Convenient detection rod of building fire-fighting facility fire detector detection device

By combining an adjustable telescopic sleeve and a pulley telescopic tube, and using a spring to assist in adjusting the pulley, the problem of laborious detection by fire detectors in tall spaces is solved, achieving efficient and labor-saving detection results.

CN223768628UActive Publication Date: 2026-01-06CONSTR FIRE PROTECTION ESTAB CHECKING & TESTING CENT CO LTD
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Patent Information

Application Number
CN202520511364.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-21
Publication Date
2026-01-06
Estimated Expiration
2035-03-21

AI Technical Summary

Technical Problem

In tall spaces, manually supporting multi-section sleeves to inspect fire detectors is laborious, resulting in low work efficiency.

Method used

The device employs a combination of an adjustable telescopic sleeve and a pulley telescopic tube, utilizing the spring force to assist in adjusting the pulley's extension and retraction. Combined with the pulley and brake handle, it achieves accurate positioning and effortless movement of the detection device.

Benefits of technology

This enables labor-saving operation during fire detector detection in tall spaces, improving detection efficiency.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model aims to provide a convenient detection rod of a building fire-fighting facility fire detector detection device, which is characterized in that an upper port of an adjustable telescopic sleeve 1 is connected with a detection device 2 of a fire detector, a lower port of the adjustable telescopic sleeve 1 is connected with a belt wheel telescopic tube 3, the belt wheel telescopic tube 3 contains a spring 6, the lower part of the spring 6 is connected with a pulley rod 12, and the pulley rod 12 is connected with the adjustable telescopic sleeve 1. The pulley 4 is connected below the pulley rod 12, and the extension or retraction length of the pulley rod 12 is adjusted and locked through the adjusting hand wheel 5. The utility model has the effects that a labor-saving way is provided for operation and translation of a high rod in the detection process of the fire detector in a high and large space, and high-efficiency and convenient detection is realized.
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Description

Technical Field

[0001] This utility model relates to a convenient detection rod for a fire detector detection device for building fire protection facilities. Background Technology

[0002] Fire detectors in tall spaces, such as aspirating smoke detectors, typically have their sampling networks installed at high positions (above 12 meters). This requires a multi-section sleeve-mounted detection pole to support the smoke detector detection device. Because the detection time is long and manually supporting the pole is laborious, the work efficiency is low. Therefore, a labor-saving method and device for detection and relocation is being considered. Summary of the Invention

[0003] The purpose of this utility model is to provide a convenient detection rod for a fire detector detection device in building fire protection facilities. Its features include: an adjustable telescopic sleeve 1 with its upper end connected to the fire detector's detection device 2; a pulley telescopic tube 3 with its lower end connected to the upper end; a spring 6 within the pulley telescopic tube 3; a pulley rod 12 connected to the spring 6; and a pulley 4 connected to the pulley rod 12. The extension or retraction length of the pulley rod 12 is adjusted and locked by an adjusting handwheel 5. The spring 6 uses its own elasticity as an auxiliary component for adjusting the extension or retraction of the pulley rod 12. The pulley 4 has a brake handle 7. The adjusting handwheel 5 is connected to a magnetic adjusting screw 8. The magnetic adjusting screw 8, through a nut 9 fixed to the pulley telescopic tube 3, rotates and applies pressure to a pressure block 10. The steel pressure block 10 is connected to a rubber block 11. The rubber block 11, under the adjustment of the adjusting handwheel 5, generates loosening and tightening pressure on the pulley telescopic tube 3, thus fixing the pulley telescopic tube 3 after extension or retraction.

[0004] The adjustable telescopic sleeve 1 can be adjusted to any telescopic length based on the detection height and can be locked to accommodate objects at different heights. The pulley telescopic rod 3 can precisely adjust the detection device 2 of the fire detector to accurately position and detect the object. During adjustment, press down the brake handle 7 to lock the pulley 4, loosen the adjusting handwheel 5, so that the steel pressure block 10 and rubber block 11 release the pressure on the pulley telescopic tube 3. The elastic force of the spring 6 allows the pulley telescopic rod 3 to extend, lifting the adjustable telescopic sleeve 1 upwards (the design makes the elastic force of the spring 6 slightly greater than the sum of the telescopic sleeve 1, the weight of the detection device 2, and the sliding friction between the tubes). Then, manually grasp the adjustable telescopic sleeve 1 and press it downwards to allow the detection device 2 to accurately align with the fire detector being detected. Finally, tighten the adjusting handwheel 5. In this way, during the detection of fire detectors at high altitudes, it is not necessary to keep the detection rod raised by hand, which saves a lot of effort. Since the height of most fire detectors on site is basically the same, the adjusting handwheel 5 does not need to be adjusted frequently. After each fire detector has finished its detection, simply release the brake handle 7, and the person holding the adjustable telescopic sleeve 1 can use the pulley 4 to drag the telescopic sleeve 1 to move it, without having to lift the entire pole by hand, thus achieving the same labor-saving effect.

[0005] The advantage of this invention is that it provides a labor-saving method for operating and moving high poles during the detection process of fire detectors in tall spaces, achieving efficient and convenient detection. Attached Figure Description

[0006] Figure 1 A schematic diagram of the structure of this utility model. Detailed Implementation

[0007] Example

[0008] See Figure 1This utility model is used for sampling networks of aspirating smoke detectors in tall spaces, which are often installed at high positions (above 12 meters). The upper end of the adjustable telescopic sleeve 1 is connected to the detection device 2 of the fire detector, and the lower end of the adjustable telescopic sleeve 1 is connected to a pulley telescopic tube 3. The pulley telescopic tube 3 contains a spring 6, and a pulley rod 12 is connected below the spring 6. A pulley 4 (the number of pulleys 4 is not limited to one) is connected below the pulley rod 12. The extension or retraction length of the pulley rod 12 is adjusted and locked by adjusting the handwheel 5. The spring 6... The pulley 4 utilizes its own elasticity as an auxiliary component to adjust the extension or retraction of the pulley rod 12. The pulley 4 is equipped with a brake handle 7, and the adjusting handwheel 5 is connected to a magnetic adjusting screw 8. The magnetic adjusting screw 8, relying on a nut 9 fixed to the pulley telescopic tube 3, rotates and applies pressure to the steel pressure block 10. The steel pressure block 10 is connected to a rubber block 11. The magnetic adjusting screw 8 uses its magnetic properties to firmly engage with the contact concave surface of the steel pressure block 10, preventing the steel pressure block from loosening during adjustment and rotation. Under the adjustment of the adjusting handwheel 5, the rubber block 11 applies loosening or tightening pressure to the pulley telescopic tube 3, thus fixing the pulley telescopic tube 3 after extension or retraction.

[0009] The adjustable telescopic sleeve 1 can be adjusted to any telescopic length based on the detection height and can be locked to accommodate objects at different heights. The pulley telescopic rod 3 can precisely adjust the detection device 2 of the fire detector to accurately position and detect the object. During adjustment, loosen the adjusting handwheel 5 to release the pressure of the steel pressure block 10 and rubber block 11 on the pulley telescopic sleeve 3. The spring force of the spring 6 allows the pulley telescopic rod 3 to extend, extending the adjustable telescopic sleeve 1 upwards (the spring force is designed to be slightly greater than the sum of the weight of the telescopic sleeve 1 and the detection device 2). Then, manually grasp the adjustable telescopic sleeve 1 and press it downwards to allow the detection device 2 to accurately align with the fire detector being detected. Then, tighten the adjusting handwheel 5 and finally press down the brake handle 7 to lock the pulley 4. In this way, during the detection of fire detectors at high altitudes, it is not necessary to keep the detection rod raised by hand, which saves a lot of effort. Since the height of most fire detectors on site is basically the same, the adjusting handwheel 5 does not need to be adjusted frequently. After each fire detector completes its detection, simply release the brake handle 7, and a person can hold the adjustable telescopic sleeve 1 and drag it using the pulley 4 for support, without needing to lift the entire pole by hand, thus achieving the same labor-saving effect. The adjustable telescopic sleeve 1 is made of fiberglass to reduce weight.

Claims

1. A convenient detection rod for a fire detector detection device of a building fire protection facility, characterized in that: The adjustable telescopic sleeve (1) is connected with the detecting device (2) of the fire detector at the upper end, and is connected with the pulley telescopic pipe (3) at the lower end. The pulley telescopic pipe (3) contains a spring (6), the spring (6) is connected with the pulley rod (12) at the lower end, the pulley rod (12) is connected with the pulley (4) at the lower end, the length of the pulley rod (12) is adjusted to be extended or retracted and locked by adjusting the hand wheel (5), the spring (6) uses its own elastic force as an auxiliary part for adjusting the extension or retraction of the pulley rod (12), the pulley (4) is provided with a brake handle (7), the hand wheel (5) is connected with the magnetic adjusting screw rod (8), the magnetic adjusting screw rod (8) rotates and presses the steel pressing block (10) through the pulley telescopic pipe (3) by relying on the nut (9) fixed on the pulley telescopic pipe (3), the steel pressing block (10) is connected with the rubber block (11), the rubber block (11) generates loose or tight pressure on the pulley telescopic pipe (3) under the adjustment of the hand wheel (5), and the fixed pulley telescopic pipe (3) after the extension or retraction is realized.