CN114046092A

CN114046092A - Airtight door lock

Info

Publication number: CN114046092A
Application number: CN202111297384.4A
Authority: CN
Inventors: 唐太林
Original assignee: Shanghai Safeone Industrial Co ltd
Current assignee: Shanghai Safeone Industrial Co ltd
Priority date: 2021-11-04
Filing date: 2021-11-04
Publication date: 2022-02-15

Abstract

The invention relates to the technical field of locks, and discloses an airtight door lock which comprises a lock shell, a poking component, a first locking component and a second locking component, wherein the lock shell is arranged on a door plate, the poking component is provided with a driving part and a transmission part, the transmission part is slidably arranged on the lock shell, and the driving part is connected with the transmission part; the first locking component is provided with a pressing block and a bottom box, the pressing block is fixedly connected with the transmission part, and the bottom box is arranged on the door frame; the second locking subassembly is provided with spring bolt and hasp box, and spring bolt swing joint is in the driving piece, and the hasp box is installed in the door frame, and when closing airtight door, the driving piece can be locked the shell relatively and rotate in order to drive the spring bolt and move into the hasp box, thereby it slides to drive the compact heap and move into end box to drive the driving medium simultaneously for airtight door closed back door plant has many places to compress tightly the point to the door frame, has improved airtight door's leakproofness.

Description

Airtight door lock

Technical Field

The invention relates to the technical field of locks, in particular to an airtight door lock.

Background

The airtight door is widely applied to the occasions such as a railway track area door, a medical door, a recording studio and the like, at present, after the airtight door is closed, the airtight door is mainly compressed and sealed through a lock tongue, and after the airtight door is closed, the pressure difference between the inside and the outside of the room is large or other external forces act on the airtight door body, so that a gap is generated between a door plate and a door frame, and the sealing effect of the airtight door is influenced.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides the airtight door lock, when the airtight door is closed, the door plate has a plurality of pressing points on the door frame, and the door plate can be attached to the door frame more tightly, so that the sealing performance of the airtight door is improved.

According to some embodiments of the invention, an airtight door lock comprises:

a lock case installed at the door panel;

the poking component is provided with a driving part and a transmission part, the transmission part is slidably arranged on the lock shell, and the driving part is connected with the transmission part;

the first locking assembly is provided with a pressing block and a bottom box, the pressing block is fixedly connected to the transmission piece, and the bottom box is installed on a door frame;

the second locking assembly is provided with a lock tongue and a lock catch box, the lock tongue is movably connected to the driving piece, and the lock catch box is installed on the door frame;

the driving piece can rotate relative to the lock shell to drive the lock tongue to move in or out of the lock catch box, and simultaneously drive the transmission piece to slide so as to drive the pressing block to move in or out of the bottom box.

According to the airtight door lock disclosed by the embodiment of the invention, at least the following beneficial effects are achieved: when closing airtight door, the driving piece drives the spring bolt and moves in the hasp box, it slides to drive the driving medium simultaneously, thereby make the driving medium drive compact heap and move in end box, spring bolt and compact heap are installed on the door plant, hasp box and end box are installed on the door frame, therefore, airtight door is closed the back, first locking subassembly and second locking subassembly can make the door plant have a plurality of pressure points to the door frame, deuterogamy door hinge, make the inseparabler laminating of airtight door's door plant at the door frame, avoid producing the clearance because of reasons such as indoor outer pressure difference between door plant and the door frame, the leakproofness of airtight door has been improved.

According to some embodiments of the invention, the airtight door lock is provided with two sets of first locking components, and the toggle component is provided with a first transmission piece and a second transmission piece corresponding to the two sets of first locking components.

According to some embodiments of the present invention, two sets of the back boxes are respectively installed on the upper and lower rims of the doorframe, and the lockboxes are installed on the rims of the doorframe opposite to the doorhinges.

According to some embodiments of the present invention, the toggle assembly further includes an elastic restoring member mounted to the lock housing and having a movable end connected to the first transmission member, the elastic restoring member having a tendency to cause the first transmission member to rotate the driving member such that the latch bolt moves into the keeper and the compact mass moves into the base housing.

According to some embodiments of the invention, the airtight door lock further comprises a guide assembly, the guide assembly is provided with a locking piece, the first transmission piece is provided with a clamping groove matched with the locking piece, and the locking piece can slide to be clamped into or separated from the clamping groove.

According to some embodiments of the invention, the guide assembly is further provided with a connecting rod, the first transmission member is provided with an avoidance groove matched with the connecting rod, the connecting rod penetrates through the avoidance groove and is connected to the locking sheet, the connecting rod can drive the locking sheet to slide along the axial direction of the connecting rod, and the first transmission member can move along the length direction of the avoidance groove.

According to some embodiments of the invention, the guide assembly further comprises a roller rotatably mounted at one end of the connecting rod, and a guide block mounted on the strike plate, wherein an arc-shaped guide surface is provided at one end of the guide block facing the roller, the lock case is provided with a through hole matching with the roller, and the roller can extend out of the through hole and roll on the guide surface.

According to some embodiments of the present invention, the guiding assembly further includes a spring, the spring is sleeved on the connecting rod, one end of the spring abuts against the first transmission member, the other end of the spring abuts against one end of the connecting rod, at which the roller is installed, and the spring has a tendency of pushing the roller out of the through hole by the connecting rod.

According to some embodiments of the present invention, the second locking assembly further comprises a keeper plate provided with an adjustment aperture, the keeper plate being adjustably mounted to the keeper by a fastener passing through the adjustment aperture.

According to some embodiments of the invention, the first transmission member is provided with a first guide groove, the lock shell is provided with a first guide pillar mounted in the first guide groove, and the first transmission member can move along the length direction of the first guide groove under the limit of the first guide pillar.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural view of an airtight door lock according to another embodiment of the present invention;

FIG. 2 is an exploded view of the airtight door lock according to another embodiment of the present invention;

fig. 3 is a schematic view of the internal structure of the airtight door lock according to one embodiment of the present invention;

FIG. 4 is an exploded view of a first locking assembly in accordance with another embodiment of the present invention;

FIG. 5 is a partial schematic structural view of a guide assembly according to another embodiment of the present invention;

FIG. 6 is an exploded view of the keeper of another embodiment of the present invention;

fig. 7 is an exploded view of the airtight door lock according to another embodiment of the present invention.

Reference numerals:

a lock case 100, a first guide post 110, a lock case 120, a lock case cover 130, a slide rail 140, a second guide post 150, a lock case mounting member 160, a limit pin 170, a third guide groove 180, and a through hole 190;

the toggle assembly 200, the driving member 210, the transmission member 220, the first transmission member 221, the slot 2211, the first guide slot 2212, the avoiding slot 2213, the second transmission member 222, the sliding slot 2221, the rotating handle 230, the shaft hole 240, the elastic reset member 250 and the rotating shaft 260;

the first locking component 300, the pressing block 310, the bottom case 320, the guide rod 330 and the sliding sleeve 340;

the second locking assembly 400, the keeper 410, the adjusting hole 411, the latch plate 420, the latch hole 421, the latch tongue 430, and the second guide groove 431;

a guide assembly 500, a locking tab 510, a spring 520, a roller 530, a guide block 540, a guide surface 541, an adjustment member 550, a link 560, and a roller mount 570.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, several means are one or more, and more means are two or more. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

The embodiments of the present application will be further explained with reference to the drawings.

Referring to fig. 1 to 3, in some embodiments of the present invention, the airtight door lock includes a lock case 100, a toggle assembly 200, a first locking assembly 300 and a second locking assembly 400, the lock case 100 is installed in a door panel, the toggle assembly 200 includes a driving member 210 and a transmission member 220, the driving member 210 is connected to the transmission member 220, the transmission member 220 is slidably installed in the lock case 100, and the driving member 210 can rotate relative to the lock case 100 to drive the transmission member 220 to slide; the first locking assembly 300 comprises a pressing block 310 and a bottom box 320, the pressing block 310 is fixedly connected to the transmission piece 220, the bottom box 320 is installed on the door frame, and the transmission piece 220 can drive the pressing block 310 to move out of or into the bottom box 320; the second locking assembly 400 includes a locking tongue 430 and a keeper 410, the locking tongue 430 is movably connected to the driving member 210, the keeper 410 is installed on the doorframe, and the driving member 210 can drive the locking tongue 430 to move into or out of the keeper 410. When the airtight door was closed, compact heap 310 moved in end box 320 to spring bolt 430 moved in hasp box 120, and at this moment, the door plant can have many places to compress tightly the point to the door frame, cooperates the door hinge again simultaneously, can make the inseparable laminating of door plant at the door frame, prevents to produce the clearance because of reasons such as indoor outer atmospheric pressure difference between door plant and the door frame.

Referring to fig. 1 and 4, in some embodiments of the present invention, the airtight door lock is provided with two sets of first locking assemblies 300, two bottom cases 320 are respectively installed on an upper frame and a lower frame of a doorframe, a keeper 410 is installed on a frame opposite to a doorframe on which a door hinge is installed, a toggle assembly 200 is provided with a first transmission member 221 and a second transmission member 222 corresponding to the two sets of first locking assemblies 300, the first transmission member 221 and the second transmission member 222 are respectively movably connected with a driving member 210, when the airtight door is closed, the two pressing blocks 310 are moved into the bottom case 320, the latch tongue 430 is moved into the keeper 410, therefore, the door frame can be pressed and locked by the upper part, the lower part and the middle part of the door plate through the two sets of first locking assemblies 300 and the second locking assemblies 400, and the door plate can be tightly attached to the door frame through the door hinge, so that gaps are prevented from being generated between the door plate and the door frame due to reasons such as indoor and outdoor air pressure difference.

In some embodiments of the present invention, the toggle assembly 200 further includes an elastic restoring member 250, the elastic restoring member 250 is mounted on the lock housing 100 and has a movable end movably connected to the first transmission member 221, the elastic restoring member 250 can drive the first transmission member 221 to slide, so that the first transmission member 221 drives the driving member 210 to rotate, the driving member 210 further drives the latch 430 to move into the keeper 410, and simultaneously drives the second transmission member 222 to slide, so as to drive the pressing block 310 to move into the bottom box 320.

It should be noted that the elastic reset element 250 may be an extension spring, one end of which is fixedly connected to the lock case 100 and the other end of which is fixedly connected to the first transmission element 221, or a torsion spring, one end of which is rotatably connected to the lock case 100 and the other end of which is rotatably connected to the first transmission element 221.

It should be further noted that, the first locking assembly 300 is further provided with a sliding sleeve 340, and the pressing block 310 can slide in the sliding sleeve 340 when moving in or out of the bottom case 320, so as to avoid the direct contact between the pressing block 310 and the door panel, and the sliding cannot be smooth due to too large friction force, and the friction force generated when the pressing block 310 slides in the sliding sleeve 340 can be reduced through the sliding of the pressing block 310 in the sliding sleeve 340, so that the air-tight door can be unlocked and locked more conveniently. And the compact heap 310 is connected with driving medium 220 through guide arm 330, and guide arm 330 is cylindrical, and it is more smooth and easy when making driving medium 220 drive compact heap 310 slide, also can reduce the installation degree of difficulty of airtight lock simultaneously.

Referring to fig. 6, in some embodiments of the present invention, the second locking assembly 400 further includes a locking plate 420, the locking plate 420 is mounted to the locking box 410, the locking plate 420 is provided with a locking hole 421 matched with the locking tongue 430, the locking tongue 430 can extend into the locking hole 421, an adjusting hole 411 is provided in the locking box 410, a fastening member is used to pass through the locking plate 420 and the adjusting hole 411, so that the locking plate 420 is fixed to the locking box 410, and when the position of the locking plate 420 needs to be adjusted, the position of the locking plate 420 can be adjusted by releasing the fastening member. After the door panel is tightly attached to the doorframe, the position of the latch plate 420 is adjusted according to the position of the latch 430, so that the latch 430 can perform a squeezing function when moving into the keeper 410, and the airtight door can be ensured to have good sealing performance. The fastening member may be a screw or a bolt, which can be fastened or loosened.

Referring to fig. 2, 3, 5 and 6, in some embodiments of the present invention, the airtight door lock is further provided with a guide assembly 500, wherein the guide assembly 500 is provided with a locking plate 510, the locking plate 510 is slidably mounted to the lock case 100, the first transmission member 221 is provided with a locking slot 2211 matched with the locking plate 510, and the locking plate 510 can slide to be locked into or unlocked from the locking slot 2211. When the door is opened, the driving member 210 is rotated, the driving member 210 drives the first transmission member 221 to slide, when the first transmission member 221 drives the pressing block 310 to retract into the door panel, the locking plate 510 can block the first transmission member 221, so that the first transmission member 221 cannot slide, the driving member 210 cannot rotate, the second transmission member 222 and the locking tongue 430 cannot slide, and at this time, the door panel is in an unlocked state, the pressing block 310 retracts into the door panel, and the locking tongue 430 retracts into the lock case 100, so that the pressing block 310 can be prevented from colliding with the ground or the door frame to damage the airtight door lock.

The guide assembly 500 is further provided with a connecting rod 560, the first transmission member 221 is provided with an avoiding groove 2213 matched with the connecting rod 560, the connecting rod 560 penetrates through the avoiding groove 2213 and is connected to the locking sheet 510, the connecting rod 560 can drive the locking sheet 510 to slide, and the first transmission member 221 can move along the length direction of the avoiding groove 2213. The guide assembly 500 is further provided with a roller 530 and a guide block 540, the roller 530 is rotatably mounted at one end of the link 560 by a mounting member of the roller 530, the guide block 540 is mounted on the latch plate 420, an arc-shaped guide surface 541 is provided at one end of the guide block 540 facing the roller 530, the lock case 100 is provided with a through hole 190 matching with the roller 530, and the roller 530 can extend out of the through hole 190 and roll on the guide surface 541. The connecting rod 560 is sleeved with a spring 520, one end of the spring 520 abuts against the first transmission member 221, and the other end abuts against the mounting member of the roller 530, and the spring 520 has a tendency that the connecting rod 560 pushes the roller 530 out of the through hole 190. When the door is closed, the roller 530 contacts the guide surface 541 and rolls on the guide surface 541, the roller 530 is pressed into the lock case 100 by the guide surface 541, thereby driving the locking plate 510 to slide, when the locking plate 510 slides out of the slot 2211, the first transmission member 221 slides under the driving of the elastic reset member 250, thereby driving the driving member 210 to rotate, so that the driving member 210 drives the latch tongue 430 to move into the keeper 410 and drives the second transmission member 222 to slide, thereby driving the pressing block 310 to move into the bottom case 320, and at this time, the airtight door lock is in a locked state. The guiding assembly 500 guides the user to close the door, so that the damage to the airtight door caused by the overlarge pressure applied to the door plate when the user closes the door can be avoided, and the situation that the airtight door cannot be successfully locked due to the overlarge pressure can be avoided. The convenience of the airtight door in use is improved.

It should be noted that the guiding block 540 is installed on the locking plate 420, and can move along with the position adjustment of the locking plate 420, the guiding block 540 can also be installed on the locking plate 420 through the adjusting piece 550, the guiding block 540 is installed in the adjusting piece 550 through a screw, and the adjusting piece 550 is fixed on the locking plate 420, and the length of the guiding block 540 extending can be adjusted by rotating the screw, so that when the roller 530 drives the locking piece 510 to slide out of the locking slot 2211, the locking tongue 430 can move into the locking box 410. Meanwhile, the guide surface 541 may also be a smooth inclined surface or a convex curved surface, and only the roller 530 needs to roll smoothly on the guide surface 541, and the roller 530 can be pressed into the lock case 100 to drive the locking piece 510 to slide out of the locking slot 2211.

In some embodiments of the present invention, the first guide post 110 is mounted on the lock case 100, the first transmission piece 221 is provided with a first guide slot 2212 matched with the first guide post 110, the first transmission piece 221 can move along the length direction of the first guide slot 2212 under the limitation of the first guide post 110, the first transmission piece 221 is further provided with a limit pin 170 in a penetrating manner, the lock case 100 is provided with a third guide slot 180 matched with the limit pin 170, the first transmission piece 221 can move along the third guide slot 180, and the movable end of the elastic reset piece 250 can be further rotatably connected to the limit pin 170, which facilitates the mounting of the whole structure. The second transmission member 222 is provided with a sliding slot 2221, the lock housing 100 is provided with a sliding rail 140 matching with the sliding slot 2221, and the second transmission member 222 slides on the sliding rail 140 through the sliding slot 2221, so as to drive the pressing block 310 to move.

In some embodiments of the present invention, the toggle assembly 200 includes a rotating handle 230 and a rotating shaft 260, the driving member 210 has a shaft hole 240, the rotating shaft 260 passes through the shaft hole 240, the two ends of the rotating shaft 260 are respectively provided with the rotating handle 230, and the rotating handle 230 can drive the rotating shaft 260 to rotate, so as to drive the driving member 210 to rotate. It should be noted that the rotating shaft 260 may be a triangular prism, a quadrangular prism or other shapes, and the shape of the shaft hole 240 corresponds to the shape of the rotating shaft 260, and only the driving member 210 needs to be driven to rotate.

Referring to fig. 7, in some embodiments of the invention, a cover of the lock case 100 is mounted to the lock case 100, and the cover of the lock case 100 encloses the components of the lock case 100 that mount the driving member 210, the transmission member 220, etc. The airtight door lock may be installed in a door panel in a concealed manner, and the lock case 100 are fixed in the door panel, and then connected to the turning handle 230. It is also possible to mount the lock case 100 in a pop-up manner by fixing the lock case 100 to the door panel via the lock case mounting member 160, mounting the lock case 120, and then attaching the turning handle 230.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the foregoing and various other changes, omissions and deviations in the form and detail thereof may be made without departing from the scope of this invention.

Claims

1. An airtight door lock, comprising: a lock case (100) mounted to the door panel;

the striking assembly (200) is provided with a driving part (210) and a transmission part (220), the transmission part (220) is slidably mounted on the lock shell (100), and the driving part (210) is connected to the transmission part (220);

the first locking assembly (300) is provided with a pressing block (310) and a bottom box (320), the pressing block (310) is fixedly connected to the transmission piece (220), and the bottom box (320) is installed on a door frame;

the second locking assembly (400) is provided with a locking tongue (430) and a lock catch box (410), the locking tongue (430) is movably connected to the driving piece (210), and the lock catch box (410) is arranged on the doorframe;

the driving element (210) can rotate relative to the lock case (100) to drive the lock tongue (430) to move into or out of the lock catch box (410), and simultaneously drive the transmission element (220) to slide so as to drive the pressing block (310) to move into or out of the bottom box (320).

2. The airtight door lock according to claim 1, wherein said airtight door lock is provided with two sets of first locking assemblies (300), said toggle assembly (200) being provided with a first transmission member (221) and a second transmission member (222) corresponding to said two sets of first locking assemblies (300).

3. The airtight door lock according to claim 2, wherein two sets of said bottom cases (320) are respectively installed to the upper and lower jambs of said doorframe, and said lockbox (410) is installed to the jamb opposite to the doorframe where the door hinge is installed.

4. The airtight door lock according to claim 2, wherein the toggle assembly (200) further comprises a resilient return member (250), the resilient return member (250) being mounted to the lock housing (100) and having a movable end connected to the first transmission member (221), the resilient return member (250) having a tendency to cause the first transmission member (221) to rotate the driving member (210) such that the latch tongue (430) moves into the keeper (410) while the pressing block (310) moves into the back box (320).

5. The airtight door lock according to claim 2, further comprising a guide assembly (500), wherein the guide assembly (500) is provided with a locking tab (510), the first transmission member (221) is provided with a slot (2211) matched with the locking tab (510), and the locking tab (510) is slidable to be snapped into or out of the slot (2211).

6. The airtight door lock according to claim 5, wherein the guiding assembly (500) is further provided with a connecting rod (560), the first transmission member (221) is provided with an avoiding groove (2213) for avoiding the connecting rod (560), the connecting rod (560) is arranged through the avoiding groove (2213) and connected to the locking piece (510), and the connecting rod (560) can drive the locking piece (510) to slide along the axial direction of the connecting rod (560).

7. The airtight door lock according to claim 6, wherein the guide assembly (500) further comprises a roller (530) and a guide block (540), the roller (530) is rotatably installed at one end of the link (560), the guide block (540) is installed at the catch plate (420), an end of the guide block (540) facing the roller (530) is provided with a guide surface (541) having an arc shape, the lock case (100) is provided with a through hole (190) matching the roller (530), and the roller (530) can be protruded out of the through hole (190) and rolled on the guide surface (541).

8. The door lock according to claim 7, wherein the guiding assembly (500) further comprises a spring (520), the spring (520) is sleeved on the connecting rod (560), one end of the spring (520) abuts against the first transmission member (221), the other end of the spring abuts against one end of the connecting rod (560) where the roller (530) is installed, and the spring (520) has a tendency to push the roller (530) out of the through hole (190).

9. The airtight door lock according to claim 3, wherein the first transmission member (221) is provided with a first guide slot (2212), the lock case (100) is provided with a first guide post (110) installed in the first guide slot (2212), and the first transmission member (221) can move along the length direction of the first guide slot (2212) under the limit of the first guide post (110).

10. The airtight door lock according to any one of claims 1 to 9, wherein the second locking assembly (400) further comprises a keeper plate (420), the keeper (410) being provided with an adjustment hole (411), the keeper plate (420) being adjustably mounted to the keeper (410) by a fastener passing through the adjustment hole (411).