Fixing mechanism and air volume measuring device

Abstract

The utility model discloses a fixing mechanism and an air volume measuring device, the fixing mechanism is used for fixing air volume measuring equipment, the fixing mechanism comprises at least two groups of connecting assemblies and at least two groups of adjusting assemblies, and the at least two groups of connecting assemblies are arranged at intervals; the at least two groups of adjusting assemblies are respectively connected with the at least two groups of connecting assemblies, are configured to be connected with the air volume measuring equipment, and are used for adjusting the distance between the air volume measuring equipment and the connecting assemblies and pushing the connecting assemblies to be attached to the inner wall of a to-be-measured pipeline; the device can drive the air volume measuring equipment to move at different positions in the pipeline so as to adapt to different detection requirements, the flexibility of air volume detection is improved, and the accuracy of a detection result is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of civil air defense engineering, specifically relates to a fixing mechanism and air volume measuring device. BACKGROUND

[0002] The ventilation and air conditioning system inside the civil air defense engineering is closely related to the environment outside the engineering, the ventilation system needs to guarantee the breathing needs of the personnel inside the engineering and the air quality of the engineering, needs to introduce fresh air from the outside of the engineering, and simultaneously removes the dirty air, therefore, the exhaust system is communicated with the outside, and the air volume meter needs to be used in the process of detecting the air volume of the civil air defense engineering, the air volume meter is connected with the through pipe, the air volume meter is convenient for detecting the air, and the air volume meter and the through pipe need to be fixed in the process of connecting the air volume meter and the through pipe.

[0003] The civil air defense engineering air volume measuring device provided in the publication No. CN215639622U includes a fixing assembly and a dust screen group, the dust screen group is welded to the inner wall of one group of arc-shaped plates, and the dust screen group includes a screen plate, a ring plate located at the edge of the screen plate and a sleeve welded to the center of the screen plate, the sleeve is spirally assembled with an air volume meter, and the air volume information detected by the air volume meter is sent to a display screen, so that the air volume data can be viewed and monitored in real time.

[0004] The traditional air volume measuring device usually adopts a fixed installation mode, and the air volume detection structure is directly installed at a specific position of the inner wall of the pipeline. In the case that the airflow distribution in the pipeline is uneven or there is turbulence, the measurement result of the fixed position may not accurately reflect the actual air volume distribution in the entire pipeline, and the air volume at different positions needs to be measured. At this time, the air volume detection structure of the fixed installation must be disassembled and reinstalled, which not only increases the operation complexity, but also may cause measurement errors. UTILITY MODEL CONTENTS

[0005] The utility model aims at overcoming the above technical deficiencies, and provides a fixing mechanism and air volume measuring device, which solves the technical problem that the device must be disassembled and reinstalled when measuring the air volume at different positions in the prior art, which not only increases the operation complexity, but also may cause measurement errors.

[0006] In order to achieve the above technical purpose, the utility model adopts the following technical scheme:

[0007] In the first aspect, the utility model provides a fixing mechanism for fixing an air volume measuring device, which comprises: at least two groups of connecting assemblies and at least two groups of adjusting assemblies, the at least two groups of connecting assemblies are arranged at intervals, the at least two groups of adjusting assemblies are respectively connected with the at least two groups of connecting assemblies, and are arranged to connect the air volume measuring device, for adjusting the distance between the air volume measuring device and the connecting assembly, and pushing the connecting assembly to adhere to the inner wall of the pipeline to be measured.

[0008] In some embodiments, the connecting assembly comprises an elastic connecting member and an abutting member, the abutting member is connected with the adjusting assembly through the elastic connecting member to connect the inner wall of the pipeline under the elastic restoring force of the elastic connecting member.

[0009] In some embodiments, the elastic connecting member comprises a plurality of springs, the plurality of springs are arranged in sequence on the outside of the adjusting assembly, one end of the spring is connected with the adjusting assembly, and the other end is connected with the abutting member.

[0010] In some embodiments, the abutting member comprises a mounting shell and a rolling wheel, the mounting shell is mounted on the outside of the adjusting assembly, the rolling wheel is rotatably mounted on the inside of the mounting shell through a bearing, and the outer wall of the rolling wheel is in contact with the inner wall of the pipeline.

[0011] In some embodiments, the fixing mechanism further comprises a first driving member, a driving shaft of the first driving member is connected with one of the rolling wheels, and the first driving member is used to drive the rolling wheel to roll circumferentially along the inner wall of the pipeline to drive the air volume measuring device to rotate around the axis of the pipeline.

[0012] In some embodiments, the connecting assembly and the adjusting assembly are both provided with two groups, and the two groups of the connecting assembly and the two groups of the adjusting assembly are arranged on opposite sides of the air volume measuring device.

[0013] In some embodiments, the adjusting assembly comprises a telescopic adjusting part and a driving part, one end of the telescopic adjusting part is connected with the connecting assembly, the other end of the telescopic adjusting part is connected with the air volume measuring device, and the driving part is connected with the telescopic adjusting part to drive the telescopic adjusting part to telescope and drive the air volume measuring device to move between the connecting assemblies.

[0014] In some embodiments, the telescopic adjusting part is a scissor type lifting structure.

[0015] In some embodiments, the fixing mechanism further comprises a second driving member and a synchronous belt, the second driving member is connected with the driving part of one of the scissor type lifting structures, and the synchronous belt is sleeved and mounted between the driving parts of the two scissor type lifting structures to keep the driving parts of the two scissor type lifting structures rotating synchronously.

[0016] In the second aspect, the utility model also provides an air volume measuring device, which comprises the fixing mechanism and the air volume measuring device according to any one of the above.

[0017] Compared with the prior art, the fixing mechanism and the air volume measuring device provided by the utility model, through setting air volume measuring equipment, at least two groups of connecting components and at least two groups of adjusting components, the distance between air volume measuring equipment and connecting components is adjusted by adjusting components, through the cooperation of multiple adjusting components, air volume measuring equipment can move at different positions in the pipeline to adapt to different detection requirements. The scheme improves the flexibility of air volume detection and ensures the accuracy of detection results. Meanwhile, the design of connecting components and adjusting components can make connecting components abut against the inner wall of the pipeline to be detected, thereby realizing the rapid installation of air volume measuring equipment, significantly improving the installation and disassembly efficiency of the device and saving the operation time. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is the overall structure schematic view of the fixing mechanism and the air volume measuring device provided by the utility model embodiment;

[0019] Figure 2 It is the overall structure schematic view of the fixing mechanism and the air volume measuring device provided by the utility model embodiment after adjustment;

[0020] Figure 3 It is the sectional structure schematic view of the connecting component of the fixing mechanism and the air volume measuring device provided by the utility model embodiment;

[0021] Figure 4 It is the front view structure schematic view of the connecting component of the fixing mechanism and the air volume measuring device provided by the utility model embodiment;

[0022] Figure 5 It is the structure schematic view of the adjusting component of the fixing mechanism and the air volume measuring device provided by the utility model embodiment.

[0023] BRIEF DESCRIPTION OF DRAWINGS:

[0024] 1, air volume measuring equipment;11, mounting bracket;12, air volume meter;

[0025] 2, connecting component;21, spring;22, mounting shell;23, rolling wheel;24, guide telescopic rod;

[0026] 3, adjusting component;31, first fixed seat;32, second fixed seat;33, adjusting seat;34, first connecting rod;35, second connecting rod;36, positive and negative toothed screw;

[0027] 4, first driving part;5, second driving part;51, limiting rod;6, synchronous belt;7, civil air defense pipeline. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical scheme and advantages of the utility model clearer and more apparent, the utility model will be further described in detail below in combination with the drawings and examples.

[0029] In order to solve the technical problem that when the air volume of different positions is measured, the device must be disassembled and reinstalled, which not only increases the operation complexity, but also may cause measurement error, the utility model provides a fixing mechanism and air volume measuring device, which can drive the air volume measuring equipment to move at different positions in the pipeline to adapt to different detection requirements, improve the flexibility of air volume detection and ensure the accuracy of detection results.

[0030] It should be noted that the fixing mechanism of the utility model is used for but not limited to air volume measuring device of civil air defense pipeline, in order to facilitate the description, in the utility model, only the fixing mechanism applied to the air volume measuring device of civil air defense pipeline is taken as an example for description, and the principle of the fixing mechanism applied to other types of equipment is substantially the same with the principle of the fixing mechanism applied to the air volume measuring device of civil air defense pipeline, which will not be described here.

[0031] Please refer to Figure 1 And Figure 2 , the first aspect, the scheme embodiment provides a fixing mechanism for fixing air volume detection equipment 1, comprising: at least two groups of connecting components 2 and at least two groups of adjusting components 3, the air volume measuring equipment 1 is used for detecting air volume;At least two groups of connecting components 2 are arranged at intervals;At least two groups of adjusting components 3 are connected with at least two groups of connecting components 2 respectively, and are configured to connecting air volume measuring equipment 1, for adjusting the distance between air volume measuring equipment 1 and connecting component 2, and pushing connecting component 2 to adhere to the inner wall of the pipe to be measured.

[0032] In the device, at least two groups of adjusting components 3 are connected with at least two groups of connecting components 2 arranged at intervals and connecting air volume measuring equipment 1, which can push connecting component 2 to adhere to the inner wall of the pipe to be measured, so as to fix air volume measuring equipment 1 in the pipe to be measured, adjusting component 3 is located between connecting component 2 and air volume measuring equipment 1, adjusting component 3 can adjust the distance between air volume measuring equipment 1 and connecting component 2, through the cooperation and adjustment of multiple adjusting components 3, air volume measuring equipment 1 can move at different positions in the pipeline to adapt to different detection requirements.

[0033] In some possible embodiments, the connecting assembly 2 and the adjusting assembly 3 are both provided with two groups, the two groups of adjusting assemblies 3 are respectively arranged on opposite sides of the air volume measuring device 1, and one end of each of the two groups of adjusting assemblies 3 is connected with the air volume measuring device 1, and the other end is connected with the two groups of connecting assemblies 2, so as to abut against the inner wall of the civil air pipe 7 through the connecting assembly 2, and realize the quick installation of the air volume measuring device 1. Meanwhile, under the adjustment and cooperation of the two groups of adjusting assemblies 3, the air volume measuring device 1 can be driven to move between the two connecting assemblies 2, so as to achieve the purpose of adjusting the detection position.

[0034] Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 , in order to improve the stability of the installation of the air volume measuring device 1, in the embodiment, the connecting assembly 2 comprises an elastic connecting piece and an abutting piece, the abutting piece is connected with the adjusting assembly 3 through the elastic connecting piece, the design of the elastic connecting piece allows the connecting assembly 2 to have a certain buffering capacity when subjected to external force, so as to better adapt to the irregular shape or slight size change of the inner wall of the pipe. The abutting piece directly contacts the inner wall of the measured pipe, and through the elastic restoring force of the elastic connecting piece, the abutting piece can be closely attached to the inner wall of the pipe, so as to ensure the stability of the air volume measuring device 1 and the accuracy of the measurement.

[0035] In one of the embodiments, the elastic connecting piece comprises a plurality of springs 21, and the abutting piece comprises a mounting shell 22 and a rolling wheel 23.

[0036] Specifically, the plurality of springs 21 are sequentially arranged on the outside of the adjusting assembly 3, and are sequentially arranged along the outside of the adjusting assembly 3, one end of the spring 21 is fixedly connected with the adjusting assembly 3, and the other end is fixedly connected with the mounting shell 22. A guide telescopic rod 24 is further arranged between the abutting piece and the mounting shell 22, one end of the guide telescopic rod 24 is connected with the adjusting assembly 3, and the other end is connected with the abutting piece, the guide telescopic rod 24 and the plurality of springs 21 are arranged in parallel, for guiding and limiting the movement direction of the abutting piece, preventing the abutting piece from deviating or shaking when subjected to external force, so as to further ensure the stability of the air volume measuring device 1 and the accuracy of the measurement.

[0037] Further, the rolling wheel 23 is rotatably installed on the inside of the mounting shell 22 through a bearing, four rolling wheels 23 are installed on each mounting shell 22, the outer side wall of the rolling wheel 23 contacts the inner wall of the pipe to be measured, so that the support of the connecting assembly 2 is more stable. And the outside of one of the rolling wheels 23 is provided with a first driving piece 4, the driving shaft of the first driving piece 4 is connected with the rotating shaft of the rolling wheel 23, so as to drive the rolling wheel 23 to roll along the inner wall of the pipe to be measured, so as to drive the air volume measuring device 1 to rotate around the axis of the pipe to be measured, and then realize the air volume detection at different angles and directions in the pipe.

[0038] Please refer to Figure 1 , Figure 2 and Figure 5 In this embodiment, the adjusting assembly 3 is composed of a telescopic adjusting part and a driving part. One end of the telescopic adjusting part is connected with the connecting assembly 2, and the other end is connected with the air volume measuring device 1. The driving part is connected with the telescopic adjusting part to drive the telescopic adjusting part to realize the telescopic movement of the telescopic adjusting part, so as to drive the air volume measuring device 1 to move between the connecting assembly 2. Through the telescopic length adjustment of the telescopic adjusting part on both sides of the air volume measuring device 1, the position of the air volume measuring device 1 in the pipeline can be accurately controlled.

[0039] In one embodiment, the telescopic adjusting part is a scissor lifting structure, which specifically includes a first fixed seat 31, a second fixed seat 32, two adjusting seats 33, two first connecting rods 34 and two second connecting rods 35. The driving part includes a positive and negative toothed screw 36. The first fixed seat 31 is fixedly connected with the air volume measuring device 1, and the second fixed seat 32 is installed on the mounting shell 22. One end of each of the two first connecting rods is rotatably connected with the first fixed seat 31, and the other end is rotatably connected with one end of each of the two adjusting seats 33. One end of each of the two second connecting rods is rotatably connected with the second fixed seat, and the other end is rotatably connected with the other end of each of the two adjusting seats 33. The positive toothed part and the negative toothed part at both ends of the positive and negative toothed screw 36 are respectively threadedly connected with the two adjusting seats 33. When the positive and negative toothed screw 36 rotates, it can drive the two adjusting seats 33 to move towards or away from each other, and then drive the first fixed seat 31 to move relative to the second fixed seat 32 through the transmission of the first connecting rods 34 and the second connecting rods 35, so as to realize the adjustment of the position of the air volume measuring device 1 in the pipeline.

[0040] Further, in some embodiments, the fixing mechanism further includes a second driving member 5 and a synchronous belt 6. The second driving member 5 is connected with one of the positive and negative toothed screws 36 and can drive the positive and negative toothed screw 36 to rotate. In the two adjusting assemblies 3, the screw rotation directions of the two positive and negative toothed screws 36 are opposite. The synchronous belt 6 is sleeved and installed between the middle positions of the two positive and negative toothed screws 36 to keep the synchronous rotation of the two positive and negative toothed screws 36. The start of the second driving member 5 will drive the positive and negative toothed screw 36 connected therewith to rotate. Due to the action of the synchronous belt 6, the other positive and negative toothed screw 36 will also rotate synchronously. The rotation directions of the two positive and negative toothed screws 36 are opposite. Through the transmission of the first connecting rods 34 and the second connecting rods 35, the two adjusting seats 33 of one set of adjusting assemblies 3 move outward, and the two adjusting seats 33 of the other set of adjusting assemblies 3 move inward, realizing telescopic compensation and ensuring the stability of the measuring structure in the pipeline while adjusting the position.

[0041] Further, the air volume measuring device 1 is provided with a tensioning wheel, which cooperates with the synchronous belt 6 to maintain the tension of the synchronous belt 6 and prevent the synchronous belt 6 from loosening after long-term use or operation.

[0042] Preferably, in the present embodiment, the second driving member 5 and the first driving member 4 are both motors, and the second driving member 5 is further provided with a limiting rod 51 connected with the adjusting seat 33 in sliding mode. Of course, in other possible embodiments, other types of driving devices can also be used, such as hydraulic driving devices or pneumatic driving devices, as long as the driving requirements can be met.

[0043] In a second aspect, the present application also provides an air volume measuring device, which comprises the fixing mechanism and the air volume measuring device 1 according to any one of the above embodiments, wherein the air volume measuring device 1 is arranged between the two connecting assemblies 2, and through the adjustment of the adjusting assembly 3, the air volume measuring device 1 can be accurately measured at different positions in the pipeline.

[0044] Please refer to Figure 1 and Figure 2 Preferably, in the present embodiment, the air volume measuring device 1 comprises a mounting rack 11 and an air volume meter 12, the mounting rack 11 is arranged between the adjusting assembly 3 and is used to fix and support the air volume meter 12, and the air volume meter 12 is arranged on one side of the mounting rack 11 and is used to accurately measure the air volume in the pipeline. In addition, the device further comprises a data transmission system, which is connected with the air volume meter 12 and is used to collect and transmit the air volume data to an external processing device in real time. The data transmission system can adopt wireless or wired mode to ensure the stability and accuracy of data transmission.

[0045] Working principle: when the air volume needs to be detected, the whole device is placed in the corresponding position in the civil air defense pipeline 7, so that the rolling wheels 23 of the two connecting assemblies 2 are respectively abutted against the inner walls of the civil air defense pipeline 7, then the second driving member 5 is started, the second driving member 5 drives the reverse screw rod 36 connected therewith to rotate, due to the action of the synchronous belt 6, the other reverse screw rod 36 also rotates synchronously, the rotation of the two reverse screw rods 36 drives the two groups of adjusting seats 33 to move towards each other and in opposite directions, and then through the transmission of the first connecting rod 34 and the second connecting rod 35, the position of the air volume measuring device 1 in the pipeline is adjusted. The first driving member 4 can also be started, which drives the rolling wheels 23 to roll along the inner wall of the civil air defense pipeline 7 in the circumferential direction, so as to drive the air volume measuring device 1 to rotate around the axis of the civil air defense pipeline 7, so as to further adjust the measurement position. The air volume meter 12 accurately measures the air volume in the pipeline on the mounting rack 11, and collects and transmits the air volume data to an external processing device in real time through the data transmission system.

[0046] The utility model discloses a wind volume measuring equipment 1, at least two sets of connecting assembly 2 and at least two sets of adjusting assembly 3 are set up, and the distance between wind volume measuring equipment 1 and connecting assembly 2 is adjusted using adjusting assembly 3, and the cooperation adjustment of multiple adjusting assembly 3 makes wind volume measuring equipment 1 can move at different positions in the pipeline to adapt to different detection needs.

[0047] In the description of the present application, it should be noted that the orientation or position relationship indicated by the terms "upper" and "lower" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. Unless otherwise explicitly specified and limited, the terms "mounting", "connection" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0048] It should be noted that in the present application, relational terms such as "first" and "second" and the like are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply that there is any such actual relationship or order between the entities or operations. Moreover, the terms "include", "contain" or any other variant thereof are intended to cover non-exclusive inclusion, so that the process, method, article or device including a series of elements not only includes those elements, but also includes other elements not explicitly listed or inherent to such process, method, article or device. Without more limitations, the element defined by the sentence "including a" does not exclude the presence of other identical elements in the process, method, article or device including the element.

[0049] The above-described specific embodiments of the utility model do not constitute a limitation on the scope of protection of the utility model. Any various other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A fixing mechanism for fixing a wind volume measuring device, characterized by, The application relates to a fixing mechanism and an air volume measuring device. The fixing mechanism comprises at least two sets of connecting assemblies which are arranged at intervals, and at least two sets of adjusting assemblies which are connected with the at least two sets of connecting assemblies respectively and are arranged to connect the air volume measuring device, and are used for adjusting the distance between the air volume measuring device and the connecting assemblies and pushing the connecting assemblies to adhere to the inner wall of a pipeline to be measured. The connecting assembly comprises an elastic connecting piece and an abutting piece, the abutting piece is connected with the adjusting assembly through the elastic connecting piece, and the elastic connecting piece is used for connecting the inner wall of the pipeline to be measured under the elastic restoring force of the elastic connecting piece. The elastic connecting piece comprises a plurality of springs which are arranged at the outer side of the adjusting assembly in sequence, one end of the spring is connected with the adjusting assembly, and the other end is connected with the abutting piece.

2. The securing mechanism of claim 1, wherein, The abutting piece comprises a mounting shell and a rolling wheel, the mounting shell is mounted at the outer side of the adjusting assembly, the rolling wheel is rotatably mounted at the inner side of the mounting shell through a bearing, and the outer side wall of the rolling wheel is in contact with the inner wall of the pipeline to be measured.

3. The securing mechanism of claim 2, wherein, The fixing mechanism further comprises a first driving piece, a driving shaft of the first driving piece is connected with one of the rolling wheels, and the first driving piece is used for driving the rolling wheel to roll along the inner wall of the pipeline to be measured in the circumferential direction, so as to drive the air volume measuring device to rotate around the axis of the pipeline to be measured.

4. The securing mechanism of claim 2, wherein, The fixing mechanism comprises two sets of connecting assemblies and two sets of adjusting assemblies, the two sets of connecting assemblies and the two sets of adjusting assemblies are arranged at the opposite sides of the air volume measuring device respectively.

5. The securing mechanism of claim 4, wherein, The adjusting assembly comprises a telescopic adjusting part and a driving part, one end of the telescopic adjusting part is connected with the connecting assembly, the other end of the telescopic adjusting part is connected with the air volume measuring device, and the driving part is connected with the telescopic adjusting part and is used for driving the telescopic adjusting part to be telescopic, so as to drive the air volume measuring device to move between the connecting assemblies.

6. The securing mechanism of claim 1, wherein, The telescopic adjusting part is a scissor type lifting structure.

7. The securing mechanism of claim 6, wherein, The fixing mechanism further comprises a second driving piece and a synchronous belt, the second driving piece is connected with the driving part of one of the scissor type lifting structures, and the synchronous belt is sleeved and mounted between the driving parts of the two scissor type lifting structures, so as to keep the driving parts of the two scissor type lifting structures to rotate synchronously.

8. The securing mechanism of claim 7, wherein, The application relates to a fixing mechanism and an air volume measuring device.

9. The securing mechanism of claim 8, wherein, ​ 10. A wind volume measuring device, characterized by ​

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