Ceiling electric appliance

Abstract

The utility model provides a ceiling electric appliance which comprises a shell and an air duct part, the air duct part is formed in the shell, a fan part is arranged in the air duct part, the fan part is movably connected with the air duct part, and the fan part is provided with an avoiding position which moves towards one side of the air duct part and is contained in the air duct part. And the fan part is provided with a working position which moves towards the other side of the air duct part to the preset position of the air duct part. According to the connection mode of the fan part and the air duct part, the position of the fan part can be adjusted according to installation requirements, and therefore the technical problem that due to the limited air duct space, the part installation difficulty is large is solved.

Description

Technical Field

[0001] This utility model relates to the technical field of ceiling electrical appliances, and more specifically, to a ceiling electrical appliance. Background Technology

[0002] Common ceiling appliances include air conditioners, bathroom heaters, fresh air systems, kitchen air conditioners, and exhaust fans. Among them, bathroom heaters, as commonly used indoor heating equipment, consist of a housing, a fan, and other components. Their main function is to raise the temperature of the bathroom by heating the air.

[0003] In existing technologies, the fan is installed inside the air duct. After the fan is fixed to the air duct, the limited space inside the air duct increases the difficulty of installing other components inside the air duct.

[0004] There is currently no effective solution to the above problems. Utility Model Content

[0005] The main purpose of this utility model is to provide a ceiling electrical appliance to solve the technical problem of the difficulty in installing components in the air duct in the prior art.

[0006] To achieve the above objectives, according to one aspect of the present invention, a ceiling electrical appliance is provided, comprising: a duct section; a fan section disposed within the duct section and movably connected to the duct section, the fan section having a clearance position that moves toward one side of the duct section, and a working position that moves toward the other side of the duct section to a preset position of the duct section.

[0007] Furthermore, the ceiling electrical appliance also includes: a housing, with a portion of the air duct formed inside the housing and another portion of the air duct protruding from the outside of the housing.

[0008] Furthermore, the air duct section includes: an air duct side plate, the air duct side plate including a volute side plate, the volute side plate being disposed within the housing, the volute side plate having an opening structure; a splicing volute, the splicing volute being detachably connected to the housing, the splicing volute having an assembly position and a disassembly position; and an air duct bottom plate, the fan section being movably connected to the air duct bottom plate, the fan section having a clearance position entirely located within the housing, and a working position partially located within the splicing volute.

[0009] Furthermore, the fan unit is rotatably connected to the duct floor plate, and the profile of the fan unit's movement trajectory relative to the duct floor plate is an arc.

[0010] Furthermore, the bottom plate of the air duct is provided with a rotating hole, and the fan part is provided with a first connecting piece, which is rotatably connected to the rotating hole.

[0011] Furthermore, the bottom plate of the air duct is also provided with an arc-shaped track, the fan unit is located between the rotating hole and the arc-shaped track, and the fan unit is also provided with a second connecting piece, which is slidably connected to the arc-shaped track.

[0012] Furthermore, the arc-shaped track is provided with a first limiting part and a second limiting part, which are used to abut against the second connecting member to restrict the movement of the second connecting member relative to the arc-shaped track.

[0013] Furthermore, the fan unit is slidably connected to the duct floor plate, and the profile of the fan unit's movement trajectory relative to the duct floor plate is a straight line.

[0014] Furthermore, the bottom plate of the air duct is provided with a guide hole, the extension direction of which is parallel to the movement trajectory of the fan unit, and the fan unit is provided with a third connector, which is slidably connected to the guide hole.

[0015] Furthermore, the guide hole is provided with a third limiting part and a fourth limiting part, which are used to abut against the third connecting member to restrict the movement of the third connecting member relative to the guide hole.

[0016] By applying the technical solution of this utility model, the fan unit and the duct unit are movably connected, meaning the fan unit is movable relative to the duct unit. During installation, the fan unit is adjusted to a clearance position to allow installation space for the components to be installed within the duct unit. After the components are installed, the fan unit is moved to its working position. This connection method between the fan unit and the duct unit allows the position of the fan unit to be adjusted according to installation requirements, thereby solving the technical problem of difficult component installation due to limited duct space. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0018] Figure 1 A schematic diagram of the structure of a first embodiment of the ceiling electrical appliance according to the present invention is shown;

[0019] Figure 2 A schematic diagram of the structure of a second embodiment of the ceiling electrical appliance according to the present invention is shown;

[0020] Figure 3 A schematic diagram of the structure of a third embodiment of the ceiling electrical appliance according to the present invention is shown;

[0021] Figure 4 A schematic diagram of the structure of a fourth embodiment of the ceiling electrical appliance according to the present invention is shown;

[0022] Figure 5 A structural schematic diagram of a fifth embodiment of the ceiling electrical appliance according to the present invention is shown;

[0023] Figure 6 A schematic diagram of the sixth embodiment of the ceiling electrical appliance according to the present invention is shown.

[0024] The above figures include the following reference numerals:

[0025] 1. Air duct department;

[0026] 11. Volute side panel; 12. Exhaust side panel; 13. Spliced ​​volute;

[0027] 111. Rotating hole; 112. Arc-shaped track; 1121. First limiting part; 1122. Second limiting part; 113. Guide hole; 1131. Third limiting part; 1132. Fourth limiting part;

[0028] 2. Air collection plate;

[0029] 3. Fan section;

[0030] 31. Fan blades; 32. Electric motor;

[0031] 4. First connecting component;

[0032] 5. Second connector;

[0033] 6. Third connector;

[0034] 7. Shell. Detailed Implementation

[0035] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0036] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0037] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0038] Exemplary embodiments according to this application will now be described in more detail with reference to the accompanying drawings. However, these exemplary embodiments may be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. It should be understood that these embodiments are provided so that the disclosure of this application is thorough and complete, and that the concept of these exemplary embodiments is fully conveyed to those skilled in the art. In the drawings, for clarity, the thickness of layers and regions may be exaggerated, and the same reference numerals are used to denote the same devices, and therefore their description will be omitted.

[0039] Combination Figures 1 to 6 As shown, according to a specific embodiment of this application, a ceiling electrical appliance is provided.

[0040] Specifically, the ceiling electrical appliance includes: a duct section 1 and a fan section 3. The fan section 3 is disposed inside the duct section 1 and is movably connected to the duct section 1. The fan section 3 has a clearance position that moves toward one side of the duct section 1, and a working position that moves toward the other side of the duct section 1 to a preset position of the duct section 1.

[0041] By applying the technical solution of this utility model, the fan unit and the duct unit are movably connected, meaning the fan unit is movable relative to the duct unit. During installation, the fan unit is adjusted to a clearance position to allow installation space for the components to be installed within the duct unit. After the components are installed, the fan unit is moved to its working position. This connection method between the fan unit and the duct unit allows the position of the fan unit to be adjusted according to installation requirements, thereby solving the technical problem of difficult component installation due to limited duct space.

[0042] It is understandable that the fan unit 3 is always located inside the air duct unit 1, that is, the fan unit 3 moves inside the air duct unit 1 according to the installation requirements.

[0043] In one exemplary embodiment of this application, the air duct 1 can serve as the main housing of the ceiling electrical appliance, that is, the air duct 1 is directly connected to the mounting base.

[0044] In another exemplary embodiment of this application, the ceiling appliance includes a housing 7, with a portion of the air duct 1 formed within the housing 7. This housing serves as the main housing of the ceiling appliance and is connected to the mounting base. Specifically, the ceiling appliance includes a housing 7, with a portion of the air duct 1 formed within the housing 7 and another portion of the air duct 1 protruding from the housing 7. The portion of the air duct formed outside the housing increases the size of the air duct, providing sufficient installation space for components to be installed within the air duct.

[0045] Among them, such as Figure 1 As shown, the housing 7 has a rectangular structure, and the long side of the housing 7 has an opening, through which the air duct 1 protrudes outward.

[0046] Furthermore, the air duct section 1 includes: an air duct side plate, an air duct bottom plate, and a splicing volute 13. The air duct side plate includes a volute side plate 11, which is disposed within the housing 7 and has an opening structure. The splicing volute 13 is detachably connected to the housing 7 and has an assembly position and a disassembly position; the fan section 3 is movably connected to the air duct bottom plate and has a clearance position entirely within the housing 7 and a working position partially within the splicing volute 13.

[0047] Specifically, such as Figure 1 , Figure 2 As shown, when the splicing volute 13 is in the assembly position, the splicing volute 13 blocks at least part of the opening structure, and at least part of the splicing volute 13 protrudes from the housing 7. During the installation of ceiling electrical appliances, the movable fan unit 3 is moved so that it is completely housed within the housing 7. After the housing 7 is installed, the fan unit 3 is moved to the working position. When the fan unit 3 is in the working position, a portion of the fan unit 3 extends into the splicing volute 13, so that a portion of the fan unit 3 extends to the air duct 1 protruding from the housing 7. After the fan unit 3 is moved to the working position, the splicing volute 13 is then installed. By designing the duct section 1 as a spliced ​​structure, the position of the spliced ​​volute can be controlled according to the installation environment during the installation of ceiling electrical appliances. This ensures that even if the size of the duct section is increased, the installation space will not be limited. Furthermore, based on the spliced ​​structure, the fan section 3 is movably arranged relative to the duct section 1, allowing the position of the fan section to be adjusted according to the installation environment. This also ensures that even if the size of the fan section 3 is increased, the installation space will not be limited. Those skilled in the art will understand that the duct side plate, duct bottom plate, spliced ​​volute, and air collecting plate together form the duct, wherein the duct bottom plate and the air collecting plate 2 are arranged vertically opposite each other.

[0048] Specifically, such as Figure 1 , Figure 2 as well as Figure 6 As shown, the air duct section 1 includes an air duct side plate, an air duct bottom plate, a spliced ​​volute 13, and an air collecting plate 2. The air duct bottom plate, air duct side plate, spliced ​​volute 13, and air collecting plate 2 together form an air duct. The air inlet and air outlet of the air duct are both located on the air collecting plate 2, and the air inlet is connected to the inlet of the fan section. The air duct side plate includes a volute side plate 11 and an air outlet side plate 12. The volute side plate 11, the air duct bottom plate, the spliced ​​volute 13, and the air collecting plate 2 together form a volute air duct, and the air outlet side plate 12, the air duct bottom plate, and the air collecting plate 2 together form an air outlet air duct. That is, the air duct is divided into a volute air duct and an air outlet air duct.

[0049] like Figure 1 , Figure 2 As shown, the volute side plate 11 is located inside the housing 7, and at least a portion of the spliced ​​volute 13 is located outside the housing 7. The spliced ​​volute 13 connects to the housing 7 to achieve docking with the volute side plate 11, meaning the air duct section is a spliced ​​structure. During installation, the position of the spliced ​​volute can be controlled according to the installation environment, thereby achieving the goal that even if the size of the air duct section is increased, it will not be limited by the installation space. That is, by increasing the size of the air duct section, the air volume of the ceiling electrical appliances can be increased. By setting the air duct section 1 as a spliced ​​structure, the problem of the installation of the air duct section 1 being limited by the installation environment is solved.

[0050] like Figure 1 As shown, with the increased size of the fan section 3, when the fan section 3 is in the working position, part of the fan section 3 is located inside the splicing volute 13, that is, part of the fan section 3 is located outside the housing 7. During installation, the fan section 3 located outside the housing 7 may be limited by the installation space. Figure 2 As shown, the fan unit 3 is in a clearance position, completely located within the volute side plate 11, i.e., completely within the housing 7. During installation, the fan unit 3 is moved into the housing 7 to clear space, ensuring that its installation is not limited by installation space. After the housing 7 is moved to the preset installation position, the fan unit 3 is then moved to the corresponding working position. The fan unit 3 is movably positioned relative to the duct unit 1. During installation, the position of the fan unit is adjusted according to the installation environment, thereby achieving the goal that even if the size of the fan unit 3 is increased, it will not be limited by installation space. That is, by increasing the size of the fan unit 3, the air volume of the ceiling electrical appliances is increased. By adjusting the position of the fan unit 3 relative to the duct unit 1, the problem of the fan unit 3's installation being limited by the installation environment is solved.

[0051] It should be noted that the spliced ​​volute 13 can be connected to the shell 7 or to the volute side plate 11. The spliced ​​volute 13 only needs to be able to seal the opening structure of the volute side plate 11.

[0052] In another exemplary embodiment of this application, the fan unit 3 is rotatably connected to the duct base plate, and the profile of the movement trajectory of the fan unit 3 relative to the duct base plate is an arc. That is, when the fan unit 3 rotates relative to the duct base plate, the fan unit 3 is in contact with the duct base plate to prevent the fan unit 3 from detaching from the duct base plate.

[0053] Furthermore, the bottom plate of the air duct is provided with a rotating hole 111, and the fan part 3 is provided with a first connecting member 4, which is rotatably connected to the rotating hole 111. Under the drive of external force, the fan part 3 rotates around the rotating hole 111.

[0054] Specifically, such as Figure 4 , Figure 3 As shown, the fan unit 3 includes a fan blade 31 and a motor 32. The bottom plate of the duct has a first mounting hole, which is an arc-shaped hole. The profile of the first mounting hole is consistent with the profile of the moving trajectory of the fan unit 3. The base of the motor 32 is located outside the duct. The drive shaft of the motor 32 extends into the duct through the first mounting hole and connects to the fan blade 31. The motor 32 drives the fan blade 31 to rotate through the drive shaft, so as to draw indoor air into the duct. The bottom plate of the duct has a rotating hole 111, which is offset from the rotation center of the fan unit 3 to prevent the fan unit 3 from rotating on its own. The base of the motor 32 is connected to the rotating hole 111 through a first connecting member 4, which is a bolt. When adjusting the position of the fan unit 3, the nut that mates with the first connecting member 4 is loosened so that the fan unit 3 can rotate around the rotating hole 111. After the position adjustment is completed, the nut is tightened to fix the fan unit 3.

[0055] Furthermore, the bottom plate of the air duct is also provided with an arc-shaped track 112. The fan unit 3 is located between the rotating hole 111 and the arc-shaped track 112. The fan unit 3 is provided with a second connecting member 5, which is slidably connected to the arc-shaped track 112. When the fan unit 3 rotates around the rotating hole 111, the second connecting member 5 slides along the arc-shaped track 112. The arc-shaped track 112 serves as a limiting function, that is, the arc-shaped track 112 restricts the rotation angle of the fan unit 3 to avoid the fan unit 3 from colliding with the side wall of the air duct due to excessive rotation angle.

[0056] Specifically, such as Figure 4 As shown, the base of the motor 32 is connected to the arc-shaped track 112 via the second connector 5. The second connector 5 is a bolt. When adjusting the position of the fan part 3, the nut that cooperates with the second connector 5 is loosened so that the fan part 3 can rotate around the rotating hole 111. After the position adjustment is completed, the nut is tightened to fix the fan part 3.

[0057] Furthermore, the arc-shaped track 112 is provided with a first limiting part 1121 and a second limiting part 1122. The first limiting part 1121 and the second limiting part 1122 are used to abut against the second connecting member 5 to restrict the movement of the second connecting member 5 relative to the arc-shaped track 112.

[0058] Specifically, such as Figure 4 As shown, both the first limiting part 1121 and the second limiting part 1122 are protruding structures provided on the inner wall of the arc-shaped track 112. The second connecting member 5 is locked by abutting against the protruding structure. When the second connecting member 5 contacts the first limiting part 1121, the fan part 3 moves to the avoidance position. When the second connecting member 5 contacts the second limiting part 1122, the fan part 3 moves to the working position. That is, the setting of the first limiting part 1121 and the second limiting part 1122 is to indicate whether the fan part 3 has moved to the designated position.

[0059] In another exemplary embodiment of this application, the fan unit 3 is slidably connected to the duct floor plate, and the profile of the movement trajectory of the fan unit 3 relative to the duct floor plate is a straight line, that is, the fan unit 3 moves along a straight line.

[0060] Furthermore, the bottom plate of the air duct is provided with a guide hole 113, the extension direction of the guide hole 113 is parallel to the movement trajectory of the fan part 3, the fan part 3 is provided with a third connector 6, the third connector 6 is slidably connected to the guide hole 113, and the external force drives the fan part 3 to slide along the extension direction of the guide hole 113.

[0061] Specifically, such as Figure 3 , Figure 5 As shown, the fan unit 3 includes a fan blade 31 and a motor 32. The duct bottom plate has a second mounting hole, and the first mounting hole is an elongated hole. The base of the motor 32 is located outside the duct, and the drive shaft of the motor 32 extends into the duct through the second mounting hole and connects to the fan blade 31. The motor 32 drives the fan blade 31 to rotate via the drive shaft, drawing indoor air into the duct. There are two guide holes 113, located on either side of the first mounting hole. The base of the motor 32 is connected to the two guide holes 113 one-to-one via a third connecting member 6. The third connecting member 6 is a bolt. When adjusting the position of the fan unit 3, the nut that mates with the third connecting member 6 is loosened to allow the fan unit 3 to slide along the guide holes 113. After position adjustment, the nut is tightened to fix the fan unit 3. The guide holes 113 serve a guiding and limiting function, restricting the sliding range of the fan unit 3.

[0062] Furthermore, the guide hole 113 is provided with a third limiting part 1131 and a fourth limiting part 1132, which are used to abut against the third connecting member 6 to restrict the movement of the third connecting member 6 relative to the guide hole 113.

[0063] Specifically, such as Figure 5As shown, both the third limiting part 1131 and the fourth limiting part 1132 are protruding structures provided on the inner wall of the arc-shaped track 112. The third connecting member 6 is locked by abutting against the protruding structures. When the third connecting member 6 contacts the third limiting part 1131, the fan part 3 moves to the avoidance position. When the third connecting part 6 contacts the fourth limiting part 1132, the fan part 3 moves to the working position. That is, the setting of the third limiting part 1131 and the fourth limiting part 1132 is to indicate whether the fan part 3 has moved to the designated position.

[0064] As can be seen from the above description, the embodiments of this utility model achieve the following technical effects:

[0065] 1. The fan unit is movable relative to the duct unit. During installation, the fan unit can be adjusted to a clearance position according to installation requirements to solve the technical problem of difficult component installation due to limited duct space.

[0066] 2. The air duct section is a spliced ​​structure. During installation, the position of the spliced ​​volute can be controlled according to the installation environment, so that even if the size of the air duct section is increased, it will not be limited by the installation space. That is, the air volume of the ceiling electrical appliances can be increased by increasing the size of the air duct section. By setting the air duct section 1 as a spliced ​​structure, the problem of the installation of the air duct section 1 being limited by the installation environment is solved.

[0067] 3. The fan unit 3 is movably set relative to the air duct unit 1. During the installation process, the position of the fan unit is adjusted according to the installation environment, so that even if the size of the fan unit 3 is increased, it will not be limited by the installation space. That is, the air volume of the ceiling electrical appliances is increased by increasing the size of the fan unit 3, and the problem of the installation of the fan unit 3 being limited by the installation environment is solved by adjusting the position of the fan unit 3 relative to the air duct unit 1.

[0068] For ease of description, spatial relative terms such as "above," "on top of," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "on top of" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0069] In addition to the above, it should be noted that the terms "one embodiment," "another embodiment," and "embodiment" used in this specification refer to specific features, structures, or characteristics described in connection with that embodiment, which are included in at least one embodiment described in the general description of this application. The appearance of the same expression in multiple places in the specification does not necessarily refer to the same embodiment. Furthermore, when a specific feature, structure, or characteristic is described in connection with any embodiment, the intention is to suggest that implementing such a feature, structure, or characteristic in conjunction with other embodiments also falls within the scope of this utility model.

[0070] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0071] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A ceiling-mounted electrical appliance, characterized in that, include: Air duct section (1); A fan unit (3) is disposed within the air duct unit. The fan unit (3) is movably connected to the air duct unit (1). The fan unit (3) has a clearance position that moves toward one side of the air duct unit (1) and a working position that moves toward the other side of the air duct unit (1) to a preset position of the air duct unit (1).

2. The ceiling electrical appliance according to claim 1, characterized in that, The ceiling electrical appliances also include: The housing (7) has a portion of the air duct portion (1) formed inside the housing (7) and another portion of the air duct portion (1) protruding outside the housing (7).

3. The ceiling electrical appliance according to claim 2, characterized in that, The air duct section (1) includes: The air duct side plate includes a volute side plate (11), which is disposed inside the housing (7) and has an opening structure. A splicing volute (13) is detachably connected to the housing (7), and the splicing volute (13) has an assembly position and a disassembly position; The fan unit (3) is movably connected to the duct base plate. The fan unit (3) has the clearance position located entirely within the housing (7) and the working position located partially within the splicing volute (13).

4. The ceiling electrical appliance according to claim 3, characterized in that, The fan unit (3) is rotatably connected to the bottom plate of the air duct, and the profile of the movement trajectory of the fan unit (3) relative to the bottom plate of the air duct is an arc.

5. The ceiling electrical appliance according to claim 4, characterized in that, The bottom plate of the air duct is provided with a rotating hole (111), and the fan part (3) is provided with a first connecting member (4), which is rotatably connected to the rotating hole (111).

6. The ceiling electrical appliance according to claim 5, characterized in that, The bottom plate of the air duct is also provided with an arc-shaped track (112). The fan part (3) is located between the rotating hole (111) and the arc-shaped track (112). The fan part (3) is also provided with a second connecting member (5). The second connecting member (5) is slidably connected to the arc-shaped track (112).

7. The ceiling electrical appliance according to claim 6, characterized in that, The arc-shaped track (112) is provided with a first limiting part (1121) and a second limiting part (1122). The first limiting part (1121) and the second limiting part (1122) are used to abut against the second connecting member (5) to restrict the movement of the second connecting member (5) relative to the arc-shaped track (112).

8. The ceiling electrical appliance according to claim 3, characterized in that, The fan unit (3) is slidably connected to the bottom plate of the air duct, and the trajectory of the fan unit (3) relative to the bottom plate of the air duct is a straight line.

9. The ceiling electrical appliance according to claim 8, characterized in that, The bottom plate of the air duct is provided with a guide hole (113), the extension direction of the guide hole (113) is parallel to the movement trajectory of the fan part (3), the fan part (3) is provided with a third connector (6), and the third connector (6) is slidably connected to the guide hole (113).

10. The ceiling electrical appliance according to claim 9, characterized in that, The guide hole (113) is provided with a third limiting part (1131) and a fourth limiting part (1132). The third limiting part (1131) and the fourth limiting part (1132) are used to abut against the third connector (6) to restrict the movement of the third connector (6) relative to the guide hole (113).

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