A fire emergency lighting lamp with multi-angle adjustable lamp head direction

Abstract

This invention relates to the field of novel lighting technology, specifically to a fire emergency lighting fixture with a multi-angle adjustable lamp head direction. It includes a locking assembly comprising a locking screw rotatably inserted through the center of a U-shaped block. A support ring is fitted onto the locking screw, and the support ring has several elastic pawls evenly arranged circumferentially. Each of the elastic pawls has a damping protrusion fixedly provided on its side near the U-shaped block. This invention ensures that the support ring remains in contact with the U-shaped block under the pressure of the clamping ring, while the elastic pawls around the support ring transmit pressure to the U-shaped block through the damping protrusions. Even after the locking screw is loosened, elastic pressure is still applied to the U-shaped block, preventing the U-shaped block from being completely free after the locking screw is loosened. This avoids the bulb shaking or falling when adjusting the position of the U-shaped block, thus improving the stability of the device.

Description

Technical Field

[0001] This invention relates to the field of novel lighting technology, and more specifically, to a fire emergency lighting fixture with an adjustable lamp head direction at multiple angles. Background Technology

[0002] As a crucial component of building fire evacuation systems, fire emergency lighting fixtures require multi-angle adjustment of their lamp heads based on the site's passageway structure, exit sign locations, and illumination coverage. Currently, most fire emergency lighting fixtures utilize a mechanical joint structure between the lamp head and its bracket. A typical solution involves a pair of locking nuts working in conjunction with a friction disc or gear disc to achieve pitch or horizontal swing positioning of the lamp head. During adjustment, the operator must first loosen the locking nuts to eliminate the frictional torque between the lamp head and the bracket, and then retighten the locking nuts after adjusting to the target angle.

[0003] In actual installation or maintenance, operators often need to work at heights (such as using A-frame ladders or scaffolding), and the on-site environment may be poorly lit and confined. The moment the operator loosens the locking nut with a tool or by hand, the lamp head loses all its holding torque, and only by using the operator's other hand to lift it upwards can a sudden drop due to gravity be prevented. This operating mode requires a high degree of coordination between both hands: one hand is responsible for unlocking or locking, while the other hand must always bear the full gravitational torque of the lamp head assembly until the locking nut is tightened again. The root of the above problems lies in the fact that existing locking nuts can only switch between two states: fully locked and fully free. The operator must actively support the nut with their body to compensate for this structural defect. When at a height, the operator's body posture is restricted, and bearing weight with one hand is extremely tiring. If the supporting force is temporarily lost due to slipping, misjudging the center of gravity, or emergency avoidance, the lamp head will wobble or even fall, which may easily collide with the structural components below, causing the housing to crack or the light source to be damaged. It may even injure the operator's fingers or cause them to lose balance and fall from a height. In view of this, the present invention proposes a fire emergency lighting fixture with a multi-angle adjustable lamp head direction. Summary of the Invention

[0004] The purpose of this invention is to provide a fire emergency lighting fixture with adjustable lamp head direction at multiple angles, in order to solve the problem mentioned in the background art that the existing locking nuts can only achieve two states: fully locked or fully free. This causes the lamp head to suddenly lose its holding torque during adjustment and is prone to falling, increasing the safety risks of working at heights.

[0005] To address the aforementioned issues, a fire emergency lighting fixture with multi-angle adjustable lamp head direction is provided, comprising a base, a connecting component on one side of the base, a support rod, a position adjustment component on the support rod, a U-shaped block slidably mounted on the support rod, two arms of the U-shaped block slidably mounted on both sides of the support rod, a locking component on the U-shaped block, and a locking screw rotatably inserted through the middle of the U-shaped block; both the support rod and the U-shaped block have grooves adapted to the locking screw. A support ring is fitted onto the locking screw, and the support ring is slidably disposed between the end of the locking screw and one arm of the U-shaped block; The support ring has several elastic pawls evenly arranged in the circumferential direction, and each elastic pawl is inclined toward the U-shaped block. Each of the aforementioned elastic pawls has a damping protrusion fixedly provided on the side near the U-shaped block, which is used to cooperate with the elastic pawl to apply pressure to the U-shaped block.

[0006] When the locking screw is loosened, the elastic pawls around the support ring transmit pressure to the U-shaped block through the damping protrusions. Even after the locking screw is loosened, the U-shaped block can still be elastically pressed, preventing the U-shaped block from being in a completely free state after the locking screw is loosened. This avoids the light bulb from shaking or falling when the position of the U-shaped block is adjusted.

[0007] As a further improvement to this technical solution, a convex ring is fixedly provided on the side of the support ring away from the U-shaped block. The side of the convex ring away from the support ring is an inclined surface, and the convex ring is sleeved on the locking screw.

[0008] When the convex ring is under pressure, it transmits the pressure to the support ring, causing it to re-fit against the U-shaped block.

[0009] As a further improvement to this technical solution, a clamping ring is provided on the side of the support ring near the convex ring. The clamping ring is sleeved on the U-shaped block, and the side of the clamping ring near the convex ring is provided with an inclined surface that is completely complementary to the convex ring.

[0010] As the clamping ring rotates, it gradually breaks away from the inclined surface on one side of the convex ring and applies pressure to the convex ring. The convex ring transmits the pressure to the support ring, causing it to re-fit with the U-shaped block. The support ring then applies pressure to the U-shaped block through the elastic pawl and damping protrusion, keeping it in contact with the support rod.

[0011] As a further improvement to this technical solution, a nut is threadedly connected to the end of the locking screw away from the support ring, and the nut is located on the other arm of the U-shaped block away from the support rod. An elastic washer is fixedly provided on the side of the clamping ring away from the support ring, and the elastic washer is in contact with the end of the locking screw.

[0012] When fixing the U-shaped block, the U-shaped block is clamped and fixed by holding the nut and tightening the locking screw. After the locking screw is tightened, it is tightly attached to the elastic washer and pressure is applied to it. The elastic washer transmits the pressure to the clamping ring, so that it always remains in a locked state.

[0013] As a further improvement to this technical solution, a top block is fixedly provided in the threaded groove of the locking screw near the end of the clamping ring, and a locking block adapted to the top block is rotatably provided on the inner wall of the top block. A spring is fixedly installed on one side of the locking block, and the spring is fixedly installed inside the clamping ring.

[0014] When the locking screw is loosened, the top block gradually comes into contact with the plane on the lower side of the locking block as the locking screw rotates. At this time, the locking block cannot be pressed into the inside of the clamping ring. The top block pushes the locking block as the locking screw rotates, and simultaneously drives the clamping ring to rotate.

[0015] Compared with the prior art, the beneficial effects of the present invention are as follows: 1. In this fire emergency lighting fixture with multi-angle adjustable lamp head direction, when the locking screw is loosened, the support ring remains in contact with the U-shaped block under the pressure of the clamping ring. At the same time, the elastic pawls around the support ring transmit pressure to the U-shaped block through the damping protrusions. Even after the locking screw is loosened, the U-shaped block can still be elastically pressed, preventing the U-shaped block from being in a completely free state after the locking screw is loosened. This avoids the bulb from shaking or falling when the position of the U-shaped block is adjusted, thus improving the stability of the device.

[0016] 2. In this fire emergency lighting fixture with multi-angle adjustable lamp head direction, when the locking screw is loosened, the top block gradually contacts the locking block as the locking screw rotates, and drives the clamping ring to rotate by pushing the locking block. At the same time, the inclined surface on one side of the clamping ring rotates and squeezes the corresponding inclined surface on the side of the convex ring to apply pressure to the support ring, preventing the support ring from separating from the U-shaped block and causing the elastic pawl to be unable to apply pressure to the U-shaped block. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the connection component structure of the present invention; Figure 3 This is a schematic diagram of the angle adjustment component structure of the present invention; Figure 4 This is a schematic diagram of the position adjustment component and bulb structure of the present invention; Figure 5 This is a schematic diagram of the support rod and position adjustment assembly of the present invention; Figure 6 This is a schematic diagram of the locking assembly structure of the present invention; Figure 7 This is a schematic diagram of the support ring structure of the present invention; Figure 8 This is a side view of the support ring structure of the present invention; Figure 9 This is an exploded view of the support ring and clamping ring structure of the present invention; Figure 10 This is an exploded view of the locking screw and clamping ring structure of the present invention; Figure 11 This is a cross-sectional view of the clamping ring structure of the present invention; Figure 12 This is a side view of the support rod and position adjustment assembly structure of the present invention; Figure 13 This is a schematic diagram of the support rod and U-shaped block structure of the present invention; Figure 14 This is a schematic diagram of the support rod and friction plate structure of the present invention.

[0018] The meanings of the labels in the diagram are as follows: 1. Base; 2. Connecting assembly; 21. Support rod; 22. Angle adjustment assembly; 221. Collar; 222. Rotary block; 223. Screw; 23. Connecting plate; 3. Position adjustment assembly; 31. U-shaped block; 32. Locking assembly; 321. Locking screw; 322. Support ring; 323. Elastic pawl; 324. Damping protrusion; 325. Limiting rod; 326. Protruding ring; 327. Nut; 33. Pressure ring; 34. Elastic washer ring; 35. Top block; 36. Locking block; 37. Spring; 38. Fixing rod; 39. Friction plate; 4. Light bulb. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0021] Example 1 First, please refer to Figures 1-4 The purpose of this embodiment is to provide a fire emergency lighting fixture with adjustable lamp head direction at multiple angles, including a base 1. When installing the device, screws are passed through the mounting holes around the base 1 and fixed in the designated position. A connecting component 2 is provided on one side of the base 1. The connecting component 2 includes a support rod 21. An angle adjustment component 22 is provided on the side of the base 1 near the support rod 21. The angle adjustment component 22 includes a collar 221 fixedly disposed at the center position on one side of the base 1. A rotating block 222 is rotatably disposed in the middle of the collar 221. Screws 223 for locking the rotating block 222 are symmetrically threaded on the side wall of the collar 221. When adjusting the angle of the rotating block 222, the angle is adjusted by loosening the two screws 223 and rotating the rotating block 222, and the rotating block 222 is locked by tightening the screws 223. Furthermore, a connecting plate 23 is fixedly provided on one side of the rotating block 222. The connecting plate 23 is located between the support rod 21 and the angle adjustment component 22. The angle of the connecting plate 23 can be adjusted by adjusting the angle of the rotating block 222. The support rod 21 is rotatably connected to the connecting plate 23, and the rotation and fixing method of the support rod 21 is the same as that of the connecting plate 23. While adjusting the angle of the rotating block 222, the lateral angle adjustment of the support rod 21 is also completed. When adjusting the longitudinal angle of the support rod 21, the structure between the support rod 21 and the connecting plate 23 can be adjusted in the same way as when adjusting the angle of the rotating block 222.

[0022] Furthermore, a position adjustment component 3 is provided on the support rod 21. The position adjustment component 3 includes a U-shaped block 31 that is slidably disposed on the support rod 21. A bulb 4 is fixedly disposed at the end of the U-shaped block 31 away from the support rod 21. The bulb 4 is adjusted to a suitable illumination angle by adjusting the angle of the support rod 21.

[0023] For easier adjustment of the illumination position of bulb 4, please refer to [link / reference]. Figure 5 and Figure 12The two arms of the U-shaped block 31 are slidably disposed on both sides of the support rod 21. A locking assembly 32 is provided on the U-shaped block 31. The locking assembly 32 includes a locking screw 321 that is rotatably inserted in the middle of the U-shaped block 31. A nut 327 is threadedly connected to the end of the locking screw 321 away from the support ring 322. The nut 327 is disposed on the other arm of the U-shaped block 31 away from the support rod 21. When fixing the U-shaped block 31, the U-shaped block 31 is clamped and fixed by holding the nut 327 and tightening the locking screw 321.

[0024] To prevent U-shaped block 31 from becoming loose, please refer to Figures 12-14 Friction plates 39 are provided between the two arms of the U-shaped block 31 and the two sides of the support rod 21. The two friction plates 39 are slidably disposed on the two sides of the support rod 21, and the friction plates 39 protrude slightly outward from the support rod 21 in the initial state. The friction plates 39 have a certain elasticity. When the locking screw 321 is tightened, the locking screw 321 and the nut 327 press the two arms of the U-shaped block 31 inward. Under the action of compression, the two arms of the U-shaped block 31 are tightly attached to the two friction plates 39, and the friction plates 39 are pressed to increase the friction between the two arms of the U-shaped block 31 and the support rod 21, and prevent the U-shaped block 31 from loosening during subsequent use. Furthermore, both the support rod 21 and the U-shaped block 31 have a groove in the middle that matches the locking screw 321. When adjusting the illumination position of the bulb 4, the position of the bulb 4 is adjusted by loosening the locking screw 321 and moving the U-shaped block 31. Secondly, a fixing rod 38 for limiting the U-shaped block 31 is inserted through one end of the groove in the middle of the U-shaped block 31. The fixing rod 38 is fixedly connected to the support rod 21. The fixing rod 38 limits the U-shaped block 31 to prevent the U-shaped block 31 from rotating when it is moved, which would cause the angle of the bulb 4 to change.

[0025] To prevent the U-shaped block 31 from becoming completely free and wobbling or falling off after the locking screw 321 is loosened, please refer to... Figures 4-11 A support ring 322 is fitted onto the locking screw 321. The support ring 322 is slidably positioned between the end of the locking screw 321 and one arm of the U-shaped block 31. Several elastic pawls 323 are evenly arranged circumferentially on the support ring 322, each pawl 323 tilted towards the U-shaped block 31. A damping protrusion 324 is fixedly provided on the side of each elastic pawl 323 closest to the U-shaped block 31, used to cooperate with the elastic pawls 323 to apply pressure to the U-shaped block 31. When the support ring 322 is compressed, it fits against the U-shaped block 31. At this time, the elastic pawls 323 tilted towards the U-shaped block 31 transmit pressure to the U-shaped block 31 through the damping protrusion 324. Specifically: A protruding ring 326 is fixedly provided on the side of the support ring 322 away from the U-shaped block 31, and the protruding ring 326 is sleeved on the locking screw 321. A clamping ring 33 is provided on the side of the support ring 322 near the protruding ring 326, and the clamping ring 33 is sleeved on the U-shaped block 31. A top block 35 is fixedly provided in the threaded groove of the locking screw 321 near the end of the clamping ring 33. A locking block 36 that is adapted to the top block 35 is rotatably provided on the inner wall of the top block 35. A spring 37 is fixedly provided on one side of the locking block 36, and the spring 37 is fixedly provided inside the clamping ring 33. The upper side of the locking block 36 is an inclined surface. When the locking screw 321 is tightened... As the locking screw 321 rotates, the top block 35 gradually comes into contact with the inclined surface on the upper side of the locking block 36, pressing the locking block 36 into the inside of the clamping ring 33. This does not affect the locking screw 321's locking of the U-shaped block 31. To prevent the clamping ring 33 from loosening after the locking screw 321 is tightened, an elastic washer 34 is fixedly provided on the side of the clamping ring 33 away from the support ring 322. The elastic washer 34 fits against the end of the locking screw 321. After the locking screw 321 is tightened, it fits tightly against the elastic washer 34 and applies pressure to it. The elastic washer 34 transmits the pressure to the clamping ring 33, keeping it in a locked state. The lower side of the locking block 36 is a flat surface. When the locking screw 321 is loosened, the top block 35 gradually comes into contact with the flat surface of the lower side of the locking block 36 as the locking screw 321 rotates. At this time, the locking block 36 cannot be pressed into the inside of the clamping ring 33. The top block 35 pushes the locking block 36 as the locking screw 321 rotates, and simultaneously drives the clamping ring 33 to rotate. The side of the convex ring 326 away from the support ring 322 is a slope, and the side of the clamping ring 33 near the convex ring 326 has a slope that is completely complementary to that of the convex ring 326. When the locking screw 321 is tightened, the slope on the side of the clamping ring 33 is in contact with the slope on the side of the convex ring 326. During the process of loosening the locking screw 321, the top block 35 needs to rotate a certain angle when it moves closer to the locking block 36. At this time, the locking screw 321 rotates a certain angle relative to the clamping ring 33. When the top block 35 contacts the locking block 36, the locking screw 321 has been loosened. As a result, the support ring 322 also becomes loose. At this time, continue to rotate the locking screw 321 and drive the top block 35 to push the locking block 36. The pressing ring 33 rotates accordingly. The pressing ring 33 gradually separates from the inclined surface on one side of the convex ring 326 and applies pressure to the convex ring 326. The convex ring 326 transmits the pressure to the support ring 322, so that it is in contact with the U-shaped block 31 again. The elastic pawl 323 and the damping protrusion 324 apply pressure to the U-shaped block 31, so that it is in contact with the support rod 21, preventing the U-shaped block 31 from shaking or falling off when adjusting its position.

[0026] Secondly, to prevent the support ring 322 from rotating when the convex ring 326 is under pressure, please refer to [link to relevant documentation]. Figures 5-8A plurality of limiting rods 325 are fixedly provided on the side of the U-shaped block 31 near the support ring 322. Each limiting rod 325 slides through the support ring 322 to guide the support ring 322 to slide. Under the restriction of the limiting rods 325, when the convex ring 326 is compressed, the support ring 322 can only slide along the direction set by the limiting rods 325, which prevents the support ring 322 from being unable to be pushed to fit with the U-shaped block 31 due to the rotation of the pressing ring 33.

[0027] Therefore, based on the above, the working principle of the present invention can be summarized as follows: After fixing the base 1 in the designated position, the lateral angle of the support rod 21 is adjusted by rotating the rotating block 222, and the rotating block 222 is fixed by tightening the screw 223. Then, the longitudinal angle of the support rod 21 is adjusted in the same way, and the locking screw 321 is tightened to fix the U-shaped block 31. When adjusting the position of the U-shaped block 31, the U-shaped block 31 is moved by loosening the locking screw 321. During the process of loosening the locking screw 321, the top block 35 gradually engages with the locking block 36 as the locking screw 321 rotates. When the top block 35 pushes the locking block 36, it simultaneously drives the clamping ring 33 to rotate. The clamping ring 33 applies pressure to the inclined surface of the convex ring 326 through its inclined surface. The pressure is transmitted to the support ring 322 through the convex ring 326, causing the support ring 322 to fit against the U-shaped block 31 again. At this time, the elastic pawl 323 and the damping protrusion 324 apply pressure to the U-shaped block 31, so that even after the locking screw 321 is loosened, the U-shaped block 31 still remains in contact with the support rod 21. This prevents the U-shaped block 31 from shaking or falling off after the locking screw 321 is loosened, thus improving the stability of the device.

[0028] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A fire emergency lighting fixture with adjustable lamp head direction at multiple angles, comprising a base (1), a connecting component (2) provided on one side of the base (1), the connecting component (2) comprising a support rod (21), a position adjustment component (3) provided on the support rod (21), the position adjustment component (3) comprising a U-shaped block (31) slidably disposed on the support rod (21), the two arms of the U-shaped block (31) being slidably disposed on both sides of the support rod (21), characterized in that: The U-shaped block (31) is provided with a locking assembly (32), the locking assembly (32) includes a locking screw (321) that is rotatably inserted in the middle of the U-shaped block (31), and the support rod (21) and the U-shaped block (31) are both provided with a sliding groove that is adapted to the locking screw (321). A support ring (322) is fitted on the locking screw (321), and the support ring (322) is slidably disposed between the end of the locking screw (321) and one arm of the U-shaped block (31); The support ring (322) has several elastic pawls (323) evenly arranged in the circumferential direction, and each elastic pawl (323) is inclined toward the U-shaped block (31); Each of the elastic pawls (323) is fixedly provided with a damping protrusion (324) on the side near the U-shaped block (31) to cooperate with the elastic pawls (323) to apply pressure to the U-shaped block (31).

2. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 1, characterized in that: The U-shaped block (31) is fixedly provided with multiple limiting rods (325) on the side near the support ring (322). Each limiting rod (325) slides through the support ring (322) to guide the support ring (322) to slide.

3. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 1, characterized in that: A protruding ring (326) is fixedly provided on the side of the support ring (322) away from the U-shaped block (31). The side of the protruding ring (326) away from the support ring (322) is an inclined surface, and the protruding ring (326) is sleeved on the locking screw (321).

4. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 3, characterized in that: The support ring (322) has a clamping ring (33) on the side near the convex ring (326). The clamping ring (33) is sleeved on the U-shaped block (31), and the side of the clamping ring (33) near the convex ring (326) has a slope that is completely complementary to the convex ring (326).

5. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 4, characterized in that: The locking screw (321) is threaded with a nut (327) at one end away from the support ring (322), and the nut (327) is located on the other side of the U-shaped block (31) away from the support rod (21); An elastic washer (34) is fixedly provided on the side of the clamping ring (33) away from the support ring (322), and the elastic washer (34) is in contact with the end of the locking screw (321).

6. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 4, characterized in that: A top block (35) is fixedly provided in the threaded groove of the locking screw (321) near the end of the clamping ring (33), and a locking block (36) adapted to the top block (35) is rotatably provided on the inner wall of the top block (35). A spring (37) is fixedly installed on one side of the locking block (36), and the spring (37) is fixedly installed inside the clamping ring (33).

7. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 1, characterized in that: A fixing rod (38) for limiting the U-shaped block (31) is inserted at one end of the middle groove of the U-shaped block (31), and the fixing rod (38) is fixedly connected to the support rod (21); Friction plates (39) are provided between the two arms of the U-shaped block (31) and the two sides of the support rod (21). The two friction plates (39) are slidably disposed on the two sides of the support rod (21), and the friction plates (39) protrude slightly outward from the support rod (21) in the initial state.

8. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 1, characterized in that: A light bulb (4) is fixedly installed at the end of the U-shaped block (31) away from the support rod (21); An angle adjustment component (22) is provided on the side of the base (1) near the support rod (21). The angle adjustment component (22) includes a collar (221) fixedly disposed at the center position on one side of the base (1).

9. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 8, characterized in that: The collar (221) is rotatably provided with a rotating block (222) in the middle, and the side wall of the collar (221) is symmetrically threaded with screws (223) for locking the rotating block (222).

10. The fire emergency lighting fixture with multi-angle adjustable lamp head direction according to claim 9, characterized in that: A connecting plate (23) is fixedly provided on one side of the rotating block (222), and the connecting plate (23) is disposed between the support rod (21) and the angle adjustment component (22); The support rod (21) is rotatably connected to the connecting plate (23), and the rotation and fixing methods of the support rod (21) are the same as those of the connecting plate (23).

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