683 results about "Ball joint" patented technology

The invention discloses a spherical pair locking mechanism and a medical instrument, and relates to the field of medical instruments. The ball pair locking mechanism comprises a ball joint and a locking assembly. The locking assembly comprises a transmission structure, an elastic piece, a locking gear and a force application driving piece. The rigid meshing locking mode of the locking gear and the meshing tooth edge of the inner ball head replaces traditional friction braking, locking force reduction and looseness caused by long-term use and abrasion can be avoided, the locking reliability is greatly improved, and the minimally invasive surgery positioning precision is guaranteed; a user can directly drive the transmission structure through the force application driving part to achieve switching between locking and unlocking of the ball joint, the mechanism is kept in a preset locking or unlocking state in a non-operation state by adjusting the locking gear and the meshing tooth edge and providing automatic reset force through the elastic part, manual intervention is reduced, and the rapid operation requirement of an operation scene is met. The mechanism is compact in structural layout, can adapt to the limited space of minimally invasive surgical instruments, and meets the requirements for locking strength and miniaturization.

A dust boot having an open end that includes an embedded mechanical fastener that secures the boot to a ball joint assembly and a ball joint assembly configured to engage with the embedded mechanical fastener.

The invention discloses a compact five-degree-of-freedom teleoperation hand of a series-parallel structure and a control mapping method of the compact five-degree-of-freedom teleoperation hand. The teleoperation hand comprises a base, a wire guiding device, a fixing sleeve, a rotary encoder, a driving arm, a spherical hinge butt joint device, a driven arm, a torsional spring, a movable platform, a front-end operation series connection platform and two angular displacement sensors. The rotary encoder is fixed to the wire guiding device through the fixing sleeve and used for measuring the rotation angle of the driving arm in real time. One end of the driving arm is fixedly connected with a rotor of the rotary encoder, and the other end of the driving arm is hinged with one end of the driven arm; the other end of the driven arm is hinged to the movable platform, and the two angular displacement sensors are used for measuring the pitch angle and the yaw angle of a handle of the front-end operation series platform. The front-end operation series platform is hinged to the movable platform and used for adjusting the posture of the teleoperation hand. The device is simple and compact in structure, low in cost and small in size; through combination of series connection and parallel connection, the rigidity requirement is guaranteed, and meanwhile the flexibility of the device is guaranteed.

A front engine attachment system for an engine having an engine pylon with a nose having a main female clevis and a cylindrical housing, a main rod fastened to the engine by a secondary ball joint connection about a secondary axis, a main shaft realizing a main ball joint connection of the main rod in the main female clevis about a main axis, wherein the main axis and the secondary axis are in the same vertical plane, a hollow outer cylinder with a vertical axis, of which a first end is fastened in the cylindrical housing and of which a second end is mounted so as to be able to move, via an annular linear connection, with respect to the front casing and an inner cylinder threaded and fastened in the outer cylinder.

The invention relates to the technical field of robot control, in particular to a motion control method and device of a parallel 3RRS robot, the parallel 3RRS robot and a medium, and the robot comprises a base platform, a movable platform and three RRS branch chains connecting the base platform and the movable platform. The method comprises the following steps: acquiring target attitude information and target position information of a mobile platform; based on the structure parameters of the RRS branch chain in the zero position state, the target attitude information and the target position information, calculating the center coordinate of a first plane figure formed by the center of the spherical hinge joint of the movable platform; calculating the center coordinate of the spherical hinge joint; projecting the central coordinate of the spherical hinge joint into a second plane figure determined by the first connecting rod of the corresponding branch chain and the Z axis of the coordinate system of the base; solving a target rotation angle of each first rotation joint based on the projection point coordinates; and finally, all joints are driven to enable the movable platform to move to the target pose. Complex space problems are converted into plane geometry solution, so that calculation is simple, and high-precision and high-efficiency real-time control is facilitated.

The application discloses a reinforcing structure of a bolt ball joint, a net rack structure and a reinforcing method. The bolt ball joint comprises a bolt ball and a rod piece symmetrically arranged on both sides of the bolt ball. The reinforcing structure of the bolt ball joint comprises a wing block group and a connecting rod. The wing block group comprises two wing blocks arranged in pairs, and each wing block can be directly connected to one of the rod pieces. The connecting rod is connected between the two wing blocks arranged in pairs. At least part of the wing blocks is provided with a connecting assembly, and the wing blocks are connected to the corresponding connecting rods through the connecting assembly. The reinforcing structure of the bolt ball joint has small connection difficulty, small required operation space and can meet reinforcing requirements.

The application discloses a rotor stability control device and method with a spherical hinge, which mainly comprises a measurer, a controller, an electromagnetic actuator and a spherical hinge bearing support. The method mainly comprises the following steps: real-time monitoring and acquisition of vibration state data of a spherical hinge balance disc during rotation of a rotor; generation of a control signal by the controller according to the monitored and acquired vibration state data; output of an electromagnetic force by the electromagnetic actuator according to the control signal; application of the electromagnetic force to the spherical hinge balance disc, suppression of vibration of the balance disc and adjustment of equivalent angular stiffness, angular damping and angular mass of the spherical hinge bearing support; and application of the equivalent angular stiffness, the angular damping and the angular mass to the rotor through a controllable flexible foundation, so as to realize rotor stability control.

Push-up handle (1), at least having: 1.1. a support plate (2) for placing the push-up handle (1) on a surface, 1.2. a handle unit (3) for supporting a user on the push-up handle (1), wherein 1.3. the handle unit (3) is movably mounted relative to the support plate (2) so that, on the one hand, a rotational movement about an axis of rotation (D) is possible and, on the other hand, the axis of rotation (D) is freely movable about a pivot point within a given solid angle, 1.4. a ball joint (6) which is connected on one side to the support plate (2) and on the other side to the handle unit (3), wherein the ball joint (6) defines the spatial angle in which the free movement of the handle unit (3) is possible, 1.5. a rolling bearing (5) which enables the rotational movement of the handle unit (3), wherein the axis of rotation (D) of the handle unit (3) passes through the longitudinal axis (L) of the ball joint (6) and the pivot point of the ball joint (6), and 1.6. at least one spring (7) is provided which holds the handle unit (3) in a neutral starting position, characterized in that 1.7. a rotation angle limiting device (10) is provided which limits the rotational movement of the handle unit (3) to a certain angular range.

The utility model discloses a novel outer ball joint dust cover which comprises a dust cover body, openings are formed in the dust cover body, the openings are connected through a butt-joint assembly, the novel outer ball joint dust cover is provided with a first special-shaped body, a second special-shaped body, a bolt and a nut, and when the dust cover needs to be rapidly replaced on an outer ball joint, the first special-shaped body, the second special-shaped body, the bolt and the nut can be rapidly replaced. According to the dustproof cover, the dustproof cover body is broken apart to be arranged on the outer side of the outer ball joint in a sleeving mode, then the first special-shaped body and the second special-shaped body are in butt joint, the opening formed in the dustproof cover body is closed through cooperation of the bolt and the nut, and then the dustproof cover is rapidly replaced.

The invention relates to the technical field of speed reducers, and discloses a universal assembly for a rotary speed reducer and the rotary speed reducer, the universal assembly comprises a torque input part, a torque output part and a key pin, the torque input part can rotate relative to a base assembly of the rotary speed reducer, and the torque input part is provided with a mounting cavity; the torque output piece comprises an output shaft and a spherical connecting piece, the spherical connecting piece is arranged at one end of the output shaft in the axial direction of the output shaft and is at least partially arranged in the mounting cavity, two first sliding grooves are formed in the peripheral face of the spherical connecting piece, the two first sliding grooves extend in the outer surface of the spherical connecting piece, and the two second sliding grooves extend in the radial direction of the spherical connecting piece; the projections of the two first sliding grooves coincide with the projection of the axis of the spherical connecting piece. The number of the key pins is two, each key pin is arranged on the inner wall of the mounting cavity, and each key pin is in sliding fit with the corresponding first sliding groove in the length direction of the first sliding groove.

A separable shoulder rest assembly for stringed instruments comprises a base component with receiving apertures and positioning feet, and a removable component with engagement protrusions and keyed apertures for secure attachment in predetermined orientation. An instrument interface assembly includes an elastomeric insert with engagement protrusions and contact pads positioned within a recessed cavity to minimize instrument contact area while providing secure engagement. A lockable ball joint mechanism enables multi-directional rotational adjustment for enhanced positioning flexibility. The separable design enables component customization and replacement while maintaining structural integrity and operational performance.

This invention relates to the field of construction monitoring equipment technology, specifically a settlement observation instrument for roadbed safety construction. The instrument includes a string strain gauge and a differential pressure static level. The differential pressure static level has connecting pipes on both its air and water inlets, which are fixed to a conduit support. The signal line of the string strain gauge is fixed within the conduit support. The two ends of the string strain gauge are fixed to a fixed end and a floating end, respectively. The floating end includes a movable end seat fixedly fitted onto one end of the string strain gauge. This invention allows adjustment of the floating end's height position through a sliding fit between the upper ball joint and the rotating sleeve. The orientation and tilt angle of the floating end can be freely adjusted through the universal joint between the upper ball joint and the upper spherical shell, and between the lower ball joint and the lower spherical shell. During on-site installation, adjusting the floating end position ensures that the string strain gauge's measuring rod remains in a natural, unloaded, and unstressed state, thus avoiding measurement errors introduced by initial stress and effectively improving the accuracy and stability of roadbed settlement and tilt monitoring.

A rear view assembly includes a mount having a spherical joint portion; and a main unit comprising a housing having a socket receiving the ball joint portion such that the main unit is articulatable on the mount by rotating about three vertical axes. First and second magnets are positioned within the housing and spaced apart to define a rotationally asymmetric combined magnetic field. A first sensor and a second sensor are positioned spaced within the housing so as to be collectively operatively associated with the combined magnetic field, where articulation of the primary unit on the mount causes movement of the first sensor and the second sensor relative to the first magnet and the second magnet. A processor determines a rotational position of the primary unit about the three axes with respect to the mount based on a combination of the magnetic field information from the first sensor and the second sensor.

This invention discloses a shock-absorbing and pressure-reducing permeable concrete pile reinforced with recycled tires and its construction process. The pile structure comprises a pile body formed by vertically connecting several precast permeable concrete columns; compressible rubber blocks containing permeable holes and ball joints are fixed between adjacent permeable concrete columns; a layer of non-woven fabric is wrapped around the permeable concrete pile to prevent soil from clogging the concrete holes; and a ring-shaped mesh skeleton structure made of recycled tire strips is used to wrap and fix the non-woven fabric around the pile. This invention, by comprehensively utilizing the permeable concrete columns, the ring-shaped mesh skeleton structure, and the compressible rubber blocks containing permeable holes and ball joints, can achieve pile stability under small seismic loads, prevent pile breakage under large seismic loads, and allow the pile to quickly return to its original position after the seismic load disappears, thus ensuring a comprehensive application effect of "unmoved by small earthquakes, unyielding in large earthquakes, and self-repairing after earthquakes."

A drilling apparatus comprising a top body that extends horizontally, a top socket configured underneath the top body to allow for multidirectional movement, and a ball joint positioned beneath the top socket. This ball joint is in contact with the top socket and enables 180-degree horizontal rotation and 90-degree vertical tilt. Additionally, a bottom socket is configured underneath the ball joint to provide stability. The apparatus features a motor connected to a rotary output and includes a trigger switch or button located on a vertically aligned handle. An integrated stud finder, activated by a detachable accessory, allows users to quickly locate studs behind walls before drilling. This apparatus is configured to enhance maneuverability and user comfort, for use in a variety of professional and personal home improvement settings.

The invention discloses an arch foot device for shed type truss sliding construction and a sliding construction method, belongs to the technical field of truss sliding construction, and solves the problem that an existing arch foot support is not suitable for sliding construction. The device specifically comprises an arch foot support, the top of the arch foot support supports a truss structure, and the bottom of the arch foot support is detachably connected to a sliding insert panel; the bottom of the sliding embedded plate is slidably connected with a sliding rail which is fixed in the concrete foundation. In the sliding construction method, in the sliding construction stage of the truss structure, the sliding panel moves along the sliding rail to drive the arch foot support and the truss structure to slide; a spherical hinge support is not used in the sliding construction stage, and the structural stability is relatively high; and after the sliding construction is finished, the sliding panel and the sliding rail can be directly detached and the spherical hinge support can be replaced after the truss structure is supported by the jack, so that the construction efficiency is high. After the spherical hinge support is replaced, the arch foot support can be applied to the normal use stage of the truss structure, the structure does not need to be modified too much, and construction is efficient, convenient and fast.

The application discloses a prefabricated steel box girder hoisting linear control system, which comprises a steel box girder tower section base, a hoisting device, a double-hoisting-arm multi-direction adjusting hoist and a controller; the hoisting device comprises a cable hoist driving mechanism, the double-hoisting-arm multi-direction adjusting hoist is connected with the cable hoist driving mechanism and driven to move up and down by the cable hoist driving mechanism; the double-hoisting-arm multi-direction adjusting hoist comprises a first hoisting arm, a second hoisting arm, a first driving rod, a second driving rod and a central ball joint. The application is applied to the steel box girder hoisting construction system through the structural arrangement of the double-hoisting-arm multi-direction adjusting hoist, the steel box girder tower section can be adjusted in the hoisting process, the installation precision of the steel box girder tower section is controlled, the attitude of the steel box girder tower section is basically consistent with the design attitude, the linear control of in-site vertical splicing detection and on-site installation of the tower section steel box girder can be applicable, the workload of air adjustment is reduced, and the linear precision and construction quality of the overall structure are ensured.

The utility model discloses a field maneuvering assembly platform for protective equipment. Independent height adjusting mechanisms are arranged at the four corners of the frame-shaped supporting frame and comprise lead screws, hand wheels and the like. The lead screw penetrates through the two supports through threads, the lower end of the lead screw is connected with the supporting legs through the universal balls, and the device can adapt to the uneven ground. The hand wheel is provided with an operation part to facilitate adjustment. The height of the frame-shaped support is larger than or equal to 10 cm, and an anti-rotation hole is formed in a top plate and can lock the lead screw The hand wheel can be operated by adopting an F wrench, and can also be designed into a magnetic built-in bubble type gradienter. The platform solves the problem that a field equipment installation platform needs to be flexibly adjusted, can adapt to complex terrains, ensures stable installation of protection equipment, and is convenient to operate, high in safety and suitable for field protection equipment assembly work.

This invention relates to the field of glass production testing technology, specifically disclosing a glass cold bending ultimate failure test device and method. The device includes a worktable and four identical cold bending loading units. Each unit integrates a planar displacement structure with horizontal displacement capability, a liftable and directional adjustable support structure, and a pressure head connected by a ball joint. During testing, the planar displacement structure of each unit is first adjusted to accommodate glass specimens of different sizes. Then, the support structures of three units form an L-shaped support surface, and their pressure heads press against corresponding corner points on the upper part of the specimen to establish stable constraints. Finally, the pressure head of the fourth unit applies a concentrated load to the unconstrained corner points, while automatically monitoring the load and displacement until the specimen fails. This invention, through modular and automated design, achieves high versatility of the device, high testing accuracy, and high operational safety, effectively improving testing efficiency and data reliability.

A novel automotive suspension control arm includes a control arm body. The upper and lower ends of the control arm body are respectively connected and fixed to a ball joint pin assembly and a bushing assembly. The middle section of the control arm body is connected and fixed to a central bushing assembly. The control arm body is an integral arc-shaped hydroformed tubular component. The height of the tubular body at both ends is less than the height of the middle section. The cross-section of the end connected to the bushing assembly is a variable cross-section, wider at both ends and thinner in the middle. The control arm body is manufactured using bending, shrinking, pre-forming, internal high-pressure forming, and laser cutting processes, resulting in a structure different from traditional stamping and welding. This control arm product offers stable dimensional accuracy, a simple manufacturing process, and solves the problem of ensuring welding gap in stamping and welding structures.

This utility model relates to a prone arm support for spinal surgery; it includes an arm support plate, a clamping assembly, an adjusting assembly, and a rotating assembly. The clamping assembly has a clamping groove on the right side wall of the clamping seat to accommodate the operating table's built-in arm support plate. The clamping groove extends to the front and rear end faces of the clamping seat. A retaining platform extends downward from the upper right edge of the groove. The clamping seat also has clamping holes that penetrate the upper and lower end faces of the clamping seat. The upper end of the clamping plate of the adjusting assembly penetrates the clamping hole of the clamping seat, and the lower end of the clamping plate is fixedly connected to the end of a horizontal bar. The horizontal bar is connected to a vertical bar. The outer shell of the universal joint of the rotating assembly is fixedly connected to the upper end of the vertical bar, and the ball joint head is fixedly connected to the arm support plate. This design solves the problem of the patient's arm abduction angle exceeding 90 degrees in the prone position, while also avoiding interference with the surgeon's operation.

This utility model belongs to the field of control arm technology and discloses an impact-resistant control arm, including a reinforcing strip. The front and rear ends of the reinforcing strip are respectively connected to a ball joint seat and a front bushing sleeve. A control arm body is fixedly sleeved between the outer walls of the reinforcing strip, the ball joint seat, and the front bushing sleeve. Multiple first reinforcing posts are fixedly inserted side-by-side at the top of the reinforcing strip, and multiple second reinforcing posts are fixedly inserted side-by-side at the side walls of the reinforcing strip, with the first and second reinforcing posts staggered. A connecting block is connected to the right end of the control arm body, and a rear bushing sleeve is integrally formed at the right end of the connecting block. This solution solves the problem that while existing equipment improves its impact resistance through a cross-structure, the structure used to strengthen it is relatively weak, resulting in insufficient improvement in impact resistance.

This application relates to a bending-resistant control arm assembly, specifically in the field of automotive control arm technology. The assembly includes a control arm body with three ends. Bushings are installed at the first and second ends of the control arm body, and a ball joint is installed at the third end. The control arm body includes an upper plate and a lower plate, which are fixed together by welding. A hollow space exists between the upper and lower plates. The middle of the upper plate is bent downwards to form a groove, within which two vertical plates are welded and fixed. Both ends of the vertical plates are located on the surface of the upper plate outside the groove and are welded and fixed to the surface of the upper plate. This application significantly strengthens the middle section of the upper plate through the design of the groove and the two vertical plates, improving bending resistance. Most of the vertical plates are located within the groove, avoiding excessive protrusion from the outer surface of the upper plate and minimizing interference with other vehicle structures. A reinforcing sleeve is used to specifically strengthen one arm of the control arm body, increasing strength and preventing deformation.

The invention relates to an angle-adjustable tubular column mechanism and a steer-by-wire system. The tubular column mechanism comprises a fixing frame which is fixed relative to the frame and is provided with a roller path; the tubular column shell comprises a first position and a second position, the axial distance between the first position and the second position is fixed, and the tubular column shell is pivotally connected with the fixing frame around a pivoting axis at the first position, so that the second position is close to or far away from the fixing frame; the screw rod is rotatably arranged at a second position of the tubular column shell; the ball joint assembly is arranged on the lead screw in a threaded fit and sleeving mode, the ball joint assembly is located in the roller path, and the lead screw rotates to drive the ball joint assembly to move relative to the lead screw and move along the roller path so as to push or pull the second position of the tubular column shell to be away from or close to the fixing frame, and the pivoting included angle between the tubular column shell and the fixing frame is adjusted. The lead screw rotates to drive the ball joint assembly to rotate and slide in the roller path, so that the far end of the tubular column shell moves, the pivoting angle of the tubular column shell and the fixing frame is changed, and flexible angle adjustment is achieved.

A suspension system and a vehicle. The suspension system comprises a plurality of first suspension devices for fixedly connecting a power train of the vehicle to a load-bearing device of the vehicle, and further comprises an auxiliary suspension device. The auxiliary suspension device comprises a first connecting mechanism and a second connecting mechanism, which are respectively configured to connect to the power train and the load-bearing device. The first connecting mechanism comprises a ball joint, and the second connecting mechanism comprises a first cavity. The ball joint is movably arranged in the first cavity; the first cavity is configured to form a limiting space for limiting movement of the ball joint in a plurality of directions, and the first cavity is provided with a constricted structure to prevent the ball joint from disengaging. The outer surface of the ball joint and / or the surface of the first cavity are made of elastic material. The present application can be applied to intelligent or new energy vehicles, and can prevent failure of suspension points in the suspension system under extreme operating conditions, without introducing additional noise, vibration, and assembly problems.

To eliminate negative camber generated by lowering a car height without applying large remodeling to a car body.SOLUTION: The vehicle suspension member 1 includes a fastened portion 2 that is fastened to an upper side of a vehicle-width-direction front end portion of the lower arm 120, and a ball joint support portion 3 that extends from the fastened portion 2 toward the vehicle-width-direction outer side and has a fitting hole 3a into which a shaft portion of a ball stud 192 of a ball joint 190 that supports a lower portion of a knuckle 130 of the suspension device 100 is fitted. The position of the fitting hole 3a in the vehicle-width direction is set such that the vehicle-width-direction inner portion of the socket 193 of the ball joint 190 overlaps the vehicle-width-direction front end portion of the lower arm 120 in a plan view.SELECTED DRAWING: Figure 1

This aircraft turbomachine suspension system comprises a set of connecting rods (25), each including connecting means (26, 27) for attaching the system between a turbomachine housing (22, 23) and an aircraft component. Each connecting rod (25) includes at one end a ball joint (26) and at the opposite end a ball joint (27) and a sliding pivot joint (28). Figure for the abbreviation: Fig 4

The invention discloses a shield segment vacuum suction cup assembling system and method. The shield segment vacuum suction cup assembling system comprises a segment assembly; the vacuum suction cup device comprises a vacuum suction cup and a supporting arm, and the supporting arm and the vacuum suction cup are connected through a spherical hinge to achieve multidirectional adjustment; sealing strips are attached to the periphery of the lower surface of the vacuum suction cup and used for forming a sealed space with the inner surface of the pipe piece during pressing. The mechanical clamping assembly comprises a first oil cylinder, a clamping device located below the first oil cylinder and an energy storage device. The clamping device is configured to clamp a hoisting head on the duct piece and drive the duct piece to move upwards so as to press the sealing strip; the vacuum generation assembly comprises a vacuum pump and a vacuum box. The duct piece is good in external force bearing effect, and the problem that the top sealing block is prone to falling off due to external force is effectively solved. The inner surface area of each segment is basically the same, and the segment sucker is designed into a large vacuum adsorption area and a large clamping device, so that the splicing safety of the segment sucker is improved, and the risk that the segment falls off when the splicing machine is powered off is reduced.

The present invention relates to a brake actuation device (2) for a motor vehicle, comprising a brake booster (1) having a movable actuating rod (3), and an input rod (5) which is connectable to or connected to a brake pedal (6) and coupled to the actuating rod (3) by a ball joint (9) so that the input rod (5) is pivotable relative to the actuating rod (3), wherein the ball joint (9) has a spherical socket (10) and a spherical projection (11) mounted in the spherical socket (10). It is provided that at least one radial recess (17) is formed in the spherical socket (10) in which a radial projection (16) of the spherical projection (11) with a predetermined clearance for limiting the pivoting range of the ball joint (9) is located.