1770 results about "Spring force" patented technology

The invention relates to the technical field of photography auxiliary equipment, in particular to a trigger type locking device and a photography suive.The trigger type locking device comprises a baffle, a shell, a locking piece and a locking piece, and the locking piece comprises an operation part and a locking part; when the quick-mounting plate is mounted in the clamping space at the top of the shell, the quick-mounting plate presses the locking piece downwards to be separated from the locking part, the locking piece rotates quickly under the action of spring force, the inclined surface of the locking part is quickly inserted between the locking piece and the inner wall of the shell, the locking piece is promoted to swing to automatically clamp the quick-mounting plate, quick mounting is completed, and meanwhile, the quick-mounting plate can be automatically clamped through manual intervention. The operation part is shifted to perform secondary reinforcing and locking on the locking piece; and when the operation part is manually shifted to rotate anticlockwise, the locking part is separated from the locking piece, and the locking piece is in an unlocking state, so that the quick mounting device can automatically or manually lock or unlock the quick mounting plate quickly, and the problems that in the prior art, locking or unlocking of the quick mounting plate is tedious in operation and low in efficiency are solved.

A suspension stabilizer and method are described which may be attached to a bike having front fork suspension to improve handling and reduce rider fatigue. The suspension stabilizer may include a counterweight, a spring assembly and a guide assembly. The spring assembly may be arranged to provide a spring force between the counterweight and the guide assembly to resist linear motion of the counterweight along a guide assembly axis. The counterweight and spring assembly may have a natural motion frequency of 3 to 15 Hertz and may be based on one or more characteristics of the front fork suspension.

The utility model provides quartz boat surface grinding and polishing equipment, which relates to the technical field of grinding and polishing and comprises a grinding and polishing component, a mounting component is arranged at the top of the grinding and polishing component, a dust collection component is arranged at one end of the grinding and polishing component, and the grinding and polishing component comprises a grinding and polishing box. The mounting assembly comprises a grinding motor, and a hydraulic lifting column is mounted at the top of the grinding motor. The pull rod is pulled outwards, so that the spring is stressed and compressed, then the mounting sleeve is arranged on the outer side of the rotating shaft in a sleeving mode, the mounting strip is promoted to be installed in the limiting groove in a sliding mode, the grinding and polishing head is conveniently installed, then the pull rod is loosened, and the spring drives one end of the pull rod to be installed in the rotating shaft through the elasticity of the spring; and limiting is facilitated, operation is convenient and rapid, the grinding and polishing head can be conveniently maintained and replaced at any time, operation convenience is improved, the equipment downtime is shortened, and working efficiency is improved.

A mount assembly for attaching a firearm accessory to a muzzle of a firearm that promotes a more secure connection. The mounting assembly includes a front collar and a rear collar that are operable to clamp the mount assembly onto the muzzle. A detent ring mounted on the front collar yieldably biased by a spring against the rear collar to resist relative rotation of the front and rear collars. The mounting assembly is constructed so that the spring force applied by the spring does not continually increase as the front and rear collars move to clamp onto the muzzle. Detent springs used to yieldably hold the front and rear collars against relative rotation can be weaker than the main spring, which further reduces unwanted forces working against clamping of the mount assembly onto the muzzle. The mount assembly is also constructed to inhibit carbon lock.

Provided is a compressible cam lever that has a section that can be compressed by external force. When the external force is released, elastic force within the cam lever causes the section to return back to its original position creating a spring force. The compressible cam lever may be used as part of a handle for opening and closing a clamp that is part of a tripod or other piece of equipment which can hold rails for firearms, sights, scopes, parts, and the like, therein. The compressible cam lever may include a handle, a round-shaped section comprising a flexible curved surface that curves back towards the handle and protrudes outward, and an opening disposed between an end of the flexible curved surface and the handle.

The invention discloses a torsion spring automatic injector dose adjustment positive and negative rotation sound production structure, which comprises a knob, a clutch tooth and a jumping tooth, the knob is sleeved on the periphery of the clutch tooth, the upper end face of the clutch tooth is provided with an inner ratchet ring, the knob is internally provided with an inner ring, the upper end face of the inner ring is provided with an outer ratchet ring, and the outer ratchet ring is provided with an outer ratchet ring. The jumping teeth are movably installed in the knob, the jumping teeth are provided with connecting keys or connecting ratchets, the lower end face of each jumping tooth is provided with an inner tooth block and an outer tooth block which are meshed with the inner ratchet ring and the outer ratchet ring respectively, and a plurality of rotating clamping grooves are further formed in the knob. A plurality of rotary clamping blocks clamped into the rotary clamping grooves respectively are arranged on the side edges of the jumping teeth, and the rotary clamping blocks can rotate by a certain angle in the rotary clamping grooves. According to the design, an axial tooth jumping sounding structure is adopted, when the dosage is adjusted, the adjusting knob is rotated clockwise to the desired dosage, the adjusting knob is rotated anticlockwise to return to the zero position, and jumping sounding can be achieved through meshing of spring force in the forward and reverse rotation process.

The invention relates to disc spring high-pressure sorting equipment, and relates to the technical field of disc spring sorting, the disc spring high-pressure sorting equipment comprises a rack and a discharging device, the rack is provided with a rotating device, the rotating device comprises a rotating disc and a driving mechanism for driving the rotating disc to rotate, the discharging device is used for placing disc springs on the rotating disc, and the rack is further provided with a pressing device; the number of the downward pressing devices is at least one, and the downward pressing devices are used for downward pressing the disc springs on the rotating disc. The method has the advantage of being good in product consistency.

The invention relates to a spring-loaded clamping connection having a clamping spring and a busbar, wherein an electrical conductor can be clamped to the busbar by means of a clamping leg of the clamping spring. The clamping legs are displaceable between a pre-tightening position and a clamping position. The invention further relates to a connection terminal having such a spring-loaded clamping connection and to a guide sleeve for a spring-loaded clamping connection.

The invention relates to a freewheel device (1) for a switchable clutch arrangement (2), the freewheel device comprising two freewheel components (3, 4) that can be axially coupled to one another via an axially acting coupling device (7), wherein the coupling device, upon relative rotation between the freewheel components in a first rotational direction (8), connects the two freewheel components to one another so that they rotate together, and, upon relative rotation in a second rotational direction (9) opposite to the first rotational direction, allows the freewheel components to rotate relative to one another, wherein the coupling device has coupling elements (11) to which a spring force is applied by associated spring elements (12), wherein each spring element fixes the coupling element to the first freewheel component (3) and defines a tilting axis (28) about which the coupling element can pivot against the spring force, wherein the spring element comprises at least one first spring portion (18) which rests against the first freewheel component and extends rectilinearly parallel to a first longitudinal axis (19), and a second spring portion (20) which projects at an angle from the first spring portion and is resiliently elastically supported on the coupling element, wherein the spring element is made of sheet metal, wherein the first spring portion (18) is a rectilinearly extending and substantially planar first sheet metal portion (21), and the second spring portion (20) is a rectilinearly extending and substantially planar second sheet metal portion (22).

The invention belongs to the technical field of pile drivers, and discloses a foundation pile driver capable of adapting to complex terrains, which comprises a base, and further comprises cloth crawler belts, a pile driver, a driving device and a driving device, the inclined cylinders are symmetrically arranged on the two sides of the top of the base, and piling assemblies are hinged to the top ends of the inclined cylinders; through cooperation of ground anchors, springs, tooth blocks, tooth plates and other structures, supporting legs at the four corners of the pile driver are conveniently fixed according to the height of a complex terrain, the supporting legs drive the ground anchors to rapidly move downwards under the action of the elastic force of the springs, and then the ground anchors are clamped into soil; according to the pile driver, the inclined blocks are arranged on the two tooth plates, so that the inclined blocks extrude the two tooth blocks to be clamped into the tooth plates, the positions of the supporting legs are fixed after the supporting legs move downwards, then the same steps are carried out on the other three positioning assemblies in sequence, the other three supporting legs are clamped into soil of different heights, and the supporting effect of the pile driver on the complex terrain is achieved.

The invention relates to a conductor connection terminal with - an insulating housing having a conductor entry opening and an actuation opening, - a spring-loaded terminal connection in the insulating housing, which has a busbar and a clamping spring, which has a clamping leg with a clamping edge for clamping an electrical conductor to the busbar, a contact leg for supporting the clamping spring, and a spring arch that connects the contact leg to the clamping leg, and - an actuating element which is movably mounted in the actuating opening and is designed to pivot the clamping leg against the spring force in the direction of the contact leg into an open position. Conductor connection terminals with spring-loaded terminals are used to connect an electrical conductor to a terminal point formed between the clamping leg of a spring clamp and a busbar. To connect the electrical conductor, the clamping spring is pushed away from the busbar by the electrical conductor in a direct plug-in connection, counteracting the force of the clamping spring. This is possible for rigid conductors, but not for stranded or multi-wire conductors.

The invention relates to a spring-loaded terminal connection for connecting an electrical conductor by means of spring force. The spring-loaded terminal connection comprises at least one busbar and a clamping spring having a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar. The spring-loaded terminal connection also comprises a retaining element formed integrally with the clamping spring and configured to hold the clamping leg in an open position. The invention also relates to a conductor terminal having such a spring-loaded terminal connection.

An energy return device for a midsole of a shoe comprises a resilient foam or matrix structure, such as a domed disk, around a cavity. The resilient structure is arranged to collapse into the cavity under foot strike pressure. The structure may initially resist the pressure primarily by compression forces directed around the cavity. As the cavity collapses these forces may provide decreasing vertical spring rate as the structure bends or as the forces become less vertical, causing the structure to stay more compressed through the midstride and energy return to be delayed until the user has moved further forward in their stance. At full collapse the material of the structure may resist further downward force of the user by direct compression. A lateral expansion limiter may resist lateral expansion to increase vertical force supplied by the compression forces around the cavity and reduce interference with other components. A support structure may help guide the collapse and increase spring force.

Spring-loaded terminal connection for connecting an electrical conductor (9) by means of spring force, wherein the spring-loaded terminal connection has at least one busbar (3) and a clamping spring (4) having a clamping leg (43) with a clamping edge (46) for clamping an electrical conductor (9) to a contact section (31) of the busbar (3), and having a holding element (5) designed to hold the clamping leg (43) in an open position, wherein the spring-loaded terminal connection has at least one actuating element (7) for transferring the clamping leg (43) into the open position by manually actuating the actuating element (7), characterized in that the actuating element (7) is designed as a combined push-pull actuating element having at least one push section (72) and one pull section (74),wherein a pressure actuation force applied by the user to a manual actuation surface (70) of the actuating element (7) is transmitted as a pressure force in the pressure section (72), is deflected into a tensile force at a connection point (73) of the tension section (74) with the pressure section (72), and is transmitted as a tensile force to the clamping leg (43) in the tension section (74).

This application relates to an injector device for delivery of a medicament, particularly to an auto-injector device. According to a first aspect of this disclosure, there is described an injection device comprising: an injection device body; a needle shroud retractable into the injection device body comprising a shroud pin; a control spring coupled to the needle shroud and biased to cause the needle shroud to be at least partially extended from the injection device body in an initial position; and a collar rotatable with respect to the injection device body and comprising a cam track engageable with the shroud pin; a hold detent mechanism coupled to the cam track of the collar, wherein the hold detent mechanism is configured to: activate, when the needle shroud is retracted from a first position on the cam track into the injection device body to a hold position on the cam track, by engaging the shroud pin thereby creating a hold detent force opposite a control spring force caused by compression of the control spring during said retraction of needle shroud to said hold position; and deactivate, when the needle shroud is extracted from the hold position on the cam track subsequent to the retraction towards a second position on the cam track, by disengaging the shroud pin thereby releasing the hold detent force and enable the needle shroud to extend from the injection device body to the second position on the cam track; and wherein the hold detent mechanism further comprises a non-return surface configured to, subsequent to the extension of the needle shroud, prevent further retraction of the needle shroud into the injection device body along the cam track towards the hold position.

A load-compensating device for a lifting application with an object to be lifted or lowered includes a movable platform, wherein the platform carries the object and, for purposes of load compensation, the platform is supported by at least one spring element that acts on a spreading unit which, in order to achieve spreading, transfers a spring force of the spring element into a scissors arrangement, where, by virtue of the scissors arrangement, the spring force results in a lifting force that produces a lifting action on the platform, and where a substantially constant lifting force is provided over a substantial lifting distance of the platform by the lifting geometry formed via the spreading unit and the scissors arrangement.

The invention relates to the technical field of mechanical hydraulic pressure, in particular to a low-pulsation plunger pump with a dynamic variable flow distribution pre-compression angle, the low-pulsation plunger pump with the dynamic variable flow distribution pre-compression angle comprises a plunger pump, a shell and an adjusting piece, the plunger pump is fixedly connected with the shell, an oil distribution cover is fixedly connected in the shell, the oil distribution cover is rotatably connected with a flow distribution plate, and the flow distribution plate is fixedly connected with the shell. A blocking piece is fixedly connected to the surface of the valve plate, a groove is formed in the surface of the oil distribution cover, a push rod is slidably connected into the groove, the blocking piece is connected with the push rod in an inserted mode, the push rod is elastically connected with a limiting plate, the limiting plate is in threaded connection with the adjusting piece through a screw rod, and an oil return opening is formed in the groove and communicated with the interior of the shell. The valve plate has the beneficial effects that in a dynamic balance state, the elastic force of the spring and the hydraulic force are balanced in real time, so that the pre-compression angle is automatically adjusted along with the pressure of the oil discharge kidney-shaped hole, and the pressure transition process is always in an optimal state, so that the valve plate can adapt to the working condition change, and the flow pulsation is effectively inhibited and optimized.

The invention discloses a metal hose quick-plug connector, which relates to the technical field of pipeline connection, and comprises a male connector and a female connector, at least three clamping pins which are arranged in a circumferential array around the male connector are fixed outside the male connector, a clamping ring which is rotatably clamped with the clamping pins is fixed outside the female connector, and a sealing ring is arranged between the male connector and the female connector. The locking mechanism comprises a sleeve connected to the interior of the female connector in a sliding mode, a positioning pipe is fixed to the male connector, the steel ball clamps the sleeve under the action of the elastic force of the spring, and rotation of the sleeve and the female connector relative to the male connector can be limited within the preset working torque range; therefore, excessive abrasion of an internal sealing ring caused by frequent rotation of the male connector and the female connector is avoided, sealing stability of the quick-plug connector is guaranteed, meanwhile, when torsional force borne by the male connector and the female connector exceeds a preset range, the male connector and the female connector can release torsional stress through relative rotation, and the metal hose is effectively prevented from being damaged due to excessive torsion.

The invention discloses an automatic system for brake spring force detection, which relates to the technical field of mechanical engineering and automatic control, and is characterized in that a multi-physics field coupling measurement module adopts a nested force sensor group (a strain gauge and piezoelectric quartz compound) and non-contact displacement measurement, and is combined with a thermal expansion compensation ring to correct temperature influence in real time; the environmental interference suppression module eliminates electromagnetic and thermal interference through an electromagnetic shielding cavity and a temperature control platform; the dynamic error compensation engine realizes drift prediction and physical field fusion by using six-dimensional attitude sensing and edge calculation (LSTM + GPR double-stage model); the self-calibration executing mechanism completes nanoscale positioning and micro-force control based on air flotation driving and the bionic clamping jaw. The method solves the problem of measurement misalignment caused by environmental interference, material thermal deformation and clamping errors in traditional detection, and is suitable for high-precision spring force detection under complex working conditions.

The invention relates to the technical field of flame-retardant rubber sealing element trimming, and discloses trimming equipment for flame-retardant rubber sealing element processing and a using method of the trimming equipment. A discharging assembly for separating a plurality of flame-retardant rubber sealing elements is arranged on the rear side of the top of a box body; a piston rod of a second air cylinder extends, in the process, a second guide column is reset under the action of second telescopic spring force to drive a supporting frame to move, the supporting frame is made to be separated from the bottom of the flame-retardant rubber sealing piece, and at the moment, a first guide column is pushed to drive a partition plate to move; when the supporting frame is separated from the lower portion of the bottom flame-retardant rubber sealing piece, the bottom flame-retardant rubber sealing piece moves to the upper portion of the clamp on the outer side of the sleeve column, discharging of the flame-retardant rubber sealing pieces can be completed, manual discharging by workers is not needed, and the discharging efficiency is improved. And the working efficiency of trimming is effectively improved, and meanwhile, the labor intensity of workers is reduced.

An aircraft landing gear shock absorber strut including an outer cylinder having a bore defining an opening; an inner cylinder having a first end region movably coupled within the bore and a second end region which projects out of the opening. The inner cylinder being arranged to move along a longitudinal axis of the bore between a first condition and a second condition and is biased by a spring force to assume the second condition. A mechanical outstop is arranged to engage an abutment surface of the inner cylinder to limit extension of the shock absorber strut; and a rotatable member drives the out stop axially to move the inner cylinder from the second condition towards the first condition. The rotatable member is arranged such that the spring force cannot rotate the rotatable member to allow the shock absorber strut to extend.

The application discloses a high-precision Venturi valve characteristic nonlinear compression spring preparation method and a compression spring, and realizes accurate matching of compression spring performance and nonlinear flow regulation characteristics of the Venturi valve through multi-step optimization design. The method comprises the following steps: establishing a Venturi valve curve coordinate system, calculating a flow area, calculating an external force work, fitting a spring performance curve, determining a force value range, designing a spring gradual change process, heat treatment stress relief, testing and correction, ensuring that the spring performance meets the design requirements, and completing final standardization. The application provides a calculation method for force change law of a valve core of a Venturi valve and the valve core under different valve front static pressures, obtains a theoretical force curve, calculates compression and spring force compensation required by a damping structure of the valve core of the Venturi valve, and through forward development design and production, improves the independence of air volume and pressure of the Venturi valve and the air volume control precision.

The invention relates to a conductor terminal with an insulating housing which has at least one conductor entry opening for receiving an electrical conductor in a conductor entry direction, wherein at least one spring-loaded clamping connection is arranged in the insulating housing which is designed for connecting an electrical conductor by means of spring force, wherein the spring-loaded clamping connection has at least one busbar and a clamping spring which has a clamping leg with a clamping edge for clamping an electrical conductor at a clamping point on a contact section of the busbar, and with a retaining element which can be formed integrally with the clamping spring and is designed to hold the clamping leg in an open position.

The invention relates to the technical field of rockets, in particular to a supporting device for a rocket and a transferring and erecting integrated launching vehicle. The supporting device comprises an erecting arm body and a plurality of auxiliary supporting mechanisms. The auxiliary supporting mechanism comprises a supporting bracket, a disc spring force limiter and at least two linear guide rails. The pre-pressure of the disc spring force limiter is adjustable, so that the rigidity of the supporting bracket is matched with the rigidity of the rocket body; the linear guide rails are arranged on the two sides of the supporting bracket respectively. According to the supporting device for the rocket and the transferring and erecting integrated launching vehicle, the supporting bracket is kept to be in a balanced state through the linear guide rail, the floating function is achieved, and the clamping stagnation phenomenon is prevented; force limiting supporting is achieved by adjusting the pre-pressure of the disc spring force limiter, the rigidity of the supporting bracket is made to be close to the rigidity of a rocket body, and therefore it is guaranteed that the additional bending moment cross section load generated by the erecting arm to the rocket is within the allowable range.

The invention relates to the field of computer numerical calculation, in particular to an optimal design method of a special disc spring for an ultrasonic motor, which comprises the following steps of: firstly, in finite element software, performing parametric modeling on a disc spring stress model, setting according to related material attributes, and setting and constraining the characteristics of a contact surface; boundary conditions are set according to parameter characteristics of the disc spring, then grids are divided and submitted for finite element software calculation, and initial data are collected; and then modifying parameters, running a Python script to control finite element software to perform batch operation, and outputting a disc spring characteristic curve. And an optimization algorithm model combining a particle swarm optimization (PSO) and a convolutional neural network (CNN) is constructed, the optimization algorithm model realizes calculation design optimization through iterative interaction, and optimal structure parameters and characteristic curves are obtained. According to the method, the structure parameters of the disc spring are calculated, designed and optimized, a convenient and efficient calculation mode is provided for the ultrasonic motor disc spring, and the specific working condition requirements of the ultrasonic motor are met.

A biasing member for use in reciprocating dispenser pumps is contemplated. The member is made completely of polymeric materials and is suitable as a direct replacement for metallic coil springs. The biasing member includes spiral shape defined by inner and outer helix traces, with a series of perforations provided along one or both of those traces. These perforations, in conjunction with thinned channels, the size and shape of holes, and the size and shape of apertures, all cooperate to allow for a spring with sufficient resilience and greater spring force in comparison conventional, all-polymer biasing members.

The utility model provides an onboard valve testing device, which belongs to the technical field of aviation equipment and comprises a pipe nozzle, a spring, a shell, an ejector rod valve and the like, one end of the shell is inserted into an inner hole of an onboard valve outer sleeve nut to realize quick connection of the testing device and the onboard valve, a stepped hole is arranged in the shell, the ejector rod valve penetrates into the stepped hole, and the pipe nozzle is mounted at the other end of the shell. And the spring is sleeved on the mandril valve and is pressed between the mandril valve and the inner hole of the shell to provide spring force for the mandril valve. After the experiment device is installed on the onboard valve, the ejector rod valve ejects the onboard valve open under the action of the spring force, and after the experiment device is pulled out, the onboard valve is closed under the action of the spring of the onboard valve. According to the utility model, the docking flexibility test of the onboard valve can be realized, so that the test meets the technical requirements.

The invention discloses a spring pantograph force adjusting system which comprises a bottom frame, a spring system, a force adjusting mechanism and an electric drive system. The bottom frame is of a frame welding structure, located at the bottom of the pantograph and used for supporting connecting components, the spring system is used for driving the lower arm to enable the pantograph to rise, and the force adjusting mechanism and the electric drive system are used for adjusting force. According to the spring pantograph force adjusting system, a force adjusting mechanism, an electric drive system and a spring drive system are integrally designed at the position of a pantograph underframe, the purpose that the spring force is adjustable in the pantograph running process is achieved, and the problems that the spring force of a high-speed spring pantograph cannot be adjusted, and the pantograph net following performance under high-speed running cannot be guaranteed are solved. And the high-speed operation current collection performance of the spring pantograph is ensured.

The invention discloses a foot game controller which comprises a six-end shaft, and the six-end shaft comprises a left shaft, a right shaft, a front shaft and a rear shaft. A pedal is arranged above the six-end shaft, a pair of upper supporting frames are arranged on the lower surface of the pedal, first connecting rods are arranged at the two ends of the left shaft and the right shaft, second connecting rods are hinged to the ends of the first connecting rods and connected with compression spring force application rods, and compression spring devices are arranged at the ends of the compression spring force application rods. A second potentiometer is arranged on one side of the upper support frame; a lower plate is arranged below the six-end shaft, a pair of lower supporting frames are arranged on the upper surface of the lower plate, the ends of the front shaft and the rear shaft are connected with torsion spring devices, and first potentiometers are arranged on the lower supporting frames. And the first potentiometer and the second potentiometer are electrically connected with the main control board. The game controlled object is controlled by treading the pedal, and the method is suitable for people with inconvenience in two hands or disabled hands and is also suitable for the scene that fingers need to frequently switch and operate a plurality of keyboard buttons.

Household appliance, in particular household dishwasher, with a door pivotably mounted by means of at least one door hinge (4), wherein the door hinge (4) comprises at least: a hinge bracket (1) and a bearing bolt (5) cooperating with the hinge bracket (1) to form the door hinge (4), wherein the hinge bracket (1) has an open-edged bolt passage area (6) which opens into a bearing opening (7) into which the bearing bolt (5) can be inserted for rotatable mounting of the door, wherein the hinge bracket (1) is attached to the door and the bearing bolt (5) to a housing of the household appliance, or the bearing bolt (5) is attached to the door and the hinge bracket (1) to the housing of the household appliance, wherein retaining means (13') are provided to secure the bearing bolt (5) in the bearing opening (7), characterized in that the bearing bolt (5) has at least one constriction (19), in particular arranged between a bearing bolt body (21) and a bearing bolt head (22), wherein the retaining means (13') allow the bearing bolt (5) to exit the bearing opening (7) when the bearing bolt (5) is located at a specific angular position in relation to the bearing opening (7) and / or is moved in a specific direction out of a cam against a spring force of a spring (14).