666results about How to "Achieve fastening" patented technology

The invention belongs to the technical field of panel processing and discloses a full-automatic effective drilling machine for a furniture panel. The full-automatic effective drilling machine for the furniture panel is used for solving the problems that an existing panel drilling device is large in labor intensity and low in production efficiency due to discontinuous production. The full-automatic effective drilling machine for the furniture panel comprises a main stand, the main stand is provided with a feed cabin for holding a workpiece to be processed, the main stand before the feed cabin is provided with a push cylinder for pushing the workpiece to be processed, the main stand behind the feed cabin is provided with a drilling device for drilling the lateral surface of the workpiece to be processed, and the main stand at one side of the feed cabin is provided with a transverse push cylinder for pushing out the processed workpiece; the main stand at the other side of the feed cabin is provided with a storage device for recycling the processed workpiece, and the transverse push cylinder and storage device are respectively located at two sides of the feed cabin.

The invention discloses a resonance bending fatigue test machine for railway sleepers and application of the resonance bending fatigue test machine, and belongs to the technical field of test machines. The resonance bending fatigue test machine for the railway sleepers comprises a base, two side upright columns, a vibration exciter, a constant-force hydraulic loading system and a control system. The two side upright columns are symmetrically arranged on the upper end surface of the base, force measuring sensors, support blocks and small support plates A are sequentially arranged on the upper end surfaces of the two side upright columns, and a railway sleeper can be supported by the two side upright columns; the vibration exciter is arranged between the two side upright columns, the lower end of the vibration exciter is supported on the upper end surface of the base by a constant-force hydraulic loading mechanism, the upper end of the vibration exciter is fastened and connected with the tested railway sleeper by a fastening support mechanism, and load applied by the vibration exciter acts on a loading location for the tested railway sleeper; force can be loaded on the tested railway sleeper by the constant-force hydraulic loading system via the vibration exciter, and the constant-force hydraulic loading system and the vibration exciter can work under the control of the control system. The resonance bending fatigue test machine and the application have the advantages that test frequencies can be increased by the fatigue test machine on the basis of resonance principles, the test cycle can be shortened, and accordingly the test cost can be saved to a great extent.

The invention discloses a thin-walled barrel welding assisting tool. The thin-walled barrel welding assisting tool comprises an inner support assembly and an inner support lifting appliance; the innersupport assembly comprises a bottom platform, a supporting frame I, and a plurality of supporting plates I which are uniformly distributed in the circumferential direction of the supporting frame I;the supporting plates I are connected with drivers I arranged on the supporting frame I, and driven by the drivers I to synchronously move in the radial direction, and one side surfaces of the supporting plates I are closely attached to the inner wall surface of a barrel section; the supporting frame I is arranged on a vertical lifting mechanism; the inner support lifting appliance comprises a supporting frame II and a plurality of supporting plates II which are uniformly distributed in the circumferential direction of the supporting frame II; the supporting plates II are connected with drivers II arranged on the supporting frame II, and driven by the drivers II to synchronously move in the radial direction, and one side surfaces of the supporting plates II are closely attached to the inner wall surface of the barrel section; and the supporting frame II is arranged on a lifting moving mechanism so that the barrel section can be lifted and conveyed to the bottom platform. According to the thin-walled barrel welding assisting tool, the influence of the gravity factor on welding deformation can be eliminated, girth welding station automation is advantageously achieved, and the assembling quality and efficiency are improved.

The invention discloses a yarn conveying and pulling mechanism, and belongs to the field of textile processing mechanical equipment. According to the yarn conveying and pulling mechanism, a yarn feeding mechanism, a pulling mechanism and a yarn guide mechanism are arranged on a fixing support in sequence in the horizontal direction. A lower yarn bearing guide roller is connected with the portion,located on the lower side of an upper yarn press guide roller, of the fixing support in a horizontal rotation mode. A shaping rotating drum is connected to the portion, located between a front yarn guide roller and a rear yarn guide roller, of the fixing support in a horizontal rotation mode, and a heat-conducting oil pipe is arranged at the shaft ends of the two sides of the shaping rotating drumin a communicating mode. Pulling guide plates are arranged in pulling guide grooves in a sliding mode in the circular arc direction, and the pulling guide grooves are formed in the two sides of the shaping rotating drum. One end of one pulling rotating roller and the same end of the other pulling rotating roller are connected to the pulling guide plates on the two sides of the fixing support in arotating mode correspondingly. A yarn discharging guide roller is connected to the portion, located on one side of an adjusting support, of the fixing support in a horizontal rotation mode. The yarnconveying and pulling mechanism is reasonable in structural design, can efficiently and accurately convey yarn, and can conduct stable pulling shaping on the yarn section by section in the conveying process, the degree of automation of yarn processing is improved, and the requirements of production and usage are met.

The invention discloses a spliceable precision building template system which is provided with two panels and reinforced ribs for connecting the two panels, wherein connecting heads (9) are formed on the splicing sides spliced with adjacent templates; seen from the cross section of the template, each connecting head (9) comprises a chuck (1) protruding towards the adjacent template, a clamping groove (2) and a connecting mechanism (4); the clamping groove (2) is inwards concaved relative to the protruding direction of the chuck (1); the connecting heads (9) of the adjacent templates are combined together by using the connecting mechanism (4); and the chuck (1) is suitably embedded into the clamping groove (2); and outer surfaces of the panels at two sides of the adjacent templates are positioned on the same plane at the same side. The building template with the structure can be freely spliced; after splicing, a joint is tight and favorable integrity is achieved; and after grouting, the probability of slurry leakage is low.

The invention discloses an anti-scouring concrete repairing device. The anti-scouring concrete repairing device comprises a mixing and stirring device and a slurry supplement pipe. The mixing and stirring device is used for stirring concrete slurry, and the concrete slurry is injected into concrete cracks through the slurry supplement pipe. The anti-scouring concrete repairing device is characterized in that the mixing and stirring device can cyclically work to prepare materials first and then to discharge the materials, and a plurality of pipelines arranged between the mixing and stirring device and the slurry supplement pipe. The anti-scouring concrete repairing device has the advantages that the cracks are fully filled, the probability of slurry leakage is lowered, the surface flatnessis high after reinforcement, and a grouting pipe can slide in the cracks to achieve slurry supplement; the mounting stability of a support is high, and a wall is not likely to be damaged, or the adhesion strength of a plate body is high; intermittent material supplement and quantitative stirring are conducted, so that raw material waste is reduced, the cracks are fully filled, the probability of slurry leakage is lowered, the surface flatness is high after reinforcement, the grouting pipe can slide in the cracks to achieve slurry supplementation; and the mounting stability of the support is high, and the wall is not likely to be damaged, or the adhesion strength of the plate body is high.

The invention provides a hub clamping device and belongs to the technical field of automobile parts. The hub clamping device comprises support plates, guide rods, pull rods, a guide assembly and clamping jaws. The three guide rods are uniformly arranged. The support plates are arranged on a bearing seat and the guide rods in an up-down sliding manner. The upper end of a compression spring is attached to an upper spring bearing groove. The lower end of the compression spring is attached to a lower spring bearing groove. The three pull rods are arranged and uniformly arranged. The pull rods and the guide rods are arranged in a staggered manner. The lower ends of the pull rods are hinged to the support plates through pull rod pin shafts. Torsional springs and the pull rod pin shafts are concentrically arranged. The lower ends of clamping jaw connecting rods are connected to the upper ends of the pull rods in a threaded manner. The clamping jaws are fixed to the upper ends of the clamping jaw connecting rods. Guide steel balls of the guide assembly are arranged on the right sides of guide bolts in a rolling manner. A hub centering bearing seat is mounted on the upper side of the bearing seat. The upper ends of the support plates are further provided with limiting pins. By the adoption of the hub clamping device, hubs can be centered and clamped quickly, the feeding and discharging space of the hubs is large, and feeding and discharging of the hubs are facilitated.

The invention relates to a new energy vehicle battery pack assembly and a new energy vehicle. The battery pack assembly comprises an upper housing, a lower housing and a battery module; the inner sidefaces of the upper and lower housings are provided with symmetric framework structures; battery modules are fixedly arranged in the framework structures of the inner side faces of the upper and lowerhousings. According to the new energy vehicle battery pack assembly and the new energy vehicle, the battery pack assembly is simple and compact in structure, high in safety performance, strong in loading capacity, convenient to the install and dismantle and high in universality, the fastening of the battery modules can be achieved, the requirements of the installation reliability of the battery modules are met to greatly improve the vibration resistance and anti-impacting performance of the battery modules and the battery pack assembly, the overall structure of the battery pack assembly is simple, the processing and the assembling are convenient and easy, the rigid strength is high, the battery pack assembly is easy to process and produce, the barycenter and stability of a vehicle body are not affected, and a light-weight designing concept is thoroughly presented.

The invention discloses a double-welding-gun automatic heat pipe welder. The welder comprises a machine frame, an automatic double-pipe discharging device, an automatic double-pipe feeding device, a double-argon-arc-welding-gun adjusting device, an automatic double-pipe welding device and an automatic double-pipe falling device and a PLC, wherein an outer branch pipe sliding table and a rubber wheel sliding table of the automatic double-pipe feeding device are installed on two linear guide rails through a pair of sliding blocks arranged in parallel respectively, an auxiliary branch pipe fixing plate is arranged on one side of the outer branch pipe sliding table, and two rubber wheel side plates are arranged on the two sides of the rubber wheel sliding table respectively; multiple parallel V-shaped grooves are formed in two main branch pipe plates and three auxiliary branch pipe plates respectively in pairs, and the distance between two V-shaped grooves in each pair is equal to the distance between two material claw block clamping grooves. By the adoption of the welder, two heat pipes are welded at a time, the whole processes include conveying, feeding, welding and falling, two heat pipes are welded at the same time, efficient welding can be achieved, and various welding requirements can be met.

The invention discloses an aluminium sectional material spraying system which comprises a cleaning/oxidizing tank, a drying box and a spraying device, wherein the cleaning/oxidizing tank is used for carrying out cleaning and oxidizing treatment on the surface of aluminium sectional material; the drying box is used for drying the aluminium sectional material after cleaning and oxidizing treatment;the spraying device is used for spraying the dried aluminium sectional material; and the aluminium sectional material spraying system further comprises a rotating type conveying mechanism. The invention further discloses an aluminium sectional material spraying method by adopting the aluminium sectional material spraying system. The aluminium sectional material spraying system has the advantages of high cleaning efficiency and spraying uniformity.

The invention discloses a two-section implant with a spontaneous expansion function. The two-section implant is applied to restoration of teeth in dental implanting surgeries. The two-section implant comprises an implant body, an abutment, a connecting screw and an expansion screw, wherein the implant body is connected with the abutment through the connecting screw and is provided with an opening and a notch groove; the expansion screw is screwed into the implant body from the opening, and a wedged slope is utilized for promoting the expansion of the notch groove to generate a tensile force so as to make fastened. The expansion screw with a thread and a taper is screwed into the implant body, and the wedged slope is utilized for promoting the expansion of the notch groove so as to generate the tensile force, so that a fastening effect is achieved, the early-stage stability of the dental implant is improved, and a missing tooth can be restored immediately; and when the appearance of the implant is in the shape of an imitation human tooth root, the damage on bones of patients can be more minimized to a greatest degree on the premise of ensuring the early-stage stability.

The invention discloses a thin-walled cylinder girth welding device. The device comprises an arc welding machine, a grinding machine, an inner supporting tooling and an inner supporting lifting device. The arc welding machine and the grinding machine are arranged on the left and right sides of the inner supporting tooling correspondingly. The inner supporting tooling comprises a bottom platform, asupporting frame I and a plurality of supporting plates I uniformly distributed in the circumferential direction of the supporting frame I. The supporting plates I are connected with drivers I arranged on the supporting frame I and move synchronously in the radial direction under the effect of the drivers I, and one side surfaces of the supporting plates I are tightly attached to the inner wall surface of a cylinder section. The supporting frame I is arranged on a vertical lifting mechanism. The inner supporting lifting device comprises a supporting frame II and a plurality of supporting plates II uniformly distributed in the circumferential direction of the supporting frame II. The supporting plates II are connected with drivers II arranged on the supporting frame II and move synchronously in the radial direction under the effect of the drivers II, and one side surfaces of the supporting plates II are tightly attached to the inner wall surface of the cylinder section. By means of thethin-walled cylinder girth welding device, influences of the gravity factor on welding deformation can be eliminated, girth welding station automation can be achieved easily, and the assembling quality and efficiency are improved.

A spiral double-layer heat-preservation metal purging system, relates to the field of a chimney of a fireplace, and comprises an indoor vertical section, an indoor and outdoor communicating section and an outdoor vertical section; the indoor vertical section and the indoor and outdoor communicating section are connected by a 90-degrees one-way connector, the indoor and outdoor communicating section and the outdoor vertical section are connected by a 90-degrees two-way connector; the indoor vertical section, the indoor and outdoor communicating section and the outdoor vertical section all are connected by straight pipe connectors; entirely closed ring-shaped end closures are welded on the ends of all the straight pipe connectors, the 90-degrees one-way connector and the 90-degrees two-way connector; inner screws or outer screws are machined on the ring-shaped end closures; the connector of each section of the purging system is fastened by threaded tight connection. The purging system is simple in structure, the purging system is fastened by threaded tight connection, so the rain or steam is prevented completely from entering the heat-preservation cotton of the purging system, meanwhile, the mounting materials like hoops are saved, and the mounting efficiency is improved by more than three times than that of the purging system with hoops.

The invention discloses a medullary cavity file handle. The medullary cavity file handle comprises a pedestal, a handgrip and a plate spring, wherein the pedestal comprises a front-segment matrix and a rear-segment matrix, and the front-segment matrix is provided with an operation cavity; the operation cavity is arranged to penetrate the front end surface of the front-segment matrix, and a medullary cavity file insertion groove is formed on the front end surface; the operation cavity is internally fixedly provided with a first shaft rod and a second shaft rod; one end of the handgrip is installed in the operation cavity and is in pivoted connection with the first shaft rod, the other end of the handgrip extends out of the operation cavity, and a third shaft rod is fixedly arranged on the handgrip; the plate spring is simultaneously in pivoted connection with the second shaft rod and the third shaft rod; and a locking structure is formed at the front end of the plate spring. According to the invention, the plate spring is drawn through the handgrip, the locking structure on the plate spring realizes fastening on a file, locking and separation are quite convenient, besides, the pedestal, the handgrip and the plate spring are conveniently split for disinfection and packaging, and the operation safety is improved.

The invention discloses an abrasion-proof rotation structure. The abrasion-proof rotation structure is provided with a tightening cap, wherein the tightening cap is provided with a thread suitable to be screwed into a screwed hole; an outer elastic gasket is arranged between the tightening cap and an inner elastic gasket; a contact surface between the outer elastic gasket and the inner elastic gasket is in force fit; the contact surface is gradually expanded along the direction of the tightening cap which is screwed into the screwed hole. When the abrasion-proof rotation structure is practically used and when a clearance between the inner elastic gasket and the outer elastic gasket or between the inner elastic gasket and a rotating shaft exists due to abrasion, the tightening cap is screwed up clockwise or anticlockwise along the direction of the thread on the outer wall of the tightening cap; the tightening cap is extruded to the direction of the front section of the rotating shaft along the thread; meanwhile, the outer elastic gasket downwards moves to extrude the inner elastic gasket so as to solve the problem that a fixing device in the prior art can not be normally used after abrasion.

It is an object of the invention to improve usability of a sander. The sander includes a rotary working surface (105), a driving mechanism that is disposed above the rotary working surface (105) in a direction of the rotation axis of the rotary working surface (105) and rotationally drives the rotary working surface (105), a cylindrical housing (103) that houses the driving mechanism, and a movable handle (117) that is mounted on a surface of a cylindrical part of the cylindrical housing (103). The movable handle (117) can be turned around the central axis of the cylindrical housing (103) and can be fixed at an arbitrary position in a circumferential direction of the cylindrical housing (103).

The invention discloses a rotary type unfolding bolt fastener for single-side installation of a component. The rotary type unfolding bolt fastener is provided with a screw rod and a sleeve cylinder, the end part of the screw rod is spaced with three convex rotary shafts at the intervals of 120 degrees, the sleeve cylinder is matched with the screw rod, and is spaced with three convex rotary shafts at the intervals of 120 degrees which are matched with rotary sheets, the tail section of the screw rod is provided with threads which are matched with a screw cap, the middle section of the screw rod is provided with a polished rod, and the front end of the screw rod is provided with a support head; the support head is spaced with the rotary shafts at the intervals of 120 degrees and the six rotary unfolding type rotary sheets in two layers, each layer is provided with three rotary sheets, and the rotary sheets are matched with the rotary shafts on the sleeve cylinder; when the rotary sheets are unfolded, the diameter of the support part of the part, protruding out of the sleeve cylinder, of each rotary sheet is greater than the outer diameter of the sleeve cylinder and the diameter of the tail part, so as to realize the support function; when the fastener is installed, the screwing of the screw cap is locked by an inner screw rod, so the six rotary sheets are unfolded, and the single-side tightening is realized. The rotary type unfolding bolt fastener has the advantages that the installation of a bolt is completed at one side, and the single-side operation of the bolt is completed.

The invention relates to a rear cover assembly of an intelligent bearing storage gearbox. The rear cover assembly comprises a base, a rotating station device arranged on the base, a protection cover externally covering the base, and a gearbox rear cover assembly center arranged on the base and corresponding to the rotating station device; the rotating station device comprises a station driving motor, a station rotating disc, rotating stations, mould parts, U-shaped clamping bases and V-shaped positioning grooves, wherein the station driving motor is arranged on the base, the station rotating disc is in transmission connection with the station driving motor and is rotationally arranged on the base, the rotating stations are distributed on the station rotating disc according to working procedures, the mould parts each are arranged at the corresponding rotating station and are used for fixing the lower end surface of a gearbox cover, the U-shaped clamping bases are arranged on the symmetric two sides of the upper end faces of the mould parts, and the V-shaped positioning grooves are formed in the U-shaped clamping bases and are used for fixing lugs on the two sides of the gearbox cover; and the rotating station device plays a role in working procedure transfer connection. The rear cover assembly is reasonable in design, compact in structure and convenient to use.

The invention discloses a fruit and vegetable preservation device based on a nanosecond pulse low-voltage electric field. The fruit and vegetable preservation device comprises a treatment chamber anda nanosecond pulse electric field generating device, wherein the treatment chamber comprises a closed cavity, a box body with an open top and an upper cover arranged at the open top of the box body, the upper cover contains a copper sheet protecting path, the box body matches with the upper cover by virtue of a positioning assembly, and an electromagnetic device, the copper sheet protecting path and a work indicating lamp form a safety protection device together; and the nanosecond pulse electric field generating device comprises a nanosecond pulse power with adjustable parameters and a multichannel dual electrode sealed in an insulating barrier, and the multichannel dual electrode is connected with an electrode outgoing post. The electric field generating device forms a nanosecond pulse electric field in the box body, and fruits and vegetables are put in the nanosecond pulse electric field for performing electric field treatment, thereby achieving an enzyme inactivating effect by changing the inherent electric fields of the fruits and vegetables, inhibiting the respiratory action of the fruits and vegetables and achieving a good cold sterilization effect. The fruit and vegetable preservation device based on the nanosecond pulse low-voltage electric field has a convenient operation method, is pollution-free and suitable for preserving various perishable fruits and vegetables and has very high application value.