CN210738397U - Reinforced concrete protective airtight door - Google Patents
Reinforced concrete protective airtight door Download PDFInfo
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- CN210738397U CN210738397U CN201921388797.1U CN201921388797U CN210738397U CN 210738397 U CN210738397 U CN 210738397U CN 201921388797 U CN201921388797 U CN 201921388797U CN 210738397 U CN210738397 U CN 210738397U
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Abstract
The utility model relates to a reinforced concrete protective airtight door belongs to the technical field of civil air defense engineering equipment, including installing door body and the door frame on the wall body, be fixed with the mount pad on the wall body, fixed mounting has the connecting axle on the mount pad, the door body articulates on the connecting axle, and the mounting groove has been seted up to the bottom of the door body, is provided with the supporting wheel in the mounting groove, and the supporting wheel is connected with the confession the drive arrangement that the supporting wheel reciprocated. The utility model discloses set up the supporting wheel bottom the door body to share the holding power to the door body through the articulated position of the supporting wheel for the door body, have the effect that improves a body life.
Description
Technical Field
The utility model belongs to the technical field of a civil air defense engineering equipment's technique and specifically relates to a reinforced concrete protective airtight door is related to.
Background
The protective airtight door is arranged at an entrance and an exit of civil air defense engineering and is used for blocking attack means such as shock waves and toxic agents in an emergency so as to protect the life and property safety of people. The reinforced concrete protective airtight door is formed by pouring reinforced concrete, and has high quality and strong impact resistance.
At present, the patent document with the publication number of CN207988854U discloses a reinforced concrete protective airtight door, which comprises a door frame and a door leaf rotatably connected to the door frame, slots are arranged on both sides of the door frame, a bolt for rotatably inserting into the slots is rotatably connected to the door leaf, a driving shaft is rotatably connected to the door leaf, the driving shaft passes through the door leaf, a linkage mechanism for driving the bolt to rotate along with the driving shaft is arranged between the driving shaft and the bolt, and each side of the door leaf corresponds to one linkage mechanism respectively.
The door leaf of the reinforced concrete protective airtight door is rotatably connected to the door frame, only one side edge of the door leaf is hinged to the door frame after the door leaf is opened, and other parts are all suspended.
SUMMERY OF THE UTILITY MODEL
To the not enough of existence among the above-mentioned prior art, the utility model aims at providing a reinforced concrete protective airtight door, it sets up the supporting wheel bottom the door body to share the holding power to the door body through the articulated position of the supporting wheel for the door body, have the effect that improves a body life.
The above object of the present invention is achieved by the following technical solutions:
the utility model provides a reinforced concrete protective airtight door, is including installing the door body and the door frame on the wall body, be fixed with the mount pad on the wall body, fixed mounting has the connecting axle on the mount pad, the door body articulates on the connecting axle, and the mounting groove has been seted up to the bottom of the door body, is provided with the supporting wheel in the mounting groove, and the supporting wheel is connected with the confession the drive arrangement that the supporting wheel reciprocated.
By adopting the technical scheme, when the door body is opened, the supporting wheels extend out of the mounting groove and abut against the ground through the driving device, so that the supporting wheels can provide supporting force for the door body, the weight of the door body is shared by the hinged parts of the door body, and the service life of the door body is prolonged; when the door body is closed, the supporting wheels are retracted into the mounting groove through the driving device, so that the supporting wheels are prevented from blocking the door body, and the door body can be closed tightly.
The utility model discloses a further set up to: the driving device comprises a circular rail fixedly arranged in an installation groove, a rack is fixed on a supporting wheel, the rack is in sliding fit with the circular rail, a transmission gear is rotatably supported in the installation groove and meshed with the rack, a ratchet wheel is coaxially fixed on the transmission gear, a pawl is rotatably supported in the installation groove and matched with the ratchet wheel, the pawl is connected with a second pressure spring, one end of the second pressure spring is fixed on the inner wall of the installation groove, the other end of the second pressure spring is fixed on the pawl, and a control device for controlling the pawl to be meshed with or separated from the ratchet wheel is arranged in the door body.
By adopting the technical scheme, after the door body is opened, the control device enables the pawl to be meshed with the ratchet wheel, the supporting wheel extends out of the mounting groove under the action of self gravity, the rack drives the transmission gear to rotate so as to drive the ratchet wheel to rotate, at the moment, the pawl does not block the ratchet wheel, after the supporting wheel is abutted with the ground, if the supporting wheel has a trend of pushing the rack upwards under the action of the door body, the rack drives the transmission gear to have a trend of rotating in the opposite direction, meanwhile, the transmission gear enables the ratchet wheel to have a trend of rotating in the opposite direction, at the moment, the trend of rotating in the opposite direction of the ratchet wheel under the action of the pawl is blocked, so that the trend of pushing the rack upwards by the supporting wheel is blocked, part of gravity of the door body is shared by the supporting wheel, and the function of enabling the supporting wheel to; when the door body is closed, the control device enables the pawl to be separated from the ratchet wheel, and the upward movement trend of the support wheel is not blocked.
The utility model discloses a further set up to: the control device comprises a first bevel gear coaxially fixed on the connecting shaft, a support groove is formed in the door body, a second bevel gear is rotatably supported in the support groove and meshed with the first bevel gear, a key groove is formed in the second bevel gear, a communicating hole is formed in the door body and communicates with the support groove and the mounting groove, a transmission rod is arranged in the communicating hole, one end of the transmission rod extends into the key groove, the other end of the transmission rod extends into the mounting groove, a transmission key is arranged at one end of the transmission rod, which is located in the key groove, the transmission rod is in sliding fit with the key groove through the transmission key and is in running fit with the second bevel gear, threads are arranged on the communicating.
By adopting the technical scheme, when the door body is closed, the first bevel gear is fixed, so that the rotation of the door body around the connecting shaft enables the second bevel gear to rotate around the connecting shaft and also to rotate, and the transmission rod is in sliding fit and running fit with the second bevel gear through key connection, so that under the condition that the transmission rod is in threaded fit with the communication hole, the transmission rod can move towards the direction of the mounting groove and further abuts against the pawl to enable the pawl to be separated from the ratchet wheel; when the door body is opened, the second bevel gear rotates reversely, so that the transmission rod moves towards the direction far away from the mounting groove, the pawl is supported on the ratchet wheel again under the action of the second pressure spring, and the control of opening and closing the door body on the pawl is realized.
The utility model discloses a further set up to: a first pressure spring is sleeved on the circular rail, one end of the first pressure spring is fixed on the door body, and the other end of the first pressure spring is fixed on the rack.
Through adopting above-mentioned technical scheme, first pressure spring has the trend that promotes the rack to the mounting groove motion outward, and when opening a body, rack and supporting wheel pop out from the mounting groove under the effect of self gravity and first pressure spring, and first pressure spring is favorable to the supporting wheel to follow the process that stretches out in the mounting groove more smoothly, is favorable to making the supporting wheel to form more stable support to the body of door.
The utility model discloses a further set up to: a threshold slope is arranged below the door frame and fixed on the ground.
By adopting the technical scheme, when the door body is closed, the supporting wheel moves to be just contacted with the slope of the threshold, the pawl is just separated from the ratchet wheel, the supporting wheel moves downwards in the mounting groove under the force of the slope of the threshold when the door body is continuously closed, and the supporting wheel completely enters the mounting groove after the door body is completely closed, so that the supporting wheel is accommodated, and the influence of the supporting wheel on the closing of the door body is avoided.
The utility model discloses a further set up to: and a rubber pad is arranged at the edge of the door frame.
By adopting the technical scheme, when the door body is closed, the rubber pad can play a role in buffering the door body, the service life of the door body is prolonged, and the rubber pad can enable the door body to be closed more tightly.
The utility model discloses a further set up to: the ground below the door frame is provided with a slideway.
Through adopting above-mentioned technical scheme, at the in-process that the door body was closed, supporting wheel sliding fit can make the supporting wheel move along fixed route in the slide, is favorable to reducing the supporting wheel and takes place the dead probability of card, makes the switch of the door body more smooth and easy.
The utility model discloses a further set up to: the door body is provided with a door lock.
Through adopting above-mentioned technical scheme, after the door body closed, can be with the fixed position of the door body and door frame through the lock to make the door body keep in the state of closing, promote the safety protection effect.
To sum up, the utility model discloses a beneficial technological effect does:
1. when the door body is opened, the supporting wheels extend out of the mounting groove through the driving device and are abutted to the ground, so that the supporting wheels can provide supporting force for the door body, the weight of the door body is shared by the hinged parts of the door body, and the service life of the door body is prolonged; when the door body is closed, the supporting wheels are retracted into the mounting groove through the driving device, so that the supporting wheels are prevented from blocking the closing of the door body, and the door body can be closed tightly;
2. the support wheel can support the door body or can retract into the mounting groove by the engagement and separation of the ratchet wheel and the pawl; the pawl is controlled by the cooperation of the two bevel gears and the transmission rod; the first pressure spring is beneficial to the smooth process that the supporting wheel extends out of the mounting groove and is beneficial to the more stable support of the door body by the supporting wheel;
3. in the closing process of the door body, the threshold slope can force the supporting wheel to be accommodated into the mounting groove, so that the influence on the closing of the door body is avoided; when the door body is closed, the rubber pad can play a role in buffering the door body, so that the door body is closed more tightly; the slideway is beneficial to reducing the probability of the dead locking of the supporting wheel, so that the opening and closing of the door body are smoother; the door lock can promote the safety protection effect.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a cross-sectional view of the door body;
FIG. 3 is an enlarged partial schematic view of portion A of FIG. 2;
fig. 4 is an exploded view of the transmission rod and the second bevel gear.
In the figure, 1, a wall body; 11. a mounting seat; 12. a connecting shaft; 2. a door body; 21. a hinged seat; 22. mounting grooves; 221. a circular rail; 222. a rack; 223. mounting holes; 224. a first pressure spring; 225. a support wheel; 226. a transmission gear; 227. a ratchet wheel; 228. a pawl; 229. a second pressure spring; 23. a support groove; 24. a communicating hole; 25. a door lock; 3. a door frame; 31. a rubber pad; 32. a threshold slope; 4. a control device; 41. a first bevel gear; 42. a second bevel gear; 421. a keyway; 43. a transmission rod; 431. a drive key; 5. a slideway.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and 2, in order to provide the reinforced concrete protective airtight door disclosed by the present invention, the door body 2 and the door frame 3 are installed on the wall body 1, the door body 2 is matched with the door frame 3, the door body 2 is a cuboid structure formed by pouring reinforced concrete, the door body 2 is vertically arranged, and the rubber pad 31 is installed at the edge of the door frame 3, which is beneficial to reducing the impact when the door body 2 is closed; fixed mounting has mount pad 11 on the wall body 1, mount pad 11 sets up adjacent with a vertical limit of door frame 3, install connecting axle 12 on the mount pad 11, the vertical setting of connecting axle 12, the upper and lower both ends of connecting axle 12 are fixed respectively on two mount pads 11, be fixed with articulated seat 21 on a vertical side of the door body 2, the door body 2 articulates on connecting axle 12 through articulated seat 21, when the door body 2 was opened or was closed, the door body 2 rotated around the axis of connecting axle 12, and connecting axle 12 keeps its rigidity.
Referring to fig. 2 and 3, in order to share the weight of the door body 2 borne by the hinge base 21, an installation groove 22 is vertically formed in the bottom of the door body 2, the installation groove 22 is provided with an opening on the bottom surface of the door body 2, a circular rail 221 is vertically arranged in the installation groove 22, the upper end of the circular rail 221 is fixed on the door body 2, a rack 222 is connected to the circular rail 221, the rack 222 is vertically arranged and is provided with an installation hole 223 along the vertical direction, the installation hole 223 is opened at the upper end of the rack 222, the diameter of the installation hole 223 is the same as that of the circular rail 221, and the rack 222 is slidably matched on the circular rail 221 through the; the circular rail 221 is sleeved with a first pressure spring 224, the upper end of the first pressure spring 224 is fixed on the door body 2, the lower end of the first pressure spring 224 is fixed at the upper end of the rack 222, the first pressure spring 224 has a tendency of pushing the rack 222 to move out of the mounting groove 22, the lower end of the rack 222 is fixedly provided with a supporting wheel 225, and when the door body 2 is opened, the supporting wheel 225 can stretch out of the mounting groove 22 under the pushing of the self gravity and the first pressure spring 224, so that the support is abutted to the ground.
Referring to fig. 2 and 3, in order to enable the support wheel 225 to abut against the ground, the support wheel 225 can provide an upward supporting force for the door body 2, a transmission gear 226 is rotatably supported in the installation groove 22, the transmission gear 226 is engaged with the rack 222, a ratchet wheel 227 is coaxially fixed on the transmission gear 226, a pawl 228 is rotatably supported in the installation groove 22, the pawl 228 is engaged with the ratchet wheel 227, the pawl 228 is connected with a second compression spring 229, one end of the second compression spring 229 is fixed on the inner wall of the installation groove 22, the other end of the second compression spring 229 is fixed on the pawl 228, and the second compression spring 229 pushes the pawl 228, so that the pawl 228 tends to be engaged with the ratchet wheel 227; a control device 4 is arranged in the door body 2, when the door body 2 is opened, the control device 4 can enable a pawl 228 to be meshed with a ratchet wheel 227, when a support wheel 225 is ejected from the mounting groove 22 under the action of a first pressure spring 224, a rack 222 drives a transmission gear 226 to rotate so as to drive the ratchet wheel 227 to rotate, at the moment, the pawl 228 does not block the ratchet wheel 227, when the support wheel 225 abuts against the ground, if the support wheel 225 pushes the rack 222 upwards under the action of the door body 2, the rack 222 drives the transmission gear 226 to have a tendency of reverse rotation, and at the same time, the transmission gear 226 enables the ratchet wheel 227 to have a tendency of reverse rotation, at the moment, the tendency of reverse rotation of the ratchet wheel 227 under the action of the pawl 228 is blocked, so that the tendency of pushing the rack 222 upwards by the support wheel 225 is blocked, therefore, a part of gravity of the door body 2 is shared by the, the function of enabling the supporting wheel 225 to provide upward supporting force for the door body 2 is realized; when the door 2 is closed, the control device 4 separates the pawl 228 from the ratchet wheel 227, and the support wheel 225 does not tend to move upward.
Referring to fig. 2 and 4, the control device 4 comprises a first bevel gear 41 coaxially fixed on the connecting shaft 12, a support groove 23 is formed in the surface of the door body 2 provided with the hinge seat 21, a second bevel gear 42 is rotatably supported in the support groove 23, the second bevel gear 42 is meshed with the first bevel gear 41, a communicating hole 24 is formed in the door body 2, the communicating hole 24 communicates the support groove 23 with the mounting groove 22, a transmission rod 43 is arranged in the communicating hole 24, a key groove 421 is formed in the second bevel gear 42, one end of the transmission rod 43 extends into the key groove 421, the other end of the transmission rod extends into the mounting groove 22, a transmission key 431 is arranged at one end of the transmission rod 43 positioned in the key groove 421, the transmission rod 43 is in sliding fit with the key groove 421 through the transmission key 431, the transmission rod 43 is in rotating fit with the second bevel gear 42, threads are arranged on; when the door body 2 is closed, since the first bevel gear 41 is fixed, the rotation of the door body 2 around the connecting shaft 12 will make the second bevel gear 42 rotate on its own while rotating around the connecting shaft 12, so as to drive the transmission rod 43 to rotate, and referring to fig. 3, since the transmission rod 43 is screwed in the communicating hole 24, the transmission rod 43 can move towards the mounting groove 22, so as to abut against the pawl 228, so that the pawl 228 is separated from the ratchet wheel 227; when the door body 2 is opened, the second bevel gear 42 rotates reversely to move the transmission rod 43 away from the mounting groove 22, so that the pawl 228 is pressed against the ratchet wheel 227 again under the action of the second compression spring 229.
Referring to fig. 2 and 3, in order to enable the supporting wheel 225 to retract into the installation slot 22 when the door body 2 is closed, so as to avoid the supporting wheel 225 from affecting the closing of the door body 2, in combination with fig. 1, a threshold slope 32 is arranged below the door frame 3, the threshold slope 32 is fixed on the ground, during the closing process of the door body 2, when the supporting wheel 225 moves to just contact with the threshold slope 32, the pawl 228 just separates from the ratchet wheel 227, the supporting wheel 225 moves downwards into the installation slot 22 under the force of the threshold slope 32 when the door body 2 is continuously closed, and when the door body 2 is completely closed, the supporting wheel 225 completely enters into the installation slot 22, so that the supporting wheel 225 is completely accommodated; in order to enable the supporting wheel 225 to move along a fixed path when the door body 2 is opened and closed and reduce the probability of the supporting wheel 225 being blocked, the ground below the door frame 3 is provided with the slideway 5, the slideway 5 is arranged along the track of the supporting wheel 225 when the door body 2 is opened and closed, and after the door body 2 is opened, the supporting wheel 225 is in sliding fit in the slideway 5, so that the door body 2 can be opened and closed more smoothly; in order to keep the door 2 in a closed state after closing, a door lock 25 is provided to the door 2, and the door 2 can be kept in a closed state by fixing the positions of the door 2 and the door frame 3 by the door lock 25.
The working principle of the utility model is that when the door body 2 is opened, the first bevel gear 41 rotates the second bevel gear 42 to drive the transmission rod 43, so that the transmission rod 43 is separated from the pawl 228, and the pawl 228 can block the ratchet wheel 227, the supporting wheel 225 can extend out of the mounting groove 22 to abut against the ground, but the upward movement trend is blocked, so that the effect of providing upward supporting force for the door body 2 is realized; when the door body 2 is closed, the first bevel gear 41 rotates the second bevel gear 42 reversely to drive the transmission rod 43, so that the transmission rod 43 is pressed against the pawl 228, the pawl 228 is separated from the ratchet wheel 227, and the support wheel 225 is retracted into the mounting groove 22 under the force of the threshold slope 32, so that the door body 2 can be completely closed.
The embodiment of the present invention is a preferred embodiment of the present invention, which is not limited in this way to the protection scope of the present invention, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (8)
1. The utility model provides a reinforced concrete protective airtight door, is including installing door body (2) and door frame (3) on wall body (1), its characterized in that: the wall body (1) is fixed with a mounting seat (11), a connecting shaft (12) is fixedly mounted on the mounting seat (11), the door body (2) is hinged to the connecting shaft (12), a mounting groove (22) is formed in the bottom of the door body (2), a supporting wheel (225) is arranged in the mounting groove (22), and the supporting wheel (225) is connected with a driving device for the supporting wheel (225) to move up and down.
2. A reinforced concrete containment door as claimed in claim 1 wherein: the driving device comprises a circular rail (221) fixedly arranged in an installation groove (22), a rack (222) is fixed on a supporting wheel (225), the rack (222) is in sliding fit with the circular rail (221), a transmission gear (226) is rotatably supported in the installation groove (22), the transmission gear (226) is meshed with the rack (222), a ratchet wheel (227) is coaxially fixed on the transmission gear (226), a pawl (228) is rotatably supported in the installation groove (22), the pawl (228) is matched with the ratchet wheel (227), the pawl (228) is connected with a second pressure spring (229), one end of the second pressure spring (229) is fixed on the inner wall of the installation groove (22), the other end of the second pressure spring is fixed on the pawl (228), and a control device (4) for controlling the pawl (228) to be meshed with or separated from the ratchet wheel (227) is arranged in the door body (2).
3. A reinforced concrete containment door as claimed in claim 2 wherein: the control device (4) comprises a first bevel gear (41) coaxially fixed on the connecting shaft (12), a support groove (23) is formed in the door body (2), a second bevel gear (42) is rotatably supported in the support groove (23), the second bevel gear (42) is meshed with the first bevel gear (41), a key groove (421) is formed in the second bevel gear (42), a communicating hole (24) is formed in the door body (2), the communicating hole (24) is communicated with the support groove (23) and the mounting groove (22), a transmission rod (43) is arranged in the communicating hole (24), one end of the transmission rod (43) extends into the key groove (421), the other end of the transmission rod (43) extends into the mounting groove (22), a transmission key (431) is arranged at one end of the transmission rod (43) located in the key groove (421), and the transmission rod (43) is in sliding fit with the key groove (421) through the transmission key (, both the communicating hole (24) and the transmission rod (43) are provided with threads, and the transmission rod (43) is in threaded fit in the communicating hole (24).
4. A reinforced concrete containment door as claimed in claim 2 or 3 wherein: a first pressure spring (224) is sleeved on the round rail (221), one end of the first pressure spring (224) is fixed on the door body (2), and the other end of the first pressure spring (224) is fixed on the rack (222).
5. A reinforced concrete containment door as claimed in claim 2 or 3 wherein: a doorsill slope (32) is arranged below the door frame (3), and the doorsill slope (32) is fixed on the ground.
6. A reinforced concrete containment door as claimed in any one of claims 1 to 3 wherein: and a rubber pad (31) is arranged at the edge of the door frame (3).
7. A reinforced concrete containment door as claimed in any one of claims 1 to 3 wherein: the ground below the door frame (3) is provided with a slideway (5).
8. A reinforced concrete containment door as claimed in any one of claims 1 to 3 wherein: the door body (2) is provided with a door lock (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388797.1U CN210738397U (en) | 2019-08-24 | 2019-08-24 | Reinforced concrete protective airtight door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921388797.1U CN210738397U (en) | 2019-08-24 | 2019-08-24 | Reinforced concrete protective airtight door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210738397U true CN210738397U (en) | 2020-06-12 |
Family
ID=70983276
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921388797.1U Active CN210738397U (en) | 2019-08-24 | 2019-08-24 | Reinforced concrete protective airtight door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210738397U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963072A (en) * | 2021-02-01 | 2021-06-15 | 徐州宇旺人防工程防护设备有限公司 | Civil air defense engineering protective equipment |
| CN113513246A (en) * | 2021-07-20 | 2021-10-19 | 宜兴市诚鑫辐射防护器材有限公司 | Radiation-proof concrete shield door and construction process thereof |
-
2019
- 2019-08-24 CN CN201921388797.1U patent/CN210738397U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112963072A (en) * | 2021-02-01 | 2021-06-15 | 徐州宇旺人防工程防护设备有限公司 | Civil air defense engineering protective equipment |
| CN113513246A (en) * | 2021-07-20 | 2021-10-19 | 宜兴市诚鑫辐射防护器材有限公司 | Radiation-proof concrete shield door and construction process thereof |
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Address after: Wenyan Industrial Zone, Zhulou Township, Pingyuan demonstration area, Xinxiang City, Henan Province (southwest corner of the intersection of Jingsi road and Weiyi Road) Patentee after: Henan Jinxin civil defense (Group) Co., Ltd Address before: Wenyan Industrial Zone, Zhulou Township, Pingyuan demonstration area, Xinxiang City, Henan Province (southwest corner of the intersection of Jingsi road and Weiyi Road) Patentee before: Henan Jinxin protective equipment Co.,Ltd. |