Hidden door and window hinge convenient to maintain

Abstract

The utility model relates to the technical field of door and window hinges, and discloses a hidden door and window hinge convenient to maintain, one side of a first hinge plate is provided with a hinge seat, one side of a second hinge plate is rotatably provided with a hinge body in the hinge seat, and the upper surfaces of the hinge body and the hinge seat are provided with shaft pins in a penetrating manner; grooves are symmetrically formed in the front surfaces of the first hinge plate and the second hinge plate, moving blocks are arranged in the grooves, limiting rods are connected to the upper surfaces of the moving blocks, and fixing holes are formed in the upper surfaces and the lower surfaces of the first hinge plate and the second hinge plate. The movable block moves in the groove, the spring is extruded to deform, at the moment, the first hinge plate and the second hinge plate can be mounted in the mounting groove formed in the inner side of the door and window, the movable block can be released after mounting to enable the spring to recover deformation, mounting of the door and window hinge is achieved, and practicability is good.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window hinges, in particular to a concealed door and window hinge which is easy to maintain. Background Art

[0002] Door and window hinges are an important component of doors and windows. They are mainly used to support the weight of doors and windows so that they can rotate open and close naturally and smoothly. They are mainly composed of a hinge seat and a hinge body. One end of the hinge body is connected to the door frame through a core shaft, and the other end is connected to the door leaf.

[0003] The Chinese patent discloses a new door and window hinge structure (authorization announcement number CN206158428U). The user of this patent technology fixes the movable hinge to the movable window frame of the door and window, directly slides the limit slider, and uses the locking screw to position it so that the limit baffle can resist the movable window frame, effectively adjusting the opening angle of the movable window frame, and the adjustment is convenient and easy to operate. The new door and window hinge structure is simple, the effect is obvious, the cost is low, and the practicality is strong.

[0004] However, most of the existing hinges are installed by bolts, which leads to slow installation and disassembly efficiency and inconvenient maintenance. For example, the above-mentioned reference document adopts the bolt installation method. In actual application, a large number of bolts are required when installing and disassembling the hinge, which leads to slow installation and disassembly and affects its maintenance. Therefore, those skilled in the art provide a concealed door and window hinge that is easy to maintain to solve the problems raised in the above-mentioned background technology. Utility Model Content

[0005] The purpose of the utility model is to provide a concealed door and window hinge that is easy to maintain, so as to solve the problems raised in the above-mentioned background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A hidden door and window hinge that is easy to maintain, includes a first hinge plate and a second hinge plate arranged on one side of the first hinge plate, a hinge seat is installed on one side of the first hinge plate, a hinge body is rotatably installed inside the hinge seat on one side of the second hinge plate, an axle pin is penetrated through the upper surfaces of the hinge body and the hinge seat, grooves are symmetrically provided on the front surfaces of the first hinge plate and the second hinge plate, a moving block is provided inside the groove, a limiting rod is connected to the upper surface of the moving block, and fixing holes are provided on the upper and lower surfaces of the first hinge plate and the second hinge plate.

[0008] As a further solution of the utility model: a positioning hole is opened inside the hinge body, a locking hole is opened inside the hinge seat above the positioning hole, and both ends of the shaft pin pass through the interior of the positioning hole and extend into the interior of the locking hole.

[0009] As a further solution of the utility model: the radius of the locking hole is larger than the radius of the positioning hole, and the outside of the shaft pin is threadedly connected with a nut inside the locking hole.

[0010] As a further solution of the utility model: a fixing groove is provided inside the first hinge plate and the second hinge plate below the fixing hole, the fixing hole and the fixing groove are interconnected, and one end of the limiting rod is penetrated by the fixing hole.

[0011] As a further solution of the utility model: a limiting plate is arranged outside the limiting rod inside the fixing groove, and a spring is arranged outside the limiting rod below the limiting plate.

[0012] As a further solution of the utility model: the lower end of the spring is fixed to the inner end of the fixing groove, and the upper end of the spring is fixed to the lower end of the limiting plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The concealed door and window hinges are easy to maintain. The shaft pin is passed through the positioning holes opened in the hinge seat and the hinge body, and the shaft pin can be locked inside the lock hole by a nut, so as to achieve quick installation of the shaft pin. The structure is simple and easy to operate. The shaft pin can be easily installed and disassembled, so as to facilitate maintenance of the hinge, and it is practical.

[0015] 2. The hidden door and window hinges are easy to maintain. The moving block moves inside the groove, so that one end of the limit rod can enter the fixing hole and the spring can be squeezed and deformed. At this time, the first hinge plate and the second hinge plate can be installed in the installation groove opened on the inner side of the door and window. After installation, the moving block can be released to restore the spring to its original shape, so that the limit rod can pass through the fixing hole and be embedded in the limit hole opened in the door and window installation groove, thereby realizing the installation of the door and window hinges, which is very practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of the structure of hidden door and window hinges for easy maintenance;

[0017] Figure 2 A schematic diagram of the structure of the center axis pin of the hidden door and window hinge for easy maintenance;

[0018] Figure 3 A schematic diagram of the structure of the limit rod in a hidden door and window hinge for easy maintenance.

[0019] In the figure: 1. first hinge plate; 11. hinge seat; 2. second hinge plate; 21. hinge body; 3. moving block; 31. groove; 32. limiting rod; 33. fixing hole; 34. fixing slot; 35. limiting plate; 36. spring; 4. axle pin; 41. positioning hole; 42. locking hole. DETAILED DESCRIPTION

[0020] See also Figures 1 to 3 In the embodiment of the utility model, the concealed door and window hinge which is easy to maintain comprises a first hinge plate 1 and a second hinge plate 2 arranged on one side of the first hinge plate 1, a hinge seat 11 is installed on one side of the first hinge plate 1, a hinge body 21 is rotatably installed on one side of the second hinge plate 2 inside the hinge seat 11, an axle pin 4 is penetrated through the upper surfaces of the hinge body 21 and the hinge seat 11, grooves 31 are symmetrically provided on the front surfaces of the first hinge plate 1 and the second hinge plate 2, a moving block 3 is provided inside the groove 31, a limiting rod 32 is connected to the upper surface of the moving block 3, fixing holes 33 are provided on the upper and lower surfaces of the first hinge plate 1 and the second hinge plate 2, and the setting can be used to install and disassemble the axle pin 4 by using a nut, so as to facilitate the maintenance of the first hinge plate 1 and the second hinge plate 2, and at the same time, the limiting rod 32 is used to penetrate the fixing hole 33 to achieve the purpose of installing and disassembling the first hinge plate 1 and the second hinge plate 2.

[0021] exist Figure 2 Middle: The hinge body 21 is provided with a positioning hole 41 inside, and the hinge seat 11 is provided with a locking hole 42 above the positioning hole 41. Both ends of the shaft pin 4 pass through the interior of the positioning hole 41 and extend to the interior of the locking hole 42. The radius of the locking hole 42 is larger than the radius of the positioning hole 41. The outside of the shaft pin 4 is threadedly connected with a nut inside the locking hole 42. This arrangement utilizes the two ends of the shaft pin 4 to pass through the positioning hole 41 and extend to the interior of the locking hole 42. At the same time, the shaft pin 4 can be installed and used by locking the nut.

[0022] exist Figure 3 The first hinge plate 1 and the second hinge plate 2 are provided with a fixing groove 34 below the fixing hole 33, and the fixing hole 33 and the fixing groove 34 are connected to each other. One end of the limit rod 32 is penetrated by the fixing hole 33, and the outside of the limit rod 32 is provided with a limiting plate 35 inside the fixing groove 34, and the outside of the limit rod 32 is provided with a spring 36 below the limiting plate 35, the lower end of the spring 36 is fixed to the inner end of the fixing groove 34, and the upper end of the spring 36 is fixed to the lower end of the limiting plate 35. This setting utilizes the moving block 3 to move inside the groove 31, so that the spring 36 can be deformed. At this time, the first hinge plate 1 and the second hinge plate 2 can be installed in the installation groove opened on the inner side of the door and window, and after installation, the moving block 3 can be released to make the spring 36 recover its deformation, and make one end of the limit rod 32 pass through the fixing hole 33, so that the door and window hinge can be installed and used.

[0023] The working principle of the utility model is as follows: when the concealed door and window hinge which is easy to maintain is used, firstly, one end of the axle pin 4 is passed through the positioning hole 41 provided inside the hinge seat 11 and the hinge body 21, and extended to the inside of the lock hole 42, at this time, the axle pin 4 is fixed by the nut to realize the installation and use of the hinge seat 11 and the hinge body 21, when the first hinge plate 1 and the second hinge plate 2 are installed, at this time, the first hinge plate 1 and the second hinge plate 2 can be installed into the installation groove provided inside the door and window, before installation, the moving block 3 can be moved inside the groove 31, so that one end of the limiting rod 32 can enter the fixing hole 33, and the spring 36 can be squeezed and deformed, at this time, the first hinge plate 1 and the second hinge plate 2 are installed, after installation, the moving block 3 can be released to make the spring 36 restore the deformation, and then the limiting rod 32 can pass through the fixing hole 33 and be embedded into the limiting hole provided inside the door and window installation groove, so as to realize the installation of the door and window hinge, which has good practicality.

[0024] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A concealed door and window hinge that is easy to maintain, comprising a first hinge plate (1) and a second hinge plate (2) arranged on one side of the first hinge plate (1), characterized in that: A hinge seat (11) is installed on one side of the first hinge plate (1), and a hinge body (21) is rotatably installed inside the hinge seat (11) on one side of the second hinge plate (2). An axle pin (4) is provided through the upper surfaces of the hinge body (21) and the hinge seat (11). Grooves (31) are symmetrically provided on the front surfaces of the first hinge plate (1) and the second hinge plate (2). A moving block (3) is provided inside the groove (31). A limiting rod (32) is connected to the upper surface of the moving block (3). Fixing holes (33) are provided on the upper and lower surfaces of the first hinge plate (1) and the second hinge plate (2).

2. The easy-to-maintain concealed door and window hinge according to claim 1, characterized in that: The hinge body (21) is provided with a positioning hole (41) inside, the hinge seat (11) is provided with a locking hole (42) above the positioning hole (41), and both ends of the shaft pin (4) pass through the positioning hole (41) and extend to the locking hole (42).

3. The easy-to-maintain concealed door and window hinge according to claim 2, characterized in that: The radius of the locking hole (42) is larger than the radius of the positioning hole (41), and the outside of the shaft pin (4) is threadedly connected to a nut inside the locking hole (42).

4. The easy-to-maintain concealed door and window hinge according to claim 1, characterized in that: A fixing groove (34) is provided inside the first hinge plate (1) and the second hinge plate (2) below the fixing hole (33); the fixing hole (33) and the fixing groove (34) are interconnected; and one end of the limiting rod (32) is penetrated by the fixing hole (33).

5. The easy-to-maintain concealed door and window hinge according to claim 4, characterized in that: A limiting plate (35) is arranged outside the limiting rod (32) and inside the fixing groove (34), and a spring (36) is arranged outside the limiting rod (32) and below the limiting plate (35).

6. The easy-to-maintain concealed door and window hinge according to claim 5, characterized in that: The lower end of the spring (36) is fixed to the inner end of the fixing groove (34), and the upper end of the spring (36) is fixed to the lower end of the limiting plate (35).

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