591results about How to "Not easy to slip off" patented technology

The invention discloses a tissue clamping member of a linear cutting anastomat and a nail granary of the tissue clamping member. The left side and the right side of a nail discharging surface of the nail granary are respectively provided with one column of barrier bars and barrier bulges, which are parallel to a knife pushing groove, and the front end part of a nail supporting surface of a nail supporting base of the tissue clamping member is provided with one row of semi-spherical concave holes along the left-right direction. During the use, the barrier bulges apply an acting force with the direction which is opposite to the advancing direction of a cutting knife to the clamped human body tissue, the two columns of barrier bars apply leftwards and rightwards acting forces which have the direction opposite to the advancing direction of the cutting knife and face outside to the clamped human body tissue, therefore the clamped tissue is stable and firm without slipping, wherein the left column of barrier bar applies to a leftwards acting force to the human body tissue and the right column of barrier bar applies to a rightwards acting force to the human body tissue, therefore, the clamped tissue is tightened, and the cutting knife carries out cutting more smoothly when advancing forwards.

The invention discloses spun-laced cloth and a method for manufacturing the spun-laced cloth. The spun-laced cloth is composed of collagen fiber bundles, other textile-used staple fibers and interstitial fibers, wherein the collagen fiber bundles are mutually interpenetrated and interweaved with branches of the collagen fiber bundles to form stereo reticular braided structures, other textile-used staple fibers are located on skeleton of the stereo reticular braided structures, reticular entwining is formed between the textile-used staple fibers mutually or between the textile-used staple fibers and the collagen fiber bundles and the branches of the collagen fiber bundles, and fiber is adhered or bound by the interstitial fibers. The method of the invention can take animal raw hide as raw materials and can be realized through following technical steps: screening the raw materials, dipping, unhairing, degreasing, defibering liquid, tanning, dewatering and drying, mixed liganding, adding the interstitial fibers, health preserving, opening, combing,laying net, spunlacing, and hot rolling, furthermore, the method of the invention can also take the animal leather after tanning as the raw material and can be realized through following steps: screening the raw materials, dipping, defibering the liquid, dewatering and drying, mixed liganding, adding the interstitial fibers, health preserving, opening, combing, laying net, spunlacing, and hot rolling.

The invention provides a stacking technology for cargo, and a logistic stacking machine. The logistic stacking machine includes a cargo conveying platform, a cargo conveying platform horizontal movement drive device, a cargo conveying platform vertical movement drive device, a cargo shelf for storing cargo, a limiting sensor and a PLC; the limiting sensor is connected to the PLC; the cargo conveying platform vertical movement drive device is arranged on the cargo conveying platform horizontal movement drive device; the cargo conveying platform is fixed on the cargo conveying platform vertical movement drive device; the limiting sensor is used for detecting spatial position information of the cargo conveying platform, and transmitting the detected spatial position information of the cargo conveying platform to the PLC; and the PLC controls the cargo conveying platform vertical movement drive device and the cargo conveying platform horizontal movement drive device to achieve forward and backward movement and vertical movement of the cargo conveying platform. The logistic stacking machine is simple in structure, is high in working efficiency, is stable in performance, and can achieve mechanical and automatic cargo conveying.

The invention discloses medical gel. The medical gel is prepared from, by mass, 10-50 parts of magnesium sulfate, 0.01-10 parts of plant extract, 0.5-15 parts of glycerinum, 0.1-5 parts of ethyl alcohol, 3-20 parts of a hydrophilic polymer material, 0.1-15 parts of solubilizer and the balance purified water. The invention further discloses medical gel paster for external use and prepared through the medical gel and a preparation method of the medical gel paster for external use. By combining magnesium sulfate and the hydrophilic polymer material, the medical gel paster effectively avoids the problem that a magnesium sulfate solution wets clothes of a patient and a bed sheet; in the use process, the gel paster is high in adherency stability and is not prone to sliding down and does not affect motion of the patient; using is convenient, and pasting and uncovering can be carried out over and over again; plant extract is selected elaborately, anti-bacteria skin protection components are added and have no irritation to the human body, using is safe, the effects can be achieved quickly, and the curative effect is good.

The invention relates to a hydraulic engineering pipe fitting stacking industrial robot. The hydraulic engineering pipe fitting stacking industrial robot comprises a traveling device, an adjustable support, a rotary device, a three-degree-of-freedom parallel mechanism and a clamping device; the adjustable bracket is located on the rear upper side of the traveling device; the rotary device is located in the front end position of the adjustable support, and is fixedly connected with the adjustable support; the three-degree-of-freedom parallel mechanism is located between the rotary device and the clamping device; the upper end of the three-degree-of-freedom parallel mechanism is connected with the rotary device; and the lower end of the three-degree-of-freedom parallel mechanism is connected with the clamping device. The hydraulic engineering pipe fitting stacking industrial robot can realize a series of operation including grabbing, carrying and stacking of water conservancy and hydropower pipelines, is high in automation degree and stable and flexible in motion, solves such problems as high manual carrying operation cost, low efficiency and high dangerousness, the horizontal interval and vertical interval of the clamping device are adjustable, thereby facilitating grabbing of the water conservancy and hydropower pipelines with different diameter sizes, grabbing and stacking are convenient and rapid, clamping is stable and firm in the carrying process, slipping is not easy to occur, and the safety is good.

The invention provides a device using a closed replaceable packaging bag. The device comprises a base and a container housing, wherein a bracket used for fixing the packaging bag is arranged on the base; the container housing is detachably assembled on the base and defines an inner cavity used for accommodating the packaging bag; the bracket is constructed for clamping the upper end part of the packaging bag and enabling the package bag to be basically and vertically accommodated in the inner cavity of the container housing, and is provided with a through hole part for allowing an air cylinder pipe of a liquid pump to be inserted into the vertical packaging bag in a puncturing manner from above while the packaging bag is clamped; the through hole part forms a through hole for the passing of the air cylinder pipe. The invention further provides the closed replaceable packaging bag suitable for the device. By the device and the replaceable packaging bag, the leakage of the packaging bag during replacement and use can be effectively prevented and the operation convenience of a user is guaranteed.

The invention relates to a full-automatic hydraulic and hydroelectric engineering drain pipe clamping integrated machine. The full-automatic hydraulic and hydroelectric engineering drain pipe clamping integrated machine comprises a walking device, an adjustable support, a rotation device, a delta parallel mechanism and a clamping device. The adjustable support is located above the rear portion of the walking device. The rotation device is located at the position of the front end of the adjustable support. The rotation device is fixedly connected with the adjustable support. The delta parallel mechanism is located between the rotation device and the clamping device. The upper end of the delta parallel mechanism is connected with the rotation device. The lower end of the delta parallel mechanism is connected with the clamping device. By means of the full-automatic hydraulic and hydroelectric engineering drain pipe clamping integrated machine, a series of operation such as grabbing, carrying and stacking of water conservancy and hydropower pipelines can be achieved, the automation degree is high, movement is steady and flexible, the operation efficiency is high, and the problems that the manual carrying operation is high in cost, low in efficiency, large in dangerousness and the like are solved.

The invention discloses a pair of operating forceps with a negative pressure suction function. The pair of operating forceps comprises forcep handles, forcep levers and a forcep head, wherein the forcep handles are connected with the forcep head through the forcep levers; the forcep head comprises a main claw and an auxiliary claw hinged to the main claw; the forcep handles comprise a fixed handle and a movable handle hinged to the fixed handle; a connector connected with a negative pressure system is arranged on the fixed handle, a handle negative pressure channel communicated with the connector is arranged in the fixed handle in a hidden manner, a lever negative pressure channel communicated with the handle negative pressure channel is arranged in one forcep lever, and a head negative pressure channel communicated with the lever negative pressure channel is arranged in the main claw in a hidden manner; a negative pressure hole communicated with the head negative pressure channel is further formed in the main claw; the fixed handle, the corresponding forcep lever and the main claw are sequentially fixedly connected; the movable handle is connected with the auxiliary claw through a pull rod penetrating through an inner cavity of one forcep lever, and the movable handle pulls the pull rod to control the auxiliary claw and the main claw to be closed and opened. According to the technical scheme, tissue can be clamped under the joint action of mechanical clamping and negative pressure clamping, and the pair of operating forceps has the advantages of controllability of clamping force, little damage to tissue, adaptability to various soft tissue organs, safe and precise operation and the like.

The invention relates to an omni-directional water conservancy steel pipe mounting robot which comprises a walking device, an adjustable support, a rotating device, a parallel-series mechanism and a clamping device. The adjustable support is located above the rear portion of the walking device. The rotating device is located at the front end of the adjustable support and fixedly connected with the adjustable support. The parallel-series mechanism is located between the rotating device and the clamping device, the upper end of the parallel-series mechanism is connected with the rotating device, and the lower end of the parallel-series mechanism is connected with the clamping device. According to the omni-directional water conservancy steel pipe mounting robot, a series of work of grabbing, carrying, stacking and the like of water conservancy and hydropower pipes can be achieved; the automation degree is high, movement is stable and flexible, and work efficiency is high; and the problems that manual carrying work is high in cost, low in efficiency and large in dangerousness are solved.

The invention discloses a low-filling high-performance nanomontmorillonite-reinforced polypropylene composite material and a preparation method thereof. The low-filling high-performance nanomontmorillonite-reinforced polypropylene composite material comprises the following components in parts by weight: 80-90 parts of polypropylene, 5-8 parts of modifying montmorillonite, 4-10 parts of a compatilizer, 0.2-0.5 part of an antioxidant, 0.3-0.6 part of a lubricating agent and 0-3 parts of other auxiliaries. According to the low-filling high-performance nanomontmorillonite-reinforced polypropylene composite material prepared by the preparation method provided by the invention, by a melting intercalation method, a polymer is inserted into spaces between montmorillonite layers and thus the montmorillonite is dispersed into the polymer in a layered structure, so that a similar fiber enhancement role can be played; in addition, a grafting reaction can also be performed on double bonds in a modifier and main chains of the polypropylene, the montmorillonite layers are splayed out by heat released during the grafting reaction, and through chemical bonding of grafts and polymer molecule, the montmorillonite layers are forcibly dispersed uniformly in the polymer matrix so as to form an intercalated nanocomposite material, so that the low-filling high-performance nanomontmorillonite-reinforced polypropylene composite material has excellent mechanical properties, and thus the application range is widened.

The invention discloses a branch sediment sampling support. The sampling support comprises a supporting mechanism, a rotating mechanism and a telescopic extension rod; the supporting mechanism comprises a main supporting rod and three auxiliary supporting rods, wherein the auxiliary supporting rods are movably hinged to the lower part of the main supporting rod through a first sleeve connecting part; the auxiliary supporting rods and the main supporting rod are fixed through movable cross bars; a pedal rod is arranged on the main supporting rod; the rotating mechanism comprises a base, a rotating disc, a plurality of balls and a ball fixing ring; the telescopic extension rod comprises a first support rod body and a second support rod body; a reel is arranged on the side, close to the rotating mechanism, of the first support rod body; a bidirectional ratchet mechanism is arranged at the end part of the reel; a pulley is arranged at the outer end of the second support rod body; one end of a pull rope is fixed to the reel; the other end of the pull rope is wound around the pulley and then is vertically and downwards connected to a sediment sampler. The branch sediment sampling supporthas the advantage of being capable of effectively assisting a sampling person in collecting underwater sediments in a branch or a channel at the positions about 2 meters offshore when no ship or bridge exists.

The invention discloses a BIM-based (building information modeling based) internal cladding and external connecting beam or column. An active connector is fixed to an end of the beam or column in a sleeving manner, and / or a passive connecting structure is arranged on the side wall of the beam or column; the front end face of an active connector body is provided with an n-shaped hook, and a connecting flange is disposed at an edge of the front end face; the passive connecting structure is provided with a cladding hole in the sidewall of the beam or column or passive connector, and the cladding hole matches with the n-shaped hook. The hook is in a wedged structure or the cladding hole is in a wedged structure so that the beam and column are mounted by opposite inserting, the beam and the column extrude each other for tight attachment after sliding down under the gravitational action, and field connection is very quick without manual centralizing or added accessories for work. The beam and column positioned and compressed are connected through a flange and can be fixedly connected by using tapping screws or traversing bolts or by welding. Two supporting modes hook supporting and flange supporting are present, improving connection strength of the beam and column. The beam or column is simple in structure, very quick to construct in situ and suitable for popularization and implementation.

The invention discloses thin-wall inner flanging C-shaped steel truss connectors and a composite truss. The composite truss comprises inner flanging C-shaped steel and the truss connectors. Inner flangings are arranged on side plates on the two sides of the inner flanging C-shaped steel respectively. The inner flanging C-shaped steel is inwards inserted into the outer sides of the truss connectors from the ends of the connectors respectively in a sleeving mode. The inner flanging C-shaped steel covers the outer sides of the truss connectors, and inner flangings are inserted into corresponding receding holes in a matched mode. Rear pressing grooves are formed in the surface of the inner flanging C-shaped steel and sleeved with stamped or punched positioning grooves in a matched mode. Steel belts are tied to the outer side of the inner flanging C-shaped steel, and the inner flanging C-shaped steel and the truss connectors are fixed together. The single inner flanging C-shaped steel is quickly and firmly in butt joint in an intersecting mode, or combined square steel is quickly and firmly in butt joint in an intersecting mode. The truss connectors are provided with webs, strength is high, and the truss connectors can serve as standard connecting pieces. The receding holes formed in the inner sides of the truss connectors and the inner flangings of the inner flanging C-shaped steel are buckled and compressed together, and the internal and external embedding effect is achieved. The positioning grooves formed in the outer sides of the truss connectors can be embedded in the inner flanging C-shaped steel in a concave-and-convex mode, and after compression and fixation are conducted through fastening of the steel belts, the fixing and anti-slipping effects are achieved.

The invention discloses a wool drafting and thinning technique. The wool drafting and thinning technique comprises the following steps of: pre-treating raw wool to obtain a wool fiber aggregate of which the wool fibers have drafting performance, and then performing drafting, thinning and shaping to obtain the drafted and thinned wool, wherein the wool fiber aggregate is subjected to colloid cladding after the pretreatment and before the drafting and the thinning; and the colloid is not chemically reacted with the wool, has elasticity and tensile strength, and is easy to clean. By the wool drafting and thinning technique, because the colloid perfectly holds the wool fibers, the fibers can be efficiently drafted, and further, mechanical damage to the fibers is reduced during the drafting process; and when a fiber breaks in some point, a drafting effect of other parts of the fiber is not affected, the phenomenon of non-uniformity of fibers of an inner layer and an outer layer can not be caused, the length requirement for the raw material fibers is low, and even, short fibers can be effectively drafted and thinned.

The invention relates to an arm folding device of a multi-rotor unmanned aerial vehicle. The arm folding device comprises an arm connecting piece 1, two support components among carbon plates and a fastener 5. The lower end of the front of the arm connecting piece 1 is hinged to the lower portions of the two support components among the carbon plates, and an eccentric hole is formed in the front end of the fastener 5; a barrier 4 is fixed to the upper portions of the two support components among the carbon plates, a barrier groove 9 is formed in the middle of the barrier 4, a connecting plate 10 is fixed to the upper end of the front of the arm connecting piece 1, a connecting plate notch 11 is arranged on the connecting plate 10, a clamp pin 7 is allowed to penetrate the connecting plate notch 11, and a hinge pin 6 is matched with the eccentric circular hole of the fastener 5; the clamp pin 7 is a semi-threaded bolt, penetrates the connecting plate notch 11 on the arm connecting piece 1 to be connected with an internally threaded hole in the hinge pin 6 and is in a free state relative to the arm connecting piece 1. The arm folding device has the advantage that the local reliability of the arm folding device and the integral stability of the multi-rotor unmanned aerial vehicle can be enhanced.

The invention discloses a quick assembling and disassembling locking mechanism of a battery box. The quick assembling and disassembling locking mechanism comprises a fixed locking seat, a locking piece arranged on the locking seat in a self-rotating manner and a torsion spring with the two ends extending outwards to form a V shape. a cross-shaped hook through hole is formed in the upper portion ofthe locking piece, the middle of the locking piece can contain a cross-shaped hook passing through the cross-shaped hook through hole, and the lower portion of the locking piece can be matched with atool for operating the locking piece to rotate; when the locking piece rotates, two extreme positions, namely a locking position and an opening position, exist on the locking seat; the locking pieceis hung on the cross-shaped hook when located at the locking position and disengaged from the cross-shaped hook through the cross-shaped hook through hole when located at the opening position, the twoends of the torsional spring are connected with the locking piece and the locking seat respectively, and the two ends of the torsional spring are shrunk and then expanded when the locking piece is switched between the locking position and the opening position; and the two ends of the torsional spring always have the expansion tendency under the condition without external force action, and the locking piece can be kept at the locking position and the opening position. The quick assembling and disassembling locking mechanism can be quickly assembled and disassembled and is not easy to slip.

The knapsack includes a knapsack body, back straps, waistbands and a vibration damper, as well as a pressure sensor, a weight displaying and overweight warning circuit, an air cushion, an adjustable handle, a ridge protecting damping pad and a re-winder. The knapsack of the present invention can reduce the impact force on the user and the force on the waist and ridge, has less slipping of the back straps, and is permeable and suitable for heat dissipation. The knapsack has also weight display and overweight warning. It is suitable for use as school bag and traveling bag.

The invention discloses a BIM-based ((building information modeling based) beam or column internal-cladding external-connecting connection structure. An active connector and a passive connector are disposed between a beam and a column or between a beam and a beam; the active connector is fastened to an end of the beam or column in a sleeving manner, the front end face of an active connector body is provided with an n-shaped hook, and the edge of the front end face is provided with a connecting flange; the passive connector is provided with a cladding hole in the sidewall of the beam or column or passive connector, and the cladding hole is fitly mounted to the n-shaped hook. The hook is in a wedged structure or the cladding hole is in a wedged structure, allowing the beam and the column to be mounted by opposite inserting, the beam and column extrude each other for tight attachment under the gravitational action, and field connection is very quick without manual centralizing or added accessories for work. The beam and column positioned and compressed are connected through a flange and are fixedly connected by using tapping screws or traversing bolts or by welding. Two supporting modes hook supporting and flange supporting are present, improving connection strength of the beam and column. The structure is simple in structure, very quick to construct in situ and suitable for popularization and implementation.

The invention provides a delivery device of an automatic vending machine. The delivery device comprises a tray provided with a plurality of delivery channels; each delivery channel is provided with asending mechanism connected with a drive motor which is fixed on the tray; the delivery device further comprises hangers for hanging goods above the sending mechanisms correspondingly. Correspondingly, the invention further provides the automatic vending machine. With the arrangement, application range of the automatic vending machine to selling goods is expanded, jamming of the goods due to non-standard packages of the goods is avoided. Besides, the automatic vending machine is through from top to bottom and is easy to be filled with the goods; the goods are not easy to slip off during pushing of helix tubes; a direct-dropping manner is utilized so that dropping points of the goods are positioned accurately, which is different from the rolling or slipping delivery manner of conventional automatic vending machines (provided with spring delivery channels, S-shaped delivery channels or crawler-belt channels).

The invention relates to a depilatory wax, and concretely provides a solid depilatory wax for human bodies, and a preparation method thereof. The solid depilatory wax for human bodies comprises a tackifier, a plasticizer, a flexibilizer, a film forming agent, a stabilizer and a waxy substance. The preparation method of the solid depilatory wax comprises the following steps: heating the waxy substance for fusing, adding the tackifier, the plasticizer, the flexibilizer, the film forming agent and the stabilizer, and stirring until uniform mixing. The solid depilatory wax for human bodies has good adhesion, good film forming ability and good toughness, so the solid depilatory wax has a high depilation effect, has a very good removal effect on hair in positions difficult to process, such as underarm hair and bikini hair; and the solid depilatory wax for human bodies also has the advantages of good peeling effect, no skin sticking, and convenient and fast operation. The method has the advantages of simple process, convenient operation, and convenience for large scale production.

The invention discloses a manufacturing method of a cannula puncture outfit for a disposable laparoscope. The manufacturing method comprises the following steps of: (1) setting a polygonal pyramid puncture needle; (2) setting a positioning puncture cannula; and (3) inserting the polygonal pyramid puncture needle into the positioning puncture cannula in a way that the head end of the polygonal pyramid puncture needle slightly extends out of the positioning puncture cannula. The invention further discloses a puncture outfit for implementing the manufacturing method of the cannula puncture outfit for the disposable laparoscope. The method provided by the invention is simple, is easy to implement and has low cost; the puncture outfit provided by the invention has a skillful structural design; tissues are cut by using the end part of a pyramid, and chambering is performed through the conical surface of a puncture head, so that the damage is small, and the safety and effectiveness of puncture surgery are enhanced effectively; a cannula sheath is provided with a segmented conical bump, so that high fixity is achieved and slippage is avoided; the head end of the cannula sheath is conical, so that the puncture resistance can be reduced, convenience is brought to operation, incision damage can be further reduced, a minimal invasion effect is achieved; and moreover, the puncture outfit is disposable, so that cross infection is avoided, and using safety is ensured.

The invention relates to an installation method of an overlength mast with a large inclination angle of a space structure, which belongs to the technical field of architectural engineering construction. The installation method comprises the following steps: mast shaping and manufacturing in subsections, field splicing, anchor point and base arranging, integral hoisting, cable rope arranging, mast inclination implementing, process monitoring, cable rope checking, fastening, and installing the overlength mast with the large inclination angle with the length being more than 40m and the inclination angle being 65 degrees on the space structure. According to the method, floor subsection splicing and integral hoisting in situ are adopted, and a cable rope is released slowly through a chain block to control the angle of the mast, so that the mast in the space structure is inclined slowly so as to be positioned accurately; the requirement of the installation accuracy of a space structure system is met; the problems of how to control the dimensional accuracy of the mast, and large deviation of the spatial position, angle and relative position of mast installation in the space structure are solved; and meanwhile, the stability and the safety of a structure stress system are ensured, the installation quality of the mast is improved, and the risk of installation construction of the overlength mast with the large inclination angle is reduced.

The invention relates to a three-phase four-wire plug and socket plugging assembly, which comprises a plug assembly and a socket assembly, wherein four male end binding posts are arranged on the bottom surface of a plug shell of the plug assembly; a plug body is arranged on the top surface of the plug shell; a concave annular zero line, a U-phased contact, a V-phase contact and a W-phase contact are arranged on the plug body; four male end binding posts are connected with corresponding contacts respectively; a socket core is arranged in a socket shell of the socket assembly; a center jack is arranged in the socket core; an arc-shaped contact and a contact pressure spring are arranged on the outer wall of the socket core; the contact pressure spring is extruded between the contact and the inner wall of the socket shell; a coaxial taper contact is arranged in an inner cavity of the socket shell; four female end binding posts are arranged at the bottom of the socket shell; the female end binding posts are correspondingly connected with annular groove inner contacts and the taper contact through wires; three annular groove inner contacts are correspondingly connected with and communicate with the zero line, the U-phased contact and the V-phase contact respectively; and the taper contact is connected with and communicates with the W-phase contact.

The invention discloses a jig of a machining box, wherein the jig solves the problem that a jig of a machining box is not high in clamping reliability. The jig comprises a bottom plate, a front baffle, a wedge pressing plate and a power device. The front baffle is arranged at the front end of the plate surface of the bottom plate, the power device is fixed to the rear end of the plate surface of the bottom plate, the wedge pressing plate is arranged on the bottom plate and located between the front baffle and the power device, and a transmission device is arranged between the power device and the wedge pressing plate; the clamping surface of the wedge pressing plate is provided with a left inclined plane inclined towards the clamping direction, and the clamping surface of the front baffle is provided with a right inclined plane symmetrical to the left inclined plane. The jig of the machining box belongs to the field of jigs. Because of the arrangement of the left inclined plane and the right inclined plane, the box cannot influence the clamping effect due to a casting draft angle; because the wedge pressing plate capable of rotating is arranged, the box cannot influence the clamping effect due to unparallel clamping surfaces, thereby being capable of not influencing machining precision; a quick clamp is adopted to serve as the power device, so energy is saved, and meanwhile the jig is convenient to use.

The invention relates to a forked puncture trocar, which comprises a puncture needle bushing and at least more than one puncture needle core, and is characterized in that: the puncture needle core has a tubular structure; the head of the puncture needle core is longitudinally cut and formed into a plurality of forks along the periphery; the forks are twisted outwards to be stretched in an umbrella shape; and when the head of the puncture needle core extends into the bushing, the forks are contracted to be tubular. Compared with conventional used puncture needle in which an operation position is judged by a puncture groove at the middle section of a rod, the forked puncture trocar is more accurate in positioning; since a tissue is clamped in the middle of the forks, the forked puncture trocar is difficult to slip off and is therefore more reliable; by replacing the puncture needle core, repeated extraction of the tissue can be performed by puncturing at one time, and even an endoscope can be substituted to perform excision on the tissue within a certain range; the injury to important tissues of tissues in front of a target or diffusion of tumors are not worried; and relative to a pair of biopsy forceps with a joint, the forked puncture trocar has the advantages of small size, high flexibility and capability of reducing the injury to the tissues.

The invention relates to a lifting appliance, in particular to a lifting appliance of concrete pipe piles. According to the technical scheme, a support, a transverse supporting rail, two conveying vehicles and lifting mechanisms are involved, wherein the transverse supporting rail is arranged on the top of the support in a sliding mode in the horizontal direction, the two conveying vehicles are arranged on the transverse supporting rail in a sliding mode in the length direction of the transverse supporting rail correspondingly, and the lifting mechanisms are correspondingly connected to the bottoms of the conveying vehicles; the lifting mechanisms are connected with lifting appliance frame bodies through hanging rings and a chain in a matched mode, and a lifting hook units are installed onthe lifting appliance frame bodies; and the lifting hook units comprise mounting bases and main shafts, wherein the mounting bases are fixedly arranged on the lifting appliance frame bodies, the mainshafts are rotationally arranged on the mounting bases in a rotating and penetrating mode, lifting hooks are pivoted to the main shafts in the length directions of the main shafts, and the mounting bases are provided with driving mechanisms used for driving the lifting hooks to rotate up and down in the axial length directions of the main shafts so as to hook the pipe piles. The lifting appliancedoes not need people to run beside the pipe piles, and then the pipe piles are bundled and then hoisted, the operation is simple, the hoisting process is stable, the manpower resources are saved, andthe operation safety is improved as well at the same time.

The invention discloses an adjustable mouth opening trainer, and belongs to the field of medical auxiliary instruments. The adjustable mouth opening trainer comprises two semi-arc supporting rods, two connecting rods and a connecting shaft, one end of each connecting rod is fixedly connected with one end of the corresponding supporting rod, the other end of each supporting rod is bent towards the direction perpendicular to the arc plane of the supporting rod to form a bending part, one bending part is provided with a semicircular upper tooth support, the other bending part is provided with a U-shaped lower tooth support, the connecting positions of the two connecting rods and the supporting rods are connected through the connecting shaft in a rotating mode, a spring is arranged between the two connecting rods, one connecting rod is provided with a caliper with scales, the other connecting rod is provided with a shifting sheet, and the shifting sheet is connected with the caliper in a clamping mode. The adjustable mouth opening trainer is reasonable in design, is used for preventing a patient from getting the complication about difficult mouth opening and treating the complication, improves the curative effect, and is capable of measuring and gradually increasing the mouth opening degree of the patient and convenient to use. The adjustable mouth opening trainer can be used when the patient sleeps at night, normal sleeping is not affected, the effect on daytime working from mouth opening training is reduced, the adjustable mouth opening trainer is more comfortable, effective and suitable for being popularized and used.

The invention provides epilating wax for the living stock and a preparation method of the epilating wax and belongs to the technical field of food processing auxiliaries. The epilating wax for the living stock is mainly prepared from a tackifier, a plasticizer, a flexibilizer, a film-forming agent, a stabilizer and a wax substance. The wax substance is heated and melted, then the tackifier, the plasticizer, the flexibilizer, the film-forming agent and the stabilizer are added to the wax substance, stirred and mixed uniformly, and accordingly, the epilating wax for the living stock is prepared. The epilating wax for the living stock has good adhesive force, good film-forming performance, good rigidity and high epilating rate, has a good removal effect on feather or fur at parts where the feather or fur is difficult to deal with, such as fine feather under winds, and also has a good peeling effect, and efficient epilating can be realized at higher operation efficiency of a worker or a wax peeling machine. The method is simple in process and convenient to operate and facilitates large-scale production.