Head-mounted lighting equipment

Abstract

The utility model provides head-mounted lighting equipment, including lamp holder, battery cover, sealing element, elastic subassembly and headband, headband is connected with lamp holder, headband is used for forming the accommodation space that is used for wearing, the lamp holder is provided with the accommodation cavity that is used for holding battery, and the side wall of lamp holder is provided with the opening that is communicated with accommodation cavity, and the opening is used for holding the battery. The battery cover is suitable for being matched with the opening so that the battery cover can be detachably arranged at the opening, the sealing piece is arranged on the battery cover and located at the connecting position of the battery cover and the lamp holder, the elastic assembly is arranged on the headband and used for adjusting the size of the containing space, the elastic assembly is provided with a limiting part, and the limiting part is suitable for being matched with the battery cover so that the battery cover can be detachably arranged at the opening. The battery cover covers the lamp cap or is separated from the lamp cap, extra tools are not needed to be carried, the battery cover can be installed or separated through the elastic assembly located on the head band, the sealing performance of the head lamp is guaranteed while a user can replace a battery conveniently, operation is convenient, and the structure is simple.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting equipment, in particular to a head-mounted lighting equipment. Background Art

[0002] Head-mounted lighting equipment is an indispensable and important equipment for outdoor activities. Compared with other lighting equipment, head-mounted lighting equipment does not need to be held in hand when used, freeing the user's hands and making it easy to use. At present, head-mounted lighting equipment is mostly used in outdoor activities, such as night hiking, night camping and cave exploration, and is very popular among people.

[0003] There are two main types of head-mounted lighting devices on the market. One type uses rechargeable lithium batteries for power supply. This type of battery can be charged and reused. However, when you are outdoors or encounter a disaster or emergency, there is no place to charge it. When the battery runs out, it loses its lighting function. Therefore, people design the batteries of head-mounted lighting devices to be replaceable. After the battery runs out, you can replace it with a dry cell or a fully charged battery to continue using it. The battery of a head-mounted lighting device is mostly set in the lamp body, and then the battery cover is fixed on the lamp body. However, when replacing the battery, the battery cover needs to be opened with the help of corresponding tools, which requires the user to carry additional tools, which brings inconvenience to the user. In addition, this type of detachable battery cover often has poor waterproof effect, causing moisture to penetrate into the device and affect normal operation.

[0004] Therefore, the utility model is dedicated to providing a head-mounted lighting device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a head-mounted lighting device. The elastic component can not only adjust the size of the accommodating space, but also be used to cooperate with the battery cover to achieve the installation or separation of the battery cover and the lamp head, which is convenient for replacing batteries outdoors and improves the user experience. Moreover, when the battery cover is set at the opening, the seal can have a good sealing effect, reduce the possibility of external moisture entering the interior of the headlamp, and the structure is simple.

[0006] The technical solution provided by the utility model is as follows:

[0007] A head-mounted lighting device comprises a lamp head, a battery cover, a seal, an elastic assembly and a headband, wherein the headband is connected to the lamp head and is used to form a storage space for wearing. The lamp head is provided with a storage cavity for placing batteries, and the side wall of the lamp head is provided with an opening connected to the storage cavity. The battery cover is suitable for cooperating with the opening so that the battery cover can be detachably arranged at the opening. The seal is arranged on the battery cover and is located at the connection between the battery cover and the lamp head.

[0008] Wherein, the elastic component is arranged on the headband to adjust the size of the accommodating space, and the elastic component has a limiting portion, which is suitable for cooperating with the battery cover to cover the battery cover on the lamp head or separate it from the lamp head.

[0009] In some embodiments, the outer peripheral side of the battery cover is provided with an external thread, and the inner wall of the opening is provided with an internal thread matching the external thread so that the battery cover can be installed in the opening, and the battery cover is provided with a limiting groove matching the limiting portion.

[0010] When the limiting portion extends into the limiting groove, the limiting portion is rotated with a preset force, thereby driving the battery cover to rotate, so that the battery cover is separated from the lamp holder.

[0011] In some embodiments, it further includes a first electrode sheet mounted and fixed on one side of the battery cover, and a second electrode sheet disposed in the accommodating cavity, wherein the first electrode sheet is suitable for contacting the first electrode of the battery.

[0012] The second electrode sheet is arranged at one end of the accommodating cavity away from the opening and is suitable for contacting with the second electrode of the battery.

[0013] The sealing member is arranged between the battery cover and the first electrode sheet. When the battery cover is arranged on the lamp head, the outer wall of the sealing member contacts the inner wall of the opening.

[0014] In some embodiments, the headband includes a headband and a mounting plate, and two ends of the headband in the length direction are respectively connected to two ends of the mounting plate in the length direction.

[0015] The lamp head is rotatably arranged on the mounting plate to adjust the irradiation angle of the lamp head.

[0016] In some embodiments, the lamp holder includes a shell and a battery compartment disposed in the shell, the battery compartment is used to place the battery, and the opening is opened on one side of the shell and communicated with the battery compartment.

[0017] In some embodiments, the mounting plate includes a plate body and two rotating buckles, and the two rotating buckles are respectively hinged at two ends of the plate body in the length direction.

[0018] The two ends of the hair strap in the length direction are respectively connected to the rotating buckle.

[0019] In some embodiments, the mounting plate further includes a damping shaft and two extending arms, wherein the two extending arms are disposed on the same side of the plate body and are located at two ends of the length direction of the plate body.

[0020] The damping shaft is arranged at a side where the two extending arms are close to each other, and the housing is rotatably arranged between the two damping shafts.

[0021] In some embodiments, the lamp head also includes a circuit board and a conductive component disposed in the shell, the circuit board is disposed on a side of the battery compartment away from the mounting plate, the conductive component is connected to the circuit board, and the second electrode sheet passes through the battery compartment and is connected to the circuit board.

[0022] When the battery cover is matched with the opening, the first electrode sheet is in contact with the conductive component and the first electrode at the same time to form a battery passage.

[0023] In some embodiments, a plurality of connection posts are provided on one side of the battery cover close to the battery, and a connection hole is provided on the first electrode sheet. The connection posts are suitable for snap-fitting with the connection hole to fix the first electrode sheet on the battery cover.

[0024] In some embodiments, the elastic assembly includes a first connecting part, a second connecting part and a first elastic member in a compressed state, the second connecting part is movably arranged in the first connecting part, the first elastic member is arranged between the first connecting part and the second connecting part, the first connecting part is provided with a first through hole, and the second connecting part is provided with a second through hole.

[0025] Among them, pressing the first connecting part or the second connecting part makes the first through hole aligned with the second through hole, and the head strap can move in the first through hole and the second through hole. Loosening the first connecting part or the second connecting part makes the first through hole and the second through hole misaligned, and the head strap is clamped in the first through hole and the second through hole.

[0026] The head-mounted lighting device provided by the utility model has the following beneficial effects:

[0027] 1. The utility model provides a head-mounted lighting device. On the one hand, the elastic component can adjust the size of the accommodating space formed by the headband to facilitate wearing the lighting device on the head, and the elastic component has a limiting portion that cooperates with the battery cover. The limiting portion can cooperate with the battery cover, and the battery cover can be removed from the lamp head, or the battery cover can be installed on the lamp head, thereby facilitating users to replace batteries, especially in outdoor use scenarios. Users do not need to carry additional operating tools, the operation is convenient, and the user experience is improved. In addition, a sealing member is provided on the battery cover, and users only need to cooperate the battery cover with the opening, and the sealing member can achieve a good sealing effect.

[0028] 2. The utility model provides a head-mounted lighting device, in which the lamp head is rotatably arranged on a mounting plate, which is convenient for adjusting the illumination angle of the lamp head and improving the flexibility of the head-mounted lighting device. Moreover, after the lamp head is adjusted to a suitable illumination angle, the damping shaft and the lamp head cooperate with each other, so that the lamp head can maintain a fixed illumination angle for a long time, which is convenient for users to use.

[0029] 3. The utility model provides a head-mounted lighting device, wherein a first electrode sheet is arranged on a side of a battery cover close to an opening, a second electrode sheet is arranged on a side of a battery compartment away from an opening, and a circuit board and a conductive component are both arranged in a shell. When a user sets the battery cover at the opening, the first electrode sheet, the battery, the second electrode sheet, the circuit board and the conductive component are electrically connected, while the outer wall of the seal contacts and squeezes the inner wall of the opening, making it difficult for moisture to enter the headlamp through the opening, thereby reducing the possibility of short circuit and leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The preferred implementation scheme will be described below in a clear and understandable manner with reference to the accompanying drawings to further illustrate the above-mentioned characteristics, technical features, advantages and implementation methods of the present solution.

[0031] Figure 1 It is a structural schematic diagram of a head-mounted lighting device provided by the utility model;

[0032] Figure 2 It is a structural schematic diagram of a lamp holder of a head-mounted lighting device provided by the utility model;

[0033] Figure 3 It is a front view of a lamp head of a head-mounted lighting device provided by the utility model;

[0034] Figure 4 It is a cross-sectional view along AA of a head-mounted lighting device provided by the utility model;

[0035] Figure 5 It is a structural schematic diagram of an elastic component of a head-mounted lighting device provided by the utility model;

[0036] Figure 6 It is an exploded schematic diagram of an elastic component of a head-mounted lighting device provided by the utility model;

[0037] Figure 7 It is a structural schematic diagram of a battery cover of a head-mounted lighting device provided by the utility model;

[0038] Figure 8 It is a schematic diagram of the interior of a battery compartment of a head-mounted lighting device provided by the utility model;

[0039] Fig. 9 The utility model provides a head-mounted lighting device Figure 4 A partial enlarged schematic diagram of B;

[0040] Fig.10 It is an enlarged view of a battery cover of a head-mounted lighting device provided by the utility model.

[0041] Description of Figure Numbers:

[0042] Lamp head 1, shell 11, battery compartment 12, battery 122, battery cover 2, limiting groove 21, first electrode sheet 22, connecting column 23, second electrode sheet 24, seal 25, conductive component 26, circuit board 27, elastic component 3, limiting part 31, first elastic part 32, first connecting part 33, first through hole 331, sliding groove 332, second connecting part 34, second through hole 341, positioning block 342, headband 4, head rope 41, mounting plate 42, plate body 421, extending arm 4211, rotating buckle 422, pad 423. DETAILED DESCRIPTION

[0043] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the specific implementation methods of the utility model will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings and other implementation methods can be obtained based on these drawings without creative work.

[0044] In order to simplify the drawings, only the parts related to the utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to simplify the drawings and facilitate understanding, in some figures, only one of the parts with the same structure or function is schematically drawn or marked. In this article, "one" not only means "only one", but also means "more than one".

[0045] In this document, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In addition, in the description of the present application, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0047] In one embodiment, a head-mounted lighting device is described, in which a user can remove a battery cover 2 from a lamp head 1 or install the battery cover 2 on the lamp head 1 through a limiting portion 31 of a tightening assembly 3, so that the user can replace a battery 122 of the head-mounted lighting device, especially when the user is engaged in outdoor activities, the battery 122 can be replaced without the user carrying or using other tools, and the operation is convenient. In addition, only a seal 25 needs to be provided on the battery cover 2, which can greatly improve the sealing performance of the lamp head 1.

[0048] Specifically, see the attached drawings of the specification Figures 1 to 10 A head-mounted lighting device comprises a lamp head 1, a battery cover 2, a seal 25, an elastic component 3 and a headband 4, wherein the headband 4 is connected to the lamp head 1 to form a storage space for a user to wear the lighting device on the head, and in addition, the elastic component 3 is arranged on the headband 4, and the user can adjust the size of the storage space by adjusting the elastic component 3, so that the lighting device can be suitable for different users. Accordingly, a storage cavity is arranged in the lamp head 1, and an opening connected to the storage cavity is arranged on the side wall of the lamp head 1, so that the battery 122 is placed in the storage cavity through the opening, so as to provide power for the lamp head 1. The battery cover 2 is suitable for matching with the opening, so that the battery cover 2 is detachably arranged at the opening of the lamp head 1, and when the battery cover 2 matches with the opening, it is used to limit the battery 122 to prevent the battery 122 from separating from the opening, and when the battery cover 2 is separated from the opening, the battery 122 can leave the lamp head 1 from the opening. Accordingly, the seal 25 is arranged on the battery cover 2 and is located at the connection between the battery cover 2 and the lamp holder 1. When the battery cover 2 is covered on the lamp holder 1, the seal 25 can well ensure the sealing of the connection between the battery cover 2 and the lamp holder 1.

[0049] The elastic assembly 3 has a limiting portion 31 , which is suitable for cooperating with the battery cover 2 , and can install and fix the battery cover 2 at the opening or separate the battery cover 2 from the lamp holder 1 .

[0050] In this embodiment, when the user uses the head-mounted lighting device for outdoor activities, after the battery 122 runs out of power, compared with the prior art, the user needs to carry additional tools to open the battery cover. The user can directly use the limiting portion 31 of the elastic component 3 to open the battery cover 2 and replace the battery 122, which greatly facilitates the user and improves the user experience.

[0051] In one embodiment, this embodiment further describes the specific structure of the battery cover 2. Figure 3 and Figure 6 The outer circumference of the battery cover 2 is provided with an external thread, and the inner part of the opening is provided with an internal thread, and the external thread and the internal thread cooperate with each other to install and fix the battery cover 2 in the opening. Accordingly, a limiting groove 21 is provided on the battery cover 2 to cooperate with the limiting portion 31, and the user can extend the limiting portion 31 into the limiting groove 21 and rotate the battery cover 2 with a preset force, so as to separate the battery cover 2 from the lamp head 1, or install and fix the battery cover 2 to the lamp head 1.

[0052] Preferably, a motor for driving the limiting portion 31 to rotate is disposed in the tension assembly 3 , and the limiting portion 31 can be driven to rotate by the motor, thereby driving the battery cover 2 to rotate by the limiting portion 31 .

[0053] In addition, the battery cover 2 and the lamp holder 1 are both provided with threaded holes, so that the battery cover 2 and the lamp holder 1 are connected and fixed by bolts, and a screwdriver is set in the tension assembly 3 to form a limiter 31. The screwdriver is rotatably set on the tension assembly 3, and when not in use, the screwdriver is rotated and stored in the tension assembly 3 to ensure the safety of the user. Of course, in actual production applications, there are many ways for the limiter 31 to cooperate with the battery cover 2, which are not described one by one here, and are all within the protection scope of the present utility model.

[0054] Further, see the accompanying drawings of the specification Figure 5 , Figure 8 and Fig. 9 The head-mounted lighting device for convenient battery replacement also includes a first electrode sheet 22 and a second electrode sheet 24. The first electrode sheet 22 is installed and fixed on one side of the battery cover 2. When the battery cover 2 is installed at the opening, the first electrode sheet 22 can contact the first electrode of the battery 122, so that the first electrode sheet 22 is connected to the battery 122. The second electrode sheet 24 is arranged in the accommodating cavity and is located on the side of the accommodating cavity away from the opening, and is suitable for contacting the second electrode of the battery 122 located in the accommodating cavity. Specifically, a plurality of connecting posts 23 are arranged on the side of the battery cover 2 close to the battery 122, and a connecting hole matching the connecting post 23 is arranged on the first electrode sheet 22. One end of the connecting post 23 is inserted into the connecting hole and engaged with the connecting hole, thereby installing and fixing the first electrode sheet 22 on the battery cover 2.

[0055] Preferably, the seal 25 is disposed between the battery cover 2 and the first electrode sheet 22. When the battery cover is placed on the lamp holder 1, the outer wall of the seal 25 can contact the inner wall of the opening to ensure the sealing of the battery cover 2 and the opening at the connection. In practical applications, the seal 25 is annularly sleeved on the outer side of the battery cover 2. The seal 25 has a certain elasticity, and the outer diameter of the seal 25 is slightly larger than the inner diameter of the opening to ensure the sealing. In addition, the battery 122 can also be clamped between a plurality of connecting columns 23, so that the battery 122 can be taken out of the accommodating cavity together with the battery cover 2.

[0056] It can be understood that the arrangement of the battery cover 2 and the seal 25 can not only facilitate the replacement of the battery 122, but also ensure the sealing between the battery cover 2 and the housing, and has a simple structure and is very convenient for the user to operate.

[0057] Specifically, the battery cover 2 includes a cover body and a limiting ring arranged inside the cover body, the external thread is arranged on the outer peripheral side of the cover body, the connecting column 23 is arranged in the limiting ring, the first electrode sheet 22 is inserted on the connecting column 23 and abuts against the limiting ring, and the sealing member 25 is sleeved on the outside of the limiting ring. When the cover body is threadably connected to the opening through the external thread, the outer wall of the sealing member 25 abuts against the inner wall of the opening.

[0058] In one embodiment, referring to the accompanying drawings, Figures 1 to 5 The present embodiment further describes the lamp holder 1. The lamp holder 1 includes a housing 11 and a battery compartment 12. The battery compartment 12 is disposed in the housing 11. The battery compartment 12 is used to place a battery 122. The opening of the battery compartment 12 is formed on a side wall of the housing 11 and communicates with the battery compartment 12.

[0059] Furthermore, the headband 4 includes a headband 41 and a mounting plate 42, and the two ends of the headband 41 in the length direction are respectively connected to the two ends of the mounting plate 42 in the length direction, so that the headband 41 and the mounting plate 42 enclose a receiving space for wearing. Accordingly, the lamp head 1 is rotatably arranged on the mounting plate 42, and the lamp head 1 is rotated relative to the mounting plate 42 to adjust the opening and closing angle of the lamp head 1.

[0060] In this way, the user can adjust the lamp head 1 to a suitable illumination angle according to actual usage requirements, the flexibility of the lighting equipment is greatly improved, and the user experience is further enhanced.

[0061] Furthermore, the mounting plate 42 includes a plate body 421 and two rotating buckles 422 arranged at both ends of the plate body 421 in the length direction, and the rotating buckles 422 are hingedly arranged with the plate body 421. Accordingly, the lamp head 1 is rotatably arranged on the plate body 421, and the two ends of the headband 41 in the length direction are respectively connected to the two rotating buckles 422. It can be understood that by hingedly connecting the rotating buckles 422 to the plate body 421, the flexibility of the lighting device can be further improved.

[0062] Preferably, the mounting plate 42 further includes a pad 423 , which is disposed on a side of the plate body 421 away from the lamp holder 1 . The pad 423 may be made of a softer material to enhance the wearing comfort of the lighting device.

[0063] In addition, two parallel extending arms 4211 are provided on one side of the mounting plate 42 (located on the side of the plate body 421 away from the pad 423), and the two extending arms 4211 are arranged at both ends of the length direction of the plate body 421. A damping shaft is provided on the side where the two extending arms 4211 are close to each other, and correspondingly, rotating holes matching the damping shaft are provided at both ends of the length direction of the shell 11, and the damping shaft is arranged in the rotating holes to realize the damping connection between the lamp holder 1 and the mounting plate 42.

[0064] It is understandable that when using the lighting device, the user can rotate the lamp head 1 so that the lamp head 1 rotates relative to the damping shaft. When the lamp head 1 is rotated to a suitable angle, the user stops rotating the lamp head 1. Due to the large friction between the damping shaft and the lamp head 1, the lamp head is kept at this irradiation angle under the action of the damping shaft, which is convenient for the user to use.

[0065] In one embodiment, this embodiment further describes a head-mounted lighting device. The lamp head 1 further includes a circuit board and a conductive component 26 disposed in the housing 11, wherein the circuit board is disposed on a side of the battery compartment 12 away from the mounting plate 42, the conductive component is connected to the circuit board, so that the conductive component is electrically connected to the circuit board, and the second electrode sheet 24 is connected to the second electrode of the battery 122 and is also connected to the circuit board through the battery compartment 12.

[0066] It is understandable that when the battery cover 2 is matched with the opening, that is, when the battery cover 2 is installed and fixed on the lamp holder 1, the first electrode sheet 22 on one side of the battery cover 2 can be connected to the conductive component and the first electrode of the battery 122 at the same time, and then electrically connected to the circuit board, so that the first electrode sheet 22, the battery 122, the second electrode sheet 24 and the circuit board are electrically connected to realize the battery path. Of course, when the battery cover 2 is separated from the opening, the first electrode sheet 22 is separated from the conductive component and the first electrode at the same time.

[0067] It can be understood that the first electrode sheet 22, the second electrode sheet 24, the circuit board and the battery 122 are all arranged in the lamp holder 1, and the opening on the lamp holder 1 can be well sealed by the battery cover 2, making it difficult for moisture to enter the interior of the lamp holder 1 through the opening to cause adverse effects on various electronic components, thereby reducing the possibility of short circuit and leakage.

[0068] Specifically, the conductive component includes a conductive sheet, and the conductive sheet includes a first portion and a second portion vertically arranged at one end of the first portion, so that the conductive sheet is L-shaped. The first portion of the conductive sheet is mounted on the circuit board and is located on the side of the circuit board away from the mounting plate 42, so that the second portion is arranged relative to the opening of the housing 11 away from one end of the first portion, so that when the battery cover 2 is mounted and fixed at the opening of the lamp holder 1, the first electrode sheet 22 of the battery cover 2 is connected to the conductive sheet. Similarly, when the battery cover 2 is removed from the lamp holder 1, the first electrode sheet 22 is separated from the conductive sheet.

[0069] Preferably, a shell is provided on the outer wall of the battery compartment 12, and the second elastic member is arranged in a compressed state inside the shell, so that the second part moves toward the direction close to the opening under the action of the restoring force of the second elastic member, so that the conductive sheet is in full contact with the first electrode sheet 22, thereby improving the electrical connection effect.

[0070] In one embodiment, referring to the accompanying drawings, Figure 5 , this embodiment further illustrates the elastic component 3. The elastic component 3 includes a first elastic member 32, a first connecting portion 33 and a second connecting portion 34, wherein the second connecting portion 34 is movably arranged in the first connecting portion 33, so that the second connecting portion 34 can move up and down relative to the first connecting portion 33. Accordingly, the first elastic member 32 is arranged between the first connecting portion 33 and the second connecting portion 34, and a first through hole 331 is arranged on the first connecting portion 33, and correspondingly, a second through hole 341 is arranged on the second connecting portion 34. When in use, the user can press the first connecting portion 33 or the second connecting portion 34 so that the first through hole 331 and the second through hole 341 are aligned, thereby allowing the headband 41 to move in the first through hole 331 and the second through hole 341, thereby adjusting the size of the accommodating space. In addition, when the user loosens the first connecting part 33 or the second connecting part 34, the first elastic member 32 in the compressed state can drive the first connecting part 33 and the second connecting part 34 to move relative to each other, thereby causing the first through hole 331 and the second through hole 341 to be misaligned, thereby clamping and fixing the headband 41 in the first through hole 331 and the second through hole 341.

[0071] In addition, a sliding groove 332 is provided on the first connecting portion 33, and correspondingly, a positioning block 342 matched with the sliding groove 332 is provided on the second connecting portion 34. The positioning block 342 moves in the sliding groove 332, so that the positioning block 342 and the first connecting portion 33 are limitedly matched to limit the stroke of the second connecting portion 34, thereby preventing the second connecting portion 34 from falling off from the first connecting portion 33. In addition, the limiting portion 31 is provided on the first connecting portion 33 or the second connecting portion 34.

[0072] It should be noted that the above embodiments can be freely combined as needed. The above is only a preferred implementation of the utility model. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications should also be regarded as the protection scope of the utility model.

Claims

1. A head-mounted lighting device, characterized in that: The invention comprises a lamp head, a battery cover, a sealing member, an elastic assembly and a headband, wherein the headband is connected to the lamp head, the headband is used to form a storage space for wearing, the lamp head is provided with a storage cavity for placing batteries, and a side wall of the lamp head is provided with an opening communicating with the storage cavity, the battery cover is suitable for cooperating with the opening so that the battery cover can be detachably arranged at the opening, and the sealing member is arranged on the battery cover and located at the connection between the battery cover and the lamp head; Wherein, the elastic component is arranged on the headband to adjust the size of the accommodating space, and the elastic component has a limiting portion, which is suitable for cooperating with the battery cover to cover the battery cover on the lamp head or separate it from the lamp head.

2. A head-mounted lighting device according to claim 1, characterized in that: The outer circumference of the battery cover is provided with an external thread, and the inner wall of the opening is provided with an internal thread matching the external thread, so that the battery cover can be installed in the opening, and the battery cover is provided with a limiting groove matching the limiting portion; When the limiting portion extends into the limiting groove, the limiting portion is rotated with a preset force, thereby driving the battery cover to rotate, so that the battery cover is separated from the lamp holder.

3. A head-mounted lighting device according to claim 2, characterized in that: It also includes a first electrode sheet fixed to one side of the battery cover, and a second electrode sheet disposed in the accommodating cavity, wherein the first electrode sheet is suitable for contacting the first electrode of the battery; The second electrode sheet is arranged at one end of the accommodating cavity away from the opening and is suitable for contacting with the second electrode of the battery; The sealing member is arranged between the battery cover and the first electrode sheet. When the battery cover is arranged on the lamp head, the outer wall of the sealing member contacts the inner wall of the opening.

4. A head-mounted lighting device according to claim 3, characterized in that: The headband includes a headband and a mounting plate, and two ends of the headband in the length direction are respectively connected to two ends of the mounting plate in the length direction; The lamp head is rotatably arranged on the mounting plate to adjust the irradiation angle of the lamp head.

5. A head-mounted lighting device according to claim 4, characterized in that: The lamp holder comprises a shell and a battery compartment arranged in the shell, the battery compartment is used to place the battery, and the opening is opened on one side of the shell and communicated with the battery compartment.

6. The head-mounted lighting device according to claim 5, characterized in that: The mounting plate comprises a plate body and two rotating buckles, wherein the two rotating buckles are respectively hinged at two ends of the plate body in the length direction; The two ends of the hair strap in the length direction are respectively connected to the rotating buckle.

7. The head-mounted lighting device according to claim 6, characterized in that: The mounting plate further comprises a damping shaft and two extending arms, wherein the two extending arms are arranged on the same side of the plate body and are located at two ends of the length direction of the plate body; The damping shaft is arranged at a side where the two extending arms are close to each other, and the housing is rotatably arranged between the two damping shafts.

8. The head-mounted lighting device according to claim 7, characterized in that: The lamp holder further comprises a circuit board and a conductive component arranged in the housing, the circuit board is arranged on a side of the battery compartment away from the mounting plate, the conductive component is connected to the circuit board, and the second electrode sheet passes through the battery compartment and is connected to the circuit board; When the battery cover is matched with the opening, the first electrode sheet is in contact with the conductive component and the first electrode at the same time to form a battery passage.

9. A head mounted lighting device according to any one of claims 3 to 8, characterized in that: A plurality of connection posts are arranged on one side of the battery cover close to the battery, and a connection hole is arranged on the first electrode sheet. The connection posts are suitable for engaging with the connection hole to fix the first electrode sheet on the battery cover.

10. The head-mounted lighting device according to claim 4, characterized in that: The elastic assembly comprises a first connecting part, a second connecting part and a first elastic member in a compressed state, the second connecting part is movably arranged in the first connecting part, the first elastic member is arranged between the first connecting part and the second connecting part, the first connecting part is provided with a first through hole, and the second connecting part is provided with a second through hole; Among them, pressing the first connecting part or the second connecting part makes the first through hole aligned with the second through hole, and the head strap can move in the first through hole and the second through hole. Loosening the first connecting part or the second connecting part makes the first through hole and the second through hole misaligned, and the head strap is clamped in the first through hole and the second through hole.

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