CN209874839U - Steel wire rope tension automatic regulating device and glass lifter comprising same - Google Patents
Steel wire rope tension automatic regulating device and glass lifter comprising same Download PDFInfo
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- CN209874839U CN209874839U CN201920463940.2U CN201920463940U CN209874839U CN 209874839 U CN209874839 U CN 209874839U CN 201920463940 U CN201920463940 U CN 201920463940U CN 209874839 U CN209874839 U CN 209874839U
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Abstract
The utility model discloses a wire rope tension automatic regulating apparatus and contain its glass-frame riser, wire rope tension automatic regulating apparatus includes: the screw rod, the nut, the elastic piece and the shell; one end of the screw rod is abutted against the flexible shaft pipe sleeved outside the steel wire rope, and the other end of the screw rod penetrates through the nut and the shell; the screw rod is provided with a coaxial through hole for penetrating a steel wire rope along the axis direction of the screw rod; one end of the elastic piece is abutted against the screw rod, and the other end of the elastic piece is abutted against the shell; the nut is accommodated in the inner cavity of the shell; the nut is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod; the contact position of the shell and the nut is provided with a limiting component to limit the unidirectional rotation of the nut when the screw rod moves towards one side of the flexible shaft pipe under the elastic action of the elastic part. The utility model discloses to forming closed loop and partly or the automatic absorption of the free length that surpasss that the flexible central siphon was located to whole cover in the use, avoid being equipped with the mechanism of this wire rope and break down.
Description
Technical Field
The utility model relates to the technical field of accessories, indicate a wire rope tension automatic regulating apparatus especially and contain its glass-frame riser.
Background
In the existing rope wheel type glass lifter mechanism, a steel wire rope is divided into two sections to work, and the two sections are in two stress states; conversely, when the glass goes down, the next steel wire rope is tensioned and stressed, the previous steel wire rope is in a loose state, and the steel wire rope forms a closed loop in the system.
In the lifter mechanism, the transmission of the force for driving the glass to move up and down is completed by the steel wire rope, and the steel wire rope needs to keep smaller free length so as to ensure that the steel wire rope has reasonable tensioning degree, achieve reasonable transmission efficiency and ensure the normal operation of the lifter mechanism. However, because the steel wire rope is in a stressed state in work, each relatively moving part in the lifter mechanism is abraded after being stressed, and the free length of the steel wire rope is gradually increased; or manufacturing tolerances of the various parts of the riser can result in excessive free length of the wire rope. When the free length of the steel wire rope is too large, the motor drives the wire winding drum to rotate and needs to tighten the free length part, the part belongs to an idle stroke, uneven resistance generated by the too large idle stroke causes running abnormal sound, the running parallelism of two sliding blocks bearing glass in the lifter mechanism with a double-guide-rail structure is changed, the glass is inclined, and the phenomenon of difficult glass lifting can occur in severe cases.
In addition, in the frameless vehicle door, the upper half part of the vehicle door is not provided with a circle of door frame and a guide groove like a traditional vehicle door, when the glass runs upwards, the glass is not restrained and supported by the guide groove of the traditional vehicle door in the direction of X, Y, the glass needs to be completely restrained by a lifter, the glass is ensured to be always attached to an adhesive tape of the side wall of the vehicle in the running process, and the glass smoothly enters the top groove on the side wall of the vehicle after running to the top. Meanwhile, when the glass stays at any position in the stroke, the slide block needs to firmly clamp the glass so as to ensure that the glass keeps stable in the driving process. If the free length of the steel wire rope in the lifter is too large, the effective tension of the steel wire rope cannot be guaranteed, then the glass cannot be correctly attached to the rubber strip of the side wall of the automobile, the glass can shake and make abnormal sound, and the glass cannot reach the effective sealing, so that wind noise or water leakage and other faults occur.
Disclosure of Invention
The utility model aims at providing a wire rope tension automatic regulating apparatus and contain its glass-frame riser, utilize the spiro union of screw rod and nut, and spacing subassembly to limit the screw rod and can only be along the axial motion and can not the rotary motion, the nut can only unidirectional rotation and can not the counter-rotation simultaneously, and then realize that the screw rod can only make unidirectional motion along the axial; when the tensile force of the steel wire rope is not enough, the elastic part pushes the screw rod to move towards one end of the flexible shaft pipe due to the reduction of the thrust of the flexible shaft pipe, and meanwhile, the nut is driven to rotate in a single direction, but when the thrust of the flexible shaft pipe is larger than the elastic force of the elastic part, the elastic part can not retract due to the single-direction movement characteristic of the screw rod, so that the automatic elimination and absorption of the free length of the steel wire rope in the system by the device are realized, and the effective tension of the steel wire rope.
The utility model provides a technical scheme as follows:
an automatic tension adjusting device for a steel wire rope, comprising:
the screw rod, the nut, the elastic piece and the shell;
one end of the screw rod is abutted to the flexible shaft pipe sleeved on the outer side of the steel wire rope, and the other end of the screw rod penetrates through the nut and the shell;
the screw rod is provided with a coaxial through hole for penetrating the steel wire rope;
one end of the elastic piece is abutted against the screw rod, and the other end of the elastic piece is abutted against the shell;
the nut is accommodated in the inner cavity of the shell;
the nut is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod;
and a limiting component is arranged at the contact position of the shell and the nut so as to limit the unidirectional rotation of the nut when the screw rod moves towards one side of the hose pipe under the action of the elastic force of the elastic part.
In the technical scheme, the screw rod is limited to move only along the axial direction but not to rotate by utilizing the screw connection of the screw rod and the nut and the limiting component, and meanwhile, the nut can only rotate in a single direction but not rotate in the reverse direction, so that the screw rod can only move in a single direction along the axial direction; when the tension of the steel wire rope is not enough, the elastic part pushes the screw rod to move towards one end of the flexible shaft pipe due to the reduction of the thrust of the flexible shaft pipe, and meanwhile, the nut is driven to rotate in a single direction, but when the thrust of the flexible shaft pipe is larger than the elastic force of the elastic part, the screw rod cannot retract due to the single-direction movement characteristic, so that the device automatically eliminates and absorbs the free length of the steel wire rope in the system, the effective tension of the steel wire rope in the system is ensured, and the problem that the mechanism provided with the steel wire rope fails due to the fact that the free length of the steel wire rope is lengthened is effectively avoided (for example, the glass lifter cannot be correctly attached to an adhesive tape of the side wall of an automobile due to the overlong free length of the steel wire rope, the glass shakes and abnormal sound. More preferably, because the elastic component sets up between screw rod and shell, guaranteed this device to the automatic absorption in real time of wire rope's excess free length for the response of this device is timely and reliable.
Further preferably, a concave-convex matching structure extending along the axial direction of the screw is arranged between the outer side wall of the screw and the inner side wall of the shell, so that the screw moves towards one end of the hose pipe along the axial direction of the screw under the action of the elastic force of the elastic piece and cannot rotate circumferentially.
In the technical scheme, the screw rod is guaranteed to move linearly only after being subjected to axial pressure from the flexible shaft tube through the concave-convex matching structure, so that the balance of the device on the freedom degree absorption of the steel wire rope is guaranteed, and the stability of the mechanism provided with the closed-loop steel wire rope in operation is guaranteed.
Further preferably, the limiting assembly comprises an elastic sheet and ring teeth; the ring teeth comprise more than one inner engaging ratchet teeth, and step surfaces used for being abutted to the end parts of the elastic sheets are formed on the end surfaces of one sides of the inner engaging ratchet teeth in the circumferential direction of the ring teeth so as to limit the one-way rotation of the nut.
In the technical scheme, the nut can rotate when moving towards one end of the flexible shaft pipe under the action of the elastic force of the elastic piece by utilizing the deformability of the elastic piece, but the nut cannot rotate in the opposite direction under the thrust of the flexible shaft pipe, and the extended screw cannot retract again, so that the device can automatically absorb the free length exceeding the steel wire rope, and has the advantages of compact and simple structure, easiness in realization and good effect.
Further preferably, the nut comprises a bolt connection section and a limit section; the threaded section is in threaded connection with the screw; the limiting section is provided with symmetrically arranged through grooves, the elastic sheet is arranged on the side wall of each through groove, and the elastic sheet is outwards stretched along the outer diameter tangent of the limiting section; the ring teeth are arranged on the inner wall of the inner cavity at positions corresponding to the elastic sheets.
Among this technical scheme, the shell fragment outwards opens along tangential direction, has guaranteed that the shell fragment can carry out the butt with the inner gearing ratchet tooth of ring tooth, guarantees that the nut can only unidirectional rotation, improves the reliability of this device.
Further preferably, the outer side wall of the screw is provided with a first step; the outer side wall of the shell is provided with a second step; one end of the elastic piece is abutted against the second step, and the other end of the elastic piece is abutted against the second step.
In the technical scheme, the elastic part is arranged at the interval between the two steps, when the tension of the steel wire rope is smaller than a set value, the elastic force of the elastic part is larger than the thrust from the flexible shaft tube, and the elastic part can stretch to provide power for pushing the screw rod and enabling the nut to rotate; because the elastic component is arranged between the screw rod and the shell and is arranged coaxially with the screw rod, the structure compactness of the device is improved, and the space occupation area of the device is reduced.
Further preferably, the housing comprises a first cylinder shell and a second cylinder shell which are sequentially arranged along the axial direction of the screw rod and are spliced; the nut is accommodated in the first cylinder shell; the first cylinder shell is clamped between the screw rod and the second cylinder shell.
In the technical scheme, the two shells are arranged, so that the processing difficulty of the shells is reduced.
The utility model also provides a glass-frame riser ware, include:
a winding cylinder assembly; two sliders for connecting the glass; two guide rails which are oppositely arranged; a wire rope; the steel wire rope forms a closed loop between the wire winding barrel assembly and the two guide rails; each guide rail is provided with one sliding block, and the sliding blocks are connected with the steel wire ropes; a flexible shaft tube is sleeved on the steel wire rope between the two guide rails, and a flexible shaft tube is sleeved on the steel wire rope between each guide rail and the wire winding barrel assembly; further comprising:
the automatic steel wire rope tension adjusting device is arranged on one of the flexible shaft tubes;
the automatic tension adjusting device for the steel wire rope comprises a screw rod, a nut, an elastic piece and a shell; one end of the screw rod is abutted to the flexible shaft pipe sleeved on the outer side of the steel wire rope, and the other end of the screw rod penetrates through the nut and the shell; the screw rod is provided with a coaxial through hole for penetrating the steel wire rope; one end of the elastic piece is abutted against the screw rod, and the other end of the elastic piece is abutted against the shell; the nut is accommodated in the inner cavity of the shell; the nut is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod; and a limiting component is arranged at the contact position of the shell and the nut so as to limit the unidirectional rotation of the nut when the screw rod moves towards one side of the hose pipe under the action of the elastic force of the elastic part.
In the technical scheme, the screw rod is limited to move only along the axial direction but not to rotate by utilizing the screw connection of the screw rod and the nut and the limiting component, and meanwhile, the nut can only rotate in a single direction but not rotate in the reverse direction, so that the screw rod can only move in a single direction along the axial direction; when the tensile force of the steel wire rope is not enough, the elastic part pushes the screw rod to move towards one end of the flexible shaft pipe due to the reduction of the thrust of the flexible shaft pipe, and meanwhile, the nut is driven to rotate in a single direction, but when the thrust of the flexible shaft pipe is larger than the elastic force of the elastic part, the screw rod cannot retract due to the single-direction movement characteristic, so that the device automatically eliminates and absorbs the free length of the steel wire rope in the system, and the effective tension of the steel wire rope in the system is ensured. More preferably, because the elastic component sets up between screw rod and shell, guaranteed this device to the automatic absorption in real time of wire rope's excess free length for the response of this device is timely and reliable.
Further preferably, a concave-convex matching structure extending along the axial direction of the screw is arranged between the outer side wall of the screw and the inner side wall of the shell, so that the screw moves towards one end of the hose pipe along the axial direction of the screw under the action of the elastic force of the elastic piece and cannot rotate circumferentially.
In the technical scheme, the linear motion of the screw rod is ensured through the concave-convex matching structure, so that the balance of the device on the absorption of the freedom degree of the steel wire rope is ensured, and the running stability of the glass lifter is ensured.
Further preferably, the limiting assembly comprises an elastic sheet and ring teeth; the ring teeth comprise more than one inner engaging ratchet teeth, and step surfaces used for being abutted to the end parts of the elastic sheets are formed on the end surfaces of one sides of the inner engaging ratchet teeth in the circumferential direction of the ring teeth so as to limit the one-way rotation of the nut.
In the technical scheme, the nut can rotate when moving towards one end of the flexible shaft pipe under the action of the elastic force of the elastic piece by utilizing the deformability of the elastic piece, but the nut cannot rotate in the opposite direction under the thrust of the flexible shaft pipe, and the extended screw cannot retract again, so that the device can automatically absorb the free length exceeding the steel wire rope, and has the advantages of compact and simple structure, easiness in realization and good effect.
Further preferably, the nut comprises a bolt connection section and a limit section; the threaded section is in threaded connection with the screw; the limiting section is provided with symmetrically arranged through grooves, the elastic sheet is arranged on the side wall of each through groove, and the elastic sheet is outwards stretched along the outer diameter tangent of the limiting section; the ring teeth are arranged on the inner wall of the inner cavity at positions corresponding to the elastic sheets.
Among this technical scheme, the shell fragment outwards opens along tangential direction, has guaranteed that the shell fragment can carry out the butt with the inner gearing ratchet tooth of ring tooth, guarantees that the nut can only unidirectional rotation, improves the reliability of this device.
The utility model provides a pair of wire rope tension automatic regulating apparatus and contain its glass-frame riser can bring following beneficial effect:
the screw rod is limited to move only along the axial direction but not to rotate by utilizing the screw connection of the screw rod and the nut and the limiting component, and meanwhile, the nut can only rotate in one direction but not rotate in the reverse direction, so that the screw rod can only move in one direction along the axial direction; when the tensile force of the steel wire rope is not enough, the elastic part pushes the screw rod to move towards one end of the flexible shaft pipe due to the reduction of the thrust of the flexible shaft pipe, and meanwhile, the nut is driven to rotate in a single direction, but when the thrust of the flexible shaft pipe is larger than the elastic force of the elastic part, the screw rod cannot retract due to the single-direction movement characteristic, so that the device automatically eliminates and absorbs the free length of the steel wire rope in the system, and the effective tension of the steel wire rope in the system is ensured. More preferably, because the elastic component sets up between screw rod and shell, guaranteed this device to the automatic absorption in real time of wire rope's excess free length for the response of this device is timely and reliable.
Drawings
The above-mentioned features, technical characteristics, advantages and modes of realisation of the automatic rope tension adjusting device and the window lifter comprising the same will be further explained in a clearly understandable manner with reference to the accompanying drawings, which illustrate preferred embodiments.
Fig. 1 is a schematic structural view of a first embodiment of an automatic tension adjusting device for a steel wire rope according to the present invention;
fig. 2 is a schematic structural view of an explosion diagram of a second embodiment of the automatic tension adjusting device for a steel wire rope according to the present invention;
fig. 3 is a schematic structural view of a cross-sectional view of a third embodiment of the automatic tension adjusting device for a steel wire rope according to the present invention;
FIG. 4 is a schematic view of the cross-sectional view A-A of FIG. 3;
FIG. 5 is a schematic view of a first embodiment of the window regulator of the present invention;
fig. 6 is a schematic structural view of a second embodiment of the window regulator of the present invention.
The reference numbers illustrate:
1. the automatic tension adjusting device for the steel wire rope comprises a steel wire rope tension automatic adjusting device, 11 a screw rod, 111 a counter bore, 112 external threads, 113 a first step, 114 a third step, 115 a fourth step, 12 an outer shell, 121 a first barrel shell, 1211 a protrusion, 1212 an annular tooth, 1213 a step surface, 1214 a second step, 1215 a slot, 1216 a first inner step, 122 a second barrel shell, 1221 a fifth step, 1222 a groove, 13 a nut, 131 an internal thread, 132 an elastic sheet, 133 a through groove, 134 a sixth step, 14 an elastic element, 2 a soft shaft tube, 3 steel wire ropes, 31 an upper steel wire rope, 32 a lower steel wire rope, 4 a wire barrel rolling assembly, 5 a sliding block and 6 guide rails.
Detailed Description
In order to more clearly illustrate embodiments of the present invention or technical solutions in the prior art, specific embodiments of the present invention will be described below with reference to the accompanying drawings. It is obvious that the drawings in the following description are only examples of the invention, and that for a person skilled in the art, other drawings and embodiments can be obtained from these drawings without inventive effort.
For the sake of simplicity, the drawings only schematically show the parts relevant to the present invention, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and understandable, components having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one". In this context, it is to be understood that, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In one embodiment, as shown in fig. 1 to 4, an automatic tension adjusting device for a steel wire rope comprises: a screw 11, a nut 13, an elastic member 14 and a housing 12; one end of the screw rod 11 is abutted against the flexible shaft pipe 2 sleeved outside the steel wire rope 3, and the other end of the screw rod 11 penetrates through the nut 13 and the shell 12; the screw 11 is provided with a coaxial through hole for the steel wire rope 3 to pass through along the axis direction of the screw; one end of the elastic piece 14 is abutted against the screw rod 11, and the other end of the elastic piece 14 is abutted against the shell 12; the nut 13 is accommodated in the inner cavity of the housing 12; the nut 13 is sleeved outside the screw rod 11, and the nut 13 is in threaded connection with the screw rod 11; the contact portion of the housing 12 and the nut 13 is provided with a limit component to limit the one-way rotation of the nut 13 when the screw 11 moves toward the hose pipe 2 side by the elastic force of the elastic member 14. It should be noted that, since the nut 13 is sleeved outside the screw 11, the screw 11 is provided with the external thread 112, and the nut 13 is provided with the internal thread 131 matched with the external thread 112.
In practical applications, the housing 12 needs to be fixedly mounted to a component at one of the two ends of the hose pipe 2, at the initial stage of use of the wire rope 3 forming the closed loop, since the wire rope 3 does not appear to exceed the free length due to use, at this time, because the thrust of the flexible shaft tube 2 is in a pre-compression state, the steel wire rope 3 exceeds the free length along with the prolonging of the service time of the steel wire rope 3, at the moment, the tension of the flexible shaft tube 2 on the steel wire rope 3 is reduced, so that the thrust of the flexible shaft tube 2 to the screw rod 11 is reduced, the elastic part 14 extends under the action of the energy storage thereof, since the housing 12 is fixed, the elongation of the elastic member 14 (theoretically equal to the excess free length of the wire rope 3) is finally converted into the movement path of the screw 11 toward the side of the hose pipe 2, and thus the excess free length of the wire rope 3 is automatically absorbed by the present apparatus; simultaneously, because nut 13 and screw rod 11 spiro union, nut 13 can rotate when screw rod 11 is done along its self axis direction motion, after this device absorbed wire rope 3 surpassing free length, because spacing subassembly's existence for nut 13 can't the antiport, and then makes the unable direction of screw rod 11 take place the displacement along self axis direction, therefore, the phenomenon that the exceeding free length of the wire rope 3 that absorbs is released once more can not appear in this device. When the rope 3 again exhibits an excess free length on the basis of the above, the elastic member 14 is again extended so that the re-exhibited excess free length is automatically absorbed by the present device. And the process is circulated. In conclusion, the device can automatically absorb the excess free length of the steel wire rope 3 in time. Therefore, the thread length of the screw 11 can be set according to the possible excess free length of the steel cable 3 applied by the device, and the movable distance of the screw 11 is not less than the excess free length of the steel cable 3, so that the setting is optimal, and the description is omitted.
In the second embodiment, as shown in fig. 1-4, on the basis of the first embodiment, the limiting assembly includes a spring plate 132 and a ring tooth 1212; the ring teeth 1212 include one or more inner-engaging ratchet teeth, and a step surface 1213 for abutting an end portion of the resilient piece 132 is formed on an end surface of the ring teeth 1212 in a circumferential direction to restrict one-way rotation of the nut 13 when the screw rod 11 moves toward the hose pipe 2 side by the resilient force of the resilient piece 14. Preferably, the nut 13 comprises a threaded section and a limiting section; the thread section is in threaded connection with the screw rod 11; the limiting section is provided with a through groove 133, the elastic sheet 132 is arranged on the side wall of the through groove 133, and the elastic sheet 132 is outwards opened along the external diameter tangent of the limiting section; the ring teeth 1212 are disposed on the inner wall of the inner cavity at positions corresponding to the resilient pieces 132. Preferably, two shell fragments 132 set up in spacing section relatively, and spacing section is equipped with two logical grooves 133 that set up relatively promptly, and in order to guarantee smooth butt in the step face 1213 of internal gearing ratchet tooth of shell fragment 132, the size of logical groove 133 along the circumferential direction of spacing section is greater than the size of shell fragment 132 along the circumferential direction of spacing section to guarantee that the tip of shell fragment 132 can butt in step face 1213 all the time. The elastic sheet 132 is opened outwards along the outer diameter tangent line of the limit, and one method is to eject the elastic sheet 132 through the screw rod 11, for example, by arranging a boss on the screw rod 11; alternatively, the resilient tab 132 may be formed to expand outwardly along a tangent of the outer diameter of the stop segment during manufacture. In practical applications, the size of the resilient tab 132 along the circumferential direction of the ring teeth 1212 is larger than the size of one inner-engaging ratchet tooth along the circumferential direction of the ring teeth 1212. Preferably, an inner ratchet tooth is provided with a stepped surface 1213, i.e., the inner ratchet tooth of the ring teeth 1212 is a triangular tooth. It should be noted that the ring teeth 1212 may be disposed around the inner cavity of the housing 12 to form a circle, or less than a circle. And the sizes and the number of the elastic sheets 132 and the inner-meshing ratchet teeth can be flexibly set according to actual needs. Of course, the resilient tabs 132 may be disposed on the housing 12 and the ring teeth 1212 disposed on the nut 13, and then the resilient tabs 132 preferably open inwardly along a tangent of the inner diameter of the internal cavity of the housing 12.
In the third embodiment, as shown in fig. 1 to 4, on the basis of the first or second embodiment, a concave-convex matching structure extending along the axial direction of the screw 11 is provided between the outer side wall of the screw 11 and the inner side wall of the housing 12, so that the screw 11 moves towards one end of the hose pipe 2 along the axial direction thereof under the elastic force of the elastic member 14 and cannot perform circular rotation movement. Preferably, the housing 12 is provided with an axial protrusion, and the screw 11 is provided with an axial groove at a position corresponding to the axial protrusion. Of course, the axial projection could also be provided on the screw 11, while the axial recess is provided on the housing 12. Preferably, the axial projection is clearance fitted with the axial groove. Preferably, the outer side wall of the screw 11 is provided with a first step 113; the outer side wall of the housing 12 is provided with a second step 1214; one end of the elastic element 14 abuts against the second step 1214, and the other end of the elastic element 14 abuts against the second step 1214. Preferably, the housing 12 includes a first cylindrical shell 121 and a second cylindrical shell 122 which are sequentially arranged along the axial direction of the screw 11 and are inserted; the nut 13 is accommodated in the first casing 121; the first cylindrical case 121 is interposed between the screw 11 and the second cylindrical case 122. Preferably, a slot 1215 is formed on the outer side wall of the first casing near one side of the second casing, so that the end part of the second casing 122 near the first casing can be inserted into the slot 1215. Preferably, the outer side wall of the second cartridge 122 is provided with a fifth step 1221, so that the end face of the first cartridge 121 is limited by the fifth step 1221, and excessive insertion of the first cartridge 121 and the second cartridge 122 is avoided. Preferably, the contact part of the first cylindrical shell 121 and the second cylindrical shell 122 is provided with a concave-convex matching structure, preferably, the first cylindrical shell 121 is provided with a protrusion 1211, and the second cylindrical shell 122 is provided with a groove 1222 corresponding to the protrusion 1211. Of course, the protrusion 1211 can be disposed on the second cylindrical housing 122, and the groove 1222 can be disposed on the first cylindrical housing 121.
Preferably, the end surface of the screw 11 corresponding to the first casing 121 is provided with a third step 114, so that the end surface of the slot 1215 of the first casing 121 can abut against the fifth step 1221, and the other end of the first casing 121 abuts against the third step 114. Preferably, the inner side wall of the first cylinder case 121 is provided with a second inner step provided corresponding to one end of the nut 13, and the outer side wall of the screw 11 is provided with a fourth step 115, so that the nut 13 is accommodated between the second inner step and the fourth step 115. Preferably, the outer diameter of the threaded section of the nut 13 is greater than the outer diameter of the limiting section, so that a sixth step 134 is formed between the threaded section and the limiting section, and correspondingly, the first casing 121 is provided with a first inner step 1216 corresponding to the sixth step 134, so that the sixth step 134 and the first inner step 1216 are abutted against each other. Preferably, in order to prevent the nut 13 from falling down during assembly, the end of the first housing on the side close to the nut 13 protrudes inward in the radial direction to achieve the limit of the nut 13. The first cylinder shell 121, the second cylinder shell 122, the screw 11 and the spring are directly and forcibly assembled by arranging the steps, and the first cylinder shell, the second cylinder shell and the spring are connected without any connecting piece, so that the assembling efficiency is improved. Preferably, to facilitate rotation of the nut 13, the internal cavity is preferably a clearance fit with the nut 13. Preferably, in order to prevent the elastic element 14 from being unable to abut against the screw 11 and the housing 12, the elastic element 14 may be fixed to the screw 11 and the housing 12 through a connecting element, the end of the elastic element 14 may also be fixed by extending into a counter bore provided in the screw 11 and the housing 12, or a cover is sleeved outside the elastic element 14 to limit the elastic element 14 to always abut against between the housing 12 and the screw 11. Preferably, in order to ensure the reliability of the connection between the hose pipe 2 and the screw 11, the screw 11 is provided with a counterbore 111 corresponding to the position of the hose pipe 2, so that one end of the hose pipe 2 extends into the counterbore 111 to realize the reliable abutment with the screw 11.
In a fourth embodiment, as shown in fig. 1-6, a window regulator, comprising: a wire winding drum component 4; two sliders 5 for connecting the glass; two oppositely arranged guide rails 6; a wire rope 3; the steel wire rope 3 forms a closed loop between the wire winding drum component 4 and the two guide rails 6; each guide rail 6 is provided with a slide block 5, and the slide block 5 is connected with the steel wire rope 3; the steel wire rope 3 between the two guide rails 6 is sleeved with the flexible shaft tube 2, and the steel wire rope 3 between each guide rail 6 and the wire winding drum component 4 is sleeved with the flexible shaft tube 2; further comprising: the automatic tension adjusting device 1 for the steel wire rope 3 is characterized in that more than one flexible shaft tube 2 is correspondingly provided with the automatic tension adjusting device 1 for the steel wire rope 3; the automatic tension adjusting device 1 for the steel wire rope 3 comprises a screw rod 11, a nut 13, an elastic piece 14 and a shell 12; one end of the screw rod 11 is abutted against the flexible shaft pipe 2 sleeved outside the steel wire rope 3, and the other end of the screw rod 11 penetrates through the nut 13 and the shell 12; the screw 11 is provided with a coaxial through hole for the steel wire rope 3 to pass through along the axis direction of the screw; one end of the elastic piece 14 is abutted against the screw rod 11, and the other end of the elastic piece 14 is abutted against the shell 12; the nut 13 is accommodated in the inner cavity of the housing 12; the nut 13 is sleeved outside the screw rod 11, and the nut 13 is in threaded connection with the screw rod 11; the contact portion of the housing 12 and the nut 13 is provided with a limit component to limit the one-way rotation of the nut 13 when the screw 11 moves toward the hose pipe 2 side by the elastic force of the elastic member 14. It should be noted that, since the nut 13 is sleeved outside the screw 11, the screw 11 is provided with the external thread 112, and the nut 13 is provided with the internal thread 131 matched with the external thread 112.
In practical application, in order to realize the lifting of the glass, the steel wire rope 3 positioned on one of the guide rails 6 is called an upper steel wire rope 31, and the steel wire rope 3 positioned on the other guide rail 6 is called a lower steel wire rope 32, that is, one of the sliders 5 is connected with the upper steel wire rope 31, and the other slider 5 is connected with the lower steel wire rope 32. According to actual needs, the automatic tension adjusting device 1 for the steel wire rope 3 is preferably disposed near the lower steel wire rope 32, that is, the housing 12 of the automatic tension adjusting device 1 for the steel wire rope 3 is fixedly connected with the wire winding drum assembly 4 or fixedly connected with the guide rail 6 disposed corresponding to the lower steel wire rope 32. Because the glass lifter is provided with the three flexible shaft tubes 2 (the steel wire ropes 3 between the two guide rails 6 are sleeved with the flexible shaft tubes 2, and the steel wire ropes 3 between each guide rail 6 and the wire winding barrel assembly 4 are sleeved with the flexible shaft tubes 2), more than one automatic steel wire rope tension adjusting device 1 can be arranged for each flexible shaft tube 2 in actual needs, and one or two automatic steel wire rope tension adjusting devices 1 can be arranged on one flexible shaft because the flexible shaft tubes 2 have two ends. Specifically, the steel wire rope tension automatic adjusting device 1 is installed on the flexible shaft tube 2, and the steel wire rope tension automatic adjusting devices 1 installed on the flexible shaft tube 2 can be set according to actual needs. In practical applications, the elastic member 14 is preferably a spring, but may be other members having elastic properties.
In the fifth embodiment, as shown in fig. 1 to 6, on the basis of the fourth embodiment, the limiting assembly includes the elastic sheet 132 and the ring teeth 1212; the ring teeth 1212 include one or more inner-engaging ratchet teeth, and a step surface 1213 for abutting an end portion of the resilient piece 132 is formed on an end surface of the ring teeth 1212 in a circumferential direction to restrict one-way rotation of the nut 13 when the screw rod 11 moves toward the hose pipe 2 side by the resilient force of the resilient piece 14. Preferably, the nut 13 comprises a threaded section and a limiting section; the thread section is in threaded connection with the screw rod 11; the limiting section is provided with a through groove 133, the elastic sheet 132 is arranged on the side wall of the through groove 133, and the elastic sheet 132 is outwards opened along the external diameter tangent of the limiting section; the ring teeth 1212 are disposed on the inner wall of the inner cavity at positions corresponding to the resilient pieces 132. Preferably, two shell fragments 132 set up in spacing section relatively, and spacing section is equipped with two logical grooves 133 that set up relatively promptly, and in order to guarantee smooth butt in the step face 1213 of internal gearing ratchet tooth of shell fragment 132, the size of logical groove 133 along the circumferential direction of spacing section is greater than the size of shell fragment 132 along the circumferential direction of spacing section to guarantee that the tip of shell fragment 132 can butt in step face 1213 all the time. The elastic sheet 132 is opened outwards along the outer diameter tangent line of the limit, and one method is to eject the elastic sheet 132 through the screw rod 11, for example, by arranging a boss on the screw rod 11; alternatively, the resilient tab 132 may be formed to expand outwardly along a tangent of the outer diameter of the stop segment during manufacture. In practical applications, the size of the resilient tab 132 along the circumferential direction of the ring teeth 1212 is larger than the size of one inner-engaging ratchet tooth along the circumferential direction of the ring teeth 1212. Preferably, an inner ratchet tooth is provided with a stepped surface 1213, i.e., the inner ratchet tooth of the ring teeth 1212 is a triangular tooth. It should be noted that the ring teeth 1212 may be disposed around the inner cavity of the housing 12 to form a circle, or less than a circle. And the sizes and the number of the elastic sheets 132 and the inner-meshing ratchet teeth can be flexibly set according to actual needs. Of course, the resilient tabs 132 may be disposed on the housing 12 and the ring teeth 1212 disposed on the nut 13, and then the resilient tabs 132 preferably open inwardly along a tangent of the inner diameter of the internal cavity of the housing 12.
In the sixth embodiment, as shown in fig. 1 to 6, on the basis of the fourth or fifth embodiment, a concave-convex matching structure extending along the axial direction of the screw 11 is provided between the outer side wall of the screw 11 and the inner side wall of the housing 12, so that the screw 11 moves towards one end of the hose pipe 2 along the axial direction thereof under the elastic force of the elastic member 14 and cannot perform circular rotation movement. Preferably, the housing 12 is provided with an axial protrusion, and the screw 11 is provided with an axial groove at a position corresponding to the axial protrusion. Of course, the axial projection could also be provided on the screw 11, while the axial recess is provided on the housing 12. Preferably, the axial projection is clearance fitted with the axial groove. Preferably, the outer side wall of the screw 11 is provided with a first step 113; the outer side wall of the housing 12 is provided with a second step 1214; one end of the elastic element 14 abuts against the second step 1214, and the other end of the elastic element 14 abuts against the second step 1214. Preferably, the housing 12 includes a first cylindrical shell 121 and a second cylindrical shell 122 which are sequentially arranged along the axial direction of the screw 11 and are inserted; the nut 13 is accommodated in the first casing 121; the first cylindrical case 121 is interposed between the screw 11 and the second cylindrical case 122. Preferably, a slot 1215 is formed on the outer side wall of the first casing near one side of the second casing, so that the end part of the second casing 122 near the first casing can be inserted into the slot 1215. Preferably, the outer side wall of the second cartridge 122 is provided with a fifth step 1221, so that the end face of the first cartridge 121 is limited by the fifth step 1221, and excessive insertion of the first cartridge 121 and the second cartridge 122 is avoided. Preferably, the contact part of the first cylindrical shell 121 and the second cylindrical shell 122 is provided with a concave-convex matching structure, preferably, the first cylindrical shell 121 is provided with a protrusion 1211, and the second cylindrical shell 122 is provided with a groove 1222 corresponding to the protrusion 1211. Of course, the protrusion 1211 can be disposed on the second cylindrical housing 122, and the groove 1222 can be disposed on the first cylindrical housing 121.
Preferably, the end surface of the screw 11 corresponding to the first casing 121 is provided with a third step 114, so that the end surface of the slot 1215 of the first casing 121 can abut against the fifth step 1221, and the other end of the first casing 121 abuts against the third step 114. Preferably, the inner side wall of the first cylinder case 121 is provided with a second inner step provided corresponding to one end of the nut 13, and the outer side wall of the screw 11 is provided with a fourth step 115, so that the nut 13 is accommodated between the second inner step and the fourth step 115. Preferably, the outer diameter of the threaded section of the nut 13 is greater than the outer diameter of the limiting section, so that a sixth step 134 is formed between the threaded section and the limiting section, and correspondingly, the first casing 121 is provided with a first inner step 1216 corresponding to the sixth step 134, so that the sixth step 134 and the first inner step 1216 are abutted against each other. Preferably, in order to prevent the nut 13 from falling down during assembly, the end of the first housing on the side close to the nut 13 protrudes inward in the radial direction to achieve the limit of the nut 13. The first cylinder shell 121, the second cylinder shell 122, the screw 11 and the spring are directly and forcibly assembled by arranging the steps, and the first cylinder shell, the second cylinder shell and the spring are connected without any connecting piece, so that the assembling efficiency is improved. Preferably, to facilitate rotation of the nut 13, the internal cavity is preferably a clearance fit with the nut 13. Preferably, in order to prevent the elastic element 14 from being unable to abut against the screw 11 and the housing 12, the elastic element 14 may be fixed to the screw 11 and the housing 12 through a connecting element, the end of the elastic element 14 may also be fixed by extending into a counter bore provided in the screw 11 and the housing 12, or a cover is sleeved outside the elastic element 14 to limit the elastic element 14 to always abut against between the housing 12 and the screw 11. Preferably, in order to ensure the reliability of the connection between the hose pipe 2 and the screw 11, the screw 11 is provided with a counterbore 111 corresponding to the position of the hose pipe 2, so that one end of the hose pipe 2 extends into the counterbore 111 to realize the reliable abutment with the screw 11.
It should be noted that the above embodiments can be freely combined as necessary. The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (10)
1. The utility model provides a wire rope tension automatic regulating apparatus which characterized in that includes:
the screw rod, the nut, the elastic piece and the shell;
one end of the screw rod is abutted to the flexible shaft pipe sleeved on the outer side of the steel wire rope, and the other end of the screw rod penetrates through the nut and the shell;
the screw rod is provided with a coaxial through hole for penetrating the steel wire rope along the axis direction of the screw rod;
one end of the elastic piece is abutted against the screw rod, and the other end of the elastic piece is abutted against the shell;
the nut is accommodated in the inner cavity of the shell;
the nut is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod;
and a limiting component is arranged at the contact position of the shell and the nut so as to limit the unidirectional rotation of the nut when the screw rod moves towards one side of the hose pipe under the action of the elastic force of the elastic part.
2. The automatic adjusting device for the tension of a steel wire rope according to claim 1, characterized in that:
the screw rod lateral wall with be equipped with between the shell inside wall along the unsmooth cooperation structure of the axis direction extension of screw rod makes the screw rod is in along its own axis direction under the spring action of elastic component towards hose section of thick bamboo one end motion just can't make circular rotation motion.
3. The automatic adjusting device for the tension of a steel wire rope according to claim 1, characterized in that:
the limiting assembly comprises an elastic sheet and ring teeth; the ring teeth comprise more than one inner engaging ratchet teeth, and step surfaces used for being abutted to the end parts of the elastic sheets are formed on the end surfaces of one sides of the inner engaging ratchet teeth in the circumferential direction of the ring teeth so as to limit the one-way rotation of the nut.
4. The automatic adjusting device for the tension of a steel wire rope according to claim 3, wherein:
the nut comprises a bolt connection section and a limiting section;
the threaded section is in threaded connection with the screw;
the limiting section is provided with symmetrically arranged through grooves, the elastic sheet is arranged on the side wall of each through groove, and the elastic sheet is outwards stretched along the outer diameter tangent of the limiting section;
the ring teeth are arranged on the inner wall of the inner cavity at positions corresponding to the elastic sheets.
5. The automatic adjusting device for the tension of a steel wire rope according to claim 1, characterized in that:
the outer side wall of the screw is provided with a first step;
the outer side wall of the shell is provided with a second step;
one end of the elastic piece is abutted against the second step, and the other end of the elastic piece is abutted against the second step.
6. The automatic adjusting device for the tension of a steel wire rope according to any one of claims 1 to 5, characterized in that:
the shell comprises a first cylinder shell and a second cylinder shell which are sequentially arranged along the axial direction of the screw rod and are spliced;
the nut is accommodated in the first cylinder shell;
the first cylinder shell is clamped between the screw rod and the second cylinder shell.
7. A window regulator comprising a winding spool assembly; two sliders for connecting the glass; two guide rails which are oppositely arranged; a wire rope; the steel wire rope forms a closed loop between the wire winding barrel assembly and the two guide rails; each guide rail is provided with one sliding block, and the sliding blocks are connected with the steel wire ropes; a flexible shaft tube is sleeved on the steel wire rope between the two guide rails, and a flexible shaft tube is sleeved on the steel wire rope between each guide rail and the wire winding barrel assembly; it is characterized by also comprising:
the automatic steel wire rope tension adjusting device is correspondingly arranged on more than one flexible shaft pipe;
the automatic tension adjusting device for the steel wire rope comprises a screw rod, a nut, an elastic piece and a shell; one end of the screw rod is abutted to the flexible shaft pipe sleeved on the outer side of the steel wire rope, and the other end of the screw rod penetrates through the nut and the shell; the screw rod is provided with a coaxial through hole for penetrating the steel wire rope; one end of the elastic piece is abutted against the screw rod, and the other end of the elastic piece is abutted against the shell; the nut is accommodated in the inner cavity of the shell; the nut is sleeved on the outer side of the screw rod and is in threaded connection with the screw rod; and a limiting component is arranged at the contact position of the shell and the nut so as to limit the unidirectional rotation of the nut when the screw rod moves towards one side of the hose pipe under the action of the elastic force of the elastic part.
8. The window regulator of claim 7, wherein:
the screw rod lateral wall with be equipped with between the shell inside wall along the unsmooth cooperation structure of the axis direction extension of screw rod makes the screw rod is in along its own axis direction under the spring action of elastic component towards hose section of thick bamboo one end motion just can't make circular rotation motion.
9. A window lifter according to claim 7 or 8, characterized in that:
the limiting assembly comprises an elastic sheet and ring teeth; the ring teeth comprise more than one inner engaging ratchet teeth, and step surfaces used for being abutted to the end parts of the elastic sheets are formed on the end surfaces of one sides of the inner engaging ratchet teeth in the circumferential direction of the ring teeth so as to limit the one-way rotation of the nut.
10. The window regulator of claim 9, wherein:
the nut comprises a bolt connection section and a limiting section;
the threaded section is in threaded connection with the screw;
the limiting section is provided with symmetrically arranged through grooves, the elastic sheet is arranged on the side wall of each through groove, and the elastic sheet is outwards stretched along the outer diameter tangent of the limiting section;
the ring teeth are arranged on the inner wall of the inner cavity at positions corresponding to the elastic sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463940.2U CN209874839U (en) | 2019-04-08 | 2019-04-08 | Steel wire rope tension automatic regulating device and glass lifter comprising same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920463940.2U CN209874839U (en) | 2019-04-08 | 2019-04-08 | Steel wire rope tension automatic regulating device and glass lifter comprising same |
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| Publication Number | Publication Date |
|---|---|
| CN209874839U true CN209874839U (en) | 2019-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920463940.2U Active CN209874839U (en) | 2019-04-08 | 2019-04-08 | Steel wire rope tension automatic regulating device and glass lifter comprising same |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882016A (en) * | 2019-04-08 | 2019-06-14 | 上海实业交通电器有限公司 | A kind of steel wire rope tension self-checking device and the glass-frame riser comprising it |
-
2019
- 2019-04-08 CN CN201920463940.2U patent/CN209874839U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882016A (en) * | 2019-04-08 | 2019-06-14 | 上海实业交通电器有限公司 | A kind of steel wire rope tension self-checking device and the glass-frame riser comprising it |
| CN109882016B (en) * | 2019-04-08 | 2024-04-05 | 上海实业交通电器有限公司 | Automatic tension adjusting device for steel wire rope and glass lifter comprising same |
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