CN218815889U - Rotating shaft shutter and automatic door closer thereof - Google Patents
Rotating shaft shutter and automatic door closer thereof Download PDFInfo
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- CN218815889U CN218815889U CN202220735176.1U CN202220735176U CN218815889U CN 218815889 U CN218815889 U CN 218815889U CN 202220735176 U CN202220735176 U CN 202220735176U CN 218815889 U CN218815889 U CN 218815889U
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- push block
- cam mechanism
- door closer
- door
- damper
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- 238000013016 damping Methods 0.000 claims abstract description 11
- 230000003139 buffering effect Effects 0.000 abstract description 9
- 239000011521 glass Substances 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 230000009172 bursting Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
The embodiment of the utility model discloses an automatic door closer of a rotating shaft door, which comprises a door closer main body and a damper; the door closer main body comprises a shell, a first buffer spring, a first push block, a cam mechanism and a second push block; one end of the first buffer spring is connected with the inner wall of the shell, and the other end of the first buffer spring is connected with the first push block; the first push block is abutted with the cam structure and can drive the cam mechanism to rotate; the cam mechanism is also connected with the second pushing block and can drive the second pushing block to move; the damper is arranged on the other side of the second push block; the front surface of the cam mechanism is provided with an avoiding groove, the bottom of the avoiding groove is a first inclined surface and a second inclined surface which form an included angle with each other, and the included angle between the first inclined surface and the second inclined surface is an obtuse angle; when the door is opened, the second pushing block extends into the avoiding groove. The utility model also discloses a rotary shaft shutter, which comprises the automatic door closer; the utility model discloses buffering angle is big when closing the door, and the security is high, and easily adjusts the damping.
Description
Technical Field
The utility model relates to a door closer makes technical field, especially relates to a pivot covers door and automatic door closer thereof.
Background
The existing rotary shaft door is a rotary shaft door without a buffer, a user needs to manually close the door, if the user exerts too much force, the door is very noisy, the user is easy to hurt the hand, and satisfactory user experience is brought to the user.
The existing shaft core type door closer device has the defects that a shaft core double cam drives a first piston and a second piston, and the rear ends of the first piston and the second piston are provided with springs and dampers to work in a matched mode, so that the whole device achieves the effect of buffering and closing the door, but the door closer has the advantages that the buffering angle of a cam mechanism is small, the damping force cannot be adjusted conveniently, and the opening of a glass door is connected. The buffering angle is small, the use is inconvenient, the potential safety hazard is easily caused, the damping force cannot be conveniently adjusted, inconvenience is brought to installation, and the cost is increased and the glass door bursting risk is increased due to the opening of the glass door.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome prior art not enough, the utility model provides a pivot covers automatic door closer of door, and its buffering angle is big, and easily adjusts the damping grade.
The utility model also provides a door is shielded in the pivot, and its security is high, and is convenient for adjust the damping level when closing the door.
In order to solve the problems, the utility model provides an automatic door closer for a rotary shaft covering door, which comprises a door closer main body and a damper; the door closer main body comprises a shell, a first buffer spring, a first push block, a cam mechanism and a second push block; one end of the first buffer spring is connected with the inner wall of the shell, and the other end of the first buffer spring is connected with the first push block; the first push block is abutted with the cam mechanism and can drive the cam mechanism to rotate; the cam mechanism is also connected with the second pushing block and can drive the second pushing block to move; the damper is arranged on the other side of the second push block;
an avoiding groove is formed in the front face of the cam mechanism, the bottom of the avoiding groove is a first inclined plane and a second inclined plane which form an included angle with each other, and the included angle between the first inclined plane and the second inclined plane is an obtuse angle; when the door is opened, the second pushing block extends into the avoiding groove.
As an improvement of the technical scheme, the included angle between the first inclined surface and the second inclined surface is 110-150 degrees.
As an improvement of the above technical solution, when the door is opened, the side surface of the second push block is parallel to the first inclined surface or the second inclined surface.
As an improvement of the above technical scheme, a connecting rod is arranged between the cam mechanism and the second push block; one end of the connecting rod is hinged to the middle of the avoidance groove, and the other end of the connecting rod is hinged to the second pushing block.
As an improvement of the technical scheme, a spherical groove is formed in the second push block, and the hinged point of the connecting rod and the second push block is arranged in the middle of the spherical groove.
As an improvement of the technical scheme, a first rebound surface is arranged on the back surface of the cam mechanism, and a second rebound surface is arranged on the side surface of the cam mechanism;
the first rebound surface is arranged on one side of the second rebound surface at a preset angle of 45-90 degrees; the avoidance groove is arranged on the other side of the second resilience surface at a preset angle of 110-130 degrees;
when the door is closed, the first push block is abutted against the first resilient surface; when the door is opened, the first push block is abutted against the second rebound surface.
As an improvement of the technical scheme, the top of the cam mechanism is provided with a mounting column, and a bearing is arranged between the cam mechanism and the shell;
the bottom of the cam mechanism is provided with a door plate connecting part, and a bearing is arranged between the cam mechanism and the shell.
As an improvement of the above technical solution, the damper includes a damper body, and a third push block and a second buffer spring which are arranged in the damper body;
one end of the second buffer spring is connected with the inner wall of the damper body, and the other end of the second buffer spring is connected with the third push block;
one end of the third push block penetrates through the damper body and extends outwards into the shell, and when the door is closed, the second push block is abutted to the third push block.
As an improvement of the technical scheme, one end of the damper, which is far away from the second push block, is provided with a damping grade adjusting hole.
Correspondingly, the utility model also provides a pivot covers a door, including the aforesaid automatic door closer.
Implement the utility model discloses following beneficial effect has:
(1) The utility model provides a door closer of a rotating shaft screen door, wherein an avoiding groove is arranged on the front side of a cam mechanism, the bottom of the avoiding groove is a first inclined plane and a second inclined plane which form an included angle with each other, and the included angle is an obtuse angle; when the door is closed, the second pushing block extends into the avoidance groove; the included angle of the bottom of the avoiding groove is increased, so that the rotating angle required by the cam mechanism when the second pushing block and the damper start to act in the door closing process is reduced, the buffering angle when the second pushing block and the damper act is increased, the damper starts to act when the door plate and the door frame are at a large angle, and the safety of the rotating shaft for door closing is improved;
(2) The end part of the damper is provided with a damping grade adjusting hole, and the damper can be adjusted by directly using an adjusting tool.
Drawings
Fig. 1 is a schematic perspective view of an automatic door closer according to the present invention;
fig. 2 is an exploded view of the automatic door closer of the present invention;
fig. 3 is a schematic perspective view of the cam mechanism of the present invention;
fig. 4 is a schematic sectional view of the automatic door closer according to the present invention in a closed state;
fig. 5 is a schematic sectional view illustrating the door opened state of the automatic door closer according to the present invention;
fig. 6 is a schematic perspective view of the rotary shaft shutter according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in further detail with reference to the accompanying drawings.
The cam mechanism of the automatic door closer of the existing rotating shaft door-closing device has a small buffering angle, and after the door is closed, the damper only acts when the door plate rotates to a smaller included angle with a door frame, so that potential safety hazards are easily caused.
Therefore, referring to fig. 1-3, the present invention provides an automatic door closer for a revolving shaft covering door, which comprises a door closer main body 1 and a damper 2; the door closer main body 1 comprises a shell 11, a first buffer spring 12, a first push block 13, a cam mechanism 14 and a second push block 15; one end of the first buffer spring 12 is connected with the inner wall of the shell 11, and the other end thereof is connected with the first push block 13; the first pushing block 13 is structurally abutted against the cam 14 to drive the cam mechanism 14 to rotate, the cam mechanism 14 is further connected with the second pushing block 15 and can drive the second pushing block 15 to move, and the damper 2 is arranged on the other side of the second pushing block 15.
The utility model discloses a improve cam mechanism, make cam mechanism close the door in-process, possess great buffering angle.
Specifically, the front surface of the cam mechanism 14 is provided with an avoiding groove, the bottom of the avoiding groove is a first inclined surface 141 and a second inclined surface 142 which form an included angle with each other, and the included angle between the first inclined surface 141 and the second inclined surface 142 is 110-150 degrees; when the door is opened, the second pushing block 15 extends into the avoiding groove.
An avoidance groove is formed in the front face of the cam mechanism 14, and the bottom of the avoidance groove is a first inclined surface 141 and a second inclined surface 142 which form an included angle with each other, and the included angle is an obtuse angle; when the door is closed, the second pushing block 15 extends into the avoidance groove; the included angle of the bottom of the groove is avoided through increasing, the rotating angle required by the cam mechanism is reduced when the second push block 15 and the damper 2 start to act in the door closing process, and then the buffering angle of the second push block and the damper is increased, so that the damper starts to act when the door plate and the door frame are at a large angle, and the safety of the door is increased due to the fact that the rotating shaft covers the door. Preferably, the included angle between the first inclined plane 141 and the second inclined plane 142 is 110-150 °; exemplary are, but not limited to, 110 °,115 °, 127 °, 140 °, 150 °.
Further, when the door is opened, the side surface of the second push block 15 is parallel to the first inclined surface 141 or the second inclined surface 142.
Further, a connecting rod 16 is arranged between the cam mechanism 14 and the second pushing block 15; one end of the connecting rod 16 is hinged to the middle of the avoidance groove, and the other end of the connecting rod 16 is hinged to the second pushing block 15. When the door is opened, the cam mechanism 14 drives the second push block 15 to move towards the cam mechanism 14 through the connecting rod 16; when in the fully open state, the connecting rod 16 is parallel to the first inclined surface 141 or the second inclined surface 142.
Wherein, the second push block 15 is provided with a spherical groove 151, and the hinge point of the connecting rod 16 and the second push block 15 is arranged in the middle of the spherical groove 151; the hinge point of the connecting rod 16 and the second pushing block 15 is arranged on the spherical groove 151 of the second pushing block 15, so that the rotation fluency of the connecting rod 16 and the second pushing block 15 is improved, and the connecting rod 16 cannot be jammed when the cam drives the second pushing block 15 to move.
4-5, the back of the cam mechanism 14 is provided with a first rebound surface 143, and the side of the cam mechanism is provided with a second rebound surface 144;
specifically, the first resilient surface 143 is disposed at a predetermined angle on one side of the second resilient surface 144, and the predetermined angle is 45 to 90 °, for example, but not limited to, 50 °, 60 °, 85 °, and 90 °; the avoidance groove is formed on the other side of the second rebound surface 144 at a preset angle of 110-130 °, illustratively 115 °, 120 °, 130 °, but not limited thereto; when the door is closed, the first push block 13 abuts against the first resilient surface 143; when the door is opened, the first push block 13 abuts against the second rebound surface 144.
Referring to fig. 3, the top of the cam mechanism 14 is provided with a mounting post 145, and a bearing 17 is arranged between the cam mechanism and the housing 21; the bottom of the cam mechanism 14 is provided with a door panel connecting portion 146, and a bearing 17 is provided between the door panel connecting portion and the housing 21. The utility model discloses set up bearing 17 on erection column 145 and door portion connecting portion 146, make cam mechanism 14 can rotate along with the door plant in shell 21.
Referring to fig. 4-5, the damper 2 includes a damper body 21, and a third push block 22 and a second buffer spring 23 provided in the damper body 21; one end of the second buffer spring 23 is connected with the inner wall of the damper body 21, and the other end of the second buffer spring 23 is connected with the third push block 22; one end of the third push block 23 extends outwards through the damper body 21, and the second push block 15 abuts against the third push block 22 when the door is closed.
Preferably, one end of the damper 2, which is far away from the second push block 15, is provided with a damping grade adjusting hole 21; in the embodiment of the utility model, the damping grade adjusting hole 21 is provided with the adjusting nut and the adjusting screw rod which can drive the adjusting nut to rotate; when the damping level of the damper 2 needs to be adjusted, the adjusting screw rod is driven to rotate only through the hexagonal wrench, an opening at the position of the linked glass door is not needed, and therefore the purposes of reducing the production cost and reducing the risk of bursting of the glass door are achieved.
Referring to fig. 6, the present invention further provides a rotary shaft shutter, including the above automatic door closer; the automatic door closer is arranged in the upper frame 3 and the lower frame 4 of the rotary shaft covering door and is connected with the glass door of the rotary shaft covering door, and the opening and closing process of the glass door 5 can drive the cam mechanism to rotate.
The working principle of the embodiment is as follows:
the utility model provides an automatic door closer for a revolving shaft covering door, a first push block 13 of the automatic door closer can drive a cam mechanism 14 to rotate, and the first push block 13 can control the cam mechanism 14 to be in a door opening state or a door closing state; when the door is closed, the first push block 13 abuts against the first resilient surface 142; in the door opening process, the cam mechanism 14 starts to rotate, and then the second pushing block 15 is driven to move towards the cam mechanism 14 until the first pushing block 13 abuts against the cam mechanism 14, and the second pushing block 15 extends into the avoiding groove to be parallel to the first inclined surface 141 or the second inclined surface 142, so that the door is in a completely opened state; in the process of closing the door, the cam mechanism 14 starts to rotate to drive the second push block 15 to move towards the damper 2, and because the included angle between the first inclined surface 141 and the second inclined surface 144 is increased, the rotation angle required by the cam mechanism 14 is reduced in the process of closing the door when the second push block 15 and the damper 2 start to contact and act, and the buffer angle of the second push block 15 and the damper 2 is increased; namely, when the door plate and the door frame are at a larger angle, the damper 2 starts to act, and the safety of the rotating shaft door is improved.
Claims (10)
1. An automatic door closer with a rotating shaft for covering a door is characterized by comprising a door closer main body and a damper; the door closer main body comprises a shell, a first buffer spring, a first push block, a cam mechanism and a second push block; one end of the first buffer spring is connected with the inner wall of the shell, and the other end of the first buffer spring is connected with the first push block; the first push block is abutted with the cam mechanism and can drive the cam mechanism to rotate; the cam mechanism is also connected with the second pushing block and can drive the second pushing block to move; the damper is arranged on the other side of the second push block;
an avoiding groove is formed in the front face of the cam mechanism, the bottom of the avoiding groove is a first inclined plane and a second inclined plane which form an included angle with each other, and the included angle between the first inclined plane and the second inclined plane is an obtuse angle; when the door is opened, the second pushing block extends into the avoiding groove.
2. The automatic door closer of claim 1, wherein the first and second ramps are angled at 110-150 °.
3. The automatic door closer of claim 1, wherein a side of the second push block is parallel to the first or second ramp when in the door open state.
4. The automatic door closer of claim 3, wherein a connecting rod is provided between the cam mechanism and the second push block; one end of the connecting rod is hinged to the middle of the avoidance groove, and the other end of the connecting rod is hinged to the second pushing block.
5. The automatic door closer according to claim 4, wherein the second push block is provided with a spherical recess, and a hinge point of the connecting rod and the second push block is arranged in the middle of the spherical recess.
6. The automatic door closer of claim 1, wherein a back surface of the cam mechanism is provided with a first resilient surface and a side surface of the cam mechanism is provided with a second resilient surface;
the first rebound surface is arranged on one side of the second rebound surface at a preset angle of 45-90 degrees; the avoidance groove is arranged on the other side of the second resilience surface at a preset angle of 110-130 degrees;
when the door is closed, the first push block is abutted against the first resilient surface; when the door is opened, the first push block is abutted against the second rebound surface.
7. The automatic door closer of claim 1, wherein a mounting post is provided on a top of the cam mechanism and a bearing is provided between the cam mechanism and the housing;
the bottom of the cam mechanism is provided with a door plate connecting part, and a bearing is arranged between the cam mechanism and the shell.
8. The automatic door closer of claim 1, wherein the damper includes a damper body, and a third push block and a second buffer spring disposed within the damper body;
one end of the second buffer spring is connected with the inner wall of the damper body, and the other end of the second buffer spring is connected with the third push block;
one end of the third push block penetrates through the damper body and extends outwards into the shell, and when the door is closed, the second push block is abutted against the third push block.
9. The automatic door closer of claim 8, wherein an end of the damper remote from the second push block is provided with a damping level adjustment hole.
10. A swing-gate comprising an automatic door closer according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735176.1U CN218815889U (en) | 2022-03-29 | 2022-03-29 | Rotating shaft shutter and automatic door closer thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735176.1U CN218815889U (en) | 2022-03-29 | 2022-03-29 | Rotating shaft shutter and automatic door closer thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218815889U true CN218815889U (en) | 2023-04-07 |
Family
ID=87040075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220735176.1U Active CN218815889U (en) | 2022-03-29 | 2022-03-29 | Rotating shaft shutter and automatic door closer thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218815889U (en) |
-
2022
- 2022-03-29 CN CN202220735176.1U patent/CN218815889U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant |