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69results about How to "Reduce operating force" patented technology

Novel structural high-pressure balance valve

The invention relates to a novel structural high-pressure balance valve, which comprises a valve body (1), a stuffing box assembly, a valve rod assembly, a support assembly, a hand wheel assembly, a four-element ring (10) and a split jacket (26), wherein a concave groove is arranged on the inner wall of a top hole of the valve body, the four-element ring (10) is arranged on the concave groove, aninner ring of the four-element ring (10) protrudes out of the concave groove, and the bottom of a projection part is in contact with the top surface of the stuffing box assembly; the valve rod assembly comprises a valve rod (9) inserted into the stuffing box assembly and a valve clack (2), the top of the valve rod (9) is connected with the support assembly through the split jacket (26), the valveclack (2) is a cylindrical cavity, a pressing plate is arranged in the valve clack (2), an inner wall of the valve clack (2) at the upper part of the pressing plate is a screw thread, the screw thread is connected with a thread spacer sleeve (31), the bottom of the valve rod (9) is inserted into the thread spacer sleeve (31), the bottom of the valve rod (9) protrudes, the bottom of the thread spacer sleeve (31) is concave, the valve rod (9) and the thread spacer sleeve (31) are matched, so that the valve rod (9) and the thread spacer sleeve (31) are in lapped joint; the stuffing box assembly comprises a stuffing box (7), a first O-shaped sealing part, a second O-shaped sealing part and a third O-shaped sealing part; an O-shaped ring is an F4 type all-coated fluororubber O-shaped sealing ring, and is an axially assembled structure; and fluid balance holes are arranged on the pressing plate in the valve clack (2) and the thread spacer sleeve (31). The novel structural high-pressure balance valve, provided by the invention, has the advantages of simple structure, convenience for use and small volume.
Owner:YUEYANG ZHUSHENG VALVE PIPELINE

Circuit breaker and solid-sealed pole thereof

The present invention discloses a circuit breaker and a solid-sealed pole thereof. The solid-sealed pole comprises an upper outgoing line, an arc extinguish chamber, and a lower outgoing line which are sequentially and electrically connected from top to bottom. The lower outgoing line is provided with a fitting hole extending up and down; the lower end of the arc extinguish chamber is provided with a running end conductive rod which is piloted to move in an up-and-down direction to be worn in the fitting hole; an annular contact finger is arranged at an interval between the peripheral surface of the running end conductive rod and the hole wall surface of the fitting hole; the contact finger is fixed on one of the peripheral surface of the running end conductive rod and the hole wall surface of the fitting hole; a graphite layer is arranged at an interval between the other one of the peripheral surface of the running end conductive rod and the hole wall surface of the fitting hole and the strap touch finger; and the graphite layer is on the touch finger or is in pilot moving fit with the touch finger in the up-and-down direction. By self-lubricating performance of the graphite layer, when the graphite layer is on the touch finger, the friction between the graphite layer and the peripheral surface of the running end conductive rod or the hole wall surface of the fitting hole, which is in contact with the graphite layer, is reduced; and when the graphite layer is in sliding fit with the touch finger, the friction between the graphite layer and the touch finger is reduced so as to reduce the friction between the runing end conductive rod and the fitting hole.
Owner:TIANJIN PINGGAO INTELLIGENT ELECTRIC +2

Auxiliary door-opening apparatus

A door opening assisting device that has a simple structure not requiring a dedicated operation member for assisting opening of a door and whose operability and reliability when it operates in synchronous with door opening operation are enhanced. The door opening assisting device is constructed as follows. With opening and closing of the door, a passive member (20) connected to a door closer for rotatingly urging the door in the closing direction is rotated in the normal and reverse direction, and the rotation of the door closer causes transmission members (30, 31) to reciprocate in the direction corresponding to the opening and closing of the door.; In this process, the opening of the door causes an opening spring (51) to urge and move the transmission member (30) in the door opening direction, and after opening force is accumulated in the spring (51) by the movement of the transmission member (31), the spring (51) is locked with the opening force accumulated in it. In the construction above, when the passive member is rotated in a predetermined angle region in the initial stage of door opening operation, this causes the opening spring to exert opening force and also causes the spring to accumulate opening force and then to be locked with the opening force accumulated in it.
Owner:NHK SPRING CO LTD

Shower head with push button

The invention discloses a shower head with a push button. The shower head comprises a body, a water distribution body, a water outlet surface cover, a rotating body, a sliding body and the push button, wherein the body is provided with a water inlet channel and an accommodation cavity forming an opening at one side, the water distribution body is fixedly installed in the accommodation cavity and is provided with at least two water outlet channels, at least two water outlet holes correspondingly communicating with the water outlet channels and a water inlet hole communicating with the water inlet channel, the water outlet surface cover fixedly covers the opening of the accommodation cavity and is provided with at least two water outlet nozzles communicating with the corresponding water outlet channels, an overflowing channel of the rotating body is provided with a water inlet end communicating with the water inlet hole in a sealed mode and a water outlet end communicating with the wateroutlet holes in a sealed mode or in a staggered mode, and the rotating body is installed on the water distribution body around the water inlet end in a rotating mode, the sliding body is slidably installed on the water distribution body, and the push button is arranged on the body in a sliding mode and drives the rotating body to rotate through the sliding body, so that the water outlet end of the rotating body communicates with the water outlet holes in a switching mode. According to the shower head with the push button, the shower head is simple in structure, the operation force for drivingthe rotating body to rotate is low, and therefore the operation force value can be effectively reduced.
Owner:XIAMEN OCEANS SANITARY WARE CO LTD

Quick door-opening structure of mining explosion-suppression high-voltage distribution device

A quick door-opening structure of a mining explosion-suppression high-voltage distribution device comprises an explosion-suppression box body, wherein the explosion-suppression box body is installed on a box body door frame, and an explosion-suppression door is installed at the outer end of the box body door frame. An upper front door block and a lower front door block are symmetrically and vertically installed on the explosion-suppression door frame at interval, the upper end and the lower end of the explosion-suppression box body are provided with hinge seats through third bolts respectively, and a first movable hinge is installed in the upper front door block and is installed on the hinge seat at the upper end through a third cylindrical pin. A second movable hinge is installed in the lower front door block and is installed on the hinge seat at the lower end through a third cylindrical pin. An eccentric shaft is installed between an upper door block and a lower door block, a sleeve is fixed on the eccentric shaft through a first cylindrical pin, and a handle is installed outside the sleeve through a second cylindrical pin. The quick door-opening structure further comprises a rack, wherein the rack is fastened on the box body door frame through a first bolt and a positioning pin. Evenly separated semi-circular grooves are arranged on the explosion-suppression door frame and are matched with tooth shapes of the rack. The quick door-opening structure of the mining explosion-suppression high-voltage distribution device is good in reliability.
Owner:无锡中科电气设备有限公司
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