31results about How to "Extended swing range" patented technology

An oil-immersed and high-pressure tripping switch structure comprises an operational apparatus, an arc-extinguishing cylinder, and an oil-shortage automatic tripping safety device wherein a sensory device detecting a fault current will trip open to displace a spring rebound pivoting-point, permitting a main spring to simultaneously actuate the release of contact points and the rotation of an operational handle therewith so that the operational handle is rotated to recover its primary angle so as to indicate the tripped/off status of the switch, facilitating the judgment and operation of workers. In addition, via a buoyant tube combined with an oil-retaining tank, the buoyant tube in case of oil-shortage can generate a sufficient downward pressure to activate the release of a tripping device so as to ensure the safety of the present invention in operation. Furthermore, a complex arc-interruption mechanism is applied so that the arc-extinguishing cylinder can efficiently break higher fault current thereby.

In a tank manufacturing method using a helical winding device that winds fiber bundles around a mandrel, the device includes: a first guide ring having an opening to pass the mandrel therethrough and placed around the mandrel with an axial center of the mandrel being taken as a center; and a plurality of first guide portions placed in the first guide ring along a circumferential direction around the axial center and configured to supply first fiber bundles to the mandrel. The method includes: moving the mandrel relative to the first guide ring along an axial center direction along the axial center such that the mandrel passes through the opening; and winding the fiber bundles around the mandrel while relatively moving the mandrel in the moving, by the first guide portions supplying the first fiber bundles to the mandrel with the first guide portions swinging in the circumferential direction.

The invention provides a fluctuation angle compensating system. The fluctuation angle compensating system comprises a driving system, a control system and a measuring system; the driving system comprises a driving motor, a small belt pulley and a large belt pulley; the effective load is fixedly connected with the large belt pulley and synchronously rotates with the large belt pulley; when in use, the working location of the effective load is set; the measurement system measures the fluctuation angle of the effective load in case of fluctuation at the location of the effective load, and the fluctuation angle value is transmitted to the control system; the control system calculates a compensating angle according to the fluctuation angle and controls the driving motor to reversely rotate in the compensating angle so as to return the effective load to the set working location. With the adoption of the fluctuation angle compensating system, the fluctuation angle speed in the visual axis direction of the load can be effectively isolated, and thus the stability of imaging in the visual axis direction can be improved, and the stabilizing precision is relatively high; the stabilizing platform has a wide application prospect in the fields of film, police application and military.

A cylindricity measuring device provided by the present invention comprises a workbench, the workbench comprises a mounting rack, the mounting rack is provided with a scanning structure, a linear driving mechanism and a rotation driving mechanism, the scanning structure is provided with a part accommodating hole, and the wall surface of the part accommodating hole is provided with a measuring head. The linear driving mechanism is used for enabling the to-be-measured part and the part containing hole to move relatively, the rotation driving mechanism is used for enabling the to-be-measured part and the part containing hole to rotate relatively, the measuring head is made to complete measurement of the peripheral face of the to-be-measured part, the workbench comprises a base, and the installation frame is installed on the base through an elastic connecting piece. And the elastic connecting piece is used for enabling the mounting rack to deflect relative to the seat body, so that when a to-be-detected part is put into the part accommodating hole, the mounting rack can deflect to a position where the part accommodating hole is aligned with the to-be-detected part. The cylindricity measuring device provided by the invention can effectively solve the technical problem in the prior art that parts are easily clamped when a cylindricity measuring device is matched with a robot for use.

The invention discloses a digging device of a mine digging type loader. The digging device comprises a base, a big arm base, a big arm, a big arm oil cylinder, a small arm, a small arm oil cylinder, an excavator bucket, an excavator bucket oil cylinder, a middle arm and a middle arm oil cylinder, wherein the middle arm and the middle arm oil cylinder are arranged between the big arm and the small arm, the rear end of the middle arm oil cylinder is hinged with the front end of the big arm through a pin roll, the front end of the middle arm oil cylinder is hinged with the rear end of the small arm through a pin roll, the middle arm oil cylinder is arranged between the middle arm and the big arm, the small arm oil cylinder is arranged between the middle arm and the small arm, one end of the middle arm oil cylinder is connected with the big arm through a pin roll, the other end of the middle arm oil cylinder is connected with the big arm through a pin roll, one end of the small arm oil cylinder is connected with the middle arm through a pin roll, and the other end of the small arm oil cylinder is connected with the middle arm and the small arm through pin rolls. By adopting the technical scheme provided by the invention, the digging distance of the mine digging type loader is increased, the rotation range is enlarged, the digging height is increased, no dead angle is remained in slagging-off and cleaning work, most of places in a tunnel can be dug, and the work efficiency is improved.

A garden shears has a handle, a first cutting member, a handgrip, a second cutting member, an intermediate member and at least one driving member. The handle secures the first cutting member and is pivoted to the second cutting member by the second shaft hole, the handgrip secures the intermediate member, the third shaft hole is pivoted to the first shaft hole, the first end of the driving member is connected to the second connecting aperture of the intermediate member, the second end is connected to the first connecting aperture of the second cutting member, therefore, the first shaft hole, the second shaft hole, the first end and the second end form a four-bar linkage state. In addition, the evading groove of the handle is configured for accepting the second end, thereby the expanded swing range increases the maximum opening angle of the blade and the knife anvil.

The invention provides an image sensor and a pixel array circuit thereof. The image sensor includes a pixel array circuit and a readout circuit. The pixel array circuit comprises a plurality of pixelunits. Each pixel unit comprises an optical sensor, a transmission circuit, a source following circuit and a voltage adjusting circuit, wherein the transmission circuit is coupled between the light sensor and a floating diffusion node, and is controlled by the transmission control signal to control charge transmission between the light sensor and the floating diffusion node; the source following circuit is coupled to the floating diffusion node and is used for converting the voltage of the floating diffusion node into an output voltage signal; the voltage adjusting circuit is coupled to the floating diffusion node and is used for adjusting the DC level of the voltage of the floating diffusion node so as to increase the swingable range of the output voltage signal. The readout circuit is coupled to the source following circuit of each pixel unit to receive the output voltage signal, and processes the output voltage signal to obtain a corresponding digital pixel value.

The invention discloses a rotary lamp, belonging to the field of illumination devices. The rotary lamp comprises a fixed table, a connection component and an illumination lamp which are sequentially connected, wherein the connection component comprises a plurality of sections which are connected end to end; one end of each section is fixedly provided with a connection part, and the other end of each section is fixedly provided with a spherical hollow part; each connection part consists of a conical disc, a connection post and a connection ball; each connection ball corresponds to the hollow part of the corresponding spherical hollow part; each connection post is fixed on the bottom of the corresponding conical disc; each connection ball is fixed on the upper part of the corresponding connection post. The rotary lamp provides a tool which is high in uncertainty and can activate the atmosphere for recreational activities.

An aperture adjusting device is disclosed. The aperture adjusting device includes a support frame, a gear ring, at least one blade, and a connector. The support frame includes an aperture, and a guiding slot. The gear ring is rotatably disposed on a first side of the support frame. The blade is swingably disposed on a second side of the support frame, and used to partially cover the aperture. The connector is fixed to the gear ring, and passes through the guiding slot to connect with the blade. The gear ring is adapted to rotate to make the connector move along the guiding slot to drive the blade to swing.

The invention discloses a composite solar seasonal heat storage heating device which is structurally provided with a front frame, a heat collection device, a heating device, a circulating water pipe and a supporting frame, the heat collection device is fixedly installed above the front frame, the heating device is embedded in the upper end of the supporting frame, the front frame is fixedly connected to the front side of the supporting frame in an embedded mode, and the heat collection device is located on the front side of the supporting frame. The telescopic ring can be driven to annularly stretch out and draw back through stretching out and drawing back of the connecting frame, so that the whole moving body continuously stretches out and draws back outside the heat generation column, concentrated heat generated by the heat generation column is conveniently diffused and driven, hot gas is accelerated to flow to the heat conduction frame, and the vertical rod is driven to stretch out and draw back to further increase the moving force of reciprocating displacement of the fan block. The elastic balls are driven by the toughness of the tough blocks to generate small-amplitude elastic power, certain swinging power is provided for the fan blocks, and the fan blocks are made to change while moving close to the heat conduction frame in a reciprocating mode, so that heat is accelerated to be driven to the heat conduction frame, the flow direction range of the heat is enlarged, and the efficiency of conducting heat to water in the water carrying tank is improved conveniently.

The invention relates to the technical field of sewing machines, in particular to a presser foot lifting and thread loosening mechanism and a sewing machine. The presser foot lifting and thread loosening mechanism of the sewing machine is arranged on the head part of a machine frame and comprises a presser foot lifting lever, a thread loosening plate, a presser foot lifting driving plate and a driving motor, and the presser foot lifting lever is hinged to the machine frame and used for lifting a presser foot; the thread loosening plate is used for pushing a thread clamping device to perform thread loosening action; the presser foot lifting driving plate is used for driving the presser foot lifting lever; the driving motor is used for driving a driving cam, and the driving cam pushes the presser foot lifting driving plate and the thread loosening plate to move; one end of the presser foot lifting driving plate is hinged and linked with one end of the thread loosening plate, and a certain distance is formed between the other end of the presser foot lifting driving plate and the presser foot lifting lever; and under the driving of the driving cam, the other end of the presser foot lifting driving plate is contacted with and drives the presser foot lifting lever after rotating towards the presser foot lifting lever by a certain angle. The problems of inconvenience and inflexibility in use and influence on working efficiency caused by integral forming in the original design are solved.