16results about How to "Small operating force" patented technology

This utility model discloses an ultra-high pressure manual hydraulic pump that reduces the operating force of the handle, including an oil tank, a pump core assembly connected to the oil tank, a handle rotatably mounted on the pump core assembly, and a handle mounted on the handle; characterized in that the pump core assembly includes a valve block, a front seat mounted on the valve block, a dual-speed pump core, a low-pressure safety valve, and a high-pressure safety valve; the valve block is provided with a main oil suction channel, a large pump core oil suction channel and a small pump core oil suction channel connected to the main oil suction channel and the dual-speed pump core, and a return oil channel connecting the main oil suction channel and the low-pressure safety valve. This utility model uses the dual-speed pump core to press the hydraulic oil. The hydraulic oil in the large pump core oil suction channel and the small pump core oil suction channel opens the low-pressure safety valve and returns to the oil tank, keeping the low-pressure safety valve open. When the dual-speed pump core presses down again, the hydraulic oil in the large pump core oil suction channel directly returns to the oil tank through the low-pressure safety valve, thereby reducing the operating force of the handle.

The application discloses a manual zero-gravity skeleton with a manual leg support, which comprises a lower slide rail fixed to a vehicle body, an upper slide rail in sliding cooperation with the lower slide rail, a seat frame skeleton fixedly connected with the upper slide rail, a backrest skeleton, and an angle adjuster connecting the seat frame skeleton and the backrest skeleton. The application realizes zero-gravity adjustment through a pure mechanical structure, does not depend on a vehicle electrical system, has long service life and high stability of mechanical components, and can still adjust the seat when colliding and being powered off, thereby improving passive safety. Through linkage unlocking and pneumatic buffering, posture switching is smooth at a constant speed, and the switching is completed within 2-3 seconds, so that balance response speed and comfort are achieved. The leg support is driven by a torsional spring, is convenient and labor-saving, and supports a comprehensive leg support mechanism, the lifting power of which is provided by the torsional spring, is automatically positioned after being unlocked, reduces operation force, and realizes one-key unfolding. In cooperation with the zero-gravity posture, the application provides comprehensive support from legs to back for a passenger, and effectively disperses body pressure.

The utility model discloses a large door hinge with a bearing, which comprises a fixed part, a movable blade, a screw and a nut, the movable blade is movably connected on the fixed part through the screw and the nut, and the bearing is arranged in the fixed part. The movable blade is provided with a reinforcing rib, and the fixed part and the movable blade are provided with a plurality of first installation holes and second installation holes which are used for being installed on a wall and a door respectively. According to the door hinge, the bearing is arranged in the fixing piece, so that friction between the movable blade and the fixing piece is reduced, the service life is prolonged, and operation is more convenient; the structural strength of the movable blade is enhanced through the reinforcing ribs, the installation stability is improved through the design of the multiple installation holes, the problems existing in an existing large door lock are effectively solved, and the large door lock is suitable for installation and use of various large doors.

The invention relates to an electric connection device which comprises a bridge-type contact, and a busbar socket and a cutter body socket which can be elastically clamped are formed on the two sides of the bridge-type contact respectively. An upper support and a lower support, the upper support is installed on the contact above the knife body socket, the lower support is installed on the contact below the knife body socket, a guide socket is formed between the upper support and the lower support, and the guide socket is located on the front side of the knife body socket; the two sides of the upper support are respectively provided with an upper abutting portion, the two sides of the lower support are respectively provided with a lower abutting portion, and the upper abutting portion and the lower abutting portion on the same side correspond to each other up and down. The two guide top plates are fixed to the two sides of the body slotting tool respectively, the upper side and the lower side of the front end of each guide top plate are each provided with a guide protruding block, and each guide protruding block is provided with a front inclined guide face and a rear inclined guide face. Friction loss between the body slotting tool and the bridge type contact is reduced, and the service life of the electric connection device is prolonged.

The utility model provides a kind of middle door circuit breaker emergency opening device, it is related to circuit breaker technical field, including: switch board, knob rotationally arranged in cabinet door, transmission lever and transmission assembly.The transmission assembly is linked by mounting seat, displacement rack, main drive gear, driven gear and segmented lifting arm, the rotary motion of knob is converted into the vertical lifting action of lifting arm, and drive switch blade switching rod triggers opening;The segmented lifting arm top end is provided with switch blade switching rod with silicon rubber elastic buffer sheet, and impact force is dispersed by arc recessed contact surface;Insulating isolation ring is additionally provided at knob connection, to ensure high-voltage operation safety.The utility model solves the problems of low transmission efficiency, large operating torque, easily damaged components by opening impact and insufficient insulation protection in high-voltage environment of traditional emergency opening device, realizes single-hand operation quick opening, and reduces mechanical wear and tear and risk of accidental touch.

The invention provides an oil return structure, an oil return method, an oil return system and hydraulic equipment, the oil return structure comprises a first pressure relief part, a second pressure relief part and a driving part, the first pressure relief part blocks an oil outlet of a cylinder body, the first hydraulic part comprises a flow guide channel, and the second pressure relief part blocks the flow guide channel; one end of the driving part penetrates through the flow guide channel to abut against the second pressure relief part, the driving part can move back and forth along the flow guide channel, and after the driving part fixedly jacks the second pressure relief part to a preset height, part of the area can abut against the first pressure relief part, and the first pressure relief part is jacked up. According to the oil return structure, when a worker operates the oil return button to enable the driving piece to move to jack up the second pressure relief piece and the first pressure relief piece in sequence to enable the hydraulic equipment to return oil, the needed operation force can be greatly reduced, namely, the worker can complete oil return operation in a very labor-saving mode, meanwhile, the operation efficiency of the hydraulic equipment can be improved, and the working efficiency of the hydraulic equipment is improved. And the design of the hydraulic equipment is more reasonable.

The application relates to the technical field of automobile seat unlocking switches, and discloses a high-stability automobile seat unlocking switch which comprises a switch main body, a unlocking rotating shaft is arranged in the switch main body, the unlocking rotating shaft extends to the outside of the switch main body, an unlocking assembly is arranged at the end, away from the switch main body, of the unlocking rotating shaft, and the unlocking assembly comprises a rotating disc. The high-stability automobile seat unlocking switch is characterized in that: the handle is pulled to drive the rotating disc to rotate, the limiting plate is driven to move, the limiting hole is moved to the position of the limiting rod, the handle is limited through the limiting hole which is sleeved on one end of the limiting rod, the unlocking assembly is kept in the unlocking state, the unlocking handle is stably limited in the unlocking state, the user does not need to continuously pull, the operation force is saved, the unlocking state is high in stability, the unlocking handle is prevented from being reset due to a torsional spring and other reset assemblies, and the safety of the seat is improved.

The invention discloses an all-terrain anti-skid shoe sole which comprises a shoe sole body and at least one set of overturning components installed on the shoe sole body in an overturning mode, and the overturning components can overturn relative to the shoe sole body so as to adapt to different terrains. The overturning component comprises a supporting frame, protrusion matching parts and key bodies, the protrusion matching parts are arranged on the two sides of the supporting frame and used for achieving running fit, and the key bodies are in running fit with the protrusion matching parts. The overturning component which can be installed in an overturning mode is arranged on the shoe sole, so that the supporting frame can be rapidly overturned relative to the shoe sole; therefore, the shoe sole can rapidly adapt to various complex terrains such as ice and snow, mud and rocks, and potential safety hazards caused by poor terrain adaptability of an existing fixed type anti-skid shoe sole are avoided. And the technical contradictions of inconvenience in operation, insufficient durability and poor mechanism stability caused by structural homogenization of the existing reversible shoe sole are overcome.

The present application relates to a kind of gangway door retraction device, belong to gangway door technical field, it includes gangway door lock, buffer mechanism and unlocking mechanism, wherein, gangway door lock includes lock seat assembly, lock box assembly and prompt component, lock seat assembly includes lock seat and lock pin, lock box assembly includes lock box and lock hook, prompt component includes microswitch, double-end swing arm piece and elastic piece.The present application is by being set up prompt component to make operator can accurately understand whether gangway door has been unlocked when carrying out lower operation and accurately understand whether gangway door has been completely retracted when carrying out retraction operation, to be able to prevent operator to exert force when gangway door is still in the state of not unlocking or not completely unlocking, simultaneously can prevent gangway door to appear retraction not in position condition, to make operator can better carry out the retraction operation of gangway door.

The utility model relates to an acid and alkali resistant door lock device. Comprising a lock rod, a deflector rod device, a packaging box and a handle, the lock rod is of a telescopic structure, is made of acid and alkali resistant engineering plastics and is matched with a clamping groove in the door body in a clamping mode. The rod shifting device is arranged in the packaging box, is connected with the lock rod through a mechanical linkage mechanism and is used for controlling the telescopic action of the lock rod; the packaging box adopts an integrally-formed corrosion-resistant shell and wraps the lock rod and a transmission part of the rod shifting device. And the handle is connected with the deflector rod device through a rotating shaft, and anti-skid lines are arranged on the surface. The technical problems that in the prior art, a common door lock is prone to being corroded and damaged, equipment cannot be normally opened and closed and cannot be safely protected, and a magnet and a door stopper installed on a door plate in the prior art need to be fixed through metal screws and are corroded and damaged in the acid-base environment are solved.

The utility model relates to valve technical field, concretely relates to a regulating valve with lining, including valve body, the first lining is arranged in the valve body, and the inner wall of valve body is provided with a plurality of dovetail groove convenient for fixing first lining, the valve rod is inserted in the bonnet, the lower place of valve rod is sleeved with the valve core, the top surface of valve core is provided with the pouring hole, the outside of valve core is provided with the ring groove, the bottom of valve core is provided with the self -tightening mechanism, the utility model discloses through dovetail groove, pouring hole and ring groove, make the lining material and valve body form reliable connection, strengthen the fixed stability of lining, prolong the service life of valve, reduce the metal material amount, reduce the foundry cost, still effectively reduced the operating force needed to control valve rod, through the self -tightening mechanism cooperation valve core common sealing valve seat, the sealing performance of remarkable promotion, shared the valve -in -medium pressure that valve rod bore, improved the pressure -bearing capacity and reliability of valve.

The utility model discloses an automobile seat gear transmission limiting mechanism, which belongs to the technical field of automobile seats, and comprises an outer shell, a first soft cushion and a second soft cushion, a mounting plate is fixed between the first soft cushion and the outer shell, the left side and the right side of the mounting plate are respectively provided with a notch, and the first soft cushion and the second soft cushion are fixed on the outer shell. Two movable grooves are formed in the lower portion of the front side of the mounting plate and are symmetrically arranged, and first connecting pieces are fixed to the positions, close to the two movable grooves, of the front side of the mounting plate. The gear shifting stroke is a 90-degree efficient rotation angle, operation space is saved by 25%, a second transmission wheel 45CrMo quenched gear is subjected to laser modification, operation force is reduced by 30%, gear positioning force is only 3.5-5.0 N and is reduced by half compared with traditional gear positioning force 7-10 N, hand feeling lightness is + 50%, the problem that a traditional gear shifting stroke is a 120-degree rotation angle, operation space is small, and meanwhile, the gear shifting stroke is not prone to being damaged is solved. And the traditional gear positioning force is 7-10N, the feeling resistance is large during operation, and the operation is not flexible.

The application discloses a stop valve and relates to the technical field of stop valves, which comprises a valve body, a valve cover, a valve rod, a packing, a valve clack, a sealing cavity, a sealing element and a backflushing element. The valve body is provided with the valve cover at the top end. One end of the valve rod is slidably penetrated through the bottom end of the valve cover and extends to the inside of the valve body to be connected with the valve clack. The other end is threadedly connected with the top end of the valve cover. The sealing cavity is arranged between the valve clack and the inner wall of the valve cover. The valve clack and the inner wall of the valve cover are connected through the sealing element. The valve rod outer wall and the valve cover inner wall are connected through the packing. The backflushing element is arranged on the valve cover. The application realizes stable shunting and sufficient supply of the medium through double shunting channels, guarantees stable medium flow and balanced pressure of the medium entering the sealing cavity, forms stable reverse pressure in the sealing cavity, efficiently balances the medium force when the valve body is closed, reduces the operation force of the operator rotating the hand wheel and realizes easy closing of the valve body.

The utility model discloses a kind of car door inwards turning handle, including handle base, handle groove being provided on it towards car door surface;Handle body, with the closing position closed in handle groove, the opening position being retracted into operating space, and the unlocking position being retracted relative to opening position, the handle body is in opening position and unlocking position and is exposed handle groove;Transmission assembly, including electric actuation's push block, and transmission gear in the rotating path of push block, the handle body line is equipped with with synchronous rotation intermediate gear, the intermediate gear and transmission gear keep engagement;The push block, transmission gear, intermediate gear sequentially constitute electric opening path, the handle body, intermediate gear, transmission gear sequentially constitute emergency opening path, the handle body is in emergency opening path and is retracted to opening position by external force actuation.

This utility model provides an environmentally friendly and wear-resistant car floor mat, belonging to the field of car floor mat technology. It includes an upper floor mat with several connecting units and a lower floor mat with several snap-fit ​​units. The connecting units include an upper snap with a sliding hole; a snap block slidably disposed within the sliding hole, with a positioning block at its bottom having a second inclined portion, and a reset block on its outer wall; an unlocking block fitted onto the snap block, with a connecting block fixed to the inner wall of its through hole, the connecting block being embedded in a guide hole in the snap block, and an unlocking spring between the connecting block and the bottom wall of the guide hole; a reset block embedded in a reset groove in the inner wall of the sliding hole, and a reset spring between the reset block and the bottom wall of the reset groove; the snap-fit ​​units include a lower snap with a locking groove, the side wall of which has two symmetrical adjustment grooves; an adjustment block slidably disposed within the adjustment groove, with an adjustment spring between it and the inner wall of the adjustment groove, and the outer end of the adjustment block having a first inclined portion; and the outer wall of the unlocking block having a third inclined portion. This utility model effectively solves the problem of damage from violent disassembly, saves effort during operation, and allows for quick installation and disassembly.

The circuit breaker comprises an operating mechanism and a contact unit, the contact unit comprises a moving contact assembly and a static contact, the operating mechanism comprises a linkage lever, a support, a rocker assembly, a trip, a lock and a reclose pivotally arranged on the support respectively, a main spring arranged between the rocker assembly and the linkage lever, a first crank pivotally arranged on the trip and in position cooperation with the trip and the linkage lever, and the linkage lever is connected with the contact through a transmission assembly; the circuit breaker further comprises a quick operation structure, the quick operation structure comprises a first push rod, a second push rod and a third push rod, the first push rod is pivotally arranged and is in driving cooperation with the moving contact and the second push rod respectively, the second push rod is pivotally arranged and is fixedly connected with the third push rod, and the reclose is provided with a reclose driven arm in driving cooperation with a driving part of the third push rod; the circuit breaker of the present application has the advantages that the transmission level of the quick operation structure is reduced, the reclose of the operating mechanism is driven by the quick operation structure, the moving contact is driven through the quick transmission of various components, and the quick operation of the reclose is realized.