CN219471763U - Door fitting and pull-cord door lock - Google Patents

Abstract

The utility model discloses a door fitting and a pull-cord type door lock. The door fitting includes: a base; slider-crank mechanism, slider-crank mechanism includes: the crank piece is rotationally arranged on the seat body; the sliding block piece is arranged on the seat body in a sliding way; one end of the connecting rod piece is hinged to one end of the crank piece far away from the rotation center, and the other end of the connecting rod piece is hinged to the sliding block piece; the connecting rod piece is driven by the crank piece, the linkage sliding block piece slides between an unlocking position and a locking position, and the sliding block piece is used for driving the transmission rope. The crank piece can be rotated to be converted into linear motion of the sliding block piece, so that force for pulling the driving rope is provided in the vertical direction, and a user can rotate the crank piece to drive the driving rope. The pull rope type door lock comprises a transmission rope, a lock body and a door accessory as described above.

Description

Door fitting and pull-cord door lock

Technical Field

The utility model relates to the technical field of door and window hardware accessories, in particular to a door accessory and a pull rope type door lock.

Background

Door locks, as the name implies, are devices used to lock a door to prevent others from unlocking the door, and are classified into a number of types, and the door locks are required differently in various applications.

The door lock generally comprises a door fitting, a driving member and a lock body, wherein the door fitting is used for being operated by a user, the driving member moves when the door fitting is applied with force, the driving member is connected with the lock body in a transmission manner, and the lock body can move between a locking state and an unlocking state under the action of the driving member.

There are some pull rope type door locks, which are arranged on the upper side or the lower side of a door leaf, so that the effect of moving a lock tongue of the lock body out of the sight of a user is achieved, and because the distance between a door fitting and the lock body is large, a driving piece needs to be provided with a flexible driving rope, the door fitting and the lock body are connected through the driving rope, the user can provide a force for pulling the driving rope in the vertical direction when applying force to the door fitting, the driving rope can be pulled to drive the lock body to move, however, the existing door fitting for pulling the driving rope usually needs to be driven by a user in a straight line, and is laborious and inconvenient to operate.

Disclosure of Invention

In order to overcome at least one defect in the prior art, the utility model provides a door fitting, which aims to solve the problem that the existing door fitting for pulling a transmission rope needs to be driven by a user in a straight line, and is more labor-saving and convenient to operate; the utility model also provides a pull-cord door lock, which comprises the door accessory.

The utility model adopts the technical proposal for solving the problems that:

a door fitting, comprising: a base; slider-crank mechanism, slider-crank mechanism includes: the crank piece is rotationally arranged on the seat body; the sliding block piece is arranged on the seat body in a sliding way; one end of the connecting rod piece is hinged to one end, far away from the rotation center, of the crank piece, and the other end of the connecting rod piece is hinged to the sliding block piece; the door fitting further comprises a door switch for driving the crank member to rotate; the connecting rod piece is driven by the crank piece to link the sliding block piece to slide between an unlocking position and a locking position, and the sliding block piece is used for driving the transmission rope.

According to the door accessory, the crank piece, the connecting rod piece and the sliding block piece form the crank sliding block mechanism, namely, rotation of the crank piece can be converted into linear motion of the sliding block piece, so that a force for pulling the transmission rope is provided in the vertical direction, a user can drive the transmission rope by rotating the crank piece, and compared with a linear driving operation mode, the rotary driving operation mode is more labor-saving and more convenient.

According to some embodiments of the utility model, when the slider member is in the locked position, the two hinge points of the link member are collinear with the center of rotation of the crank member.

By adopting the scheme, when the sliding block piece is in the locking position, the driving rope can drive the lock body to be in the locking state, and when the two hinging points of the connecting rod piece are collinear with the rotation center of the crank piece, if the sliding block piece is used as a driving piece and the crank piece is used as a driven piece, the crank sliding block mechanism can generate dead points, the crank sliding block mechanism is necessarily in a self-locking state, the self-locking function is realized, and only when the crank piece is used as the driving piece, the crank sliding block mechanism can move, namely, only the operation mode of rotating the door switch can drive the sliding block piece so as to drive the driving rope; therefore, on one hand, the reaction force of the driving rope on the sliding block piece can not drive the sliding block piece to move, namely the crank sliding block mechanism can not move due to the reaction force of the driving rope, so that the automatic limit of the sliding block piece is realized, other unnecessary structures for limiting are reduced, the function is easy to realize, the structure is simple, and the production cost is low; on the other hand, the locking position of the sliding block piece is the limit position of the sliding stroke of the sliding block piece, and the movement of the sliding block piece when moving to the locking position is more moderate by utilizing the characteristic that the speed of the sliding block piece of the crank sliding block mechanism naturally and slowly decreases when approaching to the limit position of the sliding stroke.

According to some embodiments of the utility model, when the slider member is in the unlocked position, the two hinge points of the link member are collinear with the center of rotation of the crank member.

By adopting the scheme, the driving rope can drive the lock body to be in an unlocking state when the sliding block piece is in an unlocking position, and importantly, the automatic limit of the sliding block piece at the unlocking position is realized by utilizing the dead point of the crank sliding block mechanism.

According to some embodiments of the utility model, the first extension body is used for connecting with one driving rope, and the first extension body is connected with the first end of the sliding block piece and slides along the sliding block piece in the same direction.

Through adopting above-mentioned scheme, utilize the assembly position of first extension body adjustment driving rope to adapt to different service environment, and make the structure arrange more reasonable.

According to some embodiments of the utility model, the drive rope further comprises a second extension body and a gear, wherein the second extension body is used for connecting another drive rope, the second extension body and the second end of the sliding block piece are oppositely meshed with the gear, and the second extension body and the sliding block piece slide reversely.

Through adopting above-mentioned scheme, utilize the second extension body to adjust the assembly position of driving rope to through the second extension body and the relative meshing of the second end of slider spare in the gear in order to realize that the second extension body is with slider spare reverse slip, in order to adapt to different user demands.

According to some embodiments of the utility model, the link member is curved.

Through adopting above-mentioned scheme, can play the effect of dodging other structures inside the door accessory, the assembly of being convenient for.

According to some embodiments of the utility model, the slider member is provided with a guiding strip hole, the seat body is provided with a guiding rib matched with the guiding strip hole, and the guiding strip hole is in sliding fit with the guiding rib.

By adopting the scheme, the guide is provided for the sliding of the sliding block piece.

According to some embodiments of the utility model, the crank member is rotatable about a pivot axis.

Through adopting above-mentioned scheme, user accessible rotation door switch is in order to drive crank rotation, simple structure, and function realization is easy.

According to some embodiments of the utility model, the door switch is a door handle, the door handle being rotatable between a first position and a second position; when the door handle rotates to the first position, under the action of the crank piece, the connecting rod piece drives the sliding block piece to move to the unlocking position; when the door handle rotates to the second position, under the action of the crank piece, the connecting rod piece drives the sliding block piece to move to the locking position; the door fitting further comprises a first magnet and/or a second magnet arranged on the base; the first magnet is used for magnetically attracting the door handle at the first position; the second magnet is used for magnetically attracting the door handle at the second position.

By adopting the scheme, the stability of the door handle at the first position and/or the second position is kept, and the door handle is prevented from shaking.

In addition, the utility model also provides a pull rope type door lock, which comprises a driving rope and a lock body, and further comprises the door accessory, wherein the sliding block piece slides between the unlocking position and the locking position to drive the driving rope, the driving rope is connected with the lock body in a driving way, and the lock body can move between an unlocking state and a locking state under the driving of the driving rope.

Drawings

FIG. 1 is a schematic view of a front view of a door fitting according to an embodiment of the present utility model with a slider member in an unlocked position;

FIG. 2 is a schematic view of the back structure of FIG. 1;

FIG. 3 is a schematic view of the front structure of a door fitting according to an embodiment of the present utility model with a slider member between an unlocked position and a locked position;

FIG. 4 is a schematic view of the back structure of FIG. 3;

FIG. 5 is a schematic view of the front structure of the door fitting of the embodiment of the present utility model with the slider member in the closed position;

FIG. 6 is a schematic view of the back structure of FIG. 5;

fig. 7 is a schematic structural diagram of a pull-cord door lock according to an embodiment of the present utility model.

Wherein the reference numerals have the following meanings:

10-seat, 101-guide rib, 11-crank slider mechanism, 111-crank spare, 112-slider spare, 1121-first end, 1122-second end, 1123-second tooth, 1124-guide rectangular hole, 113-link piece, 12-door switch, 13-first extension, 14-second extension, 141-first tooth, 15-gear, 16-first magnet, 17-second magnet, 18-third magnet, 19-driving rope, 20-lock body.

Detailed Description

For a better understanding and implementation, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model.

In the description of the present utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used herein in the description of the utility model is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model.

Referring to fig. 1 to 7, the present utility model discloses a door fitting, comprising: a base 10; slider-crank mechanism 11, slider-crank mechanism 11 includes: a crank member 111 rotatably provided to the housing 10; the sliding block piece 112 is arranged on the base body 10 in a sliding way; a link member 113, one end of the link member 113 being hinged to one end of the crank member 111 away from the rotation center, and the other end of the link member 113 being hinged to the slider member 112; wherein, link member 113 is driven by crank member 111, and the slider member 112 slides between the unlocking position and the locking position, and slider member 112 is used for driving rope 19.

It should be noted that, when the slider member 112 is at the unlocking position, the driving rope 19 drives the lock body 20 to be in the unlocking state; when the slider member 112 is in the closed position, the driving rope 19 drives the lock body 20 to be in the closed state.

In this way, the crank member 111, the link member 113 and the slider member 112 form the crank slider mechanism 11, that is, the rotation of the crank member 111 can be converted into the linear motion of the slider member 112, so as to provide a force for pulling the driving rope 19 in the vertical direction, and the user can rotate the crank member 111 to realize the driving of the driving rope 19.

Specifically, in the present embodiment, the door switch 12 is further included, the door switch 12 is used for driving the crank member 111 to rotate, and the user can rotate the door switch 12 to drive the crank member 111 to rotate, so that the structure is simple, and the function implementation is easy. More specifically, the door switch 12 may be, but is not limited to being, a door handle or door knob, etc., without limitation.

Specifically, the link member 113 is hinged to the crank member 111 through one hinge point, and the link member 113 is hinged to the slider member 112 through another hinge point.

Further, as shown in fig. 6, in this embodiment, when the slider member 112 is in the locking position, two hinge points of the link member 113 are collinear with the rotation center of the crank member 111, if the slider member 112 is used as a driving member, the crank member 111 is used as a driven member, the crank slider mechanism 11 will have a "dead point", the crank slider mechanism 11 is necessarily in a self-locking state, so as to realize a self-locking function, and only when the crank member 111 is used as the driving member, the crank slider mechanism 11 can move, that is, only the operation mode of the rotary door switch 12 can drive the slider member 112 to drive the driving rope 19, which is a physical property well known to those skilled in the art, and will not be repeated here; therefore, on one hand, the reaction force of the driving rope 19 on the sliding block piece 112 cannot drive the sliding block piece 112 to move, namely the crank sliding block mechanism 11 cannot move due to the reaction force of the driving rope 19, so that the automatic limiting of the sliding block piece 112 is realized, other unnecessary structures for limiting are reduced, the function is easy to realize, the structure is simple, and the production cost is low; on the other hand, the lock position of the slider 112 is the limit position of the sliding stroke of the slider 112, and the movement of the slider 112 to the lock position is made more gentle by the characteristic that the speed of the slider 112 of the crank mechanism 11 naturally decreases gradually when approaching the limit position of the sliding stroke.

Similarly, in the present embodiment, as shown in fig. 2, when the slider member 112 is in the unlocking position, the two hinge points of the link member 113 are collinear with the rotation center of the crank member 111, and thus, the automatic limitation of the slider member 112 in the unlocking position is achieved by the "dead point" of the crank slider mechanism 11. It will be appreciated that in this embodiment, two "dead points" of the crank slider mechanism are utilized to achieve automatic limiting of the slider member 112 in the unlocked position and automatic limiting in the locked position, so that the crank member 111 needs to be rotated 180 degrees when the slider member 112 slides from the unlocked position to the locked position.

It should be noted that, in some other embodiments, the slider member 112 may be limited by other limiting structures, and only one dead point of the crank slider mechanism 11 is utilized or the dead point of the crank slider mechanism 11 is not needed, so that when the slider member 112 slides from the unlocking position to the locking position, the crank member 111 may rotate 90 degrees, 120 degrees, 135 degrees, and the like, which is not limited herein.

As shown in fig. 2, 4 and 6, in particular, in this embodiment, the device further includes a first extension body 13, where the first extension body 13 is used to connect a driving rope 19, and the first extension body 13 is connected to the first end 1121 of the slider member 112 and slides in the same direction along with the slider member 112, so that the assembly position of the driving rope 19 is adjusted by using the first extension body 13 to adapt to different use environments, and the structural arrangement is more reasonable.

Further, in this embodiment, the second extending body 14 and the gear 15 are further included, the second extending body 14 is used to connect with another driving rope 19, the second extending body 14 and the second end 1122 of the slider member 112 are relatively meshed with the gear 15, and the second extending body 14 and the slider member 112 slide reversely. Specifically, the second elongated body 14 is provided with first teeth 141 for engagement with the gear 15, and the second end 1122 of the slider member 112 is provided with second teeth 1123 for engagement with the gear 15.

In this way, the second extension body 14 is utilized to adjust the assembly position of the driving rope 19, and the second extension body 14 and the slider member 112 can slide reversely, so as to adapt to different use requirements.

In the present embodiment, the sliding direction of the second extension body 14 is opposite to that of the first extension body 13, so that the driving rope 19 in both directions can be pulled simultaneously, specifically, the second extension body 14 and the first extension body 13 are away from each other when the slider member 112 slides toward the unlocking position; the second extension body 14 and the first extension body 13 approach each other when the slider member 112 slides toward the lock-off position; it should be noted that, in some other embodiments, the first extension body 13 and the second extension body 14 may be selected alternatively, which is not limited herein, according to actual use requirements.

As shown in fig. 2 and 4, in the present embodiment, the link member 113 is preferably curved, so that it can have an effect of avoiding other structures inside the door fitting, and is convenient for assembly.

Preferably, in this embodiment, the sliding block 112 is provided with a guiding strip hole 1124, the seat 10 is provided with a guiding rib 101 matching with the guiding strip hole 1124, and the guiding strip hole 1124 is slidably matched with the guiding rib 101 to provide guiding for sliding of the sliding block 112.

As shown in fig. 4, specifically, in the present embodiment, the door switch 12 is a door handle that is rotatable between a first position and a second position; when the door handle is rotated to the first position, under the action of the crank piece 111, the link piece 113 drives the slider piece 112 to move to the unlocking position; when the door handle is rotated to the second position, the link member 113 drives the slider member 112 to move to the lock-closing position under the action of the crank member 111.

Preferably, the seat body 10 is provided with a first magnet 16 and a second magnet 17, and the door handle is provided with a third magnet 18 for alternately magnetically attracting the first magnet 16 and the second magnet 17; the first magnet 16 is used for magnetically attracting the door handle in the first position, and the second magnet 17 is used for magnetically attracting the door handle in the second position, so that the door handle is prevented from shaking.

It should be noted that, in some other embodiments, the first magnet 16 and the second magnet 17 may be alternatively disposed.

As shown in fig. 7, the present utility model further provides a pull-cord type door lock, which includes a driving cord 19 and a lock body 20, wherein the lock body 20 is located at an upper side or a lower side of a door leaf to move a lock tongue out of a user's line of sight, and the slider member 112 slides between an unlocking position and a locking position to drive the driving cord 19, the driving cord 19 is connected to the lock body 20 in a driving manner, and the lock body 20 can move between an unlocking state and a locking state under the driving of the driving cord 19. Specifically, when the lock body 20 is in the closed state, the lock tongue may extend to be used for abutting against the upper door frame or the lower door frame, and the door leaf is locked by generating friction force through pressure.

In summary, the door fitting and the pull-cord door lock disclosed by the utility model have at least the following beneficial effects:

1) The crank member 111, the connecting rod member 113 and the slider member 112 form the crank slider mechanism 11, that is, the rotation of the crank member 111 can be converted into the linear motion of the slider member 112, so that a force for pulling the driving rope 19 is provided in the vertical direction, and a user can drive the driving rope 19 by rotating the crank member 111, so that compared with the linear driving operation mode, the rotary driving operation mode is more labor-saving and more convenient;

2) By utilizing the characteristic that the crank slide block mechanism 11 has a dead point, the crank slide block mechanism 11 is prevented from moving due to the reaction force of the driving rope 19, so that the automatic limit of the slide block piece 112 is realized, other unnecessary structures for limiting are reduced, the function is easy to realize, the structure is simple, and the production cost is low;

3) The locking position of the sliding block 112 is the limit position of the sliding stroke of the sliding block 112, and the movement of the sliding block 112 to the locking position is more moderate by utilizing the characteristic that the speed of the sliding block 112 of the crank sliding block mechanism 11 naturally and slowly decreases when approaching the limit position of the sliding stroke;

4) The first extension body 13 is utilized to adjust the assembly position of the transmission rope 19 so as to adapt to different use environments and enable the structure arrangement to be more reasonable;

5) The sliding direction of the second extension body 14 is opposite to that of the first extension body 13, so that the driving ropes 19 in two directions can be pulled simultaneously;

6) The connecting rod piece 113 is in a bending shape, can have the effect of avoiding other structures in the door accessory, and is convenient to assemble;

7) The first magnet 16 and the second magnet 17 serve to hold the position of the door handle, preventing the door handle from shaking.

The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the embodiment, and also comprises the technical scheme formed by any combination of the technical features. It should be noted that modifications and adaptations to the utility model may occur to one skilled in the art without departing from the principles of the present utility model and are intended to be within the scope of the present utility model.

Claims (10)

1. Door fitting, its characterized in that includes:

a base (10);

slider-crank mechanism (11), slider-crank mechanism (11) includes:

a crank member (111) rotatably provided to the base body (10);

a sliding block piece (112) which is arranged on the base body (10) in a sliding way;

a link member (113), wherein one end of the link member (113) is hinged to one end of the crank member (111) away from the rotation center, and the other end of the link member (113) is hinged to the slider member (112);

the connecting rod piece (113) is driven by the crank piece (111) to link the sliding block piece (112) to slide between an unlocking position and a locking position, and the sliding block piece (112) is used for driving the transmission rope (19).

2. Door fitting according to claim 1, wherein the two hinge points of the link member (113) are collinear with the centre of rotation of the crank member (111) when the slider member (112) is in the closed position.

3. Door fitting according to claim 1, wherein the two hinge points of the link member (113) are collinear with the centre of rotation of the crank member (111) when the slider member (112) is in the unlocked position.

4. The door fitting according to claim 1, further comprising a first elongated body (13), said first elongated body (13) being adapted to be connected to one of said driving ropes (19), said first elongated body (13) being connected to a first end (1121) of said slider member (112) and being adapted to follow the same sliding movement of the slider member (112).

5. The door fitting according to claim 1 or 4, further comprising a second elongated body (14) and a gear wheel (15), said second elongated body (14) being adapted to be connected to another said driving rope (19), said second elongated body (14) and a second end (1122) of said slider member (112) being in opposite engagement with said gear wheel (15), said second elongated body (14) being in opposite sliding engagement with said slider member (112).

6. The door fitting according to claim 1, characterized in that the link member (113) is curved.

7. Door fitting according to claim 1, wherein the slider member (112) is provided with a guiding strip hole (1124), the seat body (10) is provided with a guiding rib (101) adapted to the guiding strip hole (1124), and the guiding strip hole (1124) is in sliding fit with the guiding rib (101).

8. The door fitting according to claim 1, further comprising a door switch (12), the door switch (12) being adapted to drive the crank member (111) in rotation.

9. The door fitting according to claim 8, wherein the door switch (12) is a door handle, the door handle being rotatable between a first position and a second position; when the door handle is rotated to the first position, under the action of the crank piece (111), the connecting rod piece (113) drives the sliding block piece (112) to move to the unlocking position; when the door handle is rotated to the second position, under the action of the crank piece (111), the connecting rod piece (113) drives the sliding block piece (112) to move to the locking position;

the door fitting further comprises a first magnet (16) and/or a second magnet (17) arranged on the base body (10); the first magnet (16) is used for magnetically attracting the door handle in the first position; the second magnet (17) is used for magnetically attracting the door handle in the second position.

10. A pull-cord door lock, comprising a driving cord (19) and a lock body (20), and further comprising a door fitting according to any one of claims 1 to 9, wherein the slider member (112) slides between the unlocking position and the locking position to drive the driving cord (19), the driving cord (19) is in driving connection with the lock body (20), and the lock body (20) can move between an unlocking state and a locking state under the driving of the driving cord (19).