Explosion-proof lamps that can be replaced with electricity

Abstract

The present invention relates to the field of explosion-proof special lighting equipment, and specifically to an explosion-proof lamp. It includes a lamp holder electrically connected to a power supply line and a lamp body detachably fixed to the lamp holder; the lamp body has a light source cavity and an electrical cavity, and the light source is arranged in the light source cavity. The lamp holder has a plug with power contacts; the light source cavity has a jack, and the electrical components are electrically connected to the power contacts on the plug through a control system; the control system includes a driving component designed on the outside of the light source cavity and a driven component arranged in the light source cavity, the driving component drives the driven component to move along the inner wall of the light source cavity through magnetic attraction, and a moving contact that cooperates with the power contact is arranged on the driven component, and the movement of the driven component controls the moving contact to contact or disconnect with the power contact, and the moving contact is electrically connected to the electrical component. Through the above technical scheme, it is achieved that the lamp body can be replaced without releasing electric sparks to the environment while the lamp holder remains connected to the power supply line.

Description

Technical Field

[0001] The invention relates to the field of explosion-proof special lighting equipment, in particular to an explosion-proof lamp which can be replaced while powered on. Background Art

[0002] Explosion-proof lamps are lighting equipment used in flammable and explosive environments. They are often used in petrochemical plants with flammable and explosive gases, textile plants with a large amount of flammable flying catkins, or flour mills with the possibility of dust explosion. This is because ordinary non-explosion-proof lighting lamps will generate sparks during operation, especially when the lamps are turned on and off, and the location where the sparks are generated and the external environment are not sealed, which is very likely to detonate the surrounding flammable gas and dust.

[0003] Therefore, the explosion-proof lamp is designed with a sealed cavity, and the electrical components are installed in the sealed cavity, and even glue is injected to completely seal it. The entire explosion-proof lamp is connected to the power supply line only through a protruding wire.

[0004] When using this type of explosion-proof lamp in a factory or workshop, it is ideally controlled only by an explosion-proof control cabinet, and each explosion-proof lamp is independently equipped with a switch on the explosion-proof control cabinet. If a certain explosion-proof lamp needs to be replaced, the power supply circuit of the explosion-proof lamp should be disconnected from the explosion-proof control cabinet first, and then the explosion-proof lamp can be disassembled for replacement.

[0005] However, in reality, many factory production lines are designed to use a switch to control multiple explosion-proof lamps in parallel. If any explosion-proof lamp is damaged and needs to be replaced, the entire power supply line needs to be disconnected. However, for some production lines such as textile factories, the disconnection of the entire lighting power supply line will affect production. Summary of the invention

[0006] In view of the shortcomings or defects of the prior art that if the explosion-proof lamp is damaged, the entire power supply bus needs to be powered off to replace it, and the replacement operation affects the production lighting operations in the factory area, the present invention provides an explosion-proof lamp that can be disassembled and installed without disconnecting the power supply bus.

[0007] The explosion-proof lamp comprises a lamp holder electrically connected to a power supply line and a lamp body detachably fixed to the lamp holder; the lamp body is provided with a light source cavity and an electrical cavity, the light source is arranged in the light source cavity, the electrical element is arranged in the electrical cavity; the electrical element is electrically connected to the light source.

[0008] The lamp holder has a plug with electrical contacts on it; the light source cavity has a socket, the plug is inserted into the electrical cavity through the socket, and the plug blocks the socket to seal the electrical cavity; the electrical components are electrically connected to the electrical contacts on the plug through a control system.

[0009] The control system includes a driving component designed outside the light source cavity and a driven component arranged in the light source cavity. The driving component can move along the outer wall of the light source cavity and drive the driven component to move along the inner wall of the light source cavity through magnetic attraction. A moving contact that cooperates with the power contact is arranged on the driven component. The movement of the driven component controls the moving contact to contact or disconnect with the power contact, and the moving contact is electrically connected to the electrical component.

[0010] In some embodiments, the lamp holder and the lamp body are fixedly connected via a flange; a flange seat is formed on the lamp body around the socket, a flange plate is formed on the lamp holder around the plug, the flange plate and the flange seat cooperate with each other, and a sealing structure is provided in the gap between the flange plate and the flange seat.

[0011] In some embodiments, the electrical cavity includes an upper cavity and a lower cavity, the electrical component is disposed in the lower cavity, the driven component is disposed in the upper cavity, and the jack is located on the cavity wall of the upper cavity.

[0012] Sealant is injected into the lower cavity, and the electrical components are buried in the sealant.

[0013] In some embodiments, the light source cavity is composed of a lamp body and a cover body that are snapped together, the lamp body has a recessed structure to form a lower cavity, the cover body has a recessed structure to form an upper cavity, and the via hole is arranged on the cover body; a partition plate is arranged between the upper cavity and the lower cavity, and the edge of the partition plate is embedded in the gap between the lamp body and the cover body; the lamp body and the cover body are fixed by bolts while fixing the partition plate at the same time.

[0014] In some embodiments, the partition plate has a wire hole, one end of the wire is connected to the moving contact, and the other end is connected to the electrical component, and the middle part of the wire passes through the wire hole; and the wire is a flexible wire; a conductor column is pre-embedded on the lamp body, one end of the conductor column extends into the lower cavity and is electrically connected to the electrical component, and the other end extends to the light source cavity and is electrically connected to the light source.

[0015] In some embodiments, the driving component includes an external connecting rod and an external magnet, one end of the external connecting rod is rotatably mounted on the lamp body, and the other end is fixed with the external magnet; the external magnet moves along the outer wall of the electrical cavity of the lamp body; the driven component includes a rotating shaft rotatably mounted in the electrical cavity and an inner connecting rod with one end fixed on the rotating shaft, the other end of the inner connecting rod is fixed with an internal magnet, the inner magnet is facing the external magnet and is driven by the magnetic force of the external magnet to move along the inner wall of the electrical cavity, thereby driving the rotating shaft to rotate; a moving contact is fixed on the rotating shaft, and the moving contact contacts or disengages with the electrical contact as the rotating shaft rotates.

[0016] In some embodiments, one of the inner magnet and the outer magnet is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet and the outer magnet are permanent magnets; the rotation axis and the rotating shaft of the outer connecting rod are coaxially arranged.

[0017] In some embodiments, the driving assembly includes external magnets respectively arranged on both sides of the electrical cavity of the lamp body, and a slot is provided on the outer shell at the electrical cavity position of the lamp body, and the external magnet slides in the slot.

[0018] The driven component includes inner magnets arranged on both sides of the inner wall of the electrical cavity, wherein the two inner magnets are respectively arranged opposite to the two outer magnets and are driven by the magnetic force of the outer magnets to move along the inner wall of the electrical cavity; moving contacts are fixed on the two inner magnets, and the moving contacts contact or disengage with the electrical contacts as the inner magnets move.

[0019] In some embodiments, the two outer magnets are connected and fixed as a whole through an outer connecting rod and move up and down synchronously, and the two inner magnets are fixed as a whole through an inner connecting rod and move synchronously, and the moving contact is fixed on the inner connecting rod.

[0020] One of the inner magnet and the outer magnet is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet and the outer magnet are permanent magnets.

[0021] The explosion-proof box using the above technical solution of the present invention has the following effects:

[0022] Traditional explosion-proof lamps, when the power supply line is energized, will generate sparks when the power supply circuit is connected and disconnected. Since the explosion-proof lamp is in the process of disassembly and installation, the sparks will directly contact the surrounding environment. Therefore, in principle, traditional explosion-proof lamps are not allowed to be disassembled and installed when the power supply line is energized.

[0023] In order to overcome the above situation, the present application designs a method of disconnecting and connecting the power supply circuit while keeping the explosion-proof lamp package in a sealed state.

[0024] In this way, the electric spark generated when the power supply circuit is disconnected will be sealed inside the explosion-proof lamp. Then the explosion-proof lamp is disassembled, and the entire power supply circuit is in a disconnected state.

[0025] Similarly, during installation, first install the explosion-proof lamp in place, until the explosion-proof lamp is completely sealed, and then turn on the power supply circuit from the inside. The electric sparks generated at the moment the circuit is turned on are also sealed inside the explosion-proof lamp.

[0026] The way to control the on and off of the power supply circuit in a closed state is to set up a control system, which includes a driving component set outside the lamp body and a driven component that ultimately controls the on and off of the power supply circuit in the lamp body. The external driving component is operated, and then the driving component is used to directly drive the driven component in the sealed electrical cavity inside the lamp body through the outer shell of the lamp body through the magnetic attraction; the driven component has a moving contact, and when the driven component moves, it will drive the moving contact and the power contact to switch between the on state and the off state.

[0027] When replacing the explosion-proof lamp under the condition that the power supply line is energized, only the lamp body is replaced, and the lamp holder remains connected to the power supply line.

[0028] When disassembling, you only need to operate the driving component first. The driving component will drive the driven component to disconnect the electrical components in the lamp body and the power supply contacts on the lamp holder; thus disconnecting the entire circuit. Then separate the lamp body and the lamp holder, and the entire lamp body is now de-energized. The power supply contacts of the lamp holder carry potential but no effective circuit and current are formed. Similarly, when installing, you only need to install the new lamp body on the lamp holder. During this process, the lamp body and the lamp holder are not connected, and the electrical components of the lamp body remain de-energized; the power supply contacts on the lamp holder also do not contact any other structure, so no electric sparks will be generated. After the lamp body is completely installed on the lamp holder, the power supply contacts, moving contacts and electrical components have been sealed in the electrical cavity. At this time, push the driving component from the outside to drive the internal driven component through the shell of the lamp body to make the moving contacts and power supply contacts contact to form a normal power supply circuit.

[0029] The contact and separation of the electrical contacts and the moving contacts will generate electric sparks, but they are all generated under closed conditions and therefore will not affect external flammable gases and flying catkins.

[0030] Other features and advantages of the present invention will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a structural schematic diagram of an implementation mode of the explosion-proof lamp of the present invention;

[0032] Figure 2 yes Figure 1 Schematic diagram of the lamp body and lamp holder separated.

[0033] Description of Reference Numerals

[0034] 1-lamp body, 1a-lamp body, 1b-cover; 1c-light source cavity, 1d-electrical cavity, 1d1-upper cavity, 1d2-lower cavity, 1e-flange seat;

[0035] 2-lamp holder, 2a-plug, 2b-electrical contact, 2c-flange;

[0036] 3- Control system,

[0037] 3a-driving assembly, 3a1-external connecting rod, 3a2-external magnet,

[0038] 3b-driven component, 3b1-rotating shaft, 3b2-inner connecting rod, 3b3-inner magnet;

[0039] 4-moving contact;

[0040] 5-Electrical components;

[0041] 6- Divider plate. DETAILED DESCRIPTION

[0042] The specific embodiments of the present invention are described in detail below. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0043] In the present invention, unless otherwise stated, the directional words such as "upper" and "lower" usually refer to the orientation in the assembled state. "Inside" and "outside" refer to the inside and outside relative to the outline of each component itself.

[0044] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so as to describe the embodiments of the present invention described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0045] The present invention provides an explosion-proof lamp that can be replaced while powered, comprising a lamp holder 2 electrically connected to a power supply line and a lamp body 1 detachably fixed to the lamp holder 2; the lamp body 1 has a light source cavity 1c and an electrical cavity 1d, the light source is arranged in the light source cavity 1c, and the electrical component 5 is arranged in the electrical cavity 1d; the electrical component 5 is electrically connected to the light source.

[0046] The lamp holder 2 has a plug 2a with electrical contacts 2b. The light source cavity 1c has a socket, and the plug 2a is inserted into the electrical cavity 1d through the socket. The plug 2a blocks the socket and seals the electrical cavity 1d. The electrical component 5 is electrically connected to the electrical contacts on the plug 2a through the control system 3.

[0047] The control system 3 includes a driving component 3a designed on the outside of the light source cavity 1c and a driven component 3b arranged in the light source cavity 1c. The driving component 3a can move along the outer wall of the light source cavity 1c, and drive the driven component 3b to move along the inner wall of the light source cavity 1c through magnetic attraction. A moving contact 4 that cooperates with the power contact 2b is arranged on the driven component 3b. The movement of the driven component 3b controls the moving contact 4 to contact or disconnect with the power contact 2b, and the moving contact 4 is electrically connected to the electrical component 5.

[0048] When traditional explosion-proof lamps need to be replaced, the power supply line must be disconnected. If the power supply line is energized at this time, on the one hand, whether the explosion-proof lamp is disconnected from the power supply line or connected to the power supply line, electric sparks will be released to the external environment. On the other hand, installing and removing the explosion-proof lamp when the power supply line is energized is very dangerous and does not comply with the electrician's operating specifications.

[0049] The explosion-proof lamp of the present application includes two main parts that can be disassembled, namely, a lamp holder 2 and a lamp body 1. When replacing the explosion-proof lamp, the lamp holder 2 will not be replaced, only the lamp body 1 will be replaced. The lamp holder 2 here is not the mounting seat or fixing seat of a traditional explosion-proof lamp. A general mounting seat or fixing seat is not a part of the explosion-proof lamp itself, and the explosion-proof lamp will not affect its core functions of lighting and explosion-proof after being separated from the fixing seat. In the present application, the lamp body 1 and the lamp holder 2 need to be installed and matched before they can be combined into a complete explosion-proof lamp to play the role of explosion-proof and lighting. When the lamp holder 2 is not installed on the electrical cavity 1d where the lamp body 1 is connected to the lamp holder 2, it is in an open and unsealed state. The lamp holder 2 has three main functions: 1. Fix and install the lamp body 1; 2. Supply power to the electrical components 5 in the lamp body 1; 3. Seal the electrical cavity 1d of the lamp body 1.

[0050] When the lamp body 1 is installed on the lamp holder 2, it needs to be electrically connected to the power supply part of the lamp holder 2 to illuminate normally. If the lamp body 1 is connected to the power supply part of the lamp holder 2 before the power supply cavity is sealed and connected to the lamp holder 2, electric sparks will be released directly into the environment. After the lamp body 1 is installed on the lamp holder 2, since the electrical cavity 1d is already closed, the operator can no longer connect the power to the internal wires and other structures from the outside. Similarly, during the installation process, there is operating space to disconnect the wires only after opening the electrical cavity 1d. However, if the electrical cavity 1d is already open when the wires are disconnected, electric sparks will be released directly into the environment.

[0051] In order to resolve the above contradiction, the present application also provides a control system 3. The control system 3 includes a driving component 3a located outside the electrical cavity 1d and a driven component 3b located inside the electrical cavity 1d. The driving component 3a and the driven component 3b are provided with magnets that can attract each other. The movement of the magnet of the external driving component 3a will drive the internal driven component 3b to move. Then a moving contact 4 is provided on the driven component 3b. The moving contact 4 is connected to the power contact 2b (static contact), the power supply circuit of the lamp holder 2 and the lamp body 1 is connected, the moving contact 4 is disconnected from the power contact 2b, and the power supply circuit of the lamp body 1 is disconnected. In this way, the power supply line of the lamp body 1 can be disconnected or connected under sealed conditions, and electric sparks will not spread to the environment. When disassembling the lamp body 1, first use the driving component 3a to control the moving contact 4 to disconnect, and then remove the lamp body 1. When installing the lamp body 1, on the contrary, the lamp body 1 is first installed on the lamp holder 2, and after the electrical cavity 1d is sealed, the driving component 3a drives the driven component 3b to drive the moving contact 4 to contact the power contact 2b to supply power to the light source.

[0052] The lamp body 1 of an explosion-proof lamp is generally formed by aluminum casting, and a few explosion-proof lamps are made of engineering plastics or stainless steel. In this application, since it is necessary to use magnetic force to operate the internal driven component 3b through the shell of the explosion-proof lamp, the material of the part of the lamp body 1 of the explosion-proof lamp where the control system 3 is set is preferably made of aluminum or plastic, which is not easily magnetized. It is further preferred that the entire lamp body 1 is made of the same material for ease of design and production.

[0053] like Figure 1 As shown in the figure, the bottom of the lamp body 1 is concave and covered with a light-transmitting plate to form a sealed light source cavity 1c, and the light source is generally an LED lamp panel arranged in the light source cavity 1c. The arrangement of the light source is no different from that of ordinary explosion-proof lamps in the prior art, and will not be repeated in this article.

[0054] The lamp body 1 and the lamp holder 2 are detachably connected, and the connection method can be through threaded matching, or fixed by bolts, or fixed by snaps. In the design of the present invention, the electrical cavity 1d is an open design, and the lamp holder 2 is required to seal the electrical cavity 1d. Therefore, the lamp body 1 needs to be tightly installed on the lamp holder 2. Figure 1 As shown, the lamp holder 2 is fixedly connected to the lamp body 1 through a flange; a flange seat 1e is formed on the lamp body 1 around the insertion hole, and a flange plate 2c is formed on the lamp holder 2 around the plug 2a, and the flange plate 2c and the flange seat 1e are matched with each other, and a sealing structure is provided in the gap between the flange plate 2c and the flange seat 1e. At the same time, the portion of the lamp holder 2 inserted into the electrical cavity 1d is gap-matched with the opening of the electrical cavity 1d of the lamp body 1. A sealing ring is provided between the flange seat 1e of the lamp body 1 and the flange plate 2c of the lamp holder 2.

[0055] The electrical cavity 1d includes an upper cavity 1d1 and a lower cavity 1d2, the electrical component 5 is arranged in the lower cavity 1d2, and the plug 2a and the control system 3 are arranged in the upper cavity 1d1; since the electrical component 5 does not need to be moved, a sealant is injected into the lower cavity 1d2 to bury the electrical component 5 in the sealant. Figure 1 As shown, the light source cavity 1c is composed of a lamp body 1a and a cover body 1b that are fastened together. The lamp body 1a has a recessed structure to form a lower cavity 1d2, and the cover body 1b has a recessed structure to form an upper cavity 1d1. The through hole is arranged on the cover body 1b; a partition plate 6 is arranged between the upper cavity 1d1 and the lower cavity 1d2, and the edge of the partition plate 6 is embedded in the gap between the lamp body 1 and the cover body 1b; the lamp body 1 and the cover body 1b are fixed by bolts and the partition plate 6 is fixed at the same time.

[0056] The partition plate 6 is provided with a wire hole, one end of the wire is connected to the moving contact 4, and the other end is connected to the electrical component 5. The middle of the wire passes through the wire hole; and the wire is a flexible wire. A conductor column is pre-buried on the lamp body 1a, one end of the conductor column extends into the lower cavity 1d2 and is electrically connected to the electrical component 5, and the other end extends to the light source cavity 1c and is electrically connected to the light source.

[0057] The lamp holder 2 is a composite material, and the material of its outer ring is the same as the outer shell material of the lamp body 1, preferably aluminum. The flange 2c is formed on the outer ring, and the inner core of the outer ring is made of an insulating material such as ceramic or bakelite, and the inner core has a conductor structure.

[0058] The present application introduces two specific embodiments of two drive components 3a below.

[0059] Embodiment 1:

[0060] like Figure 1 and Figure 2 As shown, the driving component 3a includes an outer connecting rod 3a1 and an outer magnet 3a2, one end of the outer connecting rod 3a1 is rotatably mounted on the lamp body 1, and the other end is fixed with the outer magnet 3a2; the outer magnet 3a2 moves along the outer wall of the electrical cavity 1d of the lamp body 1; the driven component 3b includes a rotating shaft 3b1 rotatably mounted in the electrical cavity 1d and an inner connecting rod 3b2 with one end fixed on the rotating shaft 3b1, the other end of the inner connecting rod 3b2 is fixed with an inner magnet 3b3, the inner magnet 3b3 is facing the outer magnet 3a2 and is driven by the magnetic force of the external magnet 3a2 to move along the inner wall of the electrical cavity 1d, thereby driving the rotating shaft 3b1 to rotate; a moving contact 4 is fixed on the rotating shaft 3b1, and the moving contact 4 contacts or disconnects with the electrical contact 2b as the rotating shaft 3b1 rotates.

[0061] The number of moving contacts 4 is the same as the number of power supply lines, and the moving contacts 4 correspond to the power contact 2b one by one. The moving contact 4 is driven by the rotating shaft 3b1, and its movement path is in a circular arc and rotates toward the power contact 2b. Specifically, the power contact 2b has a trumpet-shaped opening facing the moving contact 4, and there are two elastic copper bars on the left and right at the point of the trumpet-shaped opening, and the copper bars are connected to one of the boxes of the power supply line. The moving contact 4 that cooperates with the power contact 2b is knife-shaped similar to a knife switch. The side of the moving contact 4 can be inserted into the trumpet mouth along the trumpet mouth. The two copper bars on the left and right will be pushed and deformed by the moving contact 4 to clamp the moving contact 4, keeping the copper bars always in contact with the moving contact 4 to ensure stable power supply.

[0062] One of the inner magnet 3b3 and the outer magnet 3a2 is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet 3b3 and the outer magnet 3a2 are permanent magnets; the rotation axis of the outer connecting rod 3a1 is coaxially arranged with the rotating shaft 3b1.

[0063] In this embodiment, an inner mounting seat for mounting the rotating shaft 3b1 is formed on the partition plate 6, and the rotating shaft 3b1 is rotatably mounted on the mounting seat. At the same time, the outer shell of the lamp body 1 also has an outer mounting seat, and one end of the outer connecting rod 3a1 is rotatably mounted on the outer mounting seat.

[0064] Furthermore, the motion trajectories of both the external magnet 3a2 and the internal magnet 3b3 are circular arcs. The motion trajectories of the external magnet 3a2 and the internal magnet 3b3 are processed on the outer shell of the lamp body 1 at the corresponding positions of the motion trajectories of the external magnet 3a2 and the internal magnet 3b3, and the trajectories are kept flat, and the external magnet 3a2 and the internal magnet 3b3 are always in contact with the outer shell.

[0065] Embodiment 2:

[0066] The driving assembly 3a includes external magnets 3a2 respectively arranged on both sides of the electrical cavity 1d of the lamp body 1. The outer shell at the electrical cavity 1d of the lamp body 1 is provided with a slot, and the external magnets 3a2 slide in the slot.

[0067] The driven component 3b includes internal magnets 3b3 arranged on both sides of the inner wall of the electrical cavity 1d, and the two internal magnets 3b3 are respectively arranged opposite to the two external magnets 3a2 and are driven by the magnetic force of the external magnets 3a2 to move along the inner wall of the electrical cavity 1d; the moving contact 4 is fixed on the two internal magnets 3b3, and the moving contact 4 moves with the internal magnets 3b3 to contact or disconnect with the power contact 2b.

[0068] The two outer magnets 3a2 are connected and fixed as a whole through the outer connecting rod 3a1 to move up and down synchronously, and the two inner magnets 3b3 are fixed as a whole through the inner connecting rod 3b2 to move synchronously, and the moving contact 4 is fixed on the inner connecting rod 3b2;

[0069] One of the inner magnet 3b3 and the outer magnet 3a2 is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet 3b3 and the outer magnet 3a2 are permanent magnets.

[0070] Compared with the embodiment 1, the disadvantage of the embodiment 2 is that the driven component 3b needs to slide, which may cause jamming, and the movement is not as smooth as the rotation in the embodiment 1. However, in this embodiment, the power contact 2b is safer. Specifically, in this embodiment, the moving contact 4 is a copper column, and the corresponding power contact 2b is a power socket formed at the bottom of the lamp holder 2. The opening of the power socket is in a trumpet shape. The copper terminal for power supply is located at the bottom of the power socket, and the power terminal is elastic, and multiple power terminals are arranged around the side wall of the power socket.

[0071] When the driven component 3b moves upward, it drives the copper column to be inserted into the power socket and contact the power terminal, and pushes the power terminal to deform and press on the side wall of the copper column.

[0072] With this arrangement, when the lamp body 1 is removed, the live part of the lamp holder 2, that is, the power terminal, is located at the bottom of the power socket, thereby minimizing the possibility of the live part contacting surrounding objects and personnel.

[0073] The preferred embodiments of the present invention are described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, a variety of simple modifications can be made to the technical solution of the present invention, and these simple modifications all belong to the protection scope of the present invention.

[0074] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not further describe various possible combinations.

[0075] In addition, various embodiments of the present invention may be arbitrarily combined, and as long as they do not violate the concept of the present invention, they should also be regarded as the contents disclosed by the present invention.

Claims

1. Explosion-proof lamp, characterized in that, The invention comprises a lamp holder (2) electrically connected to a power supply line and a lamp body (1) detachably fixed to the lamp holder (2); the lamp body (1) is provided with a light source cavity (1c) and an electrical cavity (1d); a light source is arranged in the light source cavity (1c); an electrical component (5) is arranged in the electrical cavity (1d); and the electrical component (5) is electrically connected to the light source; The lamp holder (2) is provided with a plug (2a), the light source cavity (1c) is provided with a socket, the plug (2a) is inserted into the electrical cavity (1d) through the socket, and the plug (2a) blocks the socket to seal the electrical cavity (1d); the plug (2a) is provided with an electrical contact (2b), and the electrical component (5) is electrically connected to the electrical contact (2b) on the plug (2a) through the control system (3); The control system (3) comprises a driving component (3a) arranged outside the light source cavity (1c) and a driven component (3b) arranged inside the light source cavity (1c); the driving component (3a) is capable of moving along the outer wall of the light source cavity (1c) and driving the driven component (3b) to move along the inner wall of the light source cavity (1c) through magnetic attraction; a moving contact (4) cooperating with the electrical contact (2b) is arranged on the driven component (3b); the movement of the driven component (3b) controls the moving contact (4) to contact or disconnect with the electrical contact (2b); and the moving contact (4) is electrically connected to the electrical element (5).

2. The explosion-proof lamp according to claim 1, characterized in that: The lamp holder (2) is fixedly connected to the lamp body (1) via a flange; A flange seat (1e) is formed on the lamp body (1) around the insertion hole, and a flange plate (2c) is formed on the lamp holder (2) around the plug (2a). The flange plate (2c) and the flange seat (1e) cooperate with each other, and a sealing structure is provided in the gap between the flange plate (2c) and the flange seat (1e).

3. The explosion-proof lamp according to claim 1, characterized in that: The electrical cavity (1d) comprises an upper cavity (1d1) and a lower cavity (1d2), the electrical element (5) is arranged in the lower cavity (1d2), and the driven component (3b) is arranged in the upper cavity (1d1); The jack is located on the cavity wall of the upper cavity (1d1); Sealant is injected into the lower cavity (1d2), and the electrical component (5) is buried in the sealant.

4. The explosion-proof lamp according to claim 3, characterized in that: The light source cavity (1c) is composed of a lamp body (1a) and a cover body (1b) which are buckled together; the lamp body (1a) has a recessed structure to form a lower cavity (1d2); the cover body (1b) has a recessed structure to form an upper cavity (1d1); and a socket that cooperates with the plug (2a) is provided on the cover body (1b); A partition plate (6) is arranged between the upper cavity (1d1) and the lower cavity (1d2), and the edge of the partition plate (6) is embedded in the gap between the lamp body (1) and the cover body (1b); the lamp body (1) and the cover body (1b) are fixed by bolts, and the partition plate (6) is also fixed at the same time.

5. The explosion-proof lamp according to claim 4, characterized in that: The partition plate (6) is provided with a wire hole, one end of the wire is connected to the moving contact (4), and the other end is connected to the electrical element (5), and the middle of the wire passes through the wire hole; and the wire is a flexible wire; A conductor column is pre-buried on the lamp body (1a), one end of the conductor column extends into the lower cavity (1d2) and is electrically connected to the electrical element (5), and the other end extends into the light source cavity (1c) and is electrically connected to the light source.

6. The explosion-proof lamp according to claim 1, characterized in that: The driving assembly (3a) comprises an external connecting rod (3a1) and an external magnet (3a2); one end of the external connecting rod (3a1) is rotatably mounted on the lamp body (1), and the other end is fixed to the external magnet (3a2); the external magnet (3a2) moves along the outer wall of the electrical cavity (1d); The driven component (3b) comprises a rotating shaft (3b1) rotatably mounted in an electrical cavity (1d) and an inner connecting rod (3b2) with one end fixed to the rotating shaft (3b1); an inner magnet (3b3) is fixed to the other end of the inner connecting rod (3b2); the inner magnet (3b3) is facing the outer magnet (3a2) and is driven by the magnetic force of the outer magnet (3a2) to move along the inner wall of the electrical cavity (1d), thereby driving the rotating shaft (3b1) to rotate; a moving contact (4) is fixed to the rotating shaft (3b1); the moving contact (4) contacts or disconnects with the electrical contact (2b) as the rotating shaft (3b1) rotates.

7. The explosion-proof lamp according to claim 6, characterized in that: One of the inner magnet (3b3) and the outer magnet (3a2) is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet (3b3) and the outer magnet (3a2) are permanent magnets; The rotation axis of the outer connecting rod (3a1) and the rotating shaft (3b1) are coaxially arranged.

8. The explosion-proof lamp according to claim 1, characterized in that: The driving assembly (3a) comprises external magnets (3a2) respectively arranged on both sides of the electrical cavity (1d) of the lamp body (1); a slot is provided on the outer shell at the electrical cavity (1d) of the lamp body (1), and the external magnets (3a2) slide in the slot; The driven component (3b) comprises inner magnets (3b3) arranged on both sides of the inner wall of the electrical cavity (1d), wherein the two inner magnets (3b3) are respectively arranged opposite to the two outer magnets (3a2) and are driven by the magnetic force of the outer magnets (3a2) to move along the inner wall of the electrical cavity (1d); a moving contact (4) is fixed on the two inner magnets (3b3), and the moving contact (4) moves with the inner magnets (3b3) to contact or disconnect with the electrical contact (2b).

9. The explosion-proof lamp according to claim 8, characterized in that: The two outer magnets (3a2) are connected and fixed as a whole through an outer connecting rod (3a1) and move up and down synchronously; the two inner magnets (3b3) are fixed as a whole through an inner connecting rod (3b2) and move synchronously; the moving contact (4) is fixed on the inner connecting rod (3b2); One of the inner magnet (3b3) and the outer magnet (3a2) is a permanent magnet and the other is a ferromagnetic material; or both the inner magnet (3b3) and the outer magnet (3a2) are permanent magnets.

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