Fire-fighting detection telescopic rod for building
By designing a highly adaptable telescopic pole for fire protection testing in buildings, the problem of existing testing poles being unable to extend or retract has been solved, realizing a flexible and portable testing tool.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- BEIJING ZHONGAN JINGCHUANG FIRE PROTECTION TECHNOLOGY CO LTD
- Filing Date
- 2025-06-10
- Publication Date
- 2026-04-17
AI Technical Summary
Existing fire detection poles are usually designed as single vertical poles that cannot be freely extended or retracted, cannot meet specific usage length requirements, are inconvenient to carry, and affect the conduct of detection work.
A fire protection inspection telescopic rod for buildings has been designed, comprising a support sleeve, an inner rod within the sleeve, a detection component, a locking component, and a transmission component. The extension length is adjusted via the locking component, and the transmission component enables retraction, adapting to detection needs at different heights.
It enables flexible adjustment of the telescopic rod length, allowing the detection component to accurately reach the smoke detector position, quickly test the smoke detector sensitivity, and is easy to carry and transport.
Smart Images

Figure CN224135644U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fire protection testing technology, specifically a fire protection testing telescopic pole for buildings. Background Technology
[0002] Firefighting refers to eliminating hidden dangers, that is, preventing and resolving man-made, natural and accidental disasters encountered by people in their lives, work and study. With the increasing awareness of fire safety, automatic fire alarm systems are now widely used in various buildings. As an important component of automatic fire alarm systems, smoke detectors can issue timely alarms in the early stages of a fire, buying valuable time for people to escape and for fire fighting. Therefore, it is essential to regularly test and maintain the sensitivity of smoke detectors to ensure their normal operation.
[0003] When using existing fire detection poles, since smoke detectors are generally installed at a height of more than 2.4 meters above the ground between the ceiling and the roof, staff need to use the detection poles to check the smoke detectors. However, most detection poles are usually designed as a single vertical pole, which cannot be freely extended or retracted and cannot meet the length requirements of some specific uses. At the same time, the long vertical poles are inconvenient to carry and transport, which greatly affects the fire detection work. Utility Model Content
[0004] The purpose of this utility model is to provide a fire detection telescopic rod for buildings to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a fire detection telescopic pole for buildings, comprising:
[0006] A support sleeve, wherein an inner rod is slidably inserted coaxially inside the support sleeve, and a first annular seat is fixedly connected to the top of the inner rod. The top of the first annular seat is provided with a detection component to facilitate testing of the smoke detector.
[0007] A strip-shaped seat is installed at the top of the support sleeve. A boss is fixedly connected to the bottom of the strip-shaped seat. A receiving cavity is opened inside the boss. A rack is slidably connected inside the receiving cavity.
[0008] A U-shaped seat is installed at the bottom of the boss. One end of the rack is provided with a locking component for adjusting the extension length of the inner rod of the sleeve. The interior of the U-shaped seat is provided with a transmission component that allows the rack to slide along the inner wall of the receiving cavity.
[0009] Preferably, the detection assembly includes a second annular seat disposed above the first annular seat, a detector tester is fixedly connected to the top of the second annular seat, an external threaded post is fixedly connected to the bottom of the second annular seat, and an internal threaded groove corresponding to the external threaded post is opened at the top of the inner rod of the sleeve, and the external threaded post and the internal threaded groove are connected by threads.
[0010] Preferably, the bottom end of the support sleeve is provided with an anti-slip sleeve for increasing friction, and the anti-slip sleeve is made of rubber or silicone material.
[0011] Preferably, the engaging assembly includes a second locking tooth fixed to the outside of the inner rod of the sleeve, and a first locking tooth corresponding to the second locking tooth is provided at one end of the rack facing the inner rod of the sleeve, and one side of the first locking tooth is connected to the rack.
[0012] Preferably, a slider is fixedly connected to the top of the rack, and a groove corresponding to the slider is formed on the inner wall of the receiving cavity, with the slider located inside the groove.
[0013] Preferably, the transmission assembly includes a rotating shaft disposed inside the U-shaped seat, the rotating shaft being rotatably connected to both sides of the inner wall of the U-shaped seat, a gear being fixedly connected to the outer side of the rotating shaft, an adjusting handle being fixedly connected to one side of the gear, a spring being provided between the adjusting handle and the support sleeve, the spring being connected to the adjusting handle and the support sleeve respectively, and the top of the gear meshing with a rack.
[0014] Preferably, the support sleeve has a limiting groove inside, and a limiting block is slidably connected inside the limiting groove. The top of the limiting block is connected to the inner rod of the sleeve.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0016] This invention allows for easy adjustment of the extension length of the inner rod of the sleeve according to the actual installation height of the smoke detector via a locking assembly. This makes the overall length of the telescopic rod more adaptable to the detection height, facilitating the detection assembly to reach the smoke detector more accurately. The detection assembly enables quick detection of the smoke detector's sensitivity. The transmission assembly allows for the storage of the inner rod inside the support sleeve, facilitating the transport and handling of the support sleeve. Attached Figure Description
[0017] Figure 1 A schematic diagram of a preferred embodiment of the fire detection telescopic pole for buildings provided by this utility model;
[0018] Figure 2 A schematic diagram of the detection component structure provided by this utility model;
[0019] Figure 3 This is a schematic diagram of the engaging component structure provided by this utility model;
[0020] Figure 4 A schematic diagram of the internal structure of the support sleeve provided by this utility model.
[0021] In the diagram: 1. Support sleeve; 2. Inner rod of sleeve; 3. First annular seat; 4. Detection assembly; 41. Second annular seat; 42. Detector tester; 43. External threaded post; 44. Internal threaded groove; 5. Anti-slip sleeve; 6. Strip seat; 7. Boss; 8. U-shaped seat; 9. Receiving cavity; 10. Rack; 11. Engaging assembly; 111. First locking tooth; 112. Second locking tooth; 12. Transmission assembly; 121. Rotating shaft; 122. Gear; 123. Adjusting handle; 124. Spring; 13. Slider; 14. Slide groove; 15. Limiting groove; 16. Limiting block. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0023] Please see Figure 1-4As shown, a fire detection telescopic rod for buildings includes a support sleeve 1, an inner rod 2 coaxially and slidably inserted inside the support sleeve 1, a first annular seat 3 fixedly connected to the top of the inner rod 2, and a detection component 4 for testing smoke detectors on the top of the first annular seat 3. By setting the detection component 4, the sensitivity of the smoke detector can be quickly detected, which is beneficial for the detection and maintenance of the smoke detector. A strip-shaped seat 6 is installed at the top of the support sleeve 1, and a boss 7 is fixedly connected to the bottom of the strip-shaped seat 6. A receiving cavity 9 is opened inside the boss 7, and a rack 10 is slidably connected inside the receiving cavity 9. A U-shaped seat 8 is installed at the bottom of the boss 7, and one end of the rack 10 is provided with an adjustment mechanism. The locking assembly 11, which extends the inner rod 2 of the sleeve, allows operators to adjust the extension length of the inner rod 2 according to the actual installation height of the smoke detector. This makes the overall length of the telescopic rod more adaptable to the detection height, facilitating the detection assembly 4 to reach the smoke detector more accurately. The U-shaped seat 8 has a transmission assembly 12 inside that allows the rack 10 to slide along the inner wall of the receiving cavity 9. By setting the transmission assembly 12, the locking assembly 11 can be removed from restricting the inner rod 2 of the sleeve, allowing the inner rod 2 of the sleeve to slide freely inside the support sleeve 1. This enables the storage of the inner rod 2 inside the support sleeve 1, facilitating the carrying and transportation of the support sleeve 1.
[0024] The detection component 4 includes a second annular seat 41 disposed above the first annular seat 3. A detector tester 42 is fixedly connected to the top of the second annular seat 41, and an externally threaded post 43 is fixedly connected to the bottom of the second annular seat 41. The top of the inner rod 2 of the sleeve has an internally threaded groove 44 corresponding to the externally threaded post 43. The externally threaded post 43 and the internally threaded groove 44 are connected by threads. Figure 1 , Figure 2 As shown, it should be noted that the detector tester 42 is a common fire detection smoke emitter. It heats the smoke oil inside the storage tank through a heater. After the smoke oil is heated and atomized, it forms smoke. The smoke is then continuously blown towards the detection port of the smoke detector through the rod-shaped nozzle. The smoke detector is activated by observing whether it is working properly. In actual use, the detector tester 42 can be quickly disassembled and assembled through the external threaded post 43 at the bottom of the second annular seat 41 and the internal threaded groove 44 at the top of the inner rod 2 of the sleeve. When the detector tester 42 is not in use, the operator can remove it from the top of the inner rod 2 of the sleeve, which not only further reduces the overall footprint of the support sleeve 1, but also facilitates charging and smoke oil replenishment, thus further improving portability.
[0025] The bottom end of the support sleeve 1 is provided with an anti-slip sleeve 5 to increase friction. The anti-slip sleeve 5 is made of rubber or silicone material, such as... Figure 1 , Figure 4As shown, the anti-slip sleeve 5 can increase the friction between the support sleeve 1 and the worker's palm, thereby making the worker's grip on the support sleeve 1 more stable, which is beneficial to the detection work of the smoke detector.
[0026] The engaging assembly 11 includes a second engaging tooth 112 fixed to the outside of the inner sleeve rod 2. A first engaging tooth 111 corresponding to the second engaging tooth 112 is provided at one end of the rack 10 facing the inner sleeve rod 2. One side of the first engaging tooth 111 is connected to the rack 10, such as... Figure 1 , Figure 2 and Figure 3 As shown, when performing smoke detector testing, the operator can pull the inner rod 2 of the sleeve out of the support sleeve 1 according to the actual installation height of the smoke detector. Then, the rack 10 drives the first locking tooth 111 at one end to enter between the adjacent second locking tooth 112 on the outside of the inner rod 2. At this time, the inner rod 2 is restricted and cannot slide freely. The operator then holds the inner rod 2 and brings the detection component 4 at the top of the inner rod 2 close to the detection port of the smoke detector to perform a smoke spraying operation. This makes the overall length of the telescopic rod more adaptable to the detection height, making it easier for the detection component 4 to reach the position of the smoke detector more accurately. It should be noted that, in order to facilitate the operator to understand the length change of the inner rod 2 in a timely manner, a scale value can be set on the outside of the inner rod 2 for the operator to check.
[0027] A slider 13 is fixedly connected to the top of the rack 10. A groove 14 corresponding to the slider 13 is provided on the inner wall of the receiving cavity 9. The slider 13 is located inside the groove 14. Figure 3 As shown, by setting the slider 13 and the groove 14, the rack 10 can slide more smoothly inside the receiving cavity 9, which is beneficial to improving the working stability of the engaging assembly 11.
[0028] The transmission assembly 12 includes a rotating shaft 121 disposed inside the U-shaped seat 8. The rotating shaft 121 is rotatably connected to both sides of the inner wall of the U-shaped seat 8. A gear 122 is fixedly connected to the outer side of the rotating shaft 121. An adjusting handle 123 is fixedly connected to one side of the gear 122. A spring 124 is provided between the adjusting handle 123 and the support sleeve 1. The spring 124 is connected to both the adjusting handle 123 and the support sleeve 1. The top of the gear 122 meshes with the rack 10. Figure 1 , Figure 3As shown, after the smoke detector has completed its detection work, the gear 122 can be rotated around the shaft 121 by adjusting the handle 123. The gear 122 then drives the first locking tooth 111 to be pulled out from between the adjacent second locking tooth 112 on the outside of the inner rod 2 of the sleeve through the rack 10 meshing with it. At this time, the inner rod 2 of the sleeve is no longer restricted and can slide freely. After the inner rod 2 of the sleeve is completely retracted into the support sleeve 1, the spring 124 will drive the first locking tooth 111 to re-engage between the adjacent second locking tooth 112 on the outside of the inner rod 2 of the sleeve. This facilitates the carrying and transportation of the support sleeve 1.
[0029] The support sleeve 1 has a limiting groove 15 inside, and a limiting block 16 is slidably connected inside the limiting groove 15. The top of the limiting block 16 is connected to the inner rod 2 of the sleeve. Figure 2 , Figure 4 As shown, by setting the limiting groove 15 and the limiting block 16, the inner rod 2 of the sleeve can be prevented from extending excessively from the inside of the support sleeve 1, and the inner rod 2 of the sleeve can be prevented from separating from the support sleeve 1, which is conducive to improving the overall working stability of the support sleeve 1.
[0030] Working principle: First, the operator can easily adjust the extension length of the inner rod 2 of the sleeve according to the actual installation height of the smoke detector by using the locking component 11. This makes the overall length of the telescopic rod more adaptable to the detection height, allowing the detection component 4 to reach the position of the smoke detector more accurately. Then, the detection component 4 can quickly detect the sensitivity of the smoke detector, which is beneficial to the detection and maintenance of the smoke detector. After the detection of the smoke detector is completed, the transmission component 12 can release the restriction of the inner rod 2 of the sleeve by the locking component 11, allowing the inner rod 2 of the sleeve to slide freely inside the support sleeve 1. This realizes the storage of the inner rod 2 inside the support sleeve 1, which is convenient for the carrying and transportation of the support sleeve 1.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A fire detection telescopic pole for building, characterized in that, include: A support sleeve (1) is provided with a sleeve inner rod (2) that is slidably inserted coaxially inside the support sleeve (1). A first annular seat (3) is fixedly connected to the top of the sleeve inner rod (2). A detection component (4) is provided on the top of the first annular seat (3) to facilitate testing of the smoke detector. A strip seat (6) is installed at the top of the support sleeve (1). A boss (7) is fixedly connected to the bottom of the strip seat (6). A receiving cavity (9) is opened inside the boss (7). A rack (10) is slidably connected inside the receiving cavity (9). A U-shaped seat (8) is installed at the bottom of the boss (7). One end of the rack (10) is provided with a locking assembly (11) for adjusting the extension length of the inner rod (2) of the sleeve. The interior of the U-shaped seat (8) is provided with a transmission assembly (12) that allows the rack (10) to slide along the inner wall of the receiving cavity (9).
2. The fire protection inspection telescopic pole for buildings according to claim 1, characterized in that: The detection component (4) includes a second annular seat (41) disposed above the first annular seat (3). A detector tester (42) is fixedly connected to the top of the second annular seat (41), and an external threaded post (43) is fixedly connected to the bottom of the second annular seat (41). An internal threaded groove (44) corresponding to the external threaded post (43) is opened at the top of the sleeve inner rod (2). The external threaded post (43) and the internal threaded groove (44) are connected by threads.
3. The telescopic pole according to claim 1, wherein: The bottom end of the support sleeve (1) is provided with an anti-slip sleeve (5) for increasing friction. The anti-slip sleeve (5) is made of rubber or silicone material.
4. The telescopic pole according to claim 1, wherein: The engaging assembly (11) includes a second locking tooth (112) fixed to the outside of the inner rod (2) of the sleeve. The rack (10) has a first locking tooth (111) corresponding to the second locking tooth (112) at one end facing the inner rod (2). One side of the first locking tooth (111) is connected to the rack (10).
5. The fire detection telescopic pole for building according to claim 4, characterized in that: A slider (13) is fixedly connected to the top of the rack (10), and a groove (14) corresponding to the slider (13) is provided on the inner wall of the receiving cavity (9), and the slider (13) is located inside the groove (14).
6. The telescopic pole according to claim 1, wherein: The transmission assembly (12) includes a rotating shaft (121) disposed inside the U-shaped seat (8). The rotating shaft (121) is rotatably connected to both sides of the inner wall of the U-shaped seat (8). A gear (122) is fixedly connected to the outer side of the rotating shaft (121). An adjusting handle (123) is fixedly connected to one side of the gear (122). A spring (124) is provided between the adjusting handle (123) and the support sleeve (1). The spring (124) is connected to the adjusting handle (123) and the support sleeve (1) respectively. The top of the gear (122) meshes with the rack (10).
7. The telescopic pole according to claim 1, wherein: The support sleeve (1) has a limiting groove (15) inside, and a limiting block (16) is slidably connected inside the limiting groove (15). The top of the limiting block (16) is connected to the inner rod (2) of the sleeve.