Civil air defense door with movable doorsill
By designing the movable sill door, the cooperation of embedded parts, drive components and fixed components is used to solve the problem of fixed sill blocking vehicle passage and material delivery, and convenient passage and transportation in wartime or emergency situations are achieved .
Patent Information
- Application Number
- CN202421034974.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-13
- Publication Date
- 2024-12-31
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
The existing fixed civil defense thresholds hinder vehicles and material delivery, resulting in inconvenience in traffic during wartime or emergency situations.
Design a sill movable civil defense door. Through the cooperation of embedded parts, drive components and fixed components, the sill can move in the vertical direction, fixed in the door frame in normal times, and move into the embedded parts in wartime or emergency situations to ensure that The floor below the door frame is flat, which is easy to pass through vehicles and transport materials.
It realizes flexible movement of the civil defense threshold, ensures that it can be protected in peacetime, facilitates vehicle passage and material transportation in wartime or emergency situations, and improves the traffic and transportation efficiency of civil defense projects.
Smart Images
Figure CN222276503U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the field of civil air defense engineering, and in particular to a civil air defense door with a movable threshold. Background Art
[0002] The full name of civil defense project is people's air defense project, which refers to underground protective buildings built separately to ensure the shelter of personnel and materials, civil air defense command, and medical rescue in wartime, as well as basements built in combination with ground buildings that can be used for air defense in wartime.
[0003] The civil air defense door is the door at the entrance and exit of the civil air defense project. It has functions such as fire prevention, explosion prevention, smoke prevention, and explosion prevention. It protects the personnel, materials, equipment, etc. inside the protection project from the harm of war, and provides a safe evacuation route for personnel in wartime or emergency situations.
[0004] The thresholds of the civil air defense doors we currently use are generally fixed, which makes it inconvenient for vehicles to pass through and poses a great obstacle to the transportation of materials. Summary of the invention
[0005] In order to facilitate vehicles to pass through the civil air defense door, the present application provides a civil air defense door with a movable threshold.
[0006] The present application provides a movable threshold civil air defense door adopting the following technical solution:
[0007] A threshold movable civil defense door, comprising a door frame, a door leaf and a threshold, and also comprising an embedded part, a driving assembly and a fixing assembly. The embedded part is embedded in the ground and is located below the door frame. A slide groove is provided at the lower end of the door frame in the vertical direction. The two ends of the threshold are respectively slidably arranged in the two slide grooves. A receiving groove opposite to the threshold is provided on the embedded part. The driving assembly is arranged on the door frame and connected to the threshold. The driving assembly is used to drive the threshold to move in the vertical direction. The fixing assembly is arranged in the embedded part, and the fixing assembly is used to fix the threshold.
[0008] Optionally, the driving assembly includes a driving cylinder, which is arranged inside both sides of the door frame, and a piston rod of the driving cylinder extends vertically downward and is connected to the door sill.
[0009] Optionally, the fixing assembly includes a first spring, a clamping block and an unlocking piece. Fixed grooves with inclined bottom walls are provided on both side walls of the accommodating groove. The upper end depth of the fixed groove is greater than the lower end depth. The clamping block is wedge-shaped, and one side of the clamping block is in contact with the bottom wall of the fixing groove, and the other side is in contact with the threshold inserted into the accommodating groove. The first spring is connected to the top side wall of the fixing groove and contacts the clamping block. The first spring makes the clamping block always have a tendency to move downward along the fixing groove. The unlocking piece is arranged in the embedded part and is used to drive the clamping block to move upward along the fixing groove.
[0010] Optionally, a guide groove is provided on the bottom wall of the fixing groove, and a guide block adapted to the guide groove is provided on the abutting block.
[0011] Optionally, the unlocking member includes a lifting cylinder, which is arranged on the embedded member and located in the fixing groove, and the piston rod of the lifting cylinder extends vertically upward and contacts the abutting block.
[0012] Optionally, a plurality of fixing grooves are provided on both side walls of the accommodating groove.
[0013] Optionally, a slot body is provided on the door frame and above the slide slot, the slot body is connected to the slide slot, and a baffle is slidably provided in the slot body for closing the slide slot opening.
[0014] Optionally, a second spring is arranged on the door frame and in the groove body, and the second spring makes the baffle always have a tendency to move downward.
[0015] In summary, the present application includes at least one of the following beneficial technical effects:
[0016] 1. The civil air defense door is installed above the embedded parts. Usually, the threshold is driven by the driving component to move upward to the slide slot. At this time, part of the threshold is located in the door frame and part is located in the embedded parts. The fixing component fixes the threshold so that the threshold can function as a barrier and seal normally.
[0017] 2. When vehicles pass through to transport materials in wartime or emergency situations, the driving component drives the threshold to move to the embedded parts, so that the ground under the door frame is in a flat state, which is convenient for the passage of vehicles and the transportation of materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is a structural schematic diagram of an embodiment of the present application.
[0019] Figure 2 It is a schematic diagram of the embedded parts structure in the embodiment of the present application.
[0020] Figure 3 It is a partial cross-sectional view used to show the structure of the drive assembly in the embodiment of the present application.
[0021] Figure 4 It is a cross-sectional view used to show the structure of the fixing component in the embodiment of the present application.
[0022] Description of reference numerals:
[0023] 1. Door frame; 11. Slide groove; 12. Slot body; 2. Door leaf; 3. Door sill; 4. Embedded parts; 41. Receiving groove; 42. Fixing groove; 43. Guide groove; 5. Driving assembly; 51. Driving cylinder; 6. Fixing assembly; 61. First spring; 62. Clamping block; 621. Guide block; 63. Lifting cylinder; 7. Baffle; 71. Second spring. DETAILED DESCRIPTION
[0024] The following is combined with Figure 1-4 This application is described in further detail.
[0025] The present application embodiment discloses a threshold movable civil defense door, referring to Figure 1 and Figure 2 A threshold movable civil air defense door comprises a door frame 1, a door leaf 2 and a threshold 3, and also comprises an embedded part 4, a driving assembly 5 and a fixing assembly 6. The embedded part 4 is pre-built at the installation position of the civil air defense door during the construction of the civil air defense project, and the embedded part 4 is located directly below the door frame 1. The door frame 1 is in the shape of a door, and a slide groove 11 is provided on the opposite side of the lower ends of the two columns of the door frame 1 along the vertical direction. The cross-sectional shape of the slide groove 11 is T-shaped or dovetail-shaped. The two ends of the threshold 3 are processed to match the cross-sectional shape of the slide groove 11, and the two ends of the threshold 3 are respectively slidably arranged in the slide grooves 11 on both sides of the door frame 1. The embedded part 4 is provided with a receiving groove 41 opposite to the threshold 3, and the threshold 3 can be moved into the embedded part 4 through the receiving groove 41, and the depth of the receiving groove 41 is equal to the height of the threshold 3. The driving assembly 5 is arranged on the door frame 1 and connected to the threshold 3. The driving assembly 5 is used to drive the threshold 3 to move along the vertical direction, and drive the threshold 3 to move from the door frame 1 to the embedded part 4. The fixing component 6 is arranged in the embedded part 4, the length of the slide groove 11 is less than the height of the threshold 3, when the upper end of the threshold 3 is located in the slide groove 11, the lower end part of the threshold 3 is located in the embedded part 4, the fixing component 6 is connected to the threshold 3 and is used to fix the part of the threshold 3 located in the embedded part 4.
[0026] The air defense door is installed above the embedded part 4. Normally, the threshold 3 is driven upward to the slide groove 11 by the driving component 5. At this time, the threshold 3 is partially located in the door frame 1 and partially located in the embedded part 4. The fixing component 6 fixes the threshold 3 so that the threshold 3 can normally play the function of blocking and sealing. When vehicles pass through to transport materials in wartime or emergency situations, the driving component 5 drives the threshold 3 to move to the embedded part 4, so that the ground below the door frame 1 is in a flat state, which is convenient for the passage of vehicles and the transportation of materials.
[0027] Reference Figure 3The driving assembly 5 includes a driving cylinder 51, which is embedded and installed on the door frame 1. The driving cylinder 51 is installed inside both sides of the door frame 1. The driving cylinder 51 is located above the slide slot 11, and the piston rod of the driving cylinder 51 extends vertically downward into the slide slot 11 and is connected to the door sill 3. By synchronously starting the driving cylinders 51 on both sides of the door frame 1, the door sill 3 is driven to move in the vertical direction, thereby achieving the effect of facilitating the door sill 3 to move in the vertical direction.
[0028] Reference Figure 2 and Figure 4 The fixing assembly 6 includes a first spring 61, a pressing block 62 and an unlocking member. A fixing groove 42 is provided on both side walls of the receiving groove 41. The bottom wall of the fixing groove 42 is inclined so that the cross-sectional shape of the fixing groove 42 is a right-angled trapezoid ( Figure 4 As shown), and the upper end depth of the fixed groove 42 is greater than the lower end depth. The abutting block 62 is wedge-shaped, and the abutting block 62 is located in the fixed groove 42. One side of the abutting block 62 is in contact with the bottom wall of the fixed groove 42, and the other side is in contact with the threshold 3 inserted into the accommodating groove 41. The first spring 61 is connected and installed on the top side wall of the fixed groove 42. The first spring 61 extends downward and conflicts with the abutting block 62. The first spring 61 makes the abutting block 62 always have a tendency to move downward along the fixed groove 42. The unlocking member is arranged in the embedded part 4 and connected to the abutting block 62. The unlocking member is used to drive the abutting block 62 to move upward along the fixed groove 42. A guide groove 43 is provided on the bottom wall of the fixed groove 42 along the length direction of the fixed groove 42, and a guide block 621 is provided on the side of the abutting block 62 facing the bottom wall of the fixed groove 42. The cross-sectional shapes of the guide block 621 and the guide groove 43 are both dovetail-shaped, and the guide block 621 is clamped and slidably arranged in the guide groove 43.
[0029] When the threshold 3 needs to be driven upward, the threshold 3 drives the abutting block 62 to move upward along the fixed groove 42, and the gap between the abutting block 62 and the threshold 3 increases, so that the threshold 3 can move upward smoothly. After the threshold 3 moves upward to its position, the abutting block 62 always keeps one side in contact with the bottom wall of the fixed groove 42 and the other side in contact with the threshold 3 under the action of the first spring 61. At this time, when the threshold 3 is subjected to a downward force, the threshold 3 has a tendency to drive the abutting block 62 to move downward, so that the abutting block 62 clamps and fixes the threshold 3 on the embedded part 4, ensuring the stability of the threshold 3 during normal use. When the threshold 3 needs to be driven to move toward the embedded part 4, the abutting block 62 is driven to move upward along the fixed groove 42 by the unlocking member, so that the abutting block 62 is disengaged from the fixed groove 42, and the threshold 3 can be smoothly driven to move downward toward the embedded part 4.
[0030] Reference Figure 4The unlocking member includes a lifting cylinder 63, which is arranged on the embedded part 4 and located in the fixing groove 42. The lifting cylinder 63 is located below the abutting block 62, and the piston rod of the lifting cylinder 63 extends vertically upward and abuts against the abutting block 62.
[0031] Reference Figure 2 Furthermore, a plurality of fixing grooves 42 are provided on the side walls of the receiving groove 41 , and fixing components 6 are provided on the embedded part 4 and in the plurality of fixing grooves 42 to improve the stability of the door sill 3 when being fixed.
[0032] Reference Figure 3 A slot 12 is provided on both side columns of the door frame 1. The slot 12 is located above the slide slot 11 and is connected to the slide slot 11. A baffle 7 is slidably provided in the slot 12. The width of the baffle 7 is greater than the thickness of the threshold 3. The baffle 7 is used to block and close the opening side of the slide slot 11. A second spring 71 is also installed on the door frame 1 and located in the slot 12. One end of the second spring 71 is connected to the top wall of the slot 12 and the other end is connected to the baffle 7. The second spring 71 makes the baffle 7 always have a tendency to move downward. Under the action of the second spring 71, the baffle 7 always presses against the threshold 3, so that the baffle 7 has the effect of blocking the opening of the slide slot 11, preventing the debris on the ground from entering the slide slot 11 after the threshold 3 is lowered and affecting the lifting of the threshold 3.
[0033] The implementation principle of a civil air defense door with a movable threshold in an embodiment of the present application is as follows: the civil air defense door is installed above the embedded part 4, and the threshold 3 is usually driven by the driving component 5 to move upward to the slide groove 11, so that the threshold 3 can normally play the function of blocking and sealing; when vehicles pass through to transport materials in wartime or emergency situations, the driving component 5 drives the threshold 3 to move to the embedded part 4, so that the ground under the door frame 1 is in a flat state, which is convenient for the passage of vehicles and the transportation of materials.
[0034] Finally, it should be noted that in the description of this application, it should be noted that the terms "vertical", "up", "down", "horizontal", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on this application.
[0035] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.
Claims
1. A threshold movable civil air defense door, comprising a door frame (1), a door leaf (2) and a threshold (3), characterized in that: The door frame (1) further comprises an embedded part (4), a driving assembly (5) and a fixing assembly (6); the embedded part (4) is embedded on the ground and located below the door frame (1); a slide groove (11) is provided at the lower end of the door frame (1) in the vertical direction; the two ends of the threshold (3) are respectively slidably arranged in the two slide grooves (11); the embedded part (4) is provided with a receiving groove (41) opposite to the threshold (3); the driving assembly (5) is arranged on the door frame (1) and connected to the threshold (3); the driving assembly (5) is used to drive the threshold (3) to move in the vertical direction; the fixing assembly (6) is arranged in the embedded part (4); the fixing assembly (6) is used to fix the threshold (3).
2. The movable threshold civil air defense door according to claim 1, characterized in that: The driving assembly (5) comprises a driving cylinder (51), which is arranged inside both sides of the door frame (1), and a piston rod of the driving cylinder (51) extends vertically downward and is connected to the door sill (3).
3. The movable threshold civil air defense door according to claim 1, characterized in that: The fixing assembly (6) comprises a first spring (61), a clamping block (62) and an unlocking member. The two side walls of the receiving groove (41) are provided with fixing grooves (42) with bottom walls inclined therefrom. The upper end depth of the fixing groove (42) is greater than the lower end depth. The clamping block (62) is wedge-shaped, and one side of the clamping block (62) is in contact with the bottom wall of the fixing groove (42) and the other side is in contact with the threshold (3) inserted into the receiving groove (41). The first spring (61) is connected to the top side wall of the fixing groove (42) and is in contact with the clamping block (62). The first spring (61) enables the clamping block (62) to always have a tendency to move downward along the fixing groove (42). The unlocking member is arranged in the embedded member (4) and is used to drive the clamping block (62) to move upward along the fixing groove (42).
4. The movable threshold civil air defense door according to claim 3, characterized in that: A guide groove (43) is provided on the bottom wall of the fixing groove (42), and a guide block (621) adapted to the guide groove (43) is provided on the abutting block (62).
5. The movable threshold civil air defense door according to claim 4, characterized in that: The unlocking member comprises a lifting cylinder (63), which is arranged on the embedded member (4) and located in the fixing groove (42), and the piston rod of the lifting cylinder (63) extends vertically upward and contacts the abutting block (62).
6. The movable threshold civil air defense door according to claim 3, characterized in that: A plurality of fixing grooves (42) are provided on the two side walls of the containing groove (41).
7. The movable threshold civil air defense door according to claim 1, characterized in that: A slot body (12) is provided on the door frame (1) and located above the slide slot (11); the slot body (12) is connected to the slide slot (11); a baffle (7) is slidably provided in the slot body (12) for closing the opening of the slide slot (11).
8. The movable threshold civil air defense door according to claim 7, characterized in that: A second spring (71) is arranged on the door frame (1) and located in the groove body (12), and the second spring (71) enables the baffle (7) to always have a tendency to move downward.