334results about How to "Structural stability" patented technology

The invention relates to a loading test device and method of an asymmetric lateral-force-resisting structure, and belongs to the technical field of building structure tests. The test device comprises a bearing system, vertical loading systems and horizontal loading systems, wherein the bearing system comprises a pedestal, a reaction wall, a bracket and a reaction beam. The vertical loading system comprises a vertical force jack, a vertical force sensor, a loading distribution beam and a horizontal sliding support. The number of the horizontal loading systems arranged at the same horizontal height is two or more than two, and the loading of the horizontal loading systems can be independently controlled; each horizontal loading system comprises a horizontal-force jack, a horizontal-force sensor, a hinge connecting piece and a horizontal-force transferring device; and the horizontal-force transferring device consists of a loading beam and a screw nut. When in test, after the vertical force is applied on the structure sample to be tested, the horizontal force is applied on the sample by utilizing the characteristic that all the horizontal loading systems can control loading independently and implementing displacement control, so that the torsion is effectively controlled. The testing device and method can be used for horizontal loading tests of various asymmetric lateral-force-resisting structures.

The invention discloses a Redis high-availability system based on QConf and a method. The system comprises a QConf management side, a QConf client side, a QConf server side, a sentry cluster node and a Redis duplication node. The QConf client side interacts with the QConf server side, obtains the newest QConf service node and analyzes the QConf service node. The QConf management side deploys QConf monitoring service and QConf management expansion. The sentry cluster node is a server for operating a sentry cluster. The sentry cluster is responsible for monitoring survival of a master library and a slave library in a Redis duplication cluster. According to the Redis high-availability architecture provided by the invention is simple and stable; the availability of the a Redis database is greatly improved; the maintenance is facilitated; the cost is very low; the Redis master and slave automatic switching is realized in a sentry mode; the technology is mature; the QConf is taken as an intermediate layer; and stability and reliability are achieved.

An ejection mechanism, particularly for mobile pieces of furniture, comprising a curve guide (7, 7', 7'', 7''', 7''''), along which a driver (11, 11', 11'', 11''', 11'''') can be displaced, wherein the driver (11, 11', 11'', 11''', 11'''') is prestressed in one direction by at least one force accumulator (8, 8') and can be latched in a locked position at the curve guide (7, 7', 7'', 7''', 7'''') with the stressed force accumulator (8, 8'), and an activator (5, 5', 5'', 5''', 5''''), which can be coupled to the driver (11, 11', 11'', 11''', 11'''') at least in the locked position, wherein the activator (5, 5'', 5''', 5'''') can be moved relative to the curve guide (7, 7'', 7''', 7'''') or the curve guide (7') can be moved relative to the activator (5'), wherein in the locked position the driver (11, 11', 11'', 11''', 11'''') can be released by a relative movement of the activator (5, 5'', 5''', 5''''); relative to the curve guide (7, 7'', 7''', 7'''') or by a relative movement of the curve guide (7') relative to the activator (5'). The activator (5, 5', 5'', 5''', 5'''') and/or the curve guide (7, 7', 7'', 7''', 7'''') can be moved both in a first direction and in an opposite second direction to release the driver (11, 11', 11'', 11''', 11'''').

The invention discloses a stirring building or station embedded control system, which comprises an embedded industrial controller, wherein the communication interface of the embedded industrial controller is in communication connection with a display, an upper computer and an industrial Ethernet switch; the communication interface of the industrial Ethernet switch is connected with an input/output (I/O) controller; the signal input interface of the I/O controller is connected with the signal output end of a weighing sensor through an analog input module, and is in signal connection with a field switch through an on-off input module and an intermediate relay; the signal output interface of the I/O controller is connected with the control end of a field execution element through an on-off output module and an intermediate relay; the signal input end of the industrial Ethernet switch is connected with the signal output ends of a temperature detector, a slump detection device, a level sensor and a sand water measuring instrument; and the control output end of the industrial Ethernet switch is connected with the control input ends of a printer and a large display screen. The system has the advantage of realizing production automation of proportioning, unloading and concrete discharge in a stirring machine.

The invention relates to a drilling device and a related drilling method, in which provision is made for a mast, a drilling carriage that is guided along the mast in a displaceable manner and a drive unit for moving the drilling carriage on the mast. In accordance with the invention the drive unit has both a hydraulic cylinder drive and a rope winch drive. The drilling carriage can be coupled with the hydraulic cylinder drive and with the rope winch drive.

The invention discloses a shaped-chamber flowmeter including the seal cavity with the shaped-cylinder lumen, the inlet, the outlet and training slot. The rotor units composed by the decussation training slot, the first combination sliding plate, the second combination sliding plate and the permanent magnet is installed in the seal cavity. The shaped-chamber is composed of the semicircular contour, the 1/4 circular contour and 1/4 ellipse contour, which are all in same axis. The radius of semicircular contour and the 1/4 circular contour is equal to the semi-major axis and the semi-minor axis of 1/4 ellipse contour respectively. Two groups of sliding plates are installed in the decussation training slot. The rotor is in the same axis with each contour of lumen, the radius is equal to the radius of 1/4 circular contour, which are slip fit and rotate combined with the combination sliding plate and cavity wall under the flux pressure error. The two sliding plates slide in cross under the work of the 1/4 ellipse contour. The rotor rotates by one circle which mean that there has the equal fluid flow through the cavity, so it can reach the fluid meter.

The invention relates to a method for material concentrating in a ternary precursor synthesis reaction. According to the method, a reaction vessel, a negative-pressure tank and a mother liquor tank are connected sequentially; a stirrer, a guide flow cylinder, a charging pipe, a nitrogen gas guide pipe, a liquid level meter, a clear-out pipe and a filter stick are arranged inside the reaction vessel; a vacuum pump is arranged at the top of the negative-pressure tank; and a centrifugal pump and a metering pump are arranged at the bottom of the mother liquor tank. According to the method, the problems of a ternary precursor synthesis reaction at present that concentrated particles are subjected to refluxing growth and the product is lost are solved. According to the method for material concentrating in the ternary precursor synthesis reaction, provided by the invention, reaction mother liquor can be directly drained outside the vessel, the problem of loss of the material particles is avoided, the particles are not required to be subjected to refluxing growth after concentration, and the problem that unaccepted products are produced due to secondary growth is avoided.

The present invention relates to an urban greening tree pruning device and its use method, comprising a support base, a scissor type telescopic mechanism is arranged on the support base, a working platform is arranged on the upper end of the scissor type telescopic mechanism, and the support base A driving mechanism for driving the lifting of the scissor telescopic mechanism is installed on the top, and a positioning mechanism is also arranged on the lower side of the supporting base. It is not only compact in structure, but also easy to lift and use, stable in lifting and easy to operate.

A structure for a bicycle frame system is described by using multiple composite tubes bonded to one another, wherein apertures, or ''ports'' are molded between the tubes to improve the stiffness, strength, aerodynamics and comfort of bicycle frame component.

The invention relates to a device for constructing models in layers. A region for constructing models, preferably a construction platform, and a material applying device (4, 5) for applying material onto the region are provided. The material applying device (4, 5) is arranged in a movable manner over the region. The material applying device (4, 5) is designed as a portal (1, 1') such that the material applying device can be moved over the region at least via two linear guides (2) arranged at opposite sides of the region, and the material applying device is arranged around the region such that a portal (1, 1') is formed by at least two portions that extend laterally with respect to the region. At least one additional material applying device (4, 5) for applying an additional material onto the region is provided.

The present invention relates to a highchair (1) which is provided with a foot part (2) and a seat element (4) mounted thereon. The invention is characterized in that a height-adjustable and length-adjustable gas-filled strut (6) which is used for supporting the seat element (4) is provided between the foot part (2) and the seat element (4).

A panel structure in which a surface panel can be easily removed from frame members and which is solid. Frame members (17, 18, 34) having at least engagement pieces (24, 25), a hook (35) engageable with the engagement pieces (24, 25), and pressing pieces (37) foldable together with the hook (35) are provided at at least one side of a core panel (14), and a surface panel (38) can be removably held between the core panel (14) and the press-down piece (37).

The invention provides a caterpillar band type mobile robot wheel band structure adaptive to complicated road conditions in the technical field of a special robot. The structure comprises a wheel hub and a caterpillar band, wherein the wheel hub consists of a wheel shaft sleeve, a center wheel disc, a plurality of wheel rods and two baffle plates; the center wheel disc is arranged between the end faces of the two baffle plates; moreover, the center wheel disc and the two baffle plates are all axially arranged on the wheel shaft sleeve; all the wheel rods respectively penetrate through the center wheel disc and are uniformly arranged between the two baffle plates to form a wheel hub tooth face; the caterpillar band consists of a band tooth face and band back teeth; toothlike bumps are uniformly distributed on the band tooth face; moreover, the band tooth face is engaged with the wheel hub tooth face; the band back teeth are respectively provided with a convex structure, and contact with the ground. According to the structure, the design structure is simple; the obstacle crossing ability is strong; the wheel hub has an ability of self-adaption and removing impurities, so that the stability of a caterpillar band robot under complicated road conditions is improved.

The invention discloses a three-dimensional electrode electro-catalytic oxidation reactor for degrading sewage, which comprises a container and a power source device, wherein the container is provided with a water inlet and a water outlet; an electrode assembly is arranged in the container, and comprises a plurality of positive electrodes and a plurality of negative electrodes, which are same in number and uniformly arranged at intervals in a staggered way; liquid in the container is added with zeolite particles serving as third electrodes; and the power source device is electrically connected with the positive and negative electrodes of the electrode assembly. The three-dimensional electrode electro-catalytic oxidation reactor has the advantages that: 1, the positive and negative electrodes acquire electric energy, so that sewage liquid is degraded into H ions and O ions, the zeolite particles can form small primary batteries, and the small primary batteries convert the H ions and O ions into OH hydroxyl radical ions; and 2, the positive and negative electrodes acquire electric energy, and the zeolite particles have the particle electrode function and ion conversion function, so that massive OH hydroxyl radical ions are generated on the peripheries and surfaces of the electrodes and in the liquid.

The invention discloses a bidirectional discharge circular vibrating screen, which consists of a screen body, a vibration generator, springs, a support and a transmission device, and is characterized in that the screen body consists of a screen frame, an upper screen mesh and a lower screen mesh; the upper screen mesh is provided with a discharge opening I, and the lower screen mesh is provided with a discharge opening II; the support is arranged on the lower part of the screen body which is fixedly connected with the support through four groups of springs; and the vibration generator is arranged on the upper part of the gravity center of the screen body. The bidirectional discharge circular vibrating screen has the advantages that the material circular vibrating screen adopts a simple eccentric shaft block to adjust the amplitude, has the characteristics of long slip screen line, multiple screening specifications, quick discharge and high classification efficiency, also has the characteristics of reliable structure, strong excitation force, high screening efficiency, small vibrating noise, firmness and durability, convenient maintenance, safe use and the like, and can be widely applied to classification and separation of materials in the industries such as mining, building material, traffic, energy and the chemical industry.

A simply formed and rigid contact holding structure of a connector in which the positions of the contact parts of a plurality of contacts are different from each other. When the contact (3) is deeply fitted into an insulator (2), first the contact is inserted into a contact storage part (2a) in the direction of an arrow in step 1. Next, a holder (8) is inserted into a holder storage part (2b) in the direction of an arrow in step 2, and an engagement part (8a) is engaged with a latch (engaged part) (3d2). Then, the contact is fixed to the insulator. When the contact is shallowly fitted into the insulator, the engagement part is engaged with the latch (3d1). As a result, a position difference is formed in the fitting direction of the connector between the contact part (3a) of the contact in the first case and the contact part of the contact in the second case.

The invention discloses a straight rack driven different-speed linkage mechanism. The straight rack driven different-speed linkage mechanism is characterized in that a driving guide rail and a driven guide rail are arranged at left and right sides of a mounting framework; the driving guide rail and the driven guide rail are provided with a driving sliding block and a driven sliding block; inner sides of the driving sliding block and the driven sliding block are engaged with a driving rack and a driven rack which have different tooth pitches; a linkage gear composed of two coaxial gears with different sizes is arranged between the driving rack and the driven rack; the large gear is engaged with the driving rack and the small gear is engaged with the driven rack; a straight rack of a rack transmission assembly is arranged on the driving sliding block; and the guide rail is sleeved with a compression spring pipe. The straight rack driven different-speed linkage mechanism has the advantages of scientific structure, easiness of manufacturing, small size, convenience for assembling and low cost; only one driving power source can realize different-speed linkage action, so that the linkage mechanism is easy to control, is safe and reliable, and can be widely applied to a clamping mechanism, a tensioning mechanism or different-speed linkage equipment with different linkage speeds; and automatic control of related equipment is convenient to realize and the linkage mechanism has relatively great application prospects.

An electric press device formed in such a structure that a differential key is circumferentially moved in place of such a structure in a publicly known document that a differential key is linearly moved so that a fixed point processing requiring accurate position control can be accurately performed for a long time. A slide plate (5) is vertically moved by a first motor (8) to process a work at a fixed position. A differential mechanism comprises a cylindrical nut lifting sleeve (15) having a spirally advancing sliding groove (21) in the outer peripheral surface thereof, a nut lifting plate (17) having a guiding engagement part (22) fitted to the sliding groove and allowed to slide therein, and a second motor (41) rotating the nut lifting plate (17).

The invention relates to a movable concrete mixing plant, which comprises at least one structural unit, specifically a stirring unit and a lifting device, wherein the structural unit is lifted in a work position by the lifting device and supported relatively to the ground; a concrete mixer is loaded through the structural unit in a work position; and the structural unit can be transported on the loading surface of a transport vehicle, specifically the loading surface of a semi-trailer towing vehicle.

Provided are a transmission-driving unit (10), and a method for manufacturing the transmission-driving unit. The transmission-driving unit comprises an electric motor (12) and transmission housings (14,18) with an electronic interface (36) which is used to hold an electronic module (34). The electronic module can be inserted into the electronic interface (36) along an insertion direction (51), and the electronic interface (36) has walls (38) which are separated. The wall and the electronic module (34) together form an electronic housing (40) used to seal an electronic element (33). The electronic interface (36) is provided with a locking element (76) and the electronic module (34) is provided with a corresponding pairing locking element (74). After the electronic module (34) is completely inserted, the locking element and the pairing locking element are mutually fixedly locked and are completely in the electronic housing (40).