CN106121431B - A Combined Buffer System for Doors - Google Patents

Abstract

The invention discloses a combined buffering system of a door, which is characterized in that: comprises a speed reducer (1) and a buffer (2); when the buffer (2) moves along with the door to the direction of the speed reducer (1), the speed reducer column (24) touches the speed reducing hook (12) and then reduces the speed of the door under the action of the first damping tube (11), and then the buffer column (13) touches the buffer hook (23) and then enables the door to further buffer under the action of the second damping tube (21) and the tension spring (22) until the door stops moving.

Description

A Combined Buffer System for Doors

technical field

The invention relates to a combined buffer system for doors.

Background technique

Existing door buffers are unsatisfactory for doors over 30kg, because the size of the damping tube (hydraulic or pneumatic) is limited by the door frame, and the damping force of a single damping tube is insufficient, and the buffering effect cannot be achieved for heavy doors over 30kg; heavy The door also often bumps against the edge of the door at normal speeds, which is neither safe nor easy to cause noise. In order to increase the damping strength, there are also buffers on the market that use two damping tubes side by side to increase the damping force, but at the same time, the strength of the extension spring is also increased. It is very laborious for people to pull the door out by hand, and because of the damping tube Due to manufacturing errors and use wear, two damping tubes are easily unbalanced when used side by side, and sometimes only one actually works, resulting in unstable cushioning.

Contents of the invention

The main purpose of the present invention is to overcome the deficiencies of the prior art. The present invention provides a door combined buffer system, which can make the buffer effect more stable, reduce the noise of the door, and also make the operation of pulling the door easier and more convenient;

In order to achieve the above object, the combined buffer system of the door of the present invention is characterized in that it includes a speed reducer and a buffer, and the speed reducer includes a speed reducer housing, a first damping pipe, a speed reduction hook and a speed reduction device fixed on the speed reduction device. One end of the first damper tube is against the decelerator housing, and the other end is connected with the deceleration hook; the buffer includes a buffer housing, a second damper tube, a tension spring, a buffer hook and The deceleration column fixed on the buffer shell, the second damping tube is arranged in parallel with the tension spring, and one end of them is respectively fixedly connected with the buffer shell, and the other end is respectively connected with the buffer hook; When the door moves towards the speed reducer, the speed reduction column will reduce the door speed under the action of the first damping tube after the speed reduction column touches the speed reduction hook, and then the second damping tube and the extension spring Under the action, the door is further buffered until it stops moving;

Preferably, it also includes a guide rail and a hanging door bracket, the speed reducer is fixed above the guide rail with screws, and the buffer is fixed on the hanging door bracket. Described door is installed on the hanging door support. Above one end of the buffer is also provided with a pulley block, and the pulley block is installed on the guide rail to drive the sliding of the door on the guide rail;

As a preference, a slide rail or a chute is provided on the decelerator, and the deceleration hook moves left and right on the decelerator through the slide rail or chute, and then squeezes or stretches the first damping tube;

Preferably, the buffer is provided with a slide rail or a chute, and the buffer hook moves left and right in the buffer through the slide rail or chute, and then squeezes or stretches the second damping tube and the extension spring;

Preferably, the buffer column is arranged in front of the deceleration hook; the deceleration column is arranged in front of the buffer hook;

In this way, the present invention adopts the joint use of the speed reducer and the buffer, and the speed reducer can greatly reduce the speed of the door so as to reduce the burden on the buffer. There is no damping effect, so that the tension spring does not need excessive tension, and the tension of the tension spring is reduced to make it easier and more convenient for people to pull the door. And when the door is pushed to the door at a slower speed, since the damping force of the second damping tube will also decrease with the speed at a slow speed, it ensures that the extension spring pulls the door to the door at an appropriate speed, improving the door cushioning effect and Protect the door and door frame while reducing the noise of the door;

Since the two damping tubes are used independently and cooperate with each other, the damping force will not be unbalanced due to manufacturing errors and wear, so that the buffering effect is more stable.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those of ordinary skill in the art, other drawings can also be obtained according to the structures shown in these drawings without creative work;

Figure 1 is a structural schematic diagram of the speed reducer with one side shell removed;

Figure 2 is a schematic diagram of the structure of the buffer with one side of the shell removed;

Fig. 3 is the three-dimensional schematic diagram of the installation structure of the combined buffer system of the door;

Fig. 4 is a schematic plan view of the installation structure of the combined buffer system of the door;

Fig. 5 is the partially enlarged schematic view of the I place of Fig. 4;

The realization of the purpose of the present invention, functional characteristics and advantages will be further described in conjunction with the embodiments and with reference to the accompanying drawings.

detailed description

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative work fall within the protection scope of the present invention;

It should be noted that all directional indications (such as up, down, left, right, front, back...) in the embodiments of the present invention are only used to explain the relationship between the components in a certain posture (as shown in the figure). Relative positional relationship, movement conditions, etc., if the specific posture changes, the directional indication will also change accordingly;

In addition, when the present invention only describes the structure and composition scheme related to the solution of the technical problem, although there is no description below for the known necessary structure, parts and connection relationship, it does not mean that the technical scheme does not exist, let alone should be insufficient grounds for disclosure;

Referring to FIG. 1 , it is a schematic structural diagram of a speed reducer 1 with one side of the casing removed. The speed reducer 1 is composed of a speed reducer casing 14 , a first damping pipe 11 , a speed reduction hook 12 and a buffer column 13 fixed on the speed reducer casing 14 . One end of the first damping tube 11 is in contact with the reducer casing 14, or it can be fixedly connected with the end of the reducer casing 14 by means such as screws or buckles according to actual needs. The other end is connected with the deceleration hook 12. The speed reducer shell 14 of the speed reducer 1 is provided with a slide rail or a chute, and the speed reduction hook 12 is installed in the slide rail or the chute, so as to realize the left and right movement in the speed reducer 1, and then squeeze or stretch the first A damping tube 11. In a preferred solution, the buffer column 13 is arranged in front of the deceleration hook 12 . The buffer column 13 can be integrally formed with the reducer casing 14, or it can be fixedly installed on the reducer casing 14 later;

Referring to FIG. 2 , it is a schematic structural diagram of the buffer 2 with one side shell removed. The buffer 2 is composed of a buffer housing 25 , a second damping tube 21 , a tension spring 22 , a buffer hook 23 and a deceleration column 24 fixed on the buffer housing 25 . In a preferred solution, the second damping tube 21 is arranged parallel to the extension spring 22, and one end of them is fixedly connected to the buffer housing 25, and the other end is respectively connected to the buffer hook 23. The specific fixed connection method can be selected according to actual needs. The buffer shell 25 of the buffer 2 is provided with a slide rail or a chute, and the buffer hook 23 is installed on the slide rail or the chute to realize the left and right movement in the buffer 2, and then squeeze or stretch the second damping tube 21 and extension spring 22. In the preferred solution, one or both ends of the buffer 2 are also provided with a pulley block 26, and the pulley block 26 is used to be installed on the guide rail to drive the sliding of the door on the guide rail;

Referring to Figures 3 to 5, the door combined buffer system consists of a speed reducer 1 and a buffer 2, and in actual installation and use, it also includes a guide rail 3, a hanging door bracket 5, a door 4 and a mullion 6. Wherein, the speed reducer 1 is fixed on the top of the guide rail 3 by screws or other methods. Door 4 is installed on the hanging door support 5. And buffer 2 is fixed on the hanging door support 5 and moves with door 4. When the buffer 2 moves in the direction of the speed reducer 1 with the door, the speed reduction post 24 touches the speed reduction hook 12 to reduce the speed of the door under the action of the first damping tube 11, and then the buffer post 13 touches the buffer hook 23 in the first step. Under the action of the second damping tube 21 and the extension spring 22, the door is further buffered until it stops moving;

The more specific working principle of the combined buffer system of the door is: when the door 4 is pushed to the mullion 6 of the door along the guide rail 3, the deceleration column 24 of the buffer 2 on the hanging door bracket 5 hits the deceleration hook 12 to increase the door speed. The amplitude decreases, and then the buffer column 13 contacts the buffer hook 23 simultaneously, and the door 4 reaches the mullion 6 of the door at an appropriate speed under the action of the extension spring 22 and the second damping tube 21 . When the door 4 is pulled outwards with the hand, the buffer hook 23 and the deceleration hook 12 return to the working state along with the movement of the door 4, and get back to the mullion 6 places for the door 4 to prepare for buffering next time. In the combined buffer system of the door of the present invention, the speed reducer 1 can greatly reduce the speed of the door so as to reduce the burden of the buffer 2. The first damping pipe 11 contained in the speed reducer 1 has a damping effect in the front part of the stroke and has a damping effect in the rear stroke. There is no damping effect, so that extension spring 22 does not need excessive pulling force, and it is easier and more convenient for people to pull the door after extension spring 22 pulling force is reduced. And when the door was pushed toward the mullion 6 at a slower speed, because the second damping tube 21 would also reduce the damping force with the speed at a slow speed, it was ensured that the extension spring 22 could pull the door 4 to the mullion 6. This system can easily realize the buffering of wooden doors, bathroom glass doors and other heavy doors or similar items;

Parts or installation positional relationships not described above can be implemented according to what is expressed or suggested in Figures 1 to 5 . And the above is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. Under the inventive concept of the present invention, the equivalent structural transformation made by using the description of the present invention and the contents of the accompanying drawings, or directly/indirectly used in Other relevant technical fields are included in the patent protection scope of the present invention.

Claims (7)

1. A combined buffer system for doors, characterized in that it includes a speed reducer (1) and a buffer (2), and the speed reducer (1) includes a speed reducer housing (14), a first damping tube ( 11), the deceleration hook (12) and the buffer column (13) fixed on the decelerator casing (14), one end of the first damping tube (11) is against the decelerator casing (14), and the other end It is connected with the deceleration hook (12); the buffer (2) includes the buffer shell (25), the second damping tube (21), the extension spring (22), the buffer hook (23) and the buffer shell ( 25) on the deceleration column (24), the second damping tube (21) is arranged in parallel with the tension spring (22), and one end of them is respectively fixedly connected with the buffer shell (25), and the other end is respectively connected with the said The buffer hook (23) is connected; when the buffer (2) moves toward the speed reducer (1) with the door, the speed reduction column (24) will be in the first damping tube ( 11) The speed of the door is reduced under the action, and then the buffer column (13) touches the buffer hook (23), and the door is further buffered until it stops moving under the action of the second damping tube (21) and the extension spring (22). 2. The door combined buffer system according to claim 1, characterized in that: it also includes a guide rail (3) and a hanging door bracket (5), and the speed reducer (1) is fixed above the guide rail (3) with screws , the buffer (2) is fixed on the hanging door bracket (5). 3. The door combined buffer system according to claim 2, characterized in that: the door is installed on the hanging door bracket (5). 4. The door combined buffer system according to any one of claims 2 or 3, characterized in that: a pulley block (26) is provided above one end of the buffer (2), and the pulley block (26) is installed on the The guide rail (3) is used to drive the sliding of the door on the guide rail (3). 5. The door combined buffer system according to any one of claims 1 or 3, characterized in that: the speed reducer (1) is provided with slide rails or chute, and the speed reduction hook (12) passes through the The sliding rail or the chute moves left and right in the speed reducer (1), and then squeezes or stretches the first damping pipe (11). 6. The door combined buffer system according to any one of claims 1 or 3, characterized in that: the buffer (2) is provided with slide rails or slide grooves, and the buffer hook (23) passes through the slide rails Or the chute moves left and right on the buffer (2), thereby squeezing or stretching the second damping tube (21) and the extension spring (22). 7. The door combined buffer system according to any one of claims 1 or 3, characterized in that: the buffer column (13) is arranged in front of the speed reduction hook (12); the speed reduction column (24 ) is located in front of the buffer hook (23).