Locking device for civil air defense door

Abstract

The utility model discloses a locking device for a civil air defense door in the technical field of civil air defense doors, which comprises a protective door and a locking block, the locking block is placed on the right side wall of the protective door, the right side wall of the protective door is provided with a mounting hole, and the left side wall of the inner cavity of the mounting hole is fixedly connected with a spring. A mounting block is fixedly connected to the right end of the spring, a plug pin is fixedly connected to the right side wall of the mounting block, a push rod is fixedly connected to the front side wall of the mounting block, the front end of the push rod penetrates through the mounting hole and extends to the front side wall of the protective door, and a handle is fixedly connected to the front side wall of the protective door. According to the locking device for the civil air defense door, the structural design is reasonable, the locking device can be quickly opened, the protective door can be conveniently used, self-locking of the protective door is avoided, and repeated opening and closing of the locking device are avoided.

Description

Technical Field

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

[0002] Civil defense doors are the doors at the entrances and exits of people's defense projects. They are activities for the government to mobilize and organize the masses, take anti-air raid, disaster prevention and relief measures, implement rescue operations, and prevent and reduce the hazards of disasters. The classification of civil defense doors is relatively clear. There are ordinary single-leaf and double-leaf protective closed doors and closed doors, single-leaf and double-leaf protective closed doors and closed doors with movable thresholds, and other civil defense equipment; civil defense doors belong to civil defense protection equipment, generally made of hard steel materials, have a certain function of preventing shock waves and effectively ensure the safety and stability inside the civil defense space.

[0003] The existing civil defense door locking device has a complex mechanism and is cumbersome to operate. It takes a certain amount of time to open or close the locking device, which makes the use of the locking device inconvenient, and in turn makes the use of the protective door inconvenient. In some scenarios, the civil defense door needs to be used frequently, which requires repeated opening and closing of the locking device, which is very troublesome. For this reason, we propose a locking device for civil defense doors. Utility Model Content

[0004] The purpose of the utility model is to provide a locking device for civil air defense doors, so as to solve the problems raised in the above-mentioned background technology that the general locking device is cumbersome to operate and has low switching efficiency, and in some scenarios, the civil air defense door needs to be used frequently, and it is very troublesome to repeatedly open and close the locking device.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a locking device for a civil defense door, comprising a protective door and a locking block, the locking block being placed on the right side wall of the protective door, a mounting hole being opened on the right side wall of the protective door, a spring being fixedly connected to the left side wall of the inner cavity of the mounting hole, a mounting block being fixedly connected to the right end of the spring, a latch being fixedly connected to the right side wall of the mounting block, a push rod being fixedly connected to the front side wall of the mounting block, and a front end of the push rod passing through the mounting hole and extending to the front side wall of the protective door.

[0006] As a further description of the above technical solution:

[0007] A handle is fixedly connected to the front side wall of the protective door, and a sponge sleeve is sleeved in the middle of the outer side wall of the handle.

[0008] As a further description of the above technical solution:

[0009] A slot is provided on the left side wall of the locking block, and a groove is provided on the right side wall of the inner cavity of the slot.

[0010] As a further description of the above technical solution:

[0011] A sliding groove is provided on the rear side wall of the inner cavity of the groove, a sliding block is slidably connected to the inner cavity of the sliding groove, and a connecting rod is fixedly connected to the front side wall of the sliding block.

[0012] As a further description of the above technical solution:

[0013] The left end of the connecting rod is fixedly connected with a baffle, and the bottom of the connecting rod is fixedly connected with a rack.

[0014] As a further description of the above technical solution:

[0015] The front side wall of the locking block is rotatably connected with a rocker, the rear end of the rocker penetrates the locking block and extends to the inner cavity of the groove, and is fixedly connected with a gear, and the gear is meshed and rotated with the rack.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. The locking device for the civil air defense door pushes the push rod to the left so that the push rod transmits the thrust to the mounting block, which then moves the mounting block to the left and contracts the spring. By moving the mounting block to the left, the right end of the latch moves out of the slot, so that the locking device can be quickly opened, making the protective door easy to use.

[0018] 2. The locking device for the civil air defense door rotates the rocker to drive the gear to rotate, and the gear rotation causes the rack to drive the connecting rod to move, and the connecting rod drives the baffle to move, so that the baffle closes the slot, and then the right end of the pin cannot be inserted into the slot, thereby preventing the protective door from self-locking and repeatedly opening and closing the locking device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a three-dimensional structural schematic diagram of a locking device for a civil air defense door proposed by the utility model;

[0020] Figure 2 This is a schematic diagram of the main structure of a locking device for a civil air defense door proposed by the utility model;

[0021] Figure 3 This is a schematic diagram of the main cross-sectional structure of a locking device for a civil air defense door proposed by the utility model;

[0022] Figure 4 The utility model is a schematic diagram of a top view and cross-sectional structure of a locking device for a civil air defense door.

[0023] In the figure: 100, protective door; 110, mounting hole; 120, spring; 130, mounting block; 140, latch; 150, push rod; 160, handle; 170, sponge cover; 200, locking block; 210, slot; 220, groove; 230, slide groove; 240, slider; 250, connecting rod; 260, baffle; 270, rack; 280, rocker; 290, gear. DETAILED DESCRIPTION

[0024] 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.

[0025] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0027] The utility model provides a locking device for a civil air defense door, which can quickly open the locking device and prevent the protective door from self-locking to avoid repeated opening and closing of the locking device. Figure 1-4 , comprising a protective door 100 and a locking block 200;

[0028] See also Figure 3-4A mounting hole 110 is provided on the right side wall of the protective door 100, and the mounting hole 110 is used to install a spring 120. The left side wall of the inner cavity of the mounting hole 110 is fixedly connected with the spring 120, and the spring 120 is used for the latch 140 to be tightly inserted into the slot 210. The right end of the spring 120 is fixedly connected with a mounting block 130, and the mounting block 130 is used to install the latch 140. The right side wall of the mounting block 130 is fixedly connected with the latch 140, and the latch 140 is used to be inserted into the slot 210. A push rod 150 is fixedly connected to the front side wall of the mounting block 130, and the front end of the push rod 150 passes through the mounting hole 110 and extends to the front side wall of the protective door 100. The push rod 150 is used to push the mounting block 130, and by pushing the push rod 150, the mounting block 130 drives the latch 140 to move;

[0029] Please refer again Figure 1-4 , the locking block 200 is placed on the right side wall of the protective door 100 , and the locking block 200 is used to cooperate with the latch 140 ;

[0030] In summary, the locking device can be opened quickly, so that the protective door 100 can be conveniently used.

[0031] See also Figure 1 , Figure 2 and Figure 4 A handle 160 is fixedly connected to the front side wall of the protective door 100 , and a sponge sleeve 170 is sleeved in the middle of the outer side wall of the handle 160 , and the protective door 100 can be pulled by the handle 160 .

[0032] See also Figure 4 A slot 210 is provided on the left side wall of the locking block 200 , and a groove 220 is provided on the right side wall of the inner cavity of the slot 210 , through which the connecting rod 250 can be installed.

[0033] Please refer again Figure 4 A slide groove 230 is provided on the rear side wall of the inner cavity of the groove 220, and a slider 240 is slidably connected to the inner cavity of the slide groove 230. A connecting rod 250 is fixedly connected to the front side wall of the slider 240. The slider 240 slides in the slide groove 230, so that the connecting rod 250 can remain stable when moving.

[0034] Please refer again Figure 1-4 The left end of the connecting rod 250 is fixedly connected with a baffle 260 , and the bottom of the connecting rod 250 is fixedly connected with a rack 270 , and the connecting rod 250 can be driven to move by the rack 270 .

[0035] Please refer again Figure 4The front side wall of the locking block 200 is rotatably connected to a rocker 280, the rear end of the rocker 280 passes through the locking block 200 and extends to the inner cavity of the groove 220, and is fixedly connected to a gear 290, which meshes and rotates with the rack 270. By rotating the rocker 280, the gear 290 and the rack 270 mesh and rotate.

[0036] In summary, the self-locking of the protective door 100 is avoided, so as to avoid repeated opening and closing of the locking device.

[0037] During specific use, personnel skilled in the art first push the push rod 150 to the left, so that the push rod 150 transmits the thrust to the mounting block 130, and then moves the mounting block 130 to the left, and contracts the spring 120. By moving the mounting block 130 to the left, the right end of the latch 140 moves out of the slot 210, and then pushes the handle 160 to open the protective door 100. When the locking device does not need to self-lock, the rocker 280 is rotated so that the rocker 280 drives the gear 290 to rotate. Through the rotation of the gear 290, the rack 270 drives the connecting rod 250 to move, and the baffle 260 is driven to move by the connecting rod 250, so that the baffle 260 closes the slot 210, and then the right end of the latch 140 cannot be inserted into the slot 210, so that the locking device cannot self-lock.

[0038] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0039] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate 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 claims and their equivalents.

Claims

1. A locking device for a civil air defense door, characterized in that: The invention comprises a protective door (100) and a locking block (200), wherein the locking block (200) is placed on the right side wall of the protective door (100), the right side wall of the protective door (100) is provided with a mounting hole (110), a spring (120) is fixedly connected to the left side wall of the inner cavity of the mounting hole (110), the right end of the spring (120) is fixedly connected to the mounting block (130), the right side wall of the mounting block (130) is fixedly connected to a latch (140), the front side wall of the mounting block (130) is fixedly connected to a push rod (150), and the front end of the push rod (150) passes through the mounting hole (110) and extends to the front side wall of the protective door (100).

2. The locking device for a civil air defense door according to claim 1, characterized in that: A handle (160) is fixedly connected to the front side wall of the protective door (100), and a sponge sleeve (170) is sleeved in the middle of the outer side wall of the handle (160).

3. The locking device for a civil air defense door according to claim 1, characterized in that: A slot (210) is provided on the left side wall of the locking block (200), and a groove (220) is provided on the right side wall of the inner cavity of the slot (210).

4. The locking device for civil air defense door according to claim 3, characterized in that: A sliding groove (230) is provided on the rear side wall of the inner cavity of the groove (220), a sliding block (240) is slidably connected to the inner cavity of the sliding groove (230), and a connecting rod (250) is fixedly connected to the front side wall of the sliding block (240).

5. The locking device for civil air defense door according to claim 4, characterized in that: The left end of the connecting rod (250) is fixedly connected to a baffle (260), and the bottom of the connecting rod (250) is fixedly connected to a rack (270).

6. The locking device for a civil air defense door according to claim 1, characterized in that: The front side wall of the locking block (200) is rotatably connected to a rocker (280), the rear end of the rocker (280) passes through the locking block (200) and extends to the inner cavity of the groove (220), and is fixedly connected to a gear (290), and the gear (290) is meshed and rotatable with the rack (270).

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