A wind speed detection device for fire detection

Abstract

The utility model provides a kind of wind speed detection equipment for fire detection, it is related to fire detection technical field, including mobile base, the upper portion of mobile base is provided with height adjusting mechanism, height adjusting mechanism includes adjusting sleeve, the lower end of adjusting sleeve is fixedly connected with the upper end of mobile base, the inner bottom wall of mobile base is fixedly installed with first servo motor, wind speed sensor height can be accurately adjusted to pipeline level by height adjusting mechanism, without artificial climbing, folding storage mechanism can fold storage swing arm, reduce transport space, facilitate transportation, support mechanism can make antiskid support plate and pipeline inner wall support fixed, avoid wind speed sensor in pipeline shake, guarantee detection accuracy, solve the problem that the push mechanism of traditional wind speed detection equipment occupies large space when transporting, wind speed detector is easily shaken in pipeline to cause the problem of low detection accuracy, to improve the safety, convenience and accuracy effect of wind speed detection in fire detection.

Description

Technical Field

[0001] This utility model relates to the field of fire protection testing technology, and in particular to a wind speed testing device for fire protection testing. Background Technology

[0002] In the field of fire protection, wind speed detection equipment is commonly used to measure the flow of air in ventilation ducts, thereby reducing the incidence of fires. It plays a crucial role in fire protection. Currently, most wind speed detection equipment used in fire protection testing employs ordinary anemometers. These anemometers utilize high-performance wind speed sensors and a microcomputer-controlled detection and control system, which can simultaneously monitor and display changes in wind speed. They are stable, reliable, highly sensitive, and accurate, and can operate for extended periods in harsh environments. Anemometers are often used for handheld measurements. However, in real life, ventilation ducts are generally no less than 3 meters high, usually requiring the use of ladders or similar equipment for measurement. This method of measurement, however, poses safety risks.

[0003] For example, a wind speed detection device for fire detection disclosed in Chinese patent literature (publication number: CN222599674U) uses a fixing mechanism to clamp the detector. By setting a rotating mechanism, it can drive the lifting mechanism and the pushing mechanism to rotate, thereby driving the detector in the fixing mechanism to rotate, which facilitates the adjustment of the detector's position. By setting a lifting mechanism, the height of the pushing mechanism and the fixing mechanism can be adjusted, thereby adjusting the height of the detector. By setting a pushing mechanism, the detector in the fixing mechanism can be pushed into the pipe, thereby obtaining more accurate detection data. It eliminates the need for manual climbing and hand-holding, reducing risks.

[0004] However, although the pushing mechanism can be retracted when not in use, it still remains horizontal. Combined with the height of the vertical pole of the lifting mechanism, it occupies a large space during transportation, making it prone to bumps and inconvenient to transport. Furthermore, when the connecting rod carries the anemometer deep into a ventilation duct with a diameter of 30-50cm, the high-speed airflow of 8-15 meters per second inside the duct will create strong turbulence. Since the telescopic arm of the pushing mechanism adopts a single-rod support structure, it will generate high-frequency vibration under the impact of the airflow. This vibration is directly transmitted to the anemometer, causing fluctuations in the detection data and thus reducing the detection accuracy. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies, such as the inconvenience of storing and transporting wind speed detection equipment when not in use, and the tendency to vibrate during detection, which affects the detection results.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A wind speed detection device for fire detection includes a movable base, and a height adjustment mechanism is provided above the movable base;

[0008] The height adjustment mechanism includes an adjustment sleeve, the lower end of which is fixedly connected to the upper end of the movable base. A first servo motor is fixedly installed on the inner bottom wall of the movable base. An adjustment screw is fixedly installed on the output shaft of the first servo motor through a coupling. One end of the adjustment screw passes through the interior of the adjustment sleeve and is threadedly connected to a first threaded sleeve. The upper end of the first threaded sleeve passes through and extends above the adjustment sleeve.

[0009] The upper end of the first threaded sleeve is provided with a folding and storage mechanism.

[0010] Preferably, a limiting block is fixedly sleeved on the lower end of the first threaded sleeve, and the outer side of the limiting block is slidably sleeved with the inner wall of the adjusting sleeve.

[0011] Preferably, the folding and storage mechanism includes a support base, and rotating rods are rotatably connected to the inner walls of both sides of the support base via bearings. A swing arm is fixedly sleeved on the outside of the rotating rods.

[0012] Preferably, one end of the rotating rod extends to the front of the support base and is fixedly sleeved with a first worm gear, and a second servo motor is fixedly installed on the front of the support base, and the output shaft of the second servo motor is fixedly installed with a first worm gear through a coupling.

[0013] Preferably, the outer surface of the first worm meshes with the tooth surface of the first worm wheel, a wind speed sensor is fixedly installed above one end of the swing arm, and a support mechanism is provided inside the swing arm;

[0014] The support mechanism includes a mounting block, the outside of which is fixedly sleeved with the inner wall of the swing arm, and the inner top wall of the mounting block is fixedly connected with symmetrically distributed fixing blocks.

[0015] Preferably, the inner walls of the two fixing blocks are rotatably connected to a bidirectional lead screw via bearings, a second worm gear is fixedly sleeved on the outside of the bidirectional lead screw, and symmetrically distributed second threaded sleeves are threadedly connected to the outside of the bidirectional lead screw. One end of each of the two second threaded sleeves passes through and extends to the front and back of the mounting block, respectively.

[0016] Preferably, one end of the second threaded sleeve is fixedly connected to an anti-slip support plate, a guide block is fixedly connected to the outside of the threaded sleeve, a guide rod is slidably sleeved on the inner wall of the guide block, one end of the guide rod is fixedly connected to the front of the fixed block, a third servo motor is fixedly installed on the inner bottom wall of the mounting block, and a second worm is fixedly installed on the output shaft of the third servo motor through a coupling, the outer surface of the second worm meshing with the tooth surface of the second worm wheel.

[0017] Compared with the prior art, the beneficial effects of this utility model are:

[0018] In this invention, the height of the wind speed sensor can be precisely adjusted to the horizontal level of the pipe through the height adjustment mechanism, eliminating the need for manual climbing. The folding and storage mechanism can fold and store the swing arm, reducing transportation space and facilitating transport. The support mechanism can fix the anti-slip support plate to the inner wall of the pipe, preventing the wind speed sensor from shaking inside the pipe and ensuring detection accuracy. This invention solves the problems of traditional wind speed detection equipment, such as the large space occupied by the pushing mechanism during transportation and the low detection accuracy caused by the wind speed detector shaking inside the pipe. Thus, it improves the safety, convenience, and accuracy of wind speed detection in fire protection inspections. Attached Figure Description

[0019] Figure 1 A schematic diagram of the main structure of a wind speed detection device for fire detection provided by this utility model;

[0020] Figure 2 A perspective view of the adjusting sleeve structure of a wind speed detection device for fire detection provided by this utility model;

[0021] Figure 3 A perspective view of a support structure for a wind speed detection device used for fire detection provided by this utility model;

[0022] Figure 4 An exploded view of the installation block structure of a wind speed detection device for fire protection testing provided by this utility model.

[0023] Legend: 1. Movable base; 2. Adjusting sleeve; 21. First servo motor; 22. Adjusting screw; 23. First threaded sleeve; 24. Limiting block; 3. Support base; 31. Rotating rod; 32. First worm gear; 33. Second servo motor; 34. First worm; 35. Wind speed sensor; 36. Swing arm; 4. Mounting block; 41. Fixing block; 42. Bidirectional screw; 43. Second worm gear; 44. Second threaded sleeve; 45. Anti-slip support plate; 46. Guide block; 47. Guide rod; 48. Third servo motor; 49. Second worm. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0026] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein in the description of this invention is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0028] Example

[0029] like Figures 1-4 As shown, this utility model provides a technical solution: a wind speed detection device for fire detection, including a movable base 1. The movable base 1 serves as the basic load-bearing component of the entire device, providing a stable support platform for the various mechanisms above.

[0030] The height adjustment mechanism above it forms the main frame for height adjustment through an adjusting sleeve 2 whose lower end is fixedly connected to the upper end of the movable base 1. The first servo motor 21, which is fixedly installed on the inner bottom wall of the movable base 1, is the power source for height adjustment. When the first servo motor 21 is started, its output shaft drives the adjusting screw 22 to rotate through a coupling.

[0031] Since the adjusting screw 22 is threadedly connected to the first threaded sleeve 23, and the limiting block 24 fixedly sleeved on the lower end of the first threaded sleeve 23 is slidably sleeved on the inner wall of the adjusting sleeve 2, the limiting block 24 plays the role of restricting the first threaded sleeve 23 to move only along the axial direction of the adjusting sleeve 2.

[0032] In this way, the rotation of the adjusting screw 22 will be converted into the upward or downward movement of the first threaded sleeve 23 within the adjusting sleeve 2, thereby driving the folding and storage mechanism and wind speed sensor 35 connected to the upper end of the first threaded sleeve 23, and other components to be precisely adjusted to the horizontal height of the pipe.

[0033] This height adjustment method eliminates the need for manual climbing with the aid of ladders, greatly reducing the safety risks for fire safety inspectors when conducting wind speed tests. It also improves the accuracy and efficiency of height adjustment, creating convenient conditions for subsequent wind speed testing.

[0034] The folding and storage mechanism at the upper end of the first threaded sleeve 23 is mounted on the support base 3 as the core carrier. The rotating rods 31, which are rotatably connected to the inner walls of both sides of the support base 3 via bearings, can rotate flexibly, providing a rotation axis for the swing arm 36 to swing.

[0035] The swing arm 36, which is fixedly sleeved on the outside of the rotating rod 31, is a key component connecting the wind speed sensor 35 and the support base 3. It is used to transport the wind speed sensor 35 into the pipeline for detection. One end of the rotating rod 31 extends to the front of the support base 3 and is fixedly sleeved on the first worm gear 32, which meshes with the tooth surface of the first worm gear 34, which is fixedly installed on the front of the support base 3 via a coupling.

[0036] When the second servo motor 33 is started, the first worm gear 34 rotates, driving the first worm wheel 32 to rotate, which in turn causes the rotating rod 31 to rotate, ultimately realizing the swing arm 36 swinging. When the equipment is not in use, by controlling the second servo motor 33, the swing arm 36 can be swung downwards to achieve folding and storage, which greatly reduces the space occupied by the equipment, facilitates the movement and transportation of the equipment, and improves the convenience of transferring the equipment between different fire detection scenarios.

[0037] The internal support mechanism of the swing arm 36 uses the mounting block 4, which is fixedly sleeved to the inner wall of the swing arm 36, as the mounting base. The symmetrically distributed fixing blocks 41, which are fixedly connected to the inner top wall of the mounting block 4, provide mounting support for components such as the bidirectional lead screw 42.

[0038] The bidirectional lead screw 42, which is rotatably connected to the inner walls of the two fixed blocks 41 by bearings, is the core transmission component of the support mechanism. The second worm gear 43, which is fixedly sleeved on the outside of the bidirectional lead screw 42, meshes with the tooth surface of the second worm gear 49, which is fixedly installed on the output shaft of the third servo motor 48, which is fixedly installed on the inner bottom wall of the mounting block 4, through a coupling.

[0039] When the third servo motor 48 is started, the second worm gear 49 rotates, which drives the second worm wheel 43 to rotate, and in turn causes the bidirectional lead screw 42 to rotate. The symmetrically distributed second threaded sleeves 44 connected to the external threads of the bidirectional lead screw 42 will move in opposite directions or towards each other as the bidirectional lead screw 42 rotates.

[0040] The anti-slip support plate 45, which is fixedly connected to one end of the second threaded sleeve 44, will move with the second threaded sleeve 44 until it is supported and fixed to the inner wall of the pipe on both sides. During this process, the guide block 46, which is fixedly connected to the outside of the second threaded sleeve 44, slides along the guide rod 47. One end of the guide rod 47 is fixedly connected to the front of the fixed block 41, which plays a guiding role in the movement of the second threaded sleeve 44, ensuring that the anti-slip support plate 45 can contact the inner wall of the pipe smoothly and accurately.

[0041] This support and fixing method can prevent the wind speed sensor 35 from shaking under high wind speeds inside the duct, thus ensuring the accuracy of wind speed detection and enabling fire inspection personnel to obtain accurate wind speed data inside the duct, providing a reliable basis for fire protection work.

[0042] It should be noted that the electrical equipment mentioned above are all mature existing technologies. Those skilled in the art can use the corresponding models of equipment according to the testing needs, so they will not be described in detail here.

[0043] The working process of this utility model:

[0044] Step 1: When in use, start the first servo motor 21. The output shaft of the first servo motor 21 drives the adjusting screw 22 to rotate through the coupling. Since the adjusting screw 22 is threadedly connected to the first threaded sleeve 23, and the limiting block 24 fixedly sleeved on the lower end of the first threaded sleeve 23 is slidably sleeved with the inner wall of the adjusting sleeve 2, it plays a limiting role. Therefore, the rotation of the adjusting screw 22 will cause the first threaded sleeve 23 to rise and move inside the adjusting sleeve 2, thereby driving the swing arm 36 to rise until it moves to the horizontal height of the pipe. There is no need for manual climbing with the help of a ladder, which reduces the safety risk.

[0045] Step two: Push the movable base 1 to drive the swing arm 36 into the pipe. Then, start the third servo motor 48. The output shaft of the third servo motor 48 drives the second worm 49 to rotate through the coupling. Because the outer surface of the second worm 49 meshes with the tooth surface of the second worm wheel 43, the rotation of the second worm 49 will drive the second worm wheel 43 to rotate, thereby causing the bidirectional lead screw 42, which is fixedly sleeved with the second worm wheel 43, to rotate. The bidirectional lead screw 42 has symmetrically distributed second threaded sleeves 44 connected to its external threads. The two second threaded sleeves 44 will rotate with the double... The screw 42 rotates in the opposite direction, thereby driving the anti-slip support plate 45 to move in the opposite direction until it is fixed to the inner wall of both sides of the pipe. The specific support force can be set as needed by the pressure sensor value set in the anti-slip support plate 45. Since the pressure sensor is a mature existing technology, it is not shown in the figure. This can avoid the wind speed sensor 35 from shaking under the high wind speed in the pipe, ensuring the detection accuracy. After the support is fixed, the wind speed sensor 35 is used to detect the wind speed in the pipe, and the wind speed data in the pipe can be accurately obtained.

[0046] Step 3: When not in use, first start the first servo motor 21 to drive the adjusting screw 22 to rotate in the opposite direction, causing the first threaded sleeve 23 to drive the swing arm 36 to descend and reset. Then start the second servo motor 33. The output shaft of the second servo motor 33 drives the first worm 34 to rotate through the coupling. Since the outer surface of the first worm 34 meshes with the tooth surface of the first worm wheel 32, the rotation of the first worm 34 will drive the first worm wheel 32 to rotate, which in turn causes the rotating rod 31, which is fixedly sleeved with the first worm wheel 32, to rotate. The rotation of the rotating rod 31 causes the swing arm 36 to swing downward, realizing folding and storage, reducing the space occupied by the equipment, and facilitating movement and transportation.

[0047] 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 wind speed detection device for fire protection testing, comprising a movable base (1), characterized in that: A height adjustment mechanism is provided above the movable base (1); The height adjustment mechanism includes an adjustment sleeve (2), the lower end of which is fixedly connected to the upper end of the movable base (1). A first servo motor (21) is fixedly installed on the inner bottom wall of the movable base (1). An adjustment screw (22) is fixedly installed on the output shaft of the first servo motor (21) through a coupling. One end of the adjustment screw (22) passes through the interior of the adjustment sleeve (2) and is threadedly connected to a first threaded sleeve (23). The upper end of the first threaded sleeve (23) passes through and extends above the adjustment sleeve (2). The upper end of the first threaded sleeve (23) is provided with a folding and storage mechanism.

2. The wind speed detection device for fire protection testing according to claim 1, characterized in that: A limiting block (24) is fixedly sleeved on the lower end of the first threaded sleeve (23), and the outside of the limiting block (24) is slidably sleeved with the inner wall of the adjusting sleeve (2).

3. The wind speed detection device for fire protection testing according to claim 1, characterized in that: The folding and storage mechanism includes a support base (3), and the inner walls on both sides of the support base (3) are rotatably connected to a rotating rod (31) via bearings. A swing arm (36) is fixedly sleeved on the outside of the rotating rod (31).

4. The wind speed detection device for fire protection detection according to claim 3, characterized in that: One end of the rotating rod (31) extends to the front of the support base (3) and is fixedly sleeved with a first worm gear (32). A second servo motor (33) is fixedly installed on the front of the support base (3). The output shaft of the second servo motor (33) is fixedly installed with a first worm (34) through a coupling.

5. The wind speed detection device for fire protection testing according to claim 4, characterized in that: The outer surface of the first worm (34) meshes with the tooth surface of the first worm wheel (32), and a wind speed sensor (35) is fixedly installed above one end of the swing arm (36). A support mechanism is provided inside the swing arm (36). The support mechanism includes a mounting block (4), the outside of which is fixedly sleeved with the inner wall of the swing arm (36), and the inner top wall of the mounting block (4) is fixedly connected with symmetrically distributed fixing blocks (41).

6. The wind speed detection device for fire protection detection according to claim 5, characterized in that: The inner walls of the two fixed blocks (41) are rotatably connected to a double-acting screw (42) via bearings. A second worm gear (43) is fixedly sleeved on the outside of the double-acting screw (42). The double-acting screw (42) is threaded with symmetrically distributed second threaded sleeves (44). One end of each of the two second threaded sleeves (44) passes through and extends to the front and back of the mounting block (4).

7. A wind speed detection device for fire protection testing according to claim 6, characterized in that: One end of the second threaded sleeve (44) is fixedly connected to an anti-slip support plate (45). A guide block (46) is fixedly connected to the outside of the threaded sleeve. A guide rod (47) is slidably sleeved on the inner wall of the guide block (46). One end of the guide rod (47) is fixedly connected to the front of the fixed block (41). A third servo motor (48) is fixedly installed on the inner bottom wall of the mounting block (4). The output shaft of the third servo motor (48) is fixedly installed with a second worm (49) through a coupling. The outer surface of the second worm (49) meshes with the tooth surface of the second worm wheel (43).

Images