8results about How to "Small opening force" patented technology

The utility model discloses a lifting valve plate structure, a hydraulic lifting control device and a counterbalance forklift truck. The lifting valve plate structure comprises a valve body, a valve core and a one-way valve, wherein the valve core and the one-way valve are arranged on the valve body; the valve body is provided with an oil inlet channel, an oil return channel, an oil outlet channel and a valve body cavity channel, the valve element is provided with an oil passing groove, and the valve element axially moves relative to the valve body to control whether the oil passing groove is communicated with the oil inlet channel and the oil return channel or not. A spring cavity of the one-way valve is communicated with the valve body cavity channel; the one-way valve controls whether the oil passing groove is communicated with the oil outlet channel or not; the valve element is further provided with a damping channel communicated with the oil passing groove and / or the oil return channel, the valve element controls the damping channel to be communicated with the valve body cavity channel or not by axially moving relative to the valve body, when the oil passing groove is communicated with the oil inlet channel, the damping channel is not communicated with the valve body cavity channel, and when the oil passing groove is communicated with the oil return channel, the damping channel is communicated with the valve body cavity channel. According to the utility model, the one-way valve can be prevented from generating opening impact sound, and the operation micro-motion performance is improved.

The utility model provides a kind of civil aircraft suitcase hinge, comprising: rocker arm and base, rocker arm below is provided with mounting hole and camshaft, base below is rotatably installed with threaded adjusting shaft, another end of threaded adjusting shaft is rotatably installed in the middle of camshaft, the middle part of base is fixedly installed by rocker arm pivot through mounting hole, rocker arm forms four-bar linkage by camshaft and connecting rod, limiting block is integrated in base, set the minimum opening angle of case door.The hinge system of the utility model is through the innovative "axial compression+radial decoupling" design concept, combined with modular adjustable structure, while ensuring high reliability, realizes the accurate control of case door movement and the convenience of installation and maintenance, breaks through the technical bottleneck that aviation level hinge high reliability and small size are difficult to be compatible, has been successfully applied to multiple civil aircraft luggage compartment system, and has the technical versatility of extending to spacecraft hatch mechanism.

The present invention relates to the technical field of ship auxiliary machinery, and in particular to a modification structure and construction process of a hatch cover. The hatch cover comprises a hollow coaming, a cover plate arranged at the end portion of the hollow coaming, and a hinge device connected between one side of the cover plate and one side of the hollow coaming; the hollow coaming comprises four plane coamings connected together, and a circular arc coaming is transitionally connected between two adjacent plane coamings; the modification structure of the hatch cover comprises a pair of balancing cantilevers connected to the cover, one end of the balancing cantilever is connected to the side of the cover close to the hinge device, and the other end of the balancing cantilever extends toward a side away from the center position of the cover, and a balancing block is connected between the cantilever ends of the pair of balancing cantilevers. The present invention facilitates the opening and closing of the cover, and improves the quality of the butt welding between the hatch cover and the hatch deck of the ship.

The application discloses a sliding door lock system and relates to the technical field of sliding door lock arrangement. The sliding door lock system comprises an outer opening assembly, an inner opening assembly and a lock body. The outer opening assembly comprises a base, an outer opening handle arranged on one side of the base, a pin shaft arranged in the base, a first torsion spring arranged on the pin shaft and an outer opening rotating arm arranged on one side of the base. The inner opening assembly comprises an inner opening bottom plate, an inner opening rotating arm arranged on one side of the inner opening bottom plate, a rotating shaft arranged in the inner opening bottom plate and an inner opening handle arranged on one side of the rotating shaft. The application has the beneficial effect of omitting the conversion link of the inner opening device and directly controlling the lock body by the inner and outer opening handles. In order to realize the function, the outer opening handle assembly is improved to connect two cables to synchronously control the unlocking functions of the two lock bodies. A newly developed inner opening handle assembly is composed of a handle, a rotating shaft, a bottom plate, a rotating arm and other components and connects two cables to control the unlocking functions of the two lock bodies.

The application provides a door lock mechanism and a dishwasher adopting the same. The door lock mechanism comprises an execution mechanism and a trigger mechanism cooperating with the execution mechanism. The execution mechanism comprises a small load mechanism, a large load mechanism, a locking body and a switching device. The trigger mechanism comprises a driving mechanism, a push rod and a latch. The driving mechanism is connected to the push rod and can drive the push rod to move. The front end of the push rod is provided with the latch which cooperates with the locking body. The small load mechanism and the large load mechanism act on the locking body to provide the locking force of the latch. The switching device changes the acting mode of the small load mechanism and the large load mechanism on the locking body to realize the size switching of the locking force of the latch. The small load mechanism and the large load mechanism act on the locking body through the switching device, the opening and closing doors and the locking state have different load forces, the operation feeling is optimized, the fingers and other parts of the operator are prevented from being clamped when the door is automatically closed, the operator is protected, and the safety hazard is eliminated.

The present invention provides a toilet overflow device, a toilet water tank and a toilet. The toilet overflow device is sealed and connected to an overflow pipe in the toilet water tank, and comprises: a sealing part, which can seal and cover the first open end of the overflow pipe; a pressure relief part, which seals and cooperates with the sealing part, and the pressure relief part is configured to separate from the sealing part under the action of the first liquid buoyancy in the toilet water tank, so that external gas enters the overflow pipe; and under the action of the second liquid buoyancy in the toilet water tank, the sealing part is linked to separate from the first open end. The toilet overflow device, toilet water tank and toilet of the present invention can solve the problem of liquid leakage in the toilet water tank, and the structure is compact, and the opening force required to open the overflow pipe is smaller.

The invention discloses a fabricated light steel structure arc-shaped sill explosion door and a mounting method, the fabricated light steel structure arc-shaped sill explosion door comprises a door frame fixedly mounted on a building wall and a door leaf mounted on the door frame, and an arc-shaped sill is arranged at the bottom of the door frame; the door leaf comprises a steel framework, a front shell and a rear shell, and a door leaf sealing piece is installed at the bottom of the door leaf. A locking component is installed on a door leaf and comprises a main locking assembly, an upper driven locking assembly and a lower driven locking assembly, the upper driven locking assembly and the lower driven locking assembly are arranged at the upper end and the lower end of the main locking assembly, a handle is installed on the main locking assembly, and the upper driven locking assembly is connected with the main locking assembly through a first connecting rod. The lower driven locking assembly is connected with the main locking assembly through a second connecting rod. The explosion-proof door has the advantages of light structure, strong stability and high production efficiency, is convenient to install and construct, is convenient for vehicles to pass through in an open state, has various locking states in a closed state, can realize locking by only needing one handle to realize multi-mode conversion of flat, urgent and battle, and is simple to operate.

The utility model discloses a turning tongue structure of a lock. The problems that an existing turning tongue transmission structure is complex and unreliable in action are solved. The device comprises a shell, the turning tongue body is arranged in the shell, and the turning tongue body has a first state in which the turning tongue body linearly reciprocates relative to the shell and a second state in which the turning tongue body relatively rotates when the turning tongue body is opened; the turning tongue limiting piece is arranged in the shell and used for limiting turning of the turning tongue body; the turning tongue body is in linear sliding fit with the turning tongue limiting piece when being limited and turned by the turning tongue limiting piece; and the limiting elastic piece is arranged in the shell, is connected with the tongue turning limiting piece and has a movement trend of driving the tongue turning limiting piece to tend to the first position. The turning tongue has the advantages that due to the arrangement of the turning tongue body, the turning tongue body can rotate freely after the turning tongue limiting piece is unlocked, door opening and door closing are facilitated, time and labor are saved, operation is easy, the turning tongue body can achieve the door locking function through locking and limiting of the turning tongue limiting piece, the structure is simple, opening force is small, and the adaptation range is wide.