165results about How to "Guaranteed friction" patented technology

The invention discloses a punch forming device for producing an automobile engine oil pan, and relates to the technical field of punch forming, and the punch forming device comprises a composite mechanism. According to the punch forming device for production of the automobile engine oil pan, through the design of the composite mechanism, materials are placed in the processing mechanism and conveyed to the composite base through the processing mechanism, then a movable cross beam is controlled through a hydraulic column to enable a pressing module to extrude a bearing module, and therefore the punch forming effect is achieved; the effect of manually laying materials is reduced, potential safety hazards of operators are reduced, the operation environment is optimized, after long-time operation of the bearing module, parts can be seriously abraded, and therefore the stamping precision of follow-up materials is affected, the bearing module can be replaced, and in the process that the pressing module extrudes the materials towards the bearing module, the pressing module can be replaced, and the pressing module can be replaced. And the magazine mechanism contracts to store force, so that after stamping is finished, ejection is performed through the magazine mechanism, the effect of preventing material adhesion is achieved, and the subsequent operation efficiency is prevented from being influenced.

The invention provides a sandstorm instrument, and particularly relates to the technical field of sandstorm monitoring, the sandstorm instrument comprises a base, a fixed shaft is fixedly connected to the center of the top surface of the base, a movable shaft is rotatably connected to the end, away from the base, of the fixed shaft, and a monitoring frame body is fixedly connected to the end, away from the fixed shaft, of the movable shaft; a windward plate is fixedly connected to the side, away from the moving shaft, of the monitoring frame body, the two blocking shells are both made of transparent visible materials, the two blocking shells are used for shielding the outer sides of the laser emitting device, the infrared camera and the light source detection device, and on the premise that the monitoring effect is not affected, it is avoided that a large amount of dust is attached to the surface of a monitoring component in the wind and sand instrument, and the monitoring efficiency is improved. The outer surfaces of the two blocking shells are purged in real time in cooperation with the two cavity plates, dust attached to the blocking shells is further reduced, normal monitoring of the laser emitting device and the light source detection device and image collection of the infrared camera cannot be affected by the purging mode, and therefore the effectiveness of sand monitoring is guaranteed.

The invention relates to a tower drum cleaning robot and a control method thereof, the tower drum cleaning robot comprises a cleaning brush, a plurality of adjusting devices, a data acquisition device and a control part, the cleaning brush comprises a center rod and a plurality of mounting plates, and the adjusting devices are in one-to-one correspondence with the mounting plates; the data acquisition device is used for acquiring pose information of the tower drum cleaning robot, and the control part is electrically connected with the adjusting device and the data acquisition device. According to the tower drum cleaning robot, the control part can control the adjusting device to act according to the pose information of the tower drum cleaning robot so as to adjust the distance between the mounting plate of the cleaning brush and the center rod, and therefore the friction force between bristles on the mounting plate and the side wall of the tower drum is adjusted; it is guaranteed that the tower drum cleaning robot has proper friction force when located at all positions of the wind power tower drum, and the side wall of the tower drum can be prevented from being scratched by bristles under the condition that the cleaning effect is guaranteed.

The utility model discloses an anti-corrosion and anti-wear silica gel roller way, which relates to the technical field of roller ways and comprises a plurality of rollers and a support, the plurality of rollers are arranged in the support, support shafts are fixedly arranged at two ends of each roller and are movably arranged in the support through bearings, and the support shafts are arranged on the support through bearings. The outer side of the roller is sleeved with a silicon rubber sleeve. The silica gel sleeve is arranged on the outer side of the roller, the friction force between the roller and a steel plate can be guaranteed through the silica gel sleeve, so that the conveying effect of the roller on the steel plate is guaranteed, the supporting blocks are arranged on the outer side of the roller, and when the silica gel sleeve is seriously abraded, the position of the supporting blocks can be adjusted to relieve limiting on the silica gel sleeve. Meanwhile, the position of the silica gel sleeve can be adjusted according to the abrasion condition of the silica gel sleeve, so that the abrasion-resistant effect of the silica gel sleeve is improved, and the service life of the silica gel sleeve is prolonged.

The utility model discloses an anti-skidding ceramic bowl which comprises a ceramic bowl body and an anti-skidding assembly. According to the anti-skid ceramic bowl, when the ceramic bowl body is used, the multiple sets of second friction blocks arranged at the lower end of the base at the bottom of the ceramic bowl body can guarantee the anti-skid effect of the ceramic bowl body in the placing process, and when the anti-skid requirement is too high, the ceramic bowl body can be screwed downwards, so that the stud at the bottom of the ceramic bowl body extrudes the movable disc in the base, and the anti-skid effect is achieved. The movable blocks on the two sides of the bottom of the movable disc are pressed to move downwards, so that the friction force of the ceramic bowl body in the placing process is ensured through the multiple sets of first friction blocks on the lower portions of the movable blocks, the anti-skid performance of the ceramic bowl body in the using process is enhanced, and meanwhile the anti-skid degree is adjusted through rotation adjustment of the ceramic bowl body; the whole height of the ceramic bowl body can be adjusted by holding the base installed at the bottom of the ceramic bowl body, the anti-scalding performance of the ceramic bowl body in use can be achieved by holding the base installed at the bottom of the ceramic bowl body, and therefore the practicability of the ceramic bowl body in use is comprehensively improved.

The utility model provides an automatic hammering device for low-strain detection of a pile foundation. The automatic hammering device for low strain detection of the pile foundation comprises a supporting plate, a driving device and a driving device, wherein a limiting opening is formed in the supporting plate; the connecting rod is movably placed in the limiting opening; the knocking hammer is fixed at the bottom of the connecting rod; the air cushion is fixedly mounted at the bottom of the knocking hammer; the stabilizing assembly is arranged on the supporting plate, and the stabilizing assembly is used for stabilizing the angle of the connecting rod; and the multiple adjusting assemblies are all arranged on the supporting plate. The automatic hammering device for low-strain detection of the pile foundation has the advantages that the hammering position can be conveniently positioned, and meanwhile vertical hammering can be guaranteed.

According to the technical scheme, the valve with the limiting mechanism is characterized in that the valve comprises a main box body, a guide cavity is formed in the main box body, a rotating rack is rotationally arranged in the main box body, a drainage cavity is formed in the rotating rack and is communicated with the guide cavity, and the rotating rack is rotationally arranged on the upper end face of the main box body; the lower end face of the rotating rack is fixedly connected with the rotating rack, a positioning rack is fixedly arranged on the outer circle face of the rotating rack, a limiting rack capable of moving up and down is arranged on the main box body and can cover the positioning rack, and then the limiting effect is achieved; a heat insulation rack is fixedly arranged on the rear end face of the main box body, and a heat conduction pipe is fixedly arranged on the rear end face of the main box body; the temperature adjusting cavity is formed in the heat conduction pipe and communicated with the guide cavity, and the storage cavity is formed between the heat insulation rack and the heat conduction pipe, so that automatic deflection of the rotating rack due to external stress is avoided, the limiting function of the valve is ensured, the stability of subsequent use is further ensured, and the practicability of the valve is ensured.

The utility model belongs to the technical field of cleaning supplies, and particularly relates to a layered solid toilet cleaner which comprises a toilet cleaner body, a packaging assembly is arranged outside the toilet cleaner body, and the problems that functional components of the solid toilet cleaner are unreasonably released, and packaging is not easy to tear are solved. When the toilet cleaner is used, a user can hold the anti-slip lines on the surface of the soluble film with one hand, so that the toilet cleaner body can be firmly held, the tearing piece is pinched with the other hand, tearing is carried out along the direction of the second indicating arrow, the outer-layer protective film is torn along the tearing line, a section of the toilet cleaner is exposed, and at the moment, the exposed toilet cleaner body can be held with the hand, and the other half of the outer-layer protective film is taken down. The surface of the toilet cleaner body is wrapped with the easily-soluble film, so that hands are prevented from making contact with the surface of the toilet cleaner body, the easily-soluble film can be rapidly dissolved after making contact with water, use of the toilet cleaner is not affected, and the problem that the package is not easy to open is effectively solved.

The utility model discloses a sand-blasting and zinc-spraying rotating platform for a bridge stay cable anchorage device. The sand-blasting and zinc-spraying rotating platform comprises a bearing pedestal, a rotating cylinder, a hinged base, a supporting device and a bottom bracket, the top surface of the bearing pedestal is a bearing surface, the bearing surface is used for placing a bridge stay cable or an anchorage device, a rotating cylinder is mounted at the bottom of the bearing pedestal, the rotating cylinder is rotatably mounted on a hinge base, the hinge base supports the rotating cylinder, at least three supporting devices are mounted on the hinge base, and rotatable supporting rollers are arranged in the supporting devices. The supporting rollers support the ground of the bearing pedestal, and the axial leads of all the supporting rollers are located in the radial direction of the rotating cylinder; the hinge base comprises a guide cylinder, a ball bearing and a base body, and the guide cylinder and the supporting device are installed on the base body. The sand blasting and zinc spraying rotating platform for the bridge stay cable anchorage device solves the problem that in the prior art, due to the fact that a rotating platform needing to bear an anchorage device is large, the production difficulty of a large-area supporting face is large.

The invention relates to a reverse friction buckling-restrained energy dissipation support and a control method, the reverse friction buckling-restrained energy dissipation support comprises a buckling-free energy dissipation unit, a forward constraint unit and a reverse constraint unit, and the forward constraint unit is arranged at one end of the buckling-free energy dissipation unit and is in sliding connection with the end of the buckling-free energy dissipation unit; the reverse constraint unit is arranged at the other end of the buckling-free energy dissipation unit and is fixedly connected with the end of the buckling-free energy dissipation unit; wherein the forward constraint unit and the reverse constraint unit are oppositely arranged, and when the support bears an axial load, the forward constraint unit and the reverse constraint unit respectively follow different end parts of the buckling-free energy dissipation unit to move in opposite directions, so that a reverse friction mechanism is realized. According to the reverse friction buckling-restrained energy dissipation support and the control method, the double-order yield of the buckling energy dissipation support is fused with the support limiting device, meanwhile, the friction force in the energy dissipation core of the buckling restrained support is self-balanced, the deformation uniformity of the support is improved, and therefore the fatigue performance is improved. The overall structure of the support is free of numerous external additional devices, low in manufacturing cost and convenient for engineering application.

The invention provides an arc surface positioning and punching device for driving shaft machining and an operation method of the arc surface positioning and punching device, and relates to the field of punching. According to the arc surface positioning and punching device for machining the driving shaft and the operation method of the arc surface positioning and punching device, swing supports are installed on a base, supported through elastic pieces, provided with triangular structures and rotate around rotating shafts of the swing supports when stressed, the two sets of swing supports are symmetrically arranged, and pressure applying wheels and supporting wheels are rotatably arranged on the swing supports. The pressure applying wheel is used for applying pressing force to the driving shaft, and the supporting wheel is used for supporting the driving shaft; according to the arc surface positioning and punching device for driving shaft machining and the operation method of the arc surface positioning and punching device, rapid positioning and alignment can be achieved, driving shafts with different diameters can be automatically adapted, the driving shafts are directly driven through the friction force between an anti-skid belt and the driving shafts, circumferential angle adjustment is achieved, a winding wheel is controlled to rotate through a double-shaft servo motor, and the working efficiency is improved. And moving the unworn new section of the anti-skid belt to a contact area with the driving shaft to replace the original worn contact surface.

The utility model discloses a gearbox housing snatchs the grab hand belongs to gearbox production technical field. The device includes hoisting subassembly, and hoisting subassembly output is provided with the hoisting plate, and the front clamping plate is fixedly arranged in the hoisting plate front side, and the back clamping plate that cooperates with the front clamping plate is movably connected to the hoisting plate rear end, and the hoisting plate is provided with the clamping mechanism that is used for driving the back clamping plate bottom to draw close to the front clamping plate to hold the gearbox housing for cooperation, and the vertical vibration motor that is used for generating the up and down direction vibration is fixedly arranged on the front clamping plate top. The utility model discloses when using, and the vertical vibration motor is with 200 300Hz high frequency micro amplitude vibration direct action on the shell joint surface, and only needs 5 seconds to make the up and down shell body and internal component accurate adhesion, and the efficiency is improved. The first, second cooperation piece of rubber material guarantees friction force and prevents slipping, and also avoids shell surface damage, and the vibration energy is evenly transmitted through the contact surface simultaneously, thereby improve the overall assembly efficiency.

The application relates to the technical field of welding platforms, and discloses a three-dimensional welding platform with a protection structure, which comprises a machining table, a horizontal moving component is fixedly installed at the front side edge of the machining table, a lifting component is arranged at the top of the horizontal moving component, a deflection component is fixedly installed at the top of the lifting component, a protection plate is fixedly installed at the top of the deflection component, and an adjusting component is fixedly installed at the left end of the deflection component. When welding workpieces at different positions on the top of the machining table, the left hand holds the holding handle, then walks leftward and rightward, the demand for face protection is met, the left hand holds the holding handle again, the pressing switch is pressed by fingers, the output end of the electric push rod is elongated, the mounting plate is driven to move upwards along the guide rod, the holding handle is pushed by the left hand, the rotating shaft rotates in the shaft sleeve, the inclination angle of the protection plate is adjusted, and the purpose of protecting the operator in a large area is achieved.

The present invention discloses a wool top firmly twisting device, comprising a main body, the upper surface of the main body is fixedly connected to the lower surface of the shell, the inner cavity of the shell is provided with an anti-loosening device, and the inner cavity of the shell is slidably connected to the outer surface of the anti-loosening device, and the left end of the upper surface of the main body is provided with a control device, and the present invention relates to the field of wool top twisting technology. The wool top firmly twisting device, through the friction force of the side of the friction part and the twisting strip, promotes the wool top outside the twisting strip to be tightened, increases the firmness, and ensures the friction force of the wool top twisting. The rubber baffle is located on the outer side of the support column. When the support column hits the rubber baffle, the force of the twisting wool top of the friction part is adjusted to a certain extent, and a certain degree of loosening is obtained, avoiding the situation that the closer the twisting wool top is, the greater the force is, and preventing the situation that the twisting force is too large and the situation of over-tightening damage occurs, so as to achieve the purpose of timely control of twisting.

The utility model discloses a roll adjusting device of a roll grinder, which belongs to the technical field of roll grinders and comprises a first electric guide rail and a protective mechanism, the surface of the first electric guide rail is slidably connected with a clamp seat, the protective mechanism comprises a protective cylinder fixedly connected to the top of the clamp seat, and the inner wall of the protective cylinder is rotatably connected with a screw rod. A first servo motor is fixedly connected to the inner wall of the clamp base, an output shaft of the first servo motor is fixedly connected to the bottom end of a lead screw, a placing base is slidably connected to the inner wall of the protective cylinder, and the surface of the lead screw is in threaded connection to the lower end of the inner wall of the placing base. By means of the mode, the surface of the lead screw is enclosed through the protective cylinder, metal chippings generated in the grinding process are prevented from being attached to the surface of the lead screw, abrasion between the lead screw and the containing base is reduced, the installation effect of the roller is guaranteed, friction between the rotating roller and the containing base is reduced through the balls, and it is guaranteed that the roller is smooth in the rotating process.

The utility model relates to the technical field of feeding, in particular to a feeding device for wood moulding processing, which comprises an adjusting component and a feeding component, one side of the adjusting component is connected with the feeding component, and the adjusting component consists of a mounting seat, a vertical rod, a connecting lug plate, a locking screw rod, an adjusting sleeve seat, a cross rod and a connecting seat. The feeding assembly is composed of a first feeding roller, a second feeding roller, a driving box, a third feeding roller, sliding grooves, a connecting frame, a driving motor, connecting strips, damping hydraulic rods, damping springs, outer sleeve bases and sliding strips, the multiple sets of connecting strips are arranged on the two sides of the connecting frame, the sliding grooves are formed in the outer sides of the connecting strips, the sliding strips are connected into the sliding grooves, and the connecting strips are connected into the sliding grooves. A sliding strip is arranged at the upper end of the connecting frame, an outer sleeve seat is arranged outside the sliding strip, a plurality of sets of damping hydraulic rods are connected to the upper end of the connecting frame, damping springs are arranged outside the damping hydraulic rods, a first feeding roller, a second feeding roller and a third feeding roller are connected to the inner side of the connecting strip, and a driving box is connected to the outer side of the connecting strip.

The present invention belongs to the technical field of rock and soil slope engineering, and particularly relates to an expansive soil slope anchor rod based on confining pressure adaptive technology, comprising: an anchor rod body, the tail end of which is fixedly connected with an adaptive deformation device; the adaptive deformation device comprises a deformation assembly and a deformation adaptive driving assembly located in the deformation assembly; the deformation assembly comprises a plurality of deformation parts, the plurality of deformation parts are arranged at equal intervals around the axis of the anchor rod body, two adjacent deformation parts are connected, and the middle of the deformation parts can be moved away from or close to the radial direction of the anchor rod body; the deformation adaptive driving assembly is transmission-connected with the plurality of deformation parts, and the deformation adaptive driving assembly is located at the center of a cavity surrounded by the plurality of deformation parts. Compared with the traditional technology, the deformation assembly and the deformation adaptive driving assembly of the present device ensure that the friction resistance of the anchor rod is maintained within a relatively stable range, so that the problem of damage to the anchor rod caused by soil deformation due to moisture changes in the expansive soil can be solved.

The utility model discloses a pipe lifting device, which relates to the technical field of pipe processing and comprises a pipe cutting table, a saw cutting mechanism capable of cutting pipes is arranged on the upper surface of the pipe cutting table, and a conveying mechanism for conveying the cut pipes is arranged on the side surface of the pipe cutting table. A pipe head lifting mechanism capable of assisting cut pipes in entering the conveying mechanism is arranged between the saw cutting mechanism and the conveying mechanism and comprises two stand columns, a top plate is fixedly installed at the tops of the two stand columns, and two lifting air cylinders are further arranged on the bottom face of the top plate. The bottom surfaces of the two lifting air cylinders are fixedly provided with pipe bearing plates capable of ascending and descending along with the lifting air cylinders, and the upper surfaces of the pipe bearing plates are fixedly provided with nylon carrier rollers used for bearing pipes. And the pipe is easy to fall off.

The utility model provides a safety protection device for a horizontal machining machine tool base, and relates to the technical field of horizontal machining machine tool bases. The horizontal machining machine tool base comprises a base body, a strip-shaped groove is formed in the base body, and the safety protection device comprises two L-shaped plates. Mounting lugs are mounted at the bottoms of the two L-shaped plates, and two-way threaded rods are connected to the two mounting lugs in a penetrating and threaded mode; an anti-slip strip is detachably mounted on one side of the L-shaped plate; a felt is adhered between the two L-shaped plates; a rotating ring is mounted in the center of the outer side of the two-way threaded rod; an L-shaped groove is formed in the L-shaped plate, the L-shaped plate is provided with a hook face hook-and-loop fastener through the L-shaped groove, the device is plugged into the strip-shaped groove, the anti-slip strip is extruded and fixed into the strip-shaped groove by means of friction force between the anti-slip strip and the base body, the strip-shaped groove is covered with the felt, and therefore the phenomenon that in the machining process of a machine tool, the anti-slip strip is prone to falling off is avoided as much as possible. And scattered metal chips are clamped in the strip-shaped grooves which are not used.

The utility model provides a safety type elevator brake which comprises a brake rod, a traction machine, a brake wheel and a magnetic device, brake arms are arranged at the two ends of the magnetic device, telescopic mechanisms are connected to the brake arms in a transmission mode, the telescopic directions of the telescopic mechanisms extend along the axis of the magnetic device, and brake shoes are detachably installed on the telescopic mechanisms; according to the elevator braking device, when an elevator is braked, the telescopic mechanism can apply pressure to the brake shoe to improve the friction force with the brake wheel, so that the friction force between the brake shoe and the brake wheel can meet the elevator braking requirement when the brake shoe and the brake wheel are abraded to a preset degree and an initial gap is large, the service life of the brake shoe and the brake wheel is prolonged, and the service life of the elevator is prolonged. And meanwhile, the safety is improved.

The utility model provides a capsule air-blowing type positioning ring of a sectional type forming machine, which belongs to the technical field of tire production equipment and comprises a positioning ring outer sleeve, an air bag, a positioning ring inner sleeve and a valve, the air bag is fixedly arranged on the inner side surface of the positioning ring outer sleeve, the positioning ring inner sleeve is arranged on the inner side of the air bag, and the valve penetrates through the air bag. The valve is connected to the positioning ring outer sleeve in a threaded mode, a plurality of positioning key strips are arranged on the positioning ring inner sleeve in a penetrating mode, first anti-disengaging rings are fixedly arranged on the sides, facing the air bag, of the positioning key strips, second anti-disengaging rings are fixedly arranged on the sides, away from the air bag, of the positioning key strips, and a plurality of containing grooves are formed in the positioning ring inner sleeve; by arranging the first anti-falling ring, the second anti-falling ring and the storage groove, after the air bag is deflated, the positioning key strip moves towards the inner side of the positioning ring inner sleeve until the second positioning ring on the positioning key strip is embedded into the storage groove, the positioning key strip is prevented from contracting to the central through hole of the positioning ring inner sleeve, and the positioning key strip is prevented from shifting.

The utility model discloses a synchronous speed -regulation's glass -steel traction machine antiskid clamping mechanism, including mounting panel, the symmetrical bottom plate that is equipped with on mounting panel, is equipped with the top plate through the lifting assembly on mounting panel, is equipped with synchronous conveying assembly between two bottom plates, two top plates, the symmetrical limit mechanism that is equipped with in two ends of two top plates, limit mechanism and lifting assembly are matched. The utility model lifting assembly lower supporting plate is fixedly connected with mounting panel through fixed column, can play the guiding and spacing effect in the glass -steel conveying traction process, avoid the deviation of glass -steel, guarantee the accuracy of conveying direction, the upper clamp plate in spacing mechanism is connected with the connecting plate through buffer assembly, and is matched with lower supporting plate, in the glass -steel conveying traction process, can cooperate lifting assembly and carry out the clamping and fixing and spacing of glass -steel, effectively prevent the deviation of glass -steel, guarantee the smooth operation of traction process.

The utility model provides a self-adjusting balance device for lifting a fireproof curtain, which belongs to the field of stage performance equipment and comprises a balance plate, rigging turnbuckles and connecting supports. The connecting support is mounted in the center of the top edge of the fireproof curtain, and the balance plate is connected with the connecting support through a rotating shaft; one end of the rigging turnbuckle is connected with the balance plate through a connecting pin shaft, and the other end is connected with the lifting steel wire rope; the connecting support is further provided with a pair of baffles, and when the balance plate rotates around the rotating shaft to the position where the lower edge of the balance plate makes contact with the baffles, the limiting position is achieved. And the distances between the two connecting pin shaft holes in the balance plate and the rotating shaft hole are equal. The device solves the problems that two lifting steel wire ropes for lifting an existing fireproof curtain are unequal in tensile force and inconsistent in length, so that the fireproof curtain inclines, the abrasion of a guide rail is increased, even the clamping stagnation phenomenon occurs, meanwhile, the abrasion of the steel wire ropes with large stress is increased, and the service life is shortened, ensures that the fireproof curtain does not incline and deviate, and improves the safety of the fireproof curtain. Friction of the guide rail is reduced.

The shaft sleeve detachable system comprises a shaft, a shaft sleeve, two annular sealing pieces and an oil pump, the shaft is provided with a first shaft section, a second shaft section and a shaft shoulder face, the first shaft section and the second shaft section are connected, the shaft shoulder face is located at the connecting position, and the shaft sleeve is provided with oil grooves distributed in the inner circumference in the circumferential direction and oil injection channels communicated with the oil grooves. The two annular sealing pieces are installed between the shaft and the shaft sleeve and located on the two axial sides of the shaft sleeve correspondingly, the oil pump is used for communicating with the oil injection channel, the shaft sleeve detachable system has a first state and a second state, in the first state, the shaft sleeve is in interference fit with the first shaft section and the second shaft section, and in the second state, the shaft is separated from the shaft sleeve; pressure oil provided by the oil pump acts on the shaft shoulder face so that the shaft sleeve detachable system can be switched from the first state to the second state. According to the system, heating is not needed when the shaft sleeve is dismounted, a mechanical dismounting method is not needed, the construction space is small, and the shaft sleeve and the shaft can be repeatedly used.

The utility model discloses a work piece feeding device for bamboo wood component drilling equipment, which comprises a drilling workbench and a feeding mechanism, the feeding mechanism comprises a group of isolation plates, and corresponding baffle plates are respectively and fixedly connected between the upper parts of two sides of the isolation plates; the material separating assembly comprises a set of S-shaped blocking and pushing pieces which are installed on the lower portion of the baffle in a swinging mode, and the S-shaped blocking and pushing pieces are driven by a set of synchronous pushing air cylinders respectively; the separation discharging assembly comprises a set of conveying belts, and the conveying belts are installed between the corresponding tensioning rollers in a tensioning mode; the middles of the tensioning rollers are arranged in a concave mode, the middles of the tensioning rollers located on the lower portion are fixedly connected with corresponding cylindrical magnet pieces in a sleeved mode, and the middles of the conveying belts are movably provided with corresponding bearing plates. And the material pushing stop block is used for pushing the bamboo and wood components to the drilling station of the drilling workbench one by one. According to the feeding device, excessive friction of the bamboo components in the feeding process can be avoided, and feeding smoothness can be effectively guaranteed.

The utility model relates to an anti-falling device, in particular to an elevator maintenance anti-falling device. The anti-falling device for elevator maintenance comprises a rod body, sliding rods, a plug pin and a limiting block, the sliding rods are connected to the left side and the right side of the rod body in a sliding mode, inserting holes which are evenly distributed at intervals are formed in the sliding rods, the plug pin is connected to the rod body in a sliding mode, and the plug pin is connected with one inserting hole in a clamped mode. One end, far away from the rod body, of the sliding rod is fixedly connected with a limiting block of a hollow structure, the screw is rotationally connected in the limiting block, the push plate is in threaded connection with the outside of the screw, and the suckers distributed left and right are connected to the front side of the push plate. By arranging the screw rod, the push plate, the suction cup, the air pump and the like, the air pump is started, the air pump moves to suck air in the suction cup into the air suction pipe and the telescopic pipe in sequence, then negative pressure is generated in the suction cup to be adsorbed to the elevator wall, the rod body is limited in the front-back direction, and the problem that the existing limiting effect is poor is effectively solved.

The invention belongs to the technical field of power accessories, and particularly discloses a line fixing device for a power distribution cabinet, which comprises a shell, a transmission wheel is rotatably mounted in the shell through a shaft, a rotating plate is fixedly connected to one side of the outer wall of the transmission wheel, and yoke plates which are uniformly distributed are fixedly connected to the outer wall of the rotating plate. A linkage ring is fixedly connected to the outer wall of the linkage plate, a second adjusting wheel is fixedly connected to the outer wall of the linkage ring, the second adjusting wheel is inserted and rotationally connected to the outer wall of the shell, a pressing plate is fixedly installed in the shell, and cable holes allowing cables to penetrate through are formed in the upper face and the lower face of the outer wall of the shell. A buffer assembly is arranged on one side of the outer wall of the shell, a cable penetrates through a cable hole in the lower side of the shell, and convenient adjustment of the cable inside and outside the shell is achieved through rotation of a second adjusting wheel and a transmission wheel, so that a user can easily adjust the cable whether the user is inside or outside the power distribution cabinet.

The utility model discloses a building material transportation device for a low-rise building, and relates to the technical field of building material transportation. The device comprises supporting rods, side rods, an L-shaped limiting plate and a bottom plate, fixing plates are jointly fixed to the top ends and the bottom ends of the two supporting rods, the two supporting rods are fixed to the short edges of the faces, close to each other, of the two fixing plates respectively, and a miniature winch is fixed to the top of the fixing plate located at the bottom ends of the supporting rods. A steel wire rope is fixed to the output end of the micro winch, side rods are arranged on the front sides of the two supporting rods and are parallel to each other, an L-shaped limiting plate is fixed to the edges, close to the lower portions, of the front sides of the two side rods, a supporting plate is fixed to the top of the L-shaped limiting plate, and a bottom plate is arranged below a fixing plate at the bottom ends of the supporting rods. By arranging the supporting rods, the side rods, the L-shaped limiting plates and the bottom plate, the problems that when a low-rise building is in a narrow site, a conveying device is inconvenient to arrange, and the conveying device is not good enough in lifting applicability to building materials in different shapes are solved.

The utility model discloses conveying equipment for mineral resource exploitation, which belongs to the technical field of mineral exploitation, and comprises a rack, one side of the rack is provided with an opening and closing mechanism, the top of the rack is provided with two groups of conveying components, the conveying components are arranged on a connecting seat, and the connecting seat is provided with a connecting rod. The two conveying assemblies can be driven to move relative to each other, so that a larger conveying assembly is formed to be suitable for conveying larger objects, the transmission belt and the driving belt can guarantee the synchronism of power transmission, the two conveying assemblies can move oppositely or oppositely through the separating and combining mechanism at the bottom, and when small objects are conveyed, the conveying efficiency is greatly improved. The single conveying assembly can be adopted for conveying, when large objects are conveyed, the two conveying assemblies and the middle wheel can be combined into a larger conveying belt, therefore, the original conveying space is enlarged, and the supporting wheels in the conveying belt can prevent the conveying belt from collapsing.