15results about How to "Prevent over-rotation" patented technology

The utility model discloses a valve mechanism of micro -fluidic chip, including the upper valve disc of installing in the inside of micro -fluidic chip, the integral molding of a plurality of connecting columns of upper valve disc bottom end and the integral molding of a plurality of connecting column bottom end lower valve seat, the inside of lower valve seat is provided with a plurality of both ends all through to the arc drainage cavity of lower valve seat outside. Upper valve disc, lower valve seat in the utility model are driven by outside micro -motor and rotate in micro -fluidic chip, and the arc drainage cavity in lower valve seat is communicated with the corresponding flow passage in micro -fluidic chip, and the elastic retreat -stopping structure, the anti -slip groove maintain the rotation angle of upper valve disc, lower valve seat.

The utility model belongs to the field of office table provides a kind of office table with lightweight folding table leg, including table board, the bottom of table board is provided with multiple mounting blocks, corresponding two table boards are rotatably provided with table leg between, the inside upper end of table leg is provided with support plate, and the limiting assembly for being used to fold and limit table leg is provided on support plate;The utility model is provided with limiting assembly, connecting block and limiting block, table leg is rotatably connected with mounting block by connecting shaft, under unfolded state, plug rod and limiting hole one cooperation locking, in combination with the limiting of connecting block and limiting block in sleeve, the office equipment on table board can be stably carried, prevent table leg from shaking or excessive rotation in use process, ensure the stability and security when working;Under folding state, plug rod and limiting hole two cooperation locking, table leg can continue to be limited locking, prevent table leg from shaking after folding, while greatly reduce the stereoscopic height of office table, then it is convenient to store and transfer table board.

The utility model discloses a kind of ratchet power-saving mechanism and its high branch shears, which belong to garden pruning machinery technical field.It mainly includes support seat, the support seat is equipped with ratchet power-saving mechanism, support arm is fixedly connected with support seat, support arm and force applying mechanism are equipped with force applying reset component, support seat and force applying mechanism are connected with pull rope through pulley, pruning knife is equipped with cutting edge at the end away from sector gear two, support arm is fixedly connected with the knife rest matched with cutting edge, pruning knife is equipped with blade reset component between the position away from rotation center and support arm.The utility model adds ratchet pawl mechanism one and ratchet pawl mechanism two, supports the segmented operation of multiple "force-reset-again force", does not need to exert large force singly, adapts different physical force user, especially convenient for high altitude branch ground shearing.

The utility model discloses a car brush of washable angle adjustable, including handle and the brush head of being located handle one end, the brush head is connected through a set in the handle casing, the casing with the brush head is hinged through first hinged axle, the casing is equipped with the limit hole of annular array setting with first hinged axle as the center, the position of casing near first hinged axle is equipped with second hinged axle, when second hinged axle inserts into the limit hole, can with first hinged axle angle of brush head fixed, the casing is equipped with the trigger assembly of can make axial both ends of second hinged axle close or away simultaneously, the casing is equipped with the locking piece for making trigger assembly keep steady state under no external force effect. The utility model has the advantage that can realize the state switching of angle fixed control or maintain free swing of brush head.

The utility model relates to the field of automobile parts, concretely relates to an electronic mechanical double unlocking structure, including handle seat, handle that rotates set on handle seat, micro -switch and be used for making handle reset's first gear spring, be equipped with rotation part on handle, and the probe of micro -switch is contacted with rotation part, still including swing claw that rotates set on handle seat, the second gear spring of swing claw rotation resistance, swing claw's end is the opposite end, and the opposite end is opposite with the tail end of handle, when handle rotates in the rotation range of electronic unlocking, the tail end of handle and the opposite end are in the separate state, when handle rotates in the rotation range of mechanical unlocking, the tail end of handle and the opposite end are in the opposite state, through the scheme of the application, realize first gear spring and second gear spring different shaft setting, facilitate electronic mechanical double unlocking structure's assembly, reduce assembly difficulty.

The utility model discloses an elevator triangle lock which belongs to the technical field of elevators and comprises a fixing seat, a lock sleeve, a lock rod, a fixing piece, a locking piece, a reset torsion spring, an unlocking support and a knock-out rod, the fixing seat is bent upwards to form a bent part, the bent part is provided with a torsion spring end groove, the unlocking support is provided with a torsion spring hole, and the knock-out rod is connected with the lock sleeve. One end of the reset torsion spring is clamped with the torsion spring end groove, the other end of the reset torsion spring is in linkage with the torsion spring hole, and the unlocking support is provided with a limiting plate in linkage with the bent part. According to the triangular lock, the bent part which is bent upwards is arranged on the fixed seat, the end part of the bent part is parallel to the bottom plate of the fixed seat, and the limiting plate which is bent downwards is arranged at the edge of the unlocking bracket, so that when the triangular lock is unlocked, the end part of the bent part is propped against the limiting plate, and the limiting capability of the bent part on the unlocking bracket is improved; in addition, the reset torsion spring is arranged in the middle of the lock rod in a penetrating mode, limiting of the unlocking support is further improved, efficient reset of the unlocking support can be achieved, and the stability of the triangle lock is improved.

An object of the present application is to provide a vehicle control device capable of sufficiently suppressing excessive rotation of an engine. A vehicle control device includes a determination section that determines whether an engine mounted on a vehicle is excessively rotating, and a control section that, in a case where the determination section determines positively, performs a torque reduction process that reduces the torque of the engine as compared with a case where the determination section determines negatively, the control section performing the torque reduction process by reducing the torque of the engine in stages or gradually.

The train comprehensive control cabinet comprises the cabinet body, the cabinet door and the cabinet door limiting assembly and further comprises the first installation plate, the second installation plate, the first connecting rod and the second connecting rod, when the cabinet door is opened, the ball at the other end of the second connecting rod can be connected with the clamping groove in the inner wall of the first connecting rod in a matched and clamped mode, and therefore the cabinet door is kept at a set angle. Therefore, other objects are prevented from being touched; when the cabinet door is closed, the rolling balls are moved out of the clamping grooves by using large force; in addition, the ball assembly comprises a ball, a spring and a blocking block, during assembly, the ball and the spring are sequentially installed from the lower portion of the installation hole, then the blocking block is in threaded connection with the bottom of the installation hole, the top of the ball extends out of the installation hole under the acting force of the spring, and therefore the ball assembly can abut against the clamping groove, and the ball assembly has the advantages of being simple in structure and rapid and convenient to assemble.

The utility model relates to a damper and discloses a gear damper, which comprises a mounting seat (10), a positioning hole (101) is arranged on the mounting seat (10), an elastic body (11) made of high polymer materials is mounted in the positioning hole (101), the elastic body (11) is radially limited in the positioning hole (101), a through mounting hole (111) is arranged on the elastic body (11), a connecting shaft (12) is in interference fit with the mounting hole (111), and the elastic body (11) and the connecting shaft (12) rotate relatively. The high polymer material serves as a damping material, has good elastic buffering and deformation recovery capacity, can absorb impact energy in the rotating process through self elastic deformation, reduces rigid friction between the connecting shaft and the elastic body, and accordingly improves the stability of relative rotation.

The utility model relates to a kind of angle adjustable snow machine, with movable base, multiple rollers are equipped on movable base, snow making cylinder is equipped on movable base, the snow spraying end of snow making cylinder is equipped with water ring and multiple spray pipes, the snow spraying end of snow making cylinder is further equipped with air ring and multiple, air pipe, the tail end of snow making cylinder is equipped with air blower, adjusting assembly is equipped on movable base, adjusting assembly includes drive motor, rotating platform and rotating support, driving gear is fixedly arranged on connecting shaft, adjusting rotating rod is equipped on rotating platform, driven gear is equipped on the lower end of adjusting rotating rod, thread part is equipped on adjusting rotating rod, limit block is equipped on the top of adjusting rotating rod, transmission block is sleeved on thread part, threaded hole is equipped on transmission block, link is equipped on the side of transmission block, side edge sliding slot is equipped on the side wall of snow making cylinder, side edge sliding block is slidably arranged in side edge sliding slot, link is rotatably connected on side edge sliding block.The utility model structure is ingenious, convenient and practical.

The application discloses a high-elasticity polyurethane material preparation device and a process thereof, and relates to the technical field of polyurethane preparation. The device comprises a processing frame, lifting cylinders are installed on both sides of the processing frame, and a swing mechanism is installed on one side of the processing frame; a connecting frame is connected with the two groups of lifting cylinders, and mixed components are installed on the lower side of the connecting frame in parallel; a rotating frame is rotatably connected to the inside of the processing frame, and one end of the rotating frame is connected with the output end of the swing mechanism; a plurality of mixed kettles are installed in the inside of the rotating frame, and the distribution mode and the number of each mixed kettle are the same as those of the plurality of mixed components. Compared with the prior art, the device is provided with a pushing component on the lower side of each mixed kettle, and the mixed kettle and the mixed component adopt a separation structure. After the mixed kettle and the mixed component are separated, the pushing component can be used to push the raw materials in the inside of the mixed kettle, so that too much raw materials are prevented from adhering to the inside of the mixed kettle.

The utility model relates to an adjustable photovoltaic panel cleaning device, belong to cleaning equipment technical field, including frame body, crawler assembly, control box, support arm plate, adjusting arm plate, cleaning support, cleaning brush roller, cleaning drive mechanism, walking drive component, hinge pin, limiting bolt and limiting fixed pin, be equipped with the rotation hole that coordinates with hinge pin on adjusting arm plate, be equipped with the limiting strip shape arc hole and limiting strip shape open slot on adjusting arm plate, limiting fixed pin and limiting bolt respectively extend into limiting strip shape open slot and limiting strip shape arc hole inside. The utility model limiting bolt and limiting strip shape arc hole, limiting fixed pin and limiting strip shape open slot's corresponding activity cooperation, can limit the rotation range of adjusting arm plate, avoid excessive rotation, can rotate and lift after cleaning brush roller is contacted, prevent jam, and this structure when cleaning, cleaning brush roller will not along with cleaning and separate photovoltaic panel, guarantee cleaning effect.

The lock machining laser cutting device comprises a machining table, a blanking groove is formed in the top end of the machining table in a penetrating mode, a hinge is fixedly connected to the bottom end of the machining table, a bearing plate is fixedly connected to one end of the hinge, and a limiting piece enabling the bearing plate to be fixed in the blanking groove is arranged on the side, away from the hinge, of the machining table; a reset piece capable of driving the limiting piece to reset is arranged at one end of the limiting piece; the two sets of limiting pieces are symmetrically arranged and are matched with guiding of the T-shaped sliding groove and the sliding block, movement of the limiting frame is kept stable all the time, offset clamping stagnation is avoided, the structural design of the right-trapezoid-shaped guiding block can stably support the material bearing plate to keep horizontal, supporting can be quickly relieved during movement, the material bearing plate can smoothly and obliquely discharge materials, and the material bearing plate can stably and stably move. And meanwhile, the [-shaped limiting frame can limit the rotation angle of the material bearing plate, excessive rotation of the material bearing plate is avoided, and the discharging smoothness and the device structure stability are guaranteed.

The utility model discloses an electrocardiogram electrode holder, which relates to the technical field of medical equipment and comprises a first clamping arm, a second clamping arm and an electrode plate arranged on one side, close to the second clamping arm, of the first clamping arm, and bevel edge blocks are arranged on the opposite sides of the first clamping arm and the second clamping arm. The relative distance between the sides, close to the clamping arm, of the two bevel edge blocks is smaller than the relative distance between the sides, away from the clamping arm, of the two bevel edge blocks, clamping columns are arranged on the slopes of the opposite sides of the two bevel edge blocks at equal intervals, the clamping columns of the two bevel edge blocks are restrained through clamping blocks, clamping grooves are formed in the clamping blocks, and the clamping columns can be rotationally attached to the clamping blocks through the clamping grooves. And the clamping blocks restrain the positions of the clamping columns through hoops, and elastic pieces are inserted into the clamping blocks through second inserting grooves formed in the clamping blocks. And the position of the clamping block is adjusted according to the thicknesses of the wrists and ankles of the current person, so that the clamping block is clamped at the size suitable for being used by the current person, and the wrists or ankles with different thicknesses can be conveniently clamped.

The utility model discloses a kind of measuring devices for water conservancy and hydropower engineering belongs to measuring device technical field, its technical scheme main points include adjusting structure, the top of adjusting structure is fixedly connected with support structure, the outside of support structure is rotatably connected with water level gauge body, two fixed blocks are respectively arranged at the both sides of support structure bottom, the outside of fixed block is rotatably connected with the inside of support piece, the front side of support piece top is bolted with the bottom of rotating part, the inner wall of rotating part is rotatably connected with the bottom of adjusting rod outer wall, the outer wall of adjusting rod is rotatably connected with the inner wall of fixed block, in the water level measurement operation of existing water conservancy and hydropower engineering, traditional device is generally plane support frame, it is difficult to flexibly adjust inclination angle, when facing different gradient river bank or dam, cannot conform to measuring surface, prone to angle deviation to lead to reading inaccuracy, affect the accuracy of measurement data.