A light source adjustable explosion-proof flashlight

Abstract

The application relates to an explosion-proof flashlight with adjustable light source, belonging to the technical field of mobile lighting, which comprises a holding part, a mounting part fixed to one end of the holding part, a lamp cover detachably sleeved on the outer periphery of the end of the mounting part away from the holding part, a mobile power supply arranged in the holding part, a control button for controlling the mobile power supply fixed to the outer periphery of the holding part, a supporting plate arranged in the mounting part, a light source fixed to the side of the supporting plate facing the lamp cover, a condenser lens fixed to the lamp cover, and an adjusting part arranged on the outer periphery of the mounting part and used for driving the supporting plate to reciprocate along the direction close to the condenser lens. In the application, the adjusting part is arranged on the outer periphery of the mounting part, and the supporting plate, the light source and the condenser lens are cooperatively designed. The staff can directly drive the supporting plate to reciprocate through the adjusting part, flexibly adjust the distance between the light source and the condenser lens, and accurately adjust the light intensity and the brightness of the light source. The application does not need to additionally prepare multiple accessories, and the operation is convenient and efficient.

Description

Technical Field

[0001] This application relates to the technical field of mobile lighting, and in particular to an explosion-proof flashlight with adjustable light source. Background Technology

[0002] Explosion-proof flashlights, as core lighting equipment in special work scenarios, are widely used in fields with flammable and explosive risks, such as chemical plants, mines, and oil and gas extraction. Their lighting stability, ease of operation, and functional adaptability directly affect work safety and efficiency. The core design of such equipment must balance explosion protection, ease of handling, and stable power supply. The conventional structure includes two main parts: the lamp tube and the lamp cover. The lamp tube integrates the core lighting and power supply components, while the lamp cover provides protection and light transmission. At the same time, the structural design must enable convenient opening and closing control to meet the needs of rapid on-site operation.

[0003] In the mainstream structure of existing explosion-proof flashlights, the lamp tube is divided into two functional sections: a grip section and a mounting section. The lamp cover is threaded onto the outer periphery of the mounting section, which houses the lighting source. The grip section contains a built-in portable power supply that powers the lamp source, and a control button linked to the portable power supply is fixed on its outer periphery. A transparent lens is fixed to the surface of the lamp cover to achieve light transmission protection. In practical applications, the user holds the grip section and presses the control button to turn the light source on and off. The overall structure is simple, the operation is straightforward, and it basically meets the needs of conventional explosion-proof lighting.

[0004] Existing explosion-proof flashlights face varying brightness requirements in different work scenarios during practical use. For example, low brightness is needed for close-range maintenance, while high brightness is needed for long-distance inspection. However, these devices lack direct brightness adjustment functionality. To adapt to different brightness requirements, the only solution is to replace the lens with one of different light transmission thickness or the light source with one of different wattage. This adjustment method is cumbersome, requires the preparation of various accessories in advance, and frequent accessory replacements increase operating costs, indicating room for improvement. Summary of the Invention

[0005] The purpose of this application is to provide an explosion-proof flashlight with an adjustable light source, which solves the problems of explosion-proof flashlights in the above-mentioned related technologies that do not have a direct brightness adjustment function, require replacement of lenses or light sources, and are cumbersome and costly to operate.

[0006] The explosion-proof flashlight with adjustable light source provided in this application adopts the following technical solution: An explosion-proof flashlight with adjustable light source includes a grip and a mounting part fixed to one end of the grip. A lamp cover is detachably fitted on the outer periphery of the end of the mounting part away from the grip. A power supply is provided inside the grip, and a control button for controlling the power supply is fixed on its outer periphery. A support plate is installed inside the mounting part, and a light source is fixed on the side of the support plate facing the lamp cover. A condenser lens is fixed on the lamp cover, and an adjustment component is provided on the outer periphery of the mounting part to drive the support plate to reciprocate along the direction close to the condenser lens.

[0007] By adopting the above technical solution, an adjustment component is set on the outer periphery of the installation part. With the coordinated design of the support plate, light source and condenser lens, the operator can directly drive the support plate to move back and forth through the adjustment component, thereby flexibly adjusting the distance between the light source and the condenser lens, and achieving precise adjustment of the light source concentration and brightness. There is no need to prepare multiple accessories, and the operation is convenient and efficient. This reduces the cost of frequent replacement of accessories and also reduces the complexity of operation.

[0008] Optionally, a first thread is provided on the outer periphery of the mounting part, and the adjusting component includes an adjusting sleeve sleeved on the outer periphery of the mounting part; a second thread that mates with the first thread is provided on the inner wall of the adjusting sleeve, and a clearance groove is provided on the inner wall of the lamp cover for the adjusting sleeve to be inserted away from the edge of the gripping part; an adjusting protrusion is fixed on the outer periphery of the end of the adjusting sleeve near the gripping part; a guide block is fixed on the outer periphery of the support plate, and a third thread that mates with the second thread is provided on the outer surface of the guide block; a guide notch is provided on the outer periphery of the mounting part along its own axial direction for the guide block to be inserted.

[0009] By adopting the above technical solution, the adjusting sleeve and the mounting part are engaged by the first and second threads, and with the adjustment cam, the operator can easily move the cam to rotate the sleeve. The guide block engages with the third thread and the guide notch to restrict the rotation of the support plate to only axial movement, ensuring smooth adjustment. The recessed groove avoids interference between the adjusting sleeve and the lamp cover. The overall structure is compact and requires no additional parts. This improves the adjustment accuracy and ensures the structural stability of the explosion-proof flashlight, making it suitable for the brightness adjustment needs of various special operations and highly practical.

[0010] Optionally, a fixing plate is fixedly provided on the outer periphery of the end of the gripping part away from the mounting part. Two connecting plates are rotatably mounted on the side of the fixing plate away from the mounting part. The rotating surface of the connecting plate is parallel to the end face of the gripping part. A traction rod parallel to the gripping part is fixedly provided perpendicularly on the end of the connecting plate away from the fixing plate in the direction close to the lamp cover. The two traction rods can rotate with the connecting plate in the direction away from the gripping part to a gripping state where they are side by side and abutting each other, and in the direction close to the gripping part to a storage state where they are side by side and abutting each other. A locking member is provided on the outer periphery of the gripping part to limit the movement of the traction rods in the gripping and storage states.

[0011] By adopting the above technical solution, the two connecting plates can rotate flexibly around the fixed plate, driving the traction rods to switch between gripping and storage states. In the gripping state, the two traction rods abut side by side, improving handheld comfort and stability; in the storage state, they fit snugly against the gripping part, significantly reducing the size of the device and making it easy to carry and store. The locking mechanism can precisely limit the position in both states, preventing loosening during use or storage. The overall structure is simple and easy to operate, without affecting the flashlight's original explosion-proof and dimming functions, further enhancing the device's practicality and adaptability to various scenarios.

[0012] Optionally, the locking component includes a locking ring sleeved on the outer periphery of the grip portion, the locking ring being rotatable about the axis of the grip portion and sliding along the axis of the grip portion; a locking protrusion is fixedly provided on the outer periphery of the locking ring, and two locking blocks are fixedly provided on the side of the locking protrusion away from the lamp cover; a first slot is provided on the side of the connecting plate facing the lamp cover, and a second slot is provided on the end face of the traction rod away from the connecting plate; the locking blocks can be inserted into the first slot when the two traction rods are in the gripped state, and can be inserted into the second slot when the two traction rods are in the retracted state, along with the movement of the locking ring.

[0013] By adopting the above technical solution, the locking ring can rotate and slide flexibly, and the locking protrusion facilitates operation by the staff. The two locking blocks precisely correspond to the first and second slots. When the traction rod is in the gripping or retracted state, pushing the locking ring will cause the locking blocks to engage with the corresponding slots, quickly completing the limiting operation. This structure provides reliable limiting, effectively preventing the traction rod from shifting or loosening during operation or retraction. It also has good compatibility with the traction rod and connecting plate, does not occupy extra space, does not affect the explosion-proof performance of the equipment or the overall ease of operation, and further enhances the user experience.

[0014] Optionally, the outer periphery of the locking block is provided with an elastic snap-fit ​​member, and the inner walls of the first slot and the second slot are both provided with positioning grooves for the elastic snap-fit ​​member to snap into.

[0015] By adopting the above technical solution, after the locking block is embedded in the slot, the elastic snap-fit ​​component engages with the positioning groove, preventing the locking block from accidentally dislodging and avoiding loosening of the traction rod. Its structure is simple, does not increase operational difficulty, is suitable for explosion-proof operating scenarios, balances limit stability and ease of operation, and further optimizes the reliability of equipment use.

[0016] Optionally, the elastic snap-fit ​​component includes a compression spring and an arc-shaped protrusion. The locking block has a placement groove for the compression spring and the arc-shaped protrusion to be inserted. The compression spring presses one side of the arc-shaped protrusion, causing a part of the arc-shaped protrusion to protrude from the opening of the placement groove. The outer surface of the protruding part of the arc-shaped protrusion is an arc surface, and the arc length corresponding to this arc surface is a minor arc.

[0017] By adopting the above technical solution, the compression spring continuously presses against the arc-shaped protrusion, ensuring its stable engagement in the positioning groove and preventing loosening. The inferior arc surface design allows the locking block to smoothly insert and disengage from the slot without jamming, making operation easier. The overall structure is compact, compatible with the locking block, does not affect the explosion-proof performance of the equipment, and further enhances the practicality of the limit structure.

[0018] Optionally, the connecting plate has an installation notch along its length on the side facing the traction rod, which communicates with the first slot. The traction rod has a receiving notch on its outer periphery facing the connecting plate, which communicates with the installation notch, and a control component located within the receiving notch. A limiting rod is slidably disposed within the installation notch, and an elastic pressing component is provided to drive the limiting rod to slide away from the first slot. When the locking block is inserted into the first slot, a limiting slot is formed on the side facing the installation notch. When the locking block is inserted into the first slot, the control component is used to drive one end of the limiting rod to be inserted into the limiting slot.

[0019] By adopting the above technical solution, after the locking block is embedded in the first slot, the control component can drive the limit rod to insert into the limit slot. Combined with the reset effect of the elastic pressing component, the double limit prevents the locking block from loosening. The design of the installation notch and the receiving notch makes the layout of each component compact, without occupying extra space, making operation convenient and not affecting the original function of the equipment. It is suitable for explosion-proof operation scenarios and further ensures the safety and reliability of handheld operation.

[0020] Optionally, the elastic compression member includes a first spring in a compressed state and a protruding plate fixed on the outer periphery of the limiting rod. The inner wall of the mounting notch is provided with a mounting groove for the protruding plate to be inserted and slid. The first spring is located on the side of the protruding plate facing the first slot, and the two ends of the first spring are fixedly connected to the inner wall of the mounting groove and the protruding plate, respectively.

[0021] By adopting the above technical solution, the first spring in a compressed state applies a continuous force to the limiting rod through the protruding plate. After the control component is released, it can quickly drive the limiting rod out of the limiting slot, and the reset is smooth. The mounting groove guides and limits the protruding plate, preventing the limiting rod from shifting or getting stuck. The overall structure is compact and fits the installation gap, does not affect the overall layout and explosion-proof performance of the equipment, and is easy to operate, further optimizing the practicality and reliability of the secondary limiting structure.

[0022] Optionally, the control component includes an elastic control plate with one end rotatably connected to the receiving notch toward the inner wall of the lamp cover, the elastic control plate having elastic elongation properties; when the two traction rods are in the gripping state, the elastic control plate rotates into the mounting notch and is located below one end of the gripping part away from the limiting rod.

[0023] By adopting the above technical solution, the flexible control plate can rotate flexibly, and when held, it can be rotated into the installation notch and press against the limit rod, ensuring its stable insertion into the limit slot and guaranteeing reliable secondary limiting. Its elastic elongation performance adapts to the installation gap, making operation convenient, not occupying extra space, and not affecting the equipment's explosion-proof design or overall operation, further enhancing the adaptability and practicality of the secondary limiting mechanism.

[0024] Optionally, the elastic control plate has a control slot on its outer surface when it is in the receiving notch; when the two traction rods are in the gripping state, they can rotate to a mutually inclined support state, and the side of the two traction rods away from the gripping part can simultaneously abut against the ground; when the two traction rods are in the support state, the elastic control plate rotates out from the mounting notch to a limit state perpendicular to the traction rods, and the two locking blocks can be inserted into the two control slots respectively as the locking ring moves.

[0025] By adopting the above technical solution, the application scenarios of the flashlight are expanded, achieving a balance between handheld, stored, and ground-supported lighting, adapting to diverse needs in special operations. The control slot, in conjunction with the flexible control plate and locking block, allows the pull rod to switch to an inclined support state, where the side furthest from the grip rests against the ground to form stable support, achieving horizontal lighting without manual handling. Operation is convenient, switching is smooth, and the locking block, embedded in the control slot, provides precise positioning, ensuring stable support. The compact structure does not compromise explosion-proof performance, further enhancing the equipment's practicality and ease of operation.

[0026] In summary, this application includes the following beneficial technical effects: In this application, an adjustment component is set on the outer periphery of the installation section. With the coordinated design of the support plate, light source and condenser lens, the operator can directly drive the support plate to move back and forth through the adjustment component, thereby flexibly adjusting the distance between the light source and the condenser lens, and achieving precise adjustment of the light source concentration and brightness. There is no need to prepare multiple accessories, and the operation is convenient and efficient. This reduces the usage cost caused by frequent replacement of accessories and also reduces the cumbersomeness of operation. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of Embodiment 1 of this application; Figure 2 This is an exploded structural diagram illustrating the installation distribution of the lamp cover and mounting part in Embodiment 1 of this application; Figure 3 This is a partial cross-sectional view of Embodiment 1 of this application, illustrating the installation and fit between the lamp cover and the mounting part; Figure 4 This is a schematic diagram of the overall structure of Embodiment 2 of this application; Figure 5 This is a schematic diagram illustrating the installation and cooperation of the traction component and the locking component in Embodiment 2 of this application; Figure 6 This is a partial cross-sectional view of Embodiment 2 of this application illustrating the installation and assembly of the traction component; Figure 7 yes Figure 6 An enlarged schematic diagram of part A in the middle; Figure 8 This is an exploded structural diagram illustrating the installation distribution of the control components and limiting components in Embodiment 2 of this application; Figure 9 This is a partial cross-sectional view of Embodiment 2 of this application illustrating the installation and fit of the limiting rod; Figure 10 yes Figure 9 Enlarged schematic diagram of part B; Figure 11 This is a schematic diagram illustrating the installation and assembly of the flexible control board in Embodiment 2 of this application; Figure 12 This is a partial cross-sectional view of the installation and assembly of the flexible control plate in Embodiment 2 of this application.

[0028] In the diagram, 1. Mounting part; 11. Support plate; 111. Guide block; 12. Light source; 13. Guide notch; 2. Grip part; 21. Control button; 22. Fixing plate; 3. Lamp cover; 31. Condensing lens; 32. Clearance groove; 4. Adjusting component; 41. Adjusting sleeve; 42. Adjusting convex plate; 5. Traction component; 51. Connecting plate; 511. First slot; 512. Mounting notch; 5121. Mounting groove; 52. Traction rod; 521. 522. Positioning groove; 523. Accommodating notch; 6. Locking component; 61. Locking ring; 62. Locking protrusion; 63. Locking insert; 631. Placement slot; 632. Limiting slot; 64. Elastic snap-fit ​​component; 641. Compression spring; 642. Arc-shaped protrusion; 7. Control component; 71. Elastic control plate; 711. Control slot; 8. Limiting component; 81. Limiting rod; 82. Elastic pressing component; 821. First spring; 822. Protrusion plate. Detailed Implementation

[0029] The present application will be further described in detail below with reference to all the accompanying drawings. Example

[0030] Reference Figure 1 , Figure 2 and Figure 3 An explosion-proof flashlight with adjustable light source includes a grip 2 and a mounting part 1 integrally formed at one end of the grip 2. A lamp cover 3 is threaded on the outer periphery of the end of the mounting part 1 away from the grip 2. A mobile power supply (not shown in the figure) is provided inside the grip 2, and a control button 21 for controlling the mobile power supply is fixed on the outer periphery. A support plate 11 is installed inside the mounting part 1. A light source 12 is fixed on the side of the support plate 11 facing the lamp cover 3. A condenser lens 31 is fixed on the lamp cover 3. An adjustment member 4 is provided on the outer periphery of the mounting part 1 to drive the support plate 11 to move back and forth in the direction close to the condenser lens 31. When it is necessary to adjust the focusing degree of the light source, the operator can control the adjusting component 4 to drive the mounting part 1 to slide back and forth, thereby controlling the distance between the light source 12 and the focusing lens 31, and finally realizing the adjustment and control of the focusing degree of the light source.

[0031] Reference Figure 2 and Figure 3 The mounting part 1 has a first thread on its outer periphery. The adjusting part 4 includes an adjusting sleeve 41 sleeved on the outer periphery of the mounting part 1. The inner wall of the adjusting sleeve 41 has a second thread that mates with the first thread. The inner wall of the lamp cover 3 has a recessed groove 32 for the adjusting sleeve 41 to be inserted away from the edge of the gripping part 2. An adjusting protrusion 42 is integrally formed on the outer periphery of the end of the adjusting sleeve 41 near the gripping part 2. A guide block 111 is fixed on the outer periphery of the support plate 11. A third thread that mates with the second thread is provided on the outer side of the guide block 111. A guide notch 13 for inserting the guide block 111 is provided on the outer periphery of the mounting part 1 along its own axis.

[0032] The implementation principle of this application embodiment is as follows: The staff manually moves the adjusting convex plate 42 to drive the adjusting sleeve 41 to rotate. Due to the threaded engagement between the guide block 111 and the adjusting sleeve 41, the support plate 11 slides back and forth along the length of the guide notch 13, thereby realizing the adjustment and control of the distance between the lamp source 12 and the condenser lens 31. Example

[0033] Reference Figure 4 and Figure 5 The difference between this embodiment and Embodiment 1 is that a fixing plate 22 is fixedly provided on the outer periphery of the end of the gripping part 2 away from the mounting part 1, a traction member 5 is provided on the outside of the fixing plate 22, and a locking member 6 is provided on the outer periphery of the gripping part 2; wherein the traction member 5 includes two connecting plates 51 rotatably mounted on the side of the fixing plate 22 away from the mounting part 1, the rotating surface of the connecting plate 51 is parallel to the end face of the gripping part 2, and a traction rod 52 parallel to the gripping part 2 is fixedly provided on the end of the connecting plate 51 away from the fixing plate 22 along the direction close to the lamp cover 3; When the flashlight is used for illumination, the two pull rods 52 are rotated along the connecting plate 51 in a direction away from the grip part 2 to a side-by-side gripping state, and the locking member 6 is used to limit this state. At this time, the operator can directly hold the two pull rods 52 on the outer periphery. When the flashlight is stored, the two pull rods 52 are rotated along the connecting plate 51 in a direction close to the grip part 2 to a side-by-side storage state, and the locking member 6 is used to limit this state, reducing the overall volume of the flashlight at this time and improving the space utilization rate when storing.

[0034] Reference Figure 6 and Figure 7 The locking component 6 includes a locking ring 61 sleeved on the outer periphery of the grip portion 2. The locking ring 61 can rotate around the axis of the grip portion 2 and slide along the axis of the grip portion 2. A locking protrusion 62 is fixed on the outer periphery of the locking ring 61. Two locking blocks 63 are fixed on the side of the locking protrusion 62 away from the lamp cover 3. The outer periphery of the locking plug 63 is provided with an elastic snap-fit ​​member 64. The side of the connecting plate 51 facing the lamp cover 3 is provided with a first slot 511. The end face of the traction rod 52 away from the connecting plate 51 is provided with a second slot 521. The inner walls of the first slot 511 and the second slot 521 are provided with positioning grooves 522 for the elastic snap-fit ​​member 64 to be snapped into. The elastic snap-fit ​​component 64 includes a compression spring 641 and an arc-shaped protrusion 642. The locking insert 63 has a placement groove 631 for the compression spring 641 and the arc-shaped protrusion 642 to be inserted. The compression spring 641 presses one side of the arc-shaped protrusion 642 so that a part of the arc-shaped protrusion 642 protrudes from the opening of the placement groove 631. The outer surface of the protruding part of the arc-shaped protrusion 642 is an arc surface, and the arc length corresponding to the arc surface is a minor arc. When the two traction rods 52 are in the gripped state, the locking plug 63 is inserted into the first slot 511 as the locking ring 61 moves, and the elastic snap-fit ​​64 is snapped into the corresponding positioning groove 522; when the two traction rods 52 are in the retracted state, the locking plug 63 is inserted into the second slot 521 as the locking ring 61 moves, and the elastic snap-fit ​​64 is snapped into the corresponding positioning groove 522.

[0035] Reference Figure 8 , Figure 9 and Figure 10The connecting plate 51 has an installation notch 512 on its side facing the traction rod 52 along its own length direction, which communicates with the first slot 511. The traction rod 52 has a receiving notch 523 on its outer periphery facing the connecting plate 51, which communicates with the installation notch 512. A control member 7 is provided in the receiving notch 523. A limiting member 8 is provided in the installation notch 512, wherein the limiting member 8 includes a limiting rod 81 that slides in the installation notch 512 and an elastic pressing member 82 provided in the installation notch 512 and used to drive the limiting rod 81 to slide in a direction away from the first slot 511. When the locking block 63 is inserted into the first slot 511, a limiting slot 632 is opened on its side facing the installation notch 512. The elastic extrusion member 82 includes a first spring 821 in a compressed state and a protruding plate 822 fixed on the outer periphery of the limiting rod 81. The inner wall of the mounting notch 512 is provided with a mounting groove 5121 for the protruding plate 822 to be inserted and slid. The first spring 821 is located on the side of the protruding plate 822 facing the first slot 511. The two ends of the first spring 821 are fixedly connected to the inner wall of the mounting groove 5121 and the protruding plate 822, respectively. When the flashlight is used for illumination, the locking block 63 is inserted into the first slot 511, and the control member 7 is used to drive one end of the limiting rod 81 into the limiting slot 632. This is to further lock the limiting block at this time using the limiting rod 81, thereby improving the stability of the corresponding state of the two traction rods 52 when the flashlight is used for illumination. When the control member 7 releases the pressure on the limiting rod 81, the elastic pressing member 82 can be used to drive the limiting rod 81 out of the limiting slot 632.

[0036] Reference Figure 8 and Figure 9 The control component 7 includes an elastic control plate 71 with one end rotatably connected to the receiving notch 523 toward the inner wall of the lamp cover 3. The elastic control plate 71 has the property of elastic elongation. The elastic control plate 71 is a conventional telescopic structure with an internal spring (not shown in the figure), which will not be described in detail here. When the two traction rods 52 are in the gripping state, the elastic control plate 71 rotates into the mounting notch 512 and is located below the end of the gripping part 2 away from the limiting rod 81, thereby squeezing the limiting rod 81.

[0037] Reference Figure 11 and Figure 12The elastic control plate 71 has a control slot 711 on its outer side when it is in the receiving notch 523. When the flashlight needs to be placed on the ground in a horizontal direction for illumination, the operator can rotate the two traction rods 52 in the gripping state to a mutually inclined support state, and then rotate the elastic control plate 71 out of the mounting notch 512 to a limit state perpendicular to the traction rods 52. Then, the two locking blocks 63 are inserted into the two control slots 711 respectively as the locking ring 61 moves. Finally, the two traction rods 52 are used to support the flashlight, so that the side of the two traction rods 52 away from the gripping part 2 simultaneously abuts against the ground.

[0038] The implementation principle of this application embodiment is as follows: Handheld lighting state: Rotate the two traction rods 52 with the connecting plate 51 to a side-by-side gripping state, slide and rotate the locking ring 61 to make the locking plug 63 insert into the first slot 511 of the connecting plate 51, and the elastic snap-fit ​​64 pops into the positioning groove 522 to complete the initial locking; at the same time, the elastic control plate 71 rotates into the installation notch 512 to squeeze the limiting rod 81, and the limiting rod 81 inserts into the limiting slot 632 of the locking plug 63 under the squeezing to achieve secondary locking, ensuring that the traction rods 52 are stable when gripped, and the staff can hold the traction rods 52 to operate the flashlight.

[0039] In the horizontal ground lighting state: rotate the two pull rods 52 in the gripping state to a mutually inclined support state, rotate the elastic control plate 71 out from the mounting notch 512 to a limit state perpendicular to the pull rods 52, move the locking ring 61 so that the two locking blocks 63 are respectively inserted into the control slots 711, and use the inclined two pull rods 52 to form a support structure, so that the side of the pull rod 52 away from the grip part 2 abuts against the ground, thereby achieving stable support for the flashlight to be placed horizontally for lighting.

[0040] Storage position: When the two pull rods 52 in the grip position are rotated to the storage position where they are side by side with the connecting plate 51, the sliding locking ring 61 causes the locking plug 63 to be inserted into the second slot 521 of the pull rod 52, and the elastic snap-fit ​​64 pops into the positioning groove 522 of the second slot 521 to complete the limit, so that the pull rod 52 fits the grip part 2, which greatly reduces the overall size of the flashlight and improves the space utilization rate of storage.

[0041] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Identical components are represented by the same reference numerals. Therefore, all equivalent changes made to the structure, shape, and principle of this application should be covered within the scope of protection of this application.

Claims

1. An explosion-proof flashlight with adjustable light source, comprising a grip (2) and a mounting part (1) fixed to one end of the grip (2), wherein a lamp cover (3) is detachably sleeved on the outer periphery of the end of the mounting part (1) away from the grip (2), wherein a mobile power supply is provided inside the grip (2) and a control button (21) for controlling the mobile power supply is fixed on the outer periphery; Its features are, The mounting part (1) is equipped with a support plate (11), and a light source (12) is fixed on the side of the support plate (11) facing the lamp cover (3); a condenser lens (31) is fixed on the lamp cover (3), and an adjustment member (4) is provided on the outer periphery of the mounting part (1) to drive the support plate (11) to move back and forth in the direction close to the condenser lens (31).

2. The explosion-proof flashlight with adjustable light source according to claim 1, characterized in that, The mounting part (1) is provided with a first thread on its outer periphery, and the adjusting part (4) includes an adjusting sleeve (41) sleeved on the outer periphery of the mounting part (1); The inner wall of the adjusting sleeve (41) is provided with a second thread that matches the first thread. The inner wall of the lamp cover (3) is provided with a recessed groove (32) for the adjusting sleeve (41) to be inserted away from the edge of the grip (2). An adjusting protrusion (42) is fixed on the outer periphery of the end of the adjusting sleeve (41) near the grip (2). A guide block (111) is fixed on the outer periphery of the support plate (11). A third thread that mates with the second thread is provided on the outer side of the guide block (111). A guide notch (13) for inserting the guide block (111) is provided on the outer periphery of the mounting part (1) along its own axis.

3. The explosion-proof flashlight with adjustable light source according to claim 2, characterized in that, A fixing plate (22) is fixedly provided on the outer periphery of the end of the grip (2) away from the mounting part (1). Two connecting plates (51) are rotatably installed on the side of the fixing plate (22) away from the mounting part (1). The rotating surface of the connecting plate (51) is parallel to the end face of the grip (2). A traction rod (52) parallel to the grip (2) is fixedly provided on the end of the connecting plate (51) away from the fixing plate (22) along the direction close to the lamp cover (3). The two traction rods (52) can rotate with the connecting plate (51) in a direction away from the gripping part (2) to a gripping state where they are side by side and abutting each other, and in a direction close to the gripping part (2) to a storage state where they are side by side and abutting each other. The outer periphery of the gripping part (2) is provided with a locking member (6) that limits the traction rods (52) in the gripping and storage states.

4. The explosion-proof flashlight with adjustable light source according to claim 3, characterized in that, The locking member (6) includes a locking ring (61) sleeved on the outer periphery of the grip (2), the locking ring (61) being able to rotate around the axis of the grip (2) and slide along the axis of the grip (2); a locking protrusion (62) is fixedly provided on the outer periphery of the locking ring (61), and two locking blocks (63) are fixedly provided on the side of the locking protrusion (62) away from the lamp cover (3); The connecting plate (51) has a first slot (511) on the side facing the lamp cover (3), and the traction rod (52) has a second slot (521) on the end face away from the connecting plate (51). The locking block (63) can be inserted into the first slot (511) when the two traction rods (52) are in the gripping state, and can be inserted into the second slot (521) when the two traction rods (52) are in the storage state.

5. The explosion-proof flashlight with adjustable light source according to claim 4, characterized in that, The locking plug (63) is provided with an elastic snap-fit ​​member (64) on its outer periphery, and the inner walls of the first slot (511) and the second slot (521) are provided with positioning grooves (522) for the elastic snap-fit ​​member (64) to be snapped into.

6. The explosion-proof flashlight with adjustable light source according to claim 5, characterized in that, The elastic snap-fit ​​component (64) includes a compression spring (641) and an arc-shaped protrusion (642). The locking insert (63) has a placement groove (631) for inserting the compression spring (641) and the arc-shaped protrusion (642). The compression spring (641) presses one side of the arc-shaped protrusion (642) so that a part of the arc-shaped protrusion (642) protrudes from the opening of the placement groove (631). The outer surface of the protruding part of the arc-shaped protrusion (642) is an arc surface, and the arc length corresponding to the arc surface is a minor arc.

7. The explosion-proof flashlight with adjustable light source according to claim 4, characterized in that, The connecting plate (51) has an installation notch (512) that communicates with the first slot (511) on its side facing the traction rod (52) along its own length direction. The traction rod (52) has a receiving notch (523) that communicates with the installation notch (512) on its outer periphery facing the connecting plate (51), and a control component (7) located in the receiving notch (523) is provided. A limiting rod (81) is slidably provided in the mounting notch (512), and an elastic pressing member (82) is provided to drive the limiting rod (81) to slide in a direction away from the first slot (511). When the locking block (63) is inserted into the first slot (511), a limiting slot (632) is opened on the side facing the mounting notch (512). When the locking block (63) is inserted into the first slot (511), the control member (7) is used to drive one end of the limiting rod (81) to be inserted into the limiting slot (632).

8. The explosion-proof flashlight with adjustable light source according to claim 7, characterized in that, The elastic compression member (82) includes a first spring (821) in a compressed state and a protruding plate (822) fixed on the outer periphery of the limiting rod (81). The inner wall of the mounting notch (512) is provided with a mounting groove (5121) for the protruding plate (822) to be inserted and slid. The first spring (821) is located on the side of the protruding plate (822) facing the first slot (511). The two ends of the first spring (821) are fixedly connected to the inner wall of the mounting groove (5121) and the protruding plate (822) respectively.

9. The explosion-proof flashlight with adjustable light source according to claim 7, characterized in that, The control component (7) includes an elastic control plate (71) with one end rotatably connected to the receiving notch (523) facing the inner wall of the lamp cover (3). The elastic control plate (71) has the property of elastic elongation. When the two traction rods (52) are in the gripping state, the elastic control plate (71) rotates into the mounting notch (512) and is located below one end of the gripping part (2) away from the limiting rod (81).

10. An explosion-proof flashlight with adjustable light source according to claim 9, characterized in that, The elastic control plate (71) has a control slot (711) on its outer side when it is in the accommodating notch (523); the two traction rods (52) can rotate to a mutually inclined support state when they are in the gripping state, and the side of the two traction rods (52) away from the gripping part (2) can simultaneously abut against the ground. When the two traction rods (52) are in a supported state, the elastic control plate (71) rotates out from the mounting notch (512) to a limited state perpendicular to the traction rods (52), and the two locking blocks (63) can be inserted into the two control slots (711) respectively as the locking ring (61) moves.

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