Hinge with adjustable bidirectional damping torsion

Abstract

The utility model discloses a bidirectional damping torsion adjustable hinge which comprises a rotating shaft, a hollow fixed shaft, a first flange, a first pressure washer, a one-way transmission mechanism, a second pressure washer and a second flange, the first flange, the first pressure washer, the one-way transmission mechanism, the second pressure washer and the second flange are sequentially arranged, the one-way transmission mechanism comprises a first transmission assembly and a second transmission assembly, and the fixed shaft is sleeved on the rotating shaft. The first flange and the first pressure washer are connected in an expansion riveting mode, the rotating shaft is slidably sleeved with the first flange, the first pressure washer and the first transmission assembly, the first flange and the first transmission assembly press the first pressure washer, and the rotating shaft is further in threaded connection with a first adjusting nut. The first adjusting nut is located on the side, away from the first pressure gasket, of the first flange. The overall design structure is simple, the size is small, the two-way rotation torsion of the hinge is inconsistent, the second torsion is always smaller than or equal to the first torsion, and meanwhile the corresponding torsion can be adjusted through the adjusting nut.

Description

Technical Field

[0001] The utility model belongs to the field of hinges, and in particular relates to a hinge with adjustable two-way damping torque. Background Art

[0002] Hinges are very common in daily product use as a rotating connection. However, with the increasing functions of products, the traditional hinges that only provide damping can no longer meet the functional requirements of products. Common hinges on the market include 360-degree damping hinges, one-way torque adjustable hinges, and one-way buffer hinges.

[0003] There are some disadvantages in the hinges in the prior art: small-sized hinges generally have non-adjustable torque; when different torques in both directions are required, multiple hinges are required to complete the task, which greatly affects the complexity and reliability of the product structure. Therefore, hinges with adjustable torque are generally large in size and have the same forward and reverse torque; at the same time, hinges with inconsistent forward and reverse torque cannot adjust the torque or can only adjust the torque in one direction. Utility Model Content

[0004] The utility model aims to solve the problems raised in the background technology and provides a hinge with adjustable two-way damping torque.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a hinge with adjustable two-way damping torque, comprising a rotating shaft and a hollow fixed shaft, and a first flange, a first pressure washer, a one-way transmission mechanism, a second pressure washer and a second flange which are arranged in sequence, wherein the one-way transmission mechanism comprises a first transmission assembly and a second transmission assembly, wherein:

[0007] The fixed shaft sleeve is arranged on the rotating shaft, and the two are connected by riveting. The first flange, the first pressure washer and the first transmission assembly are all slidably sleeved on the rotating shaft. The first flange and the first transmission assembly respectively press the first pressure washer. The rotating shaft is also threadedly connected with a first adjusting nut, and the first adjusting nut is located on a side of the first flange away from the first pressure washer.

[0008] The second transmission assembly, the second pressure washer and the second flange are all mounted on the fixed shaft, the second transmission assembly and the second pressure washer are both rotatably connected to the fixed shaft, the second flange is slidably connected to the fixed shaft, the second transmission assembly and the second flange respectively press the second pressure washer, a second adjusting nut is also threadedly connected to the fixed shaft, and the second adjusting nut is located on the side of the second flange away from the second pressure washer, and the first transmission assembly and the second transmission assembly are fastened to each other.

[0009] Preferably, the first transmission component is a first transmission gear, the second transmission component is a second transmission gear, and the first transmission gear and the second transmission gear are tightly engaged with each other, and the first transmission gear drives the second transmission gear to rotate in the forward direction.

[0010] Preferably, a wear-resistant gasket is also slidably sleeved on the fixed shaft, and the wear-resistant gasket is located between the second pressure washer and the second flange.

[0011] Preferably, the rotating shaft includes a first rotating rod and a second rotating rod which are cylindrical and fixedly connected, and the side wall of the first rotating rod is provided with two opposite first cross-sections along the length direction, the cross-section of the first rotating rod is larger than the cross-section of the second rotating rod, the fixed shaft is sleeved on the second rotating rod, the first flange, the first pressure washer and the first transmission assembly are all slidably sleeved on the first rotating rod through the corresponding first through holes, and the first adjusting nut is threadedly connected to the first rotating rod.

[0012] Preferably, the fixed shaft includes a fixedly connected disc and a cylindrical rod, the side wall of the cylindrical rod is provided with two opposite second cross-sections along the length direction, the fixed shaft is sleeved on the second rotating rod, and one side of the disc on the fixed shaft is abutted against the end of the first rotating rod for limiting position, the second transmission assembly, the second pressure washer and the second flange are all sleeved on the cylindrical rod, and the second transmission assembly and the second pressure washer are both rotatably connected to the cylindrical rod, and one side of the second transmission assembly is in abutment against the disc, the second flange is slidably connected to the cylindrical rod through the corresponding second through hole, and the second adjusting nut is threadedly connected to the cylindrical rod.

[0013] Preferably, each flange is provided with a handle rod for easy rotation.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The hinge with bidirectional damping torque adjustable is designed by matching the rotating shaft, the fixed shaft, the first flange, the first pressure washer, the one-way transmission mechanism, the second pressure washer and the second flange. The overall design structure is simple and the volume is small. The bidirectional rotation torque of the hinge is inconsistent, and the second torque is always less than or equal to the first torque. At the same time, the corresponding torque size can be adjusted by adjusting the nut, which solves the problem in the prior art that the hinge with inconsistent forward and reverse torque cannot adjust the torque or can only adjust the one-way torque. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an exploded diagram of the assembly of the hinge with adjustable torsion force in both directions of the utility model;

[0017] Figure 2 It is a schematic diagram of the structure of the hinge with adjustable torsion force in two directions from the first perspective of the utility model;

[0018] Figure 3 It is a cross-sectional schematic diagram of the hinge with two-way damping and adjustable torsion force of the utility model;

[0019] Figure 4 It is a schematic diagram of the structure of the hinge with adjustable torsion force in two directions from a second viewing angle of the utility model;

[0020] Figure 5 It is a structural schematic diagram of the rotating shaft of the utility model;

[0021] Figure 6 This is a schematic diagram of the structure of the fixed shaft of the utility model;

[0022] Figure 7 It is a schematic cross-sectional view of the first rotating rod or cylindrical rod of the utility model.

[0023] Explanation of the accompanying drawings: 1. rotating shaft; 11. first rotating rod; 12. second rotating rod; 2. fixed shaft; 21. disk; 22. cylindrical rod; 3. first flange; 4. first pressure washer; 5. one-way transmission mechanism; 51. first transmission assembly; 52. second transmission assembly; 6. second pressure washer; 7. second flange; 8. second adjusting screw; 9. wear-resistant gasket; 10. first adjusting nut. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0025] It should be noted that when a component is referred to as being "connected" to another component, it may be directly connected to the other component or there may be an intermediate component. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which this application belongs. The terms used herein in the specification of this application are only for the purpose of describing specific embodiments and are not intended to limit this application.

[0026] like Figure 1-7 As shown, a hinge with two-way damping torque adjustable comprises a rotating shaft 1 and a hollow fixed shaft 2, and a first flange 3, a first pressure washer 4, a one-way transmission mechanism 5, a second pressure washer 6 and a second flange 7 arranged in sequence, and the one-way transmission mechanism 5 comprises a first transmission assembly 51 and a second transmission assembly 52, wherein:

[0027] The fixed shaft 2 is sleeved on the rotating shaft 1, and the two are connected by riveting. The first flange 3, the first pressure washer 4 and the first transmission assembly 51 are all slidably sleeved on the rotating shaft 1. The first flange 3 and the first transmission assembly 51 respectively press the first pressure washer 4. The rotating shaft 1 is also threadedly connected with a first adjusting nut 10, and the first adjusting nut 10 is located on the side of the first flange 3 away from the first pressure washer 4.

[0028] The second transmission assembly 52, the second pressure washer 6 and the second flange 7 are all sleeved on the fixed shaft 2, the second transmission assembly 52 and the second pressure washer 6 are both rotatably connected to the fixed shaft 2, the second flange 7 is slidably connected to the fixed shaft 2, the second transmission assembly 52 and the second flange 7 respectively press the second pressure washer 6, and a second adjusting nut 8 is also threadedly connected to the fixed shaft 2, and the second adjusting nut 8 is located on the side of the second flange 7 away from the second pressure washer 6, and the first transmission assembly 51 and the second transmission assembly 52 are fastened to each other.

[0029] Each flange is equipped with a handle bar for easy turning.

[0030] It should be noted that Figure 1 For example, the fixed shaft 2 is sleeved on the rotating shaft 1, and the two are connected by riveting (this connection method belongs to the prior art and is not described in detail), which can ensure that the fixed shaft 2 and the rotating shaft 1 can rotate freely without axial stringing; the first flange 3, the first pressure washer 4, the one-way transmission mechanism 5, the second pressure washer 6 and the second flange 7 are arranged in sequence from left to right, and the first flange 3, the first pressure washer 4 and the first transmission assembly 51 all rotate synchronously with the rotation of the rotating shaft 1, and the first flange 3, the first pressure washer 4 and the first transmission assembly 51 can move axially along the rotating shaft 1;

[0031] The second pressure washer 6 and the second transmission assembly 52 rotate relative to the fixed shaft 2 respectively, and the second flange 7 rotates synchronously with the rotation of the fixed shaft 2, and the second transmission assembly 52, the second pressure washer 6 and the second flange 7 can all move axially along the fixed shaft 2, and the first flange 3 is limited by the first adjusting nut 10, and the second flange 7 is limited by the second adjusting nut 8, so that the first adjusting nut 10, the first flange 3, the first pressure washer 4, the first transmission assembly 51, the second transmission assembly 52, the second pressure washer 6, the second flange 7 and the second adjusting nut 8 are successively close to each other, and the first pressure washer 4 and the second pressure washer 6 are both elastic.

[0032] When the first flange 3 rotates forward, the rotating shaft 1 rotates synchronously (as shown in FIG. Figure 1The arrow direction at the first flange 3 shown is the direction of reverse rotation of the first flange 3), thereby driving the first transmission component 51 to rotate synchronously, and the first transmission component 51 drives the second transmission component 52 to rotate. Because the second transmission component 52 and the second flange 7 squeeze the second pressure washer 6 against each other, a large squeezing force is generated. At this time, the second transmission component 52 and the second flange 7 rotate relative to each other to generate a first torque (i.e., a first torque is generated between the first flange 3 and the second flange 7), and the first torque can be adjusted by adjusting the tightness of the second adjusting nut 8; when the first flange 3 is rotated in reverse, the rotating shaft 1 is driven to rotate synchronously, thereby driving the first transmission component 51 to rotate synchronously. At this time, the first transmission component 51 cannot drive the second transmission component 52 to rotate, generating a rotational friction force and then forming a second torque (i.e., a second torque is generated between the first flange 3 and the second flange 7), and the second torque can be adjusted by adjusting the tightness of the first adjusting nut 10, and the second torque is always less than or equal to the first torque.

[0033] The hinge design of this patent with different forward and reverse bidirectional torques and adjustable bidirectional torques can be applied to: such as notebooks (where the damping force for opening and closing is required to be different), and folding chairs (where the damping force is required to be small when folding so that it is easy to fold, and the damping force is required to be large when opening to prevent automatic opening during transportation).

[0034] In one embodiment, the first transmission assembly 51 is a first transmission gear, the second transmission assembly 52 is a second transmission gear, and the first transmission gear and the second transmission gear are tightly engaged with each other, and the first transmission gear drives the second transmission gear to rotate in the forward direction.

[0035] It should be noted that the first transmission gear can drive the second transmission gear to rotate in the forward direction, but cannot rotate in the reverse direction, and the direction of reverse rotation is as follows: Figure 1 The arrow direction of the handle of the first flange 3 is shown.

[0036] In one embodiment, a wear-resistant gasket 9 is also slidably sleeved on the fixed shaft 2 , and the wear-resistant gasket 9 is located between the second pressure washer 6 and the second flange 7 .

[0037] It should be noted that the wear-resistant gasket 9 can be slidably installed on the fixed shaft 2. The arrangement of the wear-resistant gasket 9 prevents wear during rotation and increases the service life of the mechanism.

[0038] In one embodiment, the rotating shaft 1 includes a first rotating rod 11 and a second rotating rod 12 which are cylindrical and fixedly connected, and the side wall of the first rotating rod 11 is provided with two opposite first cross-sections along the length direction, the cross-section of the first rotating rod 11 is larger than the cross-section of the second rotating rod 12, the fixed shaft 2 is sleeved on the second rotating rod 12, the first flange 3, the first pressure washer 4 and the first transmission assembly 51 are all slidably sleeved on the first rotating rod 11 through corresponding first through holes, and the first adjusting nut 10 is threadedly connected to the first rotating rod 11.

[0039] like Figure 5 As shown, it should be noted that the first rotating rod 11 and the second rotating rod 12 can be integrally formed or designed as a split body. The cross section of the first rotating rod 11 after the two first sections are provided is a circle with two opposite arcs cut off (the pattern is as follows Figure 7 As shown), the fixed shaft 2 is sleeved on the second rotating rod 12, and the two are connected by riveting. The shape of the first through hole corresponds to the cross-sectional shape of the first rotating rod 11 after being provided with two first sections. The first flange 3, the first pressure washer 4 and the first transmission assembly 51 are all slidably sleeved on the first rotating rod 11 through the corresponding first through holes, and all rotate synchronously with the first rotating rod 11 and can move along the length direction of the first rotating rod 11. The first adjusting nut 10 is threadedly connected to the first rotating rod 11.

[0040] In one embodiment, the fixed shaft 2 includes a disc 21 and a cylindrical rod 22 that are fixedly connected, and the side wall of the cylindrical rod 22 is provided with two opposite second cross-sections along the length direction. The fixed shaft 2 is sleeved on the second rotating rod 12, and one side of the disc 21 on the fixed shaft 2 is abutted against the end of the first rotating rod 11 for limiting position. The second transmission assembly 52, the second pressure washer 6 and the second flange 7 are all sleeved on the cylindrical rod 22, and the second transmission assembly 52 and the second pressure washer 6 are both rotatably connected to the cylindrical rod 22, and one side of the second transmission assembly 52 is in abutment against the disc 21. The second flange 7 is slidably connected to the cylindrical rod 22 through the corresponding second through hole, and the second adjusting nut 8 is threadedly connected to the cylindrical rod 22.

[0041] like Figure 6 As shown, it should be noted that the disk 21 and the cylindrical rod 22 can be integrally formed or can be designed as a split body, with two second sections (such as Figure 6 The cross section of the cylindrical rod 22 after A) is similar to the cross section of the first rotating rod 11, which is also a circle with two opposite arcs cut off (the style is as follows Figure 7As shown), and the length of the second section (the length along the length direction of the cylindrical rod 22) is less than the length of the cylindrical rod 22, the second transmission assembly 52 and the second pressure washer 6 are rotatably mounted on the non-second section area of ​​the cylindrical rod 22, the shape of the second through hole corresponds to the shape of the cross section of the cylindrical rod 22 with the second section, the wear-resistant gasket 9 and the second flange 7 are slidably mounted on the second section area of ​​the cylindrical rod 22 through the second through hole, and the wear-resistant gasket 9 and the second flange 7 can move axially along the cylindrical rod 22, and the installed second transmission assembly 52 abuts against the disc 21.

[0042] The working principle of this two-way damping torque adjustable hinge:

[0043] When the first flange 3 rotates forward, the rotating shaft 1 rotates synchronously (as shown in FIG. Figure 1 The arrow direction at the first flange 3 shown is the direction of reverse rotation of the first flange 3), thereby driving the first transmission component 51 to rotate synchronously, and the first transmission component 51 drives the second transmission component 52 to rotate. Because the second transmission component 52 and the second flange 7 squeeze the second pressure washer 6 against each other, a large squeezing force is generated. At this time, the second transmission component 52 and the second flange 7 rotate relative to each other to generate a first torque (i.e., a first torque is generated between the first flange 3 and the second flange 7), and the first torque can be adjusted by adjusting the tightness of the second adjusting nut 8; when the first flange 3 is rotated in reverse, the rotating shaft 1 is driven to rotate synchronously, thereby driving the first transmission component 51 to rotate synchronously. At this time, the first transmission component 51 cannot drive the second transmission component 52 to rotate, generating a rotational friction force and then forming a second torque (i.e., a second torque is generated between the first flange 3 and the second flange 7), and the second torque can be adjusted by adjusting the tightness of the first adjusting nut 10, and the second torque is always less than or equal to the first torque.

[0044] The hinge with bidirectional damping torque adjustable is designed by matching the rotating shaft, the fixed shaft, the first flange, the first pressure washer, the one-way transmission mechanism, the second pressure washer and the second flange. The overall design structure is simple and the volume is small. The bidirectional rotation torque of the hinge is inconsistent, and the second torque is always less than or equal to the first torque. At the same time, the corresponding torque size can be adjusted by adjusting the nut, which solves the problem in the prior art that the hinge with inconsistent forward and reverse torque cannot adjust the torque or can only adjust the one-way torque.

[0045] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0046] The above-described embodiments only express the more specific and detailed embodiments described in this application, but they cannot be understood as limiting the scope of the patent application. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of this application, which all belong to the protection scope of this application. Therefore, the protection scope of the patent application shall be based on the attached claims.

Claims

1. A hinge with two-way damping torque adjustable, characterized in that: The bidirectional damping torque adjustable hinge comprises a rotating shaft (1) and a hollow fixed shaft (2), and a first flange (3), a first pressure washer (4), a one-way transmission mechanism (5), a second pressure washer (6) and a second flange (7) which are arranged in sequence, wherein the one-way transmission mechanism (5) comprises a first transmission assembly (51) and a second transmission assembly (52), wherein: The fixed shaft (2) is sleeved on the rotating shaft (1), and the two are connected by riveting. The first flange (3), the first pressure washer (4) and the first transmission assembly (51) are all slidably sleeved on the rotating shaft (1). The first flange (3) and the first transmission assembly (51) respectively press the first pressure washer (4). The rotating shaft (1) is also threadedly connected with a first adjusting nut (10), and the first adjusting nut (10) is located on a side of the first flange (3) away from the first pressure washer (4); The second transmission component (52), the second pressure washer (6) and the second flange (7) are all sleeved on the fixed shaft (2); the second transmission component (52) and the second pressure washer (6) are both rotatably connected to the fixed shaft (2); the second flange (7) is slidably connected to the fixed shaft (2); the second transmission component (52) and the second flange (7) respectively press the second pressure washer (6); a second adjusting nut (8) is also threadedly connected to the fixed shaft (2); and the second adjusting nut (8) is located on a side of the second flange (7) away from the second pressure washer (6); the first transmission component (51) and the second transmission component (52) are fastened to each other.

2. The hinge with two-way damping and adjustable torque as claimed in claim 1, characterized in that: The first transmission assembly (51) is a first transmission gear, the second transmission assembly (52) is a second transmission gear, and the first transmission gear and the second transmission gear are tightly engaged with each other, and the first transmission gear drives the second transmission gear to rotate in a positive direction.

3. The hinge with two-way damping and adjustable torque as claimed in claim 1, characterized in that: The fixed shaft (2) is also provided with a wear-resistant gasket (9) on a sliding sleeve, and the wear-resistant gasket (9) is located between the second pressure gasket (6) and the second flange (7).

4. The hinge with two-way damping and adjustable torque as claimed in claim 1, characterized in that: The rotating shaft (1) comprises a first rotating rod (11) and a second rotating rod (12) which are cylindrical and fixedly connected, and the side wall of the first rotating rod (11) is provided with two opposite first sections along the length direction, the cross section of the first rotating rod (11) is larger than the cross section of the second rotating rod (12), the fixed shaft (2) is sleeved on the second rotating rod (12), the first flange (3), the first pressure washer (4) and the first transmission assembly (51) are all slidably sleeved on the first rotating rod (11) through corresponding first through holes, and the first adjusting nut (10) is threadedly connected to the first rotating rod (11).

5. The hinge with two-way damping and adjustable torque as claimed in claim 4, characterized in that: The fixed shaft (2) comprises a disc (21) and a cylindrical rod (22) which are fixedly connected. The side wall of the cylindrical rod (22) is provided with two opposite second sections along the length direction. The fixed shaft (2) is sleeved on the second rotating rod (12), and one side of the disc (21) on the fixed shaft (2) is abutted against the end of the first rotating rod (11) for limiting position. The second transmission assembly (52), the second pressure washer (6) and the second flange (7) are all sleeved on the cylindrical rod (22), and the second transmission assembly (52) and the second pressure washer (6) are both rotatably connected to the cylindrical rod (22), and one side of the second transmission assembly (52) is in abutment with the disc (21). The second flange (7) is slidably connected to the cylindrical rod (22) through a corresponding second through hole, and the second adjusting nut (8) is threadedly connected to the cylindrical rod (22).

6. The hinge with two-way damping and adjustable torque as claimed in claim 1, characterized in that: Each flange is provided with a handle rod for easy rotation.

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