A kind of waterproof socket
Technical field
The present invention relates to a kind of socket, especially a kind of waterproof socket.
Background technology
As everyone knows, the invasion and attack of conducting mediums such as rain, water are guarded against in the connection of appliance plug socket, so waterproof socket can be avoided the generation of electric shock accidents as a kind of socket of waterproof and rainproof function, produce and life in obtained application more and more widely.China's Chinese patent " a kind of waterproof socket " that disclosed number of patent application was CN200410017981.7 on November 2nd, 2005, it comprises socket, cover plate, spigot at socket is connected with cover plate versatilely, it is characterized in that in the socket of socket, being provided with the O-ring seal that is sealed and matched with plug, described O-ring seal is an annular, and inlays in the spigot groove of socket.Because it is provided with cover plate on socket, so when plug is not pegged graft, also have water-proof function; Again because be provided with O-ring seal at spigot, so when this plug is plugged on the socket, because it is closely cooperating of O-ring seal and plug consequently reached good waterproof effect, and the project organization of this product is simple, very practical.But in the use of reality, found that also there are some perfect inadequately places in it, as: cover plate and socket all are to adopt duroplasts to make, so be difficult to obtain effective seal; Under non-working condition, the effect of waterproof rain-proof is not ideal enough; Along with long use, situations such as blow-by can appear because of aging or wearing and tearing in sealing position in the waterproof socket.Nowadays, have scientific and technical personnel that waterproof socket is improved yet, but exist different problems, or structure is complicated, or use inconveniently, or sealing effectiveness is good etc.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of waterproof socket with better waterproof rain-proof sealing effectiveness.
The technical solution adopted for the present invention to solve the technical problems is: a kind of waterproof socket, include jack body and waterproof cover, jack body includes loam cake and lower cover, on cover and be provided with the socket mouth, but waterproof cover folding sealing is arranged at the socket mouth place of loam cake with being fastened and connected, it is characterized in that: also include water proof ring and retainer plate, described loam cake offers seal groove around socket mouth place, on the water proof ring, the lower end is respectively equipped with the step body of and outward extending annular radially inside along water proof ring and the sealing strip of annular, sealing strip place end is installed in seal groove on the water proof ring, retainer plate is placed in the seal groove and is sheathed on the water proof ring, be provided with along the fillet of the axially extended annular of retainer plate with the inconsistent end face of water proof ring sealing strip on the retainer plate, the internal diameter of fillet is equal to or greater than the external diameter of sealing strip, fillet is sheathed on the sealing strip outer wall, retainer plate and seal groove are tightly connected, and retainer plate and water proof ring are tightly connected, and water proof ring and seal groove are tightly connected.
Adopt technique scheme, water proof ring is installed in seal groove, and the step body of water proof ring upper end extends internally, so when the plug insertion socket mouth, step body and plug outer wall constitute interference and be sealed and matched, and have played the effect of anti-water intrusion thus.Wherein, also press on the sealing strip of water proof ring and be provided with the retainer plate that is used for fixing with sealing function, sealing strip between retainer plate and seal groove and retainer plate and water proof ring is more, so relative seal distance is longer, then the sealing effectiveness in the present invention is better because of the long effect of distance.Adopt present state-of-the-art supersonic welding connection technology simultaneously, retainer plate is applied downward power, and retainer plate and seal groove carried out ultrasonic bonding, make retainer plate and seal groove combine together, it is the equal of the incorporate setting of retainer plate and loam cake, because retainer plate position in welding process will be moved to the seal groove bottom land, then retainer plate will press the sealing strip of water proof ring, and force water proof ring and seal groove bottom land to be combined closely, so be that the interference of retainer plate and water proof ring and water proof ring and seal groove bottom land formation is sealed and matched relatively, also promptly has the twice waterproof barrier that forms by interference fit, with respect to traditional approach sealing effectiveness more outstanding, and do not increase self production cost.
The further setting of the present invention is: the sealing strip of described water proof ring is provided with jack, the seal groove bottom land also be provided with sealing strip on jack position and the suitable loam cake jack of shape, convex with pin on the retainer plate on the end face of seal groove bottom land, the position of pin and shape and jack and loam cake jack are suitable.
Adopt technique scheme, by the pin on the retainer plate, retainer plate, water proof ring and loam cake are positioned, more stable when making ultrasonic bonding, the structure after the welding is firm stable more.
The further setting of the present invention is: the outer wall place that is higher than seal groove on the described water proof ring is provided with the drainage trough around water proof ring, is provided with the welding boss of annular on the retainer plate fillet with the inconsistent end face of seal groove bottom land.
Adopt technique scheme, because the socket in the productive life is installed on the wall more, after former but waterproof socket is installed on the corresponding socket, the outer wall of water proof ring can be vertical with wall, this moment is if having water or rain to fall within on the water proof ring, then liquid can flow into drainage trough, and along the guiding of drainage trough and fall, so can not cause liquid to enter in the socket mouth.Wherein, when retainer plate and seal groove are carried out ultrasonic bonding, welding boss on the retainer plate fillet will melt and combine together with seal groove, compare with respect to will be on the fillet merging fully with end face that seal groove is conflicted, this technology has improved the completeness of melting, and has also improved the effect of sealing simultaneously.
Of the present inventionly further be set to: described waterproof cover is covered on the water proof ring again, the waterproof cover lower surface is provided with capillary groove, the internal diameter of capillary groove and the external diameter of water proof ring are suitable, and the upper surface of capillary groove bottom land and water proof ring is inconsistent and constitute being sealed and matched each other.
Adopt technique scheme, the upper surface of the bottom land of capillary groove and water proof ring is inconsistent and constitute and to be sealed and matched on the waterproof cover, when non operating state, waterproof cover also can play impurity such as anti-sealing or dust and enter the socket mouth, has further improved the security performance of waterproof socket thus.
Below in conjunction with accompanying drawing the present invention is further described.
Description of drawings
Fig. 1 is the schematic diagram of the embodiment of the invention.
Fig. 2 is the partial exploded view of the embodiment of the invention.
Fig. 3 is the cutaway view of the embodiment of the invention.
Fig. 4 is the A portion enlarged drawing of Fig. 3.
Fig. 5 is the cutaway view of embodiment of the invention water proof ring.
Fig. 6 is the schematic diagram of embodiment of the invention retainer plate.
Embodiment
Shown in Fig. 1-6, present embodiment comprises jack body 1, waterproof cover 2 and installs water proof ring 3 and retainer plate 4 on jack body 1, jack body 1 includes loam cake 11 and the lower cover 12 that sealing fastens, be provided with jack assemblies in the container that fastens mutually, loam cake 11 is provided with socket mouth 111, waterproof cover 2 constitutes the cooperation that is connected that can forward to by torsion spring and loam cake 1 upside wall one side, and waterproof cover 2 is covered on socket mouth 111 places, loam cake 11 offers seal groove 112 around socket mouth 111 places, and seal groove 112 bottom lands offer four symmetrically arranged loam cake jacks 1121.Shown in Fig. 2,5, water proof ring 3 upper ends are provided with the step body 31 of the annular that extends radially inwardly along water proof ring 3, water proof ring 3 lower ends are provided with the sealing strip 32 of the annular that extends radially outwardly along water proof ring 3, sealing strip 32 place ends are installed in seal groove 112 on the water proof ring 3, sealing strip 32 is inconsistent with seal groove 112 bottom lands, offer on the sealing strip 32 and loam cake jack 1121 positions and the suitable jack 321 of shape, the outer wall place that is higher than seal groove 112 on the water proof ring 3 also is provided with the drainage trough 33 that is provided with around water proof ring 3 outer walls.Shown in Fig. 4,6, retainer plate 4 is placed in the seal groove 112 and is sheathed on the water proof ring 3, on the end face of bottom land, also be provided with fillet 41 on the retainer plate 4 with the vertically disposed annular of this end face, the external diameter that is equal to or greater than sealing strip 32 of fillet 41, sealing strip 32 is inconsistent on retainer plate 4 and the water proof ring 3, and fillet 41 is sheathed on sealing strip 32 outer walls on the retainer plate 4, also convex with pin 42 on the retainer plate 4 on the end face of bottom land, the position of pin 42 and shape and jack 321 and loam cake jack 1121 are suitable.Wherein, retainer plate 4 and seal groove 112 inconsistent end faces are tightly connected by ultrasonic bonding, and retainer plate 4 and water proof ring 3 inconsistent end faces are tightly connected by ultrasonic bonding.Waterproof cover 2 is covered on the water proof ring 3, and waterproof cover 2 lower surfaces are provided with capillary groove 112, and the external diameter of the internal diameter of capillary groove 112 and water proof ring 3 is suitable, and the upper surface of capillary groove 112 bottom lands and water proof ring 3 is inconsistent and constitute being sealed and matched each other.
Among the present invention, because the step body 31 of water proof ring 3 upper ends extends internally, so when plug insertion socket mouth 111, step body 31 is sealed and matched with the interference of plug outer wall formation, has played the effect of anti-water intrusion thus.Wherein, also press on the sealing strip 32 of water proof ring 3 and be provided with the retainer plate 4 that is used for fixing with sealing function, adopt present state-of-the-art supersonic welding connection technology simultaneously, retainer plate 4 is applied downward power, and retainer plate 4 and seal groove 112 carried out ultrasonic bonding, make the welding boss 411 on retainer plate 4 edge fits 41 melt, and and seal groove 112 bottom lands combine together, be the equal of retainer plate 4 and loam cake 11 incorporate settings, compare with respect to will be on the fillet 41 merging fully with end face that seal groove 112 is conflicted, the existence of this welding boss 411 has improved the completeness of melting, and has also improved the effect of sealing simultaneously.Because retainer plate 4 position in melting process will be moved to seal groove 112 bottom lands, then retainer plate 4 will press the sealing strip 32 of water proof ring 3, and force water proof ring 3 and seal groove 112 bottom lands to be combined closely, so be that retainer plate 4 and water proof ring 3 are sealed and matched with water proof ring 3 and the interference of seal groove 112 bottom lands formation relatively, also promptly has the twice waterproof barrier that forms by interference fit, with respect to traditional approach sealing effectiveness more outstanding, and do not increase self production cost.Retainer plate 4, water proof ring 3 and loam cake 11 cooperate by the location of pin 42, jack 321 and loam cake jack 1121 respectively, make the three more stable when ultrasonic bonding, and the structure after then welding is firm stable more.Wherein, because the socket in the productive life is installed on the wall more, after former but waterproof socket is installed on the corresponding socket, the outer wall of water proof ring 3 can be vertical with wall, this moment, then liquid can flow into drainage trough if having water or rain to fall within on the water proof ring, and fell along the guiding of drainage trough 33, avoid spray to invade in the socket mouth 111, cause danger such as short circuit.In addition, the upper surface of the bottom land of capillary groove 112 and water proof ring 3 is inconsistent and constitute and to be sealed and matched on the waterproof cover 2, when non operating state, waterproof cover 2 also can play impurity such as anti-sealing or dust and enter the socket mouth, has further improved the security performance of waterproof socket thus.The present invention can also have other execution modes, and the technical scheme that equal replacement of all employings or equivalent transformation form all drops within the scope of protection of present invention.