A damper tension adjustment mechanism and hinge

Abstract

This utility model belongs to the field of hinge technology, specifically disclosing a damper tension adjustment mechanism and hinge, including a slide, a hydraulic damper, and a spring. The slide has a first receiving groove, and both the hydraulic damper and the spring are placed in the first receiving groove. One end of the spring abuts against the cylinder of the hydraulic damper, and the piston rod of the hydraulic damper passes through the groove wall at one end of the first receiving groove. The tension adjustment mechanism also includes an adjusting member and a pushing member disposed at one end of the adjusting member. The other end of the spring abuts against the pushing member. The adjusting member passes through the groove wall at the other end of the first receiving groove and is screwed to the groove wall of the first receiving groove. The other end of the adjusting member is provided with a driving part for driving the adjusting member to rotate, thereby changing the damping magnitude of the hydraulic damper, that is, adjusting the tension of the damper.

Description

Technical Field

[0001] This utility model relates to the field of hinge technology, and in particular to a damper tension adjustment mechanism and hinge. Background Technology

[0002] Hinges are commonly used to connect the cabinet body and the door of wardrobes or cabinets, enabling the doors to open and close.

[0003] A utility model patent with publication number CN219864588U discloses a hinge structure with bidirectional buffering. Based on the disclosed content and accompanying drawings, the patent features a swing positioning part that movably connects a first hinge unit and a second hinge unit, allowing them to swing within a certain range to open and close the cabinet door. The damping component consists of a hydraulic damper and a spring connected in series. This design is simple and compact, facilitating installation and simplifying the installation process of the hydraulic damper and spring. It also reduces the installation dimensions of the damper in the width direction, enabling a more compact hinge design. The hydraulic damper and spring are connected in series, with the spring's elastic force direction completely coinciding with the piston rod's damping force direction. The spring's elastic force has no component in other directions, and its elastic deformation is the same as the piston rod's movement, facilitating the design of spring compression and elastic force. This results in a long spring lifespan, increasing the overall hinge lifespan. The spring is fitted onto the connecting shaft to prevent bending deformation, improving stability.

[0004] In the aforementioned patent, the hydraulic damper can achieve a bidirectional buffering effect. However, in some application scenarios, a large damping is required, i.e., a tighter damping, while in other application scenarios, a small damping is required, i.e., a looser damping. The solution in the aforementioned patent cannot adjust the tightness of the damper. Utility Model Content

[0005] In order to overcome the defects of the existing technology, this utility model provides a damper tension adjustment mechanism and hinge, which solves the technical problem that the existing technology cannot adjust the tension of the damper.

[0006] The technical solution adopted by this utility model to solve its technical problem is: a damper tension adjustment mechanism, including a slide, a hydraulic damper and a spring. The slide has a first receiving groove. The hydraulic damper and the spring are both placed in the first receiving groove. One end of the spring abuts against the cylinder of the hydraulic damper, and the piston rod of the hydraulic damper passes through the groove wall at one end of the first receiving groove. The tension adjustment mechanism also includes an adjusting member and a pushing member disposed at one end of the adjusting member. The other end of the spring abuts against the pushing member. The adjusting member passes through the groove wall at the other end of the first receiving groove and is screwed to the groove wall of the first receiving groove. The other end of the adjusting member is provided with a driving part for driving the adjusting member to rotate.

[0007] As a further embodiment, a positioning part is fixed on the pushing member, the positioning part being away from the adjusting member, and the other end of the spring is sleeved on the positioning part.

[0008] As a further embodiment, the pusher has a positioning groove, and one end of the adjusting member is placed in the positioning groove.

[0009] As a further embodiment, a guide structure is provided between the two side walls of the cylinder of the hydraulic damper and the two side walls of the first receiving groove, so that the hydraulic damper can be slidably placed in the first receiving groove.

[0010] As a further embodiment, the guide structure includes a plurality of first guide blocks fixed on the two side walls of the cylinder, and a plurality of second guide blocks and a plurality of third guide blocks respectively fixed on the two side walls of the first receiving groove, wherein the first guide blocks are located between the second guide blocks and the third guide blocks.

[0011] As a further embodiment, a fourth guide block is fixed on both sides of the first receiving groove, and the first guide block can be placed on the fourth guide block and slid to a position between the second guide block and the third guide block.

[0012] As a further embodiment, the tension adjustment mechanism also includes a base, the base having a second receiving groove, the slide being placed in the second receiving groove, and the piston rod of the hydraulic damper passing through the groove wall at one end of the first receiving groove and the groove wall at one end of the second receiving groove in sequence.

[0013] The bottom of the second receiving groove is provided with a limiting groove, and the cylinder of the hydraulic damper is slidably placed in the limiting groove.

[0014] As a further embodiment, a through hole is provided on the wall of the second receiving groove, and the driving part of the adjusting member passes through the through hole.

[0015] As a further embodiment, the slide block is fixed on both side walls, and the second receiving groove is provided with two slots with one end open. The slot block is inserted into the slot through the opening and moves in cooperation with the slot.

[0016] This utility model also provides a hinge, including the aforementioned damper tension adjustment mechanism, further comprising a hinge arm, a hinge cup, an adapter, a first connector, and a second connector. The hinge arm is located above the hydraulic damper, one end of the hinge arm is rotatably connected to a slide block, and the other end of the hinge arm is rotatably connected to one end of the first connector and one end of the second connector, respectively. The other ends of the first connector and the second connector are rotatably connected to the hinge cup, respectively. The first connector has a locking position, and one end of the second connector is locked in the locking position. One end of the adapter is rotatably connected to one end of the second connector, and the other end of the adapter is rotatably connected to the piston rod of the hydraulic damper.

[0017] The beneficial effects of this utility model are: the driving part drives the adjusting member to rotate, and since the adjusting member is screwed to the wall of the first receiving groove, the distance between the pushing member and the wall of the first receiving groove can be changed, thereby driving the pushing member to act on the spring, adjusting the deformation of the spring, further adjusting the force acting on the hydraulic damper, thereby changing the damping magnitude of the hydraulic damper, that is, adjusting the tightness of the damper. Attached Figure Description

[0018] Figure 1 This is a perspective view of Embodiment 1 of the present utility model;

[0019] Figure 2 This is a perspective view of Embodiment 2 of the present invention;

[0020] Figure 3 This is a perspective view of Embodiment 2 of the present invention (some parts are missing);

[0021] Figure 4 This is a cross-sectional schematic diagram of Embodiment 2 of the present invention;

[0022] Figure 5 This is an exploded view of Embodiment 2 of this utility model;

[0023] Figure 6 for Figure 5 Enlarged view of point A in the middle;

[0024] Figure 7 This is a schematic diagram illustrating the application of Embodiment 2 of this utility model.

[0025] In the diagram, 1-slide block, 11-first receiving groove, 12-block, 2-hydraulic damper, 21-cylinder, 22-piston rod, 3-spring, 4-adjusting component, 41-drive unit, 5-push component, 51-positioning unit, 52-positioning groove, 6-guide structure, 61-first guide block, 62-second guide block, 63-third guide block, 64-fourth guide block, 7-base, 71-second receiving groove, 72-limiting groove, 73-through hole, 74-slot, 8-hinge arm, 9-hinge cup, 10-adapter, 101-first connector, 102-second connector, 103-slot, a-cabinet body, b-door body. Detailed Implementation

[0026] The specific embodiments of this utility model will be further described below with reference to the accompanying drawings. It should be noted that these descriptions are for the purpose of aiding understanding of this utility model, but do not constitute a limitation thereof. Furthermore, the technical features involved in the various embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] It should be noted that, as shown in the attached document... Figure 7 As shown in the following description, the up-down direction is perpendicular to the horizontal plane and perpendicular to the length direction of the hinge arm 8; the left-right direction is parallel to the horizontal plane and perpendicular to the length direction of the hinge arm 8; the front-back direction is parallel to the horizontal plane and also parallel to the length direction of the hinge arm 8.

[0028] Example 1

[0029] As attached Figure 1-5 As shown, this embodiment provides a damper tension adjustment mechanism, including a slide 1, a hydraulic damper 2, and a spring 3. The slide 1 has a first receiving groove 11, and both the hydraulic damper 2 and the spring 3 are placed in the first receiving groove 11. One end of the spring 3 abuts against the cylinder 21 of the hydraulic damper 2, and the piston rod 22 of the hydraulic damper 2 passes through the groove wall at one end of the first receiving groove 11, and can then be connected to the hinge cup 9 of the hinge for transmission. The tension adjustment mechanism also includes an adjusting member 4 and a pushing member 5 disposed at one end of the adjusting member 4.

[0030] For details, see attached. Figure 4-5 As shown, the adjusting member 4 and the pushing member 5 can be connected, such as by screwing; or they can be in contact, as long as there is an interaction force between the adjusting member 4 and the pushing member 5. As an improvement, a positioning groove 52 can be provided in the pushing member 5, and one end of the adjusting member 4 can be placed in the positioning groove 52 to ensure that when the adjusting member 4 and the pushing member 5 interact, one end of the adjusting member 4 always abuts against the pushing member 5, thus maintaining the stability of the force.

[0031] Among them, as attached Figure 4-5As shown, the pushing member 5 can be plate-shaped or spherical. When the other end of the spring 3 abuts against the pushing member 5, it is sufficient that the pushing member 5 can push the spring 3 under the action of the adjusting member 4. The adjusting member 4 is rod-shaped and has threads on its side wall, which can be screwed into the groove wall of the first receiving groove 11.

[0032] As attached Figure 1 , 4 As shown in Figure 6, the adjusting member 4 passes through the groove wall at the other end of the first receiving groove 11 and is screwed to the groove wall of the first receiving groove 11. The other end of the adjusting member 4 is provided with a driving part 41 for driving the adjusting member 4 to rotate. Specifically, the driving part 41 can be a polygonal protrusion, such as a hexagonal protrusion, which cooperates with a wrench; or a countersunk hole, such as a slotted head, Phillips head, or internal hexagonal slot, which cooperates with a screwdriver. The driving part 41 is activated by applying a wrench or screwdriver, thereby driving the adjusting member 4 to rotate.

[0033] In this embodiment, the hydraulic damper 2 is paired with the spring 3 to achieve a bidirectional (when door b is closed and when door b is fully open) buffering effect. Simultaneously, the adjusting member 4 is driven to rotate by the driving unit 41. Since the adjusting member 4 is screwed to the wall of the first receiving groove 11, the distance between the pushing member 5 and the wall of the first receiving groove 11 can be changed. This drives the pushing member 5 to act on the spring 3, adjusting the deformation of the spring 3, further adjusting the force acting on the hydraulic damper 2, thereby changing the damping magnitude of the hydraulic damper 2, that is, adjusting the tightness of the damper.

[0034] In some embodiments, as shown in the appendix Figure 5-6 As shown, a positioning part 51 is fixed on the pushing member 5, away from the adjusting member 4, and the other end of the spring 3 is sleeved on the positioning part 51. The pushing member 5 and the positioning part 51 can be welded, integrally formed, or screwed together, as long as the pushing member 5 and the positioning part 51 are connected and fixed. By sleeved on the positioning part 51, the other end of the spring 3 can be used to position the spring 3 when it interacts with the pushing member 5, preventing the spring 3 from detaching from the pushing member 5. At the same time, the positioning part 51 is rod-shaped, and the axial direction of the positioning part 51 is consistent with the axial direction of the spring 3, so that the spring 3 maintains the axial force and avoids bending deformation that would disperse the force. The force of the spring 3 can be applied to the hydraulic damper 2 as much as possible.

[0035] In some embodiments, as shown in the appendix Figure 5As shown, a guide structure 6 is provided between the two side walls of the cylinder 21 of the hydraulic damper 2 and the two side walls of the first receiving groove 11. This guide structure 6 allows the hydraulic damper 2 to be slidably placed within the first receiving groove 11, thereby ensuring that the force on the hydraulic damper 2 is maintained in the same direction and is stable. Specifically, in one embodiment, the guide structure 6 includes several first guide blocks 61 fixed to the two side walls of the cylinder 21, and several second guide blocks 62 and several third guide blocks 63 respectively fixed to the two side walls of the first receiving groove 11. The first guide blocks 61 are located between the second guide blocks 62 and the third guide blocks 63. The first guide blocks 61 can be welded to or integrally formed with the two side walls of the cylinder 21, and the second guide blocks 62 and the third guide blocks 63 can be welded to or integrally formed with the two side walls of the first receiving groove 11. Because the first guide blocks 61 are located between the second guide blocks 62 and the third guide blocks 63, the hydraulic damper 2 maintains linear sliding after being subjected to force. Of course, the guide structure 6 can also adopt the structure of guide block and guide groove, as long as it can make the hydraulic damper 2 maintain linear sliding after being subjected to force.

[0036] As an improvement to the above embodiments, see the appendix. Figure 5 As shown, a fourth guide block 64 is fixed on both sides of the first receiving groove 11. The first guide block 61 can be placed on the fourth guide block 64 and slid to the position between the second guide block 62 and the third guide block 63, thereby facilitating the installation of the hydraulic damper 2.

[0037] Additionally, as attached Figure 5 As shown, the tension adjustment mechanism also includes a base 7, which has a second receiving groove 71. The slide 1 is placed in the second receiving groove 71, and the piston rod 22 of the hydraulic damper 2 passes through the groove wall at one end of the first receiving groove 11 and the groove wall at one end of the second receiving groove 71 in sequence. The base 7 is used to install and fix it on the inner wall of the cabinet a, serving as the mounting base 7 for the slide 1. A cover can also be used to cover the slide 1 to prevent it from falling off. Furthermore, a limiting groove 72 is provided at the bottom of the second receiving groove 71, and the cylinder 21 of the hydraulic damper 2 is slidably placed within the limiting groove 72. The limiting groove 72 limits the cylinder 21 of the hydraulic damper 2, thus preventing excessive tension in the hydraulic damper 2 due to over-adjustment when adjusting the deformation of the spring 3.

[0038] Additionally, as attached Figure 5 As shown, a through hole 73 is provided on the wall of the second receiving groove 71. The driving part 41 of the adjusting member 4 passes through the through hole 73, which makes it convenient to adjust the driving part 41 with a tool (such as a screwdriver or wrench) without disassembling the base 7.

[0039] Meanwhile, as attached Figure 3 , 5As shown in Figure 7, there are locking blocks 12 fixed on the two side walls of the slide 1. The second receiving groove 71 is provided with two slots 74 with one end open. The locking blocks 12 are inserted into the slots 74 through the opening and are movablely engaged with the slots 74, thereby preventing the slide 1 from detaching from the base 7 in the left and right direction; while in the front and back direction, the slide 1 and the base 7 can be offset relative to each other.

[0040] Example 2

[0041] As attached Figure 2-5 As shown, this embodiment provides a hinge including the aforementioned damper tension adjustment mechanism, and also includes a hinge arm 8, a hinge cup 9, an adapter 10, a first connector 101, and a second connector 102. The hinge arm 8 is located above the hydraulic damper 2. One end of the hinge arm 8 is rotatably connected to the slide 1, and the other end of the hinge arm 8 is rotatably connected to one end of the first connector 101 and the second connector 102, respectively. The other ends of the first connector 101 and the second connector 102 are rotatably connected to the hinge cup 9, respectively. The first connector 101 is provided with a locking position 103, and one end of the second connector 102 is locked in the locking position 103, so that when the door body b is opened to nearly 90°, the door body b is positioned by the locking position 103, so that the door body b is kept in an open state of 90° or more. One end of the adapter 10 is rotatably connected to one end of the second connector 102, and the other end of the adapter 10 is rotatably connected to the piston rod 22 of the hydraulic damper 2. As is common knowledge, the hinge cup 9 is mounted on the door body b. In this embodiment, the rotatable connection is achieved through a pin.

[0042] The aforementioned hinge arm 8, second connector 102, adapter 10, hydraulic damper 2, and slide 1 form a five-bar connection structure, thereby ensuring that the hydraulic damper 2 is always under stress.

[0043] To maintain an aesthetically pleasing appearance, the hinge also includes a cover (not shown in the figure) that covers and secures the opening of the second receiving slot, thereby enhancing the overall appearance.

[0044] The working principle of this hinge is as follows: Spring 3 is compressed, causing a closing force on door b. When the door is opened, when door b is opened to 90°, the elastic force of spring 3 is greater than the damping of hydraulic damper 2. Hydraulic damper 2 then begins to function, with its piston rod 22 retracting inward to provide damping for door b, preventing it from wobbling after opening to 90°. This is the first-direction buffering. As door b is about to close, the piston rod 22 of hydraulic damper 2 extends outward, again providing damping for door b, preventing it from colliding with cabinet a when closing. This is the second-direction buffering.

[0045] The embodiments of this utility model have been described in detail above with reference to the accompanying drawings, but this utility model is not limited to the described embodiments. For those skilled in the art, various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of this utility model, and these variations still fall within the protection scope of this utility model.

Claims

1. A damper tightness adjusting mechanism characterized by: The device includes a slide (1), a hydraulic damper (2), and a spring (3). The slide (1) has a first receiving groove (11). The hydraulic damper (2) and the spring (3) are both placed in the first receiving groove (11). One end of the spring (3) abuts against the cylinder (21) of the hydraulic damper (2), and the piston rod (22) of the hydraulic damper (2) passes through the groove wall at one end of the first receiving groove (11). The tension adjustment mechanism also includes an adjusting member (4) and a pushing member (5) provided at one end of the adjusting member (4). The other end of the spring (3) abuts against the pushing member (5). The adjusting member (4) passes through the groove wall at the other end of the first receiving groove (11) and is screwed to the groove wall of the first receiving groove (11). The other end of the adjusting member (4) is provided with a driving part (41) for driving the adjusting member (4) to rotate.

2. The damper tension adjustment mechanism according to claim 1, characterized in that: The pusher (5) is fixed with a positioning part (51), which is away from the adjusting part (4), and the other end of the spring (3) is sleeved on the positioning part (51).

3. The damper tension adjustment mechanism of claim 1, wherein: The pusher (5) has a positioning groove (52), and one end of the adjuster (4) is placed in the positioning groove (52).

4. The damper tension adjustment mechanism of claim 1, wherein: A guide structure (6) is provided between the two side walls of the cylinder (21) of the hydraulic damper (2) and the two side walls of the first receiving groove (11) so that the hydraulic damper (2) can be slidably placed in the first receiving groove (11).

5. A damper tension adjustment mechanism according to claim 4, wherein: The guide structure (6) includes a plurality of first guide blocks (61) fixed on the two side walls of the cylinder (21), and a plurality of second guide blocks (62) and a plurality of third guide blocks (63) fixed on the two side walls of the first receiving groove (11), wherein the first guide blocks (61) are located between the second guide blocks (62) and the third guide blocks (63).

6. A damper tension adjustment mechanism according to claim 5, wherein: The first receiving groove (11) has a fourth guide block (64) fixed on both sides of the groove wall. The first guide block (61) can be placed on the fourth guide block (64) and slide to the position between the second guide block (62) and the third guide block (63).

7. The damper tension adjustment mechanism of claim 1, wherein: The tension adjustment mechanism also includes a base (7), the base (7) has a second receiving groove (71), the slide (1) is placed in the second receiving groove (71), and the piston rod (22) of the hydraulic damper (2) passes through the groove wall at one end of the first receiving groove (11) and the groove wall at one end of the second receiving groove (71) in sequence. The bottom of the second receiving groove (71) is provided with a limiting groove (72), and the cylinder (21) of the hydraulic damper (2) is slidably placed in the limiting groove (72).

8. The damper tension adjustment mechanism of claim 7, wherein: The second receiving groove (71) has a through hole (73) on its groove wall, and the driving part (41) of the adjusting member (4) passes through the through hole (73).

9. The damper tension adjustment mechanism of claim 7, wherein: The slide block (1) has two locking blocks (12) fixed on its two side walls. The second receiving groove (71) has two slots (74) with one end open. The locking block (12) is inserted into the slot (74) through the opening and moves in cooperation with the slot (74).

10. A hinge, characterized by: The damper tension adjustment mechanism includes any one of claims 1-9, and further includes a hinge arm (8), a hinge cup (9), a transition piece (10), a first connecting piece (101), and a second connecting piece (102). The hinge arm (8) is located above the hydraulic damper (2). One end of the hinge arm (8) is rotatably connected to the slide (1), and the other end of the hinge arm (8) is rotatably connected to one end of the first connecting piece (101) and the second connecting piece (102), respectively. The other ends of the first connecting piece (101) and the second connecting piece (102) are rotatably connected to the hinge cup (9), respectively. The first connecting piece (101) is provided with a locking position (103), and one end of the second connecting piece (102) is locked in the locking position (103). One end of the transition piece (10) is rotatably connected to one end of the second connecting piece (102), and the other end of the transition piece (10) is rotatably connected to the piston rod (22) of the hydraulic damper (2).

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