32results about How to "Guaranteed reset" patented technology

The invention discloses a garden stratum deep soil sampling device and a sampling method thereof, and belongs to the field of stratum testing. A garden stratum deep soil sampling device comprises a drill rod and further comprises a drill bit fixed to the bottom of the drill rod; the sleeve rod is connected to the drill rod in a sleeving manner; the arc-shaped elastic pieces are circumferentially fixed to the drill bit at equal intervals, the upper ends of the arc-shaped elastic pieces are fixedly connected with the lower end of the sleeve rod, and the outer diameter of the arc-shaped elastic pieces is the same as that of the sleeve rod; the storage area is arranged between the arc-shaped elastic piece and the drill rod; the top plate is fixed on the sleeve rod; the bearing plate is fixed at the top end of the drill rod; by adopting the deformation sampling of the arc-shaped elastic sheet, the force required by the drill rod to be inserted into the deep part of the stratum is reduced, the drill rod can be conveniently inserted downwards, and the sampling accuracy is effectively improved.

The invention relates to the field of medical instruments, in particular to a gynecological vagina disinfecting and flushing device which comprises a storage box and a spraying mechanism, the spraying mechanism comprises a mounting block arranged on the storage box, a spraying assembly used for spraying water, gas or medicine is arranged between the mounting block and the storage box, the mounting block is provided with a mounting groove, and the spraying assembly is arranged in the mounting groove. Three blocking assemblies and a limiting assembly are arranged in the mounting groove, an unlocking assembly is further arranged in the mounting groove, the three blocking assemblies are used for switching objects sprayed by the spraying assembly, the limiting assembly is used for positioning the blocking assemblies, and the unlocking assembly is used for releasing limiting of the limiting assembly on the blocking assemblies; the spraying assembly comprises a spraying head arranged on one side of the storage box, objects sprayed by the spraying head can be adjusted through the spraying mechanism, namely, water, gas, water-like liquid medicine, water mist and vaporous liquid medicine can be sprayed, the practicability and use efficiency of the device are greatly improved, and discomfort and pain of a patient are reduced.

The invention discloses a cut-off component for an overpressure automatic cut-off pressure regulator, which comprises a valve body, a valve cover fixedly arranged on the valve body and a valve rod, the valve rod is rotatably arranged in the valve body, the cut-off component further comprises a cut-off mechanism arranged in the valve body, a plug body is fixedly arranged at the inlet end of the valve body, and a plug is arranged at the outlet end of the valve body. A rectangular groove is formed in the middle of the plug body in a penetrating mode, and a first intercepting plate and a second intercepting plate are symmetrically arranged in the rectangular groove and can rotate to open or close a channel in the valve body. On-off of the valve body is controlled through the first intercepter plate and the second intercepter plate in the plug body, the valve body can be closed when the free ends of the first intercepter plate and the second intercepter plate are combined together, on the contrary, the valve body can be opened, on one hand, normal reset of the valve rod can be guaranteed, and the fatigue phenomenon cannot be generated; on the other hand, the pressure regulating precision can be improved, the pressure regulating effect is guaranteed, and the advantages of long service life and easy control are achieved.

The application relates to the technical field of temperature-sensitive control, in particular to an automatic reset type temperature-sensitive control device, which comprises a device main body, rotating boxes are fixedly connected to the two sides of the device main body, an alternating heat conduction mechanism is arranged in the rotating boxes, the alternating heat conduction mechanism comprises heat insulation plates which are slidingly connected in the rotating boxes, left plates and right plates are fixedly connected to the two sides of the heat insulation plates, left heat conduction fins are slidingly connected to the end portions of the left plates, when the electrical equipment is damaged to cause abnormal temperature rise, the bimetallic strip is bent greatly when sensing the continuous high temperature, at the moment, the pressure rod drives the bimetallic strip to move downwards and is separated from the right heat conduction fin, the continuous transmission of the heat source to the bimetallic strip is cut off, plastic deformation of the bimetallic strip beyond the elastic bending limit is avoided, the bimetallic strip can be normally reset when the temperature falls back, and the long-term use performance of the bimetallic strip is ensured.

This utility model discloses a fully liquid-contact internal floating plate storage tank with a pressure relief device. The tank includes a storage tank with two guide rods fixedly connected to its inner wall. An internal floating plate is slidably and sealingly connected to the two guide rods. A fixed frame is fixedly connected to the bottom of the internal floating plate. A first sealing block is provided within the fixed frame and slidably and sealingly connected to it. A first spring is fixedly connected to the side wall of the first sealing block and the inner wall of the fixed frame. A fixed cylinder is fixedly connected to the top of the storage tank, and a pressure relief mechanism is provided within the fixed cylinder. This utility model, through the coordinated operation of the first sealing block, the second sealing block, and the lifting sealing plate, can automatically adjust the pressure relief process according to real-time changes in the air pressure inside the storage tank. The first and second springs provide reliable reset elastic force to each moving part, ensuring that the first sealing block, the lifting sealing plate, etc., reset after air pressure balance, achieving a tight seal.

The application discloses a deflection compensation structure of a bending machine, which comprises a bending machine frame, a supporting base fixedly arranged at the lower part of the bending machine frame, a deflection compensation assembly fixedly installed on the supporting base, a lower die seat installed on the deflection compensation assembly, a plurality of groups of the deflection compensation assemblies arranged side by side, the deflection compensation assembly comprising two groups of side baffles fixedly arranged at the upper part of the supporting base, a compensation base fixedly arranged between the two groups of side baffles, a lower inclined block fixedly installed on the upper end of the compensation base, and an upper wedge block slidingly arranged between the two groups of side baffles and matched with the lower inclined block; the compensation base is provided with a driving piece for driving the upper wedge block to move up and down; the lower die seat is pressed by the upper wedge block, so that the deflection of the bending machine is compensated, the deflection compensation amount of the workbench is adjusted in real time according to the change of the bending force after the dynamic deflection compensation, and the angle of the workpiece under different loads is kept stable.

The utility model relates to the technical field of timing equipment, in particular to an excitation system fan running time timer, which comprises a timer body with a circuit board and a display, and is characterized in that the timer body is electrically connected with a fan running contactor normally-open auxiliary node, so that when a fan runs, the normally-open contact is closed, and the timer body starts timing; the inner wall of the fan is provided with a shell covering the outer portion of the timer body, the shell is internally provided with a support used for fixing a timer circuit board, the support comprises a transverse rod and a vertical rod, the support is connected with an air nozzle in a sliding mode, the inner wall of the fan is provided with an air pump communicated with the air nozzle, and the air pump is connected with the transverse rod and the vertical rod in a sliding mode. The problems that in the prior art, timing equipment of an excitation system fan is inconvenient to time, and long-time use of the timing equipment is affected by environmental factors are solved, and the excitation system fan timing device is well applied to fan power plants.

The invention relates to the technical field of temperature-sensitive control, in particular to an automatic reset type temperature-sensitive control device which comprises an equipment body, a bimetallic strip is installed in the equipment body, alternating boxes are fixedly connected to the two sides of the equipment body, and alternating heat conduction mechanisms are arranged in the alternating boxes. The alternating heat conduction mechanism comprises a heat insulation plate slidably connected to the interior of the alternating box, the two sides of the heat insulation plate are fixedly connected with a left plate and a right plate correspondingly, and the end of the left plate is slidably connected with a left heat conduction piece. When the bimetallic strip is greatly bent after sensing continuous high temperature, the pressing rod can drive the bimetallic strip to move downwards and be separated from the right heat conducting strip, continuous transmission of a heat source to the bimetallic strip is cut off, the bimetallic strip is prevented from exceeding the elastic bending limit and generating plastic deformation, it is ensured that the bimetallic strip can be normally reset when the temperature falls back, and the long-term use performance of the bimetallic strip is guaranteed.

The utility model provides a communication cable fixer, which comprises a fixing seat, a base fixedly mounted on the bottom side surface of the fixing seat, a top seat mounted on the top side of the fixing seat, and a fixing column fixedly mounted on the right side surface of the fixing seat. The pressing assembly is mounted on the surface of the top seat, and the pressing assembly is used for fixing the cable; the cable placement buffer part is mounted on the surface of the fixing column, and the cable placement buffer part is used for placement of redundant cables; the fixing mechanism is fixedly installed at the tail end of the fixing column, and the fixing mechanism is used for fixing, pressing and guiding the cable. The communication cable between the upper wire groove and the lower wire groove is compressed and fixed, fixation of the communication cable is guaranteed, the connection strength between the communication cable and the communication equipment is improved, the communication cable downwards presses the buffer roller, the stress condition of the connection position of the cable and the communication equipment is achieved through the redundant communication cable, and stability of the communication equipment is guaranteed.

The invention provides a black soybean oil extractor and an extraction method, comprising a mounting frame, on which an oil pressing cylinder with a protective cylinder on the outer side is fixed, one end of the protective cylinder is provided with a hopper which is connected with the inner space of the oil pressing cylinder for supplying oil, the oil pressing cylinder is driven by a driving wheel on one side and is connected with a driving motor for transmission, a negative pressure mechanism is fixed on the outer side of the oil pressing cylinder, a negative pressure environment is formed on the outer side of the oil pressing cylinder to actively extract the oil, an active pressurizing mechanism is also provided on one side of the oil pressing cylinder, which is connected with the inner side of the oil pressing cylinder to form a high-pressure environment on the inner side of the oil pressing cylinder, a guide plate is provided on the mounting frame at the lower side of the negative pressure mechanism to collect the oil, and a slag frame is provided at the tail end of the oil pressing cylinder to collect the waste slag, the invention forms a pressure difference between the inner and outer sides through the negative pressure mechanism on the outer side of the oil pressing cylinder and the active pressurizing mechanism at one end, drives the oil between the bean dregs to flow and precipitate, improves the oil yield of black beans, and has good development prospects.

The utility model provides a slingshot releasing device which comprises a movable arm and a fixed combination table, the movable arm is installed on the fixed combination table, a trigger mechanism is arranged on the fixed combination table, and the trigger mechanism is in transmission connection with the movable arm and used for driving the movable arm to release a shot. The fixed combination table is connected with a holding seat, a universal joint is connected between the holding seat and the fixed combination table, and the holding seat is used for being held by a user. The problem of trajectory deviation caused by the holding posture is solved through the spherical hinge holding seat, and the shooting accuracy is remarkably improved.

The utility model discloses a lathe unloading mechanism which comprises a U-shaped base, a limiting frame and a machining table, sliding holes are formed in the two sides of the U-shaped base, sliding screws are arranged in the sliding holes in a sliding mode, the limiting frame is welded between the sliding screws, and the machining table is arranged in the limiting frame. A servo motor is mounted at one end of the limiting frame through a mounting seat, a servo motor controller is mounted at one end of the servo motor through a screw, an electric hydraulic cylinder is mounted at one end of the U-shaped seat through an L-shaped supporting plate and a bolt, and the limiting frame is mounted on an output shaft of the electric hydraulic cylinder through a screw; and a material receiving groove is formed in one end of the inner bottom of the U-shaped seat. According to the novel lathe unloading device, materials can be automatically unloaded into a prepared material receiving groove, taking is convenient, and the novel lathe unloading device is suitable for wide application and popularization.

The invention relates to the technical field of electromagnetic valves, and discloses an electromagnetic valve with a quick exhaust function, which comprises a valve body, working ports at the top end of the valve body are connected with working pipe joints, an air inlet at the bottom end of the valve body is connected with an air inlet connecting bin, and two exhaust ports at the bottom end of the valve body are connected with exhaust bins. Power can be extracted through the fan blades during air intake, so that the air pushing blades in the exhaust bin on any side can be driven to rotate through connection of the clutch mechanism, the air flowing speed during air exhaust is increased, the efficiency of resetting or action switching of the execution mechanism is guaranteed, meanwhile, the cam frame can be driven through the crankshaft end when the rotating shaft rotates, and the operation efficiency is improved. Therefore, the connecting rod and the piston slide in the air cylinder, negative pressure is formed in the negative-pressure air tank, high-pressure air remaining in the valve body can be discharged, the situation that the remaining air interferes with the next operation of a system or causes misoperation is avoided, abrasion of equipment is reduced, and the service life is guaranteed.

The utility model discloses an automatic punching and hole drawing machine for an air conditioner flute-shaped pipe, and relates to the technical field of pipe machining. Comprising a carrying table used as a bearing part; the transmission mechanism is installed at one end of the bottom of the carrying table, the control end of the transmission mechanism is of a pedal design, a trigger mechanism is installed at the output end of the transmission mechanism, and the trigger mechanism is installed on one side of the middle end of the top of the carrying table; a discharging port is formed in one end of the top of the carrying table, and a discharging leakage table used for discharging air conditioner flute-shaped pipes is installed at the position, at the discharging port, of the bottom of the carrying table. According to the air conditioner flute-shaped pipe punching device, through the arranged transmission mechanism, when a pedal at the control end is manually stressed, the punching mechanism can be driven to punch air conditioner flute-shaped pipes, meanwhile, after punching is conducted, the air conditioner flute-shaped pipes can be discharged to the discharging leakage table along the discharging port, and compared with a traditional manual punching mode, the punching efficiency is greatly improved. According to the device, the working efficiency of air conditioner flute-shaped pipe punching is effectively improved, and the labor intensity of manual punching is reduced.

The utility model belongs to the field of adhesive processing, particularly relates to a storage device for adhesive processing, and aims to solve the problems that the efficiency is reduced due to the fact that the discharging speed is low due to the viscosity of an adhesive, and residues can appear on the inner wall in the device. A feeding end is arranged on one side of the outer wall of the storage tank, a discharging end is arranged at the bottom of the storage tank, a discharging valve is arranged in the discharging end, an exhaust end is arranged on one side of the outer wall of the storage tank, and an air escape valve is arranged in the exhaust end. The discharging efficiency is improved, meanwhile, residual adhesive on the inner wall of the storage tank can be scraped out together, residues are reduced as much as possible, misoperation can be prevented, the phenomenon that the adhesive is directly added to the position above the piston plate is avoided, and therefore the practicability of the device is ensured.

The utility model discloses a chemical agent diluting device, include: main pipe, the one end of main pipe is closed and is set, branch pipe, its fixed setting is at the outside of main pipe, the other end fixed setting of branch pipe has venturi, valve body, its fixed setting is on the main pipe, the valve body has the inner chamber in, the main pipe inside is set up and is connected with the intercommunication hole of inner chamber, the liquid inlet of branch pipe is through with the inner chamber and is set, valve core, the upper end of valve core is used to the liquid inlet of branch pipe is closed, iron core, the iron core is up and down swing setting in valve body, the upper end of iron core and the lower end of valve core are in contact and set, movable cylinder, its fixed setting is at the outside of valve body, the outer ring of movable cylinder is up and down swing and is set with magnet, pass magnet and open and close the valve, need manpower to keep when opening the valve, and magnet will release the magnetic attraction connection of iron core after losing external force, thereby automatic closing the valve, avoid the situation of forgetting to close the valve.

The present invention discloses a contact wear monitoring method for a magnetic induction circuit breaker, including a circuit breaker, a base, a contact finger, two potentiometers and a connecting line, wherein the contact finger is mounted on the base and can move relative to the base, a cavity is provided on the surface of the base, a mounting shell is installed in the cavity, a traction component is installed in the inner cavity of the mounting shell, a reset component is provided at the lower end of the traction component, and two potentiometers are provided on both sides of the reset component; the present invention relates to the field of low-voltage electrical technology. The contact wear monitoring method for a magnetic induction circuit breaker can ensure the reset of the device through the reset component, and ensure that the sliding handle can always move in the vertical direction during the movement process, ensure the accuracy of the monitoring data, realize online monitoring of contact wear, and the monitoring result is more accurate and reliable. The present invention has a simple structure and low implementation cost.

The invention relates to the technical field of eye health, in particular to a control device for keeping eye health of children and teenagers and a using method thereof.The control device comprises a healthy eye control cover, a lining panel is arranged on the inner side of the healthy eye control cover, and control grids are arranged on the left side and the right side of the healthy eye control cover; a massage hammer unit is arranged on one side of the lining panel, the massage hammer unit comprises a plurality of placement boxes which are arranged on the lining panel up and down, through holes are formed in the inner sides of the placement boxes, control clamping heads are arranged on the inner sides of the through holes in a sliding mode, massage contacts are arranged in the middles of the inner sides of the control clamping heads in a penetrating mode, and the massage contacts are arranged on the inner sides of the control clamping heads in a penetrating mode. The massage position of the massage head can be controlled, numbness and discomfort caused by pressing the same part can be avoided, eye health can be improved, eye health can be kept, eye itching can be avoided, and eye health can be guaranteed by massaging eyes in a rolling manner and wiping water drops and the like formed by eye epidermis atomization in the process of spray therapy.

The present invention relates to the technical field of water conservancy flood discharge, and specifically to an intelligent flood discharge flow control device for water conservancy projects, including a shell, a filter screen and a cleaning mechanism; by setting a filter screen with an annular belt structure to intercept impurities, the impurities in the water can be continuously transported to its outlet side when the filter screen rotates, and the filter screen is arranged obliquely, which is convenient for the impurities on the water inlet side to move with the filter screen, and is also conducive to the impurities moved to the outlet side falling into the collection bin arranged on the shell. In addition, the shell is also provided with a plurality of water baffles distributed in sequence along the first axial direction, and the plurality of water baffles are respectively located on the water inlet side and the water outlet side of the filter screen, and the water baffles located on the water inlet side and the water outlet side of the filter screen are alternately distributed on the first axial direction, which is used to block the water flow from directly passing through the filter screen along the water flow direction, and reduce the probability of impurities adhered to the outlet side of the filter screen being washed away by the water flow, which can not only play a role in flow control, but also facilitate the cleaning mechanism to clean the filter screen.

The utility model relates to the technical field of cables, in particular to a cable structure capable of realizing heat dissipation in an energy storage process, which comprises a cable body, and an insulating layer, a shielding layer, a protective layer, a heat conduction sleeve and a weather-proof and wear-proof protective sleeve which are sequentially coated outside the cable body, and heat conduction channels are uniformly distributed in the weather-proof and wear-proof protective sleeve along the circumferential direction. The heat conduction channel is communicated with the heat conduction sleeve and the outside of the cable, and a plugging part is arranged on the weather-proof wear-resistant protective sleeve and located at an outer channel opening of the heat conduction channel. According to the utility model, heat is intensively conducted into the heat conduction channel by using the heat conduction sleeve, the heat conduction channel forms a closed space by using the plugging block, air pressure in the heat conduction channel is enhanced along with intensively increasing heat, and after the air pressure is increased to the limit, the plugging component is extruded to be communicated with the outside of the cable to realize heat dissipation. According to the utility model, the heat dissipation is effectively implemented, the safety of the product is improved, and the harm of the product to people is reduced.

The invention relates to the technical field of building engineering construction, and discloses a green building construction wastewater treatment device and a using method thereof.The green building construction wastewater treatment device comprises a sewage pool and a pesticide box, a water inlet port of the sewage pool is telescopically connected with a gravel box, a conical opening is formed in the gravel box, and an inner box is arranged on the conical opening; the inner box is connected in a fixed seat of the sewage pool in a sliding manner, a linkage rod is arranged on the fixed seat, the linkage rod is connected to a vertical frame of the inner box, the vertical frame is located in the inner box, and a partition plate is arranged in the inner box. When the gear rotates, the blocking plate is opened, chemicals in the storage box enter the inner box and fall onto the partition plate, along with rising of the conical opening, the position of the partition plate is fixed, the inner box rises to be away from the partition plate, and the chemicals on the partition plate fall into the sewage pool after being not limited, so that metal and impurities in the sewage pool are cleaned; therefore, the sewage is cleaner, and pollution is prevented from being damaged.

The utility model provides a spiral compression packing machine for light materials, which belongs to the technical field of packing machines and comprises a base, a compression bin is arranged at the top of the base, a spiral compression mechanism is rotatably connected in the compression bin, a driving motor for driving the spiral compression mechanism to rotate is arranged on the base, and a fixing plate is communicated with the top of the compression bin. A through opening and a feeding hopper penetrate through the top of the fixed plate, the outer wall of the fixed plate is sleeved with a movable plate, the movable plate is movably connected with the fixed plate, and a vibration mechanism for driving the feeding hopper to shake is arranged on the compression bin. By arranging the vibrating mechanism, the feed hopper is driven to vibrate through the aligning mechanism, so that materials in the feed hopper fall into the compression bin during vibration, the whole structure is simple to operate, and the phenomenon that the feed hopper is blocked is avoided.

The utility model provides a die pre-reset detection device, which belongs to the technical field of die casting and comprises a base, a support fixedly connected onto the base, a hydraulic push rod fixedly connected onto the support and a lower die fixedly connected onto the base. The pre-reset assembly comprises an upper pressing block fixedly connected to the bottom end of the hydraulic push rod, a movable groove is formed in the upper pressing block, an upper mold is slidably connected into the movable groove, a compression spring is connected between the upper mold and the interior of the movable groove, and two triangular sliding blocks are slidably connected into the movable groove. And the lower die is fixedly connected with two pre-reset rods. According to the utility model, the push-out mechanism can be elastically recovered to the initial position, so that the die is prevented from being abraded, and the stability of the pre-resetting and die-casting process is ensured; and whether pre-resetting is accurately carried out or not can be observed more visually and accurately, and subsequent resetting and die-casting work is guaranteed.

The utility model discloses an operating mechanism of a dial code lock makes the dial code lock more stable, and it includes password component, knob, movable block and lock tongue, the peripheral surface of password component is rotatably matched with knob, and movable block is slidably matched with the inner wall of knob along the axial direction of knob, and lock tongue is slidably matched with the inner wall of knob along the axial direction of knob and is arranged in movable block, password component includes movable axle and retainer that move along the radial direction of knob, the end of movable axle is movably matched with the upper of movable block, and with the rotation of knob, lock tongue is contacted and presses down movable block, the end of retainer is movably contacted with the inner arc surface of movable block, and when movable block is pressed down by movable axle, it is stretched to realize the movable cooperation on the upper surface of movable block, the end of inner arc surface is provided with notch, and the back slope is arranged between notch and inner arc surface, when the end of retainer is embedded in notch, movable block resets, and when knob resets, the back slope makes retainer reset.

The utility model relates to the technical field of steel ball forging annular furnaces, in particular to an annular furnace for steel ball forging, which can ensure that a scraper blade is reset, so that the scraper blade keeps moving normally, a good scraping effect on slag is ensured, and the practicability is improved. Comprising a furnace body, a heat dissipation plate is fixedly welded between the two sides of the inner wall of the furnace body, an ash removal hole is formed in the left end of the furnace body, a slag outlet is formed in the right end of the furnace body, a fixing plate is fixedly connected to the inner wall of the ash removal hole, and an inner threaded sleeve is rotationally installed in the middle of the fixing plate through a bearing; a motor is fixedly installed on the rear supporting plate, the output end of the motor is fixedly connected with a transmission worm, the transmission worm is rotationally installed on the two supporting plates and meshed with the worm gear, the right end of a transmission lead screw is fixedly connected with a connecting base, the connecting base is located in the furnace body, and a scraper is installed on the connecting base and used for scraping slag at the top end of the heat dissipation plate.

The invention relates to the technical field of bearings, in particular to a high-bearing-capacity split type double-row tapered roller bearing which comprises a bearing outer ring and two bearing inner rings. The two bearing inner rings are located in the bearing outer ring and detachably connected with the bearing outer ring, roller bodies are arranged in the bearing inner rings, a gasket is arranged between the two bearing inner rings, and a mounting box is fixedly connected to the outer side of the bearing outer ring. According to the lubricating device, through the arranged auxiliary assembly, lubricating oil is adsorbed through an adsorption pad arranged in a guide groove and is uniformly smeared on the surface of a roller body at the same time, the situation that only the local part of the roller body is lubricated is avoided, and therefore the service life of the lubricating device is prolonged; redundant lubricating oil can be adsorbed, and the phenomenon of reverse filling of the lubricating oil when the lubricating oil is injected can be avoided through the arranged dispersing pieces, so that normal use of the lubricating oil injection device is ensured.

The utility model discloses a safety type chemical medicine infusion bottle which comprises an infusion bottle body and an infusion opening fixedly installed at the lower end of the infusion bottle body, an installation cover is fixedly installed at the upper end of the infusion bottle body, a protective cover is rotatably installed at the upper end of the installation cover, and a hook ring is fixedly installed at the upper end of the protective cover. And a blunt needle is fixedly mounted at the upper end of the infusion bottle body. According to the safety type chemical medicine infusion bottle, the protective cover is arranged, the protective cover is installed on the outer side of the protective barrel in a threaded mode, the blunt needle can be comprehensively wrapped, the blunt needle is prevented from being exposed on the outer side, the sterility of the blunt needle is guaranteed, the protective barrel and the sealing cover are arranged, the outer side of the blunt needle can be directly sleeved with the protective barrel and the sealing cover, and the safety of the infusion bottle is improved. And through the movement of the protective cylinder and the sealing cover, a blunt needle can complete the medicine dispensing process of the infusion bottle conveniently, a puncture needle is prevented from being used, the use of consumables is reduced, the occurrence of needle pricking injury is avoided, and the working safety is improved.

This utility model discloses a gear-driven mixer assembly, including a tank cover, a stirring device disposed below the tank cover, a motor disposed on the tank cover, and a protection device connected to the output end of the motor. The protection device includes a connecting sleeve, a connecting rod, a connecting groove, a control sleeve, a push block, a push spring, a mating sleeve, a sliding block, a connecting frame, and a sliding groove. The connecting groove is located on the outside of the connecting rod. The push block is connected to the sliding block via the push spring. The mating sleeve is connected to the control sleeve via threads. The connecting frame is disposed on one side of the push block. The sliding groove is located on the inside of the connecting sleeve. A positioning mechanism is disposed on the outside of the connecting sleeve. The positioning mechanism includes a reset plate, a positioning sleeve, a reset rod, a fixing block, a reset spring, a reset hole, and a reset block. The reset rod is connected to one side of the positioning sleeve. The two ends of the reset spring are connected to the fixing block and the reset block. The reset hole is located on the reset plate. This utility model can achieve uniform stirring, has a reliable and flexible protection mechanism, and has a stable structure.