Flexible coupling and indoor unit

Abstract

The utility model provides a flexible coupling and an indoor unit. The flexible coupling comprises a first shaft sleeve; a second bushing; a flexible connecting piece; and the rigid connecting piece is movably arranged on the first shaft sleeve. According to the flexible coupling and the indoor unit, the first shaft sleeve and the second shaft sleeve are rigidly connected through the rigid connecting piece, the problem that the flexible coupling deforms in the transportation process is solved, and therefore the problems of bearing abrasion and noise caused by deformation of the flexible coupling in the prior art are solved; the structural reliability of the indoor unit in the transportation process is effectively improved, meanwhile, the rigid connecting piece can be disengaged from the second shaft sleeve, so that the flexible coupling can achieve the purpose of flexible connection when the indoor unit works normally, the working reliability of the indoor unit is guaranteed, and the use experience of a user is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission structures, in particular to a flexible coupling and an indoor unit. Background Art

[0002] Ducted air conditioners, also known as concealed air conditioners, house a motor and centrifugal fan, which are driven by the motor to deliver air to the room. Existing ducted air conditioners typically have three or more centrifugal fans installed, with their rotating shafts connected to the motor via flexible couplings to ensure reliable operation of all the centrifugal fans.

[0003] However, during the transportation of the duct dryer, the flexible coupling will undergo significant deformation due to road bumps and other reasons. This deformation will not automatically reset after the end of the transportation process. When used on this basis, the connection between the motor and the duct dryer will be unreliable, especially the bearing position will be subjected to greater force, which will cause bearing wear and generate noise, seriously affecting the working reliability of the duct dryer and user comfort. Utility Model Content

[0004] In order to solve the technical problem in the prior art that the flexible coupling will deform and affect the working reliability of the duct unit and the user comfort, a flexible coupling and indoor unit are provided that utilize rigid connectors to enable the flexible connectors to be rigidly connected to avoid deformation and thereby improve reliability and comfort.

[0005] A flexible coupling, comprising:

[0006] First bushing;

[0007] a second shaft sleeve, wherein the second shaft sleeve is located on one side of the first shaft sleeve, and a first distance is formed between the second shaft sleeve and the first shaft sleeve;

[0008] a flexible connector, one end of which is connected to the first shaft sleeve, and the other end of which is connected to the second shaft sleeve;

[0009] A rigid connector is movably disposed on the first shaft sleeve, and has a first state in which the rigid connector is rigidly connected to the second shaft sleeve and a second state in which a second distance is provided between the rigid connector and the second shaft sleeve.

[0010] The rigid connector is movably disposed in the first sleeve, and when the rigid connector is in a first state, the rigid connector can be rigidly connected to the second sleeve through the interior of the flexible connector.

[0011] When the rigid connector is in the first state, the end of the rigid connector extends into the second sleeve, and the outer wall of the rigid connector abuts against the inner wall of the second sleeve.

[0012] The first shaft sleeve is provided with a first guide structure, the rigid connector is provided with a second guide structure, and the first guide structure is in guiding cooperation with the second guide structure.

[0013] The first guide structure includes a slide groove, the second guide structure includes a slider, and the slider is movably arranged in the slide groove; and / or the second guide structure includes a slide groove, the first guide structure includes a slider, and the slider is movably arranged in the slide groove.

[0014] A first locking structure is provided on the first sleeve, and a second locking structure and a third locking structure are provided on the rigid connector in a direction away from the second sleeve. When the rigid connector is in the first state, the first locking structure is locked and matched with the second locking structure; when the rigid connector is in the second state, the first locking structure is locked and matched with the third locking structure.

[0015] The flexible coupling also includes a locking member, which is locked and matched with the first locking structure and the second locking structure at the same time when the rigid connector is in the first state; and is locked and matched with the first locking structure and the third locking structure at the same time when the rigid connector is in the second state.

[0016] The first shaft sleeve is mounted on the first rotating shaft, and the locking member is locked with the first rotating shaft.

[0017] A first mounting hole is provided on the first sleeve, and the first mounting hole constitutes the first locking structure. A second mounting hole and a third mounting hole are provided on the rigid connector, and the second mounting hole constitutes the second locking structure, and the third mounting hole constitutes the third locking structure. A through hole is provided on the first rotating shaft, and when the rigid connector is in the first state, the locking member passes through the first mounting hole, the second mounting hole and the through hole in sequence; when the rigid connector is in the second state, the locking member passes through the first mounting hole, the third mounting hole and the through hole in sequence.

[0018] An indoor unit comprises the flexible coupling mentioned above.

[0019] The flexible coupling and indoor unit provided by the utility model utilize a rigid connecting piece to rigidly connect the first shaft sleeve and the second shaft sleeve, thereby avoiding the problem of deformation of the flexible coupling during transportation, thereby avoiding the problems of bearing wear and noise caused by deformation of the flexible coupling in the prior art, effectively improving the structural reliability of the indoor unit during transportation, and at the same time, the rigid connecting piece can also be disengaged from the second shaft sleeve, so that the flexible coupling can serve the purpose of flexible connection when the indoor unit is working normally, thereby ensuring the working reliability of the indoor unit and improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic structural diagram of a flexible coupling provided in an embodiment of the present utility model;

[0021] Figure 2 Another structural schematic diagram of the flexible coupling provided by an embodiment of the utility model;

[0022] Figure 3 A schematic structural diagram of a first shaft sleeve, a rigid connector, and a first rotating shaft provided in an embodiment of the present utility model;

[0023] Figure 4 A schematic structural diagram of a rigid connector and a first rotating shaft provided in an embodiment of the present utility model;

[0024] Figure 5 A schematic structural diagram of an indoor unit provided in an embodiment of the present utility model;

[0025] In the picture:

[0026] 1. First bushing; 2. Second bushing; 11. First spacing; 3. Flexible connector; 4. Rigid connector; 51. Slide; 6. Locking member; 71. First mounting hole; 72. Second mounting hole; 73. Third mounting hole; 8. First rotating shaft. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0028] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," and the like in the specification and claims of the present invention and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate for the embodiments of the present invention described herein. In addition, the terms "including" and "having," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0030] It should be noted that in the description of this utility model, terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are based on the directions or positional relationships shown in the accompanying drawings. These terms are used solely for ease of description and are not intended to indicate or imply that the device or component described must have a specific orientation, be constructed, or operate in a specific position. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] Furthermore, it should be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "installed," "set," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; they may refer to direct connections, indirect connections through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0032] During the transportation of the duct dryer, the flexible coupling will undergo significant deformation due to road bumps and other reasons. This deformation will not automatically reset after the end of the transportation process. When used on this basis, the connection between the motor and the duct dryer will be unreliable, especially the bearing position will be subjected to greater force, which will cause bearing wear and generate noise, seriously affecting the working reliability of the duct dryer and user comfort.

[0033] To this end, this application provides a Figures 1 to 5 The flexible coupling shown in the figure comprises: a first sleeve 1; a second sleeve 2, the second sleeve 2 being located on one side of the first sleeve 1, and a first spacing 11 being formed between the second sleeve 22 and the first sleeve 1; a flexible connector 3, one end of the flexible connector 3 being connected to the first sleeve 1, and the other end being connected to the second sleeve 2; a rigid connector 4, the rigid connector 4 being movably disposed on the first sleeve 1, and the rigid connector 4 having a first state of rigid connection with the second sleeve 2 (such as Figure 2 ) and a second state with a second spacing with the second sleeve 2 (as shown Figure 1 As shown). The rigid connector 4 is used to rigidly connect the first shaft sleeve 1 and the second shaft sleeve 2, thereby avoiding the problem of deformation of the flexible coupling during transportation, thereby avoiding the problems of bearing wear and noise caused by deformation of the flexible coupling in the prior art, effectively improving the structural reliability of the indoor unit during transportation. At the same time, the rigid connector 4 can also be disengaged from the second shaft sleeve 2, so that the flexible coupling can achieve the purpose of flexible connection when the indoor unit is working normally, thereby ensuring the working reliability of the indoor unit and improving the user experience.

[0034] During transportation of a device equipped with the flexible coupling of the present application, the rigid connector 4 is switched to the first state. At this time, the first sleeve 1 and the second sleeve 2 of the flexible coupling are rigidly connected via the rigid connector 4, and the flexible coupling will not deform under the vibration during transportation. After transportation, the rigid connector 4 is switched to the second state. The first sleeve 1 and the second sleeve 2 of the flexible coupling are flexibly connected only via the flexible connector 3, thereby ensuring the connection reliability and transmission reliability of the structure connected by the first sleeve 1 and the structure connected by the second sleeve 2.

[0035] As an embodiment, the first sleeve 1 is a hollow tubular structure. When in use, the first rotating shaft is inserted into the first sleeve 1, and the flexible connector 3 is connected to the outer wall of the first sleeve 1. In order to avoid structural interference of the rigid connector 4 on the flexible connector 3, and at the same time ensure that the rigid connection of the rigid connector 4 to the rotating shaft connected to the first sleeve 1 and the second sleeve 2 is reliable, the rigid connector 4 is movably arranged in the first sleeve 1, and when the rigid connector 4 is in the first state, the rigid connector 4 can be rigidly connected to the second sleeve 2 from the inside of the flexible connector 3, and the movement of the rigid connector 4 is all inside the flexible connector 3, thereby ensuring the reliability of the rigid connection.

[0036] Specifically, when the rigid connector 4 is in the first state, the end of the rigid connector 4 extends into the second shaft sleeve 2, and the outer wall of the rigid connector 4 abuts against the inner wall of the second shaft sleeve 2, that is, the rigid connector 4 is a hollow tube structure. When the rigid connector 4 is rigidly connected, one end of the rigid connector 4 is restricted between the first shaft sleeve 1 and the first rotating shaft installed on the first shaft sleeve 1, so as to realize the locking between the rigid connector 4 and the first shaft sleeve 1, and the other end of the rigid connector 4 is restricted between the second shaft sleeve 2 and the second rotating shaft installed on the second shaft sleeve 2, so as to realize the locking between the rigid connector 4 and the second shaft sleeve 2. At this time, the first shaft sleeve 1, the first rotating shaft, the second shaft sleeve 2, the second rotating shaft and the rigid connector 4 can only move along the axial direction, so that relative rotation will not occur.

[0037] A first guide structure is provided on the first sleeve 1, and a second guide structure is provided on the rigid connector 4. The first guide structure and the second guide structure cooperate with each other in a guiding manner. By utilizing the guiding cooperation between the first guide structure and the second guide structure, the rigid connector 4 can only move in a direction close to or away from the second sleeve 2, thereby ensuring that the rigid connector 4 switches reliably between the first state and the second state.

[0038] As an embodiment, the first guide structure includes a slide groove 51, and the second guide structure includes a slider, which is movably arranged in the slide groove 51. The slide groove 51 is used to restrict the slider so that the slider can only move along the length direction of the slide groove 51, thereby limiting the moving direction of the rigid connector 4.

[0039] As another embodiment, the second guide structure includes a slide groove 51, and the first guide structure includes a slider, which is movably arranged in the slide groove 51. The slide groove 51 is used to restrict the slider so that the slider can only move along the length direction of the slide groove 51, thereby limiting the moving direction of the rigid connector 4.

[0040] Since the rigid connector 4 can move along the axial direction, in order to ensure that the rigid connector 4 does not displace in the first state and the second state, a first locking structure is provided on the first sleeve 1, and in the direction away from the second sleeve 2, a second locking structure and a third locking structure are provided on the rigid connector 4. When the rigid connector 4 is in the first state, the first locking structure is locked and matched with the second locking structure. At this time, the first locking structure and the third locking structure are relatively disengaged. The connection between the first locking structure and the second locking structure can limit the rigid connector 4 from being displaced in the first state, thereby ensuring the rigid connection effect of the rigid connector 4; when the rigid connector 4 is in the second state, the first locking structure is locked and matched with the third locking structure. At this time, the first locking structure and the second locking structure are relatively disengaged. The connection between the first locking structure and the third locking structure can limit the rigid connector 4 from being displaced in the second state, thereby ensuring that the rigid connector 4 does not move axially and interfere with the second sleeve 2, thereby ensuring the flexible connection effect of the flexible coupling.

[0041] The flexible coupling further includes a locking member 6. When the rigid connector 4 is in the first state, the locking member 6 is simultaneously locked and engaged with the first locking structure and the second locking structure. When the rigid connector 4 is in the second state, the locking member 6 is simultaneously locked and engaged with the first locking structure and the third locking structure. The use of the locking member 6 reduces the difficulty of processing the rigid connector 4, the first shaft sleeve 1, and the second shaft sleeve 2. At the same time, the rigid connector 4 can be connected and disconnected with the first shaft sleeve 1 and the second shaft sleeve 2 by operating the locking member 6, making it convenient for the operator to switch the state of the rigid connector 4.

[0042] Furthermore, the first sleeve 1 is mounted on the first shaft 8, and the locking member 6 is locked with the first shaft 8. Locking the locking member 6 with the first shaft 8 can not only improve the connection reliability between the first sleeve 1 and the first shaft 8, but also enhance the fixing effect of the rigid connector 4, thereby improving the reliability of the flexible coupling.

[0043] Specifically, such as Figure 1As shown, a first mounting hole 71 is provided on the first sleeve 1, and the first mounting hole 71 constitutes the first locking structure. A second mounting hole 72 and a third mounting hole 73 are provided on the rigid connector 4, and the second mounting hole 72 constitutes the second locking structure, and the third mounting hole 73 constitutes the third locking structure. A through hole is provided on the first rotating shaft 8. When the rigid connector 4 is in the first state, the locking member 6 passes through the first mounting hole 71, the second mounting hole 72 and the through hole in sequence to complete the fixed connection of the rigid connector 4, the first sleeve 1 and the first rotating shaft 8; when the rigid connector 4 is in the second state, the locking member 6 passes through the first mounting hole 71, the third mounting hole 73 and the through hole in sequence to complete the fixed connection of the rigid connector 4, the first sleeve 1 and the first rotating shaft 8.

[0044] Preferably, the locking member 6 is a bolt.

[0045] A fourth mounting hole is provided on the flexible connector 3 . When the rigid connector 4 is in the first state or the second state, the locking member 6 passes through the fourth mounting hole to fix the rigid connector 4 .

[0046] A fifth mounting hole is provided on the second sleeve 2, and a through hole is provided on the second rotating shaft provided on the second sleeve 2. The second sleeve 2 is fixedly connected by bolts passing through the fourth mounting hole and the through hole on the second rotating shaft. A sixth mounting hole is provided on the flexible connector 3, and the bolts pass through the sixth mounting hole, the fourth mounting hole and the through hole on the second rotating shaft in sequence to complete the fixation.

[0047] An indoor unit comprises the flexible coupling mentioned above.

[0048] The above-described embodiments merely represent several implementation methods of the present invention. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that a person skilled in the art would be able to make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be determined by the appended claims.

Claims

1. A flexible coupling, characterized in that: include: a first sleeve (1); a second shaft sleeve (2), the second shaft sleeve (2) being located on one side of the first shaft sleeve (1), and a first distance (11) being present between the second shaft sleeve (2) and the first shaft sleeve (1); a flexible connector (3), one end of the flexible connector (3) being connected to the first shaft sleeve (1), and the other end being connected to the second shaft sleeve (2); A rigid connector (4) is movably arranged on the first shaft sleeve (1), and the rigid connector (4) has a first state in which it is rigidly connected to the second shaft sleeve (2) and a second state in which it has a second distance from the second shaft sleeve (2).

2. The flexible coupling according to claim 1, characterized in that: The rigid connector (4) is movably arranged in the first sleeve (1), and when the rigid connector (4) is in a first state, the rigid connector (4) can be rigidly connected to the second sleeve (2) through the interior of the flexible connector (3).

3. The flexible coupling according to claim 2, characterized in that: When the rigid connector (4) is in the first state, the end of the rigid connector (4) extends into the second shaft sleeve (2), and the outer wall of the rigid connector (4) abuts against the inner wall of the second shaft sleeve (2).

4. The flexible coupling according to claim 1, characterized in that: The first shaft sleeve (1) is provided with a first guide structure, and the rigid connecting member (4) is provided with a second guide structure, and the first guide structure and the second guide structure are in guiding cooperation.

5. The flexible coupling according to claim 4, characterized in that: The first guide structure includes a slide groove (51), the second guide structure includes a slider, and the slider is movably arranged in the slide groove (51); and / or the second guide structure includes a slide groove (51), the first guide structure includes a slider, and the slider is movably arranged in the slide groove (51).

6. The flexible coupling according to claim 1, characterized in that: The first shaft sleeve (1) is provided with a first locking structure, and in a direction away from the second shaft sleeve (2), the rigid connector (4) is provided with a second locking structure and a third locking structure, and when the rigid connector (4) is in the first state, the first locking structure is locked and matched with the second locking structure; When the rigid connection member (4) is in the second state, the first locking structure is locked and matched with the third locking structure.

7. The flexible coupling according to claim 6, characterized in that: The flexible coupling further comprises a locking member (6), and when the rigid connection member (4) is in the first state, the locking member (6) is locked and matched with the first locking structure and the second locking structure at the same time; When the rigid connection member (4) is in the second state, the locking member (6) is simultaneously locked with the first locking structure and the third locking structure.

8. The flexible coupling according to claim 7, characterized in that: The first shaft sleeve (1) is mounted on the first rotating shaft (8), and the locking member (6) is locked and matched with the first rotating shaft (8).

9. The flexible coupling according to claim 8, characterized in that: The first sleeve (1) is provided with a first mounting hole (71), and the first mounting hole (71) constitutes the first locking structure. The rigid connector (4) is provided with a second mounting hole (72) and a third mounting hole (73), and the second mounting hole (72) constitutes the second locking structure, and the third mounting hole (73) constitutes the third locking structure. The first rotating shaft (8) is provided with a through hole. When the rigid connector (4) is in the first state, the locking member (6) sequentially passes through the first mounting hole (71), the second mounting hole (72) and the through hole; when the rigid connector (4) is in the second state, the locking member (6) sequentially passes through the first mounting hole (71), the third mounting hole (73) and the through hole.

10. An indoor unit, characterized in that: The flexible coupling comprises the flexible coupling according to any one of claims 1 to 9.

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