Cable flame-retardant butt joint male and female plug

Abstract

The utility model discloses a cable flame-retardant butt joint male and female plug, and relates to the technical field of cable male and female plugs. The plug comprises a female plug and a male plug, a plurality of lock catches are circumferentially arrayed on the side portion of one end of the female plug, lock holes are formed in the side portions of the lock catches, positioning pins corresponding to the lock catches are radially and elastically matched with the side portion of one end of the male plug in a sliding mode, and an extrusion ring used for extruding the positioning pins to slide is axially matched with the male plug in a sliding mode. When the male plug is in butt joint with the female plug, the positioning pin extrudes the lock catch, so that the positioning pin is elastically clamped into the lock hole, the male plug can be quickly positioned on the female plug, the extrusion ring is pushed to slide, the extrusion ring extrudes the positioning pin to retract into the male plug, the limit of the positioning pin to the lock catch is relieved, and the male plug can be quickly pulled out.

Description

Technical Field

[0001] The utility model belongs to the field of cable male and female plugs, and specifically relates to a flame-retardant butt joint male and female plug for cables. Background Art

[0002] After the cable is laid, in order to make it a continuous line, each section of the wire must be connected into a whole, and these connection points are called cable joints.

[0003] A Chinese patent with the publication number CN204651869U discloses a cable joint, which includes a plug socket and a socket. A convex column is provided on the end face of the plug socket, and a mounting hole matching the convex column is provided on the socket. The convex column can be inserted into the mounting hole. A locking block is provided on the outer peripheral surface of the plug socket, and a locking buckle matching the locking block is provided on the outer peripheral surface of the socket. When the above cable joint is connected, first insert the convex column into the mounting hole for position fixation, and then lock the locking buckle on the locking block so that the locking buckle and the locking block fit firmly, avoiding loosening of the plug socket and the socket due to pulling or vibration, ensuring the mechanical strength of the cable joint connection, and also ensuring the rapidity of cable connection, greatly reducing the workload of cable connection and cutting, and avoiding faults such as cable joint loosening, poor contact, poor insulation and even wire breakage. It has good sealing performance. However, for the above cable joint, the locking block on the upper side of the plug socket presses and clamps into the locking hole on the locking buckle. Although the insertion is convenient, it is more laborious to pull out. Multiple locking buckles need to be manually toggled at the same time to release the limit between the locking block and the locking buckle, and the disassembly efficiency is low.

[0004] In view of this, the present utility model is specifically proposed. Summary of the Utility Model

[0005] The technical problem to be solved by the present utility model is to overcome the deficiencies of the prior art and provide a flame-retardant butt joint male and female plug for cables.

[0006] To solve the above technical problem, the basic concept of the technical solution adopted by the present utility model is:

[0007] A flame-retardant butt joint male and female plug for cables includes a female plug and a male plug. A plurality of locking buckles are circumferentially arrayed on the side of one end of the female plug, and a locking hole is provided on the side of the locking buckle. A positioning pin corresponding to the locking buckle is elastically slidably matched in the radial direction on the side of one end of the male plug, and a pressing ring for pressing a plurality of positioning pins to slide is axially slidably matched on the male plug.

[0008] Optionally, a first pressing inclined surface is provided on the side of the positioning pin close to the locking buckle, and a second pressing inclined surface is provided on the side of the positioning pin close to the pressing ring.

[0009] Optionally, an installation groove corresponding to the positioning pin is provided on the side of the male plug. The positioning pin is slidably fitted in the installation groove. A spring is fixed between the inner wall of the installation groove and the positioning pin. Two telescopic cylinders are provided between the inner wall of the installation groove and the positioning pin. The telescopic cylinder includes a guide cylinder fixed on the inner wall of the installation groove and a guide rod fixed on one side of the positioning pin. One end of the guide rod is slidably fitted in the guide cylinder.

[0010] Optionally, a notch is provided on the side of the positioning pin away from the male plug. One end of the positioning pin extending out of the installation groove has two symmetrical right trapezoidal structures.

[0011] Optionally, a plurality of guide grooves are provided on the side of the male plug in the axial direction. Guide protrusions corresponding to the guide grooves are provided on the inner wall of the extrusion ring. The guide protrusions are slidably fitted in the guide grooves.

[0012] Optionally, a threaded ring threadedly engaged with the male plug is rotatably fitted at one end of the extrusion ring away from the positioning pin. A plurality of anti-slip protrusions are circumferentially arranged on the side of the threaded ring.

[0013] After adopting the above technical solutions, the present utility model has the following beneficial effects compared with the prior art. Of course, any product implementing the present utility model does not necessarily need to achieve all the advantages described below at the same time:

[0014] When the male plug is docked with the female plug, the positioning pin presses the lock catch, so that the positioning pin elastically snaps into the lock hole, facilitating the quick positioning of the male plug on the female plug. Push the extrusion ring to slide, so that the extrusion ring presses the positioning pin to retract the male plug, releasing the limit of the positioning pin on the lock catch, facilitating the quick removal of the male plug.

[0015] The following further describes in detail the specific implementation manners of the present utility model with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings in the description are only some embodiments. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0017] Figure 1 is a schematic three-dimensional structure diagram of an embodiment of the present utility model;

[0018] Figure 2 is a schematic cross-sectional structure diagram of an embodiment of the present utility model;

[0019] Figure 3 is a schematic cross-sectional structure diagram of the male plug of an embodiment of the present utility model;

[0020] In the drawings, the list of components represented by each reference numeral is as follows:

[0021] Female plug 1, lock 101, lock hole 102, male plug 2, positioning pin 201, extrusion ring 202, first extrusion inclined surface 203, second extrusion inclined surface 204, installation groove 205, spring 206, telescopic cylinder 207, guiding cylinder 2071, guiding rod 2072, notch 208, threaded ring 209.

[0022] It should be noted that these drawings and text descriptions are not intended to limit the scope of the concept of the present utility model in any way, but to illustrate the concept of the present utility model to those skilled in the art by referring to specific embodiments. Detailed implementation manners

[0023] Now, the present utility model will be further described in detail with reference to the drawings.

[0024] Please refer to Figures 1-3 As shown, in this embodiment, a cable flame-retardant docking male and female plug is provided, including a female plug 1 and a male plug 2. A plurality of locks 101 are circumferentially arranged in an array on the side of one end of the female plug 1, and a lock hole 102 is provided on the side of the lock 101. A positioning pin 201 corresponding to the lock 101 is elastically slidably fitted in the radial direction on the side of one end of the male plug 2, and an extrusion ring 202 for extruding the plurality of positioning pins 201 to slide is axially slidably fitted on the male plug 2.

[0025] The plastics injection-molded on the outer sides of the female plug 1 and the male plug 2 are both flame-retardant plastics, reducing the probability of combustion damage of the female plug 1 and the male plug 2.

[0026] When the male plug 2 is docked with the female plug 1, the positioning pin 201 presses the lock 101, so that the positioning pin 201 is elastically snapped into the lock hole 102, facilitating the rapid positioning of the male plug 2 on the female plug 1. By pushing the extrusion ring 202 to slide, the extrusion ring 202 presses the positioning pin 201 to retract into the male plug 2, releasing the limit of the positioning pin 201 on the lock 101, facilitating the rapid removal of the male plug 2.

[0027] Please refer to Figures 2-3 As shown, on the side of the positioning pin 201 close to the lock 101, a first extrusion inclined surface 203 is provided, and on the side of the positioning pin 201 close to the extrusion ring 202, a second extrusion inclined surface 204 is provided. When the male plug 2 is docked with the female plug 1, the positioning pin 201 presses the lock 101 through the first extrusion inclined surface 203, so that the positioning pin 201 is elastically snapped into the lock hole 102, and the extrusion ring 202 presses the second extrusion inclined surface 204, driving the positioning pin 201 to retract into the installation groove 205.

[0028] Please refer to Figures 2-3As shown in the figure, on the side of the male plug 2 of this embodiment, there is an installation groove 205 corresponding to the positioning pin 201. The positioning pin 201 is slidably fitted in the installation groove 205. A spring 206 is fixed between the inner wall of the installation groove 205 and the positioning pin 201. There are two telescopic cylinders 207 between the inner wall of the installation groove 205 and the positioning pin 201. The telescopic cylinder 207 includes a guiding cylinder 2071 fixed on the inner wall of the installation groove 205 and a guiding rod 2072 fixed on one side of the positioning pin 201. One end of the guiding rod 2072 is slidably fitted in the guiding cylinder 2071, which facilitates the elastic sliding of the positioning pin 201 through the spring 206 and improves the sliding stability of the positioning pin 201 through the telescopic cylinder 207.

[0029] Please refer to Figure 3 As shown in the figure, on the side of the positioning pin 201 away from the male plug 2 of this embodiment, there is a notch 208. One end of the positioning pin 201 extending out of the installation groove 205 has two symmetrical right trapezoidal structures, which facilitates the positioning pin 201 to be inserted into the locking hole 102 and improves the limiting stability of the positioning pin 201 to the female plug 1.

[0030] Please refer to Figures 2-3 As shown in the figure, on the side of the male plug 2 of this embodiment, there are a plurality of guiding grooves along the axial direction. On the inner wall of the extrusion ring 202, there are guiding protrusions corresponding to the guiding grooves. The guiding protrusions are slidably fitted in the guiding grooves, which facilitates the sliding fit of the guiding protrusions in the guiding grooves and improves the sliding stability of the extrusion ring 202 along the axial direction of the male plug 2.

[0031] Please refer to Figure 3 As shown in the figure, a threaded ring 209 that is threadedly engaged with the male plug 2 is rotatably fitted at one end of the extrusion ring 202 away from the positioning pin 201. A plurality of anti-slip protrusions are circumferentially arranged on the side of the threaded ring 209, which facilitates the sliding of the extrusion ring 202 by rotating the threaded ring 209. By providing the threaded ring 209, it is convenient to keep the positioning pin 201 in the state of being retracted into the installation groove 205 and facilitate the removal of the male plug 2. A bearing is fixedly sleeved at one end of the extrusion ring 202, and the threaded ring 209 is fixedly sleeved on the bearing, which facilitates the improvement of the rotational fit stability of the threaded ring 209 on the extrusion ring 202.

[0032] Working principle: When the male plug 2 is docked with the female plug 1, the positioning pin 201 presses the locking buckle 101 through the first extrusion inclined surface 203, so that the positioning pin 201 is elastically inserted into the locking hole 102, which facilitates the quick positioning of the male plug 2 on the female plug 1. Rotate the threaded ring 209 to push the extrusion ring 202 to slide, so that the extrusion ring 202 presses the second extrusion inclined surface 204, driving the positioning pin 201 to retract into the installation groove 205, releasing the limit of the positioning pin 201 on the locking buckle 101, which facilitates the quick removal of the male plug 2. By providing the threaded ring 209, it is convenient to keep the positioning pin 201 in the state of being retracted into the installation groove 205 and facilitate the removal of the male plug 2.

[0033] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. All the electrical appliances within the present utility model are powered by an external power source or a built-in battery. All the electrical appliances within the present utility model are not limited to the model and specific type. Those skilled in the art can clearly use the applicable electrical appliance model, specific type and the power supply mode of the electrical appliance according to the common knowledge in the art.

[0034] The present utility model is not limited to the above-mentioned embodiments. Anyone should know that the structural changes made under the inspiration of the present utility model, as long as they have the same or similar technical solutions as the present utility model, all fall within the protection scope of the present utility model. The technologies, shapes and structures not described in detail in the present utility model are all well-known technologies.

Claims

1. A flame-retardant cable docking male and female plug, characterized in that, Including: A female plug (1) and a male plug (2). A plurality of latches (101) are circumferentially arrayed on the side of one end of the female plug (1). A locking hole (102) is provided on the side of the latch (101). A positioning pin (201) corresponding to the latch (101) is elastically and slidably fitted in the radial direction on the side of one end of the male plug (2). An extrusion ring (202) for extruding the sliding of a plurality of positioning pins (201) is axially slidably fitted on the male plug (2).

2. The male and female plug for flame-retardant butt joint of a cable according to claim 1, wherein A first extrusion inclined surface (203) is provided on the side of the positioning pin (201) close to the latch (101), and a second extrusion inclined surface (204) is provided on the side of the positioning pin (201) close to the extrusion ring (202).

3. A cable flame-retardant butt male and female plug according to claim 1, characterized in that, An installation groove (205) corresponding to the positioning pin (201) is provided on the side of the male plug (2), and the positioning pin (201) is slidably fitted in the installation groove (205).

4. A cable flame-retardant butt male and female plug according to claim 3, characterized in that, A spring (206) is fixed between the inner wall of the installation groove (205) and the positioning pin (201), and two telescopic cylinders (207) are provided between the inner wall of the installation groove (205) and the positioning pin (201).

5. The male and female plug for flame-retardant butt joint of a cable according to claim 4, wherein, The telescopic cylinder (207) includes a guide cylinder (2071) fixed to the inner wall of the installation groove (205) and a guide rod (2072) fixed to one side of the positioning pin (201). One end of the guide rod (2072) is slidably fitted in the guide cylinder (2071).

6. The male and female plug for flame-retardant butt joint of a cable according to claim 3, characterized in that, A notch (208) is provided on the side of the positioning pin (201) away from the male plug (2), and one end of the positioning pin (201) extending out of the installation groove (205) is of two symmetric right trapezoidal structures.

7. A cable flame-retardant docking male and female plug according to claim 1, characterized in that, A plurality of guide grooves are provided on the side of the male plug (2) in the axial direction. Guide protrusions corresponding to the guide grooves are provided on the inner wall of the extrusion ring (202), and the guide protrusions are slidably fitted in the guide grooves.

8. A cable flame-retardant docking male and female plug according to claim 1, characterized in that, A threaded ring (209) threadedly engaged with the male plug (2) is rotatably fitted at one end of the extrusion ring (202) away from the positioning pin (201), and a plurality of anti-slip protrusions are circumferentially arrayed on the side of the threaded ring (209).

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