30results about How to "Frequent movement" patented technology

An elevator installation for zonal operation in a building, a method for zonal operation of such an elevator installation and a method for modernization of an existing elevator installation, in which the building is divided into several zones. The elevator installation includes several elevators for the transport of persons / goods in cages. A zone is associated with each elevator. At least one changeover storey for the changing over of persons / goods between cages of different zones is arranged between the zones. At least one elevator comprises at least two cages which are arranged one above the other and which are movable independently of one another at a pair of guide rails.

The invention discloses a multi-inter-domain asymmetric group key agreement protocol method under the mobile cloud computing network environment. The method comprises the following steps: adopting a bilinear mapping technology and a blind secret key technology to realize a short signature mechanism between a domain secret key management center and a domain terminal; using a short signature technology to realize a multi-inter-domain group key agreement authentication mechanism of terminals distributed in different domains, and further realize asymmetric group key agreement of the terminals distributed in multiple domains. The protocol method disclosed by the invention has the anonymity and the authentication, supports dynamic group key updating of nodes, and realizes the security of forward confidentiality and backward confidentiality of the group keys; on the hypothesis of the Diffe-Hellman bilinear computing problem, the security of the protocol is proved; the computing and communication energy consumption of the protocol is low; the method is good in flexibility, security and practicability, and suitable for cross-domain group key agreement of the terminals distributed in the multiple domains under the mobile cloud computing network environment.

The invention discloses a method for realizing ice melting in a distribution network by making an active ring current with flexible multi-state switches. The method comprises: selecting an ice-meltingtarget line; reconstructing a distribution network through a distribution network communication switch and reconstructing the ice-melting target line into an ice-melting ring network path; setting working modes of flexible multi-state switches; to be specific, setting a flexible multi-state switch at the ice-melting target line side to work in a PQ mode and a flexible multi-state switch at a non-ice-melting communication line side to work in a direct-current constant-voltage control mode; and calculating an active power P of the ice-melting line based on an ice-melting current needed by the ice-melting target line, using the P as an active power reference value of the flexible multi-state switch at the side, starting the flexible multi-state switches at the two sides, and adjusting voltage phases of the flexible multi-state switches, and generating an active power flow in positive correlation with a phase difference value. Therefore, problems of complicated line outage operation and the short-circuiting procedures melting efficiency and the limited length of the ice-melting line during the ice melting of the transmission line in the prior art can be solved.

The invention discloses a vertical and horizontal dual-purpose mouse. The vertical and horizontal dual-purpose mouse comprises a mouse body and a base. The mouse body comprises a left key, a right key and a roller. The left key, the right key and the roller are located at the top of the mouse body. The bottom of the mouse body is hinged to the base. The base is provided with a laser transmitter. The laser transmitter is electrically connected with the left key, the right key and the roller. The vertical and horizontal dual-purpose mouse has the advantages that the vertical and horizontal dual-purpose mouse can be used selectively in a horizontal mode or a vertical mode, the use flexibility of the mouse is improved, and the symptoms such as thickening of the tendon in the carpal canal, space constriction of the carpal canal, pain and numbness of the fingers, muscle weakness and the like caused by the fact that a mouse is used by people through one posture for a long time are reduced. When the vertical and horizontal dual-purpose mouse is used, the hand can be parallel to the front arm, thus, when the mouse is moved, people frequently move the arm, frequent motion of the wrist is reduced, and the wrist is in a natural state.

The invention provides a novel Spar deep sea oil-exploration and oil-extraction engineering platform which respectively has oil-exploration and oil-extraction functions, wherein an exploration platform adopts a 360-degree full-rotation contra-rotating propeller (or serial propeller) power positioning and propelling device and an oil-extraction platform is provided with a mooring rope, so that an efficient, energy-saving and flexible Spar scheme is provided. The gravity center of a Spar platform is designed to be far lower than a floating center and is unconditionally stable so that a hundred-year mega storm can be resisted and impacted. The arrangement of a drilling rod and a marine riser is compact and novel so as to conveniently operate a mechanical hand of a hydraulic crane; the drilling rod and the marine riser are conveyed into the center of a wellhead through an eccentric wheel of a hydraulic rotary mechanism to be put down and be connected in a butted joint manner, and are automatically controlled by a central control room. The Spar platform is controlled by double wellheads and double valves; and a sea floor wellhead and a seabed marine riser are tightly sealed so as to effectively prevent seawater from entering and preventing oil from being leaked. The oil is convenient to extract and the cost is reduced. A cylindrical structure has double layers so that the strength is high and the work of a central well is effectively protected to be safe and reliable. The total level of the novel Spar deep sea platform is higher than traditional platforms at home and abroad.

The invention discloses a method for realizing online ice melting of a power distribution network by transferring power flow through a flexible distribution switch. The method comprises the followingsteps: step 1, selecting any one connection feeder line in the power distribution network as an ice melting target line; step 2, setting the control mode of the flexible switch device directly connected with the ice melting target line as a direct-current constant-voltage control mode, and setting the control modes of the remaining flexible switch devices as P-Q control modes; and step 3, adjusting a main controller of the power distribution network, keeping the load sum of the feeders unchanged, reducing the active power output by the connection feeders of the non-ice-melting target line, andincreasing the active power of the ice-melting target line to be higher than the line holding current until the ice-melting target line realizes over-current ice melting. The technical problems thatline outage operation and short circuit procedures are complex, the ice melting efficiency is not high, and the ice melting line length is limited in the power transmission line ice melting process inthe prior art are solved.

A novel concept of ergodynamic desktops with slowly varying configurations for ergonomic purposes is provided. Very slow motions are incorporated into the design of desktops, usually used by computer users. The introduced motion is at such a slow pace that it is hardly noticeable, similar to the adiabatic motions of hour or minute hands on a clock. Users of the desktops are therefore induced to adjust their body posture accordingly in a gradual and healthy manner, while still continuing to perform their normal activities without interruption. These desktop designs allow a natural and effortless combination of normal life and exercise. When used in a working environment, they will be useful to improve the health and to enhance the efficiency of workers.

The present invention provides a converter valve design method used for DC system black-start. The method comprises the steps of building a converter valve system simulation model; utilizing the converter valve system simulation model to obtain the voltage and the current stress in a converter valve and the loss of damping loops, a thyristor and a lightning arrester when a DC system is utilized to carry out the power grid black-start; configuring the parameters of the lightning arrester of the converter valve; utilizing the converter valve system simulation model and integrating the loss of different damping loops, the turn-on and turn-off loss of the thyristor and a converter valve phase commutation overshoot peak value to obtain an optimal scheme of the damping parameter configuration and the waterway configuration; analyzing the black-start operation capability of the converter valve, and determining whether the lightning arrester acts when the converter valve is at the power grid black-start by a leakage current waveform of the lightning arrester of the converter valve obtained by simulation; determining whether the converter valve can operate stably on the black-start condition by the loss of the lightning arrester. According to the technical scheme provided by the present invention, the black-start speed and stability of the power grid are improved.

The invention discloses an automotive trim door plate multifunctional composite testing fixture and a using method thereof. The invention belongs to the technical field of detection, the problem thatin the prior art, the three-dimensional full-size front and back face detection function of an automotive trim injection molding door plate body and a door plate assembly cannot be achieved is solved.The automotive trim door plate multifunctional composite testing fixture is characterized in that a door plate iron door sheet metal profiling block, a positioning locking mechanism, a door plate substrate main positioning block, a Y-direction limiting mechanism and a Z-direction limiting mechanism are arranged in front of the detection tool bottom plate; a door plate assembly back profiling block, a back positioning and pressing elastic sheet, a door plate assembly back handle profiling block and a door plate base plate back positioning block are arranged behind the checking fixture bottom plate; beneficial effects are as follows, only one set of detection tool needs to be developed; through disassembly, assembly and switching of different mechanisms, a three-coordinate full-size front and back full-size detection function of the injection molding door plate body and the door plate assembly and an imitation vehicle door metal plate matching gap measurement function are realized, thedevelopment cost of the detection tool is reduced, rapid installation and rapid disassembly are realized, and the detection accuracy and the high efficiency of the detection process are improved.

A method for generating diffuse reflection light and a diffuse reflection lamp are provided. The diffuse reflection lamp comprises a reflective plate (10), a connector (20) and a dragging device (40). The reflective plate (10) is removably fixed on the lamp by the connector (20) to reflect the light from the lamp. One end of the dragging device (40) is connected with the reflective plate (10), and the other end is connected with the connector (20); or the dragging device (40) hoops around the outer edge of the reflective plate (10). Therefore, the reflective plate (10) is elastically bended toward and formed into a curved arc surface to collect the diffuse reflection light.

The invention provides an upper cover assembly and a cooking utensil. The cooking utensil comprises an upper cover plate. The upper cover assembly for the cooking utensil comprises a cleaning cavity, a sewage drainage device which is communicated with a sewage drainage hole, a connecting rod, a valve which is matched with a feeding hole, and a driving device which is located outside the cleaning cavity and used for driving the connecting rod to move. A mounting hole is formed in the side wall of the cleaning cavity. The feeding hole and the sewage drainage hole are formed in the bottom of the cleaning cavity. The connecting rod is arranged on the side wall of the cleaning cavity through the mounting hole in a penetrating mode, the first end of the connecting rod is located inside the cleaning cavity and the second end of the connecting rod is located outside the cleaning cavity, wherein the first end of the connecting rod is connected with the valve in order to drive the valve to move between a first position and a second position, the first position is used for blocking the feeding hole to close the feeding hole, and the second position is used for avoiding the feeding hole to open the feeding hole. According to the upper cover assembly, the driving device outside the cleaning cavity controls the connecting rod to make the valve move, and therefore the goal of opening or closing the feeding hole is achieved.

According to a first aspect of the invention, there is provided a child seat mountable vehicle seat, including: a seat skin including a front skin and a rear skin; a stitched portion; and a non-stitched portion formed in the stitched portion to define an opening from which a metal striker is projected, wherein a belt-like portion of the front skin is turned over and extends forwards, while a belt-like portion of the rear skin extends forwards further than the metal striker, wherein a trim plate is applied along an inner surface side of the rear skin, and wherein, in the non-stitched portion, the belt-like portion of the front skin is superposed on the belt-like portion of the rear skin with respect to a direction in which a latching device is moved to latch the metal striker.

The invention discloses an intelligent anti-freezing drinking trough with an energy-saving water pump. The intelligent anti-freezing drinking trough comprises a drinking trough body, a single chip microcomputer and the energy-saving water pump, a trough cover is arranged on the upper portion of the drinking trough body, a fixed frame is connected on the fixed cover through a fixed bolt, a floatingball device is arranged on the fixed frame, the bottom of the floating ball device sequentially penetrates the fixed frame and the fixed cover and extends into an inner trough body, a support is mounted in the upper surface of the fixed frame, a high-level approach switch and a low-level approach switch are sequentially arranged on one inner side, close to the floating ball device, of the supportfrom top to bottom, a heat insulation layer is arranged in a cavity between the inner trough body and an outer trough body, an automatic temperature-control electric heating belt is mounted at the bottom of the drinking trough body, and an insulating layer is arranged on the outer surface of the automatic temperature-control electric heating belt. The drinking trough is simple in structure and stable in working performance, water level is accurately detected, and the drinking trough is provided with an animal drinking device which is efficient in energy, environmentally friendly, good in anti-freezing heat insulation performance, high in safety coefficient and low in economic cost.

The invention relates to the technical field of tea production, and discloses a cleaning device for tea production, the cleaning device comprises a base, a box body, a water tank and a containing cylinder, a stirring mechanism is arranged in the box body close to the top end, and a shaking mechanism is arranged in the box body close to the bottom end; the stirring mechanism comprises a first motor, a partition box, a long rotating shaft, a first gear, a second gear, a short rod, a structural box, a partition plate, an annular toothed plate, a supporting short cylinder, a large rotating disc, a small rotating disc and a stirring rod, the first motor is fixedly installed on the inner wall of the partition box, and the rotating directions of the small rotating disc and the large rotating disc can be opposite under the combined action of all the mechanisms; therefore, when the large rotating disc and the small rotating disc drive the stirring rods to rotate, the stirring rods enable water flow for soaking tea leaves to flow more disorderly, the cleaning effect on the tea leaves is improved, the tea leaves move more frequently along with the water flow, the cleaning efficiency of the tea leaves is improved, the problem that the tea leaves need to be turned over manually in existing tea leaf cleaning is solved, and manpower is saved.

A cable connector with improved grounding arrangement for electrically connecting to a shielded cable comprises a dielectric housing receiving a number of contacts therein, a shielding mechanism consisting of a first shell and a second shell, a module including a circuit board, and a dielectric shell enclosing the cable connector. The housing forms a frame comprising a pair of step-like shoulders and a pair of diagonal faces. The first and second shells form a pair of first and second grounding tabs, respectively, for engaging with the corresponding shoulders of the housing. The first grounding tabs overlap on the corresponding second grounding tabs thereby forming a grounding path through grounding wires of the cable terminated to the cable connector, the second shell, the first shell and a shield of a mating connector therethrough. The first shell also has a pair of positioning tabs extending from middle portions of edges of upper and lower surfaces thereof. Each positioning tab defines a latching aperture therein for securing corresponding projection formed on the housing. Therefore, the shielding mechanism provides the cable connector with reliable grounding capabilities when the cable connector undergoes a bending test due to the provision of middle cutouts of the second shell and the middle grounding tabs of the first shell.

The invention provides a non-contact on-load automatic voltage regulation distribution transformer, which includes a non-contact tap changer and a single-chip microcomputer control system. The high-voltage winding of the distribution transformer body has a rated voltage (UN) on the neutral point side. , 95%UN and 105%UN three taps, between each tap and the neutral point, a zero-crossing solid-state relay SSR as a non-contact tap changer is connected to measure the low-voltage side voltage output by the working power transformer T It is connected to the single-chip microcomputer monitoring system, and the output of the single-chip microcomputer monitoring system is connected to the control circuit of the solid-state relay SSR as a non-contact tap changer. The invention has the characteristics of automatically stabilizing the voltage according to the change of the load, has a compact structure and low cost, and adopts a solid-state relay instead of a bidirectional thyristor, so the operation is more reliable and the voltage stabilizing performance is better.

The invention discloses a first-aid cold compress device for hypertensive cerebral hemorrhage patients, and relates to the field of first-aid cold compress, the first-aid cold compress device comprises a fixed pillow, a lifting air bag is arranged in the fixed pillow, the top end of the lifting air bag is connected with a movable supporting block, a spring is arranged in the middle of the bottom end of the movable supporting block, and the top end of the movable supporting block is connected with a fixed air bag; a cold compress head sleeve is arranged at the top end of the fixed air bag. The head of a patient can be placed at the top end of a movable supporting block, the height of the movable supporting block is increased by pressing a supporting air bag, so that the head of the patient is lifted, manual lifting is not needed, time and labor are saved, after the head and neck of the patient are placed at the top end of the supporting air bag, the corresponding air bag can be pressed to enable a fixed air bag to swell, and the head of the patient is fixed. Therefore, the head and the neck of the patient are relatively fixed from the two sides, the head and the neck are prevented from shaking greatly when the patient is placed or transferred, and further deterioration of the condition of the patient is avoided.

An exercising garment comprising resistance bands configured to stretch from a relaxed position to a resistance position. The resistance bands can be coupled to a modified pants. The pants may comprise an additional strip of fabric located within each pant leg defining a channel configured to receive and secure the integral exercising resistance bands. The resistance bands having a first end positioned at a location near the waist height of a user and a second end positioned at a location near the foot height of the user. The second end may include loops for removably inserting the user's feet.

The invention discloses a rotary operating table device for veterinarian diagnosis and treatment, and relates to the technical field of veterinary diagnosis and treatment. The rotary operating table device comprises a fixed bottom plate and a fixed lying plate, wherein fan-shaped working areas are arranged at the four end corners of the fixed bottom plate and the four end corners of the fixed lying plate correspondingly, a table center is arranged in the middle of the fixed lying plate, a driven turbine is rotatably connected to the side, closest to the table center, of each fan-shaped workingarea and located at the lower end of the fixed lying plate, a leg fixing mechanism is fixed to one side of the driven turbine, a rotating round rod is rotatably connected to the lower end of the fixed lying plate and located on one side of the driven turbine, and a transmission worm is fixed to the outer side of the rotating round rod. Animals of different body types can be simply fixed into different postures through cooperation of all accessories, great convenience is provided for an operator, the angle of animals at the upper end of the fixed bottom plate is adjusted by starting a transmission motor, the situation that the operator needs to frequently move the animals when conducting operations on different positions of the animals is avoided, and the working intensity of the operatoris greatly reduced.

The invention discloses a sand beach investigation sampling device which comprises a supporting frame, a first guiding strip, a lower supporting shaft, a normally-closed button switch S1, a normally-closed button switch S2, a first sliding block, a pushing frame, a cleaning shaft, a connecting plate, a cleaning disc, a lower transmission disc, a scraping plate, a lower dovetail guide rail, a lower dovetail base, an upper dovetail base, a transmission part and a moving part. Horizontal first guide strips are fixed to the front end and the rear end of the inner wall of the bottom of the supporting frame correspondingly, horizontal lower supporting shafts are fixed to the left end and the right end of the supporting frame correspondingly, the two lower supporting shafts are coaxial, and a horizontal normally-closed button switch S1 is fixed to the left end of the inner wall of the bottom of the supporting frame. The device can be remotely controlled to move in the corresponding direction by remotely controlling a stepping motor and a speed reduction double-shaft motor, so that frequent movement of a worker can be avoided, a large amount of physical strength is saved, the danger that the worker falls down and sinks into the device is avoided, pollution of sand grains to feet is avoided, and the labor intensity of the worker is reduced. And the trouble of cleaning is saved.