CN217269416U

CN217269416U - Knob structure and lock

Info

Publication number: CN217269416U
Application number: CN202221177065.XU
Authority: CN
Inventors: 周存军; 胡伟
Original assignee: Lumi United Technology Co Ltd
Current assignee: Lumi United Technology Co Ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-08-23
Anticipated expiration: 2032-05-16

Abstract

The embodiment of the utility model discloses knob structure and tool to lock relates to tool to lock technical field. The knob structure comprises a mounting piece and a knob which are connected in a rotating mode, wherein the mounting piece is provided with a first plane provided with a first limiting part. The knob has the second plane that faces first plane and set up with first plane interval, is equipped with the spacing portion of second with first spacing portion cooperation on the second plane to can restrict the rotation angle of the relative installed part of knob. Be equipped with the mounting groove that a plurality of rotation axes that encircle the knob distribute on the second plane, be equipped with in the mounting groove can with the elastic component of first plane elasticity butt, can provide elastic support between first plane and second plane through elastic component's setting, when avoiding first plane and second plane direct contact, increase the structural stability between knob and the installed part, avoid producing the feel of pine and caving. The installation of the elastic component only occupies the space of the knob, thereby avoiding the crowding caused by the installation of the elastic component in the space of the middle frame.

Description

Knob structure and lock

Technical Field

The utility model relates to a tool to lock technical field especially relates to a knob structure and tool to lock.

Background

The prior knob structure generally comprises a knob and a mounting part which is rotationally connected with the knob, and in order to reduce the rotation resistance of the knob, clearance fit is generally adopted between the knob and the mounting part along the axial direction of a rotating shaft of the knob. The gap easily causes the knob to deviate from the rotating shaft when the knob is used, so that the knob structure is unstable and the hand feeling of looseness is generated. The prior art generally provides a support structure on one side of the mounting member to improve the structural stability of the knob. However, the above-described support structure easily occupies the space of the rear middle frame on the side of the mounting member, causing congestion in the rear middle frame.

SUMMERY OF THE UTILITY MODEL

Therefore, a knob structure and a lock are needed to be provided, and the problem that the interior of a rear middle frame is crowded due to the fact that the stability of the knob structure is improved is solved.

In order to solve the technical problem, the utility model discloses a technical scheme one is:

a knob structure comprising:

the mounting piece is provided with a through hole, the mounting piece is provided with a first plane, the through hole penetrates through the mounting piece through the first plane, and a first limiting part is arranged on the first plane;

the knob is rotatably connected with the mounting piece through the through hole and provided with a second plane, the second plane faces the first plane and is arranged at intervals with the first plane, the second plane is provided with a second limiting part and a plurality of mounting grooves, the first limiting part is matched with the second limiting part to limit the rotation angle of the knob relative to the mounting piece, and the mounting grooves are distributed around the rotation shaft of the knob;

the elastic component is arranged in the mounting groove, elastically abuts against the first plane and can slide relative to the first plane along with the rotation of the knob; and

the transmission part is connected with the knob.

In some embodiments of the knob structure, a groove is disposed on the first plane, and the elastic component can move to the groove relative to the first plane and is partially accommodated in the groove.

In some embodiments of the knob structure, the elastic member includes an elastic member and an abutting member, the elastic member is received in the mounting groove, the abutting member is partially received in the mounting groove and connected to the elastic member, the abutting member has a spherical surface portion exposed outside the mounting groove and capable of abutting against the first plane, and the groove is matched with the spherical surface portion.

In some embodiments of the knob structure, one of the first limiting portion and the second limiting portion is a protrusion structure, and the other one is an arc-shaped groove, and the protrusion structure is at least partially received in the arc-shaped groove.

In some embodiments of the knob structure, a boss is disposed on the knob, the boss abuts against the first plane, the knob structure further includes a connecting member, the connecting member is connected to the knob, the connecting member abuts against a side of the mounting member departing from the first plane, and the knob is connected to the transmission member through the connecting member.

In some embodiments of the knob structure, a wear member is disposed between the connecting member and the mounting member.

In some embodiments of the knob structure, the boss is provided with a rotating portion, the rotating portion is arranged in the through hole in a penetrating manner, the connecting piece is provided with a first insertion groove, and the rotating portion is inserted into the first insertion groove and is connected with the connecting piece in a rotation stopping manner;

and a second inserting groove is formed in one side, which deviates from the first inserting groove, of the connecting piece, and the transmission piece is inserted into the second inserting groove and is connected with the connecting piece in a rotation stopping manner.

In some embodiments of the knob structure, an elastic pin is disposed on the transmission member, and an extending direction of the elastic pin is perpendicular to an axial direction of the transmission member; the connecting piece is provided with a limiting hole, the limiting hole is communicated with the second insertion groove, and in the process that the transmission piece is inserted into the second insertion groove, the elastic pin can be compressed and can be reset and contained in the limiting hole when facing the limiting hole.

In some embodiments of the knob structure, the limiting hole is exposed from the connecting member.

In some embodiments of the knob structure, the knob structure further includes a locking member, the locking member is detachably connected to the connecting member and the rotating portion, respectively, and the locking member is configured to lock the connecting member and the rotating portion.

In order to solve the technical problem, the utility model discloses a technical scheme two be:

a lockset, comprising:

a rear middle frame; and

in the knob structure, the mounting part is arranged on the rear middle frame.

Implement the embodiment of the utility model provides a, will have following beneficial effect:

the knob structure application of above-mentioned scheme is equipped in the tool to lock, except possessing splendid driving medium drive efficiency, and it can also avoid bearing structure to occupy back center space when promoting self stable in structure. Specifically, the knob structure comprises a mounting piece and a knob which are connected in a rotating mode, wherein the mounting piece is provided with a first plane provided with a first limiting portion. The knob has the second plane that faces first plane and set up with first plane interval, is equipped with the spacing portion of second with first spacing portion cooperation on the second plane to can restrict the rotation angle of the relative installed part of knob. Further, be equipped with the mounting groove that a plurality of rotation axes that encircle the knob distribute on the second plane, be equipped with in the mounting groove can with the elastic component of first plane elasticity butt, so setting up through elastic component can provide elastic support between first plane and second plane, when avoiding first plane and second plane direct contact, increase the structural stability between knob and the installed part, avoid producing the feel of pine and caving. Meanwhile, the elastic assembly only occupies the space of the knob, and therefore crowding caused by installation of the elastic assembly in the space of the middle frame is avoided.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Wherein:

FIG. 1 is a schematic diagram of a partial explosion of an embodiment of a latch;

FIG. 2 is an enlarged view of part A of FIG. 1;

FIG. 3 is a cross-sectional view of the lock in the position of the knob structure in one embodiment;

FIG. 4 is an axial view of a knob of the lock of one embodiment;

FIG. 5 is an axial view of a connector in the lock according to one embodiment.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined or explained in subsequent figures.

In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the products of the present invention are used, the description is only for convenience of description and simplification, but the indication or suggestion that the indicated device or element must have a specific position, be constructed and operated in a specific orientation, and thus, should not be interpreted as a limitation of the present invention.

Furthermore, the appearances of the terms "first," "second," and the like, if any, are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.

In order to solve the technical problem the utility model provides a knob structure and tool to lock. The lockset can be used as a door lock to be applied to various indoor doors or outdoor doors. The lockset comprises a rear middle frame, a lock tongue and a knob structure. The back center is used for being installed in the door, and the knob structure is connected in back center and spring bolt. The knob structure can drive the bolt to move under the action of external force, so that the bolt protrudes or contracts into the rear middle frame relative to the rear middle frame, and the door is locked, unlocked or reversely locked, or the bolt is driven to rotate relative to the rear middle frame to lock, unlock or reversely lock the door.

Further, as shown in fig. 1 and 3, the knob structure includes a mounting member 10, a knob 20, an elastic member 30, and a transmission member 40. The transmission member 40 is connected to the knob 20. The mounting member 10 is provided to the rear middle frame 50. The transmission member 40 is drivingly connected to the latch bolt. In this embodiment, the transmission member 40 is a shaft structure. It will be appreciated that in other embodiments the transmission member 40 may also be of a plate-like construction to enable a dial transmission. The transmission member 40 may also be a bent structure to reduce the transmission distance. The transmission member 40 may have other structures to perform different transmission functions.

Further, with continued reference to fig. 1 and 3, mounting member 10 is provided with a through-hole 100. The mounting 10 has a first plane 11. The mounting member 10 is penetrated by the first plane 11 through the through hole 100. The first plane 11 is provided with a first position-limiting portion 200. Knob 20 is rotatably coupled to mounting member 10 through-hole 100. The knob 20 has a second flat surface 21. The second plane 21 faces the first plane 11 and is spaced apart from the first plane 11. Referring to fig. 1, 3 and 4, the second plane 21 is provided with a second limiting portion 22 and a plurality of mounting grooves 300. The first position-limiting portion 200 cooperates with the second position-limiting portion 22 to limit the rotation angle of the knob 20 relative to the mounting member 10. The mounting grooves 300 are distributed around the rotational axis of the knob 20. The elastic component 30 is disposed in the mounting groove 300, the elastic component 30 elastically abuts against the first plane 11 and can slide relative to the first plane 11 along with the rotation of the knob 20, so as to ensure that the elastic component 30 can always elastically abut against the first plane 11 during the rotation of the knob 20, and ensure that each elastic component 30 provides support stability between the first plane 11 and the second plane 21.

To sum up, implement the embodiment of the utility model provides a, will have following beneficial effect: the knob structure application of above-mentioned scheme is equipped in the tool to lock, except possessing splendid driving medium 40 drive efficiency, it can also avoid bearing structure to occupy back center 50 spaces when promoting self stable in structure. Specifically, the knob structure includes a mounting member 10 and a knob 20 which are rotatably connected, and the mounting member 10 has a first plane 11 provided with a first stopper 200. The knob 20 has a second plane 21 facing the first plane 11 and spaced apart from the first plane 11, and a second position-limiting portion 22 engaged with the first position-limiting portion 200 is provided on the second plane 21 to limit a rotation angle of the knob 20 relative to the mounting member 10. Furthermore, the second plane 21 is provided with a plurality of mounting grooves 300 distributed around the rotation axis of the knob 20, and the mounting grooves 300 are internally provided with the elastic component 30 capable of elastically abutting against the first plane 11, so that the elastic component 30 can provide elastic support between the first plane 11 and the second plane 21, and the structural stability between the knob 20 and the mounting part 10 is improved and the hand feeling of looseness is avoided while the direct contact between the first plane 11 and the second plane 21 is avoided. Meanwhile, the installation of the elastic assembly 30 only occupies the space of the knob 20, thereby avoiding the congestion caused by the installation of the elastic assembly 30 in the space of the rear middle frame 50.

In one embodiment, as shown in fig. 1 and 3, the first plane 11 is provided with a groove 400. The elastic element 30 can move to the groove 400 relative to the first plane 11 and is partially accommodated in the groove 400. Thus, by the arrangement of the groove 400, position feedback can be generated when the elastic component 30 is partially accommodated in the groove 400, and the in-place feeling of the knob 20 is improved, so that whether the knob 20 is rotated in place or not can be fed back to a user. In this embodiment, the number of the grooves 400 corresponding to one elastic member 30 is plural, so that a plurality of position feedbacks can be generated during the rotation of the knob 20 to feed back whether the knob 20 is rotated in place and whether the functions (locking, unlocking or back-locking) are implemented. Further, in the present embodiment, the elastic element 30 only needs to be accommodated in the groove 400 by a small amount, so that the groove 400 can be set to a shallow size, and the elastic element 30 can abut against the bottom of the groove 400. Alternatively, in some embodiments, the structure forming the notch with the first plane 11 may be used to abut the elastic component 30 by designing the notch of the groove 400 to be smaller in size. The formation of the groove 400 does not occupy the internal structure of the rear middle frame 50, thereby avoiding the internal congestion of the rear middle frame 50. Meanwhile, the elastic component 30 can be conveniently moved in or out of the groove 400, and in the moving-in process, the elastic component 30 can be partially accommodated in the groove 400 only by releasing a small amount of elastic potential energy, so that sufficient supporting force is ensured to be reserved between the first plane 11 and the second plane 21.

In one embodiment, please refer to fig. 1 and 3 together, the elastic component 30 includes an elastic member 31 and an abutting member 32. The elastic member 31 is accommodated in the mounting groove 300. In this embodiment, the elastic member 31 is a spring. It is understood that in other embodiments, the elastic member 31 may also be a spring or an elastic structure made of elastic material such as rubber or plastic. Further, the abutting piece 32 is partially received in the mounting groove 300 and connected to the elastic piece 31. This allows the abutment member 32 to be restricted by the knob 20, so as to ensure the directionality of the elastic member 31 driving the abutment member 32, and ensure the stability of the elastic abutment member 32 abutting against the first plane 11. Further, the contact member 32 has a spherical surface portion exposed outside the mounting groove 300 and capable of contacting the first plane 11. The spherical part is arranged to reduce the connection area with the first plane 11 while ensuring the supporting effect, so that the knob 20 can smoothly rotate relative to the mounting part 10. The groove 400 is matched with the spherical portion. In this embodiment, the abutting member 32 is a sphere structure. The spherical portion is the spherical surface of the abutment 32.

In one embodiment, referring to fig. 1 and 3, one of the first position-limiting portion 200 and the second position-limiting portion 22 is a protrusion structure, and the other is an arc-shaped groove, and the protrusion structure is at least partially received in the arc-shaped groove. The rotation angle of the knob 20 relative to the mounting member 10 can be limited by the engagement of the protrusion structure with the arc-shaped groove. In this embodiment, the first position-limiting portion 200 is an arc-shaped groove. The second position-limiting portion 22 is a protrusion. It is understood that in other embodiments, the first position-limiting portion 200 is a protrusion structure. The second position-limiting portion 22 is an arc-shaped groove. Further, in this embodiment, the protrusion structure has a cylindrical surface. The starting position and the ending position of the arc-shaped groove are both provided with arc surfaces to be matched with the cylindrical surfaces, so that the impact of the convex structures on the mounting part 10 is reduced, and the service life is prolonged.

In one embodiment, referring to fig. 3 and 4, knob 20 is provided with a boss 23. The boss 23 abuts on the first plane 11. This allows the second flat surface 21 to be spaced apart from and opposite the first flat surface 11, avoiding contact between the first flat surface 11 and the second flat surface 21, which could cause wear when the knob 20 is rotated relative to the mounting member 10. Referring to fig. 1 to 4, the knob structure further includes a connecting member 60. The connecting member 60 is connected to the knob 20 and abuts against a side of the mounting member 10 away from the first plane 11. The arrangement of the boss 23 and the connecting member 60 can prevent the knob 20 from moving relative to the mounting member 10 along the axial direction of the rotating shaft, and ensure the stable axial position between the knob 20 and the mounting member 10. Further, the knob 20 is connected to the transmission member 40 through the connection member 60 to improve the connection stability between the knob 20 and the transmission member 40. In some embodiments, the knob structure may not include the connecting member 60, and in order to limit the axial position between the knob 20 and the mounting member 10, a limiting structure capable of abutting on a side of the mounting member 10 away from the first plane 11 may be provided on the knob 20, so that the limiting structure can cooperate with the boss 23 to limit the axial position of the knob 20 relative to the mounting member 10. Further, the area of the abutting position of the boss 23 and the first plane 11 is relatively small, so as to reduce the degree of abrasion between the boss 23 and the first plane 11 when the knob 20 is rotated.

In one embodiment, referring to fig. 1 to 3, a wear-resistant member 70 is disposed between the connecting member 60 and the mounting member 10. The wear of the connecting piece 60 on the mounting piece 10 can be reduced by the arrangement of the wear-resistant pieces 70, and the service life is prolonged. Further, the connecting member 60 can always drive the wear-resistant member 70 to be attached to the mounting member 10 through the elastic supporting function of the elastic assembly 30, and the axial position between the knob 20 and the mounting member 10 is further ensured to be stable. In this embodiment, the wear-resistant member 70 is made of nylon. It is understood that in other embodiments, the wear member 70 may be made of plastic or resin.

In one embodiment, referring to fig. 3 and 4, the boss 23 is provided with a rotation portion 24. The rotating part 24 is inserted into the through hole 100 to be rotatably connected to the mounting part 10. The knob 20 is thus enabled to rotate relative to the mounting member 10 by the provision of the rotation portion 24. The connecting member 60 is provided with a first insertion groove 500, and the rotating portion 24 is inserted into the first insertion groove 500 to be rotatably coupled to the connecting member 60, so that the rotational driving force of the knob 20 can be stably transmitted to the connecting member 60. Meanwhile, the connection area between the rotating portion 24 and the connecting member 60 can be increased by the insertion fit between the rotating portion 24 and the connecting member 60, and the connection stability between the rotating portion 24 and the connecting member 60 is further improved. In this embodiment, the rotating portion 24 is circumferentially provided with a plurality of rotation stopping surfaces 241, and the connecting member 60 forms at least a portion of the groove wall of the first inserting groove 500 to be attached to the rotation stopping surfaces 241 to form rotation stopping connection. Further, as shown in fig. 2, the notch of the first insertion groove 500 is chamfered to facilitate insertion of the rotation part 24.

In an embodiment, please refer to fig. 2, fig. 3 and fig. 5 together, a second insertion groove 600 is disposed on a side of the connecting member 60 away from the first insertion groove 500, and the transmission member 40 is inserted into the second insertion groove 600 to be connected with the connecting member 60 in a rotation-stopping manner. This allows the rotational driving force of the knob 20 to be stably transmitted to the transmission member 40 through the connection member 60. Meanwhile, the connection area between the transmission member 40 and the connection member 60 can be increased by the insertion fit between the transmission member 40 and the connection member 60, and the connection stability between the transmission member 40 and the connection member 60 is further increased. In this embodiment, the transmission member 40 is a square shaft structure, and the corresponding second inserting groove 600 is a square groove. It is understood that in other embodiments, the transmission member 40 may also have other shaft structures with non-circular cross-sections, and the second insertion groove 600 is matched with the above cross-sections to realize the rotation-stopping connection. Further, as shown in fig. 5, the notch of the second insertion groove 600 is chamfered to facilitate the insertion of the transmission member 40.

In one embodiment, referring to fig. 2 and 5, the driving member 40 is provided with an elastic pin 41, and the extending direction of the elastic pin 41 is perpendicular to the axial direction of the driving member 40. The connecting member 60 is provided with a limiting hole 700. The limiting hole 700 is communicated with the second inserting groove 600. In the process that the transmission member 40 is inserted into the second inserting groove 600, the elastic pin 41 can be compressed, and can be reset and contained in the limiting hole 700 when facing the limiting hole 700, so as to realize axial limiting between the transmission member 40 and the connecting member 60. Further, the matching relationship between the elastic pin 41 and the limiting hole 700 can be realized only when the transmission member 40 moves to the right position relative to the connection member 60, so that the arrangement of the elastic pin 41 and the limiting hole 700 can also give feedback on whether the transmission member 40 moves to the right position relative to the connection member 60.

In one embodiment, with continued reference to fig. 2 and 5, the position-limiting hole 700 is exposed at the connecting member 60. This allows the elastic pin 41 to be compressed from the outside of the link 60, and the elastic pin 41 is removed from the stopper hole 700. The driving member 40 can be separated from the connecting member 60 by driving the driving member 40, so that the driving member 40 and the connecting member 60 can be detachably connected.

In one embodiment, the knob structure further includes a retaining member 80. The locking member 80 is detachably coupled to the connecting member 60 and the rotating part 24, respectively, and the locking member 80 is used to lock the connecting member 60 and the rotating part 24. The stability of the connection member 60 to the rotary unit 24 can be further improved by the arrangement of the locking member 80 as such, while the detachable connection of the connection member 60 to the rotary unit 24 is realized. In some embodiments, the outer wall of connector 60 can be provided with openings to facilitate passage of retaining member 80 therethrough, such that retaining member 80 retains connector 60 with rotatable portion 24.

In this embodiment, as shown in fig. 2 and 3, the first insertion groove 500 and the second insertion groove 600 can form a partition wall 61 between the first insertion groove 500 and the second insertion groove 600 on the connection member 60. The partition wall 61 is provided with a counter bore 800 communicating the first insertion groove 500 and the second insertion groove 600. Retaining member 80 is received in counter bore 800 and is removably coupled to rotatable portion 24. Thus, the locking member 80 can be accommodated in the connecting member 60 by the above arrangement, so that the locking member 80 is prevented from interfering with the operation of other structures, and the connecting member 60 and the rotating part 24 are prevented from being loosened by touching the locking member 80 during use. Further, the retaining member 80 can be received in the counterbore 800 such that the retaining member 80 is positioned so as not to interfere with the connection between the driving member 40 and the connecting member 60. Further, in this embodiment, the locking member 80 is provided with threads. As shown in fig. 4, the rotary part 24 is provided with a screw hole 900 to be engaged with the locker 80. Since the connecting member 60 can abut against the side of the mounting member 10 facing away from the first plane 11, the axial positioning between the knob 20 and the mounting member 10 can be achieved by screwing the locking member 80 into the threaded hole 900.

The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the scope of the invention, which is defined by the appended claims.

Claims

1. Knob structure, its characterized in that includes:

the transmission part is connected with the knob.

2. The knob structure according to claim 1, wherein a recess is formed in the first plane, and the elastic member is capable of moving relative to the first plane to the recess and is partially received in the recess.

3. The knob structure according to claim 2, wherein the elastic member includes an elastic member and an abutting member, the elastic member is received in the mounting groove, the abutting member is partially received in the mounting groove and connected to the elastic member, the abutting member has a spherical surface portion exposed outside the mounting groove and capable of abutting against the first plane, and the recess is matched with the spherical surface portion.

4. The knob structure according to claim 1, wherein one of the first and second position-limiting portions is a protrusion structure, and the other one of the first and second position-limiting portions is an arc-shaped groove, and the protrusion structure is at least partially received in the arc-shaped groove.

5. The knob structure according to any one of claims 1 to 4, wherein a boss is provided on the knob, the boss abuts against the first plane, the knob structure further comprises a connecting member, the connecting member is connected to the knob, the connecting member abuts against a side of the mounting member away from the first plane, and the knob is connected to the transmission member through the connecting member.

6. The knob structure according to claim 5, wherein a wear member is provided between the connecting member and the mounting member.

7. The knob structure according to claim 5, wherein the boss is provided with a rotation portion, the rotation portion is inserted into the through hole, the connecting member is provided with a first insertion groove, and the rotation portion is inserted into the first insertion groove to be connected with the connecting member in a rotation-stopping manner;

8. The knob structure according to claim 7, wherein an elastic pin is provided on the transmission member, and the extending direction of the elastic pin is perpendicular to the axial direction of the transmission member; the connecting piece is provided with a limiting hole, the limiting hole is communicated with the second inserting groove, and in the process that the transmission piece is inserted into the second inserting groove, the elastic pin can be compressed and can be reset and contained in the limiting hole when facing the limiting hole.

9. The knob structure according to claim 8, wherein the limiting hole is exposed from the connecting member.

10. The knob structure according to claim 7, further comprising a locking member detachably coupled to the connecting member and the rotating portion, respectively, the locking member being adapted to lock the connecting member and the rotating portion.

11. A lock, comprising:

a rear middle frame; and

the knob structure according to any one of claims 1 to 10, wherein the mounting member is provided to the rear center frame.