CN214996944U

CN214996944U - Safety buffer door closing device

Info

Publication number: CN214996944U
Application number: CN202022635266.7U
Authority: CN
Inventors: 谢炜; 郭丰; 马杰雄
Original assignee: Arrow Home Group Co Ltd
Current assignee: Arrow Home Group Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-12-03
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a safe buffering door closing device, which comprises a first door fixing piece, a second door fixing piece, a connecting piece, a transmission mechanism and a damper, wherein the first door fixing piece is fixedly connected with the connecting piece, the connecting piece is provided with a containing cavity, the transmission mechanism and the damper are arranged in the containing cavity, and the connecting piece is movably connected with the second door fixing piece through the transmission mechanism; the second door fixing piece is connected with the damper through a transmission mechanism, and the transmission mechanism converts the rotary motion of the second door fixing piece into the linear motion of the damper so that the damper provides motion resistance for the second door fixing piece. By adopting the utility model, the motion resistance is provided when the door rotates, the hand is prevented from being hurt when the door is closed, and the noise is high; and automatic door closing is realized.

Description

Safety buffer door closing device

Technical Field

The utility model relates to a door closing device field, in particular to safe buffering door closing device.

Background

The existing link door or hinge door of the shower room is a screen door without buffer, and needs to be manually closed, which brings inconvenience to users. If the force is too large when the door is closed, the hands are easy to be hurt, the noise of closing the door is large, and the problem of low use safety exists. In addition, if ground level is not well treated, easy automatic acceleration closes the door, also can cause the clamp to hurt the hand equally, closes the big scheduling problem of door noise, has reduced user experience and has felt and use safety.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a safety buffer door closing device is provided, provides the motion resistance when the door rotates, presss from both sides when avoiding closing the door and hurts hand, noise are big.

The utility model aims to solve the technical problem still in, provide a safety buffer door closing device, realize automatic door closing.

In order to solve the technical problem, the utility model provides a safe buffering door closing device, which comprises a first door fixing piece, a second door fixing piece, a connecting piece, a transmission mechanism and a damper, wherein the first door fixing piece is fixedly connected with the connecting piece, the connecting piece is provided with an accommodating cavity, the transmission mechanism and the damper are arranged in the accommodating cavity, and the connecting piece is movably connected with the second door fixing piece through the transmission mechanism;

the second door fixing piece is connected with the damper through a transmission mechanism, and the transmission mechanism converts the rotary motion of the second door fixing piece into the linear motion of the damper so that the damper provides motion resistance for the second door fixing piece.

As an improvement of the scheme, the transmission mechanism comprises a hinge shaft, a connecting rod and a damping shaft, the hinge shaft, the connecting rod and the damping shaft are sequentially and movably connected, the damping shaft is connected with the damper, and the hinge shaft is connected with the second door fixing piece.

As an improvement of the scheme, the transmission mechanism further comprises a first pin and a second pin, the connecting rod is hinged with the hinge shaft through the first pin, and the connecting rod is hinged with the damping shaft through the second pin.

As an improvement of the scheme, the hinge shaft comprises a shaft body and a connecting block arranged on the shaft body, the connecting block is provided with a first pin hole, one end of the connecting rod is provided with a first through hole, and the first pin penetrates through the first pin hole and the first through hole.

As an improvement of the scheme, the number of the connecting blocks is two, the first pin holes are coaxially arranged, the first pin holes are parallel to the axis of the shaft body, and the connecting rod is arranged between the two connecting blocks.

As an improvement of the scheme, the damping shaft is provided with a second pin hole, the other end of the connecting rod is provided with a second through hole, and the second pin penetrates through the second pin hole and the second through hole.

As an improvement of the above scheme, the damping shaft is further provided with a notch, the second pin hole leads to the notch, the connecting rod is embedded in the notch, and the second pin penetrates through the second pin hole and the second through hole.

As an improvement of the above scheme, the damper comprises a damping body and a piston rod, wherein one end of the piston rod is movably connected with the damping body, and the other end of the piston rod is fixedly connected with the damping shaft;

the damper is a one-way damper.

As an improvement of the scheme, the damping body is provided with a sealing cover, the damper is sleeved with an elastic component, one end of the elastic component is abutted against the sealing cover, and the other end of the elastic component is abutted against the damping shaft.

As an improvement of the above scheme, the connecting member is provided with a through hole, the second door fixing member is provided with an axle groove, and the axle body passes through the through hole, extends to the outside of the connecting member, and is inserted into the axle groove, so that the axle body is fixedly connected with the second door fixing member.

Implement the utility model discloses, following beneficial effect has:

the utility model discloses safety buffering door closing device is equipped with drive mechanism and attenuator, and the attenuator is connected with the second solid door spare through drive mechanism to turn into the linear motion of attenuator with the rotary motion of the second solid door spare through drive mechanism, perhaps turn into the rotary motion of the second solid door spare with the linear motion of attenuator. The damper provides movement resistance for the rotation of the second door fixing piece, so that a buffering effect is achieved, the situations that hands are injured by clamping due to excessive force or the ground level is not well treated, the door closing noise is large and the like are avoided, and the user experience feeling and the use safety are improved.

Specifically, the damper is a one-way damper. When the door is opened, the rotary motion of the second door fixing piece is converted into the linear motion of the damper through the transmission mechanism, the piston rod of the damper contracts to move towards the damping body, at the moment, the damper does not generate damping force, namely, the door is opened without resistance, and the door can be smoothly opened. When closing the door, the second fixed door piece is rotatory to opposite direction, makes the piston rod move to direction in opposite directions under drive mechanism's drive, and at this moment, the attenuator produces damping force, and the rotary motion of the second fixed door piece receives the resistance, and rotatory kinetic energy is absorbed for the door is slowly closed, plays the cushioning effect, avoids exerting oneself excessively or because of ground level does not handle the good condition such as the hand is hindered to the clamp that appears, the door noise is big, thereby has improved user experience and has felt and the safety in utilization.

Further, the damper is sleeved with an elastic component. When the door is opened, the elastic component is compressed under the action of the transmission mechanism. When the door is closed, the elastic part releases the compressed and stored kinetic energy and acts on the transmission mechanism to provide the second door fixing piece with rotary kinetic energy, so that the effect of automatically closing the door is realized. Meanwhile, due to the damping effect of the damper, the second door fixing piece can only rotate slowly even under the action of the elastic part, so that the door can only be closed slowly and automatically, the buffering effect is achieved, the situations that hands are injured by clamping, the noise of closing the door is high and the like due to excessive force or the fact that the ground level is not well processed are avoided, and the user experience feeling and the use safety are improved.

Drawings

Fig. 1 is a schematic structural view of the safety buffer door closing device of the present invention;

FIG. 2 is an exploded view of FIG. 1;

FIG. 3 is a cross-sectional view taken along A-A of FIG. 1;

FIG. 4 is a cross-sectional view of the second door securing member of FIG. 3 after being rotated clockwise;

fig. 5 is an exploded view of the transmission mechanism of the present invention;

FIG. 6 is a force diagram of the one-way damper of the present invention during compression damping;

fig. 7 is a force state diagram of the one-way damper of the present invention during stretching damping.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings. Only this statement, the utility model discloses the upper and lower, left and right, preceding, back, inside and outside etc. position words that appear or will appear in the text only use the utility model discloses an attached drawing is the benchmark, and it is not right the utility model discloses a concrete restriction.

Referring to fig. 1-5, the utility model discloses a full buffering door closer, including first solid door spare 1, the solid door spare 2 of second, connecting piece 3, drive mechanism and attenuator 9, first solid door spare 1 and 3 fixed connection of connecting piece, connecting piece 3 is equipped with and holds chamber 31, drive mechanism and attenuator 9 are located and are held in the chamber 31, connecting piece 3 passes through drive mechanism and the solid door spare 2 swing joint of second. The first door fixing piece 1 is fixedly arranged on the door frame, and the second door fixing piece 2 is fixedly arranged on the door body.

The second door fixing piece 2 is connected with the damper 9 through a transmission mechanism, and the transmission mechanism converts the rotary motion of the second door fixing piece 2 into the linear motion of the damper 9, so that the damper 9 provides motion resistance for the second door fixing piece 2.

As shown in fig. 2 to 5, the transmission mechanism includes a hinge shaft 4, a connecting rod 5 and a damping shaft 6, the hinge shaft 4, the connecting rod 5 and the damping shaft 6 are sequentially and movably connected, the damping shaft 6 is connected with a damper 9, and the hinge shaft 4 is connected with the second door fixing member 2. The second door fixing piece rotates and drives the hinge shaft to rotate, so that the connecting rod moves and pushes the damping shaft, and the damper is pushed.

Specifically, the transmission mechanism further comprises a first pin 7 and a second pin 8, the connecting rod 5 is hinged to the hinge shaft 4 through the first pin 7, and the connecting rod 5 is hinged to the damping shaft 6 through the second pin 8. The hinge shaft 4 comprises a shaft body 41 and a connecting block 42 arranged on the shaft body 41, the connecting block 42 is provided with a first pin hole 43, one end of the connecting rod 5 is provided with a first through hole 51, and the first pin 7 penetrates through the first pin hole 43 and the first through hole 51. The first pin connects the hinge shaft with the link, and the link is rotatable about the first pin. When the second door fixing piece drives the hinge shaft to rotate, the shaft body rotates to drive the connecting block to rotate around the shaft body, and the connecting block pushes the connecting rod to move through the first pin.

Preferably, the number of the connecting blocks 42 is two, the first pin holes 43 are coaxially arranged, the first pin holes 43 are parallel to the axis of the shaft body 41, and the connecting rod 5 is arranged between the two connecting blocks 42. The two connecting blocks are arranged in parallel, the first pin holes are coaxially arranged, and the first pin penetrates through the first pin hole, the first through hole and the second first pin hole in sequence. The arrangement of the two connecting blocks ensures that the connecting rod is firmly connected with the hinge shaft through the first pin, and ensures the transmission reliability of the hinge shaft.

As shown in fig. 5, the damping shaft 6 is provided with a second pin hole 61, the other end of the connecting rod 5 is provided with a second through hole 52, and the second pin 8 is inserted into the second pin hole 61 and the second through hole 52. The second pin connects the damping shaft with the link, and the link is rotatable about the second pin. The connecting rod moves and transmits to the damping shaft through the second pin, so that the damping shaft is driven.

Preferably, the damping shaft 6 is further provided with a notch 62, the second pin hole 61 opens into the notch 62, the connecting rod 5 is embedded in the notch 62, and the second pin 8 is inserted in the second pin hole 61 and the second through hole 52. Specifically, the second pin is arranged on the second pin hole and the second through hole in a penetrating mode in sequence. The arrangement of the notch ensures that the connecting rod is firmly connected with the damping shaft through the second pin, and ensures the transmission reliability of the connecting rod.

As shown in fig. 3-4 and 6-7, the damper 9 includes a damping body 91 and a piston rod 92, wherein one end of the piston rod 92 is movably connected to the damping body 91, and the other end is fixedly connected to the damping shaft 6. Specifically, the damper 9 is a one-way damper. The working principle of the one-way damper is as follows: as shown in fig. 6, no resistance is generated during compression damping, i.e., when a force F1 is applied to the piston rod 62 in the direction of the damping body 61. As shown in fig. 7, when the damping force is applied, i.e., when the piston rod 62 is applied with a force F2 in the opposite direction of the damping body 61, a corresponding resistance force is generated to absorb the kinetic energy of the tensile force. The one-way damper is a prior art, and its structure is not described in detail here.

When the door is opened, the rotating motion of the second door fixing piece 2 is converted into the linear motion of the damper 9 through the transmission mechanism, as shown in fig. 3, the second door fixing piece 2 rotates clockwise to drive the hinge shaft 4 to rotate clockwise, the connecting rod 5 is pushed to move leftwards, and the damping shaft 6 is pushed to move leftwards at the same time, so that the piston rod 92 of the damper 9 is contracted to move towards the damping body 91, at this time, the damper does not generate damping force, namely, the door is opened without resistance, and the door can be opened smoothly. When closing the door, as shown in fig. 4, second fixed door 2 anticlockwise rotates, drive hinge pin 4 anticlockwise rotation, pulling connecting rod 5 moves to the right, pulling damping shaft 6 moves to the right simultaneously, drive piston rod 92 and extend, at this moment, the attenuator produces damping force, the rotary motion of second fixed door receives the resistance, rotatory kinetic energy is absorbed, make the door slowly close, play the cushioning effect, avoid exerting oneself excessively or because of ground level does not handle the good condition that appears pressing from both sides wounded the hand, the noise of closing the door is big, thereby user experience sense and safety in utilization have been improved.

Further, as shown in fig. 3 to 4, the damper body 91 is provided with a cover 93, the damper 9 is externally provided with an elastic member 10, one end of the elastic member 10 abuts against the cover 93, and the other end abuts against the damper shaft 6. The elastic member 10 is a spring. When the door is opened, the elastic member 10 is compressed by the transmission mechanism, that is, the elastic member 10 is compressed by the damping shaft 6. When the door is closed, the elastic part 10 releases the compressed and stored kinetic energy and acts on the transmission mechanism, namely acts on the damping shaft 6, so that the second door fixing piece 2 is provided with the rotation kinetic energy, and the effect of automatic door closing is realized. Meanwhile, due to the damping effect of the damper, the second door fixing piece can only rotate slowly even under the action of the elastic part, so that the door can only be closed slowly and automatically, the buffering effect is achieved, the situations that hands are injured by clamping, the noise of closing the door is high and the like due to excessive force or the fact that the ground level is not well processed are avoided, and the user experience feeling and the use safety are improved.

Specifically, as shown in fig. 2 to 4, the connecting member 3 is provided with a through hole 32, the second door fixing member 2 is provided with a shaft groove 21, and the shaft body 41 extends out of the connecting member 3 through the through hole 32 and is inserted into the shaft groove 21, so that the shaft body 41 is fixedly connected with the second door fixing member 2. The shaft body 41 extends out of the connecting piece 3 from the cavity 31 through the through hole 32 and is inserted into the shaft groove 21 of the second door fixing piece 2. Specifically, two through holes 32 are provided, and are symmetrically disposed at the upper and lower ends of the connecting member 3. The number of the shaft grooves 21 is two, and the through holes 32 and the shaft grooves 21 are arranged in a pairwise corresponding mode. The two ends of the shaft body are respectively connected with the shaft grooves 21 through the through holes 32. The connection of the hinge axis 4 to the second door mount 2 is achieved by the through-opening 32 and the axis groove 21.

Preferably, in order to ensure that the second door fixing element can accurately drive the hinge shaft to rotate when rotating, that is, the second door fixing element and the hinge shaft need to rotate synchronously, the shaft groove 21 is provided with a first detent (not shown), the shaft body 41 is provided with a second detent (not shown), and the first detent and the second detent are connected to fix the shaft groove and the shaft body relatively in the circumferential direction. The first block is matched with the second block. The arrangement of the first clamping position and the second clamping position enables the shaft groove to be relatively fixed with the circumference of the hinge shaft, so that the second door fixing piece can drive the hinge shaft to rotate, namely, to rotate synchronously.

The utility model discloses safety buffering door closer's theory of operation is: as shown in fig. 3-4, when the door is opened, the second door fixing member 2 drives the hinge shaft 4 to rotate clockwise, the hinge shaft 4 drives the link 5 to move leftward, and the link 5 drives the damping shaft 6 to move leftward, so that the piston rod 92 contracts and moves toward the damping body 91, compression damping is realized, but no resistance is generated, and when the door is opened, the door is smoothly opened without being subjected to the resistance of the one-way damper, but the elastic member 10 is compressed. When the door is closed, the second door fixing piece 2 rotates anticlockwise, the hinge shaft 4 drives the connecting rod 5 to move rightwards, the connecting rod 5 drives the damping shaft 6 to move rightwards, the piston rod 92 extends, and meanwhile, as the elastic component 10 needs to restore the original state and generates right thrust for the damping shaft 6, the second door fixing piece 2 can realize automatic anticlockwise rotation under the action of the elastic component 10, namely, the door can be automatically closed. Because of the tensile damping, a resistance is generated, the second fixing piece can only rotate slowly, and the door is closed automatically and slowly.

Implement the utility model discloses, following beneficial effect has:

In summary, the utility model provides a safety buffer door closing device, which provides motion resistance when the door rotates, avoids hands from being hurt and has large noise when the door is closed; and automatic door closing is realized.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present invention.

Claims

1. A safety buffer door closing device is characterized by comprising a first door fixing piece, a second door fixing piece, a connecting piece, a transmission mechanism and a damper, wherein the first door fixing piece is fixedly connected with the connecting piece, the connecting piece is provided with a containing cavity, the transmission mechanism and the damper are arranged in the containing cavity, and the connecting piece is movably connected with the second door fixing piece through the transmission mechanism;

2. The safety-buffering door closer according to claim 1, wherein the transmission mechanism comprises a hinge shaft, a connecting rod and a damping shaft, the hinge shaft, the connecting rod and the damping shaft are sequentially and movably connected, the damping shaft is connected with the damper, and the hinge shaft is connected with the second door fixing piece.

3. The safety-cushioned door closer assembly of claim 2, wherein the actuator further comprises a first pin and a second pin, the link being pivotally connected to the hinge shaft by the first pin and the link being pivotally connected to the damper shaft by the second pin.

4. The safety-buffering door closing device according to claim 3, wherein the hinge shaft comprises a shaft body and a connecting block arranged on the shaft body, the connecting block is provided with a first pin hole, one end of the connecting block is provided with a first through hole, and the first pin is arranged on the first pin hole and the first through hole in a penetrating manner.

5. The safety-buffering door closing device according to claim 4, wherein the number of the connecting blocks is two, the first pin holes are coaxially arranged, the first pin holes are parallel to the axis of the shaft body, and the connecting rod is arranged between the two connecting blocks.

6. The safety-buffering door closing device according to claim 4, wherein the damping shaft is provided with a second pin hole, the other end of the connecting rod is provided with a second through hole, and the second pin is inserted into the second pin hole and the second through hole.

7. The safety-buffering door closing device according to claim 6, wherein the damping shaft further has a notch, the second pin hole opens into the notch, the connecting rod is embedded in the notch, and the second pin is inserted into the second pin hole and the second through hole.

8. The safety buffer door closing device according to claim 1, wherein the damper comprises a damping body and a piston rod, one end of the piston rod is movably connected with the damping body, and the other end of the piston rod is fixedly connected with the damping shaft;

the damper is a one-way damper.

9. The safety-cushioned door closer assembly of claim 8, wherein the damper body has a cover, and the damper housing has an elastic member having one end abutting the cover and the other end abutting the damper shaft.

10. The safety-cushioned door closer assembly of claim 4 wherein the connecting member has a through-hole, and the second door-securing member has an axial slot, and wherein the shaft extends through the through-hole to the outside of the connecting member and is received in the axial slot to fixedly connect the shaft to the second door-securing member.