TWI573922B - Double linkage lock - Google Patents

Description

Double interlocking lock

The present invention relates to a door lock, and more particularly to a security door lock that is actuated by a slanting tongue and an inductive slanting tongue to control the straight tongue to a truly locked state.

The door lock is an indispensable device in daily life. It is installed on the door panel of the building entrance and exit. Generally speaking, the opening and closing action of the door panel at the door frame is performed through the door lock bolt. The door frame is achieved by the expansion and contraction of the mouth piece; even if it is further ensured that when the door lock is locked, the door lock cannot be easily broken or opened by external force, it is necessary to ensure that the bolt is not damaged by any external force or It is the effect that the lock tongue can surely remain in the state of the door lock, ensuring that the door lock is locked.

A prior art door lock, such as the self-locking door lock disclosed in the German patent application DE 10 2006 060 449 (A1), which drives the locking tongue 3 of the door lock through a transmission member 8 (the symbol of the component is a prior art German invention patent specification). The symbol of the component is indicated in the following, and the locking state of the locking tongue 3 is maintained by a resilient control member 5, which is also affected by the action of a tongue 4; however, such a door lock is closed. When the elastic control member 5 and the oblique tongue 4 are unable to retreat into the interior of the door lock, one of the two first retreats the starter lock to drive the transmission member 8, while the other one has not yet actuated, so that the The driving of the transmission member 8 is affected, and the function of subsequently driving the locking tongue 3 to operate and retaining its locking cannot be performed, thereby causing doubts about the life and property safety of the door lock user.

At the same time, a guide lock door lock disclosed in U.S. Patent No. 7,431, 354 B2, which is coupled via an auxiliary sensor tongue 8 and a stopper 11 (the symbol shown is a component symbol indicated in the prior art US patent specification). , the same as the following, to control a guiding transmission member 7, the action of a slanting tongue 3 also affects the guiding transmission member 7, the groove 7e of the guiding transmission member 7 is sleeved on the pin 15 of a locking tongue 13 By the downward movement of the guiding transmission member 7, the locking tongue 13 is actuated and kept locked; however, before the locking tongue 13 is extended, if the guiding transmission member 7 is pushed down by the torsion spring When the pressing force of the pressing force or other external force is hindered, the locking tongue 13 is stopped or cannot be smoothly operated when the extending operation is performed halfway, so that the pin 15 of the locking tongue 13 cannot reach the groove 7e smoothly. The positioning position of the locking tongue 13 can not be smoothly operated, and further, after the locking tongue 13 is interfered by the external force, the locking tongue 13 cannot smoothly move back inside the opening lock, so that the guiding transmission member 7 cannot move downward. Function As a result, the door lock cannot be operated smoothly or locked, which also causes user troubles.

The object of the present invention is to improve the prior art, because the oblique tongue and the elastic sensing member cannot be synchronized and smoothly operated, so that the door lock cannot be locked, and the bolt driving plate is easily blocked by external force, and the locking loss cannot be surely achieved, by the present invention The implementation of the technical means ensures that the oblique tongue and the inductive oblique tongue can simultaneously act synchronously when any external force is obstructed, so that the straight tongue drive plate moves downward, and the straight tongue is not affected by the external force, and the true locking can still be achieved. efficacy.

In order to achieve the above-mentioned creative purpose, the technical means adopted by the present invention is to design a double interlocking lock, which has a lock case, a slant tongue, an induction slant tongue, an induction linkage plate, a tongue, a tongue drive plate and a door lock. a driving body; a first torsion spring, a second torsion spring, a spring and a second locking shell rivet are disposed inside the locking shell, and an erecting portion is formed inside; the inclined tongue, the sensing oblique tongue and the straight The tongue spacing is disposed inside the lock case, and the sensing tongue has a return spring, and one end of the first torsion spring of the lock case abuts against the oblique tongue, and the one end of the return spring of the induction tongue abuts In the erection portion, the slanting tongue and the sensing slanting tongue can extend or retreat into the lock case; the inductive linkage plate is a body, and a round bar is disposed at a center of the induction linkage plate, and the round bar is disposed at one end In the lock case, the opposite ends of the inductive linkage plate respectively correspond to the oblique tongue and the inductive oblique tongue, and can respectively bear the oblique tongue and the induction oblique tongue, and the spring end sleeve of the lock case Provided on the round bar, the inductive linkage plate can be opposite to the The shell adjusts the displacement; the straight tongue has a driving column, and the straight tongue can be driven to extend or retreat into the lock case; the straight tongue drive plate is an elongated piece, the straight tongue drive plate has a limiting groove, a An abutting portion, a driving groove, a top abutting groove and an abutting portion, the abutting portion is located at one end of the straight tongue driving plate, the limiting groove is formed in the long axial direction through the straight tongue driving plate, and Forming a fastening portion at a lower end to form a fastening portion, the driving groove extending from the abutting portion toward the other end portion of the straight tongue driving plate, and forming an angle through the long axial direction of the locking shell to form the straight tongue transmission a locating portion is formed in the opposite end portions of the driving groove, and the top abutting groove is formed at a side edge of the straight tongue driving plate, and the bearing portion is bent and formed on one side of the straight tongue driving plate. One end of the second torsion spring of the lock shell abuts against a side of the bearing portion, and the top abutting groove can correspondingly abut the second lock shell rivet and the third lock shell rivet, the circle of the induction linkage plate The other end of the rod is disposed in the limiting groove, and the driving column of the straight tongue is disposed in the driving groove. Door drive can be set against the other side surface of the supporting contact portion and said abutment portion.

The double interlocking lock, wherein the door lock driving group has a locking core rotating shaft and a door turning shaft; the locking shell further has a shell member and a third lock shell rivet, the first torsion spring and the second torsion spring The second lock case rivet and the third lock case rivet are mounted on one side of the case member, and the second lock case rivet and the third lock case rivet are adjacently arranged in a line, and The erecting portion is formed on a side surface of the shell member on which the component is mounted, and the shell member further penetrates to form a mounting hole, a first mounting hole and a second mounting hole, and the mounting hole is elongated a hole, the round bar of the inductive linkage plate is disposed in the mounting hole, the driving groove forms an angle with a long axial direction of the shell member; the straight tongue driving plate further has an auxiliary positioning portion, wherein the auxiliary positioning portion is disposed on the hole The straight tongue drive plate is formed at one end of the side edge of the abutting groove, and the auxiliary positioning portion can correspondingly abut against the third lock case rivet of the lock case; the opposite edge of the lock core shaft protrudes to form a second push a column, the lock shaft is correspondingly mounted on the second mounting hole, and the lock is turned The push rod can be driven against the shell member, and the push rod can be abutted against the abutting portion of the straight tongue drive plate; the door handle shaft has a lever, and the door handle shaft is correspondingly mounted to the first mounting hole, The door handle shaft can be driven to rotate relative to the housing member, the lever being capable of abutting against the other side of the abutment portion of the straight tongue drive plate.

The double interlocking lock further has a round straight tongue, the straight tongue has a body piece and a cylinder, is disposed inside the lock case, and is disposed with respect to the straight tongue; the body piece has a first a straight straight tongue rivet, a second round straight tongue rivet and a third round straight tongue rivet, wherein the first round straight tongue rivet, the second round straight tongue rivet and the third round straight tongue rivet are disposed on the body a side of the piece, the cylinder is fixedly coupled to one side end of the body piece, the first round straight tongue rivet can abut the straight tongue, and the third round straight tongue rivet can abut against the push column of the lock shaft The cylinder can extend or retreat into the lock case; the lock case further has a third torsion spring and a third inner tooth rivet, the third inner tooth rivet is mounted on the case member, and the third torsion spring end The sleeve is sleeved on the second round straight tongue rivet, and the other end is sleeved on the third inner tooth rivet.

The double interlocking lock, the lock housing further has a plate member and a bearing, the spring end of the lock case is sleeved on the round bar of the induction linkage plate, and the other end portion is connected to the plate member; Further having a first inner rivet, a first lock rivet, a second inner rivet and a fourth lock rivet, the shell is a rectangular long piece, the plate is fixedly connected to the case At one of the side edges, the remaining three edges of the shell member are respectively bent to form a surrounding wall, and the plate member is formed to form a plurality of through holes, the first inner tooth rivet, the first lock shell rivet, and the second inner portion. The rivet and the fourth rivet are mounted on the side of the shell member to which the second lock rivet and the third lock rivet are disposed, the first torsion spring is sleeved on the first inner rivet, and the other One end abuts against the surrounding wall, the second torsion spring is sleeved on the second inner rivet, the other end abuts against the first locking shell rivet, and the bearing is sleeved on the fourth locking shell rivet, The inner edge of the bearing abuts against the fourth lock rivet; the one end of the straight tongue protrudes to form an extension portion, and the extension portion penetrates Forming a displacement groove along the longitudinal axis of the straight tongue, the displacement groove is sleeved on the bearing of the lock case, and abuts against the outer edge surface of the bearing, the drive column is mounted on the extension portion; the oblique tongue, the oblique tongue The sensing tongue, the straight tongue and the straight tongue can respectively pass through the through hole of the plate of the lock case to extend or retreat into the plate.

The double interlocking lock, wherein the oblique tongue has a center block of the oblique tongue and two tongue pieces; the inside of the lock case forms two guiding grooves, and the guiding groove is an elongated groove perpendicular to the long axis direction of the locking case The opposite sides of the center block of the oblique tongue respectively protrude to form a protrusion, and the tongue is disposed at opposite side edges of one end portion of the center block of the oblique tongue, and the protrusion is accommodated in the guiding shell The slot is displaceable relative to the guiding slot, and the tongue can extend or retreat into the locking case; one end of the inductive linkage plate corresponds to the central block of the oblique tongue.

The double interlocking lock, wherein the sensing tongue has a tongue block and a tongue; the center of the erection portion of the lock case forms a receiving groove; the tongue block is fixedly mounted at one end of the tongue, the tongue An annular ring portion of the outer edge wall defines a convex ring portion, the return spring is sleeved on the other end of the tongue column, and the other end of the return spring abuts against the convex ring portion, and the tongue column is disposed on the erection The groove of the portion is movable relative to the erection portion, and the tongue block can extend or retreat into the lock case.

The invention has the advantages that the installation of the induction linkage plate ensures that the oblique tongue and the induction oblique tongue are closed when the door is closed, and the mechanism and the spring of the invention are combined with the smooth operation to retreat into the interior of the lock case. The oblique tongue and the inductive oblique tongue can be synchronously operated under the smooth operation, so that the straight tongue transmission plate can be smoothly operated, and the situation that the straight tongue transmission plate cannot be actuated due to the first action of the oblique tongue or the induction oblique tongue is improved. At the same time, the straight tongue drive plate can abut against the rivet of the lock case, and when the straight tongue is actuated, the lock cannot be performed due to the external force, and the invention can further add a round straight tongue to cooperate with the straight tongue to let Users can have one more security protection.

The technical means adopted by the present invention for achieving the intended purpose of creation are further explained below in conjunction with the drawings and preferred embodiments of the present invention.

1 and 2, the double interlocking lock of the present invention has a lock case 10, a slanting tongue 20, an induction slanting tongue 30, an inductive linkage plate 40, a straight tongue 50, a tongue drive plate 60 and a door. The lock drive group; specifically, the door lock drive group has a lock shaft 70 and a door lock shaft 90.

Referring to FIG. 1 , FIG. 2 and FIG. 5 , the lock case 10 has a shell member 11 , a plate member 12 , a first torsion spring 13 , a second torsion spring 14 , and a third torsion spring 15 . Spring 16 and a bearing 17.

The shell member 11 has a first lock shell rivet 111, a second lock shell rivet 112, a third lock shell rivet 113, a fourth lock shell rivet 114, a first inner rivet 115, and a second inner tooth. a rivet 116, a third inner rivet 117, a mounting portion 118 and a guiding groove 119; in particular, the locking shell 10 is composed of the shell member 11, a cover body (not shown) and the plate member 12 joints are assembled, and the rivets and the like are mounted inside the lock case 10, and the cover body is correspondingly coupled to the case member 11, the cover body having a guiding groove 119 opposite to the case member 11. Guide groove (not shown).

The shell member 11 is a rectangular long sheet body, and the three edges of the shell member are respectively bent to form a surrounding wall 110. The shell member 11 is formed at intervals to form a first mounting hole 101, a second mounting hole 102 and a The mounting hole 103 is an elongated hole perpendicular to the longitudinal direction of the shell member 11, the first lock shell rivet 111, the second lock shell rivet 112, the third lock shell rivet 113, the The fourth locking shell rivet 114, the first inner rivet 115, the second inner rivet 116 and the third inner rivet 117 are mounted on one side of the shell member 11, and the erecting portion 118 is bent and formed on The shell member 11 is provided with a side surface of the rivet, a gully is formed in the center of the erecting portion 118, and the second lock shell rivet 112 and the third lock shell rivet 113 are arranged adjacent to each other in a row. 119 is an elongated groove perpendicular to the longitudinal direction of the shell member 11; the first torsion spring 13 is sleeved on the first inner rivet 115, and one end portion abuts against the surrounding wall 110, and the second torsion spring 14 The first inner rivet 116 is sleeved on the first inner rivet 111, and one end of the third torsion spring 15 is sleeved on the third inner rivet 117. An inner edge disposed on the side of the bearing sleeve 17 of the fourth lock housing rivet 114, of the bearing 17 abuts against the rivet 114 of the fourth lock housing. The purpose of the inner rivet setting is that when the shell member 11 is assembled with the cover body, the cover body is fixed to the inner rivet by a connecting member, such as a screw.

The plate member 12 is a long piece, and the plate member 12 is formed with a plurality of through holes at intervals. The plate member 12 is fixedly connected to the other side edge of the case member 11. The spring portion 16 is connected to the plate member 12 at one end. .

As shown in FIG. 2 and FIG. 3 , the oblique tongue 20 has a tongue center block 21 and two tongue pieces 22 , and the tongue 20 is mounted inside the lock case 10 .

The two opposite sides of the center block 21 of the oblique tongue are respectively protruded to form a protrusion 211, and the tongue piece 22 is disposed at opposite side edges of one end portion of the center block 21 of the oblique tongue; the protrusion 211 is accommodated in the lock The guiding groove 119 of the shell member 11 of the casing 10 is displaceable relative to the guiding groove 119, and the other end portion of the first torsion spring 13 abuts against the other end portion of the oblique tongue center block 21, the tongue piece 22 The through holes of the plate member 12 can be extended or retracted. Specifically, the two protrusions 211 are not symmetrically formed on two sides of the center block 21 of the oblique tongue.

Referring to FIG. 2 and FIG. 3 , the sensing tongue 30 is mounted inside the lock case 10 and has a tongue piece 31 , a tongue 32 and a reset relative to the oblique tongue 20 . The spring 33 is fixed to one end of the tongue 32. The outer wall of the tongue 32 is annularly formed to form a convex ring portion 321 . The return spring 33 is sleeved on the tongue 32. The other end portion of the return spring 33 abuts against the protruding portion 321 . The other end of the return spring 33 abuts against the erecting portion 118 of the housing member 11 . The tongue 32 passes through the mounting portion 118 . The groove is movable and movable relative to the erecting portion 118, and the tongue piece 31 can extend or retreat into the through hole of the plate member 12 of the lock case 10.

As shown in FIG. 2 , the inductive linkage plate 40 is mounted on the inside of the lock case 10 , and is a bent piece body. A round bar 41 is disposed at the center of the induction link plate 40. The round bar 41 is disposed at one end. In the mounting hole 103 of the shell member 11 of the lock case 10, the opposite ends of the inductive linkage plate 40 respectively correspond to the tongue center block 21 of the tongue 20 and the tongue block 31 of the inductive tongue 30. And the spring block 16 of the lock case 10 is sleeved on the round bar 41, and the inductive link plate 40 can be adjusted and displaced relative to the lock case 10, and can be respectively received by the latching block central block 21 and the latching block 31. .

As shown in FIG. 1 and FIG. 5 , the straight tongue 50 is mounted on the inside of the lock case 10 , and is disposed at an end portion thereof to form an extension portion 51 with an interval therebetween. The driving column 52 is formed in the extending portion 51 of the locking shell 10; And against the outer edge surface of the bearing 17, the straight tongue 50 can be driven to extend or retreat into the through hole of the plate member 12 of the lock case 10.

Referring to FIG. 2 and FIG. 5 , the straight tongue drive plate 60 is an elongated piece having a recess 61 , a limiting groove 62 , an abutting portion 63 , a driving groove 64 , and a top abutting groove 65 . An abutting portion 66, an auxiliary positioning portion 67 and a locking post 68 are recessed and formed on one side edge of the straight tongue driving plate 60. The top abutting groove 65 is recessed and formed on the straight tongue driving plate 60. At the side edge, the abutting portion 66 is located at one end of the straight tongue drive plate 60. The restricting groove 62 is formed in the long axial direction through the straight tongue drive plate 60, and is laterally recessed at the lower end of the restricting groove 62. A fastening portion 621 is formed, and the bearing portion 63 is bent and formed on one side of the straight tongue drive plate 60. The other end of the second torsion spring 14 of the lock housing 10 abuts against a side of the bearing portion 63. The driving groove 64 extends from the abutting portion 66 toward the other end portion of the straight tongue driving plate 60, and is formed obliquely in the oblique tongue driving plate 60. The driving groove 64 and the long axial direction of the shell member 11 An angle is formed. The opposite ends of the driving groove 64 are respectively recessed to form a positioning portion 641. The auxiliary positioning portion 67 is disposed on the straight tongue driving plate 60 to form a topping. At one end of the side edge of the 65, specifically, the auxiliary positioning portion 67 is a sloped surface, and the locking post 68 is formed on the side formed by the bearing portion 63; the top abutting groove 65 can correspond to the first portion The second locking shell rivet 112 can be correspondingly abutted against the third locking shell rivet 113. The other end of the round bar 41 of the inductive linking plate 40 is disposed through the limiting groove 62. The driving of the straight tongue 50 The column 52 is bored in the drive groove 64.

Referring to FIG. 1 and FIG. 8 , the outer wall surface of the lock shaft 70 of the door lock driving group is oppositely protruded to form two push columns 71; the lock shaft 70 is correspondingly mounted on the shell of the lock case 10 The second mounting hole 102 of the elliptical shaft 70 is rotatably driven relative to the housing member 11, and the push rod 71 can be abutted against the abutting portion 66 of the straight tongue drive plate 60. In time, the indoor system is connected with a twist, and the outdoor is connected with a lock that can be driven by a specific key. The lock shaft 70 is a prior art and will not be described herein.

Referring to FIG. 1 and FIG. 9 , the door lock shaft 90 of the door lock driving group has a lever 91; the door handle shaft 90 is correspondingly mounted to the first mounting hole 101 of the shell member 11 of the lock case 10, The door hinge shaft 90 can be driven to rotate relative to the casing member 11. The lever 91 can be abutted against the other side of the abutting portion 63 of the tongue drive plate 60. When the door shaft is mounted, the shaft is attached to The indoor system is provided with a rotating handle, and the rotating handle drives the door to rotate the rotating shaft 90. The door turning shaft 90 is a prior art and will not be described herein.

The double interlocking lock of the present invention further has a round straight tongue 80. As shown in FIG. 5, the round straight tongue 80 is mounted inside the lock case 10 and has a body with respect to the spacing of the straight tongue 50. a piece 81 and a cylinder 82 having a first round straight tongue rivet 811, a second round straight tongue rivet 812, a third round straight tongue rivet 813 and a locking groove 814, the first round tongue The rivet 811, the second straight straight rivet 812 and the third straight straight rivet 813 are spaced apart from one side of the body piece 81. The locking groove 814 is recessed at an upper edge of the body piece 81. The cylinder 82 Fixedly connected to one side end of the body piece 81, the first straight straight tongue rivet 811 can abut against the straight tongue 50, as shown in FIG. 8, the third round straight tongue rivet 813 can abut the lock core The push rod 71 of the rotating shaft 70, as shown in FIG. 6, can be driven to extend or retreat into the through hole of the plate member 12 of the lock case 10, and the other end portion of the third torsion spring 15 of the lock case 10 The second round straight tongue rivet 812 is disposed, and the locking post 68 of the straight tongue drive plate 60 can be correspondingly disposed inside the locking groove 814, and the shell member 11 is The third lock housing against the rivet 113 on the side edges of the body panel 81.

Referring to FIG. 3 and FIG. 4, when the inductive linkage plate 40 is unable to move in the locked state, the double interlocking lock of the present invention is only used by the tongue block 31 or the tongue piece 22 when the door panel is closed. When one of the flaps touches the flap at the door frame, the tongue 31 or the tab 22 will retreat into the interior of the panel 12 to abut the inductive drive plate 40, but only by the tongue 31 or the tongue One of the pieces 22 abuts against the induction drive plate 40, and the force of the spring 16 applied to the round bar 41 cannot be overcome, so that the round bar 41 is disengaged from the fastening portion 621, so that the induction drive plate 40 generates the circle. The wand 41 is centered to oscillate, but the straight tongue drive plate 60 cannot be displaced downward to bring the present invention into a locked state.

When the tongue piece 31 and the tongue piece 22 touch the mouth piece of the door frame, the tongue piece 12 can be retracted into the interior of the plate member 12, and the induction linkage plate 40 is translated against the force of the spring 16, and the circle is The rod 41 is separated from the fastening portion 621. Referring to FIG. 5, the present invention can be brought into a locked state. When the round rod 41 is located at the long axial direction of the restriction groove 62, the second torsion spring 14 is applied. The force of the abutting portion 63 will cause the straight tongue drive plate 60 to move downward, and the driving groove 64 drives the driving column 52 to displace the straight tongue 50 to extend out of the lock case 10, and then the straight The tongue drive plate 60 will abut against the protruding post 211, so that the tongue piece 22 can maintain the state of extending out of the plate member 12, and the tongue piece 22 is not retracted into the lock case 10 due to an external force pushing against the door panel. In order to achieve the locked state of the present invention, at this time, the driving column 52 is located at the positioning portion 641, as shown in FIG. 7, and the top abutting groove 65 abuts against the third locking shell rivet 113 to ensure the straight The tongue 50 is not retracted into the locked state of the lock case 10 due to the influence of the external force; in addition, when the tongue block 31 and the tongue piece 22 can be retracted into the plate member 1 at the same time 2, when the tongue 22 has not entered the corresponding portion of the mouth piece of the door frame due to the force of the first torsion spring 13, the protrusion 211 is caused to be engaged in the recess 61, as shown in FIG. The present invention still fails to enter the locked state. Therefore, even if the tongue block 31 and the tongue piece 22 simultaneously retreat into the interior of the plate member 12, the tongue piece 22 and the tongue piece subjected to the return spring 33 are still to be awaited. 31 Enter the corresponding position of the mouth piece to enter the locked state.

Referring to FIG. 6 , if the straight tongue 50 enters the corresponding position of the mouth piece of the door frame, there may be external resistance caused by a slight deflection when the mouth piece is installed on the site, or rubbing to the straight tongue. The side factor may cause the straight tongue 50 to not fully extend into the locked state, and the present invention can still enter the precise first locking state in the same state as described above, thereby entering the complete second locking state. The second locking shell rivet 112 abuts against the top abutting groove 65, and the auxiliary positioning portion 67 abuts against the third locking shell rivet 113 even if the driving column 52 is located in the middle of the driving groove 64, but not Upon reaching the locked position, the straight tongue 50 can still remain in the extended state without retreating into the inside of the lock case 10, so that the present invention performs the function of locking the door lock; in addition, since the auxiliary positioning portion 67 is inclined Therefore, when the second tongue drive rivet 112 and the third lock case rivet 113 are sequentially contacted in the downward movement process, the straight tongue drive plate 60 can pass smoothly to assist the top abutment. The groove 65 abuts against the second lock shell riveting The nail 112 is thereby reached a first locked state.

Since the straight tongue 50 is on the moving line of the movement of the first straight straight rivet 811, as shown in FIG. 8, therefore, only when the present invention is in the locked state of the straight tongue 50, the straight tongue 50 is not obstructed. For the movement of the first straight tongue rivet 811, please refer to FIG. 6 and FIG. 7 at the same time, the user can rotate the lock button indoors or insert the lock with a key to rotate the door to drive the push column. 71 is pushed against the third round straight tongue rivet 813 to displace the body piece 81, and the cylinder 82 can extend out of the lock case 10 to reach the locked state of the round straight tongue 80 of the present invention. At this time, the straight tongue The locking post 68 of the driving plate 60 is locked inside the locking groove 814 of the body piece 81, thereby ensuring that the round straight tongue 80 protrudes from the locked state of the locking case 10, and because the third locking case rivet 113 abuts The upper edge of the body piece 81 is such that the body piece 81 is horizontally displaced.

In contrast, if the user wants to release the locked state of the present invention, the user can unlock the lock shaft 70 by using the rotation of the lock shaft 70. Referring to FIG. 8, the push rod 71 is pushed against the abutment portion 66. When the straight tongue drive plate 60 is moved upward, the driving groove 64 drives the driving column 52 to move, and the straight tongue 50 retreats into the inside of the lock case 10, and the straight tongue 50 also pushes against the first straight tongue. The rivet 811 causes the round tongue 80 to be unlocked together.

If the indoor person encounters an emergency state, such as a fire alarm, and needs emergency evacuation, when the user twists the rotating handle indoors, the door handle shaft 90 rotates accordingly, and the lever 91 will push against the bearing portion 63. As shown in FIG. 9, the straight tongue drive plate 60 is moved upward to release the locked state of the straight tongue 50 and the straight tongue 80 together.

In the present invention, the inductive linkage plate 40 is mounted inside the lock case 10. Since the mechanism of the double interlocking lock of the present invention is activated, the inductive linkage plate 40 can freely adjust the front and rear actuation and displacement, etc., to ensure the When the slanting tongue 20 and the slanting tongue 30 are closed, they can be retracted into the interior of the lock casing 10 at the same time, so that the round bar 41 on the induction linkage plate 40 can be smoothly disengaged from the buckle portion of the straight tongue drive plate 60. After 621, and then gliding into the inside of the limiting groove 62, the straight tongue driving plate 60 can smoothly move downward by the thrust of the second torsion spring 14, so that the inclined tongue 20 and the sensing tongue 30 can be synchronized. The straight tongue drive plate 60 is moved downward to improve the situation that the straight tongue drive plate 60 cannot be actuated due to the first action of the oblique tongue 20 or the induction tongue 30. At the same time, the straight tongue drive is driven. The plate 60 can abut against the second lock rivet 112 and the third lock rivet 113 of the lock case 10, so as to prevent the lock from being locked due to external force when the straight tongue is actuated, and the present invention can further add the circle. Straight tongue 80 to cooperate with the straight tongue 50 to make It is able to multi-layer of security.

The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Although the present invention has been disclosed in the above preferred embodiments, it is not intended to limit the invention, and A person skilled in the art can make some modifications or modifications to equivalent embodiments by using the above-disclosed technical contents without departing from the technical scope of the present invention. The present invention is not limited to any simple modifications, equivalent changes and modifications of the above embodiments.

10‧‧‧Lock shell
11‧‧‧Shell
110‧‧‧ wall
111‧‧‧First lock rivet
112‧‧‧Second lock rivet
113‧‧‧ third lock shell rivet
114‧‧‧Fourth lock rivet
115‧‧‧First internal rivet
116‧‧‧Second internal rivets
117‧‧‧ Third internal tooth rivet
118‧‧‧Building Department
119‧‧‧ guiding slot
101‧‧‧First mounting hole
102‧‧‧Second mounting hole
103‧‧‧Installation holes
12‧‧‧ boards
13‧‧‧First torsion spring
14‧‧‧Second torsion spring
15‧‧‧ Third torsion spring
16‧‧‧ Spring
17‧‧‧ bearing
20‧‧‧ oblique tongue
21‧‧‧ oblique tongue center block
211‧‧‧Bump
22‧‧‧ tongue
30‧‧‧Induction tongue
31‧‧‧ tongue block
32‧‧ ‧ tongue
321‧‧‧ convex ring
33‧‧‧Return spring
40‧‧‧Induction Linkage Board
41‧‧‧ round stick
50‧‧‧ Straight tongue
51‧‧‧Extension
511‧‧‧ displacement groove
52‧‧‧Drive column
60‧‧‧ Straight tongue drive plate
61‧‧‧ recess
62‧‧‧Restricted ditch
621‧‧‧Deduction Department
63‧‧‧Attendance Department
64‧‧‧ drive ditch
641‧‧‧ Positioning Department
65‧‧‧Abutment slot
66‧‧‧Abutment
67‧‧‧Auxiliary Positioning Department
68‧‧‧Locking column
70‧‧‧Lock shaft
71‧‧‧ pushed column
80‧‧‧ Round tongue
81‧‧‧ body film
811‧‧‧First round straight tongue rivet
812‧‧‧Second round straight tongue rivet
813‧‧‧3rd round straight tongue rivet
814‧‧‧Lock groove
82‧‧‧Cylinder
90‧‧‧ Door hinge
91‧‧‧Pushing prior art one
3‧‧‧Lock tongue
4‧‧‧ oblique tongue
5‧‧‧Flexible control parts
8‧‧‧ Transmission parts prior art 2
3‧‧‧ oblique tongue
7‧‧‧ Guide transmission parts
7e‧‧‧ trench
8‧‧‧Assistive sensor tongue
11‧‧‧stops
13‧‧‧Lock tongue
15‧‧ ‧ sales

Figure 1 is a front elevational view of the unlocked state of the present invention. Figure 2 is a perspective view showing the separation of the straight tongue drive plate of the present invention. Figure 3 is a partial front elevational view of the inductive linkage plate of the present invention. Figure 4 is another partial front elevational view of the inductive linkage plate of the present invention. Figure 5 is a front elevational view of the present invention in a second locked state. Figure 6 is a partial front elevational view of the first locked state of the straight tongue of the present invention. Figure 7 is a partial elevational view of the straight tongue locking of the present invention. Figure 8 is a front elevational view of the present invention unlocked with a lock shaft. Figure 9 is a front elevational view of the invention with the door handle shaft unlocked.

10‧‧‧Lock shell

111‧‧‧First lock rivet

114‧‧‧Fourth lock rivet

116‧‧‧Second internal rivets

101‧‧‧First mounting hole

102‧‧‧Second mounting hole

12‧‧‧ boards

14‧‧‧Second torsion spring

16‧‧‧ Spring

17‧‧‧ bearing

20‧‧‧ oblique tongue

30‧‧‧Induction tongue

50‧‧‧ Straight tongue

60‧‧‧ Straight tongue drive plate

70‧‧‧Lock shaft

71‧‧‧ pushed column

80‧‧‧ Round tongue

90‧‧‧ Door hinge

Claims (7)

A double linkage lock has a lock shell, a slant tongue, an induction slant tongue, an induction linkage plate, a tongue, a tongue drive plate and a door lock drive group; the lock case is internally provided with a first torsion spring, a second torsion spring, a spring and a second lock rivet, and an erecting portion is formed inside; the slanting tongue, the sensing slanting tongue and the straight tongue are disposed at intervals inside the lock case, and the sensing slant tongue Having a return spring, one end of the return spring of the inductive slanting tongue abuts against the erecting portion, one end of the first torsion spring of the locking shell abuts against the slanting tongue, the slanting tongue and the sensing slanting tongue can protrude Or retracting the lock case; the inductive interlocking plate is a body, a round bar is disposed at a center of the inductive linkage plate, and one end of the round bar is disposed through the lock case, and the opposite ends of the inductive link plate are respectively opposite Corresponding to the oblique tongue and the sensing oblique tongue, and capable of respectively receiving the oblique tongue and the sensing oblique tongue, the spring is disposed between the locking shell and the round rod, and the induction linkage plate can be adjusted relative to the locking shell Displacement; the straight tongue has a drive column, and the straight tongue can be subjected to The driving device extends or retreats into the lock case; the straight tongue drive plate is an elongated piece, and the straight tongue drive plate has a limiting groove, an abutting portion, a driving groove, a top abutting groove and an abutting portion. The abutting portion is located at one end of the straight tongue driving plate, and the limiting groove is formed in the long axial direction through the straight tongue driving plate, and is laterally recessed at the lower end to form a fastening portion, the driving groove is abutted by the abutting portion The portion extending toward the other end of the straight tongue drive plate and formed at an angle with the long axis of the lock case is formed on the straight tongue drive plate, and the opposite ends of the drive groove are respectively recessed to form a positioning portion, the top portion The abutment recess is formed at a side edge of the straight tongue drive plate, and the top abutment groove can be correspondingly abutted against the second lock case rivet, and the bearing portion is bent and formed on a side of the straight tongue drive plate, the lock case One end of the second torsion spring abuts against a side of the bearing portion, and the other end of the round bar of the inductive linkage plate is disposed in the limiting groove, and the driving column of the straight tongue is disposed in the driving groove, the door The lock drive set can abut against the other side of the abutment and the abutment. The double interlocking lock according to claim 1, wherein the door lock driving group has a lock shaft and a door pivot; the lock case further has a shell member and a third lock shell rivet, the first torsion spring, the first torsion spring a second torsion spring, the spring, the second lock shell rivet and the third lock shell rivet are mounted on one side of the shell member, and the second lock shell rivet and the third lock shell rivet are adjacent to each other in a row Aligning the setting, and the erecting portion is formed on the side of the shell member on which the component is mounted, and the shell member further penetrates to form a mounting hole, a first mounting hole and a second mounting hole, the mounting hole An auxiliary hole is disposed in the mounting hole, the driving groove forms an angle with a long axial direction of the shell member; the straight tongue driving plate further has an auxiliary positioning portion, the auxiliary The positioning portion is disposed at one end of the straight tongue drive plate forming a side edge of the top abutting groove, and the auxiliary positioning portion can correspondingly abut against the third lock case rivet of the lock case; the outer wall of the lock core shaft is oppositely convex Extending into a second push column, the lock shaft is correspondingly mounted on the second mounting hole The lock shaft can be driven to rotate relative to the shell member, and the push rod can be abutted against the abutment portion of the straight tongue drive plate; the door handle shaft has a lever, and the door handle shaft is correspondingly mounted on the shaft A mounting hole that can be driven to rotate relative to the housing member, the lever being capable of abutting against the other side of the abutment portion of the straight tongue drive plate. The double interlocking lock according to claim 2, further comprising a round straight tongue having a body piece and a cylinder disposed inside the lock case and spaced apart from the straight tongue; the body piece The utility model has a first straight straight tongue rivet, a second round straight tongue rivet and a third round straight tongue rivet, the first round straight tongue rivet, the second round straight tongue rivet and the third round straight tongue rivet spaced apart Provided on a side of the body piece, the cylinder is fixedly coupled to one side end of the body piece, the first round straight tongue rivet can abut the straight tongue, and the third round straight tongue rivet can abut the lock core a push column of the rotating shaft, the cylinder can extend or retreat into the lock case; the lock case further has a third torsion spring and a third inner tooth rivet, the third inner tooth rivet is mounted on the case member, the first One end of the three torsion spring is sleeved on the second round straight tongue rivet, and the other end is sleeved on the third inner tooth rivet. The double interlocking lock according to claim 3, the lock case further has a plate member and a bearing, the spring end of the lock case is sleeved on the round bar of the induction linkage plate, and the other end portion is connected to the plate member. The shell member further has a first inner rivet, a first lock rivet, a second inner rivet and a fourth lock rivet, the shell being a rectangular long piece, the plate being fixedly connected At a side edge of the shell member, the remaining three edges of the shell member are respectively bent to form a surrounding wall, and the plate member is formed to penetrate through the plurality of through holes, the first inner tooth rivet, the first lock shell rivet, The second inner rivet and the fourth lock rivet are mounted on the side of the shell member for mounting the second lock rivet and the third lock rivet, and the first torsion spring is sleeved in the first inner sleeve a tooth rivet, the other end abuts against the surrounding wall, the second torsion spring is sleeved on the second inner tooth rivet, the other end abuts against the first locking shell rivet, and the bearing is sleeved on the fourth lock a rivet, the inner edge of the bearing abuts against the fourth lock rivet; the one end of the straight tongue protrudes to form an extension portion, The extending portion penetrates to form a displacement groove along the longitudinal axis of the straight tongue, the displacement groove is sleeved on the bearing of the lock case, and abuts against the outer edge surface of the bearing, and the driving column is mounted on the extending portion; The inclined tongue, the sensing tongue, the straight tongue and the straight tongue can respectively pass through the through hole of the plate member of the lock case to extend or retreat into the plate. The double interlocking lock according to any one of claims 1 to 4, wherein the oblique tongue has a tongue center block and two tongue pieces; the lock case has two guiding grooves formed therein, the guiding groove is a vertical locking An elongated groove in the direction of the long axis of the shell; the opposite sides of the central block of the oblique tongue respectively protrude to form a protrusion, and the tongue is disposed at opposite side edges of one end portion of the central block of the oblique tongue, the protrusion The guide groove of the lock case is displaceable relative to the guide groove, and the tongue piece can extend or retreat into the lock case; one end of the induction link plate corresponds to the center block of the oblique tongue. The double interlocking lock according to claim 5, wherein the sensing oblique tongue has a tongue block and a tongue; the center of the erecting portion of the locking shell forms a receiving groove; the tongue block is fixedly mounted at one end of the tongue An annular ring portion of the outer wall of the tongue column forms a convex ring portion, and the return spring is sleeved on the other end of the tongue column, and the other end of the return spring abuts against the convex ring portion, and the tongue column wears It is disposed in the cavity of the erection portion and is movable relative to the erection portion, and the tongue block can extend or retreat into the lock case. The double interlocking lock according to any one of claims 1 to 4, wherein the sensing tongue has a tongue block and a tongue; the center of the erection portion of the lock case forms a cavity; the tongue block is fixedly mounted thereon One end of the tongue, the annular wall of the tongue is annularly formed to form a convex ring portion, the return spring is sleeved on the other end of the tongue, and the other end of the return spring abuts against the convex portion The tongue is disposed in the cavity of the erection portion and is movable relative to the erection portion, and the tongue block can extend or retreat into the lock case.