CN111891959A - Decelerator and manual-automatic intelligent smoke exhaust system - Google Patents

Abstract

The invention discloses a speed reducer and a manual-automatic integrated intelligent smoke exhaust system. The speed reduction device comprises a speed reduction wall, a speed reduction wear-resistant sheet and a speed reduction mechanism. The decelerating wall has a hollow portion. The deceleration wear-resistant pieces are arranged on the inner side of the deceleration wall. The speed reduction mechanism is provided in a hollow portion of the speed reduction wall. The speed reducing mechanism comprises a rotating body and at least two speed reducing blocks. The rotating body is rotatable with respect to the decelerating wall. The at least two deceleration blocks are disposed around the rotating body and slidably coupled to the rotating body. Wherein the at least two deceleration blocks are capable of contacting the deceleration wearpads. The speed reducing mechanism in the manual-automatic integrated intelligent smoke exhaust system can adapt to the movement speed of the handle to reduce the rotation speed of the containing wheel.

Description

Decelerator and manual-automatic intelligent smoke exhaust system

Technical Field

The invention relates to the field of speed reduction, in particular to a speed reduction device in a manual-automatic integrated intelligent smoke exhaust system.

Background

Existing reduction units typically include a moving part and a reduction block. When the moving part needs to be decelerated, the deceleration block is moved towards the moving part and contacts the moving part, so that the moving part is decelerated. However, when the moving member rotates at a high speed and contacts the speed reduction block, the speed of the moving member may be rapidly reduced, and the speed of the moving member may not be reduced according to the existing speed of the moving member.

Therefore, the conventional speed reduction device needs to be further improved, and can automatically reduce the speed of the moving component according to the current moving speed of the moving component.

Disclosure of Invention

To achieve the above object, the present invention provides a deceleration device including a deceleration wear pad and a deceleration mechanism. The decelerating wear-resistant piece has a hollow portion. The speed reduction mechanism is provided in a hollow portion of the speed reduction wear plate. The speed reducing mechanism comprises a rotating body and at least two speed reducing blocks. The rotating body is rotatable relative to the decelerating wear plates. The at least two deceleration blocks are disposed around the rotating body and slidably coupled to the rotating body. Wherein the at least two deceleration blocks are capable of contacting the deceleration wearpads.

Further, the at least two deceleration blocks are configured to: the at least two deceleration blocks are capable of contacting the deceleration wearpads when the at least two deceleration blocks are away from the rotating body.

Further, the rotating body has a rotation axis about which the rotating body and the at least two deceleration blocks can rotate. Each of the at least two deceleration blocks slides relative to the rotating body in a radial direction of the rotating body, wherein the radial direction is perpendicular to the axis of rotation.

Further, the deceleration mechanism further includes at least two guide members, each of which is arranged in a radial direction of the rotating body and provided corresponding to a corresponding one of the at least two deceleration blocks. The rotating body is provided with a first guide piece accommodating hole, the rotating body is provided with a second guide piece accommodating hole, one end of each of the at least two guide pieces is accommodated in the first guide piece accommodating hole, and the other end of each of the at least two guide pieces is accommodated in the second guide piece accommodating hole.

Further, the rotating body is a cylinder, each of the at least two speed reduction blocks is a sector cylinder, the first guide piece accommodating hole is formed in the inner side wall of the sector cylinder, and the second guide piece accommodating hole is formed in the outer side wall of the rotating body.

Further, the deceleration mechanism further comprises a deceleration elastic member which is arranged around the at least two deceleration blocks and can apply a force to the at least two deceleration blocks toward the rotating body.

Further, the decelerating elastic member is annular, and an outer side wall of each of the at least two decelerating blocks is provided with an elastic body accommodating portion for accommodating at least a part of the decelerating elastic member.

Further, the at least two deceleration blocks are made of metal and the deceleration wear pads are made of non-metal.

The application also provides a manual-automatic intelligent smoke exhaust system, which comprises the speed reducing device.

Further, the reduction gear further comprises a transmission gear, and the transmission gear is connected with the rotating main body and can rotate together with the rotating main body. The manual-automatic intelligent smoke exhaust system further comprises an accommodating wheel and at least one planetary gear. The storage wheel is provided with an inner gear ring. Each of the at least one planetary gear is disposed around the rotating body, and each of the at least one planetary gear is engaged with the transmission gear and the inner gear of the receiving wheel.

The speed reducing mechanism in the manual-automatic integrated intelligent smoke exhaust system can adapt to the movement speed of the handle to reduce the rotation speed of the containing wheel. In other words, when the rotation speed of the storage wheel is slow, the speed reduction mechanism does not reduce the speed of the storage wheel. When the rotational speed of handle is faster, the receiving wheel is slowed down to the reduction gears to the rotational speed when receiving the wheel is faster, and four speed reduction piece support the power of speed reduction wear pad more greatly, and the friction that the speed reduction wear pad produced to it is also bigger. Accordingly, the greater the degree of deceleration of the storage wheels by the deceleration mechanism.

The conception, the specific structure and the technical effects of the present invention will be further described with reference to the accompanying drawings to fully understand the objects, the features and the effects of the present invention.

Drawings

FIG. 1 is a schematic view of a fume extractor of the present invention;

FIG. 2 is a perspective view of the cord control device of the present invention;

FIG. 3 is an exploded view of the cord control apparatus of the present invention;

FIG. 4 is a front view of the cord control device of the present invention;

FIG. 5 is a cross-sectional view of the cord control device of the present invention taken along line A-A of FIG. 4;

FIG. 6 is a schematic view of the cord control apparatus of the present invention;

FIG. 7 is an exploded view of the stowing wheel of the invention;

FIG. 8 is a partial cross-sectional view of the stowing wheel of the invention;

FIG. 9 is a front view of the planetary mechanism of the present invention;

FIG. 10 is a perspective view of the speed reduction mechanism of the present invention;

FIG. 11 is an exploded view of the speed reducing mechanism of the present invention;

FIG. 12 is a state diagram of the reduction mechanism of the present invention rotating at a low speed;

FIG. 13 is a state diagram of the reduction mechanism of the present invention rotating at a high speed;

FIG. 14 is a front elevational view of the spacing device of the present invention;

figure 15 is an exploded view of the spacing device of the present invention.

The reference numbers illustrate: building 1, fixed window frame 2, movable window 3, handle 4, rope 5, base 10, base cavity 11, first cover 21, second cover 22, third cover 23, receiving wheel 40, receiving wheel body 41, external gear 42, rope accommodating part 43, internal gear 44, receiving wheel cavity 45, first pin hole 46, partition plate 47, speed reduction device 50, speed reduction mechanism 51, planetary mechanism 52, rotating part 53, speed reduction component 54, speed reduction wear-resistant sheet 55, limiting device 60, limiting seat 61, limiting part 63, first elastic part 64, reset rod 67, limiting linkage rod 68, second elastic part 69, motor main body 71, output rod 72, pressing part 73, starting rod 74, third elastic part 75, hole 76, starting linkage rod 81, speed reduction wall 111, first tooth surface 112, second tooth surface 113, shaft 202, speed reduction block 511, second accommodating hole 403, pin 412, shaft sleeve 414, second pin hole 415, shaft sleeve 414, and rope accommodating part, The first hollow end 416, the second hollow end 417, the rotating body 501, the rotating rod 502, the transmission gear 503, the second guide receiving hole 504, the speed reduction block 511, the elastic body receiving part 512, the first guide receiving hole 513, the outer side wall 514, the inner side wall 515, the guide 521, the speed reduction elastic member 531, the holder 610, the first planetary gear 611, the second planetary gear 612, the through hole 613, the first rotating shaft 621, the second rotating shaft 622, the coupling member 811, and the snap-in portion 812.

Detailed Description

The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, and the type, quantity and proportion of the components in actual implementation may be changed freely, and the layout of the components may be more complicated.

Embodiments of the present invention are described below with reference to the drawings. In the following drawings, like reference numerals are used for like parts. Although embodiments are described herein using terms indicating directions, such as "upper", "lower", etc., these terms are used herein for convenience of description only and are to be determined based on exemplary orientations shown in the drawings. Because the disclosed embodiments of the invention can be arranged in a variety of orientations, these directional terms are used for purposes of illustration only and are not to be construed as limiting.

Ordinal terms such as "first," "second," etc., used in this application are used merely for distinction and identification, and do not have any other meaning, unless otherwise specified, that does not denote a particular order or importance. For example, the term "first cover" does not itself imply the presence of "second cover", nor does the term "second cover" itself imply the presence of "first cover".

As shown in fig. 1, a building 1 is provided with an integrated manual-automatic intelligent smoke exhaust system. The manual-automatic intelligent smoke exhaust system comprises a smoke exhaust device and a rope control device. Specifically, the upper part of the side wall of the building 1 is provided with a window opening for arranging a smoke exhaust device. The smoke evacuation device comprises a fixed sash 2 and a movable window 3. The fixed window frame 2 is arranged in the window opening and fixedly connected with the side wall. The movable window 3 is provided in the fixed window frame 2 and is movable relative to the fixed window frame 2. The movable window 3 has a closed position and an open position. When the movable window 3 is located at the closed position, the movable window 3 is flush with the fixed window frame 2, so that the inner and outer spaces (i.e., indoor and outdoor) of the side wall of the building 1 are not communicated through the window opening. When the movable window 3 is located at the open position, the movable window 3 and the fixed window frame 2 are arranged at an angle, so that an opening is formed between the movable window 3 and the fixed window frame 2, and the inner space and the outer space of the side wall of the building 1 can be communicated through the opening.

As shown in fig. 1, the side wall of the building 1 is provided with a rope control device for receiving and controlling the ropes 5. The rope 5 is configured to: when the cord 5 is tightened, the movable window 3 can move from the open position to the closed position; when the cord 5 is released, the movable window 3 can move from the closed position to the open position. In this application, the spindle (not shown) of the handle 4 can be inserted into the second end hollow 417 (see fig. 2) of the cord control device. When the user turns the handle 4, the rope control means can release or tighten the rope 5. It will be appreciated by those skilled in the art that the rope 5 of the present invention may be a steel wire rope or the like.

As shown in fig. 2 to 6, the rope control device of the present invention includes a base 10, a receiving wheel 40, a speed reduction device, a speed reduction wear piece 55, a limit device, a start device, a first cover 21, a second cover 22, and a third cover 23. The base 10 is used for carrying the containing wheel 40, the speed reducing device, the speed reducing wear-resistant piece 55, the limiting device 60 and the starting device. The first cover 21, the second cover 22, and the third cover 23 cover the base 10 to protect the components accommodated in the base 10. The storage wheel 40 is used to store the rope 5 and can control the release or tightening of the rope 5. The reduction gear is provided between the base 10 and the storage wheel 40 to adjust the rotation speed of the storage wheel 40. The stopper 60 is used to limit the storage wheel 40. The stop 60 has a first position and a second position. When the position limiting device 60 is located at the first position, the receiving wheel 40 can only rotate in the clockwise direction. When the position limiting device 60 is located at the second position, the receiving wheel 40 can rotate in the clockwise direction or in the counterclockwise direction. The actuating means is used to control the movement of the stop means 60 from the first position to the second position.

The specific structure of the components of the cord control device of the present invention is described below in conjunction with fig. 2-15:

as shown in fig. 2-6, the base 10 defines a base receptacle 11. The upper part of the base receptacle 11 is substantially circular and the lower part is substantially rectangular, the upper circular part having a central axis X. Base housing 11 is configured to house receiving wheel 40 and reduction gear 50. A decelerating wall 111 is arranged in the base accommodating cavity 11. The decelerating wall 111 is substantially a circular ring, which is arranged coaxially with the circular volume of the upper part of the base volume 11. That is, the decelerating wall 111 also has a central axis X. The deceleration wall 111 has a hollow portion for accommodating the deceleration mechanism 51 and the deceleration wear pieces 55. The deceleration wear pieces 55 and the deceleration mechanism 51 form a deceleration device.

As shown in fig. 2 to 8, the receiving wheel 40 includes a receiving wheel body 41, a sleeve 414, and a pin 412. The storage wheel body 41 is substantially cylindrical and has a storage wheel axis. When the stowing wheel 40 is fitted in position with the base 10, the stowing wheel axis is disposed coaxially with the central axis X. The storage wheel body 41 is provided with a string accommodating portion 43 on a circumferential side wall thereof, which is formed by recessing from the circumferential side wall of the storage wheel body 41 toward the storage wheel axis. The string accommodating portion 43 accommodates the string 5. The receiving wheel body 41 is provided with a first pin hole 46 on a circumferential side wall thereof for receiving the pin 412. The left end of the circumferential side wall of the storage wheel body 41 is provided with an outer ring gear 42. The outer ring gear 42 is configured such that the left portion of the receiving wheel body 41 forms a ratchet wheel, and the ratchet wheel can be engaged with the stopper 63 in the stopper device 60. More specifically, each tooth in the outer ring gear 42 has a first tooth face 112 and a second tooth face 113. The first tooth surface 112 extends substantially in the radial direction of the receiving wheel body 41. The second tooth face 113 is arranged at an acute angle to the free end of the first tooth face 112, and the second tooth face 113 is located downstream of the first tooth face 112 in the clockwise direction. The stop 60 has a first position and a second position. When the limiting device 60 is located at the first position, the free end of the limiting member 63 contacts the outer ring gear 42, so that the receiving wheel 40 can only rotate in the clockwise direction around the central axis X. When the limiting device 60 is located at the second position, the limiting member 63 does not contact the outer ring gear 42, so that the receiving wheel 40 can rotate in the clockwise direction or the counterclockwise direction about the central axis X.

It is noted that, in the example of the present invention, when the storage wheel 40 rotates in the clockwise direction about the central axis X, the string 5 is tightened, and when the storage wheel 40 rotates in the counterclockwise direction about the central axis X, the string 5 is released.

As shown in fig. 2-8, the collector wheel pocket 45 extends through the collector wheel body 41 along the collector wheel axis. A vertically arranged partition plate 47 is arranged in the containing wheel cavity 45 to divide the containing wheel cavity 45 into a left part and a right part. The left portion of the collector wheel receptacle 45 is for receiving the planetary mechanism 52. The partition plate 47 has a through hole disposed coaxially with the receiving wheel axis for receiving the boss 414. The left end of the sidewall of the receiving wheel cavity 45 is provided with an inner gear ring 44 for meshing with the first planetary gear 611 and the second planetary gear 612 of the planetary mechanism 52. The sleeve 414 is generally cylindrical and is disposed in the wheel well 45 coaxially with the wheel body 41. Both ends of the sleeve 414 have hollow portions depressed inward, respectively. Wherein the first end hollow 416 is adapted to receive the turning rod 502 and the second end hollow 417 is adapted to receive a turning shaft (not shown) of the handle 4. The sleeve 414 has a second pin hole 415 extending vertically therethrough for receiving the pin 412. After the sleeve 414 passes through the through hole in the partition plate 47, the pin 412 passes through the first pin hole 46 and the second pin hole 415 to hold the pin 412 in place. As the hub 414 rotates, the receiving wheel 40 also rotates. In other words, rotation of the handle 4 can rotate the storage wheel 40.

As shown in fig. 9, the planetary mechanism 52 is accommodated in the left portion of the receiving wheel housing 45. The planetary mechanism 52 includes a carrier 610, and two planetary gears (i.e., a first planetary gear 611 and a second planetary gear 612). The first planetary gear 611 and the second planetary gear 612 are disposed on the same side of the carrier 610, and are connected with the carrier 610. The carrier 610 is provided with a through hole 613 so that the transmission gear 503 in the speed reducing mechanism 51 can mesh with the first planetary gear 611 and the second planetary gear 612 after passing through the through hole 613 from the rear side of the carrier 610. Further, the first planetary gears 611 and the second planetary gears 612 are also meshed with the ring gear 44 in the storage wheel 40.

As shown in fig. 2 to 13, the reduction device includes a reduction mechanism 51 accommodated in a housing (i.e., a hollow portion) surrounded by a reduction wall 111. The decelerating wear plates 55 are substantially annular. Which is provided in the hollow portion and abuts against the decelerating wall 111. The deceleration wear pieces 55 are disposed coaxially with the deceleration wall 111. The speed reducing mechanism 51 includes a rotating member 53 and a speed reducing assembly 54. The rotating member 53 includes a rotating body 501, a rotating lever 502, and a transmission gear 503. Wherein the rotating body 501 is substantially cylindrical, having an axis of rotation. The rotating body 501 is disposed coaxially with the decelerating wear-resistant pieces 55. Four second guide receiving holes 504 are formed in a side wall of the rotating body 501 and are uniformly distributed in the circumferential direction thereof, and are configured to receive four guides 521, respectively. The rotating rod 502 is disposed coaxially with the rotating body 501. An end portion of the rotating lever 502 is received by the first end hollow portion 416 of the receiving wheel 40, and the rotating lever 502 is rotatable relative to the boss 414. A transmission gear 503 is provided on the rotation lever 502 so that the rotation of the transmission gear 503 can rotate the rotation body 501.

The deceleration assembly 54 includes four deceleration blocks 511, four guides 521, and a deceleration elastic member 531. Four deceleration blocks 511 are arranged around the rotating body 501. The specific structure of each of the four deceleration blocks 511 is the same. Specifically, the deceleration block 511 is substantially a sector cylinder. Having arcuate outer and inner side walls 514,515. The arc of the inner sidewall 515 is the same as the arc of the sidewall of the rotating body 501. The deceleration block 511 is provided with a first guide accommodating hole 513. A first guide receiving hole 513 is formed extending radially from the inner sidewall 515 to the outer sidewall 514 for receiving the guide 521. The deceleration block 511 is also provided with an elastic body housing 512. The elastic body accommodating portion 512 is formed to extend from the outer sidewall 514 to the inner sidewall 515 in the circumferential direction, and accommodates a portion of the decelerating elastic member 531. The specific structure of each of the four guides 521 is the same. Specifically, the guide 521 is substantially cylindrical, and one end thereof is received in the second guide receiving hole 504 of the rotating body 501 and the other end thereof is received in the first guide receiving hole 513, so that the four speed reduction blocks 511 and the rotating member 53 are movably coupled together. When the rotating member 53 and the reduction assembly 54 are assembled in place, the four reduction blocks 511 are able to move relative to the rotating member 53 along the four guides 521, respectively. The decelerating elastic member 531 has a ring shape. Which is provided around the four deceleration blocks 511 and is accommodated in the elastic body accommodating portion 512 on the four deceleration blocks 511.

When the speed reduction mechanism 51, the planetary mechanism 52 and the storage wheel 40 are assembled in place, the user rotates the handle 4, and the handle 4 rotates the storage wheel 40. Since the ring gear 44 in the storage wheel 40 is engaged with the first planetary gears 611 and the second planetary gears 612, and the first planetary gears 611 and the second planetary gears 612 are engaged with the transmission gears 503, when the storage wheel 40 rotates, the ring gear 44 of the storage wheel 40 rotates, thereby rotating the two planetary gears. The rotation of the two planetary gears rotates the transmission gear 503 in the reduction mechanism 51, thereby rotating the rotating body 501. When the user rotates the handle 4, the rotational speed of the storage wheel 40 is the same as the speed at which the user rotates the handle 4. The two planetary gears can accelerate the rotation of the transmission gear 503 so that the rotation speed of the transmission gear 503 is greater than the rotation speed of the storage wheel 40.

The deceleration principle of the deceleration assembly 54 is based on the rotational speed of the drive gear 503. The deceleration principle of the deceleration assembly 54 is described below with reference to fig. 12-13:

fig. 12 is a diagram showing a state where the rotating member 53 in the speed reducing mechanism 51 rotates at a low speed. As shown in fig. 12, the rotating member 53 and the four speed reduction blocks 511 are rotating at a low speed. The four deceleration blocks 511 are rotated while being subjected to centrifugal force, and are separated from the rotating member 53 along the four guides 521, respectively. The decelerating elastic member 531 is expanded by the four decelerating blocks 511 away from the rotating part 53. The deformed deceleration elastic member 531 generates a contraction force toward the rotation member 53 to the four deceleration blocks 511. At this time, the four deceleration blocks 511 are held in place by centrifugal and contraction forces in opposite directions. Since the rotational speed of the rotational member 53 is slow, the four deceleration blocks 511 have not yet contacted the deceleration wearpads 55. The rotating member 53 can rotate at its own rotational speed. At this time, the speed at which the user rotates the handle 4 is the actual rotational speed of the handle 4.

Fig. 13 is a state diagram in which the rotating member 53 in the speed reducing mechanism 51 rotates at a high speed. As shown in fig. 13, the rotating member 53 and the four speed reduction blocks 511 are rotating at high speed. The four deceleration blocks 511 are rotated while being subjected to centrifugal force, and are separated from the rotating member 53 along the four guides 521, respectively. The decelerating elastic member 531 is expanded by the four decelerating blocks 511 away from the rotating part 53. Since the four guides 521 rotate faster around the shaft 202, the centrifugal force to which the four guides 521 are subjected is greater than the contraction force generated by the decelerating elastic member 531, and the four decelerating blocks 511 contact the decelerating wear plates 55. The four deceleration blocks 511 contacting the deceleration wearpads 55 receive a frictional force applied thereto by the deceleration wearpads 55, thereby causing the four deceleration blocks 511 to rotate slowly about the axis of the shaft 202. Since the four deceleration blocks 511 are relatively movably connected to the rotating member 53 by the four guides 521, respectively, the rotation of the four deceleration blocks 511 is slowed, so that the rotation of the rotating member 53 is also slowed. Thereby, the rotation speed of the rotating member 53 is reduced. The rotating member 53, the rotation speed of which is reduced, restricts the rotation of the storage wheel 40, so that the user feels a large rotational resistance. At this time, although the user rotates the handle 4, the user feels a rotational resistance so that the user rotates the handle 4 more slowly.

The speed reduction mechanism 51 in the rope control device of the present invention can reduce the rotation speed of the storage wheel 40 in accordance with the movement speed of the handle 4. That is, when the rotation speed of the handle 4 is slow, the reduction mechanism 51 does not reduce the speed of the storage wheel 40. When the rotation speed of the handle 4 is fast, the speed reduction mechanism 51 reduces the speed of the storage wheel 40, and when the rotation speed of the handle 4 is fast, the force of the four speed reduction blocks 511 against the speed reduction wear-resistant pieces 55 is larger, the friction force generated by the speed reduction wear-resistant pieces 55 is larger, and accordingly, the speed reduction degree of the storage wheel 40 by the speed reduction mechanism 51 is larger.

As one example, the decelerating wall 111 and the decelerating block 511 are made of metal. The decelerating wear pads 55 are made of a non-metal. The hardness of the non-metal is lower than the hardness of the metal. When the deceleration wearpad 55 moves relative to the deceleration block 511, it will wear out in friction due to the low hardness of the non-metal, thereby protecting the deceleration wall 111 and the deceleration block 511 to extend the service life of the rope control device.

It should be noted that although four deceleration blocks 511, four guide pieces 521 and four corresponding second guide receiving holes 504 and four second receiving holes 403 are illustrated in the present application, those skilled in the art will understand that at least two deceleration blocks 511 and the number of guide pieces 521, second guide receiving holes 504 and second receiving holes 403 matching the deceleration blocks are within the scope of the present invention.

It should also be noted that although two planetary gears are shown in this application, one skilled in the art will appreciate that at least one planetary gear is within the scope of the present invention.

As shown in fig. 2-6 and 14-15, the actuating means and the limiting means 60 are housed in a rectangular housing in the lower part of the base 10. The limiting device 60 comprises a limiting seat 61, a limiting piece 63, a first elastic component 64, a limiting linkage rod 68 and a second elastic component 69. The position-limiting base 61 is rotatably connected to the base 10 via a first rotating shaft 621. The first end of the limiting member 63 is rotatably connected to the base 10 through the second rotating shaft 622. The second end of the stopper 63 is a free end for contacting the outer ring gear 42, thereby defining the rotational direction of the receiving wheel 40. The first elastic member 64 is used to provide a force for the stopper 63 against the outer ring gear 42. Specifically, one end of the first elastic member 64 is connected to the stopper base 61, and the other end of the first elastic member 64 is connected to the stopper 63. The first elastic member 64 can keep the stopper 63 in place when the stopper 60 is located at the first position, so that the receiving wheel 40 can only rotate in the clockwise direction. The spacing linkage 68 is arranged generally in an up-down direction. The first end (i.e., the upper end) of the spacing linkage rod 68 is connected with the spacing seat 61, so that when the spacing device 60 rotates around the first rotating shaft 621, the spacing linkage rod 68 can rotate around the first rotating shaft 621 together. One end of the second elastic component 69 is connected with the lower part of the limit linkage rod 68, and the other end is connected with the base 10, and is used for providing driving force for the movement of the limit device 60 from the first position to the second position. Specifically, when the position limiting device 60 is located at the first position, the second elastic member 69 is in a stretched state.

As shown in fig. 14-15, the position limiting device 60 is further provided with a reset rod 67. The reset lever 67 is disposed perpendicular to the plane of the base 10. Specifically, one end of the reset rod 67 is connected to the limiting seat 61, and the other end is a free end, so that the user can conveniently dial the reset rod. In the present invention, the restoring rod 67 can pass through the third cover through hole of the third cover 23 to facilitate the user's operation.

As shown in fig. 3-6, the activation device includes an electric activation device, a manual activation device, and an activation linkage 81. The electric starting device comprises a motor. The motor has a motor body 71 and an output rod 72. The output rod 72 is movable relative to the motor main body 71. The output rod 72 has an output rod initial position and an output rod predetermined position. When the motor is started, the output rod 72 can move upward relative to the motor main body 71 and reach an output rod preset position from an output rod initial position. After reaching the output lever predetermined position, the output lever 72 can move downward relative to the motor main body 71 to return to the output lever initial position. The manual actuating means includes a pressing member 73, an actuating lever 74, and a third elastic member 75. Specifically, referring to fig. 4, the pressing member 73 is disposed perpendicular to the plane of the base 10. The pressing piece 73 has an inclined portion at its center and a thin free end at its right end. The actuating lever 74 is arranged generally in the up-down direction and has an actuating lever initial position and an actuating lever predetermined position. The actuating lever 74 has an aperture 76 therein. The free end of the pressing piece 73 is received in the hole 76. The third elastic means 75 is disposed between the pressing piece 73 and the actuating lever 74 such that the pressing piece 73 is distant from the actuating lever 74. The inclined portion of the pressing member 73 is fitted with the hole 76 of the actuating lever 74 so that when the user presses the pressing member 73, the movement of the pressing member 73 toward the actuating lever 74 moves the actuating lever 74 upward and reaches the actuating lever predetermined position. The third elastic member 75 is configured to: when the user releases the pressing piece 73, the third elastic means 75 applies force to the pressing piece 73, so that the pressing piece 73 is spaced apart from the actuating lever 74, and the actuating lever 74 is moved downward to an actuating lever initial position. An activation linkage 81 is provided at the lower portion of the base receptacle 11 and is arranged substantially parallel to the base of the base receptacle 11. An activation linkage 81 is rotatably connected to the base 10 and has an engageable position and a non-engageable position. Specifically, the left end of the start linkage rod 81 is provided with a snap-in portion 812 for receiving the second end (i.e., the lower end) of the limit linkage rod 68. The actuating linkage 81 is connected to the base 10 by a connection 811 and can rotate about the connection 811. The lower end of the actuating lever 74 of the manual actuating device is connected to the right portion of the actuating linkage 81 so that when the user presses the pressing piece 73, the upward movement of the actuating lever 74 can bring the actuating linkage 81 to rotate about the connecting piece 811 in the counterclockwise direction to move from the engageable position to the non-engaged position. The lower end of the output rod 72 of the electric starting device is connected with the right part of the starting linkage rod 81, so that when the motor is started, the upward movement of the output rod 72 can drive the starting linkage rod 81 to rotate around the connecting piece 811 in the counterclockwise direction. Thus, whether it is an electric actuating device or a manual actuating device, the actuating linkage 81 can be driven to rotate around the connecting piece 811 in the counterclockwise direction to move from the non-engaging position to the engaging position.

The specific structure and application of the rope control device is described below with reference to fig. 4 and 6:

when the indoor environment of the building 1 is in a normal state (i.e., a non-fire state), the movable window 3 is located in the closed position. At this point, the activation lever 74 is in the activation lever home position, the output lever 72 is in the output lever home position, the activation linkage 81 is in the engageable position and the stop 60 is in the first position. Since the catching portion 812 of the spacing linkage bar 68 abuts against the second end (i.e., the lower end) of the activation linkage bar 81, the components can be held in place. The free end of the limiting member 63 of the limiting device 60 abuts against the outer gear ring 42, so that the containing wheel 40 can only rotate in the clockwise direction, and the containing wheel 40 rotating in the clockwise direction can only tighten the rope 5. In other words, the storage wheel 40 rotating clockwise can only store the rope 5 tighter. Thereby, when the indoor environment of the building 1 is a normal state, the movable window 3 can be held in the closed position.

When the indoor ambient temperature of the building 1 rises (i.e., a fire condition), a control device (not shown) can signal the motor to control the motor to start. When the motor is activated, the output rod 72 can be moved from an output rod initial position to an output rod predetermined position to cause the activation linkage rod 81 to move in a counterclockwise direction about the connection 811 from an engageable position to a non-engaged position. The catch portion 812 of the activation linkage 81 no longer abuts against the second end (i.e., lower end) of the restraining linkage 68. The limiting linkage rod 68 drives the limiting device 60 to move from the first position to the second position in the counterclockwise direction around the first rotating shaft 621 under the action of the second elastic component 69. The free end of the stop member 63 no longer abuts against the outer ring gear 42, so that the receiving wheel 40 can rotate in the counterclockwise direction. The user rotates the handle 4 in a counterclockwise direction to rotate the take-up wheel 40 to release the cord 5. The cord 5 no longer restricts the movable window 3 and the movable window 3 moves from the closed position to the open position. Thereby, the movable window 3 is opened, and the smoke in the room can be exhausted out of the building 1.

It should be noted that, when the motor is started, the output rod 72 is moved upward relative to the motor main body 71 (i.e., from the output rod initial position to the output rod predetermined position) to bring the start linkage 81 to the non-engagement position and the position restricting device 60 to the second position, and then the output rod 72 is moved downward relative to the motor main body 71 (i.e., from the output rod predetermined position to the output rod initial position). The output rod 72 rotates the actuating linkage 81 about the connection 811 in a clockwise direction back to the engageable position.

In the rope control device of the present invention, the user may open the movable window 3 by pressing the pressing piece 73 when the indoor ambient temperature rises (i.e., in a fire state). Specifically, the user presses the pressing piece 73, and the inclined portion of the pressing piece 73 applies a force to the activation lever 74 to move the activation lever 74 from the activation lever initial position to the activation lever predetermined position. The activation lever 74 moves the activation linkage 81 in a counterclockwise direction about the connection 811 from the engageable position to the non-engaged position. The catch portion 812 of the activation linkage 81 no longer abuts against the second end (i.e., lower end) of the restraining linkage 68. The limiting linkage rod 68 drives the limiting device 60 to move around the first rotating shaft 621 along the counterclockwise direction from the first position to the second position under the action of the second elastic component 69. The free end of the stop member 63 no longer abuts against the outer ring gear 42, so that the receiving wheel 40 can rotate in the counterclockwise direction. The user rotates the handle 4 in a counterclockwise direction to rotate the take-up wheel 40 to release the cord 5. The cord 5 no longer restricts the movable window 3 and the movable window 3 moves from the closed position to the open position. Thereby, the movable window 3 is opened, and the smoke in the room can be exhausted out of the building 1.

It should be noted that, after the user presses the pressing member 73, the third elastic member 75 applies a force to the pressing member 73, so that the pressing member 73 is away from the actuating rod 74. The actuating lever 74 is no longer pressed by the presser 73 to move from the actuating lever predetermined position to the actuating lever initial position, and brings the actuating linkage lever 81 about the connecting piece 811 to move in the clockwise direction from the non-engaging position to the engageable position.

It will be appreciated that the activation linkage 81 has now returned to the engageable position, whether by electrical or manual activation means to open the movable window 3. However, since the position-limiting device 60 is still located at the second position, the receiving wheel 40 can rotate in either the clockwise direction or the counterclockwise direction.

When the indoor environment of the building 1 is restored to a normal state (i.e., a non-fire state), the user may rotate the handle 4 in the clockwise direction to rotate the receiving wheel 40 in the clockwise direction, thereby tightening the rope 5. As the cord 5 is tightened, the movable window 3 moves from the open position to the closed position. When the movable window 3 reaches the closed position, the user pulls the reset rod 67 upward to move the position limiting device 60 from the second position to the first position around the first rotating shaft 621. When the stop 60 is moved to the first position, the stop linkage 68 reengages the start linkage 81 in the engageable position. The limit link lever 68 is held in the first position by the catching portion 812 of the actuating link 81.

The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.

Claims (10)

1. A reduction gear, comprising:

a deceleration wear pad (55), the deceleration wear pad (55) having a hollow portion; and

a speed reduction mechanism (51), the speed reduction mechanism (51) being provided in a hollow portion of the deceleration wear sheet (55), the speed reduction mechanism (51) including:

a rotating body (501), the rotating body (501) being rotatable relative to the decelerating wear plate (55); and

at least two deceleration blocks arranged around the rotating body (501) and slidably connected with the rotating body (501);

wherein the at least two deceleration blocks are capable of contacting the deceleration wearpads (55).

2. A reduction unit as claimed in claim 1, characterized in that:

the at least two deceleration blocks are configured to: the at least two deceleration blocks are able to contact the deceleration wearpads (55) when they are away from the rotating body (501).

3. A reduction unit as claimed in claim 1, characterized in that:

the rotating body (501) has an axis of rotation about which the rotating body (501) and the at least two deceleration blocks can rotate;

each of the at least two deceleration blocks slides relative to the rotating body (501) in a radial direction of the rotating body (501), wherein the radial direction is perpendicular to the axis of rotation.

4. A reduction unit as claimed in claim 3, characterized in that:

the speed reduction mechanism (51) further includes at least two guide pieces, each of which is arranged in a radial direction of the rotating body (501) and provided corresponding to a corresponding one of the at least two speed reduction blocks;

wherein each of the at least two speed reduction blocks is provided with a first guide receiving hole (513), the rotating body (501) is provided with a second guide receiving hole (504), one end of each of the at least two guides is received in the first guide receiving hole (513), and the other end of each of the at least two guides is received in the second guide receiving hole (504).

5. A decelerator fitting as claimed in claim 4, wherein:

the rotating body (501) is a cylinder, each of the at least two speed reduction blocks is a sector cylinder, the first guide receiving hole (513) is disposed on an inner sidewall (515) of the sector cylinder, and the second guide receiving hole (504) is disposed on an outer sidewall of the rotating body (501).

6. A reduction unit as claimed in claim 1, characterized in that:

the speed reducing mechanism (51) further comprises a speed reducing elastic member (531), wherein the speed reducing elastic member (531) is arranged around the at least two speed reducing blocks and can apply force towards the rotating main body (501) to the at least two speed reducing blocks.

7. A decelerator fitting as claimed in claim 6, wherein:

the decelerating elastic piece (531) is annular;

the outer side wall of each of the at least two deceleration blocks is provided with an elastic body accommodating part (512) for accommodating at least a part of the deceleration elastic member (531).

8. A reduction unit as claimed in claim 1, characterized in that:

the at least two deceleration blocks are made of metal and the deceleration wearpads (55) are made of non-metal.

9. An automated manual intelligent smoke evacuation system comprising a reduction unit according to any one of claims 1 to 8.

10. The automated manual intelligence of claim 9 system of discharging fume, characterized by:

the speed reducing device further comprises a transmission gear (503), wherein the transmission gear (503) is connected with the rotating body (501) and can rotate together with the rotating body (501);

manual-automatic intelligence system of discharging fume still includes:

a storage wheel (40), the storage wheel (40) having an annulus gear (44); and

at least one planetary gear, each of which is disposed around the rotating body (501) and is engaged with the transmission gear (503) and an inner gear ring (44) of the receiving wheel (40).

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