CN215056466U

CN215056466U - Electric concealed door closer

Info

Publication number: CN215056466U
Application number: CN202023162169.7U
Authority: CN
Inventors: 徐宇宏
Original assignee: Shanghai Castel Environmental Purification Materials Co ltd
Current assignee: Shanghai Castel Environmental Purification Materials Co ltd
Priority date: 2020-12-23
Filing date: 2020-12-23
Publication date: 2021-12-07
Anticipated expiration: 2030-12-23

Abstract

The utility model discloses an electric hidden door closer, which comprises a door frame and a second connecting rod, one side of the door frame is rotatably connected with a door leaf, the inner wall of the top of the door frame is provided with a motor, the output end of the motor is rotatably connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a first threaded block, the outer wall of the threaded rod is in threaded connection with a second threaded block, the top of the door frame is provided with a chute, the outer wall of one side of the first threaded block is fixedly provided with a fixed block, the inner wall of the fixed block is provided with a second pin shaft, the fixed block is rotatably connected with the first connecting rod, the outer wall of one end of the first connecting rod is provided with a buffer rod, the outer wall of the buffer rod is sleeved with a spring, one end of the first connecting rod is provided with a second pin seat, the electric control on-off and on of the door is realized through the arrangement of the threaded rod and the motor structure, compared with the traditional structure of a gear and a connecting shaft, the structure of the motor is less damaged, and the door closer is not easy to be damaged when being impacted by the outside, and the service life of the door closer is prolonged.

Description

Electric concealed door closer

Technical Field

The utility model belongs to the technical field of the door closer, specifically be electronic 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, automatically closes the door, has the effect like a spring door, and can ensure that the door is accurately and timely closed to an initial position after being opened.

The traditional door closer adopts gear meshing transmission, needs great force in the transmission process, so the service life of the motor can be reduced, and the structure is very easy to be damaged under the action of external force.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: to solve the above-mentioned proposed problems, an electric concealed door closer is provided.

The utility model adopts the technical scheme as follows: the electric hidden door closer comprises a door frame and a second connecting rod, wherein one side of the door frame is rotatably connected with a door leaf, the inner wall of the top of the door frame is provided with a motor, the output end of the motor is rotatably connected with a threaded rod, the outer wall of the threaded rod is in threaded connection with a first threaded block, the outer wall of the threaded rod is in threaded connection with a second threaded block, the top of the door frame is provided with a chute, the outer wall of one side of the first threaded block is fixedly provided with a fixed block, the inner wall of the fixed block is provided with a second pin shaft, the fixed block is rotatably connected with the first connecting rod, the outer wall of one end of the first connecting rod is provided with a buffer rod, the outer wall of the buffer rod is sleeved with a spring, one end of the first connecting rod is provided with a second pin joint seat, one end of the second connecting rod is provided with a third pin joint seat, one end of the buffer rod is fixedly connected with the second connecting rod, and one end of the second connecting rod is rotatably connected with a connecting rod, one side of the second threaded block is rotatably connected with a connecting rod, a strip hole is formed in the inner wall of the connecting rod, a rotating shaft is arranged in the strip hole, a first pin joint seat is arranged at one end of the connecting rod, and a connecting seat is arranged on the outer wall of the bottom of the other end of the connecting rod.

In a preferred embodiment, a first pin shaft is arranged on the outer wall of the top of the door leaf, the first pin shaft is located on the left side of the top of the door leaf, and the first pin shaft is rotatably connected to the connecting rod through a connecting seat.

In a preferred embodiment, the connecting rod and the second connecting rod are rotatably connected through the third pin joint seat and the rotating shaft, and the rotating shaft is located inside the third pin joint seat.

In a preferred embodiment, the outer wall of the threaded rod is provided with two reverse thread structures, and the first thread block and the second thread block are respectively in threaded connection with the outer walls of the two thread structures.

In a preferred embodiment, the first screw block is provided with a protruding block on both sides of the second screw block, and the size of the sliding groove is matched with the first screw block and the second screw block.

In a preferred embodiment, the size of the elongated hole is larger than the size of the first and second connecting rods, and the second connecting rod is located inside the connecting rod when the first and second screw blocks are located at both ends of the threaded rod.

To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:

1. the utility model discloses in, through the threaded rod and the motor structure that set up, realized the automatically controlled switching to the door, for the structure of traditional gear and connecting axle, this structure is littleer to the structural damage of motor, and also is difficult for receiving the damage when receiving external striking, has prolonged the life of door closer.

2. The utility model discloses in, through the spring and the connecting rod structure that set up, can realize the stable closure to the door, and can make the second connecting rod accomodate to the connecting rod inside the door closed, guaranteed the outside aesthetic property of door.

Drawings

Fig. 1 is a schematic diagram of an electric concealed door closer of the present invention;

FIG. 2 is a side view of the chute of the present invention;

fig. 3 is a top view of the electric concealed door closer of the present invention;

FIG. 4 is a schematic diagram of the connecting rod structure of the present invention;

fig. 5 is a front view of the connecting rod structure of the present invention;

fig. 6 is a side view of the connecting rod structure of the present invention.

The labels in the figure are: 1-door frame, 2-door leaf, 3-motor, 4-first thread block, 5-chute, 6-threaded rod, 7-first pin shaft, 8-second thread block, 9-second pin shaft, 10-fixed block, 11-connecting rod, 12-first connecting rod, 13-buffer rod, 14-spring, 15-second connecting rod, 16-rotating shaft, 17-first pin joint seat, 18-connecting seat, 19-second pin joint seat, 20-third pin joint seat and 21-strip hole.

Detailed Description

To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the embodiments of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1-6, the electric hidden door closer includes a door frame 1 and a second connecting rod 15, one side of the door frame 1 is rotatably connected with a door leaf 2, the inner wall of the top of the door frame 1 is provided with a motor 3, the output end of the motor 3 is rotatably connected with a threaded rod 6, the outer wall of the threaded rod 6 is in threaded connection with a first threaded block 4, the outer wall of the threaded rod 6 is in threaded connection with a second threaded block 8, the outer wall of the threaded rod 6 is provided with two reverse threaded structures, the first threaded block 4 and the second threaded block 8 are respectively in threaded connection with the outer walls of the two threaded structures, the top of the door frame 1 is provided with a chute 5, the first threaded block 4 is provided with a convex block at two sides of the second threaded block 8, the size of the chute 5 is matched with the first threaded block 4 and the second threaded block 8, through the arrangement of the threaded rod 6 and the motor 3, the electric control opening and closing of the door is realized, compared with the traditional structure of gears and connecting shafts, the structure has less damage to the structure of the motor 3, and is not easy to be damaged when being impacted by the outside, the service life of the door closer is prolonged, a fixed block 10 is fixedly arranged on the outer wall of one side of a first thread block 4, a second pin shaft 9 is arranged on the inner wall of the fixed block 10, the fixed block 10 is rotatably connected with a first connecting rod 12, the outer wall of one end of the first connecting rod 12 is provided with a buffer rod 13, the outer wall of the buffer rod 13 is sleeved with a spring 14, one end of the first connecting rod 12 is provided with a second pin base 19, one end of a second connecting rod 15 is provided with a third pin base 20, one end of the buffer rod 13 is fixedly connected with a second connecting rod 15, one end of the second connecting rod 15 is rotatably connected with a connecting rod 11, one side of a second thread block 8 is rotatably connected with the connecting rod 11, the connecting rod 11 and the second connecting rod 15 are rotatably connected with a rotating shaft 16 through the third pin base 20, the rotating shaft 16 is positioned inside the third pin base 20, the inner wall of connecting rod 11 is provided with rectangular hole 21, the size in rectangular hole 21 is greater than the size of first connecting rod 12 and second connecting rod 15, second connecting rod 15 is located the inside of connecting rod 11 when first screw block 4 and second screw block 8 are located the both ends of threaded rod 6, the inside in rectangular hole 21 is provided with pivot 16, the one end of connecting rod 11 is provided with first round pin connection seat 17, the other end bottom outer wall of connecting rod 11 is provided with connecting

seat

18, 2 top outer walls of door leaf are provided with first round pin axle 7, first round pin axle 7 is located the top left side of door leaf 2, first round pin axle 7 rotates through connecting seat 18 and connects in connecting rod 11, through spring 14 and the connecting rod 11 structure that sets up, can realize the stable closure to the door, and can make second connecting rod 15 accomodate to connecting rod 11 inside after the door is closed, the outside aesthetic property of door has been guaranteed.

The working principle is as follows: when the door is opened, the motor 3 is started through the outer wall controller, the threaded rod 6 is rotated, the first threaded block 4 and the second threaded block 8 can move relatively under the action of the threads and the sliding groove 5, thereby driving the first connecting rod 12, the second connecting rod 15 and the connecting rod 11 to move, finally rotating the door leaf 2 to open the door, wherein the structure of the rotating shaft 16, the connecting seat 18, the first pin 7 and the second pin 9 ensures the stability of rotation, when the door is closed, the motor 3 is started again to rotate reversely, the first connecting rod 12, the second connecting rod 15 and the connecting rod 11 are driven to move towards the inner side of the door frame 1, the second connecting rod 15 enters inside the elongated hole 21, when the door leaf 2 is about to close, thus ensuring that it can be stored, wherein the spring 14 lengthens and shortens the distance between the first connecting rod 12 and the second connecting rod 15, thereby ensuring the stability of the movement structure and avoiding the occurrence of the breaking condition.

In this electronic hidden door closer, through the threaded rod 6 and the motor 3 structure that set up, realized the automatically controlled switching to the door, for the structure of traditional gear and connecting axle, this structure is littleer to motor 3's structural damage, and also is difficult for receiving the damage when receiving external striking, has prolonged the life of door closer.

In the electric hidden door closer, the stable closing of the door can be realized through the arrangement of the spring 14 and the connecting rod 11, and the second connecting rod 15 can be accommodated in the connecting rod 11 after the door is closed, so that the external appearance of the door is ensured.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.

Claims

1. Electronic hidden door closer, including door frame (1) and second connecting rod (15), its characterized in that: a door leaf (2) is rotatably connected to one side of the door frame (1), a motor (3) is arranged on the inner wall of the top of the door frame (1), a threaded rod (6) is rotatably connected to the output end of the motor (3), a first threaded block (4) is in threaded connection with the outer wall of the threaded rod (6), a second threaded block (8) is in threaded connection with the outer wall of the threaded rod (6), a sliding chute (5) is arranged on the top of the door frame (1), a fixed block (10) is fixedly installed on the outer wall of one side of the first threaded block (4), a second pin shaft (9) is arranged on the inner wall of the fixed block (10), a first connecting rod (12) is rotatably connected to the fixed block (10), a buffer rod (13) is arranged on the outer wall of one end of the first connecting rod (12), a spring (14) is sleeved on the outer wall of the buffer rod (13), and a second pin connecting seat (19) is arranged on one end of the first connecting rod (12), the one end of second connecting rod (15) is provided with third round pin joint seat (20), the one end fixedly connected with second connecting rod (15) of buffer beam (13), the one end of second connecting rod (15) is rotated and is connected with connecting rod (11), one side of second screw thread piece (8) is rotated and is connected with connecting rod (11), the inner wall of connecting rod (11) is provided with rectangular hole (21), the inside in rectangular hole (21) is provided with pivot (16), the one end of connecting rod (11) is provided with first round pin joint seat (17), the other end bottom outer wall of connecting rod (11) is provided with connecting seat (18).

2. The electric concealed door closer according to claim 1, wherein: the outer wall of the top of the door leaf (2) is provided with a first pin shaft (7), the first pin shaft (7) is located on the left side of the top of the door leaf (2), and the first pin shaft (7) is rotatably connected to the connecting rod (11) through a connecting seat (18).

3. The electric concealed door closer according to claim 1, wherein: the connecting rod (11) and the second connecting rod (15) are rotatably connected through the third pin joint seat (20) and the rotating shaft (16), and the rotating shaft (16) is located inside the third pin joint seat (20).

4. The electric concealed door closer according to claim 1, wherein: the outer wall of the threaded rod (6) is provided with two reverse thread structures, and the first thread block (4) and the second thread block (8) are respectively in threaded connection with the outer walls of the two thread structures.

5. The electric concealed door closer according to claim 1, wherein: the first thread block (4) is provided with convex blocks at two sides of the second thread block (8), and the size of the sliding groove (5) is matched with the first thread block (4) and the second thread block (8).

6. The electric concealed door closer according to claim 1, wherein: the size of the elongated hole (21) is larger than the size of the first connecting rod (12) and the second connecting rod (15), and the second connecting rod (15) is positioned inside the connecting rod (11) when the first thread block (4) and the second thread block (8) are positioned at both ends of the threaded rod (6).