CN215761115U

CN215761115U - Door closer with two-way buffering of switch door resets

Info

Publication number: CN215761115U
Application number: CN202121120206.XU
Authority: CN
Inventors: 陈明开
Original assignee: Guangdong Lianshun Precision Manufacturing Co ltd
Current assignee: Guangdong Lianshun Precision Manufacturing Co ltd
Priority date: 2020-09-21
Filing date: 2021-05-24
Publication date: 2022-02-08
Anticipated expiration: 2031-05-24
Also published as: CN113374371A

Abstract

The utility model provides a door closer with two-way buffering of switch door resets, its includes drain pan and face guard, forms spacing district between drain pan and the face guard, by supreme range upon range of installing down slide and upper slide in proper order down in the spacing district, a swing arm is articulated through the hinge hole on swing seat and the drain pan, and the swing arm is around this hinge hole rotation: the bottom case is provided with a bottom box, the bottom box is provided with a bottom sliding plate, the bottom box is provided with a bottom box, the bottom box is provided with a swinging seat, and the bottom sliding plate is provided with a lower baffle. The utility model has the beneficial effects that: this door opener and cabinet body installation back can realize pressing down the bounce-back formula and open, consequently need not to install parts such as door handle on the cabinet door, are favorable to keeping the neat and artistic of the cabinet body, avoid children and handle to take place the potential safety hazard that collides with and cause, promote its security.

Description

Door closer with two-way buffering of switch door resets

Technical Field

The utility model relates to a hardware fitting, in particular to a door closer with bidirectional buffering and resetting functions for opening and closing a door.

Background

Various furniture with vertical hinged doors are necessary for common families, the vertical hinged door is generally connected with a cabinet body of the furniture through a hinge, the vertical hinged door is opened or closed through a handle on a sliding door or a component with a similar function by a user when the vertical hinged door is opened or closed, the vertical hinged door of the furniture often collides the head of a child in the family because of no handle, and the vertical hinged door is inconvenient to open or close by pushing and pulling on the other hand. Therefore, avoiding the drawbacks of the prior art, achieving a more convenient opening or closing of the side hung door of a piece of furniture remains a problem to be solved.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a door closer with a bidirectional buffering reset function for opening and closing a door, which has the advantages of simple structure and convenience in use, and can realize automatic rebound opening and buffering closing of a cabinet door.

The utility model provides a door closer with two-way buffering of switch door resets which characterized in that: it includes drain pan and face guard, forms spacing district between drain pan and the face guard, by supreme range upon range of the lower slide and the upper slide of installing in proper order down in the spacing district, a swing arm is articulated through the hinge hole on swing seat and the drain pan, and the swing arm rotates around this hinge hole:

a first tension spring is arranged between the lower sliding plate and the bottom box, and the first tension spring pulls the lower sliding plate to move towards the direction deviating from the direction of the swinging seat all the time;

a second tension spring is arranged between the bottom shell and the swing seat, and the second tension spring pulls the swing seat to rotate towards the opening direction of the swing arm all the time;

the lower sliding plate is provided with a lower baffle plate, the upper sliding plate is provided with an upper baffle plate, a pull rod penetrates through the upper baffle plate and then is inserted into the lower baffle plate, the front end of the pull rod is provided with a limiting plate which is pressed against the upper baffle plate, the rear end of the pull rod is provided with a limiting stop post, the surface of the pull rod is sleeved with a third spring, one end of the third spring is pressed against the upper baffle plate, the other end of the third spring is pressed against the limiting stop post, and the third spring always pulls the upper sliding plate and the lower sliding plate to move relatively;

the tail part of the bottom shell is provided with a release buckle, the release buckle is hung on or separated from the limiting groove on the lower sliding plate and is linked with a trigger buckle protruding out of the lower end surface of the bottom shell, and when the trigger buckle is driven to move, the trigger buckle drives the release buckle to swing and release the limiting groove;

spacing district in be provided with the articulated shaft, the articulated shaft is articulated with the one end of actuating arm, the actuating arm other end is articulated with the upper slide plate, the actuating arm on be provided with first actuation groove and second actuation groove, correspondingly ground: the swing seat is provided with a first driving column and a second driving column, and the first driving column and the second driving column respectively interact with the first driving groove and the second driving groove to force the driving arm to swing;

and a buffer cylinder is arranged between the lower sliding plate and the upper sliding plate and is of a compression buffer type.

The bottom shell is internally provided with an inwards concave guide area, and correspondingly, the lower sliding plate is arranged in the guide area in a sliding manner.

The swing seat is provided with a tension spring buckle, and one end of the second tension spring is hung and buckled on the tension spring buckle.

The swing seat is provided with a tension spring groove, and the second tension spring passes through the tension spring groove to be buckled with the tension spring buckle.

The first driving groove is an inner groove arranged on the driving arm, the first driving column is located in the inner groove to slide, the side wall of the driving arm is provided with a first driving surface and a second driving surface which are expanded towards the outer direction of the groove, and the first driving surface is connected with the second driving surface through a third driving surface which is protruded towards the inner direction of the groove.

The second driving groove is separated from the first driving groove through a reset block, a planar first driving surface is arranged on one side, facing the second driving groove, of the reset block, and an arc-shaped second driving surface is arranged on one side, facing the first driving groove, of the reset block.

The tension of the second tension spring is greater than that of the first tension spring.

The release buckle is hinged on the bottom shell in a swinging mode, a driving rod is arranged at the lower portion of the release buckle and abuts against and presses the trigger buckle, and the release buckle is driven to swing when retracting inwards.

The upper end of the release buckle is provided with a drive buckle, a push spring is arranged between the drive buckle and the bottom shell, and the push spring always pushes the trigger buckle to swing towards the direction of the limiting groove and to be buckled with the hanging buckle.

The utility model has the beneficial effects that: 1. simple structure, low production cost and improved market competitiveness. 2. This door opener and cabinet body installation back can realize pressing down the bounce-back formula and open, consequently need not to install parts such as door handle on the cabinet door, are favorable to keeping the neat and artistic of the cabinet body, avoid children and handle to take place the potential safety hazard that collides with and cause, promote its security. 3. When the cabinet door is opened and closed to the extreme position, all have buffer function to avoid the cabinet door and the cabinet body, bump and produce the noise between cabinet door and the spacing part, promote its operation feel.

Drawings

Fig. 1, 2 and 3 are diagrams illustrating the installation and use effects of the present invention and a cabinet body.

FIG. 4 is a structural assembly diagram of the present invention.

Fig. 5 and 6 are assembly views of the structure of the utility model.

Fig. 7 is a rear assembly view of a visor according to the present invention.

Fig. 8-13 are schematic views of the opening process of the door closer according to the present invention.

Fig. 14-16 are schematic views illustrating a closing process of the door closer according to the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings. The utility model provides a door closer with two-way buffering of switch door resets which characterized in that: it includes drain pan 1 and face guard 2, forms spacing district between drain pan 1 and the face guard 2, by supreme range upon range of lower slide 3 and the upper slide 4 of installing in proper order down in the spacing district, and a swing arm 5 is articulated through hinge hole 11 on swing seat 51 and the drain pan 1, and swing arm 5 centers on this hinge hole 11 and rotates:

a first tension spring 6 is arranged between the lower sliding plate 3 and the bottom box, and the first tension spring 6 pulls the lower sliding plate 3 to move towards the direction deviating from the swinging seat 51 all the time;

a second tension spring 7 is arranged between the bottom shell 1 and the swing seat 51, and the second tension spring 7 pulls the swing seat 51 to rotate towards the opening direction of the swing arm 5 all the time;

the lower sliding plate 3 is provided with a lower baffle 32, the upper sliding plate 4 is provided with an upper baffle 44, a pull rod 45 penetrates through the upper baffle 44 and then is inserted into the lower baffle 32, the front end of the pull rod 45 is provided with a limiting plate 46 which abuts against the upper baffle 44, the rear end of the pull rod 45 is provided with a limiting stop pillar 47, the surface of the pull rod 45 is sleeved with a third spring 8, one end of the third spring 8 abuts against the upper baffle 44, the other end of the third spring abuts against the limiting stop pillar 47, and the third spring 8 always pulls the upper sliding plate 4 and the lower sliding plate 3 to move relatively all the time through the pull rod 45;

the tail part of the bottom shell 1 is provided with a release buckle 9, the release buckle 9 is buckled with or separated from the limiting groove 36 on the lower sliding plate 3, the release buckle 9 is linked with a trigger buckle 91 protruding out of the lower end surface of the bottom shell 1, and when the trigger buckle 91 is driven to move, the trigger buckle 91 drives the release buckle 9 to swing to be tripped from the limiting groove 36;

the limiting area is provided with a hinge shaft 321, the hinge shaft 321 is hinged with one end of the driving arm 31, the other end of the driving arm 31 is hinged with the upper sliding plate 4, the driving arm 31 is provided with a first driving groove 33 and a second driving groove 34, correspondingly: the swing base 51 is provided with a first driving column 52 and a second driving column 53, and the first driving column 52 and the second driving column 53 respectively interact with the first driving groove 33 and the second driving groove 34 to force the driving arm 31 to swing;

a buffer cylinder 81 is arranged between the lower sliding plate 3 and the upper sliding plate 4, and the buffer cylinder 81 is of a compression buffer type.

The bottom shell 1 is provided with an inwardly concave guide area 12, and correspondingly, the lower sliding plate 3 is slidably mounted in the guide area.

The swing seat 51 is provided with a tension spring buckle 54, and one end of the second tension spring 7 is buckled on the tension spring buckle 54.

The swing seat 51 is provided with a tension spring slot 55, and the second tension spring passes through the tension spring slot 55 to be hung and buckled with the tension spring buckle 54.

The first driving groove 33 is an inner groove provided in the driving arm 31, the first driving post 52 is slidably located in the inner groove, the side wall of the driving arm 31 is provided with a first driving surface 311 and a second driving surface 312 which are expanded outward of the groove, and the first driving surface 311 and the second driving surface 312 are connected by a third driving surface 313 which is protruded inward of the groove.

The second drive groove 34 is separated from the first drive groove 33 by a reset block 35, and the reset block 35 is provided with a planar first drive surface 351 facing the second drive groove and an arc-shaped second drive surface 352 facing the first drive groove.

The tension of the second tension spring 7 is greater than that of the first tension spring 6.

The release buckle 9 is hinged on the bottom case 1 in a swinging manner, a driving rod 92 is arranged at the lower part of the release buckle 9 and is pressed against the trigger buckle 91, and the release buckle 9 drives the trigger buckle 91 to swing when retracting inwards.

The upper end of the release buckle 9 is provided with a driving buckle 93, a push spring 14 is arranged between the driving buckle 93 and the bottom shell, and the push spring 14 always pushes the trigger buckle 91 to swing towards the direction of the limit groove 36 to be hung with the limit groove.

The working principle is as follows: as shown in fig. 1, in the structure of the present invention, when the door-concealed cabinet is installed, the main body of the door opener is fixed to the cabinet 21, and the swing arm 5 of the door opener is installed on the cabinet door 22 through the guide rail 23 at the head thereof.

As shown in fig. 3, when the cabinet door is in an open state, the swing arm outwards supports the cabinet door, and since the swing arm is hinged and fixed on the main body of the door opener through the swing seat and pulled by the second tension spring 7, the tension of the tension spring can play a role in positioning the swing arm, so that the swing arm can keep the open state of the cabinet door, and the cabinet door is prevented from being closed under the operation of non-external force.

As shown in fig. 8-9, when the cabinet door needs to be opened, the cabinet door is pressed inward, the trigger button 91 is pressed by the cabinet door, and the trigger button moves inward and simultaneously lifts up the release button 9 to force the front end of the release button to swing upward and separate from the limiting groove 41 on the lower sliding plate 3. In order to make the limiting groove 41 have stronger supporting force, a reinforcing plate 411 is arranged at the position of the limiting groove 41 of the lower sliding plate, the reinforcing plate 411 is fixedly connected with the lower sliding plate, and the limiting groove 41 is arranged on the reinforcing plate 411.

As shown in fig. 10, after the release buckle 9 is separated from the limiting groove 41, the lower slider moves rightwards under the pulling of the third spring 8, and meanwhile, the upper slider also loses the tension action of the third spring, the lower slider and the upper slider are pulled reversely by the tension applied to the swing seat by the second tension spring, the upper slider and the lower slider are forced to move rightwards simultaneously by the interaction of the first driving groove on the driving arm and the first driving post on the swing seat, the swing arm also swings outwards under the pulling of the second tension spring, the swing arm pushes the cabinet door outwards to open, and during the opening process of the cabinet door, the lower slider pulls the first tension spring 6 to store energy.

As shown in fig. 11, when the opening angle of the cabinet door exceeds 45 °, the first driving column 52 slides from the first driving surface 311 of the side wall of the driving arm 31 to the second driving surface 312, and at this time, the driving arm is no longer pulled by the driving arm 31 to be opened, but the second tension spring 7 is pulled to move in the fully opening direction. Meanwhile, the first tension spring 6 pulls the lower sliding plate 3 to reset to the left, and the trigger button 91 is forced to be buckled with the limiting groove 36 again.

As shown in fig. 12 and 13, when the opening angle of the cabinet door exceeds 60 °, the first driving column 52 contacts the second driving surface 352, and drives the driving arm 31 to swing leftward to push the upper sliding plate to move leftward, and during the leftward movement of the upper sliding plate, the upper sliding plate compresses the buffer cylinder 81 to slow down the movement speed of the upper sliding plate, so as to indirectly limit the opening speed of the swing arm 5, thereby achieving the buffer effect when the cabinet door is opened to the maximum angle, and avoiding the impact noise generated by the too fast opening speed of the cabinet door.

As shown in fig. 14, when the user closes the cabinet door, an external force operates the cabinet door, the door pushing driving swing arm swings inwards along the swing seat, the swing seat stretches the second tension spring 7 when swinging, and the second driving column below the swing seat interacts with the first driving surface 351 on the side of the second driving groove on the driving arm 31, so that the driving arm swings outwards, and the upper sliding plate is forced to move rightwards for a certain distance by the linkage of the driving arm and the upper sliding plate, and the third spring is compressed to provide an elastic force for automatic closing.

When the closing angle is lower than 45 degrees as shown in fig. 15, the second driving column is separated from the second driving surface 312, the first driving column 52 is contacted with the second driving surface 312 at the side of the first driving groove 33, at this time, the third spring pushes the upper sliding plate to move leftwards, and the driving arm 31 linked with the upper sliding plate drives the swing arm 5 to automatically close inwards.

Wherein, in order to prevent to close the speed too fast and cause the cabinet door and the cabinet body to collide, be provided with installation cushion cylinder 81 between lower sliding plate 3 and the upper slide plate in the present case, this cushion cylinder 81 is the compression buffering type. When the top slide is moving leftwards, the buffer cylinder can buffer the moving speed of the top slide, so that the top slide slowly moves leftwards, and the cabinet door is slowly closed.

Compared with the prior art, the door opener in the present case not only can realize opening the function to the bounce-back formula of cabinet door, can also realize the automatic two-way cushioning effect when opening and closing of cabinet door to avoid the cabinet door and the cabinet body to take place the collision and produce the noise between the body. In addition, the structure in the present case adopts to press the bounce-type to open, consequently need not to install operating parts such as handle on the cabinet door, when keeping cabinet body appearance clean and tidy pleasing to the eye, has avoided operating parts such as handle and children to bump, or the emergence hook such as clothing, has promoted its security, so can extensively use widely.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed.

Claims

1. The utility model provides a door closer with two-way buffering of switch door resets which characterized in that: it includes drain pan (1) and face guard (2), forms spacing district between drain pan (1) and face guard (2), by lower supreme range upon range of installing down slide (3) and top slide (4) in proper order in the spacing district, a swing arm (5) are articulated through hinge hole (11) on swing seat (51) and drain pan (1), and swing arm (5) are around this hinge hole (11) and are rotated:

a first tension spring (6) is arranged between the lower sliding plate (3) and the bottom box, and the first tension spring (6) pulls the lower sliding plate (3) to move towards the direction deviating from the swinging seat (51) all the time;

a second tension spring (7) is arranged between the bottom shell (1) and the swinging seat (51), and the second tension spring (7) pulls the swinging seat (51) to rotate towards the opening direction of the swinging arm (5) all the time;

the lower sliding plate (3) is provided with a lower baffle (32), the upper sliding plate (4) is provided with an upper baffle (44), a pull rod (45) penetrates through the upper baffle (44) and then penetrates into the lower baffle (32), a limiting plate (46) is arranged at the front end of the pull rod (45) and is pressed against the upper baffle (44), a limiting stop pillar (47) is arranged at the rear end of the pull rod (45), a third spring (8) is sleeved on the surface of the pull rod (45), one end of the third spring (8) is pressed against the upper baffle (44), the other end of the third spring (8) is pressed against the limiting stop pillar (47), and the third spring (8) always pulls the upper sliding plate (4) and the lower sliding plate (3) to move relatively all the time through the pull rod (45);

the tail of the bottom shell (1) is provided with a release buckle (9), the release buckle (9) is buckled with or separated from a limiting groove (36) on the lower sliding plate (3), the release buckle (9) is linked with a trigger buckle (91) protruding out of the lower end face of the bottom shell (1), and when the trigger buckle (91) is driven to move, the trigger buckle (91) drives the release buckle (9) to swing to be tripped from the limiting groove (36);

spacing district in be provided with articulated shaft (321), articulated shaft (321) are articulated with the one end of actuating arm (31), the actuating arm (31) other end is articulated with top slide (4), actuating arm (31) on be provided with first actuation groove (33) and second actuation groove (34), correspondingly: the swing seat (51) is provided with a first driving column (52) and a second driving column (53), and the first driving column (52) and the second driving column (53) respectively interact with the first driving groove (33) and the second driving groove (34) to force the driving arm (31) to swing;

a buffer cylinder (81) is arranged between the lower sliding plate (3) and the upper sliding plate (4), and the buffer cylinder (81) is of a compression buffer type.

2. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: an inwards concave guide area (12) is arranged in the bottom shell (1), and correspondingly, the lower sliding plate (3) is arranged in the guide area in a sliding manner.

3. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: a tension spring buckle (54) is arranged on the swinging seat (51), and one end of the second tension spring (7) is hung and buckled on the tension spring buckle (54).

4. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 3, wherein: the swing seat (51) is provided with a tension spring groove (55), and a second tension spring passes through the tension spring groove (55) to be hung and buckled with a tension spring buckle (54).

5. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: the first driving groove (33) is an inner groove arranged on the driving arm (31), the first driving column (52) is positioned in the inner groove to slide, a first driving surface (311) and a second driving surface (312) which expand towards the outer direction of the groove are arranged on the side wall of the driving arm (31), and the first driving surface (311) and the second driving surface (312) are connected through a third driving surface (313) which protrudes towards the inner direction of the groove.

6. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: the second driving groove (34) and the first driving groove (33) are separated by a reset block (35), a planar first driving surface (351) is arranged on the reset block (35) towards one side of the second driving groove, and an arc-shaped second driving surface (352) is arranged on one side of the first driving groove.

7. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: the tension of the second tension spring (7) is greater than that of the first tension spring (6).

8. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 1, wherein: the release buckle (9) is hinged on the bottom shell (1) in a swinging mode, a driving rod (92) is arranged at the lower portion of the release buckle (9) and is pressed against the trigger buckle (91), and the release buckle (9) drives the trigger buckle (91) to swing when retracting inwards.

9. The door closer with the bidirectional buffering reset function for the opening and closing door of claim 8, wherein: the upper end of the release buckle (9) is provided with a drive buckle (93), a push spring (14) is arranged between the drive buckle (93) and the bottom shell, and the push spring (14) always pushes the trigger buckle (91) to swing towards the direction of the limiting groove (36) and be hung with the limiting groove.