Self-locking connector

Abstract

The utility model discloses a self-locking connector, comprising a first connector, the axial end face of which is provided with an electric connection plug, the middle part of which is provided with an electric connection piece, the outer edge of the electric connection plug is annularly provided with a first connection mechanism, the front part of the first connection mechanism is provided with an elastic sheet, and the front part of the elastic sheet is provided with a limiting part; one side, back on to the limiting part, of the front part of the elastic sheet sinks to form a receding groove; an electric connection socket is arranged on the axial end face of the second connector, a protruding part is arranged in the middle of the electric connection socket, an electric connection hole corresponding to the electric connection piece is formed in the protruding part, a second connection mechanism is annularly arranged on the outer edge of the electric connection socket, and a limiting hole corresponding to the limiting part is formed in the second connection mechanism; and when the first connector is connected with the second connector, the limiting part is clamped in the limiting hole. According to the self-locking connector provided by the utility model, after the first connector is inserted into the second connector, if the first connector is tried to be pulled out, the limiting part is propped against the side wall of the limiting hole and cannot move, so that self-locking is realized.

Description

Technical Field

[0001] The utility model relates to the field of connectors, in particular to a self-locking connector. Background Art

[0002] Most existing connectors do not have a self-locking function. During use, they are easily loosened due to pulling, resulting in a decrease in connection performance, or even damage to the connector and the devices connected at both ends, affecting the personal safety of users and the safety of the devices. For connectors with a self-locking function, the existing technology mostly uses a ring structure or a spring structure, which is relatively complex.

[0003] In view of the above defects, the present invention proposes a self-locking connector. Utility Model Content

[0004] The utility model aims to provide a self-locking connector, which enables the connector to achieve self-locking through a simple structure, improves connection stability, and reduces equipment cost.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a self-locking connector, the self-locking connector comprising:

[0007] A first connector, wherein an electrical connection plug is provided on an axial end surface of the first connector, an electrical connection piece is provided in the middle of the electrical connection plug, a first connection mechanism is provided on an outer edge ring of the electrical connection plug, a mounting groove is provided on the front portion of the first connection mechanism along the axial direction of the first connector, a spring sheet is provided in the mounting groove, a limiting portion is provided on the front portion of the spring sheet, and a side of the front portion of the spring sheet facing away from the limiting portion is recessed in a radial direction of the first connector toward a side away from the first connector to form a clearance groove;

[0008] A second connector, wherein an electrical connection socket is provided on an axial end surface of the second connector, a protrusion is provided in the middle of the electrical connection socket, an electrical connection hole corresponding to the electrical connector is provided on the protrusion, a second connection mechanism is provided around the outer edge of the electrical connection socket, and a limiting hole is provided on the second connection mechanism corresponding to the limiting portion;

[0009] When the first connector is connected to the second connector, the limiting portion is locked in the limiting hole, and the outer surface of the first connecting mechanism and the inner surface of the second connecting mechanism form surface contact.

[0010] In the present technical solution, during the process of inserting the first connector into the second connector, the limiting portion abuts against and is squeezed against the inner surface of the second connecting mechanism, causing the spring sheet to produce elastic deformation, and when the limiting portion enters the limiting hole, the spring sheet returns to the state when it is not subjected to force. At this time, if an attempt is made to pull out the first connector, the limiting portion will abut against the side wall of the limiting hole and cannot move, thereby achieving self-locking. At this time, the electrical connector is inserted into the electrical connecting hole; when unlocking, the spring sheet is pressed down so that the limiting portion is located on the inner side of the second connecting mechanism and then the first connector is pulled out to achieve unlocking. After releasing the spring sheet, the spring sheet automatically returns to the state when it is not subjected to force.

[0011] Preferably, a pressing handle is provided at the rear of the elastic sheet, and the pressing handle protrudes outward from the first connecting mechanism along the radial direction of the first connector.

[0012] In this technical solution, the pressing handle protrudes from the first connecting mechanism, which is convenient for pressing when unlocking.

[0013] Preferably, a gap is formed between the spring sheet and the side surface of the mounting groove.

[0014] In the technical solution, the spring piece is connected to the first connecting mechanism only at the end, and has a large movable space when pressed, thereby avoiding damage caused by pressing.

[0015] Preferably, the front portion of the limiting portion is an inclined surface.

[0016] In this technical solution, the force on the limiting part and the spring piece changes gradually during the movement, thereby avoiding damage caused by sudden changes.

[0017] Preferably, the outer end of the second connecting mechanism along the axial direction of the second connector corresponding to the limiting hole is an inclined surface inclined toward the axis of the second connector.

[0018] In the technical solution, a guiding surface is formed on the second connecting mechanism to reduce the resistance when the limiting part moves.

[0019] Preferably, the first connector is provided with two elastic sheets, and the second connector is correspondingly provided with two limiting holes.

[0020] In the technical solution, a plurality of matching spring sheets and limiting holes are provided to make the connection between the first connector and the second connector tighter and enhance the self-locking stability.

[0021] Preferably, the electrical connection member and the electrical connection hole are both plural.

[0022] In this technical solution, multiple electrical connectors can be connected to different power sources, thereby facilitating the realization of multiple transmission functions.

[0023] Preferably, a positioning portion is provided on the outer surface of the first connecting mechanism, and a positioning groove is provided on the inner surface of the second connecting mechanism corresponding to the positioning portion.

[0024] In the present technical solution, the positioning portion cooperates with the positioning groove so that the relative position of the first connector when inserted into the second connector is determined, thereby avoiding damage to the electrical connector due to improper insertion.

[0025] Preferably, a side ring of the protrusion is provided with a receiving groove, and an elastic sealing ring is provided in the receiving groove; when the first connector is connected to the second connector, the elastic sealing ring abuts against the inner surface of the first connecting mechanism.

[0026] In the present technical solution, when the first connector is inserted into the second connector, the elastic sealing ring is squeezed to fit tightly to achieve a waterproof effect. At the same time, a damping effect is generated when the spring sheet is pressed to avoid damage caused by sudden force changes.

[0027] Preferably, the elastic sealing ring is arranged at the front part of the protrusion.

[0028] In the present technical solution, when the first connector is inserted into the second connector, it is pushed until the elastic sealing ring is squeezed, indicating that the insertion is in place, thereby avoiding damage to the electrical connector caused by excessive insertion.

[0029] On the basis of conforming to the common sense in the art, the above-mentioned preferred conditions can be arbitrarily combined to obtain the preferred embodiments of the present utility model.

[0030] The positive and progressive effects of the utility model are:

[0031] In the self-locking connector of the utility model, during the process of inserting the first connector into the second connector, the limiting portion abuts against and is squeezed against the inner surface of the second connecting mechanism, causing the spring sheet to produce elastic deformation, and when the limiting portion enters the limiting hole, the spring sheet returns to the state when it is not subjected to force. At this time, if an attempt is made to pull out the first connector, the limiting portion will abut against the side wall of the limiting hole and cannot move, thereby achieving self-locking, and the electrical connecting piece is inserted into the electrical connecting hole at this time; when unlocking, the spring sheet is pressed down so that the limiting portion is located on the inner side of the second connecting mechanism and then the first connector is pulled out to achieve unlocking. After the spring sheet is released, the spring sheet automatically returns to the state when it is not subjected to force.

[0032] To further understand the features and technical contents of the present application, please refer to the following detailed description and drawings of the present application. However, the detailed description and drawings here are only used to illustrate the present application and do not impose any limitation on the scope of the claims of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The above and other features and advantages of the present application will become more apparent by describing in detail example embodiments thereof with reference to the attached drawings.

[0034] Figure 1 It is a three-dimensional schematic diagram of a self-locking connector according to an embodiment of the utility model.

[0035] Figure 2 It is a partial enlarged schematic diagram of the self-locking connector according to the embodiment of the utility model.

[0036] Figure 3 It is a three-dimensional schematic diagram of the first connector of the self-locking connector according to an embodiment of the utility model.

[0037] Figure 4 It is a cross-sectional schematic diagram of a first connector of a self-locking connector according to an embodiment of the utility model.

[0038] Figure 5 It is a three-dimensional schematic diagram of the second connector of the self-locking connector according to an embodiment of the utility model.

[0039] Figure 6 It is a cross-sectional schematic diagram of the second connector of the self-locking connector according to an embodiment of the utility model.

[0040] Reference numerals

[0041] 1 First connector

[0042] 11 Electrical connection plug

[0043] 12 Positioning unit

[0044] 111 Electrical connector

[0045] 112 First connecting mechanism

[0046] 113 Press handle

[0047] 114 Shrapnel

[0048] 115 Limiting part

[0049] 116 Give way slot

[0050] 2 Second connector

[0051] 21 Electrical connection socket

[0052] 22 Positioning slot

[0053] 211 Protrusion

[0054] 212 Electrical connection hole

[0055] 213 Second connecting mechanism

[0056] 214 Limiting hole

[0057] 215 Receiving slot

[0058] 216 elastic sealing ring DETAILED DESCRIPTION

[0059] The following describes the implementation methods of the present application through specific examples, and those skilled in the art can easily understand other advantages and effects of the present application from the content disclosed in the present application. The present application can also be implemented or applied through other different specific implementation methods, and the details in the present application can also be modified or changed in various ways according to different viewpoints and application systems without departing from the spirit of the present application. It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict.

[0060] The following is a detailed description of the embodiments of the present application with reference to the accompanying drawings so that those skilled in the art can easily implement the present application. The present application can be embodied in a variety of different forms and is not limited to the embodiments described herein.

[0061] In the representations of the present application, the representations with reference to the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" etc. mean that the specific features, structures, materials or characteristics represented in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the represented specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples represented in the present application and the features of the different embodiments or examples, unless they contradict each other.

[0062] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the representation of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0063] In order to clearly describe the present application, components irrelevant to the description are omitted, and the same reference symbols are given to the same or similar components throughout the specification.

[0064] Throughout the specification, when a device is said to be "connected" to another device, this includes not only the case of "direct connection" but also the case of "indirect connection" by placing other elements therebetween. In addition, when a device is said to "include" a certain component, unless otherwise stated, it does not exclude other components, but means that other components may be included.

[0065] When a device is said to be "on" another device, it may be directly on the other device, but there may also be other devices between it. In contrast, when a device is said to be "directly" on another device, there are no other devices between it.

[0066] Although the terms first, second, etc. are used to represent various elements in some examples, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, the first interface and the second interface, etc. are represented. Moreover, as used in this article, the singular forms "one", "one" and "the" are intended to also include plural forms, unless there is an opposite indication in the context. It should be further understood that the terms "comprising" and "including" indicate the existence of features, steps, operations, elements, components, projects, kinds, and / or groups, but do not exclude the existence, occurrence or addition of one or more other features, steps, operations, elements, components, projects, kinds, and / or groups. The terms "or" and "and / or" used herein are interpreted as inclusive, or mean any one or any combination. Therefore, "A, B or C" or "A, B and / or C" means "any of the following: A; B; C; A and B; A and C; B and C; A, B and C". Only when the combination of elements, functions, steps or operations is inherently mutually exclusive in some way, will there be an exception to this definition.

[0067] The technical terms used herein are only used to refer to specific embodiments and are not intended to limit the present application. The singular form used herein also includes the plural form unless the sentence clearly indicates the contrary meaning. The meaning of "including" used in the specification is to specify specific characteristics, regions, integers, steps, operations, elements and / or components, and does not exclude the existence or addition of other characteristics, regions, integers, steps, operations, elements and / or components.

[0068] Although not defined differently, all terms, including technical and scientific terms used herein, have the same meaning as those generally understood by those skilled in the art to which this application belongs. Terms defined in commonly used dictionaries are additionally interpreted as having meanings consistent with the relevant technical literature and the contents of the current disclosure, and unless defined, shall not be overly interpreted as ideal or very formal meanings.

[0069] like Figures 1 to 6 As shown, the self-locking connector of the utility model includes:

[0070] A first connector 1, an electrical connection plug 11 is provided on an axial end surface of the first connector 1, an electrical connection member 111 is provided in the middle of the electrical connection plug 11, a first connection mechanism 112 is provided around the outer edge of the electrical connection plug 11, a mounting groove is provided at the front of the first connection mechanism 112 along the axial direction of the first connector 1, a spring sheet 114 is provided in the mounting groove, a limiting portion 115 is provided at the front of the spring sheet 114, and a side of the front of the spring sheet 114 facing away from the limiting portion 115 is recessed in a radial direction of the first connector 1 to a side away from the first connector 1 to form a clearance groove 116;

[0071] A second connector 2, an electrical connection socket 21 is provided on the axial end surface of the second connector 2, a protrusion 211 is provided in the middle of the electrical connection socket 21, an electrical connection hole 212 corresponding to the electrical connection member 111 is provided on the protrusion 211, a second connection mechanism 213 is provided on the outer edge of the electrical connection socket 21, and a limiting hole 214 is provided on the second connection mechanism 213 corresponding to the limiting portion 115;

[0072] When the first connector 1 is connected to the second connector 2, the limiting portion 115 is locked in the limiting hole 214, and the outer surface of the first connecting mechanism 112 forms a surface contact with the inner surface of the second connecting mechanism 213. The spring 114 is formed by injection molding and fixed in the installation groove.

[0073] During the process of inserting the first connector 1 into the second connector 2, the limiting portion 115 abuts against and is squeezed by the inner surface of the second connecting mechanism 213, causing the spring sheet 114 to produce elastic deformation. When the limiting portion 115 enters the limiting hole 214, the spring sheet 114 returns to the state when it is not subjected to force. At this time, if an attempt is made to pull out the first connector 1, the limiting portion 115 will abut against the side wall of the limiting hole 214 and cannot move, thereby achieving self-locking. At this time, the electrical connector 111 is inserted into the electrical connecting hole 212. When unlocking, press down the spring sheet 114 so that the limiting portion 115 is located on the inner side of the second connecting mechanism 213 and then pull out the first connector 1 to achieve unlocking. After releasing the spring sheet 114, the spring sheet 114 automatically returns to the state when it is not subjected to force.

[0074] In other embodiments, the spring piece 114 may also be fixed in the installation slot by means of slotting or mortise and tenon joints.

[0075] In this embodiment, a pressing handle 113 is provided at the rear of the spring 114, and the pressing handle 113 protrudes outward from the first connection mechanism 112 along the radial direction of the first connector 1. The pressing handle 113 protrudes from the first connection mechanism 112, which is convenient for pressing when unlocking.

[0076] A gap is formed between the spring piece 114 and the side of the installation slot. The spring piece 114 is connected to the first connecting mechanism 112 only at the end, and has a large movable space when pressed to avoid damage caused by pressing.

[0077] The front part of the limiting part 115 is an inclined surface. The limiting part 115 and the spring piece 114 are subjected to gradually changing forces during the movement, thereby avoiding damage caused by abrupt changes.

[0078] The outer end of the second connection mechanism 213 along the axial direction of the second connector 2 corresponding to the limiting hole 214 is an inclined surface inclined toward the axis of the second connector 2. A guiding surface is formed on the second connection mechanism 213 to reduce the resistance when the limiting portion 115 moves.

[0079] Two spring pieces 114 are provided on the first connector 1, and two limiting holes 214 are correspondingly provided on the second connector 2. Providing a plurality of matching spring pieces 114 and limiting holes 214 makes the connection between the first connector 1 and the second connector 2 tighter and enhances the self-locking stability.

[0080] In other embodiments, according to actual needs and processing technology, the number of the spring pieces 114 and the corresponding limiting holes 214 may also be one or three.

[0081] In this embodiment, there are seven electrical connectors 111 and seven electrical connection holes 212, two of which are larger and five are smaller. The electrical connector 111 can be connected to different power sources, thereby facilitating the realization of multiple transmission functions.

[0082] In other embodiments, depending on the use of the product, the number of the electrical connectors 111 and the corresponding electrical connection holes 212 may also be at least two, and their relative sizes may also be the same.

[0083] In this embodiment, a positioning portion 12 is provided on the outer surface of the first connecting mechanism 112, and a positioning groove 22 is provided on the inner surface of the second connecting mechanism 213 corresponding to the positioning portion 12. The positioning portion 12 cooperates with the positioning groove 22 to determine the relative position of the first connector 1 when inserted into the second connector 2, thereby avoiding damage to the electrical connector 111 caused by improper insertion.

[0084] The side of the protrusion 211 is provided with a receiving groove 215, and an elastic sealing ring 216 is provided in the receiving groove 215; when the first connector 1 is connected to the second connector 2, the elastic sealing ring 216 abuts against the inner surface of the first connecting mechanism 112. When the first connector 1 is inserted into the second connector 2, the elastic sealing ring 216 is squeezed to fit tightly to achieve a waterproof effect. At the same time, a damping effect is generated when the spring sheet 114 is pressed to avoid damage caused by sudden force changes. In this embodiment, the waterproof effect can reach IP67.

[0085] The elastic sealing ring 216 is disposed at the front of the protrusion 211. When the first connector 1 is inserted into the second connector 2, the elastic sealing ring 216 is pushed to be inserted into place, thereby preventing the electrical connector 111 from being damaged due to excessive insertion.

[0086] In summary, the purpose of the utility model is to provide a self-locking connector, which enables the connector to achieve self-locking through a simple structure, improves connection stability, and reduces equipment costs.

[0087] The above contents are further detailed descriptions of the present invention in combination with specific preferred implementations, and the specific implementation of the present invention cannot be considered to be limited to these descriptions. For ordinary technicians in the technical field to which the present invention belongs, several simple deductions or substitutions can be made without departing from the concept of the present invention, which should be regarded as falling within the protection scope of the present invention.

Claims

1. A self-locking connector, characterized in that: The self-locking connector comprises: A first connector (1), wherein an electrical connection plug (11) is provided on an axial end face of the first connector (1), an electrical connection piece (111) is provided in the middle of the electrical connection plug (11), a first connection mechanism (112) is provided around the outer edge of the electrical connection plug (11), a mounting groove is provided at the front of the first connection mechanism (112) along the axial direction of the first connector (1), a spring sheet (114) is provided in the mounting groove, a limiting portion (115) is provided at the front of the spring sheet (114), and a side of the front of the spring sheet (114) facing away from the limiting portion (115) is recessed in a radial direction of the first connector (1) towards a side away from the first connector (1) to form a clearance groove (116); A second connector (2), wherein an electrical connection socket (21) is provided on an axial end face of the second connector (2), a protrusion (211) is provided in the middle of the electrical connection socket (21), an electrical connection hole (212) corresponding to the electrical connection member (111) is provided on the protrusion (211), a second connection mechanism (213) is provided around the outer edge of the electrical connection socket (21), and a limiting hole (214) is provided on the second connection mechanism (213) corresponding to the limiting portion (115); When the first connector (1) is connected to the second connector (2), the limiting portion (115) is locked in the limiting hole (214), and the outer surface of the first connecting mechanism (112) and the inner surface of the second connecting mechanism (213) form surface contact.

2. The self-locking connector according to claim 1, characterized in that: A pressing handle (113) is provided at the rear of the spring sheet (114), and the pressing handle (113) protrudes outward from the first connecting mechanism (112) in the radial direction of the first connector (1).

3. The self-locking connector according to claim 1, characterized in that: A gap is formed between the spring sheet (114) and the side surface of the installation groove.

4. The self-locking connector according to claim 1, characterized in that: The front portion of the limiting portion (115) is an inclined surface.

5. The self-locking connector according to claim 4, characterized in that: The outer end of the second connecting mechanism (213) along the axial direction of the second connector (2) corresponding to the limiting hole (214) is an inclined surface inclined towards the axis of the second connector (2).

6. The self-locking connector according to claim 1, characterized in that: The first connector (1) is provided with two spring sheets (114), and the second connector (2) is correspondingly provided with two limiting holes (214).

7. The self-locking connector according to claim 1, characterized in that: The electrical connection member (111) and the electrical connection hole (212) are both plural.

8. The self-locking connector according to claim 7, characterized in that: A positioning portion (12) is provided on the outer surface of the first connecting mechanism (112), and a positioning groove (22) is provided on the inner surface of the second connecting mechanism (213) corresponding to the positioning portion (12).

9. The self-locking connector according to claim 1, characterized in that: The side ring of the protrusion (211) is provided with a receiving groove (215), and an elastic sealing ring (216) is provided in the receiving groove (215); when the first connector (1) is connected to the second connector (2), the elastic sealing ring (216) abuts against the inner surface of the first connecting mechanism (112).

10. The self-locking connector according to claim 9, characterized in that: The elastic sealing ring (216) is arranged in front of the protruding portion (211).

Images