CN109826494B - Reversing mechanism of door handle - Google Patents
Reversing mechanism of door handle Download PDFInfo
- Publication number
- CN109826494B CN109826494B CN201910281715.1A CN201910281715A CN109826494B CN 109826494 B CN109826494 B CN 109826494B CN 201910281715 A CN201910281715 A CN 201910281715A CN 109826494 B CN109826494 B CN 109826494B
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- pin
- reversing
- door handle
- rotating shaft
- shaft
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- 230000007246 mechanism Effects 0.000 title claims abstract description 30
- 238000003825 pressing Methods 0.000 description 12
- 238000009434 installation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000007769 metal material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229910052755 nonmetal Inorganic materials 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000004381 surface treatment Methods 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B3/00—Fastening knobs or handles to lock or latch parts
- E05B3/04—Fastening the knob or the handle shank to the spindle by screws, springs or snap bolts
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- E—FIXED CONSTRUCTIONS
- E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
- E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
- E05B63/00—Locks or fastenings with special structural characteristics
- E05B63/04—Locks or fastenings with special structural characteristics for alternative use on the right-hand or left-hand side of wings
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- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Lock And Its Accessories (AREA)
- Dc Machiner (AREA)
- Motor Or Generator Current Collectors (AREA)
Abstract
The reversing mechanism of the door handle comprises a support assembly, wherein the support assembly comprises a front end support part and a rear end support part, an accommodating space is arranged between the front end support part and the rear end support part, and a rotating shaft is rotatably arranged on the front end support part and the rear end support part; the reversing sheet and the torsion spring are arranged in the accommodating space and are sequentially sleeved on the rotating shaft, the rotating shaft is provided with a gear supporting the two free arm ends of the torsion spring, the reversing sheet is provided with an extending foot, the extending foot is positioned at the side edge of the gear, and the gear and the extending foot are simultaneously positioned in the range clamped by the two free arm ends of the torsion spring; the tail end of the pin is combined with the rear end supporting part and can elastically move in the axial direction, an axial pin hole is formed in the front end supporting part, and the top end part of the pin can extend into the axial pin hole; two clamping positions are also arranged on the reversing sheet. Thus, when the pin is in a free state, the rotating shaft can rotate relative to the reversing sheet; when the pin is propped against and separated from the reversing piece, the rotating shaft can rotate together with the torsion spring and the reversing piece.
Description
Technical Field
The invention relates to a door lock, in particular to a door handle for the door lock and a reversing mechanism thereof.
Background
The prior art has a relatively large number of reversing structures relating to door handles, and in recent years, the applicant has filed a number of reversing structures relating to the handle. Among other application schemes, the applicant focuses attention on patent scheme of application number 201510230938.7, and the specification of the application is entitled an electronic lock, and a reversing mechanism is described in the specification, and referring to the specification and fig. 12-18 of the specification, the handle reversing assembly 6 comprises a front handle 601 mounted on the outer surface of the front panel 1 and capable of rotating around the front handle 601, a reversing chuck 607 linked with the front handle 601 is mounted on the end surface of the inner surface of the front panel 1, a first clamping point 608 and a second clamping point 609 are arranged on the reversing chuck 607 on two sides, a reversing pressing block 602 capable of moving towards the outer direction of the front panel 1 is mounted on one side of the reversing chuck 607 on the inner surface of the front panel 1, a protruding block 605 is arranged on one side of the reversing pressing block 602 close to the reversing chuck 607, when the reversing pressing block 602 is located at a first position, the protruding block 605 can be clamped with the first clamping point 608 or the second clamping point 609, when the reversing pressing block 602 is located at a second position, the protruding block 605 is located at a right-open state or left-open state, and when the reversing pressing block 602 is located at a second position, the protruding block 605 is separated from the first clamping point 608 and the second clamping point 609 and the right-open state can be switched between the right-open state and the first state and the left-open state. The invention realizes left and right switching of the front handle 601 through the matching of the switching chuck 607 and the switching press block 602, has simple structure, convenient operation and high universality, and the installation positions of the switching chuck 607 and the switching press block 602 are the spare parts beside the front handle 601 in the front panel 1, and the arrangement of the moving direction of the switching press block 602 do not occupy the space of other structural parts, so that the occupied space is small. The inner surface of the front panel 1 is provided with a mounting groove 611 for mounting the reversing press block 602, and the mounting groove 611 is internally provided with a guide rail 612 along which the reversing press block 602 moves, so that the reversing press block 602 stably moves towards the inner and outer directions of the front panel and does not shake left and right. The reversing press 602 is provided with symmetrically arranged guide bumps 606 which can move along the guide rail 612, so that the reversing press 602 can conveniently move. A round hole 604 is formed in the inner end of the reversing pressing block 602, and a spring (not labeled in the figure) is installed between the round hole 604 and the front panel 1. The reversing press 602 is restored by the elastic force of a spring (not shown) whose length is determined according to the height of the reversing chuck 607 and the depth of the circular hole 604, and uses a proper strength. The outer end of the reversing pressing block 602 in this embodiment is provided with a cylindrical protrusion 603 for pressing, which is convenient for operating the reversing pressing block 602. During installation, the reversing chuck 607 is fixed on the front handle 601 and is linked with the front handle 601, a proper spring (not labeled in the figure) is placed into the round hole 604 at the inner end of the reversing press block 602, and the reversing press block 602 is placed into the installation groove 611 on the front panel 1, at this time, two symmetrical guide protruding points 606 on the reversing press block 602 serve as guide in the guide rail 612 in the installation groove 611, so that the reversing press block 602 can move towards the inner and outer directions of the front panel 1. When the front handle 601 is left open, after installation, due to the existence of a spring (not labeled in the figure) installed in the reversing press block 602, the bump 605 on the reversing press block 602 is clamped with the second clamping point 609 on the reversing chuck 607, at this time, the front handle 601 can be normally pressed downwards to open the door, and after release, the door is reset to the horizontal position, see fig. 15. When the front handle 601 is required to be turned, the cylindrical protrusion 603 on the turning block 602 is pressed inwards towards the direction of the front panel 1, the spring (not labeled in the figure) installed in the turning block 602 is extruded, the turning block 602 slides inwards towards the panel, at this time, the protrusion 605 on the turning block 602 is separated from the second clamping point 609 on the turning chuck 607, see fig. 16, at this time, the front handle 601 can be turned upwards, see fig. 17. After the front handle 601 rotates 180 degrees, at this time, the front handle 601 is turned into a right open state, the cylindrical protrusion 603 on the reversing press block 602 is loosened, the spring (not labeled in the figure) installed in the reversing press block 602 is restored, the reversing press block 602 slides outwards towards the opposite direction of the front panel 1, so that the protrusion 605 on the reversing press block 602 is clamped with the first clamping point 608 on the reversing chuck 607, at this time, the front handle 601 can be normally pressed downwards to open the door, and the front handle 601 is reset to a horizontal position after being loosened, see fig. 18, and the reversing of the front handle 601 is completed, so that the operation is very convenient.
The technical scheme does not further disclose the connection relation between the reversing chuck and the front handle and how to realize the reversing linkage relation, and the reversing pressing block is only positioned in the mounting groove, so that the top end of the reversing pressing block cannot bear any radial moment to deflect. For this reason, there is still a need for further improvements in the above solutions, in order to make them more stable and simple to use.
Disclosure of Invention
Based on the defects of the prior art, the invention provides a reversing mechanism of a door handle, which is characterized by comprising a supporting component, a rotating shaft, reversing pieces, torsion springs, pins and the door handle; wherein,
the support assembly comprises a front end support part for supporting the front shaft end of the rotating shaft and a rear end support part for supporting the rear shaft end of the rotating shaft, wherein the front end support part and the rear end support part are arranged front and back and are provided with accommodating spaces therebetween, the rotating shaft is rotatably arranged on the front end support part and the rear end support part through the front shaft end and the rear shaft end of the rotating shaft, and the rear shaft end of the rotating shaft is connected with the door handle;
the reversing sheet and the torsion spring are arranged in the accommodating space and are sequentially sleeved on the rotating shaft, the torsion spring is provided with a ring spring main body and two free arm ends extending from the ring spring main body, the rotating shaft is provided with a gear supporting the two free arm ends, the reversing sheet is provided with an extending pin, and the extending pin is positioned at the side edge of the gear and enables the gear and the extending pin to be simultaneously positioned in the range clamped by the two free arm ends of the torsion spring;
The pin is columnar, the tail end of the pin is combined at an eccentric position on the rear end supporting part and can elastically move in the axial direction, the front end supporting part is provided with an axial pin hole corresponding to the pin, the top end part of the pin can extend into the axial pin hole, and the axial pin hole penetrates through the outer surface of the front end supporting part and can press the pin to be prevented from being ejected from the axial pin hole;
the reversing sheet is also provided with at least two clamping positions which are matched with the pins and can be penetrated by the pins, the rotation angle between every two adjacent clamping positions is theta, when the pins are in a free state, the pins can extend into at least one clamping position to clamp the reversing sheet, the top end parts of the pins also extend into the axial pin holes, and at the moment, the rotating shaft can rotate relative to the reversing sheet; when the pin is propped to be separated from the reversing piece, the two free arm ends of the torsion spring clamp the structure of the extending pin, the rotating shaft can rotate together with the torsion spring and the reversing piece, and when the rotating shaft and the reversing piece rotate theta, the pin pops out to reset, and the reset pin can stretch into at least one other clamping position to clamp the reversing piece.
The rear shaft end of the rotating shaft is connected with the door handle, the rear shaft end of the rotating shaft is defined to be connected with the door handle, the rear shaft end of the rotating shaft extends out of the rear end supporting portion to be connected with the door handle, the rear shaft end of the rotating shaft is arranged on the door handle and extends into the rear end supporting portion to be connected with the rear shaft end of the rotating shaft, and the rotating shaft and the door handle are of an integrated structure.
The gear is defined to be arranged on the rotating shaft, and the two free arm ends are supported, namely, the two free arm ends are clamped at two side positions of the gear due to elastic force; secondly, the position of the extending leg is defined, which is not only located at the side edge of the gear but also located in the range clamped by the two free arm ends of the torsion spring, so that when the reversing sheet is clamped and can not rotate, the rotating shaft is rotated clockwise to rotate with the torsion spring, the rotating shaft can rotate relative to the reversing sheet, the left free end of the torsion spring is propped against the left end side of the extending leg and can not move, and the free end of the right end of the torsion spring is driven by the gear to rotate along with the rotating shaft and leaves the right end side of the extending leg, and vice versa; the torsion spring resets the rotating shaft when the rotating of the rotating shaft is stopped. Since the rotation shaft is connected with the door handle, the rotation of the door handle can drive the rotation shaft to rotate. In addition, the range clamped by the two free arm ends of the torsion spring refers to the range contained by the restoring elastic force of the two free arm ends of the torsion spring.
The gear and the extension leg may be a protruding member, respectively, if the nip between the two free arm ends of the torsion spring is relatively small, for example, less than 45 °, and may be a protruding member, respectively, or two protruding members, respectively, spaced apart from each other, if the nip between the two free arm ends of the torsion spring is relatively large, for example, greater than 90 °.
Wherein the pin has a cylindrical shape, and the tail end of the pin is coupled to an eccentric position on the rear end support portion but is elastically movable in the axial direction, and a structure in which the tail end of the pin is radially positioned and positioned on the rear end support portion is defined, for which it is movable in the axial direction due to an elastic force. The radial positioning may be achieved by limiting the radial movement in the axial groove but axial movement as in the prior art, or by inserting a stem into the axial central bore of the pin so that the pin is not radially movable but axially movable.
The axial pin hole penetrates through the outer surface of the front end supporting part, but can press the pin to be prevented from being ejected from the axial pin hole, the top end part of the pin is defined in the axial pin hole, and the pin can be pushed from the outer surface of the front end supporting part to the inner end direction to axially move away from the front end supporting part and the reversing piece.
The clamping position is used for being combined with the pin to clamp the reversing sheet, and the clamping position can be a hole-shaped positioning hole arranged at the side edge of the reversing sheet or a groove-shaped positioning groove arranged at the periphery of the reversing sheet. The rotation angle between two adjacent clamping positions is theta, and the rotation angle is an included angle between connecting lines between the two adjacent clamping positions and the central point of the reversing sheet respectively. θ may be 45 °, 90 ° or 180 °, etc., set as required by a specific setting, and a suitable number of detents, for example, 2, 4, etc., are configured accordingly.
According to the technical scheme, the beneficial technical effects of the method are as follows:
(1) The reversing mechanism of the door handle not only can realize reversing positioning of the reversing piece by means of the pin, but also can jointly radially position the upper end and the lower end of the pin by means of the front end supporting part and the rear end supporting part, so that the pin does not incline radially and the reversing piece does not deviate when the door handle and the rotating shaft are rotated after reversing is completed;
(2) The reversing mechanism of the door handle is provided with the structure that the axial pin hole penetrates through the outer surface of the front end supporting part but can press the pin to prevent the pin from being ejected from the axial pin hole, so that the pin is only pressed on the outer surface of the front end supporting part when the handle reversing work is carried out on the engineering site, and the door handle reversing mechanism is very simple and convenient.
(3) Because the reversing piece is positioned in the accommodating space, the front end supporting part or the rear end supporting part can also press the reversing piece in the axial direction, so that the reversing piece is stable in reversing rotation, and the axial runout or the shaking of the reversing piece is reduced.
(4) The reversing mechanism of the door handle can also clamp the extending foot of the reversing piece by means of the two free arm ends of the torsion spring, and after the reversing piece is unlocked by the pin, reversing linkage between the rotating shaft and the reversing piece can be realized by means of the two free arm ends of the torsion spring.
(5) The reversing mechanism of the door handle can clamp the extending feet of the reversing piece and the gear by means of the two free arm ends of the torsion spring, and after the reversing piece is clamped by the pin, the extending feet can become the positioning reference of the two free arm ends of the torsion spring and the limit reference of the radial rotation range of the rotating shaft.
(6) In the daily use of the lockset product, the automatic resetting of the door handle (always in the horizontal position) can also be realized by means of the torsion spring.
Further technical scheme may be that the supporting component includes an upper cover and a base arranged front and back, the front end supporting portion is arranged on the upper cover, the rear end supporting portion is arranged on the base, and the upper cover is connected with the base. In this way, by the connection structure between the upper cover and the base, the mounting stability of the members, such as the commutator segments, torsion springs, disposed in the accommodation space between the front end support portion and the rear end support portion in the axial direction is enhanced. In addition, the upper cover, the base and the components arranged in the accommodating space can be assembled into an integrated module with independent structural relation, so that the modular production of door handle products is facilitated, and the production efficiency is improved.
The door handle reversing mechanism is also provided with a lock panel, and the following technical scheme can be further adopted between the base and the lock panel:
the first alternative technical scheme is that the lock further comprises a lock panel, and the base and the lock panel are integrally formed. This simplifies the construction and mounting operation of the lock.
The second optional technical scheme is that the lock further comprises a lock panel, the base and the lock panel are arranged separately, the base is detachably connected to the inner side of the lock panel through screws, and a panel hole corresponding to the rotating shaft is formed in the lock panel. In this way, the lock panel and the base may be made of different materials, for example, the base may be made of a metal material to provide a relatively stable positioning for the rotation shaft, and the lock panel may be made of a non-metal material such as plastic, resin, etc. for cost saving. In addition, the lock panel can also be provided with different colors and textures by adopting a surface treatment process different from that of the base. The split structure between the base and the lock panel enables the arrangement of the base and the lock panel in terms of structure and appearance to be more flexible and diversified.
In order to enrich the appearance of the lock, the lock further comprises a lock panel and a decorative cover, wherein the decorative cover is positioned on the outer side of the lock panel and detachably connected to the lock panel, through holes corresponding to the rotating shaft are respectively formed in the lock panel and the decorative cover, and the through holes in the lock panel and the through holes in the decorative cover are on the same axis. The lock comprises a lock panel, a decorative cover and a lock cover, wherein the decorative cover and the lock panel are in a split structure, and therefore the decorative cover can be configured with different colors and materials from the lock panel, and the lock appearance can be enriched.
In order to enable the torsion spring to have relatively stable axial positioning on the rotating shaft, a further technical scheme may be that the rotating shaft comprises a main shaft body and a protruding edge protruding radially on the main shaft body, the gear is axially arranged and connected to the protruding edge, the gear and the protruding edge are located between a front shaft end and a rear shaft end of the rotating shaft, a radial avoidance space is formed between the gear and the main shaft body, and a coil spring main body of the torsion spring is arranged in the radial avoidance space.
The protruding edge can be a structural body integrally formed on the main shaft body or an independent component which is independent of the main shaft body and is sleeved on the main shaft body. In addition, the above feature defines a structural feature of the protruding edge protruding in the radial direction, the protruding edge being a solid extending in the axial direction perpendicular to the main shaft body, the protruding edge having not only an axial thickness but also a radial width.
Wherein, keep off the position and protruding limit is located between the front axle head and the rear axle head of axis of rotation. The above features define the setting positions of the gear and the protruding edge, which may be located at any position between the front shaft end and the rear shaft end of the rotating shaft, but not located on the front shaft end and the rear shaft end of the rotating shaft, so that the installation space can be set up for the cooperation of the front end supporting portion and the rear end supporting portion with the main shaft body respectively.
Wherein, the circle spring main part of torsional spring is arranged in the radial space of dodging. In this way, the radial avoidance space becomes an arrangement space of the coil spring main body of the torsion spring, and the torsion spring can be axially positioned. The torsion spring is stably positioned on the rotating shaft and assembled into an independent module together with the rotating shaft, so that the lockset is convenient to assemble.
Further, the gear may further include a first gear and a second gear that are separately disposed, the extension leg includes a first extension leg and a second extension leg that are separately disposed, the first extension leg is located on a side of the first gear, the second extension leg is located on a side of the second gear, and a clamping central angle of two free arm ends of the torsion spring with respect to a rotation center of the rotation shaft is greater than 90 °.
In order to limit the rotation stroke of the rotation shaft, the further technical scheme may be that the rotation shaft further includes a radially protruding limit protrusion, and when the rotation shaft rotates relative to the reversing sheet, the limit protrusion may abut against the extending leg provided on the reversing sheet, so as to limit the rotation stroke of the rotation shaft. The limiting protrusion is a three-dimensional protrusion extending along the axial direction perpendicular to the main shaft body, and the limiting protrusion not only has axial thickness, but also has radial width. Thus, when the commutator segment is fixed and cannot rotate, the extending feet on the commutator segment limit the rotation stroke of the rotating shaft, and the rotating shaft can only rotate freely in a specific rotation stroke and cannot rotate and change direction.
In order to make the rotation process of the rotation shaft smoother, a further technical scheme can be that bearings are respectively arranged between the front shaft end of the rotation shaft and the front end supporting part of the supporting component, and between the rear shaft end of the rotation shaft and the rear end supporting part of the supporting component and are connected through the bearings. In this way, the bearing, which is disposed in a front-rear manner, can provide a front support point and a rear support point for the rotation shaft, thereby reducing or avoiding the occurrence of a remarkable shake (virtual position) when the door handle swings in the front-rear direction with the rotation shaft as a fulcrum. In addition, the arrangement of the bearing can reduce sliding friction force between the rotating shaft and the front end supporting part and between the rotating shaft and the rear end supporting part, so that the rotating shaft is smoother when rotating.
In order to make the pin be elastically movable in the axial direction, a further technical solution may be that an axial spring hole arranged in the axial direction is further provided at an eccentric position on the rear end support portion, a pin return spring is accommodated in the axial spring hole, and the pin is capable of being pressed into the axial spring hole and pressing against the pin return spring. In this way, the pin can axially and elastically move under the action of the pin return spring, and the pin return spring returns and stretches into the clamping position to clamp the reversing piece. In addition, the axial spring hole not only can radially position the pin, but also can provide a retreating space for retreating the pin to be separated from the clamping position of the reversing piece.
In order to simplify the mounting operation of the door handle and to ensure the mounting stability of the door handle, a further technical solution may be that the door handle is provided separately from the rotation shaft, the door handle is provided with a threaded hole, the axial center of the rotation shaft is provided with an axial through hole, and a bolt is connected to the threaded hole of the door handle through the axial through hole of the rotation shaft so as to detachably connect the door handle with the rotation shaft. Therefore, the detachable connection structure is adopted between the door handle and the rotating shaft, the installation of the rotating shaft, the supporting component, the reversing piece and other components is greatly simplified, and the axial virtual position between the rotating shaft and the door handle can be eliminated through the fastening connection function of the bolts, so that the door handle and the rotating shaft are firmly connected, and the use safety of a user is improved.
Further technical scheme can also be that the junction between door handle and the axis of rotation is provided with spline formula cooperation structure. Therefore, through the spline type matching structure, radial slipping between the door handle and the rotating shaft can be reduced or avoided, virtual positions of the door handle and the rotating shaft in the radial direction can be reduced, connection between the door handle and the rotating shaft is more stable, and use safety of a user is further improved.
Drawings
Fig. 1 is a schematic diagram of the structure of the reversing mechanism of the door handle in the front view direction, to which the technical scheme of the invention is applied;
FIG. 2 is a schematic view of the cross-sectional structure in the direction A-A in FIG. 1;
FIG. 3 is an enlarged schematic view of the portion B of FIG. 2;
FIG. 4 is an exploded view of the reversing mechanism of the door handle;
fig. 5 is a schematic perspective view of the rotating shaft 2;
fig. 6 is a schematic perspective view of the commutator segment 5;
fig. 7 is a schematic diagram of the structure of the rotation shaft 2, the commutator segment 5 and the torsion spring 7 in the front view direction after being assembled together;
fig. 8 is a schematic perspective view of the rotating shaft 2, the commutator segments 5 and the torsion spring 7 after being assembled together;
fig. 9 is a schematic structural view of the commutator segment 5.
Detailed Description
The structure of the reversing mechanism of the door handle applying the technical scheme of the invention is further described below with reference to the accompanying drawings.
As shown in fig. 1, 2, 3 and 9, a reversing mechanism of a door handle comprises a support assembly, a rotating shaft 2, a reversing piece 5, a torsion spring 7, a pin 6 and a door handle 1; wherein the support assembly comprises a front end support part 30 for supporting the front shaft end 20a of the rotating shaft and a rear end support part 40 for supporting the rear shaft end 20b of the rotating shaft, the front end support part 30 and the rear end support part 40 are arranged front and back with an accommodating space a therebetween, the rotating shaft 2 is rotatably arranged on the front end support part 30 and the rear end support part 40 through the front shaft end 20a and the rear shaft end 20b thereof, and the rear shaft end 20b of the rotating shaft 2 is connected with the door handle 1; the reversing piece 5 and the torsion spring 7 are arranged in the accommodating space a and are sequentially sleeved on the rotating shaft 2, the torsion spring 7 is provided with a ring spring main body 71 and two free arm ends (72 and 73) extending from the ring spring main body 71, the rotating shaft 2 is provided with a gear 22 supporting the two free arm ends (72 and 73), the reversing piece 5 is provided with extension feet (52 and 52 a), and the extension feet (52 and 52 a) are positioned on the side edge of the gear 22 and enable the gear 22 and the extension feet (52 and 52 a) to be simultaneously positioned in a range clamped by the two free arm ends (72 and 73) of the torsion spring 7; the pin 6 has a columnar shape, the tail end of the pin 6 is combined at an eccentric position on the rear end supporting part 40 but can elastically move in the axial direction, an axial pin hole 31 corresponding to the pin 6 is arranged on the front end supporting part 30, the top end part of the pin 6 can extend into the axial pin hole 31, and the axial pin hole 31 penetrates through the outer surface of the front end supporting part 30 but can press the pin 6 without being ejected from the axial pin hole 31; the commutator segment 5 is also provided with at least two clamping positions which are adapted to the pins 6 and can allow the pins 6 to pass through, the rotation angle between every two adjacent clamping positions is theta, when the pins 6 are in a free state, the pins can extend into at least one clamping position to clamp the commutator segment 5, the top end parts of the pins 6 also extend into the axial pin holes 31, and at the moment, the rotating shaft 2 can rotate relative to the commutator segment 5; when the pin 6 is pushed to be separated from the reversing piece 5, the two free arm ends (72 and 73) of the torsion spring 7 clamp the extending feet (52 and 52 a), the rotating shaft 2 can rotate together with the torsion spring 7 and the reversing piece 5, and when the rotating shaft 2 and the reversing piece 5 rotate theta, the pin 6 is ejected to reset, and the reset pin 6 can extend into at least one other clamping position to clamp the reversing piece 5.
The above-described embodiments will be described in detail with reference to the drawings, mainly taking an example of setting two locking positions (51, 51 a) and setting the rotation angle θ between the locking positions (51, 51 a) to 180 °.
As shown in fig. 4, 5, 7 and 8, the rotating shaft 2 includes a main shaft body 20, a protruding edge 21 protruding radially on the main shaft body 20, the gear 22 is disposed axially and connected to the protruding edge 21, and the gear 22 and the protruding edge 21 are located between a front shaft end 20a and a rear shaft end 20b of the rotating shaft 2. The protruding edge 21 may be a structure integrally formed on the main shaft body 20 or a separate member which is independent of the main shaft body 20 and is sleeved on the main shaft body 20. In addition, the above feature defines the structural feature of the projecting edge 21, which projecting edge 21 is a solid extending in the direction perpendicular to the axis of the main shaft body 20, and the projecting edge 21 has not only an axial thickness but also a radial width. A radial avoidance space 24 is arranged between the gear 22 and the main shaft body 20, and a coil spring main body 71 of the torsion spring 7 is sleeved on the main shaft body 20 and is arranged in the radial avoidance space 24. In this way, the radial escape space 24 serves as an arrangement space for the coil spring body 71 of the torsion spring 7, and the torsion spring 7 can be positioned axially. The torsion spring 7 is stably positioned on the rotating shaft 2 and assembled together with the rotating shaft 2 into an independent module, so that the lockset is convenient to assemble. The two free arm ends (72, 73) of the torsion spring 7 extend beyond the escape space 24 and are clamped in the two-sided position of the gear 22 by elastic force.
As shown in fig. 6, 7 and 8, the commutator segment 5 includes a segment body 50, a segment through hole 53 that is formed in a central region of the segment body 50 and is disposed to avoid the main shaft body 20, and a pair of extending legs (52, 52 a) that extend axially and two locking portions (51, 51 a) that are adapted to the pin 6 and through which the pin 6 can pass are further disposed on the segment body 50. The locking parts (51, 51 a) are groove-shaped positioning grooves provided on the periphery of the segment body 50 of the commutator segment 5. Of course, in other embodiments, the clamping position may also be a hole-shaped positioning hole arranged at the side edge of the reversing sheet 5. Wherein the extending legs (52, 52 a) and the clamping positions (51, 51 a) are respectively arranged at the left side and the right side of the sheet through hole 53. The commutator segment 5 is sleeved on the front shaft end 20a of the main shaft body 20 through a segment through hole 53 and leans against the protruding edge 21. The extension feet (52, 52 a) are located outside the radial relief space 24 and on the side of the gear 22, and the gear 22 and the extension feet (52, 52 a) are located in the region clamped by the two free arm ends (72, 73) of the torsion spring 7. The clamping center angle Q of the two free arm ends (72, 73) of the torsion spring 7 with respect to the rotation center of the rotation shaft 2 is greater than 90 °. In other embodiments, for example, when the gap between the two free arm ends (72, 73) of the torsion spring 7 is comparatively small, for example, less than 45 °, both the gear 22 and the extension leg may each be a projecting component. If the clamping range between the two free arm ends (72, 73) of the torsion spring 7 is comparatively large, for example, greater than 90 °, the gear 22 and the extension leg may be a protruding member or two protruding members separated from each other. For example, the gear 22 includes a first gear and a second gear (not shown) that are separated, and the extending pins include a first extending pin 52 and a second extending pin 52a that are separated, where the first extending pin 52 is located at a side of the first gear 22, and the second extending pin 52a is located at a side of the second gear.
As shown in fig. 3 and 4, the support assembly includes an upper cover 3 and a base 4 arranged front and back, the front end support portion 30 is disposed on the upper cover 3, the rear end support portion 40 is disposed on the base 4, and the upper cover 3 and the base 4 are connected by a screw 6. An accommodating space a is arranged between the upper cover 3 and the base 4, the rotating shaft 2 is rotatably arranged on the upper cover 3 and the base 4 through a front shaft end 20a and a rear shaft end 20b, and the rear shaft end 20b of the rotating shaft 2 is connected with the door handle 1; the reversing sheet 5 and the torsion spring 7 are arranged in the accommodating space a and are sequentially sleeved on the rotating shaft 2. In this way, the mounting stability of the commutator segment 5 and the torsion spring 7 in the axial direction is enhanced by the connection structure between the upper cover 3 and the base 4. In addition, the upper cover 3, the base 4 and the components arranged in the accommodating space a can be assembled into an integrated module with independent structural relation, so that the modular production of door handle products is facilitated, and the production efficiency is improved. The front end support 30 is provided with an axial pin hole 31 corresponding to the pin 6, and the tip end of the pin 6 can extend into the axial pin hole 31, and the axial pin hole 31 penetrates through the outer surface of the front end support 30 but can press the pin 6 without being ejected from the axial pin hole 31. An axial spring hole 41 arranged in the axial direction is also provided at an eccentric position on the rear end support 40, a pin return spring 60 is accommodated in the axial spring hole 41, and the pin 6 can be pressed into the axial spring hole 41 and against the pin return spring 60. In this way, the pin 6 can axially and elastically move under the action of the pin return spring 60, and the pin return spring 60 returns to extend into the locking position (51 or 51 a) to lock the commutator segment 5. In addition, the axial spring hole 41 not only can radially position the pin 6, but also can provide a retreating space for the pin 6 to retreat from the detent (51 or 51 a) of the commutator segment 5. According to the above technical solution, it is found that the front end supporting portion 30 and the rear end supporting portion 40 are used to position the upper and lower ends of the pin 6 in a radial direction, so that when the door handle 1 and the rotating shaft 2 are rotated after reversing, the pin 6 does not incline in a radial direction, and the reversing piece 5 does not deviate. In addition, since the commutator segment 5 is located in the accommodating space a, the front end supporting portion 30 can press the commutator segment 5 in the axial direction, so that the commutator segment 5 is stable during the commutation rotation, and the axial runout or wobble of the commutator segment 5 is reduced.
According to the technical scheme, the working process of the reversing mechanism of the door handle is as follows:
when the pin 6 is in the free state, the pin 6 protrudes into one of the detents, for example detent 51, and the tip end of the pin 6 protrudes into the axial pin bore 31, the tail end of the pin 6 being pressed into the axial spring bore 41 and against the pin return spring 60. At this time, when the commutator segment 5 is caught and cannot rotate, and the rotation shaft 2 is rotated clockwise to rotate with the torsion spring 7, the rotation shaft 2 can rotate relative to the commutator segment 5, the left free end 72 of the torsion spring 7 abuts against the left extending leg 52a and cannot move, and the free end 73 of the right end of the torsion spring 7 is moved away from the right extending leg 52 with the rotation of the rotation shaft 2 by the gear 22, and vice versa. The extension legs (52, 52 a) can be used as a positioning reference for the two free arm ends (72, 73) of the torsion spring 7 and a limit reference for the radial rotation range of the rotation shaft 2. The torsion spring 7 allows the rotation shaft 2 to be reset when the rotation of the rotation shaft 2 is stopped, and also realizes automatic reset (always in a horizontal position) of the door handle.
When the handle reversing operation is carried out on the engineering site, only the pin 6 is needed to be pressed on the outer surface of the front end supporting part 30, when the pin 6 retreats into the axial spring hole 41 and the top end part of the pin is separated from the clamping position 51 of the reversing piece 5, the two free arm ends (72 and 73) of the torsion spring 7 clamp the extending pins (52 and 52 a), the rotating shaft 2 can rotate together with the torsion spring 7 and the reversing piece 5, and when the rotating shaft 2 and the reversing piece 5 rotate 180 degrees, the pin 6 pops out and resets, and the reset pin 6 stretches into the other clamping position 51a to clamp the reversing piece 5. The reversing operation of the door handle 1 is thus completed very simply.
In order to limit the rotational travel of the rotating shaft 2, the rotating shaft 2 further comprises a radially protruding stop projection 23, as shown in fig. 5, 7 and 8, wherein the stop projection 23 is arranged on the gear 22. Thus, when the commutator segment 5 is locked by the pin 6 and cannot rotate, and the rotating shaft 2 rotates relative to the commutator segment 5, the limiting projection 23 can abut against the extending legs (52, 52 a) provided on the commutator segment 5, so that the rotating stroke of the rotating shaft 2 can be limited. The shaft 2 can now only rotate freely in a specific rotational path, but not by 180 ° for reversing.
As shown in fig. 3, bearings (8, 8 a) are respectively provided between the front shaft end 20a of the rotating shaft 2 and the upper cover 3, and between the rear shaft end 20b of the rotating shaft 2 and the base 4, and are connected by the bearings (8, 8 a). The bearings (8, 8 a) are ball bearings or slide bearings. In this way, the bearings (8, 8 a) which are spaced apart from each other in the front-rear direction can provide the front support point and the rear support point for the rotation shaft 2, thereby reducing or avoiding the occurrence of significant rattling (virtual position) when the door handle 1 swings in the front-rear direction with the rotation shaft 2 as a fulcrum. In addition, the arrangement of the bearings (8, 8 a) can reduce the sliding friction force between the rotating shaft 2 and the upper cover 3 and the base 4, so that the rotating shaft 2 rotates more smoothly.
As for the connection structure between the rear shaft end 20b of the rotation shaft 2 and the door handle 1, there may be a structure in which the rotation shaft 2 and the door handle 1 are integrated. Alternatively, as shown in fig. 3 and 4, the door handle 1 is disposed separately from the rotation shaft 2, a screw hole 100 is provided at the shaft end 10 of the door handle 1, an axial through hole 25 is provided at the axial center of the rotation shaft 2, and a bolt 102 is connected to the screw hole 100 of the door handle 1 through the axial through hole 25 of the rotation shaft 2 to detachably connect the door handle 1 with the rotation shaft 2. In this way, the shaft 2, the commutator segment 5 and the torsion spring 7 can be assembled before being installed between the upper cover 3 and the base 4, and the rear shaft end 20b of the shaft 2 extends out of the base 4 to be connected with the door handle 1. Of course, in other embodiments, it is also possible that the shaft end 100 provided on the door handle 1 protrudes into the base 4 and is connected to the rear shaft end 20b of the rotation shaft 2. The split structure greatly simplifies the installation of the rotating shaft 2, the supporting component, the reversing piece 5 and other components, and the axial virtual position between the rotating shaft 2 and the door handle 1 can be eliminated through the fastening connection function of the bolt 102, so that the door handle 1 and the rotating shaft 2 are firmly connected, and the use safety of a user is improved. In addition, a spline-type fitting structure is provided at a connection portion between the shaft end 10 of the door handle 1 and the rotation shaft 2. In this way, through the spline type matching structure, radial slipping between the door handle 1 and the rotating shaft 2 can be reduced or avoided, virtual positions of the door handle 1 and the rotating shaft 2 in the radial direction can be reduced, connection between the door handle 1 and the rotating shaft 2 is more stable, and use safety of a user is further improved. Since the rotation shaft 2 is connected to the door handle 1, the rotation of the door handle 1 can rotate the rotation shaft 2.
The door handle reversing mechanism is further provided with a lock panel 9, and the following technical scheme can be further adopted between the base 4 and the lock panel 9:
the first alternative solution is that the base 4 is integrally formed with the lock panel 9. This simplifies the construction and mounting operation of the lock.
As shown in fig. 3 and 4, the base 4 is disposed separately from the lock panel 9, the base 4 is detachably connected to the inner side of the lock panel 9 by a screw 6, and the lock panel 9 is provided with a panel hole 90 corresponding to the rotation shaft 2. Thus, the lock panel 9 and the base 4 may be made of different materials, for example, the base 4 may be made of a metal material to provide a relatively stable positioning for the rotation shaft 2, and the lock panel 9 may be made of a non-metal material such as plastic or resin for cost saving. In addition, the lock panel 9 may be provided with different colors and textures by a surface treatment process different from that of the base 4. The split structure between the base 4 and the lock panel 9 makes their arrangement in terms of structure and appearance more flexible and diversified.
A decorative cover 91 is further provided on the outer side of the lock panel 9, the decorative cover 91 is detachably connected to the lock panel 9, through holes 910 corresponding to the rotation shaft 2 are provided on the decorative cover 91, and the panel hole 90 on the lock panel 9 and the through holes 910 on the decorative cover 91 are located on the same axis. A spigot positioning structure is arranged between the decorative cover 91 and the lock panel 9, the spigot positioning structure comprises a pit 911 arranged on the decorative cover 91 and an annular protrusion 901 arranged on the lock panel 9, and the annular protrusion 901 is inserted into the pit 911 to realize radial positioning between the two components during positioning. Of course, in other embodiments, the recess 911 and the annular projection 901 may also be interchanged, i.e. the recess 911 is provided on the lock panel 9 and the annular projection 901 is provided on the decorative cover 91. The decorative cover 91 can be provided with a color and a material different from those of the lock panel 9, thereby enriching the lock appearance.
Claims (12)
1. The reversing mechanism of the door handle is characterized by comprising a supporting component, a rotating shaft, a reversing piece, a torsion spring, a pin and the door handle; wherein,
The support assembly comprises a front end support part for supporting the front shaft end of the rotating shaft and a rear end support part for supporting the rear shaft end of the rotating shaft, wherein the front end support part and the rear end support part are arranged front and back and are provided with accommodating spaces therebetween, the rotating shaft is rotatably arranged on the front end support part and the rear end support part through the front shaft end and the rear shaft end of the rotating shaft, and the rear shaft end of the rotating shaft is connected with the door handle;
the reversing sheet and the torsion spring are arranged in the accommodating space and are sequentially sleeved on the rotating shaft, the torsion spring is provided with a ring spring main body and two free arm ends extending from the ring spring main body, the rotating shaft is provided with a gear supporting the two free arm ends, the reversing sheet is provided with an extending pin, and the extending pin is positioned at the side edge of the gear and enables the gear and the extending pin to be simultaneously positioned in the range clamped by the two free arm ends of the torsion spring;
the pin is columnar, the tail end of the pin is combined at an eccentric position on the rear end supporting part and can elastically move in the axial direction, the front end supporting part is provided with an axial pin hole corresponding to the pin, the top end part of the pin can extend into the axial pin hole, and the axial pin hole penetrates through the outer surface of the front end supporting part and can press the pin to be prevented from being ejected from the axial pin hole;
The reversing sheet is also provided with at least two clamping positions which are matched with the pins and can be penetrated by the pins, the rotation angle between every two adjacent clamping positions is theta, when the pins are in a free state, the pins can extend into at least one clamping position to clamp the reversing sheet, the top end parts of the pins also extend into the axial pin holes, and at the moment, the rotating shaft can rotate relative to the reversing sheet; when the pin is propped to be separated from the reversing piece, the two free arm ends of the torsion spring clamp the structure of the extending pin, the rotating shaft can rotate together with the torsion spring and the reversing piece, and when the rotating shaft and the reversing piece rotate theta, the pin pops out to reset, and the reset pin can stretch into at least one other clamping position to clamp the reversing piece.
2. The door handle reversing mechanism according to claim 1, wherein the support assembly includes an upper cover and a base arranged front to back, the front end support portion is provided on the upper cover, the rear end support portion is provided on the base, and the upper cover and the base are connected.
3. The door handle reversing mechanism according to claim 2, further comprising a lock panel, wherein the base is integrally formed with the lock panel.
4. The reversing mechanism of a door handle according to claim 2, further comprising a lock panel, the base being provided separately from the lock panel, the base being detachably connected to an inner side of the lock panel by a screw, the lock panel being provided with a panel hole corresponding to the rotation shaft.
5. The reversing mechanism of a door handle according to claim 1, further comprising a lock panel and a decorative cover that is located outside the lock panel and detachably connected to the lock panel, through holes corresponding to the rotation shaft are provided in the lock panel and the decorative cover, respectively, and the through holes in the lock panel and the through holes in the decorative cover are on the same axis.
6. The reversing mechanism of a door handle according to claim 1, wherein the rotation shaft includes a main shaft body, a protruding edge protruding radially on the main shaft body, the gear is disposed axially and connected to the protruding edge, the gear and the protruding edge are located between a front shaft end and a rear shaft end of the rotation shaft, a radial escape space is provided between the gear and the main shaft body, and a coil spring body of the torsion spring is disposed into the radial escape space.
7. The reversing mechanism of a door handle according to claim 1, wherein the gear includes a first gear and a second gear that are separated, the extension leg includes a first extension leg and a second extension leg that are separated, the first extension leg is located at a side of the first gear, the second extension leg is located at a side of the second gear, and a clamping central angle of two free arm ends of the torsion spring with respect to a rotation center of the rotation shaft is greater than 90 °.
8. The reversing mechanism of a door handle according to claim 1, wherein the rotation shaft further includes a radially protruding limit projection capable of abutting against the extension leg provided on the reversing piece when the rotation shaft rotates relative to the reversing piece, thereby restricting a rotation stroke of the rotation shaft.
9. The reversing mechanism of a door handle according to claim 1, wherein bearings are provided between a front shaft end of the rotating shaft and a front end support portion of the support member, and between a rear shaft end of the rotating shaft and a rear end support portion of the support member, respectively, and are connected by the bearings.
10. The reversing mechanism of a door handle according to claim 1, wherein an axial spring hole arranged in an axial direction is further provided at an eccentric position on the rear end support portion, a pin return spring is accommodated in the axial spring hole, and the pin is capable of being pressed into the axial spring hole and pressed against the pin return spring.
11. The reversing mechanism for a door handle according to any one of claims 1 to 10, wherein the door handle is provided separately from the rotation shaft, a screw hole is provided in the door handle, an axial through hole is provided in an axial center of the rotation shaft, and a bolt is connected to the screw hole of the door handle through the axial through hole of the rotation shaft to detachably connect the door handle with the rotation shaft.
12. The reversing mechanism of a door handle according to claim 11, wherein a connection portion between the door handle and the rotating shaft is provided with a spline-type fitting structure.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2018107801738 | 2018-07-16 | ||
| CN201810780173.8A CN108756465A (en) | 2018-07-16 | 2018-07-16 | The changement of door handle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109826494A CN109826494A (en) | 2019-05-31 |
| CN109826494B true CN109826494B (en) | 2023-10-10 |
Family
ID=63973974
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780173.8A Withdrawn CN108756465A (en) | 2018-07-16 | 2018-07-16 | The changement of door handle |
| CN201910281715.1A Active CN109826494B (en) | 2018-07-16 | 2019-04-09 | Reversing mechanism of door handle |
| CN201920471345.3U Withdrawn - After Issue CN210032911U (en) | 2018-07-16 | 2019-04-09 | Reversing mechanism of door handle |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810780173.8A Withdrawn CN108756465A (en) | 2018-07-16 | 2018-07-16 | The changement of door handle |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920471345.3U Withdrawn - After Issue CN210032911U (en) | 2018-07-16 | 2019-04-09 | Reversing mechanism of door handle |
Country Status (1)
| Country | Link |
|---|---|
| CN (3) | CN108756465A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108756465A (en) * | 2018-07-16 | 2018-11-06 | 曹汉添 | The changement of door handle |
| CN109653606B (en) * | 2019-01-30 | 2023-08-29 | 德施曼机电（中国）有限公司 | handle reversing device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204212535U (en) * | 2014-10-14 | 2015-03-18 | 佛山市汇泰龙五金卫浴制造有限公司 | A kind of handle reversing arrangement |
| CN107675942A (en) * | 2017-11-09 | 2018-02-09 | 曹汉添 | The device of handle commutation can be realized |
| CN210032911U (en) * | 2018-07-16 | 2020-02-07 | 曹汉添 | Reversing mechanism of door handle |
-
2018
- 2018-07-16 CN CN201810780173.8A patent/CN108756465A/en not_active Withdrawn
-
2019
- 2019-04-09 CN CN201910281715.1A patent/CN109826494B/en active Active
- 2019-04-09 CN CN201920471345.3U patent/CN210032911U/en not_active Withdrawn - After Issue
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204212535U (en) * | 2014-10-14 | 2015-03-18 | 佛山市汇泰龙五金卫浴制造有限公司 | A kind of handle reversing arrangement |
| CN107675942A (en) * | 2017-11-09 | 2018-02-09 | 曹汉添 | The device of handle commutation can be realized |
| CN210032911U (en) * | 2018-07-16 | 2020-02-07 | 曹汉添 | Reversing mechanism of door handle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN210032911U (en) | 2020-02-07 |
| CN109826494A (en) | 2019-05-31 |
| CN108756465A (en) | 2018-11-06 |
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Effective date of registration: 20230912 Address after: 528231 Guangdong Yajie Hardware Co., Ltd., Changgang North Road, Changshan changhongling Industrial Park, Nanhai District, Foshan City, Guangdong Province Applicant after: Guangdong Archie Hardware Co.,Ltd. Address before: 528231 Guangdong Yajie Hardware Co., Ltd., Changgang North Road, Changshan changhongling Industrial Park, Nanhai District, Foshan City, Guangdong Province Applicant before: Cao Hantian |
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