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722 results about "Hinge point" patented technology
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Integrated bracket assembly with head stop for overhead doors
ActiveUS12480345B1Door/window protective devicesWing suspension devicesStructural engineeringMechanical engineering
A bracket assembly for overhead roll-up doors includes a bracket body, and a head stop extending from the bracket body. The head stop is configured to limit travel of a roll-up door. The head stop includes perforated sections that create a hinge line in the material, allowing bending or rotation relative to the bracket body. The perforated sections include small, precisely spaced holes enabling the head stop to bend or fold into position. The bracket body and head stop form a gap at their intersection, creating a natural hinge point for bending the head stop. The head stop includes punched holes for attaching to vertical guides and additional head stops. The bracket body includes a bracket opening to receive an axle, a bracket stop cap, a tensioning drive, and guide tabs. The bracket body integrating the head stop reduces installation complexity and improves reliability compared to traditional separate component configurations.
Owner:CLTC LLC
Auxiliary device for abduction of shoulder joint
PendingCN121845821ARestraining devicesFracturePhysical medicine and rehabilitationApparatus instruments
The invention relates to the field of medical instruments, in particular to an abduction assisting device for shoulder joints, which comprises a support, a support plate for bearing arms is hinged to the top of the support, and a driving mechanism, an adjusting mechanism, a fitting mechanism, a support mechanism and a locking mechanism are arranged on the support; the driving mechanism is used for driving the adjusting mechanism, the laminating mechanism and the supporting mechanism to operate synchronously; the adjusting mechanism is used for driving the supporting plate to rotate around the hinge point so as to adjust the abduction angle. The attaching mechanism comprises an air bag fixedly connected to the supporting plate, and the attaching mechanism is used for synchronously inflating or deflating when the angle is adjusted by the adjusting mechanism so as to be attached to the arm; the supporting mechanism is used for synchronously providing or releasing additional supporting force for the supporting plate when the adjusting mechanism adjusts the angle; the locking mechanism is used for locking the adjusting mechanism after angle adjustment is completed. The use process is simplified, the operation threshold is lowered, the rehabilitation preparation time can be saved, and the clinical use efficiency is improved.
Owner:THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV
Roller welding device
ActiveCN223382844UWelding/cutting auxillary devicesAuxillary welding devicesAgricultural engineeringStructural engineering
The utility model belongs to the technical field of agricultural machinery assembly auxiliary equipment, and particularly relates to a roller welding device which comprises a machine frame and a middle frame, the middle frame is installed on the machine frame in a sliding mode, an upper layer frame is hinged to the middle frame, at least two sets of clamping units are arranged on the upper layer frame, and the clamping units are connected with the middle frame. The clamping unit comprises clamping mechanisms which are oppositely arranged, and the clamping mechanisms jointly clamp the roller ring. The middle frame is installed on the machine frame in a sliding mode, translation carrying before and after roller welding is achieved, the upper-layer frame is installed on the middle frame in a hinged mode, unloading after roller welding is achieved through overturning of the upper-layer frame around the hinged point, manual carrying is not needed, and the labor intensity of workers is greatly reduced. The roller ring is clamped during welding through the oppositely-arranged clamping mechanisms, the stability of the roller ring during welding is guaranteed, and therefore the welding quality is guaranteed.
Owner:LOVOL HEAVY IND CO LTD
Lifting type connection table
The utility model discloses a lifting type connection table which comprises a table body, a lifting mechanism and two connection assemblies arranged on the table body. Wherein one connection assembly is fixedly installed on the table body, the other connection assembly is hinged to the table body, the lifting mechanism is installed on the table body, and the output end of the lifting mechanism is connected with the connection assembly hinged to the table body and can drive the connection assembly to rotate with the hinge point as the center. According to the utility model, through the lifting mechanism and the lifting of one connection assembly, the connection requirements of different heights and angles are met; automatic lifting is achieved through an air cylinder or hydraulic cylinder driving mode, manual intervention is reduced, and the operation efficiency is improved. The distance adjusting assembly is adopted in the connection assembly, accurate adjustment is achieved in a ball screw motor mode, and the conveying requirements of different sizes are met.
Owner:HUAYAN ELECTRONIC TECH (XUZHOU) CO LTD
Pull rod locking structure on folding shopping cart
The utility model relates to a pull rod locking structure on a folding shopping cart. The pull rod locking structure comprises a shopping cart box body and a pull rod assembly arranged on a shopping cart body. A rear box plate of the shopping cart box body is provided with a pull rod groove. The pull rod assembly is hinged to the lower portion of the pull rod groove. A locking assembly is arranged on the pull rod assembly, and a locking seat is arranged in the pull rod groove; when the pull rod assembly rotates along the hinge point to be embedded into the pull rod groove, the output end of the locking assembly is clamped into the locking seat, and the pull rod assembly is limited in the pull rod groove. The locking device is characterized in that the locking assembly comprises a buckle plate arranged on the pull rod assembly in a longitudinal moving mode, a spring bolt fixed to the buckle plate and an elastic component used for driving the buckle plate and the spring bolt to stretch out and reset; when the buckle plate longitudinally moves relative to the pull rod assembly, the lock tongue can be driven to advance and retreat relative to the locking base, and clamping locking or separation unlocking of the lock tongue and the locking base is achieved. The scheme has the advantages of simplified structure, convenience in operation and high locking stability.
Owner:HANGZHOU R&D DESIGN CO LTD
High-load-bearing and high-safety out-opening window built-in hinge and method for installing window sash
This invention discloses a built-in hinge for a high-load-bearing, high-safety outward-opening window and a method for installing the window sash. The built-in hinge includes a slide rail, a slider, a long rod, a middle rod, a short rod, and a support arm. One end of the long rod is hinged to the slide rail, and one end of the middle rod and one end of the short rod are slidably connected to the slide rail. The middle rod and the short rod are cross-hinged. The other end of the middle rod is connected to the long rod, and the other ends of the short rod and the long rod are connected to the support arm. The hinge points A and B between the middle rod and the long and short rods, and the hinge points C and D between the support arm and the short and long rods, form a quadrilateral ABCD. The connection point on the support arm that fixes the window sash is eccentrically inward towards the line connecting the hinge points CD. During the opening and closing process of the hinge of this invention, the gap between the frame and sash profiles is reduced from the conventional 7mm or more to 4mm, preventing collision between the window sash profile and the window frame profile. This shortens the distance between the two profiles, improving the aesthetics of the window while also enhancing the overall thermal insulation, sealing, and safety of the window.
Owner:ZHONGSHAN GUANZHE HARDWARE CO LTD
Tensioning device, air conditioner compressor transmission system and engineering machinery
The utility model discloses a tensioning device, an air conditioner compressor transmission system and engineering machinery, the upper part of a rotating bracket is hinged with the upper part of a fixed bracket, and the rotating bracket can rotate around a hinge point; the right-hand thread knuckle bearing connecting rod comprises a rod part and a bearing part, and the bearing part is hinged to the lower end of the rotating support. The left-hand thread knuckle bearing connecting rod comprises a rod part and a bearing part, and the bearing part is hinged to the lower end of the fixing support; one end of the positive and negative thread adjusting long nut is in threaded connection with the rod part of the positive thread joint bearing connecting rod, the other end of the positive and negative thread adjusting long nut is in threaded connection with the rod part of the negative thread joint bearing connecting rod, and the positive and negative thread adjusting long nut is rotated in the positive or negative direction to enable the positive and negative thread joint bearing connecting rods to move in the opposite direction or back direction; and then the rotary support is driven to rotate towards or away from the fixed support, and the problem that the tensioning efficiency is low is solved.
Owner:XUZHOU XCMG MINING MACHINERY CO LTD
A support for replacing an insulator
The utility model belongs to the technical field of electric power engineering, especially relate to a support for replacing insulator, including joint plate, support rod, frame and first extension rod etc., two joint plates are in parallel distribution and are slidably arranged on the frame, and the support rods distributed on the same side are a group, and there are two groups in total, and each support rod is fixedly connected on each joint plate, and each first extension rod is slidably arranged between every two support rods in longitudinal alignment. Through setting the position adjustable joint plate and the length adjustable support rod, can flexible adaptation different length's insulator, and with the help of the clamping mechanism that clamping rod, torsional spring and rotating frame constitute, only need to place the insulator between two joint plates, utilize its own weight can trigger clamping rod around rotating frame hinge point positive rotation, make originally low clamping rod positive rotation to high place, complete the clamping fixation to insulator, do not need extra tool and complex operation, realize installation automation convenient, and it is convenient for later quick replacement, simplifies the process.
Owner:XINING FANGSHENG ELECTRIC POWER DESIGN CO LTD
Horizontal sliding hinge structure and horizontal sliding window
The utility model relates to the technical field of building doors and windows, and particularly discloses a horizontal sliding hinge structure and a horizontal sliding window. The horizontal pushing hinge structure comprises a cross link rod and a lock rod, the cross link rod can stretch out and draw back in the x-axis direction and the y-axis direction. A plurality of first hinge points and a plurality of second hinge points are arranged at the two ends, in the x-axis direction, of the cross connecting rod correspondingly. The lock rod is arranged in the z-axis direction of the first hinge point; the lock rod and the first hinge point can slide relatively in the y-axis direction. According to the scheme, the first hinge point and the lock rod are overlapped in the z-axis direction, so that the first hinge point and the lock rod can be arranged in the same rail on the horizontal sliding window provided with the horizontal sliding hinge structure; meanwhile, as the lock rod can slide relative to the lock rod in the y-axis direction, control over the lock rod cannot interfere with operation of the cross link rod, the horizontal sliding window with the horizontal sliding hinge structure can have a more compact structure, and the problem that an existing horizontal sliding window is poor in compactness is effectively solved.
Owner:FOSHAN SHUNDE KENENG IND CO LTD
Handheld assembly tool for interference press fitting of small plug-in and small socket
A handheld assembly tool for interference press fitting of a small plug-in and a small socket comprises an installation support, a cam, a pressing head, an adjustable supporting rod, a handle, a pressing rod and a spring. The cam is provided with a front end part and a tail part, the front end part is hinged to the cam connecting part, the tail part is connected with a pressing rod, and the cam can rotate around a hinge point; the upper end of the pressure head is in contact with the cam, and the lower end of the pressure head abuts against the small plug-in; the spring is assembled between the pressure head and the mounting support; the adjustable supporting rod is in threaded connection with the lower end of the mounting support; the handle is fixed on the handle connecting part; an anti-disengagement check ring is further arranged, a pair of L-shaped sliding grooves are formed in the anti-disengagement check ring, and a pair of clamping heads are arranged on the pressing head. The interference press-fitting device has the advantages that interference press-fitting can be accurately controlled under the condition that no external power exists, and the yield reaches 98%; 2, the weight of the tool is only 0.68 kg, the operation is convenient, and the assembly efficiency is improved by 50%; 3, compatibility is good, the device is suitable for multi-model assembly parts, and rapid switching of the assembly parts of different models can be completed within 60 seconds. And 4, the manufacturing cost is low.
Owner:SICHUAN TIANYUAN MACHINERY CO LTD OF 081 ELECTRONICS GRP
Box body assembly and refrigeration equipment
According to the box body assembly and the refrigeration equipment, a reference point of a door body coincides with one, farthest from a second reference plane, of the starting position and the ending position of a first hinge point, and in the process that the door body is opened to a first opening angle from a closed state, the door body is closed; a first vertical distance from the reference point to the outer edge and a second vertical distance from the reference point to the inner edge are gradually reduced, a third included angle between the first vertical line and the first reference plane is gradually reduced in a range of 0-90 degrees, and a fourth included angle between the second vertical line and the first reference plane is gradually increased; in the process that the door body is opened from the first opening angle to the second opening angle, the first vertical distance is gradually decreased, the third included angle is gradually decreased in the range of 0-90 degrees, the fourth included angle is gradually increased from smaller than 90 degrees to larger than 90 degrees, the second vertical distance is gradually decreased and then gradually increased, and in the preset angle range before the second opening angle, the first vertical distance is gradually decreased, and then the second vertical distance is gradually increased. The sine value of the fourth included angle is reduced while the second vertical distance is increased.
Owner:GUANGDONG MIDEA WHITE HOME APPLIANCE TECH INNOVATION CENT CO LTD +3
Foldable ladder capable of being stored and engineering machinery
The foldable ladder comprises a basic ladder, an upper foldable ladder body and a lower foldable ladder body, the upper foldable ladder body and the lower foldable ladder body are hinged to the upper end and the lower end of the basic ladder, and the upper foldable ladder body and the lower foldable ladder body are attached to the front side face of the basic ladder after being overturned around the hinge points of the upper foldable ladder body and the lower foldable ladder body; after the upper folding ladder and the lower folding ladder are unfolded on the basic ladder and are flush with the basic ladder, the positions of the upper folding ladder and the lower folding ladder are fixed at the hinged position of the upper folding ladder and the basic ladder and the hinged position of the lower folding ladder and the basic ladder through at least one anti-overturning component respectively. The storable folding ladder can be stored in a toolbox in the longitudinal beam after being folded, can meet the height requirement for getting on and off the vehicle after being unfolded, and has high practicability.
Owner:XUZHOU XCMG MINING MACHINERY CO LTD
Rapid roundness correction device for ring piece
The utility model discloses a ring piece rapid roundness correction device which comprises a base, a first round rod arranged on the base, a first sliding sleeve sleeved on the first round rod, a height adjusting mechanism arranged on the first sliding sleeve, a second sliding sleeve fixed on one side of the first sliding sleeve, a second round rod arranged in the second sliding sleeve in a penetrating mode, and a third sliding sleeve sleeved on the other end of the second round rod. A fourth sliding sleeve is fixed to one side of the third sliding sleeve, the lower end of a third round rod penetrates into the fourth sliding sleeve, a transverse sleeve is fixed to the top end of the third round rod, the rear end of a fourth round rod penetrates into the transverse sleeve, a laser base is hinged to the front end of the fourth round rod, and the laser base and the fourth round rod can be fixed after a screw on a hinge point of the laser base is tightened. And a large circular ring laser is fixed on the laser seat. The rapid roundness correction device for the ring piece can project a standard large circular ring, and can match the large circular ring to the inner ring and the outer ring of the ring piece by adjusting the height and the position of the large circular ring laser, so that the roundness of the ring piece can be rapidly corrected by referring to the standard large circular ring.
Owner:ZHANGJIAGANG HAILU ANNULAR FORGINGS
Segmented collaborative hinge type fan folding blade
The fan blade is divided into three modules, namely a blade root part, a blade middle part and a blade tip part, the blade root part is provided with a power device, the blade root part is hinged to the blade middle part, the hinge point is A, the blade middle part is hinged to the blade tip part, the hinge point is B, and the blade tip part is provided with a power device. The blade root is connected with the blade middle through a first folding device, the blade middle is connected with the blade tip through a second folding device, and the power device is connected with the first folding device. The segmented collaborative hinge type fan blade is simple in structure and low in cost, the modular design concept is adopted, the structure is simplified by optimizing connection, the structure and a folding device, the structural reliability is further improved, and the manufacturing difficulty of the fan blade is effectively reduced.
Owner:CHONGQING JIAOTONG UNIV
Three-degree-of-freedom large-stroke fast tool servo device and curved surface machining method thereof
The application discloses a three-freedom-degree large-stroke fast-tool-servo device, which comprises a workbench, a voice coil motor, a Z-direction displacement transmission mechanism, a three-axis connecting mechanism, an X-direction driving platform, a Y-direction driving platform, a tool holder and a tool. The three-axis connecting mechanism comprises a three-axis connecting plate and a three-axis connecting frame, and the three-axis connecting plate is connected with the three-axis connecting frame through X-axis and Y-axis flexible hinges around the three-axis connecting plate. The flexible hinges are provided with Z-axis flexible hinge points. The double-axis flexible hinges are provided with at least one X-axis flexible hinge point and one Y-axis flexible hinge point. The Z-direction displacement transmission mechanism, the three-axis connecting mechanism and the driver connecting rod are designed in an integrated mode. The piezoelectric ceramic driver is adopted. The three-freedom-degree active cutting of the tool can be realized, the large-stroke output capacity is achieved, the machining process of a complex optical surface can be efficiently completed, the displacement errors in multiple directions can be compensated, and the cutting force disturbance problem is solved.
Owner:JILIN UNIVERSITY
Elliptical machine capable of adjusting step pitch
The utility model discloses an elliptical machine capable of adjusting step pitch. The elliptical machine comprises a bottom frame; the main frame is mounted at the top of the bottom frame; the rewinding mechanism comprises a rewinding point capable of rotating along a circular track, a connecting cylinder is arranged on the portion, on the outer side of the rewinding mechanism, of the rewinding point, a movable part is arranged on the portion, on the inner side of the rewinding mechanism, of the rewinding point, and the movable part can fix the rewinding point through a plurality of locking hook parts arranged in the rewinding mechanism; one end of the first connecting rod is hinged to one side of the main frame, and a swing arm extends from the hinged point; one end of the second connecting rod is hinged to the first connecting rod, the other end of the second connecting rod is hinged to the connecting cylinder, and a pedal is installed above the second connecting rod.
Owner:ZHEJIANG YPOO HEALTH TECH CO LTD
Turnover type dual-purpose mud scraping plate for road roller
The invention discloses a reversible dual-purpose mud scraper for a road roller, the reversible dual-purpose mud scraper comprises a mounting assembly and a dual-purpose mud scraper assembly, the mounting assembly comprises a mounting seat connected with a frame and a connecting plate, one end of the connecting plate is hinged with the mounting seat, and the other end of the connecting plate is fixedly connected with the dual-purpose mud scraper assembly; a limiting assembly detachably connected with the mounting base is arranged at the end, away from the hinge point of the mounting base and the connecting plate, of the connecting plate. The flexible adjustment and reliable locking of the working angle of the mud scraping plate are realized, and the mud scraping adaptability and the working efficiency of the road roller under different working conditions are improved; a dual-purpose mud scraping structure formed by combining a rigid metal plate and an elastic plate is adopted, the performance limitation of a single scraping plate when facing hard materials or sticky and wet soil is improved, and the problems that mud scraping is not thorough and the scraping plate is prone to being damaged are effectively solved; meanwhile, due to the optimally-designed included angle between the plates and the arc-shaped through hole structure, it is guaranteed that the two scraping plates do not interfere with each other in the switching process, positioning is accurate, and operation convenience and working stability are effectively improved.
Owner:LIUGONG WUXI ROAD EQUIP CO LTD
Operating mechanism for a circuit breaker and circuit breaker
ActiveCN224384223UProtective switch operating/release mechanismsCircuit-breaking switch contactsControl theoryCircuit breaker
An operating mechanism for a circuit breaker includes: a first base plate, a second base plate, a first linkage mechanism, and a second linkage mechanism. The first and second linkage mechanisms each include a first link, a second link, and a third link. One end of the first and third links is pivotally connected to the corresponding base plate at a first hinge point and a third hinge point, respectively. One end of the second link is hinged to the free end of the third link, and the other end is hinged to the middle of the first link at a second hinge point. The first link includes a first hole provided on its free end. An output shaft extends through the first hole of the first link of the first and second linkage mechanisms. The first and / or second linkage mechanism further includes a fourth link. One end of the fourth link is pivotally connected to the first hinge point, and the fourth link is hinged at the middle of the second hinge point. The fourth link has a second hole on its free end, and the output shaft extends through the second hole.
Owner:SCHNEIDER ELECTRIC IND SAS
A feed dog motion for a cylinder sewing machine
The utility model provides a kind of movement device of cylinder sewing machine feed dog, belong to sewing machine technical field.It solves the problem that existing feed dog movement device is not applicable to cylinder sewing machine.This sewing machine includes the cabinet with long arm, the first end of swing arm is fixed with feed dog, the middle part of swing arm is hinged with long arm, the first end of lifting tooth bar is hinged with long arm, the first end of lifting tooth bar is located directly below the first end of swing arm, lower shaft can drive swing arm swing back and forth around its hinged point by feeding assembly, lower shaft can drive lifting tooth bar swing up and down around its hinged point by lifting tooth assembly, the first end of lifting tooth bar swing upwards can make the first end of swing arm move upwards, swing arm can make the first end of swing arm move downwards under the action of its elasticity.This movement device of cylinder sewing machine feed dog has the advantages of reasonable use of space, smooth movement of cylinder sewing machine feed dog.
Owner:上工缝制机械(浙江)有限公司
Multifunctional portable clothes hanger
The utility model belongs to the technical field of clothes hangers, and particularly relates to a multifunctional portable clothes hanger. The clothes hanger comprises a hanging rod and two supporting rods, first containing grooves are formed in the two sides of the hanging rod, the supporting rods correspond to the first containing grooves one to one, one ends of the supporting rods are arranged in the corresponding first containing grooves and hinged to the hanging rod, and the supporting rods can rotate with the hinge points where the supporting rods are hinged to the hanging rod as axes to be contained in the first containing grooves; the supporting rod comprises an outer rod and an inner rod arranged on the inner side of the outer rod in a sleeving mode. The inner rod can stretch out and draw back in the outer rod through the end, away from the end hinged to the hanging rod, of the outer rod. Therefore, according to the clothes hanger, the two supporting rods can be folded and stored in the hanging rod by means of the first storage grooves, and the supporting rods can stretch out and draw back through movement of the inner rods in the outer rods. Compared with the prior art, the clothes hanger does not occupy extra space, is easy to carry and store, and can adapt to clothes with necklines of various sizes.
Owner:BEIJING CHAOYANG DISTRICT EXPERIMENTAL PRIMARY SCHOOL
Wire clamp automatic opening device
The utility model relates to a wire clamp automatic opening device used for opening a wire clamp assembly, the wire clamp assembly comprises a wire clamp bearing seat used for placing a wire harness, the wire clamp bearing seat is fixedly connected with a main body, one end of the main body is hinged with a pressing block, and the other end of the main body is hinged with a locking block through a connecting rod. The lower surface of the main body is fixedly connected with a supporting frame, the supporting frame is provided with an overturning assembly and a rotating assembly, the overturning assembly drives the locking block and the connecting rod to rotate around a hinge point, and the rotating assembly drives the pressing block to rotate around the hinge point, so that the wire clamp assembly is driven to be automatically opened. The overturning assembly firstly drives the locking block and the connecting rod to rotate around the hinge point, then the rotating assembly drives the pressing block to rotate around the hinge point, and finally the wire clamp assembly is driven to be automatically opened, so that the overall automation rate of equipment is improved, and the machining time is shortened.
Owner:KUNSHAN HAOTAIFU INTELLIGENT TECHNOLOGY CO LTD
Automatic suction cup vibration type separable bridge breaking device
The utility model particularly relates to an automatic suction cup vibration type separable bridge breaking device which comprises a stand column and a fixing support hinged to the top of the stand column, an angle adjusting assembly is arranged between the stand column and the fixing support, and the fixing support is driven by the angle adjusting assembly to rotate relative to the hinge point of the fixing support and the top of the stand column. A first telescopic air cylinder is fixedly connected to the fixing support, and the driving end of the first telescopic air cylinder is detachably connected with an automatic suction cup vibrator. Compared with a common auxiliary bridge breaking discharging structure installed on a hopper in the market, the device can achieve automatic bridge breaking of one to n charging barrels without manual disassembly and assembly, the positioning accuracy is high, the labor cost is reduced, the operation efficiency is improved, the application scene is wide, the application condition requirement is low, and maintenance and overhaul are convenient.
Owner:ZHEJIANG CANAAN TECH
Tool pliers
The utility model is suitable for the technical field of hardware tools, and provides a pair of tool pliers, which comprises a first clamping body, a second clamping body, a padlock and a catching groove, handles are connected to the first clamp body and the second clamp body, and the first clamp body is hinged to the second clamp body; the buckle lock is matched with the buckle groove, the buckle lock is arranged at the position, close to the first clamp body, of the handle of the first clamp body and movably connected with the handle of the first clamp body, and the buckle groove is formed in the second clamp body and located at the arc position with the hinge point of the first clamp body and the second clamp body as the circle center; and when the tool pliers are closed, the buckle lock is buckled with the buckle groove. Due to the fact that the padlock is arranged at the position, close to the first clamp body, of the handle of the first clamp body, and the catching groove is formed in the arc position, with the hinge point as the circle center, of the second clamp body, when the tool pliers are closed, a user only needs to operate the padlock with the thumb, the padlock and the catching groove can be buckled, and convenience of single-hand operation is particularly considered in design.
Owner:HUIZHOU LEITITAN TECH CO LTD
A rotary drilling tool suitable for plateau geology
This invention relates to the field of rotary drilling rig technology, specifically to a rotary drilling rig suitable for high-altitude geology, comprising an upper cylinder, a drill bit, and a locking mechanism. A notch is provided on one side of the upper cylinder, and a side cylinder is located at the notch. The upper end of the side cylinder is hinged to the upper cylinder, and the lower end of the side cylinder is hinged to the drill bit. The locking mechanism includes a locking block, a locking latch, and a control assembly. The locking block is fixedly connected to the drill bit and has a locking hole. The locking latch is hinged to the lower end of the upper cylinder, and a locking tongue is located at the outer end of the locking latch at its hinge point. A limiting block is located at the outer end of the locking tongue. A constraint hole extends inward through the outer wall of the upper cylinder, through which the locking tongue passes. When the locking tongue is embedded in the locking hole, the limiting block abuts against the outer wall of the upper cylinder, preventing the locking latch from being driven into or moving upward into the upper cylinder. The design of having part of the locking latch inside the upper cylinder and part outside avoids the risk of breakage of a fully internal locking latch, ensuring the safety and reliability of the rotary drilling rig and making it suitable for high-altitude geology.
Owner:CHINA RAILWAY CONSTR ELECTRIFICATION BUREAU GRP RALL TRANSIT EQUIP CO LTD +1
Super lifting device, crane and control method of crane
ActiveCN116715158BCargo handling apparatusPassenger handling apparatusHydraulic cylinderMarine engineering
The application relates to the technical field of engineering machinery, and discloses a super-lifting device, a crane and a control method of the crane. The super-lifting device comprises a lifting arm, a super-lifting mast, a first connecting piece, a second connecting piece, a limiting mechanism and a pre-tightening device. When the lifting arm is elongated, the arm head of the lifting arm pulls the super-lifting mast to rotate around a hinge point through the first connecting piece, so that the lifting amplitude of the super-lifting mast is realized, the traditional lifting amplitude cylinder is omitted, the structure is simple, the overall weight is reduced, the problem that the lifting arm center of gravity of the super-lifting device is high when the traditional lifting amplitude cylinder is arranged is solved, and the load lifting stability is improved. When the lifting amplitude of the super-lifting mast reaches a preset lifting amplitude angle, the limiting mechanism fixes the super-lifting mast at the preset lifting amplitude angle, the arrangement of the hydraulic cylinder is reduced, the layout is simplified, the weight is reduced, the cost is saved, the reliability is high, and the stability is good. The second connecting piece is pulled through the pre-tightening device, the pre-tightening of the second connecting piece is realized, the stability of the structure is improved, and the load lifting performance of the lifting arm is ensured.
Owner:HUNAN SANY MEDIUM TONNAGE HOISTING MASCH CO LTD
Workbin turnover mechanism
The utility model relates to a material box turnover mechanism which comprises a base, a supporting seat and an oil cylinder, wherein the bottom of the supporting seat is hinged to the base through a pin shaft, and the bottom of the supporting seat is hinged to the base through the oil cylinder. The supporting base is of an L-shaped folded plate structure and comprises a vertical plate and a transverse plate which are connected in a welded mode. Two windows for accommodating bottom feet of the charging box are symmetrically formed in the bottom of the vertical plate; a limiting mechanism for limiting the positions of bottom feet of the loading box is arranged on the transverse plate; a hinge point for an oil cylinder is arranged at the bottom of the transverse plate; and the oil cylinder pushes the bottom of the transverse plate, so that the supporting seat turns over around the pin shaft. The material box is simple in structure and convenient to operate, the bottom feet of the material box are not damaged in the overturning material pouring process of the material box, and the maintenance cost is reduced.
Owner:JIANGYIN JINGCHEN CNC CO LTD
Filling machine screw cap gripper for producing single-walled carbon nanotube slurry and filling machine
The utility model belongs to the technical field of filling equipment, and particularly relates to a cap screwing gripper of a filling machine for producing single-walled carbon nanotube slurry, which comprises a hollow connecting rod and a cap screwing gripper, the adjusting piece is connected with the air cylinder through a piston rod; the connecting arms are circumferentially and symmetrically hinged to the lower edge of the connecting rod, and the adjusting part is located in the middle of each connecting arm; two sides of the upper parts of the supporting claws are respectively hinged with the adjusting piece and the connecting arms; the air cylinder is suitable for driving the adjusting piece to move in the axial direction of the connecting rod. When the adjusting piece moves upwards, the adjusting piece acts on the hinge point of the supporting claw through traction, so that the supporting claw is folded inwards to be meshed with the outer wall of the internal thread screw cap. When the adjusting piece moves downwards, the lower edge of the adjusting piece extrudes the guide inclined face of the supporting claw, so that the supporting claw expands outwards, and the inner wall of the external thread screw cap is supported.
Owner:HAIYI HIGH-TECH MATERIALS (JIANGSU) CO LTD
Dispenser for dispensing web material from a roll
Dispenser for dispensing web material from a roll, the dispenser including a housing defining an interior of the dispenser and an arm hinged at a hinge point to a support member. The arm is adapted to pivot about the hinge point. The dispenser further includes a spindle attached perpendicular to the arm. The spindle is adapted to rotatably support a roll during dispensing. The arm is pivotable between a first position in which the spindle is arranged in a dispensing position within the housing of the dispenser and a second position in which the spindle is arranged in a loading position outside the housing of the dispenser in order to allow loading of a roll onto the spindle.
Owner:ESSITY HYGIENE & HEALTH AB
Large steel material processing and conveying device
The present application belongs to the field of auxiliary equipment for large steel processing, and particularly relates to a large steel processing and conveying device, which comprises a conveying frame, a plurality of cross beams arranged on the conveying frame, a connecting shaft rotatably connected between the left ends and the right ends of the cross beams, a rotating driving structure connected to the two connecting shafts, a plurality of gears connected to the two connecting shafts in the axial direction, an arc-shaped gear rack meshed with each gear, a support seat connected to the cross beam, a connecting block corresponding to the arc-shaped gear rack hingedly connected to the support seat, a roller shaft connected between the connecting block and the arc-shaped gear rack, a supporting roller connected to the roller shaft, the arc-shaped gear rack being circular with the hinged point of the support seat and the connecting block, an arc-shaped sliding hole penetrating through the arc-shaped gear rack, a gap hole penetrating through the cross beam, and a limiting pin corresponding to the arc-shaped sliding hole connected in the gap hole. The present application can adjust the included angle between the two groups of supporting rollers according to the type of the steel to be processed, so as to effectively clamp the steel and ensure the conveying stability of the steel.
Owner:CHINA NAT PETROLEUM CORP +2