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70 results about "Tooth segment" patented technology
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Oral liquid filling bottle body cleaning and sterilizing device
The invention relates to the technical field of oral liquid bottle cleaning and sterilizing, in particular to an oral liquid filling bottle body cleaning and sterilizing device. Comprising a case, an inner frame is arranged in the case, a motor, an inner gear ring and an outer gear ring are fixedly mounted on the inner frame, an intermittent shaft and a revolution shaft are rotatably mounted on the inner frame, two transmission interruption areas are arranged on the inner frame and correspond to the position between the inner gear ring and the outer gear ring, and a transmission wheel is mounted at the output shaft end of the motor; three fan-shaped tooth sections and three tooth-free arc sections are alternately arranged on the transmission wheel, the central angles of the three fan-shaped tooth sections are gradually increased by 30 degrees in the clockwise direction, and a driven gear meshed and matched with the fan-shaped tooth sections is mounted on the intermittent shaft. The device has the beneficial effects that through precise linkage of the motor, the transmission wheel, the variable-speed shaft, the inner gear ring and the outer gear ring, a stepped dehydration system is constructed, and the problem that stubborn water stains of traditional oral liquid bottle cleaning and sterilizing equipment are difficult to peel off is solved.
Owner:HANGZHOU L TONJUN PHARMA
Differential roller screw drive assembly
The invention provides a differential roller screw transmission assembly, which comprises a nut, a screw, a plurality of rollers and a retainer group, the nut is provided with an inner hole penetrating in the axial direction, and an annular tooth section is arranged on the inner circumferential face. The threaded rod is arranged in the inner hole in a penetrating mode, a thread structure is arranged on the peripheral face of the threaded rod, the thread structure is provided with M thread lines, and M is an integer larger than one. The plurality of rollers are arranged between the nut and the screw. Each roller has a uniform pitch diameter, the periphery of each roller is provided with an annular tooth groove structure with a plurality of tooth grooves, and the annular tooth groove structures are meshed with the thread structure of the screw rod and the annular tooth section of the nut. The number of the plurality of rollers is N, and N is a factor greater than one of M. The retainer group is arranged at two ends of the roller. And the spiral angle of each thread line of the screw is matched with the circumferential distance of the plurality of rollers, so that the axial distance between any thread line and the corresponding tooth groove between the two adjacent rollers is equal to the pitch of the annular tooth groove structure. Therefore, the part design and the manufacturing process are simplified, and the load sharing effect is improved.
Owner:FIRST DOME
Cathode and tooling for multi-tooth segmented electrolytic machining of large-caliber gun barrel rifling
ActiveCN116673553BElectrical-based machining electrodesProcess efficiency improvementElectrolysisTooth segment
The present invention is a multi-tooth segmented electrolytic machining cathode and tooling for rifling large-caliber artillery barrels, which overcomes the problems of uneven flow field and easy short circuit during the machining process of the electrolytic machining cathode in the prior art, poor cathode forming accuracy, high cost of repeated cathode correction, and long development cycle. It includes a cathode body, on which a segmented cathode copper body with multi-tooth working teeth is designed. The rear guide is set at the tail end of the cathode body, and the front guide is set at the cone end of the cathode body. The intermediate connecting device between the cathode body and the pull rod plays a connecting role. During operation, the cathode body, the pull rod, and the intermediate connecting device rotate and feed together. The inner wall of the segmented cathode copper body on the cathode body is provided with a wedge-shaped positioning keyway. The segmented cathode copper body is fixed in series with a wedge-shaped key, and the multi-tooth working teeth on the segmented cathode copper body have different characteristic parameters, including the negative line angle, the positive line angle, the tooth width, the tooth depth, the wrap angle, etc.
Owner:XIAN TECH UNIV
Robotic pool cleaner
A robotic pool cleaner is provided. The cleaner includes: a cleaning body, including a water inlet and a water outlet separate from the water inlet; a driving gear, the driving gear being rotatably provided on the cleaning body; a second tooth segment, the second tooth segment being meshed with the driving gear; and a cleaning roller brush mechanism, including a roller brush body and a roller brush gear; where the brush roller gear is connected to the brush roller body and meshed with the second tooth segment, and when rotating, the driving gear drives the second tooth segment to rotate, to drive the brush roller gear and the brush roller body to rotate relative to the cleaning body.
Owner:SUZHOU SMOROBOT TECH CO LTD
Attachment milling unit with transversely cut heads arranged at an angle to each other and driven gear with bevel teeth and engineering machine with such attachment milling unit
ActiveCN119948225Bstable structurereduce wearMechanical machines/dredgersGrain treatmentsRotational axisMilling cutter
This invention relates to an attached milling unit, the housing of which has an attachment bracket for attachment to a movable support arm of a carrier. The housing extends along a longitudinal axis (01). Furthermore, the attached milling unit includes at least one motor (02) and a transmission unit, the axis of rotation (05) of which is perpendicular to the longitudinal axis (01) of the housing. Two cross-cutting heads (06) driven to rotate by the transmission unit are attached to both sides of the longitudinal axis (01) of the housing and carry several milling cutters (07). Each cross-cutting head (06) has a driven output shaft (09) about which it rotates, wherein the two output shafts (09) of the cross-cutting head (06) are arranged at an angle to each other and each forms an acute angle with the longitudinal axis (01) of the housing on the side opposite to the attachment bracket. Each output shaft (09) is attached with a driven gear (10) having helical teeth, wherein each helical tooth directly meshes with the corresponding spur tooth segment of the drive spur gear (04).
Owner:KEMROC HLDG GMBH
Electric drive unit for closing and / or opening a motor vehicle lock
ActiveDE102018125991B4Power transmission/actuator featuresFriction gearingsDrive wheelElectric drive
Electric drive unit for closing and / or opening a motor vehicle lock, in particular a motor vehicle door lock, with an actuating unit for actuating the motor vehicle lock, comprising at least one actuating element (10), with an electric motor (4) and a downstream gearbox provided for actuating the actuating unit, and wherein the gearbox is designed with at least one drive wheel (6) and at least one driven wheel (7, 8), characterized in that the drive wheel (6) is equipped with different tooth segments (16, 17) which, depending on the angle of rotation (Δ, Δ), engage with the driven wheel (7) or different driven wheels (7, 8) during its rotation.
Owner:KIEKERT AG
Bevel gear pair tooth surface load distribution calculation method and system considering through cracks
The invention specifically discloses a helical gear pair tooth surface load distribution calculation method and system considering through cracks, and the method comprises the following steps: judging the number J of gear tooth pairs participating in meshing at a corresponding moment t, and dispersing the gear tooth pairs into N equant and independent sheet straight gears in the tooth width direction; the total rigidity of the ith normal tooth piece in the bevel gear pair is calculated; the total rigidity of the ith crack tooth piece in the bevel gear pair is calculated; the comprehensive time-varying meshing rigidity of the bevel gear pair is calculated; the inter-tooth load distribution coefficient and the tooth direction load distribution coefficient in the meshing tooth surface of the bevel gear pair are obtained; and calculating the dynamic meshing force (dynamic load) in the gear transmission process, and obtaining the tooth surface load distribution of the helical gear pair under the through crack. By adopting the technical scheme, the dynamic model of the helical gear pair under the through crack is established to calculate the dynamic load of the helical gear pair, and the tooth space distribution coefficient and the tooth direction distribution coefficient of the helical gear pair are multiplied by the dynamic load to obtain the tooth surface dynamic load distribution of the helical gear pair under the through crack.
Owner:CHONGQING UNIV
Robotic pool cleaner
A robotic pool cleaner is provided. The cleaner includes: a cleaning body, including a water inlet and a water outlet separate from the water inlet; a driving gear, the driving gear being rotatably provided on the cleaning body; a second tooth segment, the second tooth segment being meshed with the driving gear; and a cleaning roller brush mechanism, including a roller brush body and a roller brush gear; where the brush roller gear is connected to the brush roller body and meshed with the second tooth segment, and when rotating, the driving gear drives the second tooth segment to rotate, to drive the brush roller gear and the brush roller body to rotate relative to the cleaning body.
Owner:SUZHOU SMOROBOT TECH CO LTD
Device for adjusting a seat part of a vehicle seat and method for mounting such a device
The device serves for adjustment, in particular height adjustment, of a seat section of a vehicle seat by means of a pinion adjustment device. This device comprises a pinion (10) mounted on a pinion shaft (R) and a meshing tooth segment (12) which, in the assembled state, is fixed on a shaft (8) rotatably mounted in a bearing opening (4) of a support component (2) about a pivot axis (D). An eccentric bushing (18) is inserted into the bearing opening (4), and by rotating the eccentric bushing (18), an axial distance (a) between the pivot axis (D) and the pinion shaft (R) can be adjusted. This simplifies assembly and allows a suitable axial distance (a) to be easily set for operation.
Owner:BROSE FAHRZEUGTEILE GMBH & CO KG
Seat extending part
The utility model provides a seat extension part which comprises a pair of extension rods, a fixed seat, a connecting rod and a supporting plate, the extension rods and the fixed seat can be connected in a manner of extending out or retracting relative to the fixed seat, the connecting rod is fixed at the extension ends of the two extension rods, the supporting plate is provided with a connector, and the connector is connected with the connecting rod through the connecting rod. The connector is connected with the connecting rod in an assembled mode, a gear component, a wedge-shaped space, an elastic component and a wedge-shaped tooth block are arranged in the connector, a gear tooth section is arranged on the gear component, gear pushing heads are arranged at the two ends of the gear tooth section, the gear component is fixed to the connecting rod, and the wedge-shaped space is arranged in the wedge-shaped space. The wedge-shaped tooth block and the elastic component are arranged in the wedge-shaped space, the wedge-shaped tooth block is located on the meshing side of the gear tooth section of the gear component, and the wedge-shaped space moves along with the supporting plate. The fixing seat can be generally used for being fixed at the bottom of a seat, when the fixing seat is used, the supporting plate can be pulled out from the lower portion of the seat, the extending rod extends out, the supporting plate can be unfolded, and the fixing angle of the supporting plate can be adjusted.
Owner:NINGBO RAYCITY INTELLIGENT HOME FURNISHING CO LTD
Drive device comprising a gear rack element for a slidable leaf in the form of a sliding leaf or a slidable lift-and-slide leaf of a window or of a door
PCT designated stageWO2025190548A1Power-operated mechanismWing suspension devicesSlide windowClassical mechanics
Owner:SIEGENIA AUBI KG
Wind turbine power transmission system
The invention relates to a wind turbine (2) comprising a nacelle (8) arranged on top of a tower (12), a rotor comprising a hub (6) and a plurality of blades (4), a main shaft (16) configured to be driven by the rotor about a main axis and supported on the nacelle (8), a generator (28) having a generator rotor and a generator stator, and a gear system (25) arranged to increase the rotational speed between the rotor and the generator rotor. The gear system (25) comprises a stationary ring gear (50), an input member (53) coupled to or driven by the main shaft (16), the input member (53) having a plurality of radially movable tooth segments (52, 63) carried in a guiding slot and engageable at an outer end with the ring gear (50), a central output member (55) within the input member (53), the central output member having an outer eccentric profile acting on and driven by inner ends of the radially movable tooth segments (52, 63), whereby through engagement with the ring gear (50) a rotational movement of the input member (53) drives the radially movable tooth segments (52, 63) and effects a rotation of the central output (55) member.
Owner:VESTAS WIND SYSTEMS AS
A high-efficiency and high-precision modeling method for contact analysis of face gear split-torque transmission structure
This invention discloses a high-efficiency and high-precision modeling method for contact analysis of face gear torque transmission structures, belonging to the field of aerospace technology. The method includes: dividing the gear structure and solving to obtain the coordinates of all nodes on the numerical tooth surface of the face gear pair; based on the coordinates of all nodes on the numerical tooth surface, introducing the axial installation error, shaft intersection error, and axis offset error of the face gear, establishing a structural mesh model of the face gear torque transmission system; defining contact pair relationships and boundary conditions on the structural mesh model; and performing convergence calculations on the structural mesh model based on the defined contact pairs and boundary conditions to complete the face gear contact analysis. By constructing a local tooth segment model structure of the meshing region between the face gear and the cylindrical gear in the face gear pair to replace the full tooth model structure for finite element contact analysis, the computational efficiency is improved, effectively avoiding the problem of high workload and low efficiency in contact analysis due to the large number of finite element meshes in the face gear torque transmission system.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS +1
Orthodontic aligner with isolated segments
An orthodontic aligner includes a posterior segment configured to apply first forces to move a set of posterior teeth of a dental arch of a patient. The orthodontic aligner further includes an anterior segment configured to apply second forces to move a set of anterior teeth of the dental arch. The orthodontic aligner further includes a connector that joins the posterior segment and the anterior segment. The connector is configured to isolate the first forces from the second forces. Isolation of first forces from the second forces enables: a) the first forces to be applied to the set of posterior teeth without substantial interference from the second forces applied to the set of anterior teeth; and b) the second forces to be applied to the set of anterior teeth without substantial interference from the first forces applied to the set of posterior teeth.
Owner:ALIGN TECHNOLOGY INC
Orthodontic appliances and treatment methods
An orthodontic appliance and assembly for distal movement of segments in the posterior jawbone region is disclosed. The orthodontic appliance comprises a mesial element having a mesial base surface configured for attachment to a premolar or canine, an arm having a pivot at the distal end of the arm, and a distal element having a distal base surface configured for attachment to a molar. The distal element or distal portion of the arm comprises a distal anchoring structure for connecting a first distal movement force element. The mesial element may have a projection defining a groove for fitting an elastic band, the groove being positioned along a rounded convex surface of the projection having a diameter of at least 3 mm. A method of treatment is also provided.
Owner:ORTHODONTIC RES & DEV
Mechanical information display method, device and medium for risk prompt of impacted tooth extraction process
PendingCN122174532AComputer-aided planning/modellingDesign optimisation/simulationImpact toothTissue material
This invention relates to a method, device, and medium for displaying mechanical information for risk warning during impacted tooth extraction. The method includes: Step S1: Obtaining the three-dimensional modeling results of each tissue unit; Step S2: Obtaining the modeling results of each tooth segment unit; Step S3: Constructing the tooth segment and its contact constraints with surrounding tissues; Step S4: Based on the constructed contact constraints, combined with the overall finite element stiffness matrix and operational load, solving for the displacement response of each finite element mesh; Step S5: Based on the displacement response of each finite element mesh and the shape function, obtaining the displacement matrix of each element, and further obtaining the strain tensor of each element; Step S6: Based on the constitutive matrix of the tissue material corresponding to each element and the strain tensor, obtaining the stress tensor of each element; Step S7: Comparing the stress tensor of each element with its pre-configured threshold and assigning color values to the finite element mesh of each element. Compared with the prior art, this invention has the advantages of real-time performance and high accuracy.
Owner:SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
A high-efficiency and high-precision modeling method for contact analysis of face gear split-torque transmission structure
This invention discloses a high-efficiency and high-precision modeling method for contact analysis of face gear torque transmission structures, belonging to the field of aerospace technology. The method includes: dividing the gear structure and solving to obtain the coordinates of all nodes on the numerical tooth surface of the face gear pair; based on the coordinates of all nodes on the numerical tooth surface, introducing the axial installation error, shaft intersection error, and axis offset error of the face gear, establishing a structural mesh model of the face gear torque transmission system; defining contact pair relationships and boundary conditions on the structural mesh model; and performing convergence calculations on the structural mesh model based on the defined contact pairs and boundary conditions to complete the face gear contact analysis. By constructing a local tooth segment model structure of the meshing region between the face gear and the cylindrical gear in the face gear pair to replace the full tooth model structure for finite element contact analysis, the computational efficiency is improved, effectively avoiding the problem of high workload and low efficiency in contact analysis due to the large number of finite element meshes in the face gear torque transmission system.
Owner:AVIC BEIJING INST OF AERONAUTICAL MATERIALS +1
Screw
The invention discloses a screw, which is mainly characterized in that a plurality of convex ribs are arranged on a rod body, a chip removal part is arranged between any two adjacent convex ribs, the chip removal part is provided with two inclined surfaces respectively connected with the plurality of convex ribs and a containing groove connected with the plurality of inclined surfaces, and a plurality of rotary cutting parts are arranged on threads of the screw. The two tooth surfaces of each thread are connected to a tooth peak, different vertical distances are formed between the tooth bottoms of the two tooth surfaces and a reference line defined by the tooth peak, meanwhile, one tooth surface is further provided with two tooth sections arranged at different inclination angles, the multiple threads are asymmetrically arranged, and through rotary cutting of the multiple rotary cutting parts and the multiple convex ribs, the multiple rotary cutting parts and the multiple convex ribs are combined in a rotary cutting mode. Therefore, the cutting effect is greatly improved by matching with the asymmetrically arranged screw teeth, the locking resistance is further reduced, the drawing resistance is improved, the screw is prevented from being easily pulled out, generated cuttings can be guided into the containing groove by the inclined surfaces, and rapid chip removal is facilitated.
Owner:TAIWAN SHAN YIN INT CO LTD
Automobile seat backrest rotation adjusting mechanism
Owner:ADIENT (CHONGQING) AUTOMOTIVE COMPONENTS CO LTD
Three-axis linkage synchronous swinging toothbrush head supported by block full-length bearing
The invention discloses a three-axis linkage synchronous swinging toothbrush head supported by a block full-length bearing, and belongs to the technical field of oral cleaning appliances. The driving swinging component, the first driven swinging component and the second driven swinging component are arranged in the static shell in a swinging mode. A rigid driving shifting piece is arranged on the driving swing component and inserted into the driving groove of the first driven swing component to drive the first driven swing component to swing. The first driven swing component and the second driven swing component are provided with tooth sections which are meshed with each other to form a phase control synchronizing mechanism. And an annular guide supporting surface which continuously extends along the swinging axis direction is arranged in the static shell and is in sliding fit with the peripheral surfaces of the three swinging components to form a full-length bearing supporting structure. Through full-length bearing supporting in the block shell, the stability of a multi-shaft swing structure is improved, and through cooperation of rigid shifting piece driving and a phase synchronization mechanism, the multi-shaft swing mechanism has the advantages of being reliable in transmission, low in noise, resistant to abrasion and good in cleaning effect.
Owner:解敬
Electric operation mechanism of ring main unit
ActiveCN223729298UBoards/switchyards circuit arrangementsSwitchgear arrangementsGear wheelControl engineering
Owner:SUZHOU YANKAI ELECTRIC TECH CO LTD
A large-sized split combined gear ring
The invention discloses a large-scale split combined gear ring, comprising a plurality of circular arc-shaped tooth segments, the tooth segments are surrounded by a circular ring-shaped support ring, the tooth segments are composed of two upper and lower opposite tooth rings, the inner end surface of the tooth ring is formed with a T-shaped slot penetrating the end surfaces of both ends of the tooth ring, the inner end surface of the tooth ring is formed with a plurality of T-shaped slots penetrating the outer wall of the tooth ring, a plurality of engaging teeth are abutted on the outer wall of the tooth segment, a T-shaped snap block is formed at the root of the engaging teeth, and the snap block is inserted into the T-shaped slot of the tooth ring; an arc-shaped clip strip with an "I"-shaped cross section is provided between the adjacent tooth segments, and the arc-shaped clip strip is inserted into the T-shaped slot of the tooth ring; a plurality of fastening bolts are inserted into the inner wall of the tooth segment, and the ends of the fastening bolts are screwed and fixed on the arc-shaped clip strip.
Owner:ZHEJIANG HAITIAN MACHINERY
Battery tab removal device
A battery tab cutting device includes a clamping assembly (1), a cutting assembly (2), and a linkage assembly. The clamping assembly (1) is provided with a rack (34). The cutting assembly (2) includes a cutting substrate (21), a swing arm (22), and a cutter (23). The cutting substrate (21), the swing arm (22), and the cutter (23) are connected in sequence. The cutter (23) is oscillatingly mounted on the cutting substrate (21) via the swing arm (22). The linkage assembly includes a first linkage member (31), a second linkage member (32), and a third linkage member. (33) and rack (34), the rack (34) is disposed on the clamping assembly (1), the cutting substrate (21) is rotatably sleeved on the first linkage member (31), the first linkage member (31) is provided with a first helical tooth segment (311) and a second helical tooth segment (312), the second linkage member (32) is slidably sleeved on the rocker arm (22), the second linkage member (32) is screwed to the first helical tooth segment (311), and the two ends of the third linkage member (33) are respectively engaged with the second helical tooth segment (312) and the rack (34).
Owner:GUANGDONG BRUNP RECYCLING TECH CO LTD +1
Ton bag feeding device for chemical fertilizer mixing
The utility model discloses a ton bag feeding device for chemical fertilizer mixing, including frame and control device, and the frame includes lower frame body and support frame, and the control device is installed between the support frame of both sides. Control device includes linear guide rail, double -end screw and control board, and linear guide rail support installation is on the support frame of one side, and double -end screw rotatory support installation is on the support frame of the other side, and one end of two control boards is respectively with linear guide rail sliding fit connection, and the other end of two control boards respectively with the positive tooth segment and the reverse tooth segment screw thread cooperation of double -end screw rotatory joint, and one end of double -end screw is installed with drive arrangement. The utility model discloses the interval between two control boards is adjusted to control the flow of the discharge bag mouth, and when the control board of both sides is closed to a certain distance, and the discharge bag mouth is closed, and when the worker first unties the rope, or needs to use the rope to tie the discharge bag mouth, the ton bag is located on the frame, and the safety hazard is reduced.
Owner:YICHANG EZHONG CHEM
Stator for an electric machine, vehicle and method for manufacturing the stator
PendingDE102024119151A1Magnetic circuit stationary partsManufacturing stator/rotor bodiesElectric machineryTooth segment
The invention relates to a stator (10) for an electric machine (52), comprising at least one stator tooth ring (12) extending in a ring shape around an axial direction (11), wherein the stator tooth ring (12) is segmented in the axial direction (11) into at least one axial tooth ring of the first type (30) and at least one axial tooth ring of the second type (32), wherein the at least one axial tooth ring of the first type (30) is segmented in a circumferential direction (15) of the stator tooth ring (12) into at least one T-shaped tooth segment (24) with teeth (14) pointing outwards in a radial direction (13) of the stator tooth ring (12), and the at least one axial tooth ring of the second type (32) is segmented in the circumferential direction (15) of the stator tooth ring (12) into at least one U-shaped tooth segment (26) with teeth (14) pointing outwards in the radial direction (13) of the stator tooth ring (12). It is segmented. The stator has improved magnetic properties and simultaneously allows for wave winding.
Owner:DR ING H C F PORSCHE AG
Plastic particle color mixing device
The utility model provides a plastic particle color mixing device, a plastic stirring machine and a machine cover. The utility model relates to the technical field of plastic particle color mixing. According to the plastic particle color mixing device, a discontinuous opening and closing mechanism is arranged, coloring agent powder can be placed in a storage hopper, when a plastic stirring machine stirs plastic particles, a motor is started to drive a rotating rod to rotate around a second bearing (22), and the rotating rod can drive a missing gear to rotate; when the tooth section of the missing gear is in contact with the transmission gear, the transmission gear, the transmission rod and the baffle are driven to rotate, at the moment, coloring agent powder falls into the plastic stirring machine through the discharging pipe, and when the tooth section of the missing gear is not in contact with the transmission gear, torsion generated by the torsion spring drives the transmission gear, the transmission rod and the baffle to reset. And the steps are sequentially circulated, so that the effect of discontinuously adding the coloring agent powder is achieved, and the dyeing effect is further improved.
Owner:JIANGXI XINGHUI PLASTIC CO LTD
Improved tool for adjusting the shaped-profile feet of furnishings
A tool for a control element (14) of a height-adjustable foot (13) for controlling furnishings and the like (M), comprising: an engagement or control device (20) and a handle (12) for rotating the engagement or control device (20), the handle (12) including two arms (23), the two arms surrounding the diameter of the height-adjustable foot to hold the tool and the engagement or control device (20) laterally associated with the adjustable foot, the engagement or control device (20) being arranged between the two arms (23) facing each other and engaging with the control element (14) for rotating the adjustable foot, wherein the engagement or control device includes a tooth portion formed by a tooth segment (20), the tooth portion extending and distributed on a circular region (19) of a surface between the two arms (23) of the handle (12), the tooth portion engaging with at least one tooth portion (17, 18) formed circumferentially on the control element (14) of the adjustable foot (13), wherein the teeth of the tooth segment (20) and the teeth of the at least one tooth portion (17, 18) of the control element (14) are asymmetric and angled envelope curved teeth, and the curved teeth follow the circular run of the control element (14).
Owner:LEONARDO
Air spring structure with flexible supporting piston
The invention provides an air spring structure with a flexible supporting piston, which comprises a fluctuating piston and a shock absorber, a buckling tooth section is arranged at the upper part of the fluctuating piston, and a protective cover assembly is sleeved on the shock absorber, and is characterized in that the protective cover assembly comprises a protective cover which is of a cylindrical structure; a flexible supporting sleeve is arranged on the outer circle face of the protective cover in a sleeving mode, and the flexible supporting sleeve is in interference fit with the protective cover. A movable gap is formed between the outer side wall of the flexible supporting sleeve and the inner side wall of the buckling tooth section; a ventilation structure is arranged in the side wall of the buckling tooth section in the axial direction and penetrates through the side wall of the buckling tooth section. The problems that an existing shock absorber protection cover is high in structural brittleness, prone to fatigue failure, prone to causing abrasion to affect the service life of a shock absorber, high in cost and the like are solved.
Owner:CHERY AUTOMOBILE CO LTD
A type of anti-loosening lock nut for wind turbines
This application relates to the field of nut processing design, and provides an anti-loosening locking nut for wind turbines, including a nut body and multiple sliding locking blocks. The inner circumferential surface of the nut body is provided with multiple sliding chambers at intervals, each sliding chamber including two symmetrically arranged and interconnected sliding grooves. The number of sliding locking blocks is matched with the number of sliding grooves, with each sliding locking block correspondingly sliding and installed inside its respective sliding groove. The inner surface of each sliding locking block is provided with threaded tooth segments, and the inner circumferential surface of the nut body is provided with threaded tooth grooves, which are normally aligned with each threaded tooth segment. A hook structure is provided between two sliding locking blocks located in the same sliding chamber to ensure that both sliding locking blocks are stably positioned within the sliding groove. A repulsion structure is also provided between two adjacent sliding locking blocks to force them away from each other. Based on this, excellent anti-loosening effect is achieved after locking, ensuring a stable connection between rotating components.
Owner:NINGBO HAIXIN FASTENERS CO LTD
Flap drive lock assembly, flap assembly, and vehicle
The application discloses a lid driving locking assembly, a lid assembly and a vehicle, and solves the technical problem that an existing external-flap lid is easy to scratch human skin or clothes and cause a safety hazard. The lid driving locking assembly provided by the embodiment of the application comprises a mounting frame, a driven support, a locking mechanism and a driving mechanism. The driven support is slidingly connected to the mounting frame and is provided with a tooth segment. The locking mechanism comprises a first locking part and a second locking part matched with each other. The driving mechanism comprises a restoring part, a driving wheel, a driven cam and a driven gear. The second locking part slides relative to the mounting frame under the driving of the driven cam to be unlocked with the first locking part. The driven support slides relative to the mounting frame under the driving of the driven gear when the first locking part and the second locking part are in the unlocked state to open or close the lid. The application adopts one driving wheel to drive and cooperates with a sliding mode to realize the opening or closing and locking or unlocking of the lid, reduces the safety hazard and saves the space.
Owner:DONGFENG MOTOR GRP