Electronic limiting device for ceiling screen motor

By incorporating tensioning components and servo motors into the smoke curtain, combined with lifting rods and positioning bars, the problem of poor smoke blocking effect under wind influence was solved, achieving a stable smoke blocking effect at the fire scene.

CN223930563UActive Publication Date: 2026-02-24JIANGXI NAHAI TECH CO LTD
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Patent Information

Application Number
CN202520290545.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-24
Publication Date
2026-02-24
Estimated Expiration
2035-02-24

AI Technical Summary

Technical Problem

Existing smoke curtains are ineffective at blocking smoke at fire scenes due to wind conditions.

Method used

By incorporating tensioning components and servo motors, the smoke curtain is ensured to remain vertically downward at the fire scene. The combination of lifting rods and positioning bars achieves the stability and adjustability of the smoke curtain.

Benefits of technology

It improves the smoke-blocking effect of smoke curtains at fire scenes, prevents them from being blown up by the wind, and ensures effective blocking of smoke.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a ceiling screen motor electronic limiting device which comprises an electronic limiting device body, the electronic limiting device body comprises a first bottom plate, a first lifting rod and a second lifting rod are arranged on the first bottom plate, and the first lifting rod and the second lifting rod are the same in structure. The first lifting rod and the second lifting rod each comprise a first fixing rod and a first telescopic rod arranged on the first fixing rod, first blind hole threads are arranged on the side walls of the first telescopic rods and the first fixing rods, an overlapping box is arranged between the ends of the first lifting rod and the second lifting rod, and a servo motor is arranged in the overlapping box. A smoke blocking curtain is arranged on an output shaft of the servo motor, a plurality of first through holes are formed in the smoke blocking curtain, a first tensioning component and a second tensioning component are arranged on the first bottom plate, and a fixing ring is arranged at the end of the smoke blocking curtain. The smoke-blocking curtain has the advantages that the first tensioning part and the second tensioning part are arranged to prevent the smoke-blocking curtain from being blown up due to the fact that wind power on a fire scene is too large, and therefore the smoke-blocking effect is improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of smoke-blocking curtains, and in particular to an electronic limit device for a smoke-blocking curtain motor. Background Technology

[0002] While existing smoke curtains can block smoke and fire, they still have shortcomings: 1. Although existing smoke curtains can block smoke at the fire scene, the existing technology does not take into account the influence of wind, which makes the bottom of the smoke curtain not effectively downward, resulting in poor fire prevention effect of existing smoke curtains. Utility Model Content

[0003] The purpose of this utility model is to overcome the shortcomings of the prior art and to improve the smoke blocking effect by setting tensioning component one and tensioning component two to prevent the smoke blocking curtain from being blown up by excessive wind at the fire scene.

[0004] The purpose of this utility model is achieved through the following technical solution: an electronic limiting device for a smoke curtain motor, comprising an electronic limiting device body, the electronic limiting device body comprising a base plate, and a lifting rod 1 and a lifting rod 2 provided on the base plate, the lifting rod 1 and the lifting rod 2 having the same structure, and both the lifting rod 1 and the lifting rod 2 comprising a fixed rod 1 and a telescopic rod 1 provided on the fixed rod 1;

[0005] Preferably, both the telescopic rod one and the fixed rod one have blind hole threads one on their side walls. A mounting box is provided between the ends of the lifting rod one and the lifting rod two, and a servo motor is provided inside the mounting box. A smoke-blocking curtain is provided on the output shaft of the servo motor. A through hole one is provided on the smoke-blocking curtain. A tensioning component one and a tensioning component two are provided on the base plate one. A fixing ring is provided at the end of the smoke-blocking curtain. The fixing ring has a fixing ring one, a fixing ring two, a fixing ring three, and a fixing ring four.

[0006] Preferably, the first and second tensioning components cooperate with the first, second, third, or fourth fixing rings. Both the first and second tensioning components include a fixed pull base, and the fixed pull base is provided with an elastic pull hook. The elastic pull hook is fixed with a through hole on the first, second, third, or fourth fixing ring. The first through hole is provided with a plurality of holes.

[0007] Preferably, the two sides of the smoke-blocking curtain are fixed to the first and second lifting rods respectively by positioning strips. The positioning strips have at least two lengths, and the two ends of the positioning strips are respectively provided with fixing hole one and fixing hole two.

[0008] Preferably, the first fixing hole and the second fixing hole are fixed by bolts, the positioning strip is selectively installed, the smoke curtain is provided with a hanging baffle, and the two ends of the hanging baffle are provided with hooks, and the hooks cooperate with the through hole one on the smoke curtain.

[0009] Preferably, the interior of the hanging baffle is a hollow structure and the top is provided with an outlet. The hanging baffle includes a first side wall plate and a second side wall plate, and both the first side wall plate and the second side wall plate are provided with several through holes.

[0010] Preferably, the interior of the hanging baffle is provided with a water storage tank, and flame-retardant sponges are provided on both sides of the water storage tank. The water storage tank is provided with several through holes, and rubber plugs are provided on the through holes.

[0011] This utility model has the following advantages:

[0012] 1. The electronic limiting device of this utility model includes a base plate, and a lifting rod 1 and a lifting rod 2 are provided on the base plate. The lifting rod 1 and the lifting rod 2 have the same structure, and both the lifting rod 1 and the lifting rod 2 include a fixed rod 1 and a telescopic rod 1 set on the fixed rod 1. Under the action of the lifting rod 1 and the lifting rod 2, the smoke curtain can be raised and lowered freely.

[0013] Both the telescopic rod 1 and the fixed rod 1 have blind hole threads on their side walls. A mounting box is provided between the ends of the lifting rod 1 and the lifting rod 2, and a servo motor is provided inside the mounting box. A smoke curtain is provided on the output shaft of the servo motor. The smoke curtain has several through holes. A tensioning component 1 and a tensioning component 2 are provided on the base plate 1. The tensioning component 1 and the tensioning component 2 ensure that the smoke curtain is always set vertically downward in the fire scene. A fixing ring is provided at the end of the smoke curtain. The fixing ring has a fixing ring 1, a fixing ring 2, a fixing ring 3 and a fixing ring 4, which allows for stretching. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the hanging baffle in this utility model;

[0016] Figure 3 for Figure 1 A magnified view of a portion of point A in the middle;

[0017] Figure 4 for Figure 1 A magnified view of a portion of point B in the middle;

[0018] Figure 5 for Figure 1 A magnified view of a portion of point C in the middle;

[0019] Figure 6 for Figure 2 A magnified view of a portion of point D.

[0020] In the diagram, the components are: 1. Electronic limit device body; 2. Base plate; 3. Lifting rod; 4. Lifting rod II; 5. Fixed rod; 6. Telescopic rod; 7. Blind hole thread; 8. Mounting box; 9. Servo motor; 10. Smoke barrier; 11. Through hole; 12. Tensioning component I; 13. Tensioning component II; 14. Fixed ring; 15. Fixed pull seat; 16. Elastic hook; 17. Positioning strip; 18. Fixed hole I; 19. Hanging baffle; 20. Hook; 21. Side wall plate I; 22. Side wall plate II; 23. Through hole II; 24. Water tank; 25. Flame-retardant sponge; 26. Through hole III; 27. Rubber plug. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings. The scope of protection of the present invention is not limited to the following description:

[0022] like Figures 1-6 As shown, an electronic limiting device for a smoke curtain motor includes an electronic limiting device body 1. The electronic limiting device body 1 includes a base plate 2, and a lifting rod 3 and a lifting rod 4 are provided on the base plate 2. The lifting rod 3 and the lifting rod 4 have the same structure, and both the lifting rod 3 and the lifting rod 4 include a fixed rod 5 and a telescopic rod 6 provided on the fixed rod 5, so that the limiting device body can be adjusted according to the actual height.

[0023] In this embodiment, both the telescopic rod 6 and the fixed rod 5 are provided with blind hole threads 7 on their side walls. A mounting box 8 is provided between the ends of the lifting rod 3 and the lifting rod 4. A servo motor 9 is provided inside the mounting box 8. A smoke-blocking curtain 10 is provided on the output shaft of the servo motor 9. The smoke-blocking curtain 10 is provided with several through holes 11. A tensioning component 12 and a tensioning component 2 13 are provided on the base plate 2. A fixing ring is provided at the end of the smoke-blocking curtain 10. The fixing ring is provided with a fixing ring 14, a fixing ring 2, a fixing ring 3 and a fixing ring 4.

[0024] In this embodiment, tensioning component 12 and tensioning component 23 cooperate with fixing ring 14 or fixing ring 2 or fixing ring 3 or fixing ring 4. Both tensioning component 12 and tensioning component 23 include a fixing seat 15, and the fixing seat 15 is provided with an elastic hook 16. The elastic hook 16 is fixed with the through hole on the fixing ring 14 or fixing ring 2 or fixing ring 3 or fixing ring 4.

[0025] In this embodiment, the two sides of the smoke-blocking curtain 10 are fixed to the lifting rod 3 and the lifting rod 4 respectively by positioning strips 17. The positioning strips 17 have at least two lengths, and the two ends of the positioning strips 17 are respectively provided with fixing holes 18 and 2.

[0026] In this embodiment, fixing holes 18 and 2 are fixed by bolts, positioning strip 17 is selectively installed, smoke curtain 10 is provided with hanging baffle 19, and hooks 20 are provided at both ends of hanging baffle 19, and hooks 20 cooperate with through holes 11 on smoke curtain 10.

[0027] In this embodiment, the interior of the hanging baffle 19 is a cavity structure and the top is a flow outlet. The hanging baffle 19 includes a first side wall plate 21 and a second side wall plate 22, and both the first side wall plate 21 and the second side wall plate 22 are provided with a plurality of through holes 23.

[0028] In this embodiment, a water storage tank 24 is provided inside the hanging baffle 19, and flame-retardant sponges 25 are provided on both sides of the water storage tank 24. The water storage tank 24 is provided with several through holes 26, and rubber plugs 27 are provided on the through holes 26. The rubber plugs 27 shrink when exposed to high temperature, allowing water to flow out and improving the smoke blocking effect.

[0029] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. An electronic limit device for a smoke curtain motor, characterized in that: The device includes an electronic limiting device body, which includes a base plate and a lifting rod 1 and a lifting rod 2 on the base plate. The lifting rod 1 and the lifting rod 2 have the same structure, and both the lifting rod 1 and the lifting rod 2 include a fixed rod 1 and a telescopic rod 1 set on the fixed rod 1. Both the telescopic rod 1 and the fixed rod 1 have blind hole threads 1 on their side walls. A mounting box is provided between the ends of the lifting rod 1 and the lifting rod 2, and a servo motor is provided inside the mounting box. A smoke-blocking curtain is provided on the output shaft of the servo motor. A through hole 1 is provided on the smoke-blocking curtain. A tensioning component 1 and a tensioning component 2 are provided on the base plate 1. A fixing ring is provided at the end of the smoke-blocking curtain. The fixing ring includes a fixing ring 1, a fixing ring 2, a fixing ring 3, and a fixing ring 4.

2. The electronic limiting device for a smoke curtain motor according to claim 1, characterized in that: The tensioning component one and tensioning component two cooperate with the fixing ring one or fixing ring two or fixing ring three or fixing ring four. Both tensioning component one and tensioning component two include a fixed pull seat, and the fixed pull seat is provided with an elastic pull hook. The elastic pull hook is fixed with the through hole on the fixing ring one or fixing ring two or fixing ring three or fixing ring four. The through hole one is provided with a plurality of holes.

3. The electronic limiting device for a smoke curtain motor according to claim 1, characterized in that: The two sides of the smoke-blocking curtain are fixed to the lifting rod one and the lifting rod two respectively by positioning strips. The positioning strips have at least two lengths, and the two ends of the positioning strips are respectively provided with fixing hole one and fixing hole two.

4. The electronic limiting device for a smoke curtain motor according to claim 3, characterized in that: The fixing holes one and two are fixed by bolts. The positioning strip is selectively installed. The smoke curtain is provided with a hanging baffle, and hooks are provided at both ends of the hanging baffle, and the hooks cooperate with the through hole one on the smoke curtain.

5. The electronic limiting device for a smoke curtain motor according to claim 4, characterized in that: The interior of the hanging baffle is a hollow structure, and the top is set with an opening. The hanging baffle includes a side wall plate one and a side wall plate two, and both the side wall plate one and the side wall plate two are provided with several through holes two.

6. The electronic limiting device for a smoke curtain motor according to claim 5, characterized in that: The hanging baffle is equipped with a water storage tank inside, and flame-retardant sponges are provided on both sides of the water storage tank. The water storage tank is provided with several through holes, and rubber plugs are provided on the through holes.