Single pole plug

Abstract

The utility model belongs to the technical field of single-pole power connectors, and in particular relates to a single-pole plug, comprising a male head, a female head, a male head protection shell and a female head protection shell, wherein the male head protection shell is sleeved on the male head, and one end of the male head protection shell is communicated with the male head connection end, a plurality of positioning protrusions are arranged on the side of the male head protection shell, the female head protection shell is sleeved on the female head, one end of the female head protection shell is communicated with the female head connection end, a plurality of L-shaped limiting holes are opened at the other end of the female head protection shell, one end of the L-shaped limiting hole is opened at the end of the female head protection shell, the end of the male head protection shell can be sleeved on one end of the female head protection shell, and each of the positioning protrusions is respectively engaged with each of the L-shaped limiting holes, the male head is connected to the female head, and the stability of the connection between the male head and the female head is achieved through the above structure.

Description

Technical Field

[0001] The utility model belongs to the technical field of monopolar power connectors, in particular to a monopolar plug. Background Art

[0002] The connectors used in many factories, power transmission and distribution equipment, various mechanical manufacturing equipment and various mobile power supply equipment are connected by directly plugging in plugs and sockets or plugs and plugs, without plug-in locking protection devices. After the connectors are plugged in, it is easy to cause various transmission and distribution cables to loosen, thereby causing various electrical faults and safety accidents such as phase loss, phase failure, zero failure, virtual connection, leakage, etc. in various equipment, affecting the normal operation of various equipment and other related equipment, and posing certain safety hazards. In the prior art, for the connection between the male and female heads of a single-pole plug, a sleeve clamp is set on the connection end to achieve the connection and fixation between the male and female heads to avoid easy falling off. However, the male and female head connection structure of the single-pole plug in the prior art has the technical problem of falling off when subjected to a certain external force. Utility Model Content

[0003] The utility model aims to provide a monopolar plug, aiming to solve the technical problem that the monopolar plug in the prior art is easy to fall off under force.

[0004] To achieve the above-mentioned purpose, an embodiment of the utility model provides a single-pole plug, including a male head, a female head, a male head protective shell and a female head protective shell, the male head protective shell is sleeved on the male head, and one end of the male head protective shell is communicated with the male head connecting end, a plurality of positioning protrusions are arranged on the side of the male head protective shell, the female head protective shell is sleeved on the female head, one end of the female head protective shell is communicated with the female head connecting end, and a plurality of L-shaped limiting holes are opened at the other end of the female head protective shell, one end of the L-shaped limiting hole is opened at the end of the female head protective shell, the end of the male head protective shell can be sleeved on one end of the female head protective shell, and each of the positioning protrusions is respectively engaged with each of the L-shaped limiting holes, and the male head is connected to the female head.

[0005] Preferably, the L-shaped limiting hole includes a guide hole and a locking hole, one end of the guide hole is connected to the end of the male head protective shell, one end of the locking hole is connected to the other end of the guide hole, and the guide hole is arranged parallel to the end edge of the male head protective shell, and the positioning protrusion passes through the guide hole and is engaged with the locking hole.

[0006] Preferably, the guide hole is arranged perpendicular to the end edge of the male head protection shell, and the locking hole is arranged perpendicular to the guide hole.

[0007] Preferably, a limiting protrusion is provided on the inner side surface of the locking hole close to the end of the male head protection shell.

[0008] Preferably, the male head protective shell includes a male head wiring protective cover and a male head sleeve, the L-shaped limiting hole is arranged on the male head sleeve, one end of the female head protective shell is sleeved in the male head sleeve, the male head sleeve is sleeved on the male head, and one end of the male head is located in the male head sleeve, the male head wiring protective cover is clamped with one end of the male head sleeve, and the wiring terminal of the male head is located in the male head wiring protective cover.

[0009] Preferably, a plurality of first locking holes are provided on the side surface of the male sleeve, and the male wiring protection cover and the first locking holes are mutually locked.

[0010] Preferably, a plurality of first clamping pieces are provided at one end of the male terminal wiring protection cover, and the first clamping pieces and the first clamping holes are clamped with each other.

[0011] Preferably, the female head protective shell includes a female head wiring protective cover and a female head sleeve, the positioning protrusion is arranged on the outer wall of the female head sleeve, one end of the female head protective shell is sleeved on the end of the male head protective shell, and the male head is connected with the female head through the female head sleeve, the female head sleeve is sleeved on the female head, the female head wiring protective cover is clamped with one end of the female head sleeve, and the wiring terminal of the female head is located in the female head wiring protective cover.

[0012] Preferably, a plurality of second locking holes are provided on the side surface of the female connector sleeve, and the female connector wiring protection cover and the second locking holes are mutually locked.

[0013] Preferably, a plurality of second clamping pieces are provided at one end of the female connector wiring protection cover, and the second clamping pieces are clamped with the second clamping holes.

[0014] The above one or more technical solutions in the monopolar plug provided by the embodiment of the utility model have at least one of the following technical effects:

[0015] The single-pole plug in the utility model is assembled by a male head, a female head, a male head protection shell and a female head protection shell, wherein the male head protection shell and the female head protection shell are mutually clamped to realize connection. During assembly, the male head and the female head are respectively installed in the male head protection shell and the female head protection shell, and the two ends of the male head are respectively connected to the two ends of the male head protection shell, the female head is arranged in the female head protection shell, and the wiring terminal of the female head is connected to one end of the female head protection shell, and a plurality of positioning protrusions are arranged at intervals on the outer side of the male head protection shell, and at least one positioning protrusion is arranged, and an L-shaped limiting hole is correspondingly opened on the outer side of the female head protection shell, so as to fix the female head protection shell The locking cam of the male connector is locked in place by the locking cam, so that the locking cam and the locking cam are locked together and the locking cam can be locked together. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0017] Figure 1 This is a rendering of the single-pole plug provided in an embodiment of the utility model.

[0018] Figure 2 A cross-sectional view of a single-pole plug provided in an embodiment of the utility model.

[0019] Figure 3 This is a rendering of the female end of a single-pole plug provided in an embodiment of the utility model.

[0020] Figure 4 This is a rendering of the male end of a single-pole plug provided in an embodiment of the utility model.

[0021] Among them, the reference numerals in the figure are:

[0022] 10-male 20-female 30-male protective housing

[0023] 31 - male wiring protective sleeve 32 - male sleeve 40 - female protective shell

[0024] 41—Female wiring protection cover 42—Female sleeve 50—L-shaped limit hole

[0025] 51 - guide hole 52 - positioning hole 60 - positioning protrusion

[0026] 311—first clamping piece 321—first clamping hole 411—second clamping piece

[0027] 421—Second positioning hole. DETAILED DESCRIPTION

[0028] The following describes the embodiments of the present invention in detail. Figures 1 to 4 , wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the embodiments of the utility model, and should not be construed as limiting the utility model.

[0029] In the description of the embodiments of the present invention, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0030] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the embodiments of the present utility model, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0031] In the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.

[0032] In one embodiment of the present invention, Figures 1 to 4As shown, a single-pole plug is provided, including a male connector 10, a female connector 20, a male connector protective shell 30 and a female connector protective shell 40. The male connector protective shell 30 is sleeved on the male connector 10, and one end of the male connector protective shell 30 is communicated with the connecting end of the male connector 10. A plurality of positioning protrusions 60 are arranged on the side of the male connector protective shell 30. The female connector protective shell 40 is sleeved on the female connector 20, and one end of the female connector protective shell 40 is communicated with the connecting end of the female connector 20. A plurality of L-shaped limiting holes 50 are opened at the other end of the female connector protective shell 40. One end opening of the L-shaped limiting hole 50 is located at the end of the female connector protective shell 40. The end of the male connector protective shell 30 can be sleeved on one end of the female connector protective shell 40, and each positioning protrusion 60 is respectively engaged with each L-shaped limiting hole 50, and the male connector 10 is connected to the female connector 20.

[0033] The single-pole plug in the utility model is assembled by a male head 10, a female head 20, a male head protective shell 30 and a female head protective shell 40, wherein the male head protective shell 30 and the female head protective shell 40 are mutually clamped to realize connection. During assembly, the male head 10 and the female head 20 are respectively installed in the male head protective shell 30 and the female head protective shell 40, and the two ends of the male head 10 are respectively connected to the two ends of the male head protective shell 30, the female head 20 is arranged in the female head protective shell 40, and the wiring terminal of the female head 20 is connected to one end of the female head protective shell 40, and a plurality of positioning protrusions 60 are arranged at intervals on the outer surface of the male head protective shell 30, and at least one positioning protrusion 60 is arranged, and an L-shaped limiting hole 50 is correspondingly opened on the outer surface of the female head protective shell 40 to fix the female head protective shell 40. The shell 40 is docked with the corresponding male head protective shell 30, so that the female head 20 passes through the male head protective shell 30 and is connected to the male head 10 assembled in the male head protective shell 30. At the same time, during the docking process, the positioning protrusion 60 is aligned with the L-shaped limiting hole 50, so that the positioning protrusion 60 moves into the L-shaped limiting hole 50, and then the female head protective shell 40 is rotated to rotate the L-shaped limiting hole 50 and engage with the positioning protrusion 60 to achieve a fixed connection, effectively avoiding the connection between the male head 10 and the female head 20 from being disconnected after being subjected to external force. Through the above-mentioned structural setting, the single-pole plug in the present application will not be disconnected without rotating the female head protective shell 40 to disengage the L-shaped limiting hole 50 and the positioning protrusion 60, thereby achieving the stability of the connection between the male head 10 and the female head 20.

[0034] In another embodiment of the present invention, Figure 1 and Figure 3As shown, the L-shaped limiting hole 50 includes a guide hole 41 and a locking hole 52. One end of the guide hole 41 is connected to the end of the male head protective shell 30, and one end of the locking hole 52 is connected to the other end of the guide hole 41. The guide hole 41 is arranged parallel to the end edge of the male head protective shell 30. The positioning protrusion 60 passes through the guide hole 41 and is engaged with the locking hole 52. When the positioning protrusion 60 moves along the guide hole 41 to a position corresponding to the locking hole 52, the moving direction of the positioning protrusion 60 is changed according to the rotation of the female head protective shell 40, so that the positioning protrusion 60 enters the locking hole 52 to achieve locking positioning.

[0035] In another embodiment of the present invention, Figure 1 and Figure 3 As shown, the guide hole 41 is arranged perpendicularly to the end edge of the male protective shell 30, and the locking hole 52 is arranged perpendicularly to the guide hole 41. The vertical track setting can facilitate the plugging and rotation of the male connector 10 and the female connector 20.

[0036] In another embodiment of the present invention, Figure 1 and Figure 3 As shown, a limiting protrusion is provided on the inner side surface of the locking hole 52 close to the end of the male head protection shell 30, and the limiting protrusion is used to block the positioning protrusion 60 from being easily displaced.

[0037] In another embodiment of the present invention, Figures 1-2 and Figure 4 As shown, the male head protection shell 30 includes a male head wiring protection sleeve 31 and a male head sleeve 32, an L-shaped limiting hole 50 is arranged on the male head sleeve 32, one end of the female head protection shell 40 is sleeved in the male head sleeve 32, the male head sleeve 32 is sleeved on the male head 10, and one end of the male head 10 is located in the male head sleeve 32, the male head wiring protection sleeve 31 is clamped with one end of the male head sleeve 32, the wiring terminal of the male head 10 is located in the male head wiring protection sleeve 31, the male head wiring protection sleeve 31 protects the connecting wire connected to the male head 10 to prevent the connecting part of the connecting wire and the male head 10 from being easily damaged, the male head sleeve 32 encloses and protects the male head 10, and is clamped with the female head protection shell 40 at the same time.

[0038] In another embodiment of the present invention, Figures 1-2 and Figure 4 As shown, a plurality of first locking holes 321 are provided on the side of the male sleeve 32, and the male wiring protective cover 31 and the first locking holes 321 are mutually engaged. The first locking holes 321 are provided near the edge of one end of the male sleeve 32 to facilitate the connection of the male wiring protective cover 31.

[0039] In another embodiment of the present invention, Figures 1-2 and Figure 4As shown, a plurality of first clamping members 311 are disposed at one end of the male terminal protection cover 31 , and the first clamping members 311 and the first clamping holes 321 are mutually clamped to achieve easy assembly and disassembly.

[0040] In another embodiment of the present invention, Figures 1 to 3 As shown, the female head protective shell 40 includes a female head wiring protective sleeve 41 and a female head sleeve 42, and the positioning protrusion 60 is arranged on the outer wall of the female head sleeve 42. One end of the female head protective shell 40 is sleeved on the end of the male head protective shell 30, and the male head 10 passes through the female head sleeve 42 to be connected with the female head 20. The female head sleeve 42 is sleeved on the female head 20, and the female head wiring protective sleeve 41 is clamped with one end of the female head sleeve 42. The wiring terminal of the female head 20 is located in the female head wiring protective sleeve 41. The female head wiring protective sleeve 41 protects the connecting wire connected to the female head 20 to prevent the connecting part of the connecting wire and the female head 20 from being easily damaged. The female head sleeve 42 wraps the female head 20 and is clamped with the male head sleeve 32 to realize the alignment of the male head 10 and the female head 20.

[0041] In another embodiment of the present invention, Figures 1 to 3 As shown, a plurality of second locking holes 421 are provided on the side of the female sleeve 42, and the female wiring protective cover 41 and the second locking holes 421 are mutually engaged. The second locking holes 421 are provided near the edge of one end of the female sleeve 42 to facilitate the connection of the female wiring protective cover 41.

[0042] In another embodiment of the present invention, Figures 1 to 3 As shown, a plurality of second clamping members 411 are disposed at one end of the female connector wiring protection cover 41 , and the second clamping members 411 and the second clamping holes 421 are mutually clamped to achieve assembly and disassembly.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A single-pole plug, characterized in that: It includes a male head, a female head, a male head protection shell and a female head protection shell, the male head protection shell is sleeved on the male head, and one end of the male head protection shell is communicated with the male head connecting end, a plurality of positioning protrusions are arranged on the side of the male head protection shell, the female head protection shell is sleeved on the female head, one end of the female head protection shell is communicated with the female head connecting end, a plurality of L-shaped limiting holes are opened at the other end of the female head protection shell, one end of the L-shaped limiting hole is opened at the end of the female head protection shell, the end of the male head protection shell can be sleeved on one end of the female head protection shell, and each of the positioning protrusions is respectively engaged with each of the L-shaped limiting holes, and the male head is connected to the female head.

2. The monopolar plug according to claim 1, characterized in that: The L-shaped limiting hole includes a guide hole and a locking hole, one end of the guide hole is connected to the end of the male head protective shell, one end of the locking hole is connected to the other end of the guide hole, and the guide hole is arranged parallel to the end edge of the male head protective shell, and the positioning protrusion passes through the guide hole and is engaged with the locking hole.

3. The monopolar plug according to claim 2, characterized in that: The guide hole is arranged perpendicularly to the end edge of the male head protection shell, and the locking hole is arranged perpendicularly to the guide hole.

4. The monopolar plug according to claim 3, characterized in that: A limiting protrusion is arranged on the inner side surface of the locking hole close to the end of the male head protection shell.

5. The monopolar plug according to claim 1, characterized in that: The male head protective shell includes a male head wiring protective cover and a male head sleeve, the L-shaped limiting hole is arranged on the male head sleeve, one end of the female head protective shell is sleeved in the male head sleeve, the male head sleeve is sleeved on the male head, and one end of the male head is located in the male head sleeve, the male head wiring protective cover is clamped with one end of the male head sleeve, and the wiring terminal of the male head is located in the male head wiring protective cover.

6. The monopolar plug according to claim 5, characterized in that: A plurality of first locking holes are arranged on the side surface of the male sleeve, and the male wiring protection cover is locked with the first locking holes.

7. The monopolar plug according to claim 6, characterized in that: A plurality of first clamping pieces are arranged at one end of the male terminal wiring protection cover, and the first clamping pieces are clamped with the first clamping holes.

8. The monopolar plug according to claim 1, characterized in that: The female head protection shell includes a female head wiring protection cover and a female head sleeve, the positioning protrusion is arranged on the outer side wall of the female head sleeve, one end of the female head protection shell is sleeved on the end of the male head protection shell, and the male head is connected with the female head through the female head sleeve, the female head sleeve is sleeved on the female head, the female head wiring protection cover is clamped with one end of the female head sleeve, and the wiring terminal of the female head is located in the female head wiring protection cover.

9. The monopolar plug according to claim 8, characterized in that: A plurality of second locking holes are arranged on the side surface of the female head sleeve, and the female head wiring protection cover and the second locking holes are mutually locked.

10. The monopolar plug according to claim 9, characterized in that: One end of the female connector wiring protection cover is provided with a plurality of second clamping pieces, and the second clamping pieces are clamped with the second clamping holes.

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