A spring rear-mounted hardware hinge

Abstract

A spring post-installed hardware hinge, comprising a hinge arm, on which an upper connecting rod and a lower connecting rod are hingedly installed; the other ends of the upper connecting rod and the lower connecting rod are hinged to the hinge cup, and the hinge arm is covered on a bottom plate, and a guide groove is provided in the bottom plate or the hinge arm, and a reset slider is slidably installed in the guide groove; a driving arm is extended in the direction of the guide groove at the tail of the lower connecting rod, and when the hinge is opened and closed, the driving arm pushes the reset slider to slide back and forth in the guide groove. The beneficial effect of the present invention is that the present invention realizes the post-installation structure of the reset spring by designing a guide groove and a reset slider on the hinge arm, and cooperating with the driving arm and the push spring. Compared with the design in the prior art that requires the reset spring to be installed in the middle step, the present invention arranges the installation of the reset spring in the subsequent link, simplifies the overall installation process, and significantly improves the convenience and efficiency of installation.

Description

Technical Field

[0001] The invention relates to a hinge, in particular to a spring rear-mounted hardware hinge. Background Art

[0002] At present, in the field of furniture hardware technology, hinges are widely used as connecting parts for cabinet doors and cupboard doors, which can achieve stability and durability in opening and closing through their own structural characteristics. In order to improve the functionality and service life of hinges, many modern hinge designs introduce reset springs and buffer structures, so that the hinges can achieve self-reset during the opening and closing process, and can effectively reduce the impact noise when the cabinet door is closed. However, in the existing hinge installation process, there are still some defects that cannot be ignored, which are mainly reflected in the following aspects: 1. The installation of the reset spring is complex: In the existing hinge design, the reset spring usually needs to be installed in the middle step of the hinge. After installing the reset spring, other components such as guide sliders, buffers, etc. need to be further installed, which makes the overall installation process cumbersome and takes a long time. In addition, the reset spring needs to be pre-stressed during installation to ensure that it provides sufficient elastic force, but the pre-stressed spring itself is in a high elastic state, and the installation operation requires high precision.

[0003] 2. The movement space of the reset spring is not completely restricted: In existing designs, the installation of the reset spring usually relies on simple limit devices or component locking, resulting in its movement space not being completely restricted. If vibration or misoperation occurs during the installation of subsequent components, the reset spring may pop out due to loss of restraint. Due to the high elasticity of the reset spring, this situation is very likely to cause accidental injury to the operator and poses a major safety hazard.

[0004] 3. Poor coordination of components affects overall installation efficiency: In the prior art, the cooperation relationship between the reset spring and other components, such as buffers, drive arms, etc., is often unclear. Especially when the reset spring is in the pre-stressed state, since subsequent components, such as sliders or buffer devices, need to be installed or fixed on the spring, the slightest carelessness may cause the spring to pop out or the components to detach, making the installation operation difficult and easily affecting the overall installation efficiency.

[0005] 4. Insufficient stability and durability of the reset spring: In existing hinge designs, the installation position of the reset spring usually fails to form a completely stable structural combination with other components. This may cause the reset spring to loosen, shift or wear after long-term work, which not only reduces the working performance of the hinge, but also affects its service life.

[0006] In summary, the installation of the return spring in the prior art is relatively complex, there are significant safety hazards during operation, poor coordination between components and low installation efficiency, which can easily affect the overall performance and installation reliability of the hinge. Therefore, it is necessary to make further improvements. Summary of the invention

[0007] The purpose of the present invention is to overcome the shortcomings of the existing technology and provide a spring rear-mounted hardware hinge with a simple structure, easy to use, which can simplify the installation of the return spring while improving the installation efficiency, and effectively avoid the risk of the spring popping out during the installation process through structural design, thereby improving the assembly safety and service life.

[0008] The object of the present invention is achieved in the following manner: a spring rear-mounted hardware hinge, which comprises a hinge arm, on which an upper connecting rod and a lower connecting rod are hingedly mounted; The other ends of the upper connecting rod and the lower connecting rod are hinged to the hinge cup. The upper connecting rod and the lower connecting rod rotate relative to the hinge arm and the hinge cup to realize the opening and closing of the hinge. The characteristics are: The hinge arm is covered on the bottom plate, and a guide groove is provided in the bottom plate or the hinge arm, and the reset slider is slidably arranged in the guide groove; A driving arm is extended from the tail of the lower connecting rod toward the guide groove. When the hinge is opened or closed, the driving arm pushes the reset slider to slide forward and backward in the guide groove. A buffer is also installed in the guide groove, and the buffer is connected to the driving arm; a push spring is installed at the tail of the reset slider, one end of the push spring presses on the reset slider, and the other end presses on the spring pressure plate. The push spring pushes the reset slider to always move in the direction of the hinge arm.

[0009] Furthermore, an inner slide groove is arranged at the bottom of the hinge arm, and the inner slide groove and the guide groove are connected and enclosed to form a limit area, and the reset slider slides in the limit area.

[0010] Furthermore: the interior of the reset slider is hollow to form a receiving area, and the buffer is installed in the receiving area.

[0011] Furthermore, the buffer is covered with a guide sleeve, which is fixed in the accommodating area, and one end of the buffer extending out of the guide sleeve is connected to the reset slider.

[0012] Furthermore: the spring pressure plate includes a fixed plate and a baffle, which are arranged in an "L" shape between the fixed plate and the baffle, the fixed plate covers the guide groove, and the baffle presses on one end of the push spring.

[0013] Furthermore: a locking hole is provided on the fixing plate, and a rivet passes through the hinge arm and is connected to the locking hole to fix the spring pressure plate.

[0014] The beneficial effects of the present invention are: 1. Simple structure, low production cost and improved market competitiveness.

[0015] 2. The present invention realizes the post-installation structure of the reset spring by designing a guide groove and a reset slider on the hinge arm, and cooperating with the driving arm and the push spring. Compared with the design in the prior art that requires the reset spring to be installed in the middle step, the present invention arranges the installation of the reset spring in the subsequent link, simplifies the overall installation process, and significantly improves the convenience and efficiency of installation.

[0016] 3. The present invention fixes one end of the push spring by means of a spring pressure plate, and forms a limited movement space by means of a guide groove and a slider, thereby effectively avoiding the risk of the reset spring being ejected due to vibration or misoperation. This limit design not only improves the safety of the installation operation, but also ensures the stability of the spring during operation.

[0017] 4. The reset slider of the present invention slides in the guide groove, and realizes the self-reset function of the hinge through the cooperation of the driving arm and the push spring. In addition, the accommodation area provided inside the reset slider can accommodate the buffer, and the buffer is connected to the reset slider through the guide sleeve to form a compact component combination. This design enables good cooperation between the reset spring, the buffer and the driving arm, thereby improving the overall operating performance and reliability of the hinge. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 , 2 It is the general assembly diagram of the structure of the present invention.

[0019] Figure 3 It is a structural exploded view of the present invention.

[0020] Figure 4 It is a cross-sectional view of the structure of the present invention.

[0021] Figure 5 This is an exploded view of the structure after the hinge arm and the bottom plate are hidden. DETAILED DESCRIPTION

[0022] The present invention is further described in detail below with reference to the accompanying drawings. A spring rear-mounted hardware hinge comprises a hinge arm 1, on which an upper connecting rod 2 and a lower connecting rod 3 are hingedly mounted; The other ends of the upper connecting rod 2 and the lower connecting rod 3 are hinged to the hinge cup 4. The upper connecting rod 2 and the lower connecting rod 3 rotate relative to the hinge arm 1 and the hinge cup 4 to realize the opening and closing of the hinge. The characteristics are: The hinge arm 1 is covered on the bottom plate 5. A guide groove 51 is provided in the bottom plate 5 or the hinge arm 1. The reset slider 6 is slidably mounted in the guide groove 51. The tail of the lower connecting rod 3 extends toward the guide groove 51 with a driving arm 31. When the hinge is opened or closed, the driving arm 31 pushes the reset slider 6 to slide forward and backward in the guide groove 51. A buffer 7 is also installed in the guide groove 51, and the buffer 7 is connected to the driving arm 31; a push spring 8 is installed at the tail of the reset slider 6, one end of the push spring 8 presses on the reset slider 6, and the other end presses on the spring pressure plate 9. The push spring 8 pushes the reset slider 6 to always move in the direction of the hinge arm 1.

[0023] In one of the embodiments: a mounting slot 11 is provided at the tail of the hinge arm 1 , and the spring pressure plate 9 is installed into the guide slot 51 through the mounting slot 11 .

[0024] In one embodiment, an inner slide groove 12 is provided at the bottom of the hinge arm 1. The inner slide groove 12 and the guide groove 51 are combined to form a limiting area, and the reset slider 6 slides in the limiting area.

[0025] In one embodiment, the interior of the reset slider 6 is hollow to form a receiving area 61 , and the buffer 7 is installed in the receiving area 61 .

[0026] In one embodiment, the buffer 7 is covered with a guide sleeve 71 , which is fixed in the accommodating area 61 , and one end of the buffer 7 extending out of the guide sleeve 71 is connected to the reset slider 6 .

[0027] In one of the embodiments: the spring pressure plate 9 includes a fixed plate 91 and a baffle plate 92, which are arranged in an "L" shape. The fixed plate 91 covers the guide groove 51, and the baffle plate 92 presses on one end of the push spring 8.

[0028] In one of the embodiments: a locking hole 93 is opened on the fixing plate 91, and a rivet 94 passes through the hinge arm 1 and is connected to the locking hole 93 to fix the spring pressure plate 9.

[0029] Working principle: The hinge of the present invention is composed of hinge arm, upper connecting rod, lower connecting rod, hinge cup and other components. During use, the hinge arm realizes its rotational movement relative to the hinge cup by hinge connection with the upper connecting rod and the lower connecting rod, thereby realizing the opening and closing of the cabinet door. When the cabinet door is opened, the upper connecting rod and the lower connecting rod rotate around the hinge point of the hinge arm and the hinge cup, driving the entire hinge to unfold; when the cabinet door is closed, the upper connecting rod and the lower connecting rod drive the hinge back to the initial position under the action of the reset spring, realizing the closing of the cabinet door.

[0030] Among them, the reset function is one of the core innovations of the present invention, which is achieved through the coordinated action of components such as the drive arm, the reset slider, the push spring and the spring pressure plate.

[0031] Specifically, when the hinge is opened, the driving arm pushes the reset slider to slide in the guide groove along the direction of the guide groove, and at the same time compresses the push spring, so that the push spring is in a pre-stressed state.

[0032] When the hinge is closed, the push spring releases its elastic force, pushing the reset slider back to its initial position, and at the same time transmits the force to the lower connecting rod through the driving arm, so that the hinge returns to its initial closed state.

[0033] This design ensures that the hinge can automatically reset during use without the need for additional external force, thereby improving the convenience of use. At the same time, the reset force can also maintain the airtightness of the cabinet door after closing.

[0034] In order to further optimize the closing performance of the cabinet door, the present invention designs an accommodation area inside the reset slider, and installs a buffer in the accommodation area. One end of the buffer is connected to the reset slider, and the other end is fixed by a guide sleeve.

[0035] When the door is close to closing, the movement of the drive arm acts on the buffer through the reset slider, and the buffer absorbs part of the movement energy, provides a damping effect, and reduces the impact of the door closing. The design of the buffer ensures that there is no impact sound when the door is closed, while reducing the wear of the components and extending the service life of the hinge.

[0036] At the same time, by integrating the buffer into the reset slider, the present invention effectively avoids the space waste and installation complexity that may be caused by the independent installation of the buffer, and realizes the organic combination of compact structure and functionality. In addition, the present invention forms a limit zone through the guide groove and the inner slide groove on the hinge arm, so that the movement range of the reset slider is strictly limited. During the operation of the hinge, the reset slider always keeps sliding in the limit zone, avoiding the situation where the function is affected by the looseness of the spring or the slider.

[0037] In addition, the spring pressure plate is installed into the guide groove through the installation slot at the tail of the hinge arm and fixed by locking holes and rivets, thereby ensuring the stability of the push spring during work.

[0038] Therefore, through the multiple limiting structures of the reset slider, the guide groove and the spring pressure plate, the present invention effectively avoids the displacement or ejection of the reset spring during the working process, and improves the stability of the overall assembly structure.

[0039] It is important to note that: after the hinge body is installed, the push spring in this case is installed into the guide groove 51 from the installation slot 11 opened at the tail of the hinge arm 1. At this time, since the front end of the guide groove forms a limit zone on the left and right and up and down, and only the tail end is open, the push spring can be limited in multiple directions after installation. The user only needs to insert the spring pressure plate into the guide groove, and connect it to the locking hole 93 through the hinge arm 1 with the rivet 94 to fix the spring pressure plate 9. Through the post-installation design, the reset spring can be installed in the last step, which greatly simplifies the installation process and avoids the problem of spring pop-up caused by improper operation during the traditional spring pre-compression process.

[0040] At the same time, the rear-mounted design significantly simplifies the installation process, reduces the safety hazards caused by spring pre-compression during installation, and improves installation efficiency and safety.

[0041] In summary, the present invention forms a spring rear-mounted hardware hinge with compact structure and perfect functions through the cooperation of hinge arm, reset slider, push spring, drive arm, buffer and spring pressure plate. Its working principle not only solves the problems of complex installation and poor safety of reset spring in the prior art, but also significantly improves the installation efficiency, operation stability and service life of the hinge. At the same time, the comfort and durability of the cabinet door when closing are improved through the buffer function, so it can be widely promoted and used.

[0042] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.

Claims

1. A spring rear-mounted hardware hinge, comprising a hinge arm (1), an upper connecting rod (2) and a lower connecting rod (3) being hingedly mounted on the hinge arm (1); The other ends of the upper connecting rod (2) and the lower connecting rod (3) are hinged to the hinge cup (4). The upper connecting rod (2) and the lower connecting rod (3) rotate relative to the hinge arm (1) and the hinge cup (4) to realize the opening and closing of the hinge. The invention is characterized in that: The hinge arm (1) is covered on the bottom plate (5), a guide groove (51) is provided in the bottom plate (5) or the hinge arm (1), and a reset slider (6) is slidably mounted in the guide groove (51); A driving arm (31) extends from the tail of the lower connecting rod (3) in the direction of the guide groove (51). When the hinge is opened or closed, the driving arm (31) pushes the reset slider (6) to slide forward and backward in the guide groove (51); A buffer (7) is also installed in the guide groove (51), and the buffer (7) is connected to the driving arm (31); a push spring (8) is installed at the tail of the reset slider (6), one end of the push spring (8) presses on the reset slider (6), and the other end presses on the spring pressure plate (9), and the push spring (8) pushes the reset slider (6) to always move in the direction of the hinge arm (1).

2. The spring rear-loading hardware hinge according to claim 1, characterized in that: The rear end of the hinge arm (1) is provided with an installation slot (11), and the spring pressure plate (9) is installed in the guide slot (51) through the installation slot (11).

3. The spring rear-loading hardware hinge according to claim 1, characterized in that: An inner slide groove (12) is provided at the bottom of the hinge arm (1), and the inner slide groove (12) and the guide groove (51) are combined and connected to form a limiting area, and the reset slider (6) slides in the limiting area.

4. The spring rear-loading hardware hinge according to claim 3, characterized in that: The interior of the reset slider (6) is hollow to form a receiving area (61), and the buffer (7) is installed in the receiving area (61).

5. The spring rear-loading hardware hinge according to claim 4, characterized in that: The buffer (7) is covered with a guide sleeve (71) installed outside, the guide sleeve (71) is fixed in the accommodating area (61), and one end of the buffer (7) extending out of the guide sleeve (71) is connected to the reset slider (6).

6. The spring rear-loading hardware hinge according to claim 1, characterized in that: The spring pressure plate (9) comprises a fixed plate (91) and a baffle plate (92), wherein the fixed plate (91) and the baffle plate (92) are arranged in an "L" shape, the fixed plate (91) covers the guide groove (51), and the baffle plate (92) presses against one end of the push spring (8).

7. The spring rear-loading hardware hinge according to claim 6, characterized in that: The fixing plate (91) is provided with a locking hole (93), and a rivet (94) passes through the hinge arm (1) and is connected to the locking hole (93) to fix the spring pressure plate (9).

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