CN221032084U - Hinge with door closing damping function - Google Patents

Abstract

The utility model provides a hinge with a door closing damping function, which comprises a swing arm and a base, wherein a positioning part of the swing arm is hinged on the base, the base is provided with a transmission component provided with a power spring, the base is also provided with a door closing damping component, the transmission component comprises a pushing connecting piece, a push rod and a transmission rod, the push rod is connected on the base in a sliding way, the connecting end of the door closing damping component is connected on the base in a sliding way, the positioning end of the door closing damping component is connected with the connecting end of the transmission rod, the power spring is sleeved on the transmission rod, the two elastic ends of the power spring are respectively connected on the base and the transmission rod, the pushing connecting piece is arranged on the swinging part of the swing arm, and the pushing connecting piece is contacted with the push rod and pushes the push rod to move linearly along with the closing of the swing arm so as to push the door closing damping component to act on the swing arm. Simple structure, close the damping effectual, the noise is little, has the vibrations of alleviateing simultaneously and promotes and use experience quality.

Description

Hinge with door closing damping function

Technical Field

The utility model relates to the technical field of hinges, in particular to a hinge with a door closing damping function.

Background technique

Most of the existing door-opening household appliances, especially steam ovens, rely on hinges to connect the box body and the door body. Traditional hinges generally include a base installed on the box body and a swing arm installed on the door body. The swing arm is connected to the base through a transmission assembly to open and close, so that the door body can be opened or closed on the box body. In order to automatically close the door body and always have elastic pressure to press it tightly against the box body in the closed state, a power spring is usually installed on the hinge. The tension or elastic force of the power spring is used to stretch or compress the power spring in a torsion manner to open the door body, or the door body is closed under the elastic reset action of the power spring.

However, traditional hinges have the following shortcomings in practical applications:

1) When closing, the door body is affected by the elastic tension and closes quickly, producing noise, which is prone to pinching and has poor safety.

2) Although existing hinges are equipped with buffer dampers, they generally use a transmission component to transmit the power through torsion and then push the buffer damper, which has poor transmission performance. At the same time, the damping effect of the buffer damper cannot be directly applied to the door body, resulting in poor damping effect. Especially when used on doors with heavy loads, it will also generate noise and a poor user experience.

3) Vibration is likely to occur during the opening or closing process, thus affecting the normal use of the product.

Utility Model Content

The purpose of the invention of the utility model is to overcome the deficiencies of the prior art and to provide a hinge with a door closing damping function, which has a simple structure and can directly apply damping to the door body, has a good door closing damping effect, and has low noise, while also reducing vibration and improving the quality of user experience.

The inventive objective of the utility model is achieved as follows: a hinge with a door closing damping function, comprising a swing arm and a base, the positioning portion of the swing arm being hinged on the base through a main shaft, the base being provided with a transmission assembly equipped with a power spring, the transmission assembly being transmission-connected to the base and the swing arm, wherein the base is also provided with a door closing damping assembly, the transmission assembly comprising a pushing connecting piece, a push rod, and a transmission rod, the push rod being slidably connected to the base, the connecting end of the door closing damping assembly being slidably connected to the base, the positioning end of the door closing damping assembly being connected to the connecting end of the transmission rod, the power spring being sleeved on the transmission rod and its two elastic ends being respectively connected to the outer side of the base and the positioning end of the transmission rod, the pushing connecting piece being installed on the swinging portion of the swing arm, and the pushing connecting piece contacts the push rod as the swing arm closes and swings and pushes the push rod to move linearly, so that the push rod pushes the door closing damping assembly to move, thereby causing the damping effect of the door closing damping assembly to act on the swing arm.

According to the above optimization, the door closing damping assembly includes a damping connecting frame and a door closing damper. The damping connecting frame is linearly slidably connected in the base through a connecting shaft, the piston rod of the door closing damper is slidably connected to the damping connecting frame through a connecting shaft, and the positioning end of the door closing damper is positionally connected to the damping connecting frame through a connecting shaft. The push rod pushes the piston rod of the door closing damper as the swing arm closes and swings, and the front and rear ends of the damping connecting frame are respectively connected to the connecting ends of the transmission assembly and the transmission rod through the positioning shaft.

According to the above optimization, the door closing damper includes a damping cylinder, a shock-absorbing spring damping mounting block, the damping cylinder is positioned and connected to the damping connecting frame through a connecting shaft, the damping mounting block is installed on the piston rod of the damping cylinder and is slidingly connected to the damping connecting frame through a connecting shaft, the push rod is snap-connected to the damping mounting block, the shock-absorbing spring is on the piston rod of the damping cylinder, and the elastic ends of the shock-absorbing spring are respectively connected to the damping mounting block and the damping cylinder.

According to the above optimization, the transmission assembly also includes a swing rod and a connecting rod, one end of the swing rod is connected to the swing part of the swing arm through a connecting shaft, the other end of the swing rod is connected to one end of the connecting rod through a swing shaft, and the other end of the connecting rod is connected to a damping connecting frame through a fixed shaft.

According to the above optimization, the push rod is provided with a guide arc groove and a directional groove for sliding connection with the swing shaft and the fixed shaft.

According to the above optimization, a swing frame with opening and closing assist and hovering functions is provided between the push rod and the base, and the swing frame is provided with a special-shaped slide groove whose shape matches the swing trajectory of the swing arm. The special-shaped slide groove is slidably connected with a sliding shaft, and the sliding shaft is installed on the swing rod of the transmission assembly.

According to the above optimization, the special-shaped slide groove is provided with an opening slot for fully positioning and opening the swing arm, and a closing slot for closing and locking the swing arm. The opening slot is gradually inclined downward to the left at the left end of the special-shaped slide groove, and the closing slot is gradually inclined upward to the right at the right end of the special-shaped slide groove.

The advantages of the utility model are:

1) Through the structural coordination of the door closing damping assembly with the pushing connector, the push rod and the transmission rod, during the door closing period, the pushing connector directly pushes the push rod to move linearly, thereby pushing the door closing damping assembly to move. Direct transmission has high stability, and the damping directly acts on the swing arm, so that the door closing damping effect of the door body is good, the noise is small, and the user experience is improved.

2) The closed door damping assembly using this structure has a simple structure and effectively reduces vibration due to its own structural characteristics, thereby ensuring the quality of product use.

3) With the structure of the swing frame, the door can be opened and closed with assist and hovering functions, with high transmission stability and good use effect.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG1 is a schematic structural diagram of a preferred embodiment of the utility model in which a door closing damping assembly intervenes when entering a closed state.

FIG2 is a cross-sectional view of a preferred embodiment of the present invention showing the door closing damping assembly intervening when the door enters a closed state.

FIG3 is a schematic structural diagram of a preferred embodiment of the utility model in a closed state.

FIG. 4 is a cross-sectional view of a preferred embodiment of the utility model in a closed state.

FIG5 is a partial cross-sectional view of a preferred embodiment of the utility model in a closed state.

FIG. 6 is an exploded view of a preferred embodiment of the present utility model.

Detailed ways

The utility model is further described below in conjunction with the accompanying drawings.

As shown in Figures 1 to 6, the hinge with door closing damping function of the utility model comprises a swing arm 1 and a base 2, the positioning part of the swing arm 1 is hinged on the base 2 through a main shaft, the base 2 is provided with a transmission assembly equipped with a power spring 3, and the transmission assembly is transmission-connected to the base 2 and the swing arm 1. The base 2 is also provided with a door closing damping assembly 4, and the transmission assembly comprises a push connector 5, a push rod 6, and a transmission rod 7. The push rod 6 is slidably connected to the base 2, the connecting end of the door closing damping assembly 4 is slidably connected to the base 2, and the positioning end of the door closing damping assembly 4 is connected to the connecting end of the transmission rod 7. The power spring 3 is sleeved on the transmission rod 7 and its two elastic ends are respectively connected to the outer side of the base 2 and the positioning end of the transmission rod 7, the push connector 5 is installed on the swing part of the swing arm 1, and the push connector 5 contacts the push rod 6 when the swing arm 1 is closed and swung and pushes the push rod 6 to move linearly, so that the push rod 6 pushes the door closing damping assembly 4 to move, so that the damping effect of the door closing damping assembly 4 is on the swing arm 1.

Through the structural coordination of the door closing damping assembly 4 with the pushing connector 5, the push rod 6 and the transmission rod 7, during the door closing period, the pushing connector 5 directly pushes the push rod 6 to move in a straight line, thereby pushing the door closing damping assembly 4 to act, with direct transmission and high stability, and the damping directly acts on the swing arm 1, so that the door closing damping effect of the door body is good, the noise is small, and the user experience is improved.

Referring to FIGS. 1 to 6 , the door closing damping assembly 4 includes a damping connecting frame 41 and a door closing damper 42. The damping connecting frame 41 is linearly slidably connected in the base 2 via a connecting shaft, the piston rod of the door closing damper 42 is slidably connected to the damping connecting frame 41 via a connecting shaft, and the positioning end of the door closing damper 42 is positionally connected to the damping connecting frame 41 via a connecting shaft. The push rod 6 pushes the piston rod of the door closing damper 42 as the swing arm 1 is closed and swung, and the front and rear ends of the damping connecting frame 41 are respectively connected to the transmission assembly and the connecting end of the transmission rod 7 via a positioning shaft.

In addition, the transmission assembly also includes a swing rod 8 and a connecting rod 9. One end of the swing rod 8 is connected to the swing part of the swing arm 1 through a connecting shaft, and the other end of the swing rod 8 is connected to one end of the connecting rod 9 through a swing shaft. The other end of the connecting rod 9 is connected to a damping connecting frame 41 through a fixed shaft.

Furthermore, the push rod 6 is provided with a guide arc groove 61 and a directional groove 62 for sliding connection with the swing shaft and the fixed shaft.

When the door is closed, under the action of the reset tension of the power spring 3, the transmission rod 7 is pulled inward to sequentially link the damping connection frame 41, the connecting rod 9, and the swing rod 8 to swing inward, thereby driving the swing arm 1 to automatically close toward the base 2. When the swing arm 1 swings to a certain angle, the push connector 5 contacts the push rod 6 and pushes the push rod 6 to move inward in a straight line, and then the push rod 6 pushes the door closing damper 42 to move inward. When the push rod 6 continues to push the door closing damper 42 to a certain position, the connecting shaft of the positioning end of the door closing damper 42 is positioned on the damping connection frame 41, and the door closing damper 42 starts to work. The piston rod of the door closing damper 42 is compressed inward so that the damping of the door closing damper 42 acts on the swing arm 1. The operation stability is high, and the door closing damping function is realized when the door is closed, no noise is generated, and various components are protected, the safety of use is improved, and the user experience of the product is ensured.

1 to 6, in the optimized solution, the door closing damper 42 includes a damping cylinder 421, a damping spring 422, and a damping mounting block 423. The damping cylinder 421 is positioned and connected to the damping connecting frame 41 through a connecting shaft, the damping mounting block 423 is mounted on the piston rod of the damping cylinder 421 and is slidably connected to the damping connecting frame 41 through a connecting shaft, the push rod 6 is snap-connected to the damping mounting block 423, the damping spring 422 is sleeved on the piston rod of the damping cylinder 421, and the two elastic ends of the damping spring 422 are respectively connected to the damping mounting block 423 and the damping cylinder 421.

With the structural cooperation of the damping cylinder 421, the shock absorbing spring 422 and the damping mounting block 423, when the swing arm 1 rotates a certain angle with the door body, the shock absorbing spring 422 can directly provide buffer resistance to the transmission component and reduce vibration, so as to adapt to the use of the door body with a larger load.

Referring to Figures 1 to 6, it is further detailed that a swing frame 10 with opening and closing assist and hovering functions is provided between the push rod 6 and the base 2, and the swing frame 10 is provided with a special-shaped slide groove 11 whose shape matches the swing trajectory of the swing arm 1, and the special-shaped slide groove 11 is slidably connected with a sliding shaft, and the sliding shaft is installed on the swing rod 8 of the transmission assembly.

The special-shaped chute 11 is provided with an opening slot 12 for fully positioning and opening the swing arm 1, and a closing slot 13 for closing and locking the swing arm 1. The opening slot 12 is gradually inclined downward to the left at the left end of the special-shaped chute 11, and the closing slot 13 is gradually inclined upward to the right at the right end of the special-shaped chute 11.

By coordinating the special-shaped slide groove 11 of the swing frame 10 with the opening slot 12 and the closing slot 13, the transmission rod 7 assembly can move with the swing arm 1 to drive the sliding shaft to slide in the opening slot 12, the closing slot 13 or the special-shaped slide groove 11, so that the structural hinge has the opening and closing assist and opening hovering functions, is easy to operate, is suitable for heavy load conditions, and has a good user experience.

The above specific embodiments are only specific implementation methods with better effects of the utility model. Any structure that is the same or equivalent to the hinge with door closing damping function of the utility model is within the protection scope of the utility model.

Claims (7)

1. A hinge with a door closing damping function, comprising a swing arm (1) and a base (2), wherein a positioning portion of the swing arm (1) is hinged to the base (2) via a main shaft, wherein the base (2) is provided with a transmission assembly equipped with a power spring (3), wherein the transmission assembly is transmission-connected to the base (2) and the swing arm (1), and wherein the base (2) is further provided with a door closing damping assembly (4), wherein the transmission assembly comprises a pushing connecting member (5), a push rod (6), and a transmission rod (7), wherein the push rod (6) is slidably connected to the base (2), and the connecting end of the door closing damping assembly (4) is slidably connected to the On the base (2), the positioning end of the door closing damping assembly (4) is connected to the connecting end of the transmission rod (7), the power spring (3) is sleeved on the transmission rod (7) and its two elastic ends are respectively connected to the outer side of the base (2) and the positioning end of the transmission rod (7), the pushing connecting member (5) is installed on the swinging part of the swing arm (1), and the pushing connecting member (5) contacts with the push rod (6) when the swing arm (1) is closed and swung, and pushes the push rod (6) to move linearly, so that the push rod (6) pushes the door closing damping assembly (4) to move, thereby making the damping effect of the door closing damping assembly (4) act on the swing arm (1). 2. The hinge with a door closing damping function according to claim 1 is characterized in that: the door closing damping assembly (4) includes a damping connecting frame (41) and a door closing damper (42), the damping connecting frame (41) is linearly slidably connected to the base (2) through a connecting shaft, the piston rod of the door closing damper (42) is slidably connected to the damping connecting frame (41) through a connecting shaft, the positioning end of the door closing damper (42) is positioned and connected to the damping connecting frame (41) through a connecting shaft, and the push rod (6) pushes the piston rod of the door closing damper (42) when the swing arm (1) is closed and swung, and the front and rear ends of the damping connecting frame (41) are respectively connected to the connecting ends of the transmission assembly and the transmission rod (7) through the positioning shaft. 3. The hinge with door closing damping function according to claim 2 is characterized in that: the door closing damper (42) includes a damping cylinder (421), a shock absorbing spring (422), and a damping mounting block (423); the damping cylinder (421) is positioned and connected to the damping connecting frame (41) through a connecting shaft; the damping mounting block (423) is installed on the piston rod of the damping cylinder (421) and is slidingly connected to the damping connecting frame (41) through a connecting shaft; the push rod (6) is snap-connected with the damping mounting block (423); the shock absorbing spring (422) is sleeved on the piston rod of the damping cylinder (421), and the two elastic ends of the shock absorbing spring (422) are respectively connected to the damping mounting block (423) and the damping cylinder (421). 4. The hinge with door closing damping function according to claim 1 or 2 is characterized in that: the transmission assembly also includes a swing rod (8) and a connecting rod (9), one end of the swing rod (8) is connected to the swing part of the swing arm (1) through a connecting shaft, the other end of the swing rod (8) is connected to one end of the connecting rod (9) through a swing shaft, and the other end of the connecting rod (9) is connected to a damping connecting frame (41) through a fixed shaft. 5. The hinge with door closing damping function according to claim 4 is characterized in that: the push rod (6) is provided with a guide arc groove (61) and a directional groove (62) for sliding connection with the swing shaft and the fixed shaft. 6. According to claim 1, the hinge with door closing damping function is characterized in that: a swing frame (10) with opening and closing assist and hovering functions is provided between the push rod (6) and the base (2), and the swing frame (10) is provided with a special-shaped slide groove (11) whose shape matches the swing trajectory of the swing arm (1), and the special-shaped slide groove (11) is slidably connected with a sliding shaft, and the sliding shaft is installed on the swing rod (8) of the transmission assembly. 7. The hinge with door closing damping function according to claim 6 is characterized in that: the special-shaped slide groove (11) is provided with an opening slot (12) for fully positioning and opening the swing arm (1) and a closing slot (13) for closing and locking the swing arm (1), the opening slot (12) is gradually inclined downward to the left at the left end of the special-shaped slide groove (11), and the closing slot (13) is gradually inclined upward to the right at the right end of the special-shaped slide groove (11).