CN114765327A

CN114765327A - Locking connector

Info

Publication number: CN114765327A
Application number: CN202110173406.XA
Authority: CN
Inventors: 窦丹风; 钱志华
Original assignee: Jiangsu Handa Power Technology Co ltd
Current assignee: Jiangsu Handa Power Technology Co ltd
Priority date: 2021-02-08
Filing date: 2021-02-08
Publication date: 2022-07-19
Anticipated expiration: 2041-02-08
Also published as: CN114765327B

Abstract

The application relates to a locking connector, comprising: the connector comprises a first connector and a second connector matched with the first connector, wherein the first connector comprises a body part and a locking piece arranged on the body part, and the connection state of the locking piece and the body part comprises a first connection state and a second connection state; when the initial connection state of the locking element and the main body part is a first connection state, the second connector is fixed with the first connector through the locking element, and when the connection state of the locking element and the main body part is converted from the first connection state to a second connection state, the second connector is separated from the locking element; if the initial connection state of the lock catch piece and the body part is the second connection state, the second connector is matched with the lock catch piece to enable the connection state of the lock catch piece and the body part to be reset to the first connection state, and then the second connector and the first connector can be fixed and separated.

Description

Locking connector

Technical Field

The invention relates to the technical field of electrical transmission equipment, in particular to a locking connector used in an electrical line transmission process.

Background

The locking connector in the prior art has the unlocking difficulty after the locking of the locking fastener, and the locking fastener is exposed out of the surface of the connector to cause the damage of the locking fastener, and has the problem of complicated structure.

Disclosure of Invention

The invention provides a locking connector, which solves the problems of difficult unlocking and lock fastener abrasion caused by exposed structural members in the prior art.

An embodiment of the present invention provides a locking connector, including: the connector comprises a first connector and a second connector matched with the first connector, wherein the first connector comprises a body part and a locking piece arranged on the body part, and the connection state of the locking piece and the body part comprises a first connection state and a second connection state;

when the connection state of the locking element and the body part is a first connection state, the second connector is fixed with the first connector through the locking element, and when the connection state of the locking element and the body part is converted from the first connection state to a second connection state, the second connector is separated from the locking element;

or when the connection state of the locking element and the body part is the second connection state, the second connector is matched with the locking element to enable the connection state of the locking element and the body part to be reset to the first connection state, the second connector is fixed with the first connector through the locking element, and when the connection state of the locking element and the body part is converted from the first connection state to the second connection state, the second connector is separated from the locking element.

In a preferred implementation manner, the latch member includes a plurality of latch arms and a latch body connected to the latch arms, the latch arms extend from two ends of the latch body along a first direction, respectively, and each latch arm further includes at least one first limiting portion; the body part of the first connector comprises a side wall, and the side wall is provided with at least one second limiting part matched with at least one first limiting part;

the lock catch arm is matched with the side wall relatively, and the first limiting part of the lock catch arm is positioned at the second limiting part in the direction opposite to the first direction, or the second limiting part is positioned at the first limiting part of the lock catch arm.

In a preferred implementation manner, the main body includes a groove for accommodating the locking element, the second position-limiting portion includes a cantilever connected to a side wall of the main body, and the groove is located between the cantilever and the side wall; the first limiting part comprises a first lug which is formed by protruding from the free end of the lock catch arm to one side of the cantilever, and the second limiting part also comprises a second lug which is formed by protruding from the free end of the cantilever to one side of the groove; the lock catch arm is positioned in the groove, and is positioned on the second bump through the first bump in the direction opposite to the first direction;

when the connection state of the locking fastener and the body part is a first connection state, the first lug of the locking fastener is arranged close to the second lug, and a first distance exists between the surfaces of mutual interference between the first lug and the second lug in the first direction.

In a preferred implementation, the first distance is zero, that is, the first bump and the second bump are in contact with each other at the mutually interfering surfaces;

or when the connection state of the locking part and the body part is a second connection state, the first bump of the locking part is arranged far away from the second bump, and a second distance exists between the surfaces of the first bump and the second bump which are mutually interfered in the first direction, wherein the second distance is larger than the first distance.

In a preferred implementation manner, when the connection state of the locking element and the main body is the second connection state, the surface of the groove opposite to the locking body is in contact with the locking body; or the free end of the cantilever is in contact with the bottom of the first limiting part.

In a preferred implementation manner, the first position-limiting part includes at least one first through hole penetrating through the latch arm, and the second position-limiting part includes at least one third protrusion protruding from the side wall; in the first direction, the first through hole comprises a first surface and a second surface which are oppositely arranged at intervals; the first surface is arranged close to the lock catch body, and the second surface is arranged close to one side of the free end of the lock catch arm.

When the connection state of the lock catch piece and the body part is a first connection state, the third bump is arranged close to the second surface of the first through hole, and a first distance exists between the third bump and the second surface in the first direction.

In a preferred implementation, the first distance is zero, that is, the third bump and the second surface are in contact with each other;

or when the connection state of the locking fastener and the body part is a second connection state, the second surface of the first through hole is far away from the third bump, and a second distance exists between the third bump and the second surface in the first direction, wherein the second distance is larger than the first distance.

In a preferred implementation manner, when the connection state of the locking element and the main body is the second connection state, the third protrusion and the first surface are in contact with each other.

In a preferred implementation manner, the main body of the first connector further includes an insertion part located at one side of the main body, and the locking element is located at one side of the main body away from the insertion part;

each lock catch arm also comprises at least one lock catch part adjacent to the first limiting part, each lock catch part comprises a lock catch block protruding out of the lock catch arm,

the lock catch block comprises a top surface opposite to the lock catch arm, a first guide surface connecting one side of the top surface close to the insertion part with the lock catch arm, and a second guide surface connecting one side of the top surface close to the free end of the lock catch arm with the lock catch arm;

the first guide surface is a surface which obliquely extends from one side of the top surface close to the plug part to the direction of the plug part;

the second guide surface is a surface extending obliquely from one side of the top surface close to the free end of the latch arm to the direction of the free end of the latch arm.

In a preferred implementation manner, the locking block further includes a third guiding surface connecting one side of the second guiding surface close to the insertion portion, the first guiding surface and the locking arm, and the third guiding surface extends obliquely from one side of the second guiding surface close to the insertion portion to one side of the first guiding surface close to the insertion portion.

In a preferred implementation manner, each of the latch arms includes a plurality of first sub-arm portions, each of the latch portions is disposed on one of the first sub-arm portions, one side of the first arm portion close to the latch body is connected to the latch arm, and through holes exist between the other three side surfaces of the first sub-arm portion and the latch arm.

A better implementation manner is that the second connector comprises an insertion port and an accommodating space communicated with the insertion port and used for accommodating the insertion part, wherein a plurality of locking grooves matched with the locking pieces are formed in the inner wall surface of one side of the accommodating space close to the insertion port;

in the direction extending from the insertion port to the accommodating space, the lock catch groove comprises a first guide groove arranged close to the insertion port and a second guide groove connected with the first guide groove, a fourth guide surface interfering with the first guide surface is formed on one side surface of the first guide groove close to the second guide groove, and the inclination direction of the fourth guide surface is the same as that of the first guide surface;

a side surface of the second guide groove in the first direction includes a fifth guide surface that interferes with the second guide surface, and an inclination direction of the fifth guide surface is the same as an inclination direction of the second guide surface;

or, in the first direction, the guide device further comprises a third guide groove connected with the second guide groove, a side surface of the second guide groove close to the third guide groove forms a fifth guide surface interfering with the second guide surface, and the inclination direction of the fifth guide surface is the same as the inclination direction of the second guide surface;

in a preferred implementation manner, the depth of the first guide groove and the second guide groove is greater than or equal to the height of the locking part; the depth of the third guide groove is smaller than 1/2 which is the height of the locking portion.

In a preferred implementation manner, when the connection state of the locking element and the main body is the first connection state, the second connector is fixed to the first connector through the locking element, which specifically includes:

inserting the inserting part of the first connector into the accommodating space of the second connector, displacing the locking part to one side far away from the inserting port in the first guide groove, and enabling the locking part to fall into the second guide groove after the first guide surface and the fourth guide surface are interfered, so that the locking part and the second connector are fixed;

when the connection state of the locking element and the body part is converted from the first connection state to the second connection state, the second connector is separated from the locking element, and the method specifically comprises the following steps:

the lock catch part is displaced towards the first direction, and the second guide surface interferes with the fifth guide surface, so that the lock catch part is separated from the second guide groove, and the second connector is separated from the lock catch part.

In a preferred implementation manner, when the connection state of the locking element and the main body is the second connection state, the second connector is matched with the locking element so that the connection state of the locking element and the main body is reset to the first connection state, specifically:

a sixth guide surface matched with the third guide surface is arranged on one side, close to the inserting port, of the first guide groove, the inserting part of the first connector is inserted into the accommodating space of the second connector, the locking part is inserted into the first guide groove, and the sixth guide surface provides acting force opposite to the first direction for the locking block in the processes of contact and separation of the sixth guide surface and the third guide surface, so that the connection state of the locking part and the body part is reset to the first connection state;

when the connection state of the locking piece and the body part is the first connection state, the second connector is fixed with the first connector through the locking piece, and the connection state is specifically as follows:

the locking part is displaced to one side far away from the inserting port in the first guide groove, and after the first guide surface is interfered with the fourth guide surface, the locking part falls into the second guide groove, so that the locking part and the second connector are fixed;

pressing the lock catch piece to convert the connection relation between the lock catch piece and the body part from a first connection state to a second connection state; the locking part is displaced along the first direction, and the second guide surface and the fifth guide surface interfere with each other, so that the locking part is separated from the second guide groove, and the second connector is separated from the locking piece.

The application provides a locking connector, it includes: the connector comprises a first connector and a second connector matched with the first connector, wherein the first connector comprises a body part and a locking piece arranged on the body part, and the connection state of the locking piece and the body part comprises a first connection state and a second connection state; when the connection state of the locking element and the body part is a first connection state, the second connector is fixed with the first connector through the locking element, and when the connection state of the locking element and the body part is converted from the first connection state to a second connection state, the second connector is separated from the locking element; or when the connection state of the latch element and the body part is the second connection state, the second connector is matched with the latch element to enable the connection state of the latch element and the body part to be reset to the first connection state, the second connector is fixed with the first connector through the latch element, and when the connection state of the latch element and the body part is converted from the first connection state to the second connection state, the second connector is separated from the latch element. According to the locking device, the locking piece which has two connection states with the first connector is arranged on one side of the first connector, and when the initial state is the first connection state, the locking function can be realized only by sleeving the second connector outside the first connector and fastening and fixing the second connector with the locking piece; if unlocking is needed, only external force is needed to press the locking piece, so that the second connector can be separated from the first connector after the locking piece is displaced along the gravity direction. If the initial state of the locking fastener and the first connector is the second connection state, an external tool is not needed at the moment, the second connector is only required to be sleeved outside the first connector, the connection relation between the locking fastener and the first connector can be reset to the first connection state through the displacement process of the second connector, the locking can be realized by repeating the action when the connection relation between the locking fastener and the first connector is the first connection state, and the connection state between the locking fastener and the first connector is restored to the second connection state by pressing the locking fastener, so that the first connector and the second connector can be separated. The locking and the separation of the first connector and the second connector can be realized only by controlling the connection state of the locking fastener and the first connector, the operation is simple, and the unlocking and locking processes are simple.

Drawings

Other features, objects and advantages of the invention will become apparent from the following detailed description of non-limiting embodiments thereof, when read in conjunction with the accompanying drawings, in which like reference characters designate the same or similar parts throughout the figures thereof, and which are not to scale.

Fig. 1 is an exploded view of a first connector of the lock connector of the present application;

FIG. 2 is an exploded view of another construction of the first connector of the locking connector of the present application;

fig. 3 is a schematic view of a latch member of the first connector of the locking connector of the present application;

fig. 4 is a partially enlarged view of the catch member of the first connector of the locking connector of the present application;

FIG. 5 is a schematic view of the first connector of the locking connector of the present application in a first connection state with the locking member;

fig. 6 is a sectional view showing a first connection state of the first connector and the locking member of the locking connector of the present application;

fig. 7 is a schematic view of the locking connector of the present application showing a second state of connection of the first connector to the locking member;

FIG. 8 is a schematic view of a second connector of the locking connector of the present application;

FIG. 9 is a cross-sectional view of a second connector of the locking connector of the present application;

fig. 10 is a partially enlarged view of the latching grooves of the second connector of the locking connector of the present application.

Detailed Description

Features and exemplary embodiments of various aspects of the present invention will be described in detail below, and in order to make objects, technical solutions and advantages of the present invention more apparent, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application. It will be apparent to one skilled in the art that the present application may be practiced without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present invention by illustrating the examples of the present application.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

It will be understood that when a layer, region or layer is referred to as being "on" or "over" another layer, region or layer in describing the structure of the component, it can be directly on the other layer, region or layer or intervening layers or regions may also be present. Also, if the component is turned over, one layer or region may be "under" or "beneath" another layer or region.

Locking connector has the problem that first connector and second connector locking back are difficult to separate among the prior art, mainly, can set up the arch in prior art on first connection, sets up the recess on the second connector, at the in-process of two connector locks, can't exert the effort because of the arch easily, leads to unable separation between the connector of locking. If the connector needs to be separated, the protrusion or the groove can be damaged to separate, so that locking cannot be achieved later, and the connector cannot be used. In addition, another locking buckle is arranged in the prior art, an external locking buckle is arranged at a part of the first connector close to the insertion port, and although the problem of difficulty in unlocking can be solved, the locking buckle is arranged outside the connector, so that the external structure of the connector is complicated, the connector is easy to damage, and the connector is easy to unlock by misoperation in the working process, so that the normal working operation is seriously influenced.

To overcome the above problems, the present application provides a lock connector, which includes: the connector comprises a first connector and a second connector matched with the first connector, wherein the first connector comprises a body part and a locking piece arranged on the body part, and the connection state of the locking piece and the body part comprises a first connection state and a second connection state;

or when the connection state of the latch element and the body part is the second connection state, the second connector is matched with the latch element to enable the connection state of the latch element and the body part to be reset to the first connection state, the second connector is fixed with the first connector through the latch element, and when the connection state of the latch element and the body part is converted from the first connection state to the second connection state, the second connector is separated from the latch element. According to the locking device, the locking piece which has two connection states with the first connector is arranged on one side of the first connector, and when the initial state of the locking piece and the initial state of the first connector are the first connection state, the locking function can be realized only by sleeving the second connector outside the first connector to realize the buckling fixation with the locking piece; if the unlocking is needed, the locking fastener is pressed by external force, so that after the locking fastener moves along the direction of gravity, the connection state of the locking fastener and the first connector is changed into a second connection state, and the unlocking separation of the second connector and the first connector can be realized. If the initial state of the locking fastener and the first connector is the second connection state, an external tool is not needed at the moment, the second connector is only required to be sleeved outside the first connector, the connection relation between the locking fastener and the first connector can be reset to the first connection state in the displacement process of the second connector, the locking can be realized by repeating the action when the connection relation between the locking fastener and the first connector is the first connection state, and the connection state between the locking fastener and the first connector can be restored to the second connection state by pressing the locking fastener by external force, so that the unlocking separation of the first connector and the second connector can be realized. The locking and the separation of the first connector and the second connector can be realized only by controlling the connection state of the locking fastener and the first connector, the operation is simple, and the unlocking and locking processes are simple; in addition, the hasp spare carries out the lock with the inside structure of second connector, wraps up the hasp spare inside the second connector, can protect the hasp spare, can ensure again that can not lead to the unblock unusual because of the mistake touches in the working process.

Features and exemplary embodiments of various aspects of the present invention will be described in detail below. Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

Some well-known structures have been shown hidden or transparently in the drawings for the sake of clarity in illustrating the structures associated with the present invention.

The present invention provides a lock connector, comprising: the connector comprises a first connector 1 and a second connector 2 matched with the first connector 1, wherein the first connector 1 comprises a body part 10 and a locking piece 3 arranged on the body part 10, and the connection state of the locking piece 3 and the body part 1 comprises a first connection state and a second connection state;

when the connection state of the locking element 3 and the main body 10 is the first connection state, the second connector 2 is fixed with the first connector 1 through the locking element 3, and then the locking action can be realized;

when the connection state of the locking piece 3 and the main body 10 is switched from the first connection state to the second connection state, the second connector 2 is separated from the locking piece 3, and the unlocking can be realized.

In the above implementation manner, the first connection state is an initial connection state, the second connection state is a state converted from the initial connection state, and specifically, the connection state between the latch member and the first connector after displacement can be converted into the second connection state by external force.

In the present application, when the initial connection state of the locking element 3 and the main body 10 is the second connection state, the second connector 2 is matched with the locking element 3, so that the connection state of the locking element 3 and the main body 10 is reset to the first connection state, and the second connector 2 is fixed with the first connector 1 through the locking element 3, so as to realize locking;

when the connection state of the locking element 3 and the main body 10 is switched from the first connection state to the second connection state, the second connector is separated from the locking element, and the unlocking can be realized.

Specifically, the following explains specific implementations of locking and unlocking in the two connection states by specific embodiments and with reference to the drawings.

As shown in fig. 1 to 6, the first connector 1 includes a main body 10, and a plug-in part 100 disposed at one side of the main body 10, and the first connector 1 further includes side walls 11 disposed at two sides of the main body; the locking element 3 is disposed on the sidewall 11 of the main body 10 and is located at a side away from the inserting portion 100.

The latch member 3 includes a plurality of latch arms 30 and a latch body 31 connecting the plurality of latch arms 30, the plurality of latch arms 30 extend from two ends of the latch body 31 along a first direction, respectively, and each latch arm 30 further includes at least one first position-limiting portion 300; the body portion 10 of the first connector 1 includes two side walls 11, and each of the side walls 11 is provided with at least one second position-limiting portion 110 engaged with at least one first position-limiting portion 300.

The number of the latch arms 30 in this application is two, and the two latch arms are respectively connected to two ends of the latch body 31.

In a preferred embodiment, each of the latch arms 30 of the present application includes a first position-limiting portion 300, and the first position-limiting portions 300 are disposed on a side of the latch arms 30 away from the insertion portion and are arranged along the extending direction of the insertion portion 100. Each of the side walls 11 is provided with a second limiting portion 110, and the second limiting portion is in interference fit with the first limiting portion.

In a preferred embodiment, each of the latch arms 30 of the present application includes two first position-limiting portions 300, and the two first position-limiting portions 300 are respectively disposed on two sides of the latch arm and arranged along the extending direction of the insertion portion 100. Two second limiting parts 110 are respectively arranged on each side wall 11, and the two second limiting parts 110 are arranged at intervals along the extending direction of the insertion part; the second limiting parts are respectively in interference fit with the first limiting parts.

Each of the latch arms 30 is relatively fastened to the side wall 11, and in a direction opposite to the first direction, the first position-limiting portion 300 of the latch arm 30 is located at the second position-limiting portion 110, or the second position-limiting portion 110 is located at the first position-limiting portion 300 of the latch arm 30.

In a preferred embodiment, the main body 10 includes a recess 12 for accommodating the locking element 3, the second limiting portion 110 includes a cantilever 111 connected to the sidewall 11 of the main body 10, and the recess 12 is located between the cantilever 111 and the sidewall 11. The cantilever 111 is formed to extend from a side of the sidewall 11 away from the latch body 31 to a direction opposite to the extending direction of the latch arm 30. The cantilever 111 is opposite to the latch arm 30, the first position-limiting portion 300 includes a first protrusion 301 formed by protruding from the free end of the latch arm 30 to one side of the cantilever 111, and the second position-limiting portion 110 further includes a second protrusion 112 formed by protruding from the free end of the cantilever 111 to one side of the groove 12; the latch arm 30 is located in the recess 12, and in the direction opposite to the first direction, the latch arm 30 is stopped by the first projection 301 at the second projection 112, which restricts the latch arm 30 from being detached from the first connector 1.

The connection relationship between the locking element 3 and the main body 10 is specifically shown in fig. 5-7, where fig. 5-6 illustrate a first connection state of the locking element 3 and the main body 10, specifically, when the initial connection state of the locking element 3 and the main body 10 is the first connection state, the first protrusion 301 of the locking element 3 is disposed close to the second protrusion 112, and in a direction opposite to the first direction, a first distance exists between surfaces of the first protrusion 301 and the second protrusion 112 that interfere with each other; when the first pitch is zero, the surfaces of the first bump 112 and the second bump 301 that interfere with each other are in contact with each other.

Fig. 7 shows that when the connection state of the locking element 3 and the main body 10 is a second connection state, the first protrusion 301 of the locking element 3 is disposed away from the second protrusion 112, and in the first direction, a second distance exists between the surfaces of the first protrusion 301 and the second protrusion 112 that interfere with each other, and the second distance is greater than the first distance. Preferably, when the connection state of the locking element 3 and the main body 10 is the second connection state, the surface of the groove 12 opposite to the locking body 31 contacts with the locking body 31; alternatively, the free end of the cantilever 111 contacts the bottom 302 of the first stopper 300. The outer side of the first position-limiting portion 300 is formed by the outer side of the latch arm 30 being recessed toward the other latch arm, so that there is a height difference between the outer side of the first position-limiting portion and the outer side of the latch arm, and at this time, the bottom 302 is connected to the latch arm close to the latch body, and after the latch member is completely fastened to the body, the free end of the cantilever is in contact with the bottom, or the free end of the latch arm is in contact with the bottom of the groove 12.

In a preferred embodiment, as shown in fig. 2, the present application discloses another buckling relationship between the first position-limiting part 300 and the second position-limiting part 110, specifically, the first position-limiting part 300 includes at least one first through hole 303 penetrating through the latch arm 30, and the second position-limiting part 110 includes at least one third protrusion 113 protruding from the sidewall 11; in the first direction, the first through hole 303 includes a first face 304 and a second face 305 which are oppositely arranged at intervals; the first face 304 is disposed adjacent to the latch body 31 and the second face 305 is disposed adjacent to a side of the free end of the latch arm.

In this application, the first through holes 303 are two and arranged along the extending direction of the inserting part 100, and the third protrusions 113 are two and respectively matched with the first through holes 303.

As shown in fig. 5 to 6, when the connection state of the locking element 3 and the main body 10 is the first connection state, the third protrusion 113 is disposed close to the second surface 305 of the first through hole 303, and a first distance exists between the third protrusion 113 and the second surface 305 in the first direction. Preferably, when the first distance is zero, the third bump 113 and the second surface 305 are in contact with each other.

As shown in fig. 7, when the connection state of the locking element 3 and the main body 10 is the second connection state, the second surface 305 of the first through hole 303 is away from the third protrusion 113, and a second distance exists between the third protrusion 113 and the second surface 305 in the first direction, where the second distance is greater than the first distance. Preferably, when the connection state of the locking element 3 and the main body 10 is the second connection state, the third protrusion 113 and the first surface 305 contact with each other, that is, the connection state of the locking element and the main body is changed into the second connection state.

Of course, the above two embodiments all provide a complete fastening implementation manner, and when the connection relationship between the fastening element and the main body is the second connection state, there may be a state that the fastening element is not completely fastened, as long as the second distance is greater than the first distance.

In addition, in order to ensure the reliability of the assembly between the locking element 3 and the main body 10, a fixing groove 120 is provided on the surface of the main body 10 opposite to the locking element 3, and a guide post 310 matched with the fixing groove 120 is provided on the locking element 3. When the connection state of the locking element and the body part is a first connection state, the free end of the guiding column 310 contacts with the notch of the fixing groove 120; when the connection state of the locking element and the body part is the second connection state, the guiding post 310 is completely inserted into the fixing groove 120, and meanwhile, the guiding post 310 also realizes the guiding function, so that the locking element is prevented from swinging left and right in the process of being matched with the body part, and the matching is more reliable.

The specific structure of catch element 3 will be described in detail below with reference to fig. 1, 3-4, as follows:

the main body 10 of the first connector 1 further includes a mating part 100 located on one side of the main body 10, and the locking element 3 is located on one side of the main body 10 away from the mating part 100. The design makes second connector realize fastening force after fully cooperating with first connector.

The latch member 3 includes two latch arms each extending in a first direction along both ends of the latch body. Each of the latch arms 30 further includes at least one latch portion adjacent to the first stopper portion 300. When the first limiting part is one, the locking part is positioned at one side of the first limiting part close to the inserting part. When the number of the first limiting parts is two, the lock catch part is positioned in the middle of the first limiting part.

Each of the latch portions includes at least one latch block 32 projecting from the latch arm 30. In this application the quantity of hasp piece 32 can be 1 also can be two, and is a plurality of the hasp piece is along first direction is arranged for structural design is exquisite, and is convenient for peg graft.

The present application describes in detail a scheme of two lock blocks, each of the lock arms 30 includes a plurality of first sub-arm portions 306 arranged at intervals along the first direction, each of the lock blocks is disposed on one of the first sub-arm portions 306, and the first sub-arm portions 306 are formed to extend from a side of the lock arm 30 close to the lock body 31 to the first direction. One side of the first sub-arm portion 306 close to the latch body 31 is connected to the latch arm 30, and through holes 307 exist between the other three sides of the first sub-arm portion 306 and the latch arm 30. The free end of the first sub-arm portion 306 is not connected to the latch arm 30, so that the elasticity of the first sub-arm portion 306 can be increased to increase the elasticity of the latch 32, and when the latch 32 is stressed, the latch 32 is easily rebounded. In addition, the free end of the first sub-arm portion 306 of the present application may not be in the cantilever structure as described above, but may be connected to the latch arm.

The side wall 11 of the main body 10 is further provided with a protrusion 114, each of the latch arms includes two first sub-arm portions arranged along the first direction, and each of the first sub-arm portions protrudes with a latch block. When the connection state of the locking element 3 and the main body 10 is the first connection state, the protrusion 114 is located inside the first sub-arm portion near the free end of the locking arm, and plays a supporting role, so that the first sub-arm portion is not deformed when the second connector is mated with the locking element. When the connection state of the locking element 3 and the main body 10 is changed from the first connection state to the second connection state, the first sub-arm portion near the free end of the locking arm is separated from the protrusion 114, and the elastic force is restored, so that the unlocking force can be reduced.

The locking piece 32 includes a top surface 320 opposite to the locking arm 30, a first guide surface 321 connecting a side of the top surface 320 adjacent to the insertion part 100 and the locking arm, and a second guide surface 322 connecting a side of the top surface 320 adjacent to the free end of the locking arm 30 and the locking arm 30;

the first guiding surface 321 is a surface extending from a side of the top surface 320 close to the inserting part 100 to the direction of the inserting part 100;

the second guide surface 322 is a surface extending obliquely from a side of the top surface 320 near the free end of the latch arm 30 toward the free end of the latch arm 30.

The locking block 32 further includes a third guiding surface 323 connecting the second guiding surface 322 to the side of the inserting part 100, the first guiding surface 321 and the locking arm 30, wherein the third guiding surface 323 extends obliquely from the side of the second guiding surface 322 close to the inserting part 100 to the side of the first guiding surface 321 close to the inserting part 100. And a first coupling surface 324 coupling the second and third guide surfaces 322 and 323, the other side of the first coupling surface 324 being coupled to the latching arm 30. The lock catch block 32 further includes a second connecting surface opposite to the first connecting surface, one end of the second connecting surface is connected to the lock catch arm, and the other end is connected to one side of the top surface close to the lock catch body. In the first direction, the first connection surface 324 is disposed opposite to the second connection surface. In addition, in the direction perpendicular to the latch arm 30, the thickness between the side of the first guiding surface 321 close to the inserting part 100 and the latch arm is smaller than the thickness between the side of the first guiding surface 321 far from the inserting part 100 and the latch arm, so that the latch block 32 forms a guiding surface for easily inserting the second connector, which is convenient for inserting.

In order to better describe the mating relationship between the locking member and the second connector, the second connector 2 mated with the first connector 1 will be described in detail with reference to fig. 8 to 10.

The second connector 2 includes a socket 20 and an accommodating space 200 communicated with the socket 20 and used for accommodating the inserting part 100 of the first connector 1, and a plurality of locking grooves 21 matched with the locking elements 3 are arranged on the inner wall surface of one side of the accommodating space 200 close to the socket 20. The locking and separation between the second connector 2 and the first connector 1 can be achieved by the locking grooves 21 cooperating with the locking pieces 3.

In the direction extending from the inserting port 20 to the accommodating space 200, the locking slot 21 includes a first guide slot 210 disposed near the inserting port 20, and a second guide slot 211 connected to the first guide slot 210, a fourth guide surface 212 interfering with the first guide surface 321 is formed on a side of the first guide slot 210 near the second guide slot 211, and an inclined direction of the fourth guide surface 212 is the same as an inclined direction of the first guide surface 321, so as to be matched with the locking block 32 of the first guide surface 321.

The depth of the first guide groove and the second guide groove is greater than or equal to the height of the locking part; when the locking block 32 passes through the fourth guide surface 212 from the first guide groove 210 and then smoothly falls into the second guide groove 211, the second guide groove just fastens and fixes the locking block 32 in the second guide groove, and the locking action can be realized.

A side surface of the second guide groove 211 in the first direction includes a fifth guide surface 213 interfering with the second guide surface 322, and an inclination direction of the fifth guide surface 213 is the same as that of the second guide surface 322; when the locking element 3 is displaced in the first direction, the locking piece 32 is engaged with the fifth guide surface 213 through the second guide surface 322, so that the locking piece 32 of the locking element is separated from the second guide groove 211, and then the second connector can be separated from the first connector by applying an acting force to the second connector, thereby unlocking the locking element.

In a preferred embodiment, in the first direction, the first guide groove further includes a third guide groove 214 connected to the second guide groove 211, a side surface of the second guide groove 211 close to the third guide groove 214 forms a fifth guide surface 213 interfering with the second guide surface 322, and an inclination direction of the fifth guide surface 213 is the same as an inclination direction of the second guide surface 322; the depth of the third guide groove 214 is smaller than 1/2, which is the height of the top surface 321 from the latch arm 30 in the direction perpendicular to the latch arm 30. So design, be convenient for when the hasp piece 3 is to first direction displacement, hasp piece 32 pass through second guide surface 322 with fifth guide surface 213 cooperation back makes hasp piece 32 of hasp piece with second guide way 211 separation later falls into third guide way 214, because the degree of depth of third guide way 214 is less than 1/2 of the height of hasp piece 32 for third guide way 214 is right hasp piece noninterference power, exerts the effort at this moment in the second connector can with the second connector with first connector separation realizes the unblock.

Specifically, when the initial connection state of the latch member 3 and the main body 10 is the first connection state in the process of mating the first connector and the second connector, the second connector 2 is fixed to the first connector 1 through the latch member 3, specifically:

the inserting part 100 of the first connector 1 is inserted into the accommodating space 200 of the second connector 2, the locking block 32 is displaced to a side far away from the inserting port 20 in the first guide groove 210, and after the first guide surface 321 and the fourth guide surface 212 interfere with each other, the locking block falls into the second guide groove 211, the top surface of the locking block contacts with the inner wall surface of the second guide groove, so that the locking block 32 and the second connector 2 are fixed, and the depth of the second guide groove is greater than or equal to the height between the top surface of the locking block and the locking arm, so that the locking can be realized.

When the connection state of the locking element 3 and the main body 10 is switched from the first connection state to the second connection state, the second connector is separated from the locking element, specifically:

at this time, an acting force is applied to press the locking element 3, the connection relationship between the locking element 3 and the main body 10 is switched from the first connection state to the second connection state, the locking block 32 is displaced in the first direction, the second guide surface 322 interferes with the fifth guide surface 213, the locking block 32 is separated from the second guide groove 211, and the second connector 2 is separated from the locking element 3, so that unlocking can be realized. In another embodiment: when the initial connection state of the locking element 3 and the main body 10 is the second connection state, the second connector 2 and the locking element 3 cooperate to restore the connection state of the locking element 3 and the main body 10 to the first connection state, specifically:

a sixth guide surface 215 which is matched with the third guide surface 323 is arranged on one side of the first guide groove 210 close to the inserting port 20, the inserting part 100 of the first connector 1 is inserted into the accommodating space 200 of the second connector 2, the locking block 32 is inserted into the first guide groove 210, the sixth guide surface 215 is contacted with the third guide surface 323 in the displacement process of the second connector 2, and the sixth guide surface 215 provides an acting force opposite to the first direction for the locking block 32 in the processes of contacting and separating the sixth guide surface 215 and the third guide surface 323, so that the connection state of the locking element 3 and the main body 10 is reset to the first connection state;

when the inserting part 100 of the first connector 1 is inserted into the receiving space 200 of the second connector 2, the locking block 32 is displaced in the first guide groove 210 to a side away from the inserting port 20, and after the first guide surface 321 and the fourth guide surface 212 interfere with each other, the locking block falls into the second guide groove 211, the top surface of the locking block contacts with the inner side surface of the second guide groove, so that the locking block 32 is fixed with the second connector 2, that is, locking can be achieved.

at this time, an acting force is applied to press the locking element 3, the connection relationship between the locking element 3 and the main body 10 is switched from the first connection state to the second connection state, the locking block 32 is displaced in the first direction, the second guide surface 322 interferes with the fifth guide surface 213, the locking block 32 is separated from the second guide groove 211, and the second connector 2 is separated from the locking element 3, so that unlocking can be realized.

In accordance with the above embodiments of the present invention, these embodiments are not intended to be exhaustive or to limit the invention to the precise embodiments disclosed. Obviously, many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention and various embodiments with various modifications as are suited to the particular use contemplated. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A lock connector characterized by comprising: the connector comprises a first connector and a second connector matched with the first connector, wherein the first connector comprises a body part and a locking piece arranged on the body part, and the connection state of the locking piece and the body part comprises a first connection state and a second connection state;

or when the connection state of the latch element and the body part is the second connection state, the second connector is matched with the latch element to enable the connection state of the latch element and the body part to be reset to the first connection state, the second connector is fixed with the first connector through the latch element, and when the connection state of the latch element and the body part is converted from the first connection state to the second connection state, the second connector is separated from the latch element.

2. The locking connector of claim 1, wherein: the lock catch piece comprises a plurality of lock catch arms and a lock catch body connected with the lock catch arms, the lock catch arms extend from two ends of the lock catch body along a first direction respectively, and each lock catch arm further comprises at least one first limiting part; the body part of the first connector comprises a side wall, and the side wall is provided with at least one second limiting part matched with at least one first limiting part;

3. The locking connector of claim 2, wherein: the body part comprises a groove for accommodating the lock catch piece, the second limiting part comprises a cantilever connected with the side wall of the body part, and the groove is positioned between the cantilever and the side wall; the first limiting part comprises a first lug which is formed by protruding from the free end of the lock catch arm to one side of the cantilever, and the second limiting part also comprises a second lug which is formed by protruding from the free end of the cantilever to one side of the groove; the lock catch arm is positioned in the groove, and is positioned on the second bump through the first bump in the direction opposite to the first direction;

when the connection state of the lock catch piece and the body part is a first connection state, a first convex block of the lock catch piece is arranged close to a second convex block, and a first distance exists between the surfaces of the first convex block and the second convex block which are mutually interfered in the first direction;

preferably, the first pitch is zero, that is, the first bump and the second bump are in contact with each other at the mutually interfering surfaces;

or when the connection state of the locking part and the body part is a second connection state, the first lug of the locking part is far away from the second lug, and a second distance exists between the surfaces of the first lug and the second lug which are mutually interfered in the first direction, wherein the second distance is larger than the first distance;

preferably, when the connection state of the lock catch piece and the body part is the second connection state, the surface of the groove opposite to the lock catch body is in contact with the lock catch body; or the free end of the cantilever is in contact with the bottom of the first limiting part.

4. The locking connector of claim 2, wherein: the first limiting part comprises at least one first through hole penetrating through the lock catch arm, and the second limiting part comprises at least one third bump protruding on the side wall; in the first direction, the first through hole comprises a first surface and a second surface which are oppositely arranged at intervals; the first surface is arranged close to the lock catch body, and the second surface is arranged close to one side of the free end of the lock catch arm;

when the connection state of the lock catch piece and the body part is a first connection state, the third bump is arranged close to the second surface of the first through hole, and a first distance exists between the third bump and the second surface in the first direction;

preferably, the first distance is zero, that is, the third bump and the second face are in contact with each other;

or when the connection state of the locking fastener and the body part is a second connection state, the second surface of the first through hole is far away from the third bump, and a second distance exists between the third bump and the second surface in the first direction, wherein the second distance is larger than the first distance;

preferably, when the connection state of the locking element and the main body is the second connection state, the third protrusion and the first surface are in contact with each other.

5. Locking connector according to claim 3 or 4, characterized in that: the body part of the first connector also comprises an inserting part positioned on one side of the body part, and the locking fastener is positioned on one side of the body part, which is far away from the inserting part;

the first guide surface is a surface which obliquely extends from one side of the top surface close to the plugging part to the direction of the plugging part;

the second guide surface is a surface extending obliquely from the side of the top surface close to the free end of the latch arm to the direction of the free end of the latch arm.

6. The locking connector of claim 5, wherein: the locking block further comprises a third guide surface which is connected with one side of the second guide surface close to the inserting part, the first guide surface and the locking arm, and the third guide surface extends from one side of the second guide surface close to the inserting part to one side of the first guide surface close to the inserting part in an inclined mode.

7. The locking connector of claim 5, wherein: each lock catch arm comprises a plurality of first sub-arm parts, each lock catch block is arranged on one first sub-arm part, one side, close to the lock catch body, of the first arm part is connected with the lock catch arm, and through holes are formed between the other three side faces of the first sub-arm part and the lock catch arm.

8. The locking connector of claim 6, wherein: the second connector comprises a plug port and an accommodating space which is communicated with the plug port and is used for accommodating the plug part, and a plurality of locking grooves matched with the locking piece are formed in the inner wall surface of one side, close to the plug port, of the accommodating space;

in the direction extending from the inserting port to the accommodating space, the lock catch groove comprises a first guide groove arranged close to the inserting port and a second guide groove connected with the first guide groove, and a fourth guide surface interfering with the first guide surface is formed on one side surface of the first guide groove close to the second guide groove;

a side surface of the second guide groove in the first direction includes a fifth guide surface that interferes with the second guide surface;

or, in the first direction, the first guide groove further comprises a third guide groove connected with the second guide groove, and a side surface of the second guide groove close to the third guide groove forms a fifth guide surface interfering with the second guide surface;

preferably, the depth of the first guide groove and the second guide groove is greater than or equal to the height of the locking part; the depth of the third guide groove is smaller than 1/2 which is the height of the locking portion.

9. The locking connector of claim 8, wherein: when the connection state of the locking piece and the body part is the first connection state, the second connector is fixed with the first connector through the locking piece, and the connection state is specifically as follows:

inserting the insertion part of the first connector into the accommodating space of the second connector, displacing the locking block to one side far away from the insertion port in the first guide groove, and enabling the locking block to fall into the second guide groove after the first guide surface and the fourth guide surface are interfered, so that the locking block and the second connector are fixed;

when the connection state of the locking element and the main body part is converted from the first connection state to the second connection state, the second connector is separated from the locking element, and the method specifically comprises the following steps:

the lock catch piece is pressed to switch the connection relation between the lock catch piece and the body part from a first connection state to a second connection state, the lock catch block is displaced towards the first direction, the second guide surface and the fifth guide surface are interfered, the lock catch block is separated from the second guide groove, and the second connector is separated from the lock catch piece.

10. The locking connector of claim 8, wherein: when the connection state of the locking element and the body part is the second connection state, the second connector is matched with the locking element to ensure that the connection state of the locking element and the body part is reset to the first connection state, and the method specifically comprises the following steps:

a sixth guide surface matched with the third guide surface is arranged on one side, close to the inserting port, of the first guide groove, the inserting part of the first connector is inserted into the accommodating space of the second connector, the lock catch block is inserted into the first guide groove, and the sixth guide surface provides acting force opposite to the first direction for the lock catch block in the processes of contact and separation of the sixth guide surface and the third guide surface, so that the connection state of the lock catch piece and the body part is reset to the first connection state;

the locking block is displaced to one side far away from the inserting port in the first guide groove, and after the first guide surface is interfered with the fourth guide surface, the locking block falls into the second guide groove, so that the locking block and the second connector are fixed;

pressing the lock catch piece to convert the connection relation between the lock catch piece and the body part from a first connection state to a second connection state; the locking piece is displaced along the first direction, and the second guide surface and the fifth guide surface are interfered, so that the locking piece is separated from the second guide groove, and the second connector is separated from the locking piece.