242results about How to "No interference" patented technology

The invention relates to a laser wireless energy and signal synchronous transmission system, in particular to a laser wireless energy and signal synchronous transmission system for a rotary motion mechanism, which is used for solving the defect that the existing SLWPIT technology still has more limitations in the application of a rotary mechanism although the existing SLWPIT technology meets the requirement of long-distance transmission to a certain extent. The laser wireless energy and signal synchronous transmission system for the rotary motion mechanism comprises a stator part and a rotor part, and considers that an all-optical link realizes laser wireless energy and signal synchronous transmission in a rotary state from the system level, so that stable energy transmission efficiency can be kept in the rotary state; the system has good anti-electromagnetic interference capability and strong environmental adaptability.

The invention relates to the technical field of mechanical transmission, and provides a connecting rod transmission mechanism and a mirror image engine. The connecting rod transmission mechanism comprises a power sliding block, a power connecting rod and two power pistons, the power connecting rod comprises a connecting rod base body and two linear rod parts, the linear rod parts extend in the first direction, the front end of each linear rod part is connected with one power piston, and the rear end of each linear rod part is fixedly connected with the connecting rod base body; the two linear rod parts are located on the two opposite sides of the connecting rod base body in the first direction, and the power sliding block is installed on the connecting rod base body in a sliding mode in the second direction. The linear rod part does not need to contain a bearing, rotation motion does not exist, the overall cross section is uniform or roughly uniform, standard sinusoidal motion / cosine motion is met, the size reduction design of the linear rod part and the air cylinder is facilitated, the compression ratio in the air cylinder is increased, the combustion efficiency is improved, the overall structure of the engine is more compact, and the needed engine cabin space is reduced. And the power-to-weight ratio and the acceleration performance of the vehicle can be improved.

The invention relates to a method for detecting bacterial endotoxin in a melphalan hydrochloride bulk drug, and belongs to the technical field of drug analysis. The invention provides a test solution for detecting bacterial endotoxin in a melphalan hydrochloride raw material medicine, which comprises a test product melphalan hydrochloride raw material medicine, a 2-8 DEG C sulfobutyl beta-cyclodextrin sodium water solution and calcium and / or magnesium ions. The detection method disclosed by the invention is simple to operate, the sample can be dissolved in BET water without reanalysis, and the detection result is accurate; no organic solvent is used for preparing a test solution, so that the safety to operators is good, and bacterial endotoxin interference experiments prove that no interference effect exists; and the detection limit of the bacterial endotoxin in the melphalan hydrochloride bulk drug can reach 0.2 EU / mg.

The invention belongs to the technical field of medical instruments, and particularly relates to a stitching instrument for an endoscope. Comprising a fixed handle, a fixed bolt, a needle mounting button, a rotating assembly, a flushing assembly, a sleeve, a protective cap, a bending device, a movable handle, a suture steel wire, a pressing plate steel wire, a forceps head short pipe and a suture needle holding assembly. A movable handle mounting hole is formed in the upper end of the movable handle, the movable handle mounting hole and a movable handle mounting column of the fixed handle are correspondingly mounted, the near end of the sleeve penetrates through a sleeve hole in the far end of the fixed handle and is matched with a groove in the far end of the rotary connecting rod, and the far end of the sleeve is connected with the bending joint assembly; the near end of the forceps head short tube is connected with the bending joint assembly, and the far end of the forceps head short tube is connected with the suture needle holding assembly; the near end of the suture steel wire is in fastening connection with the near end of the movable handle through a steel wire lock catch, and the far end of the suture steel wire is connected with a rack seat in the suture needle holding assembly and used for driving the suture needle holding assembly to perform continuous suture; and the flushing connector is embedded into the upper rotary shifting wheel and is connected with the flushing hole at the near end of the sleeve.

The invention discloses an automatic tray placing device and method based on visual identification, and the automatic tray placing device based on visual identification comprises a conveying line used for conveying products to be placed, a suction cup assembly, a visual identification assembly, a movement assembly and a discharging tray. The suction cup assembly comprises a rotary disc and a plurality of suction nozzles. The visual identification assembly is used for acquiring image information and position information of to-be-placed products in the target area; the motion assembly is used for driving the turntable to move and rotate according to the image information and the position information; and a discharging position is arranged on the discharging disc. The automatic tray placing method based on visual identification comprises the following steps: acquiring image information and position information of a to-be-placed product in a target area; and the turntable is driven to move and rotate according to the image information, the position information and the conveying speed of the conveying line. According to the automatic plate placing device and method based on visual identification, automatic plate placing can be achieved, and the plate placing efficiency is high.

The utility model relates to the field of medical instruments, in particular to a capsule core and a capsule endoscopy. The capsule core comprises a lens base plate and a lamp panel which are connected through an FPC, an inner hole is formed in the lamp panel, a lens is arranged on the lens base plate and penetrates through the inner hole, and a fixing device which is matched with the lamp panel and used for installing the lamp panel on a base of the lens is arranged on the base of the lens. According to the invention, the lamp panel is fixed on the lens base through the fixing device, so that the lamp panel can be prevented from rebounding and tilting.

The utility model discloses a flexible grinding and polishing diamond abrasive belt wheel which comprises a structure supporting body assembly, a first diamond abrasive belt piece, a locking screw, a locking pressing plate, a cutter bar, a second wheel disc and a third wheel disc, the first diamond abrasive belt piece is arranged on the outer surface of the structure supporting body assembly, and the locking screw is arranged at one end of the structure supporting body assembly. According to the flexible grinding and polishing diamond abrasive belt wheel, the diamond abrasive belt piece prefabricated body is of a sectioning structure, so that heat dissipation, cooling and chip removal of the grinding and polishing surface are facilitated, complete attachment, local attachment or clearance fit can be achieved by arranging the three sets of abrasive belt pieces in different shapes and pressing after bending or direct punching forming, the wheel disc is of a rubber coating wheel structure, and the abrasive belt pieces are not prone to deformation. According to the diamond abrasive belt wheel, the contact area with the surface of a part to be machined is increased, then the grinding and polishing machining efficiency is improved, the abrasive belt wheel supporting body is easy to replace after being abraded through threaded connection, the abrasive belt wheel supporting body can be repeatedly used, and the diamond abrasive belt wheel can also be used for grinding and polishing machining of blades or blade bodies or other characteristic faces of the blades.

The application relates to the technical field of robots, and provides a cooperative work mechanical arm and a control method thereof. The application comprises a first mechanical arm, a second mechanical arm, a third mechanical arm and a fourth mechanical arm, the first mechanical arm, the second mechanical arm and the third mechanical arm are located on a first track, the fourth mechanical arm is located on a second track, the first track and the second track are arranged in parallel, and the first track and the second track are straight tracks; a first safety distance is kept between the second mechanical arm and the first mechanical arm, a second safety distance is kept between the third mechanical arm and the first mechanical arm, and the second safety distance is greater than or equal to the first safety distance. The beneficial effect is that the multiple mechanical arms have different safety distances with the first mechanical arm, the interference between the mechanical arms during work is avoided, the work can be cooperatively completed, and the maximum cooperative work space is obtained.

The invention discloses a method for simultaneously and rapidly measuring the content of multiple elements in nano-diamond, which comprises the following steps: firstly, burning a nano-diamond material in an environment of 850 + / -10 DEG C in the presence of oxygen until the weight is constant, and then dissolving the obtained residue in a solution; preparing 3-5 parts of gradient series mixed standard solutions from the single-element standard solutions according to the content range of a to-be-tested sample; finally, carrying out data acquisition on the emission spectrum light intensity of the standard substance iron, silicon and calcium elements, and drawing a standard working curve of each element according to the corresponding relationship between the element content and the emission spectrum light intensity; and substituting the emission spectrum light intensity of the iron, silicon and calcium elements of the sample to be detected, which is collected by the instrument, into the standard working curve, and calculating the content of the iron, silicon and calcium elements of the sample to be detected. The method solves the problem of sample solution preparation when the nano-diamond is determined by the ICP spectrometer, the sample solution preparation process is simple, and the determination process is not interfered.

A mask fastening system and an anesthetic airway auxiliary management device, which relates to a fastening system and an anesthetic airway auxiliary management device. The present invention aims to solve the problem that the existing mask pressing method cannot adjust the degree of mask pressing at any time, resulting in the problem that it cannot be applied to different types of patients and air leakage. The driving system and multiple transmission systems of the mask fastening system of the present invention are installed in a shell, and the tensioning rope is buckled on the mask and extends into the shell. After passing through multiple transmission systems, the first and second ends are finally accommodated in the driving system. The driving system drives the first and second ends of the tensioning rope to move so that the length of the tensioning rope outside the driving system changes, which is then converted into a change in the size of the force of the tensioning rope to fasten the mask; when tightened, the tension on the tensioning rope outside the driving system is the same. Two flexible arms are installed on the left and right sides of the mask fastening system to form an anesthetic airway auxiliary management device. The present invention is used for anesthetic airway auxiliary management.

A tail lamp light blocking structure comprises a light blocking piece and a decorating part, the decorating part is provided with a light blocking plate, a shell plate and an installation part, the shell plate is provided with at least one lamp hole, and the installation part is provided with an installation hole or an installation buckle so that the decorating part and other parts can be installed together. The width of the clamping groove is larger than the thickness of the circuit board, so that the light blocking piece can be clamped with the circuit board to form an integrated structure, and when the decorating part and the circuit board are assembled together, the light blocking piece and the light blocking plate are jointed to form a complete shading structure; the shading structure divides a lamp hole in the shell plate into at least two lamp holes, namely a first lamp hole and a second lamp hole. The light blocking piece and the decorating part are separately formed in an injection molding mode through a split structure, the injection molding process cannot be affected due to the structure, the light blocking piece can be set with the corresponding thickness according to needs and is not affected by the thickness of the decorating part, and the light blocking piece and the circuit board can be clamped together so that positioning of the light blocking piece can be more accurate, and light can be effectively shielded; light is prevented from jumping out of the preset area to avoid light leakage.

The invention discloses a novel fireproof iron door, relates to the technical field of manipulators, and solves the problems that if the adopted fireproof iron door is too thin, the fireproof iron door is easily sucked to be flat, air leakage and damage of the iron door are caused, and the fireproof iron door does not work, and if the adopted fireproof iron door is too thick, the fireproof iron door is inconvenient to open and close and large in limitation. The novel fireproof iron door comprises two groups of iron door base columns, a transverse beam, a retractable wind shielding mechanism and an expanding roller shutter mechanism, and the transverse beam is mounted between the two groups of iron door base columns. According to the mine safety protection device, the multiple sets of vertical stop levers can be matched with the horizontally-arranged T-shaped stop levers to stably and firmly support and protect the roller shutter door plates arranged on the side faces of the vertical stop levers, and the problems that due to negative pressure generated by a mine, the roller shutter door plates are sucked to be flat and the like are solved. And when the structure is adopted for supporting and protecting the roller shutter door plate, the roller shutter door plate can be arranged to be thin, and the opening and closing operation of the fireproof iron door is more convenient.

The invention relates to the technical field of automobile part machining, in particular to a rapid demolding mold for automobile part stamping, which comprises a lower mold base and an upper mold base arranged right above the lower mold base, a stamping cavity is arranged in the lower mold base, and a stamping auxiliary assembly is arranged in the stamping cavity. A demolding auxiliary assembly is arranged on the surface of the upper mold block. The demolding conditions of different types of automobile parts can be more flexibly treated through cooperative demolding force in the vertical direction, the demolding resistance can be more effectively overcome by adjusting the thrust of the second micro electric cylinder and the stroke of the ejector plate, it is ensured that the parts are smoothly demolded, and the demolding efficiency is improved. The downward pushing action of the ejector plate can prevent the punch forming part from being clamped in the mold due to top residual adsorption force or friction force in the later demolding period, it is guaranteed that the punch forming part can be completely separated from the mold, the demolding integrity and success rate are improved, the rejection rate caused by incomplete demolding is reduced, and the product quality is improved. And the production efficiency and the product quality are improved.

The utility model relates to a photovoltaic module detection device, and the device comprises a conveying mechanism which comprises a first conveying assembly which is used for conveying a photovoltaic module; the second conveying assembly is located on one side of the first conveying assembly, the second conveying assembly is used for conveying a photovoltaic module, a detection station is formed between the second conveying assembly and the first conveying assembly, and the photovoltaic module is located on the detection station for detection; the light reflecting mechanism is arranged above and / or below the detection station, a light reflecting space is formed between the light reflecting mechanism and the detection station, and the light reflecting mechanism is used for uniformizing light in the light reflecting space; the lighting mechanism is arranged in the light reflecting space, and the lighting mechanism is used for lighting the interior of the light reflecting space; the imaging mechanism is used for obtaining an image of the photovoltaic module; and a probe mechanism. The technical problem that the false detection rate of power-on detection of the photovoltaic module is high is solved, and the technical effect of improving the power-on detection accuracy of the photovoltaic module is achieved.

The invention discloses an opening-adjustable throttling orifice plate, which relates to the technical field of medium throttling, and comprises a plate body, at least one chute arranged in the center of the surface of the plate body in a penetrating manner, at least one shielding hole formed in the side wall of the plate body, a feeding rod arranged in the shielding hole, and a blocking cylinder arranged on the outer wall of the feeding rod in a sleeving manner. The main shaft sealing device has the beneficial effects that the flow and pressure of main shaft sealing can be stabilized by adjusting the opening degree in multiple directions, and river water and water in a water tank are prevented from entering the top cover.

The invention provides a quick pressurizing method for a single crystal furnace, which is mainly used for pressurizing an auxiliary chamber of the single crystal furnace, and is characterized in that external gas is introduced into the auxiliary chamber before the auxiliary chamber of the single crystal furnace is separated from a main chamber, so that the auxiliary chamber is recovered from a negative pressure state to a normal pressure state. According to the rapid pressurizing method for the single crystal furnace, the compressed gas is introduced into the auxiliary chamber to replace the existing inert gas, and the flow of the compressed gas is automatically controlled, so that the negative pressure state of the auxiliary chamber can be rapidly changed into the normal pressure state, no gas harmful to growth of a crystal bar is left in the auxiliary chamber, and no residual waste gas is generated on the inner wall of the auxiliary chamber; meanwhile, the use cost of inert gas for single crystal drawing can be reduced, and the utilization rate of matching of the auxiliary chamber and the main chamber is improved; according to the method, the cooling time of the auxiliary chamber can be shortened to be within 60 s from existing 4 min, the production efficiency of the whole crystal pulling process is improved, high operability and stability are achieved, safety is achieved, the automation degree is high, and personnel interference is not needed.

The utility model provides a secondary locking connector without abnormal sound, which comprises a male end connector and a positioning device, the positioning device comprises an assembling sliding block, a locking rod and a convex rib, the assembling sliding block corresponds to the interior of a buckling cavity and is in sliding connection with the rear end of a male end shell, the rear end of the locking rod is fixed at the front end of the assembling sliding block, and the convex rib is fixed at the rear end of the assembling sliding block. A locking boss protruding downwards is arranged at the front end of the locking rod, the rear end of the locking boss abuts against the front end of the buckle assembly, a limiting groove is formed in the front end of the assembling sliding block, the rear end of the locking rod corresponds to the lower side of the limiting groove, a third limiting boss is arranged at the rear end of the buckle assembly, and the third limiting boss is correspondingly arranged in the limiting groove. A gap exists between the upper end face of the locking rod and the lower end face of the third limiting boss, the convex rib is fixed to the upper end face of the locking rod and corresponds to the gap, and the assembly sliding block has the advantages that abnormal sound cannot be generated when the assembly sliding block slides, light interference is relieved after secondary locking, and interference force cannot be caused to the secondary locking state.

The utility model discloses a tunnel vault settlement monitoring device and system, and the system comprises a plurality of monitoring devices which are sequentially arranged at intervals along the extension direction of a tunnel. The monitoring device comprises a bidirectional laser range finder and two reflecting plates. The bidirectional laser range finder is hoisted at a monitoring point of a tunnel vault, and the two laser range finding probes respectively point to the reflecting plates at two reference points of the tunnel ground. The two laser ranging probes emit laser beams to the two reflecting plates respectively. And under the action of the reflecting plate, laser emitted by the laser ranging probe is reflected back to the laser ranging probe and is received by an induction end arranged on the laser ranging probe, so that the distance between the laser ranging probe and the reflecting plate, namely the distance between a monitoring point and a reference point, is measured. The distance between the monitoring point and the tunnel ground can be accurately calculated by combining the distance between the monitoring point and the reference point measured by the two laser ranging probes, and then the settlement amount of the vault at the monitoring point is determined.

The utility model provides a spring distributing and blocking device which comprises a parallel opening and closing air cylinder, a first clamping block, a second clamping block, a first distributing assembly and a second distributing assembly, and the parallel opening and closing air cylinder comprises a first pneumatic claw and a second pneumatic claw; the first material distributing assembly comprises a first supporting block, a first guide shaft, a first spring and a first material distributing block, the first supporting block is arranged on the first clamping block, the first spring is arranged between the first material distributing block and the first supporting block, one end of the first guide shaft penetrates through the first supporting block, and the first spring is connected with the first material distributing block; and a first stop block is arranged at the other end of the first guide shaft. The distributing block of the spring distributing and blocking device meets the use requirement that irregular-shaped part products are firstly clamped and then assembled by pressing the springs, equipment cost is saved for companies, meanwhile, when the parts are taken out for return stroke after being assembled, the distributing block can move left and right, and injector parts do not interfere with the distributing block when being taken out.

This invention provides an optoelectronic interconnect structure and its fabrication method. The aim is to obtain a first substrate with an optical interconnect network and a second substrate with an electrical interconnect network by separately placing optical interconnect networks and electrical interconnect networks on different core layers. The first substrate with the optical interconnect network and the second substrate with the electrical interconnect network are then interconnected to obtain a substrate that possesses both optical and electrical interconnect functions. This ensures that the fabrication processes of the optical interconnect network and the electrical interconnect network do not interfere with each other, avoiding the risk of substrate warping and increasing the flexibility of wiring for the electrical interconnect network used for electrical interconnect functions.

The utility model discloses a disc granulator which comprises a rack and a granulation disc arranged in the rack, an environment-friendly particle storage assembly and a powder storage assembly which are used for feeding materials into the granulation disc are arranged above the rack, and the rack is further provided with a spraying assembly used for conveying binders to the granulation disc. According to the disc granulator provided by the utility model, chemicals are supplied into the granulation disc through the particle storage assembly and the powder storage assembly, so that continuous feeding can be realized, and meanwhile, the spraying assembly is used for conveying a binder to the granulation disc, so that the heat generated by friction is reduced, the potential safety hazard is reduced, and the production efficiency is improved. Meanwhile, due to the addition of the binding agent, the binding between the external medicine and the particles is better, the number of the external medicine particles processed at a time is larger, the processing quality is better, and therefore the processing efficiency and the quality after processing are improved.

The invention discloses a method for simultaneously and rapidly determining the contents of multiple elements in ferrotitanium, which comprises the following steps: firstly, selecting 3-5 ferrotitanium standard substances with known contents of silicon, manganese, phosphorus, aluminum and titanium elements to form a concentration gradient, and crushing a sample to be detected and the selected standard substances into particles of less than 40 meshes; dissolving a to-be-detected sample and the selected standard substance in the solution; carrying out data acquisition on the emission spectrum light intensity of the standard substance silicon, manganese, phosphorus, aluminum and titanium elements, drawing a standard working curve of each element according to the corresponding relationship between the element content and the emission spectrum light intensity, and substituting the emission spectrum light intensity of the silicon, manganese, phosphorus, aluminum and titanium elements of the sample to be detected, which is acquired by the instrument, into the standard working curve; and calculating the contents of silicon, manganese, phosphorus, aluminum and titanium elements in the to-be-detected sample. The method solves the problem of preparation of the sample solution when the ferrotitanium is measured by the ICP spectrograph, the preparation process of the sample solution is simple, and the measurement process is not interfered.

The utility model discloses a multifunctional submarine cable for offshore wind power, which comprises a body, a plurality of uniformly distributed core wires are arranged on the inner side of the body, the core wires comprise a plurality of electric unit core wires (1) and a pipeline unit core wire (2), the diameter of the pipeline unit core wire (2) is the same as that of the electric unit core wires (1), and the diameter of the pipeline unit core wire (2) is the same as that of the electric unit core wires (1). And a reinforcing layer (2.1) for preventing the pipeline unit core wire (2) from deforming is arranged on the outer layer of the pipeline unit core wire (2). The utility model provides the multifunctional submarine cable for offshore wind power, which integrates a gas transportation pipeline and an electric unit core wire, so that the submarine cable has an electric signal transmission function and a gas transportation function at the same time, the laying work amount is reduced, and the electric signal transmission and the gas transportation are ensured not to interfere with each other.

A kind of paint stirring equipment, it includes chassis, stirring cylinder installed on chassis, drive motor installed on chassis and located in the side of stirring cylinder, drive rod is passed in stirring cylinder and extends from the bottom of stirring cylinder, positioning component for the auxiliary positioning of drive rod, stirring frame installed on drive rod, power connection component connected drive motor and stirring cylinder, power connection component is arranged below stirring cylinder and is located in the inside of chassis, the drive motor is rotated by power connection component and drives drive rod, the stirring cylinder includes cylinder main body and sleeve pipe, drive rod is passed in the sleeve pipe of stirring cylinder, the stirring frame includes butt plate, connecting ring located below butt plate, stirring plate connecting butt plate and connecting ring, the butt plate of stirring frame is installed on drive rod.The utility model can eliminate the hidden danger of leakage, moreover, when cover plate is opened, it will not produce interference, effectively reduce the overall height of product, and it is practical.

The utility model relates to the technical field of power equipment, and discloses an L-shaped gantry crane capable of preventing porcelain bottles from falling off. Comprising a telegraph pole and a hoisting frame and further comprises a protection assembly located on the inner wall of the telegraph pole, a supporting piece used for improving the stability of the hoisting frame, a lifting and adjusting assembly located on the inner wall of the hoisting frame, an insulating piece used for insulating the lifting and adjusting assembly and a fixing piece used for improving the stability of the lifting and adjusting assembly. According to the utility model, the protection assembly is arranged to ensure that the slide wire is in the groove, the upper structure and the lower structure are not interfered, the stability of the lifting frame can be conveniently improved by arranging the supporting piece, the position of the pulley can be conveniently lifted and adjusted by arranging the lifting and adjusting assembly, and the lifting and adjusting assembly is arranged, so that the lifting and adjusting efficiency is improved. The lifting and adjusting assembly can be conveniently insulated by arranging the insulating part, and the stability of the lifting and adjusting assembly can be conveniently improved by arranging the fixing part.

The utility model discloses a reducing joint for a water tank flushing pipe. The reducing joint comprises a first joint and a second joint, the inner diameter of the first connector is different from that of the second connector, a first inner cavity is formed in the first connector, and a second inner cavity is formed in the second connector. A plurality of first anti-skid teeth are arranged on the outer surface of the first joint in the radial direction to form a first anti-skid tooth array; and a plurality of third anti-skid teeth are arranged on the outer surface of the second joint along the radial direction to form a third anti-skid tooth array. The surfaces of the connectors at the two ends are provided with anti-skid tooth arrays, and when the anti-skid tooth arrays are connected with a water pipe and / or a water tank drainage port, the anti-skid tooth arrays make contact with the inner wall to form a water blocking structure to achieve sealing of the joints. And the outer diameters of the first anti-skid teeth and the third anti-skid teeth at the two ends are gradually increased towards the middle, so that connection with a water pipe or a water tank water outlet is facilitated.

An air valve storage device comprises a supporting cross beam, the two ends of the supporting cross beam are connected with fixing side plates respectively, the fixing side plates are connected with a supporting frame, and storage units are distributed on the two sides of the supporting cross beam respectively. Each storage unit comprises a protection assembly, a fixed guide rail and a sliding guide rail parallel to the fixed guide rail, one end of the fixed guide rail is connected with a guide rail fixing plate, guide bosses are arranged on the upper end face and the lower end face of the guide rail fixing plate respectively, a sliding block is arranged at one end of the sliding guide rail, and a first sliding groove is formed in one side wall of the sliding block. A first sliding groove is formed in the guide rail fixing plate in a sliding mode, second sliding grooves are formed in the top and the bottom of the first sliding groove respectively, the second sliding grooves are formed in the guide bosses in a sliding mode, a limiting screw hole communicated with the first sliding groove is formed in the top of the sliding block, and a limiting bolt is connected into the limiting screw hole in a threaded mode; the device further comprises a material grabbing mechanism which is used for discharging or taking materials from the storage unit. The air valve storage device can achieve storage of air valves, and material taking and discharging are convenient.

The invention discloses a split type stepping motor torque testing tool, and belongs to the technical field of stepping motor production equipment. The split type stepping motor torque testing process equipment comprises a testing shaft, a switching disc, a mounting disc, a bearing and a pressing sleeve. The split type stepping motor torque testing device is suitable for split type stepping motor torque testing, is especially suitable for spaceflight high-precision split type stepping motor testing, can solve the problem that existing equipment is tedious in manual disassembly and assembly, and overcomes the problems that concentricity does not reach the standard, rotor and stator interference occurs, and air gaps are not uniform in the existing testing process.

The utility model relates to the technical field of elevator car guardrails, in particular to an elevator car guardrail structure which is composed of a first guardrail body and a second guardrail body, an opening and closing mechanism capable of being rapidly disassembled and assembled is arranged between the first guardrail body and the second guardrail body, and the opening and closing mechanism is located at the joint of the middle of the top end of a car and stand columns on the two sides of an elevator shaft. The inner side of the first guardrail is provided with a supporting mechanism used for placing detection equipment and placing parts in the maintenance process. According to the scheme, firstly, the movable opening and closing mechanisms are arranged at the connecting parts of the lift car and the stand columns on the two sides of the elevator shaft, the opening and closing mechanisms can be rapidly opened and closed, so that the connecting parts are conveniently overhauled, interference of guardrails is avoided, the overhauling work is easier and faster, and the opening and closing mechanisms are convenient to operate and high in reliability; and secondly, the supporting mechanism on the inner side of the first guardrail reasonably utilizes the space above the lift car, supporting pieces capable of being stored are arranged, stable placement and use of the detection equipment are facilitated, and the convenience of overhauling work is improved.

The utility model relates to a suspension type spectrum plant lamp convenient to install, which belongs to the technical field of plant lamps and comprises a suspension type plant lamp assembly, the suspension type plant lamp assembly comprises a plant lamp shell, a light-transmitting mask arranged on the bottom surface of the plant lamp shell and an inverted U-shaped suspension hoisting plate slidably installed on the upper portion of the plant lamp shell, u-shaped mounting grooves are formed in the two ends of the plant lamp shell correspondingly, an air spring piece is mounted in each U-shaped mounting groove, the U-shaped suspension hoisting plate stretches across the two air spring pieces, and the two ends of the bottom of the U-shaped suspension hoisting plate are in longitudinal positioning sliding connection with the inner walls of the U-shaped mounting grooves correspondingly and are connected through limiting fastening assemblies; two cooling fans embedded into an inner cavity of the plant lamp shell are symmetrically arranged on the inner wall of the U-shaped hanging lifting plate, and the top end of the air spring piece elastically abuts against the inner top wall of the U-shaped hanging lifting plate.