Connecting device and household machine

Abstract

The invention relates to a connecting device and a household machine, and the connecting device comprises a connecting seat which is rotatably disposed on a second installation plate and is detachably connected with a first installation plate; the torsion assembly comprises a torsion bar and a sleeve, the torsion bar is rotationally arranged on the second mounting plate, the sleeve is movably arranged on the peripheral side of the torsion bar in a sleeving mode, and the sleeve is in transmission connection with the connecting base; under the condition that the torsion bar rotates in the axis direction of the torsion bar, the sleeve can drive the connecting base to rotate relative to the second mounting plate, so that the connecting base has a first state in which the connecting base is connected with the first mounting plate and a second state in which the connecting base is separated from the first mounting plate. The first mounting plate and the second mounting plate can be dismounted or mounted without entering the internal space of the household machine, so that the operation difficulty of workers is reduced, and the dismounting and maintenance convenience of the workers is greatly improved.

Description

Technical Field

[0001] The present application relates to the technical field of air conditioning, and in particular to a connecting device and a household unit. Background Art

[0002] With the progress of society, the consumption level of users continues to improve, and the market share of household units has gradually increased. A household unit is an air-cooled unit, generally installed in the attic or corridor. The household unit has high requirements for the installation environment and requires a large installation space to be reserved in advance. At present, the fan section and evaporator section of the household unit are installed in different sheet metal boxes.

[0003] In the related art, different sheet metal parts are usually positioned by spot welding pins and connected by screws. Since the fan section and the evaporator section are installed in different sheet metal parts, the internal operating space of the sheet metal parts is small, resulting in insufficient operating space for workers during disassembly and maintenance, making disassembly and maintenance more troublesome. Summary of the invention

[0004] The present application provides a connection device and a household machine to solve the technical problem that the existing household machines are installed by means of spot welding pins and screws, and the internal operating space of the household machine is small, resulting in insufficient operating space for workers during disassembly and maintenance, making disassembly and maintenance more troublesome.

[0005] In a first aspect, the present application provides a connecting device for connecting a first mounting plate and a second mounting plate, the connecting device comprising:

[0006] A connecting seat, rotatably disposed on the second mounting plate, the connecting seat being detachably connected to the first mounting plate;

[0007] The torsion assembly comprises a torsion bar and a sleeve, wherein the torsion bar is rotatably arranged on the second mounting plate, the sleeve is movably sleeved on the circumference of the torsion bar, and the sleeve is transmission-connected to the connecting seat;

[0008] Wherein, when the torsion bar rotates along its own axial direction, the sleeve can drive the connecting seat to rotate relative to the second mounting plate, so that the connecting seat has a first state connected to the first mounting plate and a second state separated from the first mounting plate.

[0009] In one possible implementation, the connecting seat has a connecting end and a transmission end that are relatively arranged, and the middle part of the connecting seat is rotatably arranged on the second mounting plate. The transmission end of the connecting seat is transmission-connected to an end of the sleeve away from the second mounting plate, so that the connecting end of the connecting seat can rotate away from the first mounting plate to reach the second state, or the connecting end of the connecting seat can rotate close to the first mounting plate to reach the second state.

[0010] In a possible implementation, a connecting block is provided at one end of the torsion bar close to the connecting seat, the sleeve is sleeved on the circumference of the connecting block, and the connecting block and the sleeve are threadedly connected so that the sleeve can reciprocate along the axial direction of the torsion bar;

[0011] An articulated seat is arranged at one end of the sleeve away from the second mounting plate, and the transmission end of the connecting seat is hingedly connected to the articulated seat.

[0012] In one possible implementation, the inner wall of the sleeve is provided with a first internal thread, the connecting block is provided with a first external thread matching the first internal thread, and the length of the first internal thread is adjusted based on the minimum distance between the connecting end of the connecting seat and the first mounting plate.

[0013] In a possible implementation, the sleeve and the connecting seat are arranged on the same side of the second mounting plate, the first end of the torsion bar passes through the second mounting plate and is slidably connected to the sleeve, and the second end of the torsion bar is exposed on a side of the second mounting plate away from the connecting seat.

[0014] In a possible implementation, a first groove is provided on a side of the second mounting plate facing away from the connecting seat, and a knob is provided on the second end of the torsion bar, and the knob is rotatably disposed on the first groove.

[0015] In a possible implementation, a convex rib is provided on a side of the second mounting plate facing away from the connecting seat, a second groove is provided on the knob, and the convex rib is rotatably connected to the second groove.

[0016] In a possible implementation, a blocking cover is provided on the second mounting plate, and the blocking cover covers the first groove.

[0017] In a possible implementation, the torsion assembly includes a spring, which is sleeved on the circumference of the sleeve, wherein the first end of the spring is connected to the back side of the second mounting plate, and the second end of the spring is connected to the transmission end of the connecting seat.

[0018] In a possible implementation, the connection end of the connection seat is provided with a first nail, the first mounting plate is provided with a first pin hole, and the first nail is connected to the first pin hole by clamping.

[0019] In a possible implementation, a plurality of the first staples are provided, and the plurality of the first staples are arranged at intervals. A plurality of the first pin holes are provided, and the plurality of the first pin holes are connected to the first staples in a one-to-one correspondence.

[0020] In a possible implementation, a first bracket is provided on the second mounting plate, a hinge is provided in the middle of the connecting seat, the hinge includes a first surface and a second surface intersecting each other, the first surface of the hinge is connected to a side of the connecting seat facing the second mounting plate, and the second surface of the hinge is connected to the first bracket.

[0021] In a possible implementation, a second bracket is provided on a side of the first mounting plate facing the connecting seat, a second staple is provided at the connecting end of the connecting seat, a second pin hole is provided on the second bracket, and the second staple is connected to the second pin hole by snapping.

[0022] In a second aspect, the present application provides a household machine, comprising a first mounting plate, a second mounting plate and a connecting device as described above, wherein the connecting device is used to connect the first mounting plate and the second mounting plate.

[0023] The above technical solution provided by the embodiment of the present application has the following advantages compared with the prior art:

[0024] The connection device and household machine provided by the embodiment of the present application, when the first mounting plate and the second mounting plate need to be installed or removed, the torsion bar rotates along its own axis direction under the action of external force, and the external force can be the torque applied by the staff, or the driving force applied by other driving members. When the first mounting plate and the second mounting plate need to be tightened, the torsion bar is rotated so that the sleeve drives the connecting seat to rotate relative to the second mounting plate, and the end of the connecting seat away from the sleeve can move close to the first mounting plate until the first state is reached, and the connecting seat and the first mounting plate are connected to each other, thereby achieving fixed installation between the first mounting plate and the second mounting plate. When the first mounting plate and the second mounting plate need to be removed, the torsion bar is rotated in the opposite direction so that the sleeve drives the connecting seat to rotate relative to the second mounting plate, and the end of the connecting seat away from the sleeve can move away from the first mounting plate until the second state is reached, and the connecting seat and the first mounting plate are separated from each other, thereby achieving disassembly between the first mounting plate and the second mounting plate, and the staff does not need to operate on both sides of the first mounting plate or the second mounting plate at the same time, thereby improving the convenience of disassembly and maintenance. The staff can remove or install the first mounting plate and the second mounting plate without entering the internal space of the household machine case. The internal components of the household machine will not affect the installation and disassembly of the staff, thereby reducing the operating difficulty of the staff and greatly improving the convenience of disassembly and maintenance for the staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0026] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0027] One or more embodiments are exemplarily described by pictures in the corresponding drawings, and these exemplified descriptions do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, and unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0028] Figure 1 A schematic diagram of the structure of a connecting device provided in one embodiment of the present application;

[0029] Figure 2 for Figure 1 The working status of the connecting device shown Figure 1 ;

[0030] Figure 3 for Figure 1 The working status of the connecting device shown Figure 2 ;

[0031] Figure 4 for Figure 1 The working status of the connecting device shown Figure 3 ;

[0032] Figure 5 for Figure 2 A cross-sectional view of the connecting device shown, wherein the connecting seat is in a first state;

[0033] Figure 6 for Figure 5 The enlarged schematic diagram at A in the middle;

[0034] Figure 7 A schematic diagram of the structure of a connecting device provided in another embodiment of the present application;

[0035] Figure 8 for Figure 3 Enlarged schematic diagram of point B in the middle.

[0036] Description of reference numerals:

[0037] 1. Connecting device; 11. Connecting seat; 111. Connecting end; 112. Transmission end; 113. Hinge; 114. Second staple; 12. Torque assembly; 121. Torsion bar; 1211. Connecting block; 1212. Knob; 1213. Second groove; 122. Sleeve; 1221. Articulated seat; 1222. First internal thread; 13. Spring; 2. First mounting plate; 21. Second bracket; 211. Second pin hole; 3. Second mounting plate; 31. First groove; 32. Rib; 33. First bracket; 4. First box; 5. Second box. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0039] The disclosure below provides many different embodiments or examples to implement different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or letters in different examples. This repetition is for the purpose of simplification and clarity, and does not itself indicate the relationship between the various embodiments and / or settings discussed.

[0040] For ease of description, spatial relative terms may be used herein to describe the relative positional relationship or movement of one element or feature relative to another element or feature as shown in the figure, such as "inside", "outside", "inner side", "outer side", "below", "below", "above", "above", "front", "back", etc. Such spatial relative terms are intended to include different orientations of the device in use or operation in addition to the orientation depicted in the figure. For example, if the device in the figure undergoes a position flip or a posture change or a motion state change, then these directional indications also change accordingly, for example: an element described as "below other elements or features" or "below other elements or features" will subsequently be oriented as "above other elements or features" or "above other elements or features". Therefore, the example term "below..." may include both upper and lower orientations. The device may be otherwise oriented (rotated 90 degrees or in other directions) and the spatial relative descriptors used herein are interpreted accordingly.

[0041] In the related art, the fan section and evaporator section of the household unit are installed in different sheet metal boxes, which are surrounded by multiple sheet metal parts. Generally, different sheet metal parts are positioned by spot welding pins and connected by screws. Since the fan section and evaporator section are installed in different boxes, the internal operating space of the box is small, resulting in insufficient operating space for workers during disassembly and maintenance, which makes disassembly and maintenance more troublesome.

[0042] In order to solve the technical problem that the existing household machines are installed by spot welding pins and screws, and the internal operating space of the household machines is small, resulting in insufficient operating space for workers during disassembly and maintenance, making disassembly and maintenance more troublesome, the present application provides a connecting device and a household machine, which can realize disassembly or installation of the first mounting plate and the second mounting plate without entering the internal space of the household machine, reducing the operating difficulty of the workers and greatly improving the convenience of disassembly and maintenance for the workers.

[0043] Figure 1 to Figure 2A connecting device 1 provided in the present application is used to connect a first mounting plate 2 and a second mounting plate 3. The connecting device 1 includes a connecting seat 11 and a torsion assembly 12. The connecting seat 11 is rotatably arranged on the second mounting plate 3, and the connecting seat 11 is detachably connected to the first mounting plate 2; the torsion assembly 12 includes a torsion bar 121 and a sleeve 122. The torsion bar 121 is rotatably arranged on the second mounting plate 3, and the sleeve 122 is movably sleeved on the circumferential side of the torsion bar 121, and the sleeve 122 is transmission-connected to the connecting seat 11; wherein, when the torsion bar 121 rotates along its own axial direction, the sleeve 122 can drive the connecting seat 11 to rotate relative to the second mounting plate 3, so that the connecting seat 11 has a first state connected to the first mounting plate 2 and a second state separated from the first mounting plate 2.

[0044] It is understandable that when the first mounting plate 2 and the second mounting plate 3 need to be installed or removed, the torsion bar 121 rotates along its own axis under the action of an external force, and the external force can be a torque applied by a staff member or a driving force applied by other driving members. When the first mounting plate 2 and the second mounting plate 3 need to be tightened, the torsion bar 121 is rotated so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move closer to the first mounting plate 2 until the first state is reached, and the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby realizing the fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is necessary to disassemble the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated in the opposite direction so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3. The end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until reaching the second state. The connecting seat 11 and the first mounting plate 2 are separated from each other, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3. The staff does not need to operate on both sides of the first mounting plate 2 or the second mounting plate 3 at the same time, thereby improving the convenience of disassembly and maintenance.

[0045] It should be noted that the first mounting plate 2 and the second mounting plate 3 can be stacked up and down in the vertical direction, or stacked left and right in the horizontal direction. Figure 2 As shown, the first mounting plate 2 and the second mounting plate 3 can be stacked up and down in the vertical direction, and the connection device 1 provided by the embodiment of the present application is used for installation. In order to further illustrate the beneficial effects that can be achieved by the embodiment of the present application, as shown in FIG. Figure 3As shown, a plurality of first mounting plates 2 are arranged to form a first box body 4, and a plurality of second mounting plates 3 are arranged to form a second box body 5. The first box body 4 and the second box body 5 are stacked up and down in the vertical direction. Then, the side of the first mounting plate 2 or the second mounting plate 3 facing away from the internal space of the second box body 5 can be called the outer side, and the side of the first mounting plate 2 or the second mounting plate 3 facing the internal space of the second box body 5 can be called the inner side. It can be understood that when the first mounting plate 2 or the second mounting plate 3 needs to be installed, the staff can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, apply external force to rotate the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move close to the first mounting plate 2 until it reaches the first state, and the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby realizing the fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is necessary to disassemble the first mounting plate 2 and the second mounting plate 3, the staff can stand outside the first mounting plate 2 or the second mounting plate 3 and rotate the torsion bar 121 in the opposite direction, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3. In other words, the staff can disassemble or install the first mounting plate 2 and the second mounting plate 3 without entering the internal space of the box, and the components such as the fan section and the evaporator section already installed in the box will not affect the installation and disassembly of the staff, which reduces the operating difficulty of the staff and greatly improves the convenience of disassembly and maintenance for the staff.

[0046] The connection device 1 provided in the present application can also be applied to other installation scenarios. For example, the connection device 1 can be used to install a first mounting plate 2 and a second mounting plate 3 with irregular external shapes; or, multiple connection devices 1 are used to install a first mounting plate 2 and a second mounting plate 3, such as Figure 4 As shown, the connection reliability between the first mounting plate 2 and the second mounting plate 3 is improved; of course, the connection device 1 can also be used in a scenario where there is sufficient installation space.

[0047] In one embodiment, Figure 5 and Figure 6 As shown, the connecting seat 11 has a connecting end 111 and a transmission end 112 that are relatively arranged. The middle part of the connecting seat 11 is rotatably arranged on the second mounting plate 3. The transmission end 112 of the connecting seat 11 is transmission-connected to an end of the sleeve 122 away from the second mounting plate 3, so that the connecting end 111 of the connecting seat 11 can be rotated away from the first mounting plate 2 to reach the second state, or the connecting end 111 of the connecting seat 11 can be rotated close to the first mounting plate 2 to reach the second state.

[0048] It can be understood that when it is necessary to tighten the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated, and under the transmission action of the sleeve 122 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to rotate away from the second mounting plate 3. Since the middle part of the connecting seat 11 is rotatably arranged on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move close to the first mounting plate 2 under the action of the lever principle until it reaches the first state. At this time, the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby realizing the fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is necessary to disassemble the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated in the opposite direction. Under the transmission action of the sleeve 122 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to rotate away from the second mounting plate 3. Since the middle part of the connecting seat 11 is rotatably arranged on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2 under the action of the lever principle until reaching the second state, and the connecting seat 11 is separated from the first mounting plate 2, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3, thereby improving the convenience of disassembly and maintenance.

[0049] In one embodiment, Figure 6 As shown, a connecting block 1211 is provided at one end of the torsion rod 121 close to the connecting seat 11, and a sleeve 122 is sleeved on the circumferential side of the connecting block 1211. The connecting block 1211 and the sleeve 122 are threadedly connected so that the sleeve 122 can reciprocate along the axial direction of the torsion rod 121; an articulated seat 1221 is provided at one end of the sleeve 122 away from the second mounting plate 3, and the transmission end 112 of the connecting seat 11 is hingedly connected to the articulated seat 1221.

[0050] It can be understood that the sleeve 122 is hingedly connected to the transmission end 112 of the connection seat 11, and the connection seat 11 is hingedly connected to the second mounting plate 3, which limits the freedom of the sleeve 122. Therefore, when the torsion bar 121 rotates, the connection block 1211 rotates together with the torsion bar 121. Under the threaded cooperation between the connection block 1211 and the sleeve 122, the rotational motion of the torsion bar 121 is converted into the linear motion of the sleeve 122, and the sleeve 122 can move back and forth along the axis direction of the torsion bar 121. An articulated seat 1221 is provided at one end of the sleeve 122 away from the second mounting plate 3, and the transmission end 112 of the connection seat 11 is hingedly connected to the articulated seat 1221. Under the linkage action of the articulated seat 1221 and the connection seat 11, the sleeve 122 moves back and forth along the axis direction of the torsion bar 121, driving the transmission end 112 of the connection seat 11 to move away from or close to the second mounting plate 3. Specifically, when it is necessary to tighten the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated, and the sleeve 122 can move away from the second mounting plate 3 along the axial direction of the torsion bar 121. Under the linkage action of the hinged seat 1221 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to rotate away from the second mounting plate 3. Since the middle part of the connecting seat 11 is rotatably arranged on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move close to the first mounting plate 2 under the action of the lever principle until it reaches the first state. At this time, the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby realizing the fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is necessary to disassemble the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated in the opposite direction, and the sleeve 122 can move close to the second mounting plate 3 along the axial direction of the torsion bar 121. Under the linkage action of the hinged seat 1221 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to move close to the second mounting plate 3. Since the middle part of the connecting seat 11 is rotatably arranged on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2 under the action of the lever principle until reaching the second state, and the connecting seat 11 is separated from the first mounting plate 2, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3, thereby improving the convenience of disassembly and maintenance.

[0051] In one embodiment, Figure 6 As shown, the inner wall of the sleeve 122 is provided with a first internal thread 1222, and the connecting block 1211 is provided with a first external thread matching the first internal thread 1222. The length of the first internal thread 1222 is adjusted based on the minimum distance between the connecting end 111 of the connecting seat 11 and the first mounting plate 2.

[0052] It can be understood that, under the cooperation of the first external thread of the connecting block 1211 and the first internal thread 1222 of the sleeve 122, the rotational motion of the torsion bar 121 is converted into the linear motion of the sleeve 122, and the sleeve 122 can reciprocate along the axial direction of the torsion bar 121. If the first internal thread 1222 and the first external thread are set as right-handed threads, then the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3, and the staff rotates the torsion bar 121 clockwise, and the sleeve 122 can move close to the second mounting plate 3 along the axial direction of the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the transmission end 112 of the connecting seat 11 can move close to the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2 until reaching the second state, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby realizing the disassembly and maintenance between the first mounting plate 2 and the second mounting plate 3. The staff rotates the torsion bar 121 counterclockwise, and the sleeve 122 can move away from the second mounting plate 3 along the axial direction of the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the transmission end 112 of the connecting seat 11 can move away from the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move close to the first mounting plate 2 until the first state is reached, and the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby achieving fixed installation between the first mounting plate 2 and the second mounting plate 3. The above describes the working process of using right-handed threads to achieve forward and reverse connection. On the contrary, if left-handed threads are used, this embodiment can achieve the effect of forward connection and reverse disassembly.

[0053] The length of the first internal thread 1222 determines the movement stroke of the sleeve 122, and also determines the rotation angle range of the connection seat 11 relative to the first mounting plate 2. If the minimum distance between the connection end 111 of the connection seat 11 and the first mounting plate 2 is larger when the connection seat 11 is in the second state, then the length of the first internal thread 1222 is correspondingly set to be longer, so that the rotation angle range of the connection seat 11 relative to the first mounting plate 2 is larger, so as to ensure that the connection end 111 of the connection seat 11 can move to connect with the first mounting plate 2. Conversely, if the minimum distance between the connection end 111 of the connection seat 11 and the first mounting plate 2 is smaller when the connection seat 11 is in the second state, then the length of the first internal thread 1222 is correspondingly set to be shorter, so that the rotation angle range of the connection seat 11 relative to the first mounting plate 2 is smaller, so as to ensure the stability of the connection between the connection end 111 of the connection seat 11 and the first mounting plate 2.

[0054] Furthermore, the first internal thread 1222 is provided with a self-locking thread section, which increases the friction between the connection block 1211 and the sleeve 122, so that the connection seat 11 is not easy to be loosened between the second mounting plate 3 and the first mounting plate 2 in the first state, and plays a self-locking role. For example, the root of the first internal thread 1222 of the sleeve 122 near one end of the connection seat 11 is provided with a wedge-shaped inclined surface, and the angle between the wedge-shaped inclined surface and the horizontal direction is 30°. When the self-locking spiral section of the sleeve 122 and the first external thread of the connection block 1211 are tightened with each other, the tooth tip of the connection block 1211 is tightly pressed against the wedge-shaped inclined surface of the self-locking thread section, thereby generating a large locking force. Due to the change in the angle of the tooth shape, the normal force generated by the contact between the threads is 60° with the axis of the connection block 1211, instead of 30° like ordinary threads. Obviously, the normal pressure of the thread is much greater than the tightening pressure, so the anti-loosening friction force generated will inevitably increase greatly, achieving self-locking. Due to the unique structure of the self-locking thread, the tips of all the connecting blocks 1211 are tightly pressed against the 30° wedge-shaped inclined plane, and the load borne by each tooth on the self-locking thread section is relatively uniform. The same load can be distributed to each surface and each point, so that the anti-loosening friction force generated at various locations on the thread is similar, which can effectively resist lateral vibration. In addition, each thread can bear the load evenly, there is no stress concentration, it is not easy to loosen or slip the thread, and the fatigue strength is also improved exponentially.

[0055] In one embodiment, Figure 2 As shown, the sleeve 122 and the connecting seat 11 are arranged on the same side of the second mounting plate 3, the first end of the torsion bar 121 passes through the second mounting plate 3 and is slidably connected to the sleeve 122, and the second end of the torsion bar 121 is exposed on the side of the second mounting plate 3 away from the connecting seat 11.

[0056] For the convenience of explanation and understanding, Figure 3As shown, a plurality of first mounting plates 2 are arranged to form a first box body 4, and a plurality of second mounting plates 3 are arranged to form a second box body 5. The first box body 4 and the second box body 5 are stacked up and down in the vertical direction. Then, the side of the first mounting plate 2 or the second mounting plate 3 facing away from the internal space of the second box body 5 can be called the outer side, and the side of the first mounting plate 2 or the second mounting plate 3 facing the internal space of the second box body 5 can be called the inner side. The sleeve 122 and the connecting seat 11 are arranged on the same side of the second mounting plate 3. For example, the sleeve 122 and the connecting seat 11 are both arranged on the inner side of the second mounting plate 3, and the second end of the torsion bar 121 is exposed on the outer side of the second mounting plate 3. It can be understood that when the first mounting plate 2 and the second mounting plate 3 need to be installed, the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3 and rotate the second end of the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move close to the first mounting plate 2 until the first state is reached, and the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby achieving fixed installation between the first mounting plate 2 and the second mounting plate 3. When the first mounting plate 2 and the second mounting plate 3 need to be disassembled, the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3 and rotate the second end of the torsion bar 121 in the opposite direction, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby achieving disassembly between the first mounting plate 2 and the second mounting plate 3. That is to say, the staff can remove or install the first mounting plate 2 and the second mounting plate 3 without entering the internal space of the box. The components such as the fan section and the evaporator section that have been installed inside the box will not affect the installation and disassembly of the staff, thereby reducing the operating difficulty of the staff and greatly improving the convenience of disassembly and maintenance for the staff.

[0057] Of course, this embodiment can be combined with the above-mentioned embodiments. In one example, a connecting block 1211 is provided at the first end of the torsion bar 121, and the sleeve 122 is sleeved on the peripheral side of the connecting block 1211. The connecting block 1211 and the sleeve 122 are threadedly connected so that the sleeve 122 can reciprocate along the axial direction of the torsion bar 121.

[0058] In the prior art, the screws are fixed on the outside of the box, and the screws are exposed on the outside of the first mounting plate 2 or the sheet metal, which affects the overall aesthetics of the household machine. Therefore, in order to improve the overall aesthetics, the present application designs a sunken groove so that the torsion bar 121 is hidden in the sunken groove. The specific design is described as follows.

[0059] In one embodiment, Figure 3 and Figure 8As shown, a first groove 31 is provided on the side of the second mounting plate 3 away from the connecting seat 11, and a knob 1212 is provided on the second end of the torsion bar 121, and the knob 1212 is rotatably provided on the first groove 31. The knob 1212 increases the force bearing area, which is convenient for the staff to operate. When the staff rotates the knob 1212, the torque can be transmitted to the torsion bar 121, so that the sleeve 122 moves back and forth along the axis direction of the torsion bar 121, thereby driving the connecting seat 11 to rotate relative to the first mounting plate 2, realizing the connection or separation of the connecting seat 11 and the first mounting plate 2, and achieving the purpose of disassembling and assembling the first mounting plate 2 and the second mounting plate 3. At the same time, due to the provision of the first groove 31, the knob 1212 is embedded in the first groove 31, and the knob 1212 will not protrude relative to the side of the second mounting plate 3 away from the connecting seat 11, achieving the effect of hiding the knob 1212, thereby improving the overall aesthetics of the household machine.

[0060] It should be noted that the shape of the first groove 31 can be set to be circular, square, trapezoidal, etc., and the overall visual effect of the household machine can be changed by changing the shape of the first groove 31. This application does not impose any specific restrictions on this.

[0061] Furthermore, if Figure 3 and Figure 8 As shown, a circular convex rib 32 is provided on the side of the second mounting plate 3 away from the connecting seat 11, and a second groove 1213 is provided on the knob 1212, and the convex rib 32 is rotatably connected to the second groove 1213. By providing the circular convex rib 32, the convex rib 32 is rotatably connected to the second groove 1213, and when the staff turns the knob 1212, the convex rib 32 limits the rotation direction of the knob 1212, which can improve the staff's operating feel on the one hand, and improve the stability of the rotation of the torsion bar 121 on the other hand, and avoid the shaking of the torsion bar 121 in the horizontal direction, so that the sleeve 122 can stably reciprocate along the axial direction of the torsion bar 121, thereby improving the accuracy of the positioning of the connecting seat 11 and the first mounting plate 2 of the connecting seat 11.

[0062] In one embodiment, Figure 7As shown, the torsion assembly 12 includes a spring 13, which is sleeved on the circumferential side of the sleeve 122. The first end of the spring 13 is connected to the second mounting plate 3, and the second end of the spring 13 is connected to the transmission end 112 of the connecting seat 11. It should be noted that the spring 13 is always in a compressed state. When the first mounting plate 2 and the second mounting plate 3 need to be disassembled, the torsion bar 121 is rotated. Under the transmission action of the sleeve 122 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to move closer to the second mounting plate 3, and the spring 13 is compressed more severely. At this time, it is necessary to overcome the elastic force of the spring 13 so that the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2 under the action of the lever principle until it reaches the second state, thereby completing the disassembly of the first mounting plate 2 and the second mounting plate 3. When the first mounting plate 2 and the second mounting plate 3 need to be installed, the torsion bar 121 is rotated. Under the transmission action of the sleeve 122 and the connecting seat 11, the sleeve 122 drives the transmission end 112 of the connecting seat 11 to move away from the second mounting plate 3, so that the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2 under the action of the lever principle until it reaches the second state. In this process, since the spring 13 is always in a compressed state, the elastic force of the spring 13 can be used to apply a reverse force to the transmission end 112 of the connecting seat 11, so that the connection state between the connecting end 111 of the connecting seat 11 and the first mounting plate is more stable.

[0063] Correspondingly, if the first internal thread 1222 and the first external thread are set as right-hand threads, the staff rotates the torsion bar 121 clockwise, and the sleeve 122 can move along the axis direction of the torsion bar 121 close to the second mounting plate 3, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, the transmission end 112 of the connecting seat 11 can move close to the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2, and the spring 13 is gradually compressed more severely until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other. The staff rotates the torsion bar 121 counterclockwise, and the sleeve 122 can move along the axis direction of the torsion bar 121 away from the second mounting plate 3, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, the transmission end 112 of the connecting seat 11 can move away from the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move close to the first mounting plate 2, until the first state is reached, and the connecting seat 11 and the first mounting plate 2 are connected to each other. In the above process, for the spring, the effect of tightening in the forward direction and loosening in the reverse direction can be achieved. Conversely, setting the first internal thread 1222 and the first external thread as left-handed threads can achieve the effect of loosening in the forward direction and tightening in the reverse direction for the spring.

[0064] Optionally, a third groove is provided on the side of the second mounting plate 3 facing the connecting seat 11, and the third groove is arranged in an annular shape. The first end of the spring 13 is embedded in and connected to the third groove and fixedly connected to the second mounting plate 3; a fourth groove is provided on the side of the connecting seat 11 facing the second mounting plate 3, and the fourth groove is arranged in an annular shape. The second end of the spring 13 is embedded in and connected to the fourth groove and fixedly connected to the connecting seat 11.

[0065] The detachable connection between the aforementioned connecting seat 11 and the first mounting plate 2 can be achieved in a variety of ways. For example, a card slot is provided on the first mounting plate 2, and a buckle is provided on the connecting seat 11 to be snap-connected to the card slot; or, a pin hole is provided on the first mounting plate 2, and a pin shaft is provided on the connecting seat 11 to be snap-connected to the pin hole; of course, it can also be achieved through other detachable connection structures.

[0066] In one embodiment, a first staple is provided at the connection end 111 of the connection seat 11, a first pin hole is provided on the first mounting plate 2, and the first staple is connected by snapping with the first pin hole. Specifically, a first pin hole is provided on the side of the first mounting plate 2 facing the connection seat 11, and a fastening installation between the first mounting plate 2 and the second mounting plate 3 can be achieved by setting a snap connection between the first staple and the first pin hole. When the first mounting plate 2 and the second mounting plate 3 need to be connected, the torsion bar 121 is rotated so that the sleeve 122 drives the connection seat 11 to rotate relative to the second mounting plate 3, and the end of the connection seat 11 away from the sleeve 122 can move close to the first mounting plate 2 until it reaches the first state, and the first staple is connected by snapping with the first pin hole, thereby achieving a fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is necessary to disassemble the first mounting plate 2 and the second mounting plate 3, the torsion bar 121 is rotated in the opposite direction so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3. The end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until it reaches the second state, and the first clamp is disengaged from the first pin hole, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3. The staff does not need to operate on both sides of the first mounting plate 2 or the second mounting plate 3 at the same time, thereby improving the convenience of disassembly and maintenance.

[0067] Furthermore, a tip is provided at one end of the first staple away from the connection seat 11, which is conducive to positioning the first staple and the first pin hole. As the end of the connection seat 11 away from the sleeve 122 continues to move closer to the first mounting plate 2, the first staple is gradually inserted into the first pin hole. When the first staple is clamped tightly against the first pin hole, the fastening installation of the first mounting plate 2 and the second mounting plate 3 is completed.

[0068] It should be noted that the first clamp and the connecting seat 11 can be fixed by welding or by threaded connection, and the present application does not impose any specific restrictions on this.

[0069] In one embodiment, a plurality of first staples are provided, the plurality of first staples are arranged at intervals, a plurality of first pin holes are provided, and the plurality of first pin holes are connected to the first staples one by one. The torsion bar 121 is rotated, and as the end of the connection seat 11 away from the sleeve 122 continues to move closer to the first mounting plate 2, the plurality of first staples can be respectively inserted into the corresponding first pin holes. When the plurality of first staples are clamped with the corresponding first pin holes, the first mounting plate 2 and the second mounting plate 3 are fastened, thereby improving the connection reliability of the first mounting plate 2 and the second mounting plate 3.

[0070] In a preferred embodiment, three first staples are provided. Since three points determine a plane, the flatness of the connection between the connecting seat 11 and the first mounting plate 2 can be further improved, thereby avoiding uneven force between the connecting seat 11 and the first mounting plate 2 and local warping.

[0071] It should be emphasized that the first mounting plate 2 and the second mounting plate 3 can be made of sheet metal or hard plastic. If sheet metal is used, since the structural strength of sheet metal is relatively large, generally speaking, a thinner sheet metal can be used to achieve good supporting strength.

[0072] In one embodiment, Figure 6 As shown, a first bracket 33 is provided on the second mounting plate 3, a hinge 113 is provided in the middle of the connecting seat 11, the hinge 113 includes a first surface and a second surface intersecting each other, the first surface of the hinge 113 is connected to the side of the connecting seat 11 facing the second mounting plate 3, and the second surface of the hinge 113 is connected to the first bracket 33. Specifically, the first mounting plate 2 and the second mounting plate 3 are both made of sheet metal, the end of the second mounting plate 3 close to the first mounting plate 2 is bent toward the direction close to the connecting seat 11 to form a bent portion, the first bracket 33 is also made of sheet metal, the first bracket 33 is welded and connected to the bent portion, the first surface of the hinge 113 is connected to the side of the connecting seat 11 facing the second mounting plate 3 by screws, and the second surface of the hinge 113 is connected to the first bracket 33 by screws. Such a configuration can ensure the structural strength while avoiding the exposure of the screws, thereby improving the overall aesthetics.

[0073] When different sheet metal parts are used to surround and form a box, in order to avoid opening pin holes on the first mounting plate 2 and exposing the nails, a bracket with holes can be set on the first mounting plate 2 to improve the overall aesthetics. The specific design is described as follows.

[0074] In one embodiment, Figure 6As shown, the first mounting plate 2 is provided with a second bracket 21 on the side facing the connecting seat 11, the connecting end 111 of the connecting seat 11 is provided with a second staple 114, the second bracket 21 is provided with a second pin hole 211, and the second staple 114 is connected by clamping with the second pin hole 211. Specifically, the first mounting plate 2 and the second bracket 21 are connected by welding. Such a setting can ensure the structural strength while avoiding the exposure of the staple, thereby improving the overall aesthetics. It can be understood that when the first mounting plate 2 or the second mounting plate 3 needs to be installed, the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3, apply external force to rotate the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move close to the first mounting plate 2 until it reaches the first state, and the first staple is connected by clamping with the first pin hole, thereby realizing the fixed installation between the first mounting plate 2 and the second mounting plate 3. Of course, when the first mounting plate 2 and the second mounting plate 3 need to be disassembled, the torsion bar 121 is rotated in the opposite direction, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3. During the disassembly process, the staff does not need to operate on both sides of the first mounting plate 2 or the second mounting plate 3 at the same time, which improves the convenience of installation and disassembly maintenance.

[0075] In one embodiment, a plugging cover (not shown in the figure) is provided on the second mounting plate 3, and the plugging cover is closed on the first groove 31. After installation, the knob 1212 can be prevented from being exposed, so that the side of the second mounting plate 3 away from the connecting seat 11 can achieve the effect of hiding the knob 1212, thereby improving the overall aesthetics. If disassembly is required, the plugging cover is first removed, and then the torsion bar 121 is rotated, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby realizing the disassembly between the first mounting plate 2 and the second mounting plate 3.

[0076] The embodiment of the present application further provides a household machine, comprising a first mounting plate 2, a second mounting plate 3 and the connecting device 1 as described above.

[0077] The first mounting plate 2 and the second mounting plate 3 can be stacked up and down in the vertical direction, or stacked left and right in the horizontal direction. Figure 3As shown, the first mounting plate 2 and the second mounting plate 3 can be stacked up and down in the vertical direction, and the application scenario of installation using the connection device 1 provided in the embodiment of the present application is shown. A plurality of first mounting plates 2 are arranged to form a first box body 4, and a plurality of second mounting plates 3 are arranged to form a second box body 5. The first box body 4 and the second box body 5 are stacked up and down in the vertical direction. Then, the side of the first mounting plate 2 or the second mounting plate 3 facing away from the internal space of the second box body 5 can be called the outer side, and the side of the first mounting plate 2 or the second mounting plate 3 facing the internal space of the second box body 5 can be called the inner side.

[0078] It is understandable that when the first mounting plate 2 and the second mounting plate 3 need to be installed, the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3, apply external force to rotate the torsion bar 121, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move close to the first mounting plate 2 until the first state is reached, and the connecting seat 11 and the first mounting plate 2 are connected to each other, thereby achieving fixed installation between the first mounting plate 2 and the second mounting plate 3. When the first mounting plate 2 and the second mounting plate 3 need to be disassembled, the staff can stand on the outside of the first mounting plate 2 or the second mounting plate 3, and rotate the torsion bar 121 in the opposite direction, so that the sleeve 122 drives the connecting seat 11 to rotate relative to the second mounting plate 3, and the end of the connecting seat 11 away from the sleeve 122 can move away from the first mounting plate 2 until the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby achieving disassembly between the first mounting plate 2 and the second mounting plate 3. In other words, the staff can remove or install the first mounting plate 2 and the second mounting plate 3 without entering the internal space of the box. The components such as the fan section and the evaporator section that have been installed inside the box will not affect the installation and disassembly of the staff, which reduces the operating difficulty of the staff and greatly improves the convenience of disassembly and maintenance for the staff.

[0079] It should be understood that the terms used herein are only for the purpose of describing specific example embodiments and are not intended to be limiting. Unless the context clearly indicates otherwise, the singular forms "one", "an" and "said" as used herein may also be meant to include plural forms. The terms "include", "comprise", "contain", and "have" are inclusive, and therefore specify the existence of stated features, steps, operations, elements and / or parts, but do not exclude the existence or addition of one or more other features, steps, operations, elements, parts, and / or combinations thereof. The method steps, processes, and operations described herein are not interpreted as necessarily requiring them to be performed in the specific order described or illustrated, unless the execution order is clearly indicated. It should also be understood that additional or alternative steps may be used.

[0080] Although the terms first, second, third, etc. can be used in the text to describe multiple elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms can only be used to distinguish an element, component, region, layer or section from another region, layer or section. Unless the context clearly indicates, terms such as "first", "second" and other numerical terms do not imply order or sequence when used in the text. Therefore, the first element, component, region, layer or section discussed below can be referred to as the second element, component, region, layer or section without departing from the teaching of the example embodiments.

[0081] The foregoing is merely a specific embodiment of the present invention, which enables those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features claimed herein.

Claims

1. A connecting device for connecting a first mounting plate and a second mounting plate, characterized in that: The connecting device comprises: A connecting seat, rotatably disposed on the second mounting plate, the connecting seat being detachably connected to the first mounting plate; The torsion assembly comprises a torsion bar and a sleeve, wherein the torsion bar is rotatably arranged on the second mounting plate, the sleeve is movably sleeved on the circumference of the torsion bar, and the sleeve is transmission-connected to the connecting seat; Wherein, when the torsion bar rotates along its own axial direction, the sleeve can drive the connecting seat to rotate relative to the second mounting plate, so that the connecting seat has a first state connected to the first mounting plate and a second state separated from the first mounting plate.

2. The connection device according to claim 1, characterized in that: The connecting seat has a connecting end and a transmission end that are relatively arranged. The middle part of the connecting seat is rotatably arranged on the second mounting plate. The transmission end of the connecting seat is transmission-connected to an end of the sleeve away from the second mounting plate, so that the connecting end of the connecting seat can be rotated away from the first mounting plate to reach the second state, or the connecting end of the connecting seat can be rotated close to the first mounting plate to reach the second state.

3. The connection device according to claim 2, characterized in that: A connecting block is provided at one end of the torsion bar close to the connecting seat, the sleeve is sleeved on the peripheral side of the connecting block, and the connecting block and the sleeve are threadedly connected so that the sleeve can reciprocate along the axial direction of the torsion bar; An articulated seat is arranged at one end of the sleeve away from the second mounting plate, and the transmission end of the connecting seat is hingedly connected to the articulated seat.

4. The connection device according to claim 3, characterized in that: The inner wall of the sleeve is provided with a first internal thread, the connecting block is provided with a first external thread matching the first internal thread, and the length of the first internal thread is adjusted based on the minimum distance between the connecting end of the connecting seat and the first mounting plate.

5. The connection device according to claim 1, characterized in that: The sleeve and the connecting seat are arranged on the same side of the second mounting plate, the first end of the torsion bar passes through the second mounting plate and is slidably connected to the sleeve, and the second end of the torsion bar is exposed on a side of the second mounting plate away from the connecting seat.

6. The connection device according to claim 5, characterized in that: A first groove is arranged on a side of the second mounting plate away from the connecting seat, and a knob is arranged on the second end of the torsion bar, and the knob is rotatably arranged on the first groove.

7. The connection device according to claim 6, characterized in that: A convex rib is arranged on one side of the second mounting plate away from the connecting seat, a second groove is arranged on the knob, and the convex rib is rotatably connected to the second groove.

8. The connection device according to claim 6, characterized in that: The second mounting plate is provided with a blocking cover, and the blocking cover covers the first groove.

9. The connection device according to claim 2, characterized in that: The torsion assembly includes a spring, which is sleeved on the circumference of the sleeve, the first end of the spring is connected to the back side of the second mounting plate, and the second end of the spring is connected to the transmission end of the connecting seat.

10. The connection device according to claim 2, characterized in that: The connecting end of the connecting seat is provided with a first clamping nail, the first mounting plate is provided with a first pin hole, and the first clamping nail is clamped and connected with the first pin hole.

11. The connection device according to claim 10, characterized in that: The first staples are provided in plurality, and the plurality of the first staples are arranged at intervals. The first pin holes are provided in plurality, and the plurality of the first pin holes are connected to the first staples in a one-to-one correspondence.

12. The connection device according to claim 1, characterized in that A first bracket is arranged on the second mounting plate, a hinge is arranged in the middle of the connecting seat, the hinge comprises a first surface and a second surface intersecting each other, the first surface of the hinge is connected to a side of the connecting seat facing the second mounting plate, and the second surface of the hinge is connected to the first bracket.

13. The connection device according to claim 2, characterized in that: A second bracket is provided on one side of the first mounting plate facing the connecting seat, a second staple is provided on the connecting end of the connecting seat, a second pin hole is provided on the second bracket, and the second staple is connected with the second pin hole by snapping.

14. A household machine, characterized in that: It comprises a first mounting plate, a second mounting plate and a connecting device as claimed in any one of claims 1 to 13, wherein the connecting device is used to connect the first mounting plate and the second mounting plate.

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