CN207474792U - A kind of fast plug-pull waterproof connection structure - Google Patents

Abstract

The utility model discloses a fast plug-in waterproof connection structure, which comprises a matched plug interface and a socket interface. A first external thread is arranged on the outer ring of one end of the socket interface; a base is provided at the tail end of the first external thread, and the base The diameter of the socket interface is larger than the nominal diameter of the first external thread; the base connects the two ends of the socket interface; the other end of the socket interface is a hollow inner cavity, and a second external thread is arranged on the outside, and the connection between the internal cavity and the second external thread A cavity wall is formed between the cavity; a first waterproof layer is provided between the bottom surface of the inner cavity and the plug interface; one end of the plug interface is provided with a straight bayonet, and the bayonet corresponds to the slot in the socket interface; the other end of the plug interface A third external thread is provided; a shaft shoulder is provided at the end of the third external thread; a second waterproof layer is provided between the bayonet socket and the shaft shoulder, and the second waterproof layer is located at the groove of the plug interface. The utility model has the advantages of simple structure and good waterproof function, can be used in single or multiple forms, and saves assembly efficiency of connecting devices.

Description

A quick-plug waterproof connection structure

technical field

The utility model relates to the technical field of electrical connectors, in particular to a quick-plug waterproof connection structure.

Background technique

Commonly used connectors are mostly in the form of coaxial cables, which are mainly composed of a socket, several conductive connecting terminals inside, and a plug containing conductive sheets. The plug is matched with the socket to make the several connecting terminals and The conductive sheets are connected to form an electrical path, but when the external force is pulled, the joint of the connector is easy to loosen, resulting in incomplete electrical connection between the conductive connection terminal and the conductive sheet, thereby reducing the quality of power or electronic signal transmission and effectively fixing The stable and firm combination of the socket and the plug, as well as the quick and easy assembly and disassembly of the socket and the plug without affecting its performance, are major issues that the wire connector industry needs to face.

For connectors commonly used in daily life, the coaxial cable quick connector structure can effectively solve the connection problem of coaxial cables. This type of connector is cumbersome to plug and unplug, and the disassembly is single, the process is cumbersome and complicated, and it is extremely inconvenient for ordinary people to disassemble and assemble, and it does not have the ability to plug and unplug multiple waterproof connectors at the same time.

Therefore, the above existing problems need to be further improved and optimized.

Contents of the invention

The purpose of the utility model is to provide a fast plug-in waterproof connection structure, the fixing method is simple in structure, avoids cumbersomeness and is not easy to plug in and out, and adopts a double waterproof method to improve the waterproof level of the connection structure and improve product quality. The socket interfaces of multiple connection structures are fixed by threads, and each socket interface cooperates with a plug interface, which can be quickly plugged and pulled out for multiple connection structures at the same time; it can also be processed for a single connection structure, and it is installed outside the socket interface. Installing a fastening nut increases the pull-out force of a single connection structure, and also satisfies the normal use of a single connection structure underwater.

The utility model is achieved through the following technical solutions.

A quick-plug waterproof connection structure, including a matching plug interface and a socket interface, a first external thread is provided on the outer ring of one end of the socket interface, and is used for screwing the socket interface; the first external thread The tail end of the thread is provided with a base, and the diameter of the base is larger than the nominal diameter of the first external thread; the base connects the two ends of the socket interface; the other end of the socket interface is hollow The inner cavity is provided with a second external thread on the outside, and a cavity wall is formed between the inner cavity and the second external thread; a first waterproof layer is provided between the bottom surface of the inner cavity and the plug interface; the One end of the plug interface is provided with a straight bayonet, and the bayonet is in one-to-one correspondence with the slots in the socket interface; the other end of the plug interface is provided with a third external thread; the tail end of the third external thread is provided with There is a shaft shoulder; a second waterproof layer is provided between the bayonet socket and the shaft shoulder, and the second waterproof layer is located at the groove of the plug interface.

The utility model provides a fast plug-in waterproof connection structure, which is provided with a double waterproof structure to improve the waterproof level of the connection structure; the threaded connection is adopted, wherein the first external thread and the third external thread respectively connect the The socket interface and the plug interface are connected to the cable, and the one-to-one matching bayonet and slot play a role in limiting the position installation of the socket interface and the plug interface. The working form of the utility model is that a plurality of socket interfaces are screwed and fixed by the first external thread, a first waterproof layer is laid on the bottom of the inner cavity, and a second waterproof layer is sleeved on the groove. A waterproof layer, the bayonet is fitted with the slot along the axis of the socket interface and installed inside the socket.

Enhance the waterproof ability to facilitate the adjustment of the gap between the relative sections of the plug interface and the socket interface, wherein, in order to maximize the effect of the first waterproof layer, preferably, the first waterproof layer is a waterproof pad , the diameter of the outer ring of the waterproof pad is larger than the maximum diameter of the bayonet socket, and the waterproof pad can realize the waterproof measure of end face compression.

To further improve the waterproof performance of the waterproof connection structure, preferably, the second waterproof layer is a waterproof ring, the waterproof ring is set on the plug interface, and is interference fit with the cavity wall of the socket interface. The waterproof ring completes the measure of pressing waterproof from the side.

Generally speaking, one bayonet can achieve the effect of position limitation, and one of the purposes of the utility model is to facilitate quick insertion and removal, increase the number of bayonet sockets, and increase the distance between the bayonet socket and the bayonet slot without additional components. The contact area improves the frictional force. In the natural state, the plug interface and the socket are not easy to loosen. In order to increase the uniformity of the force, preferably, the bayonet includes a main bayonet and a plurality of auxiliary bayonets. Bayonet.

Further, along the radial direction of the plug interface, the thickness of the main bayonet and the auxiliary bayonet are the same; along the circumferential direction of the plug interface, the width of each of the auxiliary bayonets is the same. Wherein, the width of the main bayonet is different from that of the multiple auxiliary bayonets, which facilitates one-to-one correspondence between the bayonets in the plug interface and the slots in the socket interface, and also stabilizes the connection position of the conductive structure.

Furthermore, the number of the secondary bayonet is two, which are distributed in a 120° circular array with the main bayonet. To avoid too many slave cards, choose two as an optimal method, which not only achieves relative stability when the plug interface and socket interface are combined, but also avoids excessive number of secondary bayonets to reduce plugging efficiency.

The shaft shoulder not only limits the maximum displacement of the plug interface into the socket interface, but also facilitates the use of the fastening nut. Preferably, the outer diameter of the shaft shoulder is within the range of the cavity wall between inner and outer diameters.

As a preferred solution of the present invention, the second external thread is further fitted with a fastening nut, which is used to enhance the drawing ability of a single connecting structure. The second working form of the utility model: the single socket interface is screwed and fixed by the first external thread, the first waterproof layer is laid on the bottom of the inner cavity, and the first waterproof layer is sleeved on the groove. Two waterproof layers, the fastening nut is inserted into the plug interface, and the bayonet is installed along the axis of the socket interface and the card slot to the inside of the socket. After the plug interface is properly matched, the fastening nut is screwed with the threaded structure of the socket interface, which increases the pulling force for pulling apart the connecting structure, and the fixing method is simple in structure, avoiding cumbersomeness and making it difficult to plug in and out.

Compared with the prior art, the beneficial effect of the utility model is that: a quick plug-in waterproof connection structure is provided, and a double waterproof structure is provided; the method of screw connection can also be processed for a single connection structure. A fastening nut is installed on the outside of the interface, which increases the pulling force and can also meet the normal use under water. The matching bayonet and slot play a role in the installation of the socket interface and the plug interface. Uniquely limited. The fixing method of the utility model is simple in structure, avoids tediousness and is not easy to plug in and out, improves the waterproof level of the connection structure, and improves product quality.

Description of drawings

FIG. 1 is an assembly diagram of a quick-plug waterproof connection structure in Embodiment 1. FIG.

FIG. 2 is a schematic perspective view of the three-dimensional structure of the plug interface of Embodiment 1. FIG.

FIG. 3 is a schematic perspective view of the three-dimensional structure of the socket interface of Embodiment 1. FIG.

FIG. 4 is an assembly diagram of a quick-plug waterproof connection structure in Embodiment 2. FIG.

In the figure: 1, plug interface; 101, main bayonet; 102, auxiliary bayonet; 103, third external thread; 104, shaft shoulder; 106, groove; 2, socket interface; 201, first external thread; 202 , the base; 203, the second external thread; 204, the cavity wall; 205, the slot; 3, the waterproof pad; 4, the fastening nut; 5, the waterproof ring.

Detailed ways

The technical solutions of the various embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" The orientation or positional relationship indicated by etc. is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, use a specific The azimuth structure and operation, therefore can not be construed as the limitation of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a flexible connection. Detachable connection, or integral connection; it can be mechanical connection or electrical connection; it can be direct connection or indirect connection through an intermediary, and it can be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present utility model in specific situations.

The utility model will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

Example 1

As shown in Figures 1 to 3, this embodiment provides a quick-plug waterproof connection structure, which includes a matched plug interface 1 and a socket interface 2, and a first external thread 201 is provided on the outside of one end of the socket interface 2. The socket interface 2 is fixedly installed; the tail end of the first external thread 201 is provided with a base 202; the other end of the socket interface 2 is connected to the base 202, and the other end is a hollow cavity, A second external thread 203 is provided on the outside, and a cavity wall 204 is formed between the inner cavity and the second external thread 203; a first waterproof layer is provided between the bottom surface of the inner cavity and the plug interface 1, so The first waterproof layer is a waterproof pad 3, one end of the plug interface 1 is provided with a straight bayonet, and the plug interface is inserted into the slot 205 in the socket interface 2 one by one along the bayonet, The bayonet can be divided into a main bayonet 101 and two auxiliary bayonets 102, the main bayonet 101 and the two auxiliary bayonets 102 are distributed in a 120° circular array; the outer ring diameter of the waterproof pad 3 Greater than the maximum diameter of the main bayonet 101 or the auxiliary bayonet 102; the other end of the plug interface 1 is provided with a third external thread 103; the tail end of the third external thread 103 is provided with a shoulder 104; the bayonet A second waterproof layer is provided between the shaft shoulder 104, the second waterproof layer is a waterproof ring 5, and the waterproof ring 5 is sleeved at the groove 106 of the plug interface 1, and is connected with the socket The cavity wall 204 of the interface 2 is an interference fit; wherein, the value of the outer diameter of the shaft shoulder 104 is located between the inner and outer diameters of the cavity wall 204, and in this embodiment, the outer ring of the shaft shoulder 104 is close to The bottom teeth of the second external thread 203 .

Specifically, along the radial direction of the plug interface 1, the thickness of the main bayonet 101 and the two secondary bayonets 102 are the same; along the circumferential direction of the plug interface 1, each of the secondary bayonets 102 have the same width, and the width of the main bayonet 101 is different from that of the secondary bayonet 102, which highlights the singleness of the position of the main bayonet, which is convenient for the bayonet in the plug interface 1 to connect with the socket interface 2. The card slots 205 can be in one-to-one correspondence, which also maintains the stability of the connection position of the conductive structure. Increase the quantity of auxiliary bayonet 102, namely increase the contact area of bayonet and draw-in groove 205, improve frictional force, under natural state, between described plug interface 1 and described socket interface 2 not easy to loosen, in order to increase stress Uniformity,

In this embodiment, as a preferred solution, the waterproof pad 3 can realize the waterproof measures of end face compression, and the waterproof ring 5 can complete the waterproof measures of pressing from the side. This embodiment improves the waterproof performance of the connection structure and enhances the waterproof ability. It is convenient to adjust the gap between the relative sections of the plug interface 1 and the socket interface 2. The shoulder 104 not only limits the maximum displacement of the plug interface 1 into the socket interface 2, but also needs to facilitate the tightening The use of solid nut 4. This embodiment is also provided with a double waterproof structure; threaded connection is adopted, wherein the first external thread 201 and the third external thread 103 are respectively used to connect the socket interface 2 and the plug interface 1 with cables, and the second The external thread 203 is used to increase the pulling force when a single connection structure is used; the one-to-one matching bayonet and slot 205 play a unique role in the installation of the socket interface 2 and the plug interface 1. Sexual limitation.

The working form of this embodiment is that a plurality of the socket interfaces 2 are fixed by the first external thread 201, a waterproof pad 3 is laid on the bottom of the inner cavity, and a waterproof ring is set on the groove 106. 5. The bayonet slot is matched with the card slot 205 along the central axis of the socket interface 2 and moves linearly to the inside of the socket interface 2 to a suitable position.

Example 2

This embodiment serves as a further improvement and supplement to Embodiment 1. As shown in FIG. 4, this embodiment is the second working form: a single socket interface 2 is fixed by the first external thread 201, and The bottom of the cavity is tiled with a waterproof pad, and a waterproof ring is set on the groove, and the fastening nut 4 is inserted in the plug interface, and the bayonet is along the axis of the socket interface 2 and the The card slots are matched to the inside of the socket interface 2 for mobile installation. After the socket interface 2 and the plug interface are just matched, the fastening nut 4 and the second socket on the socket interface 2 The screwing of the external thread increases the pulling force for pulling apart the connecting structure, and the fixing method is simple in structure, avoids cumbersomeness and is not easy to plug in and out, improves the waterproof level of the connecting structure, and thus improves the product quality.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present utility model, and are not intended to limit it; although the utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: It is still possible to modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the technical solutions of the embodiments of the present invention.

Claims (8)

1. A quick-plug waterproof connection structure, comprising a matching plug interface and a socket interface, characterized in that a first external thread is provided on the outer ring of one end of the socket interface, and is used for screwing and installing the socket interface The tail end of the first external thread is provided with a base, and the diameter of the base is larger than the nominal diameter of the first external thread; the base connects the two ends of the socket interface; the socket interface The other end is a hollow inner cavity, and a second external thread is provided on the outside, and a cavity wall is formed between the inner cavity and the second external thread; a second external thread is provided between the bottom surface of the inner cavity and the plug interface. A waterproof layer; one end of the plug interface is provided with a straight bayonet, and the bayonet is in one-to-one correspondence with the slots in the socket interface; the other end of the plug interface is provided with a third external thread; the third A shaft shoulder is provided at the tail end of the external thread; a second waterproof layer is provided between the bayonet socket and the shaft shoulder, and the second waterproof layer is located at the groove of the plug interface. 2 . The quick-plug waterproof connection structure according to claim 1 , wherein the first waterproof layer is a waterproof pad, and the diameter of the outer circle of the waterproof pad is larger than the maximum diameter of the bayonet socket. 3 . 3. A quick plug-in waterproof connection structure according to claim 1, wherein the second waterproof layer is a waterproof ring, and the waterproof ring is set on the plug interface and connected to the socket interface. The cavity wall interference fit. 4. The quick-plug waterproof connection structure according to claim 1, wherein the bayonet includes a main bayonet and a plurality of auxiliary bayonets. 5. A quick-plug waterproof connection structure according to claim 4, characterized in that, along the radial direction of the plug interface, the thickness of the main bayonet and the secondary bayonet are the same; In the circumferential direction of the plug interface, each of the secondary bayonets has the same width. 6. A quick-plug waterproof connection structure according to claim 4 or 5, characterized in that, the number of the secondary bayonets is two, and the main bayonet and the two secondary bayonets are in the form of 120° circular array distribution. 7 . The quick-plug waterproof connection structure according to claim 1 , wherein the outer diameter of the shaft shoulder is between the inner and outer diameters of the cavity wall. 8 . 8. A quick-plug waterproof connection structure according to claim 1, characterized in that, the second external thread is also fitted with a fastening nut, which is used to strengthen the pull-out ability of a single connection structure .