48 results about "Double tongue" patented technology

The invention relates to a high-voltage conductor end ground clamp, comprising a hook with a ground conductor end, wherein the hook is internally and respectively connected with two rotatable tongue sheets, the two tongue sheets are oppositely arranged to form a splayed clamping opening for clamping a conductor, the hook is further provided with a locking block which is rotatably connected with the hook through a connection pin shaft; the locking block consists of two locking plates, a connection rib and a limiting plate; the two locking plates are respectively arranged at the front and the back of the hook, the connection rib is connected with the two locking plates, and the limiting plate is connected with the hook and then is adhered on the side surface of the hook; the connection pin shaft is internally sleeved with an inner side surface, a torsion spring and an insulating pull rope; the two ends of the inner side surface respectively prop against the hook, the torsion spring is arranged on the connection rib of the locking block, the insulating pull rope is fixed on the locking block and is used for pulling the locking block to rotate, the side edge of the lower part of each locking plate is provided with an inclined line conveniently guiding the conductor into the hook, the edge of the upper part of each locking plate is provided with an arc clamping opening matched with the conductor, the arc clamping opening is used for clamping double tongue sheets, and the conductor is clamped so as to prevent the conductor from moving downwards and to be fixed completely; and under a high wind environment, the conductor generates wave and can be prevented from withdrawing from a clamp.

A novel shoe construction provides a unique aesthetically pleasing appearance to a shoe while also reinforcing the shoe construction. In the shoe construction, the shoe is provided with a first tongue that extends upwardly from the shoe sole and across the forefoot opening in the front of the shoe upper, and a second tongue that is separate from the first tongue and extends upwardly from the shoe sole beneath the first tongue.

The invention discloses an arborvitae wax-sealing double-tongue grafting seedling raising process. In the process, a container seedling in reserved bed seedlings or transplant seedlings of arborvitae is adopted as a stock, a 2 to 3 year-old twig with robust growth, plump buds and no plant diseases or insect pests is adopted as a scion, a problem that the scion is easy to lose water is solved by the wax-sealing technology, and a problem of enlarging grafting combination area is solved by the double tongue grafting technology. By adopting the method, the arborvitae grafting seedling raising can be directly carried out in field, corresponding seedling raising procedures are simplified, the cost is low, the seedling raising is quick and the survival rate is high. The method can solve the problem of quick propagation of good provenance, family, clone and good single seedling of the arborvitae.

This invention relates to an automatic lock anti-theft lock body, including lock-frames, body panels and the main lock bolt. Main lock bolt board sets up the main lock block and the main lock bolt plate slider, with the rotary blades on the block and only retreat plectrum. Tongue and double-rotation function tongue fixation connect with the function of the tongue plate locking activities roof block access shaft; locking block with the top activities locking control slip of tongue axis next, functional tongue plate fitted with locking control of the match slip of tongue slip of tongue positioning deduction. On the control plate with the Shaft control plate, plate and the main control board tongue positioning machine was linking deduction. Tongue pull double-block through a double-axle pin tongue Next, double tongue pull with the first block on top of the second block and the top block, Top with second piece of tongue function block top plate connecting match, the first block with the top block Plectrum top mutual linking. The beneficial effect of the invention is: closed automatically lock, simple structure and easy installation; because components are relative little, transmission components are the entire plate production, it is high reliability.

The invention relates to a polar plate for a battery packet, which comprises a copper plate, a copper/aluminum composite plate or a nickel/copper/technological stainless steel composite plate. The invention is characterized in that the polar plate is connected or is welded with a folding polar ear, a bending polar ear or a double-tongue polar ear which is cut. And the polar ears are formed by copper plates, copper/aluminum composite plates or nickel/copper/technological stainless steel composite plates. The polar plate solves the problem of welding different materials, which can achieve duplex spot welding with a battery electrode, and improve the welding quality and conductive level.

The invention relates to an improved double cylinder lock case structure, belonging to technical field of door locks, comprising a casing being composed of a backboard and a cover plate, which is characterized in that a plurality of functional units for the lock case being composed of an oblique tongue component, a square tongue component, shift fork component and a connecting piece enabling linkage of the oblique tongue component and the square tongue component are arranged in the casing. A lining plate is connected with the backboard at one side. The oblique tongue component is arranged at the mid-lower part of the backboard with an oblique tongue seat for fixing the oblique tongue component. An oblique tongue of the oblique tongue component protrudes from a hole for oblique tongue oppositely arranged on the lining plate. A limiter preventing further dislocation and projection of oblique tongue is fixed between the oblique tongue seat and the lining plate. The improved double cylinder lock case structure has the advantages of high safety performance, excellent stability and return elasticity of the shift fork, suitability for various situation and environment as a gate lock, a door lock or a bathroom lock with strong practicality, and improved ability to ensure lives and property safety of consumers.

The invention relates to a single-hook double-tongue tightening earthing clamp provided with an n-shaped hook and an operating rod connector. The n-shaped hook is connected with the operating rod connector through a steering device. A double-tongue spring clamp plate is disposed in the n-shaped hook. Nuts are disposed on the outer side of one side of the n-shaped hook. The tail of the operating rod connector is hemispherical. A spring pin is mounted on the operating rod connector. The part of the clamp, in contact with a lead, is tightened by the single hook and double tongues, while the part of the clamp, in contact with an insulating operating rod, is angularly variable. The single-hook double-tongue tightening earthing clamp can be operated at all angles and is applicable to flexible use with variable angle devices; the tail of the operating rod connector is hemispherical, so that quick connection with an operating rod is facilitated. Therefore, the problem that the traditional earthing clamp has single operating angle is solved; fast, firm assembly of working site earth wires is ensured, quick connection with the operating rod is facilitated, and the single-hook double-tongue tightening earthing clamp is simple to use, safe and reliable with no need for preparation of additional other types of earthing clamps; the clamp can be assuredly mounted on wires or bus bars at any angle.

The invention provides an omni-directional anti-disengagement ground clamp. The omni-directional anti-disengagement ground clamp comprises a clamp body, wherein a double-tongue spring is designed in the clamp body. The lower portion of the double-tongue spring is fixedly connected with a first spring sheet. The left side of the lower end of the clamp body is fixedly connected with an L-shaped support. A single-tongue spring is designed between the L-shaped support and the clamp body. A second spring sheet is fixedly connected with the L-shaped support. The second spring sheet is located below the first spring sheet. An insulating rod is fixedly connected to the lower end of the clamp body.

The invention relates to a short-circuit ground clamp with a locking anti-loosening function. The short-circuit ground clamp comprises a clamp body and a locking device, wherein the clamp body comprises a hook, two tongue pieces movably connected to the inner side of the hook and two tension springs arranged between the hook and the tongue pieces. The short-circuit ground clamp is characterized in that the locking device is a ratchet wheel non-return mechanism, the ratchet wheel non-return mechanism allows a conducting wire to enter the clamp body, and the conducting wire is restricted to retreat from the clamp body. The short-circuit ground clamp has the advantage that the locking device is added on the basis of an existing duck tongue type (double-tongue tensioning type) ground clamp without changing original operation habits, so that the short-circuit ground clamp has the characteristics of simple structure, sensitive actions and easy operation, and solves the risk that the existing ground clamp is likely to slide out of the conducting wire.

The invention relates to a gravity self-locking type anti-drop ground wire clamp. A single-hook double-tongue fixation wire clamp and a ground wire are connected with the top end of a slide rail through bolts, a fixation wheel at the lower portion of the slide rail is connected with a U-shaped connecting piece through a steering knuckle screw, the U-shaped connecting piece is connected with an insulation push-pull rod inner cylinder, a movable slide block is embedded in a slideway between two fixation wheels on the slide rail, the movable slide block is provided with a movable wheel and is connected with a movable locker, an insulation push-pull rod outer cylinder sleeves the insulation push-pull rod inner cylinder, an insulation tube inner sealing plate is arranged below the insulation push-pull rod inner cylinder in the insulation push-pull rod outer cylinder, the lower end surface of the insulation tube inner sealing plate is provided with an adjusting bolt, one end of a steel wire is fixed to the upper portion of the slide rail, the other end of the steel wire successively bypasses the movable wheel and the two fixation wheels and then is connected with the adjusting bolt, and the lower end portion of the insulation push-pull rod outer cylinder is provided with an operating lever interface. The gravity self-locking type anti-drop ground wire clamp ensures rapid and firm installation of a ground wire in an operation field and realizes an anti-drop function.

The invention relates to a thin-shell walnut double-tongue grafting technology and belongs to the technical field of plant grafting. According to the technology, scion and stock selection standards are set, while the overall contact surface between the stock and the scion is set to be inclined Z shape strictly, thus the contact area of cambium between the scion and the stock is expanded, and grafting survival rate is increased to be over 95%. The technology has the advantages of operational convenience and high efficiency, and solves problems of low grafting survival rate, slow growth speed of grafted plants, late productive period and low output of thin-shell walnut.

The invention discloses a shrunken and weak bud grafting method of a jujube tree. A double-tongue grafting method is adopted, and the shrunken and weak bud grafting method comprises the steps: 1, scion cutting, namely pruning a scion which is an annual branch with shrunken buds and two bud eyes to form a scion body which is 10 cm long; 2, cutting a cut at the lower end of the scion body to form afirst slope which is 23 cm long, and upwards splitting a cut on a position 1/3 away from the upper part of the lower end of the bottom of the first slope to form a shape like a tongue; 3, cutting offa stock at a set height, then, cutting the cut to form a second slope which is 3 cm long, and downwards splitting a cut on a position 1/3 away from the lower part of the top end of the second slope toform a shape like a tongue; 4, mutually inlaying and inserting the scion body and the stock, ensuring that a cambium is aligned during inlaying and insertion, then, binding and sealing a grafting union by using a plastic band; 5, sleeving the upper end of the grafting union with two layers of dark plastic bags; and 6, checking the germination condition of the scion within 15-20 days after grafting, removing buds when the buds on germination positions of bud eyes grow to 5 cm, and then, carrying out secondary bagging. The shrunken and weak bud grafting method has the advantages that the survival rate of jujube tree grafting is increased, and it can be ensured that the jujube tree is successfully grafted even if shrunken and weak buds appear after the jujube tree is grafted.

The invention discloses an electric mortise lock with earthquake resistance and relates to a lockset. The invention provides the electric mortise lock with the earthquake resistance, which not only can respond rapidly according to the earthquake category when an earthquake exists so as to ensure that a safety door can not be blocked, and also has firmness and theft prevention of a burglar-proof door. The electric mortise lock is provided with a vibration information acquisition unit, an intelligent processing unit, a double-tongue executing unit and a power supply, wherein an input end of the intelligent processing unit is connected with a vibration information output end of the vibration information acquisition unit, the output end of the intelligent processing unit is connected with the double-tongue executing unit, and the power supply is electrically connected with the vibration information acquisition unit, the intelligent processing unit and the double-tongue executing unit. The electric mortise lock with the earthquake resistance integrates the machinery and the electronics, not only can detect the vibration in real time, but also can send instructions to the double-tongue executing unit when the destructive earthquake happens, and unlocks to open the door, so that the safety door can be prevented from getting stuck.

The invention relates to the technical field of power equipment, in particular to a GPS positioning automatic detection hanging-type grounding wire hanger and a use method thereof, and aims at achieving the purposes that when the hanger is connected with a wire, the wire can be conveniently clamped into a hanger body, the stability of connection between the hanger body and the wire is improved, and the accuracy of connection between the hanger body and the wire is also improved. The hanger mainly comprises the grounding wire and the hanger body arranged at one end of the grounding wire; the hanger body is in a J shape, double tongue-type spring clamps are arranged in the hanger body, the grounding wire is connected with one end wall of the hanger body, a connecting ring is arranged at theend, away from the grounding wire, of the hanger body, an insulating pull rope is connected to the connecting ring, a main valve spring used for opening the two tongue-type spring clamps is rotatablyarranged between the two tongue-type spring clamps, and a sensing electroscope and a GPS positioner are further arranged on the hanger body.

The invention discloses a double-tongue insurance test paper bag. The double-tongue insurance test paper bag aims to solve the problems that test paper is always sealed and packaged by adopting a double-tongue test paper bag in various examinations, such as the college entrance examination and the senior high school entrance examination, due to the fact that the double-tongue test paper bag is further provided with an inner tongue, the test paper can be further sealed and packaged by the double-tongue test paper bag after examination so that the utilization efficiency can be greatly improved,however, a lot of trouble is increased due to the fact that when an external tongue is cut apart by an examination invigilator with a knife, the inner tongue can always be cut and damaged carelessly,and a standby test paper bag can be only used. The double-tongue insurance test paper bag mainly comprises a bag body, the outer tongue, pinholes, the inner tongue and a string and is characterized inthat a row of dense pinholes are additionally formed in the joint of the outer tongue and the bag body so that the outer tongue and the bag body can be connected but not tightly and can be pulled apart easily without using the knife, the string is pasted along the pinholes, the two thread ends of the string are exposed out of the bag body, when the test paper bag is opened, a row of pinholes canbe pulled off by pulling the two thread ends slightly firmly, the outer tongue can be separated from the bag body, the test paper bag can be opened naturally, and the inner tongue cannot be damaged atall. The double-tongue insurance test paper bag has the advantages that the structure is simple, unsealing is fast and convenient, and the popularization is easy.

The invention provides a special wiring rod for a large current generator, and relates to the field of testing instrument wiring. The special wiring rod comprises a double tongue hook, wherein the double tongue hook is provided with two screws for connecting test wires, and the lower side of the double tongue hook is connected with a universal joint, the universal joint is connected with a plurality of insulating rods which are connected in sequence, tightening mechanisms are arranged between the adjacent insulating rods, and an insulating rubber handle is arranged at the lower end of the insulating rods. The special wiring rod utilizes the design of the tightening mechanisms and a flexible fine adjustment mechanism, so that the special wiring rod is convenient to assemble and disassemble,and the safety hazard in manually climbing of the outdoor high voltage switch is avoided. Thanks to the design of the flexible fine adjustment mechanism, the double tongue hook at the top has multiple degrees of freedom, and the wiring on both sides of inlet and outlet leads of the switch can be easily and conveniently realized under the switch.

The invention provides a method for grafting, shaping and pruning of Panlong chestnut. According to the invention, double tongue grafting is adopted for grafting of a young tree; a bamboo pole must beerected to assist growth; single-trunk top grafting is adopted for grafting of a big tree; during shaping, buds located at the upper part of the arched back of a tree are emphasized to be used as extension branches of a main branch; and during pruning, the number of fruiting mother branches of the Panlong chestnut is small, i.e., the number of reserved mother branches is determined by tree potential, wherein each fruiting branch group is reserved with 3 to 4 mother branches when the tree potential is strong, two mother branches when the tree potential is moderate, and one mother branch when the tree potential is weak, and the phenomenon of a large number of empty shells is generated if the number of reserved fruiting mother branches of the Panlong chestnut is overlarge. By adoption of themethod provided by the invention, the survival rate of grafting is high, and large-area planting can be realized; meanwhile, by adoption of the method provided by the invention for shaping and pruning, the beautiful drooping shape of a tree is maintained, and the effect of high-yield fruiting is guaranteed.

The invention discloses a novel sound-insulating wallboard, which comprises a board body and a seal. The end face of one end of the board body is provided with a double tenon groove, and the end face of the other end is provided with a double tenon head matching the double tenon groove. The middle of the side wall of the plate is provided with a bump, and the plate is symmetrically provided with grooves on both sides of the bump, and the plate is provided with a fixing groove on the other side of the bump, so The inside of the fixing groove is equidistantly provided with several installation and fixing holes, and the board body is fixedly connected with the wall by installing screws in the installation and fixing holes, and the seal is fixed in the fixing groove by glue. The plate body includes a fireproof layer, a base plate and a rubber layer, the base plate is located between the fireproof layer and the rubber layer, the fireproof layer is arranged on the outermost layer of the plate body, and several triangular holes penetrating through the base plate are opened in the base plate . The invention has ingenious conception, good sound insulation effect and convenient installation.

According to various aspects, exemplary embodiments are disclosed of articles of footwear or foot-receiving devices having inner and outer tongues, such as double tongue snowboarding boots, etc. In an exemplary embodiment, an article of footwear or foot-receiving device (e.g., snowboarding boot, etc.) generally includes a housing member at least partially defining a chamber for receiving a foot. An inner tongue is coupled to the housing member. An outer tongue is coupled to at least one of the inner tongue and the housing member. Other aspects of the present disclosure relates to methods. An exemplary method of wearing an article of footwear (e.g., snowboarding boot, etc.) generally includes tucking a portion of a wearer's pants leg generally between inner and outer tongues of the snowboarding boot. Another example method includes inserting a foot through an opening of a housing member of a foot-receiving device (e.g., snowboarding boot, etc.), that also includes first and second tongues.

The invention discloses a steerable grounding device which is used for solving the problem that the angle between a grounding wire clamp and a grounding rod cannot be adjusted in the prior art, so a grounding wire is prone to fall, and safety accidents are easily caused. The grounding device comprises a grounding wire clamp and an insulating rod, the grounding wire clamp is a double-tongue wire clamp, one end of the grounding wire clamp is sequentially connected with a first direction connecting part and a second direction connecting part, one side of the first direction connecting part is provided with a first end-toothed disc, a plane where the first end-toothed disc is located is parallel to a plane where the grounding wire clamp is located, one side of the second direction connecting part is provided with a second end-toothed disc, and a plane where the second end-toothed disc is located is perpendicular to the plane wherein the first end-toothed disc is located. A third end-toothed disc is arranged at a top end of the insulating rod, a plane where the third end-toothed disc is located is perpendicular to an end face of the insulating rod, and the third end-toothed disc can bebuckled and fastened with the first end-toothed disc and the second end-toothed disc. The device has the advantages that a rotating part is added, the operation time can be shortened, and the safety and reliability of the operation can be ensured.

The invention discloses an ultra-effective double-tongue freezer compressor air suction valve plate reed. The ultra-effective double-tongue freezer compressor air suction valve plate reed comprises a left reed body and a right reed body which are combined together to be installed for use. The left reed body and the right reed body both comprise reed tongues, cantilevers and fixed ends. Each cantilever is located between the corresponding reed tongue and the fixed end. The top end of each cantilever is fixedly connected with the corresponding reed tongue, and the bottom end of each cantilever is connected with the fixed end. The reed tongues, the cantilevers and the fixed ends are integrally formed. By means of the ultra-effective double-tongue freezer compressor air suction valve plate reed, according to the technical problems that an existing freezer compressor air suction valve plate is large in cantilever sectional area and poor in fatigue resistance, the cut-off surface of the reed is rugged, a most ideal surface cannot be obtained easily, and time consumption is serious during luster polishing of the reed, a set of reed bodies are adopted to be combined for use, and the sectional area of each cantilever is decreased; and meanwhile, fatigue resistance of the reed is greatly improved, refrigeration performance of a freezer compressor is also improved and the production rate is increased.