8results about How to "Avoid excessive rotation" patented technology

The steering engine holder comprises a holder body, a mounting mechanism is arranged at the bottom end of the holder body, the mounting mechanism comprises a fixing frame, a screw, a fixing plate, a connecting rod and a positioning mechanism, the fixing frame is connected to the bottom end of the holder body, the screw is in threaded connection in the fixing frame, the fixing plate is arranged on one side of the fixing frame, and the connecting rod is arranged on the other side of the fixing frame. The connecting rod rotates in the fixing plate and is fixedly connected with the screw rod, the positioning mechanism comprises a fixing sleeve, a mounting ring, sliding holes, positioning blocks, an abutting rod, an abutting sleeve and a positioning groove, the fixing sleeve is fixed to the outer wall of the fixing plate, the mounting ring is fixed to the outer wall of the connecting rod, the multiple sets of sliding holes are distributed in the mounting ring, and the positioning blocks move in the multiple sets of sliding holes. According to the mounting mechanism, the cooperative design of the screw rod, the fixing frame and the fixing plate is adopted, accurate control over the screw rod is achieved by rotating the connecting rod, and therefore the fixing plate conducts accurate linear motion along the limiting rod, the camera shooting equipment can be firmly fixed to the holder body, and mounting convenience is remarkably improved.

This utility model provides a combined external scaffolding ladder, belonging to the field of ladder technology. It includes a first ladder, a second ladder, a third ladder, and two hooks. The top of the first ladder is provided with a first hinge, and the bottom of the second ladder is provided with a second hinge. The first hinge and the second hinge are hinged together by a pin to form a folded shape. Angle steel limiting connectors are detachably provided on both sides of the top of the first ladder. The third ladder is movably located in front of the first or second ladder. The top ends of the two square tubes of the second ladder are provided with a first pair of connecting pipes, and the top ends of the two square tubes of the third ladder are provided with a second pair of connecting pipes identical to the first pair of connecting pipes. The two hooks are detachably provided on the angle steel limiting connectors, the first pair of connecting pipes, or the second pair of connecting pipes. This invention solves the problems of inconvenient assembly and disassembly in the prior art, and the fact that hooks or anchor points are usually only provided on one ladder section, making it impossible to flexibly match new support structures and reducing overall stability.

The present application provides an air control valve for a fuel cell vehicle, comprising: a valve housing formed with an air flow path; a valve member configured to selectively open or close the air flow path; and a drive unit configured to linearly operate the valve member such that the valve member linearly moves from a first position closing the air flow path to a second position opening the air flow path, whereby beneficial effects of improved sealing performance and improved stability and reliability can be obtained.

The utility model discloses a kind of metal tank auxiliary material pouring device, including base, water outlet control assembly, angle adjusting assembly, overturning assembly and receiving basin, the water outlet control assembly is fixed on the one corner of base upper end with screw thread, the receiving basin is fixed on the position of base upper end near middle part, and the receiving basin is opposite with one end of water outlet control assembly Setting, the angle adjusting assembly is fixed in the position near water outlet control assembly with screw thread, the overturning assembly is arranged in the inboard of angle adjusting assembly.The utility model can mechanically realize the angle adjustment for metal tank, reduce the strength of artificial operation, help to improve the material pouring efficiency, and can be actively carried out after rotating to a certain angle Linkage solenoid valve water, complete the cleaning inside metal tank, further reduce the strength of artificial operation, improve operation efficiency.

The utility model relates to an embedded hinge and a folding LED display screen advisement player, the embedded hinge comprises a first fixed seat and a second fixed seat which are arranged in a mirror symmetry manner, and an arched first hinge and an arched second hinge which are assembled in a reverse staggered and stacked manner, the first hinge is rotatably connected with the first fixed seat, and the second hinge is rotatably connected with the second fixed seat. The first hinge body and the second hinge body are rotationally connected through the rotating middle shaft, guide grooves are formed in the first fixing base and the second fixing base, guide shafts are arranged at the ends of the first hinge body and the second hinge body, and the guide shafts can slide in the guide grooves, so that the hinges are turned over in a specified track. According to the embedded hinge, the rotation precision of the hinge is ensured through the first hinge and the second hinge which are assembled in a staggered and stacked mode in the reverse direction, the folding LED display screen advertising machine adopts the embedded hinge, the overturning and folding functions of the folding LED display screen advertising machine are achieved, the space utilization rate is increased during transportation, and the transportation cost is reduced.

The utility model relates to a water conservancy project pipeline auxiliary supporting device belongs to pipeline support technical field. This water conservancy project pipeline auxiliary supporting device, include: mount and clamp, the clamp with mount nut realizes fixed connection, the both sides of the top of mount are all provided with the bolt of two quantity, a plurality of reinforcing mechanisms, the reinforcing mechanism includes the mounting ring, the plug-in rod and the slide rail with mount installation, the reinforcing mechanism is installed after bolt to mount and wall, through with a plurality of round bar and a plurality of card hole one -one is connected, and utilizes the plug-in rod to fix the mounting ring, is favorable to avoid reinforcing mechanism in the use process mounting ring drive a plurality of round bar to rotate, under the interaction of round bar, card hole, connecting ring and fixed ring, avoid bolt to mount to mount process and rotate and appear loose, guarantee the stability of bolt to mount to mount, to strengthen the stability of mount to support the fixed stability of pipeline.

The utility model relates to the technical field of semiconductor optical chip packaging, and discloses a semiconductor optical chip packaging testboard, which comprises a workbench, the side wall of the workbench is fixedly connected with a side plate, the inside of the side plate is slidably connected with a sliding table, the bottom of the sliding table is provided with a detection head, and the upper surface of the workbench is fixedly connected with a placing box. A fixing assembly is arranged on the side wall of the containing box, a dismounting and mounting assembly is arranged below the sliding table, and an adjusting assembly is arranged on the side wall of the side plate. The fixing assembly comprises a clamping plate, the side wall of the clamping plate is slidably connected to the side wall of the containing box, and the side wall of the containing box is fixedly connected with a support. According to the utility model, the rotating plate is driven by the motor III, the connecting strip drives the sliding plate and the clamping plate to realize self-adaptive clamping and releasing of the chip, and the electric push rod is matched to push the push plate to jack up the chip, so that the chip is fixed reliably and is convenient to take and place, and the stability and the operation safety in the chip testing process are improved through the structure.

This utility model relates to the field of waste tobacco detection technology, and particularly to an online waste tobacco detection device adapted to screw conveyor type cigarette machines. It includes a base plate, a weighing sensor, a tobacco receiving assembly, and a tobacco guide plate. A weighing sensor is mounted on the top of the base plate and is connected to an industrial control computer via a transmitter. A support base is mounted on top of the weighing sensor, with one end hinged to one end of the tobacco receiving plate and the other end threadedly connected to an adjusting screw. The driving end of the adjusting screw extends between the tobacco receiving plate and the support base and is connected to one side of a driving block. The wall is rotatably connected, with the top of the drive block abutting against the bottom of the tobacco receiving plate. The tobacco guide plate is set on the base plate away from the driving end of the adjusting screw, and the guide end of the tobacco guide plate is located in the area above the tobacco receiving plate. The thickness of the tobacco receiving plate is gradually set to solve the problem that in the existing online detection device for detecting the amount of tobacco recycle in screw conveyor type cigarette machines, the angle adjustment mechanism for adjusting the tobacco receiving position of the tobacco receiving plate in the online detection device for detecting the amount of tobacco recycle is not accurate enough, resulting in a poor match between the tobacco receiving position of the tobacco receiving plate and the tobacco guide plate.