CN112392328A

CN112392328A - Push rod type three-lock two-opening lockset and equipment with lock

Info

Publication number: CN112392328A
Application number: CN201910750861.4A
Authority: CN
Inventors: 马铮; 周晔; 陈家贤; 罗北雄
Original assignee: Sgsg Science & Technology Co ltd Zhuhai
Current assignee: Sgsg Science & Technology Co ltd Zhuhai
Priority date: 2019-08-14
Filing date: 2019-08-14
Publication date: 2021-02-23
Anticipated expiration: 2039-08-14
Also published as: CN112392328B

Abstract

The utility model discloses a push-down three locks two division of tool to lock and area lock equipment belongs to tool to lock technical field. The lockset comprises a driving component (25), a base (2), three locksets (21), a cantilever type transmission component (41) and three push rod components (18). Three tool to lock (21) are fixed to be set up on base (2), cantilever type transmission assembly (41) have three free end, the first end one-to-one ground and the touching of three free end of three push rod assembly (18), the second end one-to-one ground of three push rod assembly (18) sets up in the spring bolt position of three tool to lock (21), make when arbitrary two in three tool to lock (21) are in the position of unblanking and cantilever type transmission assembly (41) are driven by drive assembly (25) and move along setting for the direction, two push rod assembly (18) that correspond can move along setting for the direction. The belt lock device comprises the lock. The unlocking mode is more convenient.

Description

Push rod type three-lock two-opening lockset and equipment with lock

Technical Field

The invention relates to the technical field of locks, in particular to a push rod type three-lock two-opening lock and a device with a lock.

Background

The lock in the prior art can be unlocked by only one key, and the safety factor is lower. In order to increase the safety factor of the lock, in the existing products of financial security and protection and the like, a three-lock two-open lock is adopted on a vault door and a safe door device, and part of electronic locks are not suitable for being unlocked by mechanical driving under the condition that the lock tongue of the three-lock two-open lock of the door can not provide driving force. The existing lockset with a larger ratio, such as a vault door, a safe deposit cabinet door and the like, has the defects of insufficient unlocking force if the existing lockset is unlocked only by electric drive because of heavier self weight, so that the existing lockset cannot be unlocked.

Disclosure of Invention

In view of this, the invention provides a push rod type three-lock two-way lock and a device with a lock, which are more convenient in unlocking mode and more practical.

In order to achieve the first object, the technical scheme of the push rod type three-lock two-open lock provided by the invention is as follows:

the invention provides a push rod type three-lock two-unlocking lock which comprises a driving component (25), a base (2), three locks (21), a cantilever type transmission component (41) and three push rod components (18),

the three locksets (21) are fixedly arranged on the base (2),

the cantilevered transmission assembly (41) has three free ends,

the first ends of the three push rod assemblies (18) are contacted with the three free ends in a one-to-one correspondence,

the second ends of the three push rod assemblies (18) are arranged at the bolt positions of the three locks (21) in a one-to-one correspondence mode, so that when any two of the three locks (21) are located at the unlocking positions and the cantilever type transmission assembly (41) is driven by the driving assembly (25) to move along a set direction, the corresponding two push rod assemblies (18) can move along the set direction.

The push rod type three-lock two-open lockset provided by the invention can be further realized by adopting the following technical measures.

Preferably, the cantilever type transmission assembly (41) comprises a first cantilever (11), a second cantilever (13), a first rocker (24) and a second rocker (16),

the middle part of the first rocker (24) is hinged at the first end of the first cantilever (11),

the middle part of the second rocker (16) is hinged at the first end of the second cantilever (13),

the second end of the first cantilever (11) touches the movable end of the driving component (25), and the second cantilever (13) touches the first end of the first rocker (24), so that the second end of the first rocker (24), the first end of the second rocker (16), and the second end of the second rocker (16) form the three free ends respectively.

Preferably, the driving component (25) comprises a driving part (6) and a driven part (10),

the driving part (6) and the driven part (10) form a cam mechanism,

the second end of the first cantilever (11) is contacted with the movable end of the driven part (10).

Preferably, the driving member (6) is hinged to the base (2), the driven member (10) is hinged to the base (2), and a first free end of the driving member (6) is in contact with a second free end of the driven member (10).

Preferably, the push rod component (18) comprises a bearing seat (17), a first rod body (27), a second rod body (26), a first elastic component (19) and a lock pin (28),

a moving pair is formed between the first rod body (27) and the second rod body (26),

the second rod (26) is provided with a free end (20) outside the bearing seat (17),

the first elastic component (19) is sleeved on the second rod body (26) and is stopped by the bearing seat (17) inside;

the locking pin (28) is stopped at the bottom outer side of the bearing seat (17).

Preferably, the push rod component (18) comprises a prying rod body (38) and a prying wane (39),

the first end of the prying rod body (38) is contacted with the free end of the cantilever type transmission component,

the second end of the prying rod body (38) is fixedly connected to the first end of the prying rocker (39),

the second ends of the prying warping plates (39) are arranged at the bolt positions of the three locks (21) in a one-to-one correspondence manner;

the prying rocker (39) is hinged to the base (2) through the middle part thereof.

Preferably, the push rod type three-lock two-way lock further comprises a protection block (3),

the protection block (3) is fixedly connected to the base (2), a first boss (31) is arranged on one side, close to the driving part (6), of the protection block (3), a second boss (32) is formed at the diameter-variable position of the driving part (6), and after the driving part (6) rotates for a set angle, the position of the first boss (31) corresponds to the position of the second boss (32);

the length of a limiting hole (7) of a rotating shaft (8) of the driving piece (6) in the horizontal direction is larger than the diameter of the rotating shaft (8) of the driving piece (6), so that when the driving piece (6) moves to a limit position close to the protection block (3) along the horizontal direction, the rotation of the driving piece (6) is stopped by the embedding of the first boss (31) and the second boss (32).

Preferably, the push rod type three-lock two-open lock further comprises a second elastic component (35),

second elastic component (35) set up in the inner wall of spacing hole (7) with between rotation axis (8) of initiative piece (6), make when initiative piece (6) pressurized to when the direction motion of protection piece (3), second elastic component (35) can to the rotation axis (8) of initiative piece (6) provide the power of the strength of the contrary stubborn.

Preferably, the contact position of the driven part (10) and the driving part (6) is a platform (37), so that the driving part (6) and the driven part (10) always have a contact point through the platform (37) in the process that the driving part (6) moves in the horizontal direction.

In order to achieve the second object, the technical solution of the apparatus with lock provided by the present invention is as follows:

the equipment with the lock comprises the push rod type three-lock two-opening lock.

When the push rod type three-lock two-unlocking lock and the equipment with the lock provided by the embodiment of the invention are applied, the driving component 25 is pushed leftwards, the first cantilever 11 is pushed by the driving component 25 and then acts on the first rocker 24, and the second cantilever 13 further drives the second rocker 16 to move as the first end of the first rocker 24 is contacted with the second cantilever 13, wherein the second end of the first rocker 24, the first end of the second rocker 16 and the second end of the second rocker 16 are respectively contacted with the first ends of the three push rod components 18 in a one-to-one correspondence manner, so that under the condition, when 2 of the three locks are in the unlocking position, the pushing force applied to the driving component 25 by the force application block 1 can be used for realizing smooth unlocking without overcoming the self gravity of the lock, and the required unlocking acting force is smaller. Compared with the technical scheme of the three-lock two-way lock in the prior art, the push rod type three-lock two-way lock provided by the embodiment of the invention is more convenient in unlocking mode.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic structural view of a push-rod type three-lock two-way lock according to an embodiment of the present invention when locking tongues of three locks are in a locked position;

fig. 2 is a schematic structural diagram of a push-rod type three-lock two-unlocking lock according to an embodiment of the present invention, when the lock tongues of the first lock and the second lock are in the unlocking position and the lock tongue of the third lock is in the locking position, and the lock is in the unlocking state;

FIG. 3 is a schematic view of a push-rod type three-lock two-way lock according to an embodiment of the present invention;

fig. 4 is a schematic structural diagram of a push rod assembly applied to a push rod type three-lock two-way lock according to an embodiment of the present invention;

fig. 5 is a schematic structural view of a push-rod type three-lock two-way lock according to an embodiment of the present invention, in which a protection block and a driving member applied thereto are in a free state;

fig. 6 is a schematic structural diagram of a protection block and a driving member applied to a push-rod type three-lock two-way lock according to a scheme of the present invention in a protection state;

fig. 7 is a schematic structural view of a push-rod type three-lock two-way lock according to a second embodiment of the present invention, when the locking tongues of the three locks are in the locked position;

fig. 8 is a schematic structural view of a push rod assembly applied to a push rod type three-lock two-way lock according to a second embodiment of the present invention.

Detailed Description

The push rod type three-lock two-unlocking lockset and the equipment with the lock are provided for solving the problems in the prior art, and the unlocking mode is more convenient and more practical.

To further illustrate the technical means and effects of the present invention adopted to achieve the predetermined objects, the following detailed description of the embodiments, structures, features and effects of the push rod type three-lock two-way lock and the equipment with lock according to the present invention will be provided with reference to the accompanying drawings and preferred embodiments. In the following description, different "one embodiment" or "an embodiment" refers to not necessarily the same embodiment. Furthermore, the features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, with the specific understanding that: both a and B may be included, a may be present alone, or B may be present alone, and any of the three cases can be provided.

In the embodiments, the left and right directions are both for the description of the drawings in the embodiments, and are not limited to the specific implementation.

Example one

Referring to fig. 1 to 6, the push rod type three-lock two-way lock according to the first embodiment of the present invention includes a driving assembly 25, a base 2, three locks 21, a cantilever transmission assembly 41, and three push rods 18. Three locks 21 are fixedly arranged on the base 2. The cantilever type transmission assembly 41 has three free ends, the first ends of the three push rod assemblies 18 touch the three free ends in a one-to-one correspondence manner, and the second ends of the three push rod assemblies 18 are disposed at the locking positions of the three locks 21 in a one-to-one correspondence manner, so that when any two of the three locks 21 are in the unlocking position and the cantilever type transmission assembly 41 is driven by the driving assembly 25 to move along the set direction, the corresponding two push rod assemblies 18 can move along the set direction.

In this embodiment, cantilevered transmission assembly 41 includes first cantilever 11, second cantilever 13, first rocker 24, and second rocker 16. Wherein the middle part of the first rocker 24 is hinged to the first end of the first cantilever 11 and the middle part of the second rocker 16 is hinged to the first end of the second cantilever 13. The second end of the first cantilever 11 touches the moving end of the driving component 25, and the second cantilever 13 touches the first end of the first rocker 24, so that the second end of the first rocker 24, the first end of the second rocker 16, and the second end of the second rocker 16 form free ends, respectively.

In this embodiment, a first gap is formed between the first lock 21a and the second lock 21b, the first bolt 23a of the first lock 21a is disposed in the first gap, a second gap is formed between the second lock 21b and the third lock 21c, and the second bolt 23b of the second lock 21b and the third bolt 23c of the third lock 21c are disposed in the second gap. When the first lock 21a, the second lock 21b and the third lock 21c are all in the locked position, and the first push rod assembly 18a, the second push rod assembly 18b and the third push rod assembly 18c all move to the lower limit position, the first push rod assembly 18a abuts against the upper end of the first lock tongue 23a, the second push rod assembly 18b abuts against the upper end of the second lock tongue 23b, and the third push rod assembly 18c abuts against the upper end of the third lock tongue 23c, at this time, due to the blocking of the first lock tongue 23a, the second lock tongue 23b and the third lock tongue 23c, the first push rod assembly 18a, the second push rod assembly 18b and the third push rod assembly 18c cannot move downwards continuously, and at this time, the third lock provided by the embodiment of the present invention is in the locked state. If the push rod type three-lock two-unlocking lock provided by the embodiment of the invention can be unlocked, the push rod type three-lock two-unlocking lock mainly adopts the following three modes:

the first mode is as follows: the first bolt 23a of the first lock 21a retracts to be in the unlocked position, the second bolt 23b of the second lock 21b retracts to be in the unlocked position, at this time, when the driving assembly 25 receives a horizontal leftward acting force from the force application block 1, the first cantilever 11 moves vertically downward, and at the same time, due to the prevention of the third bolt 23c of the third lock 21c on the third push rod assembly 18c, the first rocker 24 rotates counterclockwise with the hinge point 12 between the first rocker 24 and the first cantilever 11 as a rotation center, pushing the second cantilever 13 to move downward, at this time, due to the first bolt 23a of the first lock 21a being in the retracted state, the second bolt 23b of the second lock 21b also being in the retracted state, while the second cantilever 13 moves downward, the second rocker 16 moves downward as a whole, pushing the first push rod assembly 18a and the second push rod assembly 18b to move downward to unlock.

The second mode is as follows: the first bolt 23a of the first lock 21a retracts to be in the unlocked position, the third bolt 23c of the third lock 21c retracts to be in the unlocked position, at this time, when the driving assembly 25 receives a horizontal leftward acting force from the force application block 1, the first cantilever 11 moves vertically downward, the first rocker 24 moves downward integrally to push the second cantilever 13 to move downward, at this time, due to the stop of the second bolt 21c of the second lock 21b on the second push rod assembly 18b, while the second cantilever 13 moves downward, the second rocker 16 rotates counterclockwise at the rotation center of the hinge point 15 between the second rocker 16 and the second cantilever 13, at this time, since the first bolt 23a of the first lock 21a is in the retracted state, the third bolt 23c of the third lock 21c is in the retracted state, the first push rod assembly 18a and the third push rod assembly 18c are pushed downward to realize unlocking.

The third mode is as follows: the second bolt 23b of the second lock 21b retracts to be in the unlocked position, the third bolt 23c of the third lock 21c retracts to be in the unlocked position, at this time, when the driving assembly 25 receives a horizontal leftward acting force from the force application block 1, the first cantilever 11 moves vertically downward, the first rocker 24 moves downward integrally to push the second cantilever 13 to move downward, at this time, due to the stopping of the first bolt 23a of the first lock 21a on the first push rod assembly 18a, while the second cantilever 13 moves downward, the second rocker 16 rotates clockwise with the hinge point 15 position rotation center between the second rocker and the second cantilever 13, at this time, due to the second bolt 23b of the second lock 21b being in the retracted state, the third bolt 23c of the third lock 21c is in the retracted state, the second push rod assembly 18b and the third push rod assembly 18c are pushed downward to realize unlocking.

Therefore, when the push rod type three-lock two-unlocking lock provided by the embodiment of the invention is applied, the driving assembly 25 is pushed leftwards, the first cantilever 11 is pushed by the driving assembly 25 and then acts on the first rocker 24, and the second cantilever 13 further drives the second rocker 16 to move due to the fact that the first end of the first rocker 24 is contacted with the second cantilever 13, and the second end of the first rocker 24, the first end of the second rocker 16 and the second end of the second rocker 16 are respectively contacted with the first ends of the three push rod assemblies 18 in a one-to-one correspondence manner, in this case, when 2 of the three locks are in the unlocking position, the pushing force applied to the driving assembly 25 by the force application block 1 can be used for realizing smooth unlocking without overcoming the self gravity of the lock, so that the required unlocking acting force is small. Compared with the technical scheme of the three-lock two-way lock in the prior art, the push rod type three-lock two-way lock provided by the embodiment of the invention is more convenient in unlocking mode. In the embodiment, the mechanism for pushing the driving component 25 leftward is the force application block 1 provided by the bolt component, in this case, a special mechanism is not required to be arranged to push the driving component 25 leftward, and the operation mode is simple and convenient.

Wherein the driving assembly 25 comprises a driving member 6 and a driven member 10. The driving member 6 and the driven member 10 constitute a cam mechanism, and the second end of the first suspension arm 11 contacts with the moving end of the driven member 10. In this case, according to the motion characteristics of the cam mechanism, during the rotation of the driving member 6, the driven member 10 can perform a linear motion in the vertical direction to achieve the action of pushing the first suspension arm 11 downward in the numerical direction. In addition, the driving assembly 25 may be in other structures as will occur to those skilled in the art, as long as the driving assembly 25 can provide the force for moving the first suspension arm 11 downward, for example, a rod capable of moving the first suspension arm 11 downward by applying a downward force, etc.

The driving part 6 is hinged to the base 2, the driven part 10 is hinged to the base 2, and a first free end of the driving part 6 touches a second free end of the driven part 10. In this embodiment, be provided with L shape connecting piece 4 on base 2, wherein, drive 6 is handed over in the horizontal part of L shape connecting piece 4, and follower 10 articulates in the vertical portion of L shape connecting piece 4, and under this condition, when processing L shape connecting piece 4 and the articulated shaft hole of drive 6 and follower 10, only need to process L shape connecting piece 4 can, and need not to process whole base 2, it is more convenient to process.

The driving member 6 is semicircular, a first free end is formed at an inflection point of the driving member, the driven member 10 is rod-shaped, and a second free end is formed at an end point of the driven member. In this case, since the shapes and structures of the driving member 6 and the driven member 10 are simple, not only the processing manner is simple, but also the cost is low.

The push rod assembly 18 includes a bearing seat 17, a first rod 27, a second rod 26, a first elastic member 19, and a lock pin 28. A sliding pair is formed between the first rod 27 and the second rod 26, the second rod 26 has a free end 20 at the outside of the bearing seat 17, and the first elastic member 19 is sleeved on the second rod 26 and is stopped inside by the bearing seat 17; the locking pin 28 is stopped outside the bottom of the carrier 17. In this embodiment, the bearing seat 17 starts to have a first through hole 29 and a second through hole 30 at corresponding positions, the first rod 27 passes through the first through hole 29, the second rod 26 passes through the second through hole 30, and a free end 20 is left outside the bearing seat 17, a sliding pair is formed between the first rod 27 and the second rod 26, the first elastic member 19 is sleeved on the second rod 26, an outer diameter of the first elastic member 19 is smaller than an outer diameter of the first rod 27, and an outer diameter of the first elastic member 19 is larger than a diameter of the second through hole 30. The locking pin 28 has at least one radial dimension that is greater than the diameter of the second through hole 30. In this case, when the push rod assembly 18 is pushed downward, the elastic member 19 can provide a cushion with a very strong force, so that the operator feels a reaction force more smoothly during the unlocking action. In addition to this, the push rod assembly 18 may also comprise only a one-piece push rod, in which case its function is also fulfilled, only when the unlocking action is performed, the operation is not smooth, since there is no damping provided by the elastic member 19.

Wherein, push rod type three locks two division of tool to lock still includes protection piece 3. The protection block 3 is fixedly connected to the base 2, a first boss 31 is arranged on one side, close to the driving part 6, of the protection block 3, a second boss 32 is formed at the reducing position of the driving part 6, and after the driving part 6 rotates for a set angle, the position of the first boss 31 corresponds to the position of the second boss 32. The length of the limiting hole 7 of the rotating shaft 8 of the driving member 6 in the horizontal direction is greater than the diameter of the rotating shaft 8 of the driving member 6, so that when the driving member 6 moves to a limit position in the horizontal direction to approach the protective block 3, the rotation of the driving member 6 is stopped by the engagement of the first boss 31 and the second boss 32. In this case, when the driving force applied to the driving member 6 in the left direction by the biasing block 1 is too large, the driving member 6 moves in a direction approaching the protective block 3, and in this case, when the rotational force is continuously applied to the driving member 6, the driven member 10 cannot be moved downward by the force due to the rotation of the driving member 6 being stopped by the engagement of the first boss 31 and the second boss 32, and therefore, the transmission of the force to the push rod type transmission assembly can be prevented, and thus, illegal unlocking can be prevented.

The push rod type three-lock two-open lock provided by the first embodiment of the invention further comprises a second elastic part 35. The second elastic component 35 is disposed between the inner wall of the limiting hole 7 and the rotating shaft 8 of the active part 6, so that when the active part 6 is pressed to move in the direction of the protection block 3, the second elastic component 35 can provide a counter stiffness acting force to the rotating shaft 8 of the active part 6. In general, due to the stiff acting force provided by the second elastic component 35, the driving element 6 can be located at a normal position, and at this time, when the driving element 6 receives the counterclockwise rotating acting force, the driven element 10 can be moved downward to perform an unlocking action; when the acting force from the force application block 1 is so large that the active part 6 moves to the left limit position by overcoming the stiff acting force from the second elastic part 35, the counterclockwise rotating acting force is continuously applied to the active part 6, and the illegal unlocking is prevented by the embedded stop of the first boss 31 and the second boss 32, once the large acting force from the force application block 1 disappears, the active part 6 can be easily reset by means of the recovery of the shape of the second elastic part 35.

The contact position between the driven member 10 and the driving member 6 is a platform 37, so that the driving member 6 and the driven member 10 always have a contact point through the platform 37 in the process that the driving member 6 moves in the horizontal direction. In this case, even if the driving member 6 has a displacement relative to the driven member 10 due to the leftward force from the force application block 1, the driving member 6 and the driven member 10 do not get disengaged from each other.

In this embodiment, the push-rod type three-lock two-unlocking-lock further includes a first limiting member 14 and a second limiting member 22. The first limiting member 14 and the second limiting member 22 are both disposed along a setting direction, and the second tilting plate 16 forms a moving pair with the first limiting member 14 and the second limiting member 22. In this case, the movement of first and

second rockers

22 and 16 can be limited to avoid difficulty in unlocking or resetting the lock due to movement beyond a predetermined range.

Example two

Referring to fig. 7 and 8, the difference between the push-rod type three-lock two-way lock according to the first embodiment of the present invention and the push-rod type three-lock two-way lock according to the second embodiment of the present invention is that the push-rod assembly 18 includes a levering rod 38 and a levering rocker 39. The first end of the prying rod body 38 is contacted with the free end of the cantilever type transmission assembly, the second end of the prying rod body 38 is fixedly connected to the first end of the prying rocker 39, and the second ends of the prying rockers 39 are arranged at the bolt positions of the three locks 21 in a one-to-one correspondence manner; the levering rocker 39 is hinged to the base 2 through its middle. In this embodiment, the prying rod 38 includes a first prying rod 38a, a second prying rod 38b, and a third prying rod 38 c. The levered paddle 39 includes a first levered paddle 39a, a second levered paddle 39b, and a third levered paddle 39 c. The first end of the first levering lever 38a contacts with the first end of the second rocker 16, the second end of the first levering lever 38a is fixedly connected to the first end of the first levering rocker 39a, and the second end of the first levering rocker 39a is disposed at the position of the lock tongue 23a of the first lock 21 a; the first levering paddle 39a is hinged to the base by a hinge shaft 40 a. A first end of the second levering rod 38b contacts with a first end of the second rocker 16, a second end of the second levering rod 38b is fixedly connected to a first end of the second levering rocker 39b, and a second end of the second levering rocker 39b is disposed at the position of the lock tongue 23b of the first lock 21 b; the second levering paddle 39b is hinged to the base by a hinge shaft 40 b. The first end of the third levering rod 38c contacts the first end of the second rocker 16, the second end of the third levering rod 38c is fixedly connected to the first end of the first levering rocker 39c, and the second end of the third levering rocker 39c is disposed at the position of the lock tongue 23c of the first lock 21 c; the third levering paddle 39c is hinged to the base by a hinge shaft 40 c.

Under the condition of the second scheme of the embodiment of the invention, when the first cantilever 11 is pressed to move downwards, the push rod assembly 18 can utilize the lever principle, and when the lock tongues 23 of any two locks 21 are in the unlocking position, the second ends of the corresponding two levering tilting plates 39 move to the corresponding lock tongues 23 to realize unlocking. The specific analysis method is similar to that of the push-rod type three-lock two-open lock provided in the first embodiment of the invention, and is not described herein again.

EXAMPLE III

The device with the lock provided by the third embodiment of the invention comprises the push rod type three-lock two-unlocking lock provided by the first embodiment or the second embodiment of the invention.

When the device with the lock provided by the third embodiment of the present invention is applied, the driving assembly 25 is pushed leftward, the first cantilever 11 is pushed by the driving assembly 25 and then acts on the first rocker 24, and the second cantilever 13 further drives the second rocker 16 to move because the first end of the first rocker 24 contacts the second cantilever 13, and the second end of the first rocker 24, the first end of the second rocker 16, and the second end of the second rocker 16 respectively contact the first ends of the three push rod assemblies 18 in a one-to-one correspondence manner, so that when 2 of the three locks are in the unlocking position, the pushing force applied to the driving assembly 25 by the force application block 1 can be used to smoothly unlock the lock without overcoming the self-gravity of the lock, and therefore, the required unlocking acting force is small. Compared with the technical scheme of the three-lock two-way lock in the prior art, the push rod type three-lock two-way lock provided by the embodiment of the invention is more convenient in unlocking mode. In the embodiment, the mechanism for pushing the driving component 25 leftward is the force application block 1 provided by the bolt component, in this case, a special mechanism is not required to be arranged to push the driving component 25 leftward, and the operation mode is simple and convenient.

While preferred embodiments of the present invention have been described, additional variations and modifications in those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including preferred embodiments and all such alterations and modifications as fall within the scope of the invention.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. A push rod type three-lock two-open lock is characterized by comprising a driving component (25), a base (2), three locks (21), a cantilever type transmission component (41) and three push rod components (18),

the three locksets (21) are fixedly arranged on the base (2),

the cantilevered transmission assembly (41) has three free ends,

2. The push-rod three-lock two-open lock according to claim 1, wherein the cantilevered transmission assembly (41) comprises a first cantilever (11), a second cantilever (13), a first rocker (24), a second rocker (16),

3. Push-rod three-lock two-open lock according to claim 2, characterized in that the drive assembly (25) comprises a driving member (6) and a driven member (10),

the driving part (6) and the driven part (10) form a cam mechanism,

4. A push-rod type three-lock two-open lock according to claim 3, characterized in that said driving member (6) is hinged to said base (2) and said driven member (10) is hinged to said base (2), a first free end of said driving member (6) being in contact with a second free end of said driven member (10).

5. Push-rod type three-lock two-open lock according to claim 1, characterized in that the push-rod assembly (18) comprises a carrier seat (17), a first rod (27), a second rod (26), a first resilient member (19) and a locking pin (28),

6. The push-bar type three-lock two-open lock according to claim 1, wherein the push-bar assembly (18) comprises a pry bar body (38), a pry rocker (39),

7. The push-rod type three-lock two-open lock according to claim 4, further comprising a protection block (3),

8. The push-bar three-lock two-open lock according to claim 7, further comprising a second resilient member (35),

9. The push-rod type three-lock two-open lock according to claim 7, wherein the contact position of the driven member (10) and the driving member (6) is a platform (37), so that the driving member (6) and the driven member (10) always have a contact point by means of the platform (37) in the process of moving the driving member (6) in the horizontal direction.

10. A device with a lock, comprising the push-rod type three-lock two-way lock according to any one of claims 1 to 9.