71results about How to "Not easy to pull" patented technology

The invention relates to an air layer fabric and a production method and an application thereof. The air layer fabric comprises an outer layer, a secondary outer layer, a middle layer, a secondary inner layer and an inner layer; the outer layer and the inner layer are of a knitted weft flat tissue structure composed of cotton yarns; the secondary outer layer is composed of a first polyester yarn and a coil of the outer layer in a tucking manner; the secondary inner layer is composed of a second polyester yarn and a coil of the inner layer in a tucking mode; and the middle layer is formed by sleeving the first polyester yarn of the secondary outer layer and the second polyester yarn of the secondary inner layer by a third polyester yarn in a tucking manner. The fabric and the clothing provided by the invention have good anti-hooking and pilling performance and the anti-napping performance of the fabric, and is capable of effectively improving the wearability of the fabric.

The invention discloses a bunching arrangement device for an optical fiber branching device. The device comprises a fixed plate, and a through groove penetrates through the middle of the front surfaceof the fixed plate; telescopic grooves are formed in the upper and lower ends of the two side walls of the fixed plate; telescopic mechanisms are mounted in the telescopic grooves; clamping plates are mounted on the two sides of the fixed plate; pull plates are fixedly connected to the middles of the sides, away from the fixing plates, of the clamping plates; mounting plates are fixedly connectedto the upper and lower ends of the front surface of the fixed plate; and sliding grooves are formed in the sides, close to the middle of the fixing plate, of the mounting plates; and a plurality of inserting holes are formed in the inner walls of the sides, close to the fixing plate, of the sliding grooves 7. According to the bunching arrangement device, the bunching mechanisms are arranged on the fixed plate, and optical fibers are clamped through the first chucks and the second chucks of the bunching mechanisms in the using process; meanwhile, the positions of the first chucks and the positions of the second chucks are fixed through the plug pins, the optical fibers are prevented from being interwoven, and therefore the optical fibers are arranged, and workers can maintain and check theoptical fibers conveniently.

The invention relates to a wire passing protection device of a coaxial rotating joint of an inner wire walking industrial robot. The device comprises a wire passing guide assembly and a wire passing protection assembly. The wire passing guide assembly is installed in a front casting for wire feeding, the wire passing protection assembly is installed in a wire passing hole and used for a rear casting for wire discharge, an electric wire penetrating in the wire passing guide assembly is aligned to the wire passing protection assembly to penetrate out, and the thickness of the electric wire penetrating in the wire passing guide assembly is restrained by the wire passing guide assembly to enable the electric wire to penetrate out of the wire passing protection assembly. For the inner wire walking industrial robot, the structure composed of the wire passing protection assembly, a high-flexibility wire (with a protection layer) and the wire passing guide assembly is adopted, dual protectionis achieved for the electric wire, joint transmission lubricating requirements are comprehensively considered, the structure is compact and small, no lubricating oil is additionally needed for lubricating the electric wire, the fault risk is lowered, the electric wire torsion distance is prolonged, circuit fixing is convenient, electric wire torsion reliability is effectively improved, wiring saves more labor and time, operation is easy, convenient and fast, and the requirements for operation skills of staff are lowered.

The invention discloses a grounding nail, which relates to the field of electric power tools. The grounding nail comprises a ground drilling guide head, a foundation rod detachably connected with theground drilling guide head, and a striking device detachably connected with the foundation rod, wherein the ground drilling guide head, the foundation rod and the striking device are connected in sequence. The grounding nail also comprises a lengthening pipe arranged between the foundation rod and the striking device. The lower end of the lengthening pipe is detachably connected with the foundation rod, and the upper end of the lengthening pipe is detachably connected with the striking device; water through holes are formed in the lengthening pipe and the foundation rod, so that water passingresistance reduction can be realized when the conductive resistance cannot meet the requirement; and a blade arranged on the drilling guide head not only can guide, but also can increase the groundingarea. The grounding nail is not prone to deviating when the nail is nailed into loose soil, and the length can be changed, so that the nail is suitable for being used in the loose soil.

The invention provides an outgoing line clamp device and a permanent magnet motor with the same. The outlet wire clamp device includes: the upper piece of the wire clamp, the inner surface of which is provided with at least one pressing protrusion; the lower piece of the wire clamp, the inner surface of which is provided with a groove for passing through the line matching the pressing protrusion; Wherein, the wire-pressing protrusion cooperates with the wire-passing groove to form a wire-passing channel suitable for the lead wire and fix the lead wire. Since the wire-passing channel formed by the wire-pressing protrusion and the wire-passing groove is in the shape of a "bow" and is no longer a straight-line channel, the lead wire can be clamped, the lead wire is not easy to be pulled, and the solder joint inside the lead wire can be avoided. The outgoing line clip device of the present invention is simple in structure, safe and reliable.

The invention discloses a mobile terminal. The terminal includes: a first machine shell; a first hinge mechanism and a second hinge mechanism; a second machine shell, which is hinged with the first machine shell through the first hinge mechanism and the second hinge mechanism; and a flexible display screen, which is disposed at the first machine shell and the second machine shell, and has a bending region and plane portions distributed on two sides of the bending region. The bending region is located between the first hinge mechanism and the second hinge mechanism, and a bending axis line of the bending region is disposed in a biased manner with respect to a hinging axes line of the first machine shell and the second machine shell in a folding state, and is closer to the plane portions than the hinging axis line. In a process of folding the mobile terminal, the bending region of the flexible display screen does not need to rotate around the hinging axis line of the first machine shelland the second machine shell, the bending axis line thereof is closer to the plane portions of the flexible display screen, thus a change of length of the flexible display screen is lesser or even non-existent, the same is not liable to be pulled and dragged, and life thereof is longer.

The invention relates to the technical field of rat-proof optical cables, and discloses a rat-proof optical cable for mountain areas. The rat-proof optical cable for mountain areas comprises a reinforced middle core, wherein the surface of the reinforced middle core comprises a loose casing and a cable core filling, the loose casing is on the surface of the reinforced middle core, the left of thesurface of the loose casing and the right of the surface of the reinforced middle core are fixedly connected, the cable filling is on the surface of the loose casing, the inner wall of the cable corefilling and the surface of the loose casing are fixedly connected, the inner wall of the cable core filling and the surface of the reinforced middle core are fixedly connected, and the surface of theloose casing comprises an inner jacket, an anti-torque force layer and an asbestos layer. In the rat-proof optical cable for mountain areas, the anti-torque force layer is arranged on the surface of the inner jacket, so as to prevent a cable from bending in cabling; a material outer thin layer and a thin layer thorn cone are arranged on the inner wall of an outer jacket, so as to prevent rat-dispelling material filling from volatilizing in production and transportation to shorten rat-dispelling duration.

A low-noise spring spindle-main braiding element for braider, is suctaible for braiding electrical wire, cable, glass fiber tube, cord and belt, etc.. It consists of right post lower end pierced through cursor for fixing on ring inside-flange rod, its switch piece one end linked to connecting rod lower end, another end pierced through left post lower end through-hole and connected with left post having pressing spring by pin, the movable pin one end connected to left post, another end connected to porcelain element frame of right post, support of porcelain eye with lead-in line connected to the right post of porcelain element frame sleeved with spring and fixed with porcelain eye having lead-out line. The said support is plastics-moulded, its one side has spring mouted to match with connecting rod, another end fined on right post, and the said right post has the spring changed for braiding multiple yarns and is matched with wt. of cursor. Its advantages are few parts, easy processing,assempling and changed, light wt., low-operation friction, low noise, and one machine used for braiding many varieties of products.

The invention relates to the technical field of leather materials, in particular to a hot-melt adhesive and leather composite material and a preparation process thereof. The preparation process comprises the following steps that A, a leather material is taken and laid on the surface of a lower mold, then release paper with a hot-melt adhesive film is laid on the surface of the leather material, anupper mold is closed, and thermocompression bonding treatment is conducted; B, the upper mold is opened, the release paper is torn off, release paper with a hot-melt adhesive film is laid on the surface, the upper mold is closed, and cold compression treatment is conducted; and C, the whole mold is placed in a fusing device for fusing treatment, finally, the upper mold is opened, demolding is conducted, and the hot-melt adhesive and leather composite material is obtained. The preparation process is simple in operation and easy to control; and the hot-melt adhesive laid in the step A is subjected to thermocompression bonding treatment, so that the hot-melt adhesive is heated to melt and permeate into the leather layer, the internal viscosity of the leather is improved, fibers in the leather are protected, fusing is neat, interlayer bonding is firm, and the quality is stable.

The invention discloses a combined cutter and separable cutting method of a ceramic substrate LED. The combined cutter comprises a main shaft, a main shaft flange, a grinding wheel sheet, a flange gasket, a disk shaped milling sheet, a gasket and a locking device, wherein the main shaft flange, the grinding wheel sheet, the flange gasket, the disk shaped milling sheet, the gasket and the locking device are sequentially arranged on the main shaft; the diameter of the grinding wheel sheet is more than that of the disk shaped milling sheet. The cutting method comprises the following steps: transversely cutting and lengthways cutting an LED sheet through the combined cutter; grinding and processing the ceramic substrate through the grinding wheel sheet during cutting; milling a rubber layer through the disk shaped milling sheet, wherein the grinding wheel sheet and the disk shaped milling sheet work at the same time. According to the method, the cutter of different forms and different processing methods are utilized to separately cut the rubber layer and the ceramic substrate, and thus the cutting efficiency and quality are improved.

The invention belongs to the technical field of electrical cabinets and specifically relates to an explosion-proof electrical cabinet, which includes a cabinet body. Square grooves are disposed on both sides of the cabinet body. Matching hinged plates are embedded in the square grooves, and are flush with the inner and outer surfaces of the cabinet body. The side of each hinged plate close to theinterior of the cabinet body is provided with two stretching devices. In the present invention, the hinged plates are embedded in the square groove by the stretching devices to fit the cabinet body closely so as to improve sealing performance. In addition, when an explosive gas inside the cabinet body impacts the inner wall of the cabinet body, the hinged plates are pushed and have two motion states after removed from the square grooves, in one of which two motion states, the gas drives the bottoms of the hinged plates to rotate, and in the other of of which two motion states, the hinged plates continues staying away from the cabinet body. Finally the expanded gas is ejected not only from the deflected positions on the bottoms of the hinged plates, but also from a gap between the tops of the hinged plates and the cabinet body, thereby expanding the diffusion range of the expanded gas, and the hinged plates are clamped to the positions of the square grooves, and are not easy to pull soas to improve safety.

The invention discloses a novel power cabinet. The novel power cabinet comprises a cabinet body and a cabinet door, wherein the cabinet body is internally provided with an electricity meter mounting base; the cabinet door is provided with a window at a position corresponding to the electricity meter mounting base; the window is provided with a baffle; the baffle is located at the inner side of the cabinet door; the baffle is suspended on the bottom part of a spring which is fixed on the cabinet door above the window; the lower end of the baffle is provided with a pull rod; the bottom part of the pull rod is provided with a hand-hold part; the cabinet door is provided with an upright long strip through hole at a position corresponding to the pull rod; the hand-hold part is located at the outer side of the cabinet door through the through hole; the hand-hold part is dragged up and down in the through hole and the baffle is pulled to displace up and down through the pull rod; the two sides of the baffle are respectively configured with groove type slideways with opposite openings; and the inner side cabinet door above the window is provided with a limit groove. The novel power cabinet provided by the invention has the advantages of being simple in structure, convenient and practical, no phenomenon that the baffle cannot be easily pulled due to ash deposition and other reasons occurring, convenient in installation, simple in production and low in cost, and good in market promotion value.

The invention discloses a mold for molded barb type side bending. The mold comprises an upper mold body, a lower mold body, an upper mold fixed molded block, a lower mold fixed molded block, slotting tools and side molded blocks. The upper mold body and the lower mold body are connected and matched through a plurality of locating guide columns and a plurality of springs; the upper mold fixed molded block is fixedly arranged on the upper mold body, and the lower mold fixed molded block is fixedly arranged on the lower mold body; the two sides of the lower mold fixed molded block are each provided with one side molded block through a guide rail and a reset spring on the lower mold body; and the lower mold fixed molded block comprises a main body, a lifting block and an inserting block. The mold is simple in structure and reasonable in design, and when two symmetric products with barbs are bent and punched, the aim that the two products are synchronously machined at one time is achieved; the shape consistency of the two products is very high, and the material pulling phenomenon is not prone to appearing in a gap reserved after machining.

The invention relates to a part of a welding clamp, in particular to an electric conductor of the welding clamp. The electric conductor of the welding clamp comprises an electric conductor formed by punching a sheet copper, and is characterized in that the wiring end of the electric conductor is provided with a tubular sheath, and the tubular sheath is provided with groove screw holes. The electric conductor of the welding clamp has the advantages that the wiring end of the electric conductor is not easy to deform; groove screws are not easy to loose, and a lead is not easy to pull, so that wiring is more stable; sparks are not easy to generate, and temperature is stably increased, so that hands cannot be scalded by the welding clamp; the service life is long, the labor strength of a welding operator is reduced, the welding efficiency is high, the welding cost is low, and the like. The electric conductor of the welding clamp is high in cost performance.

The invention discloses a milling machining method for a heat-proof layer, belongs to the technical field of heat-proof layer machining, and solves the technical problems that the appearance quality is poor, the edge size precision is low, and research and use requirements cannot be met after machining through an existing milling method. The milling machining method comprises the following steps of: roughly machining a to-be-machined part on the heat-proof layer, and reserving machining allowance to obtain a machined surface; preparing curing glue; coating the prepared curing glue on the machined surface until the curing glue permeates into the heat-proof layer from the machined surface; curing the curing glue; and subjecting a to-be-machined position on the heat-proof layer to finish machining, and milling the machined surface to a target size. According to the method disclosed by the invention, the surface milling precision of the low-density heat-proof layer can be improved, the apparent quality of the machined surface is improved, holes, grooves or surfaces machined on the surface of the low-density heat-proof layer can meet the use requirements, and the rework rate and the rejection rate of the heat-proof layer are reduced.

The invention provides an intelligent ascites drainage device capable of observing drainage speed and the interior of an abdominal cavity. The intelligent ascites drainage device comprises a punctureneedle head, a drainage tube, a vacuum negative pressure bottle and a fixing box, wherein the two ends of the drainage tube are connected with the puncture needle head and the vacuum negative pressurebottle respectively, and the vacuum negative pressure bottle is placed in the fixing box; the device also comprises a control valve for controlling the drainage speed and installed on the drainage tube; the lower port of the drainage tube is connected with an anti-backflow valve for preventing a solution in a vacuum bottle from flowing back; and the device also comprises a recording module whichis used for displaying the weight and the flow speed of the drainage solution, a camera module which is used for observing the interior of the abdominal cavity, and a supporting module which is used for fixing the drainage tube. The intelligent ascites drainage device is excellent in performance, has more functions compared with a traditional ascites drainage device, can meet the requirements of medical staff, and improves the working efficiency of the medical staff.

The invention discloses a plug device with ribs for an oil conveying pipe. The plug device comprises air bags, valves arranged on the air bags, a flexible pipe connected with the valves, an inflation pump connected to the tail end of the flexible pipe and a pressure gauge installed on the flexible pipe. The plug device further comprises setting ribs uniformly arranged on the outer surfaces of the air bags, Since an air bag is provided, the only thing needs to be is pumping out petroleum in the air bags on the two ends during emergency maintenance. The operation process is simple, labor-saving and time saving, and the work efficiency is substantially improved. The pressure gauge allows a worker to decide to aerate or discharge the air bags based on the pressure value on the pressure gauge, the setting ribs uniformly arranged on the outer surface of the air bags retain the profile of the air bag, so that the air bags can be well stuck in the petroleum pipe.

The invention relates to the technical field of pet supplies, in particular to an LED light emitting pet collar with a positioning function. The LED light emitting pet collar comprises a collar belt,a positioning box, a flexible hook-face liquid crystal screen, a fancy and colored lamp strip and a collar electromagnetic lock, two cutting lines are embedded in the portion, close to the edge, in the collar belt in the length direction of the collar belt, a lithium battery is connected with a power supply port of an MCU single-chip microcomputer through a voltage drop module, a UWB chip, a GPS chip, and a communication chip are all connected with a serial port of the MCU single-chip microcomputer, the flexible hook-face liquid crystal screen is installed on the positioning box, the fancy andcolored lamp strip is electrically connected to the MCU single-chip microcomputer, the collar electromagnetic lock is electrically connected to the MCU single-chip microcomputer, and a heart rate sensor is embedded in the inner side of the collar belt and electrically connected with the MCU single-chip microcomputer. The LED light emitting pet collar has diversified functions, has nighttime lightemitting identifications, and can position a pet after the pet gets lost, and display effective information and emergency contacts of the pet.

The invention discloses an air bag for overhauling a petroleum pipeline. The air bag comprises an air bag body, an air cock arranged on the air bag body and a tee joint connected with the air cock. The air bag further comprises a hose A connected with the position A of the tee joint, a hose B connected with the position B of the tee joint, a ball valve connected to the tail end of the hose A, an air pump connected to the tail end of the hose B, and a pressure sensor electrically connected with the air pump. The pressure sensor is arranged on a pipeline of the hose B. According to the air bag for overhauling the petroleum pipeline, due to the arrangement of the air bag body, petroleum at the two ends of the inside of the air bag body only needs to be fully pumped during first-aid repair, the operating procedure is simple, time and labor are saved, and working efficiency is greatly improved.

A microspur light supplement module with flexible circuit boards is used in cooperation with an optical imaging resolution device, the optical imaging resolution device is provided with a light entrance, and the microspur light supplement module is correspondingly arranged at the light entrance. The microspur light supplement module comprises a sleeve barrel, at least one circuit board component, a set of light emitting component and a set of angle adjusting component, wherein the circuit board component comprises at least one flexible circuit board and multiple composite board areas with hard board gaskets respectively, the circuit board component is arranged on the sleeve barrel in a set mode, the light emitting component comprises multiple light emitting elements which are arranged in the composite board areas respectively and provided with light emitting faces respectively, and the angle adjusting component comprises multiple pivotal pieces which drive the composite board areas to rotate relative to the sleeve barrel in a pivot mode respectively and to adjust the light emitting angles of the light emitting elements.

The invention relates to a water pump cable, which comprises a cable body, the cable body comprises a sub-cable and an outer rubber sheet, the cable body is provided with a sealing joint, the sealing joint is provided with an embedded part, a main wire hole and a branch wire hole, the sealing joint is provided with a pressing piece, and the pressing piece is provided with a bolt and an avoiding hole in a penetrating manner. The pressing piece is provided with a side sealing reinforcing device, the side sealing reinforcing device comprises a connecting rod and an extrusion plate, the connecting rod is provided with a circular piece, the pressing piece is provided with a rotating groove and an embedding groove, the sealing joint is fixedly provided with a mounting ring, the mounting ring is provided with a pressing strip, the extrusion plate is provided with a push strip, the pressing strip is provided with a wedge-shaped surface, the mounting ring is provided with a guide ring, and the guide ring is provided with a guide groove. The pressing strip is provided with a sharp part, and the guide ring is provided with an abutting part. The branch wire hole is attached to the cable, so that water is not prone to entering the water pump from the damaged part of the cable; and by arranging the side sealing reinforcing device, the sealing performance between the sealing joint and the inner wall of the water pump wire inlet is improved.

The invention relates to a rubber-plastic sponge manufacturing and processing technology, and relates to the technical field of rubber-plastic sponge production equipment. Rubber-plastic sponge cutting equipment is used and comprises a cutting device for cutting rubber-plastic sponge, a fixed traction device for fixedly dragging the rubber-plastic sponge and an adjusting piece for adjusting the cutting length. The rubber-plastic sponge cutting equipment has the effects that the working intensity is reduced and the working efficiency is improved in the cutting process of the rubber-plastic sponge.

The invention relates to the technical field of closure in orthopedics department, in particular to a closed needle threading device for the orthopedics department. The closed needle threading devicefor the orthopedics department comprises a bottom plate, wherein a support rod in vertical arrangement is fixedly arranged on the upper end of the bottom plate; the upper end of the support rod is fixedly provided with a horizontal fixing plate; the upper end of the fixing plate is fixedly provided with a vertical fixing rod; the cross section of the fixing rod is in a square shape; a sleeve is connected onto a rod body of the fixing rod in a sleeving way; a horizontal first needle threading tube is fixedly connected onto the side wall of the sleeve; a vertical connecting rod is connected ontothe outer wall of the first needle threading tube; the other end of the connecting rod is connected with a horizontal fixing tube; and the fixing tube is parallel to the first needle threading tube.When the closed needle threading device is used for needle threading, and the needle threading tube needs to be removed, the first needle threading tube and a second needle threading tube can be separated from a Kirschner wire only by exhausting compressed air inside an air bag. The Kirschner wire cannot be easily pulled in the separation process, and adverse influence cannot be easily caused.

The invention relates to the technical field of car window assemblies, in particular to a car window assembly with a decorating part. The assembly comprises a transparent plate, a sealing part fixed on the transparent plate and a decorating part fixed on the sealing part. The assembly is characterized in that: the end part of the decorating part is provided with a first matching part, the sealing part is provided with a second matching part matched and connected with the first matching part, and the outer side wall of the first matching part and the outer side wall of the second matching part form continuous transition. The assembly has the advantages that: no segment difference exists at the joint of the decorating part and the sealing part, and the smooth, continuous or flush appearance effect can be achieved.

The invention relates to a loading tray for logistics cargo transportation, and belongs to the field of containers for storage or transportation of articles or materials. The loading tray comprises a base, brake moving mechanisms are arranged on the front side and the rear side of the base, and by arranging the brake moving mechanisms, after a crawler belt makes contact with stairs, by pulling the brake moving mechanisms, the base moves on the stairs under the action of the crawler belt and a belt pulley, movement is stable, fluctuation is not prone to occurring, and the labor intensity of logistics workers carrying the carrying tray to walk on the stairs is reduced; and by arranging rolling wheels, a second spring and a round rod, people can operate an inserting rod, after the end portion of the inserting rod is separated from the interior of an inserting groove, the rotation direction of a rotating plate can be adjusted, so that when the loading tray is used on the stairs, the crawler belt can make contact with the stairs and move, when the loading tray is used on a flat road surface, idler wheels can make contact with the ground, the crawler belt with large friction force is separated from the ground, and people can use the loading tray conveniently.

The invention belongs to the field of electric power construction, and particularly relates to a cable pulling device used in electric power engineering. The cable pulling device used in the electricpower engineering comprises a telescopic shaft, a torque limiter, a hold-down mechanism and the like, and a telescopic outer sleeve of the telescopic shaft is matched with a first axle hole bearing onthe side surface of a shell; according to the cable pulling device used in the electric power engineering, after a motor in an dynamic drive module stops operating, a cable cannot be released out from a cable winch, two fourth rollers can extrude the cable, friction between the fourth rollers and the cable enables the cable to be not prone to being pulled, and continuous performing of the construction is not affected; according to a first roller, after the motor stops, a volute spiral spring releases energy so as to enable a second roller to continuously rotate at some angles in the rotationdirection of the second roller, and a certain cable allowance is reserved for cable construction; and the second roller pulls out a part of the cable from the cable winch, the cable between the firstroller and the second roller is in a loosening state, damage of corner angles on fallen heavy objects to the outer skin of the cable is avoided, and effective pavement and electric power constructionsafety operation are ensured.

The invention brings forward a stator assembly. Conventionally, after a wire harness assembly is connected with a wiring end of a stator enameled wire, insulation is realized through externally sleeving a thermal sleeve, and then the wiring end is hidden in the enameled wire. The stator assembly provided by the invention is characterized by further comprising a wiring clamp, the wiring clamp is provided with plugging holes for plugging wiring ends, the wiring clamp is provided with wire harness clamping grooves for clamping wire harness assemblies, wire harness leads and the wiring ends of lead terminals are inserted into the plugging holes, and the wire harness leads are in clamping connection with the wire harness clamping grooves; and the wiring clamp is provided with a bottom surface, plugging segments are arranged on the wiring clamp in the direction parallel to the bottom surface in an extending mode, the bottom surfaces of the plugging segments are flush with the bottom surface of the wiring clamp, the two ends of each first insulation sleeve are exposed outside installation holes, a plugging groove is formed between two adjacent first insulation sleeved, and the plugging segments are plugged into the plugging grooves. The stator assembly is simple in structure, reasonable in design, convenient to install and reliable in connection.

The invention provides a letter and number mechanical coded lock. The letter and number mechanical coded lock sequentially comprises a handle, a code confirming part, a spring bolt and a connecting rod penetrating through the handle and the code confirming part. An interval exists between one end of the connecting rod and the spring bolt. At least two parallel code rotary discs are arranged in the code confirming part, through holes through which the connecting rod penetrates are formed in the centers of the code rotary discs, and grooves are formed in the edges of the through holes. A plurality of code grooves are formed in the peripheral edges of the code rotary discs. A connecting rod sliding groove is connected with a movable head protruding from the connecting rod, and horizontal elastic pieces of a movable part in the movable head are inserted into lower positions of inclined surfaces of inclined surface grooves of inclined surface groove pieces. A restoration elastic piece clamped between the two inclined surface groove pieces enables the horizontal elastic pieces to break away from the inclined surface grooves when turning upwards. The safety performance of the coded lock is very outstanding, when a code is not correct, the code rotary discs touch the restoration elastic piece, and the restoration elastic piece lifts up the horizontal elastic pieces so that the inclined surface groove pieces can break away from the limitation of the horizontal elastic pieces and return to the original positions. A metal round ball in a safe box makes sound, and the internal action sound is prevented from leaking outwards.