Screw type plug connector

Abstract

The utility model relates to a screw type plug connector, which comprises a first plug body and a second plug body which are assembled and matched, the second plug body is provided with a lock catch button piece, a pressing part of the lock catch button piece is arranged above a screw hole of a second shell, and a fixing part of the lock catch button piece is fixed on the second shell. The two ends of an elastic cantilever of the lock catch button piece are connected with the pressing part and the fixing part respectively, the elastic cantilever generates elastic deformation after being pressed, and a first shell of the first inserting body and the elastic cantilever of the lock catch button piece are buckled and fixed through a buckle matching structure. The buckle matching structure releases the buckle fixing state along with downward movement generated after the elastic cantilever deforms under stress. The assembly of the connector can be realized only by oppositely inserting the two inserting bodies; and downward pressing force is applied to the pressing part of the lock catch button piece, so that the elastic cantilever deforms and then is released from the buckling fixation with the first shell of the first plug-in body, and the disassembly operation of the assembled connector is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of connector, especially screw type plug connector. BACKGROUND

[0002] As electrical connecting pieces for current or signal transmission, plug-in connectors are mainly applied to high-tech industries such as transportation, communication, network, medical treatment and household appliances, which have very high requirements for the connection reliability of plug-in connector products themselves.

[0003] The existing plug-in connector structure mainly consists of a socket and a plug. In the use process, the socket is first welded on the printed circuit board, and then the plug is inserted into the socket to realize the quick connection of the circuit. In order to enable the plug-in connector to adapt to various working conditions, prevent the socket and the plug from loosening or falling off during the working process, and affect the normal operation of the equipment, some existing plug-in connector structures are designed with a lock button.

[0004] However, the plug-in connector with the lock button has the following deficiencies: when the lock button structure is installed on the connector, it needs to occupy a large size space in the product P distance (i.e. the distance between the lines) direction, resulting in the large packaging size of the connector product. SUMMARY

[0005] The utility model solves the technical problem of the prior art, and provides a screw type plug connector which can realize the lock button function without occupying the space in the P distance direction of the connector.

[0006] The utility model adopts the technical scheme that the screw type plug connector comprises:

[0007] The first plug-in body has a first shell.

[0008] The second plug-in body is assembled and cooperated with the first plug-in body, and has a second shell.

[0009] The utility model is characterized in that it further comprises a lock button piece arranged on the second plug-in body, wherein the lock button piece has:

[0010] The pressing part is arranged above the screw hole of the second shell and has a variable height difference with the screw hole.

[0011] The fixing part is arranged on the second shell.

[0012] The elastic cantilever has a first end connected to the fixing part and a second end connected to the pressing part, wherein the elastic cantilever is configured to be elastically deformed under pressure;

[0013] The first shell of the first plug-in body and the elastic cantilever of the locking button piece are buckled and fixed through the buckling fitting structure, and the buckling fitting structure is configured to be released from the buckled and fixed state when the elastic cantilever is forced to be deformed downward.

[0014] In the improved screw type plug-in connector, a first buckling part is arranged on the inner side wall of the first shell of the first plug-in body, a second buckling part is arranged on the elastic cantilever of the locking button piece, and the first buckling part and the second buckling part are buckled and fitted with each other to form the buckling fitting structure.

[0015] Further, in the screw type plug-in connector, the elastic cantilever is an elastic inclined plate, the low end of the inclined plate is close to the fixing part, and the high end of the inclined plate is close to the pressing part.

[0016] Further, in the screw type plug-in connector, the second buckling part is a buckling piece, and the first buckling part has a card slot for buckling the buckling piece.

[0017] In the improved screw type plug-in connector, a buckling fixing structure is arranged on the second shell of the second plug-in body, and the fixing part of the locking button piece is buckled at the buckling fixing structure.

[0018] Further improvement, in the screw type plug-in connector, the pressing part of the locking button piece is connected with the elastic cantilever through a vertical segment, the vertical segment is provided with a limiting structure, and the second shell of the second plug-in body is provided with a limiting buckle matched with the limiting structure to limit the upward movement of the pressing part along with the elastic cantilever.

[0019] Further, in the screw type plug-in connector, the fixing part is formed with an opening located directly above the screw hole, and the aperture of the opening is larger than the aperture of the screw hole.

[0020] Further improvement, in the screw type plug-in connector, the locking button piece has a Z-shaped structure.

[0021] Compared with the prior art, the screw type plug-in connector has the advantages that: in the screw type plug-in connector, the locking button piece is arranged on the second plug-in body, the pressing part of the locking button piece is arranged above the screw hole of the second shell, no space in the connector P direction is occupied, the fixed part of the locking button piece is fixed to the second shell, the elastic cantilever of the locking button piece is connected with the pressing part and the fixed part respectively, the elastic cantilever is configured to be elastically deformed after being pressed, the first shell of the first plug-in body and the elastic cantilever of the locking button piece are buckled and fixed through the buckle fitting structure, and the buckle fitting structure is configured to be released from the buckled and fixed state after being moved downward due to the elastic deformation of the elastic cantilever. In this way, the two plug-in bodies are only plugged in, and the buckle fitting of the first shell of the first plug-in body and the elastic cantilever of the locking button piece can realize the assembly of the connector; and the pressing part of the locking button piece is pressed downward, so that the elastic cantilever is deformed to release the buckle fixing with the first shell of the first plug-in body, and the disassembly operation of the assembled connector is realized. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a schematic diagram of the screw type plug-in connector in the embodiment of the utility model;

[0023] Figure 2 It is Figure 1 It is a schematic diagram of two plug-in connecting bodies of the screw type plug-in connector shown in the embodiment of the utility model;

[0024] Figure 3 It is a main structure exploded view of the second plug-in body;

[0025] Figure 4 It is a structure schematic diagram of the locking button piece;

[0026] Figure 5 It is a sectional view of the first plug-in body;

[0027] Figure 6 It is a sectional view of the corresponding state after the two plug-in connecting bodies are assembled. DETAILED DESCRIPTION

[0028] The utility model will be further described in detail in combination with the embodiment of the drawings.

[0029] The embodiment provides a screw type plug-in connector. Specifically, referring to Figures 1-6As shown, the screw type plug-in connector of the embodiment includes a first plug-in body 1 and a second plug-in body 2, the second plug-in body 2 is assembled with the first plug-in body 1, here the first plug-in body 1 is a plug, and the second plug-in body 2 is a socket, the first plug-in body 1 has a first shell 10, and the second plug-in body 2 has a second shell 20, the upper part of the second shell 20 is formed with a screw hole 200, the screw hole 200 is in communication with the inner side of the second shell 20, the inner side of the second shell 20 is provided with a current-carrying body 3, and the screw hole 200 is detachably provided with a screw 201 configured to connect the current-carrying body 3; and the second plug-in body 2 is also provided with a lock button piece 4. Among them, in this embodiment, the lock button piece 4 has a pressing part 41, a fixed part 42 and an elastic cantilever 43, the pressing part 41 is configured to be movably located above the screw hole 200 of the second shell 20 and has a variable height difference with the screw hole 200; the fixed part 42 is configured to be fixed to the second shell 20; the first end of the elastic cantilever 43 is connected to the fixed part 42, and the second end of the elastic cantilever 43 is connected to the pressing part 41; wherein the elastic cantilever 43 is configured to elastically deform under pressure; wherein the first shell 10 of the first plug-in body 1 and the elastic cantilever 43 of the lock button piece 4 are buckled and fixed through a buckle fitting structure, and the buckle fitting structure is configured to be released from the buckled and fixed state after the elastic cantilever is forced to deform downward.

[0030] In the screw type plug-in connector of the embodiment, when the first plug-in body and the second plug-in body are inserted, the first shell of the first plug-in body and the elastic cantilever of the lock button piece are buckled and fixed through the buckle fitting structure. Once it is necessary to separate the first plug-in body and the second plug-in body, a pressing force is applied to the pressing part of the lock button piece towards the screw hole, because the pressing part has a height difference with the screw hole, the pressing part moves downward after being pressed, and the elastic cantilever of the lock button piece also elastically deforms downward, so that the elastic cantilever of the lock button piece is released from the buckled and fixed state with the first shell of the first plug-in body, so that there is no structure to prevent the separation of the first plug-in body and the second plug-in body, and the separation operation between the two plug-in bodies can be easily completed.

[0031] As the buckle fixing mode between the first shell of the first plug-in body and the elastic cantilever of the lock button piece, in this embodiment, referring to Figures 2-5 As shown, the inner side wall of the first shell 10 of the first plug-in body 1 is provided with a first buckle part 11, and the elastic cantilever 43 of the lock button piece 4 is provided with a second buckle part 431, the first buckle part 11 and the second buckle part 431 are buckled and fitted with each other to form the buckle fitting structure. For example, the first buckle part 11 is a clamping groove, and the second buckle part 431 is a buckle piece fitted into the clamping groove.

[0032] As the structure form of the elastic cantilever, refer to Figure 3 and Figure 4 As shown in the figure, the elastic cantilever 43 here is an elastic inclined plate, the low end 43a of which is close to the fixed part 42, and the high end 43b of which is close to the pressing part 41. In this way, the elastic cantilever is connected to the pressing part of the lock button piece in an inclined manner. As long as the pressing part moves downward due to the pressing force, the elastic cantilever can produce elastic deformation towards the lower side, and then contact the buckle fixing state between the elastic cantilever and the first shell of the second plug-in body.

[0033] As the setting mode of the elastic cantilever on the second shell of the second plug-in body 2, refer to Figures 2-4 As shown in the figure, in this embodiment, the second shell 20 of the second plug-in body 2 is provided with a buckle fixing structure 201', and the fixed part 42 of the lock button piece 4 is buckled at the buckle fixing structure 201'. For example, the buckle fixing structure 201' can be in the form of a clamping groove.

[0034] Again refer to Figures 2-5 As shown in the figure, in the screw type plug-in connector of this embodiment, the pressing part 41 of the lock button piece 4 is connected with the elastic cantilever 43 through the vertical segment 44, which is provided with a limiting structure 441, and the second shell 20 of the second plug-in body 2 is provided with a limiting buckle 202 cooperating with the limiting structure 441 to limit the upward movement amplitude of the pressing part 41 along with the elastic cantilever.

[0035] As the preferred structure form of the lock button piece, in this embodiment, the pressing part 41, the fixed part 42, the elastic cantilever 43 and the vertical segment 44 are all in an integrated structure. Moreover, the lock button piece 4 is in a Z-shaped structure as a whole.

[0036] In order to facilitate the tightening or loosening of the screw in the screw hole by using a tool, in this embodiment, the fixed part 42 of the lock button is formed with an opening 420, which is located directly above the screw hole 200 and has a hole diameter larger than that of the screw hole 200. In this way, the rotating end of the tool can be inserted into the screw hole below through the opening of the fixed part to tighten or loosen the screw in the screw hole.

[0037] Although the preferred embodiments of the utility model have been described in detail above, it should be clearly understood that the utility model can have various changes and variations for those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A screw type plug connector, comprising: a first plug body (1) having a first housing (10); a second plug body (2) assembled with the first plug body (1), the second plug body (2) having a second housing (20), an upper portion of the second housing (20) being formed with a screw hole (200) in communication with an inner side of the second housing (20), the inner side of the second housing (20) being provided with a current-carrying body (3), and the screw hole (200) being detachably provided with a screw (201) configured to connect the current-carrying body (3); characterized in that further comprising a locking button piece (4) provided on the second plug body (2); wherein the locking button piece (4) has: a pressing portion (41) configured to be movably located above the screw hole (200) of the second housing (20) and have a variable height difference with the screw hole (200); a fixing portion (42) configured to be fixed to the second housing (20); an elastic cantilever (43) having a first end connected to the fixing portion (42) and a second end connected to the pressing portion (41); wherein the elastic cantilever (43) is configured to be elastically deformed under pressure; wherein the first housing (10) of the first plug body (1) and the elastic cantilever (43) of the locking button piece (4) are snap-fitted through a snap-fit structure, and the snap-fit structure is configured to be released from the snap-fitted state when the elastic cantilever is moved downward after being elastically deformed under force.

2. The screw-type plug connector according to claim 1, characterized in that The inner side wall of the first housing (10) of the first plug body (1) is provided with a first snap portion (11), and the elastic cantilever (43) of the locking button piece (4) is provided with a second snap portion (431), the first snap portion (11) and the second snap portion (431) are snap-fitted with each other to form the snap-fit structure.

3. The screw-type plug connector according to claim 2, characterized in that The elastic cantilever (43) is an elastic inclined plate, the low end of the inclined plate is close to the fixing portion (42), and the high end of the inclined plate is close to the pressing portion (41).

4. The screw-type plug connector according to claim 3, characterized in that The second snap portion (431) is a snap piece, and the first snap portion (11) has a card slot into which the snap piece is fitted.

5. The screw-type plug connector according to claim 1, characterized in that The second housing (20) of the second plug body (2) is provided with a snap fixing structure (201'), and the fixing portion (42) of the locking button piece (4) is snap-fitted at the snap fixing structure (201').

6. The screw-type plug connector according to any one of claims 1 to 5, characterized in that The pressing portion (41) and the elastic cantilever (43) of the locking button piece (4) are connected through a vertical segment (44), the vertical segment (44) is provided with a limiting structure (441), and the second housing (20) of the second plug body (2) is provided with a limiting buckle (202) cooperating with the limiting structure (441) to limit the upward movement amplitude of the pressing portion (41) along with the elastic cantilever.

7. The screw-type plug connector according to claim 6, characterized in that The fixing portion (42) is formed with an opening (420) located directly above the screw hole (200), and the aperture of the opening (420) is larger than the aperture of the screw hole (200).

8. The screw-type plug connector according to any one of claims 1 to 5, characterized in that The locking button piece (4) has a Z-shaped structure.

Images