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254results about How to "Easy to get stuck" patented technology

Gripping mechanism for replacing spatial on-orbit modules

A gripping mechanism for replacing spatial on-orbit modules relates to a gripping mechanism for replacing spatial modules, and aims to solve problems that an existing gripping mechanism for replacing spatial on-orbit modules is complex in structure, single in function, large in volume, heavy in weight and low in positioning precision and is inflexible. A stepping motor is mounted in a driving rack, a transition plate is connected onto an upper end surface of the driving rack, a conical positioning piece is disposed on the upper end surface of the transition plate, a driven rack is covered on the outer portion of the conical positioning piece, two positioning columns arranged radially are symmetrically mounted on the lower portion of the conical positioning piece, the upper end of a screw is connected with the conical positioning piece in a threaded manner, a wedge-shaped slider is connected onto the screw, the lower end of the screw is connected with the stepping motor, second notches are arranged on the conical positioning piece, tubular columns are mounted on the tops of the second notches in a clamped manner, conveying pipes are communicated with counter bored holes of the tubular columns, inclined surfaces of the tubular columns are abutted to the wedge-shaped sliders, and a spring is arranged between each of catches and the conical positioning piece. The gripping mechanism is used for on-orbit module service for a spacecraft and on-orbit connecting tasks.
Owner:HARBIN INST OF TECH

Eddy current non-contact multi-channel diameter detector in pipeline

The invention discloses an eddy current non-contact multi-channel diameter detector in a pipeline. The detector comprises a tubular front detector warehouse, a computer warehouse and a battery warehouse. The detector is characterized in that the front detector warehouse, the computer warehouse and the battery warehouse are arranged in sequence, every two adjacent warehouses are connected through a coupler, and supporting wheels are evenly distributed at the outer side of each warehouse in the circumferential direction. A power leather cup is arranged at the axial front end of the front detector warehouse, an eddy current detection ring is arranged at the axial rear end of the front detector warehouse, and a three-channel eddy current sensor is at least arranged in the eddy current detection ring. A single chip microcomputer data processing unit is arranged in the computer warehouse, and a data storage device and a USB plug are also arranged in the computer warehouse. Eddy current detection signals are obtained through an eddy current detection circuit. A lithium battery and a positioning device are arranged in the battery warehouse, and a mileage wheel is arranged at the rear end of the battery warehouse. The eddy current non-contact multi-channel diameter detector is suitable for all pipelines, can solve the problems that the pipeline is easily blocked when the diameter of the large tapered pipeline is detected to the maximum degree, and calibration is not needed every time the detector is used.
Owner:SHENYANG ACAD OF INSTR SCI

Vertical dock floating mooring device suitable for instantaneous amplitude variation of water level

The invention discloses a vertical dock floating mooring device suitable for instantaneous amplitude variation of a water level. The device comprises a photon, running main wheels, lateral balancing wheels, an anchor pile and the like. The mooring device is arranged in a mooring chute of a vertical dock, and is connected with the dock into a whole. A ship goes up and down along the amplitude variation of the water level according to self buoyancy under the joint action of flow velocity force, ship mooring rope tension, fluctuating force and the like, and effectively avoids a blockage phenomenon in the running process by means of a spring balancing device. The mooring device is mainly suitable for vertical docks for riverways of which the water level is instantaneously varied, namely when the ship suddenly meets the instantaneous amplitude variation of the water level due to the peak regulation of an upstream power station in the process of mooring alongside for loading and unloading operation, the device can effectively float up and down with the water level, so that the influence of the variation of the water level on the loading and unloading operation can be reduced, and more importantly, a serious capsize accident caused by mooring rope rupture due to the variation of the water level can be avoided.
Owner:CHONGQING JIAOTONG UNIVERSITY

Three-claw inner support clamp assembly

The invention discloses a three-claw inner support clamp assembly. A supporting frame, a small bevel gear shaft, a large bevel gear, a first lead screw, a second lead screw, a lead screw nut, a connecting block and a disc spring are included. A fixing base with a middle opening is arranged on one side of the supporting frame. The small bevel gear shaft is in meshing transmission with the large bevel gear located at the center position of the supporting frame. The large bevel gear is in transmission connection with the lead screw nut through a first screw. The first lead screw and the second lead screw are fixedly connected and combined into an ejector rod lead screw. A guiding base is located above a bearing block, and rotation of the ejector rod lead screw is limited through cooperation of a guiding key in the guiding base and a key groove in the surface of the second lead screw. The rotating power of the small bevel gear shaft drives the large bevel gear to rotate through cooperationof the small bevel gear shaft and the large bevel gear, the lead screw nut connected with the large bevel gear drives the ejector rod lead screw to ascend and descend at the same time so that a sliding block can be driven to move in the horizontal direction, accordingly, axial force is further converted into horizontal force, and the function of workpiece pressing is achieved.
Owner:南京合信智能装备有限公司

Coffee maker and brewing unit thereof

The invention provides a brewing unit of a coffee maker. The brewing unit comprises a first side wall and a second side wall opposite to the first side wall. A coffee pocket and a brewing head are arranged in space enclosed by the first side wall and the second side wall, the coffee pocket is used for accommodating coffee capsules or coffee cakes, the brewing head is used for squeezing the coffee capsules or coffee cakes, driving devices which are used for driving the brewing head to linearly move and simultaneously driving the coffee pocket to rotate are arranged on the first side wall and/or the second side wall, each driving device comprises a first gear, a second gear, a first driving arm, a second driving arm, a slide guide groove, a shifting shaft and a coffee pocket shifting rod, each first gear is meshed with the corresponding second gear, each first driving arm is connected with the brewing head and the corresponding first gear, each second driving arm is connected with the brewing head and the corresponding second gear, each slide guide groove is used for limiting the brewing head when the brewing head moves linearly, each shift shaft is arranged on the corresponding first gear or the corresponding second gear, and each coffee pocket shifting rod is coaxially connected with the coffee pocket and can accommodate the corresponding shifting shaft. The brewing unit has the advantages that the coffee capsules or coffee cakes can be placed in the coffee pocket conveniently, the brewing unit is simple in operation, and dead points cannot be formed easily.
Owner:MIDEA GRP CO LTD

Gravity compensation device for step-by-step expansion type solar wing ground test

The invention provides a gravity compensation device for a step-by-step expansion type solar wing ground test. The device comprises trusses, two sets of transverse guide rails, a plurality of sets ofsliding mechanisms and a swing mechanism. The two sets of transverse guide rails are installed on the upper portions of the trusses through a plurality of truss installation supports, the swing mechanisms are installed on the trusses, the multiple sets of sliding mechanisms cooperate with the two sets of transverse guide rails, and the section of each transverse guide rail is rectangular; each setof sliding mechanism comprises two transverse sliding frames, a longitudinal shaft support and a longitudinal shaft, the upper portions of the transverse sliding frames are erected on the transverseguide rails on the corresponding sides respectively and slide along the transverse guide rails of the transverse sliding frames, the swing mechanism and each longitudinal shaft are provided with a suspension assembly respectively, and the suspension assemblies slide along the longitudinal shafts and the swing mechanism. Therefore, problems that a long guide rail in a traditional large-range two-dimensional unfolding mechanism is difficult to machine, the guide rail machining and adjusting precision requirements are high, and the unfolding process is prone to being jammed are effectively solved, and the device is convenient to carry and has good economical efficiency and applicability.
Owner:CHANGGUANG SATELLITE TECH CO LTD

Rotating shaft clamping mechanism

The invention belongs to low-voltage electrical equipment, and relates to a rotating shaft clamping mechanism in a low-voltage circuit breaker. The rotating shaft clamping mechanism comprises a rotating shaft body and a moving contact terminal, wherein the moving contact terminal horizontally passes through an inner chamber of the rotating shaft body, can rotate around the centre of the rotating shaft body and is symmetrical about the centre; the front and rear ends of the moving contact terminal are provided with moving contacts corresponding to an upper fixed contact and a lower fixed contact on the circuit breaker respectively; the front and rear parts of the symmetrical centre of the moving contact terminal are fixed with a clamping pin extended out of the two sides respectively; the two ends of each clamping pin are towed by a pair of tension springs positioned outside the rotating shaft body; the fixed end of each tension spring is connected to corresponding fixed pins on the two outer sides of the rotating shaft body; the upper and lower edges of the rotating shaft body are provided with a section of cam surface respectively; each cam surface consists of two sunken sections and an arched section; the two sunken sections are positioned at the two ends of the cam surface, while the arched section is positioned on the middle part of the cam surface; and the clamping pins always cling to and are pressed on the corresponding cam surfaces under the action of the tension springs and can stay at the bottoms of the corresponding sunken sections. The rotating shaft clamping mechanism has the characteristics of simple structure, reliable motion and convenient manufacturing and mounting.
Owner:JIANGSU KAIFAN ELECTRICAL APPLIANCES

Corrugated carton damp-proof self-inspection packet and packing method thereof

The invention discloses a corrugated carton damp-proof self-inspection packet and a packing method thereof and belongs to the field of carton damp-proofing. The corrugated carton damp-proof self-inspection packet includes a self-inspection packet body, wherein a transparent detection rod is fixedly connected to interior of the self-inspection packet body and penetrates through the self-inspectionpacket body. A position limiting ring is fixedly connected to the outer end of the transparent detection rod and is located at the left side of the self-inspection packet body. An internal detection module and an external detection module are respectively arranged on the left and right ends of the transparent detection rod. The internal detection module includes a detection ball clamped with the transparent detection rod. A plurality of air holes are formed uniformly in the outer end of the detection ball. An internal detection groove is formed in the left end of the transparent detection rodand is communicated with one of the air holes. A transparent silica gel ball is fixedly connected to the inner wall of the internal detection groove. The self-inspection packet can simultaneously detect the dampness of internal and external environments of the corrugated carton. The self-inspection packet can be repeatedly used, thus increasing material utilization rate and reducing waste.
Owner:张起

Submerged diaphragm type air cannon

The invention relates to a submerged diaphragm type air cannon which comprises an air storage tank, an air inlet pipe, a vent pipe and a connection flange which are arranged on the air storage tank. The submerged diaphragm type air cannon is characterized in that a submerged diaphragm valve is installed at the connection flange of the air storage tank; the vent pipe penetrates through a tank body and is connected with the diaphragm valve directly; and an elastic diaphragm is used for sealing an air inlet pipe nozzle of the vent pipe and controlling the vent pipe to exhaust. The working theory of the submerged diaphragm type air cannon is as follows: air enters into the air storage tank through the air inlet pipe; when the pressure in the tank reaches a set value, and the tank is required to be exhausted to impact material, the diaphragm valve is opened, and high-temperature air enters into the vent pipe through an annular air duct of a submerged pulse valve instantly and is ejected out through a vent pipe port to form a high-speed jet flow which impacts a material jammed position, so as to achieve the goals of dredging and cleaning. After the process is finished, the submerged diaphragm valve closes automatically. The air cannon has the advantages of enjoying simple structure, convenient installation, being capable of being repaired on line, causing no influence on production, being capable of realizing automatic control and continuous work and having long service life.
Owner:ZHENGZHOU OUYA AIR CANNON

Contactor falling-resistant device

The invention belongs to low voltage electrical equipment, relating to a contactor falling-resistant device in a low-voltage circuit breaker. The contactor falling-resistant device comprises a spindle body and a moving contact, wherein the moving contact penetrates through the inner cavity of the spindle body from front to back and can rotate around the center of the spindle body; the moving contact is in central symmetry, the front and rear ends of the moving contact are respectively provided with a moving contact point which corresponds to fixed contact points at the upper and lower parts of the circuit breaker; the front and rear part of the centre of symmetry of the moving contact are respectively provided with a chute; each chute is internally provided with a bayonet lock which stretches out of the two sides; two ends of each bayonet lock are dragged by a pair of tension springs positioned outside the spindle body; the fixing ends of the tension springs are connected to fixing pins at two external sides of the spindle body; the upper and lower edges of the spindle body are respectively provided with a section of camming surface which is composed of two hollow sections at two ends and a hunch-up section in the middle; and the bayonet lock is always pressed on the camming surfaces under the action of the tension springs and can stay at the bottoms of the two hollow sections. The invention has simple structure and reliable action and is convenient to manufacture and install.
Owner:JIANGSU KAIFAN ELECTRICAL APPLIANCES

Bidirectional tractor

The invention provides a bidirectional tractor without the need of repeatedly pulling a steel wire rope by personnel. The bidirectional tractor comprises a rack, wherein an input shaft, a first drum, a second drum, the steel wire rope and a pulley are arranged on the rack; a first engagement sleeve and a first gear are arranged on the input shaft, and a first chain wheel is arranged on the first gear; a second chain wheel is arranged on a rotary shaft of the first drum, and the first chain wheel is connected with the second chain wheel through a chain; a second engagement sleeve and a second gear are arranged on a rotary shaft of the second drum, and the second gear is engaged with the first gear; and one end of the steel wire rope is fixed on the first drum, and the other end of the steel wire rope is fixed on the second drum around the pulley. According to the bidirectional tractor provided by the invention, the input shaft is capable of driving rotations with opposite rotation directions of the two drums simultaneously, the positive rotation and the reverse rotation of the input shaft drive the steel wire rope to carry out circulating travelling between the drums and the pulley, and materials are hung on the steel wire rope for being conveyed, thus a time of manually pulling the rope back to a material place is saved, the efficiency is increased, and the working intensity of the personnel is reduced.
Owner:泉州市劲力工程机械有限公司
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