95 results about "Piece Unit" patented technology

The invention provides a method for calculating parameters of a three-component proportional controller, which comprises the following steps of: S1, calculating and determining the height of a shell of each set of the proportional controller and the unit displacement of a volume metering component of the proportional controller according to the component proportion and the height of the proportional controller; s2, according to the geometric structure relation and boundary dimension constraint of the volume metering component of the proportional controller, calculating and determining the diameter of a leakage-resistant rotor blade, the diameter of a leakage-resistant rotor transmission shaft, the diameter of a displacement rotor blade and the diameter of a displacement rotor transmission shaft; s3, calculating the internal leakage rate and the proportional error of the volume metering part of the proportional controller, evaluating whether the proportional controller meets the design requirement or not according to the proportional error, and if the design requirement is not met, executing the steps S1 to S2 again; and S4, according to the rotating speed relationship between the displacement rotor and the leakage-proof rotor, calculating and determining the modulus and the tooth number of a linkage gear of the leakage-proof rotor and the displacement rotor. According to the method, designers can be assisted to quickly obtain reasonable key structure parameters of the three-component proportional controller.

The utility model discloses a novel hill plate device of a computerized flat knitting machine, which comprises a triangular bottom plate, a knitting unit and a sheet pressing unit, the knitting unit is arranged on the upper portion of the triangular bottom plate, the sheet pressing unit is arranged in the middle of the triangular bottom plate, a needle selecting unit is arranged on the lower portion of the triangular bottom plate, and the knitting unit comprises a disc hill and a needle turning triangle. The disc hill is fixedly arranged on the triangular bottom plate, the needle turning triangle is arranged above the disc hill in a telescopic mode, and receding grooves are formed in the two sides of the disc hill respectively; the pressing piece unit comprises a left needle connecting pressing piece, a tucking pressing piece and a right needle connecting pressing piece, the left needle connecting pressing piece, the tucking pressing piece and the right needle connecting pressing piece are sequentially and telescopically arranged on the triangular bottom plate, and a first linkage mechanism is arranged among the left needle connecting pressing piece, the tucking pressing piece and the right needle connecting pressing piece; and the first linkage mechanism is linked with the left needle connecting pressing sheet, the tucking pressing sheet and the right needle connecting pressing sheet to do telescopic motion. According to the utility model, the novel design of the hill-shaped plate is adopted, the traditional hill-shaped plate structure is simplified, the abrasion of the knitting needle component is reduced, and the production cost is reduced.

The present invention relates to a hinged quick installation fence, comprising at least two fence piece units and a ground inserting rod, the fence piece unit includes at least two fence pieces and a connecting hinge, the fence pieces are rotatably connected together by the connecting hinge, and the leftmost fence piece is provided with a left hinge member, the rightmost fence piece is provided with a right hinge member, the adjacent fence piece units are connected in pairs correspondingly through the left hinge member and the right hinge member, and the ground inserting rod is inserted into the left hinge member and the right hinge member and fixed, and the fence piece units form a fence for use. The advantageous effects of the present invention are as following: the hinged quick installation fence can be transported, installed and stored more conveniently by combining two or more fence pieces into a fence piece unit, thereby saving manpower and time costs.

The invention discloses a corrosion monitoring device for the outer wall of an underground oil and gas pipeline and a monitoring method thereof, and relates to the technical field of oil and water well monitoring equipment.The device comprises a hanging piece unit and an outer sleeve, the hanging piece unit comprises a connecting cover, corrosion hanging pieces, a rear cover plate and a plurality of embedded plates, and the embedded plates are circularly distributed and fixed to one side of the connecting cover; an embedding hole is formed in the embedding plate, a rear cover plate is fixed to the bottom of the embedding hole in a sealed mode, the corrosion coupon is arranged on the upper end face of the embedding plate and adheres to the upper end face of the rear cover plate in the embedding hole, the coupon unit is inserted into the outer sleeve, a hollowed-out strip-shaped hole is formed in the position, corresponding to the coupon unit, of the side wall of the outer sleeve, and the corrosion coupon is embedded into the hollowed-out strip-shaped hole. And the outer side of the corrosion coupon is kept consistent with the outer edge surface of the outer sleeve. The assembly process is simple, the corrosion condition of the underground oil pipe can be conveniently analyzed, the corrosion rule is researched, guidance is provided for safe and efficient production of oil and gas wells, and the use effect is good.

The application discloses a kind of double-curved steel truss and net shell bending-torsion piece assembly assembling jig and its assembling method, and the assembling jig includes a plurality of slide rails arranged in parallel, each slide rail is provided with a bottom beam movable relative to each other, the bottom beam is provided with height-adjustable column, and a plurality of height-adjustable columns are provided with top beam for connection.The application adopts slidable assembly jig, avoids the shortcomings of the prior art, and provides a new assembling method for bending-torsion piece unit.The jig slides in the slide rail through the bottom pulley, realizes rapid horizontal movement, greatly reduces the repeated installation, disassembly and handling work of the jig, realizes the repeated use and multi-layer stacking of the jig through the assembly method.In addition, different from the conventional assembling method of "first positioning the jig, then setting the height", the jig is assembled according to the method of "first setting the height, then positioning the jig", which avoids the problems of low efficiency and high cost caused by repeated production of the jig.

A pole-piece unit of a magnetic gear includes a pole-piece support body having a connection part that is connected to each end of a plurality of pole pieces, and a radially extending part that extends from the connection part toward an inner side in a radial direction. A first yoke unit includes an end plate that is disposed on an end surface of a first body part in an axial direction, and faces the radially extending part with a predetermined gap therebetween in the axial direction. The end plate has a magnetic material part that is made of a magnetic material, and a non-magnetic material part that is made of a non-magnetic material and disposed on an outer side in the radial direction relative to the magnetic material part.

The utility model discloses a chopstick cage for a dish-washing machine and the dish-washing machine. The two clamping piece units are located on the two sides of the handle; the clamping piece unit comprises two clamping pieces, one end of each clamping piece is connected with the handle, and the other end of each clamping piece is suspended; a chopstick box body; the buckle is arranged on the chopstick box body and is used for being detachably clamped with the clamping piece unit; a slide way is arranged on the buckle; the clamping position is arranged on the chopstick box body and is communicated with the slide way; the clamping position is positioned below the slide way; when the two clamping pieces are located in the sliding way, the suspended ends of the two clamping pieces are in an extruded state. When the two clamping pieces are located in the clamping positions, the suspended ends of the two clamping pieces are in a release state. The clamping piece can be clamped with the buckle and can also be separated from the buckle, so that the handle is mounted and dismounted; after the handle is detached from the chopstick cage body, the handle and the chopstick cage body can be cleaned respectively, and cleaning dead corners caused by fixed connection between the handle and the chopstick cage body are avoided.

The application provides a battery protection mesh mounting system and method, by setting a taking and placing piece unit composed of a relatively up and down movable taking and placing piece assembly and a positioning assembly, the taking and placing piece unit inserts and takes the protection mesh and moves to a preset position in the battery mesh mounting groove, the positioning assembly first moves downward to press and position the protection mesh on the diaphragm plate, and then the taking and placing piece assembly moves upward to completely separate from the protection mesh, the active tool separation mode of the taking and placing piece assembly can ensure that the protection mesh can be completely separated, and the electric cylinder structure is adopted to drive the taking and placing piece unit to perform the lifting action, so that the stability is high, the action precision is high, the speed and stroke are adjustable, the work efficiency of the taking and placing piece is ensured, and the technical problems of low taking success rate, low taking success rate of the mesh peeling off from the needle, prevention of the mesh from being out of position and other problems affecting the mesh quality and utility in the prior art are solved.

The application provides a non-contact metal strip non-damage automatic winding method and an automatic winding machine, and belongs to the technical field of metal processing. The technical problems such as easy material abrasion and complex setting separation mode of the prior art are solved. The non-contact metal strip non-damage automatic winding machine is provided with a strip winding mechanism on a rack, a strip separation device capable of automatically arranging the interval of separation pieces is arranged on one side above the strip winding mechanism, a support hinged seat is further arranged on the rack, the strip separation device support is hinged to the strip separation device through a first hinge shaft, the strip separation device support is provided with the strip separation device on one side of the strip separation device support, and the other side is provided with a swing driving mechanism capable of driving the strip separation device support to rotate around the hinge point so that the hydraulic expansion shaft of the strip separation device is close to but not in contact with the strip and can be separated by the separation piece unit. The application has the advantages of avoiding damage to the product, high accuracy and efficiency, and adaptability to different requirements.

The invention provides an aero-engine unit division decision-making method which comprises the following steps: step 1, according to the independence and interchangeability of unit functions and the realizability of structures, performing hierarchical unit division on an engine main engine, and by permutation and combination of the units of different levels, performing unit division on the units of different levels; determining all selectable unit division schemes; 2, calculating the average fault frequency of each unit body in all the unit body division schemes available for selection in the whole life period; 3, according to the result of the step 2, calculating the average repair time and the spare part cost of all available unit division schemes; step 4, calculating an evaluation index of each alternative unit division scheme according to the average repair time and the spare part cost of all the alternative unit division schemes; and 5, according to the evaluation index of each optional unit body division scheme, selecting an optimal scheme for aero-engine unit body division.

The layered trolley comprises a trolley body, guide rods are arranged on the two sides of the trolley body, two sets of layered supports are arranged at the positions of the guide rods, and a plurality of sets of connecting frame rods are arranged between the two sets of layered supports. The layered supports are erected on the two sides of the trolley body through guide rods. According to the utility model, one layer of loading space is additionally arranged through the layered bracket, and one more layer of workpieces can be loaded in the same furnace body space, so that the space utilization rate is greatly improved. The layered trolley allows two workpiece layers to be processed at the same time, compared with a traditional single-layer trolley, the number of workpieces processed in unit time can be remarkably increased, and therefore the production efficiency is improved. As more workpieces can be processed in the furnace at the same time, the energy consumption of the unit workpiece is reduced, and energy conservation and consumption reduction are facilitated.

The utility model relates to the technical field of ship hydraulic control equipment, in particular to a modularized integrated control valve group for a ship hydraulic clutch. The device comprises a main valve group, a first functional module valve group, a second functional module valve group, a third functional module valve group and a top plate are sequentially arranged above the main valve group, and the first functional module valve group and the third functional module valve group are the same in internal structure; according to the utility model, a modularized sandwich valve group framework is adopted, and standardized valve block units are superposed on the basis of a main oil inlet valve block, so that a main valve block does not need to be redesigned when a module is newly added, a control loop can be expanded only by increasing or decreasing the standardized units, and the volume and complexity of multi-path control are remarkably reduced; aiming at a ship high-salt-fog environment, the valve block base material is made of high-strength aluminum alloy and adopts the zinc-plated nickel alloy composite coating, the surface corrosion resistance is improved through the electroplating and passivation dual process, and meanwhile, the salt-fog-resistant elastic sealing ring is used, so that the leakage risk caused by corrosion is reduced.

The invention relates to the technical field of photovoltaic modules, in particular to a photovoltaic module and a manufacturing method thereof. The manufacturing method comprises the following steps: manufacturing a battery piece unit: placing a buffer rubber piece on a battery piece to obtain the battery piece unit; the buffer rubber part is at least arranged on the first surface and is arranged along the edge of the first battery; the battery piece units are placed on a plurality of welding strips, the second faces face the welding strips, the welding strips are laid at intervals in the second direction, and the welding strips extend in the first direction; a plurality of welding strips are laid on the first faces of the battery piece units, the welding strips are laid at intervals in the second direction, and the welding strips extend in the first direction and are in lap joint with the buffer rubber parts; and welding: welding the battery piece with the plurality of welding strips laid on the first surface and the second surface. According to the invention, the welding strip is laid on the prefabricated battery piece unit, and the battery piece unit is welded with the laid welding strip, so that the high-efficiency manufacturing of the photovoltaic module is realized.

The invention is suitable for the technical field of cylinder body machining, and provides a tool for coaxial positioning of a cylinder body and a cylinder body flange, the tool comprises a cylinder body flange coaxial positioning table, and the cylinder body flange coaxial positioning table is additionally provided with a first material conveying belt and a second material conveying belt which are arranged side by side; the cylinder body flange coaxial positioning table comprises a cylinder body flange coaxial positioning piece, and a plurality of unit positioning pieces are additionally arranged on the cylinder body flange coaxial positioning piece; the unit positioning piece comprises a rotating body adjusting body and a radius adjusting body, and the rotating body adjusting body comprises a rotating body and a lifting body; the rotating body is used for driving the lifting body and the radius adjusting body to transversely rotate and adjust, and the lifting body is used for driving the radius adjusting body to longitudinally adjust the position; the cylinder telescopic rod II is used for adjusting the rotating radius of the expansion head; coaxial positioning, efficient and accurate positioning and mounting of the cylinder body and the cylinder body flange are achieved, and the subsequent cylinder body is high in quality and stability.

The utility model relates to cement kiln equipment technical field, concretely relates to a kind of preheater wide body ceramic inner cylinder for cement kiln, including multiple annular distribution's hanging piece unit each hanging piece unit includes fixed seat and stabilizing lock piece, multiple ceramic hanging pieces connected at head and tail are installed between fixed seat and stabilizing lock piece, the connecting place of two ceramic hanging pieces connected is equipped with transverse gap, longitudinal gap is set between the two adjacent hanging piece units, stabilizing briquetting is installed at the intersection of transverse gap and longitudinal gap, the connection strength between the two adjacent hanging piece units can be strengthened by the installation of stabilizing briquetting, avoid the phenomenon that the two adjacent hanging piece units appear front and rear misregistration after material falling and hanging piece impact when using, to reach the purpose that the overall inner cylinder structure stability is improved.

A disc brake system includes a torque plate having a mounting portion (9) with an opening (11) shaped to receive a vehicle axle and a carrier portion (10) integrally formed with the mounting portion (9) as a one-piece unit. The carrier portion (10) includes an inboard leading pad support (302), an inboard trailing pad support (304), an outboard leading pad support (306), and an outboard trailing pad support (308). One or both of an inboard and / or outboard brake pad (120, 122) include a bearing surface engaged by a bearing surface on one of the pad supports when the disc brake system is actuated such that at least a portion of the at least one inboard and / or outboard brake pads is put in tension. At least one of the pad supports may include a slot defining the bearing surface. Methods of actuating and assembling the disc brake system are also disclosed.

The piezoelectric stop piece for the multi-station piezoelectric jack and the multi-station needle selector are used for limiting the guide needle when the corresponding guide needle is switched in the station. In the present application, by setting the piezoelectric stop piece in the piezoelectric jack, on the one hand, the piezoelectric stop piece is used to limit the guide needle when the guide needle is switched in the station, so that the guide needle can be more accurately switched to the predetermined station, on the other hand, the piezoelectric stop piece is used to drive the stop piece unit of the piezoelectric stop piece to swing together, the piezoelectric bending actuator is mature in the field of piezoelectric jack, stable in use, low in manufacturing cost, only the original piezoelectric ceramic part of the piezoelectric jack is used, the overall structure of the piezoelectric jack does not need to be changed, thereby the stability of the piezoelectric stop piece in work is improved, and the effect of killing two birds with one stone is achieved.

The application provides a wafer cassette replacing device, which comprises a supporting structure, a first supporting table and a second supporting table arranged on the supporting structure. A push piece unit is arranged below the first supporting table, which is used for pushing a wafer in a first wafer cassette upwards out of the first wafer cassette. A grabbing and moving unit for grabbing the wafer pushed out by the push piece unit is further arranged on the supporting structure, which is further used for conveying the grabbed wafer to an upper position of a second wafer cassette. A receiving unit is further arranged below the second supporting table, which can be extended upwards to the upper position of the second wafer cassette to receive the wafer grabbed by the grabbing and moving unit; the receiving unit is further used for moving downwards to place the received wafer in the second wafer cassette after receiving the wafer. The automation degree in the wafer manufacturing process is improved, and the wafer cassette misloading accidents caused by the operator's mistake in the manual replacing process are prevented.

The invention discloses a polygonal scroll type solar panel and application thereof, the polygonal scroll type solar panel comprises N groups of battery piece units, N is greater than or equal to 3 and is an integer, the N groups of battery piece units are sequentially arranged along a rolling direction, each group of battery piece units comprises one or more electrically connected battery pieces, the width of the ith group of battery piece units is Wi, and Wi = Wi-1 + delta W is satisfied, wherein i is equal to 2, 3,... N, and delta W is a preset width difference, so that the widths of the groups are gradually increased in sequence, namely W1lt; w < 2lt >; ... lt; wN, each group of battery piece units are connected through a flexible connecting structure, when the whole winding body is wound, each group of battery piece units expand outwards layer by layer in the radial direction due to sequential increasing of the width, so that the outer contour of the winding body is in a K-sided shape, and K is the number of each group of battery piece units; according to the invention, the N groups of battery piece units of which the widths are gradually increased are matched with the flexible connection structure, and a K-sided cylinder is formed during rolling, so that collaborative optimization of compact storage, stable stacking and large unfolding area is realized.

The utility model discloses a composite rubber fender, and belongs to the technical field of fenders. A composite rubber fender comprises a fender piece, a sealed hollow cavity is formed in the fender piece, the outer wall of the fender piece is sleeved with two connecting frames, the two connecting frames are installed at the end of the fender piece, an installing frame is installed at the end, away from the fender piece, of each connecting frame, the connecting frames are in sliding connection with the installing frame in the vertical direction, and the connecting frames are connected with the installing frame in a sliding mode. A binding piece is installed in the middle of the fender piece. Through the overall structural improvement and the hollow design of the main body, the dead weight of the fender piece can be reduced, then the protection coverage range of the fender piece in unit weight is enlarged, the fender piece is slidably installed on the installation frame through the connecting frame, the height of the fender piece can be adjusted in cooperation with the binding piece, and compared with a fixed fender piece, the fender piece is more convenient to use. The height of the fender piece can be flexibly adjusted according to different draught depths of a ship in different loading states, and therefore it is guaranteed that the fender piece can be consistent with a wharf in height when the ship arrives at a harbor.

The invention belongs to the technical field of photovoltaic cell manufacturing equipment, and particularly relates to a leveling assembly, an adsorption carrying table comprising the leveling assembly and a silicon wafer laser processing rotary carrying table. The structure of the leveling assembly comprises an elastic screw joint piece unit which is arranged on a rotary carrying table arm in a screw joint mode and used for pressing an adsorption carrying table downwards, and a leveling bolt which is arranged on the rotary carrying table arm in a screw joint mode and used for supporting the adsorption carrying table. And the fastening block unit is arranged on the lower surface of the rotary carrying platform arm and is used for clamping the leveled leveling bolt. The leveling assembly at least has the beneficial effects that in the leveling assembly, the elastic screw joint piece unit has the double functions of fully installing the adsorption carrying table and providing the leveling space, then the leveling bolt is rotated firstly, then the fastening block unit clamps the leveling bolt after leveling is completed, and the leveling effect is achieved. Finally, the adsorption carrying platform has an outstanding function of active leveling before being used.

A disc brake system includes a torque plate having a mounting portion with an opening shaped to receive a vehicle axle and a carrier portion integrally formed with the mounting portion as a one-piece unit. The carrier portion includes an inboard leading pad support, an inboard trailing pad support, an outboard leading pad support, and an outboard trailing pad support. One or both of an inboard and / or outboard brake pad include a bearing surface engaged by a bearing surface on one of the pad supports when the disc brake system is actuated such that at least a portion of the at least one inboard and / or outboard brake pads is put in tension. At least one of the pad supports may include a slot defining the bearing surface. Methods of actuating and assembling the disc brake system are also disclosed.

The invention relates to an automatic piecing unit (2) of a ring spinning machine (1) and a method of braking a spindle (3) of a ring spinning machine (1) by means of the automatic piecing unit (2). The automatic piecing unit (2) comprises a spindle braking unit (4) comprising clamping arms (6a, 6b) adapted to move laterally relative to each other in a linear motion guide (7). Each of the clamping arms (6a, 6b) is coupled with at least one clamping finger (8a, 8b) and each of the at least one clamping finger (8a, 8b) comprises one or more braking shoes (11) provided at an inner end thereof. The one or more braking shoes (11) are adapted to clamp a spindle flyer (10) of a spindle (3) of the ring spinning machine (1) to stop rotation of the spindle (3).

The utility model relates to a lifting type scraper device, and belongs to the technical field of silver bright steel bar production. Comprising a rack, two scraper units, namely a first scraper unit and a second scraper unit, are arranged on the top face of the rack in a spaced mode, lifting mechanisms are arranged between the scraper units and the rack respectively, and the lifting mechanisms control the corresponding scraper units to do lifting motion; an oil accumulating disc is arranged at the bottom of the machine frame, the silver bright steel bar penetrates through the two scraping piece units, the scraping piece units scrape water and dirt on the surface of the steel bar, and then the water and the dirt fall into the oil accumulating disc. The device is simple in structure and convenient to operate, the height of the scraper unit is adjusted according to the center of the material specification, water and dirt on the surface of the silver bright steel bar can be scraped off on line, the anti-rust effect is improved, the anti-rust period is prolonged, and the subsequent operation safety is guaranteed.

The invention relates to the technical field of bulletproof equipment, in particular to a method for repairing assembled ceramic bulletproof equipment, which comprises the following steps of: treating a bullet part of the bulletproof equipment, and removing broken or loose bulletproof ceramic chip units which are debonded with a rear lining cloth layer to form a to-be-repaired area; repairing the rear lining cloth layer of the to-be-repaired area; a stretching type honeycomb block with the same size as the area to be repaired is cut, and a replacement ceramic piece unit with the same size as the bulletproof ceramic piece unit is placed and fixed into a grid cavity of the stretching type honeycomb block; the stretching type honeycomb blocks with the filled lattice cavities are placed in the to-be-repaired area, and the stretching type honeycomb blocks and the repaired rear lining cloth layer are bonded and fixed. The method can be widely applied to battlefield rapid repair of various bulletproof equipment adopting the assembled ceramic composite structure, and has the advantages that the repair material is convenient to carry, the logistics pressure is small, the repair speed is high, and the protection capacity of the bulletproof protective tool is not reduced after repair.

The application provides a size self-defined solar silicon light piece splitting device, which comprises a fixing assembly, a rotating assembly and a sliding assembly; the fixing assembly comprises a fixing support and a fixing clamping module, the fixing support is provided with a fixing mounting groove, the rotating assembly comprises a rotating support, a rotating driving device and a rotating clamping module, and the rotating support is provided with a rotating mounting groove. The end of the silicon light piece is clamped by the sliding clamping block, and the preset stroke is advanced by the driving of the sliding driving device, the preset stroke corresponds to the splitting size of the silicon light piece, the splitting is realized by the hinging of the fixing support and the rotating support, the silicon light piece is split along the horizontal rotating shaft direction, the clamping and fixing of the fixing clamping module and the rotating clamping module at the two ends of the splitting position are matched, the stability of the splitting is improved, and the efficient splitting of multiple silicon light piece units can be realized by the driving advancement of the sliding driving device and the rotation of the rotating support.

The invention belongs to the technical field of building construction auxiliary equipment, and particularly discloses a splicing platform suitable for a special-shaped plank road bridge, the splicing platform comprises a hanging basket and a hanging piece unit, the hanging piece unit comprises a mounting plate, two sets of limiting plates, a pressing block and a fixing block, the pressing block is located below the fixing block, and a first spring is connected between the pressing block and the mounting plate; two ends of the steel structure main body are respectively positioned between the bottom of the limiting plate and the mounting plate; the two limiting plates are located on the two sides of the mounting plate correspondingly, the lower portions of the two limiting plates are hinged to the mounting plate, the tops of the two limiting plates abut against the slopes on the two sides of the mounting plate, and a second spring is connected between the two limiting plates; and a driving unit for driving the pressing block to descend is arranged on the fixing block, and the two limiting plates can be pushed to swing outwards in the descending process of the pressing block, so that the bottoms of the limiting plates make close contact with the steel structure body. The connecting stability of the splicing platform and the steel structure body can be improved, and therefore safety is improved.

The utility model relates to the technical field of door and window accessories, and particularly discloses an automatic lock device for doors and windows, which comprises a lock plate unit, a lock plate unit and a lock plate unit, the lock plate unit comprises a transmission rod, the transmission rod is provided with a lock plate, and the lock plate elastically moves on the transmission rod; the lock catch unit is provided with a clamping groove corresponding to the lock plate so that the lock plate can be clamped into the clamping groove, and an elastic piece is obliquely arranged above the clamping groove so that the lock plate can abut against the upper end of the elastic piece after being separated from the clamping groove; according to the automatic lock device for the door and window, when the lock plate makes contact with the lock catch unit, the lock plate can elastically move until the lock plate is clamped into the clamping groove and then is locked, during opening, the elastically-moving lock plate can be separated from the clamping groove, the lock plate abuts against the elastic piece, the lock plate is prevented from being pressed downwards and entering the clamping groove again, and therefore a window sash is unlocked and moved; compared with the prior art, the whole structure is simpler, the cost of the lock is relatively lower, and the service life of the lock can be prolonged under the condition that accessories are reduced.

The utility model discloses an adjustable ceramic handicraft which comprises a vase body, the vase body sequentially comprises a vase opening part, a vase body part and a base part from top to bottom, the upper end of the vase opening part is provided with an opening, the lower end of the vase opening part is connected with the upper end of the vase body part, and the lower end of the vase body part is connected with the upper end of the base part. The bottle body part comprises a bottom plate and ribs arranged on the bottom plate at intervals in the longitudinal direction and the transverse direction, the longitudinal ribs and the transverse ribs intersect to define a plurality of containing groove units, the bottle body part further comprises ceramic chip units capable of being installed in the containing groove units, each ceramic chip unit comprises a front face and a back face, the front face of each ceramic chip unit is a decorative face, and the back face of each ceramic chip unit is a decorative face. The ceramic chip units are installed in the containing groove units respectively, a plurality of decorative faces are spliced to form decorative patterns or figures, magnetic attraction devices are arranged on the back faces of the ceramic chip units, the ceramic chip units are fixed in the containing groove units through magnetic attraction, and ejection mechanisms are arranged at the bottoms of the containing groove units. The ejection mechanism ejects the ceramic chip unit out of the containing groove unit to be separated from the containing groove unit.

The invention discloses an automatic production device for building concrete prefabricated part assembly. A prefabricated part comprises a box body, a buckle, a blocking part and a steel wire rope. A bracket; the buckle conveying unit is arranged on the first support, the buckle conveying unit comprises a suction cup unit provided with suction cups, and the buckle conveying unit conveys the suction cups on the Y axis and the Z axis; the box body conveying unit comprises a third driving part and a rotating disc, the rotating disc is arranged above the base, and the output end of the third driving part is connected with the rotating disc; the positioning unit is arranged on the rotating disc, the positioning unit is fixedly connected with the rotating disc, and the positioning unit comprises a containing space with an opening in the upper portion for containing a box body; the pressing unit is arranged on one side of the positioning unit and comprises a fourth driving part and a pressing tool; the detector is opposite to the positioning piece unit so as to detect the positions of the buckle and the steel wire rope; compared with the prior art, the automatic production line has the beneficial effects that automatic production of concrete prefabricated parts can be achieved, and the assembling efficiency is high in the assembling process.