34results about How to "Avoid horizontal rotation" patented technology

The invention discloses a cervical collar which provides support, safety and stability to the neck of the wearer, and is arranged to prevent cervical flexion, extension and bilateral lateral flexion while allowing cervical rotation. The cervical collar comprises two parts; one back piece including a shoulder and back support piece attached to an adjustable neck piece and a chin support piece. The chin support piece can be lowered, raised and/or removed by the wearer of the collar in order to allow opening of the mouth sufficiently for eating or performing personal hygiene without unwanted extension of the neck.

A riding apparatus for treating a floor surface has a main steering and drive wheels and a forwardly located seat for an operator and at least one foot rest for feet of the operator. The vehicle has a polishing and cleaning deck mounted in front of the vehicle and is operably connected to the main vehicle. A clearance gap is formed between the vehicle and the polishing and cleaning deck. The at least one foot rest has a gap therebetween for providing a line of sight for the operator through the gap to view the floor surface directly behind the deck.

A trailer coupling mechanism includes a first end, a second end, a height adjustment assembly, a first swivel assembly, and a second swivel assembly. The first end is adapted to couple to one of a trailer and a vehicle. The second end is adapted to couple to the other of the trailer and the vehicle. The height adjustment assembly is coupled between the first and second ends and is operative to adjust the relative height between the first and second ends. The first swivel assembly is coupled between the height adjustment assembly and the first end and facilitates rotation of the first end with respect to the height adjustment assembly about a first axis. The second swivel assembly is coupled between the second end and the height adjustment assembly and facilitates rotation of the height adjustment assembly with respect to the second end about a second axis parallel to the first axis.

The invention discloses a special worktable for a laser tracker, which is capable of moving the laser tracker to an extension line of the link between the point A and the point B to the utmost extent and keeping the pointing direction of the laser track consistent with the link between the point A and the point B to the utmost extent when in measurement of the distance between the point A and the point B in the three-dimensional space. The special worktable for the laser tracker comprises a mount, a vertical angle regulator, a horizontal angle regulator, a horizontal translation regulator and a lifting regulator, wherein the mount is matched with a base of the laser tracker, the vertical angle regulator, the horizontal angle regulator, the horizontal translation regulator and the lifting regulator are used for regulating the mount. The interferometry function of the laser tracker can be utilized by the worktable during measurement, horizontal rotation and vertical rotation of the laser tracker are avoided, and accordingly uncertainty in measurement of the laser tracker is reduced, and measurement precision of the point A and the point B is guaranteed. In addition, the invention further discloses a laser tracking measurement method.

The invention discloses a pay-off frame and cable manufacturing equipment. The pay-off frame includes a frame, a bundle tube coil wound with bundle tubes, a thimble mounted on the frame and capable of clamping the bundle tube coil, A pallet for placing the bundle tube tray and a lifting device for lifting the pallet, the lifting device includes a horizontally arranged lifting block and a driver for lifting the lifting block, and the lifting block is located on the pallet and connect the two ends of the tray through connecting pieces, the two sides of the frame are respectively fixed with a vertical optical axis, and the lifting block is sleeved on the optical axis and can move along the optical axis. During the vertical movement of the lifting block, the vertical optical axis makes the up and down strokes have a fixed track, prevents horizontal rotation, avoids equipment damage, and improves equipment stability. The invention also discloses a cable manufacturing equipment comprising the above-mentioned pay-off frame.

The invention provides a protective cover and an isolation switch equipped with the same, and belongs to the technical field of parts of an electric switch apparatus. The protective cover comprises a cover body, a threading port and a first operating port, wherein the cover body is suitable for being mounted on the base of the isolation switch and used for covering at least one contact base which is mounted on the base and used for connecting an inlet wire or an outlet wire; the threading port is formed in the cover body or between the cover body and the base, and used for allowing the inlet wire or the outlet wire to pass through; and the first operating port is formed in the cover body and used for allowing an operating tool to pass through to connect the inlet wire or the outlet wire on the contact base or remove the connection between the inlet wire and the contact base or between the outlet wire and the contact base. The protective cover provided by the invention is mounted on the base of the isolation switch, so that the contact base connected with the inlet wire or the outlet wire can be covered; and the first operating port is formed in the protective cover, the inlet wire or the outlet wire on the contact base can be connected and contacted without detaching the protective cover, so that wire connecting and wire detaching steps of the isolation switch can be simplified.

The invention discloses a stereoscopic parking lot, and relates to the field of parking lots. The stereoscopic parking lot comprises a plurality of box bodies used for storing cars. The box bodies align in the horizontal direction, and box body assemblies are formed by stacking at least one box body on the box bodies except one box body. A plurality of box body assemblies are placed in the parking lot. Each box body assembly is provided with a transporting mechanism. Each transporting mechanism comprises a crane and a rail. Each rail is horizontally erected above the corresponding box body assembly in the parking lot. The cranes are arranged on the rails in a horizontal moving mode. The box bodies are provided with a plurality of hooks matched with the cranes. The stereoscopic parking lot has the beneficial effects that the vertical space and the horizontal space of the parking lot are fully utilized, more vehicles are parked compared with a traditional stereoscopic parking lot, the car picking and parking operation can be completed for a driver, the driver does not need to find a parking place for car parking or picking, and much time and energy are saved for the driver.

The invention relates to a yarn bobbin package which comprises a plurality of lining plates. The upper surface of each lining plate is provided with a plurality of first grooves, and the lower surface of each lining plate is provided with second grooves which are identical with the first grooves in number and in one-to-one correspondence with the first grooves. The first grooves are communicated with the second grooves in a one-to-one vertical alignment mode. Each lining plate is provided with through holes identical with the first grooves in number. The lining plates are overlapped in sequence, yarn bobbins to be packaged are fixed between every two adjacent lining plates, the upper ends of the yarn bobbins to be packaged are embedded into the second grooves of the upper lining plates, and the lower ends of the yarn bobbins to be packaged are embedded into the first grooves of the lower lining plates, so that the whole package is formed. According to the yarn bobbin package, the defect that in a traditional mode, yarn bobbins collide with one another and consequently the yarn quality is affected due to the fact that the yarn bobbins deviate from positions in the transporting process is overcome; it is ensured that the yarn bobbins are firmly stored in the whole package, the packaging efficiency and the yarn bobbin transporting efficiency are improved, transportation losses are lowered, and the transportation cost is reduced; the yarn bobbin package is simple in structure and low in cost.

The invention discloses a high-stability folding landing gear for an unmanned aerial vehicle. The high-stability folding landing gear comprises an unmanned aerial vehicle body, a machine frame slot and a first frame bar, wherein the machine frame slot is formed in the lower side of the unmanned aerial vehicle body, and the front side wall of the machine frame slot is hinged to the upper end of thefirst frame rod through a circular ring rod. A horizontal circular groove is formed in the front side of the machine frame slot, and the horizontal circular groove is internally provided with a horizontal threaded rod. Bearings are fixed to both ends of the threaded rod, and the bearings are divided into a left bearing and a right bearing. The circular groove is internally provided with an electric motor, and the top end of a rotating shaft of the motor is horizontally and fixedly connected with one end of the threaded rod. The upper end of the left bearing is fixedly connected with the lowerend of a fixing block, and the upper end of the fixing block is fixedly connected with the groove bottom of the machine frame slot. The outer side walls of the bearings are fixedly connected with thegroove wall of the circular groove, and a spline is fixed to the side surface of a cylindrical rod. The spline is connected with threads on the side surface of the threaded rod in a threaded and meshing mode. The stability of the landing gear for the unmanned aerial vehicle is higher.

The invention discloses a mobile ground wire pile resistant to disassembly by mistake, and relates to the field of equipment maintenance. In a conventional ground wire, a chuck at a grounding busbar may be loose and is likely to be disassembled by mistake so as to cause induced electric shock of workers. The mobile ground wire pile comprises a ground wire lock hole, a fixing base, a movable bottomplate and a foldable operating rod, wherein the fixing base comprises a mounting plate and a fixing baffle; the operating rod passes down through the mounting plate; the lower end of the operating rod is connected with the movable bottom plate; the movable bottom plate is opposite to the fixing baffle; and the operating rod is in threaded connection with the mounting plate. When the operating rodrotates, the movable bottom plate can move up and down. The top surface of the mounting plate around the operating rod is provided with a locking pin for avoiding the horizontal rotation of the operating rod. When folded, the operating rod is restricted by the locking pin in the horizontal direction and cannot be rotated, thereby achieving mechanical locking. After the ground wire is locked, a case can be avoided that the operating rod rotates so as to loosen the ground wire pile or cause manmade mistaken disassembly.

The invention discloses a cable manufacturing equipment, which comprises a pay-off rack, and the pay-off rack includes a frame, a bundle tube coil wound with a bundle tube, a tray for placing the bundle tube coil, and a tray for lifting the bundle tube coil. A lifting device for pallets, the lifting device includes a horizontal lifting block and a driver for lifting the lifting block, vertical optical axes are fixedly installed on both sides of the frame, and the lifting block is sleeved on the The optical axis and can move along the optical axis. During the vertical movement of the lifting block, the vertical optical axis makes the up and down strokes have a fixed track, prevents horizontal rotation, avoids equipment damage, and improves equipment stability. The invention also discloses a cable manufacturing equipment comprising the above-mentioned pay-off frame.

The invention discloses a light compensation device for submerged plants. The light compensation device comprises surrounding fixed piles and a central fixed pile. The bottom ends of the central fixedpile and the surrounding fixed piles are fixed at the bottom of a lake, the outer wall of the central fixed pile is provided with a central lifting device, the central fixed pile is flexibly sleevedby a pile cap which is connected with a lifting portion of the central lifting device, the pile cap is connected with a stainless steel bracket, the bottom side of the stainless steel bracket is provided with a floating plate, and the top of the stainless steel bracket is provided with a solar panel and an electromechanical control box. The light compensation device of the invention can utilize buoyancy force to reduce the bearing pressure of the surrounding fixed piles and the central fixed pile, also can adapt to the change of the water level of a water body, and can also prevent horizontalrotation of a solar power generating device to enable the solar panel to remain at an optimal angle for receiving light.

The invention provides a financial accounting document punching device convenient to maintain. The device comprises a bottom worktable, rear supporting plates, a top mounting plate, a lifting positioning frame structure, an elastic pressure frame structure, a hollow rectangular frame, a horizontal sliding chute, an elastic punching frame structure, a locking bolt, a lifting handle, a transverse containing plate, a dovetail-shaped sliding chute, an overturning fixing frame structure, an electric air cylinder and a pressure push plate, wherein the rear supporting plates are welded to the left side and the right side of the upper portion of the rear end of the bottom workbench correspondingly; and the top mounting plate is in bolted connection with the front ends of the upper portions of the rear supporting plates. The device has the beneficial effects that through the arrangement of a hollow sliding frame, the hollow rectangular frame, horizontal sliding grooves and locking bolts, the position of the hollow sliding frame on the inner side of the hollow rectangular frame can be fixed through the locking bolts, so that the position of the hollow sliding frame is adjusted, and the device can adapt to documents with different widths.

A connecting mechanism convenient to assemble comprises a first component and a second component which need to be connected. The first component comprises a first groove, the outer part of the first groove is narrow, and the inner part of the first groove is wide; and the second component is provided with a buckle assembly which can extend into the first groove. The buckle assembly comprises a sleeve and a force application unit. At least one functional hole is formed in the side wall of the sleeve. A deflection clamping plate is arranged in each functional hole. The lower ends of the deflection clamping plates are hinged to the sleeve. The force application unit drives the upper end of each deflection clamping plate to be switched between two stations. The first stations are located in the functional holes. The second station is located outside the sleeve and makes a buckle part clamped in the first groove. The buckle assembly is disposed on the second component so that the buckle assembly is prevented from being lost. When a product is stressed in the axial direction of a screw, force is borne through screw threads. The deflection clamping plates are located in the second stationto abut against the first groove. In this way, the situation that a lot of screws fail due to screw thread slippage is avoided.