1268 results about "Coil spring" patented technology

The utility model relates to the field of drilling tools for wells, in particular to a self-adaptive rotary steering drilling tool which comprises a drill bit body and a damping column, a plurality of blades are sequentially arranged on the crown portion of the drill bit body in the circumferential direction, the cutting faces of the blades are fixedly connected with a plurality of cutting teeth, and mounting holes are formed in the outer side faces of the blades. Steel sleeves are fixedly arranged in the mounting holes, the damping columns are movably inserted in the steel sleeves, the ends, located in the steel sleeves, of the damping columns are fixedly connected with connecting bases, adjusting plates are arranged between the connecting bases and the bottoms of the steel sleeves, and outer-layer low-rigidity spiral springs are connected between the adjusting plates and the connecting bases. An inner layer high-rigidity conical spring is arranged on the inner side of the outer layer low-rigidity spiral spring, and an adjusting assembly for adjusting the adjusting plate and the bottom of the steel sleeve is arranged on the steel sleeve. The drill bit can better adapt to different pressure requirements, and the drill bit is prevented from bearing overlarge impact force, so that the cutting teeth are protected, and the service life of the drill bit is prolonged.

The utility model relates to an arm strength exerciser which comprises a spring tube and two grab handles. The bourdon tube is a cylindrical spiral bourdon tube with a certain length and comprises a middle main body part with a larger diameter and two end parts which are positioned at two ends of the middle main body part and have smaller diameters; and the two grab handles are respectively and fixedly sleeved on the two end parts. The main body is the cylindrical spiral bourdon tube, the grab handles are arranged at the two ends of the cylindrical spiral bourdon tube respectively, the two hands grasp the grab handles to elastically bend the bourdon tube during exercise, so that the muscle strength of the arms is exercised, and the bourdon tube has the advantages of being simple in structure and convenient to use.

A safety tensioning device for automobile comprises a winding assembly disposed on the base and driven by a main shaft, the winding assembly and a coil spring; a stop plate and a pressing plate disposed respectively at the front end and the rear end of the base; a driving pawl is rotatably connected to the handle. The handle is pivoted to the base and is capable of rotating about the main shaft; the base has three operating regions on the top of the base: a tensioning region, a working region and a release region, the three operating regions cooperate with the limiting block of the driving pawl. The present invention can automatically wind the first bundling strap when the first bundling strap is loose due to jolts in the operating state, so that the first bundling strap is always kept in the tensioned state, thereby preventing unhooking and greatly improving the use safety.

The invention discloses an air spring damping device with a vehicle body posture compensation function, and relates to the technical field of vehicle air spring damping. A piezoelectric ceramic stack main shaft assembly, an active variable stiffness spiral spring assembly arranged at the bottom of the piezoelectric ceramic stack main shaft assembly and a non-Newtonian fluid damping cavity assembly arranged at the bottom of the active variable stiffness spiral spring assembly are sequentially and coaxially arranged from inside to outside. The whole body is coordinated under the unified scheduling of a micro central controller, so that the piezoelectric stack outputs reverse-phase force to accurately counteract the impact, the spiral spring locks the number of turns through the actuating nut to realize the rigidity step improvement, and the non-Newtonian fluid instantaneously changes the viscosity through excitation to filter vibration. By means of formed synchronous cooperation, full-band road excitation is achieved, optimal composite compensation from high-frequency fine vibration to single large impact is achieved, and the contradiction between comfort and controllability is thoroughly solved.

The application discloses a full-automatic milk boiling pot capable of automatically boiling milk without overflowing, which comprises a pot body, a handle, an inner tube, a movable rod, a pot cover, a pressure sensor, a gas permeation hole, a control button panel, an interface, a bottom plate, an insulating plate, a heating disc, a control panel, a fixing column, a supporting block, a discharging cylinder, a connecting pipe, a rack, a temperature sensor, a servo motor, a gear, a first missing groove, a second missing groove, a trapezoidal plug, a guide rod, a first spiral spring, a guide plate, a guide hole, an iron plate, an electromagnet, a fixing frame, a liquid level sensor, a circular ring groove, a connecting rod, a straight cylinder, a discharging hole, a piston ring, a fixing ring, a second spiral spring, a lower blocking ring, an upper blocking ring, a third spiral spring and a gate plate. The application has the advantages of being used for automatically boiling milk, and compared with the traditional technology, the pot cover can be automatically opened during the milk boiling process, the foaming caused by the boiling of the hot milk cannot be discharged, the foaming foam can automatically fall down, and the overflow can be avoided.

The application provides a rotatable pull rod installed on the top of an I-beam template, belonging to the field of prestressed concrete bridges, which comprises a fixed bottom plate, a movable bottom plate arranged on one side of the fixed bottom plate, a telescopic mechanism connecting the movable bottom plate and the fixed bottom plate, a positioning clamping block fixedly connected to the bottom of the fixed bottom plate and the movable bottom plate, and a U-shaped frame fixedly connected to the side end of the fixed bottom plate and the movable bottom plate. The pushing of the driving spring is offset by the driving pawl, and the driving pawl is unlocked. Under the pushing of the reset coil spring, the rotating shaft is rotated, the rotating shaft drives the driving pawl to rotate, the driving pawl is reset, and the two driving pawls are reset one by one, so that the fixing of the device and the two I-beam templates is conveniently released, the device is quickly disassembled, the device is quickly assembled and disassembled, the installation mode between the butterfly buckle and the screw rod is avoided, the installation speed is improved, and the flow operation of the beam bench is accelerated.

An elastic unit 1000 comprises two outer portions 1100, 1200 of a spacer fabric and an elastic core 1300 therebetween. The elastic core includes an array of elastic elements, in which example, the elastic elements are metal coil springs S in 10 separate pockets P. Portions 1100, 1200 of the spacer fabric are joined together along the edge of the unit 1000, for example by ultrasonic welding at a location W, and the portions 1100, 1200 may also be joined 15 using other methods.

This invention relates to the field of factory environmental control technology, and discloses a distributed micro-orifice jet temperature control system and its control method for factory environments. The system includes a central unit, a main air supply duct, branch hoses, workstation-level electromagnetic regulating valves, female quick-connect fittings with leak-proof check valves, and terminal equipment with male quick-connect fittings. The terminal equipment is equipped with a hollow column composed of an outer and inner tube, a telescopic locking mechanism, and low-voltage cables with a helical spring-like extension structure. It also includes an AI controller, an ambient temperature sensor, a body surface temperature sensor, a personnel presence sensor, and a pulse width modulation generator. This invention uses leak-proof check valves to block airflow in vacant workstations to avoid energy loss, utilizes the helical spring-like extension structure to prevent breakage of low-voltage cables, and uses the AI ​​controller to adjust the flow cross-sectional area of ​​the workstation-level electromagnetic regulating valves based on multi-sensor parameters to achieve safe flow interruption and protect personnel at the workstations.

The application discloses a knotting device and a blood vessel ligator. The knotting device comprises a gun body provided with a knotting groove and a knotting mechanism arranged in the knotting groove. The knotting mechanism comprises a spiral spring and an abutting piece abutting against the spring body of the spiral spring. The spiral spring has a hooking and pulling end and an extending end. The extending end is used for controlling the movement of the spring body of the spiral spring. The abutting piece is used for making the spring body of the spiral spring deform and stretch in the movement, so that the spring body of the spiral spring rotates. In the process of the rotation of the spring body of the spiral spring, the thread of the surgical suture hooked by the hooking and pulling end rotates around the surgical suture passing through the spring body of the spiral spring, so that the surgical suture forms a surgical knot. The blood vessel ligator comprises the knotting device. In the blood vessel ligator, the surgical suture can quickly form the surgical knot and the blood vessel can be tightly clamped by only operating the traction piece to pull the extending end of the spiral spring.

The utility model relates to the technical field of water conservancy pipeline construction, in particular to a water conservancy pipeline butt joint device. Comprising a connecting seat, two threaded rods are installed at the two ends of the connecting seat and rotationally connected with a first sliding seat and a second sliding seat correspondingly, a jack is installed in the second sliding seat, the output end of the jack is connected with a sliding block, supporting seats are installed above the first sliding seat and the sliding block correspondingly, and spiral springs are installed in the supporting seats; a top plate is connected to the top end of the spiral spring, an insertion rod is installed on the upper portion of the supporting base in an inserted mode, a rotating plate is installed on the upper portion of the insertion rod, a threaded column is welded to the end, away from the insertion rod, of the rotating plate, and a hoop is installed on the threaded column through a nut. When dislocation occurs during pipeline contact, the threaded rod is rotated to push the first sliding seat or the second sliding seat to move, then the two pipelines are pushed to be aligned, in this way, the positions of the pipelines can be accurately and reliably aligned, and the pipeline butt joint efficiency and effect are guaranteed.

The invention discloses a U-shaped water pipe manufacturing device and method, and aims to provide the U-shaped water pipe manufacturing device and method which can conveniently and quickly manufacture a U-shaped water pipe and effectively improve the U-shaped water pipe manufacturing efficiency and the percent of pass. A U-shaped water pipe manufacturing device comprises a base and a water pipe manufacturing assembly, and the water pipe manufacturing assembly comprises a spiral spring inserted into a water pipe; the fixed forming part is fixed to the base, and the pressing block driving mechanism drives the pressing block to be close to or away from the fixed forming part; a semicircular forming block and two parallel limiting through holes are formed in the side face, facing the pressing block, of the fixed forming piece, the forming block is located between the two limiting through holes, and the limiting through holes are located in the edge of the forming block.

This utility model discloses a novel automotive coil spring mounting bracket, belonging to the field of automotive suspension technology. It includes a coil spring and an axle body. Two axle spring seats are symmetrically fixedly connected to the axle body, and studs are fixedly connected to both axle spring seats. Two washers are symmetrically bonded to both ends of the coil spring. A washer is provided on the inner bottom wall of the coil spring, and a washer is provided on the side of one of the washers away from the coil spring. In this utility model, the washers and washer form a mounting bracket, and two sets are symmetrically installed on the upper and lower parts of the coil spring. One set of mounting brackets clamps the coil spring wire and fixes the coil spring to the axle spring seat between the components using studs and nuts. The other set of mounting brackets is fixed to one side of the vehicle body or the axle side using bolts and nuts, thereby effectively improving the overall stability of the device and reducing the risk of the coil spring coming off.

The utility model relates to the technical field of washing machines, and provides a washing machine wire harness fixing device which comprises a plate body, a winding disc is fixedly connected to the side face of the plate body, a rotating shaft is rotationally connected to the side face of the winding disc, a coil spring is installed at the rotating joint of the rotating shaft, a supporting arm is fixedly connected to the end of the rotating shaft, and the supporting arm is located on the side face of the winding disc. A winding wheel is fixedly connected to the end of the supporting arm, a clamping groove is formed in the side face of the winding disc, in the using process, the plate body is bonded to the side face of the washing machine, a wire is clamped into the clamping groove, the bottom end of the wire is fixed through friction force, then the wire is placed on the winding wheel and wound around the winding disc, and a coil spring is installed between a rotating shaft on the supporting arm and the winding disc. When the electric wire plug is pulled out, the support arm and the winding wheel can be driven to keep winding the electric wire, when the electric wire is pulled out, the support arm is rotated, the coil spring is compressed, and when the electric wire plug is pulled out, the electric wire is wound on the winding disc again under the action of the coil spring.

The utility model provides a charging pile swing arm device and a charging pile, the charging pile swing arm device comprises a base, the top surface of the base is provided with a first bearing; the first end of the main shaft is connected with the base, and the main shaft is configured to rotate in the base; the coil spring balancer is connected with the second end of the main shaft, and an abutting structure abutting against the first bearing is arranged at the bottom of the coil spring balancer; and the swing arm is connected with the coil spring balancer, and when the swing arm swings, the coil spring balancer is driven to rotate so as to drive the main shaft to rotate. According to the charging pile swing arm device and the charging pile, the coil spring balancer is arranged at the second end of the main shaft, the coil spring balancer can increase the effective length of the gun line, waste of the length of the gun line is reduced, and the user experience is improved.

The coil spring with the reinforcing pieces comprises a coil spring body, the coil spring body comprises elastic reeds extending in the spiral direction, an elastic inner side end and an elastic outer side end, and an included angle is formed between the elastic inner side end and the elastic reed corresponding to the elastic inner side end to form a bent section; the reinforcing sheet structure comprises a reinforcing sheet body extending in the spiral direction, a reinforcing inner side end and a reinforcing outer side end, and an included angle is formed between the reinforcing inner side end and the reinforcing sheet body corresponding to the reinforcing inner side end to form a first limiting space; the reinforcing piece body is wound by at least one circle, the reinforcing outer side end passes through the reinforcing inner side end, and a second limiting space is formed by a gap between every two adjacent circles of reinforcing piece bodies. According to the coil spring with the reinforcing piece, the reinforcing piece structure is arranged on the inner coil section of the coil spring, stress generated in the winding and releasing process of the elastic reed is dispersed to the reinforcing piece body of the outer ring, fatigue cracks are prevented from being generated, and the service life of the coil spring is prolonged.

The correction device (10) is provided with: a shaft part (14) that can extend from the correction device (10) in the axial direction; an outer cylinder section (12) that supports the shaft section (14) therein; a coil spring (24) which is disposed inside the outer cylinder section (12) and which biases the shaft section (14) in the extension direction; temporary stop mechanisms (12a, 12b, 15) that stop the shaft section (14) at the press-fit position against the biasing force of the coil spring (24); a fixing part (16) which is arranged on the outer cylinder part (12) and can fix the shaft part (14) to the outer cylinder part (12); an XY correction section (26) formed along the outer peripheral surface of the shaft section (14); and a Z correction section (28) formed at the tip of the shaft section (14) and having a plane orthogonal to the axial direction of the shaft section (14).

The invention relates to the field of non-insulated conductors or electric conductors with the shape as the characteristic, in particular to a copper bar voltage-sharing device and a switch cabinet. The copper bar voltage-sharing device comprises a spiral spring serving as a spring shielding case, an inner hole of the spiral spring forms a shielding cavity for a copper bar to penetrate through, a gap between spring coils of the spiral spring forms a heat dissipation channel, and a limiting block which is used for being supported between the spring shielding case and the copper bar to limit the distance between the spring shielding case and the copper bar is arranged for the spring shielding case. The voltage-sharing end sockets are arranged at the two ends of the spring shielding case to shield the connection points of the copper bars and the corresponding conductors, and the voltage-sharing end sockets are provided with conductor insertion ports for insertion of the conductors to be connected with the copper bars. The overall insulation of the switch cabinet can be improved while the overall size of the switch cabinet is not increased.

To provide a mechanical power storage device capable of stabilizing power generation by suppressing fluctuation of generated torque even if thrust changes with a stroke change of an elastic body.SOLUTION: The mechanical power storage device 1 stores power by extending a coil spring 2 (elastic body) by traction by winding of a wire rope 3 (rope-like body) to convert the energy into physical energy, and generates power by kinetic energy when the coil spring 2 is released and restored to an initial state. A guide groove (11) for spirally guiding the wire rope (3) is formed on a tapered surface of the drum (6), and a diameter change due to winding of the drum (6) is made to correspond to a stroke change of the coil spring (2) with a large diameter side of the drum (6) as a winding start side and a small diameter side of the drum (6) as a winding end side, so that a fluctuation in generated torque can be suppressed.SELECTED DRAWING: Figure 1

To provide a work locking member hardly damaging a work.SOLUTION: This work locking member 100 is composed of a projecting strip extending in the width direction of the conveyor belt A, and locks and carries the work placed on the conveyor belt A. A work locking member 100 is provided with a locking member main body 10 for locking a work and a fixing means 20 for controlling the locking member main body 10 to a conveyor belt A. The locking member body 10 comprises a coil spring 11 and a mesh belt 12 covering the coil spring 11.SELECTED DRAWING: Figure 1

The utility model relates to the technical field of anti-falling lock catch devices, in particular to an anti-falling lock catch device for a battery of an electric sports car. The storage box has the advantages that when a battery is pushed in through the lead-in opening, the transmission shaft and the semicircular clamping block are pushed into the circular bayonet, and then the transmission shaft and the semicircular clamping block can be driven to rotate by rotating and retracting the pulling handle to the inner wall of the storage groove, so that the transmission shaft and the semicircular clamping block are transversely arranged at the top of the inner wall of the circular bayonet, and the upward degree of freedom is limited; the anti-disengaging lock catch structure is convenient to operate, locking and unlocking can be completed only by controlling the pulling handle to rotate with one hand, the unlocking action and the unlocking action are continuous, operation is smoother and more convenient, efficiency is improved, the winding force of the coil spring can automatically drive the transmission shaft to rotate through the winding force, the pulling handle can be automatically retracted, and the anti-disengaging lock catch structure is convenient to use. And meanwhile, by pulling the counterweight filler on the inner wall of the handle, the lifting resistance can be improved after locking, and the situation that the handle is bounced due to vibration is prevented.

The present invention is a hydraulic control apparatus (10) that activates and deactivates a downhole tool, such as a reamer, at a desired downhole location in a borehole. The apparatus includes a piston (20), a housing (40), a coil spring (48), and a guide pin (80). The piston (20) has a cam portion (26) with a continuous slotted groove (62). There is a slide member (64) and a force member (66) within the slotted groove so that the piston moves longitudinally and rotationally within the housing according to the guide pin within the slotted groove. At the desired downhole location, drilling fluid pressure passes a pressure threshold to move a front outlet of the piston to an opened position past an end of the housing, while rotating the piston according to the slide member and force member in the slotted groove. The apparatus alternately extends and retracts the reamer by opening and closing the front outlet by hydraulic control.

Chain tensioner (7), comprising: a lever (9) comprising a sliding contact surface (16) configured to come into sliding contact with a chain (5), and a hub section (15); and a torsion spiral spring (10) comprising a spiral section (18) arranged around the hub section (15), a fixed-side support arm (17) extending from one end of the spiral section (18), and a lever-side support arm (19) extending from the other end of the spiral section (18), wherein when the fixed-side support arm (17) abuts a spring contact section (20), the lever-side support arm (19) abuts a contact surface (21) provided on the lever (9) to exert a preload force of the torsion spiral spring (10) on the lever (9) and tension via the sliding contact surface (16) on the chain (5), wherein the fixed side support arm (17) contains: a restricted section (17a, 17a2), and a press section (17c, 17c2), wherein the lever (9) includes a spring-enclosing section (22, 222) which encloses the locking section (17a, 17a2) and an engagement section (22a, 22a2) which locks the locking section (17a, 17a2) which is enclosed in the spring-enclosing section (22, 222) in a state in which a preload force is applied, and wherein a pressing force is exerted on the pressing section (17c, 17c2) to release the locking of the locking section (17a, 17a2), so that the locking section (17a, 17a2) is removed from the spring mounting section (22, 222) and the locking is released with the engagement section (22a, 22a2).

The invention provides a charger with a line concentration function, the charger further comprises a U-shaped base, a mounting cylinder, a plurality of charging modules, an anti-unlocking mechanism and a control unit, the plurality of charging modules are arranged in an accommodating cavity, each charging module comprises a shell, a rotating shaft I, a reel, a coil spring and a charging line, the end part of each charging line is provided with a straight rod part, and the top surface of the end part of each straight rod is provided with a groove; a T-shaped sliding block is arranged in the groove in a sliding mode, a spiral spring is arranged in the groove, the protruding part is provided with a penetrating through hole and a finger operation hole, the inner wall of the bottom of the finger operation hole is communicated with the penetrating through hole through a connecting through hole, and the straight rod part can slide to the outside through the penetrating through hole. An anti-unlocking mechanism is arranged, an adult can press and pull a T-shaped sliding block after a finger is inserted into a finger operation hole, a charging wire can be conveniently and rapidly taken out, the finger of a child is short and cannot make contact with the T-shaped sliding block due to limitation of the finger operation hole, the charging wire cannot be unlocked, and the danger caused by pulling out the charging wire for playing is avoided.

This invention suppresses accidental unlocking and improves vehicle anti-theft performance. The handle locking device (20) includes: a rotatable operating knob (26); a connector (27) that rotates integrally with the operating knob (26); a contact bracket (32) that rotates integrally with the connector (27); a positioning mechanism (33) that positions the contact bracket (32); a locking member (38) that moves to the engaged position via the connector (27) by rotating the operating knob (26); and a coil spring (41) that applies force to the locking member (38) to the unengaged position. A rotation limiting part (27d, 40g) is provided between the connector (27) and the locking member (38), which limits the rotation of the connector (27) when the operating knob (26) is in the locked position (22c).

The utility model belongs to the technical field of metal pipe machining, and particularly relates to an anti-deformation elastic lining device for bending a copper pipe. The device comprises a spiral spring used for being inserted into a to-be-bent area in a copper pipe and traction structures arranged at the two ends of the spiral spring. The pitch of the spiral spring is 0; or, the pitches of the spiral spring from the middle to the set number of turns at the two ends are 0, the pitches within the set number of turns at the two ends are gradually changed from 0 to 1 mm from the set number of turns at the two ends to the two ends, and the set number of turns is 3-5; the difference value between the outer diameter of the spiral spring and the inner diameter of the copper pipe to be bent ranges from 1 mm to 3 mm. The elastic modulus of the spiral spring is greater than the yield strength of the copper pipe to be bent; the traction structure is used for being connected with an external traction tool. According to the copper pipe bending device, the ovality and the wall thickness reduction rate of a bent copper pipe can be reduced, the single-time bending operation time is shortened, and the copper pipe bending device can be repeatedly used.

The invention relates to a strength analysis method for a lower control arm of a heavy truck, and solves the problems that the design iteration period is prolonged and the cost is increased due to the fact that a deviation exists between a traditional analysis method and a real working condition and the strength needs to be verified through a large number of bench tests in the later period. Selecting a lower control arm front end point, a lower control arm rear end point, a spiral spring lower end point and a spherical hinge point from the initial finite element model as nodes for extracting loads, endowing material parameters of the lower control arm: an elastic model, density and Poisson's ratio, and laying a foundation for building a multi-body dynamic model; when the multi-body dynamic model is built, template models of tires, suspensions and flexible bodies are built, a whole vehicle assembly model is assembled, loading of a vertical bending working condition, a horizontal bending working condition and a torsion working condition is carried out, loads of all nodes are submitted, calculated and extracted, the loads are reversely loaded to a complete finite element model, and a strength analysis result of the lower control arm is obtained through calculation. A simulation analysis result is closer to a real vehicle reliability test result.

The wire harness storage box comprises a box body, a first wire spool, a coil spring piece and a wire locking mechanism, a wire outlet is formed in the side wall of the box body, the first wire spool is rotationally connected with the box body, a wire harness is wound around the first wire spool, the free end of the wire harness extends out of the wire outlet, and the coil spring piece is arranged in the box body and connected with the first wire spool. The motor is used for driving the first wire spool to reset; the wire locking mechanism comprises a positioning needle and a limiting block, one of the positioning needle and the limiting block is arranged on the first wire spool, the other of the positioning needle and the limiting block is arranged on the box body, and the positioning needle is a swing needle with a rotating center. When the limiting block and the positioning pin make contact with each other and rotate relative to each other, the limiting block can drive the positioning pin to swing, and the positioning pin has a first state in which the positioning pin and the limiting block are mutually clamped and a second state in which the positioning pin and the limiting block are mutually separated. According to the wire harness storage box, the fixed length of the wire harness can be achieved by arranging the wire locking mechanism, and the problem that the wire harness can be maintained at the required length only by continuously pulling the wire harness is solved.

The utility model relates to the technical field of neodymium-iron-boron magnet machining, and discloses neodymium-iron-boron grinding machining equipment which comprises a machining table, a moving assembly, a clamp assembly and a vibration reduction assembly. According to the neodymium-iron-boron grinding equipment, the first clamping plate and the second clamping plate are driven by the two-way screw rod to move synchronously, and a first flexible clamp and a second flexible clamp are combined, so that centering suspended clamping of a neodymium-iron-boron magnet is achieved, bottom surface contact is avoided, multi-surface grinding can be completed without repeated clamping, a worm and a worm wheel are matched and meshed, and the grinding efficiency is improved. Meanwhile, an air cylinder controls a limiting rack and a plane gear to be meshed or separated, a double-locking mechanism is formed, the anti-torque capacity is improved while the overturning precision is guaranteed, and a rubber damping block in an inner cavity of the machining table can absorb high-frequency grinding vibration; the stainless steel spiral spring arranged outside in a sleeving mode isolates vibration of low-frequency equipment, the rubber damping pad on the bottom face of the machining table is combined, the overall vibration attenuation rate can be increased, and the grinding quality is improved.