Shock-resistant explosion-proof flashlight

By employing a locking mechanism and sealing gasket design in the explosion-proof flashlight, the problem of easy loosening of the threaded connection between the lamp head and the handle is solved, achieving high impact resistance and convenient assembly and disassembly.

CN223636119UActive Publication Date: 2025-12-05CHINA HELON EXPLOSION PROOF ELECTRIC
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Patent Information

Application Number
CN202423247486.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-27
Publication Date
2025-12-05
Estimated Expiration
2034-12-27

AI Technical Summary

Technical Problem

When using existing explosion-proof flashlights, the threaded connection between the lamp head and the handle is prone to loosening, resulting in poor sealing safety and insufficient impact resistance.

Method used

The explosion-proof lamp head and explosion-proof handle are connected by threads. The connection is secured by a locking mechanism and a sealing gasket. The design of the locking block and locking groove prevents loosening. Combined with the limiting structure of the protective sleeve and compression spring, it can be easily installed and removed.

Benefits of technology

When subjected to external impact, the lamp head and handle will not loosen, improving the impact resistance and sealing safety of the explosion-proof flashlight, while maintaining a convenient assembly and disassembly structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-impact anti-explosion flashlight which comprises an anti-explosion lamp holder and an anti-explosion handle, and the anti-explosion lamp holder is in threaded connection with the anti-explosion handle. A cavity is formed in the anti-explosion handle, the anti-explosion lamp holder is provided with a connector, and clamping and fixing mechanisms are arranged at the upper end and the lower end of the connector. The clamping mechanism comprises a clamping groove, a pressure spring and a clamping block; a clamping groove is formed in the inner wall of the opening edge of the anti-explosion handle, the clamping groove corresponds to the clamping groove after the anti-explosion handle is screwed in place, the clamping block is clamped in the clamping groove, and the upper portion of the right side of the clamping block is an inclined face. Sliding grooves are formed in the top and the bottom of the anti-explosion handle respectively, a protective sleeve is arranged outside the anti-explosion handle, adjusting parts extending into the sliding grooves are arranged on the inner side of the protective sleeve, and blocking pieces for blocking the adjusting parts are arranged on the anti-explosion handle. When the flashlight is used and the explosion-proof flashlight is impacted by the outside, the lamp holder and the handle part cannot be loosened, so that the flashlight is safer and high in impact resistance.
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Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of explosion -proof flashlight, concretely relates to an anti -impact explosion -proof flashlight. BACKGROUND

[0002] The explosion -proof flashlight is a kind of lighting tool specially designed for flammable and explosive place, mainly used in fire fighting, electric power, industrial and mining enterprises and other flammable and explosive places, provides mobile lighting. Considering in flammable and explosive environment, any electric spark can cause disastrous consequences, explosion -proof flashlight must adopt explosion -proof design to prevent the electric spark or high temperature that can be produced inside the flashlight from causing explosion.

[0003] The lamp holder and handle of the current explosion -proof flashlight include two fixed modes, one is integrally cast, and the other is the mode that the lamp holder and handle shell are connected by thread, such as the Chinese invention patent with the publication number CN116293595B discloses a kind of explosion -proof flashlight, points out "shell 100 includes lamp holder 110, lamp body 120 and tail cover 130, lamp holder 110 and tail cover 130 are respectively arranged at both ends of lamp body 120.

[0004] The mode that the lamp holder and handle shell are connected by thread, since flashlight can be subjected to collision at any time when using, the thread connection between lamp holder and handle part is easy to loosen when subjected to external impact, affects sealing safety, so the impact resistance is poor. UTILITY MODEL CONTENTS

[0005] The utility model provides an anti -impact explosion -proof flashlight, when explosion -proof flashlight is subjected to external impact during use, lamp holder and handle part will not loosen, safer, high impact resistance, to solve the problem proposed in above -mentioned background art.

[0006] To achieve the above object, the utility model provides the following technical scheme: an anti -impact explosion -proof flashlight, including explosion -proof lamp holder and explosion -proof handle, the explosion -proof lamp holder is connected by thread with the explosion -proof handle, the cavity is equipped in the explosion -proof handle, the explosion -proof lamp holder is equipped with the connecting head that enters the head end of the explosion -proof handle, the upper and lower ends of the connecting head are equipped with the clamping mechanism of clamping groove and spring in groove, clamping block, the explosion -proof handle mouth along inner wall is equipped with the clamping groove corresponding with it, the clamping groove and the clamping groove correspond after the explosion -proof handle is screwed into place, the clamping block is clamped in the clamping groove, the right side upper portion of the clamping block is inclined plane, and the explosion -proof handle mouth along inner side is chamfered mouth along; Explosion -proof handle is equipped with the slide groove that passes through left and right in the top and bottom respectively, the explosion -proof handle is equipped with the protective sleeve outside, the adjusting part that enters the slide groove is equipped in the protective sleeve inner side, and the explosion -proof handle is equipped with the blocking piece that blocks the adjusting part.

[0007] Preferably, a sealing washer is arranged between the explosion-proof handle and the explosion-proof lamp holder.

[0008] Preferably, an annular groove is arranged on the inner wall of the protective sleeve away from the explosion-proof lamp holder, a gap is formed between the annular groove and the explosion-proof handle, a convex ring is arranged on the outer wall of the explosion-proof handle, the convex ring is tightly attached to the inner wall of the protective sleeve at the annular groove, and an extrusion spring is arranged on the outer wall of the explosion-proof handle in the annular groove.

[0009] Preferably, a pulling part is arranged on the outer wall of the protective sleeve.

[0010] Preferably, the width of the sliding groove is smaller than the width of the clamping groove.

[0011] Preferably, the blocking piece comprises two sealing half-rings, and the outer side of the explosion-proof handle is provided with an annular groove, and the two sealing half-rings are sleeved in the annular groove.

[0012] Preferably, a gap space is arranged between the protective sleeve and the explosion-proof lamp holder, and after the blocking piece is disassembled, the protective sleeve is moved in the gap space, so that the adjusting part can be located beyond the clamping block.

[0013] Preferably, the clamping block is also provided with an inclined surface on the upper left side, and the height of the left inclined surface is smaller than the height of the right inclined surface.

[0014] Compared with the prior art, the utility model has the beneficial effects that:

[0015] 1. During use, the explosion-proof flashlight is not loose when subjected to external impact, is safer, and has high impact resistance.

[0016] 2. While ensuring high impact resistance, the utility model also has the advantages of convenient assembly and disassembly, simple structure, and suitability for promotion. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the sectional structure of the utility model;

[0018] Figure 2 It is an enlarged structure schematic view of A in the utility model; Figure 1

[0019] Figure 3 It is a top view structure schematic view of the utility model after removing the protective sleeve;

[0020] Figure 4 It is a sealing half-ring structure schematic view of the utility model.

[0021] ​In the figure: 1, explosion-proof lamp holder; 2, explosion-proof handle; 3, connecting head; 4, clamping groove; 5, compression spring; 6, clamping block; 7, clamping groove; 8, sliding groove; 9, protective sleeve; 10, adjusting part; 11, sealing washer; 12, convex ring; 13, extrusion spring; 14, pulling part; 15, sealing half ring. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0023] Please refer to Figures 1-4 The utility model provides an anti -impact explosion -proof flashlight, including explosion -proof lamp holder 1 and explosion -proof handle 2, explosion -proof lamp holder 1 with explosion -proof handle 2 between threaded connection, the cavity is equipped with in explosion -proof handle 2, explosion -proof lamp holder 1 is equipped with the connecting head 3 of entering the head end of explosion -proof handle 2, the upper and lower ends of connecting head 3 are equipped with clamping mechanism, the clamping mechanism includes clamping groove 4 and the compression spring 5 in the groove, clamping block 6, the mouth along the inner wall of explosion -proof handle 2 is equipped with the clamping groove 7 corresponding with it, after explosion -proof handle 2 is screwed into place clamping groove 7 with Clamping groove 4 corresponds, clamping block 6 is clamped in clamping groove 7, the right side upper portion of clamping block 6 is inclined plane, the mouth along the inner side of explosion -proof handle 2 is chamfered mouth along, explosion -proof handle 2 is equipped with protective sleeve 9 in the top and bottom respectively with the sliding groove 8 of clamping groove 7 left and right through, explosion -proof handle 2 is equipped with the adjusting part 10 of entering the sliding groove 8 in the inside of protective sleeve 9, explosion -proof handle 2 is equipped with the blocking piece of the blocking part 10 is carried out, when installing, the compression spring 5 in two clamping grooves 4 is loaded, clamping block 6, wherein the preliminary pressing of lower clamping block 6 is prevented from falling, explosion -proof handle 2 is screwed on the connecting head 3 of explosion -proof lamp holder 1, when the mouth along of explosion -proof handle 2 is reached to the right side of clamping block 6, through the cooperation of chamfered mouth along and the right side inclined surface of clamping block 6, clamping block 6 is extruded, makes clamping block 6 fully enter clamping groove 4, then continues to screw explosion -proof handle 2, after explosion -proof handle 2 is screwed in place, clamping groove 7 with clamping groove 4 corresponds, then clamping block 6 is partially clamped in clamping groove 7 under the extrusion of compression spring 5, explosion -proof handle 2, connecting head 3 clamping, so that during use, when the explosion -proof flashlight is subjected to external impact, the lamp holder and handle part will not loosen, it is safer, and the impact resistance is high.

[0024] Specifically, the explosion -proof handle 2 with explosion -proof lamp holder 1 between is equipped with sealing washer 11, in this embodiment, the sealing property between explosion -proof handle 2 and explosion -proof lamp holder 1 is further improved by setting sealing washer 11.

[0025] Specifically, the protective sleeve 9 is provided with an annular groove on the inner wall of the side away from the explosion-proof lamp holder 1, and a gap is formed between the annular groove and the explosion-proof handle 2, the outer wall of the explosion-proof handle 2 is provided with a convex ring 12 which is in close contact with the inner wall of the protective sleeve 9 at the annular groove, and the explosion-proof handle 2 is sleeved with an extrusion spring 13 located in the annular groove; in this embodiment, the protective sleeve 9 is difficult to move to the right under the extrusion limiting of the extrusion spring 13 during use, thereby avoiding the blocking piece from being separated.

[0026] Specifically, the outer wall of the protective sleeve 9 is provided with a pulling part 14; in this embodiment, the pulling part 14 is provided to facilitate pulling the protective sleeve 9 on the explosion-proof handle 2.

[0027] Specifically, the width of the sliding groove 8 is smaller than the width of the clamping groove 7; in this embodiment, the adjusting part 10 can pass through the clamping groove 7 through the sliding groove 8 and then press the clamping block 6 back, and the sliding groove 8 does not affect the limiting of the clamping groove 7 on the clamping block 6.

[0028] Specifically, the blocking piece includes two sealing half-rings 15, and the outer side of the explosion-proof handle 2 is provided with a ring groove, and the two sealing half-rings 15 are sleeved in the ring groove; in this embodiment, the two sealing half-rings 15 are provided to facilitate the disassembly and assembly of the blocking piece on the explosion-proof handle 2.

[0029] Specifically, a gap space is provided between the protective sleeve 9 and the explosion-proof lamp holder 1, and after the blocking piece is disassembled, the protective sleeve 9 moves in the gap space, so that the adjusting part 10 can be located beyond the clamping block 6; in this embodiment, the gap space allows the protective sleeve 9 to slide to the left, and then the adjusting part 10 can fully slide to the left to extrude the clamping block 6.

[0030] Specifically, the clamping block 6 is also provided with an inclined surface on the left upper side, and the height of the left inclined surface is smaller than that of the right inclined surface; in this embodiment, since the adjusting part 10 inevitably has errors, it is difficult to completely press the clamping block 6 back into the clamping groove 4, and by providing an inclined surface on the left side, when the clamping block 6 is fully pressed back into the clamping groove 4, the inclined surface can also prevent the explosion-proof handle 2 from being twisted in the opposite direction.

[0031] In order to facilitate the understanding of the above technical scheme of the utility model, the working principle or operation mode of the utility model in the actual process will be described in detail.

[0032] Working principle: when installing, the sealing washer 11 is sleeved on the connecting head 3, the compression spring 5 and the clamping block 6 are arranged in the two clamping grooves 4, the lower clamping block 6 is preliminarily pressed to prevent falling, the sealing half ring 15 is arranged on the explosion-proof handle 2 by pulling the protection sleeve 9 to extrude the compression spring 13 through the pulling part 14, then the pulling part 14 is loosened, the protection sleeve 9 covers the sealing half ring 15 under the extrusion of the compression spring 13 through the limit of the convex ring 12, the explosion-proof handle 2 is screwed on the connecting head 3 of the explosion-proof lamp head 1, when the mouth of the explosion-proof handle 2 abuts against the right side of the clamping block 6, the clamping block 6 is extruded through the cooperation of the chamfered mouth and the inclined surface of the right side of the clamping block 6, so that the clamping block 6 is fully arranged in the clamping groove 4, then the explosion-proof handle 2 is continuously screwed, after the explosion-proof handle 2 is screwed in place, the clamping groove 7 corresponds to the clamping groove 4, so that the clamping block 6 is partially arranged in the clamping groove 7 under the extrusion of the compression spring 5, the explosion-proof handle 2 and the connecting head 3 are clamped, so that when the explosion-proof flashlight is subjected to external impact during use, the lamp head and the handle part will not be loose, which is safer and has high impact resistance; when disassembling, the two sealing half rings 15 are taken out by pulling the protection sleeve 9 to extrude the compression spring 13 through the pulling part 14 on the explosion-proof handle 2, then the pulling part 14 is loosened, the protection sleeve 9 moves to the left under the extrusion of the compression spring 13, and the adjusting part 10 moves to the left and extrudes the clamping block 6 through the inclined surface to make the clamping block 6 enter the clamping groove 4, so that the explosion-proof handle 2 and the connecting head 3 are disengaged, then the explosion-proof handle 2 is reversely screwed.

[0033] Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the utility model, the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An impact-resistant explosion-proof torch comprising an explosion-proof head (1) and an explosion-proof handle (2), characterized in that, The explosion-proof lamp holder (1) is threadedly connected with the explosion-proof handle (2); the explosion-proof handle (2) is internally provided with a cavity, the explosion-proof lamp holder (1) is provided with a connecting head (3) extending into the head end of the explosion-proof handle (2), and the upper and lower ends of the connecting head (3) are both provided with clamping mechanisms; the clamping mechanism comprises a clamping groove (4), a compression spring (5) and a clamping block (6) located in the groove; the inner wall of the mouth of the explosion-proof handle (2) is provided with a clamping groove (7) corresponding thereto, the clamping groove (7) corresponds to the clamping groove (4) after the explosion-proof handle (2) is screwed into place, the clamping block (6) is clamped in the clamping groove (7), the right side upper portion of the clamping block (6) is a slope, and the inner side of the mouth of the explosion-proof handle (2) is a chamfered mouth; the explosion-proof handle (2) is provided with a sliding groove (8) penetrating left and right with the clamping groove (7) at the top and the bottom respectively, the explosion-proof handle (2) is externally provided with a protective sleeve (9), the inner side of the protective sleeve (9) is provided with an adjusting part (10) extending into the sliding groove (8), and the explosion-proof handle (2) is provided with a blocking piece blocking the adjusting part (10).

2. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The explosion-proof handle (2) is provided with a sealing gasket (11) between the explosion-proof handle (2) and the explosion-proof lamp holder (1).

3. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The protective sleeve (9) is provided with an annular groove in the inner wall of the side away from the explosion-proof lamp holder (1), a gap is formed between the annular groove and the explosion-proof handle (2), the outer wall of the explosion-proof handle (2) is provided with a convex ring (12), the convex ring (12) is tightly attached to the inner wall of the protective sleeve (9) at the annular groove, and the explosion-proof handle (2) is provided with an extrusion spring (13) located in the annular groove.

4. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The outer wall of the protective sleeve (9) is provided with a pulling part (14).

5. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The width of the sliding groove (8) is smaller than the width of the clamping groove (7).

6. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The blocking piece comprises two sealing half-rings (15), and the outer side of the explosion-proof handle (2) is provided with an annular groove, and the two sealing half-rings (15) are sleeved in the annular groove.

7. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The protective sleeve (9) and the explosion-proof lamp holder (1) are provided with a gap space, and after the blocking piece is disassembled, the protective sleeve (9) moves in the gap space, so that the adjusting part (10) can be located beyond the clamping block (6).

8. The impact-resistant, explosion-proof flashlight of claim 1, wherein, The clamping block (6) is also provided with a slope on the left upper portion, and the height of the left slope is smaller than that of the right slope.

Citation Information

Patent Citations

  • Explosion-proof high-intensity flashlight

    CN116293595B