Folding door bolt lock device and folding door
By designing a folding door latch lock device including push rod assembly, lock body, transmission rod and latch assembly, the wear and cumbersome problems caused by locking the existing folding door lock device in the middle of the door body are solved, and the problem of wear and cumbersome operation is achieved. Strong stability and safety.
Patent Information
- Application Number
- CN202421182889.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-28
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-05-28
AI Technical Summary
The existing folding door lock device is locked in the middle of the door body, which can easily cause wear to the connecting mechanism and cause cumbersome operation to cause safety hazards.
Design a folding door latch lock device, including a door head frame, push rod assembly, lock body, transmission rod and latch assembly, push rod pushing the tooth of the lock body through the push rod, so that the transmission rod drives the plug rod of the pin assembly to achieve telescopic action , realize locking and unlocking.
It improves the stability and connection tightness of the door lock device, enhances the anti-impact, anti-pick door and anti-fall effects, reduces the need for human operation, and improves safety.
Smart Images
Figure CN222457103U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of folding doors, in particular to a folding door latch lock device and a folding door. Background Art
[0002] Due to the folding design of the folding door, specifically a door system that connects two or four door panels through upper and lower guide rails and a transmission rod door shaft, which can be folded and opened and closed in one or two directions, the door body can be folded and stored in the elevator car without occupying additional space, and thus is widely used in the elevator field. Among them, the folding door is used for the outer door of the elevator. In order to prevent impact, door picking, falling, etc., a door lock device is generally added to the door body.
[0003] At present, most conventional door locks are directly transferred from the locking device of the swing door. For example, a lock body with a handle is provided on one door body of the folding door, and a lock groove for cooperating with the lock body is provided on the other door body. When the two door bodies are closed, the folding door is locked in the middle by turning the handle.
[0004] However, the above structure has the following defects when used for folding doors: first, the main load-bearing method of the two door bodies in the middle of the folding door comes from the linkage mechanism above the door body. The door body itself is relatively fragile. This locking method in the middle of the door body can easily cause wear and tear on the linkage mechanism of the folding door; second, the middle locking method requires manual opening or closing, which is cumbersome to operate and poses a safety hazard. Utility Model Content
[0005] The utility model provides a folding door latch lock device and a folding door, so as to solve the problem of lack of special folding door locks in the prior art.
[0006] In order to solve the above technical problems, the technical solution adopted by the utility model is to provide a folding door latch lock device, which includes: a door head frame, a push rod assembly, a lock body, a transmission rod and a latch assembly.
[0007] The door head frame is provided with latch bushings at intervals along the first direction; the push rod assembly includes a push rod member that can be extended and retracted along the first direction; the lock body includes a first tooth plate and a second tooth plate, the first tooth plate can be meshed with the second tooth plate, wherein the first tooth plate is rotatably connected to the push rod member.
[0008] The transmission rod is symmetrically arranged on both sides of the lock body along the first direction, and is respectively linked to the first tooth plate and / or the second tooth plate; the latch assembly includes an insertion rod, which is connected to the transmission rod, wherein the insertion rod is inserted into the latch sleeve along the second direction.
[0009] Compared with the prior art, the technical solution provided by the utility model has the following beneficial effects:
[0010] The push rod pushes the first tooth piece of the lock body in the first direction, so that the first tooth piece can rotate in the clockwise direction by a certain angle under the thrust, thereby disengaging from the second tooth piece, and being linked to the plug rod of the latch assembly by the transmission rod, so as to realize the telescopic action of the plug rod. That is, the push rod, the transmission rod and the latch assembly are linked by the first tooth piece and the second tooth piece, so that the folding door lock device has stronger stability and the connection between the various components is also tighter. Compared with the door lock device currently set in the middle of the door body, the above structure enables the door lock device to have a stronger anti-impact, anti-pick and anti-fall effect.
[0011] In some embodiments, one side of the transmission rod is connected to the first tooth piece or the second tooth piece, and the other side of the transmission rod is connected to the insertion rod, wherein a transmission rod pin is provided at the connection between the transmission rod and the first tooth piece or the second tooth piece.
[0012] By adopting the above technical solution, when the first tooth plate rotates clockwise, it drives the transmission rod to rotate counterclockwise, and then drives the insertion rod to move upward to achieve unlocking; when the first tooth plate rotates counterclockwise, it drives the transmission rod to rotate clockwise, and then drives the insertion rod to move downward to achieve locking.
[0013] In some embodiments, the latch assembly further includes a latch bracket and a compression spring, wherein the latch bracket is fixed to the bottom of the door head frame, and the insertion rod sequentially passes through the latch bracket and the compression spring along the second direction.
[0014] By adopting the above technical solution, a compression spring is additionally provided to assist the downward movement of the insertion rod.
[0015] In some embodiments, the lock body is further provided with a key shaft, and the key shaft sleeve is provided with a self-locking plate, and the self-locking plate has a recess, wherein a power switch is provided on one side of the key shaft along the first direction, and the power switch extends into the recess of the self-locking plate, so that when the key shaft drives the self-locking plate to rotate, the power switch can be turned off.
[0016] By adopting the above technical solution, when an emergency occurs, the power switch can be turned off in time by inserting the key into the key shaft.
[0017] In some embodiments, the self-locking plate is connected to the second tooth plate, so that when the key shaft drives the self-locking plate to rotate, the self-locking plate can push the second tooth plate to rotate.
[0018] By adopting the above technical solution, the self-locking plate drives the second tooth plate to rotate, and then drives the transmission rod and the insertion rod in turn, so that the folding door latch lock device can also be manually unlocked when power outages, maintenance or other emergency situations occur.
[0019] In some embodiments, the self-locking sheet is further embedded with a plurality of spring positioning beads.
[0020] By adopting the above technical solution, the spring positioning bead is used to elastically connect the self-locking plate, so that the self-locking plate can only be rotated to turn off the power switch and push the second tooth plate when the key shaft is turned.
[0021] In some embodiments, the push rod member includes a push rod tension spring and a push rod linkage arm, the push rod tension spring can perform telescopic movement along the first direction, and the push rod linkage arm is connected to the first tooth piece.
[0022] In some embodiments, a plurality of door opening and closing position sensors are provided at the bottom of the door head frame along the second direction, and the plurality of door opening and closing position sensors are spaced apart along the first direction.
[0023] By adopting the above technical solution, a door opening and closing position sensor is additionally provided to timely detect whether the door body is fully closed.
[0024] In some embodiments, the door head frame is provided with an upper threshold at the bottom along the second direction, and an electric door lock is provided at the middle of the upper threshold along the first direction, wherein an electrical controller communicatively connected to the electric door lock is also provided in the door head frame.
[0025] By adopting the above technical solution, an electric door lock is added to lock the door body in the middle of the door head frame to enhance its locking effect.
[0026] In some embodiments, the present application also provides a folding door, which includes the above-mentioned folding door latch lock device and also includes: an outer frame, a folding door drive assembly and a door body.
[0027] The outer frame includes a door frame and a door head frame; the folding door drive assembly is located in the door head frame, and the folding door drive assembly includes a gear ratio converter located on both sides of the door head frame along a first direction, wherein a door opening and closing position sensor is provided below the gear ratio converter along a second direction.
[0028] An electric door lock is provided at the top of the door body along the second direction and is located below the latch shaft sleeve, so that the insertion rod can be inserted into the latch shaft sleeve in sequence along the second direction.
[0029] By adopting the above technical solution, the plug rod of the latch assembly can be inserted into the electric door lock along the second direction, thereby locking the door body. The door opening and closing position detection device is located below the gear ratio converter, which can effectively sense the rotation angle of the gear ratio converter to sense the closing degree of the door body. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work, among which:
[0031] Figure 1 It is a schematic diagram of the planar structure of an embodiment of a folding door latch lock device provided by the utility model;
[0032] Figure 2 This is a schematic structural diagram of an embodiment of a folding door latch lock device provided by the utility model;
[0033] Figure 3 It is a partial structural enlarged view of an embodiment of a folding door latch lock device provided by the utility model;
[0034] Figure 4 This is a schematic diagram showing the connection between a self-locking piece and a power switch of a folding door latch lock device provided by the utility model;
[0035] Figure 5 It is a three-dimensional structural schematic diagram of an embodiment of a folding door provided by the utility model;
[0036] Figure 6 It is a front view of an embodiment of a folding door provided by the utility model.
[0037] In the figure:
[0038] Door head frame—10; latch shaft sleeve—11; door opening and closing position sensor 12—12; upper door sill—13; electric door lock—14; push rod assembly—20; push rod member—21; push rod tension spring—210; push rod linkage arm—211; driving device—22;
[0039] Lock body—30; first tooth plate—31; second tooth plate—32; key shaft—33; self-locking plate—34; spring positioning bead—340; power switch—35; transmission rod—40; transmission rod pin—41;
[0040] Latch assembly—50; insertion rod—51; latch bracket—52; compression spring—53; outer frame—60; door frame—61; folding door drive assembly—70; gear ratio converter—71; door body—80. DETAILED DESCRIPTION
[0041] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.
[0042] For the convenience of subsequent description, before describing the specific structure of the folding door latch lock device, this application first combines Figure 1 A first direction (X) and a second direction (Z) are defined. The first direction is the length direction of the folding door latch lock device when it is normally placed, such as the X direction; the second direction is the height direction of the folding door latch lock device when it is normally placed, such as the Z direction. In the present application, the first direction (X) and the second direction (Z) are perpendicular to each other.
[0043] See also Figure 1 to Figure 2 As shown, Figure 1 A schematic plan view of the structure of an embodiment of a folding door latch lock device provided by the present application is shown; Figure 2 A structural schematic diagram of an embodiment of a folding door latch lock device provided by the present application is shown.
[0044] In some embodiments, the folding door latch lock device includes: a door head frame 10, a push rod assembly 20, a lock body 30, a transmission rod 40 and a latch assembly 50.
[0045] The door head frame 10 is provided with latch shaft sleeves 11 at intervals along the first direction; the push rod assembly 20 includes a push rod member 21 that can be extended and retracted along the first direction; the lock body 30 includes a first tooth plate 31 and a second tooth plate 32, and the first tooth plate 31 can engage with the second tooth plate 32, wherein the first tooth plate 31 is rotatably connected to the push rod member 21.
[0046] The transmission rod 40 is symmetrically arranged on both sides of the lock body 30 along the first direction, and is respectively linked to the first tooth plate 31 and / or the second tooth plate 32; the latch assembly 50 includes an insertion rod 51, which is connected to the transmission rod 40, wherein the insertion rod 51 is inserted into the latch sleeve 11 along the second direction.
[0047] In the present application embodiment, combined Figure 1 and Figure 2As shown, the push rod assembly 20 also includes a driving device 22. For example, the driving device 22 can be driven by a motor or pneumatically, and this application does not limit this. When the push rod 21 pushes the first tooth piece 31 of the lock body 30 along the first direction, the first tooth piece 31 can rotate a certain angle in the clockwise direction under the thrust, thereby disengaging from the second tooth piece 32, and the transmission rod 40 is linked to the insertion rod 51 of the latch assembly 50, so that the insertion rod 51 can be retracted.
[0048] Specifically, when the push rod 21 extends, it drives the first tooth plate 31 and the second tooth plate 32 to separate, thereby driving the transmission rod 40 to rotate clockwise by a certain angle, so that the latch of the latch assembly 50 can automatically fall along the second direction to achieve the door locking action.
[0049] The push rod 21, the transmission rod 40 and the latch assembly 50 are linked quickly and tightly by the first tooth piece 31 and the second tooth piece 32, so that the folding door lock device has stronger stability and the connection between the components is also tighter. Compared with the door lock device currently arranged in the middle of the door body 80, the above structure enables the door lock device to have a stronger anti-impact, anti-pick and anti-fall effect.
[0050] Exemplarily, the latch assembly 50 also includes a latch bracket 52 and a compression spring 53. The latch bracket 52 is fixed to the bottom of the door head frame 10, and the insertion rod 51 passes through the latch bracket 52 and the compression spring 53 in sequence along the second direction, so that the extension and retraction direction of the insertion rod 51 is limited by the latch bracket 52, and the compression spring 53 is additionally provided to assist the downward movement of the insertion rod 51.
[0051] In some embodiments, the push rod member 21 includes a push rod tension spring 210 and a push rod linkage arm 211 . The push rod tension spring 210 can perform telescopic movement along a first direction, and the push rod linkage arm 211 is connected to the first tooth piece 31 .
[0052] In the embodiment of the present application, the push rod 21 is configured to be linked with two parts (i.e., the push rod tension spring 210 and the push rod linkage arm 211). For example, the push rod tension spring 210 is connected to the driving device 22 to achieve the telescopic action, and the push rod linkage arm 211 is connected to the first tooth piece 31 to drive the first tooth piece 31.
[0053] In some embodiments, one side of the transmission rod 40 is connected to the first tooth piece 31 or the second tooth piece 32, and the other side of the transmission rod 40 is connected to the insertion rod 51, wherein a transmission rod pin 41 is provided at the connection between the transmission rod 40 and the first tooth piece 31 or the second tooth piece 32.
[0054] In the embodiment of the present application, a transmission rod pin 41 is used as a rotational connection axis between the first tooth plate 31 , the second tooth plate 32 and the transmission rod 40 , which can transmit the torque of the first tooth plate 31 , the second tooth plate 32 while driving the rotation angle of the transmission rod 40 first.
[0055] In some embodiments, a plurality of door opening and closing position sensors 12 are provided at the bottom of the door head frame 10 along the second direction, and the plurality of door opening and closing position sensors 12 are arranged at intervals along the first direction.
[0056] In the embodiment of the present application, there are a total of four door opening and closing position sensors 12. In some application scenarios, they are located in the same vertical plane as the door axis body, so as to facilitate timely detection of whether the door body 80 is closed in place.
[0057] In some embodiments, an upper door sill 13 is provided at the bottom of the door head frame 10 along the second direction, and an electric door lock 14 is provided at the middle of the upper door sill 13 along the first direction, wherein an electrical controller is also provided in the door head frame 10 and is communicatively connected to the electric door lock 14 .
[0058] In the embodiment of the present application, the electric door lock 14 generally refers to a door lock system for electrical control, which can be remotely controlled through electronic signals. The electric door lock 14 is added to lock the door body 80 in the middle of the door head frame 10 to enhance the locking effect of the latch lock.
[0059] See also Figure 3 to Figure 4 As shown, Figure 3 The enlarged view of the partial structure of an embodiment of a folding door latch lock device provided by the present application is shown. Figure 4 A schematic diagram showing the connection between a self-locking piece 34 and a power switch 35 of a folding door latch lock device provided by the present application is shown.
[0060] In some embodiments, the lock body 30 is further provided with a key shaft 33, and the key shaft 33 is sleeved with a self-locking plate 34, and the self-locking plate 34 has a recess, wherein a power switch 35 is provided on one side of the key shaft 33 along the first direction, and the power switch 35 extends into the recess of the self-locking plate 34, so that when the key shaft 33 drives the self-locking plate 34 to rotate, the power switch 35 can be turned off.
[0061] In the present application embodiment, combined Figure 3 As shown, the key shaft 33 is in the shape of a triangular keyhole, so that a triangular key currently used for elevator maintenance can be inserted therein to realize manual unlocking, thereby performing maintenance and other operations on the elevator.
[0062] For example, in combination Figure 4As shown, when the self-locking plate 34 rotates, the power switch 35 can be toggled to turn off the power of the device. The self-locking plate 34 is also embedded with a plurality of spring positioning beads 340, which are used to elastically connect the self-locking plate 34, so that the self-locking plate 34 can only rotate to turn off the power switch 35 and push the second tooth plate 32 when the key shaft 33 is turned. When the key shaft 33 drives the self-locking plate 34 to rotate, the self-locking plate 34 can push the second tooth plate 32 to rotate.
[0063] See also Figure 5 As shown, Figure 5 A schematic diagram of the three-dimensional structure of an embodiment of a folding door provided by the present application is shown; Figure 6 A front view of an embodiment of a folding door provided by the present application is shown.
[0064] In some embodiments, the present application further provides a folding door, which includes the above-mentioned folding door latch lock device, and also includes: an outer frame 60, a folding door drive assembly 70 and a door body 80.
[0065] The outer frame 60 includes a door frame 61 and a door head frame 10; the folding door drive assembly 70 is located in the door head frame 10, and the folding door drive assembly 70 includes a gear ratio converter 71 located on both sides of the door head frame 10 along the first direction, wherein the gear ratio converter 71 is provided with a door opening and closing position sensor 12 below along the second direction.
[0066] An electric door lock 14 is provided at the top of the door body 80 along the second direction and is located below the latch shaft sleeve 11 , so that the insertion rod 51 can be sequentially inserted into the latch shaft sleeve 11 along the second direction.
[0067] In the embodiment of the present application, the insertion rod 51 of the latch assembly 50 can be inserted into the latch door shaft sleeve along the second direction, thereby locking and limiting the door body 80. The door opening and closing position detection device is located below the gear ratio converter 71, and can effectively sense the rotation angle of the gear ratio converter 71 to sense the closing degree of the door body 80.
[0068] Exemplarily, the folding door driving assembly 70 further includes a plurality of connecting rods, which are respectively connected to the U-shaped connector and the gear ratio converter 71 , thereby driving the door body 80 to fold and open.
[0069] The above description is only an implementation method of the present utility model, and does not limit the patent scope of the present utility model. Any equivalent structure or equivalent process transformation made using the contents of the specification and drawings of the present utility model, or directly or indirectly used in other related technical fields, should be included in the protection scope of the present utility model.
Claims
1. A folding door latch lock device, characterized in that: include: A door head frame, wherein the door head frame is provided with latch shaft sleeves at intervals along a first direction; A push rod assembly, the push rod assembly comprising a push rod member capable of extending and retracting along a first direction; A lock body, the lock body comprising a first tooth plate and a second tooth plate, the first tooth plate being capable of meshing with the second tooth plate, wherein the first tooth plate is rotatably connected to the push rod; A transmission rod, which is symmetrically arranged on both sides of the lock body along the first direction and is respectively linked to the first tooth piece and / or the second tooth piece; A latch assembly, comprising an insertion rod connected to the transmission rod, wherein the insertion rod can extend and retract the latch sleeve along a second direction.
2. The folding door latch lock device according to claim 1, characterized in that: One side of the transmission rod is connected to the first tooth piece or the second tooth piece, and the other side of the transmission rod is connected to the insertion rod, wherein a transmission rod pin is provided at the connection between the transmission rod and the first tooth piece or the second tooth piece.
3. The folding door latch lock device according to claim 1, characterized in that: The latch assembly also includes a latch bracket and a compression spring. The latch bracket is fixed to the bottom of the door head frame, and the insertion rod passes through the latch bracket and the compression spring in sequence along the second direction.
4. The folding door latch lock device according to claim 1, characterized in that: The lock body is also provided with a key shaft, and the key shaft sleeve is provided with a self-locking plate, and the self-locking plate has a recess, wherein a power switch is provided on one side of the key shaft along the first direction, and the power switch extends into the recess of the self-locking plate, so that when the key shaft drives the self-locking plate to rotate, the power switch can be turned off.
5. The folding door latch lock device according to claim 4, characterized in that: The self-locking plate is connected to the second tooth plate, so that when the key shaft drives the self-locking plate to rotate, the self-locking plate can push the second tooth plate to rotate.
6. The folding door latch lock device according to claim 5, characterized in that: The self-locking piece is also embedded with a plurality of spring positioning beads.
7. The folding door latch lock device according to claim 1, characterized in that: The push rod member includes a push rod tension spring and a push rod linkage arm. The push rod tension spring can perform telescopic movement along the first direction, and the push rod linkage arm is connected to the first tooth piece.
8. The folding door latch lock device according to claim 1, characterized in that: A plurality of door opening and closing position sensors are provided at the bottom of the door head frame along the second direction, and the plurality of door opening and closing position sensors are arranged at intervals along the first direction.
9. The folding door latch lock device according to claim 1, characterized in that: An upper door sill is provided at the bottom of the door head frame along the second direction, and an electric door lock is provided at the middle of the upper door sill along the first direction, wherein an electrical controller communicatively connected to the electric door lock is also provided in the door head frame.
10. A folding door, characterized in that: The folding door latch lock device according to any one of claims 1 to 8 further comprises: An outer frame, the outer frame comprising a door frame and a door head frame; A folding door drive assembly, the folding door drive assembly is located in the door head frame, the folding door drive assembly includes a gear ratio converter located on both sides of the door head frame along a first direction, wherein a door opening and closing position sensor is provided below the gear ratio converter along a second direction; The door body is provided with an electric door lock at the top of the door body along the second direction and is located below the latch shaft sleeve, so that the insertion rod can be inserted into the latch shaft sleeve in sequence along the second direction.