High-strength anti-explosion LED floodlight

Abstract

According to the high-strength anti-explosion LED floodlight applied to the field of LED floodlights, an active bumper can be matched with a servo motor, when a lamp body is about to be subjected to external collision, a plurality of transparent shielding pieces are driven to rotate synchronously and move in opposite directions with an impact object from the outside, active anti-collision treatment is carried out, and the preliminary anti-collision protection effect is achieved; in the lifting process of the transparent shielding sheet, the transparent shielding sheet and the other transparent shielding sheet in the group form a V-shaped structure under the influence of the constraint effect of the traction cable, an impact object is clamped in the V-shaped structure, the impulse effect of the impact object is further weakened, and therefore the overall anti-explosion protection effect of the lamp body is enhanced, and a driving motor, a gear and a toothed plate are matched, so that the anti-explosion effect of the lamp body is improved. And the camera adjusts the effective tightening length of the traction cable, so that the transparent shielding sheet is controlled to quickly form a vertical fitting state to resist the impact of a large-size impact object.

Description

Technical Field

[0001] The invention relates to an explosion-proof LED floodlight, in particular to a high-intensity explosion-proof LED floodlight applied in the field of LED floodlights. Background Art

[0002] LED explosion-proof floodlights are lamps that take various specific measures to prevent the ignition of surrounding explosive mixtures such as explosive gas environments, explosive dust environments, and gas. They are widely used in petroleum, chemical companies and other industries. They are used in explosion-proof areas where flammable and explosive dangerous gases exist. They can provide floodlighting for customers' on-site night construction operations.

[0003] The specification of Chinese invention patent CN202010991293.X discloses a high-efficiency protective LED lamp assembly, in which a protective shell is arranged on the outside of the lamp head, and an outer protective fence is arranged on the outside of the protective shell, adopting double protection to improve the protection level. When impacted by external force, it can avoid direct contact of destructive force with the lamp head, thereby improving the safety and service life of use. Moreover, the setting of the outer protective fence and the protective shell can improve the aesthetics of the lamp, expand the range of the use environment, and improve the application field of the lamp.

[0004] When the existing LED explosion-proof lamp is in use, a guardrail is usually added to the outer shell surface of the lamp to provide anti-collision protection. In order to protect the bulb, the guardrail is usually placed in front of the bulb, which will block the light emitted by the bulb. In addition, the larger protective gap has little protective effect against some small-sized stones, and the guardrail is a passive anti-collision design, so the anti-collision protection effect is limited. Summary of the invention

[0005] In view of the above-mentioned prior art, the technical problem to be solved by the present invention is to provide an active anti-collision protection for the LED explosion-proof floodlight without blocking the illumination light, and to make corresponding anti-collision treatment according to the size of the impacting object.

[0006] In order to solve the above problems, the present invention provides a high-intensity explosion-proof LED floodlight, comprising a lamp body mounted on a bracket, a matrix-arranged LED bulb installed inside the lamp body, a radiator installed on the back of the lamp body, a servo motor installed on the front of the lamp body near the top, a cross bar connected to the output end of the servo motor, an active anti-collision device installed in front of the lamp body, the active anti-collision device comprising a group of two transparent shielding plates, and a U-shaped pulling rope connected to the back of the two transparent shielding plates in each group near the top, and the middle position of the pulling rope is fixedly connected to the surface of the lamp body, and the top and bottom ends of the transparent shielding plates are both connected to coupling rods; A strip groove is provided at the bottom of the crossbar, a counterweight rod with a rubber sleeve on the surface is arranged below the transparent cover, a transverse groove is provided on the top surface of the counterweight rod, and the ends of the coupling rods at both ends of the same transparent cover are movably connected in the strip groove and the transverse groove respectively; An image collector is installed on the surface of the lamp body, and the image collector is connected with the servo motor signal.

[0007] In the above-mentioned high-intensity explosion-proof LED floodlight, the active anti-collision device can cooperate with the servo motor to perform active anti-collision processing when the lamp body is about to encounter an external impact, and cooperate with the transparent cover in a V-shaped tightening shape to clamp and restrain the impact object to reduce the impulse, thereby further strengthening the explosion-proof protection.

[0008] As a further improvement of the present application, a plurality of partitions are provided inside the strip groove, and a reset elastic member is connected to the surface of the partition, and a shaft sleeve is sleeved on the outer side of the coupling rod at the top of each transparent cover plate, and the tail end of the reset elastic member is connected to the surface of the shaft sleeve.

[0009] As a further improvement of the present application, the transparent mask is made of a high-strength transparent material, and the surface of the transparent mask is coated with a transparent insulating heat dissipation paint.

[0010] As a further improvement of the present application, the horizontal distance between the pulling cable in the initial state and the transparent mask in the vertical state is less than half of the length of the pulling cable itself.

[0011] As a further improvement of the present application, the pulling rope is made of a non-elastic material, and the lowest point of the pulling rope in a drooping state is located above the uppermost LED bulb in the lamp body.

[0012] As a further improvement of the present application, it also includes an explosion-proof protection system, which includes a processor installed on the lamp body, and the processor is connected to a collision detection module, an active execution module and an analysis module. The collision detection module is connected to the ultrasonic ranging sensor signal installed on the lamp body, and is used to monitor the speed of an object impacting the lamp body during the operation of the lamp body, and determine whether there is a collision accident. The analysis module is connected to the image collector signal, and is used to analyze the size of the impact object. The active execution module is connected to the servo motor signal, and is used to start the active anti-collision device.

[0013] As another improvement of the present application, the connection method between the pull cable and the lamp body is replaced by a movable connection, the middle position of the pull cable is located on the inner side of the lamp body, a movable cavity is provided inside the lamp body, a support frame corresponding to the pull cable is installed inside the movable cavity, and the surface of the support frame is fixedly connected to the middle position of the pull cable, a tooth plate is connected to the surface of the support frame, a driving motor is installed inside the movable cavity, and the output end of the driving Ada is connected to a gear meshing with the tooth plate.

[0014] As another improved supplement of the present application, the output torque of the servo motor is not greater than the output torque of the drive motor, and the drive motor is signal-connected to the analysis module and the active execution module.

[0015] As another improved supplement of the present application, a small weight ball is connected to the surface of the connection position between the pulling cable and the transparent cover, and the weight of the small weight ball is greater than the weight of the pulling cable itself.

[0016] To summarize, the present application can cooperate with the servo motor through the active anti-collision device, and when the lamp body is about to encounter an external impact, drive multiple transparent shields to rotate synchronously, move towards the impact object from the outside, perform active anti-collision processing, and play a preliminary anti-collision protection effect. In the process of lifting the transparent shield, affected by the restraining effect of the pull cable, the transparent shield and another transparent shield in the group form a V-shaped structure, clamping the impact object inside, further weakening the impulse effect of the impact object, thereby enhancing the overall explosion-proof protection effect of the lamp body, and cooperating with the drive motor, gears and toothed plates, the camera adjusts the effective tightening length of the pull cable, so that the transparent shield can be controlled to quickly form a vertical fitting state to resist the impact of large-sized impact objects. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the first implementation method of the present application; Figure 2 This is an installation diagram of a crossbar and an active anti-collision device according to a first embodiment of the present application; Figure 3 This is a state diagram of the active collision avoidance device being activated in the first embodiment of the present application; Figure 4 This is a diagram of the transparent cover sheet of the first embodiment of the present application being in a V-shaped tightened state under the action of the pulling rope; Figure 5 This is a state diagram of the first embodiment of the present application, in which a small portion of the impact object is squeezed outward when the pulling rope is tightened; Figure 6 This is an installation diagram of the strip groove in the cross bar and the resetting elastic member of the first embodiment of the present application; Figure 7 This is an installation diagram of a toothed plate, a gear and a drive motor according to a second embodiment of the present application; Figure 8 This is a schematic diagram of the second embodiment of the present application in which the pulling cable is retracted into the lamp body; Fig. 9 This is a diagram of the transparent mask in the second embodiment of the present application when it is vertically attached.

[0018] Description of the numbers in the figure: 1. Lamp body; 2. Active anti-collision device; 21. Transparent cover; 22. Pull rope; 23. Coupling rod; 24. Reset elastic member; 231. Bushing; 3. Servo motor; 31. Cross bar; 4. Radiator; 5. Bracket; 6. Tooth plate; 7. Gear; 8. Drive motor. DETAILED DESCRIPTION

[0019] Two implementation modes of the present application are described in detail below with reference to the accompanying drawings.

[0020] The first implementation method: Figure 1-2 A high-intensity explosion-proof LED floodlight is shown, comprising a lamp body 1 mounted on a bracket 5, wherein a matrix-arranged LED bulb is mounted inside the lamp body 1, a heat sink 4 is mounted on the back of the lamp body 1, a servo motor 3 is mounted on the front of the lamp body 1 near the top, a cross bar 31 is connected to the output end of the servo motor 3, an active anti-collision device 2 is mounted in front of the lamp body 1, the active anti-collision device 2 comprises a group of two transparent masks 21, and a U-shaped pulling rope 22 is connected to the back of the two transparent masks 21 of each group near the top, and the middle position of the pulling rope 22 is fixedly connected to the surface of the lamp body 1, and the top and bottom ends of the transparent masks 21 are both connected to coupling rods 23; The bottom of the crossbar 31 is provided with a strip groove, a counterweight rod with a rubber sleeve on the surface is arranged below the transparent cover 21, and a transverse groove is provided on the top surface of the counterweight rod. The ends of the coupling rods 23 at both ends of the same transparent cover 21 are movably connected in the strip groove and the transverse groove respectively. An image collector is installed on the surface of the lamp body 1 , and the image collector is connected to the servo motor 3 via a signal.

[0021] Specifically, when the lamp body 1 works normally, the light emitted by the internal bulb can be emitted normally through the transparent shielding sheet 21 without having a shielding effect; Figure 3 As shown, when encountering an external impact, the servo motor 3 is started to drive the crossbar 31 to rotate, and then drive the multiple transparent shielding sheets 21 to rotate synchronously, and move towards the impacting object from the outside, so that the impacting object can be knocked away from the surface of the lamp body 1, and a preliminary anti-collision protection effect is achieved. In addition, during the lifting process of the transparent shielding sheet 21, under the influence of the restraining effect of the pulling rope 22, the transparent shielding sheet 21 will gradually change from the original horizontal placement state to an inclined placement state, and then form a V-shaped structure with another transparent shielding sheet 21 in the group, clamping the impacting object inside, and further weakening the impulse effect of the impacting object (such as Figure 4As shown in the figure), a second level of protection is provided for the lamp body 1 (during the lifting process of the transparent cover 21, the pulling rope 22 which was originally in a naturally drooping state is gradually tightened, and pulls the transparent cover 21 in the opposite direction, but at this time the transparent cover 21 is lifted by the cross bar 31, so the coupling rod 23 moves laterally and rotates to a certain extent in the strip groove and the cross groove, so that the transparent cover 21 is placed in an inclined state), thereby enhancing the overall explosion-proof protection effect of the lamp body 1.

[0022] Figure 6 It is shown that a plurality of partitions are provided inside the strip groove, and a reset elastic member 24 is connected to the surface of the partition. A shaft sleeve 231 is sleeved on the outer side of the coupling rod 23 at the top end of each transparent cover 21, and the tail end of the reset elastic member 24 is connected to the surface of the shaft sleeve 231.

[0023] Specifically, after the pulling rope 22 is tightened, it can drive the shaft sleeve 231 and the inner coupling rod 23 to move horizontally, thereby driving the two transparent covers 21 in each group to form a V-shaped structure. When the transparent covers 21 need to be reset later, the servo motor 3 drives the cross bar 31 to reset, and the reset elastic member 24 (a spring member is used in this embodiment, and other elastic structures can also be used) drives the shaft sleeve 231 and the inner coupling rod 23 to move horizontally and reset to the original placement state, thereby driving the transparent covers 21 to reset (the coupling rod 23 is a reset shaft structure, which can achieve self-reset of the rotation angle).

[0024] The transparent mask 21 is made of a high-strength transparent material, and the surface of the transparent mask 21 is coated with a transparent insulating heat dissipation paint.

[0025] Specifically, the transparent mask 21 is a transparent material with good light transmittance, and will not block the normal diffusion of the LED explosion-proof floodlight light. The transparent insulating heat dissipation paint adopts high-temperature cross-linked resin and ceramic compound slurry, and the resin and the compound have a high degree of fusion, and the transparency can reach 95% transparency. It will not cover the color and transparency of the object when it is painted on the surface of the object. Since the surface of the transparent mask 21 is relatively smooth, when the two transparent masks 21 in each group are clamped in a V shape, as the V shape is tightened, a small part of the clamped impact object can be squeezed outward, thereby avoiding damage to the transparent mask 21 caused by excessive clamping (such as Figure 6 as shown).

[0026] The horizontal distance between the pull rope 22 in the initial state and the vertical transparent cover 21 is less than half of the length of the pull rope 22 itself. The pull rope 22 is made of non-elastic material. The lowest point of the pull rope 22 in the drooping state is located above the topmost LED bulb in the lamp body 1.

[0027] Specifically, the length of the pulling rope 22 is designed so that the tail end of the pulling rope 22 is in a naturally drooping state in the initial state, and does not have a certain tightening space, so that the transparent cover 21 will be tightened in a V shape only after it is lifted to a certain distance (so that there is a certain gap with the surface of the light bulb, there is a buffer distance, and the protection effect of the light bulb is enhanced); In addition, when the pull rope 22 is in a naturally drooping state, there is no high overlap between the bottom end and the light bulb, thereby reducing the shielding effect of the pull rope 22 on the light emitted by the light bulb.

[0028] The explosion-proof protection system also includes a processor installed on the lamp body 1, and the processor is connected to a collision detection module, an active execution module and an analysis module. The collision detection module is connected to the ultrasonic ranging sensor signal installed on the lamp body 1, and is used to monitor the speed of an object hitting the lamp body 1 during the operation of the lamp body 1, and determine whether there is a collision accident. The analysis module is connected to the image collector signal and is used to analyze the size of the collision object. The active execution module is connected to the servo motor 3 signal and is used to start the active anti-collision device 2.

[0029] Specifically, the image collector and the ultrasonic ranging sensor are used to perform a general speed measurement process on the moving object (the distance between the impact object and the lamp body 1 at time T1 is L1, and the distance between the impact object and the lamp body 1 at time T2 is L2, speed: V = (L1-L2) / (T2-T1)). By judging whether V is greater than the set value, it is judged whether the object has the possibility of colliding with the lamp body 1.

[0030] The second implementation method: Figure 7 It is shown that the connection mode between the pulling cable 22 and the lamp body 1 is replaced by a movable connection, the middle position of the pulling cable 22 is located on the inner side of the lamp body 1, a movable cavity is provided inside the lamp body 1, a support frame corresponding to the pulling cable 22 is installed inside the movable cavity, and the surface of the support frame is fixedly connected to the middle position of the pulling cable 22, a tooth plate 6 is connected to the surface of the support frame, a driving motor 8 is installed inside the movable cavity, and the output end of the driving motor 8 is connected to a gear 7 meshing with the tooth plate 6.

[0031] The output torque of the servo motor 3 is not greater than the output torque of the drive motor 8 , and the drive motor 8 is signal-connected with the analysis module and the active execution module.

[0032] A small weight ball is connected to the surface of the connection position between the pulling rope 22 and the transparent cover 21 , and the weight of the small weight ball is greater than the weight of the pulling rope 22 itself.

[0033] Different from the first embodiment, this embodiment is designed for a larger impact object, and when it is difficult for the two transparent shielding sheets 21 to clamp and wrap the impact object through V-shaped clamping, the transparent shielding sheet 21 should not be too thick to ensure the light transmission effect, so as to avoid being easily broken. Therefore, an improvement is made to address this problem.

[0034] Specifically, when the impact object is large in size, the driving motor 8 is started to drive the gear 7 to rotate, thereby driving the toothed plate 6 to move toward the back side of the lamp body 1, thereby driving part of the pulling cable 22 to be stored inside the lamp body 1, and then the length remaining outside the lamp body 1 is reduced (such as Figure 8 As shown in the figure, when the servo motor 3 is subsequently started to drive the cross bar 31 and the transparent cover 21 to rise, the tightening time of the transparent cover 21 is shortened (because the effective length left by the pull rope 22 for tightening is shortened), and the transparent cover 21 is quickly tightened and forms a vertically placed fitting state (as shown in the figure). Fig. 9 As shown), it is used to deal with the impact of a larger impact object (in this case, the impact object is larger in size and it is difficult to pass through the gap of the transparent cover 21 to reach the surface of the lamp body 1 to impact). In this process, the output torque of the servo motor 3 is not greater than that of the drive motor 8, so that when the servo motor 3 drives the transparent cover 21 to rotate and lift, it will not affect the support frame and the toothed plate 6 in the restrained state driven by the drive motor 8; In addition, when the length of the pulling rope 22 pulled into the lamp body 1 needs to be released to the outside of the lamp body 1, the driving motor 8 needs to be started in reverse and the weight ball is used to allow the released length of the pulling rope 22 to return to the outside of the lamp body 1.

[0035] In summary, the present application can cooperate with the servo motor 3 through the active anti-collision device 2, and when the lamp body 1 is about to encounter an external impact, drive multiple transparent shielding plates 21 to rotate synchronously, move towards the impact object from the outside, perform active anti-collision processing, and play a preliminary anti-collision protection effect. In the process of lifting the transparent shielding plate 21, affected by the restraining effect of the pulling rope 22, the transparent shielding plate 21 and another transparent shielding plate 21 in the group form a V-shaped structure, clamping the impact object inside, further weakening the impulse effect of the impact object, thereby enhancing the overall explosion-proof protection effect of the lamp body 1, and cooperating with the driving motor 8 and the gear 7 and the tooth plate 6, the camera adjusts the effective tightening length of the pulling rope 22, so that the transparent shielding plate 21 can be controlled to quickly form a vertical fitting state to resist the impact of large-sized impact objects.

[0036] In view of current practical needs, the above-mentioned implementation mode adopted in this application is not limited to the scope of protection. Various changes made within the knowledge scope of technical personnel in this field without departing from the concept of this application still fall within the scope of protection of the present invention.

Claims

1. A high-intensity explosion-proof LED floodlight, comprising a lamp body (1) mounted on a bracket (5), wherein the interior of the lamp body (1) is mounted with LED bulbs arranged in a matrix, characterized in that: A heat sink (4) is installed on the back of the lamp body (1), a servo motor (3) is installed on the front of the lamp body (1) near the top, the output end of the servo motor (3) is connected to a cross bar (31), and an active anti-collision device (2) is installed in front of the lamp body (1), the active anti-collision device (2) comprises a group of two transparent shielding plates (21), and the back of the two transparent shielding plates (21) in each group is connected to a U-shaped pulling rope (22) near the top, and the middle position of the pulling rope (22) is fixedly connected to the surface of the lamp body (1), and the top and bottom ends of the transparent shielding plates (21) are both connected to coupling rods (23); The bottom of the cross bar (31) is provided with a strip groove, a counterweight rod with a rubber sleeve on the surface is arranged below the transparent cover (21), a transverse groove is provided on the top surface of the counterweight rod, and the ends of the coupling rod (23) at both ends of the same transparent cover (21) are movably connected in the strip groove and the transverse groove respectively; An image collector is installed on the surface of the lamp body (1), and the image collector is signal-connected to the servo motor (3).

2. A high-intensity explosion-proof LED floodlight according to claim 1, characterized in that: A plurality of partitions are provided inside the strip grooves, and a reset elastic member (24) is connected to the surface of the partition. A shaft sleeve (231) is sleeved on the outer side of the coupling rod (23) at the top end of each transparent cover sheet (21), and the rear end of the reset elastic member (24) is connected to the surface of the shaft sleeve (231).

3. A high-intensity explosion-proof LED floodlight according to claim 1, characterized in that: The transparent mask (21) is made of a high-strength transparent material, and the surface of the transparent mask (21) is coated with a transparent insulating heat-dissipating paint.

4. A high-intensity explosion-proof LED floodlight according to claim 1, characterized in that: The horizontal distance between the pulling rope (22) in the initial state and the transparent cover sheet (21) in the vertical state is less than half the length of the pulling rope (22) itself.

5. A high-intensity explosion-proof LED floodlight according to claim 1, characterized in that: The pulling rope (22) is made of a non-elastic material, and the lowest point of the pulling rope (22) in a drooping state is located above the topmost LED bulb in the lamp body (1).

6. A high-intensity explosion-proof LED floodlight according to claim 1, characterized in that: The invention also comprises an explosion-proof protection system, the explosion-proof protection system comprising a processor mounted on the lamp body (1), the processor being connected to a collision detection module, an active execution module and an analysis module, the collision detection module being connected to an ultrasonic distance measuring sensor signal mounted on the lamp body (1) and used to monitor the speed of an object colliding with the lamp body (1) during operation of the lamp body (1) and to determine whether a collision accident exists, the analysis module being connected to an image collector signal and used to analyze the size of the collision object, and the active execution module being connected to a servo motor (3) signal and used to start the active collision avoider (2).

7. A high-intensity explosion-proof LED floodlight according to claim 6, characterized in that: The connection mode between the pulling cable (22) and the lamp body (1) is replaced by a movable connection, the middle position of the pulling cable (22) is located on the inner side of the lamp body (1), a movable cavity is provided inside the lamp body (1), a support frame corresponding to the pulling cable (22) is installed inside the movable cavity, and the surface of the support frame is fixedly connected to the middle position of the pulling cable (22), the surface of the support frame is connected to a toothed plate (6), a driving motor (8) is installed inside the movable cavity, and the output end of the driving motor (8) is connected to a gear (7) meshing with the toothed plate (6).

8. A high-intensity explosion-proof LED floodlight according to claim 7, characterized in that: The output torque of the servo motor (3) is not greater than the output torque of the drive motor (8), and the drive motor (8) is signal-connected to the analysis module and the active execution module.

9. A high-intensity explosion-proof LED floodlight according to claim 8, characterized in that: A small weight ball is connected to the surface of the connection position between the pulling rope (22) and the transparent cover sheet (21), and the weight of the small weight ball is greater than the weight of the pulling rope (22) itself.

Images