Civil air defense door

Abstract

The civil air defense door comprises a rectangular door frame and a rectangular door plate which are hinged to each other, a rectangular frame edge close to the edge is arranged at the end, facing the rectangular door plate, of the rectangular door frame, an annular locking groove is formed in the inner side of the rectangular frame edge, and a driving frame sliding up and down is arranged at the end, facing the rectangular door frame, of the rectangular door plate. A working hole extending up and down is formed in the center of the driving frame, a rack arranged on the driving frame is arranged on the hole wall of the working hole and extends in the length direction of the working hole, a gear rotationally connected to the rectangular door plate is meshed with the rack, and a hand wheel controlling the gear to rotate is in transmission connection with the gear. The left side and / or the right side of the driving frame are / is provided with locking assemblies which are arranged at intervals up and down. The civil air defense door has the advantages of being labor-saving in opening and closing, firm in locking, complete in overall function and high in practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of civil air defense equipment, and more specifically, to a civil air defense door. Background Art

[0002] The civil air defense doors made of steel structures on the market are large in size and heavy in weight, and the locking mechanisms arranged on the doors are mostly pure mechanical structures. In order to save effort in opening and closing the locking mechanisms, the utility model proposes a civil air defense door. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the above-mentioned prior art and to provide a civil air defense door which is labor-saving to open and close and has the characteristics of being firmly locked.

[0004] To solve the above technical problems, the purpose of the utility model is achieved as follows: the civil air defense door involved in the utility model comprises a rectangular door frame and a rectangular door panel hinged to each other, the end of the rectangular door frame facing the rectangular door panel is provided with a rectangular frame edge close to the edge, the inner side of the rectangular frame edge is provided with an annular locking groove, the end of the rectangular door panel facing the rectangular door frame is provided with a driving frame for sliding up and down, the center of the driving frame is provided with a working hole extending up and down, the hole wall of the working hole is provided with a rack arranged on the driving frame, the rack extends along the length direction of the working hole, the rack is meshed with a gear rotatably connected to the rectangular door panel, the gear is transmission-connected with a hand wheel for controlling its rotation, and a locking assembly arranged in an upper and lower interval is provided on the left and / or right side of the driving frame;

[0005] The locking assembly includes a guide cylinder which is arranged on the rectangular door panel and extends left and right. A locking pin is slidably connected in the guide cylinder. One end of the locking pin can be inserted into the annular locking groove, and the other end has a driving ball head. A spherical positioning groove for the driving ball head to be embedded is provided on the driving frame. A spring retaining ring arranged on the locking pin is provided between the spherical positioning groove and the guide cylinder. The locking pin is sleeved with an elastic member with one end resting against the guide cylinder and the other end resting against the spring retaining ring.

[0006] The utility model is further configured as follows: a locking assembly arranged in an upper and lower interval is provided on the left side and the right side of the driving frame; and the spacing between two adjacent locking assemblies on the same side is equal.

[0007] The utility model is further configured as follows: a linear guide rail extending up and down is provided on the rectangular door panel, a linear slider is slidably connected to the linear guide rail, and the driving frame is arranged on the linear slider.

[0008] The utility model is further configured as follows: the elastic member is a compression spring.

[0009] To sum up, the utility model has the following beneficial effects: the civil air defense door involved in the utility model controls all the locking components linked thereto through a driving frame that moves up and down, so that the locking pin on it is inserted into or pulled out of the annular locking groove, thereby achieving the effect of opening and closing the civil air defense door, saving effort in opening and closing, reliable locking, complete overall functions, and strong practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the structure of the utility model for reflecting a rectangular door panel;

[0011] Figure 2 It is a structural schematic diagram of the utility model for embodying a rectangular door frame. DETAILED DESCRIPTION

[0012] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments, but it should be understood that these descriptions are only for further illustrating the features and advantages of the utility model, rather than limiting the patent requirements of the utility model. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the utility model.

[0013] The utility model is further described below in conjunction with the accompanying drawings and preferred embodiments.

[0014] Example 1

[0015] See also Figure 1 and Figure 2 As shown, a civil air defense door involved in this embodiment comprises a rectangular door frame 1 and a rectangular door panel 2 which are hinged to each other, wherein the end of the rectangular door frame 1 facing the rectangular door panel is provided with a rectangular frame edge 3 close to the edge, and the inner side of the rectangular frame edge 3 is provided with an annular locking groove (not shown), and the end of the rectangular door panel 2 facing the rectangular door frame is provided with a driving frame 4 for sliding up and down, and a working hole 5 extending up and down is provided in the center of the driving frame 4, and a rack 6 arranged on the driving frame 4 is provided on the hole wall of the working hole 5, and the rack 6 extends along the length direction of the working hole 5, and a gear 7 rotatably connected to the rectangular door panel 2 is meshed on the rack 6, and a hand wheel (not shown) for controlling its rotation is transmission-connected to the gear 7, and a locking assembly 9 arranged in an upper and lower interval is provided on the left and right sides of the driving frame 4, and the spacing between two adjacent locking assemblies 9 on the same side is equal;

[0016] The locking assembly 9 includes a guide cylinder 91 which is arranged on the rectangular door panel 2 and extends left and right. A locking pin 92 is slidably connected in the guide cylinder 91. One end of the locking pin 92 can be inserted into the annular locking groove, and the other end has a driving ball head 93. A spherical positioning groove 94 for the driving ball head to be embedded is provided on the driving frame 4. A spring retaining ring 95 is provided on the locking pin between the spherical positioning groove 94 and the guide cylinder 91. An elastic member 96 is sleeved on the locking pin 92, with one end abutting against the guide cylinder and the other end abutting against the spring retaining ring. The elastic member 96 is a compression spring.

[0017] Furthermore, a linear guide rail 10 extending up and down is provided on the rectangular door panel 2 , a linear slider 11 is slidably connected to the linear guide rail 10 , and the driving frame 4 is arranged on the linear slider 11 .

[0018] In this embodiment, the rectangular door frame 1 and the rectangular door panel 2 are first closed, and then the hand wheel is rotated clockwise to drive the gear 7 to rotate, and the gear 7 is driven by the meshing rack 6 to drive the frame 4 to move up relative to the rectangular door panel 2, and the ball head 93 is driven to escape from the spherical positioning groove 94, and the lock pin 92 is extended outward until it is inserted into the annular locking groove, thereby completing the locking and closing of the civil air defense door. When the civil air defense door needs to be opened, it needs to be unlocked first, and the hand wheel is rotated counterclockwise to drive the gear 7 to rotate, and the gear 7 is driven by the meshing rack 6 to drive the frame 4 to move down relative to the rectangular door panel 2, and the ball head 93 is driven to enter the spherical positioning groove 94 again, and the lock pin 92 is reset under the action of the elastic member 96, and the lock pin 92 is retracted and retracted from the annular locking groove, thereby completing the unlocking of the civil air defense door, and then the civil air defense door can be opened.

[0019] The linear guide rail 10 cooperates with the linear slider 11 to provide a sliding guide for the drive frame 4 when it moves up and down.

[0020] The civil air defense door involved in the utility model controls all the locking components linked thereto by means of a driving frame that moves up and down, so that the locking pin on it can be inserted into or withdrawn from the annular locking groove, thereby achieving the effect of opening and closing the civil air defense door, saving effort in opening and closing, reliable locking, perfect overall functions and strong practicality.

[0021] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationship are based on the orientation or positional relationship actually shown, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in combination with the embodiments and according to specific circumstances.

[0022] Unless otherwise clearly specified and limited, in the present invention, the terms "disposed", "connected" and "connected" 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 direct connection, or an indirect connection 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.

[0023] The preferred specific embodiments of the utility model are described in detail above. It should be understood that ordinary technicians in this field can make many modifications and changes based on the concept of the utility model without creative work. Therefore, all technical solutions that can be obtained by technicians in this technical field based on the concept of the utility model through logical analysis, reasoning or limited experiments on the basis of the existing technology should be within the scope of protection determined by the claims.

Claims

1. A civil air defense door, comprising a rectangular door frame and a rectangular door panel hinged to each other, wherein one end of the rectangular door frame facing the rectangular door panel is provided with a rectangular frame edge close to the edge, and an annular locking groove is provided on the inner side of the rectangular frame edge, characterized in that: A driving frame for sliding up and down is provided at one end of the rectangular door panel facing the rectangular door frame, a working hole extending up and down is opened in the center of the driving frame, a rack provided on the driving frame is provided on the hole wall of the working hole, the rack extends along the length direction of the working hole, a gear rotatably connected to the rectangular door panel is meshed on the rack, a hand wheel for controlling the rotation of the gear is transmission-connected to the gear, and a locking assembly arranged in an upper and lower interval is provided on the left and / or right side of the driving frame; The locking assembly includes a guide cylinder which is arranged on the rectangular door panel and extends left and right. A locking pin is slidably connected in the guide cylinder. One end of the locking pin can be inserted into the annular locking groove, and the other end has a driving ball head. A spherical positioning groove for the driving ball head to be embedded is provided on the driving frame. A spring retaining ring arranged on the locking pin is provided between the spherical positioning groove and the guide cylinder. The locking pin is sleeved with an elastic member with one end resting against the guide cylinder and the other end resting against the spring retaining ring.

2. The civil air defense door according to claim 1, characterized in that: The left side and the right side of the driving frame are each provided with a locking assembly arranged in an upper and lower interval; the distance between two adjacent locking assemblies on the same side is equal.

3. The civil air defense door according to claim 1 or 2, characterized in that: The rectangular door panel is provided with a linear guide rail extending up and down, a linear slider is slidably connected to the linear guide rail, and the driving frame is arranged on the linear slider.

4. The civil air defense door according to claim 3, characterized in that: The elastic member is a compression spring.

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