Hinge inner rocking connecting rod assembly structure and hinge
By setting a stop pin on the inner rocker arm of the hinge and adding a limiting boss and a protective sleeve, the problem of easy dislodgement of the torsion spring is solved, thereby improving the stability and reliability of the hinge.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-31
- Publication Date
- 2026-03-27
AI Technical Summary
The existing hinge design, where the torsion spring abuts against the inner pin, can easily cause the torsion spring to come loose, resulting in the hinge losing its cushioning function and having a shortened lifespan.
An abutment pin is installed on the inner rocker link, and a limiting boss is added between its connecting part and the abutment part. Combined with the protective sleeve, bidirectional limiting is performed to prevent the pin from falling out.
This improves the structural stability and service life of the hinge, ensures the reliability of the cushioning function, and extends the product's lifespan.
Smart Images
Figure CN224048925U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to hinge's technical field especially relates to a hinge inner swing connecting rod assembly structure and hinge. BACKGROUND
[0002] Hinge is a kind of hardware fittings commonly used in furniture door (such as cabinet door, cabinet door etc.), for realizing the opening and closing of door, part hinge also has buffering function, can let door slowly, smoothly close when closing, reduce collision and noise. The torsional spring in door and window hinge is usually directly abutted with the inner pin shaft of inner swing connecting rod to provide supporting force, the torsional spring generates reaction force in the process of hinge opening and closing through its elasticity, maintains the stability of door, cabinet body and other components. Avoiding loosening or shaking this design due to the relative position of torsion bar and inner pin shaft will change in the process of torsional spring rotating, the abutment position of torsion bar and inner pin shaft is easy to deviate due to stress concentration, leading to torsion bar deviation of torsional spring, losing adjustment function.
[0003] Part of prior art also tries to add abutment pin between torsional spring and inner swing connecting rod, and disperses stress through the abutment of pin and torsion bar. But there is only simple interference fit between inner swing connecting rod and abutment pin, when hinge bears larger load or is used for a long time, pin may move left and right in pin hole, and then lead to the gap between pin head and the inner wall of one side of base body being too large, so that the torsion bar of torsional spring falls into the gap and is stuck, thereby leading to hinge losing performance, seriously affecting the reliability and service life of product. CONTENT OF UTILITY MODEL
[0004] In order to solve the technical problem that the abutment mode of traditional inner pin shaft and torsion bar in current door and window hinge is easy to lead to torsional spring falling out, and the improved abutment pin structure still has the risk of pin falling out, the utility model provides a hinge inner swing connecting rod assembly structure and hinge. The specific scheme is as follows:
[0005] Firstly, the utility model provides a hinge inner swing connecting rod assembly structure, which comprises a base body, an inner swing connecting rod and a torsional spring, the inner swing connecting rod is rotatably installed in the base body through an inner pin shaft, the torsional spring is rotatably installed on the base body through an outer pin shaft, the torsion bar of the torsional spring is directly or indirectly abutted with the inner swing connecting rod, an abutment pin is arranged on the inner swing connecting rod, a connecting part for abutting the inner swing connecting rod is arranged in the middle of the abutment pin, the abutment pin is installed on the inner swing connecting rod by penetrating a first pin hole on the inner swing connecting rod, and two abutment parts are formed by the parts of the abutment pin exposed outside the inner swing connecting rod at both ends, the abutment pin is abutted with the torsion bar of the torsional spring through the abutment parts, and a limiting boss with a diameter larger than the first pin hole is arranged between the connecting part and one abutment part of the abutment pin.
[0006] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0007] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0008] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0009] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0010] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0011] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0012] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0013] Further, the abutting pin is arranged close to the inner pin shaft on one side, the inner pin shaft is sleeved with a protective sleeve between the inner swing link and the base body, one side of the protective sleeve is connected with the base body, and the other side is abutted with the limiting boss of the abutting pin, so as to limit the abutting pin on the inner swing link.
[0014] On the other hand, the embodiment also provides a hinge, which comprises a base body, a damping device, a link assembly and a hinge cup, the damping device is arranged on the base body, one end of the piston of the damping device is connected with the hinge cup through the link assembly, the inner swing link and the torsion spring in the link assembly are installed on the base body by using the hinge inner swing link assembly structure.
[0015] The utility model discloses increase abutment pin to carry out torsional spring's deformation support, improved product's structural stability, increase structural strength and service life, on this basis, the assembly structure is through increasing the one-way location of limiting boss on abutment pin, and through the design of protective sleeve to the location of abutment pin in another direction, further avoid abutment pin to come out first pin hole, solved the abutment pin to be easy in inside swing connecting rod left and right movement, lead to the hinge to lose the buffer function even appear the problem of damage, improved its product quality and reliability. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is the structure diagram of inside swing connecting rod assembly structure in the embodiment of the application.
[0017] Figure 2 It is the assembly drawing of inside swing connecting rod assembly structure in the embodiment of the application.
[0018] Figure 3 It is the explosion of swing connecting rod assembly structure in the embodiment of the application Figure 1 .
[0019] Figure 4 It is the explosion of swing connecting rod assembly structure in the embodiment of the application Figure 2 .
[0020] Figure 5 It is the explosion of swing connecting rod assembly structure in the embodiment of the application Figure 3 .
[0021] Figure 6 It is the structure diagram of hinge in the embodiment of the application.
[0022] Reference signs:
[0023] Base body is 10;
[0024] Inside swing connecting rod is 20, first pin hole is 21, and clearance seat is 22;
[0025] Torsional spring is 30, and torsional rod is 31;
[0026] Inner pin shaft is 40, and outer pin shaft is 50;
[0027] Abutment pin is 60, connecting part is 61, abutment part is 62, limiting boss is 63, and overlapping limiting area is 631;
[0028] Protective sleeve is 70, damping device is 80, and hinge cup is 90. DETAILED DESCRIPTION
[0029] It should be noted that the embodiments and technical features in the present application can be combined with each other without conflict, and the detailed description in the specific embodiments should be understood as an explanation and illustration of the purpose, technical solutions and advantages of the present application, and should not be regarded as an improper limitation on the present application.
[0030] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the specific technical solutions of the present application will be further described in detail below with reference to the drawings in the embodiments of the present application. The following embodiments are used to illustrate the present application, but not to limit the scope of the present application.
[0031] In the embodiments of the present application, the terms "first", "second" are only used for descriptive purposes, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more features. In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.
[0032] In addition, in the embodiments of the present application, the orientation terms such as "upper", "lower", "left" and "right" are defined with respect to the orientation of the components shown in the drawings, and it should be understood that these directional terms are relative concepts, which are used for relative description and clarification, and can be changed accordingly according to the change of the orientation of the components placed in the drawings.
[0033] In the embodiments of the present application, unless otherwise specified and limited, the term "connection" should be understood in a broad sense, for example, "connection" can be fixed connection, or detachable connection, or integral; can be directly connected, or indirectly connected through intermediate medium.
[0034] In the embodiments of the present application, the term "include", "contain" or any other variant thereof is intended to cover non-exclusive inclusion. Without more limitation, the element defined by the sentence "include one" does not exclude the presence of other same elements in the process, method, article or device including the element.
[0035] In the embodiments of the present application, the words such as "exemplary" or "for example" are used to represent as an example, illustration or description. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as more preferred or more advantageous than other embodiments or design schemes. Rather, the words such as "exemplary" or "for example" are intended to present the relevant concept in a specific manner.
[0036] Embodiment 1:
[0037] Please refer to Figures 1-6The embodiment provides a hinge inner swing connecting rod 20 assembly structure, which comprises a base body 10, the inner swing connecting rod 20 and a torsion spring 30, wherein the inner swing connecting rod 20 is rotatably installed in the base body 10 through an inner pin shaft 40, the torsion spring 30 is rotatably installed on the base body 10 through an outer pin shaft 50, and a torsion rod 31 of the torsion spring 30 directly or indirectly abuts against the inner swing connecting rod 20. The inner swing connecting rod 20 is used as a connecting piece, cooperates with the torsion spring 30, a damping device of the hinge and a hinge cup, and then the opening and closing buffering function of the hinge is realized.
[0038] In the embodiment, an abutting pin 60 is arranged on the inner swing connecting rod 20, and the abutting pin 60 is mainly used for abutting against the torsion spring 30 and providing deformation support in cooperation with the deformation of the torsion spring 30. The middle part of the abutting pin 60 is provided with a connecting part 61 for abutting against the inner swing connecting rod 20, and both ends are provided with abutting parts 62 for abutting against the torsion spring 30. Specifically, the both ends of the abutting pin 60 expose the inner swing connecting rod 20 to form two abutting parts 62, the abutting pin 60 abuts against the torsion rod 31 of the torsion spring 30 through the abutting parts 62, provides a supporting force for the torsion spring 30, so that the torsion spring 30 can be deformed smoothly, and then the adjusting effect of the torsion spring is realized.
[0039] The abutting pin 60 is arranged in the first pin hole 21 and is prone to left-right movement in the process of using the hinge, so that the gap between the pin head and one side of the inner wall of the base body is too large, the torsion rod of the torsion spring falls into the gap and is stuck, and then the hinge is damaged and cannot be used. Therefore, as one focus of the embodiment, the abutting pin 60 is provided with a limiting boss 63 with a diameter larger than that of the first pin hole 21 between the connecting part 61 and one abutting part 62. As to the limiting boss 63, the abutting pin 60 passes through the first pin hole 21 from the abutting part 62 on the side without the limiting boss 63, and when the abutting pin 60 penetrates to the limiting boss 63, the limiting boss 63 can prevent the abutting pin 60 from penetrating too much and simultaneously one-way limit the abutting pin 60, that is, limit the abutting pin 60 from coming out in the direction of the first pin hole 21.
[0040] In another aspect, in order to improve the reliability of the assembly structure of the inner rocking link 20, as a preferred, the abutting pin 60 is arranged close to one side of the inner pin shaft 40, the inner pin shaft 40 is sleeved with a protective sleeve 70 between the inner rocking link 20 and the base body 10, one side of the protective sleeve 70 is connected with the inner wall of the base body 10, and the other side is abutted with the limiting boss 63 of the abutting pin 60, which is used for limiting the abutting pin 60 on the inner rocking link 20. The advantage of this design is that the protective sleeve 70 simultaneously limits the inner rocking link 20 and the abutting pin 60. On the one hand, the protective sleeve 70 is arranged between the inner rocking link 20 and the base body 10, limiting the swinging of the inner rocking link 20 towards the base body 10; on the other hand, the protective sleeve 70 abuts against the limiting boss 63, so that the limiting boss 63 cannot be pulled out of the first pin hole 21 in the direction away from the first pin hole 21, and then cooperates with the above-mentioned one-way limiting to complete the two-way limiting of the abutting pin 60. In the absence of external force, the connecting part 61 of the abutting pin 60 cannot be pulled out of the first pin hole 21.
[0041] Further preferably, the protective sleeve 70 has an overlapping limiting area 631 arranged in the axial direction of the inner pin shaft between one end of the protective sleeve 70 and the limiting boss 63 of the abutting pin 60, and the other end of the protective sleeve 70 abuts against the inner wall of the base body 10. The other end of the protective sleeve 70 abuts against the limiting boss 63 through the overlapping limiting area 631, thereby ingeniously enabling the protective sleeve 70 to simultaneously limit the inner rocking link 20 and the abutting pin 60.
[0042] The embodiment increases the deformation support of the abutting pin 60 to the torsional spring 30, improves the reliability of the torsional spring in realizing the adjusting function, increases the structural strength and service life, and on this basis, the assembly structure further increases the limiting boss 63 on the abutting pin 60 to realize one-way limiting, and further limits the abutting pin 60 in another direction through the design of the protective sleeve 70, thereby avoiding the abutting pin 60 from being pulled out of the first pin hole 21, solving the problem that the abutting pin 60 easily moves left and right in the inner rocking link 20, resulting in the loss of the buffering function of the hinge or even damage, and improving the product quality and reliability.
[0043] In terms of the connecting part 61 of the abutting pin 60, the abutting pin 60 is installed on the inner rocking link 20 by penetrating through the first pin hole 21 on the inner rocking link 20, and the abutting pin 60 is placed into the first pin hole 21 through the connecting part 61 to realize the installation on the inner rocking link 20.
[0044] As a preferred, the abutment pin 60 is provided with a file pattern on the part through the inner swing link 20, the file pattern can be provided between the abutment part 62 without limiting the boss and the connecting part 61, when the abutment pin 60 slides out from the side without limiting the boss 63, the abutment pin 60 is limited by the friction between the file pattern and the inner swing link 20, and the abutment pin 60 is limited to fall out of the inner swing link 20. It is worth noting that the file prevents the abutment pin 60 from falling off the inner swing link 20, and the embodiment does not limit its position and length.
[0045] As one of the preferred solutions, please refer to Figure 3 , the connecting part 61 of the abutment pin 60 is provided with a file pattern, and the connecting part 61 of the abutment pin 60 is limited on the inner swing link 20 by the file pattern. After assembly, the abutment pin 60 abuts and rubs with the inner wall of the first pin hole 21 through the file pattern, thereby increasing the damping between the abutment pin 60 and the inner swing link 20, reducing the possibility of the abutment pin 60 falling out, and improving the reliability of the product.
[0046] The shape of the file pattern can be any shape that can achieve the damping effect, and therefore the embodiment does not limit and elaborate.
[0047] Also preferably, please refer to Figure 5 , the connecting part 61 of the abutment pin 60 can also not be provided with a file pattern, and the connecting part 61 of the abutment pin 60 and the abutment part 62 without limiting the boss 63 are of the same diameter and shape, which is an integral structure. Since the abutment pin 60 realizes reliable bidirectional design through the limiting boss 63 and the protective sleeve 70, such arrangement can reduce the production cost of the pin, reduce the processing procedure, and improve the production capacity.
[0048] Please refer to Figures 1-6 , some specific embodiments of the present embodiment are provided below.
[0049] As one of the embodiments, the length of the abutment pin 60 is less than the inner length of the base body 10, and there is a gap between the abutment part 62 of the abutment pin 60 and the base body 10. This design can realize the relative movement between the abutment pin 60 and the base body 10 when the inner swing link 20 rotates, realize the abutment deformation support of the torsional spring 30, and ensure that the base body 10 will not be contacted or even scratched.
[0050] As one of the embodiments, the torsional spring 30 in the present embodiment is a double torsional spring, and the two torsional rods 31 of the torsional spring 30 abut the two abutment parts 62 of the abutment pin 60. The design of the double torsional spring can form a stable elastic support structure, and the design of the two abutment parts 62 of the abutment pin 60 abutting can provide better support force for the deformation of the torsional spring 30.
[0051] As one of the embodiments, the base body 10 and the inner rocker link 20 are respectively provided with through holes matched with the inner pin shaft, the inner pin shaft sequentially passes through one side of the base body 10, the inner rocker link 20, and then passes out from the other side of the base body 10, and the inner rocker link 20 is rotatably installed on the base body 10 through the inner pin shaft. Further, the protective sleeve 70 is provided with two, and the two protective sleeves 70 are respectively arranged on the two gaps between the inner rocker link 20 and the two sides of the base body 10, for limiting the inner rocker link 20, thereby avoiding the inner rocker link 20 from swinging relative to the base body 10, and ensuring the stability of the hinge structure.
[0052] As one of the embodiments, the inner rocker link 20 is provided with an empty seat 22 at the top, and the torsion spring 30 is arranged between the empty seat 22 of the inner rocker link 20 and the top of the base body 10, so that the structure inside the base body 10 is more compact.
[0053] Embodiment 2:
[0054] The embodiment also provides a hinge, which comprises a base body 10, a damping device 80, a link assembly and a hinge cup 90, wherein the damping device 80 is arranged on the base body 10, one end of the piston of the damping device 80 is connected with the hinge cup through the link assembly, and the inner rocker link 20 and the torsion spring 30 in the link assembly are installed on the base body 10 in the hinge inner rocker link 20 assembly structure described in embodiment 1.
[0055] The above-mentioned application embodiment serial number is only for description, and does not represent the advantages and disadvantages of the embodiments. The above is only the preferred embodiment of the application, and does not limit the patent scope of the application, and any equivalent structure or equivalent flow transformation, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the application.
Claims
1. A hinged inner rocker linkage assembly structure, comprising a base body, an inner rocker linkage, and a torsion spring, wherein the inner rocker linkage is rotatably mounted inside the base body via an inner pin; the torsion spring is rotatably mounted on the base body via an outer pin, and the torsion bar of the torsion spring directly or indirectly abuts against the inner rocker linkage, characterized in that, The inner rocker connecting rod is provided with an abutting pin, the middle part of the abutting pin is provided with a connecting part for abutting the inner rocker connecting rod; the abutting pin is installed on the inner rocker connecting rod through a first pin hole on the inner rocker connecting rod, and the two ends of the abutting pin are exposed from the inner rocker connecting rod to form two abutting parts; the abutting pin abuts the torsion bar of the torsion spring through the abutting parts; the abutting pin is provided with a limiting boss with a diameter larger than the first pin hole between the connecting part and one abutting part.
2. The hinge inner rocker linkage assembly of claim 1, wherein, The abutting pin is arranged close to the inner pin shaft, the inner pin shaft is provided with a protective sleeve between the inner rocker connecting rod and the base body, one side of the protective sleeve is connected with the base body, and the other side abuts against the limiting boss of the abutting pin, so as to limit the abutting pin on the inner rocker connecting rod.
3. A hinge inner rocker linkage assembly according to claim 1 or 2, wherein, The part of the abutting pin passing through the inner rocker connecting rod is provided with a file pattern, the abutting pin is limited on the inner rocker connecting rod through the file pattern, so as to limit the abutting pin from coming out of the inner rocker connecting rod.
4. The hinge inner rocker linkage assembly of claim 1 or 2, wherein, The connecting part of the abutting pin and the abutting part without the limiting boss are an integral structure with the same diameter and shape.
5. The hinge inner rocker linkage assembly of claim 1, wherein, The length of the abutting pin is smaller than the inner length of the base body, and there is a gap between the abutting part of the abutting pin and the base body.
6. The hinge inner rocker linkage assembly of claim 1, wherein, The torsion spring is a double torsion spring, and the two torsion bars of the torsion spring abut against the two abutting parts of the abutting pin respectively.
7. The hinge inner rocker linkage assembly structure of claim 2, wherein, The base body and the inner rocker connecting rod are respectively provided with through holes matched with the inner pin shaft, the inner pin shaft passes through the one side of the base body, the inner rocker connecting rod in sequence, and comes out from the other side of the base body, the inner rocker connecting rod is rotatably installed on the base body through the inner pin shaft; the protective sleeve is provided with two, the two protective sleeves are arranged on the two gaps between the inner rocker connecting rod and the base body respectively, so as to limit the inner rocker connecting rod.
8. The hinge inner rocker linkage assembly of claim 2, wherein, The one end of the protective sleeve and the limiting boss of the abutting pin are provided with an overlapping limiting area in the axial direction of the inner pin shaft, the one end of the protective sleeve abuts against the inner wall of the base body, and the other end abuts against the limiting boss through the overlapping limiting area.
9. The hinge inner rocker linkage assembly of claim 1 or 2, wherein, The top of the inner rocker connecting rod is provided with a clearance seat, and the torsion spring is arranged between the clearance seat of the inner rocker connecting rod and the top of the base body.
10. A hinge comprising a base body, a damping device, a link assembly and a hinge cup, the damping device being arranged on the base body, one end of a piston of the damping device being connected to the hinge cup through the link assembly, characterized in that, The inner rocker connecting rod and the torsion spring in the connecting rod assembly are installed on the base body by using the hinge inner rocker connecting rod assembly structure in any one of claims 1-9.