Mute adjustable buffer hinge

Abstract

A mute adjustable buffering hinge comprises a fixed hinge body, a movable hinge body, a buffering mechanism installed in the fixed hinge body and a connecting piece fixed to the movable hinge body, and the movable hinge body is matched with the buffering mechanism in a hinged mode through the connecting piece. The buffering mechanism comprises a damping rod, a driving block and a pressure spring, one end of the damping rod abuts against the connecting piece, the driving block acts on the connecting piece through the pressure spring, and the buffering mechanism further comprises an adjusting mechanism used for adjusting the compression degree of the pressure spring. In the adjusting mechanism, an adjusting block can be controlled to move downwards or upwards by rotating an adjusting rod, so that the pushing and pressing effect of the adjusting block on a pressure spring is changed, the elastic force of a driving block acting on a connecting piece can be changed after the compression degree of the pressure spring is changed, and therefore the hinge is suitable for door plates with different weights, the closing speed of the hinge is controlled; and the door closing time can be adjusted according to the weight or using habits of the door plate, and practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hinges, in particular to a silent and adjustable buffer hinge. Background Art

[0002] Buffer hinges are a special type of hinge. The main principle is to add a buffer device inside the hinge mechanism, through which the buffering effect between the two parts can be achieved. Buffer hinges are usually used in furniture, doors and windows, such as cabinet doors, wardrobe doors, windows, etc. It can make the closing process of the door smoother and softer, avoid noise and damage caused by violent closing, and improve the comfort and safety of home life.

[0003] The movable hinge is provided with a mounting groove for accommodating the mounting seat, and the end of the mounting seat is fixedly connected to the fixed hinge. The camshaft, the buffer block and the buffer mechanism are sequentially installed in the mounting seat from the head end to the end end. The camshaft is rotatably connected to the mounting seat, and the two ends of the camshaft are fixedly connected to the movable hinge. The cam of the camshaft presses one end of the buffer block, and the other end of the buffer block is connected to the buffer mechanism. When the camshaft rotates, the buffer block triggers the buffer mechanism to generate a buffer resistance. The buffer mechanism is triggered to buffer by the camshaft pressing the buffer block. This method of triggering buffering is flexible and convenient.

[0004] However, the buffer hinge not only needs a buffering function, but also needs to have the function of driving the movable door to close automatically. In the above structure, the buffer block is pressed against the camshaft by the elastic force of the spring to drive the movable hinge to close. In this process, if the weight of the door panel is too large, the elastic force provided by the spring is not enough to drive the movable hinge to close, which will cause the door panel to close very slowly or even stagnate, requiring manual assistance to close, which will bring inconvenience to the user; similarly, if the weight of the door panel is too light, the spring will drive the movable hinge to close quickly, and the closing time cannot be reasonably controlled. Utility Model Content

[0005] In order to overcome the deficiencies of the prior art, the utility model provides a silent and adjustable buffer hinge.

[0006] The technical solution adopted by the utility model to solve its technical problems is:

[0007] The cam is adapted to move the lever to abut against the engagement of the cam, and the cam is adapted to move the lever to abut against the engagement of the cam, wherein the cam is adapted to move the lever to abut against the engagement of the cam.

[0008] In the utility model, the connecting member is provided with a structural groove which cooperates with the damping rod and the driving block. When the door panel rotates, the inertial force acts on the damping rod through the structural groove, and the driving block drives the movable hinge to close through the structural groove.

[0009] In the utility model, the limiting hole is a long hole extending in the direction of the pressure spring, and the width of the limiting hole is larger than the width of the lower part of the adjusting rod and smaller than the width of the upper part of the adjusting rod.

[0010] In the utility model, the fixed hinge is provided with an installation cavity for installing a buffer mechanism, and the fixed hinge includes a hinge body and a cover plate. The installation cavity is arranged on the hinge body, and a movable port for a connecting member to extend into is provided on a side of the installation cavity close to the movable hinge. After the cover plate covers the installation cavity, it is connected with the outside through the movable port, and the cover plate is also provided with an adjustment hole for an adjustment rod to pass through.

[0011] Furthermore, the buffer mechanism also includes an articulated seat for an articulated connecting member, and the articulated seat is provided with two groups. The two groups of articulated seats are respectively fixed at the movable port by bolts, and the connecting member extending into the installation cavity rotates with the articulated seats on both sides.

[0012] In the utility model, the fixed hinge and the movable hinge are respectively clamped and fixed on the fixed door panel and the movable door panel by a pressure plate, and the pressure plate is respectively connected and fixed to the fixed hinge and the movable hinge by bolts. After the pressure plate is fixed, it is covered and hidden by the hinge back cover.

[0013] The utility model has the following advantages and beneficial effects:

[0014] In the adjustment mechanism, the adjustment block can be controlled to move down or up by rotating the adjustment rod, thereby changing the pushing effect of the adjustment block on the pressure spring. After changing the compression degree of the pressure spring, the elastic force of the drive block acting on the connecting part can be changed, so that it is suitable for door panels of different weights and controls the closing speed of the hinge. It can also adjust the closing time according to the weight of the door panel or usage habits to improve practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0016] Figure 1 is a schematic diagram of a buffer hinge in this embodiment;

[0017] Figure 2 This is a schematic diagram of the installation of the buffer hinge in this embodiment;

[0018] Figure 3 Schematic diagram of the adjustment mechanism in this embodiment;

[0019] Figure 4 This is a usage status diagram of the buffer hinge in this embodiment. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model, but the utility model is not limited to the following embodiments.

[0021] like Figures 1 to 4As shown, the present embodiment discloses a silent adjustable buffer hinge, comprising a fixed hinge 1, a movable hinge 2 and a buffer mechanism 3 installed in the fixed hinge 1, the fixed hinge 1 is provided with a mounting cavity 10 for installing the buffer mechanism 3, the movable hinge 2 is provided with a connecting piece 4 for connecting the fixed hinge 1, one end of the connecting piece 4 is fixedly connected to the movable hinge 2, and the other end of the connecting piece 4 extends into the mounting cavity 10 and is hingedly matched with the buffer mechanism 3; specifically, the buffer mechanism 3 comprises a damping rod 30 for buffering when closing the door, and a driving block 31 and a pressure spring 32 for driving the movable hinge 2 to close, one end of the damping rod 30 abuts against the connecting piece 4, the driving block 31 acts on the connecting piece 4 through the pressure spring 32, and the end of the connecting piece 4 extending into the mounting cavity 10 is provided with a structural groove 40 for the action of the damping rod 30 and the driving block 31, and the door panel rotates The inertial force during the movement acts on the damping rod 30 through the structural groove 40 to achieve buffering, and the driving block 31 drives the movable hinge 2 to close through the structural groove 40; the buffer mechanism 3 also includes an adjusting mechanism 33 for adjusting the compression degree of the pressure spring 32, the adjusting mechanism 33 includes a guiding inclined surface 330 arranged in the installation cavity 10, an adjusting block 331 matched on the guiding inclined surface 330 and an adjusting rod 332 pressed on the adjusting block 331, the guiding inclined surface 330 is arranged at the inner end of the installation cavity 10 and tilted outward, a limiting hole 333 is provided on the adjusting block 331, the bottom of the adjusting block 331 is slidably matched on the guiding inclined surface 330, the front end of the adjusting block 331 is against the pressure spring 32, the upper part of the adjusting rod 332 is pressed against the adjusting block 331, and the lower part of the adjusting rod 332 is threadedly connected to the guiding inclined surface 330 after passing through the limiting hole 333. In the adjustment mechanism 33, the adjustment block 331 can be controlled to move down or up along the guide slope 330 by rotating the adjustment rod 332, thereby changing the pushing effect of the adjustment block 331 on the pressure spring 32. After changing the compression degree of the pressure spring 32, the elastic force of the drive block 31 acting on the connecting member 4 can be changed, thereby controlling the closing speed of the hinge. The closing time can be adjusted according to the weight of the door panel or usage habits, thereby improving practicality.

[0022] In this embodiment, the limiting hole 333 is a long hole extending in the direction of the pressure spring 32. The width of the limiting hole 333 is greater than the width of the lower part of the adjusting rod 332 and less than the width of the upper part of the adjusting rod 332. The long limiting hole 333 enables the adjusting block 331 to only move along the direction of the limiting hole 333 when the adjusting rod 332 presses the adjusting block 331.

[0023] In this embodiment, in order to facilitate the installation of the buffer mechanism 3, the fixed hinge 1 includes a hinge body 11 and a cover plate 12. The installation cavity 10 is arranged on the hinge body 11. The installation cavity 10 is provided with an active port 13 for the connecting member 4 to extend into on the side close to the movable hinge 2. After the cover plate 12 covers the installation cavity 10, it is connected with the outside through the active port 13. The cover plate 12 is also provided with an adjustment hole 121 for the adjustment rod 332 to pass through. The adjustment rod 332 can be rotated through the adjustment hole 121, which is more convenient for adjustment.

[0024] Furthermore, the buffer mechanism 3 also includes an articulated seat 34 for the articulated connecting member 4. The articulated seat 34 is provided with two groups. The two groups of articulated seats 34 are respectively fixed at the movable port 13 by bolts. The connecting member 4 extending into the installation cavity 10 rotates with the articulated seats 34 on both sides.

[0025] In this embodiment, the fixed hinge 1 and the movable hinge 2 are clamped and fixed on the fixed door panel and the movable door panel respectively through a pressure plate 5. The pressure plate 5 is connected and fixed to the fixed hinge 1 and the movable hinge 2 respectively through bolts. After the pressure plate 5 is fixed, the pressure plate 5 is covered and hidden by the hinge back cover 6 to improve the aesthetics.

[0026] The above contents described in this specification are merely examples of the present invention. Technicians in the technical field to which the present invention belongs can make various modifications or additions to the specific embodiments described or replace them in a similar manner. As long as they do not deviate from the contents of the present invention specification or exceed the scope defined by the claims, they should all fall within the protection scope of the present invention.

Claims

1. A silent adjustable buffer hinge, comprising a fixed hinge (1), a movable hinge (2), a buffer mechanism (3) installed in the fixed hinge (1), and a connecting piece (4) installed on the movable hinge (2), wherein the movable hinge (2) is hingedly connected to the buffer mechanism (3) via the connecting piece (4), and characterized in that: The buffer mechanism (3) comprises a damping rod (30), a driving block (31) and a pressure spring (32); one end of the damping rod (30) abuts against the connecting member (4); the driving block (31) acts on the connecting member (4) via the pressure spring (32); the buffer mechanism (3) further comprises an adjusting mechanism (33) for adjusting the degree of compression of the pressure spring (32); the adjusting mechanism (33) comprises a guide inclined surface (330), an adjusting block (331) fitted on the guide inclined surface (330) and a pressure spring (32) pressed against the adjusting block. The adjusting rod (332) is arranged on the adjusting block (331), the guiding inclined surface (330) is inclined outward, a limiting hole (333) is provided on the adjusting block (331), the bottom of the adjusting block (331) is slidably fitted on the guiding inclined surface (330), the front end of the adjusting block (331) is pressed against the pressure spring (32), the upper part of the adjusting rod (332) is pressed against the adjusting block (331), and the lower part of the adjusting rod (332) passes through the limiting hole (333) and is threadedly connected to the guiding inclined surface (330).

2. The silent adjustable buffer hinge according to claim 1, characterized in that: The connecting member (4) is provided with a structural groove (40) that cooperates with the damping rod (30) and the driving block (31); when the door panel rotates, the inertial force acts on the damping rod (30) through the structural groove (40); and the driving block (31) drives the movable hinge (2) to close through the structural groove (40).

3. The silent adjustable buffer hinge according to claim 1, characterized in that: The limiting hole (333) is a long hole extending in the direction of the pressure spring (32); the width of the limiting hole (333) is greater than the width of the lower part of the adjusting rod (332) and smaller than the width of the upper part of the adjusting rod (332).

4. The silent adjustable buffer hinge according to claim 1, characterized in that: The fixed hinge (1) is provided with a mounting cavity (10) for mounting a buffer mechanism (3). The fixed hinge (1) comprises a hinge body (11) and a cover plate (12). The mounting cavity (10) is arranged on the hinge body (11). A movable port (13) for the connector (4) to extend into is provided on a side of the mounting cavity (10) close to the movable hinge (2). After the cover plate (12) covers the mounting cavity (10), the mounting cavity (10) is connected to the outside through the movable port (13). The cover plate (12) is also provided with an adjustment hole (121) for the adjustment rod (332) to pass through.

5. The silent adjustable buffer hinge according to claim 4, characterized in that: The buffer mechanism (3) further comprises an articulated seat (34) for the articulated connecting member (4), wherein the articulated seat (34) is provided in two groups, and the two groups of articulated seats (34) are respectively fixed to the movable port (13) by bolts, and the connecting member (4) extending into the installation cavity (10) is rotatably matched with the articulated seats (34) on both sides.

6. The silent adjustable buffer hinge according to claim 1, characterized in that: The fixed hinge (1) and the movable hinge (2) are respectively clamped and fixed on the fixed door panel and the movable door panel via a pressure plate (5); the pressure plate (5) is respectively connected and fixed to the fixed hinge (1) and the movable hinge (2) via bolts; after the pressure plate (5) is fixed, the pressure plate (5) is covered and hidden via a hinge rear cover (6).

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