85results about How to "Suitable for assembly line work" patented technology

The invention discloses UV-curable elastic polyurethane acrylate emulsion and a synthesis method thereof. The synthesis method of the UV-curable elastic polyurethane acrylate emulsion comprises the following steps: carrying out reaction on polyester glycol or polyether glycol, carboxylic acid-containing glycol and diisocyanate to generate a prepolymer, adding an optimized micromolecular chain extender for carrying out chain extension, then adding hydroxy-containing acrylate for carrying out blocking reaction, diluting by virtue of an organic solvent, neutralizing and salifying by adopting organic amine, finally adding deionized water for carrying out hydration, and adding a photoinitiator to obtain the UV-curable elastic polyurethane acrylate emulsion. The UV-curable elastic polyurethane acrylate emulsion is polyurethane blocked by acrylate, and a molecular chain of the UV-curable elastic polyurethane acrylate emulsion is provided with hydrophilic negative ions and double bonds, so that the UV-curable elastic polyurethane acrylate emulsion has self-emulsifying property and photocuring activity; and a cured film formed by carrying out photocuring on the synthesized elastic polyurethane acrylate emulsion has excellent mechanical properties, tensile strength is 21MPa, and elongation is 350%, so that the elastic polyurethane acrylate emulsion can serve as matrix resin of water-based ink and waterborne UV-curable elastic paint.

The invention discloses a deep ultraviolet LED packaging device. The device comprises a metal substrate, a deep ultraviolet chip, an optical element, an intermediate insulating layer and a first metal eutectic bonding layer, wherein a positive electrode region and a negative electrode region of the metal substrate are separated by the intermediate insulating layer; the deep ultraviolet chip is fixed on the metal substrate and electrically connected with the positive electrode region and the negative electrode region of the metal substrate; the optical element is fixed on the metal substrate through the first metal eutectic bonding layer and completely wraps the deep ultraviolet chip; the device further comprises an SiO2 insulating layer which covers the inner surface of the intermediate insulating layer. The invention further discloses a preparation method of the deep ultraviolet LED packaging device. The deep ultraviolet LED packaging device has the advantages of high luminous power, good heat dissipation, significantly improved product reliability and significantly prolonged service life, the packaging structure is simple, and reduction of the preparation cost is facilitated; the preparation method of the deep ultraviolet LED packaging device is simple and easy in process, suitable for production line work and high in preparation efficiency.

The invention discloses a water-testing seal plug and a water testing method, and the water-testing seal plug comprises a housing, a cam, a handle, an expansion mechanism, a front retaining ring and a seal ring, wherein the cam comprises two cam contact surfaces which are connected by a plurality of arcs and located at the different distances from the rotating axle center of the cam, and a rotating shaft of the cam is connected with the handle and the expansion mechanism; and the expansion mechanism comprises an expansion body and an expansion block, a groove is formed on the outer surface ofa ladder of the expansion block and a tension spring is placed in the groove and used for clamping and binding the expansion block on the expansion body. When in use, the water-testing seal plug is aligned with an electric heating port, the handle is adjusted to the horizontal position, the expansion body moves upwards, the expansion block becomes large uniformly on the inner side of the tension spring, then the electric heating mounting port is further tightened, and the seal ring simultaneously enters into a concave groove of an electric heating flange plate for compression and sealing so as to achieve the water testing purpose. The water-testing seal plug is simple in structure and convenient to operate, as long as the cam is pressed into the appropriate position by an employee, the expansion block can expand so as to achieve the effect of fixing with the electric heating port, the water-testing seal plug is applicable to line production and the production efficiency is greatly improved.

The invention discloses a method for decorating domestic ceramic underglaze color. The method comprises the following steps of: making a pattern to be printed by utilizing hands or a pair of scissors, weighing quantitative pigment, a material mixing agent and water, preparing an underglaze color pigment, dipping the prepared underglaze color pigment onto one surface of a sponge with the pattern, pressing the one surface, which is dipped with the underglaze color pigment, of the sponge on a green body, printing the pattern on the green body, painting a clear glaze, drying the clear glaze, and placing the green body in a kiln to burn after drying. The method disclosed by the invention has the advantages that the cost of raw materials is low and easy to machine, the partial surface of a device, the whole surface of the device, a flat surface and a curved surface of the device are printed, and the different colors are utilized to overprint according to picture requirements; and the method is simple, convenient and rapid to operate, less in loss of the raw materials, suitable for production line flow process, wide in application range and strong in practicability and has the strong popularization and application values.

The invention discloses an oven for baking big lithium ion battery pole piece rolls. The oven comprises an oven body used for containing the big lithium ion battery pole piece rolls. The oven body is of a square structure. A front oven door and a rear oven door are arranged on the front side and the rear side of the oven body respectively. At least two driving gears are arranged at the bottom of the oven body. The driving gears are connected with a driving motor used for providing power for the driving gears. A conveyer belt is wound between the driving gears. The big lithium ion battery pole piece rolls are sequentially placed on pole piece supports in the oven body from the front oven door, the driving motor is controlled to operate so that the big lithium ion battery pole piece rolls can be conveyed into the oven body, and the big lithium ion battery pole piece rolls are sequentially conveyed out of the oven body from the rear oven door after baking is completed. According to the oven, a plurality of big lithium ion battery pole piece rolls can be baked at the same time, and the situations that the big lithium ion battery pole piece rolls need to be pushed into an oven manually one by one during baking and also need to be taken out of the oven manually one by one after baking is completed are effectively avoided; labor is saved, working efficiency is also improved, and the oven is suitable for line production.

The invention provides an automatic air exhaust device and method for packaging bags. The automatic air exhaust device of the packaging bags comprises air exhaust rollers (3), a belt (4) and supports (7), wherein the supports (7) are fixedly mounted on the two opposite sides of the belt (4) and provided with guide slots (6); the belt (4) is supported by belt wheels (5) and moves synchronously along with rotation of the belt wheels (5); the air exhaust rollers (3) are arranged on the belt (4) in a stretching across mode through cooperation between roller shafts (31) and the guide slots (6); and while the packaging bags (1) on the belt (4) move along with the belt (4) and pass the portions below the air exhaust rollers (3), the air exhaust rollers (3) exhaust air in the packaging bags (1) by rolling the packaging bags (1). As the air exhaust rollers roll the packaging bags to exhaust air, the air exhaust quality of the packaging bags is improved; and the automatic air exhaust device and method are particularly suitable for the assembly line work of a packaging machine, and have the outstanding advantages of the simple structure, convenient operations and the like.

The invention relates to a method for manufacturing a colorful multi-flavor egg, which relates to a method for manufacturing a poultry egg. The method aims to solve the problems that the prior tea egg, the prior preserved egg, the prior redneck egg and so on are manufactured by purely adding taste feel on the poultry egg and the nutrition and the stimulus to the sense organ of the egg product are not increased, and the method for preparing a spiced egg has long heating time and the nutritive components in the egg product are damaged. The method comprises the following steps: the poultry egg is selected; juice is prepared; egg cream is prepared; mixture is respectively reinjected into the poultry egg of which the egg white is extracted; a filling opening of the poultry egg after injection is stood upwards for 3 to 4 hours; and the poultry egg after being stood is placed into a saucepan and kept for 3.5 to 6 minutes at a temperature of 100 DEG C. The egg white has four colors respectively, wherein the egg white with tea flavor is magneta, the egg white with shrimp flavor is pale green, the egg white with tomato flavor is light red, and the egg white with cumin flavor is pale yellow. The colors and the flavors of the egg white are different; the nutritive components of the egg are different; and the nutritive components are kept well.

The invention discloses a self-heating moxibustion stick which comprises self-heating materials and a seal package. The seal package comprises a body, a seal layer and an adhesive sticker, air holes are formed in the stick body, and each of the air holes is covered with an air-tight seal film; in addition, the invention further discloses a bubble cap air hole forming device and a production line of the self-heating moxibustion stick, and the device comprises a frame, and a bubble cap forming device, an air hole forming device, a basement membrane stick device, a padding device, a first heat-seal device, an unguent adding device, a second heat-seal device and a die cutting device which are arranged on the frame and connected successively. The self-heating moxibustion stick is small in size, long in heating time, high in heating speed, stable in temperature, and convenient to carry and use. The bubble cap air hole forming device is simple in structure, high in reliability, and suitable for production line operations; the production line of the self-heating moxibustion stick is of an industrial assembly line large-scale production system, and is easy and reasonable in structure, and high in reliability and production efficiency.

The invention discloses a method for bonding upper and lower magnetic cores of a module power supply. The upper and lower magnetic cores of the module power supply are bonded on a PCB (printed circuit board) of the module power supply, and the method comprises the step of bonding and the step of baking and curing. The step of bonding comprises the following steps: A1) the lower magnetic cores are fixed on a prepared jig, and adhesive dispensation is carried out on the bonding positions of the lower magnetic cores and the PCB of the module power supply, and on the bonding positions of the lower magnetic cores and the upper magnetic cores; A2) the PCB of the module power supply and the lower magnetic cores are aligned and covered, so the bonding positions of the upper and lower magnetic cores pass through corresponding installation holes on the PCB of the module power supply, and the position of the PCB of the module power supply is fixed through the jig after aligning and covering; and A3) the upper magnetic cores are bonded on the lower magnetic cores. The method disclosed by the invention has the beneficial effects of high production efficiency and low reject ratio of products.

The invention belongs to the optical detection field, and discloses a rapid positioning device and positioning method for optical system test. The positioning device records the test posture of a standard optical system on a test device; after a tested optical system is changed, the posture reappears on the test device; the posture goes through a series of conversion through the positioning device; the normal direction of a benchmark mirror represents the test posture of the optical system, and the optical axis of an auto-collimation light pipe is used as the standard of a standard posture; in replacing the tested optical system again, the posture can reappear only by employing a two-dimensional platform to adjust the benchmark mirror normal to be parallel with the optical axis of an auto-collimation light pipe. The device has the characteristics of simple structure and high positioning accuracy, is suitable for assembly line work of mass products, and can directly perform test of relative specifications after positioning, thereby avoid a debugging process before test in the prior art.

The invention discloses an automatic plate turnover machine with weighing function which comprises a rack, a control system, a weighing frame, a turnover board, a drive motor and a weighing device. The weighing frame and the flip board are arranged above the rack, the drive motor and the weighing device are arranged below the rack; the flip board is arranged below the weighing frame and one end of the flip board is connected with the rack through a rotating shaft, the flip board is capable of penetrating through the weighing frame and rotating 180 degrees around the shaft; the weighing frame is connected with the weighing device, and both the weighing device and the drive motor are connected with the control system. By the automatic weighing flap machine, products can be turned over after automatic weighing and fall in the packing box which is placed on one side of the machine, so that workers can clear up products conveniently, the labor is reduced, and work efficiency is increased.

The combined water tap is made with stainless steel or other metal plate, and through punching into handle, water tap casing and valve seat, welding, adhering or screw connecting these three parts into one integral, and installing the valve core into the valve seat. The present invention has the advantages of less material consumption, simple making process, low power consumption, less pollution and capacity of obtaining various appearances.

The invention relates to an electrostatic spraying method for medium-density fiberboard powder coatings. According to the technical scheme, the electrostatic spraying method comprises the steps of rough grinding and fine grinding a cut medium-density fiberboard step by step, blowing off surface powder with compressed air, and then preheating the medium-density fiberboard in an infrared heater at 20-120 DEG C for 1-2 min to obtain the preheated medium-density fiberboard. By adopting the electrostatic spraying method, leveling powder coatings are evenly applied to the surface of the preheated medium-density fiberboard, and the thickness of the power coating after spraying is 100-200 [mu]m; the medium-density fiberboard after electrostatic dusting is obtained. The medium-density fiberboard after electrostatic dusting is placed in the infrared heater, and melted and cured for 5-10 min at 140-170 DEG C, so that the medium-density fiberboard electrostatically coated with the powder coatingsis obtained. The electrostatic spraying method provided by the invention is simple in technology, applicable for industrial production, environmentally friendly, and free from pollution; the power coating of the obtained product is smooth flat, high in adhesion, and excellent in chemical resistance and water resistance.

The invention discloses a leak detection method for an electrical heating tube orifice of an inner container of a solar water heater. The method comprises the followings steps that: (1), a sealable tank is covered outside an electrical heating tube orifice on an inner container on which an electrical heater has been installed; (2), vacuum pumping is carried out on the sealable tank so as to enable the sealable tank to be absorbed on the inner container; (3), gas filling is carried out on the inner container; (4), the inner container is rotated and it is determined whether the electrical heating tube orifice is leaked or not according to the state of the sealable tank; if the sealable tank falls from the inner container, it demonstrated that the electrical heating tube orifice is leaked; if the sealable tank does not fall from the inner container, it is demonstrated that the electrical heating tube orifice is not leaked. According to the invention, air pressures at two side of an electrical heating tube orifice on an inner container are changed, so that it can be detected whether the electrical heating tube orifice is leaked and it is necessary to carry out leak detection by using water; therefore, an electrical heater can be installed before detection and the leakage effect is better than that of the leak detection by using water. Besides, it is not needed to sealing the electrical heating tube orifice additionally during the detection; and the detection is simple and the detection efficiency is high.

The invention discloses an electric energy metering assembly structure comprising a base plate or a base box and at least one of a phase line branching bank, a zero line branching bank and a ground line branching bank. The base plate or the base box is provided with a device for installing a metering device. The phase line branching bank, the zero line branching bank and the ground line branching bank are movably connected with the base plate or the base box. The base plate or the base box is correspondingly provided with a device for installing the phase line branching bank, a device for installing the zero line branching bank and a device for installing the ground line branching bank. The electric energy metering assembly structure provided by the invention overcomes such defects of the previous electricity meter boxes as heaviness, high cost, severe consumption and waste of the box materials and line materials, inconvenient management and maintenance and the like, and has the advantages of low production cost, small volume, little leads, convenient installation, simple structure, good suitability for assembly line work, strong universality, convenient management and the like.

The invention belongs to the field of paint manufacturing, and especially relates to a superfast-drying, anti-adhesion, and anticorrosion paint for casting pipes. The paint is characterized by comprising thermoplastic acrylic resin liquid, petroleum resin liquid, modified polyurethane resin, dispersant, bentonite, iron black, barite powder, xylene, cobalt naphthenate, chlorinated paraffin, and levelling agent. Compared with the conventional paint, the provided paint has the characteristics that the paint can be dried at a room temperature, and the drying speed is quick. The energy is saved and the consumption is reduced. The requirements of fast coating can be met. The paint can be sprayed on products at a room temperature, after 30 minutes the products can be piled together, and the products will not be adhered to each other. The processed products are suitable for streamline operation, the products are knocked with each other, the coating will not be damaged, and thus the problems of coating aging and cast pipe rusting due to outdoor storage and ocean transportation are solved.

The invention provides a gluing device for packing paper. A gluing mechanism comprises a glue storage groove, a gluing roller, a pressing roller, a first driving device, a second driving device and a liquid level sensor. The gluing roller is located above the glue storage groove and is driven by the first driving device to rotate. The pressing roller is located above the gluing roller. A gluing channel allowing the packing paper to penetrate is formed between the pressing roller and the gluing roller. The liquid level sensor is arranged inside the glue storage groove and is connected with a controller arranged on a rack. An output shaft of the second driving device is in driving connection with the glue storage groove. The controller is connected with the second driving device. A material discharging mechanism comprises a driving roller, a driven roller, a conveyor belt and a third driving device. The driving roller is driven by the third driving device to rotate. The driving roller and the driven roller are connected through the conveyor belt. The gluing device for the packing paper is high in continuity and stability, low in labor intensity, high in machining efficiency and processing capability, and suitable for factory-like assembly line operation.

The invention relates to a radix polygonati officinalis slice separating device and a using method thereof, and belongs to the technical field of traditional Chinese medicine decoction piece dehydrating equipment. The device comprises a slide rail, and further comprises an edge drying part and a widowing separating box which are arranged along the slide rail as well as a wind pumping mechanism, wherein a radix polygonati officinalis side floor stand is arranged on the slide rail in a sliding mode; the radix polygonati officinalis side floor stand can move to a position below the edge drying part or the windowing separating box; the windowing separating box is of a box body structure with a top opening, and a plurality of strip-shaped holes capable of allowing radix polygonati officinalis slices to pass through are formed in the bottom of the windowing separating box; the bottoms at the two sides of the windowing separating box are equipped with a cavity which communicates with the inner part of the windowing separating box; a wind ball is arranged in the cavity through a rotary shaft; a penetrating gas path is arranged on the wind ball; and the direction of the gas path of the windball can be regulated by rotating the rotary shaft. The radix polygonati officinalis slice separating device realizes preliminary air-drying and raising of radix polygonati officinalis slices, and the raised radix polygonati officinalis slices enter the radix polygonati officinalis slice side floor stand through the strip-shaped holes; and the radix polygonati officinalis slices are conveyed to anext station through the radix polygonati officinalis slice side floor stand, so that continuous processing of the radix polygonati officinalis slices is favorably realized, and streamlined operationis realized.

The invention discloses a method for conveniently pouring an electrochromic liquid into an electrochromic rearview mirror. The method comprises the steps that a glass shell is manufactured, wherein the glass shell is formed by bonding a front glass substrate and a rear glass substrate through epoxy resin glue on the periphery of the front glass substrate and the periphery of the rear glass substrate, a liquid inlet opening is formed in one end of the glass shell, and a liquid outlet opening is formed in the other end of the glass shell; the electrochromic liquid is vacuumized to eliminate airin the electrochromic liquid before pouring; and in a normal-pressure environment, the liquid inlet opening is soaked in the electrochromic liquid, the electrochromic liquid flows into an inner cavityof the glass shell from the liquid inlet opening in a suction or pressure injection mode, and when the electrochromic liquid reaches the liquid outlet opening, the liquid inlet opening and the liquidoutlet opening are sealed and closed by using colloid. The method has the advantages that the electrochromic liquid can be filled in a normal-pressure environment, the filling operation is simple, and the manufacturing is convenient.

The invention provides a safe door opening structure of a marking machine. The safe door opening structure of the marking machine is characterized by comprising a base of the marking machine, and a supporting frame, wherein a marking platform for positioning a marking object is arranged on the base; a covering housing is arranged on the base; the supporting frame is arranged on the base and is positioned in the covering housing; a door hole is formed in one side of the covering housing, and a door plate which can slide up and down is mounted on the door hole. The safe door opening structure ofthe marking machine further comprises a door driving motor which is arranged in the covering housing, and a transmission strip for connecting the door driving motor and a door board; the rotating output end of the door driving motor is in transmission connection with the transmission strip; the door driving motor drives the transmission strip to drive the door board to slide up and down. The safedoor opening structure of the marking machine further comprises a steel rope coiling device which is arranged at the upper end of the covering housing. According to the safe door opening structure ofthe marking machine, the transmission strip, a steel rope and an embedding guide rail structure are arranged, so that the door board can be directly connected to the covering housing; mechanical structures are matched with each other to drive a door to open and close; the structure and the mounting are simple; the flow process can be carried out, so that the practicability of the marking machineis improved; and meanwhile, the problem of potential risk in a door opening structure of the marking machine in the prior art can be solved.

The invention discloses a badminton head clamping device for badminton production. The device comprises a rotating seat, a base, a plurality of badminton head clamps, a first transmission shaft, a gear set and a push piece, the rotating seat is arranged above the base, the rotating seat is rotatably connected with the base, the first transmission shaft is fixedly mounted on the upper wall of the rotating seat, and the plurality of badminton head clamps are mounted on the side wall of the rotating seat; and the badminton head clamps are rotatably connected with the rotating seat, the gear set is installed on the top of the base and rotatably connected with the base, a supporting rod is fixedly installed on the top of the base, and a push plate is fixedly installed on the supporting rod. Compared with the prior art, the badminton head clamping device has the advantages that the badminton head clamps are installed in the rotating base, the rotating base and the gear set drive the badminton head clamps to rotate so as to be matched with filling, trepanning, feather inserting and other work, the work efficiency is improved, the cost is saved, and the badminton head clamping device is more suitable for assembly line work; and when thebadminton rotates to the left side of the rotating seat, the push rod and an ejector rod can automatically push out the badminton.

The invention provides an inner gear ring cross-rod distance on-line measuring tool and a measuring method thereof, wherein the measuring tool comprises four gear teeth used for detecting a gear, theincluded angle of the four gear teeth is 90 degrees, and each gear tooth is provided with an installation groove distributed along the radial direction; the four mounting grooves are used for mountinga pair of first measuring units and a pair of second measuring units; the first measuring unit and the second measuring unit are fixedly arranged close to one end surface of the detection gear center; each of the first measuring unit and the second measuring unit comprises a measuring rod, a measuring seat, a permanent magnet, a spring and an electromagnet. According to the invention, the electromagnet loses power to release the permanent magnet, the spring pushes the measuring seat to move along the radial direction, after the equivalent rod abuts against the tooth surface of the inner toothgroove, the fixed displacement values acquired by all the displacement sensors are recorded; finally, the average value of the sum of the fixed displacement values is calculated, which is the cross-rod distance of the inner gear ring. Therefore, rapid on-line measurement of the span rod is realized.

The invention provides a novel electric chuck device based on a PLC control device. The device comprises a clamping jaw, a chuck, a manual rotary hole, a pressure sensitive sensor, a clamping plate, a chuck housing, a PLC control device, a straightness measurer, a transmission shaft, a power hanger, a bearing, a motor, a shaft sleeve, a machine tool body and a wire. The clamping jaw is arranged on the left side of the chuck. The manual rotary knob is arranged on the rotating side surface of the chuck. The pressure sensitive sensor is arranged between the clamping plate and the chuck housing. The PLC control device is connected with the motor through the wire. The straightness measurer is arranged between the transmission shaft and the shaft sleeve. The power hanger is arranged on the right side of the machine tool body. The bearing is arranged on the upper part of the transmission shaft. The arrangement of the PLC control device, the pressure sensitive sensor, and the straightness measurer makes automation degree improved. The device is convenient in operation, improves efficiency, ensures safety, improves processing precision, and is easy to popularize and use.

The invention discloses a novel profile cutting device for a tempered film, which belongs to the technical field of tempered film technology, and aims to solve the problems of complex structure, fussyflow and low efficiency of the tempered film cutting device in the prior art and provide a novel profile cutting device for a tempered film with simple structure, convenient operation and higher efficiency. The novel profile cutting device for a tempered film comprises a workbench. One side of the workbench is provided with a tempered film fixing platform. A sliding block is arranged on the workbench. A cavity is arranged in the sliding block. The shape of the inner wall of the cavity is matched with the shape of the required tempered film. The inner wall of the cavity is also provided with adriving wheel in contact mode. One side of the sliding block, near the tempered film fixing platform, is connected with a cutting knife through a connecting rod. The novel profile cutting device fora tempered film has the advantages of simple structure, stability, accuracy and high efficiency and can be applied to the cutting of the tempered film with various required shapes by changing the shape of the inner wall of the cavity of the sliding block. It is suitable for promotion.

The invention relates to a novel box sealing machine, which belongs to the technical field of mechanical equipment. The novel case sealing machine includes supporting legs, an operating platform, an upper sealing head, a fixing column of the sealing head and a fixing plate of the upper sealing head. A new type of box sealing machine involved in the present invention can quickly remove the upper sealing head, which facilitates the replacement of the tape by the lower sealing head, and can continue to complete the sealing operation without adjusting the height of the upper sealing head . In addition, the carton sealing machine has a simple structure, is safe, stable, convenient and reliable to use, can make the sealed cartons uniform and beautiful, reduces the labor intensity of workers, is suitable for assembly line operations, and is suitable for popularization and use.

The invention provides an integrated double-pulled machine cover lock and an assembling process thereof. The machine cover lock is characterized in that a microswitch of the machine cover lock is fixed in a microswitch mounting base, and pins of the microswitch are connected with a wire harness through tin soldering; clamping grooves are symmetrically formed in the left side and the right side ofa lock body correspondingly, compression spring guide pipes are arranged in the clamping grooves, push rods sleeve the compression spring guide pipes, and compression springs are arranged between thecompression spring guide pipes and the push rods; a ratchet shaft and a pawl shaft are arranged in the lock body, a ratchet torsion spring and a ratchet are arranged on the ratchet shaft, a pawl torsion spring and a pawl are arranged on the pawl shaft, the pawl is meshed with the ratchet, a ratchet buffer block is arranged between the ratchet shaft and the pawl shaft, the position of the microswitch corresponds to the position of the ratchet, the ratchet is released by pulling the pawl, and the ratchet is enabled to be in contact with the microswitch. The machine cover lock has the advantagesof being compact in structure, high in transmission efficiency, good in stability, safe and reliable, small in size, more flexible in use, simple in assembling process, convenient and rapid, and suitable for line production; and the production efficiency is improved, and the production cost is reduced.

The invention provides a hinge device of a toilet lid, which consists of a tray, a bolt and a hinge assembly, wherein the hinge assembly consists of a hinge piece, a pivot shaft and a column sleeve; one end of the bolt is fixed on the tray, while the other end is in plug connection with the column sleeve of the hinge assembly; and simultaneously the column sleeve and the hinge piece are sleeved on the pivot shaft, the pivot shaft are movably connected with the column sleeve and the hinge piece, and the components can be dismounted movably. The hinge device of the toilet lid can be mounted and dismounted conveniently, and simultaneously the components can be replaced freely, so hinge parts can be replaced and dismounted freely.