CN217062613U - T-shaped joint - Google Patents

Abstract

The utility model discloses a T type connects, including the nipple, the nipple includes cortex, insulating layer, internal shield layer, cortex, insulating layer are T type structure, the insulating layer is located between cortex and the internal shield layer, still include the protective housing, the protective housing is the cavity structure of T type, the protective housing seamless structure as an organic whole, the nipple built-in with in the cavity of protective housing, be equipped with the injecting glue mouth on the protective housing, the cortex is including advancing gluey mouthful, the injecting glue mouth is relative with the position of advancing gluey mouth, advance gluey mouthful with the insulating layer intercommunication. The utility model discloses an adopt the protective housing of integrative seamless structure, then set up an injecting glue mouth in the protective housing again to make the insulating layer of nipple reform after putting into the protective housing, thereby improved the reliability of being connected between nipple and the protective housing, improved the life and the product stability that take the T type of protective housing to connect.

Description

T-shaped joint

Technical Field

The utility model relates to a power cable annex technical field, especially T type connect.

Background

With the rapid development of urban power cable line construction, in engineering installation, in order to reduce the engineering cost, a cable is often used as a power supply of a plurality of distribution points. For this reason, a T-shaped branch joint for branching a power cable is commonly used in the prior art, and the T-shaped branch joint is mainly composed of a T-shaped outer skin and an inner shielding layer made of conductive silica gel, and then a T-shaped insulating layer is provided between the outer skin and the inner shielding layer. When the connector is used, the elbow-shaped head, the terminal, the stress cone, the insulating sleeve, the plug-in terminal, the locking ring and the like are matched to realize the electric conduction function. In order to protect the T-shaped joint better, a metal shell is wrapped outside the traditional T-shaped joint in the prior art, but due to the shape limitation of the T-shaped joint, the metal shell basically adopts a split type installation structure, and the metal shell is not very attached to the rubber part inside. In some use environments, including vibration, the service life of the T-joint and product stability may be affected.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: it is an object of the present invention to provide a T-joint that solves one or more of the problems of the prior art, and at least provides a useful alternative or creation.

The utility model provides a solution of its technical problem is: the utility model provides a T type connects, includes the nipple, the nipple includes cortex, insulating layer, internal shield layer, cortex, insulating layer are T type structure, the insulating layer is located between cortex and the internal shield layer, still includes the protective housing, the protective housing is the cavity structure of T type, the protective housing seamless structure as an organic whole, the nipple built-in with in the cavity of protective housing, be equipped with the injecting glue mouth on the protective housing, the cortex is including advancing gluey mouth, the injecting glue mouth is relative with the position of advancing gluey mouth, advance gluey mouth with the insulating layer intercommunication.

The utility model has the advantages that: the utility model discloses an adopt the protective housing of integrative seamless structure, then set up an injecting glue mouth in the protective housing again to make the insulating layer of nipple reform after putting into the protective housing, thereby improved the reliability of being connected between nipple and the protective housing, improved the life and the product stability that take the T type of protective housing to connect.

As a further improvement of the above technical scheme, the protective housing includes horizontal section and vertical section, the both sides of vertical section are equipped with logical groove, the cortex includes the earthing lug, the earthing lug is followed it stretches out to lead to the groove. The ground lug of cortex can stretch out in the protective housing outward, not only can play the effect of location, can save the protective housing moreover and do a ground structure again.

As a further improvement of the technical scheme, the transverse section is positioned above the vertical section, and an external thread is arranged below the vertical section. The external thread is additionally arranged below the vertical section, so that external structures are conveniently added on the protective shell.

As a further improvement of the technical scheme, the glue injection port is positioned in the middle of the transverse section. Through optimizing the position of injecting glue mouth, can be so that the insulating layer in the shaping, more even, the quality is better.

As a further improvement of the above technical solution, the glue inlet is higher than the outer surface of the protective shell. The glue inlet is slightly higher than the outer surface of the protective shell, so that flowing glue can better enter the inner joint when glue is injected, and the glue is prevented from overflowing outside the protective shell.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic perspective view of a T-joint of the present invention;

fig. 2 is a cross-sectional view of the T-joint of the present invention;

fig. 3 is an exploded view of the T-joint of the present invention.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. The preferred embodiment of the present invention is shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

In the description of the present invention, it should be understood that the directional descriptions, such as the directions or positional relationships indicated by upper, lower, front, rear, left, right, etc., are based on the directions or positional relationships shown in the drawings, and are only for convenience of description and simplification of the description, but not for indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution. Meanwhile, all technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

T-shaped joints as

Referring to fig. 1 to 3, a T-joint includes an inner joint 100, wherein the inner joint 100 includes an outer skin layer 110, an insulating layer 120 and an inner shielding layer 130 from outside to inside. Wherein cortex 110, insulating layer 120 be T shape structure, promptly cortex 110 and insulating layer 120 all include three through-hole, wherein two through-holes are the front and back and link up the form, and the third through-hole extends along vertical direction to link up each other with the through-hole of two other. The outer skin 110 and the insulation layer 120 are similar to a conventional tee joint. Meanwhile, the outer skin layer 110 covers the outer circumference of the insulating layer 120, and the outer skin layer 110 almost completely covers the outer surface of the insulating layer 120. The whole inner shielding layer 130 is in an 'I' -shape, the inner shielding layer 130 is located in a vertical opening of the insulating layer 120, a circular ring portion 131 is arranged at the top of the inner shielding layer 130, a circular hole is formed in the circular ring portion 130, and the front opening and the rear opening of the insulating layer 120 can be communicated with the circular hole. Meanwhile, there is no contact between the outer skin layer 110 and the inner shield layer 130, and the two layers are separated by the insulating layer 120.

In this embodiment, the outer skin layer 110 and the inner shield layer 130 are made of conductive silicone material, and the outer skin layer 110 has better flexibility and can be easily bent and deformed. The insulating layer 120 is made of an insulating rubber material, and has high hardness and poor plasticity, and after the inner joint 100 is molded, the insulating layer 120 plays roles of shaping, supporting, fixing, mounting and the like, and the outer skin layer 110 and the inner shielding layer 120 are both attached to the insulating layer 120.

Meanwhile, the present embodiment further includes a complete and separate protective case 200 having a T-shaped structure, the protective case 200 has substantially the same shape as the outer skin layer 110, and includes three through holes, two of the through holes are through-shaped, and the third through hole extends along a vertical direction. The three through openings of the protective shell 200 enclose a cavity in which the nipple 100 can be received. Simultaneously, the surface of protective housing 200 is equipped with a injecting glue mouth 210, and is corresponding be equipped with into jiao kou 111 on the cortex 110, advance jiao kou 111 with insulating layer 120 intercommunication.

In order to protect the protective casing 200, the protective casing 200 is made of a metal material, and in particular, in this embodiment, the protective casing 200 is an aluminum alloy casting. When the protective shell 200 is produced, the protective shell 200 with the whole T-shaped structure can be processed and molded in a die casting mode at one time.

After the T-shaped joint is molded, the nipple 100 is built into the protective case 200. However, since the insulating layer 120 is made of hard rubber, the nipple cannot be plugged into the integrally formed protective shell in the conventional T-shaped joint, and therefore, the conventional protective shell is a structure formed by half-and-half assembling, wrapping the two half shells around the nipple, and then assembling and fixing the two half shells by screws.

In the T-joint, the inner joint is formed separately so that the inner joint 100 can be well fitted into the protective shell 200. The specific forming method is as follows:

first, the outer skin layer 110 and the inner shield layer 130 of the inner joint are separately cast-molded, and the protective shell 200 is also separately cast-molded. The protective housing 200 after molding includes a glue injection port 210, and the outer skin layer 110 is provided with a glue inlet 111 communicating with the inner cavity.

Then, inserting the outer skin layer 110 into the cavity of the protective shell 200, so that the outer surface of the outer skin layer 110 can be attached to the inner wall of the protective shell 200, and the glue inlet 111 is aligned to the glue injection port 210;

then, the inner shielding layer 130 is placed in the outer skin layer 110, and the inner shielding layer 130 is relatively fixed in the outer skin layer 110 through a peripheral model structure;

furthermore, cores are fixed on the front side and the rear side of the outer skin layer 110, and at this time, a "T" -shaped cavity is formed between the outer skin layer 110, the inner shielding layer 130 and the cores, and the cavity is a product cavity of the insulating layer 120;

then, the rubber material in a molten state is poured into the rubber injection port 210, and the cavity is filled with the rubber in the molten state;

finally, after the rubber is cured, the insulating layer 120 can be formed.

Since the injection pressure of the insulating layer 120 during the casting process can cause the rubber in the molten state to have an outward pressure to the outer skin layer 110, the pressure can cause the outer skin layer 110 to tightly adhere to the inner wall of the protective shell 200. After the insulating layer 120 is cured, the entire nipple 100 can be mounted well in the protective shell 200 with little clearance between the nipple 100 and the protective shell 200 by means of the hard insulating layer 120. When the T-shaped joint is used, even if vibration occurs, the protective shell 200 cannot be loosened, and the service life of the T-shaped joint is prolonged.

Further as a preferred embodiment, the protective shell 200 includes a horizontal section 220 extending in a front-back direction and a vertical section 230 extending in a top-bottom direction, the horizontal section 220 is located at the top of the vertical section 230, the horizontal section 220 and the vertical section 230 are integrally formed in a circular tube shape, and the horizontal section 220 and the vertical section 230 are integrally formed.

A through groove 240 is formed at both front and rear sides of the vertical section 230, and two grounding lugs 112 are formed at a lower portion of the skin layer 110, the grounding lugs 112 extending outward from the through grooves 240. Since the outer skin layer 110 has better flexibility, in the above molding method, after the outer skin layer 110 is inserted into the protective shell 200, the outer skin layer 110 is restored to the stretched state, the outer surface of the outer skin layer 110 is well attached to the inner surface of the protective shell 200, and then the two grounding lugs 112 just can protrude from the two through grooves 240 of the protective shell 200. The root of the two grounding lugs 112 can abut against the notch of the through groove 240, so that not only can a positioning function be provided for the outer skin layer 110, but also the grounding lugs 112 play a role in grounding safety when the T-shaped connector is used.

Further as a preferred embodiment, an external thread 231 is provided below the vertical section 230. When the insulating layer 120 is molded, the inner shielding layer 130 needs to be relatively fixed in the protective shell 200, and the outer surface of the vertical section 230 is provided with the external thread, so that the core of the inner shielding layer 130 can be relatively fixedly mounted on the vertical section 230, and the structure is simplified.

Further as a preferred embodiment, the glue inlet 111 is higher than the outer surface of the protective shell 200. When the insulating layer 120 is molded, the glue inlet 111 extends out of the glue injection port 210, so that the glue inlet 111 can be higher than the outer surface of the protective shell 200. The glue inlet is slightly higher than the outer surface of the protective shell, so that flowing glue can better enter the inner joint when glue is injected, and the glue is prevented from overflowing outside the protective shell.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and substitutions without departing from the spirit of the invention.

Claims (5)

1. The utility model provides a T type connects, includes the nipple, the nipple includes cortex, insulating layer, internal shield layer, cortex, insulating layer are T type structure, the insulating layer is located between cortex and the internal shield layer, its characterized in that: the protective shell is of a T-shaped cavity structure, the protective shell is of an integral seamless structure, the inner joint is concealed in the cavity of the protective shell, a glue injection port is formed in the protective shell, the outer skin layer comprises a glue inlet, the position of the glue injection port is opposite to that of the glue inlet, and the glue inlet is communicated with the insulating layer.

2. A T-joint as defined in claim 1, wherein: the protective housing includes horizontal section and vertical section, the both sides of vertical section are equipped with logical groove, the cortex is including the earthing ear, the earthing ear is followed it stretches out to lead to the groove outwards.

3. A T-joint as defined in claim 2, wherein: the transverse section is located above the vertical section, and an external thread is arranged below the vertical section.

4. A T-joint as defined in claim 2, wherein: the glue injection port is located in the middle of the transverse section.

5. A T-joint as defined in claim 1, wherein: the glue inlet is higher than the outer surface of the protective shell.

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