99results about How to "Disassembly and assembly stability" patented technology

An air filtering net convenient to assemble and disassemble and used for a workshop is arranged in a groove formed in the inner wall of a plant workshop, or is arranged in a groove protruded out of the inner wall of the plant workshop; one or more than one filtering net frame mounting base, filtering net frame and inner frame with a filtering net are arranged in the groove of the wall sequentially from outside to inside in the longitudinal and transverse directions; the filtering net frame mounting base is embedded on the inner wall of the groove of the wall; the filtering net frame tightly clings to the inner wall of the filtering net frame mounting base; the inner frame with the filtering net is movably arranged in the filtering net frame; two pairs of fixed shafts are arranged at four corners of the filtering frame mounting base; the two pairs of fixed shafts are connected with blocking strips capable of rotating by 90 degrees; magnetic bodies enabling the tail ends of the blocking strips to adsorb are embedded at the tail ends of the two blocking strips which are horizontally arranged; and the filtering net frame is arranged on the inner side faces of the rotating blocking strips. A strip-shaped groove enabling the inner frame to come in and go out movably is formed in one side of the longitudinal direction of the groove protruded out of the inner wall of the plant workshop; and the filtering net can be assembled and disassembled from the front side and the lateral side, so the mounting stability of the filtering net is improved, and cleaning, maintenance or change of the filtering net is facilitated.

The invention relates to a simple and convenient installation method of an infrared detector. The infrared detector comprises a detector main body and an installation bracket, wherein the detector main body comprises a lower shell and an upper shell fixed on the lower shell. The simple and convenient installation method comprises the following steps of: a, installing the installation bracket on a proper installation position; and b, detachably connecting the lower shell on the installation bracket. Preferably, in the step a, the installation bracket is bonded on the installation position through at least one special non-marking adhesive tape, or the installation bracket is provided with at least one screw hole, and the installation bracket is installed on the installation position in such a way that a screw penetrates through the screw hole. In the step b, the lower shell is blocked on the installation bracket. The detector main body also comprises a spherical surface infrared lens which is installed on the upper shell. The simple and convenient installation method of the infrared detector has the advantages of skillful design, simple and convenient installation, no damage of decoration and repeated disassembly and assembly, and is suitable for large-scale generalization and application.

The invention discloses an optical module testing device which comprises a PCB (printed circuit board), a to-be-tested optical module and an optical fiber patch cord. A flexible circuit board is disposed on the to-be-tested optical module. In a testing state, the optical fiber patch cord is connected with the to-be-tested optical module, the flexible circuit board of the to-be-tested optical module is electrically connected with the PCB which is disposed on a bottom plate, a patch cord inserting seat is disposed on the bottom plate, a module mounting hole is formed between the patch cord inserting seat and the bottom plate, a patch cord inserting hole is formed above the module mounting hole, and when the optical fiber patch core is inserted into the patch core inserting hole, the optical fiber patch core is electrically connected with the to-be-tested optical module disposed in the module mounting hole. The optical module testing device has the advantages that a pressure head is connected through a rotary shaft and a pressing plate, the testing device is simple in structure and good in structural stability during testing, mounting and demounting of each part are convenient, and repeated testing by using different PCBs, different to-be-tested modules, and the like is facilitated.

The invention relates to a combination packing box used for motorcycles, comprising a box cover, a box body and a chassis. Wherein, the box body is composed of a front end plate, a back end plate, a left side plate and a right side plate. The upper end of the box body is connected with the box cover while the lower end is connected with the chassis. The box cover, box body and chassis all appears beehive paper board formed by two pieces of cardboard between which the beehive paper is clamped. Outer paper corner beads and inner paper corner beads are adhered on the vertical edges at the ends of the end plates of the box body to form the paper corner-protecting body of right-angle slot style, and one end of the right-angle slot style paper corner-protecting body which links the side plates appears as the slot structure and the corresponding side plates are inserted into the slot. Then the front end plate, back end plate, right side plate and left side plate are connected mutually to form the box body. The combination packing box adopts the block combination style on structure and the box body is formed by inserting and connecting beehive paper boards with compact structure and proper intensity so as to reduce cost and prolong the service life while guaranteeing the intensity; and the processing is easy and both assembling and disassembling are convenient; not only the integrity appearance of the packing box is elegant but the environment protection requirement can be realized; and the application prospect of the combination packing box is prosperous.

The invention discloses a vacuum furnace thermocouple installation leakage-prevention device. The device comprises an installation seat (2), a sealing gasket (3) and an outer sleeve nut (6). The device is characterized in that the front part of the installation seat (2) is fixedly connected with a pipe body (1); the sealing gasket (3) and the pressing sleeve (4) are sequentially mounted in the inner cavity of the installation seat (2); the sealing gasket (3) and the pressing sleeve (4) are positioned through end surfaces; a locking pin (5) is installed between the pressing sleeve (4) and the installation seat (2); the outer sleeve nut (6) is detachably installed on the exterior of the installation seat (2); the outer sleeve nut (6) is pressed on the outer end surface of the pressing sleeve (4) in a matched manner; and the locking pin (5) is installed in a pin hole (7) formed in the installation seat (2). The device of the invention has the advantages of simple structure, convenient assembly and disassembly, reliable sealing and low cost, and is suitable for being popularized in vacuum furnace thermocouple leakage-prevention installation.

The invention discloses an air-conditioning air deflector and an air conditioner with the same. The air-conditioning air deflector comprises an air deflector body and two flexible supporting lugs; the air deflector body is a long strip-shaped bulk molding compound plate, insertion grooves are formed in the two ends of the air deflector body, and avoiding gaps communicating with the insertion grooves are formed in the rear surface of the air deflector body; and the two flexible supporting lugs correspond to the two insertion grooves in a one-to-one mode and respectively comprise a base plate and a flexible arm connected to the base plate, the base plates are inserted into the corresponding insertion grooves, the flexible arms extend out from the avoiding gaps, and drive holes used for being matched with drive columns on the air conditioner are formed in extension ends of the flexible arms. The air-conditioning air deflector can form a structure combining rigidity and flexibility, the rigid air deflector body can resist deformation caused by long-term use and air blowing, has good shape maintenance property and has a good appearance, installation of the air-conditioning air deflector is easier through the flexible supporting lugs, and therefore both the installation convenience and the use deformation resistance can be realized.

The invention discloses a suspension-type mechanism for disassembly, assembly and locking, wherein hanging pieces with upward openings are symmetrically arranged at the both ends of the upper part of a hanging hook; two groups of the hanging hooks are fixed on a cross beam in pairs via the hanging pieces; the lower edges facing to a suspension surface, of the lower parts of the hanging hooks are provided with inwards-sunken inclined planes; the suspension surface is inserted and installed in a suspension groove of a movable slide block; the movable slide block is assembled in a box frame; dowels with inclined planes are assembled in the movable slide block and coupled with the inwards-sunken inclined planes on the lower edges of the hanging hooks; a deformed screw is installed at a transversal position of the other end of the movable slide block; a hexagonal screw head on the deformed screw is clamped in a U-shaped groove of a clamping plate; and the other end of the box frame is assembled with another hanging hook via a fixed slide block, and fixed by a dowel assembled in the fixed slide block via a fine-thread screw. The suspension-type mechanism for disassembly, assembly and locking disclosed by the invention has the function of rapidly suspending, disassembling, assembling and locking a heavy box-type object. The mechanism is ingenious in design and simple in structure; and the box is firm in fixation and convenient in disassembly and assembly.

The invention discloses a tire changer which is simple in structure, small in size and high in automation degree. A body is composed of an operating platform and a mounting and dismounting mechanism. A square tube slide is arranged on a square tube slide foot stand fixing groove. The square tube slide is externally sleeved with a square tube slide bushing. A tire pressing boosting arm is arranged on the left side of a fixing rack, and a mounting and dismounting mechanism lifting cylinder is arranged on the fixing rack at the bottom of the square tube slide bushing. In operation, the square tube slide bushing moves up and down under the action of driving of the mounting and dismounting mechanism lifting cylinder, a tire thread opening is pressed away or pressed into a hub through a tire pressing wheel and a hook head, and then a hub fixing disc is rotated to dismount or mount the tire. In case of special tires or steel wire tires, the boosting arm is needed for collaborative operation. The tire changer is compact in body, low in center of gravity, stable in installation, and high in automation degree as the mounting and dismounting mechanism and a boosting mechanism are integrated. A crowbar is not required to cooperate in mounting and dismounting, and the body can be directly loaded in a tool car and carried to sites of accidents for operation. Practical problems of existing equipment are solved.

The invention discloses a double-end drilling and milling fixture for machining an end surface of a disk hub. The double-end drilling and milling fixture for machining the end surface of the disk hubcomprises a base; a lifting mechanism is fixedly arranged at the upper end of the base; the lifting mechanism comprises a first hand wheel, first gears, rack plates, fixing frames and lifting platforms; the plurality of fixing frames are arranged at the upper end of the base; a plurality of first gears are movably mounted at the middle parts of the plurality of fixing frames through bearings; theplurality of first gears are connected with each other through rotating shafts; the first hand wheel is fixedly mounted on one side, close to the rotating shaft, outside the fixing frame; the plurality of rack plates are movably mounted on one sides, close to the first gears, in the plurality of fixing frames; the plurality of rack plates are engaged with the first gears; lifting platforms are fixedly arranged at the upper ends of the plurality of rack plates; and clamping mechanisms are fixedly arranged at the upper end of the lifting platforms. According to the double-end drilling and milling fixture for machining the end surface of the disk hub, the accurate positioning of the end surface of the disk hub can be limited, and double-end rapid machining can be realized.

The invention relates to the field of transportation equipment, discloses a hand fork lifter capable of being conveniently steered, and aims to solve the problem of inconvenience for steering of a conventional fork lifter in a goods transportation process. The hand fork lifter comprises a fork lifter main body and a steering device, wherein the fork lifter main body is provided with a fork plate which extends along the horizontal direction and can be lifted along the vertical direction; the steering device comprises a bracket which is arranged on the fork plate, and a steering disk which is arranged on the bracket; the bracket is connected with the steering disk through a rotary pair; and the steering disk is higher than the fork plate in the vertical direction. The hand fork lifter has the advantage that by arranging the steering device on the fork plate, the weight of transported goods can be born by the steering disk, so the goods can easily rotate relative to the fork lifter main body through the steering disk.

The invention discloses a precise regulating and aligning device of a shaft coupler. The precise regulating and aligning device comprises at least three regulating units which are separately distributed on at least three corner positions of a base plate of a prime motor, wherein each regulating unit comprises a horizontal regulating assembly, a perpendicular regulating assembly, a locking part and a foundation bolt; a first assembly hole with aperture greater than the diameter of each foundation bolt, is formed in the position, at the mounting position of each regulating unit, of the base plate of the prime motor separately; and one end of each foundation bolt is locked to the ground, and the other end of each foundation bolt sequentially passes through each perpendicular regulating assembly, each horizontal regulating assembly and each first assembly hole, and then is connected to each locking part. The precise regulating and aligning device of the shaft coupler is simple in structure and is high in practicability and takes each foundation bolt as reference datum; each horizontal regulating assembly and each perpendicular regulating assembly precisely regulate a position in the X-axis direction, a position in the Y axis direction and a position in the Z-axis direction of the base plate separately, so that operation is simple and effective, and labor intensity and difficulty of aligning work are reduced, and therefore, mounting quality and mounting efficiency of machine equipment are guaranteed.

The invention discloses a foucault pendulum demonstration device. The foucault pendulum demonstration device comprises a simple pendulum, a permanent magnet, an optoelectronic switch, a PLC, a relay and an electromagnetic coil, wherein the simple pendulum is provided with a pendulum line and a pendulum ball, one end of the pendulum line is fixed, the other end of the pendulum line is connected with the pendulum ball, and the period of the simple pendulum is T; the permanent magnet is mounted on the pendulum ball; the optoelectronic switch is used for detecting that whether the pendulum ball passes by above, and when the pendulum ball passes by, the intensity change of light between a transmitting end and a receiving end of the optoelectronic switch is converted into the change of current; the PLC is used for receiving electrical signals of the optoelectronic switch and generating a corresponding control instruction; the relay is used for receiving the control instruction for switching on or off the PLC, and making corresponding movement; the switching on or off of a power supply of the electromagnetic coil is controlled by the relay, and the electromagnetic coil is used for attracting the permanent magnet on the pendulum ball, and providing compensation force for the pendulum ball. The foucault pendulum demonstration device realizes the long-time swing and can be observed for a long time, the experimental phenomenon is continuous and repeated so as to be easily captured, the whole structure is high in stability, the long-time circular demonstration is satisfied, and the display effect is good.

A quick assembly and disassembly structure of a furniture hinge comprises a movable cup holder, a connecting arm and a fixed base. One end of the connecting arm is hinged with the movable cup holder mutually, and the other end of the connecting arm is fit and connected to the fixed base of which the front end is provided with a positioning part; the connecting arm corresponding to the positioning part is provided with a location fit part, and an elastic clamping assembly is arranged between the rear end of the fixed base and the connecting arm; the front end of the fixed base is clamped on the location fit part of the connecting arm through the positioning part; and the rear end of the fixed base is fit to the connecting arm through the elastic clamping assembly mutually, so that quick assembly and disassembly and firm connection of the fixed base and the connecting arm are achieved. Through improvement of the above structure, the quick assembly and disassembly structure provided by the invention has the characteristics of simple and rational structure, excellent performance, quick assembly and disassembly, compact connection between the components, low manufacturing cost, easy production and implementation, high safety and reliability, wide application scope and high practicability.

The invention discloses an integrated optimization structure for a drawer front panel. The integrated optimization structure comprises a sliding rail component, a side plate, a base plate, a rear back plate and a front panel component, wherein a locking and releasing device connected with the front panel component is arranged on the side plate; the front panel component comprises a metal section bar and plastic connection pieces which are arranged on the left and the right of the metal section bar in a correspondence manner; the metal section bar and the left plastic connection piece as well as the metal section bar and the right plastic connection piece are fixed through fastening units; during mounting of the front panel component, the left plastic connection piece and the right plastic connection piece are connected with the locking and releasing device in a matched manner; metal shells are also arranged on the outer surfaces of the plastic connection pieces. According to the integrated optimization structure for the drawer front panel, the locking and releasing device connected with the front panel component is arranged on the side plate, and the front panel component comprises the metal section bar and the plastic connection pieces which are arranged on the left and the right of the metal section bar in the correspondence manner; during mounting of the front panel component, the left plastic connection piece and the right plastic connection piece are connected with the locking and releasing device in the matched manner, so that the front panel component and the side plate are more quickly and conveniently assembled; furthermore, an assembled drawer is stable and firm and has an attractive appearance.

The invention discloses a multifunctional temporary suspension device of a distribution network for uninterruptible operation. The multifunctional temporary suspension device comprises an insulating rod, wherein a wire hook is arranged at the left end of the insulating rod; a temporary suspension point member is arranged at the right end of the insulating rod and comprises a cylindrical accommodating cavity body, a lug plate arranged at the left side of the accommodating cavity body, a tube body arranged at the right side of the accommodating cavity body and an elastic wire locking member arranged in the tube body; the temporary suspension point member is hinged with the right end of the insulating rod through the plug plate; the elastic wire locking member comprises a wire locking rod, a locking block, an elastic part and an insulated flexible pull body; the locking block is arranged at the left end of the wire locking rod and is provided with a groove; the elastic part is arranged on the right end surface of the locking block and sleeves the wire locking rod; and the insulated flexible pull body is arranged at the right end of the wire locking rod. By the multifunctional temporary suspension device, a wire can be firmly fixed to solve the problems that the wire slips off and is seriously bent; the multifunctional temporary suspension device is simple in structure and easy to take and suspend; meanwhile, the labor intensity of an operator is reduced; and the operation safety is improved.

The invention relates to an electrically-driven axle device and an electrically-driven transport vehicle, wherein the electrically-driven axle device comprises an axle support, driving motors, hub reduction gears and rims; the axle support comprises a connecting main base and connecting flanges symmetrically fixed on the left side and the right side of the connecting main base; motor mounting spaces are defined by the inner side faces of the connecting flanges and the upper end of the connecting main base; mounting bolt holes are formed in the connecting flanges, the driving motors are located in the motor mounting spaces and fixedly connected to the inner side faces of the connecting flanges through bolts, and the hub reduction gears are connected to the outer side faces of the connecting flanges through bolts; an output shaft of each driving motor is connected with the corresponding wheel-side speed reducer, the wheel-side speed reducers are each provided with a rotating output flange, and each rim is connected with the rotating output flange of the corresponding wheel-side speed reducer through a bolt. The electrically-driven axle device is simple in structure and stable in operation, deformation of the output shafts of the driving motors can be effectively prevented, and the driving motors are convenient to install and maintain.

The invention discloses an automobile tire dismantling device which comprises a base, a telescopic device, a major axis, a disk external circle, spokes, a telescopic link, a rotary spanner, a hexagonal axis, a hexagonal tank and a disk inner circle, wherein the central location of the base is connected with one end of the telescopic device; the other end of the telescopic device is connected with the major axis, and the telescopic device is perpendicular to the major axis; the other end of the major axis is connected with the disk inner circle by the same center of circle; the spokes are arranged between the disk inner circle and disk outer circle, and expand divergently along the radial direction of the disk inner circle at equal angle intervals; one end of each spoke is connected with the disk inner circle, and the other end is connected with the disk outer circle; and one side of the disk inner circle adjacent to the major axis is coaxially provided with a circular hole into which the major axis can be matched and inserted. The automobile tire dismantling device is simple in structure; and by adding the disk and base units and adopting the lever principle, the automobile tire dismantling device is convenient and labor-saving for operation in the automobile tire mounting and dismantling process, thereby achieving the effect of stable mounting and dismantling.

The invention discloses a fast mounting and demounting device for an aviation plug. The fast mounting and demounting device comprises a locking block and an inserting block. The locking block and theinserting block are rotationally connected through a torsion spring. An inserting groove is formed in the side wall of the locking block, and an inserting rod is welded to the side wall of the inserting block. The inserting rod abuts against the inner wall of the inserting groove. A locking mechanism used for limiting moving of the inserting rod is arranged in the inserting groove. Clamping grooves are formed in the side walls of the locking block and the inserting block correspondingly in a penetrating manner, and a set of clamping springs are welded on each of the inner walls of the sides, away from each other, of the two clamping grooves. The fast mounting and demounting device has the beneficial effects that the locking block and the inserting block are designed so that a cable connected with the plug can penetrate the locking block and the inserting block in the process that the locking block and the inserting block are combined, blockage and interference cannot be caused in the subsequent plug screwing process, the whole demounting and mounting process is not hindered, convenience and rapidness are achieved, and the whole demounting and mounting efficiency is greatly improved.

The invention discloses an explosion-proof tuning fork liquid level detection device which comprises an outer shell, an anti-explosion armored cable sealing joint, a sensor element, a connecting piece and a top cover, a material level controller is arranged in the outer shell, the anti-explosion armored cable sealing joint is arranged on the outer side of the outer shell, the bottom end of the outer shell is connected with the connecting piece, a first sealing ring is installed at the top end of the connecting piece, a fork body is connected to the lower portion of the connecting piece, a connecting flange is arranged on the outer side of the connecting piece, a fixing hole is formed in the edge side of the connecting flange, the top cover is connected to the top end of the outer shell, a sliding block is installed at the bottom of the inner side of the top cover, and an alignment groove is formed in the outer side of the top end of the outer shell. The explosion-proof tuning fork liquid level detection device can be adjusted, installed and used, position alignment can be guaranteed, the stability of long-term work can be guaranteed, and meanwhile stable disassembly and assembly are facilitated.

The invention discloses an advanced treatment device for printing and dyeing wastewater. The advanced treatment device comprises a fiber turntable filter tank, an ozone contact tank, a filter tank, a reaction tank, a sedimentation tank and a waterstorage tank which are connected in sequence, wherein the ozone contact tank is connected with an ozone preparation device; the ozone preparation device is connected with an oxygen preparation device; tail gas breaking devices are arranged on both of the ozone contact tank and the filter tank; 3 extension boards are distributed at intervals in the ozone contact tank; the lower ends of the extension boards are fixedly connected with the lower wall of the ozone contact tank, so as to divide the ozone contact tank into a first tank body, a second tank body and a third tank body; an aeration device is arranged at the bottom of each of the first tank body, the second tank body and the third tank body; the aeration devices are connected with theozone preparation device. The advanced treatment device effectively improves the outlet water quality through the synergistic effect of powdered activated carbon and a flocculant, ensures that wastewater can meet the requirement of primary B drainage after being treated, andis good in water treatment effect, simple in technical operation and low in operation cost.

A side-plate heightening and noise reducing structure of a drawer comprises side plates, a base plate, a front plate, a rear plate and a sliding rail component used for opening and closing the drawer. A locking and separating device connected with the front plate and a rear connecting device connected with the rear plate are arranged on the side plates. At least one connecting element is arranged on the front plate which acts on the locking and separating device through the front connecting element, so that the front plate and the side plates are locked and separated. A stabilizing element is arranged on the upper side of the side plate with one end connected with the front plate and the other end connected with the rear plate and / or the rear connecting device arranged on the rear plate and forms a gap with the side plate, an elastic device is arranged in the gap, a plate element is arranged on the elastic device, the elastic device is elastically loaded on the end of the plate element during mounting of the drawer to remove the gap between the plate element and the elastic device and / or noises generated from longitudinal motion of the drawer. The side-plate heightening and noise reducing structure is high in practicability.

The invention discloses an automatic cleaning machine for a gum film of a modularized integrated circuit chip. A cross beam is arranged the top of a stander, a grinding guide rail is arranged in the middle of the stander; a plurality of grinding mechanisms are mounted on the cross beam on the stander in an equal interval manner and comprise reciprocating driving devices, sliding blocks, pressure sensors and bow-shaped grinding assemblies; the reciprocating driving devices are fixed on the cross beam; the sliding blocks are connected with the grinding guide rail; the reciprocating driving devices drive the sliding blocks to slide in a reciprocating manner on the grinding guide rail; the tops of the pressure sensors are fixedly connected with the sliding blocks, and the bottoms of the pressure sensors are fixedly connected with the bow-shaped grinding assemblies; the bow-shaped grinding assemblies are arranged above the integrated circuit chip; and a chip fixing mechanism is arranged atthe bottom in the stander, and the integrated circuit chip is fixedly placed on the chip fixing mechanism. The grinding mechanisms are modularized and can be mounted on the cross beam of the stander in an equal interval manner, so that the modularized combined mounting is realized, and the formation of a flow production line is facilitated.

The invention discloses an integrated optimization structure for a drawer front panel. The integrated optimization structure comprises a sliding rail component, a side plate, a base plate, a rear back plate and a front panel component, wherein a locking and releasing device connected with the front panel component is arranged on the side plate; the front panel component comprises a metal section bar and plastic connection pieces which are arranged on the left and the right of the metal section bar in a correspondence manner; the metal section bar and the left plastic connection piece as well as the metal section bar and the right plastic connection piece are fixed through fastening units; during mounting of the front panel component, the left plastic connection piece and the right plastic connection piece are connected with the locking and releasing device in a matched manner; metal shells are also arranged on the outer surfaces of the plastic connection pieces. According to the integrated optimization structure for the drawer front panel, the locking and releasing device connected with the front panel component is arranged on the side plate, and the front panel component comprises the metal section bar and the plastic connection pieces which are arranged on the left and the right of the metal section bar in the correspondence manner; during mounting of the front panel component, the left plastic connection piece and the right plastic connection piece are connected with the locking and releasing device in the matched manner, so that the front panel component and the side plate are more quickly and conveniently assembled; furthermore, an assembled drawer is stable and firm and has an attractive appearance.

The invention discloses an intelligent balance heat supply system and relates to the technical field of heat supply regulation. The intelligent balance heat supply system comprises a heat supply system body and is established on the basis that the heat supply system body comprises a heat exchange station, a unit and a household which are correspondingly transformed, an intelligent heat supply management platform is built on the basis of the intelligent balance heat supply system, and a control valve additionally arranged for transforming the heat exchange station in the heat supply system body further comprises a connecting pipe fitting. According to the intelligent balance heat supply system, a remote metering water meter is additionally arranged on the basis of thermal control measuring equipment of an original heat exchange station, in order to more conveniently observe and grasp the real-time dynamic water replenishing change condition of the system, electric unit balance valves are additionally arranged in all unit buildings of a heat supply community, the heat supply requirements of residents with poor heat supply conditions are met by adjusting the flow quantity, other residents also can be made not to be oversupplied, the overall heat supply efficiency is guaranteed, the number and the operation frequency of circulating pumps are dynamically adjusted according to the actual requirements of the community, and the intelligent balance heat supply system is used for improving the service management level and the technical guarantee.

The invention discloses a high-low temperature alternating pure metal two-way sealing ball valve. The high-low temperature alternating pure metal two-way sealing ball valve comprises a valve body provided with a valve cavity, and a ball body located in the valve cavity and in sealing fit with the valve cavity through a valve seat sealing pair, the top of the ball body is connected with a valve rod, and the valve seat sealing pair comprises an annular valve seat; a plurality of shaft shoulders are arranged on the outer circumferential wall of the valve seat, and the side, close to the ball body, on the inner wall of the valve seat is tangent to the ball body; and a flowing channel transits onto the valve cavity through N-stages step holes, the N shaft shoulder is inserted into an Nhole body, a spring compensation type metal sealing ring A is arranged between the N shaft shoulder and the N hole body, and the spring compensation type metal sealing ring A is at least in apressed state in the direction parallel to the axis of the flowing channel. According to the high-low temperature alternating pure metal two-way sealing ball valve, floating sealing is achieved through the sealing ring with an elastic compensation function, size compensation required by temperature change is met, whether the high temperature, the low temperature or high-low temperature alternating, high-temperature expansion deformation and low-temperature shrinkage deformation are overcome, and tight sealing of the ball valve in various changing work conditions can be effectively ensured.

The invention discloses an automobile part positioning and stamping die, and belongs to the technical field of automobile part stamping. The automobile part positioning and stamping die comprises a first combined die, a stamping model, a limiting assembly, a second combined die, a die opening assembly, a model positioning assembly and an outer positioning assembly, and an outer spring and the limiting assembly are fixedly mounted on the top of the second combined die. The die opening assembly is installed outside, the power arms of die opening rods are designed to be greatly longer than resistance arms, the design principle of levers is utilized, and when a stamped automobile part needs to be taken down, the power arms at one ends of the first die opening rod and the second die opening rod are slightly and directly pressed down, at the moment, a bottom connecting spring and a middle connecting spring are extruded, when force is removed, the first die opening rod and the second die opening rod can quickly return, the resistance arm at one end can knock the automobile part heavily, the automobile part can be taken off easily, the design is ingenious, the quick demolding function of the automobile part is achieved, and labor is saved in operation.

The invention discloses a high-precision automatic removing machine for a back adhesive film of an integrated circuit chip. A cross beam is arranged at the top of a rack, and a plurality of grinding guide rails are arranged in the middle of the rack. The grinding mechanisms are mounted on the cross beam of the rack at equal intervals. Each grinding mechanism comprises a reciprocating device, a sliding block, a pressure sensor and an arc-shaped grinding assembly, wherein the reciprocating device is fixed to the cross beam, the sliding block is slidably connected with the corresponding grindingguide rail, and the reciprocating device drives the sliding block to reciprocate on the corresponding grinding guide rail; the top of the pressure sensor is fixedly connected with the sliding block, and the bottom of the pressure sensor is fixedly connected with the arc-shaped grinding assembly; and the arc-shaped grinding assembly is arranged above the integrated circuit chip. A chip fixing mechanism is arranged at the inner bottom of the rack. The integrated circuit chip is fixedly placed on the chip fixing mechanism. According to the high-precision automatic removing machine, the grinding pressure is measured through the pressure sensors, and then the working pressure and reciprocating frequency of the arc-shaped grinding assemblies are accurately controlled, so that the adhesive removal effect is effectively ensured, and the production efficiency is improved.