CN112086798A

CN112086798A - Safety door assembling structure of socket

Info

Publication number: CN112086798A
Application number: CN201911381808.8A
Authority: CN
Inventors: 叶龙; 马涛; 姜红梅; 田涵朴; 张森文
Original assignee: Henan Zilian Internet Of Things Technology Co ltd
Current assignee: Henan Zilian Internet Of Things Technology Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-12-15

Abstract

The invention relates to a safety door assembly structure of a socket. The safety door assembly structure of the socket comprises a safety door and a safety door supporting seat, wherein one of the back surface of the safety door and the front surface of the safety door supporting seat is provided with a guide convex rib, the other one is provided with a guide sliding chute, the guide convex rib and the guide sliding chute form a sliding supporting structure, the safety door is used for supporting the safety door and can slide back and forth, the safety door can swing left and right around the sliding support structure relative to the safety door support seat, the front surface of the safety door support seat and/or the back surface of the safety door are/is provided with support bulges, the support bulges are arranged on the left side and the right side of the sliding support structure, a problem that the assembly structure that is used for carrying on spacingly to the left and right directions swing amplitude of emergency exit, uses above-mentioned emergency exit assembly structure can solve current emergency exit and leads to for reducing the friction is stable inadequately, influence the outward appearance of product and the impression of user to the product.

Description

Safety door assembling structure of socket

Technical Field

The invention relates to a safety door assembly structure of a socket.

Background

The socket is a common electric appliance in daily life and comprises a wall socket and a flexibly movable adapter patch board. For safety, such as preventing children from being inserted by mistake and preventing foreign matters and moisture from entering, safety doors are arranged at the housing insertion holes on the socket at present. The safety door is also called a protective door, and when no plug is inserted into the socket, the safety door is kept at a closed position under the action of the spring to block the shell jacks on the socket; when the plug is inserted, the corresponding inserting sheet or inserting column on the plug acts on the inclined plane on the safety door to push the safety door to the opening position, and then the conductive connection of the inserting sheet or inserting column and the inserting elastic sheet in the socket can be realized.

The safety door on the existing socket is mostly assembled on the corresponding safety door supporting seat in a direct guiding way, and the back surface (namely the side surface back to the shell inserting hole) of the safety door is matched with the front surface (namely the side surface facing to the shell inserting hole) of the safety door supporting seat in a surface-to-surface contact mode. Since the plug is inserted by applying force to the safety door through the inclined surface, the force is decomposed into a force along the opening direction and a force perpendicular to the opening direction, and the force perpendicular to the opening direction increases the friction between the back surface of the safety door and the front surface of the safety door supporting seat, so that the plug is difficult to insert. The prior art generally addresses this in two ways: firstly, lubricating oil is added to the sliding part of the safety door, but the mode is easy to cause pollution; secondly, increase the inclination on emergency exit inclined plane, the dead phenomenon of card when increasing the inclination on emergency exit inclined plane and can alleviating the plug and insert, nevertheless the inclination increases to certain extent, can lead to the range increase that leaks of the grafting shell fragment in the emergency exit, appears the potential safety hazard, and the safety protection effect variation.

Chinese patent No. CN2744012Y discloses a socket device, which comprises a panel, wherein a housing insertion hole is formed on the panel, a cover plate is arranged on the inner surface of the panel, a safety door is arranged between the cover plate and the panel, and the cover plate forms a safety door support seat. The face of emergency exit supporting seat is protruding to be equipped with face of cylinder guide, and the emergency exit back is provided with face of cylinder recess, and face of cylinder recess constitutes the cooperation of sliding with face of cylinder guide adaptation, is favorable to reducing the friction. However, in order to ensure that the safety door is matched with the safety door supporting seat by a reduced friction surface in the sliding process, a large interval needs to be left between the back surface of the safety door and the front surface of the safety door supporting seat, however, by adopting the structure, the safety door assembling structure is not stable enough, and the safety door is in an inclined state when being observed from the shell inserting hole due to the left-right deflection caused by the factors such as assembly, vibration and the like, so that the appearance of a product and the impression of a user on the product are influenced.

Disclosure of Invention

The invention aims to provide a safety door assembly structure of a socket, which solves the problems that the assembly structure is not stable enough and the appearance of a product and the impression of a user on the product are influenced due to the fact that the friction of the conventional safety door is reduced.

In order to achieve the purpose, the invention adopts the following technical scheme:

safety door assembly structure of socket includes:

the safety door is provided with a front surface and a back surface, and the front surface of the safety door faces the shell jacks of the socket;

the safety door supporting seat is arranged on one side, facing the safety door, of the front side;

one of the back of the safety door and the front of the safety door supporting seat is provided with a guide convex rib, the other one of the back of the safety door and the front of the safety door supporting seat is provided with a guide sliding groove, the guide convex rib and the guide sliding groove form a sliding supporting structure, and the sliding supporting structure is used for supporting the safety door and allowing the safety door to slide back and forth;

the safety door can swing left and right around the sliding support structure relative to the safety door support seat;

supporting bulges are arranged on the front side of the safety door supporting seat and/or the back side of the safety door;

the support is protruding, all has the setting in the left and right sides of slip bearing structure for carry on spacingly to the left and right directions swing range of emergency exit.

Has the advantages that: the guide convex ribs and the guide sliding grooves are matched to form a sliding support structure, so that the sliding contact area is reduced, the sliding friction force of the safety door is further reduced, and the safety door can smoothly slide forwards and backwards; the front side of the safety door supporting seat and/or the back side of the safety door are/is provided with the supporting bulges, and the two sides of the sliding supporting structure are provided with the supporting bulges, so that the structural stability of the safety door is enhanced, the left-right deflection of the safety door is improved, and the influence on the appearance of a product and the impression of a user on the product is avoided; meanwhile, even if the safety door is inclined left and right under the action of the plug during use, small-area support can be formed through the support protrusion, so that the smooth opening of the safety door is not influenced, and the smooth action of the safety door is ensured.

Furthermore, the safety door is provided with a closing position and an opening position, and the front side of the safety door supporting seat is provided with a single insertion prevention bulge; the single insertion preventing bulge protrudes out of the front face of the safety door supporting seat, and when the safety door is in a closed position and swings left and right to a set angle under the action of a single-side inserted object, the single insertion preventing bulge and the safety door form a front and back stop to prevent the safety door from moving to an open position; the front surface of the safety door is provided with a plug acting point, and the plug acting point corresponds to a shell jack on the socket; the left-right distance between the supporting protrusion and the sliding supporting structure is smaller than the left-right distance between the corresponding side plug force application point and the sliding supporting structure, so that the safety door can swing to an angle of forming a front stop and a rear stop with the single-insertion preventing protrusion by taking the supporting protrusion as a fulcrum under the action of inserting an object on one side.

Has the advantages that: the left-right distance between the supporting protrusion and the sliding supporting structure is smaller than the left-right distance between the corresponding side plug force application point and the sliding supporting structure, so that the safety door can swing to an angle of a front stop and a rear stop with the single-insertion preventing protrusion by taking the supporting protrusion as a fulcrum under the action of a single-side inserted object, and the single-side insertion preventing function of the safety door is prevented from being out of work.

Further, the width of the guide sliding groove is larger than that of the guide convex rib.

Has the advantages that: the width of the guide sliding groove is larger than that of the guide convex rib, so that the safety door can adapt to different insertion postures of the plug, the supporting position of the supporting seat of the safety door is automatically adjusted, and the flexible action of the safety door is guaranteed.

Furthermore, both sides all are equipped with first supporting protrusion and second supporting protrusion about the bearing structure slides, and the second supporting protrusion is located one side that sliding support structure was kept away from to first supporting protrusion, and first supporting protrusion and second supporting protrusion arrange along the direction of keeping away from sliding support structure gradually promptly, and the second supporting protrusion can supply the swing of emergency exit left and right direction's range to be greater than first supporting protrusion can supply the swing of emergency exit left and right direction's range.

Has the advantages that: the first supporting bulge and the second supporting bulge can be used for the safety door to swing in the left and right directions in different ranges, and two-stage support can be formed for the safety door, so that the safety door can be centered according to the stress condition of the safety door in a grading manner, and the stability of the safety door can be better guaranteed.

Further, the back of emergency exit is equipped with first inclined plane and second inclined plane, and interval arrangement about first inclined plane and the second inclined plane is equipped with the bulge between first inclined plane and the second inclined plane, is equipped with on the bulge the direction spout, the notch mouth edge protrusion in corresponding first inclined plane or second inclined plane of direction spout, first support arch is along forming by the notch mouth edge of direction spout.

Has the advantages that: the notch mouth edge of direction spout forms first support arch, need not to set up first support arch alone, simple structure.

Furthermore, a supporting concave part is arranged on the front surface of the safety door supporting seat, and the guide convex rib is arranged on the bottom surface of the supporting concave part; the first supporting protrusion is matched with the side wall stop of the supporting concave part to limit the swing of the safety door.

Has the advantages that: the first supporting protrusion is matched with the side wall of the supporting concave part in a stop manner to limit the swing of the safety door, so that the supporting structure is more stable. Effectively utilize the space in the emergency exit mounting groove on the installation door supporting seat, reduce the interval between emergency exit and the emergency exit supporting seat, further guarantee the stability of emergency exit.

Furthermore, the front surface of the safety door supporting seat is a plane, and the corresponding supporting bulge is arranged on the plane.

Has the advantages that: simple structure, the manufacturing of the emergency exit supporting seat of being convenient for also can conveniently realize the control to the support of support protrusion height to can control the amplitude of fluctuation better.

Further, the slide left and right sides at the front of emergency exit supporting seat and the back of emergency exit all are the plane, have the clearance between the front of emergency exit supporting seat and the back of emergency exit, and the clearance is used for guaranteeing that the emergency exit can pass through the cooperation of slip bearing structure direction, the support arch is established on the plane.

Has the advantages that: by adopting the structure, the safety door supporting seat and the safety door can be conveniently manufactured, and the supporting height of the supporting bulge can be conveniently controlled, so that the swing amplitude can be better controlled.

Furthermore, the second supporting protrusion is formed by a front junction part of the supporting concave part and the safety door supporting seat, and the second supporting protrusion is used for being matched with the first inclined plane or the second inclined plane in a stopping way to limit the swinging of the safety door.

Has the advantages that: the second supporting bulge is formed by the front junction part of the supporting concave part and the safety door supporting seat, the second supporting bulge does not need to be arranged independently, and the structure is simple.

The above-described preferred embodiments may be adopted alone, or two or more embodiments may be arbitrarily combined when they can be combined, and the embodiments formed by the combination are not specifically described here and are included in the description of the present patent.

Drawings

Fig. 1 is a perspective view illustrating a safety door assembly structure of a receptacle according to the present invention in a state in which the safety door assembly structure is used in the receptacle;

FIG. 2 is an enlarged schematic view at A in FIG. 1;

FIG. 3 is a front view of the receptacle of FIG. 1;

FIG. 4 is a sectional view taken along line B-B of FIG. 3;

FIG. 5 is a schematic cross-sectional view of the assembled structure of the two-hole safety door of FIG. 1;

FIG. 6 is an enlarged schematic view at C of FIG. 5;

figure 7 is a schematic view of the two-hole safety door of figure 1.

The names of the components corresponding to the corresponding reference numerals in the drawings are:

1-two-hole safety door, 2-safety door supporting seat, 3-plug force application point, 4-first inclined plane, 5-second inclined plane, 6-first supporting protrusion, 7-guiding sliding groove, 8-supporting concave part, 9-guiding convex rib, 10-second supporting protrusion, 11-single insertion preventing protrusion, 12-screw, 13-safety door mounting groove, 14-safety door pressing cover, 15-decorative cover, 16-shell inserting hole, 17-three-hole safety door and 18-buried wall shell.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, 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 recitation of "comprising an … …" may occur without the exclusion of additional like elements present in the process, method, article, or apparatus that comprises the element.

In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.

The present invention will be described in further detail with reference to examples.

Embodiment 1 of safety door assembling structure of socket in the present invention: the safety door assembly structure is used in a receptacle as shown in fig. 1, which includes a buried wall housing 18, a safety door cover 14, and a cosmetic cover 15. A safety door supporting seat 2 and a safety door are arranged in the wall-buried shell 18, and the safety door comprises a two-hole safety door 1 and a three-hole safety door 17. As shown in fig. 2, the emergency gate support base 2 is provided with an emergency gate installation groove 13, and the emergency gate installation groove 13 is provided with two locations for assembling the two-hole emergency gate 1 and the three-hole emergency gate 17, respectively, and the emergency gate can slide back and forth in the corresponding emergency gate installation groove 13. A spring (not shown in the figure) is arranged between the safety door and the safety door supporting seat 2 and is used for resetting the safety door. The safety door gland 14 is fixed on the wall buried shell 18 through the screw 12 and covers the groove of the safety door mounting groove 13, so that the safety door can be limited. The decorative cover 15 is fastened on the top of the buried wall case 18 and the safety door cover 14 to decorate the socket.

The two-hole safety door 1 and the three-hole safety door 17 in this embodiment are different in shape and the same as the front surface fitting structure of the safety door support base 2, and only the assembly structure of the two-hole safety door 1 will be described in this embodiment.

For convenience of description, the left-right direction of fig. 5 is defined as the left-right direction of the assembly structure of the two-hole safety door 1, the up-down direction of fig. 5 is defined as the up-down direction of the assembly structure of the two-hole safety door 1, and one side of the two-hole safety door 1 and the safety door support base 2 facing the housing insertion hole 16 of the socket in fig. 3 and 4 is the front side, and the other side is the back side.

When the two hole safety doors 1 are in the closed positions, the inserting elastic pieces in the socket are shielded, and when the two hole safety doors 1 are in the open positions, the inserting elastic pieces in the socket are exposed.

As shown in fig. 4, the two-hole safety door 1 has a front surface and a back surface, the front surface has a plug force point 3, and the plug force point 3 corresponds to the housing insertion hole 16 on the socket for receiving the pressure when the plug is inserted. As shown in fig. 7, the back surface of the two-hole safety door 1 is provided with a first inclined surface 4 and a second inclined surface 5, and the first inclined surface 4 and the second inclined surface 5 are arranged at a left-right interval and are gradually inclined upward from a direction away from the middle part of the back surface of the two-hole safety door 1 in the left-right direction, so as to provide a space for the two-hole safety door 1 to swing left and right.

A bulge part is arranged between the first inclined plane 4 and the second inclined plane 5, a guide sliding groove 7 is arranged on the bulge part, notch edges at two sides of the guide sliding groove 7 respectively protrude out of the corresponding first inclined plane 4 and the second inclined plane 5, and a first supporting bulge 6 is formed at the notch edge of the guide sliding groove 7.

As shown in fig. 5, the safety door support base 2 is provided with a recess in the middle in the left-right direction on the front surface thereof, the recess forming a support recess 8. The supporting concave part 8 is provided with a bottom surface and a side wall, a guide convex rib 9 is arranged on the bottom surface of the supporting concave part 8, and the upper part of the guide convex rib 9 is semicircular and is used for realizing line contact matching with the guide sliding groove 7. The cooperation of direction fin 9 and direction spout 7 forms the support structure that slides, and the support structure that slides is used for supporting two hole emergency exits 1 and supplies two hole emergency exits 1 to slide on the support structure that slides, and two hole emergency exits 1 can be for emergency exit supporting seat 2 around the support structure horizontal hunting that slides.

The left and right sides of the guide convex rib 9 are vertical to the front of the safety door supporting seat 2, and the width of the guide sliding chute 7 is larger than that of the guide convex rib 9. As shown in fig. 6, when the two-hole safety door 1 is in the middle position of the horizontal swing, a gap exists between the first supporting protrusion 6 and the side wall of the supporting recess 8, and meanwhile, the first supporting protrusion 6 can form a stop fit with the two-hole safety door 1 during the horizontal swing of the two-hole safety door 1 to limit the swing range of the two-hole safety door 1.

As shown in fig. 6, the second supporting protrusion 10 is formed at the front boundary portion between the side wall of the supporting recess 8 and the safety door support 2, when the two-hole safety door 1 is at the intermediate position of the horizontal swing, a gap exists between the second supporting protrusion 10 and the first inclined surface 4 or the second inclined surface 5, and during the swing of the two-hole safety door 1, the second supporting protrusion 10 may contact with the first inclined surface 4 or the second inclined surface 5 to form a stop fit to limit the swing of the two-hole safety door 1.

The both sides all are equipped with first support arch 6 and second support arch 10 about sliding support structure for carry on spacingly to the left and right directions swing range of two hole emergency exits 1, first support arch 6 and second support arch 10 are arranged along the direction of keeping away from sliding support structure gradually, second support arch 10 is located one side that sliding support structure was kept away from to first support arch 6 promptly, second support arch 10 can supply the 1 left and right directions wobbling range of two hole emergency exits to be greater than the 1 left and right directions wobbling range of first support arch 6 of two hole emergency exits.

As shown in fig. 2, a single insertion preventing protrusion 11 is further disposed on the front surface of the emergency exit support base 2, the single insertion preventing protrusion 11 protrudes out of the front surface of the emergency exit support base 2, and swings left and right under the action of a single-side inserted object when the two-hole emergency exit 1 is in a closed position, and when one end of the first inclined surface 4 or the second inclined surface 5, which is far away from the middle portion, is lower than the upper end surface of the single insertion preventing protrusion 11, the single insertion preventing protrusion 11 and the two-hole emergency exit 1 form a front and back stop to prevent the two-hole emergency exit 1 from moving to an open.

The left-right distance between the second supporting protrusion 10 and the sliding supporting structure is smaller than the left-right distance between the corresponding side plug force application point 3 and the sliding supporting structure, so that the two-hole safety door 1 can swing to an angle of front-back stopping with the single-insertion preventing protrusion 11 by taking the second supporting protrusion 10 as a fulcrum under the action of inserting an object on one side.

During the assembly, install two hole emergency exits 1 on emergency exit supporting seat 2, the direction fin 9 on direction spout 7 of two hole emergency exits 1 and the emergency exit supporting seat 2 cooperatees, and first support arch 6 and second support arch 10 can carry on spacingly to the horizontal hunting range of two hole emergency exits 1 for 1 assembly structure of two hole emergency exits is stable, and the aesthetic property is good, has also guaranteed the normal slip of two hole emergency exits 1 simultaneously. When an object is inserted into one side of the shell insertion hole 16, the first inclined surface 4 or the second inclined surface 5 on the left side and the right side of the two-hole safety door 1 can form stop matching with the single-insertion preventing protrusion 11, so that the safety protection effect of the two-hole safety door 1 is ensured.

Embodiment 2 of the present invention is different from embodiment 1 in that two support projections in embodiment 1 are provided at the left and right direction middle portions of the safety door and the safety door support base, respectively, whereas both support projections in this embodiment are provided at the left and right direction middle portion of the safety door. In other embodiments, the two support protrusions may be both provided at the left and right middle portions of the emergency gate support base.

Embodiment 3 of the present invention is different from embodiment 1 in that, in embodiment 1, two support projections are provided at the middle portions of the safety door and the safety door support base in the left-right direction, respectively, in order to have the single insertion prevention function, whereas in this embodiment, the safety door does not have the single insertion prevention function, and two support projections are provided at both sides of the safety door in the left-right direction. In other embodiments, the two support protrusions may be provided on both sides of the emergency gate support base in the left-right direction.

Embodiment 4 of the present invention is different from embodiment 1 in that two support protrusions are provided on each of the left and right sides of the sliding support structure in embodiment 1, and only one support protrusion is provided on each of the left and right sides of the sliding support structure in this embodiment.

Embodiment 5 of the present invention is different from embodiment 1 in that the width of the guide sliding groove is larger than the width of the guide rib in embodiment 1, and the width of the guide sliding groove matches with the width of the guide rib in this embodiment.

Embodiment 6 of the present invention is different from embodiment 1 in that the front surface of the safety door support base in embodiment 1 is provided with a support concave portion, whereas in this embodiment, the front surface of the safety door support base is a flat surface, and the corresponding support protrusion is provided on the flat surface.

Embodiment 7 of the present invention is different from embodiment 1 in that the back surface of the safety door in embodiment 1 has two inclined surfaces, and the front surface of the safety door support base has a support concave portion, whereas in this embodiment, the left and right sides of the slide ways on the front surface of the safety door support base and the back surface of the safety door are both flat surfaces, and a gap is provided between the front surface of the safety door support base and the back surface of the safety door to ensure that the safety door can be guided and fitted by the sliding support structure, and at this time, the support protrusion is provided on the corresponding flat surface.

The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.

Claims

1. Safety door assembly structure of socket includes:

the method is characterized in that:

2. The emergency gate assembling structure according to claim 1, wherein the emergency gate has a closed position and an open position, and the emergency gate supporting base is provided with a single insertion preventing projection on a front surface thereof;

the single insertion preventing bulge protrudes out of the front face of the safety door supporting seat, and when the safety door is in a closed position and swings left and right to a set angle under the action of a single-side inserted object, the single insertion preventing bulge and the safety door form a front and back stop to prevent the safety door from moving to an open position;

the front surface of the safety door is provided with a plug acting point, and the plug acting point corresponds to a shell jack on the socket;

the left-right distance between the supporting protrusion and the sliding supporting structure is smaller than the left-right distance between the corresponding side plug force application point and the sliding supporting structure, so that the safety door can swing to an angle of forming a front stop and a rear stop with the single-insertion preventing protrusion by taking the supporting protrusion as a fulcrum under the action of inserting an object on one side.

3. The safety door assembling structure according to claim 2, wherein the width of the guide sliding groove is greater than the width of the guide rib.

4. The emergency gate assembling structure according to claim 2 or 3, wherein the sliding support structure is provided at both left and right sides thereof with first and second support protrusions, and the second support protrusion is located at a side of the first support protrusion remote from the sliding support structure, that is, the first and second support protrusions are arranged in a direction gradually remote from the sliding support structure, and a range in which the second support protrusion can allow the emergency gate to swing in the left-right direction is larger than a range in which the first support protrusion can allow the emergency gate to swing in the left-right direction.

5. The safety door assembly structure according to claim 4, wherein the back surface of the safety door is provided with a first inclined surface and a second inclined surface, the first inclined surface and the second inclined surface are arranged at intervals in the left-right direction, a protrusion portion is provided between the first inclined surface and the second inclined surface, the protrusion portion is provided with the guide sliding groove, a notch edge of the guide sliding groove protrudes from the corresponding first inclined surface or second inclined surface, and the first support protrusion is formed by a notch edge of the guide sliding groove.

6. The safety door assembling structure according to claim 5, wherein a support recess is provided on a front surface of the safety door support base, and the guide rib is provided on a bottom surface of the support recess;

the first supporting protrusion is matched with the side wall stop of the supporting concave part to limit the swing of the safety door.

7. The safety door assembling structure according to claim 4, wherein the front surface of the safety door supporting base is a plane on which the respective supporting projections are provided.

8. The safety door assembling structure according to claim 4, wherein the left and right sides of the slide way of the front surface of the safety door supporting base and the back surface of the safety door are flat surfaces, and a gap is provided between the front surface of the safety door supporting base and the back surface of the safety door for ensuring the guide engagement of the safety door by the sliding supporting structure, and the supporting protrusions are provided on the flat surfaces.

9. The emergency gate assembling structure according to claim 6, wherein the second support protrusion is formed at a front interface of the support recess and the emergency gate support base, and the second support protrusion is adapted to stop-cooperate with the first inclined surface or the second inclined surface to limit the swing of the emergency gate.