A new variable diameter direct

Abstract

The utility model discloses a novel reducing direct belongs to pipeline connection technical field, including first arc piece, second arc piece and reducing sealing ring, first arc piece and second arc piece are symmetrically arranged, and reducing sealing ring is arranged between first arc piece and second arc piece, and the symmetrical both ends of first arc piece all have bolt piece bending outwards, and the symmetrical both ends of second arc piece all have nut piece bending outwards, and two nut pieces correspond with two bolt pieces respectively, in the utility model, first arc piece and second arc piece can stably wrap and fix reducing sealing ring, make reducing sealing ring stably seal at the connecting place of different diameter pipeline, guarantee the stability and sealing effect of connection, simultaneously, nylon expansion nail assembly can carry out secondary connection, make first arc piece and second arc piece and the connection of reducing sealing ring more stable, further improve the sealing property of reducing sealing ring at the connecting place of pipeline.

Description

Technical Field

[0001] This utility model relates to the field of pipe connection technology, and more specifically, to a novel variable diameter direct pipe. Background Technology

[0002] A reducing connector, also known as a reducing manifold or a reducing fitting, is a type of pipe fitting primarily used to achieve a straight transition connection between two pipes of different diameters. It is widely used in home renovations, municipal water supply, air conditioning systems, and chemical engineering.

[0003] Currently, existing reducing connectors are usually tightened using threads to connect pipes of different diameters. However, after long-term use, the threaded connection is prone to loosening, resulting in poor connection and low sealing performance. Therefore, this invention proposes a new type of reducing connector. Utility Model Content

[0004] 1. Technical problems to be solved In view of the problems existing in the prior art, the purpose of this utility model is to provide a new type of reducing connector, which aims to solve the problem that the existing reducing connector usually uses threads to tighten, so as to connect pipes of different diameters. However, after long-term use, the threaded connection is prone to loosening, resulting in poor connection effect and low sealing performance.

[0005] 2. Technical Solution To solve the above problems, the present invention adopts the following technical solution: A novel variable diameter straight connector includes a first arc-shaped plate, a second arc-shaped plate, and a variable diameter sealing ring. The first and second arc-shaped plates are symmetrically arranged. The variable diameter sealing ring is disposed between the first and second arc-shaped plates. Bolt plates are bent outward at both symmetrical ends of the first arc-shaped plate, and nut plates are bent outward at both symmetrical ends of the second arc-shaped plate, with each nut plate corresponding to one of the two bolt plates. Two nylon gaskets are fixedly connected to the circumferential surface of the variable diameter sealing ring, and the two nylon gaskets are symmetrically distributed between the two bolt plates and the two nut plates. A full hexagonal rivet nut assembly is riveted into the two nut plates. An internal hexagonal bolt assembly is slidably inserted into the two bolt plates, and the internal hexagonal bolt assembly is threaded through the bolt plates and nylon gaskets and connected to the full hexagonal rivet nut assembly. A nylon expansion bolt assembly is disposed between the two bolt plates and the two nylon gaskets.

[0006] As a preferred embodiment of this utility model, both nylon gaskets are made of PA+% fiberglass material.

[0007] As a preferred embodiment of this utility model, the variable diameter sealing ring is provided with a small diameter sealing protrusion and a large diameter sealing protrusion.

[0008] As a preferred embodiment of this utility model, the two nut pieces are provided with hexagonal openings, and the full hexagonal rivet nut assembly is fixedly connected within the hexagonal openings.

[0009] As a preferred embodiment of this utility model, a gasket assembly is fitted on the outer surface of the internal hexagonal bolt assembly, and the gasket assembly corresponds to the two bolt pieces.

[0010] 3. Beneficial Effects Compared with existing technologies, the advantages of this utility model are: (1) In this scheme, the first arc-shaped plate is set at the connection of pipes with different diameters and is wrapped by the first arc-shaped plate and the second arc-shaped plate. Through the threaded connection of the internal hexagonal bolt assembly and the full hexagonal rivet nut assembly, the two bolt plates and the two nut plates clamp the two nylon gaskets. The two nylon gaskets are made of PA+% fiberglass material, which can compensate for the clamping of the two bolt plates and the two nut plates, so that the first arc-shaped plate and the second arc-shaped plate can stably wrap and fix the variable diameter sealing ring, so that the variable diameter sealing ring can stably seal at the connection of pipes with different diameters, ensuring the stability of the connection and the sealing effect. At the same time, the nylon expansion nail assembly can be connected in a secondary manner, making the connection between the first arc-shaped plate and the second arc-shaped plate and the variable diameter sealing ring more stable, further improving the sealing performance of the variable diameter sealing ring at the pipe connection.

[0011] (2) In this scheme, the two nylon gaskets are made of PA+% wave fiber material, which has excellent yield strength and bending strength, and is inexpensive. It can reduce the wear of the two bolt pieces and two nut pieces, compensate for processing errors, ensure that the two bolt pieces and two nut pieces fit more tightly, and is resistant to aging, has a longer service life, is an environmentally friendly material, and is more lightweight.

[0012] (3) In this scheme, the full hexagonal rivet nut assembly is fixed on the second arc-shaped plate by stamping and riveting, which simplifies the installation efficiency, eliminates the need for tapping, and forms a tight mechanical engagement with the two nut plates after riveting. It is not easy for the threads to strip due to vibration or external force, and can maintain a good fastening effect with the internal hexagonal bolt assembly.

[0013] (4) In this solution, the nylon expansion nail assembly is driven into the space between the bolt piece and the nylon washer by pressing. It can be installed quickly without the need for mold opening or special tools. It is also lightweight and has a lower cost than traditional aluminum rivets. Even if it is disassembled later, it will not damage the surface of the two bolt pieces.

[0014] (5) In this scheme, the second arc-shaped plate can not only strengthen the fixation of the two inserted pipes through the small diameter sealing protrusion and the large diameter sealing protrusion, but also further improve the sealing performance and increase the limiting effect, making the positioning at the pipe interface more accurate. Attached Figure Description

[0015] Figure 1 This is the front view of the present invention; Figure 2 This is an exploded view of the present invention; Figure 3 This is a structural diagram of the first arc-shaped sheet in this utility model; Figure 4 This is a structural diagram of the second arc-shaped sheet in this utility model; Figure 5 This is a structural diagram of the variable diameter sealing ring in this utility model; Figure 6 In this utility model Figure 5 A sectional view.

[0016] Explanation of the labels in the diagram: 1. First arc-shaped plate; 11. Bolt plate; 2. Second arc-shaped plate; 21. Nut plate; 3. Variable diameter sealing ring; 31. Nylon gasket; 4. Full hexagonal rivet nut assembly; 5. Internal hexagonal bolt assembly; 6. Nylon expansion bolt assembly; 7. Small diameter sealing protrusion; 8. Large diameter sealing protrusion; 9. Hexagonal opening; 10. Gasket assembly. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.

[0018] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "top / bottom," etc., indicating the orientation or positional relationship are 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, and 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 therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0019] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "sleeved / connected," "connected," etc., should be interpreted broadly. For example, "connection" 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 an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0020] Example: Please see Figure 1-6 A novel variable diameter direct connector includes a first arc-shaped plate 1, a second arc-shaped plate 2, and a variable diameter sealing ring 3. The first arc-shaped plate 1 and the second arc-shaped plate 2 are symmetrically arranged. The variable diameter sealing ring 3 is disposed between the first arc-shaped plate 1 and the second arc-shaped plate 2. Bolt pieces 11 are bent outward at both symmetrical ends of the first arc-shaped plate 1, and nut pieces 21 are bent outward at both symmetrical ends of the second arc-shaped plate 2. The two nut pieces 21 correspond to the two bolt pieces 11 respectively. The circumference of the variable diameter sealing ring 3 is... Two nylon washers 31 are fixedly connected to the surface, and the two nylon washers 31 are symmetrically distributed between two bolt pieces 11 and two nut pieces 21. A full hexagonal rivet nut assembly 4 is riveted inside the two nut pieces 21. An internal hexagonal bolt assembly 5 is slidably inserted into the two bolt pieces 11, and the internal hexagonal bolt assembly 5 passes through the bolt pieces 11 and the nylon washers 31 and is threadedly connected to the full hexagonal rivet nut assembly 4. A nylon expansion bolt assembly 6 is provided between the two bolt pieces 11 and the two nylon washers 31.

[0021] In this embodiment, when connecting pipes of different diameters, the two ends of the pipes of different diameters are first inserted into the reducing sealing ring 3. Then, the reducing sealing ring 3 is wrapped with the first arc-shaped plate 1 and the second arc-shaped plate 2. The two bolt plates 11 and the nut plate 21 clamp the two nylon gaskets 31. Then, the gasket assembly 10 is threaded through the two bolt plates 11 and the two nylon gaskets 31 and screwed into the full hexagonal rivet nut assembly 4. The gasket assembly 10 and the full hexagonal rivet nut assembly 4 cooperate to make the two... A bolt piece 11 and two nut pieces 21 clamp and fix two nylon gaskets 31, thereby making the first arc-shaped piece 1 and the second arc-shaped piece 2 stably wrap the full hexagonal rivet nut assembly 4. Then, a nylon expansion nail assembly 6 is pressed and driven between the two bolt pieces 11 and the two nylon gaskets 31. The nylon expansion nail assembly 6 further improves the connection effect between the first arc-shaped piece 1, the second arc-shaped piece 2 and the variable diameter sealing ring 3, so that the full hexagonal rivet nut assembly 4 maintains a stable sealing connection at the pipe connection of different diameters.

[0022] Specifically, both nylon gaskets 31 are made of PA66 + 30% fiberglass.

[0023] In this embodiment, two nylon gaskets 31 made of PA66+30% corrugated fiber not only compensate for the clamping of the two bolt pieces 11 and the two bolt pieces 12, but also have better yield strength and bending strength, and are cheaper to manufacture.

[0024] Specifically, the variable diameter sealing ring 3 is provided with a small diameter sealing protrusion 7 and a large diameter sealing protrusion 8.

[0025] In this embodiment, when two pipes of different diameters are connected by inserting into the variable diameter sealing ring 3, the small diameter sealing protrusion 7 and the large diameter sealing protrusion 8 will respectively perform secondary sealing on the connection of the two pipes, further improving the sealing performance.

[0026] Specifically, the two nut pieces 21 have hexagonal openings 9, and the full hexagonal rivet nut assembly 4 is fixedly connected in the hexagonal openings 9.

[0027] In this embodiment, the hexagonal opening 9 facilitates the stamping and riveting of the full hexagonal rivet nut assembly 4 without the need for tapping, thus simplifying the installation efficiency of the full hexagonal rivet nut assembly 4.

[0028] Specifically, a washer assembly 10 is fitted on the outer surface of the internal hex bolt assembly 5, and the washer assembly 10 corresponds to the two bolt pieces 11.

[0029] In this embodiment, the gasket assembly 10 can increase the contact area between the head of the hex bolt assembly 5 and the two bolt pieces 11, disperse pressure, and reduce the risk of the hex bolt assembly 5 becoming loose.

[0030] Working principle: Two pipes of different diameters are inserted into the reducing seal ring 3 at both ends for connection. Then, the first arc-shaped plate 1 and the second arc-shaped plate 2 wrap around the reducing seal ring 3, and the two bolt plates 11 and the two nut plates 21 clamp the two nylon gaskets 31. Then, the hexagonal rivet nut assembly 4 is used to tighten the internal hexagonal bolt assembly 5 through the bolt plates 11 and the nylon gaskets 31, thereby locking the reducing seal ring 3 tightly with the first arc-shaped plate 1 and the second arc-shaped plate 2. Then, the nylon expansion bolt assembly 6 is driven between the bolt plates 11 and the nylon gaskets 31 to further improve the locking effect of the reducing seal ring 3, so that the reducing seal ring 3 can stably seal the connection between pipes of different diameters.

[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model based on the technical solution and its improved concept should be covered within the protection scope of the present utility model.

Claims

1. A novel variable diameter direct connector, comprising a first arc-shaped sheet (1), a second arc-shaped sheet (2), and a variable diameter sealing ring (3), characterized in that: The first arc-shaped plate (1) and the second arc-shaped plate (2) are symmetrically arranged. The variable diameter sealing ring (3) is located between the first arc-shaped plate (1) and the second arc-shaped plate (2). Bolt pieces (11) are bent outward at both ends of the first arc-shaped plate (1), and nut pieces (21) are bent outward at both ends of the second arc-shaped plate (2). The two nut pieces (21) correspond to the two bolt pieces (11) respectively. Two nylon gaskets (31) are fixedly connected to the circumferential surface of the variable diameter sealing ring (3). Two nylon washers (31) are symmetrically distributed between two bolt pieces (11) and two nut pieces (21). A full hexagonal rivet nut assembly (4) is riveted inside the two nut pieces (21). An internal hexagonal bolt assembly (5) is slidably inserted into the two bolt pieces (11), and the internal hexagonal bolt assembly (5) is threaded through the bolt pieces (11) and the nylon washers (31) and connected to the full hexagonal rivet nut assembly (4). A nylon expansion bolt assembly (6) is provided between the two bolt pieces (11) and the two nylon washers (31).

2. The novel variable diameter straight pipe according to claim 1, characterized in that: Both of the nylon gaskets (31) are made of PA66+30% fiberglass.

3. A novel variable diameter straight pipe according to claim 2, characterized in that: The variable diameter sealing ring (3) is provided with a small diameter sealing protrusion (7) and a large diameter sealing protrusion (8).

4. A novel variable diameter straight pipe according to claim 3, characterized in that: The two nut pieces (21) have hexagonal openings (9), and the full hexagonal rivet nut assembly (4) is fixedly connected to the hexagonal openings (9).

5. A novel variable diameter straight pipe according to claim 4, characterized in that: The outer surface of the internal hex bolt assembly (5) is fitted with a gasket assembly (10), and the gasket assembly (10) corresponds to the two bolt pieces (11).

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