Inspection door with self-locking device

Abstract

The utility model discloses an inspection door with a self-locking device, comprising a wall, wherein an inspection door frame is arranged inside the wall, an inspection door leaf is installed on the inner side of the inspection door frame through a hinge, and a movable buckle fixing arm is fixedly connected to one side of the inspection door leaf. The beneficial effects of the utility model are: by arranging the self-locking movable buckle and the self-locking fixed arm, the inspection door leaf can be quickly opened without a specific key, and can be widely used on the inspection door leaf for placing fire-fighting and life-saving equipment, and by arranging two symmetrical limiting slide plates and No. 1 spring, it is achieved that no matter which direction the rotating shaft and the self-locking movable buckle are rotated, the No. 1 spring can be pressed, so that the rotation adjustment position of the limiting slide block, the rotating column, the rotating shaft and the self-locking movable buckle is reset, thereby improving the stability of the fixation between the self-locking movable buckle and the self-locking fixed arm.

Description

Technical Field

[0001] The utility model relates to the technical field of inspection doors, in particular to an inspection door with a self-locking device. Background Art

[0002] Inspection holes are also called inspection holes, inspection holes, manholes, and inspection doors. During the renovation process, inspection holes are needed in places such as central air-conditioning pipes, electrical wire pipes, and water supply and drainage pipes in the bathroom. Technical personnel use them to inspect the internal pipes of the ceiling or tiles and gypsum board walls. The door leaf locks of existing furniture and inspection doors are all locked with inspection door locks. After the inspection door locks are installed, there are keyholes on the front of the inspection door, which are less beautiful. In addition, the keyholes of the inspection door require keys to open, which is not convenient for maintenance. Utility Model Content

[0003] The purpose of the utility model is to provide an inspection door with a self-locking device to solve the problem that the door leafs of existing furniture and inspection doors mentioned in the above background technology are all locked by inspection door locks, and after the inspection door locks are installed, there are keyholes on the front of the inspection door, which are less beautiful, and the keyholes of the inspection door need to be opened with a key, which is not convenient during maintenance.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an inspection door with a self-locking device, comprising a wall, an inspection door frame is arranged inside the wall, an inspection door leaf is installed on the inner side of the inspection door frame through a hinge, a movable buckle fixing arm is fixedly connected to one side of the inspection door leaf, a rotating shaft is rotatably connected to the inner side of the movable buckle fixing arm, a self-locking movable buckle is fixedly connected to the outer side of the rotating shaft, a self-locking fixed arm cooperating with the self-locking movable buckle is fixedly connected to the inner side of the inspection door frame, fixed side boxes are fixedly connected to both sides of the movable buckle fixing arm, and the fixed side boxes are fixedly connected to the fixed side boxes. The box is rotatably connected with a rotating column inside, and the outer side of the rotating column is fixedly connected with a limiting slider, and the interior of the fixed side box is provided with a limiting slide groove that cooperates with the limiting slider, and the limiting slider is slidably connected to the limiting slide groove, and the interiors of the two limiting slide grooves are provided with a movable slide groove, and the interiors of the movable slide grooves are slidably connected with a movable slider, and one side of the movable slider is fixedly connected with a limiting slide that cooperates with the limiting slider, and the limiting slide is slidably connected to the limiting slide groove, and the interiors of the two limiting slide grooves are symmetrically fixedly connected with a No. 1 spring, and one end of the No. 1 spring is fixedly connected to the limiting slide groove.

[0005] As a preferred solution of the utility model: two guiding inner sides are provided on the inner sides of the two movable slide grooves, a fixing frame is symmetrically fixedly connected to the inside of the movable slide block, and a guide roller matching the guiding inner side is rotatably connected to the inner side of the fixing frame.

[0006] As a preferred solution of the utility model: a fixed side frame is symmetrically fixedly connected to the inner side of the inspection door frame, a sliding push rod is slidably connected to the inside of the fixed side frame, and one end of the sliding push rod is fixedly connected to a push block that cooperates with the inspection door leaf.

[0007] As a preferred solution of the utility model: the other end of the sliding push rod is fixedly connected with a limiting sleeve.

[0008] As a preferred solution of the utility model: a No. 2 spring is sleeved on the outer side of the sliding push rod.

[0009] Compared with the prior art, the beneficial effects of the utility model are as follows: the utility model realizes that the inspection door leaf can be quickly opened without a specific key by arranging a self-locking movable buckle and a self-locking fixed arm, and can be widely used on inspection door leaves for placing fire-fighting and life-saving equipment. By arranging two symmetrical limit slides and No. 1 spring, it is realized that no matter which direction the rotating shaft and the self-locking movable buckle are rotated, the No. 1 spring can be pressed, so that the rotation adjustment position of the limit slide, the rotating column, the rotating shaft and the self-locking movable buckle is reset, thereby improving the stability of the fixation between the self-locking movable buckle and the self-locking fixed arm. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0011] Figure 2 This is a left view of the movable buckle fixing arm of the utility model;

[0012] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0013] Figure 4 This is a schematic diagram of the internal structure of one of the fixed side boxes of the utility model;

[0014] Figure 5 This is a schematic diagram of the structure of a movable slideway of a fixed side box of the utility model;

[0015] Figure 6 This is another schematic diagram of the internal structure of the fixed side box of the utility model;

[0016] Figure 7 This is another schematic diagram of the structure of the fixed side box moving slideway of the utility model;

[0017] Figure 8 This is a schematic diagram of the three-dimensional structure of the movable buckle fixing arm of the utility model;

[0018] Fig. 9 This is a schematic diagram of the closing structure of the inspection door leaf of the utility model;

[0019] Fig.10 It is a schematic diagram of the opening structure of the door leaf of the utility model maintenance door.

[0020] In the figure: 1. Inspection door leaf; 2. Inspection door frame; 3. Wall; 4. Movable buckle fixed arm; 5. Self-locking movable buckle; 6. Rotating shaft; 7. Self-locking fixed arm; 8. Fixed side box; 9. Rotating column; 10. Limiting slider; 11. Limiting slide groove; 12. Limiting slide plate; 13. Moving slider; 14. No. 1 spring; 15. Moving slide groove; 16. Fixed frame; 17. Guide roller; 18. Guide inner side; 19. Fixed side frame; 20. Sliding push rod; 21. Limiting sleeve; 22. Pushing block; 23. No. 2 spring. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figures 1 to 10 The utility model provides a technical solution: an inspection door with a self-locking device, comprising a wall 3, an inspection door frame 2 is arranged inside the wall 3, an inspection door leaf 1 is installed on the inner side of the inspection door frame 2 through a hinge, a movable buckle fixing arm 4 is fixedly connected to one side of the inspection door leaf 1, a rotating shaft 6 is rotatably connected to the inner side of the movable buckle fixing arm 4, a self-locking movable buckle 5 is fixedly connected to the outer side of the rotating shaft 6, a self-locking fixed arm 7 cooperating with the self-locking movable buckle 5 is fixedly connected to the inner side of the inspection door frame 2, fixed side boxes 8 are fixedly connected on both sides of the movable buckle fixing arm 4, a rotating column 9 is rotatably connected to the inner side of the fixed side box 8, a limiting slider 10 is fixedly connected to the outer side of the rotating column 9, and a self-locking movable buckle 5 cooperating with the self-locking movable buckle 5 is opened inside the fixed side box 8 The limiting slide groove 11, the limiting slider 10 is slidably connected to the limiting slide groove 11, the two limiting slide grooves 11 are provided with movable slide grooves 15 inside, the movable slide groove 15 is slidably connected with the movable slider 13 inside, one side of the movable slider 13 is fixedly connected with a limiting slide plate 12 that cooperates with the limiting slide plate 10, the limiting slide plate 12 is slidably connected to the limiting slide groove 11, the inside of the two limiting slide grooves 11 is symmetrically fixedly connected with a No. 1 spring 14, one end of the No. 1 spring 14 is fixedly connected to the limiting slide plate 12, by providing a self-locking movable buckle 5 and a self-locking fixed arm 7, it is achieved that the inspection door leaf 1 can be quickly opened without a specific key, and can be widely used on the inspection door leaf 1 where fire-fighting and life-saving equipment are placed.

[0023] Among them, two guiding inner sides 18 are provided on the inner sides of the two movable slide grooves 15, and the inner side of the movable slider 13 is symmetrically fixedly connected with the fixing frame 16, and the inner side of the fixing frame 16 is rotatably connected with the guiding roller 17 cooperating with the guiding inner side 18. When the limiting slide plate 12 is pushed and the No. 1 spring 14 is reset, the limiting slide plate 12 drives the movable slider 13 to slide within the movable slide groove 15, and is guided to move on the guiding inner side 18 by the guiding roller 17 on the inner side of the fixing frame 16, thereby improving the stability of the movement.

[0024] Among them, the inner side of the inspection door frame 2 is symmetrically fixedly connected with a fixed side frame 19, the interior of the fixed side frame 19 is slidably connected with a sliding push rod 20, one end of the sliding push rod 20 is fixedly connected with a push block 22 that cooperates with the inspection door leaf 1, and the push block 22 pushes against the inner side of the inspection door leaf 1 to maintain the force balance of the inspection door leaf 1, so that the inspection door leaf 1 can maintain a good closed state.

[0025] The other end of the sliding push rod 20 is fixedly connected with a limiting sleeve 21 .

[0026] Among them, a No. 2 spring 23 is sleeved on the outer side of the sliding push rod 20. The thrust of the No. 2 spring 23 returning to its original position drives the push block 22 to move and push the inspection door leaf 1 outward.

[0027] Specifically, when the inspection door leaf 1 is closed during use, the inspection door leaf 1 is closed by external force, so that the self-locking movable buckle 5 contacts and rotates with the self-locking fixed arm 7, and the self-locking movable buckle 5 drives the rotating shaft 6 and the rotating column 9 to rotate, and the rotating column 9 drives the limiting slide block 10 to move in the limiting slide groove 11, and the limiting slide groove 11 pushes one of the limiting slide plates 12 and the No. 1 spring 14, and presses one of the No. 1 springs 14. When the door leaf is pushed to a specific position, the self-locking movable buckle 5 is just stuck on the self-locking fixed arm 7 through the reset of the No. 1 spring 14. At this time, the pushing block 22 just pushes against the inner side of the inspection door leaf 1, maintaining The force of the inspection door leaf 1 is balanced, so that the inspection door leaf 1 can maintain a good closed state. When opening the inspection door leaf 1, it is only necessary to continue to push the inspection door leaf 1 so that the self-locking movable buckle 5 disengages from the self-locking fixed arm 7. At this time, the inspection door leaf 1 presses the push block 22, and the push block 22 presses the No. 2 spring 23, which is squeezed by the inspection door leaf 1. After the external force is removed, the thrust of the No. 2 spring 23 resets and drives the push block 22 to move and push the inspection door leaf 1 outward. Since the self-locking movable buckle 5 has no outward bayonet, the self-locking movable buckle 5 can smoothly pass through the self-locking fixed arm 7, thereby realizing the opening of the inspection door leaf 1.

[0028] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0029] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0030] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0031] 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. An inspection door with a self-locking device, comprising a wall (3), characterized in that: An inspection door frame (2) is provided inside the wall (3), and an inspection door leaf (1) is installed on the inner side of the inspection door frame (2) via a hinge. A movable buckle fixing arm (4) is fixedly connected to one side of the inspection door leaf (1), and a rotating shaft (6) is rotatably connected to the inner side of the movable buckle fixing arm (4). A self-locking movable buckle (5) is fixedly connected to the outer side of the rotating shaft (6). A self-locking movable buckle (7) cooperating with the self-locking movable buckle (5) is fixedly connected to the inner side of the inspection door frame (2), and both sides of the movable buckle fixing arm (4) are fixedly connected to a fixed side box (8), and a rotating column (9) is rotatably connected to the interior of the fixed side box (8), and a limiting slider is fixedly connected to the outer side of the rotating column (9). (10), a limiting slide groove (11) cooperating with the limiting slider (10) is provided inside the fixed side box (8), the limiting slider (10) is slidably connected to the limiting slide groove (11), a movable slide groove (15) is provided inside the two limiting slide grooves (11), a movable slider (13) is slidably connected inside the movable slide groove (15), a limiting slide plate (12) cooperating with the limiting slider (10) is fixedly connected to one side of the movable slider (13), the limiting slide plate (12) is slidably connected to the limiting slide groove (11), a No. 1 spring (14) is symmetrically fixedly connected inside the two limiting slide grooves (11), and one end of the No. 1 spring (14) is fixedly connected to the limiting slide plate (12).

2. The inspection door with a self-locking device according to claim 1, characterized in that: Two guide inner sides (18) are provided on the inner sides of the two movable slide grooves (15); a fixing frame (16) is symmetrically fixedly connected to the inside of the movable slide block (13); and a guide roller (17) cooperating with the guide inner sides (18) is rotatably connected to the inner side of the fixing frame (16).

3. The inspection door with a self-locking device according to claim 1, characterized in that: A fixed side frame (19) is symmetrically fixedly connected to the inner side of the inspection door frame (2), a sliding push rod (20) is slidably connected to the interior of the fixed side frame (19), and one end of the sliding push rod (20) is fixedly connected to a push block (22) that cooperates with the inspection door leaf (1).

4. The inspection door with a self-locking device according to claim 3, characterized in that: The other end of the sliding push rod (20) is fixedly connected with a limiting sleeve (21).

5. The inspection door with a self-locking device according to claim 3, characterized in that: The outer side of the sliding push rod (20) is sleeved with a No. 2 spring (23).

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