70results about How to "Reduce operating force" patented technology

Pipetting device with a base body, at least one attachment protruding from the base body mounted axially movably on the base body for mounting a pipette tip, a spring via which the attachment is supported on the base, a stop associated with the attachment, beyond which the attachment protrudes axially, when it is not loaded toward the spring and a throw-off device to release the pipette tip from the attachment which comprises a throw-off device associated with the attachment, the attachment and throw-off device being movable relative to one another and which comprises a drive device cooperating with the throw-off device and / or the attachment for the relative movement of the throw-off device and attachment.

A clutch unit comprises an outer ring 1 as an input-side member, an output shaft 2 as an output-side member, an inner ring 3 as a control member, an outer ring 4 as a stationary-side member, a first clutch part 5 interposed between the outer ring 1 and the inner ring 3m, and a second clutch part 6 interposed between the outer ring 4 and the output shaft 2. Input torque input from an operation lever 13 is transmitted in the path of the outer ring 1→the first clutch part 5→the inner ring 3→the output shaft 2. Reverse input torque input from the output shaft 2 is locked with the outer ring 4 through the second clutch part 6.

A locking apparatus, particularly of a parking brake device for a vehicle with an automatic transmission, which has a piston unit positioned inside a housing and is axially displaced and locked in a pre-defined axial position, and a catch device that automatically activates when the piston unit is locked to hold the piston unit. The catch device has at least one spring arm actively connected with the piston unit when the piston unit is locked, the spring arm abuts the piston unit in locked position with a catch area. The spring arm has a recess in a longitudinal plane of the spring arm. The piston unit penetrates the recess of the spring arm at least approximately in a radial direction with a section that forms the catch area, so that when the piston unit is locked, the catch area within the longitudinal plane of the spring arm.

A power tool includes a drive motor and at least one auxiliary device, which is coupled to the drive motor, for activating at least two different operating states. The drive motor and the at least one auxiliary device are controllable using at least one operating device. The output of the drive motor is changed when the at least one auxiliary device is activated. As a result, the operating forces are reduced when switching between operating states, and the load on components is reduced.

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.

The steering column assembly includes: an upper clamp 7; a distance bracket 8 fixed to an outer tube 4; a clamp bolt 9 including a shank 9b inserted in tilt long holes formed in the upper clamp 7 and telescopic long holes formed in the distance bracket 8; an operation lever 10 configured to rotate integrally with the bolt 9; a cam body 11 configured of an eccentric cam 41 and a ring 42, the eccentric cam 41 being provided on the shank 9b, the radial dimension of the eccentric cam 41 gradually changing in its circumferential direction, and the ring 42 rotatably fitted on the outer periphery of the eccentric cam 41. The cam body 11 rotates and is pressed against an inner tube 5 to lock the inner tube 5 to an outer tube 4.

The invention discloses an operating mechanism and a direct-operated grounding switch using the operating mechanism. A connecting lever of the operating mechanism is connected with an elastic member, thus in switching-on and switching-off processes, when the connecting lever drives a moving contact to move relative to a static contact, the elastic member applies corresponding torque to the connecting lever to enable the torque applied by the elastic member to the connecting lever to be combined with driving forces applied by a main shaft to the connecting lever, and the combined resultant forces drive the moving contact through the connecting lever to perform corresponding switching-on and switching-off actions, so that the elastic forces applied by the elastic member to the connecting lever are additionally provided on the basis that the single main shaft drives the connecting lever, operating forces needed in the processes that the connecting lever pushes and pulls the moving contact to act are reduced, and the switching-on and switching-off actions of the direct-operated grounding switch is time-saving and labor-saving.

The present invention relates to a heat exchanger, which can independently controls the volume of heat exchange medium flowing through tubes of a left heat exchange part and a right heat exchange part to independently control the temperature of a driver's seat and a passenger's seat, thereby realizing a compact structure since a temp door for controlling temperature is omitted from an air-conditioning system for the vehicle, which can reduce an operating force and increase durability since heat exchange medium controlling means are in a rotational structure, and which can minimize a temperature difference between the right and left sides thereof since the heat exchange medium is distributed to the tubes uniformly.

The present invention provides a spring balance assembly for use with a sash window assembly slidable within a master frame. The spring balance assembly generally includes a plurality of stacked spring assemblies and pivot brake assembly. The spring assemblies include a coil spring and a support plate that rotatably supports the coil spring. Each coil spring has a free end, an intermediate portion, and a coiled portion, wherein the free ends are operably connected to the pivot brake assembly. The coil springs are configured to prevent a portion of the spring from excessive bowing and making prolonged contact with the wall of the mounting channel to which the balance assembly is affixed. In addition, the coil springs are wound in a manner that significantly reduces the occurrence of severe bowing of the coiled portion and engagement with the channel walls. The spring balance assembly of the present invention reduces contact with the channel walls and thereby reduces any friction and the operating force.

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.

The present disclosure relates to a stationary blade (42) for a blade set (26) of a hair cutting appliance (10), said blade set (26) being arranged to be moved through hair in a moving direction to cut hair, said stationary blade (42) comprising a support insert (70), and a metal component (68) at least sectionally deformed to define a toothed leading edge (32, 34) having double-walled stationary blade teeth (44), wherein the metal component (68) forms a first wall (100) that is arranged to serve as a skin-facing wall when in operation, and a second wall (102) that is facing away from the first wall (100), wherein the first wall (100) and the second wall (102) are joined at the toothed leading edge (32, 34), wherein the support insert (70) connects the first wall (100) and the second wall (102), wherein the metal component (68) is held in place by the support insert (70), and wherein the metal component (68) and the support insert (70) jointly form a guide slot (60) for a movable blade (62). The disclosure further relates to a blade set (26) and to a method of manufacturing a blade set (26) for a hair cutting appliance (10).

A slide fastener (10) is provided with an extraction member (80) provided to a first fastener stringer (16) and also with a retaining member (90) provided to a second fastener stringer (17), and the extraction member (80) and the retaining member (90) are provided so as to face each other. The retaining member (90) is provided with a positioning section for positioning and holding a slider (50). The extraction member (80) is provided with a side-pull contact body (86). The side-pull contact body (86) comes in contact with a flange of a slider (50) when a side-pull force acts on the side-pull contact body (86), and the side-pull contact body (86) comes out of a rear opening of the slider (50) when the extraction member (80) is rotated and moved. This enables the slider (50) to be positioned and held at an engagement and sliding end. When the extraction member (80) is rotated in the direction in which the extraction member (80) is separated from the retaining member (90), the side-pull contact body (86) can be stably extracted from the rear opening of the slider (50) and the slide fastener can be easily set to an open state.

The vehicle is structured so that a steering shaft 12 is installed rotatably on a body frame, a tie rod and a knuckle arm are installed in the lower part of the steering shaft 12 through a steering arm 66, and wheels are mounted on the knuckle arm rotatably, wherein the steering shaft 12 is divided into a plurality of shaft sections (an upper shaft 71, a middle shaft 73, and a lower shaft 75), which are coupled together by hook type joints (a first hook joint 72 and a second hook joint 74).

An storage locking apparatus including a case attached to an end edge of the storage, a locking member slidably supported by the case for engaging with and disengaging from the supporting member, a first urging member for always urging the locking member in a direction of the supporting member, an operating handle pivotably supported axially by the case for unlocking the storage by being pivoted from a side of the supporting member to a side of the storage, and lever mechanisms for sliding the locking member against the first urging member by pivoting the operating handle in which the supporting member dispenses with a containing portion in a recessed shape as in a prior art by providing an operating space between the supporting member and the operating handle.

The invention relates to a gas-insulated metal-enclosed switchgear based on a stand-alone switch element in the power industry, which comprises a cable terminal, a line disconnecting switch, a voltage transformator, a current transformator, a circuit breaker, a bus isolating switch, an earthing isolator, and a circuit breaker operating mechanism, wherein one end of the line disconnecting switch is connected with the cable terminal, and the line disconnecting switch is respectively connected with the voltage transformator and the current transformator; and an interface of the circuit breaker is connected with the current transformator, and the circuit breaker is respectively provided with the bus isolating switch and the earthing isolator. The circuit breaker operating mechanism is arranged below the circuit breaker, thereby relieving operating force; buses of the bus isolating switch and the earthing isolator are arranged in a chamber of the circuit breaker, thereby reducing the space of the whole machine; and end interfaces of the circuit breaker are designed into standard interfaces, and three groups of arc extinguishing chambers are arranged in a structure with a shape like a Chinese character 'pin', thereby having strong universality and even distribution of electric fields.

Provided is a punch wherein an operation force required for punching is effectively reduced with a simple constitution. This punch is equipped with two hollow-like punching shafts 3R, 3L, and perforation timings of the punching shafts 3R, 3L are mutually differentiated.

The invention relates to a pair of cutting nippers having nine functions. An upper scissors body and a lower scissors body are hinged through hinging bolts, wherein the extending ends of the upper and lower scissors are a snap spring nipper and a nipper pliers; a torsion spring which is embedded in the groove of the upper and lower scissors is sleeved on the hinging bolt; two ends of the torsion spring extend outwards and are resisted on a baffle pin of the torsion spring so as to actuate the heads of the upper and lower scissors to open; interiors of the upper part of left and right handles extend into a support stem; a wire stripper, a wire presser and a diagonal pliers are arranged on the support stem; the tail end of the support stem is provided with a wrench, a pipe wrench and a wire cutter; a clamping force regulating mechanism which comprises a double-end bolt, a locking nut, a pressure spring cassette, a pressure spring, a cassette pin, and the like, is arranged on the inside middle part of the left and right handles. The cutting nipper of the invention is provided with nine functions in order to meet the demands of daily work and life. The operation is labor-saving and the clamping force can be regulated and fixed so as to smoothly and safely operate.

An endoscope (1) is provided with the components of operating wires (17,18,19) which are inserted into an insertion part (2) and an operating part (3) in a through manner and bends a bent part (12) through traction or slack; operating components (14,50) which are arranged on the operating part (3) and performs bending operation on the bent part (12); rotating components (22,53) which are arranged in the operating part (3) and rotate in a linkage manner through operation of the operating components (14,50), thereby performing traction or slack on the operating wires (17,18,19); and an operating force reducing part (30) which applies a rotation torque (M) in the operating direction of the rotating components (22,53) according to operation of the operating components (14,50) for reducing operating force of the operating components (14,50).

A front derailleur basically comprises a base member, a chain guide, inner and outer links, a first arm portion, and a coil spring. The chain guide is freely swingably coupled to the base member to guide a chain in a direction of shifting gears. Each of the outer link and the inner link has first and second sections freely rotatably coupled to the base member and the chain guide, respectively. The outer link and the inner link are disposed substantially parallel to each other. The first arm portion extends in a direction away from the base member. The coil spring has first and second ends connected to the base member and a free end of the first arm portion such that a biasing force is applied on the chain guide in a direction toward a frame of the bicycle when the base member is installed on the frame.

The invention discloses a multifunctional sliding window which comprises a window frame, an inner window sash and an outer window sash. The multifunctional sliding window also comprises two second electrified coils arranged in an inner cavity at the lower part of the window frame and located below the inner window sash and below the outer window sash respectively, at least two second magnet blocksarranged at the lower end of the inner window sash, and at least two fourth magnet blocks arranged at the lower end of the outer window sash; the second electrified coils are used for generating a repulsive magnetic field when being electrified to form buoyancy acting on the inner window sash and the outer window sash, or generating an attractive magnetic field to form attraction acting on the inner window sash and the outer window sash. The multifunctional sliding window disclosed by the invention has the advantages of simple structure and low cost, and can adjust the operating force according to the using mode when the sliding window moves.

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.

The invention provides a corrugated pipe valve structure. The corrugated pipe valve structure comprises a valve body, a valve cover in the vertical direction is arranged at the top end of the valve body, a valve rod is arranged in the valve cover, the valve rod is sleeved with a corrugated pipe assembly, the top end of the corrugated pipe assembly and the valve cover are welded and sealed, the bottom end of the corrugated pipe assembly and the valve rod are welded and sealed, and the top end of the valve rod extends out of the valve cover to be connected with a hand wheel. The corrugated pipe valve structure is good in sealing performance and convenient to operate.

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.

A rotary switch operating mechanism is characterized in that the width of the end part of a pawl (502a) arranged on a rotating shaft (5) of the operating mechanism is gradually changed, and is gradually increased from one end far away from the end surface (502a01) of the pawl (502a) to the end surface (502a01) of the pawl (502a). According to the improved structure of the rotary switch operating mechanism, the pawl is arranged in a gradual change form, and the width of the end part of the pawl is increased from narrow to wide, so that the width of the hasp is increased, the height of the haspcan be properly reduced, the total hasp area is not changed, and the stability and the reliability are not reduced. The structure with the pawl width gradually changing only exists on the guide inclined face, the rigidity of the pawl cannot be increased, and in other words, the operation force value needed by the same retraction amount generated when the protruding arm presses the pawl cannot be increased. And after the height of the hasp is reduced, the required operating force is reduced, the strength requirement on each part is also reduced, the abrasion is reduced, and the mechanical service life of the operating mechanism is prolonged.

The retainability and electric connection reliability of a plate-shaped signal transmission medium can be increased by a simple configuration while the operability of an actuator is improved. Pre-pressing protruding portions which create a clicking sensation of a turning operation of the actuator are provided in part of a region in a longitudinal direction of the actuator so that the pressing force of the pre-pressing protruding portions with respect to the plate-shaped signal transmission medium is applied to the part in the longitudinal direction of the actuator, and the pressing force of the pre-pressing protruding portions with respect to the plate-shaped signal transmission medium is prevented from being largely increased even when the actuator is enlarged in the multipolar arrangement direction. As a result, the operating force for the actuator is reduced, and, on the other hand, the final fixation state of the plate-shaped signal transmission medium is configured to be good by maintaining the pressing force of the medium pressing portion.