CN113090179B

CN113090179B - Automatic door closing safety door fence

Info

Publication number: CN113090179B
Application number: CN202110506834.XA
Authority: CN
Inventors: 陈华
Original assignee: Zhejiang Litong Home Furnishing Co ltd
Current assignee: Zhejiang Litong Home Furnishing Co ltd
Priority date: 2021-05-10
Filing date: 2021-05-10
Publication date: 2024-08-02
Anticipated expiration: 2041-05-10
Also published as: CN113090179A

Abstract

The invention provides an automatic door closing safety door fence, and belongs to the technical field of child fences. The safety door fence comprises a door frame and an inner door, wherein one side of the inner door is hinged to the door frame through a door hinge mechanism, the other side of the inner door is locked to the door frame through a door lock mechanism, the door hinge mechanism comprises a self-closing hinge part and a rotating shaft hinge part, and the door lock mechanism comprises an upper locking part and a lower locking part; the self-closing hinge part comprises an upper base part and an upper rotating shaft part, and the upper locking part comprises an upper lock tongue part, an upper receiving box part, a lifting part and a locking part. The upper base part is provided with the arc-shaped guide surface, the upper rotating shaft part is provided with the first arc-shaped track, when the opening angle of the inner door is smaller than 90 degrees, the upper rotating shaft part rotates under the action of gravity due to the matched guide of the arc-shaped guide surface and the first arc-shaped track, the protrusions on the arc-shaped guide surface are clamped into the grooves on the first arc-shaped track, the automatic closing function of the door is realized, torsion parts are not required to be added, and the structure is stable and reliable.

Description

Automatic door closing safety door fence

Technical Field

The invention relates to the technical field of child fences, in particular to an automatic door closing safety door fence.

Background

The door fence is mainly used for limiting the range of movement of children or pets, for example, the door fence is arranged at an entrance of the range area surrounded by the fence or at an entrance and exit of a room, so that the children or pets can be prevented from freely entering and exiting other areas, and dangers or other adverse effects are avoided. Therefore, the door rail is required to be not easy to be opened by pets or children, and is easy and convenient to install and use by adults. At present, for the door fence, a plurality of products appear on the market, and most of the products have the condition that the door fence cannot be automatically closed after being opened or cannot be automatically locked after being closed, so that people forget to close the door or cannot completely lock the door fence, the door fence cannot play a limiting role, and further pets or children are separated from the limited movable range, and adverse effects or dangers are generated.

The application number 202010045602.4 discloses a safety door rail, which comprises a lower rotating seat, a lower rotating extension piece, a reset spring and a reset torsion spring, wherein the lower rotating seat is rotationally connected with the lower rotating extension piece through a hinge shaft, the reset spring and the reset torsion spring are sleeved on the hinge shaft, and the reset spring and the reset torsion spring can control the door to be automatically closed when being opened; the door and the frame are locked by an upper locking piece and a lower locking piece, wherein the upper locking piece comprises a lock tongue component and a lock groove component, and the lower locking piece comprises a pin head component and a pin groove component; the bolt component comprises a lock shell, a horizontal push button, a linkage piece, a bolt piece, a first spring and a second spring, the pin head component comprises a mounting box, a pin head and a third spring, and the bolt piece and the pin head are respectively inserted into the lock groove component and the pin head component to be locked. The above-mentioned patent application discloses a self-closing safety door sill, but still suffers from the following drawbacks: the door needs to be automatically closed through the reset spring and the reset torsion spring, the structure is unstable, and the spring bolt assembly can not realize double locking, so that certain potential safety hazards exist.

Disclosure of Invention

The invention aims to provide a door rail with high safety and stable self-closing effect, and provides an automatic door closing safety door rail aiming at the defects of the prior art.

The invention provides an automatic door closing safety door rail, which comprises a door frame and an inner door, wherein one side of the inner door is hinged to the door frame through a door hinge mechanism, the other side of the inner door is locked to the door frame through a door lock mechanism, the door hinge mechanism comprises a self-closing hinge part and a rotating shaft hinge part, the self-closing hinge part comprises an upper base part fixedly connected with the door frame, and an upper rotating shaft part rotationally connected with the upper base part and fixedly connected with the inner door, a first connecting column connected with the upper rotating shaft part is arranged on the upper base part, an arc-shaped guide surface is arranged on the outer circumference of the first connecting column, a protrusion for limiting is arranged on the arc-shaped guide surface, a first arc-shaped track matched with the arc-shaped guide surface is arranged on the inner wall of the upper rotating shaft part, a groove for the protrusion to be clamped in is arranged on the first arc-shaped track, and a second connecting column matched and connected with an inner hole of the first connecting column is arranged on the upper rotating shaft part;

The door lock mechanism comprises an upper locking part and a lower locking part, wherein the upper locking part comprises an upper lock tongue piece, an upper receiving box piece fixedly connected with the door frame, a lifting piece used for pushing an upper lock tongue in the upper lock tongue piece to deviate from a first accommodating cavity of the upper receiving box piece, and a locking piece used for limiting the lifting piece to move upwards, the locking piece comprises a sliding button used for removing the movement limitation of the lifting piece and two parallel lock arms vertically connected to the sliding button, a first elastic piece used for resetting the lock arms is arranged on the locking piece, a second elastic piece used for resetting the upper lock tongue is arranged on one side of the upper lock tongue piece, and a third elastic piece used for resetting the lifting piece is arranged on the lifting piece.

Further, an inclined block fixedly connected with the upper lock tongue is arranged in the upper lock tongue piece, a connecting block is arranged on the lifting piece, and the upper end face of the connecting block is an inclined plane matched with the inclined block to slide.

Further, a locking groove matched with the protrusion is formed in the first arc-shaped track, and when the inner door rotates by more than 90 degrees, the protrusion is clamped into the locking groove.

Further, a fourth elastic piece is sleeved on the outer circumference of the second connecting column.

Further, the two sides of the upper receiving box piece are provided with first guide surfaces which facilitate the upper lock tongue to move into the first accommodating cavity.

Further, the upper lock catch part further comprises a shell fixedly connected with the door frame, a moving track for the sliding button to move is arranged on the shell, and anti-skid patterns are arranged on the sliding button.

Further, the hinge part of the rotating shaft comprises a lower base part fixedly connected with the door frame and a lower rotating shaft part fixedly connected with the inner door, and the lower rotating shaft part is rotatably connected with the lower base part through a third connecting column.

Further, the lower base member is provided with a base groove into which the lower rotating shaft member is engaged.

Further, the lower locking part comprises a lower receiving box part fixedly connected with the door frame and a lower lock tongue part fixedly connected with the inner door, a lower lock tongue in the lower lock tongue part is inserted into a second accommodating cavity in the lower receiving box part, and second guide surfaces which are convenient for the lower lock tongue to be inserted into the second accommodating cavity are arranged on two sides of the lower receiving box part.

Further, a door rail is arranged on one side of the door frame, an extension piece is arranged on the door rail, and a U-shaped plate for improving impact resistance of the door rail is arranged on the extension piece.

The automatic door closing safety door rail has the following beneficial effects:

1. The upper base part is provided with the arc-shaped guide surface, the upper rotating shaft part is provided with the first arc-shaped track, when the opening angle of the inner door is smaller than 90 degrees, the upper rotating shaft part rotates under the action of gravity due to the matched guide of the arc-shaped guide surface and the first arc-shaped track, the protrusions on the arc-shaped guide surface are clamped into the grooves on the first arc-shaped track, the automatic closing function of the door is realized, torsion parts are not required to be added, and the structure is stable and reliable.

2. According to the invention, through the combined action of the locking piece and the lifting piece, the upper lock tongue of the upper lock tongue piece is doubly locked, so that the locking strength of the inner door and the door frame is increased, and the inner door is prevented from being opened by mistake by a limited pet or child, thereby bringing potential safety hazard.

3. The first arc-shaped track is provided with the locking groove, when the inner door is opened by more than 90 degrees, the protrusions are clamped into the locking groove, the inner door stops rotating and can be opened for a long time, and a user can conveniently carry things.

4. The extension piece is arranged on the door rail, and the U-shaped plate on the extension piece can improve the impact resistance of the door rail, so that the door rail bears high-strength impact and has high safety.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention. In the drawings, like reference numerals are used to identify like elements. The drawings, which are included in the description, illustrate some, but not all embodiments of the invention. Other figures can be derived from these figures by one of ordinary skill in the art without undue effort.

Fig. 1 is a schematic structural diagram of an automatic door closing safety door rail according to an embodiment of the present invention.

Fig. 2 is a schematic structural view of a self-closing hinge according to an embodiment of the present invention.

Fig. 3 is a schematic structural view of an upper base member according to an embodiment of the present invention.

Fig. 4 is a schematic structural diagram of an upper shaft member according to an embodiment of the present invention.

Fig. 5 is a schematic structural view of an upper locking portion according to an embodiment of the present invention.

Fig. 6 is a schematic structural view of a locking member and a pulling member according to an embodiment of the present invention.

Fig. 7 is a schematic structural view of an upper tongue member and an upper receiving box member according to an embodiment of the present invention.

Fig. 8 is a schematic structural view of a hinge portion of a rotating shaft according to an embodiment of the present invention.

Fig. 9 is a schematic structural view of a lower locking portion according to an embodiment of the present invention.

Fig. 10 is an assembled schematic view of an extension member according to an embodiment of the present invention.

Fig. 11 is a cross-sectional view of an extension and round iron pipe according to an embodiment of the present invention.

100, Door frame; 200. an inner door; 300. a self-closing hinge; 310. an upper base member; 311. a first connection post; 312. an arc-shaped guide surface; 313. a first connection plate; 314. a protrusion; 315. an inner bore; 320. an upper shaft member; 321. a second connection post; 322. a first arcuate track; 323. a groove; 324. a mounting hole; 325. a locking groove; 330. a fourth elastic member; 340. a screw; 341. a limiting piece; 400. a rotating shaft hinge part; 410. a lower rotating shaft member; 420. a lower base member; 421. a base groove; 430. a third connecting column; 500. an upper locking part; 510. an upper tongue member; 511. a sloping block; 512. an upper lock tongue; 520. an upper receiving box; 521. a first guide surface; 530. a lifting member; 531. a connecting block; 532. a connecting arm; 540. a locking member; 541. a locking arm; 542. a sliding button; 550. a first elastic member; 560. a second elastic member; 570. a third elastic member; 600. a lower locking portion; 610. a lower tongue member; 620. a lower receiving box; 621. a second accommodation chamber; 700. a door rail; 710. an extension member; 711. a U-shaped plate; 720 round iron pipe.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be arbitrarily combined with each other.

Embodiment one: as shown in fig. 1 to 4, which are only one embodiment of the present invention, an automatic door closing safety door rail includes a door frame 100 and an inner door 200, one side of the inner door 200 is hinged to the door frame 100 by a door hinge mechanism, the other side of the inner door 200 is locked to the door frame 100 by a door lock mechanism including a self-closing hinge 300 and a hinge shaft 400, and the door lock mechanism includes an upper locking part 500 and a lower locking part 600. Referring to fig. 2, the self-closing hinge 300 includes an upper base member 310 fixedly coupled with the door frame 100, and an upper rotating shaft member 320 rotatably coupled with the upper base member 310 and fixedly coupled with the inner door 200, and referring to fig. 3, a first connection post 311 for connecting the upper rotating shaft member 320 and a first connection plate 313 for connecting the door frame 100 are provided on the upper base member 310, an arc-shaped guide surface 312 is provided on an outer circumference of the first connection post 311, a protrusion 314 for limiting is provided on the arc-shaped guide surface 312, and the protrusion 314 is located at a side far from the door frame 100. Referring to fig. 4, the upper shaft member 320 is provided with a mounting hole 324 into which the first connecting post 311 is inserted, a second connecting post 321 that is cooperatively connected with the inner hole 315 of the first connecting post 311 is provided in the mounting hole 324, a first arc-shaped rail 322 that is cooperatively connected with the arc-shaped guiding surface 312 is provided on a sidewall of the mounting hole 324, and a groove 323 into which the protrusion 314 is inserted is provided on the first arc-shaped rail 322. When the opening angle of the inner door 200 is smaller than 90 °, the upper rotating shaft member 320 rotates under the action of gravity due to the cooperation guidance of the arc-shaped guiding surface 312 and the first arc-shaped track 322, and the protrusion 314 on the arc-shaped guiding surface 312 is clamped into the groove 323 on the first arc-shaped track 322, so that the automatic closing function of the door is realized, no torsion part is required to be added, and the structure is stable and reliable.

In addition, a fourth elastic member 330 is sleeved on the outer circumference of the second connecting post 321, the fourth elastic member 330 is a return spring, one end of the fourth elastic member 330 is connected to the inner wall of the mounting hole 324 of the upper rotating shaft member 320, the other end is connected to a limiting piece 341 located in the upper base member 310, the limiting piece 341 is fixedly arranged on the screw 340, and the screw 340 is in threaded connection with the bottom of the second connecting post 321. The inner door 200 is opened manually, the upper rotating shaft member 320 rotates, the height of the upper rotating shaft member 320 is increased due to the cooperation guide of the arc-shaped guide surface 312 and the first arc-shaped track 322, the fourth elastic member 330 is stretched, and at this time, under the condition that no external force is added, the reset elastic force generated by the fourth elastic member 330 and the gravity of the inner door 200 are converted into the force for driving the inner door 200 to be closed, so that the automatic closing effect is further improved.

The first arc-shaped track 322 is provided with 2 locking grooves 325 matched with the protrusions 314, and the included angle between each locking groove 325 and the corresponding groove 323 is slightly larger than 90 degrees. When the inner door 200 rotates more than 90 °, the protrusion 314 is caught in the locking groove 325, and the inner door 200 stops rotating and maintains an opened state.

Referring to fig. 5 to 7, the upper locking part 500 includes an upper latch member 510, an upper receiving box member 520 fixedly coupled to the door frame 100, a pulling member 530 for pushing the upper latch 512 of the upper latch member 510 out of the first receiving cavity of the upper receiving box member 520, and a locking member 540 for restricting upward movement of the pulling member 530. The locking member 540 is provided with a first elastic member 550 for resetting the locking arm 541, one side of the upper locking bolt 510 is provided with a second elastic member 560 for resetting the upper locking bolt 512, and the pulling member 530 is provided with a third elastic member 570 for resetting the pulling member 530. Referring to fig. 7, the upper latch bolt member 510 includes an upper latch bolt 512 for insertion into the upper receiving box member 520, and a sloping block 511 fixed to one end of the upper latch bolt 512. Referring to fig. 6, the locking member 540 includes a sliding button 542 for releasing the restriction of the movement of the pulling member 530, and two parallel locking arms 541 vertically coupled to the sliding button 542; the lifting member is provided with a connecting block 531 and a connecting arm 532 for interacting with the locking arm 541, and the upper end surface of the connecting block 531 is an inclined surface sliding in cooperation with the inclined block 511. The user pushes the sliding button 542 leftwards to release the limitation of the locking arm 541 to the connecting arm 532, so as to realize the first-step unlocking, and simultaneously pushes the lifting member upwards, the connecting block 531 in the lifting member interacts with the inclined block 511 in the upper lock tongue member 510, at this time, the acting force on the upper lock tongue member 510 can be decomposed into forces in two directions of horizontal and vertical, and since the upper lock tongue member 510 is mounted on the housing, the upper lock tongue member 512 can not move in the vertical direction and can only move horizontally, so that the upper lock tongue 512 is separated from the first accommodating cavity, and the second-step unlocking is realized. Through the combined action of the locking piece 540 and the lifting piece 530, the upper lock tongue 512 of the upper lock tongue piece 510 is double-locked, so that the locking strength of the inner door 200 and the door frame 100 is increased, and the inner door 200 is prevented from being opened by mistake by a limited pet or child, thereby bringing potential safety hazards.

The upper receiving box 520 is provided at both sides with first guide surfaces 521 for facilitating the movement of the upper latch 512 into the first receiving cavity. In the process of automatically closing the inner door 200, the locking member 540 is reset under the action of the first elastic member 550, the lifting member 530 is reset under the action of the third elastic member 570, the upper lock tongue member 510 is reset under the action of the second elastic member 560, the upper lock tongue 512 is contacted with the first guiding surface 521 and mutually extruded, the second elastic member 560 is compressed, the upper lock tongue 512 is retracted inwards under the guidance of the first guiding surface 521 until the upper lock tongue 512 reaches the cavity opening of the first accommodating cavity, and the upper lock tongue 512 enters the first accommodating cavity under the action of the second elastic member 560. The first elastic member 550, the second elastic member 560, and the third elastic member 570 are compression springs.

The upper locking part further comprises a shell fixedly connected with the door frame 100, a moving track for the sliding button 542 to move is arranged on the shell, and anti-skidding patterns are arranged on the sliding button 542, so that manual operation is facilitated.

Referring to fig. 8, the hinge portion 400 includes a lower base member 420 fixedly coupled with the door frame 100, and a lower hinge member 410 fixedly coupled with the inner door 200, the lower hinge member 410 being rotatably coupled with the lower base member 420 through a third coupling post 430. The lower base member 420 is provided with a base groove 421 into which the lower rotating shaft member 410 is engaged.

Referring to fig. 9, the lower locking part 600 includes a lower receiving box 620 fixedly coupled with the door frame 100, a lower latch member 610 fixedly coupled with the inner door 200, and a lower latch of the lower latch member 610 is inserted into the lower receiving box 620

The lower receiving box 620 is provided with second guide surfaces on both sides thereof for facilitating the insertion of the lower locking tongue into the second receiving cavity 621. After the unlocking of the upper locking part 500 is completed, the inner door 200 is lifted upward, the lower locking tongue is withdrawn from the second receiving cavity 621, and the lower rotating shaft member 410 is withdrawn from the base groove 421 in the lower base member 420, rotating the inner door 200, and completing the opening of the inner door 200.

Referring to fig. 10 and 11, a door rail 700 is provided at one side of the door frame 100, and an extension member is provided at the door rail 700, and a U-shaped plate 711 for improving impact resistance of the door rail 700 is provided at the extension member. The inner hole of the extension piece 710 is connected with a round iron pipe 720, the round iron pipe 720 and the extension piece 710 are connected into a whole by adopting an injection molding process, two adjacent round iron pipes 720 are mutually clamped, a U-shaped plate 711 on the extension piece 710 is clamped with the adjacent extension piece 710, and the impact resistance of the door rail 700 is improved.

The above description may be implemented alone or in various combinations and these modifications are within the scope of the present invention.

It should be noted that, in the description of the present application, the terms "upper end," "lower end," and "bottom end" of the indicated orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the application is conventionally put in use, merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting. Although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. The utility model provides an automatic door safety door fence of closing door, includes door frame (100) and interior door (200), one side of interior door (200) pass through door hinge mechanism articulated in on door frame (100), the opposite side of interior door (200) pass through door lock mechanism locking in on door frame (100), its characterized in that: the door hinge mechanism comprises a self-closing hinge part (300) and a rotating shaft hinge part (400), wherein the self-closing hinge part (300) comprises an upper base part (310) fixedly connected with the door frame (100), an upper rotating shaft part (320) rotationally connected with the upper base part (310) and fixedly connected with the inner door (200), a first connecting column (311) connected with the upper rotating shaft part (320) is arranged on the upper base part (310), an arc-shaped guide surface (312) is arranged on the outer circumference of the first connecting column (311), a protrusion (314) for limiting is arranged on the arc-shaped guide surface (312), a first arc-shaped track (322) matched with the arc-shaped guide surface (312) is arranged on the inner wall of the upper rotating shaft part (320), a groove (323) for clamping the protrusion (314) is arranged on the first arc-shaped track (322), and a second connecting column (321) matched with an inner hole (315) of the first connecting column (311) is arranged on the upper rotating shaft part (320);

The door lock mechanism comprises an upper locking part (500) and a lower locking part (600), wherein the upper locking part (500) comprises an upper lock tongue piece (510), an upper receiving box piece (520) fixedly connected with the door frame (100), a lifting piece (530) for pushing an upper lock tongue (512) in the upper lock tongue piece (510) to be separated from a first accommodating cavity of the upper receiving box piece (520), and a locking piece (540) for limiting the lifting piece (530) to move upwards, the locking piece (540) comprises a sliding button (542) for releasing the movement limitation of the lifting piece (530), two parallel lock arms (541) vertically connected to the sliding button (542), a first elastic piece (550) for resetting the lock arms (541) is arranged on the locking piece (540), a second elastic piece (560) for resetting the upper lock tongue (512) is arranged on one side of the upper lock tongue piece (510), and a third elastic piece (570) for resetting the lifting piece (530) is arranged on the lifting piece (530).

An inclined block (511) fixedly connected with the upper lock tongue (512) is arranged in the upper lock tongue piece (510), a connecting block (531) is arranged on the lifting piece (530), and the upper end surface of the connecting block (531) is an inclined surface matched with the inclined block (511) to slide;

The first arc-shaped track (322) is provided with a locking groove (325) matched with the protrusion (314), and when the inner door (200) rotates by more than 90 degrees, the protrusion (314) is clamped into the locking groove (325).

2. An automatic door closing safety door sill as in claim 1 wherein: the outer circumference of the second connecting post (321) is sleeved with a fourth elastic piece (330).

3. An automatic door closing safety door sill as in claim 1 wherein: the two sides of the upper receiving box (520) are provided with first guide surfaces (521) which facilitate the upper lock tongue (512) to move into the first accommodating cavity.

4. An automatic door closing safety door sill as in claim 1 wherein: the upper locking part further comprises a shell fixedly connected with the door frame (100), a moving track for the sliding button (542) to move is arranged on the shell, and anti-skidding patterns are arranged on the sliding button (542).

5. An automatic door closing safety door sill as in claim 1 wherein: the rotating shaft hinge part (400) comprises a lower base part (420) fixedly connected with the door frame (100) and a lower rotating shaft part (410) fixedly connected with the inner door (200), and the lower rotating shaft part (410) is rotatably connected with the lower base part (420) through a third connecting column (430).

6. An automatic door closing safety door sill as in claim 5 wherein: the lower base member (420) is provided with a base groove (421) into which the lower rotating shaft member (410) is engaged.

7. An automatic door closing safety door sill as in claim 1 wherein: the lower locking part (600) comprises a lower receiving box piece (620) fixedly connected with the door frame (100), a lower lock tongue piece (610) fixedly connected with the inner door (200), a lower lock tongue in the lower lock tongue piece (610) is inserted into a second accommodating cavity (621) in the lower receiving box piece (620), and second guide surfaces which are convenient for the lower lock tongue to be inserted into the second accommodating cavity (621) are arranged on two sides of the lower receiving box piece (620).

8. An automatic door closing safety door sill as in claim 1 wherein: one side of the door frame (100) is provided with a door rail (700), the door rail (700) is provided with an extension piece (710), and the extension piece (710) is provided with a U-shaped plate (711) for improving the impact resistance of the door rail (700).