22results 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.

The present invention belongs to the field of chip conveyors, and provides an improved precision filtering chain plate type chip conveyor, comprising a shell, a discharge port is provided at the front end of the shell, the end of the shell is arc-shaped, a chain plate conveying assembly is installed on the shell, the chain plate conveying assembly is arranged along the length direction of the shell, one end of the chain plate conveying assembly is located above the discharge port, a plurality of reflux ports are provided on the side of the shell, a filter box is inserted inside each of the reflux ports, and a filter screen is provided on the filter box. The present invention provides a filter box and a chain plate conveying assembly, fine chips pass through the coarse filter holes and fall onto the filter screen, the coolant will enter the filter box and return to the cooling system of the machine tool, thereby avoiding the waste of coolant, and the filter screen can better filter fine chips, thereby improving the filtering accuracy of the device.

The invention discloses a nerve detacher, and relates to the field of surgical tools. The nerve detacher comprises a cutting base, and a ligamentum flavum cutting unit and a ligamentum flavum separating unit are arranged on the cutting base. According to the nerve detacher, through the arrangement of the ligamentum flavum separating unit and the ligamentum flavum cutting unit, when the ligamentum flavum is cut, the second driving mechanism is used for driving the multiple sets of arc-shaped hook needles to rotate and prick into the ligamentum flavum, the nerve detacher is directly lifted through external force, and then the ligamentum flavum can be stressed and separated from the dura mater; subsequently, the ligamentum flavum is cut through the cutting action of a cutting tool bit in the ligamentum flavum cutting unit to quickly form a target incision, the cutting mode does not cause dura mater injury and the conditions of subsequent dura mater damage, cerebrospinal fluid leakage and iatrogenic injury increase, and the nerve detacher is simple to operate and high in practicability. The stability of the post-operation spine of the patient is guaranteed, and the spine fixing device is suitable for being used and popularized.

The utility model relates to robot technical field, concretely relates to a robot joint support mechanism, including joint one and joint two, support subassembly, support subassembly sets up on joint one and joint two, and support subassembly is used for supporting joint one and joint two, reverse stretch subassembly, reverse stretch subassembly sets up in the middle part of support subassembly, and reverse stretch subassembly is used for the damping and reverse pull of joint two when bending on joint one. Compared with the prior art, the reverse stretch subassembly composed of the second rotating disc, trigger plate, connecting rod, moving block and tension spring is arranged, so that the joint two can obtain continuous variable damping feedback in the bending process, and the flexible control of the bending angle is realized.

An electromagnetic damping photovoltaic tracking system includes: a tracking bracket and a driving mechanism; the tracking bracket includes a column, a rotating support part, a damping part and an electromagnetic part; the column is fixedly arranged, the rotating support part is rotatably arranged on the column, and the driving mechanism is used to drive the rotating support part to rotate; the damping part is arranged on the rotating support part, and the electromagnetic part is arranged on the column, and the electromagnetic part adsorbs the damping part when it is energized to form a damping structure for hindering the rotation of the rotating support part; the electromagnetic part is intermittently energized. The electromagnetic part is intermittently energized. In this way, when working in windy weather, since the electromagnetic part will cooperate with the damping part to generate resistance to prevent the rotating main shaft from rotating excessively when it is energized, it is difficult for the wind kinetic energy to accumulate during the rotation of the rotating main shaft, so that the tracking bracket will not be damaged due to wind resonance.

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 invention provides an intelligent torsion control and modular design shooting gun auxiliary operating rod which comprises a sleeve rod, a sliding column is slidably connected to the interior of the sleeve rod, a clamping device is installed at the upper end of the sliding column, a first groove is formed in the outer surface of the sleeve rod, and a connecting block is slidably connected to the interior of the first groove; a first sleeve is installed at one end of the connecting block, a bearing is installed at the other end of the connecting block, the sliding column penetrates through the bearing, a square strip is installed at the lower end of the sliding column, and a square sleeve is further slidably connected into the sleeve rod. According to the electric wrench, the rotating torsion of the sliding column is detected through the torque detection sensor, when the preset fastening torsion value is reached, the display screen gives an alarm, so that an operator stops the electric wrench from rotating the sleeve to avoid excessive rotation, and the threaded column is separated from the moving block by rotating the threaded column; and then the extrusion strip with the same size is replaced and connected to one end of the moving block, so that modular installation and use are realized.

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 double-eccentric air valve which comprises a valve body, a rotatable valve plate, an eccentric transmission shaft and a transmission mechanism. The transmission mechanism comprises a hinge seat, a shaft sleeve, a connecting rod, a rod sleeve and a supporting plate, the hinge seat is arranged on the valve plate and provided with a hinge plate, the shaft sleeve fixedly sleeves the transmission shaft, the top end of the shaft sleeve is rotatably hinged to the hinge plate to form a first hinge point, the rod sleeve movably sleeves the connecting rod, and the connecting rod is rotatably connected with the end of the hinge plate. The supporting plate is arranged on the inner wall of the valve body, the transmission shaft penetrates through the upper portion of the supporting plate, the top end of the rod sleeve is rotatably hinged to the supporting plate to form a second hinge point, and the second hinge point is located obliquely above the connecting position of the transmission shaft and the supporting plate. The transmission shaft is separated from the valve plate and deviates from the center of the valve body, a transmission mechanism is ingeniously configured, a quadrilateral mechanism is formed during rotation, the valve plate is rapidly separated from the valve body, opening and closing rotation is flexible during operation, the opening resistance distance is reduced, and the operation stability is good.

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 discloses battery slurry transfer equipment which comprises a bottom plate, a lower barrel arranged on the bottom plate, an upper barrel arranged above the lower barrel, a filtering mechanism arranged between the upper barrel and the lower barrel, a fixing plate fixedly connected to the bottom of the bottom plate, a rotating shaft rotationally connected to the side face of the fixing plate, and wheels fixedly connected to the rotating shaft in a sleeved mode. The top of the lower barrel and the bottom of the upper barrel are communicated with pipelines respectively, the pipelines are rubber telescopic hoses, a mounting ring is fixedly connected between the adjacent ends of the two pipelines, the filtering mechanism is detachably arranged in the mounting ring, a cylindrical supporting plate is welded to the upper portion of the outer side of the lower barrel, and the filtering mechanism can move up and down through the two pipelines and the mounting ring. A cam is driven to rotate in the equipment transferring process, and a push plate, a push rod, a connecting ring, a guide rod, a sliding block and a spring are matched, so that the filtering mechanism can move up and down in a reciprocating mode in the equipment transferring process, battery slurry penetrates through the filtering net quickly, and the battery slurry screening time is shortened.

The utility model discloses a cabinet lamp power supply box provided with rotary fixing feet. The cabinet lamp power supply box comprises an upper shell, a circuit board, a lower shell and the fixing feet. A power supply notch is formed in one end of the upper shell, a wireless receiving end notch is formed in the other end of the upper shell, and cabinet lamp connecting grooves are formed in the two sides of the upper shell; mounting notches for mounting the fixing feet are formed in opposite angles of the circuit board, a power interface is formed in one end of the circuit board, a wireless receiving end interface is formed in the other end of the circuit board, and cabinet lamp connecting ports are formed in the two sides of the circuit board; mounting columns for mounting the fixing feet are arranged on a pair of corners of the lower shell; the whole fixing foot is in a P shape, an internal thread column is arranged above the fixing foot, and the fixing foot penetrates through the spring and the installation column through a screw and is installed at the opposite angles of the lower shell in a threaded mode and connected with the internal thread column in a rotatable mode. According to the cabinet lamp power supply box, the installation angles of the fixing feet can be adjusted, different installation angles can be adjusted according to the structure of a cabinet and personal requirements so as to achieve the best installation and use effect, and the cabinet lamp power supply box can be stored in the transportation process and is not prone to being damaged.

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 invention belongs to the technical field of ship cleaning devices, and relates to a scraping device for bulk cargo ship cabin cleaning, which comprises a bucket body, a connecting frame and a cleaning device, the connecting frame and the cleaning device are both arranged on the bucket body, the connecting frame is used for being connected with external equipment, and the cleaning device is used for being connected with the external equipment. The cleaning device comprises a scraping shovel plate and a rotary driving mechanism, the scraping shovel plate is located on one side of the connecting frame, the rotary driving mechanism is in driving connection with the scraping shovel plate, and the rotary driving mechanism is used for driving the scraping shovel plate to rotate around the x axis and / or the z axis. The bucket body can be flexibly controlled through the large arm and the small arm of the excavator, the scraping device can utilize the lower rotation driving mechanism to drive the scraping shovel plate to move in an arc track after the bucket excavates and cleans in place, materials in a cabin keel are effectively cleaned, and the cabin cleaning efficiency is remarkably improved.

The utility model provides a thread cutting structure of sewing machine belongs to sewing machine technical field. It solved how to avoid the problem of bird nest -like thread ball phenomenon on the sewing material. The thread cutting structure of this sewing machine, sewing machine includes the needle plate with the needle drop hole of lower shaft, the thread cutting structure includes the dynamic cutter and the thread pressing piece of the sleeve setting in the lower shaft outside and can rotate relative to the lower shaft circumference, the needle plate is located the upper of dynamic cutter and thread pressing piece, the outer wall of dynamic cutter is equipped with the thread hooking hole, the thread hooking hole one side hole wall is the inclined wall that sets up relative to the axial inclination of lower shaft, the needle drop hole is close to the edge of one side of inclined wall setting, the thread pressing piece is close to the edge of other side of inclined wall setting, the needle plate bottom is fixed with the thread cutting knife, the needle drop hole is the strip hole, one end of needle drop hole is used for the needle to wear and set, the other end of needle drop hole is towards the inclined setting of thread cutting knife head, and the head of thread cutting knife projects on the end hole wall of needle drop hole inclined setting and sets up. The thread cutting structure of this sewing machine can avoid the bird nest -like thread ball phenomenon on the sewing material.

The utility model belongs to the technical field of folding chair, concretely relates to stable type folding chair support of limiting, including cushion frame, the bottom of cushion frame is connected with front chair foot and rear chair foot through first limiting joint respectively, and first limiting joint includes limiting sleeve groove and connecting rod, and connecting rod pivot connects in limiting sleeve groove, and the top rear side of cushion frame is rotatably connected with backrest support, the utility model discloses through the universal design and simple docking type assembly mechanism of limiting joint, effectively simplifies folding chair support structure, reduces the structure volume, improves structural stability, and limiting joint can adapt to different chair size, and the product quality and product benefit are improved significantly.

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.

The invention belongs to the technical field of circuit board testing, and particularly relates to a COF packaging electrical property testing device which comprises an electrical property testing box body, a longitudinal moving mechanism, a transverse moving mechanism and an adsorption mechanism, a negative pressure state is manufactured through an air pump, stable adsorption and fixation of a COF packaging circuit board are achieved, an air channel sliding block and a sliding block air hole are communicated through the negative pressure state, and therefore the COF packaging circuit board can be stably adsorbed and fixed. The transmission impeller and the transmission fluted disc are pushed by airflow of the air pump to rotate, rotation operation of the adsorption plate is achieved, forward rotation inner teeth and a reverse rotation fluted disc are designed on the transmission fluted disc, full-tooth meshing transmission is formed between the transmission fluted disc and the driven gear, the COF packaging circuit board is twisted firstly and then reset, then electrical testing is conducted, and the stress condition in actual use is simulated; the COF packaging circuit board with qualified electrical performance and the COF packaging circuit board with unqualified electrical performance are separated by using the first blanking conveyor belt and the second blanking conveyor belt, so that the production efficiency is improved.

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.