CN213775108U

CN213775108U - Locking device for reinforced concrete protective closed door

Info

Publication number: CN213775108U
Application number: CN202022495980.0U
Authority: CN
Inventors: 徐友明
Original assignee: Anhui Longhong Civil Air Defense Engineering Protection Equipment Co ltd
Current assignee: Anhui Longhong Civil Air Defense Engineering Protection Equipment Co ltd
Priority date: 2020-10-30
Filing date: 2020-10-30
Publication date: 2021-07-23
Anticipated expiration: 2030-10-30

Abstract

The application relates to a locking device for a reinforced concrete protective airtight door, which comprises a supporting seat and a lock, wherein the supporting seat and the lock are arranged on the inner side surface of a door leaf, one side of the door leaf is hinged on a door frame, the inner side surface of the door leaf is provided with a plurality of locking grooves which are respectively positioned on two sides of the door leaf, the supporting seats are respectively arranged in the locking grooves, a fixing mechanism for fixing the supporting seat is arranged in each locking groove, and the end surface of one end, away from the door leaf, of each supporting seat is fixedly connected with a rotating shaft; the tool to lock includes go-between, tapered end and dwang, and the go-between rotates to be connected in the pivot, and the one end rigid coupling of tapered end is seted up on the door frame on the outer wall of go-between with tapered end mutually supported draw-in groove, the dwang rigid coupling on the outer wall of go-between, the one end orientation that the go-between was kept away from to the dwang is kept away from one side of tapered end, and the tip is provided with drive dwang pivoted actuating mechanism. This application has the effect that improves the security of people's air defense door.

Description

Locking device for reinforced concrete protective closed door

Technical Field

The application relates to the field of civil air defense doors, in particular to a locking device for a reinforced concrete protection airtight door.

Background

The reinforced concrete protective airtight doors are mostly civil air defense doors, the civil air defense doors are doors of entrances and exits of civil protection engineering, the classification of the civil air defense doors is more distinct, and the civil air defense doors comprise common single-leaf protective airtight doors, double-leaf protective airtight doors and airtight doors, and various civil air defense devices such as threshold single-leaf protective airtight doors, double-leaf protective airtight doors and airtight doors, the civil air defense is also called civil air defense, the civil air defense is an international common word, is a government actor and an organization crowd, and takes the activities of air defense, disaster resistance and relief measures, rescue actions are implemented, and disaster damage prevention and relief are realized, and the civil air defense doors belong to civil air defense protective devices.

The utility model discloses a china utility model is CN208220547U at present discloses a people's air defense door with shock wave function of fighting, including people's air defense door body, switching device and door frame, switching device inlays in the door frame, switching device includes the motor, the spout, inserted bar and gear one, motor output shaft even has electromagnetic clutch, the last switch pivot that is equipped with of electromagnetic clutch, gear one and switch pivot fixed connection, electromagnetic clutch's one end even has the carousel is kept away from in the switch pivot, the carousel is located the rear side of people's air defense door body, the outside of carousel is equipped with a plurality of telescopic links that are the circumference and distribute, the other end of telescopic link even has spacing ball, gear one meshes has the rack, the rack is fixed on the inserted bar, the rack is located the.

With respect to the related art in the above, the inventors consider that: above-mentioned scheme only locks people's air defense door with the inserted bar bottom the door leaf, and people's air defense door uses usually in adverse circumstances, only locks bottom the door leaf, and locking state is comparatively poor, damages easily when people's air defense door receives external destruction, is unfavorable for protecting people's safety in people's air defense door.

SUMMERY OF THE UTILITY MODEL

In order to improve the security of people's air defense door, this application provides a locking device for reinforced concrete protection airtight door.

The application provides a pair of reinforced concrete protection is blocking device for airtight door adopts following technical scheme:

a locking device for a reinforced concrete protective closed door comprises a supporting seat and a lock, wherein the supporting seat and the lock are installed on the inner side surface of a door leaf, one side of the door leaf is hinged to a door frame, a plurality of locking grooves are formed in the inner side surface of the door leaf and are respectively located on two sides of the door leaf, a plurality of supporting seats are arranged in the locking grooves respectively, a fixing mechanism used for fixing the supporting seat is arranged in each locking groove, and a rotating shaft is fixedly connected to the end surface, away from one end of the door leaf, of each supporting seat; the tool to lock includes go-between, tapered end and dwang, the go-between rotate connect in the pivot, the one end rigid coupling of tapered end in on the outer wall of go-between, seted up on the door frame with tapered end mutually supported draw-in groove, the dwang rigid coupling in on the outer wall of go-between, the dwang is kept away from the one end orientation of go-between is kept away from one side of tapered end, and the tip is provided with drive dwang pivoted actuating mechanism.

Through adopting above-mentioned technical scheme, when needs lock the people's air defense door, through drive actuating mechanism, go up the go-between rotation of axes on actuating mechanism drive tool to lock's the dwang, the tapered end also rotates along with the go-between, the tapered end becomes the horizontality by preceding vertical state, the tapered end gets into in the draw-in groove, make the door leaf fixed, because the tool to lock is a plurality of, and evenly distributed is in the both sides of door leaf, the fixed door leaf of tool to lock that comparatively passes through the door leaf bottom, utilize the fixed door leaf of a plurality of tool to lock, be favorable to improving the fixed strength of door leaf, make the people's air defense door be difficult for being destroyed, thereby can improve the security of people's air defense door.

Optionally, the number of the locking grooves is four, the four locking grooves are respectively close to four corners of the door leaf, the driving mechanism comprises a connecting rod, a rotating shaft and a first rocker, the connecting rod is arranged on two sides close to the vertical direction of the door leaf, and two ends of the connecting rod are respectively hinged to one ends, away from the connecting ring, of the two rotating rods on the same side of the door leaf; the rotating shafts are arranged on one sides of the connecting rods, which are far away from the other connecting rod, and are positioned between the two locks on the same side of the door leaf, the rotating shafts are rotatably connected in the door leaf, and one end of each rotating shaft extends out of the inner side wall of the door leaf; one end of the first rocker is fixedly connected to one end, located on the inner side of the door leaf, of the rotating shaft, the other end of the first rocker is located on one side, away from the rotating shaft, of the connecting rod and inclines towards the bottom end of the door leaf, and the first rocker is hinged to the connecting rod; the driving mechanism further comprises a driving assembly used for driving the rocker to rotate.

Through adopting above-mentioned technical scheme, when needs drive dwang rotates, through drive assembly, drive assembly drive rocker revolutes the axis of rotation and rotates, and the rocker drives the connecting rod and moves down again, connecting rod alright rotate with the dwang in two tool to locks of drive with one side, utilize the connecting rod can drive two tool to lock functions simultaneously, be favorable to improving operating personnel's convenience.

Optionally, a first rolling shaft is fixedly connected to a side surface of the first rocker, an axial direction of the first rolling shaft is perpendicular to the door leaf and is located at an end portion far away from one end of the rotating shaft, the driving assembly comprises a first connecting rod, a first waist-shaped hole matched with the first rolling shaft is formed in end portions of two ends of the first connecting rod, and a lifting mechanism for driving the first connecting rod to lift is arranged on the first connecting rod.

Through adopting above-mentioned technical scheme, when needs drive rocker one and rotate, through drive elevating system, elevating system drives the head rod and moves down, and the head rod of downstream can drive the rocker at both ends simultaneously and rotate around respective axis of rotation, utilizes the head rod alright with drive two rockers one to can further improve operating personnel's convenience.

Optionally, elevating system includes spur rack one, gear one and connecting axle one, the one end rigid coupling of spur rack one in on the head rod, gear one with spur rack intermeshing, a connecting axle coaxial coupling in on the gear one, the one end of connecting axle one pass gear one with the door leaf rotates and is connected.

Through adopting above-mentioned technical scheme, when needs drive head rod goes up and down, rotate through drive connecting axle one, connecting axle drive gear one rotates, and the gear drives a straight rack and goes up and down, straight rack one alright with drive head rod lift to can realize that the head rod goes up and down, and then can further improve the convenience of operating personnel operation.

Optionally, one end of the rotating shaft, which is far away from the first rocker, extends out of the outer side wall of the door leaf and is fixedly connected with a second rocker, and a rotating mechanism for driving the second rocker to rotate is arranged between the two second rockers.

Through adopting above-mentioned technical scheme, when needs lock in the people's air defense door outside, because the door leaf outside is provided with rocker two, revolute the axis rotation of axis of rotation through slewing mechanism drive rocker two, rocker two drive axis of rotation rotate, the axis of rotation drives rocker one and revolutes the axis rotation of axis of rotation, the rocker drives the connecting rod removal again and reciprocates, the connecting rod alright rotate with the dwang in two tool to locks of drive with one side, utilize the rocker two that are located the door leaf outside, alright lock the people's air defense door in order to realize at operating personnel outside the people's air defense door.

Optionally, the rigid coupling has roller bearing two on the side of rocker two, the axis direction of roller bearing two with the door leaf is perpendicular, and is located and keeps away from the tip of axis of rotation one end, slewing mechanism includes second connecting rod, spur rack two, gear two and connecting axle two, the tip at second connecting rod both ends all seted up with the waist type hole two of roller bearing two mutually supporting, the one end tip rigid coupling of spur rack two in on the second connecting rod, the vertical setting of spur rack two, gear two with spur rack two intermeshing, two coaxial coupling of connecting axle in gear two is last, the one end of connecting axle two is passed gear two with the door leaf rotates to be connected.

Through adopting above-mentioned technical scheme, when two rotation of drive rocker need, rotate through drive connecting axle two, two drive gear two of connecting axle rotate, and two drive spur rack two of gear reciprocate, and spur rack two drives the second connecting rod again and reciprocates, and two rocker two of second connecting rod drive rotate to can realize the rotation of rocker two, and then can improve the convenience of operating personnel operation.

Optionally, a spring groove is formed in a side wall of the lock groove, the fixing mechanism includes a clamping plate, a clamping block and an elastic spring, the clamping plate is fixedly connected to an end face of the support base, the end face is far away from one end of the rotating shaft, and the clamping plate is located in the lock groove and abuts against the bottom face of the lock groove; the clamping block is arranged in the spring groove, the end part of one end of the clamping block extends out of the spring groove, the end part of the clamping block inclines, the inclined plane of the end part of the clamping block faces to one side far away from the bottom surface of the lock groove, the side face, far away from the bottom surface of the lock groove, of the clamping plate is abutted to the clamping block, and the elastic spring is fixedly connected between the bottom surface of the spring groove and one end, close to the bottom surface of the spring groove, of the clamping block.

By adopting the technical scheme, when the supporting seat is installed, the clamping plate on the supporting seat is aligned to the locking groove, the clamping plate is pressed downwards due to the inclined end part of the clamping block, the clamping block is extruded by the clamping plate to move towards the spring groove, the clamping plate is continuously pressed downwards until the clamping plate is abutted against the bottom surface of the locking groove, at the moment, the clamping block is ejected out of the spring groove under the action of elastic force of the elastic spring, and the clamping block is abutted against the side surface of the clamping plate, which is far away from the bottom surface of the locking groove, so that the supporting seat can be fixed; when the supporting seat is required to be detached, the clamping block is moved towards the spring groove through the drive control assembly, when the clamping block is completely moved into the spring groove, the clamping block is released from controlling the clamping plate, and therefore the supporting seat can be detached.

Optionally, a pull rod groove is formed in the inner wall of one side, close to the inner side of the door leaf, of the spring groove, a pull rod block is arranged in the pull rod groove, one end of the pull rod block is fixedly connected to the side face, close to the inner side of the door leaf, of the fixture block, and the pull rod block penetrates through the pull rod groove and extends out of the door leaf.

Through adopting above-mentioned technical scheme, when the supporting seat is dismantled to needs, keep away from each other through two pull rod pieces of pulling control assembly, the pull rod piece drives the fixture block and removes the fixture block to the removal of spring inslot to can dismantle the supporting seat, and then can improve the convenience of operating personnel operation.

In summary, the present application includes at least one of the following beneficial technical effects:

when the civil air defense door needs to be locked, the driving mechanism is driven to drive the connecting ring on the rotating rod of the lock to rotate around the rotating shaft, the lock head also rotates along with the connecting ring, the lock head is changed into a horizontal state from a previous vertical state, and the lock head enters the clamping groove to fix the door leaf;

when the rotating rod needs to be driven to rotate, the driving assembly is driven to drive the rocker to rotate around the rotating shaft once, the rocker drives the connecting rod to move downwards again, the connecting rod can drive the rotating rod of the two locksets on the same side to rotate, the two locksets can be driven to operate simultaneously by the connecting rod, and convenience of operators is improved;

when the supporting seat is installed, the clamping plate on the supporting seat is aligned to the locking groove, the clamping plate is pressed downwards due to the fact that the end portion of the clamping block inclines, the clamping block is extruded by the clamping plate to move towards the spring groove, the clamping plate is pressed downwards continuously until the clamping plate is abutted against the bottom surface of the locking groove, the clamping block is ejected out of the spring groove under the action of elastic force of the elastic spring at the moment, the clamping block is abutted against the side face of the clamping plate, which is far away from the bottom surface of the locking groove, and therefore the supporting seat can be fixed; when the supporting seat is required to be detached, the clamping block is moved towards the spring groove through the drive control assembly, when the clamping block is completely moved into the spring groove, the clamping block is released from controlling the clamping plate, and therefore the supporting seat can be detached.

Drawings

Fig. 1 is a schematic structural view of a locking device according to an embodiment of the present application.

Fig. 2 is a schematic structural view of another perspective of the locking device according to the embodiment of the present application.

Fig. 3 is an enlarged view of a portion a in fig. 1, mainly illustrating the fixing mechanism.

Description of reference numerals: 1. a door leaf; 11. a supporting seat; 12. a lock; 121. a connecting ring; 122. a lock head; 123. rotating the rod; 13. locking the groove; 131. a spring slot; 132. a pull rod groove; 14. a rotating shaft; 15. a rocker II; 151. a second rolling shaft; 2. a door frame; 21. a card slot; 3. a fixing mechanism; 301. a pull rod block; 31. clamping a plate; 32. a clamping block; 33. an elastic spring; 4. a drive mechanism; 41. a connecting rod; 42. a rotating shaft; 43. a first rocker; 431. a first rolling shaft; 44. a drive assembly; 441. a first connecting rod; 4411. a waist-shaped hole I; 5. a lifting mechanism; 51. a first straight rack; 52. a first gear; 53. a first connecting shaft; 531. a first hand wheel; 6. a rotating mechanism; 61. a second connecting rod; 611. a second waist-shaped hole; 62. a second straight rack; 63. a second gear; 64. a second connecting shaft; 641. and a second hand wheel.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses a locking device for a reinforced concrete protection airtight door. Referring to fig. 1, the airtight door includes door frame 2 and door leaf 1, door frame 2 is the frame type, door leaf 1 is the cuboid, the side of door leaf 1 one side articulates on door frame 2, blocking device includes supporting seat 11 and tool to lock 12, four locked grooves 13 have been seted up on the medial surface of door leaf 1, four locked grooves 13 averagely divide into two sets ofly, one of them is organized and is located the side of being close to door leaf 1 and door frame 2 articulated one side, another group is located the side of being close to door leaf 1 and keeping away from one side articulated with the door frame, two locked grooves 13 in every group are close to the bottom on the top of door leaf 1 respectively.

Referring to fig. 1, the supporting seat 11 is a cylinder, the number of the supporting seats 11 is four, and the supporting seats 11 are respectively arranged in four locking grooves 13, the axial direction of the supporting seat 11 is perpendicular to the inner side surface of the door leaf 1, a fixing mechanism 3 for fixing the supporting seat 11 is arranged in the locking groove 13, a rotating shaft 14 is vertically and fixedly connected to the end surface of the supporting seat 11 far away from one end of the door leaf 1, and the diameter of the rotating shaft 14 is smaller than that of the supporting seat 11; tool to lock 12 is four and sets up respectively on four supporting seats 11, tool to lock 12 includes go-between 121, tapered end 122 and dwang 123, go-between 121 is the ring form, go-between 121 rotates to be connected on pivot 14, tapered end 122 is cylindricly, the one end rigid coupling of tapered end 122 is on the outer wall of go-between 121, tapered end 122 keeps away from the tip of go-between 121 one end and is the round platform form, seted up on door frame 2 with tapered end 122 mutually supporting draw-in groove 21, draw-in groove 21 is the cuboid, dwang 123 is the cuboid, the one end rigid coupling of dwang 123 is on the outer wall of go-between 121, and with contained angle between the tapered end 122 becomes the obtuse angle, the contained angle can be 120 in concrete implementation, the one end that go-between 121 was kept away from to dwang 123 is towards the bottom of door leaf 1, and the tip is provided with drive dwang 123 pivoted actuating mechanism 4.

Referring to fig. 1, the driving mechanism 4 includes a connecting rod 41, a rotating shaft 42 and a first rocker 43, the connecting rod 41 is rectangular and long, the connecting rod 41 is disposed on both sides of the door leaf 1 in the vertical direction, and both ends of the connecting rod 41 are respectively hinged to one ends of the two rotating rods 123 on the same side of the door leaf 1, which are far away from the connecting ring 121; one side of each connecting rod 41, which is far away from the other connecting rod 41, is provided with a rotating shaft 42, the rotating shafts 42 are rotatably connected to the door leaf 1, and one end of each rotating shaft 42 extends out of the inner side wall of the door leaf 1 and is positioned in the middle of the two locksets 12 on the same side of the door leaf 1; the first rocker 43 is rectangular and long, one end of the first rocker 43 is fixedly connected to one end, located on the inner side face of the door leaf 1, of the rotating shaft 42, the other end of the first rocker 43 is located on one side, away from the rotating shaft 42, of the connecting rod 41, and the first rocker 43 is hinged to the middle position of the side face, away from the door leaf 1, of the connecting rod 41; the driving mechanism 4 further comprises a driving assembly 44 for driving the rocker-one 43 to rotate.

Referring to fig. 1, a first rolling shaft 431 is fixedly connected to a side surface of the first rocker 43 close to the door leaf 1, the first rolling shaft 431 is located at an end portion of the first rocker 43 far from the rotating shaft 42, the driving assembly 44 includes a first connecting rod 441, the first connecting rod 441 is rectangular and long, the first connecting rod 441 is horizontally arranged, a first waist-shaped hole 4411 matched with the first rolling shaft 431 is formed in end portions of two ends of the first connecting rod 441, and a lifting mechanism 5 for driving the first connecting rod 441 to lift is arranged in the middle of the first connecting rod 441.

Referring to fig. 1, the lifting mechanism 5 includes a first spur rack 51, a first gear 52 and a first connecting shaft 53, one end of the first spur rack 51 is vertically and fixedly connected to the bottom surface of the first connecting rod 441 and is located at the middle position of the first connecting rod 441, and teeth of the first spur rack 51 are located on the side surface of the first spur rack 51 away from the hinged position of the door leaf 1; the first gear 52 is arranged on the bottom surface of the first connecting rod 441 and is meshed with the first straight rack 51; the first connecting shaft 53 is coaxially connected to the first gear 52, one end of the first connecting shaft 53 penetrates through the first gear 52 to be rotatably connected with the door leaf 1, and the other end of the first connecting shaft 53 is fixedly connected with a first hand wheel 531.

When the civil air defense door is locked at the inner side of the civil air defense door, the first hand wheel 531 is rotated, the first hand wheel 531 drives the first connecting shaft 53 to rotate, the first connecting shaft 53 drives the first gear 52 to rotate, the first gear 52 drives the first spur rack 51 to descend, the first spur rack 51 drives the first connecting rod 441 to descend, the first connecting rod 441 drives the first rockers 43 at two sides to rotate around the rotating shaft 42, the first rocker 43 drives the connecting rod 41 to move downwards, the connecting rod 41 moving downwards can drive the rotating rod 123 in the two locksets 12 at the same side to rotate around the rotating shaft 14, the connecting ring 121 on the rotating rod 123 rotates around the rotating shaft 14, the tapered end 122 also rotates along with the connecting ring 121, the tapered end 122 is changed into a horizontal state from the previous vertical state, the tapered end 122 enters the clamping groove 21, so that the door leaf 1 is fixed, the convenience of operation of an operator is improved by utilizing the driving mechanism 4 and the lifting mechanism 5, and the four locksets 12, compared with the fixed door leaf 1 with a single lockset 12, the fixed door leaf 1 with four locksets 12 is beneficial to improving the fixing strength of the door leaf 1, so that the civil air defense door is not easy to be damaged, and the safety of the civil air defense door can be improved.

Referring to fig. 2, one end of the rotating shaft 42, which is far away from the rocker one 43, extends out of the outer side wall of the door leaf and is fixedly connected with a rocker two 15, the rocker two 15 is a cuboid, one ends of the two rocker two 15, which are far away from the rotating shaft 42, are close to each other, one end of the rocker two 15, which is far away from the rotating shaft 42, is provided with a rotating mechanism 6 for driving the rocker two 15 to rotate, the side surface of the rocker two 15, which is close to one side of the door leaf 1, is vertically and fixedly connected with a roller two 151 and is located at the end part, which is far away from one end of the rotating shaft 42, the rotating mechanism 6 comprises a second connecting rod 61, a straight rack two 62, a gear two 63 and a connecting shaft two 64, the second connecting rod 61 is a cuboid, and waist-shaped holes two 611 matched with the roller two 151 are formed in the end parts at the two ends of the second connecting rod 61; the second straight rack 62 is vertically arranged in the middle of the two rockers 15 and close to the bottom end of the door leaf 1, teeth of the second straight rack 62 are positioned on the side surface of the second straight rack 62 far away from the hinged part of the door leaf 1, and the end surface of one end of the second straight rack 62 is fixedly connected to the middle of the second connecting rod 61; the second gear 63 is arranged on the bottom surface of the second connecting rod 61 and is meshed with the second spur rack 62, the second connecting shaft 64 is coaxially connected to the second gear 63, one end of the second connecting shaft 64 penetrates through the second gear 63 to be rotatably connected with the door leaf 1, and the other end of the second connecting shaft 64 is fixedly connected with a second hand wheel 641.

When the civil air defense door needs to be locked outside the civil air defense door, the second hand wheel 641 is rotated to drive the second connecting shaft 64 to rotate, the second connecting shaft 64 drives the second gear 63 to rotate, the second gear 63 drives the second spur rack 62 to move downwards, the second spur rack 62 drives the second connecting rod 61 to move downwards, the second connecting rod 61 drives the second rocker 15 to rotate, the second rocker 15 drives the rotating shaft 42 to rotate, the rotating shaft 42 drives the first rocker 43 to rotate around the axis of the rotating shaft 42, the first rocker 43 drives the connecting rod 41 to move downwards, the connecting rod 41 can drive the rotating rod 123 in the two locksets 12 at the same side to rotate, the civil air defense door can be locked outside the civil air defense door, and the convenience in operation of operators can be improved by using the rotating mechanism 6.

Referring to fig. 3, the two symmetrical side walls of the locking groove 13 are both provided with spring grooves 131, the two spring grooves 131 are horizontally provided, the fixing mechanism 3 comprises a clamping plate 31, an elastic spring 33 and a clamping block 32, the clamping plate 31 is a rectangular thin plate, the side surface of one side of the clamping plate 31 is fixedly connected to the end surface of one end of the supporting seat 11 close to the door leaf 1, the clamping plate 31 is mutually matched with the locking groove 13, and the clamping plate 31 is abutted to the bottom surface of the locking groove 13; a plurality of elastic springs 33 are provided, the elastic springs 33 are evenly divided into two groups, and one end of each group of elastic springs 33 is fixedly connected to the bottom surface of the spring groove 131; the two fixture blocks 32 are rectangular thin plates, the two fixture blocks 32 are respectively arranged in the spring groove 131, the end surface of one end of each fixture block 32 is fixedly connected to one end of each group of elastic springs 33 away from the bottom surface of the spring groove 131, the other end of each fixture block 32 extends out of the spring groove 131, the end surface is inclined, the inclined surface of the end part of each fixture block 32 faces to one side away from the bottom surface of the locking groove 13, and the side surface of one side of the fixture plate 31 away from the bottom surface of the locking groove 13 is in contact with the fixture block 32; the inner wall of the spring groove 131 close to the inner side of the door leaf 1 is provided with a pull rod groove 132 communicated with the inner side of the door leaf 1, one end of the fixture block 32 close to the elastic spring 33 is provided with a pull rod block 301, the end surface of one end of the pull rod block 301 is fixedly connected to the side surface of one side of the fixture block 32 close to the inner side of the door leaf 1, and the other end of the pull rod block 341 extends out of the pull rod groove 132.

When the supporting seat 11 needs to be installed, the clamping plate 31 on the supporting seat 11 is aligned with the locking groove 13, the clamping plate 31 is pressed downwards due to the inclined end of the clamping block 32, the clamping block 32 is extruded by the clamping plate 31 to move into the spring groove 131, the clamping plate 31 is continuously pressed downwards until the clamping plate 31 abuts against the bottom surface of the locking groove 13, at the moment, the clamping block 32 is ejected out of the spring groove 131 under the action of the elastic force of the elastic spring 33, and the clamping block 32 abuts against the side surface of the clamping plate 31 on the side far away from the bottom surface of the locking groove 13, so that the supporting seat 11 can be fixed; when supporting seat 11 needs to be disassembled, two pulling rod blocks 301 which are pulled are far away from each other, the pulling rod blocks 301 drive the clamping block 32 to move in the spring groove 131, and the clamping block 32 is released from controlling the clamping plate 31, so that the supporting seat 11 can be disassembled, and the operation convenience of operators can be improved.

The implementation principle of the locking device for the reinforced concrete protection closed door in the embodiment of the application is as follows: when the man-defense door is locked, the hand wheel 531 is rotated, the hand wheel 531 drives the connecting shaft 53 to rotate, the connecting shaft 53 drives the gear 52 to rotate, the gear 52 drives the spur rack 51 to descend, the spur rack 51 drives the first connecting rod 441 to descend, the first connecting rod 441 drives the rocker rods 43 at two sides to rotate around the rotating shaft 42, the rocker rod 43 drives the connecting rod 41 to move downwards, the connecting rod 41 moving downwards can drive the rotating rod 123 in the two locksets 12 at the same side to rotate around the rotating shaft 14, the connecting rings 121 on the rotating rod 123 rotate around the rotating shaft 14, the lock heads 122 also rotate along with the connecting rings 121, the lock heads 122 are changed into a horizontal state from a previous vertical state, the lock heads 122 enter the clamping grooves 21, so that the door leaf 1 is fixed, the operation convenience of an operator is improved by utilizing the driving mechanism 4 and the lifting mechanism 5, and because the four locksets 12 are used, the door leaf 1 is fixed through the bottom end 12 of the door leaf lockset, utilize four tool to lock 12 fixed door leaf 1, be favorable to improving the fixed intensity of door leaf 1 for the people's air defense door is difficult to be destroyed, thereby can improve the security of people's air defense door.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides a reinforced concrete protection is blocking device for airtight door which characterized in that: the door comprises a supporting seat (11) and a lock (12) which are arranged on the inner side surface of a door leaf (1), one side of the door leaf (1) is hinged to a door frame (2), a plurality of locking grooves (13) are formed in the inner side surface of the door leaf (1) and are respectively positioned on two sides of the door leaf (1), the supporting seats (11) are arranged in the locking grooves (13) respectively, a fixing mechanism (3) for fixing the supporting seats (11) is arranged in each locking groove (13), and a rotating shaft (14) is fixedly connected to the end surface of one end, far away from the door leaf (1), of each supporting seat (11); tool to lock (12) are including go-between (121), tapered end (122) and dwang (123), go-between (121) rotate connect in pivot (14) are last, the one end rigid coupling of tapered end (122) in on the outer wall of go-between (121), seted up on door frame (2) with tapered end (122) mutually supported draw-in groove (21), dwang (123) rigid coupling in on the outer wall of go-between (121), dwang (123) are kept away from the one end orientation of go-between (121) is kept away from one side of tapered end (122), and the tip is provided with drive dwang (123) pivoted actuating mechanism (4).

2. The locking device for the reinforced concrete protective airtight door according to claim 1, wherein: the number of the locking grooves (13) is four, the four locking grooves (13) are respectively close to four corners of the door leaf (1), the driving mechanism (4) comprises connecting rods (41), rotating shafts (42) and rocking rods (43), the connecting rods (41) are arranged on two sides of the door leaf (1) in the vertical direction, and two ends of each connecting rod (41) are respectively hinged to one end, away from the connecting ring (121), of each rotating rod (123) on the same side of the door leaf (1); the rotating shaft (42) is arranged on one side, away from the other connecting rod (41), of each connecting rod (41) and is positioned between the two locks (12) on the same side of the door leaf (1), the rotating shaft (42) is rotatably connected into the door leaf (1), and one end of the rotating shaft (42) extends out of the inner side wall of the door leaf (1); one end of the rocker I (43) is fixedly connected to one end, located on the inner side of the door leaf (1), of the rotating shaft (42), the other end of the rocker I (43) is located on one side, away from the rotating shaft (42), of the connecting rod (41) and inclined towards the bottom end of the door leaf (1), and the rocker I (43) is hinged to the connecting rod (41); the driving mechanism (4) further comprises a driving assembly (44) for driving the first rocker (43) to rotate.

3. The locking device for the reinforced concrete protective airtight door according to claim 2, wherein: the side face of the rocker I (43) is fixedly connected with a roller I (431), the axis direction of the roller I (431) is perpendicular to the door leaf (1) and is located at the end part far away from one end of the rotating shaft (42), the driving component (44) comprises a first connecting rod (441), waist-shaped holes I (4411) matched with the roller I (431) are formed in the end parts of the two ends of the first connecting rod (441), and a lifting mechanism (5) for driving the first connecting rod (441) to lift is arranged on the first connecting rod (441).

4. The locking device for the reinforced concrete protective airtight door according to claim 3, wherein: elevating system (5) include spur rack (51), gear (52) and connecting axle (53), the one end rigid coupling of spur rack (51) in on head rod (441), gear (52) with spur rack (51) intermeshing, connecting axle (53) coaxial coupling in on gear (52), the one end of connecting axle (53) is passed gear (52) with door leaf (1) rotates and is connected.

5. The locking device for the reinforced concrete protective airtight door according to claim 4, wherein: one end of the rotating shaft (42), which is far away from the rocker I (43), extends out of the outer side wall of the door leaf (1) and is fixedly connected with a rocker II (15), and a rotating mechanism (6) for driving the rocker II (15) to rotate is arranged between the two rocker II (15).

6. The locking device for the reinforced concrete protective airtight door according to claim 5, wherein: a second rolling shaft (151) is fixedly connected to the side surface of the second rocker (15), the axial direction of the second rolling shaft (151) is vertical to the door leaf (1), and is positioned at the end part far away from one end of the rotating shaft (42), the rotating mechanism (6) comprises a second connecting rod (61), a second spur rack (62), a second gear (63) and a second connecting shaft (64), the end parts of the two ends of the second connecting rod (61) are respectively provided with a second waist-shaped hole (611) matched with the second rolling shaft (151), one end part of the second straight rack (62) is fixedly connected to the second connecting rod (61), the second spur rack (62) is vertically arranged, the second gear (63) is meshed with the second spur rack (62), the second connecting shaft (64) is coaxially connected to the second gear (63), and one end of the second connecting shaft (64) penetrates through the second gear (63) to be rotatably connected with the door leaf (1).

7. The locking device for the reinforced concrete protective airtight door according to claim 1, wherein: the side wall of the lock groove (13) is provided with a spring groove (131), the fixing mechanism (3) comprises a clamping plate (31), a clamping block (32) and an elastic spring (33), the clamping plate (31) is fixedly connected to the end face of one end, away from the rotating shaft (14), of the supporting seat (11), and the clamping plate (31) is located in the lock groove (13) and is abutted to the bottom face of the lock groove (13); the clamping block (32) is arranged in the spring groove (131), the end part of one end of the clamping block (32) extends out of the spring groove (131) and is inclined, the inclined surface of the end part of the clamping block (32) faces to one side far away from the bottom surface of the lock groove (13), the side surface of the clamping plate (31) far away from one side of the bottom surface of the lock groove (13) is abutted against the clamping block (32), and the elastic spring (33) is fixedly connected between the bottom surface of the spring groove (131) and one end, close to the bottom surface of the spring groove (131), of the clamping block (32).

8. The locking device for the reinforced concrete protective airtight door according to claim 7, wherein: a pull rod groove (132) is formed in the inner wall, close to the inner side of the door leaf (1), of the spring groove (131), a pull rod block (301) is arranged in the pull rod groove (132), one end of the pull rod block (301) is fixedly connected to the side face, close to the inner side of the door leaf (1), of the fixture block (32), and the pull rod block (301) penetrates through the pull rod groove (132) and extends out of the door leaf (1).