135 results about "Protruding tooth" patented technology

The invention belongs to the technical field of medical implant prostheses, and particularly relates to a self-stability cervical interbody fusion cage which comprises a fixing plate and a fusion cage body. An adjusting rod is mounted in the fusion cage main body, a mounting groove is formed in the fusion cage main body, the adjusting rod and a sliding block are mounted in the mounting groove, a check block is mounted on the adjusting rod, and the check block drives the sliding block to move; an adjusting groove is formed in the fusion cage body, a connecting plate and a protruding tooth rod are installed in the adjusting groove, a contact plate is installed on the connecting plate, and a top block and a sliding block are connected through a pull rope; when the interbody fusion cage is implanted, the protruding toothed rod retracts, the surface of the protruding toothed rod is kept flat and smooth, implantation of the interbody fusion cage is facilitated, extrusion, friction and scratching are avoided, then after implantation, the protruding toothed rod stretches out, friction force between the interbody fusion cage and the vertebral body end plate is increased, and it is guaranteed that the fixing effect and stability of the interbody fusion cage are good; the treatment effect is improved.

The invention discloses a hinge with a self-closing function, and belongs to the field of hinges, the hinge comprises a door support, a cabinet support, four connecting pieces and a self-closing assembly, a driving piece is rotatably mounted on a second connecting piece, a guiding piece is movably mounted on a fourth connecting piece, a guiding column is located in a guiding groove, and two ends of an elastic piece are connected with the fourth connecting piece and the guiding piece respectively; when the hinge is in an open state, the guide column of the second connecting piece abuts against the end of the guide groove so that the elastic piece can be kept in a stretching state. When the hinge moves from the open state to the critical state, the driving piece abuts against the abutting face to drive the guiding piece to move relative to the fourth connecting piece till the driving piece abuts against the protruding teeth. When the hinge moves from a critical state to a closed state, the driving piece crosses the convex teeth to fall into the groove, the elastic force of the elastic piece drives the hinge with the self-closing function to move to the closed state, the abutting face, the groove, the convex teeth and the guide groove are integrated on one part of the guide piece, the number of hinge parts is small, the overall structure is simple, and the size is small.

The slope protection assembly with the improved structure comprises a building block and a clamping block, the building block is provided with a vertical plate and a step, the vertical plate and the step are perpendicular to each other and form an L shape, the step is provided with an outer edge rod and a transverse rod, and convex teeth are symmetrically arranged at the two ends of the outer edge rod and / or the two ends of the vertical plate. The convex teeth are only located on the front wall face and / or the rear wall face of the outer side rod / vertical plate, the outer side rod of the upper-layer building block is pressed on the vertical plate of the lower-layer building block during stacking and slope protection, the building block is provided with a left end face and a right end face, the convex teeth are of a half-edge lock tooth structure, and every two adjacent convex teeth of every two left-right adjacent building blocks on the same layer can be combined into a complete lock tooth. The lock teeth are dovetail teeth or trapezoidal teeth or rectangular teeth or special-shaped teeth, the left end face and the right end face of the building block are combination faces of the convex teeth, and the clamping blocks are provided with lock grooves matched with the lock teeth. According to the slope protection assembly, the left building block and the right building block are aligned and placed in a non-interval mode, meanwhile, the installation mode of the clamping blocks is changed, and the laying operation of the building blocks is greatly simplified.

The invention discloses a self-closing hinge and belongs to the field of hinges, the self-closing hinge comprises a door support, a cabinet support, four connecting pieces and a self-closing assembly, a driving piece is rotatably mounted on the first connecting piece, a guiding piece is movably mounted on the first connecting piece, convex teeth of the guiding piece are located between an abutting face and a groove, and a guiding column of the first connecting piece is located in a guiding groove; two ends of the elastic piece are respectively connected with the second connecting piece and the guide piece, and when the hinge is in an open state, the guide column abuts against the end part of the guide groove to keep the elastic piece in a stretching state; when the hinge moves from the open state to the critical state, the driving piece abuts against the abutting face to drive the guiding piece to move relative to the fourth connecting piece till the driving piece abuts against the protruding teeth. When the hinge moves from a critical state to a closed state, the driving piece crosses the convex teeth to fall into the groove, the hinge is driven by the elastic force of the elastic piece to move to the closed state, the abutting face, the groove, the convex teeth and the guide groove are integrated on one part of the guide piece, the number of hinge parts is small, the overall structure is simple, and the size is small.

The utility model provides a film capacitor glue pouring shaping and pin positioning work fixture, which is characterized by comprising a base, a filler strip and a tooth-shaped positioning clamping plate, the tooth-shaped positioning clamping plate, the filler strip and the base are sequentially arranged from top to bottom, the base is provided with a plurality of cavities, the sizes of the cavities are matched with the sizes of product shells, and the tooth-shaped positioning clamping plate and the filler strip are matched with each other. The product shell is loaded with a product and then is arranged in the base cavity; the appearance size of the tooth-shaped positioning clamping plate is consistent with that of the base, the middle of the tooth-shaped positioning clamping plate is an empty slot, a plurality of convex teeth are vertically symmetrical in the empty slot and are provided with cavities matched with sheet pins to insert, and the neutral lines of the convex teeth are consistent with the neutral line of the cavity of the base; the base cavity is through up and down, so that the product is easy to demould after the glue pouring material is cured; the hollowed-out parts of the tooth-shaped positioning clamping plate are more, so that the glue filling operation is easy to complete; a cavity of a base of the product shell is matched, so that deformation of the shell in the high-temperature drying process is prevented; the tooth-shaped positioning clamping plate fixes the sheet pins, so that the pin positioning problem of the capacitor is solved, and deviation of the pins in the transfer process after glue pouring is prevented.

The invention belongs to the technical field of medical instruments, and particularly relates to a scissor type interbody fusion cage which comprises a base and an upper supporting plate, the base is connected with the upper supporting plate through a scissor type jacking mechanism, and protruding teeth are arranged on the base and the upper supporting plate; the shear type jacking mechanism comprises a jacking block, a shaft rod, an arched top plate, a movable block and a push rod; a movable block is installed on the bottom face in the base, and the arched top plate is located between the movable block and the inner wall of the base. The upper end of the arched top plate is connected with the upper supporting plate; the fusion cage is simple in structure, the arched top plate and the movable block are combined into a relatively flat scissor type structure, the size of the fusion cage is further reduced, the fusion cage can be conveniently implanted and used, the thickness can be conveniently adjusted, meanwhile, the freedom degree of movable parts in the fusion cage is reduced and limited, and the stability of the fusion cage after the thickness is adjusted is guaranteed.

The invention belongs to the technical field of tunnel monitoring devices, and particularly relates to a tunnel deformation monitoring device which comprises an arched supporting device, a movable monitoring device and an anchor rod device. The arched supporting device is composed of an outer ring and an inner ring, and an adjusting groove is reserved between the outer ring and the inner ring. The outer side ring wall of the outer ring is provided with a pulley groove which is concave inwards, the outer side ring wall of the inner ring and the inner side ring wall of the outer ring are both provided with gear grooves, and the gear groove of the inner ring is internally provided with uniform tooth edges which are convex outwards; the anchor rod devices are uniformly distributed along the top of the rear side wall of the outer ring; according to the scheme, more comprehensive data is obtained in a dynamic and static combined mode, and the method is more flexible. The movable monitoring device can move on the arched supporting device and flexibly monitor different positions; the static device is stably installed and continuously provides basic data, dynamic and static monitoring complementation is achieved, monitoring flexibility and accuracy are improved, and tunnel deformation can be found more timely and comprehensively.

The utility model discloses a strain clamp with stable connection, which comprises a clamp body, two inner sides of the clamp body are provided with clamping pieces, the clamping pieces are provided with pushing blocks, the pushing blocks are fixedly connected with the clamp body through screws, the clamping pieces are provided with threading holes for accommodating wire groups, and the threading holes are connected with the clamping pieces through screws. The wire clamp body is provided with a plurality of wire penetrating holes, the wire penetrating holes are provided with a plurality of clamping plates at equal intervals from left to right, the inner walls of the clamping plates are provided with a plurality of tooth parts protruding at equal intervals, and springs are arranged in the clamping pieces and act on the two ends of the clamping plates so that the clamping plates can move towards the middle of the wire clamp body. The tooth part is embedded into the outer wall of the wire group, so that the friction force is enhanced; the clamping force of the clamping plate is dynamically adjusted by pushing the clamping plate through the spring according to the real-time change of the diameter of the wire set, so that the tooth part is always kept in close contact with the outer wall of the wire set, the phenomena of connection loosening and loosening are effectively prevented, and the connection stability of the wire clamp body and the clamping plate is further improved through the screw.

The utility model relates to a juicing assembly which comprises an extrusion cylinder, a juicing cavity provided with a screw rod, and a continuous first limiting part formed at the upper end part of the extrusion cylinder along the circumferential direction; the pressing plate is arranged above the extrusion cylinder and rotationally connected with the upper end face of the screw rod, and a continuous second limiting part is formed at the lower end of the pressing plate in the circumferential direction; wherein one of the first limiting part and the second limiting part is provided with a plurality of convex teeth, the other one is provided with a plurality of tooth grooves, and the convex teeth are matched with the corresponding tooth grooves in an inserted mode. According to the technical scheme of the utility model, a plurality of mounting alignment points are arranged on the material in the circumferential direction, so that the mounting of the pressing plate and the extrusion cylinder has higher fault tolerance, the mounting difficulty is further greatly reduced, and the mounting efficiency is also greatly improved; and secondly, the first limiting part and the second limiting part are matched in an inserted mode, the extrusion cylinder is installed on the pressing plate, the circumferential limiting effect on the pressing plate can be achieved, and the situation that the pressing plate shakes or displaces is avoided.

The application relates to a slurry valve with high sealing durability, belonging to the slurry valve field, which comprises an upper valve body, a lower valve body, a valve flap, a sealing ring, an upper ring plate and a lower ring plate, the relative positions of a first pressure reduction ring part and a second pressure reduction ring part are protrusively provided with first protruding teeth; the opposite positions of the upper ring plate and the lower ring plate are protrusively provided with second protruding teeth, the gap between the tooth groove bottom of the first protruding teeth and the tooth top of the second protruding teeth and the gap between the tooth top of the first protruding teeth and the tooth groove bottom of the second protruding teeth are set as second pressure reduction holes, the inner diameters of the upper ring plate and the lower ring plate are connected through a sealing elastic piece, the sealing elastic piece is used for forcing the vertical separation movement of the upper ring plate and the lower ring plate; the space surrounded by the groove wall of the expansion groove and the inner wall of the sealing elastic piece is set as a first pressure reduction space, and the space surrounded by the sealing elastic piece, the sealing ring, the first connecting ring part and the second pressure reduction ring part is set as a second pressure reduction space. The application can reduce the erosion and wear of the sealing surface, so as to improve the sealing durability.

The utility model relates to fan transmission system technical field, and disclose a kind of assembly impeller, including impeller and main shaft, the detachable connection between the impeller and main shaft, at least two symmetrical distribution's protruding tooth is processed in the main shaft end face;The recess matched with the protruding tooth is opened in the impeller body end face, and torque is transferred by the side surface contact of the protruding tooth and recess;The utility model is matched by protruding tooth and recess, and contact area is big, can effectively disperse torque, reduce local stress concentration;Symmetrical distribution's protruding tooth makes stress more balanced, avoids the local failure caused by structural deviation.

The invention provides a method for designing the number of convex teeth of an air-blowing optical cable, the air-blowing optical cable comprises a cable core and an outer sheath, the outer sheath comprises a sheath body and a plurality of convex teeth surrounding the sheath body and arranged in an array, and the air-blowing optical cable is laid in an air-blowing pipeline. According to the distance from the axis of the air-blowing optical cable to the end parts of the convex teeth, the distance from the axis of the air-blowing optical cable to the root parts of the convex teeth, the radius of the air-blowing pipeline, the difference value between the convex tooth farthest in contact with the air-blowing pipeline and the convex tooth of which the middle part is in contact with the air-blowing pipeline, and the distance from the convex tooth farthest in contact with the air-blowing pipeline to the air-blowing pipeline along the contact direction, the air-blowing pipeline is determined; and calculating the number range of the convex teeth according to the curvature radius of the convex teeth and the maximum half-width of contact between the convex teeth of which the middle parts are in contact with the air-blowing pipeline and the air-blowing pipeline. According to the method for designing the number of the convex teeth of the air-blowing optical cable and the air-blowing optical cable, the range of the number of the convex teeth can be obtained through calculation, the test verification step can be omitted, the test cost is saved, the verification process is omitted, and the production period is shortened.

This invention provides a device for preventing reverse rotation of the guide rod in a screw pump. The device includes a main body, a toothed block, and a limiting post. The main body has a toothed block groove and a fastening hole penetrating the main body. The toothed block is shaped to match the toothed block groove and is detachably mounted in the groove. The toothed block has a groove extending along its axis for receiving the guide rod, and the groove has protruding teeth facing the hollow area of ​​the groove. The protruding teeth include strip-shaped teeth extending parallel to the axis. The limiting post is mounted in the fastening hole and extends at least a predetermined length in a direction perpendicular to the axis. This predetermined length ensures that the limiting post can abut against a base for supporting the drive device when the device is mounted on the guide rod. The device for preventing reverse rotation of the guide rod in a screw pump provided by this invention has many advantages, including simple structure, low cost, and high reliability.

The utility model discloses a grinder capable of grinding for multiple times, which comprises a rack with a grinding area, the upper end of the rack is connected with a hopper assembly, the hopper assembly comprises a hopper body connected to the upper end of the rack, the hopper body is provided with a feeding space capable of being communicated with the grinding area of the rack, and the feeding space is provided with a feeding hole. The hopper body is connected with a cover body capable of rotating relative to the hopper body, the cover body is provided with convex teeth capable of extruding materials in the material feeding space, the rack is connected with a crushing cutter group penetrating through the crushing area, and the rack is provided with a grinding area below the crushing area. A grinding assembly capable of penetrating through the grinding area is arranged on the rack in a penetrating mode. The utility model aims to overcome the problems in the prior art and provides the crusher capable of grinding for multiple times, which can prevent materials in the hopper from being stuck.

The comb tooth assembly comprises a comb cover and comb teeth, the comb teeth are provided with a plurality of convex teeth which are arranged in an arrayed mode, a wavy groove in a wavy trend is formed between every two adjacent convex teeth, the contact area or the heating area of the comb tooth assembly and hair is increased, and the hair straightening and curling effect is improved. The comb cover is provided with a plurality of tooth covers which are arranged in an arrayed mode, the tops of the tooth covers are provided with the protruding points, the protruding points are arranged in a gradually-changing-small mode, the protruding points are beneficial to insertion of hair and separation of the hair, the hair is promoted to enter the wave grooves more smoothly, and operation is smoother.

The invention discloses a bag-type pore plate attenuator for pipeline vibration control, which comprises a pore plate, a bag-type hole plate, a bag-type hole plate, a bag-type hole plate, a bag-type hole plate and a bag-type hole plate, the hole plate is sleeved with the fixing sleeve piece, a plurality of protruding parts are formed on the inner side of the fixing sleeve piece in the circumferential direction, and the protruding parts correspond to the protruding tooth parts of the hole plate one to one and make close contact with the protruding tooth parts so that a plurality of independent overflowing holes can be formed between the protruding parts and the protruding tooth parts; an air injection hole is formed in the fixing sleeve piece, meanwhile, an air channel penetrating in the circumferential direction is formed in each protruding part of the fixing sleeve piece, and the air injection hole is communicated with one air channel. And the flexible diaphragm is pressed between the convex tooth part of the pore plate and the convex parts of the fixed sleeve piece along the circumferential direction, a closed air bag is formed at each overflowing hole, and each air bag is communicated with the air passages on the two adjacent convex parts of the fixed sleeve piece, so that air flow can circulate in each air bag. The throttling and pressure reducing effects of the pore plate and the energy absorbing and buffering effects of the air bag are combined, the pressure intensity of the air cavity is adjusted through the air injection hole, and active control over pulsation is achieved.

The utility model relates to a trimming blade with safe cutter teeth and a cutter head assembly, which are characterized in that each cutter tooth is respectively provided with a tooth surface contacted with skin and a cutting surface matched with cutting, protective teeth with passivated edges are formed at the tooth tip end parts of at least part of the cutter teeth, and the protective teeth protrude out of the tooth surfaces and / or the cutting surfaces of the cutter teeth; the outer end face, located in the extending direction of the cutter teeth, of each protective tooth is provided with a relieving tooth with the passivated edge, and the length and width of each relieving tooth are smaller than those of each protective tooth, so that the sectional area of each relieving tooth in the direction perpendicular to the cutting face is smaller than that of each protective tooth. The trimming blade has the advantages that the protective teeth protruding relatively are arranged at the tooth tips of the cutter teeth, so that the skin is prevented from being punctured or scratched, and the use safety of the trimming blade is improved. Secondly, the shovel teeth are arranged on the protective teeth in the extending direction of the cutter teeth, when the protective teeth slide along the skin surface, the shovel teeth with the small sectional area can pick up or shovel the hair tightly attached to the skin surface, and the hair feeding benefit of the hair and the hair trimming effect of the trimming blade are effectively improved.

This invention discloses a robotic arm for the da Vinci robot suitable for mice, comprising a bedside robotic arm body with several surgical robotic arms mounted on it. An extension arm is mounted on the outermost surgical robotic arm, which includes an arc-shaped arm and a movable sleeve. The arc-shaped arm has several protruding teeth, and a boss is located on the outer side of the movable sleeve. A connecting seat is mounted on the boss, and a worm gear is rotatably connected inside the movable sleeve, meshing with the protruding teeth. In this invention, the extension arm provides a wider range of motion for the surgical robotic arm, allowing the instrument arm to move around to the front of the instruments of other surgical robotic arms when holding surgical instruments. This assists in the surgical procedure while preventing multiple surgical instruments from colliding within the confined space inside the mouse.

Disclosed are apparatuses and techniques for distalizing, mesializing and / or expanding teeth in the upper or lower dental arch of a patient's mouth to make room for crowded or protruded teeth located in the anterior arch region to distally / mesially and / or laterally shift into. In some aspects, an apparatus includes a body; a first arm coupled to an adjustment mechanism of the body and attachable to a molar; a second arm coupled to the apparatus body and attachable to a non-molar tooth; and an anchorage device attachable to a bone in the mouth, which the first arm is configured to transfer a force onto the molar when the adjustment mechanism is actuated to cause movement of the molar in the dental arch, and which the anchorage device is operable to positionally stabilize the body and the second arm to prevent movement of the non-molar tooth in the dental arch.

The utility model relates to the field of strip-shaped waste steel grabbing, in particular to a strip-shaped waste steel grabbing device which comprises a translation assembly, a lifting assembly, a base, a first pneumatic clamping jaw assembly and a second pneumatic clamping jaw assembly. The lifting assembly is arranged on the translation assembly through a first connecting plate, the base is arranged on the lifting assembly through a second connecting plate, the second pneumatic clamping jaw assemblies are symmetrically arranged at the lower end of the base and located between the first pneumatic clamping jaw assemblies, and each first pneumatic clamping jaw assembly comprises a vertical clamping plate and a first air cylinder. The first pneumatic clamping jaw assembly comprises two sets of vertical clamping plates and a first air cylinder, the first air cylinder drives the two sets of vertical clamping plates to move synchronously, the second pneumatic clamping jaw assembly comprises arc profiling clamping plates and a second air cylinder, the two sets of arc profiling clamping plates are driven by the second air cylinder to move synchronously, first stepped protruding teeth are arranged on the inner sides of the arc profiling clamping plates, and second stepped protruding teeth matched with the first stepped protruding teeth are arranged on the inner sides of the other set of arc profiling clamping plates. And the stepped convex teeth II and the stepped convex teeth I can be inserted into each other.

The present application discloses a method, device and equipment for simulation matching and digital coloring detection of arc end teeth. The method includes the following steps: S1. Using a three-dimensional coordinate measuring machine as a detection data acquisition device, using the three-dimensional simulation probe equipped with the three-dimensional coordinate measuring machine to automatically scan and collect the contour of the arc end teeth, obtain the tooth surface contour data points, and then calculate the geometric parameters of the arc end teeth; S2. Using the standard processing parameters of the arc end teeth to perform virtual modeling, virtually color the tooth surface, simulate the manual visual coloring method, and partition the tooth surface meshing quality; S3. Separately collect the tooth surface data of the concave teeth and convex teeth, perform matching simulation calculations under the same meshing reference conditions, and find the best fitting tooth pair. The present application realizes the digital detection of arc end teeth. After the convex teeth and concave teeth are measured, the best meshing tooth pair can be automatically calculated, which greatly shortens the detection time and lays the foundation for the digital assembly of arc end tooth parts.

The utility model provides a servo motor stator coil framework mounting structure, and belongs to the technical field of machinery. The problem that an existing framework is inconvenient to install is solved. The servo motor stator coil framework installation structure comprises a yoke portion iron core and a tooth portion iron core which are both in a circular ring shape, the tooth portion iron core comprises a circle of arc-shaped protruding teeth, every two adjacent protruding teeth are connected through an arc strip, the outer side wall of each protruding tooth is fixedly connected with the inner side wall of the yoke portion iron core in a tight contact mode, a framework is a plastic integrated piece, and the outer side wall of each protruding tooth is fixedly connected with the inner side wall of the yoke portion iron core. The framework comprises a long-strip-shaped main body, and the length of the main body extends in the axial direction of the tooth iron core. An outer baffle ring and an inner baffle ring are integrally formed on the outer wall of the main body, the outer baffle ring and the inner baffle ring are arranged in parallel in the thickness direction of the main body, and an annular winding groove is formed among the outer baffle ring, the inner baffle ring and the outer wall of the main body; clamping grooves matched with the protruding teeth are formed in the main body in the thickness direction of the main body in a penetrating mode, one protruding tooth is clamped into the clamping groove, and the inner baffle rings are pressed on the two corresponding arc strips. The framework is convenient to install.

The utility model relates to a magnetic magic paste, including first magic paste and second magic paste, first magic paste is first flexible magnetic attraction spare, second magic paste is second flexible magnetic attraction spare that can with first magic paste magnetic attraction and separate, first magic paste includes the first magic paste body that is provided with first side face and a plurality of first teeth that protrude to first side face, a plurality of first teeth groove are formed between a plurality of first teeth, second magic paste includes the second magic paste body that is provided with second side face and a plurality of second teeth that protrude to second side face, a plurality of second teeth groove are formed between a plurality of second teeth, when first magic paste and second magic paste magnetic attraction combine, first side face and second side face are opposite, a plurality of first teeth and a plurality of second teeth groove cooperate, a plurality of second teeth and a plurality of second teeth groove cooperate, the utility model has the characteristics of more durable, more easily maintain, more skin and more quiet.

The utility model relates to the technical field of processing molds, and in particular to a trimming mold for hollow convex tooth forgings, comprising a lower mold and an upper mold located above the lower mold, a translation component is installed on the lower side of the upper mold, a cutter is detachably connected to the translation component, a rotation component is installed in the middle of the lower mold, a positioning module is detachably connected to the rotation component, so that the positioning module performs rotational movement, during the process of the upper mold and the lower mold being molded together, the cutter can cut the convex teeth of the forgings, after the cutter is replaced, convex teeth of forgings of different sizes can be cut, the cut waste will fall into a guide tube and slide out, and the waste can be conveniently collected, after the cutting action is completed, the forging is rotated at a certain angle, so that the cutter can face the next convex tooth to be cut, thereby realizing continuous trimming, and having a high degree of automation, on the other hand, the position of the cutter is adjustable, and can be suitable for cutting forgings of different diameters, and has good versatility.

This utility model discloses a safety pig cage for laboratory use, comprising: a base frame with several support plates spaced apart on it; a pedal structure including several mesh panels, each mesh panel having several protruding teeth spaced apart on its side, the protruding teeth on opposite sides of adjacent mesh panels being staggered and interlocking, and support plates inserted into slots at the bottom of the protruding teeth; a fence positioned around the base frame, with entrance and exit gates on it; a feed trough assembled on the fence; and a fixed partition positioned inside the fence, dividing the space formed by the fence into several parts. This utility model can solve the problems of insufficient assembly strength and inter-plate correlation in existing pig cages, which easily lead to the plates warping under localized pressure, thus affecting the safety and service life of the pig cage.

This invention discloses a toothed roller feeder and its usage method, relating to the field of material conveying equipment technology. The toothed roller feeder includes a frame, a toothed roller, a guiding assembly, and a first driving component. The toothed roller includes a cylindrical body and several protruding teeth fixed to its outer surface. The guiding assembly is connected to the frame and includes a roller cover and a guide plate, the guide plate being used to guide the material. The first driving component is drively connected to the toothed roller. In use, the first driving component drives the toothed roller to rotate. Part of the material is embedded in the gaps between adjacent protruding teeth, and part is attached to the outside of the gaps. The material moves with the rotation of the toothed roller, thus being thrown along a preset trajectory to the conveyor belt at the bottom of the frame to complete the feeding. This invention replaces the traditional feeding structure with a toothed roller, eliminating components such as belts and idlers, simplifying the structure, reducing cost and energy consumption, and simplifying maintenance. It effectively solves the problems of complex structure, high cost, and cumbersome maintenance of existing feeding equipment.

The utility model provides a latch type electrode cap dismounting device with a brake, which is characterized by comprising a clamping jaw mechanism and a brake mechanism, the clamping jaw mechanism comprises a rotating seat, a cap dismounting gear and positioning pins, the rotating seat is provided with a through hole, the rotating seat surrounds the through hole, a plurality of limiting bosses are evenly distributed on the rotating seat, the positioning pins are rotatably arranged between every two adjacent limiting bosses, the positioning pins are sleeved with clamping jaw pieces, the rotating seat is rotatably sleeved with the cap dismounting gear, and the cap dismounting gear is sleeved with the cap dismounting gear. The clamping jaw piece is provided with a clamping section capable of clamping an electrode cap, the clamping jaw piece is further provided with protruding teeth, a plurality of sections of inner grooves are formed in the inner wall of the cap dismounting gear at intervals, the protruding teeth are meshed with the inner grooves, the cap dismounting structure of gear meshing is adopted, torsion is large, synchronism is good, cap dismounting does not slip, and the electrode cap can be stably clamped. The conditions that the cap is unstably unloaded and cannot be unloaded are avoided, and the condition that the electrode cap stays on the clamping jaw mechanism after being unloaded is avoided.

The utility model relates to the technical field of pipeline pump equipment, and provides a pipeline pump impeller assembly convenient to install, which comprises an impeller, an installation ring and a main shaft which are concentrically arranged, the impeller is further provided with a connecting column and a square prismatic table, and convex teeth arranged on the periphery of the main shaft are clamped in the installation ring to enable the whole main shaft to be matched with the connecting column in an inserting mode. And the square groove on the inner wall of the main shaft is spliced and matched with the square prismatic table. The protruding teeth and the installation ring are matched in an embedded mode to form a whole, then the square grooves in the main shaft are matched with the square prismatic table to form inserted connection matching, one-by-one assembling is not needed any more, and therefore the tedious one-by-one assembling process is omitted, and the installation difficulty is reduced.