CN107975305B

CN107975305B - Inside operating device for door lock

Info

Publication number: CN107975305B
Application number: CN201610938938.7A
Authority: CN
Inventors: 沈奕廷
Original assignee: I Tek Metal Manufacturing Co Ltd
Current assignee: I Tek Metal Manufacturing Co Ltd
Priority date: 2016-10-25
Filing date: 2016-10-25
Publication date: 2020-03-10
Anticipated expiration: 2036-10-25
Also published as: CN107975305A

Abstract

The invention provides an inner side operating device for a door lock, the door lock is installed in a latch device of the door, the inner side operating device of the invention is installed in the inner side of the door, the inner side operating device comprises a first sensing piece and an electric driving device electrically connected with the first sensing piece, the inner side operating device further comprises a second sensing piece installed in the latch device, when the first sensing piece senses the pressure applied to the outer side of the inner side operating device, the electric driving device is driven to operate, the latch head is caused to displace from a latching position to a unlatching position, when the latch device is set to be in a locking or unlocking state, the second sensing piece outputs a corresponding signal to a light-emitting device arranged in the inner side operating device to generate light for indicating the locking or unlocking state of the latch device.

Description

Inside operating device for door lock

Technical Field

The present invention relates to an inside operating device for a door lock, and more particularly, to an inside operating device for a door lock, which is installed at an inside surface of a door to operate a latch device installed in the door to have a latch head moved between an unlatched position and an unlatched position.

Background

A door lock of the type that is commercially available is often used in escape doors or access doors, generally referred to as escape door locks, which generally comprise an outer operating device mounted on the outer side of the door, an inner operating device mounted on the inner side of the door and of a different type than the outer operating device, the escape door lock further comprising a latch device mounted in the door and being separately operable by the inner operating device or the outer operating device, respectively, the latch device comprising a latch head displaceable between a latched position protruding outside the door and an unlatched position retracted inside the door, the latch being set to the latched state or the unlatched state by an outer cylinder provided by the outer operating device or by an inner cylinder provided by the inner operating device.

When the door lock is set to the unlocked state, the bolt of the latch device can be operated to move from the latching position to the unlatching position by using either the outside operating device or the inside operating device, so as to achieve the purpose of opening the door, if the door lock is set to the locked state, the bolt of the latch device cannot be driven to move from the latching position to the unlatching position by using the outside operating device, and further the door cannot be opened by using the outside operating device, so as to prevent the small things from easily invading into the inner side (e.g. indoor) of the door from the outer side (e.g. outdoor) of the door, however, based on the consideration of emergency escape, the user can easily operate the bolt of the latch device to move from the latching position to the unlatching position by using the inside operating device regardless of whether the door lock is set to the locked state or the unlocked state, that is, regardless of whether the door lock is set, the door can be easily opened from the inner side of the door (e.g., indoors) to facilitate escape.

Since the escape door lock can be opened using the inside operating device regardless of whether the escape door lock is set in the locked or unlocked state, the escape door lock is set in the locked state in a state where the user is positioned inside the door, and it is not possible to confirm whether the escape door lock is actually set in the locked state by operating the inside operating device, which is inconvenient in use.

Furthermore, the inside operating device of the escape door lock has a complex mechanical structure and high manufacturing cost.

The present invention will become more apparent from the detailed description of illustrative embodiments thereof given in conjunction with the accompanying drawings.

Disclosure of Invention

The invention aims to: an inside operating device for a door lock is provided to solve the above-mentioned technical problems in the prior art.

To solve the problem, the present invention provides an inside operating device for a door lock including a latch device installed in a housing of a door, including a latch head displaceable between a latched position and an unlatched position, the latch device further including a locking member displaceable between a locking position and a releasing position, the latch head being allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the releasing position, and the latch head being not allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the locking position, the inside operating device comprising: a body, which is arranged on an inner side surface of the door, the body comprises a first part and a second part, the first part comprises a first space positioned on the inner side and a first combination part formed in the first space, the second part comprises a second space, an electric driving device which is accommodated in the first space of the body and is combined on the first combination part, the electric driving device is used for being combined with a latch head of the latch device in a linkage way, a first sensing piece is arranged in the second space of the body and is electrically connected with the electric driving device and is a second sensing piece arranged in the latch device, when the locking piece is positioned at a release position, the locking piece is in one state of pressing or not pressing the second sensing piece, when the locking piece is positioned at a locking position, the locking piece is in the other state of pressing or not pressing the second sensing piece, the operating piece is combined with the second space of the body, one part of the operating piece is exposed out of the second part, the operating piece comprises an accommodating space, the operating piece is attached to the first sensing piece in an attached mode, and the light-emitting device and the second sensing piece are accommodated in the accommodating space of the operating piece.

When the operating member is not subjected to external force, the operating member does not press the first sensing member, the electric driving device does not operate, the latch head is kept at the latching position, when the operating member is subjected to external force, the operating member presses the first sensing member, the electric driving device operates, the latch head is displaced from the latching position to the unlatching position, and when the locking member is positioned at the locking position, the light-emitting device generates light or does not generate light,

in the state that the locking piece is located at the releasing position, the light-emitting device generates bright light or generates no bright light.

The present invention provides another inside operating device for a door lock including a latch device installed in a housing of a door, including a head displaceable between a latched position and an unlatched position, the latch device further including a locking member displaceable between a locking position and a releasing position, the head being allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the releasing position, and the head being not allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the locking position, the inside operating device including: a body, which is arranged on an inner side surface of the door, the body comprises a first part and a second part, the first part comprises a first space positioned on the inner side and a first combination part formed in the first space, the second part comprises a second space, an electric driving device which is accommodated in the first space of the body and combined on the first combination part, the electric driving device is used for being combined with a latch head of the latch device in a linkage way, a first sensing piece which is arranged in the second space of the body and electrically connected with the electric driving device is a second sensing piece arranged in the latch device, when the locking piece is positioned at a release position, the locking piece is in one state of pressing or not pressing the second sensing piece, when the locking piece is positioned at a locking position, the locking piece is in the other state of pressing or not pressing the second sensing piece, the operating piece is combined with the second space of the body, one part of the operating piece is exposed out of the second part, the operating piece comprises an accommodating space, the operating piece is attached to the first sensing piece in an attached mode, and the light-emitting device and the second sensing piece are accommodated in the accommodating space of the operating piece.

When the operating member is not subjected to external force, the operating member does not press the first sensing member, the electric driving device does not operate, the latch head is kept at the latching position, when the operating member is subjected to external force, the operating member presses the first sensing member, the electric driving device operates, the latch head is displaced from the latching position to the unlatching position, when the locking member is positioned at the locking position, the light-emitting device generates light of a first color, and when the locking member is positioned at the releasing position, the light-emitting device generates light of a second color different from the first color.

The inner side operation device of the invention can judge whether the door lock is set to the locking state or the unlocking state through the bright light or not generated by the light-emitting device, thus effectively solving the problem that the inner side operation device can not judge whether the door lock is set to the locking state or the unlocking state. In addition, the sub-design of the inner operation device greatly reduces the complexity of the mechanical structure and the number of parts, and can effectively reduce the manufacturing cost.

Drawings

Fig. 1 is an exploded perspective view of a door lock constructed by incorporating the inside operating device of the present invention.

Fig. 2 is an exploded perspective view of the inside operation device of the present invention.

Fig. 3 is a front view of a door lock constructed with the inside operating device of the present invention.

Fig. 4 is a partially enlarged view of fig. 3.

Fig. 5 is a cross-sectional view taken along line 5-5 of fig. 3.

Fig. 6 is a partially enlarged view of fig. 5.

Fig. 7 is a cross-sectional view taken along line 7-7 of fig. 3.

Fig. 8 is a view showing a state where the light emitting device of the inner operation device is lighted after the door lock is configured with the inner operation device of the present invention and the locking member is displaced to the locking position.

FIG. 9 is a diagram of a door lock constructed with the inside operating device of the present invention, wherein the electric driving device rotates the driving member to move the latch to the unlatching position by pressing the operating member.

Description of reference numerals: 10 door locks; 20 doors; 22 a chamber; 24 medial side; 26 an outer side surface; 28 end faces; 30 a latch device; 32 a housing; 34 opening; 36 a first pivot portion; 38 a second pivot portion; 40 a third pivot part; 42 bolt head; a retractor 44; 46 a push rod; 48 compression bars; 50 a unlatching member; 54 push the arm; 55 grooves; 56 a transmission block; 57 a pivot part; 58 a first end; 60 a second end; 62 rocker arms; 64 a pivoting end; 66 a linkage end; 68 pushing the end; 70 a locking member; 72 a blocking part; 74 a pressing part; 76 an outer operating device; 78 an outer cover; 80 mounting a column; 82 an outer handle; 84 driving the rod; 86 an outer lock cylinder; 88 outer lock core; 90 an outer toggle piece; 92 an inside operation device; 94 a body; 96 a first portion; 98 a first space; 111 a first coupling portion; 113 a second bonding portion; 115 a second portion; 117 an outer surface; 119 an inner surface; 131 a second space; 133 a first notch; 135 a second notch; 137 inner lock cylinder; 139 inner lock core; 151 inner toggle piece; 153 electric drive means; 155 a driving member; 157 a release end; 159 drive end; 171 a cover; 173 a first sensing member; 174 a second sensing member; 175 an operating member; 177 an outer side surface; 179 accommodating space; 191 against the wall; 192 hook parts; 193 a light emitting device; 195 a light transmissive cover; 197 a sound dialing device; 199 anti-theft device.

Detailed Description

The drawings are designed solely for the purpose of illustrating the general teachings, and the extension of the number, location, relationship, and dimensions of the elements making up the illustrative embodiments will be described or become apparent to those skilled in the art upon reading and understanding the following description. It is also well within the skill of the art to modify the exact dimensions and dimensional proportions to conform to specific force, weight, strength, and similar requirements after the following description has been read and understood.

The same reference numbers will be used throughout the drawings to refer to the same or like parts; it is further understood that terms such as "bottom," "first," "second," "front," "back," "end," "side," and the like are used solely for ease of reference by the viewer to the construction of the figures and to aid in the description of illustrative embodiments.

According to the drawings, the door lock 10 is mounted on a door 20, said door 20 comprising a chamber 22 formed inside, the door 20 further comprising an inner side 24 and an outer side 26 spaced apart from each other outside the chamber 22, the door 20 also comprising an end surface 28 outside the chamber 22 and extending between the inner and

outer sides

24, 26, the end surface 28 comprising a hole communicating with the chamber 22.

The door lock 10 includes a latch assembly 30 coupled to the door 20, the latch assembly 30 including a housing 32 secured to the end surface 28 of the door 20, the housing 32 having a first pivot portion 36, a second pivot portion 38 and a third pivot portion 40 disposed therein, wherein the second pivot portion 38 is longitudinally positioned between the first and

third pivot portions

36, 40, the housing 32 including an opening 34 formed below the first pivot portion 36.

The latching mechanism 30 includes a latch head 42 slidably engaged with the housing 32 in a transverse direction perpendicular to the longitudinal direction and a retractor 44 engaged with the latch head 42 for movement therewith, the latch head 42 and retractor 44 being longitudinally positioned between the second and

third pivot portions

38, 40, the latch head 42 being displaceable transversely between an unlatched position outwardly of the extended door 20 (as shown in figures 4 and 8) and an unlatched position inwardly of the retracted door 20 (as shown in figure 9).

Referring to the drawings of FIG. 4, the latch mechanism 30 further includes a push rod 48 and a push rod 46 received in the housing 32 and pivotally connected to the first pivot portion 36, wherein the end of the push rod 46 is coupled to the retractor 44 such that when the push rod 46 pivots to displace the retractor 44 with the latch head 42 (as shown in FIG. 9), the push rod 48 is disposed within the opening 34 and one end of the push rod 48 abuts against the push rod 46 such that the push rod 46 is pivoted by the push rod 48.

The latch assembly 30 also includes a release member 50 pivotally connected to the second pivot portion 38, and an actuator block 56 pivotally connected to and overlapping the third pivot portion 40, and a rocker arm 62, wherein the release member 50 includes a push arm 54 abutting the push rod 46, and the release member 50 further includes a recess 55 formed at the end of the push arm 54. The transmission block 56 includes a pivot portion 57 pivotally connected to the third pivot portion 40, a first end 58 and a second end 60 spaced apart from the pivot portion 57, the rocker arm 62 includes a pivot end 64 pivotally connected to the third pivot portion 40, a linking end 66 coupled to the first end 58 of the transmission block 56 for rotation therewith, and a pushing end 68 spaced apart from the pivot end 64 and the linking end 66, the rocker arm 62 allows pivoting about a central axis of the third pivot portion 40.

The latch assembly 30 includes a locking member 70 longitudinally displaceably received in the housing 32, the locking member 70 including a stop portion 72 adjacent to the bolt release member 50, and a pressing portion 74 extending from the stop portion 72, the pushing end 68 of the rocker arm 62 cooperating with the locking member 70 so as to urge the locking member 70 to longitudinally displace between a locking position (shown in fig. 8) and a releasing position (shown in fig. 3 and 4) in a pivoting manner about the central axis of the third pivot portion 40, in a state where the locking member 62 is in the releasing position, the stop portion 72 of the locking member 70 is aligned with the recess 55 of the bolt release member 50 to allow the bolt release member 50 to pivot to interlock the bolt head 42, and in a state where the locking member 70 is in the locking position, the stop portion 72 of the locking member 70 is misaligned with the recess 55 of the bolt release member 50 without allowing the bolt release member 50 to pivot to interlock the bolt head 42.

As shown in fig. 1, the door lock 10 further includes an outside operating device 76 mounted on the outer side 26 of the door 20, the outside operating device 76 including an outside cover 78 and an outside handle 82 pivoted on an outer surface of the outside cover 78, the outside operating device 76 further including a driving lever 84 coupled to the outside handle 82, the outside handle 82 being pivoted to pivot the driving lever 84, the outside operating device 76 also including a plurality of mounting posts 80 fixed on an inner side of the outside cover 78 and an outside lock cylinder 86, the outside lock cylinder 86 including an outside lock cylinder 88 locked against rotation or unlocked by a key and an outside toggle member 90 fixed on an end of the outside lock cylinder 88, the outside lock cylinder 86 being fixed on the outside cover 78.

The outer cover 78 of the outer operating device 76 abuts the outer side 26 of the door 20 and the drive rod 84 extends through the outer side 26 of the door 20 into the latch device 30 to engage the unlatching member 50 (as shown in fig. 4), each mounting post 80 extends into the chamber 22 of the door 20, and the outer cylinder 86 extends through the outer side 26 of the door 20 into the housing 32 of the latch device 30 and over the rocker arm 62 and the actuator block 56. Rotation of the outer handle 82 causes the push rod 46 to displace the retractor 44 and, in turn, the bolt head 42 between the latched and unlatched positions by pivoting the actuating lever 84 in conjunction with the unlatching member 50, thereby allowing the outer paddle 90 to push the first or

second ends

58, 60 of the actuator block 56 and the rocker arm 62 to displace the latching member 70 between the latched and unlatched positions upon rotation of the outer core 88 of the outer lock cylinder 86.

As shown in the drawings, the door lock 10 further incorporates an inside operating device 92 of the present invention, the inside operation means 92 includes a body 94, the body 94 includes a first portion 96 extending longitudinally and a second portion 115 extending laterally from one side of the first portion 96, the first portion 96 includes a first space 98 formed at an inner surface 119 and a first coupling portion 111 formed at an end surface of the first space 98, the first portion 96 further includes a second coupling portion 113 formed at an outer surface and communicating with the first space 98, the second portion 115 includes an outer surface 117 and an inner surface 119 spaced apart from each other, the second portion 115 includes a second space 131 formed at the inner surface 119 and spaced apart from the outer surface 117, the second portion 115 further includes a first notch 133 formed at the outer surface 117 and extending to the second space 131 and a second notch 135 formed at the outer surface 117 and spaced apart from the first notch 133. The body 94 abuts the inner side 24 of the door 20 and the first portion 96 is aligned with the outer cover 78 of the outer operator 76, further allowing the use of a plurality of screws through the first portion 96 of the body 94 and into each mounting post 80 of the outer operator 76, causing the body 94 and the outer operator 76 to be clamped on both sides of the door 20 (as shown in fig. 5).

The inside operating means 92 further includes an electric drive 153 mounted to the first portion 96 of the body 94 and an inner lock cylinder 137, wherein the inner lock cylinder 137 includes an inner cylinder 139 that can be locked against rotation or unlocked for rotation by a key and an inner toggle 151 secured to the end of the inner cylinder 139. The inner lock cylinder 137 is fixed to the second engaging portion 113 of the first portion 96 of the body 94, one end of the inner lock cylinder 137 having the inner toggle member 151 passes through the inner side surface 24 of the door 20 and is located in the housing 32 of the latch device 30 and above the transmission block 56 and the rocker arm 62, and after the locking of the inner lock cylinder 139 is released by using a proper key, the inner lock cylinder 139 is allowed to rotate to cause the inner toggle member 151 to rotate against the transmission block 56, thereby further causing the rocker arm 62 to interlock the locking member 70 to be displaceable between a locking position (as shown in fig. 8) and a releasing position (as shown in fig. 3).

The electric driving device 153 is accommodated in the first space 98 and fixed to the first coupling portion 111, the electric driving device 153 may be an electric motor, a driving member 155 is fixed to a rotating shaft of the electric driving device 153, the driving member 155 includes a releasing end 157 and a driving end 159, a distance between the releasing end 157 and a pivot axis of the rotating shaft of the electric driving device 153 is smaller than a distance between the driving end 159 and the pivot axis of the rotating shaft of the electric driving device 153, and thus the driving member 155 is formed in a cam shape. The drive member 155 is positioned in the chamber 22 of the door 20 below the striker 48 of the latch assembly 30 (as shown in fig. 4), and the peripheral surface of the drive member 155 abuts the bottom of the striker 48. Rotation of the drive member 155 actuates the striker 48 via the release end 157 or the drive end 159, further causing displacement of the latch head 42 between the unlatched and unlatched positions (see fig. 4 and 9).

As shown in the drawings, the inner operating device 92 further includes a cover 171 fixed on the inner surface 119, a first sensing member 173 fixed on the surface of the cover 171, and an operating member 175 received in the second space 131, wherein the cover 171 is screwed between the inner surface 119 of the second portion 115 and the inner side 24 of the door 20 by a plurality of screws, and the first sensing member 173 is located in the second space 131. In addition, the first sensing member 173 may be a commercially available pressure sensor, but is not limited thereto.

The actuator 175 includes an outer end surface 177 and a receiving space 179 formed on the outer end surface 177, the actuator 175 further includes a pressing wall 191 facing the first sensing member 173, the actuator 175 also includes two hooks 192 formed on the outer peripheral surface, and the electric driving device 153 is electrically connected to the first sensing member 173. The operation element 175 is accommodated in the second space 131, the outer end face 177 is located outside the second space 131, the hooks 192 abut against the peripheral wall of the first notch 133 of the second portion 115, and the pressing wall 191 abuts against the first sensing element 173.

The light emitting device 193 is fixedly disposed in the receiving space 179 of the operating member 175, the light emitting device 193 may be formed by a plurality of light emitting diodes, and the outer end surface 177 of the operating member 175 is disposed with a light-transmitting cover 195, so that the light generated by the light emitting device 193 can be displayed on the light-transmitting cover 195.

Referring to fig. 4, the inner operating device 92 further includes a second sensing member 174 mounted in the housing 32 of the latch device 30, the second sensing member 174 is located below the pressing portion 74 of the locking member 70, and the second sensing member 174 is electrically connected to the light-emitting device 193.

The inside operating device 92 also includes a sound-dialing device 197 received in the second space 131 and located in the second notch 135, the sound-dialing device 197 may be electrically connected to an anti-theft device 199, and the anti-theft device 199 may be, for example, a magnetic switch installed between the door and the door frame, or an infrared sensor or other similar electronic device installed in the passageway, and is used to detect whether the indoor space is intruded in an unexpected situation. In addition, the electric driving device 153, the light emitting device 193, the sound emitting device 197 and the first and

second sensing members

173 and 174 may be powered by a battery or other power source

For convenience of description, it is assumed that the latch head 42 of the latch device 30 is in the latching position and the locking member 70 is in the releasing position, in such a state that the latch release member 50 is allowed to pivot, and in addition, the releasing end 157 of the driving member 155 abuts against the pressing rod 48, and the latch head 42 is in the latching position (as shown in fig. 3 and 4), so that if the outer handle 82 of the outer operating device 76 is rotated, the driving lever 84 moves the pushing arm 54 of the latch release member 50 to push the pushing rod 46 against the retractor 44, so that the latch head 42 is displaced from the latching position to the unlatching position, and the latch head 42 is in the unlatching position, and releases the outer handle 82, and the latch head 42 is biased by a spring to return together with the retractor 44.

Assuming that the locked state of the outer lock cylinder 88 of the outer lock cylinder 86 is unlocked by using a correct key, allowing the outer lock cylinder 88 to be rotated by using the key to press the outer toggle member 90 against the second end 60 of the transmission block 56, such that the transmission block 56 is pivoted and the first end 58 thereof is linked with the rocker arm 62 to pivot, causing the locking member 70 to be displaced from the release position (the door lock 10 is unlocked as shown in fig. 3) to the locking position (the door lock 10 is locked as shown in fig. 8), in such a state that the pressing portion 74 of the locking member 70 presses the second sensing member 174, causing the second sensing member 174 to output a signal to the light-emitting device 193, further the light-emitting device 193 generates light to be displayed on the light-transmitting cover 195, it can be judged from the light-emitting device 193 of the inner operation device 92 that the door lock 10 is locked (the latch head 42 cannot be operated to be displaced to the unlatching position via the outer handle 82 of the, in the state where the locking member 70 is located at the locking position, the stopper 72 of the locking member 70 is displaced from the recess 55 of the bolt releasing member 50, so that the pivotal path of the bolt releasing member 50 is blocked by the stopper 72 of the locking member 70 and cannot be pivoted, and further, the outer handle 82 of the outer operating device 76 cannot be rotated, and thus the latch head 42 cannot be displaced to the releasing position by the outer handle 82 of the outer operating device 76.

Whether the locking member 70 is located at the locking position or the releasing position, as long as pressure is applied to the operating member 175 on the inner side of the door 20, the operating member 175 is pressed against the first sensing member 173, so that the first sensing member 173 outputs a signal to control the operation of the electric driving device 153, the driving member 155 pivots from the angle that the releasing end 157 abuts against the pressing rod 48 to the angle that the driving end 159 abuts against the pressing rod 48, the pressing rod 48 pivots by being pressed by the driving member 155, further, the pressing rod 48 pivots by abutting against the pushing rod 46, so that the pushing rod 46 is linked with the retractor 44 to displace, and thus the latch head 42 is displaced from the latching position (shown in fig. 3) to the unlatching position (shown in fig.

Assuming that the locking member 70 is in the releasing position, the locking of the inner core 139 of the inner lock cylinder 137 is released by using the correct key, and further, the inner core 139 is rotated by using the key to make the inner toggle member 151 press against the second end 60 of the transmission block 56, so that the locking member 70 is pushed by the rocker arm 62 to be displaced from the releasing position to the locking position, the second sensing member 174 is pressed against the pressing portion 74 of the locking member 70, and further, the light-emitting device 193 of the inner operation device 92 generates a light source to be displayed on the light-transmitting cover 195.

When the locking member 70 is in the locked position, the key is used to unlock the locked state of the inner lock cylinder 139 of the inner lock cylinder 137 or the locked state of the outer lock cylinder 88 of the outer lock cylinder 86, and the inner toggle member 151 or the outer toggle member 90 is further operated to press against the first end 58 of the transmission block 56, so that the transmission block 56 is pivotally reset, and simultaneously the rocker arm 62 moves the locking member 70 from the locked position (shown in fig. 8) to the released position (shown in fig. 3 and 4), so that the pressing portion 74 of the locking member 70 releases the second sensing member 174, the second sensing member 174 does not output a signal to the light-emitting device 193, and further the light-emitting device 193 extinguishes the light source.

The inside operating device 92 of the present invention can determine whether the door lock 10 is set to the locked state or the unlocked state by the bright light or no bright light generated by the light emitting device 193, thereby effectively solving the problem that the inside operating device 92 cannot determine whether the door lock 10 is set to the locked state or the unlocked state.

In addition, the electronic design of the inner operation device 92 of the present invention can significantly reduce the complexity of the mechanical structure and the number of parts, thereby effectively reducing the manufacturing cost.

While the basic teachings of the present invention have been described, numerous extensions and variations will be apparent to those of ordinary skill in the art. For example, the electric driving device 153 of the present invention may be an electric motor, but the electric driving device may be other than an electric motor, for example, the electric driving device may be a commercially available solenoid valve, but not limited to the commercially available solenoid valve, and if the solenoid valve is used as the electric driving device, the driving member 155 may not be included, and the solenoid valve is used to power on and off to move the pressing rod 48 of the interlocking latch device 30 to pivot, and the interlocking latch 42 can be moved between the latched position and the unlatched position. Alternatively, the first sensing member 173 may be a device other than a pressure sensor, for example, the first sensing member 173 may be a micro switch.

It should be noted that, in addition to the light emitting device 193 generating a light source to indicate that the door lock 10 is in the locked state and the light emitting device 193 not generating a light source to indicate that the door lock 10 is in the unlocked state, the inside operating device 92 may also generate a light source of a different color by the light emitting device 193 to indicate that the door lock 10 is in the locked state or the unlocked state, for example, when the door lock 10 is set to the locked state, the light emitting device 193 generating a red light source to display on the translucent cover 195, and when the door lock 10 is set to the unlocked state, the light emitting device 193 generating a green light source to display on the. Alternatively, the light-emitting device 193 may be designed such that the light-emitting device 193 does not emit light when the door lock 10 is set to the locked state, and the light-emitting device 193 emits light when the door lock 10 is set to the unlocked state.

Alternatively, the door lock 10 may incorporate a different type of outside operating device 76, for example, the outside operating device 76 may be formed by only one outside lock cylinder 86 and one fixed handle mounted on the outside 26 of the door 20, and the proper metal key is used to unlock the outside cylinder 88 of the outside lock cylinder 86, thereby allowing the latch head of the latch device (e.g., the latch device disclosed in the patent of U.S. 8,641,104) to be moved from the latched position to the unlatched position by using the outside lock cylinder 86 to operate the latch device.

The foregoing description is intended to be illustrative rather than limiting, and it will be appreciated by those skilled in the art that many modifications, variations or equivalents may be made without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. An inside operating device for a door lock including a latch device installed in a housing of a door, including a head displaceable between a latched position and an unlatched position, the latch device further including a locking member displaceable between a locking position and a releasing position, the head being allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the releasing position, and the head being not allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the locking position, the inside operating device comprising:

a body installed at an inner side surface of the door, the body including a first portion including a first space at the inner side and a first coupling portion formed in the first space, and a second portion including a second space;

an electric driving device, which is accommodated in the first space of the body and combined on the first combining part, and is used for combining with the latch head of the latch device in a linkage way;

the first sensing piece is arranged in the second space of the body and is electrically connected with the electric driving device;

a second sensing member for being mounted in the latch device, wherein the locking member is in one of a state of being pressed against or not pressed against the second sensing member in a state where the locking member is located at the release position, and the locking member is in the other of the state of being pressed against or not pressed against the second sensing member in a state where the locking member is located at the lock position;

the operating piece is combined with the second space of the body, one part of the operating piece is exposed out of the second part, the operating piece comprises an accommodating space, and the operating piece is attached to the first sensing piece;

the light-emitting device is accommodated in the accommodating space of the operating piece and is electrically connected with the second sensing piece;

when the operating member is not subjected to external force, the operating member does not press the first sensing member, the electric driving device does not operate, the latch head is kept at the latching position,

when the operating member is under the external force, the operating member presses the first sensing member, the electric driving device operates, the latch moves from the latching position to the unlatching position,

in the state that the locking piece is positioned at the locking position, the light-emitting device generates one of bright light or no bright light,

2. The inside operating device for a door lock according to claim 1, wherein: the first sensing member is formed by a pressure sensor.

3. The inside operating device for a door lock according to claim 1, wherein: the second portion of the body includes a first notch communicating with the second space and a second notch spaced apart from the first notch, the operating member is located in the first notch, and the inside operating device further includes:

the dialing device is arranged in the second space of the body and positioned in the second gap, the dialing device is electrically connected with an anti-theft device, the dialing device generates warning sound when the anti-theft device is triggered, and the dialing device does not generate warning sound when the anti-theft device is not triggered.

4. The inside operating device for a door lock according to claim 3, wherein: the operating piece comprises two hook parts formed on the outer peripheral surface, and each hook part of the operating piece is buckled with the peripheral surface of the first notch of the body.

5. The inside operating device for a door lock according to claim 1, further comprising:

and the electric driving device drives the driving end of the driving piece to drive the latch head to move from the latching position to the unlatching position or drives the release end of the driving piece to drive the latch head to move from the unlatching position to the latching position.

6. The inside operating device for a door lock according to claim 1, wherein: the first portion of the body also includes a second joint in communication with the first space, the second joint further including:

an inner lock cylinder comprises an inner lock core which can be locked, fixed or unlocked and can rotate, and an inner stirring piece which is combined with the inner lock core and can rotate together, wherein the inner stirring piece is combined with the locking piece in a linkage manner, and the inner lock core is unlocked to allow the inner stirring piece to be operated to drive the locking piece to move between a locking position and a releasing position.

7. An inside operating device for a door lock including a latch device installed in a housing of a door, including a head displaceable between a latched position and an unlatched position, the latch device further including a locking member displaceable between a locking position and a releasing position, the head being allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the releasing position, and the head being not allowed to be displaced from the latched position to the unlatched position in a state where the locking member is in the locking position, the inside operating device comprising:

a second sensing member installed in the latch device, wherein the locking member is in one of a state of being pressed against or not pressed against the second sensing member in a state where the locking member is located at the release position, and the locking member is in the other of the state of being pressed against or not pressed against the second sensing member in a state where the locking member is located at the lock position;

in the state that the locking piece is positioned at the locking position, the light-emitting device generates light of a first color,

the light emitting device generates a second color light different from the first color light in a state where the locking member is located at the releasing position.

8. The inside operating device for door lock according to claim 7, wherein the first sensing member is constituted by a pressure sensor.

9. The inside operating device for a door lock according to claim 7, wherein: the second portion of the body includes a first notch communicating with the second space and a second notch spaced apart from the first notch, the operating member is located in the first notch, and the inside operating device further includes:

10. The inside operating device for a door lock according to claim 9, wherein: the operating piece comprises two hook parts formed on the outer peripheral surface, and each hook part of the operating piece is buckled with the peripheral surface of the first notch of the body.

11. The inside operating device for a door lock according to claim 7, further comprising:

12. The inside operating device for a door lock according to claim 7, wherein: the first portion of the body also includes a second joint in communication with the first space, the second joint further including: