CN215763116U - Door opener limiting structure and door opener - Google Patents
Door opener limiting structure and door opener Download PDFInfo
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- CN215763116U CN215763116U CN202121055162.7U CN202121055162U CN215763116U CN 215763116 U CN215763116 U CN 215763116U CN 202121055162 U CN202121055162 U CN 202121055162U CN 215763116 U CN215763116 U CN 215763116U
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- door opener
- nut
- positioning tube
- driving element
- elastic pieces
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Abstract
The utility model discloses a door opener with a door opener limiting structure trace, wherein the door opener limiting structure comprises two positioning pipes, two pushing pipes, a screw rod, a nut, elastic pieces and a detection module, the two elastic pieces are arranged and accommodated in the positioning pipes, one ends of the two elastic pieces are respectively fixed on two opposite end surfaces of the positioning pipes along the moving direction of the nut, the nut is positioned between the two elastic pieces and can be abutted against the elastic pieces, and the detection module is used for detecting the working current of a driving element and powering off the driving element reaching a preset working current value; the door opener comprises the door opener limiting structure. According to the utility model, a limit switch is not required to be arranged, the power-off operation is carried out on the driving element when the preset working current value is reached through the preset working current value, the limit of the extending and retracting actions of the push pipe is realized, the limit structure of the door opener is effectively simplified, the miniaturization and the lightness of the door opener are realized, and the production cost of the door opener is reduced.
Description
Technical Field
The utility model relates to the technical field of door openers, in particular to a door opener limiting structure and a door opener.
Background
The external switch door signal that gives is received to the door opener, through the corresponding executive component motion of signal circuit trigger motor drive, realize the automation of the door body and open, close, in the correlation technique, set up limit switch in the door opener, detect executive component's position and carry out spacingly, stop with opening of control executive component, need set up the support that is used for installing limit switch in the door opener, and connect wire transmission limit switch's detection information, the equipment is comparatively loaded down with trivial details, be unfavorable for the miniaturized development of door opener, and manufacturing cost is higher.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the utility model provides a door opener limiting structure which does not need a limiting switch, is small and light and has low production cost.
The utility model also provides a door opener with the door opener limiting structure.
According to the first aspect of the utility model, the door opener limit structure is characterized by comprising:
the pushing pipe penetrates through the positioning pipe;
a drive element located outside the positioning tube;
the screw rod is in threaded connection with the nut, the nut is connected to one end, arranged inside the positioning pipe, of the pushing pipe, one end of the screw rod extends into the pushing pipe, and the other end of the screw rod is connected with the driving element;
the elastic pieces are provided with two elastic pieces and accommodated in the positioning tube, one ends of the two elastic pieces are respectively fixed on two opposite end surfaces of the positioning tube along the moving direction of the nut, and the nut is positioned between the two elastic pieces and can be abutted against the elastic pieces;
and the detection module is used for detecting the working current of the driving element and powering off the driving element reaching a preset working current value.
The door opener limiting structure provided by the embodiment of the utility model at least has the following beneficial effects:
the door opener limiting structure provided by the embodiment of the utility model does not need to be provided with a limiting switch, the working current of the driving element can be influenced by the resistance of the elastic part to the movement of the nut, and the driving element is subjected to power-off operation when reaching the preset working current value through the preset working current value, so that the extending and retracting actions of the push pipe are limited, the door opener limiting structure is effectively simplified, the door opener is miniaturized and lightened, and the production cost of the door opener is reduced.
According to some embodiments of the utility model, the nut includes a mounting portion and a connecting portion, the mounting portion and the connecting portion are integrally connected, the connecting portion is protrudingly disposed on an outer edge of the mounting portion, the mounting portion is sleeved on the screw rod, and the connecting portion is slidably connected with the positioning tube.
According to some embodiments of the utility model, the inner wall of the positioning tube has a sliding groove extending in the moving direction of the nut, and a part of the connecting portion is slidably connected in the sliding groove and can move along the sliding groove.
According to some embodiments of the utility model, the positioning tube has a plurality of wall surfaces inside, at least two adjacent wall surfaces intersect to form a limiting angle, and a part of the connecting portion contacts the limiting angle and abuts against the wall surfaces.
According to some embodiments of the present invention, the positioning tube comprises a side plate and two end plates, the two end plates are respectively connected to two ends of the side plate, and the elastic member is fixed to a side of the end plate facing the side plate.
According to some embodiments of the present invention, one of the two elastic members is sleeved on the outside of the pushing tube, and the other elastic member is sleeved on the outside of the screw rod.
According to some embodiments of the utility model, further comprising a housing fixed to an end of the positioning tube, the driving element being received in the housing.
According to some embodiments of the present invention, the driving device further comprises a coupling, two ends of the coupling are respectively connected to the driving element and the screw, and the coupling is accommodated in the housing.
According to some embodiments of the utility model, the nut is made of a self-lubricating material.
The door opener according to the second aspect of the embodiment of the utility model comprises the door opener limiting structure.
The door opener provided by the embodiment of the utility model at least has the following beneficial effects:
the door opener provided by the embodiment of the utility model has the advantages that the door opener limiting structure is arranged, the convenience in assembling the door opener is improved, the limiting switch is not required, the production cost is saved, and the miniaturization and the portability development of the door opener are facilitated.
Additional aspects and advantages of the utility model will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the utility model.
Drawings
The utility model is further described with reference to the following figures and examples, in which:
fig. 1 is a schematic structural view of an embodiment of a door opener limiting structure of the present invention;
FIG. 2 is a schematic structural view of one embodiment of the nut of FIG. 1;
FIG. 3 is a schematic structural view of one embodiment of the positioning tube of FIG. 1;
fig. 4 is a partial schematic view of another embodiment of a door opener limiting structure of the present invention.
Reference numerals: positioning tube 100, side plate 110, end plate 120; pushing the tube 200; a screw 300; a nut 400; a mounting portion 410, a connecting portion 420; a drive element 500; an elastic member 600; a housing 700; a coupling 800.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality is one or more, the meaning of a plurality is two or more, and the above, below, exceeding, etc. are understood as excluding the present numbers, and the above, below, within, etc. are understood as including the present numbers. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
In the description of the present invention, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Referring to fig. 1, in one embodiment of the present invention, a door opener limiting structure is provided for limiting an actuating member in a door opener. The door opener limiting structure comprises a positioning tube 100 and a pushing tube 200, at least part of the pushing tube 200 penetrates through the positioning tube 100, one end of the pushing tube 200 is accommodated in the positioning tube 100, the other end of the pushing tube 200 can extend out of or return into the positioning tube 100, the pushing tube 200 is an execution part of the door opener limiting structure, the end part of the pushing tube 200 can be connected with a door body, and the door body is opened and closed through the movement of the pushing tube 200; door opener limit structure still includes screw rod 300 and nut 400, the motion of screw rod 300 is used for driving the push tube 200 and removes, it is specific, screw rod 300 outside is located to nut 400 cover, nut 400 and screw rod 300 spiro union, nut 400 is connected in the one end that push tube 200 is located positioning tube 100 inside, the inside to push tube 200 is stretched into to the one end of screw rod 300, the other end and the drive element 500 of screw rod 300 are connected, drive element 500 is located positioning tube 100's outside, and drive screw rod 300 rotates, nut 400 is driven by screw rod 300 and is removed in positioning tube 100, make push tube 200 follow nut 400 synchronous motion, realize the switching of the door body.
The door opener limiting structure further comprises two elastic pieces 600, the two elastic pieces 600 are contained in the positioning tube 100, one ends of the two elastic pieces 600 are fixed to two opposite end faces of the positioning tube 100 along the moving direction of the nut 400 respectively, the nut 400 is located between the two elastic pieces 600, and when the nut 400 reciprocates in the positioning tube 100, the nut 400 can be abutted to the two elastic pieces 600 respectively, so that the resistance to the movement of the nut 400 is increased, and the working current of the driving element 500 is increased. The door opener limiting structure further comprises a detection module (not shown), the detection module is used for detecting the working current of the driving element 500, different deformation values of the elastic piece 600 correspond to corresponding working current values of the driving element 500, one deformation value is taken within a reasonable deformation range of the elastic piece 600, the current of the driving element 500 corresponding to the deformation value is a preset working current value, when the data detected by the detection module reach the preset working current value, the power-off operation is executed on the driving element 500, the driving element 500 stops driving the screw 300 to rotate, and the limitation on the pushing pipe 200 is realized.
The door opener limiting structure provided by the embodiment of the utility model does not need to be provided with a limiting switch, and because the resistance of the elastic piece 600 to the movement of the nut 400 can influence the working current of the driving element 500, the driving element 500 is powered off when reaching the preset working current value through the preset working current value, and the extending and retracting actions of the push pipe 200 are limited, so that the door opener limiting structure is effectively simplified, the miniaturization and the lightness of the door opener are realized, the production cost of the door opener is reduced, the elastic force of the elastic piece 600 has a buffering effect on the movement of the push pipe 200, the collision and the vibration of internal parts of the door opener can be reduced, and the service life of the door opener is prolonged.
It should be noted that the detection module may be integrated in a control system of the door opener itself, for example, a current transformer, an ammeter, and other elements are arranged in a circuit of the control system to monitor the working current of the driving element 500 in real time; the control system can be integrated in a PCB circuit board, corresponding functional circuits are printed in the circuit board, and when the working current reaches a preset value, the power-off functional circuit of the driving element 500 is triggered to realize power-off control.
The elastic member 600 may be selected as a spring, a spring plate, etc., and the deformation amount of the elastic member 600 corresponding to the limit position of the pushing tube 200 extending out and retracting may be different, that is, the pushing tube 200 may correspond to different working currents at the limit position of the extending out and retracting, and the deformation amount and the working current value of the elastic member 600 may be reasonably selected according to the specific application scenario of the door opener.
One end of the screw 300 is inserted into the interior of the push tube 200, so that the connection between the screw 300 and the push tube 200 is more compact, the two elastic members 600 can be selected as springs, the two elastic members 600 can be respectively sleeved outside the screw 300 and the push tube 200, and the connection between the elastic members 600 and the push tube 200 and the screw 300 is more compact on the premise of ensuring the normal movement of the push tube 200 and the screw 300; the elastic member 600 has a fixed end and a free end, the fixed end can be fixed in the positioning tube 100 by bonding and welding, and the free end abuts against the nut 400 during the movement of the nut 400; a plurality of elastic components 600 can all be connected at the both ends of registration arm 100, and a plurality of elastic components 600 are cyclic annular distribution in registration arm 100's inside, and push tube 200 and screw rod 300 can pass and locate in the space that a plurality of elastic components 600 enclose, and a plurality of elastic components 600 make up and provide the elastic force to nut 400 to increase the resistance that nut 400 removed and receive, thereby increase drive element 500 operating current's variation amplitude, with the spacing sensitivity of improvement door opener limit structure.
The outer surface of the screw 300 is provided with an external thread and the inner surface of the nut 400 is provided with an internal thread to be engaged with the external thread, so that the nut 400 can move along the axis of the screw 300 following the rotation of the screw 300. Referring to fig. 2, the nut 400 has a mounting portion 410 and a connecting portion 420, the mounting portion 410 is integrally connected to the connecting portion 420, the mounting portion 410 is hollow and is screwed to the screw 300, the connecting portion 420 is protrudingly disposed on an outer surface of the mounting portion 410, and the connecting portion 420 is configured to be connected to the positioning tube 100, for example, the connecting portion 420 is a protrusion and is slidably connected to the positioning tube 100, or the connecting portion 420 contacts with an inner wall of the positioning tube 100 to perform rotation limitation. Mount 410 is fixedly attached to the end of pusher tube 200, mount 410 may be inserted into the interior of pusher tube 200 and form an interference fit with the inner wall of pusher tube 200, or mount 410 and the inner wall of pusher tube 200 may have threads that mate with each other, and screwing mount 410 may lock nut 400 to one end of pusher tube 200. It should be noted that, in order to reduce the friction between the nut 400 and the screw 300 during the relative movement, lubricating oil may be coated on the contact position between the nut 400 and the screw 300; in one embodiment, the nut 400 may be made of a self-lubricating material, such as polyimide, polyetheretherketone, polyoxymethylene, polyethylene, a ceramic material, etc., to reduce wear of the nut 400 and the screw 300, and even if the nut 400 performs a rotation limitation by contacting with an inner wall of the positioning tube 100, since the nut 400 has a self-lubricating property, mutual friction between the nut 400 and the positioning tube 100 may be reduced, and a service life of the door opener may be prolonged.
In addition, the driving element 500 can drive the screw 300 to rotate forward and backward, so that the screw 300 can drive the nut 400 to reciprocate in the positioning tube 100, thereby realizing the extending and retracting actions of the pushing tube 200, and the driving element 500 can be selected from power components such as a motor and a motor.
The rotational freedom of the push tube 200 or the nut 400 is limited, so that the push tube 200 or the nut 400 can only move linearly, specifically, a guide assembly may be arranged outside the positioning tube 100, the guide assembly may be a combination structure of a slide rail and a slider, and the guide assembly is connected with the push tube 200, guides the movement of the push tube 200 and limits the rotational freedom of the push tube 200; or, a rotation stopping structure for limiting the nut 400 is arranged in the positioning tube 100, so that the nut 400 can only move linearly, for example, a sliding groove extending along the moving direction of the nut 400 is arranged on the inner wall of the positioning tube 100, a protrusion matched with the sliding groove is arranged on the connecting part 420, the protrusion is accommodated in the sliding groove, the protrusion is limited by the side wall of the sliding groove, the nut 400 is driven by the screw 300 to move in the sliding groove, so that the nut 400 can only move linearly; or, the outer contour of the nut 400 is matched with the shape of the inner wall of the positioning tube 100, the outer surface of the nut 400 is in contact with the inner wall of the positioning tube 100, the positioning tube 100 is internally provided with a plurality of wall surfaces, at least two adjacent wall surfaces are intersected to form a limiting angle, the outer surface of part of the connecting part 420 is in contact with the limiting angle, and in the moving process of the nut 400, the outer surface is abutted against the two wall surfaces to limit the rotational freedom degree of the nut 400; at least one of the two surfaces can be set to be a plane, the included angle formed by the plane and the limited angle limits the rotation of the nut 400, so that the nut 400 can only move along a straight line, and specifically, the section of the positioning tube 100 can be triangular, rectangular, fan-shaped and the like.
When the door opener limiting structure is assembled, the nut 400 may be fixed to the end of the push tube 200, the screw 300 is then inserted into the push tube 200 and screwed with the nut 400, and then inserted into the positioning tube 100 together, and after the driving element 500 is connected with the screw 300, the door opener limiting structure is assembled. In order to improve the convenience of assembling the screw 300, the end of the screw 300 may be chamfered to facilitate the insertion of the screw 300 into the pushing tube 200; in addition, the positioning tube 100 is provided as a split structure, so that the pushing tube 200 and the screw 300 are inserted into the positioning tube 100, for example, in an embodiment, referring to fig. 3, the positioning tube 100 includes a side plate 110 and two end plates 120, the side plate 110 is tubular, the two end plates 120 are respectively connected to two sides of the side plate 110, and the two end plates 120 are fixed to the end portions of the side plate 110 after the pushing tube 200, the screw 300 and the nut 400 are inserted into the positioning tube 100, so as to avoid the assembled components; the end plate 120 may also be adhered or welded to the end of the side plate 110, or two end plates 120 may be detachably connected to two ends of the side plate 110, respectively, for example, the end plate 120 and the side plate 110 have a snap-fit connection to each other, so as to improve the convenience of assembling the side plate 110 and the end plate 120.
Referring to fig. 4, the door opener limiting structure further includes a housing 700, the housing 700 is fixed to one end of the positioning tube 100, the driving element 500 is accommodated in the housing 700, and the housing 700 protects the driving element 500; the shell 700 can be connected with a wall body through the switching structure, the shell 700 is fixed, the pushing pipe 200 can be connected with the door body, and when the pushing pipe 200 moves, the door body is driven to move relative to the wall body, so that opening and closing of the door body are realized. The door opener limiting structure further comprises a coupler 800, two ends of the coupler 800 are respectively connected with the screw 300 and the driving element 500, so that the power of the driving element 500 is transmitted to the screw 300, and the rotation of the screw 300 is realized; the coupling 800 is accommodated in the casing 700, and the effective connection between the screw 300 and the driving element 500 is ensured under the protection of the casing 700. The door opener limiting structure further comprises a gear box (not shown) respectively connecting the driving element 500 and the screw 300, the gear box being used for adjusting the rotation speed of the screw 300 to change the moving speed of the push pipe 200; the gearbox may also be housed within the housing 700.
The utility model also provides a door opener which comprises the door opener limiting structure, and an adapter part between the pushing pipe 200 and the door body, an adapter part between the shell 700 and the wall body, a PCB circuit structure and the like can be arranged in the door opener; through setting up door opener limit structure, improved the convenience degree of door opener equipment to need not to set up limit switch, saved manufacturing cost, be favorable to miniaturization, the lightweight development of door opener.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the gist of the present invention. Furthermore, the embodiments of the present invention and the features of the embodiments may be combined with each other without conflict.
Claims (10)
1. Door opener limit structure, its characterized in that includes:
the pushing pipe penetrates through the positioning pipe;
a drive element located outside the positioning tube;
the screw rod is in threaded connection with the nut, the nut is connected to one end, arranged inside the positioning pipe, of the pushing pipe, one end of the screw rod extends into the pushing pipe, and the other end of the screw rod is connected with the driving element;
the elastic pieces are provided with two elastic pieces and accommodated in the positioning tube, one ends of the two elastic pieces are respectively fixed on two opposite end surfaces of the positioning tube along the moving direction of the nut, and the nut is positioned between the two elastic pieces and can be abutted against the elastic pieces;
and the detection module is used for detecting the working current of the driving element and powering off the driving element reaching a preset working current value.
2. The door opener limit structure of claim 1, wherein the nut comprises an installation portion and a connection portion, the installation portion is integrally connected with the connection portion, the connection portion is protrudingly disposed at an outer edge of the installation portion, the installation portion is sleeved on the screw rod, and the connection portion is slidably connected with the positioning tube.
3. The door opener according to claim 2, wherein the inner wall of the positioning tube has a slide groove extending in the moving direction of the nut, and a part of the connecting portion is slidably coupled in the slide groove and is movable along the slide groove.
4. The door opener of claim 2, wherein the positioning tube has a plurality of walls, at least two adjacent walls intersect to form a limiting angle, and a portion of the connecting portion contacts the limiting angle and abuts against the walls.
5. The door opener according to claim 1, wherein the positioning tube comprises a side plate and two end plates, the two end plates are respectively connected to two ends of the side plate, and the elastic member is fixed to a side of the end plate facing the side plate.
6. The door opener according to claim 1, wherein one of the two elastic members is sleeved on an outer portion of the pushing tube, and the other elastic member is sleeved on an outer portion of the screw rod.
7. The door opener limit structure of claim 1, further comprising a housing fixed to an end of the positioning tube, the driving element being received in the housing.
8. The door opener limit structure of claim 7, further comprising a coupler, wherein two ends of the coupler are respectively connected to the driving element and the screw, and the coupler is accommodated in the housing.
9. The door opener stop structure of claim 1, wherein the nut is made of a self-lubricating material.
10. Door opener characterized in that it comprises a door opener stop arrangement according to any of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121055162.7U CN215763116U (en) | 2021-05-17 | 2021-05-17 | Door opener limiting structure and door opener |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121055162.7U CN215763116U (en) | 2021-05-17 | 2021-05-17 | Door opener limiting structure and door opener |
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| Publication Number | Publication Date |
|---|---|
| CN215763116U true CN215763116U (en) | 2022-02-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121055162.7U Active CN215763116U (en) | 2021-05-17 | 2021-05-17 | Door opener limiting structure and door opener |
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| Country | Link |
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| CN (1) | CN215763116U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458664A (en) * | 2022-04-11 | 2022-05-10 | 西安华欧精密机械有限责任公司 | Locking electric cylinder and locking and unlocking method thereof |
-
2021
- 2021-05-17 CN CN202121055162.7U patent/CN215763116U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114458664A (en) * | 2022-04-11 | 2022-05-10 | 西安华欧精密机械有限责任公司 | Locking electric cylinder and locking and unlocking method thereof |
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