CN215949206U

CN215949206U - Hidden door closer

Info

Publication number: CN215949206U
Application number: CN202121751508.7U
Authority: CN
Inventors: 林新量; 黄少祥; 章国银; 郑群
Original assignee: Zhejiang Dunhaosi Hardware Ind Co ltd
Current assignee: Zhejiang Dunhaosi Hardware Ind Co ltd
Priority date: 2021-07-29
Filing date: 2021-07-29
Publication date: 2022-03-04
Anticipated expiration: 2031-07-29

Abstract

The utility model relates to the technical field of door closers, and discloses a hidden door closer, which comprises a shell and a toothed cylinder, wherein the toothed cylinder is arranged in the shell and can transversely move in the shell; the stroke section is arranged in the stroke hole, is positioned on the front side wall and the rear side wall of the stroke hole and consists of a plurality of stroke teeth; and a driving section matched with the stroke teeth is arranged on part of the outer wall of the gear shaft and consists of a plurality of driving teeth. The shell is arranged on the door body, the door body drives the gear shaft to rotate, and the driving section on the gear shaft is matched with the stroke section in the gear cylinder to drive the gear cylinder to move in the shell, so that the driving structure is simplified.

Description

Hidden door closer

Technical Field

The utility model relates to the technical field of door closers, in particular to a hidden door closer.

Background

The door closer is a hydraulic press similar to a spring on the door head, can be released after being compressed after the door is opened, and automatically closes the door, and the door closer has the function similar to that of a spring door, so that the door can be accurately and timely closed to an initial position after being opened. When the existing door closer is used, the door cannot be positioned when being opened, the door needs to be opened and closed to a certain degree in certain specific occasions, and the positioning amplitude needs to be manually positioned or the positioning structure is complex, so that the door closer is inconvenient to use. For example, the chinese utility model patent CN201820118725.4 discloses a novel hidden positioning type door closer, which comprises a hydraulic switch assembly, a connecting rod and a door closing slide way, wherein one end of the connecting rod is fixed on the hydraulic switch assembly, the other end is fixed on a sliding block, and the sliding block is fixed in a T-shaped chute at the bottom of the door closing slide way; a positioning block which can be adjusted left and right is arranged in the T-shaped sliding groove, a pressing sheet is fixed on the positioning block, and the pressing sheet is arranged towards the sliding block. The positioning structure in the above patent is complicated, and the stability of positioning is easily lowered after long-term use.

Disclosure of Invention

The present invention addresses the above-mentioned shortcomings in the prior art by providing a concealed door closer.

In order to solve the technical problem, the utility model is solved by the following technical scheme:

a hidden door closer comprises a shell and a toothed cylinder, wherein the toothed cylinder is arranged in the shell and can transversely move in the shell, a stroke hole is formed in the toothed cylinder, and a toothed shaft is rotatably arranged in the stroke hole in a penetrating mode;

the stroke section is arranged in the stroke hole, is positioned on the front side wall and the rear side wall of the stroke hole and consists of a plurality of stroke teeth;

and a driving section matched with the stroke teeth is arranged on part of the outer wall of the gear shaft and consists of a plurality of driving teeth.

Preferably, the angle between the two end faces of the drive section is 120 °.

Preferably, a compression spring is provided in the housing, one end of the compression spring abuts against one end of the inside of the housing, and the other end of the compression spring abuts against one end of the pinion shaft.

Preferably, the other end of the tooth cylinder is provided with a mounting hole which is coaxial with the tooth cylinder, and a safety valve is arranged in the mounting hole.

Preferably, the stroke holes are composed of arc holes and square holes, and the arc holes are respectively arranged at two ends of the square holes and communicated with the square holes.

Preferably, the stroke teeth are arranged in the middle of the side wall of the square hole, first tooth grooves are formed between the stroke teeth, second tooth grooves are formed in the two ends of the stroke section, and the width of each second tooth groove is larger than that of each first tooth groove.

Preferably, the drive teeth comprise first drive teeth adapted to the first tooth slot and second drive teeth adapted to the second tooth slot, the first drive teeth having a width less than the width of the second drive teeth, the first drive teeth being located between the second drive teeth.

Due to the adoption of the technical scheme, the utility model has the remarkable technical effects that:

1. the shell is arranged on the door body, the door body drives the gear shaft to rotate, and the driving section on the gear shaft is matched with the stroke section in the gear cylinder to drive the gear cylinder to move in the shell, so that the driving structure is simplified.

2. The driving section part is arranged on the gear shaft, the gear shaft rotates to a corresponding angle, and two ends of the driving section are respectively abutted against the stroke teeth, so that the door body is positioned, and the structure and the mode for positioning the door body are simplified.

3. The width of the second driving tooth is larger than that of the first driving tooth, and when the door body is positioned, the second driving tooth abuts against the stroke tooth, so that the stability of the second driving tooth abutting against the stroke tooth is improved.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

Fig. 2 is a structural schematic diagram of the gear shaft located at minus 50 degrees in the gear cylinder.

Fig. 3 is a schematic structural view of the gear shaft located at positive 70 degrees in the gear cylinder.

Fig. 4 is a schematic structural view of the gear shaft located at positive 220 ° in the gear cylinder.

The names of the parts indicated by the numerical references in the drawings are as follows: the hydraulic driving device comprises a shell 1, a toothed cylinder 2, a guide rail 3, a stroke hole 4, a toothed shaft 5, a rocker arm 6, a stroke section 7, a stroke tooth 8, a driving section 9, a compression spring 10, a mounting hole 11, a safety valve 12, a circular arc hole 13, a square hole 14, a first toothed groove 15, a second toothed groove 16, a driving tooth 17, a first driving tooth 18 and a second driving tooth 19.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples.

Example 1

The utility model provides a hidden door closer, as shown in fig. 1 to 4, including casing 1 and tooth section of thick bamboo 2, casing 1 is installed on the door body, install guide rail 3 on the door frame, 2 tooth section of thick bamboo 2 of tooth section of thick bamboo set up in casing 1 and can be in casing 1 lateral shifting, the stroke hole 4 has been seted up on the tooth section of thick bamboo 2, the tooth axle 5 rotationally wears to locate in the stroke hole 4, the upper end and the one end of rocking arm 6 of tooth axle 5 are connected, the other end of rocking arm 6 passes through the slider and is connected with guide rail 3, the slider removes in guide rail 3. The stroke section 7 is arranged in the stroke hole 4, and the stroke section 7 is positioned on the front side wall and the rear side wall of the stroke hole 4 and consists of a plurality of stroke teeth 8. A driving section 9 matched with the stroke teeth 8 is arranged on part of the outer wall of the gear shaft 5, and the driving section 9 consists of a plurality of driving teeth 17. Casing 1 installs in the door internally, and when opening the door, the door body drives rocking arm 6 and swings, and rocking arm 6 drives pinion 5 and rotates, and drive section 9 on the pinion 5 outer wall moves in casing 1 with the 7 cooperation drive tooth section of thick bamboo 2 of stroke section. When the driving section 9 is separated from the stroke section 7, two ends of the driving section 9 are respectively abutted against the stroke teeth 8, and the door body is in a stop state, so that the opening and stop modes of the door body are simplified.

The angle between the two end faces of the drive section 9 is 120 °. Set up drive section 9 on the part outer wall of pinion 5, when drive section 9 rotates to stroke section 7 and with stroke section 7 cooperation, pinion 5 drives drive section 9 and rotates, and drive section 9 passes through stroke section 7 drive tooth section 2 and removes in casing 1, and when drive section 9 and stroke section 7 separation, pinion 5 and tooth section 2 separation promptly, the both ends of drive section 9 offset with stroke tooth 8 respectively to realize the off-position of the door body.

A compression spring 10 is arranged in the shell 1, one end of the compression spring 10 is abutted against one end inside the shell 1, and the other end of the compression spring 10 is abutted against one end of the gear shaft 5. After the door body is opened, the compression spring 10 pushes the gear cylinder 2 to move, so that the gear cylinder 2 drives the gear shaft 5 to rotate, and the door body is automatically closed.

The other end of the tooth cylinder 2 is provided with a mounting hole 11 which is coaxial with the tooth cylinder 2, and a safety valve 12 is arranged in the mounting hole 11. Prevent that the violence from closing the door and causing the damage to casing 1 and tooth section of thick bamboo 2, guarantee the steady operation of tooth section of thick bamboo 2.

Example 2

As shown in fig. 1 to 4, in embodiment 1, a stroke hole 4 is composed of an arc hole 13 and a square hole 14, and the arc holes 13 are respectively disposed at two ends of the square hole 14 and are communicated with the square hole 14. The gear shaft 5 is convenient to rotate to drive the gear cylinder 2 to move transversely, and the moving stability of the gear cylinder 2 is improved.

Example 3

A hidden door closer is disclosed, as shown in fig. 1 to 4, in embodiment 2, a stroke tooth 8 is arranged in the middle of the side wall of a square hole 14, a first tooth slot 15 is arranged between the stroke teeth 8, second tooth slots 16 are arranged at two ends of a stroke section 7, and the width of the second tooth slot 16 is larger than that of the first tooth slot 15. The drive section 17 comprises first drive teeth 18 and second drive teeth 19, the first drive teeth 18 fitting into the first tooth slot 15 and the second drive teeth 19 fitting into the second tooth slot 16, the width of the first drive teeth 18 being smaller than the width of the second drive teeth 19, the first drive teeth 18 being located between the second drive teeth 19. The driving section 9 rotates to the position between the stroke teeth 8, so that two ends of the driving section 9 can respectively abut against the stroke teeth 8 to organize the movement of the tooth cylinder 2, and the positioning of the door body is realized.

In the initial position, the gear shaft 5 is positioned at the right end of the gear barrel 2, the gear shaft 5 is at a position of minus 50 degrees, and the second driving tooth 19 at one end of the driving section 17 is meshed with the second tooth groove 16 at the right end of the front side of the gear barrel 2. When the door body is opened, the gear shaft 5 rotates anticlockwise to drive the gear cylinder 2 to move rightwards, after the gear shaft 5 rotates 120 degrees, namely the gear shaft 5 is located at a positive 70-degree position, the gear shaft 5 is located at the left end of the gear cylinder 2, the second driving teeth 19 respectively abut against the stroke teeth 8, the gear cylinder 2 and the door body are in a stop state, and when the gear shaft 5 rotates positive 70 degrees to positive 110 degrees, the gear cylinder 2 is in a stop state. The gear shaft 5 continues to rotate, and when the gear shaft is located at the positive 220-degree position, the second driving tooth 19 at the other end of the driving section 17 is meshed with the second tooth groove 16 at the right end of the rear side of the gear barrel 2.

Claims

1. The utility model provides a hidden door closer, includes casing (1) and tooth section of thick bamboo (2), and tooth section of thick bamboo (2) set up in casing (1) and can be in casing (1) lateral shifting, its characterized in that: the gear cylinder (2) is provided with a stroke hole (4), and the gear shaft (5) is rotatably arranged in the stroke hole (4) in a penetrating way;

a stroke section (7) is arranged in the stroke hole (4), and the stroke section (7) is positioned on the front side wall and the rear side wall of the stroke hole (4) and consists of a plurality of stroke teeth (8);

a driving section (9) matched with the stroke teeth (8) is arranged on part of the outer wall of the gear shaft (5), and the driving section (9) consists of a plurality of driving teeth (17).

2. The concealed door closer according to claim 1, wherein: the included angle between the two end surfaces of the driving section (9) is 120 degrees.

3. The concealed door closer according to claim 1, wherein: a compression spring (10) is arranged in the shell (1), one end of the compression spring (10) abuts against one end of the interior of the shell (1), and the other end of the compression spring (10) abuts against one end of the gear shaft (5).

4. A concealed door closer according to claim 3, wherein: the other end of the tooth cylinder (2) is provided with a mounting hole (11) which is coaxial with the tooth cylinder (2), and a safety valve (12) is arranged in the mounting hole (11).

5. The concealed door closer according to claim 1, wherein: the stroke hole (4) consists of an arc hole (13) and a square hole (14), and the arc hole (13) is respectively arranged at two ends of the square hole (14) and communicated with the square hole (14).

6. The concealed door closer according to claim 5, wherein: the stroke teeth (8) are arranged in the middle of the side wall of the square hole (14), first tooth grooves (15) are formed between the stroke teeth (8), second tooth grooves (16) are formed in the two ends of the stroke section (7), and the width of each second tooth groove (16) is larger than that of each first tooth groove (15).

7. The concealed door closer according to claim 6, wherein: the driving teeth (17) comprise first driving teeth (18) and second driving teeth (19), the first driving teeth (18) are matched with the first tooth grooves (15), the second driving teeth (19) are matched with the second tooth grooves (16), the width of the first driving teeth (18) is smaller than that of the second driving teeth (19), and the first driving teeth (18) are located between the second driving teeth (19).