Tractor and drainage device with same

Abstract

The tractor comprises a driving mechanism, a driving gear, a driven gear, a traction mechanism and a clutch transmission mechanism, a locking mechanism is arranged between the traction mechanism and the clutch transmission mechanism, and a linkage mechanism is arranged between the traction mechanism and the driven gear. A locking clutch assembly is arranged between the driving gear and the driven gear, and the linkage mechanism is in linkage fit with the locking clutch assembly, so that the driving gear and the driven gear are switched between a linkage state and a separation state; the drainage device comprises a three-way pipe, the three-way pipe comprises a water inlet cavity, a water outlet cavity and an installation cavity which are communicated, a sealing assembly is arranged in the installation cavity and comprises an elastic sealing sleeve and a valve element, and the valve element is fixedly connected with a pull wire of the tractor. The automatic take-up device has the advantages that a novel mechanical structure is utilized, the structure is compact, and the automatic take-up effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a tractor and a drainage device having the same. Background Art

[0002] The washing machines currently on the market are usually equipped with a complete drainage system including a drain valve, but such drainage systems usually occupy a large volume, resulting in a waste of space inside the washing machine.

[0003] The existing Chinese patent with announcement number CN 217127801U discloses a drainage structure of a washing machine, including an inner barrel and an outer barrel, a main shaft is provided at the bottom of the inner barrel, the main shaft passes through the outer barrel, and the main shaft and the outer barrel are rotatably sealed and connected, a guide groove is provided on the wall of the inner barrel, a drainage outlet is provided at the bottom, a switchable drainage valve is provided below the drainage outlet, a drainage pipe is provided at the bottom of the outer barrel, a pressure plate that can slide up and down is sleeved on the main shaft, a directional key is connected between the pressure plate and the main shaft, a supporting rod is connected between the pressure plate and the drainage valve, a supporting wheel that is in rolling contact with the pressure plate is provided below the pressure plate, a lever is provided below the pressure plate, a supporting wheel is provided in the middle of the lever, a pillar is connected to the right end, an elastic telescopic arm is connected to the left end, and a traction rope is movably passed through the middle of the elastic telescopic arm.

[0004] However, the above-mentioned washing machine drainage structure has the following disadvantages: it controls the opening and closing of the drain valve by driving the support rod up and down through the support wheel, but the up and down movement of the drag rod requires a large space inside the washing machine, compressing the drum space of the washing machine. If the volume of the drum space needs to be kept unchanged, the overall height of the washing machine needs to be increased, resulting in the overall volume of the washing machine being larger and not compact enough. Utility Model Content

[0005] The utility model aims to provide a tractor and a drainage device having the same, which has a compact structure and can realize the effect of automatic line collection.

[0006] The above technical objectives of the utility model are achieved through the following technical solutions: a traction device, including a driving mechanism, a driving gear and a driven gear, and also including a traction mechanism and a clutch transmission mechanism, a locking mechanism is provided between the traction mechanism and the clutch transmission mechanism, the driving mechanism can drive the driving gear to rotate, a linkage mechanism is provided between the traction mechanism and the driven gear, a locking clutch assembly is provided between the driving gear and the driven gear, and the linkage mechanism and the locking clutch assembly are coordinated to switch the driving gear and the driven gear between a linkage state and a separation state;

[0007] When the locking mechanism is in an unlocked state, and the driving gear and the driven gear are in a linked state, the driving mechanism drives the driven gear to rotate through the driving gear, and at the same time, under the transmission cooperation between the driving gear and the clutch transmission mechanism, and the transmission cooperation between the driven gear and the traction mechanism, the locking mechanism moves to the locked state;

[0008] When the locking mechanism is in the locking state, the driven gear cooperates with the traction mechanism to realize winding. Meanwhile, during the winding process of the traction mechanism, the linkage mechanism drives the driving gear and the driven gear to move from the linkage state to the separation state.

[0009] By adopting the above technical scheme, in the initial state, the traction line of the traction mechanism is in a pulled-out locking state. At this time, under the linkage action of the linkage mechanism and the locking assembly, the active gear and the driven gear maintain a linkage state, the driving mechanism drives the active gear to rotate, the active gear drives the driven gear to rotate, and then the active gear and the clutch transmission mechanism are in transmission cooperation, and the driven gear and the traction mechanism are in transmission cooperation. At this time, the locking mechanism gradually moves from the unlocked state to the locked state, and the clutch transmission mechanism switches from the "closed" state to the "disconnected" state, and then the driving mechanism continues to drive the driven gear to rotate through the active gear, and the driven gear drives the traction mechanism to wind the line. In the process of winding the traction line, the linkage mechanism separates the driven gear relative to the active gear, thus completing a winding process. The utility model utilizes multi-stage transmission to achieve the purpose of winding and maintaining, has a compact structure, and can achieve the effect of automatic winding.

[0010] The utility model is further configured as follows: the locking mechanism includes a first locking member and a second locking member, the first locking member is transmission-connected to the output end of the clutch transmission mechanism, the second locking member is transmission-connected to the traction mechanism, the first locking member is provided with a first stop portion, the second locking member is provided with a second stop portion, and the first stop portion and the second stop portion are stop-matched.

[0011] By adopting the above technical solution, the driving mechanism is connected to the clutch transmission mechanism through the driving gear, so that the output end of the clutch transmission mechanism drives the first locking member to rotate in the forward direction, and at the same time, the driven gear drives the second locking member to rotate in the reverse direction through the traction mechanism until the first stop portion of the first locking member and the second stop portion of the second locking member abut against the stop, thereby realizing the locking of the locking mechanism and switching the clutch transmission mechanism to the "off" state. The driving gear drives the traction mechanism to wind the wire through the driven gear.

[0012] The utility model is further configured as follows: the traction mechanism comprises a planetary gear structure and a winding structure, and the driven gear is respectively connected to the winding structure and the second locking member through the planetary gear structure.

[0013] By adopting the above technical solution, the driving mechanism drives the driven gear to rotate through the driving gear, the driving gear drives the first locking member to rotate through the clutch transmission mechanism, and the driven gear drives the second locking member to rotate through the planetary gear structure until the second locking member and the first locking member are locked with each other. At this time, the clutch transmission mechanism is in a "disengaged" state, and then the driven gear independently controls the winding structure through the planetary gear structure to wind the wire.

[0014] The utility model is further configured as follows: the planetary gear structure includes a rotating shaft and an upper gear ring member, a lower gear ring member, an output gear and a plurality of planetary gears coaxially arranged on the rotating shaft, the plurality of planetary gears are distributed around the rotating shaft and rotatably arranged on the output gear, the upper gear ring member is provided with a first outer gear ring portion and a sun gear, the first outer gear ring is meshed with the driven gear, the lower gear ring member is provided with a second outer gear ring portion and an inner gear ring, the sun gear is meshed with the planetary gears, the planetary gears are meshed with the inner gear ring, the second outer gear ring portion is transmission connected to the second locking member, and the output gear is transmission connected to the winding structure.

[0015] By adopting the above technical solution, in the initial state, the traction line of the traction mechanism is in a pulled-out locking state, at which time the locking mechanism is in an unlocked state, and the driving gear and the driven gear are in a linked state, the driving mechanism drives the driven gear to rotate through the driving gear, the driven gear drives the upper gear ring member to rotate, and the upper gear ring member drives the planetary gear to rotate through the sun gear. Since the winding structure is in a locked state at this time, the output gear remains stationary, and the planetary gear rotates by itself. The meshing action of the planetary gear and the inner gear ring makes the lower gear ring member rotate, and the lower gear ring member then drives the second locking member to rotate until the first locking member and the second locking member are locked with each other. At this time, the clutch transmission mechanism is in a "disengaged" state, the driving mechanism continues to drive the driven gear to rotate through the driving gear, the driven gear continues to drive the upper gear ring member to rotate, and the upper gear ring member drives the planetary gear to rotate using the sun gear. Since the lower gear ring member remains locked at this time, the planetary gear revolves relative to the inner gear ring of the lower gear ring member, thereby driving the output gear to rotate, and the output gear then drives the winding structure to wind the wire.

[0016] The utility model is further configured as follows: the winding structure includes a first double gear, a winding gear and a traction wheel, the winding gear can drive the traction wheel to rotate, and the output gear is transmission-connected to the winding gear through the first double gear.

[0017] By adopting the above technical solution, the output gear rotates through the first double gear to drive the winding gear to rotate, and the winding gear further drives the traction wheel to rotate to reel in the line.

[0018] The utility model is further configured as follows: the linkage mechanism includes a clutch lever, a track groove and a clutch spring, the locking clutch assembly is arranged between the driving gear and the driven gear, the track groove is opened on the winding gear, one end of the clutch lever is rotationally connected to the first double gear, the clutch lever is provided with a linkage rod guided by the track groove, a guide structure is provided between the clutch lever and the driven gear, and under the linkage cooperation of the locking clutch assembly and the guide structure, the clutch lever can rotate to drive the driven gear to be relatively close to or away from the driving gear.

[0019] By adopting the above technical solution, the output gear rotates to drive the first double gear to rotate, and the first double gear drives the winding gear to rotate. At this time, the guiding cooperation of the linkage rod and the track groove is used to make the clutch lever move away from the winding gear. At the same time, under the guiding action of the guide structure, the downward pressure of the clutch lever on the driven gear is released, and then the locking clutch assembly is used to make the driven gear move upward away from the driving gear until the locking clutch assembly between the driven gear and the driving gear moves from the locked state to the unlocked state, so that the driving gear cannot drive the driven gear to continue to rotate.

[0020] The utility model is further configured as follows: the locking clutch assembly includes a plurality of locking blocks and a clutch spring which are relatively arranged on the relative contact surfaces of the driving gear and the driven gear. The clutch spring always has a tendency to drive the driven gear to move away from the driving gear. When the driving gear and the driven gear maintain a linkage state, the driving gear and the driven gear are locked and matched through the corresponding locking blocks.

[0021] By adopting the above technical solution, when the linkage mechanism drives the driven gear to contact and fit with the driving gear up and down, the locking block at the lower end of the driven gear extends into the gap between the adjacent locking blocks at the upper end of the driving gear, so that the corresponding locking blocks of the driving gear and the driven gear are locked and cooperated with each other, and then the rotation of the driving gear can drive the driven gear to rotate synchronously; when the downward pressure of the clutch lever on the driven gear is removed, the clutch spring uses its own elastic force to push the driven gear away from the driving gear.

[0022] The utility model is further configured as follows: the clutch transmission mechanism includes a magnetic cylinder clutch assembly, a transmission gear, and a second double gear; the driving gear is transmission-connected to the magnetic cylinder clutch assembly through the transmission gear; and the output end of the magnetic cylinder clutch assembly is transmission-connected to the first locking member through the second double gear;

[0023] The magnetic steel clutch assembly includes an induced gear cover, an induced magnetic cylinder assembly, an induced spring and an induced gear seat. The induced magnetic cylinder assembly is limited and stopped in rotation with the induced gear seat. The induced magnetic cylinder assembly is frictionally engaged with the induced gear cover, and the induced spring always has a movement tendency to drive the induced magnetic cylinder assembly to press against the induced gear cover.

[0024] By adopting the above technical solution, the active gear drives the induced gear seat to rotate through the transmission gear, and the induced gear seat further drives the induced magnetic cylinder assembly to rotate. When the locking mechanism is in the unlocked state, the elastic driving force of the induced spring is used to generate friction between the induced magnetic cylinder assembly and the induced gear cover. At this time, the magnetic steel clutch assembly is in the "closed" state, and the induced magnetic cylinder assembly can drive the induced gear cover to rotate through the friction force, and the induced gear cover then drives the first locking member to rotate through the second double gear. When the first locking member rotates to lock with the second locking member, the driving force of the driving mechanism overcomes the friction between the induced magnetic cylinder assembly and the induced gear cover. At this time, the magnetic steel clutch assembly is in the "closed" state, and the driving gear can continue to drive the active gear to rotate, so that the winding operation of the traction mechanism can continue.

[0025] The utility model is further configured as follows: the size of the induced gear cover is set to A*φB, wherein the height A is set to 9-10mm and the diameter B is set to 15-16mm; the size of the induced magnetic cylinder assembly is set to C*φD, wherein the height C is set to 5-6mm and the diameter D is set to 11-13mm; the size of the induced spring is set to E*φF, wherein the height E is set to 1-2mm and the diameter F is set to 5-6mm; the size of the induced gear seat is set to G*φH, wherein the height G is set to 7-8mm and the diameter H is set to 15-16mm.

[0026] Another technical purpose of the utility model is to provide a drainage device with a traction device, including a three-way pipe, the three-way pipe including a water inlet chamber, a water outlet chamber and an installation chamber that are connected to each other, a sealing assembly is provided in the installation chamber, the sealing assembly includes an elastic sealing sleeve and a valve core, the valve core is fixedly connected to the traction line of the traction device, and the elastic sealing sleeve always has a movement tendency to drive the valve core and the water outlet chamber to maintain a sealed state.

[0027] By adopting the above technical solution, in a static state, the elastic force of the elastic sealing sleeve is used to push the valve core and the water outlet chamber to maintain a sealed state. At this time, the traction line of the traction device pulled by the valve core is in an extended state. When the traction device winds up the traction line to pull the valve core away from the water outlet chamber, the water inlet chamber and the water outlet chamber are connected for discharge.

[0028] In summary, the utility model has the following beneficial effects:

[0029] A driving mechanism, a driving gear, a driven gear, a traction mechanism and a clutch transmission mechanism are arranged in the traction device. At the same time, a locking mechanism is arranged between the traction mechanism and the clutch transmission mechanism. In addition, a linkage mechanism is arranged between the traction mechanism and the driven gear. A locking clutch assembly is arranged between the driving gear and the driven gear. The driving gear and the driven gear are switched between a linkage state and a separation state through the linkage cooperation between the linkage mechanism and the locking clutch assembly. In the initial state, the traction line of the traction mechanism is in a pulled-out locking state. At this time, under the linkage action of the linkage mechanism and the locking clutch assembly, the driving gear and the driven gear maintain a linkage state, and the driving mechanism drives the driving gear to move forward. The gear rotates, the active gear drives the driven gear to rotate, and then the active gear cooperates with the clutch transmission mechanism, and the driven gear cooperates with the traction mechanism, so that the locking mechanism moves from the unlocked state to the locked state. At this time, the clutch transmission mechanism switches from the "closed" state to the "disconnected" state, and then the driving mechanism continues to drive the driven gear to rotate through the active gear, and the driven gear drives the traction mechanism to wind the line. In the process of winding the traction line, the linkage mechanism acts to separate the driven gear from the active gear. In this way, a winding process is completed. The utility model uses multi-stage transmission to achieve the purpose of winding, has a compact structure, and can achieve the effect of automatic winding. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is an internal structure diagram of the tractor of the utility model.

[0031] Figure 2 It is an internal structure diagram of the tractor of the utility model from another perspective.

[0032] Figure 3 It is an exploded view of the tractor of the utility model.

[0033] Figure 4 It is an exploded view of the planetary gear structure of the utility model.

[0034] Figure 5 It is an exploded view of the winding structure of the utility model.

[0035] Figure 6 It is an exploded view of the winding structure of the utility model from another perspective.

[0036] Figure 7 It is a structural diagram of a magnetic cylinder clutch assembly of the utility model.

[0037] Figure 8 It is a longitudinal sectional view of the magnetic cylinder clutch assembly of the utility model.

[0038] Fig. 9 It is an installation structure diagram of the drainage device and the tractor of the utility model.

[0039] Fig.10 yes Fig. 9A partial view of a longitudinal section view.

[0040] In the figure: 101, upper cover; 102, base; 1, driving mechanism; 10, rotating shaft; 11, driving gear; 12, driven gear; 121, abutment block; 13, locking block; 131, locking surface; 132, guide surface; 2, traction mechanism; 21, planetary gear structure; 211, rotating shaft; 212, upper gear ring member; 2121, first outer gear ring portion; 2122, sun gear; 213, lower gear ring member; 2131, second outer gear ring portion; 2132, inner gear ring; 214, output gear; 215, planetary gear; 22, winding structure; 221, first double gear; 222, winding gear; 223, traction wheel; 3, clutch transmission mechanism; 31, magnetic cylinder clutch assembly; 311, induction gear cover; 312, induction magnetic cylinder assembly; 313 , induction spring; 314, induction gear seat; 32, transmission gear; 321, one-way piece; 33, second double gear; 4, locking mechanism; 41, first locking member; 411, first stop part; 412, tension spring; 42, second locking member; 421, second stop part; 51, clutch lever; 5101, high surface; 5102, low surface; 5103, guide slope; 511, linkage rod; 512, pressing part; 513, positioning block; 514, arc guide groove; 52, track groove; 521, arc segment; 522, straight line segment; 53, clutch spring; 6, guide structure; 7, three-way pipe; 71, water inlet chamber; 72, water outlet chamber; 73, installation chamber; 74, sealing assembly; 741, elastic sealing sleeve; 742, valve core; 8, traction line. DETAILED DESCRIPTION

[0041] The utility model is further described below in conjunction with the accompanying drawings.

[0042] A tractor, such as Figure 1-3As shown, it is formed by the buckling of an upper cover 101 and a base 102, and is provided with a driving mechanism 1, a driving gear 11 and a driven gear 12 inside, and also includes a traction mechanism 2 and a clutch transmission mechanism 3, a locking mechanism 4 is provided between the traction mechanism 2 and the clutch transmission mechanism 3, the driving mechanism 1 can drive the driving gear 11 to rotate, a linkage mechanism is provided between the traction mechanism 2 and the driven gear 12, a locking clutch assembly is provided between the driving gear 11 and the driven gear 12, and the linkage mechanism and the locking clutch assembly are coordinated to switch the driving gear 11 and the driven gear 12 between the linkage state and the separation state; when the locking mechanism 4 is provided between the traction mechanism 2 and the clutch transmission mechanism 3, the driving gear 11 and the driven gear 12 are switched between the linkage state and the separation state; when the locking mechanism 4 is provided between the traction mechanism 2 and the driven gear 12 ... When the locking mechanism 4 is in the unlocked state, and the driving gear 11 and the driven gear 12 are in the linked state, the driving mechanism 1 drives the driven gear 12 to rotate through the driving gear 11, and at the same time, under the transmission cooperation between the driving gear 11 and the clutch transmission mechanism 3, and the transmission cooperation between the driven gear 12 and the traction mechanism 2, the locking mechanism 4 moves to the locked state; when the locking mechanism 4 is in the locked state, the driven gear 12 and the traction mechanism 2 are linked to achieve winding, and at the same time, during the winding process of the traction mechanism 2, the linkage mechanism drives the driving gear 11 and the driven gear 12 to move from the linked state to the separated state.

[0043] like Figure 1 and Figure 3 As shown, the locking mechanism 4 includes a first locking member 41 and a second locking member 42. The first locking member 41 is transmission-connected to the output end of the clutch transmission mechanism 3, and the second locking member 42 is transmission-connected to the traction mechanism 2. The first locking member 41 is provided with a first stop portion 411, and the second locking member 42 is provided with a second stop portion 421. The first stop portion 411 and the second stop portion 421 are matched with each other, and the driving mechanism 1 is transmission-connected to the clutch transmission mechanism 3 through the driving gear 11, so that the output end of the clutch transmission mechanism 3 drives the first locking member 41 to rotate forward, and at the same time, the driven gear 12 drives the second locking member 42 to rotate reversely through the traction mechanism 2 until the first stop portion 411 of the first locking member 41 and the second stop portion 421 of the second locking member 42 abut against the stop, thereby realizing the locking of the locking mechanism 4, and at the same time, the clutch transmission mechanism 3 is switched to the "off" state, and the driving gear 11 drives the traction mechanism 2 to wind the wire through the driven gear 12.

[0044] like Figure 1-3 and Figure 5-6As shown, the traction mechanism 2 includes a planetary gear structure 21 and a winding structure 22. The driven gear 12 is respectively connected to the winding structure 22 and the second locking member 42 through the planetary gear structure 21. The driving mechanism 1 drives the driven gear 12 to rotate through the driving gear 11. The driving gear 11 drives the first locking member 41 to rotate through the clutch transmission mechanism 3. The driven gear 12 drives the second locking member 42 to rotate through the planetary gear structure 21 until the second locking member 42 and the first locking member 41 are locked with each other. At this time, the clutch transmission mechanism 3 is in a "disengaged" state, and then the driven gear 12 controls the winding structure 22 to wind the wire through the planetary gear structure 21 alone.

[0045] like Figure 1-3 and Figure 4 As shown, the planetary gear structure 21 includes a rotating shaft 211 and an upper gear ring member 212, a lower gear ring member 213, an output gear 214 and a plurality of planetary gears 215 coaxially arranged on the rotating shaft 211. The plurality of planetary gears 215 are distributed around the rotating shaft 211 and are rotatably arranged on the output gear 212. The upper gear ring member 212 is provided with a first outer gear ring portion 2121 and a sun gear 2122. The first outer gear ring is meshed with the driven gear 12. The lower gear ring member 213 is provided with a second outer gear ring portion 2131 and an inner gear ring 2132. The sun gear 2122 is meshed with the planetary gear 215, the planetary gear 215 is meshed with the inner gear ring 2132, the second outer gear ring portion 2131 is transmission-connected with the second locking member 42, the output gear 214 is transmission-connected with the winding structure 22, and the traction line 8 of the traction mechanism 2 is in a pulled-out locking state in the initial state, at this time, the locking mechanism 4 is in an unlocked state, and the driving gear 11 and the driven gear 12 are in a linkage state, the driving mechanism 1 drives the driven gear 12 to rotate through the driving gear 11, and the driven gear 12 drives The upper gear ring 212 rotates, and the upper gear ring 212 drives the planetary gear 215 to rotate through the sun gear 2122. Since the winding structure 22 is in a locked state at this time, the output gear 214 remains stationary, and the planetary gear 215 rotates on its own. The meshing action of the planetary gear 215 and the inner gear ring 2132 causes the lower gear ring 213 to rotate, and the lower gear ring 213 then drives the second locking member 42 to rotate until the first locking member 41 and the second locking member 42 are locked with each other. At this time, the clutch transmission Mechanism 3 is in the "off" state, the driving mechanism 1 continues to drive the driven gear 12 to rotate through the driving gear 11, the driven gear 12 continues to drive the upper ring gear 212 to rotate, the upper ring gear 212 uses the sun gear 2122 to drive the planetary gear 215 to rotate, because the lower ring gear 213 remains locked at this time, the planetary gear 215 revolves relative to the inner ring gear 2132 of the lower ring gear 213, thereby driving the output gear 214 to rotate, and the output gear 214 then drives the winding structure 22 to wind the wire.

[0046] like Figure 3 and Figure 5-6As shown, the winding structure 22 includes a first double gear 221, a winding gear 222 and a traction wheel 223. The winding gear 222 can drive the traction wheel 223 to rotate. The output gear 214 is connected to the winding gear 222 through the first double gear 221. The output gear 214 rotates to drive the winding gear 222 to rotate through the first double gear 221. The winding gear 222 then drives the traction wheel 223 to rotate to reel in the line. The linkage mechanism includes a clutch lever 51 and a track groove 52. The locking clutch assembly is arranged between the driving gear 11 and the driven gear 12. The track groove 52 is opened on the winding gear 222. On the top, one end of the clutch lever 51 is rotatably connected with the first double gear 221, and the clutch lever 51 is provided with a linkage rod 511 which cooperates with the track groove 52. A guide structure 6 is provided between the clutch lever 51 and the driven gear 12. Under the linkage cooperation of the locking clutch assembly and the guide structure 6, the clutch lever 51 rotates to drive the driven gear 12 to be relatively close to or away from the driving gear 11, and the output gear 214 rotates to drive the first double gear 221 to rotate, and the first double gear 221 drives the winding gear 222 to rotate. At this time, the clutch lever 51 is guided by the linkage rod 511 and the track groove 52. The guide structure 6 is used to guide the driven gear 12 away from the winding gear 222, and at the same time, the downward pressure of the clutch lever 51 on the driven gear 12 is released, and then the locking clutch assembly is used to move the driven gear 12 upward away from the driving gear 11, until the locking clutch assembly between the driven gear 12 and the driving gear 11 moves from the locked state to the unlocked state, so that the driving gear 11 cannot drive the driven gear 12 to continue to rotate; the track groove 52 includes a circular arc segment 521 and a straight line segment 522 connected to each other, the circular arc segment 521 is arranged along the rotation center of the winding gear 222, and the straight line segment 522 includes a circular arc segment 521 and a straight line segment 522 connected to each other. The proximal end of the linear segment 522 is connected to one end of the arc segment 521. When the linkage rod 511 is located in the arc segment 521, the rotation of the winding gear 222 will not drive the linkage rod 511 to rotate. When the winding gear 222 rotates to make the linkage rod 511 fall into the straight segment 522, the linkage rod 511 moves from the proximal end to the distal end relative to the straight segment 522 under the guiding effect of the straight segment 522 of the track groove 52 on the linkage rod 511, and at the same time drives the linkage rod 511 to drive the clutch lever 51 away from the winding gear 222.The guide structure 6 in this embodiment includes a pressing portion 512 extending from the lower end of the clutch lever 51, a guiding inclined surface 5103 is provided between one side of the pressing portion 512 and the clutch lever 51, the end of the pressing portion 512 in contact with the clutch lever 51 is a high surface 5101, and the end of the pressing portion 512 away from the clutch lever 51 is a low surface 5102, and the guiding inclined surface 5103 is used to guide and connect the high surface 5101 and the low surface 5102. By using the guiding cooperation between the guiding inclined surface 5103 and the driven gear 12 and the elastic force of the clutch spring 53, the upper end surface of the driven gear 12 slides and switches between the high surface 5101 and the low surface 5102, thereby switching the driven gear 12 and the driving gear 11 between the linkage state and the separation state. ;

[0047] like Figure 1-3 and Figure 5-8As shown, the locking clutch assembly includes a plurality of locking blocks 13 and a clutch spring 53 which are relatively arranged on the relative contact surfaces of the driving gear 11 and the driven gear 12. The clutch spring 53 always has a tendency to drive the driven gear 12 to move away from the driving gear 11. When the driving gear 11 and the driven gear 12 maintain a linkage state, the driving gear 11 and the driven gear 12 are locked and matched through the corresponding locking blocks 13. When the linkage mechanism drives the driven gear 12 to contact and fit with the driving gear 11 up and down, the locking block 13 at the lower end of the driven gear 12 extends into the gap between the adjacent locking blocks 13 at the upper end of the driving gear 11, so that the corresponding locking blocks 13 of the driving gear 11 and the driven gear 12 are mutually locked and matched, thereby the driving gear 11 and the driven gear 12 are locked and matched. The rotation of the wheel 11 can drive the driven gear 12 to rotate synchronously; when the downward pressure of the clutch lever 51 on the driven gear 12 is removed, the clutch spring 53 uses its own elastic force to push the driven gear 12 away from the driving gear 11; the clutch transmission mechanism 3 includes a magnetic cylinder clutch assembly 31, a transmission gear 32, and a second double gear 33. The driving gear 11 is connected to the magnetic cylinder clutch assembly 31 through the transmission gear 32, and the output end of the magnetic cylinder clutch assembly 31 is connected to the first locking member 41 through the second double gear 33; the magnetic steel clutch assembly includes an induction gear cover 311, an induction magnetic cylinder assembly 312, an induction spring 313 and an induction gear seat 314, and the induction magnetic cylinder assembly 312 and the induction gear seat 314 are limited. The induction magnetic cylinder assembly 312 is frictionally matched with the induction gear cover 311, and the induction spring 313 always has a movement tendency to drive the induction magnetic cylinder assembly 312 to press against the induction gear cover 311. The driving gear 11 drives the induction gear seat 314 to rotate through the transmission gear 32, and the induction gear seat 314 further drives the induction magnetic cylinder assembly 312 to rotate. When the locking mechanism 4 is in the unlocked state, the elastic driving force of the induction spring 313 is used to generate friction between the induction magnetic cylinder assembly 312 and the induction gear cover 311. At this time, the magnetic steel clutch assembly is in the "closed" state, and the induction magnetic cylinder assembly 312 can drive the induction gear cover 311 to rotate through the friction force, and the induction gear cover 311 then drives the induction gear cover 311 through the second The double gear 33 drives the first locking member 41 to rotate. When the first locking member 41 rotates to lock with the second locking member 42, the driving force of the driving mechanism 1 overcomes the friction between the induction magnetic cylinder assembly 312 and the induction gear cover 311. At this time, the magnetic steel clutch assembly is in a "disengaged" state, and the driving gear can continue to drive the active gear 11 to rotate, so that the winding operation of the traction mechanism 2 can continue. In addition, in this embodiment, a tension spring 412 for resetting is provided between the first locking member 41 and the base 102, and a one-way member 321 is provided on the base 102. The one-way member 321 cooperates with the transmission gear 32 so that the transmission gear 32 can only rotate in one direction to prevent the transmission gear 32 from reversing.The locking block 13 in this embodiment includes a locking surface 131 and a guide surface 132 on both sides. When the traction mechanism 2 is kept in the line-releasing state, the traction mechanism 2 drives the clutch lever 51 to always keep the locking surfaces 131 of the driving gear 11 and the driven gear 12 in contact and locked state. When the traction mechanism 2 moves toward the line-winding state, during the movement of the linkage rod 511 of the clutch lever 51 in the straight section 522 of the track groove 52, the clutch lever 51 rotates a small angle relative to the driven gear 12, and under the action of the clutch spring 53, the driven gear 12 is driven away from the driving gear 11, and subsequently the driven gear 12 moves relative to the driving gear 11. During the reset process when the driving gear 11 approaches, under the guiding action of the guide surfaces 132 corresponding to the driving gear 11 and the driven gear 12, the locking block 13 of the driven gear 12 is inserted between the adjacent locking blocks 13 corresponding to the driving gear 11 to achieve locking. The size of the induction gear cover 311 is set to A*φB, wherein the height A is set to 9-10mm, and the preferred height A in this embodiment is set to 9.7mm, and the diameter B is set to 15-16mm, and the preferred diameter B in this embodiment is set to 15.1mm; the size of the induction magnetic cylinder assembly 312 is set to C*φD, wherein the height C is set to 5 ~6mm, in this embodiment, the preferred height C is set to 5.5mm, the diameter D is set to 11~13mm, and the preferred diameter D is set to 15.1mm in this embodiment; the size of the induction spring 313 is set to E*φF, wherein the height E is set to 1~2mm, in this embodiment, the preferred height E is set to 1.8mm, the diameter F is set to 5~6mm, and the preferred diameter F is set to 5.1mm in this embodiment; the size of the induction gear seat 314 is set to G*φH, wherein the height G is set to 7~8mm, in this embodiment, the preferred height G is set to 7.4mm, and the diameter H is set to 15~16mm, The preferred diameter H of the embodiment is set to 15.1 mm; in addition, a positioning block 513 is extended from the lower end of the clutch lever 51 in this embodiment, and a contact block 121 is provided on the driven gear 12 corresponding to the positioning block 513. When the tractor is wound in place, the positioning block 121 will contact with the contact block 121 to prevent the driven gear 12 and the clutch lever 51 from being separated from each other; and the clutch lever 51 is provided with an arc guide groove 514 corresponding to the rotating shaft 10 of the driving gear 11 and the driven gear 12, and the rotating shaft 10 of the driving gear 11 and the driven gear 12 is guided and matched with the arc guide groove 514. ;

[0048] Another object of the present invention is to provide a drainage device having the above-mentioned tractor, such as Figure 9-10As shown, it includes a three-way pipe 7, which includes an interconnected water inlet chamber 71, a water outlet chamber 72 and an installation chamber 73. A sealing assembly 74 is provided in the installation chamber 73. The sealing assembly 74 includes an elastic sealing sleeve 741 and a valve core 742. The valve core 742 is fixedly connected to the traction line 8 of the traction device. The elastic sealing sleeve 741 always has a movement tendency to drive the valve core 742 and the water outlet chamber 72 to maintain a blocked state. In a static state, the elastic force of the elastic sealing sleeve 741 is used to push the valve core 742 and the water outlet chamber 72 to maintain a blocked state. At this time, the valve core 742 pulls the traction line 8 of the traction device to be in an extended state. When the traction device winds up the traction line 8 to pull the valve core 742 away from the water outlet chamber 72, the water inlet chamber 71 and the water outlet chamber 72 are connected for discharge.

[0049] The basic working principle of the utility model is as follows: The working principle of the utility model includes three stages. In the first stage, the elastic sealing sleeve 741 of the drainage device drives the valve core 742 and the water outlet chamber 72 to be in a blocked state by its own elastic force. At this time, the traction line 8 of the winding structure 22 is in a pulled-out state, and the linkage rod 511 is located at the end of the arc section 521 of the track groove 52 away from the straight section 522. The driven gear 12 is pressed tightly below the low surface 5102 of the lower pressing part 512. The locking blocks 13 of the driving gear 11 and the driven gear 12 are locked with each other to stop rotation, so that the driving gear 11 and the driven gear 12 are in a linkage state. The driving mechanism 1 drives the driven gear 12 to rotate through the driving gear 11, and the driven gear 12 drives the upper gear ring 212 to rotate. The upper gear ring 212 drives the planetary gear 215 through the sun gear 2122. Rotation, since the winding structure 22 is in the traction line 8 pulled out and locked state at this time, the output gear 214 remains stationary, and the planetary gear 215 rotates by itself, and the meshing action of the planetary gear 215 and the inner ring gear 2132 is used to rotate the lower ring gear 213, and the lower ring gear 213 then drives the second locking member 42 to rotate. At the same time, the active gear 11 drives the induced gear seat 314 to rotate through the transmission gear 32, and the induced gear seat 314 then drives the induced magnetic cylinder assembly 312 to rotate. When the locking mechanism 4 is in the unlocked state, the elastic driving force of the induced spring 313 is used to generate friction between the induced magnetic cylinder assembly 312 and the induced gear cover 311. At this time, the magnetic steel clutch assembly is in the "closed" state, and the induced magnetic The cylinder assembly 312 can drive the induced gear cover 311 to rotate through the friction force, and the induced gear cover 311 then drives the first locking member 41 to rotate through the second double gear 33 until the first locking member 41 and the second locking member 42 are locked with each other. When the first locking member 41 rotates to lock with the second locking member 42, the driving force of the driving mechanism 1 overcomes the friction between the induced magnetic cylinder assembly 312 and the induced gear cover 311. At this time, the magnetic steel clutch assembly is in a "disengaged" state, and the driving mechanism 1 continues to drive the driven gear 12 to rotate through the driving gear 11, and the driven gear 12 continues to drive the upper ring gear 212 to rotate. The upper ring gear 212 uses the sun gear 2122 to drive the planetary gear 215 to rotate. At this time, the lower gear ring 213 remains locked, and the planetary gear 215 revolves relative to the inner gear ring 2132 of the lower gear ring 213, thereby driving the output gear 214 to rotate. The output gear 214 rotates through the first double gear 221 to drive the winding gear 222 to rotate, and the winding gear 222 further drives the traction wheel 223 to rotate to reel in the line. During the winding process, when the linkage rod 511 is first located in the arc segment 521, the rotation of the winding gear 222 will not drive the linkage rod 511 to rotate. At this time, the winding gear 222 drives the traction wheel 223 to rotate and reel in a section of the traction line 8, and then the first double gear 221 drives the winding gear 222 to continue to rotate, so that the linkage rod 511 falls into the straight segment 522 of the track groove 52.Under the guiding action of the straight section 522 of the track groove 52 on the linkage rod 511, the linkage rod 511 moves from the proximal end to the distal end relative to the straight section 522, so as to realize the secondary winding of the traction line 8 by the winding structure 22, and at the same time, the traction line 8 pulls the valve core 742 away from the water outlet chamber 72, so that the elastic sealing sleeve 741 is in a compressed state, and the linkage rod 511 drives the clutch lever 51 away from the winding gear 222. At the same time, under the guiding action of the guide structure 6 and the elastic force of the clutch spring 53, the driven gear 12 is guided to slide from the low surface 5102 of the lower pressure part 512 to the high surface 5101, so that the driven gear 12 is away from the driving gear 11, until the locking block 13 between the driving gear 11 and the driven gear 12 is separated from each other, so that the driven gear 12 and the driving gear 11 are released from the transmission. In this way, a complete winding process is completed. The utility model uses multi-stage transmission to achieve the purpose of winding, has a compact structure, and can achieve the effect of automatic winding.

[0050] The above description is only a preferred embodiment of the present utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the scope of the present utility model patent application are included in the scope of the present utility model patent application.

Claims

1. A tractor, characterized in that: The invention comprises a driving mechanism (1), a driving gear (11) and a driven gear (12), a traction mechanism (2) and a clutch transmission mechanism (3), wherein a locking mechanism (4) is provided between the traction mechanism (2) and the clutch transmission mechanism (3), the driving mechanism (1) can drive the driving gear (11) to rotate, a linkage mechanism is provided between the traction mechanism (2) and the driven gear (12), a locking clutch assembly is provided between the driving gear (11) and the driven gear (12), and the linkage mechanism and the locking clutch assembly are coordinated to switch the driving gear (11) and the driven gear (12) between a linkage state and a separation state; When the locking mechanism (4) is in an unlocked state, and the driving gear (11) and the driven gear (12) are in a linked state, the driving mechanism (1) drives the driven gear (12) to rotate through the driving gear (11), and at the same time, under the transmission cooperation between the driving gear (11) and the clutch transmission mechanism (3), and the transmission cooperation between the driven gear (12) and the traction mechanism (2), the locking mechanism (4) moves to a locked state; When the locking mechanism (4) is in a locked state, the driven gear (12) cooperates with the traction mechanism (2) to achieve wire winding. Meanwhile, during the wire winding process of the traction mechanism (2), the linkage mechanism drives the driving gear (11) and the driven gear (12) to move from the linkage state to the separation state.

2. A tractor according to claim 1, characterized in that: The locking mechanism (4) comprises a first locking member (41) and a second locking member (42); the first locking member (41) is drivingly connected to the output end of the clutch transmission mechanism (3); the second locking member (42) is drivingly connected to the traction mechanism (2); the first locking member (41) is provided with a first stopper (411); the second locking member (42) is provided with a second stopper (421); the first stopper (411) and the second stopper (421) are stop-matched.

3. A tractor according to claim 2, characterized in that: The traction mechanism (2) comprises a planetary gear structure (21) and a winding structure (22), and the driven gear (12) is respectively connected in transmission with the winding structure (22) and a second locking member (42) through the planetary gear structure (21).

4. A tractor according to claim 3, characterized in that: The planetary gear structure (21) comprises a rotating shaft (211) and an upper gear ring member (212), a lower gear ring member (213), an output gear (214) and a plurality of planetary gears (215) coaxially arranged on the rotating shaft (211). The plurality of planetary gears (215) are distributed around the rotating shaft (211) and are rotatably arranged on the output gear (214). The upper gear ring member (212) is provided with a first outer gear ring portion (2121) and a sun gear (2122). The first outer gear ring portion (2121) is provided with a sun gear (2122). The ring gear is meshed with the driven gear (12), the lower ring gear member (213) is provided with a second outer ring gear portion (2131) and an inner ring gear (2132), the sun gear (2122) is meshed with the planetary gears (215), the planetary gears (215) are meshed with the inner ring gear (2132), the second outer ring gear portion (2131) is transmission-connected with the second locking member (42), and the output gear (214) is transmission-connected with the winding structure (22).

5. A tractor according to claim 4, characterized in that: The wire winding structure (22) comprises a first double gear (221), a wire winding gear (222) and a traction wheel (223); the wire winding gear (222) can drive the traction wheel (223) to rotate; and the output gear (214) is transmission-connected to the wire winding gear (222) via the first double gear (221).

6. A tractor according to claim 5, characterized in that: The linkage mechanism comprises a clutch lever (51) and a track groove (52); the locking clutch assembly is arranged between the driving gear (11) and the driven gear (12); the track groove (52) is formed on the winding gear (222); one end of the clutch lever (51) is rotatably connected to the first double gear (221); the clutch lever (51) is provided with a linkage rod (511) which is guided and matched with the track groove (52); a guide structure (6) is arranged between the clutch lever (51) and the driven gear (12); under the linkage cooperation of the locking clutch assembly and the guide structure (6), the clutch lever (51) can rotate to drive the driven gear (12) to be relatively close to or away from the driving gear (11).

7. A tractor according to claim 1, characterized in that: The locking clutch assembly comprises a plurality of locking blocks (13) and a clutch spring (53) which are arranged on the relative contact surfaces of the driving gear (11) and the driven gear (12). The clutch spring (53) always has a tendency to drive the driven gear (12) to move away from the driving gear (11). When the driving gear (11) and the driven gear (12) maintain a linkage state, the driving gear (11) and the driven gear (12) are locked and matched through the corresponding locking blocks (13).

8. A tractor according to claim 2, characterized in that: The clutch transmission mechanism (3) comprises a magnetic cylinder clutch assembly (31), a transmission gear (32), and a second double gear (33); the driving gear (11) is transmission-connected to the magnetic cylinder clutch assembly (31) via the transmission gear (32); and the output end of the magnetic cylinder clutch assembly (31) is transmission-connected to the first locking member (41) via the second double gear (33); The magnetic cylinder clutch assembly comprises an induction gear cover (311), an induction magnetic cylinder assembly (312), an induction spring (313) and an induction gear seat (314); the induction magnetic cylinder assembly (312) and the induction gear seat (314) are engaged in a position-limiting and rotation-stopping manner; the induction magnetic cylinder assembly (312) and the induction gear cover (311) are frictionally engaged; and the induction spring (313) always has a movement tendency to drive the induction magnetic cylinder assembly (312) to press against the induction gear cover (311).

9. A tractor according to claim 8, characterized in that: The size of the induced gear cover is set to A*φB, where the height A is set to 9-10mm and the diameter B is set to 15-16mm; the size of the induced magnetic cylinder assembly is set to C*φD, where the height C is set to 5-6mm and the diameter D is set to 11-13mm; the size of the induced spring is set to E*φF, where the height E is set to 1-2mm and the diameter F is set to 5-6mm; the size of the induced gear seat is set to G*φH, where the height G is set to 7-8mm and the diameter H is set to 15-16mm.

10. A drainage device having a tractor as claimed in any one of claims 1 to 9, characterized in that: The invention comprises a three-way pipe (7), wherein the three-way pipe (7) comprises a water inlet chamber (71), a water outlet chamber (72) and an installation chamber (73) which are connected to each other. A sealing assembly (74) is arranged in the installation chamber (73). The sealing assembly (74) comprises an elastic sealing sleeve (741) and a valve core (742). The valve core (742) is fixedly connected to a traction line (8) of the tractor. The elastic sealing sleeve (741) always has a movement tendency to drive the valve core (742) and the water outlet chamber (72) to maintain a blocked state.

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