CN110671011A

CN110671011A - Door body

Info

Publication number: CN110671011A
Application number: CN201910805765.5A
Authority: CN
Inventors: 王亚军; 刘越; 王文文
Original assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Current assignee: Qingdao Haier Special Refrigerator Co Ltd; Haier Smart Home Co Ltd
Priority date: 2019-08-29
Filing date: 2019-08-29
Publication date: 2020-01-10
Anticipated expiration: 2039-08-29
Also published as: CN110671011B

Abstract

The invention provides a door body, which comprises a door frame with an opening, a door panel for opening or closing the opening, two first rotating connecting mechanisms for rotatably connecting a first end of the door panel to the door frame, two second rotating connecting mechanisms for rotatably connecting a second end of the door panel opposite to the first end to the door frame, and a double door mechanism for enabling the door panel to open the opening from the first end or the second end, wherein each of the first rotating connecting mechanism and the second rotating connecting mechanism comprises a rotating shaft and a shaft hole which are arranged between the door frame and the door panel and are matched with each other, and a limiting structure arranged between the rotating shaft and the shaft hole, the limiting structure is used for limiting the rotating shaft or the shaft hole which is arranged at the rotating end and arranged on the door panel to move inwards in the rotating process of the door panel, so that the rotating shafts at the first end and the second end can be prevented from being separated from the shaft, the door panel can be safely opened and closed from the first end or the second end, and the structure is simple.

Description

Door body

Technical Field

The invention relates to the field of door body structures, in particular to a door body which can prevent a door panel from falling off and can open a door in two directions.

Background

The traditional door body generally is one-way structure of opening the door, and one side of door panel is connected with the door frame rotation through fixed pivot promptly, and door panel can only be from not setting up one side of fixed pivot is opened, leads to the use of the door body to have very big limitation, if, at the in-process that opens the door, need consider the collision problem between door panel and wall etc. just restricted the position of putting that has furniture or domestic appliance etc. of this door body.

Chinese utility model No. CN2340866Y discloses a left and right door opening mechanism, which comprises a set of parts for telescopic door brace and four door brace linkage controls on four corners of the door, a small wheel which can be touched by extending hand is arranged on the upper and lower ends or left and right sides of the door, and the door opening direction can be changed by rotating it lightly with hand. However, the structure is complex and the operation is inconvenient; and, it is wrong that the direction of dialling probably takes place to lead to four telescopic door props all to break away from the door frame, causes the condition that the door breaks away from the door frame, has certain potential safety hazard.

Chinese utility model patent No. CN205370316 discloses a two fixed rotating shaft vertical hinged door, four angles of door leaf are equipped with four flexible pivots (or flexible hasp), pivot hasp (or pivot) that can stretch out and draw back and install on the door frame, are provided with two sets of multi-functional handles in addition to the flexible pivot of drive one side is flexible respectively. When the door is closed, the two groups of telescopic rotating shafts are locked by the rotating shaft lock catches. When the door is opened, the multifunctional handle at the corresponding side is pulled, the telescopic rotating shaft at the corresponding side is separated from the lock catch through force transmission, the door leaf can be opened by winding the other group of rotating shafts, the multifunctional handle at the other side is pulled to separate the corresponding rotating shaft from the lock catch of the rotating shaft, the door leaf can be opened along the opposite direction, and the left-right opening selectivity is facilitated; however, in the process that the door body is opened around one end, the user may operate another multifunctional handle by mistake, so that the four telescopic rotating shafts are all separated from the corresponding rotating shaft lock catches, the door leaf falls off, and certain potential safety hazards exist.

In view of the above, it is desirable to provide a new door body to solve the above problems.

Disclosure of Invention

The invention aims to provide a door body which can prevent a door panel from falling off and can open the door bidirectionally.

In order to achieve the purpose, the invention adopts the following technical scheme: the utility model provides a door body, including having the open-ended door frame, be used for opening or closing open-ended door panel, will the first end of door panel rotate connect in two first rotation coupling mechanism on the door frame, general door panel with the relative second end of first end rotate connect in two second on the door frame rotate coupling mechanism, make door panel can hold from first end or second and open-ended two door mechanisms, first rotation coupling mechanism and second rotation coupling mechanism all including locating door frame and door panel between pivot and the shaft hole of mutually supporting, locate the pivot with limit structure between the shaft hole, limit structure is used for door panel pivoted in-process, the restriction is located the rotation end and locates pivot or shaft hole inward movement on the door panel.

As a further improved technical solution of the present invention, the limiting structure includes an annular groove disposed on one of the rotating shaft and the shaft hole, a guide groove communicated with the annular groove and extending along an axial direction of the rotating shaft or the shaft hole, and a protrusion disposed on the other and engaged with the annular groove and the guide groove, wherein the guide groove is used to guide the protrusion to enter the annular groove or guide the protrusion to be away from the annular groove so as to separate the corresponding rotating shaft from the shaft hole.

As a further improved technical scheme of the invention, the annular groove is recessed outwards from the inner side of the shaft hole along the circumferential direction of the shaft hole, and the guide groove is positioned on one side of the annular groove close to the rotating shaft; the protrusion is arranged on the rotating shaft.

As a further improved technical solution of the present invention, when the door panel is in the closed state, the protrusion is located in the guide groove; the double-door mechanism comprises a lever which is linked to the first rotating connecting mechanism and the second rotating connecting mechanism on the same side, and the lever is rotationally connected to the door panel.

As a further improved technical solution of the present invention, the shaft hole is disposed on the door frame, and two ends of the lever are respectively connected to the rotating shafts of the first rotating connection mechanism and the second rotating connection mechanism located on the same side.

As a further improved technical solution of the present invention, the lever is sleeved on the rotating shaft, and the rotating shaft is further provided with a limiting member for limiting the lever to move along the axial direction of the rotating shaft relative to the rotating shaft.

As a further improved technical solution of the present invention, the limiting member includes two nuts threadedly connected to the rotating shaft, and the two nuts are respectively located at two opposite sides of the lever along the axial direction of the rotating shaft.

As a further improved technical solution of the present invention, the double door mechanism further includes a first driving member located at the first end to drive the rotating shafts of the two first rotating connecting mechanisms to be separated from the shaft holes, and a second driving member located at the second end to drive the rotating shafts of the two second rotating connecting mechanisms to be separated from the shaft holes.

As the further improved technical scheme of the invention, one of the rotating shaft and the shaft hole is arranged on the door frame; the first driving piece and the second driving piece respectively comprise two push-pull rods connected to the other one of the rotating shaft and the shaft hole and a handle piece used for driving the two push-pull rods to move in opposite directions, and the two push-pull rods extend in opposite directions along the axial direction of the rotating shaft.

As a further improved technical scheme of the invention, the handle part comprises two handle rods which are in cross rotating connection, and one ends of the two push-pull rods close to the handle part are respectively connected with the two handle rods.

The invention has the beneficial effects that: according to the door body, the first rotating connecting mechanism and the second rotating connecting mechanism are arranged between the rotating shaft and the shaft hole, the limiting structure is used for limiting the rotating shaft at the rotating end to be separated from the shaft hole inwards along the axial direction of the rotating shaft in the rotating process of the door panel, namely, the rotating shaft at the rotating end cannot be separated from the shaft hole in the rotating process of the door panel, so that the rotating shafts at the first end and the second end can be prevented from being separated from the shaft hole, the aim of preventing the door panel from falling off from the door frame is fulfilled, the door body can be safely opened and closed from the first end or the second end, and the structure is simple.

Drawings

Fig. 1 is a schematic structural view of a door body in the present invention.

Fig. 2 is an exploded view of fig. 1.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an enlarged view at B in fig. 2.

Detailed Description

The present invention will be described in detail with reference to the embodiments shown in the drawings, and reference is made to fig. 1 to 4, which are preferred embodiments of the present invention. It should be noted that these embodiments are not intended to limit the present invention, and those skilled in the art should be able to make functional, methodical, or structural equivalents or substitutions according to these embodiments without departing from the scope of the present invention.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", and the like in the present invention indicate orientation or positional relationship only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. The terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

In this specification, it is to be noted that, unless otherwise explicitly stated or limited, the terms "connected," "provided," and the like are to be construed broadly, and for example, the connection may be a direct connection or an indirect connection via an intermediate medium, and may be a fixed connection or a detachable connection or an integral connection; the setting may be a direct setting or an indirect setting through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1 to 4, the present invention provides a door body 1, and the door body 1 may be applied to furniture or household appliances. Door body 1 is including the door frame 11 that has opening 111, be used for opening or closing opening 111's door panel 12, will door panel 12's first end rotate connect in two first rotation coupling mechanism 13 on the door frame 11, will door panel 12 with the relative second end rotation of first end connect in two second rotation coupling mechanism 14 on the door frame 11 make door panel 12 can be held open from first end or second opening 111's two door opening mechanism 15, first rotation coupling mechanism 13 and second rotation coupling mechanism 14 all is including locating door frame 11 with pivot 16 and shaft hole 17 between the door panel 12.

The first end of the door panel 12 is rotatably connected to the door frame 11 by two sets of cooperating rotating shafts 16 and shaft holes 17 at the first end; the second end of the door panel 12 is pivotally attached to the door frame 11 by two sets of cooperating pivot shafts 16 and shaft holes 17 at the second end.

It can be understood that one of the rotating shaft 16 and the shaft hole 17 is disposed on the door frame 11, and the other is disposed on the door panel 12, and simultaneously disposed on the rotating shaft 16 or the shaft hole 17 on the door panel 12 and the door panel 12 are movably connected relatively, so as to drive the rotating shaft 16 located at the first end and the shaft hole 17 to be separated from each other through the double-door mechanism 15, so that the door panel 12 can be opened from the first end, or drive the rotating shaft 16 located at the second end and the shaft hole 17 to be separated from each other, so that the door panel 12 can be opened from the second end.

It can be understood that, when the shaft hole 17 is provided on the door panel 12, a sleeve for forming the shaft hole 17 needs to be additionally provided to movably connect the shaft hole 17 to the door panel 12, and this structure is conventional and will not be described herein again.

It will be appreciated that after the double door opening mechanism 15 disengages the shafts 16 of the two second pivotal connection mechanisms 14 from the shaft holes 17, the door panel 12 can be pivoted about the first end to open the opening 111 from the second end; after the double door mechanism 15 disengages the shafts 16 of the two first rotation connecting mechanisms 13 from the shaft holes 17, the door panel 12 can rotate around the second end to open the opening 111 from the first end.

Hereinafter, the structure of the door body 1 according to the present invention will be described in detail by taking an example in which the shaft hole 17 is provided in the door frame 11 and the rotating shaft 16 is movably provided in the door panel 12.

Specifically, door frame 11 includes be used for with door panel 12 matched with frame body 112, locate the decorative board 113 of the tip of frame body 112, shaft hole 17 runs through to be located on the frame body 112, decorative board 113 is used for shielding shaft hole 17 is kept away from the one end of door panel 12, simultaneously, decorative board 113 also can restrict pivot 16 breaks away from corresponding shaft hole 17 along its axial outside, the reinforcing door panel 12 with the stability of being connected between the door frame 11, reinforcing door panel 12 rotates the stability of in-process.

In a specific embodiment, the door body 1 is vertical and places, just first end is the left end, and the second end is the right-hand member, in order to realize two-way opening door about the door body 1, promptly door panel 12 can be selectively opened from left side or right side opening 111, at this moment, is located two of first end first rotation coupling mechanism 13 is located respectively the upper left corner department and the lower left corner department of the door body, is located two of second end second rotation coupling mechanism 14 is located respectively the upper right corner department and the lower right corner department of the door body 1, just pivot 16 and the axial in shaft hole 17 all extends along the vertical direction. Of course, this is not a limitation.

Further, first rotation coupling mechanism 13 and second rotation coupling mechanism 14 is still all including locating pivot 16 with limit structure 18 between the shaft hole 17, limit structure 18 is used for door panel 12 pivoted in-process, and the restriction is located the pivot 16 of rotation end and is broken away from with corresponding shaft hole 17 mutually, promptly door panel 12 pivoted in-process, be located the rotation end pivot 16 with can not break away from each other between the shaft hole 17, thereby, can prevent the pivot 16 of first end and second end all breaks away from shaft hole 17, reaches and prevents door panel 12 from the mesh that drops on door frame 11 makes door panel 12 can end safety switch from first end or second.

In the embodiment that the shaft hole 17 is disposed on the door frame 11, the limiting structure is configured to limit the rotating shaft 16 at the rotating end to move inward, that is, limit the rotating shaft 16 at the rotating end to retract inward, so as to prevent the rotating shaft 16 from being separated from the corresponding shaft hole 17.

It should be noted that the inward movement, i.e. the movement toward the center of the door body 1, correspondingly, the outward movement, i.e. the movement away from the center of the door body.

In the embodiment where the axial hole 17 is provided in the door frame 11, the limiting structure 18 is used to limit the inward movement of the rotating shaft 16 at the rotating end during the rotation of the door panel 12, so as to prevent the inward movement of the rotating shaft 16 from being separated from the axial hole 17.

It can be understood that, when the door panel 12 rotates around the first end, the first end is the above-mentioned rotating end, at this time, the rotating shafts 16 in the two second rotating connecting mechanisms 14 are disengaged from the corresponding shaft holes 17, and at the same time, during the rotation of the door panel 12, the rotating shafts 16 in the two first rotating connecting mechanisms 13 and the corresponding shaft holes 17 are under the effect of the limiting structure 18, so that the rotating shafts 16 can only rotate around the shaft holes 17 and cannot move inward along the axial direction thereof, i.e., cannot be disengaged from the shaft holes 17, thereby preventing the rotating shafts 16 in the first rotating connecting mechanisms 13 from disengaging from the shaft holes 17 under the effect of external force, and preventing the door panel 12 from falling off the door frame 11; when the door panel rotates around the second end, the second end is the above-mentioned rotating end, at this time, the rotating shaft 16 in the two first rotating connecting mechanisms 13 is separated from the corresponding shaft hole 17, and simultaneously, in the rotating process of the door panel 12, under the effect of the limiting structure 18 between the rotating shaft 16 in the two second rotating connecting mechanisms 14 and the corresponding shaft hole 17, the rotating shaft 16 can only rotate around the shaft hole 17 and cannot move inwards along the axial direction thereof, i.e., cannot be separated from the shaft hole 17, thereby preventing the rotating shaft 16 in the second rotating connecting mechanisms 14 from being separated from the shaft hole 17 under the action of external force, preventing the door panel 12 from falling off from the door frame 11, and enabling the door panel 12 to be switched on and off from the first end or the second end.

Further, the limiting structure 18 includes an annular groove 181 disposed on one of the rotating shaft 16 and the shaft hole 17, a guide groove 182 communicated with the annular groove 181 and extending along the axial direction of the rotating shaft 16 or the shaft hole 17, and a protrusion 183 disposed on the other and engaged with the annular groove 181 and the guide groove 182, where the guide groove 182 is configured to guide the protrusion 183 to move to enter the annular groove 181, so as to limit the corresponding rotating shaft 16 to be separated from the shaft hole 17 inward along the axial direction thereof or guide the protrusion 183 to move away from the annular groove 181, so as to separate the rotating shaft 16 from the shaft hole 17.

When the door panel 12 is in the closed state, the protrusion 183 is located in the guiding groove 182 or located in the annular groove 181 corresponding to the guiding groove 182, so that the protrusion 183 moves inward along the guiding groove 182 directly by the double door opening mechanism 15 acting on the rotating shaft 16, that is, the rotating shaft 16 is separated from the shaft hole 17.

It can be understood that, for the first rotary connecting mechanism 13 and the second rotary connecting mechanism 14 at the upper end, the above inward movement means that the double door mechanism 15 drives the rotating shaft 16 to move downward along the axial direction thereof, i.e. to disengage from the corresponding shaft hole 17; for the first rotary connecting mechanism 13 and the second rotary connecting mechanism 14 at the lower end, the above inward movement means that the double door mechanism 15 drives the rotating shaft 16 to move upward along the axial direction thereof, i.e. to disengage from the corresponding shaft hole 17.

Door panel 12 pivoted in-process, be located the rotation end protruding 183 is followed annular groove 181 rotates, the step face 1811 of annular groove 181 with protruding 183 offsets and holds, thereby can restrict pivot 16 is along its axial inwards movement, even the two door mechanisms 15 that the user maloperation rotation end corresponds also can't make pivot 16 inwards break away from corresponding shaft hole 17 to, prevent to lead to the pivot 16 and the shaft hole 17 of rotation end to break away from under the effect of external force, prevent door panel 12 from drop on door frame 11.

In one embodiment, the annular groove 181 is disposed in the shaft hole 17, and the annular groove 181 is formed by being recessed outward from the inner side of the shaft hole 17 along the axial direction thereof, and the guide groove 182 is located at the inner end of the annular groove 181; the protrusion 183 is disposed on the rotating shaft 16 and protrudes outward from the outer surface of the rotating shaft 16 along the radial direction thereof. Of course, this is not a limitation.

Specifically, the guide slot 182 is located at an end of the shaft hole 17 remote from the door panel 12. The rotating shaft 16 is provided with a connecting end connected with the double door mechanism 15 and a free end arranged opposite to the connecting end, and the protrusion 183 is positioned at the free end.

In one embodiment, the protrusion 183 is located in the guiding groove 182 when the door panel 12 is in the closed state, and it is understood that, before the door panel 12 is rotated, the protrusion 183 at the rotating end needs to be moved outwardly along the guiding groove 182 into the annular groove 181 to rotate the door panel 12.

Further, the double door opening mechanism 15 includes a lever 151 for linking the first rotating connection mechanism 13 and the second rotating connection mechanism 14 on the same side, and the lever 151 is rotatably connected to the door panel 12.

In the embodiment in which the shaft hole 17 is formed in the door frame 11, one end of the lever 151 is connected to the rotating shaft 16 of the first rotating connecting mechanism 13, the other end of the lever 151 is connected to the rotating shaft 16 of the second rotating connecting mechanism 14 on the same side, and the rotating shafts 16 at both ends of the lever 151 can move in opposite directions in synchronization, that is, the rotating shaft 16 is indirectly formed on the door panel 12 through the lever 151.

It is understood that said double door mechanism 15 comprises two of said levers 151, one of said levers 151 for linking the first rotary connection 13 and the second rotary connection 14 at the upper end; the other lever 151 is used to link the first rotation connecting mechanism 13 and the second rotation connecting mechanism 14 at the lower end.

The operation of the lever 151 will be described in detail below, taking as an example the need to open the door panel 12 from the second end; it will be appreciated that the lever 151 operates in the same manner when it is desired to open the door panel 12 from the first end, and will not be described in detail herein.

When the door panel 12 needs to be opened from the second end, the rotating shafts 16 in the two second rotating connecting mechanisms 14 are driven to move inwards towards each other through the double door opening mechanism 15, wherein the rotating shaft 16 in the second rotating connecting mechanism 14 at the upper end moves downwards, under the action of the corresponding lever 151, the rotating shaft 16 in the first rotating connecting mechanism 13 at the upper end moves upwards along the axial direction thereof, namely moves outwards, at the moment, the corresponding protrusion 183 moves upwards along the guide groove 182, and when the rotating shaft 16 in the second rotating connecting mechanism 14 at the upper end moves downwards to be separated from the corresponding shaft hole 17, the rotating shaft 16 in the first rotating connecting mechanism 13 at the upper end moves upwards to enable the protrusion 183 on the rotating shaft to be located at the position of the corresponding annular groove 181; similarly, when the rotating shaft 16 of the second rotating connecting mechanism 14 at the lower end moves upwards to be separated from the corresponding shaft hole 17, under the action of the lever 151 corresponding to the rotating shaft 16, the rotating shaft 16 of the first rotating connecting mechanism 14 at the lower end moves downwards to make the protrusion 183 located thereon located at the position of the corresponding annular groove 181, at this time, the rotating shafts 16 in the two second rotating connecting mechanisms 13 are separated from the shaft holes 17, meanwhile, the rotating shafts 16 in the two first rotating connecting mechanisms 13 are both located in the corresponding shaft holes 17, and the corresponding protrusions 183 are both located at the position of the corresponding annular groove 181, so that the door panel 12 can rotate around the first end, and in the process of rotating the door panel 12, the protrusions 183 are matched with the annular grooves 181, so as to limit the rotating shaft 16 at the first end from being separated inwards from the corresponding shaft holes 17, and prevent misoperation of a user, the door panel 12 can be prevented from falling off the door frame 11.

In one embodiment, the lever 151 is sleeved on the corresponding rotating shaft 16, and the rotating shaft 16 is further provided with a limiting member 19 for limiting the lever 151 to move along the axial direction of the rotating shaft 16 relative to the rotating shaft 16. Therefore, when the lever 151 rotates, the rotating shafts 16 at both ends can be driven to synchronously move reversely in the up-down direction. Of course, it is understood that the lever 151 may be connected to the shaft 16 in other manners.

In the embodiment shown in the figures, the limiting member 19 includes two nuts 191 screwed to the rotating shaft 16, and the two nuts 191 are respectively located at two opposite sides of the lever 151 along the axial direction of the rotating shaft 16, that is, one of the two nuts 191 abuts against the lower side of the end of the lever 151, and the other abuts against the upper side of the end of the lever 151, on one hand, the nuts 191 are screwed to the rotating shaft 16, which is relatively stable, and during the rotation of the lever 151, the nuts 191 are not easy to axially displace with the rotating shaft 16; on the other hand, the limiting position can be conveniently adjusted according to the specific position of the lever 151, and the limiting gap can be conveniently adjusted according to the thickness of the end part of the lever 151, namely, the limiting position can be adjusted by adjusting the positions of the two nuts 191, and the limiting gap can be adjusted by adjusting the size of the gap between the two nuts 191, so that the universality of limiting connection between the lever 151 and the rotating shaft 16 is enhanced.

Specifically, the double door opening mechanism 15 further includes a lever base 152 fixed to the door panel 12, and the lever 151 is rotatably connected to the lever base 152, so that the lever 151 is rotatably connected to the door panel 12.

Further, the double door opening mechanism 15 further includes a first driving member 153 at a first end for driving the rotating shaft 16 of the two first rotating connecting mechanisms 13 to disengage from the shaft hole 17, and a second driving member 154 at a second end for driving the rotating shaft 16 of the two second rotating connecting mechanisms 14 to disengage from the shaft hole 17, and a user operates the first driving member 153 to disengage the rotating shaft 16 of the two first rotating connecting mechanisms 13 from the shaft hole 17, so that the user can open the door panel 12 from the first end, that is, the door panel 12 can rotate around the second end; the user operates the second driving member 154 to disengage the rotating shaft 16 of the two second rotating connecting mechanisms 14 from the shaft hole 17, so that the user can open the door panel 12 from the second end, i.e., the door panel 12 can rotate around the first end.

Specifically, in the embodiment where the shaft hole 17 is disposed on the door frame 11, the first driving member 153 includes two push-pull rods 1531 connected to the two shafts 16 of the first rotary connecting mechanism 13, and a handle member 1532 for driving the two push-pull rods 1531 to move toward each other, the two push-pull rods 1531 extend from the connection point with the corresponding shaft 16 in the axial direction of the shaft 16, and when the handle member 1532 drives the two push-pull rods 1531 to move toward each other, the corresponding two shafts 16 are driven to move inward, so that the shaft 16 is separated from the corresponding shaft hole 17, and the door panel 12 can open the opening 111 from the first end, that is, the door panel 12 can rotate around the second end.

It can be understood that when the two push-pull rods 1531 at the first end move towards each other to drive the two rotating shafts 16 to move towards each other, under the action of the corresponding levers 151, the two rotating shafts 16 at the second end move towards the direction away from each other, and after the rotating shafts 16 at the first end are disengaged from the corresponding shaft holes 17, the protrusions 183 on the rotating shafts 16 at the second end move to the positions where the annular grooves 181 are located, so that the door panel 12 can rotate around the second end, and meanwhile, during the rotation of the door panel 12, the protrusions 183 on the rotating shafts 16 at the second end rotate along the corresponding annular grooves 181, so as to limit the rotating shafts 16 at the second end from being disengaged from the corresponding shaft holes 17 inwards, thereby preventing the user from performing misoperation, and preventing the door panel 12 from falling off the door frame 11.

In one embodiment, the handle element 1532 includes two handle bars 1533 connected in a cross-rotation manner, and one end of each of the two push-pull rods 1531 near the handle element 1532 is connected to the two handle bars 1533, so that a user can operate the handle element 1532 with one hand to synchronously drive the two push-pull rods 1531 to synchronously move towards each other, thereby enhancing the synchronization of the movement of the two push-pull rods 1531, facilitating the user operation, and enhancing the convenience of the user for opening the door panel 12.

The structure of the second driving member 154 is the same as and symmetrical to the structure of the first driving member 153, and is not described herein again.

In summary, in the door body 1 of the present invention, the first rotating connection mechanism 13 and the second rotating connection mechanism 14 are provided with the limiting structure 18 between the rotating shaft 16 and the shaft hole 17, and the limiting structure 18 is used for limiting the rotating shaft 16 at the rotating end to be separated from the shaft hole 17 inwards along the axial direction thereof in the rotating process of the door panel 12, that is, in the rotating process of the door panel 12, the rotating shaft 16 at the rotating end is not separated from the shaft hole 17, so that the rotating shafts 16 at the first end and the second end can be prevented from being separated from the shaft hole 17, the purpose of preventing the door panel 12 from being separated from the door frame 11 is achieved, the door panel 12 can be safely opened and closed from the first end or the second end, and the structure is simple.

It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.

The above-listed detailed description is only a specific description of a possible embodiment of the present invention, and they are not intended to limit the scope of the present invention, and equivalent embodiments or modifications made without departing from the technical spirit of the present invention should be included in the scope of the present invention.

Claims

1. A door body comprises a door frame with an opening, a door panel used for opening or closing the opening, two first rotating connecting mechanisms which are used for rotatably connecting a first end of the door panel to the door frame, two second rotating connecting mechanisms which are used for rotatably connecting a second end of the door panel opposite to the first end to the door frame, and a double door opening mechanism which enables the door panel to open the opening from the first end or the second end, wherein the first rotating connecting mechanisms and the second rotating connecting mechanisms respectively comprise rotating shafts and shaft holes which are arranged between the door frame and the door panel and are matched with each other; the method is characterized in that: first rotation coupling mechanism and second rotation coupling mechanism still all is including locating the pivot with limit structure between the shaft hole, limit structure is used for the door panel pivoted in-process, the restriction is located the rotation end and locates pivot or shaft hole internal displacement on the door panel.

2. The door body of claim 1, wherein: the limiting structure comprises a rotating shaft, an annular groove, a guide groove and a protrusion, wherein the rotating shaft is arranged on one of the shaft holes, the annular groove is communicated with the guide groove and extends along the axial direction of the rotating shaft or the shaft hole, the guide groove is arranged on the other of the rotating shaft or the shaft hole and is matched with the annular groove and the guide groove, the guide groove is used for guiding the protrusion to enter the annular groove or guiding the protrusion to be away from the annular groove so that the corresponding rotating shaft is separated from the shaft.

3. The door body of claim 2, wherein: the annular groove is recessed outwards from the inner side of the shaft hole along the circumferential direction of the shaft hole, and the guide groove is positioned on one side of the annular groove close to the rotating shaft; the protrusion is arranged on the rotating shaft.

4. The door body of claim 2, wherein: when the door panel is in a closed state, the protrusion is positioned in the guide groove; the double-door mechanism comprises a lever which is linked to the first rotating connecting mechanism and the second rotating connecting mechanism on the same side, and the lever is rotationally connected to the door panel.

5. The door body of claim 4, wherein: the shaft hole is arranged on the door frame, and two ends of the lever are respectively connected to the rotating shafts in the first rotating connecting mechanism and the second rotating connecting mechanism which are positioned at the same side.

6. The door body of claim 5, wherein: the lever is sleeved on the rotating shaft, and a limiting part used for limiting the lever to move relative to the rotating shaft along the axial direction of the rotating shaft is further arranged on the rotating shaft.

7. The door body of claim 6, wherein: the limiting part comprises two nuts in threaded connection with the rotating shaft, and the two nuts are located on two opposite sides of the lever respectively along the axial direction of the rotating shaft.

8. The door body according to any one of claims 1-7, wherein: the double-door mechanism further comprises a first driving piece and a second driving piece, wherein the first driving piece is located at the first end and drives the first rotating connecting mechanism, the first driving piece is located at the second end and drives the second rotating connecting mechanism, and the rotating shaft and the shaft hole of the second rotating connecting mechanism are separated from each other.

9. The door body of claim 8, wherein: one of the rotating shaft and the shaft hole is arranged on the door frame; the first driving piece and the second driving piece respectively comprise two push-pull rods connected to the other one of the rotating shaft and the shaft hole and a handle piece used for driving the two push-pull rods to move in opposite directions, and the two push-pull rods extend in opposite directions along the axial direction of the rotating shaft.

10. The door body of claim 9, wherein: the handle piece comprises two handle rods which are in cross rotating connection, and one ends of the two push-pull rods, which are close to the handle piece, are respectively connected with the two handle rods.