CN220059269U - Door closing device with adjustable door closing speed - Google Patents
Door closing device with adjustable door closing speed Download PDFInfo
- Publication number
- CN220059269U CN220059269U CN202321646258.XU CN202321646258U CN220059269U CN 220059269 U CN220059269 U CN 220059269U CN 202321646258 U CN202321646258 U CN 202321646258U CN 220059269 U CN220059269 U CN 220059269U
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- Prior art keywords
- spring
- door closing
- cam
- rotating shaft
- piece
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- 238000013016 damping Methods 0.000 claims abstract description 27
- 210000001503 joint Anatomy 0.000 claims abstract description 8
- 238000009434 installation Methods 0.000 claims description 21
- 230000007246 mechanism Effects 0.000 claims description 15
- 230000003139 buffering effect Effects 0.000 claims description 3
- 238000005381 potential energy Methods 0.000 abstract description 5
- 230000000694 effects Effects 0.000 abstract description 3
- 238000009825 accumulation Methods 0.000 description 2
- 125000003003 spiro group Chemical group 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Closing And Opening Devices For Wings, And Checks For Wings (AREA)
Abstract
The utility model discloses a door closing device with adjustable door closing speed, which comprises a shell, a buffer damper, a rotating shaft and a return spring, wherein a shaft accommodating cavity for installing the rotating shaft is formed in the shell, the buffer damper and the return spring are arranged in the shell and are respectively positioned on the front side and the rear side of the rotating shaft, a cam is arranged on the rotating shaft and is triangular, the cam is in butt joint with the buffer damper and the return spring, a first installing cavity for installing the buffer damper and a second installing cavity for installing the return spring are formed in the shell and are positioned on the two sides of the shaft accommodating cavity, one end, far away from the rotating shaft, in the second installing cavity is in butt joint with the return spring, the elastic potential energy of the return spring is adjusted, so that the door closing speed is adjusted, one end, far away from the rotating shaft, in the first installing cavity is in butt joint with a damping adjusting piece, and the damping adjusting piece is adjusted according to the potential energy released by the return spring, so that a buffer effect is realized.
Description
Technical Field
The utility model relates to the technical field of door and window accessories, in particular to a door closing device with adjustable door closing speed.
Background
The door closer is a device designed to assist opening and closing operations of doors and windows. The door closer has the significance of automatically closing the door, protecting the door frame and the door body, and is widely applied to the home as well as business and public buildings.
The utility model discloses a door device is closed to axle center, including device shell, damping buffer, rotatory door spindle, rotatory piece positioning seat and buffer spring, the damping buffer is installed in device shell left part, rotatory door spindle is located the device shell middle part, rotatory door spindle bottom is equipped with the door holder, rotatory door spindle is equipped with the door spindle rotatory piece in the device shell inside, the door spindle rotatory piece is triangle-shaped, the three angle of door spindle rotatory piece all has the fillet to handle, door spindle rotatory piece is in contact with the damping buffer, device shell right part is equipped with the positioning seat shifting chute, rotatory piece positioning seat and buffer spring install in the positioning seat shifting chute, buffer spring installs in rotatory piece positioning seat right side, and above-mentioned patent is through directly installing buffering buffer and reset spring in the shell, and unable regulation closes a speed, and the suitability is not strong, leads to the competitiveness of product low.
Disclosure of Invention
The present utility model has been made in view of the above-mentioned problems occurring in the prior art, and an object of the present utility model is to provide a door closing device with an adjustable door closing speed.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the door closing device with adjustable door closing speed comprises a housing, a buffer damper, a rotary shaft and a return spring, wherein a shaft accommodating cavity for installing the rotary shaft is arranged on the housing, the buffer damper and the return spring are arranged in the housing and are respectively positioned at the front side and the rear side of the rotary shaft, a cam is arranged on the rotary shaft, the cam is triangular, the cam is abutted with the buffer damper and the return spring, wherein,
the damping damper is characterized in that a first installation cavity for installing the damping damper and a second installation cavity for installing the reset spring are formed in two sides of the shaft accommodating cavity on the shell, one end, far away from the rotating shaft, of the first installation cavity is connected with a damping adjusting piece in a threaded mode, the damping adjusting piece is connected with the damping damper in a butt mode, and one end, far away from the rotating shaft, of the second installation cavity is connected with a force adjusting mechanism in a threaded mode, and the force adjusting mechanism is connected with the reset spring in a butt mode.
Preferably, one end of the cylinder body of the buffer damper is provided with a positioning lug, the front end of the cam is provided with a first positioning groove, the positioning lug is matched and abutted with the first positioning groove when the door closing device is in a closed state, two side edges of the cam are respectively provided with a second positioning groove, and the positioning lug is matched and abutted with the second positioning groove when the door closing device is in an open state.
Preferably, the force adjusting mechanism comprises a spring top piece, a limiting piece and a force adjusting piece, wherein the spring top piece is in butt joint with the reset spring and movably arranged in the second installation cavity, the end part of the spring top piece is provided with a positioning column inserted into the inner side of the reset spring, the limiting piece is arranged at the end part of the second installation cavity, the limiting piece is connected with the force adjusting piece in a threaded manner, and the force adjusting piece passes through the limiting piece and is in butt joint with the spring top piece.
Preferably, the shell is provided with a mounting groove corresponding to the shaft accommodating cavity, the mounting groove is provided with a cover plate in an adapting way, one end of the rotating shaft is rotatably arranged at the bottom of the shaft accommodating cavity, and the other end of the rotating shaft extends out of the cover plate.
Preferably, a first rotating groove is formed in the bottom of the shaft accommodating cavity, a second rotating groove is formed in the bottom of the cover plate, and two ends of the rotating shaft are connected with the first rotating groove and the second rotating groove through sliding bearings respectively.
Preferably, a spring sleeve is arranged at the end part of the spring, the spring sleeve is abutted with the cam, and a spring platform is arranged on the cam in a manner of correspondingly abutting against the spring sleeve.
Compared with the prior art, the utility model has the beneficial effects that: one end spiro union that keeps away from the rotation axis in the second installation intracavity has dynamics adjustment mechanism, this dynamics adjustment mechanism with reset spring butt reaches through adjusting reset spring's elastic potential energy and adjusts the speed of closing the door, and one end spiro union that keeps away from the rotation axis in first installation intracavity has damping adjustment spare, adjusts damping adjustment spare according to reset spring released potential energy, realizes the cushioning effect.
Drawings
Fig. 1 is a schematic structural view of the present utility model.
Fig. 2 is a schematic cross-sectional view of the present utility model.
Fig. 3 is a schematic view of the main body installation of the present utility model.
Fig. 4 is a schematic view of the present utility model in a closed state.
Fig. 5 is a schematic view of the open state of the present utility model.
FIG. 6 is a schematic view of the installation of a rotating shaft according to the present utility model.
Fig. 7 is a schematic view showing installation of the buffering damper and the return spring in the present utility model.
In the figure: the housing 1, the shaft housing chamber 11, the first mounting chamber 12, the second mounting chamber 13, the mounting groove 14, the first rotation groove 15, the buffer damper 2, the positioning projection 21, the rotation shaft 3, the cam 30, the first positioning groove 301, the second positioning groove 302, the spring platform 303, the return spring 4, the damping adjustment member 5, the force adjustment mechanism 6, the spring top 61, the stopper 62, the force adjustment member 63, the positioning post 64, the cover plate 7, the second rotation groove 71, the slide bearing 8, and the spring housing 9.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
The door closing device with adjustable door closing speed as shown in fig. 1 to 7 comprises a shell 1, a buffer damper 2, a rotating shaft 3 and a reset spring 4, wherein a shaft accommodating cavity 11 for installing the rotating shaft 3 is formed in the shell 1, the buffer damper 2 and the reset spring 4 are arranged in the shell 1 and are respectively positioned on the front side and the rear side of the rotating shaft 3, a cam 30 is arranged on the rotating shaft 3, the cam 30 is triangular, the cam 30 is in butt joint with the buffer damper 2 and the reset spring 4, a first installing cavity 12 for installing the buffer damper 2 and a second installing cavity 13 for installing the reset spring 4 are formed in the two sides of the shaft accommodating cavity 11 in the shell 1, one end, far away from the rotating shaft 3, of the first installing cavity 12 is in threaded connection with a damping adjusting piece 5, one end, far away from the rotating shaft 3, of the second installing cavity 13 is in threaded connection with a force adjusting mechanism 6, the force adjusting mechanism 6 is in threaded connection with the reset spring 4, one end, far away from the rotating shaft 3, of the second installing cavity 13 is in threaded connection with the force adjusting mechanism 6, the force adjusting piece is in threaded connection with the reset spring 4, the damping adjusting piece is in threaded connection with the damping adjusting piece 5, the damping adjusting piece is in the end is in the threaded connection with the damping adjusting piece 5, and the damping piece is in the damping adjusting piece is in the end, and the damping piece is in the damping adjusting piece.
As a preferred embodiment of the present utility model, one end of the cylinder portion of the buffer damper 2 is provided with a positioning protrusion 21, the front end of the cam 30 is provided with a first positioning groove 301, the positioning protrusion 21 is matched and abutted with the first positioning groove 301 when the door closing device is in a 0 degree closed state, both sides of the cam 30 are provided with second positioning grooves 302, and the positioning protrusion 21 is matched and abutted with the second positioning groove 302 when the door closing device is in a 90 degree open state, so as to realize a positioning effect.
As a preferred embodiment of the present utility model, the force adjusting mechanism 6 includes a spring top member 61, a limiting member 62 and a force adjusting member 63, where the spring top member 61 is abutted against the return spring 4 and movably disposed in the second mounting cavity 13, a positioning post 64 inserted inside the spring is disposed at an end of the spring top member 61, the limiting member 62 is disposed at an end of the second mounting cavity 13, the limiting member 62 is screwed with the force adjusting member 63, the force adjusting member 63 passes through the limiting member 62 to be abutted against the spring top member 61, and the force adjusting member 63 preferably adopts an hexagon socket head cap bolt, where the limiting member 62 is mounted in the second mounting cavity 13 by external threads and connected with the force adjusting member 63 by internal threads, so that the limiting member 62 is used as the other force adjusting member 63.
As a preferred embodiment of the present utility model, the housing 1 is provided with a mounting groove 14 corresponding to the shaft accommodating cavity 11, the mounting groove 14 is provided with a cover plate 7 in an adapting manner, one end of the rotating shaft 3 is rotatably arranged at the bottom of the shaft accommodating cavity 11, the other end extends out of the cover plate 7, the bottom of the shaft accommodating cavity 11 is provided with a first rotating groove 15, the bottom of the cover plate 7 is provided with a second rotating groove 71, and two ends of the rotating shaft 3 are respectively connected with the first rotating groove 15 and the second rotating groove 71 through sliding bearings 8.
As a preferred embodiment of the utility model, the cam 30 is provided with the spring platform 303, the end part of the return spring 4 is provided with the spring sleeve 9, and the spring sleeve 9 is abutted against the spring platform 303 in the closing state of the door closing device, so that friction between the return spring 4 and the cam 30 can be reduced, and damage to the cam 30 and the return spring 4 can be avoided.
During installation, the bearing is sleeved on the rotating shaft 3 and then is placed in the shaft accommodating cavity 11, then the buffer damper 2 and the return spring 4 are respectively installed in the first installation cavity 12 and the second installation cavity 13, the buffer damper 2 is limited by the damping adjusting piece 5 at the end part, the return spring 4 is limited by the force adjusting mechanism 6 at the end part, the positioning protruding block 21 of the buffer damper 2 corresponds to the first positioning groove 301 or the second positioning groove 302 of the protruding block of the rotating shaft 3, finally the cover plate 7 is installed in the installation groove 14, and the end part of the rotating shaft 3 extends out of the cover plate 7 to be connected with the connecting arm or other connecting mechanisms.
When the door closing device is in a closed state, the first positioning groove 301 of the rotating shaft lug is positioned at the center of the buffer damper 2, namely the positioning lug 21 of the buffer damper 2 is contacted with the first positioning groove 301, and the spring sleeve 9 at the end part of the spring is abutted with the spring platform 303, so that positioning is realized;
when the door closer is opened, the cam 30 rotates along with the rotating shaft 3, the return spring 4 is compressed at this time, and when the rotating shaft 3 rotates to 90 °, the positioning projection 21 of the buffer damper 2 contacts with the second positioning groove 302, so that the rotating shaft 3 is positioned, and the return spring 4 is in a compressed state at this time;
when the door closing device is switched from the open state to the closed state, the cam 30 is separated from the second positioning groove 302, the positioning state of the rotating shaft 3 is released, the compression accumulation force of the return spring 4 starts to be released, the cam 30 rotates along with the rotating shaft 3, the damping piece is compressed by the buffer damper 2 in the rotating process of the cam 30, and the kinetic energy consumed by the accumulation energy of the buffer damper 2 and the potential energy released by the return spring 4 are mutually restricted, so that the door closing device can be gently and safely closed.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a close door gear of door speed adjustable, includes shell (1), buffer damper (2), rotation axis (3) and reset spring (4), offer on shell (1) be used for installing axle holding chamber (11) of rotation axis (3), buffer damper (2) and reset spring (4) set up in shell (1) and be located respectively both sides around rotation axis (3), be equipped with cam (30) on rotation axis (3), cam (30) are triangle-shaped, just cam (30) with buffer damper (2), reset spring (4) butt, its characterized in that: the damping device is characterized in that a first installation cavity (12) for installing the buffer damper (2) and a second installation cavity (13) for installing the return spring (4) are formed in two sides of the shaft accommodating cavity (11) on the shell (1), one end of the first installation cavity (12), which is far away from the rotating shaft (3), is in threaded connection with a damping adjusting piece (5), the damping adjusting piece (5) is in threaded connection with the buffer damper (2), one end of the second installation cavity (13), which is far away from the rotating shaft (3), is in threaded connection with a force adjusting mechanism (6), and the force adjusting mechanism (6) is in threaded connection with the return spring (4).
2. A door closing device with adjustable door closing speed according to claim 1, characterized in that: the cylinder body portion one end of buffering attenuator (2) is provided with positioning lug (21), the front end of cam (30) is provided with first constant head tank (301), positioning lug (21) with first constant head tank (301) cooperation butt when closing door device is in the state, the both sides limit of cam (30) all is equipped with second constant head tank (302), positioning lug (21) with second constant head tank (302) cooperation butt when closing door device is in the state of opening.
3. A door closing device with adjustable door closing speed according to claim 1, characterized in that: the force adjusting mechanism (6) comprises a spring top piece (61), a limiting piece (62) and a force adjusting piece (63), wherein the spring top piece (61) is in butt joint with a reset spring (4) and movably arranged in a second installation cavity (13), a positioning column (64) inserted into the inner side of the reset spring (4) is arranged at the end part of the spring top piece (61), the limiting piece (62) is arranged at the end part of the second installation cavity (13), the force adjusting piece (63) is screwed on the limiting piece (62), and the force adjusting piece (63) passes through the limiting piece (62) and is in butt joint with the spring top piece (61).
4. A door closing device with adjustable door closing speed according to claim 1, characterized in that: the shell (1) is provided with a mounting groove (14) corresponding to the shaft accommodating cavity (11), the mounting groove (14) is provided with a cover plate (7) in an adapting mode, one end of the rotating shaft (3) is rotatably arranged at the bottom of the shaft accommodating cavity (11), and the other end of the rotating shaft extends out of the cover plate (7).
5. The door closing device with adjustable door closing speed according to claim 4, wherein: the bottom of axle holding chamber (11) is equipped with first rotation groove (15), the bottom of apron (7) is equipped with second rotation groove (71), the both ends of rotation axis (3) are connected with first rotation groove (15), second rotation groove (71) through slide bearing (8) respectively.
6. A door closing device with adjustable door closing speed according to claim 1, characterized in that: the end of the spring is provided with a spring sleeve (9), the spring sleeve (9) is abutted with the cam (30), and the cam (30) is correspondingly abutted with the spring sleeve (9) and provided with a spring platform (303).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321646258.XU CN220059269U (en) | 2023-06-27 | 2023-06-27 | Door closing device with adjustable door closing speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321646258.XU CN220059269U (en) | 2023-06-27 | 2023-06-27 | Door closing device with adjustable door closing speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220059269U true CN220059269U (en) | 2023-11-21 |
Family
ID=88751320
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321646258.XU Active CN220059269U (en) | 2023-06-27 | 2023-06-27 | Door closing device with adjustable door closing speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220059269U (en) |
-
2023
- 2023-06-27 CN CN202321646258.XU patent/CN220059269U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |