Lamp

Abstract

The utility model discloses a lamp, and relates to the field of lighting electric appliances. A lamp comprises a shell, a circuit board, a first lamp module and a plurality of second lamp modules. The shell is provided with a containing cavity and a first containing groove, and the containing cavity and the first containing groove are arranged at intervals in the axis direction of the shell; the circuit board is arranged in the containing cavity, the first lamp module is arranged in the first containing groove, and the circuit board is connected with the first lamp module through an electric connecting piece. Each second lamp module is provided with a switching fixing piece, and the switching fixing pieces of the second lamp modules are distributed in the circumferential direction of the shell and connected with the shell. The problem that the circuit board is prone to damage due to high temperature caused by heat emitted by the lamp panel can be solved at least.

Description

Technical Field

[0001] This application belongs to the technical field of lighting appliances, specifically relating to a lamp. Background Technology

[0002] In some lighting fixtures in related technologies, the lamp board and circuit board are located in the same space. However, during operation, the lamp board generates and dissipates heat to the surroundings, resulting in the circuit board being in a high-temperature environment. Over time, this can easily damage the circuit board and affect the normal use of the lighting fixture. Utility Model Content

[0003] The purpose of this application is to provide a lamp that can solve the problem of the heat emitted by the lamp board causing the circuit board to overheat and be easily damaged.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] This application provides a lamp, including: a housing, a circuit board, a first lamp module, and a plurality of second lamp modules;

[0006] The housing is provided with a receiving cavity and a first receiving groove, the receiving cavity and the first receiving groove being spaced apart along the axial direction of the housing;

[0007] The circuit board is disposed in the receiving cavity, the first lamp module is disposed in the first receiving slot, and the circuit board and the first lamp module are connected by an electrical connector.

[0008] Each of the second lighting modules is provided with an adapter fixing component, and the adapter fixing components of the plurality of second lighting modules are distributed along the circumference of the housing and are respectively connected to the housing.

[0009] In this embodiment, the circuit board is placed in the receiving cavity, and the first lamp module is placed in the first receiving slot. This separates the circuit board from the first lamp module, preventing heat generated by the first lamp module in the first receiving slot from entering the receiving cavity where the circuit board is located. This ensures that the circuit board is not in a high-temperature environment, which helps to extend the service life of the circuit board and alleviate the problem of damage caused by high temperature. Furthermore, by having multiple second lamp modules work in conjunction with the first lamp module, the overall brightness of the lamp can be improved, and the appearance of the lamp can also be enhanced, providing users with a better visual experience. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the structure of the lamp disclosed in the embodiments of this application;

[0011] Figure 2This is a partial cross-sectional schematic diagram of the lighting fixture disclosed in the embodiments of this application;

[0012] Figure 3 This is a schematic diagram of the structure of the housing, adapter fastener, and suspension assembly disclosed in the embodiments of this application;

[0013] Figure 4 This is a schematic diagram of the shell, adapter fastener, and suspension assembly with the cover removed, as disclosed in an embodiment of this application.

[0014] Figure 5 This is a first structural schematic diagram of the shell body disclosed in an embodiment of this application;

[0015] Figure 6 This is a schematic diagram of the second structure of the shell body disclosed in the embodiments of this application;

[0016] Figure 7 This is a schematic diagram of the structure of the transparent cover disclosed in the embodiments of this application;

[0017] Figure 8 This is a schematic diagram of the circuit board, light source board, diffuser cover, and transparent cover structures disclosed in the embodiments of this application;

[0018] Figure 9 This is a cross-sectional schematic diagram of the suspension assembly disclosed in the embodiments of this application;

[0019] Figure 10 This is a schematic diagram of the structure of the adapter fastener disclosed in the embodiments of this application.

[0020] Explanation of reference numerals in the attached figures:

[0021] 10-Shell; 11-Shell body; 111-Partition; 1111-Through hole; 1112-Limiting protrusion; 1113-Embedding groove; 112-First receiving groove; 113-Second receiving groove; 114-First stepped surface; 115-Mounting slot; 116-Snap protrusion; 12-Cover; 121-Suspension hole; 122-Limiting protrusion;

[0022] 20 - Circuit board;

[0023] 30 - First lighting module; 31 - Light source board; 32 - Diffuser cover; 321 - First edge; 33 - Transparent cover; 331 - Boss; 332 - Second stepped surface; 333 - Slot;

[0024] 40 - Electrical connectors;

[0025] 50 - Suspension assembly; 51 - Suspension rod; 511 - Locking hole; 52 - Connector; 521 - Second edge; 53 - Locking element;

[0026] 60-Second lighting module; 61-First light source assembly; 62-Second light source assembly; 63-Third light source assembly; 64-Lamp arm; 65-Lamp holder; 66-Adapter fastener; 661-Limiting hole. Detailed Implementation

[0027] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] The embodiments of this application will be described in detail below with reference to the accompanying drawings and specific examples and application scenarios.

[0030] refer to Figures 1 to 10 This application discloses a lamp, which includes a housing 10, a circuit board 20, a first lamp module 30 and a plurality of second lamp modules 60.

[0031] The housing 10 is a basic component that provides a support and mounting base for the circuit board 20, the first lighting module 30, the second lighting module 60, etc. In some embodiments, the housing 10 may have a receiving cavity and a first receiving groove 112, and the receiving cavity and the first receiving groove 112 are spaced apart along the axial direction of the housing 10. It should be noted that the receiving cavity and the first receiving groove 112 are isolated from each other in the axial direction of the housing 10 to provide receiving space for different components. In the actual use of the lighting fixture, the axial direction of the housing 10 can be vertical.

[0032] The circuit board 20 is the main electrical component of the lamp, which can be used to control the first lamp module 30. Of course, the circuit board 20 can also be used to control the second lamp module 60. The circuit board 20 can be housed in a receiving cavity to accommodate and install the circuit board 20, and the receiving cavity can also provide a certain degree of protection to prevent external substances from damaging the circuit board 20.

[0033] The first lighting module 30 is the lighting element of a lamp. The first lighting module 30 is disposed in the first receiving groove 112, which allows for the housing and installation of the first lighting module 30 and also provides some protection against damage from external substances. Optionally, at least a portion of the first lighting module 30 may be located within the first receiving groove 112, while another portion may be located outside the first receiving groove 112 to facilitate external illumination.

[0034] Considering that the circuit board 20 is located in the receiving cavity and the first lamp module 30 is located in the first receiving slot 112, in order to realize the connection between the circuit board 20 and the first lamp module 30, in this embodiment of the application, the circuit board 20 and the first lamp module 30 can be connected through the electrical connector 40. In this way, electrical energy and control signals can be transmitted from the circuit board 20 to the first lamp module 30 to make the first lamp module 30 light up or turn off.

[0035] Optionally, the electrical connector 40 can be a wire, a metal needle, a metal sheet, or other components. Of course, it can also be other components, but no specific limitation is made here.

[0036] refer to Figure 1 and Figure 2 In some embodiments, the lamp may also include a plurality of second lamp modules 60, each of which is provided with an adapter fixing member 66, and the adapter fixing member 66 of each of the plurality of second lamp modules 60 can be connected to the housing 10 respectively.

[0037] Optionally, the second lighting module 60 may include a lamp arm 64, a lamp holder 65, a first light source assembly 61, a second light source assembly 62, and a third light source assembly 63. One end of the lamp arm 64 is connected to the adapter 66, and the other end of the lamp arm 64 is connected to the lamp holder 65. The first light source assembly 61 is disposed on the lamp holder 65, the second light source assembly 62 may be arranged around the outer peripheral wall of the lamp holder 65, and the third light source assembly 63 may be arranged along the extending direction of the lamp arm 64.

[0038] Based on the above configuration, the brightness of the second lighting module 60 can be improved by the cooperation of the first light source component 61, the second light source component 62 and the third light source component 63. In addition, the space utilization rate of the second lighting module 60 can also be improved.

[0039] In this embodiment, the circuit board 20 is disposed in the receiving cavity, and the first lamp module 30 is disposed in the first receiving groove 112. In this way, the circuit board 20 and the first lamp module 30 can be separated, so that the heat generated by the first lamp module 30 in the first receiving groove 112 will not enter the receiving cavity where the circuit board 20 is located. This ensures that the circuit board 20 is not in a high-temperature environment, which is beneficial to improving the service life of the circuit board 20 and alleviating the problem of the circuit board 20 being damaged due to high temperature. Furthermore, by having multiple second lamp modules 60 cooperate with the first lamp module 30, the overall brightness of the lamp can be improved, and the appearance performance of the lamp can also be improved, giving users a good visual experience.

[0040] refer to Figures 3 to 6 In some embodiments, the housing 10 may include a housing body 11 and a cover 12. The housing body 11 may have a partition 111, which divides the inner cavity of the housing body 11 into a first receiving groove 112 and a second receiving groove 113. The first receiving groove 112 and the second receiving groove 113 are arranged opposite to each other in the axial direction. Thus, the partition 111 isolates the two receiving grooves, further isolating the first lighting module 30 located in the first receiving groove 112 from the circuit board 20 located in the second receiving groove 113. This prevents the heat generated by the first lighting module 30 during operation from being directly transferred to the circuit board 20, causing the circuit board 20 to overheat, and thus improving the service life of the circuit board 20.

[0041] Optionally, the partition 111 can be fixed to the inner wall of the shell body 11, such as by welding, riveting, bonding, screwing, snapping, etc.; of course, the partition 111 and the shell body 11 can also be an integral structure, such as by integral molding or machining to form the partition 111 inside the shell body 11.

[0042] The cover 12 is detachably disposed at the opening of the second receiving groove 113, so that the wall of the second receiving groove 113 can be enclosed by the cover 12 to form a receiving cavity for accommodating the circuit board 20.

[0043] Optionally, the cover 12 can be installed at the opening of the second receiving groove 113 by means of snap-fit, screw-fit, plug-in, etc., so as to facilitate disassembly and assembly and facilitate maintenance of the circuit board 20.

[0044] In some more specific embodiments, the plate surface of the partition 111 facing the second receiving groove 113 may be provided with multiple support pillars, each support pillar having a threaded hole; correspondingly, the cover 12 has multiple holes. Based on this, the cover 12 can be supported by multiple support pillars, and multiple fastening screws can pass through the corresponding holes and be threadedly connected to the corresponding threaded holes, thereby improving the reliability and stability of the connection between the cover 12 and the shell body 11.

[0045] To allow the electrical connector 40 to pass through, the partition 111 may have a through hole 1111. The electrical connector 40 passes through the through hole 1111, and both ends of the electrical connector 40 extend to the first receiving groove 112 and the second receiving groove 113, respectively, and are connected to the circuit board 20 and the first lighting module 30, respectively. This arrangement prevents the partition 111 from blocking the electrical connector 40, ensuring that the electrical connector 40 can be connected to the circuit board 20 and the first lighting module 30, respectively. This allows the electrical energy and control signals from the circuit board 20 to be transmitted to the first lighting module 30 through the electrical connector 40, thereby controlling the first lighting module 30 to light up or turn off.

[0046] Optionally, the electrical connector 40 can be a pin, and correspondingly, the circuit board 20 and the first lamp module 30 can each be provided with a plug, with the two ends of the pin inserted into the corresponding plug to facilitate the assembly and disassembly of the first lamp module 30 and the circuit board 20.

[0047] To prevent the first receiving groove 112 from being arbitrarily connected to the second receiving groove 113, a sealing element may be provided at the through hole 1111. The sealing element may also be made of heat-insulating material to reduce the heat in the first receiving groove 112 from being transferred to the second receiving groove 113 through the through hole 1111.

[0048] refer to Figure 7 and Figure 8 In some embodiments, the first lighting module 30 may include a light source board 31, a diffuser 32, and a transparent cover 33. The light source board 31 is used to emit light and may be equipped with multiple LED beads. The light source board 31 is connected to the circuit board 20 so that it can be lit when powered on.

[0049] Optionally, the light source board 31 can be installed at the bottom of the first receiving groove 112, that is, the light source board 31 is installed on the plate surface of the partition 111 facing the first receiving groove 112, so as to ensure the installation stability of the light source board 31.

[0050] Furthermore, the surface of the partition 111 facing the first receiving groove 112 may be provided with positioning posts, and correspondingly, the light source plate 31 may be provided with positioning holes. The installation accuracy of the light source plate 31 can be ensured by the cooperation of the positioning posts and positioning holes. In addition, the light source plate 31 can be installed on the partition 111 by fastening screws.

[0051] At least a portion of the diffuser 32 is disposed within the first receiving groove 112 and is disposed opposite to the light source plate 31. Thus, the first receiving groove 112 can provide protection for the diffuser 32 and ensure that the light emitted by the light source plate 31 can be diffused through the diffuser 32 so that the light can be emitted outward to achieve the lighting effect.

[0052] Optionally, the diffuser 32 can be a disc-shaped structure, or of course, other shapes, which are not specifically limited here.

[0053] The transparent cover 33 is placed on the outside of the diffuser 32 and connected to the shell body 11 so as to surround the diffuser 32 through the side wall of the transparent cover 33 and the first receiving groove 112, which can protect the diffuser 32. In addition, it can also include the ability of light diffused by the diffuser 32 to be emitted outward.

[0054] Optionally, the transparent cover 33 and the shell body 11 can be detachably connected to facilitate disassembly and assembly, and to facilitate maintenance of the light source board 31 and the diffuser cover 32.

[0055] refer to Figures 6 to 8 In some more specific embodiments, one of the transparent cover 33 and the housing 10 (or the housing body 11) may be provided with a slot 333, and the other may be provided with a protrusion 116, with the slot 333 and the protrusion 116 engaging in a snap-fit ​​relationship. Based on this, a detachable connection between the transparent cover 33 and the housing 10 can be achieved through the snap-fit ​​relationship between the slot 333 and the protrusion 116, facilitating the installation and removal of the transparent cover 33. Optionally, the slot 333 may be provided on the transparent cover 33, and the protrusion 116 on the housing body 11; alternatively, the slot 333 may be provided on the housing body 11, and the protrusion 116 on the transparent cover 33.

[0056] To fix the diffuser 32, the inner wall of the first receiving groove 112 near the groove opening can be provided with a first stepped surface 114, and the outer wall of the diffuser 32 can be provided with a first edge 321 arranged along its own circumference. The first edge 321 overlaps with the first stepped surface 114. In this way, the first stepped surface 114 can limit one side of the first edge 321.

[0057] The end of the transparent cover 33 may be provided with a protrusion 331 arranged circumferentially, and the outer periphery of the protrusion 331 forms a second stepped surface 332. Thus, when the transparent cover 33 is installed to the housing 10, the protrusion 331 abuts against the first edge 321, and the second stepped surface 332 abuts against the end face of the slot of the first receiving groove 112. Based on this arrangement, the protrusion 331 of the transparent cover 33 can limit the other side of the first edge 321, and the abutment between the second stepped surface 332 and the end face of the slot of the first receiving groove 112 can effectively prevent external substances from entering the lamp.

[0058] Optionally, the sidewall of the housing body 11 may be provided with a plurality of mounting holes arranged circumferentially along the housing 10. The plurality of mounting holes are respectively connected to the inner cavity of the receiving cavity. In this way, the adapter fixing parts 66 of the plurality of second lamp modules 60 can be respectively inserted into the receiving cavity through the corresponding mounting holes and connected to the housing 10 by fasteners.

[0059] In some embodiments, one of the partition 111 and the adapter 66 may be provided with a limiting protrusion 1112, and the other may be provided with a limiting hole 661, with the limiting hole 661 and the limiting protrusion 1112 engaging and connecting. Based on this, the reliability and stability of the connection between the adapter 66 and the partition 111 can be further improved by the engagement between the limiting hole 661 and the limiting protrusion 1112.

[0060] Considering that the housing 10 may include a housing body 11 and a cover 12, in order to facilitate the connection between the adapter 66 and the housing 10, the side wall of the housing body 11 in this embodiment may be provided with a plurality of mounting slots 115. The plurality of mounting slots 115 are arranged circumferentially along the housing 10 and are respectively set towards the cover 12. In this way, the cover 12 can block the plurality of mounting slots 115 respectively, thereby forming a plurality of mounting holes arranged circumferentially on the side wall of the housing 10, so as to facilitate the insertion of the adapter 66.

[0061] To prevent the adapter fastener 66 from moving freely within the mounting holes, the outer periphery of the cover 12 may be provided with multiple limiting protrusions 122, which are respectively located in multiple mounting slots 115, thus forming multiple mounting holes. Correspondingly, the multiple adapter fasteners 66 are respectively embedded into the multiple mounting slots 115, and each adapter fastener 66 abuts against the multiple limiting protrusions 122. Based on this arrangement, the limiting protrusions 122 can press and fix the adapter fastener 66, ensuring the installation stability of the adapter fastener 66.

[0062] To further improve the stability of the connection between the adapter 66 and the housing 10, the surface of the partition 111 facing the cover 12 can be provided with multiple recessed grooves 1113, such as... Figure 4 and Figure 5 As shown, multiple embedding slots 1113 are respectively provided corresponding to multiple mounting slots 115, and at least a portion of each of the multiple adapter fasteners 66 is embedded in the corresponding embedding slot 1113. Based on this arrangement, the edge of the adapter fastener 66 can be limited by the side wall of the embedding slot 1113 to prevent the adapter fastener 66 from moving on the surface of the partition 111.

[0063] In some more specific embodiments, the limiting protrusion 1112 can be set at the bottom of the embedding groove 1113. In addition, the fastener can be connected to the bottom of the embedding groove 1113 and together with the limiting protrusion 1112, it can limit and fasten the adapter fastener 66 to ensure the installation stability of the adapter fastener 66.

[0064] To achieve the suspension of the light fixtures, refer to Figure 9 The lighting fixture may also include a hanging rod 51, a connector 52, and a locking member 53, wherein the hanging rod 51, connector 52, and locking member 53 together form a suspension assembly 50. One end of the connector 52 may have a second edge 521 arranged circumferentially thereon, and one end of the housing 10 along its own axis may have a suspension hole 121. The connector 52 passes through the suspension hole 121, and the second edge 521 abuts against the inner wall of one end of the housing 10. Based on this arrangement, the connector 52 can be prevented from detaching from the housing 10 by the second edge 521 abutting against the inner wall of one end of the housing 10, ensuring the reliability of the connection between the connector 52 and the housing 10. Optionally, the suspension hole 121 may be formed on the cover 12.

[0065] One end of the suspension rod 51 is fitted onto the outside of the connector 52 and threadedly connected to the connector 52. Thus, the connection between the suspension rod 51 and the connector 52 enables the suspension of the lamp. It should be noted that after one end of the suspension rod 51 is threadedly connected to the connector 52, the end face of one end of the suspension rod 51 can abut against the outer wall of one end of the housing 10. In this way, it can cooperate with the second edge 521 to limit the wall surface of one end of the housing 10 (i.e., the cover 12) between the two, so as to ensure a reliable connection between the suspension assembly 50 and the housing 10.

[0066] To prevent relative rotation between the boom 51 and the connector 52, which could lead to accidental separation, in this embodiment, the side wall of the boom 51 may be provided with a locking hole 511. A locking member 53 is threaded into the locking hole 511 and abuts against the connector 52. Therefore, the locking member 53 can be used to lock the connector 52 and the boom 51, preventing the connector 52 from rotating freely and causing the threads to disengage, thus ensuring the reliability of the connection between the connector 52 and the boom 51.

[0067] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of this application without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of this application.

Claims

1. A lamp, characterized in that, include: Housing (10), circuit board (20), first lamp module (30) and multiple second lamp modules (60); The housing (10) is provided with a receiving cavity and a first receiving groove (112), and the receiving cavity and the first receiving groove (112) are spaced apart along the axial direction of the housing (10); The circuit board (20) is disposed in the receiving cavity, the first lamp module (30) is disposed in the first receiving slot (112), and the circuit board (20) and the first lamp module (30) are connected by an electrical connector (40). Each of the second lighting modules (60) is provided with a connecting fastener (66), and the connecting fasteners (66) of the plurality of second lighting modules (60) are distributed along the circumference of the housing (10) and are respectively connected to the housing (10).

2. The lamp according to claim 1, characterized in that, The shell (10) includes a shell body (11) and a cover (12). The shell body (11) is provided with a partition (111), which divides the inner cavity of the shell body (11) into a first receiving groove (112) and a second receiving groove (113). The first receiving groove (112) and the second receiving groove (113) are arranged opposite to each other in the axial direction. The cover (12) is detachably disposed at the opening of the second receiving groove (113) to form the receiving cavity.

3. The lamp according to claim 2, characterized in that, The partition (111) is provided with a through hole (1111); The electrical connector (40) passes through the through hole (1111), and the two ends of the electrical connector (40) extend to the first receiving groove (112) and the second receiving groove (113) respectively, and are connected to the circuit board (20) and the first lamp module (30) respectively.

4. The lamp according to claim 2, characterized in that, The first lighting module (30) includes a light source board (31), a diffuser (32), and a transparent cover (33); The light source plate (31) is disposed at the bottom of the first receiving groove (112); At least a portion of the diffuser (32) is disposed within the first receiving groove (112) and is disposed opposite to the light source plate (31); The transparent cover (33) is placed on the outside of the diffuser (32). One of the transparent cover (33) and the housing (10) is provided with a slot (333) and the other is provided with a protrusion (116). The slot (333) and the protrusion (116) engage with each other.

5. The lamp according to claim 4, characterized in that, The inner wall of the first receiving groove (112) near the groove opening is provided with a first stepped surface (114). The outer wall of the diffuser (32) is provided with a first edge (321) arranged along its own circumference, and the first edge (321) overlaps the first step surface (114). The end of the transparent cover (33) is provided with a boss (331) arranged along its circumference. A second step surface (332) is formed on the outer periphery of the boss (331). The boss (331) abuts against the first edge (321), and the second step surface (332) abuts against the end face of the groove of the first receiving groove (112).

6. The luminaire according to any one of claims 2 to 5, characterized in that, The side wall of the shell body (11) is provided with a plurality of mounting holes arranged circumferentially along the shell (10), and the plurality of mounting holes are respectively connected to the inner cavity of the receiving cavity; The adapters (66) of the plurality of second lamp modules (60) are respectively inserted into the receiving cavity through the corresponding mounting holes and connected to the shell body (11) by fasteners.

7. The lamp according to claim 6, characterized in that, One of the partition (111) and the adapter (66) is provided with a limiting protrusion (1112), and the other is provided with a limiting hole (661). The limiting hole (661) and the limiting protrusion (1112) are connected in cooperation.

8. The lamp according to claim 6, characterized in that, The side wall of the shell body (11) is provided with a plurality of mounting slots (115) arranged circumferentially along the shell (10) and facing the cover (12). The outer edge of the cover (12) is provided with a plurality of limiting protrusions (122), and the plurality of limiting protrusions (122) are respectively provided in a plurality of mounting slots (115) to form a plurality of mounting holes; The multiple adapter fasteners (66) are respectively embedded into the multiple mounting slots (115), and the multiple adapter fasteners (66) respectively abut against the multiple limiting protrusions (122).

9. The lamp according to claim 8, characterized in that, The partition (111) has a plurality of embedding grooves (1113) on the surface facing the cover (12), and the plurality of embedding grooves (1113) are respectively provided with a plurality of mounting slots (115); Each of the plurality of adapter fasteners (66) is at least partially embedded in the corresponding insert groove (1113).

10. The luminaire according to any one of claims 1 to 5, characterized in that, The lighting fixture also includes a hanging rod (51), a connector (52), and a locking component (53); The outer peripheral surface of one end of the connector (52) is provided with a second edge (521) arranged along its own circumference, and the housing (10) is provided with a suspension hole (121) at one end along its own axis. The connector (52) passes through the suspension hole (121), and the second edge (521) abuts against the inner wall of one end of the housing (10). One end of the boom (51) is sleeved on the outside of the connector (52) and threadedly connected to the connector (52); The side wall of the boom (51) is provided with a locking hole (511), and the locking member (53) is threadedly connected to the locking hole (511) and abuts against the connecting member (52).

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