Connection device and domestic machine

Abstract

The application relates to a connecting device and a household machine, the connecting device comprising: a connecting seat rotatably arranged on a second mounting plate, the connecting seat being detachably connected with a first mounting plate; a torsion assembly comprising a torsion rod and a sleeve, the torsion rod being rotatably arranged on the second mounting plate, the sleeve being movably sleeved on the circumferential side of the torsion rod, and the sleeve being in transmission connection with the connecting seat; wherein, in the case that the torsion rod rotates along the axial direction of the torsion rod, the sleeve can drive the connecting seat to rotate relative to the second mounting plate, so that the connecting seat has a first state of being connected with the first mounting plate and a second state of being separated from the first mounting plate. The first mounting plate and the second mounting plate can be detached or installed without entering the internal space of the household machine, the operation difficulty of the workers is reduced, and the convenience of the workers in detaching and maintaining is greatly improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air conditioners, and particularly relates to a connecting device and a household machine. BACKGROUND

[0002] With the progress of society, the consumption level of users is continuously improved, and the market share of household machines is gradually improved. The household machine is a wind-cooled air-cooled machine set, which is generally installed in an attic or a corridor. The household machine has a higher requirement for the installation environment, and a larger installation space needs to be reserved in advance. At present, the fan section and the evaporator section of the household machine are respectively installed in different sheet metal boxes.

[0003] In the related art, the positioning of different sheet metal parts is generally performed through spot welding pins, and screws are used for connection. Since the fan section and the evaporator section are respectively installed in different sheet metal parts, the internal operation space of the sheet metal part is small, so that the worker does not have enough operation space when disassembling and maintaining, and the disassembly and maintenance is troublesome. SUMMARY

[0004] The present application provides a connecting device and a household machine to solve the technical problem that the existing household machine is installed in a manner of spot welding pins and screws, the internal operation space of the household machine is small, so that the worker does not have enough operation space when disassembling and maintaining, and the disassembly and maintenance is 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 arranged on the second mounting plate, the connecting seat being detachably connected with the first mounting plate;

[0007] a torsion assembly comprising a torsion rod and a sleeve, the torsion rod being rotatably arranged on the second mounting plate, the sleeve being movably sleeved on the circumferential side of the torsion rod, and the sleeve being in transmission connection with the connecting seat;

[0008] Wherein, in the case that the torsion rod rotates along its own axis 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 of being connected with the first mounting plate and a second state of being separated from the first mounting plate.

[0009] In a possible implementation, the connecting seat has oppositely arranged connecting end and transmission end, the middle part of the connecting seat is rotationally arranged on the second mounting plate, and the transmission end of the connecting seat is in transmission connection with one 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, one end of the torsion bar close to the connecting seat is provided with a connecting block, the sleeve is sleeved on the periphery of the connecting block, and the connecting block is in threaded connection with the sleeve, so that the sleeve moves back and forth along the axis direction of the torsion bar.

[0011] One end of the sleeve away from the second mounting plate is provided with a hinged seat, and the transmission end of the connecting seat is in hinged connection with the hinged seat.

[0012] In a 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 matched with 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 penetrates through the second mounting plate and is in sliding connection with the sleeve, and the second end of the torsion bar is exposed to the side of the second mounting plate away from the connecting seat.

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

[0015] In a possible implementation, the side of the second mounting plate away from the connecting seat is provided with a convex rib, the knob is provided with a second groove, and the convex rib is in rotational connection with the second groove.

[0016] In a possible implementation, the second mounting plate is provided with a plug, and the plug covers the first groove.

[0017] In a possible implementation, the torsion assembly comprises a spring, the spring is sleeved on the periphery of the sleeve, the first end of the spring is connected with the back surface of the second mounting plate, and the second end of the spring is connected with the transmission end of the connecting seat.

[0018] In a possible implementation, the connecting end of the connecting seat is provided with a first clamping pin, and the first mounting plate is provided with a first pin hole, and the first clamping pin is connected with the first pin hole in a clamping manner.

[0019] In a possible implementation, a plurality of first clamping pins are provided, and the first clamping pins are arranged at intervals, and a plurality of first pin holes are provided on the first mounting plate, and the first pin holes are connected with the first clamping pins in a one-to-one manner.

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

[0021] In a possible implementation, a second support is arranged on a side of the first mounting plate facing the connecting seat, a second clamping pin is arranged on the connecting end of the connecting seat, a second pin hole is arranged on the second support, and the second clamping pin is connected with the second pin hole in a clamping manner.

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

[0023] Compared with the prior art, the above technical solutions provided by the embodiments of the application have the following advantages:

[0024] The connecting device and the household machine provided by the embodiment of the application can rotate the torsion rod along the axial direction of the torsion rod under the action of external force when the first mounting plate and the second mounting plate need to be installed or dismounted. The external force can be a torsion force applied by the worker or a driving force applied by other driving members. When the first mounting plate and the second mounting plate need to be fastened, the torsion rod 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 to be close to the first mounting plate until the first state is reached, the connecting seat and the first mounting plate are connected to each other, so that the first mounting plate and the second mounting plate are fixedly mounted. When the first mounting plate and the second mounting plate need to be dismounted, the torsion rod is reversely 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 to be away from the first mounting plate until the second state is reached, the connecting seat and the first mounting plate are separated from each other, so that the first mounting plate and the second mounting plate are dismounted. The worker does not need to operate on both sides of the first mounting plate or the second mounting plate at the same time, and the convenience of dismounting and maintenance is improved. The worker can dismount or install the first mounting plate and the second mounting plate without entering the internal space of the household machine box, and the internal components of the household machine do not affect the installation and dismounting of the worker, so that the operation difficulty of the worker is reduced, and the convenience of the worker in dismounting and maintenance is greatly improved. BRIEF DESCRIPTION OF DRAWINGS

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

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the application or in the prior art, the accompanying drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings according to these drawings without any creative effort.

[0027] One or more embodiments are exemplarily illustrated by pictures in the drawings corresponding to the embodiments, and the exemplarily illustrations do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings represent similar elements, unless otherwise specified. The drawings do not constitute a proportional limitation.

[0028] Figure 1 A structural schematic diagram of a connecting device provided by an embodiment of the application is shown in the figure.

[0029] Figure 2 A working state of the connecting device shown in the figure Figure 1 Figure 1 ;

[0030] Figure 3 A​Figure 1 Working state of the connecting device shown Figure 2

[0031] Figure 4 For Figure 1 Working state of the connecting device shown Figure 3

[0032] Figure 5 For Figure 2 Sectional view of the connecting device shown, wherein the connecting seat is in the first state

[0033] Figure 6 For Figure 5 Enlarged view of A in FIG. 1

[0034] Figure 7 Structural schematic view of a connecting device provided by another embodiment of the present application

[0035] Figure 8 For Figure 3 Enlarged view of B in FIG. 1

[0036] Explanation of reference signs:

[0037] 1, connecting device; 11, connecting seat; 111, connecting end; 112, transmission end; 113, hinge; 114, second clamping nail; 12, torsion assembly; 121, torsion rod; 1211, connecting block; 1212, knob; 1213, second groove; 122, sleeve; 1221, hinged seat; 1222, first internal thread; 13, spring; 2, first mounting plate; 21, second support; 211, second pin hole; 3, second mounting plate; 31, first groove; 32, convex rib; 33, first support; 4, first box body; 5, second box body. DETAILED DESCRIPTION

[0038] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present application.

[0039] ​​The following disclosure provides many different embodiments, or examples, for implementing different structures of the present application. For the purpose of simplifying the present application, the components and arrangements of the specific examples are described in the following. Of course, they are merely examples and are not intended to limit the present application. Furthermore, the present application can repeatedly refer to reference numerals and / or letters in different examples. Such repetition is for the purpose of simplification and clarity, and does not indicate the relationship between the various embodiments and / or arrangements being discussed.

[0040] For the purpose of description, spatial relative terms can be used in the text to describe the relative position relationship or movement of one element or feature with respect to another element or feature as shown in the figure, such as "internal", "external", "inboard", "outboard", "under", "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 is flipped over or the posture is changed or the movement state is changed, the directional indications will also change accordingly, for example: the element described as "under" or "below" other elements or features will be oriented as "above" or "above" other elements or features. Therefore, the example term "below" can include both the up and down positions. The device can be additionally oriented (rotated 90 degrees or in other directions) and the spatial relative relationship descriptors used in the text are interpreted accordingly.

[0041] In the related art, the fan section and the evaporator section of the household machine are respectively installed in different sheet metal boxes, and the boxes are formed by surrounding a plurality of sheet metal pieces. Generally, the positioning of different sheet metal pieces is performed by spot welding pins, and screws are used for connection. Since the fan section and the evaporator section have been respectively installed in different boxes, the internal operation space of the box is small, which causes the worker to have insufficient operation space when disassembling and repairing, and the disassembly and repair is more troublesome.

[0042] In order to solve the technical problem that the existing household machine adopts the mode of spot welding pins and screws for installation, and the internal operation space of the household machine is small, which causes the worker to have insufficient operation space when disassembling and repairing, and the disassembly and repair is more troublesome, the application provides a connecting device and a household machine, which can realize the disassembly or installation of the first mounting plate and the second mounting plate without entering the internal space of the household machine, reduce the operation difficulty of the worker, and greatly improve the convenience of disassembly and repair of the worker.

[0043] Figures 1-2A connecting device 1 provided by the application is used for connecting a first mounting plate 2 and a second mounting plate 3, and comprises a connecting seat 11 and a torsion assembly 12. The connecting seat 11 is rotatably arranged on the second mounting plate 3 and detachably connected with the first mounting plate 2. The torsion assembly 12 comprises a torsion rod 121 and a sleeve 122. The torsion rod 121 is rotatably arranged on the second mounting plate 3, and the sleeve 122 is movably sleeved on the circumferential side of the torsion rod 121. The sleeve 122 is in driving connection with the connecting seat 11. In the case that the torsion rod 121 rotates along its own axis 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 of being connected with the first mounting plate 2 and a second state of being separated from the first mounting plate 2.

[0044] It can be understood that, when the first mounting plate 2 and the second mounting plate 3 need to be installed or disassembled, the torsion rod 121 rotates along its own axis direction under the action of an external force. The external force can be a torsion force applied by a worker or a driving force applied by other driving members. When the first mounting plate 2 and the second mounting plate 3 need to be fastened, the torsion rod 121 is rotated, 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 close to the first mounting plate 2 until the first state is reached, and the connecting seat 11 is connected with the first mounting plate 2, thereby realizing the 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 torsion rod 121 is reversely rotated, 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 the second state is reached, 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. The worker 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 installed in a vertical direction and stacked up or installed in a horizontal direction and stacked left and right. Figure 2 As shown in FIG. 1, an application scenario in which the first mounting plate 2 and the second mounting plate 3 are installed in a vertical direction and stacked up by using the connecting device 1 provided by the application is shown. In order to further illustrate the beneficial effects that can be achieved by the application, FIG. 2 shows an application scenario in which the first mounting plate 2 and the second mounting plate 3 are installed in a horizontal direction and stacked left and right by using the connecting device 1 provided by the application. Figure 3As shown, the first mounting plates 2 surround to form the first cabinet 4, and the second mounting plates 3 surround to form the second cabinet 5. The first cabinet 4 and the second cabinet 5 are stacked vertically. The side of the first mounting plate 2 or the second mounting plate 3 away from the interior space of the second cabinet 5 is referred to as the outer side, and the side of the first mounting plate 2 or the second mounting plate 3 facing the interior space of the second cabinet 5 is referred to as the inner side. When the first mounting plate 2 and the second mounting plate 3 need to be installed, the worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, apply an external force to rotate the torsion rod 121, 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 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 the 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 worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, rotate the torsion rod 121 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 the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby achieving the disassembly between the first mounting plate 2 and the second mounting plate 3. That is, the worker does not need to enter the interior space of the cabinet to achieve the disassembly or installation of the first mounting plate 2 and the second mounting plate 3. The fan section and the evaporator section and other components already installed in the interior space of the cabinet will not affect the installation and disassembly of the worker, thereby reducing the operation difficulty of the worker and greatly improving the convenience of the worker in disassembly and maintenance.

[0046] The connecting device 1 provided by the present application can also be applied to other installation scenes. For example, the connecting device 1 can be used to install the first mounting plate 2 and the second mounting plate 3 with irregular external shapes. Alternatively, a plurality of connecting devices 1 are used to install the first mounting plate 2 and the second mounting plate 3, as shown in Figure 4 to improve the connection reliability of the first mounting plate 2 and the second mounting plate 3. Of course, the connecting device 1 can also be used in scenes where the installation space is sufficient.

[0047] In one embodiment, as shown in Figure 5 and Figure 6 the connecting seat 11 has oppositely arranged connecting end 111 and transmission end 112. 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 in transmission connection with the end of the sleeve 122 away from the second mounting plate 3, so that the connecting end 111 of the connecting seat 11 can rotate away from the first mounting plate 2 to reach the second state, or the connecting end 111 of the connecting seat 11 can rotate close to the first mounting plate 2 to reach the second state.

[0048] Understandably, when it is necessary to fasten the first mounting plate 2 and the second mounting plate 3, 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 rotate away from the second mounting plate 3. Since the middle part of the connecting seat 11 is rotatably set on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move closer 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 set 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 it reaches the second state, where 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 and improving the convenience of disassembly and maintenance.

[0049] In one embodiment, such as Figure 6 As shown, a connecting block 1211 is provided at one end of the torsion bar 121 near the connecting seat 11, and a sleeve 122 is sleeved on the periphery of the connecting block 1211. The connecting block 1211 and the sleeve 122 are threadedly connected so that the sleeve 122 reciprocates along the axial direction of the torsion bar 121. A hinge seat 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 hinge seat.

[0050] Understandably, the sleeve 122 is hinged to the transmission end 112 of the connecting seat 11, and the connecting seat 11 is hinged to the second mounting plate 3, restricting the freedom of the sleeve 122. Therefore, when the torsion bar 121 rotates, the connecting block 1211 rotates along with the torsion bar 121. Under the threaded engagement of the connecting block 1211 and the sleeve 122, the rotational motion of the torsion bar 121 is converted into the linear motion of the sleeve 122, allowing the sleeve 122 to reciprocate along the axial direction of the torsion bar 121. A hinge seat is provided at the end of the sleeve 122 away from the second mounting plate 3, and the transmission end 112 of the connecting seat 11 is hinged to the hinge seat. Under the linkage of the hinge seat and the connecting seat 11, the sleeve 122 reciprocates along the axial direction of the torsion bar 121, causing the transmission end 112 of the connecting seat 11 to move away from or towards the second mounting plate 3. Specifically, when it is necessary to fasten 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 axis of the torsion bar 121. Under the linkage of the hinge seat 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 set on the second mounting plate 3, the connecting end 111 of the connecting seat 11 can move closer 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. The sleeve 122 can move closer to the second mounting plate 3 along the axis of the torsion bar 121. Under the linkage of the hinge seat 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. Since the middle part of the connecting seat 11 is rotatably set 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 the second state is reached. 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, which improves the convenience of disassembly and maintenance.

[0051] In one embodiment, such as 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 that mates with 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 outer thread of the connecting block 1211 and the first inner thread 1222 of the sleeve 122, the rotary 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 inner thread 1222 and the first outer thread are set as right-handed threads, then the worker can stand outside the first mounting plate 2 or the second mounting plate 3, and the worker rotates the torsion bar 121 clockwise, so that the sleeve 122 can move along the axial direction of the torsion bar 121 to approach 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 driving end 112 of the connecting seat 11 can move to approach the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move to 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, so as to realize the disassembly and maintenance between the first mounting plate 2 and the second mounting plate 3. The worker rotates the torsion bar 121 counterclockwise, so that the sleeve 122 can move along the axial direction of the torsion bar 121 to move 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 driving end 112 of the connecting seat 11 can move to move away from the second mounting plate 3, and the connecting end 111 of the connecting seat 11 can move to approach the first mounting plate 2, until reaching the first state, the connecting seat 11 and the first mounting plate 2 are connected to each other, so as to realize the fixed installation between the first mounting plate 2 and the second mounting plate 3. The above describes the working process of achieving clockwise disassembly and counterclockwise connection by using right-handed threads, and vice versa. If left-handed threads are used, the embodiment can achieve clockwise connection and counterclockwise disassembly.

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

[0054] Further, the first internal thread 1222 is provided with a self-locking thread segment, which improves the friction between the connecting block 1211 and the sleeve 122, so that the connecting 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 tooth bottom of the first internal thread 1222 at the end of the sleeve 122 close to the connecting seat 11 is provided with a wedge-shaped slope, and the included angle between the wedge-shaped slope and the horizontal direction is 30°. When the self-locking thread segment of the sleeve 122 and the first external thread of the connecting block 1211 are tightened with each other, the tooth tip of the connecting block 1211 is tightly pressed on the wedge-shaped slope of the self-locking thread segment, so that a large locking force is generated. Due to the change of the angle of the tooth shape, the normal force generated by the contact between the threads and the axis of the connecting block 1211 is 60°, instead of 30° as in ordinary threads. Obviously, the normal pressure of the thread is much larger than the tightening pressure, so the anti-loosening friction generated is necessarily greatly increased, and self-locking is achieved. The self-locking thread has a unique structure, the tooth tip of the connecting block 1211 is tightly pressed on the 30° wedge-shaped slope, and the load borne by each tooth on the self-locking thread segment is relatively uniform, so that the same load is dispersed to each face and each point, so that the anti-loosening friction generated at each place on the thread is similar, which can effectively resist lateral vibration. Moreover, the load borne by each thread is uniform, there is no stress concentration, and the problem of loosening or tooth slipping is not easy to occur, and the fatigue strength is also improved by several times.

[0055] In one embodiment, as shown in Figure 2 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 penetrates through the second mounting plate 3 and is in sliding connection with the sleeve 122, and the second end of the torsion bar 121 is exposed to the side of the second mounting plate 3 away from the connecting seat 11.

[0056] For the convenience of description and understanding, as Figure 3As shown, the plurality of first mounting plates 2 surround to form the first cabinet 4, and the plurality of second mounting plates 3 surround to form the second cabinet 5, and the first cabinet 4 and the second cabinet 5 are stacked vertically, then the side of the first mounting plate 2 or the second mounting plate 3 away from the internal space of the second cabinet 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 cabinet 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 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. Then it can be understood that when the first mounting plate 2 and the second mounting plate 3 need to be installed, the worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, 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 reaching 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 the first mounting plate 2 and the second mounting plate 3 need to be disassembled, the worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, and reversely 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 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 between the first mounting plate 2 and the second mounting plate 3. That is, the worker does not need to enter the internal space of the cabinet to realize the disassembly or installation of the first mounting plate 2 and the second mounting plate 3, and the fan section and the evaporator section and other components already installed in the internal space of the cabinet will not affect the installation and disassembly of the worker, thereby reducing the operation difficulty of the worker and greatly improving the convenience of the worker in disassembly and maintenance.

[0057] Of course, the present embodiment can be combined with the foregoing embodiments, and in one example, the first end of the torsion bar 121 is provided with a connecting block 1211, the sleeve 122 is sleeved on the circumferential side of the connecting block 1211, and the connecting block 1211 is threadedly connected with the sleeve 122 to enable the sleeve 122 to reciprocate along the axis direction of the torsion bar 121.

[0058] In the prior art, the screw is fixed outside the cabinet, and the screw is exposed on the outer side of the first mounting plate 2 or the sheet metal part, which affects the overall aesthetics of the household machine. Therefore, in order to improve the overall aesthetics, the present application designs a sunken groove to hide the torsion bar 121 in the sunken groove, and the specific design is as follows.

[0059] In one embodiment, as Figure 3 and Figure 8As shown, the second mounting plate 3 away from the side of the connecting seat 11 is provided with a first recess 31, and the second end of the torsion bar 121 is provided with a knob 1212 which is rotationally arranged on the first recess 31. The knob 1212 increases the force area, which facilitates the operation of the staff. When the staff rotates the knob 1212, the torque can be transmitted to the torsion bar 121, so that the sleeve 122 reciprocates along the axial 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 the first mounting plate 2 and the second mounting plate 3. At the same time, due to the provision of the first recess 31, the knob 1212 is embedded in the first recess 31, and the knob 1212 will not protrude from 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 appearance of the household machine.

[0060] It should be noted that the shape of the first recess 31 can be circular, square, trapezoidal, etc. The overall visual effect of the household machine can be changed by changing the shape of the first recess 31, and the present application does not make specific limitations.

[0061] Further, as shown in Figure 3 and Figure 8 The side of the second mounting plate 3 away from the connecting seat 11 is provided with an annular rib 32, and the knob 1212 is provided with a second recess 1213, and the rib 32 is rotationally connected with the second recess 1213. By providing the annular rib 32, the rib 32 is rotationally connected with the second recess 1213. When the staff rotates the knob 1212, the rib 32 limits the rotation direction of the knob 1212, which can improve the operation feeling of the staff and improve the stability of the rotation of the torsion bar 121, avoiding the shaking of the torsion bar 121 in the horizontal direction, so that the sleeve 122 can reciprocate along the axial direction of the torsion bar 121, thereby improving the positioning accuracy of the connecting seat 11 and the first mounting plate 2.

[0062] In one embodiment, as shown in Figure 7As shown, the torsion assembly 12 comprises a spring 13 sleeved on the peripheral side of the sleeve 122, the first end of the spring 13 is connected with the second mounting plate 3, and the second end of the spring 13 is connected with the transmission end 112 of the connecting seat 11. It should be noted that the spring 13 is always in a compressed state. When it is needed to disassemble the first mounting plate 2 and the second mounting plate 3, the torsion rod 121 is rotated, under the transmission of the sleeve 122 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, the spring 13 is compressed more severely, at this time, the elastic force of the spring 13 needs to be overcome, 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 principle of lever, until the second state is reached, thereby completing the disassembly of the first mounting plate 2 and the second mounting plate 3. When it is needed to assemble the first mounting plate 2 and the second mounting plate 3, the torsion rod 121 is rotated, under the transmission 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 principle of lever, until the second state is reached, in the process, since the spring 13 is always in a compressed state, the elastic force of the spring 13 can be used to exert a reverse force on 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 right-handed threads, the staff rotates the torsion rod 121 clockwise, the sleeve 122 can move close to the second mounting plate 3 along the axial direction of the torsion rod 121, 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, the connecting end 111 of the connecting seat 11 can move away from the first mounting plate 2, the spring 13 is gradually compressed more severely, until the second state is reached, the connecting seat 11 and the first mounting plate 2 are separated from each other. The staff rotates the torsion rod 121 counterclockwise, the sleeve 122 can move away from the second mounting plate 3 along the axial direction of the torsion rod 121, 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, the connecting end 111 of the connecting seat 11 can move close to the first mounting plate 2, until the first state is reached, the connecting seat 11 and the first mounting plate 2 are connected with each other. In the above process, for the spring, the effect of tightening clockwise and loosening counterclockwise can be achieved. Conversely, the first internal thread 1222 and the first external thread are left-handed threads, for the spring, the effect of loosening clockwise and tightening counterclockwise can be achieved.

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

[0065] The detachable connection between the aforementioned connecting seat 11 and the first mounting plate 2 can be achieved in various ways, for example, the first mounting plate 2 is provided with a clamping groove, and the connecting seat 11 is provided with a buckle for clamping connection with the clamping groove; or the first mounting plate 2 is provided with a pin hole, and the connecting seat 11 is provided with a pin shaft for clamping connection with the pin hole; of course, other detachable connection structures can also be used.

[0066] In one embodiment, the connecting end 111 of the connecting seat 11 is provided with a first clamping pin, and the first mounting plate 2 is provided with a first pin hole, and the first clamping pin is clamped and connected with the first pin hole. Specifically, the first mounting plate 2 is provided with a first pin hole on the side facing the connecting seat 11, and the clamping connection between the first clamping pin and the first pin hole can achieve the fastening installation between the first mounting plate 2 and the second mounting plate 3. When it is needed to connect the first mounting plate 2 and the second mounting plate 3, the torsion rod 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 close to the first mounting plate 2 until reaching the first state, the first clamping pin is clamped and connected with the first pin hole, thereby achieving the fixed installation between the first mounting plate 2 and the second mounting plate 3. When it is needed to detach the first mounting plate 2 and the second mounting plate 3, the torsion rod 121 is reversely 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 reaching the second state, the first clamping pin is separated from the first pin hole, thereby achieving the detachment between the first mounting plate 2 and the second mounting plate 3, and the worker 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] Further, the end of the first clamping pin away from the connecting seat 11 is provided with a sharp end, which is conducive to the positioning between the first clamping pin and the first pin hole. As the end of the connecting seat 11 away from the sleeve 122 continues to move close to the first mounting plate 2, the first clamping pin gradually clamps into the first pin hole, and when the first clamping pin is clamped tightly with 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 clamping pin and the connecting seat 11 can be fixed by welding connection, or can be fixed by screw connection, and the present application does not make specific limitation thereon.

[0069] In one embodiment, the first clamps are provided in plurality, the plurality of first clamps are arranged at intervals, the first pin holes are provided in plurality, and the plurality of first pin holes are connected one by one with the first clamps. When the torsion bar 121 is rotated, as the connecting seat 11 continues to move close to the first mounting plate 2 from the end of the sleeve 122, the plurality of first clamps can be clamped into the corresponding first pin holes respectively, and when the plurality of first clamps are clamped between the corresponding first pin holes, the fastening and installation of the first mounting plate 2 and the second mounting plate 3 are realized, and the connection reliability of the first mounting plate 2 and the second mounting plate 3 is improved.

[0070] In a preferred embodiment, the first clamps are provided in three, since three points determine a plane, the flatness of the connection of the connecting seat 11 and the first mounting plate 2 can be further improved, and local buckling between the connecting seat 11 and the first mounting plate 2 due to uneven stress can be avoided.

[0071] It should be emphasized that the first mounting plate 2 and the second mounting plate 3 can be sheet metal parts or hard plastic parts. If sheet metal parts are used, since the structural strength of the sheet metal parts is large, in general, a relatively thin sheet metal part can be used to achieve good support strength.

[0072] In one embodiment, as shown in Figure 6 The second mounting plate 3 is provided with a first support 33, and the middle part of the connecting seat 11 is provided with a hinge 113, the hinge 113 includes intersecting first and second surfaces, 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 support 33. Specifically, the first mounting plate 2 and the second mounting plate 3 are both sheet metal parts, the end of the second mounting plate 3 close to the first mounting plate 2 is bent towards the connecting seat 11 to form a bent part, the first support 33 is also a sheet metal part, the first support 33 is welded to the bent part, the first surface of the hinge 113 is connected to the side of the connecting seat 11 facing the second mounting plate 3 through a screw, and the second surface of the hinge 113 is connected to the first support 33 through a screw. In this way, the structural strength can be ensured while avoiding exposure of the screws, thereby improving the overall aesthetics.

[0073] When different sheet metal parts are used to form a box, in order to avoid the exposure of the clamps by opening the pin holes on the first mounting plate 2, a support with an opening can be provided on the first mounting plate 2 to improve the overall aesthetics, and the specific design is described as follows.

[0074] In one embodiment, as shown in Figure 6As shown, the first mounting plate 2 is provided with a second support 21 on the side facing the connecting seat 11, the connecting end 111 of the connecting seat 11 is provided with a second clamping nail 114, the second support 21 is provided with a second pin hole 211, and the second clamping nail 114 is in clamping connection with the second pin hole 211. Specifically, the first mounting plate 2 is in welding connection with the second support 21, and in this way, the structural strength can be ensured while avoiding the exposure of the clamping nail, thereby improving the overall aesthetic appearance. It can be understood that when the first mounting plate 2 and the second mounting plate 3 need to be installed, the worker can stand on the outside of the first mounting plate 2 or the second mounting plate 3, apply an external force to rotate the torsion rod 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 reaching the first state, the first clamping nail is in clamping connection 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 rod 121 is reversely 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 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. During the disassembly and assembly process, the worker 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 installation and disassembly and maintenance.

[0075] In one embodiment, the second mounting plate 3 is provided with a plug cover (not shown in the figure), which covers the first recess 31, and after installation, the plug cover can avoid the exposure of the knob 1212, so that the side of the second mounting plate 3 away from the connecting seat 11 can hide the knob 1212, thereby improving the overall aesthetic appearance. If disassembly is needed, first remove the plug cover, then rotate the torsion rod 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 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.

[0076] The embodiment of the present application also provides a household machine, which comprises 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 installed in a vertical direction one below the other or in a horizontal direction one beside the other. Figure 3As shown, the application scenario in which the connecting device 1 is used to install the first mounting plate 2 and the second mounting plate 3 stacked vertically is shown. The first mounting plate 2 is arranged to form a first box 4, and the second mounting plate 3 is arranged to form a second box 5. The first box 4 and the second box 5 are stacked vertically. The side of the first mounting plate 2 or the second mounting plate 3 away from the interior space of the second box 5 is referred to as the outer side, and the side of the first mounting plate 2 or the second mounting plate 3 facing the interior space of the second box 5 is referred to as the inner side.

[0078] It can be understood that when the first mounting plate 2 and the second mounting plate 3 need to be installed, the worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, apply an external force to rotate the torsion rod 121, 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 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 the 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 worker can stand on the outer side of the first mounting plate 2 or the second mounting plate 3, rotate the torsion rod 121 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 the second state is reached, and the connecting seat 11 and the first mounting plate 2 are separated from each other, thereby achieving the disassembly between the first mounting plate 2 and the second mounting plate 3. That is, the worker does not need to enter the interior space of the box to achieve the disassembly or installation of the first mounting plate 2 and the second mounting plate 3. The fan section and the evaporator section and other components already installed in the interior space of the box do not affect the installation and disassembly of the worker, thereby reducing the operation difficulty of the worker and greatly improving the convenience of the worker in disassembly and maintenance.

[0079] It should be understood that the terms used herein are for the purpose of describing specific example embodiments only and are not intended to be limiting. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has" are to be construed as containing, comprising, including or having, as set forth herein, and therefore should be understood to be appropriate in the context with the statement that the features, steps, operations, elements, and / or components so described are included in the application, but not limiting or excluding the possession of additional features, steps, operations, elements, components, and / or groups thereof. The method steps, processes, and operations described herein are not to be construed as necessarily requiring their performance in the particular order in which they are described, unless otherwise explicitly indicated. It is also to be understood that additional or alternative steps can be employed.

[0080] Although the terms first, second, third, etc. can be used herein to describe various 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 be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example implementations.

[0081] The foregoing is considered as illustrative only of the principles of the application. Numerous modifications and changes can readily occur to those skilled in the art, which modifications and changes are intended to be within the scope of the application. Accordingly, the scope of the application is to be interpreted only as is fairly required by the patent laws.

Claims

1. A household machine, characterized in that comprising: a fan section sheet metal box comprising a first mounting plate; an evaporator section sheet metal box comprising a second mounting plate; a connecting device for connecting the first mounting plate and the second mounting plate; the connecting device comprising: a connecting seat rotatably arranged on the second mounting plate, the connecting seat being detachably connected with the first mounting plate; a torsion assembly comprising a torsion rod and a sleeve, the torsion rod being rotatably arranged on the second mounting plate, the sleeve being movably sleeved on the circumferential side of the torsion rod, the sleeve being in transmission connection with the connecting seat; the sleeve and the connecting seat being arranged on the same side of the second mounting plate, a first end of the torsion rod penetrating through the second mounting plate and being in sliding connection with the sleeve, a second end of the torsion rod being exposed to the side of the second mounting plate away from the connecting seat; an end of the torsion rod close to the connecting seat being provided with a connecting block, the sleeve being sleeved on the circumferential side of the connecting block, the connecting block being in threaded connection with the sleeve so as to make the sleeve reciprocate along the axial direction of the torsion rod; wherein, in the case that the torsion rod 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 of being connected with the first mounting plate and a second state of being separated from the first mounting plate.

2. The room unit according to claim 1, characterized by the connecting seat having oppositely arranged connecting end and transmission end, the middle part of the connecting seat being rotatably arranged on the second mounting plate, the transmission end of the connecting seat being in transmission connection with one 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 first state.

3. The household machine according to claim 2, characterized in that: one end of the sleeve away from the second mounting plate is provided with a hinged seat, the transmission end of the connecting seat is hingedly connected with the hinged seat.

4. The room unit according to claim 3, wherein the inner wall of the sleeve is provided with a first internal thread, the connecting block is provided with a first external thread matched with 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 home machine according to claim 1, wherein, the side of the second mounting plate away from the connecting seat is provided with a first groove, the second end of the torsion rod is provided with a knob, and the knob is rotatably arranged on the first groove.

6. The room unit according to claim 5, wherein the side of the second mounting plate away from the connecting seat is provided with a convex rib, the knob is provided with a second groove, and the convex rib is in rotational connection with the second groove.

7. The room unit according to claim 5, wherein the second mounting plate is provided with a plug, and the plug covers the first groove.

8. The home machine according to claim 2, wherein, the torsion assembly comprises a spring, the spring is sleeved on the circumferential side of the sleeve, a first end of the spring is connected with the back of the second mounting plate, and a second end of the spring is connected with the transmission end of the connecting seat.

9. The home machine according to claim 2, wherein, The connecting end of the connecting seat is provided with a first clamping pin, and the first mounting plate is provided with a first pin hole.

10. The room unit according to claim 9, wherein The first clamping pin is provided in plurality, and the first pin hole is provided in plurality and connected with the first clamping pin one by one.

11. The home machine according to claim 1, wherein, The second mounting plate is provided with a first support, the middle part of the connecting seat is provided with a hinge, the hinge comprises intersecting first and second surfaces, the first surface of the hinge is connected with the side of the connecting seat facing the second mounting plate, and the second surface of the hinge is connected with the first support.

12. The home machine according to claim 2, wherein, The first mounting plate is provided with a second support on the side facing the connecting seat, the connecting end of the connecting seat is provided with a second clamping pin, the second support is provided with a second pin hole, and the second clamping pin is connected with the second pin hole in clamping mode.

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