107results about How to "Strength is easy to control" patented technology

The invention discloses a solid-phase preparation method for nano zinc oxide through a template and relates to a solid-phase preparation method for nano zinc oxide. The method comprises the following steps: first, synthesizing lignin into lignin amine; and then, performing solid-phase preparation for nano zinc oxide taking the lignin amine as the template. According to the invention, the reticular lignin amine is prepared from the lignin through Mannick reaction, the advantages of being low in cost, nontoxic, easy to get and the like can be achieved; some base groups of the lignin amine are removed through high-temperature roasting, a pore structure is left, so that the specific surface area of the nano zinc oxide obtained from the lignin amine as a template agent is increased. Therefore, the method provided by the invention has the advantages of simple synthesis process, uniform particle size, controllable dynamics, low cost, easiness in operation, high yield, and low pollution, and reduces the hard aggregation appearance. The product prepared from the method is ice-cream, and adopts the structure of lead zinc ore of hexagonal system, and is suitable for industrialized production.

The invention discloses a clamp for processing a positioning hole on an engine cylinder cover. The clamp comprises a base plate for mounting the cylinder cover, a horizontal clamping mechanism used for clamping the cylinder cover in the horizontal direction and arranged on the base plate as well as a vertical clamping mechanism for clamping the cylinder cover in the vertical direction. The horizontal clamping mechanism and the vertical clamping mechanism can be used for clamping the cylinder cover by adopting hydraulic and pneumatic clamping modes. Compared with the prior art, the clamp has the advantages that the cylinder cover is clamped by using a spiral spring pressurizing block in a hydraulic and pneumatic driving and clamping mode instead of a traditional manual operation of workers, so that the cylinder cover is automatically clamped during clamping and further the problem that the efficiency is reduced as the time is consumed for the traditional manual operation in a traditional tooling is greatly reduced and quickness and accuracy in clamping are realized; and in addition, the strength in the hydraulic pressure and air pressure clamping processes can be controlled and the deformation caused by the non-uniformity of the operation strength of workers during clamping is compensated.

A negative step force testing system comprises a device under test, a force sensor fixed on the device under test and a negative step force generating device for applying acting force on the device under test. The negative step force generating device comprises a pressure cylinder, a pressure control loop, a pressure piston, a piston rod, an unloading port and a unloading valve, wherein the pressure control loop is connected with the pressure cylinder, the pressure piston divides the cavity in the pressure cylinder into a first pressure cavity and a second pressure cavity, the piston rod is fixedly connected with the pressure piston, the unloading port is formed in the pressure cylinder, and the unloading valve is matched with the unloading port to open or close the unloading port. The unloading port is arranged in the pressure cavity, the piston rod penetrates through the second pressure cavity, the exposed end of the piston rod pushes the device under test, the force sensor senses pressure between the piston rod and the device under test, and the pressure control loop controls the pressure generated when the piston rod pushes the device under test. The negative step force testing system has the advantage of being accurate in initial force, large in initial acting force and adjustable in falling edge time of force.

The invention relates to a slot turning process for a stator coil and an auxiliary tooling device thereof. The process of the invention comprises the following steps: flatly wrapping a spread coil with a white cloth tape compactly once, wherein the white cloth tape is not allowed to be overlapped at a straight line edge; then preforming in a slot turning mold; compacting a lower layer edge of the coil by a coil rod and a slot wedge in the slot turning mold; then raising a first coil out of an iron core to a certain height, and raising the rest coils sequentially to be higher than the previous coil for a certain distance; in the process of raising at the upper layer edge, applying force vertical to the direction of an iron core surface for providing a guarantee for inserting the next coil smoothly; when each coil is raised, fixing a special iron rod and the upper layer edge firmly with a nylon cable tie; then raising the upper layer edge by a slot turning rod; after slot turning of the coil is finished, withdrawing the slot wedge, and taking out the coil rod and the like; when the lower layer edge of the coil is out of the slot, raising out the lower layer edge integrally by the special iron rod, wherein the straight line edge after the lower layer edge is raised out is straight without deformation; after slot turning is finished, removing the white cloth tape of the coil; wrapping outer insulation according to the insulation wrapping requirement of the coil; and normally inserting the coil as a slot turning position coil after the coil meets the requirement.

The invention discloses an abdominal cavity distraction device which comprises a support connected to a bed body. A sleeve is arranged on the support. Two abdomen distraction arms which are driven by a driving mechanism to move relatively are connected in the sleeve in a sliding mode. Abdomen distraction plates are arranged at the outer-extending ends of the two abdomen distraction arms respectively. Inserting long grooves are formed in the two abdomen distraction arms respectively. Pulling rods with the widths smaller than those of the inserting long grooves are inserted in the inserting long grooves. Viscera traction plates are arranged on the end portions, extending to the positions between the two abdomen distraction arms, of the pulling rods. The abdomen distraction arms are connected with locking bolts which extend into the inserting long grooves in a screwing mode. The abdominal cavity distraction device has the advantages that the angle and the force of viscera traction can be guaranteed, and surgical field exposure can be guaranteed.

The invention discloses a building wall painting device convenient to use. The device comprises a supporting plate, a bracket, a paint box and a painting roller, wherein a sliding block is mounted onthe inner side of the bracket, a first threaded rod and a second threaded rod are mounted on the inner side of the bracket, a motor is installed at the bottom end of the first threaded rod, the sliding block is connected with a fixing rod, the front end of the fixing rod is provided with an air cylinder, the front end of the air cylinder is provided with a telescopic rod, the front end of the telescopic rod is provided with a second rotating bearing, the painting roller is mounted on the inner side of the second rotating bearing, a first rotating bearing is mounted at the upper end of the second rotating bearing, the inner side of the first rotating bearing is provided with a paint pipe, the bottom end of the paint pipe is provided with a paint sprayer, the middle part of the upper end ofthe paint pipe is provided with a feeding port, and the feeding port is connected with a rubber hose. The building wall painting device is reasonable in structure and simple in operation, painting isuniform through the painting roller, uninterrupted work can be carried out through the paint pipe, and the painting work efficiency of the painting roller is improved.

The invention discloses a gluing and film covering device. The gluing and film covering device comprises a workbench used for bearing a product A and extending in the X direction, and further comprises an unwinding and film covering assembly, a gluing assembly and a winding assembly, wherein the unwinding and film covering assembly walks in a reciprocating mode in the X direction and attaches a product B to the upper surface of the product A in an unwinding process; the gluing assembly is arranged on the unwinding and film covering assembly and glues the upper surface of the product A; and thewinding assembly walks in a reciprocating mode in the X direction and winds a protective film on the upper surface of the product B in a winding process. The gluing and film covering device has the characteristics of being high in production efficiency, compact in structure, flexible in operation and stable in gluing quality.

The invention discloses a nut shelling machine, which comprises a shell and a pressing device, wherein the shell is composed of an upper shell and a lower shell; a chute and first through holes are formed on the inner surface of the upper shell; the first through holes extend out of the upper shell, so that a plurality of L-shaped baffle rods are formed; two opening / closing arc-shaped cover bodies and second through holes are formed on the sidewalls of the upper shell; a plurality of pressing grooves are arranged on the lower surfaces of the arc-shaped cover bodies; the pressing device comprises a fixed plate and a movable plate; a semicircular first groove is arranged on the upper surface of the fixed plate; the movable plate is provided with a plurality of bumps corresponding to the first groove; a rod body is arranged on another long side of the movable plate; a rolling wheel and screw rods are arranged on a short side of the movable plate; and the lengths of the screw rods, extending out of the first through holes, are adjusted according to a linear distance, so that the screw rods are limited by the baffle rods. The nut shelling machine disclosed by the invention has the advantages of being simple in structure and convenient operate, capable of simultaneously shelling a plurality of nuts and the like.

The invention discloses a novel abdominal retractor for surgery, and relates to the technical field of abdominal retractors. The novel abdominal retractor comprises a bottom plate, wherein the top ofthe bottom plate is fixedly connected with a stand column, the top end of the stand column is rotatably connected with a threaded column, the threaded column is in threaded connection with a threadedbushing, the side wall of the threaded bushing is fixedly connected with a supporting column, a sliding column is arranged at one end of the supporting column, and an annular rod is arranged at one end of the sliding column. According to the invention, the novel abdominal retractor is reasonable in structure; by arranging the sliding block, the U-shaped pressing plate, the butterfly nut, the threaded rod and the annular rod, the positions of the sliding block and the sliding plate can be adjusted conveniently according to the position of a knife edge, and position fixing is conducted through the U-shaped pressing plate, so that operation is convenient and easy; and by arranging the gear and the rack, force can be conveniently controlled, and the opening degree of the traction knife edge ofthe traction plate is conveniently controlled, so that unnecessary injury to the patient caused by further expanding of the incision of the patient due to direct manual sliding of the traction plateis avoided.

The invention discloses an abdominal cavity operation speculum which comprises a supporting bracket connected to a bed body, a sleeve is arranged on the supporting bracket, two abdomen opening arms which move relatively driven by a drive mechanism are connected in the sleeve in a sliding mode, the outwards-expansion ends of the two abdomen opening arms are provided with abdomen opening plates respectively, the two abdomen opening arms are provided with plug-in long grooves respectively, pulling rods with the widths being smaller than the widths of the plug-in long grooves are inserted in the plug-in long grooves, a visceral organ traction plate is arranged on the end portion, stretching into the space between the two abdomen opening arms, of each pulling rod, and locking bolts extending into the plug-in long grooves are connected to the abdomen opening arms in a threaded mode. The abdominal cavity operation speculum has the advantages of guaranteeing the angle and force for stretching a visceral organ and guaranteeing operation vision exposure.

The invention discloses intelligent detecting installing equipment for multiple types of piston rings. The intelligent detecting installing equipment for the multiple types of piston rings comprises an installing platform, an oil ring positioning device, a conical surface gas ring positioning device and a barrel surface gas ring positioning device are connected to the installing platform, and first longitudinal slide rails, a first switching electric cylinder and a first material bin supporting plate are transversely arranged in the middle of the installing platform; the oil ring positioning device comprises first pushing mechanisms, oil ring material frames and oil ring expanding devices, and the oil ring material frames are connected to the first material bin plate; each oil ring expanding device comprises a first material receiving plate, a first transmission gear ring and a first expanding mechanism, a first piston supporting block is arranged in each first material receiving plate, and a first buffering reset mechanism and a first buffering support are connected to the lower end of each first piston supporting block; each first transmission gear ring is located at the lower end of the corresponding first material receiving plate and arranged outside the corresponding first piston supporting block in a sleeving mode; and the conical surface gas ring positioning device and the barrel surface gas ring positioning device are arranged on the portion, on the right side of the oil ring positioning device, of the installing platform. According to the installing equipment intelligent installing of the piston rings can be achieved, operation is easy and convenient, and the installing efficiency is high.

The invention discloses a method for solid-phase macrosynthesis of non-noble metal oxygen reduction catalyst, and a catalyst and application thereof. The preparation method comprises the following steps of: (1) uniformly mixing a chelating agent with an inorganic metal salt, and performing solid-phase grinding to obtain a precursor; and (2) performing heat treatment on the precursor obtained in the step (1) in an inert atmosphere, and washing, separating and drying the product to obtain the non-noble metal oxygen reduction catalyst. The method for solid-phase macrosynthesis of a non-noble metal oxygen reduction catalyst disclosed by the invention is simple in process and suitable for large-scale industrial production, and the obtained non-noble metal oxygen reduction catalyst is excellentin performance and has the potential to be used as a substitute of a noble metal oxygen reduction catalyst of a fuel cell or a metal-air cell.

The invention discloses a prefabricated stair component mechanical property detection system, which comprises a pressing mechanism, a translation bearing mechanism and a pressure transmission component, wherein the pressing mechanism is used for applying vertically downward pressure to a stair component by utilizing hydraulic pressure; the translation bearing mechanism is arranged below the pressing mechanism and has the horizontal translation freedom degree of moving out from the position under the pressing mechanism; the translation bearing mechanism is further provided with rollers making contact with the lower surface of the stair component, the rollers comprise the upper roller and the lower roller which are horizontal and parallel to each other, and the upper roller and the lower roller are not located at the same horizontal height and make linear contact with the stair component; and the pressure transmission component is arranged between the pressing mechanism and the stair component, the lower surface of the pressure transmission component makes contact with the multiple stepping faces on the stair component, and the upper surface of the pressure transmission component isprovided with a horizontal plane making contact with the pressing mechanism. When the system is used for the pressing test of the stair component, the action is efficient, and the experimental data isaccurate.

The invention relates to a multifunctional fitness massage chair and belongs to the field of daily articles. The multifunctional fitness massage chair comprises a fixed support, the top of the fixed support is provided with a seat, the fixed support on both sides of the seat is provided with armrests, the rear of the fixed support is hinged to a movable support, the movable support is provided with a waist and back massage device, the top of the movable support is provided with a neck massage device, the bottom of the movable support is connected to one end of a damping spring, and the other end of the damping spring is fixed to the rear end of the bottom of the fixed support; the front end of the bottom of the fixed support is hinged to a sole and shank massage device; both sides of the top of the fixed support are also provided with a shoulder movable lifting unit which is connected with one end of a rubber rope, and the other end of the rubber rope passes through a guide wheel at the rear end of the bottom of the fixed support and is then fixedly connected with the top of the movable support. The multifunctional fitness massage chair is reasonable in structural design, attractive in appearance, capable of saving separated space occupation, low in cost, energy-efficient, environmentally friendly, easy to operate, capable of integrating a furniture function and a healthcare massage function and high in practicality.

The invention discloses a detergent putting device and clothes processing equipment. The detergent putting device comprises a detergent box, a distributor and a driving assembly, wherein the detergentbox is provided with a plurality of gear installing parts arranged at intervals, the distributor is movably arranged in a containing cavity, and a control part is arranged at the front surface of thedistributor; the driving assembly comprises an extension spring, a rack piece and at least one damping gear, and the damping gear is arranged at any one of the multiple gear installing parts and meshed with the repack piece so as to form damping when the distributor is popped out. According to the detergent putting device, the multiple gear installing parts are arranged on the detergent box, thedamping gear arrangement position can be selected as needed, and therefore the popping-out speed and popping-out intensity of the distributor are controlled. The distributor is buffered in the openingprocess.

The invention provides a device for testing heat sensitivity of a material in an enclosed space. The testing device comprises eight parts such as a heating and protecting device, a steel tube, a closing device of the steel tube, a control switch, a solid compaction device and the like, wherein the solid compaction device comprises an outer frame, a counter weight, a fixed pulley, a rotary handle and a porous stainless steel plate for accommodating the steel tube and the closing device of the steel tube. By the testing device, materials to be detected are filled in a non-recyclable steel tube and a recyclable closing device according to needs, and a form of the heated steel tube is observed to judge whether the materials have high-temperature sensitivity.

The invention discloses a flange-type magnetic steel pasting machine comprising a frame and upper and lower brackets disposed thereon. The upper bracket is provided with a vertically downward down-pushing driving source. The shaft end of the down-pushing driving source is provided with a suction cup. The lower bracket is provided with a spring and an expanded lobe disc. The spring is provided witha support column. The expanded lobe disc is provided with a vertically upward lobe the free end of which is provided with a radially protruding wedge surface protrusion. The expanded lobe disc is provided with a mother disc on which positioning protruding blocks and support holes which are equally distributed on the upper surface thereof are disposed. The positioning protruding blocks are provided with positioning baffles. The mother disc between the positioning protruding blocks is provided with a lobe hole penetrating through the mother disc. The wedge surface protruding blocks pass throughthe mother disc through the lobe hole, and a part of the wedge surface extends into the height of the positioning baffle. The support column is stuck in the support hole. The flange-type magnetic steel pasting machine can automatically push forward the magnetic steel, so that the pasting quality of the magnetic steel is higher, and the magnetic steel is not easily damaged, and the structure is simple and the cost is low.

The invention relates to the technical field of stainless steel doors and discloses an automatic embossing device for a stainless steel door. The automatic embossing device comprises an automatic feeding mechanism and an embossing mechanism which are arranged in parallel, wherein the embossing mechanism comprises an embossing rack, a support arranged on the embossing rack, a fixing plate arranged on the support, a first embossing oil cylinder, a second embossing oil cylinder, a first embossing head, a second embossing head and a controller, wherein the first embossing oil cylinder and the second embossing oil cylinder are arranged on the fixing plate; the first embossing head is arranged at a power output end of the first embossing oil cylinder; the second embossing head is arranged at a power output end of the second embossing oil cylinder; and the controller is arranged on the fixing plate and is used for controlling the first embossing oil cylinder and the second embossing oil cylinder to work. According to the automatic embossing device disclosed by the invention, during use, the stainless steel door is fed onto the embossing rack by the automatic feeding mechanism and can be embossed by the two embossing oil cylinders, thereby greatly improving the working efficiency and reducing labor intensity of workers; and in addition, the embossing strength can be controlled and higher uniformity in embossing is realized.

The invention discloses a controllable spinal cord injury model device and manufacturing and using methods thereof. The device comprises a catheter, a front end of the catheter is connected with a sealed flexible balloon, an injury simulation bump with higher hardness is fixedly arranged on the outer surface of the front end of the balloon, and a developing mark is fixedly arranged on the front end of the balloon. The using method comprises the following steps: 1) inserting a lumbar puncture needle into a vertebral canal between two vertebral bones; 2) penetrating the front end of the catheterand the flexible balloon through the lumbar puncture needle, and placing the balloon at the position require by the experiment through a development mark under the guidance of an X-ray machine; 3) connecting the posterior end of the catheter with the syringe, and injecting liquid into the catheter, so that the flexible balloon is inflated into a preset shape, and the injury simulate bump at the front end of the balloon contacts with the target spinal cord nerve and is squeezed; 4) pumping out the liquid to withdraw the flexible balloon and catheter; the device has the advantages of high precision of simulate damage position, good repeatability, controllable strength and convenient operation, and can simulate impact damage and compression damage at the same time, so that the accuracy of the experiment can be greatly improved.

The invention discloses a mine tailing brick for roads and a preparation method of the mine tailing brick. The mine tailing brick comprises tailing slag, medium sand, cement, water and additives. Thepreparation method comprises the following steps: S1, dry mixing; S2, wet mixing; and S3, pouring and molding. According to the preparation method, two times of processing molding are adopted throughdry method and wet method, so that the strength and moisture of the molded product are easy to control; the molded product is pressed in a molding cavity, so that brick preparation is more convenient,no firing is needed, no steaming is needed, energy is saved, no pollution is caused; in pressing, a vacuum mechanism is adopted for extracting air, on one hand, the downward pressure of a pressing plate can be larger, the reverse abutting force of air on the pressing plate is eliminated, and on the other hand, air holes in the brick can be eliminated, so that the strength of the brick is higher.

The invention discloses an abdomen opening device, which comprises two abdomen opening arms one ends of which are hinged together, and the other ends are respectively provided with an abdomen opening plate, the hinged end of the two abdomen opening arms is provided with a locking device, at least one abdomen opening arm is in sliding connection with a pull rod, the abdomen opening arm is also provided with a pull rod locking device, and the end close to the abdomen opening plate on the pull rod is provided with a viscus dragging plate; and the viscus dragging plate is connected on the pull rod via a direction regulating mechanism. When abdominal surgery is carried out, the abdomen opening device can make the operative field exposed sufficiently, the viscera dragging plate at the pull rod stretch-in end is used for poking other viscera to replace the manual operation of medical workers, which is conductive to controlling the force and the angle when dragging the viscera, and greatly reduces the working intensity of the medical workers, so the invention has the advantages of ensuring the angle and the force for dragging the viscera and ensuring the exposure of the operative field.

The invention discloses a bottled eye drop packaging device in the technical field of eye drop production. The bottled eye drop packaging device comprises two first limiting conveying devices, a second limiting conveying device, filling equipment, a screwing mechanism and a supporting table. When a pneumatic clamping device on the left side passes by filling equipment, filling is completed through triggering, the two pneumatic clamping devices finally reach the inner side of the screwing mechanism at the same time, two racks move relatively through an adjustable low-speed motor, two sets of rotating blocks clamp the bottom of an eye drop bottle and the top of a plastic cover correspondingly, a first photoelectric switch generates a trigger signal when the two rotating blocks get close to each other, an electric mortise lock is made to extend, then a moving rod can rotate when moving downwards, and screwing is finished, finally, the eyedrop bottles are pushed out of the pneumatic clamping devices through a separating device and fall onto the second limiting conveying device, subsequent code spraying, labeling, packaging and other steps are carried out, the eyedrop bottles and the plastic caps are accurately aligned through a timing system, the screwing force intensity and time are controllable, and the automation degree is high.

The invention discloses a variable-stroke hydraulic pliers, which belongs to hydraulic shearing equipment. It includes a clamp seat, a hydraulic cylinder, a hydraulic cylinder rod, a hydraulic handle, and a handle. There is a fixed seat, the clamp seat is set on the fixed seat, the front end of the clamp seat is provided with an upper knife seat, the hydraulic lever is provided with a lower knife seat, and the lower end of the clamp seat is also provided with a rotating device for use with the clamp seat; the fixed seat is a shaft The sleeve installed on the hydraulic cylinder slides in the direction; the hydraulic cylinder is provided with an external thread at the joint with the sleeve, and a fastening nut installed on the external thread of the hydraulic cylinder is respectively arranged on both sides of the fixing seat. The invention has the advantages of simple structure, convenient operation, good shearing effect, time-saving and labor-saving, and anti-slip; through the adjustment of the fixing seat, the effective stroke of the hydraulic cylinder is changed, the strength can be well controlled, the device can be protected, and the service life of the device can be prolonged.

The invention discloses a therapeutic apparatus and a therapeutic method for treating hypertension on the basis of arch bridge massage. A system of the therapeutic apparatus comprises a massage instrument (1), an acupuncture point detection signal treating circuit, an acupuncture point massage circuit, a microprocessor, a display unit and a voice broadcasting unit, wherein the massage instrument (1) comprises at least two probes (3); each of the probes (3) is connected with a handle (5) through an elastic connecting component (4); one ends of the probes (3) are connected with detecting parts;the other ends of the probes (3) are connected with an input end of an amplifying circuit of the acupuncture point detection signal treating circuit through a sensor (2); the amplifying circuit, a filter circuit and an A / D sampling circuit are connected in turn; an output end of the A / D sampling circuit is connected with the microprocessor; and the output end of the microprocessor is connected with the probes (3) through an A / D conversion circuit and a pulse current generating circuit in turn. By adopting the therapeutic apparatus provided by the invention, the treatment for the diseases, such as hypertension, is realized by massaging the arch bridge acupuncture point; the acupuncture point is automatically detected; the accurate positioning is realized; the operation is convenient; and the use is safe.

The invention belongs to the technical field of crop measurement. The invention particularly relates to a sugarcane lodging-resistant strength testing device and a using method thereof. The device comprises a base, a transmission device, a sliding assembly, a pull and push dynamometer and a clamping assembly. The base comprises fixing plates and a connecting plate. Arc-shaped sliding grooves are formed in the fixing plates. Five clamping grooves are formed in the arc-shaped sliding grooves at intervals; 15-degree scale marks, 30-degree scale marks, 45-degree scale marks, 60-degree scale marksand 75-degree scale marks are sequentially arranged below the five clamping grooves in a clockwise direction; the transmission device is fixedly connected between the two fixing plates, one end of thetransmission device is fixedly connected with the bottom of the sliding assembly, the sliding assembly is inserted into the arc-shaped sliding groove and is in sliding connection with the arc-shapedsliding groove, the top of the sliding assembly is fixedly connected with the push-pull force dynamometer through a bolt, and one end of a measuring head of the push-pull force dynamometer is fixedlyconnected with the clamping assembly used for clamping sugarcanes. The device is simple to operate and use and high in test precision, and can test the lodging-resistant strength of the sugarcane by selecting different lodging angles.

The invention discloses a shearing-type infusion squeezing device. The device comprises a squeezing device, a pressure driving device and an infusion device, the squeezing device is composed of a fixing plate, a moving plate hinged to the fixing plate, a pressure driving device is fixed to the outer side of the fixing plate, a gravitational force balancing device is arranged at the bottom of the outer side of the fixing plate and is composed of an L-shaped hanging panel, a ball hinge A, a ball hinge B, a connecting rod and a heavy hammer, one face of the L-shaped plate is fixed to the fixing plate, the other face is suspended on the ball hinge A, the bottom of the ball hinge A is rotatably connected with the top of the ball hinge B, the bottom of the ball hinge B is rotatably connected with the top of the connecting rod, the bottom of the connecting rod is fixed to the heavy hammer, and a Murphy's dropper is fixed to the connecting rod through a clamping hoop. According to the device,infusion liquid is squeezed in a shearing-type progressive squeezing manner, the infusion liquid does not need to be hanged high, the Murphy's dropper is allowed to be always in a perpendicular statethrough the cooperation of the ball hinge A, the ball hinge B and the heavy hammer, the observation of the dripping speed of medicinal liquid is convenient, and the dripping speed is further controlled through a speed regulator.

The invention discloses a film tearing device and method. The device is used for tearing apart films on the surfaces of products, wherein the parts, covered with the films, of the products are film covered parts, and the remaining parts of the products are naked parts. The device comprises a rack, a carrying tray, a covering plate and a clamping jaw assembly, wherein the carrying tray is used forplacing the products and installed on the rack; the covering plate is arranged above the products and covers the naked parts to make the films be exposed, and the covering plate is fixedly arranged onthe carrying tray in a detachable mode; and the clamping jaw assembly is movably arranged on the rack and used for tearing apart the films on the surfaces of the products. The carrying tray is in magnetic force connection with the covering plate; and alternatively, protrusions are arranged on four sides of the carrying tray, and the covering plate is clamped on the carrying tray through the protrusions. The surface of the carrying tray is provided with through holes matched with the products in position, a vacuum base is arranged below the carrying tray, and suction nozzles of the vacuum baseare matched with the through holes in position. Film tearing efficiency is improved, and potential quality hazards caused by manual operation are avoided.

The invention discloses a multifunctional hardware hammer. The multifunctional hardware hammer comprises an inner sleeve, an outer sleeve, a hammer handle and a hammer head. The inner sleeve is slidably arranged on the outer side wall of the hammer handle in a sleeving mode. The outer sleeve is arranged on the outside of the inner sleeve. A groove is formed in the outer side wall of the hammer handle. A wrench bar is movably connected with the left end of the groove through a movable shaft. The end, far away from the movable shaft, of the wrench bar is fixedly connected with a wrench sleeve. Two connecting plates are sequentially and fixedly connected with the front side and the rear side of the left side of the hammer handle. The hammer head is arranged on the left side of the hammer handle. Two annular inserting slots are formed in the inner side of the hammer head. The annular inserting slots are mutually connected with the connecting plates in an inserted mode. The hammer head is uniformly provided with a plurality of threaded rods in the circumferential direction in a penetrating mode. The parts, penetrating out of the hammer head, of the two sides of each threaded rod are connected with nuts in a threaded mode. The multifunctional hardware hammer is simple in structure and reasonable in design, the vibrations that hammering generates can be effectively reduced, the lengthcan be adjusted, and meanwhile, the hammer head and the hammer handle are firmly connected, so that a potential safety hazard is reduced.

The invention discloses an adjustable passive hydraulic oil cylinder which comprises a main body, a piston, a side pressing cavity, a buffer cavity, a side pressing oil path, a buffer oil path, a control oil path and an overflow adjusting device; and the overflow adjusting device comprises a valve core, a spring and a double-screw bolt which lean against one another successively, and the amount ofcompression of the spring can be adjusted by rotating the double-screw bolt. By implementing a side pressing process, the piston driven by a side pressing counteraction force moves upward, so that the oil pressure in the side pressing cavity is increased; when the elastic force of the spring is overcome by the oil pressure and the valve core moves, and the side pressing oil path is conducted, sothat oil in the side pressing cavity flows into the buffer cavity; and after side pressing, the piston moves downward to compress the buffer cavity, so that oil in the buffer cavity returns to the side pressing cavity through a buffer oil path. The oil pressure in the side pressing cavity conducts the side pressing oil path by overcoming the elastic potential energy of the spring, and the amount of compression of the spring is adjusted by rotating the double-screw bolt, so that the side pressing vigor can be controlled, and therefore, the service life of the device is prolonged.