82results about How to "Easy to use and install" patented technology

A locking astragal with self positioning seal that automatically positions at least one seal at the lower end of an astragal adjacent the threshold sill of a door frame, and prevents drafts at the vicinity of the lower end of the astragal and the threshold sill, and/or automatically positions at least one seal at the upper end of the astragal adjacent the header of the door frame, and prevent drafts at the vicinity of the header. The self positioning seal independently positions itself abuttingly adjacent the sill and/or the header when the astragal's bolts are extended from a retracted position to an extended position and are received by the upper and/or lower apertures in the upper and/or lower portions of the door frame, the astragal having locks for locking the bolts into the extended position, and can be used with a variety of thresholds, sills, headers, doors, and door frames

The invention discloses a multifunctional water softening valve. The valve comprises a valve body, a cover, an ejector, a fixed valve plate and a moving valve plate, wherein the moving valve plate is connected with a valve rod; the water softening valve is provided with a water inlet, a water outlet, a drain outlet, a filter element outside connector, a filter element inside connector and a salt absorption hole; and an ejector outlet and an ejector inlet flow passage are also arranged in the water softening valve. The valve is characterized in that six through holes are arranged on the fixed valve plate; the first and second through holes are communicated with the filter element outside connector; the third through hole is communicated with the filter element inside connector; the fourth through hole is communicated with the water outlet; the fifth through hole is communicated with the ejector outlet; the sixth through hole is communicated with the ejector inlet; the moving valve plate is provided with a water inlet channel, a communication blind hole and a sewage draining channel; the sewage draining channel is communicated with the drain outlet; the fixed valve plate and the moving valve plate are sealed by end faces; and different flow passages are formed by rotating the moving valve plate. The valve has the beneficial effects of practicability, high flow, environment friendliness and convenience in use and installation.

An anchor bolt locator is provided that is inexpensively manufactured on automatic die-press machines from sheet steel and a structural nut that does not require any welding, while also being easy to use and install with current, commonly-used building practices and anchor designs. The anchor bolt locator is made from a galvanized sheet metal chair and a structural nut attached to the chair by way of a friction fit.

The invention relates to a remotely pre-recorded light-triggered lightning stroke on-line shooting device and a lightning stroke detection method thereof. The device comprises more than one light-triggered lightning stroke on-line shooting device and a remote monitoring center, wherein the light-triggered lightning stroke on-line shooting device comprises a camera, a light trigger, a solar panel, an antenna and a terminal, and the terminal consists of a lightning stroke communication recording unit, a power supply controller and a battery. The invention realizes lightning stroke light automatic triggering recording, counts seconds in advance to pre-record and catch lightning stroke images, and can avoid back light interference to realize day and night all-weather on-line monitoring, wireless communication network is used for data transmission, solar energy is used for self power supply, and the device has the characteristics of simple structure, rapid response, timely triggering, strong anti-interference performance, high reliability and the like, and is convenient to use and install. The device and the method disclosed by the invention can be widely used for the lightning stroke on-line shooting of overhead transmission lines, buildings or other ground objects, and are especially appropriate for the lightning stroke on-line shooting of 110 kV-1000 kV overhead transmission lines.

The invention discloses a novel sewage tank. Enough oxygen is provided for a microorganism through generating continuous micro-bubbles at the bottom of a tank body; a carrier for apposition growth is provided for the microorganism through a biological active filling; the metabolic efficiency of the microorganism is enhanced; meanwhile, sewage forms up-and-down convection in the tank body under the actions of a gravity current and the micro-bubbles to generate agitation; dirt cannot precipitate; the suspended carrier is also enabled to migrate and spread all over in the tank along with a water current; an agent is uniformly mixed; the purpose of purification treatment is effectively achieved.

The invention provides a corrugated pipe coaxial cable connector comprising a muff-coupling helicoid and an termination section. The coaxial cable is covered by the muff-coupling helicoid, an external thread is opened on a front end outer diameter surface of the muff-coupling helicoid, and a chamfer angle is arranged on an inner diameter at the front end port. The termination section is divided into a termination segment and an inserting segment for the axial direction forward and backward two segments. The termination segment is used for terminal connection with the coaxial cable. The inserting segment is used for inserting cooperation with other cable plugs. The termination segment comprises an external conductor, an isolator and a center conductor. The external conductor is provided with a thin wall barrel-shaped outer wall, and an internal thread matched with the external thread on the muff-coupling helicoid front end outer diameter surface is arranged on the internal diameter. A first step is arranged at the bottom of the external conductor internal diameter surface, and a ring conical convex with a cone matching with the chamfer angle of the muff-coupling helicoid is arranged along the first step edge. The technical scheme of the invention totally cancels the arrangement of a clamping ring and obtains a firm holding.

Provided is an ultrahigh-temperature heat-insulation device. The ultrahigh-temperature heat-insulation device comprises a carbon-carbon material layer, a high-temperature-resisting material layer and an outer wall stainless steel layer, wherein the carbon-carbon material layer is arranged on the surface of a thermal device and the surface of a pipeline in an internally attached mode, the high-temperature-resisting material layer is arranged in the middle, and at least two heat insulation cushion blocks are arranged between the carbon-carbon material layer and the surface of the thermal device and pipeline. The ultrahigh-temperature heat-insulation device is formed by heat insulation blocks through hasps or binding bands in a fixed connection mode, at least one section or part of the surface, on the outer side of the carbon-carbon material layer, of each heat insulation block is consistent with the outer surface of the thermal device and pipeline, and is provided with an inner frame body which is filled with the high-temperature-resisting material layer, the outer wall stainless steel layer is fastened on the inner frame body through fasteners, the outer surface of the outer wall stainless steel layer is of a plane shape or an arc shape or a semi-circle shape, or the shape of the outer surface of the outer wall stainless steel layer is consistent with the shape of the surface of the outer side of the carbon-carbon material layer. The ultrahigh-temperature heat-insulation device has the advantages of being simple in structure, mainly applicable to effective heat preservation when the surface of the thermal device or the surface of the pipeline is in the ultra-temperature state with the temperature of more than 650DEG C, and the like.

The invention discloses a multifunctional feeding device for a vertical screen vibrating sand making machine, which comprises a feeding box body, a material distribution plate and elastic parts; the upper end of the feeding box body is an incompletely closed feeding The lower end surface is a fully-opened discharge port; in the feed box, a distribution plate is arranged transversely relative to its axis; an elastic member is axially arranged between the distribution plate and the feed box; The feed box is located on the square of the impeller of the sand making machine, and the material distribution plate, the impeller, the feed pipe of the sand making machine, and the vibrating mechanism of the sand making machine are arranged correspondingly on the same axis from top to bottom; The material distributing mechanism and the vibrating mechanism on the vertical vibrating vibrating machine work together to make the material make full use of the collision force, and the crushing strength is greater. The above structure can effectively solve the problem of unsmooth discharge of materials in the vibrating vibrating vertical vibrating mechanism and sand making. The problem of low crushing efficiency and insufficient crushing of materials has greatly improved the crushing efficiency and quality of materials, and reduced the energy consumption of crushing.

The invention relates to a sealing installation structure of strip-shaped buckle plates of a suspended ceiling, and the suspended ceiling mainly comprises a keel and the strip-shaped buckle plates, wherein each strip-shaped buckle plate is at least buckled and connected on the triangular keel through buckling and connecting edges which are connected on two side edges, a concave gap is inwards arranged on the buckling and connecting edge on one side of each strip-shaped buckle plate along the edge of the buckle plate, and a convex connecting block which is matched with the concave gap is outwards arranged on the buckling and connecting edge on the other side of each strip-shaped buckle plate along the edge of the buckle plate; every two strip-shaped buckle plates are adjacently buckled and connected on the triangular keel through the respective buckling and connecting edges on the two sides, the adjacent convex connecting blocks are embedded and connected on the adjacent concave gaps and staggered connection of the two adjacent strip-shaped buckle plates is further formed; and depressed grooves are arranged on the inner edges of the concave gaps on the strip-shaped buckle plates, and embedding and connecting edges which can be embedded and connected in the depressed grooves are correspondingly arranged on the outer sides of the convex connecting blocks. The sealing installation structure has the characteristics of simple structure, convenience in use and installation and strong practicability, and can basically realize seamless splicing, reduce the impacts of dirty, messy and poor space at the upper part of the indoor ceiling on living space of people at the lower part, improve indoor environmental sanitation and the like.

The invention discloses a control valve, a variable-amplitude oil cylinder, a working method of the variable-amplitude oil cylinder and an aerial work platform, and relates to the field of aerial work. The control valve of the variable-amplitude oil cylinder comprises a first balance valve arranged on a flow path between a first oil port G and a second oil port F, and a second balance valve arranged on a flow path between a third oil port H and a fourth oil port E; and the flow path between the first oil port G and the second oil port F is also provided with a switching valve which is connected with the first balance valve in series. According to the control valve, when the first balance valve fails, oil can still be prevented from returning from the flow path between the first oil port Gand the second oil port F by shutting off the switching valve, and the working reliability of the control valve is high; and meanwhile, high-pressure oil in a rodless cavity of the variable-amplitudeoil cylinder is sealed by the control valve through the double insurance of the first balance valve and the second balance valve during the aerial operation, and a lifting arm is kept static and prevented from moving downwards to cause the inclining of a working bucket or the overall tipping of the aerial work platform, so that the safety of the high-altitude operation platform is high.

The invention relates to an internal circulation bathroom heating air interchanger which comprises a host machine internally provided with a PTC (positive temperature coefficient) heating module and air absorbing and blowing wheel, and a panel which can be fastened on a ceiling joist and provided with an air intake and a blowing port, wherein the strip-shaped blowing port is arranged on the panel; the other side, opposite to the blowing point, of the panel is provided with the strip-shaped air intake; and an internal circulation passage is formed between the blowing port and the air intake in the host machine, an air change wind wheel is arranged in the internal circulation passage, an adjustable air outlet grid is arranged on the blowing port and is driven through a tilting mechanism arranged in the adjustable air outlet grid, the strip-shaped PTC heating module which is matched with the strip-shaped blowing port is installed in the host machine above the blowing port, the air absorbing and blowing wheel is arranged above the PTC heating module, and air absorbing and blowing wheel and the PTC heating module are configured as wind wheel bodies of same length. The internal circulation bathroom heating air interchanger has the characteristics of simple structure, easiness in installation and use, energy conservation, environmental friendliness and the like.

The invention discloses an automatic tractor height adjusting device which comprises an air storage tank, height valves, change-over valves, electromagnetic height control valves and air springs. The air storage tank and the height valves are connected with the electromagnetic height control valves, and the height valves are connected with the change-over valves which are connected with the air springs. The automatic tractor height adjusting device has the advantages of simple structure, capability of automatically adjusting height of a tractor and convenience and quickness in using and mounting.

A transmission line sag monitoring device, which includes a transmission line fixedly installed between A transmission tower and B transmission tower, a sag height rangefinder is installed on the transmission line, and the sag height rangefinder is configured And be connected with a wireless signal transmitting device that receives transmission line sag height signal, and by this wireless signal transmitting device, contact with host computer or mobile terminal with short message mode by the SIM card of setting; Described sag height range finder comprises An infrared emitting module that can regularly emit infrared rays to the ground and an infrared receiving module that receives and reflects back and is received. The infrared receiving module is connected to a microprocessor with a memory, and the microprocessor is connected to the wireless signal Launching device; it has the characteristics of simple and reasonable structure, convenient installation, timely monitoring, safety and reliability, can improve the safe operation of transmission lines, and can reduce the impact on the overall operation of the power grid.

The invention discloses an ultra-high temperature resistant low-noise cable, comprising a plurality of strands of pure nickel stranded conductors which are wrapped in the same pure nickel wire woven main shielding layer, wherein a composite outer protecting layer is wrapped outside the pure nickel wire woven main shielding layer; a semiconducting composite inner shielding layer, a composite insulating layer, a semiconducting composite outer shielding layer and a pure nickel wire woven sub-shielding layer are sequentially wrapped outside each strand of pure nickel stranded conductor. The ultra-high temperature resistant low-noise cable solves the problem that the low-noise cable has no ultra-high temperature resistance property in the prior art, solves the contradiction between low noise and high-temperature resistance requirement of the cable by the material selection, cable structure and proper process design, and provides a low-noise cable which can be used at 1000 DEG C for a long term.

The invention discloses a ceiling board combination structure. The ceiling board combination structure comprises a keel frame, an adjusting assembly connected with the keel frame, a connector structure installed on the keel frame and ceiling boards installed on the connector structure; the connector structure is provided with installation grooves, the ceiling boards are installed in the installation grooves, sealing strips are installed in the installation grooves, installation holes are formed in the upper ends of the installation grooves, and the installation holes are connected with the adjusting assembly; and the adjusting assembly comprises a belt transmission mechanism, a lifting rod connected with a transmission belt of the belt transmission mechanism and pressing pieces installed at the lower end of the lifting rod. The ceiling boards are connected with the installation grooves in a sealed mode to achieve a good sealing effect, the ceiling boards can be prevented from being pressed to deform through the extrusion mode of the pressing pieces, the ceiling boards are connected through the assembly positions of the ceiling boards, stability is improved, instability of cleanliness of a dust-free room is effectively avoided, the structure is simple, light and convenient, strength is high, the cost is low, and maintenance is simple and effective.

The invention relates to a post inching mechanism in a mobile non-rotating manipulator which belongs to the technical field of a welding auxiliary device. The mechanism is characterized in that a base plate of the post is provided with a group of U-shaped slots which are evenly distributed; adjusting blocks are arranged on the base plate of the post by a bolt. The adopted blocks are three adjusting blocks. The mechanism has simple, compact and reasonable structure and convenient use and installation, can lead the post of the mobile non-rotating manipulator to be adjusted according to the field installation situation of the track of a moving turning roll when installed on site, and cause the track of a cross arm of the mobile non-rotating manipulator to keep in line with the longitudinal seam of a workpiece arranged on the turning roll so as to ensure the precision of welding; and moreover, the mechanism can greatly lower the installation requirements of the ground track.

The invention discloses a branch crusher tooth. The branch crusher tooth comprises a square block-shaped machine tool body; the middle of the lower end surface of the machine tooth body is connected with a downward vertical connecting column; the upper end surface of the machine tooth body is a working surface; integrally molded triangular block tooth head ends are respectively arranged at four corner parts of the working surface; respective outer corner parts of all the tooth head ends are upwards projected to form sharp corners; the sharp corners at the outer ends are downwards transited to the working surface by inner inclined surfaces or arc surfaces to form four side surfaces; V-shaped groove gaps are formed in the upper surfaces of the four side surfaces; the cylindrical surface of the connecting column is an assembly surface; and a middle axial thread hole is formed in the lower end surface of the connecting column. The branch crusher tooth has such characteristics as reasonable structure, convenience for use and installation, good firmness of the whole tooth head structure, wear resistance, reduction of the use cost and improvement of the working efficiency.

The invention relates to a sensing optical cable for an optical fiber current transformer, which comprises an outer sheath and an optical fiber, and is characterized in that the optical fiber is a round-keeping optical fiber, a quartz sleeve is sleeved outside the round-keeping optical fiber, the outer sheath is coated outside the quartz sleeve, a reflecting mirror is arranged at the end of the round-keeping optical fiber at one end of the optical cable, and an end socket is arranged. When the sensing optical cable is used, the optical cable and the end socket end are wound on the conductor to serve as a detection sensing end, the other end of the optical cable is connected with the modulation detection device, compared with a fixed sensing ring structure, the sensing optical cable can be wound on the conductor on site, and the sensing optical cable has the advantages of being convenient and flexible to use and install and high in environmental adaptability. The device is simple in structure and reasonable in arrangement, the arrangement of the quartz sleeve can avoid the influence of the stress and temperature of the round-keeping optical fiber, and the measurement accuracy of the device is ensured.

The invention relates to the technical field of accessories of automobiles, in particular to a bicycle fixing device used on the top of an automobile. The bicycle fixing device used on the top of the automobile comprises a vacuum sucker, a first wheel fixing seat, a second wheel fixing seat, a bicycle fixing rod, a rotating shaft, a first clamping piece and a second clamping piece. U-shaped grooves and buckles are arranged on the tops of the first wheel fixing seat and the second wheel fixing seat of the bicycle fixing device used on the top of the automobile, wheels of a bicycle can be fixed conveniently and quickly, a bicycle fixing slot of the bicycle fixing rod can be fixed in the middle of the bicycle, and fixing stability of the bicycle is improved; and a magnet ring is arranged in the vacuum sucker, so that the suction force of the vacuum sucker is increased. In a word, the bicycle fixing device used on the top of the automobile is reasonable in structural design, convenient and speedy to use and mount and suitable for being popularized and used.

Disclosed is a clay crucible forming machine. The clay crucible forming machine comprises a rack provided with a work platform. Four perpendicularly arranged uprights or two plate frames are fixed to the parts, on the two sides of the work platform, of the rack correspondingly and symmetrically. A horizontal support plate is connected to the upper ends of the uprights or the plate frames, and an N-shaped support body is formed. The clay crucible forming machine is characterized in that an oil cylinder is installed on the horizontal support plate; an oil cylinder piston is perpendicularly downward and is connected with an upper mold moving up and down through a pressing rod; the pressing rod is sleeved with a guide sleeve transversely fixed to the N-shaped support body; a lower mold matched with the upper mold is arranged on the part, below the upper mold, of the work platform, and the periphery of the lower mold is fixedly connected with four uprights of the N-shaped support body or the two plate frames. The lower mold comprises a double-layer shell and a round or square open mold cavity which is formed by the middle of the double-layer shell. The double-layer shell is formed by combining a lower mold outer shell body and a lower mold inner cavity wall. The clay crucible forming machine has the characteristics of being simple in structure, convenient to use and install, capable of reducing manufacturing cost and the like.

The invention discloses an anti-roll bar structure of a double-wishbone suspension of an FSAE racing car, which comprises an anti-roll bar, and further comprises joints sleeved at two end parts of the anti-roll bar, and connecting rods connected with the joints, wherein the anti-roll rod is perpendicular to the joints at the two ends, and limiting mechanisms are arranged between the anti-roll rod and the joints; the connecting rod is perpendicular to the joint, and the position of the connecting rod can be adjusted in the vertical direction of the joint. According to the anti-roll bar, the mechanical performance and the durability of an existing structure are improved, the stress concentration phenomenon in the working process is improved, multiple relative positions are adjustable, and the use, installation and positioning of the anti-roll bar are facilitated. Through the arrangement of joint sleeves, the joint is limited, the transverse position of the anti-roll bar is determined through the joint sleeves between frame connecting lifting lugs and the joints, and the transverse position of the anti-roll bar can be changed by changing the thickness of the left joint sleeve and the thickness of the right joint sleeve.

The infusion alarm includes a tablet-type buzzer equipped with a drive circuit board, characterized in that: the tablet-type buzzer and the drive circuit board are installed in a groove at the front end of an elastic body, and the elastic body It is a case; the end of the case is provided with a film, the film is concave, and the outside of the film is provided with a glue layer; the bottom of the groove is located on the inner side of the case, and a guide point communicating with the drive circuit board is provided, corresponding to the guide point. The film is located on the inner side of the cover body and has a contact point communicating with the drive circuit board; on the side of the cover body, there is a metal edge, and an independent metal sheet corresponding to the metal edge can be fixed on the infusion bag. The invention has the advantages of low cost, convenient use and installation, stable use effect and no restriction on use conditions.

The invention discloses an altitude lifting adjuster for a tractor. The altitude lifting adjuster comprises an air storage tank, altitude valves, conversion valves, electromagnetic altitude control valves and air springs. The air storage tank is connected with the altitude valves and the electromagnetic altitude control valves, the altitude valves are connected with the conversion valves, and the conversion valves are connected with the air springs. The altitude lifting adjuster for the tractor has the advantages that the altitude lifting adjuster is simple in structure and can be used and installed conveniently and quickly, and the altitude of the tractor can be automatically adjusted.

The invention provides a multi-curved-surface modeling lining mold for a concrete structure and a manufacturing method thereof. The multi-curved-surface modeling lining mold comprises a glass fiber reinforced plastic outer mold housing and a supporting mold core, wherein a filling cavity is formed in the glass fiber reinforced plastic outer mold housing; the side wall of the glass fiber reinforcedplastic outer mold housing comprises an outer surface layer; an inner base layer and a middle core layer arranged between the outer surface layer and the inner base layer; a framework is embedded inthe middle core layer; the filling cavity is filled with the supporting mold core; and the supporting mold core is connected to the inner wall of the filling cavity. According to the multi-curved-surface modeling lining mold for the concrete structure and the manufacturing method of the multi-curved-surface modeling lining mold, the problems that a traditional lining mold is prone to deformation,heavy, not easy to transport and low in field mounting efficiency are solved.

The invention relates to an iron core insulation component used for a dry-type transformer, which comprises two insulated long web plates and three insulated short web plates, wherein a plurality of longitudinally-arranged insulated long cushion blocks are uniformly spaced in the transverse direction on the long web plates; the first short web plate is fixedly connected on the two long cushion blocks that are positioned at the adjacent ends of the two long web plates; the long cushion block at the other end of the first long web plate is connected with one end of the second short web plate, and correspondingly a long cushion block is arranged at the other end of the second short web plate; the long cushion block that is arranged at the other end of the second long web plate is connected with one end of the third short web plate, and correspondingly a long cushion block is arranged at the other end of the third short web plate; a pull plate insertion slot is arranged between the two long cushion blocks at two ends of each short web plate respectively; and two through-holes are arranged on the two long web plates in the position corresponding to fixation holes on clamping pieces respectively. The iron core insulation component has a simple structure, is convenient to install, can ensure stable insulation property of the iron core for a long time, and meets the requirements for long-term safe operation of the dry-type transformer.

The invention discloses a novel surface-mounted lamp bead structure and a packaging technology thereof. The novel surface-mounted lamp bead structure comprises a surface-mounted support, a first LED chip, a second LED chip and a bowl cup. The packaging technology comprises the steps of S1 die bonding, S2 baking, S3 wire welding, S4 first color temperature fluorescent glue precise dispensing to make the first color temperature fluorescent glue only cover the first LED chip and do not affect the second LED chip, S5 baking, S6 second color temperature fluorescent glue filling to make the second LED chip and the first color temperature fluorescent glue filled and covered with a layer of second color temperature fluorescent glue, S7 baking, S8 long baking, S9 stripping, S10 light splitting, S11 braiding, and S12 packaging. When the lamp bead is used for single-color and double-color mixed light illumination, uniform and symmetrical light is uniformly and symmetrically emitted from the center of the patch bracket, and light spots are regularly formed in cooperation with secondary light emission after refraction of a condensing lens of a lamp and reflection of a reflection cup, so the double-color-temperature mixed light gradual change is more uniform and the boundary is soft during light and color modulation, and the application range of the small-size lamp bead is expanded.

A mechanical tooth matched to a pulverizer and waste treatment, which includes a block-shaped tooth head body, and the upper surface of the tooth head body is a working surface, which is composed of a square concave plane in the middle and four corners It consists of a four-corner bevel formed from the outside to the inside and obliquely downward to the sides of the square concave plane. A hard alloy layer is welded firmly on the four corners of the plane; the middle of the square concave plane is vertically The bottom is provided with a positioning threaded through hole; the four side walls of the tooth head body are respectively tapered surfaces expanding obliquely from bottom to top, forming a tapered square block body with a large upper part and a smaller lower part; the four An embedded cylindrical cemented carbide block is arranged on the middle upper part of the side wall and below the junction of two adjacent sloped cemented carbide layers; the bottom surface of the tooth head body is a plane and forms an assembly surface with the four side walls; It has the characteristics of reasonable structure, convenient use and installation, good overall structure firmness, wear resistance, good fastness to the tooth seat, and reasonable structure combined with each other, thereby improving work efficiency and so on.

The invention discloses a cargo carrying rack. The cargo carrying rack comprises a rack body, a carrying seat and a push rod, wherein the rack body comprises a cross rod and vertical rods; the vertical rods are fixed at two ends of the cross rod; a carrying seat is arranged between the two vertical rods; the push rod is mounted on the cross rod; a chute is formed in the inner side of each verticalrod; a sliding track is mounted in each chute; a positioning device is arranged on the top of each sliding track; and rollers are mounted at the bottom end of the cross rod. The cargo carrying rack has the beneficial effects that the cargo carrying rack is simple in structure and speedy to use and mount, by the carrying seat, articles can be pushed and transformed on the carrying seat, the laborintensity is greatly reduced, carrying of the articles is facilitated, the safety is improved, by a limiting device, the effect of limiting the articles is achieved, and the stability of the articlesin a carrying process is improved.

The invention discloses a detachable air purification device. The air purification device includes a cubic shell and a purification mechanism and an air outlet chamber arranged in the shell. An air inlet and an air outlet are arranged in two opposite sides of the shell. A clamp connection groove used for clamping the purification device is arranged in the shell. The purification mechanism includesa U-shaped clamping groove and a dedusting filter screen, a photocatalytic module and a HEPA filter screen arranged side by side on the U-shaped clamping groove. The photocatalytic module is clampedbetween two vertical walls of the U-shaped clamping groove, and includes a concave module shell, a plurality of ultraviolet lamp tubes and a plurality of photocatalyst plates. The upper and lower surfaces of each photocatalyst plate are coated in titanium dioxide coatings, and each photocatalyst plate has an angle of 30-60 degrees with the bottom of the concave module shell. The air outlet chamberis defined by a fan and the air outlet. An electronic ballast and a negative ion generator connected in series with the fan and the ultraviolet lamp tubes are arranged in the air outlet chamber. Thedetachable air purification device has the advantages of good purification effect, convenient dismounting and mounting and easy cleaning and replacement.

A gold-ingot-shaped tooth for waste treatment comprises a gold-ingot-shaped pressing block. Hard crushed alloy welding layers are respectively arranged on the upper and lower oblique faces and two lateral sides of the upward pointed ends at two ends of the pressing block through build up welding to allow the pointed ends to form shapes wrapped with the hard crushed alloy welding layers. An upwardly-convex end plane is formed on the upper surface of the pressing block. The two sides of the end plane are connected with the upper oblique faces of the pointed ends at two ends through downward transition arcs. A vertically-upward threaded positioning hole is formed in the middle of the lower surface of the pressing block. A cross positioning groove using the central line of the threaded positioning hole as the center is formed in the lower surface of the pressing block. The bottom and lateral sides of the cross positioning groove are used as assembling faces. The gold-ingot-shaped tooth is reasonable in structure, convenient to use and mount, good in overall tooth head structural firmness, resistant to wear, capable of lowering use cost and increasing work efficiency, and the like.