A latch and a double-leaf wooden door structure using the same

Abstract

The utility model discloses a latch and application this latch's double -open wooden door structure, the double -open wooden door structure includes the opposite arrangement female fan door and child fan door, the female fan door is provided with the switch handle of control lock tongue and insert or separate the locking groove of child fan door, the top of child fan door is provided with the latch, when female fan door and child fan door close simultaneously, the lock tongue of female fan door inserts the locking groove of child fan door, the compression resistance touch of latch's plug -in lock is pressed and is retracted by female fan door, the latch of plug -in lock is driven and is inserted into the locking hole of door top frame and is preset by the compression resistance touch and is stretched out, child fan door can be locked and fixed, when female fan door opens, the compression resistance touch is ejected and is separated from the compression of female fan door, the latch of plug -in lock resets and is retracted and is separated from the locking hole, and child fan door can be opened.

Description

Technical Field

[0001] This utility model relates to a lock structure and a door structure, and more particularly to a bolt lock and a double-opening wooden door structure using the bolt lock. Background Technology

[0002] In the prior art, a double-leaf wooden door structure includes a main door with a switch handle in the middle, and a secondary door with a rod at its upper or lower part (or both).

[0003] In current operation, the latch of the secondary door is first inserted into the slot in the door frame to secure it, and then the primary door is locked to the secondary door using a latch. In the event of a fire and the need for escape, the primary door is opened by operating its handle. This means that the secondary door requires manual operation of the latch, which clearly hinders rapid escape in a fire emergency. Therefore, it is necessary to improve the existing double-leaf wooden door structure and its locking mechanisms. Utility Model Content

[0004] This utility model addresses the shortcomings of existing technologies by providing a bolt lock and a double-opening wooden door structure using the bolt lock.

[0005] The bolt lock of this utility model is installed at the top corner of the door leaf and includes a bent fixing plate and a pressing drive part disposed on the inner side of the bent fixing plate.

[0006] The pressing drive unit includes a drive support frame and a pin rod support frame;

[0007] The pin support frame includes an upper horizontal support plate and a lower horizontal support plate fixedly installed on the upper part of the vertical plate of the bending fixing plate. A through hole is opened in the center of the upper horizontal support plate and the lower horizontal support plate, and the through hole is coaxial with the insertion hole on the horizontal top plate of the bending fixing plate. It also includes a pin, which vertically passes through the through holes of the upper horizontal support plate and the lower horizontal support plate, as well as the insertion hole on the horizontal top plate.

[0008] The drive support frame includes support plates extending rearward from both sides of the lower section of the upright plate of the bent fixing plate, and a transmission seat with an inclined portion is provided between the two support plates; it also includes a crank drive component and a vertical drive component.

[0009] One end of the crank drive is pivotally connected to the support plate, the other distal end is pivotally connected to the bottom of the vertical drive, and the other proximal end is provided with a transmission shaft, which abuts against the inclined part of the transmission seat.

[0010] The top of the vertical drive component is pivotally connected to the bottom of the pin rod;

[0011] It also includes a pressing and actuating tongue, which is retractable and extends outward through the lower section of the upright plate of the bent fixing plate;

[0012] When the pressing actuating tongue is squeezed and retracts, the transmission seat is squeezed by the pressing actuating tongue and retracts inward synchronously. Its inclined part pushes the opposite proximal end of the crank drive to rise, and drives the opposite distal end to rise.

[0013] The vertical drive member is pushed upward synchronously by the opposite distal end, and pushes the pin rod so that its end extends out of the insertion hole on the horizontal top plate.

[0014] In the bolt lock of this utility model, the bolt rod includes a guide sleeve and a rod inserted into the guide sleeve, and a buffer spring is provided between the rod and the guide sleeve for pushing the rod upward.

[0015] The bottom of the guide sleeve is pivotally connected to the top of the vertical drive member, and a return spring is provided at the lower part of the guide sleeve to push the guide sleeve downward.

[0016] The bolt lock of this utility model also includes a reset top plate disposed on the top of the vertical drive member, and the reset spring is placed between the reset top plate and the horizontal lower support plate.

[0017] The double-leaf wooden door structure using the above-mentioned bolt lock described in this utility model includes a main leaf door and a secondary leaf door that are arranged in opposite directions. The main leaf door is provided with a switch handle for controlling the insertion or disengagement of the bolt into the locking groove of the secondary leaf door.

[0018] The top of the sub-door is equipped with a bolt lock;

[0019] When the main door and the secondary door are closed at the same time, the latch of the main door is inserted into the locking groove of the secondary door, the pressing and abutting tongue of the bolt lock is pressed back by the main door and retracts, and the bolt rod of the bolt lock is driven by the pressing and abutting tongue to extend and insert into the locking hole of the door top frame, so that the secondary door can be locked and fixed.

[0020] When the main door is opened, the pressing tongue disengages from the main door and pops out, the bolt of the latch lock retracts and disengages from the locking hole, and the secondary door is opened.

[0021] In the double-leaf wooden door structure of this utility model, the bolt lock includes a bent fixing plate fixedly installed on the top of the sub-leaf door, and a pressing drive part disposed on the inner side of the bent fixing plate;

[0022] The pressing actuating tongue can extend and retract through the bent fixing plate from the side facing the mother door;

[0023] When the main door and the child door are closed at the same time, the retracted pressing actuating tongue drives the pin rod through the bending fixing plate from the side facing the top frame of the door and inserts it into the locking hole via the pressing driving part;

[0024] When the main door is opened, the pressing drive unit drives the pin rod to reset and retract, thus disengaging it from the locking hole.

[0025] In the double-opening wooden door structure described in this utility model, the pressing and driving part includes a driving support frame and a pin rod support frame;

[0026] The pin support frame includes a horizontal upper support plate and a horizontal lower support plate fixedly installed on the upper part of the vertical plate of the bending fixing plate. A through hole is opened in the center of the horizontal upper support plate and the horizontal lower support plate, and the through hole is coaxial with the insertion hole on the horizontal top plate of the bending fixing plate. The pin is vertically inserted through the through hole of the horizontal upper support plate and the horizontal lower support plate, as well as the insertion hole on the horizontal top plate.

[0027] The drive support frame includes support plates extending rearward from both sides of the lower section of the upright plate of the bent fixing plate, and a transmission seat with an inclined portion is provided between the two support plates; it also includes a crank drive component and a vertical drive component.

[0028] One end of the crank drive is pivotally connected to the support plate, the other distal end is pivotally connected to the bottom of the vertical drive, and the other proximal end is provided with a transmission shaft, which abuts against the inclined part of the transmission seat.

[0029] The top of the vertical drive component is pivotally connected to the bottom of the pin rod;

[0030] When the pressing actuating tongue is squeezed and retracted by the mother door, the transmission seat is squeezed and retracted inward synchronously by the pressing actuating tongue. Its inclined part pushes the other proximal end of the crank drive to rise, and drives the other distal end to rise.

[0031] The vertical drive member is pushed upward synchronously by the opposite distal end, and pushes the pin rod so that its end extends out of the insertion hole on the horizontal top plate.

[0032] In the double-leaf wooden door structure of this utility model, the pin rod includes a guide sleeve and a rod inserted into the guide sleeve, and a buffer spring is provided between the rod and the guide sleeve to push the rod upward.

[0033] The bottom of the guide sleeve is pivotally connected to the top of the vertical drive member, and a return spring is provided at the lower part of the guide sleeve to push the guide sleeve downward.

[0034] The double-opening wooden door structure of this utility model also includes a reset top plate disposed at the top of the vertical drive component, and the reset spring is placed between the reset top plate and the horizontal lower support plate.

[0035] In the bolt lock and double-leaf wooden door structure using the bolt lock described in this utility model, by setting a bolt lock on the sub-leaf door, the sub-leaf door can be automatically opened when the main door is opened in the event of a fire, thereby increasing the escape route and improving the fire response capability. Attached Figure Description

[0036] Figure 1 This is a schematic diagram of the double-opening wooden door structure using a bolt lock as described in this utility model;

[0037] Figure 2 This is an overall schematic diagram of the bolt lock described in this utility model;

[0038] Figure 3 This is an exploded view of the bolt lock described in this utility model. Detailed Implementation

[0039] The present invention will now be described in further detail with reference to the accompanying drawings, so that those skilled in the art can implement it based on the description.

[0040] like Figure 1 , Figure 2 , Figure 3As shown, the present invention relates to a bolt lock and a double-leaf wooden door structure using the bolt lock. The double-leaf wooden door includes a main door 11 and a secondary door 12, which are arranged in opposite directions. The main door 11 is provided with a handle 13 for controlling the bolt 130 to insert or disengage from the locking groove 120 of the secondary door 12. A bolt lock is provided at the top of the secondary door 12. When the main door 11 and the secondary door 12 are closed simultaneously, the bolt 130 of the main door 11 is inserted into the locking groove 120 of the secondary door 12. At the same time, the pressing actuating tongue 40 of the bolt lock is pressed back by the main door 11 and retracts. The bolt rod 30 of the bolt lock is driven by the pressing actuating tongue 40 to extend and insert into a pre-set locking hole in the top frame of the door, thereby locking the secondary door 11 in place. In other words, the sub-door 11 is fixed by inserting the bolt 30 into the locking hole, while the main door 12 is fixed by the protruding flange 121 on the edge of the sub-door 11 and the bolt 130 inserted into the locking groove 120. In the event of a fire, the bolt 130 is disengaged from the locking groove 120 by turning the switch handle 13 of the main door 11, thus opening the main door 11. When the main door 11 is opened, the pressing actuating tongue 40 will pop out due to disengagement from the pressing of the main door 11. At this time, the bolt 30 of the bolt lock will return to its original position and disengage from the locking hole, allowing the sub-door 12 to be opened as well, thereby increasing the escape route and improving the fire response capability.

[0041] In the bolt lock and double-leaf wooden door structure using the bolt lock described in this utility model, the bolt lock specifically includes a bent fixing plate 20 fixedly installed on the top of the sub-leaf door 12, and a pressing drive part disposed on the inner side of the bent fixing plate 20. The bent fixing plate 20 is disposed at the top corner of the sub-leaf door 12, and specifically includes a vertical plate 201 and a horizontal top plate 202 integrally bent and covering the top corner of the sub-leaf door 12. The lower part of the vertical plate 201 of the bent fixing plate 20 has a rectangular hole 2011 for the pressing actuating tongue 40 to extend out, and the horizontal top plate 202 of the bent fixing plate 20 has an insertion hole 2021 for the bolt rod 30 to pass through. The pressing actuating tongue 40 is retractable and extendable through the rectangular hole 2011 of the bent fixing plate 20 from the side facing the main leaf door.

[0042] When the main door 11 and the secondary door 12 are closed simultaneously, the main door 11 contacts and presses against the pressing actuating tongue 40, causing the pressing actuating tongue 40 to be in a retracted state. In the retracted state, the pressing actuating tongue 40, driven by the pressing drive, drives the pin rod 30 to pass through the insertion hole 2021 on the bent fixing plate 20 from the side facing the top frame and insert into the locking hole, thus fixing the secondary door 12. Simultaneously, the main door 11 is also fixed by the insertion of its locking tongue 130 into the locking groove 120 and the limiting position of the flange 121. When the main door 11 is opened via the switch handle 13, the pressing actuating tongue 40 disengages from the pressing of the main door 11. At this time, the pressing drive drives the pin rod 30 to reset and retract, disengaging from the locking hole. The pressing actuating tongue 40 is also driven by the pressing drive to pop out, allowing the secondary door 12 to open.

[0043] In the bolt lock and the double-leaf wooden door structure using the bolt lock described in this utility model, the pressing drive unit includes a drive support frame 4 and a bolt rod support frame 44. Specifically, the bolt rod support frame 44 includes a horizontal upper support plate 441 and a horizontal lower support plate 442 fixedly disposed on the upper section of the upright plate 201 of the bent fixing plate 20. (In a specific implementation, a frame 5 can also be separately disposed on the inner side of the bent fixing plate 20, and the front panel 50 of the frame 5 can be fitted and fixed to the inner wall of the upright plate 201 of the bent fixing plate 20 as a whole. The horizontal upper support plate 441 and the horizontal lower support plate 442 are then fixedly disposed on the frame.) (5 above) A through hole 443 is provided at the center of both the upper horizontal support plate 441 and the lower horizontal support plate 442. The through hole 443 is coaxial with the insertion hole 2021 on the horizontal top plate 202 of the bent fixing plate 20, so that the pin rod 30 can be vertically passed through the through hole 443 of the upper horizontal support plate 441 and the lower horizontal support plate 442, as well as the insertion hole 2021 on the horizontal top plate 202, and then inserted into the preset locking hole of the door top frame.

[0044] The drive support frame 4 specifically includes support uprights 52 extending backward from both sides of the lower section of the upright plate 201 of the bent fixing plate 20 (in this embodiment, they extend backward from both sides of the frame 5 which is integrally attached to the inner side wall of the upright plate 201 of the bent fixing plate 20), and a transmission seat 41 with an inclined portion 411 is provided between the two support uprights 52. It also includes a crank drive component 43 and a vertical drive component 42. One end 430 of the crank drive component 43 is pivotally connected to the support plate 52 through a rotating rod 431 inserted into a hole 520. The opposite distal end 436 is pivotally connected to the bottom of the vertical drive component 42 through a rotating rod 422, on which a bushing 423 is fitted. The opposite proximal end 435 is provided with a transmission shaft 433. Bushings 432 and 434 are respectively provided at both ends of the transmission shaft 433, and the transmission shaft 433 abuts against the inclined portion 411 of the transmission seat 41 through the bushings 432 and 434. The top of the vertical drive component 42 is pivotally connected to the bottom of the pin rod 30 through a shaft 421. When the pressing actuating tongue 40 is squeezed and retracted by the main door 11, the transmission seat 41 is also squeezed and retracted inward synchronously by the pressing actuating tongue 40. Its inclined portion 411 pushes the opposite proximal end 435 of the crank drive member 43 to rise, and drives the opposite distal end 436 to rise. The vertical drive member 42 is pushed and rises synchronously by the opposite distal end 436, and pushes the pin rod 30 so that its end extends out of the insertion hole 2021 on the horizontal top plate 202 and is inserted into the preset locking hole of the door top frame.

[0045] In the bolt lock and double-leaf wooden door structure using the bolt lock described in this utility model, the bolt rod 30 specifically includes a guide sleeve 32 and a rod 31 inserted into the guide sleeve 32. A buffer spring 34 is provided between the rod 31 and the guide sleeve 32 to push the rod 31 upward (the upper part of the buffer spring 34 is limited by the rod 35). When the bolt rod 30 is pushed upward by the vertical drive part 42, the front end of the rod 31 will insert into the locking hole of the top frame of the door; when the front end of the rod 31 is not completely aligned with the locking hole (i.e., the front end of the rod 31 has already pressed against the top frame of the door), the buffer spring 34 can be compressed, causing the rod 31 to move into the guide sleeve 32, preventing the rod 31 from being completely jammed with the top frame of the door and thus preventing the sub-leaf door from being closed. The bottom of the guide sleeve 32 is pivotally connected to the top of the vertical drive member 42 via a shaft 421. A return spring 33 is also provided at the lower part of the guide sleeve 32 to push the guide sleeve 32 downwards. Specifically, the top of the return spring 33 abuts against the lower surface of the lower support plate 442 to push the guide sleeve 32 downwards, preventing the pin rod 30 from extending and interfering with the door frame when not driven upwards. Simultaneously, the vertical drive member 42 and the crank drive member 43 maintain downward pressure on the transmission seat 41, allowing the transmission seat 41 to push the pressure-abutting tongue 40 out of the rectangular hole 2011. Furthermore, a return top plate 45 can be provided at the top of the vertical drive member 42, with the return spring 33 positioned between the return top plate 45 and the horizontal lower support plate 442.

[0046] Although the embodiments of this utility model have been disclosed above, they are not limited to the applications listed in the specification and embodiments. They can be applied to various fields suitable for this utility model. For those skilled in the art, other modifications can be easily made. Therefore, without departing from the general concept defined by the claims and their equivalents, this utility model is not limited to the specific details and the illustrations shown and described herein.

Claims

1. A bolt lock, installed at the top corner of a door leaf, characterized in that, It includes a bent fixing plate for fixing to the top corner of the door leaf and a pressing drive part disposed on the inner side of the bent fixing plate; The pressing drive unit includes a drive support frame and a pin rod support frame; The pin support frame includes an upper horizontal support plate and a lower horizontal support plate fixedly installed on the upper part of the vertical plate of the bending fixing plate. A through hole is opened in the center of the upper horizontal support plate and the lower horizontal support plate, and the through hole is coaxial with the insertion hole on the horizontal top plate of the bending fixing plate. It also includes a pin, which vertically passes through the through holes of the upper horizontal support plate and the lower horizontal support plate, as well as the insertion hole on the horizontal top plate. The drive support frame includes support plates extending rearward from both sides of the lower section of the upright plate of the bent fixing plate, and a transmission seat with an inclined portion is provided between the two support plates; it also includes a crank drive component and a vertical drive component. One end of the crank drive is pivotally connected to the support plate, the other distal end is pivotally connected to the bottom of the vertical drive, and the other proximal end is provided with a transmission shaft, which abuts against the inclined part of the transmission seat. The top of the vertical drive component is pivotally connected to the bottom of the pin rod; It also includes a pressing and actuating tongue, which is retractable and extends outward through the lower section of the upright plate of the bent fixing plate; When the pressing actuating tongue is squeezed and retracts, the transmission seat is squeezed by the pressing actuating tongue and retracts inward synchronously. Its inclined part pushes the opposite proximal end of the crank drive to rise, and drives the opposite distal end to rise. The vertical drive member is pushed upward synchronously by the opposite distal end, and pushes the pin rod so that its end extends out of the insertion hole on the horizontal top plate.

2. The bolt lock as described in claim 1, characterized in that, The pin includes a guide sleeve and a rod inserted into the guide sleeve, and a buffer spring is provided between the rod and the guide sleeve to push the rod upward. The bottom of the guide sleeve is pivotally connected to the top of the vertical drive member, and a return spring is provided at the lower part of the guide sleeve to push the guide sleeve downward.

3. The bolt lock as described in claim 2, characterized in that, It also includes a reset top plate disposed on the top of the vertical drive member, and the reset spring is placed between the reset top plate and the horizontal lower support plate.

4. A double-leaf wooden door structure using the bolt lock as described in claim 1, comprising a main door and a secondary door arranged in opposite directions, characterized in that, The main door is equipped with a switch handle for controlling the insertion or disengagement of the locking tongue into the locking groove of the sub-door; The top of the sub-door is equipped with a bolt lock; When the main door and the secondary door are closed at the same time, the latch of the main door is inserted into the locking groove of the secondary door, the pressing and abutting tongue of the bolt lock is pressed back by the main door and retracts, and the bolt rod of the bolt lock is driven by the pressing and abutting tongue to extend and insert into the locking hole of the door top frame, so that the secondary door can be locked and fixed. When the main door is opened, the pressing tongue disengages from the main door and pops out, the bolt of the latch lock retracts and disengages from the locking hole, and the secondary door is opened.

5. The double-leaf wooden door structure as described in claim 4, characterized in that, The bolt lock includes a bent fixing plate fixedly installed on the top of the sub-door, and a pressing drive part disposed on the inner side of the bent fixing plate; The pressing actuating tongue can extend and retract through the bent fixing plate from the side facing the mother door; When the main door and the child door are closed at the same time, the retracted pressing actuating tongue drives the pin rod through the bent fixing plate from the side facing the top frame of the door and inserts it into the locking hole via the pressing driving part; When the main door is opened, the pressing drive unit drives the pin rod to reset and retract, thus disengaging from the locking hole.

6. The double-leaf wooden door structure as described in claim 5, characterized in that, The pressing drive unit includes a drive support frame and a pin rod support frame; The pin support frame includes a horizontal upper support plate and a horizontal lower support plate fixedly installed on the upper part of the vertical plate of the bending fixing plate. A through hole is opened in the center of the horizontal upper support plate and the horizontal lower support plate, and the through hole is coaxial with the insertion hole on the horizontal top plate of the bending fixing plate. The pin is vertically inserted through the through hole of the horizontal upper support plate and the horizontal lower support plate, as well as the insertion hole on the horizontal top plate. The drive support frame includes support plates extending rearward from both sides of the lower section of the upright plate of the bent fixing plate, and a transmission seat with an inclined portion is provided between the two support plates; it also includes a crank drive component and a vertical drive component. One end of the crank drive is pivotally connected to the support plate, the other distal end is pivotally connected to the bottom of the vertical drive, and the other proximal end is provided with a transmission shaft, which abuts against the inclined part of the transmission seat. The top of the vertical drive component is pivotally connected to the bottom of the pin rod; When the pressing actuating tongue is squeezed and retracted by the mother door, the transmission seat is squeezed and retracted inward synchronously by the pressing actuating tongue, and its inclined part pushes the other proximal end of the crank drive to rise, and drives the other distal end to rise. The vertical drive member is pushed upward synchronously by the opposite distal end, and pushes the pin rod so that its end extends out of the insertion hole on the horizontal top plate.

7. The double-leaf wooden door structure as described in claim 6, characterized in that, The pin includes a guide sleeve and a rod inserted into the guide sleeve, and a buffer spring is provided between the rod and the guide sleeve to push the rod upward. The bottom of the guide sleeve is pivotally connected to the top of the vertical drive member, and a return spring is provided at the lower part of the guide sleeve to push the guide sleeve downward.

8. The double-leaf wooden door structure as described in claim 7, characterized in that, It also includes a reset top plate disposed on the top of the vertical drive member, and the reset spring is placed between the reset top plate and the horizontal lower support plate.

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