A kind of waterproof plug socket
Technical field
The utility model relates to a kind of electrical connector, is specifically related to the combiner of a kind of plug and socket.
Background technology
Plugs and sockets is that an a kind of end is a plug, and the other end is the plugs and sockets combination product of socket, and this product has higher requirement for water-proof function.Its structure mainly comprises: the plug and socket component that is made of plug-assembly and jack assemblies, plug and socket component places and seals in the loam cake and lower cover that is fastened and connected, on be covered with waterproof cover, waterproof cover fastens sealing by sealing ring and the loam cake around the socket mouth, under be covered with the plug-assembly installing port, latch is fixed in the plug-assembly by the latch installing hole of latch plug-assembly.
The patent No. is that the patent of CN200710079864.7 proposes a kind of waterproof plug socket, this patent disclosure following technical scheme: the socket mouth of loam cake is equipped with sealing ring, on the sealing ring, the lower end is respectively equipped with interior mutually and outward extending ring-shaped step body, the annular end face up and down that is positioned at the outside step body in the sealing ring lower end of socket mouth below is connected around the annular lower wall surface of socket mouth and the annular that the jack assemblies sidewall protrudes to the sidepiece terrace interference fit seal of appearing on the stage with loam cake respectively, and the annular upper end face that is positioned at the inside step body in the sealing ring upper end of socket mouth top is connected with the waterproof cover lower wall surface interference fit seal of elasticity fastening.This technical scheme waterproof effect is not very good.
This patent further discloses following technical scheme: loam cake is connected by the excessive fitted seal of male and female face with the position that is fastened and connected of lower cover, the loam cake face of being fastened and connected is provided with the groove that cross section is square, the lower cover face of being fastened and connected is provided with cross section and is corresponding square boss face, the lower cover boss face embeds the loam cake groove, is connected with last excessive fitted seal of groove by its three boss face.The influence because loam cake and lower cover manufactured materials are subject to expand with heat and contract with cold makes that loam cake and lower cover fastening place sealing are not good, thereby can not ensure to have good sealed waterproof effect in the product use.
In the prior art, the latch of plugs and sockets generally all is arranged to cylinder type, and the latch installing hole of plug-assembly is cylindrical accordingly, and in the product use, the plug-assembly influence that is subject to expand with heat and contract with cold, and latch is loosening easily, thereby influences the use of product.
Summary of the invention
The proposition the purpose of this utility model is, at above the deficiencies in the prior art, provides a kind of waterproof effect better good plugs and sockets, and the utility model further has the difficult loosening effect of latch.
For reaching above-mentioned technique effect, the utility model waterproof plug jack technology scheme is: the utility model is provided with loam cake and the lower cover that is tightly connected, be provided with the plug and socket component that constitutes by plug-assembly and jack assemblies in loam cake and the lower cover, on be covered with waterproof cover, waterproof cover fastens by water proof ring and the loam cake sealing around the socket mouth, under be covered with the plug-assembly installing port, latch is fixed in the plug-assembly by the latch installing hole of latch plug-assembly, be characterized in: described water proof ring annular upper end face is provided with the ring-shaped edge to upper process, the ring-shaped edge internal diameter of projection is more than or equal to water proof ring top internal diameter, and water proof ring top boss ring-shaped edge external diameter is less than water proof ring top external diameter; Described water proof ring top is provided with the chimb to water proof ring center of circle direction projection simultaneously; Described waterproof cover lower wall surface is provided with the circular table with the water proof ring relative set, circular table and waterproof cover interior sidewall surface annular groove, when waterproof cover and loam cake fasten, the annular groove interior sidewall surface is close to sealing mutually with water proof ring top boss ring-shaped edge internal face, annular groove outer side surface and water proof ring top outer wall are close to sealing, and circular table tightens described water proof ring chimb upper wall surface.So be provided with, sealing property is better between seal cover and the loam cake, thereby reaches better waterproof effect.
The utility model further is provided with sealing ring between loam cake and lower cover, the top is provided with chimb around the lower cover, lower cover is fastened and connected by described chimb and loam cake madial wall interference fit and loam cake sealing, loam cake and lower cover buckling parts are provided with outer outstanding boss, be covered with down and place loam cake and the loam cake outwards outstanding boss of place's downside that is fastened and connected, lower cover boss upper wall surface is near being provided with groove around the described lower cover chimb, be provided with in the groove and embed the sealing ring that is provided with, three sides of sealing ring and groove and described loam cake boss downside interference fit are provided with.So be provided with, improved the sealing between loam cake and the lower cover more, thereby had better waterproof effect.
The further again technical scheme of the utility model is: be provided with encoder in the lower cover, the lower cover downside is provided with the encoder opening, the encoder opening is provided with the encoder lid, encoder is covered with corresponding chimb to upper process with the encoder opening shape, the encoder lid is tightly connected by the lateral wall of described chimb and the madial wall chucking of described opening with the encoder opening, the outwards outstanding boss of the level that is provided with around the encoder lid, the boss upper wall surface is near being provided with groove around the described chimb, groove is embedded in sealing ring, and three sides of sealing ring and groove and lower cover bottom surface interference fit are provided with.So be provided with, prevented that more effectively water from leaking into plugs and sockets inside by the encoder opening, thereby improved plugs and sockets integral waterproofing performance.
The utility model further technical scheme is: the latch of plugs and sockets is divided into riveted joint position, latch top and latch bottom, the latch lower diameter is greater than the latch upper diameter, and the latch bottom is clipped the latch Outboard Sections near latch top one end, one side by the cross section parallel with the latch central axis; The lateral section equals the distance of the face of cylinder, latch top to central axis to the distance of latch central axis outside the latch bottom; Plug-assembly is provided with and the corresponding latch installing hole of latch shape.So be provided with, latch is difficult in the latch installing hole of plug-assembly loosening.
As mentioned above, the plugs and sockets that the utility model provides has more good sealing effectiveness, and has the difficult loosening advantage of latch.
Description of drawings
Fig. 1 is the utility model embodiment element exploded view
Fig. 2, Fig. 3 are the utility model embodiment sectional structure chart
Fig. 4 is Fig. 2 embodiment A position waterproof cover 1 and the loam cake 4 structure enlarged diagram that is tightly connected
Fig. 5 is Fig. 2 Embodiment B position plug-assembly 12 and the lower cover 16 structure enlarged diagram that is tightly connected
Fig. 6 is Fig. 2 Embodiment C position loam cake 4 and the lower cover 16 structure enlarged diagram that is tightly connected
Fig. 7 is Fig. 2 embodiment D place coding device lid 20 and the lower cover 16 structure enlarged diagram that is tightly connected
Fig. 8 is Fig. 3 embodiment E position latch 18 and plug-assembly 12 installing hole syndeton enlarged diagrams
Among the figure:
1: waterproof cover, 2: torsion spring, 3: loam cake, 4: the socket water proof ring, 5: jack assemblies,
6: shutter, 7: the protection spring, 8: the protection door closure, 9: outlet ground spare,
10:L utmost point sleeve, 11:N utmost point sleeve, 12: plug-assembly, 13: the plug-assembly sealing ring,
14: latch, 15: the plug earthing member, 16: lower cover, 17: screw, 18: the ground connection rivet,
19: screw, 20: the encoder lid, 21: encoder lid sealing ring, 22: sealing ring,
23: wiring board and electronic component, 24: binding post, 25: the binding post rivet,
26: heat-shrink tube, 27: pin, 28: the anti-packing ring of losing
101: circular table
301: the loam cake boss
401: the ring-shaped edge of projection, 402: annular rim,
161: lower cover chimb, 162: the lower cover boss
Embodiment
Below in conjunction with Figure of description the utility model structure is further described:
A kind of waterproof plug socket (referring to Fig. 1) that the utility model proposes; comprise: loam cake 3 and lower cover 16; loam cake 3 is fastened and connected with lower cover 16 sealings; loam cake 3 is articulated and connected with waterproof cover 1; loam cake 3 is provided with the socket mouth; waterproof cover 1 fastens with loam cake 3 sealings by the water proof ring 4 around the socket mouth; be provided with the plug and socket component that constitutes by plug-assembly 12 and jack assemblies 5 in loam cake 3 and the lower cover 16; wiring board and electronic component 23; wiring board is provided with encoder; jack assemblies 5 lower ends are provided with shutter 6 and protection door closure 8 thereof; lower cover 16 is provided with plug-assembly installing port and encoder opening, and latch 14 is fixed in the plug-assembly 12 by the latch installing hole of latch plug-assembly 12.
Referring to Fig. 1, Fig. 2 and Fig. 4, water proof ring 4 lower ends are provided with outward extending ring-shaped step body, and the annular end face up and down that is positioned at the outside step body in the water proof ring lower end of socket mouth below is connected around the annular lower wall surface of socket mouth and the annular that jack assemblies 5 sidewalls protrude to the sidepiece terrace interference fit seal of appearing on the stage with loam cake 3 respectively.Water proof ring 4 annular upper end faces are provided with the ring-shaped edge 401 to upper process, the ring-shaped edge internal diameter of projection is (preferred more than or equal to water proof ring 4 top internal diameters, ring-shaped edge 401 internal diameters of present embodiment projection equal water proof ring 4 top internal diameters), water proof ring 4 top boss ring-shaped edges 401 external diameters are less than water proof ring 4 external diameters; Water proof ring 4 tops are provided with the annular rim 402 to water proof ring 4 center of circle direction projections simultaneously; Waterproof cover 1 lower wall surface is provided with the circular table 101 with water proof ring 4 relative set, circular table 101 forms annular groove with waterproof cover 1 interior sidewall surface, when waterproof cover 1 fastens with loam cake 3, the annular groove interior sidewall surface is close to sealing mutually with water proof ring top boss ring-shaped edge 401 internal faces, annular groove outer side surface and water proof ring 4 top outer walls are close to sealing, described water proof ring chimb 402 upper wall surfaces of circular table 101 chuckings.
Referring to Fig. 1, Fig. 2 and Fig. 5, plug-assembly 12 bottoms put in lower cover 16 plug-assembly installing ports, the plug-assembly installing port is provided with the boss around its installing port, plug-assembly 12 is provided with downward annular table terrace, accompany the plug-assembly sealing ring 13 of interference fit between described annular table terrace and lower cover the boss upper wall surface, plug-assembly 12 and lower cover 16 are tightly connected around installing port.
Referring to Fig. 1, Fig. 2 and Fig. 6, be provided with sealing ring 22 between loam cake 3 and the lower cover 16, the top is provided with chimb 161 around the lower cover 3, lower cover is fastened and connected by described chimb 161 and loam cake 3 madial wall interference fit and loam cake 3 sealings, loam cake 3 and lower cover buckling parts are provided with the boss 301 of evagination, lower cover 16 is provided with and places loam cake and the loam cake outwards outstanding boss 162 of place's downside that is fastened and connected, boss 162 upper wall surfaces are near being provided with groove around the described lower cover chimb 161, sealing ring 22 embeds in the groove, with three medial surfaces of groove and loam cake boss 301 downside interference fit.
Referring to Fig. 1, Fig. 2 and Fig. 7, be provided with encoder in the lower cover 16, lower cover 16 downsides are provided with the encoder opening, the encoder opening is provided with encoder lid 20, encoder lid 20 is provided with corresponding chimb to upper process with the encoder opening shape, encoder lid 20 is tightly connected by the lateral wall of described chimb and the madial wall chucking of described opening with the encoder opening, the outwards outstanding boss of the level that is provided with around the encoder lid 20, the boss upper wall surface is near being provided with groove around the described chimb, groove is embedded in sealing ring 21, and three sides and the lower cover 16 bottom surface interference fit of sealing ring 21 and groove are provided with.
Referring to Fig. 1, Fig. 3 and Fig. 8, the latch 14 of plugs and sockets is divided into riveted joint position, latch top and latch bottom, the latch lower diameter is greater than the latch upper diameter, the latch bottom is clipped latch Outboard Sections (preferred, the present embodiment latch is clipped with respect to the central shaft outside portion) near latch top one end, one side by the cross section parallel with the latch central axis; The lateral section equals the distance of latch top cylindrical side to central axis to the distance of latch central axis outside latch 14 bottoms; Plug-assembly 12 is provided with and the corresponding latch installing hole of latch shape.
" upper and lower " of the present utility model is downward with the plug and socket component latch, and the position that jack makes progress is that the reference position is described.