87results about How to "Small operating space requirement" patented technology

The invention relates to a side-opened package box for transporting the whole satellite or a satellite cabin and belongs to the technical field of satellites. The package box mainly adopts a side-opened structure and comprises a box body, a box door, and a door open / shut mechanism. A guide rail A is arranged on the inner side of the box door and a guide rail B is arranged on the bottom surface of the box body. When the box door is opened, the guide rail A on the inner side of the box door and the guide rail B on the bottom surface of the box body are positioned on the same plane and can realize seamless connection through a transitional guide rail C; and after the box door is opened, a sliding trolley can freely slide on a horizontal guide rail formed by the guide rails A, B, and C. The door open / shut mechanism comprises a pulley block, a rocking handle, a reducer, and a cable wire, wherein the pulley block is mounted on the top surface of the box body, the reducer is mounted on a lateral surface of the box body, the rocking handle is mounted on the reducer, and the cable wire is connected with the reducer, the pulley block, and the box door sequentially. The invention has the advantages that no hoist is needed, the requirement on operation spaces in factory buildings is low, and the satellites can be taken into and out of the box conveniently, safely, and reliably.

The invention provides a finding method of a multi-branch-circuit power generator stator winding grounded short circuit point. The method particularly comprises the following steps: (1) finding out the fault phase by utilizing megameter split-phase shaking insulation; (2) adding a direct-current power supply among m neutral points, setting a voltage meter at the outlets of each neutral point and a power generator over the ground, and finding out the fault neutral point through comparing the numerical reading of the voltage meter; (3) applying an alternating-current power supply over the ground at the fault neutral point, setting current meters on all branch circuits connected with the fault neutral point, and finding out the fault branches through comparing the numerical reading of the current meters; and (4) applying alternating-current power supplies over the ground at the fault neutral point, measuring all wire bars on the fault branch circuits one by one by adopting a tong-type current meter, wherein the measured current of the wire bars is suddenly changed to be zero, the wire bars are fault wire bars. The finding method of the multi-branch-circuit power generator stator winding grounded short circuit point provided by the invention is time-saving and labor-saving, the complex operation and welding quality hazard which are brought after each branch circuit is opened are prevented, and references are provided for the other same type of multi-branch-circuit large power generator stator winding grounded fault investigation.

The invention relates to a visible stomach tube guiding device which comprises a hollow pipeline, airbags for fixing a stomach tube and an airbag inflation guide tube. The hollow pipeline is provided with a groove capable of containing most of the stomach tube, a transparent hose which can be bent in any direction is arranged at the front end of the hollow pipeline, and a transparent thin film layer covers a front-end opening of the hose. In the whole pipeline, position of the front end can be adjusted through an internally-arranged fiber bronchoscope for anesthesia to find an entrance of an esophagus to be guided into the esophagus. The airbags which is positioned on the side of the groove in rear of the hose and inclines towards the middle after being inflated can completely surround and fix the stomach tube, and inflation of the airbags is implemented through the guide tube communicated with the airbags and provided with a self-sealing inflation valve. The visible stomach tube guiding device has the advantages of simplicity, convenience and quickness in operation, high success rate in one-time intubation, capability of realizing orthophoric guide by disposing the fiber bronchoscope and reduction of side damage caused by intubation.

The invention discloses an embedded external prestress implementation system and a reinforced RC column construction method thereof. The embedded external prestress implementation system comprises steel strand arrangement grooves, prestress steel strands, end anchoring devices, prestress transverse tension devices, a traction line lifting device and a prestress applying device. The steel strand arrangement grooves which spirally ascend by m circles and n vertical grooves are formed in the surface of a reinforced concrete column to be reinforced. The prestress transverse tension devices are evenly distributed at the intersection points of the vertical grooves and the steel strand arrangement grooves. The traction line lifting device comprises a traction line and m traction line buckles. When the prestress applying device pulls the traction line downwards, the m traction line buckles extrude the m prestress transverse tension devices, so that m transverse tension assemblies transverselyextend, and then the prestress steel strands are transversely tensioned. By the adoption of the transverse tension mode, the expected tension effect can be achieved only by providing 1 / 5-1 / 7 of tension force during longitudinal tension. Meanwhile, anchoring is conducted firstly, then tension is conducted, end anchoring is convenient, and the anchoring difficulty is greatly lowered.

The invention provides an instrument driving device, an instrument end assembly, a surgical instrument and a surgical robot. The instrument driving device comprises a base, a first driving shaft, a second driving shaft, a first turnover part, a second turnover part, a traction body head end fixing part, a first transmission assembly and a second transmission assembly; the first driving shaft rotates, and first torque is applied to the second turnover part through the first transmission assembly; and the second driving shaft rotates, and second torque is applied to the second turnover part through the second transmission assembly to drive the second turnover part to rotate around a center point. Therefore, through rotation of the first driving shaft and the second driving shaft, the second turnover part can be driven to do universal motion around the center point, and then a joint part of the instrument end assembly located at the far end can be controlled to do universal motion in an equal proportion mode.

The invention discloses a printed board connector comprising an inner conductor and a first outer conductor. The two sides of the external surface of the first outer conductor are symmetrically provided with first convex parts on the connected end of the connector and the printed board for being welded with the printed board, and the lower part is provided with second convex parts for locating onthe printed board. The first convex parts are electric conductors and electrically connected with the inner surface of the first outer conductor. The inner conductor extends to the outside of the endsurface of one end connected with the printed board of the first outer conductor to be welded with the printed board. The inner conductor is connected with one end of a coaxial line and comprises a jack. The connector at least comprises one insulator and is made of polyether-ether-ketone material. According to the printed board connector, the problems of large space occupation, poor reliability and fracture and deformation of the inner conductor in the prior art can be solved, the reliability of the connector can be enhanced and the operation space requirement can be reduced to the greatest extent.

The invention provides a wheel hub rotating tool for conveniently completing fan impeller assembling. The wheel hub rotating tool comprises a fixed support, a rotating mechanism, a wheel hub tool anda rotating locking device, wherein a wheel hub tool is placed on the fixed support; the rotating mechanism and the locking device are arranged between the wheel hub tool and the fixed support and controlled by an electrical control system; and the equipment wheel hub tool can be freely rotated and locked through the electrical control system. The wheel hub rotating tool has the following advantages that (1) the hoisting feasibility of all blade lifting positions during ship hoisting machine model selection needs to be considered, while the hoisting feasibility of only a single blade lifting needs to be considered through the rotating tool, the lifting performance requirement of equipment is low, and meanwhile, the operating space requirement for a ship deck is low; and (2) by rotating therotating tool, blade lifting is always conducted on the side, close to a transport ship, of a mounting ship, and time is saved.

The invention discloses a stacking device for power equipment. The stacking device comprises an upright post, a moving device, a lifting rotating device and a clamping device, wherein the moving device is arranged on the top of the upright post; the lifting rotating device is arranged on one side of the moving device and is connected with the moving device; and the clamping device is arranged at the lower end of the lifting rotating device. According to the stacking device, the mobile device and the rotary lifting device can drive the power equipment to move transversely and longitudinally androtate in the circumferential direction, so that the working efficiency of stacking the power equipment is improved, the requirement on the operation space is low, only manual assistance is requiredwhen the power equipment is stacked, the manual workload is greatly reduced, the safety of stacking the power equipment is improved, and potential safety hazards are reduced.

The invention discloses an intervertebral disc annulus fibrosis suture device, comprising a first outer needle and a second outer needle, wherein the first outer needle and the second outer needle arehollow, and holes are arranged on opposite side walls of the first outer needle and the second outer needle. The first outer needle is internally provided with a hose for driving the hose to protrudeout of the hole and bend into the hole of the second outer needle, and a wire guide frame arranged in the hose and connected with a suture at the end is used for driving the second driving mechanismof the wire guide frame to move along the inner wall of the hose. The second outer needle is internally provided with a thread tracing needle and a third driving mechanism, the thread tracing needle is provided with a clamping groove for clamping with the wire guide frame at a position corresponding to the missing hole, and the third driving mechanism is used for driving the thread tracing needleto move along the axial direction. The invention can conveniently and easily realize the suture of the rupture of the intervertebral disc fibrous annulus in the intervertebral foramen microscope, improve the operation convenience and reduce the demand for the operation space. A method for suture an annulus fibrosus of an intervertebral disc is also disclosed, that beneficial effect of which are described above.

The invention discloses a multitube barium sulfate solution sampling device. The device is used by arranging a pipette on the lower end of a front protraction frame by operating staff before use, connecting with an air suction pipe through a through hole inside the front protraction frame, then rotating a rotating pressure rod to check whether an air bag has air leakage conditions, then rotating the rotating pressure rod to lead an extrusion plate to compress the air bag so as to exhaust internal air, inserting the pipette into a sodium sulfate solution and then reversely rotating the rotating pressure rod to lead the sodium sulfate solution to enter in the pipette, observing the height of liquid in the pipette until the required amount is achieved, and holding a lifting handle so as to lead the pipette to leave away the sodium sulfate solution, until the device completes the working process. The device can safely and reliably draw sodium sulfate solution for experiments, the efficiency is high, the clean working environment can be helpfully maintained, and the physical power consumption of the operating staffs can be reduced.

The embodiment of the invention provides a tractor for liver operation under a laparoscope, and belongs to the technical field of tractors under laparoscopes. The tractor for liver operation under thelaparoscope comprises an outer pipe, a push rod and a traction piece, wherein the two ends of the outer pipe are through, the push rod is arranged inside the outer pipe, the push rod can stretch andretract inside the outer pipe, the traction piece is arranged on the push rod, the push rod and the traction piece form a containing space, the containing space is a closed ring shape, the containingspace can act on the liver, and the liver is pulled by the push rod. The technical effects that the operation space requirement is small, and liver traction is convenient are achieved.

The invention discloses a part inner hole coating machining method and system, and a device, relates to the technical field of laser additive manufacturing, and is used for machining a coating in an inner hole of a part, so that the service life of the part can be prolonged. The part inner hole coating machining method comprises the following steps: providing a prefabricated part with a hole structure; according to the coating cladding strategy, controlling a laser cladding device to form the coating in the hole structure of the prefabricated part, so that a part blank is obtained, wherein thecoating cladding strategy is determined by the structural parameters of the hole structure; and controlling a heat treatment device to carry out heat treatment on the part blank. The terminal devicecomprises a processor and a communication interface, so that the part inner hole coating machining method can be realized. The part inner hole coating machining method provided by the invention is used for preparing the wear-resistant coating of the inner hole.

An automatic liquid filling machine comprises a base, a support, a vacuum pump and a liquid storage bottle. The support is fixedly connected to the base, the vacuum pump is arranged on the base and is connected with an air suction pipe through a vacuum pipe, the air suction pipe is connected with a cork, the cork is connected with a liquid outlet pipe, the liquid outlet pipe is connected with a hose, the hose is connected with a valve, the valve is connected with a liquid suction pipe, the liquid suction pipe is connected with the liquid storage bottle, a lifter is connected with the top of the cork and is fixedly connected with the support, a liquid level sensor is fixed on the liquid outlet pipe and is connected with the valve through a signal line, and the valve is an electrically-controlled automatic valve. The automatic liquid filling machine has the advantages of simple structure, convenience in use, small size, low operating space requirement, high safety and sanitation degree and high production working efficiency.

The invention discloses a mounting device used for a T-shaped joint nodular cast iron pipe. The mounting device comprises an open hoop with a hinge, a power steel block, a power screw, an auxiliary steel block, an auxiliary screw, power polish rods, lantern rings and three-joint universal joints. The open hoop with the hinge is composed of a moment input hoop and a moment output hoop. The power steel block is composed of a right-hand thread hole steel block, a left-hand thread hole steel block, two thread-free through hole steel blocks. The power screw is composed of a right-hand thread powerscrew and a left-hand thread power screw. The auxiliary steel block is composed of eight steel blocks with thread-free through holes. The auxiliary screw is composed of four right-hand thread screws.The total number of the power polish rods is two, the total number of the lantern rings is four, and the total number of the three-joint universal joints is two. The device is reasonable and simple instructure, light and small in requirement of operation space; and compared with the traditional mounting manner of mounting the T-shaped joint nodular cast iron pipe through a guide chain, operationof the device is more convenient, rapid and reliable, and the device has popularization value.

The invention discloses a connecting device for motor connecting. The connecting device comprises an inner circle and an outer circle. The inner circle is formed by two semi-circular cone stages which are provided with bottom seats. An inner hole which is matched with a shaft is formed in the center of the inner circle. The outer circle is a cylinder provided with a bottom seat. An inner cone face which is matched with the outer diameter of the inner circle is arranged in the center of the outer circle. After the inner circle is sleeved on the shaft, the inner cone face of the outer circle is matched with the outer diameter of the inner circle, and the inner circle is tightly fixed on the shaft. According to the connecting device for motor connecting, due to the arranged inner circle and the outer circle capable of being sleeved outside the inner circle, the outer circle is directly arranged outside the inner circle and the connection is completed during mounting, assembling operation is simple and convenient, the machining accuracy requirements of the motor shaft and the hole of the connecting device are lowered, disassembling is easy, the requirements of operation space are low, the connection can be completed in a narrow axial space, the connecting device is suitable for being used in various environments, and meanwhile manufacturing cost is low, machining and manufacturing are easy, and the connecting device is suitable for mass production.

The invention discloses a portable glass fiber reinforced plastic pipe groove grinding machine, and particularly relates to the technical field of glass fiber reinforced plastic pipe grinding machines. The portable glass fiber reinforced plastic pipe groove grinding machine comprises a tensioner, a tensioning positioning mechanism is arranged in the tensioner, a grinding mechanism is arranged on one side of the tensioner, the tensioning positioning mechanism comprises two tensioning discs, a plurality of extending plates are fixedly arranged on the sides, away from each other, of the two tensioning discs, a main rotating shaft and three cam rotating shafts are movably connected between the two tensioning discs through bearings, the main rotating shaft is arranged among the three cam rotating shafts, a first-stage driven wheel and a second-stage driving wheel are fixedly arranged at the outer end of the main rotating shaft, and the first-stage driven wheel is arranged at the tail end ofthe main rotating shaft. The multiple tensioning sliding blocks are arranged to fix the multiple glass steel pipes with different pipe diameters, so that the structure of the grinding machine is simplified, the grinding machine is convenient to carry and suitable for a site, the grinding precision is controlled through a dial assembly, and therefore the conical groove with the needed angle can beaccurately ground.

The invention relates to a device for rapid liver transplantation by combining glue and magnetism with an intravascular stent and a using method of the device. The device comprises the intravascular stent and an extravascular magnetic gel strip, wherein needle pricks are arranged in the middle of the outer wall of the intravascular stent, the extravascular magnetic gel strip is arranged on the outer side of the intravascular stent, magnetic particles are arranged in the extravascular magnetic gel strip, and the intravascular stent is an expandable stent. The extravascular magnetic gel strip ismade of polyacrylamide-alginate double-network gel, and the magnetic particles are made of nanometer ferroferric oxide. The device has the characteristics of being quick, safe and reliable.

The invention discloses a three-dimensional oligodynamic convection heat transferring LED (light emitting diode) lamp, which comprises a shell, and a heat radiator set on the middle part of the shell, wherein the heat radiator is provided with several LED light source chips; a ventilating hole is formed on a side surface of the shell; the heat radiator is a finned radiator; the finned radiator is provided with a heat exchange channel which is separated by several vertical fins; the heat exchange channel is arranged towards the ventilating hole; by using such a structure, the interior of the shell is connected with external environment through the ventilating hole to radiate heat; when the air exchanges heat with the interior of the shell through the ventilating hole, because an air flow direction of the ventilating hole is in accordance with the direction of the heat exchange channel on the heat radiator; convection of air is formed in the shell and among vertical fins of the heat radiator; the air between interior and exterior of the shell is circulated, and the heat radiating effect is good.

The invention relates to a child safety seat. The child safety seat comprises a seat body (1), a rotating supporting seat (2), a base (3), and a locking mechanism. The seat body (1) is mounted at therotating supporting seat (2); the rotating supporting seat (2) is mounted at the base (3); the locking mechanism is arranged at the rotating supporting seat (2), and can rotate relative to the base (3) along with the seat body (1) and the rotating supporting seat (2); and the locking mechanism can achieve locking or unlocking between the rotating supporting seat (2) and the base (3) in a rotatingmode. The locking mechanism is arranged at the rotating supporting seat. The locking mechanism can rotate with rotation of the rotating supporting seat, and therefore operating with one single hand byan operator is achieved. The locking mechanism achieves locking and unlocking in a rotating mode, compared with the linear moving mode, operating is more labor-saving, the moving stroke is short, requirements on the operating space are fewer, and operating is more convenient.

Pipe withdrawing tongs comprise a chuck, a shuttle-shaped connecting block, two operating rods, two struts, two clamping sleeves, two ejector pins and two springs, wherein the chuck is fixedly connected to the middle of the shuttle-shaped connecting block and tightly clamps a small-diameter pipe; the two operating rods are symmetrically hinged to two sides of the shuttle-shaped connecting block; T-shaped through grooves are formed in the two operating rods along rod bodies of the operating rods; one ends of the two struts are respectively hinged to the two operating rods; the other ends of the two struts are respectively hinged to the two clamping sleeves; the inner sides of the two clamping sleeves are abutted to the outer wall of the small-diameter pipe; the lower end surfaces of the two clamping sleeves are abutted to a pipe end of a large-diameter pipe; the outer sides of the two clamping sleeves are respectively connected with the two ejector pins; the two ejector pins respectively penetrate in the T-shaped through grooves of the two operating rods; the two springs are respectively sleeved on the two ejector pins; one ends of the two springs are respectively abutted to the two clamping sleeves; the other ends of the two springs are respectively abutted to steps of the T-shaped through grooves through two gaskets; and the springs are always in a compressed state and push the two clamping sleeves to the outer wall of the small-diameter pipe. By using the pipe withdrawing tongs, inlaid pipes can be withdrawn by labor-saving pressing operation. The pipe withdrawing tongs have the advantages of simple structure and easiness in operation.

The invention provides a trigger device and automatic injection equipment, and relates to the technical field of injection aiding equipment. The trigger device comprises a base frame, a floating support, a pressing assembly and a triggering assembly, wherein the floating support is slidably connected to the base frame in a first direction, and the floating support is provided with a mounting position used for mounting a device to be triggered; the pressing assembly is installed on the base frame and provided with an outwards-protruding pressing head; the triggering assembly comprises a connecting base fixedly connected to the floating support and a connecting rod mechanism installed on the connecting base, and the two ends of the connecting rod mechanism are a pressing end and a triggering end respectively; when the floating support is located at a first position, gaps are reserved between the pressing head and the pressing end and between the triggering end and a trigger of the device to be triggered; and when the floating support slides to a second position relative to the base frame, the pressing head presses the pressing end, and the connecting rod mechanism drives the triggering end to move towards the trigger and to trigger the trigger. When the triggering device is used for a needle-free injector, injection efficiency is high, and the amount of consumed manual labor is small.

The invention relates to a continuous film coating device for an inner wall of an outer glass tube of a solar heat collecting tube. The device comprises a vacuum extractor, wherein the vacuum extractor is connected with the orifice end of the outer glass tube; a glass tube supporting device is arranged at the round head end of the outer glass tube; a movable high frequency device which is connected with the outer glass tube is arranged at the lower part of the outer glass tube; and a film coating device corresponding to the high frequency device is arranged in the outer glass tube. Meantime, the invention also discloses a film coating process using the device. The invention can directly coat a reflecting film with a designed radian according to the size of the central angle of the reflecting mirror of the glass tube, is suitable for large-scale mechanized production, and can greatly improve the film coating rate and ensure the film coating quality; and because a heat source is movable, the requirement for a vacuum operation space of vacuum film coating is greatly reduced, and a large vacuum chamber does not need to be established, thereby saving the production cost, greatly reducing the vacuum extracting time, and improving the production efficiency.

The present invention provides a fracture fixing steel plate and a steel plate fixing system and relates to the technical field of medical devices. The fracture fixing steel plate comprises a steel body portion and fixing portions for fixing the steel body portion, at least two through-holes penetrating a first surface and a second surface are arranged in the steel body portion, the through-holesare used for passing of steal wires, and the fixing portions are arranged on the second surface of the steal body portion. Due to the fact that at least two through-holes penetrating the first surfaceand the second surface are arranged in the steel body portion of the fracture fixing steel plate, both ends of the steel wires can penetrate into the through-holes at both sides from the first surface of the steel body portion to penetrate out from the second surface of the steel body portion, under a cooperation of an arthroscope, the steel wires can pull the fracture fixing steel plate to a fracture portion from in vitro in a pre-route, thus the fixing portions arranged on the second surface of the steel body portion can be fixed on a fracture block portion to effectively fix fracture blocks; since the fracture fixing steel plate can be introduced into the fracture portion from in vitro, operations are convenient.

The invention relates to a technique stabilizing room concrete pillars joint points by pasting fiber cloth. First add element concrete at the bases of the pillars around the core section in pillar communication area, namely the concrete haunch, forming the triangle concrete blocks. Then paste fiber cloth on the surface of the blocks and the pillars joining the blocks and the joints main bodies together.

The invention discloses an equipment lock applied to a server, which comprises a mounting seat arranged on a server case, a lock cylinder telescopically arranged on the mounting seat, and an unlocking handle slidably arranged on the mounting seat and used for driving the lock cylinder to do telescopic motion, and the front end of the unlocking handle extends to the front end of the server case. The sliding direction of the unlocking handle is parallel to the plugging sliding direction of the server case in the server cabinet; and the lock cylinder is matched and locked with a lock catch on the inner wall of the server cabinet when extending out for a preset length. Thus, when the server needs to be unlocked, a user only needs to pull the front end of the unlocking handle towards the outside of the server cabinet, the operation that the lock cylinder retracts into the installation base and the server case is pulled out can be achieved at the same time, the unlocking operation of the server is completed in one step, the unlocking operation of the server in the cabinet can be conveniently and rapidly achieved, and the unlocking efficiency of the server is improved. The plugging, unplugging, dismounting and mounting efficiency of the server in the cabinet is improved, and meanwhile the requirement for the operation space is lowered.

The invention discloses an embedded external prestressing implementation system and a construction method for strengthening RC columns, which include steel strand laying grooves, prestressed steel strands, end anchoring devices, prestressed transverse stretching devices, traction line lifting devices and Prestressing device. The surface of the reinforced concrete column to be reinforced is opened in the form of m coiled helical strand routing trough and n vertical grooves; prestressed horizontal tensioning devices are arranged at the intersection of the vertical grooves and the steel strand laying grooves; the pulling wire lifting device includes pulling wires and m a traction line buckle; when the prestressing device pulls the traction line downward, m A pull wire clip will squeeze m A prestressed transverse tension device, so that m A transverse tensioning component is stretched transversely, thereby making the prestressed steel strand transversely stretched. The present invention adopts the way of transverse stretching, and only needs to provide 1 / 5~1 / 7 of the stretching force during longitudinal stretching to achieve the expected stretching effect. At the same time, it adopts anchoring first and then tensioning, which facilitates anchoring at the end and greatly reduces the difficulty of anchoring.

The invention discloses a portable window breaker based on the electromagnetic principle, which comprises a sleeve, a partition plate is fixedly connected to the middle of an inner cavity of the sleeve, connecting mechanisms are fixedly connected to the front portion of the inner cavity of the sleeve, the number of the connecting mechanisms is two, and magnets are fixedly connected into the two connecting mechanisms in an inserted mode. A window breaking mechanism is jointly and movably connected between the two connecting mechanisms, a circuit board is fixedly connected to the rear end of thepartition plate, a rear connecting cover is fixedly connected to the rear end of the sleeve, a front connecting cover is fixedly connected to the front end of the sleeve, and a protection mechanism is fixedly connected to the front end of the front connecting cover. Handheld rings are fixedly connected to the left portion and the right portion of the outer surface of the sleeve correspondingly, and a lifting ring is fixedly connected to the rear end of the rear connecting cover. According to the portable window breaker based on the electromagnetic principle, it can be guaranteed that the window breaking force is constant and stable, and the portable window breaker is convenient to carry and easier to operate and use.

A method for manufacturing a transparent LED display, comprising: coating a transparent conductive layer on a transparent substrate; using a mask to form a pad by vacuum sputtering on the transparent conductive layer; etching a driving electrode on the transparent conductive layer, and driving the electrode One end of the electrode is connected to the pad; the pad is coated with solder paste by printing; the LED device is fixed on the pad through the solder paste; the other end of the driving electrode is crimped to the drive circuit board; transparent non-conductive optical glue is used Bond the transparent substrate to the transparent front protective panel. The invention forms pads by vacuum sputtering. Compared with the traditional method, the pads are flatter and have the ability to form multiple pads at one time. With the help of a mask plate, batch vacuum can be realized for pads of any number and shape. Sputtering greatly improves production efficiency. Applying solder paste by printing improves the efficiency of solder paste application. In addition, through the above-mentioned means, the requirements on the operating space are also reduced, and the pixel density is further improved.