Protective door chaining hinge device

Abstract

The utility model relates to the technical field of protective doors, in particular to a protective door chaining hinge device which comprises a door frame body and a hinge body, the hinge body is arranged on one side of the door frame body, a limiting mechanism is arranged on the hinge body, a fixing plate is arranged in the limiting mechanism, a groove is formed in the fixing plate, a bolt is arranged on the fixing plate, and the hinge body is arranged in the groove. A groove is formed in the hinge body, a limiting plate is arranged on one side of the groove, a limiting groove is formed in the limiting plate, an opening and closing mechanism is arranged on the hinge body, a fixing rod is arranged in the opening and closing mechanism, a first fixing sleeve is arranged on the fixing rod, and a first limiting sleeve is arranged on the fixing rod.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of protective door, concretely is a protective door link hinge device. BACKGROUND

[0002] The reinforced concrete door leaf is the door leaf with the largest consumption among the many varieties of civil air defense doors, and the door frame hinge plays an important role in the installation process of the reinforced concrete door leaf. The original door frame hinge structure is that two hinge ears are directly welded on the bottom plate.

[0003] To this end, Chinese patent number CN220565902U discloses a protective door hinge device, which includes a bottom plate and two hinge ears. Two recesses are symmetrically arranged on the middle part of the bottom plate. The hinge ear includes a hinge ear body and a clamping block. The bottom surface of the hinge ear body is fixedly connected with the top surface of the clamping block, and the area of the top surface of the clamping block is smaller than that of the bottom surface of the hinge ear body. The clamping block is arranged in the middle part of the bottom surface of the hinge ear body. The clamping block is arranged corresponding to the recesses and cooperates with the recesses in size. The two hinge ears are positioned and fixedly connected by welding through the clamping block inserted into the two recesses. The protective door hinge device sets recesses on the bottom plate. The hinge is initially positioned by clamping into the recesses through the clamping block. When welding, the perpendicularity of the hinge ear and the bottom plate and the coaxiality of the two hinge ears are ensured by passing through the through holes on the two hinge ears with the shaft pin. The tenon-and-mortise structure is welded, the product has stronger firmness, and no other processing is required, so the installation is convenient and fast.

[0004] However, the existing protective door link hinge device is limited and fixed by a limiting mechanism between the hinge bodies. The hinge bodies in the existing device are only connected by a simple connecting structure. Since the protective body is heavy, the existing device may be broken at the connection during long-term use, thereby affecting the service life of the device.

[0005] Therefore, in order to solve the above problems, a protective door link hinge device is proposed. UTILITY MODEL CONTENTS

[0006] The utility model aims at providing a protective door link hinge device to solve the problem of the existing protective door link hinge device mentioned in the background art, in which the hinge bodies are limited and fixed by a limiting mechanism. The hinge bodies in the existing device are only connected by a simple connecting structure. Since the protective body is heavy, the existing device may be broken at the connection during long-term use, thereby affecting the service life of the device.

[0007] To achieve the above object, the utility model provides the following technical scheme: A protective door link hinge device, include: door frame main part and hinge main part, hinge main part one side is equipped with hinge main part, be equipped with limiting mechanism on the hinge main part, be equipped with fixed plate in the limiting mechanism, the recess is opened to the fixed plate, and be equipped with bolt on the fixed plate, one side of recess is equipped with limiting plate, the limiting groove is opened to the limiting plate, and be equipped with opening and closing mechanism on the hinge main part, be equipped with fixed rod in the opening and closing mechanism, be equipped with first fixed sleeve on the fixed rod, and be equipped with first limiting sleeve on the fixed rod.

[0008] Preferably, the first movable sleeve is movably mounted on the fixed rod, and the connecting rod is fixedly mounted on the first movable sleeve.

[0009] Preferably, the second movable sleeve is movably mounted on one end of the connecting rod, and the supporting rod is arranged on the second movable sleeve and movably mounted on the supporting rod.

[0010] Preferably, the second fixed sleeve is fixedly mounted on both ends of the supporting rod, and the supporting rod is fixedly mounted in the recess through the second fixed sleeve, and the second limiting sleeve is fixedly mounted on the supporting rod.

[0011] Preferably, the fixed plate is fixedly mounted on the door frame main part through the bolt, the limiting plate is movably mounted on the recess, and one end of the connecting rod is attached to the limiting plate through the limiting groove.

[0012] Preferably, the fixed rod is movably mounted in the middle of the hinge main part, and the first fixed sleeve is fixedly mounted on the fixed rod.

[0013] Preferably, the first limiting sleeve is fixedly mounted on the fixed rod, the first movable sleeve is movably mounted on the fixed rod through the first limiting sleeve, and the second movable sleeve is movably mounted on the supporting rod through the second limiting sleeve.

[0014] Compared with the prior art, the utility model has the advantages that:

[0015] 1. The opening and closing mechanism can reinforce the hinge main part during long-term use, the first limiting sleeve on the fixed rod in the mechanism limits the first movable sleeve, the second limiting sleeve on the supporting rod limits the second movable sleeve when the supporting rod is driven by the hinge main part, the second movable sleeve drives the connecting rod to work, the first movable sleeve is moved on the fixed rod by the connecting rod to realize opening and closing, the multiple connecting rods reinforce the opening and closing part, thereby prolonging the service life of the device.

[0016] 2. Through the setting of the limiting mechanism, the connecting rod can be limited and supported, the recess is sealed by the limiting plate in the mechanism, the limiting slot on the limiting plate supports and limits the connecting rod during movement, and therefore the practicality of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments of the present application will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the contents of the embodiments of the present application and the drawings.

[0018] Figure 1 is a structural front view of the main body of the present application;

[0019] Figure 2 is a structural front view of the main body of the present application;

[0020] Figure 3 is a structural front view of the opening and closing mechanism of the present application;

[0021] Figure 4 is a structural sectional view of the limiting mechanism of the present application.

[0022] In the figure: 1, door frame main body; 2, hinge main body; 3, opening and closing mechanism; 31, fixed rod; 32, first fixed sleeve; 33, first limiting sleeve; 34, first movable sleeve; 35, connecting rod; 36, second movable sleeve; 37, supporting rod; 38, second fixed sleeve; 39, second limiting sleeve; 4, limiting mechanism; 41, fixed plate; 42, recess; 43, bolt; 44, limiting plate; 45, limiting slot. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described clearly and completely in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0024] Please refer to Figures 1-4 An embodiment provided by the present application:

[0025] The hinge main body 2 used in the present application is a product that can be directly purchased on the market, and its principle and connection mode are all prior art well known to those skilled in the art, so they will not be described here.

[0026] A protective door hinge device includes: a door frame body 1 and a hinge body 2. The hinge body 2 is provided on one side of the door frame body 1. A limiting mechanism 4 is provided on the hinge body 2. A fixing plate 41 is provided inside the limiting mechanism 4. A groove 42 is provided on the fixing plate 41, and a bolt 43 is provided on the fixing plate 41. A limiting plate 44 is provided on one side of the groove 42. A limiting groove 45 is provided on the limiting plate 44. An opening and closing mechanism 3 is provided on the hinge body 2. A fixing rod 31 is provided inside the opening and closing mechanism 3. A first fixing sleeve 32 is provided on the fixing rod 31, and a first limiting sleeve 33 is provided on the fixing rod 31. By setting this component, the opening and closing mechanism 3 can be limited and fixed by the limiting mechanism 4, and reinforced by the multiple connecting rods 35 inside the opening and closing mechanism 3.

[0027] As a further improvement of this utility model, a first movable sleeve 34 is movably installed on the fixed rod 31, and a connecting rod 35 is fixedly installed on the first movable sleeve 34. By setting this component, the two ends of the fixed rod 31 can be limited by the first fixed sleeve 32 on the fixed rod 31, and the first movable sleeve 34 can be driven to work by the connecting rod 35.

[0028] As a further improvement of this utility model, a second movable sleeve 36 is movably installed at one end of the connecting rod 35. The second movable sleeve 36 is provided with a support rod 37, and the second movable sleeve 36 is movably installed on the support rod 37. By setting this component, the connecting rod 35 can be driven to work through the second movable sleeve 36.

[0029] As a further improvement of this utility model, the support rod 37 is fixedly installed with second fixing sleeves 38 at both ends, and the support rod 37 is fixedly installed in the groove 42 through the second fixing sleeves 38. The support rod 37 is fixedly installed with a second limiting sleeve 39. By setting this component, the support rod 37 can be fixedly installed in the groove 42 through the second fixing sleeves 38 at both ends.

[0030] As a further improvement of this utility model, the fixing plate 41 is fixedly installed on the door frame body 1 by bolts 43, the limiting plate 44 is movably installed on the groove 42, and one end of the connecting rod 35 is attached to the limiting plate 44 through the limiting groove 45. By setting this component, the fixing plate 41 can be limited and fixed by the bolts on the fixing plate 41, and the groove 42 can be sealed by the limiting plate 44.

[0031] As a further improvement of this utility model, the fixing rod 31 is movably installed in the middle of the hinge body 2, and the first fixing sleeve 32 is fixedly installed on the fixing rod 31. By setting this component, the two ends of the fixing rod 31 can be limited by the first fixing sleeve 32.

[0032] As the further utility model, the first limiting sleeve 33 is fixedly installed on the fixed rod 31, the first movable sleeve 34 is movably installed on the fixed rod 31 through the first limiting sleeve 33, and the second movable sleeve 36 is movably installed on the supporting rod 37 through the second limiting sleeve 39, through the setting of the component, the first movable sleeve 34 can be supported and limited through the first limiting sleeve 33, and the second movable sleeve 36 can be supported and limited through the second limiting sleeve 39.

[0033] Working principle: when the protective door hinge connecting device needs to be used, the hinge body 2 is only installed on the door frame body 1 through the bolt 43, the hinge body on the other side is installed on the protective door through the bolt 43, the connecting rod 35 can be supported and limited through the limiting mechanism 4, the recess 42 is sealed through the limiting plate 44 in the mechanism, the connecting rod 35 is supported and limited during movement through the limiting groove 45 on the limiting plate 44, then the hinge body 2 can be reinforced during long-time use through the opening and closing mechanism 3, the first movable sleeve 34 is limited through the first limiting sleeve 33 on the fixed rod 31 in the mechanism, the supporting rod 37 is driven to work through the movable hinge body 2, the second movable sleeve 36 is limited through the second limiting sleeve 39 on the supporting rod 37, the connecting rod 35 can be driven to work through the second movable sleeve 36, the first movable sleeve 34 is moved on the fixed rod 31 through the connecting rod 35, so that the opening and closing work is realized, the opening and closing part is reinforced through the multiple connecting rods 35, and the service life of the device is improved.

[0034] The above is only a preferred embodiment of the utility model, and does not limit the utility model in any form; ordinary technical personnel in the industry can implement the utility model according to the drawings and the above description; however, some changes, modifications and equivalent changes made by those skilled in the art within the scope of the technical scheme of the utility model, using the disclosed technical content, are equivalent embodiments of the utility model; meanwhile, any equivalent change, modification and evolution of the above embodiment according to the essential technology of the utility model are still within the protection scope of the technical scheme of the utility model.

Claims

1. A shielded door link hinge apparatus comprising: Door frame body (1) and hinge body (2), one side of the door frame body (1) is provided with hinge body (2), characterized by: the hinge body (2) is provided with limiting mechanism (4), the limiting mechanism (4) is provided with fixed plate (41), the fixed plate (41) is provided with recess (42), and the fixed plate (41) is provided with bolt (43), one side of the recess (42) is provided with limiting plate (44), the limiting plate (44) is provided with limiting groove (45), and the hinge body (2) is provided with opening and closing mechanism (3), the opening and closing mechanism (3) is provided with fixed rod (31), the fixed rod (31) is provided with first fixed sleeve (32), and the fixed rod (31) is provided with first limiting sleeve (33).

2. A shielded door link hinge assembly according to claim 1, wherein: The first movable sleeve (34) is movably mounted on the fixed rod (31), and the connecting rod (35) is fixedly mounted on the first movable sleeve (34).

3. A shielded door link hinge assembly according to claim 2, wherein: The second movable sleeve (36) is movably mounted on one end of the connecting rod (35), and the supporting rod (37) is provided on the second movable sleeve (36), and the second movable sleeve (36) is movably mounted on the supporting rod (37).

4. A shielded door link hinge assembly according to claim 3 wherein: The second fixed sleeve (38) is fixedly mounted on both ends of the supporting rod (37), and the supporting rod (37) is fixedly mounted in the recess (42) through the second fixed sleeve (38), and the second limiting sleeve (39) is fixedly mounted on the supporting rod (37).

5. A shielded door link hinge assembly as defined in claim 1 wherein: The fixed plate (41) is fixedly mounted on the door frame body (1) by the bolt (43), the limiting plate (44) is movably mounted on the recess (42), and one end of the connecting rod (35) is combined with the limiting plate (44) through the limiting groove (45).

6. A shielded door link hinge assembly as defined in claim 1 wherein: The fixed rod (31) is movably mounted in the middle of the hinge body (2), and the first fixed sleeve (32) is fixedly mounted on the fixed rod (31).

7. A shielded door link hinge assembly as defined in claim 1 wherein: The first limiting sleeve (33) is fixedly mounted on the fixed rod (31), and the first movable sleeve (34) is movably mounted on the fixed rod (31) through the first limiting sleeve (33), and the second movable sleeve (36) is movably mounted on the supporting rod (37) through the second limiting sleeve (39).

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