CN113027301A - Safety door device for building - Google Patents

Abstract

The invention relates to the technical field of building door bodies, in particular to a safety door device for a building, which comprises a base, a door frame, a door body, a doorsill, a first clutch connecting structure and a second clutch connecting structure, wherein the first clutch connecting structure is arranged on the base; the door body and the doorsill are of two-half structures; the first half doorsill is connected with the first side of the door frame through a first rotating shaft, and the second half doorsill is connected with the second side of the door frame through a second rotating shaft; the first clutch connection structure is used for connecting or separating the first half door body and the first half threshold, and the first half door body can drive the first half threshold to be synchronously opened and closed when the first half door body is connected with the first half threshold; the second clutch connection structure is used for connecting or separating the second half door body and the second half threshold, and the second half door body can drive the second half threshold to be synchronously opened and closed when the second half door body is connected with the second half threshold. According to the technical scheme of the invention, the service life of the threshold can be prolonged on the basis of improving the wartime installation efficiency of the threshold.

Description

Safety door device for building

Technical Field

The invention relates to the technical field of building door bodies, in particular to a safety door device for buildings.

Background

The civil air defense door is a door at the entrance and exit of the civil protection project, is more clearly classified, and has a movable threshold civil air defense door and the like. The movable doorsill is characterized in that the doorsill is not installed at ordinary times, the ground is flat, personnel and vehicles can conveniently pass through the doorsill, the doorsill is installed rapidly in the process of imminent war so as to meet the requirements of protection and sealing functions, the conversion of the peacetime function is rapidly realized, and the door is suitable for entrances and exits of civil air defense projects such as underground markets, hospitals, warehouses, underground parking garages and the like which are combined in peacetime war.

As shown in fig. 1, the prior art provides a safety door device for buildings, which includes a base 1, a door frame 2 installed on the base 1, and a door body 4 installed on the door frame 2 through a rotation shaft 3, the base 1 is further provided with an installation groove 6, a L-shaped baffle 7 is rotatably connected to a side wall of the installation groove 6, a driving block 10 is further installed in the installation groove 6, and the rotation shaft 3 of the door body 4 is connected to the driving block 10 through a transmission mechanism so as to drive the L-shaped baffle 7 to rotate through the driving block 10. When the door body 4 is opened, the door body 4 drives the L-shaped baffle 7 to retract into the mounting groove 6, so that the door opening is avoided, and the door is convenient to pass; when the door body 4 is closed, the door body 4 drives one side plate of the L-shaped baffle 7 to extend out of the mounting groove 6, so that the doorsill can block the passing.

The safety door device for buildings at least has the following defects: for the civil air defense door, the doorsill only plays a role in wartime, and does not need to be installed at ordinary times so as to facilitate the passing of personnel and vehicles. The threshold is linked with the door body 4, and the threshold moves synchronously with the opening and closing of the door body 4 at ordinary times, so that the installation time of the threshold in wartime is reduced, but the threshold is opened and closed too frequently and is easy to damage, and improvement is urgently needed to the situation.

Disclosure of Invention

In view of this, the present invention provides a safety door device for buildings, which mainly solves the technical problems that: how to increase the life of threshold on the basis of improving threshold efficiency of installing in wartime.

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

the embodiment of the invention provides a safety door device for a building, which comprises a base, a door frame, a door body, a door threshold, a first clutch connecting structure and a second clutch connecting structure, wherein the first clutch connecting structure is arranged on the base; the door frame is mounted on the base; the door frame is provided with a first side and a second side which are opposite to each other along the width direction;

the door body is of a two-half structure and comprises a first half door body and a second half door body which can be opened and closed relatively, the first half door body is rotatably connected with the first side of the door frame, and the second half door body is rotatably connected with the second side of the door frame; the doorsill is of a two-half structure and comprises a first half doorsill and a second half doorsill which can be opened and closed relatively, the first half doorsill is connected with the first side of the door frame through the first rotating shaft, and the second half doorsill is connected with the second side of the door frame through the second rotating shaft; the first clutch connection structure is used for connecting or separating the first half door body and the first half threshold, and the first half door body can drive the first half threshold to be synchronously opened and closed when the first half door body is connected with the first half threshold; the second clutch connection structure is used for connecting or separating the second half door body and the second half threshold, and the second half door body can drive the second half threshold to be synchronously opened and closed when the second half door body is connected with the second half threshold;

the first clutch connecting structure comprises a clutch structure and a transmission structure, the transmission structure is used for being connected with the first half doorsill, and the clutch structure is used for connecting or separating the transmission structure and the first half door body;

the transmission structure comprises a worm wheel and a worm which is rotatably arranged, and the worm wheel is meshed with the worm; the transmission structure is connected with the clutch structure through a worm, and the first half door body is used for driving the worm to synchronously rotate through the clutch structure;

the first half threshold and the first rotating shaft are fixed in the circumferential direction, and the worm wheel is connected with the first rotating shaft so as to drive the first half threshold to rotate through the first rotating shaft.

Optionally, the clutch structure includes a rotating block and an insertion slot, one of the rotating block and the insertion slot is arranged on the worm, and the other is arranged on the rotating shaft of the first half-door body; the rotating block is used for being matched with the slot in an inserting mode so as to connect or separate the worm and the rotating shaft of the first half door body.

Optionally, the worm is coaxial with the rotating shaft of the first half door body.

Optionally, the rotating block is arranged on a component, the component is a rotating shaft of a worm or a first half door body, an accommodating groove is further formed in one end of the component, and the rotating block extends out of the accommodating groove when being rotated into the slot and is accommodated in the accommodating groove when being rotated out of the slot.

Optionally, the number of the turning blocks and the number of the slots are equal, more than two turning blocks and more than two slots are arranged in a one-to-one correspondence manner.

By means of the technical scheme, the safety door device for the building at least has the following beneficial effects:

1. the first clutch connecting structure is matched with the second clutch connecting structure, so that the first half threshold and the second half threshold can be disconnected with corresponding door bodies at ordinary times and are kept in an open state, and people and vehicles can conveniently pass through the door body; the doorsill can be quickly connected with the corresponding door body in wartime and synchronously opened and closed along with the door body, so that the doorsill is installed at ordinary times, special installation is not needed in wartime, and only the doorsill is connected with the door body through the corresponding clutch connection structure; in addition, the doorsill does not move along with the door body at ordinary times, so that the abrasion is small, and the service life is long;

2. the opening and closing angle of the first half threshold and the second half threshold can be consistent with the opening and closing angle of the door body, so that the first half threshold and the second half threshold can play a certain protection role when opened at a small angle under the condition of meeting the passing condition, and enemy assault during battle is prevented;

3. the first half threshold and the second half threshold can be turned to the outer side of the threshold when being closed, but cannot be turned to the inner side of the threshold, so that the threshold not only can keep the protection effect on the outside, but also can facilitate vehicles in a hospital to leave a doorway.

The foregoing description is only an overview of the technical solutions of the present invention, and in order to make the technical solutions of the present invention more clearly understood and to implement them in accordance with the contents of the description, the following detailed description is given with reference to the preferred embodiments of the present invention and the accompanying drawings.

Drawings

Figure 1 is a schematic view of a safety door assembly for construction in accordance with the prior art;

fig. 2 is a front view of a safety door apparatus for construction according to an embodiment of the present invention, in which a door body and a threshold are closed;

fig. 3 is a rear view of a safety door device for construction according to an embodiment of the present invention when a door body is closed;

fig. 4 is a schematic partial structural view of a safety door device for buildings according to an embodiment of the present invention when both a door body and a threshold are closed;

FIG. 5 is an enlarged schematic view at A in FIG. 4;

fig. 6 is a schematic structural view of a door sill of a safety door device for a building when retracted into an accommodating groove;

fig. 7 is a schematic structural view of the safety door device for construction when the door body and the threshold are both half-opened;

fig. 8 is a schematic structural view of the safety door device for construction in which a door body is opened and a threshold is closed;

fig. 9 is a schematic structural view of the safety door device for buildings when the door body is opened and the threshold is turned over into the groove;

FIG. 10 is an exploded view of the first half sill of the architectural safety door system being inverted into the cavity and the drive mechanism;

fig. 11 is a partial structural schematic view of the first half door body of the safety door device for construction when the first half doorsill is closed;

FIG. 12 is an enlarged schematic view at B in FIG. 11;

fig. 13 is a partial structural schematic view of the first half door body of the safety door device for buildings when the first half doorsill is opened and turned into the groove;

fig. 14 is an enlarged schematic view at C in fig. 13.

Reference numerals: 1. a door frame; 2. a base; 5. a cover plate; 6. a first flexible mat; 7. a worm; 8. a worm gear; 9. a first rotating shaft; 10. a cam; 11. rotating the block; 12. a first transmission block; 13. a second transmission block; 14. a movable locking and fixing part; 15. a third elastic member; 16. a second elastic member; 17. a first elastic member; 18. a stop block; 19. a first connecting member; 21. a groove; 31. a first half-door body; 32. a second half door body; 41. a first half threshold; 42. a second half threshold; 71. a containing groove; 101. a first accommodating groove; 102. a doorway; 181. positioning holes; 191. another elastic member; 192. a second flexible mat; 310. a slot; 311. a rotating shaft of the first half door body; 411. a first transmission shaft.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is 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 at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 2 and 3, an embodiment of the present invention provides a safety door device for buildings, which includes a base 2, a door frame 1, a door body, a door sill, a first clutch connection structure, and a second clutch connection structure. The door frame 1 is installed on the base 2, and the door frame can be an integrated structure and is fixed on the base 2 through screws. The door frame 1 has a first side and a second side opposite to each other in the width direction.

The door body has a two-half structure and includes a first door body 31 and a second door body 32. The first half door body 31 is rotatably connected to the first side of the doorframe 1, and the second half door body 32 is rotatably connected to the second side of the doorframe 1. Preferably, both the first half door body 31 and the second half door body 32 are connected to the doorframe 1 through a rotating shaft to rotate relative to the doorframe 1. The first half door body 31 and the second half door body 32 can be opened and closed relatively in the rotating process.

The aforementioned rocker is also of a two-half structure, and includes a first half rocker 41 and a second half rocker 42, respectively. As shown in fig. 4, the first half threshold 41 is connected to the first side of the door frame 1 through the first rotating shaft 9, and the second half threshold 42 is connected to the second side of the door frame 1 through the second rotating shaft. The first half threshold 41 and the second half threshold 42 can be opened and closed relatively in the rotating process, and a complete threshold (as shown in fig. 2) is formed when the first half threshold 41 and the second half threshold 42 are closed relatively, so that the traffic is blocked, and the wartime protection function is realized. When the first half threshold 41 and the second half threshold 42 are opened relatively (as shown in fig. 6), the door 102 can be opened, which is convenient for people and vehicles to pass through.

The first clutch connection structure is used for connecting or separating the first half door body 31 and the first half threshold 41, and when the first half door body 31 and the first half threshold 41 are connected, the first half door body 31 can drive the first half threshold 41 to open and close synchronously. The second clutch connection structure is used for connecting or separating the second half door body 32 and the second half threshold 42, and when the second half door body 32 is connected with the second half threshold 42, the second half door body 32 can drive the second half threshold 42 to open and close synchronously.

In the above example, the first clutch connecting structure and the second clutch connecting structure are matched, so that both the first half threshold 41 and the second half threshold 42 can be disconnected from the corresponding door body at ordinary times and are kept in an open state, and people and vehicles can conveniently pass through the door body; the doorsill can be quickly connected with the corresponding door body in wartime and synchronously opened and closed along with the door body, so that the doorsill is installed at ordinary times, special installation is not needed in wartime, and only the doorsill is connected with the door body through the corresponding clutch connection structure; in addition, the doorsill does not move along with the door body at ordinary times, so that the abrasion is small, and the service life is long.

The first clutch connection structure and the second clutch connection structure may have the same structure or different structures, and in order to save cost, it is preferable that the first clutch connection structure and the second clutch connection structure have the same structure. The specific design of the second clutch connection structure can be inferred by those skilled in the art from the description of the first clutch connection structure, so that the specific description of the design of the second clutch connection structure is not provided herein. The design of the first clutch connection structure will be described in detail below.

In a specific application example, the aforementioned first clutch connection structure may include a clutch structure and a transmission structure. The transmission structure is used for being connected with the first half threshold 41, and the clutch structure is used for connecting or separating the transmission structure and the first half door body 31. When the clutch structure is connected with the transmission structure and the first half door body 31, the first half door body 31 is connected with the first half threshold 41 sequentially through the clutch structure and the transmission structure, so that the first half door body 31 can drive the first half threshold 41 to open and close synchronously.

In order to realize the function of the transmission structure, as shown in fig. 4, the transmission structure may include a worm wheel 8 and a worm 7 rotatably disposed, and the worm 7 may be disposed on the base 2 or the doorframe 1. The transmission structure is connected with the clutch structure through the worm 7, and the first half door body 31 is used for driving the worm 7 to synchronously rotate through the clutch structure. Wherein, the worm 7 is meshed with the worm wheel 8, and the worm 7 can drive the worm wheel 8 to synchronously rotate when being driven to rotate. The first half threshold 41 is circumferentially fixed to the first rotating shaft 9, and the worm wheel 8 is connected to the first rotating shaft 9 to drive the first half threshold 41 to rotate through the first rotating shaft 9. Preferably, the worm wheel 8 can be fixedly fitted on the first rotating shaft 9 by means of a key. In this example, when the clutch structure connects the first half-door 31 and the worm 7, the first half-door 31 can drive the worm 7 to rotate synchronously, the worm 7 drives the worm wheel 8 to rotate, and the worm wheel 8 drives the first half-threshold 41 to rotate through the first rotating shaft 9, so as to realize synchronous opening and closing with the first half-door 31. Specifically, when the first half door body 31 is opened, the first half doorsill 41 is opened synchronously; when the first half door body 31 is closed, the first half rocker 41 is also closed synchronously.

In the above example, as shown in fig. 7, when both the first half door body 31 and the second half door body 32 are partially opened, both the first half rocker 41 and the second half rocker 42 are also partially opened in synchronization. The first half door body 31 and the second half door body 32 can be opened at a proper angle according to the actual entering and exiting conditions, for example, when only a single person passes through, the first half door body 31 and the second half door body 32 can be opened with a narrow slit only from the middle; when the large vehicle passes through, the first and second door halves 31 and 32 are all opened. Because the first half threshold 41 and the second half threshold 42 are synchronous with the corresponding door bodies, when the two door bodies are opened at a small angle, the first half threshold 41 and the second half threshold 42 can also be opened at a small angle synchronously, so that a certain protection function can be kept under the condition that personnel and vehicles pass.

In the above example, since the opening and closing angles of the first half-threshold 41 and the second half-threshold 42 can be adjusted according to the actual traffic situation, the protection performance in the battle is better, and the enemy can be prevented from assaulting.

In a specific application example, the worm 7 and the rotating shaft 311 of the first half-door 31 may be arranged coaxially, so that the connecting space between the worm 7 and the first half-door 31 may be saved.

In order to realize the function of the clutch structure, the first half door body 31 can drive the worm 7 to rotate synchronously through the clutch structure, as shown in fig. 5, the clutch structure may include a rotating block 11 and a slot 310, one of the rotating block 11 and the slot 310 is disposed on the worm 7, and the other is disposed on a rotating shaft 311 of the first half door body 31. The rotating block 11 is used for being in inserting fit with the slot 310 so as to connect or separate the worm 7 and the rotating shaft 311 of the first half door body 31. Specifically, when the rotating block 11 rotates into the slot 310, the rotating block 11 is inserted into the slot 310 and is clamped with the slot 310, and at this time, the rotating shaft 311 of the first half-door body 31 is fixedly connected with the worm 7 in the circumferential direction through the rotating block 11, so that the rotating shaft 311 of the first half-door body 31 can drive the worm 7 to rotate synchronously; when the rotating block 11 rotates out of the slot 310, the rotating block 11 is disconnected from the slot 310, at this time, the rotating shaft 311 of the first half-door body 31 is separated from the worm 7, and the worm 7 cannot rotate along with the first half-door body 31.

Further, the rotating block 11 may be disposed on a component, which is the worm 7 or the rotating shaft 311 of the first door body 31. The turning block 11 is connected to the member through a turning shaft to turn with respect to the member. As shown in fig. 5, one end of the component may further be provided with an accommodating groove 71, and the rotating block 11 is configured to extend out of the accommodating groove 71 when being rotated into the accommodating groove 310, and to be accommodated in the accommodating groove 71 when being rotated out of the accommodating groove 310. In this example, when the rotating shaft 311 of the first half-door body 31 is separated from the worm 7, the rotating block 11 rotates into the accommodating groove 71, so that the accommodating groove 71 can protect the rotating block 11, thereby prolonging the service life of the rotating block 11.

In a specific application example, the number of the rotating blocks 11 and the slots 310 may be equal, and two or more rotating blocks and slots 310 are arranged in a one-to-one correspondence manner, so that the connection stability between the worm 7 and the rotating shaft 311 of the first half door body 31 can be improved. Preferably, the rotating blocks 11 can be uniformly distributed in a circular shape to reduce stress concentration.

Further, as shown in fig. 7, when the first half-threshold 41 and the second half-threshold 42 are closed relatively, the sides of the two parts departing from the respective rotating ends can be relatively close to each other, so that the first half-threshold 41 and the second half-threshold 42 can be opened and closed from the middle, and the opening and closing angles of the first half-threshold 41 and the second half-threshold 42 can be conveniently controlled. Specifically, both the first half rocker 41 and the second half rocker 42 may be partially opened or fully opened depending on the actual situation.

Preferably, the rotation axes of the first half-rocker 41 and the second half-rocker 42 are parallel to the center line of the door opening 102, so that the first half-rocker 41 and the second half-rocker 42 can rotate in a vertical plane, and thus, the space in the height direction can be fully utilized, and the interference to the passage of people or vehicles in the horizontal direction can be reduced.

As shown in fig. 6, the first side of the door frame 1 may be provided with a first receiving groove 101, and the first half-threshold 41 is configured to rotate into the first receiving groove 101 when being opened, so as to be protected by the first receiving groove 101, and the appearance of the whole door body is more beautiful. Similarly, a second receiving groove may be formed in the second side of the door frame 1, and the second half-threshold 42 is configured to rotate into the second receiving groove when being opened, so as to be protected by the second receiving groove, and make the appearance of the whole door body more beautiful.

As shown in fig. 2, the first flexible pad 6 may be disposed on both sides of the first half-threshold 41 and the second half-threshold 42 away from the respective rotating ends, so as to abut against each other through the first flexible pad 6 when the first half-threshold 41 and the second half-threshold 42 are relatively closed, thereby reducing a gap when the first half-threshold 41 and the second half-threshold 42 are relatively closed, and improving the sealing performance when the thresholds are closed. Wherein, the first flexible cushion can be a rubber cushion or the like.

As shown in fig. 9, both the first half threshold 41 and the second half threshold 42 can be turned to the outside of the doorway 102 when they are relatively closed, and the door frame 1 is provided with a stopping structure for stopping both the first half threshold 41 and the second threshold from being turned to the inside of the doorway 102 when they are relatively closed. The stop structure may be a stop surface provided on the doorframe 1, and the doorframe 1 is stopped by the closed first half rocker 41 and second half rocker 42 through the stop surface. Here, it should be noted that: the "outer side of the doorway 102" in this example refers to the outer side of the door, and the "inner side of the doorway 102" refers to the inner side of the door. For example, when the door of the invention is installed at the entrance of a hospital, both the first half door sill 41 and the second half door sill 42 can be turned over to the outside of the entrance of the hospital when they are relatively closed, so that the vehicles inside the hospital can conveniently leave the hospital. The first half threshold 41 and the second half threshold 42 cannot be turned towards the inner side of the hospital entrance under the blocking of the blocking structure when the first half threshold and the second half threshold are relatively closed, so that the outer side of the hospital entrance is protected, and an enemy can be prevented from assaulting.

In the above example, in the case of a wartime, both the first half-threshold 41 and the second half-threshold 42 may be disconnected from the first half-door body 31 and the second half-door body 32 and kept in the closed state, so as to play a role in protection in both the opened and closed states of the door bodies and prevent an enemy from assaulting. In addition, since both the first half door sill 41 and the second half door sill 42 can only be turned to the outside of the doorway 102 when closed, the door sills can not only maintain the protection function to the outside, but also facilitate the vehicles inside the hospital to leave the doorway 102.

In order to realize the function that both the first half threshold 41 and the second half threshold 42 can be turned to the outside of the doorway 102 when they are closed relatively, as shown in fig. 11, a first connecting member 19 may be circumferentially fixed to the first rotating shaft 9, and the first connecting member 19 may be connected to the first rotating shaft 9 by a key. The first half doorsill 41 is connected to the first connecting member 19 through a first transmission shaft 411 (as shown in fig. 10) so as to be turned toward the outside of the doorway 102 through the first transmission shaft 411 when closed. Through the matching of the first rotating shaft 9 and the first transmission shaft 411, the first half threshold 41 can be opened and closed relative to the threshold and can also be turned over towards the outer side of the doorway 102 when being closed.

Similarly, a second connecting member may be circumferentially fixed to the second rotating shaft, and the second connecting member may be connected to the second rotating shaft by a key. The second half-sill 42 is connected to the second link by a second drive shaft to be flipped over toward the outside of the doorway 102 by the second drive shaft when closed. Through the cooperation of the second rotating shaft and the second transmission shaft, the second half-threshold 42 can be opened and closed relative to the threshold and can be turned over to the outer side of the doorway 102 when closed.

Further, the safety door apparatus for buildings according to the present invention may further include a first structure and a second structure, as shown in fig. 9, the first structure makes the first half threshold 41 flush with the upper surface of the base 2 when it is turned to the first set position; the second structure enables the second half threshold 42 to be flush with the upper surface of the base 2 when being turned to the second set position. In particular, when in use, the base 2 is arranged in the ground, and the upper surface of the base is flush with the ground surface. The first structure and the second structure are matched, so that the first half threshold 41 and the second half threshold 42 can be flush with the upper surface of the base 2 and the ground surface when being turned to the set positions, and the vehicle can pass through the base.

The first structure and the second structure may be the same or different, and in order to save cost, it is preferable that the first structure and the second structure are the same. The specific design of the second structure will be inferred by those skilled in the art from the description of the first structure, and thus the specific description of the design of the second structure will not be given here. The design of the first structure will be described in detail below.

As shown in fig. 8, the aforementioned first structure may include the cover plate 5, the stopper mechanism, and the groove 21 provided on the base 2. The cover plate 5 is a movable cover plate, as shown in fig. 11, the cover plate 5 is used for covering the opening of the groove 21 and is stopped by the stopping mechanism below the cover plate 5, so that the opening of the groove 21 is shielded by the cover plate 5, so that people or vehicles can be prevented from being trapped in the groove 21 during passing, and the appearance of the invention is more beautiful. The first half-threshold 41 is configured to drive the stopping mechanism to release the stopping of the cover plate 5 from the lower side when the first half-threshold 41 is turned from the closed position to the first position, as shown in fig. 13, the first half-threshold 41 is further configured to press the cover plate 5 into the recess 21 when the first half-threshold is turned from the first position to the first setting position, and the cover plate 5 stops from the lower side, so that the first half-threshold 41 covers the opening of the recess 21; wherein the first position is located between the closed position of the first half door sill 41 and the first set position. Here, it should be noted that: the closed position of the first half rocker 41 in this example is a position at which both the first half rocker 41 and the second half rocker 42 are relatively closed. When the first half-threshold 41 and the second half-threshold 42 are closed relatively and turned to the outside of the doorway 102, the first half-threshold 41 is turned from the closed position to the first position, and then turned from the first position to the first setting position, for example, in a specific application example, the first half-threshold 41 may be turned from the closed position by 10 degrees to the first position, and then turned again by 80 degrees to the first setting position.

In the above example, since the cover 5 is stopped from below by the stopping mechanism when covering the opening of the groove 21, the first half-threshold 41 may be turned over by a slight angle to release the stop of the cover 5, and then the cover 5 may be pressed to retract the cover 5 into the groove 21 when continuing to turn over. When the first half doorsill 41 is turned to the first set position flush with the ground surface, the first half doorsill 41 is stopped by the cover plate 5 from below, so that the first half doorsill 41 can be kept stable at the current position, and the vehicle can conveniently pass through the inner side of the doorway 102.

In order to realize the function of the stopping mechanism, the stopping mechanism can stop the cover plate 5 from below and can be driven by the first half threshold 41 to release the stopping of the cover plate 5, and as shown in fig. 10, the stopping mechanism can comprise a stopping block 18, a first elastic member 17, a second elastic member 16 and a movable locking member 14. The stop block 18 is in sliding fit with the cover plate 5 through an inclined surface, so that the stop block 18 can be driven to push the cover plate 5 to move through the inclined surface, and similarly, the cover plate 5 can be driven to push the stop block 18 to move through the inclined surface. As shown in fig. 12, the first elastic member 17 is used to provide a force for moving the stopper 18 to the first initial position, so that the stopper 18 stops the lower portion of the cover plate 5. The second elastic element 16 is used for providing a force for moving the movable locking member 14 to the second initial position, so that the movable locking member 14 locks the stop block 18 located at the first initial position. The first half threshold 41 is used for driving the movable locking piece 14 to move when the movable locking piece 14 is overturned from the closed position to the first position, so that the movable locking piece 14 unlocks the stop block 18. The first half-threshold 41 is also used for pushing the cover plate 5 when the first half-threshold is turned from the first position to the first set position, so that the cover plate 5 moves into the groove 21.

In the above example, the direction of movement of both the stopper block 18 and the cover plate 5 may be made perpendicular by the cooperation of the slopes. As shown in fig. 11 and 12, when the cover plate 5 covers the opening of the groove 21, the stop block 18 is driven by the first elastic element 17 to move to a first initial position, in which the stop block 18 is locked by the movable locking element 14 and stops the cover plate 5 from below. When the first half threshold 41 is turned over from the closed position to the first position, the first half threshold 41 drives the movable locking piece 14 to unlock the stop block 18; as shown in fig. 13 and 14, when the first half-threshold 41 is further turned from the first position, the first half-threshold 41 presses the cover 5 to retract the cover 5 into the recess 21, and at the same time, the stop block 18 is pushed by the cover 5 to exit from the stop position. When the first half threshold 41 returns to the closed position from the first set position, the first elastic piece 17 drives the stop block 18 to move to the first initial position, and the stop block 18 pushes the cover plate 5 to move to a position covering the opening of the groove 21 through the inclined surface; the second elastic element 16 then drives the movable locking element 14 to move, so that the movable locking element 14 locks the stop block 18, and the stop block 18 stops the cover plate 5 from below at a position where the cover plate currently covers the opening of the groove 21.

In order to save labor, it is preferable that the safety door apparatus for buildings according to the present invention further includes another elastic member 191, as shown in fig. 10, the other elastic member 191 may be a spring or flexible plastic, etc., and the other elastic member 191 is used to provide a force for returning the first half threshold 41 to the closed position. Preferably, the other elastic member 191 may be a torsion spring, and the torsion spring is sleeved on the first transmission shaft 411.

In order to achieve the above-mentioned locking or unlocking function of the movable locking member 14 to the stop block 18, as shown in fig. 10, the stop block 18 may be provided with a positioning hole 181, and the movable locking member 14 has an insertion portion which is inserted into and matched with the positioning hole 181 so as to lock or unlock the stop block 18.

In order to achieve the aforementioned function of driving the movable locking member 14 to unlock the stopper 18 when the first half threshold 41 is turned from the closed position to the first position, as shown in fig. 10, the safety door device for buildings according to the present invention may further include a cam 10, a first driving block 12, a second driving block 13, and a third elastic member 15. The first transmission block 12 is matched with the second transmission block 13 through the first inclined surface, and the movement directions of the first transmission block 12 and the second transmission block 13 can be vertical. The second transmission block 13 is matched with the movable locking piece 14 through a second inclined surface, and the moving directions of the second transmission block 13 and the movable locking piece 14 can also be vertical. The cam 10 is fixedly sleeved on the first transmission shaft 411, for example, the cam 10 may be fixed on the first transmission shaft 411 by a key. The third elastic member 15 is used to provide a force for moving the first transmission block 12 to the third initial position. The first half threshold 41 is used for driving the cam 10 to push against the first transmission block 12 when the first half threshold is turned from the closed position to the first position, so that the first transmission block 12 drives the movable locking piece 14 to unlock the stop block 18 through the second transmission block 13.

In the above example, the cam 10, the first transmission block 12, the second transmission block 13 and the movable locking member 14 cooperate to make the movable locking member 14 pull out from the positioning hole 181 on the stop block 18 when the first half-threshold 41 is turned from the closed position to the first position, so as to unlock the stop block 18. The first elastic member 17, the second elastic member 16 and the third elastic member 15 are engaged, so that the movable locking member 14 can be driven to be inserted into the positioning hole 181 of the stop block 18 again when the first rocker half 41 is restored to the closed position.

As shown in fig. 11, a second flexible pad 192 may be provided on one side of the cover plate 5, and the second flexible pad 192 may be adhered to one side of the cover plate 5. When the cover 5 covers the opening of the groove 21, the cover 5 abuts against the first half threshold 41 located at the closed position through the second flexible pad 192, so that the gap on the base 2 can be reduced, and the appearance of the architectural safety door apparatus of the present invention is more beautiful.

The working principle and preferred embodiments of the present invention are described below.

The invention relates to a safety door device for buildings, wherein the door body and the threshold of the safety door device are both of two-half type structures, the first half door body 31 is connected with the first half threshold 41 through a first clutch connection structure, and the second half door body 32 is connected with the second half threshold 42 through a second clutch connection structure. When the first clutch connection structure and the second clutch connection structure are separated, the first half threshold 41 and the second half threshold 42 can be kept in an open state and cannot move along with the door body, so that the abrasion of the threshold under the non-wartime condition is reduced, and the service life of the threshold is prolonged.

When the first clutch connection structure and the second clutch connection structure are connected, the first half door body 31 and the second half door body 32 can drive the first half door sill 41 and the second half door sill 42 to be opened and closed synchronously, so that the opening and closing angles of the first half door sill 41 and the second half door sill 42 can be consistent with the opening and closing angle of the door body, and therefore the first half door sill 41 and the second half door sill 42 can play a certain protection role when being opened at a small angle under the condition that the door body is in a passing state, and an enemy can be prevented from assaulting in a battle.

The first half threshold 41 and the second half threshold 42 can be turned to the outer side of the threshold but not to the inner side of the threshold when closed, so that the threshold not only can keep the protection function to the outside, but also can facilitate the vehicles in the hospital to leave the doorway 102. When the first half threshold 41 and the second half threshold 42 are turned to the set positions, the first half threshold and the second half threshold can be kept flush with the ground surface, so that the vehicles inside can go out conveniently. When the vehicle goes out, the threshold can automatically rebound under the action of another elastic member 191 such as a torsion spring, so as to achieve the effect of saving labor.

Here, it should be noted that: in the case of no conflict, a person skilled in the art may combine the related technical features in the above examples according to actual situations to achieve corresponding technical effects, and details of various combining situations are not described herein.

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 invention may occur to those skilled in the art without departing from the principle of the invention, and are considered to be within the scope of the invention.

Claims (5)

1. A safety door device for buildings is characterized by comprising a base (2), a door frame (1), a door body, a door threshold, a first clutch connecting structure and a second clutch connecting structure; the door frame (1) is arranged on the base (2); the door frame (1) is provided with a first side and a second side which are opposite to each other along the width direction;

the door body is of a two-half structure and comprises a first half door body (31) and a second half door body (32) which can be opened and closed relatively, the first half door body (31) is rotatably connected with the first side of the door frame (1), and the second half door body (32) is rotatably connected with the second side of the door frame (1); the doorsill is of a two-half structure and comprises a first half doorsill (41) and a second half doorsill (42) which can be opened and closed relatively, the first half doorsill (41) is connected with the first side of the door frame (1) through the first rotating shaft (9), and the second half doorsill (42) is connected with the second side of the door frame (1) through the second rotating shaft; the first clutch connection structure is used for connecting or separating the first half door body (31) and the first half threshold (41), and the first half door body (31) can drive the first half threshold (41) to be synchronously opened and closed when the first half door body (31) is connected with the first half threshold (41); the second clutch connection structure is used for connecting or separating the second half door body (32) and the second half threshold (42), and the second half door body (32) can drive the second half threshold (42) to be synchronously opened and closed when the second half door body (32) is connected with the second half threshold (42);

the first clutch connecting structure comprises a clutch structure and a transmission structure, the transmission structure is used for being connected with a first half doorsill (41), and the clutch structure is used for connecting or separating the transmission structure and the first half door body (31);

the transmission structure comprises a worm wheel (8) and a worm (7) which is rotatably arranged, and the worm wheel (8) is meshed with the worm (7); the transmission structure is connected with the clutch structure through a worm (7), and the first half door body (31) is used for driving the worm (7) to synchronously rotate through the clutch structure;

the first half doorsill (41) is circumferentially fixed with the first rotating shaft (9), and the worm wheel (8) is used for being connected with the first rotating shaft (9) so as to drive the first half doorsill (41) to rotate through the first rotating shaft (9).

2. The safety door device for construction according to claim 1,

the clutch structure comprises a rotating block (11) and an inserting groove (310), one of the rotating block (11) and the inserting groove (310) is arranged on the worm (7), and the other is arranged on a rotating shaft (311) of the first half door body (31); the rotating block (11) is used for being in plug-in fit with the slot (310) so as to connect or separate the worm (7) and the rotating shaft (311) of the first half door body (31).

3. The safety door device for construction according to claim 2,

the worm (7) and a rotating shaft (311) of the first half door body (31) are arranged coaxially.

4. The safety door device for construction according to claim 2,

the rotating block (11) is arranged on a component, the component is a rotating shaft (311) of the worm (7) or the first half door body (31), an accommodating groove (71) is further formed in one end of the component, and the rotating block (11) stretches out of the accommodating groove (71) when being used for being rotated into the slot (310) and is accommodated in the accommodating groove (71) when being rotated out of the slot (310).

5. The construction safety door device according to any one of claims 2 to 4,

the number of the rotating blocks (11) and the number of the slots (310) are equal, more than two, and the rotating blocks and the slots are arranged in a one-to-one correspondence manner.

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