789results about How to "Prevent prolapse" patented technology

The present invention belongs to the field of drones, and provides a drone testing system, including a testing device and a processing module, wherein the testing device includes a test bench, on which a torque testing module is installed, and the torque testing module is used to test the torque when the drone turns, and a tension testing module is installed on the torque testing module, and the tension testing module is used to test the vertical tension and tilt tension of the drone. The present invention sets a tension sensor, an angle sensor, a winding drum, a pull rope, and a second motor, and when testing the tilt tension of the drone, the drone is tilted to fly, and the drone tilts and pulls the pull rope, the tension sensor can measure the vertical tension of the pull rope, the angle sensor can detect the tilt angle of the pull rope, and then the tension of the pull rope and its horizontal tension component can be calculated, and the system can comprehensively and accurately test the tension parameters of the drone when it is tilted.

The invention discloses a protective induction cable convenient to connect, and relates to the technical field of cables, a rubber block is embedded in a fixing groove, a buffer hole channel is formed in the rubber block, an assembling groove is formed in the top of the rubber block, the outer side of an outer conductor is wrapped with a silica gel pad, an outer layer hose is embedded in the assembling groove, and a semicircular ring piece is embedded in a supporting groove. The outer conductor and the inner conductor are better protected under the multi-absorption and multi-buffering effects of the silica gel pad, the outer-layer hose and the rubber block and the supporting arc sheets and the elastic rings and the supporting arc sheets, and under the supporting effect of the rubber block, the outer conductor and the inner conductor are not prone to falling off due to the fact that the outer-layer hose and the rubber block are evenly welded to the outer side of the outer-layer hose and the supporting arc sheets are evenly welded to the outer side of the outer-layer hose, and the supporting arc sheets are welded to the other ends of the three adjacent elastic rings. The groove hole is prevented from being deformed, the cable can operate normally, the silica gel pad can be tightened through the fixing leather strip, when an insulating layer on the outer side of the cable is damaged, the silica gel pad can tightly wrap the outer side of the outer conductor, and the outer conductor is better protected.

The invention relates to a double-unlocking lock cylinder which comprises a lock shell, a left lock container, a right lock container and a shifting wheel, and is mainly characterized in that a clutch transmission structure of the double-unlocking lock cylinder comprises a first clutch shaft and a second clutch shaft which are coaxially riveted together and can relatively stretch and retract, and shaft sleeves are arranged on the first clutch shaft and the second clutch shaft in a sleeving mode; the first clutch shaft and the second clutch shaft are provided with shaft discs which are of the same structure and limit the shaft sleeves to disengage, a first spring is arranged between the first clutch shaft and the shaft sleeves on the same side, a second spring is arranged between the second clutch shaft and the shaft sleeves on the same side, and a third spring is arranged between the two shaft sleeves. When a key is inserted into any end of the left lock cylinder or the right lock cylinder or two ends of the key are inserted into the left lock cylinder and the right lock cylinder at the same time, the shaft sleeves can move in a reciprocating mode relative to the shifting wheel, and therefore the left lock cylinder and the right lock cylinder can be locked and unlocked. At the moment, the dial wheel can be driven by the circumferential limiting structure to rotate so as to unlock.

The utility model discloses a testing machine for reproducing the white peeling phenomenon of a bearing, which comprises a testing stand, a belt pulley bearing support is arranged at the upper end of the testing stand, a plurality of bearing seats for placing belt pulley bearings are arranged on the belt pulley bearing support, each bearing seat is provided with a belt pulley bearing, and the belt pulley bearing is arranged on the belt pulley bearing support. A driving motor used for driving a belt pulley is arranged at the lower end of the test bed, a driving wheel is arranged at the position, corresponding to a belt pulley bearing, of one end of the driving motor, a belt is in transmission connection between the driving wheel and the belt pulley bearing, the test bed is provided with a plurality of supporting table legs, and elastic pieces are arranged between the supporting table legs and the test bed. The testing machine can simulate the testing environment of belt pulley bearing speed change and vibration testing, the simulation effect is good, and the structure is simple.

The invention provides an outgoing line sheath, a motor and a power line outgoing line assembling method thereof, and an air conditioner, the outgoing line sheath comprises an outer sleeve body, the outer sleeve body is provided with a line outlet penetrating through two opposite end faces of the outer sleeve body, and the outgoing line sheath also comprises a first line clamping assembly and a second line clamping assembly which are arranged along the line outgoing direction perpendicular to the line outlet and are opposite to each other about the line outgoing direction; the first wire clamping assembly and the second wire clamping assembly can be driven to move close to each other so as to clamp a cable which is located between the first wire clamping assembly and the second wire clamping assembly and passes through the wire outlet. The device can be compatible with reliable clamping and fixing of various cables of different specifications, the phenomenon that the cables are loosened or crushed due to the fact that the threading holes of the outlet sheath are not matched with the specifications of the cables in the prior art is effectively overcome, multiple sets of molds do not need to be repeatedly opened, the mold opening cost is saved, the general use degree of materials is improved, and the production efficiency is improved. And the management work of material coding is simplified.

The invention discloses a vertical shaft cable laying device and method, and solves the technical problems that the labor cost and the time cost are increased and large potential safety hazards exist due to the fact that the cable laying speed is low and multiple persons need to cooperate in the prior art. Wherein the vertical shaft laying device comprises a guide device, a pay-off rack and a buffer device; the guide device is arranged at the mouth of the vertical shaft; the pay-off rack and the buffer device are both arranged on the plane corresponding to the mouth of the vertical shaft, and the buffer device is located between the pay-off rack and the guide device. The buffering device and the guiding device in the vertical shaft cable laying device can be matched to convey the cable into the vertical shaft, the cable is tensioned through the buffering device, the lowering speed is controlled, laying of the cable is easily completed, the number of workers needed in the whole laying process is reduced, and the laying efficiency is improved. And the condition that the cable is released from the pay-off rack due to too high cable releasing speed is avoided, so that the laying period of the cable is ensured, and the labor cost, the time cost and the potential safety hazard during construction are reduced.

The invention belongs to the technical field of automobile suspensions, and particularly relates to an independent type double-cavity air spring which comprises a base, an air bag and a piston, and the base, the air bag and the piston define a closed air containing cavity. A column cavity with a downward opening is formed in the piston, a plunger in axial sealing sliding fit with the inner side wall of the piston is arranged in the column cavity, the plunger divides the gas containing cavity into a main gas chamber and an auxiliary gas chamber which are isolated from each other, the main gas chamber is located on the lower side of the plunger, and the auxiliary gas chamber is located on the upper side of the plunger. The piston is provided with a first inflation inlet communicated with the main air chamber and a second inflation inlet communicated with the auxiliary air chamber. The upper end of the push rod is connected to the plunger, and the lower end of the push rod is connected to the base; the axis of the push rod and the axis of the piston inner column cavity are arranged in the same direction. The rigidity adjusting range of the air spring is expanded, the high-pressure air in the auxiliary air chamber provides buffering limiting for compression movement of the air spring, thrust is provided for reset movement of the air spring and a vehicle body to enable the vehicle body to reset quickly, and the driving comfort of the vehicle is improved.

The invention provides a battery monomer, a battery and a power utilization device, and belongs to the technical field of batteries. Wherein the battery monomer comprises a shell, a pole column body and a pole column cover plate, the shell defines a containing cavity, the pole column body is arranged on the shell, a communication channel communicated with the containing cavity is formed in the pole column body, the pole column cover plate is arranged on the pole column body, and a liquid injection hole communicated with the communication channel is formed in the pole column cover plate. According to the battery monomer, the area of the pole structure is increased under the condition that the size of the shell is not changed, so that the current passing efficiency of the battery monomer is improved, the processing and forming of the liquid injection hole are facilitated, the structure and processing of the shell are simplified, in addition, in the production and use processes, the possibility of splashing and overflowing of electrolyte is reduced, and the service life of the battery monomer is prolonged. Therefore, the reliability and the manufacturability of the battery monomer are improved.

The invention provides a support structure, a battery pack and a vehicle. The support structure comprises a base, at least two clamping parts are arranged on one side, in the first direction, of the base, the clamping parts are arranged at intervals in the second direction, and a clamping space is formed between every two adjacent clamping parts; in the first direction, a limiting part is arranged at the end, away from the base, of the clamping part, and in the second direction, at least one part of the limiting part protrudes out of the surface of the side, facing the adjacent clamping part, of the clamping part; in the first direction, the end part, far away from the base, of the clamping part can generate elastic deformation in the second direction so as to be far away from each other; an included angle is formed between the first direction and the second direction. According to the support structure, the battery pack and the vehicle provided by the embodiment of the invention, the maintenance and replacement process of the connecting piece can be effectively simplified, and the maintenance and replacement cost of the connecting piece is reduced.

The present disclosure relates to the field of transportation technology, and in particular to an unmanned tractor. The unmanned tractor is used to tow a trailer, and includes a tractor body and a traction device. The traction device includes a lifting mechanism and a traction mechanism arranged on the lifting mechanism. The traction mechanism includes a slider slidably connected to the lifting mechanism, an electromagnetic lock fixedly connected to the slider, a traction ring fixedly connected to the electromagnetic lock, and a traction buckle installed on the traction ring; the electromagnetic lock has a retractable lock tongue, which is used to limit the free end of the traction buckle when the lock tongue is extended to limit the downward rotation of the traction buckle; the traction ring has an inner area for the trailer ring to pass through, the trailer ring can push the traction buckle upward, and the free end of the traction buckle is sleeved on the traction buckle. The unmanned tractor disclosed in the present disclosure can realize the automatic traction function of the unmanned tractor on the trailer without modifying the existing trailer, and the unmanned tractor is suitable for docking with mops in different states.

The invention discloses a full-size wind tunnel high-load blade, which relates to the technical field of wind tunnel equipment and comprises a metal blade root, a hollow main beam and a blade body, a main beam connecting section is arranged at one end of the metal blade root, and the side wall of the main beam connecting section is a first conical side wall surface; the large opening end of the first conical side wall face is closer to the end, provided with the main beam connecting section, of the metal blade root than the small opening end of the first conical side wall face. The hollow main beam is formed by wrapping a carbon fiber cloth layer; a blade root connecting section is arranged at one end of the hollow main beam and fixedly arranged on the main beam connecting section in a sleeving mode. The inner side wall of the blade root connecting section is a second conical side wall face, and the second conical side wall face is attached to the first conical side wall face. The blade body is made of a carbon fiber material; and the blade body is fixedly arranged on the hollow main beam. The lightweight design degree of the blade is improved, and the lightweight effect of the blade structure is achieved.

The utility model belongs to the technical field of early warning mechanisms, and particularly relates to an electric leakage early warning structure of a looped network switch cabinet, which comprises a looped network cabinet body, and a direct current power supply, a current sensor, a control assembly and an alarm mechanism are mounted at the top in the looped network cabinet body in front of an electrical mounting guide rail. One end of the electromagnetic valve penetrates through the top of the ring main unit body and is sleeved with a balloon, the other end of the electromagnetic valve is in threaded connection with a connecting piece, the connecting piece comprises a reducer pipe, the reducer pipe is in threaded connection with a miniature gas storage cylinder, a connecting frame is arranged on the inner side of the reducer pipe, and a contact pin arranged on the connecting frame penetrates through the top of the miniature gas storage cylinder in an inserted mode. An air channel is formed in the contact pin in a penetrating mode, and a pressure sensor is installed on the side face of the reducer pipe. After electric leakage is sensed, the electromagnetic valve is opened to enable the pressure gas in the miniature gas storage bottle to enter the balloon, and a worker can quickly observe the balloon floating on the top of the ring main unit body so as to determine the electric leakage state of the ring main unit body.

The invention discloses a nasopharynx ventilation catheter for a multifunctional breathing machine. The nasopharynx ventilation catheter comprises a flexible catheter body, an anti-bending supporting part, a dosing assembly, a sputum suction assembly, a monitoring assembly and an air bag mechanism. The air outlet end of the flexible conduit is provided with an antibacterial conduit head, and the air inlet end is provided with a connecting assembly; the antibacterial catheter head is provided with a hole channel assembly and a medicine feeding opening, and the flexible catheter is provided with a suction opening. The anti-bending supporting part is mounted on the inner wall of the flexible conduit; one end of the dosing assembly is communicated with the dosing port; one end of the sputum suction assembly is communicated with the suction port; the detection end of the monitoring assembly is located in the inner cavity of the flexible catheter and close to the duct assembly, and the monitoring assembly is used for monitoring the concentration of carbon dioxide in the oral and nasal cavity; the air bag mechanism comprises a first air bag, a second air bag and two air bag air supply assemblies. The device has the functions of drug delivery, sputum suction, carbon dioxide concentration monitoring and the like, meanwhile, the nasal mucosa can be free of damage or obviously relieved, the device can be conveniently inserted into the nasal cavity, the fixing effect is good, and the ventilation effect is good.

The invention discloses a high-yield laminated mold, and relates to the technical field of molds, the high-yield laminated mold comprises a middle mold base, external mold bases are slidably connected to the two sides of the middle mold base, mold cavities are formed in the two sides of the middle mold base, and hot runners communicating with the mold cavities are installed in the middle mold base; a cavity is formed in the middle mold base, an ejector pin penetrating through the middle mold base and extending into the cavity is slidably connected into the middle mold base, a boss is fixedly installed in the ejector pin, a positioning column used for being connected with a nut in a sleeved mode is fixedly connected to the boss, and the sealing unit comprises a sleeve and a piston plate which are slidably connected into the positioning column. The larger the internal pressure of the first sealing ring is, the tighter the first sealing ring and the inner wall of the nut is, plastic in a molten state is prevented from entering threads of the nut under the pressure, after a material is cooled and shaped, the roller and the first sealing ring can automatically restore to the original shape, the force needed by demolding ejection of a product is reduced, and the ejector pin can eject the product perfectly and conveniently.

The utility model discloses a wall-hanging type air conditioner panel structure capable of preventing a panel loose-leaf rotating shaft from falling off, which comprises a middle frame, a panel and end covers arranged on two sides of the middle frame, loose-leaf rocker arms are respectively fixed on the inner sides of two ends of the panel, triangular convex hulls are fixed on the inner sides of the corners of the loose-leaf rocker arms, rotating shafts are fixed on the inner sides of the outer end parts of the loose-leaf rocker arms, and the rotating shafts are fixed on the inner sides of the rotating shafts. Rotating shaft holes matched with the rotating shafts and elastic convex hulls matched with the triangular convex hulls are formed in the two sides of the middle frame, and retaining ribs are fixed to the positions, where the rotating shaft holes are located, of the inner sides of the end covers. The panel, the middle frame and the end cover are structurally matched with one another, so that the panel can be smoothly assembled on the middle frame, the outer side of the loose-leaf rocker arm can be propped through the retaining rib when the panel is opened, and the rotating shaft is prevented from being separated from the middle frame.

The invention discloses wearable vital sign monitoring and early warning equipment and application, and belongs to the technical field of vital sign monitoring. A wearable vital sign monitoring and early warning device comprises an electrocardiogram monitoring garment, the electrocardiogram monitoring garment comprises cuffs and a neckline, radar arm bands are arranged on the outer sides of the cuffs, an electrocardiogram monitor is arranged on one side of the lower portion of the neckline, the electrocardiogram monitor is combined with the electrocardiogram monitoring garment through a mounting hole groove, and the mounting hole groove is communicated with the mounting hole groove. And a colloid magnetic ring is arranged on the outer surface of the mounting hole groove. In order to solve the problems that most of existing portable vital sign monitoring equipment is of a wrist-wearing structure, the detection precision of the wrist-wearing structure is limited, and the wrist-wearing structure is influenced by the wearing environment, electrocardiogram monitoring clothes adopt a close-fitting wearing design, an electrocardiogram monitor in a chest area needs to be in direct contact with the skin when a user wears the electrocardiogram monitoring clothes, and the electrocardiogram monitoring clothes cannot be worn by the user. In the daily life process, the pulse, the blood pressure concentration and other numerical values can be monitored in real time through the electrocardiogram monitor.

The utility model relates to a blowout preventer flashboard rubber core dismounting device, and belongs to the technical field of oil field equipment maintenance. The blowout preventer flashboard rubber core dismounting device comprises a drawing hook, a drawing mechanism and a supporting frame, wherein the drawing mechanism is used for applying tensile force to the drawing hook, the supporting frame is used for being supported on the sealing end face of a flashboard body and providing tensile reaction force for the drawing mechanism when the drawing mechanism applies the tensile force to the drawing hook, and a rubber core avoiding space is formed in the supporting frame. The drawing hook comprises a hook arm connected with the drawing mechanism and a wedge-shaped hook tip which is arranged at one end of the hook arm and used for being wedged into a gap between the gate plate body and the rubber core and hooking the rubber core. The number of the drawing hooks is at least two, and the drawing hooks are used for hooking the rubber core from the two ends of the rubber core installation groove in the flashboard body respectively when the blowout preventer flashboard rubber core dismounting device is used. In the working process of the blowout preventer flashboard rubber core disassembling device, only the flashboard body needs to provide a supporting face, and the blowout preventer flashboard rubber core disassembling device is suitable for separation of various types of blowout preventer flashboard bodies and rubber cores.

The invention discloses a riveting device for bus duct production, and relates to the technical field of bus duct product.The riveting device for bus duct production is characterized in that a protective cover is fixedly connected to the upper portion of a workbench, a riveting mechanism is arranged below the protective cover, a moving mechanism is arranged at the lower end of the workbench, and supporting columns are fixedly connected to the four corners of the lower end of the workbench; a supporting mechanism is arranged on the outer wall of the supporting column. According to the riveting device for bus duct production, by arranging the riveting mechanism, when a material limiting block is extruded, a connecting block is driven to move downwards, a convex block on the outer wall of the connecting block slides along a wave-shaped groove, the material limiting block rotates, the concave position of the material limiting block is right opposite to the lower portion of an outlet of a discharging box, and a rivet can fall into a first shell; and the situation that the fingers of a worker are injured by the device due to the fact that the worker directly makes contact with the clamping device of the rivet, the wound is infected, and the body health of the worker is affected is avoided.

The utility model relates to a photovoltaic tile fixing structure, a photovoltaic tile assembly and a roof photovoltaic system. The photovoltaic tile fixing structure comprises a fixing piece used for being installed on an attachment surface; the assembly part is connected with one end of the fixing part, a containing cavity is formed in the assembly part, and a frame of the photovoltaic tile is embedded in the containing cavity; and the anti-falling mechanism is arranged on the fixing piece and / or the cavity wall of the accommodating cavity, and the anti-falling mechanism is used for preventing the frame from falling off. Therefore, on one hand, the photovoltaic tile fixing structure is relatively simple in structure, and when the photovoltaic tile is assembled, only the frame of the photovoltaic tile needs to be embedded into the accommodating cavity, so that the installation difficulty of the photovoltaic tile is reduced; on the other hand, the photovoltaic tile fixing structure can be assembled independently, adjustment can be conducted according to the actual assembling position of the photovoltaic tile, and standardization of the photovoltaic tile fixing structure can be achieved; on the other hand, the assembly stability of the photovoltaic tile can be improved, so that the wind uplift resistance of the photovoltaic tile is improved; and on the other hand, independent disassembly and assembly of the photovoltaic tile can be realized.

The invention relates to the technical field of medical instruments, and discloses a carotid artery micro-net woven stent. The stent comprises a stent main body divided into a stent middle part and a stent end part, the stent main body comprises a first stent, a second stent and a plurality of connecting structures, and the first stent and the second stent are both in a hollow pipe shape and are connected with each other through the connecting structures; the first support and the second support are connected at multiple positions through a plurality of connecting structures, so that movement of the first support and the second support can be limited, and the connecting structures comprise the first connecting structure and the second connecting structure. The two different connecting structures are arranged on the stent body, so that the requirement for different slippage degrees of the ends and the middle is met, layers of the intravascular stent are attached during use, the structural integrity of the stent is kept, the stent is tightly attached to a blood vessel, and good supporting and effective covering are achieved.

The utility model belongs to the technical field of battery acquisition components, and particularly provides an acquisition lead and chip fixing device, which comprises a support plate and a plurality of lead fixing parts, and the plurality of lead fixing parts are mounted on the support plate along the routing path of an acquisition lead; a chip groove is formed in the supporting plate; the edge of the bar piece groove is provided with a buckle used for clamping the bar piece. The bottom of the chip groove is provided with an elastic sheet, and the elastic sheet protrudes out of the bottom surface of the chip groove. The fixing device adopts a special structural design, the fixing effect on the chip is good, and the chip is prevented from falling off due to extrusion; the supporting plate is further provided with a wire fixing piece installed along the routing path of the collection wire, wire harnesses are protected and fixed, damage caused by wire leakage and extrusion is prevented, the supporting plate is provided with a wire locking structure, and the subsequent tedious steps of wire locking in other modes are avoided. Based on the fixing device, the utility model also provides a battery module integrated busbar and a battery module.

The invention relates to the technical field of hydraulic motors, in particular to a hydraulic motor assembling production line. A hydraulic motor assembly production line comprises a conveying line used for conveying workpieces; the overturning press-fitting station is arranged on the conveying line, and after the overturning press-fitting station conducts primary press-fitting on the workpieces, the workpieces are overturned, and then secondary press-fitting is conducted; and the cover closing and torque hitting station is arranged on the conveying line, the cover closing and torque hitting station is located on the downstream of the overturning press-fitting station, and the cover closing and torque hitting station conducts cover closing and torque hitting on the pressed workpieces. The technical problems that in the prior art, in the hydraulic motor assembling process, repeated carrying is needed, the assembling difficulty is large, and the precision is low are solved.

The utility model discloses a soil turning mechanism for fungus planting, which relates to the technical field of fungus planting and comprises a box body, a handle is fixedly connected to the top of the right end of the box body, a connecting rod is fixedly connected to the middle of the left end of the box body, and a first connecting plate is fixedly connected to the bottom of the front end of the box body. A water inlet is fixedly connected to the top of the front end of the box body, a spraying mechanism is fixedly connected to the left portion of an inner cavity of the box body, and a soil turning mechanism is fixedly connected to the bottom end of the first connecting plate. According to the soil turning mechanism for fungus planting, the second motor is started, the second motor drives the threaded rod to rotate, the sliding rod slides on the outer wall of the threaded rod, meanwhile, the sliding rod drives the limiting block to slide on the inner wall of the box body, the limiting block limits the sliding rod, the sliding rod is prevented from being disengaged from the inner wall of the box body, and therefore the whole box body is lifted upwards; the follow-up device is more convenient to walk in the planting area, and the lifting effect is achieved.

The invention discloses a desktop computer host detection mounting rack based on software testing and a use method. The detection mounting rack comprises a lifting base, a direction adjusting mechanism, a clamping mechanism, a positioning mechanism and an air injection mechanism. The lifting base comprises a roller bearing frame, a lifting assembly and a bearing plate; the direction adjusting mechanism comprises a rotating assembly and a placing frame; the clamping mechanism comprises a clamping arm assembly and a clamping plate. The clamping arm assembly adjusts the clamping force according to the size of the main machine, and the two sides of the main machine are clamped through the clamping plate. The positioning mechanism comprises an annular plate, an L-shaped sliding rod and a positioning plate, the L-shaped sliding rod rotates along the annular plate to adjust the vertical height, and the top of the main machine is pressed and positioned through the positioning plate; the air cooling mechanism comprises an air cooling box and air exhaust holes, and the air cooling box outputs cold air through the air exhaust holes to take away heat of the case for cooling. The host detection mounting rack realizes an automatic fixing function in a computer host detection process, and has the advantages of good stability, simplicity in operation, high working efficiency and the like.

The invention belongs to the technical field of oil well sand prevention, and provides a filling tool for underground mining of a petroleum vertical well, which comprises a drainage inner pipe, a connecting end is mounted at the bottom of the drainage inner pipe in a threaded manner, an inner screen pipe is mounted at one end of the connecting end in a threaded manner, and a plurality of inner screen holes are formed in the side surface of the inner screen pipe. The intercepting assembly is arranged, the hole diameter of the intercepting assembly is smaller than the hole diameter of the outer screen hole, and the hole diameter of the outer screen hole is smaller than the hole diameter of the screen pipe, so that the outer screen pipe and the intercepting assembly can intercept most small-particle gravel, and loss of the small-particle gravel is prevented; by means of the sand burning glue, small-particle gravel blocked in the intercepting assembly and the outer screen pipe can be conveyed back into gravel layers, gaps between the gravel layers can be filled, the gravel layers can be combined more tightly and stably, the gravel can be mutually bonded through the sand burning glue, the gravel is prevented from being disengaged from the screen pipe, and therefore petroleum pollution is avoided.

The utility model discloses a transfusion anti-dropping device which comprises an upper ring body, a lower ring body and a lower ring body, an opening part is arranged on one side of the upper ring body, the neck of a transfusion container can be placed in the opening part, and the inner diameter of the upper ring body is smaller than the diameter of a connector of the transfusion container; a puncture outfit via hole is formed in the middle of the lower ring body, an open groove communicated with the puncture outfit via hole is formed in one side of the lower ring body, the diameter of the puncture outfit via hole is smaller than that of the puncture outfit convex ring, and the width of the open groove is smaller than that of the puncture outfit via hole; one end of the connecting piece is connected with the bottom of the upper ring body, and the other end of the connecting piece is connected with the upper part of the lower ring body. The infusion support is simple in structure and low in cost, and the upper ring body can be sleeved into the neck of an infusion container and supported on an infusion container connector; by arranging the lower ring body, the puncture outfit entering the puncture outfit through hole can be prevented from being disengaged from the open slot; the upper ring body and the lower ring body are connected into a whole through the connecting piece, the protruding ring of the puncture outfit can move downwards and be limited, and therefore the bottle stopper puncture outfit is prevented from being disengaged.

The invention discloses a riveting tool for a frame cross beam, which comprises two oppositely arranged positioning plate assemblies and two oppositely arranged positioner connecting plates which are encircled to form a rack and are used for positioning and fixing a bent connecting plate and the cross beam so as to overturn along with a positioner, wherein the two ends of one positioning plate assembly are connected with the sliding rails on the two positioner connecting plates, the positioning plate assemblies are used for fixing cross beams of different sizes through sliding adjustment, and rivet anti-falling assemblies are arranged on the positioning plate assemblies and used for abutting against rivets between the bending connecting plates and the cross beams so as to prevent the rivets from falling off when the rack turns over. The riveting tool for the frame cross member has the advantages of being simple in structure, high in applicability, stable in riveting quality, high in percent of pass, high in riveting efficiency and the like.

The utility model discloses an anti-freezing device for water conservancy and hydropower equipment. The water conservancy and hydropower equipment anti-freezing device comprises a water pipe, a heat insulation pipe is installed outside the water pipe in a sleeving mode, a closed installation cavity is formed between the heat insulation pipe and the water pipe, a heating rod is installed in the installation cavity, anti-freezing liquid is injected into the installation cavity, and a heat insulation layer is installed on the outer ring of the heat insulation pipe. According to the anti-freezing device for the water conservancy and hydropower equipment, the water pipe, the heat insulation pipe and the heating rod are arranged, anti-freezing liquid is injected between the heat insulation pipe and the water pipe, the anti-freezing liquid can be conveniently heated through the heating rod, the water pipe is heated through heat transfer of the anti-freezing liquid, and the water pipe is prevented from being frozen; heat loss can be effectively reduced, and the effects of saving energy and reducing consumption are achieved.

The utility model relates to the technical field of automobile door handles, in particular to a hidden type automobile door handle and a door handle assembly thereof, the hidden type automobile door handle comprises a base used for being connected with an automobile door, a handle connected with the base and a rotating shaft penetrating through the base and the handle respectively, and the handle can rotate around the axis of the rotating shaft relative to the base. And the limiting block is detachably connected to the base and is used for preventing the rotating shaft from being separated from the base. The hidden type automobile door handle solves the problem that a rotating shaft of an existing hidden type automobile door handle is in a movable inserting connection mode, so that the rotating shaft is prone to disengaging in the transportation process, the rotating shaft is convenient to disassemble and assemble, the rotating shaft can be prevented from disengaging, the risk that the rotating shaft of the hidden type automobile door handle disengages in the transportation process is avoided, and the service life of the hidden type automobile door handle is prolonged. And labor cost and repair time for checking and repairing the position of the rotating shaft after the product arrives at a main engine plant are saved.