Hinge structure of steel door

Abstract

The utility model discloses a hinge structure of a steel door, which relates to the field of steel doors and comprises a connecting column, two fixing components are movably sleeved outside the connecting column, a first hinge plate and a second hinge plate are fixedly connected to the outer sides of the two fixing components respectively, and a lubricating component is fixedly connected to the top of the connecting column. According to the steel door hinge, the fixing assembly located outside the connecting column is arranged, the fixing assembly is independently and fixedly connected with the first hinge plate and the second hinge plate, and the second hinge plate is connected with the steel door body and the door frame for use; the connecting column, the first hinge plate and the second hinge plate can be separated by disassembling the fixing assembly, so that the corresponding damaged position can be disassembled and replaced and then connected and installed again, overall disassembly is not needed, and maintenance and disassembly operation is convenient and fast.

Description

Technical Field

[0001] The utility model relates to the field of steel doors, in particular to a hinge structure of a steel door. Background Art

[0002] Steel doors consist of door frames and door leaves, both of which are made of stainless steel. The door frames are fixed to the wall, and the door leaves can rotate relative to the door frames. The two are connected by hinges. Door hinges are components that allow the door to rotate naturally and smoothly. They are usually composed of two hinge plates and a rotating shaft. The two hinge plate shells rotate along the rotating shaft to control the opening and closing of the door body.

[0003] The hinges of existing steel doors usually have two hinge plates fixedly installed on the door frame and the door body respectively. When any of the door body, door frame or door hinge is damaged and needs to be replaced or repaired, the hinge needs to be disassembled as a whole because it is a whole, which is more troublesome. At the same time, the hinge needs to be rotated frequently and also needs to withstand a certain force. Over time, the hinge is easily damaged or difficult to open and makes a harsh noise. Utility Model Content

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is:

[0005] A hinge structure for a steel door comprises a connecting column, the outer movably sleeved with two fixing components, the outer sides of the two fixing components are respectively fixedly connected with a first hinge plate and a second hinge plate, and the top of the connecting column is fixedly connected with a lubrication component.

[0006] A further improvement of the technical solution of the utility model is that: the fixing assembly includes a connecting ring and a snap-fit ​​frame, the connecting ring is movably sleeved on the outside of the connecting column, the outer side of the connecting ring is fixedly connected to a connecting plate, the snap-fit ​​frame is respectively fixedly connected to the inner sides of the first hinge plate and the second hinge plate, the snap-fit ​​frame is movably snap-fitted to the outside of the connecting plate, the inside of the connecting plate and the snap-fit ​​frame are both provided with fixing holes, and the internal threads of the fixing holes are connected with fixing bolts.

[0007] A further improvement of the technical solution of the utility model is that: a mounting groove is provided on the top of the connecting column, and an oil passageway is provided on the inner side of the mounting groove.

[0008] A further improvement of the technical solution of the utility model is that the lubrication assembly includes an oil box and a support column, the oil box is fixedly connected to the top of the connecting column, the oil box is communicated with the mounting groove, the support column is fixedly installed inside the mounting groove, the top of the support column is movably clamped with an oil-absorbing cotton plate, and the top of the oil box is threadedly installed with an end cover.

[0009] A further improvement of the technical solution of the utility model is that the connecting rings are staggeredly arranged on the outside of the connecting column, and the bottom thread of the connecting column is threadedly installed with a limiting bolt.

[0010] A further improvement of the technical solution of the utility model is that: mounting holes are provided inside the first hinge plate and the second hinge plate, and reinforcing ribs are fixedly connected to the front sides of the first hinge plate and the second hinge plate.

[0011] A further improvement of the technical solution of the utility model is that the lower part of the oil passage passes through the outer side of the connecting column.

[0012] A further improvement of the technical solution of the utility model is that: the support column is arranged outside the oil passage, and the oil-absorbing cotton plate is attached to the inner wall of the installation groove.

[0013] Due to the adoption of the above technical solution, the utility model has achieved the following technical progress compared with the prior art:

[0014] 1. The utility model provides a hinge structure for a steel door, which is provided with a fixing component located outside the connecting column, and is independently connected and fixed to the first hinge plate and the second hinge plate through the fixing component, and is connected to the steel door body and the door frame through the second hinge plate for use. When damage occurs, the connecting column, the first hinge plate and the second hinge plate can be separated by disassembling the fixing component, so that the corresponding damaged position can be disassembled and replaced and then connected and installed again, so that there is no need for overall disassembly, and the maintenance and disassembly operation is convenient.

[0015] 2. The utility model provides a hinge structure for a steel door. At the same time, a lubricating component arranged at the top of a connecting column can be regularly filled with lubricating oil. The internal lubricating oil slowly penetrates and flows into the outer side of the connecting column and is located between the fixed components for lubrication, thereby reducing wear and prolonging service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a structural schematic diagram of the hinge structure of the steel door of the utility model;

[0017] Figure 2 It is a structural schematic diagram of the back of the utility model;

[0018] Figure 3 It is the structural explosion diagram of the utility model;

[0019] Figure 4 It is a structural schematic diagram of the lubrication component of the utility model;

[0020] Figure 5 It is a schematic cross-sectional structure diagram of the lubrication component of the utility model.

[0021] In the figure: 1. connecting column; 11. mounting groove; 12. oil passage; 3. fixing assembly; 31. connecting ring; 32. connecting plate; 33. snap-fit ​​frame; 34. fixing hole; 35. fixing bolt; 4. first hinge plate; 5. second hinge plate; 6. lubrication assembly; 61. oil box; 62. supporting column; 63. oil-absorbing cotton plate; 64. end cover; 7. reinforcing ribs. DETAILED DESCRIPTION

[0022] The utility model is further described in detail below:

[0023] like Figures 1 to 5 As shown, the utility model provides a hinge structure for a steel door, including a connecting column 1, the external movable sleeve of the connecting column 1 is connected to two fixing components 3, the outer sides of the two fixing components 3 are respectively fixedly connected to a first hinge plate 4 and a second hinge plate 5, and the top of the connecting column 1 is fixedly connected to a lubrication component 6.

[0024] By providing a fixing component 3 located outside the connecting column 1, the fixing component 3 is independently connected and fixed to the first hinge plate 4 and the second hinge plate 5 respectively, and is connected to the steel door body and the door frame through the second hinge plate 5 for use. When damage occurs, the connecting column 1, the first hinge plate 4 and the second hinge plate 5 can be separated by disassembling the fixing component 3, so that the corresponding damaged position can be disassembled and replaced and then reconnected and installed, so that there is no need for overall disassembly, and the maintenance and disassembly operation is convenient. At the same time, the lubricating component 6 provided at the top of the connecting column 1 can be regularly filled with lubricating oil, and the internal lubricating oil slowly penetrates and flows into the outside of the connecting column 1 between the fixing components 3 for lubrication, thereby reducing wear and increasing service life.

[0025] like Figure 3 As shown, the fixing assembly 3 includes a connecting ring 31 and a snap-fit ​​frame 33. The connecting ring 31 is movably sleeved on the outside of the connecting column 1. The outer side of the connecting ring 31 is fixedly connected to a connecting plate 32. The snap-fit ​​frame 33 is respectively fixedly connected to the inner sides of the first hinge plate 4 and the second hinge plate 5. The snap-fit ​​frame 33 is movably snap-fitted to the outside of the connecting plate 32. The inside of the connecting plate 32 and the snap-fit ​​frame 33 are both provided with fixing holes 34. The internal threads of the fixing holes 34 are connected to fixing bolts 35.

[0026] By correspondingly clamping the clamping frame 33 connected to the first hinge plate 4 and the second hinge plate 5 through the inner side thereof to the outside of the corresponding connecting plate 32 connected to the outer side of the connecting ring 31, the fixing holes 34 opened on the connecting plate 32 and the clamping frame 33 are aligned, and the connecting plate 32 and the clamping frame 33 are connected and fixed by using fixing bolts 35 that are threadedly installed in the fixing holes 34 from the front side, thereby facilitating the disassembly and maintenance of individual parts and improving the convenience of disassembly.

[0027] like Figure 4 and Figure 5 As shown, a mounting groove 11 is formed at the top of the connecting column 1 , and an oil passage 12 is formed inside the mounting groove 11 .

[0028] The lubrication assembly 6 includes an oil box 61 and a support column 62. The oil box 61 is fixedly connected to the top of the connecting column 1. The oil box 61 is communicated with the mounting groove 11. The support column 62 is fixedly installed inside the mounting groove 11. The top of the support column 62 is movably clamped with an oil-absorbing cotton plate 63, and the top of the oil box 61 is threadedly installed with an end cover 64.

[0029] Lubricating oil is arranged in the oil box 61, and the lubricating oil slowly penetrates into the mounting groove 11 through the oil-absorbing cotton plate 63 arranged on the support column 62 and flows downward along the oil channel 12 connected to the mounting groove 11. By allowing the lubricating oil to flow to the outside of the connecting column 1 through the oil channel 12, it is located between the connecting ring 31 and the connecting column 1 for lubrication, thereby reducing wear during use and increasing service life.

[0030] like Figure 3 As shown, the connecting rings 31 are staggeredly arranged on the outside of the connecting column 1, and the bottom thread of the connecting column 1 is threadedly installed with a limiting bolt.

[0031] The connection ring 31 is limited by setting a limiting bolt at the bottom of the connection column 1 to facilitate assembly.

[0032] like Figure 3 As shown, mounting holes are provided inside the first hinge plate 4 and the second hinge plate 5 , and reinforcing ribs 7 are fixedly connected to the front sides of the first hinge plate 4 and the second hinge plate 5 .

[0033] The fixing assembly 3 is connected to the door body and the door frame respectively through the mounting holes, and the stability of the connection between the fixing assembly 3 and the first hinge plate 4 and the second hinge plate 5 is enhanced by the provision of the reinforcing ribs 7 .

[0034] like Figure 5 As shown, the lower part of the oil passage 12 passes through the outer side of the connecting column 1 .

[0035] The lubricating oil flows into the outside of the connecting column 1 and is located between the fixing components 3 for lubrication through the oil passage 12 below and through the outside of the connecting column 1 .

[0036] like Figure 5 As shown, the support column 62 is disposed outside the oil passage 12 , and the oil-absorbing cotton plate 63 is attached to the inner wall of the installation groove 11 .

[0037] The oil-absorbing cotton plate 63 disposed above the support column 62 is attached to the inner wall of the mounting groove 11 to filter the lubricating oil and slow down the flow rate of the lubricating oil.

[0038] The following is a detailed description of the working principle of the hinge structure of the steel door.

[0039] like Figures 1 to 5 As shown, the first hinge plate 4 and the second hinge plate 5 are connected through the snap-fit ​​frame 33 on the inner side thereof, and the snap-fit ​​frame 33 is correspondingly snapped to the outside of the corresponding connecting plate 32 connected to the outer side of the connecting ring 31, so that the fixing holes 34 opened on the connecting plate 32 and the snap-fit ​​frame 33 are aligned, and the connecting plate 32 and the snap-fit ​​frame 33 are connected and fixed by using the fixing bolts 35 to be threadedly installed in the fixing holes 34 from the front side, so that the first hinge plate 4 and the second hinge plate 5 are assembled with the connecting column 1, and the door body and the door frame are respectively connected by the first hinge plate 4 and the second hinge plate 5. When damage occurs, the connecting plate 32 and the locking frame 33 are disconnected by removing the corresponding fixing bolts 35 according to the damaged position, so that the connecting column 1 or the first hinge plate 4 and the second hinge plate 5 can be replaced separately and then reinstalled. The lubricating oil is arranged in the oil box 61. The lubricating oil slowly penetrates into the installation groove 11 through the oil-absorbing cotton plate 63 arranged on the support column 62 and flows downward along the oil passage 12 connected to the installation groove 11. By allowing the lubricating oil to flow to the outside of the connecting column 1 through the oil passage 12, it is located between the connecting ring 31 and the connecting column 1 for lubrication.

[0040] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not deviate from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A hinge structure for a steel door, comprising a connecting column (1), characterized in that: The outside of the connecting column (1) is movably sleeved with two fixing components (3), the outsides of the two fixing components (3) are respectively fixedly connected with a first hinge plate (4) and a second hinge plate (5), the top of the connecting column (1) is fixedly connected with a lubrication component (6), the fixing component (3) comprises a connecting ring (31) and a snap-fit ​​frame (33), the connecting ring (31) is movably sleeved on the outside of the connecting column (1), the outside of the connecting ring (31) is fixedly connected with a connecting plate (32), the snap-fit ​​frame (33) is respectively fixedly connected to the inside of the first hinge plate (4) and the second hinge plate (5), the snap-fit ​​frame (33) is movably snap-fitted to the outside of the connecting plate (32), the connecting plate (32) and The inside of the locking frame (33) is provided with a fixing hole (34), and the inside of the fixing hole (34) is threadedly connected with a fixing bolt (35). The top of the connecting column (1) is provided with a mounting groove (11), and the inner side of the mounting groove (11) is provided with an oil passage (12). The lubrication assembly (6) comprises an oil box (61) and a support column (62). The oil box (61) is fixedly connected to the top of the connecting column (1), the oil box (61) is connected to the mounting groove (11), and the support column (62) is fixedly installed inside the mounting groove (11). The top of the support column (62) is movably connected with an oil-absorbing cotton plate (63), and the top of the oil box (61) is threadedly installed with an end cover (64).

2. A hinge structure for a steel door according to claim 1, characterized in that: The connecting rings (31) are arranged in a staggered manner on the outside of the connecting column (1), and a limiting bolt is threadedly installed on the bottom of the connecting column (1).

3. The hinge structure of a steel door according to claim 1, characterized in that: The first hinge plate (4) and the second hinge plate (5) are provided with mounting holes inside, and the front sides of the first hinge plate (4) and the second hinge plate (5) are fixedly connected with reinforcing ribs (7).

4. The hinge structure of a steel door according to claim 1, characterized in that: The lower part of the oil passage (12) passes through the outer side of the connecting column (1).

5. The hinge structure of a steel door according to claim 1, characterized in that: The support column (62) is arranged outside the oil passage (12), and the oil-absorbing cotton plate (63) is attached to the inner wall of the installation groove (11).

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