137results about How to "With limit function" patented technology

The inVention belongs to the technical field of noVel cigarettes, and particularly relates to a cigarette structure of a heating non-combustible cigarette. The heating non-combustible cigarette is composed of a cylinder hollow coiling block, a cleaning spacer sleeVe arranged at the front end of the coiling block, and a smoking product section and a cooling filtering section which are sequentiallyarranged inside the coiling block. By arranging the cleaning spacer sleeVe, a user can insert a heating body into a cigarette, no cut tobacco can drop out, meanwhile, small parts in smoking products cannot fall into a heater in the heating process, and cleanness in the heater is ensured.

The inVention belongs to the technical field of noVel cigarettes, and particularly relates to a cigarette structure of a heating non-combustible cigarette. The heating non-combustible cigarette is composed of a cylinder hollow coiling block and a cigarette front section, a cigarette middle section and a cigarette back section which are sequentially arranged inside the coiling block, and the diameters of the cigarette front section, the cigarette middle section and the cigarette back section are all equal to the inner diameter of the coiling block. By forming multiple sheet heating body insertion grooVes, a consumer can conVeniently insert sheet heating bodies into cigarettes. When the structure of the multiple sheet heating body insertion grooVes is adopted for heating, the surplus sheet type heating body insertion grooVes and suction resistance regulating air holes can jointly achieVe the air guiding effect, and the insertion grooVes can also replace the suction resistance regulatingair holes to directly achieVe the air guiding effect.

The invention discloses a square high-load air spring. The square high-load air spring comprises a sac body, an upper snap ring, a lower snap ring, an upper cover plate, a lower cover plate, an upper limiting part, a lower limiting part and a plurality of connecting pieces, wherein the sac body is formed by vulcanizing a sac body rubber, a framework layer, an upper seam allowance steel ring and a lower seam allowance steel ring together; the upper cover plate and the lower cover plate are provided with grooves which are matched with the shapes of the upper seam allowance steel ring and the lower seam allowance steel ring of the sac body; the sac body is assembled on the upper and lower cover plates through the grooves; the upper seam allowance steel ring of the sac body is tightly pressed on the upper cover plate by the upper snap ring, and the lower seam allowance steel ring of the sac body is tightly pressed on the lower cover plate by the lower snap ring; the upper and lower snap rings are connected and fastened to the upper and lower cover plates through the connecting pieces; the upper and lower limiting parts are positioned in the sac body, the upper limiting part is connected to the upper cover plate through the connecting pieces, and the lower limiting part is connected to the lower cover plate through the connecting pieces; and an air hole and mounting holes are formed on the upper cover plate.

The invention relates to a series four-way ball valve group. The series four-way ball valve group comprises a first four-way ball valve and a second four-way ball valve; a first valve element is arranged in a valve cavity of the first four-way ball valve, a second valve element is arranged in a valve cavity of the second four-way ball valve, and the first valve element and the second valve element are fixedly connected and synchronously rotate under the effect of a drive mechanism to achieve synchronous switching of the flow direction of fluid; the first valve element and the second valve element are fixedly connected and can rotate at the same time under the effect of the drive mechanism, through the structure, the flow directions of the fluid in the first four-way ball valve and the second four-way ball valve are switched at the same time, consistency of actions of the first valve element and the second valve element is ensured, and the interlocking function of the first valve element and the second valve element is achieved.

The invention discloses a vibration isolator outer sleeve which comprises a sleeve body integrally formed. The cross section of the sleeve body is of a non-equilateral polygon cylindrical structure. T-shaped support holes are formed in the side walls, corresponding to at lest two relatively-long edges, of the sleeve body. Each T-shaped support hole comprises a horizontal hole extending towards two sides and a vertical hole extending downwards from the middle of the horizontal hole. A jacking hole is formed in the side wall, above each support hole, of the sleeve body. The outside of the sleeve body is provided with a boss extending outwardly from each support hole and the corresponding jacking hole. Each boss recesses towards one side of the center of the sleeve body to form a pit. The sleeve is simple in structure, integrally formed, good in mechanical performance, long in service life, convenient to operate and good in limit effect, no special limit parts are needed, and a vibration isolator can be rotated into the sleeve from two directions and limited by the T-shaped support holes.

The invention discloses an earthquake-isolation energy dissipator for an ultra-high-voltage converter transformer. The earthquake-isolation energy dissipator comprises a plurality of earthquake-isolation supports, steel plates and thin rubbers which are arranged horizontally are arranged on the earthquake-isolation supports from top to bottom at intervals, and central holes are arranged at centers of the earthquake-isolation supports and provided with lead cores inside. The earthquake-isolation energy dissipator is characterized by further being provided with a squared foundation valve plate composed by steel beams, an upper connecting plate and a lower connecting plate, wherein the plurality of earthquake-isolation supports are installed at steel beam nodes of the foundation valve plate, the upper connecting plate and the lower connecting plate are parallel, and the upper and lower surfaces of the earthquake-isolation supports are connected with the centers of the upper connecting plate and the lower connecting plate respectively. According to the earthquake-isolation energy dissipator, the stability is guaranteed, simultaneously, the horizontal stiffness is small, the earthquake-isolation damping effect can be improved, soft limiting and anti-falling functions are provided, the safety of the earthquake-isolation energy dissipator under the action of earthquakes can be guaranteed, when the earthquake-isolation fails, a certain damping effect is also provided, and the safety function is provided in case of failure. The earthquake-isolation energy dissipator is low in construction cost, simple in construction and provided with good social benefits.

The invention discloses a prefabricated composite energy-dissipated steel beam and column structure with multi-stage damping and secondary amplification of displacement. The prefabricated composite energy-dissipated steel beam and column structure comprises a prefabricated steel beam, a prefabricated steel column, energy dissipation walls, notches, door and window holes, an upper connecting plate,a lower connecting plate, a vertical type moving displacement support, a displacement amplification rod, a L-shaped fixed support, a U-shaped sliding rod, lug plates, a gear rotating shaft, bolt pins, bolts, front and rear cover plates, fan-shaped notches, column type bearing blocks, limiting rotating plates, an annular groove, shear-resistant keys, shearing blocks, an outer circular ring, low yield point steel and an inner limiting ring. The prefabricated composite energy-dissipated steel beam and column structure is clear in energy dissipation mechanism, realizes multistage control energy dissipation and gives full play to the functions of each energy dissipation part at different stages through shear deformation of the shearing blocks and the yield energy dissipation of the low yield point steel. Furthermore, the horizontal displacement between layers of a structure is subjected to secondary amplification, the efficiency of energy dissipation is improved, the damage and failure ofa main body of a steel structure can be effectively reduced, and replacement is convenient after the earthquake or after the damage.

A rocker arm and clamping mechanism of a digital display type radial drilling machine comprises a rocker arm, a pushing shaft, a piston, a cam, a support, an oil cylinder, an oil cylinder head, a clamping pressing plate, a pull rod, a lever and a hinging shaft. The rocker arm is provided with the pull rod and connected with the clamping pressing plate, the lever is fixed to the rocker arm through the hinging shaft, and the rocker arm is provided with the pushing shaft and the support; the oil cylinder is mounted on the support, the piston and the cam are mounted in the oil cylinder, and the oil cylinder head is mounted on the oil cylinder. According to the working principle, the rocker arm is mounted on a guide rail type outer rectangular post A and moves up and down along the guide rail type outer rectangular post A, and the guiding precision of the rocker arm and the guide rail type outer rectangular post A is guaranteed. According to the rocker arm and clamping mechanism, stepless speed changing of a spindle can be achieved under the non-halt condition, and working positions can be displayed through figures and numbers; the guiding precision of a guide rail is high, the spindle has a limiting function and is flexible and reliable, and a control system is advanced; the rocker arm and clamping mechanism is simple and reasonable in structure, convenient and quick to operate and high in working efficiency and can be applied to the machining industry.

The invention discloses a vibration isolation and reduction bracket for cable structures, comprising a support member (1), a vibration isolator (3), a hydraulic vibration reducer (6), a spring (7), a regulating nut (5), and a connecting pedestal (4). An adjustable combined vibration reducer (B) is composed of the spring (7), the hydraulic vibration reducer (6) inside the spring and the regulating nut (5), wherein the spring (7) provides support force, stiffness and reset ability, the regulating nut (5) regulates the length of the spring (7) to ensure that there is no tensile stress at a support member the root (A) in the balanced position, and the hydraulic vibration reducer (6) plays a role in in-plane buffer, displacement control, energy consumption and vibration reduction. The vibration isolator (3) produces shear deformation and consumes energy, and can reduce out-of-plane longitudinal vibration caused by action of the support member (1). By adopting the vibration isolation and reduction bracket for cable structures, fracture or fatigue damage of the support member root (A) caused by in-plane and out-of-plane three-direction vibration is solved, the redundancy of cable structures is enhanced, and the safety and using performance of a supported structure (2) are improved.

The invention discloses a ground well lifting mechanism, which comprises a wheel disc with a wheel disc groove, a box body with a cover plate and a worm and gear mechanism, a worm shaft, a gear shaft, a driving gear, a gear wheel, a bearing clip, a lifting wheel disc shaft and a clutch which are arranged in the box body, wherein the worm and gear mechanism is connected with the clutch through the worm shaft; the clutch is connected with the gear shaft through the bearing clip; the driving gear is arranged on the gear shaft; the gear wheel is meshed with the driving gear; the lifting wheel disc shaft is arranged on the gear wheel; the wheel disc is arranged on the lifting wheel disc shaft and positioned outside the box body; an Archimedes cam is also arranged outside the box body to be meshed with the gear shaft; and a motor is connected with the worm and gear mechanism. In the invention, the component members of the lifting mechanism are combined in the box body according to functions, the members are used effectively, the cost is reduced, the installation area is small, quick falling and limiting functions are realized, the safety of the mechanism is improved, and the safety of relates person and materials are ensured.

The invention discloses an electronic hydraulic door closer which comprises an external mechanism, a door stop solenoid valve and a rocker arm. The external mechanism comprises a stop plate, a mount plate and a stop plate limiter. The rocker arm of the door closer comprises a rocker arm body and a regulating arm connected in sequence; a rotation shaft and the stop plate with limit angle capable of being regulated rotationally are arranged on the rocker arm; the stop plate is provided with a limit notch, the limit notch is meshed with a steel ball in the rocker arm body, and the steel ball is abutted by a spring. As an oil circuit and an end cap of the door closer are connected into a whole, the integral structural design of the door closer is much more reasonable and compacter, the structure size of the door closer is reduced, maintenance and changing of the door closer are facilitated, and the door closer has higher specificity.

The invention relates to a foldable three-wheel transportation tool with an automatic reset steering component. The foldable three-wheel transportation tool with the automatic reset steering component comprises a handle bar (15), a saddle (2), pedals (5), rear wheels (11), a front frame (4-1), a rear frame (4-2) and the steering component (16) connected between the front frame (4-1) and the rear frame (4-2), wherein the steering component (16) comprises a rotating shaft (16-9), a bearing seat (16-7), a shaft fixing piece (16-10), two deep groove ball bearings, an elastic steel piece (16-15) and two fixing piece L-shaped elastic steel piece fixing pieces (16-1, 16-13), the rotating shaft (9) is fixedly connected with the bearing seat (16-7) through the deep groove ball bearings, the deep groove ball bearings (16-5) are installed in the bearing seat (16-7), and the shaft fixing piece (16-10) is installed on the rotating shaft in a located mode; the elastic steel piece (16-15) penetrates through the rotating shaft (16-9). The foldable three-wheel transportation tool with the automatic reset steering component has the advantages that the radius of a turning circle is small, the side turning is not prone to occurring, the stability is good, and the foldable effect is achieved.

The invention discloses an automatic strapping and packing machine and a strapping and packing technology thereof. The automatic strapping and packing machine comprises a transit detection platform, alinkage feeding mechanical arm, sheet stacking platforms, sheet picking and rotating mechanisms, belting and strapping mechanism, bundle picking and blanking mechanical arms and a stock box; the transit detection platform is arranged on a rack, the linkage feeding mechanical arm is arranged on the front side of the transit detection platform, and two sets of stock suction assemblies are arrangedon the linkage feeding mechanical arm at intervals; the sheet stacking platforms are arranged on the right side of the transit detection platform at intervals; the sheet picking and rotating mechanisms are arranged on the rear sides of the sheet stacking platforms, and stacked glass sheets in the sheet stacking platform are clamped and picked out by the sheet picking and rotating mechanisms and rotate to the vertical direction; the belting and strapping mechanisms are arranged on the side portions of the sheet picking and rotating mechanisms; the bundle picking and blanking mechanical arms are arranged on the right sides of the sheet picking and rotating mechanisms. The automatic strapping and packing machine effectively reduces membrane material collision between the adjacent glass sheets and membrane material collision between the glass sheets and external objects, effectively achieves concentrated storage of the glass sheets, and greatly improves the storage efficiency of the glasssheets.

The invention discloses a production device for preparing tic whiskers, and belongs to the technical field of drying devices, an upper cover is arranged at one end of a drying tank, a heating plate and a limiting block are fixedly connected to the inner wall of the drying tank, a supporting rod is fixedly connected to one surface of the limiting block through a screw rod, and a water collecting box is fixedly connected to one end of the supporting rod; the center of the bottom of the water collecting box is fixedly sleeved with a sealing bearing, the center of the sealing bearing is fixedly sleeved with a shaft rod, and the other end face of the shaft rod is fixedly connected with a rotating rake through a screw. According to the production device for preparing the tic whiskers, the horn-shaped filter screen convenient to assemble and disassemble has a vibration function, the solid-liquid separation efficiency is improved, the discharging speed of crystal whiskers can be increased, thearranged water collecting box has the function of automatically collecting liquid, the liquid can be rapidly guided out of the drying tank, the temperature in the drying tank is prevented from beingaffected by the liquid, the drying speed of the crystal whiskers is increased, and then production efficiency is improved.

The invention discloses a ladle turnover mechanism. The ladle turnover mechanism comprises a turnover mechanism fixing frame; the turnover mechanism fixing frame is provided with a ladle fixing turnover device horizontally and rotationally connected with the turnover mechanism fixing frame; the ladle fixing turnover device comprises a horizontally arranged rotary shaft; the two ends of the rotary shaft are rotationally connected with the turnover mechanism fixing frame; the middle of the rotary shaft is fixedly connected with a ladle fixing frame; the ladle fixing frame comprises an arc groove in fit with a ladle in appearance; a ladle fixing device is arranged inside the arc groove; the ladle turnover mechanism further comprises a drive device capable of making the ladle fixing turnover mechanism rotate around the rotary shaft. The ladle turnover mechanism has the characteristics of being safe in operation, high in automation degree and the like.

The invention discloses a straightening plier for a secondary cable core. The straightening plier comprises first and second plier bodies and a mold core part. The middle parts of the first and second plier bodies are connected via a rotating shaft. The mold core part comprises an upper mold core and a lower mold core. The upper mold core is arranged at the front end of the first plier body. The lower mold core is arranged at the front end of the second plier body. The upper and lower mold cores are provided with grooves which are matched with each other. The straightening plier is small in size, convenient to carry, simple in operation, convenient to use and great in straightening effect so that manual work is substituted. Meanwhile, the mold core can be replaced according to different specifications of the cable core so that application range is wide. The straightening plier has a position-limiting function so that strength can be well controlled, and loss of the cable core in the compressing process can be prevented.

The invention belongs to the technical field of pipe fitting plastics, and particularly relates to a hot melting connector capable of being quickly positioned, and a water dissolving core injection molding process thereof. The hot melting connector comprises a connector body provided with at least one installing end, wherein an installing site is arranged on an inner wall of the connector body; aguiding core is arranged on the installing site; an outer side wall of the guiding core is a guiding surface; a hot melting guiding part adaptive to the wall thickness of a hot melting pipe is formedbetween the guiding surface and an inner wall of the installing end; a guiding opening is formed in the outer end of the hot melting guiding part. The guiding core provided by the invention has the following effects that a, during heating, the guiding core can be prevented from being inclinedly or one-sidedly heated; b, during hot melting, a pipeline and the connector keep in a straight line, so that an annular fusion welding surface is uniformly fusion-welded, and the occurrence of the phenomenon of one-sided fusion welding is avoided.The injection molding process provided by the invention isapplied to the plastic industry and is mainly aimed at the plastic products which have complex inner cavity larger than the outer port and are not suitable for the core demoulding treatment. The plastic products produced by the injection molding process can integrally form a complex inner cavity, the core demoulding is not needed, the manufacturing cost is low and the water dissolving core can beeasily removed by water washing.

The invention discloses a limiting device for a hopper car bottom door opening and closing mechanism, and belongs to the technical field of freight vehicles. The limiting device specifically comprisesan upper transmission shaft, the upper transmission shaft drives a bottom door to be opened or closed through rotation, the limiting device comprises a limiting swing arm fixedly connected with a swing block, and a limiting mechanism which comprises a deflector rod device and a positioning block, and the deflector rod device drives the positioning block to longitudinally move along the guide structure so that the positioning block moves to different positioning gears; the swing block of the upper transmission shaft drives the limiting swing arm to rotate to the positioning blocks of differentgears so that the rotating angle of the upper transmission shaft is limited, and the opening state of the bottom door is controlled. The opening angle and the ballast unloading flow of a ballast unloading bottom door are achieved by controlling the rotating angle of the transmission shaft, and the functions of mistaken rotation prevention, multi-gear ballast unloading flow control and limiting when the bottom door is located at the full-open position are achieved.