2022 results about "Coil spring" patented technology

A method of making a string of springs (26, 26a) for use in a pocketed spring assembly (12, 12a, 12c, 12d) comprises folding one piece of fabric into first and second opposed plies (47, 49) of fabric. An oversized pocket (34) is formed along each string by transverse seams (52) joining the first and second plies (47, 49). The oversized pocket (34) is separated into a spring pocket (46) and a mini-pocket (48) by a separating seam (44). A coil spring (36) is positioned in each spring pocket (46). Foam chemicals are injected into the mini-pocket (48). The foam chemicals react in the mini-pocket (48) to create a foam pad (54).

A method of making a string of springs for use in a pocketed spring assembly comprises folding one piece of fabric into first and second opposed plies of fabric. An oversized pocket is formed along each string by transverse seams joining the first and second plies. The oversized pocket is separated into a spring pocket and a mini-pocket by a separating seam. A coil spring is positioned in each spring pocket. Foam chemicals are injected into the mini-pocket. The foam chemicals react in the mini-pocket to create a foam pad.

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 invention belongs to the technical field of injection pens, and particularly relates to an injection pen. The injection pen comprises a coil spring support which is axially arranged in a pen body in a sliding mode, and a ratchet is arranged at the end of the coil spring support; the dosage knob is rotationally arranged at the end part of the pen body; the clutch rod and the coil spring support are coaxially arranged, and second clutch keys meshed with the dosage knob are symmetrically arranged on the outer wall of the clutch rod; the two ends of the coil spring are arranged on the clutch rod and the coil spring support respectively. The driving connecting rod is rotationally arranged in the pen body; the driving sleeve sleeves the driving connecting rod, one end of the driving sleeve is clamped with the clutch rod, and the driving sleeve is suitable for axially moving relative to the driving connecting rod; when the dose is adjusted, the dose knob drives the clutch rod to rotate so as to pressurize the coil spring; during excitation, the clutch rod drives the coil spring support and the driving sleeve to synchronously and axially move to an excitation station, the driving sleeve is meshed with the driving connecting rod, and the coil spring drives the clutch rod, the driving sleeve and the driving connecting rod to synchronously rotate.

The utility model provides a lightning impulse protection device for a transformer, and relates to the technical field of lightning arresters, the lightning impulse protection device for the transformer comprises a mounting plate, two ends of the mounting plate are respectively provided with a protection mechanism, the protection mechanism comprises two rectangular blocks, the inner walls of the two rectangular blocks are rotatably connected with a rotating shaft, and the rotating shaft is connected with the mounting plate. A rotating shaft is arranged on the outer side of the screw rod, a coil spring is arranged on one side of the rotating shaft, an L-shaped rod is fixedly connected to the outer surface of the rotating shaft, and a piston block is rotationally connected to one end of the screw rod. The piston block slides on the inner wall of the rectangular groove by rotating the screw rod, so that the airbag sheet deforms and expands outwards, the outer side of the joint of the lightning arrester body and the high-voltage line is wrapped and protected, the influence of rain and sun on the outer side of the joint of the high-voltage line and the lightning arrester body is reduced as much as possible, the service life of the lightning arrester body is prolonged, and the use effect of the lightning arrester body is improved.

The invention relates to the technical field of conveying equipment, and particularly discloses a bulk cargo dust raising prevention suspension type conveying device which comprises a guide rail and a stock bin, guide seats are fixedly connected to the front side and the rear side of the outer surface of the upper end of the stock bin, a fixing seat is fixedly connected between the two guide seats, and a sealing assembly is arranged on the inner side of the fixing seat; the sealing assembly comprises a storage groove formed in the inner side of the fixing base in an embedded mode, a coil spring is fixedly connected to the inner surface of the storage groove, the storage groove is rotationally connected with a reel through the coil spring, and a sealing curtain is wound around the outer surface of the reel. By arranging the sealing assembly and covering the upper side of the stock bin with a sealing curtain, the upper end of the stock bin can be sealed, so that the probability that bulk cargoes in the stock bin are scattered in the hanging and conveying process is reduced to a certain extent, and meanwhile the risk that the bulk cargoes raise dust due to wind blowing can be effectively reduced; and the environment-friendly effect of the suspension conveying device can be further improved.

The utility model provides a charging pile swing arm device and a charging pile. The charging pile swing arm device comprises a base; the coil spring is arranged in the base, and the outer end of the coil spring is connected with the base; the main shaft comprises a first part located in the base and a second part extending out of the base, the first part is connected with the inner end of the coil spring, and the main shaft is configured to drive the coil spring to be tightened or to be driven by the restoring force of the coil spring to rotate in the second direction when rotating in the first direction; and the swing arm is connected with the second part of the main shaft, and when the swing arm swings towards the first direction, the swing arm drives the main shaft to rotate towards the first direction, or when the restoring force of the coil spring drives the main shaft to rotate towards the second direction, the swing arm is driven to swing towards the second direction. According to the charging pile swing arm device, after the swing arm is used, the swing arm can automatically reset under the action of the winding force of the coil spring, and a gun line is prevented from being abraded on the ground.

According to the multi-connecting-rod type automobile suspension device, through cooperative cooperation of a multi-connecting-rod assembly, a damping support, an axle and a damping assembly, wheel vertical vibration caused by the road surface can be efficiently converted into a multi-connecting-rod swing vector, and self-adaptive damping adjustment is achieved by means of a damper and air cylinder composite structure in the damping assembly; impact can be effectively buffered in the compression stroke, springback can be restrained in the stretching stroke, it is ensured that tires continuously grip the ground, meanwhile, sound insulation materials are additionally arranged at the ends of the dampers, running noise is effectively reduced, impact energy in the vertical direction is further absorbed by integrating multiple sets of spiral springs through a drive axle, rigid transmission to an automobile main frame is reduced, and the service life of the automobile is prolonged. The whole structure is high in rigidity and reasonable in spatial arrangement, and has good vibration absorption performance, reliability and comfort, and the driving smoothness, the control stability and the noise vibration comfort of a vehicle are remarkably improved.

The invention discloses a production method of a low-cost carbon spiral spring steel wire rod, the chemical components of the steel grade do not contain precious alloy elements, the production process comprises the steps of converter top and bottom combined blowing smelting, LF refining, 6 # small square billet continuous casting, slow cooling and rolling in a wire factory, and the use requirements of users can be met without VD refining furnace production.

The utility model provides a digging device and method for bamboo pockets with piles for regulating and controlling the density of a bamboo forest, and belongs to the technical field of agriculture and forestry. The cleaning and digging device comprises a driving motor, a rotating shaft connected to an output shaft of the driving motor and a gear box rotationally connected to the lower end of the rotating shaft, a driving gear rotationally connected to a box body of the gear box through a bearing, a driven gear and two planetary gears are arranged in the gear box, the two planetary gears are transversely coaxial, and the driving gear and the driven gear are longitudinally coaxial; the gear box is sleeved with a rotary cutter cylinder, the rotary cutter cylinder is connected with a box body of the gear box through a spiral spring, the driving gear is connected with the lower end of the rotating shaft, and the driven gear is connected with a spiral drill bit located in the center of the rotary cutter cylinder. The method has the advantages of high efficiency, small land damage and the like.

This probe (10) comprises: a distal end part (11); a spring part (12) in which a plurality of coil spring parts (121) are connected along the axial direction via non-elastic connection parts (122); a proximal end part (13); and a current path member (114A) that is disposed inside the spring part (12) and electrically connects the distal end part (11) and the proximal end part (13). The probe (10) has a rectangular shape having four side surfaces when viewed in the axial direction, and a recessed section into which an end section of the current path member (114A) is inserted when the spring part (12) contracts in the axial direction is formed in at least one among the distal end part (11), the proximal end part (13), and the connection parts (122).

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.

The invention relates to a constant-force grinding device and method based on gravity-elastic force dynamic balance, solves the problem of contact force fluctuation caused by blade profile deviation, actuating mechanism positioning error and grinding tool abrasion, and ensures that normal pressure is stabilized at a set threshold value in the polishing process. The device comprises a constant-force coil spring, a motor, a base, a limiting block, a linear guide rail, a balancing weight, a grinding wheel and a foundation frame. The linear guide rail in the vertical direction is installed on the foundation frame, the base is connected to the linear guide rail in a sliding mode and can move up and down on the linear guide rail, the motor is fixed to the base, the upper end of the constant-force coil spring is fixedly connected to the top of the foundation frame, and the lower end of the constant-force coil spring is connected with the base. The balancing weight is installed on the motor or the base, and the balancing weight requirement is calculated according to the target downward pressure F. The contact force stability is improved; the maintenance period is prolonged, and the constant-force floating structure does not need electrical maintenance.

A tensioning device for controlling a webbing is provided, including a handle assembly, a base assembly, and a long webbing. The handle assembly includes a handle and ratchet wheels, the base assembly includes a base, the handle and the base are pivotally connected with each other through a reeling shaft, the ratchet wheels are fixedly mounted on the reeling shaft, a reel is fixed between the ratchet wheels, the ratchet wheels, the reel, and the reeling shaft rotate synchronously, the reel is sleeved outside the reeling shaft and disposed coaxially, one side of the reel is provided with an opening for the long webbing to pass through, one end of the long webbing is sleeved on the reeling shaft, and the other end of the long webbing is led out from one end of the base, one end of the reeling shaft is connected to a coiling spring assembly.

A spring guide includes: a main body portion of which a coil spring is placed on a vehicle side, the main body portion being formed of a resin material; and a covering portion that covers an anti-spring side of the main body portion opposite to the coil spring. The covering portion is formed of a material having a physical property different from that of the resin material forming the main body portion.

The invention discloses a spring module, a force balancing device, a force balancing system and a medical auxiliary system. The spring module comprises a guide rail, a plurality of spiral springs and at least one rotating pair. The multiple spiral springs are connected in series parallel to the guide rail. The rotating pairs are movably connected to the guide rails, every two adjacent spiral springs are connected through one rotating pair, and the rotating axes of the rotating pairs coincide with the axes of the spiral springs. According to the application, a plurality of spiral springs are connected in series to form a long spring, and the long spring stretches under the guidance of the revolute pair, so that the spring can be prevented from bending. The two opposite ends of every two adjacent spiral springs can generate relative rotating motion through the corresponding rotating pair, it is guaranteed that the two ends of each spiral spring have the relative rotating freedom degree, and the spiral springs can stretch out and draw back in the track close to the theory.

The invention belongs to the technical field of aerospace part machining, and particularly relates to a forming process of a titanium alloy cylindrical spiral spring for an aerospace craft, and the forming process specifically comprises the following steps: S1, carrying out flaw detection on a titanium alloy raw material; s2, a titanium alloy raw material is machined into a cylindrical spiral spring; s3, vacuum aging heat treatment is conducted on the cylindrical spiral spring, the heat treatment parameters are 545 + / -5 DEG C, heat preservation is conducted for 5.5 h to 6.5 h, and vacuum cooling is conducted in a cold chamber; s4, the formed cylindrical spiral spring is subjected to liquid nitrogen subzero treatment; s5, the cylindrical spiral spring subjected to subzero treatment is subjected to strong pressure treatment; and S6, shot blasting treatment is conducted on the cylindrical spiral spring subjected to strong pressing treatment. Compared with a traditional carbon steel spring, the weight of the titanium alloy cylindrical spiral spring manufactured through the process is reduced by about 50% on the premise that the same mechanical property is kept, and the effective loading capacity of a spacecraft is remarkably improved.

The invention relates to an adjustment arrangement for a locking element (2) of a motor vehicle, which has a first and second strand section (14, 15) with force- or torque-transmitting strand components coupled to each other, wherein the first strand section (14) is assigned a locking element-side, first connection (8) of the adjustment arrangement (1) and the second strand section (15) is assigned a body-side, second connection (9) of the adjustment arrangement (1), wherein the strand sections (14, 15) are linearly movable relative to each other for carrying out linear movements between the first connection (8) and the second connection (9) along a geometric axis of movement (A) between a retracted position and an extended position and are preloaded against each other by a spring arrangement (18) which has a helical spring (19) with spring coils (20) which extend circumferentially around the axis of movement (A).It is proposed that the spring arrangement (18) has a sliding part (22) extending at least partially circumferentially around the axis of movement (A), which is arranged radially between one or more of the spring coils (20) and a radial component (21) immediately adjacent to the helical spring (19) and is held axially fixed and / or rotationally fixed to the helical spring (19) via a sliding part contact surface (25).

To suppress horizontal vibration of a nuclear pressure vessel during an earthquake, and make a dynamic vibration absorber compact to suppress an installation space of the dynamic vibration absorber, in a nuclear power plant.SOLUTION: An earthquake resistance support device for a nuclear power plant is arranged in a reactor containment vessel, and suppresses horizontal vibration of a reactor pressure vessel supported by a pedestal when an earthquake occurs. The earthquake resistance support device comprises a horizontal beam that is arranged between the reactor containment vessel and the reactor pressure vessel, and the pedestal, and extends in the radial direction of the reactor pressure vessel and the pedestal; and a dynamic vibration absorber installed on the horizontal beam. The dynamic vibration absorber comprises a hollow weight extrapolated to the horizontal beam and movable in an axial direction of the horizontal beam, and a coil spring device that elastically supports the hollow weight in the axial direction of the horizontal beam, to allow the hollow weight to vibrate in the axial direction of the horizontal beam.SELECTED DRAWING: Figure 3

The invention discloses a metal sealing butterfly valve, relates to the field of butterfly valves, and solves the contradiction between leakage and operation torque. The valve seat assembly comprises a main sealing ring, an auxiliary sealing ring and a pressing ring. The main sealing ring and the auxiliary sealing ring are coaxially arranged, and the main sealing ring is closer to the valve rod than the auxiliary sealing ring. Each of the main sealing ring and the auxiliary sealing ring comprises a spiral spring, the spiral springs are connected end to end to form a ring, and the peripheral surfaces of the spiral springs are coated with metal sheets; the main sealing ring makes contact with the butterfly plate to form sealing fit when the butterfly plate is closed, and the auxiliary sealing ring extrudes the main sealing ring under forward impact of a medium and makes contact with the butterfly plate to form sealing fit. The spiral spring is connected end to end to form an annular structure to serve as an elastic base body, the elastic deformation capacity similar to that of rubber is provided for the sealing ring, the metal sheet wrapping the periphery is matched, the high-temperature-resistant and high-pressure-resistant characteristics of metal materials are reserved, tight attachment of the sealing face is achieved through elastic compensation of the spring, and the leakage-proof capacity is improved.

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.

A retractable rule assembly includes a housing, a coil spring assembly, and a replaceable blade cartridge. The coil spring assembly includes a first coupler. The replaceable blade cartridge is configured to be selectively mounted in and removed from the housing when a displaceable panel of the housing is in an open position. The replaceable blade cartridge comprises an elongated blade, a reel, and a second coupler. The second coupler is constructed and arranged to engage with the first coupler when the replaceable blade cartridge is mounted in the housing, such that the first coupler and the second coupler become rotatably coupled. When the first coupler and the second coupler are rotatably coupled, the coil spring assembly is biased to rotate the replaceable blade cartridge in a direction that winds the blade onto the reel when the blade is extending outwardly of the housing.

Disclosed herein are one-piece internal valve components that integrally include a combination of conventionally separate components (e.g., poppet (broadly, valve closure member), coil spring (broadly, biasing member), and retainer, etc.). The one-piece internal valve component has a unitary, monolithic, and / or single-piece construction. The one-piece internal valve components may be used in various valves, such as two-piece valves, check valves, relief valves, flow control valves for aircraft hydraulic systems, other flow control valves, etc. Also disclosed herein are exemplary methods of making one-piece valve components, e.g., via machining, additive manufacturing (e.g., 3D printing, etc.), other suitable methods for integrally combining conventionally separate internal valve components (e.g., poppet, spring, and retainer, etc.) into a one-piece internal valve component having a unitary, monolithic, and / or single-piece construction, etc.

This method for manufacturing a probe involves: preparing a first metal plate (111) in which first diagonal beams (1211) extending in a first intersecting direction are arranged, a second metal plate (112) in which parallel beams (1212) are arranged in two rows at the intervals of the first diagonal beams (1211), and a third metal plate (113) in which second diagonal beams (1213) extending in a second intersecting direction symmetrical to the first intersecting direction are arranged; and layering the first metal plate (111), the second metal plate (112), and the third metal plate (113) sequentially. An end portion of the first diagonal beam (1211) and an end portion of the second diagonal beam (1213) are connected via the parallel beam (1212) to configure a spring portion (12) that includes a coil spring portion (121) in which the first diagonal beam (1211), the parallel beam (1212), and the second diagonal beam (1213) are connected sequentially.

This invention relates to the field of conveying equipment technology, specifically disclosing a bulk cargo dust-proof suspended conveyor device, including a guide rail and a hopper. Guide seats are fixedly connected to the front and rear sides of the upper outer surface of the hopper. A fixed seat is fixedly connected between two sets of guide seats. A sealing assembly is provided inside the fixed seat. The sealing assembly includes a receiving groove embedded inside the fixed seat. A coil spring is fixedly connected to the inner surface of the receiving groove. A roller is rotatably connected to the receiving groove via the coil spring. A sealing curtain is wound around the outer surface of the roller. By setting up the sealing assembly and covering the upper side of the hopper with the sealing curtain, not only can the upper end of the hopper be sealed, thereby reducing the probability of bulk cargo spilling during suspended conveying to a certain extent, but it can also effectively reduce the risk of dust generation due to wind blowing, thus further improving the environmental protection effect of the suspended conveyor device.

The invention relates to the technical field of assembly type beam columns, in particular to an assembly type beam column joint structure and a construction method.The assembly type beam column joint structure comprises a connecting cavity, a first cross beam, a second cross beam and a vertical beam are arranged in the connecting cavity, the assembly type beam column joint structure further comprises an assembly assembly, and the assembly assembly comprises a stress auxiliary unit and a fastening unit; the fastening unit comprises an adaptive plate, a positioning rod, a positioning hole, a first arc-shaped block, a second arc-shaped block, a second groove, a second clamping groove, a first groove and a first clamping groove, a first coil spring shaft is arranged on the inner wall of the first groove, a first clamping hook is fixedly installed on the surface of the first coil spring shaft, and one end of the first coil spring shaft is fixedly connected with a first gear; when the first clamping hook and the second clamping hook correspond to the first clamping groove and the second clamping groove, the first clamping hook and the second clamping hook are clamped into the first clamping groove and the second clamping groove correspondingly, rapid fastening connection between the first cross beam and the second cross beam in the connecting cavity is achieved, instant locking of the first cross beam and the second cross beam is achieved through mechanical meshing, traditional bolt connection is replaced, and the connecting efficiency is improved. Operation is simple and convenient.

The utility model provides a cigarette package showing stand, and belongs to the technical field of commodity display devices. The problem of how to improve the use convenience is solved. The cigarette packaging showing stand comprises a stand body, the stand body is in a long strip shape, a pushing base is connected into the stand body in a sliding mode in the length direction, a counting coil spring is arranged on the outer side wall of one end of the stand body, a plurality of counting marks arranged at intervals are arranged on the counting coil spring in the length direction, and one end of the counting coil spring is connected with the pushing base. According to the cigarette package showing stand, the use convenience can be improved.