60results about How to "Play the role of limit protection" patented technology

The invention discloses a double-reed large-turning angle flexible joint, relates to the technical field of mechanical kinematic pairs, and solves the problem that the conventional flexible hinge is small in motion range. The double-reed large-turning angle flexible joint is characterized in that a first shell is integrally formed by a 210-degree arc plate and a 90-degree arc plate; the side wall of the 210-degree arc plate and the side wall of the 90-degree arc plate are integrally connected, and the thickness of the 90-degree arc plate is smaller than that of the 210-degree arc plate; the 210-degree arc plate of the first shell is arranged outside a 90-degree arc plate of a second shell, the 90-degree arc plate of the first shell is arranged inside a 210-degree arc plate of the second shell, and a gap is formed between the first shell and the second shell; a first flexible plate is inserted into the first shell and the second shell through a first through groove and a second through groove; a second flexible plate is inserted into the first shell and the second shell through the remaining parts of the first through groove and the second through groove. The double-reed large-turning angle flexible joint is applied to the field of large-stroke precision transmission mechanisms and flexible transmission.

The invention relates to the technical field of manipulators, in particular to a four-way rotating seat type power-assisted manipulator structure which comprises a manipulator body. Sliding mechanisms are mounted on the manipulator body, limiting mechanisms are mounted on the sliding mechanisms, connecting mechanisms are mounted on the sliding mechanisms, and lubricating mechanisms are arranged at the two sides of the sliding mechanisms; and moving mechanisms are mounted on the sliding mechanisms, and protection mechanisms are arranged on the sliding mechanisms. Through cooperation of the sliding mechanisms and the limiting mechanisms, the working range of the manipulator body is enlarged, and the manipulator body works more stably; through driving of the limiting mechanisms, the lubricating mechanisms work, the sliding mechanisms slide smoothly, and the multiple sliding mechanisms are conveniently spliced and connected under the action of the connecting mechanisms, so that the working scope of the manipulator body is further increased; and under the cooperation of the protection mechanisms and the moving mechanisms, the sliding mechanisms can be detached and separated conveniently, and the manipulator can be used in different areas.

The invention relates to the field of electric power construction, in particular to a tightening instrument for power transmission and distribution lines. A tightening instrument for power transmission and distribution lines comprises a tightening instrument body, wherein the tightening instrument body comprises a positioning hook (1), a tightening gear (2), a handle (3), and a hook (4); the positioning hook (1) ) is connected to one end of the tightening gear (2), the hook (4) is connected to the other end of the tightening gear (2) by a twisted wire, and the handle (3) drives the tighteninggear (2) to rotate; the tightening instrument body is provided with a tension sensor (5) for measuring the tension on the positioning hook (1), and the tension sensor (5) is connected with a dynamic resistance strain gauge (6) that is provided with a tension display module (7). The invention can guide the state of wires while being tightened, thereby avoiding the wires being too tight or too loose.

The invention discloses an installation and maintenance operation platform for a substation device. The installation and maintenance operation platform comprises a pedestal; a wheel stand is respectively arranged at four corners of a lower surface of the pedestal; a lower surface of each of the wheel stands is rotationally connected with a caster; a foot brake is arranged on a side surface of eachof the wheel stands; an electric generator is arranged on an upper surface of the pedestal; a first fixed rod is arranged on the upper surface of the pedestal; a first sliding chute is formed on a side surface of the first fixed rod; and a first motor is arranged on an upper surface of the first fixed rod. According to the installation and maintenance operation platform for the substation device,an electric control manner is adopted and manpower for manually adjusting a position and a height of the platform is replaced, so the operation is simple, the working efficiency is improved, and thenormal power utilization is prevented from being affected; through the casters and the foot brakes, the platform can be conveniently moved and placed, so the flexibility in use is improved; the platform can be manually moved via a pushing hand; through a connection plate and a connection hole, the platform can be connected with a vehicle for pulling and dragging; and therefore, the flexibility ishigher.

The invention relates to the field of skin care product filling devices, in particular to an anti-leakage device for batch filling of liquid skin care products. The device comprises a base, a rotatingstructure, a lubricating structure, a placing structure, an anti-leakage structure, a filling structure and an opening and closing structure; the rotating structure works to drive the anti-leakage structure to work, and if the anti-leakage structure works, the limiting protection effect can be achieved when liquid skin care products are filled into the filling bottle, and the occurrence of splashing and leakage during the filling of the liquid skin care product can be avoided; moreover, the anti-leakage structure can drive the opening and closing structure to act on the filling structure while working, so the filling structure can be accurately controlled, thereby achieving the quantitative effect, and avoiding the situation that liquid skincare products are wasted due to the fact that the filling structure is in a leakage state all the time; through the arrangement of the rotating structure on the base, filling bottles fixed to the containing structure on the rotating structure can be rotated to be fed, and the filling continuity can be achieved.

The invention relates to the field of furniture manufacturing and discloses a reading aid. The reading aid comprises a guide plate, an inner supporting plate, a placement plate and an adaptor portion.The inner supporting plate is used for sliding on the guide plate which is fixed to the lower surface of a book supporting board, the placement plate is used for book placement, and the adaptor portion is used for connection of the inner supporting plate and the placement plate. The inner supporting plate is hinged to the adaptor portion, the placement plate is connected with the adaptor portionthrough a rotating adjustment portion which comprises a clutch component and an adjustment hand wheel, and the adjustment hand wheel is connected with the clutch component, the placement plate and theadaptor portion. The reading aid has advantages that a book placement angle is adjusted by high-accuracy rotation while far and near sight distance adjustability is realized, and accordingly readingcomfort of users can be improved.

The invention discloses a preheating and flattening device for fabric processing. The device comprises a base, the upper surface of the base is provided with a preheating plate, a heat collecting chamber is formed in the portion, below the preheating plate, of the interior of the base, and a heating rod is arranged in the heat collecting chamber; the portion, below the heat collecting chamber, ofthe interior of the base is connected to an air blower through a hose; the outer walls of the inclined ends of both sides of the base are movably connected with lower roller shafts through lower supporting rods; supporting frames are symmetrically welded to both sides of the upper surface of the base, the inner walls of sliding slots are in rolling connection with a sliding frame through limitingrollers, and a lifting air cylinder is fixed to the lower portion of the sliding frame through bolts; the lifting air cylinder is connected with a flattening plate through a retractable rod, and flattening roller shafts are movably connected to the lower surface of the flattening plate at equal intervals. According to the preheating and flattening device, comprehensive and uniform preheating of afabric is ensured, and meanwhile the fabric flattening quality is also improved; the device has high practicability.

The invention provides a method for adjusting a car car-dumper car-pressing position and a system. The method for adjusting the car car-dumper car-pressing position comprises the following steps thata model of the car is acquired, and a car pre-pressing position of a car-pressing head of the car-dumper of the car is determined according to the model of the car. According to the method for adjusting the car car-dumper car-pressing position and the system, the technical problems that a car dumper in the prior art can not automatically adjust the car pressing position, and the car pressing efficiency is low are solved.

The invention relates to the technical field of unmanned aerial vehicles, in particular to a fixed wing type unmanned aerial vehicle pesticide spraying structure which comprises an unmanned aerial vehicle body, a supporting mechanism is installed on the unmanned aerial vehicle body, a spraying mechanism is installed on the supporting mechanism, a protection mechanism is installed on the spraying mechanism, and a driving mechanism is installed on the spraying mechanism. The spraying mechanism is provided with a limiting mechanism, the supporting mechanism is provided with a fastening mechanism, the supporting mechanism is provided with a locking mechanism, and the supporting mechanism is connected with an abutting mechanism. Supporting and damping of the unmanned aerial vehicle body are facilitated through the supporting mechanism, meanwhile, the spraying mechanism is conveniently mounted, placed and sprayed, the spraying mechanism is stored and protected through cooperation of the driving mechanism, and locking protection of the spraying mechanism is facilitated under the action of the protection mechanism and the limiting mechanism; the fastening mechanism drives the supporting mechanism to be firmer through driving of the spraying mechanism, and the spraying mechanism and the supporting mechanism are stably installed through the locking mechanism and the abutting mechanism.

The invention relates to the technical field of sports goods, and discloses a basketball storing device for an indoor basketball court. The basketball storing device comprises a cabinet, a bottom plate is fixedly connected to the bottom of the cabinet, a push rod is fixedly connected to one side of the bottom plate, drawers are arranged on the bottom of an inner cavity of the cabinet, a fixing plate positioned inside the cabinet is fixedly connected to the top of the drawers, a bearing is arranged on the top of the fixing plate, and a threaded rod is arranged in the center of the bearing. Forthe basketball storing device for the indoor basketball court, due to the arrangement of placing plates, the threaded rod and placing holes, basketballs are sequentially placed in the placing holes, due to the arrangement of limiting blocks, the limiting and protecting effects can be achieved on the basketballs, thus the displacement of the basketballs can be avoided, the three placing plates arebeneficial for increasing the placing number of the basketballs, the space area is increased, meanwhile, a rotation handle is rotated, the threaded rod is used for driving the placing plates to move vertically, so that people with different body heights can be satisfied, and therefore, the problem that short people have inconvenience in taking or placing the basketballs is solved.

The invention dislcoses a door body structure used for a vacuum chamber. The door body structure comprises a body movably arranged at an opening of the vacuum chamber. A mounting portion is arranged in the position, located above the opening, of the outer wall of the vacuum chamber. A plurality of fixed air cylinders are arranged on the mounting portion and face the vacuum chamber. When the body seals the opening, the ends of the fixed air cylinders abut against the body, and the body is pressed tightly on the outer wall of the vacuum chamber. The bottom of the body is connected with a guide device. The guide device is connected with the body and the vacuum chamber and located below the opening. The door body structure provided by the invention has the advantages of simple structure, convenient and fast disassembling and assembling, stable connection and high state switching efficiency, and the problems that the opening and closing process of the vacuum chamber is tedious and consumes a lot of time and labor due to the complex manual assembling and disassembling of a structure for connecting the vacuum chamber with the door body structure of an existing vacuum coating device are solved.

The invention discloses an alcohol bottle for medical disinfection, and relates to the technical field of medical disinfection equipment. The alcohol bottle comprises a U-shaped glass tube and a supporting base; the U-shaped glass tube is fixedly mounted on the supporting base; the peripheral side surface of the U-shaped glass tube is fixedly connected with a pushing assembly; mounting channels are formed in two ports of the inner wall of the U-shaped glass tube; the inner bottom surface of the mounting channel is fixedly connected with an annular magnet block; and the inner wall of the U-shaped glass tube is fixedly connected with a filter plate below the mounting channel. The cotton swab inserting plate is fed into the mounting channel, the annular magnet block attracts the annular iron ring, so that the cotton swab inserting plate is fixed to the inner bottom face of the mounting channel, disinfected cotton swabs are placed in through a placing hole, the liquid level of alcohol in the U-shaped glass tube is lower than a filter plate, standby alcohol is injected into the U-shaped glass tube by pushing an injector during use, the alcohol liquid level overflows the filter plate, and the cotton swabs are soaked; a plurality of cotton swabs can be dipped in alcohol at the same time, a worker can take the cotton swabs conveniently, and the working efficiency is improved.

The invention discloses a placing frame for storing a molybdenum rod electric heating element. The frame comprises a supporting column, a sleeve pipe sleeves the top of the supporting column, and a top plate is welded to the outer surface wall of the sleeve pipe; hanging frames are welded to the outer surface wall of the supporting column in an equal-angle mode, one end, close to the supporting column, of the surface of the hanging frames is sleeved with an inner ring limiting ring, and the bottom of the supporting column is rotationally connected with a base through a transmission shaft; andauxiliary supporting rods are symmetrically welded at the bottom ends of the outer surfaces of the two sides of the supporting column, moreover, the bottom end of auxiliary supporting rods are connected with a groove in the upper surface of the base through limiting sliding wheels in a sliding mode, an oil storage bin is arranged inside the base and located below the groove, and a pressing block is arranged above the oil storage bin. According to the frame, the supporting column is simple and reasonable in overall structural design, the supporting column can be horizontally operated in a rotation mode through a bearing, so that the placing angles of the hanging frames can be changed, so that people can be prevented from placing the molybdenum rod heating element by walking, and the workload of workers is further reduced.