Soaking and washing timer compact in structure and convenient to install

Abstract

A soaking and washing timer compact in structure and convenient to install comprises a shell, a timing main shaft, an escapement mechanism, a forward and reverse rotation mechanism and a transmission mechanism. The timing main shaft is in transmission connection with a head wheel; the escapement mechanism comprises an escapement ratchet wheel and an escapement pendulum; the positive and negative rotation mechanism comprises a positive and negative rotation cam group; the head wheel is in transmission with the escapement ratchet wheel and the positive and negative rotation cam group through a transmission mechanism; the transmission mechanism comprises a first transmission gear, a second transmission gear and a third transmission gear; the first transmission gear and the second transmission gear are both located below the escapement ratchet wheel, and the third transmission gear is located above the escapement ratchet wheel. The structure of the transmission mechanism is simplified, and the position of the transmission mechanism is adjusted, so that the transmission structure in the whole washing timer is more reasonable, the occupied volume of the transmission structure is reduced, and the purpose of reducing the overall volume of the washing timer is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of washing machine timing device, concretely relates to a compact structure and installation convenient soaking washing timer. BACKGROUND

[0002] The washing timer is an important part in the washing machine, which is mainly used to control the forward and reverse rotation of the motor and the washing and rinsing time. The existing washing timer on the market is generally spring type, which uses the spring as power to drive the gear to rotate for timing.

[0003] With the development of washing machine technology in recent years, the functions of the washing machine on the market have become diversified, so the requirements for the washing timer in the washing machine are also increasing, which makes the existing washing timer not only responsible for the control of the start and stop of the washing machine and the switching of the forward and reverse rotation, but also capable of switching between washing and soaking to realize the function of soaking washing of the washing machine.

[0004] On the basis of the above-mentioned washing timer with soaking control function, the latest washing timer function has been further expanded, so that the existing washing timer additionally increases a shift main shaft on the basis of the original timing main shaft, which can realize the adjustment of the washing position of the washing machine, such as the switching of weak washing, standard washing and strong washing positions.

[0005] Among them, the Chinese patent application with the patent number CN201320118395.6 discloses: "a washing machine timer with water flow selection and soaking function includes a shell, a timing shaft, a spring, a head wheel assembly, a transmission gear, a escapement mechanism, a main trigger seat, a control spring seat, a gear set, and a conversion shaft; the timing shaft is connected to the spring, and the spring is connected to the transmission gear and the escapement mechanism; the cam set on the conversion shaft controls the connection and disconnection of the main trigger seat main contact and the buzzer contact through the corresponding lever; the main trigger seat and the cam set are provided with a buzzer lever and a soaking lever, and the main trigger seat and the control spring seat are connected in series to connect the washing machine washing motor to realize the connection, forward rotation, reverse rotation and disconnection of the washing motor function".

[0006] But including the scheme recorded in the above-mentioned patent, the double-shaft washing timer with soaking function and gear shifting function in the prior art has a problem, because the increase of functions leads to the increase of mechanisms in the washing timer, which further leads to the complexity and bulkiness of the transmission mechanism between the mechanisms, so that the volume of the whole washing timer is also affected and increased, and because of the increase of mechanisms and the need for mutual cooperation between the mechanisms, the assembly of this kind of washing timer is very complicated and difficult. SUMMARY

[0007] In order to overcome the double shaft soaking washing timer structure complex in the prior art causes its volume increases and the assembly difficulty, the utility model provides a soaking washing timer which is compact in structure and convenient to install.

[0008] The utility model solves technical scheme of technical problem: a soaking washing timer which is compact in structure and convenient to install, comprising:

[0009] The shell;

[0010] The timing main shaft is rotatably arranged in the shell, and a head wheel is connected to the timing main shaft;

[0011] The escapement mechanism comprises an escapement ratchet wheel and an escapement pendulum, and the escapement pendulum is provided with an escapement clamp for cooperating with the escapement ratchet wheel;

[0012] The forward-reverse mechanism comprises a forward-reverse cam set;

[0013] The transmission mechanism, the head wheel is driven by the transmission mechanism to drive the escapement ratchet wheel and the forward-reverse cam set;

[0014] The transmission mechanism comprises a first transmission gear, a second transmission gear and a third transmission gear;

[0015] The first transmission gear is engaged with the head wheel and the second transmission gear respectively, the second transmission gear is also engaged with the third transmission gear, and the third transmission gear is also engaged with the escapement ratchet wheel, wherein the second transmission gear is also connected to the forward-reverse cam set in transmission;

[0016] The first transmission gear and the second transmission gear are located below the escapement ratchet wheel, and the third transmission gear is located above the escapement ratchet wheel.

[0017] Further, the forward-reverse mechanism further comprises a forward-reverse lever set and a first spring set, the forward-reverse cam set comprises a forward cam and a reverse cam, the forward-reverse lever set comprises a forward lever driven by the forward cam and a reverse lever driven by the reverse cam, and the first spring set comprises a conductive spring, a forward spring and a reverse spring, the forward spring can be in contact with or disconnected from the conductive spring under the drive of the forward lever, and the reverse spring can be in contact with or disconnected from the conductive spring under the drive of the reverse lever.

[0018] Further, the gear shifting mechanism comprises a shifting bar and a shifting wheel; a shifting main shaft is rotatably arranged in the housing; the shifting bar is movable in the housing under the driving of the shifting main shaft; the shifting wheel is in transmission with the shifting bar and cooperates with the forward and reverse lever set; the forward and reverse cams are provided with a plurality of gear steps; the forward and reverse levers are capable of cooperating with the gear steps to realize the transmission with the forward and reverse cams; the shifting bar is capable of driving the forward and reverse lever set to move so that the forward and reverse levers cooperate with different gear steps to realize the gear shifting; the shifting wheel is capable of driving the forward and reverse lever set to move away from or close to the forward and reverse cam set, so that the forward and reverse levers are capable of being disengaged from or cooperating with the gear steps.

[0019] Further, one side of the shifting bar is provided with a driving rack, the lower side of the shifting wheel is provided with a driven gear, the driving rack is in mesh with the driven gear, and the shifting bar is further provided with a positioning protrusion at one end of the driving rack, and the lower side of the shifting wheel is further provided with a positioning notch at the side of the driven gear, and the positioning protrusion is capable of being fitted into the positioning notch.

[0020] Further, a plurality of avoiding notches are formed on the outer circumferential surface of the shifting wheel, the forward and reverse levers are provided with a cooperating protrusion, the cooperating protrusion is capable of abutting in the avoiding notches or on the outer circumferential surface of the shifting wheel, and with the rotation of the shifting wheel, the cooperating protrusion is capable of reciprocating between the avoiding notches and the outer circumferential surface of the shifting wheel; when the cooperating protrusion abuts in the avoiding notches, the forward and reverse lever set is close to the forward and reverse cam set; when the cooperating protrusion abuts on the outer circumferential surface of the shifting wheel, the forward and reverse lever set is away from the forward and reverse cam set.

[0021] Further, a first lever shaft is fixedly arranged in the housing, the forward and reverse lever set is movably arranged on the first lever shaft, a plurality of gear protrusions with different heights are arranged on the shifting bar, and the gear protrusions are connected by guide slopes, the gear protrusions are capable of abutting on the lower side of the forward and reverse lever set, and with the movement of the shifting bar, the gear protrusions on the lower side of the forward and reverse lever set are capable of being switched to make the forward and reverse lever set ascend or descend along the first lever shaft.

[0022] Further, the positive and reverse rotation cam set further comprises a guide sleeve, the guide sleeve is arranged on the first lever shaft and is hollow, one end of the positive rotation lever and the reverse rotation lever is located in the guide sleeve, one side of the guide sleeve is provided with a swing window, the other end of the positive rotation lever and the reverse rotation lever extends out through the swing window, the positive and reverse rotation cam set is matched with the gear shifting bar through the guide sleeve, a reset spring is further arranged between the top of the guide sleeve and the shell, and the reset spring acts on the guide sleeve so that the whole positive and reverse rotation cam set always has a downward movement trend.

[0023] Further, a second lever shaft is further arranged in the shell, a master control lever is connected to the second lever shaft, a master control cam is further transmissionally connected to the timing main shaft, a stop column is protruded on the escapement swing, and a tongue pressing portion is arranged on the master control lever; the master control lever can be driven by the master control cam to move close to or away from the escapement swing, so that the tongue pressing portion interferes with or is disengaged from the stop column.

[0024] Further, a second spring piece set is further arranged, the second spring piece set comprises a driving spring piece, a driven spring piece and a buzzer spring piece, a buzzer lever is further connected to the second lever shaft, and a buzzer cam is further transmissionally connected to the timing main shaft; the buzzer lever can be driven by the buzzer cam to act on the buzzer spring piece, so that the buzzer spring piece moves close to or away from the driven spring piece, and the buzzer spring piece contacts or is disconnected from the driven spring piece.

[0025] Further, a soaking lever is further connected to the second lever shaft, and a soaking cam is further transmissionally connected to the timing main shaft; the soaking lever can be driven by the soaking cam to act on the driving spring piece, so that the driving spring piece moves close to or away from the driven spring piece, and the driving spring piece contacts or is disconnected from the driven spring piece.

[0026] The assembly mode of the gear shifting mechanism is as follows: when the gear shifting mechanism of the existing washing timer on the market is assembled, the gear shifting bar and the gear shifting wheel need to be in the initial position, and the driven gear below the gear shifting wheel needs to be meshed with the driving rack on the gear shifting bar, so that the driven gear needs to be meshed with the starting end of the driving rack during the installation of the gear shifting bar and the gear shifting wheel, thereby causing high difficulty in relative positioning of the gear shifting bar and the gear shifting wheel during the installation process; the positioning protrusion is further protruded on the starting section of the driving rack on the gear shifting bar in the embodiment, and the positioning gap is further arranged on one side of the driven gear on the gear shifting wheel, so that only the positioning gap on the gear shifting wheel needs to be aligned with the positioning protrusion on the gear shifting bar during the installation process, and the driven gear can be smoothly meshed with the starting end of the driving rack, without the need of excessive position adjustment of the gear shifting wheel and the gear shifting bar, thereby effectively reducing the assembly difficulty of the gear shifting mechanism.

[0027] The washing timer has the advantages that:

[0028] 1. The structure of the transmission mechanism is simplified and the position is adjusted, so that the transmission structure in the whole washing timer is more reasonable, the volume occupied by the transmission structure is reduced, and the purpose of reducing the overall volume of the washing timer is achieved.

[0029] 2. The positioning protrusion is arranged on the shift bar of the shift mechanism, and the positioning notch is arranged on the shift wheel, so that the relative positioning between the shift bar and the shift wheel can be realized by the cooperation of the positioning protrusion and the positioning notch when they are assembled with each other, the time required for subsequent positioning operation is saved, the assembly difficulty of the washing timer is reduced, and the production efficiency is improved.

[0030] 3. The washing timer is additionally provided with a buzzer structure and a soaking structure in addition to the basic shift mechanism and the forward and reverse rotation mechanism, so that the functions of the washing timer are more diversified, and the structure design and distribution are reasonable. BRIEF DESCRIPTION OF DRAWINGS

[0031] Figure 1 is a structural schematic view of the utility model.

[0032] Figure 2 is a schematic view of the internal structure of the utility model.

[0033] Figure 3 is a schematic view of the position relationship between the head wheel, the transmission mechanism, the forward and reverse rotation cam group and the escapement wheel in the utility model.

[0034] Figure 4 is a schematic view of the structure of the forward and reverse rotation mechanism in the utility model.

[0035] Figure 5 is a schematic view of the cooperation between the forward and reverse rotation mechanism and the shift mechanism in the utility model.

[0036] Figure 6 is a schematic view of the structure of the shift mechanism in the utility model.

[0037] Figure 7 is a schematic view of the change of the shift wheel driving the forward and reverse rotation lever group in the utility model.

[0038] Figure 8 is a schematic view of the cooperation between the shift bar, the guide sleeve and the forward and reverse rotation lever group in the utility model.

[0039] Figure 9 is a schematic view of the structure of the escapement mechanism in the utility model.

[0040] Figure 10It is the cooperation schematic view between the second spring piece group, the buzzing lever, the buzzing cam, the soaking lever and the soaking cam in the utility model.

[0041] Figure 11 It is the transmission schematic view between the buzzing cam, the buzzing lever and the buzzing spring piece in the utility model.

[0042] Figure 12 It is the transmission schematic view between the soaking cam, the soaking lever and the driving spring piece in the utility model.

[0043] In the figure, the number: 1, the shell; 11, timing main shaft; 111, head wheel; 12, shift main shaft; 13, first lever shaft; 14, second lever shaft;

[0044] 2, escapement; 21, escapement ratchet; 22, escapement swing; 221, escapement clamp; 222, stop column; 23, master control lever; 231, tongue press; 24, master control cam;

[0045] 3, forward and reverse mechanism; 31, forward and reverse cam group; 311, forward cam; 312, reverse cam; 313, gear step; 314, guide sleeve; 315, reset spring; 316, guide rib; 32, forward and reverse lever group; 321, forward lever; 322, reverse lever; 323, matching protrusion; 33, first spring piece group; 331, conductive spring piece; 332, forward spring piece; 333, reverse spring piece; 334, first spring piece seat;

[0046] 4, transmission mechanism; 41, first transmission gear; 42, second transmission gear; 43, third transmission gear;

[0047] 5, shift mechanism; 51, shift bar; 511, driving rack; 512, positioning protrusion; 513, gear convex; 514, guide slope; 52, shift wheel; 521, driven gear; 522, positioning notch; 523, avoidance notch;

[0048] 6, second spring piece group; 61, driving spring piece; 62, driven spring piece; 63, buzzing spring piece; 64, second spring piece seat; 641, guide groove;

[0049] 7, buzzing lever;

[0050] 8, buzzing cam;

[0051] 9, soaking lever;

[0052] 10, soaking cam. DETAILED DESCRIPTION

[0053] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0054] It should be understood that although the terms upper, middle, lower, top end, one end, etc. appear in the text to describe various elements, these elements are not limited by these terms. These terms are only used to distinguish the elements from each other to facilitate understanding, and are not used to define any direction or sequence limitation.

[0055] Embodiments

[0056] In combination Figures 1 to 12 The structure of the immersion washing timer is compact and convenient to install, comprising a shell 1, a timing main shaft 11, an escapement mechanism 2, a forward and reverse mechanism 3, and a transmission mechanism 4.

[0057] The timing main shaft 11 is rotatably arranged in the shell 1, and a head wheel 111 is drivingly connected to the timing main shaft 11; the escapement mechanism 2 comprises an escapement ratchet wheel 21 and an escapement pendulum 22, the escapement pendulum 22 has an escapement clamp 221 protruding therefrom for cooperating with the escapement ratchet wheel 21; the forward and reverse mechanism 3 comprises a forward and reverse cam set 31; the head wheel 111 is drivingly connected to the escapement ratchet wheel 21 and the forward and reverse cam set 31 through the transmission mechanism 4; the transmission mechanism 4 comprises a first transmission gear 41, a second transmission gear 42, and a third transmission gear 43; the first transmission gear 41 is in meshing engagement with the head wheel 111 and the second transmission gear 42, respectively, the second transmission gear 42 is also in meshing engagement with the third transmission gear 43, and the third transmission gear 43 is also in meshing engagement with the escapement ratchet wheel 21, wherein the second transmission gear 42 is also drivingly connected to the forward and reverse cam set 31; the first transmission gear 41 and the second transmission gear 42 are both located below the escapement ratchet wheel 21, and the third transmission gear 43 is located above the escapement ratchet wheel 21.

[0058] In combination Figure 2 And Figure 4As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322.

[0059] As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322. Figure 4 As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322.

[0060] As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322. Figure 1 Figure 2 As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322. Figure 5 As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322.

[0061] As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322. Figure 6 As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322.

[0062] As shown in FIG. 1, the positive and reverse rotation mechanism 3 further comprises a positive and reverse rotation lever set 32 and a first spring set 33 in the embodiment. The positive and reverse rotation cam set 31 comprises a positive rotation cam 311 and a reverse rotation cam 312. The positive and reverse rotation lever set 32 comprises a positive rotation lever 321 driven by the positive rotation cam 311 and a reverse rotation lever 322 driven by the reverse rotation cam 312. The first spring set 33 comprises a conductive spring 331, a positive rotation spring 332 and a reverse rotation spring 333. The positive rotation spring 332 can be in contact with or disconnected from the conductive spring 331 under the driving of the positive rotation lever 321. The reverse rotation spring 333 can be in contact with or disconnected from the conductive spring 331 under the driving of the reverse rotation lever 322.​Figures 4 to 7 As shown, in the embodiment, the outer circumferential surface of the shift wheel 52 is provided with a plurality of avoiding notches 523, the forward rotation lever 321 and the reverse rotation lever 322 are both provided with a matching protrusion 323, the matching protrusion 323 can abut in the avoiding notches 523 or abut on the outer circumferential surface of the shift wheel 52, and with the rotation of the shift wheel 52, the matching protrusion 323 can reciprocate between the avoiding notches 523 and the outer circumferential surface of the shift wheel 52; when the matching protrusion 323 abuts in the avoiding notches 523, the forward and reverse rotation lever set 32 is close to the forward and reverse cam set 31; when the matching protrusion 323 abuts on the outer circumferential surface of the shift wheel 52, the forward and reverse rotation lever set 32 is away from the forward and reverse cam set 31.

[0063] In combination Figure 5 And Figure 8 As shown, in the embodiment, the first lever shaft 13 is also fixedly arranged in the shell 1, the forward and reverse rotation lever set 32 is movably arranged on the first lever shaft 13, the shift bar 51 is further provided with a plurality of gear position bosses 513 with different heights, and the gear position bosses 513 are connected by guide slopes 514, the gear position bosses 513 can abut on the lower side of the forward and reverse rotation lever set 32, and with the movement of the shift bar 51, the gear position bosses 513 on the lower side of the forward and reverse rotation lever set 32 can be switched, so that the forward and reverse rotation lever set 32 can ascend or descend along the first lever shaft 13.

[0064] In combination Figure 5 And Figure 8 As shown, in the embodiment, the forward and reverse cam set 31 further comprises a guide sleeve 314, the guide sleeve 314 is movably arranged on the first lever shaft 13 and is hollow, one end of the forward rotation lever 321 and the reverse rotation lever 322 is located in the guide sleeve 314, one side of the guide sleeve 314 is provided with a swing window, the other end of the forward rotation lever 321 and the reverse rotation lever 322 extends out through the swing window, the forward and reverse cam set 31 cooperates with the shift bar 51 through the guide sleeve 314, a return spring 315 is further arranged between the top of the guide sleeve 314 and the shell 1, the return spring 315 acts on the guide sleeve 314 so that the entire forward and reverse cam set 31 always has a downward movement trend.

[0065] Among them, as Figure 9As shown in the figure, in the embodiment, a second lever shaft 14 is also arranged in the shell 1, a main control lever 23 is connected to the second lever shaft 14, a main control cam 24 is also drivingly connected to the timing main shaft 11, a stop post 222 is protruded on the escapement swing 22, the main control lever 23 comprises a tongue pressing part 231, and the main control lever 23 can be close to or away from the escapement swing 22 under the driving of the main control cam 24, so that the tongue pressing part 231 interferes with or releases the interference with the stop post 222.

[0066] As shown in the figure, Figure 10 and Figure 11 As shown in the figure, in the embodiment, a second spring group 6 is also arranged, the second spring group 6 comprises a driving spring 61, a driven spring 62 and a buzzer spring 63, a buzzer lever 7 is also connected to the second lever shaft 14, a buzzer cam 8 is also drivingly connected to the timing main shaft 11, the buzzer lever 7 can act on the buzzer spring 63 under the driving of the buzzer cam 8, so that the buzzer spring 63 is close to or away from the driven spring 62, and then the buzzer spring 63 contacts or disconnects with the driven spring 62.

[0067] As shown in the figure, Figure 5 , Figure 8 and Figures 10 to 12 As shown in the figure, in the embodiment, a second spring seat 64 is also arranged in the shell 1, the second spring group 6 is arranged in the second spring seat 64, a guide groove 641 is also arranged on one side of the second spring seat 64, a guide rib 316 is protruded on the outer circumferential surface of the guide sleeve 314, and the guide rib 316 is inserted and matched in the guide groove 641 and can move along the guide groove 641.

[0068] As shown in the figure, Figure 10 and Figure 12 As shown in the figure, in the embodiment, a soaking lever 9 is also connected to the second lever shaft 14, a soaking cam 10 is also drivingly connected to the timing main shaft 11, and the soaking lever 9 can act on the driving spring 61 under the driving of the soaking cam 10, so that the driving spring 61 is close to or away from the driven spring 62, and then the driving spring 61 contacts or disconnects with the driven spring 62.

[0069] Assembly process of the embodiment:

[0070] The assembly of the embodiment is different from other washing timers on the market in the shift mechanism 5, and the assembly process of the remaining mechanisms will not be described here; the shift mechanism 5 of the existing washing timer on the market needs to be assembled in the initial position of the shift bar 51 and the shift wheel 52, and the driven gear 521 below the shift wheel 52 needs to be engaged with the drive rack 511 on the shift bar 51, which causes the difficulty of relative positioning of the shift bar 51 and the shift wheel 52 during installation. The driven gear 521 needs to be engaged with the starting end of the drive rack 511, thereby causing high difficulty in relative positioning of the shift bar 51 and the shift wheel 52 during installation; and the shift bar 51 in the embodiment further has a positioning protrusion 512 at the starting segment of the drive rack 511, and a positioning notch 522 is formed on one side of the driven gear 521 of the shift wheel 52, so that during installation, the positioning notch 522 on the shift wheel 52 only needs to be aligned with the positioning protrusion 512 on the shift bar 51, and the driven gear 521 can be smoothly engaged with the starting end of the drive rack 511, without the need for excessive position adjustment of the shift wheel 52 and the shift bar 51, thereby effectively reducing the assembly difficulty of the shift mechanism 5.

[0071] Timing and execution process of the embodiment:

[0072] First, rotating the timing knob on the timer can drive the timing spindle 11 to rotate, at the same time the head wheel 111 connected to the timing spindle 11 is driven to rotate, in this process the law spring connected to the head wheel 111 is driven to curl and deform and accumulate a certain amount of elastic potential energy, in the process of accumulating potential energy for the law spring, the main control cam 24, the buzzer cam 8 and the soaking cam 10 connected to the timing spindle 11 all rotate by a certain angle, so that the main control lever 23, the buzzer lever 7 and the soaking lever 9 are all away from the gap in the cam and abut on the outer periphery of the cam, at this time the main control lever 23 will swing to make the tongue pressing 231 away from the stop column 222 on the escapement swing 22, so that the escapement swing 22 can swing, and the buzzer reed 63 will swing and push the buzzer reed 63 away from the driven reed 62 to disconnect them, and the soaking reed will push the driving reed 61 away from the driven reed 62 to make them contact each other;

[0073] Then when the timing spindle 11 loses the external force, the law spring begins to release the accumulated potential energy, driving the timing spindle 11 to rotate, at this time, the washing machine is powered on and the washing begins, at this time, since the timing spindle 11 is still connected with the forward and reverse cam set 31 through the transmission mechanism 4, the forward and reverse cam set 31 can rotate while the timing spindle 11 rotates, since the protrusions on the forward and reverse cams 311 and 312 can drive the forward and reverse lever set 32 to swing periodically, and since the positions of the protrusions on the forward and reverse cams 311 and 312 are staggered, the forward and reverse levers 321 and 322 swing alternately, and then the forward and reverse spring leaves 332 and 333 alternately contact the conductive spring leaf 331, so as to control the washing drum of the washing machine to switch between forward rotation and reverse rotation;

[0074] And with the rotation of the timing spindle 11, the main control cam 24, the buzzing cam 8 and the soaking cam 10 also rotate, wherein when the buzzing lever 7 abuts against the outer circumferential surface of the soaking cam 10, the driving spring leaf 61 contacts the passive spring leaf, the circuit in the washing machine is turned on, and the washing drum can rotate normally to wash clothes, and when the cover lever abuts against the notch on the soaking cam 10 with the rotation of the soaking cam 10, the driving spring leaf 61 is separated from the passive spring leaf, so that the circuit in the washing machine is cut off, and the washing drum cannot rotate to soak the clothes being washed, and since the soaking cam 10 is provided with multiple notches, the soaking lever 9 can move back and forth between the outer circumferential surface and the notches of the soaking cam 10, so that the washing machine can switch between washing and soaking, and realize the soaking washing function of the washing machine; when the buzzing cam 8 rotates, the buzzing lever 7 approaches the notch on the buzzing cam 8 and finally abuts against the notch, at this time, the buzzing spring leaf 63 contacts the passive spring leaf, and the washing machine beeps to prompt the end of the washing process; when the main control cam 24 rotates, the main control lever 23 approaches the notch on the main control cam 24 and finally abuts against the notch, at this time, the tongue 231 on the main control lever 23 abuts against the stop column 222 of the escapement swing 22, so as to hinder the swing of the escapement swing 22, and the stop of the escapement swing 22 is transmitted to the escapement ratchet 21 through the escapement clamp 221 to make the escapement ratchet 21 also stop rotating;

[0075] When the potential energy accumulated by the law spring is released, the timing spindle 11 rotates to the original position, at this time, under the action of the buzzing lever 7 and the soaking lever 9, the buzzing spring leaf 63, the passive spring leaf and the driving spring leaf 61 are all disconnected, so that the washing and buzzing of the washing machine are stopped.

[0076] The shift process of the embodiment: in the embodiment, three gear steps 313 are arranged on the positive rotation cam 311 and the reverse rotation cam 312, corresponding to three gears of weak washing, standard washing and strong washing of the washing machine, and when the washing machine needs to shift, the shift knob can be rotated to drive the shift main shaft 12 to rotate, the shift main shaft 12 drives the shift bar 51 to translate, the different gear bosses 513 below the shift bar 51 are moved to below the guide sleeve 314, the guide sleeve 314 is raised or lowered, the guide sleeve 314 drives the positive and reverse lever set 32 to rise or fall, the shift wheel 52 drives the positive and reverse lever set 32 to move away from the positive and reverse cam set 31 in the shift process, so as to avoid the interference between the positive and reverse lever set 32 and the positive and reverse cam set 31, which affects the shift, and after the shift is completed, the positive and reverse lever set 32 is close to the positive and reverse cam set 31 again, and cooperates with the new gear step 313 in the positive and reverse cam set 31, so the shift is completed.

[0077] The advantage of the embodiment is that the transmission structure of the washing timer is compact, so that the overall volume of the timer is reduced, and the assembly and positioning of the transmission mechanism and the switching mechanism are simple, so that the assembly difficulty of the timer is also reduced.

[0078] The above specific embodiments are only an explanation of the utility model, and are not a limitation of the utility model, and the person skilled in the art can make modifications without creative contribution according to the needs after reading the specification, but as long as it is within the scope of the claims of the utility model, it is protected by the patent law.

Claims

1. A compact and easy-to-mount immersion washing timer, characterized by, The utility model relates to a timepiece, which comprises: a housing (1); a timing spindle (11) rotatably arranged in the housing (1), wherein a head wheel (111) is drivingly connected to the timing spindle (11); an escapement mechanism (2) comprising an escapement ratchet (21) and an escapement swing (22), wherein the escapement swing (22) is provided with an escapement claw (221) for cooperating with the escapement ratchet (21); a forward-reverse rotation mechanism (3) comprising a forward-reverse rotation cam set (31); a transmission mechanism (4) for transmitting the rotation of the head wheel (111) to the escapement ratchet (21) and the forward-reverse rotation cam set (31); characterized in that the transmission mechanism (4) comprises a first transmission gear (41), a second transmission gear (42) and a third transmission gear (43); the first transmission gear (41) is in mesh with the head wheel (111) and the second transmission gear (42), the second transmission gear (42) is in mesh with the third transmission gear (43), the third transmission gear (43) is in mesh with the escapement ratchet (21), and the second transmission gear (42) is drivingly connected to the forward-reverse rotation cam set (31); the first transmission gear (41) and the second transmission gear (42) are located below the escapement ratchet (21), and the third transmission gear (43) is located above the escapement ratchet (21).

2. The compact and easy-to-mount immersion washing timer according to claim 1, characterized in that: the forward-reverse rotation mechanism (3) further comprises a forward-reverse rotation lever set (32) and a first spring set (33); the forward-reverse rotation cam set (31) comprises a forward rotation cam (311) and a reverse rotation cam (312), the forward-reverse rotation lever set (32) comprises a forward rotation lever (321) driven by the forward rotation cam (311) and a reverse rotation lever (322) driven by the reverse rotation cam (312), and the first spring set (33) comprises a conductive spring (331), a forward rotation spring (332) and a reverse rotation spring (333); the forward rotation spring (332) can be in contact with or disconnected from the conductive spring (331) under the driving of the forward rotation lever (321), and the reverse rotation spring (333) can be in contact with or disconnected from the conductive spring (331) under the driving of the reverse rotation lever (322).

3. The compact and easy-to-mount immersion washing timer according to claim 2, characterized in that: The gear shifting mechanism (5) comprises a gear shifting bar (51) and a gear shifting wheel (52); a gear shifting main shaft (12) is rotatably arranged in the housing (1), the gear shifting bar (51) is movable in the housing (1) under the drive of the gear shifting main shaft (12), the gear shifting wheel (52) is in transmission with the gear shifting bar (51) and cooperates with the forward and reverse lever set (32); the forward cam (311) and the reverse cam (312) are both provided with a plurality of gear steps (313), the forward lever (321) and the reverse lever (322) can cooperate with the gear steps (313) to realize the transmission with the forward cam (311) and the reverse cam (312); the gear shifting bar (51) can drive the forward and reverse lever set (32) to move, so that the forward lever (321) and the reverse lever (322) cooperate with different gear steps (313), thereby realizing the gear shifting; the gear shifting wheel (52) can drive the forward and reverse lever set (32) to move away from or close to the forward and reverse cam set (31), thereby making the forward lever (321) and the reverse lever (322) disengage from or cooperate with the gear steps (313).

4. The compact and easy-to-mount immersion washing timer according to claim 3, characterized in that: One side of the gear shifting bar (51) is provided with a driving rack (511), the lower side of the gear shifting wheel (52) is provided with a driven gear (521), the driving rack (511) is in mesh with the driven gear (521), and the gear shifting bar (51) is further provided with a positioning protrusion (512) at one end of the driving rack (511), the lower side of the gear shifting wheel (52) is further provided with a positioning notch (522) at the side of the driven gear (521), and the positioning protrusion (512) can be fitted into the positioning notch (522).

5. The compact and easy-to-mount immersion washing timer according to claim 3, characterized in that: The outer circumferential surface of the gear shifting wheel (52) is provided with a plurality of avoiding notches (523), the forward lever (321) and the reverse lever (322) are both provided with a cooperating protrusion (323), the cooperating protrusion (323) can abut in the avoiding notches (523) or abut on the outer circumferential surface of the gear shifting wheel (52), and with the rotation of the gear shifting wheel (52), the cooperating protrusion (323) can be switched back and forth between the avoiding notches (523) and the outer circumferential surface of the gear shifting wheel (52); when the cooperating protrusion (323) abuts in the avoiding notches (523), the forward and reverse lever set (32) is close to the forward and reverse cam set (31); when the cooperating protrusion (323) abuts on the outer circumferential surface of the gear shifting wheel (52), the forward and reverse lever set (32) is away from the forward and reverse cam set (31).

6. The compact and easy-to-mount immersion washing timer according to claim 3, characterized in that: The first lever shaft (13) is arranged in the shell (1), and the forward and reverse lever group (32) is movably arranged on the first lever shaft (13); the gear shifting bar (51) is provided with a plurality of gear position bosses (513) with different heights, and the gear position bosses (513) are connected by guide slopes (514); the gear position bosses (513) are arranged on the lower side of the forward and reverse lever group (32), and the gear position bosses (513) on the lower side of the forward and reverse lever group (32) can be switched when the gear shifting bar (51) moves, so that the forward and reverse lever group (32) can be raised or lowered along the first lever shaft (13).

7. The compact and easy-to-mount immersion washing timer according to claim 6, characterized in that: The forward and reverse cam group (31) further comprises a guide sleeve (314), the guide sleeve (314) is arranged on the first lever shaft (13) and is hollow, one end of the forward lever (321) and the reverse lever (322) is arranged in the guide sleeve (314), one side of the guide sleeve (314) is provided with a swing window, the other end of the forward lever (321) and the reverse lever (322) extends out through the swing window, the forward and reverse cam group (31) cooperates with the gear shifting bar (51) through the guide sleeve (314), a reset spring (315) is arranged between the top of the guide sleeve (314) and the shell (1), and the reset spring (315) acts on the guide sleeve (314) to make the entire forward and reverse cam group (31) always have a downward movement trend.

8. The compact and easy-to-mount immersion washing timer according to claim 1, characterized in that: The second lever shaft (14) is arranged in the shell (1), the main control lever (23) is connected to the second lever shaft (14), the main control cam (24) is drivingly connected to the timing main shaft (11), the stop post (222) is protruded on the escapement swing (22), the main control lever (23) comprises a tongue pressing portion (231), and the main control lever (23) can be close to or away from the escapement swing (22) under the driving of the main control cam (24), so that the tongue pressing portion (231) interferes with or is separated from the stop post (222).

9. The compact and easy-to-mount immersion washing timer according to claim 8, characterized in that: The second spring group (6) comprises a driving spring (61), a driven spring (62) and a buzzer spring (63), the buzzer lever (7) is connected to the second lever shaft (14), the buzzer cam (8) is drivingly connected to the timing main shaft (11), and the buzzer lever (7) can act on the buzzer spring (63) under the driving of the buzzer cam (8), so that the buzzer spring (63) can be close to or away from the driven spring (62), and the buzzer spring (63) can be in contact with or separated from the driven spring (62).

10. The compact and easy-to-mount immersion washing timer according to claim 9, characterized in that: The second lever shaft (14) is further connected with a soaking lever (9), the timing main shaft (11) is further transmission connected with a soaking cam (10), the soaking lever (9) can act on the driving spring leaf (61) under the driving of the soaking cam (10), so that the driving spring leaf (61) is close to or away from the driven spring leaf (62), and then the driving spring leaf (61) is contacted or disconnected with the driven spring leaf (62).

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