Door lock assembly and dishwasher with automatic door opening and closing function

Abstract

The present invention discloses a door lock assembly and a dishwasher with an automatic door opening and closing function, comprising a lock tongue assembly and a lock catch assembly, wherein the lock tongue assembly is mounted on the cabinet of the dishwasher, and the lock catch assembly is mounted on the door body of the dishwasher; the lock tongue assembly comprises a housing, a telescopic rod, a driving motor and a transmission assembly, wherein the telescopic rod is slidably connected to the housing, and the driving motor is used to drive the telescopic rod to slide, and the transmission is realized through the transmission assembly; the front end of the telescopic rod extends out of the housing, and is fixedly provided with a lock tongue portion, wherein the lock tongue portion can extend into the lock catch assembly and be mutually locked with the lock catch assembly; the sliding direction of the telescopic rod is along the front-to-back direction of the dishwasher, and is tilted downward toward the front end direction. The present invention solves the problem that the current dishwasher door lock assembly occupies a large space and is difficult to be configured in a dishwasher with an ultra-thin door body.

Description

Technical Field

[0001] The present invention relates to a dishwasher, and more particularly to a door lock assembly with an automatic door opening and closing function, and also to a dishwasher with the door lock assembly. Background Art

[0002] In the current dishwasher door lock structure, most of the door lock components are fixed in the door body component, and the door lock buckle used to lock the door lock is generally fixed on the machine body. The door lock component and the door lock buckle work together to achieve the locking function. Since most of the dishwasher door lock components are located in the door body, it will occupy a large installation space in the door body component, and the door body needs to be thick enough to be installed, which is not suitable for thinner doors.

[0003] If the door needs to be opened automatically, a power mechanism for opening the door needs to be installed in the dishwasher. At present, the power mechanism for opening the door of the dishwasher is usually independent of the door lock assembly, so it also takes up additional installation space. Moreover, the current dishwasher door lock assembly does not have the function of automatically opening and closing the door, but only serves as a component for sensing the opening and closing of the dishwasher door, which cannot meet the use needs of the dishwasher.

[0004] Therefore, a new solution needs to be proposed to solve this problem. Summary of the invention

[0005] The object of the present invention is to overcome the above-mentioned deficiencies of the prior art and to provide a door lock assembly and a dishwasher with automatic door opening and closing functions.

[0006] In order to achieve the above object, the present invention adopts the following technical solution:

[0007] A door lock assembly with an automatic door opening and closing function comprises a lock tongue assembly and a lock catch assembly, wherein the lock tongue assembly is mounted on a cabinet of a dishwasher, and the lock catch assembly is mounted on a door body of the dishwasher; the lock tongue assembly comprises a shell, a telescopic rod, a driving motor and a transmission assembly, wherein the telescopic rod is slidably connected to the shell, and the driving motor is used to drive the telescopic rod to slide, and the transmission is realized through the transmission assembly; the front end of the telescopic rod extends out of the shell, and is fixedly provided with a lock tongue portion, wherein the lock tongue portion can extend into the lock catch assembly and be locked with the lock catch assembly; the sliding direction of the telescopic rod is along the front-to-back direction of the dishwasher, and is inclined downward toward the front end direction.

[0008] The present invention is further configured such that the transmission assembly includes a worm gear mechanism and a gear mechanism, the worm gear mechanism and the gear mechanism are transmission connected to each other, the worm gear mechanism is transmission connected to a drive motor, a rack portion is provided on the outer side of the telescopic rod, and the gear mechanism is transmission connected to the rack portion.

[0009] The present invention is further configured such that the lock tongue assembly also includes sensor 1 and sensor 2, and the sensor 1 and sensor 2 are arranged in a shell along the sliding direction of the telescopic rod, and the shell is provided with a sensing part 1 and a sensing part 2. During the sliding process of the telescopic rod, the sensing part 1 can sense and adapt with the sensor 1, and the sensing part 2 can sense and adapt with the sensor 2, which are respectively used to limit the sliding stroke of the telescopic rod.

[0010] The present invention is further configured such that the locking assembly includes a locking bracket, two locking parts and two springs. The two locking parts are connected to the locking bracket in an anti-slip manner along the left and right sides of the dishwasher. The two springs act elastically on the two locking parts respectively to elastically drive the two locking parts to have a tendency to approach each other.

[0011] The present invention is further configured such that a locking gap is formed between the two locking parts, the locking gap and the locking tongue portion are adapted to each other, the locking tongue portion can be embedded in the locking gap and locked with the two locking parts; the height of the locking gap in the up and down directions is greater than the locking tongue portion, and the locking tongue portion can be moved up and down and adjusted within the locking gap.

[0012] The present invention is further configured such that the lock assembly also includes a linkage block and a sensor three, the linkage block is located at the lower side of the two lock parts, and part of the linkage block extends upward into the locking gap between the two lock parts; the linkage block can move relative to the lock bracket along the front and rear direction of the dishwasher; a protrusion is fixedly connected to the lower side of the lock tongue part, and when the lock tongue part extends into the locking gap, the protrusion abuts against the linkage block and can trigger the sensor three.

[0013] The present invention is further configured such that the lock assembly also includes a linkage rod and a second spring, the linkage rod being slidably connected to the lock bracket along the left and right directions of the dishwasher, a linkage inclined surface being formed on the side of the linkage rod facing the linkage block, the linkage block being able to be pressed and linked with the linkage inclined surface, and the side of the linkage rod facing away from the linkage block being able to trigger the third sensor; the second spring elastically acts on the linkage rod and has an elastic tendency toward one side of the linkage block.

[0014] The present invention is further configured such that the door body of the dishwasher comprises a mounting frame, the mounting frame is provided with a sliding frame, and the lower side of the linkage block is slidably connected to the sliding frame.

[0015] The present invention is further configured such that the telescopic stroke of the telescopic rod is greater than 5 cm, and the inclination trend of the telescopic rod is 3-8 degrees downwardly inclined toward the front end.

[0016] The present invention also provides a dishwasher, comprising a cabinet, a door body and the above-mentioned door lock assembly, wherein the lock tongue assembly is installed on the top of the cabinet, the lock catch assembly is installed in the upper edge of the door body, and the lower side of the door body is hinged to the cabinet. The door body can be locked by the door lock assembly, and the door body can be automatically opened and closed.

[0017] In summary, the present invention has the following beneficial effects:

[0018] Through the cooperation between the door lock assembly and the lock catch assembly of the dishwasher, the dishwasher door can be locked and the state of the door opening and closing can be sensed. In addition, in the door lock assembly, the telescopic rod can be controlled to achieve telescopic movement. By extending the telescopic rod forward, the lock catch assembly and the door body can be pushed to move, and the door body can be driven to open; by retracting the telescopic rod successively, the lock catch assembly and the door body can be driven to move, and the door body can be driven to close; in the process of the telescopic rod extending and retracting to realize the automatic opening and closing of the door body, the lock tongue part and the lock catch assembly are still in the locked state, and the transmission is carried out through the elastic locking structure between the lock tongue part and the lock catch part.

[0019] By setting the sliding direction of the telescopic rod to an inclined direction, the sliding direction of the telescopic rod is inclined downward toward the front end; when the telescopic rod is extended forward, the lock tongue part at the front end of the telescopic rod can produce a height difference change, so that it can adapt to the height difference change between the upper edge of the door body and the lock component, ensuring that the lock tongue part can adapt to the lock component and always maintain an elastic locked state; the lock tongue part can be adjusted up and down within the locking gap, and through the adaptive adjustment of the lock tongue part, it can be ensured that the lock tongue part can be stably in a locked state, keeping the lock tongue part and the two lock parts stably elastically locked, thereby enabling the lock tongue part at the front end of the telescopic rod to adapt to the action of greatly opening the door body. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 is a schematic structural diagram of a dishwasher in this embodiment;

[0021] Figure 2 is a three-dimensional diagram of a door lock assembly with automatic door opening and closing function in this embodiment;

[0022] Figure 3 is a cross-sectional view of a door lock assembly with an automatic door opening and closing function in this embodiment;

[0023] Figure 4 Schematic diagram of the internal structure of the lock tongue assembly in this embodiment;

[0024] Figure 5 is an exploded view of the lock assembly in this embodiment;

[0025] Figure 6 for Figure 5 Middle partial enlarged picture;

[0026] Figure 7 Schematic diagram of the installation structure of the lock assembly in this embodiment;

[0027] Figure 8 It is a cross-sectional view of the locking tongue assembly in this embodiment.

[0028] Figure numerals: lock tongue assembly 1; housing 10; telescopic rod 11; lock tongue part 111; rack part 112; induction part one 113; induction part two 114; protrusion 115; drive motor 12; transmission assembly 13; worm gear mechanism 131; gear mechanism 132; worm member 1301; gear one 1302; gear two 1303; gear three 1304; sensor one 141; sensor two 142; lock assembly 2; lock bracket 20; lock member 21; locking gap 211; spring one 22; linkage block 23; linkage rod 24; linkage inclined surface 241; sensor three 25; spring two 26; connection part one 261; connection part two 262; chassis 3; door body 4; mounting frame 41; sliding frame 411. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] This embodiment discloses a door lock assembly with automatic door opening and closing function. Figure 1-Figure 8 As shown, the dishwasher comprises a locking tongue assembly 1 and a locking catch assembly 2. The locking tongue assembly 1 is mounted on the top of the dishwasher cabinet 3, and the locking catch assembly 2 is mounted in the upper edge of the dishwasher door body 4. The mounting positions of the locking tongue assembly 1 and the locking catch assembly 2 are relatively corresponding and adapted, and the door body 4 can be locked by the locking tongue assembly 1 and the locking catch assembly 2.

[0031] Reference Figure 2-Figure 4 As shown, the bolt assembly 1 includes a housing 10, a telescopic rod 11, a drive motor 12 and a transmission assembly 13, and the telescopic rod 11 is slidably connected to the housing 10. The drive motor 12 and the transmission assembly 13 are installed in the housing 10, and the drive motor 12 is used to drive the telescopic rod 11 to slide, and realize transmission through the transmission assembly 13.

[0032] The front end of the telescopic rod 11 extends out of the housing 10 and is fixedly connected to a locking tongue portion 111. The locking tongue portion 111 is an integrally formed structure with the telescopic rod 11, and the locking tongue portion 111 can extend into the lock assembly 2 and lock with the lock assembly 2. In addition, the telescopic action of the telescopic rod 11 can drive the door body 4 to open and close. When the telescopic rod 11 extends toward the front side of the dishwasher, it can push the door body 4 forward to open the door body 4. When the telescopic rod 11 retracts, it can drive the door body 4 to move backward to close the door body 4.

[0033] The transmission assembly 13 includes a worm gear mechanism 131 and a gear mechanism 132, which are connected to each other. The worm gear mechanism 131 is connected to the drive motor 12, and can transmit the power output by the drive motor 12 to the transmission assembly 13; a rack portion 112 is arranged on the outer side of the telescopic rod 11, and the gear mechanism 132 is connected to the rack portion 112, and can output power to the telescopic rod 11, so as to realize the sliding drive of the telescopic rod 11 and the telescopic action of the telescopic rod 11.

[0034] Specifically, the transmission assembly 13 is divided into four parts: a worm member 1301, a gear 1 1302, a gear 2 1303 and a gear 3 1304. The worm member 1301 is installed outside the rotating shaft of the driving motor 12, and the gear 1 1302, the gear 2 1303 and the gear 3 1304 each have two coaxially fixed gear parts, which can respectively realize torque input and output. One of the gear parts of the gear 1 1302 is meshed and matched with the worm member 1301, and the toothed structure can adaptively mesh and transmit to form a worm gear mechanism 131; the other gear part of the gear 1 1302 is meshed and transmitted with the gear 2 1303, the gear 2 1303 is meshed and transmitted with the gear 3 1304, and the gear 3 1304 can mesh and transmit with the rack part 112 outside the telescopic rod 11, so as to realize the sliding drive of the telescopic rod 11.

[0035] In order to realize the travel control of the telescopic rod 11, the bolt assembly 1 further includes a sensor 1 141 and a sensor 2 142. The sensor 1 141 and the sensor 2 142 are arranged in the housing 10 along the sliding direction of the telescopic rod 11, and the housing 10 is provided with a sensor part 1 113 and a sensor part 2 114. During the sliding process of the telescopic rod 11, the sensor part 1 113 can sense and adapt with the sensor 1 141, and the sensor part 2 114 can sense and adapt with the sensor 2 142, respectively used to limit the sliding travel of the telescopic rod 11.

[0036] Specifically, the sensor 1 141 and the sensor 2 142 are both micro switches, and the sensing part 1 13 and the sensing part 2 114 are protrusions fixed on the outside of the telescopic rod 11, and the orientation positions of the protrusions are mutually adapted to the sensor 1 141 and the sensor 2 142. When the telescopic rod 11 slides toward the front end of the dishwasher, the sensing part 2 114 can trigger the sensor 2 142 to send out a sensing signal to determine that the telescopic rod 11 has been extended to the front end of the stroke position, and can control the drive motor 12 to stop; when the telescopic rod 11 slides toward the rear end of the dishwasher, the sensing part 1 113 can trigger the sensor 1 141 to send out a sensing signal to determine that the telescopic rod 11 has been retracted to the rear end of the stroke position, and can control the drive motor 12 to stop.

[0037] Reference Figure 2 , Figure 3 , Figure 5-Figure 7 As shown, the lock assembly 2 includes a lock bracket 20, two lock members 21 and two springs 22. The two lock members 21 are connected to the lock bracket 20 along the left and right anti-slip sliding of the dishwasher. The two springs 22 elastically act on the two lock members 21 respectively, elastically driving the two lock members 21 to have a tendency to approach each other.

[0038] A locking gap 211 is formed between the two locking members 21, and the locking gap 211 and the locking tongue portion 111 are adapted to each other. The locking tongue portion 111 can be embedded in the locking gap 211 and locked with the two locking members 21. In order to facilitate the locking of the locking tongue portion 111 and the locking member 21, guide surfaces can be formed at the pressing contact positions of the locking tongue portion 111 and the locking member 21. When the locking tongue portion 111 extends between the two locking members 21, the two locking members 21 can be pushed to slide away from each other in the left and right directions until the locking tongue portion 111 is in place. The two springs 1 22 can push the two locking members 21 to move closer to each other, so as to achieve elastic locking of the locking tongue portion 111.

[0039] The lock assembly 2 further includes a linkage block 23 and a sensor 3 25. The linkage block 23 is located at the lower side of the two lock members 21, and a portion of the linkage block 23 extends upward into the locking gap 211 between the two lock members 21. The door body 4 of the dishwasher includes a mounting frame 41, which is fixedly connected to a sliding frame 411, and the lower side of the linkage block 23 is slidably connected to the sliding frame 411. Through the sliding guide of the sliding frame 411, the linkage block 23 can move relative to the lock bracket 20 along the front and rear direction of the dishwasher.

[0040] The upper part of the linkage block 23 can extend into the locking gap 211 between the two lock members 21. A protrusion 115 is fixedly connected to the lower side of the lock tongue portion 111, and the position of the protrusion 115 matches the position of the linkage block 23. When the lock tongue portion 111 extends into the locking gap 211, the protrusion 115 abuts against the linkage block 23. When the lock tongue portion 111 is locked in place in the lock assembly 2, the linkage block 23 can push the linkage rod 24, so that the linkage rod 24 can trigger the sensor 3 25.

[0041] In addition, the locking assembly 2 also includes a linkage rod 24 and a spring 26. The linkage rod 24 is connected to the locking bracket 20 for sliding along the left and right directions of the dishwasher. A left-right sliding groove can be opened on the linkage rod 24, which is slidably matched with the slider of the locking bracket 20 to realize sliding guidance of the linkage rod 24.

[0042] A linkage slope 241 is formed on the side of the linkage rod 24 facing the linkage block 23, and the linkage block 23 can be pressed and linked with the linkage slope 241. The side of the linkage rod 24 facing away from the linkage block 23 can trigger the sensor three 25. When the lock tongue part 111 is inserted into the lock assembly 2, after being inserted to a certain depth, the protrusion 115 on the lower side of the lock tongue part 111 can push the linkage block 23 and drive the linkage block 23, and then the linkage block 23 is pressed against the sensing position of the sensor three 25, triggering the sensor three 25 and sending a signal that the door is locked.

[0043] The second spring 26 elastically acts on the linkage rod 24, and has an elastic tendency toward one side of the linkage block 23. The second spring 26 can be a tension spring, and the lock bracket 20 is fixedly connected with a connection part 1 261, and the linkage rod 24 is fixedly connected with a connection part 262. The two ends of the second spring 26 are respectively connected to the connection part 1 261 and the connection part 2 262, and can apply an elastic restoring force to the linkage rod 24. After the lock tongue part 111 leaves the lock tongue assembly 1, the second spring 26 will elastically push the linkage rod 24 and the linkage block 23 to reset, and no longer trigger the sensor 3 25, indicating that the door body 4 is in an open state.

[0044] When the door 4 of the dishwasher is closed, the telescopic rod 11 of the lock tongue assembly 1 is in a retracted state, and the lock tongue portion 111 will be inserted into the lock assembly 2, overcoming the spring 1 22 pushing the lock catch 21 to expand outward, and the lock tongue portion 111 will be inserted between the two lock catches 21 until they are locked in place, and the spring 1 22 will push the lock catch 21 together to lock the lock tongue portion 111. At the same time, the protrusion 115 on the lower side of the lock tongue portion 111 can push the linkage block 23 of the lock catch assembly 2, and the linkage block 23 and the linkage rod 24 are linked to each other, which can trigger the sensor 3 25 and send a signal that the door 4 of the dishwasher is closed.

[0045] When the door 4 of the dishwasher is opened, the lock tongue assembly 1 moves away from the lock tongue portion 111, and the lock tongue portion 111 moves away from between the two locking members 21, overcoming the spring 1 22 that pushes the locking members 21 to expand outward until the lock tongue portion 111 is pulled out; at the same time, the spring 2 26 elastically pushes the linkage rod 24 and the linkage block 23 to reset, and the sensor 3 25 is no longer triggered, indicating that the door 4 is in an open state.

[0046] When the door body 4 is closed, that is, the lock tongue portion 111 and the lock catch assembly 2 are locked, the telescopic rod 11 is extended forward to push the door body 4 to move in the forward direction, that is, the door body 4 can be opened. At this time, the lock tongue portion 111 and the lock catch assembly 2 are still in a locked state; the telescopic rod 11 is retracted backward to drive the door body 4 to move in the closing direction, that is, the door body 4 can be closed. At this time, the lock tongue portion 111 and the lock catch assembly 2 are still in a locked state, and the transmission is carried out through the elastic locking structure between the lock tongue portion 111 and the lock catch 21.

[0047] During the process of automatic opening and closing of the door body 4, if the door body 4 is manually opened, at this time, the sensor 2 142 will stop triggering and can send a signal to the controller of the dishwasher that the door body 4 of the dishwasher is opened; at this time, the lock tongue assembly 1 is controlled by a preset program to retract the telescopic rod 11 to the innermost end until the sensing part 113 and the sensor 1 141 trigger the sensing signal and retract to the predetermined position.

[0048] In this embodiment, the telescopic stroke of the telescopic rod 11 is greater than 5 cm, generally 10 cm, for example 8 cm. The telescopic rod 11 is pushed out toward the front side of the dishwasher, so that the door body 4 can be pushed to open to a larger angle.

[0049] When the door 4 of the dishwasher is opened, the door 4 rotates from an upright state to an inclined state. When the door 4 is opened to a small extent, the lock assembly 2 on the upper side of the door 4 moves approximately along the tangent direction, and the height of the lock assembly 2 does not change substantially.

[0050] If the door body 4 is opened to a large extent, generally when the upper side of the door body 4 is opened to a greater extent than 5 cm, the upper edge of the door body 4 will have a significant height change, that is, the height position of the lock assembly 2 will have a drop change. The lock tongue portion 111 of the telescopic rod 11 may interfere with the lock assembly 2, which may cause the lock assembly 2 and the lock tongue portion 111 to get stuck, affecting the normal opening and closing of the door body 4.

[0051] Reference Figure 8 As shown, the telescopic rod 11 is slidably connected in the shell 10, and mutually adaptive guide ribs and guide grooves are arranged between the inner wall of the shell 10 and the telescopic rod 11, which can guide the telescopic direction of the telescopic rod 11 and ensure that the telescopic rod 11 can slide stably along the sliding trajectory.

[0052] The sliding direction of the telescopic rod 11 is along the front-to-back direction of the dishwasher and is inclined downward toward the front end. When the telescopic rod 11 is extended forward, the locking tongue portion 111 at the front end of the telescopic rod 11 will also produce an adaptive height change, so that the locking tongue portion 111 can always be stably engaged between the two locking members 21 of the locking assembly 2 to maintain an elastic locking state.

[0053] In this embodiment, the telescopic rod 11 is inclined downwardly toward the front end at an angle of 3-8°.

[0054] Furthermore, the locking gap 211 of the two locking members 21 has a height in the vertical direction greater than that of the locking tongue portion 111, and the upper side of the locking gap 211 is substantially open, and is only limited by the position of the lock hole of the door body 4. The locking tongue portion 111 can be adjusted up and down in the locking gap 211, and the adaptive adjustment of the locking tongue portion 111 can ensure that the locking tongue portion 111 can be stably in a locked state, and the locking tongue portion 111 and the two locking members 21 are kept stably elastically locked.

[0055] Since the linkage block 23 is located at the lower side of the two locking members 21, during the opening process of the door body 4, the upper edge of the door body 4 will be slightly displaced downward, and the locking assembly 2 and the internal linkage block 23 will also be displaced downward. During the opening process of the door body 4, the linkage block 23 will not interfere with the lock tongue portion 111 on the upper side of the protrusion 115, thereby ensuring that the protrusion 115 on the lower side of the lock tongue portion 111 can be stably pressed against the linkage block 23, thereby ensuring that the sensor three 25 can be stably triggered.

[0056] This embodiment also discloses a dishwasher, referring to Figure 1 As shown, it includes a chassis 3, a door body 4 and a door lock assembly as in the above embodiment, a bolt assembly 1 is installed on the top of the chassis 3, a lock assembly 2 is installed in the upper edge of the door body 4, and the lower side of the door body 4 is hinged to the chassis 3. The door body 4 can be locked by the door lock assembly, and the door body 4 can be opened and closed automatically.

[0057] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A door lock assembly with automatic door opening and closing function, characterized in that: The invention comprises a locking tongue assembly (1) and a locking catch assembly (2), wherein the locking tongue assembly (1) is mounted on a cabinet (3) of a dishwasher, and the locking catch assembly (2) is mounted on a door body (4) of the dishwasher; the locking tongue assembly (1) comprises a housing (10), a telescopic rod (11), a driving motor (12) and a transmission assembly (13); the telescopic rod (11) is slidably connected to the housing (10), and the driving motor (12) is used to drive the telescopic rod (11) to slide, and realize transmission through the transmission assembly (13); the front end of the telescopic rod (11) extends out of the housing (10), and is fixedly provided with a locking tongue portion (111), and the locking tongue portion (111) can extend into the locking catch assembly (2) and be mutually locked with the locking catch assembly (2); the sliding direction of the telescopic rod (11) is along the front-to-back direction of the dishwasher, and is inclined downward toward the front end direction.

2. The door lock assembly with automatic door opening and closing function according to claim 1, characterized in that: The transmission assembly (13) comprises a worm gear mechanism (131) and a gear mechanism (132), the worm gear mechanism (131) and the gear mechanism (132) being transmission-connected to each other, the worm gear mechanism (131) being transmission-connected to a driving motor (12), a rack portion (112) being arranged on the outer side of the telescopic rod (11), and the gear mechanism (132) being transmission-connected to the rack portion (112).

3. The door lock assembly with automatic door opening and closing function according to claim 1, characterized in that: The locking tongue assembly (1) further comprises a sensor 1 (141) and a sensor 2 (142), wherein the sensor 1 (141) and the sensor 2 (142) are arranged in the housing (10) along the sliding direction of the telescopic rod (11), and the housing (10) is provided with a sensor part 1 (113) and a sensor part 2 (114), and when the telescopic rod (11) is sliding, the sensor part 1 (113) can be inductively matched with the sensor 1 (141), and the sensor part 2 (114) can be inductively matched with the sensor 2 (142), and they are respectively used to limit the sliding stroke of the telescopic rod (11).

4. The door lock assembly with automatic door opening and closing function according to claim 1, characterized in that: The lock assembly (2) comprises a lock bracket (20), two lock members (21) and two springs (22); the two lock members (21) are connected to the lock bracket (20) in a non-slip sliding manner along the left and right sides of the dishwasher; the two springs (22) elastically act on the two lock members (21) respectively, and are used to elastically drive the two lock members (21) to have a tendency to approach each other.

5. The door lock assembly with automatic door opening and closing function according to claim 4, characterized in that: A locking gap (211) is formed between the two locking members (21); the locking gap (211) and the locking tongue portion (111) are adapted to each other; the locking tongue portion (111) can be embedded in the locking gap (211) and locked with the two locking members (21); the height of the locking gap (211) in the vertical direction is greater than that of the locking tongue portion (111); and the locking tongue portion (111) can be adjusted upward and downward in the locking gap (211).

6. The door lock assembly with automatic door opening and closing function according to claim 5, characterized in that: The lock assembly (2) further comprises a linkage block (23) and a sensor three (25); the linkage block (23) is located at the lower side of the two lock members (21), and a portion of the linkage block (23) extends upward into a locking gap (211) between the two lock members (21); the linkage block (23) can move relative to the lock bracket (20) along the front-rear direction of the dishwasher; a protrusion (115) is fixedly connected to the lower side of the lock tongue portion (111); when the lock tongue portion (111) extends into the locking gap (211), the protrusion (115) abuts against the linkage block (23) and can trigger the sensor three (25).

7. The door lock assembly with automatic door opening and closing function according to claim 5, characterized in that: The lock assembly (2) further comprises a linkage rod (24) and a second spring (26); the linkage rod (24) is slidably connected to the lock bracket (20) along the left-right direction of the dishwasher; a linkage inclined surface (241) is formed on the side of the linkage rod (24) facing the linkage block (23); the linkage block (23) can be pressed and linked with the linkage inclined surface (241); the side of the linkage rod (24) facing away from the linkage block (23) can trigger the third sensor (25); the second spring (26) elastically acts on the linkage rod (24) and has an elastic tendency toward the side of the linkage block (23).

8. The door lock assembly with automatic door opening and closing function according to claim 6, characterized in that: The door body (4) of the dishwasher comprises a mounting frame (41), the mounting frame (41) is provided with a sliding frame (411), and the lower side of the linkage block (23) is slidably connected to the sliding frame (411).

9. The door lock assembly with automatic door opening and closing function according to claim 1, characterized in that: The telescopic stroke of the telescopic rod (11) is greater than 5 cm, and the inclination trend of the telescopic rod (11) is 3-8 degrees downwardly inclined toward the front end.

10. A dishwasher, characterized in that: It comprises a chassis (3), a door body (4) and a door lock assembly as described in any one of claims 1 to 9, wherein the lock tongue assembly (1) is installed on the top of the chassis (3), the lock catch assembly (2) is installed in the upper edge of the door body (4), and the lower side of the door body (4) is hinged to the chassis (3).

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