CN215292285U - Single-motor lifting and pitching adjusting mechanism and shutter - Google Patents

Abstract

The application provides a single motor goes up and down and every single move adjustment mechanism and shutter. The adjusting mechanism comprises a motor, a first clutch, a second clutch, a lifting shaft, a pitching shaft, a first support, a second support and a mounting top plate. The lifting shaft is connected to a first output shaft of the motor through a first clutch, and the pitching shaft is connected to a second output shaft of the motor through a gear transmission assembly and a second clutch. The first bracket, the second bracket and the mounting top plate are used for mounting other components. The lifting shaft is provided with a lifting reel for winding a lifting adjusting rope; the pitch shaft is provided with a pitch reel for winding a pitch regulation cord. The lifting shaft and the pitching shaft are also provided with limiters for limiting the rotation range. The gear transmission assembly is in meshing transmission through non-full-tooth gears. The application provides a shutter uses above-mentioned adjustment mechanism, adjusts the lift and the every single move angle of tripe through lift adjustment rope and every single move regulation rope. This application realizes going up and down and every single move is adjusted with single motor, and simple structure is compact.

Description

Single-motor lifting and pitching adjusting mechanism and shutter

Technical Field

The application relates to the technical field of shutters, in particular to a single-motor lifting and pitching adjusting mechanism and a shutter.

Background

At present, two motors are additionally adopted in the solar louver, and the lifting and the pitching angle adjustment of the louver are respectively realized. Utility model patent like publication No. CN205876139U provides an external electronic shutter, realizes the lift and the flip function of shutter respectively through elevator motor and flip motor. The scheme is simple in design and easy to realize; but has the following disadvantages:

1. the utilization rate of the motor is low, the energy-saving and efficient spirit advocated by the state is not met, and the motor has many parts, high cost and easy failure;

2. the space utilization rate is low, and the arrangement difficulty of the shutter is increased;

3. the lifting and leaf turning process needs manual stopping of a user, and the comfort is low.

Disclosure of Invention

To overcome the above disadvantages of the prior art, the present application provides a single motor lift and pitch adjustment mechanism for achieving lift and pitch angle adjustment of the blades of a blind with a single motor, and a blind using the same.

The single-motor lifting and pitching adjusting mechanism is used for adjusting lifting and pitching angles of blades of a shutter and comprises a lifting shaft for driving a lifting adjusting rope to move so as to adjust the height of the blades; the pitch shaft is used for driving the pitch adjusting rope to move so as to adjust the pitch angle of the blade; the driving assembly comprises a motor, a first clutch and a second clutch, a first output shaft and a second output shaft are respectively arranged at two ends of the motor, and the first output shaft and the lifting shaft are respectively connected to two sides of the first clutch; the gear transmission assembly comprises a first gear and a second gear, the first gear and the second output shaft are respectively connected to two sides of the second clutch, the second gear is mounted on the pitching shaft, and the first gear is meshed with the second gear; the first bracket is sequentially provided with a first shaft hole and a second shaft hole from top to bottom, a rotating shaft of the first gear is rotatably arranged in the second shaft hole, and a rotating shaft of the second gear is rotatably arranged in the first shaft hole; the second support has set gradually third shaft hole and fourth shaft hole down from last, the pitch axis is kept away from the one end of second gear rotationally install in the third shaft hole, the lift axle is kept away from the one end of first gear rotationally install in the fourth shaft hole.

According to the technical scheme, only one motor is arranged, the motor is utilized in a time-sharing mode through the clutch, the system efficiency is improved, and the structure is more compact. The lift shaft, the pitch shaft and the like are commonly used for the louver, but the technical scheme of the application improves the efficiency, reduces the arrangement difficulty, and can also be applied to other technical fields with suspension members and needing lift and pitch adjustment, such as technical fields of well lifting buckets, amusement facilities, stage lighting equipment, test measuring devices and the like. One or more lift adjustment cords are cooperatively coupled to the suspension member for suspending and raising the suspension member, and one or more pitch adjustment cords are cooperatively coupled to the suspension member for adjusting the pitch angle of the suspension member. The first clutch and the second clutch are electromagnetic clutches. If adopt single-axis motor, need set up drive mechanism and establish the transmission with motor output shaft respectively with first clutch and second clutch and be connected, and can simplify the structure, further improve system efficiency when adopting double-axis motor.

The first support and the second support which are separately arranged are adopted, so that the arrangement of the mechanism can be simplified, the upper rail of the conventional venetian blind is omitted, namely, the function of replacing the upper rail by the lifting shaft and the pitching shaft is utilized, and the system efficiency is improved. The gear transmission pair can also be replaced by a chain wheel connection mode, a toothed belt connection mode, a worm and gear connection mode and the like. More stents may be added between the first stent and the second stent.

Preferably, the single motor lift and pitch adjustment mechanism further comprises a plurality of lift reels mounted to the lift shaft, a plurality of pitch reels mounted to the pitch shaft, the lift adjustment cord being wound around the lift reels, the pitch adjustment cord being wound around the pitch reels.

The lifting adjusting rope and the pitching adjusting rope are respectively wound on the lifting shaft and the pitching shaft, so that the lifting adjustment and the pitching angle adjustment of the shutter blade can be realized. But because the diameter of lift axle and every single move axle is limited, influence speed regulation, can make the lift adjustment rope winding number of turns too much when the high great in lift moreover, increase the design degree of difficulty and reduce operational reliability. The provision of a larger diameter heave and pitch reel allows for a greater range of adjustment, higher adjustment speeds. The number of lift and pitch reels may be set according to the size of the blind, but at least one each. Two louvers of a common size may be provided, each with a wider louver or a louver with heavier slats, for example when the slats are provided as solar panels, a plurality of louvers may be provided.

Preferably, the pitch reel is flat in shape in which upper and lower sides thereof are flat surfaces and left and right sides thereof are arc surfaces. The upper and lower sides refer to the upper and lower sides in the vertical direction, and the left and right sides refer to the sides in the direction perpendicular to the pitch axis on the horizontal plane.

The following technical effects can be achieved by arranging the pitching reel in a flat shape: connecting the pitch adjusting cord to the blades of the blind downward in the left-right direction away from both sides of the pitch reel so as to avoid interference with the lower member; the adjustment of the pitch angle is more sensitive, and the larger pitch angle adjustment can be realized only by a smaller rotating angle. The first gear and the second gear only need to be provided with partial gear teeth, and the production cost is reduced. The arc surfaces arranged on the two sides can reduce the abrasion of the pitching adjusting rope and prolong the service life of the pitching adjusting rope. The correspondence between the rotation angle of the pitch reel and the amount of change in the pitch angle of the blades is as follows: the distance of pulling up one side of the pitch adjusting rope and the distance of dropping down the other side can be calculated through the rotating angle and the width of the pitch reel; by this distance and the distance between the two pitch adjustment cord fixing points on the blade, the change in the blade pitch angle can be calculated by the tangent function.

Preferably, wherein the upper plane of the pitch reel is provided with a clamping sheet, a clamping groove is formed between the clamping sheet and the upper plane of the pitch reel for clamping the pitch adjusting rope.

The arrangement of the clamping sheet can facilitate the installation of the pitching adjusting rope. According to the aforementioned correspondence between the rotation angle of the pitch reel and the pitch angle variation amount of the blades, an appropriate width of the pitch reel can be set. When the width of the pitch reel is greater than the distance between the two pitch adjustment cord fixing points on the blades, the pitch reel need only be rotated through an acute angle to adjust the pitch angle of the blades from horizontal to vertical or near vertical. Because the rotation range of the pitching reel is smaller than one turn, the fixing can be realized by adopting a simple clamping mode without considering the condition that the pitching adjusting rope needs to be wound for multiple turns.

Preferably, the first gear, the second clutch, the motor, the first clutch, the lifting reel and the lifting shaft are connected through a coupling structure and fixed through a latch assembly; the cross section of every single move axle is the polygon, the second gear, the every single move reel matches and is provided with the polygon centre bore for wear to establish fixedly to every single move axle.

The components are connected through the coupling structure, so that the components can be designed or selected relatively independently, and the installation is convenient. The shaft coupling structure is used for connecting a first component and a second component which are positioned on two sides, and comprises a shaft hole arranged on the first component, a shaft neck arranged on the second component and a bolt assembly. The shaft hole is formed in the end face of the flange shaft at the end of the first component, and the shaft hole and the shaft neck form clearance fit. The shaft hole is provided with a first mounting hole, the shaft neck is provided with a second mounting hole in a matching mode, and the bolt assembly is inserted into the first mounting hole and the second mounting hole to form transmission connection. The first component is a first clutch or a second clutch or a lifting shaft, and the second component is a first gear or a motor or a lifting reel. The pitch shaft with the polygonal cross section can simplify connection and save a key groove structure. Only need wear to establish to the every single move axle with second gear and every single move reel, the rethread set screw with second gear and every single move reel fixed can. In order to facilitate the machining of the first mounting hole and the second mounting hole, a milling process surface can be arranged on the flange shaft and the journal, and then the process surface is drilled to form the first mounting hole and the second mounting hole.

Preferably, the bolt assembly comprises a bolt with a locking hole and a cotter pin, the bolt passes through a mounting hole on the coupling structure, and the cotter pin is mounted in the locking hole of the bolt; or, the bolt component comprises a screw which is connected with the mounting hole on the shaft coupling structure in a threaded mode.

The bolt pin with the locking hole and the split pin can be used for realizing quick installation and also are convenient to quickly disassemble during maintenance. The coupling structure can also be realized by a set screw, a second mounting hole on the shaft neck can be omitted, the first mounting hole is set to be a threaded hole for screwing in and fixing the set screw, and the structure is simple and attractive. The pin assembly is realized by adopting standard parts, and has the advantages of low price and reliable work.

Preferably, the single-motor lifting and pitching adjusting mechanism further comprises a mounting top plate, a first stopper and a second stopper, wherein the first bracket and the second bracket are respectively mounted at two ends of the mounting top plate, the first stopper and the second stopper are respectively mounted on the mounting top plate, and the first stopper corresponds to the pitching shaft and is used for limiting the rotation range of the pitching shaft; the second limiting stopper corresponds to the lifting shaft and is used for limiting the rotation range of the lifting shaft.

The first support and the second support can be directly mounted on members of a target position for mounting the blind window such as a window frame and a wall body, and can also be mounted on a mounting top plate arranged on the adjusting mechanism, so that the adjusting mechanism forms a complete independent module, and then the independent module is mounted on the target position. The former has lower cost and more flexible installation, and the latter can ensure the installation precision among components and is more suitable for adjusting mechanisms with larger sizes. The stopper is to be understood in a broad sense, and can be realized by a conventional photoelectric sensor, a mechanical or eddy current proximity switch and matched arrangement on the lifting shaft and the pitching shaft, and can also be realized by means of a rotary encoder, a current sensor and the like.

Preferably, wherein the first and second stops are proximity switches.

The proximity switch is simple in arrangement and low in cost, and can be selected preferentially. The second stopper can respectively set up one at the both ends of lift reel, sets up the heliciform slot that supplies the lift adjustment rope to twine simultaneously on the lift reel to set the form that can make a round trip to slide along the axial of lift axle with the lift reel. Such a setting has the following technical effects: the lifting adjusting rope is ensured to be wound on the lifting reel along the groove, so that the lifting speed is uniform and stable, and the lifting adjusting rope is wound in order; because the pitch adjusting rope is fixed in position in the axial direction of the pitch shaft, in the process of lifting adjustment, when the lifting adjusting rope is wound or unfolded from one side of the lifting reel to the other side, the lifting reel can slide along the lifting shaft due to the drawing action of the pitch adjusting rope, so that the distance between the lifting adjusting rope and the pitch adjusting rope in the axial direction of the lifting shaft is kept unchanged. At this moment, only need set up the gliding extreme position of second stopper at the lift reel, can trigger the second stopper through the lift reel to make PLC can control the motor stall.

Preferably, the circumferential region of the first gear has a first gear region and a first non-toothed region, the circumferential region of the second gear has a second gear region and a second non-toothed region, and the gear teeth of the first gear region and the second gear region are meshed.

Because the rotation range of the pitching shaft is limited and is less than one circle, only the non-full-tooth gear transmission is needed to be arranged, the cost can be reduced, and the mechanical limit can be arranged on the rotation of the pitching shaft.

The blind provided by the application comprises the single-motor lifting and pitching adjusting mechanism; a plurality of lift adjustment cords wound around a lift reel of the single motor lift and pitch adjustment mechanism; a plurality of pitch adjusting ropes wound around a pitch reel of the single motor lifting and pitch adjusting mechanism; the lifting adjusting rope and the pitching adjusting rope are respectively connected to the blades and are respectively used for adjusting the lifting and pitching of the blades.

The blind window adopts a conventional structure, namely comprises a plurality of blades, a rope ladder for connecting the blades and a bottom rail positioned below the blades. The upper end of the rope ladder is provided with a pitching adjusting rope which only needs to be clamped in a clamping groove arranged on the pitching adjusting wheel; when the pitching adjustment is carried out, the pitching reel drives the pitching adjusting rope to ascend at one side and descend at one side, so that the rope ladder is pulled to ascend at one side and descend at one side, and the pitching angle of the blades is adjusted. The lifting adjusting rope penetrates through a through hole formed in the blade and then is connected to the bottom rail, and when lifting adjustment is carried out, the lifting adjusting rope pulls the bottom rail to rise and sequentially folds, tightens and rises the blade from bottom to top; when descending and adjusting, the superposed blades and the bottom rail descend through the lifting adjusting rope, and the superposed blades are sequentially unfolded from top to bottom.

Preferably, the blades are solar panels, and the pitch adjusting ropes and the rope ladders are electrically connected.

The solar cell panel is matched with the automatic adjustment of the pitching angle, so that the power generation efficiency can be improved. The automatic shutter arranged on buildings such as large public buildings is very suitable to be arranged as a solar shutter, namely, the blades are arranged as solar panels. Because the lighting control of the large public building is mostly electric control and even automatically completed, and the optimal shading angle and the optimal generating angle of the shutter blades are consistent, the solar panel can be adjusted to the optimal generating angle while the lighting control is completed through a simple control mode.

The technical effects of this application lie in:

1. the single motor is used for realizing lifting and pitching adjustment, the system efficiency is high, the structure is simple and compact, the reliability is good, and the arrangement is easy;

2. the motor is automatically controlled to stop rotating through electrically adjusting the lifting and pitching angles of the blades and the limiter, so that the operation is convenient and comfortable;

3. the solar cell blades are matched with automatic pitching adjustment, so that the power generation efficiency can be improved; the optimal shading angle is consistent with the optimal power generation angle, so that the shading effect of the shutter is not influenced;

4. the adjusting mechanism is installed by using the supports positioned on the two sides, so that the installation is more flexible and convenient;

5. the adjusting mechanism has good adaptability and can be applied to other technical fields.

Drawings

The present application will now be described in further detail with reference to the accompanying drawings and detailed description:

FIG. 1 is a perspective view of a single motor heave and pitch adjustment mechanism according to a first embodiment;

FIG. 2 is a front view of the motor according to the first embodiment;

FIG. 3 is a perspective view of a first bracket and a second bracket of the first embodiment;

FIG. 4 is a perspective view of a pitch reel according to the first embodiment;

FIG. 5 is a side view of the pitch reel of the first embodiment;

FIG. 6 is a schematic view showing the connection between the lift shaft and other parts according to the first embodiment;

FIG. 7 is a schematic view of a coupling structure according to the first embodiment;

FIG. 8 is a schematic view showing the connection between the pitch axis and other components in the first embodiment;

FIG. 9 is a schematic view of a gear assembly according to the first embodiment;

FIG. 10 is a schematic view of the first and second gears of the first embodiment;

FIG. 11 is a perspective view of the blind of the second embodiment;

FIG. 12 is a schematic view showing a variation of the second embodiment;

the reference numbers illustrate:

1. the lifting mechanism comprises a lifting shaft, 2, a pitch shaft, 3, a motor, 4, a first clutch, 5, a second clutch, 6, a first gear, 7, a second gear, 8, a first bracket, 9, a second bracket, 10, a lifting reel, 11, a pitch reel, 12, a first stopper, 13, a second stopper, 14, a screw, 15, a lifting adjusting rope, 16, a pitch adjusting rope, 17, a blade, 18, a bucket, 301, a first output shaft, 302, a second output shaft, 601, a first gear area, 602, a first toothless area, 701, a second gear area, 702, a second toothless area, 703, a first center hole, 801, a first shaft hole, 802, a second shaft hole, a third shaft hole, 1102, a plane, 1102, an arc surface, 1103, a clamping sheet, 1104, a clamping groove, 1105, a second center hole, 1801, 1802, 1803 and 1803.

Detailed Description

In order to more clearly illustrate the technical solutions in the present application or the prior art, the following will describe the embodiments of the present application with reference to the accompanying drawings. For the sake of simplicity, the figures only schematically represent parts relevant to the present application and they do not represent actual components of the product, method or process flow. In addition, in order to make the drawings concise and understandable, components or modules having the same structure or function in some of the drawings are only schematically illustrated or only labeled. In this document, "one" means not only "only one" but also a case of "more than one".

It should be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. In this document, unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

The first embodiment is as follows: a single motor lift and pitch adjustment mechanism.

The single-motor lifting and pitching adjusting mechanism of the present embodiment is used for adjusting the lifting and pitching angles of the blades of the blind, and as shown in fig. 1, comprises a lifting shaft 1, a pitching shaft 2, a driving assembly composed of a motor 3, a first clutch 4 and a second clutch 5, and a gear transmission assembly composed of a first gear 6 and a second gear 7. As shown in fig. 2, the motor 3 has a first output shaft 301 and a second output shaft 302 at both ends thereof, and the first output shaft 301 and the lifting shaft 1 are connected to both sides of the first clutch 4. A first gear 6 and a second output shaft 302 are respectively connected to both sides of the second clutch 5, the second gear 7 is mounted on the pitch shaft 2, and the first gear 6 is engaged with the second gear 7.

The present embodiment further comprises a first bracket 8 and a second bracket 9. As shown in fig. 3, the first bracket 8 is provided with a first shaft hole 801 and a second shaft hole 802 in sequence from top to bottom, the rotating shaft of the first gear 6 is rotatably mounted in the second shaft hole 802, and the rotating shaft of the second gear 7 is rotatably mounted in the first shaft hole 801. The second bracket 9 is provided with a third shaft hole 901 and a fourth shaft hole 902 from top to bottom in sequence, one end of the pitching shaft 2 away from the second gear 7 is rotatably installed in the third shaft hole 901, and one end of the lifting shaft 1 away from the first gear 6 is rotatably installed in the fourth shaft hole 902 through the lifting adjusting wheel on the side.

In the embodiment, the first clutch 4 and the second clutch 5 arranged on two sides of the motor 3 form a driving assembly, and the first clutch 4 and the second clutch 5 both adopt electromagnetic clutches and have two transmission states of an engaged state and a disengaged state, so that the time-sharing utilization of the output power of the motor can be realized. The motor can adopt a stepping motor or a servo motor and is controlled by a motor controller or a universal PLC controller. When the blades of the blind window need to be lifted and adjusted, the first clutch 4 can be switched to the connection state through the PLC, the second clutch 5 can be switched to the separation state, the motor 3 is controlled to rotate forwards or backwards at a high rotating speed, the lifting shaft 1 can be driven to rotate, and the lifting shaft 1 further drives the lifting adjusting rope of the blind window to adjust the lifting of the blades. When the pitch angle of the blades needs to be adjusted, the first clutch 4 can be switched to a separation state through the PLC, the second clutch 5 is switched to a connection state, the motor 3 is controlled to rotate forwards or backwards at a slow rotating speed, the pitch shaft 2 can be driven to rotate through the second clutch 5, the first gear 6 and the second gear 7, and the pitch shaft 2 further drives the pitch adjusting rope of the shutter to adjust the pitch angle of the blades. The lifting range and the pitch angle adjusting range of the blade can be controlled by controlling the rotation angle of the stepping motor or the servo motor.

The present embodiment further includes two heave reels 10 for winding the blind heave adjustment cord mounted to the heave shaft 1, and two pitch reels 11 for winding the blind pitch adjustment cord mounted to the pitch shaft 2.

Two heave reels 10 and two pitch reels 11 are provided as a typical configuration. When the width of the blind is large, more lift reels 10 and pitch reels 11 may be provided. The heave and pitch reels 10, 11 can be fixed to the heave and pitch shafts 1, 2 by set screws, respectively, or can be mounted using key slots and retaining rings.

As shown in fig. 4 and 5, the upper and lower sides of the pitching reel 11 are flat surfaces 1101, the left and right sides are arc surfaces 1102, the upper flat surface 1101 is provided with a clamping piece 1103, and a clamping groove 1104 is formed between the clamping piece 1103 and the upper flat surface 1101 for clamping the pitching adjusting cords of the blind.

The planes on the upper and lower sides and the arc surfaces on the left and right sides make the pitch reel 11 in a flat drum shape, so that the pitch reel 11 can complete the pitch angle adjustment of the blades only by rotating a small angle. Due to the fact that cost and weight are considered, the diameter of the pitching shaft 2 is small, if the pitching adjusting rope is directly wound on the pitching shaft 2, the pitching angle of the blade can be adjusted only by winding the pitching adjusting rope for multiple circles, control difficulty is increased, and adjustment is not sensitive enough. Since the pitch reel 11 does not need to wind the pitch regulation cord several times during pitch regulation, it is only necessary to provide one catching groove 1104 on the plane 1101 on the upper side of the pitch reel 11, and the pitch reel 11 also needs to be provided with a small size in the axial direction. Since the load to which the pitch reel 11 is subjected is small in practical use, it can be implemented by a plastic member. The latch groove 1104 may be implemented by a latch tab 1103 integrally molded on the plane 1101. Specifically, the groove width of the clamping groove 1104 is designed to be slightly smaller than the diameter of the pitch adjusting rope, and the elasticity of the plastic clamping sheet 1103 is utilized to enable the pitch adjusting rope to be clamped into the clamping groove 1104 and fixed. The number of the snap grooves 1104 may be 1, or may be two or more in the left-right direction. The pitching adjusting rope can be fixed by adopting a fastening piece pressing mode, but the clamping connection mode has the advantages of simple structure, convenience in manufacturing and convenience in installation and maintenance.

As shown in fig. 6, the first gear 6, the second clutch 5, the motor 3, the first clutch 4, the lift reel 10, and the lift shaft 1 are coupled by a coupling structure and fixed by a latch assembly.

When the parts are connected through the coupling structure and the bolt assembly, the parts can be relatively independent, and can be packaged and transported independently and assembled quickly on the installation site. Meanwhile, the same coupling structure is adopted, so that the production and the processing are simpler, the types of parts can be reduced, and the cost is reduced. Of course, the components can be realized in a key groove connection mode, a flange connection mode, a threaded connection mode and the like, can be detachably connected and can be selected according to specific application scenes.

As shown in fig. 7, the latch assembly includes a screw 14, and the screw 14 is threadedly coupled to the mounting hole of the coupling structure. The bolt assembly may also be comprised of a peg with a locking hole that passes through a mounting hole in the coupling structure and a cotter pin that is mounted in the locking hole of the peg.

The screw 14 may be selected from conventional screws, set screws, and the like. When a normal screw is used, as shown in fig. 7, shaft holes are coaxially provided in the input and output shafts of the first clutch 4, and the size thereof is matched with a journal provided on the lifting reel 10. A technical face parallel to the axial direction is machined on the input shaft and the output shaft through milling, a first mounting hole for the screw 14 to penetrate through is machined on the technical face, and a threaded hole is formed in one side of the first mounting hole. The shaft neck of the lifting reel 10 is provided with a second mounting hole for the screw 14 to pass through, forming a coupling structure. During actual installation, the screw 14 is screwed into the two mounting holes to complete connection. When the set screw is adopted, only a threaded hole which is only communicated to the shaft hole from one side is arranged on the input shaft and the output shaft of the first clutch 4, and when the set screw is actually installed, the set screw is screwed into the threaded hole and tightly pushes the shaft neck of the lifting reel 10 to complete connection. It is of course also possible to retain the technical surface on the journal of the lifting reel 10 against which the set screw bears, and to transmit a higher torque.

As shown in fig. 8, the cross section of the pitch shaft 2 is a regular pentagon. As shown in fig. 4 and 10, the second gear 7 and the pitch reel 11 are respectively provided with a first center hole 703 and a second center hole 1105 matching and having a regular pentagon shape for being fixed to the pitch shaft 2 by penetration.

In practical use, the load of the pitch shaft 2 is small, so that the transmission connection can be realized by arranging the cross section of the pitch shaft to be polygonal and then sleeving and fixing the second gear 7 and the pitch reel 11. The second gear 7, the pitch reel 11 and the pitch shaft 2 are all made of polymer material by injection molding, and thus can be easily processed into the above-mentioned shape. The pitch shaft 2 can also be made into a section by extrusion molding of light metal and can be easily processed into a polygonal section. The second gear 7 and the pitch reel 11 can be fixed by snap fit, screw fixation or by adhesive fixation, only with consideration given to the fixation in the axial direction thereof, and torque transmission is achieved only by the cooperation of the cross sections.

As shown in fig. 1, the present embodiment further includes a top mounting plate (not shown), a first stopper 12, and a second stopper 13. The first support 8 and the second support 9 are respectively installed at two ends of the installation top plate, and the first stopper 12 and the second stopper 13 are also respectively installed at the installation top plate. The first limiting stopper 12 corresponds to the pitch shaft 2 and is used for limiting the rotation range of the pitch shaft 2; the second stopper 13 corresponds to the elevation shaft 1, and is used for limiting the rotation range of the elevation shaft 1. The first stopper 12 and the second stopper 13 employ proximity switches.

The first stoppers 12 may be disposed at both ends of the first gear 6 or the second gear 7 in the axial direction or both sides in the circumferential direction, while a projection protruding from the end surface or a circumferential outer ring is disposed on the first gear 6 or the second gear 7. Elements such as a correlation type photoelectric sensor, a mirror reflection type or diffuse reflection type photoelectric sensor, a mechanical proximity switch or an eddy current proximity switch, a Hall sensor and the like can be adopted and connected to the PLC; meanwhile, the first clutch 4, the second clutch 5 and the motor 3 are all connected to the PLC. Through the lug shelters from or reflects photoelectric sensor's light, or triggers mechanical proximity switch, triggers vortex proximity switch or hall sensor, the PLC controller can control motor 3 stall, then breaks off second clutch 5, accomplishes the spacing of every single move angle. Can be used for automatically adjusting the pitch angle or preventing the pitch reel from excessively rotating, so that the blades of the shutter are excessively overturned or even damaged. The second stopper 13 may be provided at both ends or both sides of the lifting reel 10, while a projection is provided on the flange of the lifting reel 10, and through the sensor setting similar to the first stopper 12, the PLC controller can obtain the number of revolutions and the direction of the lifting reel 10 according to the number of times of the feedback signal of the sensor and the direction of rotation of the motor 3, thereby calculating the lifting height of the lift adjusting rope. The second stopper 13 may also be implemented by a rotary encoder provided at the lifting shaft 1, the first clutch 4, the lifting reel 10, etc., and calculates the lifting height of the lift adjusting rope from an output signal of the rotary encoder, and controls the rotation or stoppage of the motor 3 and the engagement or disengagement of the first clutch 4 accordingly. When the motor 3 is a servo motor and has a control device such as a rotary encoder and a current loop, it can be regarded as the second stopper 13 to control the lifting position.

As shown in fig. 9 and 10, the circumferential region of the first gear 6 has a first gear region 601 and a first non-toothed region 602, and the circumferential region of the second gear 7 has a second gear region 701 and a second non-toothed region 702, and the first gear region 601 and the second gear region 701 mesh with each other. The ranges of the first gear zone 601 and the second gear zone 701 are determined according to the range of the rotation angle of the pitch reel 11, and not only can the function of pitch angle adjustment be achieved at a low cost, but also a mechanical limit function can be provided for the rotation range of the pitch shaft 2 and the pitch reel 11.

Wherein mechanical stops can be divided into two cases. When the outer diameters of the first gear area 601 and the first non-toothed area 602 are the same, and the outer diameters of the second gear area 701 and the second non-toothed area 702 are also the same, the first gear 6 and the second gear 7 can only rotate in the meshing area, if the first gear 6 intends to drive the second gear 7 to continue to rotate when rotating to the end of the meshing area due to a failure of the first stopper 12, etc., the first non-toothed area 602 and the second non-toothed area 702 interfere with each other to be jammed, so that the second clutch 5 slips or the motor 3 is locked. The arrangement is suitable for the application scenario that the strength of relevant parts is enough, and a PLC controller or a motor controller is provided with torque control. When the outer diameter of the first toothless zone 602 is smaller than the root circle diameter of the first gear zone 601, another situation occurs, namely, the intermittent transmission mechanism is formed: when the gear pair continues to rotate after rotating to the end of the meshing zone, the gear pair loses meshing due to the fact that the circumferential portion of the first gear 6 enters the first toothless zone 602, and the first toothless zone 602, the second gear zone 701 and the second toothless zone 702 do not interfere with each other, so that the second gear 7 stops rotating, and the pitch adjusting shaft 2 and the pitch reels 11 are mechanically limited in rotation range to a certain extent. The angular extent of the second gear region 701 should now be set to be greater than the angular extent of the first gear region 601 to ensure that the first gear 6 will re-engage when the gear pair is disengaged and the first gear 6 is rotated back. If the angular ranges of the first gear area 601 and the second gear area 701 are the same, then the two cases are divided again: when the outer diameter of the second toothless zone 702 is the same as the outer diameter of the first toothless zone 602, that is, the outer diameter of the second toothless zone is smaller than the diameter of the root circle of the second gear zone 701, the first gear 6 can idle without meshing when rotating back, and the meshing can be realized again only by manual interference after the machine is stopped; when the outer diameter of the second toothless area 702 is the same as the outer diameter of the second gear area 701, interference between the first gear area 601 and the second toothless area 702 and jamming of the first gear 6 can be caused when the first gear rotates back, and manual interference is required after the machine is stopped to realize meshing again.

In addition, the first gear 6 and the second gear 7 can also be provided as gears with different sizes, for example, the first gear 6 adopts a small gear, and the second gear 7 adopts a large gear, and the configuration can realize more accurate pitch angle adjustment: the first gear 6 rotates through a large angle even a plurality of turns, and the second gear 7 correspondingly rotates through a small angle. The first gear 6 can then be provided as a partly toothed gear or as a fully toothed gear, as required. In the same way, the first gear 6 can be changed into a worm, the second gear 7 can be changed into a turbine which is arranged in a matched mode, the accurate pitching angle adjustment can be achieved through the high transmission ratio, and the method and the device are suitable for application scenes with corresponding accurate adjustment requirements or application scenes in which the motor 3 can only run at a single rotating speed. Other transmission modes such as chain wheel and chain transmission, toothed belt transmission and the like can also be selected according to specific application scenes.

Example two: a blind window.

As shown in fig. 11, the present embodiment includes the single-motor pitch and heave adjustment mechanism of the first embodiment, and two pitch adjustment cords 16 wound around the two lift reels 10, and two pitch adjustment cords 16 engaged in the engaging grooves 1104 of the two pitch reels 11; and a plurality of vanes 17. The elevation adjustment cord 15 and the pitch adjustment cord 16 are connected to the blades 17, respectively, for adjusting elevation and pitch angles of the blades 17.

Specifically, the blade 17 can be adjusted in elevation and in pitch in two modes, namely a one-key adjustment mode and a jog adjustment mode, and the user control panel can be provided with one-key elevation adjustment keys, one-key descent adjustment keys, one-key forward pitch adjustment keys and one-key backward pitch adjustment keys, and can also be provided with corresponding jog keys, corresponding fast adjustment keys, slow adjustment keys and other function keys. For example, after a user operates a one-key ascending key, the PLC controls the first clutch 4 to be connected and the second clutch 5 to be disconnected, controls the motor 3 to rotate in the direction corresponding to ascending adjustment, drives the lifting shaft 1 and the lifting reel 10 to rotate through the first clutch 4, and further drives the lifting adjusting rope 15 to pull the blade 17 to ascend; meanwhile, the PLC controller detects an input signal of the second stopper 13 in real time. When the PLC judges that the shutter is lifted in place according to the detected signal, the motor 3 can be controlled to stop rotating, and the automatic lifting process is completed. If the user presses the slow-motion-to-rise key, the PLC controller controls the motor 3 to rotate in the direction corresponding to the rise adjustment continuously until the PLC detects that the user releases the key or the blind window rises in place, as long as the user does not release the key and the PLC determines that the blind window does not rise in place according to the detected input signal of the second stopper 13. The control method for the other adjustment modes is similar.

The heave and pitch adjustment of the blades 17 may also set a fully automatic adjustment mode. For example, the blind window is intelligently adjusted according to an adjusting strategy preset by a user, or according to the information such as season and time, illumination intensity, temperature and humidity of a room, even weather forecast and the like acquired through a home network.

As a variation of this embodiment, the blades 17 may be provided as solar panels, and the pitch adjustment cord 16 and the cord ladder connecting the plurality of blades 17 are also used for electrical connection. Through the pitching angle of the automatic control solar cell panel, not only can the sunlight be effectively sheltered, but also the generating efficiency of the solar cell panel can be improved. In practical application, the motor 3, the first clutch 4 and the second clutch 5 can be controlled by a PLC (programmable logic controller) or an intelligent household controller in other forms, the automatic adjustment of the lifting and pitching angles of the blades 17 can be realized by combining the first limiting stopper 12 and the second limiting stopper 13, and the intelligent control of the shutter can be realized by a home network and an intelligent terminal.

As a variation of this embodiment, the single-motor pitch and heave adjustment mechanism of the first embodiment may also be applied to other technical fields. For example, referring to fig. 12, the lift adjustment cord 15 and the pitch adjustment cord 16 may be connected to a boom 1802 and a bucket body 1801, respectively, of a bucket 18 for a mine, the boom 1802 being hinged to both sides of the bucket body 1801 at a position where an axis 1803 is hinged higher than the center of gravity of the bucket body 1801. Hoist line 15 is attached to boom 1802 and pitch adjustment line 16 is attached to the outer wall of barrel 1801 at a location below the center of gravity of barrel 1801 and away from hinge axis 1803. At this time, the first gear 6 and the second gear 7 may be omitted, and the pitch shaft 2 and the heave shaft 1 may be coaxially disposed. When the bucket 18 needs to be lifted, the PLC controls the first clutch 4 and the second clutch 5 to be simultaneously engaged, and the pitch adjusting rope 16 and the lifting winding rope 15 are arranged in the same winding direction, so that the lifting of the bucket 18 can be adjusted. When the barrel body 1801 needs to be dumped or the dumping is completed and needs to be reset, only the second clutch 5 needs to be engaged, and the posture of the barrel body 1801 can be adjusted through the pitching adjusting rope 16.

When the barrel body 1801 is in a frame shape, a long groove shape or other shapes, a plurality of lifting ropes 15 and pitching adjusting ropes 16 can be arranged, and the lifting shaft 1 and the pitching shaft 2 also can be arranged coaxially. With similar thinking can also be with the single motor lift that this application provided and every single move adjustment mechanism uses other application scenes, for example the amusement facilities that need adjust lift and every single move, stage lighting equipment for technical field such as the lighting equipment of the high-speed camera shooting of car bump test, the irradiation equipment that is used for car sunshine simulation can bring compact structure efficient technological effect equally.

The foregoing is only a preferred embodiment of the present application and the technical principles employed, and various obvious changes, rearrangements and substitutions may be made without departing from the spirit of the application. Other advantages and effects of the present application will be readily apparent to those skilled in the art from the disclosure herein. The present application is capable of other and different embodiments and its several details are capable of modifications and variations in various respects, all without departing from the spirit of the present application. The features in the above embodiments and embodiments may be combined with each other without conflict.

Claims (10)

1. A single motor tilt and pitch adjustment mechanism for adjusting the tilt and pitch angles of the blades of a blind, comprising:

the lifting shaft is used for driving the lifting adjusting rope to move so as to adjust the height of the blade;

the pitch shaft is used for driving the pitch adjusting rope to move so as to adjust the pitch angle of the blade;

the driving assembly comprises a motor, a first clutch and a second clutch, a first output shaft and a second output shaft are respectively arranged at two ends of the motor, and the first output shaft and the lifting shaft are respectively connected to two sides of the first clutch;

the gear transmission assembly comprises a first gear and a second gear, the first gear and the second output shaft are respectively connected to two sides of the second clutch, the second gear is mounted on the pitching shaft, and the first gear is meshed with the second gear;

the first bracket is sequentially provided with a first shaft hole and a second shaft hole from top to bottom, a rotating shaft of the first gear is rotatably arranged in the second shaft hole, and a rotating shaft of the second gear is rotatably arranged in the first shaft hole;

the second support has set gradually third shaft hole and fourth shaft hole down from last, the pitch axis is kept away from the one end of second gear rotationally install in the third shaft hole, the lift axle is kept away from the one end of first gear rotationally install in the fourth shaft hole.

2. The single motor lift and pitch adjustment mechanism of claim 1 further comprising a plurality of lift reels mounted to said lift shaft, a plurality of pitch reels mounted to said pitch shaft, said lift adjustment cord being wound around said lift reels, said pitch adjustment cord being wound around said pitch reels.

3. The single motor lift and pitch adjustment mechanism of claim 2 wherein the pitch reel is planar on both the top and bottom sides and arcuate on both the left and right sides.

4. The single motor lift and pitch adjustment mechanism of claim 3 wherein the upper planar surface of the pitch reel is provided with a snap tab, the snap tab forming a snap groove with the upper planar surface of the pitch reel for snap engagement of the pitch adjustment cord.

5. The single motor pitch and roll adjustment mechanism of claim 2, wherein the first gear, the second clutch, the motor, the first clutch, the lift reel, and the lift shaft, which are connected in series, are connected by a coupling structure and fixed by a latch assembly; the cross section of every single move axle is the polygon, the second gear, the every single move reel matches and is provided with the polygon centre bore for wear to establish fixedly to every single move axle.

6. The single motor lift and pitch adjustment mechanism of claim 5 wherein said latch assembly comprises a peg with a locking hole and a cotter pin, said peg passing through a mounting hole in said coupling structure, said cotter pin being mounted in said locking hole of said peg;

or, the bolt component comprises a screw which is connected with the mounting hole on the shaft coupling structure in a threaded mode.

7. The single-motor lift and pitch adjustment mechanism of claim 1, further comprising a mounting top plate, a first stop and a second stop, wherein the first bracket and the second bracket are respectively mounted at two ends of the mounting top plate, the first stop and the second stop are respectively mounted at the mounting top plate, the first stop corresponds to the pitch axis for limiting a rotation range of the pitch axis; the second limiting stopper corresponds to the lifting shaft and is used for limiting the rotation range of the lifting shaft.

8. The single motor lift and pitch adjustment mechanism of claim 7 wherein said first stop and said second stop are proximity switches.

9. The single motor lift and pitch adjustment mechanism of any one of claims 1 to 8 wherein the circumferential region of the first gear has a first gear region and a first non-toothed region and the circumferential region of the second gear has a second gear region and a second non-toothed region, the gear teeth of the first gear region and the second gear region being in mesh.

10. A blind, comprising:

the single motor heave and pitch adjustment mechanism of any one of claims 1-9;

a plurality of lift adjustment cords wound around a lift reel of the single motor lift and pitch adjustment mechanism;

a plurality of pitch adjusting ropes wound around a pitch reel of the single motor lifting and pitch adjusting mechanism;

the lifting adjusting rope and the pitching adjusting rope are respectively connected to the blades and are respectively used for adjusting lifting and pitching angles of the blades.

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