A two-stage linkage lock pin double-leaf door lock

Abstract

The invention discloses a two-stage linkage lock pin double-leaf door lock, which is installed on a double-leaf door. The two-leaf door panels of the double-leaf door are respectively a first door panel and a second door panel, and include a transverse bolt, a latch lock and a linkage lock; the transverse bolt is installed on the first door panel through a tension spring, and the transverse bolt is provided with a lock tongue groove; the latch lock is installed on the second door panel, and the latch lock includes a latch lock core, a latch tongue, a latch handle and a linkage piece, the latch handle is connected with the latch tongue, the latch handle can drive the latch tongue to extend and retract, and the latch tongue matches the latch tongue groove; the linkage lock includes a linkage lock tongue component and a buckle box, the linkage lock tongue component is installed on the top or bottom of the second door panel, the buckle box cooperates with the linkage lock tongue and is installed on the door frame, and the linkage lock tongue component is connected with the linkage piece through a transmission rod. The invention is simple to install and can solve the problems of safety and convenience of double-leaf door locks at the same time.

Description

Technical Field

[0001] The invention relates to the fields of home life and security, and in particular to a two-stage linked lock pin double-leaf door lock. Background Art

[0002] With the rapid economic development of our country, the field of building decoration has also entered a stage of rapid development. Locks have become an indispensable type of equipment, which is related to the security needs of daily home life. At present, there are various types of door locks on the market, and they are becoming more and more advanced. Various single-leaf door locks are emerging in an endless stream, such as ball locks, handle locks, electronic locks, fingerprint locks, remote control locks, card locks, etc.

[0003] However, double-leaf doors are still widely used, especially in self-built houses in rural areas and public buildings in cities (such as hospitals, office buildings, etc.).

[0004] Common double-leaf door locks in daily life mainly include the following types: (1) A combination of an exposed horizontal bolt and an exposed lock. The exposed lock is difficult to operate and requires both hands to unlock. It also has poor anti-theft performance, is easy to lose, and is inconvenient for the elderly and children to use. (2) A combination of a latch and a touch lock. One side of the door leaf is fixed with an upper and lower latch, and a touch lock is set on the other side. However, if the upper latch is too high, children cannot reach it, and if the lower latch is too low, it is difficult for the elderly to bend over, making it inconvenient to operate. Moreover, if the latch is forgotten, the door can be easily pushed open, which is unsafe and unreliable. (3) Common double-leaf door lock. It has a beautiful appearance, and the touch lock and bolt are hidden in the aluminum door panel. However, it still requires an additional push-pull bolt switch to lock the bolt hidden in the aluminum door panel. If you forget to pull the bolt switch, it can still be easily pushed open, which is not very safe and stable.

[0005] Therefore, how to deal with the safety and convenience of double-leaf door locks is a problem that technicians in this field urgently need to solve. Summary of the invention

[0006] In order to solve the above technical problems, the present invention provides a two-stage linked lock pin double-leaf door lock, which is easy to install and can solve the problems of safety and convenience of the double-leaf door lock at the same time.

[0007] The technical solution provided by the present invention is as follows:

[0008] A two-stage linkage lock pin double-leaf door lock is installed on a double-leaf door, and the two door panels of the double-leaf door are respectively a first door panel and a second door panel.

[0009] Including cross latch, slam lock and linkage lock;

[0010] The transverse bolt is installed on the first door sheet through a tension spring, and a lock tongue groove is provided on the transverse bolt;

[0011] The latch lock is installed on the second door panel, and the latch lock comprises a latch lock core, a latch lock tongue, a latch lock handle and a linkage piece. The latch lock core is connected with the latch lock tongue and the linkage piece, and the latch lock core can drive the latch lock tongue and the linkage piece to extend and retract respectively. The latch lock handle is connected with the latch lock tongue, and the latch lock handle can drive the latch lock tongue to extend and retract, and the latch lock tongue matches the latch tongue groove.

[0012] The interlocking lock comprises an interlocking lock tongue component and a buckle box, wherein the interlocking lock tongue component is installed at the top or bottom of the second door sheet, the buckle box cooperates with the interlocking lock tongue and is installed on the door frame, and the interlocking lock tongue component is connected to the interlocking sheet through a transmission rod.

[0013] The latch lock core of the present invention can be a commonly used lock core structure on the market.

[0014] Preferably, the transverse latch is perpendicular to the latch tongue.

[0015] Preferably, the transverse bolt is provided with two lock tongue grooves, which are matched with the latch tongues respectively. The two lock tongue grooves are matched with the latch tongues respectively, corresponding to different locking degrees.

[0016] Preferably, a door locking handle is installed on the cross bolt, and the door locking handle can manually control the left and right movement of the cross bolt.

[0017] Preferably, the locking tongue of the linkage lock is a latch-type lock structure, the tail end of the latch of the latch-type lock structure is connected to one end of the transmission rod, and the linkage piece is connected to the other end of the transmission rod. The displacement of the tail end of the linkage piece can drive the transmission rod to move up and down, thereby completing the locking or unlocking of the linkage lock.

[0018] Preferably, a linkage lock handle is installed on the latch to control the up and down movement of the latch.

[0019] Preferably, the linkage piece is perpendicular to the latch tongue.

[0020] Preferably, the transmission rod is perpendicular to the linkage piece.

[0021] Preferably, a quick door opening handle may be installed on the lock core to replace the key function.

[0022] Preferably, the number of the interlocking locks is one or two, and the number of the interlocking plates is the same as the number of the interlocking locks.

[0023] The two-stage linkage lock pin double-leaf door lock provided by the present invention has the following advantages compared with the prior art:

[0024] (1) When the present invention is used, the door can be opened and locked in two stages by simply turning the key without pulling the upper and lower latches, which is convenient and quick.

[0025] (2) The left and right combination design of the latch and cross bolt is safe and stable, with good anti-theft performance.

[0026] (3) The lock core can be equipped with a quick door opening handle to replace the key function, so that quick door opening can be completed without the need for a key. It is more suitable for places such as hospitals where emergency door opening is required.

[0027] (4) The present invention has a simple structure, low production cost, and is easy to promote and implement. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative work.

[0029] Figure 1 It is a structural schematic diagram of a two-stage linkage lock pin double-leaf door lock described in the embodiment;

[0030] Figure 2 It is a schematic diagram of the structure of the cross bolt;

[0031] Figure 3 It is a schematic diagram of the combined structure of the horizontal latch and the latch;

[0032] Figure 4 It is a schematic diagram of the linkage piece structure;

[0033] Figure 5 It is a schematic diagram of the interlocking lock structure;

[0034] Figure 6 A schematic diagram of the structure of a double-leaf door with a two-stage linkage lock pin double-leaf door lock installed as described in the embodiment as seen from the outside of the door;

[0035] Figure 7 A schematic diagram of the structure of a double-leaf door with a two-stage linkage lock pin double-leaf door lock installed as described in the embodiment as seen from the inside of the door;

[0036] In the figure: 1-snap lock; 2-cross bolt; 3-tension spring; 4-linkage plate; 5-linkage lock; 6-transmission rod; 7-door lock handle; 8-lock tongue groove; 9-snap lock tongue; 10-linkage lock handle; 11-snap lock handle; 12-snap lock cylinder; 13-first door panel; 14-second door panel. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention are clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present invention.

[0038] It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification so that people familiar with this technology can understand and read them. They are not used to limit the conditions under which the present invention can be implemented, so they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0039] The embodiments of the present invention are written in a progressive manner.

[0040] like Figure 1-7 As shown, a two-stage linkage lock pin double-leaf door lock is installed on a double-leaf door, and the two door panels of the double-leaf door are respectively a first door panel 13 and a second door panel 14.

[0041] It includes a cross latch 2, a latch 1 and a linkage lock 5;

[0042] The cross bolt 2 is installed on the first door sheet 13 through a tension spring 3, and a lock tongue groove 8 is provided on the cross bolt 2;

[0043] The latch 1 is installed on the second door sheet 14, and the latch 1 includes a latch cylinder 12, a latch tongue 9, a latch handle 11 and a linkage piece 4, wherein the latch cylinder 12 is connected to the latch tongue 9 and the linkage piece 4 respectively, and the latch cylinder 12 can drive the latch tongue 9 and the linkage piece 4 to extend and retract respectively, and the latch handle 11 is connected to the latch tongue 9, and the latch handle 11 can drive the latch tongue 9 to extend and retract, and the latch tongue 9 matches the latch tongue groove 8;

[0044] The interlocking lock 5 includes an interlocking lock tongue component and a buckle box. The interlocking lock tongue component is installed on the top or bottom of the second door panel 14. The buckle box cooperates with the interlocking lock tongue and is installed on the door frame. The interlocking lock tongue component is connected to the interlocking panel 4 through a transmission rod 6.

[0045] Furthermore, the transverse bolt 2 is perpendicular to the latch tongue 9 .

[0046] As a preferred embodiment, two lock tongue grooves 8 may be provided on the transverse bolt 2, and the two lock tongue grooves 8 are matched with the latching lock tongue 9 respectively, corresponding to different locking degrees.

[0047] Furthermore, a door locking handle 7 is installed on the cross bolt 2, and the door locking handle 7 can manually control the left and right movement of the cross bolt 2.

[0048] Furthermore, the bolt tongue portion of the interlocking lock is a latch-type lock structure, the tail end of the latch of the latch-type lock structure is connected to one end of the transmission rod 6, and the interlocking piece 4 is connected to the other end of the transmission rod 6. When the tail end of the interlocking piece is displaced, it drives the transmission rod 6 to move up and down, so that the latch enters the buckle box or is pulled out of the buckle box, completing the locking or opening of the interlocking lock 5.

[0049] Furthermore, a linkage lock handle 10 is installed on the bolt, and the linkage lock handle 10 can manually control the up and down movement of the bolt, thereby completing the locking or opening of the linkage lock 5.

[0050] Furthermore, the linkage piece 4 is perpendicular to the latch tongue 9 , the tail of the linkage piece is outside the lock housing of the latch, and the transmission rod 6 is perpendicular to the linkage piece 4 .

[0051] Furthermore, a quick door opening handle may be installed on the lock core 12 to replace the key function and complete quick door opening without the need for the key.

[0052] The latch lock core described in the present invention may be a commonly used lock core structure in the prior art. The lock core may be rotated clockwise or counterclockwise by a key, thereby driving the latch lock tongue and the linkage rod to extend or move.

[0053] The following is an example of an implementation method when the interlock 5 is installed at the bottom of the door panel.

[0054] When closing the door, first pull together the second door panel 14 equipped with the latch 1, the interlocking lock tongue of the interlocking lock 5 is inserted into the buckle box to lock the second door panel 14, then pull together the first door panel 13 equipped with the transverse bolt 2, push the handle 7 of the transverse bolt 2 toward the latch 1, and the latching lock tongue 9 is inserted into the lock tongue groove 8 on the transverse bolt 1 to complete the locking.

[0055] As an implementation method, when it is necessary to open the door from the outside, the key is inserted into the latch lock core 12 of the latch lock 1 and rotated counterclockwise to pull down the latch lock tongue 9, and the latch lock tongue 9 withdraws from the lock tongue groove 8. The cross bolt 2 automatically pops open under the action of the tension spring 3, and the first door piece 13 installed on one side of the cross bolt 2 completes the unlocking; then the key is rotated clockwise to displace the linkage piece 4, driving the force transmission rod 6 to pull up the linkage lock handle 10, and the linkage lock 5 is unlocked. At this time, the second door piece 14 installed with the latch lock 1 completes the unlocking.

[0056] When the door needs to be opened from the inside, the latch handle 11 is pulled to pull the latch tongue 9 down, and the latch tongue 9 withdraws from the latch tongue groove 8. The cross bolt 2 automatically pops open under the action of the tension spring 3, and the first door piece 13 equipped with the cross bolt 2 is unlocked; then the interlocking lock handle 10 is pulled to draw the bolt out of the buckle box to unlock the interlocking lock 5. At this time, the second door piece 14 equipped with the latch 1 is unlocked.

[0057] The lock core 12 may be provided with a quick door opening handle to replace the key function, so that quick door opening can be achieved without the need for a key.

[0058] The number of the interlocking locks 5 is one or two. When necessary, interlocking locks 5 are installed on the top and bottom of the second door sheet respectively. The number of interlocking sheets 4 corresponds to the number of the interlocking locks 5 and they are installed with the interlocking locks 5 respectively.

[0059] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A two-stage linkage lock pin double-leaf door lock, installed on a double-leaf door, the two door panels of the double-leaf door are respectively a first door panel (13) and a second door panel (14), characterized in that: It comprises a cross latch (2), a latch (1) and a linkage lock (5); The transverse bolt (2) is mounted on the first door panel (13) via a tension spring (3), and a lock tongue groove (8) is provided on the transverse bolt (2); The latch (1) is mounted on the second door panel (14), and comprises a latch lock core (12), a latch lock tongue (9), a latch handle (11) and a linkage plate (4); the latch lock core (12) is connected to the latch lock tongue (9) and the linkage plate (4) respectively; the latch lock core (12) can drive the latch lock tongue (9) and the linkage plate (4) to extend and retract respectively; the latch handle (11) is connected to the latch lock tongue (9); the latch handle (11) can drive the latch lock tongue (9) to extend and retract; the latch lock tongue (9) matches the latch tongue groove (8); The linkage lock (5) comprises a linkage lock tongue component and a buckle box, wherein the linkage lock tongue component is mounted on the top or bottom of the second door sheet (14), the buckle box cooperates with the linkage lock tongue component and is mounted on the door frame, and the linkage lock tongue component is connected to the linkage sheet (4) via a transmission rod (6); The locking tongue component of the interlocking lock is a latch-type lock structure, the rear end of the latch of the latch-type lock structure is connected to one end of the transmission rod (6), and the interlocking piece (4) is connected to the other end of the transmission rod (6); the rear end of the interlocking piece is connected to the other end of the transmission rod, and the displacement of the rear end of the interlocking piece can drive the transmission rod to move up and down, thereby completing the locking or unlocking of the interlocking lock.

2. The two-stage linkage lock pin double-leaf door lock according to claim 1, characterized in that: The transverse latch (2) is perpendicular to the latch tongue (9).

3. The two-stage linkage lock pin double-leaf door lock according to claim 2, characterized in that: The transverse bolt (2) is provided with two lock tongue grooves (8), and the two lock tongue grooves (8) are matched with the touch lock tongues (9) respectively.

4. The two-stage linkage lock pin double-leaf door lock according to claim 3, characterized in that: A door locking handle (7) is mounted on the transverse bolt (2).

5. The two-stage linkage lock pin double-leaf door lock according to claim 4, characterized in that: A linkage lock handle (10) is mounted on the latch.

6. The two-stage linkage lock pin double-leaf door lock according to claim 5, characterized in that: The linkage piece (4) is perpendicular to the latch tongue (9).

7. The two-stage linkage lock pin double-leaf door lock according to claim 6, characterized in that: The transmission rod (6) is perpendicular to the linkage plate (4).

8. The two-stage linkage lock pin double-leaf door lock according to claim 7, characterized in that: A quick door opening handle may be installed on the lock core (12).

9. The two-stage linkage lock pin double-leaf door lock according to claim 8, characterized in that: The number of the interlocking locks (5) is one or two, and the number of the interlocking plates (4) is the same as the number of the interlocking locks (5).

Images