Two-way locking linkage execution device of a communication port protection air-tight door

Abstract

The utility model is suitable for the technical field of protective airtight door and provides a two -way locking linkage executing device of communicating port protective airtight door, include, door frame, protective door, the protective door symmetry hinged setting is in both ends of door frame, movable slot, the movable slot is set up in the middle part of protective door, center shaft, the center shaft is movably arranged in the middle part of movable slot, and the surface is provided with adjustment gear, elastic two -way plug -in structure, the elastic two -way plug -in structure sets up in the middle part of center shaft, rotating handle. Compared with prior art, the utility model has the beneficial effects that: in use, by setting elastic two -way plug -in structure in center shaft, then makes rotating handle not to press inwards when using force, then cannot rotate, and then avoids that someone rotates rotating handle by mistake, leads to protective door to open by mistake, leads to internal and external communication, influences the situation that the protective effect appears.

Description

Technical Field

[0001] This utility model belongs to the field of protective airtight door technology, and in particular relates to a bidirectional locking linkage execution device for a connecting port protective airtight door. Background Technology

[0002] A connecting port protective airtight door is a civil defense device installed on the protective airtight partition wall at the connecting port of two adjacent protective units, which has bidirectional force-bearing and bidirectional airtight functions; In daily life, protective airtight doors at connecting entrances are usually kept open to facilitate passage. However, protective airtight doors installed in special locations such as smoke exhaust and ventilation shafts need to be kept closed to block smoke and reduce the entry of toxic gases into evacuation routes during a fire, thus buying more time for people to escape. However, because traditional protective airtight doors can be opened by simply turning the handle on either side, people often mistakenly open protective airtight doors that should be kept closed, leaving them in an open state. This allows dense smoke to quickly spread throughout the evacuation route during a fire, threatening the lives of those evacuating.

[0003] Therefore, how to provide a two-way locking linkage actuator for a protective airtight door with a connecting port is a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] The purpose of this invention is to provide a bidirectional locking linkage actuator for a protective airtight door with a connecting port, which aims to solve the problems mentioned in the background art.

[0005] This utility model is implemented as follows: a bidirectional locking linkage actuator for a protective airtight door with a connecting port, comprising: Door frame; The protective door is symmetrically hinged at both ends of the door frame; A movable groove is provided in the middle of the protective door; A central shaft is movably disposed in the middle of a movable groove, and an adjusting gear is provided on its surface; A flexible bidirectional plug-in structure is provided, wherein the flexible bidirectional plug-in structure is located in the middle of the central axis; A rotating handle is provided on the front and rear sides of the door frame, and its inner end is connected to a flexible bidirectional plug-in structure.

[0006] Preferably, the upper and lower sides of the left and right ends of the inner cavity of the door frame are symmetrically provided with positioning holes, the side of the adjusting gear is provided with a two-way locking structure, which is movably connected with the positioning holes, and the bottom of the door frame is also provided with a lifting and sealing structure to movably seal the positioning holes at the bottom of the door frame. The lifting and blocking structure includes a lifting blocking plate and a third spring. The bottom of the door frame is provided with a lifting groove. The lifting blocking plate is slidably disposed inside the lifting groove and has protrusions arranged in an array in the middle, which are movably inserted into the positioning holes. The third spring is symmetrically disposed on both sides of the lifting groove and is fixedly connected to the outside of the lifting blocking plate.

[0007] Preferably, the elastic bidirectional plug-in structure includes a rotating handle and a first spring. The central shaft is hollow in the middle, and sliding sleeves are slidably arranged at both ends of the central shaft surface. The rotating handle is fixedly installed on the outer end of the central shaft. The first spring is symmetrically arranged inside the central shaft and fixedly connected to the middle of the two sliding sleeves. A locking unit is also provided in the movable groove so that the elastic bidirectional plug-in structure is always engaged with the adjusting gear to stop when it is not under force and contracted.

[0008] Preferably, the bidirectional locking structure includes a positioning rod and a first helical bevel gear. A second helical bevel gear is symmetrically arranged on both the front and rear sides of the lower end of the movable groove. An auxiliary switch is symmetrically arranged on both the front and rear sides of the door frame and is fixedly connected to the middle of the second helical bevel gear. The positioning rod is slidably arranged at both ends of the side of the adjusting gear, and is arranged oppositely, interlocking with the positioning holes on the upper and lower sides. A threaded groove is opened in the middle of the inner end of the positioning rod, and a transmission screw is placed therein. The first helical bevel gear is fixedly installed at the bottom of the transmission screw and is connected to the inner side of the second helical bevel gear.

[0009] Preferably, the locking unit includes a traction plate and a positioning plate. The positioning plate is fixedly installed in the middle of the movable groove, and a second spring is fixedly installed on its top. An anti-rotation tooth plate is fixedly installed on the top of the second spring and meshes with the bottom of the adjusting gear. The surface of the anti-rotation tooth plate is provided with slots. The traction plate is fixedly installed on the inner side of the sliding sleeve, and a positioning rod is fixedly installed on its bottom. The inner side of the positioning rod is provided with inserts that are movably inserted into the slots.

[0010] Preferably, the front insert is positioned outwards and the rear insert is positioned inwards, and the positions and number of the slots on the front and rear sides correspond to the positions and number of the inserts on the front and rear sides, respectively.

[0011] Preferably, the inserts on both the front and rear sides are inclined and arranged opposite to each other, and the cross-sectional shape of the slots on both the front and rear sides corresponds to the cross-sectional shape of the inserts.

[0012] Compared with the prior art, the beneficial effects of this utility model are: when in use, by setting an elastic bidirectional plug-in structure on the central axis, the rotating handle cannot be rotated unless it is pressed inward with force, thereby preventing someone from accidentally rotating the rotating handle, causing the protective door to be opened accidentally, resulting in communication between the inside and outside and affecting the protective effect. Meanwhile, by setting a lifting and sealing structure in the positioning hole at the bottom of the door frame, the lifting and sealing structure can be inserted and sealed at any time, thereby preventing foreign objects from entering the positioning hole and affecting the insertion effect between the lifting and sealing structure and the positioning hole, thus preventing the protective door from closing properly. Attached Figure Description

[0013] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:

[0014] Figure 1 A schematic diagram of the overall appearance structure of a bidirectional locking linkage actuator for a protective airtight door at a communication port, provided for an embodiment of this utility model; Figure 2 A front cross-sectional view of a bidirectional locking linkage actuator for a protective airtight door at a communication port, provided in an embodiment of this utility model; Figure 3 A schematic diagram of the bidirectional locking structure of a bidirectional locking linkage actuator for a protective airtight door at a communication port, provided for an embodiment of this utility model; Figure 4 A schematic diagram of the elastic bidirectional plug-in structure of a bidirectional locking linkage actuator for a connecting port protective airtight door provided in this embodiment of the utility model; Figure 5 A cross-sectional schematic diagram of the elastic bidirectional plug-in structure of a bidirectional locking linkage actuator for a connecting port protective airtight door provided in this embodiment of the utility model; Figure 6 A schematic front view cross-sectional view of the elastic bidirectional plug-in structure of a bidirectional locking linkage actuator for a protective airtight door at a communication port, provided in an embodiment of this utility model. Figure 7 Provided for the embodiments of this utility model Figure 2 A magnified structural diagram of part A.

[0015] In the diagram: 1-Door frame, 2-Protective door, 3-Modular groove, 4-Adjusting gear, 5-Positioning rod, 6-Transmission screw, 7-First bevel gear, 8-Second bevel gear, 9-Auxiliary switch, 10-Central shaft, 11-Sliding sleeve, 12-Traction plate, 13-Rotating handle, 14-Positioning rod, 15-Plug, 16-Anti-rotation toothed plate, 17-Slot, 18-First spring, 19-Positioning plate, 20-Second spring, 21-Positioning hole, 22-Lifting groove, 23-Lifting stop plate, 24-Third spring. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0018] like Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6 and Figure 7 The diagram shown is a structural schematic of a bidirectional locking linkage actuator for a protective airtight door at a communication port, according to an embodiment of the present invention, comprising: Door frame 1; Protective door 2 is symmetrically hinged at both ends of door frame 1; Movable slot 3 is located in the middle of protective door 2; The central shaft 10 is movably disposed in the middle of the movable groove 3, and an adjusting gear 4 is provided on its surface; A flexible bidirectional plug-in structure is provided, which is located in the middle of the central shaft 10. Rotary handle 13 is provided on the front and rear sides of the door frame 1, and its inner end is connected to the elastic bidirectional plug-in structure.

[0019] In this embodiment of the utility model, when in use, pressing the rotating handle 13 releases the stop function of the elastic bidirectional plug-in structure. Then, when rotating the rotating handle 13, the elastic bidirectional plug-in structure and the central shaft 10 can be rotated, releasing the locking effect between the protective door 2 and the door frame 1, so that the protective door 2 can be opened. By setting an elastic bidirectional plug-in structure on the central shaft 10, the rotating handle 13 cannot be rotated unless it is pressed inward with force. This prevents someone from accidentally rotating the rotating handle 13, which could cause the protective door 2 to open accidentally, resulting in communication between the inside and outside and affecting the protective effect.

[0020] like Figure 2 and Figure 7 As shown, in a preferred embodiment of the present invention, positioning holes 21 are symmetrically provided on the upper and lower sides of the left and right ends of the inner cavity of the door frame 1. The side of the adjusting gear 4 is provided with a two-way locking structure, which is movably connected to the positioning holes 21. The bottom of the door frame 1 is also provided with a lifting and sealing structure to movably seal the positioning holes 21 at the bottom of the door frame 1. The lifting and blocking structure includes a lifting blocking plate 23 and a third spring 24. The bottom of the door frame 1 is provided with a lifting groove 22. The lifting blocking plate 23 is slidably disposed inside the lifting groove 22 and has protrusions arranged in the middle array to be movably inserted into the positioning insertion hole 21. The third spring 24 is symmetrically disposed on both sides of the lifting groove 22 and is fixedly connected to the outside of the lifting blocking plate 23.

[0021] In this embodiment of the utility model, when the outer end of the positioning rod 5 is separated from the positioning hole 21 at the bottom of the door frame 1, the lifting plate 23 in the lifting groove 22 at the bottom of the positioning hole 21 at the bottom of the door frame 1 automatically rises under the elasticity of the third spring 24, thereby inserting into the positioning hole 21 at the bottom of the door frame 1 and sealing the positioning hole 21, thereby preventing the presence of foreign objects inside the positioning hole 21 from affecting the insertion effect of the positioning rod 5 and the positioning hole 21. By setting up a lifting and sealing structure, the lifting and sealing structure can be inserted and sealed to the positioning hole 21 at any time, thereby preventing foreign objects from entering the positioning hole 21 and affecting the insertion effect between the lifting and sealing structure and the positioning hole 21, thus preventing the protective door 2 from closing properly.

[0022] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, the elastic bidirectional plug-in structure includes a rotating handle 13 and a first spring 18. The central shaft 10 is hollow in the middle, and sliding sleeves 11 are slidably arranged at both ends of the surface of the central shaft 10. The rotating handle 13 is fixedly installed on the outer end of the central shaft 10. The first spring 18 is symmetrically arranged inside the central shaft 10 and is fixedly connected to the middle of the sliding sleeves 11 on both sides. A locking unit is also provided in the movable groove 3 so that the elastic bidirectional plug-in structure is always engaged with the adjusting gear 4 to stop when it is not under force and contracted.

[0023] In this embodiment of the utility model, when in use, pressing the rotating handle 13 on either side causes the rotating handle 13 on either side to move inward against the elasticity of the first spring 18 in the middle of the central shaft 10, thereby causing the sliding sleeve 11 in the middle of the rotating handle 13 to slide inward along both ends of the central shaft 10, thereby applying pressure to the locking unit, causing the locking unit to release the locking of the adjusting gear 4, thus facilitating the operator to open it quickly. By setting up a flexible bidirectional plug-in structure, the rotating handle 13 cannot be rotated unless it is pressed inward with force, thereby preventing someone from accidentally rotating the rotating handle 13, which could cause the protective door 2 to open accidentally, resulting in communication between the inside and outside and affecting the protective effect.

[0024] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment of this utility model, the bidirectional locking structure includes a positioning rod 5 and a first helical bevel gear 7. A second helical bevel gear 8 is symmetrically arranged on the front and rear sides of the lower end of the movable groove 3. An auxiliary switch 9 is symmetrically arranged on the front and rear sides of the door frame 1 and is fixedly connected to the middle of the second helical bevel gear 8. The positioning rod 5 is slidably arranged at both ends of the side of the adjusting gear 4 and is arranged oppositely, and is inserted into the positioning holes 21 on the upper and lower sides. A threaded groove is opened in the middle of the inner end of the positioning rod 5, and a transmission screw 6 is placed therein. The first helical bevel gear 7 is fixedly installed at the bottom of the transmission screw 6 and is connected to the inner side of the second helical bevel gear 8.

[0025] In this embodiment of the utility model, when the adjusting gear 4 rotates, it will drive the positioning rods 5, which are symmetrically arranged on the upper and lower sides of the movable groove 3, to move from the outside to the inside. This will cause the outer end of the positioning rod 5 to separate from the positioning hole 21 on the surface of the door frame 1. When the positioning rod 5 moves inward, the inner end of the positioning rod 5 will drive the transmission screw 6 to rotate through the threaded groove in its middle, which will then drive the first helical bevel gear 7 at its bottom to rotate synchronously. When the first helical bevel gear 7 rotates, it will drive the second helical bevel gears 8 on the front and rear sides to rotate synchronously, which will indirectly drive the angle of the auxiliary switch 9 connected to the outer end of the second helical bevel gear 8 to change synchronously with the movement of the positioning rod 5. By setting a two-way locking structure, when the rotating handle 13 drives the adjusting gear 4 to rotate, the two-way locking structure will retract and extend, thereby inserting into the door frame 1, thus achieving the effect of positioning and locking the protective door 2.

[0026] like Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, the locking unit includes a traction plate 12 and a positioning plate 19. The positioning plate 19 is fixedly installed in the middle of the movable groove 3, and a second spring 20 is fixedly installed on its top. An anti-rotation toothed plate 16 is fixedly installed on the top of the second spring 20, which meshes with the bottom of the adjusting gear 4. The surface of the anti-rotation toothed plate 16 is provided with slots 17. The traction plate 12 is fixedly installed on the inner side of the sliding sleeve 11, and a positioning rod 14 is fixedly installed on its bottom. Inserts 15 are arranged on the inner side of the positioning rod 14, which are movably inserted into the slots 17.

[0027] In this embodiment of the utility model, when in use, pressing the rotating handle 13 on either side causes the sliding sleeve 11 in the middle of the rotating handle 13 to slide inward along both ends of the central shaft 10, thereby driving the traction plate 12 to move inward. This causes the insert block 15 on the inner side of the positioning rod 14 at the bottom of the traction plate 12 to insert into the corresponding slot 17 on the surface of the anti-rotation tooth plate 16. This causes the anti-rotation tooth plate 16 to overcome the elasticity of the second spring 20 at the top of the positioning plate 19 and move downward. This causes the top of the anti-rotation tooth plate 16 to move away from the teeth of the adjusting gear 4, thereby allowing the adjusting gear 4 to rotate. By setting a locking unit, the gear will not separate from the adjusting gear 4 when it is not subjected to inward pressure, thus preventing the adjusting gear 4 from rotating. This prevents the bidirectional locking structure connected to the adjusting gear 4 from working and opening, further enhancing the effect of preventing accidental opening.

[0028] like Figure 4 , Figure 5 and Figure 6 As shown, in a preferred embodiment of the present invention, the front insert 15 is arranged outward, the rear insert 15 is arranged inward, and the position and number of the slots 17 on the front and rear sides correspond to the position and number of the inserts 15 on the front and rear sides, respectively.

[0029] In this embodiment of the utility model, when in use, by setting the front plug 15 outward and the rear plug 15 inward, the plugs 15 on the front and rear sides will not collide during insertion, thus preventing any impact on the insertion effect. The positions and numbers of the slots 17 on the front and rear sides correspond to the positions and numbers of the plugs 15 on the front and rear sides, thereby facilitating the insertion of the plugs 15 on the front and rear sides into the slots 17 on the front and rear sides.

[0030] like Figure 4 , Figure 5 As shown in the figure, in a preferred embodiment of the present invention, the front and rear insert blocks 15 are both inclined and opposite to each other, and the cross-sectional shape of the front and rear slots 17 corresponds to the cross-sectional shape of the insert blocks 15.

[0031] In this embodiment of the utility model, when in use, by setting the front and rear insert blocks 15 at an angle and opposite to each other, they can be inserted into the front and rear slots 17 from both sides, and the cross-sectional shape of the front and rear slots 17 corresponds to the cross-sectional shape of the insert block 15, so that the front and rear slots 17 are also set as inclined surfaces. When the insert block 15 enters, the front and rear slots 17 will be pressed and drive the anti-rotation tooth plate 16 to descend.

[0032] The above embodiments of this utility model provide a bidirectional locking linkage execution device for a protective airtight door with a connecting port. When in use, pressing the rotating handle 13 on either side causes the rotating handle 13 on either side to move inward against the elasticity of the first spring 18 in the middle of the central shaft 10, thereby causing the sliding sleeve 11 in the middle of the rotating handle 13 to slide inward along both ends of the central shaft 10. When the sliding sleeve 11 moves, it will simultaneously drive the traction plate 12 to move inward, thereby causing the insert block 15 on the inner side of the positioning rod 14 at the bottom of the traction plate 12 to insert into the corresponding slot 17 on the surface of the anti-rotation tooth plate 16. This causes the anti-rotation tooth plate 16 to overcome the elasticity of the second spring 20 at the top of the positioning plate 19 and move downward, thereby causing the top of the anti-rotation tooth plate 16 to move away from the teeth of the adjusting gear 4. This allows the adjusting gear 4 to rotate synchronously under the rotation of the rotating handle 13. When the adjusting gear 4 rotates, it will drive the positioning rods 5, which are symmetrically arranged on the upper and lower sides of the movable groove 3, to move from the outside to the inside, thereby causing the outer end of the positioning rod 5 to separate from the positioning hole 21 on the surface of the door frame 1. When the positioning rod 5 moves inward, the inner end of the positioning rod 5 will drive the transmission screw 6 to rotate through the threaded groove in its middle, which in turn drives the first helical bevel gear 7 at its bottom to rotate synchronously. When the first helical bevel gear 7 rotates, it will drive the second helical bevel gears 8 on the front and rear sides to rotate synchronously, which in turn indirectly drives the angle of the auxiliary switch 9 connected to the outer end of the second helical bevel gear 8 to change synchronously with the movement of the positioning rod 5. When the outer end of the positioning rod 5 separates from the positioning hole 21 at the bottom of the door frame 1, the lifting plate 23 in the lifting groove 22 at the bottom of the positioning hole 21 at the bottom of the door frame 1 automatically rises under the elasticity of the third spring 24, thereby engaging with the positioning hole 21 at the bottom of the door frame 1 and sealing the positioning hole 21. This prevents foreign objects from being present inside the positioning hole 21, which could affect the engagement effect between the positioning rod 5 and the positioning hole 21.

[0033] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bidirectional locking linkage actuator for a protective airtight door with a connecting opening, characterized in that, include; Door frame (1); The protective door (2) is symmetrically hinged at both ends of the door frame (1); The movable groove (3) is located in the middle of the protective door (2); A central shaft (10) is movably disposed in the middle of the movable groove (3) and an adjusting gear (4) is provided on its surface. A flexible bidirectional plug-in structure is provided at the center of the central axis (10); Rotary handle (13) is provided on the front and rear sides of the door frame (1), and its inner end is connected to the elastic bidirectional plug-in structure.

2. The bidirectional locking linkage actuator for a protective airtight door at a connecting port according to claim 1, characterized in that, The door frame (1) has symmetrical positioning holes (21) on the upper and lower sides of the left and right ends of the inner cavity. The side of the adjusting gear (4) is provided with a two-way locking structure, which is movably connected to the positioning hole (21). The bottom of the door frame (1) is also provided with a lifting and sealing structure, which movably seals the positioning hole (21) at the bottom of the door frame (1). The lifting and blocking structure includes a lifting blocking plate (23) and a third spring (24). The bottom of the door frame (1) is provided with a lifting groove (22). The lifting blocking plate (23) is slidably disposed inside the lifting groove (22) and has protrusions arranged in the middle array, which are movably inserted into the positioning hole (21). The third spring (24) is symmetrically disposed on both sides of the lifting groove (22) and is fixedly connected to the outside of the lifting blocking plate (23).

3. The bidirectional locking linkage actuator for a protective airtight door at a connecting port according to claim 1, characterized in that, The elastic bidirectional plug-in structure includes a rotating handle (13) and a first spring (18). The central shaft (10) is hollow in the middle. Sliding sleeves (11) are slidably arranged at the front and rear ends of the surface of the central shaft (10). The rotating handle (13) is fixedly installed at the outer end of the central shaft (10). The first spring (18) is symmetrically arranged inside the central shaft (10) and fixedly connected to the middle of the two sliding sleeves (11). A locking unit is also provided in the movable groove (3) so that the elastic bidirectional plug-in structure always engages with the adjusting gear (4) to stop when it is not under force and shrinks.

4. The bidirectional locking linkage actuator for a protective airtight door at a connecting port according to claim 2, characterized in that, The bidirectional locking structure includes a positioning rod (5) and a first bevel gear (7). The front and rear sides of the lower end of the movable groove (3) are symmetrically provided with second bevel gears (8). The front and rear sides of the door frame (1) are symmetrically provided with auxiliary switches (9), which are fixedly connected to the middle of the second bevel gear (8). The positioning rod (5) is slidably provided at both ends of the side of the adjusting gear (4), and is arranged in opposite directions, and is inserted into the positioning holes (21) on the upper and lower sides. The middle of the inner end of the positioning rod (5) is provided with a threaded groove and a transmission screw (6) is placed therein. The first bevel gear (7) is fixedly installed at the bottom of the transmission screw (6) and is connected to the inner side of the second bevel gear (8).

5. The bidirectional locking linkage actuator for a protective airtight door at a connecting opening according to claim 3, characterized in that, The locking unit includes a traction plate (12) and a positioning plate (19). The positioning plate (19) is fixedly installed in the middle of the movable groove (3) and a second spring (20) is fixedly installed on its top. An anti-rotation tooth plate (16) is fixedly installed on the top of the second spring (20) and meshes with the bottom of the adjusting gear (4). The surface of the anti-rotation tooth plate (16) is arrayed with slots (17). The traction plate (12) is fixedly installed on the inner side of the sliding sleeve (11) and a positioning rod (14) is fixedly installed on its bottom. The inner side of the positioning rod (14) is arrayed with inserts (15) that are movably inserted into the slots (17).

6. The bidirectional locking linkage actuator for a protective airtight door at a connecting opening according to claim 5, characterized in that, The front insert (15) is positioned outwards, and the rear insert (15) is positioned inwards. The positions and numbers of the slots (17) on the front and rear sides correspond to the positions and numbers of the inserts (15) on the front and rear sides, respectively.

7. The bidirectional locking linkage actuator for a protective airtight door at a connecting opening according to claim 6, characterized in that, The inserts (15) on both the front and rear sides are inclined and opposite to each other, and the cross-sectional shape of the slots (17) on both the front and rear sides corresponds to the cross-sectional shape of the inserts (15).

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