CN211173532U

CN211173532U - Mechanical lock with escape function

Info

Publication number: CN211173532U
Application number: CN201921977199.8U
Authority: CN
Inventors: 程倩雁
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-15
Filing date: 2019-11-15
Publication date: 2020-08-04
Anticipated expiration: 2029-11-15

Abstract

The utility model relates to a mechanical lock with escape function, which comprises a lock shell, wherein a transmission mechanism and a spring bolt are arranged in the lock shell, and a through hole for the spring bolt to pass in and out is arranged on the side surface of the lock shell; the transmission mechanism comprises a lock tongue transmission mechanism and an escape transmission mechanism; the lock tongue transmission mechanism comprises a driving shift lever and a push piece, and the driving shift lever is in transmission connection with the lock tongue through the push piece; the lock shell is also internally provided with an elastic device which enables the spring bolt to automatically pop out through the spring bolt transmission mechanism; the escape driving mechanism comprises an escape shifting wheel and an escape shifting rod, an escape handle is arranged outside the lock shell and fixedly connected with the escape shifting wheel, and the escape shifting wheel is in driving connection with the driving shifting rod through the escape shifting rod. The utility model discloses simple structure can open the lock through the handle in the door under the special circumstances to realize the function of fleing.

Description

Mechanical lock with escape function

Technical Field

The utility model relates to a mechanical lock with function of fleing belongs to mechanical tool to lock technical field.

Background

As far as the inventor knows, the door lock is inevitably subject to failure or damage in use, so that the situation of locking people in the door occurs, and serious personal injury and property loss are caused in the dangerous situation. If the door lock has the escape function, people to be locked can open the door lock from the door in an emergency and escape, and serious consequences can be avoided.

Through the search discovery, the chinese utility model patent of application No. CN2008201070529, the grant publication No. CN201173023Y discloses a plug-in mechanical lock body with function of fleing, including lock shell, panel, oblique tongue pole, preceding baffle, backplate, dog, oblique tongue reset spring, reversing spring, handle thumb wheel, many teeth plectrum, square tongue, gleitbretter, stay and linkage piece, this lock body still includes: the small shifting wheel is arranged in the locking sheet slide way, one end of the small shifting wheel is in contact with a shifting block welded on the handle shifting wheel, the other end of the small shifting wheel abuts against the locking sheet, the shifting sheet is rotationally fixed on the lock shell through a shifting sheet shaft, one end of the shifting sheet is in contact with the sliding sheet, the other end of the shifting sheet is in contact with a convex block welded on the handle shifting wheel, a locking sheet spring is arranged on the shifting sheet shaft, one end of the locking sheet spring abuts against the lock shell, and the other end of the locking sheet spring abuts against the locking sheet. According to the technical scheme, the latch bolt and the dead bolt can be driven simultaneously by pressing the handle, so that the door can be opened.

Chinese utility model patent No. CN2011204345455, No. CN202299739U, discloses an escape lock, which includes a latch bolt, a square bolt, a first shift shaft and a second shift shaft, the first shift shaft interacts with the driving force outside the door, the second shift shaft interacts with the driving force inside the latch bolt, the square bolt and the door, the first shift shaft and the second shift shaft are located at the same axis, and are assembled together through a driven part with a clamping position, and the second shift shaft can rotate along with the first shift shaft through the driven part; the escape lock further comprises a driving part arranged on the escape lock, the driving part is at least partially composed of an elastic part, and the first end of the driving part abuts against the driven part. By adopting the escape lock with the structure, when the driven part is in a non-meshing position, the possibility of blocking of parts is avoided through the driving part when the handle on the outer side of the door leaf is pressed downwards, so that the lock body can be opened through the control part on the inner side of the door leaf when the handle on the outer side of the door leaf is pressed downwards.

However, the lock body structure of the above technical scheme is slightly complicated, and there is room for improvement.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at: aiming at the problems in the prior art, the mechanical lock with the escape function is provided, the structure is simple, and the door lock can be opened from the inside of the door through the handle under special conditions, so that the escape function is realized.

In order to achieve the above purpose, the technical scheme of the utility model is as follows:

the mechanical lock with the escape function comprises a lock shell, wherein a transmission mechanism and a lock tongue are arranged in the lock shell, and a through hole for the lock tongue to enter and exit is formed in the side surface of the lock shell; the escape device is characterized in that the transmission mechanism comprises a lock tongue transmission mechanism and an escape transmission mechanism; the lock tongue transmission mechanism comprises a driving shift lever and a push piece, and the driving shift lever is in transmission connection with the lock tongue through the push piece; an elastic device which enables the spring bolt to automatically pop out through a spring bolt transmission mechanism is also arranged in the lock shell; the escape driving mechanism comprises an escape shifting wheel and an escape shifting rod, an escape handle is arranged outside the lock shell and fixedly connected with the escape shifting wheel, and the escape shifting wheel is in driving connection with the drive shifting rod through the escape shifting rod.

In the structure, the lock tongue transmission mechanism can realize the basic functions of the lock, and when in actual use, an external wrench or a lock cylinder drives a shift lever to eject or retract the lock tongue so as to realize the locking and unlocking functions; the elastic device can enable the lock tongue to keep automatically popping; the escape handle acts on the driving shift lever through the escape transmission mechanism, and then drives the lock tongue to retract to unlock, so that the escape unlocking function is realized.

The utility model discloses can also adopt following preferred scheme:

preferably, the mechanical lock has:

the driving lever is driven to push the push sheet to enable the lock tongue to be popped up in a locking state under the action of external force;

the driving lever is driven to pull the push piece under the action of external force to enable the lock tongue to retract to an unlocking state;

on the basis of the unlocking state, when the external force is removed, the elastic device acts on the driving deflector rod to push the push sheet to enable the lock tongue to be popped out;

under the action of external force, the escape handle drives the escape shifting wheel to rotate, and then the escape shifting rod is driven to act on the driving shifting rod to pull the push piece to enable the lock tongue to retract.

With this preferred solution, the main state of the mechanical lock can be further defined.

Preferably, the driver has a fixed axis of rotation, and the driver forms a revolute pair with axial constraint with the lock housing at its axis of rotation; one end of the push piece is fixedly connected with the lock tongue, the other end of the push piece is provided with a groove, and the tail end of the driving deflector rod extends into the groove; the push piece and the lock shell form a moving pair, and the moving direction of the moving pair is the same as that of the lock tongue; the moving directions of the driving deflector rod and the pushing piece are positioned in the same plane or in different planes parallel to each other.

By adopting the preferred scheme, the structure of the bolt transmission mechanism can be further optimized.

More preferably, the driving deflector rod is fixedly provided with a first hollow spline rod at the rotation axis thereof, and the first hollow spline rod is rotationally connected with the lock shell; the push sheet is provided with a pin-shaped component, the lock shell is provided with a limiting hole for the pin-shaped component to slide, and the pin-shaped component is limited in the limiting hole; the lock bolt is a square bolt, a bolt hook and a return spring are arranged in the square bolt, and a limiting column located in the lock shell is arranged outside the square bolt.

By adopting the preferred scheme, the specific structures of the driving deflector rod and the push sheet can be further optimized. In addition, the specific structure of the lock tongue is the same as the patent CN201520020109.1, and the tongue hook can automatically extend or retract.

Preferably, the elastic means includes an elastic member, and a seating post on which the elastic member is seated; the elastic piece is a strip-shaped spring piece, at least one mounting column is arranged, and the mounting column is supported on the push piece and is fixedly connected with the push piece; the driving deflector rod is provided with a first boss contacted with the spring piece; one end of the spring piece is fixedly connected or clamped with the mounting column, and the contact point of the first boss and the spring piece is close to the other end of the spring piece;

the elastic device has: under the action of external force, when the mechanical lock is in an unlocking state, the first boss of the driving lever presses the spring piece and enables the spring piece to generate a first state of resilience force;

on the basis of the first state, when the external force is removed, the spring piece rebounds and acts on the first boss, and then the driving deflector rod pushes the push piece and enables the lock tongue to be popped out.

By adopting the preferred scheme, the structure of the elastic device can be further optimized, and the main state of the elastic device can be clarified; the first state and the second state of the elastic device respectively correspond to the unlocking state and the automatic locking state of the mechanical lock.

More preferably, it has two to settle the post, the one end of spring leaf extends there is the flexion, the flexion is the "S" font that constitutes by two arcs are bent, the arc is bent and is settled the post one-to-one, it is located the curved interior of corresponding arc respectively to settle the post, the flexion forms the joint structure with settling the post.

With this preferred solution, the structure of the elastic means can be further optimized.

Preferably, the resilient means comprises a return spring and a mounting post; the mounting column is supported on the lock shell and fixedly connected with the lock shell, and the rotary spring is arranged on the mounting column; one end of the rotary spring is abutted against one end of the spring bolt close to the push sheet, and the other end of the rotary spring is abutted against the lock shell or an abutting column arranged on the lock shell;

the elastic device has: under the action of external force, when the mechanical lock is in an unlocking state, the lock tongue presses the rotary spring and enables the rotary spring to generate a first state of resilience force;

on the basis of the first state, when the external force is removed, the rotary spring rebounds and acts on the lock tongue, and then the lock tongue is in a second state of popping up.

With this preferred solution, the elastic means can be further optimized in another configuration and its main state is defined; the first state and the second state of the elastic device respectively correspond to the unlocking state and the automatic locking state of the mechanical lock.

Preferably, the escape thumb wheel and the escape deflector rod are respectively provided with a fixed rotation axis, and the escape thumb wheel and the escape deflector rod respectively form a rotation pair with axial constraint with the lock shell at the rotation axis; the escape shifting wheel is provided with a bulge, and the driving shifting lever is provided with a second boss; one end of the escape deflector rod is positioned on one side of the rotation axis of the escape deflector rod and is hinged with the bulge, and the other end of the escape deflector rod is positioned on the other side of the rotation axis of the escape deflector rod and is contacted with the second boss;

the escape transmission mechanism comprises: the escape handle drives the escape shifting wheel to rotate under the action of external force, the escape shifting wheel acts on one end of the escape shifting rod to enable the escape shifting rod to rotate, and the other end of the escape shifting rod acts on the second boss to enable the driving shifting rod to pull the push piece and enable the lock tongue to retract.

By adopting the preferred scheme, the structure of the escape transmission mechanism can be further optimized, and the main state of the escape transmission mechanism can be determined; the escape action state of the escape transmission mechanism corresponds to the escape state of the mechanical lock.

More preferably, the escape handle has a rotation axis coinciding with a rotation axis of the escape thumb wheel; the escape deflector rod is S-shaped; the escape thumb wheel is fixedly provided with a second hollow spline rod at the rotation axis of the escape thumb wheel, and the second hollow spline rod is rotationally connected with the lock shell; and the rotation axis of the escape handle is fixedly connected with the second hollow spline rod through a spline.

By adopting the preferable scheme, the structure of the escape transmission mechanism can be further optimized.

Compared with the prior art, the utility model discloses simple structure can open the lock through the handle in the door under the special circumstances to realize the function of fleing.

Drawings

The present invention will be further described with reference to the accompanying drawings.

Fig. 1 is an exploded view of embodiment 1 of the present invention.

Fig. 2 and 3 are partially enlarged views of fig. 1.

Fig. 4 is a schematic view of the internal structure of embodiment 1 of the present invention.

Fig. 5 is a schematic diagram of an implementation process of embodiment 1 of the present invention.

Fig. 6 is a schematic diagram of the structure and implementation process of embodiment 2 of the present invention.

Detailed Description

Example 1

As shown in fig. 1 to 4, the mechanical lock with an escape function of the present embodiment includes a lock case 01, a transmission mechanism and a bolt 02 are disposed in the lock case 01, and a through hole 03 for the bolt 02 to enter and exit is disposed on a side surface of the lock case 01; the transmission mechanism comprises a lock tongue transmission mechanism and an escape transmission mechanism; the lock tongue transmission mechanism comprises a driving shift lever 04 and a push piece 05, and the driving shift lever 04 is in transmission connection with the lock tongue 02 through the push piece 05; an elastic device which enables the bolt 02 to automatically pop out through a bolt transmission mechanism is also arranged in the lock shell 01; the escape transmission mechanism comprises an escape thumb wheel 06 and an escape poking rod 07, an escape handle 08 is arranged outside the lock shell 01, the escape handle 08 is fixedly connected with the escape thumb wheel 06, and the escape thumb wheel 06 is in transmission connection with the driving poking rod 04 through the escape poking rod 07.

The mechanical lock of the embodiment has the following specific states:

(1) under the action of external force, the driving lever 04 is driven to push the push piece 05 to enable the bolt 02 to be ejected out to be in a locking state.

(2) And the driving lever 04 is driven under the action of external force to pull the push piece 05 to enable the bolt 02 to retract to an unlocking state.

(3) On the basis of the unlocking state, when the external force is removed, the elastic device acts on the driving shift lever 04 to push the push piece 05 to enable the bolt 02 to be ejected out, and the automatic locking state is realized.

(4) Under the action of external force, the escape handle 08 drives the escape thumb wheel 06 to rotate, and then the escape driving lever 07 is driven to act on the driving lever 04 to pull the push piece 05 to enable the lock tongue 02 to retract.

In particular, the driver 04 has a fixed axis of rotation, and the driver 04 forms a revolute pair with axial constraint with the lock housing 01 at its axis of rotation; one end of the push piece 05 is fixedly connected with the bolt 02, the other end of the push piece 05 is provided with a groove 09, and the tail end of the driving deflector rod 04 extends into the groove 09; the push piece 05 and the lock shell 01 form a moving pair, and the moving direction of the moving pair is the same as that of the bolt 02; the direction of movement of the driver rod 04 and the direction of movement of the plunger 05 lie in the same plane or in different planes parallel to one another.

The driving deflector rod 04 is fixedly provided with a first hollow spline rod 10 at the rotating axis, and the first hollow spline rod 10 is rotationally connected with the lock shell 01; the push sheet 05 is provided with a pin-shaped component 11, the lock shell 01 is provided with a limiting hole 12 for the pin-shaped component 11 to slide, and the pin-shaped component 11 is limited in the limiting hole 12; the lock tongue 02 is a square tongue, a tongue hook 13 and a return spring 14 are arranged in the square tongue, and a limiting column 15 positioned in the lock shell 01 is arranged outside the square tongue. Thus, an external wrench or lock cylinder may be secured to the first hollow splined shaft 10 via splines to control the movement of the driver 04.

Specifically, the elastic means includes an elastic member, and a mounting post 17 on which the elastic member is mounted; the elastic piece is a strip-shaped spring piece 16, at least one mounting column 17 is arranged, the mounting column 17 is supported on the push piece 05, and the mounting column 17 is fixedly connected with the push piece 05; the driver lever 04 has a first boss 18 in contact with the spring plate 16; one end of the spring plate 16 is fixedly connected or clamped with the mounting column 17, and the contact point of the first boss 18 and the spring plate 16 is close to the other end of the spring plate 16. The elastic means have the following specific states: (1) under the action of external force, when the mechanical lock is in an unlocking state, the first boss 18 of the driving lever 04 presses the spring piece 16 and generates a first state of resilience to the spring piece 16. (2) On the basis of the first state, when the external force is removed, the spring piece 16 rebounds and acts on the first boss 18, and then the driving lever 04 pushes the push piece 05 and the lock tongue 02 is ejected.

Settle post 17 has two, and the one end of spring leaf 16 extends has the flexion, and the flexion is "S" font that constitutes by two curved archs, and the curved and of settling post 17 one-to-one, settles post 17 and lie in the curved interior of the curved of arc that corresponds respectively, and the flexion forms the joint structure with settling post 17.

Specifically, the escape thumb wheel 06 and the escape thumb lever 07 respectively have fixed rotation axes, and the escape thumb wheel 06 and the escape thumb lever 07 respectively form a rotation pair with axial constraint with the lock case 01 at the rotation axes; the escape poking wheel 06 is provided with a bulge 19, and the driving poking rod 04 is provided with a second boss 20; one end of the escape driving lever 07 is located on one side of the rotation axis and hinged to the protrusion 19, and the other end of the escape driving lever 07 is located on the other side of the rotation axis and contacts with the second boss 20. The escape transmission mechanism comprises: under the action of external force, the escape handle 08 drives the escape shifting wheel 06 to rotate, the escape shifting wheel 06 acts on one end of the escape shifting rod 07 to rotate the escape shifting rod 07, and the other end of the escape shifting rod 07 acts on the second boss 20 to drive the shifting rod 04 to pull the push piece 05 and retract the lock tongue 02.

The escape handle 08 has a rotation axis coinciding with the rotation axis of the escape thumb wheel 06; the escape deflector rod 07 is in an S shape; the escape thumb wheel 06 is fixedly provided with a second hollow spline rod 21 at the rotation axis, and the second hollow spline rod 21 is rotationally connected with the lock shell 01; the rotation axis of the escape handle 08 is fixedly connected with the second hollow spline rod 21 through splines.

The application process of this embodiment is as follows:

as shown in fig. 5, the mechanical lock locks the door in a locked state, and if a user is trapped in the door and the escape handle 08 is rotated by the user, the bolt 02 is retracted into the lock case 01 and finally unlocked, and then the door is opened for escape.

Example 2

The basic structure of the mechanical lock with the escape function in the embodiment is the same as that in the embodiment 1, except that: as shown in fig. 6, the elastic means includes a swiveling spring 29 and a mounting post 30; the mounting column 30 is supported on the lock shell 01 and fixedly connected with the lock shell 01, and the rotary spring 29 is arranged on the mounting column 30; one end of the rotary spring 29 abuts against one end of the bolt 02 close to the push plate 05, and the other end of the rotary spring 29 abuts against an abutting column 31 (or against the lock shell 01) of the lock shell 01.

The elastic device has the following specific states: (1) under the action of external force, when the mechanical lock is in an unlocked state, the bolt 02 presses the rotary spring 29 and enables the rotary spring 29 to generate a first state of resilience force;

(2) and on the basis of the first state, when the external force is removed, the rotary spring 29 rebounds and acts on the lock tongue 02, and then the lock tongue 02 is ejected.

It should be noted that the mechanical lock of the present invention is further provided with some other limiting posts, so that the whole lock can be better used, but these all belong to the prior art, and can be easily understood and realized by those skilled in the art, and are not the key technical features of the present invention, and therefore, the description is omitted herein.

In addition to the above embodiments, the present invention may have other embodiments. All the technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope claimed by the present invention.

Claims

1. The mechanical lock with the escape function comprises a lock shell, wherein a transmission mechanism and a lock tongue are arranged in the lock shell, and a through hole for the lock tongue to enter and exit is formed in the side surface of the lock shell; the escape device is characterized in that the transmission mechanism comprises a lock tongue transmission mechanism and an escape transmission mechanism; the lock tongue transmission mechanism comprises a driving shift lever and a push piece, and the driving shift lever is in transmission connection with the lock tongue through the push piece; an elastic device which enables the spring bolt to automatically pop out through a spring bolt transmission mechanism is also arranged in the lock shell; the escape driving mechanism comprises an escape shifting wheel and an escape shifting rod, an escape handle is arranged outside the lock shell and fixedly connected with the escape shifting wheel, and the escape shifting wheel is in driving connection with the drive shifting rod through the escape shifting rod.

2. The mechanical lock of claim 1, wherein the mechanical lock has:

3. A mechanical lock according to claim 2, wherein the driver has a fixed axis of rotation and the driver forms an axially constrained revolute pair with the lock housing at its axis of rotation; one end of the push piece is fixedly connected with the lock tongue, the other end of the push piece is provided with a groove, and the tail end of the driving deflector rod extends into the groove; the push piece and the lock shell form a moving pair, and the moving direction of the moving pair is the same as that of the lock tongue; the moving directions of the driving deflector rod and the pushing piece are positioned in the same plane or in different planes parallel to each other.

4. The mechanical lock of claim 3, wherein the driver lever has a first hollow splined shaft secured to the driver lever at an axis of rotation thereof, the first hollow splined shaft being rotatably connected to the housing; the push sheet is provided with a pin-shaped component, the lock shell is provided with a limiting hole for the pin-shaped component to slide, and the pin-shaped component is limited in the limiting hole.

5. The mechanical lock of claim 4, wherein the locking tongue is a square tongue, a tongue hook and a return spring are arranged in the square tongue, and a limiting column positioned in the lock shell is arranged outside the square tongue.

6. The mechanical lock of claim 2, wherein said resilient means comprises a resilient member and a mounting post for mounting the resilient member; the elastic piece is a strip-shaped spring piece, at least one mounting column is arranged, and the mounting column is supported on the push piece and is fixedly connected with the push piece; the driving deflector rod is provided with a first boss contacted with the spring piece; one end of the spring piece is fixedly connected or clamped with the mounting column, and the contact point of the first boss and the spring piece is close to the other end of the spring piece;

7. The mechanical lock of claim 6, wherein there are two of the positioning posts, and a bending portion extends from one end of the spring plate, the bending portion is formed in an "S" shape formed by two curved portions, the curved portions correspond to the positioning posts one to one, the positioning posts are respectively located in the corresponding curved portions, and the bending portion and the positioning posts form a clamping structure.

8. A mechanical lock as claimed in claim 2, wherein said resilient means comprises a return spring and a mounting post; the mounting column is supported on the lock shell and fixedly connected with the lock shell, and the rotary spring is arranged on the mounting column; one end of the rotary spring is abutted against one end of the spring bolt close to the push sheet, and the other end of the rotary spring is abutted against the lock shell or an abutting column arranged on the lock shell;

9. The mechanical lock of claim 2, wherein the escape wheel and the escape lever each have a fixed rotational axis, and the escape wheel and the escape lever each form a rotation pair with axial restraint with the lock housing at the rotational axis; the escape shifting wheel is provided with a bulge, and the driving shifting lever is provided with a second boss; one end of the escape deflector rod is positioned on one side of the rotation axis of the escape deflector rod and is hinged with the bulge, and the other end of the escape deflector rod is positioned on the other side of the rotation axis of the escape deflector rod and is contacted with the second boss;

10. The mechanical lock of claim 9, wherein the escape handle has an axis of rotation that coincides with an axis of rotation of the escape wheel; the escape deflector rod is S-shaped; the escape thumb wheel is fixedly provided with a second hollow spline rod at the rotation axis of the escape thumb wheel, and the second hollow spline rod is rotationally connected with the lock shell; and the rotation axis of the escape handle is fixedly connected with the second hollow spline rod through a spline.