A ceiling mounting device

Abstract

The utility model relates to a ceiling -mounted equipment, including mounting seat and equipment main part, the mounting seat includes the casing, elastic part and sliding assembly, the sliding assembly movably installs on the casing, be provided with locking block on the casing, one end of elastic part sets up on the sliding assembly to make the sliding assembly produce the tendency that moves to locking block, the equipment main part includes the body and locking piece, the locking piece includes lock bar and lock cap, the lock cap sets up one end of lock bar, the other end of lock bar sets up on the body, the ceiling -mounted equipment at least has first installation state, when the ceiling -mounted equipment is in first installation state, the lock bar is clamped between the locking block and the sliding assembly, and the lock cap supports on the locking block and the sliding assembly.

Description

Technical Field

[0001] This utility model relates to the field of wireless communication equipment, and in particular to a ceiling-mounted device. Background Technology

[0002] Wireless access points (APs) can be installed in various ways, including desktop, wall-mounted, and ceiling-mounted. Ceiling-mounted APs are typically installed on the ceiling to provide wireless network connectivity within the room while saving space.

[0003] Ceiling-mounted access points (APs) mainly consist of a mounting base and the device body. After the mounting base is fixed to the ceiling, the device body needs to be installed on the mounting base. The device body is usually assembled on the mounting base using screws to allow for detachable installation. Because the device body is located near the ceiling during assembly and disassembly, the screw removal process is very inconvenient, resulting in low efficiency in assembling and disassembling the device body on the mounting base. Utility Model Content

[0004] Therefore, it is necessary to provide a ceiling-mounted device to address the problem of low efficiency in disassembling and assembling the main body of the device.

[0005] A ceiling-mounted device includes a mounting base and a device body;

[0006] The mounting base includes a housing, an elastic element, and a sliding assembly. The sliding assembly is movably mounted on the housing, and a locking block is provided on the housing. One end of the elastic element is disposed on the sliding assembly so that the sliding assembly tends to move toward the locking block.

[0007] The main body of the device includes a body and a locking component. The locking component includes a locking rod and a locking cap. The locking cap is disposed at one end of the locking rod, and the other end of the locking rod is disposed on the body.

[0008] The ceiling-mounted device has at least a first installation state; when the ceiling-mounted device is in the first installation state, the locking rod is clamped between the locking block and the sliding assembly, and the locking cap is supported on the locking block and the sliding assembly.

[0009] In one embodiment, the ceiling-mounted device further has a second installation state;

[0010] When the ceiling-mounted device is in the second installation state, the projection of the locking cap on the axial direction of the locking rod avoids the locking block and the sliding assembly, so as to allow the locking cap to move between the locking block and the sliding assembly.

[0011] In one embodiment, the housing is provided with a clearance hole;

[0012] When the ceiling-mounted device is in the first installation state, the locking rod passes through the clearance hole, and at least a portion of the edge of the clearance hole is spaced apart from the locking rod;

[0013] When the ceiling-mounted device is in the second installation state, the projection of the locking cap on the axial direction of the locking rod is located within the clearance hole.

[0014] In one embodiment, the lock cap is provided with a first guide surface, the sliding component is provided with a second guide surface, and the ceiling-mounted device also has a third installation state;

[0015] When the ceiling-mounted device is in the third installation state, the first guide surface abuts against the second guide surface to allow the locking cap to control the movement of the sliding assembly on the housing by moving the locking rod axially.

[0016] In one embodiment, the edge of the clearance hole is provided with a third guide surface;

[0017] When the ceiling-mounted device is in the third installation state, the first guide surface also abuts against the third guide surface.

[0018] In one embodiment, a limiting block is provided on the housing, the limiting block being used to limit the sliding assembly along the axial direction of the locking rod.

[0019] In one embodiment, a portion of the sliding component is located within the clearance hole to provide movement guidance for the sliding component.

[0020] In one embodiment, the sliding assembly includes a locking unit having a locking portion, wherein when the ceiling device is in a first installation state, the locking rod is clamped between the locking block and the locking portion, and the locking cap is supported on the locking block and the locking portion.

[0021] In one embodiment, the sliding assembly further includes a pressing unit, the locking unit is mounted on the pressing unit, the housing sidewall is provided with a pressing port, and the pressing unit is movably disposed at the pressing port to allow the locking part to be moved away from the locking block by pressing the pressing unit.

[0022] In one embodiment, when the ceiling device is in a first installation state, the sliding component abuts against the locking block.

[0023] The beneficial effects of this utility model are as follows:

[0024] The process of installing the main body of the equipment onto the mounting base is as follows: the sliding component is controlled to move and squeeze the elastic element to create a sufficient gap between the sliding component and the locking block, thereby allowing the locking element to move upward between the sliding component and the locking block until the locking cap is above the locking block and the sliding component. Then, the sliding component is reset under the elastic force of the elastic element, and the locking rod can be clamped between the locking block and the sliding component. At the same time, under the action of gravity, the locking cap will automatically support itself on the locking block and the sliding component, thus completing the assembly of the main body of the equipment onto the mounting base.

[0025] The disassembly process of the main body of the equipment on the mounting base is as follows: control the movement of the sliding component and squeeze the elastic element to separate the sliding component and the locking element. Then the locking element can be further separated from the locking block, thereby completing the disassembly of the main body of the equipment.

[0026] Based on the above disassembly and assembly process of the main body of the device, it can be seen that the disassembly and assembly process of the main body of the device of this utility model on the mounting base does not require the use of screws, the operation is simple, and therefore the disassembly and assembly efficiency is high. Attached Figure Description

[0027] Figure 1 This is a three-dimensional structural diagram of the ceiling-mounted device in an embodiment of the present utility model. Figure 1 ;

[0028] Figure 2 This is an exploded structural diagram of the ceiling-mounted device in an embodiment of this utility model;

[0029] Figure 3 for Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 4 for Figure 2 Enlarged structural diagram at point B;

[0031] Figure 5 This is a three-dimensional structural diagram of the pressing unit in an embodiment of the present invention;

[0032] Figure 6 This is a three-dimensional structural diagram of the locking unit in an embodiment of the present invention. Figure 1 ;

[0033] Figure 7 This is a three-dimensional structural diagram of the locking unit in an embodiment of the present invention. Figure 2 ;

[0034] Figure 8 for Figure 7 A schematic diagram of the exploded structure;

[0035] Figure 9 The assembly relationship between the pressing unit and the housing in this embodiment of the utility model. Figure 1 ;

[0036] Figure 10 The assembly relationship between the pressing unit and the housing in this embodiment of the utility model. Figure 2 ;

[0037] Figure 11 for Figure 10 Enlarged structural diagram at point C;

[0038] Figure 12 The assembly relationship between the locking unit and the housing in this embodiment of the utility model. Figure 1 ;

[0039] Figure 13 The assembly relationship between the locking unit and the housing in this embodiment of the utility model. Figure 2 ;

[0040] Figure 14 for Figure 13 Enlarged structural diagram at point D;

[0041] Figure 15 This is a three-dimensional structural diagram of the mounting base in an embodiment of the present utility model;

[0042] Figure 16 for Figure 15 Enlarged structural diagram at point E;

[0043] Figure 17 This is a schematic diagram illustrating the assembly actions of the mounting base and the main body of the device in this embodiment of the present invention. Figure 1 ;

[0044] Figure 18 This is a schematic diagram illustrating the assembly actions of the mounting base and the main body of the device in this embodiment of the present invention. Figure 2 ;

[0045] Figure 19 This is a schematic diagram illustrating the assembly actions of the mounting base and the main body of the device in this embodiment of the present invention. Figure 3 ;

[0046] Figure 20 This is a schematic diagram illustrating the assembly actions of the mounting base and the main body of the device in this embodiment of the present invention. Figure 4 ;

[0047] Figure 21 This is a three-dimensional structural diagram of the ceiling-mounted device in an embodiment of the present utility model. Figure 2 ;

[0048] Figure 22 for Figure 21 Enlarged structural diagram at point F;

[0049] Figure 23 This is a three-dimensional structural diagram of the ceiling-mounted device after the pressing unit is pressed in this embodiment of the present invention;

[0050] Figure 24 for Figure 23 Enlarged structural diagram at point G in the middle.

[0051] Figure label:

[0052] 1. Mounting base; 11. Housing; 111. Locking block; 112. Clearance hole; 113. Third guide surface; 114. Limiting block; 115. Pressing port; 116. Positioning block; 12. Elastic element; 13. Sliding assembly; 131. Second guide surface; 132. Locking unit; 133. Locking part; 134. Pressing unit; 135. Limiting slide groove; 136. Locking block; 137. First slot; 138. Second slot; 2. Equipment body; 21. Body; 22. Locking element; 221. Locking rod; 222. Locking cap; 223. First guide surface. Detailed Implementation

[0053] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0054] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0055] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0056] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0057] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0058] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

[0059] Example:

[0060] like Figure 1 As shown, this embodiment provides a ceiling-mounted device, specifically including a mounting base 1 and a device body 2. The mounting base 1 can be fixed to the ceiling with screws or bolts, while the device body 2 needs to be detachably mounted on the mounting base 1. It is particularly noteworthy that in this embodiment, the device body 2 is not mounted on the mounting base 1 with screws.

[0061] See Figure 2 In this embodiment, the mounting base 1 includes a housing 11, an elastic element 12, and a sliding assembly 13, and the device body 2 includes a body 21 and a locking element 22.

[0062] The sliding component 13 is movably mounted on the housing 11, and the direction of movement of the sliding component 13 on the housing 11 is a first direction. For example, the sliding component 13 includes a pressing unit 134 and a locking unit 132. Specifically... Figures 5-8 as well as Figures 13-14 As shown, the pressing unit 134 is provided with a locking block 136, and the locking unit 132 is provided with a first locking groove 137. The locking block 136 is engaged in the first locking groove 137 so that the pressing unit 134 and the locking unit 132 are fixedly connected, and the pressing unit 134 and the locking unit 132 can move synchronously along the first direction on the housing 11.

[0063] See Figure 7 and Figure 8 For example, in this embodiment, the elastic element 12 is specifically a spring, and the locking unit 132 is provided with a second slot 138. One end of the elastic element 12 is engaged in the second slot 138, thereby positioning that end of the elastic element 12 on the sliding assembly 13. Figure 3 As shown, a positioning block 116 is also provided inside the housing 11. The positioning block 116 is fixedly connected to the housing 11 (such as an integral structure), and the other end of the elastic member 12 is engaged and positioned on the positioning block 116. The specific shape of the positioning block 116 and the way in which the end of the elastic member 12 is positioned on the positioning block 116 are existing technologies and will not be described in detail in this embodiment.

[0064] Based on the above structure, the two ends of the elastic element 12 are respectively positioned on the sliding component 13 and the housing 11. During the movement of the sliding component 13 along the first direction, the degree of deformation of the elastic element 12 can change.

[0065] like Figure 3 As shown, in this embodiment, a locking block 111 is also provided inside the housing 11, and the locking block 111 is fixedly connected to the housing 11. The elastic element 12 can cause the sliding component 13 to tend to move towards the locking block 111.

[0066] Specifically, such as Figures 6-8 As shown, the locking unit 132 has a locking portion 133, and the locking unit 132 is also provided with a limiting groove 135, with the locking portion 133 located at the end of the limiting groove 135. Further as... Figures 12-14 As shown, the locking block 111 is located in the limiting groove 135. When the sliding component 13 moves along the first direction, the locking block 111 will move within the limiting groove 135. Accordingly, the sliding component 13 will be limited by the locking block 111 regardless of whether it moves forward or backward in the first direction.

[0067] like Figure 13 and Figure 14As shown, in this embodiment, the sliding component 13 can move to make the locking part 133 abut against the locking block 111, thereby limiting the sliding component 13. At this time, the deformation of the elastic member 12 is relatively small, and based on the limiting effect of the locking block 111, the elastic member 12 cannot further recover. Therefore, there is still a certain pressure between the locking block 111 and the locking part 133. On the other hand, if the locking part 133 is to be moved away from the locking block 111, the elastic force of the elastic member 12 needs to be overcome, thereby increasing the degree of deformation of the elastic member 12.

[0068] Furthermore, in this embodiment, before the main body 2 of the device is assembled to the mounting base 1, the locking part 133 abuts against the locking block 111, and the pressing unit 134 also abuts against the inner wall of the housing 11. Thus, the inner wall of the housing 11 can also limit the sliding component 13. Specifically, as follows... Figure 3 , Figures 9-14 As shown, in this embodiment, a pressing port 115 is also provided on the side wall of the housing 11. When the locking part 133 abuts against the locking block 111, a portion of the pressing unit 134 is located at the pressing port 115, so as to facilitate the disassembly and assembly personnel to press the pressing unit 134. By pressing the pressing unit 134 at the pressing port 115, the disassembly and assembly personnel can make the pressing unit 134 move along the first direction on the housing 11, thereby controlling the locking part 133 to gradually move away from the locking block 111.

[0069] See you again Figure 2 and Figure 3 In this embodiment, a clearance hole 112 is provided on the bottom side wall of the housing 11, and the locking block 111 is located at the edge of the clearance hole 112.

[0070] like Figure 4 As shown, the locking member 22 includes a locking rod 221 and a locking cap 222, wherein the locking cap 222 is disposed at the upper end of the locking rod 221, and the lower end of the locking rod 221 is disposed on the body 21. Normally, both the locking cap 222 and the body 21 are fixedly connected to the locking rod 221. Preferably, the locking cap 222 is provided with a first guide surface 223.

[0071] To match the first guide surface 223, specifically as follows: Figure 7 , Figure 8 , Figure 15 and Figure 16The locking unit 132 is provided with a second guide surface 131, which is located within the clearance hole 112 (i.e., a part of the locking unit 132 is located within the clearance hole 112). A third guide surface 113 is provided at the edge of the clearance hole 112. The shapes of the second guide surface 131 and the third guide surface 113 are adapted to the first guide surface 223. For example, the first guide surface 223 is generally a frustum, while the second guide surface 131 and the third guide surface 113 are half a frustum. The shape of the second guide surface 131 and the third guide surface 113 after being spliced ​​together is generally consistent with the first guide surface 223.

[0072] Specifically, such as Figure 15 and Figure 16 As shown, since the clearance hole 112 extends along the first direction and a portion of the locking unit 132 is located within the clearance hole 112, the clearance hole 112 can guide the movement of the sliding assembly 13 in the first direction.

[0073] The ceiling-mounted device in this embodiment has a first installation state, a second installation state, and a third installation state.

[0074] like Figures 20-22 As shown, when the ceiling-mounted device is in the first installation state, the locking rod 221 passes through the clearance hole 112, and at least a portion of the edge of the clearance hole 112 is spaced apart from the locking rod 221. Under the elastic action of the elastic member 12, the locking rod 221 is clamped between the locking block 111 and the locking part 133. Since the diameter of the locking cap 222 is larger than the diameter of the locking rod 221, the locking cap 222 can be supported on both the locking block 111 and the locking part 133 simultaneously. Preferably, when the ceiling-mounted device is in the first installation state, the locking part 133 also abuts against the locking block 111, and correspondingly, the pressing unit 134 is also located at the pressing port 115.

[0075] As a preferred option, such as Figure 3 , Figure 11 and Figure 14 As shown, in this embodiment, a limiting block 114 is provided on the housing 11, which can limit the sliding component 13 along the axial direction of the locking rod 221.

[0076] like Figure 18 As shown, when the ceiling-mounted device is in the third installation state, the locking rod 221 is located outside the clearance hole 112, and the locking cap 222 is located at the clearance hole 112. The first guide surface 223 simultaneously abuts against the third guide surface 113 and the second guide surface 131.

[0077] The process of installing the main body 2 of the device onto the mounting base 1 in this embodiment includes the following steps:

[0078] Step 101: As Figure 17As shown, first move the main body 2 of the device to the bottom of the mounting base 1, and align the locking cap 222 between the locking block 111 and the locking part 133.

[0079] Step 102: As Figure 18 As shown, by moving the main body 2 upwards, the locking cap 222 moves to the clearance hole 112, and the ceiling-mounted device is switched to a third installation state. In the third installation state, as the main body 2 continues to move upwards, the sliding component 13 moves in the first direction under the cooperation of the first guide surface 223 and the second guide surface 131. At the same time, the locking part 133 and the locking block 111 separate from each other and the distance between them gradually increases until the first guide surface 223 and the second guide surface 131 separate. In the above process, through the cooperation of the third guide surface 113 and the first guide surface 223, the locking cap 222 can enter more smoothly between the locking block 111 and the locking part 133. Since the clearance hole 112 extends along the first direction, when the third guide surface 113 guides the locking cap 222, the locking cap 222 will also move along the first direction at the clearance hole 112.

[0080] Step 103: As Figure 19 As shown, as the main body 2 of the equipment rises continuously, after the first guide surface 223 separates from the second guide surface 131 and the third guide surface 113, the locking cap 222 is clamped between the locking block 111 and the locking part 133. Correspondingly, the locking rod 221 with a smaller diameter will be spaced between the locking block 111 and the locking part 133.

[0081] Step 104: Continue moving the main body 2 of the device upwards until the locking cap 222 is above the locking block 111 and the locking part 133. At this point, the locking cap 222 will lose the limiting effect of the locking block 111, and the main body 2 of the device can move along the first direction to allow the locking rod 221 to engage with the locking block 111. After the locking rod 221 engages with the locking block 111, a portion of the locking cap 222 will also move directly above the locking block 111. As the locking rod 221 gradually approaches the locking block 111, based on the elastic force of the elastic element 12, the locking part 133 will also move closer to the locking rod 221. Finally, under the action of gravity, the ceiling-mounted device transitions to the first installation state.

[0082] In step 102 of some other embodiments, the locking part 133 and the locking block 111 can be separated from each other and a sufficient gap can be created by pressing the pressing unit 134 at the pressing port 115, thereby allowing the lock cap 222 to move above the locking part 133 and the locking block 111.

[0083] The process of removing the main body 2 of the device from the mounting base 1 in this embodiment includes the following steps:

[0084] Step 201: As Figure 23 and Figure 24As shown, first press the pressing unit 134 at the pressing port 115 to separate the locking part 133 and the lock cap 222, so that the locking part 133 no longer supports the lock cap 222.

[0085] Step 202: After the locking part 133 and the locking cap 222 separate, the device body 2 can be moved a short distance along the first direction by utilizing the gap between the clearance hole 112 and the locking rod 221, so that the ceiling device can be switched to the second installation state. When the ceiling device is in the second installation state, the locking block 111 and the locking part 133 are both spaced apart from the locking member 22 and no longer support the locking cap 222. The projection of the locking cap 222 in the axial direction of the locking rod 221 avoids the locking block 111 and the sliding component 13, and the projection of the locking cap 222 in the axial direction of the locking rod 221 is located in the clearance hole 112.

[0086] Step 203: When the ceiling-mounted device is in the second installation state, the movement of the device body 2 in the axial direction of the locking rod 221 is no longer restricted by the locking block 111 and the locking part 133. The locking cap 222 can move between the locking block 111 and the sliding component 13. As long as the device body 2 is moved downward along the axial direction of the locking rod 221, the locking part 22 can be disengaged from the housing 11 through the clearance hole 112, thus completing the disassembly of the device body 2.

[0087] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0088] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A ceiling-mounted device, comprising a mounting base (1) and a device body (2), characterized in that: The mounting base (1) includes a housing (11), an elastic element (12), and a sliding assembly (13). The sliding assembly (13) is movably mounted on the housing (11). A locking block (111) is provided on the housing (11). One end of the elastic element (12) is provided on the sliding assembly (13) so that the sliding assembly (13) tends to move toward the locking block (111). The main body (2) of the device includes a body (21) and a locking member (22). The locking member (22) includes a locking rod (221) and a locking cap (222). The locking cap (222) is disposed at one end of the locking rod (221), and the other end of the locking rod (221) is disposed on the main body (21). The ceiling-mounted device has at least a first installation state; when the ceiling-mounted device is in the first installation state, the locking rod (221) is clamped between the locking block (111) and the sliding assembly (13), and the locking cap (222) is supported on the locking block (111) and the sliding assembly (13).

2. The ceiling-mounted device according to claim 1, characterized in that, The ceiling-mounted device also has a second installation state; When the ceiling device is in the second installation state, the projection of the locking cap (222) on the axial direction of the locking rod (221) avoids the locking block (111) and the sliding assembly (13) to allow the locking cap (222) to move between the locking block (111) and the sliding assembly (13).

3. The ceiling-mounted device according to claim 2, characterized in that, The housing (11) is provided with a clearance hole (112); When the ceiling-mounted device is in the first installation state, the locking rod (221) passes through the clearance hole (112), and at least a portion of the edge of the clearance hole (112) and the locking rod (221) are spaced apart. When the ceiling device is in the second installation state, the projection of the locking cap (222) on the axial direction of the locking rod (221) is located in the clearance hole (112).

4. The ceiling-mounted device according to claim 3, characterized in that, The locking cap (222) is provided with a first guide surface (223), the sliding component (13) is provided with a second guide surface (131), and the ceiling-mounted device also has a third installation state; When the ceiling device is in the third installation state, the first guide surface (223) abuts against the second guide surface (131) to allow the locking cap (222) to control the movement of the sliding assembly (13) on the housing (11) by moving the locking rod (221) axially.

5. The ceiling-mounted device according to claim 4, characterized in that, The edge of the clearance hole (112) is provided with a third guide surface (113); When the ceiling-mounted device is in the third installation state, the first guide surface (223) also abuts against the third guide surface (113).

6. The ceiling-mounted device according to claim 4, characterized in that, A limiting block (114) is provided on the housing (11), and the limiting block (114) is used to limit the sliding assembly (13) along the axial direction of the locking rod (221).

7. The ceiling-mounted device according to claim 3, characterized in that, A portion of the sliding component (13) is located within the clearance hole (112) to provide movement guidance for the sliding component (13).

8. The ceiling-mounted device according to claim 2, characterized in that, The sliding assembly (13) includes a locking unit (132) having a locking part (133). When the ceiling device is in the first installation state, the locking rod (221) is clamped between the locking block (111) and the locking part (133), and the locking cap (222) is supported on the locking block (111) and the locking part (133).

9. The ceiling-mounted device according to claim 8, characterized in that, The sliding assembly (13) further includes a pressing unit (134), the locking unit (132) is mounted on the pressing unit (134), and a pressing port (115) is provided on the side wall of the housing (11). The pressing unit (134) is movably disposed at the pressing port (115) so that the locking part (133) is moved away from the locking block (111) by pressing the pressing unit (134).

10. The ceiling-mounted device according to claim 1, characterized in that, When the ceiling-mounted device is in the first installation state, the sliding component (13) abuts against the locking block (111).

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