A protection device for an explosion-proof lamp

The linkage structure of the sliding ring and the limiting plate enables the individual detachable replacement of the tempered glass cover of the explosion-proof lamp, solving the problems of material waste and maintenance inconvenience caused by overall replacement in the existing technology, and improving the protective performance and equipment durability in high-risk environments.

CN224551485UActive Publication Date: 2026-07-24SHANGHAI LAFU INTELLIGENT TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI LAFU INTELLIGENT TECH CO LTD
Filing Date
2025-08-11
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing explosion-proof lamps require complete replacement of the protective devices after the glass breaks, resulting in material waste and maintenance inconvenience, and are uneconomical, especially in high-risk environments.

Method used

The system employs a linkage structure of sliding ring, limiting plate, and mounting groove to enable individual detachable replacement of the tempered glass cover, and optimizes impact protection through the design of the protective cover and tempered glass cover.

Benefits of technology

It enables the individual replacement of tempered glass covers, reducing maintenance costs and operational complexity, and improving protective performance and equipment durability in high-risk environments.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a protection device of explosion -proof lamp, including lamp body, mounting ring no.
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Description

Technical Field

[0001] This utility model relates to the field of explosion-proof lamp technology, specifically to a protective device for explosion-proof lamps. Background Technology

[0002] The protective devices of explosion-proof lights mainly prevent sparks and high temperatures generated inside the lamp due to malfunctions from coming into contact with external flammable and explosive gases and dust through robust explosion-proof shells and sealed structures. At the same time, they resist external impacts and corrosion, ensuring that no explosion will occur in hazardous environments and guaranteeing the safe operation of the equipment.

[0003] While existing protective devices can provide protection, replacing the protective components is quite cumbersome. In particular, if a violent collision or explosion occurs, the glass in front of the light will shatter. However, since the glass is part of the protective component, if only the glass shatters but the rest of the component remains intact, the entire protective component still needs to be replaced, resulting in unnecessary loss of protective materials. This makes it unsuitable for frequent use in high-risk areas.

[0004] Therefore, a solution is needed. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the prior art, this utility model provides a protective device for explosion-proof lamps to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A protective device for an explosion-proof lamp, characterized in that it includes a lamp body, a mounting ring, and a protective mechanism, wherein the lamp body has a cylindrical structure, the mounting ring is wrapped around the front end of the lamp body, and the protective mechanism is located in front of the mounting ring.

[0010] The protective mechanism includes a second mounting ring, several bolts, a protective cover, several mounting grooves, a tempered glass cover, mounting glass, a sliding groove, a sliding ring, a connecting strip, and a limiting plate. The second mounting ring is located at the front end of the first mounting ring. The bolts are evenly distributed and pass through the second mounting ring and the first mounting ring. The protective cover is arranged in a ring structure inside the second mounting ring. The mounting grooves are arranged in a ring structure at the rear end of the protective cover. The tempered glass cover is arranged in a semi-enclosed spherical structure inside the protective cover. The mounting glass is located on the periphery of the tempered glass cover corresponding to the position of each mounting groove. The sliding groove is located inside the outer half of the protective cover. The sliding ring is located inside the sliding groove. The connecting strip is located at the bottom of the rear end of the sliding ring. The limiting plate is equidistantly located at the rear end of the connecting strip.

[0011] Preferably, the inner circumference of the protective cover is thicker than the outer circumference, the rear end of the protective cover is flat and the front end is tapered, the protective cover and the mounting ring are integrally formed, the mounting grooves are all located on the inner half of the rear end of the protective cover and the thickness of the mounting grooves is equal to half the thickness of the inner circumference of the protective cover, the tempered glass cover protrudes towards the front end and the protrusion thickness exceeds the inner circumference thickness of the protective cover, and the tempered glass cover and the mounting glass are integrally formed.

[0012] Preferably, the opening of the slide groove faces the rear end, the width of the opening of the slide groove is less than the width of the slide groove, the connecting strip has an arc-shaped structure and is located in the middle of the arc width of the sliding ring, the limiting plate has a fan-shaped structure, and the sliding ring, the connecting strip and the limiting plate are integrally formed.

[0013] Preferably, the limiting plates are symmetrically distributed on the connecting strip along the arc of the connecting strip, the height of the limiting plates is greater than the width of the sliding ring in the circumferential direction, the thickness of the connecting strip corresponds to the thickness at the opening of the groove, the bottom of the limiting plates is higher than the bottom of the protective cover, and the arc length of the limiting plates is less than the arc length between each two adjacent mounting grooves.

[0014] (III) Beneficial Effects

[0015] This utility model provides a protective device for explosion-proof lamps. It has the following beneficial effects:

[0016] 1. In existing technologies, the glass and protective components are integrated, requiring replacement of the entire unit upon breakage. This solution utilizes a linkage structure of "sliding ring + limiting plate + mounting groove" to enable the individual detachable replacement of the tempered glass cover.

[0017] 2. This solution optimizes impact protection through structural design, enhancing protective performance in high-risk environments.

[0018] 3. This solution balances "installation stability" and "maintenance convenience," ensuring reliable installation and simple maintenance.

[0019] 4. This solution adopts an integrated structure to improve overall adaptability, ensuring protection while enhancing industrial compatibility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 This is a schematic diagram of the protective cover structure of this utility model;

[0022] Figure 3 This is a schematic diagram of the rear end of the protective cover of this utility model;

[0023] Figure 4 This is a schematic diagram of the front and back structures of the tempered glass cover of this utility model;

[0024] Figure 5 This is a detailed structural diagram of the rear end of the protective cover of this utility model;

[0025] Figure 6 This utility model Figure 5 Detailed structural diagram;

[0026] Figure 7 This is a schematic diagram of the groove and sliding ring structure of this utility model;

[0027] Figure 8 This is a schematic diagram of the integrated structure of the sliding ring, connecting strip, and limiting plate of this utility model.

[0028] In the diagram: 1-Lamp body; 2-Mounting ring one; 3-Protective mechanism; 31-Mounting ring two; 32-Several bolts; 33-Protective cover; 34-Several mounting grooves; 35-Tempered glass cover; 36-Mounting glass; 37-Sliding groove; 38-Sliding ring; 39-Connecting strip; 310-Limiting plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figure 1-8The present invention provides a technical solution to achieve this: it includes a lamp body 1, a mounting ring 2 and a protective mechanism 3. The lamp body 1 has a cylindrical structure, the mounting ring 2 is wrapped around the front end of the lamp body 1, and the protective mechanism 3 is located in front of the mounting ring 2.

[0031] The protective mechanism 3 includes a second mounting ring 31, several bolts 32, a protective cover 33, several mounting grooves 34, a tempered glass cover 35, a mounting glass 36, a sliding groove 37, a sliding ring 38, a connecting strip 39, and a limiting plate 310. The second mounting ring 31 is located at the front end of the first mounting ring 2. Several bolts 32 are evenly arranged and pass through the second mounting ring 31 and the first mounting ring 2. The protective cover 33 is arranged in a ring structure inside the second mounting ring 31. Several mounting grooves 34 are arranged in a ring structure at the rear end of the protective cover 33. The tempered glass cover 35 is arranged in a semi-enclosed spherical structure inside the protective cover 33. The mounting glass 36 is located on the periphery of the tempered glass cover 35 corresponding to the position of each mounting groove 34. The sliding groove 37 is located inside the outer half of the protective cover 33. The sliding ring 38 is located inside the sliding groove 37. The connecting strip 39 is located at the bottom of the rear end of the sliding ring 38. The limiting plate 310 is equidistantly located at the rear end of the connecting strip 39.

[0032] In detail, the inner thickness of the protective cover 33 is greater than the outer thickness. The rear end of the protective cover 33 is flat and the front end has a conical structure. The protective cover 33 and the mounting ring 31 are integrally formed. The mounting grooves 34 are all located on the inner half of the rear end of the protective cover 33 and the thickness of the mounting grooves 34 is equal to half the thickness of the inner circumference of the protective cover 33. The tempered glass cover 35 protrudes towards the front end and the thickness of the protrusion exceeds the thickness of the inner circumference of the protective cover 33. The tempered glass cover 35 and the mounting glass 36 are integrally formed.

[0033] More specifically, the opening of the slide groove 37 faces the rear end, the width of the opening of the slide groove 37 is less than the width of the slide groove 37, the connecting strip 39 has an arc-shaped structure and is located in the middle of the arc width of the sliding ring 38, the limiting plate 310 has a fan-shaped structure, and the sliding ring 38, the connecting strip 39 and the limiting plate 310 are integrally formed.

[0034] The limiting plate 310 is symmetrically distributed on the connecting strip 39 along the arc of the connecting strip 39. The height of the limiting plate 310 is greater than the width of the sliding ring 38 in the circumferential direction. The thickness of the connecting strip 39 corresponds to the thickness at the opening of the slide groove 37. The bottom of the limiting plate 310 is higher than the bottom of the protective cover 33. The arc length of the limiting plate 310 is less than the arc length between each two adjacent mounting grooves 34.

[0035] Solution Analysis:

[0036] This addresses the problem of "cumbersome replacement of protective components and waste of materials".

[0037] In existing technologies, the glass and protective components are integrated, requiring replacement of the entire unit upon breakage. This solution utilizes a linkage structure of "sliding ring 38 + limiting plate 310 + mounting groove 34" to achieve individual detachable replacement of the tempered glass cover 35.

[0038] During normal use, the limit plate 310 slides down to the mounting groove 34 due to its own weight, locking the tempered glass cover 35 (the mounting glass 36 and the tempered glass cover 35 are integrated), ensuring structural stability.

[0039] When the glass breaks, simply remove bolt 32 to take off the protective mechanism 3, and rotate the limiting plate 310 to drive the sliding ring 38 to rotate, so that the limiting plate 310 and the mounting groove 34 are staggered, allowing the tempered glass cover 35 to be pushed out for individual replacement. This eliminates the need to replace the entire protective component, avoiding unnecessary material waste and significantly reducing maintenance costs and operational complexity in high-risk environments.

[0040] Enhance protective performance in high-risk environments

[0041] Optimize impact protection through structural design:

[0042] The protective cover 33 conical front end and the tempered glass cover 35 hemispherical surface form a "double-layer guidance": In high-risk environments (such as hard object splashes and explosive impacts), some debris will come into contact with the protective cover 33 conical surface and be guided to disperse and absorb the force in all directions; the remaining impact is guided and dispersed by the tempered glass cover 35 hemispherical surface, reducing direct damage to the explosion-proof lamp body and improving the durability of the equipment in flammable, explosive and high-risk scenarios.

[0043] Balancing "installation stability" and "ease of maintenance"

[0044] Reliable fixation: The limit plate 310 slides naturally into the mounting groove 34 by gravity, accurately locking the tempered glass cover 35. No additional locking structure is required, which can ensure that the glass cover will not fall off during normal use, and is suitable for the long-term stable operation of explosion-proof lights.

[0045] Simple maintenance: The glass cover can be replaced by simply moving the limit plate 310 manually. The operation process is simple, reducing the difficulty of maintenance in high-risk environments (no complicated tools or professional skills are required) and improving equipment availability.

[0046] Structural integration enhances overall adaptability

[0047] The protective cover 33 and the mounting ring 31 are integrally formed, and the tempered glass cover 35 and the mounting glass 36 are integrally formed. This not only enhances the structural strength of the protective mechanism 3 (reducing the gaps between parts and avoiding the risk of debris / flammable and explosive gas intrusion), but also simplifies the production and assembly process, ensuring the protective effect while improving industrial adaptability.

[0048] Technical effects of implementing this solution:

[0049] This solution, through its innovative detachable glass structure, completely solves the material waste and maintenance problems inherent in existing technologies where "the entire component must be replaced when the glass breaks." Simultaneously, it optimizes impact protection using geometric structures (conical and hemispherical), balancing fixation reliability with ease of operation. From the three dimensions of "durability in high-risk environments," "maintenance cost control," and "structural stability," it achieves a comprehensive upgrade of the explosion-proof lamp protection device, making it particularly suitable for long-term use in high-risk scenarios involving flammable and explosive materials and frequent impacts, thus possessing both economic and safety value.

[0050] Working principle: The protective mechanism 3 is installed on the lamp body 1 by bolts 32 and mounting rings 31. In the event of a hard object splash, violent collision, or explosion, debris will fly. If the debris reaches the explosion-proof lamp, the conical surface of the protective cover 33 can guide some of the debris to dissipate and disperse. Debris directly facing the tempered glass cover 35 will be further guided and diffused to the surroundings through the hemispherical surface of the tempered glass cover 35, reducing damage to the explosion-proof lamp. If the tempered glass cover shatters but the other structures of the protective mechanism 3 are undamaged, bolts 32 can be removed to disassemble the entire protective mechanism 3. Then, the limiting plates 310 can be manually moved, causing the sliding rings 38 to rotate through the connecting strips 39 until each limiting plate 310 is positioned between each pair of adjacent mounting slots 24. Then, the tempered glass cover 35 can be pushed out from front to back, which is convenient and quick. Normally, the limit plate 310 will slide down to the bottom through the sliding ring 38 due to its own weight, and it will block each corresponding mounting slot 34, preventing the tempered glass cover 35 from detaching.

[0051] The components of this utility model are: 1-lamp body; 2-mounting ring one; 3-protective mechanism; 31-mounting ring two; 32-several bolts; 33-protective cover; 34-several mounting grooves; 35-tempered glass cover; 36-mounting glass; 37-sliding groove; 38-sliding ring; 39-connecting strip; 310-limiting plate. These components are all general standard parts or components known to those skilled in the art. Their structure and principle can be learned by those skilled in the art through technical manuals or conventional experimental methods. The problem solved by this utility model is that although existing protective devices can play a protective role, the replacement of protective components is relatively cumbersome. In particular, if a violent collision or explosion occurs, the glass in front of the lamp will shatter. However, the glass and the protective component are an integral part. If only the glass is broken but the rest is intact, the entire protective component still needs to be replaced, resulting in unnecessary loss of protective materials. This is not conducive to frequent use in high-risk areas. This utility model achieves a comprehensive upgrade of the explosion-proof lamp protection device from three dimensions: "durability in high-risk environments", "maintenance cost control" and "structural stability". It is especially suitable for long-term use in high-risk scenarios with flammable and explosive materials and frequent impacts, and has both economic and safety value.

[0052] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. It will be apparent to those skilled in the art that this utility model is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or basic characteristics of this utility model. Therefore, the embodiments should be considered exemplary and non-limiting in all respects. The scope of this utility model is defined by the appended claims rather than the foregoing description, and thus all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this utility model. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0053] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A protective device for an explosion-proof lamp, characterized in that: It includes a lamp body (1), a mounting ring (2) and a protective mechanism (3). The lamp body (1) has a cylindrical structure. The mounting ring (2) is wrapped around the front end of the lamp body (1). The protective mechanism (3) is located in front of the mounting ring (2). The protective mechanism (3) includes a second mounting ring (31), several bolts (32), a protective cover (33), several mounting grooves (34), a tempered glass cover (35), a mounting glass (36), a sliding groove (37), a sliding ring (38), a connecting strip (39), and a limiting plate (310). The second mounting ring (31) is located at the front end of the first mounting ring (2). Several bolts (32) are evenly arranged and pass through the second mounting ring (31) and the first mounting ring (2). The protective cover (33) is arranged in a ring structure inside the second mounting ring (31). The mounting grooves (34) are arranged between... The protective cover (33) is arranged in a ring structure at the rear end of the protective cover (33). The tempered glass cover (35) is arranged in a semi-enclosed spherical structure inside the protective cover (33). The mounting glass (36) is arranged on the periphery of the tempered glass cover (35) corresponding to the position of each mounting groove (34). The sliding groove (37) is arranged inside the outer half ring of the protective cover (33). The sliding ring (38) is arranged inside the sliding groove (37). The connecting strip (39) is arranged at the bottom of the rear end of the sliding ring (38). The limiting plate (310) is equidistantly arranged at the rear end of the connecting strip (39).

2. The protective device for an explosion-proof lamp according to claim 1, characterized in that: The inner circumference of the protective cover (33) is thicker than the outer circumference. The rear end of the protective cover (33) is flat and the front end is tapered. The protective cover (33) and the mounting ring (31) are integrally formed. The mounting grooves (34) are all located on the inner half of the rear end of the protective cover (33) and the thickness of the mounting grooves (34) is equal to half the thickness of the inner circumference of the protective cover (33). The tempered glass cover (35) protrudes to the front end and the protrusion thickness exceeds the inner circumference thickness of the protective cover (33). The tempered glass cover (35) and the mounting glass (36) are integrally formed.

3. The protective device for an explosion-proof lamp according to claim 2, characterized in that: The opening of the groove (37) faces the rear end, the width of the opening of the groove (37) is smaller than the width of the groove (37), the connecting strip (39) has an arc-shaped structure and is located in the middle of the arc width of the sliding ring (38), the limiting plate (310) has a fan-shaped structure, and the sliding ring (38), the connecting strip (39) and the limiting plate (310) are integrally formed.

4. The protective device for an explosion-proof lamp according to claim 3, characterized in that: The limiting plate (310) is symmetrically distributed on the connecting strip (39) along the arc of the connecting strip (39). The height of the limiting plate (310) is greater than the width of the sliding ring (38) in the circumferential direction. The thickness of the connecting strip (39) corresponds to the thickness at the opening of the groove (37). The bottom of the limiting plate (310) is higher than the bottom of the protective cover (33). The arc length of the limiting plate (310) is less than the arc length between each two adjacent mounting grooves (34).