A door hinge assembly

Abstract

This utility model discloses a door hinge assembly, including a top hinge group and a bottom hinge group. The top hinge group includes an upper bearing mounting seat and an upper shaft core mounting seat. An upper bearing is disposed in the upper bearing mounting seat, and an upper shaft core and an upper locking bushing are disposed in the upper shaft core mounting seat. A first tightening screw passes through the door leaf profile and the upper shaft core mounting seat and abuts against the upper locking bushing. The bottom hinge group includes a lower shaft sleeve mounting seat and a lower shaft core mounting seat. A lower shaft sleeve and a lower locking bushing are disposed in the lower shaft sleeve mounting seat, and a lower shaft core is disposed on the lower shaft core mounting seat. This door hinge assembly has the advantages of simple structure, convenient and quick installation and disassembly, high maintenance efficiency, and low replacement cost.

Description

Technical Field

[0001] This utility model relates to the technical field of door and window hardware accessories, specifically to a door hinge assembly. Background Technology

[0002] A hinged door is a door whose leaf is fixed to one side of the door frame by hinges and opens or closes by rotating horizontally along a vertical axis. With market development and technological updates, a new type of door hinge connection product, namely the floor hinge, has been introduced to the market to achieve both aesthetic and practical effects. However, the existing floor hinge's shaft core and bearing are generally fixed to the door leaf and door frame by a snap-fit ​​structure, and then the shaft core and bearing are assembled. This structure is not only complex and difficult to assemble, but also has low maintenance efficiency and high replacement costs, thus having certain limitations. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the existing technology and provide a door hinge assembly that is simple in structure, easy and quick to install and disassemble, highly efficient in maintenance, and low in replacement cost.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0005] A door hinge assembly includes a top hinge group and a bottom hinge group. The top hinge group includes an upper bearing mounting seat mounted on a door frame profile and an upper shaft core mounting seat mounted on a door leaf profile. An upper bearing is disposed in the upper bearing mounting seat, and an upper shaft core and an upper locking bushing are disposed in the upper shaft core mounting seat. A first fastening screw passes through the door frame profile and the upper bearing mounting seat, a second fastening screw passes through the door leaf profile and the upper shaft core mounting seat, and a first top tightening screw passes through the door leaf profile and the upper shaft core mounting seat and abuts against the upper locking bushing.

[0006] The ground pivot assembly includes a lower pivot sleeve mounting seat installed on the door leaf profile and a lower pivot core mounting seat installed on the door frame profile. The lower pivot sleeve mounting seat is provided with a lower pivot sleeve and a lower locking bushing. The lower pivot core mounting seat is provided with a lower pivot core. A third fastening screw passes through the door leaf profile and the lower pivot sleeve mounting seat.

[0007] As a further improvement to the above technical solution:

[0008] The door frame profile has a first mounting hole, the upper bearing mounting seat has a first threaded hole, and a first mounting plate is provided inside the door frame profile. The first fastening screw passes through the first mounting plate and the first mounting hole in sequence and is threadedly connected to the first threaded hole, so that the upper bearing mounting seat is fixedly installed on the door frame profile.

[0009] The door leaf profile has a second mounting hole, the upper shaft core mounting seat has a second threaded hole and a third threaded hole, the door leaf profile has a second mounting plate, the second fastening screw passes through the second mounting plate and the second mounting hole in sequence and is threadedly connected to the second threaded hole, so that the upper shaft core mounting seat is fixedly installed on the door leaf profile, and the first tightening screw passes through the second mounting plate and the second mounting hole in sequence and is threadedly connected to the third threaded hole, so that the first tightening screw abuts against the upper locking bushing.

[0010] The door leaf profile has a third mounting hole, the lower bushing mounting seat has a fourth threaded hole, the door leaf profile has a third mounting plate, the third fastening screw passes through the third mounting plate and the third mounting hole in sequence and is threadedly connected to the fourth threaded hole, so that the lower bushing mounting seat is fixedly installed on the door leaf profile.

[0011] The lower shaft core and the lower shaft core mounting base are integrally formed.

[0012] The upper shaft core mounting seat has a first notch in the vertical direction, and the lower shaft sleeve mounting seat has a second notch in the vertical direction.

[0013] Compared with the prior art, the advantages of this utility model are:

[0014] The door hinge assembly of this utility model includes a top hinge group and a bottom hinge group. The top hinge group includes an upper bearing mounting seat and an upper shaft core mounting seat. An upper bearing is installed in the upper bearing mounting seat, and an upper shaft core and an upper locking bushing are installed in the upper shaft core mounting seat. During assembly, the upper shaft core passes through the upper bearing. The upper locking bushing is locked in position within the upper shaft core mounting seat by a first tightening screw, which improves the connection stability between the upper shaft core and the upper bearing. The bottom hinge group includes a lower shaft sleeve mounting seat and a lower shaft core mounting seat. A lower shaft sleeve and a lower locking bushing are installed in the lower shaft sleeve mounting seat, and a lower shaft core is installed on the lower shaft core mounting seat. During assembly, the lower shaft core passes through the lower shaft sleeve, which improves the connection stability between the lower shaft sleeve and the lower shaft core. This assembly not only has a simple structure and improves the smoothness and stability of door opening and closing, but also allows for convenient and quick installation and disassembly, high maintenance efficiency, and low replacement cost. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the door hinge assembly.

[0016] Figure 2 This is a schematic diagram of the top shaft assembly.

[0017] Figure 3 This is a schematic diagram showing the connection between the upper bearing mounting base and the door frame profile.

[0018] Figure 4This is a schematic diagram showing the disassembly of the upper bearing mounting base and the door frame profile.

[0019] Figure 5 This is a schematic diagram showing the connection between the upper shaft mounting base and the door leaf profile.

[0020] Figure 6 This is a schematic diagram showing the disassembly of the upper shaft mounting base and the door leaf profile.

[0021] Figure 7 A structural schematic diagram of the upper shaft mounting base viewed from below.

[0022] Figure 8 This is a schematic diagram of the structure of the Earth Axis Group.

[0023] Figure 9 This is a schematic diagram showing the disassembly of the Earth Axis assembly.

[0024] Figure 10 This is a schematic diagram showing the connection between the lower bushing mounting base and the door leaf profile.

[0025] Figure 11 This is a structural schematic diagram of the lower bushing mounting base viewed from below.

[0026] Legend:

[0027] 100. Door frame profile; 200. Door leaf profile; 1. Top pivot assembly; 101. Upper bearing mounting seat; 102. Upper pivot core mounting seat; 103. Upper bearing; 104. Upper pivot core; 105. Upper locking bushing; 2. Ground pivot assembly; 201. Lower pivot sleeve mounting seat; 202. Lower pivot core mounting seat; 203. Lower pivot sleeve; 204. Lower locking bushing; 205. Lower pivot core; 3. First fastening screw; 4. Second fastening screw; 5. First tightening screw; 6. Third fastening screw; 7. First notch; 8. First mounting hole; 9. First threaded hole; 10. First mounting plate; 11. Second mounting hole; 12. Second threaded hole; 13. Third threaded hole; 14. Second mounting plate; 15. Third mounting hole; 16. Fourth threaded hole; 17. Second notch; 18. Third mounting plate. Detailed Implementation

[0028] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] like Figures 1 to 11As shown, the door hinge assembly of this embodiment includes a top hinge assembly 1 and a bottom hinge assembly 2. The top hinge assembly 1 includes an upper bearing mounting seat 101 mounted on the door frame profile 100 and an upper shaft core mounting seat 102 mounted on the door leaf profile 200. An upper bearing 103 is provided in the upper bearing mounting seat 101, and an upper shaft core 104 and an upper locking bushing 105 are provided in the upper shaft core mounting seat 102. A first fastening screw 3 passes through the door frame profile 100 and the upper bearing mounting seat 101, and a second fastening screw 4 passes through the door leaf profile 200 and the upper shaft core mounting seat 102. Between the seat 102, the first tightening screw 5 passes through the door leaf profile 200 and the upper shaft core mounting seat 102 and abuts against the upper locking bushing 105; the ground shaft assembly 2 includes a lower shaft sleeve mounting seat 201 mounted on the door leaf profile 200 and a lower shaft core mounting seat 202 mounted on the door frame profile 100. The lower shaft sleeve mounting seat 201 is provided with a lower shaft sleeve 203 and a lower locking bushing 204. The lower shaft core mounting seat 202 is provided with a lower shaft core 205. The third fastening screw 6 passes through the door leaf profile 200 and the lower shaft sleeve mounting seat 201. The door hinge assembly includes a top hinge group 1 and a bottom hinge group 2. The top hinge group 1 includes an upper bearing mounting seat 101 and an upper shaft core mounting seat 102. An upper bearing 103 is disposed in the upper bearing mounting seat 101, and an upper shaft core 104 and an upper locking bushing 105 are disposed in the upper shaft core mounting seat 102. During assembly, the upper shaft core 104 passes through the upper bearing 103, and the upper locking bushing 105 is locked in position within the upper shaft core mounting seat 102 by a first tightening screw 5, which can improve the connection between the upper shaft core 104 and the upper bearing 103. Stability; the ground pivot assembly 2 includes a lower pivot sleeve mounting base 201 and a lower pivot core mounting base 202. The lower pivot sleeve mounting base 201 is provided with a lower pivot sleeve 203 and a lower locking bushing 204. The lower pivot core mounting base 202 is provided with a lower pivot core 205. During assembly, the lower pivot core 205 passes through the lower pivot sleeve 203, which can improve the connection stability between the lower pivot sleeve 203 and the lower pivot core 205. It not only has a simple structure and improves the smoothness and stability of the door opening and closing, but also makes installation and disassembly convenient and quick, with high maintenance efficiency and low replacement cost.

[0030] Preferably, the door frame profile 100 has a first mounting hole 8, the upper bearing mounting seat 101 has a first threaded hole 9, and a first mounting plate 10 is provided inside the door frame profile 100. A first fastening screw 3 passes through the first mounting plate 10 and the first mounting hole 8 in sequence and is threadedly connected to the first threaded hole 9, so that the upper bearing mounting seat 101 is fixedly installed on the door frame profile 100. In this embodiment, the area of ​​the first mounting plate 10 is larger than the area of ​​the first mounting hole 8. During assembly, the outer side of the first mounting plate 10 abuts against the inner wall of the door frame profile 100, and the first fastening screw 3 passes through the first mounting plate 10 and is threadedly connected to the first threaded hole 9, which can effectively tighten the upper bearing mounting seat 101 and the door frame profile 100, thereby improving the stability of the upper bearing mounting seat 101 on the door frame profile 100.

[0031] Preferably, the door leaf profile 200 is provided with a second mounting hole 11, the upper shaft core mounting seat 102 is provided with a second threaded hole 12 and a third threaded hole 13, a second mounting plate 14 is provided inside the door leaf profile 200, the second fastening screw 4 passes through the second mounting plate 14 and the second mounting hole 11 in sequence and is threadedly connected to the second threaded hole 12 so that the upper shaft core mounting seat 102 is fixedly installed on the door leaf profile 200, and the first tightening screw 5 passes through the second mounting plate 14 and the second mounting hole 11 in sequence and is threadedly connected to the third threaded hole 13 so that the first tightening screw 5 abuts against the upper locking bushing 105. In this embodiment, the area of ​​the second mounting plate 14 is larger than the area of ​​the second mounting hole 11. During assembly, the outer side of the second mounting plate 14 abuts against the inner wall of the door leaf profile 200. The second fastening screw 4 passes through the second mounting plate 14 and is threadedly connected to the second threaded hole 12, which can play the role of pulling the upper shaft core mounting seat 102 and the door leaf profile 200 together. The connection stability of the upper shaft core mounting seat 102 on the door leaf profile 200 is good. The upper shaft core 104 and the upper locking bushing 105 are arranged sequentially from top to bottom in the upper shaft core mounting seat 102. The upper locking bushing 105 is threadedly connected to the upper shaft core mounting seat 102. The first tightening screw 5 passes through the second mounting plate 14 and is threadedly connected to the third threaded hole 13. The first tightening screw 5 abuts against the upper locking bushing 105 and tightens it, which can prevent the upper shaft core 104 from axially moving in the upper shaft core mounting seat 102.

[0032] Preferably, the door leaf profile 200 has a third mounting hole 15, the lower bushing mounting base 201 has a fourth threaded hole 16, the door leaf profile 200 has a third mounting plate 18, and the third fastening screw 6 passes through the third mounting plate 18 and the third mounting hole 15 in sequence and is threadedly connected to the fourth threaded hole 16 so that the lower bushing mounting base 201 is fixedly installed on the door leaf profile 200. In this embodiment, the area of ​​the third mounting plate 18 is larger than the area of ​​the third mounting hole 15. During assembly, the outer side of the third mounting plate 18 abuts against the inner wall of the door leaf profile 200. The third fastening screw 6 passes through the third mounting plate 18 and is threadedly connected to the fourth threaded hole 16, which can play the role of pulling the lower bushing mounting seat 201 and the door leaf profile 200 together. The connection stability of the lower bushing mounting seat 201 on the door leaf profile 200 is good. The lower locking bushing 204 and the lower bushing 203 in the lower bushing mounting seat 201 are arranged sequentially from top to bottom. The lower locking bushing 204 is threadedly connected to the lower bushing mounting seat 201, which can prevent the lower bushing 203 from axially moving in the lower bushing mounting seat 201.

[0033] Preferably, the lower shaft core 205 and the lower shaft core mounting base 202 are integrally formed. In this embodiment, the lower shaft core mounting base 202 can be fixedly installed on the door frame profile 100 by passing a fourth fastening screw between the door frame profile 100 and the lower shaft core mounting base 202, or the lower shaft core mounting base 202 can be fixedly installed on the door frame profile 100 by welding.

[0034] Preferably, the upper shaft core mounting base 102 has a first notch 7 vertically oriented inside, and the lower shaft sleeve mounting base 201 has a second notch 17 vertically oriented inside. In this embodiment, the outer wall of the upper locking bushing 105 has a protrusion, and the upper shaft core mounting base 102 has a first notch 7. When the upper locking bushing 105 is screwed tightly into the upper shaft core mounting base 102, the protrusion is located inside the first notch 7. At this time, the first tightening screw 5 passes through the first notch 7, so that the first tightening screw 5 abuts against the protrusion on the outer wall of the upper locking bushing 105, preventing the upper locking bushing 105 from axially impacting the upper shaft core mounting base 102. The lower locking bushing 204 also has a protrusion on its outer wall, and a second notch 17 is provided in the lower bushing mounting base 201. After the lower locking bushing 204 is screwed into the lower bushing mounting base 201, the protrusion is located in the second notch 17. At this time, the second tightening screw passes through the second notch 17, so that the second tightening screw abuts against the protrusion on the outer wall of the lower locking bushing 204, preventing the lower bushing 203 from axially moving in the lower bushing mounting base 201.

[0035] The above description is merely a preferred embodiment of this utility model, and the protection scope of this utility model is not limited to the above embodiments. For those skilled in the art, improvements and modifications obtained without departing from the technical concept of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A door hinge assembly, comprising a top hinge group (1) and a bottom hinge group (2), characterized in that, The top shaft assembly (1) includes an upper bearing mounting seat (101) installed on the door frame profile (100) and an upper shaft core mounting seat (102) installed on the door leaf profile (200). An upper bearing (103) is provided in the upper bearing mounting seat (101), and an upper shaft core (104) and an upper locking bushing (105) are provided in the upper shaft core mounting seat (102). A first fastening screw (3) passes through the door frame profile (100) and the upper bearing mounting seat (101), a second fastening screw (4) passes through the door leaf profile (200) and the upper shaft core mounting seat (102), and a first top tightening screw (5) passes through the door leaf profile (200) and the upper shaft core mounting seat (102) and abuts against the upper locking bushing (105). The ground pivot assembly (2) includes a lower pivot sleeve mounting seat (201) installed on the door leaf profile (200) and a lower pivot core mounting seat (202) installed on the door frame profile (100). The lower pivot sleeve mounting seat (201) is provided with a lower pivot sleeve (203) and a lower locking bushing (204). The lower pivot core mounting seat (202) is provided with a lower pivot core (205). A third fastening screw (6) passes between the door leaf profile (200) and the lower pivot sleeve mounting seat (201).

2. The door hinge assembly according to claim 1, characterized in that, The door frame profile (100) has a first mounting hole (8), the upper bearing mounting seat (101) has a first threaded hole (9), the door frame profile (100) has a first mounting plate (10), the first fastening screw (3) passes through the first mounting plate (10) and the first mounting hole (8) in sequence and is threadedly connected to the first threaded hole (9) so that the upper bearing mounting seat (101) is fixedly installed on the door frame profile (100).

3. The door hinge assembly according to claim 2, characterized in that, The door leaf profile (200) is provided with a second mounting hole (11), the upper shaft core mounting seat (102) is provided with a second threaded hole (12) and a third threaded hole (13), the door leaf profile (200) is provided with a second mounting plate (14), the second fastening screw (4) passes through the second mounting plate (14) and the second mounting hole (11) in sequence and is threadedly connected to the second threaded hole (12) so that the upper shaft core mounting seat (102) is fixedly installed on the door leaf profile (200), and the first tightening screw (5) passes through the second mounting plate (14) and the second mounting hole (11) in sequence and is threadedly connected to the third threaded hole (13) so that the first tightening screw (5) abuts against the upper locking bushing (105).

4. The door hinge assembly according to claim 3, characterized in that, The door leaf profile (200) has a third mounting hole (15), the lower bushing mounting base (201) has a fourth threaded hole (16), the door leaf profile (200) has a third mounting plate (18), the third fastening screw (6) passes through the third mounting plate (18) and the third mounting hole (15) in sequence and is threadedly connected to the fourth threaded hole (16) so that the lower bushing mounting base (201) is fixedly installed on the door leaf profile (200).

5. The door hinge assembly according to claim 4, characterized in that, The lower shaft core (205) and the lower shaft core mounting base (202) are integrally formed.

6. The door hinge assembly according to claim 5, characterized in that, The upper shaft core mounting base (102) has a first notch (7) in the vertical direction, and the lower shaft sleeve mounting base (201) has a second notch (17) in the vertical direction.

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