Damper and damping hinge

Abstract

The present invention relates to the technical field of hinges, and discloses a damper and a damping hinge including the same, wherein the damper includes: a cylinder body, an inner chamber of which is provided; a piston, which is provided in the inner chamber and divides the inner chamber into a first chamber and a second chamber; an elastic member, which is provided in the first chamber, and the elastic member is respectively connected to the front end of the piston and the cylinder body; and a piston rod, the front end of which is provided in the second chamber and connected to the piston, and the rear end of the piston rod passes through the rear end of the cylinder body and is provided outside the cylinder body; wherein a protrusion and a groove are provided on the front end outer wall of the cylinder body with the central axis of the cylinder body as the center, and the front end outer wall of the cylinder body is uneven as a whole. The beneficial effects of the present invention are: it can effectively enhance the strength of the cylinder body and improve the service life of the damper; and it saves the internal space and service life of the damping hinge including the damper.

Description

Technical Field

[0001] The present invention relates to the technical field of hinges, and in particular to a damper and a damping hinge comprising the same. Background Art

[0002] Hinges are mainly installed on doors and windows, and more often on cabinets and furniture door panels. They are mainly divided into stainless steel hinges and iron hinges according to the material classification. In order to give people a better enjoyment, damping hinges (also known as buffer hinges) have appeared. The damping hinge has a damping device inside or outside. Its characteristic is that it provides 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 closing.

[0003] In a specific damping hinge, the cylinder of the damper is usually pushed or pulled, so that the elastic member in the damper generates resistance against the return of the torsion spring, thereby playing an effective buffering role; however, since the cylinder needs to interact with other components during the opening and closing process, the cylinder is easily damaged due to frequent force, resulting in a short service life of the damper. Summary of the Invention

[0004] One object of the present application is to provide a damper that can effectively enhance the strength of a cylinder body to increase the service life of the damper. Another object of the present application is to provide a damping hinge including the damper.

[0005] The purpose of this application is achieved through the following technical solutions:

[0006] A damper comprising:

[0007] a cylinder body, wherein an inner chamber is provided;

[0008] a piston disposed in the inner chamber and dividing the inner chamber into a first chamber and a second chamber;

[0009] an elastic member disposed in the first chamber, the elastic member being connected to the front ends of the piston and the cylinder respectively; and

[0010] a piston rod, a front end of which is disposed in the second chamber and connected to the piston, and a rear end of which passes through the rear end of the cylinder body and is disposed outside the cylinder body;

[0011] Wherein, a protrusion and a groove are provided on the front end outer wall of the cylinder body with the central axis of the cylinder body as the center, and the front end outer wall of the cylinder body is uneven as a whole.

[0012] In the above damper, optionally, the front end outer wall of the cylinder body includes at least the groove arranged along the outer edge thereof.

[0013] In the above damper, optionally, the cylinder comprises:

[0014] a barrel, wherein the inner chamber is defined within the barrel; and

[0015] an outer ring body, which is sleeved on the outer circumference of the cylinder;

[0016] The front end outer wall of the cylinder and the front end outer wall of the outer ring body are jointly defined as the front end outer wall of the cylinder, and the front end of the outer ring body is lower than the front end of the cylinder, so that the front end outer wall of the cylinder is defined as the groove along its outer edge.

[0017] In the above damper, optionally, the front end inner wall of the cylinder body is in a concave-convex shape consistent with the shape of the front end outer wall of the cylinder body, so that the front end of the first chamber is concave relative to the convex part to form a sub-chamber;

[0018] The front end portion of the elastic member is disposed in the sub-chamber.

[0019] In the above damper, optionally, the elastic member is a compression spring or a tension spring.

[0020] In the above damper, optionally, a gasket is provided on the front end surface of the first chamber and / or the front end surface of the sub-chamber.

[0021] A damping hinge comprises any one of the dampers described above.

[0022] The damping hinge may optionally further include:

[0023] A housing assembly, which is used to be mounted on a fixed wall, wherein a first rotating shaft is mounted on the housing assembly;

[0024] a hinge cup for mounting on the movable plate;

[0025] a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0026] a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0027] a torsion spring sleeved on the outside of the first rotating shaft, with two ends of the torsion spring respectively connected to the housing assembly and the first linking member, or respectively connected to the housing assembly and the second linking member; and

[0028] a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member;

[0029] In which, the damper is arranged in the shell assembly, the front end of the cylinder body is closer to the hinge cup than the rear end thereof, and the front end of the cylinder body is connected to the first rotating shaft or the torsion spring; when the hinge cup rotates relative to the shell assembly to close the movable plate, the second linkage rotates and drives the bearing seat to slide, thereby causing the bearing seat to push the piston rod, and the damper generates resistance to counteract the resetting of the torsion spring.

[0030] In the above-mentioned damping hinge, optionally, a blocking portion is provided in the groove, and the front end of the cylinder body is connected to the first rotating shaft or the torsion spring through the blocking portion.

[0031] In the above-mentioned damping hinge, optionally, the front end surface of the blocking portion is higher than the front end surface of each of the protrusions, and the front end surface of the blocking portion is in contact with the first rotating shaft or the torsion spring.

[0032] The damping hinge may optionally further include:

[0033] A housing assembly, which is used to be installed on a fixed wall, and the housing assembly is provided with a blocking portion;

[0034] a hinge cup for mounting on the movable plate;

[0035] a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0036] a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0037] a torsion spring, two ends of which are respectively connected to the housing assembly and the first linking member, or respectively connected to the housing assembly and the second linking member;

[0038] a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member;

[0039] In which, the damper is slidably arranged in the supporting seat, and the front end of the cylinder body is closer to the hinge cup than its rear end, and the front end of the cylinder body is connected to the blocking part; when the hinge cup rotates relative to the shell assembly to close the movable plate, the second linkage rotates and drives the supporting seat to slide, thereby causing the supporting seat to push the piston rod, and the damper generates resistance to counteract the restoration of the torsion spring.

[0040] In the above-mentioned damping hinge, optionally, the blocking portion is connected to a groove on the front end exterior of the cylinder body.

[0041] In the above damping hinge, optionally, the front end outer wall of the cylinder body includes at least the groove arranged along the outer edge thereof, and the groove arranged along the edge of the front end outer wall of the cylinder body is an abutment groove;

[0042] The front end of the cylinder body cooperates and abuts against the blocking portion through the abutting groove.

[0043] In the above-mentioned damping hinge, optionally, the front side surface of the blocking portion is higher than the front end surface of each of the protrusions.

[0044] In the above damping hinge, optionally, the blocking portion and the abutting groove abut against each other in surface contact or line contact.

[0045] The damping hinge may optionally further include:

[0046] a housing assembly for mounting on a fixed wall;

[0047] a hinge cup, which is used to mount the movable panel;

[0048] a first linking member, one end of which is rotatably connected to the hinge cup, the other end of which is rotatably connected to the housing assembly, and a blocking portion being provided on the first linking member;

[0049] a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0050] a torsion spring, two ends of which are respectively connected to the housing assembly and the first linking member, or respectively connected to the housing assembly and the second linking member;

[0051] a bearing seat, which is arranged in the housing assembly;

[0052] In which, the damper is arranged in the shell assembly, and the front end of the cylinder body is closer to the hinge cup than its rear end, the blocking part is connected to the front end of the cylinder body, and the bearing seat is in abutment with the rear end of the piston rod; when the hinge cup rotates relative to the shell assembly to close the movable plate, the first linkage rotates and drives the blocking part to rotate, thereby causing the blocking part to push the cylinder body to slide, and the damper generates resistance to counteract the resetting of the torsion spring.

[0053] In the above-mentioned damping hinge, optionally, the blocking portion is connected to the groove of the front end outer wall of the cylinder body.

[0054] In the above damping hinge, optionally, the front end outer wall of the cylinder body includes at least the groove arranged along the outer edge thereof, and the groove arranged along the outer edge of the front end outer wall of the cylinder body is an abutment groove;

[0055] The front end of the cylinder body cooperates and abuts against the blocking portion through the abutting groove.

[0056] In the above-mentioned damping hinge, optionally, the front side surface of the blocking portion is higher than the front end surface of each of the protrusions.

[0057] In the above damping hinge, optionally, the blocking portion and the abutting groove abut against each other in surface contact or line contact.

[0058] In the above-mentioned damping hinge, optionally, the second link is connected to the bearing seat in a transmission manner. When the hinge cup rotates relative to the shell assembly to close, it can also drive the second link to rotate, thereby driving the bearing seat to slide, so that the bearing seat pushes the piston rod to slide.

[0059] The damping hinge may optionally further include:

[0060] A housing assembly is used to be mounted on a fixed wall, and a first rotating shaft is mounted on the front end of the housing assembly;

[0061] a hinge cup for mounting on the movable plate;

[0062] a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0063] a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly;

[0064] a torsion spring, which is sleeved on the outside of the first rotating shaft, and the two ends of the torsion spring are respectively connected to the housing component and the first linking member, or respectively connected to the housing component and the second linking member;

[0065] a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member, and the bearing seat being provided with an abutting portion;

[0066] In which, the damper is slidably arranged in the supporting seat, the rear end of the cylinder body is closer to the hinge cup than its front end, the rear end of the piston rod is connected to the first rotating shaft or the torsion spring, and the front end of the cylinder body is connected to the abutment portion; when the hinge cup rotates relative to the shell assembly to close the movable plate, the first linkage rotates and drives the supporting seat to slide, thereby causing the supporting seat to push the cylinder body, and the damper generates resistance to counteract the resetting of the torsion spring.

[0067] In the above damping hinge, optionally, the front end outer wall of the cylinder body includes at least the groove arranged along the outer edge thereof, and the groove arranged along the edge of the front end outer wall of the cylinder body is an abutment groove;

[0068] A clearance groove is provided on the abutting portion;

[0069] The front end of the cylinder body is located inside the abutting groove and passes through the clearance groove, and the abutting portion cooperates with and abuts against the abutting groove.

[0070] The damper and damping hinge of the present application are provided with grooves and protrusions on the front end outer wall of the cylinder body, so that the front end outer wall of the cylinder body has an uneven reinforcing rib structure. When the front end of the cylinder body is subjected to force, it is not easy to be deformed or damaged, which can greatly improve the service life of the damper.

[0071] Furthermore, the front end inner wall is set to an uneven shape consistent with the shape of its front end outer wall, so that a sub-chamber can be formed in the cylinder body. The sub-chamber is used to accommodate the elastic part of the damper, which can play a role in straightening the tube. At this time, the groove on the front end outer wall of the cylinder body is used to connect with other components so that when pushing and pulling with the cylinder body, the use space of the damper can be effectively saved without changing the stroke of the elastic part. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] The present application is further described in detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will appreciate that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. In addition, unless otherwise specified, the drawings are intended only to conceptually represent the composition or structure of the described objects and may contain exaggerated representations, and the drawings are not necessarily drawn to scale.

[0073] Figure 1 is a structural schematic diagram of an embodiment of the damper of the present application;

[0074] Figure 2 is a structural schematic diagram of an embodiment of the damper of the present application;

[0075] Figure 3 is a structural schematic diagram of an embodiment of the damper of the present application;

[0076] Figure 4 is a structural schematic diagram of an embodiment of the damper of the present application;

[0077] Figure 5 is a structural schematic diagram of an embodiment of the damper of the present application;

[0078] Figure 6 is a structural schematic diagram of an embodiment of the damper of the present application;

[0079] Figure 7 is a structural schematic diagram of an embodiment of the damper of the present application;

[0080] Figure 8 is a structural schematic diagram of an embodiment of the damper of the present application;

[0081] Figure 9 This is a structural diagram of a damping hinge in Example 2;

[0082] Figure 10 yes Figure 9 The damping hinge in the figure shows the structure from another perspective after the hinge cup is hidden;

[0083] Figure 11 yes Figure 9 Schematic cross-sectional view of the damping hinge in FIG;

[0084] Figure 12 yes Figure 8 Schematic diagram of the structure of the bearing seat of the middle damper;

[0085] Figure 13 yes Figure 12 A schematic diagram of the structure of the bearing seat in FIG. 1 observed from another perspective;

[0086] Figure 14 is a structural schematic diagram of a damping hinge in Example 3;

[0087] Figure 15 yes Figure 14 A schematic diagram of a connection between a damper and a barrier portion of a damping hinge;

[0088] Figure 16 yes Figure 14 A schematic diagram of the connection between another damper and the barrier portion of the damping hinge;

[0089] Figure 17 This is a structural diagram of a damping hinge in Example 4;

[0090] Figure 18 is a structural diagram of another damping hinge in the fourth embodiment;

[0091] Figure 19 This is a structural diagram of another damping hinge in the fourth embodiment;

[0092] Figure 20 This is a schematic structural diagram of a damping hinge in Example 5;

[0093] Figure 21 is a structural diagram of another damping hinge in the fifth embodiment;

[0094] Figure 22 is a structural schematic diagram of a damping hinge in Example 6;

[0095] Figure 23is a structural diagram of another damping hinge in Example 6;

[0096] Figure 24 yes Figure 23 Schematic diagram of the structure of the bearing seat of the damping hinge.

[0097] In the figure, 1, damper; 11, cylinder; a, front end outer wall of cylinder; b, front end inner wall of cylinder; 111, inner chamber; 1111, first chamber; 1112, second chamber; 112, sub-chamber; 113, protrusion; 114, groove; 1141, abutment groove; 12, piston; 121, sealing ring; 13, elastic member; 14, piston rod; 15, cylinder; 16, outer ring; 17, end cover; 171, sealing member;

[0098] 2. Housing assembly; 21. First rotating shaft; 22. Limit rod; 23. Third rotating shaft; 3. Hinge cup; 31. Second rotating shaft; 4. First linking member; 5. Second linking member; 51. Transmission tooth portion; 6. Torsion spring; 7. Support seat; 71. Accommodating cavity; 72. Abutting portion; 721. Giving groove; 73. Hook portion; 8. Blocking portion. DETAILED DESCRIPTION

[0099] The preferred embodiments of the present application will be described in detail below with reference to the accompanying drawings. Those skilled in the art will appreciate that these descriptions are merely illustrative and exemplary and should not be construed as limiting the scope of protection of the present application.

[0100] First, it should be noted that the directions such as top, bottom, upward, and downward mentioned in this document are defined relative to the directions in the respective drawings. They are relative concepts and can therefore vary depending on the position and usage conditions. Therefore, these or other directions should not be understood as limiting terms.

[0101] In addition, for the sake of convenience, in the damper, the end of the cylinder away from the piston rod is defined as the "front end", and the end corresponding to the "front end" is defined as the "rear end".

[0102] It should be noted that the term "comprising" does not exclude other elements or steps, and "a" or "an" does not exclude a plurality.

[0103] In addition, it should be pointed out that any single technical feature described or implied in the embodiments of this document, or any single technical feature shown or implied in the accompanying drawings, can still be combined between these technical features (or their equivalents) to obtain other embodiments of the present application that are not directly mentioned in this document.

[0104] It should also be understood that, while the terms "first," "second," and the like are used herein to describe various types of information, such information should not be limited to these terms; these terms are merely used to distinguish information of the same type from one another. For example, "first" information could also be referred to as "second" information, and similarly, "second" information could also be referred to as "first" information without departing from the scope of this application.

[0105] It should be noted that in different drawings, the same reference numerals denote the same or substantially the same components.

[0106] Example 1

[0107] This embodiment provides a damper 1, specifically as follows Figure 1-8 As shown, it includes a cylinder 11, a piston 12, an elastic member 13 and a piston rod 14. The interior of the cylinder 11 is provided with an inner chamber 111. The piston 12 is arranged in the inner chamber 111 and divides the inner chamber 111 into a first chamber 1111 and a second chamber 1112. The elastic member 13 is arranged in the first chamber 1111 and is connected to the front end of the piston 12 and the cylinder 11 respectively. The front end of the piston rod 14 is arranged in the second chamber 1112 and is connected to the piston 12. The rear end of the piston rod 14 passes through the rear end of the cylinder body 11 and is arranged outside the cylinder body 11; wherein, a protrusion 113 and a groove 114 are provided on the front end outer wall a of the cylinder body with the central axis of the cylinder body 11 as the center, and the front end outer wall a of the cylinder body is uneven as a whole; specifically, a circular protrusion 113 and / or an annular protrusion 113 is provided on the front end outer wall a of the cylinder body, and the areas staggered from each protrusion 113 on the front end outer wall a of the cylinder body are defined as grooves 114.

[0108] Specifically, in this embodiment, the bottom surface of each protrusion 113 and each groove 114 can be a flat surface or an arc surface.

[0109] exist Figures 1-4 In each specific embodiment, a circular protrusion 113 is provided on the front end outer wall a of the cylinder body with the central axis of the cylinder body 11 as the center. Correspondingly, an annular groove 114 is formed on the outer periphery of the circular protrusion 113 and along the front end edge of the cylinder body 11. Figures 1-4 In the various embodiments, the specific shapes of the bottom surfaces of the grooves 114 and the protrusions 113 are different.

[0110] In the attached Figure 5 and Figure 7 In the specific embodiment shown, an annular protrusion 113 is provided on the front end outer wall a of the cylinder body with the central axis of the cylinder body 11 as the center, and a circular groove 114 is formed in the middle position of the annular protrusion 113 on the front end outer wall a of the cylinder body, and Figure 7 In the damper 1 , an annular groove 114 is further defined along the outer edge of the annular protrusion 113 .

[0111] In the attached Figure 8 In the specific embodiment shown in , two annular protrusions 113 are provided on the front end outer wall a of the cylinder body, and the middle area of the inner annular protrusion 113 on the front end outer wall a of the cylinder body is defined by a circular groove 114, and the area between the two annular protrusions 113 on the front end outer wall a of the cylinder body is defined by an annular groove 114.

[0112] At this time, for example, in order to further enhance the strength of the cylinder body 11, the overall size of the front end of the cylinder body 11 is increased, such as Figure 6 and Figure 8 As shown, the front end of the cylinder body 11 can be set to a truncated cone shape with an outer diameter gradually increasing from the back to the front.

[0113] Based on the above technical solution, the front end outer wall a of the cylinder body includes a protrusion 113 and a groove 114, thereby forming an uneven reinforcing rib structure on the front end outer wall a of the cylinder body, so that when the front end of the cylinder body 11 is subjected to force, it is not easy to be deformed or damaged, which can greatly improve the service life of the damper 1.

[0114] Preferably, the front end outer wall a of the cylinder body includes at least an annular groove 114 arranged along its outer edge, and the groove 114 is defined as an abutment groove 1141; during the application of the above-mentioned damper 1, the front end outer wall a of the cylinder body is usually abutted against other components to generate a damping force. Since the abutment groove 1141 is provided on the front end outer wall a of the cylinder body, the axial space where the abutment groove 1141 is located can be saved by abutting with the abutment groove 1141, thereby saving the use space of the damper 1.

[0115] In this embodiment, the cylinder body 11 may be integrally formed to form a protrusion 113 and a groove 114 on the outer wall of the front end of the cylinder body 11 , so that the front end of the cylinder body 11 is formed into an uneven shape.

[0116] As an alternative, the cylinder body 11 may also be provided with a split assembly structure. Figure 4 As shown: the cylinder body 11 includes a barrel 15 and an outer ring body 16, the inner chamber 111 is confined in the barrel 15, and the outer ring body 16 is sleeved on the outer circumference of the barrel 15; wherein, the front end outer wall of the barrel 15 and the front end outer wall of the outer ring body 16 are jointly defined as the front end outer wall a of the cylinder body, and the front end of the outer ring body 16 is lower than the front end of the barrel 15, so that the front end of the barrel 15 bulges forward and outward to form a protrusion 113, and the front end outer wall of the outer ring body 16 and the front end of the barrel 15 are defined as an abutment groove 1141.

[0117] In addition, please refer to the attached Figures 1-8As shown, the front end inner wall b of the cylinder body is uneven in shape, which is consistent with the front end outer wall a of the cylinder body, so that the front end of the first chamber 1111 is concave relative to the area of the protrusion 113 to form a sub-chamber 112; the front end of the elastic member 13 is arranged in the sub-chamber 112, and the sub-chamber 112 can play a straightening role on the elastic member 13, thereby preventing the elastic member 13 from deflecting and shifting during compression or stretching, and can reduce the noise of the damper 1 when working, and avoid collision and friction between the elastic member 13 and the inner wall of the cylinder body 11, which can effectively improve the service life of the damper 1; and at the same time, when the groove 114 on the cylinder body 11 is connected to other components to push and pull with the cylinder body 11, the use space of the damper 1 can be effectively saved without changing the stroke of the damper 1.

[0118] Specifically, in this embodiment, the elastic member 13 may be a tension spring or a compression spring. When the elastic member 13 is a tension spring, it pulls the piston 12 . When the elastic member 13 is a compression spring, it compresses the piston 12 .

[0119] In this embodiment, in order to further protect the front end of the cylinder body 11, a gasket is provided at the front end surface of the first chamber 1111 and / or the front end surface of the sub-chamber 112, which can also play a role in sound absorption.

[0120] More specifically, the damper 1 further comprises an end cover 17, which is mounted at the rear end of the second chamber 1112, through which the piston rod 14 extends to the outside of the cylinder body 11, and a seal 171 is provided on the end cover 17 for sealing the oil in the cylinder body 11; in addition, a sealing ring 121 is provided on the piston 12.

[0121] Example 2

[0122] This embodiment provides a damping hinge. Figure 9-13 As shown, it includes the damper 1 as in any one of the first embodiment; since it includes the damper 1 as in the first embodiment, the damping hinge in this embodiment has all the beneficial effects of the above-mentioned damper 1, which will not be described in detail here.

[0123] More specifically, the damping hinge further comprises: a housing assembly 2, a hinge cup 3, a first link 4, a second link 5, a torsion spring 6 and a bearing seat 7; the housing assembly 2 is used to be mounted on a fixed wall, a first rotating shaft 21 is mounted on the housing assembly 2, the hinge cup 3 is used to be mounted on a movable plate, one end of the first link 4 is rotatably connected to the hinge cup 3, the other end of the first link 4 is rotatably connected to the housing assembly 2, one end of the second link 5 is rotatably connected to the hinge cup 3, the other end of the second link 5 is rotatably connected to the housing assembly 2, the torsion spring 6 is sleeved on the outside of the first rotating shaft 21, and the two ends of the torsion spring 6 are respectively connected to the housing assembly 2 and the first link 4 , for pre-tensioning the first link 4, or, the two ends of the torsion spring 6 are respectively connected to the housing assembly 2 and the second link 5, for pre-tensioning the second link 5, the bearing seat 7 is disposed within the housing assembly 2, and the bearing seat 7 is transmission-connected to the second link 5; wherein, the damper 1 is disposed within the housing assembly 2, the front end of the cylinder 11 is closer to the hinge cup 3 than the rear end thereof, and the front end of the cylinder 11 is connected to the first rotating shaft 21 or the torsion spring 6; when the hinge cup 3 rotates relative to the housing assembly 2 to close the movable panel, the second link 5 rotates and drives the bearing seat 7 to slide, thereby causing the bearing seat 7 to push the piston rod 14, and the damper 1 generates resistance to resist the return of the torsion spring 6. In the damping hinge of this embodiment, during the process of closing the movable panel, the front end outer wall a of the cylinder is connected to the first rotating shaft 21 or the torsion spring 6, and because the front end outer wall a of the cylinder is provided with an uneven reinforcement rib structure, the strength of the cylinder 11 is improved and the wear of the cylinder 11 is reduced.

[0124] Specifically, if Figure 12 、 Figure 13 and Figure 14 As shown, the bearing seat 7 is slidably arranged in the shell component 2, and a limiting rod 22 is installed on the shell component 2. The bearing seat 7 cooperates with and abuts against the limiting rod 22 to prevent the bearing seat 7 from separating from and sliding off the shell component 2. A accommodating cavity 71 is provided in the bearing seat 7, and the damper 1 is slidably arranged in the accommodating cavity 71.

[0125] In addition, if Figure 11 As shown, an abutment portion 72 is provided at the rear end of the bearing seat 7 , and the abutment portion 72 cooperates with and abuts against the piston rod 14 , so that when the bearing seat 7 slides, it can push the piston rod 14 to slide.

[0126] Specifically, a hook portion 73 is provided on both sides of the bearing seat 7, and a transmission tooth portion 51 is provided on both sides of the second linking member 5. The transmission tooth portion 51 is transmission-connected to the hook portion 73. For details, please refer to the attached Figure 10 As shown, when the second transmission member rotates, it can drive the bearing seat 7 to slide in the housing assembly 2.

[0127] In addition, it should be noted that the damping hinge in this embodiment also includes a second rotating shaft 31 and a third rotating shaft 23. The second rotating shaft 31 is mounted on the hinge cup 3, and the third rotating shaft 31 is mounted on the housing assembly 2. Specifically, the second rotating shaft 31 has two rotating arms, one end of the first linking member 4 is connected to one rotating arm of the second rotating shaft 31, the other end of the first linking member 4 is connected to the first rotating shaft 21, one end of the second linking member 5 is connected to the other rotating arm of the second rotating shaft 31, and the other end of the second linking member 5 is connected to the third rotating shaft 23. Figure 9 and Figure 10 shown.

[0128] Exemplarily, the specific installation method of the torsion spring is: one end of the torsion spring 6 abuts against the second rotating shaft 31, and the other end of the torsion spring 6 abuts against the third rotating shaft 31 or the housing assembly 2; but it should be noted that the connection method of the two ends of the torsion spring 6 is not limited to abutment, and fixed connection or other connection forms can also be adopted.

[0129] Example 3

[0130] like Figure 14-16 As shown, this embodiment provides a damping hinge, which differs from the damping hinge of the second embodiment only in that a blocking portion 8 is provided within the groove 114 of the cylinder body 11, and the front end of the cylinder body 11 is connected to the first rotating shaft 21 or the torsion spring 6 via the front end surface of the blocking portion 8. The provision of the blocking portion 8 at the front end of the cylinder body 11 can further improve the strength of the cylinder body 11 and prevent direct abutment of the cylinder body 11, thereby further improving the service life of the damper 1.

[0131] More preferably, in this embodiment, the front end surface of the blocking portion 8 is higher than the front end surfaces of the circular protrusions 113 and the annular protrusion 113, and the front end surface of the blocking portion 8 cooperates and abuts against the first rotating shaft 21 or the torsion spring 6. Since the front end of the cylinder body 11 abuts against the first rotating shaft 21 or the torsion spring 6 through the blocking portion 8, direct interaction between the cylinder body 11 and the first rotating shaft 21 or the torsion spring 6 can be avoided, thereby further improving the service life of the cylinder body 11.

[0132] Example 4

[0133] This embodiment provides a damping hinge, which differs from the third embodiment in that the barrier portion 8 is provided on the housing assembly 2, and the barrier portion 8 is connected to the rear end of the cylinder 11. Figure 17-Figure 19 As shown; the service life of the damping hinge in this embodiment can also be effectively improved.

[0134] Preferably, the blocking portion 8 is connected to the groove 114 on the front end outer wall a of the cylinder body, so that the damper 1 can be offset to the left as a whole by the axial length of the abutment groove 1141 without changing the stroke of the damper 1, which can effectively save the use space of the damper 1.

[0135] In this embodiment, in order to facilitate the reasonable arrangement of various components, preferably, the front end outer wall a of the cylinder body includes at least an annular groove 114 arranged along its outer edge, and the groove 114 is defined as an abutment groove 1141, and the front end of the cylinder body 11 is connected to the blocking portion 8 through the abutment groove 1141.

[0136] In addition, in order to further improve the service life of the damper 1 and reduce the friction on the rear end of the cylinder body 11, the front side surface of the blocking part 8 is higher than the front end surface of each circular protrusion 113 and the annular protrusion 113, and the front side surface of the blocking part 8 cooperates with the abutment groove 1141 to abut.

[0137] In this embodiment, the blocking portion 8 and the abutting groove 1141 are in surface contact or line contact; Figure 17 As shown, the barrier portion 8 is a round rod portion installed on both sides of the housing assembly 2, and the round rod portion abuts against the abutment groove 1141 respectively to form a line contact abutment; Figure 18 and Figure 19 As shown, the blocking portion 8 is a sheet-like structure formed at the left end of the housing assembly 2 . The sheet-like structure is sleeved on the rear end of the cylinder body 11 and abuts against the abutment groove 1141 to form surface contact.

[0138] Example 5

[0139] like Figure 20 and Figure 21 As shown, this embodiment provides another damping hinge, which differs from the third embodiment in that the blocking portion 8 is provided on the first linking member 4 in this embodiment.

[0140] In this embodiment, the blocking portion 8 and the abutting groove 1141 can be abutted against each other by line contact, as shown in FIG. Figure 20 As shown, the blocking portion 8 and the abutting groove 1141 can also be abutted against each other by surface contact, as shown in FIG. Figure 21 shown.

[0141] In addition, it can be understood that the transmission connection between the second linkage 5 and the bearing seat 7 in this embodiment can also be omitted; in this case, the bearing seat 7 can be replaced by fixedly connecting it to the outer shell assembly 2, or a limiting structure for limiting the movement of the piston rod 14 to the right is provided at the right end of the outer shell assembly 2. This specific implementation method is not specifically described in the accompanying drawings.

[0142] Example 6

[0143] Specific as Figure 22-24As shown, the difference between the damping hinge of this embodiment and the above embodiments is that the setting direction of the damper 1 is different. The damper 1 in this embodiment is arranged in the mounting shell, and the front end of the cylinder body 11 is farther away from the hinge cup 3 than its rear end; correspondingly, the rear end of the supporting seat 7 is provided with an abutment portion 72, the front end of the cylinder body 11 is connected to the abutment portion 72, and the rear end of the piston rod 14 is connected to the first rotating shaft 21 or the torsion spring 6.

[0144] Furthermore, if Figure 23 and Figure 24 As shown, a clearance groove 721 is provided on the abutting portion 72, and the front end of the cylinder body 11 located inside the abutting groove 1141 passes through the clearance groove 721, and the abutting portion 72 and the abutting groove 1141 cooperate and abut; and the opening position of the clearance groove 721 can be opened in the middle area of the abutting portion 72 or pass through the bottom of the abutting portion 72, wherein the attached Figure 24 The specific embodiment is shown in which the clearance groove 721 is opened through the bottom of the abutting portion 72 .

[0145] In this embodiment, the specific connection method between the piston rod 14 and the first rotating shaft 21 or the torsion spring 6 is not specifically limited. It can be a fixed connection formed by clamping, welding, etc., or an abutment connection.

[0146] In summary, the damper 1 and the damping hinge including the same according to the embodiment of the present invention are provided with grooves and protrusions on the front end outer wall of the cylinder body, so that the front end outer wall of the cylinder body has an uneven reinforcing rib structure. When the front end of the cylinder body is subjected to force, it is not easy to be deformed or damaged, which can greatly improve the service life of the damper 1.

[0147] Furthermore, the front end inner wall is set to an uneven shape consistent with the shape of its front end outer wall, so that a sub-chamber can be formed in the cylinder body. The sub-chamber is used to accommodate the elastic part of the damper 1, which can play a role in tube straightening. At this time, the groove on the front end outer wall of the cylinder body is connected to other components so that when the cylinder body is pushed and pulled, the use space of the damper 1 can be effectively saved without changing the stroke of the elastic part.

[0148] This specification discloses the present application with reference to the accompanying drawings and also enables those skilled in the art to practice the present application, including making and using any device or system, employing suitable materials, and using any combined methods. The scope of the present application is defined by the claimed technical solution and includes other examples that occur to those skilled in the art. As long as such other examples include structural elements that are not different from the literal language of the claimed technical solution, or such other examples include equivalent structural elements that are not substantially different from the literal language of the claimed technical solution, such other examples should be deemed to be within the scope of protection determined by the claimed technical solution.

Claims

1. A damper, characterized in that: include: a cylinder body, wherein an inner chamber is provided; a piston disposed in the inner chamber and dividing the inner chamber into a first chamber and a second chamber; an elastic member disposed in the first chamber, the elastic member being connected to the front ends of the piston and the cylinder respectively, and the elastic member being a compression spring or a tension spring; and a piston rod, a front end of which is disposed in the second chamber and connected to the piston, and a rear end of which passes through the rear end of the cylinder body and is disposed outside the cylinder body; The front end outer wall of the cylinder body is provided with a protrusion and a groove centered on the central axis of the cylinder body. The front end outer wall of the cylinder body is uneven as a whole, and the front end outer wall of the cylinder body at least includes the groove arranged along its outer edge.

2. The damper according to claim 1, characterized in that The cylinder body comprises: a barrel, wherein the inner chamber is defined within the barrel; and an outer ring body, which is sleeved on the outer circumference of the cylinder; The front end outer wall of the cylinder and the front end outer wall of the outer ring body are jointly defined as the front end outer wall of the cylinder, and the front end of the outer ring body is lower than the front end of the cylinder, so that the front end outer wall of the cylinder is defined as the groove along its outer edge.

3. The damper according to any one of claims 1 to 2, characterized in that: The front inner wall of the cylinder body is in a concave-convex shape consistent with the shape of the front outer wall of the cylinder body, so that the front end of the first chamber is concave relative to the raised part to form a sub-chamber; The front end portion of the elastic member is disposed in the sub-chamber.

4. The damper according to claim 3, characterized in that A gasket is provided on the front end surface of the first chamber and / or the front end surface of the sub-chamber.

5. A damping hinge, characterized in that: include: The damper according to any one of claims 1 to 4.

6. The damping hinge according to claim 5, characterized in that: Also includes: A housing assembly, which is used to be mounted on a fixed wall, wherein a first rotating shaft is mounted on the housing assembly; a hinge cup for mounting on the movable plate; a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a torsion spring, which is sleeved on the outside of the first rotating shaft, with two ends of the torsion spring respectively connected to the housing component and the first linking member, or respectively connected to the housing component and the second linking member; and a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member; In which, the damper is arranged in the shell assembly, the front end of the cylinder body is closer to the hinge cup than the rear end thereof, and the front end of the cylinder body is connected to the first rotating shaft or the torsion spring; when the hinge cup rotates relative to the shell assembly to close the movable plate, the second linkage rotates and drives the bearing seat to slide, thereby causing the bearing seat to push the piston rod, and the damper generates resistance to counteract the resetting of the torsion spring.

7. The damping hinge according to claim 6, characterized in that: A blocking portion is provided in the groove, and the front end of the cylinder body is connected to the first rotating shaft or the torsion spring through the blocking portion.

8. The damping hinge according to claim 7, characterized in that: The front end surface of the blocking portion is higher than the front end surface of each of the protrusions, and the front end surface of the blocking portion is in contact with the first rotating shaft or the torsion spring.

9. The damping hinge according to claim 5, characterized in that: Also includes: A housing assembly, which is used to be installed on a fixed wall, and the housing assembly is provided with a blocking portion; a hinge cup for mounting on the movable plate; a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a torsion spring, two ends of which are respectively connected to the housing assembly and the first linking member, or respectively connected to the housing assembly and the second linking member; a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member; In which, the damper is slidably arranged in the supporting seat, and the front end of the cylinder body is closer to the hinge cup than its rear end, and the front end of the cylinder body is connected to the blocking part; when the hinge cup rotates relative to the shell assembly to close the movable plate, the second linkage rotates and drives the supporting seat to slide, thereby causing the supporting seat to push the piston rod, and the damper generates resistance to counteract the restoration of the torsion spring.

10. The damping hinge according to claim 9, characterized in that: The blocking portion is connected to a groove on the front end exterior of the cylinder body.

11. The damping hinge according to claim 10, characterized in that: The front end outer wall of the cylinder body at least includes the groove arranged along the outer edge thereof, and the groove arranged along the edge of the front end outer wall of the cylinder body is an abutment groove; The front end of the cylinder body cooperates and abuts against the blocking portion through the abutting groove.

12. The damping hinge according to claim 11, characterized in that: The front side surface of the blocking portion is higher than the front end surface of each of the protrusions.

13. The damping hinge according to claim 12, characterized in that: The blocking portion and the abutting groove abut against each other in surface contact or line contact.

14. The damping hinge according to claim 5, characterized in that: Also includes: a housing assembly for mounting on a fixed wall; a hinge cup, which is used to mount the movable panel; a first linking member, one end of which is rotatably connected to the hinge cup, the other end of which is rotatably connected to the housing assembly, and a blocking portion being provided on the first linking member; a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a torsion spring, two ends of which are respectively connected to the housing assembly and the first linking member, or respectively connected to the housing assembly and the second linking member; a bearing seat, which is arranged in the housing assembly; In which, the damper is arranged in the shell assembly, and the front end of the cylinder body is closer to the hinge cup than its rear end, the blocking part is connected to the front end of the cylinder body, and the bearing seat is in abutment with the rear end of the piston rod; when the hinge cup rotates relative to the shell assembly to close the movable plate, the first linkage rotates and drives the blocking part to rotate, thereby causing the blocking part to push the cylinder body to slide, and the damper generates resistance to counteract the resetting of the torsion spring.

15. The damping hinge according to claim 14, characterized in that: The blocking portion is connected to the groove of the front end outer wall of the cylinder body.

16. The damping hinge according to claim 15, characterized in that: The front end outer wall of the cylinder body at least includes the groove arranged along the outer edge thereof, and the groove arranged along the outer edge of the front end outer wall of the cylinder body is an abutment groove; The front end of the cylinder body cooperates and abuts against the blocking portion through the abutting groove.

17. The damping hinge according to claim 16, characterized in that: The front side surface of the blocking portion is higher than the front end surface of each of the protrusions.

18. The damping hinge according to claim 16, characterized in that: The blocking portion and the abutting groove abut against each other in surface contact or line contact.

19. The damping hinge according to any one of claims 14 to 18, characterized in that: The second link is transmission-connected to the bearing seat. When the hinge cup rotates relative to the housing assembly to close, it can also drive the second link to rotate, thereby driving the bearing seat to slide, so that the bearing seat pushes the piston rod to slide.

20. The damping hinge according to claim 5, characterized in that: Also includes: A housing assembly is used to be mounted on a fixed wall, and a first rotating shaft is mounted on the front end of the housing assembly; a hinge cup for mounting on the movable plate; a first linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a second linking member, one end of which is rotatably connected to the hinge cup, and the other end of which is rotatably connected to the housing assembly; a torsion spring, which is sleeved on the outside of the first rotating shaft, and the two ends of the torsion spring are respectively connected to the housing component and the first linking member, or respectively connected to the housing component and the second linking member; a bearing seat disposed in the housing assembly, the bearing seat being transmission-connected to the second linkage member, and the bearing seat being provided with an abutting portion; In which, the damper is slidably arranged in the supporting seat, the rear end of the cylinder body is closer to the hinge cup than its front end, the rear end of the piston rod is connected to the first rotating shaft or the torsion spring, and the front end of the cylinder body is connected to the abutment portion; when the hinge cup rotates relative to the shell assembly to close the movable plate, the first linkage rotates and drives the supporting seat to slide, thereby causing the supporting seat to push the cylinder body, and the damper generates resistance to counteract the resetting of the torsion spring.

21. The damping hinge according to claim 20, characterized in that: The front end outer wall of the cylinder body at least includes the groove arranged along the outer edge thereof, and the groove arranged along the edge of the front end outer wall of the cylinder body is an abutment groove; A clearance groove is provided on the abutting portion; The front end of the cylinder body is located inside the abutting groove and passes through the clearance groove, and the abutting portion cooperates with and abuts against the abutting groove.

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