An integrated device for fire emergency lighting and evacuation indication

By designing an integrated fire emergency lighting and evacuation instructions device, the problems of integrated control difficulties and maintenance inconvenience caused by the separation of lighting and indicators in the prior art are solved, and the effects of unified power supply, integrated control and dynamic prompts are achieved, which improves the accuracy of evacuation guidance and the convenience of maintenance.

CN119879155BActive Publication Date: 2025-06-10JIUCHENG (SHANDONG) INFORMATION ENGINEERING CO LTD

Patent Information

Application Number
CN202510388922.2
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2025-03-31
Publication Date
2025-06-10
Estimated Expiration
2045-03-31

AI Technical Summary

Technical Problem

The existing fire emergency lighting is separated from the evacuation instructions, resulting in difficulty in integrated control, separation of power supply, inconvenient static instructions for observation, and inconvenient maintenance.

Method used

Design a fire emergency lighting and evacuation indication integrated device, using silicone lamp holder, circuit changer, energized copper plate and other components. Through unified and effective power supply, unified control of emergency lights and indicator lights is achieved, band power supply and dynamic prompt effects are adopted to simplify the maintenance process.

Benefits of technology

It realizes unified power supply and integrated control, improves the continuity and accuracy of lighting and indication, simplifies the maintenance process, and adapts to installation and use in different environments.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN119879155B_ABST
    Figure CN119879155B_ABST
Patent Text Reader

Abstract

The present invention provides an integrated device for fire emergency lighting and evacuation indication, which relates to the technical field of fire lighting and includes: a silicone lamp holder, the main body of the silicone lamp holder is in a long strip structure; a binding hole is provided at the upper flange on the front side of the silicone lamp holder, and a positioning expansion nail is arranged in the binding hole; dark lines are fixedly installed in an equidistant and inlaid manner in the groove structure of the silicone lamp holder; emergency lights and indicator lights are fixedly arranged at equal intervals in the groove structure of the silicone lamp holder; a unified and effective power supply is used for power supply, so that each group of emergency lights and indicator lights can be put into work uniformly, and by adopting the way of continuous lighting prompt, the indication effect can be better achieved. The assembly of the silicone lamp holder and the lamp strip cover is convenient, and it can be quickly installed through the expansion nail, and it can adapt to corner installation, maintain power-on prompt on different walls, and can form one or more complete escape paths to guide the evacuation of the masses, solving the problem of inconvenient control of decentralized indication.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The present invention relates to the technical field of firefighting lighting, and in particular to a firefighting emergency lighting and evacuation indication integrated device. Background Art

[0002] Fire emergency lighting mainly serves as a warning during emergency escape. Common lighting uses light signs with the words "safe exit" for warning. At the same time, emergency lighting is also installed in the corridor. It can be started by a photoelectric switch or manually remotely controlled in the event of a power outage. It is an important safety facility for emergency shelter.

[0003] The current evacuation method separates lighting and evacuation instructions, which has the following disadvantages:

[0004] 1. It is not conducive to integrated control. The interval between lighting and indication is large, and the power supply is separated. When the lighting or indicator lights at individual locations fail, or when there are too many people affecting the line of sight, it is impossible to provide correct and continuous guidance, which is not conducive to continuous guidance.

[0005] 2. Static indication requires active observation, which is not convenient to observe in an emergency. It lacks the visual guidance effect control function that can integrate control and provide band power supply for indicator lights at different positions;

[0006] 3. It is inconvenient to inspect and repair, and separate testing is required during maintenance. Summary of the invention

[0007] In view of this, the present invention aims at the deficiencies existing in the above-mentioned prior art and provides an integrated fire emergency lighting and evacuation indication device.

[0008] The present invention provides an integrated fire emergency lighting and evacuation indication device, specifically comprising: a silicone lamp holder, the main body of the silicone lamp holder is a long strip structure, the middle of the front side of the silicone lamp holder is a groove structure; a binding hole is opened at the upper flange of the front side of the silicone lamp holder, and a positioning expansion nail is arranged in the binding hole; five groups of dark lines are fixedly installed in an equidistant inlaid manner in the groove structure of the silicone lamp holder, and the five groups of dark lines are distributed parallel to each other up and down; emergency lights and indicator lights are fixedly arranged in an equidistant manner in the groove structure of the silicone lamp holder; the upper and lower rear ends of the silicone lamp holder are both shoulder structures, and a light bar cover is arranged on the outside of the silicone lamp holder through the shoulder structure; a circuit converter, the inner upper of the circuit converter Three groups of live copper bars are fixedly arranged on the square, and the three groups of live copper bars are of equal length and do not touch each other; a neutral copper bar is fixedly arranged at the lower part of the circuit converter; three groups of positioning plates are fixedly arranged at equal intervals inside the circuit converter, and two groups of spring piles are slidably arranged in the positioning plates, and springs are sleeved on the ends of the spring piles close to the center of the circuit converter and fixed with trigger push blocks; the energized copper sheet, the main body of the energized copper sheet is arc-shaped, and two groups of connecting piles are fixedly arranged on the inner arc surface of the energized copper sheet, the connecting piles are aligned with the spring piles, and springs are fixedly arranged between the connecting piles and the spring piles; a circuit-changing motor is fixedly arranged on the top of the circuit converter, and an eccentric trigger disk is fixedly arranged on the shaft end of the circuit-changing motor.

[0009] Optionally, the upper and lower edges of the light bar cover are both inclined structures, and the upper edge of the light bar cover extends forward; the light bar cover is made of whitish translucent silicone material and is integrally formed through extrusion technology.

[0010] Optionally, the positioning expansion nail has a hollow structure in the middle, and the nail rod of the positioning expansion nail is a two-petal structure, and the middle of the positioning expansion nail is reduced near the nail tip; an expansion push core is inserted into the positioning expansion nail, and the end of the expansion push core is a round head structure; after the expansion push core is knocked into the positioning expansion nail, the nail rods on both sides of the positioning expansion nail are expanded outward.

[0011] Optionally, the emergency light adopts an array LED lamp structure; the light-emitting portion of the indicator light is arrow-shaped; the emergency light and the indicator light are aligned with the front side of the silicone lamp holder; and the light-emitting portions of the emergency light and the indicator light fit the light bar cover.

[0012] Optionally, a wiring buckle is fixedly provided on the outside of the dark line; the positive pole of the emergency light is connected to the wiring buckle outside the bottom dark line; the negative poles of the emergency light and the indicator light are both connected to the wiring buckle outside the middle and lower group of dark lines; the positive poles of the three adjacent groups of indicator lights are respectively connected to the wiring buckles outside the top, upper middle and middle dark lines.

[0013] Optionally, the live copper bar is respectively connected to a group of dark lines; the neutral copper bar is set to connect the emergency power supply, and the front neutral copper bar is connected to the positive pole of the emergency power supply; the negative pole of the emergency power supply is connected to the lower middle dark line, and the positive pole of the emergency power supply is also connected to the bottom dark line; a photoelectric switch is also arranged in series at the positive pole of the emergency power supply.

[0014] Optionally, the upper and lower ends of the outer arc surface of the energized copper sheet are both flange structures, and the outer arc surface of the energized copper sheet can contact the live copper bar and the neutral copper bar; a reset pile is fixedly arranged in the middle of the inner arc surface of the energized copper sheet, and the reset pile can contact the trigger push block; two sets of limiting corners are fixedly arranged on the inner arc surface of the energized copper sheet, and the two sides of the trigger push block are vertical groove structures, and the corners of the limiting corners cooperate with the guide rod to slide in the vertical groove structure.

[0015] Optionally, the eccentric trigger disk is a fan-shaped structure, and the outer portion of the eccentric trigger disk can contact the trigger push block when the eccentric trigger disk rotates.

[0016] The beneficial effects are as follows:

[0017] 1. Use a unified and effective power supply to supply power, so that all groups of emergency lights and indicator lights can be put into operation in a unified manner, and the use of continuous lighting prompts can better play an indication effect. The silicone lamp holder and light strip cover are easy to assemble, can be quickly installed through expansion nails, and can adapt to corner installation. Maintain power prompts on different walls, which can form one or more complete escape routes to guide the evacuation of the crowd.

[0018] 2. The indicator light can provide a dynamic prompt effect. The switching motor drives the eccentric trigger disk to rotate, and the energized copper sheet is used to adaptively contact a group of live copper bars and neutral copper bars. Through circulation, different live copper bars are intermittently connected to the neutral copper bar, producing a band-type prompt effect, which can better prompt people in different positions to move to a safe position. The moving speed of the light wave can also be adjusted by adjusting the speed of the switching motor.

[0019] 3. Easy maintenance. When maintaining, remove the light bar cover and use a multimeter to check. You can first actively control the line connection to check whether the emergency light is off, and then observe whether the indicator light is always off. Then repair it to complete the maintenance; the upper edge of the light bar cover extends forward, which can reduce the dust on the working surface of the light bar cover through the dust shielding effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the work flow structure of an embodiment of the present invention is shown;

[0021] Figure 2 A schematic diagram of the circuit connection structure of an embodiment of the present invention is shown;

[0022] Figure 3 A schematic diagram of the overall distribution structure of an embodiment of the present invention is shown;

[0023] Figure 4 A schematic diagram of the three-dimensional disassembled structure of a silicone lamp holder in an embodiment of the present invention is shown;

[0024] Figure 5 A schematic diagram of a three-dimensional cross-sectional structure of a positioning expansion nail in an embodiment of the present invention is shown;

[0025] Figure 6 The embodiment of the present invention is shown Figure 4 A local enlarged structural diagram of the part;

[0026] Figure 7 The internal structure diagram of the circuit breaker in the embodiment of the present invention is shown;

[0027] Figure 8 The embodiment of the present invention is shown Figure 7 Another angle diagram of the structure.

[0028] List of reference numerals:

[0029] 1. Silicone lamp holder; 101. Binding hole; 102. Light bar cover; 103. Hidden line; 104. Wiring buckle; 2. Positioning expansion nail; 201. Expansion push core; 3. Emergency light; 4. Indicator light; 5. Circuit changer; 501. Live copper bar; 502. Neutral copper bar; 6. Positioning plate; 601. Trigger push block; 602. Spring pile; 603. Power-carrying copper sheet; 604. Connecting pile; 605. Reset pile; 606. Limiting corner; 7. Circuit change motor; 701. Eccentric trigger disk. DETAILED DESCRIPTION

[0030] In order to make the purpose, scheme and advantages of the technical solution of the present invention clearer, the technical solution of the embodiment of the present invention will be clearly and completely described below in conjunction with the drawings of specific embodiments of the present invention.

[0031] Example 1: Please refer to the attached drawings in the specification. Figures 1 to 8 As shown:

[0032] The present invention proposes an integrated fire emergency lighting and evacuation indication device, comprising: a silicone lamp holder 1, the main body of the silicone lamp holder 1 is a long strip structure, the middle of the front side of the silicone lamp holder 1 is a groove structure; a binding hole 101 is opened at the upper flange of the front side of the silicone lamp holder 1, and a positioning expansion nail 2 is arranged in the binding hole 101; five groups of dark lines 103 are fixedly installed in an equidistant inlaid manner in the groove structure of the silicone lamp holder 1, and the five groups of dark lines 103 are distributed in parallel up and down; an emergency light 3 and an indicator light 4 are fixedly arranged at an equidistant distance in the groove structure of the silicone lamp holder 1; the upper and lower rear ends of the silicone lamp holder 1 are both shoulder structures, and a light bar cover 102 is arranged on the outside of the silicone lamp holder 1 through the shoulder structure; a circuit converter 5, and three groups of live copper bars 501 are fixedly arranged on the upper part of the circuit converter 5 , the three groups of live copper strips 501 are of equal length and do not touch each other; a neutral copper strip 502 is fixedly arranged at the lower part of the circuit converter 5; three groups of positioning plates 6 arranged equidistantly are fixedly arranged inside the circuit converter 5, and two groups of spring piles 602 are slidably arranged in the positioning plates 6, and the ends of the spring piles 602 close to the center of the circuit converter 5 are sleeved with springs and fixed with trigger push blocks 601; the energized copper sheet 603, the main body of the energized copper sheet 603 is arc-shaped, and two groups of connecting piles 604 are fixedly arranged on the inner arc surface of the energized copper sheet 603, the connecting piles 604 are aligned with the spring piles 602, and springs are fixedly arranged between the connecting piles 604 and the spring piles 602; a circuit-changing motor 7 is fixedly arranged on the top of the circuit converter 5, and an eccentric trigger disk 701 is fixedly arranged on the shaft end of the circuit-changing motor 7.

[0033] The upper and lower edges of the light bar cover 102 are both inclined structures, and the upper edge of the light bar cover 102 extends forward; the light bar cover 102 is made of white translucent silicone material and is integrally formed through extrusion technology.

[0034] Among them, the middle of the positioning expansion nail 2 is a hollow structure, the nail rod part of the positioning expansion nail 2 is a two-petal structure, and the middle of the positioning expansion nail 2 is reduced near the nail tip; an expansion push core 201 is inserted into the positioning expansion nail 2, and the end of the expansion push core 201 is a round head structure; after the expansion push core 201 is knocked into the positioning expansion nail 2, the nail rods on both sides of the positioning expansion nail 2 are expanded outward.

[0035] Among them, the emergency light 3 adopts an array LED light structure; the light-emitting part of the indicator light 4 is arrow-shaped; the emergency light 3 and the indicator light 4 are aligned with the front side of the silicone lamp holder 1; the light-emitting parts of the emergency light 3 and the indicator light 4 fit the light strip cover 102.

[0036] Among them, a wiring buckle 104 is fixedly set on the outside of the dark line 103; the positive pole of the emergency light 3 is connected to the wiring buckle 104 outside the bottom dark line 103; the negative poles of the emergency light 3 and the indicator light 4 are both connected to the wiring buckle 104 outside the middle and lower group of dark lines 103; the positive poles of the three adjacent groups of indicator lights 4 are respectively connected to the wiring buckles 104 outside the top, upper middle and middle dark lines 103; the material of the dark line 103 can be selected from soft conductive materials such as copper tape or wiring.

[0037] Among them, the live copper bar 501 is connected to a group of dark lines 103 respectively; the neutral copper bar 502 is set to connect the emergency power supply, and the front neutral copper bar 502 is connected to the positive pole of the emergency power supply; the negative pole of the emergency power supply is connected to the lower middle dark line 103, and the positive pole of the emergency power supply is also connected to the bottom dark line 103; a photoelectric switch is also arranged in series at the positive pole of the emergency power supply.

[0038] Among them, the upper and lower ends of the outer arc surface of the energized copper sheet 603 are both flange structures, and the outer arc surface of the energized copper sheet 603 can contact the live copper bar 501 and the neutral copper bar 502; a reset pile 605 is fixedly arranged in the middle of the inner arc surface of the energized copper sheet 603, and the reset pile 605 can contact the trigger push block 601; two sets of limiting corners 606 are fixedly arranged on the inner arc surface of the energized copper sheet 603, and the two sides of the trigger push block 601 are vertical groove structures, and the corners of the limiting corners 606 cooperate with the guide rod to slide in the vertical groove structure.

[0039] The eccentric trigger disk 701 is a fan-shaped structure, and the outer portion of the eccentric trigger disk 701 can contact the trigger push block 601 when the eccentric trigger disk 701 rotates.

[0040] like Figure 1-6 As shown, the silicone lamp holder 1 and the light bar cover 102 are customized according to the application length on site, and the dark lines 103 can be connected in multiple groups by splicing to ensure power supply. The total length of a single group of dark lines 103 is consistent with the silicone lamp holder 1 and the light bar cover 102;

[0041] The silicone lamp holder 1, the light bar cover 102 and the dark line 103 are made of soft material, which can adapt to the inside and outside corners, such as the corners of the corridor or the corners of the intersection, and can be installed. Through splicing and installation, one or more complete escape routes can be formed to guide the evacuation of the masses;

[0042] During installation, the positioning expansion nail 2 is passed through the binding hole 101 and hammered into the wall, or a hole is pre-drilled in the wall, and then the expansion push core 201 is hammered into the positioning expansion nail 2, and the nail rods on both sides of the positioning expansion nail 2 are expanded outward, and the silicone lamp holder 1 is fixed by expansion and extrusion, and then the light bar cover 102 is installed;

[0043] The light bar cover 102 can be installed by means of clipping or gluing.

[0044] Embodiment 2: Based on Embodiment 1, during maintenance, the light bar cover 102 can be removed and checked with a multimeter. The line connection can be actively controlled first to check whether any emergency light 3 is not lit, and then observe whether any indicator light 4 is always off, and then repair it to complete the maintenance.

[0045] Embodiment 3: On the basis of Embodiment 1, when a power outage or disaster occurs, a passage is formed by a photo-controlled switch or other effective means, the emergency light 3 is directly turned on, and the circuit-changing motor 7 is powered by the emergency power supply. The circuit-changing motor 7 drives the eccentric trigger disk 701 to rotate. During the rotation of the eccentric trigger disk 701, a group of trigger push blocks 601 are pushed outward, and the spring pile 602 and the spring between the spring pile 602 and the connecting pile 604 are used to push the energized copper sheet 603 outward. The energized copper sheet 603 is used to adaptively contact a group of live copper strips 501 and neutral copper strips 502, and then one of the three groups of dark lines 103 is powered, and the indicator light 4 connected to it is powered on and lights up, while the other indicator lights 4 are off, thereby producing a band-like visual effect and realizing dynamic guidance.

[0046] Specific usage and function of this embodiment: In the present invention, when in use, the silicone lamp holder 1 and the light bar cover 102 are customized according to the application length on site, and the dark lines 103 can be connected in multiple groups by splicing to ensure power supply, and the total length of a single group of dark lines 103 is consistent with the silicone lamp holder 1 and the light bar cover 102;

[0047] The silicone lamp holder 1, the light bar cover 102 and the dark line 103 are made of soft material, which can adapt to the inside and outside corners, such as the corners of the corridor or the corners of the intersection, and can be installed. Through splicing and installation, one or more complete escape routes can be formed to guide the evacuation of the masses;

[0048] During installation, the positioning expansion nail 2 is passed through the binding hole 101 and hammered into the wall, or a hole is pre-drilled in the wall, and then the expansion push core 201 is hammered into the positioning expansion nail 2, and the nail rods on both sides of the positioning expansion nail 2 are expanded outward, and the silicone lamp holder 1 is fixed by expansion and extrusion, and then the light bar cover 102 is installed;

[0049] When a power outage or disaster occurs, a passage is formed by a light-controlled switch or other effective means, the emergency light 3 is directly turned on, and the emergency power supply is used to power the switching motor 7. The switching motor 7 drives the eccentric trigger disk 701 to rotate. During the rotation of the eccentric trigger disk 701, a group of trigger push blocks 601 are pushed outward, and the spring pile 602 and the spring between the spring pile 602 and the connecting pile 604 are used to push the energized copper sheet 603 outward. The energized copper sheet 603 is used to adaptively contact a group of live copper strips 501 and neutral copper strips 502, and then one of the three groups of dark lines 103 is powered, and the indicator light 4 connected to it is powered on and lights up, while the other indicator lights 4 are in an off state;

[0050] Power is supplied by connecting three groups of live copper bars 501 to the neutral copper bar 502 respectively, so that the indicator light 4 lights up cyclically, producing a band-like visual effect. People can escape by following the moving direction of the light wave. The dynamic prompt is more convenient and controllable. The moving speed of the light wave can also be adjusted by adjusting the speed of the switching motor 7.

Claims

1. A fire emergency lighting and evacuation indication integrated device, characterized in that: include: A silicone lamp holder (1), wherein the main body of the silicone lamp holder (1) is a long strip-shaped structure, and the middle of the front side of the silicone lamp holder (1) is a groove structure; a binding hole (101) is provided at the upper flange of the front side of the silicone lamp holder (1), and a positioning expansion nail (2) is arranged in the binding hole (101); five groups of dark lines (103) are fixedly installed in an equidistant manner in the groove structure of the silicone lamp holder (1), and the five groups of dark lines (103) are distributed parallel to each other in the upper and lower parts; an emergency light (3) and an indicator light (4) are fixedly arranged in the groove structure of the silicone lamp holder (1); the upper and lower rear ends of the silicone lamp holder (1) are both shoulder structures, and a light bar cover (102) is arranged on the outside of the silicone lamp holder (1) through the shoulder structure; A circuit breaker (5), wherein three groups of live copper bars (501) are fixedly arranged on the upper part of the circuit breaker (5), and the three groups of live copper bars (501) are of equal length and do not contact each other; and a neutral copper bar (502) is fixedly arranged on the lower part of the circuit breaker (5); Three groups of positioning plates (6) arranged at equal intervals are fixedly arranged inside the circuit changer (5), two groups of spring piles (602) are slidably arranged in the positioning plates (6), one end of the spring piles (602) close to the center of the circuit changer (5) is sleeved with a spring and fixed with a trigger push block (601); a power-carrying copper sheet (603), the main body of the power-carrying copper sheet (603) is arc-shaped, two groups of connecting piles (604) are fixedly arranged on the inner arc surface of the power-carrying copper sheet (603), the connecting piles (604) are aligned with the spring piles (602), and springs are fixedly arranged between the connecting piles (604) and the spring piles (602); a circuit change motor (7) is fixedly arranged on the top of the circuit changer (5), and an eccentric trigger disk (701) is fixedly arranged on the shaft end of the circuit change motor (7).

2. A fire emergency lighting and evacuation indication integrated device as claimed in claim 1, characterized in that: The upper and lower edges of the light bar cover (102) are both inclined structures, and the upper edge of the light bar cover (102) extends forward; the light bar cover (102) is made of a white semi-transparent silicone material and is integrally formed by extrusion technology.

3. The fire emergency lighting and evacuation indication integrated device as claimed in claim 1, characterized in that: The positioning expansion nail (2) has a hollow structure in the middle, the nail rod of the positioning expansion nail (2) has a two-flap structure, and the middle of the positioning expansion nail (2) is reduced near the nail tip; an expansion push core (201) is inserted into the positioning expansion nail (2), and the end of the expansion push core (201) has a round head structure; After the expansion push core (201) is driven into the positioning expansion nail (2), the nail rods on both sides of the positioning expansion nail (2) are expanded outwards.

4. A fire emergency lighting and evacuation indication integrated device as claimed in claim 2, characterized in that: The emergency light (3) adopts an array-type LED light structure; the light-emitting portion of the indicator light (4) is arrow-shaped; the emergency light (3) and the indicator light (4) are aligned with the front side of the silicone lamp holder (1); and the light-emitting portions of the emergency light (3) and the indicator light (4) fit the light bar cover (102).

5. The fire emergency lighting and evacuation indication integrated device as claimed in claim 1, characterized in that: A wiring buckle (104) is fixedly arranged outside the dark line (103); the positive pole of the emergency light (3) is connected to the wiring buckle (104) outside the bottom dark line (103); the negative poles of the emergency light (3) and the indicator light (4) are both connected to the wiring buckle (104) outside the middle and lower group of dark lines (103); the positive poles of the three adjacent groups of indicator lights (4) are respectively connected to the wiring buckles (104) outside the top, upper middle and middle dark lines (103).

6. A fire emergency lighting and evacuation indication integrated device as claimed in claim 5, characterized in that: The live copper strips (501) are respectively connected to a group of dark strips (103); the neutral copper strips (502) are provided with a line connected to an emergency power supply, and the front neutral copper strip (502) is connected to the positive pole of the emergency power supply; the negative pole of the emergency power supply is connected to the middle and lower dark strips (103), and the positive pole of the emergency power supply is also connected to the lowest dark strip (103); and a light-controlled switch is also arranged in series at the positive pole of the emergency power supply.

7. The integrated fire emergency lighting and evacuation indication device according to claim 1, characterized in that: The upper and lower ends of the outer arc surface of the energized copper sheet (603) are both flange structures, and the outer arc surface of the energized copper sheet (603) can contact the live copper strip (501) and the neutral copper strip (502); a reset pile (605) is fixedly arranged in the middle of the inner arc surface of the energized copper sheet (603), and the reset pile (605) can contact the trigger push block (601); two groups of limit corners (606) are fixedly arranged on the inner arc surface of the energized copper sheet (603), and the two sides of the trigger push block (601) are vertical groove structures, and the corners of the limit corners (606) cooperate with the guide rod to slide in the vertical groove structure.

8. A fire emergency lighting and evacuation indication integrated device as claimed in claim 7, characterized in that: The eccentric trigger disk (701) is a fan-shaped structure, and when the eccentric trigger disk (701) rotates, the outer portion can contact the trigger push block (601).

Citation Information

Patent Citations

  • Marquee for decoration

    CN201539813U

  • LED dynamic safety exist indicating lamp

    CN202258212U

Cited By

  • Fire-fighting emergency lighting and evacuation indicating device

    CN122281260A