CN111425102B - Steel wire rope tension adjusting device and glass lifter - Google Patents
Steel wire rope tension adjusting device and glass lifter Download PDFInfo
- Publication number
- CN111425102B CN111425102B CN201910022386.9A CN201910022386A CN111425102B CN 111425102 B CN111425102 B CN 111425102B CN 201910022386 A CN201910022386 A CN 201910022386A CN 111425102 B CN111425102 B CN 111425102B
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- sleeve
- wire rope
- steel wire
- shell
- adjusting device
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 81
- 239000010959 steel Substances 0.000 title claims abstract description 81
- 239000011521 glass Substances 0.000 title claims description 37
- 230000007246 mechanism Effects 0.000 claims description 37
- 230000009471 action Effects 0.000 claims description 17
- 238000004804 winding Methods 0.000 claims description 11
- 230000000694 effects Effects 0.000 abstract 1
- 230000004308 accommodation Effects 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/689—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings specially adapted for vehicle windows
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05F—DEVICES FOR MOVING WINGS INTO OPEN OR CLOSED POSITION; CHECKS FOR WINGS; WING FITTINGS NOT OTHERWISE PROVIDED FOR, CONCERNED WITH THE FUNCTIONING OF THE WING
- E05F15/00—Power-operated mechanisms for wings
- E05F15/60—Power-operated mechanisms for wings using electrical actuators
- E05F15/603—Power-operated mechanisms for wings using electrical actuators using rotary electromotors
- E05F15/665—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings
- E05F15/668—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings
- E05F15/681—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts
- E05F15/686—Power-operated mechanisms for wings using electrical actuators using rotary electromotors for vertically-sliding wings for overhead wings operated by flexible elongated pulling elements, e.g. belts by cables or ropes
-
- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES E05D AND E05F, RELATING TO CONSTRUCTION ELEMENTS, ELECTRIC CONTROL, POWER SUPPLY, POWER SIGNAL OR TRANSMISSION, USER INTERFACES, MOUNTING OR COUPLING, DETAILS, ACCESSORIES, AUXILIARY OPERATIONS NOT OTHERWISE PROVIDED FOR, APPLICATION THEREOF
- E05Y2900/00—Application of doors, windows, wings or fittings thereof
- E05Y2900/50—Application of doors, windows, wings or fittings thereof for vehicles
- E05Y2900/53—Type of wing
- E05Y2900/55—Windows
Landscapes
- Flexible Shafts (AREA)
- Transmission Devices (AREA)
Abstract
The invention belongs to the field of automobile accessories, and discloses a steel wire rope tension adjusting device which comprises a shell, wherein a containing cavity is arranged in the shell, one end of the containing cavity is opened, and a through hole communicated with the containing cavity is formed in the side wall of the other end of the containing cavity; one end of the sleeve extends into the accommodating cavity and is in sliding fit with the accommodating cavity, and the other end of the sleeve is positioned outside the shell; the elastic piece is sleeved on the outer wall of one end of the sleeve extending out of the shell; one end of the sleeve extending out of the shell is propped against the flexible shaft pressure pipe, so that the elastic piece is in a compressed state; the fixed establishment sets up in holding the intracavity, and when the sleeve pipe moved towards the one side of keeping away from the through-hole under the effect of elastic component, fixed establishment fixed sleeve pipe prevented that the sleeve pipe from returning to initial position. According to the tension adjusting device disclosed by the invention, when the free length of the steel wire rope is increased to a certain size, the sleeve is pushed to slide outwards by the elastic force of the elastic piece, so that the free length part of the steel wire rope is eliminated and absorbed by the adjusting device, and the tension of a steel wire rope system is ensured.
Description
Technical Field
The invention belongs to the technical field of automobile accessories, and particularly relates to a steel wire rope tension adjusting device and a glass lifter.
Background
In the existing rope wheel type glass lifter mechanism, a steel wire rope is divided into two sections to work and has two stress states, when glass needs to ascend, a motor rotates to drive a wire winding drum to rotate so as to tighten the last section of steel wire rope, the glass ascends, the last section of steel wire rope is in a tensioning state, and meanwhile, the lower section of steel wire rope is in a loosening state and is recovered into the wire winding drum; conversely, when the glass descends, the next section of steel wire rope is tensioned and stressed, the last section of steel wire rope is in a loose state, and the steel wire rope forms a closed loop in the system.
In elevator mechanisms, the wire rope needs to be kept small in free length to ensure that the wire rope has a reasonable degree of tension, to achieve a reasonable efficiency, and to ensure that the elevator mechanism is operating properly. However, because the steel wire rope is in a stressed state during operation, each relatively moving part in the lifter mechanism can be worn after being stressed, the free length of the steel wire rope can be gradually increased, or the manufacturing error of each part of the lifter can also cause the overlarge free length of the steel wire rope. When the free length of the steel wire rope is too large, the motor drives the wire winding drum to rotate, the wire winding drum is required to tighten the free length part, the wire winding drum belongs to idle stroke, uneven resistance generated by the excessive idle stroke causes abnormal running noise, the running parallelism of two glass bearing sliding blocks in a lifter mechanism of a double-guide rail structure changes, glass is inclined, and the phenomenon of difficult glass rising occurs when the glass is serious.
In addition, in the frameless car door, the upper half part of the car door is not provided with a circle of guide groove like the traditional car door, when the glass runs upwards, the glass is not restrained and supported by the guide groove of the traditional car door, the glass is completely restrained by the sliding block, the glass is ensured to be attached to the rubber strip of the side wall of the car all the time in running, and the glass smoothly enters the top groove on the side wall of the car after running to the top. Meanwhile, when the glass stays at any position in the travel, the sliding block needs to firmly clamp the glass so as to ensure that the glass keeps stable in the process of driving. 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, the glass cannot be properly attached to the rubber strip on the side wall of the vehicle, the glass can shake, and the glass cannot achieve effective sealing to cause faults such as wind noise or water leakage.
Disclosure of Invention
The invention aims to provide a steel wire rope tension adjusting device and a glass lifter, which are used for eliminating redundant length of a steel wire rope when free length of the steel wire rope of the lifter is prolonged and tension is reduced so as to maintain the tension of the steel wire rope and further ensure normal and stable operation of the lifter.
The technical scheme provided by the invention is as follows:
a tension adjusting device for a steel wire rope comprises a shell, a sleeve, an elastic piece, a flexible shaft pressure pipe and a fixing mechanism;
A containing cavity is arranged in the shell, one end of the containing cavity is opened, and a through hole communicated with the containing cavity is formed in the side wall of the other end of the containing cavity;
one end of the sleeve extends into the accommodating cavity and is in sliding fit with the accommodating cavity, and the other end of the sleeve is positioned outside the shell;
The elastic piece is sleeved on the outer wall of one end of the sleeve extending out of the shell;
One end of the sleeve extending out of the shell is propped against the flexible shaft pressure pipe, so that the elastic piece is in a compressed state;
The fixing mechanism is arranged in the accommodating cavity, and when the sleeve moves towards one side far away from the through hole under the action of the elastic piece, the fixing mechanism fixes the sleeve to prevent the sleeve from returning to the initial position.
Further, the fixing mechanism comprises a rack, a pawl and a spring plate;
the rack is arranged on the side wall of one end of the sleeve extending into the shell;
the pawl and the elastic sheet are respectively arranged in the accommodating cavity, one surface of the pawl provided with the ratchet is meshed with the rack, and the other surface of the pawl is abutted to the elastic sheet.
Further, the fixing mechanism further comprises a spring plate seat;
The elastic sheet seat is arranged in the accommodating cavity;
the elastic sheet is arranged on the elastic sheet seat;
One end of the pawl is rotationally connected with the elastic sheet seat, one surface of the other end of the pawl provided with a ratchet is meshed with the rack, and the other surface of the pawl is abutted to the elastic sheet.
Further, one end of the pawl, which is connected with the elastic sheet seat, is in a sphere shape, a circular groove is formed in the elastic sheet seat, and one end of the pawl, which is in the sphere shape, is arranged in the circular groove, so that the pawl is rotatably arranged on the elastic sheet seat.
Further, the elastic sheet is a U-shaped metal elastic sheet;
the spring plate seat is provided with a spring plate mounting groove;
one end of the elastic piece is arranged in the elastic piece mounting groove, and the other end of the elastic piece is in butt joint with the pawl.
Further, the fixing mechanism comprises a plurality of telescopic members;
a plurality of grooves are formed in the inner wall of the accommodating cavity along the moving direction of the sleeve;
each groove is internally provided with a telescopic piece, and the telescopic piece is telescopically arranged in the groove along the direction perpendicular to the moving direction of the sleeve;
when the sleeve is at the initial position, the free end of the telescopic piece stretches into the groove under the pressure action of the sleeve, and when the sleeve moves towards the side far away from the through hole, the free end of at least one telescopic piece stretches out of the groove to fix the sleeve so as to prevent the sleeve from returning to the initial position.
Further, a stepped hole is formed in the sleeve;
One end of the flexible shaft pressure pipe extends into the sleeve and is abutted with the stepped hole, so that the elastic piece is in a compression state.
The invention also provides a glass lifter, which comprises a wire winding drum, a sliding block, a guide rail, an upper section steel wire rope, a lower section steel wire rope and a steel wire rope tension adjusting device, wherein the steel wire rope tension adjusting device is arranged in the lower section steel wire rope;
The steel wire rope tension adjusting device comprises a shell, a sleeve, an elastic piece, a flexible shaft pressure pipe and a fixing mechanism;
the inside of the shell is provided with a containing cavity, and one end of the shell is provided with an opening;
one end of the sleeve extends into the accommodating cavity and is in sliding fit with the accommodating cavity, and the other end of the sleeve is positioned at one side far away from the through hole;
The elastic piece is sleeved on the outer wall of one end of the sleeve extending out of the shell;
One end of the sleeve extending out of the shell is propped against the flexible shaft pressure pipe, so that the elastic piece is in a compressed state;
the fixing mechanism is arranged in the accommodating cavity, and is used for preventing the sleeve from returning to the initial position when the sleeve moves towards one side far away from the through hole under the action of the elastic piece.
Further, the fixing mechanism comprises a rack, a pawl and a spring plate,
The rack is arranged on the side wall of one end of the sleeve extending into the shell;
the pawl and the elastic sheet are respectively arranged in the accommodating cavity, one surface of the pawl provided with the ratchet is meshed with the rack, and the other surface of the pawl is abutted to the elastic sheet.
Further, the fixing mechanism comprises a plurality of telescopic members;
a plurality of grooves are formed in the inner wall of the accommodating cavity along the moving direction of the sleeve;
each groove is internally provided with a telescopic piece, and the telescopic piece is telescopically arranged in the groove along the direction perpendicular to the moving direction of the sleeve;
when the sleeve is at the initial position, the free end of the telescopic piece stretches into the groove under the pressure action of the sleeve, and when the sleeve moves towards the side far away from the through hole, the free end of at least one telescopic piece stretches out of the groove to fix the sleeve so as to prevent the sleeve from returning to the initial position.
The steel wire rope tension adjusting device and the glass lifter provided by the invention have at least one of the following beneficial effects:
1. In the use process of the steel wire rope tension adjusting device, the steel wire rope passes through the through hole on the shell, the sleeve and the flexible shaft pressure pipe, in an initial state, the steel wire rope has no free length, the flexible shaft pressure pipe props against the sleeve to enable the elastic piece to be in a compressed state, when the free length of the steel wire rope is increased to a certain size, the elastic force of the elastic piece pushes the sleeve to slide outwards, the sleeve is fixed by the fixing mechanism to prevent the sleeve from returning to the initial position, and the free length part of the steel wire rope is eliminated and absorbed by the adjusting device so as to ensure the tension of a steel wire rope system and maintain the running stability of the glass lifter.
2. In a preferred embodiment of the invention, the fixing mechanism comprises a rack, a pawl and a spring plate, the rack is driven to move when the sleeve moves outwards, the pawl is pressed to rotate downwards against the elastic force of the spring plate, so that the pawl is out of engagement with the original tooth form of the rack and enters the engagement of the next tooth form, and when the steel wire rope is in a stressed and tensioned state, the pawl cannot be engaged with the original tooth form any more due to the unidirectional action of the rack and the pawl, so that the tension of the steel wire rope system is maintained; the matching of the rack, the pawl and the elastic sheet is simple in structure, easy to realize and low in cost.
Drawings
The above-mentioned characteristics, technical features, advantages and implementation modes of a wire rope tension adjusting device and a glass lifter will be further described in a clear and understandable manner with reference to the accompanying drawings.
FIG. 1 is a cross-sectional view of a wire rope tension adjusting device of the present invention after connection to a wire rope;
FIG. 2 is a schematic view of a wire rope tension adjusting device according to the present invention;
FIG. 3 is an exploded view of a wire rope tension adjusting device of the present invention;
FIG. 4 is a cross-sectional view of a wire rope tension adjusting device of the present invention without a wire rope attached thereto;
FIG. 5 is a schematic view showing a structure in which a wire rope tension adjusting device of a glass lifter according to the present invention is fixed to a guide rail;
Fig. 6 is a schematic view showing a structure in which a wire rope tension adjusting device of a glass lifter according to the present invention is fixed to a lower wire outlet end of a housing of a wire reel.
Description of the reference numerals
1. A housing; 11. a receiving chamber; 12. a through hole; 2. a spring plate seat; 3. a spring plate; 4. a pawl; 5. a sleeve; 51. a groove; 6. a rack; 7. an elastic member; 8. flexible shaft pressure tube; 9. a wire rope; 91. an upper section of steel wire rope; 92. a lower section of steel wire rope; 10. a guide rail; 13. a slide block; 14. a wire winding drum; 15. and a wire rope tension adjusting device.
Detailed Description
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following description will explain the specific embodiments of the present invention with reference to the accompanying drawings. It is evident that the drawings in the following description are only examples of the invention, from which other drawings and other embodiments can be obtained by a person skilled in the art without inventive effort.
For the sake of simplicity of the drawing, the parts relevant to the present invention are shown only schematically in the figures, which do not represent the actual structure thereof as a product. Additionally, in order to simplify the drawing for ease of understanding, components having the same structure or function in some of the drawings are shown schematically with only one of them, or only one of them is labeled. Herein, "a" means not only "only this one" but also "more than one" case.
In a first embodiment, as shown in fig. 1-4, a wire rope tension adjusting device comprises a shell 1, a sleeve 5, an elastic piece 7, a flexible shaft pressure pipe 8 and a fixing mechanism; the shell 1 is internally provided with a containing cavity 11, one end of the containing cavity 11 is open, and the side wall of the other end of the containing cavity 11 is provided with a through hole 12 communicated with the containing cavity 11; one end of the sleeve 5 extends into the accommodating cavity 11 and is in sliding fit with the accommodating cavity 11, and the other end of the sleeve 5 is positioned outside the shell 1; the elastic piece 7 is sleeved on the outer wall of one end of the sleeve 5 extending out of the shell 1; one end of the sleeve 5 extending out of the shell 1 is propped against the flexible shaft pressure pipe 8, so that the elastic piece 7 is in a compressed state; the fixing mechanism is provided in the accommodation chamber 11, and when the sleeve 5 moves toward a side away from the through hole 12 by the elastic member 7, the fixing mechanism fixes the sleeve 5 to prevent the sleeve 5 from returning to the original position.
In the actual use process, the steel wire rope 9 passes through the through hole 12 on the shell 1, the sleeve 5 and the flexible shaft pressure pipe 8 are coaxially arranged, the flexible shaft pressure pipe 8 is a flexible shaft hollow pipe made of a steel spiral steel belt, the shape of the flexible shaft pressure pipe 8 can be bent and deformed, but the length of the flexible shaft pressure pipe 8 cannot be changed, in an initial state, the steel wire rope 9 has no free length, the steel wire rope 9 in the steel wire rope tension adjusting device is in a tensioning state, and the sleeve 5 cannot move; because the elastic element 7 always has an outward pushing force to the sleeve 5, when the free length of the steel wire rope 9 is increased to a certain size, the steel wire rope 9 in the steel wire rope tension adjusting device has a certain redundancy, and at the moment, the sleeve 5 can move, so that the sleeve 5 slides outwards under the pushing of the elastic force of the elastic element 7, and the sleeve 5 is fixed by the fixing mechanism to prevent the sleeve 5 from returning to the initial position, and the free length part of the steel wire rope 9 is eliminated and absorbed by the adjusting device, so that the tension of the steel wire rope 9 is ensured.
In the second embodiment, as shown in fig. 1 to 4, on the basis of the first embodiment, the fixing mechanism comprises a rack 6, a pawl 4 and a spring plate 3; the rack 6 is arranged on the side wall of one end of the sleeve 5 extending into the shell 1; the pawl 4 and the elastic sheet 3 are respectively arranged in the accommodating cavity 11, one surface of the pawl 4 provided with a ratchet is meshed with the rack 6, and the other surface of the pawl 4 is abutted with the elastic sheet 3. Assuming that the pitch of the rack 6 is set to 2mm, when the free length of the wire rope 9 is less than one pitch, the meshing gear position of the pawl 4 and the rack 6 is unchanged, when the free length of the wire rope 9 is increased to a certain size, the sleeve 5 drives the rack 6 on the sleeve 5 to move when being pushed to slide outwards by the elastic force of the elastic piece 7, an equidistant tooth-shaped structure is arranged on the rack 6, and the tooth shape is meshed with the ratchet on the pawl 4. In the initial state, the pawl 4 is meshed with the bar at the end part of the rack 6, when the rack 6 moves, the pawl 4 is pressed to rotate downwards against the elastic force of the elastic sheet 3, so that the pawl 4 is out of meshed with the tooth form at the end part of the rack 6 and meshed with the next tooth form on the rack 6, after the sleeve 5 moves outwards, the free length of the steel wire rope 9 can be eliminated and absorbed by the adjusting device, so as to ensure the tension of the steel wire rope 9, and meanwhile, due to the unidirectional action of the rack 6 and the pawl 4, the pawl 4 can not return to meshed with the tooth form at the end part any more, so that the tension of the steel wire rope 9 can be maintained. The fixing of the sleeve 5 is realized through the matching of the rack 6, the pawl 4 and the elastic sheet 3, so that the structure is simple, the matching is tight, and the cost is low.
Preferably, the sleeve 5 is provided with a recess 51, and the rack 6 is mounted in the recess 51 on the sleeve 5. The fixing mechanism also comprises a spring plate seat 2; the spring plate seat 2 is arranged in the accommodating cavity 11; the spring plate 3 is arranged on the spring plate seat 2; one end of the pawl 4 is rotationally connected with the spring plate seat 2, one surface of the other end of the pawl 4 provided with a ratchet is meshed with the rack 6, and the other surface is abutted with the spring plate 3. One end of the pawl 4 connected with the spring plate seat 2 is in a sphere shape, a circular groove is arranged on the spring plate seat 2, and one end of the sphere shape of the pawl 4 is arranged in the circular groove, so that the pawl 4 can be rotatably arranged on the spring plate seat 2. The spring plate seat 2 is a strip-shaped main body, and the spring plate seat 2 is tightly matched and fixed with the accommodating cavity 11 of the shell 1. One end of the spring plate seat 2 is provided with an opening, one surface of the spring plate seat 2 provided with the opening is also provided with a spring plate mounting groove, the spring plate 3 is a U-shaped metal spring plate, one end of the spring plate 3 is fixed in the spring plate mounting groove, and the other end of the spring plate 3 is arranged in the opening of the spring plate seat 2 and is abutted against the pawl 4. One end of the pawl 4 is a sphere and is arranged in a circular groove on the spring plate seat 2, so that the pawl 4 can be rotatably arranged, and when the rack 6 moves, the rack 6 can press the pawl 4 to overcome the elasticity of the spring plate 3 and rotate downwards, so that the pawl 4 is meshed with the next tooth form of the rack 6. When the steel wire rope 9 is in a stressed and tensioned state, the pawl 4 can not return to meshed with the original tooth form due to the unidirectional action of the rack 6 and the pawl 4, so that the tension of the steel wire rope 9 is maintained.
In a third embodiment, on the basis of the first embodiment, the fixing mechanism includes a plurality of telescopic members; a plurality of grooves (not shown) are provided on the inner wall of the accommodation chamber 11 in the moving direction of the sleeve 5; each groove is internally provided with a telescopic member (not shown in the figure), the telescopic members are telescopically arranged in the grooves along the direction perpendicular to the moving direction of the sleeve 5, if the sleeve 5 moves along the horizontal direction, the telescopic members are telescopically arranged in the grooves along the vertical direction, the telescopic members can be telescopic by springs, namely, the springs are arranged at the bottoms of the telescopic members, one ends of the telescopic members are connected with the springs, and the other ends of the telescopic members are free ends and extend out of the grooves. When the sleeve 5 is in the initial position, the free end of the telescopic member presses the spring to compress under the action of the pressure of the sleeve 5, so that the free end of the telescopic member stretches into the groove, and when the sleeve 5 moves towards the side far away from the through hole 12, the free end of at least one telescopic member loses the pressure of the sleeve 5 and stretches out of the groove under the action of the spring so as to fix the sleeve 5 to prevent the sleeve 5 from returning to the initial position. According to the embodiment, the size of the tension adjusting device can be reduced and the structure of the tension adjusting device can be simplified through the matching of the grooves and the telescopic pieces.
In the fourth embodiment, on the basis of the first, second or third embodiment, a stepped hole is formed in the sleeve 5, and one end of the flexible shaft pressure tube 8 extends into the sleeve 5 and abuts against the stepped hole, so that the elastic member 7 is in a compressed state. The elastic element 7 is a spring, the elastic element 7 is in clearance fit with the sleeve 5, the elastic element 7 is located between the sleeve 5 and the shell 1, one end of the elastic element 7 is abutted with the shell 1, the other end of the elastic element 7 is abutted with the end of the sleeve 5, and the flexible shaft pressure tube 8 can enable the elastic element 7 to be in a compressed state through the stepped hole in the sleeve 5.
In a fifth embodiment, as shown in fig. 1 to 6, a glass lifter includes a wire reel 14, a slider 13, a guide rail 10, an upper wire rope 91, a lower wire rope 92, and a wire rope tension adjusting device 15, wherein the wire rope tension adjusting device 15 is disposed in the lower wire rope 92; the steel wire rope tension adjusting device 15 comprises a shell 1, a sleeve 5, an elastic piece 7, a flexible shaft pressure pipe 8 and a fixing mechanism; the shell 1 is internally provided with a containing cavity 11 and one end of the shell is provided with an opening; one end of the sleeve 5 extends into the accommodating cavity 11 and is in sliding fit with the accommodating cavity 11, and the other end of the sleeve 5 is positioned at one side far away from the through hole 12; the elastic piece 7 is sleeved on the outer wall of one end of the sleeve 5 extending out of the shell 1; one end of the sleeve 5 extending out of the shell 1 is propped against the flexible shaft pressure pipe 8, so that the elastic piece 7 is in a compressed state; the fixing mechanism is provided in the accommodation chamber 11 for preventing the sleeve 5 from returning to the original position when the sleeve 5 moves toward the side away from the through hole 12 by the elastic member 7.
In actual use, the wire rope tension adjusting device 15 is assembled in the lower wire rope 92 in series, and one end of the wire rope tension adjusting device 15, to which the flexible shaft pressure tube 8 is not connected, is fixed at the lower end of the guide rail 10 (as shown in fig. 5) or at the lower outlet end of the housing of the wire winding drum 14 (as shown in fig. 6), and of course, the position of the wire rope tension adjusting device 15 in the glass lifter can be determined according to actual needs or convenience. The wire rope 9 passes through the center of the through hole 12 of the wire rope tension adjusting device 15, the sleeve 5 and the flexible shaft pressure pipe 8, so that the wire rope 9 forms a closed loop in the glass lifter. The flexible shaft pressure tube 8 is a flexible shaft hollow tube made of a steel spiral steel belt, the shape of the flexible shaft pressure tube 8 can be bent and deformed, but the length of the flexible shaft pressure tube 8 cannot be changed, and the length of the steel wire rope 9 outside the flexible shaft pressure tube 8 is the effective length to be controlled. When the ascending switch of the glass lifter is pressed down, the motor drives the wire winding drum 14 to rotate, so that the upper section of steel wire rope 91 is wound into the wire winding drum 14, the upper section of steel wire rope 91 is in a tensioning stress state and drives the sliding block 13 to ascend, and the door glass ascends; while lower length of wire 92 is released from spool 14 in a relatively relaxed state. The elastic element 7 (spring) in the wire rope tension adjusting device 15 always has an outward pushing force on the sleeve 5, in the initial state, the wire rope 9 has no free length, the wire rope 9 in the wire rope tension adjusting device 15 is in a tensioning state, and the sleeve 5 cannot move; because the elastic element 7 always has an outward pushing force to the sleeve 5, when the free length of the steel wire rope 9 is increased to a certain size, the steel wire rope 9 in the steel wire rope tension adjusting device 15 has a certain redundancy, and at the moment, the sleeve 5 is movable, so that the sleeve 5 slides outwards under the pushing of the elastic force of the elastic element 7, the sleeve 5 is fixed by the fixing mechanism to prevent the sleeve 5 from returning to the initial position, and the free length part of the steel wire rope 9 is eliminated and absorbed by the adjusting device, so that the tension of the steel wire rope 9 is ensured, and the running stability of the glass lifter is further maintained.
In the sixth embodiment, as shown in fig. 1 to 4, on the basis of the fifth embodiment, the fixing mechanism includes a rack 6, a pawl 4 and a spring 3; the rack 6 is arranged on the side wall of one end of the sleeve 5 extending into the shell 1; the pawl 4 and the elastic sheet 3 are respectively arranged in the accommodating cavity 11, one surface of the pawl 4 provided with a ratchet is meshed with the rack 6, and the other surface of the pawl 4 is abutted with the elastic sheet 3. Assuming that the pitch of the rack 6 is set to 2mm, when the free length of the wire rope 9 is less than one pitch, the meshing gear position of the pawl 4 and the rack 6 is unchanged, when the free length of the wire rope 9 is increased to a certain size, the sleeve 5 drives the rack 6 on the sleeve 5 to move when being pushed to slide outwards by the elastic force of the elastic piece 7, an equidistant tooth-shaped structure is arranged on the rack 6, and the tooth shape is meshed with the ratchet on the pawl 4. In the initial state, the pawl 4 is meshed with the bar at the end part of the rack 6, when the rack 6 moves, the pawl 4 is pressed to rotate downwards against the elastic force of the elastic sheet 3, so that the pawl 4 is out of meshed with the tooth form at the end part of the rack 6 and meshed with the next tooth form on the rack 6, after the sleeve 5 moves outwards, the free length of the steel wire rope 9 can be eliminated and absorbed by the adjusting device, so as to ensure the tension of the steel wire rope 9, and meanwhile, due to the unidirectional action of the rack 6 and the pawl 4, the pawl 4 can not return to meshed with the tooth form at the end part any more, so that the tension of the steel wire rope 9 can be maintained. The fixing of the sleeve 5 is realized through the matching of the rack 6, the pawl 4 and the elastic sheet 3, so that the structure is simple, the matching is tight, and the cost is low.
Preferably, the sleeve 5 is provided with a recess 51, and the rack 6 is mounted in the recess 51 on the sleeve 5. The fixing mechanism also comprises a spring plate seat 2; the spring plate seat 2 is arranged in the accommodating cavity 11; the spring plate 3 is arranged on the spring plate seat 2; one end of the pawl 4 is rotationally connected with the spring plate seat 2, one surface of the other end of the pawl 4 provided with a ratchet is meshed with the rack 6, and the other surface is abutted with the spring plate 3. One end of the pawl 4 connected with the spring plate seat 2 is in a sphere shape, a circular groove is arranged on the spring plate seat 2, and one end of the sphere shape of the pawl 4 is arranged in the circular groove, so that the pawl 4 can be rotatably arranged on the spring plate seat 2. The spring plate seat 2 is a strip-shaped main body, and the spring plate seat 2 is tightly matched and fixed with the accommodating cavity 11 of the shell 1. One end of the spring plate seat 2 is provided with an opening, one surface of the spring plate seat 2 provided with the opening is also provided with a spring plate mounting groove, the spring plate 3 is a U-shaped metal spring plate, one end of the spring plate 3 is fixed in the spring plate mounting groove, and the other end of the spring plate 3 is arranged in the opening of the spring plate seat 2 and is abutted against the pawl 4. One end of the pawl 4 is a sphere and is arranged in a circular groove on the spring plate seat 2, so that the pawl 4 can be rotatably arranged, and when the rack 6 moves, the rack 6 can press the pawl 4 to overcome the elasticity of the spring plate 3 and rotate downwards, so that the pawl 4 is meshed with the next tooth form of the rack 6. When the glass descends, the lower section of steel wire rope 92 is in a stressed tension state, and the pawl 4 can not return to meshed with the original tooth form due to the unidirectional action of the rack 6 and the pawl 4, so that the tension of the steel wire rope 9 is maintained.
In a seventh embodiment, on the basis of the fifth embodiment, the fixing mechanism includes a plurality of expansion pieces; a plurality of grooves are formed on the inner wall of the accommodating cavity 11 along the moving direction of the sleeve 5; a telescopic piece is arranged in each groove, the telescopic piece is telescopically arranged in the grooves along the direction perpendicular to the moving direction of the sleeve 5, if the sleeve 5 moves along the horizontal direction, the telescopic piece is telescopically arranged in the grooves along the vertical direction, the telescopic piece can be telescopic by a spring, namely, the bottom of the telescopic piece is provided with the spring, one end of the telescopic piece is connected with the spring, and the other end of the telescopic piece is a free end and extends out of the grooves. When the sleeve 5 is in the initial position, the free end of the telescopic member presses the spring to compress under the action of the pressure of the sleeve 5, so that the free end of the telescopic member stretches into the groove, and when the sleeve 5 moves towards the side far away from the through hole 12, the free end of at least one telescopic member loses the pressure of the sleeve 5 and stretches out of the groove under the action of the spring so as to fix the sleeve 5 to prevent the sleeve 5 from returning to the initial position. According to the embodiment, the size of the tension adjusting device can be reduced and the structure of the tension adjusting device can be simplified through the matching of the grooves and the telescopic pieces.
In the eighth embodiment, on the basis of the fifth, sixth or seventh embodiment, the sleeve 5 is provided with a stepped hole therein, and one end of the flexible shaft pressure tube 8 extends into the sleeve 5 and abuts against the stepped hole, so that the elastic member 7 is in a compressed state. The elastic piece 7 is a spring, the spring is in clearance fit with the sleeve 5, the spring is located between the sleeve 5 and the shell 1, one end of the spring is abutted with the shell 1, the other end of the spring is abutted with the end of the sleeve 5, and the flexible shaft pressure pipe 8 can enable the elastic piece 7 to be in a compressed state through abutting against a stepped hole in the sleeve 5.
It should be noted that the above embodiments can be freely combined as needed. The foregoing is merely a preferred embodiment of the present invention and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present invention, which are intended to be comprehended within the scope of the present invention.
Claims (2)
1. The tension adjusting device for the steel wire rope is characterized by comprising a shell, a sleeve, an elastic piece, a flexible shaft pressure pipe and a fixing mechanism;
A containing cavity is arranged in the shell, one end of the containing cavity is opened, and a through hole communicated with the containing cavity is formed in the side wall of the other end of the containing cavity;
one end of the sleeve extends into the accommodating cavity and is in sliding fit with the accommodating cavity, and the other end of the sleeve is positioned outside the shell;
The elastic piece is sleeved on the outer wall of one end of the sleeve extending out of the shell;
A stepped hole is formed in one end, extending out of the shell, of the sleeve, and one end of the flexible shaft pressure pipe extends into the sleeve and is abutted against the stepped hole, so that the elastic piece is in a compressed state;
the fixing mechanism is arranged in the accommodating cavity, and when the sleeve moves towards one side far away from the through hole under the action of the elastic piece, the fixing mechanism fixes the sleeve to prevent the sleeve from returning to the initial position;
Wherein the fixing mechanism comprises a plurality of telescopic members;
a plurality of grooves are formed in the inner wall of the accommodating cavity along the moving direction of the sleeve;
each groove is internally provided with a telescopic piece, and the telescopic piece is telescopically arranged in the groove along the direction perpendicular to the moving direction of the sleeve;
when the sleeve is at the initial position, the free end of the telescopic piece stretches into the groove under the pressure action of the sleeve, and when the sleeve moves towards the side far away from the through hole, the free end of at least one telescopic piece stretches out of the groove to fix the sleeve so as to prevent the sleeve from returning to the initial position.
2. The glass lifter comprises a wire winding drum, a sliding block, a guide rail, an upper section of steel wire rope and a lower section of steel wire rope, and is characterized by further comprising a steel wire rope tension adjusting device, wherein the steel wire rope tension adjusting device is arranged in the lower section of steel wire rope;
The steel wire rope tension adjusting device comprises a shell, a sleeve, an elastic piece, a flexible shaft pressure pipe and a fixing mechanism;
The shell is internally provided with a containing cavity, one end of the containing cavity is provided with an opening, and the side wall of the other end of the containing cavity is provided with a through hole communicated with the containing cavity;
one end of the sleeve extends into the accommodating cavity and is in sliding fit with the accommodating cavity, and the other end of the sleeve is positioned at one side far away from the through hole;
The elastic piece is sleeved on the outer wall of one end of the sleeve extending out of the shell;
A stepped hole is formed in one end, extending out of the shell, of the sleeve, and one end of the flexible shaft pressure pipe extends into the sleeve and is abutted against the stepped hole, so that the elastic piece is in a compressed state;
The fixing mechanism is arranged in the accommodating cavity, and is used for preventing the sleeve from returning to the initial position when the sleeve moves towards one side far away from the through hole under the action of the elastic piece;
Wherein the fixing mechanism comprises a plurality of telescopic members;
a plurality of grooves are formed in the inner wall of the accommodating cavity along the moving direction of the sleeve;
each groove is internally provided with a telescopic piece, and the telescopic piece is telescopically arranged in the groove along the direction perpendicular to the moving direction of the sleeve;
when the sleeve is at the initial position, the free end of the telescopic piece stretches into the groove under the pressure action of the sleeve, and when the sleeve moves towards the side far away from the through hole, the free end of at least one telescopic piece stretches out of the groove to fix the sleeve so as to prevent the sleeve from returning to the initial position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022386.9A CN111425102B (en) | 2019-01-10 | 2019-01-10 | Steel wire rope tension adjusting device and glass lifter |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910022386.9A CN111425102B (en) | 2019-01-10 | 2019-01-10 | Steel wire rope tension adjusting device and glass lifter |
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| CN111425102A CN111425102A (en) | 2020-07-17 |
| CN111425102B true CN111425102B (en) | 2024-05-31 |
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| JPH08232525A (en) * | 1995-02-28 | 1996-09-10 | Nippon Cable Syst Inc | Auto-closure and cable driving device thereof and door locking device |
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| CN102322197A (en) * | 2011-09-01 | 2012-01-18 | 万泰工业（大连）有限公司 | Rope pulley type glass lifter |
| CN103210166A (en) * | 2010-11-08 | 2013-07-17 | 八千代工业株式会社 | Window regulator |
| JP2015148090A (en) * | 2014-02-06 | 2015-08-20 | 株式会社城南製作所 | Method of manufacturing window regulator |
| CN209874838U (en) * | 2019-01-10 | 2019-12-31 | 上海实业交通电器有限公司 | Steel wire rope tension adjusting device and glass lifter |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08232525A (en) * | 1995-02-28 | 1996-09-10 | Nippon Cable Syst Inc | Auto-closure and cable driving device thereof and door locking device |
| EP0759496A1 (en) * | 1995-08-02 | 1997-02-26 | Hohe GmbH & Co | Electrical window regulator |
| JP2010174593A (en) * | 2009-02-02 | 2010-08-12 | Mitsui Mining & Smelting Co Ltd | Tensioning device |
| CN103210166A (en) * | 2010-11-08 | 2013-07-17 | 八千代工业株式会社 | Window regulator |
| CN102322197A (en) * | 2011-09-01 | 2012-01-18 | 万泰工业（大连）有限公司 | Rope pulley type glass lifter |
| JP2015148090A (en) * | 2014-02-06 | 2015-08-20 | 株式会社城南製作所 | Method of manufacturing window regulator |
| CN209874838U (en) * | 2019-01-10 | 2019-12-31 | 上海实业交通电器有限公司 | Steel wire rope tension adjusting device and glass lifter |
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| Publication number | Publication date |
|---|---|
| CN111425102A (en) | 2020-07-17 |
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