CN221169048U - Auxiliary door closing device, door lock with auxiliary door closing device and swing door - Google Patents

Abstract

The utility model discloses an auxiliary door closing device, a door lock with the same and a swinging door. Wherein, this supplementary door closing device is used for carrying out supplementary reset to the first door body of swing door, includes: a first base provided to an edge portion of the first door body other than the swing base; a second base provided at a position facing the first base with a gap therebetween when the first door body is in a door-closed position; the first absorbing member is attached to one of the first base and the second base so as to be stretchable in a direction in which the first base and the second base face each other when the first door body is in the door-closed position, and is capable of being absorbed to the other one of the first base and the second base based on magnetic force. The auxiliary door closing device can assist in keeping the first door body at the door closing position.

Description

Auxiliary door closing device, door lock with auxiliary door closing device and swing door

Technical Field

The utility model relates to the technical field of door locks, in particular to an auxiliary door closing device, a door lock with the same and a swinging door with the same.

Background

Swing doors are widely used in gates in places such as offices, shops, etc., and can be pushed to swing from the inside or the outside, thereby facilitating the entrance and exit of personnel. As a door lock structure of such a door structure, for example, a door lock having a bolt (for example, a main lock) is known to be mounted on a door body of a swing door, and a door lock having a lock hole (for example, a sub lock) is known to be mounted on a door frame or another door body. When such swing doors are locked, it is necessary to hold the door body in an intermediate position (also referred to as a closed door position) before the locking bolt is inserted into the locking hole. In the case of a swing door, since the door body can swing freely clockwise or counterclockwise with reference to the position of the door closing, in the conventional swing door, an auxiliary reset mechanism is usually provided at the position of the hinge of the door body, for example, so that the door body can be positioned at an intermediate position without an external force, thereby conveniently locking the door.

However, even with such an auxiliary reset mechanism, there is still a problem in that the door body cannot be accurately positioned in the door-closed position due to various reasons such as the use period or improper operation, thereby causing misalignment of the locking tongue and the locking hole.

Disclosure of utility model

In view of this, the present utility model proposes an auxiliary door closing device capable of assisting in keeping a door body in a door closing position. In addition, the utility model also provides a door lock with the device and a swinging door.

An auxiliary door closing device according to a first aspect of the present utility model is for performing auxiliary reset of a first door body of a swing door, and includes: a first base provided to an edge portion of the first door body other than the swing base; a second base provided at a position facing the first base with a gap therebetween when the first door body is in a door-closed position; the first absorbing member is attached to one of the first base and the second base so as to be stretchable in a direction in which the first base and the second base face each other when the first door body is in the door-closed position, and is capable of being absorbed to the other one of the first base and the second base based on magnetic force.

According to the auxiliary door closing device of the first aspect, the first door body can be held in the door closing position in an auxiliary manner.

In some embodiments, the swing door further comprises a second door body, the first door body and the second door body being mounted on both sides of the door frame, respectively; the first base is provided to a first distal end portion of the first door body remote from the swing base thereof; the second base is provided to a second distal end portion of the second door body remote from the swing base thereof.

In some embodiments, the second base is disposed on a door frame.

In some embodiments, the first base is formed with a mounting groove, and the first base is mounted to the edge portion in such a manner that a portion of the edge portion protrudes into the mounting groove.

In some embodiments, the door further includes a second adsorbing member attached to the other of the first base and the second base so as to be stretchable in a direction in which the first base and the second base face each other when the first door is in the door-closed position, and being adsorbable by the first adsorbing member based on magnetic force so as to be mutually attached to the first adsorbing member in a direction in which the first base and the second base face each other.

In some embodiments, at least one of the first and second suction members is a magnet.

In some embodiments, the first base and the second base are laterally opposite each other; the first base is provided with a first telescopic structure which is telescopic along the transverse direction, and the first adsorption piece is arranged on the first base in a telescopic way along the transverse direction through the first telescopic structure.

In some embodiments, the first telescoping structure comprises: a first guide hole formed at the first base; a first guide slidably received in the first guide hole; the first suction member is mounted to one axial end of the first guide member.

In some embodiments, the first base is provided with a swingably telescopic structure, and the first adsorbing member is swingably mounted to the first base with respect to the first base through the first telescopic structure.

In some embodiments, the first telescoping structure comprises: the support shaft is arranged on the first base; a swing lever swingably attached to the support shaft with respect to the support shaft; the first adsorption member is mounted to the swing lever.

A door lock according to a second aspect of the present utility model, which is usable for locking a swing door, has a main lock attached to a first door body of the swing door and a sub lock which is lockable with the main lock, the sub lock being attached to a position opposed to the main lock with a gap therebetween when the first door body is in a door-closing position, the door lock being provided with the auxiliary door closing device of any one of the above; the first base is arranged on the main lock, and the second base is arranged on the auxiliary lock.

According to the door lock of the second aspect, the first door body can be assisted to be held in the door-closed position.

The swinging door according to the third aspect of the present utility model comprises a first door body and a door frame, wherein the first door body is swingably installed on the door frame, and the first door body can swing clockwise and counterclockwise relative to a door closing position, and further comprises an auxiliary door closing device according to any one of the above.

According to the swing door of the third aspect, the first door body can be held in the door-closed position with assistance.

According to the fourth aspect of the utility model, the swinging door comprises a first door body and a door frame, wherein the first door body is arranged on the door frame in a swinging way, and can swing clockwise and anticlockwise relative to a door closing position, and the swinging door further comprises the door lock.

According to the swing door of the fourth aspect, the first door body can be assisted to be held in the door-closed position.

Drawings

Fig. 1 is a schematic view of an embodiment of a swing door with an auxiliary door closing device of the present utility model.

Fig. 2 is a schematic view of an embodiment of the auxiliary door closing device according to the utility model, seen from one side.

Fig. 3 is a schematic view of the auxiliary door closing device of fig. 2, seen from the other side.

Fig. 4 is a cross-sectional view taken along A-A in fig. 2.

Fig. 5 is a cross-sectional view taken along A-A in fig. 2 showing another embodiment.

Fig. 6 is a schematic view of an embodiment of a door lock with an auxiliary door closing device according to the utility model.

Fig. 7 is a schematic view of another embodiment of a swing door having an auxiliary door closing device of the present utility model.

Fig. 8 is a schematic view of another embodiment of a swing door inlaid with a door lock having an auxiliary door closing device of the present utility model.

Detailed Description

Examples of the present embodiment are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The examples described below by referring to the drawings are illustrative only for the explanation of the present embodiment and are not to be construed as limiting the present embodiment.

In the description of the present embodiment, it should be understood that the direction or positional relationship indicated with respect to the direction description, such as up, down, front, rear, left, right, etc., is based on the direction or positional relationship shown in the drawings, is merely for convenience of describing the present embodiment and simplifying the description, and does not indicate or imply that the device or element to be referred to must have a specific direction, be configured and operated in the specific direction, and thus should not be construed as limiting the present embodiment.

In the description of the present embodiment, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and greater than, less than, exceeding, etc. are understood to exclude the present number, and the meaning of above, below, within, etc. are understood to include the present number. The description of the first and second is for the purpose of distinguishing between technical features only and should not be construed 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 embodiment, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly, and those skilled in the art may reasonably determine the specific meaning of the above terms in the present embodiment in combination with the specific contents of the technical solution.

Referring to fig. 1, before explaining the auxiliary door closing device 100 of the embodiment, a typical structure of the swing door 300 will be described generally. For example, the swing door 300 includes a door frame 301 embedded in a wall body, and a door body 302 swingably mounted on the door frame 301. The door frame 301 defines a substantially rectangular space, and the door body 302 may have a rectangular plate shape or a rectangular frame shape, for example, in the case where the door body 302 is a glass door, the door body 302 has a rectangular plate shape, and in the case where the door body 302 is formed by welding a stainless steel press or a profile, the door body 302 has a rectangular frame shape. The swing door 300 may be a single door structure or a side-by-side door structure. In the case of the single door structure, the width of the door body 302 in the lateral direction extends across substantially the entire lateral direction of the door frame 301. In the case of the side-by-side door structure, the width of the two door bodies 302 in the lateral direction is substantially across the entire lateral direction of the door frame 301.

The door body 302 has a swing base 303 on one side in the lateral direction and other edge portions as other edge portions, including portions of the door body 302 other than the swing base 303, more specifically, including: an upper end 305 of the door body 302 opposite to the upper beam 304 of the door frame 301, a lower end 307 opposite to the lower beam 306 or floor of the door frame 301, and a distal end 308 along a side of the door body 302 remote from the swing base 303. In one example, the swing base 303 of the door body 302 is attached to one end of the upper beam 304 and the lower beam 306 of the door frame 301 in the lateral direction by a hinge (not shown), for example, so as to be capable of swinging clockwise or counterclockwise about one side of the door frame 301 in the lateral direction with respect to the door closing position. The hinge has a damping structure (not shown), for example, which allows the door body 302 to automatically return to a closed door position (i.e., a position where the door body 302 straddles the door frame 301) without the action of external force.

In the case of the side-by-side door structure, the swing bases 303 of the two door bodies 302 (for example, a first door body 309 and a second door body 310 described later) are swingably fixed to both lateral sides of the upper beam 304 and the lower beam 306 of the door frame 301, respectively, and in a state of being in the door-closed position, the distal end portions 308 of the two door bodies 302 (for convenience of distinction, the distal end portion 308 of the "first door body 309" will be referred to as a "first distal end portion 311" and the distal end portion 308 of the "second door body 310" will be referred to as a "second distal end portion 312" will be referred to as a "second distal end portion 311") are opposed to each other substantially in the middle of the door frame 301 in the lateral direction. Note that, in the side-by-side door structure, both the door bodies 302 may be configured to swing clockwise and counterclockwise, or one door body 302 may be configured to swing clockwise and counterclockwise, and the other door body 302 may be configured to swing only clockwise or counterclockwise (for example, a structure in which an electromagnet is mounted on the upper beam 304 of the door frame 301).

In the case where the swing door 300 is of a single door structure, the main lock 201 of the door lock 200 is mounted to the door body 302, for example, the main lock 201 is mounted to a distal end portion 308 of the door body 302. The secondary lock 202 of the door lock 200 may be mounted to the side of the door frame 301 opposite the distal end 308 of the door body 302. In the case of the swing door 300 having a side-by-side door structure, the main lock 201 of the door lock 200 is mounted to the distal end 308 (e.g., the first distal end 311) of one door body 302 (e.g., the first door body 309), and the sub-lock 202 of the door lock 200 is mounted to the distal end 308 (e.g., the second distal end 312) of the other door body 302 (e.g., the second door body 310).

Since at least one door body 302 can swing clockwise or counterclockwise relative to the closed door position, in the event of an error in the damping structure corresponding to the door body 302, for example, it may result in the door body 302 not automatically returning to the closed door position entirely in the event of an external force being lost. When the door body 302 cannot be automatically and completely reset to the door closing position, the lock tongue 203 of the door lock 200 may be displaced from the lock hole 204 when the door needs to be locked, and the operator needs to lock the door after completely resetting the door body 302 to the door closing position.

Referring to fig. 1 to 8, and mainly to fig. 2 to 4 with auxiliary reference to fig. 1, the auxiliary door closing device 100 according to embodiment 1 is used for auxiliary resetting of a door body 302 of a swing door 300. The auxiliary door closing device 100 includes: a first base 101, a second base 102, and a first adsorbing member 103. The first base 101 is provided to the other edge portion (e.g., the first distal end portion 311) of the first door 309 other than the swing base 303. The second base 102 is provided at a position facing the first base 101 with a gap G1 therebetween when the first door 309 is in the door-closed position. The first adsorbing member 103 is attached to one of the first base 101 and the second base 102 in a manner that it is stretchable in a direction in which the first base 101 and the second base 102 face each other when the first door 309 is in the door-closed position, and is adsorbable to the other of the first base 101 and the second base 102 based on magnetic force.

Embodiment 1 assists the door closer 100 to assist in maintaining the first door 309 in the closed position. Specifically, by providing the first base 101 on the first door 309, providing the second base 102 at a position opposed to the first base 101 across the gap G1 when the first door 309 is in the door-closed position, and mounting the first telescopic adsorbing member 103 in the first base 101 and the second base 102, since the first adsorbing member 103 is mounted on one of the first base 101 and the second base 102 and can be adsorbed to the other of the first base 101 and the second base 102 based on magnetic force, when the first door 309 is close to the door-closed position, the other of the first adsorbing member 103 and the first base 101 and the second base 102 is adsorbed to be attached to each other, and since the first base 101 and the second base 102 are pulled to be opposed to each other, that is, the first door 309 is pulled to be reset to the door-closed position, and since the other of the first adsorbing member 103 and the first base 101 and the second base 102 is held by the magnetic force, it is possible to assist in keeping the first door 309 in the door-closed position. This can improve the positioning accuracy of the lock tongue 203 and the lock hole 204 of the swing door 300 to which the door lock 200 is attached.

The auxiliary door closing device 100 of the embodiment can be installed as a separate structure in the swing door 300 of the side-by-side combination door structure. As described above, the swing door 300 of the side-by-side combination structure includes the first door body 309 and the second door body 310, and the first door body 309 and the second door body 310 are respectively installed at both sides of the door frame 301. The first base 101 of the auxiliary door closing device 100 is provided to a first distal end 311 of the first door 309 remote from its swing base 303, and the second base 102 is provided to a second distal end 312 of the second door 310 remote from its swing base 303. The first base 101 and the second base 102 are opposed to each other in the lateral direction. Specifically, for example, in the swing door 300 having the door lock 200 that has been used, when the first door 309 and/or the second door 310 cannot be automatically reset to the door-closed position due to the increase in the service life, the auxiliary door closing device 100 of the embodiment may be installed among the first door 309 and the second door 310.

In the case where the auxiliary door closing device 100 is mounted on the swing door 300 of the side-by-side combination door structure, the structures of the first base 101 and the second base 102 are substantially the same, and therefore, the first base 101 will be mainly described herein as an example, and the structure of the second base 102 will be mentioned only when necessary or when the structures are different.

With continued reference to fig. 2 and 3, the first base 101 is formed with an installation groove 104, and the first base 101 is attached to the edge portion of the first door 309 such that the edge portion of the first door 309 extends into the installation groove 104. More specifically, the first base 101 is attached to the first distal end portion 311 of the first door 309 in such a manner that a portion of the first distal end portion 311 of the first door 309 protrudes into the mounting groove 104. The first base 101 is integrally formed in a U shape. The first base 101 includes a first clamping portion 105, a second clamping portion 106 parallel to the first clamping portion 105 and spaced apart from the first clamping portion 105, and a connecting portion 107 connecting the first clamping portion 105 and the second clamping portion 106. The first clamping portion 105 and the second clamping portion 106 are opposed to each other with a gap therebetween, thereby forming the mounting groove 104. In a state of being attached to the first door 309, the first clamping portion 105 and the second clamping portion 106 are located on both sides in the thickness direction of the first door 309, respectively, and the connecting portion 107 is located on one side of the end face of the first distal end portion 311.

The first base 101 may be fastened to the first door 309 by clamping. For example, the first clamping portion 105, the second clamping portion 106, and the connection portion 107 may be integrally formed of various materials such as aluminum alloy, plastic, iron-based cold plate, stainless steel plate, etc., and the width of the installation groove 104 is greater than the thickness of the first door 309. One of the first clamping portion 105 and the second clamping portion 106 (for example, the second clamping portion 106) is formed with one or more adjustment screw holes 108. The adjusting plate 109 is disposed in the mounting groove 104, and the sum of the thickness of the adjusting plate 109 and the thickness of the first door 309 is slightly smaller than the thickness of the first door 309. The adjustment plate 109 may be a plastic material having a cushioning property such as nylon, polyurethane, or the like, or may be a metal member such as an aluminum alloy, a cold plate, stainless steel, or the like. When mounted, the first door 309 is opposed to the first clamping portion 105, and the adjustment plate 109 is opposed to the second clamping portion 106. An adjustment screw (not shown) is attached to the adjustment screw hole 108 of the second clamping portion 106, and when the adjustment screw is fed in the direction of the first clamping portion 105, the adjustment screw pushes the adjustment plate 109 to be attached to the first door 309, whereby the adjustment plate 109 and the first clamping portion 105 clamp the first door 309 together, and the first base 101 is fixed to the first door 309.

With continued reference to fig. 4, as described above, the first adsorption member 103 is mounted to one of the first base 101 and the second base 102 (e.g., the first base 101). In some embodiments, the first base 101 is provided with a first telescopic structure 110 that is telescopic in the lateral direction, and the first absorbent member 103 is mounted to the first base 101 by the first telescopic structure 110 in the lateral direction. The first telescopic structure 110 includes: a first guide hole 111 formed in the first base 101, and a first guide 112 slidably received in the first guide hole 111. An end of the first clamping portion 105 of the first base 101 adjacent to the connecting portion 107 is formed with a receiving chamber 113 for receiving the first adsorbing member 103. The first guide hole 111 extends in the lateral direction of the first base 101 and has one end communicating with the accommodating chamber 113. The first guide member 112 may be a pin member having a step, and the small diameter portion of the first guide member 112 may freely slide in the first guide hole 111, and the large diameter portion of the first guide member 112 may be exposed at the opposite side of the first guide hole 111 from the receiving cavity 113 and restrict the first guide member 112 from falling off toward the receiving cavity 113. The first guide 112 is formed at one end thereof located in the receiving chamber 113 with a screw hole 114 for mounting, and the first suction member 103 is mounted to one end of the first guide 112 located in the receiving chamber 113 by, for example, screw locking. Thus, the first suction member 103 is telescopically mounted to the first base 101 by the first telescopic structure 110. When contracted, the first guide 112 slides along the first guide hole 111 toward the opposite side from the first adsorbing member 103, whereby the first adsorbing member 103 is received in the receiving chamber 113 and does not protrude from the side of the end face of the first base 101 at the first distal end portion 311. When protruding, the first guide 112 slides along the first guide hole 111 toward one side of the first adsorption member 103, whereby the first adsorption member 103 protrudes from the accommodation chamber 113.

The auxiliary door closing device 100 of the embodiment further includes a second suction member 115, and the second suction member 115 is attached to the other of the first base 101 and the second base 102 so as to be stretchable in a direction in which the first base 101 and the second base 102 face each other when the first door 309 is in the door closing position, and is suctioned by the first suction member 103 based on a magnetic force so as to be mutually attached to the first suction member 103 in a direction in which the first base 101 and the second base 102 face each other. Specifically, the second chassis 102 is also provided with a second telescopic structure 116 that is telescopic in the lateral direction, and the second absorbent member 115 is mounted to the second chassis 102 by the second telescopic structure 116 in the lateral direction. The second telescopic structure 116 is provided with reference to the first telescopic structure 110, for example, the second telescopic structure 116 also includes: a second guide hole 117 formed in the second base 102, a second guide 118 slidably accommodated in the second guide hole 117, and the like, and the second guide hole 117 and the second guide 118 are also provided with reference to the first guide hole 111 and the first guide 112, respectively.

When the first door 309 and the second door 310 are in the door-closed position, the first base 101 and the second base 102 face each other with the gap G1 therebetween. This gap G1 can prevent the first base 101 and the second base 102 from colliding with each other when the first door 309 and the second door 310 swing independently. Further, the gap G1 enables the first absorbent element 103 and the second absorbent element 115 to be effectively attached to or detached from each other. Specifically, the first absorbing member 103 and the second absorbing member 115 extend a distance of approximately half of the distance of the gap G1 with respect to the first base 101 and the second base 102, respectively, and the first absorbing member 103 and the second absorbing member 115 are attracted to each other by magnetic force, and when the first door body 309 and the second door body 310 are brought close to each other in the door closing position, the first absorbing member 103 and the second absorbing member 115 are exposed to the magnetic force of each other, respectively, and finally extend with respect to the first base 101 and the second base 102, respectively, and are brought into contact with each other, whereby the first door body 309 and the second door body 310 can be assisted pulled to return to the door closing position, and the positions of the first door body 309 and the second door body 310 are maintained in a state of being returned to the door closing device, whereby the lock tongue 203 and the lock hole 204 can be ensured to be correctly aligned.

By forming the gap G1 between the first base 101 and the second base 102, the first suction member 103 and the second suction member 115 can be ensured to be freely retracted and extended with respect to the first base 101 and the second base 102, respectively, within a limited stroke, and interference between the first suction member 103 and the second suction member 115 and the like can be suppressed.

At least one of the first adsorbing member 103 and the second adsorbing member 115 is a magnet. For example, the first and second absorbers 103 and 115 may be respectively cylindrical magnets and be respectively fixed to the first and second guides 112 and 118 in a magnetically opposite manner, whereby a magnetic force between the first and second absorbers 103 and 115 can be increased, ensuring that the first and second doors 309 and 310 can be maintained in a door-closed position based on the magnetic force. In the case where the first and second suction members 103 and 115 are magnets, the materials of the first and second bases 101 and 102 are preferably non-magnetic materials such as aluminum alloy, plastic, and stainless steel. In addition, one of the first adsorbing element 103 and the second adsorbing element 115 may be a magnet, and the other may be a metal element (e.g., iron material) that can be adsorbed by the magnet.

Since the first adsorption member 103 is installed at one of the first and second bases 101 and 102 and can be adsorbed to the other one of the first and second bases 101 and 102 based on magnetic force, thereby, the first door 309 can be pulled to be reset to the door-closed position and assist in maintaining it in the door-closed position.

Since the first base 101 has the mounting groove 104 and is fastened to the first door body 309 by being clamped by extending the first distal end portion 311 of the first door body 309 into the mounting groove 104, the first base 101 can be easily mounted, and even in the case of retrofitting the existing swing door 300, the first base 101 can be easily mounted.

Since the first absorbent member 103 is attached to the first base 101 by the first telescopic structure 110 that is telescopic in the lateral direction, the first absorbent member 103 can be easily attracted to or detached from the second base 102. For example, when the first door 309 approaches the second base 102, the first adsorbing member 103 can be quickly adsorbed with respect to the second base 102 due to the magnetic force, and thereby pull the first door 309 to return to the closed door position. When the first door 309 is separated from the second base 102, the first suction member 103 is mounted on the first telescopic structure 110, and thus can be retracted with respect to the first base 101, suppressing the first suction member 103 from continuously striking the second base 102, and so on.

Since the auxiliary door closer 100 includes the first suction member 103 and the second suction member 115, respectively, the first suction member 103 and the second suction member 115 can be further quickly sucked or separated, and the first door 309 and the second door 310 can be more reliably held in the door closing positions, and rattling or the like of the both can be suppressed. When the two doors are opened, the two can be retracted to each other, thereby suppressing interference between the two.

Although the example in which the first base 101 and the second base 102 are provided in the first door 309 and the second door 310, respectively, is described above, it is not limited thereto. For example, in the case where the swing door 300 has a single door structure, the second base 102 may be provided on the door frame 301, and when the door body 302 is in the door closing position, the first base 101 and the second base 102 provided on the door frame 301 may face each other with the gap G1 therebetween.

The example in which the first base 101 and the second base 102 are provided at the first distal end 311 of the first door 309 and the second distal end 312 of the second door 310, respectively, has been described above, but is not limited thereto. In the case where the swing door 300 has a single door structure, the first base 101 may be provided at any position of the edge portion other than the swing base 303 of the door body 302, for example, the first base 101 may be provided at the upper end portion 305 or the lower end portion 307 of the door body 302, and the second base 102 may be provided at the position of the upper beam 304 or the lower beam 306 of the door frame 301, respectively. In addition, even in the case where the swing door is of a side-by-side door structure, each door body 302 (i.e., the first door body 309 and the second door body 310) may have the auxiliary door closing device 100 of the embodiment independently, and the auxiliary door closing devices 100 may be provided at the positions of the upper end 305 or the lower end 307 of the door body 302 and the upper beam 304 or the lower beam 306 of the door frame 301.

Although the first base 101 and the second base 102 are fixed to the door 302 in such a manner as to sandwich the door 302, it is described above, but not limited thereto. The method of fixing the first base 101 and the second base 102 to the door 302 is not limited thereto, and the first base 101 and the second base 102 may be directly fastened to the first door 309 and the second door 310 by, for example, fastening screws. Alternatively, the first base 101 and the second base 102 may be fixed to the first door 309 and the second door 310 by various means such as strong glue, suction cups, magnets, and the like.

Although the example in which the auxiliary door closing device 100 has the second adsorbing member 115, the first adsorbing member 103, and the second adsorbing member 115 are adsorbed to each other has been described above, it is not limited thereto. The auxiliary door closing device 100 may not have the second suction member 115. For example, the first adsorbing member 103 is attached to the first base 101, and at least one of the second base 102 and the first adsorbing member 103 is a magnet. For example, the second base 102 itself may be a magnet directly, in which case, when the first door 309 is in the closed position, the first suction member 103 is directly sucked by the second base 102, not by the second suction member 115. In this embodiment, the structure of the second base 102 may be different from that of the first base 101.

With reference to fig. 5, the first absorbent element 103 is described as being able to extend and retract with respect to the first base 101 by the first extension and retraction structure 110. For example, the first telescopic structure 110 may further include an elastic member 119 such as a compression spring, and the elastic member 119 biases the first guide 112 in a direction opposite to the first suction member 103, and the elastic member 119 biases the first guide 112 to a force smaller than a tensile force from the magnetic force to which the first guide 112 is subjected when the first door 309 is in the door-closed position.

Although the example in which the first telescopic structure 110 is telescopic in the lateral direction has been described above, it is not limited thereto. For example, the first telescopic structure 110 may also be swingably telescopic with respect to the first base 101. For example, the first base 101 is provided with a swingably telescopic first telescopic structure 110, and the first adsorbing member 103 is swingably attached to the first base 101 with respect to the first base 101 through the first telescopic structure 110. Specifically, the first telescopic structure 110 includes, for example: a support shaft (not shown) provided on the first base 101, and a swing lever (not shown) swingably attached to the support shaft. The first suction member 103 is mounted to the swing lever. Thereby, the first absorbent element 103 can also be extended or retracted with respect to the first base 101.

Although the example in which the auxiliary door closer 100 according to the embodiment is provided as a separate device in the swing door 300 has been described above, the present invention is not limited thereto.

Referring to fig. 6, for example, the auxiliary door closer 100 may be mounted on the door lock 200. According to the door lock 200 of embodiment 2, which is used for locking the swing door 300 and has the main lock 201 and the sub-lock 202 which is lockable with the main lock 201, the main lock 201 is attached to the first door body 309 of the swing door 300, the sub-lock 202 is attached to a position facing the main lock 201 with the gap G1 therebetween when the first door body 309 is in the door-closing position, and the door lock 200 is provided with the above-described auxiliary door closing device 100. Wherein the first base 101 is arranged on the primary lock 201 and the second base 102 is arranged on the secondary lock 202.

Specifically, the type of the door lock 200 is not particularly limited as long as the door lock 200 has a lock tongue 203 in the main lock 201 and a lock hole 204 in the sub lock 202. For example, in the case where the swing door 300 is of a side-by-side door structure, the main lock 201 and the sub-lock 202 of the door lock 200 may be attached to the first distal end portion 311 of the first door body 309 and the second distal end portion 312 of the second door body 310, respectively, by clamping. In the case where the swing door 300 has a single door structure, the main lock 201 of the door lock 200 may be installed to the first distal end 311 (or the upper end 305, the lower end 307) of the first door body 309 by clamping, and the sub-lock 202 of the door lock 200 may be embedded in the door frame 301. As the auxiliary door closing device 100, for example, the first base 101 may be integrally formed with the housing of the main lock 201, and the second base 102 may be integrally formed with the housing of the sub-lock 202.

Thus, according to the door lock 200 of the embodiment, the first door body 309 can be held in the door-closed position with assistance.

With reference to fig. 7 and with continued reference to fig. 1, the auxiliary door closer 100 may be integrally mounted in the swing door 300. The swing door 300 according to embodiment 3 includes a first door body 309 and a door frame 301, the first door body 309 is swingably mounted on the door frame 301, the first door body 309 is swingably swung clockwise and counterclockwise with respect to a door closing position, and the swing door 300 further includes the auxiliary door closing device 100 described above. Specifically, the swing door 300 may be, for example, a swing door 300 having a side-by-side door structure in which the door body 302 is glass, and in this case, the auxiliary door closer 100 is attached to the first door body 309 and the second door body 310 by being clamped as described above. Referring to fig. 7, the swing door 300 may be, for example, a frame-shaped door, and in this case, the auxiliary door closer 100 may be, for example, a first base 101 integrally formed with the frame of the first door body 309 (i.e., a structure of the first base 101 is formed in the frame of the first door body 309), and a second base 102 integrally formed with the frame of the door frame 301 (or the second door body 310) (i.e., a structure of the second base 102 is formed in the frame of the first door body 309 or the door frame 301).

According to the swing door 300 of embodiment 3, the first door 309 can be held in the door-closed position with assistance.

Referring to fig. 6 and 8, the door lock 200 having the auxiliary door closing device 100 may be mounted as the swing door 300. According to the swing door 300 of embodiment 4, the swing door 300 includes a first door body 309 and a door frame 301, the first door body 309 is swingably mounted on the door frame 301, the first door body 309 is swingably swung clockwise and counterclockwise with respect to a door closing position, and the swing door 300 further includes the door lock 200. Specifically, the swing door 300 may be, for example, a swing door 300 having a side-by-side door structure in which the door body 302 is glass, and in this case, the door lock 200 having the auxiliary door closing device 100 is attached to the first door body 309 and the second door body 310 by being clamped as described above. In addition, the swing door 300 may be, for example, a frame-shaped door, and in this case, the door lock 200 having the auxiliary door closing device 100 may be, for example, a main lock 201 and a sub lock 202 respectively fitted into a door body 302.

According to the swing door 300 of embodiment 4, the first door 309 can be held in the door-closed position with assistance.

While examples of the present embodiment have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the embodiments, the scope of which is defined by the claims and their equivalents.

Claims (13)

1. Auxiliary door closing device for carry out auxiliary reset to the first door body of swing door, its characterized in that includes:

a first base provided to an edge portion of the first door body other than the swing base;

a second base provided at a position facing the first base with a gap therebetween when the first door body is in a door-closed position;

The first absorbing member is attached to one of the first base and the second base so as to be stretchable in a direction in which the first base and the second base face each other when the first door body is in the door-closed position, and is capable of being absorbed to the other one of the first base and the second base based on magnetic force.

2. The auxiliary door closing device according to claim 1, wherein the swing door further comprises a second door body, the first door body and the second door body being installed at both sides of the door frame, respectively;

the first base is provided to a first distal end portion of the first door body remote from the swing base thereof;

the second base is provided to a second distal end portion of the second door body remote from the swing base thereof.

3. The auxiliary door closing device as claimed in claim 1, wherein the second base is provided to a door frame.

4. The auxiliary door closing device according to claim 1, wherein the first base is formed with a mounting groove, and the first base is mounted to the edge portion in such a manner that a portion of the edge portion protrudes into the mounting groove.

5. The auxiliary door closing device according to any one of claims 1 to 4, further comprising a second adsorbing member attached to the other one of the first base and the second base in a manner stretchable in a direction in which the first base and the second base face each other when the first door body is in the door closing position, and being adsorbable by the first adsorbing member based on magnetic force so as to be mutually attached to the first adsorbing member in a direction in which the first base and the second base face each other.

6. The auxiliary door closer as claimed in claim 5, wherein at least one of the first and second absorbing members is a magnet.

7. The auxiliary door closing device according to claim 1 or 6, wherein the first base and the second base are opposed to each other in a lateral direction;

The first base is provided with a first telescopic structure which is telescopic along the transverse direction, and the first adsorption piece is arranged on the first base in a telescopic way along the transverse direction through the first telescopic structure.

8. The auxiliary door closer as claimed in claim 7, wherein the first telescopic structure comprises:

a first guide hole formed at the first base;

A first guide slidably received in the first guide hole;

The first suction member is mounted to one axial end of the first guide member.

9. The auxiliary door closing device according to claim 1 or 6, wherein the first base is provided with a swingably telescopic first telescopic structure, and the first adsorbing member is swingably mounted to the first base with respect to the first base through the first telescopic structure.

10. The auxiliary door closer as claimed in claim 9, wherein the first telescopic structure comprises:

The support shaft is arranged on the first base;

a swing lever swingably attached to the support shaft with respect to the support shaft;

The first adsorption member is mounted to the swing lever.

11. A door lock usable for locking a swing door, having a main lock mounted to a first door body of the swing door and a sub lock lockable with the main lock, the sub lock being mounted to a position opposed to the main lock with a gap therebetween when the first door body is in a door-closing position, characterized in that the door lock is provided with the auxiliary door closing device according to any one of claims 1 to 10;

the first base is arranged on the main lock, and the second base is arranged on the auxiliary lock.

12. Swing door comprising a first door body and a door frame, said first door body being swingably mounted on the door frame, said first door body being swingably swung clockwise and counterclockwise with respect to a door closing position, characterized in that it further comprises an auxiliary door closing device according to any one of claims 1 to 10.

13. Swing door, including first door body and door frame, first door body is installed on the door frame with can swinging, first door is relative to closing door position can clockwise swing and anticlockwise swing, its characterized in that still includes the lock of claim 11.