Door closing interlocking mechanism

Abstract

The utility model discloses a door closing interlocking mechanism, which is applied to a double door and comprises a pulling rod, the pulling rod is provided with a central shaft and is rotatably arranged around the central shaft, two ends of the pulling rod are respectively provided with a gravity block and a lock rod, the lock rod is correspondingly provided with a clamping groove arranged at the top of the door, and the gravity block is arranged at the top of the door. Under the condition of double doors, the second door is closed, the top edge of the door acts with the gravity block after the first door is closed again, the pulling rod rotates through the center shaft, the door top clamping groove of the second door is clamped, and therefore interlocking of the double doors is achieved. When the door is opened, the first door is opened firstly, the pulling rod droops due to gravity, the locking rod is separated from the clamping groove, and the second door is opened. The door opening sequence is limited, the interlocking effect is achieved, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of interlocking doors, in particular to a door closing interlocking mechanism. Background Art

[0002] For the opening of doors in some special occasions, such as bank safe doors, for safety reasons, it is necessary to limit the opening sequence of double doors to make entry and exit safer and play a certain protective role. However, traditional interlocking mechanisms have disadvantages such as complex structure, high failure rate, and difficulty in maintenance. Utility Model Content

[0003] The utility model aims to provide a door closing interlocking mechanism to solve one or more technical problems existing in the prior art and at least provide a beneficial choice or create conditions.

[0004] The technical solutions adopted to solve the above technical problems are:

[0005] The utility model provides a door closing interlocking mechanism, which is applied to a double door, comprising:

[0006] The pull rod is provided with a central axis, and the pull rod is rotatably arranged around the central axis. The two ends of the pull rod are respectively provided with a gravity block and a locking rod. The locking rod is correspondingly provided with a slot arranged on the top of the door, and the gravity block is arranged on the top of the door.

[0007] The beneficial effects of the utility model are:

[0008] In the case of double-door opening, the second door is closed, and the first door is closed again. The top edge of the door acts on the gravity block, causing the lever to rotate through the central axis and jam the top slot of the second door, thereby achieving interlocking of the double doors. When opening the door, open the first door first, the lever sags due to gravity, the lock rod is separated from the slot, and the second door is opened. The order of opening the doors is limited, the interlocking effect is achieved, and the structure is simple.

[0009] As a further improvement of the above technical solution, the double door includes a first door and a second door, the gravity block is arranged on the top of the first door, and the card slot is arranged on the top of the second door.

[0010] As a further improvement of the above technical solution, the gravity block is cylindrical, which is convenient for opening and closing the first door. When the first door is opened, the gravity block rubs against the top of the first door, and the friction needs to be overcome to open the door. The cylindrical shape reduces the contact surface with the top of the first door, thereby reducing the friction, which is convenient for opening the first door. At the same time, when closing the first door, the gravity block needs to be pushed up, and the curved surface of the cylindrical block plays a certain guiding role, which is convenient for closing the first door.

[0011] As a further improvement of the above technical solution, the outer side of the gravity block is wrapped with an anti-collision layer.

[0012] As a further improvement of the above technical solution, the anti-collision layer is an elastic layer.

[0013] As a further improvement of the above technical solution, it also includes a mounting plate, the central axis is arranged on the mounting plate, and the pull rod is slidably arranged on the mounting plate, so that the pull rod rotates in the same plane to prevent the interlocking structure from failing.

[0014] As a further improvement of the above technical solution, the pull rod is slidably arranged on the mounting plate.

[0015] As a further improvement of the above technical solution, the gravity block and the locking rod are both provided with a sliding portion slidably arranged on the mounting plate, so that the central axis rotates in the same plane to prevent the interlocking structure from failing.

[0016] As a further improvement of the above technical solution, the mounting plate is provided with an arc-shaped groove, and the sliding part is slidably arranged in the arc-shaped groove.

[0017] As a further improvement of the above technical solution, the locking rod is adjustable up and down on the pull rod. The position of the locking rod is adjusted according to the actual installation situation to facilitate opening the second door. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0019] Figure 1 This is a door closing interlocking mechanism provided by the utility model, a front view of an embodiment thereof, wherein two arrows indicate upward and downward directions respectively;

[0020] Figure 2 The utility model provides a door closing interlocking mechanism, and a side view of an embodiment thereof, wherein two arrows represent upward and downward directions respectively.

[0021] Reference numerals:

[0022] The pull rod 100 , the central axis 200 , the gravity block 300 , the locking rod 400 , the first door 500 , the second door 600 , the slot 610 , and the mounting plate 700 . DETAILED DESCRIPTION

[0023] This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

[0024] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do 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 therefore cannot be understood as a limitation on the present invention.

[0025] In the description of the present utility model, if there are words such as "several", it means one or more, "more" means more than two, greater than, less than, exceed, etc. are understood to exclude the number, and above, below, within, etc. are understood to include the number.

[0026] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0027] The traditional interlocking mechanism has the disadvantages of complex structure, high failure rate, and difficult maintenance. Therefore, the utility model further improves the door closing interlocking mechanism. Figure 1 to Figure 2 The door closing interlocking mechanism of the present invention is implemented as follows:

[0028] In some embodiments, a door closing interlock mechanism is applied to a double door, which includes a first door 500 and a second door 600. The first door 500 and the second door 600 are respectively a left door and a right door. In some other embodiments, the first door 500 and the second door 600 may also be respectively a right door and a left door.

[0029] The pull rod 100 is provided with a central axis 200, and the central axis 200 is fixed on the door frame. The pull rod 100 is rotatably arranged around the central axis 200. The two ends of the pull rod 100 are respectively provided with a gravity block 300 and a locking rod 400. The locking rod 400 is correspondingly provided with a slot 610 arranged at the top of the second door 600, and the gravity block 300 is arranged at the top of the first door 500.

[0030] In the case of double-door opening, the second door 600 is closed, and the first door 500 is closed again. The top edge of the door acts on the gravity block 300, so that the pull rod 100 rotates through the central axis 200 and jams the door top slot 610 of the second door 600, thereby realizing the interlocking of the double doors. When opening the door, the first door 500 is opened first, the pull rod 100 sags due to gravity, the locking rod 400 disengages from the slot 610, and the second door 600 is opened. The order of opening the doors is limited, the interlocking effect is achieved, and the structure is simple. When opening the door, the first door 500 must be opened first before the second door 600 can be opened, which meets the door opening requirements in special occasions. For example, when the second door 600 is a normally closed door, it can prevent people from accidentally opening the second door 600.

[0031] As a further improvement, the double door includes a first door 500 and a second door 600 , the gravity block 300 is disposed on the top of the first door 500 , and the card slot 610 is disposed on the top of the second door 600 .

[0032] As a further improvement, the gravity block 300 is cylindrical, which is convenient for opening and closing the first door 500. When the first door 500 is opened, the gravity block 300 rubs against the top of the first door 500, and the friction needs to be overcome to open the door, and the cylindrical shape reduces the contact surface with the top of the first door 500, thereby reducing the friction, which is convenient for opening the first door 500. At the same time, when closing the first door 500, the gravity block 300 needs to be pushed up, and the curved surface of the cylindrical block plays a certain guiding role, which is convenient for closing the first door 500. In other embodiments, the gravity block 300 can also be in other shapes such as a round cake or a sphere, and the utility model does not make specific restrictions.

[0033] As a further improvement, the outer side of the gravity block 300 is wrapped with an anti-collision layer, which is an elastic layer and can be made of plastic or rubber material.

[0034] Further improvement includes a mounting plate 700, the central axis 200 is arranged on the mounting plate 700, and the pull rod 100 is slidably arranged on the mounting plate 700, so that the pull rod 100 rotates in the same plane to prevent the interlocking structure from failing. Failure occurs when the locking rod 400 cannot be aligned with the card slot 610 and thus cannot be locked. Among them, the pull rod 100 is slidably arranged on the mounting plate 700, which has a better anti-collision effect. Specifically, the mounting plate 700 is provided with an arc-shaped slide groove, and the pull rod 100 is provided with a ball when rotating, and the ball slides in the slide groove to limit the pull rod 100 from rotating in the same plane. In some other embodiments, the slide groove is provided with a rib, and the ball is clamped with the inside of the rib.

[0035] In other embodiments, the gravity block 300 and the locking rod 400 are both provided with a sliding portion slidably disposed on the mounting plate 700, so that the central axis 200 rotates in the same plane to prevent the interlocking structure from failing.

[0036] In order to limit the moving track of the sliding part, the mounting plate 700 is provided with an arc groove, the sliding part is slidably arranged in the arc groove, and the sliding part is rotatably arranged on the gravity block 300 or the locking rod 400. The sliding part may include a plane ball bearing or a ball.

[0037] As a further improvement, the locking rod 400 is adjustable up and down on the pull rod 100. The position of the locking rod 400 is adjusted according to the actual installation situation to facilitate opening the second door 600. Specifically, the locking rod 400 is threadedly connected to the pull rod 100. The length of the locking rod 400 extending downward, that is, the clamping depth, is adjusted according to the width of the double door.

[0038] The preferred implementation modes of the present invention are specifically described above, but the invention is not limited to the embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention, and these equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A door closing interlocking mechanism, characterized in that: Its application in double doors includes: The pull rod is provided with a central axis, and the pull rod is rotatably arranged around the central axis. The two ends of the pull rod are respectively provided with a gravity block and a locking rod. The locking rod is correspondingly provided with a slot arranged on the top of the door, and the gravity block is arranged on the top of the door.

2. A door closing interlocking mechanism according to claim 1, characterized in that: The double-opening door comprises a first door and a second door, the gravity block is arranged on the top of the first door, and the card slot is arranged on the top of the second door.

3. A door closing interlocking mechanism according to claim 1, characterized in that: The gravity block is cylindrical.

4. A door closing interlocking mechanism according to claim 1, characterized in that: The outer side of the gravity block is wrapped with an anti-collision layer.

5. A door closing interlocking mechanism according to claim 4, characterized in that: The anti-collision layer is an elastic layer.

6. A door closing interlocking mechanism according to claim 1, characterized in that: It also includes a mounting plate, the central axis is arranged on the mounting plate, and the pull rod is slidably arranged on the mounting plate.

7. A door closing interlocking mechanism according to claim 6, characterized in that: The pulling rod is slidably arranged on the mounting plate.

8. The door closing interlocking mechanism according to claim 6, characterized in that: The gravity block and the locking rod are both provided with a sliding part slidably arranged on the mounting plate.

9. A door closing interlocking mechanism according to claim 8, characterized in that: The mounting plate is provided with an arc-shaped groove, and the sliding part is slidably arranged in the arc-shaped groove.

10. The door closing interlocking mechanism according to claim 1, characterized in that: The locking rod can be adjusted up and down on the pulling rod.

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