CN115264618A - Lifting device, panel assembly and air conditioner - Google Patents

Abstract

The invention discloses a lifting device, a panel assembly and an air conditioner, and relates to the technical field of air conditioning equipment, wherein the lifting device comprises a base, a driving mechanism, a pressing plate mechanism and an elastic mechanism, the driving mechanism comprises a motor, a roller and a pressing wheel, the motor is fixedly connected to the base, the roller and the pressing wheel are arranged at intervals, and the motor is in transmission connection with the roller and the pressing wheel so as to drive the roller and the pressing wheel to rotate; the pressing plate mechanism comprises a hinged part, a first pressing plate and a second pressing plate, the hinged part can rotate relative to the base, the first pressing plate and the second pressing plate are connected to the hinged part, and a space for the traction rope to pass through is formed between the first pressing plate and the pressing wheel; the elastic mechanism is fixedly connected to the base, and the end part of the elastic mechanism is abutted to the second pressing plate. The invention can solve the problem that the traction rope can not be normally wound and unwound when in an unstressed state, and improves the winding and unwinding running stability of the lifting device.

Description

Lifting device, panel assembly and air conditioner

Technical Field

The invention relates to the technical field of air conditioning equipment, in particular to a lifting device, a panel assembly and an air conditioner.

Background

A built-in type air conditioner, such as a duct unit, etc., is generally installed on a ceiling or a ceiling, and thus it is inconvenient to clean a panel, especially a grill and a screen. In the related art, the ducted air conditioner controls the traction rope to be wound and unwound by adopting the roller for winding the traction rope so as to control the lifting of the panel, and then a user can conveniently clean the panel. However, because the panel usually adopts many haulage ropes to hang the drive, when many haulage ropes motion is asynchronous, partial haulage rope can be because of being in not stress state and unable normal receipts and unreels, and then appear lax, drunkenness, rope skipping scheduling problem, lead to panel skew, upset, can cause haulage rope winding card to die when serious.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a lifting device which can effectively solve the problem that a traction rope cannot be normally wound and unwound when the traction rope is in an unstressed state.

The invention also provides a panel assembly with the lifting device.

The invention also provides an air conditioner with the panel assembly.

According to an embodiment of the first aspect of the invention, the lifting device comprises: a base; the driving mechanism comprises a motor, a roller and a pressing wheel, the motor is fixedly connected to the base, the roller and the pressing wheel are arranged at intervals, and the motor is in transmission connection with the roller and the pressing wheel so as to drive the roller and the pressing wheel to rotate; the pressing plate mechanism comprises a hinged part, a first pressing plate and a second pressing plate, the hinged part can rotate relative to the base, the first pressing plate and the second pressing plate are connected to the hinged part, and a space for the traction rope to pass through is formed between the first pressing plate and the pressing wheel; and the elastic mechanism is fixedly connected to the base, and the end part of the elastic mechanism is abutted to the second pressing plate.

The lifting device provided by the embodiment of the invention at least has the following beneficial effects:

the part where the pinch roller, the pressing plate mechanism and the elastic mechanism are matched is arranged at the rope outlet position of the roller for winding the traction rope, the pressing plate mechanism can rotate relative to the base, the pinch roller is driven by the motor and forms a space for the traction rope to pass through with the first pressing plate, and the end part of the elastic mechanism is abutted against the second pressing plate and provides supporting force; when the traction rope is stressed, the traction rope presses the first pressing plate and is guided to be wound and unwound through the first pressing plate, the second pressing plate is pressed to the elastic mechanism to enable the elastic mechanism to be compressed and to have pretightening force, when the traction rope is not stressed, the second pressing plate is reset under the pretightening force of the elastic mechanism to enable the first pressing plate to press the traction rope to the pressing wheel, and the traction rope is wound and unwound under the driving of the pressing wheel; this embodiment can make the haulage rope between gyro wheel and the pinch roller keep the state of tightening for the haulage rope can receive and unreel in an orderly manner, thereby solves the problem that the haulage rope can't normally receive and unreel when being in not stress state, has promoted elevating gear and has received and unreel the stability of operation.

According to some embodiments of the invention, the first presser plate is provided with a guide groove, a width of which is gradually reduced in a direction away from the roller.

According to some embodiments of the invention, a limiting rib is arranged at one end of the first pressing plate, which is far away from the roller, and the limiting rib and the first pressing plate enclose to form a channel for the traction rope to pass through.

According to some embodiments of the present invention, the hinge portion is a hinge shaft rotatably connected to the base, one end of the first pressing plate and one end of the second pressing plate are respectively and fixedly connected to the hinge shaft, and the other end of the first pressing plate and the other end of the second pressing plate are connected by a connecting plate.

According to some embodiments of the invention, the resilient mechanism is a microswitch, a contact of the microswitch abutting the second pressure plate.

According to some embodiments of the present invention, the driving mechanism further includes a rotating shaft and a driven wheel, the rotating shaft is fixedly connected with the driven wheel and the pressing wheel, and the roller is in driving connection with the driven wheel.

According to some embodiments of the invention, the side wall of the roller is provided with a first groove along the circumferential direction of the roller, the circumferential wall of the driven wheel is provided with a second groove, and a transmission belt is sleeved between the second groove and the first groove.

According to some embodiments of the invention, the pressing wheel comprises a wheel body and pressing ribs, and the pressing ribs are fixedly connected to the circumferential wall of the wheel body and are arranged at intervals along the circumferential direction of the wheel body.

According to some embodiments of the present invention, the roller is provided with a rope groove, the rope groove comprises at least one linear groove group and at least one broken line groove group, the linear groove group extends along the circumferential direction of the roller, each linear groove group comprises a plurality of sections of linear grooves arranged at intervals along the axial direction of the roller, each broken line groove group comprises a plurality of sections of linear grooves arranged at intervals along the axial direction of the roller, and the plurality of sections of linear grooves and the plurality of sections of broken line grooves are sequentially connected to form a groove body continuously extending along the bottom wall of the roller.

According to some embodiments of the present invention, there are two of the linear groove groups and the polygonal line groove group, and the linear grooves of the two linear groove groups are offset by 1/2 groove distance in an axial direction of the roller.

According to some embodiments of the present invention, the two linear groove sets respectively correspond to an arc angle of 3 pi/4 of the roller, and the two broken line groove sets respectively correspond to an arc angle of pi/4 of the roller.

According to some embodiments of the invention, the rope groove further comprises a first transition groove, the first transition groove is arranged at the tail end of the groove body, and is arranged on the side wall of the roller facing to the side of the tail end of the groove body.

According to some embodiments of the invention, the rope groove further comprises a second transition groove, and the second transition groove is arranged on a side wall of the roller facing to the head end side of the groove body.

The panel assembly according to the second aspect of the embodiment of the invention comprises a face frame, a mounting hole and a mounting hole, wherein the face frame is provided with the mounting hole; the grid plate is used for being mounted at the mounting opening, and one end, facing the mounting opening, of the grid plate is provided with a guide column; the lifting device of the above embodiment is provided with at least two lifting devices, the at least two lifting devices are arranged on the face frame at intervals, and the lifting devices are connected with the grid plate through a traction rope and are provided with guide holes matched with the guide columns.

The panel assembly according to the embodiment of the invention has at least the following beneficial effects:

the lifting device of the embodiment of the first aspect is adopted to drive the grid plate to move up and down, the lifting device is provided with a pinch roller, a pressing plate mechanism and an elastic mechanism which are matched with each other at a rope outlet position of a roller for winding a traction rope, the pressing plate mechanism can rotate relative to a base, the pinch roller is driven by a motor and forms a space for the traction rope to pass through with a first pressing plate, and the end part of the elastic mechanism is abutted against a second pressing plate and provides supporting force; when the traction rope is stressed, the traction rope presses the first pressing plate and is guided to be wound and unwound through the first pressing plate, the second pressing plate is pressed to the elastic mechanism to enable the elastic mechanism to be compressed and to have pretightening force, when the traction rope is not stressed, the second pressing plate is reset under the pretightening force of the elastic mechanism to enable the first pressing plate to press the traction rope to the pressing wheel, and the traction rope is wound and unwound under the driving of the pressing wheel; this embodiment can make the haulage rope between gyro wheel and the pinch roller keep the state of tightening for the haulage rope can receive and unreel in an orderly manner, thereby solves the problem that the haulage rope can't normally receive and unreel when being in not stress state, has solved the shake problem of grid board operation in-process, has promoted the stability when the grid board of panel subassembly moves.

An air conditioner according to an embodiment of a third aspect of the present invention includes the panel assembly described in the above embodiments.

The air conditioner provided by the embodiment of the invention has at least the following beneficial effects:

the panel assembly is adopted, the panel assembly drives the grid plate to move up and down by arranging the lifting device, the lifting device is provided with a pressing wheel, a pressing plate mechanism and an elastic mechanism which are matched with each other at a rope outlet position of a roller for winding the traction rope, the pressing plate mechanism can rotate relative to the base, the pressing wheel is driven by a motor and forms a space for the traction rope to pass through with the first pressing plate, and the end part of the elastic mechanism is abutted against the second pressing plate and provides supporting force; when the traction rope is stressed, the traction rope presses the first pressing plate and is guided to be wound and unwound through the first pressing plate, the second pressing plate is pressed to the elastic mechanism to enable the elastic mechanism to be compressed and to have pretightening force, when the traction rope is not stressed, the second pressing plate is reset under the pretightening force of the elastic mechanism to enable the first pressing plate to press the traction rope to the pressing wheel, and the traction rope is wound and unwound under the driving of the pressing wheel; this embodiment can make the haulage rope between gyro wheel and the pinch roller keep the state of tightening for the haulage rope can receive and unreel in an orderly manner, thereby solves the problem that the haulage rope can't normally receive and unreel when being in not stress state, has solved the shake problem of grid board operation in-process, has promoted the stability when the grid board of panel components moves, and then has reduced the fault rate of air conditioner.

Additional aspects and advantages of the invention 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 invention.

Drawings

The invention is further described with reference to the following figures and examples, in which:

FIG. 1 is a schematic structural view of an air conditioner according to an embodiment of the present invention, in which a grill plate is assembled with a face frame;

FIG. 2 is a schematic structural view of an air conditioner according to an embodiment of the present invention, wherein the grill plate is in a state of being detached from the face frame;

FIG. 3 is a schematic top view of the air conditioner shown in FIG. 2;

FIG. 4 is a schematic structural diagram of a lifting device according to an embodiment of the present invention;

FIG. 5 is a schematic view of the elevator apparatus shown in FIG. 4 with the roller cover removed;

FIG. 6 is a schematic view of the lifting device shown in FIG. 4 showing the structure of the driving mechanism, the pressing plate mechanism and the elastic mechanism;

FIG. 7 is an enlarged schematic view of the platen mechanism of one embodiment of FIG. 6;

FIG. 8 is an enlarged schematic view of a portion of the structure of the drive mechanism of one embodiment of FIG. 6;

FIG. 9 is an exploded view of the lift device shown in FIG. 4;

FIG. 10 is a schematic front view of a roller of the elevator apparatus according to an embodiment of the present invention;

FIG. 11 is an enlarged view at C of FIG. 10;

FIG. 12 is an angled configuration of the roller shown in FIG. 10;

FIG. 13 is a schematic view of another angular configuration of the roller shown in FIG. 10;

FIG. 14 is an enlarged view taken at A in FIG. 2;

fig. 15 is an enlarged view at B in fig. 3.

Reference numbers:

a lifting device 1000; a face frame 2000; a mounting opening 2100; a grid plate 3000; a guide post 3100; an air deflector 4000;

a base 100;

a drive mechanism 200; a motor 210; a roller 220; a first groove 221; a pressure roller 230; a wheel body 231; pressing ribs 232; a rotating shaft 240; a driven pulley 250; the second groove 251; a belt 260; a rope groove 270; a linear groove group 271; linear grooves 2711; a group of polygonal line slots 272; a polygonal line slot 2721; a first transition groove 273; a second transition groove 274;

a platen mechanism 300; a hinge portion 310; a hinge shaft 311; a first presser plate 320; the guide groove 321; a limiting rib 322; a first bending member 3221; a second bending member 3222; a notch 3223; a second platen 330; a connecting plate 340;

an elastic mechanism 400; a microswitch 410; a contact 411;

a motor cover 500;

a roller cover 600;

a guide hole 700;

a tether 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, for example, the upper, lower, etc., is indicated based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, a plurality means two or more. 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.

Referring to fig. 1 and 2, an air conditioner according to an embodiment of the present invention may be an embedded air conditioner such as a ducted air conditioner or a ceiling air conditioner, or a wall-mounted air conditioner such as a pedestal crane. In order to more clearly describe the technical solution of the embodiment, the embodiment of the present invention is described by taking an air duct machine as an example. The air duct machine of the embodiment of the invention comprises a panel component, wherein the panel component is positioned at the lower end of the air duct machine and comprises a face frame 2000, a grid plate 3000 and an air deflector 4000, the face frame 2000 is provided with an air inlet (not shown) and an air outlet (not shown), the grid plate 3000 is arranged at the air inlet, and the air deflector 4000 is arranged at the air outlet.

Because the ducted air conditioner and the like are usually installed on a ceiling or a ceiling, in order to facilitate cleaning of the grid plate 3000, the panel assembly of the embodiment of the present invention further includes a lifting device 1000, the lifting device 1000 uses a traction rope 800 to drive the grid plate 3000 to move up and down, the traction rope 800 may be a steel wire rope or the like, one end of the traction rope 800 is fixed to the lifting device 1000, the other end of the traction rope is fixed to the grid plate 3000, the lifting device 1000 may be provided with four groups, the traction ropes 800 of the four groups of lifting devices 1000 are respectively and correspondingly fixed to four corners of the grid plate 3000, the four lifting devices 1000 jointly drive the grid plate 3000 to stably lower the grid plate 3000 to a height which a user can conveniently touch, so as to facilitate user to detach and clean, after cleaning is completed, the lifting device 1000 lifts the grid plate 3000 to an air inlet, thereby satisfying normal operation requirements of the ducted air conditioner.

Referring to fig. 4 and 5, a lifting device 1000 according to an embodiment of the present invention includes a base 100, a driving mechanism 200, a pressing plate mechanism 300, and an elastic mechanism 400. It is understood that the lifting device 1000 may be fixedly connected to the face frame 2000 through the base 100. The driving mechanism 200, the pressing plate mechanism 300 and the elastic mechanism 400 are all mounted on the base 100 and are matched to control the traction rope 800, so that the traction rope 800 can be normally wound and unwound. The driving mechanism 200 includes a motor 210 and a roller 220, the motor 210 is fixedly connected to the base 100, and an output shaft of the motor 210 is connected to the roller 220, so as to drive the roller 220 to rotate forward or backward; the roller 220 is used for winding the traction rope 800, and unwinding or winding of the traction rope 800 is realized through rotation. The driving mechanism 200 further comprises a pressing wheel 230, the roller 220 and the pressing wheel 230 are arranged at intervals, and the pressing wheel 230 can be arranged at the rope outlet of the roller 220 to meet the requirement that mutual interference does not occur. The motor 210 can drive the pressing wheel 230 to rotate through a gear transmission, a belt transmission, and the like, and the specific transmission manner is not limited in detail here. In order to ensure the clamping effect of the pressing wheel 230 and enable the traction rope 800 to be stably wound and unwound, the linear speed of the rope output from the roller 220 is generally designed to be the same as the linear speed of the pressing part of the pressing wheel 230.

Referring to fig. 6 and 7, it will be appreciated that platen mechanism 300 includes a hinge portion 310, a first platen 320 and a second platen 330, the first platen 320 being connected to the hinge portion 310 and the second platen 330 also being connected to the hinge portion 310, the first platen 320 and the second platen 330 forming a non-zero included angle. It is understood that the first pressing plate 320 may be directly fixedly connected to the hinge portion 310, or may be indirectly fixed to the hinge portion 310 through the second pressing plate 330; the second pressing plate 330 may be directly fixedly connected to the hinge portion 310, or may be indirectly fixed to the hinge portion 310 through the first pressing plate 320. Hinge 310 is able to rotate relative to base 100, thereby enabling first platen 320 and second platen 330 to rotate relative to base 100. A space for the pulling rope 800 to pass through is formed between the first pressing plate 320 and the pressing wheel 230, and after the pulling rope 800 is taken out from the roller 220, the pulling rope passes through the space formed by the first pressing plate 320 and the pressing wheel 230 and then is downwards connected to the grid plate 3000.

Referring to fig. 5 and 6, it can be understood that the elastic means 400 is provided at a position to be matched with the rotation trace of the pressing plate means 300. The end of the elastic mechanism 400 abuts against the second presser plate 330 and provides a supporting force to the second presser plate 330. The end of the elastic mechanism 400 can be compressed under the action of the second pressure plate 330 and provides a pre-tightening force, i.e., can be compressed in the rotation direction of the second pressure plate 330.

In the lifting device 1000 according to the embodiment of the present invention, when the pulling rope 800 is under a stress, the pulling rope 800 presses the first pressing plate 320 and is guided to be retracted and unwound by the first pressing plate 320, at this time, the pressing wheel 230 is not in contact with the pulling rope 800, and therefore does not function, the movement of the pulling rope 800 is not hindered, and the second pressing plate 330 is pressed towards the elastic mechanism 400, so that the elastic mechanism 400 is compressed and has a pre-tightening force; when the pulling rope 800 is not stressed, the pulling rope 800 is in a loose state, the second pressing plate 330 is reset under the pretightening force of the elastic mechanism 400, so that the first pressing plate 320 presses the pulling rope 800 to the pressing wheel 230 to assist the movement of the pulling rope 800, and the pulling rope 800 is wound and unwound under the driving of the pressing wheel 230. Therefore, the embodiment of the invention can keep the traction rope 800 between the rope outlet end of the roller 220 and the outer peripheral wall of the pressing wheel 230 in a tightened state, so that the traction rope 800 can be orderly wound and unwound, thereby solving the problem that the traction rope 800 cannot be normally wound and unwound when in an unstressed state, and improving the winding and unwinding operation stability of the lifting device 1000.

Referring to fig. 7, it can be understood that, in order to better guide the traction rope 800, the first pressing plate 320 is provided with a guide groove 321, the traction rope 800 moves in the guide groove 321, and the side wall of the guide groove 321 guides and limits the traction rope 800. Along the direction of keeping away from gyro wheel 220, the width of guide way 321 reduces gradually to make the haulage rope 800 that gyro wheel 220 goes out the rope can lead the guide again downwards after placed in the middle, promoted the smooth and easy nature in the haulage rope 800 motion process, reduce the risk that haulage rope 800 takes place to take off the groove.

Referring to fig. 7, it can be understood that the first pressing plate 320 is provided with a limiting rib 322, the limiting rib 322 is provided at an end of the first pressing plate 320 away from the roller 220, and the traction rope 800 is guided to be centered by the guide groove 321 and then further guided by the limiting rib 322. It can be understood that the limiting rib 322 and the first pressing plate 320 enclose a channel (not shown in the figure) for the pulling rope 800 to pass through, and the channel can guide the pulling rope 800 and is also used for preventing rope skipping when the pulling rope 800 is guided downwards, so that the running stability of the pulling rope 800 is improved. It can be understood that the limiting rib 322 of the embodiment of the present invention includes a first bending element 3221 and a second bending element 3222, a fixed end of the first bending element 3221 and a fixed end of the second bending element 3222 are connected to the first pressing plate 320 and are spaced apart from each other in a width direction of the first pressing plate 320, a free end of the first bending element 3221 extends toward the second bending element 3222 in a bending manner, and a free end of the second bending element 3222 extends toward the first bending element 3221 in a bending manner. A notch 3223 is formed between the free end of the first bending section and the free end of the second bending section, so that the traction rope 800 can be conveniently loaded into the channel through the notch 3223, the assembly difficulty is reduced, and the assembly efficiency is improved.

Referring to fig. 7, it can be understood that in the lifting device 1000 according to an embodiment of the present invention, the hinge portion 310 is a hinge shaft 311, and the hinge shaft 311 is inserted into the base 100 and rotatably connected to the base 100. One end of the first presser plate 320 is fixedly coupled to the hinge shaft 311, and one end of the second presser plate 330 is fixedly coupled to the hinge shaft 311. The pressing plate mechanism 300 further comprises a connecting plate 340, and the other end of the first pressing plate 320 is connected with the other end of the second pressing plate 330 through the connecting plate 340, so that the first pressing plate 320, the second pressing plate 330 and the connecting plate 340 form a triangular stable structure, the connection stability of the first pressing plate 320 and the second pressing plate 330 is improved, and the structural strength of the pressing plate mechanism 300 is further improved.

Referring to fig. 5 and 6, it can be understood that, in the lifting device 1000 according to an embodiment of the present invention, the elastic mechanism 400 is a micro switch 410, the micro switch 410 is installed on the base 100, and the contact 411 of the micro switch 410 has elasticity, and the contact 411 of the micro switch 410 is abutted to the second pressing plate 330, so that an effect on the second pressing plate 330 can be achieved, and whether the pulling rope 800 is stressed can be detected by the micro switch 410, so that the lifting movement of the grid plate 3000 can be controlled.

Referring to fig. 5 and 6, it can be understood that in the lifting device 1000 according to the embodiment of the present invention, the driving mechanism 200 further includes a rotating shaft 240 and a driven wheel 250, the driven wheel 250 and the pressing wheel 230 are fixed to the rotating shaft 240, and the rotating shaft 240 is inserted into the base 100 and rotatably connected to the base 100. The roller 220 is connected to the driven wheel 250, so as to drive the rotating shaft 240 to rotate, and further drive the pressing wheel 230 to rotate, the structure is simpler and lighter, and the miniaturization of the lifting device 1000 is facilitated.

Referring to fig. 6 and 8, it can be appreciated that the rollers 220 and the driven wheels 250 are in belt transmission. The side wall of the roller 220 is provided with a first groove 221 along the circumferential direction of the roller 220, the circumferential wall of the driven wheel 250 is provided with a second groove 251, and a driving belt 260 is sleeved between the second groove 251 and the first groove 221. Through the mode of drive belt 260, can effectively utilize elevating gear 1000's inner space, simplify the structure of actuating mechanism 200's spare part, guarantee that gyro wheel 220 and pinch roller 230 can not appear the speed difference, make haulage rope 800 between the play rope end of gyro wheel 220 and the periphery wall of pinch roller 230 keep the state of tightening, take place to curl when avoiding haulage rope 800 to receive again and unreel, effectively cut off the mutual influence between gyro wheel 220 and check grid plate 3000.

Referring to fig. 8, it can be understood that the pinch roller 230 includes a roller body 231 and a plurality of beads 232, the beads 232 are fixedly connected to the circumferential wall of the roller body 231, the beads 232 are provided in a plurality of numbers, the plurality of beads 232 are arranged along the circumferential direction of the roller body 231 at intervals, the arrangement of the beads 232 can improve the stability of the matching transmission between the pinch roller 230 and the traction rope 800, and the circumferential wall of the traction rope 800 and the pinch roller 230 is prevented from slipping. It can be appreciated that the wheel body 231 and the beads 232 are integrally formed, so that the structure of the pressing wheel 230 is more stable.

It can be understood that, with the lifting device 1000 according to the above embodiment of the present invention, assuming that the rope skipping accident occurs on the roller 220, the rope in the roller 220 is curled, and the abnormality is isolated by the combined action of the pressing wheel 230, the pressing plate mechanism 300 and the elastic mechanism 400, and cannot be transmitted to the rope hanging end of the grid plate 3000, so that the grid plate 3000 shakes. Meanwhile, when the rope hanging end of the grid plate 3000 is not stressed to curl, the abnormality can be isolated under the combined action of the pressing wheel 230, the pressing plate mechanism 300 and the elastic mechanism 400, and the traction rope 800 is not influenced to wind in and out of the roller 220.

Referring to fig. 9, in order to prevent the moving parts in the lifting device 1000 from interfering with other parts of the panel assembly and to prevent dust from being required in the lifting device 1000, the lifting device 1000 further includes a motor cover 500 and a roller cover 600. Motor cover 500 and roller cover 600 are fixed connection in base 100 both sides respectively, and motor 210 fixed connection is in base 100 and lie in motor cover 500 and base 100 enclose and establish the space, and roller 220 and motor 210's output shaft fixed connection lie in roller cover 600 and base 100 enclose and establish the space. The provision of the roller cover 600 and the motor cover 500 can protect the components inside the elevating device 1000. In order to facilitate maintenance and service of the lifting device 1000, the motor cover 500 and the roller cover 600 may be detachably connected to the base 100, for example, by using a snap connection, a screw connection, and the like, which are not limited in detail herein.

It can be understood that the diapire of gyro wheel 220 is used for convoluteing haulage rope 800, but the diapire of traditional gyro wheel 220 is the plain noodles, can appear locally piling up during the haulage rope 800 wiring, and the wiring position receives out the rope angle influence moreover, forms unordered alternately easily and piles up, leads to the indiscriminate rope of haulage rope 800, and the clearance is inhomogeneous, still can appear the rope collapsing phenomenon when piling up too high, has aggravated the friction loss between haulage rope 800, influences life. In order to solve the above problem, the roller 220 according to the embodiment of the present invention is provided with the rope groove 270.

Referring to fig. 10 and 11, the rope groove 270 includes two linear groove sets 271 and two broken line groove sets 272 extending along the circumferential direction of the roller 220, and the two linear groove sets 271 and the two broken line groove sets 272 are sequentially connected, that is, two ends of each linear groove set 271 are respectively connected with one broken line groove set 272. The linear grooves 2711 of the two linear groove groups 271 are offset by 1/2 groove pitch in the axial direction of the roller 220. Each linear groove group 271 comprises a plurality of linear grooves 2711, the plurality of linear grooves 2711 are arranged along the axial direction of the roller 220 at intervals, each linear groove group 272 comprises a plurality of linear grooves 2721, the plurality of linear grooves 2721 are arranged along the axial direction of the roller 220 at intervals, the linear grooves 2711 of two adjacent linear groove groups 271 in the circumferential direction of the roller 220 can guide and wind ropes through the linear grooves 2721, and the linear grooves 2721 can avoid crossing of the winding ropes along the adjacent axial linear grooves 2711 to perform regular transition. The multiple linear grooves 2711 and the multiple bending grooves 2721 are sequentially connected to form a first groove (not shown) continuously extending along the bottom wall of the roller 220. The haulage rope 800 is convoluteed under the guide of first layer cell body and is formed first layer haulage rope (not shown in the figure), leads and spacing when wiring haulage rope 800 for haulage rope 800 can orderly regular winding, avoids haulage rope 800 phenomenons such as rope skipping, rope collapse to appear.

Referring to fig. 10 and 12, it can be understood that the two linear groove sets 271 correspond to the same arc angle of the roller 220 and are both 3 pi/4, and the two polygonal line groove sets 272 correspond to the same arc angle of the roller 220 and are both pi/4. By adopting the parameter setting, the transition of the linear groove 2711 and the broken line groove 2721 can be smoother, the stability of the rope winding of the traction rope 800 is facilitated, and the integral winding of the first layer groove body is smoother and more stable.

It is understood that the number of the linear groove groups 271 and the polygonal line groove groups 272 is the same, and each of the linear groove groups and the polygonal line groove groups 272 may be one, three or more, and may be selected according to the inner diameter of the rope groove 270 of the roller 220, and is not particularly limited herein.

Referring to fig. 12, it can be understood that the rope groove 270 further includes a first transition groove 273, the first transition groove 273 is disposed at the tail end of the first layer groove body, the first transition groove 273 is disposed at the side wall of the roller 220 facing the tail end of the first layer groove body, the first transition groove 273 is used for matching with the leftmost end of the second layer of traction rope (not shown in the figure), the first transition groove 273 is formed by the first layer groove body climbing towards the outer peripheral wall of the roller 220, under the guiding action of the first transition groove 273, the traction rope 800 gradually climbs from the first layer to the second layer, the second layer of traction rope gradually deviates 1/2 of the groove distance leftwards along the axial direction of the roller 220, and is guided and limited radially and axially through the gap formed between the first layer of traction ropes, and finally wound to form the second layer of traction rope, thereby ensuring the smoothness and stability of winding of the second layer of traction rope.

Referring to fig. 13, it can be understood that the rope groove 270 further includes a second transition groove 274, and the second transition groove 274 is provided at a side wall of the roller 220 facing the head end side of the first layer groove, i.e., at the rope end position of the traction rope 800. The second transition groove 274 is matched with the rightmost end of the second layer of the hauling rope, and guides the hauling rope 800 to gradually climb from the second layer to the third layer, thereby ensuring the smoothness and stability of the integral winding of the second layer of the hauling rope.

Referring to fig. 1, 2 and 3, a panel assembly according to an embodiment of the present invention includes a panel frame 2000, a grating plate 3000 and the lifting device 1000 according to the above embodiment. The face frame 2000 is provided with an installation opening 2100 for installing the grating plate 3000, and the installation opening 2100 is arranged corresponding to the position of the air inlet.

In order to improve the mounting accuracy of the grid plate 3000 and the mounting opening 2100, as shown in fig. 3 and 15, a guide column 3100 is provided at the upper end of the grid plate 3000; referring to fig. 2 and 14, the lower end of the lifting device 1000 is provided with a guide hole 700 with a downward opening, and the guide hole 700 cooperates with the guide column 3100 to realize the guiding and limiting of the grid plate 3000 and the mounting opening 2100. It can be understood that at least two lifting devices 1000 are provided, at least two lifting devices 1000 are spaced apart from the face frame 2000, the lifting devices 1000 are connected to the grid plate 3000 through the pulling rope 800, each lifting device 1000 is provided with a guiding hole 700, and the grid plate 3000 is provided with a guiding column 3100 engaged with the guiding hole 700 at a position corresponding to each lifting device 1000.

In the panel assembly of the embodiment of the present invention, the lifting device 1000 of the first aspect embodiment is adopted to drive the grid plate 3000 to move up and down, the lifting device 1000 is provided with a pressing wheel 230, a pressing plate mechanism 300 and an elastic mechanism 400 at the rope outlet position of the roller 220 for winding the traction rope 800, the pressing plate mechanism 300 can rotate relative to the base 100, the pressing wheel 230 is driven by the motor 210 and forms a space for the traction rope 800 to pass through with the first pressing plate 320, and the end of the elastic mechanism 400 abuts against the second pressing plate 330 and provides a supporting force; when the traction rope 800 is stressed, the traction rope 800 presses the first pressing plate 320 and is guided to be wound and unwound through the first pressing plate 320, the second pressing plate 330 is pressed to the elastic mechanism 400, the elastic mechanism 400 is compressed and has pretightening force, when the traction rope 800 is not stressed, the second pressing plate 330 is reset under the pretightening force of the elastic mechanism 400, the first pressing plate 320 presses the traction rope 800 to the pressing wheel 230, and the traction rope 800 is wound and unwound under the driving of the pressing wheel 230; the embodiment can keep the traction rope 800 between the roller 220 and the pressing wheel 230 in a tightened state, so that the traction rope 800 can be orderly wound and unwound, and the problem that the traction rope 800 cannot be normally wound and unwound when being in an unstressed state is solved. Moreover, the embodiment of the invention adopts at least two lifting devices 1000, and when the traction ropes 800 of part of the lifting devices 1000 are not stressed, normal winding and unwinding can be still realized, so that the problems of deviation, shaking, overturning and the like of the rope winding of the roller 220 and the lifting process of the grid plate 3000 are solved, and the stability of the grid plate 3000 of the panel assembly in operation is improved.

Since the panel assembly adopts all the technical solutions of the lifting device 1000 of the above embodiment, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is provided herein.

Referring to fig. 1 and 2, an air conditioner according to an embodiment of the present invention includes the panel assembly of the above embodiment. The air conditioner of the embodiment of the invention can be an air duct machine, a ceiling machine, a seat crane and the like. The air conditioner of the embodiment of the invention adopts the panel component of the embodiment of the second aspect, the panel component drives the grid plate 3000 to move up and down by arranging the lifting device 1000, the lifting device 1000 arranges the pressing wheel 230, the pressing plate mechanism 300 and the elastic mechanism 400 at the rope outlet position of the roller 220 for winding the traction rope 800, the pressing plate mechanism 300 can rotate relative to the base 100, the pressing wheel 230 is driven by the motor 210 and forms a space for the traction rope 800 to pass through with the first pressing plate 320, and the end part of the elastic mechanism 400 is abutted against the second pressing plate 330 and provides supporting force; when the traction rope 800 is stressed, the traction rope 800 presses the first pressing plate 320 and is guided to be wound and unwound through the first pressing plate 320, the second pressing plate 330 is pressed to the elastic mechanism 400, the elastic mechanism 400 is compressed and has pretightening force, when the traction rope 800 is not stressed, the second pressing plate 330 is reset under the pretightening force of the elastic mechanism 400, the first pressing plate 320 presses the traction rope 800 to the pressing wheel 230, and the traction rope 800 is wound and unwound under the driving of the pressing wheel 230; this embodiment can make haulage rope 800 between gyro wheel 220 and the pinch roller 230 keep the state of tightening for haulage rope 800 can receive and unreel in an orderly manner, thereby solves the problem that haulage rope 800 can't normally receive and unreel when being in not stress state, has solved the shake problem of grid plate 3000 operation in-process, and the stability when having promoted panel assembly's grid plate 3000 operation has further reduced the fault rate of air conditioner.

Since the air conditioner adopts all the technical solutions of the panel assembly of the above embodiments, at least all the beneficial effects brought by the technical solutions of the above embodiments are achieved, and no further description is given here.

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.

Claims (15)

1. Elevating gear, its characterized in that includes:

a base;

the driving mechanism comprises a motor, a roller and a pressing wheel, the motor is fixedly connected to the base, the roller and the pressing wheel are arranged at intervals, and the motor is in transmission connection with the roller and the pressing wheel so as to drive the roller and the pressing wheel to rotate;

the pressing plate mechanism comprises a hinged part, a first pressing plate and a second pressing plate, the hinged part can rotate relative to the base, the first pressing plate and the second pressing plate are connected to the hinged part, and a space for the traction rope to pass through is formed between the first pressing plate and the pressing wheel;

and the elastic mechanism is fixedly connected to the base, and the end part of the elastic mechanism is abutted to the second pressing plate.

2. The lifting device according to claim 1, characterized in that: the first pressing plate is provided with a guide groove, and the width of the guide groove is gradually reduced along the direction away from the roller.

3. Lifting device according to claim 1 or 2, characterized in that: the end, far away from the gyro wheel, of the first pressing plate is provided with a limiting rib, and the limiting rib and the first pressing plate enclose to form a channel for the traction rope to pass through.

4. The lifting device according to claim 1, characterized in that: the hinged part is a hinged shaft which is rotatably connected with the base, one end of the first pressing plate and one end of the second pressing plate are respectively and fixedly connected with the hinged shaft, and the other end of the first pressing plate is connected with the other end of the second pressing plate through a connecting plate.

5. The lifting device according to claim 1, characterized in that: the elastic mechanism is a microswitch, and a contact of the microswitch is abutted to the second pressing plate.

6. The lifting device according to claim 1, characterized in that: the driving mechanism further comprises a rotating shaft and a driven wheel, the rotating shaft is fixedly connected with the driven wheel and the pressing wheel, and the roller is in driving connection with the driven wheel.

7. The lifting device as claimed in claim 6, wherein: the side wall of the roller is provided with a first groove along the circumferential direction of the roller, the circumferential wall of the driven wheel is provided with a second groove, and a transmission belt is sleeved between the second groove and the first groove.

8. The lifting device according to claim 1, characterized in that: the pinch roller comprises a roller body and a pressing rib, wherein the pressing rib is fixedly connected to the peripheral wall of the roller body and arranged at intervals along the circumferential direction of the roller body.

9. The lifting device according to claim 1, characterized in that: the roller is provided with a rope groove, the rope groove comprises at least one straight line groove group and at least one broken line groove group, the straight line groove group and the broken line groove group extend along the circumferential direction of the roller, each straight line groove group comprises a plurality of sections of straight line grooves arranged along the axial direction of the roller at intervals, each broken line groove group comprises a plurality of sections of straight line grooves arranged along the axial direction of the roller at intervals, and the plurality of sections of straight line grooves and the plurality of sections of broken line grooves are sequentially connected to form a groove body extending along the bottom wall of the roller continuously.

10. The lifting device as claimed in claim 9, characterized in that: the number of the linear groove groups and the number of the broken line groove groups are two, and the linear grooves of the two linear groove groups are axially offset by 1/2 of the groove distance along the roller.

11. The lifting device as claimed in claim 10, characterized in that: the two linear groove groups respectively correspond to the arc angles of the roller wheels and are 3 pi/4, and the two broken line groove groups respectively correspond to the arc angles of the roller wheels and are pi/4.

12. The lifting device as claimed in claim 9, characterized in that: the rope groove further comprises a first transition groove, the first transition groove is arranged at the tail end of the groove body and is arranged on the side wall of the roller facing the tail end of the groove body.

13. The lifting device according to claim 9 or 12, characterized in that: the rope groove further comprises a second transition groove, and the second transition groove is formed in the side wall, facing one side of the head end of the groove body, of the roller.

14. A panel assembly, comprising:

the face frame is provided with a mounting opening;

the grid plate is used for being mounted at the mounting opening, and one end, facing the mounting opening, of the grid plate is provided with a guide column;

the lifting device as claimed in any one of claims 1 to 13, wherein at least two lifting devices are provided, at least two lifting devices are spaced apart from each other on the face frame, the lifting devices are connected to the grid plates by traction ropes, and are provided with guide holes for engaging with the guide posts.

15. An air conditioner, characterized in that: comprising the panel assembly of claim 14.

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