Damping hinge

Abstract

The utility model discloses a damping hinge which comprises a shaft core, the shaft core comprises a pipe body and a lantern ring which are coaxially arranged in a rotating mode, the lantern ring is arranged on the radial outer surface of the pipe body in a sleeved mode, the pipe body is connected with a first hinge piece, and the lantern ring is connected with a second hinge piece; the transmission structure comprises a sliding pin, a guide channel and a chute, the sliding pin can slide along the guide channel and the chute, the guide channel is arranged on one of the pipe body and the lantern ring, and the chute is arranged on the other one of the pipe body and the lantern ring; the driving pin is coaxially arranged in the pipe body, the driving pin can be arranged in a sliding mode in the axis direction of the pipe body, and the end of the driving pin abuts against the sliding pin; the spring is located in the pipe body, can be telescopically arranged in the axis direction of the pipe body and is used for driving the driving pin to slide; and the damper is located in the pipe body, the damper can be telescopically arranged in the axis direction of the pipe body, the damper is located on the side, away from the driving pin, of the sliding pin, and the damper is used for abutting against the sliding pin. The structure can be simplified, the shaft diameter of the shaft core is small, the assembly difficulty is reduced, and the assembly efficiency is improved.

Description

Technical Field

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

[0002] At present, the hinges used for doors and windows include ordinary hinges and hydraulic damping hinges. Among them, the ordinary hinge has a simple structure and low manufacturing cost. Among them, the hydraulic damping hinge has the functions of automatic closing and buffering.

[0003] However, the existing hydraulic damping hinges on the market have a complex structure. The transmission piston inside is provided with a spiral groove for transmission, which makes the shaft diameter of the hinge large, and the manufacturing and assembly of the transmission piston are difficult. Moreover, the number of parts of the hydraulic damping structure of the hydraulic damping hinge is large. Therefore, the overall assembly efficiency of the hydraulic damping hinge is low, the production and manufacturing cost is high, and the price of the hydraulic damping hinge is high, which cannot be applied to the installation of doors and windows in ordinary families. Summary of the Utility Model

[0004] The utility model aims to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides a damping hinge, which can simplify the structure, has a small shaft diameter of the shaft core, reduces the assembly difficulty and improves the assembly efficiency.

[0005] A damping hinge according to an embodiment of the utility model includes: a shaft core, including a tube body and a collar coaxially and rotatably arranged, the collar is sleeved on the radial outer surface of the tube body, the tube body is connected with a first leaf, and the collar is connected with the second leaf; a transmission structure, including a sliding pin, a guiding channel and an inclined channel, the sliding pin is slidably arranged along the guiding channel and the inclined channel, the guiding channel is arranged in one of the tube body and the collar, and the inclined channel is arranged in the other of the tube body and the collar; a driving pin coaxially arranged inside the tube body, the driving pin is slidably arranged along the axial direction of the tube body, and the end of the driving pin abuts against the sliding pin; a spring located inside the tube body, the spring is telescopically arranged along the axial direction of the tube body, and the spring is used to drive the driving pin to slide; a damper located inside the tube body, the damper is telescopically arranged along the axial direction of the tube body, the damper is located on the side of the sliding pin away from the driving pin, and the damper is used to abut against the sliding pin.

[0006] A damping hinge according to an embodiment of the utility model has at least the following beneficial effects:

[0007] 1. By providing the tube body and the collar, and the collar is sleeved on the radial outer surface of the tube body, the tube body and the collar can rotate relative to each other, so that the first leaf and the second leaf can be opened and closed. Moreover, the collar has a simple structure, which is beneficial to reducing the manufacturing cost, and the assembly of the collar is also simple.

[0008] 2. The utility model realizes the automatic closing function of the doors and windows by setting a sliding pin, a guiding channel and an inclined channel. When the first blade and the second blade are opened, the pipe body and the collar rotate relative to each other, so that the sliding pin slides along the guiding channel and the inclined channel. The sliding pin can abut against the driving pin, so that the driving pin compresses the spring. When the first blade and the second blade are closed, the spring recovers its elastic deformation, and the spring drives the driving pin to slide, so that the driving pin pushes the sliding pin to slide along the guiding channel and the inclined channel. Meanwhile, the damper abuts against the sliding pin to slow down the closing speed of the doors and windows.

[0009] 3. By setting the driving pin, the driving pin has a simple structure and a small diameter, which is beneficial to reducing the diameter of the shaft core. Moreover, the driving pin is in contact connection with the spring and the sliding pin, so that the assembly of the driving pin is simpler and more convenient, which is beneficial to improving the assembly efficiency.

[0010] 4. By setting the damper, the damper is an independent accessory, which is convenient for assembly, disassembly, maintenance and replacement. There is no need to design a hydraulic damping structure, which is beneficial to reducing the number of parts of the hinge and avoiding oil leakage. Moreover, the sliding pin is in contact connection with the damper, and the damper is not fixedly connected to the sliding pin by penetration, so as to avoid the phenomenon of jamming during the sliding of the sliding pin with load.

[0011] A damping hinge according to an embodiment of the utility model, wherein the pipe body comprises a first pipe and a second pipe which are coaxially threadedly connected, and an annular groove is formed between the first pipe and the second pipe, and the annular groove accommodates the collar.

[0012] A damping hinge according to an embodiment of the utility model, wherein an abutting ring is coaxially arranged on the driving pin, and an annular portion is coaxially arranged inside the first pipe. After the driving pin passes through the center of the annular portion, the abutting ring can abut against the annular portion.

[0013] A damping hinge according to an embodiment of the utility model, wherein a positioning portion is coaxially arranged on the abutting ring, and the positioning portion is accommodated inside the spring.

[0014] A damping hinge according to an embodiment of the utility model, wherein the second pipe has a shaft portion for forming the bottom wall of the annular groove, and the inclined channel spirally extends along the radial outer surface of the shaft portion.

[0015] A damping hinge according to an embodiment of the utility model, wherein a first accommodating cavity is arranged inside the first pipe, the first accommodating cavity is used for accommodating the spring, and a first adjusting bolt is threadedly connected to the first accommodating cavity, and the end of the first adjusting bolt abuts against the spring.

[0016] A damping hinge according to an embodiment of the present invention, the second tube is provided with a second accommodation cavity for accommodating the damper, the second accommodation cavity is threadedly connected with a second adjustment bolt, and the end of the second adjustment bolt abuts against the damper.

[0017] A damping hinge according to an embodiment of the present invention, the outer surface of the radial direction of the second tube is provided with a first rack, the first blade has a first sleeve, and the second tube is tightly connected with the inner hole of the first sleeve through the first rack.

[0018] A damping hinge according to an embodiment of the present invention, the outer surface of the radial direction of the collar is provided with the guiding channel, the guiding channel extends along the axial direction of the collar and one end of the guiding channel is open.

[0019] A damping hinge according to an embodiment of the present invention, the outer surface of the radial direction of the collar is provided with a second rack, the second blade has a second sleeve, and the collar is tightly connected with the inner hole of the second sleeve through the second rack.

[0020] The additional aspects and advantages of the present invention will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0022] Figure 1 It is a schematic structural diagram of a damping hinge according to an embodiment of the present invention;

[0023] Figure 2 It is Figure 1 an exploded view of a damping hinge shown.

[0024] Reference numerals: 100 - pipe body, 110 - first pipe, 111 - first receiving cavity, 112 - first adjusting bolt, 113 - annular portion, 120 - second pipe, 121 - second receiving cavity, 122 - second adjusting bolt, 123 - shaft portion, 124 - first rack; 130 - annular groove, 200 - collar, 210 - second rack, 300 - first blade, 310 - first sleeve, 400 - second blade, 410 - second sleeve, 500 - transmission structure, 510 - sliding pin, 520 - guiding path, 530 - inclined path, 600 - driving pin, 610 - abutting ring, 620 - positioning portion, 700 - spring, 800 - damper. Detailed implementation manners

[0025] The embodiments of the present utility model will be described in detail below. Examples of the embodiments are shown in the accompanying drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the accompanying drawings are exemplary only for explaining the present utility model and should not be construed as limiting the present utility model.

[0026] In the description of the present utility model, it should be understood that for the orientation description, such as the orientation or positional relationship indicated by up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present utility model.

[0027] In the description of the present utility model, the meaning of several is one or more, the meaning of multiple is two or more, greater than, less than, exceeding, etc. are understood as not including the present number, and above, below, within, etc. are understood as including the present number. If the first and second are described, it is only for the purpose of distinguishing technical features and should not be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0028] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installed, connected and joined" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be directly connected or indirectly connected through an intermediate medium, and it may be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] A damping hinge according to an embodiment of the present utility model will be described below with reference to the accompanying drawings.

[0030] Refer toFigure 1 , an embodiment of a damping hinge is provided by the present utility model.

[0031] A damping hinge according to an embodiment of the present utility model includes a shaft core, a transmission structure 500, a driving pin 600, a spring 700, and a damper 800.

[0032] Specifically, the shaft core includes a tube body 100 and a collar 200 that are coaxially rotatably arranged. The collar 200 is sleeved on the radial outer surface of the tube body 100. The tube body 100 is connected to a first leaf 300, and the collar 200 is connected to a second leaf 400; referring to Figure 1 , the transmission structure 500 includes a sliding pin 510, a guiding channel 520, and an inclined channel 530. The sliding pin 510 is slidably arranged along the guiding channel 520 and the inclined channel 530. The guiding channel 520 is arranged in one of the tube body 100 and the collar 200, and the inclined channel 530 is arranged in the other of the tube body 100 and the collar 200; the driving pin 600 is coaxially arranged inside the tube body 100. The driving pin 600 is slidably arranged along the axial direction of the tube body 100. The end of the driving pin 600 abuts against the sliding pin 510; the spring 700 is located inside the tube body 100. The spring 700 is telescopically arranged along the axial direction of the tube body 100. The spring 700 is used to drive the sliding of the driving pin 600; the damper 800 is located inside the tube body 100. The damper 800 is telescopically arranged along the axial direction of the tube body 100. The damper 800 is located on the side of the sliding pin 510 away from the driving pin 600. The damper 800 is used to abut against the sliding pin 510.

[0033] It should be noted that, referring to Figure 2 , the guiding channel 520 can be arranged in the collar 200, and the inclined channel 530 can be arranged in the tube body 100.

[0034] Of course, in some other solutions, the guiding channel 520 can also be arranged in the tube body 100, and the inclined channel 530 can also be arranged in the collar 200.

[0035] In some embodiments of the present utility model, the tube body 100 includes a first tube 110 and a second tube 120 that are coaxially threadedly connected. An annular groove 130 is formed between the first tube 110 and the second tube 120. The annular groove 130 accommodates the collar 200.

[0036] It can be understood that the tube body 100 is composed of the first tube 110 and the second tube 120. The tube body 100 is of a split design, which is beneficial to reducing the manufacturing difficulty of the tube body 100, and thus, reducing the manufacturing cost of the tube body 100.

[0037] At the same time, by providing the annular groove 130 and the collar 200 being located in the annular groove 130, it is beneficial to reducing the diameter of the shaft core. Thus, the hinge has a small shaft diameter, which is beneficial to making the hinge applicable to a wider range of door and window series.

[0038] In a further embodiment of the present utility model, a contact ring 610 is coaxially arranged on the driving pin 600, and an annular portion 113 is coaxially arranged inside the first pipe 110. After the driving pin 600 passes through the center of the annular portion 113, the contact ring 610 can be in contact with the annular portion 113.

[0039] Therefore, when installing the driving pin 600, the driving pin 600 is inserted into the first pipe 110. The driving pin 600 passes through the center of the annular portion 113, and the contact ring 610 is used to contact the annular portion 113 to prevent the driving pin 600 from detaching from the first pipe 110. Thus, the installation of the driving pin 600 is more convenient.

[0040] Meanwhile, the contact ring 610 can be used to contact the spring 700, which can increase the contact area between the driving pin 600 and the spring 700.

[0041] In a further embodiment of the present utility model, a positioning portion 620 is coaxially arranged on the contact ring 610, and the positioning portion 620 is accommodated inside the spring 700. Thus, it is beneficial for the driving pin 600 to drive the spring 700 to compress.

[0042] In a further embodiment of the present utility model, referring to Figure 2 , the second pipe 120 has a shaft portion 123 for forming the bottom wall of the annular groove 130, and the inclined channel 530 spirally extends along the radial outer surface of the shaft portion 123.

[0043] It should be noted that two inclined channels 530 can be provided, and the two inclined channels 530 are symmetrically distributed on the outer periphery of the shaft portion 123. Therefore, the sliding pin 510 can be inserted between the two inclined channels 530, which is beneficial for the sliding pin 510 to slide more smoothly.

[0044] When installing the collar 200, the collar 200 can be sleeved on the shaft portion 123, and then, the first pipe 110 and the second pipe 120 are threadedly connected together.

[0045] In a further embodiment of the present utility model, a first accommodation cavity 111 is arranged inside the first pipe 110. The first accommodation cavity 111 is used to accommodate the spring 700, and a first adjusting bolt 112 is threadedly connected to the first accommodation cavity 111. The end of the first adjusting bolt 112 abuts against the spring 700.

[0046] Therefore, according to the needs of use, the position of the first adjusting bolt 112 in the first accommodation cavity 111 can be adjusted. Thus, the spring force of the spring 700 can be changed, and the closing speed of the door and window can be changed to achieve the most ideal door closing effect.

[0047] In a further embodiment of the present utility model, the second tube 120 is provided with a second receiving cavity 121 for receiving the damper 800. The second receiving cavity 121 is threadedly connected with a second adjusting bolt 122, and the end of the second adjusting bolt 122 abuts against the damper 800.

[0048] Therefore, according to the needs of use, the position of the second adjusting bolt 122 in the second receiving cavity 121 can be adjusted, thereby changing the damping force of the damper 800, enabling the control of various speed changes and achieving the most ideal door closing effect.

[0049] In a further embodiment of the present utility model, a first rack 124 is provided on the radially outer surface of the second tube 120. The first blade 300 has a first sleeve 310, and the second tube 120 is tightly connected with the inner hole of the first sleeve 310 through the first rack 124, thereby connecting and fixing the second tube 120 and the first sleeve 310 and preventing relative rotation between the second tube 120 and the first sleeve 310.

[0050] It can be understood that a plurality of first racks 124 are provided, and the plurality of first racks 124 are arranged circumferentially along the second tube 120.

[0051] In some embodiments of the present utility model, referring to Figure 2 , a guiding channel 520 is provided on the radially outer surface of the collar 200. The guiding channel 520 extends along the axial direction of the collar 200 and one end of the guiding channel 520 is open.

[0052] Therefore, the sliding pin 510 can enter the guiding channel 520 from the open end of the guiding channel 520, making the installation of the collar 200 easier.

[0053] In some embodiments of the present utility model, a second rack 210 is provided on the radially outer surface of the collar 200. The second blade 400 has a second sleeve 410, and the collar 200 is tightly connected with the inner hole of the second sleeve 410 through the second rack 210, thereby connecting and fixing the collar 200 and the second sleeve 410 and preventing relative rotation between the collar 200 and the second sleeve 410.

[0054] It can be understood that a plurality of second racks 210 are provided, and the plurality of second racks 210 are arranged circumferentially along the collar 200.

[0055] Therefore, this embodiment has the following effects:

[0056] 1. The utility model sets a tube body 100 and a collar 200. The collar 200 is sleeved on the radial outer surface of the tube body 100, enabling the tube body 100 and the collar 200 to rotate relative to each other, which in turn allows the first blade 300 and the second blade 400 to open and close. Moreover, the collar 200 has a simple structure, which is conducive to reducing the manufacturing cost, and the assembly of the collar 200 is also simple.

[0057] 2. The utility model sets a sliding pin 510, a guiding channel 520 and an inclined channel 530. When the first blade 300 and the second blade 400 are opened, the tube body 100 and the collar 200 rotate relative to each other, causing the sliding pin 510 to slide along the guiding channel 520 and the inclined channel 530. The sliding pin 510 can abut against the driving pin 600, enabling the driving pin 600 to compress the spring 700. When the first blade 300 and the second blade 400 are closed, the spring 700 recovers its elastic deformation, and the spring 700 drives the driving pin 600 to slide, causing the driving pin 600 to push the sliding pin 510 to slide along the guiding channel 520 and the inclined channel 530, realizing the automatic closing function of the door and window. At the same time, the damper 800 abuts against the sliding pin 510 to slow down the closing speed of the door and window.

[0058] 3. The utility model sets a driving pin 600. The driving pin 600 has a simple structure and a small diameter, which is conducive to reducing the diameter of the shaft core. Moreover, the driving pin 600 is in contact connection with the spring 700 and the sliding pin 510, making the assembly of the driving pin 600 simpler and more convenient, and conducive to improving the assembly efficiency.

[0059] 4. The utility model sets a damper 800. As an independent accessory, the damper 800 is convenient for assembly, disassembly, maintenance and replacement, and there is no need to design a hydraulic damping structure, which is conducive to reducing the number of hinge parts and avoiding oil leakage. Moreover, the sliding pin 510 is in contact connection with the damper 800, and the damper 800 is not fixedly connected to the sliding pin 510 by penetration, avoiding the phenomenon of jamming during the sliding of the sliding pin 510 with load.

[0060] In the description of this specification, the description with reference to terms such as "one embodiment, some embodiments, illustrative embodiments, examples, specific examples or some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples.

[0061] The embodiments of the present utility model have been described in detail above in conjunction with the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. A damping hinge, characterized in that: include: The shaft core comprises a tube body (100) and a sleeve (200) which are coaxially rotatably arranged, the sleeve (200) being sleeved on the radial outer surface of the tube body (100), the tube body (100) being connected to a first leaf sheet (300), and the sleeve (200) being connected to a second leaf sheet (400); A transmission structure (500) comprising a sliding pin (510), a guide path (520) and an inclined path (530), wherein the sliding pin (510) can be slidably arranged along the guide path (520) and the inclined path (530), the guide path (520) is arranged on one of the tube body (100) and the collar (200), and the inclined path (530) is arranged on the other of the tube body (100) and the collar (200); A driving pin (600) is coaxially arranged inside the tube body (100), the driving pin (600) can be slidably arranged along the axial direction of the tube body (100), and the end of the driving pin (600) abuts against the sliding pin (510); A spring (700) is located inside the tube body (100), the spring (700) can be telescopically arranged along the axial direction of the tube body (100), and the spring (700) is used to drive the driving pin (600) to slide; The damper (800) is located in the tube body (100). The damper (800) can be telescopically arranged along the axial direction of the tube body (100). The damper (800) is located on a side of the sliding pin (510) away from the driving pin (600). The damper (800) is used to abut against the sliding pin (510).

2. A damping hinge according to claim 1, characterized in that: The tube body (100) comprises a first tube (110) and a second tube (120) coaxially threadedly connected, an annular groove (130) is formed between the first tube (110) and the second tube (120), and the annular groove (130) accommodates the collar (200).

3. A damping hinge according to claim 2, characterized in that: The driving pin (600) is coaxially provided with an abutment ring (610), and an annular portion (113) is coaxially provided inside the first tube (110). After the driving pin (600) passes through the center of the annular portion (113), the abutment ring (610) can abut against the annular portion (113).

4. A damping hinge according to claim 3, characterized in that: The abutment ring (610) is coaxially provided with a positioning portion (620), and the inner side of the spring (700) accommodates the positioning portion (620).

5. A damping hinge according to claim 2, characterized in that: The second tube (120) has a shaft portion (123) for forming a bottom wall of the annular groove (130), and the ramp (530) extends spirally along a radial outer surface of the shaft portion (123).

6. A damping hinge according to claim 2, characterized in that: A first accommodating cavity (111) is provided inside the first tube (110), the first accommodating cavity (111) being used to accommodate the spring (700), a first adjusting bolt (112) being threadedly connected to the first accommodating cavity (111), the end of the first adjusting bolt (112) being in contact with the spring (700).

7. A damping hinge according to claim 2, characterized in that: The second tube (120) is provided with a second accommodating cavity (121), the second accommodating cavity (121) being used to accommodate the damper (800), the second accommodating cavity (121) being threadedly connected with a second adjusting bolt (122), the end of the second adjusting bolt (122) being in contact with the damper (800).

8. The damping hinge according to claim 2, characterized in that: The radial outer surface of the second tube (120) is provided with a first rack (124), the first leaf (300) has a first sleeve (310), and the second tube (120) is tightly connected to the inner hole of the first sleeve (310) via the first rack (124).

9. The damping hinge according to claim 1, characterized in that: The guide channel (520) is provided on the radial outer surface of the collar (200), the guide channel (520) extends along the axial direction of the collar (200) and one end of the guide channel (520) is open.

10. The damping hinge according to claim 1, characterized in that: A second rack (210) is provided on the radial outer surface of the collar (200), the second leaf (400) has a second sleeve (410), and the collar (200) is tightly connected to the inner hole of the second sleeve (410) via the second rack (210).

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