Ventilation pipeline wind speed measuring instrument

Abstract

The utility model relates to the technical field of wind speed measurement, and discloses a ventilating duct wind speed measuring instrument, which comprises a mounting ring, L-shaped plates are fixedly connected to the periphery of the front end of the mounting ring, and round rods are fixedly connected to the surfaces of the L-shaped plates. According to the air speed measuring instrument for the ventilating duct, an L-shaped plate is placed in an air outlet of the ventilating duct by a worker, a sensing fan blade is placed in the ventilating duct, and then a threaded rod is screwed to rotate in a nut block according to the size of the duct, so that the threaded rod gets close to the surface of the duct and pushes a clamping plate to slide on the surface of a sliding rod, and the clamping plate is tightly attached to the surface of the duct; when the threaded push rod is screwed to move outwards to be tightly attached to the inner wall of the pipeline, the threaded push rod and the clamping plates clamp and fix the inner wall and the outer wall of the pipeline through the arrangement of the four L-shaped plates, the installation ring is installed on the inner wall of the pipeline, the sensing fan blades are arranged in the inner wall of an air outlet of the pipeline, and the air speed in the pipeline is monitored in real time.

Description

Technical Field

[0001] The utility model relates to the technical field of wind speed measurement, in particular to an air duct wind speed measuring instrument. Background Technique

[0002] An anemometer is an instrument for measuring the flow velocity of air. The anemometer is applicable to accurately measuring the instantaneous wind speed and the one-minute average wind speed in coal mines, underground and other flammable and explosive occasions. At the same time, it is also applicable to the wind speed measurement in occasions such as transportation, construction, chemical industry, grain processing, and aerodynamic research.

[0003] In actual use, the existing pipeline measuring instruments cannot be fixedly installed on the inner wall of the pipeline to continuously measure and monitor the wind speed of the inner wall of the pipeline. It may be necessary to manually hold the measuring device on the inner wall of the pipeline to continuously measure the wind force in the pipeline. Manually holding the measuring device for a long time may cause soreness in the worker's hands. At the same time, when the wind force is large, the difficulty of manually holding the measuring device will increase, which may cause the measuring device to fall and result in the measuring device being knocked and damaged, making it inconvenient for the staff to use the measuring device to continuously measure the wind force in the pipeline. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is that there is a disadvantage in that the measuring device is not convenient to fix and continuously measure in the prior art. For this reason, we propose an air duct wind speed measuring instrument.

[0005] In order to achieve the above object, the present application adopts the following technical solution: an air duct wind speed measuring instrument, including an installation ring, four sides of the front end of the installation ring are fixedly connected with L-shaped plates, the surface of the L-shaped plates is fixedly connected with round rods, one end of the round rods is fixedly connected with three brackets, one end of the brackets is equipped with a sensing fan blade, the bottom of the sensing fan blade is equipped with the measuring instrument device body, one end of the L-shaped plates is fixedly connected with a nut block, the inner wall of the nut block is threadedly connected with a threaded rod, a long groove is opened at one end of the L-shaped plates, a sliding rod is fixedly connected to the inner wall of the long groove, a clamping plate is slidably connected to the surface of the sliding rod, and a threaded push rod is threadedly connected to one end of the L-shaped plates.

[0006] Preferably, one side of the clamping plate is fixedly connected with a spring, and the end of the spring away from the clamping plate is fixedly connected with the inner wall of the long groove.

[0007] Preferably, the sliding rod is placed inside the inner wall of the spring, and the inner wall of the spring is slidably connected to the surface of the sliding rod.

[0008] Preferably, one end of the bracket is fixedly connected with an extension rod, and the other end of the extension rod is fixedly connected with a wire mesh plate.

[0009] Preferably, a reinforcing ring is fixedly connected to the surface of the bracket, and a plurality of support rods are fixedly connected to the inner wall of the reinforcing ring. The other end of the support rod is fixedly connected to a stress ring.

[0010] Preferably, a long rod is fixedly connected to the inner wall of the reinforcing ring, and two streamers are fixedly connected to the surface of the long rod.

[0011] Preferably, an anti-slip pad is fixedly connected to one side of the clamping plate, and a plurality of protruding strips are fixedly connected to the other side of the clamping plate.

[0012] Technical effects and advantages of the present utility model:

[0013] In the present utility model, after the staff places the L-shaped plate into the air outlet of the ventilation duct so that the sensing fan blades are placed in the ventilation duct, then according to the size of the duct, the threaded rod is rotated in the nut block, so that the threaded rod approaches the surface of the duct, pushing the clamping plate to slide on the surface of the sliding rod, so that the clamping plate closely adheres to the surface of the duct. Then, the threaded push rod is rotated to move outwards and closely adheres to the inner wall of the duct. Through the arrangement of the four L-shaped plates, the clamping and fixing of the inner and outer walls of the duct by the threaded push rod and the clamping plate are realized. The mounting ring is installed on the inner wall of the duct, so that the sensing fan blades are placed in the inner wall of the duct outlet, and the wind speed in the duct is monitored in real time. Description of the drawings

[0014] Figure 1 is the front view structural schematic diagram of the present utility model;

[0015] Figure 2 is the plane structural schematic diagram of the present utility model;

[0016] Figure 3 is the vertical cross-sectional structural schematic diagram of the present utility model;

[0017] Figure 4 is the fixed structural schematic diagram of the present utility model;

[0018] Figure 5 is the reset structural schematic diagram of the present utility model.

[0019] Legend: 1. Mounting ring; 2. L-shaped plate; 3. Round rod; 4. Bracket; 5. Sensing fan blade; 6. Measuring instrument device body; 7. Nut block; 8. Threaded rod; 9. Long groove; 10. Sliding rod; 11. Clamping plate; 12. Threaded push rod; 13. Spring; 14. Extension rod; 15. Wire mesh plate; 16. Reinforcing ring; 17. Support rod; 18. Stress ring; 19. Long rod; 20. Streamer; 21. Anti-slip pad; 22. Protruding strip. Detailed implementation manners

[0020] The present utility model will be further described in detail below in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, only illustrating the basic structure of the present utility model in a schematic manner, so they only show the components related to the present utility model.

[0021] Referring to Figure 1 - Figure 5 As shown, the present utility model provides a technical solution: a ventilation duct air velocity measuring instrument, which includes an installation ring 1. Four sides of the front end of the installation ring 1 are fixedly connected with L-shaped plates 2. A round rod 3 is fixedly connected to the surface of the L-shaped plate 2. One end of the round rod 3 is fixedly connected with three brackets 4. A sensing fan blade 5 is installed at one end of the bracket 4. A measuring instrument device body 6 is installed at the bottom of the sensing fan blade 5. One end of the L-shaped plate 2 is fixedly connected with a nut block 7. A threaded rod 8 is threadedly connected to the inner wall of the nut block 7. A long groove 9 is opened at one end of the L-shaped plate 2. A sliding rod 10 is fixedly connected to the inner wall of the long groove 9. A clamping plate 11 is slidably connected to the surface of the sliding rod 10. A threaded push rod 12 is threadedly connected to one end of the L-shaped plate 2. By the staff putting the L-shaped plate 2 into the air outlet of the ventilation duct, after the sensing fan blade 5 is placed in the ventilation duct, then turning the threaded rod 8 to rotate in the nut block 7 according to the size of the duct, so that the threaded rod 8 approaches the surface of the duct, pushing the clamping plate 11 to slide on the surface of the sliding rod 10, so that the clamping plate 11 closely adheres to the surface of the duct. Then turning the threaded push rod 12 to move outwards and closely adhere to the inner wall of the duct. Through the setting of the four L-shaped plates 2, the clamping and fixing of the inner and outer walls of the duct by the threaded push rod 12 and the clamping plate 11 are realized, and the installation ring 1 is installed on the inner wall of the duct, so that the sensing fan blade 5 is placed in the inner wall of the duct air outlet to monitor the air velocity in the duct in real time.

[0022] Referring to Figure 4 With Figure 5 As shown, in this implementation scheme: a spring 13 is fixedly connected to one side of the clamping plate 11. One end of the spring 13 away from the clamping plate 11 is fixedly connected to the inner wall of the long groove 9. By the staff pulling the clamping plate 11 to move on the surface of the sliding rod 10 outwards and pulling the spring 13 to extend for energy storage. When the staff places the L-shaped plate 2 on the inner wall of the duct, then releasing the clamping plate 11 to release the force of the spring 13, so that the spring 13 rebounds to pull the clamping plate 11 to rebound, so that the clamping plate 11 rebounds and closely adheres to the surface of the duct, so that one end of the four L-shaped plates 2 is clamped at the duct opening through the setting of the clamping plate 11 to simply fix the position of the L-shaped plate 2, so as to facilitate the staff to perform subsequent operations on this device.

[0023] Referring to Figure 4 With Figure 5As shown in the figure, in this embodiment: The sliding rod 10 is placed inside the spring 13, and the inner wall of the spring 13 is slidably connected to the surface of the sliding rod 10. When the spring 13 operates, through the sliding connection between the spring 13 and the sliding rod 10, the movement trajectory of the spring 13 and its maximum stretching length are restricted, preventing the spring 13 from curling and winding with each other when rebounding, which affects the normal operation of the component.

[0024] Refer to Figure 1 and Figure 2 As shown in the figure, in this embodiment: One end of the bracket 4 is fixedly connected with an extension rod 14, and the other end of the extension rod 14 is fixedly connected with a wire mesh plate 15. Through the wire mesh plate 15 fixed at the rear end of the extension rod 14 provided, sundries carried by the wind and the like at the pipe outlet are blocked by the wire mesh plate 15, preventing the sundries carried in the pipe from knocking and colliding with the sensing fan blade 5 and the measuring instrument device body 6, causing damage to the sensing fan blade 5 and the measuring instrument device body 6, thereby shielding and protecting the sensing fan blade 5 and the measuring instrument device body 6, and ensuring the stable operation of the sensing fan blade 5 and the measuring instrument device body 6.

[0025] Refer to Figure 1 、 Figure 2 and Figure 3 As shown in the figure, in this embodiment: The surface of the bracket 4 is fixedly connected with a reinforcing ring 16, and the inner wall of the reinforcing ring 16 is fixedly connected with a number of support rods 17. The other end of the support rod 17 is fixedly connected with a force-bearing ring 18. Through the reinforcing ring 16 provided, the front end is reinforced to prevent the L-shaped plate 2 from deforming under force, and through the support rods 17 and the force-bearing ring 18 provided, the force-bearing ring 18 distributes the force received by the L-shaped plate 2, improving the maximum force-bearing capacity of the L-shaped plate 2 and preventing the L-shaped plate 2 from deforming and being damaged after long-term use.

[0026] Refer to Figure 3 As shown in the figure, in this embodiment: The inner wall of the reinforcing ring 16 is fixedly connected with a long rod 19, and two streamers 20 are fixedly connected to the surface of the long rod 19. Through the long rod 19 and the streamers 20 provided, the wind generated in the pipe can blow the streamers 20 to flutter, enabling the staff to more intuitively observe the wind state in the pipe and judge whether there is wind in the pipe.

[0027] Refer to Figure 5As shown in the figure, in this embodiment: One side of the clamping plate 11 is fixedly connected with an anti-slip pad 21, and the other side of the clamping plate 11 is fixedly connected with a plurality of protruding strips 22. By providing the anti-slip pad 21 and the protruding strips 22, when the protruding strips 22 are in contact with the threaded rod 8, the rubber material of the protruding strips 22 prevents the threaded rod 8 from slipping and loosening on the surface of the clamping plate 11. And through the contact between the anti-slip pad 21 and the outer wall of the pipeline, the anti-slip pad 21 is made of a specific silicone material and contacts with the outer wall of the pipeline, increasing the force-bearing area between the clamping plate 11 and the outer wall of the pipeline, enhancing the friction between the clamping plate 11 and the outer wall of the pipeline, preventing the clamping plate 11 from sliding and loosening on the outer wall of the pipeline after the device is fixed, and improving the stability of the device after fixation.

[0028] Working principle: The staff puts the L-shaped plate 2 into the air outlet of the ventilation duct. After the sensing fan blades 5 are placed in the ventilation duct, turn the threaded rod 8 to rotate within the nut block 7 according to the size of the duct, so that the threaded rod 8 approaches the surface of the duct, pushing the clamping plate 11 to slide on the surface of the sliding rod 10, making the clamping plate 11 close tightly to the surface of the duct. Then turn the threaded push rod 12 to move outwards and close tightly to the inner wall of the duct. Through the setting of the four L-shaped plates 2, the threaded push rod 12 and the clamping plate 11 are clamped and fixed to the inner and outer walls of the duct. Install the mounting ring 1 on the inner wall of the duct, so that the sensing fan blades 5 are placed in the inner wall of the duct air outlet to monitor the wind speed in the duct in real time. The staff pulls the clamping plate 11 to move on the surface of the sliding rod 10 outwards and pulls the spring 13 to extend for energy storage. When the staff places the L-shaped plate 2 on the inner wall of the duct, then release the clamping plate 11 to release the force of the spring 13, so that the spring 13 rebounds to pull the clamping plate 11 to rebound, making the clamping plate 11 rebound and close tightly to the surface of the duct, so that one end of the four L-shaped plates 2 is clamped at the duct opening through the setting of the clamping plate 11, simply fixing the position of the L-shaped plate 2 to facilitate the staff to perform subsequent operations on this device. When the spring 13 operates, through the sliding connection between the spring 13 and the sliding rod 10, the movement track of the spring 13 and its maximum stretching length are restricted to prevent the spring 13 from curling and winding with each other when rebounding, affecting the normal operation of the components. Through the wire mesh plate 15 fixed to the rear end of the extension rod 14 provided, sundries carried by the wind at the duct outlet are blocked by the wire mesh plate 15, preventing the sundries carried in the duct from knocking and colliding with the sensing fan blades 5 and the measuring instrument device body 6, damaging the sensing fan blades 5 and the measuring instrument device body 6, thereby shielding and protecting the sensing fan blades 5 and the measuring instrument device body 6 and ensuring the stable operation of the sensing fan blades 5 and the measuring instrument device body 6. Through the reinforcement ring 16 provided, the front end is reinforced to prevent the L-shaped plate 2 from deforming under force. And through the support rod 17 and the force-receiving ring 18 provided, the force-receiving ring 18 distributes the force received by the L-shaped plate 2, improving the maximum force-bearing capacity of the L-shaped plate 2 and preventing the L-shaped plate 2 from deforming and being damaged after long-term use. Through the long rod 19 and the ribbon 20 provided, the wind generated in the duct can blow the ribbon 20 to flutter, enabling the staff to more intuitively observe the wind force state in the duct and judge whether there is wind force in the duct. Through the anti-slip pad 21 and the raised strip 22 provided, when the raised strip 22 fits with the threaded rod 8, the rubber material of the raised strip 22 prevents the threaded rod 8 from slipping and loosening on the surface of the clamping plate 11. And through the fitting of the anti-slip pad 21 with the outer wall of the duct, the anti-slip pad 21 is made of a specific silicone material and fits with the outer wall of the duct, increasing the force-bearing area between the clamping plate 11 and the outer wall of the duct and enhancing the friction between the clamping plate 11 and the outer wall of the duct, preventing the clamping plate 11 from sliding and loosening on the outer wall of the duct after the device is fixed and improving the stability of the device after fixation.

[0029] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not intended to limit the present utility model. Although the present 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 perform equivalent replacements on some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A ventilation duct air velocity measuring instrument, comprising a mounting ring (1), characterized in that: Four sides of the front end of the installation ring (1) are fixedly connected with L-shaped plates (2). A round rod (3) is fixedly connected to the surface of the L-shaped plate (2). One end of the round rod (3) is fixedly connected with three brackets (4). A sensing fan blade (5) is installed at one end of the bracket (4). A measuring instrument device body (6) is installed at the bottom of the sensing fan blade (5). One end of the L-shaped plate (2) is fixedly connected with a nut block (7). A threaded rod (8) is threadedly connected to the inner wall of the nut block (7). A long groove (9) is formed at one end of the L-shaped plate (2). A sliding rod (10) is fixedly connected to the inner wall of the long groove (9). A clamping plate (11) is slidably connected to the surface of the sliding rod (10). A threaded push rod (12) is threadedly connected to one end of the L-shaped plate (2).

2. The anemometer for measuring the air velocity of a ventilation duct according to claim 1, wherein: One side of the clamping plate (11) is fixedly connected with a spring (13). One end of the spring (13) far away from the clamping plate (11) is fixedly connected with the inner wall of the long groove (9).

3. The anemometer for measuring the air velocity of a ventilation duct according to claim 1, wherein: The sliding rod (10) is placed inside the spring (13). The inner wall of the spring (13) is slidably connected to the surface of the sliding rod (10).

4. The anemometer for measuring the air velocity of a ventilation duct according to claim 1, characterized in that: One end of the bracket (4) is fixedly connected with an extension rod (14). The other end of the extension rod (14) is fixedly connected with a wire mesh plate (15).

5. The anemometer for measuring the air velocity of a ventilation duct according to claim 1, wherein: A reinforcing ring (16) is fixedly connected to the surface of the bracket (4). A number of support rods (17) are fixedly connected to the inner wall of the reinforcing ring (16). The other end of the support rod (17) is fixedly connected with a stress ring (18).

6. The anemometer for measuring the air velocity of a ventilation duct according to claim 5, characterized in that: A long rod (19) is fixedly connected to the inner wall of the reinforcing ring (16). Two streamers (20) are fixedly connected to the surface of the long rod (19).

7. The anemometer for measuring the air velocity of a ventilation duct according to claim 1, wherein: One side of the clamping plate (11) is fixedly connected with an anti-slip pad (21). A number of raised strips (22) are fixedly connected to the other side of the clamping plate (11).

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