CN212275026U - Input type double-range liquid level transmitter - Google Patents
Input type double-range liquid level transmitter Download PDFInfo
- Publication number
- CN212275026U CN212275026U CN202021024627.8U CN202021024627U CN212275026U CN 212275026 U CN212275026 U CN 212275026U CN 202021024627 U CN202021024627 U CN 202021024627U CN 212275026 U CN212275026 U CN 212275026U
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- circuit board
- liquid level
- pressure sensor
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Abstract
The utility model discloses a drop-in type double-range liquid level transmitter, which comprises a transverse shell, a connector and a vertical shell, wherein the inner cavity of the transverse shell is provided with a large-range pressure sensor and a small-range pressure sensor; an insulating sleeve is sleeved in the inner cavity of the vertical shell, and a large-range circuit board, an isolation disc and a small-range circuit board are sleeved in the inner cavity of the insulating sleeve; the large-range pressure sensor is electrically connected with the large-range circuit board, the small-range pressure sensor is electrically connected with the small-range circuit board, the large-range circuit board is electrically connected with the large-range liquid level sensor and the large-range temperature sensor, the small-range circuit board is electrically connected with the small-range liquid level sensor and the small-range temperature sensor, the end, far away from the transverse shell, of the vertical shell is fixedly provided with the seal head, the seal head is provided with a cable leading-out hole, and a sealing assembly is arranged. The liquid level height is measured by adopting the double pressure sensors, so that the situation that the measurement result is inaccurate or cannot be measured due to too low liquid depth is avoided.
Description
Technical Field
The utility model relates to a liquid level detection technical field, in particular to input formula dual-range liquid level changer.
Background
The liquid level transmitter is based on the principle that the static pressure of the measured liquid is proportional to the height of the liquid, namely, the pressure sensor is adopted to convert the measured pressure into an electric signal, and the electric signal is converted into a standard electric signal through temperature compensation and linear correction, so that the liquid height of a liquid medium is accurately measured and transmitted.
The range of the liquid level transmitter is selected according to the liquid height, however, along with the reduction of the liquid height, when the measured liquid height is lower, the original pressure sensor is still adopted for measurement, and due to the fact that the liquid depth is too low, the pressure is lower, errors can occur in the pressure sensed by the pressure sensor, and the measurement result is inaccurate or cannot be measured.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a not enough to prior art exists, the utility model aims to provide a throw-in double-range level transmitter, it adopts two pressure sensor to survey the liquid level height, selects wide range pressure sensor when the liquid depth is higher, selects little range pressure sensor when the liquid depth is lower to avoid because the liquid depth is low excessively to cause the inaccurate or the unable circumstances of measuring result to take place.
The above technical purpose of the present invention can be achieved by the following technical solutions:
an input type double-range liquid level transmitter is characterized by comprising a transverse shell and a vertical shell, wherein a first cavity, a wire passing cavity and a second cavity are sequentially arranged in the inner cavity of the transverse shell along the transverse extension direction of the transverse shell, the transverse shell is provided with a first mounting port and a second mounting port which are oppositely arranged along the transverse extension direction of the transverse shell, the first mounting port is directly communicated with the first cavity, the second mounting port is directly communicated with the second cavity, a large-range pressure sensor is mounted in the first cavity, a first end cover is fixedly arranged on the first mounting port, a first water inlet hole is formed in the first end cover, a small-range pressure sensor is mounted in the second cavity, a second end cover is fixedly arranged on the second mounting port, and a second water inlet hole is formed in the second end cover;
the vertical shell is fixedly connected to the wire passing cavity of the transverse shell through a connector, and the connector is provided with a cable channel for communicating the inner cavity of the vertical shell with the wire passing cavity;
an insulating sleeve is sleeved in an inner cavity of the vertical shell, a large-range circuit board, a small-range circuit board and an isolation disc positioned between the large-range circuit board and the small-range circuit board are sleeved in the inner cavity of the insulating sleeve, and a wire passing hole is formed in the isolation disc;
the wide-range pressure sensor is electrically connected with the wide-range circuit board, the small-range pressure sensor is electrically connected with the small-range circuit board, the wide-range circuit board is electrically connected with the wide-range liquid level sensor and the wide-range temperature sensor, and the small-range circuit board is electrically connected with the small-range liquid level sensor and the small-range temperature sensor;
the end, far away from horizontal casing, of vertical casing has set firmly the head, the head has seted up the cable and has drawn forth the hole, be provided with seal assembly in the cable draws forth the hole.
Through adopting above-mentioned technical scheme, it adopts two pressure sensor to survey the liquid level height, selects wide range pressure sensor when the liquid depth is higher, selects small-range pressure sensor when the liquid depth is lower to avoid because the liquid depth is low and cause inaccurate or the condition that can't measure of measuring result to take place.
The utility model discloses further set up to: the connector includes first linkage segment, interlude and second linkage segment in order by horizontal casing to vertical casing direction, first linkage segment and horizontal casing fixed connection, second linkage segment and vertical casing fixed connection, the external diameter of interlude is greater than the external diameter of first linkage segment and the external diameter of second linkage segment.
Through adopting above-mentioned technical scheme, the interlude is connector and vertical casing fixed connection and connector and horizontal casing fixed connection's boundary, is convenient for control the fixed connection position of connector and vertical casing and horizontal casing.
The utility model discloses further set up to: the transverse shell is provided with a fixing hole at the wire passing cavity, and the first connecting section is in interference fit with the fixing hole.
Through adopting above-mentioned technical scheme for the fixed connection of horizontal casing and first linkage segment, and the sealed water-proof effects of both junctions is good.
The utility model discloses further set up to: the inner peripheral surface of the vertical shell is provided with an internal thread, the outer peripheral surface of the second connecting section is provided with an external thread, and the second connecting section is in threaded connection with the vertical shell.
Through adopting above-mentioned technical scheme, threaded connection simple structure is convenient for install and dismantle.
The utility model discloses further set up to: the outer peripheral face of one end of the second connecting section, which is close to the middle section, is provided with an annular groove, an inner extrusion ring and an elastic waterproof sealing ring are sleeved in the annular groove of the second connecting section, and the end part of the vertical shell is abutted to the middle section.
Through adopting above-mentioned technical scheme, the waterproof sealing performance of being connected between elasticity waterproof sealing washer reinforcing second linkage segment and the vertical casing.
The utility model discloses further set up to: the internal perisporium that the hole was drawn to the cable is provided with cyclic annular boss, seal assembly includes by being close to cyclic annular boss to keeping away from interior extrusion ring, elastic sealing ring, outer extrusion ring and the sealed post that cyclic annular boss direction set up in order, hole fixed connection is drawn to sealed post and cable, the cable via hole has been seted up to the sealed post.
Through adopting above-mentioned technical scheme, draw out hole fixed connection's position through adjusting sealed post and cable, adjust the distance of sealed post and cyclic annular boss, and then adjust the distance of interior extrusion ring and outer extrusion ring, make the elastic sealing ring who is located between extrusion ring and the outer extrusion ring receive extrusion deformation, make the cable of wearing to locate elastic sealing ring receive elastic sealing ring's extrusion seal, even along with the increase of the formula of throwing into double-range liquid level transmitter dive degree of depth, the cable is along with receiving hydraulic increase and shrink, outer extrusion ring also receives hydraulic increase to be close to the direction of interior extrusion ring simultaneously, elastic sealing ring further deforms, with the shrink of adaptation electric wire, reach waterproof sealing's purpose.
The utility model discloses further set up to: the sealing column is provided with external threads, the cable leading-out hole is provided with internal threads, and the sealing column is in threaded connection with the cable leading-out hole.
Through adopting above-mentioned technical scheme, threaded connection simple structure, the installation and the dismantlement of being convenient for, and be convenient for adjust the position that sealed post and cable outlet fixed connection.
The utility model discloses further set up to: the head is provided with cable protection sleeve, cable protection sleeve is including cup jointing section and cable protection section, the outside in the head is cup jointed to the cup jointing section, the internal diameter of cable protection section is less than the internal diameter of cup jointing section.
Through adopting above-mentioned technical scheme, avoid being located the outside cable of input double-range liquid level transmitter and excessively taking place to buckle and cause the cable to damage in the part that is close to the head.
The utility model discloses further set up to: a first annular groove is formed in the outer peripheral surface of the wide-range pressure sensor, and a first waterproof sealing ring is sleeved in the first annular groove of the wide-range pressure sensor.
Through adopting above-mentioned technical scheme, first annular groove is used for cup jointing the location between first waterproof sealing washer and the wide range pressure sensor, and first waterproof sealing washer is arranged in blocking water entering and crosses the inner chamber of line cavity and vertical casing, prevents to be located the electronic components damage of the inner chamber of line cavity and vertical casing.
The utility model discloses further set up to: a second annular groove is formed in the outer peripheral surface of the small-range pressure sensor, and a second waterproof sealing ring is sleeved in the second annular groove of the small-range pressure sensor.
Through adopting above-mentioned technical scheme, the second annular groove is used for cup jointing the location between waterproof sealing washer of second and the wide range pressure sensor, and the waterproof sealing washer of second is arranged in blocking water entering and crosses the inner chamber of line cavity and vertical casing, prevents to be located the electronic components damage of the inner chamber of line cavity and vertical casing.
To sum up, the utility model discloses following beneficial effect has: the liquid level height is measured by adopting the double pressure sensors, the large-range pressure sensor is selected when the liquid depth is higher, and the small-range pressure sensor is selected when the liquid depth is lower, so that the condition that the measurement result is inaccurate or cannot be measured due to too low liquid depth is avoided.
Drawings
Fig. 1 is an isometric view of the present invention;
fig. 2 is a side view of the present invention;
FIG. 3 is a sectional view taken along line A-A of FIG. 2;
fig. 4 is a schematic diagram of the explosion structure of the present invention.
In the figure, 1, a transverse shell; 11. a first mounting port; 111. a first end cap; 1111. a first water inlet hole; 12. a first chamber; 121. a wide range pressure sensor; 1211. a first annular groove; 1212. a first waterproof seal ring; 13. a wire passing chamber; 14. a second chamber; 141. a small-range pressure sensor; 1411. a second annular groove; 1412. a second waterproof seal ring; 15. a second mounting opening; 151. a second end cap; 1511. a second water inlet hole; 16. a fixing hole; 2. a connector; 21. a first connection section; 22. a middle section; 23. a second connection section; 231. an annular groove; 232. an elastic waterproof sealing ring; 233. a fixing ring; 24. a cable channel; 3. a vertical housing; 4. an insulating sleeve; 5. a wide-range circuit board; 51. a wide range liquid level sensor; 52. a wide range temperature sensor; 6. a separator disc; 61. a wire passing hole; 7. a small-range circuit board; 71. a small-range liquid level sensor; 72. a small-range temperature sensor; 8. sealing the end; 81. a cable outlet hole; 82. an annular boss; 9. a seal assembly; 91. an inner extrusion ring; 92. an elastic sealing ring; 93. an outer extrusion ring; 94. sealing the column; 941. a cable via; 10. a cable protection sleeve; 101. a sleeving section; 102. a cable protection section.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
As shown in fig. 1-3, for the utility model discloses a throw-in double-range liquid level transmitter, including horizontal casing 1, vertical casing 3 and be used for vertical casing 3 and horizontal casing 1 fixed connection's connector 2 together.
Referring to fig. 3 and 4, a first cavity 12, a wire passing cavity 13 and a second cavity 14 are sequentially arranged in the inner cavity of the transverse housing 1 along the transverse extending direction, the cross sections of the first cavity 12, the wire passing cavity 13 and the second cavity 14 along the transverse extending direction perpendicular to the transverse housing 1 are all arranged in a circular shape, and the inner diameter of the wire passing cavity 13 is smaller than the inner diameter of the first cavity 12 and the inner diameter of the second cavity 14.
The transverse housing 1 has a first mounting opening 11 and a second mounting opening 15 which are arranged opposite to each other in the transverse direction of extension thereof, and the first mounting opening 11 and the second mounting opening 15 are both arranged in a circular shape.
The first mounting port 11 and the first chamber 12 are directly communicated, the center line of the first mounting port 11 and the center line of the first chamber 12 are overlapped, and the inner diameter of the first mounting port 11 is larger than that of the first chamber 12. The first chamber 12 is internally provided with a wide-range pressure sensor 121, a first annular groove 1211 is formed in the outer peripheral surface of the wide-range pressure sensor 121, and a first waterproof sealing ring 1212 is sleeved in the first annular groove 1211 of the wide-range pressure sensor 121. 11 threaded connection of first installing port has first end cover 111, and four first inlet opening 1111 have evenly been seted up to first end cover 111.
The second mounting port 15 and the second chamber 14 are directly communicated, the center line of the second mounting port 15 and the center line of the second chamber 14 are overlapped, and the inner diameter of the second mounting port 15 is larger than that of the second chamber 14. The small-range pressure sensor 141 is installed in the second chamber 14, a second annular groove 1411 is formed in the outer peripheral surface of the small-range pressure sensor 141, and a second waterproof sealing ring 1412 is sleeved in the second annular groove 1411 of the small-range pressure sensor 141. Second mounting hole 15 threaded connection has second end cover 151, and four second inlet openings 1511 have evenly been seted up to second end cover 151.
The connector 2 is provided with a cable channel 24 arranged from the transverse shell 1 to the vertical shell 3, and the cable channel 24 is used for communicating the inner cavity of the vertical shell 3 with the wire passing cavity 13. The connector 2 comprises a first connecting section 21, an intermediate section 22 and a second connecting section 23 in sequence from the transverse shell 1 to the vertical shell 3, and the outer diameter of the intermediate section 22 is larger than that of the first connecting section 21 and that of the second connecting section 23. The transverse housing 1 is provided with a fixing hole 16 at the position of the wire passing cavity 13, and the first connecting section 21 is in interference fit with the fixing hole 16. The outer peripheral surface of the second connecting section 23 is provided with an external thread, the inner peripheral surface of one end of the vertical shell 3 close to the transverse shell 1 is provided with an internal thread, and the second connecting section 23 is in threaded connection with the vertical shell 3. And the second linkage segment 23 has offered the annular groove 231 near the one end peripheral face of interlude 22, and second linkage segment 23 has cup jointed the waterproof sealing washer of elasticity 232 in annular groove 231, and the tip butt of vertical casing 3 is in interlude 22.
The inner chamber cover of vertical casing 3 is equipped with insulating sleeve 4, and the tip that interlude 22 was kept away from to second linkage segment 23 upwards extends and has solid fixed ring 233, and the internal diameter of solid fixed ring 233 is greater than cable channel 24 in the internal diameter of second linkage segment 23 department, and the one end of insulating sleeve 4 is pegged graft in solid fixed ring 233, and the tip butt of insulating sleeve 4 keeps away from the tip of interlude 22 in second linkage segment 23.
The inner cavity of the insulating sleeve 4 is sleeved with a wide-range circuit board 5, an isolation disc 6 and a small-range circuit board 7 in sequence along the direction close to the transverse shell 1 and far away from the transverse shell 1, and the isolation disc 6 is provided with a wire passing hole 61. The wide-range pressure sensor 121 is electrically connected with the wide-range circuit board 5, and the wide-range circuit board 5 is electrically connected with the wide-range liquid level sensor 51 and the wide-range temperature sensor 52; the small-range pressure sensor 141 is electrically connected to the small-range circuit board 7, and the small-range liquid level sensor 71 and the small-range temperature sensor 72 are electrically connected to the small-range circuit board 7.
An annular boss 82 is integrally formed on the cable outlet 81 near the inner peripheral wall of the vertical housing 3. The sealing assembly 9 comprises an inner extrusion ring 91, an elastic sealing ring 92, an outer extrusion ring 93 and a sealing column 94 which are sequentially arranged from the direction close to the vertical shell 3 to the direction far away from the vertical shell 3; the sealing post 94 is provided with external threads, the cable leading-out hole 81 is provided with internal threads, the sealing post 94 is in threaded connection with the cable leading-out hole 81, and a cable through hole 941 is formed in the sealing post 94.
The end socket 8 is provided with a cable protection sleeve 10, the cable protection sleeve 10 comprises a sleeve joint section 101 and a cable protection section 102, the sleeve joint section 101 is sleeved outside the end socket 8, and the inner diameter of the cable protection section 102 is smaller than that of the sleeve joint section 101.
The working principle of the input type double-range liquid level transmitter is as follows: the liquid level height is measured by adopting the double pressure sensors, the wide-range pressure sensor 121 is selected when the liquid depth is high, and the small-range pressure sensor 141 is selected when the liquid depth is low, so that the situation that the measurement result is inaccurate or cannot be measured due to the fact that the liquid depth is too low is avoided.
The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.
Claims (10)
1. The utility model provides an input formula double-range liquid level transmitter, its characterized in that, includes horizontal casing (1) and vertical casing (3), the inner chamber of horizontal casing (1) is provided with first cavity (12), cross line cavity (13) and second cavity (14) along its horizontal extending direction in order, horizontal casing (1) has first installing port (11) and second installing port (15) along its horizontal extending direction relative setting, first installing port (11) and first cavity (12) direct intercommunication, second installing port (15) and second cavity (14) direct intercommunication, install wide-range pressure sensor (121) in first cavity (12), first installing port (11) have set firmly first end cover (111), first inlet opening (1111) have been seted up to first end cover (111), install small-range pressure sensor (141) in second cavity (14), a second end cover (151) is fixedly arranged at the second mounting opening (15), and a second water inlet hole (1511) is formed in the second end cover (151);
the vertical shell (3) is fixedly connected to the wire passing cavity (13) of the transverse shell (1) through the connector (2), and the connector (2) is provided with a cable channel (24) for communicating the inner cavity of the vertical shell (3) with the wire passing cavity (13);
an insulating sleeve (4) is sleeved in an inner cavity of the vertical shell (3), a large-range circuit board (5), a small-range circuit board (7) and an isolation disc (6) located between the large-range circuit board (5) and the small-range circuit board (7) are sleeved in the inner cavity of the insulating sleeve (4), and a wire passing hole (61) is formed in the isolation disc (6);
the wide-range pressure sensor (121) is electrically connected with the wide-range circuit board (5), the small-range pressure sensor (141) is electrically connected with the small-range circuit board (7), the wide-range circuit board (5) is electrically connected with the wide-range liquid level sensor (51) and the wide-range temperature sensor (52), and the small-range circuit board (7) is electrically connected with the small-range liquid level sensor (71) and the small-range temperature sensor (72);
the cable end socket is characterized in that one end, far away from the transverse shell (1), of the vertical shell (3) is fixedly provided with an end socket (8), the end socket (8) is provided with a cable leading-out hole (81), and a sealing assembly (9) is arranged in the cable leading-out hole (81).
2. A drop-in type dual-range liquid level transmitter according to claim 1, wherein the connector (2) comprises a first connecting section (21), a middle section (22) and a second connecting section (23) in sequence from the transverse housing (1) to the vertical housing (3), the first connecting section (21) is fixedly connected with the transverse housing (1), the second connecting section (23) is fixedly connected with the vertical housing (3), and the outer diameter of the middle section (22) is larger than the outer diameter of the first connecting section (21) and the outer diameter of the second connecting section (23).
3. A drop-in dual-range level transmitter as claimed in claim 2, wherein the transverse housing (1) is provided with a fixing hole (16) at the wire passing chamber (13), and the first connecting section (21) and the fixing hole (16) are in interference fit.
4. A drop-in dual-range level transmitter as claimed in claim 2, wherein the inner circumferential surface of the vertical housing (3) is provided with an internal thread, the outer circumferential surface of the second connecting section (23) is provided with an external thread, and the second connecting section (23) is in threaded connection with the vertical housing (3).
5. The drop-in type double-range liquid level transmitter according to claim 4, wherein an annular groove (231) is formed in the outer peripheral surface of one end, close to the middle section (22), of the second connecting section (23), an elastic waterproof sealing ring (232) is sleeved in the annular groove (231) of the second connecting section (23), and the end portion of the vertical shell (3) abuts against the middle section (22).
6. The drop-in type double-range liquid level transmitter of claim 1, wherein the inner peripheral wall of the cable outlet hole (81) is provided with an annular boss (82), the sealing assembly (9) comprises an inner extrusion ring (91), an elastic sealing ring (92), an outer extrusion ring (93) and a sealing column (94) which are sequentially arranged from the direction close to the annular boss (82) to the direction far away from the annular boss (82), the sealing column (94) is fixedly connected with the cable outlet hole (81), and the sealing column (94) is provided with a cable through hole (941).
7. A drop-in dual range level transmitter according to claim 6, wherein the sealing post (94) is provided with external threads and the cable exit hole (81) is provided with internal threads, the sealing post (94) and the cable exit hole (81) being threadedly connected.
8. A drop-in dual-range level transmitter according to claim 1, wherein the head (8) is provided with a cable protection sleeve (10), the cable protection sleeve (10) comprises a socket section (101) and a cable protection section (102), the socket section (101) is sleeved outside the head (8), and the inner diameter of the cable protection section (102) is smaller than the inner diameter of the socket section (101).
9. A projection type dual-range liquid level transmitter as claimed in claim 1, wherein the outer peripheral surface of the wide-range pressure sensor (121) is provided with a first annular groove (1211), and the wide-range pressure sensor (121) is provided with a first waterproof sealing ring (1212) inside the first annular groove (1211).
10. The drop-in dual-range liquid level transmitter of claim 1, wherein a second annular groove (1411) is formed in an outer peripheral surface of the small-range pressure sensor (141), and a second waterproof sealing ring (1412) is sleeved in the second annular groove (1411) of the small-range pressure sensor (141).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024627.8U CN212275026U (en) | 2020-06-05 | 2020-06-05 | Input type double-range liquid level transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021024627.8U CN212275026U (en) | 2020-06-05 | 2020-06-05 | Input type double-range liquid level transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212275026U true CN212275026U (en) | 2021-01-01 |
Family
ID=73882160
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021024627.8U Expired - Fee Related CN212275026U (en) | 2020-06-05 | 2020-06-05 | Input type double-range liquid level transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212275026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959524A (en) * | 2021-10-22 | 2022-01-21 | 大庆市镁龙测控技术有限公司 | Liquid level transmitter with wide and adjustable measuring range |
-
2020
- 2020-06-05 CN CN202021024627.8U patent/CN212275026U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113959524A (en) * | 2021-10-22 | 2022-01-21 | 大庆市镁龙测控技术有限公司 | Liquid level transmitter with wide and adjustable measuring range |
| CN113959524B (en) * | 2021-10-22 | 2022-04-29 | 大庆市镁龙测控技术有限公司 | Liquid level transmitter with wide and adjustable measuring range |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210101 |
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| CF01 | Termination of patent right due to non-payment of annual fee |