Bidirectional self-locking brake device of speed reducer

Abstract

The utility model relates to the technical field of locking devices, in particular to a bidirectional self-locking brake device of a speed reducer, which comprises the speed reducer and a self-locking brake mechanism fixedly mounted on the speed reducer. The self-locking brake mechanism comprises a self-locking shell, a driving rotating wheel and a fixed plate which are mounted on two opposite sides of the self-locking shell, a driven rotating wheel rotationally mounted on the inner side of the self-locking shell, and a crank connected with the driving rotating wheel; by means of the structure, the driven rotating wheel cannot rotate under the condition that the crank is not rotated, bidirectional self-locking of the film rolling device after rolling is completed is achieved, excessive film rolling of the film rolling device is prevented, and noise is low when the film rolling device is used. Besides, a stirring bolt and two transmission bolts are fixedly installed on the main rotating wheel, the two transmission bolts are arranged on the two sides of the stirring bolt in the circumferential direction, when the crank is rotated, the stirring bolt and the transmission bolts are both used for driving the auxiliary rotating wheel to rotate, the stirring bolt and the transmission bolts are stressed at the same time, and the service life of the device is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of locking devices, in particular to a bidirectional self-locking brake device for a reducer. Background Art

[0002] Greenhouses are often used to grow off-season crops, thanks to their insulation, achieved through external covering films and other insulating materials. Existing greenhouses are covered with multiple layers of film, and the internal temperature is regulated by adding or removing layers. Adjusting the film quantity is accomplished by rolling up or releasing each layer. Due to the length and height of greenhouses, manually rolling up the film alone is difficult.

[0003] The hand-cranked film roller used in greenhouses needs to rotate the film roller by turning the crank to complete the film winding. The film roller needs to stop at a certain position when working, which requires the installation of a locking device to achieve braking. For example, the existing patent with patent application number CN202320206954.2 discloses a hand-cranked film roller, which is provided with a locking device, including a ratchet, which is arranged at a position where the input shaft is located outside the outer shell, and a pawl matching the ratchet is also provided on the outer shell. The ratchet and the pawl cooperate to prevent the film roller input shaft from reversing, but it can only be locked in one direction, that is, when the film is being wound, it can prevent the film roller from reversing when it stops, causing the film to fall off the film roller. However, due to the inertia of the crank or the effect of gravity, the film roller may over-wind. In addition, during normal operation, the pawl and the ratchet collide, which not only generates noise but also affects the service life. Utility Model Content

[0004] The purpose of the utility model is to provide a bidirectional self-locking brake device for a reducer to overcome the problems existing in the prior art.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a two-way self-locking brake device for a reducer, comprising a reducer and a self-locking brake mechanism installed and fixed on the reducer, the self-locking brake mechanism comprising a self-locking housing, a main rotating wheel and a fixing plate installed on opposite sides of the self-locking housing, a slave rotating wheel rotatably installed on the inner side of the self-locking housing, and a crank connected to the main rotating wheel; the slave rotating wheel is provided with a first notch and two second notches along the circumferential direction, the first notch and the inner wall of the self-locking housing form a first clamping groove and a second clamping groove, a first locking column is slidably installed in the first clamping groove, and a second locking column is slidably installed in the second clamping groove Two locking columns, one end of the first slot extending in the counterclockwise direction is provided with a first locking portion that can clamp the first locking column, and the end of the second slot extending in the clockwise direction is provided with a second locking portion that can clamp the second locking column; one end of the first slot away from the first locking portion and one end of the second slot away from the second locking portion are both connected to one end of a spring, and the other end of the spring abuts against the corresponding first locking column and second locking column; a toggle latch inserted in the first notch and two transmission latches correspondingly inserted in the second notch are fixedly installed on the main rotating wheel, and the two transmission latches are circumferentially arranged on both sides of the toggle latch.

[0006] On the basis of the above technical solution, the present invention can also be improved as follows:

[0007] As a further improvement of the above technical solution, a main rotating wheel is rotatably mounted on one side of the outside of the self-locking housing, one end of the toggle latch is fixedly mounted on the main rotating wheel, and the other end of the toggle latch is inserted between the first locking column and the second locking column, one end of the transmission latch is fixedly mounted on the main rotating wheel, and the other end of the transmission latch is inserted into the second notch, and the two transmission latches are symmetrical about the distance axis from the center of the rotating wheel to the toggle latch.

[0008] As a further improvement of the above technical solution, the first notch is arc-shaped, and one end of the first slot provided with the first locking portion is connected to one end of the second slot provided with the second locking portion.

[0009] As a further improvement of the above technical solution, the reducer includes a reducer housing and a gear set installed in the reducer housing, the gear set is installed with an input shaft and one end of the output shaft, and the other end of the input shaft away from the reducer housing passes through the reducer housing and is connected to the self-locking brake mechanism.

[0010] As a further improvement of the above technical solution, the fixing plate is fixedly installed on the other side of the outside of the self-locking housing, and the fixing plate is provided with a first through hole and multiple first fixing holes. The first through hole is provided in the center of the fixing plate for cooperating with the input shaft, and the multiple first fixing holes are surrounded by the first through hole and are equidistant from each other; the self-locking housing is provided with multiple threaded holes corresponding to the first fixing holes on the fixing plate, and multiple screws pass through the first fixing holes on the fixing plate and are screwed to the threaded holes on the self-locking housing, thereby fixing the side of the fixing plate away from the reducer housing with the side of the self-locking housing away from the main rotating wheel.

[0011] As a further improvement of the above technical solution, two second fixing holes are provided at both ends of the fixing plate, and two fixing columns are fixedly installed at both ends of the reducer housing corresponding to the fixing plate. The fixing columns are provided with threaded holes, and two fixing bolts pass through the second fixing holes of the fixing plate and are screwed to the threaded holes on the fixing columns, thereby fixing the fixing plate and the reducer housing.

[0012] As a further improvement of the above technical solution, a spline is provided at the other end of the input shaft away from the reducer housing, and a spline hole matching the spline is provided on the slave rotating wheel. A second through hole is provided in the center of the main rotating wheel, and a bearing is installed on the side of the main rotating wheel away from the self-locking housing. The input shaft passes through the first through hole of the fixed plate, the spline hole of the slave rotating wheel and the second through hole of the main rotating wheel in sequence, and the bearing is sleeved on the input shaft. A threaded hole is provided at the end of the input shaft away from the reducer housing, and a tightening bolt is screwed and fixed to the threaded hole and abuts against the bearing, thereby assembling the main rotating wheel and the self-locking housing.

[0013] As a further improvement of the above technical solution, the gear set includes an input gear fixedly mounted on the input shaft, the input gear meshes with the transition gear, the transition gear is fixedly mounted on the transition shaft, the transition shaft is rotatably connected to the reducer housing, the transition gear meshes with the output gear, the output gear is fixedly mounted on the output shaft, and the output shaft is rotatably mounted on the reducer housing.

[0014] As a further improvement of the above technical solution, one end of the crank is connected to the main rotating wheel, and the other end is connected to the handle.

[0015] The beneficial effects of the present invention are as follows: the bidirectional self-locking brake device for the reducer provided by the present invention, through the above-mentioned structure, can prevent the slave rotating wheel from rotating without turning the crank, thereby achieving bidirectional self-locking of the film winder after winding is completed, preventing the film winder from over-winding, and the device is relatively quiet during use. In addition, two transmission latches that cooperate with the toggle latch are fixedly mounted on the main rotating wheel, and the two transmission latches are circumferentially arranged on both sides of the toggle latch. When the crank is turned, the toggle latch and the transmission latch are both used to drive the slave rotating wheel to rotate, and the toggle latch and the transmission latch are simultaneously stressed, thereby extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0017] Figure 1 This is a structural diagram of a bidirectional self-locking brake device for a reducer provided by a preferred embodiment of the present utility model;

[0018] Figure 2 yes Figure 1 Schematic diagram of the structure of the self-locking brake mechanism;

[0019] Figure 3 yes Figure 2 A schematic diagram of the structure of the locking mechanism;

[0020] Figure 4 yes Figure 3 A schematic structural diagram of the slave rotating wheel;

[0021] Figure 5 yes Figure 2 A schematic diagram of the structure of the main rotating wheel and the crank;

[0022] Figure 6 yes Figure 2 Schematic diagram of the structure of the fixed plate;

[0023] Figure 7 yes Figure 1 Schematic diagram of the structure of the reducer;

[0024] Figure 8 yes Figure 7 Schematic diagram of the structure of the input shaft;

[0025] In the figure: 10, self-locking housing; 20, main rotating wheel; 21, toggle latch; 22, transmission latch; 23, second through hole; 24, bearing; 30, fixing plate; 31, first through hole; 32, first fixing hole; 321, screw; 33, second fixing hole; 40, slave rotating wheel; 41, first notch; 411, first slot; 412, second slot; 413, first locking portion; 414, second locking portion; 42 , second notch; 43, first locking column; 44, second locking column; 45, spring; 46, spline hole; 50, crank; 51, handle; 60, reducer; 61, reducer housing; 611, fixing column; 612, fixing bolt; 62, input shaft; 621, spline; 622, tightening bolt; 623, input gear; 63, output shaft; 631, output gear; 64, transition shaft; 641, transition gear. DETAILED DESCRIPTION

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. These drawings are simplified schematic diagrams that only illustrate the basic structure of the present invention in a schematic manner, and therefore only show components related to the present invention.

[0027] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] like Figures 1 to 3 As shown, a preferred embodiment of the present invention provides a bidirectional self-locking brake device for a reducer, including a reducer 60 and a self-locking brake mechanism installed and fixed on the reducer 60, the self-locking brake mechanism including a self-locking shell 10, a main rotating wheel 20 and a fixed plate 30 installed on opposite sides of the self-locking shell 10, a slave rotating wheel 40 installed on the inner side of the self-locking shell 10, and a crank 50 connected to the main rotating wheel 20.

[0030] like Figure 3 、 Figure 4As shown, the self-locking housing 10 is cylindrical, and a rotating wheel 40 is rotatably installed on the inside of the self-locking housing 10. The rotating wheel 40 has a first notch 41 and two second notches 42 along the circumferential direction. The first notch 41 is arc-shaped, and the second notch 42 is arc-shaped or rectangular. The first notch 41 is located between the two second notches 42. The first notch 41 and the inner wall of the self-locking housing 10 form a first slot 411 and a second slot 412. A first locking post 43 is slidably mounted in the first slot 411, and a second locking post 44 is slidably mounted in the second slot 412. The counterclockwise end of the first slot 411 is provided with a first locking portion 413 that can engage the first locking post 43, while the clockwise end of the second slot 412 is provided with a second locking portion 414 that can engage the second locking post 44. One end of a spring 45 is connected to both the end of the first slot 411 away from the first locking portion 413 and the end of the second slot 412 away from the second locking portion 414. The other end of the spring 45 abuts against the corresponding first locking post 43 and second locking post 44. The end of the first slot 411 provided with the first locking portion 413 is connected to the end of the second slot 412 provided with the second locking portion 414. The self-locking housing 10 , the slave rotating wheel 40 , the first locking post 43 , and the second locking post 44 are combined to form a locking mechanism.

[0031] like Figure 3 、 Figure 5 As shown, a main rotating wheel 20 is rotatably mounted on one side of the exterior of the self-locking housing 10. A toggle latch 21 corresponding to a first notch 41 and two transmission latches 22 corresponding to second notches 42 are fixedly mounted on the main rotating wheel 20. One end of the toggle latch 21 is fixedly mounted on the main rotating wheel 20, while the other end is inserted between a first locking post 43 and a second locking post 44. One end of the transmission latch 22 is fixedly mounted on the main rotating wheel 20, while the other end is inserted into the second notch 42. The transmission latch 22 extends from the center of the second notch 42 to the edges, leaving a certain amount of space between the two ends. The distance from the center O of the rotating wheel 40 to the toggle latch 21 is AO. The two transmission latches 22 are symmetrical about the distance AO, and the two second notches 42 are also symmetrical about the distance AO. A crank handle 50 is connected to the main rotating wheel 20 at one end and to a handle 51 at the other end. The handle 51 facilitates the operator's rotation of the main rotating wheel 20.

[0032] The toggle latch 21 can push the first locking column 43 away from the first locking portion 413 and the second locking column 44 away from the second locking portion 414. The toggle latch 21 is used alone to drive the slave rotating wheel 40 to rotate, so that only the toggle latch 21 is subjected to force, resulting in a reduced service life of the device. Therefore, two transmission latches 22 that cooperate with the toggle latch 21 are fixedly installed on the main rotating wheel 20, and the two transmission latches 22 are arranged on both sides of the toggle latch 21 along the circumferential direction.

[0033] Taking the clockwise rotation of the main rotating wheel 20 as an example, the transmission latch 22 rotates clockwise in the second notch 42. When the transmission latch 22 reaches the end of the second notch 42, the toggle latch 21 reaches the first locking portion 413 of the first slot 411. As the main rotating wheel 20 continues to rotate clockwise, the transmission latch 22 drives the slave rotating wheel 40 to rotate; at the same time, the toggle latch 21 applies a force to the rotation of the slave rotating wheel 40 by driving the first locking column 43 to squeeze the spring 45; when rotating clockwise, the second locking column 44 does not affect the rotation of the slave rotating wheel 40. The principle of rotating the main rotating wheel 20 counterclockwise is the same as that of rotating clockwise.

[0034] Both the toggle latch 21 and the transmission latch 22 are used to drive the rotation of the slave rotating wheel 40. Force is applied to both the toggle latch 21 and the transmission latch 22 simultaneously, preventing a situation where only the toggle latch 21 is subjected to force during rotation of the slave rotating wheel 40, which would reduce the service life of the device. Furthermore, because the two transmission latches 22 are symmetrical about the distance AO from the center O of the rotating wheel 40 to the toggle latch 21, force is evenly applied to both transmission latches 22 during clockwise and counterclockwise rotation of the slave rotating wheel 40, thereby extending the service life of the device.

[0035] Preferably, if Figure 1 、 Figure 7 As shown, the reducer 60 includes a reducer housing 61 and a gear set installed in the reducer housing 61, and an input shaft 62 and one end of an output shaft 63 are installed on the gear set. The other end of the input shaft 62 away from the reducer housing 61 passes through the reducer housing 61 and is connected to the self-locking brake mechanism; specifically, the other end of the input shaft 62 passes through the fixed plate 30, the slave rotating wheel 40 and the main rotating wheel 20 in sequence.

[0036] Furthermore, if Figure 6 As shown, the fixing plate 30 is fixedly installed on the other side of the outside of the self-locking housing 10. The fixing plate 30 is roughly diamond-shaped and is provided with a first through hole 31, multiple first fixing holes 32 and two second fixing holes 33. The first through hole 31 is provided in the center of the fixing plate 30 for cooperating with the input shaft 62. The multiple first fixing holes 32 surround the first through hole 31 and are equidistant from each other. The two second fixing holes 33 are provided at both ends of the fixing plate 30.

[0037] Furthermore, the self-locking housing 10 is provided with a plurality of threaded holes corresponding to the first fixing hole 32 on the fixing plate 30, and a plurality of screws 321 pass through the first fixing hole 32 on the fixing plate 30 and are screwed to the threaded holes on the self-locking housing 10, thereby fixing the side of the fixing plate 30 away from the reducer housing 61 with the side of the self-locking housing 10 away from the main rotating wheel 20. The diameter of the first fixing hole 32 is slightly larger than the diameter of the screw 321. In this embodiment, the diameter of the first fixing hole 32 is set to 7 mm, and the diameter of the screw 321 is set to 5 mm, so that there is a movable gap between the self-locking housing 10 and the fixing plate 30. The self-locking housing 10 can be freely aligned during operation, and the tightness is adjusted by the screw 321.

[0038] Furthermore, if Figure 1 As shown, the reducer housing 61 is fixedly installed with two fixing columns 611 at both ends of the corresponding fixing plate 30, and the fixing columns 611 are provided with threaded holes. Two fixing bolts 612 pass through the second fixing holes 33 of the fixing plate 30 and are screwed to the threaded holes on the fixing columns 611. The two ends of the fixing plate 30 are locked and fixed with the two fixing columns 611 on the reducer housing 61 by the two fixing bolts 612, thereby fixing the fixing plate 30 to the reducer housing 61.

[0039] Furthermore, if Figure 8 As shown, the other end of the input shaft 62 away from the reducer housing 61 is provided with a spline 621, and the slave rotating wheel 40 is provided with a spline hole 46 that cooperates with the spline 621. Through the cooperation between the spline hole 46 and the spline 621, the slave rotating wheel 40 can rotate synchronously with the input shaft 62.

[0040] Furthermore, if Figure 2 、 Figure 5 As shown, a second through hole 23 is provided in the center of the main rotating wheel 20, and a bearing 24 is installed on the side of the main rotating wheel 20 away from the self-locking housing 10. The input shaft 62 passes through the first through hole 31 of the fixing plate 30, the spline hole 46 of the secondary rotating wheel 40 and the second through hole 23 of the main rotating wheel 20 in sequence, and the bearing 24 is sleeved on the input shaft 62. A threaded hole is provided at the end of the input shaft 62 away from the other end of the reducer housing 61, and a tightening bolt 622 is screwed and fixed to the threaded hole and abuts against the bearing 24, so that the main rotating wheel 20 and the self-locking housing 10 are assembled and installed, and the main rotating wheel 20 can rotate around the input shaft 62.

[0041] Furthermore, if Figure 7As shown, the gear set includes an input gear 623 fixedly mounted on the input shaft 62, the input gear 623 is engaged with a transition gear 641, the transition gear 641 is fixedly mounted on the transition shaft 64, the transition shaft 64 is rotatably connected to the reducer housing 61, the transition gear 641 is engaged with an output gear 631, the output gear 631 is fixedly mounted on the output shaft 63, and the output shaft 63 is rotatably mounted on the reducer housing 61.

[0042] The above-mentioned reducer bidirectional self-locking brake device of the present invention is installed on the film reel when in use. By rotating the crank 50 of the self-locking brake mechanism, the output shaft 63 is driven to rotate, thereby driving the film reel to reel or unreel. When the main rotating wheel 20 is rotated clockwise, the toggle latch 21 toggles the first locking post 43 toward the first locking slot 411 away from the first locking portion 413. As the main rotating wheel 20 continues to rotate, the toggle latch 21 and the spring 45 abutting against the toggle latch 21 push the slave rotating wheel 40 to rotate clockwise. At the same time, the transmission latch 22 also pushes the slave rotating wheel 40 to rotate clockwise. When the toggle latch 21 pushes the first locking post 43 to rotate, due to the clockwise rotation of the slave rotating wheel 40, the second locking post 44 gradually moves toward the second locking slot 412 away from the second locking portion 414, thereby not hindering the clockwise rotation of the slave rotating wheel 40.

[0043] When the main rotating wheel 20 is rotated counterclockwise, the toggle latch 21 will toggle the second locking column 44 toward the second engaging slot 412 away from the second locking portion 414. As the main rotating wheel 20 continues to rotate, the toggle latch 21 and the spring 45 abutting against the toggle latch 21 push the slave rotating wheel 40 to rotate counterclockwise. At the same time, the transmission latch 22 also pushes the slave rotating wheel 40 to rotate counterclockwise. When the toggle latch 21 pushes the second locking column 44 to rotate, due to the counterclockwise rotation of the slave rotating wheel 40, the first locking column 43 will gradually move toward the first engaging slot 411 away from the first locking portion 413, thereby not hindering the counterclockwise rotation of the slave rotating wheel 40.

[0044] When the main rotating wheel 20 stops rotating, if the slave rotating wheel 40 continues to rotate clockwise, the first locking post 43, under the action of the spring 45, will reach the position of the first locking portion 413. The first locking post 43 will then be locked by the first locking portion 413 and the self-locking housing 10, and the slave rotating wheel 40 will stop rotating, thus achieving clockwise locking. The locking principle of the counterclockwise direction is the same as that of the clockwise direction. Therefore, when the main rotating wheel 20 stops rotating, the slave rotating wheel 40 will be locked regardless of whether it is rotating clockwise or counterclockwise, thus achieving a two-way self-locking brake.

[0045] The bidirectional self-locking brake device for the reducer provided by the present invention, through the above-mentioned structure, can prevent the rotation of the slave rotating wheel 40 without turning the crank handle 50, thereby achieving bidirectional self-locking of the film winder after winding is completed, preventing the film winder from over-winding, and the device is relatively quiet during use. In addition, two transmission latches 22 that cooperate with the toggle latch 21 are fixedly mounted on the main rotating wheel 20, and the two transmission latches 22 are circumferentially arranged on both sides of the toggle latch 21. When the crank handle 50 is turned, the toggle latch 21 and the transmission latch 22 are both used to drive the rotation of the slave rotating wheel 40, and the toggle latch 21 and the transmission latch 22 are simultaneously subjected to force, thereby extending the service life of the device.

[0046] Any matters not mentioned in the above specific embodiments of the present invention belong to the known technology in the art and can be implemented with reference to the known technology.

[0047] The above description is based on the ideal embodiment of the present invention. Based on the above description, relevant personnel can make various changes and modifications without departing from the technical scope of the present invention. The technical scope of the present invention is not limited to the content of the specification, but must be determined according to the scope of the claims.

Claims

1. A bidirectional self-locking brake device for a reducer, comprising a reducer and a self-locking brake mechanism mounted and fixed on the reducer, characterized in that: The self-locking brake mechanism includes a self-locking housing, a main rotating wheel and a fixed plate installed on opposite sides of the self-locking housing, a slave rotating wheel rotatably installed on the inner side of the self-locking housing, and a crank connected to the main rotating wheel; the slave rotating wheel is provided with a first notch and two second notches along the circumference, the first notch and the inner wall of the self-locking housing form a first clamping groove and a second clamping groove, the first locking column is slidably installed in the first clamping groove, and the second locking column is slidably installed in the second clamping groove. One end of the first clamping groove extending in the counterclockwise direction is provided with a first locking portion that can clamp the first locking column, and the end of the second clamping groove extending in the clockwise direction is provided with a second locking portion that can clamp the second locking column; one end of the first clamping groove away from the first locking portion and the end of the second clamping groove away from the second locking portion are both connected to one end of the spring, and the spring The other end is in abutment with the corresponding first locking column and second locking column; a toggle pin inserted in the first notch and two transmission pins correspondingly inserted in the second notch are fixedly mounted on the main rotating wheel, and the two transmission pins are circumferentially arranged on both sides of the toggle pin; the reducer includes a reducer housing and a gear set installed in the reducer housing, and the gear set is mounted with one end of an input shaft and an output shaft, and the other end of the input shaft away from the reducer housing passes through the reducer housing and is connected to the self-locking brake mechanism; a spline is provided at the other end of the input shaft away from the reducer housing, and a spline hole matching the spline is provided on the slave rotating wheel, a second through hole is provided in the center of the main rotating wheel, and the input shaft passes through the spline hole of the slave rotating wheel and the second through hole of the main rotating wheel, and the main rotating wheel can rotate around the input shaft.

2. The reducer bidirectional self-locking brake device according to claim 1, characterized in that: A main rotating wheel is rotatably mounted on one side of the outer side of the self-locking housing, one end of the toggle latch is fixedly mounted on the main rotating wheel, the other end of the toggle latch is inserted between the first locking column and the second locking column, one end of the transmission latch is fixedly mounted on the main rotating wheel, the other end of the transmission latch is inserted into the second notch, and the two transmission latches are symmetrical about the distance axis from the center of the rotating wheel to the toggle latch.

3. The reducer bidirectional self-locking brake device according to claim 2, characterized in that: The first notch is arc-shaped, and one end of the first slot provided with the first locking portion is communicated with one end of the second slot provided with the second locking portion.

4. The reducer bidirectional self-locking brake device according to claim 2, characterized in that: The fixing plate is fixedly installed on the other side of the outside of the self-locking housing, and the fixing plate is provided with a first through hole and multiple first fixing holes. The first through hole is provided in the center of the fixing plate for cooperating with the input shaft, and the multiple first fixing holes are surrounded by the first through hole and are equidistant from each other; the self-locking housing is provided with multiple threaded holes corresponding to the first fixing holes on the fixing plate, and multiple screws pass through the first fixing holes on the fixing plate and are screwed to the threaded holes on the self-locking housing, thereby fixing the side of the fixing plate away from the reducer housing and the side of the self-locking housing away from the main rotating wheel.

5. The reducer bidirectional self-locking brake device according to claim 4, characterized in that: Two second fixing holes are also provided at both ends of the fixing plate, and two fixing columns are fixedly installed on the two ends of the reducer housing corresponding to the fixing plate. The fixing columns are provided with threaded holes, and two fixing bolts pass through the second fixing holes of the fixing plate and are screwed to the threaded holes on the fixing columns, thereby fixing the fixing plate and the reducer housing.

6. The reducer bidirectional self-locking brake device according to claim 5, characterized in that: A bearing is installed on the side of the main rotating wheel away from the self-locking housing, and the input shaft passes through the first through hole of the fixed plate, the spline hole of the slave rotating wheel and the second through hole of the main rotating wheel in sequence, and the bearing is sleeved on the input shaft. A threaded hole is provided at the end of the input shaft away from the other end of the reducer housing, and a tightening bolt is screwed and fixed to the threaded hole and abuts against the bearing, thereby assembling the main rotating wheel and the self-locking housing.

7. The reducer bidirectional self-locking brake device according to claim 6, characterized in that: The gear set includes an input gear fixedly mounted on the input shaft, the input gear meshes with a transition gear, the transition gear is fixedly mounted on the transition shaft, the transition shaft is rotatably connected to the reducer housing, the transition gear meshes with an output gear, the output gear is fixedly mounted on the output shaft, and the output shaft is rotatably mounted on the reducer housing.

8. The reducer bidirectional self-locking brake device according to claim 1, characterized in that: One end of the crank is connected to the main rotating wheel, and the other end is connected to the handle.

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