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76 results about "Protruding tooth" patented technology
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Upper front teeth that protrude beyond normal contact with the lower front teeth are prone to injury, often indicate a poor bite of the back teeth (molars), and may indicate an unevenness in jaw growth. Commonly, protruded upper teeth are associated with a lower jaw that is short in proportion to the upper jaw.
Slope protection assembly with improved structure
ActiveCN223446195UClimate change adaptationExcavationsArchitectural engineeringStructural engineering
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.
Owner:ANHUI GUOJI GENERAL TECH CO LTD
Strain clamp with stable connection
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.
Owner:ZHEJIANG SUNJ ELECTRIC CO LTD
A slurry valve with high sealing durability
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.
Owner:ZHEJIANG HIGH & MIDDLE PRESSURE VALVE FACTORY
An assembly for a turbine wheel
ActiveCN224315233UReduced risk of plastic deformationNot easy to slipPump componentsWind energy generationImpellerTurbine wheel
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.
Owner:ZHENXIN TURBINE MASCH CO LTD
Multifunctional hair iron
ActiveCN224206341Uheating evenlyImprove perm effectCurling-ironsCurling-tongsMechanical engineeringProtruding tooth
Owner:NINGBO YONGDONG ELECTRIC APPLIANCE CO LTD
Method for designing number of convex teeth of air-blowing optical cable and air-blowing optical cable
ActiveCN120611534ADesign optimisation/simulationFibre mechanical structuresMechanical engineeringMaterials science
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.
Owner:JIANGSU ZHONGTIAN TECH CO LTD
A device for preventing reverse rotation of the polished rod in a screw pump.
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.
Owner:PETROCHINA CO LTD
Pulverizer capable of grinding for multiple times
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.
Owner:ZHONGSHAN WEIXIANG CHEM POWDER CO LTD
Comb tooth assembly and hair straightening and curling device
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.
Owner:FOSHAN MOFAN TECH CO LTD
Space-adjustable cloth roll storage rack for garment processing
Owner:JIANGSU SHENGHAI GARMENT TECH CO LTD
Bag type pore plate attenuator for pipeline vibration control
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.
Owner:CHINA UNIV OF PETROLEUM (BEIJING)
Pruning blade with safe cutter teeth and cutter head assembly
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.
Owner:ZHEJIANG HAISHUN ELECTRIC ENTERPRISES LTD
A robotic arm suitable for a da vinci robot for mice
ActiveCN115363809Blarge range of motionavoid touching each otherSurgical manipulatorsSurgical veterinaryPhysical medicine and rehabilitationRobotic arm
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.
Owner:THE SECOND AFFILIATED HOSPITAL ARMY MEDICAL UNIV
Strip-shaped scrap steel grabbing device
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.
Owner:嘉兴陶庄城市矿产资源有限公司
A magnetic hook and loop fastener
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.
Owner:CHONGQING QINGHEYUAN TECHNOLOGY CO LTD
A laboratory safety pig cage
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.
Owner:SUZHOU FENGSHI LAB ANIMAL EQUIP
A toothed drum feeding device and method of use thereof
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.
Owner:厦门工学院
Pipeline pump impeller assembly convenient to install
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.
Owner:WUXI G&Z FLUID EQUIP
Diamond rock plate cutting saw blade
The utility model discloses a diamond rock board cutting saw blade, include: base body, the edge of base body is equipped with cutting part, the front and back of cutting part is equipped with the annular array setting's protruding tooth respectively, and the protruding tooth is diamond shape, and the middle of protruding tooth is equipped with recess, and the recess is diamond shape, and the intersection of adjacent two protruding tooth sets up, the edge of base body annular array multiple sets of heat dissipation hole, and each group heat dissipation hole has at least two heat dissipation holes. The utility model's cutting part and its protruding tooth of front and back are through mould hot pressing sintering integrated molding, and the edge and surface of protruding tooth can promote the cutting of the bite cutting force, promote cutting efficiency, and the reinforcing portion on the base body can promote the stability of base body rotation, and multiple sets of heat dissipation holes on the base body can accelerate the heat dissipation efficiency, to further promote the cutting performance of saw blade.
Owner:JIANGSU BOKEDA TOOLS CO LTD
Integrally-formed convex hull tapping type module and production process thereof
The invention provides an integrally-formed convex hull tapping type module and a production process thereof. Belongs to the technical field of precision metal forming and thread machining. Comprising the following steps that bag pulling treatment is carried out at the target position of a metal plate, a preliminarily-protruding bag is formed through intelligent stamping equipment, and the thickness and hardness data of the plate are synchronously collected; according to plate data collected in real time, back-upsetting process parameters are dynamically adjusted, hole flanging edge defects caused by plate thickness / hardness fluctuation are compensated, and a preliminary convex hull structure with the self-adaptive compensation characteristic is generated; by dynamically adjusting the upsetting parameters, the adaptability to the thickness and hardness fluctuation of different batches of plates is improved, the quality of the flanged hole edge is ensured, and the defective rate caused by material difference is reduced.
Owner:GUANGDONG SHIANTONG IND CO LTD
Bottle protective cap
The utility model discloses a bottle protective cover, in particular to a protective cover for bottles (such as wine bottles, perfume bottles and the like) filled with commodities, which comprises a shell and a locking component arranged in the shell, a containing cavity allowing a bottle neck to be inserted therein is formed in the shell, the locking assembly comprises at least two rotary clamping arm mechanisms, and a convex tooth part is arranged at the end, close to the containing cavity, of each rotary clamping arm mechanism. The rotary clamping arm mechanisms can respectively clamp annular convex parts or annular concave parts of bottle mouths with different sizes or bottle necks with different sizes, which are inserted into the accommodating cavity, through the convex tooth parts, so that the protective cover is in a locked state, and the inserted bottle mouths cannot be pulled out from the accommodating cavity; when the protective cover is in a locked state and is not inserted into the bottle neck, the linear distances from the convex tooth parts to the opposite inner side surfaces of the accommodating cavities are different. By means of the structure, the variation range of the diameter of the bottle cap and the length of the bottle neck suitable for locking is effectively enlarged. An operator can also operate with one hand to install the protective cover in the locked state.
Owner:NINGBO XUNQIANG ELECTRONICS TECH LTD
Open hole packer for fracturing
The open hole packer for fracturing comprises a protruding tooth upper mandrel, a setting pin, a semicircular setting clamp spring, a setting hydraulic cylinder, a sealing ring, an upper outburst prevention ring, a setting rubber barrel, an unsetting pin, a lower outburst prevention ring, a semicircular unsetting sliding block, a sliding block sleeve, a claw barrel, an unsetting rubber barrel, an unsetting rubber barrel baffle ring, a baffle block, a fixed baffle ring, a working lower mandrel and a setting ball. When the packer is set, after a setting ball is put into a tubular column, fluid pressure is increased, fluid enters a setting hydraulic cylinder through a pressure transmission hole, when the pressure in the setting hydraulic cylinder reaches a certain value, a setting pin is cut off, the setting hydraulic cylinder pushes an upper outburst prevention ring to move downwards and extrudes a setting rubber barrel, and the setting rubber barrel is expanded in the radial direction to seal an annular gap to achieve setting; when the packer is unsealed, the fluid pressure is increased to a certain value, the claw cylinder cuts off the unsealing pin, the setting rubber cylinder is axially and downwards recovered under the action of the restoring force, and the packer is unsealed.
Owner:SOUTHWEST PETROLEUM UNIV
Auxiliary mounting structure, support and electronic device
This disclosure provides an auxiliary mounting structure, a bracket, and an electronic device, belonging to the field of assembly structures. The auxiliary mounting structure includes a ring body and multiple protruding teeth; the first surface of the ring body has a protrusion near its inner edge; the multiple protruding teeth are located on the first surface of the ring body and are spaced apart along the circumference of the ring body, with the first end of each tooth located at the protrusion and the second end extending towards the outer edge of the ring body. This disclosure improves structural strength and facilitates lightweight and thin design.
Owner:NINGBO GONEO ELECTRIC APPLIANCE CO LTD
A hand tool for snap fasteners
A hand tool for snap fasteners, characterized by: a first arm part, wherein the first end of the first arm part is equipped with a snap fastener holder and the second end transitions into a first handle, a first spacer area is located between the opposing side walls in the middle area of the first arm part, and protruding teeth are arranged on the inside of the first arm part, located between the first end of the first arm part and the middle area;second arm part, wherein the first end of the second arm part is equipped with a push-button main part and the second end transitions into a second handle, the push-button main part is associated with the push-button holder, the middle end of the second arm part is movably insertable into the first space area of the first arm part, wherein the second arm part and the first arm part are arranged crosswise, on the inside of the second arm part there is a toothed slot which is arranged between the first end of the second arm part and the middle area, the toothed slot movably engages with the protruding teeth;Connecting part in which one end of the connecting part is rotatably attached to a first joint point of the first arm part, wherein the first joint point is arranged between the first end of the first arm part and the central area, and the other end of the connecting part is rotatably attached to a second joint point of the second arm part, wherein the second joint point is arranged between the first end of the second arm part and the central area.
Owner:LISHUI PITE TOOLS CO LTD
Slurry valve with high sealing durability
The invention relates to the field of slurry valves, in particular to a slurry valve with high sealing durability, which comprises an upper valve body, a lower valve body, a valve clack, a sealing ring, an upper ring plate and a lower ring plate, and first convex teeth are convexly constructed at opposite positions of a first pressure reducing ring part and a second pressure reducing ring part; second convex teeth are formed in the opposite positions of the upper annular plate and the lower annular plate in a protruding mode, gaps between the tooth groove bottoms of the first convex teeth and the tooth tops of the second convex teeth and gaps between the tooth tops of the first convex teeth and the tooth groove bottoms of the second convex teeth are set as second pressure reducing holes, and the inner diameter of the upper annular plate and the inner diameter of the lower annular plate are connected through a sealing elastic piece. The sealing elastic piece is used for forcing the upper ring plate and the lower ring plate to vertically separate and move; the space defined 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 defined 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. Erosive wear of the sealing surface can be reduced, so that the sealing durability is improved.
Owner:ZHEJIANG HIGH & MIDDLE PRESSURE VALVE FACTORY
Rotating shoelace tightening / loosening buckle
The present invention relates to the field of rotating shoelace buckles, and in particular relates to a rotating shoelace tightening / loosening buckle, comprising a fixed base. A mounting base capable of accommodating a shoelace is provided at an upper end of the fixed base, a shoelace winding device capable of winding and rotating the shoelace is mounted inside of the mounting base, a fixed housing capable of driving the shoelace winding device to rotate is provided on the exterior of the shoelace winding device, and an upper rotating cover capable of rebounding is engaged with an outer side of the fixed housing. The present invention employs multiple tightly combined components including the fixed base, the mounting base, the shoelace take-up device, the fixed housing, and the upper rotating cover, thereby ensuring structural stability and durability. The engagement and meshing design among the components enables smooth rotation and operations for the overall device, not being susceptible to failure or looseness. A meshing connection between a recessed tooth block and a protruding tooth block not only increases the connection strength between the fixed housing and the shoelace winding device, but also improves the smoothness of rotation between the two components.
Owner:SHENZHEN SOUNDGO TECHNOLOGY CO LTD
Mechanical arm and additive and subtractive composite 3D printing equipment
PendingCN121870810Areduce manufacturing costReduce control difficultyJointsArmsRobotic armProtruding tooth
Owner:SHENZHEN TECH UNIV
A gas valve regulating assembly and a gas valve
This utility model relates to a gas valve regulating assembly and a gas valve, including a fixed frame, a valve stem, and a limiting block. The valve stem can drive the limiting block to move circumferentially relative to the fixed frame. The fixed frame is provided with a limiting protrusion extending downward. The limiting block is provided with a number of protruding teeth distributed circumferentially. Adjacent protruding teeth form a limiting recess with an upward opening corresponding to the limiting protrusion. The circumferential movement of the limiting block relative to the fixed frame causes the limiting protrusion and the protruding teeth to slide in cooperation. The limiting protrusion and different limiting recesses are connected vertically to fix the relative position of the limiting block and the fixed frame circumferentially. The cooperation between the limiting protrusion and the limiting recess allows the valve stem to rotate according to a preset amplitude, thereby achieving the effect of precisely adjusting the firepower.
Owner:FOSHAN SHUNDE TELIAN HARDWARE APPLIANCE IND CO LTD
A quick-release and fixation mouse dissection device
ActiveCN224269500UAchieve clampingRealize mesh reinforcementLighting elementsAnimal fetteringPhysical medicine and rehabilitationSurgery
This invention discloses a mouse dissection device for quick assembly and disassembly, comprising a support platform with a dissection table mounted on top, the dissection table having multiple slots; and multiple limb fixation components mounted on the support platform, each limb fixation component including: a strip frame mounted on the support platform, the top of the strip frame having multiple linearly distributed protruding teeth, and a sliding groove on the side of the strip frame; a movable frame slidably connected to the sliding groove; and a slide frame slidably connected to the movable frame, with a connecting rod fixed to one outer wall of the slide frame, and the same strap connected to two connecting rods. This invention, by setting up the slide frame, positioning teeth, and strap, allows the mouse to be placed on the dissection table. Adjusting the position of the movable frame allows the strap to be placed on the outside of the mouse's limb. By turning the knob, the outer cylinder and slide frame move downwards, causing the positioning teeth to move downwards, and the positioning teeth engage with the protruding teeth to achieve a locking mechanism.
Owner:CHIMEDICAL UNIVERSITY
