A hinge structure with two-way rebound function

Abstract

The present invention discloses a hinge structure with a two-way rebound function, comprising a fixed page and a movable page, wherein the fixed page comprises a fixed seat, and the upper and lower ends of the fixed seat are respectively provided with limit sleeves; the movable page comprises a connecting seat, and a sleeve is provided on the connecting seat, and the sleeve is located between the two limit sleeves during assembly; two groups of elastic reset components are provided in the sleeve, and the elastic reset components comprise a stator shaft and a rotor shaft, and an elastic reset member is provided between the stator shaft and the rotor shaft, and one end of the elastic reset member is connected to the stator shaft, and the other end is connected to the rotor shaft, and a limit pin is provided on the rotor shaft; two mutually parallel limit grooves are provided at the middle position of the sleeve, and the stator shaft is clamped in the limit sleeve; the rotor shaft is located in the sleeve, and the limit pin passes through the limit groove and moves in the limit groove driven by the rotor shaft, and the free end of the limit pin extends out of the sleeve. It integrates two-way, rebound and no damping in one, and has smooth action, stable structure and adjustable rebound force.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a hinge structure with a bidirectional rebound function. Background Art

[0002] A hinge is a mechanical device used to connect two solids and allow them to rotate relative to each other. A hinge can be made of movable components or foldable materials. Hinges are mainly divided into stainless steel hinges and iron hinges according to their materials. In order to give people a better experience, hydraulic hinges (also known as damping hinges) have emerged. Their characteristic is that they provide a buffering function when the cabinet door is closed, which minimizes the noise caused by the collision between the cabinet door and the cabinet body when it is closed.

[0003] The top and bottom hinges can realize the functions of bidirectional rotation and resetting. The top and bottom hinges use gravity to reset the rotating body after rotation. However, the top and bottom hinges need to be set at the upper and lower ends of the rotating body, and they are difficult to hide, resulting in limited application scenarios. There is room for improvement in the existing technology. Summary of the invention

[0004] In order to solve the above technical problems, the present invention proposes a hinge structure with a two-way rebound function, which integrates two-way, rebound and no damping in one, has smooth movement, stable structure and adjustable rebound force.

[0005] To achieve the above object, the technical solution of the present invention is as follows: a hinge structure with a two-way rebound function, comprising a fixed leaf and a movable leaf, wherein the fixed leaf comprises a fixed seat, and the upper and lower ends of the fixed seat are respectively provided with limit sleeves; the movable leaf comprises a connecting seat, and the connecting seat is provided with a sleeve, and the sleeve is located between the two limit sleeves during assembly;

[0006] Two sets of elastic reset components are arranged in the sleeve, and the elastic reset components include a stator shaft and a rotor shaft. An elastic reset member is arranged between the stator shaft and the rotor shaft. One end of the elastic reset member is connected to the stator shaft, and the other end is connected to the rotor shaft. A limit pin is arranged on the rotor shaft.

[0007] Two mutually parallel limiting grooves are arranged in the middle position of the sleeve, and the stator shaft is clamped in the limiting sleeve; the rotor shaft is located in the sleeve, and the limiting pin passes through the limiting groove and moves in the limiting groove driven by the rotor shaft, and the free end of the limiting pin extends out of the sleeve.

[0008] By adopting the above technical solution, the fixed page is fixed by the fixed seat, and the movable page is connected to the rotating body. When the movable page rotates, the sleeve rotates with the movable page. Because the limit pin is located at the starting end of the limit groove in the initial state, when the sleeve rotates, one of the limit pins rotates under the push of one of the limit grooves; the other limit groove moves within its stroke until its end end hits the limit pin and stops; conversely, the action is the same, that is, this patent can realize forward and reverse rotation, and its rotation angle is within positive and negative 90°.

[0009] In addition, the torque of this patent is adjusted by the stator shaft. The greater the rotation angle of the stator shaft, the greater its torque. That is, this application can also be adjusted according to actual usage.

[0010] The present invention is further configured as follows: the stator shaft comprises a gear portion and a connecting rod portion, the connecting rod portion and the gear portion are integrally formed, a first clamping groove is provided along the axis at the free end of the connecting rod portion, and a mounting hole is provided at the end of the gear portion; the gear portion is meshed with the inside of the limiting sleeve;

[0011] The rotor shaft comprises a shaft body and a shaft connecting rod, wherein the shaft connecting rod is integrally formed with the shaft body, a second clamping groove is provided at the free end of the shaft connecting rod along the axis, a non-through threaded hole is provided on the shaft body, and the limit pin is threadedly connected with the threaded hole;

[0012] The first clamping slot and the second clamping slot are respectively clamped at two ends of the elastic return member.

[0013] By adopting the above technical solution, the connecting rod of the stator shaft of the patent is clamped at the end of the elastic reset member. When adjusting the force, first pull the stator shaft out of the limit sleeve, and adjust the torque of the elastic reset member by rotating the tool. When the torque is adjusted, the stator shaft is clamped into the limit sleeve and fixed. In this patent, the two torsion spring reset members can be adjusted through the stator shafts at both ends.

[0014] The rotor shaft can only rotate within a certain angle. In this patent, the rotation angle of the rotor shaft is within 90°.

[0015] The present invention is further configured as follows: a first bearing is arranged in the limiting sleeve, the first bearing is sleeved on the connecting rod portion of the stator shaft, a second bearing is arranged in the sleeve, the second bearing is sleeved on the connecting rod portion of the stator shaft, and the first bearing and the second bearing are oil-free bearings.

[0016] The present invention is further configured as follows: the two limit grooves respectively include a starting end and an end end, and the two limit pins are respectively located at the starting ends of the two limit grooves in an initial state; the end ends of the two limit grooves are far away from each other, that is, the strokes of the two limit pins in the two limit grooves are opposite.

[0017] The present invention is further configured such that the forward and reverse rotation angles of the movable page about the axis of the limiting sleeve do not exceed 90° respectively.

[0018] The present invention is further configured as follows: the elastic return member is a torsion spring arranged between the stator shaft and the rotor shaft, and two ends of the torsion spring are respectively clamped in the first clamping groove and the second clamping groove.

[0019] The present invention is further configured as follows: the elastic reset member is an elastic rubber strip with a columnar structure, and the stator shaft and the rotor shaft are respectively fixed at two ends of the elastic rubber strip.

[0020] The present invention is further configured such that reinforcing ribs extend around the circumference of the elastic rubber strip.

[0021] The present invention is further configured as follows: a avoiding groove for preventing interference of the limiting pin is provided on the fixing seat.

[0022] The present invention is further configured as follows: the fixing seat and the limiting sleeve are integrally formed, and the connecting seat and the sleeve are integrally formed.

[0023] In summary, the present invention has the following effects:

[0024] (1) The limit grooves extending in two opposite directions can realize the forward or reverse rotation of the movable leaf and rebound without damping.

[0025] (2) One end of the elastic reset part is fixed by the stator shaft, and the other end is pressurized by the sleeve. When the movable leaf is released, it rebounds. The movement is smooth, the structure is stable, and the rebound force is adjustable.

[0026] (3) The first bearing and the second bearing are oil-free bearings, which greatly improves the comfort and reliability of the movable leaf during use. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0028] Figure 1 is a schematic diagram of the overall structure of the hinge structure in Example 1;

[0029] Figure 2 This is a schematic diagram of the overall structure of a fixed page in Embodiment 1;

[0030] Figure 3 This is a schematic diagram of the overall structure of the activity page in Example 1;

[0031] Figure 4 It is a schematic diagram of the overall structure of the elastic reset assembly in Example 1;

[0032] Figure 5 It is a structural schematic diagram of the stator shaft in the first embodiment;

[0033] Figure 6 Schematic diagram of the connection structure between the stator shaft and the torsion spring;

[0034] Figure 7 is a schematic diagram of the structure of the rotor shaft;

[0035] Figure 8 It is a structural schematic diagram of the sleeve limiting groove;

[0036] Fig. 9 It is a schematic diagram of the end surface structure of the hinge structure in the first embodiment;

[0037] Fig.10 It is a schematic diagram of the overall structure of the elastic reset assembly in the second embodiment.

[0038] In the figure:

[0039] 1. Fixed page, 11. Fixed seat, 12. Limit sleeve;

[0040] 2. movable page, 21. connecting seat, 22. sleeve, 221. limiting groove; 221a. starting end, 221b. end end,

[0041] 3. elastic reset assembly, 31. stator shaft, 31a. gear portion, 31b. connecting rod portion, 31c. free end, 31d. first slot, 31e. mounting hole,

[0042] 32. rotor shaft, 32a. shaft body, 32b. shaft connecting rod, 32c. second slot, 32d. threaded hole, 321. stop pin;

[0043] 33. elastic reset member, 331. torsion spring, 332. elastic rubber strip, 3321. reinforcing rib;

[0044] 4. First bearing; 5. Second bearing; 6. Avoidance groove. DETAILED DESCRIPTION

[0045] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0046] Embodiment 1:

[0047] like Figure 1-Figure 9 As shown, the present invention discloses a hinge structure with a two-way rebound function, comprising a fixed page 1 and a movable page 2, wherein the fixed page 1 comprises a fixed seat 11, and the upper and lower ends of the fixed seat 11 are respectively provided with limit sleeves 12; the movable page 2 comprises a connecting seat 21, and the connecting seat 21 is provided with a sleeve 22, and the sleeve 22 is located between the two limit sleeves 12 during assembly;

[0048] Two sets of elastic reset components 3 are arranged in the sleeve 22, and the elastic reset components 3 include a stator shaft 31 and a rotor shaft 32. An elastic reset member 33 is arranged between the stator shaft 31 and the rotor shaft 32. One end of the elastic reset member 33 is connected to the stator shaft 31, and the other end is connected to the rotor shaft 32. A limit pin 321 is arranged on the rotor shaft 32.

[0049] Two mutually parallel limiting grooves 221 are arranged in the middle position of the sleeve 22, and the stator shaft 31 is clamped in the limiting sleeve 12; the rotor shaft 32 is located in the sleeve 22, and the limiting pin 321 passes through the limiting groove 221 and moves in the limiting groove 221 driven by the rotor shaft 32, and the free end of the limiting pin 321 extends out of the sleeve 22.

[0050] By adopting the above technical solution, the fixed page 1 is fixed by the fixing seat 11, and the movable page 2 is connected to the rotating body. When the movable page 2 rotates, the sleeve 22 rotates with the movable page 2 because the limiting pin 321 is located at the starting end 221a of the limiting groove 221 in the initial state.

[0051] like Figure 3 As shown, when the sleeve 22 rotates, the limit pin 321 at position A rotates under the push of the limit slot 221; at this time, the other limit slot 221 at position B rotates within its stroke until its terminal end 221b hits the limit pin 321 and stops; conversely, when the limit pin 321 at position B rotates under the push of the limit slot 221; at this time, the other limit slot 221 at position A rotates within its stroke until its terminal end 221b hits the limit pin 321 and stops. That is, this patent can realize forward and reverse rotation, and its rotation angle is within plus or minus 90°.

[0052] In addition, the torque of this patent is adjusted by the stator shaft. The greater the rotation angle of the stator shaft, the greater its torque. That is, this application can also adjust the torque according to actual usage.

[0053] The stator shaft 31 includes a gear portion 31a and a connecting rod portion 31b. The connecting rod portion 31b is integrally formed with the gear portion 31a. A first slot 31d is provided at a free end 31c of the connecting rod portion 31b along the axis. A mounting hole 31e is provided at the end of the gear portion 31a. The gear portion 31a is meshed with the inside of the limiting sleeve 12.

[0054] The stator shaft 31 of the present patent has a long connecting rod portion 31b and a long first slot 31d. In the working state, the opening of the first slot 31d is stuck in and penetrates into the elastic reset member 33. When it is necessary to disassemble or adjust the torque of the elastic reset member 33, it is only necessary to insert a tool into the mounting hole 31e and pull out the stator shaft 31. At this time, the first slot 31d is pulled out but does not separate from the elastic reset member 33. The elastic reset member 33 is rotated by the tool, and a suitable torque is applied. Then, the stator shaft is pushed into the limit sleeve 12 and engaged and fixed with the limit sleeve 12.

[0055] The rotor shaft 32 includes a shaft body 32a and a shaft connecting rod 32b. The shaft connecting rod 32b is integrally formed with the shaft body 32a. A second clamping groove 32c is provided at the free end of the shaft connecting rod 32b along the axis. A non-through threaded hole 32d is provided on the shaft body 32a. The stop pin 321 is threadedly connected to the threaded hole 32d.

[0056] The first clamping groove 31d and the second clamping groove 32c are respectively clamped at two ends of the elastic reset member 33. In this patent, the stator shaft is stationary, and only the rotor shaft can rotate within a certain angle.

[0057] A first bearing 4 is arranged in the limiting sleeve 12, and the first bearing 4 is sleeved on the connecting rod portion 31b of the stator shaft 31. A second bearing 5 is arranged in the sleeve 22, and the second bearing 5 is sleeved on the connecting rod portion 31b of the stator shaft 31. The first bearing 4 and the second bearing 5 are oil-free bearings, which can play a lubricating role.

[0058] The two limiting grooves 221 respectively include a starting end 221a and an end end 221b. In the initial state, the two limiting pins 321 are respectively located at the starting ends 221a of the two limiting grooves 221; the end ends 221b of the two limiting grooves 221 are far away from each other, that is, the travels of the two limiting pins 321 in the two limiting grooves 221 are opposite.

[0059] The positive and negative rotation angles of the movable page 2 about the axis of the limiting sleeve 12 do not exceed 90° respectively.

[0060] The elastic return member 33 is a torsion spring 331 disposed between the stator shaft 31 and the rotor shaft 32 , and two ends of the torsion spring 331 are respectively clamped in the first clamping groove 31 d and the second clamping groove 32 c .

[0061] The fixing seat 11 is provided with a avoiding groove 6 for preventing interference of the limiting pin 321 .

[0062] The fixing seat 11 and the limiting sleeve 12 are integrally formed, and the connecting seat 21 and the sleeve 22 are integrally formed.

[0063] Embodiment 2:

[0064] like Fig.10 As shown, the difference between Example 2 and Example 1 is that the elastic return member 33 is an elastic rubber strip 332 of a columnar structure, and the stator shaft 31 and the rotor shaft 32 are respectively fixed at two ends of the elastic rubber strip 332; in order to improve the durability of the elastic rubber strip 332, reinforcing ribs 3321 extend from the circumferential side of the elastic rubber strip 332, and the structure of the reinforcing ribs 3321 can be a linear structure or a spiral structure.

[0065] It should be pointed out that a person skilled in the art can make several modifications and improvements without departing from the inventive concept of the present invention, and these modifications and improvements all fall within the protection scope of the present invention.

Claims

1. A hinge structure with a two-way rebound function, comprising a fixed leaf (1) and a movable leaf (2), characterized in that: The fixed page (1) comprises a fixed seat (11), and the upper and lower ends of the fixed seat (11) are respectively provided with limit sleeves (12); the movable page (2) comprises a connecting seat (21), and the connecting seat (21) is provided with a sleeve (22), and the sleeve (22) is located between the two limit sleeves (12) during assembly; Two groups of elastic reset components (3) are arranged in the sleeve (22), the elastic reset components (3) comprising a stator shaft (31) and a rotor shaft (32), an elastic reset member (33) is arranged between the stator shaft (31) and the rotor shaft (32), one end of the elastic reset member (33) is connected to the stator shaft (31), and the other end is connected to the rotor shaft (32), and a limit pin (321) is arranged on the rotor shaft (32); Two mutually parallel limiting grooves (221) are arranged at the middle position of the sleeve (22), and the stator shaft (31) is clamped in the limiting sleeve (12); the rotor shaft (32) is located in the sleeve (22), and the limiting pin (321) passes through the limiting groove (221) and moves in the limiting groove (221) driven by the rotor shaft (32), and the free end of the limiting pin (321) extends out of the sleeve (22); The two limiting grooves (221) respectively comprise a starting end (221a) and an end end (221b); the two limiting pins (321) are respectively located at the starting ends (221a) of the two limiting grooves (221) in an initial state; the end ends (221b) of the two limiting grooves (221) are far away from each other, that is, the travels of the two limiting pins (321) in the two limiting grooves (221) are opposite.

2. The hinge structure with bidirectional rebound function according to claim 1, characterized in that: The stator shaft (31) comprises a gear portion (31a) and a connecting rod portion (31b); the connecting rod portion (31b) and the gear portion (31a) are integrally formed; a first clamping groove (31d) is provided at a free end (31c) of the connecting rod portion (31b) along the axis; and a mounting hole (31e) is provided at the end of the gear portion (31a); the gear portion (31a) is meshed with the interior of the limiting sleeve (12); The rotor shaft (32) comprises a shaft body (32a) and a shaft connecting rod (32b), the shaft connecting rod (32b) and the shaft body (32a) being integrally formed, a second clamping groove (32c) being provided at the free end of the shaft connecting rod (32b) along the axis, a non-through threaded hole (32d) being provided on the shaft body (32a), and the limit pin (321) being threadedly connected to the threaded hole (32d); The first clamping groove (31d) and the second clamping groove (32c) are respectively clamped at two ends of the elastic return member (33).

3. The hinge structure with bidirectional rebound function according to claim 2, characterized in that: A first bearing (4) is arranged in the limiting sleeve (12), and the first bearing (4) is sleeved on the connecting rod portion (31b) of the stator shaft (31); a second bearing (5) is arranged in the sleeve (22), and the second bearing (5) is sleeved on the connecting rod portion (31b) of the stator shaft (31); and the first bearing (4) and the second bearing (5) are oil-free bearings.

4. The hinge structure with bidirectional rebound function according to claim 1, characterized in that: The positive and negative rotation angles of the movable page (2) about the axis of the limiting sleeve (12) do not exceed 90° respectively.

5. The hinge structure with bidirectional rebound function according to claim 1, characterized in that: The elastic return member (33) is a torsion spring (331) arranged between the stator shaft (31) and the rotor shaft (32), and two ends of the torsion spring (331) are respectively clamped in a first clamping groove (31d) and a second clamping groove (32c).

6. The hinge structure with bidirectional rebound function according to claim 1, characterized in that: The elastic return member (33) is an elastic rubber strip (332) of a columnar structure, and the stator shaft (31) and the rotor shaft (32) are respectively fixed at two ends of the elastic rubber strip (332).

7. The hinge structure with bidirectional rebound function according to claim 6, characterized in that: A reinforcing rib (3321) extends from the circumference of the elastic rubber strip (332).

8. The hinge structure with bidirectional rebound function according to claim 1, characterized in that: The fixing seat (11) is provided with a avoiding groove (6) for preventing interference of the limiting pin (321).

9. The hinge structure with bidirectional rebound function according to claim 8, characterized in that: The fixing seat (11) and the limiting sleeve (12) are integrally formed, and the connecting seat (21) and the sleeve (22) are integrally formed.

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