Locking seat for anti-seismic civil air defense door

Abstract

The utility model relates to the field of anti-seismic civil air defense doors, discloses a locking seat for an anti-seismic civil air defense door, and solves the problem that a limiting plate of an existing locking seat for an anti-seismic civil air defense door is poor in automatic sliding effect. Through the rack, the gear, the rotating rod, the fixing plate and the stay wire, when the pressing block moves upwards, the rack at one end is driven to move upwards, the rack is meshed with the gear, the gear drives the rotating rod to rotate, the two ends of the rotating rod are movably connected with the fixing plate, the fixing plate is connected with the pressing block, and the rotating rod drives the stay wire to pull upwards. The middle of the pull wire is wound at a fixed point through the winding shaft, the winding shaft is movably connected with the lock seat, the pull wire drives the limiting plate connected with the other end to slide towards one end, the limiting plate slides to one side through linkage when the pressing block completes upward movement, the lock sleeve is not pressed, manual operation is not needed, and operation convenience and efficiency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake-resistant civil air defense doors, in particular to a locking seat for earthquake-resistant civil air defense doors. Background Art

[0002] Civil defense doors are the doors at the entrances and exits of civil defense projects. Civil defense doors include ordinary single-leaf and double-leaf protective closed doors and closed doors, movable threshold single-leaf and double-leaf protective closed doors and closed doors, etc. When closing the civil defense door, the hand wheel on the door leaf is often rotated to move the lock head on the door leaf up and down, so that it can be inserted into the lock hole on the locking seat fixed on the wall to achieve the locking of the civil defense door.

[0003] After searching, the existing Chinese patent CN220247838U discloses a civil air defense door locking seat, including a lock seat, a lock sleeve and a mounting structure, wherein the mounting structure includes a clamping plate symmetrically arranged at the upper end of the lock seat, the clamping plate is arranged at a position that does not affect the upward movement of the lock sleeve, the clamping plate includes a horizontal plate and a vertical plate portion, the vertical plate is inserted at the upper end of the lock seat, and a limit plate is slidably arranged at the position of the gap between the horizontal plate of the clamping plate and the upper end of the lock seat, and the lower end of the limit plate conflicts with the upper end of the lock sleeve. The utility model is provided with a lock seat, when the lock head and other structures of the civil air defense door fail and cannot be smoothly separated from the lock hole, the clamping plate is driven to move upward by turning on the motor, and then the limit plate is slid to a position where it does not contact the lock sleeve, and then the support plate is pushed upward by the electric push rod, thereby driving the lock sleeve to move upward until the lock sleeve is separated from the mounting groove of the lock seat, at which time the lock head is smoothly separated from the lock hole without disassembling the lock seat.

[0004] The above patent facilitates the lock head to disengage from the lock hole by setting up a lifting drive structure, but there are still some problems during operation: the above-mentioned limit plate requires additional manual sliding work, and manual operation increases the possibility of human error, such as improper operation, forgetting to operate or delayed operation, which may cause the system to fail to work as expected. Compared with automated or semi-automated systems, manually sliding the limit plate usually takes more time, which may result in the loss of valuable time in an emergency. Utility Model Content

[0005] The utility model aims to provide a locking seat for earthquake-resistant civil air defense doors. The device is adopted to work, thereby solving the problem that the automatic sliding effect of the limiting plate of the locking seat for earthquake-resistant civil air defense doors is poor.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking seat for earthquake-resistant civil defense doors, comprising a locking seat, a groove provided inside the locking seat, a lock sleeve arranged inside the groove, a limit plate placed on the top of the lock sleeve, an electric push rod arranged inside the groove, and a support plate arranged on the top of the electric push rod, a lifting structure is arranged on the top of the locking seat, and a pulling structure is arranged inside the locking seat;

[0007] The lifting structure includes a top plate arranged above the lock seat, a motor arranged at the bottom end of the top plate, a driving rod arranged at the output end of the motor, a ball screw arranged at one end of the driving rod, a belt sleeved on the surface of the driving rod, a threaded sleeve threadedly connected to the surface of the ball screw, and a clamping block arranged at one end of the threaded sleeve.

[0008] Furthermore, one end of the top plate is movably connected to a driven rod, and two groups of ball screws and threaded sleeves are symmetrically arranged, and one group of ball screws is connected to the driven rod.

[0009] Furthermore, a fixing plate is provided at one end of the clamping block, the rotating rod is movably connected to the fixing plate, one end of the pull wire is connected to the limiting plate, one end of the limiting plate is provided with a spring, and the spring is connected to the lock seat.

[0010] Furthermore, a limiting structure is provided on one side of the top plate, and the limiting structure includes a connecting rod provided at the bottom end of the top plate, and a fixing shell is provided at one end of the connecting rod.

[0011] Furthermore, a screw is movably connected inside the fixed shell, and the surface of the screw is a bidirectional thread.

[0012] Furthermore, a telescopic rod is provided at one end of the screw rod, and a rotating handle is provided at one end of the telescopic rod.

[0013] Furthermore, a first magnetic ring is disposed at one end of the rotating handle, and a second magnetic ring is disposed at one end of the fixed shell, and the first magnetic ring and the second magnetic ring attract each other with opposite poles.

[0014] Furthermore, the surface of the screw is threadedly connected with a movable plate, and two groups of movable plates are provided. The two groups of movable plates are symmetrically distributed, and one end of each group of movable plates is provided with a clamping plate, and the surface of the clamping plate is provided with a bump, the bump is made of rubber, and a number of bumps are evenly distributed.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model proposes a locking seat for earthquake-resistant civil air defense doors. The existing limiting plate of the locking seat for earthquake-resistant civil air defense doors has poor automatic sliding effect. The utility model drives the rack at one end to move upward when the pressing block moves upward through a rack, a gear, a rotating rod, a fixed plate and a pull wire. The rack is meshed with the gear, and the gear drives the rotating rod to rotate. The two ends of the rotating rod are movably connected to the fixed plate, and the fixed plate is connected to the pressing block. The rotating rod drives the pull wire to pull upward, and the middle part of the pull wire is wound around a fixed point through a winding shaft, and the winding shaft is movably connected to the lock seat. The pull wire drives the limiting plate connected at the other end to slide toward one end, so that the limiting plate slides to one side through linkage when the pressing block completes the upward movement, and the lock sleeve is not pressed. Manual operation is not required, thereby improving the convenience and efficiency of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the overall front section structure of the utility model;

[0019] Figure 3 It is a three-dimensional structural schematic diagram of the limiting plate and the pulling structure of the utility model;

[0020] Figure 4 It is a three-dimensional structural schematic diagram of the limiting structure of the utility model;

[0021] Figure 5 It is a schematic diagram of the three-dimensional partial expansion structure of the limiting structure of the utility model.

[0022] In the figure: 1. lock seat; 2. groove; 3. lock sleeve; 4. limit plate; 5. electric push rod; 6. support plate; 7. lifting structure; 71. top plate; 72. motor; 73. drive rod; 74. ball screw; 75. threaded sleeve; 76. belt; 77. clamping block; 8. pulling structure; 81. rack; 82. gear; 83. rotating rod; 84. fixed plate; 85. pull wire; 9. limit structure; 91. connecting rod; 92. fixed shell; 93. rotating handle; 94. telescopic rod; 95. magnetic ring 1; 96. magnetic ring 2; 97. screw; 98. moving plate; 99. splint; 910. bump. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In order to further understand the content of the utility model, the utility model is described in detail in conjunction with the accompanying drawings.

[0025] Combination Figure 1-Figure 3 A locking seat for an earthquake-resistant civil defense door includes a lock seat 1, a groove 2 opened inside the lock seat 1, a lock sleeve 3 arranged inside the groove 2, a limiting plate 4 placed on the top of the lock sleeve 3, an electric push rod 5 arranged inside the groove 2, a supporting plate 6 arranged at the top of the electric push rod 5, a lifting structure 7 is arranged at the top of the lock seat 1, and a pulling structure 8 is arranged inside the lock seat 1.

[0026] The utility model is further described below in conjunction with embodiments.

[0027] Embodiment 1:

[0028] See also Figure 1-Figure 3 The lifting structure 7 includes a top plate 71 arranged above the lock seat 1, a motor 72 arranged at the bottom end of the top plate 71, a driving rod 73 arranged at the output end of the motor 72, a ball screw 74 arranged at one end of the driving rod 73, a belt 76 sleeved on the surface of the driving rod 73, a threaded sleeve 75 threadedly connected to the surface of the ball screw 74, and a clamping block 77 arranged at one end of the threaded sleeve 75. A driven rod is movably connected to one end of the top plate 71, and the ball screw 74 and the threaded sleeve 75 are symmetrically arranged in two groups, one group of ball screws 74 is connected to the driven rod, one end of the clamping block 77 is provided with a fixing plate 84, the rotating rod 83 is movably connected to the fixing plate 84, one end of the pull wire 85 is connected to the limiting plate 4, one end of the limiting plate 4 is provided with a spring, the spring is connected to the lock seat 1, does not press the lock sleeve 3, and does not require manual operation.

[0029] Specifically, first, when the lock of the civil air defense door fails and cannot be smoothly disengaged from the lock hole, the motor 72 can be turned on to drive the driving rod 73 at the output end to rotate. The driving rod 73 transmits another set of driven rods to rotate through the belt 76, so that the driving rod 73 and the driven rod respectively drive a set of ball screws 74 and threaded sleeves 75 for threaded connection. The threaded sleeve 75 drives the clamping block 77 at one end to move upward. The motor 72 is connected to the top plate 71, and one end of the driven rod is movably connected to the top plate 71. The threaded sleeve 75 drives the clamping block 77 to move upward, and the clamping block 77 moves away from the top of the limit plate 4, and When moving upward, it drives the rack 81 at one end to move upward, the rack 81 meshes with the gear 82, the gear 82 drives the rotating rod 83 to rotate, the two ends of the rotating rod 83 are movably connected with the fixed plate 84, the fixed plate 84 is connected with the clamping block 77, the rotating rod 83 drives the pull wire 85 to pull upward, the middle part of the pull wire 85 is wound around the fixed point through the winding shaft, the winding shaft is movably connected with the lock seat 1, the pull wire 85 drives the limit plate 4 connected at the other end to slide to one end, so that the limit plate 4 slides to one side through the linkage when the clamping block 77 completes the upward movement, and does not press the lock sleeve 3, and does not require manual operation, thereby improving the convenience and efficiency of operation.

[0030] Embodiment 2:

[0031] See also Figure 4-Figure 5 A limiting structure 9 is provided on one side of the top plate 71. The limiting structure 9 includes a connecting rod 91 provided at the bottom end of the top plate 71. A fixed shell 92 is provided at one end of the connecting rod 91. A screw 97 is movably connected inside the fixed shell 92. The surface of the screw 97 is a bidirectional thread. A telescopic rod 94 is provided at one end of the screw 97. A handle 93 is provided at one end of the telescopic rod 94. A magnetic ring 1 95 is provided at one end of the handle 93. A magnetic ring 2 96 is provided at one end of the fixed shell 92. The magnetic rings 1 95 and 2 96 are attracted to each other by opposite poles. A moving plate 98 is threadedly connected to the surface of the screw 97. The moving plates 98 are provided with two groups. The two groups of moving plates 98 are symmetrically distributed. A clamping plate 99 is provided at one end of each group of moving plates 98. A bump 910 is provided on the surface of the clamping plate 99. The bump 910 is made of rubber. There are several bumps 910 distributed at equal intervals. Accidental movement caused by false triggering increases the safety of the entire system.

[0032] Specifically, in order to prevent the motor 72 from accidentally hitting the drive of the lifting structure 7, a limiting structure 9 is provided on the surface of the driving rod 73 to limit the driving rod 73. When the motor 72 is not in use, two groups of clamping plates 99 are provided on the surface of the driving rod 73 to clamp and limit the driving rod 73. When the driving rod 73 needs to be used, the telescopic rod 94 is driven to rotate by rotating the handle 93 in the opposite direction. The telescopic rod 94 drives the screw 97 inside the fixed shell 92 to rotate. One end of the screw 97 is movably connected to the inner wall of the fixed shell 92. The screw 97 is threadedly connected to the two groups of movable plates 98. The two groups of movable plates 98 drive the two groups of clamping plates 99 to move in the opposite direction. The two groups of splints 99 are away from the surface of the driving rod 73. The inner surfaces of the two groups of splints 99 are provided with a number of rubber bumps 910 that contact the driving rod 73 to increase the friction during contact. The two groups of splints 99 do not limit the driving rod 73. The turning handle 93 compresses the telescopic rod 94 so that the magnetic ring 1 95 and the magnetic ring 2 96 are attracted and fixed with opposite poles. This is convenient for limiting the driving rod 73 and can effectively prevent accidental movement caused by false triggering when the motor 72 is not needed, thereby increasing the safety of the entire system. The limiting structure 9 can also protect mechanical components to avoid collision or damage due to unexpected movement.

[0033] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A locking seat for earthquake-resistant civil defense doors, comprising a locking seat (1), a groove (2) provided inside the locking seat (1), a lock sleeve (3) arranged inside the groove (2), a limiting plate (4) placed on the top of the lock sleeve (3), an electric push rod (5) arranged inside the groove (2), and a supporting plate (6) arranged on the top of the electric push rod (5), characterized in that: A lifting structure (7) is provided at the top of the lock seat (1), and a pulling structure (8) is provided inside the lock seat (1); The lifting structure (7) comprises a top plate (71) arranged above the lock seat (1), a motor (72) arranged at the bottom end of the top plate (71), a driving rod (73) arranged at the output end of the motor (72), a ball screw (74) arranged at one end of the driving rod (73), a belt (76) sleeved on the surface of the driving rod (73), a threaded sleeve (75) threadedly connected to the surface of the ball screw (74), and a pressing block (77) arranged at one end of the threaded sleeve (75); The pulling structure (8) comprises a rack (81) arranged at one end of the pressing block (77), a gear (82) meshed with one end of the rack (81), a rotating rod (83) arranged inside the gear (82), and a pulling wire (85) wound around the surface of the rotating rod (83).

2. The locking seat for earthquake-resistant civil defense door according to claim 1, characterized in that: One end of the top plate (71) is movably connected to a driven rod, and two groups of ball screws (74) and threaded sleeves (75) are symmetrically arranged, and one group of ball screws (74) is connected to the driven rod.

3. The locking seat for earthquake-resistant civil defense door according to claim 1, characterized in that: A fixing plate (84) is disposed at one end of the pressing block (77), the rotating rod (83) is movably connected to the fixing plate (84), one end of the pull wire (85) is connected to the limiting plate (4), one end of the limiting plate (4) is disposed with a spring, and the spring is connected to the lock seat (1).

4. The locking seat for earthquake-resistant civil defense door according to claim 1, characterized in that: A limiting structure (9) is provided on one side of the top plate (71), and the limiting structure (9) comprises a connecting rod (91) provided at the bottom end of the top plate (71), and a fixing shell (92) is provided at one end of the connecting rod (91).

5. The locking seat for earthquake-resistant civil defense door according to claim 4, characterized in that: The interior of the fixed shell (92) is movably connected with a screw rod (97), and the surface of the screw rod (97) is a bidirectional thread.

6. The locking seat for earthquake-resistant civil defense door according to claim 5, characterized in that: A telescopic rod (94) is disposed at one end of the screw rod (97), and a rotating handle (93) is disposed at one end of the telescopic rod (94).

7. The locking seat for earthquake-resistant civil defense door according to claim 6, characterized in that: One end of the rotating handle (93) is provided with a magnetic ring 1 (95), and one end of the fixed shell (92) is provided with a magnetic ring 2 (96), and the magnetic ring 1 (95) and the magnetic ring 2 (96) have opposite poles that attract each other.

8. The locking seat for earthquake-resistant civil defense door according to claim 7, characterized in that: The surface of the screw rod (97) is threadedly connected with a movable plate (98), and two groups of movable plates (98) are provided. The two groups of movable plates (98) are symmetrically distributed, and one end of each of the two groups of movable plates (98) is provided with a clamping plate (99), and the surface of the clamping plate (99) is provided with a protrusion (910), and the protrusion (910) is made of rubber material, and a plurality of protrusions (910) are evenly spaced.

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