56results about How to "Easy to operate, time-saving and labor-saving" patented technology

The invention discloses a method for changing the operation state of a mobile terminal, and a mobile terminal. The method comprises the following steps: the mobile terminal sensing a physical state change mode of itself; and according to the physical state change mode, obtaining from a preset database a corresponding mobile terminal operation state value, and correspondingly changing the current operation state of the mobile terminal. According the invention, the operation states of mobile terminals, such as a normal communication state, a muting state, a flight state, a busy line state, a call conversion state, a short message sending state, an address list scheduling state and the like, can be changed simply by changing the physical states of such mobile terminals as a mobile phone and the like, including overturning, shaking and a shacking frequency. Besides, the response is fast, and the operation is convenient, time-saving and labor-saving.

The invention relates to an LED panel lamp which comprises a frame, an LED lamp bar, positioning blocks and a light guide plate assembly, wherein the frame is formed by connection of two first frame profile bars and two second frame profile bars through four corner connection pieces, the two first frame profile bars are arranged oppositely, four corners of the light guide plate assembly are limited in clamping spaces of the four positioning blocks respectively, the four positioning blocks are fixed at the four corners of the frame, first profile bar cover plates are arranged on the first frame profile bars and mounted on the first frame profile bars in a detachable connection manner, the middles of the first profile bar cover plates extend downwards to form positioning bars, and the LED lamp bar is limited among the positioning bars and the positioning blocks; second profile bar cover plates are arranged on the second frame profile bars. The LED lamp bar is easy and convenient to replace, maintain and operate and is time-saving and labor-saving.

The invention relates to a medical laryngeal mask airway, in particular to a laryngeal mask airway sleeve capsule which can be used for clinical anesthesia or used after a tube is inserted into a trachea during emergency treatment. The medical laryngeal mask airway comprises a tube body, wherein a sleeve capsule is arranged near an opening at the front end of the tube body; a bulge is formed on the top of the sleeve capsule and is connected with an inflation catheter; one end of the inflation catheter is communicated with the sleeve capsule, and the other end of the inflation catheter is connected with a connection fixing sleeve; the connection fixing sleeve comprises an extrusion type inflation capsule and a fixing sleeve; a check valve is arranged in the fixing sleeve; the inflation catheter is also provided with a branch tube; and the branch tube is connected with a pressure detection and air leakage device. The medical laryngeal mask airway has a reasonable structure, the original air sac of the laryngeal mask airway is improved, and the inflation part of the air sac is modified in a mode that a one-way (outlet) air valve is arranged close to a catheter end and a one-way (inlet) air valve is arranged at the inflation end; and the air sac is only required to be extruded by a hand after the tube is inserted into the trachea, so that air flows into the sleeve capsule at the front end of the catheter. The pressure measurement and air leakage device is arranged at one end of the original air sac close to the catheter. The medical laryngeal mask airway is convenient to operate and is time-saving and labor-saving, so that opportunity is provided for emergency treatment of patients.

The invention belongs to the field of lighting lamps and particularly relates to a detachable LED panel lamp and a lamp bar installation structure thereof. The lamp bar installation structure comprises a frame, an LED lamp bar, positioning blocks and a light guide plate assembly, wherein the frame is formed by connection of two first frame profile bars and two second frame profile bars through four corner connection pieces, first profile bar cover plates are mounted on the first frame profile bars in a detachable connection manner, the middles of the first profile bar cover plates extend downwards to form positioning bars, the cross sections of the positioning bars of the first profile bar cover plates are in L shapes, the tail ends of the L shapes are folded to form second limit flanges, first limit flanges are further arranged in the positions, corresponding to the second limit flanges, of the first profile bar cover plates, the positioning bars of the first profile bar cover plates, the first limit flanges and the second limit flanges form an accommodating space, and the LED lamp bar is located in the accommodating space. The LED lamp bar is easy and convenient to replace and is time-saving and labor-saving.

The invention relates to the technical field of overturning type manipulators, in particular to an overturning type adjustable manipulator based on an intelligent robot and a using method of the overturning type adjustable manipulator. The overturning type adjustable manipulator comprises a manipulator body, an adsorption mechanism is detachably connected to the manipulator body, a plurality of clamping mechanisms are connected to the manipulator body, an adjusting mechanism is installed in the adsorption mechanism, a limiting mechanism is mounted in the adsorption mechanism, a connecting mechanism is mounted in the adsorption mechanism, a protection mechanism is mounted in the adsorption mechanism, and a moving mechanism is mounted in the manipulator body. The adsorption mechanism is used for conveniently and rapidly adsorbing and overturning plates, the connecting mechanism and the protection mechanism are matched for conveniently and rapidly connecting and disassembling the adsorption mechanism and the manipulator body, looseness and separation caused by air pressure change are prevented, the plates of different sizes are conveniently adsorbed and machined under the action of the adjusting mechanism and the limiting mechanism, and under the action of the moving mechanism, the manipulator body can conveniently move on the ground and can be conveniently used in different areas.

The invention provides an ultrasonic flushing instrument and relates to the field of oral medical instruments. The ultrasonic flushing instrument comprises a liquid storage tank, an ultrasonic generator, a first water pump, a second water pump, a recovery tank, a handle, a back suction cavity, a flushing syringe needle, a connecting pipe, a flushing head, a first supporting rod, a second supporting rod, a first switch, a second switch, a third switch and multiple infusion tubes. In the using process, the first switch is turned on, disinfectant liquid can be sprayed to root canals of the teeth of a patient, the third switch is turned on at the same time, sound waves generated by the ultrasonic generator can be used for loosening scraps and a smear layer on the root canal wall of the teeth during root canal preparation to facilitate flushing and cleaning through the disinfectant liquid, and the second switch can be turned on at the same time to suck back the disinfectant liquid in a tooth marrow cavity into the recovery tank in time. The ultrasonic flushing instrument is convenient to operate, saves time and labor, makes the time of a doctor beside a chair shorter, improves treatment quality by the doctor and economical efficiency, and relieves the pain of the patient.

The invention discloses a feeding device, and relates to the field of auxiliary machining. The feeding device comprises a workbench, a motor, a rotating shaft connected with the motor, and a supporting disc connected with the rotating shaft and used for a coil stock to be placed. The end, close to the coil stock, of the workbench is an inclined face, and the end, far away from the coil stock, of the workbench is horizontally arranged. A straightening mechanism, a conveying mechanism, a front clamping head, a rotation cutter and a rear clamping head are sequentially arranged at the horizontal position of the workbench. The supporting disc is of a cylindrical structure with the axis being horizontal. The circle center of the supporting disc is detachably connected with a cam shaft. The cam shaft is sequentially provided with a first cam and a second cam which are provided with a first lever and a second lever respectively. A forklift body is arranged between the first lever and the conveying mechanism and can shift the conveying mechanism to move left and right according to the movement of the first lever. The second lever is connected with the rear clamping head. The feeding device is simple in structure and convenient to operate.

The invention provides a PCR detection kit for regulator gene producing aflatoxin and a detection method thereof. The detection kit mainly comprises special amplification primers, PCR buffer liquid, deoxyl nucleoside triphosphate (dNTP) mixture and DNA polymerase; the special primers is with upstream primer sequence of 5'-CGAAAGCTCCGGGATAGCTGTACG-3', downstream primer sequence of 5'-CGTCAGACAGCCACTGGACACGG-3'. The invention has the advantages: (1) early warning: the method is a rapid and accurate microbe detection technology for the food threatened by aflatoxin, an early warning way to essentially solve the problem; (2) convenient and saving time and labour: compared with the traditional toxigenic culture technology, the invention can save time and labour, and is capable of finishing detection within three days; (3) high sensitivity and strong specificity: as the toxigenic culture technology can be heavily influenced by environment, and be easy to appear false positive, the specific gene amplification technology is adopted to ensure high diagnosis sensitivity and stronger sensitivity.

The invention relates to a mask sealing degree tester. The mask sealing degree tester is characterized by comprising a mask puncture assembly, a flow divider, a particle growth unit, a particle detection unit, an air extracting pump and a control unit, wherein the mask puncture assembly is fixedly connected with an inlet of a two-position and three-way solenoid valve and the other inlet of the two-position and three-way solenoid valve is communicated with the atmosphere; an outlet of the two-position and three-way solenoid valve is fixedly connected with the inlet at the bottom of the flow divider; the outlet at the top of the flow divider is fixedly connected with the inlet of the particle growth unit; the outlet of the particle growth unit is fixedly connected with the inlet of the particle detection unit for calculating particle number concentration; the outlet of the particle detection unit is fixedly connected with the inlet of a tee joint; the other outlet at the bottom of the flow divider is fixedly connected with the other inlet of the tee joint; the other outlet at the bottom of the flow divider is fixedly connected with the other inlet of the tee joint through an efficient filter; the outlet of the tee joint is fixedly connected with the air extracting pump through a flow meter; and the control unit is electrically connected with the two-position and three-way solenoid valve, the particle growth unit, the particle detection unit and the flow meter respectively and is used for calculating the mask sealing degree through the obtained particle number concentration. The mask sealing degree tester can be widely applied to testing on mask sealing degree.

The invention relates to an LED panel lamp which comprises a frame, an LED lamp bar, positioning blocks and a light guide plate assembly, wherein the frame is formed by connection of two first frame profile bars and two second frame profile bars through four corner connection pieces, the two first frame profile bars are arranged oppositely, four corners of the light guide plate assembly are limited in clamping spaces of the four positioning blocks respectively, the four positioning blocks are fixed at the four corners of the frame, first profile bar cover plates are arranged on the first frame profile bars and mounted on the first frame profile bars in a detachable connection manner, the middles of the first profile bar cover plates extend downwards to form positioning bars, and the LED lamp bar is limited among the positioning bars and the positioning blocks; second profile bar cover plates are arranged on the second frame profile bars. The LED lamp bar is easy and convenient to replace, maintain and operate and is time-saving and labor-saving.

The invention discloses a prefabricated bridge panel expansion joint connecting member, and belongs to the technical field of expansion joint connecting members. The prefabricated bridge panel expansion joint connecting member comprises a plurality of sub-members arrangedin the length direction of expansion joints, vertical supporting blocks are arranged in acontaining cavity formed by oppositelyarranging the opening ends of a first U-shaped fastener and a second U-shaped fastener of the sub-members, buffer mechanismsare symmetrically arranged on the left sidesand the right sides of the vertical supporting blocks,elastic filler layersarearranged between two vertically adjacent profiled steel sheet assemblies as well asbetween the profiled steel sheet assemblies and the first U-shaped fastener as well as betweenthe profiled steel sheet assemblies and the second U-shaped fastener,L-shaped through grooves are formed in the overlapping portion of the first U-shaped fastener and the secondU-shaped fastener, fastening bolts are arranged in the L-shaped through grooves, vertical through holes are formed in the vertical supporting blocks, screwed pipes are pre-embedded at the bottoms ofthe expansion joints, and the lower ends of the fastening bolts penetrate through the L-shaped through grooves and the vertical through holes to be connected with the screwed pipes. The prefabricatedbridge panel expansion joint connecting member has the characteristics of being high in toughness, high incapacity forresistingexpansion joint deformation, and capable of realizingtimesaving and laborsaving in installation and maintenance.

The invention relates to an intelligent type overvoltage protector, and belongs to the technical field of electrical equipment. The intelligent type overvoltage protector comprises an overvoltage protector body, a protective casing is arranged outside the overvoltage protector body, the overvoltage protector body is fixedly mounted in an inner cavity of the protective casing, and a cover is arranged in the end, far from the overvoltage protector body, of the protective casing, and is hinged and fixed to the protective casing via a hinge; a soleplate on the protective cover is fixedly mounted on a connecting seat on the wall in a clamping manner instead of a bolt fixation manner, so that the overvoltage protector body is more convenient to mount and dismount; and the soleplate can be fixedly mounted on the connecting seat by rotating a knob on the connecting seat, so that a maintenance staff can install and replace the overvoltage protector body without a tool. Operation is convenient,time-saving and labor-saving.

The invention provides a multifunctional power recovery vehicle. The multifunctional power recovery vehicle comprises a crank arm type bracket, a toolkit and a baggage carrier, which are arranged on a vehicle body, wherein the crank arm type bracket comprises a transverse base and a longitudinal support which is in rotary connection with the transverse base; a frame body is arranged at the periphery of the toolkit; the multifunctional power recovery vehicle further comprises an insulating ladder fixing frame with a special part and a lock body which is arranged on the end face of the outer side of the toolkit; the crank arm type bracket is connected with the insulating ladder fixing frame with the special part; the lock body comprises an outer frame; shaft holes are formed in relative positions at two side edges of the outer frame; a rotary shaft stretches into the shaft holes; the rotary shaft is connected and provided with a handle; the inner side of the handle is connected and provided with a spring buckle; a clamping groove is formed in the position, corresponding to the spring buckle, on the frame body. Furthermore, the power supply reliability and a high-quality service level of a distribution network are improved; doing rush repairs at night , getting assistance from a recovery commanding center and climbing to repair in high can be effectively realized; crank arm illumination and monitoring equipment can be automatically hoisted without obstacles; the multifunctional power recovery vehicle has the advantages of good locking safety, simple and easy operation, time saving and labor saving, safety and high efficiency.

The invention discloses a feeding mechanism and relates to the field of auxiliary machining. The feeding mechanism comprises a supporting frame and further comprises a motor and a feeding screw connected with the motor. A straightening mechanism, a front chuck, a rotary knife and a rear chuck are sequentially arranged on the feeding screw. A sliding plate is arranged on the feeding screw and slidably connected to the feeding screw. The straightening mechanism and the front chuck are fixedly connected to the sliding plate. The supporting frame comprises a supporting tray, a telescopic supporting rod and a supporting base, wherein the supporting tray is used for containing roll materials, the telescopic supporting rod is connected with the supporting tray, and the supporting base is connected with the supporting rod. By the adoption of the feeding mechanism, the labor intensity of carrying the roll materials during feeding can be relieved.

The invention discloses a vibratory separation test bed for pedicels of wine grapes. The vibratory separation test bed comprises a frame, a vibration mechanism, a data collector, a sensor, a fixing ring and an air pump. The vibration mechanism drives grape vines to vibrate, the fixing ring comprises a first semi-ring, a second semi-ring, air bags, a locking mechanism and a sliding part, the first semi-ring and the second semi-ring are each internally provided with one air bag, and the air pump is installed on the frame and inflates the air bags; an arc-shaped groove in a circumferential direction is formed in the outer arc surface of the first semi-ring, the sliding part comprises an arc-shaped plate, a transverse plate and a vertical plate, the two ends of the transverse plate are connected with the arc-shaped plate and the vertical plate respectively, the transverse plate penetrates through the arc-shaped groove, the vertical plate is used for installing the sensor, and the sensor is connected with the data collector. According to the vibratory separation test bed for the pedicels of the wine grapes, the sensor is installed by the fixing ring with the air bags, the sensor can be mounted and dismounted through inflation and deflation of the air bag, operation is convenient, time and labor are saved, the sensor can adapt to the grape vines in any shape, and mechanical damage to the grape vines is avoided.

The present invention discloses an intelligent gas meter sampling device. The intelligent gas meter sampling device comprises a machine shell, a shell cover is fixedly connected to one side of the machine shell, a protection plate is fixedly connected to the outer side of the machine shell, a mounting groove is formed in the top end of the shell cover, a fixing plate is fixedly connected to the inner wall of the mounting groove, and first fixing blocks are fixedly connected to the two sides of the inner wall of the machine shell. By arranging the pull rod, during mounting, the shell cover is placed at the top end of the machine shell, so that the second fixing block is inserted into the inner wall of the fixing groove, the sealing strip is tightly attached to the inner wall of the sealing groove by forcibly pressing, and at the moment, the first rack makes contact with the second rack under the action of the first spring to fix the second fixing block, so that the machine shelland the shell cover are effectively fixed and sealed. When a worker needs to overhaul, the pull rod is pulled, the pull rod drives the first rack to be separated from the second rack, then the machine shell and the shell cover can be separated, operation is convenient, and time and labor are saved.

The invention provides a clothes processing equipment, which comprises a box body, a drawer, a cover plate component and a supporting element, wherein the drawer is arranged on the bottom of the box body; the cover plate component is arranged above the drawer; one end of the supporting element is connected with the drawer; the other end of the supporting element is connected with the cover plate component; the supporting element can extend or compress along the height direction of the box body to regulate a relative distance between the cover plate component and the drawer. According to the clothes processing equipment, the relative distance between the cover plate component and the drawer is regulated through the supporting element so as to bring convenience to carry out subsequent processing on clothes through the cover plate component, so that the space utilization ratio of the clothes processing equipment and the function diversification of the clothes processing equipment are improved, and therefore, the market competitiveness of the clothes processing equipment is further enhanced.

The invention discloses a recovering device for metal powder. The recovering device comprises a powder suction unit, a powder screening unit and a powder drying unit; the powder suction unit is used for collecting the metal powder and comprises a powder feeding part and a power containing part; the powder screening unit and the powder containing part of the powder suction unit are arranged integrally and communicate with each other; the powder drying unit and the powder screening unit are arranged integrally and communicate with each other; the powder drying unit is used for drying and recovering the metal powder; and the powder suction unit, the powder screening unit and the powder drying unit form a recovering channel for the metal powder sequentially. The powder suction unit of the recovering device communicates with the powder screening unit, meanwhile, the powder screening unit communicates with the powder drying unit, and the powder suction unit, the powder screening unit and thepowder drying unit form the recovering channel for the metal powder sequentially, so that collection, filtration and drying of the metal powder can be completed in the same device, back-and-forth circulation of the metal powder is avoided, the recovering device is easy and convenient to operate, the whole process is time-saving and labor-saving, and the recovering efficiency is high.

The invention relates to a simply-equipped rapid mud flat enclosure mesh arrangement method. The method comprises a first step of connecting a water inlet of a water pump (3) with a water source (1) through a water inlet pipe (2), a second step of connecting a water outlet of the water pump (3) with a high-pressure water gun (5) through a water outlet pipe (4), a third step of vertically placing the high-pressure water gun (5), using a water injection nozzle of the high-pressure water gun (5) for carrying out water spray to a mud flat (8), a fourth step of driving stakes (7) into holes formed in the position, where water is sprayed, of the mud flat (8), wherein the position is located on the high-pressure water gun (5), and a fifth step of surrounding a surrounding mesh (6) on the upper portions, exposing out of the mud flat (8), of the stakes (7). The simply-equipped rapid mud flat enclosure mesh arrangement method has the advantages that water drawing is carried out on part of sea water of the mud flat through an engine, wherein the sea water of the mud flat does not retreat, the high-pressure water gun is connected, bottom materials of the flat mud are washed, holes are formed, the stakes are arranged, rapid and high-efficient mesh surrounding work is achieved, due to the fact that existing simply-equipped tools and natural conditions are used, cost is low, operation is convenient, time and labor are saved, and practical popularization performance is strong.

The invention relates to a medical laryngeal mask airway, in particular to a laryngeal mask airway sleeve capsule which can be used for clinical anesthesia or used after a tube is inserted into a trachea during emergency treatment. The medical laryngeal mask airway comprises a tube body, wherein a sleeve capsule is arranged near an opening at the front end of the tube body; a bulge is formed on the top of the sleeve capsule and is connected with an inflation catheter; one end of the inflation catheter is communicated with the sleeve capsule, and the other end of the inflation catheter is connected with a connection fixing sleeve; the connection fixing sleeve comprises an extrusion type inflation capsule and a fixing sleeve; a check valve is arranged in the fixing sleeve; the inflation catheter is also provided with a branch tube; and the branch tube is connected with a pressure detection and air leakage device. The medical laryngeal mask airway has a reasonable structure, the original air sac of the laryngeal mask airway is improved, and the inflation part of the air sac is modified in a mode that a one-way (outlet) air valve is arranged close to a catheter end and a one-way (inlet) air valve is arranged at the inflation end; and the air sac is only required to be extruded by a hand after the tube is inserted into the trachea, so that air flows into the sleeve capsule at the front end of the catheter. The pressure measurement and air leakage device is arranged at one end of the original air sac close to the catheter. The medical laryngeal mask airway is convenient to operate and is time-saving and labor-saving, so that opportunity is provided for emergency treatment of patients.

The invention discloses a distillation condensing refluxing device. A refluxing condenser comprises a distillation port (10), a distillation pipe (8), a condenser (1), a receiver (6), a receiver upper valve (5), a receiver lower valve (7) and a refluxing pipe (12). The condenser is internally provided with a snakelike condensing pipe (3), the lower end of the condensing pipe is a condensate water inlet (4) and the upper end is a condensate water outlet (2). The distillation pipe (8) is a right-angled elbow pipe, the lower end of the distillation pipe is connected with the distillation port and the upper end is connected with the lower end of the condenser, a distillation pipe valve (9) is arranged at the middle of the distillation pipe, and a demister (13) is arranged behind the valve. The refluxing pipe (12) is a straight pipe, the lower end of the refluxing pipe (12) is connected with the distillation pipe below the distillation pipe valve (9), and the upper end is connected with the straight pipe at the lower end of the condenser and is located below the distillation elbow pipe and above the receiver upper valve (5). The distillation condensing refluxing device has the advantages that the structure is simple, the distillation gas does not affect the refluxing of refluxing liquid, and the practicability is high.

The invention discloses a slab mop dewatering cleaning device. The device includes a mop and a mop barrel matched with the mop; the mop includes a mop rod, a mop head and a wiping object; the mop barrel includes a barrel body, a dewatering port, a dewatering piece, a dewatering cavity and a water supply device. The dewatering port is used for being inserted by the mop head; the dewatering piece isused for extruding the mop head after the mop head is inserted into the dewatering port; the dewatering cavity is formed in the barrel body, and the mop head can move up and down in the dewatering cavity; the water supply device is used for conveying water in the barrel body to the dewatering cavity and consists of a water inlet channel and a switch component used for opening or blocking the water inlet channel. By forming the dewatering cavity in the barrel body and arranging the water supply device in the barrel body, the mop moves up and down in the dewatering cavity, and then cleaning anddewatering of the mop can be achieved; the operation is simple and convenient, and time and labor are saved. Secondly, the barrel body can be arranged as a single barrel, and the size of the barrel body is small.

The invention discloses a high-voltage measuring device and a using method thereof. The high-voltage measuring device comprises a storage box, one end of the outer side wall of the storage box is hinged with a box cover, the inner side wall of the storage box is symmetrically connected with rotating shafts, one end of each rotating shaft extends to the outside of the storage box, and the shaft surface of each rotating shaft is fixedly connected with a cable storage mechanism. A cleaning mechanism is arranged on the side, close to the cable storage mechanism, of the inner side wall of the storage box. Through the arrangement of the cable storage mechanism, a cable can be quickly stored, operation is convenient, time and labor are saved, meanwhile, when the cable is wound and stored, the cable is clamped and fixed through a sponge cushion block and a sponge clamping block so that the surface of the cable can be wiped and cleaned while the cable is stored, therefore, the tidiness of the cable is improved, and the practicability of the device is further improved.

The invention discloses a glue application gun of compartment covers. The glue application gun comprises a gun body, a sliding assembly capable of sliding along surfaces of the compartment covers is arranged in the front of the gun body, a gun nozzle is detachably connected to the front end of the gun body, and a guide assembly clamped in butt joint grooves of two compartment covers for realizing the guide effect is arranged under the gun nozzle. The invention further discloses a glue application method based on the glue application gun of the compartment covers. The glue application method includes the steps of S01, placing the guide assembly on the gun nozzle in the butt joint grooves of two compartment covers and supporting the sliding assembly on the surfaces of the compartment covers at the beginning; and S02, carrying out glue application operation on the butt joint grooves between the compartment covers when the gun body slides along the butt joint grooves. The glue application gun and the glue application method have the advantages that the glue application efficiency is high and the quality of glue strips is high.

The invention discloses a high-pressure jet-type underwater net washing machine, which comprises: a high-pressure chamber with an inclined high-pressure nozzle and a cavity inside, a frame for retaining, and a high-pressure conduit shaft with a water flow channel inside, wherein, The high-pressure catheter shaft is "T"-shaped, its radial end is connected to the high-pressure chamber, and its axial end is rotatably connected to the center of the frame; the water flow channel inside the high-pressure catheter shaft communicates with the cavity of the high-pressure chamber. The high-pressure water in the high-pressure water pipe flows through the water flow channel inside the high-pressure conduit shaft, enters the high-pressure chamber, and is sprayed out from the high-pressure nozzle installed obliquely on the high-pressure chamber. The reaction force of the high-pressure water jet makes the high-pressure chamber rotate and drives the nozzle on it to rotate. , so as to spray out the rotating high-pressure water flow, increase the cleaning area of ​​the net clothes, improve the cleaning efficiency, and the operation is simple and safe.

The invention discloses a prefabricated bridge panel expansion joint connecting member, and belongs to the technical field of expansion joint connecting members. The prefabricated bridge panel expansion joint connecting member comprises a plurality of sub-members arrangedin the length direction of expansion joints, vertical supporting blocks are arranged in acontaining cavity formed by oppositelyarranging the opening ends of a first U-shaped fastener and a second U-shaped fastener of the sub-members, buffer mechanismsare symmetrically arranged on the left sidesand the right sides of the vertical supporting blocks,elastic filler layersarearranged between two vertically adjacent profiled steel sheet assemblies as well asbetween the profiled steel sheet assemblies and the first U-shaped fastener as well as betweenthe profiled steel sheet assemblies and the second U-shaped fastener,L-shaped through grooves are formed in the overlapping portion of the first U-shaped fastener and the secondU-shaped fastener, fastening bolts are arranged in the L-shaped through grooves, vertical through holes are formed in the vertical supporting blocks, screwed pipes are pre-embedded at the bottoms ofthe expansion joints, and the lower ends of the fastening bolts penetrate through the L-shaped through grooves and the vertical through holes to be connected with the screwed pipes. The prefabricatedbridge panel expansion joint connecting member has the characteristics of being high in toughness, high incapacity forresistingexpansion joint deformation, and capable of realizingtimesaving and laborsaving in installation and maintenance.

The invention discloses a high-precision instrument for determining the paraffin content of asphalt. The instrument comprises a body, a control panel, a distillation work room, a cooling work room, an automatic constant-temperature cooling device and an anti-frosting device, wherein the control panel is arranged on the top of the body, the distillation work room is arranged on the upper part of the body, the cooling work room is arranged on the lower part of the body, the automatic constant-temperature cooling device is arranged at the bottom of the cooling work room, and the anti-frosting device is arranged in the cooling work room. In the mode, the instrument is provided with the automatic constant-temperature cooling device and the anti-frosting device, so that the instrument has the advantages of rapidity in cooling, high control accuracy, simplicity and convenience in operation, time-saving and labor-saving properties and has an anti-frosting function.

The invention discloses a helmet type scalp needle twisting instrument and a use method thereof, relating to the field of medical instruments. The helmet type scalp needle twisting instrument includesa helmet module, a seat module and control box, and the helmet module is mainly used for fixing the twisting pen for the patient, so as to accommodate acupuncture needles inserted at different angles, so that twist needle action is continuously provided to the patient; the seat module provides a comfortable treatment environment for the patient, the helmet module can be secured to different seats, good universality, the control box is the control center of the whole device, the clamping of the twisting needle pen can be controlled separately, securing and locking of the helmet module, and cancontrol the frequency, intensity and mode of the twisting needle of each twisting needle pen. The invention places the helmet module on the head of a patient which sits on the seat module, and can provide the patient with a treatment scheme of twisting multiple needles continuously at the same time. The helmet type scalp needle twisting instrument is convenient and quick in operation, reduces thelabor intensity of the doctor and improves the treatment efficiency.

The invention provides a winding type dust removal screen window. The winding type dust removal screen window comprises a main frame and a roll dust removal net. An upper scroll and a lower scroll are correspondingly arranged on the upper and lower sides of the frame. The shaft ends of the upper scroll and the lower scroll are correspondingly arranged in an upper bracket and a lower bracket in a penetrating manner to form rotational connection. The extending ends, going out of the lower bracket, of the lower scroll are each sleeved with a rotating wheel. The front side face of the main frame is a screen window face, and the rear side face is an installation face which is fixed to a window frame. A pressing frame is arranged on the screen window face, the pressing frame and the upper bracket are connected through a hanging assembly, and the pressing frame and the lower bracket are fixedly connected by a lower connecting rod. The main frame is equipped with a dust removal net channel. The periphery of the main frame and the periphery of the pressing frame are closely sealed together, and the periphery of the main frame and the periphery of the window frame are closely sealed together. The roll dust removal net includes a piece of rectangular mesh fabric. The two ends of the mesh fabric are each wound to form a roll. The middle of the mesh fabric is arranged in the dust removal net channel in a penetrating manner, so that the roll at one end sleeves the upper scroll, and the roll at the other end sleeves the lower scroll.