CN219451890U - Middle folding door fence - Google Patents

Abstract

The utility model discloses a middle folding door fence which comprises an outer frame and a door body, wherein the door body comprises a first folding door and a second folding door, one side of the first folding door is hinged with the outer frame, a safety lock capable of detachably connecting the first folding door with the outer frame is arranged between one side of the second folding door and the outer frame, a guide structure is arranged at the lower part of the outer frame, a sliding structure capable of moving along the guide structure is arranged on the second folding door, the other side of the first folding door is movably connected with the other side of the second folding door, and the second folding door is driven to be folded towards the first folding door when the first folding door rotates relative to a door frame so as to open the door body. After the door body is opened, the first folding door and the second folding door are folded and close together, so that the occupied space is small.

Description

Middle folding door fence

Technical Field

The utility model relates to the technical field of child door fences, in particular to a middle folding door fence.

Background

Children are naturally moving and like to run around in the house, but some places are not suitable for children to go, such as stairs, attics, kitchens, toilets and the like. In addition, children are prevented from directly contacting the pet, and are limited to a specific room.

The patent with the publication number of CN103643886A discloses a child door rail, the door rail adopts a vertical hinged door structure, the whole door rail body rotates towards one direction in the door opening process, a large amount of space is required to be occupied, only the hinged part of the door rail body can be supported, after long-time use, the hinged part is easy to deform due to stress concentration, and the hinged part is easy to clamp hands after deformation.

Disclosure of Invention

In view of the above, an object of the present utility model is to provide a center-folding door rail that occupies a small space after opening a door.

The utility model adopts the technical proposal for solving the technical problems that:

the utility model provides a well folding door fence, includes frame and the door body, the door body includes first folding door and second folding door, one side and the frame of first folding door are articulated, be provided with the safety lock that can dismantle the two and connect between one side and the frame of second folding door, the lower part of frame is provided with guide structure, second folding door is provided with can follow guide structure removes sliding structure, the opposite side of first folding door and the opposite side swing joint of second folding door, first folding door drives when rotating for the door frame second folding door is folded towards first folding door and is closed in order to with the door body is opened.

In a preferred embodiment of the present utility model, a transmission structure capable of enabling the first folding door and the second folding door to synchronously and reversely rotate is connected between the first folding door and the second folding door.

In a preferred scheme of the utility model, the transmission structure comprises a connecting frame positioned between a first folding door and a second folding door, at least one connecting seat for connecting the first folding door and the second folding door is arranged on the connecting frame, the first folding door is hinged with the connecting seat through a first rotating shaft, a first gear coaxial with the first rotating shaft is arranged on the first folding door, the second folding door is hinged with the connecting seat through a second rotating shaft, a second gear coaxial with the second rotating shaft is arranged on the second folding door, and the first gear is directly meshed with the second gear or is transmitted between the first gear and the second gear through an even number of third gears.

In a preferred scheme of the utility model, the number of the third gears on each connecting seat is two, the two third gears on the same connecting seat are meshed with each other, and the first gear and the second gear are respectively meshed with one third gear.

In a preferred scheme of the utility model, tooth grooves are formed in the first gear, the second gear and the third gear, a gear seat is fixedly arranged on the connecting seat, a locking cover capable of moving up and down relative to the gear seat is sleeved on the gear seat, a plurality of clamping blocks capable of being clamped into the corresponding tooth grooves are arranged in the locking cover, and the clamping blocks are switched between two states of being clamped into the tooth grooves and being withdrawn from the tooth grooves when the locking cover moves up and down.

In a preferred scheme of the utility model, the locking cover is provided with a chute which is arranged along the up-down direction, the chute is a closed chute with two closed ends, and the gear seat is fixedly provided with a sliding block which is in sliding fit with the chute.

In a preferred scheme of the utility model, when the locking cover is pressed down, all the clamping blocks are clamped into the corresponding tooth grooves to lock the first gear and the second gear, when the locking cover is pulled up, all the clamping blocks are withdrawn from the corresponding tooth grooves to unlock the first gear and the second gear, the locking cover is provided with a first lock pin and a second lock pin, the first folding door is provided with a pin hole corresponding to the first lock pin, the second folding door is provided with a pin hole corresponding to the second lock pin, and when the locking cover is pressed down, the first lock pin and the second lock pin are inserted into the corresponding pin holes.

In a preferred scheme of the utility model, a guide rail is arranged at the lower part of the outer frame, a sleeve is arranged at the lower part of the second folding door, the guide structure comprises a guide groove arranged on the guide rail, the sliding structure comprises a sliding rod which is inserted into the sleeve and can move up and down relative to the sleeve, the lower end of the sliding rod stretches into the guide groove and is in sliding fit with the guide groove, the upper end of the sliding rod is connected with the second folding door through a spring, and the spring applies downward pressure to the sliding rod so that the lower end of the sliding rod can press the bottom surface of the guide groove.

In a preferred scheme of the utility model, the bottom surface of the guide groove is a cylindrical cambered surface, and the bottom surface of the sliding rod is a cambered surface matched with the cylindrical cambered surface.

In a preferred scheme of the utility model, the safety lock comprises a rotary lock cover hinged with the outer frame, one end of the rotary lock cover is provided with a cover part covered on the top of a second folding door, a lock hole is formed in the front side wall and/or the rear side wall of the cover part, and an elastic top bead clamped in the lock hole is arranged on the second folding door.

In a preferred scheme of the utility model, a positioning hole is formed in the upper surface of the second folding door, a positioning rod inserted into the positioning hole is arranged on the inner side wall of the rotary lock cover, and the positioning rod is driven to be pulled out of the positioning hole when the rotary lock cover is opened in a rotary mode.

The beneficial effects of the utility model are as follows:

after the first door body and the second door body are opened, the first folding door and the second folding door are folded and close together, and the occupied space is small.

When the second, above-mentioned scheme is opened the door, first folding door, second folding door can both rotate the open and shut steadily according to the motion route of determining, therefore can predict the direction of motion of first folding door and second folding door when the user opens the door, can avoid appearing the phenomenon of tong when opening the door effectively, safe and reliable.

Thirdly, when opening the door, the door body can be pushed to fold inwards or outwards according to the requirement, so that the door is very convenient.

Fourth, sliding construction can provide a fulcrum for the second folding door, reduces the stress concentration degree of the junction of second folding door and connecting seat, is favorable to promoting the life of using the door body.

Drawings

FIG. 1 is a front view of the present utility model with the door closed;

FIG. 2 is a perspective view of the present utility model with both the rotary lock cover and the locking cover open;

FIG. 3 is a perspective view of the present utility model with the door body folded open to one side;

FIG. 4 is a perspective view of the present utility model with the door body folded open to the other side;

FIG. 5 is a perspective view of the door body with the closure removed;

FIG. 6 is an enlarged view of portion A of FIG. 5;

FIG. 7 is an exploded view of the door body;

FIG. 8 is an enlarged view of portion B of FIG. 7;

FIG. 9 is a schematic illustration of the engagement of the locking cap with the gears when the locking cap is depressed;

FIG. 10 is a perspective view of the closure;

FIG. 11 is a schematic view of a guide structure between the second folding door and the outer frame;

fig. 12 is a schematic view of a connection structure of the rotary lock cover and the second folding door.

Detailed Description

The technical scheme of the present utility model will be clearly and completely described below with reference to the accompanying drawings.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear …) in the present utility model are merely used to explain the relative positional relationship, movement, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indicator is changed accordingly. Furthermore, the description of "preferred," "less preferred," and the like, herein is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "preferred", "less preferred" may include at least one such feature, either explicitly or implicitly.

Referring to fig. 1 to 12, the present utility model provides a middle folding door rail, which comprises an outer frame 1 and a door body.

Both sides of the outer frame 1 are respectively provided with a plurality of supporting feet 8, the supporting feet 8 are connected with the outer frame 1 through screws, and the supporting feet 8 can be fixed at the channel of a building, such as a bedroom door frame, a passageway, a bathroom entrance, a balcony door frame and a door frame of a house entrance door.

The door body includes first folding door 2 and second folding door 3, and one side and frame 1 of first folding door 2 are articulated, are provided with the safety lock that can dismantle the two between one side of second folding door 3 and the frame 1, and the lower part of frame 1 is provided with guide structure, and second folding door 3 is provided with the sliding structure that can follow guide structure and remove, and the opposite side of first folding door 2 and the opposite side swing joint of second folding door 3 drive second folding door 3 when first folding door 2 rotates for the door frame and fold towards first folding door 2 and draw close in order to open the door body.

By adopting the design, after the door body is opened, the first folding door 2 and the second folding door 3 are folded and close together, so that the occupied space is small.

Further, a transmission structure capable of synchronously and reversely rotating the first folding door 2 and the second folding door 3 is connected between the two doors.

Preferably, the transmission structure comprises a connecting frame 4 between the first folding door 2 and the second folding door 3, at least one connecting seat 41 for connecting the first folding door 2 and the second folding door 3 is arranged on the connecting frame 4, the first folding door 2 is hinged with the connecting seat 41 through a first rotating shaft 201, a first gear 202 coaxial with the first rotating shaft 201 is arranged on the first folding door 2, the second folding door 3 is hinged with the connecting seat 41 through a second rotating shaft 301, a second gear 302 coaxial with the second rotating shaft 301 is arranged on the second folding door 3, and the first gear 202 is directly meshed with the second gear 302 or the first gear 202 and the second gear 302 are transmitted through an even number of third gears 42.

The number of the third gears 42 on each connection seat 41 is 2, 4, 6, etc. Taking 2 as an example, the specific designs are as follows, the diameters, the number of teeth and the modulus of the first gear 202 and the second gear 302 are the same, and the diameters, the number of teeth and the modulus of the two third gears 42 are the same. The two third gears 42 on the same connecting seat 41 are meshed with each other, and the first gear 202 and the second gear 302 are respectively meshed with one corresponding third gear 42.

With such a design, the following benefits are achieved: according to the scheme, when the door is opened, the first folding door 2 and the second folding door 3 can be stably rotated to be opened and closed according to the determined movement path, so that the movement directions of the first folding door 2 and the second folding door 3 can be predicted when a user opens the door, the phenomenon of clamping hands when the user opens the door can be effectively avoided, and the door is safe and reliable; if the link is used to connect the first folding door 2 and the second folding door 3, the first folding door 2, the second folding door 3, the link, the sliding structure, and the outer frame 1 form an unstable five-bar structure, and when a user opens the door, the movement path of the first folding door 2 and the second folding door 3 becomes uncertain, and a phenomenon of pinching the hands is likely to occur. In the second and the above solutions, by controlling the distance between the axis of the first gear 202 and the axis of the second gear 302, the first folding door 2 and the second folding door 3 can be folded together to be close to each other, and a flat door body is formed when the first folding door 2 and the second folding door 3 are unfolded. If the first folding door 2 and the second folding door 3 are directly hinged together by adopting the rotating shaft, the first folding door 2 and the second folding door 3 cannot be folded together in an abutting manner, and in addition, a shearing edge is formed by the first folding door 2 and the second folding door 3, so that the hand is easy to clamp. And the third sliding structure can provide a fulcrum for the second folding door 3, so that the stress concentration degree of the joint of the second folding door 3 and the connecting seat 41 is reduced, and the service life of the door body is prolonged.

As a further improvement of the above scheme, the first gear 202, the second gear 302 and the third gear 42 are all provided with tooth grooves 5, the connecting seat 41 is fixedly provided with a gear seat 43, the gear seat 43 is sleeved with a locking cover 6 capable of moving up and down relative to the gear seat, a plurality of clamping blocks 61 capable of being clamped into the corresponding tooth grooves 5 are arranged in the locking cover 6, and the clamping blocks 61 are switched between two states of being clamped into the tooth grooves 5 and being withdrawn from the tooth grooves 5 when the locking cover 6 moves up and down. The locking cover 6 is provided with a sliding groove 62 arranged along the up-down direction, the sliding groove 62 is a closed groove with two closed ends, and the gear seat 43 is fixed with a sliding block 431 in sliding fit with the sliding groove 62. Specifically, the moving direction of the locking cover 6 is parallel to the axis of the gear, when the locking cover 6 is pressed down, all the clamping blocks 61 are clamped into the corresponding tooth grooves 5, so that the first gear 202 and the second gear 302 are locked, and at this time, the first folding door 2 and the second folding door 3 are fixed; when the locking cover 6 is pulled up, all the clamping blocks 61 are withdrawn from the corresponding tooth grooves 5, and at this time, the first gear 202, the second gear 302 and the third gear 42 are unlocked, so that the first folding door 2 can rotate relative to the second folding door 3.

In the above scheme, the locking cover 6 can serve as a first lock, the safety lock can serve as a second lock, and the door body can be prevented from being opened by a child touching one of the locks by mistake.

Further, the locking cover 6 is provided with a first locking pin 63 and a second locking pin 64, the first folding door 2 is provided with a pin hole 66 corresponding to the first locking pin 63, the second folding door 3 is provided with a pin hole 66 corresponding to the second locking pin 64, and when the locking cover 6 is pressed down, the first locking pin 63 and the second locking pin 64 are inserted into the corresponding pin holes 66. Preferably, the number of the first locking pins 63 and the second locking pins 64 is 2. After the door body is completely opened or completely closed, the locking cover 6 can be pressed down, and the first folding door 2 and the second folding door 3 can be directly locked through the first locking pin 63 and the second locking pin 64, so that the stability of the state of the door body is maintained. Avoiding the first folding door 2 and the second folding door 3 from shaking each other to clamp hands.

In a preferred embodiment of the present utility model, the lower portion of the outer frame 1 is provided with the guide rail 11, the lower portion of the second folding door 3 is provided with the sleeve 35, the guide structure includes the guide groove 12 provided on the guide rail 11, the slide structure includes the slide bar 36 inserted in the sleeve 35 and movable up and down with respect to the sleeve 35, the lower end of the slide bar 36 extends into the guide groove 12 and is slidably engaged with the guide groove 12, the upper end of the slide bar 36 is connected with the second folding door 3 through a spring 37, and the spring 37 applies downward pressure to the slide bar 36 so that the lower end of the slide bar 36 can press the bottom surface of the guide groove 12. The bottom surface of the guide groove 12 is a cylindrical cambered surface, and the bottom surface of the sliding rod 36 is a cambered surface matched with the cylindrical cambered surface. The following advantages are achieved by adopting such a design: the first guide rail 11 is easy to accumulate dust, so that the sliding rod 36 can vibrate when sliding along the guide rail 11, the spring 37 can play a role in vibration isolation, absorb most of vibration quantity, and avoid stress fatigue at the hinge position of the second folding door 3 caused by the fact that the vibration quantity is transferred to the second folding door 3. Second, the pressure of spring 37 can increase the frictional force between slide bar 36 and guide rail 11, slows down the speed of user's switch door, avoids opening and closing the door too fast and leads to the incident emergence such as tong.

In some embodiments of the present utility model, instead of the sliding lever 36, a device such as a ball or a roller may be used, and a spring 37 capable of pressing the device such as the ball or the roller may be provided on the second folding door 3.

Referring to fig. 2 and 12, the safety lock includes a rotary lock cover 7 hinged to the outer frame 1, one end of the rotary lock cover 7 has a cover portion 71 that covers the top of the second folding door 3, a locking hole 711 is provided on a front side wall and/or a rear side wall of the cover portion 71, and an elastic top bead 305 that is snapped into the locking hole 711 is provided on the second folding door 3. The upper surface of the second folding door 3 is provided with a positioning hole 306, and the inner side wall of the rotary lock cover 7 is provided with a positioning rod 712 inserted into the positioning hole 306. The resilient top bead 305 employs a combination of top beads and springs 37.

When the rotary lock cover 7 is rotationally closed, the positioning rod 712 is inserted into the positioning hole 306, and the elastic ejector bead 305 is ejected into the corresponding locking hole 711. After the user ejects the elastic ejector bead 305 from the lock hole 711, the rotary lock cover 7 can be rotated and opened to drive the positioning rod 712 to be pulled out from the positioning hole 306.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (10)

1. The utility model provides a well folding door fence, includes frame (1) and the door body, its characterized in that, the door body includes first folding door (2) and second folding door (3), one side and frame (1) of first folding door (2) are articulated, be provided with the safety lock that can dismantle the two and connect between one side and frame (1) of second folding door (3), the lower part of frame (1) is provided with guide structure, second folding door (3) are provided with can be followed guide structure removes sliding structure, the opposite side of first folding door (2) and the opposite side swing joint of second folding door (3), first folding door (2) drive when rotating for the door frame second folding door (3) are folded towards first folding door (2) and are closed in order to open the door body.

2. A center-folding door rail according to claim 1, characterized in that a transmission structure capable of enabling the first folding door (2) and the second folding door (3) to synchronously and reversely rotate is connected between the first folding door and the second folding door.

3. A door rail according to claim 2, characterized in that the transmission structure comprises a connecting frame (4) between the first folding door (2) and the second folding door (3), the connecting frame (4) is provided with at least one connecting seat (41) for connecting the first folding door (2) and the second folding door (3), the first folding door (2) is hinged with the connecting seat (41) through a first rotating shaft (201), the first folding door (2) is provided with a first gear (202) coaxial with the first rotating shaft (201), the second folding door (3) is hinged with the connecting seat (41) through a second rotating shaft (301), the second folding door (3) is provided with a second gear (302) coaxial with the second rotating shaft (301), and the first gear (202) is directly meshed with the second gear (302) or an even number transmission is carried out between the first gear (202) and the second gear (302) through a third gear (42).

4. A door sill according to claim 3, characterized in that the number of third gears (42) on each connecting seat (41) is two, the two third gears (42) on the same connecting seat (41) are engaged with each other, and the first gear (202) and the second gear (302) are engaged with one third gear (42) respectively.

5. A middle folding door rail according to claim 3, characterized in that the first gear (202), the second gear (302) and the third gear (42) are respectively provided with tooth sockets (5), the connecting seat (41) is fixedly provided with a gear seat (43), the gear seat (43) is sleeved with a locking cover (6) capable of moving up and down relative to the gear seat, a plurality of clamping blocks (61) capable of being clamped into the corresponding tooth sockets (5) are arranged in the locking cover (6), and the clamping blocks (61) are switched between clamping into the tooth sockets (5) and withdrawing from the tooth sockets (5) when the locking cover (6) moves up and down.

6. The middle folding door rail according to claim 5, wherein the locking cover (6) is provided with a sliding groove (62) arranged along the up-down direction, the sliding groove (62) is a closed groove with two closed ends, and the gear seat (43) is fixedly provided with a sliding block (431) in sliding fit with the sliding groove (62).

7. A door rail according to claim 5 or 6, characterized in that when the locking cover (6) is pressed, all the clamping blocks (61) are clamped into the corresponding tooth grooves (5) to lock the first gear (202) and the second gear (302), when the locking cover (6) is pulled upwards, all the clamping blocks (61) are withdrawn from the corresponding tooth grooves (5) to unlock the first gear (202) and the second gear (302), the locking cover (6) is provided with a first locking pin (63) and a second locking pin (64), the first folding door (2) is provided with a pin hole (66) corresponding to the first locking pin (63), and when the locking cover (6) is pressed, the second folding door (3) is provided with a pin hole (66) corresponding to the second locking pin (64), and the first locking pin (63) and the second locking pin (64) are inserted into the corresponding pin hole (66).

8. A folding door rail according to claim 1, 2 or 3, characterized in that the lower part of the outer frame (1) is provided with a guide rail (11), the lower part of the second folding door (3) is provided with a sleeve (35), the guide structure comprises a guide groove (12) arranged on the guide rail (11), the sliding structure comprises a sliding rod (36) which is inserted in the sleeve (35) and can move up and down relative to the sleeve (35), the lower end of the sliding rod (36) stretches into the guide groove (12) and is in sliding fit with the guide groove (12), the upper end of the sliding rod (36) is connected with the second folding door (3) through a spring (37), and the spring (37) applies downward pressure to the sliding rod (36) so that the lower end of the sliding rod (36) can press the bottom surface of the guide groove (12).

9. A folding door rail according to claim 1, characterized in that the safety lock comprises a rotary lock cover (7) hinged with the outer frame (1), one end of the rotary lock cover (7) is provided with a cover part (71) covered on the top of the second folding door (3), a lock hole (711) is arranged on the front side wall and/or the rear side wall of the cover part (71), and an elastic top bead (305) clamped in the lock hole (711) is arranged on the second folding door (3).

10. The middle folding door rail according to claim 9, wherein a positioning hole (306) is formed in the upper surface of the second folding door (3), a positioning rod (712) inserted into the positioning hole (306) is arranged on the inner side wall of the rotary lock cover (7), and the positioning rod (712) is pulled out of the positioning hole (306) when the rotary lock cover (7) is rotated to be opened.