Reinforced glue injection quick connector

Abstract

The utility model relates to a joint, in particular to a reinforcing glue injection quick joint, which solves the problem of maintenance of a line in a low-temperature explosion-proof scene. Comprising a shell and an inner pipe, the shell is of an axial symmetry structure, the shell is sequentially provided with a connecting part and a narrow pipe part which are fixedly assembled from the middle to the two ends, the diameter of the narrow pipe part is gradually reduced from the end close to the connecting part to the other end, a cavity is formed in the shell, and the diameter of the cavity at the position corresponding to the narrow pipe part is synchronously reduced. An opening is formed in the position, at the axial end of the narrow pipe part, of the cavity body, a notch is further formed in the outer edge of the end of the narrow pipe part, a glue injection hole and an exhaust hole are further formed in the connecting part, and the inner pipe is provided with a flaring end and an extending part. By adopting the matched design of split clamping and glue injection, positioning and fixing are facilitated, the connection sealing performance is improved, the external protection and the pulling resistance can be enhanced, the long service life is prolonged, and the influence of complex factors of use scenes is avoided.

Description

Technical Field

[0001] This utility model relates to a connector, and more particularly to a reinforcing glue-injection quick-connect connector. Background Technology

[0002] In natural gas stations, electrical wiring has higher standards and requirements, especially during maintenance, where attention must be paid to the appearance, circuitry, and protection of the wiring. Important wiring is typically encased in conduit or specialized electrical sleeves before being bundled into electrical boxes. However, wiring requiring external inspection is often laid out through conduits. A significant number of wires are exposed at equipment and enclosure interfaces. Due to the special operating environment, such as low temperatures, rain, direct sunlight, humidity, vibration, and pulling, these wires can become partially damaged and unusable. In emergency situations, electrical tape is often used for simple binding. However, this is ineffective when the damaged or missing length of wiring is substantial, posing significant safety hazards and sometimes rendering the wiring irreparable. Furthermore, due to the explosion-proof design, replacement operations are complex and cumbersome, requiring specialized certified personnel. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a reinforcing glue injection quick-connect joint.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a reinforcing glue injection quick connector, comprising a shell and an inner tube. The shell has an axisymmetric structure, and the shell has a fixedly assembled connecting part and a narrow tube part from the middle to both ends. The diameter of the narrow tube part gradually decreases from one end near the connecting part to the other end. The shell has a hollow cavity, and the diameter of the hollow cavity narrows synchronously at the corresponding position of the narrow tube part. The hollow cavity has an opening at the axial end of the narrow tube part, and the narrow tube part also has a notch at the outer edge of the end. The connecting part is provided with a glue injection hole and a vent hole. The inner tube has a flared end and an extension part. The flared end has a frustum-shaped structure, and the inner tube has a through-hole along the axis.

[0005] The connecting part and the narrow tube part are fixed by a threaded connection.

[0006] The diameter of the injection hole is larger than the diameter of the vent hole.

[0007] The outer surface of the flared end is provided with ribs corresponding to the notch, and the flared end is in contact with the inner wall of the narrow tube.

[0008] The surface of the extension is provided with a number of balance holes that communicate with the inner cavity, and the balance holes are evenly spaced.

[0009] The inner wall of the narrow tube is provided with several reinforcing grooves, and the inner wall of the reinforcing grooves is an arc surface.

[0010] The beneficial effects of this utility model are as follows: The reinforcing quick-connect joint provided by this utility model adopts a combination design of split clamping and glue injection, which is conducive to positioning and fixing and improving connection sealing. It can also enhance external protection and tensile strength, improve service life, and avoid the influence of complex factors in the usage scenario. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the shell structure of this utility model;

[0012] Figure 2 This is a schematic diagram of the inner tube structure of this utility model;

[0013] Figure 3 This is a schematic diagram of a partial structure of the inner wall of the narrow tube section of this utility model. Detailed Implementation

[0014] like Figures 1-3 As shown, a reinforcing quick-connect fitting includes a housing 1 and an inner tube 2. The housing 1 has an axisymmetric structure and, from the middle to both ends, has a connecting portion 3 for fixed assembly and a narrow tube portion 4. The wire is inserted into the narrow tube portion 4, and after being wrapped and bound, it is installed inside the connecting portion 3. Finally, glue is applied to improve the sealing and connection of the wire, and also enhances the protection. It should be noted that the length of the narrow tube portion 4 can significantly exceed the length of the connecting portion 3, thus accommodating common exposed wire lengths. Therefore, in production and use, the housing 1 has two commonly used specifications: one is a length that almost completely covers the exposed wire, and the other is a length for simple repair quick-connect fittings. The diameter of the narrow tube section 4 gradually decreases from one end near the connecting part 3 to the other. The housing 1 contains a cavity, the diameter of which narrows synchronously at the corresponding position of the narrow tube section 4. The cavity has an opening at the axial end of the narrow tube section 4, and a notch 5 is also provided on the outer edge of the end of the narrow tube section 4. The connecting part 3 has an injection hole 6 and a vent hole 7. The inner tube 2 has a flared end 8 and an extension 9. The flared end 8 has a frustum-shaped structure, and the inner tube 2 has a through-hole along its axis. The notch 5 design enhances local elasticity, and the opening diameter of the narrow tube section 4 is initially small, widened by the inner tube 2. In addition to its widening function, the inner tube 2 also provides a temporary seal to prevent excessive glue overflow. The vent hole 7 ensures smooth glue entry, and its extremely small size prevents significant glue overflow.

[0015] The connecting part 3 and the narrow tube part 4 are fixed by a threaded connection. This facilitates sealing after the circuit connection is completed and also helps to ensure the relative airtightness of the glue injection. The diameter of the glue injection hole 6 is larger than the diameter of the vent hole 7. Generally, the diameter of the glue injection hole 6 should be smaller than the size of a water droplet, while the diameter of the vent hole 7 is about 1 mm.

[0016] The outer surface of the flared end 8 is provided with ribs 10 corresponding to the notch 5, and the flared end 8 fits against the inner wall of the narrow tube section 4. The ribs 10 fill the position of the notch 5, which is beneficial for positioning and opening the narrow tube section 4, and also has a certain sealing effect to prevent excessive overflow of the injected adhesive. The surface of the extension section 9 is provided with several balance holes 11 that connect to the inner cavity, and the balance holes 11 are evenly spaced. The balance hole 11 design can evenly inject adhesive, which is beneficial to the structural stability and balance. The inner wall of the narrow tube section 4 is provided with several reinforcing grooves 12. The inner wall of the reinforcing grooves 12 is an arc surface, so that some of the overflowed adhesive solidifies at this point and forms a connection point between the adhesive and the narrow tube section 4, which not only hinders axial movement, but also provides separation resistance for the solidified connection.

[0017] In use, the inner tube 2 can be omitted; after inserting the wires and connecting them, the outer shell 1 can be installed to complete the seal. Alternatively, electrical tape can be used to temporarily bind the insulation before installing the outer shell 1 for sealing. Or, if the narrow tube section 4 is tightly connected, the inner tube 2 can be omitted and the insulation sealed with adhesive. A longer narrow tube section 4 can be used to cover large exposed areas of wiring, while a shorter narrow tube section 4 can be used to reconnect disconnected wiring. Sealing can also be enhanced using only the inner tube 2 in conjunction with the narrow tube section 4 without adhesive. The above usage methods depend on actual needs and are not limited to these; this is merely a simple list of emergency procedures.

[0018] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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. Therefore, they should not be construed as limitations on this utility model. At the same time, the basic principles, main features, and advantages of this utility model have been shown and described above, which should be understood by those skilled in the art.

Claims

1. A reinforced glue-in quick coupling joint, characterized in that, The utility model relates to a kind of shell and inner tube, the shell is axisymmetric structure, the shell is sequentially provided with fixedly assembled connecting portion and narrow tube portion from middle to both ends, the diameter of the narrow tube portion gradually reduces from the one end close to connecting portion to the other end, the cavity cavity is provided in the shell, the diameter of the cavity cavity is narrowed simultaneously in the position corresponding to narrow tube portion, the cavity cavity is provided with opening in the axial end of narrow tube portion, the outer edge of the narrow tube portion is also provided with gap, the connecting portion is further provided with glue injection hole and exhaust hole, the inner tube has flared end and extension, the flared end is circular truncated cone structure, the inner tube is provided with through inner cavity along axis.

2. A reinforced glue-in quick coupling joint as claimed in claim 1, characterized in that The connecting portion is fixedly connected with the narrow tube portion by screw thread.

3. A reinforced glue-in quick coupling according to claim 1 or 2, characterized in that The diameter of the glue injection hole is larger than the diameter of the exhaust hole.

4. A reinforced glue-in quick coupling according to claim 3, wherein The outer surface of the flared end is provided with rib corresponding to the gap, and the flared end is attached to the inner wall of the narrow tube portion.

5. A reinforced glue-in quick coupling joint as claimed in claim 4, wherein, The surface of the extension is provided with a plurality of balance holes communicating with the inner cavity, and the balance holes are uniformly arranged.

6. A reinforced glue-in quick coupling joint as claimed in claim 5, characterized in that The inner wall of the reinforcing groove is arc surface.

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