Damping hinge shaft core

Abstract

The utility model discloses a damping hinge shaft core, which comprises a cylinder assembly, a first cylinder and a second cylinder, and the first cylinder and the second cylinder are coaxially and rotatably arranged; the transmission assembly is arranged between the first barrel body and the second barrel body and comprises a pushing piece and a sliding piece, the pushing piece is fixedly arranged on one of the first barrel body and the second barrel body, and the sliding piece is arranged on the other one of the first barrel body and the second barrel body in a sliding mode; wherein the sliding piece can axially slide along a rotating axis formed by the first barrel and the second barrel, and a chute for transmission is arranged between the pushing piece and the sliding piece; the elastic assembly is used for driving the sliding part to axially slide along a rotating axis formed by the first barrel and the second barrel; the buffering assembly comprises a damper, the damper can stretch out and draw back in the sliding direction of the sliding part, and the damper is arranged on the side, away from the elastic assembly, of the sliding part. According to the utility model, the structure is simplified, the production process is simplified, and the production cost is reduced.

Description

Technical Field

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

[0002] Hinges are commonly used as hinge structures for building doors and windows, including a first leaf, a second leaf and an axis core, wherein the axis core connects the first leaf and the second leaf so that the first leaf and the second leaf rotate around the axis core.

[0003] In order to enable the doors and windows to close automatically, a spring structure is added inside the shaft core to utilize the elastic force to automatically close and reset the doors and windows.

[0004] Furthermore, in order to achieve a buffering function during the closing process of doors and windows, a hydraulic damping structure will be added inside the shaft core, and the hydraulic damping structure will be used to close the doors and windows to achieve a closing buffering effect.

[0005] However, the existing hydraulic damping shaft core needs to be injected with oil, and has a complex structure and many parts, which makes the production process complicated, the production and assembly difficult, and the production cost high. Utility Model Content

[0006] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a damping hinge shaft core, which can simplify the structure, simplify the production process, and reduce the production cost.

[0007] According to a first aspect of the present invention, a damping hinge shaft core includes a cylinder assembly, including a first cylinder and a second cylinder, and the first cylinder and the second cylinder can be coaxially rotatably arranged; a transmission assembly is arranged between the first cylinder and the second cylinder, and includes a pusher and a sliding member, the pusher is fixedly arranged on one of the first cylinder and the second cylinder, and the sliding member is slidably arranged on the other of the first cylinder and the second cylinder; wherein the sliding member can slide axially along the rotation axis formed by the first cylinder and the second cylinder, and a ramp for transmission is arranged between the pusher and the sliding member; an elastic assembly is used to drive the sliding member to slide axially along the rotation axis formed by the first cylinder and the second cylinder; a buffer assembly includes a damper, the damper can be extended and retracted along the sliding direction of the sliding member, and the damper is arranged on the side of the sliding member away from the elastic assembly.

[0008] A damping hinge shaft core according to an embodiment of the utility model has at least the following beneficial effects:

[0009] 1. The utility model provides a first cylinder and a second cylinder, which can rotate relatively, so that the leaf can rotate around the rotation axis formed by the first cylinder and the second cylinder, providing a basis for the structural arrangement of the elastic component and the buffer component.

[0010] 2. The utility model sets a pushing member and a sliding member, wherein the pushing member is fixedly arranged and the sliding member is slidably arranged. Therefore, when the first cylinder and the second cylinder rotate relatively, under the transmission action of the ramp, the pushing member passes through the ramp, so that the sliding member slides axially along the rotation axis formed by the first cylinder and the second cylinder. The sliding member can generate a force on the elastic component and the buffer component, thereby making the transmission structure simple and durable.

[0011] 3. The utility model is provided with an elastic component, so that under the action of external force, the first cylinder and the second cylinder rotate relatively, the sliding member slides close to the elastic component, the elastic component undergoes elastic deformation, and when the elastic component recovers the elastic deformation, the sliding member slides away from the elastic component. That is to say, when opening the door, the sliding member slides to cause the elastic component to undergo elastic deformation, and when closing the door, the elastic component recovers the elastic deformation to drive the sliding member to slide, thereby realizing the function of automatically closing doors and windows under the action of the elastic force of the elastic component.

[0012] 4. The utility model sets a damper, so that during the door closing process, the elastic component drives the sliding member to slide close to the damper, and the damper generates a damping force on the sliding member, thereby causing the door and window to close slowly, thereby realizing the closing buffer function.

[0013] 5. Compared with the traditional hydraulic damping shaft core, the utility model does not need to design and manufacture the hydraulic damping structure. At the same time, the shaft core does not need to be injected with oil, thereby reducing the number of parts, greatly simplifying the structure, simplifying the production process, making assembly more convenient, and thus greatly reducing production costs.

[0014] According to some embodiments of the utility model, the first cylinder has a first sleeve, the sliding member is accommodated inside the first sleeve, one of the first sleeve and the sliding member is provided with a limiting groove, and the other of the first sleeve and the sliding member is provided with a limiting portion, and the limiting portion slides along the limiting groove.

[0015] According to some embodiments of the utility model, there are two limit grooves, which are symmetrically arranged on the outer periphery of the first sleeve, and the limit portion is a pin, which is arranged on the sliding member, and both ends of the pin extend into the two limit grooves respectively.

[0016] According to some embodiments of the utility model, the elastic component includes a spring, which is located inside the first cylinder and can be extended and retracted along the sliding direction of the sliding member. An adjustment structure is provided at one end of the spring away from the sliding member, and the adjustment structure is used to adjust the elastic force of the spring.

[0017] According to some embodiments of the utility model, the adjustment structure includes an adjusting bolt and a pressing plate, the adjusting bolt is coaxially arranged with the first cylinder, a threaded portion screwed with the adjusting bolt is arranged on the inner side of the first cylinder, and the pressing plate is arranged between the spring and the adjusting bolt.

[0018] According to some embodiments of the utility model, the ramp has a transmission section, the sliding member is a cylindrical rod, the cylindrical rod is coaxially arranged with the second cylinder, and the transmission section extends spirally along the circumferential outer side of the cylindrical rod.

[0019] According to some embodiments of the utility model, the ramp further comprises a positioning section, the positioning section is connected to an end of the transmission section away from the elastic component, and the positioning section extends in a ring shape along the circumference of the cylindrical rod.

[0020] According to some embodiments of the present invention, the pushing member is a sliding pin, the sliding pin is inserted and fixed in the second cylinder, and the sliding pin penetrates into the inclined channel.

[0021] According to some embodiments of the utility model, the sliding pin is provided with a coaxially rotatable pin sleeve, and the sliding pin slides along the ramp through the pin sleeve.

[0022] According to some embodiments of the utility model, the buffer assembly also includes a spiral sleeve, which is coaxially threaded with the second cylinder, the damper is accommodated inside the spiral sleeve, and an abutment portion is provided on the side of the spiral sleeve away from the sliding member, the abutment portion abuts against the damper, so that the damper abuts against the sliding member.

[0023] According to some embodiments of the present utility model, the second cylinder is coaxially connected to an outer sleeve, the first cylinder is accommodated inside the outer sleeve, and the outer sleeve is rotatably connected to the first cylinder.

[0024] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0026] Figure 1This is a schematic structural diagram of a damping hinge shaft core according to an embodiment of the utility model;

[0027] Figure 2 for Figure 1 An exploded view of a damping hinge shaft core is shown;

[0028] Figure 3 for Figure 1 A schematic structural diagram of a sliding member of a damping hinge shaft core is shown;

[0029] Figure 4 for Figure 1 A partial view of a damping hinge shaft core is shown.

[0030] Figure numerals: 100 - first cylinder, 110 - second cylinder, 120 - pushing member, 130 - sliding member, 140 - damper, 150 - limiting groove, 160 - limiting part, 170 - spring, 180 - adjusting bolt, 190 - pressing plate, 200 - transmission section, 210 - positioning section, 220 - pin sleeve, 230 - spiral sleeve, 240 - outer sleeve, 250 - ramp. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] A damping hinge shaft core according to an embodiment of the utility model is described below in conjunction with the accompanying drawings.

[0036] Reference Figure 1 A damping hinge shaft core according to an embodiment of the utility model includes a cylinder assembly, a transmission assembly, an elastic assembly and a buffer assembly.

[0037] The barrel assembly includes a first barrel 100 and a second barrel 110 , and the first barrel 100 and the second barrel 110 are coaxially rotatable.

[0038] It can be understood that the first cylinder 100 can be connected to the first sheet, the second cylinder 110 can be connected to the second sheet, and the first sheet and the second sheet can rotate around the rotation axis formed by the first cylinder 100 and the second cylinder 110.

[0039] In some embodiments of the present invention, the second barrel 110 is coaxially connected to the outer sleeve 240 , the outer sleeve 240 accommodates the first barrel 100 inside, and the outer sleeve 240 is rotatably connected to the first barrel 100 .

[0040] Therefore, by using the outer sleeve 240 to be sleeved outside the first barrel 100, the rotational connection strength between the second barrel 110 and the first barrel 100 is improved, ensuring that the second barrel 110 and the first barrel 100 have good coaxiality.

[0041] The transmission assembly is disposed between the first cylinder 100 and the second cylinder 110 , and includes a pusher 120 and a slide 130 . The pusher 120 is fixedly disposed on one of the first cylinder 100 and the second cylinder 110 , and the slide 130 is slidably disposed on the other of the first cylinder 100 and the second cylinder 110 .

[0042] It should be noted that, in some technical solutions, the pusher 120 may be fixedly disposed on the first cylinder 100 , and the sliding member 130 may be slidably disposed on the second cylinder 110 ;

[0043] In some other technical solutions, the pushing member 120 may also be fixedly disposed on the second cylinder 110 , and the sliding member 130 may also be slidably disposed on the first cylinder 100 .

[0044] Furthermore, the sliding member 130 can slide axially along the rotation axis formed by the first cylinder 100 and the second cylinder 110 , and a transmission ramp 250 is provided between the pushing member 120 and the sliding member 130 .

[0045] It can be understood that the pusher 120 is fixed and the sliding member 130 is slidable. Therefore, when the first cylinder 100 and the second cylinder 110 rotate relative to each other, the sliding member 130 slides axially along the rotation axis formed by the first cylinder 100 and the second cylinder 110 under the transmission action of the ramp 250.

[0046] In a further embodiment of the utility model, the first cylinder 100 has a first sleeve, the sliding member 130 is accommodated inside the first sleeve, one of the first sleeve and the sliding member 130 is provided with a limiting groove 150, and the other of the first sleeve and the sliding member 130 is provided with a limiting portion 160, and the limiting portion 160 slides along the limiting groove 150.

[0047] It should be noted that the limiting groove 150 can be extended along the axial direction of the first sleeve, and the two ends of the limiting groove 150 can be closed to prevent the sliding member 130 from detaching from the first sleeve, so that the sliding member 130 can rotate with the first cylinder 100 and the sliding member 130 can slide along the axial direction of the first cylinder 100.

[0048] In addition, in some technical solutions, the first sleeve may be provided with a limiting groove 150, and the sliding member 130 may be provided with a limiting portion 160;

[0049] In some other technical solutions, the sliding member 130 may also be provided with a limiting groove 150 , and the first sleeve may also be provided with a limiting portion 160 .

[0050] In some specific embodiments of the present invention, refer to Figure 1 , Figure 2 and Figure 4 There are two limiting grooves 150 , which are symmetrically arranged on the outer periphery of the first sleeve. The limiting portion 160 is a pin, which is arranged on the sliding member 130 , and both ends of the pin extend into the two limiting grooves 150 respectively.

[0051] Therefore, two additional limiting grooves 150 are provided so that the pin can move in the two limiting grooves 150 at the same time, thereby improving the sliding stability of the sliding member 130 .

[0052] Moreover, when the pin is installed, it can pass through the limiting groove 150 on one side of the first sleeve, the through hole of the sliding member 130, and the limiting groove 150 on the other side of the first sleeve in sequence, which greatly facilitates the installation.

[0053] In some embodiments of the present invention, referring to Figure 3The ramp 250 has a transmission section 200, the sliding member 130 is a cylindrical rod, the cylindrical rod is coaxially arranged with the second cylinder 110, and the transmission section 200 extends spirally along the circumferential outer side of the cylindrical rod.

[0054] Therefore, when the first cylinder 100 and the second cylinder 110 rotate relative to each other, under the transmission action of the transmission section 200, the pushing member 120 passes through the transmission section 200, and the pushing member 120 causes the sliding member 130 to slide axially along the rotation axis formed by the first cylinder 100 and the second cylinder 110, thereby greatly improving the transmission efficiency.

[0055] In order to realize the positioning function during the door opening process, the ramp 250 also has a positioning section 210. The positioning section 210 is connected to the end of the transmission section 200 away from the elastic component. The positioning section 210 extends in a ring shape along the circumference of the cylindrical rod. The push member 120 passes through the positioning section 210 and will not cause the sliding member 130 to slide, thereby positioning the door and window.

[0056] In some embodiments of the present invention, referring to Figure 1 , Figure 2 and Figure 4 The pusher 120 is a sliding pin, which is inserted and fixed in the second cylinder 110 and penetrates into the ramp 250 .

[0057] It should be noted that the sliding pin has a simple structure, and the ramp 250 accommodates the sliding pin, so that the sliding pin pushes the sliding member 130 under the action of the ramp 250 .

[0058] Moreover, when the sliding pin is installed, it can pass through the outside of the second cylinder 110 in sequence and then enter the ramp 250, which greatly facilitates the installation.

[0059] In order to reduce the friction between the sliding pin and the ramp 250, the sliding pin is provided with a coaxially rotatable pin sleeve 220. The sliding pin slides along the ramp 250 through the pin sleeve 220, so that the sliding pin is rollingly connected with the ramp 250 through the pin sleeve 220 to reduce wear.

[0060] The elastic component is used to drive the sliding member 130 to slide axially along the rotation axis formed by the first cylinder 100 and the second cylinder 110 .

[0061] Furthermore, the elastic component includes a spring 170 , which is located inside the first cylinder 100 and can be extended and retracted along the sliding direction of the sliding member 130 . An adjustment structure is provided at one end of the spring 170 away from the sliding member 130 , and the adjustment structure is used to adjust the elastic force of the spring 170 .

[0062] Therefore, the tightness of the spring 170 can be adjusted by using the adjustment structure so as to adapt to closing doors and windows of different weights.

[0063] Furthermore, the adjustment structure includes an adjustment bolt 180 and a pressing plate 190 . The adjustment bolt 180 is coaxially arranged with the first cylinder 100 . A threaded portion screwed with the adjustment bolt 180 is arranged on the inner side of the first cylinder 100 . The pressing plate 190 is arranged between the spring 170 and the adjustment bolt 180 .

[0064] The adjusting bolt 180 may be a force adjusting screw, which contacts the end of the spring 170 by means of the pressing sheet 190 , thereby increasing the contact area between the force adjusting screw and the spring 170 , and ensuring that the spring force of the spring 170 can be adjusted normally.

[0065] The buffer assembly includes a damper 140 , which can be extended and retracted along the sliding direction of the sliding member 130 , and the damper 140 is disposed on a side of the sliding member 130 away from the elastic assembly.

[0066] It should be noted that the damper 140 may be a damper 140 with adjustable damping force, or a damper 140 with non-adjustable damping force.

[0067] In some embodiments of the utility model, the buffer assembly also includes a spiral sleeve 230, which is coaxially threaded with the second cylinder 110, and the damper 140 is accommodated inside the spiral sleeve 230. A contact portion is provided on the side of the spiral sleeve 230 away from the sliding member 130, and the contact portion abuts against the damper 140, so that the damper 140 abuts against the sliding member 130.

[0068] The damping force of the damper 140 is adjusted by using the spiral sleeve 230, thereby changing the buffering effect when closing the door.

[0069] Therefore, the working principle of this embodiment is as follows:

[0070] During the process of opening the door and window, the first cylinder 100 and the second cylinder 110 rotate relative to each other. Under the transmission action of the transmission section 200, when the pushing member 120 passes through the transmission section 200, the pushing member 120 causes the sliding member 130 to slide axially along the rotation axis formed by the first cylinder 100 and the second cylinder 110. The sliding member 130 slides close to the spring, and the elastic component undergoes elastic deformation; when the pushing member 120 passes through the positioning section 210, it will not push the sliding member 130, and the sliding member 130 stops sliding, which makes the door and window open and positioned.

[0071] During the closing process of doors and windows, the first cylinder 100 and the second cylinder 110 rotate relative to each other, and the spring restores its elastic deformation. At the same time, the pusher 120 passes through the transmission section 200 to drive the sliding member 130 to slide, thereby realizing the function of automatically closing the doors and windows; moreover, the sliding member 130 slides close to the damper 140, and the damper 140 generates a damping force on the sliding member 130, so that the doors and windows close slowly, thereby realizing the closing buffer function.

[0072] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the 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 any one or more embodiments or examples in a suitable manner.

[0073] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Various changes can be made within the knowledge scope of ordinary technicians in the technical field without departing from the purpose of the present invention.

Claims

1. A damping hinge shaft core, characterized in that: include: A barrel assembly comprises a first barrel (100) and a second barrel (110), wherein the first barrel (100) and the second barrel (110) are coaxially rotatable; a transmission assembly, arranged between the first cylinder (100) and the second cylinder (110), comprising a pushing member (120) and a sliding member (130), wherein the pushing member (120) is fixedly arranged on one of the first cylinder (100) and the second cylinder (110), and the sliding member (130) is slidably arranged on the other of the first cylinder (100) and the second cylinder (110); The sliding member (130) can slide axially along the rotation axis formed by the first cylinder (100) and the second cylinder (110), and a transmission ramp (250) is provided between the pushing member (120) and the sliding member (130); An elastic component, used for driving the sliding member (130) to slide axially along the rotation axis formed by the first cylinder (100) and the second cylinder (110); The buffer component comprises a damper (140), wherein the damper (140) can be extended and retracted along the sliding direction of the sliding member (130), and the damper (140) is arranged on a side of the sliding member (130) away from the elastic component.

2. A damping hinge shaft core according to claim 1, characterized in that: The first cylinder (100) has a first sleeve, the sliding member (130) is accommodated inside the first sleeve, one of the first sleeve and the sliding member (130) is provided with a limiting groove (150), and the other of the first sleeve and the sliding member (130) is provided with a limiting portion (160), and the limiting portion (160) slides along the limiting groove (150).

3. A damping hinge shaft core according to claim 2, characterized in that: There are two limiting grooves (150), which are symmetrically arranged on the outer circumference of the first sleeve. The limiting portion (160) is a pin, which is arranged on the sliding member (130), and both ends of the pin extend into the two limiting grooves (150) respectively.

4. A damping hinge shaft core according to claim 1, characterized in that: The elastic component comprises a spring (170), wherein the spring (170) is located inside the first cylinder (100) and can be extended and retracted along the sliding direction of the sliding member (130), and an adjustment structure is provided at one end of the spring (170) away from the sliding member (130), and the adjustment structure is used to adjust the elastic force of the spring (170).

5. A damping hinge shaft core according to claim 4, characterized in that: The adjustment structure comprises an adjustment bolt (180) and a pressing plate (190); the adjustment bolt (180) is coaxially arranged with the first cylinder (100); a threaded portion screwed with the adjustment bolt (180) is arranged on the inner side of the first cylinder (100); and the pressing plate (190) is arranged between the spring (170) and the adjustment bolt (180).

6. A damping hinge shaft core according to claim 1, characterized in that: The ramp (250) has a transmission section (200), the sliding member (130) is a cylindrical rod, the cylindrical rod is coaxially arranged with the second cylinder (110), and the transmission section (200) extends spirally along the circumferential outer side of the cylindrical rod.

7. A damping hinge shaft core according to claim 6, characterized in that: The ramp (250) further comprises a positioning section (210), wherein the positioning section (210) is connected to an end of the transmission section (200) away from the elastic component, and the positioning section (210) extends in a ring shape along the circumference of the cylindrical rod.

8. The damping hinge shaft core according to claim 1, characterized in that: The pushing member (120) is a sliding pin, the sliding pin is inserted and fixed in the second cylinder (110), and the sliding pin penetrates into the inclined channel (250).

9. A damping hinge shaft core according to claim 8, characterized in that: The sliding pin is provided with a coaxially rotatable pin sleeve (220), and the sliding pin slides along the inclined path (250) through the pin sleeve (220).

10. The damping hinge shaft core according to claim 1, characterized in that: The buffer assembly further comprises a spiral sleeve (230), wherein the spiral sleeve (230) is coaxially threadedly connected to the second cylinder (110), wherein the spiral sleeve (230) accommodates the damper (140) therein, and an abutment portion is provided on a side of the spiral sleeve (230) away from the sliding member (130), wherein the abutment portion abuts against the damper (140), so that the damper (140) abuts against the sliding member (130).

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