CN214091513U - Airtight threshold mechanism of people's air defense door lift - Google Patents
Airtight threshold mechanism of people's air defense door lift Download PDFInfo
- Publication number
- CN214091513U CN214091513U CN202023016289.6U CN202023016289U CN214091513U CN 214091513 U CN214091513 U CN 214091513U CN 202023016289 U CN202023016289 U CN 202023016289U CN 214091513 U CN214091513 U CN 214091513U
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- threshold
- baffle
- air defense
- defense door
- doorsill
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Abstract
The utility model discloses a civil air defense door lifting closed threshold mechanism, which comprises two L-shaped thresholds which are arranged relatively, wherein a cavity is arranged on a diaphragm at the lower end of the threshold, a connecting plate is embedded in the cavity, the two thresholds are connected through the connecting plate, a plurality of jacking nuts are arranged on the diaphragm at the lower end of the threshold, and the jacking nuts are used for fixing the connecting plate and the diaphragm at the lower end of the threshold; a baffle is hinged to the upper end of the doorsill close to the outer side, and the length of the baffle is not less than that of the doorsill; the lower end of the threshold is hinged to the lifting device close to the outer side, and the lifting device is driven by the rotary table. The utility model adopts the above structure airtight threshold mechanism of people's air defense door lift, the threshold can fully play spacing and guard action to people's air defense door, and but the different width people's air defense door of threshold adaptation.
Description
Technical Field
The utility model belongs to the technical field of people's air defense door threshold technique and specifically relates to an airtight threshold mechanism of people's air defense door lift is related to.
Background
The civil air defense door is protection equipment in civil air defense engineering and is a door of a civil air defense engineering entrance. Usually, the civil air defense door is also provided with a threshold with a certain height, and the threshold is divided into a movable threshold and a fixed threshold. The movable threshold may be a lifting threshold, i.e. a threshold which is lifted from the ground when in use. The fixed doorsill is built by cement of constructors. No matter fixed threshold or activity threshold, receive at the people's air defense door and assault, the threshold can not play the guard action to people's air defense door main part well, and the width of threshold all is unchangeable, and when people's air defense door was changed, the width of people's air defense door changed the back, and the threshold can not adapt people's air defense door well.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a airtight threshold mechanism of people's air defense door lift solves the threshold and does not well and the nonadjustable problem of threshold width to people's air defense door guard action.
In order to achieve the purpose, the utility model provides a civil air defense door lifting closed threshold mechanism, which comprises two L-shaped thresholds which are arranged oppositely, wherein a cavity is arranged on a transverse plate at the lower end of each threshold, a connecting plate is embedded in the cavity, the two thresholds are connected through the connecting plate, a plurality of jacking nuts are arranged on the transverse plate at the lower end of each threshold, and the jacking nuts are used for fixing the connecting plate and the transverse plate at the lower end of each threshold; a baffle is hinged to the upper end of the doorsill close to the outer side, and the length of the baffle is not less than that of the doorsill; the lower end of the threshold is hinged to the lifting device close to the outer side, and the lifting device is driven by the rotary table.
Preferably, the lifting device comprises a plurality of support rods, the upper ends of the support rods are uniformly hinged to the lower end of the threshold close to the outer side, and the lower ends of the support rods are rotatably connected to the displacement rod through shaft sleeves; one end of the displacement rod is connected to the first rotating shaft through threads, and the other end of the displacement rod is connected to the guide rod in a sliding mode; two ends of the first rotating shaft are rotatably connected to the fixing plate, and two ends of the guide rod are fixedly connected to the fixing plate; one end of the first rotating shaft penetrates through the fixing plate to be fixedly connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixed on the second rotating shaft, and the upper end of the second rotating shaft is fixedly connected with the rotating disc.
Preferably, the baffle is in a chicken leg shape, one side, close to the doorsill, of the baffle is a plane, the lower end of the baffle is an arc surface, and the width of the upper end of the baffle is larger than that of the lower end of the baffle.
Preferably, the baffle has a certain included angle with the threshold, and under the closed state of the baffle, the upper end of the baffle is embedded into the threshold, and the lower end of the baffle is positioned outside the threshold.
The utility model adopts the above structure airtight threshold mechanism of people's air defense door lift all sets up the threshold in people's air defense door both sides, when people's air defense door received the impact, the threshold can play fine spacing and guard action to people's air defense door. And the width of the doorsill is adjustable, so that the doorsill can be well adapted to civil air defense doors with various widths.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural view of the lifting frame and the doorsill in the embodiment of the present invention.
Reference numerals
1. A door leaf; 2. a threshold; 3. a baffle plate; 4. a support bar; 5. a first rotating shaft; 6. a fixing plate; 7. tightly pushing the nut; 8. a connecting plate; 9. a turntable; 10. a second rotating shaft; 11. a second bevel gear; 12. a first bevel gear; 13. a displacement rod; 14. and a shaft sleeve.
Detailed Description
The technical solution of the present invention is further explained by the accompanying drawings and examples.
As shown in fig. 1-2, a civil air defense door lifting and closing threshold mechanism comprises two L-shaped thresholds 2 which are arranged oppositely, and a civil air defense door leaf 1 is arranged between the two thresholds 2. When the civil air defense door is impacted, the doorsill 2 can play a good limiting and protecting role on the civil air defense door leaf 1.
The cross plate of the lower end of the threshold 2 is provided with a cavity, a connecting plate 8 is embedded in the cavity, the two thresholds 2 are connected through the connecting plate 8, a plurality of jacking nuts 7 are arranged on the cross plate of the lower end of the threshold 2, and the jacking nuts 7 are used for fixing the connecting plate 8 and the cross plate of the lower end of the threshold 2. Through adjusting connecting plate 8, the width between two doorsills 2 can be adjusted, and then be convenient for the people's air defense door of different width of adaptation.
The upper end of the threshold 2 is hinged with a baffle 3 close to the outer side, and the length of the baffle 3 is not less than that of the threshold 2. When the civil air defense door does not need to open the threshold 2, the threshold 2 is positioned below the ground, and the baffle 3 is unfolded at the moment, so that the gap outside the threshold 2 can be covered, and further, external sundries are effectively prevented from entering the position of the threshold 2.
The baffle 3 is the drumstick form, and baffle 3 is close to threshold 2 one side and is the plane, and 3 lower extremes of baffle are the arc surface, and 3 upper end widths of baffle are greater than the lower extreme width. Baffle 3 and threshold 2 have certain contained angle, and 3 closed states of baffle down, 3 upper ends of baffle imbed threshold 2 inside, and 3 lower extremes of baffle are in threshold 2 outsiders. When the threshold 2 descends, the baffle 3 can be automatically unfolded when contacting the ground, manual adjustment by people is not needed, and the use is convenient. After the threshold 2 rises, the baffle 3 can be automatically condensed into the threshold 2 after being separated from the ground support, so that the external space cannot be excessively occupied, and the reciprocating motion of external personnel cannot be influenced.
The lower end of the threshold 2 is hinged on a lifting device close to the outer side, and the lifting device is driven by a turntable 9. The lifting device comprises a plurality of supporting rods 4, the upper ends of the supporting rods 4 are evenly hinged to the lower end, close to the outer side, of the threshold 2, and the lower ends of the supporting rods 4 are rotatably connected to the displacement rod 13 through shaft sleeves 14. One end of the displacement rod 13 is connected to the first rotating shaft 5 through threads, and the other end of the displacement rod 13 is connected to the guide rod in a sliding mode. Two ends of the first rotating shaft 5 are rotatably connected to the fixed plate 6, and two ends of the guide rod are fixedly connected to the fixed plate 6; one end of the first rotating shaft 5 penetrates through the fixing plate 6 to be fixedly connected with a first bevel gear 12, the first bevel gear 12 is meshed with a second bevel gear 11, the second bevel gear 11 is fixed on a second rotating shaft 10, and the upper end of the second rotating shaft 10 is fixedly connected with a rotating disc 9. By rotating the turntable 9, the lifting of the threshold 2 is driven. The lead screw lifting mode is stable in adjustment, low in use cost and long in service life.
To sum up, the utility model adopts the airtight threshold mechanism of people's air defense door lift of above-mentioned structure, all set up the threshold in people's air defense door both sides, playing certain supporting role prerequisite under to people's air defense door, the threshold can also help people's air defense door to resist the impact, plays fine spacing and guard action to people's air defense door. The threshold width can be adjusted, can adapt different width people's air defense doors, and the suitability is better.
The above are specific embodiments of the present invention, but the scope of protection of the present invention should not be limited thereto. Any changes or substitutions which can be easily conceived by those skilled in the art within the technical scope of the present invention are covered by the protection scope of the present invention, and therefore, the protection scope of the present invention is subject to the protection scope defined by the claims.
Claims (4)
1. The utility model provides a airtight threshold mechanism of people's air defense door lift which characterized in that: the doorsill structure comprises two L-shaped doorsills which are oppositely arranged, a cavity is formed in a transverse plate at the lower end of each doorsill, a connecting plate is embedded in the cavity, the two doorsills are connected through the connecting plate, a plurality of jacking nuts are arranged on the transverse plate at the lower end of each doorsill, and the jacking nuts are used for fixing the connecting plate and the transverse plate at the lower end of each doorsill; a baffle is hinged to the upper end of the doorsill close to the outer side, and the length of the baffle is not less than that of the doorsill; the lower end of the threshold is hinged to the lifting device close to the outer side, and the lifting device is driven by the rotary table.
2. The civil air defense door lifting closed threshold mechanism as claimed in claim 1, wherein: the lifting device comprises a plurality of supporting rods, the upper ends of the supporting rods are uniformly hinged to the lower end of the threshold close to the outer side, and the lower ends of the supporting rods are rotatably connected to the displacement rod through shaft sleeves; one end of the displacement rod is connected to the first rotating shaft through threads, and the other end of the displacement rod is connected to the guide rod in a sliding mode; two ends of the first rotating shaft are rotatably connected to the fixing plate, and two ends of the guide rod are fixedly connected to the fixing plate; one end of the first rotating shaft penetrates through the fixing plate to be fixedly connected with the first bevel gear, the first bevel gear is meshed with the second bevel gear, the second bevel gear is fixed on the second rotating shaft, and the upper end of the second rotating shaft is fixedly connected with the rotating disc.
3. The civil air defense door lifting closed threshold mechanism as claimed in claim 1, wherein: the baffle is in a drumstick shape, one side, close to the doorsill, of the baffle is a plane, the lower end of the baffle is an arc surface, and the width of the upper end of the baffle is larger than that of the lower end of the baffle.
4. The civil air defense door lifting closed threshold mechanism as claimed in claim 3, wherein: the baffle has certain contained angle with the threshold, and under the baffle closed condition, inside baffle upper end embedding threshold, the baffle lower extreme was in the threshold outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023016289.6U CN214091513U (en) | 2020-12-15 | 2020-12-15 | Airtight threshold mechanism of people's air defense door lift |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023016289.6U CN214091513U (en) | 2020-12-15 | 2020-12-15 | Airtight threshold mechanism of people's air defense door lift |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214091513U true CN214091513U (en) | 2021-08-31 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023016289.6U Active CN214091513U (en) | 2020-12-15 | 2020-12-15 | Airtight threshold mechanism of people's air defense door lift |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214091513U (en) |
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2020
- 2020-12-15 CN CN202023016289.6U patent/CN214091513U/en active Active
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