High-flexibility door stopper assembly

Abstract

The utility model relates to the technical field of hardware for doors, in particular to a high-flexibility door stopper assembly which comprises a door stopper seat, a base, a first connecting rod, a second connecting rod, a spring bolt and an elastic piece. The door stopper seat is slotted from top to bottom to form a mounting groove, the upper end of the first connecting rod is hinged to the upper portion of the mounting groove through a first shaft, the lower end of the first connecting rod is hinged to the upper end of the second connecting rod through a second shaft, and the lower end of the second connecting rod is hinged to one end of the spring bolt through a third shaft. The middle of the spring bolt is hinged to the lower portion of the mounting groove through a fourth shaft, and a limiting groove is formed in the other end of the spring bolt and extends out of the mounting groove. The elastic piece is arranged in the middle of the mounting groove, and the deformation recovery end of the elastic piece is non-longitudinally abutted against the upper end of the second shaft; the base is provided with a limiting shaft corresponding to the limiting groove; the problems that when a door stopper base and a base are matched to conduct buckling or separating actions, needed operation force is large, flexibility is low, and experience feeling is poor are solved.

Description

Technical Field

[0001] This utility model relates to the field of door hardware technology, and in particular to a highly flexible door catch assembly. Background Technology

[0002] Existing door catch assemblies typically consist of a door catch base and a base. The door catch base is installed on the door, and the base is installed on the ground. When the door catch base moves to the base with the door, the door catch base and the base are locked together. However, current door catch bases are usually composed of a damper and a latch hinge. The latch rotates and engages with the base, and a spring is fitted around the damper to drive the latch to rotate and return to its original position when the door leaves the base. As a result, whether the door catch base is engaged or disengaged, the spring applies a spring force to the latch, making it very difficult for the latch to rotate. Therefore, when the door catch base and the base work together to engage or disengage, the user needs to apply more force to the door, greatly reducing flexibility and resulting in a poor user experience. Utility Model Content

[0003] To address the aforementioned shortcomings, the purpose of this invention is to propose a highly flexible door catch assembly that solves the problems of high operating force, low flexibility, and poor user experience when the door catch base and the base work together to perform latching or dislodgement actions.

[0004] To achieve this objective, the present invention adopts the following technical solution:

[0005] A highly flexible door catch assembly includes a door catch base, a base, a first connecting rod, a second connecting rod, a latch, and an elastic element. The door catch base has a groove cut from top to bottom to form a mounting groove. The upper end of the first connecting rod is hinged to the upper part of the mounting groove via a first shaft. The lower end of the first connecting rod is hinged to the upper end of the second connecting rod via a second shaft. The lower end of the second connecting rod is hinged to one end of the latch via a third shaft. The middle part of the latch is hinged to the lower part of the mounting groove via a fourth shaft. The other end of the latch forms a limiting groove that extends outside the mounting groove.

[0006] The elastic element is disposed in the middle of the mounting groove, and the deformation recovery end of the elastic element does not longitudinally abut against the upper end of the second shaft;

[0007] The base is provided with a limiting shaft corresponding to the limiting groove;

[0008] When the third axis is behind the fourth axis, the limiting groove faces the limiting axis; when the door catch and the base are close to each other, the limiting axis enters the limiting groove and drives the lock tongue to rotate until the third axis is in front of the fourth axis.

[0009] Furthermore, the elastic element includes at least one double torsion spring, the helical hole of which is connected to the middle of the mounting groove via a fifth shaft located behind the second shaft. One end of the double torsion spring abuts against the side wall of the mounting groove, and the other end of the double torsion spring abuts against the upper end of the second shaft.

[0010] Furthermore, the first connecting rod is a damper, the shell of the first connecting rod is hinged to the upper part of the mounting groove via the first shaft, and the telescopic end of the first connecting rod is hinged to the upper end of the second connecting rod via the second shaft.

[0011] Furthermore, the door suction seat cover is provided with a door suction seat cover, which partially encloses the opening of the mounting groove; the door suction seat cover is provided with a limiting protrusion facing into the mounting groove, and the limiting protrusion abuts against the front side of the first connecting rod.

[0012] Furthermore, the second connecting rod uses a material with a density of less than 2 g / cm³. 3 Materials.

[0013] Furthermore, the limiting shaft is connected to the base.

[0014] Furthermore, according to the rotation trajectory of the latch, the lower end of the mounting groove has a limiting slide groove on the left and right sides of the groove, respectively. The left and right sides of the latch are respectively provided with guide sliders corresponding to the limiting slide grooves, and the guide sliders slide within the limiting slide grooves.

[0015] Furthermore, the guide slider is made of a flexible material.

[0016] The technical solution provided by this utility model can include the following beneficial effects: By using the multi-axis hinge structure of the first link, the second link, and the latch, as well as the non-longitudinal abutment design of the elastic element, the direction of the elastic force is changed, avoiding the direct longitudinal transmission of the elastic force to the third axis. This makes it easier to switch between the latch's separated state (i.e., the third axis is behind the fourth axis) and the engaged state (i.e., the third axis is in front of the fourth axis), significantly reducing the resistance to the latch rotation. At the same time, the non-longitudinal elastic force can assist the second axis in rotating, quickly achieving left and right swings to cooperate with the third axis to drive the latch rotation. This greatly reduces the operating force required when the door catch and the base are engaged or disengaged, making the user operation more convenient and flexible, and improving the user experience. Attached Figure Description

[0017] Figure 1 This is a cross-sectional view of a highly flexible door catch assembly (in the separated state) according to one embodiment of the present invention.

[0018] Figure 2 Is it like this? Figure 1A partial structural diagram of the door catch holder shown (without the door catch holder cover).

[0019] The components include: door catch seat 1, base 2, first connecting rod 3, second connecting rod 4, locking tongue 5, elastic element 6, mounting groove 11, first shaft 31, second shaft 32, third shaft 41, fourth shaft 51, limiting groove 52, limiting shaft 21, fifth shaft 61, door catch seat cover 12, limiting protrusion 121, limiting slide groove 13, and guide slider 53. Detailed Implementation

[0020] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0021] In the description of this utility model, it should be understood that the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this utility model. Furthermore, features defined with "first" and "second" may explicitly or implicitly include one or more of these features, used to distinguish and describe features, without any order or emphasis.

[0022] In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0023] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model according to the specific circumstances.

[0024] The following is combined Figures 1 to 2 This describes a highly flexible door catch assembly according to an embodiment of the present invention.

[0025] A highly flexible door catch assembly includes a door catch base 1, a base 2, a first connecting rod 3, a second connecting rod 4, a latch 5, and an elastic element 6. The door catch base 1 has a groove from top to bottom to form a mounting groove 11. The upper end of the first connecting rod 3 is hinged to the upper part of the mounting groove 11 via a first shaft 31. The lower end of the first connecting rod 3 is hinged to the upper end of the second connecting rod 4 via a second shaft 32. The lower end of the second connecting rod 4 is hinged to one end of the latch 5 via a third shaft 41. The middle part of the latch 5 is hinged to the lower part of the mounting groove 11 via a fourth shaft 51. The other end of the latch 5 forms a limiting groove 52, which extends outside the mounting groove 11.

[0026] The elastic element 6 is located in the middle of the mounting groove 11, and the deformation recovery end of the elastic element 6 does not longitudinally abut against the upper end of the second shaft 32.

[0027] The base 2 is provided with a limiting shaft 21 corresponding to the limiting groove 52;

[0028] When the third shaft 41 is behind the fourth shaft 51, the limiting groove 52 faces the limiting shaft 21; when the door catch seat 1 and the base 2 approach each other, the limiting shaft 21 enters the limiting groove 52 and drives the lock tongue 5 to rotate until the third shaft 41 is in front of the fourth shaft 51.

[0029] In a preferred embodiment of this utility model, a highly flexible door catch assembly is provided, such as... Figure 1 and 2 As shown, the multi-axis hinge structure of the first link 3, the second link 4, and the latch 5, along with the non-longitudinal abutment design of the elastic element 6, changes the direction of the elastic force, preventing the elastic force from being directly transmitted longitudinally to the third axis 41. This makes switching between the latch's disengaged state (i.e., the third axis 41 is behind the fourth axis 51) and the engaged state (i.e., the third axis 41 is in front of the fourth axis 51) much easier, significantly reducing the resistance to the latch rotation. At the same time, the non-longitudinal elastic force assists the second axis 32 in rotating, quickly achieving left and right swings to cooperate with the third axis 41 in driving the latch 5 to rotate. This greatly reduces the operating force required for the door catch seat 1 and the base 2 to engage or disengage, making user operation easier and more flexible, and improving the user experience.

[0030] Furthermore, the elastic element 6 includes at least one double torsion spring, the helical hole of which is connected to the middle of the mounting groove 11 via a fifth shaft 61. The fifth shaft 61 is located behind the second shaft 32. One end of the double torsion spring abuts against the side wall of the mounting groove 11, and the other end of the double torsion spring abuts against the upper end of the second shaft 32.

[0031] In this embodiment, in order to achieve non-longitudinal contact between the deformation recovery end of the elastic element 6 and the upper end of the second shaft 32, the elastic element 6 is preferably a double torsion spring. The double torsion spring shaft is connected to the rear side of the second shaft 32, with one end abutting against the side wall of the mounting groove 11 and the other end abutting against the upper end of the second shaft 32, so that a non-longitudinal elastic force can be applied to the second shaft 32.

[0032] Furthermore, the first link 3 is a damper, the shell of the first link 3 is hinged to the upper part of the mounting groove 11 via the first shaft 31, and the telescopic end of the first link 3 is hinged to the upper end of the second link 4 via the second shaft 32.

[0033] In this embodiment, since both the first link 3 and the second link 4 are rigid links, when the first link 3 and the second link 4 swing together through the hinge, they are prone to generating opposing forces, resulting in rotational jamming and insufficient smoothness of rotation. Therefore, the first link 3 is preferably a damper. Through the flexible telescopic movement performance of the damper, the relative movement of the first link 3 and the second link 4 is smoother, thereby improving the flexibility of the door catch assembly state switching.

[0034] Furthermore, the door catch seat 1 is covered with a door catch seat cover 12, which partially encloses the opening of the mounting groove 11; the door catch seat cover 12 is provided with a limiting protrusion 121 facing the mounting groove 11, and the limiting protrusion 121 abuts against the front side of the first connecting rod 3.

[0035] In this embodiment, if the swing amplitude is too large when the first link 3 and the second link 4 move relative to each other, it is easy to cause the door suction assembly state switching time to be too long. Therefore, a limiting protrusion 121 is provided to abut against the front side of the first link 3 to limit the swing amplitude of the first link 3, so that the first link 3 mainly cooperates with the movement of the second link 4 through the flexible extension and retraction of the damper, which shortens the movement time. Moreover, the first link 3 mainly relies on the flexible extension and retraction of the damper, and the smoothness of the movement coordination will be better.

[0036] Furthermore, the second connecting rod 4 uses a material with a density of less than 2 g / cm³. 3 Materials.

[0037] In this embodiment, the second connecting rod 4 uses a material with a density lower than 2 g / cm³. 3 The lightweight material makes it easier for the locking tongue 52 to rotate and push the second linkage 4 to swing, making operation less strenuous and improving the user experience.

[0038] Furthermore, the limiting shaft 21 is connected to the base 2.

[0039] In this embodiment, the limiting shaft 21 is connected to the base 2. The rotation of the limiting shaft 21 helps to improve the smoothness of the limiting shaft 21 entering the limiting groove 52.

[0040] Furthermore, according to the rotation trajectory of the latch 5, the lower end of the mounting groove 11 has a limiting slide groove 13 on the left and right sides of the groove, respectively. The left and right sides of the latch 5 are respectively provided with guide sliders 53 corresponding to the limiting slide grooves 13, and the guide sliders 53 are limited to slide in the limiting slide grooves 13.

[0041] In this embodiment, a limiting slide groove 13 is provided in the mounting groove 11 to cooperate with the guide slider 53 of the latch 5, precisely constraining the rotation trajectory of the latch 5 and preventing deviation or shaking. This design ensures that the latch 5 and the limiting shaft 21 are accurately positioned each time they engage, improving the locking stability of the door catch assembly and reducing the possibility of misoperation.

[0042] Furthermore, the guide slider 53 is made of flexible material.

[0043] In this embodiment, the guide slider 53 is preferably made of a flexible material (such as rubber or silicone) to reduce vibration and noise during sliding, and at the same time reduce frictional loss with the limiting groove 13; at the same time, the flexible material can also adapt to small deformations, improving the tolerance of relative installation errors between the door suction seat 1 and the base 2.

[0044] Other components and operations of a highly flexible door catch assembly according to an embodiment of the present invention are known to those skilled in the art and will not be described in detail here.

[0045] In this specification, the terms "embodiment," "example," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0046] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A high flexibility door closer assembly characterised in that: The device includes a door catch, a base, a first connecting rod, a second connecting rod, a latch, and an elastic element. The door catch has a groove cut from top to bottom to form a mounting groove. The upper end of the first connecting rod is hinged to the upper part of the mounting groove via a first shaft. The lower end of the first connecting rod is hinged to the upper end of the second connecting rod via a second shaft. The lower end of the second connecting rod is hinged to one end of the latch via a third shaft. The middle part of the latch is hinged to the lower part of the mounting groove via a fourth shaft. The other end of the latch forms a limiting groove that extends outside the mounting groove. The elastic element is disposed in the middle of the mounting groove, and the deformation recovery end of the elastic element does not longitudinally abut against the upper end of the second shaft; The base is provided with a limiting shaft corresponding to the limiting groove; When the third axis is behind the fourth axis, the limiting groove faces the limiting axis; when the door catch and the base are close to each other, the limiting axis enters the limiting groove and drives the lock tongue to rotate until the third axis is in front of the fourth axis.

2. A high flexibility door closer assembly according to claim 1, characterised in that: The elastic element includes at least one double torsion spring, the helical hole of which is connected to the middle of the mounting groove via a fifth shaft located behind the second shaft. One end of the double torsion spring abuts against the side wall of the mounting groove, and the other end of the double torsion spring abuts against the upper end of the second shaft.

3. A high flexibility door closer assembly according to claim 1, wherein: The first connecting rod is a damper, the shell of the first connecting rod is hinged to the upper part of the mounting groove via the first shaft, and the telescopic end of the first connecting rod is hinged to the upper end of the second connecting rod via the second shaft.

4. A high flexibility door closer assembly according to claim 3, wherein: The door suction seat cover is provided with a door suction seat cover, which partially encloses the opening of the mounting groove; the door suction seat cover is provided with a limiting protrusion facing the mounting groove, and the limiting protrusion abuts against the front side of the first connecting rod.

5. A high flexibility door closer assembly according to claim 1, wherein: The second link employs a material having a density less than 2 g / cm 3 .

6. A high flexibility door closer assembly according to claim 1, wherein: The limiting shaft is connected to the base.

7. A high flexibility door closer assembly according to claim 1, wherein: According to the rotation trajectory of the latch, the lower end of the mounting groove has a limiting slide groove on the left and right sides of the groove. The left and right sides of the latch are respectively provided with guide sliders corresponding to the limiting slide grooves, and the guide sliders slide in the limiting slide grooves.

8. A high flexibility door closer assembly according to claim 7, wherein: The guide slider is made of flexible material.

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