CN215979149U - Safety door sill with indicating function - Google Patents

Abstract

The utility model relates to a safety door sill with an indicating function, which has the technical scheme that: the method comprises the following steps: the door handle mechanism comprises a door frame mechanism, a door fence capable of sealing the door frame mechanism and a door handle mechanism; the door frame mechanism is provided with an indicating piece for observing the opening and closing state of the door fence; the end part of the indicating piece is abutted against the door handle mechanism; the door frame mechanism is also provided with a rotating shaft sleeve; a rotating shaft is arranged at the upper rotating end of the door sill; the rotating shaft sleeve is sleeved at the end part of the rotating shaft; the lower rotating end of the door sill is hinged with the door frame mechanism; the door handle mechanism is slidably arranged on the door rail; the door handle mechanism is detachably connected with the door frame mechanism; this application has the open and close state that can instruct the door fence and the advantage that the door fence can self-closing.

Description

Safety door sill with indicating function

Technical Field

The utility model relates to the technical field of door fences, in particular to a safety door fence with an indicating function.

Background

In order to prevent children from entering dangerous areas in general households, for example: in places such as kitchens, stairs or bathrooms, the range of activities of infants is limited by using a door fence, and the door fence can be arranged at an entrance and an exit communicated with limited areas such as kitchens and staircases.

However, the existing door fences in the market cannot be automatically closed after being opened, and people cannot know whether the door fences are completely locked after being closed, so that the door fences cannot play a limiting role under the condition that people forget to close the doors or the doors are not completely locked, and further pets or children are separated from the limited moving range of the pets or children, and adverse effects or dangers are generated.

SUMMERY OF THE UTILITY MODEL

Aiming at the defects in the prior art, the utility model aims to provide a safety door fence with an indicating function, which has the advantages that the opening and closing state of the door fence can be indicated, and the door fence can be automatically closed.

The technical purpose of the utility model is realized by the following technical scheme: a security door sill with indicating function comprising: the door handle mechanism comprises a door frame mechanism, a door fence capable of sealing the door frame mechanism and a door handle mechanism; the door frame mechanism is provided with an indicating piece for observing the opening and closing state of the door fence; the end part of the indicating piece is abutted against the door handle mechanism; the door frame mechanism is also provided with a rotating shaft sleeve; a rotating shaft is arranged at the upper rotating end of the door sill; the rotating shaft sleeve is sleeved at the end part of the rotating shaft; the lower rotating end of the door sill is hinged with the door frame mechanism; the door handle mechanism is slidably arranged on the door rail; the door handle mechanism is detachably connected with the door frame mechanism.

Optionally, the indication piece is provided with a first indication block for indicating that the door sill is in an open state and a second indication block for indicating that the door sill is in a closed state.

Optionally, a projection is arranged on the rotating shaft; a guide groove for the lug to slide is arranged on the rotating shaft sleeve; the guide groove is provided with a first positioning groove and a second positioning groove which are correspondingly matched with the lug; under the condition that the lug is positioned in the first positioning groove, the door sill is in a closed state; and under the condition that the lug is positioned in the second positioning groove, the door sill is in an opening state.

Optionally, a lifting rod for locking the door sill on the door frame mechanism is arranged on the door sill; one end of the lifting rod penetrates through the door fence and then is slidably arranged on the door handle mechanism, and the other end of the lifting rod penetrates through the door fence and then is detachably connected with the door frame mechanism.

Optionally, the door frame mechanism includes: the door frame, fixed sleeve, and several door frame fixed assemblies; the rotating shaft sleeve is arranged on the door frame; the fixed sleeve is arranged on the door frame; the door handle mechanism is detachably connected with the fixed sleeve; the indicator is rotatably arranged in the fixed sleeve; the fixing sleeve is provided with an indicating hole correspondingly matched with the indicating piece; the plurality of door frame fixing components are all arranged on the door frame; the door frame is hinged with the lower rotating end of the door sill; the other end of the lifting rod passes through the door sill and is detachably connected with the door frame.

Optionally, the door frame fixing assembly includes: the adjusting screw rods are used for fixing the door frame on the walls on two sides; the adjusting screw rod is slidably arranged on the door frame; the adjusting nut is in threaded connection with the adjusting screw rod.

Optionally, a lifting rod lower fixing sleeve is arranged on the door frame and right below the lifting rod; the other end of the lifting rod penetrates through the door sill and then is detachably connected with the lower fixed sleeve of the lifting rod.

Optionally, the door handle mechanism comprises: the handle, the elastic buckle, the key and a reset spring for resetting the pushed elastic buckle; the handle is arranged on the door sill in a sliding manner; one end of the lifting rod penetrates through the door sill and then can be arranged on the handle in a sliding mode; one end of the elastic buckle is slidably arranged in the handle, and the other end of the elastic buckle is detachably connected with the fixed sleeve; the end part of the indicating piece is abutted against the elastic buckle; the key is arranged on the handle in a sliding manner; the end part of the key is fixedly connected with the elastic buckle; one end of the reset spring is fixedly connected with the elastic buckle, and the other end of the reset spring is fixedly connected with the handle.

Optionally, a handle slope for pushing the lifting rod is arranged on the handle; and one end of the lifting rod is provided with a lifting rod slope correspondingly matched with the handle slope.

Optionally, a clown blocking sheet for protecting the hand is arranged on the handle.

In conclusion, the utility model has the following beneficial effects: when the restricted area is required to move, the safety door sill is installed at the entrance and exit of the restricted area; finding a proper place, and respectively adjusting four adjusting nuts on the left side and the right side of the door frame, so that the adjusting nuts rotate to drive the adjusting screws to be ejected outwards, and the adjusting screws on the two sides are abutted against the walls on the two sides of the channel, thereby completing the installation of the safety door sill; the door fence is in a closed state after being installed, and when the door fence is to be opened: the whole handle is moved to the right direction by pressing the key upwards, the handle drives the lifting rod to lift the lifting rod upwards, the lower end of the lifting rod leaves the door frame after being lifted, and the door fence can be rotated and opened along the door frame; when the door fence is in a closed state, the elastic buckle is abutted to the indicating piece, so that the second indicating block is positioned below the indicating hole, and when the door fence is in an open state, the elastic buckle is separated from the indicating piece, so that the first indicating block is positioned below the indicating hole; when the door sill is opened to a position with an included angle of 90 degrees with the door frame, the door sill can stay at the position through the matching relation of the rotating shaft and the rotating shaft sleeve; when the door fence is not completely opened and the included angle between the door fence and the door frame is larger than a certain angle, the door fence can be automatically closed through the matching relation between the rotating shaft and the rotating shaft sleeve.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the indicator construction of the present invention;

FIG. 3 is a schematic view of the structure of the spindle and the spindle sleeve of the present invention;

FIG. 4 is a schematic view of the door handle assembly of the present invention.

In the figure: 1. a door frame mechanism; 11. a door frame; 12. fixing a sleeve; 13. a door frame fixing component; 131. adjusting the screw rod; 132. adjusting the nut; 14. a lower fixing sleeve of the lifting rod; 2. a door sill; 3. a lifting bar; 4. a door handle mechanism; 41. a handle; 42. snapping; 43. pressing a key; 44. a return spring; 51. a rotating shaft; 52. a rotating shaft sleeve; 61. a bump; 62. a guide groove; 621. a first positioning groove; 622. a second positioning groove; 71. a handle slope; 72. a lift bar ramp; 8. an indicator; 81. a first indication block; 82. a second indication block; 9. indicating the hole.

Detailed Description

In order to make the objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. Several embodiments of the utility model are presented in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations. The terms "first", "second" and "first" 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 the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature. The terms "vertical," "horizontal," "left," "right," "up," "down," and the like are used for descriptive purposes only and are not intended to indicate or imply that the referenced devices or elements must be in a particular orientation, configuration, and operation, and therefore should not be construed as limiting the present invention.

The utility model is described in detail below with reference to the figures and examples.

As shown in fig. 1, the present invention provides a safety door sill with indication function, comprising: the door lock comprises a door frame mechanism 1, a door fence 2 capable of sealing the door frame mechanism 1 and a door handle mechanism 4; the door frame mechanism 1 is provided with an indicating piece 8 for observing the opening and closing state of the door sill 2; the end part of the indicator 8 is abutted against the door handle mechanism 4; a rotating shaft sleeve 52 is also arranged on the door frame mechanism 1; a rotating shaft 51 is arranged at the upper rotating end of the door sill 2; the rotating shaft sleeve 52 is sleeved at the end part of the rotating shaft 51; the lower rotating end of the door sill 2 is hinged with the door frame mechanism 1; the door handle mechanism 4 is slidably arranged on the door sill 2; the door handle mechanism 4 is detachably connected with the door frame mechanism 1.

Installing the door sill of the application at the entrance and exit of the area needing to limit the activity: finding a proper place, such as walls on two sides of an entrance channel, and adjusting the door frame mechanism 1 to ensure that the door frame mechanism 1 can be fixed between the two sides of the channel to complete the installation of the door fence;

the door sill is in a closed state after being installed, when the door sill 2 on the door frame mechanism 1 is to be opened, the door handle mechanism 4 is operated and started, the door handle mechanism 4 moves rightwards and is separated from the door frame mechanism 1, the lifting rod 3 is lifted upwards in the process that the door handle mechanism 4 moves rightwards, and the lower end of the lifting rod 3 is separated from the door frame mechanism 1; after the separation is finished, the door handle mechanism 4 can drive the door sill 2 to rotate outwards, the upper rotating end of the door sill 2 rotates on the rotating shaft sleeve 52 through the rotating shaft 51, and the lower rotating end of the door sill 2 rotates on the door frame mechanism 1, so that the door sill 2 rotates and is opened;

when the door fence 2 is in a closed state, the door handle mechanism 4 is abutted against the indicator 8, so that the indicator 8 indicates that the door fence 2 is in the closed state, and when the door fence 2 is in an open state, the door handle mechanism 4 is separated from the indicator 8, so that the indicator 8 indicates that the door fence 2 is in the open state;

when the door sill 2 is opened to a position with an included angle of 90 degrees with the door frame assembly 1, the door sill 2 can stay at the position through the matching relation of the rotating shaft 51 and the rotating shaft sleeve 52; when the door sill 2 is not completely opened and the included angle between the door sill 2 and the door frame is larger than 25 degrees, the door sill 2 can be automatically reset and closed through the matching relationship between the rotating shaft 51 and the rotating shaft sleeve 52.

Further, as shown in fig. 2, the indicator 8 is provided with a first indicator block 81 for indicating that the door sill 2 is in the open state and a second indicator block 82 for indicating that the door sill 2 is in the closed state.

In this embodiment, the first indication block 81 is a green indication block, and the second indication block 82 is a red indication block; when the door sill 2 is in a closed state, the door handle mechanism 4 is abutted against the indicating piece 8, and the indicating piece 8 rotates for a certain angle, so that the indicating piece 8 shows a red position outwards when the door sill is in the closed state; when the door sill 2 is in the open state, the door handle mechanism 4 is separated from the indicator 8, and the indicator 8 is reset, so that the indicator 8 is outwardly shown in the green position when the door sill 2 is in the open state.

Further, as shown in fig. 3, a protrusion 61 is disposed on the rotating shaft 51; a guide groove 62 for sliding the lug 61 is arranged on the rotating shaft sleeve 52; the guide groove 62 is provided with a first positioning groove 621 and a second positioning groove 622 correspondingly matched with the projection 61; when the projection 61 is located in the first positioning slot 621, the door rail 2 is in a closed state; with the projection 61 located in the second positioning slot 622, the door rail 2 is in an open state.

In this embodiment, there are one first positioning groove 621, two second positioning grooves 622, and the two second positioning grooves 622 are respectively and symmetrically arranged on two sides of the rotating shaft sleeve 52 with the first positioning groove 621 as a symmetric center;

the cam 61 has three operating positions on the guide groove 62, respectively a closed position, an automatic closed position and a vertical open position; wherein the closed position is that the included angle between the door fence 2 and the door frame component 1 is 0 degrees, the vertical opening position is that the included angle between the door fence 2 and the door frame component 1 is 90 degrees, and the automatic closed position is that the included angle between the door fence 2 and the door frame component 1 is 25-80 degrees; the guide groove 62 is located at the automatic closing position and has a section of slope, the starting point of the slope is located at the second positioning groove 622, the end point of the slope is located at the first positioning groove 621, and the height of the starting point of the slope is higher than that of the end point;

when the door sill 2 is in the closed state, the projection 61 is located in the first positioning groove 621 on the guide groove 62; when the door sill 2 is opened to the position where the included angle between the door sill 2 and the door frame assembly 1 is 90 degrees, the projection 61 is positioned in the second positioning groove 622 on the guide groove 62; when the door sill 2 is opened to form an included angle of 25-80 degrees with the door frame assembly 1, the lug 61 is located at an automatic closing position on the guide groove 62;

when the door sill 2 is in a closed state or is opened to a position with an included angle of 90 degrees with the door frame assembly 1, the convex block 61 is fixed on the guide groove 62; when the door sill 2 is opened to form an included angle of 25 degrees to 80 degrees with the door frame assembly 1, the projection 61 slowly slides from a high position to a low position along the slope on the guide groove 62, and the projection 61 stops moving when sliding into the first positioning groove 621, so that the automatic closing effect of the door sill is realized.

Further, a lifting rod 3 for locking the door sill 2 on the door frame mechanism 1 is arranged on the door sill 2; one end of the lifting rod 3 is slidably arranged on the door handle mechanism 4 after penetrating through the door sill 2, and the other end of the lifting rod 3 is detachably connected with the door frame mechanism 1 after penetrating through the door sill 2.

The lifting rod 3 penetrates through the door sill 2 and is detachably connected with the door frame 11, when the door sill 2 is in a closed state, the lifting rod 3 penetrates through the door sill 2 and is connected with the door frame 11, and the door sill 2 cannot be opened under the fixing action of the lifting rod 3; when the door sill 2 needs to be opened, the door sill 2 can be opened only after the door handle mechanism 4 is pushed to drive the lifting rod 3 to lift upwards and leave the door frame 11.

Further, the door frame mechanism 1 includes: the door frame 11, the fixed sleeve 12 and a plurality of door frame fixing components 13; the rotating shaft sleeve 52 is arranged on the door frame 11; the fixed sleeve 12 is arranged on the door frame 11; the door handle mechanism 4 is detachably connected with the fixed sleeve 12; said indicator 8 is rotatably arranged in the fixation sleeve 12; the fixed sleeve 12 is provided with an indicating hole 9 correspondingly matched with the indicating piece 8; the plurality of door frame 11 fixing components are all arranged on the door frame 11; the door frame 11 is hinged with the lower rotating end of the door sill 2; the other end of the lifting rod 3 passes through the door sill 2 and is detachably connected with the door frame 11.

The fixed sleeve 12 is mounted on the door frame 11 and detachably connected with the door handle mechanism 4, and is used for fixing the door rail 2 with the door handle mechanism 4 on the door frame 11 after the door rail 2 is closed; set up on fixed cover 12 and correspond the instruction hole 9 of adaptation with indicator 8, when making indicator 8 rotate in fixed cover 12, first instruction piece 81 and second instruction piece 82 on indicator 8 can turn to the below of instructing hole 9 respectively, and the user can see the instruction position of indicator 8 through instructing hole 9 to obtain the operating condition of safety door fence, and then can judge whether there is complete locking in door fence 2 through the colour, and wherein red is for closing, and green is for opening.

Further, the door frame fixing assembly 13 includes: an adjusting nut 132 and an adjusting screw 131 for fixing the door frame 11 to the two side walls; the adjusting screw 131 is slidably arranged on the door frame 11; the adjusting nut 132 is in threaded connection with the adjusting screw 131.

In the embodiment, a plurality of door frame fixing components 13 are respectively installed on four corners of the door frame 11 (two of the door frame fixing components 13 are respectively installed on the fixing sleeve 12 and the rotating shaft sleeve 52), and a stable installation effect is obtained through uniform stress;

when the safety door sill needs to be installed at a proper place, after the position of the safety door sill is adjusted, the four adjusting nuts 132 on the left side and the right side of the door frame 11 are respectively adjusted, so that the adjusting nuts 132 rotate to drive the adjusting screws 131 to slide outwards, and the adjusting screws 131 on the two sides are further pressed against the walls on the two sides of the channel; when the door frame 11 is pushed by force, the door frame 11 will not move, and the installation of the safety door fence can be completed.

Further, a lifting rod lower fixing sleeve 14 is arranged on the door frame 11 and right below the lifting rod 3; the other end of the lifting rod 3 passes through the door sill 2 and then is detachably connected with a lower fixing sleeve 14 of the lifting rod.

In the present embodiment, the lower fixing sleeve 14 of the lifting rod, which is arranged on the door frame 11, is a plastic fixing sleeve; when the lifting rod 3 is connected with the lifting rod lower fixing sleeve 14, the lifting rod lower fixing sleeve 14 can prevent the lifting rod 3 from directly contacting with the door frame 11 to generate adverse effects such as noise, scratch and the like, and plays a role in buffering the lower end of the lifting rod 3.

Further, as shown in fig. 4, the door handle mechanism 4 includes: a handle 41, a latch 42, a push button 43, and a return spring 44 for returning the pushed latch 42; the handle 41 is slidably arranged on the door sill 2; one end of the lifting rod 3 can be slidably arranged on the handle 41 after passing through the door sill 2; one end of the elastic buckle 42 is slidably arranged in the handle 41, and the other end of the elastic buckle 42 is detachably connected with the fixed sleeve 12; the end of the indicator 8 is abutted against the elastic buckle 42; the key 43 is slidably arranged on the handle 41; the end part of the key 43 is fixedly connected with the elastic buckle 42; one end of the return spring 44 is fixedly connected with the elastic buckle 42, and the other end of the return spring 44 is fixedly connected with the handle 41.

When the door sill 2 is opened, the handle 41 can be pushed to move rightwards after the key 43 is pressed upwards; when the button 43 is pressed, the button 43 moves upwards and drives the elastic buckle 42 to move upwards, so that the elastic buckle 42 is separated from the fixed sleeve 12 on the door frame 11, and the handle 41 can move rightwards after separation; after the fixing sleeve 12 is separated, the elastic buckle 42 resets under the action of the reset spring 44, and the key 43 also resets along with the elastic buckle 42; when the handle 41 moves rightwards, the lifting rod 3 is driven to move upwards in a lifting manner, so that the lifting rod 3 is separated from the lifting rod lower fixing sleeve 14 on the door frame 11; after the two are separated, the door sill 2 can be rotated and opened;

when the door sill 2 is in a closed state, the end part of the indicator 8 is abutted against the elastic buckle 42, the second indicator block 82 is positioned right below the indicator hole 9, and at the moment, the indicator 8 outwards shows a red position through the indicator hole 9; when the door sill 2 is in the open state, the end of the indicator 8 is separated from the snap 42, the first indicator block 81 is located right below the indicator hole 9, and the indicator 8 is shown in the green position through the indicator hole 9.

Further, a handle slope 71 for pushing the lifting rod 3 is arranged on the handle 41; one end of the lifting rod 3 is provided with a lifting rod slope 72 correspondingly matched with the handle slope 71.

In this embodiment, the handle slope 71 abuts against the lifting rod slope 72, and the handle slope 71 is located at the lower end of the lifting rod slope 72, so that the handle slope 71 can drive the lifting rod slope 72 to move up and down when moving left and right, and thus the lifting rod slope 72 drives the lifting rod 3 to move up and down;

when the door sill 2 is opened, the handle 41 is pushed to move rightwards, the handle slope 71 on the handle 41 moves rightwards together with the handle slope, and the lifting rod slope 72 arranged at the end part of the lifting rod 3 is pushed by the handle slope 71 to move upwards to lift the lifting rod 3, so that the lifting rod 3 is driven to move upwards to be lifted, the lifting rod 3 is separated from the lifting rod lower fixing sleeve 14 on the door frame 11, and the door sill 2 can rotate on the door frame 11 and be opened; handle 41 moves to the left when reset.

Furthermore, a clown mask for protecting the hands is arranged on the handle 41.

The clown blocking piece is slidably arranged on the handle 41, and when the handle 41 moves rightwards, the clown blocking piece is not moved; after the handle 41 is reset, because a movable range caused by mutual movement exists between the handle 41 and the lifting rod 3 and other vertical rods of the door sill 2, the clown film plays a role of blocking a vacant position formed in the movable range, so that when the handle 41 moves, the hand of a user can be jammed in the movable range to cause hand clamping.

The safety door sill with the indicating function has the advantages that the opening and closing state of the door sill can be indicated, and the door sill can be automatically closed.

The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.

Claims (10)

1. A security door sill having indicating means, comprising: the door handle mechanism comprises a door frame mechanism, a door fence capable of sealing the door frame mechanism and a door handle mechanism; the door frame mechanism is provided with an indicating piece for observing the opening and closing state of the door fence; the end part of the indicating piece is abutted against the door handle mechanism; the door frame mechanism is also provided with a rotating shaft sleeve; a rotating shaft is arranged at the upper rotating end of the door sill; the rotating shaft sleeve is sleeved at the end part of the rotating shaft; the lower rotating end of the door sill is hinged with the door frame mechanism; the door handle mechanism is slidably arranged on the door rail; the door handle mechanism is detachably connected with the door frame mechanism.

2. The safety door sill with indicating function of claim 1, characterized in that a first indicating block for indicating that the door sill is in an open state and a second indicating block for indicating that the door sill is in a hung-closed state are arranged on the indicating member.

3. The indicating safety door sill according to claim 1, wherein a projection is provided on said shaft; a guide groove for the lug to slide is arranged on the rotating shaft sleeve; the guide groove is provided with a first positioning groove and a second positioning groove which are correspondingly matched with the lug; under the condition that the lug is positioned in the first positioning groove, the door sill is in a closed state; and under the condition that the lug is positioned in the second positioning groove, the door sill is in an opening state.

4. The indicating safety door sill according to claim 1, wherein a lifting rod for locking the door sill to the door frame mechanism is provided on the door sill; one end of the lifting rod penetrates through the door fence and then is slidably arranged on the door handle mechanism, and the other end of the lifting rod penetrates through the door fence and then is detachably connected with the door frame mechanism.

5. The indicating security door sill of claim 4, wherein said door frame mechanism comprises: the door frame, fixed sleeve, and several door frame fixed assemblies; the rotating shaft sleeve is arranged on the door frame; the fixed sleeve is arranged on the door frame; the door handle mechanism is detachably connected with the fixed sleeve; the indicator is rotatably arranged in the fixed sleeve; the fixing sleeve is provided with an indicating hole correspondingly matched with the indicating piece; the plurality of door frame fixing components are all arranged on the door frame; the door frame is hinged with the lower rotating end of the door sill; the other end of the lifting rod passes through the door sill and is detachably connected with the door frame.

6. The indicating security door sill of claim 5, wherein said door frame securing assembly comprises: the adjusting screw rods are used for fixing the door frame on the walls on two sides; the adjusting screw rod is slidably arranged on the door frame; the adjusting nut is in threaded connection with the adjusting screw rod.

7. The indicating safety door fence of claim 5, wherein a lower fixing sleeve of the lifting rod is arranged on the door frame and is positioned right below the lifting rod; the other end of the lifting rod penetrates through the door sill and then is detachably connected with the lower fixed sleeve of the lifting rod.

8. The indicating security door sill of claim 5, wherein said door handle mechanism comprises: the handle, the elastic buckle, the key and a reset spring for resetting the pushed elastic buckle; the handle is arranged on the door sill in a sliding manner; one end of the lifting rod penetrates through the door sill and then can be arranged on the handle in a sliding mode; one end of the elastic buckle is slidably arranged in the handle, and the other end of the elastic buckle is detachably connected with the fixed sleeve; the end part of the indicating piece is abutted against the elastic buckle; the key is arranged on the handle in a sliding manner; the end part of the key is fixedly connected with the elastic buckle; one end of the reset spring is fixedly connected with the elastic buckle, and the other end of the reset spring is fixedly connected with the handle.

9. The indicating safety door fence of claim 8, wherein a handle ramp for pushing the lifting bar is provided on the handle; and one end of the lifting rod is provided with a lifting rod slope correspondingly matched with the handle slope.

10. The indicating safety door fence as claimed in claim 8, wherein said handle is provided with a clown for protecting the hands.

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