip 34 and the second clamping block 35 play a sealing role.

[0067] Working principle:

[0068] Insert the first clamping block 31 on one side of the fixing frame 32 into the clamping groove 30, so that the fixing frame 32 and the arc-shaped sealing strip 34 are wrapped around the outside of a group of flanges 10, and dock the other group of flanges 10 with the previous group of flanges 10. At the same time, the clamping groove 30 on the latter group of flanges 10 is engaged with the first clamping block 31 on the other side of the fixing frame 32. After the connection is completed, under the action of the second spring 33, the second clamping blocks 35 at both ends of the arc-shaped sealing strip 34 are engaged together, so that the arc-shaped sealing strip 34 fits the connection between the two groups of flanges 10.

[0069] This step can improve the sealing performance of the outer connection of the flange 10.

[0070] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0071] Finally, it should be noted that the above description is only a preferred embodiment of the utility model and is not intended to limit the utility model. Although the utility model is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions recorded in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model shall be included in the protection scope of the utility model.

Claims

1. An easy-to-install anti-leakage plastic flange, characterized in that: include: A main body component, the main body component comprising a flange (10) and a second embedded groove (16); The second embedded groove (16) is provided in the middle of the lower surface of the flange (10); A first sealing assembly, the first sealing assembly comprising a first sealing ring (20), a first groove (21), a second groove (22), a first spring (23), a second sealing ring (24), a first boss (25) and a second boss (26); The first sealing ring (20) is connected to the second embedded groove (16) by means of countersunk screws, the first groove (21) is opened in the middle of the first sealing ring (20), the second groove (22) is opened in the middle of the first groove (21), one end of the first spring (23) is connected to the inside of the second groove (22) by means of screws, the second sealing ring (24) is movably connected to the lower surface of the first sealing ring (20), the first boss (25) is injection-moldedly connected to the middle of the upper surface of the second sealing ring (24), and the second boss (26) is injection-moldedly connected to the middle of the upper surface of the first boss (25).

2. The easy-to-install anti-leakage plastic flange according to claim 1, characterized in that: The other end of the first spring (23) is connected to the upper surface of the second boss (26) via a screw, and the second boss (26) is movably connected in the second groove (22).

3. The easy-to-install anti-leakage plastic flange according to claim 1, characterized in that: The main body assembly further comprises a connecting pipe (11), a mounting hole (12) and a first reinforcing rib (13); The connecting pipe (11) is injection-molded and connected to the middle of the upper surface of the flange (10); the mounting holes (12) are opened on the flange (10) and are distributed symmetrically in a ring shape; and the first reinforcing rib (13) is injection-molded and connected to the upper surface of the flange (10) and the side of the connecting pipe (11).

4. The easy-to-install anti-leakage plastic flange according to claim 1, characterized in that: The main body component further comprises a first embedded groove (14) and a second reinforcing rib (15); The first embedded groove (14) is provided on the lower surface of the flange (10), and the second reinforcing ribs (15) are injection-molded and connected to the first embedded groove (14) and are symmetrically distributed in a ring shape.

5. The easy-to-install anti-leakage plastic flange according to claim 1, characterized in that: Also included is a second sealing assembly; The second sealing assembly comprises a clamping groove (30), a first clamping block (31) and a fixing frame (32); The clamping groove (30) is injection-moldedly connected to the upper end of the side of the flange (10), the first clamping block (31) is clamped in the clamping groove (30), and the fixing frame (32) is injection-moldedly connected to the side of the first clamping block (31); There are two groups of first clamping blocks (31), which are located in the middle of the upper and lower sides of the fixing frame (32).

6. The easy-to-install anti-leakage plastic flange according to claim 5, characterized in that: The second sealing assembly also includes a second spring (33), an arc-shaped sealing strip (34) and a second clamping block (35); One end of the second spring (33) is connected to the inside of the fixing frame (32) by means of screws, the arc-shaped sealing strip (34) is connected to the other end of the second spring (33) by means of screws, and the second clamping block (35) is injection-moldedly connected to both ends of the arc-shaped sealing strip (34); The second clamping blocks (35) at both ends of the arc-shaped sealing strip (34) are staggered and fitted with the second clamping blocks (35) at both ends of another group of arc-shaped sealing strips (34).

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