An isolated washing machine inner drum locking device

Abstract

The present invention discloses an isolated type washing machine inner drum locking device, comprising an open lower inner drum door, a fixed upper inner drum door and a locking mechanism, wherein the upper end of the open lower inner drum door is provided with a fixed upper inner drum door, and the open lower inner drum door is equipped with a locking mechanism, wherein the locking mechanism comprises a rotating shaft unlocking assembly and a connecting rod locking assembly, wherein the rotating shaft unlocking assembly is movably hinged with the connecting rod locking assembly, and the rotating shaft unlocking assembly comprises an unlocking piece, a limiting protrusion, an unlocking spindle, a core groove, an unlocking seat, a telescopic spring, a long shaft, a pin and a rotating shaft, and a connecting rod locking assembly is provided to realize self-locking of the lower inner drum door, and the fixation is excellent, so that the inner drum door will not shake, and the two inner drum doors will not fall off when the inner drum rotates at a high speed during use, and when it is needed to be opened, the rotating shaft unlocking assembly drives the two ends of the connecting rod locking assembly to contract through rotation, thereby opening the open lower inner drum door, which is safe and convenient, and effectively ensures the overall safety of the device and the stability of operation.

Description

Technical Field

[0001] The invention relates to the technical field of washing machines, and in particular to an isolated washing machine inner drum locking device. Background Art

[0002] The concept of the isolated washing machine is to divide the laundry room into two independent operating areas: the clean area and the non-clean area. The laundry is loaded from the machine door on the non-clean area side, and taken out from the machine door on the clean area side after washing. It prevents cross contamination caused by loading and unloading and discharging of laundry from the non-clean area, and is an ideal washing equipment for dust-free industry and hospital laundry rooms. The sanitary isolated washing machine is fully suitable for pharmaceutical factories, hospitals, sanatoriums, virus and microbiology laboratories, electronics factories, food processing plants, oil platforms and other industries. The existing isolated washing machine has an unreasonable inner drum structure design. The inner drum of the washing machine usually adopts an inner drum door that can be opened up and down. After adding the objects to be cleaned, the two inner drum doors are closed by latches or hooks. When pushing the two inner drum doors, they will still shake against each other, and the fixity is poor. When the inner drum rotates at high speed during use, the two inner drum doors are very easy to fall off, affecting the overall use. Therefore, it is urgent for technicians in this field to design a new type of inner drum locking structure for isolated washing machines. Summary of the invention

[0003] The problem to be solved by the present invention is to provide an isolated washing machine inner drum locking device which is equipped with a connecting rod locking assembly that can self-lock the lower inner drum door and has excellent fixation so that the inner drum door will not shake. When in use, the two inner drum doors will not fall off when the inner drum rotates at high speed. When it needs to be opened, the rotating shaft unlocking assembly drives the two ends of the connecting rod locking assembly to contract through rotation, thereby opening the open lower inner drum door. The device is safe and convenient, and effectively ensures the overall safety of the device and the stability of its operation.

[0004] In order to solve the above problems, the present invention provides an isolated washing machine inner drum locking device, comprising an open lower inner drum door, a fixed upper inner drum door and a locking mechanism, wherein the upper end of the open lower inner drum door is provided with a fixed upper inner drum door, and the open lower inner drum door is provided with a locking mechanism;

[0005] The locking mechanism comprises a rotating shaft unlocking assembly and a connecting rod locking assembly, wherein the rotating shaft unlocking assembly is movably hinged with the connecting rod locking assembly, and the rotating shaft unlocking assembly comprises an unlocking piece, a limiting convex block, an unlocking spindle, a core groove, an unlocking seat, a telescopic spring, a long shaft, a pin and a rotating shaft;

[0006] The unlocking spindle is arranged at one end of the rotating shaft and fixedly connected thereto, the unlocking spindle and the rotating shaft are both arranged at the upper end inside the unlocking seat, a spring groove is arranged in the unlocking seat, a core groove is horizontally opened at the center position of the unlocking spindle, a pin groove which is interconnected with the core groove is opened upward at the bottom end of the unlocking spindle, the spring groove is arranged at the lower end of the pin groove and is adaptively arranged, a positioning ball is fixedly installed at the bottom end of the spring groove, a telescopic spring is fixedly connected to the upper end of the positioning ball, a long shaft is fixedly connected to the upper end of the telescopic spring, a pin is fixedly arranged at the upper end of the long shaft, the upper end of the pin extends upward into the core groove, a limiting protrusion is provided at the bottom end of the unlocking piece, the unlocking piece is inserted in the core groove, and the limiting protrusion is adaptively arranged with the pin.

[0007] Preferably, the connecting rod locking assembly includes a first connecting rod, a second connecting rod, a first pin, a third connecting rod, a fourth connecting rod, a second pin, a first limiting sleeve and a second limiting sleeve, one end of the first connecting rod is obliquely fixedly connected to the rotating shaft, the other end of the first connecting rod is obliquely movably hinged to the second connecting rod, one end of the second connecting rod is provided with a first pin and is obliquely movably hinged thereto, the first pin extends into the first limiting sleeve and extends forward to the positioning groove at one end of the open lower inner cylinder door to fix one end of the open lower inner cylinder door, the other end of the rotating shaft is obliquely fixedly connected to the third connecting rod, the other end of the third connecting rod is obliquely movably hinged to the fourth connecting rod, one end of the fourth connecting rod is provided with a second pin and is obliquely movably hinged thereto, the second pin extends into the second limiting sleeve and extends forward to the positioning groove at the other end of the open lower inner cylinder door to fix the other end of the open lower inner cylinder door.

[0008] Preferably, the unlocking piece is provided with two parts, including an unlocking part arranged at the upper end and a holding and rotating part arranged at the lower end of the unlocking part, the limiting protrusion is arranged at the bottom end of the unlocking part, the unlocking part is movably hinged with the holding and rotating part, and the outer surface of the holding and rotating part is provided with a threaded protrusion.

[0009] Preferably, a micro switch seat is installed at the outer end of the open lower inner cylinder door, a micro switch is installed in the micro switch seat, an unlocking piece limit thread groove is opened on the micro switch seat, and the thread protrusion is connected to the unlocking piece limit thread groove in a rotationally separate manner and contacts the micro switch.

[0010] Preferably, a flange is installed on one side of the fixed upper inner cylinder door, and a main shaft is installed in the fixed upper inner cylinder door, and the main shaft passes through the flange and extends outwards.

[0011] Preferably, the transmission rod is arranged on the open lower inner cylinder door, and a return spring is arranged between the transmission rods.

[0012] The above structure has the following beneficial effects:

[0013] The present invention comprises an open lower inner cylinder door, a fixed upper inner cylinder door and a locking mechanism. The upper end of the open lower inner cylinder door is provided with a fixed upper inner cylinder door, and the open lower inner cylinder door is equipped with a locking mechanism. The locking mechanism can realize self-locking of the open lower inner cylinder door, thereby ensuring the overall fixity of the lock; the locking mechanism comprises a rotating shaft unlocking assembly and a connecting rod locking assembly. The rotating shaft unlocking assembly is movably hinged with the connecting rod locking assembly. The connecting rod locking assembly can realize self-locking of the lower inner cylinder door, and has excellent fixity, so that the inner cylinder door will not shake. When in use, the two inner cylinder doors will not fall off when the inner cylinder rotates at high speed. When it needs to be opened, the rotating shaft unlocking assembly drives the two ends of the connecting rod locking assembly to contract through rotation, thereby opening the open lower inner cylinder door. The invention is safe and convenient, and effectively ensures the overall safety of the device and the stability of operation.

[0014] The rotating shaft unlocking assembly of the present invention comprises an unlocking piece, a limiting convex block, an unlocking spindle, a core groove, an unlocking seat, a telescopic spring, a long shaft, a pin and a rotating shaft; the unlocking spindle is arranged at one end of the rotating shaft and is fixedly connected thereto, the unlocking spindle and the rotating shaft are both arranged at the upper end of the unlocking seat, a spring groove is arranged in the unlocking seat, a core groove is arranged transversely at the center position of the unlocking spindle, a pin groove which is interconnected with the core groove is arranged upward at the bottom end of the unlocking spindle, the spring groove is arranged at the lower end of the pin groove and is adaptively arranged, a positioning ball is fixedly installed at the bottom end of the spring groove, a telescopic spring is fixedly connected to the upper end of the positioning ball, a long shaft is fixedly connected to the upper end of the telescopic spring, and the long shaft is fixedly connected to the upper end of the telescopic spring. A pin is fixed at the upper end, and the upper end of the pin extends upward into the core groove. A limiting protrusion is provided at the bottom end of the unlocking piece, and the unlocking piece is inserted into the core groove. The limiting protrusion and the pin are adaptively arranged. By inserting the unlocking piece into the core groove, the limiting protrusion at the lower end of the unlocking piece presses the pin downward, so that the pin and the long axis and telescopic spring below will shrink downward, so that the unlocking piece can rotate the unlocking spindle, and the unlocking spindle drives the rotating shaft to rotate, thereby driving the two ends of the connecting rod locking assembly to shrink, so that the open lower inner cylinder door is opened. When the open lower inner cylinder door is opened, the position of the unlocking piece can also serve to remind the operator.

[0015] The connecting rod locking assembly of the present invention comprises a first connecting rod, a second connecting rod, a first pin rod, a third connecting rod, a fourth connecting rod, a second pin rod, a first limiting sleeve and a second limiting sleeve, one end of the first connecting rod is obliquely fixedly connected to the rotating shaft, the other end of the first connecting rod is obliquely movably hinged to the second connecting rod, one end of the second connecting rod is provided with a first pin rod and is obliquely movably hinged therewith, the first pin rod extends into the first limiting sleeve and extends forward into the positioning groove at one end of the open lower inner cylinder door to fix one end of the open lower inner cylinder door, the other end of the rotating shaft is obliquely fixedly connected to the third connecting rod, the other end of the third connecting rod is obliquely movably hinged to the fourth connecting rod, one end of the fourth connecting rod is provided with The second pin is hingedly connected with the second pin, and the second pin extends into the second limit sleeve and extends forward to the positioning groove at the other end of the open lower inner cylinder door to fix the other end of the open lower inner cylinder door. The forward rotation of the rotating shaft drives the first connecting rod to drive the second connecting rod and the first pin to retract to one end, thereby moving the first pin out of the positioning groove at one end of the inner cylinder door. The rotating shaft also drives the third connecting rod to drive the fourth connecting rod and the second pin out of the positioning groove at the other end of the inner cylinder door, so that the open lower inner cylinder door is opened. When locking, you only need to close the door and rotate the unlocking piece in the opposite direction to make the rotating shaft rotate in the opposite direction, which is safe and simple.

[0016] The unlocking piece under the open state of the present invention is provided with two parts, including an unlocking part arranged at the upper end and a holding and rotating part arranged at the lower end of the unlocking part, a limiting protrusion is arranged at the bottom end of the unlocking part, the unlocking part and the holding and rotating part are movably hinged, the holding and rotating part can be convenient for the operator to hold and rotate the unlocking piece to ensure the rotation force, a threaded protrusion is arranged on the outer surface of the holding and rotating part, a micro switch seat is arranged at the outer end of the inner cylinder door under the open state, a micro switch is arranged in the micro switch seat, an unlocking piece limiting thread groove is arranged on the micro switch seat, the threaded protrusion is connected to the unlocking piece limiting thread groove in a rotationally separate manner and contacts with the micro switch, the unlocking piece is taken out from the unlocking piece limiting thread groove when in use, and placed on the threaded rotation and fixed to the bottom end of the unlocking piece limiting thread groove when not in use, the micro switch prompts that the unlocking piece has been placed, thereby ensuring the fixity of the unlocking piece in the inner cylinder when in use, and facilitating the placement and removal of the unlocking piece. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the inner drum locking device of an isolated washing machine.

[0018] Figure 2 Schematic diagram of the internal structure of the shaft unlocking assembly.

[0019] Figure 3 It is a schematic diagram of the structure of the unlocking part.

[0020] In the figure: 1-open lower inner cylinder door, 2-fixed upper inner cylinder door, 3-locking mechanism, 301-rotating shaft unlocking assembly, 301-1 unlocking piece, 301-1-1 unlocking part, 301-1-2 holding rotating part, 301-1-3 threaded protrusion, 301-2 limiting protrusion, 301-3 unlocking spindle, 301-4 core groove, 301-5 unlocking seat, 301-6 telescopic spring, 301-7 long axis, 301-8 pin, 301-9 spring groove, 301- 10 positioning ball, 301-11 rotating shaft, 301-12 pin groove, 302-connecting rod locking assembly, 302-1 first connecting rod, 302-2 second connecting rod, 302-3 first pin rod, 302-4 third connecting rod, 302-5 fourth connecting rod, 302-6 second pin rod, 302-7 first limiting sleeve, 302-8 second limiting sleeve, 4-micro switch seat, 5-micro switch, 6-unlocking piece limiting thread groove, 7-spindle, 8-transmission rod, 9-reset spring. DETAILED DESCRIPTION

[0021] The present invention will be further explained below in conjunction with the accompanying drawings and embodiments.

[0022] An isolated washing machine inner drum locking device comprises an open lower inner drum door 1, a fixed upper inner drum door 2 and a locking mechanism 3, wherein the upper end of the open lower inner drum door 1 is provided with the fixed upper inner drum door 2, and the locking mechanism 3 is installed on the open lower inner drum door 1;

[0023] The locking mechanism 3 includes a rotating shaft unlocking assembly 301 and a connecting rod locking assembly 302, wherein the rotating shaft unlocking assembly 301 is movably hinged with the connecting rod locking assembly 302, and the rotating shaft unlocking assembly 301 includes an unlocking piece 301-1, a limiting protrusion 301-2, an unlocking spindle 301-3, a core groove 301-4, an unlocking seat 301-5, a telescopic spring 301-6, a long shaft 301-7, a pin 301-8 and a rotating shaft 301-11;

[0024] The unlocking spindle 301-3 is arranged at one end of the rotating shaft 301-11 and is fixedly connected thereto. The unlocking spindle 301-3 and the rotating shaft 301-11 are both arranged at the upper end of the unlocking seat 301-5. A spring groove 301-9 is arranged in the unlocking seat 301-5. A core groove 301-4 is horizontally opened at the center position of the unlocking spindle 301-3. A pin groove 301-12 which is interconnected with the core groove 301-4 is opened upward at the bottom end of the unlocking spindle 301-3. The spring groove 301-9 is arranged at the lower end of the pin groove 301-12 and is adapted to be arranged. A positioning ball 301-10 is fixedly installed at the bottom end of 01-9, and a telescopic spring 301-6 is fixedly connected to the upper end of the positioning ball 301-10, and a long axis 301-7 is fixedly connected to the upper end of the telescopic spring 301-6, and a pin 301-8 is fixedly provided at the upper end of the long axis 301-7, and the upper end of the pin 301-8 extends upward into the core groove 301-4, and a limiting protrusion 301-2 is provided at the bottom end of the unlocking piece 301-1, and the unlocking piece 301-1 is inserted into the core groove 301-4, and the limiting protrusion 301-2 is adaptively arranged with the pin 301-8.

[0025] The connecting rod locking assembly 302 includes a first connecting rod 302-1, a second connecting rod 302-2, a first pin rod 302-3, a third connecting rod 302-4, a fourth connecting rod 302-5, a second pin rod 302-6, a first limiting sleeve 302-7 and a second limiting sleeve 302-8. One end of the first connecting rod 302-1 is obliquely fixedly connected to the rotating shaft 301-11, and the other end of the first connecting rod 302-1 is obliquely hinged to the second connecting rod 302-2. One end of the second connecting rod 302-2 is provided with a first pin rod 302-3 and is obliquely hinged to the first pin rod 302-3. The first pin rod 302-3 extends to The first limiting sleeve 302-7 is inserted into the positioning groove at one end of the open lower inner cylinder door 1 and extends forward to fix the one end of the open lower inner cylinder door 1. The other end of the rotating shaft 301-11 is obliquely fixedly connected to the third connecting rod 302-4. The other end of the third connecting rod 302-4 is obliquely hinged to the fourth connecting rod 302-5. One end of the fourth connecting rod 302-5 is provided with a second pin rod 302-6 and is obliquely hinged thereto. The second pin rod 302-6 extends into the second limiting sleeve 302-8 and extends forward to the positioning groove at the other end of the open lower inner cylinder door 1 and fixes the other end of the open lower inner cylinder door 1.

[0026] The unlocking piece 301-1 is provided with two parts, including an unlocking part 301-1-1 arranged at the upper end and a holding and rotating part 301-1-2 arranged at the lower end of the unlocking part, the limiting protrusion 301-2 is arranged at the bottom end of the unlocking part 301-1-1, the unlocking part 301-1-1 is movably hinged with the holding and rotating part 301-1-2, and the outer surface of the holding and rotating part 301-1-2 is provided with a threaded protrusion 301-1-3.

[0027] A micro switch seat 4 is installed at the outer end of the open lower inner cylinder door 1, and a micro switch 5 is installed in the micro switch seat 4. An unlocking piece limit thread groove 6 is opened on the micro switch seat 4, and the thread protrusion 301-1-3 is connected to the unlocking piece limit thread groove 6 in a rotationally separate manner and contacts the micro switch 5.

[0028] A flange is installed at one side of the fixed upper inner cylinder door 2. A main shaft 7 is installed inside the fixed upper inner cylinder door 2. The main shaft 7 penetrates the flange and extends outward.

[0029] The transmission rod 8 is arranged on the open lower inner cylinder door 1 , and a return spring 9 is arranged between the transmission rod 8 .

[0030] In order to facilitate understanding of the above technical solutions of the present invention, the above technical solutions of the present invention are described in detail below through specific usage methods.

[0031] The specific working process is as follows: when in use, firstly, the threaded protrusion 301-1-3 at the bottom end of the gripping rotating part 301-1-2 of the unlocking piece 301-1 of the rotating shaft unlocking assembly 301 of the locking mechanism 3 is rotated out from the unlocking piece limiting thread groove 6 of the micro switch seat 4, and then the unlocking piece 301-1 is inserted into the core groove 301-4 of the unlocking core shaft 301-3, and the limiting protrusion 301-2 at the bottom end of the unlocking part 301-1-1 of the unlocking piece 301-1 presses the pin 301-8 downward, so that the pin 301-8 and the long axis 301-7 and the telescopic spring 301-6 below shrink downward, and then the operator holds the gripping rotating part 301-1. 1-1-2 rotates clockwise, so that the unlocking part 301-1-1 rotates the unlocking core shaft 301-3, and the unlocking core shaft 301-3 drives the rotating shaft 301-11 to rotate. The forward rotation of the rotating shaft 301-11 drives the first connecting rod 302-1 of the connecting rod locking assembly 302 to drive the second connecting rod 302-2 and the first pin rod 302-3 to retract to one end, thereby moving the first pin rod 302-3 out of the positioning groove at one end of the open lower inner cylinder door 1, and the other end of the rotating shaft 301-11 also drives the third connecting rod 302-4 to drive the fourth connecting rod 302-5 and the second pin rod 302-6 to move out of the positioning groove at the other end of the open lower inner cylinder door 1 , so that the open lower inner cylinder door 1 is opened, and the operator puts the cleaning object into the open lower inner cylinder door 1. Then the operator holds the holding rotating part 301-1-2 and rotates it counterclockwise, so that the unlocking part 301-1-1 rotates the unlocking spindle 301-3, and the unlocking spindle 301-3 drives the rotating shaft 301-11 to rotate. The forward rotation of the rotating shaft 301-11 drives the first connecting rod 302-1 of the connecting rod locking assembly 302 to drive the second connecting rod 302-2 and the first pin rod 302-3 to extend to one end, so that the first pin rod 302-3 extends forward from the first limiting sleeve 302-7 to the positioning groove at one end of the open lower inner cylinder door 1 At the same time, the other end of the rotating shaft 301-11 also drives the third connecting rod 302-4 to drive the fourth connecting rod 302-5 and the second pin rod 302-6 to extend forward from the second limiting sleeve 302-8 to the positioning groove at one end of the open lower inner cylinder door 1 to complete the locking. Then the unlocking piece 301-1 is taken out from the core groove 301-4 of the unlocking spindle 301-3, and the threaded protrusion 301-1-3 at the bottom end of the holding rotating part 301-1-2 of the unlocking piece 301-1 is rotated and screwed into the unlocking piece limiting thread groove 6 of the micro switch seat 4. After the bottom end of the threaded protrusion 301-1-3 contacts the micro switch 5, the micro switch 4 prompts that it has been tightened and washing is carried out.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present invention. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0033] It should be noted that, in the present invention, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0034] The above description is only a specific embodiment of the present invention, so that those skilled in the art can understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but should conform to the widest scope consistent with the principles and novel features invented herein.

Claims

1. An isolated washing machine inner drum locking device, characterized in that: It comprises an open lower inner cylinder door (1), a fixed upper inner cylinder door (2) and a locking mechanism (3), wherein the upper end of the open lower inner cylinder door (1) is provided with the fixed upper inner cylinder door (2), and the locking mechanism (3) is mounted on the open lower inner cylinder door (1); The locking mechanism (3) comprises a rotating shaft unlocking assembly (301) and a connecting rod locking assembly (302); the rotating shaft unlocking assembly (301) and the connecting rod locking assembly (302) are movably hinged; the rotating shaft unlocking assembly (301) comprises an unlocking piece (301-1), a limiting protrusion (301-2), an unlocking spindle (301-3), a core groove (301-4), an unlocking seat (301-5), a telescopic spring (301-6), a long shaft (301-7), a pin (301-8) and a rotating shaft (301-11); The unlocking spindle (301-3) is arranged at one end of the rotating shaft (301-11) and is fixedly connected thereto; the unlocking spindle (301-3) and the rotating shaft (301-11) are both arranged at the upper end of the unlocking seat (301-5); a spring groove (301-9) is arranged in the unlocking seat (301-5); a core groove (301-4) is horizontally opened at the center of the unlocking spindle (301-3); a pin groove (301-12) communicating with the core groove (301-4) is upwardly opened at the bottom end of the unlocking spindle (301-3); the spring groove (301-9) is arranged at the lower end of the pin groove (301-12) and is adaptively arranged; the spring groove (301-9) is arranged at the lower end of the pin groove (301-12) and is adaptively arranged; 1-9) A positioning ball (301-10) is fixedly mounted at the bottom end, a telescopic spring (301-6) is fixedly connected to the upper end of the positioning ball (301-10), a long shaft (301-7) is fixedly connected to the upper end of the telescopic spring (301-6), a pin (301-8) is fixedly mounted to the upper end of the long shaft (301-7), the upper end of the pin (301-8) extends upward into the core groove (301-4), a limiting protrusion (301-2) is provided at the bottom end of the unlocking member (301-1), the unlocking member (301-1) is plugged into the core groove (301-4), and the limiting protrusion (301-2) and the pin (301-8) are adaptively arranged; The connecting rod locking assembly (302) comprises a first connecting rod (302-1), a second connecting rod (302-2), a first pin rod (302-3), a third connecting rod (302-4), a fourth connecting rod (302-5), a second pin rod (302-6), a first limiting sleeve (302-7) and a second limiting sleeve (302-8), one end of the first connecting rod (302-1) is obliquely fixedly connected to the rotating shaft (301-11), the other end of the first connecting rod (302-1) is obliquely hinged to the second connecting rod (302-2), one end of the second connecting rod (302-2) is provided with a first pin rod (302-3) and is obliquely hinged to the first pin rod (302-3), and the first pin rod (302-3) is fixedly connected to the rotating shaft (301-11) at one end. ) extends into the first limiting sleeve (302-7) and extends forward to the positioning groove at one end of the open lower inner cylinder door (1) to fix the one end of the open lower inner cylinder door (1); the other end of the rotating shaft (301-11) is obliquely fixedly connected to the third connecting rod (302-4); the other end of the third connecting rod (302-4) is obliquely hinged to the fourth connecting rod (302-5); one end of the fourth connecting rod (302-5) is provided with a second pin rod (302-6) and is obliquely hinged to the fourth connecting rod (302-5); the second pin rod (302-6) extends into the second limiting sleeve (302-8) and extends forward to the positioning groove at the other end of the open lower inner cylinder door (1) to fix the other end of the open lower inner cylinder door (1); The unlocking member (301-1) is provided with two parts, including an unlocking part (301-1-1) arranged at the upper end and a holding rotating part (301-1-2) arranged at the lower end of the unlocking part, the limiting protrusion (301-2) is arranged at the bottom end of the unlocking part (301-1-1), the unlocking part (301-1-1) and the holding rotating part (301-1-2) are movably hinged, and the outer surface of the holding rotating part (301-1-2) is provided with a threaded protrusion (301-1-3).

2. The locking device for the inner drum of an isolated washing machine according to claim 1, characterized in that: A micro switch seat (4) is mounted on the outer end of the open lower inner cylinder door (1), a micro switch (5) is mounted in the micro switch seat (4), an unlocking piece limit thread groove (6) is formed on the micro switch seat (4), and the thread protrusion (301-1-3) is connected to the unlocking piece limit thread groove (6) in a rotationally separable manner and contacts the micro switch (5).

3. The locking device for the inner drum of an isolated washing machine according to claim 1, characterized in that: A flange is installed on one side of the fixed upper inner cylinder door (2), and a main shaft (7) is installed inside the fixed upper inner cylinder door (2), wherein the main shaft (7) passes through the flange and extends outwards.

4. The locking device for the inner drum of an isolated washing machine according to claim 1, characterized in that: A transmission rod (8) is arranged on the open lower inner cylinder door (1), and a return spring (9) is arranged between the transmission rod (8).

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