Antitheft door hinge with door closer

Abstract

The utility model relates to the technical field of hinges, and discloses an anti-theft door hinge with a door closer, which comprises a door frame, the inner wall of the door frame is rotatably connected with a door body, the outer wall of the door frame is fixedly provided with a positioning frame, the outer wall of the positioning frame is fixedly provided with a connecting strip, the outer wall of the connecting strip is provided with a mounting groove, and the door closer is arranged in the mounting groove. And a positioning plate is fixedly assembled on the inner wall of the mounting groove. By arranging the door frame, the door body, the connecting strip, the positioning frame, the strong extension spring, the positioning plate, the air pipe, the piston and the sleeve, when the door body rotates, the connecting rod can stretch the strong extension spring, so that air between the sleeve and the piston is exhausted, and the door body can continuously rotate; and the sleeve is refilled with gas by utilizing the elasticity of the strong extension spring to push the door body to automatically reset, so that the effect of automatically closing the door is achieved, a user does not need to manually close the door, and the practicability and functionality of the hinge are improved.

Description

Technical Field

[0001] The utility model relates to the field of hinge technology, and is specifically an anti-theft door hinge with a door closer. Background Art

[0002] A hinge is a component used to connect the door body and the door frame. It can ensure that the door body can be rotated after installation, thereby isolating the indoor and outdoor areas. The anti-theft door can have a better anti-theft effect after being connected to the door frame with a hinge.

[0003] Although the existing hinges can connect the door body and the door frame during use, the existing hinges are not provided with a structure for automatically closing the door body. Therefore, a door closer needs to be installed or the user needs to close the door manually, which reduces the practicality and functionality of the existing hinges. For this reason, we propose an anti-theft door hinge with a door closer. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides an anti-theft door hinge with a door closer, which has the advantages of strong practicality, strong functionality and a wider rotation range, and solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solution: a anti-theft door hinge with a door closer, comprising a door frame, the inner wall of the door frame is rotatably connected to the door body, the outer wall of the door frame is fixedly equipped with a positioning frame, the outer wall of the positioning frame is fixedly equipped with a connecting strip, the outer wall of the connecting strip is provided with a mounting groove, the inner wall of the mounting groove is fixedly equipped with a positioning plate, the outer wall of the positioning plate is provided with a bevel gear 1, the outer wall of the bevel gear 1 is rotatably connected to a shell, the inner wall of the shell is rotatably connected to a bevel gear 2, the inner wall of the positioning frame is fixedly equipped with a sleeve, the outer wall of the sleeve is penetrated by an air pipe until the inner wall of the sleeve, the end of the sleeve away from the bevel gear 2 is provided with a mounting cylinder, the inner wall of the mounting cylinder is sleeved with a strong tension spring, the end of the strong tension spring close to the sleeve is fixedly equipped with a connecting rod, the end of the connecting rod is fixedly equipped with a push plate, and the outer wall of the connecting rod is fixedly sleeved with a piston.

[0006] As a preferred technical solution of the utility model: a positioning groove is opened on the outer wall of the positioning plate, the number of the bevel gears is two, the outer wall of one bevel gear is fixedly assembled with the inner wall of the positioning groove, and the outer wall of the other bevel gear is rotatably connected with the inner wall of the positioning groove.

[0007] As a preferred technical solution of the utility model: the outer wall of the bevel gear one is meshed with the outer wall of the bevel gear two, the number of the connecting strips is two, and the two connecting strips are rotationally connected through the bevel gear one and the bevel gear two.

[0008] As a preferred technical solution of the utility model: the outer wall of the piston is tightly fitted with the inner wall of the sleeve, the number of the air pipes is two, the inner wall of one of the air pipes is provided with an air outlet valve, and the inner wall of the other air pipe is provided with an air inlet valve.

[0009] As a preferred technical solution of the present invention, the outer wall of the push plate is closely fitted with the outer wall of the door body, and the outer wall of the connecting rod is slidably connected to the inner wall of the mounting cylinder.

[0010] As a preferred technical solution of the utility model: the connecting rod and the push plate are both made of galvanized iron metal, the interior of the sleeve is connected to the outside through an air pipe, and the push plate can also be arranged to be rotatably connected to the door body.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The anti-theft door hinge with door closer has a door frame, door body, connecting strip, positioning frame, strong tensile spring, positioning plate, air pipe, piston and sleeve structure. When the door body rotates, the connecting rod will stretch the strong tensile spring, so that the air between the sleeve and the piston is discharged, so that the door body can continue to rotate. After the user releases the door body, the elasticity of the strong tensile spring is used to refill the sleeve with gas and push the door body to automatically reset, thereby achieving the effect of automatic door closing. The user does not need to close the door manually, which improves the practicality and functionality of the hinge.

[0013] 2. The anti-theft door hinge with door closer, through the provision of bevel gear 1, bevel gear 2, shell, and positioning plate structure, enables the bevel gear 1 and bevel gear 2 connected to the door body to rotate when the door body rotates, thereby ensuring that the door body can continue to rotate up to 180°, thereby increasing the range of rotation of the door body, facilitating users to quickly pass through the door body, and thereby increasing the operating range of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a side view of the structure of the utility model;

[0016] Figure 3 It is a schematic diagram of the partial cross-section structure of the utility model;

[0017] Figure 4 This is a structural schematic diagram of a helical gear of the utility model.

[0018] In the figure: 1. door frame; 2. door body; 3. connecting strip; 4. positioning frame; 5. push plate; 6. sleeve; 7. mounting cylinder; 8. connecting rod; 9. bevel gear 1; 10. housing; 11. mounting groove; 12. bevel gear 2; 13. positioning plate; 14. air pipe; 15. piston; 16. strong tension spring. DETAILED DESCRIPTION

[0019] 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.

[0020] See also Figure 1-4 A theft-proof door hinge with a door closer comprises a door frame 1, the inner wall of the door frame 1 is rotatably connected to a door body 2, the outer wall of the door frame 1 is fixedly equipped with a positioning frame 4, the outer wall of the positioning frame 4 is fixedly equipped with a connecting strip 3, the outer wall of the connecting strip 3 is provided with a mounting groove 11, the inner wall of the mounting groove 11 is fixedly equipped with a positioning plate 13, the outer wall of the positioning plate 13 is provided with a bevel gear 1 9, the outer wall of the bevel gear 1 9 is rotatably connected to a shell 10, the inner wall of the shell 10 is rotatably connected to a bevel gear 2 12, the inner wall of the positioning frame 4 is fixedly equipped with a sleeve 6, the outer wall of the sleeve 6 is penetrated by an air pipe 14 until the inner wall of the sleeve 6, the end of the sleeve 6 away from the bevel gear 2 12 is provided with a mounting tube 7, the inner wall of the mounting tube 7 is sleeved with a strong tension spring 16, the end of the strong tension spring 16 close to the sleeve 6 is fixedly equipped with a connecting rod 8, the end of the connecting rod 8 is fixedly equipped with a push plate 5, and the outer wall of the connecting rod 8 is fixedly sleeved with a piston 15.

[0021] In the above structure, through the door frame 1, door body 2, connecting strip 3, positioning frame 4, push plate 5, sleeve 6, installation tube 7, and connecting rod 8 structure, when the user rotates the door body 2, the push plate 5 is fitted with the door body 2 to make the door body 2 push the push plate 5 together with the connecting rod 8 to move toward the sleeve 6 due to the change in angle, so that the connecting rod 8 stretches the strong tension spring 16 and the piston 15 squeezes out the air inside the sleeve 6, and then discharges it through the air pipe 14. When the user releases the door body 2, the elasticity of the strong tension spring 16 is used to pull back the connecting rod 8, and at the same time, the piston 15 and sleeve 6 are used to extract the outside air, so that the sleeve 6 is refilled with air and the door body 2 is automatically reset, thereby achieving the effect of automatic door closing, without the need for the user to manually close the door, thereby improving the practicality of the hinge.

[0022] In a preferred embodiment: a positioning groove is formed on the outer wall of the positioning plate 13, there are two bevel gears 9, the outer wall of one bevel gear 9 is fixedly assembled with the inner wall of the positioning groove, and the outer wall of the other bevel gear 9 is rotatably connected with the inner wall of the positioning groove.

[0023] In the above structure, through the bevel gear 1 9 and the bevel gear 2 12 structure, when the user sets the push plate 5 and the door body 2 to a rotationally connected state, the rotation of the door body 2 can be used to make the push plate 5 push the connecting rod 8 to lengthen the strong tension spring 16. At this time, the connection state between the push plate 5 and the door body 2 can ensure that the door body 2 continues to rotate. When the bevel gear 1 9 rotates when the door body 2 rotates, it will drive the bevel gear 2 12 to rotate, so that the door body 2 can rotate 180°, thereby increasing the range that the door body 2 can be opened, making it convenient for the user to pass through the door body 2 more quickly, and increasing the operating range of the hinge.

[0024] In a preferred embodiment, the outer wall of the bevel gear 1 9 meshes with the outer wall of the bevel gear 2 12 , the number of the connecting bars 3 is two, and the two connecting bars 3 are rotationally connected through the bevel gear 1 9 and the bevel gear 2 12 .

[0025] In the above structure, by setting the bevel gear 1 9, bevel gear 2 12, and connecting strip 3 structure, the user can rotate the door body 2 180° during the operation of the hinge, thereby increasing the user's activity area through the door body 2, thereby improving the operating range of the hinge, and facilitating the user to pass through the door body 2 more quickly.

[0026] In a preferred embodiment, the outer wall of the piston 15 fits tightly with the inner wall of the sleeve 6 , there are two air pipes 14 , an air outlet valve is disposed on the inner wall of one air pipe 14 , and an air inlet valve is disposed on the inner wall of the other air pipe 14 .

[0027] In the above structure, through the set sleeve 6 and piston 15 structure, when the connecting rod 8 is stretching the strong tension spring 16, the piston 15 is moved toward the push plate 5 to make the air between the piston 15 and the sleeve 6 be expelled to the outside of the sleeve 6. When the user releases the door body 2, the elasticity of the strong tension spring 16 is used to re-extract the high-pressure air, so that the push plate 5 can push the door body 2 to reset, thereby playing the role of a door closer, and there is no need for the user to manually close the door, thereby improving the practicality of the hinge.

[0028] In a preferred embodiment, the outer wall of the push plate 5 is closely fitted with the outer wall of the door body 2 , and the outer wall of the connecting rod 8 is slidably connected to the inner wall of the mounting cylinder 7 .

[0029] In the above structure, through the installation tube 7 and the connecting rod 8 structure, when the user rotates the door body 2, the connecting rod 8 is used to stretch the strong tension spring 16, and the installation tube 7 can ensure that the strong tension spring 16 cannot produce position displacement, so that the strong tension spring 16 can only be extended, thereby utilizing the elasticity of the strong tension spring 16 to automatically pull back the connecting rod 8 to automatically close the door body 2, thereby improving the precise matching of the internal accessories of the hinge.

[0030] In a preferred embodiment, the connecting rod 8 and the push plate 5 are both made of galvanized iron metal, the interior of the sleeve 6 is connected to the outside through the air pipe 14, and the push plate 5 can also be arranged to be rotatably connected to the door body 2.

[0031] In the above structure, the galvanized iron metal has the characteristics of hardness and wear resistance, which can ensure the wear of the push plate 5 and the connecting rod 8 caused by rotation and friction during operation of the hinge, thereby extending the service life of the two. At the same time, the galvanized iron metal also has the characteristic of low cost, thereby reducing the production cost of the hinge. The user can set the connection relationship between the push plate 5 and the door body 2 according to his own usage. When the required activity area is small, the push plate 5 and the door body 2 can be directly overlapped, so there is no need to set a rotational connection between the push plate 5 and the door body 2, which improves the user's installation efficiency of the hinge and the door body 2. When the required area is large, the push plate 5 and the door body 2 can be in a rotationally connected state, so that the push plate 5 is always pushed by the door body 2 during the rotation of the door body 2, and the connecting rod 8 continues to stretch the strong tension spring 16, so as to achieve the effect of rotating the door body 2 180°, thereby increasing the rotation range of the door body 2.

[0032] Working principle: First, after the hinge is installed, when the user rotates the door body 2, the push plate 5 is pushed by the rotation of the door body 2, so that the push plate 5 drives the connecting rod 8 to lengthen the strong tension spring 16, and at this time the piston 15 will slide along the inner wall of the sleeve 6 to squeeze out the air between the sleeve 6 and the piston 15. When the user releases the door body 2, the elasticity of the strong tension spring 16 is used to pull back the connecting rod 8 to reset the piston 15, so that the air is refilled between the piston 15 and the sleeve 6, and the door body 2 is closed again under the push of the push plate 5, achieving the effect of automatic door closing. When the door body 2 and the push plate 5 are in a state of rotational connection, the user continues to rotate the door body 2 to 180°, thereby increasing the rotation range of the door body 2, and making it easier for the user to pass through the door body 2 more quickly.

[0033] Although the 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 burglary-proof door hinge with a door closer, comprising a door frame (1), characterized in that: The inner wall of the door frame (1) is rotatably connected to the door body (2); the outer wall of the door frame (1) is fixedly equipped with a positioning frame (4); the outer wall of the positioning frame (4) is fixedly equipped with a connecting strip (3); the outer wall of the connecting strip (3) is provided with a mounting groove (11); the inner wall of the mounting groove (11) is fixedly equipped with a positioning plate (13); the outer wall of the positioning plate (13) is provided with a bevel gear 1 (9); the outer wall of the bevel gear 1 (9) is rotatably connected to a housing (10); the inner wall of the housing (10) is rotatably connected to a bevel gear 2 (12); The inner wall of the positioning frame (4) is fixedly equipped with a sleeve (6), the outer wall of the sleeve (6) is penetrated by an air pipe (14) until it reaches the inner wall of the sleeve (6), the end of the sleeve (6) away from the second bevel gear (12) is provided with a mounting tube (7), the inner wall of the mounting tube (7) is sleeved with a strong tension spring (16), the end of the strong tension spring (16) close to the sleeve (6) is fixedly equipped with a connecting rod (8), the end of the connecting rod (8) is fixedly equipped with a push plate (5), and the outer wall of the connecting rod (8) is fixedly sleeved with a piston (15).

2. The anti-theft door hinge with door closer according to claim 1, characterized in that: The outer wall of the positioning plate (13) is provided with a positioning groove, and the number of the bevel gears (9) is two, the outer wall of one bevel gear (9) is fixedly assembled with the inner wall of the positioning groove, and the outer wall of the other bevel gear (9) is rotatably connected with the inner wall of the positioning groove.

3. The anti-theft door hinge with door closer according to claim 1, characterized in that: The outer wall of the bevel gear one (9) is meshed with the outer wall of the bevel gear two (12), the number of the connecting bars (3) is two, and the two connecting bars (3) are rotationally connected through the bevel gear one (9) and the bevel gear two (12).

4. The anti-theft door hinge with door closer according to claim 1, characterized in that: The outer wall of the piston (15) is tightly fitted with the inner wall of the sleeve (6); there are two air pipes (14); an air outlet valve is provided on the inner wall of one of the air pipes (14); and an air inlet valve is provided on the inner wall of the other air pipe (14).

5. The anti-theft door hinge with door closer according to claim 1, characterized in that: The outer wall of the push plate (5) is tightly fitted with the outer wall of the door body (2), and the outer wall of the connecting rod (8) is slidably connected with the inner wall of the mounting tube (7).

6. The anti-theft door hinge with door closer according to claim 1, characterized in that: The connecting rod (8) and the push plate (5) are both made of galvanized iron metal. The interior of the sleeve (6) is connected to the outside through an air pipe (14). The push plate (5) can also be arranged to be rotatably connected to the door body (2).

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