CN217760580U

CN217760580U - Novel automatic door closing device

Info

Publication number: CN217760580U
Application number: CN202221714757.3U
Authority: CN
Inventors: 刘惠文
Original assignee: Dongguan Xinxuhong Industry Co ltd
Current assignee: Dongguan Xinxuhong Industry Co ltd
Priority date: 2022-06-29
Filing date: 2022-06-29
Publication date: 2022-11-08
Anticipated expiration: 2032-06-29

Abstract

The utility model discloses a novel automatic door closing device, including shell one, shell two and backplate, be provided with telescopic machanism between shell one and the backplate, be provided with drive mechanism between shell one and the shell two. Traction mechanism includes coil spring groove, coil spring, pivot, spacing post, attenuator, fixed plate, apron, reel, haulage rope, lag, driving gear and driven gear, the coil spring groove sets up with the inside of shell two is integrative, coil spring fixed mounting is in the coil spring inslot, the one end of pivot is connected with the middle part rotation in coil spring groove, spacing post sets up with shell two is integrative. When the door is opened, the door body pulls the coil spring to tighten through the traction rope, after a person walks away, the coil spring releases torsion, the coil wheel pulls the traction rope back, the damper rotates synchronously, certain resistance is increased, the door body is automatically closed at a slower speed, and vibration and noise caused by the fact that the door is closed too fast are effectively avoided by reducing the closing speed of the door body.

Description

Novel automatic door closing device

Technical Field

The utility model relates to a door and window technical field specifically is a novel automatic door closing device.

Background

At present, the movable door is widely applied to interior decoration of houses, such as kitchens, bedrooms and study rooms, the movable door is of a horizontally-sliding type structure under the general condition, people are required to manually close the movable door after the movable door is pulled open, the movable door can be automatically closed, along with development of the society and improvement of science and technology, the automatic door closer is in due course, the habit of closing the door along with hands can be avoided, and when people open the door and go in and out, the automatic door closer can automatically close the door to ensure that the door is always in a closed state.

However, most of the existing door closers are complex in structure, high in installation cost and maintenance cost, high in door closing speed, high in door closing force and prone to causing vibration and noise, after the door closer is used for a long time, the tension of the traction rope is reduced, the traction rope needs to be cut off and connected with the movable door again, and the door closer cannot be used due to the fact that the traction rope is prone to being cut off more.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a novel automatic door closing device to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a novel automatic door closing device comprises a first shell, a second shell and a back plate, wherein a telescopic mechanism is arranged between the first shell and the back plate, and a traction mechanism is arranged between the first shell and the second shell. The traction mechanism comprises a coil spring groove, a coil spring, a rotating shaft, a limiting column, a damper, a fixing plate, a cover plate, a coil wheel, a traction rope, a protective sleeve, a driving gear and a driven gear, wherein the coil spring groove is integrally arranged with the inside of the second shell, the coil spring is fixedly arranged in the coil spring groove, one end of the rotating shaft is rotatably connected with the middle of the coil spring groove, the limiting column is integrally arranged with the second shell, the limiting column is positioned on one side of the coil spring groove, the damper is fixedly arranged with the second shell through the fixing plate, the damper is positioned on one side of the coil spring groove, the middle of the cover plate is rotatably connected with the rotating shaft, the cover plate is fixedly arranged with the bottom of the coil spring groove, the coil wheel is fixedly arranged with the rotating shaft, the coil wheel is positioned below the cover plate, one end of the traction rope is fixedly connected with the coil wheel, the traction rope penetrates through the protective sleeve, the traction rope is in contact with the limiting column, the protective sleeve is fixedly arranged on one side of the second shell, the driving gear is fixedly arranged below the driving gear, the driving gear is fixedly arranged with the output shaft of the damper, and the driven gear is meshed with the driving gear.

Optionally, the telescopic mechanism includes a chute, a positioning hole, a limiting groove, a sliding rod, a limiting lug, a movable groove, a pull buckle, a positioning column, a piston plate and an arc-shaped elastic sheet, the chute corresponds to an opposite surface of the first shell and the back plate, the positioning hole is arranged at the bottom of the chute, the limiting groove is arranged at two sides of the chute, the sliding rod is connected with the chute in a sliding manner, the limiting lug is connected with two sides of the sliding rod in an integrated manner, the limiting lug is connected with the limiting groove in a sliding manner, the movable groove is arranged at two ends of the sliding rod, the piston plate is connected with the movable groove in a sliding manner, the piston plate is arranged in the middle of the positioning column in an integrated manner, the top of the positioning column is connected with the pull buckle in a movable manner, the arc-shaped elastic sheet is fixedly mounted on the inner wall of the movable groove, and the arc-shaped elastic sheet is located on the surface of the piston plate close to the pull buckle.

Optionally, a fixing clamping groove is formed in the side face of the coil spring groove and the middle portion of the rotating shaft, one end of the coil spring is fixedly mounted with the fixing clamping groove in the side face of the coil spring groove, and the other end of the coil spring is fixedly mounted with the fixing clamping groove in the rotating shaft.

Optionally, the haulage rope uses a steel wire rope with a diameter of one millimeter, and the other end of the haulage rope is provided with a hook.

Optionally, the first shell and the second shell are provided with a semicircular notch for installing the protecting sleeve at the same side, and the protecting sleeve is clamped in the semicircular notch.

Optionally, the diameter of the positioning column is the same as that of the limiting groove, the directions of the movable grooves formed at the two ends of the sliding rod are opposite, and the limiting protrusions at the two ends of the sliding rod are respectively in sliding connection with the limiting grooves formed in the first shell and the back plate.

Optionally, the number of the sliding rods is two, the two sliding rods are the same in shape and size, and six arc-shaped elastic pieces are arranged in the same movable groove in a group.

Compared with the prior art, the beneficial effects of the utility model are that:

1. this automatic door closing device, through with the backplate, the wall body next to the door body is fixed in with shell two to shell one, with the one end and the door body coupling of haulage rope, when the door is opened, the door body tightens up through haulage rope pulling coil spring, after the people walks away, coil spring release torsion, and drive the pivot and rotate, also can rotate with pivot fixed mounting's reel and driving gear, and then make the reel with the haulage rope pullback, the driving gear drives the synchronous rotation of attenuator, increase certain resistance, make the door body with slower speed self-closing, through the closing speed that reduces the door body, thereby effectively solve the speed of closing the door and cause vibration and noise at the excessive speed.

2. This automatic door closing device, through setting up tension mechanism, after the door closer used a period, the elasticity of coil spring declined, lead to the pulling force to reduce, can open the pulling reference column with drawing the knot, make the reference column extract from the spacing groove, and then remove shell one and shell two to suitable position, loosen and draw the knot, reference column backward movement pegs graft with the spacing groove under the effect of arc shell fragment, and then fix shell one and shell two, make the distance grow of door closer and the door body, and then make the elasticity of coil spring increase.

Drawings

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

fig. 2 is a schematic view of the internal structure of the novel automatic door closing device of the present invention;

fig. 3 is an exploded view of the traction mechanism of the novel automatic door closing device of the present invention;

fig. 4 is a schematic structural view of a first shell of the novel automatic door closing device of the present invention;

fig. 5 is a schematic structural view of a back plate of the novel automatic door closing device of the present invention;

fig. 6 is a schematic structural view of a sliding rod of the novel automatic door closing device of the present invention;

fig. 7 is a cross-sectional view of the sliding rod of the novel automatic door closing device of the present invention.

In the figure: 1. a first shell; 2. a second shell; 3. a back plate; 4. a traction mechanism; 41. a coil spring groove; 42. a coil spring; 43. a rotating shaft; 44. a limiting column; 45. a damper; 46. a fixing plate; 47. a cover plate; 48. a winding wheel; 49. a hauling rope; 410. a protective sleeve; 411. a driving gear; 412. a driven gear; 5. a telescoping mechanism; 51. a chute; 52. positioning holes; 53. a limiting groove; 54. a slide bar; 55. a limiting bump; 56. a movable groove; 57. pulling the button; 58. a positioning column; 59. a piston plate; 510. an arc-shaped elastic sheet.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only 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 work belong to the protection scope of the present invention.

Referring to fig. 1 to 7, the present invention provides a novel automatic door closing device, which includes a first housing 1, a second housing 2 and a back plate 3, wherein a telescopic mechanism 5 is disposed between the first housing 1 and the back plate 3, and a traction mechanism 4 is disposed between the first housing 1 and the second housing 2.

The traction mechanism 4 comprises a coil spring groove 41, a coil spring 42, a rotating shaft 43, a limiting column 44, a damper 45, a fixing plate 46, a cover plate 47, a coil wheel 48, a traction rope 49, a protective sleeve 410, a driving gear 411 and a driven gear 412, wherein the coil spring groove 41 and the inside of the shell 2 are integrally arranged, the coil spring 42 is fixedly arranged in the coil spring groove 41, one end of the rotating shaft 43 is rotatably connected with the middle part of the coil spring groove 41, the limiting column 44 is integrally arranged with the shell 2, the limiting column 44 is positioned at one side of the coil spring groove 41, the damper 45 is fixedly arranged with the shell 2 through the fixing plate 46, the damper 45 is positioned at one side of the coil spring groove 41, the middle part of the cover plate 47 is rotatably connected with the rotating shaft 43, the cover plate 47 is fixedly arranged with the bottom of the coil spring groove 41, the coil wheel 48 is fixedly arranged with the rotating shaft 43, the coil wheel 48 is positioned below the cover plate 47, one end of the traction rope 49 is fixedly connected with the coil wheel 48, and the traction rope 49 penetrates through the protective sleeve 410, the traction rope 49 is contacted with the limit post 44, the protective cover 410 is fixedly arranged at one side of the shell two 2, the driving gear 411 is fixedly arranged below the rolling wheel 48 with the rotating shaft 43, the driven gear 412 is fixedly arranged with the output shaft of the damper 45, the driven gear 412 is meshed with the driving gear 411, one end of the traction rope 49 is connected with the door body by fixing the back plate 3, the shell one 1 and the shell two 2 on the wall body beside the door body, when the door is opened, the door body pulls the rolling spring 42 to tighten through the traction rope 49, when people walk away, the rolling spring 42 releases the torsion and drives the rotating shaft 43 to rotate, the rolling wheel 48 and the driving gear 411 which are fixedly arranged with the rotating shaft 43 also rotate, so that the rolling wheel 48 pulls the traction rope 49 back, the driving gear 411 drives the damper 45 to synchronously rotate, a certain resistance is increased, the door body automatically closes at a slower speed, and the closing speed of the door body is reduced, thereby effectively solving the problem of vibration and noise caused by the too fast door closing speed.

The telescoping mechanism 5 comprises a sliding groove 51, a positioning hole 52, a limiting groove 53, a sliding rod 54, a limiting lug 55, a movable groove 56, a pull buckle 57, a positioning column 58, a piston plate 59 and an arc-shaped elastic sheet 510, wherein the sliding groove 51 is correspondingly arranged on the opposite surface of the shell I1 and the back plate 3, the positioning hole 52 is arranged at the bottom of the sliding groove 51, the limiting groove 53 is arranged on two sides of the sliding groove 51, the sliding rod 54 is in sliding connection with the sliding groove 51, the limiting lug 55 is integrally connected with two sides of the sliding rod 54, the limiting lug 55 is in sliding connection with the limiting groove 53, the movable groove 56 is arranged from two ends of the sliding rod 54, the piston plate 59 is in sliding connection with the movable groove 56, the piston plate 59 is integrally arranged with the middle part of the positioning column 58, the top part of the positioning column 58 is movably connected with the pull buckle 57, the arc-shaped elastic sheet is fixedly arranged with the inner wall of the movable groove 56, the arc-shaped elastic sheet 510 and the positioning column 59 are positioned on one surface of the pull buckle 57, the telescoping mechanism 5 is arranged, after the door closer to the door closer for a period, the door is used, the spring 42, the spring falls, the tension is reduced, the pull buckle 57 can open the pull buckle 58, the positioning column is pulled out, the positioning column is further, the positioning column 58 is further moved to move the shell I1 and the shell 2 of the shell to the shell, the shell 1 and the shell, the shell 2, the door body 53, and the positioning column, the door body 53, and the door closer, and the door body 53 are further increases the distance between the door body, and the door closer 1 is increased, and the door body, and the door closer 5, and the door body 53 is increased, and the door body is increased.

A fixing clamping groove is formed in the side face of the coil spring groove 41 and the middle of the rotating shaft 43, one end of the coil spring 42 is fixedly installed with the fixing clamping groove in the side face of the coil spring groove 41, and the other end of the coil spring 42 is fixedly installed with the fixing clamping groove in the rotating shaft 43.

The hauling rope 49 uses a steel wire rope with a diameter of one millimeter, and the other end of the hauling rope 49 is provided with a hook.

The same side of the first shell 1 and the second shell 2 is provided with a semicircular notch for installing the protective sleeve 410, and the protective sleeve 410 is clamped in the semicircular notch.

The diameter of the positioning column 58 is the same as that of the limiting groove 53, the directions of the movable grooves 56 formed at the two ends of the sliding rod 54 are opposite, and the limiting lugs 55 at the two ends of the sliding rod 54 are respectively connected with the limiting grooves 53 formed in the first shell 1 and the back plate 3 in a sliding manner.

The two parallel sliding rods 54 are arranged, the two sliding rods 54 are the same in shape and size, and the six arc-shaped elastic sheets 510 are arranged in the same movable groove 56 in a group.

The working principle is as follows: the first shell 1 and the second shell 2 are fixed on a wall body beside a door body through the back plate 3, one end of the traction rope 49 is connected with the door body, when the door body is opened, the door body pulls the coil spring 42 to tighten through the traction rope 49, when a person walks away, the coil spring 42 releases torsion and drives the rotating shaft 43 to rotate, the coil wheel 48 and the driving gear 411 which are fixedly installed with the rotating shaft 43 also rotate, so that the coil wheel 48 pulls the traction rope 49 back, the driving gear 411 drives the damper 45 to synchronously rotate, certain resistance is increased, the door body is automatically closed at a slower speed, by reducing the closing speed of the door body, after the door closer is used for a period of time, the elasticity of the coil spring 42 is reduced, so that the pull buckle 57 can open and pull the positioning column 58, the positioning column 58 is pulled out of the limiting groove 53, the first shell 1 and the second shell 2 are moved to proper positions, the pull buckle 57 is loosened, the positioning column 58 reversely moves to be inserted into the limiting groove 53 under the action of the arc-shaped elastic sheet 510, the first shell 1 and the second shell 2 are fixed, the distance between the door body is increased, and the elastic force of the coil spring 42 is increased.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A novel automatic door closing device comprises a first shell (1), a second shell (2) and a back plate (3), and is characterized in that a telescopic mechanism (5) is arranged between the first shell (1) and the back plate (3), and a traction mechanism (4) is arranged between the first shell (1) and the second shell (2);

the traction mechanism (4) comprises a coil spring groove (41), a coil spring (42), a rotating shaft (43), a limiting column (44), a damper (45), a fixing plate (46), a cover plate (47), a coil wheel (48), a traction rope (49), a protecting sleeve (410), a driving gear (411) and a driven gear (412), wherein the coil spring groove (41) and the inside of the second shell (2) are integrally arranged, the coil spring (42) is fixedly installed in the coil spring groove (41), one end of the rotating shaft (43) is rotatably connected with the middle of the coil spring groove (41), the limiting column (44) and the second shell (2) are integrally arranged, the limiting column (44) is located on one side of the coil spring groove (41), the damper (45) is fixedly installed on the second shell (2) through the fixing plate (46), the damper (45) is located on one side of the coil spring groove (41), the middle of the cover plate (47) is rotatably connected with the rotating shaft (43), the cover plate (47) is fixedly installed on the bottom of the cover plate (41), the coil wheel (48) is fixedly installed on one end of the cover plate (43), and the traction rope (49) penetrates through the lower end of the traction rope (48), the traction rope (49) is in contact with the limiting column (44), the protective sleeve (410) is fixedly installed on one side of the second shell (2), the driving gear (411) and the rotating shaft (43) are fixedly installed, the driving gear (411) is located below the rolling wheel (48), the driven gear (412) is fixedly installed with an output shaft of the damper (45), and the driven gear (412) is meshed with the driving gear (411).

2. The novel automatic door closing device as claimed in claim 1, wherein said retractable mechanism (5) comprises a sliding slot (51), a positioning hole (52), a limiting slot (53), a sliding rod (54), a limiting protrusion (55), a movable slot (56), a pull buckle (57), a positioning post (58), a piston plate (59) and an arc-shaped spring (510), the sliding groove (51) is correspondingly arranged on the opposite surface of the first shell (1) and the back plate (3), the positioning holes (52) are arranged at the bottom of the sliding groove (51), the limiting grooves (53) are arranged at two sides of the sliding groove (51), the sliding rod (54) is connected with the sliding groove (51) in a sliding way, the limiting convex block (55) is connected with the two sides of the sliding rod (54) integrally, the limiting convex block (55) is connected with the limiting groove (53) in a sliding way, the movable groove (56) is provided with two ends of the self-sliding rod (54), the piston plate (59) is connected with the movable groove (56) in a sliding way, the piston plate (59) and the middle part of the positioning column (58) are integrally arranged, the top of the positioning column (58) is movably connected with the pull buckle (57), the arc-shaped elastic sheet is fixedly installed on the inner wall of the movable groove (56), and the arc-shaped elastic sheet (510) and one surface of the piston plate (59) close to the pull buckle (57).

3. The novel automatic door closing device according to claim 1, wherein a fixing clamping groove is formed in the side surface of the coil spring groove (41) and the middle portion of the rotating shaft (43), one end of the coil spring (42) is fixedly mounted with the fixing clamping groove in the side surface of the coil spring groove (41), and the other end of the coil spring (42) is fixedly mounted with the fixing clamping groove in the rotating shaft (43).

4. A new automatic door closer, according to claim 1, characterized in that said traction rope (49) uses a steel wire rope with a diameter of one millimeter, and the other end of said traction rope (49) is equipped with a hook.

5. The novel automatic door closing device according to claim 1, wherein the same side of the first casing (1) and the second casing (2) is provided with a semicircular groove for installing the protective sleeve (410), and the protective sleeve (410) is clamped in the semicircular groove.

6. The novel automatic door closing device as claimed in claim 2, wherein the diameter of the positioning column (58) is the same as that of the limiting groove (53), the directions of the movable grooves (56) formed at the two ends of the sliding rod (54) are opposite, and the limiting lugs (55) at the two ends of the sliding rod (54) are slidably connected with the limiting grooves (53) formed in the first housing (1) and the back plate (3), respectively.

7. The novel automatic door closing device according to claim 2, characterized in that two parallel sliding rods (54) are provided, the two sliding rods (54) have the same shape and size, and six arc-shaped spring pieces (510) are arranged in the same movable groove (56).