CN217463066U

CN217463066U - Multipurpose rotating locking chain and positioning and containing device for serially connected rotating locking chains

Info

Publication number: CN217463066U
Application number: CN202123140640.7U
Authority: CN
Inventors: 不公告发明人
Original assignee: SHANGHAI YECHENG INTERNATIONAL TRADE CO Ltd
Current assignee: SHANGHAI YECHENG INTERNATIONAL TRADE CO Ltd
Priority date: 2021-12-14
Filing date: 2021-12-14
Publication date: 2022-09-20
Anticipated expiration: 2031-12-14

Abstract

The utility model relates to a realize the rotatory locking chain in the connecting end of two chain pieces that link to each other with the locking function. The movable locking shafts arranged in the two connected chain blocks are axially displaced, so that the two connected chain blocks can rotate and lock within a specified angle range. Through setting the non-perfect-circle cross section shapes of the movable locking shaft and the locking shaft hole, the functions of locking and unlocking at different locking angles between two connected chain blocks are realized. The relative rotation direction between the connected chain blocks is adjusted by setting a certain angle between the rotation axes of the adjacent connecting end parts of the serial rotary locking chain. The utility model discloses a but rotatory locking chain wide application in articles for daily use, industry, traffic, engineering construction, aerospace to and fields such as artificial intelligence.

Description

Multipurpose rotating locking chain and positioning and containing device for serially connected rotating locking chains

Technical Field

The utility model relates to a locking technical field, concretely relates to location storage device of rotatory locking chain of multipurpose and rotatory locking chain of polyphone.

Background

In the prior art, common products or accessories related to a rotation locking function generally rotate relatively between two accessories through a round shaft connection, and then are locked by utilizing a triangular fixing principle, such as a folding table, a folding handrail, a folding frame, a window and a door; the product or the accessory with the rotation locking function is locked by other additional accessories, such as a door lock, a door bolt and the like; the locking fittings are exposed outside the product, so that the integral attractiveness is greatly influenced, and the occupied space even hinders the normal use of the product; for example, when some products or accessories in the prior art cannot be unfolded or folded in a linear manner for use, hollow pipes with different thicknesses are inserted and combined, and are unfolded and contracted in a linear telescopic manner, for example, a pull rod on a suitcase is easily swung when the pull rod is used because the number of hollow rods is too large, the thickness of the whole pull rod is uneven, and a gap between an outer pipe and an inner pipe is difficult to effectively control; moreover, because the thickest hollow rod spans the body of the luggage, the use space inside is reduced, the function of folding the body is lost, and the reasonable arrangement of luggage articles is hindered. In addition, products related to a rotation locking mechanism generally exist in various fields such as industry, transportation, medical treatment, artificial intelligence and the like, for example, a mechanical arm, a mechanical claw, a medical robot, an industrial robot, an automatic door, a seat back, a surgical robot, a human robot joint and the like, in the prior art, the rotation is performed by using a gear transmission mode, a worm and gear transmission mode, a belt transmission mode, a chain transmission mode or the like, and then the locking is performed by using other accessories.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem be in order to overcome prior art not enough, compensate prior art's vacancy, and its technical problem of solving is: the axial displacement of the movable locking shaft enables the two connected chain blocks to rotate in a set angle range, and the function of accurately positioning and locking the chain blocks at a specified angle position is achieved, the defect that in the prior art, other complex locking devices or mechanisms are used for positioning and locking after the chain blocks are connected by using a circular shaft is overcome, and the defects that in the prior art, products or accessories cannot be rotated and locked by using the prior art, hollow pipes with different thicknesses are used for telescopic connection in a mode of opposite insertion and movement are overcome. The utility model discloses a rotatory locking chain of multipurpose can also replace some modes such as the complicated gear drive of utilization or worm gear transmission, belt drive or chain drive to rotate more high-efficiently, recycles other accessories and carries out the product or the accessory of locking to it. The utility model can be widely applied to various fields such as life and industry.

The claims and the description relate to "activity locking axle head" all indicate the activity locking axle is located the axial tip of its locking direction, "activity locking axle afterbody" all indicate the activity locking axle is located the axial tip of its unblock direction, "polyphone chain piece" all indicate the chain piece in the rotatory locking chain of polyphone, "parallel connection chain piece" all indicate on the chain piece that contains two or more than two connecting end, the spacing bolt that wears to establish in each connecting end is not at the chain piece on same straight line, "spacing unblock position" all indicate spacing recess is in the position of the spacing boss of release.

The utility model discloses a rotatory chain on movable locking shaft, chain piece and inside accessory between the position of swing joint be rigid metal or nonmetal material to ensure the performance of rotary mechanism rotatory locking chain. The whole shape of the chain block in the rotary locking chain of the utility model is not limited, such as block, strip, sheet and column, or is determined according to the shape of the product or the accessory.

The utility model provides a rotatory locking chain of multipurpose includes two at least chain pieces, activity locking shaft and stop device, its characterized in that: the chain block is characterized in that mutually communicated locking shaft holes containing non-regular circular cross section sections are arranged in two connected end parts between the chain block and the chain block in a penetrating manner, movable locking shafts containing non-regular circular cross section sections are arranged in the locking shaft holes in a penetrating manner and matched with the locking shaft holes, and when the movable locking shafts are simultaneously embedded and locked with the inner walls of the locking shaft holes in the two connected end parts under the action of the limiting device, the two connected end parts enter a locking state; when the movable locking shaft is acted by force and moves to an unlocking position in the unlocking direction, at least one chain block can freely rotate around the movable locking shaft within a specified angle range, and the two connected end parts enter an unlocking state. In some preferred embodiments, the non-right circular cross section is an axisymmetric figure having three or more symmetry axes, such as a regular polygon, a concave polygon, a tooth shape, or a petal shape, etc., of the axisymmetric figure having three or more symmetry axes.

In some embodiments, the two connected end portions are respectively a movable end portion and a connecting shaft end portion, wherein at least one connecting end portion is provided with a through groove, and the locking shaft hole is perpendicular to two sides of the through groove; the two connected end parts are connected in a plug-in manner; the end part of the connecting shaft and the movable locking shaft are integrally connected in a mode of relative rotation. The locking shaft hole penetrates through the two connected end parts; the end face of the head of the movable locking shaft is provided with a cylindrical boss which is higher than the side face of the chain block in a locking state, so that the two connected end parts can be conveniently unlocked in a manual mode. In some embodiments, in the locked state, the cylindrical boss slidably abuts against an inner wall of the locking shaft hole, so as to prevent the movable locking shaft from colliding with a wall of the locking shaft hole due to rotation and creep in the locking shaft hole, thereby preventing the contact surface from being abraded. In some embodiments, the chain blocks are connected in series, or the chain blocks are connected to each end of a parallel chain block or a series rotary locking chain. In some embodiments, the axes of rotation of two adjacent connecting ends are parallel or at an angle to each other; in some such embodiments, the rotation axes of two adjacent connecting end portions are perpendicular to each other, so that the planes on which the trajectories of the relative rotation of the two chain blocks connected at intervals are realized are perpendicular to each other.

In some embodiments, when two connected chain blocks cannot rotate relatively to a certain expected angle or the two connected chain blocks need to rotate relatively to a parallel position, a chain block with a shape and length matched with each other can be connected between the two chain blocks connected at intervals to realize the rotation by the two chain blocks connected at intervals.

In some embodiments, the movable locking shaft and the locking shaft hole are integrally stepped, each non-perfect-circle stepped section has a taper matched with each other in an embedded manner, and the non-perfect-circle cross section of each stepped section is an axisymmetric figure with three or more symmetric axes; in two adjacent steps, the maximum non-perfect circular cross-sectional area of the step close to the locking direction of the movable locking shaft is less than or equal to the minimum non-perfect circular cross-sectional area of the other step.

In some embodiments, the movable locking shaft is axially movably restrained by the restraining spring; and in a locking state, the movable locking shaft is embedded and locked with the locking shaft hole walls in the two connected end parts through the limiting spring. In some embodiments, a pre-tightening spring is arranged between the two connected ends, and a matched movable gap is arranged between the axial side surface of the movable end and the side surface of the end part of the connecting shaft opposite to the axial side surface; the pre-tightening spring is arranged in one of the gaps which can enable the movable end part to move relative to the end part of the connecting shaft to the unlocking direction of the movable locking shaft to be locked with the movable locking shaft; the axial acting force applied to the movable locking shaft by the limiting spring is larger than the reverse acting force applied to the movable locking shaft by the end part of the connecting shaft through the pre-tightening spring. In addition, with the increase of the use times, even if the locking shaft hole is enlarged due to abrasion between the movable locking shaft and the corresponding locking shaft hole wall, the movable locking shaft with slight taper and the locking shaft hole wall still keep tightly attached and locked with the locking shaft hole wall in a locking state after the movable locking shaft moves towards the locking direction under the action of the pressure of the limiting spring and the pre-tightening spring; in some embodiments, a groove for embedding the pre-tightening spring is arranged on one side surface of the pre-tightening spring gap, one end of the pre-tightening spring is pressed against the bottom of the groove, and the other end of the pre-tightening spring is pressed against the other side surface of the gap; in some embodiments, the taper of the non-circular step section is such that when the movable end rotates relative to the movable locking shaft, the inner wall of the locking shaft hole overcomes the acting force of the limiting device within a specified rotation pressure range to spin the side wall of the movable locking shaft, so as to force the movable locking shaft to move to the unlocking position.

In some embodiments, a stop boss is radially arranged on the side wall of the movable locking shaft; a stop boss groove matched with the stop boss is formed in the wall of the locking shaft hole corresponding to the stop boss at the angle needing to be locked; when the movable locking shaft moves from the locking position to the unlocking position, the stop boss moves from one end of the stop boss groove to the other end without interfering the rotation of the movable end part, and in the rotating process, the stop boss abuts against the axial side wall of the step section of the locking shaft hole of the movable end part under the action of the pressure of the limiting spring until the movable end part slides into the stop boss groove when rotating to the set locking angle position, namely, the movable locking shaft moves to the locking position, so that the movable locking shaft and the movable end part smoothly bypass the unnecessary locking angle position in the relative rotating process. In some embodiments, two chain blocks which are connected with each other are locked at a specified included angle position, so that the chain blocks are locked and arranged on a specified same arc line; in some embodiments, the rotation axes of the connecting end parts on the parallel-connection chain blocks are on the same straight line, the locking directions of the movable locking shafts penetrating through the connecting end parts are the same, and the end parts of the movable locking shafts are connected through a connecting rod; when the connecting rod moves from the locking state position to the unlocking direction to the unlocking position, each movable locking shaft is driven by the connecting rod to move from the locking state to the unlocking state direction to the unlocking position.

In some embodiments, in the two connected ends, the through groove is arranged on two sides of the movable end; a chain block limiting bolt hole and a locking shaft limiting bolt hole which are communicated with each other are simultaneously arranged at the end part of the connecting shaft and the two radial sides of the movable locking shaft in a penetrating manner, and the limiting bolt is arranged in the locking shaft limiting bolt hole and the chain block limiting bolt hole which is axially positioned with the locking shaft limiting bolt hole in a penetrating manner; the locking shaft limiting bolt hole is axially widened towards the locking direction of the movable locking shaft until the movable distance between two sides opposite to the limiting bolt is larger than or equal to the movable effective distance of the movable locking shaft moving axially from the unlocking position to the locking position. In some embodiments, in the tandem rotary lock chain, the blocks with two connecting ends are connected at intervals by the blocks without the connecting shaft ends and the blocks without the movable ends; or in a serial rotary locking chain, the chain block with two connecting ends comprises a connecting shaft end and a movable end. In some embodiments, the chain block without the connecting shaft end is not provided with the limiting bolt in a penetrating way.

In some embodiments, an end cap is arranged on one side of the chain block in the unlocking direction of the movable locking shaft, and a hollow column movably matched with the tail section of the movable locking shaft is arranged on the end cap; in a locking state, the distance from the bottom wall of the hollow column to the tail end face of the movable locking shaft is greater than or equal to the movable effective distance; the limiting spring is arranged between the tail of the movable locking shaft and the bottom wall of the hollow column, one end of the limiting spring is abutted against the bottom wall of the hollow column, and the other end of the limiting spring is abutted against the end face of the tail of the movable locking shaft.

In some embodiments, a limit spring hole is arranged on the inner wall of the limit bolt hole of the locking shaft in a penetrating way along the locking direction of the movable locking shaft; the limiting spring is arranged in the limiting spring hole, one end of the limiting spring is abutted against the bottom wall of the limiting spring hole, and the other end of the limiting spring is directly or indirectly abutted against the limiting bolt; in some embodiments, a limiting block is disposed between the limiting bolt and the limiting spring, one end of the limiting block abuts against the limiting spring, and the other end of the limiting block abuts against the limiting bolt, so as to prevent the limiting bolt from being abraded by interference between the limiting bolt and the limiting spring during the movement process or prevent the reset spring from being deformed by interference between the reset spring and the limiting bolt.

In some embodiments, the limiting bolt hole penetrates through two ends of the serial chain block with two connecting end parts; the limit switch is connected to the end part of the limit bolt penetrating through the first serial link block and positioned in the resetting direction of the limit bolt; a limiting boss axially extending towards the unlocking direction of the movable locking shaft is arranged on the inner wall of the limiting bolt hole of the movable locking shaft, and a release groove for releasing the limiting boss at a limiting unlocking position by the limiting bolt is axially arranged on one side of the limiting bolt facing the limiting boss; the limiting bolt is movably connected with the corresponding chain block in a limiting way through a resetting spring arranged in a limiting bolt hole; each connecting end part of the rotary locking chain is in a locking state in an initial state, and the limiting bolts penetrating through the connected serial chain blocks are in a mutually abutted reset state; when the limit switches are pressed to the positions after the reset springs are compressed, each limit bolt moves to the limit unlocking position.

In some embodiments, the limiting block serves as a limiting function for the return spring.

In some embodiments, the end surface of the limiting bolt in the return direction of the return spring is an arc surface, and the limiting bolts penetrating through two connected chain blocks are located at initial states with different included angles. That is, in these embodiments, the two connected chain blocks can be at a plurality of different angles in the initial state of the rotary lock chain. In some embodiments, the limit bolt is movably arranged in the limit bolt hole in a plug-and-socket buckling mode through two split fittings with limit flanges; concave surfaces matched with the limiting flanges are arranged at the two ends of the chain block; a second hole is formed in the inner wall of the limiting bolt hole, which is positioned at one end of the reset spring in the reset direction; the reset spring is sleeved on the limit bolt, one end of the reset spring is abutted against the limit flange, and the other end of the reset spring is abutted against the bottom wall of the second hole; the limiting bolt movably limits the chain block through concave surfaces at two ends of the chain block. In some embodiments, a limiting block is disposed between the limiting bolt and the limiting spring, one end of the limiting block abuts against the limiting spring, and the other end of the limiting block abuts against the limiting bolt under the pressure of the limiting spring. In some embodiments, the limit block is always kept at a low pressure at the position, close to the reset direction of the limit bolt, of the side wall of the limit bolt relative to the limit groove; the limiting blocks are positioned on two sides of the limiting bolt in the moving direction and are in sliding fit with the corresponding inner walls of the limiting spring holes, so that the limiting bolt is prevented from generating noise due to friction with the limiting spring in the moving process, or the reset spring is prevented from being deformed due to interference with the limiting bolt. In some embodiments, a limit bolt of an integrated structure is arranged in the chain block including the end part of the connecting shaft, a limit flange is arranged at one end of the limit bolt in the reset direction of the reset spring, a concave surface matched with the limit flange is arranged at one end of the chain block corresponding to the limit flange, a limit block boss is axially arranged at one end of the limit block facing the unlocking direction of the movable locking shaft, and a boss groove communicated with the release groove is formed in the inner side of the release groove along the reset direction of the reset spring; the limiting bolt is in the moving process, and the limiting block boss is in sliding and abutting contact with the releasing groove and the bottom surface of the boss groove. One end of the reset spring is abutted against the side wall in the boss groove in the reset direction of the limit bolt, and the other end of the reset spring is abutted against the boss of the limit block; one end of the limiting bolt is limited by the concave surface at the end part of the chain block, and the other end of the limiting bolt is limited by the boss of the limiting block; in some embodiments, the chain blocks connected in series are connected at intervals by the chain blocks of which the connecting end parts are connecting shaft end parts and the chain blocks of which the connecting end parts are movable end parts, wherein the connecting mode between the chain blocks of which the connecting end parts are movable end parts and the limiting bolts penetrating through the two ends of the chain blocks is consistent with that described above, namely the limiting bolts which are buckled by two split type fittings in a butt-inserting buckling mode and have limiting flanges at the two ends penetrate through the two ends of the chain blocks, and the limiting bolts movably limit the chain blocks through concave surfaces at the two ends of the chain blocks; the connecting end part is an integrated structure of a limiting bolt which is arranged in the chain block at the end part of the connecting shaft in a penetrating way, the connecting mode of the connecting end part is consistent with that of the connecting shaft, namely, one end of the limiting bolt of the integrated structure is movably limited by the concave surface at the end part of the chain block, and the other end of the limiting bolt is movably limited by the boss of the limiting block.

In some embodiments, a locking chute is arranged on the position of the limit bolt, which is abutted against the limit spring, and the limit spring is abutted against an inclined surface of the locking chute, so that the limit bolt is positioned in the limit bolt hole in an inclined state, and the limit bolt is prevented from being separated from the limit bolt hole. In some embodiments, the limit bolt is a limit bolt to prevent the limit bolt from being separated from the limit bolt hole.

In some embodiments, the rotation axes of the connecting end parts on the parallel connecting link blocks are on the same straight line, and the movable locking shaft end parts penetrating through the connecting end parts are connected through the connecting rod; when the connecting rod moves from the locking position of the movable locking shaft to the unlocking position, each movable locking shaft is driven by the connecting rod to move from the locking position to the unlocking position simultaneously.

In some embodiments, a supporting shaft hole is arranged in the connecting shaft end part and the movable part in a penetrating way; a supporting shaft fixedly connected with the end part of the connecting shaft and rotatably connected with the movable end part penetrates through the supporting shaft hole; the two ends of the supporting shaft penetrate through a supporting shaft locking shaft hole which comprises an inner locking shaft hole section at the end part of the connecting shaft and an inner locking shaft hole section at the movable end part; the supporting shaft is provided with a supporting shaft limiting bolt hole in a penetrating mode, the supporting shaft is axially positioned with the end portion of the connecting shaft through the limiting bolt, and the two connected end portions and the movable locking shaft are positioned through the supporting shaft so as to avoid generating stress and interfering rotary movement.

In some embodiments, a restoring torsion spring is disposed in the connecting end portion, the restoring torsion spring is sleeved on the movable locking shaft or the supporting shaft, one end of the restoring torsion spring is clamped on the movable end portion, and the other end of the restoring torsion spring is clamped on the connecting shaft end portion or the supporting shaft axially fixed to the connecting shaft end portion.

The utility model also relates to a positioning and containing device of the serial rotary locking chain, which comprises a locking shaft unlocking device and a storage body, wherein a containing channel is arranged in the containing cavity of the storage body, and the containing channel comprises a straight containing channel section with a containing port; the locking shaft unlocking device is arranged on the containing channel and positioned on one side of the position in the locking direction of the movable locking shaft; under the cooperation of the locking shaft unlocking device, the serial connection rotating locking chain can smoothly slide in the containing channel.

In certain embodiments, the locking shaft unlocking device comprises an unlocking key and an unlocking spring; an unlocking groove is formed in the storage channel at the position, corresponding to the end face of the head of the movable locking shaft, of the chain block during turning; the unlocking key is arranged in the unlocking groove, one end of the unlocking spring pushes the unlocking key, and the other end of the unlocking spring is pressed against the bottom of the unlocking groove; when the chain block turns, the unlocking key pushes the end face of the head of the movable locking shaft under the action of the pressure of the unlocking spring to force the movable locking shaft to move to the unlocking position instantly. The number of the unlocking keys is satisfied with the simultaneous unlocking of the movable locking shafts corresponding to the chain blocks during any turning. In certain embodiments, the storage body is a storage box, and a storage cavity in the storage box comprises a straight storage channel section and a spiral storage channel section connecting the storage ports; the unlocking key is arranged on the straight accommodating channel and is positioned on the side wall opposite to the axial end face of the movable locking shaft in the locking direction, which corresponds to the turning position of the chain block, in the process that the chain block in the serial rotary locking chain moves in the spiral channel, the relative rotation angle of the movable end part of each connecting end part and the movable locking shaft is smaller than a first locking angle, namely, the connecting end part of the chain block moving in the spiral channel is always kept in an unlocking state.

In some embodiments, the locking shaft unlocking device is an actuating inclined surface, and a cylindrical boss is axially arranged on the end face of the head of the movable locking shaft; in a locking state, the distance from the end face of the cylindrical boss to the chain block is greater than or equal to the effective movable distance; in the storage process, when the edge of the end face of the cylindrical boss touches the actuating inclined plane, the reactive force of the actuating inclined plane forces the movable locking shaft to move to the unlocking position.

In some embodiments, when the movable locking shaft in the locking position is turned in the receiving channel, the edge of the cylindrical boss of the movable locking shaft touches the actuating inclined surface, so that the movable locking shaft is moved to the unlocking position under the reaction force of the actuating inclined surface; in some embodiments, the actuating inclined surface is arranged on the receiving opening, and the cylindrical boss on the movable locking shaft in the unlocking position always presses against the wall of the receiving channel, so that the chain block is always in the unlocking state in the process of moving on the receiving channel; in some of these embodiments, the storage body is a storage box, and a storage cavity in the storage box contains a straight storage channel section and a spiral storage channel section; in the moving process of entering the spiral channel from the straight receiving channel, the rotating angle of each movable end relative to the corresponding movable locking shaft is smaller than the first locking angle, namely the connecting end of the chain block is always kept in an unlocking state in the moving process of entering the spiral channel from the straight receiving channel.

In some embodiments, two positioning block holes facing toward each other are disposed on the straight accommodating channel at two sides of the movable locking shaft in the radial direction, the positioning block and the positioning spring are disposed in the positioning block holes, one end of the positioning spring presses against the bottom of the positioning block hole, and the other end of the positioning spring pushes against the positioning block; positioning holes communicated with the unlocking pin holes vertically penetrate through the two axial sides of the movable locking shaft positioned in the chain block containing the movable end part; two unlocking blocks which are movably buckled are arranged in the positioning hole, and a position yielding port is arranged between the two unlocking blocks; unlocking pin holes penetrate through two ends of the chain block, the unlocking pins penetrate through the unlocking pin holes, actuating inclined plane bosses are respectively arranged on two sides of the unlocking pins in the positioning hole direction, the unlocking pins penetrate through the position yielding openings, and the downslopes of the two actuating inclined planes of the unlocking pins are respectively in sliding butt joint with the two corresponding unlocking blocks; in the process that the unlocking pin moves under pressure, the actuating inclined plane presses against the two unlocking blocks, so that the end faces of the two unlocking blocks are close to the two ends of the positioning hole oppositely.

Further preferably, the unlocking pin hole penetrated through the two ends of the chain block is shared with the limiting bolt hole, the unlocking pin is shared with the limiting bolt, two positioning block holes facing each other are arranged on the two sides of the straight accommodating channel in the direction of the two ends of the through groove of the chain block, the positioning block and the positioning spring are arranged in the positioning block holes, one end of the positioning spring is pressed against the bottom of the positioning block hole, and the other end of the positioning spring pushes the positioning block; the width of the end part of the positioning block at two sides of the axial direction of the movable locking shaft is larger than that of the through groove; positioning holes communicated with limiting bolt holes shared by the unlocking pin holes vertically penetrate through two sides of the chain block containing the movable end part in the directions of two ends of the through groove; two unlocking blocks which are movably buckled are arranged in the positioning hole, and a position yielding port is arranged between the two unlocking blocks; the two sides of the limiting bolt shared by the unlocking pin and positioned in the direction of the positioning hole are respectively provided with an actuating inclined plane boss, the limiting bolt penetrates through the position yielding port, and the descending slopes of the two actuating inclined planes of the limiting bolt are respectively in sliding butt joint with the two corresponding unlocking blocks; in the process that the limiting bolt moves under pressure, the actuating inclined plane presses against the two unlocking blocks, so that the end faces of the two unlocking blocks are close to the two ends of the positioning hole in an opposite direction. In practical embodiments, the ends of the two unlocking blocks located in the direction of the positioning hole and the ends of the two positioning blocks facing the positioning hole are rounded.

Preferably, anti-disengagement block holes vertically penetrate through the tail connecting block of the serial rotary locking chain in the direction of two ends of the through groove, two anti-disengagement blocks which are movably buckled with each other are arranged in the anti-disengagement block holes, and an anti-disengagement spring which pushes against and pushes the two anti-disengagement blocks is arranged between the two anti-disengagement blocks; two opposite end parts of the two anti-falling blocks are respectively provided with a driven inclined plane on one side in the accommodating direction; two opposite anti-falling holes which are communicated with the straight containing channel and matched with the anti-falling blocks are vertically arranged on two sides of the straight containing channel section in the direction of the positioning hole; the positioning hole is close to the containing opening relative to the two anti-falling holes, and in the process that the anti-falling block is separated from the anti-falling holes, the driven inclined plane on the anti-falling block abuts against the edge of the anti-falling hole, so that the anti-falling block is moved out of the anti-falling block holes in a driven mode; an unlocking button and a button reset spring are movably clamped in the two anti-falling holes, and the button reset spring is sleeved on the unlocking button; when the two unlocking buttons are manually pressed and pushed into the two anti-falling block holes from the anti-falling holes, the serial rotary locking chain can be completely taken out of the containing device; the ejection device is arranged at the tail end of the containing channel, and when the serial connection rotation locking chain is completely accommodated in the containing channel, the ejection device keeps applying pressure to the tail end of the serial connection rotation locking chain, so that the serial connection rotation locking chain is ejected out of a small section of the containing opening in the moment after being positioned and unlocked, and the serial connection rotation locking chain is convenient to collect.

The utility model discloses following beneficial effect has:

the utility model discloses a locking function of rotatory locking mechanism realizes in two continuous coupling end portions, has characteristics such as simple and easy, pleasing to the eye, safety and stability, long service life, easy change accessory, has very big economic value and use value, but some wide application have special requirements's product or accessory to outward appearance and structure.

2. The utility model discloses a rotatory locking mechanism can lock the function with the unblock at the locking angle of difference between two chain pieces that the realization links to each other through the setting for to the non-perfect circle cross sectional shape in activity locking shaft and locking shaft hole. Through radially being equipped with the backstop boss at activity locking shaft lateral wall, and corresponding the cooperation has been seted up to the locking angle position that needs locking to the locking shaft pore wall the backstop boss groove of backstop boss activity is realized the activity locking shaft with but mobile tip walks around unneeded locking angle position smoothly at relative rotation's in-process.

3. The relative rotation direction between the chain blocks is adjusted by setting the rotation axes of the connecting end parts connected in series of the rotary locking chain at a certain angle.

4. When the two connected chain blocks can not rotate relatively to a certain expected angle or the two connected chain blocks need to rotate relatively to a parallel position, a chain block with a shape and a length matched with each other can be connected between the two chain blocks connected at intervals so as to realize the purpose by the two chain blocks connected at intervals.

5. The utility model discloses a rotatory locking chain has compact structure, locking position intensity height, uses the accessory few, low in manufacturing cost scheduling characteristic, but wide application has special requirements's product or accessory to shape, size and performance.

6. Depending on the shape and size of the chain block, the chain block can be widely used in various fields of products or accessories, such as a rotating lever, a self-timer lever, a rotating plate, a rotating stand, a rotating table leg, a folding bicycle, a wheel with a locking function (such as a brake wheel), a pull rod or a handle for replacing a bag or a cart, and the like. The utility model discloses a multipurpose rotary locking chain replaces some tubulose telescopic links can realize folding the case and bag wholly, reduces storage space by a wide margin, easily accomodates to and can realize bending the locking to multipurpose rotary locking chain in the use, be used for adjusting direction or crookedness, can realize even taking out rotary locking chain from the box and be used for other uses; similarly, the multi-purpose rotary locking chain of the utility model can replace the handrail on the trolley, can realize the function of rotary unfolding and storage of the handrail, and even can realize the function of rotary folding of the body of the trolley, so that the volume of the whole trolley is effectively reduced, and the storage space is reduced; the utility model discloses a rotatory locking chain can also be applied to the wheel of taking locking function to the rotation of locking shaft. The utility model discloses a rotatory locking chain of multipurpose is used for replacing hinge and hinge above door, the window to carry out the function of location locking to door, window under the condition that does not use other affiliated locking accessories to avoid risks such as the tong at rotatory position, increased rotation angle range. The rotary locking chain of the utility model can be applied to the bridge construction field, such as the rapid laying of bridge deck or the telescopic bridge; additionally, the utility model discloses a rotatory locking chain can be in connection tip loading drive arrangement in order to realize the function of autogiration and locking, but wide application in various fields such as arm, gripper, robot, medical equipment.

7. The utility model discloses a location storage device of rotatory locking chain of multipurpose polyphone can effectively accomodate and expand the back to the rotatory locking chain of solitary polyphone and fix, for example be used for pull rod, push rod, flexible handrail etc..

The present invention will be further explained with reference to the accompanying drawings.

Drawings

FIG. 1 is a perspective view of a first embodiment of a multi-purpose tandem rotary lock chain in an initial configuration;

FIG. 2 is an exploded view of a multi-purpose tandem rotary lock chain of the first embodiment;

FIG. 3 is a partial cross-sectional view of a multi-purpose tandem rotary lock chain according to a first embodiment;

FIG. 4 is a view of the first embodiment of the end of the endblock of the tandem rotary lock chain having a mounting flange;

FIG. 5 is a partial cross-sectional view of a reset spring in the tandem rotary locking chain nested over a limit stop in a limit unlocked position;

FIG. 6 is an exploded view of the stop bolt, return spring, stop spring and stop block of FIG. 5;

fig. 7 is a front sectional view of the overall structure of a multi-purpose tandem rotary lock chain according to the fourth embodiment;

FIG. 8 is a schematic view of the movable locking shaft of FIG. 7;

FIG. 9 is a schematic view of the multi-purpose tandem rotary locking chain and positioning and receiving device of the fifth embodiment;

fig. 10 is an exploded view of a combination of a multi-purpose tandem rotary lock chain and a positioning and receiving device in accordance with a fifth embodiment;

FIG. 11 is an exploded view of the fifth embodiment of the chain block, handle, movable latch shaft and other accessories;

FIG. 12 is a schematic structural view of a fifth embodiment of the present invention, in which both connecting ends are between a stopper pin and an unlocking block in a free-end link block;

FIG. 13 is an axial cross-sectional view of the fifth embodiment of the return spring in a compressed state at the straight receiver channel;

FIG. 14 is a radial cross-sectional view of the fifth embodiment of the return spring in a compressed state at the straight receiver channel;

FIG. 15 is a schematic structural view of two anti-separation blocks and anti-separation springs in the fifth embodiment;

FIG. 16 is an axial cross-sectional view of a straight receiving channel in a schematic structural view of a sixth embodiment;

FIG. 17 is a seventh embodiment of a chain block between two spaced chain blocks with the axes of rotation of the two link ends perpendicular to each other;

FIG. 18 is an exploded view of the eighth embodiment of the locking shaft, chain block, return spring and end cap;

FIG. 19 is a schematic view showing a configuration in which a serial rotary lock chain is connected to both connecting ends of a parallel link block in the ninth embodiment;

FIG. 20 is an exploded view of the linkage block of FIG. 18 with its internal fittings;

FIG. 21 is a schematic view showing the entire structure of a tenth embodiment in which a link block having only one movable end is connected to each of three link shaft ends of a link block;

FIG. 22 is an exploded view of FIG. 21;

FIG. 23 is a sectional view of one of the link ends of the parallel link block in the tenth embodiment;

fig. 24 is an exploded view showing one of the link ends of the parallel link block in the tenth embodiment.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments. It should be understood that the following description of specific embodiments is only for the purpose of explanation and is not to be construed as limiting the invention.

The first embodiment is as follows: as shown in fig. 1-3, the multipurpose rotary locking chain comprises a movable locking shaft 1, a first chain block 2a, a chain block 2b including a movable end and a connecting shaft end, a last chain block 2c, a limit switch 3, a limit bolt 4, a return spring 5, a limit block 6, a limit spring 7 and a dust cover 10. In the embodiment, the movable locking shaft and the locking shaft hole are integrally in a step shape, each step section is in a regular octagonal prism shape, and in the two connected step sections, the maximum non-perfect circular cross-sectional area of the step section close to the head of the movable locking shaft is smaller than or equal to the minimum non-perfect circular cross-sectional area of the other step section; in the two connected end parts, two sides of the end part of the connecting shaft are tightly attached to two sides of the through groove 2.6; a chain block limiting bolt hole 2.3 penetrates through the two ends of the first chain block 2a and a chain block 2b which comprises a free end part and a connecting shaft end part, a movable locking shaft limiting bolt hole 1.2 penetrates through the two radial sides of the middle part of the movable locking shaft 1, and a limiting bolt 4 movably attached to the chain block limiting bolt hole 2.3 penetrates through the chain block limiting bolt hole 2.3 and the movable locking shaft limiting bolt hole 1.2; the limit switch 3 and a limit bolt 4 which is arranged in the first-link chain block 2a in a penetrating way are integrally arranged; a limiting spring hole 1.4 along the locking direction of the movable locking shaft 1 is arranged on the inner wall of the limiting bolt hole 1.2 of the movable locking shaft; two mutually communicated release grooves 4.1 and boss grooves 4.2 are arranged on the side surface of the limit bolt 4 opposite to the limit spring hole 1.4, wherein the boss groove 4.2 is close to the limit switch 3 relative to the release groove 4.1; the limiting block 6 and the limiting spring 7 are arranged in the limiting spring hole 1.4, wherein one end of the limiting spring 7 is pressed against the bottom of the limiting spring hole 1.4, and the other end of the limiting spring is pressed against the limiting block 6; the other end of the limiting block 6 is provided with a limiting block boss 6.1; under the pressure matching of the limiting spring 7, the limiting block boss 6.1 is relatively slidably pressed against the bottom of the release groove 4.1 and the boss groove 4.2 which are communicated with each other; a reset spring 5 is arranged in the boss groove, one end of the reset spring 5 is pressed against the limit bolt 4, and the other end of the reset spring is pressed against the limit block boss 6.1; in a locking state, the movable locking shaft 1 is embedded and locked with the wall of the corresponding locking shaft hole under the action of the pressure of the limiting spring 7; when the limit switch 3 is pressed to the limit bolt 4 and moves to the position where the release groove 4.1 is opposite to the limit boss 1.3, the end part of the movable locking shaft 1 overcomes the pressure of the limit spring 7 and the friction force of the wall of the locking shaft hole under the action of external force and moves to the inner wall of the limit bolt hole 1.2 of the movable locking shaft along the unlocking direction to abut against the limit bolt 4, two corresponding connecting end parts enter an unlocking state, at the moment, the external force can be cancelled after the two connected end parts rotate relatively to the required locking angle position, and the movable locking shaft 1 is embedded and locked with the corresponding locking shaft hole wall under the action of the pressure of the limit spring 7.

Second embodiment as shown in fig. 4, this embodiment is to provide a fixing flange 2c3 at the end of the last chain block 2c of the tandem rotary lock chain according to the first embodiment, and a mounting hole 2c-2 is provided on the fixing flange 2c3 to facilitate fixing of one end of the tandem rotary lock chain.

Embodiment three, as shown in fig. 5-6, the present embodiment is different from the first embodiment in that: the reset spring 5 in the embodiment is sleeved on the limit bolt 4, one end of the reset spring is propped against the limit flange, and the other end of the reset spring is propped against the bottom wall of the second hole in the limit bolt hole; the boss groove 4.2 is shortened to a length which meets the requirement that the limiting bolt 4 does not interfere with the limiting boss 1.3 in the movement, at the moment, one end of the limiting block 6 is pressed against the bottom wall of the boss groove 4.2 by the limiting block boss 6.1 or simultaneously pressed against the side surface of the limiting bolt 4 to be limited with the bottom wall of the boss groove 4.2, and the other end of the limiting block is limited by the limiting spring 7; one end of the limiting bolt 4 is limited by the concave surface at the end part of the chain block, and the other end of the limiting bolt is limited by the boss of the limiting block.

Fourth embodiment, as shown in fig. 7 to 8, the difference of this embodiment compared with the above embodiments is that the movable end portion locking shaft hole 2b.1 and the corresponding non-perfect circular cross section of the movable locking shaft are made into twelve teeth, the angle variation value of the locking position between each two connected chain blocks 2 is 30 degrees, the number of two lockable positions is increased and the angle variation value of the locking position is decreased compared with the regular octagonal frustum shape of the first embodiment; the end face of the limit bolt 4 in the reset direction is provided with a matched arc surface, the angle corresponding to the arc length of the arc surface is 95 degrees, 3 different locking angle positions are formed between two chain blocks which are respectively connected in the initial state of the rotary locking chain, and the aim that the limit bolt 4 which is respectively connected can be pushed to move to the limit unlocking position by pressing the limit switch 3 in the locking state of three relative different angle positions between two connected end parts is achieved. As shown in fig. 7, each connecting end is in a locked state, each limiting bolt 4 is in a limiting and unlocking position, and the limiting bolts 4 respectively penetrating through the first link chain block, the second link chain block and the third link chain block are in three different locking angle positions.

Fifth embodiment, as shown in fig. 9-15, this embodiment further details the present invention by combining a multi-purpose tandem pivoting chain with a positioning and storage device for the tandem chain. The serial connection rotation locking chain in the embodiment comprises a movable locking shaft 1, a first section chain block 2a used as a handle, a handle cover 2a1, a first section chain block pin shaft 2a2, a chain block 2b with two movable end parts, a chain block 2e with two end parts used as connecting shaft end parts, a last section chain block 2c, a limit switch 3, a limit bolt 4, a reset spring 5, a limit block 6, a limit spring 7 and a pre-tightening spring 8; the first-link chain block 2a is used as a handle and only comprises a chain block with a connecting shaft end part, the middle-link chain block is formed by connecting two chain blocks with different specifications at intervals, wherein the two end parts are both limiting bolts 4a which are arranged in the chain block 2b of the movable end part in a penetrating way and share with an unlocking pin and are provided with actuating inclined planes, two opposite side surfaces on each chain block 2 are parallel to each other, and the rotating axes of each connecting end part are parallel to each other; the storage device of the present embodiment includes a storage case 11, a positioning block 12, a positioning spring 13, an unlocking block 14, an unlocking block stopper spring 20, an anti-drop block 15, an anti-drop spring 16, an unlocking key 17, an unlocking spring 18, and an ejector spring 19.

FIGS. 9 and 10 show a front view of the rotational lock chain received in the pocket and a partially exploded view of the angled back; wherein, a first link chain block 2a used as a handle is arranged on a handle support 11.4 positioned at the receiving opening; a handle hole 2a-1 along the direction of the end part of the connecting shaft is arranged on the end surface of one end opposite to the end part of the connecting shaft of the first-link chain block, a handle cover 2a1 is connected to the handle hole 2a-1 through a pin shaft 2a2, and a hole cover groove 2a-2 which can enable the handle cover 2a1 and the pin shaft 2a2 to rotate and slide into simultaneously is arranged in the handle hole 2 a-1; the handle hole 2a-1 can be used for sleeving a camera bracket or an umbrella and other products or storing emergency articles; the limit switch 3 is arranged at the end part of the reset direction of a limit bolt 4 which is arranged in the connecting shaft end part of the first-link chain block 2a in a penetrating way; according to the requirement of the installation position, the handle support 11.4 can be arranged by rotating 180 degrees around the straight receiving channel, and the handle support is arranged in two opposite directions relative to the straight receiving channel section as shown in fig. 9 and 10; two connected positioning block holes 11.2 and two anti-falling holes 11.3 are respectively arranged at the inlet of the straight containing channel and positioned at the radial two sides of the movable locking shaft in the straight containing channel, wherein the positioning block holes 11.2 are close to the containing opening relative to the anti-falling holes 11.3; the positioning block 12 and the positioning spring 13 are arranged in the positioning block hole 11.2, one end of the positioning spring 13 in the positioning block hole 11.2 far away from one side of the spiral containing channel is pressed against the positioning block 12, and the other end of the positioning spring 13 is pressed and inserted on the positioning spring baffle plate 11.5 arranged at the opening part of the positioning block hole 11.2; a positioning block mounting hole is formed in the side edge of the positioning block hole between the straight accommodating channel and the spiral accommodating channel, and a blocking piece inserting groove matched with a positioning block side blocking piece 11.6 is formed in the positioning block mounting hole; because the rotary locking chain of the embodiment is composed of two chain blocks with different specifications and sizes, and because the lengths are different, each chain block must unlock the connecting end parts at the two ends of the chain block at the same time when turning, three unlocking grooves 11.7 are needed to be arranged at the turning position on the straight receiving channel and at the position opposite to the end surface of the head part of the movable locking shaft; an unlocking key 17 and an unlocking spring 18 are respectively arranged in each unlocking groove 11.7, wherein one end of the unlocking spring 18 is pressed against the unlocking key 17, and the other end of the unlocking spring 18 is pressed against the unlocking spring baffle plate 11.8; when each chain block turns, the corresponding movable locking shaft must simultaneously push the head end surface of the chain block to axially move to the unlocking position through the unlocking key 17. A groove which is matched with the tail of the movable locking shaft 1 to release to move towards the unlocking direction is arranged on the wall of the containing channel which is positioned at one side of the unlocking direction of the movable locking shaft; the spiral containing channel is satisfied that the included angle between each two chain blocks connected sliding in the spiral containing channel is more than 90 degrees and less than 180 degrees, the section of the non-perfect circle cross section of the movable locking shaft and the locking shaft hole is in a shape of a regular octagonal frustum, so that self-locking is generated between the two connected chain blocks when the included angle is 135 degrees, and meanwhile, in order to avoid that the partial rotary locking chain outside the containing box 11 generates self-locking at an unnecessary included angle of 225 degrees in the using process to prevent normal use, a stopping boss 1.5 is radially arranged on the movable locking shaft, and stopping boss grooves 2.7 matched with the stopping boss 1.5 for moving are arranged on the wall of the locking shaft hole corresponding to the stopping boss 1.5 at three angles of 90 degrees, 180 degrees, 270 degrees and the like, at two connected end parts needing locking.

The chain block 2d with two movable end parts is provided with positioning holes 2d-3 penetrating through the radial two sides of the movable locking shaft 1, two movably buckled unlocking blocks 14 are arranged in the positioning holes 2d-3, two unlocking block limiting springs 20 are arranged between the two unlocking blocks 14, and the unlocking blocks play roles in preventing dust of the positioning holes in the chain block outside the containing channel, preventing noise generated by shaking of the unlocking blocks in the using process and the like. The limiting bolts 4a which are arranged in the chain blocks with the two movable end parts at the two ends penetrate through the position-giving openings in the middle of the two unlocking blocks in a mutual insertion mode through two split fittings with flanges and are fixedly connected, bosses with actuating inclined surfaces 4a.1 are respectively arranged at the two sides of the limiting bolts 4a in the direction of the positioning holes, and the downslope parts of the two actuating inclined surfaces 4a.1 are respectively in sliding contact with the two corresponding unlocking blocks 14; in the process that the limiting bolt 4a is pressed to move, the actuating inclined surfaces 4a.1 at the two sides of the limiting bolt press against the two unlocking blocks 14, so that the end surfaces of the two unlocking blocks 14 are forced to be close to the two ends of the positioning hole 2d-3 oppositely. The ends of the two unlocking blocks 14 positioned in the direction of the positioning hole 2d-3 and the ends of the two positioning blocks 12 facing the positioning hole 2d-3 are rounded. Two sides of the last-link chain block 2c in the direction of the positioning hole 2d-3 are provided with anti-disengaging block holes 2c-5, and two movably buckled anti-disengaging blocks 15 and anti-disengaging springs 16 are arranged in the anti-disengaging block holes 2c-5, wherein two ends of each anti-disengaging spring 16 respectively press the two anti-disengaging blocks 15, so that the two anti-disengaging blocks 15 respectively press towards two sides of the straight accommodating channel wall; when the serial rotary locking chain is pulled out to the limit length from the storage box 11, the anti-falling block 15 in the tail chain block 2c slides into the anti-falling hole 11.3, the upper wall of the anti-falling hole 11.3 blocks the flat side wall 15.2 facing the direction of the storage opening on the anti-falling block 15, the anti-falling block is prevented from moving towards the direction of the storage opening, and at the moment, the serial rotary locking chain is pulled out to the limit length from the storage box. When the anti-drop block 15 moves towards the receiving channel, the driven inclined surface 15.1 of the anti-drop block touches the anti-drop hole 11.3 and is forced to retreat into the anti-drop block hole 2 c-5. In the process that the limit switch 3 is pressed to move to the limit unlocking position, the actuating inclined planes 4a.1 on two sides of the limit bolt 4a corresponding to the positioning block 12 simultaneously press the two unlocking blocks 14 to push the positioning block 12 into the positioning block hole 11.2, and meanwhile, the unlocking blocks 14 in other chain blocks 2d on the straight containing channel also abut against the straight containing channel wall, so that the serial rotary locking chain prevents the positioning block 12 from entering the positioning hole 11.2 in the moving process; the tail end of the tail link block is provided with an ejection device hole, an ejection spring 19 penetrates into the ejection device hole, one end of the ejection spring is abutted against the bottom wall of the ejection device hole, and the other end of the ejection spring is abutted against the blocking wall at the end of the spiral containing channel.

Sixth embodiment, as shown in fig. 16, the present embodiment is different from the fifth embodiment in that an unlocking slant 11.9 provided at the storage opening is used as a locking shaft for unlocking. The end face of the movable locking shaft in the locking direction is provided with a cylindrical boss 1.1, in the storage process, the edge of the cylindrical boss 1.1 abuts against the actuating inclined plane to force the movable locking shaft to move to the unlocking position under the action of the reaction force of the actuating inclined plane and then always abut against the storage channel wall, at the moment, the tail of the movable locking shaft enters into a groove which is formed in the side wall of the storage channel in a clearance fit mode, and the movable locking shaft always slides in the storage channel in the unlocking state.

In a seventh embodiment, as shown in fig. 17, the angle between the rotation axes of the two adjacent connecting end portions of the rotary lock chain is set to 90 degrees, and the two spaced link blocks are rotated in two orthogonal directions within a predetermined angle range with respect to the intermediate link block. According to the present embodiment, the relationship between the rotation axes of the two ends of one or more chain blocks 2 in the serial rotary locking chain in the above embodiments can be changed to be perpendicular to each other, and particularly, in the fifth embodiment or the sixth embodiment, the accommodating channels are set according to the freedom direction of the connecting end part on the serial rotary locking chain.

Eighth embodiment, as shown in fig. 18, unlike the above embodiments, the present embodiment arranges the limit spring 7 between the bottom wall of the end cap 21 connected to the movable end of the chain block 2 and the end face of the tail of the movable lock shaft 1.

A thread circular groove 2b.2 is formed in one side, located in the unlocking direction of the movable locking shaft, of the chain block 2b, and a thread hollow column 21.1 which is movably matched with the tail section of the movable locking shaft is arranged on the end cap 21; in a locking state, the distance from the inner bottom wall of the threaded hollow column 21.1 to the tail end face of the movable locking shaft 1 is more than or equal to the movable effective distance; the limiting spring 7 is arranged between the tail end face of the movable locking shaft 1 and the inner bottom wall of the threaded hollow column 21.2, one end of the limiting spring 7 abuts against the bottom wall of the threaded hollow column 21.1, and the other end of the limiting spring abuts against the tail end face of the movable locking shaft 1.

Example nine, as shown in fig. 19 to 20, this example shows two serial rotary lock chains connected to a parallel link block 2f having two link shaft ends, wherein the specific structure of the serial rotary lock chain is described with reference to the previous examples, and the description of this example is not repeated. The device comprises a movable locking shaft 1, a parallel-connection chain block 2f, a chain block 2b with a free end part and a connection shaft end part, a tail chain block 2c, a limit switch 3, a limit bolt 4 and a reset spring 5, wherein the limit switch 3 comprises a button 3a, a button reset spring 3c, a reset spring stop 3b, two button connecting rods 3d, a chain rod reset spring 3e and a blocking block 3 f. Button holes 2f-1 penetrate through the middle position of the parallel connection chain block 2f and the two sides of the parallel connection chain block in the moving direction of the limiting bolt 4; the lower end of the button hole 2f-1 is fixedly provided with a reset spring stop dog 3b through a fixing bolt 3 k; a clamping hook boss 3.4 is arranged on two sides below the button 3 a; a button reset spring 3c is arranged between the button 3a and the reset spring stop 3b, so that the button 3a is movably clamped in the button hole 2 f-1. The button connecting rod 3d is arranged in the parallel chain block 2f in a penetrating way, and the blocking blocks 3f are respectively buckled on the mounting openings of the button connecting rod 2d at the two ends of the parallel chain block 2 f; two opposite ends of the button chain rod 3d are respectively provided with a chain rod reset spring 3e, one end of the connecting rod reset spring 3e is pressed against the step wall of the button chain rod 3d, and the other end is pressed against the block 3 f. Two ends of the button connecting rod 3d are provided with a first abutting inclined plane 3.3; one end of the limiting bolt 4, which is positioned in the resetting direction of the resetting spring 7, is provided with a second abutting inclined surface 4.3, and the first abutting inclined surface 3.3 abuts against the second abutting inclined surface 4.3; two sides of the lower part of the button 3a adjacent to the hook lug boss are respectively provided with an actuating inclined plane 3.1 which is abutted against two opposite ends of the button connecting rod 3 d.

When the button 3a of the limit switch 3a is pressed, the actuating inclined planes 3.1 at two sides of the button 3a push the button connecting rods 3d, so that the first 3.3 of the abutting inclined planes at two opposite ends of the two button connecting rods 3d abut against the second 4.3 of the abutting inclined planes on the limit bolt 4, and the limit bolt 4 is pushed to a limit unlocking position. In this embodiment, two serial rotary locking chains may be respectively received in the positioning receiving device of the serial rotary locking chain according to the fifth or sixth embodiment, or received in a positioning receiving box having two receiving cavities.

Embodiment ten, as shown in fig. 21-24, a multipurpose parallel-connection rotary locking chain comprises a parallel-connection chain block 2h with three connecting shaft ends, three chain blocks 2g with only one movable end, a movable locking shaft 1, a limiting spring 7, a supporting shaft 23, a reset torsion spring 24, a limiting bolt 4 and a connecting rod 22; the three connecting shaft ends of the parallel connecting chain block 2h are respectively connected with a chain block 2g only comprising a movable end, the locking directions of the movable locking shafts 1 in each connecting end are the same, and the three rotation axes are on the same straight line, wherein the movable locking shafts 1 and the non-perfect circular cross section sections of the corresponding locking shaft hole walls are in a regular octagonal frustum shape as a whole; the adjacent movable locking shafts 1 are in bolt connection with the tail parts of the movable locking shafts 1 through connecting rods 22 and are abutted against the head parts of the movable locking shafts 1.

A connecting shaft end part supporting shaft hole 2h.2, a movable end part supporting shaft hole 2g.2 and a movable end part locking shaft hole 2g.1 which are vertical to each other and pass through two sides of the through groove and are communicated with each other penetrate through the two sides of the connecting shaft end part and the two sides of the movable end part; the supporting shaft 23 penetrates through the connecting shaft end supporting shaft hole 2h.2 and the movable end supporting shaft hole 2g.2, is fixed with the connecting shaft end in the circumferential direction and is rotatably connected with the movable end; wherein, the inner walls of the movable end supporting shaft holes 2g.2 penetrating through the two sides of the through groove 2g.6 and the outer walls of the corresponding supporting shaft 23 sections are cylindrical walls; a supporting shaft locking shaft hole 23.1 comprising an inner locking shaft hole at the end part of the connecting shaft and an inner locking shaft hole at the movable end part of a part of section axially penetrates through the two ends of the supporting shaft 23;

a connecting shaft end limiting bolt hole 2h.3, a supporting shaft limiting bolt hole 23.3 and a movable locking shaft limiting bolt hole 1.2 which vertically pass through a through hole 2g.3 arranged on the bottom wall of the through groove 2g.6 are simultaneously penetrated through the end part of the connecting shaft, the radial two sides of the movable locking shaft 1 and the radial two sides of the supporting shaft 23; the limiting bolt 4 penetrates through the mounting through hole 2g.3 until entering the bottom wall of the limiting bolt hole 2h.3 at the end part of the connecting shaft; the end part of the connecting shaft is fixedly connected with the supporting shaft 23 through a limiting bolt 4; expanding the movable locking shaft limiting bolt hole 1.2 towards the locking direction of the movable locking shaft until the distance between the inner wall of the limiting bolt hole 1.2 of the movable locking shaft 1 in a locking state and the side wall of the limiting bolt 4 opposite to the inner wall is greater than the effective movable distance, and arranging a limiting spring hole 1.4 along the locking direction of the movable locking shaft 1 on the side wall of the limiting bolt hole 1.2 of the movable locking shaft; the limiting spring 7 is arranged in the limiting spring hole 1.4, one end of the limiting spring is pressed against the bottom wall of the limiting spring hole 1.4, and the other end of the limiting spring is pressed against the limiting bolt 4; the movable locking shaft 1 is axially and movably limited in the locking shaft hole through a limiting spring 7 and a limiting bolt 4; the side wall of the limit bolt 4 is provided with a chute 4.5 which is propped against the limit spring 7, so that the limit bolt 4 is propped against the bottom wall of the limit bolt hole 2h.3 at the end part of the connecting shaft under the oblique pressure of an oblique plane, and the limit bolt 4 is prevented from entering the installation through hole 2g.3 to cause interference with the movable end part;

a second hole serving as a reset torsion spring hole 2h.0 is formed in the inner wall of the end part supporting shaft hole 2h.2 close to one end of the head part of the movable locking shaft, a movable end part torsion spring limiting groove 2g.4 matched with one end of the reset torsion spring 24 to be inserted is axially formed in the side wall of the through groove 2g.6, and a connecting shaft end part torsion spring limiting hole 2h.5 matched with the other end of the reset torsion spring 24 to be inserted is radially formed in the inner wall of the reset torsion spring hole 2 h.0; in the installation process of the reset torsion spring 24, one end of the reset torsion spring 24 is inserted into the torsion spring limiting hole 2h.5 at the end part of the connecting shaft, then the reset torsion spring 24 is installed into the reset torsion spring hole 2h.0, and the other end of the reset torsion spring enters the movable end part supporting shaft hole 2g.2 through deformation and is clamped in the movable end part torsion spring limiting groove 2g.4 when the movable end part and the connecting shaft end part are oppositely inserted;

when the connecting rod 22 close to the locking direction of the movable locking shaft 1 is pushed towards the unlocking direction of the movable locking shaft under the action of external force, each movable locking shaft 1 is driven by the connecting rod 22 to simultaneously move from the locking position to the unlocking position; when the external force is removed, the connecting rod 22 is driven by the reset spring 7 to simultaneously reset to the locking position with the movable locking shaft 1.

The above embodiments are only exemplary embodiments of the present invention, and are not intended to limit the present invention, and the present invention can be realized in other specific forms without departing from the spirit or essential characteristics of the present invention. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive; the scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

Claims

1. The utility model provides a rotatory locking chain of multipurpose, includes two at least chain pieces, activity locking shaft and stop device, its characterized in that: the chain block is characterized in that mutually communicated locking shaft holes containing non-regular circular cross section sections are arranged in two connected end parts between the chain block and the chain block in a penetrating manner, movable locking shafts containing non-regular circular cross section sections are arranged in the locking shaft holes in a penetrating manner and matched with the locking shaft holes, and when the movable locking shafts are simultaneously embedded and locked with the inner walls of the locking shaft holes in the two connected end parts under the action of the limiting device, the two connected end parts enter a locking state; when the movable locking shaft is acted by force and moves towards the unlocking direction of the movable locking shaft to the unlocking position which enables at least one chain block to rotate freely around the movable locking shaft within a specified angle range, the two connected end parts enter the unlocking state.

2. The multipurpose rotary locking chain of claim 1 wherein: the two connected end parts are respectively a movable end part and a connecting shaft end part, wherein at least one connecting end part is provided with a through groove, and the locking shaft hole is vertical to two sides of the through groove; the two connected end parts are connected in a plug-in manner; the end part of the connecting shaft and the movable locking shaft are integrally connected in a mode of being incapable of rotating relatively directly or indirectly.

3. The multi-purpose rotary lock chain of claim 1 or 2, wherein: the movable locking shaft and the locking shaft hole are integrally in a step shape, each non-perfect-circle step section is provided with a taper matched with each other in an embedded mode, and the non-perfect-circle cross section of each step section is an axisymmetric figure with three or more symmetric axes; in two adjacent steps, the maximum non-perfect circular cross-sectional area of the step close to the locking direction of the movable locking shaft is less than or equal to the minimum non-perfect circular cross-sectional area of the other step.

4. The multi-purpose rotary locking chain of claim 1, wherein: the limiting device comprises a limiting spring, and the movable locking shaft is axially movably limited through the limiting spring; and in a locking state, the movable locking shaft is embedded and locked with the wall of the locking shaft hole in the two connected end parts through the limiting spring.

5. The multi-purpose rotary locking chain of claim 2, wherein: the limiting device also comprises a limiting bolt, and the through grooves are formed in two sides of the movable end part in the two connected end parts; a chain block limiting bolt hole and a locking shaft limiting bolt hole which are communicated with each other are simultaneously arranged at the end part of the connecting shaft and the two radial sides of the movable locking shaft in a penetrating manner, and the limiting bolt is arranged in the locking shaft limiting bolt hole and the chain block limiting bolt hole which is axially positioned with the locking shaft limiting bolt hole in a penetrating manner; the locking shaft limiting bolt hole is axially widened towards the locking direction of the movable locking shaft until the movable distance between two sides opposite to the limiting bolt is larger than or equal to the movable effective distance of the movable locking shaft moving axially from the unlocking position to the locking position.

6. The multi-purpose rotary locking chain of claim 4, wherein: an end cap is arranged on one side, located in the unlocking direction of the movable locking shaft, of the chain block, and a hollow column movably matched with the tail section of the movable locking shaft is arranged on the end cap; in a locking state, the distance from the bottom wall of the hollow column to the tail end face of the movable locking shaft is greater than or equal to the effective movable distance of the movable locking shaft moving axially from the unlocking position to the locking position; the limiting spring is arranged between the tail of the movable locking shaft and the bottom wall of the hollow column, one end of the limiting spring is abutted against the bottom wall of the hollow column, and the other end of the limiting spring is abutted against the end face of the tail of the movable locking shaft.

7. The multipurpose rotary locking chain according to claim 5, wherein a limiting spring hole is formed on the inner wall of the limiting bolt hole of the locking shaft in the locking direction of the movable locking shaft; the limiting spring is arranged in the limiting spring hole, one end of the limiting spring abuts against the bottom wall of the limiting spring hole, and the other end of the limiting spring directly or indirectly abuts against the limiting bolt.

8. The multipurpose rotary locking chain according to claim 5 or 7, wherein the limiting device further comprises a limiting switch and a return spring, and the limiting bolt hole penetrates through two ends of the chain block with two connecting ends; the limit switch is connected to the end part of the limit bolt penetrating through the first serial link block and positioned in the resetting direction of the limit bolt; a limiting boss axially extending towards the unlocking direction of the movable locking shaft is arranged on the inner wall of the limiting bolt hole of the movable locking shaft, and a release groove for releasing the limiting boss at a limiting unlocking position by the limiting bolt is axially arranged on one side of the limiting bolt facing the limiting boss; the limiting bolt is movably connected with the corresponding chain block in a limiting way through a resetting spring arranged in a limiting bolt hole; when the rotary locking chain is in an initial state, each connecting end part is in a locking state, and limiting bolts penetrating through the connected serial chain blocks are in a mutually-butted reset state; when the limit switches are pressed to the positions after the reset springs are compressed, each limit bolt moves to the limit unlocking position.

9. A modular storage system for a chain of pivotal locks comprising a multipurpose chain of any one of claims 1 to 8, wherein: the positioning and containing device comprises a locking shaft unlocking device and a storage body, a containing channel is arranged in a containing cavity of the storage body, and the containing channel comprises a straight containing channel section with a containing opening; the locking shaft unlocking device is arranged on the containing channel and positioned on one side of the position in the locking direction of the movable locking shaft; under the cooperation of the locking shaft unlocking device, the serial connection rotating locking chain can smoothly slide in the containing channel.

10. The apparatus of claim 9, wherein the chain comprises: the locking shaft unlocking device comprises an unlocking key and an unlocking spring; an unlocking groove is formed in the storage channel at the position, corresponding to the end face of the movable locking shaft head, of the chain block during turning; the unlocking key is arranged in the unlocking groove, one end of the unlocking spring pushes the unlocking key, and the other end of the unlocking spring is pressed against the bottom of the unlocking groove; when the chain block turns, the unlocking key pushes the end face of the movable locking shaft head under the action of the pressure of the unlocking spring to force the movable locking shaft to instantaneously move to an unlocking position; the number of the unlocking keys is satisfied with the simultaneous unlocking of the movable locking shafts corresponding to the chain blocks during any turning.

11. The apparatus of claim 9, wherein the chain comprises: the locking shaft unlocking device is an actuating inclined plane, and a cylindrical boss is axially arranged on the end face of the head of the movable locking shaft; in a locking state, the distance from the end face of the cylindrical boss to the chain block is greater than or equal to the effective movable distance; in the storage process, when the edge of the end face of the cylindrical boss touches the actuating inclined plane, the reactive force of the actuating inclined plane forces the movable locking shaft to move to the unlocking position.

12. The apparatus of claim 10 or 11, wherein the chain comprises: the positioning and accommodating device comprises a positioning and unlocking device, and the positioning and unlocking device comprises a positioning block, a positioning spring, an unlocking pin and an unlocking block; two positioning block holes which are mutually facing are formed in the straight accommodating channel and positioned on two sides of the movable locking shaft in the radial direction, the positioning block and the positioning spring are arranged in the positioning block holes, one end of the positioning spring is pressed against the bottom of the positioning block hole, and the other end of the positioning spring pushes the positioning block; two ends of the chain block are penetrated with unlocking pin holes, and the unlocking pins are penetrated in the unlocking pin holes; positioning holes communicated with the unlocking pin holes vertically penetrate through two axial sides of the movable locking shaft positioned in the chain block; two unlocking blocks which are movably buckled are arranged in the positioning hole, and a position yielding port is arranged between the two unlocking blocks; the two sides of the unlocking pin in the direction of the positioning hole are respectively provided with an actuating inclined plane boss, the unlocking pin penetrates through the position yielding port, and the downslopes of the two actuating inclined planes of the unlocking pin are respectively in sliding butt joint with the two corresponding unlocking blocks; in the process that the unlocking pin moves under pressure, the actuating inclined plane presses against the two unlocking blocks, so that the end faces of the two unlocking blocks are close to the two ends of the positioning hole oppositely.

13. The apparatus of claim 12, wherein the chain comprises: the accommodating device also comprises an ejection device and an anti-drop and extraction device, wherein the anti-drop and extraction device comprises an anti-drop block, an anti-drop spring, an unlocking button and a button reset spring; anti-drop block holes vertically penetrate through the tail connecting block of the serial rotary locking chain in the direction of two ends of the through groove, two anti-drop blocks which are movably buckled with each other are arranged in the anti-drop block holes, and an anti-drop spring which supports and pushes the two anti-drop blocks is arranged between the two anti-drop blocks; two opposite end parts of the two anti-falling blocks are respectively provided with a driven inclined plane on one side in the receiving direction; two opposite anti-falling holes which are mutually communicated with the straight accommodating channel and matched with the anti-falling blocks are vertically arranged on two sides of the straight accommodating channel section in the direction of the positioning hole; the positioning hole is close to the containing opening relative to the two anti-falling holes, and in the process that the anti-falling block is separated from the anti-falling holes, the driven inclined plane on the anti-falling block abuts against the edge of the anti-falling hole, so that the anti-falling block is moved out of the anti-falling block holes in a driven mode; an unlocking button and a button return spring are movably clamped in the two anti-falling holes, and the button return spring is sleeved on the unlocking button; when the two unlocking buttons are manually pressed and pushed into the two anti-falling block holes from the anti-falling holes, the serial rotary locking chain can be completely taken out of the containing device; the ejection device is arranged at the tail end of the containing channel, and when the serial connection rotation locking chain is completely accommodated in the containing channel, the ejection device keeps applying pressure to the tail end of the serial connection rotation locking chain, so that the serial connection rotation locking chain is ejected out of a small section of the containing opening in the moment after being positioned and unlocked.