12results about How to "Reduce compression deformation" patented technology

The utility model relates to a low temperature resistant insulated power cable, which comprises a cable body, a conductor shielding structure, a filling structure and an outer protection structure, and is characterized in that a first sheath is made of a low temperature resistant polyethylene material, has better tolerance at low temperature, and plays a first-step low temperature resistant protection effect on the power cable on the inner side of the first sheath; the second sheath is adhered to the outer side of the first sheath, the second sheath is made of polyvinyl chloride, has a cold-resistant property and has a second-step cold-resistant protection effect on the power cable, and the metal tape armoring layer is extruded on the outer side surface of the flame-retardant oxygen barrier layer, so that the supporting effect of the power cable is enhanced, and the service life of the power cable is prolonged. And the outer sheath adopts halogen-free low-smoke flame-retardant polyolefin as a protective material of the outermost layer, and can tolerate in an environment of minus 40 DEG C, so that the low-temperature resistance of the power cable is enhanced, the use effect of the power cable is improved, and the service life of the power cable is prolonged.

The utility model discloses a corrugated high-temperature-resistant cable protection tube, which belongs to the technical field of cable protection tubes and comprises an inner tube body, and a honeycomb tube body is wrapped on the outer wall of the inner tube body. The outer pipe body wraps the side, away from the inner pipe body, of the honeycomb pipe body, a corrugated pipe body is spirally wound on the outer wall of the outer pipe body, air holes are formed in the corrugated pipe body, flange rings are arranged at the two ends of the outer pipe body, and mortises are formed in the sides, away from each other, of the flange rings. Through the arrangement of the corrugated pipe body matched with the arrangement of the honeycomb pipe body, the overall pressure resistance of the cable protection pipe can be greatly improved, and meanwhile through the auxiliary improvement of the buffering effect, the impact resistance effect of the pipe body is further improved, so that the ring stiffness of the cable protection pipe is further improved, and the service life of the cable protection pipe is prolonged. And the situation that the pipe body is pressed to deform or crack due to insufficient ring stiffness is effectively reduced.

The utility model relates to the technical field of infusion pumps, in particular to an infusion pump use calibration device which comprises an infusion pump calibration device body, a cavity is formed in one side of the infusion pump calibration device body, a penetrating-in through opening is formed in the top of the cavity, a penetrating-out through opening is formed in the bottom of the cavity, pipe clamp devices are installed in the cavity at intervals, and pipe clamps of the pipe clamp devices are symmetrically installed. Each pipe clamp comprises a support, a roller and a flexible rubber sleeve, the supports are fixedly connected with the inner plate face of the cavity, the supports are movably provided with the rollers through shafts, the rollers are fixedly sleeved with the flexible rubber sleeves, and gaps are reserved between the pipe clamps in the same set. According to the infusion pump calibration device, a plastic clamp in the infusion pump calibration device is replaced by the pipe clamp device, the pipe clamp device has the advantages of being capable of rolling under stress, soft in material and capable of rebounding clamping force, resistance to installation and removal of an infusion tube can be reduced, compression deformation is reduced when the infusion tube is clamped and fixed, the anti-skid particles are arranged on the outer surface of the flexible rubber sleeve, and therefore the infusion pump calibration device is convenient to use. And the friction force for clamping the infusion tube is increased, so that the infusion tube is clamped and fixed more stably.

The present application discloses a three-phase integrated elliptical voltage transformer for 220kV high-voltage switch, belonging to the technical field of voltage transformer, which includes a housing, a plurality of prestressed components and three voltage transformer bodies located in the housing, a shielding member located between two adjacent voltage transformer bodies is provided in the housing, the housing includes a cover plate, an elliptical middle shell and a base; each prestressed component is arranged at intervals along the circumferential direction of the middle shell, the prestressed component includes a force transmission structure, a steel strand, a first anchoring structure and a second anchoring structure, the force transmission structure is fixed on the concave arc surface of the middle shell, the first anchoring structure is used to fix one end of the steel strand on the cover plate, the second anchoring structure is used to fix the other end of the steel strand on the base, the steel strand is in a taut state, the steel strand abuts on the force transmission structure, and the tensioning force of the steel strand is applied to the concave arc surface of the middle shell through the force transmission structure. The present application has both the reduction of the housing volume and the improvement of the housing pressure resistance.

This utility model discloses a flat-jaw vise with accurate positioning and high positioning precision. The lower end of the fixed jaw is fixedly installed on one end of the base, and the support of the pushing mechanism is slidably and fixedly installed on the base. The lower end of the movable jaw clamping block is slidably installed on the base, with a movable jaw fixed at one end and a mounting hole at the upper end and a threaded hole I at the lower end of the other end. A steel ball mounting groove is formed on the U-shaped groove wall near the movable jaw. The upper surface of the L-shaped angle block is provided with an inclined surface, which is placed in the U-shaped groove of the clamping block. Its lower end is slidably installed on the base, and its inclined surface presses against the steel ball. A set screw threaded into the threaded hole I of the clamping block is pressed against the end face of the L-shaped angle block away from the movable jaw. The lead screw passes through the mounting hole of the clamping block and abuts against the end face of the L-shaped angle block away from the movable jaw. This utility model has a good inclined pressing effect, accurate positioning, good stability, and high positioning precision, which can meet the needs of high-precision machining of workpieces.

The invention discloses a three-phase integrated oval voltage transformer for a 220kV high-voltage switch, and belongs to the technical field of voltage transformers, the three-phase integrated oval voltage transformer for the 220kV high-voltage switch comprises a shell, a plurality of prestress assemblies and three voltage transformer bodies located in the shell, and a shielding piece located between every two adjacent voltage transformer bodies is arranged in the shell; the shell comprises a cover plate, an elliptical middle shell and a base; the prestress assemblies are arranged at intervals in the circumferential direction of the middle shell, each prestress assembly comprises a force transmission structure, a steel strand, a first anchoring structure and a second anchoring structure, the force transmission structures are fixed to the inner concave arc face of the middle shell, the first anchoring structures are used for fixing one end of the steel strand to the cover plate, and the second anchoring structures are used for fixing the other end of the steel strand to the cover plate. The second anchoring structure is used for fixing the other end of the steel strand to the base, the steel strand is in a tightened state and abuts against the force transmission structure, and the tensioning force of the steel strand is applied to the inner concave arc face of the middle shell through the force transmission structure. According to the invention, the size of the shell is reduced and the anti-pressure capability of the shell is improved.

The utility model discloses an ultra-large space grid structure convenient to hoist, which comprises a truss, a herringbone frame is fixedly mounted at the top of the truss, a fixed column is fixedly connected to the top of the herringbone frame, a hoisting ring is fixedly connected to the top of the fixed column, and balance mechanisms are fixedly mounted on the front side, the back side and the two sides of the truss. The balance mechanism comprises a short column, a winding drum fixedly installed in the middle of the short column and a traction rope connected to the surface of the winding drum in a wound mode, a cross beam is fixedly connected to the top of the inner side of the propeller strut, a reinforcing beam is fixedly connected to the middle of the inner side of the propeller strut, and a V-shaped support is fixedly connected to the bottom of the cross beam; according to the ultra-large space grid structure convenient to hoist, the whole grid structure is convenient to hoist, follow-up installation work of the grid structure is facilitated, the cross beams, the V-shaped supports and the reinforcing beams are additionally arranged on the top of the inner side of the propeller strut in the using process of the grid structure, and the phenomenon that the top of the grid structure is pressed and deformed is reduced.

The utility model belongs to the technical field of cartons, and particularly relates to a compression-resistant cigarette carton which comprises a sealing cover, a buffer layer, a supporting frame and a carton body, mounting grooves are formed in the inner side walls of the periphery of the carton body, mounting parts matched with the mounting grooves are arranged on the outer sides of the periphery of the supporting frame, and clamping grooves are formed in the inner side walls of the sealing cover. Clamping blocks on the periphery of the buffer layer are connected with the clamping grooves so that the buffer layer can be positioned on the inner side of the sealing cover. The supporting frame effectively supports the side wall of the carton body, and the carton is prevented from deforming due to external pressure during transportation or storage; meanwhile, the overall structural strength and the bearing capacity of the carton are improved, the carton is more stable during transportation, carrying and stacking, the possibility that the carton deforms due to the weight during stacking is reduced, and therefore cigarette boxes in the carton are protected. The buffer layer can absorb impact and vibration, the cigarette case is tightly attached to the supporting frame in the case body through elastic deformation, and the cigarette case is prevented from being extruded to deform or shaken to be abraded and the sealing cover is prevented from being pressed to deform. In addition, the support frame and the buffer layer are detachably mounted, so that the local damage can be conveniently and quickly replaced, and the maintenance cost is reduced.

The utility model relates to the technical field of crane equipment, and discloses a crane driving wheel set, which comprises a driving motor and a wheel body, the output end of the driving motor is fixedly connected with a central shaft, the middle parts of the left and right ends of the wheel body are fixedly connected with fixed seats, and the left and right ends of the wheel body are fixedly connected with guide rings. Reinforcing ribs are fixedly connected to the surface of the top end of the guide ring, a guide rail is arranged below the wheel body, two moving grooves are formed in the top end of the guide rail at equal intervals, two sliding grooves are formed in the bottom end of the guide rail at equal intervals, and balance assemblies are movably connected to inner cavities of the sliding grooves; the wheel body is made of high-strength and high-toughness alloy steel or cast iron materials, meanwhile, the wear-resistant layer is sprayed on the outer surface of the wheel body, the wear resistance of the wheel is improved, it is guaranteed that when a crane carries heavy objects to move, the wheel set can be evenly stressed and kept balanced through the balance assembly, and meanwhile the stability of moving on a track is guaranteed.

The utility model relates to the technical field of pipeline head channeling, in particular to an automobile air conditioner pipeline head channeling device which improves the pipeline head channeling machining effect of the device, reduces the situation that a pipeline is pressed and deformed in a single direction, and improves working efficiency and use convenience. Comprising a first guide piece and two shells, and the two shells are slidably mounted in the first guide piece; the device further comprises a driving device, a supporting device, two sets of first motors, a lower channeling wheel and an upper channeling wheel, the driving device is arranged in the first guiding piece and used for providing power for sliding of the two sets of shells, and the two sets of first motors are installed on the inner side walls of the two sets of shells correspondingly. The lower channeling wheel and the upper channeling wheel are rotationally installed on the outer side walls of the two sets of shells respectively, the output ends of the two sets of first motors are connected with the lower channeling wheel and the upper channeling wheel respectively, the lower channeling wheel and the upper channeling wheel are oppositely arranged up and down, and a groove matched with the upper channeling wheel is formed in the outer side wall of the lower channeling wheel.

The invention discloses a non-rigid casing and a constraint machining method thereof, belongs to the technical field of machining, and comprises technological processes and constraint conditions. The machining method is used for solving the problems that according to a machining method of a non-rigid case in the prior art, deformation is prone to being generated in the machining process, the coaxiality or position degree of parts is out of tolerance, the assembly precision is affected, and the assembly stress is increased. According to the method, the technical requirements of the constraint state and the free state are clearly distinguished, and the deformation control is enhanced. The flatness error of the reference surface in a free state is controlled to reduce the compression deformation of the casing; the roundness error of the reference circle in a free state is controlled to reduce the positioning deformation of the cartridge receiver; the technical requirement of controlling the free state is to strengthen the control of cutting parameters, namely cutting force; the shape error of the case in the machining state is limited by adopting reasonable constraint conditions, so that the machining state and the assembly state of the case are consistent, the assembly precision of the case on an engine is improved, and the assembly stress is reduced.

The utility model relates to the field of heat transfer printing equipment, and provides a multi-station cutting and rolling material labeling machine which comprises a rack assembly. The rotating mechanism is rotationally arranged on the rack assembly, and the rotating mechanism is connected with a driving structure; the carrying table mechanism is arranged on the rotating mechanism, the carrying table mechanism is provided with a plurality of negative pressure die holders, and each negative pressure die holder is in linkage with the carrying table mechanism in the circumferential direction; the negative pressure mold bases are used for positioning the heat transfer printing carrier and enabling the heat transfer printing carrier to rotate along with the carrying table mechanism, and all the negative pressure mold bases are jointly connected with a negative pressure generator; the cutting and transferring mechanism is arranged on the rack assembly, and the cutting and transferring mechanism is located on the rotating path of the negative pressure die holder; and the hot pressing mechanism is arranged on the rack assembly, and the hot pressing mechanism is located on the rotating path of the negative pressure die holder and located at the rear end of the cutting and transferring mechanism. On the basis, the feeding station and the hot-pressing station are separated, so that the possibility of accidental hand pressing of the hot-pressing mechanism can be greatly reduced, and the safety coefficient is improved.