33results about How to "Achieve waterproof protection" patented technology

The invention relates to a lifting type communication case, which comprises a communication case body, an equipment rack and a power supply module, wherein the equipment rack and the power supply module are arranged in the communication case body, and the power supply module is connected to an external power supply so as to take power. The lifting type communication case is characterized by further comprising a cover plate, a control module, a control button, a rotating motor and a lifting motor unit, wherein the control button, the rotating motor and the lifting motor unit are connected with the control module, and the lifting motor unit comprises at least three electrically controlled telescopic rod motors. Based on the technical scheme designed by the invention, connection setting is carried out in allusion to the hardware modules so as to form the lifting type communication case, thereby not only being capable of effectively coping with requirements of a narrow setting position, but also being capable of effectively coping with a problem of water accumulation, truly preventing accumulated water from intruding into the internal part of the communication case body, and realizing waterproof protection for communication equipment to the maximum degree.

The invention discloses a movable charging pile with an emergency protection circuit device. The device comprises a machine body and a charging cavity formed in an upper end of the machine body, wherein a protection cavity is formed in the machine body, a protection device is arranged in the protection cavity, a first power cavity is formed in the machine body, a first power device is arranged inthe first power cavity, a movable cavity is formed in the machine body, a movable device is arranged in the movable cavity, a second power cavity is formed in the machine body, a second power device is arranged in the second power cavity, a transmission cavity is formed in the machine body, a transmission device is arranged in the transmission cavity, a control cavity is formed in the machine body, and a control device is arranged in the control cavity. The device is simple in mechanism and easy and convenient to use, a circuit can be protected more quickly and accurately through mechanical control, moreover, movement and fixation of a charging pile and waterproof protection of a charging plug are achieved through mechanical transmission.

The watertight reference electrode comprises a watertight electrode and a watertight cover, in the watertight electrode, an electrode body and a water-permeable protective net are arranged in a protective sleeve, one end of the electrode body is opposite to the water-permeable protective net, the other end of the electrode body is connected with a cable, the cable extends out of the protective sleeve, and a gap between the protective sleeve and the electrode body is filled with first sealing filler. The arrangement position of the first sealing filler is matched with the connection position ofthe electrode body and the cable; the watertight cover is filled with second sealing filler, a watertight electrode is installed on an electrode stuffing box base of the watertight cover, a gap between the electrode stuffing box base and the watertight electrode is filled with third sealing filler, a cable is installed on a cable stuffing box base, and a gap between the cable stuffing box base and the cable is filled with fourth sealing filler. A cable penetrates through the cable stuffing box base from the interior of the watertight cover and extends to the outside; therefore, the scheme realizes four-layer waterproof protection, and thoroughly solves the problem of poor watertight performance of the existing watertight reference electrode.

The invention relates to the technical field of household appliances, and particularly relates to an uncovering power-off structure and an electric heating appliance. The uncovering power-off structure comprises a cover body and a switch, and further comprises a containing cavity and an ejector rod, wherein the containing cavity is formed below the cover body and is suitable for being separated from a storage cavity, and an opening is formed in the end face, facing the cover body, of the containing cavity; one end of the ejector rod is arranged on a trigger part of the switch, and the other end of the ejector rod is arranged in the opening; and when the cover body is closed, the ejector rod abuts against the cover body so as to drive the trigger part. According to the uncovering power-offstructure, the switch is arranged in the containing cavity, the containing cavity and the storage cavity are arranged in a separated mode, so that water in the outside is preliminarily prevented fromdirectly entering the containing cavity, and waterproof protection of the switch is realized.

The invention discloses a mechanical artificial limb socket and a manufacturing method thereof. The mechanical artificial limb socket comprises an inner shell and an outer shell, an electric appliancebin is arranged between the outer shell and the inner shell, a plurality of baffle plates are connected between the outer shell and the inner shell, a plurality of first air holes are formed in the inner shell in an area outside the electric appliance bin, and a plurality of second air holes are formed in the outer shell in an area outside the electric appliance bin. According to the mechanical artificial limb socket, the electric appliance bin is independently arranged for installing electric appliance components, the electric appliance bin is enclosed by the baffle plates, the outer shell and the inner shell, and can isolate external space, so as to realize waterproof protection of the electric appliance components, furthermore, by arranging the first air holes in the inner shell in thearea outside the electric appliance bin and the second air holes in the outer shell in the area outside the electric appliance bin, effective ventilation is realized, thus the waterproof protection of the electric appliance components and the ventilation inside the mechanical artificial limb socket are no longer conflicting points. The invention is used in the field of sockets.

The invention discloses an anti-impact protective buoy which is used for anti-impact protection of a testing device in a ship explosion impact test. The anti-impact protective buoy comprises an outer drum (2) fixedly arranged on a ship through an energy absorbing support (1), an inner drum (6) sleeved in the outer drum (2), a device platform (13) is arranged in the inner drum (6), and the testing device is arranged on the device platform (13). The anti-impact protective buoy is characterized in that a supporting platform (15) is arranged in the outer drum (2), the inner drum (6) is arranged on the supporting platform (15) through a rubber gasket, the upper end of the inner drum (6) protrudes out of the upper end face of the outer drum (2), a gap full of water is arranged between the inner drum and the outer drum, and a rubber supporting ring 11 is arranged in the gap between a wall face of the upper port of the outer drum (2) and an outer wall face of the inner drum (6). The anti-impact testing buoy can achieve efficient cooling and three-level vibration reduction so as to protect and recycle a testing device.

The invention provides a wavelength division multiplexing WDM receiver device and a passive optical network system, and relates to the technical field of communication equipment. The wavelength division multiplexing WDM receiver device comprises a receiver, a support is fixed at the bottom of the receiver, springs are arranged on the top surface in the support in an array manner, the springs are welded with the top surface in the support, and a push plate is fixed at one end of each spring, the push plate is located under the bottom of the receiver, a heat dissipation water cushion is arranged on the top face of the push plate, the two faces of the heat dissipation water cushion abut against the bottom face of the receiver and the top face of the push plate respectively, vent holes are formed in the surface of the receiver, a temperature sensor is fixed in the receiver, and a heat dissipation fan is arranged over the receiver, ventilation holes, the heat dissipation water cushion and the heat dissipation fan are adopted, so that the equipment is effectively cooled, the temperature of the equipment in use is prevented from being too high, and the service life of the equipment is prolonged.

The invention discloses a sound amplifying device with waterproof function, belonging to the technical field of sound amplifying device. The invention relates to a sound amplifying device with waterproof function, comprises a sound amplifying device main body and a waterproof shell, wherein the waterproof shell is fixedly connected with the outside of the sound amplifying device main body, the sound amplifying device main body is provided with speakers symmetrically distributed, a hand-held handle is rotatably connected with a top end side wall of the sound amplifying device main body througha connecting post, and the side wall of the hand-held handle is fixedly connected with a driving gear through a cylinder. The side wall of the waterproof shell is slidably connected with a waterproofplate part, the top end of the waterproof plate part is slidably connected with a fixing column, the upper end of the fixing column is fixedly connected with a rack engaged with a driving gear, and the outer wall of the fixing column is sleeved with a compression spring. The invention has the advantages of simple structure and convenient operation, and can realize effective waterproof protection on the sound amplifying device arranged outdoors by providing a waterproof shell and a waterproof plate, and the sound amplifying device of the invention can be conveniently moved.

The invention discloses a waterproof protection method for a low-cost battery charging interface. A battery, a direct current charging input interface and a one-way control circuit connected with the battery and the direct current charging input interface are included, and the one-way control circuit is composed of a P-channel field effect transistor D1, a diode D2, a triode Q1, resistors R1, R2, R3, R4 and R5 and a battery circuit. According to the method, on and off of a field-effect transistor are controlled by automatically detecting whether a charging input interface has input voltage by utilizing the advantages of switching characteristic, low on-resistance and low dropout of the field-effect transistor device, so one-way conduction of a circuit is controlled, and the battery is prevented from supplying power to the charging port when no voltage is input to the charging port; when the charging port has no voltage, the field effect transistor is cut off, and the circuit between the battery and the charging port is cut off, thereby effectively preventing the battery from flowing out of the charging port to damage equipment.

The invention discloses a novel capacitor cabinet which comprises a cabinet body, a cabinet door is installed on the front face of the cabinet body, a control panel is arranged on the cabinet door, a plurality of sliding rails are sequentially installed on the inner side walls of the two opposite sides in the cabinet body from top to bottom, and a bearing plate in sliding connection with the sliding rails is arranged between the matched sliding rails on the two sides. Elastic clamping limiting mechanisms for fixedly connecting the bearing plate and the sliding rails are arranged at the joints of the bearing plate and the sliding rails, heat dissipation holes are uniformly formed in the bearing plate, an air inlet is formed in the bottom of the cabinet body, a heat dissipation fan is arranged in the air inlet, a dustproof net is mounted at the bottom of the air inlet, a plurality of air outlets are uniformly formed in the top of the cabinet body, and a rain shelter is mounted at the top of the cabinet body. A protective cover is arranged on the front face of the cabinet body, the top of the protective cover is fixedly arranged on the top of the front face of the cabinet body, electric telescopic rods are fixedly arranged at the two ends of the bottom of the front face of the cabinet body, and the tops of the electric telescopic rods are connected with the bottom of the protective cover.

The invention relates to the related field of substations, in particular to liftable underground substation equipment which comprises a box body and a first cavity formed in the box body, a driving shaft is rotatably mounted on the right side end wall of the first cavity and is in power connection with a motor, and the motor is fixedly mounted on the right side end wall of the first cavity.A switching cavity is provided in the box on the lower side of the first cavity. According to the liftable underground substation equipment, the transformer can be moved up and down through a transmission device, the substation is convenient to overhaul, the local space is reasonably utilized, the substation cannot be exposed outside for a long time, the substation is protected, the service life of the transformer substation is prolonged, the transformer substation can be protected by the insect pest prevention device, wiring in the transformer substation is prevented from being damaged by insect pests, moisture absorption can be achieved through the protection device, and waterproof protection can be conducted on the transformer substation.