Door lock assembly

Abstract

The invention relates to a door lock assembly which comprises a cam, a sliding block and a pin assembly, the cam can rotate clockwise or anticlockwise around a cam shaft, the sliding block is connected with the cam in a matched mode, so that when the cam shaft rotates clockwise or anticlockwise, the sliding block rotates along with the cam and reciprocates in the length direction of the sliding block, and a moving guide groove is formed in the sliding block; the normal movement path is limited and comprises a first section and a second section of the normal movement path; along with the reciprocating movement of the sliding block, the end part of the pin assembly can move in a conventional moving path relative to the sliding block; wherein the moving guide groove further defines an alternative moving path, and as the sliding block reciprocates, the end of the pin assembly can move in a first section of the conventional moving path defined by the moving guide groove and the alternative moving path relative to the sliding block, and does not move in a second section of the conventional moving path. The door lock assembly is simple in structure, and on the basis that existing functions are not affected, the function of pushing the door from the inner side can be achieved by arranging the additional release guide groove.

Description

Technical Field

[0001] The present application relates to a door lock assembly, and in particular to a door lock assembly for opening a door of an electrical device in multiple ways. Background Art

[0002] Door lock assemblies can be used to lock or open the doors of electrical appliances (such as dryers, washing machines, dishwashers, etc.). The normal use of electrical appliances places many requirements on the door lock assemblies of the appliances. For example, it is necessary to provide users with various convenient ways to open the doors of the appliances, while ensuring the reliable operation of the electrical appliances in various states. In addition, the door lock assemblies of some commercial or household electrical appliances need to have safety mechanisms to protect children. For example, for the door lock assembly of a dryer with a door located on the side, when a child mistakenly enters the drum of the dryer, for example, the closed or locked door must be pushed open from the inside with a relatively small force, so that the child can come out of the drum of the dryer. The present application is intended to provide a door lock assembly that meets the above requirements. Summary of the invention

[0003] In order to meet various requirements for door lock assemblies, the present application provides a door lock assembly, which allows users to close and open the door not only by using a push-push method on the outside of the door, but also by a push-pull method. When the door is closed (locked), the door can also be opened by using a push method on the inside of the door. At the same time, the door lock assembly of the present application has a simple structure, does not add additional components to the door lock assembly in the prior art, and does not change the arrangement of the components inside the door lock box of the prior art. On the basis of not affecting the existing functions of the door lock assembly in the prior art, the present application can achieve the function of pushing the door open from the inside and the beneficial technical effects by providing an additional release guide groove on the heart-shaped guide groove of the slider.

[0004] The technical solution of the door lock assembly of this application is as follows:

[0005] According to a first aspect of the present application, a door lock assembly is provided, which is used to lock the door of an electrical device, and is characterized in that it includes: a cam, a slider and a pin assembly, wherein the cam is configured to rotate clockwise or counterclockwise around a cam shaft; the slider is configured to be connected with the cam so that when the cam shaft rotates clockwise or counterclockwise, the slider can reciprocate along the length direction of the slider as the cam rotates, wherein a moving guide groove is provided on the slider, and the moving guide groove defines a conventional moving path, and the conventional moving path includes a first section of a conventional moving path and a second section of a conventional moving path connected to each other; the pin assembly is configured so that as the slider reciprocates, the end of the pin assembly can move relative to the slider in the conventional moving path defined by the moving guide groove; wherein the moving guide groove also defines an alternative moving path, and the pin assembly is further configured so that as the slider reciprocates, the end of the pin assembly can move relative to the slider in the first section of the conventional moving path and the alternative moving path defined by the moving guide groove, but not in the second section of the conventional moving path.

[0006] According to the first aspect of the present application, it is characterized in that: the moving guide groove is a heart-shaped guide groove, the conventional moving path is a heart-shaped moving path, and four path points are arranged on the heart-shaped moving path, including in sequence: a heart-shaped bottom intersection point A, a heart-shaped first side path vertex B, a heart-shaped upper intersection point C, and a heart-shaped second side path vertex D; wherein, the alternative moving path is arranged between the heart-shaped upper intersection point C and the heart-shaped bottom intersection point A, so that the pin assembly can move directly from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A without passing through the heart-shaped second side path vertex D.

[0007] According to the first aspect of the present application, it is characterized in that: the first section of the conventional moving path is a heart-shaped first side path, and the second section of the conventional moving path is a heart-shaped second side path; wherein the heart-shaped first side path is formed from the heart-shaped bottom intersection point A through the heart-shaped first side path vertex B to the heart-shaped upper intersection point C, and the heart-shaped second side path (CDA) is formed from the heart-shaped bottom intersection point C through the heart-shaped second side path vertex D to the heart-shaped bottom intersection point A, the heart-shaped first side path and the heart-shaped second side path (CDA) are convex moving paths, the heart-shaped first side path vertex B and the heart-shaped second side path vertex D are respectively the highest points of the heart-shaped first side path and the heart-shaped second side path (CDA) protruding outward, and a concave path is formed from the heart-shaped first side path vertex B to the heart-shaped upper intersection point C and from the heart-shaped upper intersection point C to the heart-shaped second side path vertex D.

[0008] According to the first aspect of the present application, it is characterized in that: the heart-shaped moving path is a one-way moving path, wherein the movement in the heart-shaped moving path sequentially passes through the heart-shaped bottom intersection point A, the heart-shaped first side path vertex B, the heart-shaped upper intersection point C, the heart-shaped second side path vertex D, and finally returns to the heart-shaped bottom intersection point A.

[0009] According to a first aspect of the present application, it is characterized in that: when the door is in an open position, the pin assembly is at the bottom intersection point A of the heart shape; when the door is in a closed position, the pin assembly is at the upper intersection point C of the heart shape; and when the door hook of the door is in a maximum insertion position, the pin assembly is at the vertex B of the first side path of the heart shape or the vertex D of the second side path of the heart shape; wherein when the door is subjected to a first inward force in the open position, the pin assembly moves from the bottom intersection point A of the heart shape to the vertex B of the first side path of the heart shape, and the door moves to the maximum insertion position. The door moves to the closed position; when the door is subjected to a second inward force at the closed position, the pin assembly moves from the heart-shaped upper intersection point C to the heart-shaped second side path vertex D, and the door moves to the maximum insertion position again; and when the second inward force is removed, the pin assembly moves from the heart-shaped second side path vertex D back to the heart-shaped bottom intersection point A, and the door returns to the open position.

[0010] According to a first aspect of the present application, it is characterized in that: the alternative movement path is a release guide groove arranged on the slider.

[0011] According to the first aspect of the present application, it is characterized in that: the diameter of the end portion of the pin assembly is larger than the slot width of the release guide slot, wherein when the door is in the closed position and is subjected to an outward force, the pin assembly is configured to apply an extrusion force to both sides of the slot wall of the release guide slot, thereby expanding the release guide slot along the slot width direction, so that the pin assembly can move in the release guide slot from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape.

[0012] According to the first aspect of the present application, it is characterized in that: when the door is in the closed position and is subjected to an outward force, the door hook pulls the cam outward so that the cam has a tendency to rotate counterclockwise, thereby driving the slider to have a tendency to move in a first direction, so that the pin assembly and the release guide groove of the slider are squeezed at the heart-shaped upper intersection point C, so that the pin assembly can squeeze the release guide groove of the slider toward the heart-shaped bottom intersection point A, and then converted into an extrusion force toward both sides of the groove wall of the release guide groove, the extrusion force squeezes and expands the groove width of the release guide groove to be sufficient to accommodate the end of the pin assembly, so that the slider can move relative to the pin assembly in the first direction, thereby not hindering the counterclockwise rotation of the cam, and finally enabling the door to be opened, at which time the pin assembly moves from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A in the release guide groove of the slider.

[0013] According to the first aspect of the present application, it is characterized in that: the release guide groove is a hollow groove or a non-hollow groove.

[0014] According to the first aspect of the present application, it is characterized in that: the release guide groove is a linear guide groove.

[0015] According to the first aspect of the present application, it is characterized in that: a baffle is provided at a position of the release guide groove near the upper intersection point C of the heart shape, and the pin assembly is configured to apply a force to the baffle, wherein when the magnitude of the force applied to the baffle exceeds a threshold value that the baffle can withstand, the baffle is destroyed so that the pin assembly can move from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape in the release guide groove.

[0016] According to the first aspect of the present application, it is characterized in that it also includes a housing, wherein the cam, the slider and the pin assembly are arranged inside the housing.

[0017] According to the first aspect of the present application, it is characterized in that: the pin assembly includes a pin housing and a pin, a portion of the pin is accommodated in the pin housing, and the bottom end of the pin extends from under the pin housing, wherein the pin is configured to move in the heart-shaped moving path.

[0018] According to the first aspect of the present application, it is characterized in that: the shell has a pin cavity, the pin shell is accommodated in the pin cavity, wherein the pin cavity is configured to limit the movement of the pin assembly in the pin cavity along the length direction of the slider, and allow the pin assembly to move in the pin cavity along the width direction of the slider.

[0019] According to the first aspect of the present application, it is characterized in that: the cam includes a lock hook, the lock hook is configured to cooperate with the door hook so as to lock the door hook, and the door hook is installed on the door; wherein, as the door is closed or opened, the door hook is configured to engage or disengage with the lock hook, thereby causing the cam to rotate clockwise or counterclockwise.

[0020] According to the first aspect of the present application, it is characterized in that: a lock hole is provided on the shell, and the door hook passes through the lock hole and cooperates with the lock hook.

[0021] According to the first aspect of the present application, it is characterized by further comprising: a micro switch, which is arranged in the housing. When the door is in the open position, the micro switch is in an off state, and during the closing process of the door, the pin moves from the heart-shaped bottom intersection point A to the heart-shaped upper intersection point C along the first side path, and the micro switch is turned on, and during the opening process of the door, the pin moves from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A along the second side path, and the micro switch is turned off.

[0022] According to the first aspect of the present application, it is characterized in that: the slider has a microswitch actuating portion arranged at one end of the slider, wherein during the process of closing the door, the clockwise rotation of the cam makes the movement of the slider toward the second direction unimpeded, so that it can move toward the second direction, so that the microswitch actuating portion triggers the microswitch, so that the microswitch is turned on, or wherein during the process of opening the door, the counterclockwise rotation of the cam drives the slider to move toward the first direction, so that the microswitch actuating portion disengages from the microswitch, so that the microswitch is turned off.

[0023] According to the first aspect of the present application, it is characterized in that it also includes: a cam torsion spring, which is configured to engage with the cam to provide a driving force for the cam to rotate counterclockwise, and a slider spring, which is configured to engage with the slider to provide a driving force for the slider to move toward the second direction.

[0024] According to a first aspect of the present application, it is characterized in that the electrical device is a dryer.

[0025] Additional aspects and advantages of the present application will be given in part in the description below, and in part will become apparent from the description below, or will be learned through the practice of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1A It is a three-dimensional view of the door lock assembly 100 of the present application.

[0027] Figure 1B for Figure 1A The door lock box 102 of the door lock assembly 100 is shown in a three-dimensional view after the door lock box upper cover 104 is hidden, so as to show more components inside the door lock box 102.

[0028] Figure 1C for Figure 1A The door lock assembly 100 is shown in a cross-sectional view along the MM direction.

[0029] Figure 1D for Figure 1A An exploded view of the installation of the door lock assembly 100 is shown.

[0030] Figure 2A It is a three-dimensional diagram of the slider 116 in the door lock box 102.

[0031] Figure 2B for Figure 2A An enlarged view N of the slider 116 is shown.

[0032] Figure 3A 1 is a perspective view of the pin assembly 114 in the door lock box 102.

[0033] Figure 3B for Figure 3A A longitudinal cross-sectional view of the pin assembly 114 is shown.

[0034] Figure 4A The diagram shows the positional relationship between the door hook 101 and the door lock box 102 when the door is in an open state.

[0035] Figure 4B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in the open state.

[0036] Figure 5A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is about to be closed.

[0037] Figure 5B The diagram shows the position relationship between the pin assembly 114 and the slider 116 when the door is about to be closed.

[0038] Fig. 6A The diagram shows the positional relationship between the door hook 101 and the door lock box 102 when the door is closed and the door hook 101 is in a maximum insertion state.

[0039] Figure 6B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door hook 101 is in the maximum insertion state when the door is closed.

[0040] Fig. 7A The diagram shows the positional relationship between the door hook 101 and the door lock box 102 when the door is in a closed state.

[0041] Figure 7B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in a closed state.

[0042] Fig. 8A The diagram shows the positional relationship between the door hook 101 and the door lock box 102 when the door hook 101 is in a maximum insertion state when the door is opened.

[0043] Figure 8B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door hook 101 is in the maximum insertion state when the door is opened.

[0044] Fig. 9A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is in a closed state and is subjected to an outward force.

[0045] Fig. 9B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in a closed state and is subjected to an outward force.

[0046] Fig. 10A It is a three-dimensional view of another embodiment 1016 of the slider 116 in the door lock box 102.

[0047] Fig. 10B for Fig. 10A An enlarged view O of another embodiment 1016 of the slider 116 is shown.

[0048] Fig.11A It is a three-dimensional view of another embodiment 1116 of the slider 116 in the door lock box 102.

[0049] Fig. 11B for Fig.11A An enlarged view Q of another embodiment 1116 of the slider 116 is shown.

[0050] Fig.12 It is a schematic diagram of a dryer 1200 having a door lock assembly 100 of the present application when the door is in an open position. DETAILED DESCRIPTION

[0051] Various specific embodiments of the present application will be described below with reference to the accompanying drawings that form a part of the present application, but the present application is not limited thereby. It should be understood that although terms indicating directions, such as "upper", "lower", "left", "right", "front" and "rear", etc. are used in the present application to describe the orientation of various example structural parts and elements of the present application, these terms are used here only for the purpose of convenience of description and are determined based on the example orientations shown in the accompanying drawings. Since the embodiments of the present application can be arranged in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations.

[0052] The term "include" and its derivatives are intended to include but not limit. Unless otherwise specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a mechanical connection or an electrical connection, or it can be the internal communication of two components, it can be a direct connection, or it can be indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to the specific circumstances. Where possible, the same or similar reference numerals used in this application refer to the same components.

[0053] In order to make the description of the present application easy to understand, the door of the electrical device of the present application (especially the door of the dryer) has at least three positions, namely: an open position (see Figures 4A-4B and Figure 5A-5B The relative position of the middle door hook 101 and the door lock box), the closed position (see Figure 7A-7B and Figures 9A-9B The relative position of the middle door hook 101 and the door lock box) and the maximum insertion position of the door hook (see Figure 6A-6B and Figures 8A-8B The relative position of the middle door hook 101 and the door lock box), wherein the door open position is the position of the door when the electrical device is not in operation, the door closed position is the position of the door when the electrical device is in normal operation, and the maximum insertion position of the door hook is a process position of the door hook or the door when opening or closing the door.

[0054] Figures 1A-1D Schematic diagram of the door lock assembly 100 of the present application observed from various angles. Figure 1B Hidden Figure 1A The door hook 101 and the door lock box upper cover 104 are shown to show more components inside the door lock box 102; Figure 1C for Figure 1A The cross-sectional view of the door lock assembly 100 in the MM direction is shown to illustrate the configuration and matching relationship between the pin assembly 114 and the pin cavity 142 inside the door lock box 102; Figure 1D for Figure 1A The installation exploded view of the door lock assembly 100 is shown to illustrate the assembly relationship between the various components of the door lock assembly 100. It is noted that, hereinafter, in order to clearly indicate the positional relationship between the door lock box 102 and the various components, the length direction of the door lock box 102 is defined as the X direction, the width direction of the door lock box 102 is defined as the Y direction, and the height direction of the door lock box 102 is defined as the Z direction. Since the embodiments of the present application can be arranged in different directions, the terms X, Y and Z indicating the directions are only for illustration and should not be regarded as limitations.

[0055] like Figure 1AAs shown, the door lock assembly 100 includes a door lock box 102, and the door lock box 102 has a door lock box upper cover 104 and a door lock box base 106. The door lock box upper cover 104 and the door lock box base 106 are connected together by a fixing device 110 (such as a latch). A door lock hole 108 is opened on the door lock box upper cover 104, which is used to accommodate a door hook 101 installed on the door of the electrical device. The door hook 101 is located above the door lock hole 108. When the door hook 101 is inserted into the door lock assembly 100 from the door lock hole 108 on the door lock box 102, it is in contact with the cam inside the door lock assembly 100 (see Figure 1B The cam 112 in the upper part is engaged, and when the cam 112 is locked, the door of the electrical device is locked accordingly.

[0056] Specifically, the door hook 101 comprises a door hook base 105 and a door hook head 103. The door hook base 105 is mounted on the door of the electrical equipment, and the door hook head 103 is provided with a door hook hole 107 for engaging with the cam (see Figure 1B When the cam 112 is locked, the door hook hole 107 on the door hook head 103 is locked by the cam 112, so that the door hook 101 cannot move, and the door of the electrical equipment is locked therewith.

[0057] like Figure 1B and 1D As shown, a slider 116, a pin assembly 114, a cam 112 and a micro switch 118 are sequentially arranged inside the door lock box 102 along the length direction (X direction). The slider 116 is restricted to reciprocate along the length direction (X direction) inside the door lock box 102, but cannot move along the width direction (Y direction); the pin assembly 114 is restricted to reciprocate along the width direction (Y direction) inside the door lock box 102, but cannot move along the length direction (X direction). The cam 112 has a cam shaft 124 arranged along the width direction (Y direction), so that the cam 112 can rotate clockwise or counterclockwise around the cam shaft 124.

[0058] like Figure 1BAs shown, the cam 112 has a lock hook for cooperating with the door hook 101 so as to lock the door hook 101 and a slider actuating portion 155 for actuating the slider 116. The lock hook has a lock hook upper hook 152, a lock hook lower hook 156 and a lock hook receiving cavity 154. As the door is closed or opened, the door hook 101 can be engaged with or separated from the lock hook, so that the cam 112 rotates clockwise or counterclockwise. Specifically, when the door is closed, the door hook head 103 of the door hook 101 hits the lock hook lower hook 156 downward, so that the cam 112 rotates clockwise, so that the lock hook upper hook 152 can rotate to the door hook hole 107 of the door hook 101 and engage with the door hook 101. At this time, the lower end of the door hook 101 is in the lock hook receiving cavity 154 and engages with the cam 112. If the cam 112 is locked, the door hook hole 107 on the door hook head 103 is locked by the lock hook upper hook 152 of the cam 112, so that the door hook 101 cannot move, and the door of the electrical device is locked. When opening the door, the door hook head 103 of the door hook 101 pulls the lock hook upper hook 152 upward in the lock hook cavity 154, so that the cam 112 rotates counterclockwise, so that the door hook 101 is released from the lock hook cavity 154.

[0059] Continue to refer to Figure 1B and 1D The door lock box 102 is also provided with a slider spring 122 and a cam torsion spring 120 inside, wherein the cam 112 and the cam torsion spring 120 are sleeved on a torsion spring sleeve 126 coaxially arranged with the cam shaft 124 to ensure the stability of rotation. One end of the slider spring 122 is connected to the slider 116, and the other end is connected to the left end of the door lock box base 106. When the slider 116 moves rightward along the length direction of the door lock box 102 to stretch the slider spring 122, the slider spring 122 can provide a pulling force (reset force), such as 2 Newtons, for the slider 116 to move leftward along the length direction of the door lock box 102.

[0060] One end of the cam torsion spring 120 is clamped on the lower hook 156 of the lock hook of the cam 112, and the other end is fixed on the door lock box base 106. When the cam 112 rotates clockwise around the cam shaft 124 and drives the cam torsion spring 120 to twist clockwise, the cam torsion spring 120 can provide a torsional force (reset force) for the cam 112 to rotate counterclockwise.

[0061] Figure 1C for Figure 1A The door lock assembly 100 is shown in a cross-sectional view along the MM direction to illustrate the configuration and matching relationship between the pin assembly 114 inside the door lock box 102 and the pin cavity 142.

[0062] like Figure 1CAs shown, a pin cavity 142 for accommodating the pin assembly 114 is provided inside the door lock box upper cover 104, wherein the pin cavity 142 can limit the movement of the pin assembly 114 in the pin cavity 142 along the length direction (X direction) of the slider 116, and allow the pin assembly 114 to move in the pin cavity 142 along the width direction (Y direction) of the slider 116.

[0063] Specifically, since the slider 116 is provided with a heart-shaped guide groove 202 (see Figure 2A-2B ), so the pin assembly 114 can slide along the groove track of the heart-shaped guide groove 202 relative to the slider 116 inside the heart-shaped guide groove 202. The groove track of the heart-shaped guide groove 202 defines two moving directions, X and Y. When the pin assembly 114 moves along the X direction inside the heart-shaped guide groove 202 relative to the slider 116, the pin assembly 114 itself does not move in the X direction relative to the door lock box 102 (door lock box upper cover 104), but the slider 116 moves in the X direction relative to the door lock box 102 (door lock box upper cover 104), which is reflected as the pin assembly 114 moving in the X direction relative to the slider 116.

[0064] Continue to refer to Figure 1C and 1D The micro switch 118 is used to control the power on and off of the electrical equipment. It has a switch contact 128. When the slider 116 moves to the left along the length direction of the door lock box 102 to the left end position, the slider 116 can trigger the switch contact 128 to turn on the micro switch 118 and turn on the electrical equipment; when the slider 116 moves to the right along the length direction of the door lock box 102 to the right end position, the slider 116 loses contact with the switch contact 128, so that the micro switch 118 is disconnected and the electrical equipment is powered off.

[0065] Figure 2A is a three-dimensional diagram of the slider 116 in the door lock box 102, Figure 2B for Figure 2A An enlarged view N of the slider 116 is shown.

[0066] like Figure 2A and 2B As shown, the slider 116 is in the shape of an elongated strip, and a heart-shaped guide groove 202, a cam contact portion 212, a micro switch actuating portion 208 and a spring fixing portion 210 are provided on the upper surface of the slider 116. Figure 2BAs shown, the heart-shaped guide groove 202 defines a unidirectional heart-shaped moving path ABCDA, and four path points are arranged on the heart-shaped moving path ABCDA, including a heart-shaped bottom intersection point A, a heart-shaped upper intersection point C, a heart-shaped first side path vertex B, and a heart-shaped second side path vertex D. The heart-shaped moving path ABCDA includes a heart-shaped first side path ABC and a heart-shaped second side path CDA; wherein the heart-shaped first side path ABC is formed from the heart-shaped bottom intersection point A through the heart-shaped first side path vertex B to the heart-shaped upper intersection point C, and the heart-shaped second side path CDA is formed from the heart-shaped bottom intersection point C through the heart-shaped second side path vertex D to the heart-shaped bottom intersection point A. The heart-shaped first side path ABC and the heart-shaped second side path CDA are outward convex moving paths, and the vertex B of the heart-shaped first side path and the vertex D of the heart-shaped second side path are respectively the highest points of the outward protrusion of the heart-shaped first side path ABC and the heart-shaped second side path CDA, and a concave path is formed from the vertex B of the heart-shaped first side path to the heart-shaped upper intersection point C and from the heart-shaped upper intersection point C to the vertex D of the heart-shaped second side path.

[0067] It is worth noting that in order to ensure that the heart-shaped moving path ABCDA is a unidirectional moving path, the position of the bottom surface of the vertex B of the first side path of the heart shape is higher than the position of the bottom surface of the intersection point C of the upper part of the heart shape, so as to ensure that the pin assembly 114 moves unidirectionally from point B to point C without external force. During the movement of the heart-shaped moving path ABCDA, the pin assembly 114 needs to pass through the heart-shaped bottom intersection point A, the vertex B of the first side path of the heart shape, the heart-shaped upper intersection point C, the vertex D of the second side path of the heart shape, and finally return to the heart-shaped bottom intersection point A.

[0068] Continue to refer to Figure 2B, an alternative movement path CA is also provided between the heart-shaped upper intersection point C and the heart-shaped bottom intersection point A, and the alternative movement path CA is a release guide groove 204 provided on the slider 116. The bottom end diameter of the pin assembly 114 is larger than the groove width of the release guide groove 204, so that in the case where there is no obvious squeezing force between the pin assembly 114 and the release guide groove 204, the pin assembly 114 cannot move through the release guide groove 204. In other words, in the case where there is no obvious squeezing force between the pin assembly 114 and the release guide groove 204, the alternative movement path CA is not a passage. However, when the squeezing force between the pin assembly 114 and the release guide groove 204 is greater than the rated threshold value (for example, greater than 55 Newtons), the pin assembly 114 can apply squeezing force to both sides of the groove wall of the release guide groove 204 to deform the release guide groove 204, thereby expanding the release guide groove 204 along the groove width direction, so that the pin assembly 114 can move directly from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A in the release guide groove 204 without being limited to move in the heart-shaped moving path ABCDA. In other words, when the squeezing force between the pin assembly 114 and the release guide groove 204 is greater than the rated threshold value, the pin assembly 114 can move through the alternative moving path CA.

[0069] Continue to refer to Figure 2A as well as Figure 1C , the cam abutment portion 212 of the slider 116 can abut against the slider actuation portion 155 of the cam 112. In the process of opening the door, the cam 112 rotates counterclockwise, and the slider actuation portion 155 of the cam 112 abuts against the cam abutment portion 212 of the slider 116, thereby pushing the slider 116 to the right, causing the slider 116 to move to the right, and stretching the slider spring 122 to the right, so that the micro switch actuation portion 208 of the slider 116 is disengaged from the switch contact 128, so that the micro switch 118 is disconnected, and the electrical device is powered off; in the process of closing the door, when the cam 112 rotates clockwise, the slider actuation portion 155 of the cam 112 tends to be disengaged from the cam abutment portion 212 of the slider 116, so that the slider 116 moves to the left under the tensile force of the slider spring 122, and the micro switch actuation portion 208 of the slider 116 can trigger the switch contact 128 to turn on the micro switch 118, and the electrical device is powered on. Specifically, the slider spring 122 is fixed to the spring fixing portion 210 at the left end of the slider 116 .

[0070] In the embodiment of the present application, the restoring force provided by the cam torsion spring 120 to the cam 112 for counterclockwise rotation can be set to be greater than the restoring force of the slider spring 122 pulling the slider 116 to the left. In this way, when the door lock assembly 100 of the present application is not subjected to external force and the slider 116 is not locked, the cam 112 has a tendency to rotate counterclockwise, and the slider 116 has a tendency to move rightward to cut off the power of the electrical device, so that the door hook 101 has a tendency to move upward, that is, the door of the electrical device has a tendency to open. If the door of the electrical device is to be closed, it is necessary to apply a force to the inside of the door to move the door hook 101 downward. This force needs to overcome the restoring force of the cam torsion spring 120 to make the cam 112 rotate clockwise, and then the slider 116 can move to the left under the action of the restoring force of the slider spring 122 to power on the electrical device.

[0071] Figure 3A is a perspective view of the pin assembly 114, Figure 3B A longitudinal cross-sectional view of the pin assembly 114 .

[0072] like Figure 3A and 3B As shown, the pin assembly 114 includes a pin housing 302 and a pin 304, wherein the pin housing 302 is accommodated in the pin cavity 142, the upper end of the pin 304 is accommodated in the internal cavity of the pin housing 302, and the bottom end of the pin 304 extends from the bottom of the pin housing 302. With the reciprocating movement of the slider 116, the pin 304 can move in the heart-shaped moving path ABCDA of the slider 116, and the pin 304 can only move up and down (move in the Z direction) in the internal cavity of the pin housing 302 and cannot move in other directions (such as the X or Y direction). A pin spring 306 is also provided inside the pin housing 302, which is located between the upper wall of the internal cavity of the pin housing 302 and the upper end of the pin 304, and is used to provide a biasing force for the pin 304 to move downward. Therefore, when the pin 304 is not subjected to external force, the pin 304 has a tendency to move downward. In the heart-shaped moving path ABCDA, since the position of the bottom surface of the vertex B on the first side path of the heart shape is higher than the position of the bottom surface of the upper intersection point C of the heart shape, when the pin 304 is not subjected to external force, the pin 304 will only move from the relatively higher position vertex B on the first side path of the heart shape to the relatively lower position upper intersection point C of the heart shape, and will not move in the opposite direction from the upper intersection point C of the heart shape to the vertex B on the first side path of the heart shape, thereby ensuring the unidirectionality of the heart-shaped moving path ABCDA.

[0073] Combination Figure 2A and 2BSince the pin cavity 142 restricts the pin assembly 114 to move only in the width direction (Y direction) of the slider 116, the pin 304 in the pin assembly 114 moves from the heart-shaped bottom intersection point A of the slider 116 to the heart-shaped first side path vertex B, corresponding to the slider 116 moving to the left along the length direction of the door lock box 102 (X direction), the pin 304 moves from the heart-shaped first side path vertex B of the slider 116 to the heart-shaped upper intersection point C, corresponding to the slider 116 moving to the right along the length direction of the door lock box 102 (X direction), the pin 304 moves from the heart-shaped upper intersection point C of the slider 116 to the heart-shaped second side path vertex D, corresponding to the slider 116 moving to the left along the length direction of the door lock box 102 (X direction), and the pin 304 moves from the heart-shaped second side path vertex D of the slider 116 back to the heart-shaped bottom intersection point A, corresponding to the slider 116 moving to the right along the length direction of the door lock box 102 (X direction).

[0074] In combination with the corresponding relationship between the movement of the pin 304 relative to the slider 116 and the movement of the slider 116 itself, when the door of the electrical equipment is subjected to a force toward the inside of the door in the open position, the door hook 101 moves downward, pushing the cam 112 to overcome the reset force of the cam torsion spring 120 and rotate clockwise. The clockwise rotation of the cam 112 allows the slider 116 to move to the left under the reset force of the slider spring 122. At this time, the pin 304 moves from the heart-shaped bottom intersection point A to the vertex B of the heart-shaped first side path relative to the slider 116, and the door moves from the open position to the closed position; when the above-mentioned force toward the inside of the door is removed, the cam 112 rotates counterclockwise under the action of the reset force of the cam torsion spring 120, pushing the slider 116 to move a distance to the right. At this time, the pin 304 moves from the vertex B of the heart-shaped first side path to the heart-shaped upper intersection point C relative to the slider 116 under the guidance of the heart-shaped first side path ABC, and abuts against the point C position of the release guide groove 204, and the door remains in the closed position.

[0075] When the door of the electrical equipment is subjected to a force toward the inside of the door in the closed position, the door hook 101 moves downward for a distance, pushing the cam 112 to overcome the restoring force of the cam torsion spring 120 and rotate clockwise. The clockwise rotation of the cam 112 allows the slider 116 to move to the left for a distance under the restoring force of the slider spring 122. At this time, the pin 304 moves from the upper intersection point C of the heart shape to the vertex D of the second side path of the heart shape relative to the slider 116, and the door remains in the closed position; when the above-mentioned force toward the inside of the door is removed, the cam 112 rotates counterclockwise under the action of the restoring force of the cam torsion spring 120, pushing the slider 116 to move to the right. At this time, the pin 304 returns from the vertex D of the second side path of the heart shape to the bottom intersection point A of the heart shape relative to the slider 116 under the guidance of the second side path CDA of the heart shape, and the door moves from the closed position to the open position.

[0076] Figures 4A-8BThe diagrams respectively show the position relationship between the door hook 101 and the door lock box 102 during normal opening and closing of the door of the electrical device, and the position relationship between the pin assembly 114 and the slider 116. In order to show more components inside the door lock box 102, the door lock box cover 104 is hidden in the above views.

[0077] Figure 4A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is in the open position. Figure 4B shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in the open position; Figure 5A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is about to be closed. Figure 5B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is about to be closed.

[0078] like Figures 4A-4B As shown, when the door is in the open position, the door hook 101 is located above the door lock box 102, the cam 112 is kept at the limit position that can be reached by counterclockwise rotation under the action of the restoring force of the cam torsion spring 120, the slider 116 is located at the rightmost end in the door lock box 102 under the contact of the cam 112, and the pin assembly 114 is located at the heart-shaped bottom intersection point A of the heart-shaped guide groove 202. The micro switch actuating portion 208 of the slider 116 is out of contact with the switch contact 128, so that the micro switch 118 is disconnected, and thus the electrical device is in a power-off state.

[0079] When the door is in the open position and a force F is applied to the inner side of the door, the door hook 101 moves downward. Figure 5A-5B As shown, when the door hook 101 moves to a position about to contact the cam 112, the door is in a position about to close. At this time, the positions of the cam 112 and the slider 116 have not changed relative to the door being in the open position, and the pin assembly 114 is located at the heart-shaped bottom intersection point A of the heart-shaped guide groove 202.

[0080] Fig. 6A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is closed and the door hook 101 is at the maximum insertion position. Figure 6B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door hook 101 is at the maximum insertion position when the door is closed.

[0081] like Figure 6A-6BAs shown, when the door hook 101 is subjected to a continuous force F toward the inside of the door at the position where it touches the cam 112, the door hook 101 continues to move downward, pushing the cam 112 to overcome the reset force of the cam torsion spring 120 and rotate clockwise. The clockwise rotation of the cam 112 allows the slider 116 to move to the left under the reset force of the slider spring 122, triggering the switch contact 128 so that the micro switch 118 is turned on, and the electrical device is powered on. At this time, the pin assembly 114 moves from the heart-shaped bottom intersection point A to the heart-shaped first side path vertex B relative to the slider 116, the door moves from the open position to the closed position, and the door hook 101 is at the maximum insertion position.

[0082] Fig. 7A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is in the closed position. Figure 7B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in the closed position.

[0083] like Figure 7A-7B As shown, when the door hook 101 is in Figure 6A-6B When the force F toward the inside of the door is removed at the maximum insertion position shown, the cam 112 rotates counterclockwise under the reset force of the cam torsion spring 120, pushing the slider 116 to move a distance to the right (the length of the distance is the distance between point B and point C in the length direction of the slider), at this time, the pin assembly 114 moves from the vertex B of the first side path of the heart shape to the upper intersection point C of the heart shape relative to the slider 116 under the guidance of the first side path ABC of the heart shape, and abuts against the point C position of the release guide groove 204, the door remains in the closed position, and the door hook 101 moves upward from the maximum insertion position to the normal insertion position under the drive of the cam 112. In the above process, the distance that the slider 116 moves to the right is not enough to make the micro switch actuating part 208 of the slider 116 disengage from the switch contact 128, so the electrical device remains powered on.

[0084] Fig. 8A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door hook 101 is at the maximum insertion position when the door is opened. Figure 8B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door hook 101 is at the maximum insertion position when the door is opened.

[0085] like Figures 8A-8BAs shown, when the door of the electrical equipment is again subjected to a force F directed toward the inside of the door in the closed position, the door hook 101 moves downward by the force F for a certain distance (the length of the distance is the distance between point C and point D in the length direction of the slider), pushing the cam 112 to overcome the reset force of the cam torsion spring 120 and rotate clockwise. The clockwise rotation of the cam 112 allows the slider 116 to move to the left for a certain distance under the reset force of the slider spring 122. At this time, the pin assembly 114 moves relative to the slider 116 from the upper intersection point C of the heart shape to the vertex D of the second side path of the heart shape, and the door remains in the closed position. The door hook 101 moves from the normal insertion position to the maximum insertion position again.

[0086] When the force F toward the inside of the door is removed, the cam 112 rotates counterclockwise under the action of the restoring force of the cam torsion spring 120, pushing the slider 116 to move rightward, and the micro switch actuating portion 208 of the slider 116 is disconnected from the switch contact 128, so that the micro switch 118 is disconnected and the electrical device is powered off. At this time, the pin assembly 114 returns from the vertex D of the second side path of the heart shape to the intersection point A at the bottom of the heart shape relative to the slider 116 under the guidance of the second side path CDA of the heart shape, and the door moves from the closed position to the closed position. Figure 5A-5B Shown in open position.

[0087] Fig. 9A The diagram shows the position relationship between the door hook 101 and the door lock box 102 when the door is in a closed position and subjected to an outward force. Fig. 9B The diagram shows the positional relationship between the pin assembly 114 and the slider 116 when the door is in a closed position and subjected to an outward force.

[0088] In the prior art, the slider 116 of the door lock assembly is only provided with a heart-shaped guide groove 202 defining a one-way heart-shaped moving path ABCDA, but no release guide groove 204 defining an alternative moving path CA. Therefore, when the door is in the closed position, the pin assembly 114 is located at the upper intersection point C of the heart-shaped guide groove 202. At this time, when the door is subjected to a force P0 toward the outside of the door (such as a child pushing outward in the drum of a dryer), the door hook 101 pulls the cam 112 outward, so that the cam 112 has a tendency to rotate counterclockwise, thereby driving the slider 116 to have a tendency to move rightward, so that the pin assembly 114 and the slider 116 are squeezed at the heart-shaped upper intersection point C of the heart-shaped guide groove 202. Since there is no extra moving space (moving path) at the heart-shaped upper intersection point C, the pin assembly 114 is stuck at the heart-shaped upper intersection point C and cannot move relative to the slider 116, so that the slider 116 is locked, the cam 112 is locked by the slider 116, and the door hook 101 is locked by the cam 116 and cannot be pulled out, so that the door cannot be opened normally. Therefore, if a child mistakenly enters the above-mentioned prior art dryer and is locked in the barrel of the dryer, the door cannot be opened by applying a push force from the inside of the door, and may face the risk of suffocation.

[0089] In contrast, in the present application, Figures 9A-9B As shown, the slider 116 is provided with not only a heart-shaped guide groove 202 defining a one-way heart-shaped moving path ABCDA, but also a release guide groove 204 defining an alternative moving path CA. When the door is in the closed position, the pin assembly 114 is located at the upper intersection point C of the heart-shaped guide groove 202. When the door is subjected to a force P0 toward the outside of the door (e.g., a push force from a child in the drum of a dryer), the door hook 101 pulls the cam 112 outward, so that the cam 112 has a tendency to rotate counterclockwise, thereby driving the slider 116 to have a tendency to move rightward, so that the pin assembly 114 and the release guide groove 204 of the slider 116 are squeezed at the heart-shaped upper intersection point C, so that the pin assembly 114 squeezes the release guide groove 204 of the slider 116 toward the heart-shaped bottom intersection point A, which is then converted into a squeezing force P1 toward both sides of the groove wall of the release guide groove 204. When the squeezing force is large enough (e.g., 55 Newtons), the width of the release guide groove 204 can be squeezed and expanded to be large enough to accommodate the end of the pin 304 of the pin assembly 114 (i.e., the width of the groove is larger than the diameter of the end of the pin 304), so that the slider 116 can move rightward relative to the pin 304 of the pin assembly 114. After the slider 116 moves rightward, the abutment between the cam abutment portion 212 of the slider 116 and the slider actuation portion 155 of the cam 112 is eliminated, thereby not hindering the counterclockwise rotation of the cam 112. The counterclockwise rotation of the cam 112 can release the door hook 101, and finally enable the door to be opened. In the above process, the pin assembly 114 moves from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A in the release guide groove 204 of the slider 116. When the pin assembly 114 passes through the release guide groove 204, it no longer squeezes the release guide groove 204, and the release guide groove 204 and its groove width can be elastically restored to the original size.

[0090] It can be seen that if a child mistakenly enters a dryer having a door lock assembly of the present application and is locked in the barrel of the dryer, the door can be pushed open by applying a thrust from the inside of the door, and the force required to push the door open (thrust threshold) can be set or adjusted by the following method.

[0091] In the embodiment of the present application, in order to make the door easier to push open from the inside, the release guide groove 204 is designed as a hollow linear guide groove that penetrates the slider 116, so that the release guide groove 204 is easier to deform so that the alternative moving path CA is connected. However, for those who have at least ordinary skills in the art, the release guide groove 204 is designed as a non-hollow guide groove (see, for example, FIG. Figures 11A-11B In the embodiment shown in the figure), by selecting appropriate materials, it can be ensured that the release guide groove of the slider is deformed under a set force.

[0092] Fig. 10Ais a three-dimensional diagram of another embodiment 1016 of the slider 116 in the door lock box 102, Fig. 10B for Fig. 10A An enlarged view O of another embodiment 1016 of the slider 116 is shown. Figures 10A-10B The slider 1016 is shown with Figure 2A-2B The structures of the sliders 116 are shown to be substantially the same, with the only difference being the structure of the release guide grooves. The parts of the sliders that have the same structure will not be described in detail.

[0093] like Figures 10A-10B As shown, the release guide groove 1004 of the slider 1016 is compared to Figure 2A-2B The release guide groove 204 of the slider 116 is shown to be wider, and the release guide groove 1004 is sufficient to accommodate the pin 304, that is, the groove width of the release guide groove 1004 is not less than the end diameter of the pin 304. The release guide groove 1004 is provided with a baffle 1006 near the heart-shaped upper intersection point C. When the door is in the closed position and is subjected to a force toward the outside of the door, the pin 304 of the pin assembly 114 can apply a squeezing force to the baffle 1006. When the magnitude of the squeezing force exceeds the threshold value (e.g., 55 Newtons) that the baffle 1006 can withstand, the baffle 1006 is destroyed, so that the pin 304 can move from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A in the release guide groove 1004. The magnitude of the squeezing force threshold that the baffle 1006 can withstand can be set by setting a suitable baffle thickness.

[0094] Fig.11A is a three-dimensional diagram of another embodiment 1116 of the slider 116 in the door lock box 102, Fig. 11B for Fig.11A An enlarged view Q of another embodiment 1116 of the slider 116 is shown. Figures 11A-11B The slider 1116 is shown with Figure 2A-2B The structure of the slider 116 is basically the same, the only difference is that the release guide groove is a non-hollow guide groove, and the parts of the slider structure that are the same will not be repeated. Even if the release guide groove is a non-hollow guide groove, the release guide groove 1104 can be deformed under a set force by selecting a suitable material, so that the pin 304 can move from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A in the release guide groove 1104.

[0095] Fig.12 It is a schematic diagram of a dryer 1200 having a door lock assembly 100 of the present application when the door is in an open position.

[0096] like Fig.12As shown, the dryer 1200 has a dryer body 1202, a door 1204, and a door lock assembly 100, wherein a door hook 101 is disposed on the inner side of the door 1204, and a door lock box 102 is disposed on the dryer body 1202 at a position corresponding to the door hook 101. When the door 1204 is closed, the door hook 101 can pass through the door lock hole 108 and be hooked with the door lock box 102.

[0097] Fig.12 The dryer 1200 shown is merely an example, and the door lock assembly 100 of the present application may also be installed on various electrical devices having a cavity and a door for closing the cavity, such as a washing machine, a dishwasher, a microwave oven, etc., and may also be installed on other non-electrical devices.

[0098] The purpose of this application is to at least partially solve the above technical problems.

[0099] Now with regard to the prior art, the door lock assembly of the present application has the following beneficial technical effects compared with the door lock in the prior art:

[0100] The present application provides a door lock assembly, which has a simple structure. Compared with the door lock assembly in the prior art, no additional components are added, and the arrangement of the components inside the door lock box in the prior art is not changed. On the basis of not affecting the existing functions of the door lock assembly in the prior art (including but not limited to applying two thrusts on the outside of the door to open and close the door), the present application can achieve the function of pushing the door open from the inside and the beneficial technical effect by setting an additional release guide groove on the heart-shaped guide groove of the slider. Through the reasonable groove width setting, material selection or baffle thickness setting of the release guide groove, the thrust threshold for pushing the door open from the inside can be conveniently adjusted, making the manufacturing and processing of the slider easier.

[0101] Although the present application has been described in conjunction with the examples of the embodiments summarized above, it is obvious to those of ordinary skill in the art that various alternatives, modifications, changes, improvements and / or substantially equivalent solutions, whether known or currently or foreseeable in the near future, may be apparent. In addition, the technical effects and / or technical problems described in the present application are exemplary rather than restrictive; so the disclosure in the present application may be used to solve other technical problems and have other technical effects and / or may solve other technical problems. Therefore, the examples of the embodiments of the present application as stated above are intended to be illustrative rather than restrictive. Various changes may be made without departing from the spirit or scope of the present application. Therefore, the present application is intended to include all known or earlier developed alternatives, modifications, changes, improvements and / or substantially equivalent solutions.

Claims

1. A door lock assembly (100), the door lock assembly (100) being used to lock the door of an electrical device, characterized in that include: A cam (112), wherein the cam (112) is configured to rotate clockwise or counterclockwise around a cam shaft (124); a slider (116), the slider (116) being configured to be connected in cooperation with the cam (112), so that when the cam shaft (124) rotates clockwise or counterclockwise, the slider (116) can reciprocate along the length direction of the slider (116) along with the rotation of the cam (112), wherein the slider (116) is provided with a moving guide groove (202), the moving guide groove (202) defining a normal moving path (ABCDA), the normal moving path (ABCDA) comprising a first normal moving path section (ABC) and a second normal moving path section (CDA) connected to each other; and A pin assembly (114), wherein the pin assembly (114) is configured such that, as the slider (116) reciprocates, an end portion of the pin assembly (114) can move relative to the slider (116) in the conventional movement path (ABCDA) defined by the movement guide groove (202); In which, the moving guide groove (202) also defines an alternative moving path (CA), and the pin assembly (114) is also configured such that as the slider (116) reciprocates, the end of the pin assembly (114) can move relative to the slider (116) in the first section (ABC) of the conventional moving path defined by the moving guide groove (202) and the alternative moving path (CA), but not in the second section (CDA) of the conventional moving path.

2. The door lock assembly according to claim 1, characterized in that: The moving guide groove is a heart-shaped guide groove (202), the conventional moving path (ABCDA) is a heart-shaped moving path (ABCDA), and the heart-shaped moving path (ABCDA) is provided with four path points, including in sequence: a heart-shaped bottom intersection point A, a heart-shaped first side path vertex B, a heart-shaped upper intersection point C, and a heart-shaped second side path vertex D; The alternative moving path (CA) is arranged between the upper intersection point C of the heart shape and the bottom intersection point A of the heart shape, so that the pin assembly (114) can move directly from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape without passing through the vertex D of the second side path of the heart shape.

3. The door lock assembly according to claim 2, characterized in that: The first section (ABC) of the conventional moving path is a heart-shaped first side path (ABC), and the second section (CDA) of the conventional moving path is a heart-shaped second side path (CDA); The heart-shaped first side path (ABC) is formed from the heart-shaped bottom intersection point A through the heart-shaped first side path vertex B to the heart-shaped upper intersection point C. The heart-shaped second side path (CDA) is formed from the heart-shaped bottom intersection point C through the heart-shaped second side path vertex D to the heart-shaped bottom intersection point A, The heart-shaped first side path (ABC) and the heart-shaped second side path (CDA) are outward convex movement paths, the vertex B of the heart-shaped first side path and the vertex D of the heart-shaped second side path are the highest points of the heart-shaped first side path (ABC) and the heart-shaped second side path (CDA) protruding outward, respectively, and A concave path is formed from the vertex B of the first side path of the heart shape to the upper intersection point C of the heart shape and from the upper intersection point C of the heart shape to the vertex D of the second side path of the heart shape.

4. The door lock assembly according to claim 3, characterized in that: The heart-shaped moving path (ABCDA) is a one-way moving path, wherein the heart-shaped moving path (ABCDA) moves sequentially through the heart-shaped bottom intersection point A, the heart-shaped first side path vertex B, the heart-shaped upper intersection point C, the heart-shaped second side path vertex D, and finally returns to the heart-shaped bottom intersection point A.

5. The door lock assembly according to claim 2, characterized in that: When the door is in an open position, the pin assembly (114) is located at the heart-shaped bottom intersection point A; When the door is in a closed position, the pin assembly (114) is located at the upper intersection point C of the heart shape; as well as When the door hook (101) of the door is at the maximum insertion position, the pin assembly (114) is at the vertex B of the first side path of the heart shape or the vertex D of the second side path of the heart shape; wherein When the door is subjected to the first inward force in the open position, the pin assembly (114) moves from the heart-shaped bottom intersection point A to the heart-shaped first side path vertex B, and the door moves to the maximum insertion position. When the first inward force is removed, the pin assembly (114) moves from the vertex B of the first side path of the heart shape to the upper intersection point C of the heart shape, and the door moves to the closed position. When the door is subjected to a second inward force in the closed position, the pin assembly (114) moves from the heart-shaped upper intersection point C to the heart-shaped second side path vertex D, and the door moves to the maximum insertion position again, and When the second inward force is removed, the pin assembly (114) moves from the vertex D of the heart-shaped second side path back to the heart-shaped bottom intersection point A, and the door returns to the open position.

6. The door lock assembly according to claim 5, characterized in that: The alternative movement path (CA) is a release guide groove (204, 1004) provided on the slider (116).

7. The door lock assembly according to claim 6, characterized in that: The diameter of the end portion of the pin assembly (114) is greater than the width of the release guide groove (204). When the door is in the closed position and is subjected to an outward force, the pin assembly (114) is configured to apply an extrusion force to both sides of the groove wall of the release guide groove (204), thereby expanding the release guide groove (204) along the groove width direction, so that the pin assembly (114) can move from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape in the release guide groove (204).

8. The door lock assembly according to claim 7, characterized in that: When the door is in the closed position and is subjected to an outward force, the door hook (101) of the door pulls the cam (112) outward, causing the cam (112) to have a tendency to rotate counterclockwise, thereby driving the slider (116) to have a tendency to move along the first direction, so that the pin assembly (114) and the release guide groove (204) of the slider (116) are squeezed at the intersection point C of the upper part of the heart shape, so that the pin assembly (114) can squeeze the release guide groove (204) of the slider (116) in the direction of the intersection point A of the bottom of the heart shape, thereby The extrusion force is converted into an extrusion force on both sides of the groove wall of the release guide groove (204), and the extrusion force squeezes and expands the groove width of the release guide groove (204) to be sufficient to accommodate the end of the pin assembly (114), so that the slider (116) can move relative to the pin assembly (114) toward the first direction, thereby not hindering the counterclockwise rotation of the cam (112), and finally enabling the door to be opened. At this time, the pin assembly (114) moves from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape in the release guide groove (204) of the slider (116).

9. The door lock assembly according to claim 8, characterized in that: The release guide groove (204) is a hollow groove or a non-hollow groove.

10. The door lock assembly according to claim 8, characterized in that: The release guide groove (204) is a linear guide groove.

11. The door lock assembly according to claim 6, characterized in that: The release guide groove (1004) is provided with a baffle (1006) at a position close to the heart-shaped upper intersection point C, and the pin assembly (114) is configured to apply a force to the baffle (1006). When the force applied to the baffle (1006) exceeds a threshold value that the baffle (1006) can withstand, the baffle (1006) is destroyed so that the pin assembly (114) can move from the upper intersection point C of the heart shape to the bottom intersection point A of the heart shape in the release guide groove (1004).

12. The door lock assembly according to claim 11, characterized in that Also includes: A housing (104, 106), wherein the cam (112), the slider (116) and the pin assembly (114) are disposed inside the housing (104, 106).

13. The door lock assembly according to claim 12, wherein: The pin assembly (114) includes a pin housing (302) and a pin (304), a portion of the pin (304) is accommodated in the pin housing (302), and a bottom end of the pin (304) extends from below the pin housing (302). The pin (304) is configured to move in the heart-shaped movement path (ABCDA).

14. The door lock assembly according to claim 13, wherein: The housing (104, 106) has a pin cavity (142), and the pin housing (302) is accommodated in the pin cavity (142), wherein the pin cavity (142) is configured to limit the movement of the pin assembly (114) in the pin cavity (142) along the length direction of the slider (116), and allow the pin assembly (114) to move in the pin cavity (142) along the width direction of the slider (116).

15. The door lock assembly according to claim 14, characterized in that: The cam (112) includes a locking hook (152, 154, 156), wherein the locking hook (152, 154, 156) is configured to cooperate with the door hook (101) so as to lock the door hook (101), wherein the door hook (101) is installed on the door; As the door is closed or opened, the door hook (101) is configured to engage with or disengage from the lock hooks (152, 154, 156), thereby causing the cam (112) to rotate clockwise or counterclockwise.

16. The door lock assembly according to claim 15, characterized in that: The housing (104, 106) is provided with a lock hole (108), and the door hook (101) passes through the lock hole (108) and cooperates with the lock hook (152, 154, 156).

17. The door lock assembly of claim 16, wherein Also includes: A micro switch (118) is arranged in the housing (104, 106). When the door is in the open position, the micro switch (118) is in the off state. wherein during the process of closing the door, the pin (304) moves along the first side path (ABC) from the heart-shaped bottom intersection point A to the heart-shaped upper intersection point C, and the micro switch (118) is turned on, and During the process of the door opening, the pin (304) moves along the second side path (CDA) from the heart-shaped upper intersection point C to the heart-shaped bottom intersection point A, and the micro switch (118) is disconnected.

18. The door lock assembly according to claim 17, wherein: The slider (116) has a micro switch actuating portion (208) disposed at one end of the slider (116). During the process of closing the door, the clockwise rotation of the cam (112) causes the movement of the slider (116) in the second direction to be unimpeded, so that the slider (116) can move in the second direction, so that the micro switch actuating portion (208) triggers the micro switch (118), so that the micro switch (118) is turned on, or During the process of opening the door, the counterclockwise rotation of the cam (112) drives the slider (116) to move toward the first direction, so that the micro switch actuating portion (208) disengages from the micro switch (118), and the micro switch (118) is disconnected.

19. The door lock assembly of claim 18, wherein Also includes: a cam torsion spring (120) configured to engage with the cam (112) to provide a driving force for the cam (112) to rotate counterclockwise, and A slider spring (122) is configured to engage with the slider (116) to provide a driving force for moving the slider (116) toward the second direction.

20. The door lock assembly of claim 1, wherein The electrical equipment is a drying machine.

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