99results about How to "Avoid accidental breakage" patented technology

Pyloric valve corking devices are disclosed herein that generally include an occluding member, expanding from a first configuration to a larger second configuration, and a bridging member extending from the occluding member. The bridging member has a length that is adapted to pass at least partially through the gastric opening, so to enable the occluding member to obstruct the gastric opening, and that is also adapted to permit the occluding member to intermittently move relative to the gastric opening. A second occluding member may be attached to the distal end of the bridging member. The reduction in flow of gastric contents into the duodenum can be actively regulated using a pump or valve, or can be passively regulated with movements of the occluding device.

The invention discloses a worm wheel-worm lead screw transmission type two-way stretch test machine, which is characterized by consisting of a rack, a loading power module, a sensor module and a clamping module, wherein the entire loading power module is fixedly arranged on the rack, two clamping heads of the clamping module penetrate through two stretch movement blocks of the loading power module respectively, and a dynamometer and a displacement sensor in the sensor module are also fixed on the loading power module; and after a test sample is fixed on the clamping heads, a motor in the loading power module rotates to drive a worm wheel and a worm, the worm wheel drives two reversed screw-thread ball screws respectively to further drive the two stretch movement blocks to move in opposite directions so as to achieve stretch or compression of the test sample, and stress values and displacement amounts of the test sample during stretching are acquired respectively by virtue of the dynamometer and the displacement sensor in the sensor module. The two-way stretch test machine disclosed by the invention can achieve stretch of small-size samples of a material, thereby assisting research of mechanical properties of a micro-nano structure of the material.

A pill crusher pouch having ribs and intersecting straight bottom seal portions. The pill crusher pouch is used for holding a pill or tablet to be crushed by a pill crusher device so as to form a powder that can easily be dispensed and provided to a patient. The ribs increase the strength of the walls of the pouch, preventing rupture. In one embodiment, the ribs have a fiber material therein, increasing the strength. A bottom seal of the pouch is formed by straight portions intersecting at obtuse angles increase the strength of the bottom seal and permitting more complete dispensing of the powdered pill. The substantially straight portions increase strength and the obtuse angles prevent a portion of the powdered pill from being trapped within the pill pouch, thereby providing for substantially complete dispensing of the powdered pill. The strength of the pill pouch is improved preventing unintentional rupturing, that could result in possible contamination or improper dosing of the medicament contained within the pill.

A single use rigid package containing pharmaceutical compositions which protects tablets, capsules, soft shell pills against hard transporting conditions and undesired rupture. The package comprises at least four sections made from a single sheet foldable into a folded configuration. At least two sections are carrier sections pivotally connected to each other and each comprising cavities for housing pharmaceutical compositions. Two sections are end sections not comprising cavities, the end sections being foldable to adjacent and at least partly covering the carrier sections when the sheet is folded so as to protect the carrier sections. The package allows for personal transportation, e.g. in a pocket, and it is easy and convenient to open for people of all levels of ability and dexterity. Its design allows for transport as standard mail withstanding temperature fluctuation, vibrations and shocks, mechanical pressure and variation in atmospheric pressure which may occur during transport.

The invention discloses a sensing head of an all-fiber current transformer. Grooves are respectively formed in an upper cover of the sensing head and a lower cover of the sensing head; a sensing optical fiber, an all-fiber one-fourth wave plate and an optical fiber end surface reflecting mirror form an optical fiber sensing part of the all-fiber current transformer by a welding mode; the optical fiber sensing part is uniformly wound on a sensing framework in a spiral manner; the sensing framework wound with the optical fiber sensing part is placed in the groove of the lower cover of the sensing head and integrally packages the upper cover of the sensing head with the lower cover of the sensing head; a lead head which is internally provided with a lead hole is processed in the upper cover of the sensing head; and a polarization-preserving optical fiber is used as a lead-out end of the sensing head of the all-fiber current transformer, is partially connected with the optical fiber sensing part and is led out of the lead hole. According to the sensing head disclosed by the invention, various negative influences such as linear birefringence, Verdet constant temperature effect and one-fourth wave plate phase delay temperature effect of the optical fiber sensing part can be effectively eliminated.

The invention discloses an automatic young fruit bagging machine. The automatic young fruit bagging machine comprises an upper press fit frame and a fork plate device, wherein the upper press fit frame comprises a pressing fork; one end of the pressing fork is hinged to a frame; a pressure plate is arranged at the other end of the pressing fork; the pressure plate is arranged above the fork plate device; a bag storing box is arranged below the frame; an automatic bag loading device is arranged in the bag storing box; an automatic bag feeding device is arranged at the upper end of the bag storing box; a handle is arranged above the frame; the handle is provided with a control switch; the fork plate device is provided with two fork plates stretching in a V shape; one end of the pressing fork is fixedly connected with a stay cord; the stay cord is connected to a driving wheel at the back end of the frame after crossing a driven wheel; the driving wheel is driven by a motor; the control switch is used for controlling the motor to rotate forwards or backwards. By adopting the automatic young fruit bagging machine, automatic press fit bagging can be realized, thereby increasing the bagging efficiency, and lowering the labor intensity; a V-shaped opening design is adopted at the front end of the fork plate device, so that the problem of fracture of fruit stems in a bagging process is effectively solved.

A floating fastener mounting structure and method is disclosed to include a metal panel member defining a convex wall portion and a mounting through hole at the convex wall portion, a mounting socket defining a center hole, an annular step around the outer perimeter and an annular locating groove around the outer perimeter and at the bottom side of the annular step and being riveted to the metal panel member to force the annular locating groove into engagement with the convex wall portion tightly, a spring member mounted in the mounting socket, and a lock screw floatably supported on the spring member in the mounting socket for detachably locking the metal panel member to an external metal panel member.

The invention relates to a torque force spanner provided with a control unit, which comprises a body unit, a handle unit which is rotatably arranged on a pipe part and provided with at least one actuating hole and one clamping hole, a control ring, an elastic element arranged between the control ring and the handle unit, and at least one control unit, wherein the pipe part is provided with a plurality of shallow grooves; the control ring is provided with an inner annular surface, at least one abdicating groove which is concavely arranged on the inner annular surface and two positioning grooves which are concavely arranged on the inner annular surface; and the elastic element is provided with a first end part which presses a limit piece on the pipe part, a clamping part which is clamped with the clamping hole and a positioning part. When the control ring is at a first position, the abdicating groove is corresponding to the first end part, the inner annular surface is away from the first end part, and the positioning part is connected with one of the positioning grooves; and when the control ring is at a second position, the abdicating groove is separated from the first end part, the inner annular surface is close to the first end part, and the positioning part is connected with the other positioning groove. Through the rotary switch of the control ring of the control unit, the torque force spanner not only has the advantages of convenient and fast operation and definite positioning, but also can prevent the control unit from accidentally breaking.

Disclosed herein is an injection molding die used for producing a frame-mounted plate glass by injection molding. The die is characterized in that an auxiliary cavity is provided at a position to exposed a surface of a plate glass and communicated with a cavity for a frame through a communication opening, the cavity for the frame being provided at position facing a vehicle inside surface of the plate glass. When the die is practically used for injection molding, a load applied to a peripheral portion of the plate glass during the injection molding is reduced, so that when the frame is molded onto the plate glass by injection molding, undesired breakage of the plate glass is suppressed.

The invention discloses a vertical two-side tire ring cutting machine. A fixed box and a movable box are arranged on a base; the upper part of the fixed box is provided with an expansion rack assembly; the expansion rack assembly is driven by a swing drive unit and revolves with a main shaft as an axis; two groups of cutting knife assemblies are respectively arranged at opposite sides of the front parts of the fixed box and the movable box through plankers. According to the invention, a vertical two-side tire ring cutting structure is adopted, an operator does not need to transport a tire or adjust the position of the tire during feeding and blanking; cutting knives at left and right sides can simultaneously cut two sidewalls of the tire, so work efficiency is greatly improved, and labor intensity of workers is reduced; the diameter of the expansion rack assembly is in a range of 200 to 550 mm, so the expansion rack assembly is flexibly applicable to tires of a plurality of sizes in a range of 800 to 1800 mm and has good compatibility and a wide application scope; and the cutting knives are easy to adjust and position and can safely and conveniently cut rubber rings of a plurality of diameters.

The invention relates to a medical syringe. The medical syringe comprises a core rod, a piston and a cylinder. An opening used for connecting the core rod is formed in one end of the cylinder, and a conical head used for connecting a needle is arranged at the other end of the cylinder. One end of the core rod is fixedly connected with the piston and is movably inserted into the cylinder. The outer diameter of the piston is the same as the inner diameter of the cylinder. A housing fixed to one end of the cylinder is arranged on the circumferential side of the conical head. A core rod head sleeve used for protecting the conical head is arranged in the housing. A connection groove matched with the core rod head sleeve is formed in the other end of the core rod. The core rod and the core rod head sleeve are connected through the connection groove, and the function of driving the core rod to move is achieved. A clamping groove used for storing the needle is formed in the surface of the cylinder. The medical syringe has the advantages of being simple in structure, convenient to use, capable of improving the use safety and effectively protecting the conical head and the needle, and the like.

The invention discloses a high-strength and high-toughness cast steel resistant to abrasion and corrosion in high temperature and used for an incinerator fire grate and a preparation method thereof. The high-strength and high-toughness cast steel resistant to abrasion and corrosion in high temperature and used for the incinerator fire grate comprises, by weight percentage, 0.18%-0.42% of C, 0.8%-2.0% of Si, 0.5%-1.2% of Mn, 15%-25% of Cr, 0-0.015% of P, 0-0.01% of S, 1.5%-3.5% of Al and 0.005%-0.02% of RE. When C is smaller than 0.25% and Cr is smaller than 20%, the high-strength and high-toughness cast steel further comprises 0.05%-0.25% of Nb and 0.05%-0.25% of Ti. The high-strength and high-toughness cast steel is prepared by the steps of sorting, smelting, refining, deoxidation, modification fining, casting and the like. The cast steel has the good casting molding performance and machining performance, high strength, good ductility and toughness, superior abrasion and corrosion resistance in high temperature, low production cost and long service life, and is especially suitable for large mechanical reciprocating grates of municipal refuse incinerators in China.

A portable work and storage container includes a container frame, an enclosure arrangement and a wall panel affixing arrangement. The container frame includes a ceiling frame, a floor frame and four vertical corner posts spacedly extended between the ceiling frame and the floor frame. The wall panel affixing arrangement includes a plurality of wall adjusters and a plurality of wall lockers, wherein every two of the wall adjusters are adjustably extended to bias against two outer side rims of the wall structure respectively for applying a pushing force so as to ensure the wall panels of each of the wall structure are coupled with each other side-by-side. The wall lockers are adjustably engaged with top rims of the wall structures respectively to lock up the wall structures between the ceiling frame and the floor frame so as to securely retain the wall.

A floating fastener mounting structure includes a metal panel member defining a convex wall portion and a mounting through hole at the convex wall portion, a mounting socket including an axially extended center hole, an annular step and a stop flange extended around the periphery at different elevations and an annular locating groove defined between the annular step and the stop flange. The mounting socket is riveted to the metal panel member to force the annular locating groove into engagement with the convex wall portion, enabling the convex wall portion to be tightly stopped between the annular step and the stop flange. The annular step defines a downwardly and outwardly sloping top surface for guiding the convex wall portion of the metal panel member into engagement with the annular locating groove of the mounting socket in the rivet operation.

A needling machine frame with the function of guiding and supporting needle plates belongs to the technical field of non-woven machinery. Including the bottom box body, the middle column box body and the bottom box beam, a pair of middle column box bodies are arranged on the top of a pair of bottom box bodies, and needle plate relief chambers are respectively set on the pair of middle column box bodies , the bottom box beam is fixed between a pair of bottom box bodies, a crankcase body is arranged above the pair of middle column box bodies, and a needle beam is arranged below the crankcase body, and the needle beam and Connected by the crankshaft link mechanism, a needle plate is set under the needle beam, the two sides of the needle plate in the length direction are fixed to the needle beam, and the end of the needle plate corresponds to the relief cavity of the needle plate. Needle plate guiding and supporting mechanisms are respectively arranged on the box body and corresponding to the positions of the needle plate abdication cavity. Reduce manpower input, lighten operation intensity, improve efficiency; prevent accidental breakage of needle plate, avoid economic loss and avoid injury to operators; ensure operation safety.

The invention discloses a guardrail capable of being spliced and being easy in maintenance for highway engineering. The guardrail comprises a bottom plate, wherein the upper side of the bottom plate is provided with a cross bar; the top end of the bottom plate is in threaded connection with a plurality of vertical rods at equal intervals; the top ends of the plurality of vertical bars are independently clamped and connected with the bottom end of the cross bar; the front sides of three vertical bars are provided with a notice board; two sides of the front side of the prompt board are independently fixedly embedded with a solar cell panel; two sides of the back side of the prompt board are independently fixedly connected with a water storage tank; a water inlet is dug on one side of the topend of each water storage tank; and two sides of the bottom end of the cross bar are independently fixedly connected with a fixing plate. The guardrail capable of being spliced and being easy in maintenance for highway engineering is provided with the cross bar, the plurality of vertical bars and a base, can be quickly assembled, is convenient in maintenance and transportation and greatly improves installation and maintenance efficiency. A plurality of cylindrical water storage cavities and human body proximity switches are arranged and are cooperated with two water storage tanks, a water suction pump and a first atomization shower nozzle, so that the approaching of people can be identified, and water sprays are automatically sprayed to remind pedestrians and prevent pedestrians from going through the guardrail at will.

The invention discloses an egg rack assembly used for a refrigerator and a refrigerator with the egg rack. The refrigerator comprises a refrigerator body and a door body. The egg rack assembly comprises a tray and an egg rack, wherein the rear side and the top part of the tray are opened, the front side of the tray is fixed on the door body, and the tray is provided with a first positioning piece; the egg rack is provided with a plurality of egg holes used for arranging eggs, and a second positioning piece is arranged at the bottom of the egg rack and can be magnetically matched with the first positioning piece so as to arrange the egg rack on the tray. According to the egg rack assembly of the embodiment of the invention, when a user needs to take more eggs, the egg rack can be taken out from the rear part of the tray, the egg rack can be taken out simply, is convenient to operate and is labor-saving when being taken, and in the egg rack assembly, the egg rack taking mode is different from a traditional taking mode, so that the size of the egg rack can be closer to that of the tray, so that the storage space in the refrigerator can be utilized sufficiently, and the practicability is good.

The invention relates to the technical field of petroleum drilling and well cementing, in particular to a double-seal enclosed universal shaft. The double-seal enclosed universal shaft comprises an enclosed connecting rod, wherein the upper end and the lower end of the enclosed connecting rod are connected with universal joints with the same structures respectively; the universal joints comprise movable hinges, locking sleeves, clamping rings, ball seats, transmission columns, ball heads, fixed hose clamps, sealing sleeves and rectangular sealing rings; the ball seats are fixed to the bottoms of the inner cavities of the movable hinges; the ball heads are matched with the ball seats; a rolling groove is formed around the end part of the enclosed connecting rod in the circumferential direction; the transmission columns are arranged between the rolling groove and the inner cavities of the movable hinges; the rectangular sealing rings are arranged between the rolling groove and the inner cavities; the bottoms of the rectangular sealing rings are fixed through the clamping rings; the locking sleeves are in threaded connection with the movable hinges; the bottoms of the locking sleeves are used for positioning and fixing the clamping rings and the rectangular sealing rings. The double-seal enclosed universal shaft has the advantages of simple structure, easiness in machining and assembly, convenience in accessory replacement, long service life and low production cost.

The invention relates to a medical injector. The medical injector comprises a mandrel, a piston and a barrel body; one end of the barrel body is equipped with an opening for connecting the mandrel, and while the other end of the barrel body is equipped with a cone head for connecting a needle; one end of the mandrel is fixedly connected with a piston and can be movably inserted into the barrel body; the outside diameter of the piston is equal to the inside diameter of the barrel body; a mandrel head sleeve is fixedly connected to the mandrel; a mounting trench for storing the needle is arranged in the mandrel; a protecting layer for protecting the needle is arranged on the inner wall of the mounting trench. The medical injector has the characteristics of being simple in structure, convenient to use, and high in safety in use.

The invention provides a fire grate and a manufacturing method of the fire grate. The fire grate is made of stainless steel composed of, by weight, 1.6 percent to 2.0 percent of C, 1.5 percent to 2.0 percent of Si, 0.8 percent to 1.0 percent of Mn, 28 percent to 30 percent of Cr, 1.5 percent to 3.0 percent of Ni, 1.0 percent to 1.5 percent of Mo, 0.8 percent to 1.5 percent of Cu, 0.4 percent to 1.0 percent of V, 0.15 percent to 0.2 percent of Ti, 0.1 percent to 0.15 percent of Re, 0.0 3 percent to 0.05 percent of B, no more than 0.03 percent of P, no more than 0.03 percent of S and the balance Fe. The fire grate is manufactured through the procedures of material selecting, drying, smelting, pre-deoxygenation, sampling analysis, final deoxygenation, alloying, deslagging and pouring. The fire grate has the advantages of being high in strength, not prone to breaking, good in abrasion resisting performance, resistant to corrosion, long in service life, simple in manufacturing process and the like.

A floating fastener mounting structure includes a metal panel member defining a convex wall portion and a mounting through hole at the convex wall portion, a mounting socket including an axially extended center hole, an annular step and a stop flange extended around the periphery at different elevations and an annular locating groove defined between the annular step and the stop flange. The mounting socket is riveted to the metal panel member to force the annular locating groove into engagement with the convex wall portion, enabling the convex wall portion to be tightly stopped between the annular step and the stop flange. The annular step defines a downwardly and outwardly sloping top surface for guiding the convex wall portion of the metal panel member into engagement with the annular locating groove of the mounting socket in the rivet operation.

The invention discloses an automotive tire antiskid device and a mounting method thereof. The automotive tire antiskid device comprises a plurality of rivet unit assemblies and two fixed steel cable assemblies, the rivet unit assemblies are connected end to end to form circles fitting the circumferences of automotive tires, the fixed steel cable assemblies are arranged on the front and rear sidesof the rivet unit assemblies, and are separately hang and fixed to the rivet unit assemblies in a tightening mode; the rivet unit assemblies comprise middle inserted rods, adjusting sleeving rods, left hinged seats, right hinged seats, jointed connecting rods, side hinged seats, hook connecting rods, fixed hook plates and anti-skid rivets; and the fixed steel cable assemblies comprise steel cablebodies, binding blocks, fixed blocks, jacking screws and limiting blocks. The automotive tire antiskid device and the mounting method thereof can be applied to a plurality of types of tires, originalbuffering and damping functions of the tires are not interfered, the operation is simpler and more efficient, accidental snap and falling off can be prevented, and road safety is ensured.

An improved Air Traffic Control Tower cab window shade system is presented, utilizing a faster motor than in prior art ATCT applications. The present invention's motor operates at 80 rpm and raises the shade material at 9.62 inches per second on a 2.3-inch diameter roller tube. This allows an average 8 foot high shade to fully raise in 10 seconds. The shade is half raised in about 5 seconds.The improved speed is due to a spring box at the bottom end of the shade, providing constant tension to the shade and permitting the shade to be retracted safely at higher speed without risking scratching the cab window glass.

An internal storage and distribution pipe structure for an oil inlet pipe and an oil outlet pipe of an oil cylinder of a column type tablet machine comprises an upper fixed plate, a lower fixed plate, guide stand columns, an oil cylinder, high-pressure oil pipes and a hydraulic station. The two ends of each guide stand column are fixed to the upper fixed plate and the lower fixed plate respectively. The two high-pressure oil pipes on the oil cylinder are connected with the hydraulic station in a sealed mode. At least one guide stand column is of a hollow pipe structure. The high-pressure oil pipes penetrate through the hollow guide stand columns to be connected with the hydraulic station in a sealed mode. The two high-pressure oil pipes of the oil cylinder are changed to be distributed in an internal storage mode from the exposed mode. The attractiveness of the whole tablet machine is improved, the arrangement space of dies and other parts of the table machine is enlarged, and hurting accidents of high-pressure oil leakage generated when the high-pressure oil pipes are broken are eliminated. The internal storage and distribution pipe structure can ideally overcome all the defects, caused by the exposed arrangement of the high-pressure oil pipes of the hydraulic cylinder, of an existing tablet machine.

The invention discloses a safety injection needle which comprises an injection needle body. A needle base is arranged at one end of the injection needle body, a needle tube is mounted at one end of the needle base, an internal protecting sleeve is mounted on the outer wall of the needle tube, an outer wall sleeve is mounted on the outer wall of the internal protecting sleeve, the needle base is movably connected with a rotary protecting sleeve through a connecting limit block, a connecting shaft is arranged between the rotary protecting sleeve and the connecting limit block, an internal cavityis formed in the rotary protecting sleeve, an outer wall layer is arranged on one side of the rotary protecting sleeve, a rotary limit block is arranged on one side of the outer wall layer, a first fixed shaft is arranged at one end of the internal cavity, a second fixed shaft is arranged at the other end of the internal cavity, a friction block is arranged at one end of the second fixed shaft, and the outer wall sleeve is arranged on the outer wall of the internal protecting sleeve. The needle tube can be effectively protected by the outer wall sleeve and the internal protecting sleeve and can be conveniently prevented from being accidentally broken while sanitation of the needle tube is protected, and the injection needle body can be protected from damage before use by the aid of the rotary protecting sleeve.

A multi-layered electronic system has a support substrate including at least a primary conductive track; a security layer including at least a conductive security track; an electrically-conductive engagement element in electrical communication with the primary conductive tack, and to which the security layer is mounted so that the conductive security track is in permanent electrical communication with the primary conductive track; and a flexible cover layer which overlies the security layer and which is directly or indirectly secured to the support substrate. The electrical connection between the security layer, conductive engagement element and primary conductive track is interrupted when the conductive security track is broken.

The invention relates to an electric top spiral amplitude nut, which is formed by tightly combining an outer threaded sleeve made of iron materials and an inner nut made of nylon or copper materials. A fixing pin is arranged between the inner nut and the outer threaded sleeve; and a thread on the joint of the outer threaded sleeve and a screw is in a half-tooth type. As the outer threaded sleeve and the inner nut are made of two different materials, and the inner nut is made of the MC nylon or the copper materials in particular, the spiral amplitude nut decreases the friction force with the screw, lowers working current, ensures that the working current of a single motor drops to 12 A and is close to the working current when a ball feed screw nut is used, and saves material cost as well as electricity consumption.

The invention relates to petroleum drilling high-strength alloy structural steel, which comprises the following components in percentage by weight: 0.28-0.36% of C, less than or equal to 0.50% of Si,less than or equal to 0.80% of Mn, 1.40-2.40% of Cr, 1.0-2.4% of Ni, 0.50-1.00% of Mo, less than or equal to 0.20% of V, less than or equal to 0.050% of Nb, less than or equal to 0.040% of Al, less than or equal to 0.020% of P, less than or equal to 0.010% of S, and the balance of Fe and inevitable impurities. Drill rods and transmission shafts manufactured by adopting the petroleum drilling high-strength alloy structural steel have the advantages of excellent alloy element proportion, pure steel, uniform structure, high strength, good toughness, high fatigue strength and excellent comprehensive performance. The petroleum drilling high-strength alloy structural steel solves the problems of low strength, poor fatigue strength, short service life and high possibility of accidental breakage when encountering a complex geological structure of the conventional commonly-used drill rod and transmission shaft materials in China, the service life of the drill rods and the transmission shafts isgreatly prolonged, accidental breakage is avoided, the production efficiency is improved, and the production cost is saved.