A scalable directional hot-ball anemometer

Abstract

This invention discloses a retractable directional hot-wire anemometer, relating to the field of pipeline wind speed detection. The retractable directional hot-wire anemometer includes a handle and a telescopic rod movably inserted into the handle. An inner tube is fixedly mounted at the front end of the telescopic rod, and an insulating base is installed inside the inner tube. A welding needle is fixedly inserted inside the insulating base, and an anemometer probe is mounted at the front end of the welding needle. A probe circuit board is fixedly connected to the end of the insulating base. A protective sleeve is rotatably connected to the outer surface of the inner tube. Ventilation slots are formed on the front outer surfaces of both the protective sleeve and the inner tube. This retractable directional hot-wire anemometer ensures accurate positioning of the anemometer probe at the sensor's air inlet, guaranteeing testing accuracy and product consistency. Simultaneously, the protective sleeve effectively protects the anemometer probe, and the use of a graduated telescopic rod facilitates insertion into the pipeline.

Description

Technical Field

[0001] This invention relates to the field of pipeline wind speed detection technology, specifically a retractable directional hot-ball wind speed sensor. Background Technology

[0002] In wind speed testing scenarios such as duct wind speed testing, ventilation equipment vents, and ambient wind speed testing, wind speed sensors often need to be able to extend and retract freely to adapt to different testing conditions. When not in use, they should be able to shrink and shorten for easy portability. For example, for ducts of different diameters, if it is desired to test the wind speed at different locations on their cross-sections, a rod-mounted wind speed sensor with a certain amount of extension and retraction is required. At the same time, in order to facilitate direct reading of the depth inserted into the duct, an accurate scale needs to be designed on the wind speed rod. Furthermore, when the sensor rod extends and retracts, the sensor lead wires need to move synchronously to ensure the safety of the nodes.

[0003] In addition, wind fields fluctuate greatly and change frequently in most scenarios, so wind speed sensors need to have a very high response to meet the testing requirements. A high-response wind speed probe needs to be as small as possible to reduce its thermal inertia and improve its response speed. The biggest problem with small-sized wind speed probes is that they are easily damaged, so a protective structure that can be operated quickly is required.

[0004] This invention provides a freely expandable directional wind speed structure, which solves problems related to the expandable structure, readable length, quick-operation protection, and accurate positioning of the wind sensor probe in miniature directional hot-ball anemometers. Summary of the Invention

[0005] (a) Technical problems to be solved

[0006] To address the shortcomings of existing technologies, this invention discloses a stretchable directional hot-ball anemometer to solve the problems mentioned in the background section.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, the present invention provides the following technical solution: a retractable directional hot-wire anemometer, comprising;

[0009] The grip and the telescopic rod that is flexibly inserted inside the grip;

[0010] An inner tube is fixedly installed at the front end of the telescopic rod, an insulating base is installed inside the inner tube, a welding needle is fixedly inserted inside the insulating base, a wind speed probe is installed at the front end of the welding needle, and a probe circuit board is fixedly connected to the end of the insulating base.

[0011] A protective sleeve is rotatably connected to the outer surface of the inner tube, and ventilation grooves are provided on the front outer surfaces of both the protective sleeve and the inner tube.

[0012] Preferably, a fixing head is fixedly connected to the front end of the telescopic rod, a rotating seat is fixedly connected to the front end of the fixing head, and the inner tube is fixedly connected to the rotating seat.

[0013] Preferably, the outer surface of the fixing head is provided with a locking post, the bottom of the locking post is provided with a memory spring, the front end of the handle is fixedly connected to a fixing ring, the outer surface of the fixing ring is provided with a locking groove, and the locking post is movably engaged in the inside of the locking groove.

[0014] Preferably, a positioning block is fixedly connected to the outer surface of the rotating seat, a positioning groove is formed on the outer surface of the protective sleeve, the positioning block is slidably connected inside the positioning groove, and a vertical heat dissipation groove is formed on the outer surface of the protective sleeve.

[0015] Preferably, the end of the grip is threaded with a sealing head, and the outer surface of the telescopic rod is provided with a scale groove.

[0016] Preferably, the telescopic rod is formed by movably inserting multiple hollow tubes of different diameters. A limiting groove is opened inside the hollow tube. An anti-detachment baffle is fixedly connected to the end of the hollow tube. The anti-detachment baffle is slidably connected inside the limiting groove. An anti-slip pad is fixedly connected to the side of the anti-detachment baffle.

[0017] Preferably, a pressure block is fixedly connected to the top of the card post, and a movable groove is opened at the front end of the card slot, with the pressure block slidably connected inside the movable groove.

[0018] This invention discloses a retractable directional hot-wire anemometer, which has the following advantages:

[0019] 1. This retractable directional hot-wire anemometer sensor rotates the protective sleeve, causing the positioning block to rotate inside the positioning groove. At this time, the ventilation groove on the outer surface of the protective sleeve and the inner tube are aligned, exposing the anemometer probe. Then, the protective sleeve is placed inside the pipe, with the ventilation groove facing the airflow direction, allowing the airflow to pass through the ventilation groove for wind speed detection. The micro-sized anemometer probe is welded and fixed using a welding pin and insulating material structure, ensuring the precise position of the anemometer probe at the sensor's air inlet, guaranteeing testing accuracy and product consistency. The use of a concentric sliding sleeve makes operation and storage convenient and effectively protects the anemometer probe.

[0020] 2. This telescopic directional hot-wire anemometer allows for length adjustment by stretching the telescopic rod during use. The rod's interior is secured by an anti-slip baffle that slides within a limiting groove, preventing misalignment of the scale due to rotation. Furthermore, the anti-slip pad prevents the telescopic rod from slipping during use, facilitating its insertion into pipes.

[0021] 3. This retractable directional hot-wire anemometer compresses the memory spring by pressing down the pressure block on the outer surface of the fixed head. Then, the fixed head is moved closer to the handle and inserted into the handle. At the same time, the pressure block slides along the movable groove into the slot. When the pressure block is released, the locking post moves upward and engages with the slot under the action of the memory spring, making the device easy to store and carry. Attached Figure Description

[0022] Figure 1 This is a cross-sectional view of the internal structure of the inner tube of the present invention;

[0023] Figure 2 This is a schematic diagram of the overall outer surface structure of the present invention;

[0024] Figure 3 This is a schematic diagram of the protective sleeve structure of the present invention;

[0025] Figure 4 For the present invention Figure 3 Enlarged view of part A of the structure;

[0026] Figure 5 This is a cross-sectional view of the internal structure of the telescopic rod of the present invention;

[0027] Figure 6 This is a schematic diagram of the outer surface structure of the wind speed probe of the present invention.

[0028] In the diagram: 1. Protective sleeve; 2. Probe circuit board; 3. Inner tube; 4. Insulating base; 5. Welding needle; 6. Wind speed probe; 7. Handle; 8. Telescopic rod; 9. Scale groove; 10. Sealing head; 11. Ventilation slot; 12. Fixing head; 13. Rotating seat; 14. Positioning block; 15. Vertical heat dissipation slot; 16. Positioning groove; 17. Locking post; 18. Memory spring; 19. Pressure block; 20. Limiting groove; 21. Anti-detachment baffle; 22. Anti-slip pad; 23. Fixing ring; 24. Locking groove. Detailed Implementation

[0029] This invention discloses a retractable directional hot-wire anemometer, such as... Figure 1-6 As shown, including;

[0030] The grip 7 and the telescopic rod 8 that is movably inserted into the grip 7;

[0031] An inner tube 3 is fixedly installed at the front end of the telescopic pole 8. An insulating base 4 is installed inside the inner tube 3. A welding needle 5 is fixedly inserted inside the insulating base 4. A wind speed probe 6 is installed at the front end of the welding needle 5. A probe circuit board 2 is fixedly connected to the end of the insulating base 4.

[0032] A protective sleeve 1 is rotatably connected to the outer surface of the inner tube 3. Ventilation grooves 11 are provided on the outer surfaces of both the protective sleeve 1 and the inner tube 3.

[0033] The front end of the telescopic rod 8 is fixedly connected to a fixing head 12, and the front end of the fixing head 12 is fixedly connected to a rotating seat 13. The inner tube 3 is fixedly connected to the rotating seat 13.

[0034] The outer surface of the fixed head 12 is provided with a locking post 17, and the bottom of the locking post 17 is provided with a memory spring 18. The front end of the handle 7 is fixedly connected to a fixing ring 23, and the outer surface of the fixing ring 23 is provided with a locking groove 24. The locking post 17 is movably locked inside the locking groove 24.

[0035] A positioning block 14 is fixedly connected to the outer surface of the rotating seat 13, a positioning groove 16 is opened on the outer surface of the protective sleeve 1, the positioning block 14 is slidably connected inside the positioning groove 16, and a vertical heat dissipation groove 15 is opened on the outer surface of the protective sleeve 1.

[0036] The end of the handle 7 is threaded with a sealing head 10, and the outer surface of the telescopic rod 8 is provided with a scale groove 9.

[0037] The telescopic rod 8 is made up of multiple hollow tubes of different diameters that are movably connected together. A limiting groove 20 is opened inside the hollow tube. An anti-detachment baffle 21 is fixedly connected to the end of the hollow tube. The anti-detachment baffle 21 is slidably connected inside the limiting groove 20. An anti-slip pad 22 is fixedly connected to the side of the anti-detachment baffle 21.

[0038] A pressure block 19 is fixedly connected to the top of the locking post 17, and a movable groove is opened at the front end of the locking groove 24. The pressure block 19 is slidably connected inside the movable groove.

[0039] During assembly, the device is manufactured by laser engraving on the metal telescopic rod 8 to accurately display the distance from the wind speed probe 6 to a certain mark on the tube; the copper welding needle 5 is fixed on the insulating base 4, and then the insulating base 4 is fixed on the process device for precise positioning. On the process device, the wind speed probe 6 is welded to the welding needle 5, the circuit and the pin connection of the welding needle 5, as well as the welding of the circuit and the extension lead; then the welded components are fixed on the inner tube 3 with set screws; the protective sleeve 1 is put on, and the telescopic rod 8 and the inner tube 3 are fixed with set screws.

[0040] The welding needle 5 is fixed to the ceramic insulating base 4 with epoxy glue; the hot air anemometer 6 needs to be located in the middle of the welding needle 5, with bidirectional wires, and is welded to the top of the welding needle 5. After welding, the leads at both ends are in a taut state. This process is completed on the welding process device. The compensation temperature and air temperature sensors are welded to the probe circuit board 2, and the probe circuit board 2 is fixed to the ceramic insulating base 4 with M2 screws; then the leads are welded to the circuit.

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings and through embodiments.

[0042] Example 1

[0043] like Figure 1-6 The retractable directional hot-wire anemometer shown includes:

[0044] The grip 7 and the telescopic rod 8 that is movably inserted into the grip 7;

[0045] An inner tube 3 is fixedly installed at the front end of the telescopic pole 8. An insulating base 4 is installed inside the inner tube 3. A welding needle 5 is fixedly inserted inside the insulating base 4. A wind speed probe 6 is installed at the front end of the welding needle 5. A probe circuit board 2 is fixedly connected to the end of the insulating base 4.

[0046] A protective sleeve 1 is rotatably connected to the outer surface of the inner tube 3. Ventilation grooves 11 are provided on the outer surfaces of both the protective sleeve 1 and the inner tube 3.

[0047] The front end of the telescopic rod 8 is fixedly connected to a fixing head 12, and the front end of the fixing head 12 is fixedly connected to a rotating seat 13. The inner tube 3 is fixedly connected to the rotating seat 13.

[0048] A positioning block 14 is fixedly connected to the outer surface of the rotating seat 13, a positioning groove 16 is opened on the outer surface of the protective sleeve 1, the positioning block 14 is slidably connected inside the positioning groove 16, and a vertical heat dissipation groove 15 is opened on the outer surface of the protective sleeve 1.

[0049] When in use, the device rotates the protective sleeve 1, causing the positioning block 14 to rotate inside the positioning groove 16. At this time, the ventilation groove 11 on the outer surface of the protective sleeve 1 and the inner tube 3 are aligned, exposing the wind speed probe 6. Then, the protective sleeve 1 is placed inside the pipe, with the ventilation groove 11 facing the airflow direction, allowing the airflow to pass through the ventilation groove 11 for wind speed detection. The micro-sized wind speed probe 6 is welded and fixed by the welding needle 5 and the insulating material structure, ensuring the precise position of the wind speed probe 6 at the sensor air inlet, guaranteeing test accuracy and product consistency. The use of a concentric sliding sleeve makes operation convenient during use and storage, effectively protecting the wind speed probe 6.

[0050] Example 2

[0051] like Figure 1-6 The image shows a retractable directional hot-ball anemometer. The outer surface of the fixed head 12 is provided with a locking post 17, and the bottom of the locking post 17 is provided with a memory spring 18. The front end of the handle 7 is fixedly connected to a fixing ring 23, and the outer surface of the fixing ring 23 is provided with a locking groove 24. The locking post 17 is movably locked into the inside of the locking groove 24.

[0052] The end of the handle 7 is threaded with a sealing head 10. The outer surface of the telescopic rod 8 is provided with a scale groove 9. The telescopic rod 8 is made of multiple hollow tubes of different diameters that are movably inserted. The inside of the hollow tube is provided with a limiting groove 20. The end of the hollow tube is fixedly connected with an anti-detachment baffle 21. The anti-detachment baffle 21 is slidably connected inside the limiting groove 20. The side of the anti-detachment baffle 21 is fixedly connected with an anti-slip pad 22. The top of the locking post 17 is fixedly connected with a pressure block 19. The front end of the locking groove 24 is provided with a movable groove. The pressure block 19 is slidably connected inside the movable groove.

[0053] During use, the telescopic rod 8 can be stretched to adjust its length. The telescopic rod 8 slides inside the limiting groove 20 through the anti-detachment baffle 21 to limit its movement and prevent the scale from being misaligned due to rotation. The anti-slip pad 22 can prevent the telescopic rod 8 from sliding during use, thus making it easy to insert into the pipe.

[0054] After use, press down the pressure block 19 on the outer surface of the fixing head 12 to compress the memory spring 18, and then move the fixing head 12 closer to the handle 7 so that the fixing head 12 is inserted into the handle 7. At the same time, the pressure block 19 slides along the movable groove into the slot 24. At this time, release the pressure block 19, and under the action of the memory spring 18, the locking post 17 moves upward and is movably locked into the slot 24, making the device easy to store and carry.

[0055] 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 illustrative of the principles of 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 this invention is defined by the appended claims and their equivalents.

Claims

1. A telescopic directional hot-ball wind speed sensor, comprising: a handle (7) and a telescopic rod (8) movably inserted into the handle (7); characterized in that; a front end of the telescopic rod (8) is fixedly provided with an inner tube (3), an inside of the inner tube (3) is provided with an insulating base (4), the insulating base (4) is fixedly inserted with a soldering pin (5), a front end of the soldering pin (5) is provided with a wind speed probe (6), and an end of the insulating base (4) is fixedly connected with a probe circuit board (2); an outer surface of the inner tube (3) is rotatably connected with a protective sleeve (1), and the protective sleeve (1) and the inner tube (3) are both provided with a ventilation groove (11) on the outer surface; a front end of the telescopic rod (8) is fixedly connected with a fixed head (12), the fixed head (12) is fixedly connected with a rotating seat (13), and the inner tube (3) is fixedly connected with the rotating seat (13); an outer surface of the fixed head (12) is provided with a clamping column (17), a bottom of the clamping column (17) is provided with a memory spring (18), a front end of the handle (7) is fixedly connected with a fixed ring (23), the fixed ring (23) is provided with a clamping groove (24) on the outer surface, and the clamping column (17) is movably clamped in the clamping groove (24).

2. A retractable directional hot sphere wind speed sensor according to claim 1, characterized in that: an outer surface of the rotating seat (13) is fixedly connected with a positioning block (14), the protective sleeve (1) is provided with a positioning groove (16) on the outer surface, the positioning block (14) is slidably connected in the positioning groove (16), and the protective sleeve (1) is provided with a vertical heat dissipation groove (15) on the outer surface.

3. A retractable directional hot sphere wind speed sensor according to claim 2, wherein: an end of the handle (7) is threadedly connected with a blocking head (10), and an outer surface of the telescopic rod (8) is provided with a scale groove (9).

4. A retractable directional hot sphere wind speed sensor according to claim 3, wherein: the telescopic rod (8) is movably inserted by a plurality of hollow tubes with different diameters, the hollow tubes are provided with a limiting groove (20) in the inside, an end of the hollow tube is fixedly connected with an anti-falling baffle (21), the anti-falling baffle (21) is slidably connected in the limiting groove (20), and a side of the anti-falling baffle (21) is fixedly connected with an anti-skid rubber pad (22).

5. A retractable directional hot sphere wind speed sensor according to claim 4, wherein: a top end of the clamping column (17) is fixedly connected with a pressing block (19), a front end of the clamping groove (24) is provided with a movable groove, and the pressing block (19) is slidably connected in the movable groove.

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