CN107420976B - Safety device for lifting panel, lifting panel and air conditioner - Google Patents
Safety device for lifting panel, lifting panel and air conditioner Download PDFInfo
- Publication number
- CN107420976B CN107420976B CN201710326529.6A CN201710326529A CN107420976B CN 107420976 B CN107420976 B CN 107420976B CN 201710326529 A CN201710326529 A CN 201710326529A CN 107420976 B CN107420976 B CN 107420976B
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- Prior art keywords
- lifting
- panel
- safety device
- stopper
- rotatable body
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/082—Grilles, registers or guards
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cage And Drive Apparatuses For Elevators (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The application provides a safety device for a lifting panel, the lifting panel and an air conditioner. The safety device for lifting panel according to the present application comprises: a rotatable main body, on which a lifting rope for connecting the lifting panel is arranged; the limiting piece is rotatably arranged on the rotatable main body, and the rotation axis of the limiting piece is deviated from the rotation axis of the rotatable main body; the brake block is provided with a separation position separated from the rotatable main body and a braking position contacted with the rotatable main body, and the limiting piece can rotate relative to the rotatable main body and push the brake block to move to the braking position. The safety device for the lifting panel can prevent the grille from falling, and ensure safety.
Description
Technical Field
The application relates to the field of protective equipment, in particular to a safety device for a lifting panel, the lifting panel and an air conditioner.
Background
As shown in fig. 1, the grille of the existing courtyard machine panel in the market can be lifted, and the lifting grille can be convenient for a user to clean the grille filter screen. Typically the grille 19 is connected to the frame by a hoist rope 23. The grille 19 is provided with hooks 24b to which the hoist ropes 23 are connected. At least one of the lifting ropes 23 is connected with a motor 21 and a roller 22 for winding and unwinding the lifting rope 23 so as to drive the grille 19 to lift. A problem with this prior art construction is that accidental breakage of any point on the lifting rope 23 can cause the entire grid 23 to fall directly from above.
Disclosure of Invention
The application aims to provide a lifting panel safety device capable of preventing a lifting panel from falling, a lifting panel and an air conditioner.
The application provides a safety device for a lifting panel, which comprises: a rotatable main body, on which a lifting rope for connecting the lifting panel is arranged; the limiting piece is rotatably arranged on the rotatable main body, and the rotation axis of the limiting piece is deviated from the rotation axis of the rotatable main body; the brake block is provided with a separation position separated from the rotatable main body and a braking position contacted with the rotatable main body, and the limiting piece can rotate relative to the rotatable main body and push the brake block to move to the braking position.
Optionally, the safety device for the lifting panel further comprises a control switch for closing the driving mechanism and a trigger structure for switching the state of the control switch, wherein the trigger structure is arranged on the brake block and moves along with the brake block; when the brake block is positioned at the braking position contacted with the rotatable main body, the triggering structure enables the control switch to switch the state so as to close the driving mechanism.
Optionally, the limiting piece has a contact position contacting with the brake block and pushing the brake block to move, and the safety device for the lifting panel further comprises a reset structure, wherein the reset structure is arranged between the limiting piece and the rotatable main body and drives the limiting piece to be separated from the contact position.
Optionally, the reset structure includes a reset spring, a first mounting hole is formed in the rotatable main body, a second mounting hole is formed in the limiting piece, one end of the reset spring is connected to the first mounting hole, and the other end of the reset spring is connected to the second mounting hole.
Optionally, a mounting shaft is provided on an end face of the rotatable body, and the limiting member is rotatably provided on the rotatable body through the mounting shaft, the center of the mounting shaft being offset from the center of the limiting member in the length direction.
Optionally, a winding groove is formed in the peripheral surface of the rotatable main body, and the lifting rope is wound in the winding groove.
Optionally, the brake pad is in contact with the peripheral surface of the rotatable body when the brake pad is in the braking position.
Optionally, the brake block is embedded with a magnet or a magnetizer, and the circumferential surface of the rotatable main body is provided with the magnetizer or the magnet.
According to another aspect of the present application, there is provided a lifting panel including a panel mounting frame, a grille and a lifting mechanism, the grille being movably connected to the panel mounting frame with respect to the panel mounting frame by the lifting mechanism, the lifting mechanism including a safety device, the safety device being the safety device for lifting the panel described above.
Optionally, the lifting mechanism further comprises: the driving assembly is arranged on the panel mounting frame; the lifting rope is connected to the driving assembly, and the driving assembly can retract and release the lifting rope, and the lifting rope bypasses the rotatable main body and the grille of the safety device.
Optionally, the lifting mechanisms are at least two and are respectively connected with the grids.
According to another aspect of the present application, there is provided an air conditioner including the above-mentioned lifting panel.
According to the safety device for the lifting panel, the lifting panel and the air conditioner, the limiting piece can rotate relative to the rotatable main body, so that the brake block is pushed to move to the braking position, the brake block is contacted with the rotatable main body, and the rotatable main body is prevented from rotating. The rotatable main body can be limited to move when the lifting rope breaks through the cooperation of the limiting piece and the brake block, so that the grid is prevented from falling.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings:
FIG. 1 is a schematic view of a prior art lift panel;
FIG. 2 is a schematic perspective view of a rotatable body of a security device for a lift panel according to the present application;
FIG. 3 is a schematic view of the structure of the safety device for the lifting panel according to the present application;
FIG. 4 is a schematic view of the construction of the brake shoe of the safety device for lifting panels according to the application in the braking position;
FIG. 5 is a schematic perspective view of a lift panel according to the present application;
fig. 6 is a schematic view of the structure of one lifting rope in the lifting panel according to the present application when broken.
Reference numerals illustrate:
10. a rotatable body; 11. a wire winding groove; 12. a mounting shaft; 13. a first mounting hole; 14. a magnetizer; 20. a limiting piece; 30. a brake block; 32. a trigger structure; 33. a control switch; 40. a reset structure; 51. a panel mounting frame; 52. a grille; 61. a drive assembly; 70. passing through the coil; 90. a lifting rope.
Detailed Description
The application will be described in detail below with reference to the drawings in connection with embodiments.
As shown in fig. 2 to 4, the safety device for a lift panel according to the embodiment of the present application includes a rotatable body 10, a stopper 20, and a stopper 30. The rotatable body 10 is provided with a lifting rope 90 for connecting the lifting panel. The stopper 20 is rotatably provided on the rotatable body 10, and the rotation axis of the stopper 20 is offset from the rotation axis of the rotatable body 10. The stopper 30 has a separated position separated from the rotatable body 10 and a braking position contacting the rotatable body 10, and the stopper 20 is rotatable relative to the rotatable body 10 and pushes the stopper 30 to move to the braking position.
The lifting rope 90 is used for connecting the lifting panel, and when the panel is lifted normally, the rotatable body 10 rotates, and the lifting panel is lifted or lowered by the movement of the lifting rope 90. The stopper 20 is provided on the rotatable body 10 and rotates with the rotatable body 10 about the rotation axis of the rotatable body 10, with the brake pad 30 in the disengaged position. When a certain position of the lifting rope 90 is broken, the lifting panel accelerates, the rotatable body 10 accelerates and rotates, and the limiting piece 20 rotates relative to the rotatable body 10 due to inertia, so that the brake block 30 is pushed to move to a braking position, the rotatable body 10 stops rotating, the lifting rope 90 stops moving, and the lifting panel is prevented from continuously falling. The safety device for the lifting panel can effectively prevent the lifting panel from falling caused by breakage of the lifting rope, and ensures the safety of the lifting panel.
In this embodiment, the safety device is applied to a panel of an air conditioner of a courtyard machine. Of course, the lifting device can also be applied to other environments for lifting objects to protect the objects and prevent the objects from falling.
As shown in fig. 2, the rotatable body 10 has a circular cross-sectional shape. The rotatable body 10 is a cylinder with a rotation axis at its center. The rotatable body 10 of this structure facilitates processing and is stable and reliable in rotation. The hanging rope 90 is wound around the circumferential surface of the rotatable body 10. Of course, in other embodiments, the rotatable body 10 may be other shapes, such as a cone, prism, etc.
Optionally, a wire winding groove 11 is provided on the circumferential surface of the rotatable body 10, and the lifting rope 90 is wound in the wire winding groove 11, so that the lifting rope 90 is conveniently limited and prevented from being separated from the rotatable body 10.
Alternatively, a mounting shaft 12 is provided on an end surface of the rotatable body 10, and a stopper 20 is rotatably provided on the rotatable body 10 by the mounting shaft 12. The mounting shaft 12 is located on an end face of the rotatable body 10 perpendicular to the rotational axis thereof, and the mounting shaft 12 is parallel to the rotational axis of the rotatable body 10.
In order to better secure the stopper 20 from falling off the mounting shaft 12, an opening extending in the axial direction is provided in the mounting shaft 12. The diameter of the mounting shaft 12 may be slightly larger than the hole of the stopper 20 to be matched with the hole, and when the stopper 20 is mounted on the mounting shaft 12, both sides of the opening are pressed to enable the stopper 20 to be smoothly mounted. After installation, the opening resumes its natural state, preventing the stop 20 from falling off the mounting shaft 12.
As shown in fig. 3 and 4, the cross section of the stopper 20 (a cross section perpendicular to the thickness direction, that is, a cross section perpendicular to the rotational axis thereof) is shaped like a "shape. The head area is larger, the tail end area is smaller, and the peripheral wall profile of the limiting piece 20 is formed by sequentially connecting arc segments. The center of the mounting shaft 12 is offset from the center of the stopper 20 in the longitudinal direction. The length direction of the limiting member 20 refers to the connection line between the vertex of the head and the vertex of the tail end, i.e. the maximum length of the limiting member 20. The hole that is used for holding mounting shaft 12 on locating part 20 sets up at its head, and the head area of locating part 20 is great on the one hand, and the structural strength is guaranteed more easily to the processing hole, and on the other hand mounting shaft 12 eccentric arrangement is more convenient for locating part 20 rotate the time cooperate with brake block 30.
In this embodiment, the stopper 20 has a contact position that contacts the brake pad 30 and pushes the brake pad 30 to move. Of course, in other embodiments, the stop 20 may be in driving engagement with the brake pad 30 by other structures, and not necessarily in contact with the brake pad 30. The safety device for a lifting panel further comprises a reset structure 40, wherein the reset structure 40 is arranged between the limiting piece 20 and the rotatable main body 10, and drives the limiting piece 20 to be separated from the contact position. As shown in fig. 2 to 4, a first mounting hole 13 is provided on the rotatable body 10. A second mounting hole is provided on the head of the stopper 20. The return structure 40 includes a return spring having one end connected to the first mounting hole 13 and the other end connected to the second mounting hole. In a normal state, the return spring keeps the stopper 20 in one position as shown in fig. 3. When the rotatable body 10 rotates with acceleration, the stopper 20 rotates with respect to the rotatable body 10 due to inertia, thereby compressing the return spring, and rotates to a contact position where it contacts the brake pad 30 and drives the brake pad 30 to move, thereby braking the rotatable body 10. When there is no relative movement between the rotatable body 10 and the stopper 20, the return spring urges the stopper 20 to disengage from the contact position.
As shown in fig. 3 and 4, when the brake pad 30 is in the braking position, the brake pad 30 is in contact with the peripheral surface of the rotatable body 10. When mounted, the stopper 30 protrudes from a portion of the end surface of the rotatable body 10 where the stopper 20 is mounted so as to be engaged with the stopper 20.
Optionally, a groove similar to the shape of the tail end of the limiting member 20 is provided on the brake block 30 to better cooperate with the limiting member 20 to ensure safety.
Alternatively, the end surface of the brake block 30 that contacts the rotatable body 10 may be an arc surface to better fit with the rotatable body 10.
The safety device for a lifting panel further comprises a control switch 33 for closing the driving mechanism and a triggering structure 32 for switching the state of the control switch 33, wherein the triggering structure 32 is arranged on the brake block 30 and moves along with the brake block 30, and when the brake block 30 is positioned at a braking position where the rotatable body 10 contacts, the triggering structure enables the control switch 33 to switch the state so as to close the driving mechanism. The trigger structure 32 may be a stop, the control switch 33 may be a micro switch or the like.
Optionally, the brake block 30 is embedded with a magnet, and the circumferential surface of the rotatable body 10 is provided with a magnetizer 14 for preventing the rotatable body 10 from rotating. The magnetic conductor 14 may be an iron ring. Alternatively, the brake pad 30 is embedded with a magnetizer, and the circumferential surface of the rotatable body 10 is provided with a magnet.
According to another aspect of the present application, there is provided a lifting panel including a panel mounting frame 51, a grill 52, and a lifting mechanism, the grill 52 being connected to the panel mounting frame 51 by the lifting mechanism so as to be movable relative to the panel mounting frame 51, the lifting mechanism including a safety device, the safety device being the safety device for lifting the panel described above. The lifting panel adopting the safety device can effectively prevent the grid 52 caused by the breakage of one lifting rope from falling.
In this embodiment, there are at least two lifting mechanisms, and each lifting mechanism is connected to the grille 52. The two lifting mechanisms can effectively ensure safety. Of course, in other embodiments, more than two lifting mechanisms may be provided.
The number of safety devices may be determined as desired. The rotatable body 10 of the safety device is rotatably provided on the panel mounting frame 51. The brake pad 30 is reciprocatingly provided on the panel mounting frame 51. A spring may be attached to the stop 30 to pull the stop 30 back to the disengaged position by the spring after the stop 20 is out of contact. The control switch 33 is mounted on the panel mounting frame 51.
As shown in fig. 5 and 6, the lifting mechanism includes a drive assembly 61 and a lifting rope 90.
A driving assembly 61 is provided on the panel mounting frame 51 for retracting or paying out the hoist ropes 90 to achieve lifting of the grill 52. As shown in fig. 5, the drive assembly 61 includes a motor and a spool coupled thereto. The motor is connected with a control switch 33, and the motor can be controlled to stop rotating through the control switch 33.
The lifting rope 90 is connected to the drive assembly 61 and the drive assembly 61 can retract and retract the lifting rope 90, the lifting rope 90 bypassing the rotatable body 10 and the grille 52 of the safety device.
Specifically, as shown in fig. 5, one end of one of the hoist ropes 90 is connected to a reel (upper reel in fig. 5) of the driving assembly 61. And passes through the via-coil 70 on the panel mounting frame 51, and then sequentially passes through the two via-coils 70 on the left side of the grill 52 in fig. 5 to achieve connection with the grill 52. The lifting cord 90 is then passed through another of the loops 70 on the panel mount frame 51 and attached to the rotatable body 10 of the security device.
One end of the other lifting rope 90 is connected to the reel of the drive assembly 61 (the reel on the lower right in fig. 5) and then bypasses the through-coil 70 on the panel-mounted frame 51, and the two through-coils 70 on the right on the grille 52 to make connection with the grille 52, and then passes through the through-coil 70 on the panel-mounted frame 51 to connect with the rotatable body 10 of the safety device.
The number of the suspension ropes 90 may be one or two or more, and a plurality of suspension ropes 90 may be connected to the same safety device or to the corresponding safety devices, respectively. In this embodiment, the two suspension ropes 90 are coupled together by the safety device, so that the automatic balancing adjustment capability can be achieved.
The panel mounting frame 51 and the grille 52 are connected together through the lifting rope 90, if the lifting rope 90 breaks accidentally during lifting, the grille 52 can be hung on the other side through the safety device, and falling is prevented.
Lifting of the lifting rope 90 is controlled by a winding wheel provided with a motor, and the lifting rope 90 is wound on the rotatable main body 10 of the safety device for 1-2 circles. In this embodiment, the safety devices are distributed diagonally to the panel mounting frame 51 and move counterclockwise. Under normal operation, the lifting rope 90 moves at a uniform speed, and when a section of rope breaks, the grille 52 descends in an accelerating manner due to gravity. The rotatable body 10 of the safety device is driven to accelerate, at this time, the limiting piece 20 connected with the rotatable body 10 of the safety device through the return spring moves eccentrically due to inertia, at this time, the limiting piece 20 pushes the brake block 30 to move rightwards (in fig. 4), and the triggering structure 32 on the brake block 30 triggers the control switch 33 to stop the two driving assemblies 61. At the same time, the permanent magnet embedded in the brake block 30 attracts the magnetizer 14 on the rotatable body 10, so that the rotatable body 10 stops moving, and at this time, the lifting rope 90 wound on the rotatable body 10 does not move any more, thus preventing the grille 52 from continuing to descend. Two safety devices are sufficient to protect the grille 52 from falling even in the event of a breakage of a length of rope.
According to another aspect of the present application, there is provided an air conditioner including the above-mentioned lifting panel. The air conditioner adopting the lifting panel can effectively avoid the grid falling and ensure the safety.
The safety device for the lifting panel, the lifting panel and the air conditioner have the following technical effects:
the problem that the grid falls when the lifting rope is accidentally broken is solved, and the safety can be improved.
The panel mounting frame is connected with the grille through the lifting rope, if the lifting rope is broken accidentally in the lifting process, the rest other side can be controlled to be not continuously unreeled through the safety device, so that the grille can be hung and cannot fall.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (11)
1. A safety device for a lifting panel, comprising:
a rotatable main body (10), wherein a lifting rope (90) for connecting a lifting panel is arranged on the rotatable main body (10);
a stopper (20), the stopper (20) being rotatably provided on the rotatable body (10), and a rotation axis of the stopper (20) being offset from a rotation axis of the rotatable body (10);
a brake shoe (30), the brake shoe (30) having a disengaged position separated from the rotatable body (10) and a braking position in contact with the rotatable body (10), the stopper (20) being rotatable relative to the rotatable body (10) and urging the brake shoe (30) to move to the braking position;
the safety device for the lifting panel further comprises a control switch (33) for closing the driving mechanism and a trigger structure (32) for switching the state of the control switch (33), wherein the trigger structure (32) is arranged on the brake block (30) and moves along with the brake block (30); when the brake block (30) is positioned at a braking position contacting the rotatable body (10), the trigger structure (32) enables the control switch (33) to switch to a state so as to close the driving mechanism.
2. The lifting panel safety device according to claim 1, wherein the stopper (20) has a contact position that contacts the stopper (30) and pushes the stopper (30) to move, the lifting panel safety device further comprising a return structure (40), the return structure (40) being provided between the stopper (20) and the rotatable body (10) and driving the stopper (20) out of the contact position.
3. The lifting panel safety device according to claim 2, wherein the return structure (40) comprises a return spring, a first mounting hole (13) is provided on the rotatable body (10), a second mounting hole is provided on the stopper (20), one end of the return spring is connected to the first mounting hole (13), and the other end of the return spring is connected to the second mounting hole.
4. The lifting panel safety device according to claim 1, wherein a mounting shaft (12) is provided on an end surface of the rotatable body (10), the stopper (20) is rotatably provided on the rotatable body (10) by the mounting shaft (12), and a center of the mounting shaft (12) is offset from a center of the stopper (20) in a longitudinal direction.
5. The safety device for a lifting panel according to claim 1, wherein a winding groove (11) is provided on the circumferential surface of the rotatable body (10), and the hanging rope (90) is wound in the winding groove (11).
6. The lifting panel safety device according to claim 1, wherein the brake pad (30) is in contact with the peripheral surface of the rotatable body (10) when the brake pad (30) is in the braking position.
7. The safety device for a lifting panel according to claim 1 or 6, wherein the brake block (30) is embedded with a magnet or a magnetizer, and the rotatable body (10) is provided with a magnetizer or a magnet on the circumferential surface thereof.
8. A lifting panel comprising a panel mounting frame (51), a grille (52) and a lifting mechanism, wherein the grille (52) is movably connected to the panel mounting frame (51) relative to the panel mounting frame (51) by the lifting mechanism, and the lifting mechanism comprises a safety device which is the safety device for lifting panel according to any one of claims 1 to 7.
9. The lift panel of claim 8, wherein the lift mechanism further comprises:
a driving assembly (61), the driving assembly (61) being provided on the panel mounting frame (51);
the lifting rope (90), the lifting rope (90) is connected to the driving assembly (61), and the driving assembly (61) can retract and release the lifting rope (90), and the lifting rope (90) bypasses the rotatable main body (10) of the safety device and the grille (52).
10. The lifting panel according to claim 8 or 9, characterized in that the lifting mechanism is at least two and is connected to the grille (52) respectively.
11. An air conditioner comprising the lifting panel of any one of claims 8-10.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326529.6A CN107420976B (en) | 2017-05-10 | 2017-05-10 | Safety device for lifting panel, lifting panel and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710326529.6A CN107420976B (en) | 2017-05-10 | 2017-05-10 | Safety device for lifting panel, lifting panel and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107420976A CN107420976A (en) | 2017-12-01 |
| CN107420976B true CN107420976B (en) | 2023-09-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710326529.6A Active CN107420976B (en) | 2017-05-10 | 2017-05-10 | Safety device for lifting panel, lifting panel and air conditioner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107420976B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7066018B2 (en) * | 2020-02-27 | 2022-05-12 | 日立ジョンソンコントロールズ空調株式会社 | Ceiling embedded air conditioner and installation method |
| CN114183814A (en) * | 2021-12-03 | 2022-03-15 | 美的集团武汉暖通设备有限公司 | Indoor unit, related equipment of indoor unit and control method of indoor unit |
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| CN102849563A (en) * | 2011-06-28 | 2013-01-02 | 东芝电梯株式会社 | Rope installing clamp |
| CN205367514U (en) * | 2015-12-29 | 2016-07-06 | 石家庄铁道大学 | A anti -falling device for hoisting machinery hoisting mechanism |
| CN206890680U (en) * | 2017-05-10 | 2018-01-16 | 珠海格力电器股份有限公司 | Lift panel safety device, lifting panel and air conditioner |
| CN217813232U (en) * | 2022-06-12 | 2022-11-15 | 陕西逸辰昶实业有限公司 | Energy-saving hollow glass louver |
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