Door lock and household appliance

Abstract

The utility model discloses a door lock and a household electrical appliance, the door lock comprises a mounting rack, the mounting rack is provided with two door hooks distributed along the left and right, each door hook comprises an end part, a connecting part and a hook part, and the end part is connected with the hook part through the connecting part; the end part is accommodated in the mounting frame, and the connecting part extends backwards, so that the hook part extends out of the mounting frame; the end part is rotationally connected with the mounting frame, and the connecting part is connected with an elastic piece, so that the two hook parts can be close to or far away from each other under the elastic force action of the elastic piece; the installation frame is further provided with one or more electromagnets, the electromagnets are located beside the two end portions, the two door hooks are respectively connected with metal strips, and the two metal strips can be respectively and fixedly connected with the electromagnets. The dishwasher is reasonable in structural design, the electromagnet can be electrically connected with the child lock, and children are prevented from opening the dishwasher door by mistake in the washing process.

Description

TECHNICAL FIELD

[0001] The utility model relates to domestic appliance technical field especially relates to a door lock and domestic appliance. BACKGROUND

[0002] Dishwasher, for a kind of domestic appliance, some dishwasher door lock on the market just by mechanical mechanism buckles the door hook installed on door body, and by door buckle driver triggers micro switch, so that dishwasher judges that door has been closed, can carry out washing, when door is opened, door buckle driver is separated from micro switch, so that dishwasher judges that door has been opened, stops working or cannot work or interrupts work.

[0003] Since just buckle door, not lock, therefore children can misoperation, open door, once in high temperature washing mode, door is opened, then washing steam will be affected by internal and external pressure difference, immediately escape, whether adult or child, there will be the risk of being high temperature steam burns, misinjury.

[0004] For example, the dishwasher of authorized announcement No.CN103584814 B, the door of the dishwasher of this prior art does not have locking function, but just buckles door, and micro switch of switch, printed circuit board cooperation judges whether door is opened or closed, to control whether dishwasher works. Although there is the signal determination of dishwasher door opening or closing to make dishwasher stop, but, in high temperature washing, once opened in washing process, then high temperature water vapor is still easy to hurt people, especially children's eyes (such as dishwasher residual heat washing steam is not very friendly to children, especially the hot steam escaped when opening door can damage children's eyes). UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a door lock to realize more reliable buckling door, realize locking door by electromagnet power, make electromagnet lose power to realize unlocking door after domestic appliance work, further, can be connected with the electromagnet by setting child lock button on domestic appliance, realize avoiding children to trigger unlocking door opening in domestic appliance washing process, play double protection effect.

[0006] In order to achieve the above object, the technical scheme of the utility model provides a door lock, including the mounting bracket, the mounting bracket is equipped with two door hooks which are distributed along left and right, the door hook includes end, connecting portion, hook portion, the end is connected through the connecting portion and the hook portion, the end is contained in the inside of the mounting bracket, and the connecting portion extends towards the rear, so that the hook portion extends outside the mounting bracket, the end is rotatably connected with the mounting bracket, and the connecting portion is connected with the elastic piece, so that the two hook portions can approach or move away from each other under the elastic force of the elastic piece, the mounting bracket is also equipped with one or more electromagnets, the electromagnet is located on one side of the two ends, and two metal strips are respectively connected on the two door hooks, and the two metal strips can be respectively magnetically fixedly connected with the electromagnet.

[0007] Further, one or more of the electromagnets are contained in the inside of the mounting bracket, and the electromagnets are located in front of the two ends; one end of the metal strip extends towards the front beyond the end, and the other end of the metal strip extends towards the rear beyond the end, so that the front end of the metal strip can be magnetically fixedly connected with the electromagnet, and the rear end of the metal strip is fixedly connected with the connecting portion.

[0008] Further, the inside of the mounting bracket is also provided with two rotating shafts which are distributed along left and right, and one or more electromagnets are located in front of the two rotating shafts; the end is provided with an axle hole, and the two ends are rotatably connected with the two rotating shafts through the axle hole respectively.

[0009] Further, the left and right sides of the rotating shaft are respectively provided with baffles, and the door hook and the metal strip are swingably arranged between the baffles on the left and right sides.

[0010] Further, the rear lower end of the mounting bracket is provided with a movable opening, the rear ends of the two connecting portions are bent rearward and downward and pass through the movable opening, so that the two hook portions are located rearward and downward of the mounting bracket; the two hook portions are bent towards opposite sides, the bottom of the mounting bracket is provided with a fixed block, the middle part of the fixed block is provided with a Y-shaped sliding groove with a notch facing the rear, and the two hook portions are located rearward of the Y-shaped sliding groove.

[0011] Further, the bottom of the mounting bracket is also provided with a sliding groove extending along front and rear, the sliding groove is located frontward and upward of the fixed block, and the two ends are located left rearward and right rearward of the sliding groove respectively; the inside of the sliding groove is provided with a door sensing sliding block, the front end of the door sensing sliding block is connected with a door sensing sliding block spring, and the rear end of the door sensing sliding block is bent downward and extends into the Y-shaped sliding groove; the left front wall or the right front wall of the sliding groove is provided with a circuit board, the door sensing sliding block cooperates with the circuit board, and the circuit board is electrically connected with the electromagnet.

[0012] Further, the fixed block is internally provided with an upwardly open groove, the Y-shaped sliding groove penetrates the middle of the groove upwardly, and the rear end of the door sensing sliding block is bent downwardly and extends into the groove; the mounting frame comprises a bottom shell and an upper cover, and the door hook is a plastic door hook or an iron door hook or a plastic-coated iron door hook.

[0013] Further, the opposite sides of the two connecting portions are respectively provided with elastic members, and the opposite sides of the two connecting portions are respectively provided with positioning blocks, and the two positioning blocks are positioned and abutted together.

[0014] Further, the elastic members are compression springs, the left and right side walls of the mounting frame are respectively provided with first abutment grooves, the opposite sides of the two connecting portions are respectively provided with second abutment grooves, and the two ends of the compression springs are respectively arranged in the first abutment grooves and the second abutment grooves.

[0015] A household appliance comprises a household appliance body and a door lock according to the above technical solution; the household appliance body is provided with a household appliance door which can be opened and closed, the household appliance door is locked and matched by the door lock and a latch head; a child lock is arranged on the control panel of the household appliance body, a door closing signal micro switch is arranged on the circuit board, the door sensing sliding block cooperates with the door closing signal micro switch; the first end and the third end of the circuit board, the child lock and the door closing signal micro switch are electrically connected to form a door sensing loop, and the first end or the third end of the circuit board and the second end of the circuit board, the child lock and the electromagnet are electrically connected to form an electromagnet locking loop; when the child lock is in an unlocked state, the household appliance door can be opened.

[0016] In summary, the technical solution of the present invention has the following beneficial effects: the structural design of the present invention is reasonable, (1) by including a mounting frame, the mounting frame is provided with two door hooks distributed along the left and right sides, the door hook includes an end portion, a connecting portion, and a hook portion, and the end portion is connected to the hook portion through the connecting portion; the end portion is accommodated in the interior of the mounting frame, and the connecting portion extends toward the rear so that the hook portion extends out of the mounting frame; the end portion is rotatably connected to the mounting frame, and the connecting portion is connected to the elastic member so that the two hook portions can move closer to or farther away from each other under the elastic force of the elastic member; thus, when the dishwasher door (or the door of other household appliances) is closed, the latch head can be engaged with the two door hooks, and when the dishwasher door is opened, the latch head can be disengaged from the two door hooks, and the presence of the elastic member enables the two door hooks to have the ability to be elastically reset. (2) The mounting frame is also provided with one or more electromagnets, which are located on either side of the two ends. Metal strips are connected to the two door hooks, respectively, and the two metal strips can be magnetically fixed to the electromagnets. Thus, the metal strips of the two door hooks cooperate with the electromagnets, and when the electromagnets are energized, the metal strips are attracted and fixed, thereby having the function of locking the dishwasher door (or the door of other household appliances). When the electromagnets are not energized, the metal strips can be separated from the electromagnets, allowing the dishwasher door to be opened. From the above analysis, it can be seen that the electromagnet of the utility model can be electrically connected to the child lock to prevent children from accidentally opening the dishwasher door during the washing process (i.e., to realize the child lock function, the child lock needs to be pressed to unlock). BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the three-dimensional structure of the utility model when the upper cover is removed;

[0018] Figure 2 This is a top-down perspective structural diagram of the present invention;

[0019] Figure 3 This is a top-down perspective structural diagram of the latch head used in the present invention;

[0020] Figure 4 This is a top-down perspective structural diagram of the bottom shell of the present invention;

[0021] Figure 5 This is a bottom perspective structural diagram of the bottom shell of the present invention;

[0022] Figure 6 This is a top-down perspective structural diagram of the utility model when the mounting bracket is removed;

[0023] Figure 7 This is a schematic diagram of the three-dimensional structure when the utility model is removed from the mounting frame;

[0024] Figure 8 This is a top view of the three-dimensional structure of the utility model when the upper cover and one side door hook are removed;

[0025] Figure 9 This is a schematic diagram of the structure of the electrical connection between the circuit board, the child lock and the electromagnet of the utility model;

[0026] Explanation of Reference Numerals: 1-mounting frame, 2-door hook, 3-elastic member, 4-electromagnet, 5-metal strip, 6-door sensing slider, 7-door sensing slider spring, 8-circuit board, 9-latch; 10-bottom shell, 11-upper cover; 12-child lock, 13-door closed signal micro switch;

[0027] 101-rotating shaft, 102-baffle, 103-movable opening, 104-fixed block, 105-Y-shaped slide groove, 106-groove, 107-sliding groove, 108-first abutting groove; 201-end, 202-connecting portion, 203-hook, 204-axial hole, 205-positioning block, 206-second abutting groove; 80-first end, 803-third end, 802-second end; 901-latch head body, 902-front connecting plate, 903-rear connecting plate, 904-mounting plate, 905-bottom plate. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention, but this does not constitute a limitation on the protection scope of the present invention.

[0029] In this utility model, for a clearer description, the following explanation is made: the observer faces the Figure 1 For observation, the left side of the observer is set as left, the right side of the observer is set as right, the front of the observer is set as bottom, the rear side of the observer is set as top, the top of the observer is set as front, and the bottom of the observer is set as back. It should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "top", "bottom" and so on in the text indicate the direction or position relationship based on the direction or position relationship set in the drawings, which is only for the convenience of clearly describing the present invention, and does not indicate or imply that the structure or component referred to must have a specific direction or be constructed in a specific direction. Therefore, it cannot be understood as a limitation of the present invention. In addition, the terms "first", "second", "third", and "fourth" are only used for the purpose of clarifying or simplifying the description, and cannot be understood as indicating or implying relative importance or quantity.

[0030] See also Figures 1 to 9The embodiment provides a door lock, which comprises a mounting frame 1, the mounting frame 1 is provided with two door hooks 2 distributed along left and right, the door hook 2 comprises an end part 201, a connecting part 202 and a hook part 203, the end part 201 is connected with the hook part 203 through the connecting part 202; the end part 201 is accommodated in the mounting frame 1, and the connecting part 202 extends towards the back, so that the hook part 203 extends out of the mounting frame 1; the end part 201 is rotationally connected with the mounting frame 1, and the connecting part 202 is connected with an elastic element 3, so that the two hook parts 203 can approach or move away from each other under the elastic force of the elastic element 3; the mounting frame 1 is further provided with one or more electromagnets 4, the electromagnet 4 is located beside the two end parts 201, two metal strips 5 are respectively connected on the two door hooks 2, and the two metal strips 5 can be respectively magnetically fixedly connected with the electromagnet 4. Action: (1) the mounting frame is provided with two door hooks distributed along left and right, the door hook comprises an end part, a connecting part and a hook part, the end part is connected with the hook part through the connecting part; the end part is accommodated in the mounting frame, and the connecting part extends towards the back, so that the hook part extends out of the mounting frame; the end part is rotationally connected with the mounting frame, and the connecting part is connected with an elastic element, so that the two hook parts can approach or move away from each other under the elastic force of the elastic element; when the dishwasher door (or the door of other household appliances) is closed, the latch head can be buckled together with the two door hooks, and when the dishwasher door is opened, the latch head can be separated from the two door hooks, and the existence of the elastic element enables the two door hooks to have the elastic resetting capability. (2) the mounting frame is further provided with one or more electromagnets, the electromagnet is located beside the two end parts, two metal strips are respectively connected on the two door hooks, and the two metal strips can be respectively magnetically fixedly connected with the electromagnet; the metal strips of the two door hooks are respectively matched with the electromagnet, the electromagnet is electrified to attract and fix the metal strip, has the locking function for the dishwasher door (or the door of other household appliances), and when the electromagnet is not electrified, the metal strip can be separated from the electromagnet, so that the dishwasher door can be opened. From the above analysis, the electromagnet of the utility model can be electrically connected with the child lock, so that the child does not open the dishwasher door by mistake during the washing process (that is, the child lock function is realized, and the child lock needs to be pressed to unlock).

[0031] Specifically, the one or more electromagnets 4 are accommodated in the mounting frame 1, and the electromagnet 4 is located in front of the two end parts 201; one end of the metal strip 5 extends towards the front beyond the end part 201, and the other end of the metal strip 5 extends towards the back beyond the end part 201, so that the front end of the metal strip 5 can be magnetically fixedly connected with the electromagnet 4, and the rear end of the metal strip 5 is fixedly connected with the connecting part 202. Action: such a setting enables the front end of the metal strip 5 to have sufficient length to cooperate with the electromagnet 4, and the rear end of the metal strip 5 has sufficient length to be fixedly connected with the connecting part 202. As a preferred, the metal strip 5 can be an iron sheet. Further, one or more electromagnets can also be set according to requirements, and the electromagnets are preferably two electromagnets and are distributed along left and right.

[0032] Specifically, the inside of the mounting frame 1 is also provided with two rotating shafts 101 distributed left and right, one or more electromagnets 4 are located in front of the two rotating shafts 101; the end 201 is provided with a shaft hole 204, and the two ends 201 are respectively rotatably connected with the two rotating shafts 101 through the shaft hole 204. Effect: The cooperation of the shaft hole 204 and the rotating shaft 101 can realize the rotation of the door hook 2.

[0033] Specifically, the left and right sides of the rotating shaft 101 are respectively provided with baffles 102, and the door hook 2 and the metal strip 5 are swingingly arranged between the left and right baffles 102. Effect: The two baffles 102 can provide space for the swing of the door hook 2 and the metal strip 5, and also provide limiting action.

[0034] Specifically, the lower rear end of the mounting frame 1 is provided with a movable opening 103, and the rear ends of the two connecting portions 202 are bent rearward and downward and pass through the movable opening 103, so that the two hook portions 203 are located at the lower rear of the mounting frame 1; the two hook portions 203 are bent towards each other, the bottom of the mounting frame 1 is provided with a fixed block 104, the middle part of the fixed block 104 is provided with a Y-shaped sliding groove 105 with a notch facing rearward, and the two hook portions 203 are located at the rear of the Y-shaped sliding groove 105. Effect: The Y-shaped sliding groove 105 can cooperate with the two hook portions 203 to lock and cooperate with the latch head 9. In order to better buckle with the two door hooks 2, see Figures 1-3 : The latch head 9 includes a four-angled latch head body 901, the front and rear ends of the latch head body 901 are respectively provided with a front connecting plate 902 and a rear connecting plate 903, the rear end of the rear connecting plate 903 is provided with a mounting plate 904, and the left and right lower sides of the rear connecting plate 903 are respectively provided with a bottom plate 905 (of course, other latch head structures with the same function are also possible). In this way, the working principle is as follows: when the latch head 9 advances forward, the front connecting plate 902 can be pushed forward into the Y-shaped sliding groove 105, and the two door hooks 2 are first opened and then closed, so that the two hook portions 203 and the latch head body 901 are buckled together; and the mounting plate 904 can drive the latch head body 901 and the front connecting plate 902 to move forward and backward through the rear connecting plate 903 and the bottom plate 905.

[0035] Specifically, the bottom of the mounting frame 1 is further provided with a sliding groove 107 extending along the front and back, the sliding groove 107 is located above the front of the fixed block 104, and the two ends 201 are located at the left rear and right rear of the sliding groove 107 respectively; the inside of the sliding groove 107 is provided with a door sensing sliding block 6, the front end of the door sensing sliding block 6 is connected with a door sensing sliding block spring 7, the rear end of the door sensing sliding block 6 is bent downward and extends into the Y-shaped sliding groove 105; the left front wall or the right front wall of the sliding groove 107 is provided with a circuit board 8, the door sensing sliding block 6 cooperates with the circuit board 8, and the circuit board 8 is electrically connected with the electromagnet 4. Action: when the latch head 9 is pushed forward, the front connecting plate 902 can abut against the door sensing sliding block 6 when being pushed forward into the Y-shaped sliding groove 105, then the door sensing sliding block 6 compresses the door sensing sliding block spring 7 forward, and at the same time, the door sensing sliding block 6 cooperates with the circuit board 8 when moving forward, so that the circuit board 8 receives the signal that the dishwasher door is closed; when the latch head 9 is withdrawn backward, the front connecting plate 902 can be withdrawn backward from the Y-shaped sliding groove 105, so that the door sensing sliding block 6 moves backward and resets under the elastic action of the door sensing sliding block spring 7, and at the same time, the door sensing sliding block 6 cooperates with the circuit board 8 when moving backward, so that the circuit board 8 receives the signal that the dishwasher door is opened. The circuit board 8 can be electrically connected with one or more electromagnets 4, so that after the circuit board 8 is electrically connected with the child lock, the child lock can control the power-on and power-off of one or more electromagnets 4 through the circuit board 8.

[0036] Specifically, the inside of the fixed block 104 is provided with a recess 106 opening upward, the Y-shaped sliding groove 105 penetrates the middle part of the recess 106 upward, and the rear end of the door sensing sliding block 6 is bent downward and extends into the recess 106; the mounting frame 1 comprises a bottom shell 10 and an upper cover 11, and the door hook 2 is a plastic door hook or an iron door hook or a plastic-coated iron door hook. Action: because the Y-shaped sliding groove 105 is small, and the recess 106 can provide sufficient space for the cooperation of the rear end of the door sensing sliding block 6 and the latch head; since the fixed block 104 is made on the bottom shell 10, the cost and installation are saved, and it is convenient for non-professionals to operate.

[0037] Specifically, the opposite sides of the two connecting parts 202 are respectively provided with elastic members 3, and the opposite sides of the two connecting parts 202 are respectively provided with positioning blocks 205, and the two positioning blocks 205 can be positioned and abutted together. Action: the two elastic mechanisms (elastic members 3) make the household appliance door more stable when being buckled, and are not easy to deviate, thus providing stronger door buckling stability and increasing the durability of the household appliance; this is because the two elastic members 3 (such as compression springs) have a more stable function of keeping the door central, and the existing patent CN103584814B will deviate because one tension spring contracts, and two freely moving door hooks will cause deviation. The two positioning blocks 205 can be arranged to cooperate to position when the two connecting parts 202 are close to each other. In actual use: the elastic member 3 can be horizontally placed along the left and right directions, or can be inclinedly placed along the front and back directions, which can be selected according to actual needs.

[0038] Specifically, the elastic member 3 is a compression spring, the left and right side walls of the mounting frame 1 are respectively provided with first abutting grooves 108, the opposite sides of the two connecting portions 202 are respectively provided with second abutting grooves 206, and the two ends of the compression spring are respectively arranged in the first abutting grooves 108 and the second abutting grooves 206. Action: The support surface of the compression spring is large, and installation problems are not easy to occur, and the elastic force of the two compression springs increases the locking ability. The two compression spring structures of the embodiment can be adjusted in angle to realize different door opening and closing forces required by different customers. Of course, the elastic member 3 can also be a torsion spring scheme, which can be selected as needed.

[0039] In actual work, the two elastic members 3 correspond to the two door hooks 2, so that only a part of the parts (such as the elastic member 5) needs to be simply deformed, so that the different door opening and closing force requirements of the customer end can be realized (because the greater the elastic force provided by the elastic member, the greater the door opening and closing force required by the customer end), the door locking force can be freely adjusted, and the operation is convenient, the structure is simple, and has certain universality. The door lock of the prior art (existing patent CN103584814B) is a single elastic mechanism, which is unstable and has poor durability.

[0040] A household appliance includes a household appliance body, and further includes the door lock of the above technical solution; the household appliance body is provided with a household appliance door that can be opened and closed, and the household appliance door is locked and matched by the door lock and the latch head 9; the control panel of the household appliance body is provided with a child lock 12, the circuit board 8 is provided with a door closing signal micro switch 13, the door sensing slider 6 is matched with the door closing signal micro switch 13; the first end 801 and the third end 803 of the circuit board 8, the child lock 12, and the door closing signal micro switch 13 are electrically connected to form a door sensing loop, and the first end 801 or the third end 803 of the circuit board 8 is electrically connected with the second end 802 of the circuit board 8, the child lock 12, and the electromagnet 4 to form an electromagnet locking loop; when the child lock 12 is in an unlocked state, the household appliance door can be opened. Action: The forward and backward movement of the door sensing slider 6 can trigger the door closing signal micro switch 13, so as to determine whether the household appliance door is closed; and the “electromagnet locking loop” is connected to the “door sensing loop” as “the electromagnet locking can be triggered only after the door is closed”, so as to prevent the child player from using the appliance button and triggering the locking by mistake.

[0041] In actual work, when the household appliance is a dishwasher, after the dishwasher door is closed, a signal that the dishwasher door has been closed is given, and the child lock gives an optional locking and unlocking option. The dishwasher door is locked, and after the dishwasher completes the work, the child lock is unlocked to make the dishwasher door open. Since the locking function of the door lock (such as the electromagnet 4 of the door lock and the circuit board 8) can be connected to the child lock, the child can be prevented from opening the door during the washing process. As for the child lock, the child lock function can be realized by connecting the electromagnet to the relay, circuit breaker, control program, etc. of the dishwasher (household appliance), and the child lock needs to be pressed to unlock the conventional technology, which will not be repeated here.

[0042] As a preferred embodiment, the dishwasher body is provided with a door opening, one side edge of the door opening is rotatably connected to one side edge of the dishwasher door, and the other side edge of the door opening is provided with a door lock. The other side edge of the dishwasher door is provided with a latch head 9 (also called a door buckle), so that the door lock and the latch head 9 cooperate to realize the opening and closing of the dishwasher door.

[0043] Of course, the door lock of the present application can be applied to other household appliances with the same needs in addition to the dishwasher. It should be noted that in addition to the door lock of the present application, the remaining components (such as the latch head 9, the child lock, etc.) can be provided by the manufacturer of the household appliance, which will not be repeated here.

[0044] As described above, the existing patent CN103584814B is a scheme for one tension spring, but the scheme of the present application has two compression springs, so it has good stability, and has a metal part and an electromagnet locking cooperation, which can be connected to the child lock, and provides a real locking function, and when the child lock is eliminated, the door can be opened.

[0045] The above is the preferred embodiment of the present application, and it should be noted that for ordinary skilled persons in the technical field, without departing from the principle of the present application, a number of improvements and refinements can be made, which are also considered within the protection scope of the present application.

Claims

1. A door lock, comprising a mounting frame (1), characterized in that: The mounting frame (1) is provided with two door hooks (2) distributed along the left and right sides, and the door hooks (2) include an end portion (201), a connecting portion (202), and a hook portion (203), wherein the end portion (201) is connected to the hook portion (203) via the connecting portion (202); the end portion (201) is accommodated in the interior of the mounting frame (1), and the connecting portion (202) extends toward the rear so that the hook portion (203) extends out of the mounting frame (1); the end portion (201) is connected to the door hook (203) The mounting frame (1) is rotatably connected, and the connecting portion (202) is connected to the elastic member (3), so that the two hook portions (203) can move closer to or farther away from each other under the elastic force of the elastic member (3); the mounting frame (1) is further provided with one or more electromagnets (4), the electromagnets (4) being located beside the two end portions (201), and the two door hooks (2) are respectively connected with metal strips (5), and the two metal strips (5) can be respectively magnetically fixedly connected to the electromagnets (4).

2. A door lock according to claim 1, characterized in that: One or more electromagnets (4) are housed inside the mounting frame (1), and the electromagnets (4) are located in front of the two end portions (201); one end of the metal strip (5) extends forward over the end portion (201), and the other end of the metal strip (5) extends backward over the end portion (201), so that the front end of the metal strip (5) can be magnetically fixedly connected to the electromagnet (4), and the rear end of the metal strip (5) is connected and fixed to the connecting portion (202).

3. A door lock according to claim 2, characterized in that: The interior of the mounting frame (1) is further provided with two rotating shafts (101) distributed along the left and right sides, and one or more electromagnets (4) are located in front of the two rotating shafts (101); an axis hole (204) is provided on the end portion (201), and the two end portions (201) are rotatably connected to the two rotating shafts (101) through the axis hole (204).

4. A door lock according to claim 3, characterized in that: Baffles (102) are respectively provided on the left and right sides of the rotating shaft (101), and the door hook (2) and the metal bar (5) are swingably arranged between the baffles (102) on the left and right sides.

5. A door lock according to any one of claims 1 to 4, characterized in that: The mounting frame (1) is provided with a movable opening (103) at the rear lower end, and the rear ends of the two connecting portions (202) are bent toward the rear lower end and pass through the movable opening (103), so that the two hook portions (203) are located at the rear lower end of the mounting frame (1); the two hook portions (203) are bent toward opposite sides, and a fixing block (104) is provided at the bottom of the mounting frame (1), and a Y-shaped slide groove (105) with a notch facing the rear is provided in the middle of the fixing block (104), and the two hook portions (203) are located behind the Y-shaped slide groove (105).

6. A door lock according to claim 5, characterized in that: The bottom of the mounting frame (1) is further provided with a sliding groove (107) extending forward and backward, the sliding groove (107) is located above and in front of the fixed block (104), and the two ends (201) are respectively located at the left rear and right rear of the sliding groove (107); a door sensing slider (6) is provided inside the sliding groove (107), the front end of the door sensing slider (6) is connected to the door sensing slider spring (7), and the rear end of the door sensing slider (6) is bent downward and extends into the Y-shaped sliding groove (105); a circuit board (8) is provided on the left front wall or the right front wall of the sliding groove (107), the door sensing slider (6) cooperates with the circuit board (8), and the circuit board (8) is electrically connected to the electromagnet (4).

7. A door lock according to claim 6, characterized in that: The interior of the fixing block (104) is provided with a groove (106) opening upward, the Y-shaped slide groove (105) extends upward through the middle of the groove (106), and the rear end of the door sensing slider (6) is bent downward and extends into the groove (106); the mounting frame (1) includes a bottom shell (10) and an upper cover (11), and the door hook (2) is a plastic door hook or an iron door hook or a plastic-coated iron door hook.

8. A door lock according to any one of claims 1 to 4, 6 to 7, characterized in that: The two connecting parts (202) are respectively provided with elastic members (3) on opposite sides thereof, and the two connecting parts (202) are respectively provided with positioning blocks (205) on opposite sides thereof, and the two positioning blocks (205) can be positioned and abutted together.

9. A door lock according to claim 8, characterized in that: The elastic member (3) is a compression spring, and the left and right side walls of the mounting frame (1) are respectively provided with first abutment grooves (108), and the opposite sides of the two connecting parts (202) are respectively provided with second abutment grooves (206), and the two ends of the compression spring are respectively installed in the first abutment groove (108) and the second abutment groove (206).

10. A household appliance, comprising a household appliance body, characterized in that: The invention also includes the door lock according to claim 6 or 7; the household appliance body is provided with a household appliance door that can be opened and closed, and the household appliance door is locked and matched by the door lock and the latch (9); the control panel of the household appliance body is provided with a child lock (12), the circuit board (8) is provided with a door closing signal micro switch (13), and the door sensing slider (6) cooperates with the door closing signal micro switch (13); the first end (801) and the third end (803) of the circuit board (8), the child lock (12), and the door closing signal micro switch (13) are electrically connected to form a door sensing circuit, and the first end (801) or the third end (803) of the circuit board (8) is electrically connected to the second end (802) of the circuit board (8), the child lock (12), and the electromagnet (4) to form an electromagnet locking circuit; when the child lock (12) is in the unlocked state, the household appliance door can be opened.

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