Adjustable hinge with bearing

Abstract

The utility model provides an adjustable hinge with a bearing, which belongs to the field of building hardware and comprises a rotating shaft, a first hinge sleeved on the rotating shaft and a second hinge rotationally sleeved on the rotating shaft through the bearing, and the first hinge and the second hinge are both provided with rotating holes matched with the rotating shaft in a sleeved mode. The rotating shaft is sleeved with the rotating hole, an oil storage groove is formed in the inner wall of the rotating hole of the second hinge body and filled with lubricating oil, an oil storage groove is formed in the shaft hole of the second hinge body and filled with lubricating oil, so that rotation matching of the second hinge body and the rotating shaft is smoother, and the stability and the upper bearing limit of the hinge are improved; the maintenance frequency is reduced, and the service life is prolonged.

Description

Technical Field

[0001] This utility model belongs to the field of architectural hardware, and in particular relates to an adjustable hinge with bearing. Background Technology

[0002] A hinge is a device used for connection or rotation, allowing doors, covers, or other swinging parts to be opened or closed. It typically consists of a pair of metal leaf blades connected by a pin. Currently, traditional hinges on the market generally consist of two hinge blades, a pin, and a washer, and are installed on door / window sashes and frames with screws. However, for heavy doors and windows with large dimensions and weight, traditional hinge structures can cause the door / window sash to sag and tilt to the ground after prolonged use due to gravity, rendering them unusable. Furthermore, existing hinges are fixed connections and cannot be adjusted after production. This places certain requirements on the manufacturing and installation precision of both the products using hinges (such as doors and windows) and the hinges themselves, resulting in a low tolerance for error. Any dimensional deviation necessitates disassembly and reinstallation, affecting installation efficiency and quality. Therefore, Chinese utility model patent CN216076749U discloses a high-load-bearing adjustable hinge. This hinge allows for fine-tuning of the vertical distance between the second hinge and the vertical adjustment seat by rotating the vertical adjustment bolt; and fine-tuning of the left and right distance by rotating the horizontal adjustment bolt to adjust the swing angle of the eccentric bushing. However, after prolonged use, the rotating parts of this hinge structure are prone to jamming due to lack of lubrication, affecting the user experience and shortening its lifespan. This is particularly noticeable in applications such as heavy doors and windows where friction is a significant factor, thus requiring frequent maintenance and incurring high maintenance costs. Summary of the Invention

[0003] In view of the above-mentioned problems in the existing technology, the present invention provides an adjustable hinge with a bearing, including a rotating shaft, a first hinge sleeved on the rotating shaft, and a second hinge rotatably sleeved on the rotating shaft via the bearing. Both the first and second hinges are provided with a rotating hole for fitting with the rotating shaft. The rotating shaft is sleeved in the rotating hole. An oil reservoir is provided on the inner wall of the rotating hole of the second hinge, and the oil reservoir is filled with lubricating oil.

[0004] The oil storage tank has multiple parallel oil storage tanks that extend axially along the rotating hole. The multiple oil storage tanks are evenly spaced and arranged in a circular pattern. The cross-section of the oil storage tank is semi-circular or semi-elliptical.

[0005] Both the first hinge and the second hinge are provided with a second mounting hole, and a mounting bolt is installed on the second mounting hole and a steel pressure washer is fixedly connected to it through the mounting bolt; both the first hinge and the second hinge are provided with a mounting hook on the side away from the rotation axis for locking and fixing the first hinge or the second hinge.

[0006] Both the first hinge and the second hinge are provided with first mounting holes for fixing the first hinge or the second hinge using a self-tapping fixing structure. The first mounting holes allow the hinge to be directly fixed to the door and window profiles, providing another installation method for the hinge and improving its flexibility of use.

[0007] In this design, a bearing is fixedly installed at each end of the rotating hole of the second hinge. The two bearings respectively block the two ends of the oil reservoir, and the second hinge is rotatably sleeved on the rotating shaft through the two bearings.

[0008] The adjustable hinge with bearing further includes an upper and lower adjustment seat. The first hinge, the second hinge, and the upper and lower adjustment seat are arranged in a top-to-bottom sequence opposite to each other. The upper and lower adjustment seat is threadedly connected with an upper and lower adjustment bolt. The top of the upper and lower adjustment bolt extends operably out of the upper and lower adjustment seat, and when the top of the upper and lower adjustment bolt extends out, it can contact the lower surface of the second hinge.

[0009] The top opening of the rotating hole of the first hinge and the bottom opening of the rotating hole of the second hinge are both fixedly snapped together with a bottom cover.

[0010] The second mounting hole of the second hinge is a strip hole. The second hinge and the corresponding steel pressure washer slide in a sliding fit. The steel pressure washer is the second steel pressure washer. The lower part of the second steel pressure washer extends out of the second hinge and is fixedly connected to the upper and lower adjustment seat by bolts.

[0011] The first hinge has a swing sleeve inside its rotating hole. The swing sleeve has a shaft hole that matches the rotating shaft, and the shaft hole is misaligned with the axis of the swing sleeve. A limit groove is provided on one side of the swing sleeve. The center of the limit groove and the center of the shaft hole are located on opposite sides of the axis of the swing sleeve, and the line connecting the midpoint of the limit groove and the center of the shaft hole passes through the axis of the swing sleeve. A limit protrusion matching the limit groove is provided on the inner wall of the rotating hole of the first hinge. The swing sleeve is fitted onto the rotating shaft through the shaft hole, and then fitted into the first hinge with the limit protrusion engaged in the limit groove. The limit protrusion and the limit groove are in clearance fit. The first hinge has a lateral adjustment screw hole. The extension direction of the lateral adjustment screw hole is perpendicular to the line connecting the midpoint of the limit groove and the center of the shaft hole. The lateral adjustment screw hole passes through the swing sleeve and the rotating shaft, and a lateral adjustment bolt is threaded into the lateral adjustment screw hole.

[0012] The rotating shaft has an integrally formed limiting seat in the middle. The upper diameter of the limiting seat is larger than the diameter of the rotating hole of the first hinge, and the lower part of the limiting seat is rotatably fitted into the rotating hole of the second hinge.

[0013] The beneficial effects of this invention are as follows: An oil reservoir is provided in the shaft hole (i.e., the rotating part) of the second hinge, filled with lubricating oil. This makes the rotational engagement between the second hinge and the rotating shaft smoother, improving the hinge's stability and load-bearing capacity, reducing maintenance frequency, and extending its service life. Furthermore, by cooperating with the upper and lower adjusting seats and the upper and lower adjusting bolts, rotating the bolts and adjusting their extension length allows for fine-tuning of the hinge's vertical movement. Similarly, by cooperating with the swing sleeve and the lateral adjusting bolts, rotating the lateral adjusting bolts and adjusting the swing angle of the swing sleeve allows for fine-tuning of the hinge's horizontal movement. These vertical and horizontal adjustments can compensate for installation and production errors, improving installation efficiency and quality. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of an adjustable hinge with bearings.

[0015] Figure 2 This is a three-dimensional structural diagram of an adjustable hinge with a bearing at another angle.

[0016] Figure 3 yes Figure 2 Enlarged view of point A.

[0017] Figure 4 It is a bottom view with an adjustable hinge and bearing.

[0018] Figure 5 This is a top view of an adjustable hinge with bearings.

[0019] Figure 6 yes Figure 5 A schematic diagram of the cross-sectional structure at line AA.

[0020] Figure 7 This is a side view of a structure with an adjustable hinge and bearing.

[0021] Figure 8 yes Figure 7 A cross-sectional view of the structure at line BB.

[0022] Figure 9 yes Figure 7 A cross-sectional view of the structure at the CC line.

[0023] Figure 10 This is a schematic diagram of a structure with a bearing-equipped adjustable hinge that conceals the first and second hinges. Detailed Implementation

[0024] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments.

[0025] In the description of this utility model, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, a feature defined with "first" and "second" may explicitly or implicitly include one or more of that feature.

[0026] As attached Figure 1-10 The illustrated adjustable hinge with bearings includes a rotating shaft 1, and a first hinge 2 and a second hinge 3 fitted onto the rotating shaft 1. Both the first hinge 2 and the second hinge 3 are provided with rotating holes for fitting into the rotating shaft 1. The rotating shaft 1 is fitted into the rotating holes. The inner wall of the rotating hole of the second hinge 3 is provided with four oil reservoirs 4. The four oil reservoirs 4 extend parallel to each other along the axial direction of the rotating hole. The four oil reservoirs 4 are evenly spaced and arranged in a circular pattern. The two adjacent oil reservoirs 4 are spaced 90° apart. The cross-section of the oil reservoirs 4 is semi-circular. The oil reservoirs 4 are filled with lubricating oil, which makes the rotation between the rotating shaft 1 and the second hinge 3 smoother and more stable. A bearing 5 is fixedly installed at each end of the inner side of the rotating hole of the second hinge 3. The two bearings 5 ​​respectively seal the two ends of the oil reservoirs 4. The second hinge 3 is rotatably fitted onto the rotating shaft 1 through the two bearings 5. A limiting seat 6 is integrally formed in the middle of the rotating shaft 1. The upper diameter of the limiting seat 6 is larger than the diameter of the rotating hole of the first hinge 2. The lower part of the limiting seat 6 is rotatably fitted into the rotating hole of the second hinge 3. The top opening of the rotating hole of the first hinge 2 and the bottom opening of the rotating hole of the second hinge 3 are both fixedly snapped with a bottom cover 7. Both the first hinge 2 and the second hinge 3 are provided with two first mounting holes 8 for fixing the first hinge 2 or the second hinge 3 using a self-tapping fixing structure. The self-tapping fixing structure can be a self-tapping screw, automatic bolt, or rivet, etc., a conventional fixing structure that can drill holes in the profile and fix itself. The two first mounting holes 8 are arranged vertically. The first mounting holes 8 can realize the traditional hinge installation method, making the hinge more flexible in installation and meeting more installation needs. The first hinge 2 and the second hinge 3 have four or three second mounting holes 9 on one side of the two first mounting holes 8. Each second mounting hole 9 is fitted with a mounting bolt, and the same steel pressure washer is fixedly connected to it by the mounting bolt. Each of the first hinge 2 and the second hinge 3 has a steel pressure washer installed. The steel pressure washer installed on the first hinge 2 is the first steel pressure washer 10, and the steel pressure washer installed on the second hinge 3 is the second steel pressure washer 11. Each of the first hinge 2 and the second hinge 3 has a mounting hook 12 on the side away from the rotating shaft 1 for locking and fixing the first hinge 2 or the second hinge 3. The cooperation of the second mounting holes 9, the mounting bolts, and the steel pressure washer enables a second installation method.

[0027] In a preferred embodiment, the adjustable hinge with bearing 5 further includes an upper and lower adjustment seat 13. The first hinge 2, the second hinge 3, and the upper and lower adjustment seat 13 are arranged sequentially from top to bottom opposite each other. The upper and lower adjustment seat 13 is threadedly connected to an upper and lower adjustment bolt 14. The top of the upper and lower adjustment bolt 14 extends operably out of the upper and lower adjustment seat 13, and when the top of the upper and lower adjustment bolt 14 extends out, it can contact the lower surface of the second hinge 3. By rotating the upper and lower adjustment bolt 14, the distance between the second hinge 3 and the upper and lower adjustment seat 13 can be adjusted, thereby enabling fine-tuning of the upper and lower parts of the first hinge 2. The second mounting hole 9 of the second hinge 3 is a slotted hole. The second hinge 3 and the second steel pressure washer 11 slide together. The lower part of the second steel pressure washer 11 extends out of the second hinge 3 and is fixedly connected to the upper and lower adjustment seat 13 by bolts. A swing sleeve 15 is provided inside the rotation hole of the first hinge 2. The swing sleeve 15 has a shaft hole that matches the rotation shaft 1, and the shaft hole is misaligned with the axis of the swing sleeve 15. A limiting groove 16 is provided on one side of the swing sleeve 15. The center of the limiting groove 16 and the center of the shaft hole are located on both sides of the axis of the swing sleeve 15, and the line connecting the midpoint of the limiting groove 16 and the center of the shaft hole passes through the axis of the swing sleeve 15. A limiting protrusion 17 that matches the limiting groove 16 is provided on the inner wall of the rotation hole of the first hinge 2. The swing sleeve 15 is sleeved on the rotation shaft 1 through the shaft hole, and then sleeved on the... The first hinge 2 has a limiting protrusion 17 that engages with the limiting slot 16, with a clearance fit between the limiting protrusion 17 and the limiting slot 16. The first hinge 2 is provided with a lateral adjustment screw hole, the extension direction of which is perpendicular to the line connecting the midpoint of the limiting slot 16 and the center of the shaft hole. The lateral adjustment screw hole passes through the swing sleeve 15 and the rotating shaft 1, and is threadedly connected to a lateral adjustment bolt 18, so that the first hinge 2 is fitted onto the rotating shaft 1 without relative rotation. By rotating the lateral adjustment bolt 18, the swing angle of the swing sleeve 15 can be adjusted, thereby enabling fine-tuning of the first hinge 2 in the left and right lateral directions.

[0028] In the installation process of the hinge provided in this embodiment, the first steel pressure washer 10 and the second steel pressure washer 11 are first fixedly installed to the corresponding positions of the window frame and the window sash. Then, the first hinge 2 and the first steel pressure washer 10 are fixed with bolts. Next, the second hinge 3 and the second steel pressure washer 11 are connected with mounting bolts, but the mounting bolts are not tightened, so that the second hinge 3 and the second steel pressure washer 11 are in a relative sliding state. Then, the upper and lower adjustment seat 13 is fixed to the second steel pressure washer 11. At this time, the upper and lower adjustment bolt 14 can be rotated and its extension length can be changed according to the actual situation, so that the height of the second hinge 3 can be adjusted up and down to achieve a better installation effect. In addition, the swing angle of the swing sleeve 15 can be adjusted by rotating the horizontal adjusting bolt 18. With the setting of the horizontal adjusting bolt 18 and the swing sleeve 15, the first hinge 2 and the rotating shaft 1 can be fixedly connected, and the swing angle of the swing sleeve 15 can be adjusted by rotating the horizontal adjusting bolt 18. Since the rotating shaft 1 is fixed in the horizontal direction, the swing of the swing sleeve 15 can adjust the horizontal position of the first hinge 2 to a certain extent. Combined with the up and down adjustment of the second hinge 3, the door and window sash can be finely adjusted up and down and left and right during installation to achieve a better installation effect. The setting of the two bearings 5, together with the use of lubricating oil, enables the hinge to bear a greater load. It has the advantages of smooth and stable rotation, high load limit and long maintenance cycle.

[0029] The above-described embodiments are merely one implementation of this utility model, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A bearing-adjustable hinge, comprising a rotating shaft (1) and an up-and-down adjusting seat (13), a first hinge (2) sleeved on the rotating shaft (1) and a second hinge (3) rotatably sleeved on the rotating shaft (1) via a bearing (5), characterized in that, Both the first hinge (2) and the second hinge (3) are provided with rotating holes for fitting with the rotating shaft (1). The rotating shaft (1) is fitted into the rotating hole. An oil reservoir (4) is provided on the inner wall of the rotating hole of the second hinge (3). The oil reservoir (4) is filled with lubricating oil. There are multiple oil reservoirs (4), which extend parallel to each other along the axial direction of the rotating hole. The multiple oil reservoirs (4) are evenly spaced and arranged in a circular pattern. The cross-section of the oil reservoir (4) is semi-circular or semi-elliptical. Both the first hinge (2) and the second hinge (3) are provided with second mounting holes (9). The first hinge (2) and the second hinge (3) are each provided with a mounting hook (12) on the side away from the rotation axis (1) for locking and fixing the first hinge (2) or the second hinge (3); the first hinge (2), the second hinge (3) and the upper and lower adjustment seat (13) are arranged in order from top to bottom opposite each other, and the upper and lower adjustment seat (13) is threadedly connected with an upper and lower adjustment bolt (14). The top of the upper and lower adjustment bolt (14) extends operably out of the upper and lower adjustment seat (13), and the upper and lower adjustment bolt (14) is... When the top extends, it can contact the lower surface of the second hinge (3); a swing sleeve (15) is provided in the rotation hole of the first hinge (2), the swing sleeve (15) is provided with a shaft hole that matches the rotation shaft (1), and the shaft hole is misaligned with the axis of the swing sleeve (15), a limit groove (16) is provided on one side of the swing sleeve (15), the center of the limit groove (16) and the center of the shaft hole are respectively located on both sides of the axis of the swing sleeve (15), and the line connecting the midpoint of the limit groove (16) and the center of the shaft hole passes through the axis of the swing sleeve (15); the inner wall of the rotation hole of the first hinge (2) is provided with a limit groove (16) Matching limiting protrusion (17), swing sleeve (15) is sleeved on rotating shaft (1) through shaft hole, swing sleeve (15) is then sleeved in first hinge (2) and limiting protrusion (17) is inserted into limiting slot (16), limiting protrusion (17) and limiting slot (16) are clearance fit; the first hinge (2) is provided with a transverse adjustment screw hole, the extension direction of the transverse adjustment screw hole is perpendicular to the line connecting the midpoint of limiting slot (16) and the center of shaft hole, the transverse adjustment screw hole passes through swing sleeve (15) and rotating shaft (1), and the transverse adjustment screw hole is threaded with transverse adjustment bolt (18).

2. The adjustable hinge with bearing according to claim 1, characterized in that, Both the first hinge (2) and the second hinge (3) are provided with a first mounting hole (8) for fixing the first hinge (2) or the second hinge (3) using a self-tapping fixing structure.

3. The adjustable hinge with bearing according to claim 1, characterized in that, The second hinge (3) has a bearing (5) fixedly installed at both ends of the rotating hole. The two bearings (5) respectively block the two ends of the oil reservoir (4). The second hinge (3) is rotated and sleeved on the rotating shaft (1) through the two bearings (5).

4. The adjustable hinge with bearing according to claim 1, characterized in that, The top opening of the rotating hole of the first hinge (2) and the bottom opening of the rotating hole of the second hinge (3) are both fixedly snapped together with the bottom cover (7).

5. The adjustable hinge with bearing according to claim 1, characterized in that, The second mounting hole (9) of the second hinge (3) is a strip hole. The second hinge (3) and the corresponding steel pressure pad slide together. The steel pressure pad is the second steel pressure pad (11). The lower part of the second steel pressure pad (11) extends out of the second hinge (3) and is fixedly connected to the upper and lower adjustment seat (13) by bolts.

6. The adjustable hinge with bearing according to claim 1, characterized in that, The rotating shaft (1) is integrally formed with a limiting seat (6) in the middle. The upper diameter of the limiting seat (6) is larger than the diameter of the rotating hole of the first hinge (2). The lower part of the limiting seat (6) is rotatably fitted into the rotating hole of the second hinge (3).

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