CN211549442U - Concrete sealing door - Google Patents
Concrete sealing door Download PDFInfo
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- CN211549442U CN211549442U CN201922413945.7U CN201922413945U CN211549442U CN 211549442 U CN211549442 U CN 211549442U CN 201922413945 U CN201922413945 U CN 201922413945U CN 211549442 U CN211549442 U CN 211549442U
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Abstract
The utility model belongs to the technical field of the people's air defense door technique and specifically relates to a concrete sealing door is related to, including the wall body with set up in the internal door body of wall, be provided with locking device on the door body, the door body is connected with the wall body through locking device, has seted up the locking groove on the medial surface of wall body, locking device including be used for inserting the locking groove with the locking mechanism of wall body and door body closure, be used for driving the locking mechanism at the link gear of locking inslot motion and be used for driving the actuating mechanism of link gear motion, actuating mechanism sets up on the door body, the link gear sets up on actuating mechanism, locking mechanism sets up on the link gear. The door body is provided with the locking device, the driving mechanism drives the linkage mechanism to move and can drive the locking mechanism to move in the locking groove, so that the locking mechanism is inserted into the locking groove on the inner side face of the wall body, the door body is fixedly connected with the wall body, the locking mechanism is installed inside the wall body, the door body cannot be damaged from the outside of the wall body, and the protection effect is good.
Description
Technical Field
The utility model belongs to the technical field of the people's air defense door technique and specifically relates to a concrete sealing door is related to.
Background
At present, the civil air defense engineering comprises an outer wall, a buffer wall, an explosion door, a closed wall, a protective partition wall and the like, is mainly used for temporary shelters of civil air defense, wartime air defense command centers, communication centers, shelters and the like, and has three prevention functions of nuclear weapons, chemical weapons and biological weapons. The sealed door is the most important equipment in civil air defense engineering, the door leaf of the sealed door is formed by assembling and welding flat steel plates, # -shaped rib plates, ring beams and the like, and the door frame is of a channel steel and I-shaped steel combined frame structure. The tensioning device is a wedge-shaped sliding block, the door pivot is supported by a rolling bearing, the airtight door is a door capable of increasing air tightness, and the airtight door is made of wood, steel and the like.
The current chinese patent with publication number CN208236227U discloses a reinforced concrete protective airtight door, including the airtight door main part, inside reinforcing bar layer and the concrete layer of being provided with respectively of airtight door main part, and the reinforcing bar layer is located one side of concrete layer, one side of airtight door main part is connected with protective frame through the hinge, the front end surface of airtight door main part is provided with the ventilation window, in use, inside reinforcing bar layer and the concrete layer of being provided with respectively of airtight door main part, reinforcing bar layer and concrete layer all possess the advantage that structural strength is high, through kneading both together, the overall structure intensity of airtight door has been improved greatly, one side of airtight door main part is connected with protective frame through the hinge, the edge all has laminated rubber seal strip all around of airtight door main part, rubber seal strip can play good airtight effect when the door is closed.
The above prior art solutions have the following drawbacks: this reinforced concrete protective airtight door, because the hinge mount is in protective frame's outside, the hinge is the relatively weak part of protective airtight door, if destroy the back to the door body from the position of hinge, the door body will be opened very easily to the effect of protection is relatively poor, consequently, needs improve it.
SUMMERY OF THE UTILITY MODEL
Not enough to prior art existence, one of the purposes of the utility model is to provide a concrete sealing door, it is through being provided with locking device on the door body, and actuating mechanism during operation drives the link gear motion, can drive locking mechanism and move at the locking inslot to insert the locking mechanism in the locking inslot of the medial surface of wall body, with the door body and wall body fixed connection, locking mechanism installs the inside at the wall body, thereby can't destroy the door body from the wall body outside, the effect of protection is better.
The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme:
the utility model provides a concrete sealing door, includes the wall body and sets up the door body in the wall body, be provided with locking device on the door body, the door body is connected with the wall body through locking device, the locking groove has been seted up on the medial surface of wall body, locking device including be used for inserting the locking groove with the locking mechanism of wall body and door body closure, be used for driving the link gear of locking mechanism at the motion of locking inslot and be used for driving the actuating mechanism of link gear motion, actuating mechanism sets up on the door body, the link gear sets up on actuating mechanism, the locking mechanism sets up on the link gear.
By adopting the technical scheme, the driving mechanism is arranged on the door body, the driving mechanism is started to drive the linkage mechanism to move, so that the locking mechanism can be driven to move in the locking groove, when the locking mechanism moves into the locking groove, the door body and the wall body are fixedly locked, the locking device is arranged in the wall body, the door body cannot be damaged from the outside of the wall body, and the protection effect is better.
The present invention may be further configured in a preferred embodiment as: actuating mechanism includes rotatory hand wheel, worm and worm wheel, the fixed install bin I that is provided with on the door body, rotatory hand wheel is worn to locate in the install bin I, and a normal running fit of rotatory hand wheel and install bin, and the worm is fixed to be set up on rotatory hand wheel, and the both ends butt of worm on install bin I, the worm wheel butt is on the worm, and worm wheel and worm mesh mutually, wear to be equipped with the rotary rod in the worm wheel, link gear is fixed to be set up on the rotary rod.
Through adopting above-mentioned technical scheme, operating personnel rotates rotatory hand wheel, drives the worm at install bin internal rotation, drives the worm wheel and rotates, can drive the rotary rod and rotate to can drive link gear and rotate, the cover is equipped with the rotary supporting seat on the rotary rod, the rotary rod rotates with the rotary supporting seat and supports, through the setting of rotary supporting seat, can carry out fixed stay to the rotary rod, make the rotary rod can be better at the rotary supporting seat internal rotation simultaneously.
The present invention may be further configured in a preferred embodiment as: the cover is equipped with rotary supporting seat on the rotary rod, the rotary rod rotates with rotary supporting seat and supports.
Through adopting above-mentioned technical scheme, the cover is equipped with rotatory supporting seat on the rotary rod, through the setting of rotatory supporting seat, can carry out fixed stay to the rotary rod, makes the rotary rod can be better simultaneously at the internal rotation of rotatory supporting seat.
The present invention may be further configured in a preferred embodiment as: the linkage mechanism comprises a first bevel gear, a second bevel gear and a rotating rod, a second installation box is fixedly arranged on the door body, the bevel gear is sleeved on the rotating rod, the first bevel gear is coaxially fixed with the rotating rod, two supports of the bevel gear are abutted to the first bevel gear, the second bevel gear is meshed with the first bevel gear, a supporting portion is fixedly arranged on the bottom end of the second bevel gear, the supporting portion is abutted to the second installation box, the supporting portion is rotatably supported by the second installation box, the rotating rod is arranged in the second bevel gear in a penetrating mode, a threaded portion is arranged on the rotating rod, threads on the threaded portions at the two ends of the rotating rod are reverse threads, and the locking mechanism is arranged.
Through adopting above-mentioned technical scheme, when the rotary rod rotates, can drive bevel gear one and rotate, drive bevel gear two and rotate, rotate the in-process, support at two internal rotations of install bin through the supporting part of two bottoms of bevel gear to make bevel gear two can carry out effectual rotation, when bevel gear two rotates, drive the dwang and rotate, drive screw thread portion and rotate, when screw thread portion rotates, can drive locking mechanism and carry out the locking motion, the simple operation.
The present invention may be further configured in a preferred embodiment as: the locking mechanism comprises a movable pipe, a sliding seat and a locking rod, the movable pipe is sleeved on the threaded portion, the movable pipe is in threaded connection with the threaded portion, the sliding seat is fixedly arranged on the door body, the locking rod penetrates through the sliding seat, the locking rod is in sliding fit with the sliding seat, and the locking rod is fixedly arranged with the movable pipe.
Through adopting above-mentioned technical scheme, on screw thread portion was located to the movable tube cover, screw thread portion rotated, drove the movable tube simultaneous movement, and during the movable tube motion, can drive the closure rod and slide in the sliding seat, make the closure rod can insert the locking inslot in the wall body, realize the fixed locking between wall body and the door body, simple structure, simple operation.
The present invention may be further configured in a preferred embodiment as: the sliding seat is provided with a square groove, the locking rod is a square rod matched with the square groove, and the locking rod is in sliding fit with the square groove.
By adopting the technical scheme, the square groove is formed in the sliding seat, and when the movable pipe moves, the locking rod is the square rod and penetrates through the square groove, so that when the movable pipe moves, the locking rod can only be driven to slide in the square groove, and the situation that when the rotating rod rotates, the movable pipe and the locking rod are driven to rotate along with the rotating rod at the same time, and the sliding movement of locking between the door body and the wall body cannot be carried out is avoided.
The present invention may be further configured in a preferred embodiment as: the locking rod and the movable tube are both fixedly provided with limiting parts, and the limiting parts on the locking rod and the movable tube are arranged at two ends of the sliding seat.
Through adopting above-mentioned technical scheme, through the setting of the spacing portion on the activity pipe, when making the movable rod move on the dwang, can not follow screw thread portion slippage, when leading to the dwang motion, can't drive activity pipe and closure rod and carry out the closure operation between the door body and the wall body, simultaneously through the spacing portion on the closure rod, can avoid the closure rod to follow the slip in the sliding seat, when making the dwang rotate, drive activity pipe and closure rod and rotate simultaneously, can't carry out the sliding motion to the closure between the door body and the wall body.
The present invention may be further configured in a preferred embodiment as: the fixed connecting device that is provided with on the door body, connecting device includes mounting bracket, mount and pivot, the mount is fixed to be set up in the side of the door body, the mounting bracket is fixed to be set up in the medial surface of wall body, the through-hole has all been seted up on mounting bracket and the mount, in the through-hole was worn to locate by the pivot, and the cover was equipped with thrust bearing in the pivot, thrust bearing's both ends respectively butt between mounting bracket and mount.
Through adopting above-mentioned technical scheme, the mounting bracket is fixed to be set up in the medial surface of wall body, through the mounting bracket with a body fixed mounting on the medial surface of wall body, when needing to open the door body, the pulling door body rotates round the pivot, opens, through thrust bearing's setting, makes the rotation of the door body round the pivot, the operation is more convenient, rotate more high-efficient.
To sum up, the utility model discloses a following at least one useful technological effect:
1. the door body is provided with the locking device, when the driving mechanism works, the driving mechanism drives the linkage mechanism to move and can drive the locking mechanism to move in the locking groove, so that the locking mechanism is inserted into the locking groove on the inner side surface of the wall body, the door body is fixedly connected with the wall body, the locking mechanism is arranged in the wall body, the door body cannot be damaged from the outside of the wall body, and the protection effect is good;
2. the movable pipe is sleeved on the threaded portion, the movable pipe is driven to move simultaneously when the threaded portion rotates, and the locking rod can be driven to slide in the sliding seat when the movable pipe moves, so that the locking rod can be inserted into a locking groove in a wall body, the wall body and a door body are fixedly locked, and the structure is simple and the operation is convenient;
3. through the setting of the spacing portion on the movable tube, when the movable rod moves on the rotating rod, the movable rod cannot slip from the thread portion, when the rotating rod moves, the movable tube and the locking rod cannot be driven to lock the door body and the wall body, and meanwhile, through the spacing portion on the locking rod, the locking rod can be prevented from slipping from the sliding seat, when the rotating rod rotates, the movable tube and the locking rod are driven to rotate simultaneously, and the sliding movement of the locking between the door body and the wall body cannot be carried out.
Drawings
Fig. 1 is a schematic structural diagram of the present invention;
FIG. 2 is a schematic view showing a coupling structure of the door body and the coupling device;
FIG. 3 is an enlarged view of a portion of FIG. 2 at A;
fig. 4 is a schematic view showing the structure of the locking device.
Reference numerals: 1. a wall body; 2. a door body; 21. installing a first box; 22. a second installation box; 3. a locking device; 4. a locking mechanism; 41. a movable tube; 42. a sliding seat; 421. a square groove; 43. a locking lever; 44. a limiting part; 5. a linkage mechanism; 51. a first bevel gear; 52. a second bevel gear; 521. a support portion; 53. rotating the rod; 531. a threaded portion; 6. a drive mechanism; 61. rotating a hand wheel; 62. a worm; 63. a worm gear; 64. rotating the rod; 65. rotating the supporting seat; 7. a connecting device; 71. a mounting frame; 72. a fixed mount; 73. a rotating shaft; 74. and a thrust bearing.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Referring to fig. 1 and fig. 2, for the utility model discloses a concrete closedown door, including wall body 1 and the door body 2 that sets up in wall body 1, be provided with locking device 3 on the door body 2, the door body 2 is connected with wall body 1 through locking device 3, install the inboard of wall body 1 with the door body 2, then through locking device 3 with the door body 2 and wall body 1 between fixed locking, thereby can realize on wall body 1 with the locking of the door body 2, locking device 3 installs the inside at wall body 1, thereby can't destroy the door body 2 from wall body 1 outside, the effect of protection is better.
Referring to fig. 1 and 2, a locking groove is formed in the inner side surface of a wall 1, the locking device 3 includes a locking mechanism 4 inserted into the locking groove to lock the wall 1 and the door 2, a linkage mechanism 5 for driving the locking mechanism 4 to move in the locking groove, and a driving mechanism 6 for driving the linkage mechanism 5 to move, the driving mechanism 6 is disposed on the door 2, the linkage mechanism 5 is disposed on the driving mechanism 6, and the locking mechanism 4 is disposed on the linkage mechanism 5. When the door body 2 and the wall body 1 need to be fixedly locked, the driving mechanism 6 is started to drive the linkage mechanism 5 to move, so that the locking mechanism 4 can be driven to move in the locking groove, and when the locking mechanism 4 moves into the locking groove, the door body 2 and the wall body 1 are fixedly locked.
Referring to fig. 2 and 4, the driving mechanism 6 includes a rotating hand wheel 61, a worm 62 and a worm wheel 63, a first installation box 21 is fixedly disposed on the door body 2, the rotating hand wheel 61 penetrates through the first installation box 21, the rotating hand wheel 61 is rotationally matched with the first installation box 21, the worm 62 is fixedly disposed on the rotating hand wheel 61, two ends of the worm 62 are abutted to the first installation box 21, the worm wheel 63 is abutted to the worm 62, the worm wheel 63 is meshed with the worm 62, a rotating rod 64 penetrates through the worm wheel 63, and the linkage mechanism 5 is fixedly disposed on the rotating rod 64. When the door body 2 and the wall body 1 need to be fixedly locked, an operator rotates the rotary hand wheel 61 to drive the worm 62 to rotate in the first installation box 21 and drive the worm wheel 63 to rotate, and when the worm wheel 63 rotates, the rotary rod 64 can be driven to rotate, so that the linkage mechanism 5 can be driven to rotate. The rotating rod 64 is sleeved with a rotating support base 65, and the rotating rod 64 and the rotating support base 65 are rotatably supported. Through the setting of rotary support seat 65, can carry out fixed stay to rotary rod 64, make the rotary rod 64 can be better at the internal rotation of rotary support seat 65 simultaneously.
Referring to fig. 2 and 4, the linkage mechanism 5 includes a first bevel gear 51, a second bevel gear 52 and a rotating rod 53, the second door body 2 is fixedly provided with a second installation box 22, the first bevel gear 51 is sleeved on the rotating rod 64, the first bevel gear 51 and the rotating rod 64 are coaxially fixed, the second bevel gear 52 abuts against the first bevel gear 51, the second bevel gear 52 is meshed with the first bevel gear 51, a supporting portion 521 is fixedly provided at the bottom end of the second bevel gear 52, the supporting portion 521 abuts against the second installation box 22, and the supporting portion 521 and the second installation box 22 are rotatably supported. When the rotating rod 64 rotates, the first bevel gear 51 can be driven to rotate, the second bevel gear 52 is driven to rotate, and in the rotating process, the supporting part 521 at the bottom of the second bevel gear 52 is supported in the second mounting box 22 to rotate. The rotating rod 53 is arranged in the second bevel gear 52 in a penetrating mode, the rotating rod 53 is provided with a threaded portion 531, threads on the threaded portion 531 at two ends of the rotating rod 53 are reverse threads, and the locking mechanism 4 is arranged on the threaded portion 531. When the second bevel gear 52 rotates, the rotating rod 53 is driven to rotate, the threaded portion 531 is driven to rotate, and when the threaded portion 531 rotates, the locking mechanism 4 can be driven to perform locking movement.
Referring to fig. 2 and 4, the locking mechanism 4 includes a movable tube 41, a sliding seat 42 and a locking rod 43, and referring to fig. 3, the movable tube 41 is sleeved on the threaded portion 531, the movable tube 41 is in threaded connection with the threaded portion 531, the sliding seat 42 is fixedly disposed on the door body 2, the locking rod 43 is inserted into the sliding seat 42, the locking rod 43 is in sliding fit with the sliding seat 42, and the locking rod 43 is fixedly disposed with the movable tube 41. When the screw portion 531 rotates, the movable tube 41 is moved simultaneously. The sliding seat 42 is provided with a square groove 421, the locking rod 43 is a square rod matched with the square groove 421, and the locking rod 43 is in sliding fit with the square groove 421. When the movable tube 41 moves, the locking rod 43 is a square rod, and the locking rod 43 is inserted into the square groove 421, so that the movable tube 41 can only drive the locking rod 43 to slide in the square groove 421 when moving. Because the threads on the threaded portion 531 at the two ends of the rotating rod 53 are reverse threads, when the threaded portion 531 rotates, the movable tube 41 and the locking rod 43 can be driven to move close to or away from each other in the square groove 421, so that the two locking rods 43 in the vertical direction can move simultaneously, and when the movable tube 41 and the locking rod 43 move away from each other, the movable tube 41 and the locking rod 43 can be inserted into the locking groove in the wall body 1, so that the fixed locking between the door body 2 and the wall body 1 is completed. When the movable tube 41 and the locking rod 43 move close to each other in the square groove 421, the door body 2 and the wall body 1 are not locked, and the door body 2 can be opened.
Referring to fig. 3 and 4, the locking rod 43 and the movable tube 41 are both fixedly provided with a limiting portion 44, and the locking rod 43 and the limiting portion 44 on the movable tube 41 are provided at both ends of the sliding seat 42. Through the arrangement of the limiting portion 44 on the movable tube 41, when the movable rod 41 moves on the rotating rod 53, the movable rod 41 cannot slip from the thread portion 531, so that when the rotating rod 53 moves, the movable tube 41 and the locking rod 43 cannot be driven to perform the locking operation between the door body 2 and the wall body 1, and meanwhile, through the limiting portion 44 on the locking rod 43, the locking rod 43 can be prevented from slipping from the sliding seat 42, so that when the rotating rod 53 rotates, the movable tube 41 and the locking rod 43 are driven to simultaneously rotate, and the sliding movement for locking between the door body 2 and the wall body 1 cannot be performed.
Referring to fig. 2 and 3, in the use, in order to realize the rotation of the door body 2 on the wall body 1, make the door body 2 install on the medial surface of the wall body 1 simultaneously, the fixed connecting device 7 that is provided with on the door body 2, connecting device 7 includes mounting bracket 71, mount 72 and pivot 73, mount 72 is fixed to be set up in the side of the door body 2, mounting bracket 71 is fixed to be set up in the medial surface of the wall body 1, the through-hole has all been seted up on mounting bracket 71 and the mount 72, pivot 73 wears to locate in the through-hole, and the cover is equipped with thrust bearing 74 on the pivot 73, the both ends of thrust bearing 74 respectively butt between mounting bracket 71 and mount 72, and the inner wall and the. The door body 2 is fixedly mounted on the inner side surface of the wall body 1 through the mounting frame 71, and when the door body 2 needs to be opened, the door body 2 is pulled to rotate around the rotating shaft 73 to be opened. Through the setting of thrust bearing 74, make door body 2 round the rotation of pivot 73, the operation is more convenient, rotate more high-efficient.
The implementation principle of the embodiment is as follows: firstly, the door body 2 is fixedly installed on the inner side surface of the wall body 1 through the installation frame 71, when the door body 2 and the wall body 1 need to be fixedly locked, an operator rotates the rotary hand wheel 61 to drive the worm 62 to rotate in the first installation box 21 and drive the worm wheel 63 to rotate, and when the worm wheel 63 rotates, the rotary rod 64 can be driven to rotate in the rotary supporting seat 65 to drive the first bevel gear 51 to rotate and drive the second bevel gear 52 to rotate, and in the rotating process, the support part 521 at the bottom of the second bevel gear 52 is supported in the second installation box 22 to rotate. When the second bevel gear 52 rotates, the rotating rod 53 is driven to rotate, the threaded portion 531 is driven to rotate, and when the threaded portion 531 rotates, the movable tube 41 and the locking rod 43 can be driven to move close to or away from each other in the square groove 421, so that the two locking rods 43 in the vertical direction can move simultaneously, and when the movable tube 41 and the locking rods 43 move away from each other, the movable tube 41 and the locking rods can be inserted into the locking grooves in the wall body 1, and therefore the fixed locking between the door body 2 and the wall body 1 is completed. When the movable tube 41 and the locking rod 43 move close to each other in the square groove 421, the door body 2 and the wall body 1 are not locked, and the door body 2 can be opened.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, 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. A concrete airtight door comprises a wall body (1) and a door body (2) arranged in the wall body (1), it is characterized in that the door body (2) is provided with a locking device (3), the door body (2) is connected with the wall body (1) through the locking device (3), the inner side surface of the wall body (1) is provided with a locking groove, the locking device (3) comprises a locking mechanism (4) which is inserted into the locking groove to lock the wall body (1) and the door body (2), a linkage mechanism (5) which is used for driving the locking mechanism (4) to move in the locking groove and a driving mechanism (6) which is used for driving the linkage mechanism (5) to move, the driving mechanism (6) is arranged on the door body (2), the linkage mechanism (5) is arranged on the driving mechanism (6), and the locking mechanism (4) is arranged on the linkage mechanism (5).
2. The concrete sealing door of claim 1, wherein the driving mechanism (6) comprises a rotating hand wheel (61), a worm (62) and a worm wheel (63), a first installation box (21) is fixedly arranged on the door body (2), the rotating hand wheel (61) is arranged in the first installation box (21) in a penetrating manner, the rotating hand wheel (61) is in running fit with the first installation box (21), the worm (62) is fixedly arranged on the rotating hand wheel (61), two ends of the worm (62) are abutted against the first installation box (21), the worm wheel (63) is abutted against the worm (62), the worm wheel (63) is meshed with the worm (62), a rotating rod (64) is arranged in the worm wheel (63) in a penetrating manner, and the linkage mechanism (5) is fixedly arranged on the rotating rod (64).
3. The concrete sealing door as claimed in claim 2, wherein the rotating rod (64) is sleeved with a rotating support base (65), and the rotating rod (64) is rotatably supported with the rotating support base (65).
4. The concrete sealing door according to claim 3, wherein the linkage mechanism (5) comprises a first bevel gear (51), a second bevel gear (52) and a rotating rod (53), the door body (2) is fixedly provided with a second installation box (22), the first bevel gear (51) is sleeved on the rotating rod (64), the first bevel gear (51) and the rotating rod (64) are coaxially fixed, the second bevel gear (52) abuts against the first bevel gear (51), the second bevel gear (52) is meshed with the first bevel gear (51), a supporting part (521) is fixedly arranged at the bottom end of the second bevel gear (52), the supporting part (521) abuts against the second installation box (22), the supporting part (521) is rotatably supported with the second installation box (22), the rotating rod (53) is arranged in the second bevel gear (52) in a penetrating manner, and a threaded part (531) is arranged on the rotating rod (53), the threads on the thread portions (531) at the two ends of the rotating rod (53) are reverse threads, and the locking mechanism (4) is arranged on the thread portions (531).
5. The concrete sealing door according to claim 4, wherein the locking mechanism (4) comprises a movable pipe (41), a sliding seat (42) and a locking rod (43), the movable pipe (41) is sleeved on the threaded portion (531), the movable pipe (41) is in threaded connection with the threaded portion (531), the sliding seat (42) is fixedly arranged on the door body (2), the locking rod (43) is arranged in the sliding seat (42) in a penetrating manner, the locking rod (43) is in sliding fit with the sliding seat (42), and the locking rod (43) and the movable pipe (41) are fixedly arranged.
6. The concrete sealing door of claim 5, wherein the sliding seat (42) is provided with a square groove (421), the locking rod (43) is a square rod matched with the square groove (421), and the locking rod (43) is in sliding fit with the square groove (421).
7. The concrete sealing door of claim 6, wherein the locking rod (43) and the movable tube (41) are both fixedly provided with a limiting part (44), and the limiting parts (44) on the locking rod (43) and the movable tube (41) are arranged at two ends of the sliding seat (42).
8. The concrete sealing door of claim 7, characterized in that, the fixed connecting device (7) that is provided with on the door body (2), connecting device (7) include mounting bracket (71), mount (72) and pivot (73), mount (72) are fixed to be set up in the side of the door body (2), mounting bracket (71) is fixed to be set up in the medial surface of wall body (1), the through-hole has all been seted up on mounting bracket (71) and mount (72), pivot (73) are worn to locate in the through-hole, and the cover is equipped with thrust bearing (74) on pivot (73), the both ends of thrust bearing (74) respectively butt between mounting bracket (71) and mount (72).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413945.7U CN211549442U (en) | 2019-12-25 | 2019-12-25 | Concrete sealing door |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922413945.7U CN211549442U (en) | 2019-12-25 | 2019-12-25 | Concrete sealing door |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211549442U true CN211549442U (en) | 2020-09-22 |
Family
ID=72510815
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922413945.7U Active CN211549442U (en) | 2019-12-25 | 2019-12-25 | Concrete sealing door |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211549442U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282510A (en) * | 2020-10-26 | 2021-01-29 | 安徽隆宏人防工程防护设备有限公司 | People's air defense door blocking device |
| CN113638284A (en) * | 2021-07-26 | 2021-11-12 | 宁波华宇建设有限公司 | Concrete pavement structure and construction method thereof |
-
2019
- 2019-12-25 CN CN201922413945.7U patent/CN211549442U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112282510A (en) * | 2020-10-26 | 2021-01-29 | 安徽隆宏人防工程防护设备有限公司 | People's air defense door blocking device |
| CN112282510B (en) * | 2020-10-26 | 2021-07-27 | 安徽隆宏人防工程防护设备有限公司 | People's air defense door blocking device |
| CN113638284A (en) * | 2021-07-26 | 2021-11-12 | 宁波华宇建设有限公司 | Concrete pavement structure and construction method thereof |
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