CN113266229B

CN113266229B - Buffering hinge

Info

Publication number: CN113266229B
Application number: CN202110629692.6A
Authority: CN
Inventors: 周庆刚
Original assignee: Nanjing Vocational University of Industry Technology NUIT
Current assignee: Nanjing Vocational University of Industry Technology NUIT
Priority date: 2021-06-07
Filing date: 2021-06-07
Publication date: 2022-02-01
Anticipated expiration: 2041-06-07
Also published as: CN113266229A

Abstract

The invention discloses a buffering hinge, which relates to the hinge field and comprises an upper shell and a lower shell which are detachably connected and a positioning block arranged between the upper shell and the lower shell, wherein a cavity is arranged in the positioning block, a buffering mechanism and a driven rotating mechanism connected with a door are arranged in the cavity, the buffering mechanism is used for reducing the rotating speed of the driven rotating mechanism, and a liquid loop is also arranged in the buffering mechanism and used for improving the rotating stability of the driven rotating mechanism. Reduce mechanical component and damage, prolong this device life, this device is convenient for install, dismantle, and application scope is wide.

Description

Buffering hinge

Technical Field

The invention relates to the field of hinges, in particular to a buffering hinge.

Background

Existing hinges generally comprise: the movable part is connected with the door and the fixed part is connected with the door frame, the movable part rotates in the fixed part, but the movable part is not suitable for some glass doors or large and heavy doors, and the glass doors are possibly damaged or strong impact is generated on the frame due to dead weight, too high speed and other reasons when the doors are opened or closed, so that the service life is influenced, and therefore, the buffer hinge needs to be provided to solve the problems.

Disclosure of Invention

In order to solve the technical problems, the invention provides the following technical scheme:

the utility model provides a buffering hinge, is including dismantling the last casing of connection, lower casing and the locating piece of installation between the two, be equipped with the cavity in the locating piece, the driven rotary mechanism of installation buffer gear and AND gate connection in the cavity, buffer gear is used for reducing the rotatory speed of driven rotary mechanism, still be equipped with the liquid return circuit in the buffer gear, the liquid return circuit is used for improving the rotatory stability of driven rotary mechanism.

Preferably, buffer gear is including sliding the slider in the cavity, it has the blind hole to open in the slider, peg graft inserted bar and installation end cover in the blind hole, the inserted bar other end passes the end cover and installs on the inner wall of cavity, the inserted bar overcoat has the spring, the inner wall and the end cover of cavity are connected respectively at the spring both ends, the slider bottom is equipped with the buffer block, buffer block butt driven rotary mechanism.

Preferably, driven rotary mechanism includes the special-shaped cam with the buffer block butt, the afterbody of special-shaped cam is installed in changeing the round pin, and special-shaped cam and buffer block butt all the time at the rotation in-process, it rotates to change round pin lower extreme and connects in the cavity, change round pin upper end and pass the locating piece and rotate in the bush, the bush is installed on last casing, the mounting hole of installation special-shaped cam is still opened to the locating piece side.

Preferably, the liquid loop comprises a first flow channel and a first cavity which are arranged at the front end of the inserted rod and communicated with each other, a partition part is sleeved at the end part of the inserted rod and connected with each other through a pin, a second flow channel penetrating through the bottom end of the partition part is arranged at the bottom end of the partition part, a reversing element is arranged in the partition part, a third flow channel which is coaxially arranged with the second flow channel and communicated with the third flow channel is formed in the center of the reversing element, four protrusions which are annularly arranged along the axis of the reversing element are arranged on the reversing element, a fourth flow channel is formed between every two protrusions, a second cavity with a variable volume is formed between the partition part and the bottom wall of the blind hole, liquid is filled in the second cavity, a pipe gap is formed between the upper end of the partition part and the lower end of the end cover, and the pipe gap is coaxially arranged with the first flow channel and communicated with the driven rotating mechanism when the driven rotating mechanism is not started.

The invention has the beneficial effects that:

1. according to the door, the driven rotating mechanism is arranged to drive the buffer mechanism to move, namely the rotating pin rotates to drive the special-shaped cam to rotate, and the special-shaped cam is always abutted against the buffer block in the rotating process, so that the resistance of the buffer block, the sliding block and the spring is required to be overcome when the door rotates, the speed is reduced, and the impact on the door and a door frame is reduced;

2. by arranging the liquid loop in the buffer mechanism, when the door is opened, the liquid in the cavity II flows into the cavity I, the flow channel I and the pipe gap, and when the door is closed, the liquid in the cavity I flows into the pipe gap, the flow channel I and the cavity II, so that no matter the door is opened or closed, the resistance of the liquid needs to be overcome in the rotating process of the door, the speed is further reduced, the resonance amplitude of each mechanical element in the device is reduced, the rotating stability of the driven rotating mechanism is improved, the damage to the mechanical element is reduced, and the service life of the device is prolonged;

3. the device is convenient to install and disassemble and has wide application range.

Drawings

FIG. 1 is a schematic structural diagram of the components of the present invention.

Fig. 2 is a schematic view of the internal structure of the positioning block when the driven rotating mechanism is not started.

Fig. 3 is an enlarged view of a portion a in fig. 2.

Fig. 4 is a schematic view of the internal structure of the positioning block when the driven rotating mechanism rotates at the maximum angle in the present invention.

Fig. 5 is an enlarged view of a portion a in fig. 4.

Fig. 6 is a schematic structural view of a commutation element.

Fig. 7 is a cross-sectional view of fig. 6.

The device comprises an upper shell, a lower shell, a positioning block, a cavity 7, a buffer mechanism 4, a driven rotating mechanism 5, a liquid loop 6, a cavity 7, a sliding block 8, a blind hole 9, an inserted rod 10, an end cover 11, a spring 12, a buffer block 13, a special-shaped cam 14, a rotating pin 15, a bushing 16, a mounting hole 17, a flow channel I18, a flow channel I19, a cavity I20, a partition part 21, a flow channel II 22, a reversing element 23, a flow channel III 24, a bulge 25, a flow channel IV 26, a cavity II, a pipe gap 27 and a pin 28.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.

Examples

As shown in fig. 1 to 7, a buffering hinge includes an upper housing 1 and a lower housing 2 detachably connected to each other, and a positioning block 3 installed between the upper housing and the lower housing, a cavity 7 is provided in the positioning block 3, a buffering mechanism 4 and a driven rotating mechanism 5 connected to a door are installed in the cavity 7, the buffering mechanism 4 is used for reducing the rotating speed of the driven rotating mechanism 5, a liquid loop 6 is further provided in the buffering mechanism 4, and the liquid loop 6 is used for improving the rotating stability of the driven rotating mechanism 5.

In this embodiment, buffer gear 4 is including sliding slider 8 in cavity 7, it has blind hole 9 to open in slider 8, peg graft 10 and installation end cover 11 in the blind hole 9, the inserted bar 10 other end passes end cover 11 and installs on the inner wall of cavity 7, the inserted bar 10 overcoat has spring 12, the inner wall and the end cover 11 of cavity 7 are connected respectively to spring 12 both ends, 8 bottom of slider are equipped with buffer block 13, buffer block 13 butt driven rotary mechanism 5.

In this embodiment, the driven rotating mechanism 5 includes a special-shaped cam 14 abutted against the buffer block 13, the tail of the special-shaped cam 14 is installed in the rotating pin 15, the special-shaped cam 14 is always abutted against the buffer block 13 in the rotating process, the lower end of the rotating pin 15 is rotatably connected in the cavity 7, the upper end of the rotating pin 15 penetrates through the positioning block 3 and rotates in the bushing 16, the bushing 16 is installed on the upper housing 1, and the side surface of the positioning block 3 is further provided with an installation hole 17 for installing the special-shaped cam 14.

In this embodiment, the liquid circuit 6 includes a first flow passage 18 and a first cavity 19 which are arranged at the front end of the insertion rod 10 and are communicated with each other, a partition 20 is sleeved at the end of the insertion rod 10 and is connected with the first flow passage through a pin 28, a second flow passage 21 which penetrates through the bottom end of the partition 20 is arranged, a reversing element 22 is arranged in the partition 20, a third flow passage 23 which is coaxially arranged with and communicated with the second flow passage 21 is arranged at the center of the reversing element 22, four protrusions 24 which are annularly arranged along the axis of the reversing element 22 are arranged on the reversing element 22, a fourth flow passage 25 is formed between every two protrusions 24, a second cavity 26 with a variable volume is formed between the partition 20 and the bottom wall of the blind hole 9, liquid is filled in the second cavity 26, a pipe gap 27 is formed between the upper end of the partition 20 and the lower end of the end cover 11, and the pipe gap 27 is coaxially arranged with and communicated with the first flow passage 18 when the driven rotating mechanism 5 is not started.

The working process and principle are as follows: when in use, the device is arranged on a door frame, the rotating pin 15 is arranged on a door, and the driven rotating mechanism 5 rotates along with the opening and closing of the door;

when the door is opened (in the process of the state from fig. 2 to fig. 4), the rotating pin 15 rotates, so that the shaped cam 14 rotates, the shaped cam 14 is always abutted against the buffer block 13 in the rotating process, so that the buffer block 13 and the slide block 8 move in the chamber 7 and the spring 12 is compressed, therefore, in the opening process of the door, the resistance of the buffer block 13, the slide block 8 and the spring 12 needs to be overcome, so as to decelerate, meanwhile, when the slide block 8 moves, the pipe gap 27 is increasingly large in volume, the cavity two 26 is small in volume, the flow channel three 23 and the flow channel four 25 of the reversing element 22 can be communicated with liquid, so that the liquid in the cavity two 26 flows from the flow channel two 21 to the flow channel three 23 and the flow channel four 25 to the cavity one 19, the flow channel one 18 and the pipe gap 27 (as shown in the arrow direction in fig. 5), therefore, the door also needs to overcome the resistance of the liquid in the rotating process, further decelerate, the resonance amplitude of each mechanical element in the device is reduced, the damage of the mechanical element is reduced, and the service life of the device is prolonged;

when the door is closed, the rotating pin 15 rotates, so that the special-shaped cam 14 rotates, the buffer block 13 and the slide block 8 move in the chamber 7, the spring 12 gradually returns due to the self-restoring force, meanwhile, when the slide block 8 moves, the tube gap 27 is smaller and smaller, the third flow channel 23 of the reversing element 22 can be used for flowing liquid, the fourth flow channel 25 cannot be used for flowing liquid, the second cavity 26 is larger in volume, and the liquid in the tube gap 27, the first flow channel 18 and the first cavity 19 flows into the second cavity 26 from the third flow channel 23 and the second flow channel 21 (as shown in the arrow direction in fig. 3), so that the spring 12 gradually returns, and the resistance of the liquid is overcome while the slide block 8 moves.

According to the invention, the driven rotating mechanism 5 is arranged to drive the buffering mechanism 4 to move, namely the rotating pin 15 rotates to drive the special-shaped cam 14 to rotate, and the special-shaped cam 14 is always abutted against the buffering block 13 in the rotating process, so that the resistance of the buffering block 13, the sliding block 8 and the spring 12 needs to be overcome when the door rotates, the speed is reduced, and the impact on the door and a door frame is reduced; through arranging the liquid loop 6 in the buffer mechanism 4, when the door is opened, the liquid flow direction is that the liquid in the cavity II 26 flows into the cavity I19, the flow channel I18 and the pipe gap 27 (as shown in the arrow direction in fig. 5), when the door is closed, the liquid flow direction is that the liquid in the pipe gap 27, the flow channel I18 and the cavity I19 flows into the cavity II 26 (as shown in the arrow direction in fig. 3), therefore, no matter the door is opened or closed, the resistance of the liquid needs to be overcome in the rotating process of the door, the speed is further reduced, meanwhile, the resonance amplitude of each mechanical element in the device is reduced, the rotating stability of the driven rotating mechanism 5 is improved, the damage of the mechanical element is reduced, and the service life of the device is prolonged.

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.

Claims

1. The buffering hinge is characterized by comprising an upper shell (1) and a lower shell (2) which are detachably connected and a positioning block (3) arranged between the upper shell and the lower shell, wherein a cavity (7) is arranged in the positioning block (3), a buffering mechanism (4) and a driven rotating mechanism (5) connected with a door are arranged in the cavity (7), the buffering mechanism (4) is used for reducing the rotating speed of the driven rotating mechanism (5), a liquid loop (6) is also arranged in the buffering mechanism (4), and the liquid loop (6) is used for improving the rotating stability of the driven rotating mechanism (5);

the buffer mechanism (4) comprises a sliding block (8) sliding in the cavity (7), a blind hole (9) is formed in the sliding block (8), an inserting rod (10) is inserted in the blind hole (9) and an end cover (11) is installed, the other end of the inserting rod (10) penetrates through the end cover (11) and is installed on the inner wall of the cavity (7), a spring (12) is sleeved outside the inserting rod (10), two ends of the spring (12) are respectively connected with the inner wall of the cavity (7) and the end cover (11), a buffer block (13) is arranged at the bottom end of the sliding block (8), and the buffer block (13) abuts against the driven rotating mechanism (5);

the driven rotating mechanism (5) comprises a special-shaped cam (14) abutted to the buffer block (13), the tail of the special-shaped cam (14) is installed in a rotating pin (15), the special-shaped cam (14) is always abutted to the buffer block (13) in the rotating process, the lower end of the rotating pin (15) is rotatably connected into the cavity (7), the upper end of the rotating pin (15) penetrates through the positioning block (3) and rotates in a bushing (16), the bushing (16) is installed on the upper shell (1), and the side surface of the positioning block (3) is further provided with an installation hole (17) for installing the special-shaped cam (14);

the liquid loop (6) comprises a first flow channel (18) and a first cavity (19) which are arranged at the front end of an inserted rod (10) and communicated with each other, a partition part (20) is sleeved at the end part of the inserted rod (10) and connected with each other through a pin (28), a second flow channel (21) which penetrates through the bottom end of the partition part (20) is arranged at the bottom end of the partition part (10), a reversing element (22) is arranged in the partition part (20), a third flow channel (23) which is coaxially arranged with the second flow channel (21) and communicated with the second flow channel is arranged in the center of the reversing element (22), four protrusions (24) which are annularly arranged along the axis of the reversing element (22) are arranged on the reversing element (22), a fourth flow channel (25) is formed between every two protrusions (24), a second cavity (26) with the variable volume is formed between the partition part (20) and the bottom wall of a blind hole (9), liquid is filled in the second cavity (26), and a pipe gap (27) is formed between the upper end of the partition part (20) and the lower end of an end cover (11), the pipe gap (27) is coaxially arranged and communicated with the first flow passage (18) when the driven rotating mechanism (5) is not started.