A twenty-five-antenna wind measurement structure

Abstract

The utility model discloses a kind of twenty-five reverse air volume measurement structures, comprising: fixed ring, fan and center positioning mechanism.Center positioning mechanism is installed on the outer wall of fixed ring, and center positioning mechanism includes: two pairs of mounting plates, multiple pairs of support plates, fixed head, sliding sleeve, slide rod and locking assembly, two pairs of mounting plates are fixed at equal intervals on the outer wall of fixed ring, two pairs of mounting plates are fixed with shaft seat, and the both ends of each shaft seat are fixed with rotating shaft, multiple pairs of support plates are rotated on multiple pairs of rotating shaft respectively, and elastic member is installed between multiple pairs of support plates and mounting plate, the end of multiple pairs of support plates away from mounting plate is fixed with clamping head, relief groove is opened on each pair of support plate, and locking assembly is installed on the side of sliding sleeve away from fixed head.The utility model can place fixed ring in the middle position of pipeline quickly by setting center positioning mechanism, and effectively improve the installation efficiency of fixed ring.

Description

Technical Field

[0001] This utility model belongs to the field of air volume detection technology, specifically relating to a 25-stage air volume measurement structure. Background Technology

[0002] Airflow detection equipment refers to equipment that uses a wind speed sensor to detect the airflow velocity in a designated location, thereby completing the detection of airflow data for that space. The "Twenty-Five Countermeasures" refers to twenty-five countermeasures: officially titled "Twenty-Five Key Requirements for Preventing Major Accidents in Power Production," a core safety standard for the power industry, which sets out prevention and control measures for 25 major risks across all stages of power production.

[0003] In the prior art, CN202420829692.X discloses a fire exhaust duct airflow detection device, including a duct, a fixed I-beam block fixedly connected to the inner wall of the duct, and an installation strip slidably connected to the inner wall of the fixed I-beam block. Through the installation strip, extension column, fixed column, fixed ring, first gear, first threaded rod, gear ring, fixed I-beam block, limiting block, sliding groove, and protrusion, this fire exhaust duct airflow detection device improves the disassembly and assembly efficiency of the airflow detection device, avoiding a reduction in the disassembly and assembly efficiency of the airflow detection device.

[0004] The aforementioned technology cannot automatically perform center calibration in actual use. It requires adjusting multiple extension columns outward by the same length to place the fixing ring in the center of the pipe, resulting in low installation efficiency.

[0005] Therefore, in order to address the above-mentioned technical problems, it is necessary to provide a 25-stage air volume measurement structure.

[0006] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0007] The purpose of this invention is to provide a 25-stage airflow measurement structure that can solve the problem that existing airflow measurement structures cannot perform mid-calibration.

[0008] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0009] A 25-stage air volume measurement structure includes: a fixed ring, a fan, and a central positioning mechanism.

[0010] A mounting bracket is fixed inside the fixed ring. The fan is mounted on the mounting bracket. The central positioning mechanism is mounted on the outer wall of the fixed ring. The central positioning mechanism includes: two pairs of mounting plates, multiple pairs of support plates, a fixed head, a sliding sleeve, a sliding rod, and a locking assembly. The two pairs of mounting plates are fixed at equal intervals on the outer wall of the fixed ring. Each pair of mounting plates has a bearing seat fixed on it, and each bearing seat has a rotating shaft fixed at both ends. The multiple pairs of support plates rotate on the multiple pairs of rotating shafts, and elastic elements are installed between the multiple pairs of support plates and the mounting plates. A clamping head is fixed at the end of each pair of support plates away from the mounting plate. A clearance groove is chiseled on each pair of support plates. The fixed head and the sliding sleeve rotate on the side wall of a pair of clearance grooves. The sliding rod is fixed to one side of the fixed head and slides on the sliding sleeve. The locking assembly is installed on the side of the sliding sleeve away from the fixed head and is used to lock the sliding sleeve and the sliding rod together.

[0011] In one embodiment of this invention, a flow divider is provided on the support arm of the mounting bracket, near the end closest to the fan. The flow divider is used to divert the airflow within the fixing ring, thereby reducing the obstruction of the airflow by the mounting bracket and minimizing the impact on the measurement results.

[0012] In one embodiment of this utility model, rotating heads are fixed on both side walls of the support plates near the mounting plate, and each pair of rotating heads rotates on a pivot. The support plates rotate on the pivot via a pair of rotating heads.

[0013] In one embodiment of this utility model, each pair of support plates rotates symmetrically on a pair of rotating shafts, thereby keeping the fixed ring balanced when it is supported in the pipe by multiple pairs of support plates.

[0014] In one embodiment of this utility model, the elastic element is a torsion spring, which is mounted on a rotating shaft and located between the inner wall of the support plate and the top wall of the mounting plate. The force of multiple pairs of torsion springs pushes multiple pairs of support plates to rotate in opposite directions, causing the clamping heads at the top of the multiple pairs of support plates to clamp onto the inner wall of the pipe, thereby aligning the fixed ring.

[0015] In one embodiment of this utility model, each pair of support plates has meshing teeth fixed on one end of the rotating head, so that each pair of support plates can rotate synchronously when opening outward and rotating in opposite directions to clamp, and the included angle between each pair of support plates and the horizontal plane is always consistent.

[0016] In one embodiment of this utility model, the outer wall of the clamping head is provided with anti-slip texture, thereby preventing the clamping head from sliding when clamped to the inner wall of the pipe.

[0017] In one embodiment of this utility model, the locking assembly includes: a locking sleeve, a pair of elastic plates, a pair of slots, and a movable sleeve. The locking sleeve is fixed to the side of the sliding sleeve away from the fixed head, and through grooves are carved at both its upper and lower ends. One end of each pair of elastic plates is fixed to one end of the pair of through grooves, and a locking block is fixed to the other end of each pair of elastic plates near the sliding rod. The pair of slots are carved on the upper and lower sides of the sliding rod. The movable sleeve slides on the locking sleeve, and a pushing block is fixed within each of the pair of through grooves.

[0018] When it is necessary to lock the sliding sleeve and the sliding rod, push the moving sleeve towards the sliding sleeve. When the moving sleeve slides, it drives a pair of pushing blocks to slide towards the locking blocks. After the moving sleeve drives the pair of pushing blocks to slide to the outer side of the pair of elastic plates near the locking blocks, the pair of pushing blocks push the pair of locking blocks towards the sliding rod, so that the pair of locking blocks are locked in the locking groove, thereby fixing the sliding sleeve and the sliding rod.

[0019] In one embodiment of this utility model, a fixing ring is fixed to one end of the locking sleeve outside the movable sleeve. The fixing ring is used to limit the movable sleeve and prevent the movable sleeve from slipping off the locking sleeve.

[0020] In one embodiment of this utility model, a rotating seat is fixed on the side wall of each pair of relief grooves, and the fixing head and the sliding sleeve rotate on a pair of rotating seats respectively. The pair of rotating seats are used for the fixing head and the sliding sleeve to rotate on them respectively.

[0021] Compared with the prior art, the 25-counterflow air volume measurement structure of this utility model, by setting a central positioning mechanism, can quickly place the fixing ring in the middle of the pipeline, effectively improving the installation efficiency of the fixing ring. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a perspective view of a 25-stage air volume measurement structure according to an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the internal structure of the fixing ring in one embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the central positioning mechanism in one embodiment of the present invention;

[0026] Figure 4 This is a schematic diagram of the structure of a pair of support plates in one embodiment of the present invention;

[0027] Figure 5 This is a schematic diagram of the slide bar in one embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the sliding sleeve in one embodiment of the present invention.

[0029] Explanation of key figure labels:

[0030] 1-Fixing ring, 101-Mounting bracket, 102-Fan, 103-Diverter plate, 2-Center positioning mechanism, 201-Mounting plate, 202-Shaft seat, 203-Rotating shaft, 204-Support plate, 205-Rotating head, 206-Clamping head, 207-Torsion spring, 208-Leaning groove, 209-Rotating seat, 210-Fixing head, 211-Sliding sleeve, 212-Sliding rod, 213-Card slot, 214-Locking sleeve, 215-Fixing ring, 216-Through groove, 217-Elastic plate, 218-Card block, 219-Moving sleeve, 220-Push block, 221-Tooth. Detailed Implementation

[0031] To enable those skilled in the art to better understand the technical solutions in this disclosure, the technical solutions in the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this disclosure, and not all embodiments. Based on the embodiments in this disclosure, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this disclosure.

[0032] like Figures 1 to 6 As shown, a 25-fold reverse airflow measurement structure in one embodiment of the present invention includes: a fixed ring 1, a fan 102, and a central positioning mechanism 2.

[0033] like Figures 1 to 6As shown, a mounting bracket 101 is fixed inside the fixed ring 1. A fan 102 is mounted on the mounting bracket 101. A center positioning mechanism 2 is mounted on the outer wall of the fixed ring 1. The center positioning mechanism 2 includes: two pairs of mounting plates 201, multiple pairs of support plates 204, a fixing head 210, a sliding sleeve 211, a sliding rod 212, and a locking assembly. The two pairs of mounting plates 201 are fixed at equal intervals to the outer wall of the fixed ring 1. Each pair of mounting plates 201 has a bearing seat 202 fixed on it, and each bearing seat 202 has a rotating shaft 203 fixed at both ends. The multiple pairs of support plates 204 rotate on the multiple pairs of rotating shafts 203, and the multiple pairs of support plates 204 are connected to the mounting bracket 101. Elastic elements are installed between the mounting plates 201. Clamping heads 206 are fixed to the ends of multiple pairs of support plates 204 away from the mounting plates 201. Each pair of support plates 204 has a relief groove 208. The fixing head 210 and the sliding sleeve 211 rotate on the side wall of a pair of relief grooves 208 respectively. The sliding rod 212 is fixed to one side of the fixing head 210 and slides on the sliding sleeve 211. The locking assembly is installed on the side of the sliding sleeve 211 away from the fixing head 210 and is used to lock the sliding sleeve 211 and the sliding rod 212.

[0034] In use, air passes through the fixed ring 1, driving the fan 102 to rotate. The flow rate of the duct is determined based on the rotation speed of the fan 102. The mounting bracket 101 is used to support the fan 102. The center positioning mechanism 2 is used to center the fixed ring 1 inside the duct and fix the fixed ring 1 inside the duct.

[0035] The mounting plate 201 is used to fix the bearing 202 on it. Each pair of rotating shafts 203 is used to rotate each pair of support plates 204 on it. Each pair of support plates 204 is pushed to rotate in opposite directions by a pair of elastic elements. When the fixing ring 1 is installed in the pipe, the multiple pairs of elastic elements push the multiple pairs of support plates 204 to rotate in opposite directions. The multiple pairs of support plates 204 are clamped to the inner wall of the pipe by multiple pairs of clamping heads 206 at their top ends, thereby placing the fixing ring 1 in the center of the pipe.

[0036] In addition, when a pair of support plates 204 rotate towards each other, one of the support plates 204 pulls the slide rod 212 to slide on the slide sleeve 211 through the fixing head 210 on it. After the fixing ring 1 is placed in the center of the pipe by multiple support plates 204, the sliding sleeve 211 and the slide rod 212 are locked by the locking assembly, thereby fixing each pair of support plates 204 and fixing the fixing ring 1.

[0037] like Figures 1 to 6As shown, a flow divider 103 is provided on each arm of the mounting bracket 101 near the fan 102. The flow divider 103 is used to divide the airflow within the fixed ring 1, thereby reducing the obstruction of airflow by the mounting bracket 101 and minimizing the impact on the measurement results. Rotating heads 205 are fixed to the side walls of multiple pairs of support plates 204 near the mounting plate 201, and each pair of rotating heads 205 rotates on a rotating shaft 203. The support plates 204 rotate on the rotating shaft 203 via a pair of rotating heads 205.

[0038] like Figures 1 to 6 As shown, each pair of support plates 204 rotates symmetrically on a pair of rotating shafts 203. This allows the fixing ring 1 to remain balanced within the pipe when supported by multiple pairs of support plates 204. The elastic element is a torsion spring 207, which is mounted on the rotating shaft 203 and positioned between the inner wall of the support plate 204 and the top wall of the mounting plate 201. The elastic force of the multiple pairs of torsion springs 207 pushes the multiple pairs of support plates 204 to rotate in opposite directions, causing the clamping heads 206 at the top of the multiple pairs of support plates 204 to clamp onto the inner wall of the pipe, thereby aligning the fixing ring 1.

[0039] like Figures 1 to 6 As shown, each pair of support plates 204 has interlocking teeth 221 fixed on one end of the rotating head 205, so that each pair of support plates 204 can rotate synchronously when opening outward and rotating in opposite directions to clamp, and the angle between each pair of support plates 204 and the horizontal plane remains consistent. The outer wall of the clamping head 206 is provided with anti-slip texture to prevent the clamping head 206 from sliding when clamping the inner wall of the pipe.

[0040] like Figures 1 to 6 As shown, the locking assembly includes: a locking sleeve 214, a pair of elastic plates 217, a pair of slots 213, and a movable sleeve 219. The locking sleeve 214 is fixed to the side of the sliding sleeve 211 away from the fixed head 210, and through grooves 216 are cut at both its upper and lower ends. One end of each pair of elastic plates 217 is fixed to one end of each pair of through grooves 216, and a locking block 218 is fixed to the other end of each pair of elastic plates 217 on the side near the slide rod 212. A pair of slots 213 are cut on the upper and lower sides of the slide rod 212, respectively. The movable sleeve 219 slides on the locking sleeve 214, and a pushing block 220 is fixed within each of the pair of through grooves 216.

[0041] When it is necessary to lock the sliding sleeve 211 and the sliding rod 212, the movable sleeve 219 is pushed towards the sliding sleeve 211. When the movable sleeve 219 slides, it drives a pair of push blocks 220 to slide towards the locking block 218. After the movable sleeve 219 drives the pair of push blocks 220 to slide to the outer side of the pair of elastic plates 217 near the locking block 218, the pair of push blocks 220 push the pair of locking blocks 218 towards the sliding rod 212, so that the pair of locking blocks 218 are locked in the locking groove 213, thereby fixing the sliding sleeve 211 and the sliding rod 212.

[0042] like Figures 1 to 6 As shown, a retaining ring 215 is fixed to one end of the locking sleeve 214 outside the movable sleeve 219. The retaining ring 215 is used to limit the movable sleeve 219 and prevent it from slipping off the locking sleeve 214. A rotating seat 209 is fixed to the side wall of each pair of relief grooves 208. The fixing head 210 and the sliding sleeve 211 rotate on a pair of rotating seats 209 respectively. The pair of rotating seats 209 are used for the fixing head 210 and the sliding sleeve 211 to rotate on them respectively.

[0043] Working principle: When the fixing ring 1 is installed into the pipe, the multiple pairs of support plates 204 are first pressed to rotate in opposite directions, and the sliding sleeve 211 and sliding rod 212 are locked together by the locking assembly. Then, the fixing ring 1 and the multiple pairs of support plates 204 are moved into the pipe, and then the sliding sleeve 211 and sliding rod 212 are released by the locking assembly. After release, under the combined force of the multiple pairs of torsion springs 207, the multiple pairs of support plates 204 are pushed to rotate in opposite directions. The multiple pairs of support plates 204 are clamped to the inner wall of the pipe by the multiple pairs of clamping heads 206 at their top ends, thereby placing the fixing ring 1 in the center of the pipe.

[0044] Subsequently, the sliding sleeve 211 and the sliding rod 212 are locked together using the locking assembly, thereby fixing each pair of support plates 204 and thus securing the fixing ring 1. When it is necessary to remove the fixing ring 1 from the pipe, the sliding sleeve 211 and the sliding rod 212 are loosened using the locking assembly, and then the multiple pairs of support plates 204 are pressed to rotate in opposite directions. The sliding sleeve 211 and the sliding rod 212 are then locked together using the locking assembly. Finally, the fixing ring 1 and the multiple pairs of support plates 204 can be moved out of the pipe.

[0045] It will be apparent to those skilled in the art that this disclosure is not limited to the details of the exemplary embodiments described above, and that this disclosure can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of this disclosure is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this disclosure. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A 25-stage airflow measurement structure, characterized in that, include: A fixing ring, wherein a mounting bracket is fixed inside the fixing ring; The fan is mounted on the mounting bracket; and A central positioning mechanism is installed on the outer wall of a fixed ring. The central positioning mechanism includes: two pairs of mounting plates, multiple pairs of support plates, a fixed head, a sliding sleeve, a sliding rod, and a locking assembly. The two pairs of mounting plates are fixed at equal intervals on the outer wall of the fixed ring. Each pair of mounting plates is fixed with a bearing seat, and each bearing seat has a rotating shaft fixed at both ends. The multiple pairs of support plates rotate on multiple pairs of rotating shafts, and elastic elements are installed between the multiple pairs of support plates and the mounting plates. A clamping head is fixed at the end of each pair of support plates away from the mounting plate. A clearance groove is chiseled in each pair of support plates. The fixed head and the sliding sleeve rotate on the side wall of a pair of clearance grooves. The sliding rod is fixed to one side of the fixed head and slides on the sliding sleeve. The locking assembly is installed on the side of the sliding sleeve away from the fixed head and is used to lock the sliding sleeve and the sliding rod together.

2. The 25-stage airflow measurement structure according to claim 1, characterized in that, A splitter plate is provided on the support arm of the mounting bracket, at the end closest to the fan.

3. The 25-stage airflow measurement structure according to claim 1, characterized in that, Each pair of support plates has a rotating head fixed on one side wall of the end near the mounting plate, and each pair of rotating heads rotates on a rotating shaft.

4. The 25-stage airflow measurement structure according to claim 3, characterized in that, Each pair of support plates rotates symmetrically on a pair of axes.

5. The 25-stage airflow measurement structure according to claim 1, characterized in that, The elastic element is a torsion spring, which is mounted on the rotating shaft and located between the inner wall of the support plate and the top wall of the mounting plate.

6. The 25-stage airflow measurement structure according to claim 3, characterized in that, Each pair of support plates has interlocking teeth fixed on one end of its rotating head.

7. The 25-stage airflow measurement structure according to claim 1, characterized in that, The outer wall of the clamping head is provided with anti-slip texture.

8. The 25-stage airflow measurement structure according to claim 1, characterized in that, The locking assembly includes: The locking sleeve is fixed to the side of the sliding sleeve away from the fixed head, and through grooves are cut at both its upper and lower ends. A pair of elastic plates, one end of which is fixed to one end of a pair of through slots, and a locking block is fixed to the other end of the pair of elastic plates and the side near the slide rod. A pair of slots are respectively carved on the upper and lower sides of the slide bar; and The movable sleeve slides on the locking sleeve, and each of the two sleeves has a push block fixed in a pair of through slots.

9. The 25-stage airflow measurement structure according to claim 8, characterized in that, A retaining ring is fixed to one end of the locking sleeve located outside the movable sleeve.

10. The 25-stage airflow measurement structure according to claim 1, characterized in that, Each pair of relief grooves has a rotating seat fixed on its sidewall, and the fixed head and the sliding sleeve rotate on a pair of rotating seats respectively.

Images