CN217484024U - Measuring device - Google Patents
Measuring device Download PDFInfo
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- CN217484024U CN217484024U CN202220315587.5U CN202220315587U CN217484024U CN 217484024 U CN217484024 U CN 217484024U CN 202220315587 U CN202220315587 U CN 202220315587U CN 217484024 U CN217484024 U CN 217484024U
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- gear
- threaded rod
- air bag
- measuring device
- cover plate
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- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The embodiment of the application discloses measuring device includes: a support table; the pushing assembly penetrates from the bottom surface of the supporting platform to the top surface of the supporting platform; the driving component is positioned below the supporting platform and used for driving the pushing component to move up and down; a shell which is positioned on the support table and used for bearing the air bag and one end of which is open; and a cover plate covering the opening; the bottom surface of the cover plate is provided with a pressure sensor; the pressure sensor is used for detecting the pressure of the air bag on the cover plate; the pushing assembly comprises: the threaded rod is connected with the driving assembly and penetrates from the bottom surface of the supporting table to the inner cavity of the shell; the pushing sheet is positioned in the inner cavity of the shell and is fixedly connected with the top end of the threaded rod; the device still includes: and a measuring member for measuring the moving distance of the push piece. The device can measure the folding size of the folded air bag under different pressures, is simple to operate, has small error, can test multiple groups of data in a short time, and provides convenience for researching the folding compression performance of the flexible air bag.
Description
Technical Field
The application relates to the technical field of space product structures, in particular to a measuring device.
Background
The space flexible air bag is inflated and unfolded, and can be applied to a spacecraft structure or functional parts of a spacecraft. Because the flexible material is adopted, the flexible material can be folded and packaged before launching, and the launching volume is greatly saved; after entering the track, the track is unfolded through inflation and then is subjected to molding and curing to ensure that the track has sufficient strength and rigidity. The inflatable airbag can be used for completing a plurality of special tasks of the space.
However, since the airbag is flexible and the degree of vacuum for air evacuation of the airbag is difficult to ensure, it is difficult to obtain a more accurate folded size, particularly the folded height, at one time after folding and compressing. A large number of folding compression tests are required, and the folding size of the air bag under a certain pressure is determined to provide a basis for the subsequent design of a storage protection air bag; however, the using method of the device in the prior art is complex in operation, large in error and long in operation time.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a measuring device to solve at least one among the above-mentioned technical problem.
In order to achieve at least one of the above purposes, the following technical scheme is adopted in the application:
the application provides a measuring device, includes:
a support table;
the pushing assembly penetrates from the bottom surface of the supporting platform to the top surface of the supporting platform;
the driving component is positioned below the supporting platform and used for driving the pushing component to move up and down;
a shell which is positioned on the supporting table, is used for bearing the air bag and has an open end; and a cover plate covering the opening;
the bottom surface of the cover plate is provided with a pressure sensor; the pressure sensor is used for detecting the pressure of the air bag on the cover plate;
the push assembly includes:
the threaded rod is connected with the driving assembly and penetrates from the bottom surface of the supporting table to the inner cavity of the shell; and
the pushing piece is positioned in the inner cavity of the shell and is fixedly connected with the top end of the threaded rod;
the device further comprises: and a measuring member for measuring the moving distance of the push piece.
Optionally, the side wall of the shell comprises a vertically arranged observation port and a graduated scale;
the viewing port and the scale together form the measuring member.
Optionally, the measuring member is a distance sensor provided on a bottom surface of the push sheet.
Optionally, the periphery of the pushing piece can be attached to the inner wall of the shell to slide up and down.
Optionally, the drive assembly comprises: a support body;
the bevel gear pair is positioned on the supporting body and used for driving the threaded rod to move up and down;
and the hand wheel is used for driving the bevel gear pair to rotate.
Optionally, the helical gear pair comprises: a first gear; and
a second gear meshed with the first gear;
the second gear is in threaded connection with the threaded rod and drives the threaded rod to move up and down.
Optionally, the support comprises:
a vertical support portion on the ground;
the transverse supporting part extends from the top of the vertical supporting part to one side;
a first groove used for placing the first gear is formed in a concave mode from one side, far away from the transverse supporting portion, of the vertical supporting portion to the direction of the transverse supporting portion along the top surface of the vertical supporting portion;
a second groove for containing the second gear is formed by the surface of one side of the transverse supporting part, which is far away from the vertical supporting part, and is sunken towards the direction of the first groove along two opposite sides of the transverse supporting part;
the first groove and the second groove are arranged in a penetrating mode.
Optionally, the first gear and the second gear are vertically disposed in a horizontal plane.
Optionally, the transverse support part comprises a threaded hole for the threaded rod to pass through;
the threaded rod penetrates through the second gear from the top surface of the transverse supporting portion to extend to the position below the bottom surface of the transverse supporting portion.
Optionally, the apparatus further comprises:
a controller electrically connected to the pressure sensor;
and the pressure sensor transmits the detected pressure value of the air bag to the cover plate to the controller.
The beneficial effect of this application is as follows:
aiming at the problems in the prior art, in the measuring device provided by the application, the folded air bag is placed between the pushing sheet and the cover plate, the pushing sheet is pushed by the driving assembly to compress the air bag, meanwhile, the pressure sensor detects the pressure of the air bag on the cover plate, and the measuring piece measures the compression amount of the air bag; thus, the folded size of the folded air bag under different pressures can be measured. The application provides a measuring device easy operation, the error is little, and the short time can test multiunit data, facilitates for studying flexible gasbag folding compression performance.
Drawings
The following describes the embodiments of the present invention in further detail with reference to the attached drawings.
Fig. 1 is a schematic view showing an overall structure of a measuring apparatus according to an embodiment of the present application, in which a cover plate is in a closed state.
Fig. 2 shows an overall structure diagram of a measuring apparatus in an embodiment of the present application when a cover plate is in an open state.
Fig. 3 shows a front view of a cover plate in a measuring device in an embodiment of the present application in a closed state.
Fig. 4 shows a schematic structural diagram of a supporting table, a pushing assembly and a driving assembly of the measuring device in an embodiment of the present application.
Fig. 5 shows a schematic structural diagram of a pushing assembly and a driving assembly of a measuring device in an embodiment of the present application.
Fig. 6 shows a schematic structural diagram of the first gear of the bevel gear pair in the drive assembly of the measuring device in an embodiment of the present application in cooperation with a hand wheel.
Fig. 7 shows a schematic structural diagram of a support body in a drive assembly of a measuring device in an embodiment of the present application.
Detailed Description
In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of one or more embodiments. It may be evident, however, that such embodiment(s) may be practiced without these specific details.
In the description of the present application, it should be noted that the terms "upper", "lower", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience in describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and operate, and thus, should not be construed as limiting the present application. Unless expressly stated or limited otherwise, the terms "mounted," "connected," and "connected" are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.
It is further noted that, in the description of the present application, relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
To solve the problems in the prior art, an embodiment of the present application provides a measuring apparatus, as shown in fig. 1 to 7, including: a support table 1; a pushing component 2 penetrating from the bottom surface of the supporting table 1 to the top surface of the supporting table 1; the driving component is positioned below the supporting table 1 and used for driving the pushing component 2 to move up and down; a shell 4 which is positioned on the support table 1 and used for bearing the air bag and has an open end; and a cover plate 5 covering the opening; the bottom surface of the cover plate 5 is provided with a pressure sensor 6; the pressure sensor 6 is used for detecting the pressure of the air bag on the cover plate 5; the pushing assembly 2 comprises: a threaded rod 21 connected with the driving component and penetrating from the bottom surface of the supporting table 1 into the inner cavity of the shell 4; and a pushing sheet 22 which is positioned in the inner cavity of the shell 4 and is fixedly connected with the top end of the threaded rod 21; the device further comprises: a measuring member for measuring the moving distance of the push piece 22.
In the above embodiment of the application, the folded airbag is placed between the pushing sheet 22 and the cover plate 5, the driving assembly pushes the pushing sheet 22 to compress the airbag, meanwhile, the pressure sensor 6 detects the pressure of the airbag on the cover plate 5, and the measuring part measures the compression amount of the airbag; thus, the folded size of the folded air bag under different pressures can be measured. The application provides a measuring device easy operation, the error is little, and the multiunit data can be tested to the short time, facilitates for the folding compression performance of research flexible air bag.
In a specific embodiment, as shown in fig. 4, the sidewall of the housing 4 includes a vertically disposed viewing port 41 and a graduated scale 42; the viewing port 41 and the scale 42 together form the measuring member. Specifically, when the push sheet 22 pushes the airbag to compress, the scale 42 can record the compression amount of the airbag in real time, and record the pressure value received by the pressure sensor 6, so as to measure the folding size of the folded airbag under different pressures.
In one embodiment, the measuring member may also be a distance sensor (not shown) disposed on the bottom surface of the pushing piece 22. Specifically, the distance sensor may measure a real-time distance between the bottom of the push plate 22 and the bottom of the housing 4, that is, a compression amount of the folded airbag, and record a pressure value received by the pressure sensor 6, so as to measure a folding size of the folded airbag under different pressures. Of course, in practical applications, the distance sensor may also be disposed at the bottom of the housing 4, and the distance between the bottom of the pushing piece 22 and the bottom of the housing 4 may also be measured.
In one embodiment, the pushing piece 22 has an outer periphery that can slide up and down against the inner wall of the housing 4. Therefore, the pushing sheet 22 can enable the air bag to integrally move upwards in the process of pushing the air bag to be compressed, and the phenomenon that the edge of the air bag overflows to the bottom of the pushing sheet 22 and the compression is incomplete due to the fact that a gap is reserved between the periphery of the pushing sheet 22 and the shell 4 cannot occur. Specifically, the cross section of the shell 4 and the cross section of the pushing piece 22 are completely the same as the cross section of the folded airbag in shape and size; if the cross section after the airbag is folded is rectangular, the cross section of the housing 4 and the cross section of the push piece 22 are also rectangular, and if the cross section after the airbag is folded is triangular, the cross section of the housing 4 and the cross section of the push piece 22 are also triangular.
In a specific embodiment, the drive assembly comprises: a support body 31; a bevel gear pair 32 located on the supporting body 31 for driving the threaded rod 21 to move up and down; a hand wheel 33 for driving the helical gear pair 32 to rotate. The hand wheel 33 drives the bevel gear pair 32 to rotate, the bevel gear pair 32 drives the threaded rod 21 to move, the threaded rod 21 drives the pushing piece 22 to move, and the pushing piece 22 compresses the air bag. In practical applications, the hand wheel 33 may be replaced by another power device as long as the driving of the helical gear pair 32 can be realized.
In practical application, a functional relationship between the thread of the bevel gear pair 32 and the moving distance of the threaded rod 21 can be found, and a relationship between the compression amount of the folded airbag and the pressure value of the airbag received by the pressure sensor 6 to the cover plate 5 can be obtained through the functional relationship, so that the folding size of the folded airbag under different pressures can be measured. Thus, the pressure value of the pressure sensor 6 can be made to correspond to the compression amount of the airbag.
Specifically, the helical gear pair 32 includes: a first gear 321; and a second gear 322 engaged with the first gear 321; the second gear 322 is screwed with the threaded rod 21 and drives the threaded rod 21 to move up and down. The first gear 321 and the second gear 322 are vertically disposed in a horizontal plane. Specifically, the hand wheel 33 drives the first gear 321 to rotate, the first gear 321 drives the second gear 322 to rotate, and the second gear 322 drives the threaded rod 21 to move up and down.
Specifically, the support body 31 includes: a vertical support portion 311 on the ground; a transverse supporting portion 312 extending from the top of the vertical supporting portion 311 to one side; a first groove 3111 for placing the first gear 321 is concavely formed from one side of the vertical supporting portion 311 far away from the horizontal supporting portion 312 to the direction of the horizontal supporting portion 312 along the top surface of the vertical supporting portion 311; a second groove 3121 for accommodating the second gear 322 is formed by recessing a side surface of the lateral support portion 312 away from the vertical support portion 311 in a direction of the first groove 3111 along two opposite sides of the lateral support portion 312; the first groove 3111 and the second groove 3121 are disposed through. Thus, the first gear 321 and the second gear 322 can be used in cooperation to form the helical gear pair 32.
Further, the transverse supporting portion 312 includes a threaded hole 3122 for the threaded rod 21 to pass through; the threaded rod 21 extends from the top surface of the lateral support portion 312 through the second gear 322 to below the bottom surface of the lateral support portion 312. The vertical support portion 311 includes a through hole 3112 through which the hand wheel 33 passes, and the hand wheel 33 passes through the through hole 3112 and is connected and fixed to the first gear 321.
In a specific embodiment, the apparatus further comprises: a controller electrically connected to the pressure sensor 6; the pressure sensor 6 transmits the detected pressure value of the airbag to the cover plate 5 to the controller. Here, the controller may be connected with a display screen, and the pressure value measured by the pressure sensor 6 may be transmitted to the display screen through the controller, so that the worker may directly see the pressure value of the pressure sensor 6.
The application provides a method for using a measuring device, which comprises the following steps: firstly, moving the pushing sheet 22 until the distance between the pushing sheet and the cover plate 5 is equal to the thickness of the folded air bag, then placing the folded air bag into the shell 4, closing and locking the cover plate 5, and outputting the pressure value of the air bag to the cover plate 5 by the pressure sensor 6; then, the hand wheel 33 is rotated, the helical gear pair 32 drives the threaded rod 21 to move up and down, and the threaded rod 21 drives the pushing piece 22 to move up and down; the height of the folded airbag under different pressures can be obtained by the pressure value measured by the pressure sensor 6 and the compression amount of the airbag obtained by the measuring part. Therefore, the compression amount of the air bag under different pressures can be obtained, and the relation between the pressure value and the compression amount of the air bag can be further obtained.
And after the pressure value reaches the expected value, the height of the air bag at the moment is measured by the measuring part, and the compression amount of the air bag and the pressure value of the air bag to the cover plate 5 at the moment are also obtained.
The measuring device provided by the application can be used for guiding the study of the creep property of the folded flexible air bag and providing a basis for the study of the compression performance of the folded space flexible air bag.
Obviously, the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention, and it is obvious for those skilled in the art to make other variations or changes based on the above descriptions, and all the embodiments cannot be exhausted here, and all the obvious variations or changes that belong to the technical solutions of the present invention are still in the protection scope of the present invention.
Claims (10)
1. A measuring device, comprising:
a support table;
the pushing assembly penetrates from the bottom surface of the supporting platform to the top surface of the supporting platform;
the driving component is positioned below the supporting platform and used for driving the pushing component to move up and down;
a shell which is positioned on the support table, is used for bearing the air bag and has an opening at one end; and a cover plate covering the opening;
the bottom surface of the cover plate is provided with a pressure sensor; the pressure sensor is used for detecting the pressure of the air bag on the cover plate;
the push assembly includes:
the threaded rod is connected with the driving assembly and penetrates from the bottom surface of the supporting table to the inner cavity of the shell; and
the pushing piece is positioned in the inner cavity of the shell and is fixedly connected with the top end of the threaded rod;
the device further comprises: and a measuring member for measuring the moving distance of the push sheet.
2. The measuring device of claim 1,
the side wall of the shell comprises a vertically arranged observation port and a graduated scale;
the viewing port and the scale together form the measuring member.
3. The measuring device of claim 1,
the measuring piece is a distance sensor arranged on the bottom surface of the pushing piece.
4. The measuring device of claim 1,
the periphery of the pushing sheet can be attached to the inner wall of the shell to slide up and down.
5. The measuring device of claim 1,
the drive assembly includes: a support body;
the bevel gear pair is positioned on the supporting body and used for driving the threaded rod to move up and down;
and the hand wheel is used for driving the bevel gear pair to rotate.
6. A measuring device according to claim 5,
the helical gear pair includes: a first gear; and
a second gear meshed with the first gear;
the second gear is in threaded connection with the threaded rod and drives the threaded rod to move up and down.
7. A measuring device according to claim 6,
the support body includes:
a vertical support portion on the ground;
the transverse supporting part extends from the top of the vertical supporting part to one side edge;
a first groove for placing the first gear is formed in a concave mode from one side, far away from the transverse supporting portion, of the vertical supporting portion to the direction of the transverse supporting portion along the top surface of the vertical supporting portion;
a second groove for containing the second gear is formed by the surface of one side of the transverse supporting part far away from the vertical supporting part and is sunken towards the direction of the first groove along two opposite sides of the transverse supporting part;
the first groove and the second groove are arranged in a penetrating mode.
8. The measurement device of claim 7,
the first gear and the second gear are vertically arranged in a horizontal plane.
9. The measurement device of claim 7,
the transverse supporting part comprises a threaded hole for the threaded rod to pass through;
the threaded rod penetrates through the second gear from the top surface of the transverse supporting portion and extends to the position below the bottom surface of the transverse supporting portion.
10. The measuring device of claim 1,
the device further comprises:
a controller electrically connected to the pressure sensor;
the pressure sensor transmits the detected pressure value of the air bag to the cover plate to the controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220315587.5U CN217484024U (en) | 2022-02-16 | 2022-02-16 | Measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220315587.5U CN217484024U (en) | 2022-02-16 | 2022-02-16 | Measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217484024U true CN217484024U (en) | 2022-09-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220315587.5U Active CN217484024U (en) | 2022-02-16 | 2022-02-16 | Measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217484024U (en) |
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2022
- 2022-02-16 CN CN202220315587.5U patent/CN217484024U/en active Active
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