CN114496646A - Remote transmission type gas density relay - Google Patents
Remote transmission type gas density relay Download PDFInfo
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- CN114496646A CN114496646A CN202210149922.3A CN202210149922A CN114496646A CN 114496646 A CN114496646 A CN 114496646A CN 202210149922 A CN202210149922 A CN 202210149922A CN 114496646 A CN114496646 A CN 114496646A
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 164
- 238000001514 detection method Methods 0.000 claims abstract description 57
- 238000006073 displacement reaction Methods 0.000 claims abstract description 23
- 238000004891 communication Methods 0.000 claims description 9
- 210000004907 gland Anatomy 0.000 claims description 8
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims 1
- 230000008901 benefit Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000008569 process Effects 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 3
- 229910018503 SF6 Inorganic materials 0.000 description 6
- SFZCNBIFKDRMGX-UHFFFAOYSA-N sulfur hexafluoride Chemical compound FS(F)(F)(F)(F)F SFZCNBIFKDRMGX-UHFFFAOYSA-N 0.000 description 6
- 229960000909 sulfur hexafluoride Drugs 0.000 description 6
- 238000013461 design Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 238000009529 body temperature measurement Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000011326 mechanical measurement Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H35/00—Switches operated by change of a physical condition
- H01H35/24—Switches operated by change of fluid pressure, by fluid pressure waves, or by change of fluid flow
- H01H35/26—Details
- H01H35/28—Compensation for variation of ambient pressure or temperature
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Abstract
The invention discloses a remote transmission type gas density relay which comprises a remote transmission detection part, a transmission part and a contact part, wherein the display part comprises a display panel, a corrugated pipe assembly deforms and is linked with the transmission part to move to generate displacement, the remote transmission detection part generates a remote transmission signal for being transmitted to a background according to the displacement of the transmission part, and the contact part transmits the contact signal generated by a microswitch to the background through a wire harness and simultaneously displays the contact signal on the display panel. In the process, as the remote transmission detection part and the contact part generate the remote transmission signal and the contact signal through the displacement action of the transmission part, the signal sources of the remote transmission detection part and the contact part are consistent, the consistency of the detection results of the remote transmission detection part and the contact part can be ensured, the consistency of the density value actually displayed by the mechanical part of the instrument and the data remotely transmitted to the background by the electronic part of the remote transmission type gas density relay can be further ensured, and the remote transmission type gas density relay has the advantage of high detection precision.
Description
Technical Field
The invention relates to the technical field of gas density relays, in particular to a remote transmission type gas density relay.
Background
Sulfur hexafluoride gas has good insulation and arc extinguishing functions, and various sulfur hexafluoride electrical equipment is widely used in the power sector and industrial and mining enterprises. The density of sulfur hexafluoride gas is directly related to the insulation and arc extinction performance, and a sulfur hexafluoride gas density relay is usually used for monitoring the change condition of the sulfur hexafluoride gas density in the equipment.
At present, a remote transmission type sulfur hexafluoride density relay is a mechanical and electronic integrated product, and mechanical measurement of the product generally adopts a Bourdon tube or a corrugated tube as a pressure sensing element and adopts a bimetallic strip or a reference air chamber as a compensation element. The displacement generated by the pressure sensing element is converted and amplified into angular displacement through the movement gear, and the specific pressure value is displayed through the pointer. The electronic part generally adopts a temperature-pressure core body or a chip to acquire pressure and temperature signals, converts the pressure and temperature signals into density data through the operation of a single chip microcomputer, and then transmits the density data to a background. In practical use, because mechanical and electronic measurement principles for pressure and temperature are different, particularly for temperature measurement, a temperature sensor used in an electronic part has different sensitivity to temperature change relative to a bimetallic strip of a mechanical part. The difference between the actually displayed density value of the mechanical part of the instrument and the data remotely transmitted to the background by the electronic part is often large, the difference often occurs in the environment with large temperature fluctuation, and great trouble is brought to users when the instrument is used on site.
Therefore, the remote transmission type gas density relay in the prior art has the problem that the difference between the density value of the mechanical contact of the mechanical part of the instrument and the data remotely transmitted to the background by the electronic part is large.
Disclosure of Invention
The invention aims to solve the problem that the difference between the density value of the mechanical contact of the mechanical part of the instrument and the data remotely transmitted to the background by the electronic part is large in the remote transmission type gas density relay in the prior art.
In order to solve the above problems, an embodiment of the present invention discloses a remote transmission type gas density relay, which includes a meter body, wherein the meter body includes a meter case and a display part arranged at one end of the meter case, a compensation cavity is arranged at one end of an inner cavity of the meter case, which is close to the display part, and a bellows assembly is arranged in the compensation cavity;
the remote transmission type gas density relay further comprises a remote transmission detection component, a transmission component and a contact component, wherein the display component comprises a display panel, and the display panel is in communication connection with the contact component; wherein,
one end of the transmission component is in transmission connection with the corrugated pipe assembly, the other end of the transmission component is located outside the compensation cavity and in transmission connection with the contact component, and the remote transmission detection component is installed in the position, close to the transmission component, in the watch case and used for detecting the displacement of the transmission component.
By adopting the technical scheme, when the corrugated pipe assembly deforms and is linked with the transmission component to move to generate displacement, the remote transmission detection component generates a remote transmission signal which is transmitted to the background according to the displacement of the transmission component, and the contact component generates a contact signal which is transmitted to the background through the wire harness and is displayed on the display panel. In the process, as the remote transmission detection component and the contact component generate the remote transmission signal and the contact signal through the displacement action of the transmission component, the signal sources of the remote transmission detection component and the contact component are consistent, the consistency of detection results of the remote transmission signal and the contact signal can be ensured, the consistency of the actually displayed density value of the mechanical part of the remote transmission type gas density relay and the data remotely transmitted to the background by the electronic part can be further ensured, and the remote transmission type gas density relay has the advantage of high detection precision.
Further, another embodiment of the present invention provides a remote transmission type gas density relay, the remote transmission detecting part including a connecting rod, a moving rod, a coil and a housing; wherein,
the shell is detachably connected to the inner wall surface of the watch shell, the coil is arranged in the shell, the moving rod is positioned in the shell and movably arranged relative to the coil, one end of the connecting rod is in transmission connection with the other end of the transmission part, and the other end of the connecting rod is in transmission connection with one end of the moving rod positioned outside the shell; and,
and the moving rod is provided with a contact for contacting with the coil.
Adopt above-mentioned technical scheme, teletransmission detection part among this embodiment includes connecting rod, carriage release lever, coil and casing, and when teletransmission detection part detected teletransmission signal, accessible connecting rod drove the carriage release lever and removes for the coil for the contact removes for the coil, thereby the displacement of relative movement corresponds with pressure numerical value and generates teletransmission signal, can make the theory of operation that teletransmission formula gas density relay generated teletransmission signal among this embodiment simpler through this means, and the controllability is better.
Specifically, the remote sensing member and the contact member can share a signal source, i.e., the moving position of the transmission member, so that the signal of the remote sensing member can be synchronized with the contact signal.
Further, another embodiment of the present invention provides a remote gas density relay, which further includes a warm-pressure detecting component and an antenna, wherein the warm-pressure detecting component is mounted on the watch case at a position close to the compensation cavity, a detecting end of the warm-pressure detecting component and a space between an outer wall surface of the bellows assembly located in the compensation cavity and an inner wall surface of the compensation cavity are located in the compensation cavity, the warm-pressure detecting component is respectively in communication connection with the antenna and the display panel, the remote detecting component is in communication connection with the antenna, and remote signals detected by the warm-pressure detecting component and the remote detecting component are transmitted to a background through the antenna.
By adopting the technical scheme, the structure and the principle of the remote transmission detection part are limited, only one section of the full range can be tested, the full range can not be measured, and therefore when the remote transmission detection part cannot measure, the temperature and pressure detection part in the embodiment can continuously detect and generate a remote transmission signal as compensation so as to ensure the working stability of the remote transmission type gas density relay.
Further, another embodiment of the present invention provides a remote-transmission-type gas density relay, further including a gland, the temperature and pressure integrated sensor is fixed on a side wall of the compensation cavity through the gland, the temperature and pressure detection component is configured as a temperature and pressure integrated sensor, a side wall of the compensation cavity close to the watch case has a channel communicated with a space between an outer wall surface of the bellows assembly in the compensation cavity and an inner wall surface of the compensation cavity, the temperature and pressure integrated sensor is located in the channel, and a detection end of the temperature and pressure integrated sensor extends to a space between an outer wall surface of the bellows assembly in the compensation cavity and the inner wall surface of the compensation cavity through the channel.
By adopting the technical scheme, the temperature and pressure integrated sensor can be more stably fixed through the gland by arranging the gland in the embodiment. And a channel communicated with the space between the outer wall surface of the corrugated pipe assembly in the compensation cavity and the inner wall surface of the compensation cavity is arranged on one side wall of the compensation cavity close to the watch case, so that an installation space can be provided for the arrangement of the temperature and pressure integrated sensor on one hand, and the space between the detection end of the temperature and pressure integrated sensor and the first corrugated pipe and the second corrugated pipe can be ensured to be communicated to detect the state of gas in the compensation cavity on the other hand. And the structure can prevent the setting of the temperature and pressure integrated sensor from interfering the inside of the compensation cavity.
Further, another embodiment of the present invention provides a remote gas density relay, wherein the contact component comprises a micro switch, a circuit board, a transmission block and an adjusting screw; wherein;
the circuit board is detachably connected to the position, close to the transmission part, of the inner wall surface of the watch case, the micro switch is installed on the circuit board, the transmission block is in transmission connection with the other end of the transmission part, and the end of the transmission block is connected with the micro switch through the adjusting screw.
Adopt above-mentioned technical scheme, this embodiment provides this kind of contact part includes micro-gap switch, circuit board, transmission piece and adjusting screw, and in the use, when transmission part removed, can the linkage movable block and drive adjusting screw and trigger micro-gap switch and produce the contact signal, just can realize the collection work of contact signal through several simple parts of micro-gap switch, circuit board, transmission piece and adjusting screw, and its structure is simpler.
Further, in the embodiment of the present invention, the temperature and voltage detecting component and the remote sensing component are electrically connected to the signal input terminal of the main circuit board, respectively, and the antenna is electrically connected to the signal output terminal of the main circuit board.
Further, another embodiment of the present invention provides a remote transmission type gas density relay, wherein the transmission component includes a transmission rod, the micro switches are provided with at least two, and the two micro switches are symmetrically arranged about an axis of the transmission rod.
By adopting the technical scheme, at least two micro switches are arranged, and the working stability of the remote transmission type gas density relay can be ensured when the at least two micro switches work.
Further, another embodiment of the present invention provides a remote gas density relay, wherein the watch body further comprises a base, the base is fixedly connected to an outer wall surface of the watch case, and a length direction of the base is perpendicular to a length direction of the watch case; and,
an air inlet channel is formed in the base, one end of the air inlet channel is communicated with the outside, and the other end of the air inlet channel is communicated with the space inside the corrugated pipe assembly.
Further, the other end of the intake passage communicates with a space between the first bellows and the second bellows in the bellows assembly.
Adopt above-mentioned technical scheme, the length direction of base is perpendicular with the length direction of watchcase, can make teletransmission formula gas density relay's structure compacter through this kind of setting mode.
Further, another embodiment of the present invention provides a remote gas density relay, where the bellows assembly includes a first bellows and a second bellows, one end of the first bellows is fixedly connected to an inner wall surface of the compensation cavity, and the other end of the first bellows is provided with a bottom cover, and a gap is formed between the bottom cover and the inner wall surface of the compensation cavity;
the second corrugated pipe is sleeved in the first corrugated pipe, one end of the second corrugated pipe is fixedly connected to the inner wall surface of the compensation cavity, the other end of the second corrugated pipe is provided with a base, the other end of the second corrugated pipe is connected to the inner wall surface of the bottom cover through the base, and one end of the transmission part extends into the second corrugated pipe and is fixedly connected with the base.
Further, another embodiment of the present invention provides a remote gas density relay, which further includes a power supply assembly detachably connected to the outer wall surface of the watch case and located at the other end of the compensation cavity, the power supply is electrically connected to the main circuit board, and the display panel, the contact component and the remote detection component are respectively electrically connected to the main circuit board.
By adopting the technical scheme, the remote transmission type gas density relay provided by the embodiment is also provided with the power supply assembly, the power supply assembly can be used as a mobile power supply to supply power for the display panel, the contact component and the remote transmission detection component in real time, and the remote transmission type gas density relay is more convenient to use.
Further, another embodiment of the present invention provides a remote gas density relay, wherein the display panel is configured as a liquid crystal display, and a side of the display panel facing away from the watch case is provided with a cover, and the cover is covered on the periphery of the display panel.
By adopting the technical scheme, the display panel is provided with the display data which can ensure the detection data for the liquid crystal display screen, and one side of the display panel is provided with the cover cap which can protect the display panel.
Additional features and corresponding advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic cross-sectional structural view in a main view direction of a remote transmission type gas density relay according to an embodiment of the present invention;
fig. 2 is a schematic cross-sectional structural diagram of a remote gas density relay according to an embodiment of the present invention.
Description of reference numerals:
10. a watch case; 11. a display panel; 12. arranging wires;
20. a bellows assembly; 21. a tip; 22. a compensation cavity; 23. a first bellows; 24. a second bellows; 25. a base; 26. a bottom cover; 27. a channel;
31. a temperature and pressure integrated sensor; 32. a gland; 33. a connecting wire;
41. a circuit board; 42. a microswitch; 43. a transmission block; 44. an adjusting screw; 45. a junction box; 46. a connecting wire;
50. a transmission rod; 51. a connecting rod; 52. a travel bar; 53. a housing; 54. a coil; 55. a contact; 56. a gasket; 57. a connecting wire; 58. a connecting wire; 59. a connecting wire;
61. an antenna; 62. a cover plate; 63. a connecting wire;
71. a base; 72. a connecting pipe;
81. a main circuit board; 82. a pillar;
92. a cover; 93. opening a hole;
100. a power supply component; 101. a power source; 102. a power supply box; 103. a power supply box cover; 104. a power line.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.
In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.
The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; 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 meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
An embodiment of the present invention provides a remote transmission type gas density relay, which includes a meter body, as shown in fig. 1, the meter body includes a meter case 10 and a display part arranged at one end of the meter case 10, a compensation cavity 22 is arranged at one end of an inner cavity of the meter case 10 close to the display part, the inner cavity of the compensation cavity 22 is communicated with the inner cavity of the meter case 10, and a bellows assembly 20 is arranged in the compensation cavity 22.
Further, in this embodiment, the remote transmission type gas density relay further includes a remote transmission detection component, a transmission component and a contact component, the display component includes a display panel 11, and the display panel 11 is in communication connection with the contact component.
Furthermore, in the present embodiment, one end of the transmission component is drivingly connected to the bellows assembly 20, the other end of the transmission component is located outside the compensation cavity 22 and drivingly connected to the contact component, and the remote transmission detection component is mounted in the case 10 at a position close to the transmission component for detecting the displacement of the transmission component.
Specifically, in this embodiment, when the bellows assembly 20 deforms and moves in conjunction with the transmission member to generate a displacement, the remote transmission detection member generates a remote transmission signal for transmitting to the background according to the displacement of the transmission member, the contact member generates a contact signal, and the contact signal is transmitted to the background through the connection line 46 and the junction box 45, and the contact signal can be displayed on the display panel 11 at the same time. In the process, as the remote transmission detection component and the contact component generate the remote transmission signal and the contact signal through the displacement action of the transmission component, the signal sources of the remote transmission detection component and the contact component are consistent, the consistency of detection results of the remote transmission signal and the contact signal can be ensured, the consistency of the actually displayed density value of the mechanical part of the remote transmission type gas density relay and the data remotely transmitted to the background by the electronic part can be further ensured, and the remote transmission type gas density relay has the advantage of high detection precision.
More specifically, in this embodiment, the transmission component may be a transmission rod, which is pushed to move when the bellows assembly 20 deforms, and the remote transmission detection component and the contact component may detect the displacement of the transmission rod to generate a corresponding remote transmission signal and a corresponding contact signal.
It should be understood that, in this embodiment, the remote transmission detecting component and the contact component may be provided as the same component, such as a displacement sensor, and the displacement sensor detects the displacement of the transmission rod to generate corresponding electrical signals, which are transmitted to the display panel 11 for display and the background, respectively.
The remote sensing component and the contact component may also be two displacement sensors respectively disposed on the remote sensing component and the contact component, and the two displacement sensors are disposed at different positions of the transmission rod to sense the displacement of the transmission rod to generate corresponding remote signals and contact signals, so as to be displayed on the display panel 11 and transmitted to the background.
The remote sensing part and the contact part can be further configured as follows:
as shown in fig. 1, the remote sensing part includes a connection rod 51, a moving rod 52, a coil 54, and a housing 53.
Specifically, in the present embodiment, the case 53 is detachably attached to the inner wall surface of the watch case 10, the coil 54 is disposed in the case 53, the moving rod 52 is partially disposed in the case 53, and the moving rod 52 is movably disposed with respect to the coil 54, one end of the connecting rod 51 is drivingly connected to the other end of the driving member, the other end of the connecting rod 51 is drivingly connected to the end of the moving rod 52 outside the case 53, and the moving rod 52 is provided with the contact 55 for contacting with the coil 54.
More specifically, the remote transmission detection component in this embodiment includes a connecting rod 51, a moving rod 52, a coil 54 and a housing 53, when the remote transmission detection component detects a remote transmission signal, the connecting rod 51 can drive the moving rod 52 to move relative to the coil 54, so that the contact 55 moves relative to the coil 54, and the moving amount of the relative movement corresponds to a pressure value to generate the remote transmission signal.
More specifically, the remote sensing component and the contact component can share a signal source, i.e., the moving position of the transmission rod 50, so that the signal of the remote sensing component can be synchronous with the contact signal, and especially when the remote sensing component can only test one section of the full range due to limited structure and principle, but cannot measure the full range, and the remote sensing component cannot measure, the temperature and pressure sensing component can continue to sense and generate the remote signal as compensation, so as to ensure the working stability of the remote gas density relay.
Furthermore, a fixed seat is provided at one end of the housing 53, and an opening is formed in the middle of the fixed seat, and the movable rod 52 can move in the openings formed in the middle of the housing 53 and the fixed seat.
Further, another embodiment of the present invention provides a remote gas density relay, as shown in fig. 1-2, the remote gas density relay further includes a temperature and pressure detecting component and an antenna 61, the temperature and pressure detecting component is mounted on the case 10 at a position close to the compensation cavity 22, a detecting end of the temperature and pressure detecting component and a space between an outer wall surface of the bellows assembly 20 located in the compensation cavity 22 and an inner wall surface of the compensation cavity 22 are in communication connection with the antenna 61 and the display panel 11, the remote transmitting detecting component is in communication connection with the antenna 61, and remote transmitting signals detected by the temperature and pressure detecting component and the remote transmitting detecting component are transmitted to a background through the antenna 61.
Specifically, because teletransmission detection part structure and principle are restricted, can only test one section of full range, can not measure full range, to this, when teletransmission detection part can't measure, can continue to detect and generate teletransmission signal as the compensation through the warm-pressing detection part in this embodiment to guarantee this teletransmission formula gas density relay's job stabilization nature.
Further, the antenna 61 is provided with a cover 62 on the outside, and the antenna 61 is provided on an opening 93 of the outer wall surface of the wristwatch case 10 and fixed to the outer wall surface of the wristwatch case 10, such as a bolt. A cover plate 62 is provided on the antenna 61 and fixed to the wristwatch case 10 to protect the antenna 61. And the antenna 61 is connected to the main circuit board 81 of the remote gas density relay through a data line.
Further, another embodiment of the present invention provides a remote transmission type gas density relay, as shown in fig. 1-2, the remote transmission type gas density relay further includes a pressing cover 32, the temperature and pressure integrated sensor 31 is fixed on the side wall of the compensation cavity 22 through the pressing cover 32, and the temperature and pressure detecting component is configured as the temperature and pressure integrated sensor 31, a side wall of the compensation cavity 22 close to the case 10 has a channel 27 communicating with the space between the outer wall surface of the bellows assembly 20 in the compensation cavity 22 and the inner wall surface of the compensation cavity 22, the temperature and pressure integrated sensor 31 is located in the channel 27, and the detecting end of the temperature and pressure integrated sensor 31 extends to the space between the outer wall surface of the bellows assembly 20 in the compensation cavity 22 and the inner wall surface of the compensation cavity 22 through the channel 27.
Specifically, in the present embodiment, by providing the pressing cover 32, the temperature and pressure integrated sensor 31 can be fixed and more stable by the pressing cover 32. Furthermore, a side wall of the compensation cavity 22 close to the watch case 10 is provided with a channel 27 communicating with a space between an outer wall surface of the bellows assembly 20 in the compensation cavity 22 and an inner wall surface of the compensation cavity 22, and by the arrangement of the channel 27, on one hand, an installation space can be provided for the arrangement of the temperature and pressure integrated sensor 31, and on the other hand, the space between the detection end of the temperature and pressure integrated sensor 31 and the first bellows 23 and the second bellows 24 can be ensured to be communicated so as to detect the state of the gas in the compensation cavity 22. And the arrangement of the structure can avoid the interference of the arrangement of the temperature and pressure integrated sensor 31 on the inside of the compensation cavity 22.
Furthermore, as shown in fig. 1-2, compensation cavity 22 has a head 21 near one side wall of case 10, and a temperature and pressure integrated sensor 31 is located in channel 27 and fixed to head 21 by a gland 32, as shown in fig. 1.
Further, another embodiment of the present invention provides a remote gas density relay, and the contact components include a micro switch 42, a circuit board 41, a transmission block 43 and an adjusting screw 44.
Specifically, the circuit board 41 is detachably connected to the inner wall surface of the watch case 10 at a position close to the transmission member, the micro switch 42 is mounted on the circuit board 41, the transmission block 43 is connected to the other end of the transmission member in a transmission manner, and the end of the transmission block 43 is connected to the micro switch 42 through the adjusting screw 44.
More specifically, this kind of contact part that this embodiment provided includes micro-gap switch 42, circuit board 41, drive piece 43 and adjusting screw 44, and in the use, when drive part moved, can the linkage movable block and drive adjusting screw 44 and trigger micro-gap switch 42 and produce the contact signal, just can realize showing the collection work of contact signal through micro-gap switch 42, circuit board 41, drive piece 43 and several simple parts of adjusting screw 44, and its structure is simpler.
Further, in the present embodiment, the temperature and pressure detecting component and the remote sensing component are electrically connected to the signal input terminal of the main circuit board 81, respectively, and the antenna 61 is electrically connected to the signal output terminal of the main circuit board 81.
Further, another embodiment of the present invention provides a remote gas density relay, as shown in fig. 1, the transmission part includes a transmission rod 50, at least two micro switches 42 are provided, and the two micro switches 42 are symmetrically arranged about an axis of the transmission rod 50.
Specifically, in the present embodiment, by providing at least two micro switches 42, the two micro switches 42 operate to ensure the operation stability of the remote gas density relay.
More specifically, in this embodiment, 2 to 4 micro switches 42 may be provided, specifically two micro switches may be provided, or four micro switches may be provided, which may be specifically set according to actual design and use requirements, and this embodiment is not limited thereto.
It should be understood that, in the present embodiment, the transmission component is not limited to include the transmission rod 50, but may be configured in other structures, which may be specifically set according to actual design and use requirements. This embodiment is preferably provided as a rod-like structure as shown by element 50 in fig. 1.
Further, another embodiment of the present invention provides a remote gas density relay, the watch body further includes a base 71, the base 71 is fixedly connected to the outer wall surface of the watch case 10, and the length direction of the base 71 is perpendicular to the length direction of the watch case 10.
Specifically, in the present embodiment, an air intake passage is formed in the base 71, and one end of the air intake passage communicates with the outside and the other end communicates with the space between the first bellows 23 and the second bellows 24.
Furthermore, an air passage is formed on the end 21 of the compensation cavity 22, the air inlet passage is communicated with the air passage through the connecting pipe 72, and during use, external air can enter the compensation cavity 22 through the air inlet passage, the connecting pipe 72 and the air passage.
More specifically, in the present embodiment, the longitudinal direction of base 71 is perpendicular to the longitudinal direction of case 10, and this arrangement makes the structure of the remote gas density relay more compact.
Further, another embodiment of the present invention provides a remote gas density relay, as shown in fig. 1, the bellows assembly 20 includes a first bellows 23 and a second bellows 24, one end of the first bellows 23 is fixedly connected to an inner wall surface of the compensation cavity 22, the other end is provided with a bottom cover 26, and a gap is formed between the bottom cover 26 and the inner wall surface of the compensation cavity 22.
Specifically, in the present embodiment, the second bellows 24 is sleeved in the first bellows 23, one end of the second bellows 24 is fixedly connected to an inner wall surface of the compensation cavity 22, the other end of the second bellows 24 is provided with a base 25, the other end of the second bellows 24 is connected to an inner wall surface of the bottom cover 26 through the base 25, and one end of the transmission member extends into the second bellows 24 and is fixedly connected to the base 25.
More specifically, in this embodiment, one end of the second bellows 24 should be connected to the head 21, and the specific structure can be seen in fig. 1.
Further, another embodiment of the present invention provides a remote gas density relay, as shown in fig. 1-2, the remote gas density relay further comprises a power supply assembly 100, the power supply assembly 100 is detachably connected to the outer wall surface of the watch case 10 at a position of the other end of the compensation cavity 22, the power supply 101 is electrically connected to the main circuit board 81, and the display panel 11, the contact member and the remote sensing member are respectively electrically connected to the main circuit board 81.
Specifically, the remote gas density relay provided in this embodiment is further provided with a power supply assembly 100, and the power supply assembly 100 can be used as the mobile power supply 101 to supply power to the display panel 11, the contact component and the remote detection component in real time, so that the remote gas density relay is more convenient to use.
Further, as shown in fig. 1, the power supply module 100 includes two power supplies 101 arranged side by side, the main circuit board 81 is provided on one side of the power supply module 100, and the main circuit board 81 is fixed to the inner wall surface of the wristwatch case 10 by the support 82. And the main circuit board 81 is connected with the power supply 101 through electric wires, and the circuit board 41 is also connected with the main circuit board 81 through electric wires. The remote transmission signal and the contact signal detected by the remote transmission detecting component and the contact component are transmitted to the circuit board 41, and then the remote transmission signal is transmitted to the main circuit board 81 through the circuit board 41, the main circuit board 81 processes the received remote transmission signal and transmits the processed remote transmission signal to the antenna 61, the processing may be decoding, and the like, which is not described in this embodiment, and the contact signal is transmitted to the display panel 11 through the circuit board 41.
Furthermore, the power supply assembly 100 further includes a power supply box 102, the power supply box 102 is fixedly connected to an end of the watch case 10 away from the display panel 11, for example, the power supply box 102 may be fixedly connected to an end of the watch case 10 away from the display panel 11 by bolts, and an end of the power supply box 102 away from the watch case 10 is further provided with a power supply box cover 103, and the power supply box cover 103 may be fixed to an end of the power supply box 102 away from the watch case 10 by bolts, fasteners, or the like.
It should be understood that, in this embodiment, the remote transmission detection component and the contact component may also be configured as a component with data processing, and when the remote transmission detection component and the contact component detect the remote transmission signal and the contact signal, the remote transmission signal and the contact signal can be directly transmitted to the antenna 61 or the display panel 11.
Further, another embodiment of the present invention provides a remote gas density relay, as shown in fig. 1, the display panel 11 is configured as a liquid crystal display, and a side of the display panel 11 facing away from the watch case 10 is provided with a cover 92, and the cover 92 covers the periphery of the display panel 11.
Specifically, in the present embodiment, the display panel 11 is provided with a liquid crystal display that can ensure the display data of the detection data, and a cover 92 is provided on one side of the display panel 11, and the cover 92 can protect the display panel 11.
Further, in the present embodiment, a terminal box 45 is further provided outside the case 10 of the remote gas density relay, and the main circuit board 81 and the transmission lines in the remote gas density relay are integrated in the terminal box 45.
Further, in the present embodiment, as shown in fig. 1 and 2, the power supply 101 is connected to the main circuit board 81 through the power supply line 104, the main circuit board 81 is connected to the coil 54 and the micro switch 42 through the connection line 59 and the coil 54, respectively, the main circuit board 81 is connected to the temperature and pressure integrated sensor 31 through the connection line 33, the display panel 11 is connected to the circuit board through the flat cable 12, the main circuit board 81 is connected to the antenna 61 through the connection line 63, and the junction box 45 is connected to the main circuit board 81 through the connection line 46.
Further, in the present embodiment, a washer 56 is further provided at one end of the coil 54 close to the circuit board, and the coil 54 is connected to the circuit board at one end thereof by a connection wire 57 and at the other end thereof by a connection wire 58.
Finally, it should be noted that the specific types of the liquid crystal display, the temperature and pressure integrated sensor 31, and the micro switch 42 should be set according to the actual design and the use requirement, and this embodiment does not limit this uniquely.
The invention discloses a remote transmission type gas density relay, which comprises a meter body as shown in figures 1-2, wherein the meter body comprises a meter shell 10 and a display part arranged at one end of the meter shell 10, a compensation cavity 22 is arranged at one end, close to the display part, of an inner cavity of the meter shell 10, the inner cavity of the compensation cavity 22 is communicated with the inner cavity of the meter shell 10, and a corrugated pipe assembly 20 is arranged in the compensation cavity 22. The remote transmission type gas density relay further comprises a remote transmission detection part and a transmission part, the display part comprises a display panel 11 and a contact part, when the corrugated pipe assembly 20 deforms and is linked with the transmission part to move to generate displacement, the remote transmission detection part generates a remote transmission signal which is transmitted to a background, and the contact part generates a display contact signal and displays the display contact signal on the display panel 11. In the process, as the signal source sources of the remote transmission signal and the contact signal are consistent, the consistency of the detection results of the remote transmission detection component and the contact component can be ensured, and the consistency of the actually displayed density value of the mechanical part of the instrument and the data remotely transmitted to the background by the electronic part of the remote transmission type gas density relay can be further ensured.
While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A remote transmission type gas density relay comprises a meter body, wherein the meter body comprises a meter shell and a display part arranged at one end of the meter shell, a compensation cavity is arranged at one end, close to the display part, of an inner cavity of the meter shell, and a corrugated pipe assembly is arranged in the compensation cavity; it is characterized in that the preparation method is characterized in that,
the remote transmission type gas density relay further comprises a remote transmission detection component, a transmission component and a contact component, wherein the display component comprises a display panel, and the display panel is in communication connection with the contact component; wherein,
one end of the transmission component is in transmission connection with the corrugated pipe assembly, the other end of the transmission component is located outside the compensation cavity and in transmission connection with the contact component, and the remote transmission detection component is installed in the position, close to the transmission component, in the watch case and used for detecting the displacement of the transmission component.
2. The remote gas density relay according to claim 1, wherein the remote sensing part comprises a connecting rod, a moving rod, a coil and a housing; wherein,
the shell is detachably connected to the inner wall surface of the watch shell, the coil is arranged in the shell, the moving rod is positioned in the shell and movably arranged relative to the coil, one end of the connecting rod is in transmission connection with the other end of the transmission part, and the other end of the connecting rod is in transmission connection with one end of the moving rod positioned outside the shell; and,
and the moving rod is provided with a contact for contacting with the coil.
3. The remote gas density relay as claimed in claim 1, wherein the remote gas density relay further comprises a warm-pressing detection component and an antenna, the warm-pressing detection component is mounted on the watch case at a position close to the compensation cavity, and a detection end of the warm-pressing detection component and a space between an outer wall surface of the bellows assembly located in the compensation cavity and an inner wall surface of the compensation cavity are located, and the warm-pressing detection component is respectively in communication connection with the antenna and the display panel, the remote detection component is in communication connection with the antenna, and remote signals detected by the warm-pressing detection component and the remote detection component are transmitted to the background through the antenna.
4. The remote gas density relay as claimed in claim 3, wherein the remote gas density relay further comprises a gland, the warm-pressing detecting member is configured as a warm-pressing integrated sensor, the warm-pressing integrated sensor is fixed on the sidewall of the compensation cavity through the gland, and a sidewall of the compensation cavity close to the watch case has a channel communicating with a space between the outer wall surface of the bellows assembly in the compensation cavity and the inner wall surface of the compensation cavity, the warm-pressing integrated sensor is located in the channel, and the detecting end of the warm-pressing integrated sensor extends to a space between the outer wall surface of the bellows assembly in the compensation cavity and the inner wall surface of the compensation cavity through the channel.
5. The remote gas density relay according to claim 1, wherein the contact member comprises a micro switch, a circuit board, a driving block and an adjusting screw; wherein;
the circuit board is detachably connected to the position, close to the transmission part, of the inner wall surface of the watch case, the micro switch is installed on the circuit board, the transmission block is in transmission connection with the other end of the transmission part, and the end of the transmission block is connected with the micro switch through the adjusting screw.
6. The remote gas density relay according to claim 5, wherein the transmission member comprises a transmission rod, the micro switches are provided in at least two, and the two micro switches are symmetrically provided about an axis of the transmission rod.
7. The remote gas density relay according to any of claims 1 to 6, wherein the case further comprises a base fixedly attached to an outer wall surface of the case, and a length direction of the base is perpendicular to a length direction of the case; and,
an air inlet channel is formed in the base, one end of the air inlet channel is communicated with the outside, and the other end of the air inlet channel is communicated with the space inside the corrugated pipe assembly.
8. The remote gas density relay according to any one of claims 1 to 6, wherein the bellows assembly comprises a first bellows and a second bellows, one end of the first bellows is fixedly connected to an inner wall surface of the compensation chamber, the other end of the first bellows is provided with a bottom cover, and a gap is formed between the bottom cover and the inner wall surface of the compensation chamber;
the second corrugated pipe is sleeved in the first corrugated pipe, one end of the second corrugated pipe is fixedly connected to the inner wall surface of the compensation cavity, the other end of the second corrugated pipe is provided with a base, the other end of the second corrugated pipe is connected to the inner wall surface of the bottom cover through the base, and one end of the transmission part extends into the second corrugated pipe and is fixedly connected with the base.
9. The remote gas density relay according to any of claims 1-6, wherein said remote gas density relay further comprises a power supply unit and a main circuit board, said power supply unit being detachably attached to the outer wall surface of said case at a position at the other end of said compensation chamber, and said power supply being electrically connected to said main circuit board, and said display panel, said contact unit and said remote sensing unit being electrically connected to said main circuit board, respectively.
10. The remote gas density relay according to any of claims 1-6, wherein the display panel is provided as a liquid crystal display and a side of the display panel facing away from the watch case is provided with a cover covering the periphery of the display panel.
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| CN202210149922.3A CN114496646B (en) | 2022-02-18 | 2022-02-18 | Remote-transmission type gas density relay |
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| CN114496646B (en) | 2024-07-02 |
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