Portable lighting device with window breaking function

Abstract

The application belongs to the field of portable lighting devices, and discloses a portable lighting device with a window breaking function. The movable connecting mechanism enables the light source module to switch between a first position and a second position relative to the shell. The piercing part is fixedly installed at the end of the shell and coaxially arranged with the shell when in the first position. The central axis of the shell and the central axis of the piercing part are arranged at an angle when the piercing part is in the second position. When the piercing part is in the second position, the light source module automatically deviates from the space in front of the glass when breaking the window, thereby reducing the scratches and impacts of the splashed debris on the light source module, prolonging the service life of the lighting component, and isolating and significantly reducing the stress borne by the battery compartment and the internal battery cell due to the non-collinear angle formed between the piercing part and the shell when the piercing part is in the second position.

Description

Technical Field

[0001] This application belongs to the field of portable lighting devices, and specifically relates to a portable lighting device with a window-breaking function. Background Technology

[0002] Outdoor flashlights are often used as emergency tools in scenarios such as vehicle self-rescue and wilderness exploration. Chinese patent CN221121998U discloses a waterproof and shock-resistant outdoor flashlight, which has a multi-scene window breaker installed at the bottom, and the light source area is located at the front of the flashlight. The window breaker and the light source are respectively set at both ends of the body and are coaxial and opposite.

[0003] In emergencies such as a vehicle plunging into water, where escape via a broken window in dark or murky water is necessary, the window breaker is fixed to the rear, requiring the user to point the tail of the flashlight towards the window to break it. At this time, the light source at the front of the flashlight is directed towards the user's face, emitting a strong beam that shines directly into the eyes, causing severe glare and hindering the user's ability to observe the broken glass. Simultaneously, the axial impact load generated by breaking the window is transmitted directly along the housing axis to the battery compartment, subjecting the internal battery cells to high instantaneous stress and threatening the battery's structural integrity and electrical safety. Furthermore, if the window breaker and light source are integrated into the same end of the flashlight to eliminate glare, the high-speed glass shards flying from the moment the window is broken will directly impact the optical lenses of the light source module, causing scratches or malfunction of the lighting function. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this application is to provide a portable lighting device with window-breaking functionality, which solves the problem that fixed coaxial structures in the prior art cannot simultaneously ensure lighting visibility and battery safety during window-breaking operations.

[0005] The objective of this application can be achieved through the following technical solutions: A portable lighting device with a window-breaking function includes: a housing, and a battery compartment is provided on the inner side of the housing; The light source module is fixed at the end of the housing away from the battery compartment. The light source module is used to generate an illumination beam. A puncture point is movably installed at one end of the casing near the battery compartment; the puncture point is used to break the glass. A connecting mechanism is provided between the housing and the puncture part, and the movable connecting mechanism enables the light source module to switch between a first position and a second position relative to the housing. The puncture part is located at the first position, the puncture part is fixedly installed at the end of the housing, and the puncture part is coaxially arranged with the housing; The puncture site is located in the second position, and the central axis of the housing is set at an angle to the central axis of the puncture site.

[0006] In some disclosures, the connecting mechanism includes a rotating part and a straight rod part, the rotating part is fixed to the side wall of the housing, one end of the straight rod part is rotatably connected to the rotating part, and the other end of the straight rod part is fixedly connected to the puncture part.

[0007] In some disclosures, a threaded protrusion is fixed to one end of the puncture portion near the housing, and a threaded groove adapted to the threaded protrusion is fixed to one end of the housing near the puncture portion.

[0008] In some disclosures, a slide rail is fixed to the outer side of the puncture site, and at least one slider is slidably disposed on the outer side of the slide rail, with the straight rod portion fixedly connected to the slider.

[0009] In some disclosures, the straight rod portion includes a straight rod and a hollow rod, with one end of the straight rod fixedly connected to the slider and the other end of the straight rod slidably connected to the hollow rod, and the end of the hollow rod away from the straight rod being rotatably connected to the rotating portion.

[0010] In some disclosures, a light path switching component is slidably disposed on the outer side of the light source module.

[0011] In some disclosures, the optical path switching assembly includes laminated glass and an injection component. The front end of the light source module is fixed with laminated glass, and a cavity is formed on the inner side of the laminated glass. An injection component is fixed on the side wall of the housing. A connecting channel is fixed between the injection component and the cavity, and the injection component and the cavity form a communication channel through the connecting channel.

[0012] In some disclosures, the projected area of ​​the light-incident surface of the cavity in the direction perpendicular to the optical axis is not less than the projected area of ​​the light-emitting surface of the light source module in the direction perpendicular to the optical axis.

[0013] In some disclosures, a light shield is slidably provided on the outer wall of the housing, and a limiting groove is formed on the inner wall of the light shield. A limiting protrusion adapted to the limiting groove is fixed on the outer wall of the housing. A light outlet is formed through the light shield on the side wall of the light shield, and the light outlet is on the same side as the puncture part when it is in the second position.

[0014] In some disclosures, the injection component includes a sealing cavity and a piston rod, a sealing cavity parallel to the central axis of the housing is fixed on one side of the housing, and a movable rod is slidably fitted inside the sealing cavity, and the two ends of the connecting channel are respectively connected to the cavity and the sealing cavity.

[0015] The explanations of the nouns, conjunctions, or adjectives used in the above technical solutions are as follows: A fixed connection refers to a connection in which parts or components are fixed in place and there is no relative movement between them; A rotating connection is a connection between parts that allows the parts to rotate relative to each other. Threaded connections are a type of detachable fixed connection with advantages such as simple structure, reliable connection, and convenient assembly and disassembly. They are widely used in mechanical engineering and connection structure fields. A sliding connection is a connection between parts that allows the parts to slide against each other.

[0016] The beneficial effects of this application are: 1. The puncture section allows switching between a first position coaxial with the housing and a second position at an angle to the central axis of the housing. The first position is conducive to the comfort of daily hand-holding and the convenience of carrying and storing. When the puncture part is in the second position, the light source module automatically deviates from the front of the glass to avoid damage when the window is broken. This helps to reduce the scratches and impacts of flying debris on the light source module and extend the service life of the lighting components. At the same time, since the puncture part forms a non-collinear angle with the housing in the second position, the impact load is distributed along the puncture part to the external load-bearing structure of the housing through the connecting mechanism. This helps to isolate and significantly reduce the stress on the battery compartment and internal cells, maintaining the structural integrity and electrical safety performance of the battery.

[0017] 2. The puncture unit is guided to fold and switch from the first position to the second position through the connecting mechanism. The shell posture changes from axial to parallel to the glass surface, and the light emission direction of the light source module changes from axial to parallel to the glass surface simultaneously. At this time, the injection component is pressed to inject the milky white mixed liquid into the laminated glass cavity. The emitted light changes from axial focusing to radial scattering, turning the flashlight from a point light source into a columnar light source. Combined with the directional light emission from the light outlet on the side wall of the light shield, the actions of changing the window breaking posture, deflecting the illumination light path, and changing the emitted light shape are coordinated. This is beneficial for providing the operator with a wide range of diffused illumination that matches the hand movements during window breaking operations, reducing blind spots and interference from glass reflections on observation.

[0018] 3. By using a light path switching component to convert the axial focused light emitted by the flashlight into radial scattered light, a light shield is placed on the side of the flashlight closest to the user. The unopened side wall of the light shield is placed between the scattered light source and the user's eyes, which physically blocks the scattered light towards the user. This achieves diffused illumination of the target area and reduces the light flux in the user's eye area. This helps to reduce stray light interference in the field of vision when breaking windows at close range, and maintains the operator's visual recognition ability of the window breaking point and the surrounding environment. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, for those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a schematic diagram of the overall structure of the puncture site in the first position according to an embodiment of this application; Figure 2 This is an overall schematic diagram of the puncture site in the second position according to an embodiment of this application; Figure 3 This is an embodiment of the present application. Figure 2 A top-view diagram; Figure 4 This is an embodiment of the present application. Figure 3 A schematic diagram of the AA cross-sectional structure; Figure 5 This is an embodiment of the present application. Figure 4 A magnified structural diagram at point B; Figure 6 This is a schematic diagram of the overall structure of the optical path switching component according to an embodiment of this application.

[0021] In the diagram: 1. Housing; 101. Threaded groove; 102. Rotating shaft; 103. Limiting protrusion; 2. Battery compartment; 3. Light source module; 4. Puncture part; 41. Slide rail; 42. Threaded protrusion; 5. Connecting mechanism; 51. Rotating part; 52. Straight rod part; 521. Straight rod; 522. Hollow rod; 6. Slider; 7. Light path switching assembly; 71. Laminated glass; 72. Injection part; 711. Cavity; 721. Sealed cavity; 722. Piston rod; 73. Connecting channel; 8. Light shield; 81. Limiting groove; 82. Light outlet. Detailed Implementation

[0022] 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, and 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.

[0023] Please refer to Figures 1 to 6 A portable lighting device with a window-breaking function includes: a housing 1, and a battery compartment 2 is provided on the inner side of the housing 1; Light source module 3: A light source module 3 is fixed at one end of the housing 1 away from the battery compartment 2. The light source module 3 is used to generate an illumination beam. A piercing part 4 is movably installed at one end of the housing 1 near the battery compartment 2. The piercing part 4 is used to break the glass. A connecting mechanism 5 is provided between the housing 1 and the puncture part 4. The movable connecting mechanism 5 enables the light source module 3 to switch between a first position and a second position relative to the housing 1. The puncture part 4 is located in the first position. The puncture part 4 is fixedly installed at the end of the housing 1 and is coaxial with the housing 1. The puncture section 4 is located in the second position, and the central axis of the housing 1 is set at an angle to the central axis of the puncture section 4.

[0024] When in use, when the puncture part 4 is in the first position, the central axis of the housing 1 coincides with the central axis of the puncture part 4, and the two are coaxially arranged. The puncture part 4 and the housing 1 are cylindrical in shape, so that the operator can hold and store the flashlight when it is in the first position.

[0025] When it is necessary to break the window, the piercing part 4 is switched from the first position to the second position. During this switching process, the connecting mechanism 5 guides the piercing part 4 to undergo spatial displacement relative to the housing 1, so that the central axis of the piercing part 4 is not collinear with the central axis of the housing 1, and the central axis of the piercing part 4 forms a 90-degree angle with the central axis of the housing 1. At this time, the end of the piercing part 4 is placed against the outside of the glass to be broken, and the piercing part 4 is pushed towards the side closer to the glass, so that the force stored in the piercing part 4 is released at the moment of contact with the glass, thereby breaking the glass. The 90-degree angle between the piercing part 4 and the housing 1 ensures that the light source module is not directly facing the glass, thereby reducing the possibility of the light source module being scratched by glass shards.

[0026] Meanwhile, the puncture part 4 and the housing 1 are not coaxially arranged, so that when the puncture part 4 punctures the glass, the reaction force generated by the puncture part 4 is transmitted along the puncture part 4 to the connecting mechanism 5, and then transmitted to the housing 1 by the connecting mechanism 5. This force transmission path is carried by the external structure of the housing 1. As a result, the impact load borne by the battery compartment 2 and its internal cells during the window breaking process is at a low level, which helps to maintain the structural integrity and electrical safety of the battery.

[0027] Please refer to Figures 1 to 3 The connecting mechanism 5 includes a rotating part 51 and a straight rod part 52. The rotating part 51 is fixed to the side wall of the housing 1, and one end of the straight rod part 52 is rotatably connected to the rotating part 51, while the other end of the straight rod part 52 is fixedly connected to the puncture part 4.

[0028] In use, when the puncture section 4 needs to switch from the first position to the second position, the operator applies external force to the puncture section 4, causing the straight rod section 52 to rotate around the axis of the rotating section 51. During rotation, the straight rod section 52 guides the puncture section 4 along an arc-shaped trajectory, causing the puncture section 4 to deflect at an angle as it disengages from the end of the housing 1. When the straight rod section 52 rotates to a preset angle, a 90-degree angle is formed between the central axis of the puncture section 4 and the central axis of the housing 1. In this state, when the operator holds the housing 1 and applies force towards the glass, the striking force is transmitted sequentially to the side wall of the housing 1 through the puncture section 4, the straight rod section 52, and the rotating section 51. The force transmission path is clear and does not pass through the area where the battery compartment 2 is located. After breaking the window, the operator pushes the puncture section 4 in the opposite direction, causing the straight rod section 52 to rotate around the rotating section 51, driving the puncture section 4 back to the first position and restoring its coaxial fixed state with the housing 1.

[0029] Please refer to Figures 3 to 4 The puncture part 4 is fixed with a threaded protrusion 42 at one end near the housing 1, and the housing 1 is fixed with a threaded groove 101 that matches the threaded protrusion 42 at one end near the puncture part 4.

[0030] In use, when the puncture part 4 is in the first position, the threaded protrusion 42 screws into the threaded groove 101, and the puncture part 4 and the housing 1 are axially fixed through the threaded engagement, so that the puncture part 4 remains stationary relative to the housing 1 in the handheld and storage state, and will not loosen due to external vibration or slight touch. When it is necessary to switch to the second position, the operator rotates the puncture part 4, the threaded protrusion 42 unscrews from the threaded groove 101, the threaded constraint between the puncture part 4 and the housing 1 is released, and the puncture part 4 can be deflected relative to the housing 1 under the guidance of the connecting mechanism 5. After breaking the window, the operator returns the puncture part 4 to the first position and rotates it in the opposite direction, the threaded protrusion 42 screws back into the threaded groove 101, and the puncture part 4 and the housing 1 are fixedly connected again.

[0031] Please refer to Figures 1 to 2 A slide rail 41 is fixed to the outside of the puncture part 4, and at least one slider 6 is slidably provided on the outside of the slide rail 41. The straight rod part 52 is fixedly connected to the slider 6.

[0032] Multiple sliders 6 are symmetrically arranged about the vertical center plane of the rotating part 51. When it is necessary to switch the position of the puncture part 4, the operator first removes the puncture part 4 from the housing 1. At this time, the puncture part 4 is rotated to disengage the threaded fit between the puncture part 4 and the housing 1. During the rotation, the puncture part 4 rotates relative to the straight rod part 52, the slide rail 41 rotates synchronously with the puncture part 4, and the sliders 6 slide along the slide rail 41, converting the rotational motion of the puncture part 4 into the linear displacement of the sliders 6 along the slide rail 41. The cooperation between the slide rail 41 and the sliders 6 provides motion guidance for the puncture part 4 when it rotates away from the housing 1, so that the rotational motion of the puncture part 4 and the relative stationary state of the straight rod part 52 are coordinated, reducing the possibility of mechanical interference between the two during the switching process. After the puncture part 4 is completely separated from the housing 1, the operator deflects the puncture part 4 to the second position by rotating the straight rod part 52 around the rotating part 51.

[0033] Please refer to Figures 1 to 2 The straight rod portion 52 includes a straight rod 521 and a hollow rod 522. One end of the straight rod 521 is fixedly connected to the slider 6, and the other end of the straight rod 521 is slidably connected to the hollow rod 522. The end of the hollow rod 522 away from the straight rod 521 is rotatably connected to the rotating portion 51.

[0034] The rotating shaft 102 is inserted into the through hole on the hollow rod 522, forming a rotational fit between the hollow rod 522 and the rotating shaft 102. When the puncture part 4 switches between the first and second positions, the hollow rod 522 rotates around the rotating shaft 102, causing the straight rod 521 and the puncture part 4 to deflect synchronously. When it is necessary to adjust the distance between the puncture part 4 and the housing 1, the operator pushes and pulls the puncture part 4 axially, and the straight rod 521 slides and extends within the hollow rod 522, changing the radial distance of the puncture part 4 relative to the rotating part 51. The sliding fit between the straight rod 521 and the hollow rod 522 makes the total length of the connecting mechanism 5 adjustable to accommodate different thicknesses of car window glass or different operator habits. After adjustment, the straight rod 521 and the hollow rod 522 maintain their current length through friction or positioning structure. The reaction force generated when the piercing part 4 is fired is transmitted through the straight rod 521 to the hollow rod 522, and then from the hollow rod 522 to the rotating shaft 102 and the side wall of the housing 1.

[0035] Please refer to Figures 4 to 6 A light path switching component 7 is slidably disposed on the outer side of the light source module 3.

[0036] When the puncture section 4 is in the first position, the light path switching component 7 is housed outside the light source module 3, and the illumination beam emitted by the light source module 3 is emitted forward along the axial direction without obstruction, providing the operator with long-distance search and positioning illumination. When the puncture section 4 is switched to the second position and the housing 1 is parallel to the glass surface, the light emission direction of the light source module 3 becomes parallel to the glass surface, and it cannot directly illuminate the broken window area in front of the operator. At this time, the operator slides the light path switching component 7 from the housed position to the working position. The light path switching component 7 enters the light path of the light source module 3, modulates the illumination beam, and converts the axial emitted light into lateral or radial emitted light, so that the operator can still obtain effective illumination during the window breaking process.

[0037] Please refer to Figures 4 to 5 The optical path switching component 7 includes a laminated glass 71 and an injection component 72. The front end of the light source module 3 is fixed with the laminated glass 71, and a cavity 711 is opened on the inner side of the laminated glass 71. The side wall of the housing 1 is fixed with the injection component 72. A connecting channel 73 is fixed between the injection component 72 and the cavity 711. The injection component 72 and the cavity 711 form a communication channel through the connecting channel 73.

[0038] In use, the injection unit 72 is filled with a milky white mixed liquid. Under normal lighting conditions, the cavity 711 is not filled with liquid medium. When the light beam emitted by the light source module 3 passes through the laminated glass 71, it only undergoes refraction by the air and glass media, and the light beam maintains its original focusing characteristics and is emitted forward. When radially scattered light is required, the operator presses the injection unit 72, and the milky white mixed liquid filled in the injection unit 72 enters the cavity 711 inside the laminated glass 71 through the connecting channel 73 under pressure. When the light beam passes through the liquid-filled cavity 711, the light is scattered by the suspended particles in the liquid, producing the Tyndall effect. The emitted light changes from axial focusing to radially scattered light, and the flashlight changes from a point light source to a columnar light source.

[0039] In some embodiments, to increase the thickness of the cavity 711, the thickness of the cavity 711 between the laminated glass 71 can be set to be adjustable. When illumination is needed, the thickness of the cavity 711 is increased to make the radially scattered light more sufficient, while when not in use, the thickness of the cavity 711 is reduced, and the light beam only passes through the thin residual medium or directly through the two laminated glass, the light path is restored to the original focusing state, and the flashlight restores its long-distance search illumination capability.

[0040] The laminated glass 71 consists of a fixed glass and a movable glass. The outer edge of the movable glass is in a sealing sliding fit with the inner wall of the cavity 711. The movable glass is fixedly connected to the injection component 72. When the injection component 72 is pressed into the cavity 711 to inject liquid, it simultaneously pushes the movable glass outward, increasing the distance between the two glass panes.

[0041] Please refer to Figure 4The projected area of ​​the light-incident surface of cavity 711 in the direction perpendicular to the optical axis is not less than the projected area of ​​the light-emitting surface of light source module 3 in the direction perpendicular to the optical axis.

[0042] When the beam emitted from the light source module 3 reaches the light-incident surface of the cavity 711, its cross-section is covered by the light-incident surface of the cavity 711. All the light rays in the beam can enter the milky white mixed liquid inside the cavity 711 to participate in scattering, thus maintaining the light energy utilization rate of the light source module 3. There is a corresponding relationship between the brightness of the radially scattered light and the output luminous flux of the light source module 3.

[0043] Please refer to Figure 1 , Figures 4 to 6 A light shield 8 is slidably provided on the outer wall of the housing 1, and a limiting groove 81 is provided on the inner wall of the light shield 8. A limiting protrusion 103 adapted to the limiting groove 81 is fixed on the outer wall of the housing 1. A light outlet 82 is provided through the side wall of the light shield 8, and the light outlet 82 is on the same side as the puncture part 4 when it is in the second position.

[0044] In its non-use state, the light shield 8 is slidably mounted coaxially with the housing 1, and the limiting protrusion 103 is embedded in the limiting groove 81. Limited by the sidewall of the limiting protrusion 103, the light shield 8 can only slide along the axial direction of the housing 1 and will not rotate circumferentially relative to the housing 1. When radially scattered light is required, the operator pushes the light shield 8 along the axial direction of the housing 1, sliding it from the retracted position to the unfolded position to block or guide the scattered light, thereby controlling the angle range and distribution area of ​​the radially emitted light.

[0045] When the puncture unit 4 is switched to the second position and the housing 1 is parallel to the glass surface, the light emission direction of the light source module 3 is parallel to the firing direction of the puncture unit 4. At this time, the operator slides the light shield 8 along the axial direction of the housing 1 to the working position. The light shield 8 covers the outside of the light source module 3, and the illumination beam emitted by the light source module 3 is blocked by the peripheral wall of the light shield 8, only emitting light from the light outlet 82 on the side wall. Since the light outlet 82 and the puncture unit 4 are located on the same side, the irradiation area of ​​the emitted beam coincides with the firing target area of ​​the puncture unit 4. During the window breaking process, the operator can observe the glass condition at the window breaking point and the water level outside the window through the directional beam emitted from the light outlet 82. The unopened side wall of the light shield 8 blocks light from other directions emitted by the light source module 3, reducing the proportion of light scattered towards the operator's eyes, thus reducing stray light interference in the operator's field of vision when performing close-range window breaking operations.

[0046] Please refer to Figures 4 to 6 The injection component 72 includes a sealing cavity 721 and a piston rod 722. A sealing cavity 721 parallel to the central axis of the housing 1 is fixed on one side of the housing 1, and a movable rod is slidably fitted inside the sealing cavity 721. The two ends of the connecting channel 73 are connected to the cavity 711 and the sealing cavity 721 respectively.

[0047] In use, under normal lighting conditions, the piston rod 722 is in its initial position within the sealed cavity 721, where the milky white mixed liquid is stored. When liquid needs to be injected into the cavity 711, the operator presses the piston rod 722, causing it to slide along the inner wall of the sealed cavity 721. The liquid in the sealed cavity 721 enters the cavity 711 through the connecting channel 73 under the push of the piston rod 722. When liquid needs to be withdrawn from the cavity 711, the operator pulls the piston rod 722 in the opposite direction, creating a negative pressure within the sealed cavity 721. The liquid in the cavity 711 flows back into the sealed cavity 721 through the connecting channel 73. The sealing and sliding fit between the piston rod 722 and the sealed cavity 721 ensures that the liquid does not come into contact with the external environment during injection and withdrawal, and the liquid in the cavity 711 can be reused.

[0048] In the description of this specification, the references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0049] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this application. Various changes and modifications can be made to this application without departing from the spirit and scope thereof, and all such changes and modifications fall within the scope of the claims of this application.

Claims

1. A portable lighting device with a window-breaking function, characterized in that, include: The housing (1) has a battery compartment (2) on its inner side; The light source module (3) is fixed at one end of the housing (1) away from the battery compartment (2). The light source module (3) is used to generate an illumination beam. A piercing part (4) is movably installed at one end of the housing (1) near the battery compartment (2), and the piercing part (4) is used to break the glass; A connecting mechanism (5) is provided between the housing (1) and the puncture part (4), and the movable connecting mechanism (5) enables the light source module (3) to switch between a first position and a second position relative to the housing (1); The puncture part (4) is located at the first position. The puncture part (4) is fixedly installed at the end of the housing (1) and the puncture part (4) is coaxially arranged with the housing (1). The puncture part (4) is located in the second position, and the central axis of the housing (1) is set at an angle to the central axis of the puncture part (4).

2. A portable lighting device with window-breaking function according to claim 1, characterized in that, The connecting mechanism (5) includes a rotating part (51) and a straight rod part (52). The rotating part (51) is fixed to the side wall of the housing (1), and one end of the straight rod part (52) is rotatably connected to the rotating part (51), and the other end of the straight rod part (52) is fixedly connected to the puncture part (4).

3. A portable lighting device with window-breaking function according to claim 2, characterized in that, The puncture part (4) is fixed with a threaded protrusion (42) at one end near the housing (1), and the housing (1) is fixed with a threaded groove (101) that matches the threaded protrusion (42) at one end near the puncture part (4).

4. A portable lighting device with window-breaking function according to claim 3, characterized in that, The puncture part (4) is fixed with a slide rail (41) on the outside, and at least one slider (6) is slidably provided on the outside of the slide rail (41), and the straight rod part (52) is fixedly connected to the slider (6).

5. A portable lighting device with window-breaking function according to claim 4, characterized in that, The straight rod part (52) includes a straight rod (521) and a hollow rod (522). One end of the straight rod (521) is fixedly connected to the slider (6), and the other end of the straight rod (521) is slidably connected to the hollow rod (522). The end of the hollow rod (522) away from the straight rod (521) is rotatably connected to the rotating part (51).

6. A portable lighting device with window-breaking function according to claim 1, characterized in that, The light source module (3) is slidably provided with a light path switching component (7) on its outer side.

7. A portable lighting device with window-breaking function according to claim 6, characterized in that, The optical path switching component (7) includes a laminated glass (71) and an injection component (72). The front end of the light source module (3) is fixed with the laminated glass (71), and a cavity (711) is opened on the inner side of the laminated glass (71). The side wall of the housing (1) is fixed with the injection component (72). A connecting channel (73) is fixed between the injection component (72) and the cavity (711). The injection component (72) and the cavity (711) are connected by the connecting channel (73).

8. A portable lighting device with window-breaking function according to claim 7, characterized in that, The projected area of ​​the light-incident surface of the cavity (711) in the direction perpendicular to the optical axis is not less than the projected area of ​​the light-emitting surface of the light source module (3) in the direction perpendicular to the optical axis.

9. A portable lighting device with window-breaking function according to claim 8, characterized in that, A light shield (8) is slidably provided on the outer wall of the housing (1), and a limiting groove (81) is provided on the inner wall of the light shield (8), and a limiting protrusion (103) adapted to the limiting groove (81) is fixed on the outer wall of the housing (1). A light outlet (82) penetrating the light shield (8) is provided on the side wall of the light shield (8), and the light outlet (82) is on the same side as the puncture part (4) when it is in the second position.

10. A portable lighting device with window-breaking function according to claim 7, characterized in that, The injection component (72) includes a sealing cavity (721) and a piston rod (722). A sealing cavity (721) parallel to the central axis of the housing (1) is fixed on one side of the housing (1). A movable rod is slidably fitted inside the sealing cavity (721). The two ends of the connecting channel (73) are connected to the cavity (711) and the sealing cavity (721) respectively.

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