CN202249393U

CN202249393U - Gas spring door closer with simple structure

Info

Publication number: CN202249393U
Application number: CN2011203694938U
Authority: CN
Inventors: 梁炳饶; 周文林; 梁定伟
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-09-30
Filing date: 2011-09-30
Publication date: 2012-05-30
Anticipated expiration: 2021-09-30

Abstract

The utility model provides a gas spring door closer with a simple structure. The gas spring door closer comprises a fixed support, a movable support and a gas spring device, wherein the gas spring device comprises a piston rod, a piston, a cylinder body, a spring, an aim damping adjuster and a door positioning self-locking mechanism. The gas spring door closer is characterized in that: the door positioning self-locking mechanism is designed into a pressure reducing groove, and the pressure reducing groove is formed in the inner cavity of the cylinder body and close to the rear end; when the piston passes through the pressure reducing groove, the air pressure of the inner cavity of the cylinder body is reduced, so that door closing and locking are accelerated; the door positioning self-locking mechanism has a simple structure, and can realize pressure reduction without over precise setting; and the piston rod is not required to be designed into a tube body in which a vent groove is formed, so that the strength of the piston rod is enhanced, the service life of the door closer is prolonged, and the manufacturing cost is reduced. The gas spring door closer has the advantages of skilful design, simple structure, small volume and light weight, can be applied to various doors in any district and even extremely cold regions, and can be favored by numerous consumers.

Description

A kind of air spring door closer simple in structure

Technical field

The utility model relates to a kind of automatic door closer, specifically is a kind of air spring door closer simple in structure.

Background technology

Existing automatic door closer is the automatic door closer that adopts fluid pressure type or oil hydraulic type mostly, and this type door closer volume is big, quality heavy, and liquid or oil body be lower than subzero cold district at temperature and freeze easily, thereby causes this automatic door closer to lose efficacy.And State Intellectual Property Office of the People's Republic of China in December 5 calendar year 2001 the disclosed patent No. be 01205877.7, utility model patent that name is called the air spring door closer; This door closer comprises fixed support, piston rod, travel(l)ing rest, cylinder block, piston, spring, air damping adjuster and door self-locking positioning mechanism; Be characterized in that the one-way sealing device is made up of bulla and sealing ring; Bulla is fixed on the piston rod with piston; Leave the gap between bulla and the piston opposite face, sealing ring is located in the gap and with the cylinder block inner chamber and matches.Replace hydraulic pressure or oil pressure with air spring, not only reduced the weight of door closer, and it is brisk to open the door; Applicable to cold district, but, also be provided with valve owing on the piston rod of this air spring door closer, air channel is set; Structures such as bulb are set on cylinder block again, realize a location self-locking, thereby make complex structure, manufacturing cost height with this; And required precision is high, causes the requirement when using also high, is difficult to obtain more customers' favor.

Summary of the invention

To above-mentioned existing in prior technology problem, the purpose of the utility model provides the air spring door closer that a kind of applicability is strong, instructions for use is low and simple in structure.

For achieving the above object; The technical scheme that the utility model adopted is: a kind of air spring door closer simple in structure; Comprise fixed support, the travel(l)ing rest that is connected with doorframe that is connected with door leaf and be connected in the air spring device between the two stands; Said air spring device comprises piston rod, is connected in piston, cylinder block, spring, air damping adjuster and door location self-locking mechanism on the piston rod; Be provided with the one-way sealing structure between said piston and the cylinder block inner chamber, said air damping adjuster is arranged at the cylinder block rear end, is characterized in that said door location self-locking mechanism is designed to relief groove; Said relief groove is arranged at the inner chamber of cylinder block near rear end, and the inner chamber air pressure of cylinder block reduces and realizes quickening blind catch and lock when the said relief groove of said piston process.

Wherein, above-mentioned relief groove is arranged on the internal chamber wall of cylinder block, forms relief groove through internal chamber wall outwards being arranged with a bit of bar-shaped trough identical with the cylinder block length direction.

The one-way sealing structure seals in order to realize in the piston rod retraction cylinder block; Above-mentioned one-way sealing structure includes bulla and sealing ring; Said bulla is arranged at the tail end of piston rod; Leave the gap between said bulla and the above-mentioned piston, said sealing ring is arranged in this gap and in the gap, moves by a small margin.When in the piston rod retraction cylinder block, sealing ring moves to the piston place and stops the gas of cylinder block inner chamber to be communicated with outside air with piston; The outer rim of above-mentioned sealing ring and the internal chamber wall of cylinder block closely cooperate, and when said sealing ring passes through the position at relief groove place, form the breach of relief groove cross-sectional sizes between said sealing ring and the internal chamber wall.

In order further to simplify the structure of this air spring device, the rear end of above-mentioned cylinder block is arranged with rear end cap, and the middle part of said rear end cap has screwed hole, and above-mentioned air damping design of Regulator becomes screw and is rotatably connected in the said screwed hole.Outwards extended an arc bent plate at the edge of rear end cap, correspondence is provided with connecting hole on the said fixing support, can realize in the connecting hole that through the arc bent plate is inserted into the air spring device is connected with fixed support, thus easy disassembly.

For the head end that makes piston rod can be connected with travel(l)ing rest rotationally; Above-mentioned travel(l)ing rest is designed to the L type; It is fixed on the doorframe on one side; Another side offers a circular hole, and the head end of above-mentioned piston rod is bent into and is 90 ° crotch with piston rod, and said crotch fastener is in said circular hole and realize that the air spring device is connected with travel(l)ing rest.

The air spring door closer of the utility model also includes the thresholding bit architecture; Said thresholding bit architecture is a bending plate; Wherein offer the through hole that can penetrate piston rod on the plate face, the front end that the bending end through said thresholding bit architecture withstands on cylinder block make through hole angular deflection and with the stuck door of realizing of piston rod in location, opening angle place arbitrarily.

The utility model is owing to adopt relief groove to locate self-locking mechanism as door, and the inner chamber that relief groove is arranged at cylinder block is near rear end, when piston during through this relief groove the inner chamber gas of cylinder block be communicated with ambient atmos; Air pressure reduces, piston rod this moment quick retraction cylinder block under spring action, thus drive the door leaf quick-make; Completion padlock operation, this location self-locking mechanism is simple in structure, and need not too accurate setting and can realize reducing pressure; The body that air channel is arranged in piston rod need not to be designed to simultaneously; And then strengthened the intensity of this piston rod, in the application life of improving product, also reduced cost of manufacture; Again owing to be provided with the arc bent plate at the rear end cap edge of cylinder block; Correspondence is provided with connecting hole on the fixed support, the arc bent plate is inserted in the connecting hole and realizes connecting, and the head end of piston rod is bent into and is 90 ° crotch with piston rod; With the crotch fastener in the circular hole of travel(l)ing rest and realize to connect; So installation and removal are all simple and convenient, and can bear bigger pulling force, this door closer may be used on the bigger heavier door body.In sum; The described air spring door closer simple in structure of the utility model, its design is ingenious, simple in structure, and volume is little, in light weight; And long service life; Cost of manufacture is low, may be used on can obtaining numerous customers' favor on various types of doors of any area or even utmost point cold district.

Below in conjunction with accompanying drawing and embodiment the utility model is described further.

Description of drawings

Fig. 1 is the perspective view of the utility model collapse state.

Fig. 2 is the sectional structure sketch map of the utility model air spring device collapse state.

Fig. 3 is the sectional structure sketch map that the utility model air spring device draws back state.

The specific embodiment

To shown in Figure 3, the described a kind of air spring door closer simple in structure of this embodiment comprises the fixed support 2 that is connected with door leaf, the travel(l)ing rest 3 that is connected with doorframe and is connected in the air spring device 1 between the two stands like Fig. 1; This air spring device 1 comprises piston rod 11, is connected in piston 13, cylinder block 12, spring 14, air damping adjuster 15 and door location self-locking mechanism on the piston rod 11; Be provided with one-way sealing structure 4 between piston 13 and cylinder block 12 inner chambers, air damping adjuster 15 is arranged at cylinder block 12 rear ends, and wherein door location self-locking mechanism is designed to relief groove 16; The inner chamber that this relief groove 16 is arranged at cylinder block 12 is near rear end; The inner chamber gas of cylinder block 12 is communicated with ambient atmos when piston 13 these relief grooves 16 of process, and air pressure reduces, piston rod 11 this moment quick retraction cylinder block 12 under spring 14 effects; Thereby drive the door leaf quick-make; Completion padlock operation, this location self-locking mechanism is simple in structure, and need not too accurate setting and can realize reducing pressure; The body that air channel is arranged in piston rod 11 need not to be designed to simultaneously; And then strengthened the intensity of this piston rod 11, in the application life of improving product, also reduced cost of manufacture.

Like Fig. 2 or shown in Figure 3, the one-way sealing structure 4 of this embodiment includes bulla 41 and sealing ring 42, and this bulla 41 is arranged at the tail end of piston rod 11; Bulla 41 rounded plates have three or four air vents 411 on it, leave the gap between this bulla 41 and the piston 13; Sealing ring 42 is arranged in this gap and in the gap, moves by a small margin; Sealing ring 42 outer rims of this embodiment and the internal chamber wall of cylinder block 12 are close-fitting, and leave the gap between piston 13 and the internal chamber wall, are provided with drive end bearing bracket 5 at the front end sleeve of cylinder block 12; Spring 14 is placed on the piston rod 11 and between the drive end bearing bracket 5 of piston 13 and cylinder block 12; Be arranged with rear end cap 6 in the rear end of cylinder block 12 equally, the middle part of rear end cap 6 has screwed hole 61, and air damping adjuster 15 is designed to screw and is rotatably connected in this screwed hole 61.The relief groove 16 of this embodiment is arranged on the internal chamber wall of cylinder block 12, a bit ofly forms relief groove 16 with the identical bar-shaped trough of cylinder block 12 length directions through internal chamber wall outwards is arranged with.When piston rod 11 up draws (promptly opening the door); Bulla 41 up moves to contact and drive on the sealing ring 42 with sealing ring 42 and moves; Have space between sealing ring 42 and the piston 13 this moment, and air vent 411 is arranged on the bulla 41, so gas can be from the gap between piston 13 and cylinder block 12 internal chamber walls through getting into cylinder block 12 inner chambers of bulla 41 belows through air vent 411 again; This moment, spring 14 was compressed; Its pulling force only need overcome the elastic force of spring 14 can be opened door, brisk, the purpose rapidly that realizes opening the door, and it is as shown in Figure 3 up to move the most most state to; When the pulling force that unclamps piston rod 11, the door beginning is closed, and this moment, piston rod 11 began to move down under the elastic force effect of spring 14; Simultaneously piston 13 moves down and contact and drive sealing ring 42 with sealing ring 42 and move down, and sealing ring 42 closely contacts with piston 13 at this moment, thereby makes sealing ring 42 that the gap between piston 13 and internal chamber wall is stopped up; So the inner chamber of bulla 41 below cylinder block 12 forms airtight cavity, along with the decline of piston rod 11, cavity volume reduces; Air pressure increases, so piston rod 11 moves down slowly, i.e. door is slowly closed in realization; And be closed to when similar when door, the sealing ring 42 of this moment is through the position at relief grooves 16 places, owing to be the relief groove 16 that internal chamber wall is recessed to form; So can form the breach of relief groove 16 cross-sectional sizes between sealing ring 42 and the internal chamber wall; Gas in the inner chamber flows out rapidly through this breach and makes the inner chamber decompression, and piston rod 11 down retraction cylinder block 12 fast under spring 14 elastic force effects is quickened closed thereby drive door leaf; The operation of completion padlock, its state that closes behind the door is as shown in Figure 2.

As shown in Figure 1; This embodiment has outwards extended an arc bent plate 62 at the edge of rear end cap 6; The fixed head that upwards arches upward in the middle of fixed support 2 is designed to; Correspondence was provided with connecting hole 21 on arched upward the position in the centre of fixed support 2, and the length of this connecting hole 21 is consistent with the width of arc bent plate 62, can realize in the connecting hole 21 that through arc bent plate 62 is inserted into air spring device 1 is connected with fixed support 2; And travel(l)ing rest 3 is designed to the L type; It is fixed on the doorframe on one side; Another side offers a circular hole 31, and the head end of this piston rod 11 is bent into and is 90 ° crotch 111 with piston rod 11, with crotch 111 fasteners in this circular hole 31 and realize that air spring device 1 is connected with travel(l)ing rest 3.Can realize that through above-mentioned connection air spring device 1 is installed to door simply fast go up to be used, and dismounting is also convenient and swift when not using.In order to realize that door can stop the location at any open angle, this embodiment also is provided with a thresholding bit architecture 7, and this thresholding bit architecture 7 is a bending plate; Wherein offer the through hole 71 that can penetrate piston rod 11 on the plate face, the bending end through thresholding bit architecture 7 withstands on the drive end bearing bracket 5 of cylinder block 12 and makes through hole 71 angular deflections, thereby makes through hole 71 and piston rod 11 stuck; Therefore as required; When door is opened to the angle that needs the location,, unclamp the hand that pushes or pull then with drive end bearing bracket 5 places of thresholding bit architecture 7 consistent cylinder block 12; Can realize that through hole 71 and piston rod 11 are stuck, and door is in this location, angle place.

Although the utility model is to describe with reference to specific embodiment, this description does not also mean that the restriction of the utility model formation.With reference to the description of the utility model, other of the disclosed embodiments change, and all can expect to those skilled in the art, and this variation should belong in the affiliated claim institute restricted portion.

Claims

1. air spring door closer simple in structure; Comprise the fixed support (2) that is connected with door leaf, the travel(l)ing rest (3) that is connected with doorframe and be connected in the air spring device (1) between the two stands; Said air spring device (1) comprises piston rod (11), cylinder block (12), is connected in piston (13), spring (14), air damping adjuster (15) and door location self-locking mechanism on the piston rod (11); Be provided with one-way sealing structure (4) between said piston (13) and cylinder block (12) inner chamber; Said air damping adjuster (15) is arranged at cylinder block (12) rear end; It is characterized in that: said door location self-locking mechanism is designed to relief groove (16); Said relief groove (16) is arranged at the inner chamber of cylinder block (12) near rear end, and the inner chamber air pressure of cylinder block (12) reduces and realizes quickening blind catch and lock when said piston (13) the said relief groove of process (16).

2. air spring door closer simple in structure according to claim 1; It is characterized in that above-mentioned relief groove (16) is arranged on the internal chamber wall of cylinder block (12), a bit ofly form relief groove (16) with the identical bar-shaped trough of cylinder block (12) length direction through internal chamber wall outwards is arranged with.

3. air spring door closer simple in structure according to claim 1; It is characterized in that above-mentioned one-way sealing structure (4) includes bulla (41) and sealing ring (42); Said bulla (41) is arranged at the tail end of piston rod (11); Leave the gap between said bulla (41) and the above-mentioned piston (13), said sealing ring (42) is arranged in this gap and in the gap, moves by a small margin.

4. air spring door closer simple in structure according to claim 3; It is characterized in that the outer rim of above-mentioned sealing ring (42) and the internal chamber wall of cylinder block (12) closely cooperate, when said sealing ring (42) passes through the position at relief groove (16) place, form the breach of relief groove cross-sectional sizes between said sealing ring (42) and the internal chamber wall.

5. air spring door closer simple in structure according to claim 1; The front end sleeve that it is characterized in that above-mentioned cylinder block (12) is provided with drive end bearing bracket (5), and above-mentioned spring (14) is placed on the piston rod (11) and is positioned between the drive end bearing bracket (5) of piston (13) and cylinder block (12).

6. air spring door closer simple in structure according to claim 1; The rear end that it is characterized in that above-mentioned cylinder block (12) is arranged with rear end cap (6); The middle part of said rear end cap (6) has screwed hole (61), and above-mentioned air damping adjuster (15) is designed to screw and is rotatably connected in the said screwed hole (61).

7. air spring door closer simple in structure according to claim 6; The edge that it is characterized in that above-mentioned rear end cap (6) has outwards extended an arc bent plate (62); Said fixing support (2) is gone up correspondence and is provided with connecting hole (21), can realize in the connecting hole (21) that through arc bent plate (62) is inserted into air spring device (1) is connected with fixed support (2).

8. air spring door closer simple in structure according to claim 1; It is characterized in that above-mentioned travel(l)ing rest (3) is designed to the L type; It is fixed on the doorframe on one side; Another side offers a circular hole (31), and the head end of above-mentioned piston rod (11) is bent into piston rod (11) and is 90 ° crotch (111), and said crotch (111) fastener is in said circular hole (31) and realize that air spring device (1) is connected with travel(l)ing rest (3).

9. air spring door closer simple in structure according to claim 1; It is characterized in that also including thresholding bit architecture (7); Said thresholding bit architecture (7) is a bending plate; Wherein offer the through hole (71) that can penetrate piston rod (11) on the plate face, the front end that the bending end through said thresholding bit architecture (7) withstands on cylinder block (12) make through hole (71) angular deflection and with the stuck door of realizing of piston rod (11) in location, opening angle place arbitrarily.