CN218815884U

CN218815884U - Pneumatic floor spring

Info

Publication number: CN218815884U
Application number: CN202223149995.7U
Authority: CN
Inventors: 于宝峰; 司琪; 司航; 司祥含
Original assignee: Chengde Tenaili Gated Technology Co ltd
Current assignee: Chengde Tenaili Gated Technology Co ltd
Priority date: 2022-11-23
Filing date: 2022-11-23
Publication date: 2023-04-07
Anticipated expiration: 2032-11-23

Abstract

The utility model provides a pneumatic floor spring has solved the problem that prior art floor spring structure is complicated, awkward. The pneumatic floor spring includes an inner housing; the driving main shaft is vertically arranged in the inner shell and can freely rotate, and the tail end of the driving main shaft extends out of the inner shell; the angle rotor is positioned in the inner shell and fixed on the driving main shaft, the angle rotor is in an oval shape, and at least two grooves are formed in the outer edge of the angle rotor; the reset mechanism is positioned in the inner shell and is in contact with the angle rotating piece, and acting force exists between the angle rotating piece and the reset mechanism. The utility model discloses a pneumatic floor spring simple structure, convenient to use can realize the self return of revolving door, and can carry out corresponding adjustment to different revolving doors, have fine practicality.

Description

Pneumatic floor spring

Technical Field

The utility model relates to a revolving door accessory technical field especially indicates a simple structure, convenient to use's pneumatic floor spring.

Background

The floor spring is a fitting used for closing doors, is widely installed and applied to the revolving doors in various occasions, can realize automatic door closing after the revolving doors are opened, can reduce impact force when the revolving doors are closed, and slows down the door closing speed, thereby avoiding the collision of door leaves to human bodies in the closing process. The traditional floor spring is a hydraulic floor spring, and has the following defects: 1. the structure is complex, the material consumption is high, and the cost is high; 2. oil leakage is easy to occur; 3. hydraulic oil can receive external environment temperature influence in extremely cold district, and when external temperature was less than the freezing point of hydraulic oil, fluid pressure type floor spring can lock to lead to the unable opening of a body or close.

SUMMERY OF THE UTILITY MODEL

The utility model provides a pneumatic floor spring has solved the problem that prior art floor spring structure is complicated, awkward.

The technical scheme of the utility model is realized like this: a pneumatic ground spring, comprising:

an inner housing;

the driving main shaft is vertically arranged in the inner shell and can freely rotate, and the tail end of the driving main shaft extends out of the inner shell;

the angle rotor is positioned in the inner shell and fixed on the driving main shaft, the angle rotor is in an oval shape, and at least two grooves are formed in the outer edge of the angle rotor;

the resetting mechanism is positioned in the inner shell and is in contact with the angle rotating piece, and acting force exists between the angle rotating piece and the resetting mechanism.

In a preferred embodiment, the reset mechanism comprises,

the tail end of the air chamber shell is closed, a piston in sealing contact with the air chamber shell is arranged in the air chamber shell, and a high-pressure air chamber is formed between the piston and the air chamber shell;

the piston rod and the piston are fixed into a whole and synchronously move along the length direction of the air chamber shell so as to change the size of the high-pressure air chamber;

the driving wheel is freely and rotatably arranged at the tail end of the piston rod and is abutted against the outer edge of the angle rotating piece;

when the angle rotor rotates, the piston is pushed to move.

As a preferred embodiment, a guide block and a front end oil seal are fixed at the head end of the air chamber shell, the front end oil seal is in sealing contact with the inner wall of the air chamber shell, and the piston rod penetrates through the guide block and the front end oil seal;

the tail end of the air chamber shell is fixedly provided with an adjusting tail plug, the adjusting tail plug is in sealing contact with the inner wall of the air chamber shell, an adjusting bolt matched with the adjusting tail plug penetrates through the middle of the adjusting tail plug, and the front end of the adjusting bolt abuts against the adjusting tail plug.

As a preferred embodiment, the outer shell is further sleeved outside the inner shell, the outer shell is fixedly arranged, a plurality of angle adjusting bolts are symmetrically arranged between the inner wall of the outer shell and the outer wall of the inner shell, and the angle of the inner shell can be adjusted through the angle adjusting bolts.

As a preferred embodiment, the inner housing is fixed by a lower base and an upper cover, corresponding bearings are arranged on the lower base and the upper cover, and the driving spindle is rotatably mounted in the bearings.

In a preferred embodiment, a pin is fixedly arranged at the end of the piston rod, and the driving wheel freely rotates on the pin.

In a preferred embodiment, the inner housing is further provided with height adjusting bolts at four corners for adjusting the height of the inner housing.

In a preferred embodiment, the number of the grooves is four and the grooves are symmetrically arranged on the angle rotating piece.

After the technical scheme is adopted, the beneficial effects of the utility model are that: the utility model discloses a when pneumatic floor spring used, it is fixed as an organic whole with the revolving door through the drive main shaft, when the revolving door rotates, drive main shaft and angle rotor synchronous revolution, and then make the angle rotor produce the effort to canceling release mechanical system, when canceling release mechanical system acts on in one of them recess that angle rotor outer fringe was seted up, canceling release mechanical system and angle rotor this moment stay in a position promptly, the location of revolving door has been realized, and when people gently push away the revolving door again, in case canceling release mechanical system breaks away from the recess, under canceling release mechanical system's effect, automatic re-setting can be realized to oval-shaped angle rotor, this pneumatic floor spring overall structure is simple, high durability and convenient use, it has fine practicality to compare in current floor spring.

The reciprocating linear motion of the piston rod and the piston during the rotation of the angle rotor can be well realized through the structural form that the freely rotating driving wheel is abutted against the outer edge of the angle rotor, and then the size of a high-pressure air chamber formed by the piston and an air chamber shell is changed, so that the air pressure in the high-pressure air chamber is changed, the acting force received by the piston is changed accordingly, and the rotating speed of the revolving door and the acting force required by people for pushing the revolving door are finally limited. Particularly, when the revolving door is in the closed condition, atmospheric pressure in the high-pressure air chamber is minimum, the drive wheel was located one of them recess this moment, people promoted the revolving door, promote the piston motion through oval-shaped angle revolving fragment, compression high-pressure air chamber, atmospheric pressure in the high-pressure air chamber crescent, people push away the used power of door and also need increase, when people's pine opened the door, under the effect of high-pressure air chamber internal gas pressure, the piston rod presumes angle revolving fragment counter-rotation again, resume to initial position, realize closing of revolving door. Of course, the positioning of the angle rotating piece and the revolving door can be realized as long as the driving wheel is embedded into any one groove on the angle rotating piece.

The tail plug is fixedly adjusted through the tail end of the air chamber shell, the tail seal is adjusted through setting, the tail seal can move by being adjusted through the top of the rotary adjusting bolt, air pressure in the air chamber is changed, acting force required by people for pushing the revolving door and the return speed of the revolving door are changed, and the structure can be adjusted according to the revolving doors with different weights and different use scenes.

The outer shell is arranged outside the inner shell, the angle of the inner shell can be adjusted according to needs by arranging a plurality of angle adjusting bolts, and finally the angles of the driving main shaft and the angle rotor are adjusted to adapt to installation of the revolving door.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 isbase:Sub>A schematic view of the structure A-A in FIG. 1;

in the figure: 1-an inner shell; 2-driving the main shaft; 3-angle rotation sheet; 4-a groove; 5-air chamber shell; 6-a piston; 7-high pressure air chamber; 8-a piston rod; 9-driving wheels; 10-a guide block; 11-front end oil seal; 12-adjusting tail blocking; 13-adjusting tail seal; 14-adjusting the bolt; 15-an outer shell; 16-angle adjusting bolts; 17-a lower base; 18-upper cover; 19-a bearing; 20-pin; 21-height adjusting bolt.

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 of the present invention, all other embodiments obtained by a person skilled in the art without making creative efforts belong to the protection scope of the present invention.

Example (b):

as shown in fig. 1 and fig. 2 together, an embodiment of the pneumatic floor spring of the present invention includes an outer casing 15, the outer casing 15 is a cubic structure, the outer casing 15 is fixed at the rotating shaft of the revolving door when being installed, and the inner part of the outer casing is used for accommodating other components.

An inner housing 1 is first arranged in the outer housing 15, the inner housing 1 is also in a cubic structure, and the inner housing 1 also has an inner cavity for mounting other components. The whole inner shell 1 can move relative to the outer shell 15, the two are not fixed into a whole, a plurality of angle adjusting bolts 16 are symmetrically arranged between the outer wall of the inner shell 1 and the inner wall of the outer shell 15, as shown in the figure, two angle adjusting bolts 16 are arranged on the long edge of the inner shell 1, one angle adjusting bolt 16 is arranged on the short edge of the inner shell, and the angle of the inner shell 1 can be adjusted as required through the angle adjusting bolts 16 to be suitable for the installation position of the revolving door. Further, height adjusting bolts 21 are provided at four corners of the inner case 1, and the height of the inner case 1 can be adjusted by the four height adjusting bolts 21.

As shown in fig. 2, the whole inner housing 1 is composed of a lower base 17 and an upper cover 18, which enclose a hollow inner cavity. The left side positions of the lower base 17 and the upper cover 18 are provided with bearings 19 corresponding to each other up and down, and the bearings 19 are internally provided with the driving spindle 2, so that the driving spindle 2 can rotate freely, the upper end of the driving spindle 2 is non-circular and is directly fixed with a revolving door (not shown in the figure), and during installation, the driving spindle 2 and the revolving door need to be ensured to coincide with each other at the rotating center, and when people push the revolving door, the revolving door and the driving spindle 2 rotate synchronously. In order to realize the automatic switching of revolving door, be fixed with the angle rotor 3 that is located the inside of interior casing 1 on drive main shaft 2, this angle rotor 3 is the utility model provides a key component, it is oval-shaped lamellar structure, and installs on the horizontal direction, and when drive main shaft 2 was rotatory, angle rotor 3 also synchronous revolution. At least two grooves 4 (four are shown in the embodiment) are arranged at the outer edge of the angle rotating piece 3, the number of the grooves 4 is required to be selected according to the service conditions of different rotating doors, the structures of the four grooves are suitable for the rotating door rotating by 360 degrees, the structures of the two grooves are suitable for the rotating door rotating by 90 degrees, the structures of the three grooves are suitable for the rotating door rotating by 180 degrees, and the grooves 4 are used for positioning the driving spindle 2 and further realizing the positioning of the rotating door. As shown in fig. 1, four grooves 4 are symmetrically arranged on the oval angle rotor 3, and the rotation angle between two adjacent grooves 4 is 90 °, and when the angle rotor 3 rotates 90 °, the revolving door also rotates 90 °. The inner shell 1 is also provided with a reset mechanism, the reset mechanism is in contact with the angle rotor 3, acting force exists between the reset mechanism and the angle rotor 3 all the time, when the reset mechanism is embedded into one groove 4 of the angle rotor 3, under the action of no other external force (such as thrust applied to the revolving door by people), the angle rotor 3, the driving spindle 2 and the revolving door are positioned and cannot rotate. And when people exert a thrust for the revolving door for revolving door, drive main shaft 2 and angle rotor 3 rotate an angle, canceling release mechanical system breaks away from out from the recess 4 of angle rotor 3, under the influence of effort each other, canceling release mechanical system promotes oval angle rotor 3 to rotate promptly, until canceling release mechanical system imbeds in another recess 4 of angle rotor 3, has realized revolving door 90 rotation this moment promptly. The reset mechanism in this embodiment is described in detail below.

This canceling release mechanical system at first includes an air chamber casing 5, its left end and right-hand member are all sealed, be provided with guide block 10 and front end oil blanket 11 at the left end department, right-hand member department is provided with adjusts tail stifled 12 and adjusts tail and seals 13, still be provided with piston 6 between front end oil blanket 11 and the regulation tail seals 13, be sealing contact between the inner wall of this piston 6 and air chamber casing 5, make piston 6 and adjust and form a confined cavity between the tail seals 13, this cavity is high-pressure air chamber 7 promptly, the gas pressure in this high-pressure air chamber 7 is greater than outside atmospheric pressure, make piston 6 receive an effort left all the time. And a piston rod 8 is fixedly arranged on the piston 6, the piston rod 8 extends leftwards to penetrate through the front end oil seal 11 and the guide block 10, a vertical pin 20 is fixed at the left end of the piston rod 8, a driving wheel 9 capable of freely rotating is arranged on the pin 20, and the driving wheel 9 corresponds to the position of the angle rotor 3, so that the driving wheel 9 can be embedded into the groove 4 on the outer edge of the angle rotor 3. In the state shown in fig. 1, the driving wheel 9 is inserted into one of the grooves 4, and since the driving wheel 9 is always pressed against the groove 4 by the high pressure in the high pressure air chamber 7, the angle rotor 3, the driving spindle 2 and the revolving door are positioned without the external force, and the air pressure in the high pressure air chamber 7 is minimum. When people push the revolving door to rotate, the acting force applied to the revolving door by people overcomes the acting force applied to the angle rotating piece 3 by the high-pressure air chamber 7, the revolving door, the driving main shaft 2 and the angle rotating piece 3 start to rotate, as long as the revolving door rotates by a smaller angle, the driving wheel 9 rolls out of the original groove 4, at the moment, people slightly apply the acting force to push the revolving door to continue to rotate, in the continuous rotating process, the angle rotating piece 3 moves rightwards by abutting against the driving wheel 9, the piston rod 8 and the piston 6 to compress the high-pressure air chamber 7, the air pressure in the high-pressure air chamber 7 is gradually increased until the revolving door rotates by 90 degrees, the driving wheel 9 is embedded into the other adjacent groove 4, at the moment, the positioning of the revolving door is realized again, and the air pressure in the high-pressure air chamber 7 is the maximum at the moment. Certainly, when people push the revolving door to rotate by less than 90 degrees, once people loosen the revolving door, the acting force applied to the revolving door disappears, and the revolving door can be automatically reset under the action of high pressure in the high-pressure air chamber 7.

Because different revolving doors have different weights, the thrust and the return speed required by the rotation of the revolving doors have different requirements, the embodiment also has the advantages that the adjusting bolt 14 matched with the thread of the adjusting bolt is arranged in the middle position of the adjusting tail plug 12 in a penetrating way, the front end of the adjusting bolt 14 is propped against the adjusting tail plug 13, the adjusting tail plug 13 can be pushed to move leftwards by rotating the adjusting bolt 14, and then the size of the high-pressure air chamber 7 is changed, so that the effect of changing the air pressure in the high-pressure air chamber 7 is achieved, and the revolving doors with different weights are met.

The utility model discloses a pneumatic floor spring simple structure, convenient to use can realize the self return of revolving door, and can carry out corresponding adjustment to different revolving doors, have fine practicality.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Pneumatic floor spring, its characterized in that includes:

an inner housing (1);

the driving main shaft (2) is vertically arranged in the inner shell (1) and can freely rotate, and the tail end of the driving main shaft (2) extends out of the inner shell (1);

the angle rotating piece (3) is positioned in the inner shell (1) and fixed on the driving main shaft (2), the angle rotating piece (3) is in an oval shape, and at least two grooves (4) are formed in the outer edge of the angle rotating piece;

the resetting mechanism is positioned in the inner shell (1) and is in contact with the angle rotating sheet (3), and acting force exists between the angle rotating sheet (3) and the resetting mechanism.

2. The pneumatic floor spring of claim 1, wherein: the reset mechanism comprises

The tail end of the air chamber shell (5) is closed, a piston (6) in sealing contact with the air chamber shell is arranged in the air chamber shell, and a high-pressure air chamber (7) is formed between the piston (6) and the air chamber shell (5);

the piston rod (8) is fixed with the piston (6) into a whole and synchronously moves along the length direction of the air chamber shell (5), so that the size of the high-pressure air chamber (7) is changed;

the driving wheel (9) is arranged at the tail end of the piston rod (8) in a free rotating mode, and the driving wheel (9) is abutted to the outer edge of the angle rotating piece (3);

when the angle rotor (3) rotates, the piston (6) is pushed to move.

3. A pneumatic floor spring as claimed in claim 2, wherein: a guide block (10) and a front-end oil seal (11) are fixed at the head end of the air chamber shell (5), the front-end oil seal (11) is in sealing contact with the inner wall of the air chamber shell (5), and the piston rod (8) penetrates through the guide block (10) and the front-end oil seal (11);

the tail end of the air chamber shell (5) is fixed with an adjusting tail plug (12), an adjusting tail seal (13) in sealing contact with the inner wall of the air chamber shell is further arranged, an adjusting bolt (14) matched with the adjusting tail plug is arranged in the middle of the adjusting tail plug (12) in a penetrating mode, and the front end of the adjusting bolt (14) abuts against the adjusting tail seal (13).

4. A pneumatic floor spring as claimed in any one of claims 1 to 3, wherein: the outside of interior casing (1) still overlaps there is shell body (15), shell body (15) are fixed to be set up, the symmetry is equipped with a plurality of angle adjusting bolt (16) between the inner wall of shell body (15) and the outer wall of interior casing (1), through angle adjusting bolt (16) can adjust the angle of interior casing (1).

5. The pneumatic floor spring of claim 1, wherein: the inner shell (1) is formed by fixing a lower base (17) and an upper cover (18), corresponding bearings (19) are arranged on the lower base (17) and the upper cover (18), and the driving main shaft (2) is rotatably arranged in the bearings (19).

6. A pneumatic floor spring as claimed in claim 2, wherein: the tail end of the piston rod (8) is fixedly provided with a pin (20), and the driving wheel (9) freely rotates on the pin (20).

7. The pneumatic floor spring of claim 1, wherein: the four corners of the inner shell (1) are also provided with height adjusting bolts (21) for adjusting the height of the inner shell.

8. The pneumatic floor spring of claim 1, wherein: the number of the grooves (4) is four and the grooves are symmetrically arranged on the angle rotating piece (3).